* Add more OS ABI constants and dynamic array tags from D1998-04-29.
* Enhance readibility: define data structures first, followed member value constants, and add more comments.
This commit is contained in:
kleink
parent
b7b0fe0dd0
commit
ed0b97c110
@ -1,4 +1,4 @@
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/* $NetBSD: exec_elf.h,v 1.35 2000/02/22 10:49:19 kleink Exp $ */
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/* $NetBSD: exec_elf.h,v 1.36 2000/02/22 13:57:23 kleink Exp $ */
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/*-
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* Copyright (c) 1994 The NetBSD Foundation, Inc.
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@ -69,16 +69,100 @@ typedef u_int32_t Elf64_Half;
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typedef u_int16_t Elf64_Quarter;
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#define ELF64_FSZ_QUARTER 2
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/*
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* ELF Header
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*/
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#define ELF_NIDENT 16
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#define ET_NONE 0
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#define ET_REL 1
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#define ET_EXEC 2
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#define ET_DYN 3
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#define ET_CORE 4
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typedef struct {
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unsigned char e_ident[ELF_NIDENT]; /* Id bytes */
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Elf32_Half e_type; /* file type */
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Elf32_Half e_machine; /* machine type */
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Elf32_Word e_version; /* version number */
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Elf32_Addr e_entry; /* entry point */
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Elf32_Off e_phoff; /* Program hdr offset */
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Elf32_Off e_shoff; /* Section hdr offset */
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Elf32_Word e_flags; /* Processor flags */
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Elf32_Half e_ehsize; /* sizeof ehdr */
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Elf32_Half e_phentsize; /* Program header entry size */
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Elf32_Half e_phnum; /* Number of program headers */
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Elf32_Half e_shentsize; /* Section header entry size */
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Elf32_Half e_shnum; /* Number of section headers */
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Elf32_Half e_shstrndx; /* String table index */
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} Elf32_Ehdr;
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typedef struct {
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unsigned char e_ident[ELF_NIDENT]; /* Id bytes */
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Elf64_Quarter e_type; /* file type */
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Elf64_Quarter e_machine; /* machine type */
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Elf64_Half e_version; /* version number */
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Elf64_Addr e_entry; /* entry point */
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Elf64_Off e_phoff; /* Program hdr offset */
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Elf64_Off e_shoff; /* Section hdr offset */
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Elf64_Half e_flags; /* Processor flags */
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Elf64_Quarter e_ehsize; /* sizeof ehdr */
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Elf64_Quarter e_phentsize; /* Program header entry size */
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Elf64_Quarter e_phnum; /* Number of program headers */
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Elf64_Quarter e_shentsize; /* Section header entry size */
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Elf64_Quarter e_shnum; /* Number of section headers */
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Elf64_Quarter e_shstrndx; /* String table index */
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} Elf64_Ehdr;
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/* e_ident offsets */
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#define EI_MAG0 0 /* '\177' */
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#define EI_MAG1 1 /* 'E' */
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#define EI_MAG2 2 /* 'L' */
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#define EI_MAG3 3 /* 'F' */
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#define EI_CLASS 4 /* File class */
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#define EI_DATA 5 /* Data encoding */
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#define EI_VERSION 6 /* File version */
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#define EI_OSABI 7 /* Operating system/ABI identification */
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#define EI_ABIVERSION 8 /* ABI version */
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#define EI_PAD 9 /* Start of padding bytes up to EI_NIDENT*/
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/* e_ident[ELFMAG0,ELFMAG3] */
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#define ELFMAG0 0x7f
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#define ELFMAG1 'E'
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#define ELFMAG2 'L'
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#define ELFMAG3 'F'
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#define ELFMAG "\177ELF"
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#define SELFMAG 4
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/* e_ident[EI_CLASS] */
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#define ELFCLASSNONE 0 /* Invalid class */
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#define ELFCLASS32 1 /* 32-bit objects */
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#define ELFCLASS64 2 /* 64-bit objects */
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#define ELFCLASSNUM 3
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/* e_ident[EI_DATA] */
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#define ELFDATANONE 0 /* Invalid data encoding */
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#define ELFDATA2LSB 1 /* 2's complement values, LSB first */
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#define ELFDATA2MSB 2 /* 2's complement values, MSB first */
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/* e_ident[EI_VERSION] */
