diff options
Diffstat (limited to 'src/pkg/debug')
53 files changed, 0 insertions, 8968 deletions
diff --git a/src/pkg/debug/dwarf/buf.go b/src/pkg/debug/dwarf/buf.go deleted file mode 100644 index 53c46eb4b..000000000 --- a/src/pkg/debug/dwarf/buf.go +++ /dev/null @@ -1,181 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Buffered reading and decoding of DWARF data streams. - -package dwarf - -import ( - "encoding/binary" - "strconv" -) - -// Data buffer being decoded. -type buf struct { - dwarf *Data - order binary.ByteOrder - format dataFormat - name string - off Offset - data []byte - err error -} - -// Data format, other than byte order. This affects the handling of -// certain field formats. -type dataFormat interface { - // DWARF version number. Zero means unknown. - version() int - - // 64-bit DWARF format? - dwarf64() (dwarf64 bool, isKnown bool) - - // Size of an address, in bytes. Zero means unknown. - addrsize() int -} - -// Some parts of DWARF have no data format, e.g., abbrevs. -type unknownFormat struct{} - -func (u unknownFormat) version() int { - return 0 -} - -func (u unknownFormat) dwarf64() (bool, bool) { - return false, false -} - -func (u unknownFormat) addrsize() int { - return 0 -} - -func makeBuf(d *Data, format dataFormat, name string, off Offset, data []byte) buf { - return buf{d, d.order, format, name, off, data, nil} -} - -func (b *buf) uint8() uint8 { - if len(b.data) < 1 { - b.error("underflow") - return 0 - } - val := b.data[0] - b.data = b.data[1:] - b.off++ - return val -} - -func (b *buf) bytes(n int) []byte { - if len(b.data) < n { - b.error("underflow") - return nil - } - data := b.data[0:n] - b.data = b.data[n:] - b.off += Offset(n) - return data -} - -func (b *buf) skip(n int) { b.bytes(n) } - -func (b *buf) string() string { - for i := 0; i < len(b.data); i++ { - if b.data[i] == 0 { - s := string(b.data[0:i]) - b.data = b.data[i+1:] - b.off += Offset(i + 1) - return s - } - } - b.error("underflow") - return "" -} - -func (b *buf) uint16() uint16 { - a := b.bytes(2) - if a == nil { - return 0 - } - return b.order.Uint16(a) -} - -func (b *buf) uint32() uint32 { - a := b.bytes(4) - if a == nil { - return 0 - } - return b.order.Uint32(a) -} - -func (b *buf) uint64() uint64 { - a := b.bytes(8) - if a == nil { - return 0 - } - return b.order.Uint64(a) -} - -// Read a varint, which is 7 bits per byte, little endian. -// the 0x80 bit means read another byte. -func (b *buf) varint() (c uint64, bits uint) { - for i := 0; i < len(b.data); i++ { - byte := b.data[i] - c |= uint64(byte&0x7F) << bits - bits += 7 - if byte&0x80 == 0 { - b.off += Offset(i + 1) - b.data = b.data[i+1:] - return c, bits - } - } - return 0, 0 -} - -// Unsigned int is just a varint. -func (b *buf) uint() uint64 { - x, _ := b.varint() - return x -} - -// Signed int is a sign-extended varint. -func (b *buf) int() int64 { - ux, bits := b.varint() - x := int64(ux) - if x&(1<<(bits-1)) != 0 { - x |= -1 << bits - } - return x -} - -// Address-sized uint. -func (b *buf) addr() uint64 { - switch b.format.addrsize() { - case 1: - return uint64(b.uint8()) - case 2: - return uint64(b.uint16()) - case 4: - return uint64(b.uint32()) - case 8: - return uint64(b.uint64()) - } - b.error("unknown address size") - return 0 -} - -func (b *buf) error(s string) { - if b.err == nil { - b.data = nil - b.err = DecodeError{b.name, b.off, s} - } -} - -type DecodeError struct { - Name string - Offset Offset - Err string -} - -func (e DecodeError) Error() string { - return "decoding dwarf section " + e.Name + " at offset 0x" + strconv.FormatInt(int64(e.Offset), 16) + ": " + e.Err -} diff --git a/src/pkg/debug/dwarf/const.go b/src/pkg/debug/dwarf/const.go deleted file mode 100644 index 93c68881a..000000000 --- a/src/pkg/debug/dwarf/const.go +++ /dev/null @@ -1,454 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Constants - -package dwarf - -import "strconv" - -// An Attr identifies the attribute type in a DWARF Entry's Field. -type Attr uint32 - -const ( - AttrSibling Attr = 0x01 - AttrLocation Attr = 0x02 - AttrName Attr = 0x03 - AttrOrdering Attr = 0x09 - AttrByteSize Attr = 0x0B - AttrBitOffset Attr = 0x0C - AttrBitSize Attr = 0x0D - AttrStmtList Attr = 0x10 - AttrLowpc Attr = 0x11 - AttrHighpc Attr = 0x12 - AttrLanguage Attr = 0x13 - AttrDiscr Attr = 0x15 - AttrDiscrValue Attr = 0x16 - AttrVisibility Attr = 0x17 - AttrImport Attr = 0x18 - AttrStringLength Attr = 0x19 - AttrCommonRef Attr = 0x1A - AttrCompDir Attr = 0x1B - AttrConstValue Attr = 0x1C - AttrContainingType Attr = 0x1D - AttrDefaultValue Attr = 0x1E - AttrInline Attr = 0x20 - AttrIsOptional Attr = 0x21 - AttrLowerBound Attr = 0x22 - AttrProducer Attr = 0x25 - AttrPrototyped Attr = 0x27 - AttrReturnAddr Attr = 0x2A - AttrStartScope Attr = 0x2C - AttrStrideSize Attr = 0x2E - AttrUpperBound Attr = 0x2F - AttrAbstractOrigin Attr = 0x31 - AttrAccessibility Attr = 0x32 - AttrAddrClass Attr = 0x33 - AttrArtificial Attr = 0x34 - AttrBaseTypes Attr = 0x35 - AttrCalling Attr = 0x36 - AttrCount Attr = 0x37 - AttrDataMemberLoc Attr = 0x38 - AttrDeclColumn Attr = 0x39 - AttrDeclFile Attr = 0x3A - AttrDeclLine Attr = 0x3B - AttrDeclaration Attr = 0x3C - AttrDiscrList Attr = 0x3D - AttrEncoding Attr = 0x3E - AttrExternal Attr = 0x3F - AttrFrameBase Attr = 0x40 - AttrFriend Attr = 0x41 - AttrIdentifierCase Attr = 0x42 - AttrMacroInfo Attr = 0x43 - AttrNamelistItem Attr = 0x44 - AttrPriority Attr = 0x45 - AttrSegment Attr = 0x46 - AttrSpecification Attr = 0x47 - AttrStaticLink Attr = 0x48 - AttrType Attr = 0x49 - AttrUseLocation Attr = 0x4A - AttrVarParam Attr = 0x4B - AttrVirtuality Attr = 0x4C - AttrVtableElemLoc Attr = 0x4D - AttrAllocated Attr = 0x4E - AttrAssociated Attr = 0x4F - AttrDataLocation Attr = 0x50 - AttrStride Attr = 0x51 - AttrEntrypc Attr = 0x52 - AttrUseUTF8 Attr = 0x53 - AttrExtension Attr = 0x54 - AttrRanges Attr = 0x55 - AttrTrampoline Attr = 0x56 - AttrCallColumn Attr = 0x57 - AttrCallFile Attr = 0x58 - AttrCallLine Attr = 0x59 - AttrDescription Attr = 0x5A -) - -var attrNames = [...]string{ - AttrSibling: "Sibling", - AttrLocation: "Location", - AttrName: "Name", - AttrOrdering: "Ordering", - AttrByteSize: "ByteSize", - AttrBitOffset: "BitOffset", - AttrBitSize: "BitSize", - AttrStmtList: "StmtList", - AttrLowpc: "Lowpc", - AttrHighpc: "Highpc", - AttrLanguage: "Language", - AttrDiscr: "Discr", - AttrDiscrValue: "DiscrValue", - AttrVisibility: "Visibility", - AttrImport: "Import", - AttrStringLength: "StringLength", - AttrCommonRef: "CommonRef", - AttrCompDir: "CompDir", - AttrConstValue: "ConstValue", - AttrContainingType: "ContainingType", - AttrDefaultValue: "DefaultValue", - AttrInline: "Inline", - AttrIsOptional: "IsOptional", - AttrLowerBound: "LowerBound", - AttrProducer: "Producer", - AttrPrototyped: "Prototyped", - AttrReturnAddr: "ReturnAddr", - AttrStartScope: "StartScope", - AttrStrideSize: "StrideSize", - AttrUpperBound: "UpperBound", - AttrAbstractOrigin: "AbstractOrigin", - AttrAccessibility: "Accessibility", - AttrAddrClass: "AddrClass", - AttrArtificial: "Artificial", - AttrBaseTypes: "BaseTypes", - AttrCalling: "Calling", - AttrCount: "Count", - AttrDataMemberLoc: "DataMemberLoc", - AttrDeclColumn: "DeclColumn", - AttrDeclFile: "DeclFile", - AttrDeclLine: "DeclLine", - AttrDeclaration: "Declaration", - AttrDiscrList: "DiscrList", - AttrEncoding: "Encoding", - AttrExternal: "External", - AttrFrameBase: "FrameBase", - AttrFriend: "Friend", - AttrIdentifierCase: "IdentifierCase", - AttrMacroInfo: "MacroInfo", - AttrNamelistItem: "NamelistItem", - AttrPriority: "Priority", - AttrSegment: "Segment", - AttrSpecification: "Specification", - AttrStaticLink: "StaticLink", - AttrType: "Type", - AttrUseLocation: "UseLocation", - AttrVarParam: "VarParam", - AttrVirtuality: "Virtuality", - AttrVtableElemLoc: "VtableElemLoc", - AttrAllocated: "Allocated", - AttrAssociated: "Associated", - AttrDataLocation: "DataLocation", - AttrStride: "Stride", - AttrEntrypc: "Entrypc", - AttrUseUTF8: "UseUTF8", - AttrExtension: "Extension", - AttrRanges: "Ranges", - AttrTrampoline: "Trampoline", - AttrCallColumn: "CallColumn", - AttrCallFile: "CallFile", - AttrCallLine: "CallLine", - AttrDescription: "Description", -} - -func (a Attr) String() string { - if int(a) < len(attrNames) { - s := attrNames[a] - if s != "" { - return s - } - } - return strconv.Itoa(int(a)) -} - -func (a Attr) GoString() string { - if int(a) < len(attrNames) { - s := attrNames[a] - if s != "" { - return "dwarf.Attr" + s - } - } - return "dwarf.Attr(" + strconv.FormatInt(int64(a), 10) + ")" -} - -// A format is a DWARF data encoding format. -type format uint32 - -const ( - // value formats - formAddr format = 0x01 - formDwarfBlock2 format = 0x03 - formDwarfBlock4 format = 0x04 - formData2 format = 0x05 - formData4 format = 0x06 - formData8 format = 0x07 - formString format = 0x08 - formDwarfBlock format = 0x09 - formDwarfBlock1 format = 0x0A - formData1 format = 0x0B - formFlag format = 0x0C - formSdata format = 0x0D - formStrp format = 0x0E - formUdata format = 0x0F - formRefAddr format = 0x10 - formRef1 format = 0x11 - formRef2 format = 0x12 - formRef4 format = 0x13 - formRef8 format = 0x14 - formRefUdata format = 0x15 - formIndirect format = 0x16 - // The following are new in DWARF 4. - formSecOffset format = 0x17 - formExprloc format = 0x18 - formFlagPresent format = 0x19 - formRefSig8 format = 0x20 - // Extensions for multi-file compression (.dwz) - // http://www.dwarfstd.org/ShowIssue.php?issue=120604.1 - formGnuRefAlt format = 0x1f20 - formGnuStrpAlt format = 0x1f21 -) - -// A Tag is the classification (the type) of an Entry. -type Tag uint32 - -const ( - TagArrayType Tag = 0x01 - TagClassType Tag = 0x02 - TagEntryPoint Tag = 0x03 - TagEnumerationType Tag = 0x04 - TagFormalParameter Tag = 0x05 - TagImportedDeclaration Tag = 0x08 - TagLabel Tag = 0x0A - TagLexDwarfBlock Tag = 0x0B - TagMember Tag = 0x0D - TagPointerType Tag = 0x0F - TagReferenceType Tag = 0x10 - TagCompileUnit Tag = 0x11 - TagStringType Tag = 0x12 - TagStructType Tag = 0x13 - TagSubroutineType Tag = 0x15 - TagTypedef Tag = 0x16 - TagUnionType Tag = 0x17 - TagUnspecifiedParameters Tag = 0x18 - TagVariant Tag = 0x19 - TagCommonDwarfBlock Tag = 0x1A - TagCommonInclusion Tag = 0x1B - TagInheritance Tag = 0x1C - TagInlinedSubroutine Tag = 0x1D - TagModule Tag = 0x1E - TagPtrToMemberType Tag = 0x1F - TagSetType Tag = 0x20 - TagSubrangeType Tag = 0x21 - TagWithStmt Tag = 0x22 - TagAccessDeclaration Tag = 0x23 - TagBaseType Tag = 0x24 - TagCatchDwarfBlock Tag = 0x25 - TagConstType Tag = 0x26 - TagConstant Tag = 0x27 - TagEnumerator Tag = 0x28 - TagFileType Tag = 0x29 - TagFriend Tag = 0x2A - TagNamelist Tag = 0x2B - TagNamelistItem Tag = 0x2C - TagPackedType Tag = 0x2D - TagSubprogram Tag = 0x2E - TagTemplateTypeParameter Tag = 0x2F - TagTemplateValueParameter Tag = 0x30 - TagThrownType Tag = 0x31 - TagTryDwarfBlock Tag = 0x32 - TagVariantPart Tag = 0x33 - TagVariable Tag = 0x34 - TagVolatileType Tag = 0x35 - // The following are new in DWARF 3. - TagDwarfProcedure Tag = 0x36 - TagRestrictType Tag = 0x37 - TagInterfaceType Tag = 0x38 - TagNamespace Tag = 0x39 - TagImportedModule Tag = 0x3A - TagUnspecifiedType Tag = 0x3B - TagPartialUnit Tag = 0x3C - TagImportedUnit Tag = 0x3D - TagMutableType Tag = 0x3E // Later removed from DWARF. - TagCondition Tag = 0x3F - TagSharedType Tag = 0x40 - // The following are new in DWARF 4. - TagTypeUnit Tag = 0x41 - TagRvalueReferenceType Tag = 0x42 - TagTemplateAlias Tag = 0x43 -) - -var tagNames = [...]string{ - TagArrayType: "ArrayType", - TagClassType: "ClassType", - TagEntryPoint: "EntryPoint", - TagEnumerationType: "EnumerationType", - TagFormalParameter: "FormalParameter", - TagImportedDeclaration: "ImportedDeclaration", - TagLabel: "Label", - TagLexDwarfBlock: "LexDwarfBlock", - TagMember: "Member", - TagPointerType: "PointerType", - TagReferenceType: "ReferenceType", - TagCompileUnit: "CompileUnit", - TagStringType: "StringType", - TagStructType: "StructType", - TagSubroutineType: "SubroutineType", - TagTypedef: "Typedef", - TagUnionType: "UnionType", - TagUnspecifiedParameters: "UnspecifiedParameters", - TagVariant: "Variant", - TagCommonDwarfBlock: "CommonDwarfBlock", - TagCommonInclusion: "CommonInclusion", - TagInheritance: "Inheritance", - TagInlinedSubroutine: "InlinedSubroutine", - TagModule: "Module", - TagPtrToMemberType: "PtrToMemberType", - TagSetType: "SetType", - TagSubrangeType: "SubrangeType", - TagWithStmt: "WithStmt", - TagAccessDeclaration: "AccessDeclaration", - TagBaseType: "BaseType", - TagCatchDwarfBlock: "CatchDwarfBlock", - TagConstType: "ConstType", - TagConstant: "Constant", - TagEnumerator: "Enumerator", - TagFileType: "FileType", - TagFriend: "Friend", - TagNamelist: "Namelist", - TagNamelistItem: "NamelistItem", - TagPackedType: "PackedType", - TagSubprogram: "Subprogram", - TagTemplateTypeParameter: "TemplateTypeParameter", - TagTemplateValueParameter: "TemplateValueParameter", - TagThrownType: "ThrownType", - TagTryDwarfBlock: "TryDwarfBlock", - TagVariantPart: "VariantPart", - TagVariable: "Variable", - TagVolatileType: "VolatileType", - TagDwarfProcedure: "DwarfProcedure", - TagRestrictType: "RestrictType", - TagInterfaceType: "InterfaceType", - TagNamespace: "Namespace", - TagImportedModule: "ImportedModule", - TagUnspecifiedType: "UnspecifiedType", - TagPartialUnit: "PartialUnit", - TagImportedUnit: "ImportedUnit", - TagMutableType: "MutableType", - TagCondition: "Condition", - TagSharedType: "SharedType", - TagTypeUnit: "TypeUnit", - TagRvalueReferenceType: "RvalueReferenceType", - TagTemplateAlias: "TemplateAlias", -} - -func (t Tag) String() string { - if int(t) < len(tagNames) { - s := tagNames[t] - if s != "" { - return s - } - } - return strconv.Itoa(int(t)) -} - -func (t Tag) GoString() string { - if int(t) < len(tagNames) { - s := tagNames[t] - if s != "" { - return "dwarf.Tag" + s - } - } - return "dwarf.Tag(" + strconv.FormatInt(int64(t), 10) + ")" -} - -// Location expression operators. -// The debug info encodes value locations like 8(R3) -// as a sequence of these op codes. -// This package does not implement full expressions; -// the opPlusUconst operator is expected by the type parser. -const ( - opAddr = 0x03 /* 1 op, const addr */ - opDeref = 0x06 - opConst1u = 0x08 /* 1 op, 1 byte const */ - opConst1s = 0x09 /* " signed */ - opConst2u = 0x0A /* 1 op, 2 byte const */ - opConst2s = 0x0B /* " signed */ - opConst4u = 0x0C /* 1 op, 4 byte const */ - opConst4s = 0x0D /* " signed */ - opConst8u = 0x0E /* 1 op, 8 byte const */ - opConst8s = 0x0F /* " signed */ - opConstu = 0x10 /* 1 op, LEB128 const */ - opConsts = 0x11 /* " signed */ - opDup = 0x12 - opDrop = 0x13 - opOver = 0x14 - opPick = 0x15 /* 1 op, 1 byte stack index */ - opSwap = 0x16 - opRot = 0x17 - opXderef = 0x18 - opAbs = 0x19 - opAnd = 0x1A - opDiv = 0x1B - opMinus = 0x1C - opMod = 0x1D - opMul = 0x1E - opNeg = 0x1F - opNot = 0x20 - opOr = 0x21 - opPlus = 0x22 - opPlusUconst = 0x23 /* 1 op, ULEB128 addend */ - opShl = 0x24 - opShr = 0x25 - opShra = 0x26 - opXor = 0x27 - opSkip = 0x2F /* 1 op, signed 2-byte constant */ - opBra = 0x28 /* 1 op, signed 2-byte constant */ - opEq = 0x29 - opGe = 0x2A - opGt = 0x2B - opLe = 0x2C - opLt = 0x2D - opNe = 0x2E - opLit0 = 0x30 - /* OpLitN = OpLit0 + N for N = 0..31 */ - opReg0 = 0x50 - /* OpRegN = OpReg0 + N for N = 0..31 */ - opBreg0 = 0x70 /* 1 op, signed LEB128 constant */ - /* OpBregN = OpBreg0 + N for N = 0..31 */ - opRegx = 0x90 /* 1 op, ULEB128 register */ - opFbreg = 0x91 /* 1 op, SLEB128 offset */ - opBregx = 0x92 /* 2 op, ULEB128 reg; SLEB128 off */ - opPiece = 0x93 /* 1 op, ULEB128 size of piece */ - opDerefSize = 0x94 /* 1-byte size of data retrieved */ - opXderefSize = 0x95 /* 1-byte size of data retrieved */ - opNop = 0x96 - /* next four new in Dwarf v3 */ - opPushObjAddr = 0x97 - opCall2 = 0x98 /* 2-byte offset of DIE */ - opCall4 = 0x99 /* 4-byte offset of DIE */ - opCallRef = 0x9A /* 4- or 8- byte offset of DIE */ - /* 0xE0-0xFF reserved for user-specific */ -) - -// Basic type encodings -- the value for AttrEncoding in a TagBaseType Entry. -const ( - encAddress = 0x01 - encBoolean = 0x02 - encComplexFloat = 0x03 - encFloat = 0x04 - encSigned = 0x05 - encSignedChar = 0x06 - encUnsigned = 0x07 - encUnsignedChar = 0x08 - encImaginaryFloat = 0x09 -) diff --git a/src/pkg/debug/dwarf/entry.go b/src/pkg/debug/dwarf/entry.go deleted file mode 100644 index 665c6840d..000000000 --- a/src/pkg/debug/dwarf/entry.go +++ /dev/null @@ -1,401 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// DWARF debug information entry parser. -// An entry is a sequence of data items of a given format. -// The first word in the entry is an index into what DWARF -// calls the ``abbreviation table.'' An abbreviation is really -// just a type descriptor: it's an array of attribute tag/value format pairs. - -package dwarf - -import ( - "errors" - "strconv" -) - -// a single entry's description: a sequence of attributes -type abbrev struct { - tag Tag - children bool - field []afield -} - -type afield struct { - attr Attr - fmt format -} - -// a map from entry format ids to their descriptions -type abbrevTable map[uint32]abbrev - -// ParseAbbrev returns the abbreviation table that starts at byte off -// in the .debug_abbrev section. -func (d *Data) parseAbbrev(off uint32) (abbrevTable, error) { - if m, ok := d.abbrevCache[off]; ok { - return m, nil - } - - data := d.abbrev - if off > uint32(len(data)) { - data = nil - } else { - data = data[off:] - } - b := makeBuf(d, unknownFormat{}, "abbrev", 0, data) - - // Error handling is simplified by the buf getters - // returning an endless stream of 0s after an error. - m := make(abbrevTable) - for { - // Table ends with id == 0. - id := uint32(b.uint()) - if id == 0 { - break - } - - // Walk over attributes, counting. - n := 0 - b1 := b // Read from copy of b. - b1.uint() - b1.uint8() - for { - tag := b1.uint() - fmt := b1.uint() - if tag == 0 && fmt == 0 { - break - } - n++ - } - if b1.err != nil { - return nil, b1.err - } - - // Walk over attributes again, this time writing them down. - var a abbrev - a.tag = Tag(b.uint()) - a.children = b.uint8() != 0 - a.field = make([]afield, n) - for i := range a.field { - a.field[i].attr = Attr(b.uint()) - a.field[i].fmt = format(b.uint()) - } - b.uint() - b.uint() - - m[id] = a - } - if b.err != nil { - return nil, b.err - } - d.abbrevCache[off] = m - return m, nil -} - -// An entry is a sequence of attribute/value pairs. -type Entry struct { - Offset Offset // offset of Entry in DWARF info - Tag Tag // tag (kind of Entry) - Children bool // whether Entry is followed by children - Field []Field -} - -// A Field is a single attribute/value pair in an Entry. -type Field struct { - Attr Attr - Val interface{} -} - -// Val returns the value associated with attribute Attr in Entry, -// or nil if there is no such attribute. -// -// A common idiom is to merge the check for nil return with -// the check that the value has the expected dynamic type, as in: -// v, ok := e.Val(AttrSibling).(int64); -// -func (e *Entry) Val(a Attr) interface{} { - for _, f := range e.Field { - if f.Attr == a { - return f.Val - } - } - return nil -} - -// An Offset represents the location of an Entry within the DWARF info. -// (See Reader.Seek.) -type Offset uint32 - -// Entry reads a single entry from buf, decoding -// according to the given abbreviation table. -func (b *buf) entry(atab abbrevTable, ubase Offset) *Entry { - off := b.off - id := uint32(b.uint()) - if id == 0 { - return &Entry{} - } - a, ok := atab[id] - if !ok { - b.error("unknown abbreviation table index") - return nil - } - e := &Entry{ - Offset: off, - Tag: a.tag, - Children: a.children, - Field: make([]Field, len(a.field)), - } - for i := range e.Field { - e.Field[i].Attr = a.field[i].attr - fmt := a.field[i].fmt - if fmt == formIndirect { - fmt = format(b.uint()) - } - var val interface{} - switch fmt { - default: - b.error("unknown entry attr format 0x" + strconv.FormatInt(int64(fmt), 16)) - - // address - case formAddr: - val = b.addr() - - // block - case formDwarfBlock1: - val = b.bytes(int(b.uint8())) - case formDwarfBlock2: - val = b.bytes(int(b.uint16())) - case formDwarfBlock4: - val = b.bytes(int(b.uint32())) - case formDwarfBlock: - val = b.bytes(int(b.uint())) - - // constant - case formData1: - val = int64(b.uint8()) - case formData2: - val = int64(b.uint16()) - case formData4: - val = int64(b.uint32()) - case formData8: - val = int64(b.uint64()) - case formSdata: - val = int64(b.int()) - case formUdata: - val = int64(b.uint()) - - // flag - case formFlag: - val = b.uint8() == 1 - // New in DWARF 4. - case formFlagPresent: - // The attribute is implicitly indicated as present, and no value is - // encoded in the debugging information entry itself. - val = true - - // reference to other entry - case formRefAddr: - vers := b.format.version() - if vers == 0 { - b.error("unknown version for DW_FORM_ref_addr") - } else if vers == 2 { - val = Offset(b.addr()) - } else { - is64, known := b.format.dwarf64() - if !known { - b.error("unknown size for DW_FORM_ref_addr") - } else if is64 { - val = Offset(b.uint64()) - } else { - val = Offset(b.uint32()) - } - } - case formRef1: - val = Offset(b.uint8()) + ubase - case formRef2: - val = Offset(b.uint16()) + ubase - case formRef4: - val = Offset(b.uint32()) + ubase - case formRef8: - val = Offset(b.uint64()) + ubase - case formRefUdata: - val = Offset(b.uint()) + ubase - - // string - case formString: - val = b.string() - case formStrp: - off := b.uint32() // offset into .debug_str - if b.err != nil { - return nil - } - b1 := makeBuf(b.dwarf, unknownFormat{}, "str", 0, b.dwarf.str) - b1.skip(int(off)) - val = b1.string() - if b1.err != nil { - b.err = b1.err - return nil - } - - // lineptr, loclistptr, macptr, rangelistptr - // New in DWARF 4, but clang can generate them with -gdwarf-2. - // Section reference, replacing use of formData4 and formData8. - case formSecOffset, formGnuRefAlt, formGnuStrpAlt: - is64, known := b.format.dwarf64() - if !known { - b.error("unknown size for form 0x" + strconv.FormatInt(int64(fmt), 16)) - } else if is64 { - val = int64(b.uint64()) - } else { - val = int64(b.uint32()) - } - - // exprloc - // New in DWARF 4. - case formExprloc: - val = b.bytes(int(b.uint())) - - // reference - // New in DWARF 4. - case formRefSig8: - // 64-bit type signature. - val = b.uint64() - } - e.Field[i].Val = val - } - if b.err != nil { - return nil - } - return e -} - -// A Reader allows reading Entry structures from a DWARF ``info'' section. -// The Entry structures are arranged in a tree. The Reader's Next function -// return successive entries from a pre-order traversal of the tree. -// If an entry has children, its Children field will be true, and the children -// follow, terminated by an Entry with Tag 0. -type Reader struct { - b buf - d *Data - err error - unit int - lastChildren bool // .Children of last entry returned by Next - lastSibling Offset // .Val(AttrSibling) of last entry returned by Next -} - -// Reader returns a new Reader for Data. -// The reader is positioned at byte offset 0 in the DWARF ``info'' section. -func (d *Data) Reader() *Reader { - r := &Reader{d: d} - r.Seek(0) - return r -} - -// Seek positions the Reader at offset off in the encoded entry stream. -// Offset 0 can be used to denote the first entry. -func (r *Reader) Seek(off Offset) { - d := r.d - r.err = nil - r.lastChildren = false - if off == 0 { - if len(d.unit) == 0 { - return - } - u := &d.unit[0] - r.unit = 0 - r.b = makeBuf(r.d, u, "info", u.off, u.data) - return - } - - // TODO(rsc): binary search (maybe a new package) - var i int - var u *unit - for i = range d.unit { - u = &d.unit[i] - if u.off <= off && off < u.off+Offset(len(u.data)) { - r.unit = i - r.b = makeBuf(r.d, u, "info", off, u.data[off-u.off:]) - return - } - } - r.err = errors.New("offset out of range") -} - -// maybeNextUnit advances to the next unit if this one is finished. -func (r *Reader) maybeNextUnit() { - for len(r.b.data) == 0 && r.unit+1 < len(r.d.unit) { - r.unit++ - u := &r.d.unit[r.unit] - r.b = makeBuf(r.d, u, "info", u.off, u.data) - } -} - -// Next reads the next entry from the encoded entry stream. -// It returns nil, nil when it reaches the end of the section. -// It returns an error if the current offset is invalid or the data at the -// offset cannot be decoded as a valid Entry. -func (r *Reader) Next() (*Entry, error) { - if r.err != nil { - return nil, r.err - } - r.maybeNextUnit() - if len(r.b.data) == 0 { - return nil, nil - } - u := &r.d.unit[r.unit] - e := r.b.entry(u.atable, u.base) - if r.b.err != nil { - r.err = r.b.err - return nil, r.err - } - if e != nil { - r.lastChildren = e.Children - if r.lastChildren { - r.lastSibling, _ = e.Val(AttrSibling).(Offset) - } - } else { - r.lastChildren = false - } - return e, nil -} - -// SkipChildren skips over the child entries associated with -// the last Entry returned by Next. If that Entry did not have -// children or Next has not been called, SkipChildren is a no-op. -func (r *Reader) SkipChildren() { - if r.err != nil || !r.lastChildren { - return - } - - // If the last entry had a sibling attribute, - // that attribute gives the offset of the next - // sibling, so we can avoid decoding the - // child subtrees. - if r.lastSibling >= r.b.off { - r.Seek(r.lastSibling) - return - } - - for { - e, err := r.Next() - if err != nil || e == nil || e.Tag == 0 { - break - } - if e.Children { - r.SkipChildren() - } - } -} - -// clone returns a copy of the reader. This is used by the typeReader -// interface. -func (r *Reader) clone() typeReader { - return r.d.Reader() -} - -// offset returns the current buffer offset. This is used by the -// typeReader interface. -func (r *Reader) offset() Offset { - return r.b.off -} diff --git a/src/pkg/debug/dwarf/open.go b/src/pkg/debug/dwarf/open.go deleted file mode 100644 index c1b3f37ac..000000000 --- a/src/pkg/debug/dwarf/open.go +++ /dev/null @@ -1,87 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package dwarf provides access to DWARF debugging information loaded from -// executable files, as defined in the DWARF 2.0 Standard at -// http://dwarfstd.org/doc/dwarf-2.0.0.pdf -package dwarf - -import "encoding/binary" - -// Data represents the DWARF debugging information -// loaded from an executable file (for example, an ELF or Mach-O executable). -type Data struct { - // raw data - abbrev []byte - aranges []byte - frame []byte - info []byte - line []byte - pubnames []byte - ranges []byte - str []byte - - // parsed data - abbrevCache map[uint32]abbrevTable - order binary.ByteOrder - typeCache map[Offset]Type - typeSigs map[uint64]*typeUnit - unit []unit -} - -// New returns a new Data object initialized from the given parameters. -// Rather than calling this function directly, clients should typically use -// the DWARF method of the File type of the appropriate package debug/elf, -// debug/macho, or debug/pe. -// -// The []byte arguments are the data from the corresponding debug section -// in the object file; for example, for an ELF object, abbrev is the contents of -// the ".debug_abbrev" section. -func New(abbrev, aranges, frame, info, line, pubnames, ranges, str []byte) (*Data, error) { - d := &Data{ - abbrev: abbrev, - aranges: aranges, - frame: frame, - info: info, - line: line, - pubnames: pubnames, - ranges: ranges, - str: str, - abbrevCache: make(map[uint32]abbrevTable), - typeCache: make(map[Offset]Type), - typeSigs: make(map[uint64]*typeUnit), - } - - // Sniff .debug_info to figure out byte order. - // bytes 4:6 are the version, a tiny 16-bit number (1, 2, 3). - if len(d.info) < 6 { - return nil, DecodeError{"info", Offset(len(d.info)), "too short"} - } - x, y := d.info[4], d.info[5] - switch { - case x == 0 && y == 0: - return nil, DecodeError{"info", 4, "unsupported version 0"} - case x == 0: - d.order = binary.BigEndian - case y == 0: - d.order = binary.LittleEndian - default: - return nil, DecodeError{"info", 4, "cannot determine byte order"} - } - - u, err := d.parseUnits() - if err != nil { - return nil, err - } - d.unit = u - return d, nil -} - -// AddTypes will add one .debug_types section to the DWARF data. A -// typical object with DWARF version 4 debug info will have multiple -// .debug_types sections. The name is used for error reporting only, -// and serves to distinguish one .debug_types section from another. -func (d *Data) AddTypes(name string, types []byte) error { - return d.parseTypes(name, types) -} diff --git a/src/pkg/debug/dwarf/testdata/typedef.c b/src/pkg/debug/dwarf/testdata/typedef.c deleted file mode 100644 index f05f01564..000000000 --- a/src/pkg/debug/dwarf/testdata/typedef.c +++ /dev/null @@ -1,85 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -/* -Linux ELF: -gcc -gdwarf-2 -m64 -c typedef.c && gcc -gdwarf-2 -m64 -o typedef.elf typedef.o - -OS X Mach-O: -gcc -gdwarf-2 -m64 -c typedef.c -o typedef.macho -*/ -#include <complex.h> - -typedef volatile int* t_ptr_volatile_int; -typedef const char *t_ptr_const_char; -typedef long t_long; -typedef unsigned short t_ushort; -typedef int t_func_int_of_float_double(float, double); -typedef int (*t_ptr_func_int_of_float_double)(float, double); -typedef int (*t_ptr_func_int_of_float_complex)(float complex); -typedef int (*t_ptr_func_int_of_double_complex)(double complex); -typedef int (*t_ptr_func_int_of_long_double_complex)(long double complex); -typedef int *t_func_ptr_int_of_char_schar_uchar(char, signed char, unsigned char); -typedef void t_func_void_of_char(char); -typedef void t_func_void_of_void(void); -typedef void t_func_void_of_ptr_char_dots(char*, ...); -typedef struct my_struct { - volatile int vi; - char x : 1; - int y : 4; - int z[0]; - long long array[40]; - int zz[0]; -} t_my_struct; -typedef struct my_struct1 { - int zz [1]; -} t_my_struct1; -typedef union my_union { - volatile int vi; - char x : 1; - int y : 4; - long long array[40]; -} t_my_union; -typedef enum my_enum { - e1 = 1, - e2 = 2, - e3 = -5, - e4 = 1000000000000000LL, -} t_my_enum; - -typedef struct list t_my_list; -struct list { - short val; - t_my_list *next; -}; - -typedef struct tree { - struct tree *left, *right; - unsigned long long val; -} t_my_tree; - -t_ptr_volatile_int *a2; -t_ptr_const_char **a3a; -t_long *a4; -t_ushort *a5; -t_func_int_of_float_double *a6; -t_ptr_func_int_of_float_double *a7; -t_func_ptr_int_of_char_schar_uchar *a8; -t_func_void_of_char *a9; -t_func_void_of_void *a10; -t_func_void_of_ptr_char_dots *a11; -t_my_struct *a12; -t_my_struct1 *a12a; -t_my_union *a12b; -t_my_enum *a13; -t_my_list *a14; -t_my_tree *a15; -t_ptr_func_int_of_float_complex *a16; -t_ptr_func_int_of_double_complex *a17; -t_ptr_func_int_of_long_double_complex *a18; - -int main() -{ - return 0; -} diff --git a/src/pkg/debug/dwarf/testdata/typedef.elf b/src/pkg/debug/dwarf/testdata/typedef.elf Binary files differdeleted file mode 100755 index b2062d2c4..000000000 --- a/src/pkg/debug/dwarf/testdata/typedef.elf +++ /dev/null diff --git a/src/pkg/debug/dwarf/testdata/typedef.elf4 b/src/pkg/debug/dwarf/testdata/typedef.elf4 Binary files differdeleted file mode 100644 index 3d5a5a1b1..000000000 --- a/src/pkg/debug/dwarf/testdata/typedef.elf4 +++ /dev/null diff --git a/src/pkg/debug/dwarf/testdata/typedef.macho b/src/pkg/debug/dwarf/testdata/typedef.macho Binary files differdeleted file mode 100644 index f75afcccb..000000000 --- a/src/pkg/debug/dwarf/testdata/typedef.macho +++ /dev/null diff --git a/src/pkg/debug/dwarf/type.go b/src/pkg/debug/dwarf/type.go deleted file mode 100644 index 68866d0b7..000000000 --- a/src/pkg/debug/dwarf/type.go +++ /dev/null @@ -1,659 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// DWARF type information structures. -// The format is heavily biased toward C, but for simplicity -// the String methods use a pseudo-Go syntax. - -package dwarf - -import "strconv" - -// A Type conventionally represents a pointer to any of the -// specific Type structures (CharType, StructType, etc.). -type Type interface { - Common() *CommonType - String() string - Size() int64 -} - -// A CommonType holds fields common to multiple types. -// If a field is not known or not applicable for a given type, -// the zero value is used. -type CommonType struct { - ByteSize int64 // size of value of this type, in bytes - Name string // name that can be used to refer to type -} - -func (c *CommonType) Common() *CommonType { return c } - -func (c *CommonType) Size() int64 { return c.ByteSize } - -// Basic types - -// A BasicType holds fields common to all basic types. -type BasicType struct { - CommonType - BitSize int64 - BitOffset int64 -} - -func (b *BasicType) Basic() *BasicType { return b } - -func (t *BasicType) String() string { - if t.Name != "" { - return t.Name - } - return "?" -} - -// A CharType represents a signed character type. -type CharType struct { - BasicType -} - -// A UcharType represents an unsigned character type. -type UcharType struct { - BasicType -} - -// An IntType represents a signed integer type. -type IntType struct { - BasicType -} - -// A UintType represents an unsigned integer type. -type UintType struct { - BasicType -} - -// A FloatType represents a floating point type. -type FloatType struct { - BasicType -} - -// A ComplexType represents a complex floating point type. -type ComplexType struct { - BasicType -} - -// A BoolType represents a boolean type. -type BoolType struct { - BasicType -} - -// An AddrType represents a machine address type. -type AddrType struct { - BasicType -} - -// qualifiers - -// A QualType represents a type that has the C/C++ "const", "restrict", or "volatile" qualifier. -type QualType struct { - CommonType - Qual string - Type Type -} - -func (t *QualType) String() string { return t.Qual + " " + t.Type.String() } - -func (t *QualType) Size() int64 { return t.Type.Size() } - -// An ArrayType represents a fixed size array type. -type ArrayType struct { - CommonType - Type Type - StrideBitSize int64 // if > 0, number of bits to hold each element - Count int64 // if == -1, an incomplete array, like char x[]. -} - -func (t *ArrayType) String() string { - return "[" + strconv.FormatInt(t.Count, 10) + "]" + t.Type.String() -} - -func (t *ArrayType) Size() int64 { return t.Count * t.Type.Size() } - -// A VoidType represents the C void type. -type VoidType struct { - CommonType -} - -func (t *VoidType) String() string { return "void" } - -// A PtrType represents a pointer type. -type PtrType struct { - CommonType - Type Type -} - -func (t *PtrType) String() string { return "*" + t.Type.String() } - -// A StructType represents a struct, union, or C++ class type. -type StructType struct { - CommonType - StructName string - Kind string // "struct", "union", or "class". - Field []*StructField - Incomplete bool // if true, struct, union, class is declared but not defined -} - -// A StructField represents a field in a struct, union, or C++ class type. -type StructField struct { - Name string - Type Type - ByteOffset int64 - ByteSize int64 - BitOffset int64 // within the ByteSize bytes at ByteOffset - BitSize int64 // zero if not a bit field -} - -func (t *StructType) String() string { - if t.StructName != "" { - return t.Kind + " " + t.StructName - } - return t.Defn() -} - -func (t *StructType) Defn() string { - s := t.Kind - if t.StructName != "" { - s += " " + t.StructName - } - if t.Incomplete { - s += " /*incomplete*/" - return s - } - s += " {" - for i, f := range t.Field { - if i > 0 { - s += "; " - } - s += f.Name + " " + f.Type.String() - s += "@" + strconv.FormatInt(f.ByteOffset, 10) - if f.BitSize > 0 { - s += " : " + strconv.FormatInt(f.BitSize, 10) - s += "@" + strconv.FormatInt(f.BitOffset, 10) - } - } - s += "}" - return s -} - -// An EnumType represents an enumerated type. -// The only indication of its native integer type is its ByteSize -// (inside CommonType). -type EnumType struct { - CommonType - EnumName string - Val []*EnumValue -} - -// An EnumValue represents a single enumeration value. -type EnumValue struct { - Name string - Val int64 -} - -func (t *EnumType) String() string { - s := "enum" - if t.EnumName != "" { - s += " " + t.EnumName - } - s += " {" - for i, v := range t.Val { - if i > 0 { - s += "; " - } - s += v.Name + "=" + strconv.FormatInt(v.Val, 10) - } - s += "}" - return s -} - -// A FuncType represents a function type. -type FuncType struct { - CommonType - ReturnType Type - ParamType []Type -} - -func (t *FuncType) String() string { - s := "func(" - for i, t := range t.ParamType { - if i > 0 { - s += ", " - } - s += t.String() - } - s += ")" - if t.ReturnType != nil { - s += " " + t.ReturnType.String() - } - return s -} - -// A DotDotDotType represents the variadic ... function parameter. -type DotDotDotType struct { - CommonType -} - -func (t *DotDotDotType) String() string { return "..." } - -// A TypedefType represents a named type. -type TypedefType struct { - CommonType - Type Type -} - -func (t *TypedefType) String() string { return t.Name } - -func (t *TypedefType) Size() int64 { return t.Type.Size() } - -// typeReader is used to read from either the info section or the -// types section. -type typeReader interface { - Seek(Offset) - Next() (*Entry, error) - clone() typeReader - offset() Offset -} - -// Type reads the type at off in the DWARF ``info'' section. -func (d *Data) Type(off Offset) (Type, error) { - return d.readType("info", d.Reader(), off, d.typeCache) -} - -// readType reads a type from r at off of name using and updating a -// type cache. -func (d *Data) readType(name string, r typeReader, off Offset, typeCache map[Offset]Type) (Type, error) { - if t, ok := typeCache[off]; ok { - return t, nil - } - r.Seek(off) - e, err := r.Next() - if err != nil { - return nil, err - } - if e == nil || e.Offset != off { - return nil, DecodeError{name, off, "no type at offset"} - } - - // Parse type from Entry. - // Must always set typeCache[off] before calling - // d.Type recursively, to handle circular types correctly. - var typ Type - - nextDepth := 0 - - // Get next child; set err if error happens. - next := func() *Entry { - if !e.Children { - return nil - } - // Only return direct children. - // Skip over composite entries that happen to be nested - // inside this one. Most DWARF generators wouldn't generate - // such a thing, but clang does. - // See golang.org/issue/6472. - for { - kid, err1 := r.Next() - if err1 != nil { - err = err1 - return nil - } - if kid == nil { - err = DecodeError{name, r.offset(), "unexpected end of DWARF entries"} - return nil - } - if kid.Tag == 0 { - if nextDepth > 0 { - nextDepth-- - continue - } - return nil - } - if kid.Children { - nextDepth++ - } - if nextDepth > 0 { - continue - } - return kid - } - } - - // Get Type referred to by Entry's AttrType field. - // Set err if error happens. Not having a type is an error. - typeOf := func(e *Entry) Type { - tval := e.Val(AttrType) - var t Type - switch toff := tval.(type) { - case Offset: - if t, err = d.readType(name, r.clone(), toff, typeCache); err != nil { - return nil - } - case uint64: - if t, err = d.sigToType(toff); err != nil { - return nil - } - default: - // It appears that no Type means "void". - return new(VoidType) - } - return t - } - - switch e.Tag { - case TagArrayType: - // Multi-dimensional array. (DWARF v2 §5.4) - // Attributes: - // AttrType:subtype [required] - // AttrStrideSize: size in bits of each element of the array - // AttrByteSize: size of entire array - // Children: - // TagSubrangeType or TagEnumerationType giving one dimension. - // dimensions are in left to right order. - t := new(ArrayType) - typ = t - typeCache[off] = t - if t.Type = typeOf(e); err != nil { - goto Error - } - t.StrideBitSize, _ = e.Val(AttrStrideSize).(int64) - - // Accumulate dimensions, - ndim := 0 - for kid := next(); kid != nil; kid = next() { - // TODO(rsc): Can also be TagEnumerationType - // but haven't seen that in the wild yet. - switch kid.Tag { - case TagSubrangeType: - max, ok := kid.Val(AttrUpperBound).(int64) - if !ok { - max = -2 // Count == -1, as in x[]. - } - if ndim == 0 { - t.Count = max + 1 - } else { - // Multidimensional array. - // Create new array type underneath this one. - t.Type = &ArrayType{Type: t.Type, Count: max + 1} - } - ndim++ - case TagEnumerationType: - err = DecodeError{name, kid.Offset, "cannot handle enumeration type as array bound"} - goto Error - } - } - if ndim == 0 { - // LLVM generates this for x[]. - t.Count = -1 - } - - case TagBaseType: - // Basic type. (DWARF v2 §5.1) - // Attributes: - // AttrName: name of base type in programming language of the compilation unit [required] - // AttrEncoding: encoding value for type (encFloat etc) [required] - // AttrByteSize: size of type in bytes [required] - // AttrBitOffset: for sub-byte types, size in bits - // AttrBitSize: for sub-byte types, bit offset of high order bit in the AttrByteSize bytes - name, _ := e.Val(AttrName).(string) - enc, ok := e.Val(AttrEncoding).(int64) - if !ok { - err = DecodeError{name, e.Offset, "missing encoding attribute for " + name} - goto Error - } - switch enc { - default: - err = DecodeError{name, e.Offset, "unrecognized encoding attribute value"} - goto Error - - case encAddress: - typ = new(AddrType) - case encBoolean: - typ = new(BoolType) - case encComplexFloat: - typ = new(ComplexType) - case encFloat: - typ = new(FloatType) - case encSigned: - typ = new(IntType) - case encUnsigned: - typ = new(UintType) - case encSignedChar: - typ = new(CharType) - case encUnsignedChar: - typ = new(UcharType) - } - typeCache[off] = typ - t := typ.(interface { - Basic() *BasicType - }).Basic() - t.Name = name - t.BitSize, _ = e.Val(AttrBitSize).(int64) - t.BitOffset, _ = e.Val(AttrBitOffset).(int64) - - case TagClassType, TagStructType, TagUnionType: - // Structure, union, or class type. (DWARF v2 §5.5) - // Attributes: - // AttrName: name of struct, union, or class - // AttrByteSize: byte size [required] - // AttrDeclaration: if true, struct/union/class is incomplete - // Children: - // TagMember to describe one member. - // AttrName: name of member [required] - // AttrType: type of member [required] - // AttrByteSize: size in bytes - // AttrBitOffset: bit offset within bytes for bit fields - // AttrBitSize: bit size for bit fields - // AttrDataMemberLoc: location within struct [required for struct, class] - // There is much more to handle C++, all ignored for now. - t := new(StructType) - typ = t - typeCache[off] = t - switch e.Tag { - case TagClassType: - t.Kind = "class" - case TagStructType: - t.Kind = "struct" - case TagUnionType: - t.Kind = "union" - } - t.StructName, _ = e.Val(AttrName).(string) - t.Incomplete = e.Val(AttrDeclaration) != nil - t.Field = make([]*StructField, 0, 8) - var lastFieldType Type - var lastFieldBitOffset int64 - for kid := next(); kid != nil; kid = next() { - if kid.Tag == TagMember { - f := new(StructField) - if f.Type = typeOf(kid); err != nil { - goto Error - } - switch loc := kid.Val(AttrDataMemberLoc).(type) { - case []byte: - // TODO: Should have original compilation - // unit here, not unknownFormat. - b := makeBuf(d, unknownFormat{}, "location", 0, loc) - if b.uint8() != opPlusUconst { - err = DecodeError{name, kid.Offset, "unexpected opcode"} - goto Error - } - f.ByteOffset = int64(b.uint()) - if b.err != nil { - err = b.err - goto Error - } - case int64: - f.ByteOffset = loc - } - - haveBitOffset := false - f.Name, _ = kid.Val(AttrName).(string) - f.ByteSize, _ = kid.Val(AttrByteSize).(int64) - f.BitOffset, haveBitOffset = kid.Val(AttrBitOffset).(int64) - f.BitSize, _ = kid.Val(AttrBitSize).(int64) - t.Field = append(t.Field, f) - - bito := f.BitOffset - if !haveBitOffset { - bito = f.ByteOffset * 8 - } - if bito == lastFieldBitOffset && t.Kind != "union" { - // Last field was zero width. Fix array length. - // (DWARF writes out 0-length arrays as if they were 1-length arrays.) - zeroArray(lastFieldType) - } - lastFieldType = f.Type - lastFieldBitOffset = bito - } - } - if t.Kind != "union" { - b, ok := e.Val(AttrByteSize).(int64) - if ok && b*8 == lastFieldBitOffset { - // Final field must be zero width. Fix array length. - zeroArray(lastFieldType) - } - } - - case TagConstType, TagVolatileType, TagRestrictType: - // Type modifier (DWARF v2 §5.2) - // Attributes: - // AttrType: subtype - t := new(QualType) - typ = t - typeCache[off] = t - if t.Type = typeOf(e); err != nil { - goto Error - } - switch e.Tag { - case TagConstType: - t.Qual = "const" - case TagRestrictType: - t.Qual = "restrict" - case TagVolatileType: - t.Qual = "volatile" - } - - case TagEnumerationType: - // Enumeration type (DWARF v2 §5.6) - // Attributes: - // AttrName: enum name if any - // AttrByteSize: bytes required to represent largest value - // Children: - // TagEnumerator: - // AttrName: name of constant - // AttrConstValue: value of constant - t := new(EnumType) - typ = t - typeCache[off] = t - t.EnumName, _ = e.Val(AttrName).(string) - t.Val = make([]*EnumValue, 0, 8) - for kid := next(); kid != nil; kid = next() { - if kid.Tag == TagEnumerator { - f := new(EnumValue) - f.Name, _ = kid.Val(AttrName).(string) - f.Val, _ = kid.Val(AttrConstValue).(int64) - n := len(t.Val) - if n >= cap(t.Val) { - val := make([]*EnumValue, n, n*2) - copy(val, t.Val) - t.Val = val - } - t.Val = t.Val[0 : n+1] - t.Val[n] = f - } - } - - case TagPointerType: - // Type modifier (DWARF v2 §5.2) - // Attributes: - // AttrType: subtype [not required! void* has no AttrType] - // AttrAddrClass: address class [ignored] - t := new(PtrType) - typ = t - typeCache[off] = t - if e.Val(AttrType) == nil { - t.Type = &VoidType{} - break - } - t.Type = typeOf(e) - - case TagSubroutineType: - // Subroutine type. (DWARF v2 §5.7) - // Attributes: - // AttrType: type of return value if any - // AttrName: possible name of type [ignored] - // AttrPrototyped: whether used ANSI C prototype [ignored] - // Children: - // TagFormalParameter: typed parameter - // AttrType: type of parameter - // TagUnspecifiedParameter: final ... - t := new(FuncType) - typ = t - typeCache[off] = t - if t.ReturnType = typeOf(e); err != nil { - goto Error - } - t.ParamType = make([]Type, 0, 8) - for kid := next(); kid != nil; kid = next() { - var tkid Type - switch kid.Tag { - default: - continue - case TagFormalParameter: - if tkid = typeOf(kid); err != nil { - goto Error - } - case TagUnspecifiedParameters: - tkid = &DotDotDotType{} - } - t.ParamType = append(t.ParamType, tkid) - } - - case TagTypedef: - // Typedef (DWARF v2 §5.3) - // Attributes: - // AttrName: name [required] - // AttrType: type definition [required] - t := new(TypedefType) - typ = t - typeCache[off] = t - t.Name, _ = e.Val(AttrName).(string) - t.Type = typeOf(e) - } - - if err != nil { - goto Error - } - - { - b, ok := e.Val(AttrByteSize).(int64) - if !ok { - b = -1 - } - typ.Common().ByteSize = b - } - return typ, nil - -Error: - // If the parse fails, take the type out of the cache - // so that the next call with this offset doesn't hit - // the cache and return success. - delete(typeCache, off) - return nil, err -} - -func zeroArray(t Type) { - for { - at, ok := t.(*ArrayType) - if !ok { - break - } - at.Count = 0 - t = at.Type - } -} diff --git a/src/pkg/debug/dwarf/type_test.go b/src/pkg/debug/dwarf/type_test.go deleted file mode 100644 index 2cb85e74b..000000000 --- a/src/pkg/debug/dwarf/type_test.go +++ /dev/null @@ -1,122 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package dwarf_test - -import ( - . "debug/dwarf" - "debug/elf" - "debug/macho" - "testing" -) - -var typedefTests = map[string]string{ - "t_ptr_volatile_int": "*volatile int", - "t_ptr_const_char": "*const char", - "t_long": "long int", - "t_ushort": "short unsigned int", - "t_func_int_of_float_double": "func(float, double) int", - "t_ptr_func_int_of_float_double": "*func(float, double) int", - "t_ptr_func_int_of_float_complex": "*func(complex float) int", - "t_ptr_func_int_of_double_complex": "*func(complex double) int", - "t_ptr_func_int_of_long_double_complex": "*func(complex long double) int", - "t_func_ptr_int_of_char_schar_uchar": "func(char, signed char, unsigned char) *int", - "t_func_void_of_char": "func(char) void", - "t_func_void_of_void": "func() void", - "t_func_void_of_ptr_char_dots": "func(*char, ...) void", - "t_my_struct": "struct my_struct {vi volatile int@0; x char@4 : 1@7; y int@4 : 4@27; z [0]int@8; array [40]long long int@8; zz [0]int@328}", - "t_my_struct1": "struct my_struct1 {zz [1]int@0}", - "t_my_union": "union my_union {vi volatile int@0; x char@0 : 1@7; y int@0 : 4@28; array [40]long long int@0}", - "t_my_enum": "enum my_enum {e1=1; e2=2; e3=-5; e4=1000000000000000}", - "t_my_list": "struct list {val short int@0; next *t_my_list@8}", - "t_my_tree": "struct tree {left *struct tree@0; right *struct tree@8; val long long unsigned int@16}", -} - -// As Apple converts gcc to a clang-based front end -// they keep breaking the DWARF output. This map lists the -// conversion from real answer to Apple answer. -var machoBug = map[string]string{ - "func(*char, ...) void": "func(*char) void", - "enum my_enum {e1=1; e2=2; e3=-5; e4=1000000000000000}": "enum my_enum {e1=1; e2=2; e3=-5; e4=-1530494976}", -} - -func elfData(t *testing.T, name string) *Data { - f, err := elf.Open(name) - if err != nil { - t.Fatal(err) - } - - d, err := f.DWARF() - if err != nil { - t.Fatal(err) - } - return d -} - -func machoData(t *testing.T, name string) *Data { - f, err := macho.Open(name) - if err != nil { - t.Fatal(err) - } - - d, err := f.DWARF() - if err != nil { - t.Fatal(err) - } - return d -} - -func TestTypedefsELF(t *testing.T) { testTypedefs(t, elfData(t, "testdata/typedef.elf"), "elf") } - -func TestTypedefsMachO(t *testing.T) { - testTypedefs(t, machoData(t, "testdata/typedef.macho"), "macho") -} - -func TestTypedefsELFDwarf4(t *testing.T) { testTypedefs(t, elfData(t, "testdata/typedef.elf4"), "elf") } - -func testTypedefs(t *testing.T, d *Data, kind string) { - r := d.Reader() - seen := make(map[string]bool) - for { - e, err := r.Next() - if err != nil { - t.Fatal("r.Next:", err) - } - if e == nil { - break - } - if e.Tag == TagTypedef { - typ, err := d.Type(e.Offset) - if err != nil { - t.Fatal("d.Type:", err) - } - t1 := typ.(*TypedefType) - var typstr string - if ts, ok := t1.Type.(*StructType); ok { - typstr = ts.Defn() - } else { - typstr = t1.Type.String() - } - - if want, ok := typedefTests[t1.Name]; ok { - if seen[t1.Name] { - t.Errorf("multiple definitions for %s", t1.Name) - } - seen[t1.Name] = true - if typstr != want && (kind != "macho" || typstr != machoBug[want]) { - t.Errorf("%s:\n\thave %s\n\twant %s", t1.Name, typstr, want) - } - } - } - if e.Tag != TagCompileUnit { - r.SkipChildren() - } - } - - for k := range typedefTests { - if !seen[k] { - t.Errorf("missing %s", k) - } - } -} diff --git a/src/pkg/debug/dwarf/typeunit.go b/src/pkg/debug/dwarf/typeunit.go deleted file mode 100644 index 3fd1c9973..000000000 --- a/src/pkg/debug/dwarf/typeunit.go +++ /dev/null @@ -1,166 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package dwarf - -import ( - "fmt" - "strconv" -) - -// Parse the type units stored in a DWARF4 .debug_types section. Each -// type unit defines a single primary type and an 8-byte signature. -// Other sections may then use formRefSig8 to refer to the type. - -// The typeUnit format is a single type with a signature. It holds -// the same data as a compilation unit. -type typeUnit struct { - unit - toff Offset // Offset to signature type within data. - name string // Name of .debug_type section. - cache Type // Cache the type, nil to start. -} - -// Parse a .debug_types section. -func (d *Data) parseTypes(name string, types []byte) error { - b := makeBuf(d, unknownFormat{}, name, 0, types) - for len(b.data) > 0 { - base := b.off - dwarf64 := false - n := b.uint32() - if n == 0xffffffff { - n64 := b.uint64() - if n64 != uint64(uint32(n64)) { - b.error("type unit length overflow") - return b.err - } - n = uint32(n64) - dwarf64 = true - } - hdroff := b.off - vers := b.uint16() - if vers != 4 { - b.error("unsupported DWARF version " + strconv.Itoa(int(vers))) - return b.err - } - var ao uint32 - if !dwarf64 { - ao = b.uint32() - } else { - ao64 := b.uint64() - if ao64 != uint64(uint32(ao64)) { - b.error("type unit abbrev offset overflow") - return b.err - } - ao = uint32(ao64) - } - atable, err := d.parseAbbrev(ao) - if err != nil { - return err - } - asize := b.uint8() - sig := b.uint64() - - var toff uint32 - if !dwarf64 { - toff = b.uint32() - } else { - to64 := b.uint64() - if to64 != uint64(uint32(to64)) { - b.error("type unit type offset overflow") - return b.err - } - toff = uint32(to64) - } - - boff := b.off - d.typeSigs[sig] = &typeUnit{ - unit: unit{ - base: base, - off: boff, - data: b.bytes(int(Offset(n) - (b.off - hdroff))), - atable: atable, - asize: int(asize), - vers: int(vers), - is64: dwarf64, - }, - toff: Offset(toff), - name: name, - } - if b.err != nil { - return b.err - } - } - return nil -} - -// Return the type for a type signature. -func (d *Data) sigToType(sig uint64) (Type, error) { - tu := d.typeSigs[sig] - if tu == nil { - return nil, fmt.Errorf("no type unit with signature %v", sig) - } - if tu.cache != nil { - return tu.cache, nil - } - - b := makeBuf(d, tu, tu.name, tu.off, tu.data) - r := &typeUnitReader{d: d, tu: tu, b: b} - t, err := d.readType(tu.name, r, Offset(tu.toff), make(map[Offset]Type)) - if err != nil { - return nil, err - } - - tu.cache = t - return t, nil -} - -// typeUnitReader is a typeReader for a tagTypeUnit. -type typeUnitReader struct { - d *Data - tu *typeUnit - b buf - err error -} - -// Seek to a new position in the type unit. -func (tur *typeUnitReader) Seek(off Offset) { - tur.err = nil - doff := off - tur.tu.off - if doff < 0 || doff >= Offset(len(tur.tu.data)) { - tur.err = fmt.Errorf("%s: offset %d out of range; max %d", tur.tu.name, doff, len(tur.tu.data)) - return - } - tur.b = makeBuf(tur.d, tur.tu, tur.tu.name, off, tur.tu.data[doff:]) -} - -// Next reads the next Entry from the type unit. -func (tur *typeUnitReader) Next() (*Entry, error) { - if tur.err != nil { - return nil, tur.err - } - if len(tur.tu.data) == 0 { - return nil, nil - } - e := tur.b.entry(tur.tu.atable, tur.tu.base) - if tur.b.err != nil { - tur.err = tur.b.err - return nil, tur.err - } - return e, nil -} - -// clone returns a new reader for the type unit. -func (tur *typeUnitReader) clone() typeReader { - return &typeUnitReader{ - d: tur.d, - tu: tur.tu, - b: makeBuf(tur.d, tur.tu, tur.tu.name, tur.tu.off, tur.tu.data), - } -} - -// offset returns the current offset. -func (tur *typeUnitReader) offset() Offset { - return tur.b.off -} diff --git a/src/pkg/debug/dwarf/unit.go b/src/pkg/debug/dwarf/unit.go deleted file mode 100644 index 0fbc8e082..000000000 --- a/src/pkg/debug/dwarf/unit.go +++ /dev/null @@ -1,90 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package dwarf - -import "strconv" - -// DWARF debug info is split into a sequence of compilation units. -// Each unit has its own abbreviation table and address size. - -type unit struct { - base Offset // byte offset of header within the aggregate info - off Offset // byte offset of data within the aggregate info - data []byte - atable abbrevTable - asize int - vers int - is64 bool // True for 64-bit DWARF format -} - -// Implement the dataFormat interface. - -func (u *unit) version() int { - return u.vers -} - -func (u *unit) dwarf64() (bool, bool) { - return u.is64, true -} - -func (u *unit) addrsize() int { - return u.asize -} - -func (d *Data) parseUnits() ([]unit, error) { - // Count units. - nunit := 0 - b := makeBuf(d, unknownFormat{}, "info", 0, d.info) - for len(b.data) > 0 { - len := b.uint32() - if len == 0xffffffff { - len64 := b.uint64() - if len64 != uint64(uint32(len64)) { - b.error("unit length overflow") - break - } - len = uint32(len64) - } - b.skip(int(len)) - nunit++ - } - if b.err != nil { - return nil, b.err - } - - // Again, this time writing them down. - b = makeBuf(d, unknownFormat{}, "info", 0, d.info) - units := make([]unit, nunit) - for i := range units { - u := &units[i] - u.base = b.off - n := b.uint32() - if n == 0xffffffff { - u.is64 = true - n = uint32(b.uint64()) - } - vers := b.uint16() - if vers != 2 && vers != 3 && vers != 4 { - b.error("unsupported DWARF version " + strconv.Itoa(int(vers))) - break - } - u.vers = int(vers) - atable, err := d.parseAbbrev(b.uint32()) - if err != nil { - if b.err == nil { - b.err = err - } - break - } - u.atable = atable - u.asize = int(b.uint8()) - u.off = b.off - u.data = b.bytes(int(n - (2 + 4 + 1))) - } - if b.err != nil { - return nil, b.err - } - return units, nil -} diff --git a/src/pkg/debug/elf/elf.go b/src/pkg/debug/elf/elf.go deleted file mode 100644 index d622dae2a..000000000 --- a/src/pkg/debug/elf/elf.go +++ /dev/null @@ -1,1521 +0,0 @@ -/* - * ELF constants and data structures - * - * Derived from: - * $FreeBSD: src/sys/sys/elf32.h,v 1.8.14.1 2005/12/30 22:13:58 marcel Exp $ - * $FreeBSD: src/sys/sys/elf64.h,v 1.10.14.1 2005/12/30 22:13:58 marcel Exp $ - * $FreeBSD: src/sys/sys/elf_common.h,v 1.15.8.1 2005/12/30 22:13:58 marcel Exp $ - * $FreeBSD: src/sys/alpha/include/elf.h,v 1.14 2003/09/25 01:10:22 peter Exp $ - * $FreeBSD: src/sys/amd64/include/elf.h,v 1.18 2004/08/03 08:21:48 dfr Exp $ - * $FreeBSD: src/sys/arm/include/elf.h,v 1.5.2.1 2006/06/30 21:42:52 cognet Exp $ - * $FreeBSD: src/sys/i386/include/elf.h,v 1.16 2004/08/02 19:12:17 dfr Exp $ - * $FreeBSD: src/sys/powerpc/include/elf.h,v 1.7 2004/11/02 09:47:01 ssouhlal Exp $ - * $FreeBSD: src/sys/sparc64/include/elf.h,v 1.12 2003/09/25 01:10:26 peter Exp $ - * - * Copyright (c) 1996-1998 John D. Polstra. All rights reserved. - * Copyright (c) 2001 David E. O'Brien - * Portions Copyright 2009 The Go Authors. