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/*
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* ELF register definitions..
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*/
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#include <inttypes.h> |
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typedef uint32_t elf_greg_t;
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#define ELF_NGREG (sizeof (struct target_pt_regs) / sizeof(elf_greg_t)) |
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typedef elf_greg_t elf_gregset_t[ELF_NGREG];
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typedef struct user_i387_struct elf_fpregset_t; |
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/*
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* This is used to ensure we don't load something for the wrong architecture.
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*/
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#define elf_check_arch(x) ( ((x) == EM_386) || ((x) == EM_486) )
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/*
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* These are used to set parameters in the core dumps.
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*/
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#define ELF_CLASS ELFCLASS32
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#define ELF_DATA ELFDATA2LSB;
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#define ELF_ARCH EM_386
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/* SVR4/i386 ABI (pages 3-31, 3-32) says that when the program
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starts %edx contains a pointer to a function which might be
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registered using `atexit'. This provides a mean for the
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dynamic linker to call DT_FINI functions for shared libraries
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that have been loaded before the code runs.
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A value of 0 tells we have no such handler. */
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#define ELF_PLAT_INIT(_r) _r->edx = 0 |
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#define USE_ELF_CORE_DUMP
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#define ELF_EXEC_PAGESIZE 4096 |
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typedef uint32_t Elf32_Addr;
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typedef uint16_t Elf32_Half;
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typedef uint32_t Elf32_Off;
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typedef int32_t Elf32_Sword;
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typedef uint32_t Elf32_Word;
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/* These constants are for the segment types stored in the image headers */
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#define PT_NULL 0 |
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#define PT_LOAD 1 |
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#define PT_DYNAMIC 2 |
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#define PT_INTERP 3 |
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#define PT_NOTE 4 |
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#define PT_SHLIB 5 |
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#define PT_PHDR 6 |
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#define PT_LOPROC 0x70000000 |
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#define PT_HIPROC 0x7fffffff |
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/* These constants define the different elf file types */
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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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#define ET_LOPROC 5 |
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#define ET_HIPROC 6 |
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/* These constants define the various ELF target machines */
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#define EM_NONE 0 |
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#define EM_M32 1 |
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#define EM_SPARC 2 |
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#define EM_386 3 |
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#define EM_68K 4 |
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#define EM_88K 5 |
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#define EM_486 6 /* Perhaps disused */ |
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#define EM_860 7 |
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#define EM_MIPS 8 /* MIPS R3000 (officially, big-endian only) */ |
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#define EM_MIPS_RS4_BE 10 /* MIPS R4000 big-endian */ |
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#define EM_SPARC64 11 /* SPARC v9 (not official) 64-bit */ |
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#define EM_PARISC 15 /* HPPA */ |
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#define EM_SPARC32PLUS 18 /* Sun's "v8plus" */ |
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#define EM_PPC 20 /* PowerPC */ |
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/*
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* This is an interim value that we will use until the committee comes
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* up with a final number.
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*/
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#define EM_ALPHA 0x9026 |
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/* This is the info that is needed to parse the dynamic section of the file */
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#define DT_NULL 0 |
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#define DT_NEEDED 1 |
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#define DT_PLTRELSZ 2 |
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#define DT_PLTGOT 3 |
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#define DT_HASH 4 |
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#define DT_STRTAB 5 |
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#define DT_SYMTAB 6 |
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#define DT_RELA 7 |
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#define DT_RELASZ 8 |
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#define DT_RELAENT 9 |
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#define DT_STRSZ 10 |
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#define DT_SYMENT 11 |
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#define DT_INIT 12 |
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#define DT_FINI 13 |
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#define DT_SONAME 14 |
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#define DT_RPATH 15 |
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#define DT_SYMBOLIC 16 |
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#define DT_REL 17 |
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#define DT_RELSZ 18 |
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#define DT_RELENT 19 |
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#define DT_PLTREL 20 |
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#define DT_DEBUG 21 |
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#define DT_TEXTREL 22 |
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#define DT_JMPREL 23 |
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#define DT_LOPROC 0x70000000 |
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#define DT_HIPROC 0x7fffffff |
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/* This info is needed when parsing the symbol table */
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#define STB_LOCAL 0 |
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#define STB_GLOBAL 1 |
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#define STB_WEAK 2 |
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#define STT_NOTYPE 0 |
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#define STT_OBJECT 1 |
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#define STT_FUNC 2 |
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#define STT_SECTION 3 |
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#define STT_FILE 4 |
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#define ELF32_ST_BIND(x) ((x) >> 4) |
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#define ELF32_ST_TYPE(x) (((unsigned int) x) & 0xf) |
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/* Symbolic values for the entries in the auxiliary table
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put on the initial stack */
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#define AT_NULL 0 /* end of vector */ |
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#define AT_IGNORE 1 /* entry should be ignored */ |
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#define AT_EXECFD 2 /* file descriptor of program */ |
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#define AT_PHDR 3 /* program headers for program */ |
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#define AT_PHENT 4 /* size of program header entry */ |
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#define AT_PHNUM 5 /* number of program headers */ |
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#define AT_PAGESZ 6 /* system page size */ |
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#define AT_BASE 7 /* base address of interpreter */ |
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#define AT_FLAGS 8 /* flags */ |
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#define AT_ENTRY 9 /* entry point of program */ |
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#define AT_NOTELF 10 /* program is not ELF */ |
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#define AT_UID 11 /* real uid */ |
