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Diffstat (limited to 'src/cmd/ld/elf.h')
| -rw-r--r-- | src/cmd/ld/elf.h | 989 |
1 files changed, 0 insertions, 989 deletions
diff --git a/src/cmd/ld/elf.h b/src/cmd/ld/elf.h deleted file mode 100644 index c63df2241..000000000 --- a/src/cmd/ld/elf.h +++ /dev/null @@ -1,989 +0,0 @@ -/* - * 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. - * - */ - -/* - * ELF definitions that are independent of architecture or word size. - */ - -/* - * Note header. The ".note" section contains an array of notes. Each - * begins with this header, aligned to a word boundary. Immediately - * following the note header is n_namesz bytes of name, padded to the - * next word boundary. Then comes n_descsz bytes of descriptor, again - * padded to a word boundary. The values of n_namesz and n_descsz do - * not include the padding. - */ - -typedef struct { - uint32 n_namesz; /* Length of name. */ - uint32 n_descsz; /* Length of descriptor. */ - uint32 n_type; /* Type of this note. */ -} Elf_Note; - -/* Indexes into the e_ident array. Keep synced with - http://www.sco.com/developer/gabi/ch4.eheader.html */ -#define EI_MAG0 0 /* Magic number, byte 0. */ -#define EI_MAG1 1 /* Magic number, byte 1. */ -#define EI_MAG2 2 /* Magic number, byte 2. */ -#define EI_MAG3 3 /* Magic number, byte 3. */ -#define EI_CLASS 4 /* Class of machine. */ -#define EI_DATA 5 /* Data format. */ -#define EI_VERSION 6 /* ELF format version. */ -#define EI_OSABI 7 /* Operating system / ABI identification */ -#define EI_ABIVERSION 8 /* ABI version */ -#define OLD_EI_BRAND 8 /* Start of architecture identification. */ -#define EI_PAD 9 /* Start of padding (per SVR4 ABI). */ -#define EI_NIDENT 16 /* Size of e_ident array. */ - -/* Values for the magic number bytes. */ -#define ELFMAG0 0x7f -#define ELFMAG1 'E' -#define ELFMAG2 'L' -#define ELFMAG3 'F' -#define ELFMAG "\177ELF" /* magic string */ -#define SELFMAG 4 /* magic string size */ - -/* Values for e_ident[EI_VERSION] and e_version. */ -#define EV_NONE 0 -#define EV_CURRENT 1 - -/* Values for e_ident[EI_CLASS]. */ -#define ELFCLASSNONE 0 /* Unknown class. */ -#define ELFCLASS32 1 /* 32-bit architecture. */ -#define ELFCLASS64 2 /* 64-bit architecture. */ - -/* Values for e_ident[EI_DATA]. */ -#define ELFDATANONE 0 /* Unknown data format. */ -#define ELFDATA2LSB 1 /* 2's complement little-endian. */ -#define ELFDATA2MSB 2 /* 2's complement big-endian. */ - -/* Values for e_ident[EI_OSABI]. */ -#define ELFOSABI_NONE 0 /* UNIX System V ABI */ -#define ELFOSABI_HPUX 1 /* HP-UX operating system */ -#define ELFOSABI_NETBSD 2 /* NetBSD */ -#define ELFOSABI_LINUX 3 /* GNU/Linux */ -#define ELFOSABI_HURD 4 /* GNU/Hurd */ -#define ELFOSABI_86OPEN 5 /* 86Open common IA32 ABI */ -#define ELFOSABI_SOLARIS 6 /* Solaris */ -#define ELFOSABI_AIX 7 /* AIX */ -#define ELFOSABI_IRIX 8 /* IRIX */ -#define ELFOSABI_FREEBSD 9 /* FreeBSD */ -#define ELFOSABI_TRU64 10 /* TRU64 UNIX */ -#define ELFOSABI_MODESTO 11 /* Novell Modesto */ -#define ELFOSABI_OPENBSD 12 /* OpenBSD */ -#define ELFOSABI_OPENVMS 13 /* Open VMS */ -#define ELFOSABI_NSK 14 /* HP Non-Stop Kernel */ -#define ELFOSABI_ARM 97 /* ARM */ -#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ - -#define ELFOSABI_SYSV ELFOSABI_NONE /* symbol used in old spec */ -#define ELFOSABI_MONTEREY ELFOSABI_AIX /* Monterey */ - -/* e_ident */ -#define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \ - (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \ - (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \ - (ehdr).e_ident[EI_MAG3] == ELFMAG3) - -/* Values for e_type. */ -#define ET_NONE 0 /* Unknown type. */ -#define ET_REL 1 /* Relocatable. */ -#define ET_EXEC 2 /* Executable. */ -#define ET_DYN 3 /* Shared object. */ -#define ET_CORE 4 /* Core file. */ -#define ET_LOOS 0xfe00 /* First operating system specific. */ -#define ET_HIOS 0xfeff /* Last operating system-specific. */ -#define ET_LOPROC 0xff00 /* First processor-specific. */ -#define ET_HIPROC 0xffff /* Last processor-specific. */ - -/* Values for e_machine. */ -#define EM_NONE 0 /* Unknown machine. */ -#define EM_M32 1 /* AT&T WE32100. */ -#define EM_SPARC 2 /* Sun SPARC. */ -#define EM_386 3 /* Intel i386. */ -#define EM_68K 4 /* Motorola 68000. */ -#define EM_88K 5 /* Motorola 88000. */ -#define EM_860 7 /* Intel i860. */ -#define EM_MIPS 8 /* MIPS R3000 Big-Endian only. */ -#define EM_S370 9 /* IBM System/370. */ -#define EM_MIPS_RS3_LE 10 /* MIPS R3000 Little-Endian. */ -#define EM_PARISC 15 /* HP PA-RISC. */ -#define EM_VPP500 17 /* Fujitsu VPP500. */ -#define EM_SPARC32PLUS 18 /* SPARC v8plus. */ -#define EM_960 19 /* Intel 80960. */ -#define EM_PPC 20 /* PowerPC 32-bit. */ -#define EM_PPC64 21 /* PowerPC 64-bit. */ -#define EM_S390 22 /* IBM System/390. */ -#define EM_V800 36 /* NEC V800. */ -#define EM_FR20 37 /* Fujitsu FR20. */ -#define EM_RH32 38 /* TRW RH-32. */ -#define EM_RCE 39 /* Motorola RCE. */ -#define EM_ARM 40 /* ARM. */ -#define EM_SH 42 /* Hitachi SH. */ -#define EM_SPARCV9 43 /* SPARC v9 64-bit. */ -#define EM_TRICORE 44 /* Siemens TriCore embedded processor. */ -#define EM_ARC 45 /* Argonaut RISC Core. */ -#define EM_H8_300 46 /* Hitachi H8/300. */ -#define EM_H8_300H 47 /* Hitachi H8/300H. */ -#define EM_H8S 48 /* Hitachi H8S. */ -#define EM_H8_500 49 /* Hitachi H8/500. */ -#define EM_IA_64 50 /* Intel IA-64 Processor. */ -#define EM_MIPS_X 51 /* Stanford MIPS-X. */ -#define EM_COLDFIRE 52 /* Motorola ColdFire. */ -#define EM_68HC12 53 /* Motorola M68HC12. */ -#define EM_MMA 54 /* Fujitsu MMA. */ -#define EM_PCP 55 /* Siemens PCP. */ -#define EM_NCPU 56 /* Sony nCPU. */ -#define EM_NDR1 57 /* Denso NDR1 microprocessor. */ -#define EM_STARCORE 58 /* Motorola Star*Core processor. */ -#define EM_ME16 59 /* Toyota ME16 processor. */ -#define EM_ST100 60 /* STMicroelectronics ST100 processor. */ -#define EM_TINYJ 61 /* Advanced Logic Corp. TinyJ processor. */ -#define EM_X86_64 62 /* Advanced Micro Devices x86-64 */ - -/* Non-standard or deprecated. */ -#define EM_486 6 /* Intel i486. */ -#define EM_MIPS_RS4_BE 10 /* MIPS R4000 Big-Endian */ -#define EM_ALPHA_STD 41 /* Digital Alpha (standard value). */ -#define EM_ALPHA 0x9026 /* Alpha (written in the absence of an ABI) */ - -/* Special section indexes. */ -#define SHN_UNDEF 0 /* Undefined, missing, irrelevant. */ -#define SHN_LORESERVE 0xff00 /* First of reserved range. */ -#define SHN_LOPROC 0xff00 /* First processor-specific. */ -#define SHN_HIPROC 0xff1f /* Last processor-specific. */ -#define SHN_LOOS 0xff20 /* First operating system-specific. */ -#define SHN_HIOS 0xff3f /* Last operating system-specific. */ -#define SHN_ABS 0xfff1 /* Absolute values. */ -#define SHN_COMMON 0xfff2 /* Common data. */ -#define SHN_XINDEX 0xffff /* Escape -- index stored elsewhere. */ -#define SHN_HIRESERVE 0xffff /* Last of reserved range. */ - -/* sh_type */ -#define SHT_NULL 0 /* inactive */ -#define SHT_PROGBITS 1 /* program defined information */ -#define SHT_SYMTAB 2 /* symbol table section */ -#define SHT_STRTAB 3 /* string table section */ -#define SHT_RELA 4 /* relocation section with addends */ -#define SHT_HASH 5 /* symbol hash table section */ -#define SHT_DYNAMIC 6 /* dynamic section */ -#define SHT_NOTE 7 /* note section */ -#define SHT_NOBITS 8 /* no space section */ -#define SHT_REL 9 /* relocation section - no addends */ -#define SHT_SHLIB 10 /* reserved - purpose unknown */ -#define SHT_DYNSYM 11 /* dynamic symbol table section */ -#define SHT_INIT_ARRAY 14 /* Initialization function pointers. */ -#define SHT_FINI_ARRAY 15 /* Termination function pointers. */ -#define SHT_PREINIT_ARRAY 16 /* Pre-initialization function ptrs. */ -#define SHT_GROUP 17 /* Section group. */ -#define SHT_SYMTAB_SHNDX 18 /* Section indexes (see SHN_XINDEX). */ -#define SHT_LOOS 0x60000000 /* First of OS specific semantics */ -#define SHT_HIOS 0x6fffffff /* Last of OS specific semantics */ -#define SHT_GNU_VERDEF 0x6ffffffd -#define SHT_GNU_VERNEED 0x6ffffffe -#define SHT_GNU_VERSYM 0x6fffffff -#define SHT_LOPROC 0x70000000 /* reserved range for processor */ -#define SHT_HIPROC 0x7fffffff /* specific section header types */ -#define SHT_LOUSER 0x80000000 /* reserved range for application */ -#define SHT_HIUSER 0xffffffff /* specific indexes */ - -/* Flags for sh_flags. */ -#define SHF_WRITE 0x1 /* Section contains writable data. */ -#define SHF_ALLOC 0x2 /* Section occupies memory. */ -#define SHF_EXECINSTR 0x4 /* Section contains instructions. */ -#define SHF_MERGE 0x10 /* Section may be merged. */ -#define SHF_STRINGS 0x20 /* Section contains strings. */ -#define SHF_INFO_LINK 0x40 /* sh_info holds section index. */ -#define SHF_LINK_ORDER 0x80 /* Special ordering requirements. */ -#define SHF_OS_NONCONFORMING 0x100 /* OS-specific processing required. */ -#define