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -package elf - -import "strconv" - -/* - * Constants - */ - -// Indexes into the Header.Ident array. -const ( - EI_CLASS = 4 /* Class of machine. */ - EI_DATA = 5 /* Data format. */ - EI_VERSION = 6 /* ELF format version. */ - EI_OSABI = 7 /* Operating system / ABI identification */ - EI_ABIVERSION = 8 /* ABI version */ - EI_PAD = 9 /* Start of padding (per SVR4 ABI). */ - EI_NIDENT = 16 /* Size of e_ident array. */ -) - -// Initial magic number for ELF files. -const ELFMAG = "\177ELF" - -// Version is found in Header.Ident[EI_VERSION] and Header.Version. -type Version byte - -const ( - EV_NONE Version = 0 - EV_CURRENT Version = 1 -) - -var versionStrings = []intName{ - {0, "EV_NONE"}, - {1, "EV_CURRENT"}, -} - -func (i Version) String() string { return stringName(uint32(i), versionStrings, false) } -func (i Version) GoString() string { return stringName(uint32(i), versionStrings, true) } - -// Class is found in Header.Ident[EI_CLASS] and Header.Class. -type Class byte - -const ( - ELFCLASSNONE Class = 0 /* Unknown class. */ - ELFCLASS32 Class = 1 /* 32-bit architecture. */ - ELFCLASS64 Class = 2 /* 64-bit architecture. */ -) - -var classStrings = []intName{ - {0, "ELFCLASSNONE"}, - {1, "ELFCLASS32"}, - {2, "ELFCLASS64"}, -} - -func (i Class) String() string { return stringName(uint32(i), classStrings, false) } -func (i Class) GoString() string { return stringName(uint32(i), classStrings, true) } - -// Data is found in Header.Ident[EI_DATA] and Header.Data. -type Data byte - -const ( - ELFDATANONE Data = 0 /* Unknown data format. */ - ELFDATA2LSB Data = 1 /* 2's complement little-endian. */ - ELFDATA2MSB Data = 2 /* 2's complement big-endian. */ -) - -var dataStrings = []intName{ - {0, "ELFDATANONE"}, - {1, "ELFDATA2LSB"}, - {2, "ELFDATA2MSB"}, -} - -func (i Data) String() string { return stringName(uint32(i), dataStrings, false) } -func (i Data) GoString() string { return stringName(uint32(i), dataStrings, true) } - -// OSABI is found in Header.Ident[EI_OSABI] and Header.OSABI. -type OSABI byte - -const ( - ELFOSABI_NONE OSABI = 0 /* UNIX System V ABI */ - ELFOSABI_HPUX OSABI = 1 /* HP-UX operating system */ - ELFOSABI_NETBSD OSABI = 2 /* NetBSD */ - ELFOSABI_LINUX OSABI = 3 /* GNU/Linux */ - ELFOSABI_HURD OSABI = 4 /* GNU/Hurd */ - ELFOSABI_86OPEN OSABI = 5 /* 86Open common IA32 ABI */ - ELFOSABI_SOLARIS OSABI = 6 /* Solaris */ - ELFOSABI_AIX OSABI = 7 /* AIX */ - ELFOSABI_IRIX OSABI = 8 /* IRIX */ - ELFOSABI_FREEBSD OSABI = 9 /* FreeBSD */ - ELFOSABI_TRU64 OSABI = 10 /* TRU64 UNIX */ - ELFOSABI_MODESTO OSABI = 11 /* Novell Modesto */ - ELFOSABI_OPENBSD OSABI = 12 /* OpenBSD */ - ELFOSABI_OPENVMS OSABI = 13 /* Open VMS */ - ELFOSABI_NSK OSABI = 14 /* HP Non-Stop Kernel */ - ELFOSABI_ARM OSABI = 97 /* ARM */ - ELFOSABI_STANDALONE OSABI = 255 /* Standalone (embedded) application */ -) - -var osabiStrings = []intName{ - {0, "ELFOSABI_NONE"}, - {1, "ELFOSABI_HPUX"}, - {2, "ELFOSABI_NETBSD"}, - {3, "ELFOSABI_LINUX"}, - {4, "ELFOSABI_HURD"}, - {5, "ELFOSABI_86OPEN"}, - {6, "ELFOSABI_SOLARIS"}, - {7, "ELFOSABI_AIX"}, - {8, "ELFOSABI_IRIX"}, - {9, "ELFOSABI_FREEBSD"}, - {10, "ELFOSABI_TRU64"}, - {11, "ELFOSABI_MODESTO"}, - {12, "ELFOSABI_OPENBSD"}, - {13, "ELFOSABI_OPENVMS"}, - {14, "ELFOSABI_NSK"}, - {97, "ELFOSABI_ARM"}, - {255, "ELFOSABI_STANDALONE"}, -} - -func (i OSABI) String() string { return stringName(uint32(i), osabiStrings, false) } -func (i OSABI) GoString() string { return stringName(uint32(i), osabiStrings, true) } - -// Type is found in Header.Type. -type Type uint16 - -const ( - ET_NONE Type = 0 /* Unknown type. */ - ET_REL Type = 1 /* Relocatable. */ - ET_EXEC Type = 2 /* Executable. */ - ET_DYN Type = 3 /* Shared object. */ - ET_CORE Type = 4 /* Core file. */ - ET_LOOS Type = 0xfe00 /* First operating system specific. */ - ET_HIOS Type = 0xfeff /* Last operating system-specific. */ - ET_LOPROC Type = 0xff00 /* First processor-specific. */ - ET_HIPROC Type = 0xffff /* Last processor-specific. */ -) - -var typeStrings = []intName{ - {0, "ET_NONE"}, - {1, "ET_REL"}, - {2, "ET_EXEC"}, - {3, "ET_DYN"}, - {4, "ET_CORE"}, - {0xfe00, "ET_LOOS"}, - {0xfeff, "ET_HIOS"}, - {0xff00, "ET_LOPROC"}, - {0xffff, "ET_HIPROC"}, -} - -func (i Type) String() string { return stringName(uint32(i), typeStrings, false) } -func (i Type) GoString() string { return stringName(uint32(i), typeStrings, true) } - -// Machine is found in Header.Machine. -type Machine uint16 - -const ( - EM_NONE Machine = 0 /* Unknown machine. */ - EM_M32 Machine = 1 /* AT&T WE32100. */ - EM_SPARC Machine = 2 /* Sun SPARC. */ - EM_386 Machine = 3 /* Intel i386. */ - EM_68K Machine = 4 /* Motorola 68000. */ - EM_88K Machine = 5 /* Motorola 88000. */ - EM_860 Machine = 7 /* Intel i860. */ - EM_MIPS Machine = 8 /* MIPS R3000 Big-Endian only. */ - EM_S370 Machine = 9 /* IBM System/370. */ - EM_MIPS_RS3_LE Machine = 10 /* MIPS R3000 Little-Endian. */ - EM_PARISC Machine = 15 /* HP PA-RISC. */ - EM_VPP500 Machine = 17 /* Fujitsu VPP500. */ - EM_SPARC32PLUS Machine = 18 /* SPARC v8plus. */ - EM_960 Machine = 19 /* Intel 80960. */ - EM_PPC Machine = 20 /* PowerPC 32-bit. */ - EM_PPC64 Machine = 21 /* PowerPC 64-bit. */ - EM_S390 Machine = 22 /* IBM System/390. */ - EM_V800 Machine = 36 /* NEC V800. */ - EM_FR20 Machine = 37 /* Fujitsu FR20. */ - EM_RH32 Machine = 38 /* TRW RH-32. */ - EM_RCE Machine = 39 /* Motorola RCE. */ - EM_ARM Machine = 40 /* ARM. */ - EM_SH Machine = 42 /* Hitachi SH. */ - EM_SPARCV9 Machine = 43 /* SPARC v9 64-bit. */ - EM_TRICORE Machine = 44 /* Siemens TriCore embedded processor. */ - EM_ARC Machine = 45 /* Argonaut RISC Core. */ - EM_H8_300 Machine = 46 /* Hitachi H8/300. */ - EM_H8_300H Machine = 47 /* Hitachi H8/300H. */ - EM_H8S Machine = 48 /* Hitachi H8S. */ - EM_H8_500 Machine = 49 /* Hitachi H8/500. */ - EM_IA_64 Machine = 50 /* Intel IA-64 Processor. */ - EM_MIPS_X Machine = 51 /* Stanford MIPS-X. */ - EM_COLDFIRE Machine = 52 /* Motorola ColdFire. */ - EM_68HC12 Machine = 53 /* Motorola M68HC12. */ - EM_MMA Machine = 54 /* Fujitsu MMA. */ - EM_PCP Machine = 55 /* Siemens PCP. */ - EM_NCPU Machine = 56 /* Sony nCPU. */ - EM_NDR1 Machine = 57 /* Denso NDR1 microprocessor. */ - EM_STARCORE Machine = 58 /* Motorola Star*Core processor. */ - EM_ME16 Machine = 59 /* Toyota ME16 processor. */ - EM_ST100 Machine = 60 /* STMicroelectronics ST100 processor. */ - EM_TINYJ Machine = 61 /* Advanced Logic Corp. TinyJ processor. */ - EM_X86_64 Machine = 62 /* Advanced Micro Devices x86-64 */ - - /* Non-standard or deprecated. */ - EM_486 Machine = 6 /* Intel i486. */ - EM_MIPS_RS4_BE Machine = 10 /* MIPS R4000 Big-Endian */ - EM_ALPHA_STD Machine = 41 /* Digital Alpha (standard value). */ - EM_ALPHA Machine = 0x9026 /* Alpha (written in the absence of an ABI) */ -) - -var machineStrings = []intName{ - {0, "EM_NONE"}, - {1, "EM_M32"}, - {2, "EM_SPARC"}, - {3, "EM_386"}, - {4, "EM_68K"}, - {5, "EM_88K"}, - {7, "EM_860"}, - {8, "EM_MIPS"}, - {9, "EM_S370"}, - {10, "EM_MIPS_RS3_LE"}, - {15, "EM_PARISC"}, - {17, "EM_VPP500"}, - {18, "EM_SPARC32PLUS"}, - {19, "EM_960"}, - {20, "EM_PPC"}, - {21, "EM_PPC64"}, - {22, "EM_S390"}, - {36, "EM_V800"}, - {37, "EM_FR20"}, - {38, "EM_RH32"}, - {39, "EM_RCE"}, - {40, "EM_ARM"}, - {42, "EM_SH"}, - {43, "EM_SPARCV9"}, - {44, "EM_TRICORE"}, - {45, "EM_ARC"}, - {46, "EM_H8_300"}, - {47, "EM_H8_300H"}, - {48, "EM_H8S"}, - {49, "EM_H8_500"}, - {50, "EM_IA_64"}, - {51, "EM_MIPS_X"}, - {52, "EM_COLDFIRE"}, - {53, "EM_68HC12"}, - {54, "EM_MMA"}, - {55, "EM_PCP"}, - {56, "EM_NCPU"}, - {57, "EM_NDR1"}, - {58, "EM_STARCORE"}, - {59, "EM_ME16"}, - {60, "EM_ST100"}, - {61, "EM_TINYJ"}, - {62, "EM_X86_64"}, - - /* Non-standard or deprecated. */ - {6, "EM_486"}, - {10, "EM_MIPS_RS4_BE"}, - {41, "EM_ALPHA_STD"}, - {0x9026, "EM_ALPHA"}, -} - -func (i Machine) String() string { return stringName(uint32(i), machineStrings, false) } -func (i Machine) GoString() string { return stringName(uint32(i), machineStrings, true) } - -// Special section indices. -type SectionIndex int - -const ( - SHN_UNDEF SectionIndex = 0 /* Undefined, missing, irrelevant. */ - SHN_LORESERVE SectionIndex = 0xff00 /* First of reserved range. */ - SHN_LOPROC SectionIndex = 0xff00 /* First processor-specific. */ - SHN_HIPROC SectionIndex = 0xff1f /* Last processor-specific. */ - SHN_LOOS SectionIndex = 0xff20 /* First operating system-specific. */ - SHN_HIOS SectionIndex = 0xff3f /* Last operating system-specific. */ - SHN_ABS SectionIndex = 0xfff1 /* Absolute values. */ - SHN_COMMON SectionIndex = 0xfff2 /* Common data. */ - SHN_XINDEX SectionIndex = 0xffff /* Escape -- index stored elsewhere. */ - SHN_HIRESERVE SectionIndex = 0xffff /* Last of reserved range. */ -) - -var shnStrings = []intName{ - {0, "SHN_UNDEF"}, - {0xff00, "SHN_LOPROC"}, - {0xff20, "SHN_LOOS"}, - {0xfff1, "SHN_ABS"}, - {0xfff2, "SHN_COMMON"}, - {0xffff, "SHN_XINDEX"}, -} - -func (i SectionIndex) String() string { return stringName(uint32(i), shnStrings, false) } -func (i SectionIndex) GoString() string { return stringName(uint32(i), shnStrings, true) } - -// Section type. -type SectionType uint32 - -const ( - SHT_NULL SectionType = 0 /* inactive */ - SHT_PROGBITS SectionType = 1 /* program defined information */ - SHT_SYMTAB SectionType = 2 /* symbol table section */ - SHT_STRTAB SectionType = 3 /* string table section */ - SHT_RELA SectionType = 4 /* relocation section with addends */ - SHT_HASH SectionType = 5 /* symbol hash table section */ - SHT_DYNAMIC SectionType = 6 /* dynamic section */ - SHT_NOTE SectionType = 7 /* note section */ - SHT_NOBITS SectionType = 8 /* no space section */ - SHT_REL SectionType = 9 /* relocation section - no addends */ - SHT_SHLIB SectionType = 10 /* reserved - purpose unknown */ - SHT_DYNSYM SectionType = 11 /* dynamic symbol table section */ - SHT_INIT_ARRAY SectionType = 14 /* Initialization function pointers. */ - SHT_FINI_ARRAY SectionType = 15 /* Termination function pointers. */ - SHT_PREINIT_ARRAY SectionType = 16 /* Pre-initialization function ptrs. */ - SHT_GROUP SectionType = 17 /* Section group. */ - SHT_SYMTAB_SHNDX SectionType = 18 /* Section indexes (see SHN_XINDEX). */ - SHT_LOOS SectionType = 0x60000000 /* First of OS specific semantics */ - SHT_GNU_ATTRIBUTES SectionType = 0x6ffffff5 /* GNU object attributes */ - SHT_GNU_HASH SectionType = 0x6ffffff6 /* GNU hash table */ - SHT_GNU_LIBLIST SectionType = 0x6ffffff7 /* GNU prelink library list */ - SHT_GNU_VERDEF SectionType = 0x6ffffffd /* GNU version definition section */ - SHT_GNU_VERNEED SectionType = 0x6ffffffe /* GNU version needs section */ - SHT_GNU_VERSYM SectionType = 0x6fffffff /* GNU version symbol table */ - SHT_HIOS SectionType = 0x6fffffff /* Last of OS specific semantics */ - SHT_LOPROC SectionType = 0x70000000 /* reserved range for processor */ - SHT_HIPROC SectionType = 0x7fffffff /* specific section header types */ - SHT_LOUSER SectionType = 0x80000000 /* reserved range for application */ - SHT_HIUSER SectionType = 0xffffffff /* specific indexes */ -) - -var shtStrings = []intName{ - {0, "SHT_NULL"}, - {1, "SHT_PROGBITS"}, - {2, "SHT_SYMTAB"}, - {3, "SHT_STRTAB"}, - {4, "SHT_RELA"}, - {5, "SHT_HASH"}, - {6, "SHT_DYNAMIC"}, - {7, "SHT_NOTE"}, - {8, "SHT_NOBITS"}, - {9, "SHT_REL"}, - {10, "SHT_SHLIB"}, - {11, "SHT_DYNSYM"}, - {14, "SHT_INIT_ARRAY"}, - {15, "SHT_FINI_ARRAY"}, - {16, "SHT_PREINIT_ARRAY"}, - {17, "SHT_GROUP"}, - {18, "SHT_SYMTAB_SHNDX"}, - {0x60000000, "SHT_LOOS"}, - {0x6ffffff5, "SHT_GNU_ATTRIBUTES"}, - {0x6ffffff6, "SHT_GNU_HASH"}, - {0x6ffffff7, "SHT_GNU_LIBLIST"}, - {0x6ffffffd, "SHT_GNU_VERDEF"}, - {0x6ffffffe, "SHT_GNU_VERNEED"}, - {0x6fffffff, "SHT_GNU_VERSYM"}, - {0x70000000, "SHT_LOPROC"}, - {0x7fffffff, "SHT_HIPROC"}, - {0x80000000, "SHT_LOUSER"}, - {0xffffffff, "SHT_HIUSER"}, -} - -func (i SectionType) String() string { return stringName(uint32(i), shtStrings, false) } -func (i SectionType) GoString() string { return stringName(uint32(i), shtStrings, true) } - -// Section flags. -type SectionFlag uint32 - -const ( - SHF_WRITE SectionFlag = 0x1 /* Section contains writable data. */ - SHF_ALLOC SectionFlag = 0x2 /* Section occupies memory. */ - SHF_EXECINSTR SectionFlag = 0x4 /* Section contains instructions. */ - SHF_MERGE SectionFlag = 0x10 /* Section may be merged. */ - SHF_STRINGS SectionFlag = 0x20 /* Section contains strings. */ - SHF_INFO_LINK SectionFlag = 0x40 /* sh_info holds section index. */ - SHF_LINK_ORDER SectionFlag = 0x80 /* Special ordering requirements. */ - SHF_OS_NONCONFORMING SectionFlag = 0x100 /* OS-specific processing required. */ - SHF_GROUP SectionFlag = 0x200 /* Member of section group. */ - SHF_TLS SectionFlag = 0x400 /* Section contains TLS data. */ - SHF_MASKOS SectionFlag = 0x0ff00000 /* OS-specific semantics. */ - SHF_MASKPROC SectionFlag = 0xf0000000 /* Processor-specific semantics. */ -) - -var shfStrings = []intName{ - {0x1, "SHF_WRITE"}, - {0x2, "SHF_ALLOC"}, - {0x4, "SHF_EXECINSTR"}, - {0x10, "SHF_MERGE"}, - {0x20, "SHF_STRINGS"}, - {0x40, "SHF_INFO_LINK"}, - {0x80, "SHF_LINK_ORDER"}, - {0x100, "SHF_OS_NONCONFORMING"}, - {0x200, "SHF_GROUP"}, - {0x400, "SHF_TLS"}, -} - -func (i SectionFlag) String() string { return flagName(uint32(i), shfStrings, false) } -func (i SectionFlag) GoString() string { return flagName(uint32(i), shfStrings, true) } - -// Prog.Type -type ProgType int - -const ( - PT_NULL ProgType = 0 /* Unused entry. */ - PT_LOAD ProgType = 1 /* Loadable segment. */ - PT_DYNAMIC ProgType = 2 /* Dynamic linking information segment. */ - PT_INTERP ProgType = 3 /* Pathname of interpreter. */ - PT_NOTE ProgType = 4 /* Auxiliary information. */ - PT_SHLIB ProgType = 5 /* Reserved (not used). */ - PT_PHDR ProgType = 6 /* Location of program header itself. */ - PT_TLS ProgType = 7 /* Thread local storage segment */ - PT_LOOS ProgType = 0x60000000 /* First OS-specific. */ - PT_HIOS ProgType = 0x6fffffff /* Last OS-specific. */ - PT_LOPROC ProgType = 0x70000000 /* First processor-specific type. */ - PT_HIPROC ProgType = 0x7fffffff /* Last processor-specific type. */ -) - -var ptStrings = []intName{ - {0, "PT_NULL"}, - {1, "PT_LOAD"}, - {2, "PT_DYNAMIC"}, - {3, "PT_INTERP"}, - {4, "PT_NOTE"}, - {5, "PT_SHLIB"}, - {6, "PT_PHDR"}, - {7, "PT_TLS"}, - {0x60000000, "PT_LOOS"}, - {0x6fffffff, "PT_HIOS"}, - {0x70000000, "PT_LOPROC"}, - {0x7fffffff, "PT_HIPROC"}, -} - -func (i ProgType) String() string { return stringName(uint32(i), ptStrings, false) } -func (i ProgType) GoString() string { return stringName(uint32(i), ptStrings, true) } - -// Prog.Flag -type ProgFlag uint32 - -const ( - PF_X ProgFlag = 0x1 /* Executable. */ - PF_W ProgFlag = 0x2 /* Writable. */ - PF_R ProgFlag = 0x4 /* Readable. */ - PF_MASKOS ProgFlag = 0x0ff00000 /* Operating system-specific. */ - PF_MASKPROC ProgFlag = 0xf0000000 /* Processor-specific. */ -) - -var pfStrings = []intName{ - {0x1, "PF_X"}, - {0x2, "PF_W"}, - {0x4, "PF_R"}, -} - -func (i ProgFlag) String() string { return flagName(uint32(i), pfStrings, false) } -func (i ProgFlag) GoString() string { return flagName(uint32(i), pfStrings, true) } - -// Dyn.Tag -type DynTag int - -const ( - DT_NULL DynTag = 0 /* Terminating entry. */ - DT_NEEDED DynTag = 1 /* String table offset of a needed shared library. */ - DT_PLTRELSZ DynTag = 2 /* Total size in bytes of PLT relocations. */ - DT_PLTGOT DynTag = 3 /* Processor-dependent address. */ - DT_HASH DynTag = 4 /* Address of symbol hash table. */ - DT_STRTAB DynTag = 5 /* Address of string table. */ - DT_SYMTAB DynTag = 6 /* Address of symbol table. */ - DT_RELA DynTag = 7 /* Address of ElfNN_Rela relocations. */ - DT_RELASZ DynTag = 8 /* Total size of ElfNN_Rela relocations. */ - DT_RELAENT DynTag = 9 /* Size of each ElfNN_Rela relocation entry. */ - DT_STRSZ DynTag = 10 /* Size of string table. */ - DT_SYMENT DynTag = 11 /* Size of each symbol table entry. */ - DT_INIT DynTag = 12 /* Address of initialization function. */ - DT_FINI DynTag = 13 /* Address of finalization function. */ - DT_SONAME DynTag = 14 /* String table offset of shared object name. */ - DT_RPATH DynTag = 15 /* String table offset of library path. [sup] */ - DT_SYMBOLIC DynTag = 16 /* Indicates "symbolic" linking. [sup] */ - DT_REL DynTag = 17 /* Address of ElfNN_Rel relocations. */ - DT_RELSZ DynTag = 18 /* Total size of ElfNN_Rel relocations. */ - DT_RELENT DynTag = 19 /* Size of each ElfNN_Rel relocation. */ - DT_PLTREL DynTag = 20 /* Type of relocation used for PLT. */ - DT_DEBUG DynTag = 21 /* Reserved (not used). */ - DT_TEXTREL DynTag = 22 /* Indicates there may be relocations in non-writable segments. [sup] */ - DT_JMPREL DynTag = 23 /* Address of PLT relocations. */ - DT_BIND_NOW DynTag = 24 /* [sup] */ - DT_INIT_ARRAY DynTag = 25 /* Address of the array of pointers to initialization functions */ - DT_FINI_ARRAY DynTag = 26 /* Address of the array of pointers to termination functions */ - DT_INIT_ARRAYSZ DynTag = 27 /* Size in bytes of the array of initialization functions. */ - DT_FINI_ARRAYSZ DynTag = 28 /* Size in bytes of the array of termination functions. */ - DT_RUNPATH DynTag = 29 /* String table offset of a null-terminated library search path string. */ - DT_FLAGS DynTag = 30 /* Object specific flag values. */ - DT_ENCODING DynTag = 32 /* Values greater than or equal to DT_ENCODING - and less than DT_LOOS follow the rules for - the interpretation of the d_un union - as follows: even == 'd_ptr', even == 'd_val' - or none */ - DT_PREINIT_ARRAY DynTag = 32 /* Address of the array of pointers to pre-initialization functions. */ - DT_PREINIT_ARRAYSZ DynTag = 33 /* Size in bytes of the array of pre-initialization functions. */ - DT_LOOS DynTag = 0x6000000d /* First OS-specific */ - DT_HIOS DynTag = 0x6ffff000 /* Last OS-specific */ - DT_VERSYM DynTag = 0x6ffffff0 - DT_VERNEED DynTag = 0x6ffffffe - DT_VERNEEDNUM DynTag = 0x6fffffff - DT_LOPROC DynTag = 0x70000000 /* First processor-specific type. */ - DT_HIPROC DynTag = 0x7fffffff /* Last processor-specific type. */ -) - -var dtStrings = []intName{ - {0, "DT_NULL"}, - {1, "DT_NEEDED"}, - {2, "DT_PLTRELSZ"}, - {3, "DT_PLTGOT"}, - {4, "DT_HASH"}, - {5, "DT_STRTAB"}, - {6, "DT_SYMTAB"}, - {7, "DT_RELA"}, - {8, "DT_RELASZ"}, - {9, "DT_RELAENT"}, - {10, "DT_STRSZ"}, - {11, "DT_SYMENT"}, - {12, "DT_INIT"}, - {13, "DT_FINI"}, - {14, "DT_SONAME"}, - {15, "DT_RPATH"}, - {16, "DT_SYMBOLIC"}, - {17, "DT_REL"}, - {18, "DT_RELSZ"}, - {19, "DT_RELENT"}, - {20, "DT_PLTREL"}, - {21, "DT_DEBUG"}, - {22, "DT_TEXTREL"}, - {23, "DT_JMPREL"}, - {24, "DT_BIND_NOW"}, - {25, "DT_INIT_ARRAY"}, - {26, "DT_FINI_ARRAY"}, - {27, "DT_INIT_ARRAYSZ"}, - {28, "DT_FINI_ARRAYSZ"}, - {29, "DT_RUNPATH"}, - {30, "DT_FLAGS"}, - {32, "DT_ENCODING"}, - {32, "DT_PREINIT_ARRAY"}, - {33, "DT_PREINIT_ARRAYSZ"}, - {0x6000000d, "DT_LOOS"}, - {0x6ffff000, "DT_HIOS"}, - {0x6ffffff0, "DT_VERSYM"}, - {0x6ffffffe, "DT_VERNEED"}, - {0x6fffffff, "DT_VERNEEDNUM"}, - {0x70000000, "DT_LOPROC"}, - {0x7fffffff, "DT_HIPROC"}, -} - -func (i DynTag) String() string { return stringName(uint32(i), dtStrings, false) } -func (i DynTag) GoString() string { return stringName(uint32(i), dtStrings, true) } - -// DT_FLAGS values. -type DynFlag int - -const ( - DF_ORIGIN DynFlag = 0x0001 /* Indicates that the object being loaded may - make reference to the - $ORIGIN substitution string */ - DF_SYMBOLIC DynFlag = 0x0002 /* Indicates "symbolic" linking. */ - DF_TEXTREL DynFlag = 0x0004 /* Indicates there may be relocations in non-writable segments. */ - DF_BIND_NOW DynFlag = 0x0008 /* Indicates that the dynamic linker should - process all relocations for the object - containing this entry before transferring - control to the program. */ - DF_STATIC_TLS DynFlag = 0x0010 /* Indicates that the shared object or - executable contains code using a static - thread-local storage scheme. */ -) - -var dflagStrings = []intName{ - {0x0001, "DF_ORIGIN"}, - {0x0002, "DF_SYMBOLIC"}, - {0x0004, "DF_TEXTREL"}, - {0x0008, "DF_BIND_NOW"}, - {0x0010, "DF_STATIC_TLS"}, -} - -func (i DynFlag) String() string { return flagName(uint32(i), dflagStrings, false) } -func (i DynFlag) GoString() string { return flagName(uint32(i), dflagStrings, true) } - -// NType values; used in core files. -type NType int - -const ( - NT_PRSTATUS NType = 1 /* Process status. */ - NT_FPREGSET NType = 2 /* Floating point registers. */ - NT_PRPSINFO NType = 3 /* Process state info. */ -) - -var ntypeStrings = []intName{ - {1, "NT_PRSTATUS"}, - {2, "NT_FPREGSET"}, - {3, "NT_PRPSINFO"}, -} - -func (i NType) String() string { return stringName(uint32(i), ntypeStrings, false) } -func (i NType) GoString() string { return stringName(uint32(i), ntypeStrings, true) } - -/* Symbol Binding - ELFNN_ST_BIND - st_info */ -type SymBind int - -const ( - STB_LOCAL SymBind = 0 /* Local symbol */ - STB_GLOBAL SymBind = 1 /* Global symbol */ - STB_WEAK SymBind = 2 /* like global - lower precedence */ - STB_LOOS SymBind = 10 /* Reserved range for operating system */ - STB_HIOS SymBind = 12 /* specific semantics. */ - STB_LOPROC SymBind = 13 /* reserved range for processor */ - STB_HIPROC SymBind = 15 /* specific semantics. */ -) - -var stbStrings = []intName{ - {0, "STB_LOCAL"}, - {1, "STB_GLOBAL"}, - {2, "STB_WEAK"}, - {10, "STB_LOOS"}, - {12, "STB_HIOS"}, - {13, "STB_LOPROC"}, - {15, "STB_HIPROC"}, -} - -func (i SymBind) String() string { return stringName(uint32(i), stbStrings, false) } -func (i SymBind) GoString() string { return stringName(uint32(i), stbStrings, true) } - -/* Symbol type - ELFNN_ST_TYPE - st_info */ -type SymType int - -const ( - STT_NOTYPE SymType = 0 /* Unspecified type. */ - STT_OBJECT SymType = 1 /* Data object. */ - STT_FUNC SymType = 2 /* Function. */ - STT_SECTION SymType = 3 /* Section. */ - STT_FILE SymType = 4 /* Source file. */ - STT_COMMON SymType = 5 /* Uninitialized common block. */ - STT_TLS SymType = 6 /* TLS object. */ - STT_LOOS SymType = 10 /* Reserved range for operating system */ - STT_HIOS SymType = 12 /* specific semantics. */ - STT_LOPROC SymType = 13 /* reserved range for processor */ - STT_HIPROC SymType = 15 /* specific semantics. */ -) - -var sttStrings = []intName{ - {0, "STT_NOTYPE"}, - {1, "STT_OBJECT"}, - {2, "STT_FUNC"}, - {3, "STT_SECTION"}, - {4, "STT_FILE"}, - {5, "STT_COMMON"}, - {6, "STT_TLS"}, - {10, "STT_LOOS"}, - {12, "STT_HIOS"}, - {13, "STT_LOPROC"}, - {15, "STT_HIPROC"}, -} - -func (i SymType) String() string { return stringName(uint32(i), sttStrings, false) } -func (i SymType) GoString() string { return stringName(uint32(i), sttStrings, true) } - -/* Symbol visibility - ELFNN_ST_VISIBILITY - st_other */ -type SymVis int - -const ( - STV_DEFAULT SymVis = 0x0 /* Default visibility (see binding). */ - STV_INTERNAL SymVis = 0x1 /* Special meaning in relocatable objects. */ - STV_HIDDEN SymVis = 0x2 /* Not visible. */ - STV_PROTECTED SymVis = 0x3 /* Visible but not preemptible. */ -) - -var stvStrings = []intName{ - {0x0, "STV_DEFAULT"}, - {0x1, "STV_INTERNAL"}, - {0x2, "STV_HIDDEN"}, - {0x3, "STV_PROTECTED"}, -} - -func (i SymVis) String() string { return stringName(uint32(i), stvStrings, false) } -func (i SymVis) GoString() string { return stringName(uint32(i), stvStrings, true) } - -/* - * Relocation types. - */ - -// Relocation types for x86-64. -type R_X86_64 int - -const ( - R_X86_64_NONE R_X86_64 = 0 /* No relocation. */ - R_X86_64_64 R_X86_64 = 1 /* Add 64 bit symbol value. */ - R_X86_64_PC32 R_X86_64 = 2 /* PC-relative 32 bit signed sym value. */ - R_X86_64_GOT32 R_X86_64 = 3 /* PC-relative 32 bit GOT offset. */ - R_X86_64_PLT32 R_X86_64 = 4 /* PC-relative 32 bit PLT offset. */ - R_X86_64_COPY R_X86_64 = 5 /* Copy data from shared object. */ - R_X86_64_GLOB_DAT R_X86_64 = 6 /* Set GOT entry to data address. */ - R_X86_64_JMP_SLOT R_X86_64 = 7 /* Set GOT entry to code address. */ - R_X86_64_RELATIVE R_X86_64 = 8 /* Add load address of shared object. */ - R_X86_64_GOTPCREL R_X86_64 = 9 /* Add 32 bit signed pcrel offset to GOT. */ - R_X86_64_32 R_X86_64 = 10 /* Add 32 bit zero extended symbol value */ - R_X86_64_32S R_X86_64 = 11 /* Add 32 bit sign extended symbol value */ - R_X86_64_16 R_X86_64 = 12 /* Add 16 bit zero extended symbol value */ - R_X86_64_PC16 R_X86_64 = 13 /* Add 16 bit signed extended pc relative symbol value */ - R_X86_64_8 R_X86_64 = 14 /* Add 8 bit zero extended symbol value */ - R_X86_64_PC8 R_X86_64 = 15 /* Add 8 bit signed extended pc relative symbol value */ - R_X86_64_DTPMOD64 R_X86_64 = 16 /* ID of module containing symbol */ - R_X86_64_DTPOFF64 R_X86_64 = 17 /* Offset in TLS block */ - R_X86_64_TPOFF64 R_X86_64 = 18 /* Offset in static TLS block */ - R_X86_64_TLSGD R_X86_64 = 19 /* PC relative offset to GD GOT entry */ - R_X86_64_TLSLD R_X86_64 = 20 /* PC relative offset to LD GOT entry */ - R_X86_64_DTPOFF32 R_X86_64 = 21 /* Offset in TLS block */ - R_X86_64_GOTTPOFF R_X86_64 = 22 /* PC relative offset to IE GOT entry */ - R_X86_64_TPOFF32 R_X86_64 = 23 /* Offset in static TLS block */ -) - -var rx86_64Strings = []intName{ - {0, "R_X86_64_NONE"}, - {1, "R_X86_64_64"}, - {2, "R_X86_64_PC32"}, - {3, "R_X86_64_GOT32"}, - {4, "R_X86_64_PLT32"}, - {5, "R_X86_64_COPY"}, - {6, "R_X86_64_GLOB_DAT"}, - {7, "R_X86_64_JMP_SLOT"}, - {8, "R_X86_64_RELATIVE"}, - {9, "R_X86_64_GOTPCREL"}, - {10, "R_X86_64_32"}, - {11, "R_X86_64_32S"}, - {12, "R_X86_64_16"}, - {13, "R_X86_64_PC16"}, - {14, "R_X86_64_8"}, - {15, "R_X86_64_PC8"}, - {16, "R_X86_64_DTPMOD64"}, - {17, "R_X86_64_DTPOFF64"}, - {18, "R_X86_64_TPOFF64"}, - {19, "R_X86_64_TLSGD"}, - {20, "R_X86_64_TLSLD"}, - {21, "R_X86_64_DTPOFF32"}, - {22, "R_X86_64_GOTTPOFF"}, - {23, "R_X86_64_TPOFF32"}, -} - -func (i R_X86_64) String() string { return stringName(uint32(i), rx86_64Strings, false) } -func (i R_X86_64) GoString() string { return stringName(uint32(i), rx86_64Strings, true) } - -// Relocation types for Alpha. -type R_ALPHA int - -const ( - R_ALPHA_NONE R_ALPHA = 0 /* No reloc */ - R_ALPHA_REFLONG R_ALPHA = 1 /* Direct 32 bit */ - R_ALPHA_REFQUAD R_ALPHA = 2 /* Direct 64 bit */ - R_ALPHA_GPREL32 R_ALPHA = 3 /* GP relative 32 bit */ - R_ALPHA_LITERAL R_ALPHA = 4 /* GP relative 16 bit w/optimization */ - R_ALPHA_LITUSE R_ALPHA = 5 /* Optimization hint for LITERAL */ - R_ALPHA_GPDISP R_ALPHA = 6 /* Add displacement to GP */ - R_ALPHA_BRADDR R_ALPHA = 7 /* PC+4 relative 23 bit shifted */ - R_ALPHA_HINT R_ALPHA = 8 /* PC+4 relative 16 bit shifted */ - R_ALPHA_SREL16 R_ALPHA = 9 /* PC relative 16 bit */ - R_ALPHA_SREL32 R_ALPHA = 10 /* PC relative 32 bit */ - R_ALPHA_SREL64 R_ALPHA = 11 /* PC relative 64 bit */ - R_ALPHA_OP_PUSH R_ALPHA = 12 /* OP stack push */ - R_ALPHA_OP_STORE R_ALPHA = 13 /* OP stack pop and store */ - R_ALPHA_OP_PSUB R_ALPHA = 14 /* OP stack subtract */ - R_ALPHA_OP_PRSHIFT R_ALPHA = 15 /* OP stack right shift */ - R_ALPHA_GPVALUE R_ALPHA = 16 - R_ALPHA_GPRELHIGH R_ALPHA = 17 - R_ALPHA_GPRELLOW R_ALPHA = 18 - R_ALPHA_IMMED_GP_16 R_ALPHA = 19 - R_ALPHA_IMMED_GP_HI32 R_ALPHA = 20 - R_ALPHA_IMMED_SCN_HI32 R_ALPHA = 21 - R_ALPHA_IMMED_BR_HI32 R_ALPHA = 22 - R_ALPHA_IMMED_LO32 R_ALPHA = 23 - R_ALPHA_COPY R_ALPHA = 24 /* Copy symbol at runtime */ - R_ALPHA_GLOB_DAT R_ALPHA = 25 /* Create GOT entry */ - R_ALPHA_JMP_SLOT R_ALPHA = 26 /* Create PLT entry */ - R_ALPHA_RELATIVE R_ALPHA = 27 /* Adjust by program base */ -) - -var ralphaStrings = []intName{ - {0, "R_ALPHA_NONE"}, - {1, "R_ALPHA_REFLONG"}, - {2, "R_ALPHA_REFQUAD"}, - {3, "R_ALPHA_GPREL32"}, - {4, "R_ALPHA_LITERAL"}, - {5, "R_ALPHA_LITUSE"}, - {6, "R_ALPHA_GPDISP"}, - {7, "R_ALPHA_BRADDR"}, - {8, "R_ALPHA_HINT"}, - {9, "R_ALPHA_SREL16"}, - {10, "R_ALPHA_SREL32"}, - {11, "R_ALPHA_SREL64"}, - {12, "R_ALPHA_OP_PUSH"}, - {13, "R_ALPHA_OP_STORE"}, - {14, "R_ALPHA_OP_PSUB"}, - {15, "R_ALPHA_OP_PRSHIFT"}, - {16, "R_ALPHA_GPVALUE"}, - {17, "R_ALPHA_GPRELHIGH"}, - {18, "R_ALPHA_GPRELLOW"}, - {19, "R_ALPHA_IMMED_GP_16"}, - {20, "R_ALPHA_IMMED_GP_HI32"}, - {21, "R_ALPHA_IMMED_SCN_HI32"}, - {22, "R_ALPHA_IMMED_BR_HI32"}, - {23, "R_ALPHA_IMMED_LO32"}, - {24, "R_ALPHA_COPY"}, - {25, "R_ALPHA_GLOB_DAT"}, - {26, "R_ALPHA_JMP_SLOT"}, - {27, "R_ALPHA_RELATIVE"}, -} - -func (i R_ALPHA) String() string { return stringName(uint32(i), ralphaStrings, false) } -func (i R_ALPHA) GoString() string { return stringName(uint32(i), ralphaStrings, true) } - -// Relocation types for ARM. -type R_ARM int - -const ( - R_ARM_NONE R_ARM = 0 /* No relocation. */ - R_ARM_PC24 R_ARM = 1 - R_ARM_ABS32 R_ARM = 2 - R_ARM_REL32 R_ARM = 3 - R_ARM_PC13 R_ARM = 4 - R_ARM_ABS16 R_ARM = 5 - R_ARM_ABS12 R_ARM = 6 - R_ARM_THM_ABS5 R_ARM = 7 - R_ARM_ABS8 R_ARM = 8 - R_ARM_SBREL32 R_ARM = 9 - R_ARM_THM_PC22 R_ARM = 10 - R_ARM_THM_PC8 R_ARM = 11 - R_ARM_AMP_VCALL9 R_ARM = 12 - R_ARM_SWI24 R_ARM = 13 - R_ARM_THM_SWI8 R_ARM = 14 - R_ARM_XPC25 R_ARM = 15 - R_ARM_THM_XPC22 R_ARM = 16 - R_ARM_COPY R_ARM = 20 /* Copy data from shared object. */ - R_ARM_GLOB_DAT R_ARM = 21 /* Set GOT entry to data address. */ - R_ARM_JUMP_SLOT R_ARM = 22 /* Set GOT entry to code address. */ - R_ARM_RELATIVE R_ARM = 23 /* Add load address of shared object. */ - R_ARM_GOTOFF R_ARM = 24 /* Add GOT-relative symbol address. */ - R_ARM_GOTPC R_ARM = 25 /* Add PC-relative GOT table address. */ - R_ARM_GOT32 R_ARM = 26 /* Add PC-relative GOT offset. */ - R_ARM_PLT32 R_ARM = 27 /* Add PC-relative PLT offset. */ - R_ARM_GNU_VTENTRY R_ARM = 100 - R_ARM_GNU_VTINHERIT R_ARM = 101 - R_ARM_RSBREL32 R_ARM = 250 - R_ARM_THM_RPC22 R_ARM = 251 - R_ARM_RREL32 R_ARM = 252 - R_ARM_RABS32 R_ARM = 253 - R_ARM_RPC24 R_ARM = 254 - R_ARM_RBASE R_ARM = 255 -) - -var rarmStrings = []intName{ - {0, "R_ARM_NONE"}, - {1, "R_ARM_PC24"}, - {2, "R_ARM_ABS32"}, - {3, "R_ARM_REL32"}, - {4, "R_ARM_PC13"}, - {5, "R_ARM_ABS16"}, - {6, "R_ARM_ABS12"}, - {7, "R_ARM_THM_ABS5"}, - {8, "R_ARM_ABS8"}, - {9, "R_ARM_SBREL32"}, - {10, "R_ARM_THM_PC22"}, - {11, "R_ARM_THM_PC8"}, - {12, "R_ARM_AMP_VCALL9"}, - {13, "R_ARM_SWI24"}, - {14, "R_ARM_THM_SWI8"}, - {15, "R_ARM_XPC25"}, - {16, "R_ARM_THM_XPC22"}, - {20, "R_ARM_COPY"}, - {21, "R_ARM_GLOB_DAT"}, - {22, "R_ARM_JUMP_SLOT"}, - {23, "R_ARM_RELATIVE"}, - {24, "R_ARM_GOTOFF"}, - {25, "R_ARM_GOTPC"}, - {26, "R_ARM_GOT32"}, - {27, "R_ARM_PLT32"}, - {100, "R_ARM_GNU_VTENTRY"}, - {101, "R_ARM_GNU_VTINHERIT"}, - {250, "R_ARM_RSBREL32"}, - {251, "R_ARM_THM_RPC22"}, - {252, "R_ARM_RREL32"}, - {253, "R_ARM_RABS32"}, - {254, "R_ARM_RPC24"}, - {255, "R_ARM_RBASE"}, -} - -func (i R_ARM) String() string { return stringName(uint32(i), rarmStrings, false) } -func (i R_ARM) GoString() string { return stringName(uint32(i), rarmStrings, true) } - -// Relocation types for 386. -type R_386 int - -const ( - R_386_NONE R_386 = 0 /* No relocation. */ - R_386_32 R_386 = 1 /* Add symbol value. */ - R_386_PC32 R_386 = 2 /* Add PC-relative symbol value. */ - R_386_GOT32 R_386 = 3 /* Add PC-relative GOT offset. */ - R_386_PLT32 R_386 = 4 /* Add PC-relative PLT offset. */ - R_386_COPY R_386 = 5 /* Copy data from shared object. */ - R_386_GLOB_DAT R_386 = 6 /* Set GOT entry to data address. */ - R_386_JMP_SLOT R_386 = 7 /* Set GOT entry to code address. */ - R_386_RELATIVE R_386 = 8 /* Add load address of shared object. */ - R_386_GOTOFF R_386 = 9 /* Add GOT-relative symbol address. */ - R_386_GOTPC R_386 = 10 /* Add PC-relative GOT table address. */ - R_386_TLS_TPOFF R_386 = 14 /* Negative offset in static TLS block */ - R_386_TLS_IE R_386 = 15 /* Absolute address of GOT for -ve static TLS */ - R_386_TLS_GOTIE R_386 = 16 /* GOT entry for negative static TLS block */ - R_386_TLS_LE R_386 = 17 /* Negative offset relative to static TLS */ - R_386_TLS_GD R_386 = 18 /* 32 bit offset to GOT (index,off) pair */ - R_386_TLS_LDM R_386 = 19 /* 32 bit offset to GOT (index,zero) pair */ - R_386_TLS_GD_32 R_386 = 24 /* 32 bit offset to GOT (index,off) pair */ - R_386_TLS_GD_PUSH R_386 = 25 /* pushl instruction for Sun ABI GD sequence */ - R_386_TLS_GD_CALL R_386 = 26 /* call instruction for Sun ABI GD sequence */ - R_386_TLS_GD_POP R_386 = 27 /* popl instruction for Sun ABI GD sequence */ - R_386_TLS_LDM_32 R_386 = 28 /* 32 bit offset to GOT (index,zero) pair */ - R_386_TLS_LDM_PUSH R_386 = 29 /* pushl instruction for Sun ABI LD sequence */ - R_386_TLS_LDM_CALL R_386 = 30 /* call instruction for Sun ABI LD sequence */ - R_386_TLS_LDM_POP R_386 = 31 /* popl instruction for Sun ABI LD sequence */ - R_386_TLS_LDO_32 R_386 = 32 /* 32 bit offset from start of TLS block */ - R_386_TLS_IE_32 R_386 = 33 /* 32 bit offset to GOT static TLS offset entry */ - R_386_TLS_LE_32 R_386 = 34 /* 32 bit offset within static TLS block */ - R_386_TLS_DTPMOD32 R_386 = 35 /* GOT entry containing TLS index */ - R_386_TLS_DTPOFF32 R_386 = 36 /* GOT entry containing TLS offset */ - R_386_TLS_TPOFF32 R_386 = 37 /* GOT entry of -ve static TLS offset */ -) - -var r386Strings = []intName{ - {0, "R_386_NONE"}, - {1, "R_386_32"}, - {2, "R_386_PC32"}, - {3, "R_386_GOT32"}, - {4, "R_386_PLT32"}, - {5, "R_386_COPY"}, - {6, "R_386_GLOB_DAT"}, - {7, "R_386_JMP_SLOT"}, - {8, "R_386_RELATIVE"}, - {9, "R_386_GOTOFF"}, - {10, "R_386_GOTPC"}, - {14, "R_386_TLS_TPOFF"}, - {15, "R_386_TLS_IE"}, - {16, "R_386_TLS_GOTIE"}, - {17, "R_386_TLS_LE"}, - {18, "R_386_TLS_GD"}, - {19, "R_386_TLS_LDM"}, - {24, "R_386_TLS_GD_32"}, - {25, "R_386_TLS_GD_PUSH"}, - {26, "R_386_TLS_GD_CALL"}, - {27, "R_386_TLS_GD_POP"}, - {28, "R_386_TLS_LDM_32"}, - {29, "R_386_TLS_LDM_PUSH"}, - {30, "R_386_TLS_LDM_CALL"}, - {31, "R_386_TLS_LDM_POP"}, - {32, "R_386_TLS_LDO_32"}, - {33, "R_386_TLS_IE_32"}, - {34, "R_386_TLS_LE_32"}, - {35, "R_386_TLS_DTPMOD32"}, - {36, "R_386_TLS_DTPOFF32"}, - {37, "R_386_TLS_TPOFF32"}, -} - -func (i R_386) String() string { return stringName(uint32(i), r386Strings, false) } -func (i R_386) GoString() string { return stringName(uint32(i), r386Strings, true) } - -// Relocation types for PowerPC. -type R_PPC int - -const ( - R_PPC_NONE R_PPC = 0 /* No relocation. */ - R_PPC_ADDR32 R_PPC = 1 - R_PPC_ADDR24 R_PPC = 2 - R_PPC_ADDR16 R_PPC = 3 - R_PPC_ADDR16_LO R_PPC = 4 - R_PPC_ADDR16_HI R_PPC = 5 - R_PPC_ADDR16_HA R_PPC = 6 - R_PPC_ADDR14 R_PPC = 7 - R_PPC_ADDR14_BRTAKEN R_PPC = 8 - R_PPC_ADDR14_BRNTAKEN R_PPC = 9 - R_PPC_REL24 R_PPC = 10 - R_PPC_REL14 R_PPC = 11 - R_PPC_REL14_BRTAKEN R_PPC = 12 - R_PPC_REL14_BRNTAKEN R_PPC = 13 - R_PPC_GOT16 R_PPC = 14 - R_PPC_GOT16_LO R_PPC = 15 - R_PPC_GOT16_HI R_PPC = 16 - R_PPC_GOT16_HA R_PPC = 17 - R_PPC_PLTREL24 R_PPC = 18 - R_PPC_COPY R_PPC = 19 - R_PPC_GLOB_DAT R_PPC = 20 - R_PPC_JMP_SLOT R_PPC = 21 - R_PPC_RELATIVE R_PPC = 22 - R_PPC_LOCAL24PC R_PPC = 23 - R_PPC_UADDR32 R_PPC = 24 - R_PPC_UADDR16 R_PPC = 25 - R_PPC_REL32 R_PPC = 26 - R_PPC_PLT32 R_PPC = 27 - R_PPC_PLTREL32 R_PPC = 28 - R_PPC_PLT16_LO R_PPC = 29 - R_PPC_PLT16_HI R_PPC = 30 - R_PPC_PLT16_HA R_PPC = 31 - R_PPC_SDAREL16 R_PPC = 32 - R_PPC_SECTOFF R_PPC = 33 - R_PPC_SECTOFF_LO R_PPC = 34 - R_PPC_SECTOFF_HI R_PPC = 35 - R_PPC_SECTOFF_HA R_PPC = 36 - R_PPC_TLS R_PPC = 67 - R_PPC_DTPMOD32 R_PPC = 68 - R_PPC_TPREL16 R_PPC = 69 - R_PPC_TPREL16_LO R_PPC = 70 - R_PPC_TPREL16_HI R_PPC = 71 - R_PPC_TPREL16_HA R_PPC = 72 - R_PPC_TPREL32 R_PPC = 73 - R_PPC_DTPREL16 R_PPC = 74 - R_PPC_DTPREL16_LO R_PPC = 75 - R_PPC_DTPREL16_HI R_PPC = 76 - R_PPC_DTPREL16_HA R_PPC = 77 - R_PPC_DTPREL32 R_PPC = 78 - R_PPC_GOT_TLSGD16 R_PPC = 79 - R_PPC_GOT_TLSGD16_LO R_PPC = 80 - R_PPC_GOT_TLSGD16_HI R_PPC = 81 - R_PPC_GOT_TLSGD16_HA R_PPC = 82 - R_PPC_GOT_TLSLD16 R_PPC = 83 - R_PPC_GOT_TLSLD16_LO R_PPC = 84 - R_PPC_GOT_TLSLD16_HI R_PPC = 85 - R_PPC_GOT_TLSLD16_HA R_PPC = 86 - R_PPC_GOT_TPREL16 R_PPC = 87 - R_PPC_GOT_TPREL16_LO R_PPC = 88 - R_PPC_GOT_TPREL16_HI R_PPC = 89 - R_PPC_GOT_TPREL16_HA R_PPC = 90 - R_PPC_EMB_NADDR32 R_PPC = 101 - R_PPC_EMB_NADDR16 R_PPC = 102 - R_PPC_EMB_NADDR16_LO R_PPC = 103 - R_PPC_EMB_NADDR16_HI R_PPC = 104 - R_PPC_EMB_NADDR16_HA R_PPC = 105 - R_PPC_EMB_SDAI16 R_PPC = 106 - R_PPC_EMB_SDA2I16 R_PPC = 107 - R_PPC_EMB_SDA2REL R_PPC = 108 - R_PPC_EMB_SDA21 R_PPC = 109 - R_PPC_EMB_MRKREF R_PPC = 110 - R_PPC_EMB_RELSEC16 