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#define EV_NONE 0 /* Invalid version */
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#define EV_CURRENT 1 /* Current version */
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#define EV_NUM 2
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/* e_ident[EI_OSABI] */
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#define ELFOSABI_SYSV 0 /* UNIX System V ABI */
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#define ELFOSABI_HPUX 1 /* HP-UX operating system */
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#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
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/* e_type */
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#define ET_NONE 0 /* No file type */
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#define ET_REL 1 /* Relocatable file */
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#define ET_EXEC 2 /* Executable file */
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#define ET_DYN 3 /* Shared object file */
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#define ET_CORE 4 /* Core file */
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#define ET_NUM 5
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#define ET_LOOS 0xfe00 /* Operating system specific range */
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#define ET_HIOS 0xfeff
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#define ET_LOPROC 0xff00 /* Processor-specific range */
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#define ET_HIPROC 0xffff
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/* e_machine */
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#define EM_NONE 0 /* No machine */
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#define EM_M32 1 /* AT&T WE 32100 */
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#define EM_SPARC 2 /* SPARC */
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@ -119,95 +203,9 @@ typedef u_int16_t Elf64_Quarter;
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#define EM_ALPHA_EXP 36902 /* used by NetBSD/alpha; obsolete */
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#define EM_NUM 36903
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#define ELFCLASSNONE 0 /* Invalid class */
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#define ELFCLASS32 1 /* 32-bit objects */
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#define ELFCLASS64 2 /* 64-bit objects */
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#define ELFCLASSNUM 3
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#define EI_MAG0 0
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#define EI_MAG1 1
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#define EI_MAG2 2
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#define EI_MAG3 3
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#define EI_CLASS 4
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#define EI_DATA 5
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#define EI_VERSION 6
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#define EI_OSABI 7
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#define EI_ABIVERSION 8
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#define EI_PAD 9
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#define ELFDATANONE 0 /* Invalid data encoding */
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#define ELFDATA2LSB 1 /* 2's complement values, LSB first */
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#define ELFDATA2MSB 2 /* 2's complement values, MSB first */
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#define EV_NONE 0 /* Invalid version */
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#define EV_CURRENT 1 /* Current version */
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#define EV_NUM 2
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#define ELFOSABI_SYSV 0 /* UNIX System V ABI */
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#define ELFOSABI_HPUX 1 /* HP-UX operating system */
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#define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */
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#define PF_R 0x4 /* Segment is readable */
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#define PF_W 0x2 /* Segment is writable */
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#define PF_X 0x1 /* Segment is executable */
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#define PF_MASKPROC 0xf0000000 /* Processor-specific values */
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typedef struct {
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unsigned char e_ident[ELF_NIDENT]; /* Id bytes */
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Elf32_Half e_type; /* file type */
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Elf32_Half e_machine; /* machine type */
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Elf32_Word e_version; /* version number */
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Elf32_Addr e_entry; /* entry point */
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Elf32_Off e_phoff; /* Program hdr offset */
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Elf32_Off e_shoff; /* Section hdr offset */
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Elf32_Word e_flags; /* Processor flags */
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Elf32_Half e_ehsize; /* sizeof ehdr */
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Elf32_Half e_phentsize; /* Program header entry size */
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Elf32_Half e_phnum; /* Number of program headers */
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Elf32_Half e_shentsize; /* Section header entry size */
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Elf32_Half e_shnum; /* Number of section headers */
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Elf32_Half e_shstrndx; /* String table index */
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} Elf32_Ehdr;
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typedef struct {
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unsigned char e_ident[ELF_NIDENT]; /* Id bytes */
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Elf64_Quarter e_type; /* file type */
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Elf64_Quarter e_machine; /* machine type */
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Elf64_Half e_version; /* version number */
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Elf64_Addr e_entry; /* entry point */
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Elf64_Off e_phoff; /* Program hdr offset */
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Elf64_Off e_shoff; /* Section hdr offset */
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Elf64_Half e_flags; /* Processor flags */