SHF_GROUP 0x200 /* Member of section group. */ -#define SHF_TLS 0x400 /* Section contains TLS data. */ -#define SHF_MASKOS 0x0ff00000 /* OS-specific semantics. */ -#define SHF_MASKPROC 0xf0000000 /* Processor-specific semantics. */ - -/* Values for p_type. */ -#define PT_NULL 0 /* Unused entry. */ -#define PT_LOAD 1 /* Loadable segment. */ -#define PT_DYNAMIC 2 /* Dynamic linking information segment. */ -#define PT_INTERP 3 /* Pathname of interpreter. */ -#define PT_NOTE 4 /* Auxiliary information. */ -#define PT_SHLIB 5 /* Reserved (not used). */ -#define PT_PHDR 6 /* Location of program header itself. */ -#define PT_TLS 7 /* Thread local storage segment */ -#define PT_LOOS 0x60000000 /* First OS-specific. */ -#define PT_HIOS 0x6fffffff /* Last OS-specific. */ -#define PT_LOPROC 0x70000000 /* First processor-specific type. */ -#define PT_HIPROC 0x7fffffff /* Last processor-specific type. */ -#define PT_GNU_STACK 0x6474e551 - -/* Values for p_flags. */ -#define PF_X 0x1 /* Executable. */ -#define PF_W 0x2 /* Writable. */ -#define PF_R 0x4 /* Readable. */ -#define PF_MASKOS 0x0ff00000 /* Operating system-specific. */ -#define PF_MASKPROC 0xf0000000 /* Processor-specific. */ - -/* Values for d_tag. */ -#define DT_NULL 0 /* Terminating entry. */ -/* String table offset of a needed shared library. */ -#define DT_NEEDED 1 -#define DT_PLTRELSZ 2 /* Total size in bytes of PLT relocations. */ -#define DT_PLTGOT 3 /* Processor-dependent address. */ -#define DT_HASH 4 /* Address of symbol hash table. */ -#define DT_STRTAB 5 /* Address of string table. */ -#define DT_SYMTAB 6 /* Address of symbol table. */ -#define DT_RELA 7 /* Address of ElfNN_Rela relocations. */ -#define DT_RELASZ 8 /* Total size of ElfNN_Rela relocations. */ -#define DT_RELAENT 9 /* Size of each ElfNN_Rela relocation entry. */ -#define DT_STRSZ 10 /* Size of string table. */ -#define DT_SYMENT 11 /* Size of each symbol table entry. */ -#define DT_INIT 12 /* Address of initialization function. */ -#define DT_FINI 13 /* Address of finalization function. */ -/* String table offset of shared object name. */ -#define DT_SONAME 14 -#define DT_RPATH 15 /* String table offset of library path. [sup] */ -#define DT_SYMBOLIC 16 /* Indicates "symbolic" linking. [sup] */ -#define DT_REL 17 /* Address of ElfNN_Rel relocations. */ -#define DT_RELSZ 18 /* Total size of ElfNN_Rel relocations. */ -#define DT_RELENT 19 /* Size of each ElfNN_Rel relocation. */ -#define DT_PLTREL 20 /* Type of relocation used for PLT. */ -#define DT_DEBUG 21 /* Reserved (not used). */ -/* Indicates there may be relocations in non-writable segments. [sup] */ -#define DT_TEXTREL 22 -#define DT_JMPREL 23 /* Address of PLT relocations. */ -#define DT_BIND_NOW 24 /* [sup] */ -/* Address of the array of pointers to initialization functions */ -#define DT_INIT_ARRAY 25 -/* Address of the array of pointers to termination functions */ -#define DT_FINI_ARRAY 26 -/* Size in bytes of the array of initialization functions. */ -#define DT_INIT_ARRAYSZ 27 -/* Size in bytes of the array of terminationfunctions. */ -#define DT_FINI_ARRAYSZ 28 -/* String table offset of a null-terminated library search path string. */ -#define DT_RUNPATH 29 -#define DT_FLAGS 30 /* Object specific flag values. */ -/* 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 */ -#define DT_ENCODING 32 -/* Address of the array of pointers to pre-initialization functions. */ -#define DT_PREINIT_ARRAY 32 -/* Size in bytes of the array of pre-initialization functions. */ -#define DT_PREINIT_ARRAYSZ 33 -#define DT_LOOS 0x6000000d /* First OS-specific */ -#define DT_HIOS 0x6ffff000 /* Last OS-specific */ -#define DT_LOPROC 0x70000000 /* First processor-specific type. */ -#define DT_HIPROC 0x7fffffff /* Last processor-specific type. */ - -#define DT_VERNEED 0x6ffffffe -#define DT_VERNEEDNUM 0x6fffffff -#define DT_VERSYM 0x6ffffff0 - -/* Values for DT_FLAGS */ -/* Indicates that the object being loaded may make reference to - the $ORIGIN substitution string */ -#define DF_ORIGIN 0x0001 -#define DF_SYMBOLIC 0x0002 /* Indicates "symbolic" linking. */ -/* Indicates there may be relocations in non-writable segments. */ -#define DF_TEXTREL 0x0004 -/* Indicates that the dynamic linker should process all - relocations for the object containing this entry before - transferring control to the program. */ -#define DF_BIND_NOW 0x0008 -/* Indicates that the shared object