diff options
Diffstat (limited to 'src/pkg/debug/dwarf/entry.go')
| -rw-r--r-- | src/pkg/debug/dwarf/entry.go | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/src/pkg/debug/dwarf/entry.go b/src/pkg/debug/dwarf/entry.go index 13d8d5ecf..c0c288992 100644 --- a/src/pkg/debug/dwarf/entry.go +++ b/src/pkg/debug/dwarf/entry.go @@ -10,7 +10,10 @@ package dwarf -import "errors" +import ( + "errors" + "strconv" +) // a single entry's description: a sequence of attributes type abbrev struct { @@ -152,7 +155,7 @@ func (b *buf) entry(atab abbrevTable, ubase Offset) *Entry { var val interface{} switch fmt { default: - b.error("unknown entry attr format") + b.error("unknown entry attr format 0x" + strconv.FormatInt(int64(fmt), 16)) // address case formAddr: @@ -185,6 +188,7 @@ func (b *buf) entry(atab abbrevTable, ubase Offset) *Entry { // 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. @@ -233,6 +237,30 @@ func (b *buf) entry(atab abbrevTable, ubase Offset) *Entry { 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: + is64, known := b.format.dwarf64() + if !known { + b.error("unknown size for DW_FORM_sec_offset") + } 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 } |