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Elf64_Quarter e_ehsize; /* sizeof ehdr */
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Elf64_Quarter e_phentsize; /* Program header entry size */
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Elf64_Quarter e_phnum; /* Number of program headers */
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Elf64_Quarter e_shentsize; /* Section header entry size */
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Elf64_Quarter e_shnum; /* Number of section headers */
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Elf64_Quarter e_shstrndx; /* String table index */
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} Elf64_Ehdr;
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#define ELFMAG0 0x7f
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#define ELFMAG1 'E'
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#define ELFMAG2 'L'
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#define ELFMAG3 'F'
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#define ELFMAG "\177ELF"
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#define SELFMAG 4
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#define PT_NULL 0 /* Program header table entry unused */
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#define PT_LOAD 1 /* Loadable program segment */
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#define PT_DYNAMIC 2 /* Dynamic linking information */
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#define PT_INTERP 3 /* Program interpreter */
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#define PT_NOTE 4 /* Auxiliary information */
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#define PT_SHLIB 5 /* Reserved, unspecified semantics */
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#define PT_PHDR 6 /* Entry for header table itself */
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#define PT_NUM 7
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#define PT_LOPROC 0x70000000 /* Processor-specific range */
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#define PT_HIPROC 0x7fffffff
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#define PT_MIPS_REGINFO 0x70000000
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/*
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* Program Header
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*/
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typedef struct {
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Elf32_Word p_type; /* entry type */
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Elf32_Off p_offset; /* offset */
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@ -230,9 +228,59 @@ typedef struct {
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Elf64_Word p_align; /* memory & file alignment */
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} Elf64_Phdr;
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/* p_type */
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#define PT_NULL 0 /* Program header table entry unused */
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#define PT_LOAD 1 /* Loadable program segment */
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#define PT_DYNAMIC 2 /* Dynamic linking information */
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#define PT_INTERP 3 /* Program interpreter */
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#define PT_NOTE 4 /* Auxiliary information */
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#define PT_SHLIB 5 /* Reserved, unspecified semantics */
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#define PT_PHDR 6 /* Entry for header table itself */
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#define PT_NUM 7
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/* p_flags */
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#define PF_R 0x4 /* Segment is readable */
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#define PF_W 0x2 /* Segment is writable */
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#define PF_X 0x1 /* Segment is executable */
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#define PF_MASKOS 0x0ff00000 /* Opersting system specific values */
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#define PF_MASKPROC 0xf0000000 /* Processor-specific values */
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#define PT_LOPROC 0x70000000 /* Processor-specific range */
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#define PT_HIPROC 0x7fffffff
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#define PT_MIPS_REGINFO 0x70000000
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/*
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* Section Headers
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*/
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typedef struct {
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Elf32_Word sh_name; /* section name (.shstrtab index) */
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Elf32_Word sh_type; /* section type */
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Elf32_Word sh_flags; /* section flags */
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Elf32_Addr sh_addr; /* virtual address */
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Elf32_Off sh_offset; /* file offset */
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Elf32_Word sh_size; /* section size */
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Elf32_Word sh_link; /* link to another */
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Elf32_Word sh_info; /* misc info */
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Elf32_Word sh_addralign; /* memory alignment */
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Elf32_Word sh_entsize; /* table entry size */
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} Elf32_Shdr;
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typedef struct {
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Elf64_Half sh_name; /* section name (.shstrtab index) */
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Elf64_Half sh_type; /* section type */
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Elf64_Word sh_flags; /* section flags */
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Elf64_Addr sh_addr; /* virtual address */
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Elf64_Off sh_offset; /* file offset */
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Elf64_Word sh_size; /* section size */
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Elf64_Half sh_link; /* link to another */
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Elf64_Half sh_info; /* misc info */
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Elf64_Word sh_addralign; /* memory alignment */
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Elf64_Word sh_entsize; /* table entry size */
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} Elf64_Shdr;