or executable contains code - using a static thread-local storage scheme. */ -#define DF_STATIC_TLS 0x0010 - -/* Values for n_type. Used in core files. */ -#define NT_PRSTATUS 1 /* Process status. */ -#define NT_FPREGSET 2 /* Floating point registers. */ -#define NT_PRPSINFO 3 /* Process state info. */ - -/* Symbol Binding - ELFNN_ST_BIND - st_info */ -#define STB_LOCAL 0 /* Local symbol */ -#define STB_GLOBAL 1 /* Global symbol */ -#define STB_WEAK 2 /* like global - lower precedence */ -#define STB_LOOS 10 /* Reserved range for operating system */ -#define STB_HIOS 12 /* specific semantics. */ -#define STB_LOPROC 13 /* reserved range for processor */ -#define STB_HIPROC 15 /* specific semantics. */ - -/* Symbol type - ELFNN_ST_TYPE - st_info */ -#define STT_NOTYPE 0 /* Unspecified type. */ -#define STT_OBJECT 1 /* Data object. */ -#define STT_FUNC 2 /* Function. */ -#define STT_SECTION 3 /* Section. */ -#define STT_FILE 4 /* Source file. */ -#define STT_COMMON 5 /* Uninitialized common block. */ -#define STT_TLS 6 /* TLS object. */ -#define STT_LOOS 10 /* Reserved range for operating system */ -#define STT_HIOS 12 /* specific semantics. */ -#define STT_LOPROC 13 /* reserved range for processor */ -#define STT_HIPROC 15 /* specific semantics. */ - -/* Symbol visibility - ELFNN_ST_VISIBILITY - st_other */ -#define STV_DEFAULT 0x0 /* Default visibility (see binding). */ -#define STV_INTERNAL 0x1 /* Special meaning in relocatable objects. */ -#define STV_HIDDEN 0x2 /* Not visible. */ -#define STV_PROTECTED 0x3 /* Visible but not preemptible. */ - -/* Special symbol table indexes. */ -#define STN_UNDEF 0 /* Undefined symbol index. */ - -/* - * ELF definitions common to all 32-bit architectures. - */ - -typedef uint32 Elf32_Addr; -typedef uint16 Elf32_Half; -typedef uint32 Elf32_Off; -typedef int32 Elf32_Sword; -typedef uint32 Elf32_Word; - -typedef Elf32_Word Elf32_Hashelt; - -/* Non-standard class-dependent datatype used for abstraction. */ -typedef Elf32_Word Elf32_Size; -typedef Elf32_Sword Elf32_Ssize; - -/* - * ELF header. - */ - -typedef struct { - unsigned char ident[EI_NIDENT]; /* File identification. */ - Elf32_Half type; /* File type. */ - Elf32_Half machine; /* Machine architecture. */ - Elf32_Word version; /* ELF format version. */ - Elf32_Addr entry; /* Entry point. */ - Elf32_Off phoff; /* Program header file offset. */ - Elf32_Off shoff; /* Section header file offset. */ - Elf32_Word flags; /* Architecture-specific flags. */ - Elf32_Half ehsize; /* Size of ELF header in bytes. */ - Elf32_Half phentsize; /* Size of program header entry. */ - Elf32_Half phnum; /* Number of program header entries. */ - Elf32_Half shentsize; /* Size of section header entry. */ - Elf32_Half shnum; /* Number of section header entries. */ - Elf32_Half shstrndx; /* Section name strings section. */ -} Elf32_Ehdr; - -/* - * Section header. - */ - -typedef struct { - Elf32_Word name; /* Section name (index into the - section header string table). */ - Elf32_Word type; /* Section type. */ - Elf32_Word flags; /* Section flags. */ - Elf32_Addr vaddr; /* Address in memory image. */ - Elf32_Off off; /* Offset in file. */ - Elf32_Word size; /* Size in bytes. */ - Elf32_Word link; /* Index of a related section. */ - Elf32_Word info; /* Depends on section type. */ - Elf32_Word addralign; /* Alignment in bytes. */ - Elf32_Word entsize; /* Size of each entry in section. */ -} Elf32_Shdr; - -/* - * Program header. - */ - -typedef struct { - Elf32_Word type; /* Entry type. */ - Elf32_Off off; /* File offset of contents. */ - Elf32_Addr vaddr; /* Virtual address in memory image. */ - Elf32_Addr paddr; /* Physical address (not used). */ - Elf32_Word filesz; /* Size of contents in file. */ - Elf32_Word memsz; /* Size of contents in memory. */ - Elf32_Word flags; /* Access permission flags. */ - Elf32_Word align; /* Alignment in memory and file. */ -} Elf32_Phdr; - -/* - * Dynamic structure. The ".dynamic" section contains an array of them. - */ - -typedef struct { - Elf32_Sword d_tag; /* Entry type. */ - union { - Elf32_Word d_val; /* Integer value. */ - Elf32_Addr d_ptr; /* Address value. */ - } d_un; -} Elf32_Dyn; - -/* - * Relocation entries. - */ - -/* Relocations that don't need an addend field. */ -typedef struct { - Elf32_Addr off; /* Location to be relocated. */ - Elf32_Word info; /* Relocation type and symbol index. */ -} Elf32_Rel; - -/* Relocations that need