R_PPC = 111 - R_PPC_EMB_RELST_LO R_PPC = 112 - R_PPC_EMB_RELST_HI R_PPC = 113 - R_PPC_EMB_RELST_HA R_PPC = 114 - R_PPC_EMB_BIT_FLD R_PPC = 115 - R_PPC_EMB_RELSDA R_PPC = 116 -) - -var rppcStrings = []intName{ - {0, "R_PPC_NONE"}, - {1, "R_PPC_ADDR32"}, - {2, "R_PPC_ADDR24"}, - {3, "R_PPC_ADDR16"}, - {4, "R_PPC_ADDR16_LO"}, - {5, "R_PPC_ADDR16_HI"}, - {6, "R_PPC_ADDR16_HA"}, - {7, "R_PPC_ADDR14"}, - {8, "R_PPC_ADDR14_BRTAKEN"}, - {9, "R_PPC_ADDR14_BRNTAKEN"}, - {10, "R_PPC_REL24"}, - {11, "R_PPC_REL14"}, - {12, "R_PPC_REL14_BRTAKEN"}, - {13, "R_PPC_REL14_BRNTAKEN"}, - {14, "R_PPC_GOT16"}, - {15, "R_PPC_GOT16_LO"}, - {16, "R_PPC_GOT16_HI"}, - {17, "R_PPC_GOT16_HA"}, - {18, "R_PPC_PLTREL24"}, - {19, "R_PPC_COPY"}, - {20, "R_PPC_GLOB_DAT"}, - {21, "R_PPC_JMP_SLOT"}, - {22, "R_PPC_RELATIVE"}, - {23, "R_PPC_LOCAL24PC"}, - {24, "R_PPC_UADDR32"}, - {25, "R_PPC_UADDR16"}, - {26, "R_PPC_REL32"}, - {27, "R_PPC_PLT32"}, - {28, "R_PPC_PLTREL32"}, - {29, "R_PPC_PLT16_LO"}, - {30, "R_PPC_PLT16_HI"}, - {31, "R_PPC_PLT16_HA"}, - {32, "R_PPC_SDAREL16"}, - {33, "R_PPC_SECTOFF"}, - {34, "R_PPC_SECTOFF_LO"}, - {35, "R_PPC_SECTOFF_HI"}, - {36, "R_PPC_SECTOFF_HA"}, - - {67, "R_PPC_TLS"}, - {68, "R_PPC_DTPMOD32"}, - {69, "R_PPC_TPREL16"}, - {70, "R_PPC_TPREL16_LO"}, - {71, "R_PPC_TPREL16_HI"}, - {72, "R_PPC_TPREL16_HA"}, - {73, "R_PPC_TPREL32"}, - {74, "R_PPC_DTPREL16"}, - {75, "R_PPC_DTPREL16_LO"}, - {76, "R_PPC_DTPREL16_HI"}, - {77, "R_PPC_DTPREL16_HA"}, - {78, "R_PPC_DTPREL32"}, - {79, "R_PPC_GOT_TLSGD16"}, - {80, "R_PPC_GOT_TLSGD16_LO"}, - {81, "R_PPC_GOT_TLSGD16_HI"}, - {82, "R_PPC_GOT_TLSGD16_HA"}, - {83, "R_PPC_GOT_TLSLD16"}, - {84, "R_PPC_GOT_TLSLD16_LO"}, - {85, "R_PPC_GOT_TLSLD16_HI"}, - {86, "R_PPC_GOT_TLSLD16_HA"}, - {87, "R_PPC_GOT_TPREL16"}, - {88, "R_PPC_GOT_TPREL16_LO"}, - {89, "R_PPC_GOT_TPREL16_HI"}, - {90, "R_PPC_GOT_TPREL16_HA"}, - - {101, "R_PPC_EMB_NADDR32"}, - {102, "R_PPC_EMB_NADDR16"}, - {103, "R_PPC_EMB_NADDR16_LO"}, - {104, "R_PPC_EMB_NADDR16_HI"}, - {105, "R_PPC_EMB_NADDR16_HA"}, - {106, "R_PPC_EMB_SDAI16"}, - {107, "R_PPC_EMB_SDA2I16"}, - {108, "R_PPC_EMB_SDA2REL"}, - {109, "R_PPC_EMB_SDA21"}, - {110, "R_PPC_EMB_MRKREF"}, - {111, "R_PPC_EMB_RELSEC16"}, - {112, "R_PPC_EMB_RELST_LO"}, - {113, "R_PPC_EMB_RELST_HI"}, - {114, "R_PPC_EMB_RELST_HA"}, - {115, "R_PPC_EMB_BIT_FLD"}, - {116, "R_PPC_EMB_RELSDA"}, -} - -func (i R_PPC) String() string { return stringName(uint32(i), rppcStrings, false) } -func (i R_PPC) GoString() string { return stringName(uint32(i), rppcStrings, true) } - -// Relocation types for SPARC. -type R_SPARC int - -const ( - R_SPARC_NONE R_SPARC = 0 - R_SPARC_8 R_SPARC = 1 - R_SPARC_16 R_SPARC = 2 - R_SPARC_32 R_SPARC = 3 - R_SPARC_DISP8 R_SPARC = 4 - R_SPARC_DISP16 R_SPARC = 5 - R_SPARC_DISP32 R_SPARC = 6 - R_SPARC_WDISP30 R_SPARC = 7 - R_SPARC_WDISP22 R_SPARC = 8 - R_SPARC_HI22 R_SPARC = 9 - R_SPARC_22 R_SPARC = 10 - R_SPARC_13 R_SPARC = 11 - R_SPARC_LO10 R_SPARC = 12 - R_SPARC_GOT10 R_SPARC = 13 - R_SPARC_GOT13 R_SPARC = 14 - R_SPARC_GOT22 R_SPARC = 15 - R_SPARC_PC10 R_SPARC = 16 - R_SPARC_PC22 R_SPARC = 17 - R_SPARC_WPLT30 R_SPARC = 18 - R_SPARC_COPY R_SPARC = 19 - R_SPARC_GLOB_DAT R_SPARC = 20 - R_SPARC_JMP_SLOT R_SPARC = 21 - R_SPARC_RELATIVE R_SPARC = 22 - R_SPARC_UA32 R_SPARC = 23 - R_SPARC_PLT32 R_SPARC = 24 - R_SPARC_HIPLT22 R_SPARC = 25 - R_SPARC_LOPLT10 R_SPARC = 26 - R_SPARC_PCPLT32 R_SPARC = 27 - R_SPARC_PCPLT22 R_SPARC = 28 - R_SPARC_PCPLT10 R_SPARC = 29 - R_SPARC_10 R_SPARC = 30 - R_SPARC_11 R_SPARC = 31 - R_SPARC_64 R_SPARC = 32 - R_SPARC_OLO10 R_SPARC = 33 - R_SPARC_HH22 R_SPARC = 34 - R_SPARC_HM10 R_SPARC = 35 - R_SPARC_LM22 R_SPARC = 36 - R_SPARC_PC_HH22 R_SPARC = 37 - R_SPARC_PC_HM10 R_SPARC = 38 - R_SPARC_PC_LM22 R_SPARC = 39 - R_SPARC_WDISP16 R_SPARC = 40 - R_SPARC_WDISP19 R_SPARC = 41 - R_SPARC_GLOB_JMP R_SPARC = 42 - R_SPARC_7 R_SPARC = 43 - R_SPARC_5 R_SPARC = 44 - R_SPARC_6 R_SPARC = 45 - R_SPARC_DISP64 R_SPARC = 46 - R_SPARC_PLT64 R_SPARC = 47 - R_SPARC_HIX22 R_SPARC = 48 - R_SPARC_LOX10 R_SPARC = 49 - R_SPARC_H44 R_SPARC = 50 - R_SPARC_M44 R_SPARC = 51 - R_SPARC_L44 R_SPARC = 52 - R_SPARC_REGISTER R_SPARC = 53 - R_SPARC_UA64 R_SPARC = 54 - R_SPARC_UA16 R_SPARC = 55 -) - -var rsparcStrings = []intName{ - {0, "R_SPARC_NONE"}, - {1, "R_SPARC_8"}, - {2, "R_SPARC_16"}, - {3, "R_SPARC_32"}, - {4, "R_SPARC_DISP8"}, - {5, "R_SPARC_DISP16"}, - {6, "R_SPARC_DISP32"}, - {7, "R_SPARC_WDISP30"}, - {8, "R_SPARC_WDISP22"}, - {9, "R_SPARC_HI22"}, - {10, "R_SPARC_22"}, - {11, "R_SPARC_13"}, - {12, "R_SPARC_LO10"}, - {13, "R_SPARC_GOT10"}, - {14, "R_SPARC_GOT13"}, - {15, "R_SPARC_GOT22"}, - {16, "R_SPARC_PC10"}, - {17, "R_SPARC_PC22"}, - {18, "R_SPARC_WPLT30"}, - {19, "R_SPARC_COPY"}, - {20, "R_SPARC_GLOB_DAT"}, - {21, "R_SPARC_JMP_SLOT"}, - {22, "R_SPARC_RELATIVE"}, - {23, "R_SPARC_UA32"}, - {24, "R_SPARC_PLT32"}, - {25, "R_SPARC_HIPLT22"}, - {26, "R_SPARC_LOPLT10"}, - {27, "R_SPARC_PCPLT32"}, - {28, "R_SPARC_PCPLT22"}, - {29, "R_SPARC_PCPLT10"}, - {30, "R_SPARC_10"}, - {31, "R_SPARC_11"}, - {32, "R_SPARC_64"}, - {33, "R_SPARC_OLO10"}, - {34, "R_SPARC_HH22"}, - {35, "R_SPARC_HM10"}, - {36, "R_SPARC_LM22"}, - {37, "R_SPARC_PC_HH22"}, - {38, "R_SPARC_PC_HM10"}, - {39, "R_SPARC_PC_LM22"}, - {40, "R_SPARC_WDISP16"}, - {41, "R_SPARC_WDISP19"}, - {42, "R_SPARC_GLOB_JMP"}, - {43, "R_SPARC_7"}, - {44, "R_SPARC_5"}, - {45, "R_SPARC_6"}, - {46, "R_SPARC_DISP64"}, - {47, "R_SPARC_PLT64"}, - {48, "R_SPARC_HIX22"}, - {49, "R_SPARC_LOX10"}, - {50, "R_SPARC_H44"}, - {51, "R_SPARC_M44"}, - {52, "R_SPARC_L44"}, - {53, "R_SPARC_REGISTER"}, - {54, "R_SPARC_UA64"}, - {55, "R_SPARC_UA16"}, -} - -func (i R_SPARC) String() string { return stringName(uint32(i), rsparcStrings, false) } -func (i R_SPARC) GoString() string { return stringName(uint32(i), rsparcStrings, true) } - -// Magic number for the elf trampoline, chosen wisely to be an immediate value. -const ARM_MAGIC_TRAMP_NUMBER = 0x5c000003 - -// ELF32 File header. -type Header32 struct { - Ident [EI_NIDENT]byte /* File identification. */ - Type uint16 /* File type. */ - Machine uint16 /* Machine architecture. */ - Version uint32 /* ELF format version. */ - Entry uint32 /* Entry point. */ - Phoff uint32 /* Program header file offset. */ - Shoff uint32 /* Section header file offset. */ - Flags uint32 /* Architecture-specific flags. */ - Ehsize uint16 /* Size of ELF header in bytes. */ - Phentsize uint16 /* Size of program header entry. */ - Phnum uint16 /* Number of program header entries. */ - Shentsize uint16 /* Size of section header entry. */ - Shnum uint16 /* Number of section header entries. */ - Shstrndx uint16 /* Section name strings section. */ -} - -// ELF32 Section header. -type Section32 struct { - Name uint32 /* Section name (index into the section header string table). */ - Type uint32 /* Section type. */ - Flags uint32 /* Section flags. */ - Addr uint32 /* Address in memory image. */ - Off uint32 /* Offset in file. */ - Size uint32 /* Size in bytes. */ - Link uint32 /* Index of a related section. */ - Info uint32 /* Depends on section type. */ - Addralign uint32 /* Alignment in bytes. */ - Entsize uint32 /* Size of each entry in section. */ -} - -// ELF32 Program header. -type Prog32 struct { - Type uint32 /* Entry type. */ - Off uint32 /* File offset of contents. */ - Vaddr uint32 /* Virtual address in memory image. */ - Paddr uint32 /* Physical address (not used). */ - Filesz uint32 /* Size of contents in file. */ - Memsz uint32 /* Size of contents in memory. */ - Flags uint32 /* Access permission flags. */ - Align uint32 /* Alignment in memory and file. */ -} - -// ELF32 Dynamic structure. The ".dynamic" section contains an array of them. -type Dyn32 struct { - Tag int32 /* Entry type. */ - Val uint32 /* Integer/Address value. */ -} - -/* - * Relocation entries. - */ - -// ELF32 Relocations that don't need an addend field. -type Rel32 struct { - Off uint32 /* Location to be relocated. */ - Info uint32 /* Relocation type and symbol index. */ -} - -// ELF32 Relocations that need an addend field. -type Rela32 struct { - Off uint32 /* Location to be relocated. */ - Info uint32 /* Relocation type and symbol index. */ - Addend int32 /* Addend. */ -} - -func R_SYM32(info uint32) uint32 { return uint32(info >> 8) } -func R_TYPE32(info uint32) uint32 { return uint32(info & 0xff) } -func R_INFO32(sym, typ uint32) uint32 { return sym<<8 | typ } - -// ELF32 Symbol. -type Sym32 struct { - Name uint32 - Value uint32 - Size uint32 - Info uint8 - Other uint8 - Shndx uint16 -} - -const Sym32Size = 16 - -func ST_BIND(info uint8) SymBind { return SymBind(info >> 4) } -func ST_TYPE(info uint8) SymType { return SymType(info & 0xF) } -func ST_INFO(bind SymBind, typ SymType) uint8 { - return uint8(bind)<<4 | uint8(typ)&0xf -} -func ST_VISIBILITY(other uint8) SymVis { return SymVis(other & 3) } - -/* - * ELF64 - */ - -// ELF64 file header. -type Header64 struct { - Ident [EI_NIDENT]byte /* File identification. */ - Type uint16 /* File type. */ - Machine uint16 /* Machine architecture. */ - Version uint32 /* ELF format version. */ - Entry uint64 /* Entry point. */ - Phoff uint64 /* Program header file offset. */ - Shoff uint64 /* Section header file offset. */ - Flags uint32 /* Architecture-specific flags. */ - Ehsize uint16 /* Size of ELF header in bytes. */ - Phentsize uint16 /* Size of program header entry. */ - Phnum uint16 /* Number of program header entries. */ - Shentsize uint16 /* Size of section header entry. */ - Shnum uint16 /* Number of section header entries. */ - Shstrndx uint16 /* Section name strings section. */ -} - -// ELF64 Section header. -type Section64 struct { - Name uint32 /* Section name (index into the section header string table). */ - Type uint32 /* Section type. */ - Flags uint64 /* Section flags. */ - Addr uint64 /* Address in memory image. */ - Off uint64 /* Offset in file. */ - Size uint64 /* Size in bytes. */ - Link uint32 /* Index of a related section. */ - Info uint32 /* Depends on section type. */ - Addralign uint64 /* Alignment in bytes. */ - Entsize uint64 /* Size of each entry in section. */ -} - -// ELF64 Program header. -type Prog64 struct { - Type uint32 /* Entry type. */ - Flags uint32 /* Access permission flags. */ - Off uint64 /* File offset of contents. */ - Vaddr uint64 /* Virtual address in memory image. */ - Paddr uint64 /* Physical address (not used). */ - Filesz uint64 /* Size of contents in file. */ - Memsz uint64 /* Size of contents in memory. */ - Align uint64 /* Alignment in memory and file. */ -} - -// ELF64 Dynamic structure. The ".dynamic" section contains an array of them. -type Dyn64 struct { - Tag int64 /* Entry type. */ - Val uint64 /* Integer/address value */ -} - -/* - * Relocation entries. - */ - -/* ELF64 relocations that don't need an addend field. */ -type Rel64 struct { - Off uint64 /* Location to be relocated. */ - Info uint64 /* Relocation type and symbol index. */ -} - -/* ELF64 relocations that need an addend field. */ -type Rela64 struct { - Off uint64 /* Location to be relocated. */ - Info uint64 /* Relocation type and symbol index. */ - Addend int64 /* Addend. */ -} - -func R_SYM64(info uint64) uint32 { return uint32(info >> 32) } -func R_TYPE64(info uint64) uint32 { return uint32(info) } -func R_INFO(sym, typ uint32) uint64 { return uint64(sym)<<32 | uint64(typ) } - -// ELF64 symbol table entries. -type Sym64 struct { - Name uint32 /* String table index of name. */ - Info uint8 /* Type and binding information. */ - Other uint8 /* Reserved (not used). */ - Shndx uint16 /* Section index of symbol. */ - Value uint64 /* Symbol value. */ - Size uint64 /* Size of associated object. */ -} - -const Sym64Size = 24 - -type intName struct { - i uint32 - s string -} - -func stringName(i uint32, names []intName, goSyntax bool) string { - for _, n := range names { - if n.i == i { - if goSyntax { - return "elf." + n.s - } - return n.s - } - } - - // second pass - look for smaller to add with. - // assume sorted already - for j := len(names) - 1; j >= 0; j-- { - n := names[j] - if n.i < i { - s := n.s - if goSyntax { - s = "elf." + s - } - return s + "+" + strconv.FormatUint(uint64(i-n.i), 10) - } - } - - return strconv.FormatUint(uint64(i), 10) -} - -func flagName(i uint32, names []intName, goSyntax bool) string { - s := "" - for _, n := range names { - if n.i&i == n.i { - if len(s) > 0 { - s += "+" - } - if goSyntax { - s += "elf." - } - s += n.s - i -= n.i - } - } - if len(s) == 0 { - return "0x" + strconv.FormatUint(uint64(i), 16) - } - if i != 0 { - s += "+0x" + strconv.FormatUint(uint64(i), 16) - } - return s -} diff --git a/src/pkg/debug/elf/elf_test.go b/src/pkg/debug/elf/elf_test.go deleted file mode 100644 index e3c51bb71..000000000 --- a/src/pkg/debug/elf/elf_test.go +++ /dev/null @@ -1,49 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package elf - -import ( - "fmt" - "testing" -) - -type nameTest struct { - val interface{} - str string -} - -var nameTests = []nameTest{ - {ELFOSABI_LINUX, "ELFOSABI_LINUX"}, - {ET_EXEC, "ET_EXEC"}, - {EM_860, "EM_860"}, - {SHN_LOPROC, "SHN_LOPROC"}, - {SHT_PROGBITS, "SHT_PROGBITS"}, - {SHF_MERGE + SHF_TLS, "SHF_MERGE+SHF_TLS"}, - {PT_LOAD, "PT_LOAD"}, - {PF_W + PF_R + 0x50, "PF_W+PF_R+0x50"}, - {DT_SYMBOLIC, "DT_SYMBOLIC"}, - {DF_BIND_NOW, "DF_BIND_NOW"}, - {NT_FPREGSET, "NT_FPREGSET"}, - {STB_GLOBAL, "STB_GLOBAL"}, - {STT_COMMON, "STT_COMMON"}, - {STV_HIDDEN, "STV_HIDDEN"}, - {R_X86_64_PC32, "R_X86_64_PC32"}, - {R_ALPHA_OP_PUSH, "R_ALPHA_OP_PUSH"}, - {R_ARM_THM_ABS5, "R_ARM_THM_ABS5"}, - {R_386_GOT32, "R_386_GOT32"}, - {R_PPC_GOT16_HI, "R_PPC_GOT16_HI"}, - {R_SPARC_GOT22, "R_SPARC_GOT22"}, - {ET_LOOS + 5, "ET_LOOS+5"}, - {ProgFlag(0x50), "0x50"}, -} - -func TestNames(t *testing.T) { - for i, tt := range nameTests { - s := fmt.Sprint(tt.val) - if s != tt.str { - t.Errorf("#%d: Sprint(%d) = %q, want %q", i, tt.val, s, tt.str) - } - } -} diff --git a/src/pkg/debug/elf/file.go b/src/pkg/debug/elf/file.go deleted file mode 100644 index 423932fe0..000000000 --- a/src/pkg/debug/elf/file.go +++ /dev/null @@ -1,881 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package elf implements access to ELF object files. -package elf - -import ( - "bytes" - "debug/dwarf" - "encoding/binary" - "errors" - "fmt" - "io" - "os" -) - -// TODO: error reporting detail - -/* - * Internal ELF representation - */ - -// A FileHeader represents an ELF file header. -type FileHeader struct { - Class Class - Data Data - Version Version - OSABI OSABI - ABIVersion uint8 - ByteOrder binary.ByteOrder - Type Type - Machine Machine - Entry uint64 -} - -// A File represents an open ELF file. -type File struct { - FileHeader - Sections []*Section - Progs []*Prog - closer io.Closer - gnuNeed []verneed - gnuVersym []byte -} - -// A SectionHeader represents a single ELF section header. -type SectionHeader struct { - Name string - Type SectionType - Flags SectionFlag - Addr uint64 - Offset uint64 - Size uint64 - Link uint32 - Info uint32 - Addralign uint64 - Entsize uint64 -} - -// A Section represents a single section in an ELF file. -type Section struct { - SectionHeader - - // Embed ReaderAt for ReadAt method. - // Do not embed SectionReader directly - // to avoid having Read and Seek. - // If a client wants Read and Seek it must use - // Open() to avoid fighting over the seek offset - // with other clients. - io.ReaderAt - sr *io.SectionReader -} - -// Data reads and returns the contents of the ELF section. -func (s *Section) Data() ([]byte, error) { - dat := make([]byte, s.sr.Size()) - n, err := s.sr.ReadAt(dat, 0) - if n == len(dat) { - err = nil - } - return dat[0:n], err -} - -// stringTable reads and returns the string table given by the -// specified link value. -func (f *File) stringTable(link uint32) ([]byte, error) { - if link <= 0 || link >= uint32(len(f.Sections)) { - return nil, errors.New("section has invalid string table link") - } - return f.Sections[link].Data() -} - -// Open returns a new ReadSeeker reading the ELF section. -func (s *Section) Open() io.ReadSeeker { return io.NewSectionReader(s.sr, 0, 1<<63-1) } - -// A ProgHeader represents a single ELF program header. -type ProgHeader struct { - Type ProgType - Flags ProgFlag - Off uint64 - Vaddr uint64 - Paddr uint64 - Filesz uint64 - Memsz uint64 - Align uint64 -} - -// A Prog represents a single ELF program header in an ELF binary. -type Prog struct { - ProgHeader - - // Embed ReaderAt for ReadAt method. - // Do not embed SectionReader directly - // to avoid having Read and Seek. - // If a client wants Read and Seek it must use - // Open() to avoid fighting over the seek offset - // with other clients. - io.ReaderAt - sr *io.SectionReader -} - -// Open returns a new ReadSeeker reading the ELF program body. -func (p *Prog) Open() io.ReadSeeker { return io.NewSectionReader(p.sr, 0, 1<<63-1) } - -// A Symbol represents an entry in an ELF symbol table section. -type Symbol struct { - Name string - Info, Other byte - Section SectionIndex - Value, Size uint64 -} - -/* - * ELF reader - */ - -type FormatError struct { - off int64 - msg string - val interface{} -} - -func (e *FormatError) Error() string { - msg := e.msg - if e.val != nil { - msg += fmt.Sprintf(" '%v' ", e.val) - } - msg += fmt.Sprintf("in record at byte %#x", e.off) - return msg -} - -// Open opens the named file using os.Open and prepares it for use as an ELF binary. -func Open(name string) (*File, error) { - f, err := os.Open(name) - if err != nil { - return nil, err - } - ff, err := NewFile(f) - if err != nil { - f.Close() - return nil, err - } - ff.closer = f - return ff, nil -} - -// Close closes the File. -// If the File was created using NewFile directly instead of Open, -// Close has no effect. -func (f *File) Close() error { - var err error - if f.closer != nil { - err = f.closer.Close() - f.closer = nil - } - return err -} - -// SectionByType returns the first section in f with the -// given type, or nil if there is no such section. -func (f *File) SectionByType(typ SectionType) *Section { - for _, s := range f.Sections { - if s.Type == typ { - return s - } - } - return nil -} - -// NewFile creates a new File for accessing an ELF binary in an underlying reader. -// The ELF binary is expected to start at position 0 in the ReaderAt. -func NewFile(r io.ReaderAt) (*File, error) { - sr := io.NewSectionReader(r, 0, 1<<63-1) - // Read and decode ELF identifier - var ident [16]uint8 - if _, err := r.ReadAt(ident[0:], 0); err != nil { - return nil, err - } - if ident[0] != '\x7f' || ident[1] != 'E' || ident[2] != 'L' || ident[3] != 'F' { - return nil, &FormatError{0, "bad magic number", ident[0:4]} - } - - f := new(File) - f.Class = Class(ident[EI_CLASS]) - switch f.Class { - case ELFCLASS32: - case ELFCLASS64: - // ok - default: - return nil, &FormatError{0, "unknown ELF class", f.Class} - } - - f.Data = Data(ident[EI_DATA]) - switch f.Data { - case ELFDATA2LSB: - f.ByteOrder = binary.LittleEndian - case ELFDATA2MSB: - f.ByteOrder = binary.BigEndian - default: - return nil, &FormatError{0, "unknown ELF data encoding", f.Data} - } - - f.Version = Version(ident[EI_VERSION]) - if f.Version != EV_CURRENT { - return nil, &FormatError{0, "unknown ELF version", f.Version} - } - - f.OSABI = OSABI(ident[EI_OSABI]) - f.ABIVersion = ident[EI_ABIVERSION] - - // Read ELF file header - var phoff int64 - var phentsize, phnum int - var shoff int64 - var shentsize, shnum, shstrndx int - shstrndx = -1 - switch f.Class { - case ELFCLASS32: - hdr := new(Header32) - sr.Seek(0, os.SEEK_SET) - if err := binary.Read(sr, f.ByteOrder, hdr); err != nil { - return nil, err - } - f.Type = Type(hdr.Type) - f.Machine = Machine(hdr.Machine) - f.Entry = uint64(hdr.Entry) - if v := Version(hdr.Version); v != f.Version { - return nil, &FormatError{0, "mismatched ELF version", v} - } - phoff = int64(hdr.Phoff) - phentsize = int(hdr.Phentsize) - phnum = int(hdr.Phnum) - shoff = int64(hdr.Shoff) - shentsize = int(hdr.Shentsize) - shnum = int(hdr.Shnum) - shstrndx = int(hdr.Shstrndx) - case ELFCLASS64: - hdr := new(Header64) - sr.Seek(0, os.SEEK_SET) - if err := binary.Read(sr, f.ByteOrder, hdr); err != nil { - return nil, err - } - f.Type = Type(hdr.Type) - f.Machine = Machine(hdr.Machine) - f.Entry = uint64(hdr.Entry) - if v := Version(hdr.Version); v != f.Version { - return nil, &FormatError{0, "mismatched ELF version", v} - } - phoff = int64(hdr.Phoff) - phentsize = int(hdr.Phentsize) - phnum = int(hdr.Phnum) - shoff = int64(hdr.Shoff) - shentsize = int(hdr.Shentsize) - shnum = int(hdr.Shnum) - shstrndx = int(hdr.Shstrndx) - } - - if shnum > 0 && shoff > 0 && (shstrndx < 0 || shstrndx >= shnum) { - return nil, &FormatError{0, "invalid ELF shstrndx", shstrndx} - } - - // Read program headers - f.Progs = make([]*Prog, phnum) - for i := 0; i < phnum; i++ { - off := phoff + int64(i)*int64(phentsize) - sr.Seek(off, os.SEEK_SET) - p := new(Prog) - switch f.Class { - case ELFCLASS32: - ph := new(Prog32) - if err := binary.Read(sr, f.ByteOrder, ph); err != nil { - return nil, err - } - p.ProgHeader = ProgHeader{ - Type: ProgType(ph.Type), - Flags: ProgFlag(ph.Flags), - Off: uint64(ph.Off), - Vaddr: uint64(ph.Vaddr), - Paddr: uint64(ph.Paddr), - Filesz: uint64(ph.Filesz), - Memsz: uint64(ph.Memsz), - Align: uint64(ph.Align), - } - case ELFCLASS64: - ph := new(Prog64) - if err := binary.Read(sr, f.ByteOrder, ph); err != nil { - return nil, err - } - p.ProgHeader = ProgHeader{ - Type: ProgType(ph.Type), - Flags: ProgFlag(ph.Flags), - Off: uint64(ph.Off), - Vaddr: uint64(ph.Vaddr), - Paddr: uint64(ph.Paddr), - Filesz: uint64(ph.Filesz), - Memsz: uint64(ph.Memsz), - Align: uint64(ph.Align), - } - } - p.sr = io.NewSectionReader(r, int64(p.Off), int64(p.Filesz)) - p.ReaderAt = p.sr - f.Progs[i] = p - } - - // Read section headers - f.Sections = make([]*Section, shnum) - names := make([]uint32, shnum) - for i := 0; i < shnum; i++ { - off := shoff + int64(i)*int64(shentsize) - sr.Seek(off, os.SEEK_SET) - s := new(Section) - switch f.Class { - case ELFCLASS32: - sh := new(Section32) - if err := binary.Read(sr, f.ByteOrder, sh); err != nil { - return nil, err - } - names[i] = sh.Name - s.SectionHeader = SectionHeader{ - Type: SectionType(sh.Type), - Flags: SectionFlag(sh.Flags), - Addr: uint64(sh.Addr), - Offset: uint64(sh.Off), - Size: uint64(sh.Size), - Link: uint32(sh.Link), - Info: uint32(sh.Info), - Addralign: uint64(sh.Addralign), - Entsize: uint64(sh.Entsize), - } - case ELFCLASS64: - sh := new(Section64) - if err := binary.Read(sr, f.ByteOrder, sh); err != nil { - return nil, err - } - names[i] = sh.Name - s.SectionHeader = SectionHeader{ - Type: SectionType(sh.Type), - Flags: SectionFlag(sh.Flags), - Offset: uint64(sh.Off), - Size: uint64(sh.Size), - Addr: uint64(sh.Addr), - Link: uint32(sh.Link), - Info: uint32(sh.Info), - Addralign: uint64(sh.Addralign), - Entsize: uint64(sh.Entsize), - } - } - s.sr = io.NewSectionReader(r, int64(s.Offset), int64(s.Size)) - s.ReaderAt = s.sr - f.Sections[i] = s - } - - if len(f.Sections) == 0 { - return f, nil - } - - // Load section header string table. - shstrtab, err := f.Sections[shstrndx].Data() - if err != nil { - return nil, err - } - for i, s := range f.Sections { - var ok bool - s.Name, ok = getString(shstrtab, int(names[i])) - if !ok { - return nil, &FormatError{shoff + int64(i*shentsize), "bad section name index", names[i]} - } - } - - return f, nil -} - -// getSymbols returns a slice of Symbols from parsing the symbol table -// with the given type, along with the associated string table. -func (f *File) getSymbols(typ SectionType) ([]Symbol, []byte, error) { - switch f.Class { - case ELFCLASS64: - return f.getSymbols64(typ) - - case ELFCLASS32: - return f.getSymbols32(typ) - } - - return nil, nil, errors.New("not implemented") -} - -func (f *File) getSymbols32(typ SectionType) ([]Symbol, []byte, error) { - symtabSection := f.SectionByType(typ) - if symtabSection == nil { - return nil, nil, errors.New("no symbol section") - } - - data, err := symtabSection.Data() - if err != nil { - return nil, nil, errors.New("cannot load symbol section") - } - symtab := bytes.NewReader(data) - if symtab.Len()%Sym32Size != 0 { - return nil, nil, errors.New("length of symbol section is not a multiple of SymSize") - } - - strdata, err := f.stringTable(symtabSection.Link) - if err != nil { - return nil, nil, errors.New("cannot load string table section") - } - - // The first entry is all zeros. - var skip [Sym32Size]byte - symtab.Read(skip[:]) - - symbols := make([]Symbol, symtab.Len()/Sym32Size) - - i := 0 - var sym Sym32 - for symtab.Len() > 0 { - binary.Read(symtab, f.ByteOrder, &sym) - str, _ := getString(strdata, int(sym.Name)) - symbols[i].Name = str - symbols[i].Info = sym.Info - symbols[i].Other = sym.Other - symbols[i].Section = SectionIndex(sym.Shndx) - symbols[i].Value = uint64(sym.Value) - symbols[i].Size = uint64(sym.Size) - i++ - } - - return symbols, strdata, nil -} - -func (f *File) getSymbols64(typ SectionType) ([]Symbol, []byte, error) { - symtabSection := f.SectionByType(typ) - if symtabSection == nil { - return nil, nil, errors.New("no symbol section") - } - - data, err := symtabSection.Data() - if err != nil { - return nil, nil, errors.New("cannot load symbol section") - } - symtab := bytes.NewReader(data) - if symtab.Len()%Sym64Size != 0 { - return nil, nil, errors.New("length of symbol section is not a multiple of Sym64Size") - } - - strdata, err := f.stringTable(symtabSection.Link) - if err != nil { - return nil, nil, errors.New("cannot load string table section") - } - - // The first entry is all zeros. - var skip [Sym64Size]byte - symtab.Read(skip[:]) - - symbols := make([]Symbol, symtab.Len()/Sym64Size) - - i := 0 - var sym Sym64 - for symtab.Len() > 0 { - binary.Read(symtab, f.ByteOrder, &sym) - str, _ := getString(strdata, int(sym.Name)) - symbols[i].Name = str - symbols[i].Info = sym.Info - symbols[i].Other = sym.Other - symbols[i].Section = SectionIndex(sym.Shndx) - symbols[i].Value = sym.Value - symbols[i].Size = sym.Size - i++ - } - - return symbols, strdata, nil -} - -// getString extracts a string from an ELF string table. -func getString(section []byte, start int) (string, bool) { - if start < 0 || start >= len(section) { - return "", false - } - - for end := start; end < len(section); end++ { - if section[end] == 0 { - return string(section[start:end]), true - } - } - return "", false -} - -// Section returns a section with the given name, or nil if no such -// section exists. -func (f *File) Section(name string) *Section { - for _, s := range f.Sections { - if s.Name == name { - return s - } - } - return nil -} - -// applyRelocations applies relocations to dst. rels is a relocations section -// in RELA format. -func (f *File) applyRelocations(dst []byte, rels []byte) error { - if f.Class == ELFCLASS64 && f.Machine == EM_X86_64 { - return f.applyRelocationsAMD64(dst, rels) - } - if f.Class == ELFCLASS32 && f.Machine == EM_386 { - return f.applyRelocations386(dst, rels) - } - - return errors.New("not implemented") -} - -func (f *File) applyRelocationsAMD64(dst []byte, rels []byte) error { - // 24 is the size of Rela64. - if len(rels)%24 != 0 { - return errors.New("length of relocation section is not a multiple of 24") - } - - symbols, _, err := f.getSymbols(SHT_SYMTAB) - if err != nil { - return err - } - - b := bytes.NewReader(rels) - var rela Rela64 - - for b.Len() > 0 { - binary.Read(b, f.ByteOrder, &rela) - symNo := rela.Info >> 32 - t := R_X86_64(rela.Info & 0xffff) - - if symNo == 0 || symNo > uint64(len(symbols)) { - continue - } - sym := &symbols[symNo-1] - if SymType(sym.Info&0xf) != STT_SECTION { - // We don't handle non-section relocations for now. - continue - } - - switch t { - case R_X86_64_64: - if rela.Off+8 >= uint64(len(dst)) || rela.Addend < 0 { - continue - } - f.ByteOrder.PutUint64(dst[rela.Off:rela.Off+8], uint64(rela.Addend)) - case R_X86_64_32: - if rela.Off+4 >= uint64(len(dst)) || rela.Addend < 0 { - continue - } - f.ByteOrder.PutUint32(dst[rela.Off:rela.Off+4], uint32(rela.Addend)) - } - } - - return nil -} - -func (f *File) applyRelocations386(dst []byte, rels []byte) error { - // 8 is the size of Rel32. - if len(rels)%8 != 0 { - return errors.New("length of relocation section is not a multiple of 8") - } - - symbols, _, err := f.getSymbols(SHT_SYMTAB) - if err != nil { - return err - } - - b := bytes.NewReader(rels) - var rel Rel32 - - for b.Len() > 0 { - binary.Read(b, f.ByteOrder, &rel) - symNo := rel.Info >> 8 - t := R_386(rel.Info & 0xff) - - if symNo == 0 || symNo > uint32(len(symbols)) { - continue - } - sym := &symbols[symNo-1] - - if t == R_386_32 { - if rel.Off+4 >= uint32(len(dst)) { - continue - } - val := f.ByteOrder.Uint32(dst[rel.Off : rel.Off+4]) - val += uint32(sym.Value) - f.ByteOrder.PutUint32(dst[rel.Off:rel.Off+4], val) - } - } - - return nil -} - -func (f *File) DWARF() (*dwarf.Data, error) { - // There are many other DWARF sections, but these - // are the required ones, and the debug/dwarf package - // does not use the others, so don't bother loading them. - var names = [...]string{"abbrev", "info", "str"} - var dat [len(names)][]byte - for i, name := range names { - name = ".debug_" + name - s := f.Section(name) - if s == nil { - continue - } - b, err := s.Data() - if err != nil && uint64(len(b)) < s.Size { - return nil, err - } - dat[i] = b - } - - // If there's a relocation table for .debug_info, we have to process it - // now otherwise the data in .debug_info is invalid for x86-64 objects. - rela := f.Section(".rela.debug_info") - if rela != nil && rela.Type == SHT_RELA && f.Machine == EM_X86_64 { - data, err := rela.Data() - if err != nil { - return nil, err - } - err = f.applyRelocations(dat[1], data) - if err != nil { - return nil, err - } - } - - // When using clang we need to process relocations even for 386. - rel := f.Section(".rel.debug_info") - if rel != nil && rel.Type == SHT_REL && f.Machine == EM_386 { - data, err := rel.Data() - if err != nil { - return nil, err - } - err = f.applyRelocations(dat[1], data) - if err != nil { - return nil, err - } - } - - abbrev, info, str := dat[0], dat[1], dat[2] - d, err := dwarf.New(abbrev, nil, nil, info, nil, nil, nil, str) - if err != nil { - return nil, err - } - - // Look for DWARF4 .debug_types sections. - for i, s := range f.Sections { - if s.Name == ".debug_types" { - b, err := s.Data() - if err != nil && uint64(len(b)) < s.Size { - return nil, err - } - - for _, r := range f.Sections { - if r.Type != SHT_RELA && r.Type != SHT_REL { - continue - } - if int(r.Info) != i { - continue - } - rd, err := r.Data() - if err != nil { - return nil, err - } - err = f.applyRelocations(b, rd) - if err != nil { - return nil, err - } - } - - err = d.AddTypes(fmt.Sprintf("types-%d", i), b) - if err != nil { - return nil, err - } - } - } - - return d, nil -} - -// Symbols returns the symbol table for f. -// -// For compatibility with Go 1.0, Symbols omits the null symbol at index 0. -// After retrieving the symbols as symtab, an externally supplied index x -// corresponds to symtab[x-1], not symtab[x]. -func (f *File) Symbols() ([]Symbol, error) { - sym, _, err := f.getSymbols(SHT_SYMTAB) - return sym, err -} - -type ImportedSymbol struct { - Name string - Version string - Library string -} - -// ImportedSymbols returns