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/* sh_type */
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#define SHT_NULL 0
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#define SHT_PROGBITS 1
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#define SHT_SYMTAB 2
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@ -247,51 +295,26 @@ typedef struct {
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#define SHT_DYNSYM 11
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#define SHT_NUM 12
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#define SHT_LOUSER 0x80000000
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#define SHT_HIUSER 0xffffffff
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#define SHT_LOOS 0x60000000 /* Operating system specific range */
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#define SHT_HIOS 0x6fffffff
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#define SHT_LOPROC 0x70000000 /* Processor-specific range */
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#define SHT_HIPROC 0x7fffffff
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#define SHT_LOUSER 0x80000000 /* Application-specific range */
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#define SHT_HIUSER 0xffffffff
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typedef struct {
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Elf32_Word sh_name; /* section name */
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Elf32_Word sh_type; /* section type */
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Elf32_Word sh_flags; /* section flags */
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Elf32_Addr sh_addr; /* virtual address */
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Elf32_Off sh_offset; /* file offset */
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Elf32_Word sh_size; /* section size */
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Elf32_Word sh_link; /* link to another */
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Elf32_Word sh_info; /* misc info */
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Elf32_Word sh_addralign; /* memory alignment */
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Elf32_Word sh_entsize; /* table entry size */
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} Elf32_Shdr;
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typedef struct {
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Elf64_Half sh_name; /* section name */
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Elf64_Half sh_type; /* section type */
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Elf64_Word sh_flags; /* section flags */
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Elf64_Addr sh_addr; /* virtual address */
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Elf64_Off sh_offset; /* file offset */
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Elf64_Word sh_size; /* section size */
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Elf64_Half sh_link; /* link to another */
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Elf64_Half sh_info; /* misc info */
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Elf64_Word sh_addralign; /* memory alignment */
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Elf64_Word sh_entsize; /* table entry size */
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} Elf64_Shdr;
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/*
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* Bits for sh_flags
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*/
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/* sh_flags */
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#define SHF_WRITE 0x1 /* Section contains writable data */
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#define SHF_ALLOC 0x2 /* Section occupies memory */
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#define SHF_EXECINSTR 0x4 /* Section contains executable insns */
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#define SHF_MASKOS 0x0f000000 /* Operating system specific values */
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#define SHF_MASKPROC 0xf0000000 /* Processor-specific values */
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/*
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* Symbol Definitions
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* Symbol Table
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*/
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typedef struct {
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Elf32_Word st_name; /* Symbol name index in str table */
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Elf32_Word st_name; /* Symbol name (.symtab index) */
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Elf32_Word st_value; /* value of symbol */
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Elf32_Word st_size; /* size of symbol */
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Elf_Byte st_info; /* type / binding attrs */
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@ -300,7 +323,7 @@ typedef struct {
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} Elf32_Sym;
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typedef struct {
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Elf64_Half st_name; /* Symbol name index in str table */
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Elf64_Half st_name; /* Symbol name (.symtab index) */
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Elf_Byte st_info; /* type / binding attrs */
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Elf_Byte st_other; /* unused */
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Elf64_Quarter st_shndx; /* section index of symbol */
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@ -308,18 +331,21 @@ typedef struct {
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Elf64_Word st_size; /* size of symbol */
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} Elf64_Sym;
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/* Symbol Table index of the undefined symbol */
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#define ELF_SYM_UNDEFINED 0
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/* Symbol bindings */
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/* st_info: Symbol Bindings */
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#define STB_LOCAL 0 /* local symbol */
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#define STB_GLOBAL 1 /* global symbol */
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#define STB_WEAK 2 /* weakly defined global symbol */
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#define STB_NUM 3
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#define STB_LOOS 10 /* Operating system specific range */
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#define STB_HIOS 12
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#define STB_LOPROC 13 /* Processor-specific range */