an addend field. */ -typedef struct { - Elf32_Addr off; /* Location to be relocated. */ - Elf32_Word info; /* Relocation type and symbol index. */ - Elf32_Sword addend; /* Addend. */ -} Elf32_Rela; - -/* Macros for accessing the fields of r_info. */ -#define ELF32_R_SYM(info) ((info) >> 8) -#define ELF32_R_TYPE(info) ((unsigned char)(info)) - -/* Macro for constructing r_info from field values. */ -#define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type)) - -/* - * Relocation types. - */ - -#define R_X86_64_NONE 0 /* No relocation. */ -#define R_X86_64_64 1 /* Add 64 bit symbol value. */ -#define R_X86_64_PC32 2 /* PC-relative 32 bit signed sym value. */ -#define R_X86_64_GOT32 3 /* PC-relative 32 bit GOT offset. */ -#define R_X86_64_PLT32 4 /* PC-relative 32 bit PLT offset. */ -#define R_X86_64_COPY 5 /* Copy data from shared object. */ -#define R_X86_64_GLOB_DAT 6 /* Set GOT entry to data address. */ -#define R_X86_64_JMP_SLOT 7 /* Set GOT entry to code address. */ -#define R_X86_64_RELATIVE 8 /* Add load address of shared object. */ -#define R_X86_64_GOTPCREL 9 /* Add 32 bit signed pcrel offset to GOT. */ -#define R_X86_64_32 10 /* Add 32 bit zero extended symbol value */ -#define R_X86_64_32S 11 /* Add 32 bit sign extended symbol value */ -#define R_X86_64_16 12 /* Add 16 bit zero extended symbol value */ -#define R_X86_64_PC16 13 /* Add 16 bit signed extended pc relative symbol value */ -#define R_X86_64_8 14 /* Add 8 bit zero extended symbol value */ -#define R_X86_64_PC8 15 /* Add 8 bit signed extended pc relative symbol value */ -#define R_X86_64_DTPMOD64 16 /* ID of module containing symbol */ -#define R_X86_64_DTPOFF64 17 /* Offset in TLS block */ -#define R_X86_64_TPOFF64 18 /* Offset in static TLS block */ -#define R_X86_64_TLSGD 19 /* PC relative offset to GD GOT entry */ -#define R_X86_64_TLSLD 20 /* PC relative offset to LD GOT entry */ -#define R_X86_64_DTPOFF32 21 /* Offset in TLS block */ -#define R_X86_64_GOTTPOFF 22 /* PC relative offset to IE GOT entry */ -#define R_X86_64_TPOFF32 23 /* Offset in static TLS block */ - -#define R_X86_64_COUNT 24 /* Count of defined relocation types. */ - - -#define R_ALPHA_NONE 0 /* No reloc */ -#define R_ALPHA_REFLONG 1 /* Direct 32 bit */ -#define R_ALPHA_REFQUAD 2 /* Direct 64 bit */ -#define R_ALPHA_GPREL32 3 /* GP relative 32 bit */ -#define R_ALPHA_LITERAL 4 /* GP relative 16 bit w/optimization */ -#define R_ALPHA_LITUSE 5 /* Optimization hint for LITERAL */ -#define R_ALPHA_GPDISP 6 /* Add displacement to GP */ -#define R_ALPHA_BRADDR 7 /* PC+4 relative 23 bit shifted */ -#define R_ALPHA_HINT 8 /* PC+4 relative 16 bit shifted */ -#define R_ALPHA_SREL16 9 /* PC relative 16 bit */ -#define R_ALPHA_SREL32 10 /* PC relative 32 bit */ -#define R_ALPHA_SREL64 11 /* PC relative 64 bit */ -#define R_ALPHA_OP_PUSH 12 /* OP stack push */ -#define R_ALPHA_OP_STORE 13 /* OP stack pop and store */ -#define R_ALPHA_OP_PSUB 14 /* OP stack subtract */ -#define R_ALPHA_OP_PRSHIFT 15 /* OP stack right shift */ -#define R_ALPHA_GPVALUE 16 -#define R_ALPHA_GPRELHIGH 17 -#define R_ALPHA_GPRELLOW 18 -#define R_ALPHA_IMMED_GP_16 19 -#define R_ALPHA_IMMED_GP_HI32 20 -#define R_ALPHA_IMMED_SCN_HI32 21 -#define R_ALPHA_IMMED_BR_HI32 22 -#define R_ALPHA_IMMED_LO32 23 -#define R_ALPHA_COPY 24 /* Copy symbol at runtime */ -#define R_ALPHA_GLOB_DAT 25 /* Create GOT entry */ -#define R_ALPHA_JMP_SLOT 26 /* Create PLT entry */ -#define R_ALPHA_RELATIVE 27 /* Adjust by program base */ - -#define R_ALPHA_COUNT 28 - - -#define R_ARM_NONE 0 /* No relocation. */ -#define R_ARM_PC24 1 -#define R_ARM_ABS32 2 -#define R_ARM_REL32 3 -#define R_ARM_PC13 4 -#define R_ARM_ABS16 5 -#define R_ARM_ABS12 6 -#define R_ARM_THM_ABS5 7 -#define R_ARM_ABS8 8 -#define R_ARM_SBREL32 9 -#define R_ARM_THM_PC22 10 -#define R_ARM_THM_PC8 11 -#define R_ARM_AMP_VCALL9 12 -#define R_ARM_SWI24 13 -#define R_ARM_THM_SWI8 14 -#define R_ARM_XPC25 15 -#define R_ARM_THM_XPC22 16 -#define R_ARM_COPY 20 /* Copy data from shared object. */ -#define R_ARM_GLOB_DAT 21 /* Set GOT entry to data address. */ -#define R_ARM_JUMP_SLOT 22 /* Set GOT entry to code address. */ -#define R_ARM_RELATIVE 23 /* Add load address of shared object. */ -#define R_ARM_GOTOFF 24 /* Add GOT-relative symbol address. */ -#define R_ARM_GOTPC 25 /* Add PC-relative GOT table address. */ -#define R_ARM_GOT32 26 /* Add PC-relative GOT offset. */ -#define R_ARM_PLT32 