the names of all symbols -// referred to by the binary f that are expected to be -// satisfied by other libraries at dynamic load time. -// It does not return weak symbols. -func (f *File) ImportedSymbols() ([]ImportedSymbol, error) { - sym, str, err := f.getSymbols(SHT_DYNSYM) - if err != nil { - return nil, err - } - f.gnuVersionInit(str) - var all []ImportedSymbol - for i, s := range sym { - if ST_BIND(s.Info) == STB_GLOBAL && s.Section == SHN_UNDEF { - all = append(all, ImportedSymbol{Name: s.Name}) - f.gnuVersion(i, &all[len(all)-1]) - } - } - return all, nil -} - -type verneed struct { - File string - Name string -} - -// gnuVersionInit parses the GNU version tables -// for use by calls to gnuVersion. -func (f *File) gnuVersionInit(str []byte) { - // Accumulate verneed information. - vn := f.SectionByType(SHT_GNU_VERNEED) - if vn == nil { - return - } - d, _ := vn.Data() - - var need []verneed - i := 0 - for { - if i+16 > len(d) { - break - } - vers := f.ByteOrder.Uint16(d[i : i+2]) - if vers != 1 { - break - } - cnt := f.ByteOrder.Uint16(d[i+2 : i+4]) - fileoff := f.ByteOrder.Uint32(d[i+4 : i+8]) - aux := f.ByteOrder.Uint32(d[i+8 : i+12]) - next := f.ByteOrder.Uint32(d[i+12 : i+16]) - file, _ := getString(str, int(fileoff)) - - var name string - j := i + int(aux) - for c := 0; c < int(cnt); c++ { - if j+16 > len(d) { - break - } - // hash := f.ByteOrder.Uint32(d[j:j+4]) - // flags := f.ByteOrder.Uint16(d[j+4:j+6]) - other := f.ByteOrder.Uint16(d[j+6 : j+8]) - nameoff := f.ByteOrder.Uint32(d[j+8 : j+12]) - next := f.ByteOrder.Uint32(d[j+12 : j+16]) - name, _ = getString(str, int(nameoff)) - ndx := int(other) - if ndx >= len(need) { - a := make([]verneed, 2*(ndx+1)) - copy(a, need) - need = a - } - - need[ndx] = verneed{file, name} - if next == 0 { - break - } - j += int(next) - } - - if next == 0 { - break - } - i += int(next) - } - - // Versym parallels symbol table, indexing into verneed. - vs := f.SectionByType(SHT_GNU_VERSYM) - if vs == nil { - return - } - d, _ = vs.Data() - - f.gnuNeed = need - f.gnuVersym = d -} - -// gnuVersion adds Library and Version information to sym, -// which came from offset i of the symbol table. -func (f *File) gnuVersion(i int, sym *ImportedSymbol) { - // Each entry is two bytes. - i = (i + 1) * 2 - if i >= len(f.gnuVersym) { - return - } - j := int(f.ByteOrder.Uint16(f.gnuVersym[i:])) - if j < 2 || j >= len(f.gnuNeed) { - return - } - n := &f.gnuNeed[j] - sym.Library = n.File - sym.Version = n.Name -} - -// ImportedLibraries returns the names of all libraries -// referred to by the binary f that are expected to be -// linked with the binary at dynamic link time. -func (f *File) ImportedLibraries() ([]string, error) { - return f.DynString(DT_NEEDED) -} - -// DynString returns the strings listed for the given tag in the file's dynamic -// section. -// -// The tag must be one that takes string values: DT_NEEDED, DT_SONAME, DT_RPATH, or -// DT_RUNPATH. -func (f *File) DynString(tag DynTag) ([]string, error) { - switch tag { - case DT_NEEDED, DT_SONAME, DT_RPATH, DT_RUNPATH: - default: - return nil, fmt.Errorf("non-string-valued tag %v", tag) - } - ds := f.SectionByType(SHT_DYNAMIC) - if ds == nil { - // not dynamic, so no libraries - return nil, nil - } - d, err := ds.Data() - if err != nil { - return nil, err - } - str, err := f.stringTable(ds.Link) - if err != nil { - return nil, err - } - var all []string - for len(d) > 0 { - var t DynTag - var v uint64 - switch f.Class { - case ELFCLASS32: - t = DynTag(f.ByteOrder.Uint32(d[0:4])) - v = uint64(f.ByteOrder.Uint32(d[4:8])) - d = d[8:] - case ELFCLASS64: - t = DynTag(f.ByteOrder.Uint64(d[0:8])) - v = f.ByteOrder.Uint64(d[8:16]) - d = d[16:] - } - if t == tag { - s, ok := getString(str, int(v)) - if ok { - all = append(all, s) - } - } - } - return all, nil -} diff --git a/src/pkg/debug/elf/file_test.go b/src/pkg/debug/elf/file_test.go deleted file mode 100644 index 7f88a54bc..000000000 --- a/src/pkg/debug/elf/file_test.go +++ /dev/null @@ -1,339 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package elf - -import ( - "bytes" - "compress/gzip" - "debug/dwarf" - "encoding/binary" - "io" - "net" - "os" - "path" - "reflect" - "runtime" - "testing" -) - -type fileTest struct { - file string - hdr FileHeader - sections []SectionHeader - progs []ProgHeader - needed []string -} - -var fileTests = []fileTest{ - { - "testdata/gcc-386-freebsd-exec", - FileHeader{ELFCLASS32, ELFDATA2LSB, EV_CURRENT, ELFOSABI_FREEBSD, 0, binary.LittleEndian, ET_EXEC, EM_386, 0x80483cc}, - []SectionHeader{ - {"", SHT_NULL, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, - {".interp", SHT_PROGBITS, SHF_ALLOC, 0x80480d4, 0xd4, 0x15, 0x0, 0x0, 0x1, 0x0}, - {".hash", SHT_HASH, SHF_ALLOC, 0x80480ec, 0xec, 0x90, 0x3, 0x0, 0x4, 0x4}, - {".dynsym", SHT_DYNSYM, SHF_ALLOC, 0x804817c, 0x17c, 0x110, 0x4, 0x1, 0x4, 0x10}, - {".dynstr", SHT_STRTAB, SHF_ALLOC, 0x804828c, 0x28c, 0xbb, 0x0, 0x0, 0x1, 0x0}, - {".rel.plt", SHT_REL, SHF_ALLOC, 0x8048348, 0x348, 0x20, 0x3, 0x7, 0x4, 0x8}, - {".init", SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR, 0x8048368, 0x368, 0x11, 0x0, 0x0, 0x4, 0x0}, - {".plt", SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR, 0x804837c, 0x37c, 0x50, 0x0, 0x0, 0x4, 0x4}, - {".text", SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR, 0x80483cc, 0x3cc, 0x180, 0x0, 0x0, 0x4, 0x0}, - {".fini", SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR, 0x804854c, 0x54c, 0xc, 0x0, 0x0, 0x4, 0x0}, - {".rodata", SHT_PROGBITS, SHF_ALLOC, 0x8048558, 0x558, 0xa3, 0x0, 0x0, 0x1, 0x0}, - {".data", SHT_PROGBITS, SHF_WRITE + SHF_ALLOC, 0x80495fc, 0x5fc, 0xc, 0x0, 0x0, 0x4, 0x0}, - {".eh_frame", SHT_PROGBITS, SHF_ALLOC, 0x8049608, 0x608, 0x4, 0x0, 0x0, 0x4, 0x0}, - {".dynamic", SHT_DYNAMIC, SHF_WRITE + SHF_ALLOC, 0x804960c, 0x60c, 0x98, 0x4, 0x0, 0x4, 0x8}, - {".ctors", SHT_PROGBITS, SHF_WRITE + SHF_ALLOC, 0x80496a4, 0x6a4, 0x8, 0x0, 0x0, 0x4, 0x0}, - {".dtors", SHT_PROGBITS, SHF_WRITE + SHF_ALLOC, 0x80496ac, 0x6ac, 0x8, 0x0, 0x0, 0x4, 0x0}, - {".jcr", SHT_PROGBITS, SHF_WRITE + SHF_ALLOC, 0x80496b4, 0x6b4, 0x4, 0x0, 0x0, 0x4, 0x0}, - {".got", SHT_PROGBITS, SHF_WRITE + SHF_ALLOC, 0x80496b8, 0x6b8, 0x1c, 0x0, 0x0, 0x4, 0x4}, - {".bss", SHT_NOBITS, SHF_WRITE + SHF_ALLOC, 0x80496d4, 0x6d4, 0x20, 0x0, 0x0, 0x4, 0x0}, - {".comment", SHT_PROGBITS, 0x0, 0x0, 0x6d4, 0x12d, 0x0, 0x0, 0x1, 0x0}, - {".debug_aranges", SHT_PROGBITS, 0x0, 0x0, 0x801, 0x20, 0x0, 0x0, 0x1, 0x0}, - {".debug_pubnames", SHT_PROGBITS, 0x0, 0x0, 0x821, 0x1b, 0x0, 0x0, 0x1, 0x0}, - {".debug_info", SHT_PROGBITS, 0x0, 0x0, 0x83c, 0x11d, 0x0, 0x0, 0x1, 0x0}, - {".debug_abbrev", SHT_PROGBITS, 0x0, 0x0, 0x959, 0x41, 0x0, 0x0, 0x1, 0x0}, - {".debug_line", SHT_PROGBITS, 0x0, 0x0, 0x99a, 0x35, 0x0, 0x0, 0x1, 0x0}, - {".debug_frame", SHT_PROGBITS, 0x0, 0x0, 0x9d0, 0x30, 0x0, 0x0, 0x4, 0x0}, - {".debug_str", SHT_PROGBITS, 0x0, 0x0, 0xa00, 0xd, 0x0, 0x0, 0x1, 0x0}, - {".shstrtab", SHT_STRTAB, 0x0, 0x0, 0xa0d, 0xf8, 0x0, 0x0, 0x1, 0x0}, - {".symtab", SHT_SYMTAB, 0x0, 0x0, 0xfb8, 0x4b0, 0x1d, 0x38, 0x4, 0x10}, - {".strtab", SHT_STRTAB, 0x0, 0x0, 0x1468, 0x206, 0x0, 0x0, 0x1, 0x0}, - }, - []ProgHeader{ - {PT_PHDR, PF_R + PF_X, 0x34, 0x8048034, 0x8048034, 0xa0, 0xa0, 0x4}, - {PT_INTERP, PF_R, 0xd4, 0x80480d4, 0x80480d4, 0x15, 0x15, 0x1}, - {PT_LOAD, PF_R + PF_X, 0x0, 0x8048000, 0x8048000, 0x5fb, 0x5fb, 0x1000}, - {PT_LOAD, PF_R + PF_W, 0x5fc, 0x80495fc, 0x80495fc, 0xd8, 0xf8, 0x1000}, - {PT_DYNAMIC, PF_R + PF_W, 0x60c, 0x804960c, 0x804960c, 0x98, 0x98, 0x4}, - }, - []string{"libc.so.6"}, - }, - { - "testdata/gcc-amd64-linux-exec", - FileHeader{ELFCLASS64, ELFDATA2LSB, EV_CURRENT, ELFOSABI_NONE, 0, binary.LittleEndian, ET_EXEC, EM_X86_64, 0x4003e0}, - []SectionHeader{ - {"", SHT_NULL, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, - {".interp", SHT_PROGBITS, SHF_ALLOC, 0x400200, 0x200, 0x1c, 0x0, 0x0, 0x1, 0x0}, - {".note.ABI-tag", SHT_NOTE, SHF_ALLOC, 0x40021c, 0x21c, 0x20, 0x0, 0x0, 0x4, 0x0}, - {".hash", SHT_HASH, SHF_ALLOC, 0x400240, 0x240, 0x24, 0x5, 0x0, 0x8, 0x4}, - {".gnu.hash", SHT_LOOS + 268435446, SHF_ALLOC, 0x400268, 0x268, 0x1c, 0x5, 0x0, 0x8, 0x0}, - {".dynsym", SHT_DYNSYM, SHF_ALLOC, 0x400288, 0x288, 0x60, 0x6, 0x1, 0x8, 0x18}, - {".dynstr", SHT_STRTAB, SHF_ALLOC, 0x4002e8, 0x2e8, 0x3d, 0x0, 0x0, 0x1, 0x0}, - {".gnu.version", SHT_HIOS, SHF_ALLOC, 0x400326, 0x326, 0x8, 0x5, 0x0, 0x2, 0x2}, - {".gnu.version_r", SHT_LOOS + 268435454, SHF_ALLOC, 0x400330, 0x330, 0x20, 0x6, 0x1, 0x8, 0x0}, - {".rela.dyn", SHT_RELA, SHF_ALLOC, 0x400350, 0x350, 0x18, 0x5, 0x0, 0x8, 0x18}, - {".rela.plt", SHT_RELA, SHF_ALLOC, 0x400368, 0x368, 0x30, 0x5, 0xc, 0x8, 0x18}, - {".init", SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR, 0x400398, 0x398, 0x18, 0x0, 0x0, 0x4, 0x0}, - {".plt", SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR, 0x4003b0, 0x3b0, 0x30, 0x0, 0x0, 0x4, 0x10}, - {".text", SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR, 0x4003e0, 0x3e0, 0x1b4, 0x0, 0x0, 0x10, 0x0}, - {".fini", SHT_PROGBITS, SHF_ALLOC + SHF_EXECINSTR, 0x400594, 0x594, 0xe, 0x0, 0x0, 0x4, 0x0}, - {".rodata", SHT_PROGBITS, SHF_ALLOC, 0x4005a4, 0x5a4, 0x11, 0x0, 0x0, 0x4, 0x0}, - {".eh_frame_hdr", SHT_PROGBITS, SHF_ALLOC, 0x4005b8, 0x5b8, 0x24, 0x0, 0x0, 0x4, 0x0}, - {".eh_frame", SHT_PROGBITS, SHF_ALLOC, 0x4005e0, 0x5e0, 0xa4, 0x0, 0x0, 0x8, 0x0}, - {".ctors", SHT_PROGBITS, SHF_WRITE + SHF_ALLOC, 0x600688, 0x688, 0x10, 0x0, 0x0, 0x8, 0x0}, - {".dtors", SHT_PROGBITS, SHF_WRITE + SHF_ALLOC, 0x600698, 0x698, 0x10, 0x0, 0x0, 0x8, 0x0}, - {".jcr", SHT_PROGBITS, SHF_WRITE + SHF_ALLOC, 0x6006a8, 0x6a8, 0x8, 0x0, 0x0, 0x8, 0x0}, - {".dynamic", SHT_DYNAMIC, SHF_WRITE + SHF_ALLOC, 0x6006b0, 0x6b0, 0x1a0, 0x6, 0x0, 0x8, 0x10}, - {".got", SHT_PROGBITS, SHF_WRITE + SHF_ALLOC, 0x600850, 0x850, 0x8, 0x0, 0x0, 0x8, 0x8}, - {".got.plt", SHT_PROGBITS, SHF_WRITE + SHF_ALLOC, 0x600858, 0x858, 0x28, 0x0, 0x0, 0x8, 0x8}, - {".data", SHT_PROGBITS, SHF_WRITE + SHF_ALLOC, 0x600880, 0x880, 0x18, 0x0, 0x0, 0x8, 0x0}, - {".bss", SHT_NOBITS, SHF_WRITE + SHF_ALLOC, 0x600898, 0x898, 0x8, 0x0, 0x0, 0x4, 0x0}, - {".comment", SHT_PROGBITS, 0x0, 0x0, 0x898, 0x126, 0x0, 0x0, 0x1, 0x0}, - {".debug_aranges", SHT_PROGBITS, 0x0, 0x0, 0x9c0, 0x90, 0x0, 0x0, 0x10, 0x0}, - {".debug_pubnames", SHT_PROGBITS, 0x0, 0x0, 0xa50, 0x25, 0x0, 0x0, 0x1, 0x0}, - {".debug_info", SHT_PROGBITS, 0x0, 0x0, 0xa75, 0x1a7, 0x0, 0x0, 0x1, 0x0}, - {".debug_abbrev", SHT_PROGBITS, 0x0, 0x0, 0xc1c, 0x6f, 0x0, 0x0, 0x1, 0x0}, - {".debug_line", SHT_PROGBITS, 0x0, 0x0, 0xc8b, 0x13f, 0x0, 0x0, 0x1, 0x0}, - {".debug_str", SHT_PROGBITS, SHF_MERGE + SHF_STRINGS, 0x0, 0xdca, 0xb1, 0x0, 0x0, 0x1, 0x1}, - {".debug_ranges", SHT_PROGBITS, 0x0, 0x0, 0xe80, 0x90, 0x0, 0x0, 0x10, 0x0}, - {".shstrtab", SHT_STRTAB, 0x0, 0x0, 0xf10, 0x149, 0x0, 0x0, 0x1, 0x0}, - {".symtab", SHT_SYMTAB, 0x0, 0x0, 0x19a0, 0x6f0, 0x24, 0x39, 0x8, 0x18}, - {".strtab", SHT_STRTAB, 0x0, 0x0, 0x2090, 0x1fc, 0x0, 0x0, 0x1, 0x0}, - }, - []ProgHeader{ - {PT_PHDR, PF_R + PF_X, 0x40, 0x400040, 0x400040, 0x1c0, 0x1c0, 0x8}, - {PT_INTERP, PF_R, 0x200, 0x400200, 0x400200, 0x1c, 0x1c, 1}, - {PT_LOAD, PF_R + PF_X, 0x0, 0x400000, 0x400000, 0x684, 0x684, 0x200000}, - {PT_LOAD, PF_R + PF_W, 0x688, 0x600688, 0x600688, 0x210, 0x218, 0x200000}, - {PT_DYNAMIC, PF_R + PF_W, 0x6b0, 0x6006b0, 0x6006b0, 0x1a0, 0x1a0, 0x8}, - {PT_NOTE, PF_R, 0x21c, 0x40021c, 0x40021c, 0x20, 0x20, 0x4}, - {PT_LOOS + 0x474E550, PF_R, 0x5b8, 0x4005b8, 0x4005b8, 0x24, 0x24, 0x4}, - {PT_LOOS + 0x474E551, PF_R + PF_W, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8}, - }, - []string{"libc.so.6"}, - }, - { - "testdata/hello-world-core.gz", - FileHeader{ELFCLASS64, ELFDATA2LSB, EV_CURRENT, ELFOSABI_NONE, 0x0, binary.LittleEndian, ET_CORE, EM_X86_64, 0x0}, - []SectionHeader{}, - []ProgHeader{ - {Type: PT_NOTE, Flags: 0x0, Off: 0x3f8, Vaddr: 0x0, Paddr: 0x0, Filesz: 0x8ac, Memsz: 0x0, Align: 0x0}, - {Type: PT_LOAD, Flags: PF_X + PF_R, Off: 0x1000, Vaddr: 0x400000, Paddr: 0x0, Filesz: 0x0, Memsz: 0x1000, Align: 0x1000}, - {Type: PT_LOAD, Flags: PF_R, Off: 0x1000, Vaddr: 0x401000, Paddr: 0x0, Filesz: 0x1000, Memsz: 0x1000, Align: 0x1000}, - {Type: PT_LOAD, Flags: PF_W + PF_R, Off: 0x2000, Vaddr: 0x402000, Paddr: 0x0, Filesz: 0x1000, Memsz: 0x1000, Align: 0x1000}, - {Type: PT_LOAD, Flags: PF_X + PF_R, Off: 0x3000, Vaddr: 0x7f54078b8000, Paddr: 0x0, Filesz: 0x0, Memsz: 0x1b5000, Align: 0x1000}, - {Type: PT_LOAD, Flags: 0x0, Off: 0x3000, Vaddr: 0x7f5407a6d000, Paddr: 0x0, Filesz: 0x0, Memsz: 0x1ff000, Align: 0x1000}, - {Type: PT_LOAD, Flags: PF_R, Off: 0x3000, Vaddr: 0x7f5407c6c000, Paddr: 0x0, Filesz: 0x4000, Memsz: 0x4000, Align: 0x1000}, - {Type: PT_LOAD, Flags: PF_W + PF_R, Off: 0x7000, Vaddr: 0x7f5407c70000, Paddr: 0x0, Filesz: 0x2000, Memsz: 0x2000, Align: 0x1000}, - {Type: PT_LOAD, Flags: PF_W + PF_R, Off: 0x9000, Vaddr: 0x7f5407c72000, Paddr: 0x0, Filesz: 0x5000, Memsz: 0x5000, Align: 0x1000}, - {Type: PT_LOAD, Flags: PF_X + PF_R, Off: 0xe000, Vaddr: 0x7f5407c77000, Paddr: 0x0, Filesz: 0x0, Memsz: 0x22000, Align: 0x1000}, - {Type: PT_LOAD, Flags: PF_W + PF_R, Off: 0xe000, Vaddr: 0x7f5407e81000, Paddr: 0x0, Filesz: 0x3000, Memsz: 0x3000, Align: 0x1000}, - {Type: PT_LOAD, Flags: PF_W + PF_R, Off: 0x11000, Vaddr: 0x7f5407e96000, Paddr: 0x0, Filesz: 0x3000, Memsz: 0x3000, Align: 0x1000}, - {Type: PT_LOAD, Flags: PF_R, Off: 0x14000, Vaddr: 0x7f5407e99000, Paddr: 0x0, Filesz: 0x1000, Memsz: 0x1000, Align: 0x1000}, - {Type: PT_LOAD, Flags: PF_W + PF_R, Off: 0x15000, Vaddr: 0x7f5407e9a000, Paddr: 0x0, Filesz: 0x2000, Memsz: 0x2000, Align: 0x1000}, - {Type: PT_LOAD, Flags: PF_W + PF_R, Off: 0x17000, Vaddr: 0x7fff79972000, Paddr: 0x0, Filesz: 0x23000, Memsz: 0x23000, Align: 0x1000}, - {Type: PT_LOAD, Flags: PF_X + PF_R, Off: 0x3a000, Vaddr: 0x7fff799f8000, Paddr: 0x0, Filesz: 0x1000, Memsz: 0x1000, Align: 0x1000}, - {Type: PT_LOAD, Flags: PF_X + PF_R, Off: 0x3b000, Vaddr: 0xffffffffff600000, Paddr: 0x0, Filesz: 0x1000, Memsz: 0x1000, Align: 0x1000}, - }, - nil, - }, -} - -func TestOpen(t *testing.T) { - for i := range fileTests { - tt := &fileTests[i] - - var f *File - var err error - if path.Ext(tt.file) == ".gz" { - var r io.ReaderAt - if r, err = decompress(tt.file); err == nil { - f, err = NewFile(r) - } - } else { - f, err = Open(tt.file) - } - defer f.Close() - if err != nil { - t.Errorf("cannot open file %s: %v", tt.file, err) - continue - } - if !reflect.DeepEqual(f.FileHeader, tt.hdr) { - t.Errorf("open %s:\n\thave %#v\n\twant %#v\n", tt.file, f.FileHeader, tt.hdr) - continue - } - for i, s := range f.Sections { - if i >= len(tt.sections) { - break - } - sh := &tt.sections[i] - if !reflect.DeepEqual(&s.SectionHeader, sh) { - t.Errorf("open %s, section %d:\n\thave %#v\n\twant %#v\n", tt.file, i, &s.SectionHeader, sh) - } - } - for i, p := range f.Progs { - if i >= len(tt.progs) { - break - } - ph := &tt.progs[i] - if !reflect.DeepEqual(&p.ProgHeader, ph) { - t.Errorf("open %s, program %d:\n\thave %#v\n\twant %#v\n", tt.file, i, &p.ProgHeader, ph) - } - } - tn := len(tt.sections) - fn := len(f.Sections) - if tn != fn { - t.Errorf("open %s: len(Sections) = %d, want %d", tt.file, fn, tn) - } - tn = len(tt.progs) - fn = len(f.Progs) - if tn != fn { - t.Errorf("open %s: len(Progs) = %d, want %d", tt.file, fn, tn) - } - tl := tt.needed - fl, err := f.ImportedLibraries() - if err != nil { - t.Error(err) - } - if !reflect.DeepEqual(tl, fl) { - t.Errorf("open %s: DT_NEEDED = %v, want %v", tt.file, tl, fl) - } - } -} - -// elf.NewFile requires io.ReaderAt, which compress/gzip cannot -// provide. Decompress the file to a bytes.Reader. -func decompress(gz string) (io.ReaderAt, error) { - in, err := os.Open(gz) - if err != nil { - return nil, err - } - defer in.Close() - r, err := gzip.NewReader(in) - if err != nil { - return nil, err - } - var out bytes.Buffer - _, err = io.Copy(&out, r) - return bytes.NewReader(out.Bytes()), err -} - -type relocationTestEntry struct { - entryNumber int - entry *dwarf.Entry -} - -type relocationTest struct { - file string - entries []relocationTestEntry -} - -var relocationTests = []relocationTest{ - { - "testdata/go-relocation-test-gcc441-x86-64.obj", - []relocationTestEntry{ - {0, &dwarf.Entry{Offset: 0xb, Tag: dwarf.TagCompileUnit, Children: true, Field: []dwarf.Field{{Attr: dwarf.AttrProducer, Val: "GNU C 4.4.1"}, {Attr: dwarf.AttrLanguage, Val: int64(1)}, {Attr: dwarf.AttrName, Val: "go-relocation-test.c"}, {Attr: dwarf.AttrCompDir, Val: "/tmp"}, {Attr: dwarf.AttrLowpc, Val: uint64(0x0)}, {Attr: dwarf.AttrHighpc, Val: uint64(0x6)}, {Attr: dwarf.AttrStmtList, Val: int64(0)}}}}, - }, - }, - { - "testdata/go-relocation-test-gcc441-x86.obj", - []relocationTestEntry{ - {0, &dwarf.Entry{Offset: 0xb, Tag: dwarf.TagCompileUnit, Children: true, Field: []dwarf.Field{{Attr: dwarf.AttrProducer, Val: "GNU C 4.4.1"}, {Attr: dwarf.AttrLanguage, Val: int64(1)}, {Attr: dwarf.AttrName, Val: "t.c"}, {Attr: dwarf.AttrCompDir, Val: "/tmp"}, {Attr: dwarf.AttrLowpc, Val: uint64(0x0)}, {Attr: dwarf.AttrHighpc, Val: uint64(0x5)}, {Attr: dwarf.AttrStmtList, Val: int64(0)}}}}, - }, - }, - { - "testdata/go-relocation-test-gcc424-x86-64.obj", - []relocationTestEntry{ - {0, &dwarf.Entry{Offset: 0xb, Tag: dwarf.TagCompileUnit, Children: true, Field: []dwarf.Field{{Attr: dwarf.AttrProducer, Val: "GNU C 4.2.4 (Ubuntu 4.2.4-1ubuntu4)"}, {Attr: dwarf.AttrLanguage, Val: int64(1)}, {Attr: dwarf.AttrName, Val: "go-relocation-test-gcc424.c"}, {Attr: dwarf.AttrCompDir, Val: "/tmp"}, {Attr: dwarf.AttrLowpc, Val: uint64(0x0)}, {Attr: dwarf.AttrHighpc, Val: uint64(0x6)}, {Attr: dwarf.AttrStmtList, Val: int64(0)}}}}, - }, - }, - { - "testdata/go-relocation-test-clang-x86.obj", - []relocationTestEntry{ - {0, &dwarf.Entry{Offset: 0xb, Tag: dwarf.TagCompileUnit, Children: true, Field: []dwarf.Field{{Attr: dwarf.AttrProducer, Val: "clang version google3-trunk (trunk r209387)"}, {Attr: dwarf.AttrLanguage, Val: int64(12)}, {Attr: dwarf.AttrName, Val: "go-relocation-test-clang.c"}, {Attr: dwarf.AttrStmtList, Val: int64(0)}, {Attr: dwarf.AttrCompDir, Val: "/tmp"}}}}, - }, - }, - { - "testdata/gcc-amd64-openbsd-debug-with-rela.obj", - []relocationTestEntry{ - {203, &dwarf.Entry{Offset: 0xc62, Tag: dwarf.TagMember, Children: false, Field: []dwarf.Field{{Attr: dwarf.AttrName, Val: "it_interval"}, {Attr: dwarf.AttrDeclFile, Val: int64(7)}, {Attr: dwarf.AttrDeclLine, Val: int64(236)}, {Attr: dwarf.AttrType, Val: dwarf.Offset(0xb7f)}, {Attr: dwarf.AttrDataMemberLoc, Val: []byte{0x23, 0x0}}}}}, - {204, &dwarf.Entry{Offset: 0xc70, Tag: dwarf.TagMember, Children: false, Field: []dwarf.Field{{Attr: dwarf.AttrName, Val: "it_value"}, {Attr: dwarf.AttrDeclFile, Val: int64(7)}, {Attr: dwarf.AttrDeclLine, Val: int64(237)}, {Attr: dwarf.AttrType, Val: dwarf.Offset(0xb7f)}, {Attr: dwarf.AttrDataMemberLoc, Val: []byte{0x23, 0x10}}}}}, - }, - }, -} - -func TestDWARFRelocations(t *testing.T) { - for i, test := range relocationTests { - f, err := Open(test.file) - if err != nil { - t.Error(err) - continue - } - dwarf, err := f.DWARF() - if err != nil { - t.Error(err) - continue - } - for _, testEntry := range test.entries { - reader := dwarf.Reader() - for j := 0; j < testEntry.entryNumber; j++ { - entry, err := reader.Next() - if entry == nil || err != nil { - t.Errorf("Failed to skip to entry %d: %v", testEntry.entryNumber, err) - continue - } - } - entry, err := reader.Next() - if err != nil { - t.Error(err) - continue - } - if !reflect.DeepEqual(testEntry.entry, entry) { - t.Errorf("#%d/%d: mismatch: got:%#v want:%#v", i, testEntry.entryNumber, entry, testEntry.entry) - continue - } - } - } -} - -func TestNoSectionOverlaps(t *testing.T) { - // Ensure 6l outputs sections without overlaps. - if runtime.GOOS != "linux" && runtime.GOOS != "freebsd" { - return // not ELF - } - _ = net.ResolveIPAddr // force dynamic linkage - f, err := Open(os.Args[0]) - if err != nil { - t.Error(err) - return - } - for i, si := range f.Sections { - sih := si.SectionHeader - if sih.Type == SHT_NOBITS { - continue - } - for j, sj := range f.Sections { - sjh := sj.SectionHeader - if i == j || sjh.Type == SHT_NOBITS || sih.Offset == sjh.Offset && sih.Size == 0 { - continue - } - if sih.Offset >= sjh.Offset && sih.Offset < sjh.Offset+sjh.Size { - t.Errorf("ld produced ELF with section %s within %s: 0x%x <= 0x%x..0x%x < 0x%x", - sih.Name, sjh.Name, sjh.Offset, sih.Offset, sih.Offset+sih.Size, sjh.Offset+sjh.Size) - } - } - } -} diff --git a/src/pkg/debug/elf/testdata/gcc-386-freebsd-exec b/src/pkg/debug/elf/testdata/gcc-386-freebsd-exec Binary files differdeleted file mode 100755 index 7af9c58ca..000000000 --- a/src/pkg/debug/elf/testdata/gcc-386-freebsd-exec +++ /dev/null diff --git a/src/pkg/debug/elf/testdata/gcc-amd64-linux-exec b/src/pkg/debug/elf/testdata/gcc-amd64-linux-exec Binary files differdeleted file mode 100755 index c6cb1de28..000000000 --- a/src/pkg/debug/elf/testdata/gcc-amd64-linux-exec +++ /dev/null diff --git a/src/pkg/debug/elf/testdata/gcc-amd64-openbsd-debug-with-rela.obj b/src/pkg/debug/elf/testdata/gcc-amd64-openbsd-debug-with-rela.obj Binary files differdeleted file mode 100644 index f62b1ea1c..000000000 --- a/src/pkg/debug/elf/testdata/gcc-amd64-openbsd-debug-with-rela.obj +++ /dev/null diff --git a/src/pkg/debug/elf/testdata/go-relocation-test-clang-x86.obj b/src/pkg/debug/elf/testdata/go-relocation-test-clang-x86.obj Binary files differdeleted file mode 100644 index e909cf4e6..000000000 --- a/src/pkg/debug/elf/testdata/go-relocation-test-clang-x86.obj +++ /dev/null diff --git a/src/pkg/debug/elf/testdata/go-relocation-test-gcc424-x86-64.obj b/src/pkg/debug/elf/testdata/go-relocation-test-gcc424-x86-64.obj Binary files differdeleted file mode 100644 index a7c6d6e56..000000000 --- a/src/pkg/debug/elf/testdata/go-relocation-test-gcc424-x86-64.obj +++ /dev/null diff --git a/src/pkg/debug/elf/testdata/go-relocation-test-gcc441-x86-64.obj b/src/pkg/debug/elf/testdata/go-relocation-test-gcc441-x86-64.obj Binary files differdeleted file mode 100644 index 2d37ab6e6..000000000 --- a/src/pkg/debug/elf/testdata/go-relocation-test-gcc441-x86-64.obj +++ /dev/null diff --git a/src/pkg/debug/elf/testdata/go-relocation-test-gcc441-x86.obj b/src/pkg/debug/elf/testdata/go-relocation-test-gcc441-x86.obj Binary files differdeleted file mode 100644 index 0d59fe303..000000000 --- a/src/pkg/debug/elf/testdata/go-relocation-test-gcc441-x86.obj +++ /dev/null diff --git a/src/pkg/debug/elf/testdata/hello-world-core.gz b/src/pkg/debug/elf/testdata/hello-world-core.gz Binary files differdeleted file mode 100644 index 806af6edb..000000000 --- a/src/pkg/debug/elf/testdata/hello-world-core.gz +++ /dev/null diff --git a/src/pkg/debug/elf/testdata/hello.c b/src/pkg/debug/elf/testdata/hello.c deleted file mode 100644 index 34d9ee792..000000000 --- a/src/pkg/debug/elf/testdata/hello.c +++ /dev/null @@ -1,7 +0,0 @@ -#include <stdio.h> - -void -main(int argc, char *argv[]) -{ - printf("hello, world\n"); -} diff --git a/src/pkg/debug/gosym/pclinetest.asm b/src/pkg/debug/gosym/pclinetest.asm deleted file mode 100644 index b9ee9c0a5..000000000 --- a/src/pkg/debug/gosym/pclinetest.asm +++ /dev/null @@ -1,58 +0,0 @@ -TEXT linefrompc(SB),4,$0 // Each byte stores its line delta -BYTE $2; -BYTE $1; -BYTE $1; BYTE $0; -BYTE $1; BYTE $0; BYTE $0; -BYTE $1; BYTE $0; BYTE $0; BYTE $0; BYTE $0; -BYTE $1; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; -BYTE $1; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; -BYTE $1; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; -BYTE $1; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; -BYTE $1; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; -BYTE $1; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; -BYTE $1; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; -BYTE $1; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; -BYTE $1; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; -BYTE $1; -BYTE $1; -BYTE $1; BYTE $0; -BYTE $1; BYTE $0; BYTE $0; -BYTE $1; BYTE $0; BYTE $0; BYTE $0; BYTE $0; -BYTE $1; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; -BYTE $1; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; -BYTE $1; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; -BYTE $1; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; BYTE $0; -#include "pclinetest.h" -BYTE $2; -#include "pclinetest.h" -BYTE $2; -BYTE $255; - -TEXT pcfromline(SB),4,$0 // Each record stores its line delta, then n, then n more bytes -BYTE $32; BYTE $0; -BYTE $1; BYTE $1; BYTE $0; -BYTE $1; BYTE $0; - -BYTE $2; BYTE $4; BYTE $0; BYTE $0; BYTE $0; BYTE $0; - - -#include "pclinetest.h" -BYTE $4; BYTE $0; - - -BYTE $3; BYTE $3; BYTE $0; BYTE $0; BYTE $0; -#include "pclinetest.h" - - -BYTE $4; BYTE $3; BYTE $0; BYTE $0; BYTE $0; -BYTE $255; - -// Keep the linker happy -TEXT main·main(SB),4,$0 - RET - -TEXT main·init(SB),4,$0 - // Prevent GC of our test symbols - CALL linefrompc(SB) - CALL pcfromline(SB) - RET diff --git a/src/pkg/debug/gosym/pclinetest.h b/src/pkg/debug/gosym/pclinetest.h deleted file mode 100644 index 156c0b87b..000000000 --- a/src/pkg/debug/gosym/pclinetest.h +++ /dev/null @@ -1,9 +0,0 @@ -// +build ignore - -// Empty include file to generate z symbols - - - - - -// EOF diff --git a/src/pkg/debug/gosym/pclntab.go b/src/pkg/debug/gosym/pclntab.go deleted file mode 100644 index 6620aefb0..000000000 --- a/src/pkg/debug/gosym/pclntab.go +++ /dev/null @@ -1,453 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -/* - * Line tables - */ - -package gosym - -import ( - "encoding/binary" - "sync" -) - -// A LineTable is a data structure mapping program counters to line numbers. -// -// In Go 1.1 and earlier, each function (represented by a Func) had its own LineTable, -// and the line number corresponded to a numbering of all source lines in the -// program, across all files. That absolute line number would then have to be -// converted separately to a file name and line number within the file. -// -// In Go 1.2, the format of the data changed so that there is a single LineTable -// for the entire program, shared by all Funcs, and there are no absolute line -// numbers, just line numbers within specific files. -// -// For the most part, LineTable's methods should be treated as an internal -// detail of the package; callers should use the methods on Table instead. -type LineTable struct { - Data []byte - PC uint64 - Line int - - // Go 1.2 state - mu sync.Mutex - go12 int // is this in Go 1.2 format? -1 no, 0 unknown, 1 yes - binary binary.ByteOrder - quantum uint32 - ptrsize uint32 - functab []byte - nfunctab uint32 - filetab []byte - nfiletab uint32 - fileMap map[string]uint32 -} - -// NOTE(rsc): This is wrong for GOARCH=arm, which uses a quantum of 4, -// but we have no idea whether we're using arm or not. This only -// matters in the old (pre-Go 1.2) symbol table format, so it's not worth -// fixing. -const oldQuantum = 1 - -func (t *LineTable) parse(targetPC uint64, targetLine int) (b []byte, pc uint64, line int) { - // The PC/line table can be thought of as a sequence of - // <pc update>* <line update> - // batches. Each update batch results in a (pc, line) pair, - // where line applies to every PC from pc up to but not - // including the pc of the next pair. - // - // Here we process each update individually, which simplifies - // the code, but makes the corner cases more confusing. - b, pc, line = t.Data, t.PC, t.Line - for pc <= targetPC && line != targetLine && len(b) > 0 { - code := b[0] - b = b[1:] - switch { - case code == 0: - if len(b) < 4 { - b = b[0:0] - break - } - val := binary.BigEndian.Uint32(b) - b = b[4:] - line += int(val) - case code <= 64: - line += int(code) - case code <= 128: - line -= int(code - 64) - default: - pc += oldQuantum * uint64(code-128) - continue - } - pc += oldQuantum - } - return b, pc, line -} - -func (t *LineTable) slice(pc uint64) *LineTable { - data, pc, line := t.parse(pc, -1) - return &LineTable{Data: data, PC: pc, Line: line} -} - -// PCToLine returns the line number for the given program counter. -// Callers should use Table's PCToLine method instead. -func (t *LineTable) PCToLine(pc uint64) int { - if t.isGo12() { - return t.go12PCToLine(pc) - } - _, _, line := t.parse(pc, -1) - return line -} - -// LineToPC returns the program counter for the given line number, -// considering only program counters before maxpc. -// Callers should use Table's LineToPC method instead. -func (t *LineTable) LineToPC(line int, maxpc uint64) uint64 { - if t.isGo12() { - return 0 - } - _, pc, line1 := t.parse(maxpc, line) - if line1 != line { - return 0 - } - // Subtract quantum from PC to account for post-line increment - return pc - oldQuantum -} - -// NewLineTable returns a new PC/line table -// corresponding to the encoded data. -// Text must be the start address of the -// corresponding text segment. -func NewLineTable(data []byte, text uint64) *LineTable { - return &LineTable{Data: data, PC: text, Line: 0} -} - -// Go 1.2 symbol table format. -// See golang.org/s/go12symtab. -// -// A general note about the methods here: rather than try to avoid -// index out of bounds errors, we trust Go to detect them, and then -// we recover from the panics and treat them as indicative of a malformed -// or incomplete table. -// -// The methods called by symtab.go, which begin with "go12" prefixes, -// are expected to have that recovery logic. - -// isGo12 reports whether this is a Go 1.2 (or later) symbol table. -func (t *LineTable) isGo12() bool { - t.go12Init() - return t.go12 == 1 -} - -const go12magic = 0xfffffffb - -// uintptr returns the pointer-sized value encoded at b. -// The pointer size is dictated by the table being read. -func (t *LineTable) uintptr(b []byte) uint64 { - if t.ptrsize == 4 { - return uint64(t.binary.Uint32(b)) - } - return t.binary.Uint64(b) -} - -// go12init initializes the Go 1.2 metadata if t is a Go 1.2 symbol table. -func (t *LineTable) go12Init() { - t.mu.Lock() - defer t.mu.Unlock() - if t.go12 != 0 { - return - } - - defer func() { - // If we panic parsing, assume it's not a Go 1.2 symbol table. - recover() - }() - - // Check header: 4-byte magic, two zeros, pc quantum, pointer size. - t.go12 = -1 // not Go 1.2 until proven otherwise - if len(t.Data) < 16 || t.Data[4] != 0 || t.Data[5] != 0 || - (t.Data[6] != 1 && t.Data[6] != 4) || // pc quantum - (t.Data[7] != 4 && t.Data[7] != 8) { // pointer size - return - } - - switch uint32(go12magic) { - case binary.LittleEndian.Uint32(t.Data): - t.binary = binary.LittleEndian - case binary.BigEndian.Uint32(t.Data): - t.binary = binary.BigEndian - default: - return - } - - t.quantum = uint32(t.Data[6]) - t.ptrsize = uint32(t.Data[7]) - - t.nfunctab = uint32(t.uintptr(t.Data[8:])) - t.functab = t.Data[8+t.ptrsize:] - functabsize := t.nfunctab*2*t.ptrsize + t.ptrsize - fileoff := t.binary.Uint32(t.functab[functabsize:]) - t.functab = t.functab[:functabsize] - t.filetab = t.Data[fileoff:] - t.nfiletab = t.binary.Uint32(t.filetab) - t.filetab = t.filetab[:t.nfiletab*4] - - t.go12 = 1 // so far so good -} - -// go12Funcs returns a slice of Funcs derived from the Go 1.2 pcln table. -func (t *LineTable) go12Funcs() []Func { - // Assume it is malformed and return nil on error. - defer func() { - recover() - }() - - n := len(t.functab) / int(t.ptrsize) / 2 - funcs := make([]Func, n) - for i := range funcs { - f := &funcs[i] - f.Entry = uint64(t.uintptr(t.functab[2*i*int(t.ptrsize):])) - f.End = uint64(t.uintptr(t.functab[(2*i+2)*int(t.ptrsize):])) - info := t.Data[t.uintptr(t.functab[(2*i+1)*int(t.ptrsize):]):] - f.LineTable = t - f.FrameSize = int(t.binary.Uint32(info[t.ptrsize+2*4:])) - f.Sym = &Sym{ - Value: f.Entry, - Type: 'T', - Name: t.string(t.binary.Uint32(info[t.ptrsize:])), - GoType: 0, - Func: f, - } - } - return funcs -} - -// findFunc returns the func corresponding to the given program counter. -func (t *LineTable) findFunc(pc uint64) []byte { - if pc < t.uintptr(t.functab) || pc >= t.uintptr(t.functab[len(t.functab)-int(t.ptrsize):]) { - return nil - } - - // The function table is a list of 2*nfunctab+1 uintptrs, - // alternating program counters and offsets to func structures. - f := t.functab - nf := t.nfunctab - for nf > 0 { - m := nf / 2 - fm := f[2*t.ptrsize*m:] - if t.uintptr(fm) <= pc && pc < t.uintptr(fm[2*t.ptrsize:]) { - return t.Data[t.uintptr(fm[t.ptrsize:]):] - } else if pc < t.uintptr(fm) { - nf = m - } else { - f = f[(m+1)*2*t.ptrsize:] - nf -= m + 1 - } - } - return nil -} - -// readvarint reads, removes, and returns a varint from *pp. -func (t *LineTable) readvarint(pp *[]byte) uint32 { - var v, shift uint32 - p := *pp - for shift = 0; ; shift += 7 { - b := p[0] - p = p[1:] - v |= (uint32(b) & 0x7F) << shift - if b&0x80 == 0 { - break - } - } - *pp = p - return v -} - -// string returns a Go string found at off. -func (t *LineTable) string(off uint32) string { - for i := off; ; i++ { - if t.Data[i] == 0 { - return string(t.Data[off:i]) - } - } -} - -// step advances to the next pc, value pair in the encoded table. -func (t *LineTable) step(p *[]byte, pc *uint64, val *int32, first bool) bool { - uvdelta := t.readvarint(p) - if uvdelta == 0 && !first { - return false - } - if uvdelta&1 != 0 { - uvdelta = ^(uvdelta >> 1) - } else { - uvdelta >>= 1 - } - vdelta := int32(uvdelta) - pcdelta := t.readvarint(p) * t.quantum - *pc += uint64(pcdelta) - *val += vdelta - return true -} - -// pcvalue reports the value associated with the target pc. -// off is the offset to the beginning of the pc-value table, -// and entry is the start PC for the corresponding function. -func (t *LineTable) pcvalue(off uint32, entry, targetpc uint64) int32 { - if off == 0 { - return -1 - } - p := t.Data[off:] - - val := int32(-1) - pc := entry - for t.step(&p, &pc, &val, pc == entry) { - if targetpc < pc { - return val - } - } - return -1 -} - -// findFileLine scans one function in the binary looking for a -// program counter in the given file on the given line. -// It does so by running the pc-value tables mapping program counter -// to file number. Since most functions come from a single file, these -// are usually short and quick to scan. If a file match is found, then the -// code goes to the expense of looking for a simultaneous line number match. -func (t *LineTable) findFileLine(entry uint64, filetab, linetab uint32, filenum, line int32) uint64 { - if filetab == 0 || linetab == 0 { - return 0 - } - - fp := t.Data[filetab:] - fl := t.Data[linetab:] - fileVal := int32(-1) - filePC := entry - lineVal := int32(-1) - linePC := entry - fileStartPC := filePC - for t.step(&fp, &filePC, &fileVal, filePC == entry) { - if fileVal == filenum && fileStartPC < filePC { - // fileVal is in effect starting at fileStartPC up to - // but not including filePC, and it's the file we want. - // Run the PC table looking for a matching line number - // or until we reach filePC. - lineStartPC := linePC - for linePC < filePC && t.step(&fl, &linePC, &lineVal, linePC == entry) { - // lineVal is in effect until linePC, and lineStartPC < filePC. - if lineVal == line { - if fileStartPC <= lineStartPC { - return lineStartPC - } - if fileStartPC < linePC { - return fileStartPC - } - } - lineStartPC = linePC - } - } - fileStartPC = filePC - } - return 0 -} - -// go12PCToLine maps program counter to line number for the Go 1.2 pcln table. -func (t *LineTable) go12PCToLine(pc uint64) (line int) { - defer func() { - if recover() != nil { - line = -1 - } - }() - - f := t.findFunc(pc) - if f == nil { - return -1 - } - entry := t.uintptr(f) - linetab := t.binary.Uint32(f[t.ptrsize+5*4:]) - return int(t.pcvalue(linetab, entry, pc)) -} - -// go12PCToFile maps program counter to file name for the Go 1.2 pcln table. -func (t *LineTable) go12PCToFile(pc uint64) (file string) { - defer func() { - if recover() != nil { - file = "" - } - }() - - f := t.findFunc(pc) - if f == nil { - return "" - } - entry := t.uintptr(f) - filetab := t.binary.Uint32(f[t.ptrsize+4*4:]) - fno := t.pcvalue(filetab, entry, pc) - if fno <= 0 { - return "" - } - return t.string(t.binary.Uint32(t.filetab[4*fno:])) -} - -// go12LineToPC maps a (file, line) pair to a program counter for the Go 1.2 pcln table. -func (t *LineTable) go12LineToPC(file string, line int) (pc uint64) { - defer func() { - if recover() != nil { - pc = 0 - } - }() - - t.initFileMap() - filenum := t.fileMap[file] - if filenum == 0 { - return 0 - } - - // Scan all functions. - // If this turns out to be a bottleneck, we could build a map[int32][]int32 - // mapping file number to a list of functions with code from that file. - for i := uint32(0); i < t.nfunctab; i++ { - f := t.Data[t.uintptr(t.functab[2*t.ptrsize*i+t.ptrsize:]):] - entry := t.uintptr(f) - filetab := t.binary.Uint32(f[t.ptrsize+4*4:]) - linetab := t.binary.Uint32(f[t.ptrsize+5*4:]) - pc := t.findFileLine(entry, filetab, linetab, int32(filenum), int32(line)) - if pc != 0 { - return pc - } - } - return 0 -} - -// initFileMap initializes the map from file name to file number. -func (t *LineTable) initFileMap() { - t.mu.Lock() - defer t.mu.Unlock() - - if t.fileMap != nil { - return - } - m := make(map[string]uint32) - - for i := uint32(1); i < t.nfiletab; i++ { - s := t.string(t.binary.Uint32(t.filetab[4*i:])) - m[s] = i - } - t.fileMap = m -} - -// go12MapFiles adds to m a key for every file in the Go 1.2 LineTable. -// Every key maps to obj. That's not a very interesting map, but it provides -// a way for callers to obtain the list of files in the program. -func (t *LineTable) go12MapFiles(m map[string]*Obj, obj *Obj) { - defer func() { - recover() - }() - - t.initFileMap() - for file := range t.fileMap { - m[file] = obj - } -} diff --git a/src/pkg/debug/gosym/pclntab_test.go b/src/pkg/debug/gosym/pclntab_test.go deleted file mode 100644 index 35502e8c3..000000000 --- a/src/pkg/debug/gosym/pclntab_test.go +++ /dev/null @@ -1,274 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package gosym - -import ( - "debug/elf" - "fmt" - "io/ioutil" - "os" - "os/exec" - "path/filepath" - "runtime" - "strings" - "testing" -) - -var ( - pclineTempDir string - pclinetestBinary string -) - -func dotest(self bool) bool { - // For now, only works on amd64 platforms. - if runtime.GOARCH != "amd64" { - return false - } - // Self test reads test binary; only works on Linux. - if self && runtime.GOOS != "linux" { - return false - } - // Command below expects "sh", so Unix. - if runtime.GOOS == "windows" || runtime.GOOS == "plan9" { - return false - } - if pclinetestBinary != "" { - return true - } - var err error - pclineTempDir, err = ioutil.TempDir("", "pclinetest") - if err != nil { - panic(err) - } - if strings.Contains(pclineTempDir, " ") { - panic("unexpected space in tempdir") - } - // This command builds pclinetest from pclinetest.asm; - // the resulting binary looks like it was built from pclinetest.s, - // but we have renamed it to keep it away from the go tool. - pclinetestBinary = filepath.Join(pclineTempDir, "pclinetest") - command := fmt.Sprintf("go tool 6a -o %s.6 pclinetest.asm && go tool 6l -H linux -E main -o %s %s.6", - pclinetestBinary, pclinetestBinary, pclinetestBinary) - cmd := exec.Command("sh", "-c", command) - cmd.Stdout = os.Stdout - cmd.Stderr = os.Stderr - if err := cmd.Run(); err != nil { - panic(err) - } - return true -} - -func endtest() { - if pclineTempDir != "" { - os.RemoveAll(pclineTempDir) - pclineTempDir = "" - pclinetestBinary = "" - } -} - -func getTable(t *testing.T) *Table { - f, tab := crack(os.Args[0], t) - f.Close() - return tab -} - -func crack(file string, t *testing.T) (*elf.File, *Table) { - // Open self - f, err := elf.Open(file) - if err != nil { - t.Fatal(err) - } - return parse(file, f, t) -} - -func parse(file string, f *elf.File, t *testing.T) (*elf.File, *Table) { - symdat, err := f.Section(".gosymtab").Data() - if err != nil { - f.Close() - t.Fatalf("reading %s gosymtab: %v", file, err) - } - pclndat, err := f.Section(".gopclntab").Data() - if err != nil { - f.Close() - t.Fatalf("reading %s gopclntab: %v", file, err) - } - - pcln := NewLineTable(pclndat, f.Section(".text").Addr) - tab, err := NewTable(symdat, pcln) - if err != nil { - f.Close() - t.Fatalf("parsing %s gosymtab: %v", file, err) - } - - return f, tab -} - -var goarch = os.Getenv("O") - -func TestLineFromAline(t *testing.T) { - if !dotest(true) { - return - } - defer endtest() - - tab := getTable(t) - if tab.go12line != nil { - // aline's don't exist in the Go 1.2 table. - t.Skip("not relevant to Go 1.2 symbol table") - } - - // Find the sym package - pkg := tab.LookupFunc("debug/gosym.TestLineFromAline").Obj - if pkg == nil { - t.Fatalf("nil pkg") - } - - // Walk every absolute line and ensure that we hit every - // source line monotonically - lastline := make(map[string]int) - final := -1 - for i := 0; i < 10000; i++ { - path, line := pkg.lineFromAline(i) - // Check for end of object - if path == "" { - if final == -1 { - final = i - 1 - } - continue - } else if final != -1 { - t.Fatalf("reached end of package at absolute line %d, but absolute line %d mapped to %s:%d", final, i, path, line) - } - // It's okay to see files multiple times (e.g., sys.a) - if line == 1 { - lastline[path] = 1 - continue - } - // Check that the is the next line in path - ll, ok := lastline[path] - if !ok { - t.Errorf("file %s starts on line %d", path, line) - } else if line != ll+1 { - t.Fatalf("expected next line of file %s to be %d, got %d", path, ll+1, line) - } - lastline[path] = line - } - if final == -1 { - t.Errorf("never reached end of object") - } -} - -func TestLineAline(t *testing.T) { - if !dotest(true) { - return - } - defer endtest() - - tab := getTable(t) - if tab.go12line != nil { - // aline's don't exist in the Go 1.2 table. - t.Skip("not relevant to Go 1.2 symbol table") - } - - for _, o := range tab.Files { - // A source file can appear multiple times in a - // object. alineFromLine will always return alines in - // the first file, so track which lines we've seen. - found := make(map[string]int) - for i := 0; i < 1000; i++ { - path, line := o.lineFromAline(i) - if path == "" { - break - } - - // cgo files are full of 'Z' symbols, which we don't handle - if len(path) > 4 && path[len(path)-4:] == ".cgo" { - continue - } - - if minline, ok := found[path]; path != "" && ok { - if minline >= line { - // We've already covered this file - continue - } - } - found[path] = line - - a, err := o.alineFromLine(path, line) - if err != nil { - t.Errorf("absolute line %d in object %s maps to %s:%d, but mapping that back gives error %s", i, o.Paths[0].Name, path, line, err) - } else if a != i { - t.Errorf("absolute line %d in object %s maps to %s:%d, which maps back to absolute line %d\n", i, o.Paths[0].Name, path, line, a) - } - } - } -} - -func TestPCLine(t *testing.T) { - if !dotest(false) { - return - } - defer endtest() - - f, tab := crack(pclinetestBinary, t) - text := f.Section(".text") - textdat, err := text.Data() - if err != nil { - t.Fatalf("reading .text: %v", err) - } - - // Test PCToLine - sym := tab.LookupFunc("linefrompc") - wantLine := 0 - for pc := sym.Entry; pc < sym.End; pc++ { - off := pc - text.Addr // TODO(rsc): should not need off; bug in 8g - if textdat[off] == 255 { - break - } - wantLine += int(textdat[off]) - t.Logf("off is %d %#x (max %d)", off, textdat[off], sym.End-pc) - file, line, fn := tab.PCToLine(pc) - if fn == nil { - t.Errorf("failed to get line of PC %#x", pc) - } else if !strings.HasSuffix(file, "pclinetest.asm") || line != wantLine || fn != sym { - t.Errorf("PCToLine(%#x) = %s:%d (%s), want %s:%d (%s)", pc, file, line, fn.Name, "pclinetest.asm", wantLine, sym.Name) - } - } - - // Test LineToPC - sym = tab.LookupFunc("pcfromline") - lookupline := -1 - wantLine = 0 - off := uint64(0) // TODO(rsc): should not need off; bug in 8g - for pc := sym.Value; pc < sym.End; pc += 2 + uint64(textdat[off]) { - file, line, fn := tab.PCToLine(pc) - off = pc - text.Addr - if textdat[off] == 255 { - break - } - wantLine += int(textdat[off]) - if line != wantLine { - t.Errorf("expected line %d at PC %#x in pcfromline, got %d", wantLine, pc, line) - off = pc + 1 - text.Addr - continue - } - if lookupline == -1 { - lookupline = line - } - for ; lookupline <= line; lookupline++ { - pc2, fn2, err := tab.LineToPC(file, lookupline) - if lookupline != line { - // Should be nothing on this line - if err == nil { - t.Errorf("expected no PC at line %d, got %#x (%s)", lookupline, pc2, fn2.Name) - } - } else if err != nil { - t.Errorf("failed to get PC of line %d: %s", lookupline, err) - } else if pc != pc2 { - t.Errorf("expected PC %#x (%s) at line %d, got PC %#x (%s)", pc, fn.Name, line, pc2, fn2.Name) - } - } - off = pc + 1 - text.Addr - } -} diff --git a/src/pkg/debug/gosym/symtab.go b/src/pkg/debug/gosym/symtab.go deleted file mode 100644 index 3864e3cb4..000000000 --- a/src/pkg/debug/gosym/symtab.go +++ /dev/null @@ -1,710 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package gosym implements access to the Go symbol -// and line number tables embedded in Go binaries generated -// by the gc compilers. -package gosym - -// The table format is a variant of the format used in Plan 9's a.out -// format, documented at http://plan9.bell-labs.com/magic/man2html/6/a.out. -// The best reference for the differences between the Plan 9 format -// and the Go format is the runtime source, specifically ../../runtime/symtab.c. - -import ( - "bytes" - "encoding/binary" - "fmt" - "strconv" - "strings" -) - -/* - * Symbols - */ - -// A Sym represents a single symbol table entry. -type Sym struct { - Value uint64 - Type byte - Name string - GoType uint64 - // If this symbol if a function symbol, the corresponding Func - Func *Func -} - -// Static reports whether this symbol is static (not visible outside its file). -func (s *Sym) Static() bool { return s.Type >= 'a' } - -// PackageName returns the package part of the symbol name, -// or the empty string if there is none. -func (s *Sym) PackageName() string { - if i := strings.Index(s.Name, "."); i != -1 { - return s.Name[0:i] - } - return "" -} - -// ReceiverName returns the receiver type name of this symbol, -// or the empty string if there is none. -func (s *Sym) ReceiverName() string { - l := strings.Index(s.Name, ".") - r := strings.LastIndex(s.Name, ".") - if l == -1 || r == -1 || l == r { - return "" - } - return s.Name[l+1 : r] -} - -// BaseName returns the symbol name without the package or receiver name. -func (s *Sym) BaseName() string { - if i := strings.LastIndex(s.Name, "."); i != -1 { - return s.Name[i+1:] - } - return s.Name -} - -// A Func collects information about a single function. -type Func struct { - Entry uint64 - *Sym - End uint64 - Params []*Sym - Locals []*Sym - FrameSize int - LineTable *LineTable - Obj *Obj -} - -// An Obj represents a collection of functions in a symbol table. -// -// The exact method of division of a binary into separate Objs is an internal detail -// of the symbol table format. -// -// In early versions of Go each source file became a different Obj. -// -// In Go 1 and Go 1.1, each package produced one Obj for all Go sources -// and one Obj per C source file. -// -// In Go 1.2, there is a single Obj for the entire program. -type Obj struct { - // Funcs is a list of functions in the Obj. - Funcs []Func - - // In Go 1.1 and earlier, Paths is a list of symbols corresponding - // to the source file names that produced the Obj. - // In Go 1.2, Paths is nil. - // Use the keys of Table.Files to obtain a list of source files. - Paths []Sym // meta -} - -/* - * Symbol tables - */ - -// Table represents a Go symbol table. It stores all of the -// symbols decoded from the program and provides methods to translate -// between symbols, names, and addresses. -type Table struct { - Syms []Sym - Funcs []Func - Files map[string]*Obj // nil for Go 1.2 and later binaries - Objs []Obj // nil for Go 1.2 and later binaries - - go12line *LineTable // Go 1.2 line number table -} - -type sym struct { - value uint64 - gotype uint64 - typ byte - name []byte -} - -var ( - littleEndianSymtab = []byte{0xFD, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00} - bigEndianSymtab = []byte{0xFF, 0xFF, 0xFF, 0xFD, 0x00, 0x00, 0x00} - oldLittleEndianSymtab = []byte{0xFE, 0xFF, 0xFF, 0xFF, 0x00, 0x00} -) - -func walksymtab(data []byte, fn func(sym) error) error { - if len(data) == 0 { // missing symtab is okay - return nil - } - var order binary.ByteOrder = binary.BigEndian - newTable := false - switch { - case bytes.HasPrefix(data, oldLittleEndianSymtab): - // Same as Go 1.0, but little endian. - // Format was used during interim development between Go 1.0 and Go 1.1. - // Should not be widespread, but easy to support. - data = data[6:] - order = binary.LittleEndian - case bytes.HasPrefix(data, bigEndianSymtab): - newTable = true - case bytes.HasPrefix(data, littleEndianSymtab): - newTable = true - order = binary.LittleEndian - } - var ptrsz int - if newTable { - if len(data) < 8 { - return &DecodingError{len(data), "unexpected EOF", nil} - } - ptrsz = int(data[7]) - if ptrsz != 4 && ptrsz != 8 { - return &DecodingError{7, "invalid pointer size", ptrsz} - } - data = data[8:] - } - var s sym - p := data - for len(p) >= 4 { - var typ byte - if newTable { - // Symbol type, value, Go type. - typ = p[0] & 0x3F - wideValue := p[0]&0x40 != 0 - goType := p[0]&0x80 != 0 - if typ < 26 { - typ += 'A' - } else { - typ += 'a' - 26 - } - s.typ = typ - p = p[1:] - if wideValue { - if len(p) < ptrsz { - return &DecodingError{len(data), "unexpected EOF", nil} - } - // fixed-width value - if ptrsz == 8 { - s.value = order.Uint64(p[0:8]) - p = p[8:] - } else { - s.value = uint64(order.Uint32(p[0:4])) - p = p[4:] - } - } else { - // varint value - s.value = 0 - shift := uint(0) - for len(p) > 0 && p[0]&0x80 != 0 { - s.value |= uint64(p[0]&0x7F) << shift - shift += 7 - p = p[1:] - } - if len(p) == 0 { - return &DecodingError{len(data), "unexpected EOF", nil} - } - s.value |= uint64(p[0]) << shift - p = p[1:] - } - if goType { - if len(p) < ptrsz { - return &DecodingError{len(data), "unexpected EOF", nil} - } - // fixed-width go type - if ptrsz == 8 { - s.gotype = order.Uint64(p[0:8]) - p = p[8:] - } else { - s.gotype = uint64(order.Uint32(p[0:4])) - p = p[4:] - } - } - } else { - // Value, symbol type. - s.value = uint64(order.Uint32(p[0:4])) - if len(p) < 5 { - return &DecodingError{len(data), "unexpected EOF", nil} - } - typ = p[4] - if typ&0x80 == 0 { - return &DecodingError{len(data) - len(p) + 4, "bad symbol type", typ} - } - typ &^= 0x80 - s.typ = typ - p = p[5:] - } - - // Name. - var i int - var nnul int - for i = 0; i < len(p); i++ { - if p[i] == 0 { - nnul = 1 - break - } - } - switch typ { - case 'z', 'Z': - p = p[i+nnul:] - for i = 0; i+2 <= len(p); i += 2 { - if p[i] == 0 && p[i+1] == 0 { - nnul = 2 - break - } - } - } - if len(p) < i+nnul { - return &DecodingError{len(data), "unexpected EOF", nil} - } - s.name = p[0:i] - i += nnul - p = p[i:] - - if !newTable { - if len(p) < 4 { - return &DecodingError{len(data), "unexpected EOF", nil} - } - // Go type. - s.gotype = uint64(order.Uint32(p[:4])) - p = p[4:] - } - fn(s) - } - return nil -} - -// NewTable decodes the Go symbol table in data, -// returning an in-memory representation. -func NewTable(symtab []byte, pcln *LineTable) (*Table, error) { - var n int - err := walksymtab(symtab, func(s sym) error { - n++ - return nil - }) - if err != nil { - return nil, err - } - - var t Table - if pcln.isGo12() { - t.go12line = pcln - } - fname := make(map[uint16]string) - t.Syms = make([]Sym, 0, n) - nf := 0 - nz := 0 - lasttyp := uint8(0) - err = walksymtab(symtab, func(s sym) error { - n := len(t.Syms) - t.Syms = t.Syms[0 : n+1] - ts := &t.Syms[n] - ts.Type = s.typ - ts.Value = uint64(s.value) - ts.GoType = uint64(s.gotype) - switch s.typ { - default: - // rewrite name to use . instead of · (c2 b7) - w := 0 - b := s.name - for i := 0; i < len(b); i++ { - if b[i] == 0xc2 && i+1 < len(b) && b[i+1] == 0xb7 { - i++ - b[i] = '.' - } - b[w] = b[i] - w++ - } - ts.Name = string(s.name[0:w]) - case 'z', 'Z': - if lasttyp != 'z' && lasttyp != 'Z' { - nz++ - } - for i := 0; i < len(s.name); i += 2 { - eltIdx := binary.BigEndian.Uint16(s.name[i : i+2]) - elt, ok := fname[eltIdx] - if !ok { - return &DecodingError{-1, "bad filename code", eltIdx} - } - if n := len(ts.Name); n > 0 && ts.Name[n-1] != '/' { - ts.Name += "/" - } - ts.Name += elt - } - } - switch s.typ { - case 'T', 't', 'L', 'l': - nf++ - case 'f': - fname[uint16(s.value)] = ts.Name - } - lasttyp = s.typ - return nil - }) - if err != nil { - return nil, err - } - - t.Funcs = make([]Func, 0, nf) - t.Files = make(map[string]*Obj) - - var obj *Obj - if t.go12line != nil { - // Put all functions into one Obj. - t.Objs = make([]Obj, 1) - obj = &t.Objs[0] - t.go12line.go12MapFiles(t.Files, obj) - } else { - t.Objs = make([]Obj, 0, nz) - } - - // Count text symbols and attach frame sizes, parameters, and - // locals to them. Also, find object file boundaries. - lastf := 0 - for i := 0; i < len(t.Syms); i++ { - sym := &t.Syms[i] - switch sym.Type { - case 'Z', 'z': // path symbol - if t.go12line != nil { - // Go 1.2 binaries have the file information elsewhere. Ignore. - break - } - // Finish the current object - if obj != nil { - obj.Funcs = t.Funcs[lastf:] - } - lastf = len(t.Funcs) - - // Start new object - n := len(t.Objs) - t.Objs = t.Objs[0 : n+1] - obj = &t.Objs[n] - - // Count & copy path symbols - var end int - for end = i + 1; end < len(t.Syms); end++ { - if c := t.Syms[end].Type; c != 'Z' && c != 'z' { - break - } - } - obj.Paths = t.Syms[i:end] - i = end - 1 // loop will i++ - - // Record file names - depth := 0 - for j := range obj.Paths { - s := &obj.Paths[j] - if s.Name == "" { - depth-- - } else { - if depth == 0 { - t.Files[s.Name] = obj - } - depth++ - } - } - - case 'T', 't', 'L', 'l': // text symbol - if n := len(t.Funcs); n > 0 { - t.Funcs[n-1].End = sym.Value - } - if sym.Name == "etext" { - continue - } - - // Count parameter and local (auto) syms - var np, na int - var end int - countloop: - for end = i + 1; end < len(t.Syms); end++ { - switch t.Syms[end].Type { - case 'T', 't', 'L', 'l', 'Z', 'z': - break countloop - case 'p': - np++ - case 'a': - na++ - } - } - - // Fill in the function symbol - n := len(t.Funcs) - t.Funcs = t.Funcs[0 : n+1] - fn := &t.Funcs[n] - sym.Func = fn - fn.Params = make([]*Sym, 0, np) - fn.Locals = make([]*Sym, 0, na) - fn.Sym = sym - fn.Entry = sym.Value - fn.Obj = obj - if t.go12line != nil { - // All functions share the same line table. - // It knows how to narrow down to a specific - // function quickly. - fn.LineTable = t.go12line - } else if pcln != nil { - fn.LineTable = pcln.slice(fn.Entry) - pcln = fn.LineTable - } - for j := i; j < end; j++ { - s := &t.Syms[j] - switch s.Type { - case 'm': - fn.FrameSize = int(s.Value) - case 'p': - n := len(fn.Params) - fn.Params = fn.Params[0 : n+1] - fn.Params[n] = s - case 'a': - n := len(fn.Locals) - fn.Locals = fn.Locals[0 : n+1] - fn.Locals[n] = s - } - } - i = end - 1 // loop will i++ - } - } - - if t.go12line != nil && nf == 0 { - t.Funcs = t.go12line.go12Funcs() - } - if obj != nil { - obj.Funcs = t.Funcs[lastf:] - } - return &t, nil -} - -// PCToFunc returns the function containing the program counter pc, -// or nil if there is no such function. -func (t *Table) PCToFunc(pc uint64) *Func { - funcs := t.Funcs - for len(funcs) > 0 { - m := len(funcs) / 2 - fn := &funcs[m] - switch { - case pc < fn.Entry: - funcs = funcs[0:m] - case fn.Entry <= pc && pc < fn.End: - return fn - default: - funcs = funcs[m+1:] - } - } - return nil -} - -// PCToLine looks up line number information for a program counter. -// If there is no information, it returns fn == nil. -func (t *Table) PCToLine(pc uint64) (file string, line int, fn *Func) { - if fn = t.PCToFunc(pc); fn == nil { - return - } - if t.go12line != nil { - file = t.go12line.go12PCToFile(pc) - line = t.go12line.go12PCToLine(pc) - } else { - file, line = fn.Obj.lineFromAline(fn.LineTable.PCToLine(pc)) - } - return -} - -// LineToPC looks up the first program counter on the given line in -// the named file. It returns UnknownPathError or UnknownLineError if -// there is an error looking up this line. -func (t *Table) LineToPC(file string, line int) (pc uint64, fn *Func, err error) { - obj, ok := t.Files[file] - if !ok { - return 0, nil, UnknownFileError(file) - } - - if t.go12line != nil { - pc := t.go12line.go12LineToPC(file, line) - if pc == 0 { - return 0, nil, &UnknownLineError{file, line} - } - return pc, t.PCToFunc(pc), nil - } - - abs, err := obj.alineFromLine(file, line) - if err != nil { - return - } - for i := range obj.Funcs { - f := &obj.Funcs[i] - pc := f.LineTable.LineToPC(abs, f.End) - if pc != 0 { - return pc, f, nil - } - } - return 0, nil, &UnknownLineError{file, line} -} - -// LookupSym returns the text, data, or bss symbol with the given name, -// or nil if no such symbol is found. -func (t *Table) LookupSym(name string) *Sym { - // TODO(austin) Maybe make a map - for i := range t.Syms { - s := &t.Syms[i] - switch s.Type { - case 'T', 't', 'L', 'l', 'D', 'd', 'B', 'b': - if s.Name == name { - return s - } - } - } - return nil -} - -// LookupFunc returns the text, data, or bss symbol with the given name, -// or nil if no such symbol is found. -func (t *Table) LookupFunc(name string) *Func { - for i := range t.Funcs { - f := &t.Funcs[i] - if f.Sym.Name == name { - return f - } - } - return nil -} - -// SymByAddr returns the text, data, or bss symbol starting at the given address. -func (t *Table) SymByAddr(addr uint64) *Sym { - for i := range t.Syms { - s := &t.Syms[i] - switch s.Type { - case 'T', 't', 'L', 'l', 'D', 'd', 'B', 'b': - if s.Value == addr { - return s - } - } - } - return nil -} - -/* - * Object files - */ - -// This is legacy code for Go 1.1 and earlier, which used the -// Plan 9 format for pc-line tables. This code was never quite -// correct. It's probably very close, and it's usually correct, but -// we never quite found all the corner cases. -// -// Go 1.2 and later use a simpler format, documented at golang.org/s/go12symtab. - -func (o *Obj) lineFromAline(aline int) (string, int) { - type stackEnt struct { - path string - start int - offset int - prev *stackEnt - } - - noPath := &stackEnt{"", 0, 0, nil} - tos := noPath - -pathloop: - for _, s := range o.Paths { - val := int(s.Value) - switch { - case val > aline: - break pathloop - - case val == 1: - // Start a new stack - tos = &stackEnt{s.Name, val, 0, noPath} - - case s.Name == "": - // Pop - if tos == noPath { - return "<malformed symbol table>", 0 - } - tos.prev.offset += val - tos.start - tos = tos.prev - - default: - // Push - tos = &stackEnt{s.Name, val, 0, tos} - } - } - - if tos == noPath { - return "", 0 - } - return tos.path, aline - tos.start - tos.offset + 1 -} - -func (o *Obj) alineFromLine(path string, line int) (int, error) { - if line < 1 { - return 0, &UnknownLineError{path, line} - } - - for i, s := range o.Paths { - // Find this path - if s.Name != path { - continue - } - - // Find this line at this stack level - depth := 0 - var incstart int - line += int(s.Value) - pathloop: - for _, s := range o.Paths[i:] { - val := int(s.Value) - switch { - case depth == 1 && val >= line: - return line - 1, nil - - case s.Name == "": - depth-- - if depth == 0 { - break pathloop - } else if depth == 1 { - line += val - incstart - } - - default: - if depth == 1 { - incstart = val - } - depth++ - } - } - return 0, &UnknownLineError{path, line} - } - return 0, UnknownFileError(path) -} - -/* - * Errors - */ - -// UnknownFileError represents a failure to find the specific file in -// the symbol table. -type UnknownFileError string - -func (e UnknownFileError) Error() string { return "unknown file: " + string(e) } - -// UnknownLineError represents a failure to map a line to a program -// counter, either because the line is beyond the bounds of the file -// or because there is no code on the given line. -type UnknownLineError struct { - File string - Line int -} - -func (e *UnknownLineError) Error() string { - return "no code at " + e.File + ":" + strconv.Itoa(e.Line) -} - -// DecodingError represents an error during the decoding of -// the symbol table. -type DecodingError struct { - off int - msg string - val interface{} -} - -func (e *DecodingError) Error() string { - msg := e.msg - if e.val != nil { - msg += fmt.Sprintf(" '%v'", e.val) - } - msg += fmt.Sprintf(" at byte %#x", e.off) - return msg -} diff --git a/src/pkg/debug/macho/fat.go b/src/pkg/debug/macho/fat.go deleted file mode 100644 index 93b831526..000000000 --- a/src/pkg/debug/macho/fat.go +++ /dev/null @@ -1,146 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package macho - -import ( - "encoding/binary" - "fmt" - "io" - "os" -) - -// A FatFile is a Mach-O universal binary that contains at least one architecture. -type FatFile struct { - Magic uint32 - Arches []FatArch - closer io.Closer -} - -// A FatArchHeader represents a fat header for a specific image architecture. -type FatArchHeader struct { - Cpu Cpu - SubCpu uint32 - Offset uint32 - Size uint32 - Align uint32 -} - -const fatArchHeaderSize = 5 * 4 - -// A FatArch is a Mach-O File inside a FatFile. -type FatArch struct { - FatArchHeader - *File -} - -// ErrNotFat is returned from NewFatFile or OpenFat when the file is not a -// universal binary but may be a thin binary, based on its magic number. -var ErrNotFat = &FormatError{0, "not a fat Mach-O file", nil} - -// NewFatFile creates a new FatFile for accessing all the Mach-O images in a -// universal binary. The Mach-O binary is expected to start at position 0 in -// the ReaderAt. -func NewFatFile(r io.ReaderAt) (*FatFile, error) { - var ff FatFile - sr := io.NewSectionReader(r, 0, 1<<63-1) - - // Read the fat_header struct, which is always in big endian. - // Start with the magic number. - err := binary.Read(sr, binary.BigEndian, &ff.Magic) - if err != nil { - return nil, &FormatError{0, "error reading magic number", nil} - } else if ff.Magic != MagicFat { - // See if this is a Mach-O file via its magic number. The magic - // must be converted to little endian first though. - var buf [4]byte - binary.BigEndian.PutUint32(buf[:], ff.Magic) - leMagic := binary.LittleEndian.Uint32(buf[:]) - if leMagic == Magic32 || leMagic == Magic64 { - return nil, ErrNotFat - } else { - return nil, &FormatError{0, "invalid magic number", nil} - } - } - offset := int64(4) - - // Read the number of FatArchHeaders that come after the fat_header. - var narch uint32 - err = binary.Read(sr, binary.BigEndian, &narch) - if err != nil { - return nil, &FormatError{offset, "invalid fat_header", nil} - } - offset += 4 - - if narch < 1 { - return nil, &FormatError{offset, "file contains no images", nil} - } - - // Combine the Cpu and SubCpu (both uint32) into a uint64 to make sure - // there are not duplicate architectures. - seenArches := make(map[uint64]bool, narch) - // Make sure that all images are for the same MH_ type. - var machoType Type - - // Following the fat_header comes narch fat_arch structs that index - // Mach-O images further in the file. - ff.Arches = make([]FatArch, narch) - for i := uint32(0); i < narch; i++ { - fa := &ff.Arches[i] - err = binary.Read(sr, binary.BigEndian, &fa.FatArchHeader) - if err != nil { - return nil, &FormatError{offset, "invalid fat_arch header", nil} - } - offset += fatArchHeaderSize - - fr := io.NewSectionReader(r, int64(fa.Offset), int64(fa.Size)) - fa.File, err = NewFile(fr) - if err != nil { - return nil, err - } - - // Make sure the architecture for this image is not duplicate. - seenArch := (uint64(fa.Cpu) << 32) | uint64(fa.SubCpu) - if o, k := seenArches[seenArch]; o || k { - return nil, &FormatError{offset, fmt.Sprintf("duplicate architecture cpu=%v, subcpu=%#x", fa.Cpu, fa.SubCpu), nil} - } - seenArches[seenArch] = true - - // Make sure the Mach-O type matches that of the first image. - if i == 0 { - machoType = fa.Type - } else { - if fa.Type != machoType { - return nil, &FormatError{offset, fmt.Sprintf("Mach-O type for architecture #%d (type=%#x) does not match first (type=%#x)", i, fa.Type, machoType), nil} - } - } - } - - return &ff, nil -} - -// OpenFat opens the named file using os.Open and prepares it for use as a Mach-O -// universal binary. -func OpenFat(name string) (ff *FatFile, err error) { - f, err := os.Open(name) - if err != nil { - return nil, err - } - ff, err = NewFatFile(f) - if err != nil { - f.Close() - return nil, err - } - ff.closer = f - return -} - -func (ff *FatFile) Close() error { - var err error - if ff.closer != nil { - err = ff.closer.Close() - ff.closer = nil - } - return err -} diff --git a/src/pkg/debug/macho/file.go b/src/pkg/debug/macho/file.go deleted file mode 100644 index eefb74444..000000000 --- a/src/pkg/debug/macho/file.go +++ /dev/null @@ -1,524 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package macho implements access to Mach-O object files. -package macho - -// High level access to low level data structures. - -import ( - "bytes" - "debug/dwarf" - "encoding/binary" - "fmt" - "io" - "os" -) - -// A File represents an open Mach-O file. -type File struct { - FileHeader - ByteOrder binary.ByteOrder - Loads []Load - Sections []*Section - - Symtab *Symtab - Dysymtab *Dysymtab - - closer io.Closer -} - -// A Load represents any Mach-O load command. -type Load interface { - Raw() []byte -} - -// A LoadBytes is the uninterpreted bytes of a Mach-O load command. -type LoadBytes []byte - -func (b LoadBytes) Raw() []byte { return b } - -// A SegmentHeader is the header for a Mach-O 32-bit or 64-bit load segment command. -type SegmentHeader struct { - Cmd LoadCmd - Len uint32 - Name string - Addr uint64 - Memsz uint64 - Offset uint64 - Filesz uint64 - Maxprot uint32 - Prot uint32 - Nsect uint32 - Flag uint32 -} - -// A Segment represents a Mach-O 32-bit or 64-bit load segment command. -type Segment struct { - LoadBytes - SegmentHeader - - // Embed ReaderAt for ReadAt method. - // Do not embed SectionReader directly - // to avoid having Read and Seek. - // If a client wants Read and Seek it must use - // Open() to avoid fighting over the seek offset - // with other clients. - io.ReaderAt - sr *io.SectionReader -} - -// Data reads and returns the contents of the segment. -func (s *Segment) Data() ([]byte, error) { - dat := make([]byte, s.sr.Size()) - n, err := s.sr.ReadAt(dat, 0) - if n == len(dat) { - err = nil - } - return dat[0:n], err -} - -// Open returns a new ReadSeeker reading the segment. -func (s *Segment) Open() io.ReadSeeker { return io.NewSectionReader(s.sr, 0, 1<<63-1) } - -type SectionHeader struct { - Name string - Seg string - Addr uint64 - Size uint64 - Offset uint32 - Align uint32 - Reloff uint32 - Nreloc uint32 - Flags uint32 -} - -type Section struct { - SectionHeader - - // Embed ReaderAt for ReadAt method. - // Do not embed SectionReader directly - // to avoid having Read and Seek. - // If a client wants Read and Seek it must use - // Open() to avoid fighting over the seek offset - // with other clients. - io.ReaderAt - sr *io.SectionReader -} - -// Data reads and returns the contents of the Mach-O section. -func (s *Section) Data() ([]byte, error) { - dat := make([]byte, s.sr.Size()) - n, err := s.sr.ReadAt(dat, 0) - if n == len(dat) { - err = nil - } - return dat[0:n], err -} - -// Open returns a new ReadSeeker reading the Mach-O section. -func (s *Section) Open() io.ReadSeeker { return io.NewSectionReader(s.sr, 0, 1<<63-1) } - -// A Dylib represents a Mach-O load dynamic library command. -type Dylib struct { - LoadBytes - Name string - Time uint32 - CurrentVersion uint32 - CompatVersion uint32 -} - -// A Symtab represents a Mach-O symbol table command. -type Symtab struct { - LoadBytes - SymtabCmd - Syms []Symbol -} - -// A Dysymtab represents a Mach-O dynamic symbol table command. -type Dysymtab struct { - LoadBytes - DysymtabCmd - IndirectSyms []uint32 // indices into Symtab.Syms -} - -/* - * Mach-O reader - */ - -// FormatError is returned by some operations if the data does -// not have the correct format for an object file. -type FormatError struct { - off int64 - msg string - val interface{} -} - -func (e *FormatError) Error() string { - msg := e.msg - if e.val != nil { - msg += fmt.Sprintf(" '%v'", e.val) - } - msg += fmt.Sprintf(" in record at byte %#x", e.off) - return msg -} - -// Open opens the named file using os.Open and prepares it for use as a Mach-O binary. -func Open(name string) (*File, error) { - f, err := os.Open(name) - if err != nil { - return nil, err - } - ff, err := NewFile(f) - if err != nil { - f.Close() - return nil, err - } - ff.closer = f - return ff, nil -} - -// Close closes the File. -// If the File was created using NewFile directly instead of Open, -// Close has no effect. -func (f *File) Close() error { - var err error - if f.closer != nil { - err = f.closer.Close() - f.closer = nil - } - return err -} - -// NewFile creates a new File for accessing a Mach-O binary in an underlying reader. -// The Mach-O binary is expected to start at position 0 in the ReaderAt. -func NewFile(r io.ReaderAt) (*File, error) { - f := new(File) - sr := io.NewSectionReader(r, 0, 1<<63-1) - - // Read and decode Mach magic to determine byte order, size. - // Magic32 and Magic64 differ only in the bottom bit. - var ident [4]byte - if _, err := r.ReadAt(ident[0:], 0); err != nil { - return nil, err - } - be := binary.BigEndian.Uint32(ident[0:]) - le := binary.LittleEndian.Uint32(ident[0:]) - switch Magic32 &^ 1 { - case be &^ 1: - f.ByteOrder = binary.BigEndian - f.Magic = be - case le &^ 1: - f.ByteOrder = binary.LittleEndian - f.Magic = le - default: - return nil, &FormatError{0, "invalid magic number", nil} - } - - // Read entire file header. - if err := binary.Read(sr, f.ByteOrder, &f.FileHeader); err != nil { - return nil, err - } - - // Then load commands. - offset := int64(fileHeaderSize32) - if f.Magic == Magic64 { - offset = fileHeaderSize64 - } - dat := make([]byte, f.Cmdsz) - if _, err := r.ReadAt(dat, offset); err != nil { - return nil, err - } - f.Loads = make([]Load, f.Ncmd) - bo := f.ByteOrder - for i := range f.Loads { - // Each load command begins with uint32 command and length. - if len(dat) < 8 { - return nil, &FormatError{offset, "command block too small", nil} - } - cmd, siz := LoadCmd(bo.Uint32(dat[0:4])), bo.Uint32(dat[4:8]) - if siz < 8 || siz > uint32(len(dat)) { - return nil, &FormatError{offset, "invalid command block size", nil} - } - var cmddat []byte - cmddat, dat = dat[0:siz], dat[siz:] - offset += int64(siz) - var s *Segment - switch cmd { - default: - f.Loads[i] = LoadBytes(cmddat) - - case LoadCmdDylib: - var hdr DylibCmd - b := bytes.NewReader(cmddat) - if err := binary.Read(b, bo, &hdr); err != nil { - return nil, err - } - l := new(Dylib) - if hdr.Name >= uint32(len(cmddat)) { - return nil, &FormatError{offset, "invalid name in dynamic library command", hdr.Name} - } - l.Name = cstring(cmddat[hdr.Name:]) - l.Time = hdr.Time - l.CurrentVersion = hdr.CurrentVersion - l.CompatVersion = hdr.CompatVersion - l.LoadBytes = LoadBytes(cmddat) - f.Loads[i] = l - - case LoadCmdSymtab: - var hdr SymtabCmd - b := bytes.NewReader(cmddat) - if err := binary.Read(b, bo, &hdr); err != nil { - return nil, err - } - strtab := make([]byte, hdr.Strsize) - if _, err := r.ReadAt(strtab, int64(hdr.Stroff)); err != nil { - return nil, err - } - var symsz int - if f.Magic == Magic64 { - symsz = 16 - } else { - symsz = 12 - } - symdat := make([]byte, int(hdr.Nsyms)*symsz) - if _, err := r.ReadAt(symdat, int64(hdr.Symoff)); err != nil { - return nil, err - } - st, err := f.parseSymtab(symdat, strtab, cmddat, &hdr, offset) - if err != nil { - return nil, err - } - f.Loads[i] = st - f.Symtab = st - - case LoadCmdDysymtab: - var hdr DysymtabCmd - b := bytes.NewReader(cmddat) - if err := binary.Read(b, bo, &hdr); err != nil { - return nil, err - } - dat := make([]byte, hdr.Nindirectsyms*4) - if _, err := r.ReadAt(dat, int64(hdr.Indirectsymoff)); err != nil { - return nil, err - } - x := make([]uint32, hdr.Nindirectsyms) - if err := binary.Read(bytes.NewReader(dat), bo, x); err != nil { - return nil, err - } - st := new(Dysymtab) - st.LoadBytes = LoadBytes(cmddat) - st.DysymtabCmd = hdr - st.IndirectSyms = x - f.Loads[i] = st - f.Dysymtab = st - - case LoadCmdSegment: - var seg32 Segment32 - b := bytes.NewReader(cmddat) - if err := binary.Read(b, bo, &seg32); err != nil { - return nil, err - } - s = new(Segment) - s.LoadBytes = cmddat - s.Cmd = cmd - s.Len = siz - s.Name = cstring(seg32.Name[0:]) - s.Addr = uint64(seg32.Addr) - s.Memsz = uint64(seg32.Memsz) - s.Offset = uint64(seg32.Offset) - s.Filesz = uint64(seg32.Filesz) - s.Maxprot = seg32.Maxprot - s.Prot = seg32.Prot - s.Nsect = seg32.Nsect - s.Flag = seg32.Flag - f.Loads[i] = s - for i := 0; i < int(s.Nsect); i++ { - var sh32 Section32 - if err := binary.Read(b, bo, &sh32); err != nil { - return nil, err - } - sh := new(Section) - sh.Name = cstring(sh32.Name[0:]) - sh.Seg = cstring(sh32.Seg[0:]) - sh.Addr = uint64(sh32.Addr) - sh.Size = uint64(sh32.Size) - sh.Offset = sh32.Offset - sh.Align = sh32.Align - sh.Reloff = sh32.Reloff - sh.Nreloc = sh32.Nreloc - sh.Flags = sh32.Flags - f.pushSection(sh, r) - } - - case LoadCmdSegment64: - var seg64 Segment64 - b := bytes.NewReader(cmddat) - if err := binary.Read(b, bo, &seg64); err != nil { - return nil, err - } - s = new(Segment) - s.LoadBytes = cmddat - s.Cmd = cmd - s.Len = siz - s.Name = cstring(seg64.Name[0:]) - s.Addr = seg64.Addr - s.Memsz = seg64.Memsz - s.Offset = seg64.Offset - s.Filesz = seg64.Filesz - s.Maxprot = seg64.Maxprot - s.Prot = seg64.Prot - s.Nsect = seg64.Nsect - s.Flag = seg64.Flag - f.Loads[i] = s - for i := 0; i < int(s.Nsect); i++ { - var sh64 Section64 - if err := binary.Read(b, bo, &sh64); err != nil { - return nil, err - } - sh := new(Section) - sh.Name = cstring(sh64.Name[0:]) - sh.Seg = cstring(sh64.Seg[0:]) - sh.Addr = sh64.Addr - sh.Size = sh64.Size - sh.Offset = sh64.Offset - sh.Align = sh64.Align - sh.Reloff = sh64.Reloff - sh.Nreloc = sh64.Nreloc - sh.Flags = sh64.Flags - f.pushSection(sh, r) - } - } - if s != nil { - s.sr = io.NewSectionReader(r, int64(s.Offset), int64(s.Filesz)) - s.ReaderAt = s.sr - } - } - return f, nil -} - -func (f *File) parseSymtab(symdat, strtab, cmddat []byte, hdr *SymtabCmd, offset int64) (*Symtab, error) { - bo := f.ByteOrder - symtab := make([]Symbol, hdr.Nsyms) - b := bytes.NewReader(symdat) - for i := range symtab { - var n Nlist64 - if f.Magic == Magic64 { - if err := binary.Read(b, bo, &n); err != nil { - return nil, err - } - } else { - var n32 Nlist32 - if err := binary.Read(b, bo, &n32); err != nil { - return nil, err - } - n.Name = n32.Name - n.Type = n32.Type - n.Sect = n32.Sect - n.Desc = n32.Desc - n.Value = uint64(n32.Value) - } - sym := &symtab[i] - if n.Name >= uint32(len(strtab)) { - return nil, &FormatError{offset, "invalid name in symbol table", n.Name} - } - sym.Name = cstring(strtab[n.Name:]) - sym.Type = n.Type - sym.Sect = n.Sect - sym.Desc = n.Desc - sym.Value = n.Value - } - st := new(Symtab) - st.LoadBytes = LoadBytes(cmddat) - st.Syms = symtab - return st, nil -} - -func (f *File) pushSection(sh *Section, r io.ReaderAt) { - f.Sections = append(f.Sections, sh) - sh.sr = io.NewSectionReader(r, int64(sh.Offset), int64(sh.Size)) - sh.ReaderAt = sh.sr -} - -func cstring(b []byte) string { - var i int - for i = 0; i < len(b) && b[i] != 0; i++ { - } - return string(b[0:i]) -} - -// Segment returns the first Segment with the given name, or nil if no such segment exists. -func (f *File) Segment(name string) *Segment { - for _, l := range f.Loads { - if s, ok := l.(*Segment); ok && s.Name == name { - return s - } - } - return nil -} - -// Section returns the first section with the given name, or nil if no such -// section exists. -func (f *File) Section(name string) *Section { - for _, s := range f.Sections { - if s.Name == name { - return s - } - } - return nil -} - -// DWARF returns the DWARF debug information for the Mach-O file. -func (f *File) DWARF() (*dwarf.Data, error) { - // There are many other DWARF sections, but these - // are the required ones, and the debug/dwarf package - // does not use the others, so don't bother loading them. - var names = [...]string{"abbrev", "info", "str"} - var dat [len(names)][]byte - for i, name := range names { - name = "__debug_" + name - s := f.Section(name) - if s == nil { - continue - } - b, err := s.Data() - if err != nil && uint64(len(b)) < s.Size { - return nil, err - } - dat[i] = b - } - - abbrev, info, str := dat[0], dat[1], dat[2] - return dwarf.New(abbrev, nil, nil, info, nil, nil, nil, str) -} - -// ImportedSymbols returns the names of all symbols -// referred to by the binary f that are expected to be -// satisfied by other libraries at dynamic load time. -func (f *File) ImportedSymbols() ([]string, error) { - if f.Dysymtab == nil || f.Symtab == nil { - return nil, &FormatError{0, "missing symbol table", nil} - } - - st := f.Symtab - dt := f.Dysymtab - var all []string - for _, s := range st.Syms[dt.Iundefsym : dt.Iundefsym+dt.Nundefsym] { - all = append(all, s.Name) - } - return all, nil -} - -// ImportedLibraries returns the paths of all libraries -// referred to by the binary f that are expected to be -// linked with the binary at dynamic link time. -func (f *File) ImportedLibraries() ([]string, error) { - var all []string - for _, l := range f.Loads { - if lib, ok := l.(*Dylib); ok { - all = append(all, lib.Name) - } - } - return all, nil -} diff --git a/src/pkg/debug/macho/file_test.go b/src/pkg/debug/macho/file_test.go deleted file mode 100644 index 4797780ce..000000000 --- a/src/pkg/debug/macho/file_test.go +++ /dev/null @@ -1,210 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package macho - -import ( - "reflect" - "testing" -) - -type fileTest struct { - file string - hdr FileHeader - segments []*SegmentHeader - sections []*SectionHeader -} - -var fileTests = []fileTest{ - { - "testdata/gcc-386-darwin-exec", - FileHeader{0xfeedface, Cpu386, 0x3, 0x2, 0xc, 0x3c0, 0x85}, - []*SegmentHeader{ - {LoadCmdSegment, 0x38, "__PAGEZERO", 0x0, 0x1000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, - {LoadCmdSegment, 0xc0, "__TEXT", 0x1000, 0x1000, 0x0, 0x1000, 0x7, 0x5, 0x2, 0x0}, - {LoadCmdSegment, 0xc0, "__DATA", 0x2000, 0x1000, 0x1000, 0x1000, 0x7, 0x3, 0x2, 0x0}, - {LoadCmdSegment, 0x7c, "__IMPORT", 0x3000, 0x1000, 0x2000, 0x1000, 0x7, 0x7, 0x1, 0x0}, - {LoadCmdSegment, 0x38, "__LINKEDIT", 0x4000, 0x1000, 0x3000, 0x12c, 0x7, 0x1, 0x0, 0x0}, - nil, - nil, - nil, - nil, - nil, - nil, - nil, - }, - []*SectionHeader{ - {"__text", "__TEXT", 0x1f68, 0x88, 0xf68, 0x2, 0x0, 0x0, 0x80000400}, - {"__cstring", "__TEXT", 0x1ff0, 0xd, 0xff0, 0x0, 0x0, 0x0, 0x2}, - {"__data", "__DATA", 0x2000, 0x14, 0x1000, 0x2, 0x0, 0x0, 0x0}, - {"__dyld", "__DATA", 0x2014, 0x1c, 0x1014, 0x2, 0x0, 0x0, 0x0}, - {"__jump_table", "__IMPORT", 0x3000, 0xa, 0x2000, 0x6, 0x0, 0x0, 0x4000008}, - }, - }, - { - "testdata/gcc-amd64-darwin-exec", - FileHeader{0xfeedfacf, CpuAmd64, 0x80000003, 0x2, 0xb, 0x568, 0x85}, - []*SegmentHeader{ - {LoadCmdSegment64, 0x48, "__PAGEZERO", 0x0, 0x100000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, - {LoadCmdSegment64, 0x1d8, "__TEXT", 0x100000000, 0x1000, 0x0, 0x1000, 0x7, 0x5, 0x5, 0x0}, - {LoadCmdSegment64, 0x138, "__DATA", 0x100001000, 0x1000, 0x1000, 0x1000, 0x7, 0x3, 0x3, 0x0}, - {LoadCmdSegment64, 0x48, "__LINKEDIT", 0x100002000, 0x1000, 0x2000, 0x140, 0x7, 0x1, 0x0, 0x0}, - nil, - nil, - nil, - nil, - nil, - nil, - nil, - }, - []*SectionHeader{ - {"__text", "__TEXT", 0x100000f14, 0x6d, 0xf14, 0x2, 0x0, 0x0, 0x80000400}, - {"__symbol_stub1", "__TEXT", 0x100000f81, 0xc, 0xf81, 0x0, 0x0, 0x0, 0x80000408}, - {"__stub_helper", "__TEXT", 0x100000f90, 0x18, 0xf90, 0x2, 0x0, 0x0, 0x0}, - {"__cstring", "__TEXT", 0x100000fa8, 0xd, 0xfa8, 0x0, 0x0, 0x0, 0x2}, - {"__eh_frame", "__TEXT", 0x100000fb8, 0x48, 0xfb8, 0x3, 0x0, 0x0, 0x6000000b}, - {"__data", "__DATA", 0x100001000, 0x1c, 0x1000, 0x3, 0x0, 0x0, 0x0}, - {"__dyld", "__DATA", 0x100001020, 0x38, 0x1020, 0x3, 0x0, 0x0, 0x0}, - {"__la_symbol_ptr", "__DATA", 0x100001058, 0x10, 0x1058, 0x2, 0x0, 0x0, 0x7}, - }, - }, - { - "testdata/gcc-amd64-darwin-exec-debug", - FileHeader{0xfeedfacf, CpuAmd64, 0x80000003, 0xa, 0x4, 0x5a0, 0}, - []*SegmentHeader{ - nil, - {LoadCmdSegment64, 0x1d8, "__TEXT", 0x100000000, 0x1000, 0x0, 0x0, 0x7, 0x5, 0x5, 0x0}, - {LoadCmdSegment64, 0x138, "__DATA", 0x100001000, 0x1000, 0x0, 0x0, 0x7, 0x3, 0x3, 0x0}, - {LoadCmdSegment64, 0x278, "__DWARF", 0x100002000, 0x1000, 0x1000, 0x1bc, 0x7, 0x3, 0x7, 0x0}, - }, - []*SectionHeader{ - {"__text", "__TEXT", 0x100000f14, 0x0, 0x0, 0x2, 0x0, 0x0, 0x80000400}, - {"__symbol_stub1", "__TEXT", 0x100000f81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000408}, - {"__stub_helper", "__TEXT", 0x100000f90, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0}, - {"__cstring", "__TEXT", 0x100000fa8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, - {"__eh_frame", "__TEXT", 0x100000fb8, 0x0, 0x0, 0x3, 0x0, 0x0, 0x6000000b}, - {"__data", "__DATA", 0x100001000, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0}, - {"__dyld", "__DATA", 0x100001020, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0}, - {"__la_symbol_ptr", "__DATA", 0x100001058, 0x0, 0x0, 0x2, 0x0, 0x0, 0x7}, - {"__debug_abbrev", "__DWARF", 0x100002000, 0x36, 0x1000, 0x0, 0x0, 0x0, 0x0}, - {"__debug_aranges", "__DWARF", 0x100002036, 0x30, 0x1036, 0x0, 0x0, 0x0, 0x0}, - {"__debug_frame", "__DWARF", 0x100002066, 0x40, 0x1066, 0x0, 0x0, 0x0, 0x0}, - {"__debug_info", "__DWARF", 0x1000020a6, 0x54, 0x10a6, 0x0, 0x0, 0x0, 0x0}, - {"__debug_line", "__DWARF", 0x1000020fa, 0x47, 0x10fa, 0x0, 0x0, 0x0, 0x0}, - {"__debug_pubnames", "__DWARF", 0x100002141, 0x1b, 0x1141, 0x0, 0x0, 0x0, 0x0}, - {"__debug_str", "__DWARF", 0x10000215c, 0x60, 0x115c, 0x0, 0x0, 0x0, 0x0}, - }, - }, -} - -func TestOpen(t *testing.T) { - for i := range fileTests { - tt := &fileTests[i] - - f, err := Open(tt.file) - if err != nil { - t.Error(err) - continue - } - if !reflect.DeepEqual(f.FileHeader, tt.hdr) { - t.Errorf("open %s:\n\thave %#v\n\twant %#v\n", tt.file, f.FileHeader, tt.hdr) - continue - } - for i, l := range f.Loads { - if i >= len(tt.segments) { - break - } - sh := tt.segments[i] - s, ok := l.(*Segment) - if sh == nil { - if ok { - t.Errorf("open %s, section %d: skipping %#v\n", tt.file, i, &s.SegmentHeader) - } - continue - } - if !ok { - t.Errorf("open %s, section %d: not *Segment\n", tt.file, i) - continue - } - have := &s.SegmentHeader - want := sh - if !reflect.DeepEqual(have, want) { - t.Errorf("open %s, segment %d:\n\thave %#v\n\twant %#v\n", tt.file, i, have, want) - } - } - tn := len(tt.segments) - fn := len(f.Loads) - if tn != fn { - t.Errorf("open %s: len(Loads) = %d, want %d", tt.file, fn, tn) - } - - for i, sh := range f.Sections { - if i >= len(tt.sections) { - break - } - have := &sh.SectionHeader - want := tt.sections[i] - if !reflect.DeepEqual(have, want) { - t.Errorf("open %s, section %d:\n\thave %#v\n\twant %#v\n", tt.file, i, have, want) - } - } - tn = len(tt.sections) - fn = len(f.Sections) - if tn != fn { - t.Errorf("open %s: len(Sections) = %d, want %d", tt.file, fn, tn) - } - - } -} - -func TestOpenFailure(t *testing.T) { - filename := "file.go" // not a Mach-O file - _, err := Open(filename) // don't crash - if err == nil { - t.Errorf("open %s: succeeded unexpectedly", filename) - } -} - -func TestOpenFat(t *testing.T) { - ff, err := OpenFat("testdata/fat-gcc-386-amd64-darwin-exec") - if err != nil { - t.Fatal(err) - } - - if ff.Magic != MagicFat { - t.Errorf("OpenFat: got magic number %#x, want %#x", ff.Magic, MagicFat) - } - if len(ff.Arches) != 2 { - t.Errorf("OpenFat: got %d architectures, want 2", len(ff.Arches)) - } - - for i := range ff.Arches { - arch := &ff.Arches[i] - ftArch := &fileTests[i] - - if arch.Cpu != ftArch.hdr.Cpu || arch.SubCpu != ftArch.hdr.SubCpu { - t.Errorf("OpenFat: architecture #%d got cpu=%#x subtype=%#x, expected cpu=%#x, subtype=%#x", i, arch.Cpu, arch.SubCpu, ftArch.hdr.Cpu, ftArch.hdr.SubCpu) - } - - if !reflect.DeepEqual(arch.FileHeader, ftArch.hdr) { - t.Errorf("OpenFat header:\n\tgot %#v\n\twant %#v\n", arch.FileHeader, ftArch.hdr) - } - } -} - -func TestOpenFatFailure(t *testing.T) { - filename := "file.go" // not a Mach-O file - if _, err := OpenFat(filename); err == nil { - t.Errorf("OpenFat %s: succeeded unexpectedly", filename) - } - - filename = "testdata/gcc-386-darwin-exec" // not a fat Mach-O - ff, err := OpenFat(filename) - if err != ErrNotFat { - t.Errorf("OpenFat %s: got %v, want ErrNotFat", filename, err) - } - if ff != nil { - t.Errorf("OpenFat %s: got %v, want nil", filename, ff) - } -} diff --git a/src/pkg/debug/macho/macho.go b/src/pkg/debug/macho/macho.go deleted file mode 100644 index d9678c8ed..000000000 --- a/src/pkg/debug/macho/macho.go +++ /dev/null @@ -1,316 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Mach-O header data structures -// http://developer.apple.com/mac/library/documentation/DeveloperTools/Conceptual/MachORuntime/Reference/reference.html - -package macho - -import "strconv" - -// A FileHeader represents a Mach-O file header. -type FileHeader struct { - Magic uint32 - Cpu Cpu - SubCpu uint32 - Type Type - Ncmd uint32 - Cmdsz uint32 - Flags uint32 -} - -const ( - fileHeaderSize32 = 7 * 4 - fileHeaderSize64 = 8 * 4 -) - -const ( - Magic32 uint32 = 0xfeedface - Magic64 uint32 = 0xfeedfacf - MagicFat uint32 = 0xcafebabe -) - -// A Type is the Mach-O file type, e.g. an object file, executable, or dynamic library. -type Type uint32 - -const ( - TypeObj Type = 1 - TypeExec Type = 2 - TypeDylib Type = 6 - TypeBundle Type = 8 -) - -// A Cpu is a Mach-O cpu type. -type Cpu uint32 - -const cpuArch64 = 0x01000000 - -const ( - Cpu386 Cpu = 7 - CpuAmd64 Cpu = Cpu386 | cpuArch64 - CpuArm Cpu = 12 - CpuPpc Cpu = 18 - CpuPpc64 Cpu = CpuPpc | cpuArch64 -) - -var cpuStrings = []intName{ - {uint32(Cpu386), "Cpu386"}, - {uint32(CpuAmd64), "CpuAmd64"}, - {uint32(CpuArm), "CpuArm"}, - {uint32(CpuPpc), "CpuPpc"}, - {uint32(CpuPpc64), "CpuPpc64"}, -} - -func (i Cpu) String() string { return stringName(uint32(i), cpuStrings, false) } -func (i Cpu) GoString() string { return stringName(uint32(i), cpuStrings, true) } - -// A LoadCmd is a Mach-O load command. -type LoadCmd uint32 - -const ( - LoadCmdSegment LoadCmd = 1 - LoadCmdSymtab LoadCmd = 2 - LoadCmdThread LoadCmd = 4 - LoadCmdUnixThread LoadCmd = 5 // thread+stack - LoadCmdDysymtab LoadCmd = 11 - LoadCmdDylib LoadCmd = 12 - LoadCmdDylinker LoadCmd = 15 - LoadCmdSegment64 LoadCmd = 25 -) - -var cmdStrings = []intName{ - {uint32(LoadCmdSegment), "LoadCmdSegment"}, - {uint32(LoadCmdThread), "LoadCmdThread"}, - {uint32(LoadCmdUnixThread), "LoadCmdUnixThread"}, - {uint32(LoadCmdDylib), "LoadCmdDylib"}, - {uint32(LoadCmdSegment64), "LoadCmdSegment64"}, -} - -func (i LoadCmd) String() string { return stringName(uint32(i), cmdStrings, false) } -func (i LoadCmd) GoString() string { return stringName(uint32(i), cmdStrings, true) } - -// A Segment64 is a 64-bit Mach-O segment load command. -type Segment64 struct { - Cmd LoadCmd - Len uint32 - Name [16]byte - Addr uint64 - Memsz uint64 - Offset uint64 - Filesz uint64 - Maxprot uint32 - Prot uint32 - Nsect uint32 - Flag uint32 -} - -// A Segment32 is a 32-bit Mach-O segment load command. -type Segment32 struct { - Cmd LoadCmd - Len uint32 - Name [16]byte - Addr uint32 - Memsz uint32 - Offset uint32 - Filesz uint32 - Maxprot uint32 - Prot uint32 - Nsect uint32 - Flag uint32 -} - -// A DylibCmd is a Mach-O load dynamic library command. -type DylibCmd struct { - Cmd LoadCmd - Len uint32 - Name uint32 - Time uint32 - CurrentVersion uint32 - CompatVersion uint32 -} - -// A Section32 is a 32-bit Mach-O section header. -type Section32 struct { - Name [16]byte - Seg [16]byte - Addr uint32 - Size uint32 - Offset uint32 - Align uint32 - Reloff uint32 - Nreloc uint32 - Flags uint32 - Reserve1 uint32 - Reserve2 uint32 -} - -// A Section32 is a 64-bit Mach-O section header. -type Section64 struct { - Name [16]byte - Seg [16]byte - Addr uint64 - Size uint64 - Offset uint32 - Align uint32 - Reloff uint32 - Nreloc uint32 - Flags uint32 - Reserve1 uint32 - Reserve2 uint32 - Reserve3 uint32 -} - -// A SymtabCmd is a Mach-O symbol table command. -type SymtabCmd struct { - Cmd LoadCmd - Len uint32 - Symoff uint32 - Nsyms uint32 - Stroff uint32 - Strsize uint32 -} - -// A DysymtabCmd is a Mach-O dynamic symbol table command. -type DysymtabCmd struct { - Cmd LoadCmd - Len uint32 - Ilocalsym uint32 - Nlocalsym uint32 - Iextdefsym uint32 - Nextdefsym uint32 - Iundefsym uint32 - Nundefsym uint32 - Tocoffset uint32 - Ntoc uint32 - Modtaboff uint32 - Nmodtab uint32 - Extrefsymoff uint32 - Nextrefsyms uint32 - Indirectsymoff uint32 - Nindirectsyms uint32 - Extreloff uint32 - Nextrel uint32 - Locreloff uint32 - Nlocrel uint32 -} - -// An Nlist32 is a Mach-O 32-bit symbol table entry. -type Nlist32 struct { - Name uint32 - Type uint8 - Sect uint8 - Desc uint16 - Value uint32 -} - -// An Nlist64 is a Mach-O 64-bit symbol table entry. -type Nlist64 struct { - Name uint32 - Type uint8 - Sect uint8 - Desc uint16 - Value uint64 -} - -// A Symbol is a Mach-O 32-bit or 64-bit symbol table entry. -type Symbol struct { - Name string - Type uint8 - Sect uint8 - Desc uint16 - Value uint64 -} - -// A Thread is a Mach-O thread state command. -type Thread struct { - Cmd LoadCmd - Len uint32 - Type uint32 - Data []uint32 -} - -// Regs386 is the Mach-O 386 register structure. -type Regs386 struct { - AX uint32 - BX uint32 - CX uint32 - DX uint32 - DI uint32 - SI uint32 - BP uint32 - SP uint32 - SS uint32 - FLAGS uint32 - IP uint32 - CS uint32 - DS uint32 - ES uint32 - FS uint32 - GS uint32 -} - -// RegsAMD64 is the Mach-O AMD64 register structure. -type RegsAMD64 struct { - AX uint64 - BX uint64 - CX uint64 - DX uint64 - DI uint64 - SI uint64 - BP uint64 - SP uint64 - R8 uint64 - R9 uint64 - R10 uint64 - R11 uint64 - R12 uint64 - R13 uint64 - R14 uint64 - R15 uint64 - IP uint64 - FLAGS uint64 - CS uint64 - FS uint64 - GS uint64 -} - -type intName struct { - i uint32 - s string -} - -func stringName(i uint32, names []intName, goSyntax bool) string { - for _, n := range names { - if n.i == i { - if goSyntax { - return "macho." + n.s - } - return n.s - } - } - return strconv.FormatUint(uint64(i), 10) -} - -func flagName(i uint32, names []intName, goSyntax bool) string { - s := "" - for _, n := range names { - if n.i&i == n.i { - if len(s) > 0 { - s += "+" - } - if goSyntax { - s += "macho." - } - s += n.s - i -= n.i - } - } - if len(s) == 0 { - return "0x" + strconv.FormatUint(uint64(i), 16) - } - if i != 0 { - s += "+0x" + strconv.FormatUint(uint64(i), 16) - } - return s -} diff --git a/src/pkg/debug/macho/testdata/fat-gcc-386-amd64-darwin-exec b/src/pkg/debug/macho/testdata/fat-gcc-386-amd64-darwin-exec Binary files differdeleted file mode 100644 index 7efd19300..000000000 --- a/src/pkg/debug/macho/testdata/fat-gcc-386-amd64-darwin-exec +++ /dev/null diff --git a/src/pkg/debug/macho/testdata/gcc-386-darwin-exec b/src/pkg/debug/macho/testdata/gcc-386-darwin-exec Binary files differdeleted file mode 100755 index 03ba1bafa..000000000 --- a/src/pkg/debug/macho/testdata/gcc-386-darwin-exec +++ /dev/null diff --git a/src/pkg/debug/macho/testdata/gcc-amd64-darwin-exec b/src/pkg/debug/macho/testdata/gcc-amd64-darwin-exec Binary files differdeleted file mode 100755 index 5155a5a26..000000000 --- a/src/pkg/debug/macho/testdata/gcc-amd64-darwin-exec +++ /dev/null diff --git a/src/pkg/debug/macho/testdata/gcc-amd64-darwin-exec-debug b/src/pkg/debug/macho/testdata/gcc-amd64-darwin-exec-debug Binary files differdeleted file mode 100644 index a47d3aef7..000000000 --- a/src/pkg/debug/macho/testdata/gcc-amd64-darwin-exec-debug +++ /dev/null diff --git a/src/pkg/debug/macho/testdata/hello.c b/src/pkg/debug/macho/testdata/hello.c deleted file mode 100644 index a689d3644..000000000 --- a/src/pkg/debug/macho/testdata/hello.c +++ /dev/null @@ -1,8 +0,0 @@ -#include <stdio.h> - -int -main(void) -{ - printf("hello, world\n"); - return 0; -} diff --git a/src/pkg/debug/pe/file.go b/src/pkg/debug/pe/file.go deleted file mode 100644 index ce6f1408f..000000000 --- a/src/pkg/debug/pe/file.go +++ /dev/null @@ -1,390 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package pe implements access to PE (Microsoft Windows Portable Executable) files. -package pe - -import ( - "debug/dwarf" - "encoding/binary" - "errors" - "fmt" - "io" - "os" - "strconv" - "unsafe" -) - -// A File represents an open PE file. -type File struct { - FileHeader - OptionalHeader interface{} // of type *OptionalHeader32 or *OptionalHeader64 - Sections []*Section - Symbols []*Symbol - - closer io.Closer -} - -type SectionHeader struct { - Name string - VirtualSize uint32 - VirtualAddress uint32 - Size uint32 - Offset uint32 - PointerToRelocations uint32 - PointerToLineNumbers uint32 - NumberOfRelocations uint16 - NumberOfLineNumbers uint16 - Characteristics uint32 -} - -type Section struct { - SectionHeader - - // Embed ReaderAt for ReadAt method. - // Do not embed SectionReader directly - // to avoid having Read and Seek. - // If a client wants Read and Seek it must use - // Open() to avoid fighting over the seek offset - // with other clients. - io.ReaderAt - sr *io.SectionReader -} - -type Symbol struct { - Name string - Value uint32 - SectionNumber int16 - Type uint16 - StorageClass uint8 -} - -type ImportDirectory struct { - OriginalFirstThunk uint32 - TimeDateStamp uint32 - ForwarderChain uint32 - Name uint32 - FirstThunk uint32 - - dll string -} - -// Data reads and returns the contents of the PE section. -func (s *Section) Data() ([]byte, error) { - dat := make([]byte, s.sr.Size()) - n, err := s.sr.ReadAt(dat, 0) - if n == len(dat) { - err = nil - } - return dat[0:n], err -} - -// Open returns a new ReadSeeker reading the PE section. -func (s *Section) Open() io.ReadSeeker { return io.NewSectionReader(s.sr, 0, 1<<63-1) } - -type FormatError struct { - off int64 - msg string - val interface{} -} - -func (e *FormatError) Error() string { - msg := e.msg - if e.val != nil { - msg += fmt.Sprintf(" '%v'", e.val) - } - msg += fmt.Sprintf(" in record at byte %#x", e.off) - return msg -} - -// Open opens the named file using os.Open and prepares it for use as a PE binary. -func Open(name string) (*File, error) { - f, err := os.Open(name) - if err != nil { - return nil, err - } - ff, err := NewFile(f) - if err != nil { - f.Close() - return nil, err - } - ff.closer = f - return ff, nil -} - -// Close closes the File. -// If the File was created using NewFile directly instead of Open, -// Close has no effect. -func (f *File) Close() error { - var err error - if f.closer != nil { - err = f.closer.Close() - f.closer = nil - } - return err -} - -// NewFile creates a new File for accessing a PE binary in an underlying reader. -func NewFile(r io.ReaderAt) (*File, error) { - f := new(File) - sr := io.NewSectionReader(r, 0, 1<<63-1) - - var dosheader [96]byte - if _, err := r.ReadAt(dosheader[0:], 0); err != nil { - return nil, err - } - var base int64 - if dosheader[0] == 'M' && dosheader[1] == 'Z' { - signoff := int64(binary.LittleEndian.Uint32(dosheader[0x3c:])) - var sign [4]byte - r.ReadAt(sign[:], signoff) - if !