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#define STB_HIPROC 15
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/* Symbol types */
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/* st_info: Symbol Types */
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#define STT_NOTYPE 0 /* Type not specified */
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#define STT_OBJECT 1 /* Associated with a data object */
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#define STT_FUNC 2 /* Associated with a function */
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@ -327,9 +353,12 @@ typedef struct {
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#define STT_FILE 4 /* Associated with a file name */
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#define STT_NUM 5
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#define STT_LOOS 10 /* Operating system specific range */
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#define STT_HIOS 12
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#define STT_LOPROC 13 /* Processor-specific range */
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#define STT_HIPROC 15
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/* st_info utility macros */
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#define ELF32_ST_BIND(info) ((Elf32_Word)(info) >> 4)
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#define ELF32_ST_TYPE(info) ((Elf32_Word)(info) & 0xf)
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#define ELF32_ST_INFO(bind,type) ((Elf_Byte)(((bind) << 4) | ((type) & 0xf)))
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@ -342,13 +371,16 @@ typedef struct {
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* Special section indexes
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*/
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#define SHN_UNDEF 0 /* Undefined section */
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#define SHN_LORESERVE 0xff00 /* Reserved range */
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#define SHN_ABS 0xfff1 /* Absolute symbol */
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#define SHN_COMMON 0xfff2 /* Common symbol */
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#define SHN_ABS 0xfff1 /* Absolute symbols */
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#define SHN_COMMON 0xfff2 /* Common symbols */
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#define SHN_HIRESERVE 0xffff
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#define SHN_LOPROC 0xff00 /* Rrocessor-specific range */
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#define SHN_LOPROC 0xff00 /* Processor-specific range */
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#define SHN_HIPROC 0xff1f
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#define SHN_LOOS 0xff20 /* Operating system specific range */
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#define SHN_HIOS 0xff3f
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#define SHN_MIPS_ACOMMON 0xff00
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#define SHN_MIPS_TEXT 0xff01
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@ -369,25 +401,30 @@ typedef struct {
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Elf32_Word r_addend; /* adjustment value */
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} Elf32_RelA;
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typedef struct {
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Elf64_Word r_offset; /* where to do it */
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Elf64_Word r_info; /* index & type of relocation */
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} Elf64_Rel;
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/* r_info utility macros */
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#define ELF32_R_SYM(info) ((info) >> 8)
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#define ELF32_R_TYPE(info) ((info) & 0xff)
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#define ELF32_R_INFO(sym, type) (((sym) << 8) + (unsigned char)(type))
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typedef struct {
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Elf64_Word r_offset; /* where to do it */
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Elf64_Word r_info; /* index & type of relocation */
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} Elf64_Rel;
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typedef struct {
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Elf64_Word r_offset; /* where to do it */
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Elf64_Word r_info; /* index & type of relocation */
|
||||
Elf64_Word r_addend; /* adjustment value */
|
||||
} Elf64_RelA;
|
||||
|
||||
/* r_info utility macros */
|
||||
#define ELF64_R_SYM(info) ((info) >> 32)
|
||||
#define ELF64_R_TYPE(info) ((info) & 0xffffffff)
|
||||
#define ELF64_R_INFO(sym,type) (((sym) << 32) + (type))
|
||||
|
||||
/*
|
||||
* Dynamic Section structure array
|
||||
*/
|
||||
typedef struct {
|
||||
Elf32_Sword d_tag; /* entry tag value */
|
||||
union {
|
||||
@ -404,6 +441,7 @@ typedef struct {
|
||||
} d_un;
|
||||
} Elf64_Dyn;
|
||||
|
||||
/* d_tag */
|
||||
#define DT_NULL 0 /* Marks end of dynamic array */
|
||||
#define DT_NEEDED 1 /* Name of needed library (DT_STRTAB offset) */
|
||||
#define DT_PLTRELSZ 2 /* Size, in bytes, of relocations in PLT */
|
||||
@ -428,8 +466,15 @@ typedef struct {
|
||||
#define DT_DEBUG 21 /* Used for debugging; unspecified */
|
||||
#define DT_TEXTREL 22 /* Relocations might modify non-writable seg */
|
||||
#define DT_JMPREL 23 /* Address of relocations associated with PLT */
|
||||
#define DT_NUM 24
|
||||
#define DT_BIND_NOW 24 /* Process all relocations at load-time */
|
||||
#define DT_INIT_ARRAY 25 /* Address of initialization function array */
|
||||
#define DT_FINI_ARRAY 26 /* Size, in bytes, of DT_INIT_ARRAY array */
|
||||
#define DT_INIT_ARRAYSZ 27 /* Address of termination function array */
|
||||
#define DT_FINI_ARRAYSZ 28 /* Size, in bytes, of DT_FINI_ARRAY array*/
|
||||
#define DT_NUM 29
|
||||
|
||||
#define DT_LOOS 0x60000000 /* Operating system specific range *
|
||||
#define DT_HIOS 0x6fffffff
|
||||
#define DT_LOPROC 0x70000000 /* Processor-specific range */
|
||||
#define DT_HIPROC 0x7fffffff
|
||||
|
||||
@ -446,6 +491,7 @@ typedef struct {
|
||||
Elf64_Word a_v; /* 64-bit id */
|
||||
} Aux64Info;
|
||||
|
||||
/* a_type */
|
||||
#define AT_NULL 0 /* Marks end of array */
|
||||
#define AT_IGNORE 1 /* No meaning, a_un is undefined */
|
||||
#define AT_EXECFD 2 /* Open file descriptor of object file */
|
||||
@ -486,7 +532,7 @@ typedef struct {
|
||||
#define AT_SUN_EXECNAME 2014
|
||||
|
||||
/*
|
||||
* Note Definitions
|
||||
* Note Headers
|
||||
*/
|
||||
typedef struct {
|
||||
Elf32_Word n_namesz;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user