27 /* Add PC-relative PLT offset. */ -#define R_ARM_GNU_VTENTRY 100 -#define R_ARM_GNU_VTINHERIT 101 -#define R_ARM_RSBREL32 250 -#define R_ARM_THM_RPC22 251 -#define R_ARM_RREL32 252 -#define R_ARM_RABS32 253 -#define R_ARM_RPC24 254 -#define R_ARM_RBASE 255 - -#define R_ARM_COUNT 33 /* Count of defined relocation types. */ - - -#define R_386_NONE 0 /* No relocation. */ -#define R_386_32 1 /* Add symbol value. */ -#define R_386_PC32 2 /* Add PC-relative symbol value. */ -#define R_386_GOT32 3 /* Add PC-relative GOT offset. */ -#define R_386_PLT32 4 /* Add PC-relative PLT offset. */ -#define R_386_COPY 5 /* Copy data from shared object. */ -#define R_386_GLOB_DAT 6 /* Set GOT entry to data address. */ -#define R_386_JMP_SLOT 7 /* Set GOT entry to code address. */ -#define R_386_RELATIVE 8 /* Add load address of shared object. */ -#define R_386_GOTOFF 9 /* Add GOT-relative symbol address. */ -#define R_386_GOTPC 10 /* Add PC-relative GOT table address. */ -#define R_386_TLS_TPOFF 14 /* Negative offset in static TLS block */ -#define R_386_TLS_IE 15 /* Absolute address of GOT for -ve static TLS */ -#define R_386_TLS_GOTIE 16 /* GOT entry for negative static TLS block */ -#define R_386_TLS_LE 17 /* Negative offset relative to static TLS */ -#define R_386_TLS_GD 18 /* 32 bit offset to GOT (index,off) pair */ -#define R_386_TLS_LDM 19 /* 32 bit offset to GOT (index,zero) pair */ -#define R_386_TLS_GD_32 24 /* 32 bit offset to GOT (index,off) pair */ -#define R_386_TLS_GD_PUSH 25 /* pushl instruction for Sun ABI GD sequence */ -#define R_386_TLS_GD_CALL 26 /* call instruction for Sun ABI GD sequence */ -#define R_386_TLS_GD_POP 27 /* popl instruction for Sun ABI GD sequence */ -#define R_386_TLS_LDM_32 28 /* 32 bit offset to GOT (index,zero) pair */ -#define R_386_TLS_LDM_PUSH 29 /* pushl instruction for Sun ABI LD sequence */ -#define R_386_TLS_LDM_CALL 30 /* call instruction for Sun ABI LD sequence */ -#define R_386_TLS_LDM_POP 31 /* popl instruction for Sun ABI LD sequence */ -#define R_386_TLS_LDO_32 32 /* 32 bit offset from start of TLS block */ -#define R_386_TLS_IE_32 33 /* 32 bit offset to GOT static TLS offset entry */ -#define R_386_TLS_LE_32 34 /* 32 bit offset within static TLS block */ -#define R_386_TLS_DTPMOD32 35 /* GOT entry containing TLS index */ -#define R_386_TLS_DTPOFF32 36 /* GOT entry containing TLS offset */ -#define R_386_TLS_TPOFF32 37 /* GOT entry of -ve static TLS offset */ - -#define R_386_COUNT 38 /* Count of defined relocation types. */ - -#define R_PPC_NONE 0 /* No relocation. */ -#define R_PPC_ADDR32 1 -#define R_PPC_ADDR24 2 -#define R_PPC_ADDR16 3 -#define R_PPC_ADDR16_LO 4 -#define R_PPC_ADDR16_HI 5 -#define R_PPC_ADDR16_HA 6 -#define R_PPC_ADDR14 7 -#define R_PPC_ADDR14_BRTAKEN 8 -#define R_PPC_ADDR14_BRNTAKEN 9 -#define R_PPC_REL24 10 -#define R_PPC_REL14 11 -#define R_PPC_REL14_BRTAKEN 12 -#define R_PPC_REL14_BRNTAKEN 13 -#define R_PPC_GOT16 14 -#define R_PPC_GOT16_LO 15 -#define R_PPC_GOT16_HI 16 -#define R_PPC_GOT16_HA 17 -#define R_PPC_PLTREL24 18 -#define R_PPC_COPY 19 -#define R_PPC_GLOB_DAT 20 -#define R_PPC_JMP_SLOT 21 -#define R_PPC_RELATIVE 22 -#define R_PPC_LOCAL24PC 23 -#define R_PPC_UADDR32 24 -#define R_PPC_UADDR16 25 -#define R_PPC_REL32 26 -#define R_PPC_PLT32 27 -#define R_PPC_PLTREL32 28 -#define R_PPC_PLT16_LO 29 -#define R_PPC_PLT16_HI 30 -#define R_PPC_PLT16_HA 31 -#define R_PPC_SDAREL16 32 -#define R_PPC_SECTOFF 33 -#define R_PPC_SECTOFF_LO 34 -#define R_PPC_SECTOFF_HI 35 -#define R_PPC_SECTOFF_HA 36 - -#define R_PPC_COUNT 37 /* Count of defined relocation types. */ - -#define R_PPC_TLS 67 -#define R_PPC_DTPMOD32 68 -#define R_PPC_TPREL16 69 -#define R_PPC_TPREL16_LO 70 -#define R_PPC_TPREL16_HI 71 -#define R_PPC_TPREL16_HA 72 -#define R_PPC_TPREL32 73 -#define R_PPC_DTPREL16 74 -#define R_PPC_DTPREL16_LO 75 -#define R_PPC_DTPREL16_HI 76 -#define R_PPC_DTPREL16_HA 77 -#define R_PPC_DTPREL32 78 -#define R_PPC_GOT_TLSGD16 79 -#define R_PPC_GOT_TLSGD16_LO 80 -#define R_PPC_GOT_TLSGD16_HI 81 -#define R_PPC_GOT_TLSGD16_HA 82 -#define R_PPC_GOT_TLSLD16 83 -#define R_PPC_GOT_TLSLD16_LO 84 -#define R_PPC_GOT_TLSLD16_HI 85 -#define R_PPC_GOT_TLSLD16_HA 86 -#define R_PPC_GOT_TPREL16 87 -#define R_PPC_GOT_TPREL16_LO 88 -#define R_PPC_GOT_TPREL16_HI 89 -#define R_PPC_GOT_TPREL16_HA 90 - -#define R_PPC_EMB_NADDR32 101 -#define R_PPC_EMB_NADDR16 102 -#define R_PPC_EMB_NADDR16_LO 103 -#define