(sign[0] == 'P' && sign[1] == 'E' && sign[2] == 0 && sign[3] == 0) { - return nil, errors.New("Invalid PE File Format.") - } - base = signoff + 4 - } else { - base = int64(0) - } - sr.Seek(base, os.SEEK_SET) - if err := binary.Read(sr, binary.LittleEndian, &f.FileHeader); err != nil { - return nil, err - } - if f.FileHeader.Machine != IMAGE_FILE_MACHINE_UNKNOWN && f.FileHeader.Machine != IMAGE_FILE_MACHINE_AMD64 && f.FileHeader.Machine != IMAGE_FILE_MACHINE_I386 { - return nil, errors.New("Invalid PE File Format.") - } - - var ss []byte - if f.FileHeader.NumberOfSymbols > 0 { - // Get COFF string table, which is located at the end of the COFF symbol table. - sr.Seek(int64(f.FileHeader.PointerToSymbolTable+COFFSymbolSize*f.FileHeader.NumberOfSymbols), os.SEEK_SET) - var l uint32 - if err := binary.Read(sr, binary.LittleEndian, &l); err != nil { - return nil, err - } - ss = make([]byte, l) - if _, err := r.ReadAt(ss, int64(f.FileHeader.PointerToSymbolTable+COFFSymbolSize*f.FileHeader.NumberOfSymbols)); err != nil { - return nil, err - } - - // Process COFF symbol table. - sr.Seek(int64(f.FileHeader.PointerToSymbolTable), os.SEEK_SET) - aux := uint8(0) - for i := 0; i < int(f.FileHeader.NumberOfSymbols); i++ { - cs := new(COFFSymbol) - if err := binary.Read(sr, binary.LittleEndian, cs); err != nil { - return nil, err - } - if aux > 0 { - aux-- - continue - } - var name string - if cs.Name[0] == 0 && cs.Name[1] == 0 && cs.Name[2] == 0 && cs.Name[3] == 0 { - si := int(binary.LittleEndian.Uint32(cs.Name[4:])) - name, _ = getString(ss, si) - } else { - name = cstring(cs.Name[:]) - } - aux = cs.NumberOfAuxSymbols - s := &Symbol{ - Name: name, - Value: cs.Value, - SectionNumber: cs.SectionNumber, - Type: cs.Type, - StorageClass: cs.StorageClass, - } - f.Symbols = append(f.Symbols, s) - } - } - - // Read optional header. - sr.Seek(base, os.SEEK_SET) - if err := binary.Read(sr, binary.LittleEndian, &f.FileHeader); err != nil { - return nil, err - } - var oh32 OptionalHeader32 - var oh64 OptionalHeader64 - switch uintptr(f.FileHeader.SizeOfOptionalHeader) { - case unsafe.Sizeof(oh32): - if err := binary.Read(sr, binary.LittleEndian, &oh32); err != nil { - return nil, err - } - if oh32.Magic != 0x10b { // PE32 - return nil, fmt.Errorf("pe32 optional header has unexpected Magic of 0x%x", oh32.Magic) - } - f.OptionalHeader = &oh32 - case unsafe.Sizeof(oh64): - if err := binary.Read(sr, binary.LittleEndian, &oh64); err != nil { - return nil, err - } - if oh64.Magic != 0x20b { // PE32+ - return nil, fmt.Errorf("pe32+ optional header has unexpected Magic of 0x%x", oh64.Magic) - } - f.OptionalHeader = &oh64 - } - - // Process sections. - f.Sections = make([]*Section, f.FileHeader.NumberOfSections) - for i := 0; i < int(f.FileHeader.NumberOfSections); i++ { - sh := new(SectionHeader32) - if err := binary.Read(sr, binary.LittleEndian, sh); err != nil { - return nil, err - } - var name string - if sh.Name[0] == '\x2F' { - si, _ := strconv.Atoi(cstring(sh.Name[1:])) - name, _ = getString(ss, si) - } else { - name = cstring(sh.Name[0:]) - } - s := new(Section) - s.SectionHeader = SectionHeader{ - Name: name, - VirtualSize: sh.VirtualSize, - VirtualAddress: sh.VirtualAddress, - Size: sh.SizeOfRawData, - Offset: sh.PointerToRawData, - PointerToRelocations: sh.PointerToRelocations, - PointerToLineNumbers: sh.PointerToLineNumbers, - NumberOfRelocations: sh.NumberOfRelocations, - NumberOfLineNumbers: sh.NumberOfLineNumbers, - Characteristics: sh.Characteristics, - } - s.sr = io.NewSectionReader(r, int64(s.SectionHeader.Offset), int64(s.SectionHeader.Size)) - s.ReaderAt = s.sr - f.Sections[i] = s - } - return f, nil -} - -func cstring(b []byte) string { - var i int - for i = 0; i < len(b) && b[i] != 0; i++ { - } - return string(b[0:i]) -} - -// getString extracts a string from symbol string table. -func getString(section []byte, start int) (string, bool) { - if start < 0 || start >= len(section) { - return "", false - } - - for end := start; end < len(section); end++ { - if section[end] == 0 { - return string(section[start:end]), true - } - } - return "", false -} - -// Section returns the first section with the given name, or nil if no such -// section exists. -func (f *File) Section(name string) *Section { - for _, s := range f.Sections { - if s.Name == name { - return s - } - } - return nil -} - -func (f *File) DWARF() (*dwarf.Data, error) { - // There are many other DWARF sections, but these - // are the required ones, and the debug/dwarf package - // does not use the others, so don't bother loading them. - var names = [...]string{"abbrev", "info", "str"} - var dat [len(names)][]byte - for i, name := range names { - name = ".debug_" + name - s := f.Section(name) - if s == nil { - continue - } - b, err := s.Data() - if err != nil && uint32(len(b)) < s.Size { - return nil, err - } - dat[i] = b - } - - abbrev, info, str := dat[0], dat[1], dat[2] - return dwarf.New(abbrev, nil, nil, info, nil, nil, nil, str) -} - -// ImportedSymbols returns the names of all symbols -// referred to by the binary f that are expected to be -// satisfied by other libraries at dynamic load time. -// It does not return weak symbols. -func (f *File) ImportedSymbols() ([]string, error) { - pe64 := f.Machine == IMAGE_FILE_MACHINE_AMD64 - ds := f.Section(".idata") - if ds == nil { - // not dynamic, so no libraries - return nil, nil - } - d, err := ds.Data() - if err != nil { - return nil, err - } - var ida []ImportDirectory - for len(d) > 0 { - var dt ImportDirectory - dt.OriginalFirstThunk = binary.LittleEndian.Uint32(d[0:4]) - dt.Name = binary.LittleEndian.Uint32(d[12:16]) - dt.FirstThunk = binary.LittleEndian.Uint32(d[16:20]) - d = d[20:] - if dt.OriginalFirstThunk == 0 { - break - } - ida = append(ida, dt) - } - names, _ := ds.Data() - var all []string - for _, dt := range ida { - dt.dll, _ = getString(names, int(dt.Name-ds.VirtualAddress)) - d, _ = ds.Data() - // seek to OriginalFirstThunk - d = d[dt.OriginalFirstThunk-ds.VirtualAddress:] - for len(d) > 0 { - if pe64 { // 64bit - va := binary.LittleEndian.Uint64(d[0:8]) - d = d[8:] - if va == 0 { - break - } - if va&0x8000000000000000 > 0 { // is Ordinal - // TODO add dynimport ordinal support. - } else { - fn, _ := getString(names, int(uint32(va)-ds.VirtualAddress+2)) - all = append(all, fn+":"+dt.dll) - } - } else { // 32bit - va := binary.LittleEndian.Uint32(d[0:4]) - d = d[4:] - if va == 0 { - break - } - if va&0x80000000 > 0 { // is Ordinal - // TODO add dynimport ordinal support. - //ord := va&0x0000FFFF - } else { - fn, _ := getString(names, int(va-ds.VirtualAddress+2)) - all = append(all, fn+":"+dt.dll) - } - } - } - } - - return all, nil -} - -// ImportedLibraries returns the names of all libraries -// referred to by the binary f that are expected to be -// linked with the binary at dynamic link time. -func (f *File) ImportedLibraries() ([]string, error) { - // TODO - // cgo -dynimport don't use this for windows PE, so just return. - return nil, nil -} diff --git a/src/pkg/debug/pe/file_test.go b/src/pkg/debug/pe/file_test.go deleted file mode 100644 index ddbb27174..000000000 --- a/src/pkg/debug/pe/file_test.go +++ /dev/null @@ -1,236 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package pe - -import ( - "reflect" - "testing" -) - -type fileTest struct { - file string - hdr FileHeader - opthdr interface{} - sections []*SectionHeader - symbols []*Symbol -} - -var fileTests = []fileTest{ - { - "testdata/gcc-386-mingw-obj", - FileHeader{0x014c, 0x000c, 0x0, 0x64a, 0x1e, 0x0, 0x104}, - nil, - []*SectionHeader{ - {".text", 0, 0, 36, 500, 1440, 0, 3, 0, 0x60300020}, - {".data", 0, 0, 0, 0, 0, 0, 0, 0, 3224371264}, - {".bss", 0, 0, 0, 0, 0, 0, 0, 0, 3224371328}, - {".debug_abbrev", 0, 0, 137, 536, 0, 0, 0, 0, 0x42100000}, - {".debug_info", 0, 0, 418, 673, 1470, 0, 7, 0, 1108344832}, - {".debug_line", 0, 0, 128, 1091, 1540, 0, 1, 0, 1108344832}, - {".rdata", 0, 0, 16, 1219, 0, 0, 0, 0, 1076887616}, - {".debug_frame", 0, 0, 52, 1235, 1550, 0, 2, 0, 1110441984}, - {".debug_loc", 0, 0, 56, 1287, 0, 0, 0, 0, 1108344832}, - {".debug_pubnames", 0, 0, 27, 1343, 1570, 0, 1, 0, 1108344832}, - {".debug_pubtypes", 0, 0, 38, 1370, 1580, 0, 1, 0, 1108344832}, - {".debug_aranges", 0, 0, 32, 1408, 1590, 0, 2, 0, 1108344832}, - }, - []*Symbol{ - {".file", 0x0, -2, 0x0, 0x67}, - {"_main", 0x0, 1, 0x20, 0x2}, - {".text", 0x0, 1, 0x0, 0x3}, - {".data", 0x0, 2, 0x0, 0x3}, - {".bss", 0x0, 3, 0x0, 0x3}, - {".debug_abbrev", 0x0, 4, 0x0, 0x3}, - {".debug_info", 0x0, 5, 0x0, 0x3}, - {".debug_line", 0x0, 6, 0x0, 0x3}, - {".rdata", 0x0, 7, 0x0, 0x3}, - {".debug_frame", 0x0, 8, 0x0, 0x3}, - {".debug_loc", 0x0, 9, 0x0, 0x3}, - {".debug_pubnames", 0x0, 10, 0x0, 0x3}, - {".debug_pubtypes", 0x0, 11, 0x0, 0x3}, - {".debug_aranges", 0x0, 12, 0x0, 0x3}, - {"___main", 0x0, 0, 0x20, 0x2}, - {"_puts", 0x0, 0, 0x20, 0x2}, - }, - }, - { - "testdata/gcc-386-mingw-exec", - FileHeader{0x014c, 0x000f, 0x4c6a1b60, 0x3c00, 0x282, 0xe0, 0x107}, - &OptionalHeader32{ - 0x10b, 0x2, 0x38, 0xe00, 0x1a00, 0x200, 0x1160, 0x1000, 0x2000, 0x400000, 0x1000, 0x200, 0x4, 0x0, 0x1, 0x0, 0x4, 0x0, 0x0, 0x10000, 0x400, 0x14abb, 0x3, 0x0, 0x200000, 0x1000, 0x100000, 0x1000, 0x0, 0x10, - [16]DataDirectory{ - {0x0, 0x0}, - {0x5000, 0x3c8}, - {0x0, 0x0}, - {0x0, 0x0}, - {0x0, 0x0}, - {0x0, 0x0}, - {0x0, 0x0}, - {0x0, 0x0}, - {0x0, 0x0}, - {0x7000, 0x18}, - {0x0, 0x0}, - {0x0, 0x0}, - {0x0, 0x0}, - {0x0, 0x0}, - {0x0, 0x0}, - {0x0, 0x0}, - }, - }, - []*SectionHeader{ - {".text", 0xcd8, 0x1000, 0xe00, 0x400, 0x0, 0x0, 0x0, 0x0, 0x60500060}, - {".data", 0x10, 0x2000, 0x200, 0x1200, 0x0, 0x0, 0x0, 0x0, 0xc0300040}, - {".rdata", 0x120, 0x3000, 0x200, 0x1400, 0x0, 0x0, 0x0, 0x0, 0x40300040}, - {".bss", 0xdc, 0x4000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc0400080}, - {".idata", 0x3c8, 0x5000, 0x400, 0x1600, 0x0, 0x0, 0x0, 0x0, 0xc0300040}, - {".CRT", 0x18, 0x6000, 0x200, 0x1a00, 0x0, 0x0, 0x0, 0x0, 0xc0300040}, - {".tls", 0x20, 0x7000, 0x200, 0x1c00, 0x0, 0x0, 0x0, 0x0, 0xc0300040}, - {".debug_aranges", 0x20, 0x8000, 0x200, 0x1e00, 0x0, 0x0, 0x0, 0x0, 0x42100000}, - {".debug_pubnames", 0x51, 0x9000, 0x200, 0x2000, 0x0, 0x0, 0x0, 0x0, 0x42100000}, - {".debug_pubtypes", 0x91, 0xa000, 0x200, 0x2200, 0x0, 0x0, 0x0, 0x0, 0x42100000}, - {".debug_info", 0xe22, 0xb000, 0x1000, 0x2400, 0x0, 0x0, 0x0, 0x0, 0x42100000}, - {".debug_abbrev", 0x157, 0xc000, 0x200, 0x3400, 0x0, 0x0, 0x0, 0x0, 0x42100000}, - {".debug_line", 0x144, 0xd000, 0x200, 0x3600, 0x0, 0x0, 0x0, 0x0, 0x42100000}, - {".debug_frame", 0x34, 0xe000, 0x200, 0x3800, 0x0, 0x0, 0x0, 0x0, 0x42300000}, - {".debug_loc", 0x38, 0xf000, 0x200, 0x3a00, 0x0, 0x0, 0x0, 0x0, 0x42100000}, - }, - []*Symbol{}, - }, - { - "testdata/gcc-amd64-mingw-obj", - FileHeader{0x8664, 0x6, 0x0, 0x198, 0x12, 0x0, 0x4}, - nil, - []*SectionHeader{ - {".text", 0x0, 0x0, 0x30, 0x104, 0x15c, 0x0, 0x3, 0x0, 0x60500020}, - {".data", 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc0500040}, - {".bss", 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc0500080}, - {".rdata", 0x0, 0x0, 0x10, 0x134, 0x0, 0x0, 0x0, 0x0, 0x40500040}, - {".xdata", 0x0, 0x0, 0xc, 0x144, 0x0, 0x0, 0x0, 0x0, 0x40300040}, - {".pdata", 0x0, 0x0, 0xc, 0x150, 0x17a, 0x0, 0x3, 0x0, 0x40300040}, - }, - []*Symbol{ - {".file", 0x0, -2, 0x0, 0x67}, - {"main", 0x0, 1, 0x20, 0x2}, - {".text", 0x0, 1, 0x0, 0x3}, - {".data", 0x0, 2, 0x0, 0x3}, - {".bss", 0x0, 3, 0x0, 0x3}, - {".rdata", 0x0, 4, 0x0, 0x3}, - {".xdata", 0x0, 5, 0x0, 0x3}, - {".pdata", 0x0, 6, 0x0, 0x3}, - {"__main", 0x0, 0, 0x20, 0x2}, - {"puts", 0x0, 0, 0x20, 0x2}, - }, - }, - { - "testdata/gcc-amd64-mingw-exec", - FileHeader{0x8664, 0x9, 0x53472993, 0x0, 0x0, 0xf0, 0x22f}, - &OptionalHeader64{ - 0x20b, 0x2, 0x16, 0x6a00, 0x2400, 0x1600, 0x14e0, 0x1000, 0x400000, 0x1000, 0x200, 0x4, 0x0, 0x0, 0x0, 0x5, 0x2, 0x0, 0x11000, 0x400, 0x1841e, 0x3, 0x0, 0x200000, 0x1000, 0x100000, 0x1000, 0x0, 0x10, - [16]DataDirectory{ - {0x0, 0x0}, - {0xe000, 0x990}, - {0x0, 0x0}, - {0xa000, 0x498}, - {0x0, 0x0}, - {0x0, 0x0}, - {0x0, 0x0}, - {0x0, 0x0}, - {0x0, 0x0}, - {0x10000, 0x28}, - {0x0, 0x0}, - {0x0, 0x0}, - {0xe254, 0x218}, - {0x0, 0x0}, - {0x0, 0x0}, - {0x0, 0x0}, - }, - }, - []*SectionHeader{ - {".text", 0x6860, 0x1000, 0x6a00, 0x400, 0x0, 0x0, 0x0, 0x0, 0x60500020}, - {".data", 0xe0, 0x8000, 0x200, 0x6e00, 0x0, 0x0, 0x0, 0x0, 0xc0500040}, - {".rdata", 0x6b0, 0x9000, 0x800, 0x7000, 0x0, 0x0, 0x0, 0x0, 0x40600040}, - {".pdata", 0x498, 0xa000, 0x600, 0x7800, 0x0, 0x0, 0x0, 0x0, 0x40300040}, - {".xdata", 0x488, 0xb000, 0x600, 0x7e00, 0x0, 0x0, 0x0, 0x0, 0x40300040}, - {".bss", 0x1410, 0xc000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc0600080}, - {".idata", 0x990, 0xe000, 0xa00, 0x8400, 0x0, 0x0, 0x0, 0x0, 0xc0300040}, - {".CRT", 0x68, 0xf000, 0x200, 0x8e00, 0x0, 0x0, 0x0, 0x0, 0xc0400040}, - {".tls", 0x48, 0x10000, 0x200, 0x9000, 0x0, 0x0, 0x0, 0x0, 0xc0600040}, - }, - []*Symbol{}, - }, -} - -func isOptHdrEq(a, b interface{}) bool { - switch va := a.(type) { - case *OptionalHeader32: - vb, ok := b.(*OptionalHeader32) - if !ok { - return false - } - return *vb == *va - case *OptionalHeader64: - vb, ok := b.(*OptionalHeader64) - if !ok { - return false - } - return *vb == *va - case nil: - return b == nil - } - return false -} - -func TestOpen(t *testing.T) { - for i := range fileTests { - tt := &fileTests[i] - - f, err := Open(tt.file) - if err != nil { - t.Error(err) - continue - } - if !reflect.DeepEqual(f.FileHeader, tt.hdr) { - t.Errorf("open %s:\n\thave %#v\n\twant %#v\n", tt.file, f.FileHeader, tt.hdr) - continue - } - if !isOptHdrEq(tt.opthdr, f.OptionalHeader) { - t.Errorf("open %s:\n\thave %#v\n\twant %#v\n", tt.file, f.OptionalHeader, tt.opthdr) - continue - } - - for i, sh := range f.Sections { - if i >= len(tt.sections) { - break - } - have := &sh.SectionHeader - want := tt.sections[i] - if !reflect.DeepEqual(have, want) { - t.Errorf("open %s, section %d:\n\thave %#v\n\twant %#v\n", tt.file, i, have, want) - } - } - tn := len(tt.sections) - fn := len(f.Sections) - if tn != fn { - t.Errorf("open %s: len(Sections) = %d, want %d", tt.file, fn, tn) - } - for i, have := range f.Symbols { - if i >= len(tt.symbols) { - break - } - want := tt.symbols[i] - if !reflect.DeepEqual(have, want) { - t.Errorf("open %s, symbol %d:\n\thave %#v\n\twant %#v\n", tt.file, i, have, want) - } - } - } -} - -func TestOpenFailure(t *testing.T) { - filename := "file.go" // not a PE file - _, err := Open(filename) // don't crash - if err == nil { - t.Errorf("open %s: succeeded unexpectedly", filename) - } -} diff --git a/src/pkg/debug/pe/pe.go b/src/pkg/debug/pe/pe.go deleted file mode 100644 index 8e90b1b51..000000000 --- a/src/pkg/debug/pe/pe.go +++ /dev/null @@ -1,134 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package pe - -type FileHeader struct { - Machine uint16 - NumberOfSections uint16 - TimeDateStamp uint32 - PointerToSymbolTable uint32 - NumberOfSymbols uint32 - SizeOfOptionalHeader uint16 - Characteristics uint16 -} - -type DataDirectory struct { - VirtualAddress uint32 - Size uint32 -} - -type OptionalHeader32 struct { - Magic uint16 - MajorLinkerVersion uint8 - MinorLinkerVersion uint8 - SizeOfCode uint32 - SizeOfInitializedData uint32 - SizeOfUninitializedData uint32 - AddressOfEntryPoint uint32 - BaseOfCode uint32 - BaseOfData uint32 - ImageBase uint32 - SectionAlignment uint32 - FileAlignment uint32 - MajorOperatingSystemVersion uint16 - MinorOperatingSystemVersion uint16 - MajorImageVersion uint16 - MinorImageVersion uint16 - MajorSubsystemVersion uint16 - MinorSubsystemVersion uint16 - Win32VersionValue uint32 - SizeOfImage uint32 - SizeOfHeaders uint32 - CheckSum uint32 - Subsystem uint16 - DllCharacteristics uint16 - SizeOfStackReserve uint32 - SizeOfStackCommit uint32 - SizeOfHeapReserve uint32 - SizeOfHeapCommit uint32 - LoaderFlags uint32 - NumberOfRvaAndSizes uint32 - DataDirectory [16]DataDirectory -} - -type OptionalHeader64 struct { - Magic uint16 - MajorLinkerVersion uint8 - MinorLinkerVersion uint8 - SizeOfCode uint32 - SizeOfInitializedData uint32 - SizeOfUninitializedData uint32 - AddressOfEntryPoint uint32 - BaseOfCode uint32 - ImageBase uint64 - SectionAlignment uint32 - FileAlignment uint32 - MajorOperatingSystemVersion uint16 - MinorOperatingSystemVersion uint16 - MajorImageVersion uint16 - MinorImageVersion uint16 - MajorSubsystemVersion uint16 - MinorSubsystemVersion uint16 - Win32VersionValue uint32 - SizeOfImage uint32 - SizeOfHeaders uint32 - CheckSum uint32 - Subsystem uint16 - DllCharacteristics uint16 - SizeOfStackReserve uint64 - SizeOfStackCommit uint64 - SizeOfHeapReserve uint64 - SizeOfHeapCommit uint64 - LoaderFlags uint32 - NumberOfRvaAndSizes uint32 - DataDirectory [16]DataDirectory -} - -type SectionHeader32 struct { - Name [8]uint8 - VirtualSize uint32 - VirtualAddress uint32 - SizeOfRawData uint32 - PointerToRawData uint32 - PointerToRelocations uint32 - PointerToLineNumbers uint32 - NumberOfRelocations uint16 - NumberOfLineNumbers uint16 - Characteristics uint32 -} - -const COFFSymbolSize = 18 - -type COFFSymbol struct { - Name [8]uint8 - Value uint32 - SectionNumber int16 - Type uint16 - StorageClass uint8 - NumberOfAuxSymbols uint8 -} - -const ( - IMAGE_FILE_MACHINE_UNKNOWN = 0x0 - IMAGE_FILE_MACHINE_AM33 = 0x1d3 - IMAGE_FILE_MACHINE_AMD64 = 0x8664 - IMAGE_FILE_MACHINE_ARM = 0x1c0 - IMAGE_FILE_MACHINE_EBC = 0xebc - IMAGE_FILE_MACHINE_I386 = 0x14c - IMAGE_FILE_MACHINE_IA64 = 0x200 - IMAGE_FILE_MACHINE_M32R = 0x9041 - IMAGE_FILE_MACHINE_MIPS16 = 0x266 - IMAGE_FILE_MACHINE_MIPSFPU = 0x366 - IMAGE_FILE_MACHINE_MIPSFPU16 = 0x466 - IMAGE_FILE_MACHINE_POWERPC = 0x1f0 - IMAGE_FILE_MACHINE_POWERPCFP = 0x1f1 - IMAGE_FILE_MACHINE_R4000 = 0x166 - IMAGE_FILE_MACHINE_SH3 = 0x1a2 - IMAGE_FILE_MACHINE_SH3DSP = 0x1a3 - IMAGE_FILE_MACHINE_SH4 = 0x1a6 - IMAGE_FILE_MACHINE_SH5 = 0x1a8 - IMAGE_FILE_MACHINE_THUMB = 0x1c2 - IMAGE_FILE_MACHINE_WCEMIPSV2 = 0x169 -) diff --git a/src/pkg/debug/pe/testdata/gcc-386-mingw-exec b/src/pkg/debug/pe/testdata/gcc-386-mingw-exec Binary files differdeleted file mode 100644 index 4b808d043..000000000 --- a/src/pkg/debug/pe/testdata/gcc-386-mingw-exec +++ /dev/null diff --git a/src/pkg/debug/pe/testdata/gcc-386-mingw-obj b/src/pkg/debug/pe/testdata/gcc-386-mingw-obj Binary files differdeleted file mode 100644 index 0c84d898d..000000000 --- a/src/pkg/debug/pe/testdata/gcc-386-mingw-obj +++ /dev/null diff --git a/src/pkg/debug/pe/testdata/gcc-amd64-mingw-exec b/src/pkg/debug/pe/testdata/gcc-amd64-mingw-exec Binary files differdeleted file mode 100644 index 78d4e5fed..000000000 --- a/src/pkg/debug/pe/testdata/gcc-amd64-mingw-exec +++ /dev/null diff --git a/src/pkg/debug/pe/testdata/gcc-amd64-mingw-obj b/src/pkg/debug/pe/testdata/gcc-amd64-mingw-obj Binary files differdeleted file mode 100644 index 48ae7921f..000000000 --- a/src/pkg/debug/pe/testdata/gcc-amd64-mingw-obj +++ /dev/null diff --git a/src/pkg/debug/pe/testdata/hello.c b/src/pkg/debug/pe/testdata/hello.c deleted file mode 100644 index a689d3644..000000000 --- a/src/pkg/debug/pe/testdata/hello.c +++ /dev/null @@ -1,8 +0,0 @@ -#include <stdio.h> - -int -main(void) -{ - printf("hello, world\n"); - return 0; -} diff --git a/src/pkg/debug/plan9obj/file.go b/src/pkg/debug/plan9obj/file.go deleted file mode 100644 index 60a585719..000000000 --- a/src/pkg/debug/plan9obj/file.go +++ /dev/null @@ -1,325 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package plan9obj implements access to Plan 9 a.out object files. -package plan9obj - -import ( - "encoding/binary" - "errors" - "fmt" - "io" - "os" -) - -// A FileHeader represents a Plan 9 a.out file header. -type FileHeader struct { - Magic uint32 - Bss uint32 - Entry uint64 - PtrSize int -} - -// A File represents an open Plan 9 a.out file. -type File struct { - FileHeader - Sections []*Section - closer io.Closer -} - -// A SectionHeader represents a single Plan 9 a.out section header. -// This structure doesn't exist on-disk, but eases navigation -// through the object file. -type SectionHeader struct { - Name string - Size uint32 - Offset uint32 -} - -// A Section represents a single section in a Plan 9 a.out file. -type Section struct { - SectionHeader - - // Embed ReaderAt for ReadAt method. - // Do not embed SectionReader directly - // to avoid having Read and Seek. - // If a client wants Read and Seek it must use - // Open() to avoid fighting over the seek offset - // with other clients. - io.ReaderAt - sr *io.SectionReader -} - -// Data reads and returns the contents of the Plan 9 a.out section. -func (s *Section) Data() ([]byte, error) { - dat := make([]byte, s.sr.Size()) - n, err := s.sr.ReadAt(dat, 0) - if n == len(dat) { - err = nil - } - return dat[0:n], err -} - -// Open returns a new ReadSeeker reading the Plan 9 a.out section. -func (s *Section) Open() io.ReadSeeker { return io.NewSectionReader(s.sr, 0, 1<<63-1) } - -// A Symbol represents an entry in a Plan 9 a.out symbol table section. -type Sym struct { - Value uint64 - Type rune - Name string -} - -/* - * Plan 9 a.out reader - */ - -// formatError is returned by some operations if the data does -// not have the correct format for an object file. -type formatError struct { - off int - msg string - val interface{} -} - -func (e *formatError) Error() string { - msg := e.msg - if e.val != nil { - msg += fmt.Sprintf(" '%v'", e.val) - } - msg += fmt.Sprintf(" in record at byte %#x", e.off) - return msg -} - -// Open opens the named file using os.Open and prepares it for use as a Plan 9 a.out binary. -func Open(name string) (*File, error) { - f, err := os.Open(name) - if err != nil { - return nil, err - } - ff, err := NewFile(f) - if err != nil { - f.Close() - return nil, err - } - ff.closer = f - return ff, nil -} - -// Close closes the File. -// If the File was created using NewFile directly instead of Open, -// Close has no effect. -func (f *File) Close() error { - var err error - if f.closer != nil { - err = f.closer.Close() - f.closer = nil - } - return err -} - -func parseMagic(magic []byte) (uint32, error) { - m := binary.BigEndian.Uint32(magic) - switch m { - case Magic386, MagicAMD64, MagicARM: - return m, nil - } - return 0, &formatError{0, "bad magic number", magic} -} - -// NewFile creates a new File for accessing a Plan 9 binary in an underlying reader. -// The Plan 9 binary is expected to start at position 0 in the ReaderAt. -func NewFile(r io.ReaderAt) (*File, error) { - sr := io.NewSectionReader(r, 0, 1<<63-1) - // Read and decode Plan 9 magic - var magic [4]byte - if _, err := r.ReadAt(magic[:], 0); err != nil { - return nil, err - } - _, err := parseMagic(magic[:]) - if err != nil { - return nil, err - } - - ph := new(prog) - if err := binary.Read(sr, binary.BigEndian, ph); err != nil { - return nil, err - } - - f := &File{FileHeader: FileHeader{ - Magic: ph.Magic, - Bss: ph.Bss, - Entry: uint64(ph.Entry), - PtrSize: 4, - }} - - hdrSize := 4 * 8 - - if ph.Magic&Magic64 != 0 { - if err := binary.Read(sr, binary.BigEndian, &f.Entry); err != nil { - return nil, err - } - f.PtrSize = 8 - hdrSize += 8 - } - - var sects = []struct { - name string - size uint32 - }{ - {"text", ph.Text}, - {"data", ph.Data}, - {"syms", ph.Syms}, - {"spsz", ph.Spsz}, - {"pcsz", ph.Pcsz}, - } - - f.Sections = make([]*Section, 5) - - off := uint32(hdrSize) - - for i, sect := range sects { - s := new(Section) - s.SectionHeader = SectionHeader{ - Name: sect.name, - Size: sect.size, - Offset: off, - } - off += sect.size - s.sr = io.NewSectionReader(r, int64(s.Offset), int64(s.Size)) - s.ReaderAt = s.sr - f.Sections[i] = s - } - - return f, nil -} - -func walksymtab(data []byte, ptrsz int, fn func(sym) error) error { - var order binary.ByteOrder = binary.BigEndian - var s sym - p := data - for len(p) >= 4 { - // Symbol type, value. - if len(p) < ptrsz { - return &formatError{len(data), "unexpected EOF", nil} - } - // fixed-width value - if ptrsz == 8 { - s.value = order.Uint64(p[0:8]) - p = p[8:] - } else { - s.value = uint64(order.Uint32(p[0:4])) - p = p[4:] - } - - var typ byte - typ = p[0] & 0x7F - s.typ = typ - p = p[1:] - - // Name. - var i int - var nnul int - for i = 0; i < len(p); i++ { - if p[i] == 0 { - nnul = 1 - break - } - } - switch typ { - case 'z', 'Z': - p = p[i+nnul:] - for i = 0; i+2 <= len(p); i += 2 { - if p[i] == 0 && p[i+1] == 0 { - nnul = 2 - break - } - } - } - if len(p) < i+nnul { - return &formatError{len(data), "unexpected EOF", nil} - } - s.name = p[0:i] - i += nnul - p = p[i:] - - fn(s) - } - return nil -} - -// NewTable decodes the Go symbol table in data, -// returning an in-memory representation. -func newTable(symtab []byte, ptrsz int) ([]Sym, error) { - var n int - err := walksymtab(symtab, ptrsz, func(s sym) error { - n++ - return nil - }) - if err != nil { - return nil, err - } - - fname := make(map[uint16]string) - syms := make([]Sym, 0, n) - err = walksymtab(symtab, ptrsz, func(s sym) error { - n := len(syms) - syms = syms[0 : n+1] - ts := &syms[n] - ts.Type = rune(s.typ) - ts.Value = s.value - switch s.typ { - default: - ts.Name = string(s.name[:]) - case 'z', 'Z': - for i := 0; i < len(s.name); i += 2 { - eltIdx := binary.BigEndian.Uint16(s.name[i : i+2]) - elt, ok := fname[eltIdx] - if !ok { - return &formatError{-1, "bad filename code", eltIdx} - } - if n := len(ts.Name); n > 0 && ts.Name[n-1] != '/' { - ts.Name += "/" - } - ts.Name += elt - } - } - switch s.typ { - case 'f': - fname[uint16(s.value)] = ts.Name - } - return nil - }) - if err != nil { - return nil, err - } - - return syms, nil -} - -// Symbols returns the symbol table for f. -func (f *File) Symbols() ([]Sym, error) { - symtabSection := f.Section("syms") - if symtabSection == nil { - return nil, errors.New("no symbol section") - } - - symtab, err := symtabSection.Data() - if err != nil { - return nil, errors.New("cannot load symbol section") - } - - return newTable(symtab, f.PtrSize) -} - -// Section returns a section with the given name, or nil if no such -// section exists. -func (f *File) Section(name string) *Section { - for _, s := range f.Sections { - if s.Name == name { - return s - } - } - return nil -} diff --git a/src/pkg/debug/plan9obj/file_test.go b/src/pkg/debug/plan9obj/file_test.go deleted file mode 100644 index 96186d815..000000000 --- a/src/pkg/debug/plan9obj/file_test.go +++ /dev/null @@ -1,81 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package plan9obj - -import ( - "reflect" - "testing" -) - -type fileTest struct { - file string - hdr FileHeader - sections []*SectionHeader -} - -var fileTests = []fileTest{ - { - "testdata/386-plan9-exec", - FileHeader{Magic386, 0x324, 0x14, 4}, - []*SectionHeader{ - {"text", 0x4c5f, 0x20}, - {"data", 0x94c, 0x4c7f}, - {"syms", 0x2c2b, 0x55cb}, - {"spsz", 0x0, 0x81f6}, - {"pcsz", 0xf7a, 0x81f6}, - }, - }, - { - "testdata/amd64-plan9-exec", - FileHeader{MagicAMD64, 0x618, 0x13, 8}, - []*SectionHeader{ - {"text", 0x4213, 0x28}, - {"data", 0xa80, 0x423b}, - {"syms", 0x2c8c, 0x4cbb}, - {"spsz", 0x0, 0x7947}, - {"pcsz", 0xca0, 0x7947}, - }, - }, -} - -func TestOpen(t *testing.T) { - for i := range fileTests { - tt := &fileTests[i] - - f, err := Open(tt.file) - if err != nil { - t.Error(err) - continue - } - if !reflect.DeepEqual(f.FileHeader, tt.hdr) { - t.Errorf("open %s:\n\thave %#v\n\twant %#v\n", tt.file, f.FileHeader, tt.hdr) - continue - } - - for i, sh := range f.Sections { - if i >= len(tt.sections) { - break - } - have := &sh.SectionHeader - want := tt.sections[i] - if !reflect.DeepEqual(have, want) { - t.Errorf("open %s, section %d:\n\thave %#v\n\twant %#v\n", tt.file, i, have, want) - } - } - tn := len(tt.sections) - fn := len(f.Sections) - if tn != fn { - t.Errorf("open %s: len(Sections) = %d, want %d", tt.file, fn, tn) - } - } -} - -func TestOpenFailure(t *testing.T) { - filename := "file.go" // not a Plan 9 a.out file - _, err := Open(filename) // don't crash - if err == nil { - t.Errorf("open %s: succeeded unexpectedly", filename) - } -} diff --git a/src/pkg/debug/plan9obj/plan9obj.go b/src/pkg/debug/plan9obj/plan9obj.go deleted file mode 100644 index af9858562..000000000 --- a/src/pkg/debug/plan9obj/plan9obj.go +++ /dev/null @@ -1,36 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -/* - * Plan 9 a.out constants and data structures - */ - -package plan9obj - -// Plan 9 Program header. -type prog struct { - Magic uint32 /* magic number */ - Text uint32 /* size of text segment */ - Data uint32 /* size of initialized data */ - Bss uint32 /* size of uninitialized data */ - Syms uint32 /* size of symbol table */ - Entry uint32 /* entry point */ - Spsz uint32 /* size of pc/sp offset table */ - Pcsz uint32 /* size of pc/line number table */ -} - -// Plan 9 symbol table entries. -type sym struct { - value uint64 - typ byte - name []byte -} - -const ( - Magic64 = 0x8000 // 64-bit expanded header - - Magic386 = (4*11+0)*11 + 7 - MagicAMD64 = (4*26+0)*26 + 7 + Magic64 - MagicARM = (4*20+0)*20 + 7 -) diff --git a/src/pkg/debug/plan9obj/testdata/386-plan9-exec b/src/pkg/debug/plan9obj/testdata/386-plan9-exec Binary files differdeleted file mode 100755 index 748e83f8e..000000000 --- a/src/pkg/debug/plan9obj/testdata/386-plan9-exec +++ /dev/null diff --git a/src/pkg/debug/plan9obj/testdata/amd64-plan9-exec b/src/pkg/debug/plan9obj/testdata/amd64-plan9-exec Binary files differdeleted file mode 100755 index 3e257dd8f..000000000 --- a/src/pkg/debug/plan9obj/testdata/amd64-plan9-exec +++ /dev/null diff --git a/src/pkg/debug/plan9obj/testdata/hello.c b/src/pkg/debug/plan9obj/testdata/hello.c deleted file mode 100644 index c0d633e29..000000000 --- a/src/pkg/debug/plan9obj/testdata/hello.c +++ /dev/null @@ -1,8 +0,0 @@ -#include <u.h> -#include <libc.h> - -void -main(void) -{ - print("hello, world\n"); -} |