R_PPC_EMB_NADDR16_HI 104 -#define R_PPC_EMB_NADDR16_HA 105 -#define R_PPC_EMB_SDAI16 106 -#define R_PPC_EMB_SDA2I16 107 -#define R_PPC_EMB_SDA2REL 108 -#define R_PPC_EMB_SDA21 109 -#define R_PPC_EMB_MRKREF 110 -#define R_PPC_EMB_RELSEC16 111 -#define R_PPC_EMB_RELST_LO 112 -#define R_PPC_EMB_RELST_HI 113 -#define R_PPC_EMB_RELST_HA 114 -#define R_PPC_EMB_BIT_FLD 115 -#define R_PPC_EMB_RELSDA 116 - - /* Count of defined relocation types. */ -#define R_PPC_EMB_COUNT (R_PPC_EMB_RELSDA - R_PPC_EMB_NADDR32 + 1) - - -#define R_SPARC_NONE 0 -#define R_SPARC_8 1 -#define R_SPARC_16 2 -#define R_SPARC_32 3 -#define R_SPARC_DISP8 4 -#define R_SPARC_DISP16 5 -#define R_SPARC_DISP32 6 -#define R_SPARC_WDISP30 7 -#define R_SPARC_WDISP22 8 -#define R_SPARC_HI22 9 -#define R_SPARC_22 10 -#define R_SPARC_13 11 -#define R_SPARC_LO10 12 -#define R_SPARC_GOT10 13 -#define R_SPARC_GOT13 14 -#define R_SPARC_GOT22 15 -#define R_SPARC_PC10 16 -#define R_SPARC_PC22 17 -#define R_SPARC_WPLT30 18 -#define R_SPARC_COPY 19 -#define R_SPARC_GLOB_DAT 20 -#define R_SPARC_JMP_SLOT 21 -#define R_SPARC_RELATIVE 22 -#define R_SPARC_UA32 23 -#define R_SPARC_PLT32 24 -#define R_SPARC_HIPLT22 25 -#define R_SPARC_LOPLT10 26 -#define R_SPARC_PCPLT32 27 -#define R_SPARC_PCPLT22 28 -#define R_SPARC_PCPLT10 29 -#define R_SPARC_10 30 -#define R_SPARC_11 31 -#define R_SPARC_64 32 -#define R_SPARC_OLO10 33 -#define R_SPARC_HH22 34 -#define R_SPARC_HM10 35 -#define R_SPARC_LM22 36 -#define R_SPARC_PC_HH22 37 -#define R_SPARC_PC_HM10 38 -#define R_SPARC_PC_LM22 39 -#define R_SPARC_WDISP16 40 -#define R_SPARC_WDISP19 41 -#define R_SPARC_GLOB_JMP 42 -#define R_SPARC_7 43 -#define R_SPARC_5 44 -#define R_SPARC_6 45 -#define R_SPARC_DISP64 46 -#define R_SPARC_PLT64 47 -#define R_SPARC_HIX22 48 -#define R_SPARC_LOX10 49 -#define R_SPARC_H44 50 -#define R_SPARC_M44 51 -#define R_SPARC_L44 52 -#define R_SPARC_REGISTER 53 -#define R_SPARC_UA64 54 -#define R_SPARC_UA16 55 - - -/* - * Magic number for the elf trampoline, chosen wisely to be an immediate - * value. - */ -#define ARM_MAGIC_TRAMP_NUMBER 0x5c000003 - - -/* - * Symbol table entries. - */ - -typedef struct { - Elf32_Word name; /* String table index of name. */ - Elf32_Addr value; /* Symbol value. */ - Elf32_Word size; /* Size of associated object. */ - unsigned char info; /* Type and binding information. */ - unsigned char other; /* Reserved (not used). */ - Elf32_Half shndx; /* Section index of symbol. */ -} Elf32_Sym; - -/* Macros for accessing the fields of st_info. */ -#define ELF32_ST_BIND(info) ((info) >> 4) -#define ELF32_ST_TYPE(info) ((info) & 0xf) - -/* Macro for constructing st_info from field values. */ -#define ELF32_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) - -/* Macro for accessing the fields of st_other. */ -#define ELF32_ST_VISIBILITY(oth) ((oth) & 0x3) - -/* - * ELF definitions common to all 64-bit architectures. - */ - -typedef uint64 Elf64_Addr; -typedef uint16 Elf64_Half; -typedef uint64 Elf64_Off; -typedef int32 Elf64_Sword; -typedef int64 Elf64_Sxword; -typedef uint32 Elf64_Word; -typedef uint64 Elf64_Xword; - -/* - * Types of dynamic symbol hash table bucket and chain elements. - * - * This is inconsistent among 64 bit architectures, so a machine dependent - * typedef is required. - */ - -#ifdef __alpha__ -typedef Elf64_Off Elf64_Hashelt; -#else -typedef Elf64_Word Elf64_Hashelt; -#endif - -/* Non-standard class-dependent datatype used for abstraction. */ -typedef Elf64_Xword Elf64_Size; -typedef Elf64_Sxword Elf64_Ssize; - -/* - * ELF header. - */ - -typedef struct { - unsigned char ident[EI_NIDENT]; /* File identification. */ - Elf64_Half type; /* File type. */ - Elf64_Half machine; /* Machine architecture. */ - Elf64_Word version; /* ELF format version. */ - Elf64_Addr entry; /* Entry point. */ - Elf64_Off phoff; /* Program header file offset. */ - Elf64_Off shoff; /* Section header file offset. */ - Elf64_Word flags; /* Architecture-specific flags. */ - Elf64_Half ehsize; /* Size of ELF header in bytes. */ - Elf64_Half phentsize; /* Size of program header entry. */ - Elf64_Half phnum; /* Number of program header entries. */ - Elf64_Half shentsize; /* Size of section header entry. */ - Elf64_Half shnum; /* Number of section header entries. */ - Elf64_Half shstrndx; /* Section name strings section. */ -} Elf64_Ehdr; - -/* - * Section header. - */ - -typedef struct { - Elf64_Word name; /* Section name (index into the - section header string table). */ - Elf64_Word type; /* Section type. */ - Elf64_Xword flags; /* Section flags. */ - Elf64_Addr addr; /* Address in memory image. */ - Elf64_Off off; /* Offset in file. */ - Elf64_Xword size; /* Size in bytes. */ - Elf64_Word link; /* Index of a related section. */ - Elf64_Word info; /* Depends on section type. */ - Elf64_Xword addralign; /* Alignment in bytes. */ - Elf64_Xword entsize; /* Size of each entry in section. */ -} Elf64_Shdr; - -/* - * Program header. - */ - -typedef struct { - Elf64_Word type; /* Entry type. */ - Elf64_Word flags; /* Access permission flags. */ - Elf64_Off off; /* File offset of contents. */ - Elf64_Addr vaddr; /* Virtual address in memory image. */ - Elf64_Addr paddr; /* Physical address (not used). */ - Elf64_Xword filesz; /* Size of contents in file. */ - Elf64_Xword memsz; /* Size of contents in memory. */ - Elf64_Xword align; /* Alignment in memory and file. */ -} Elf64_Phdr; - -/* - * Dynamic structure. The ".dynamic" section contains an array of them. - */ - -typedef struct { - Elf64_Sxword d_tag; /* Entry type. */ - union { - Elf64_Xword d_val; /* Integer value. */ - Elf64_Addr d_ptr; /* Address value. */ - } d_un; -} Elf64_Dyn; - -/* - * Relocation entries. - */ - -/* Relocations that don't need an addend field. */ -typedef struct { - Elf64_Addr off; /* Location to be relocated. */ - Elf64_Xword info; /* Relocation type and symbol index. */ -} Elf64_Rel; - -/* Relocations that need an addend field. */ -typedef struct { - Elf64_Addr off; /* Location to be relocated. */ - Elf64_Xword info; /* Relocation type and symbol index. */ - Elf64_Sxword addend; /* Addend. */ -} Elf64_Rela; - -/* Macros for accessing the fields of r_info. */ -#define ELF64_R_SYM(info) ((info) >> 32) -#define ELF64_R_TYPE(info) ((info) & 0xffffffffL) - -/* Macro for constructing r_info from field values. */ -#define ELF64_R_INFO(sym, type) ((((uint64)(sym)) << 32) + (((uint64)(type)) & 0xffffffffULL)) - -/* - * Symbol table entries. - */ - -typedef struct { - Elf64_Word name; /* String table index of name. */ - unsigned char info; /* Type and binding information. */ - unsigned char other; /* Reserved (not used). */ - Elf64_Half shndx; /* Section index of symbol. */ - Elf64_Addr value; /* Symbol value. */ - Elf64_Xword size; /* Size of associated object. */ -} Elf64_Sym; - -/* Macros for accessing the fields of st_info. */ -#define ELF64_ST_BIND(info) ((info) >> 4) -#define ELF64_ST_TYPE(info) ((info) & 0xf) - -/* Macro for constructing st_info from field values. */ -#define ELF64_ST_INFO(bind, type) (((bind) << 4) + ((type) & 0xf)) - -/* Macro for accessing the fields of st_other. */ -#define ELF64_ST_VISIBILITY(oth) ((oth) & 0x3) - -/* - * Go linker interface - */ - -#define ELF64HDRSIZE 64 -#define ELF64PHDRSIZE 56 -#define ELF64SHDRSIZE 64 -#define ELF64RELSIZE 16 -#define ELF64RELASIZE 24 -#define ELF64SYMSIZE sizeof(Elf64_Sym) - -#define ELF32HDRSIZE sizeof(Elf32_Ehdr) -#define ELF32PHDRSIZE sizeof(Elf32_Phdr) -#define ELF32SHDRSIZE sizeof(Elf32_Shdr) -#define ELF32SYMSIZE sizeof(Elf32_Sym) -#define ELF32RELSIZE 8 - -/* - * The interface uses the 64-bit structures always, - * to avoid code duplication. The writers know how to - * marshal a 32-bit representation from the 64-bit structure. - */ -typedef Elf64_Ehdr ElfEhdr; -typedef Elf64_Shdr ElfShdr; -typedef Elf64_Phdr ElfPhdr; - -void elfinit(void); -ElfEhdr *getElfEhdr(void); -ElfShdr *newElfShstrtab(vlong); -ElfShdr *newElfShdr(vlong); -ElfPhdr *newElfPhdr(void); -uint32 elfwritehdr(void); -uint32 elfwritephdrs(void); -uint32 elfwriteshdrs(void); -void elfwritedynent(Sym*, int, uint64); -void elfwritedynentsym(Sym*, int, Sym*); -void elfwritedynentsymsize(Sym*, int, Sym*); -uint32 elfhash(uchar*); -uint64 startelf(void); -uint64 endelf(void); -extern int numelfphdr; -extern int numelfshdr; -extern int iself; -extern int elfverneed; -int elfwriteinterp(void); -void elfinterp(ElfShdr*, uint64, char*); -void elfdynhash(void); -ElfPhdr* elfphload(Segment*); -ElfShdr* elfshbits(Section*); -void elfsetstring(char*, int); -void elfaddverneed(Sym*); - -EXTERN int elfstrsize; -EXTERN char* elfstrdat; -EXTERN int elftextsh; - -/* - * Total amount of space to reserve at the start of the file - * for Header, PHeaders, SHeaders, and interp. - * May waste some. - * On FreeBSD, cannot be larger than a page. - */ -#define ELFRESERVE 3072 |