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#define AT_EUID 12 /* effective uid */ |
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#define AT_GID 13 /* real gid */ |
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#define AT_EGID 14 /* effective gid */ |
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typedef struct dynamic{ |
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Elf32_Sword d_tag; |
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union{
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Elf32_Sword d_val; |
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Elf32_Addr d_ptr; |
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} d_un; |
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} Elf32_Dyn; |
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typedef struct { |
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unsigned long long d_tag; /* entry tag value */ |
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union {
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unsigned long long d_val; |
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unsigned long long d_ptr; |
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} d_un; |
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} Elf64_Dyn; |
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/* The following are used with relocations */
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#define ELF32_R_SYM(x) ((x) >> 8) |
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#define ELF32_R_TYPE(x) ((x) & 0xff) |
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#define R_386_NONE 0 |
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#define R_386_32 1 |
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#define R_386_PC32 2 |
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#define R_386_GOT32 3 |
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#define R_386_PLT32 4 |
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#define R_386_COPY 5 |
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#define R_386_GLOB_DAT 6 |
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#define R_386_JMP_SLOT 7 |
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#define R_386_RELATIVE 8 |
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#define R_386_GOTOFF 9 |
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#define R_386_GOTPC 10 |
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#define R_386_NUM 11 |
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typedef struct elf32_rel { |
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Elf32_Addr r_offset; |
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Elf32_Word r_info; |
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} Elf32_Rel; |
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typedef struct elf64_rel { |
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unsigned long long r_offset; /* Location at which to apply the action */ |
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unsigned long long r_info; /* index and type of relocation */ |
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} Elf64_Rel; |
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typedef struct elf32_rela{ |
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Elf32_Addr r_offset; |
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Elf32_Word r_info; |
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Elf32_Sword r_addend; |
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} Elf32_Rela; |
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typedef struct elf64_rela { |
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unsigned long long r_offset; /* Location at which to apply the action */ |
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unsigned long long r_info; /* index and type of relocation */ |
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unsigned long long r_addend; /* Constant addend used to compute value */ |
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} Elf64_Rela; |
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typedef struct elf32_sym{ |
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Elf32_Word st_name; |
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Elf32_Addr st_value; |
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Elf32_Word st_size; |
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unsigned char st_info; |
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unsigned char st_other; |
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Elf32_Half st_shndx; |
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} Elf32_Sym; |
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typedef struct elf64_sym { |
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unsigned int st_name; /* Symbol name, index in string tbl */ |
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unsigned char st_info; /* Type and binding attributes */ |
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unsigned char st_other; /* No defined meaning, 0 */ |
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unsigned short st_shndx; /* Associated section index */ |
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unsigned long long st_value; /* Value of the symbol */ |
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unsigned long long st_size; /* Associated symbol size */ |
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} Elf64_Sym; |
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#define EI_NIDENT 16 |
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typedef struct elf32_hdr{ |
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unsigned char e_ident[EI_NIDENT]; |
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Elf32_Half e_type; |
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Elf32_Half e_machine; |
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Elf32_Word e_version; |
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Elf32_Addr e_entry; /* Entry point */
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Elf32_Off e_phoff; |
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Elf32_Off e_shoff; |
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Elf32_Word e_flags; |
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Elf32_Half e_ehsize; |
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Elf32_Half e_phentsize; |
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Elf32_Half e_phnum; |
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Elf32_Half e_shentsize; |
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Elf32_Half e_shnum; |
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Elf32_Half e_shstrndx; |
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} Elf32_Ehdr; |
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typedef struct elf64_hdr { |
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unsigned char e_ident[16]; /* ELF "magic number" */ |
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short int e_type; |
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short unsigned int e_machine; |
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int e_version;
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unsigned long long e_entry; /* Entry point virtual address */ |
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unsigned long long e_phoff; /* Program header table file offset */ |
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unsigned long long e_shoff; /* Section header table file offset */ |
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int e_flags;
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short int e_ehsize; |
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short int e_phentsize; |
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short int e_phnum; |
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short int e_shentsize; |
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short int e_shnum; |
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short int e_shstrndx; |
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} Elf64_Ehdr; |
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/* These constants define the permissions on sections in the program
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header, p_flags. */
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#define PF_R 0x4 |
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#define PF_W 0x2 |
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#define PF_X 0x1 |
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typedef struct elf32_phdr{ |
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Elf32_Word p_type; |
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Elf32_Off p_offset; |
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Elf32_Addr p_vaddr; |
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Elf32_Addr p_paddr; |
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Elf32_Word p_filesz; |
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Elf32_Word p_memsz; |
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Elf32_Word p_flags; |
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Elf32_Word p_align; |
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} Elf32_Phdr; |
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typedef struct elf64_phdr { |
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int p_type;
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int p_flags;
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unsigned long long p_offset; /* Segment file offset */ |
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unsigned long long p_vaddr; /* Segment virtual address */ |
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unsigned long long p_paddr; /* Segment physical address */ |
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unsigned long long p_filesz; /* Segment size in file */ |
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unsigned long long p_memsz; /* Segment size in memory */ |
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unsigned long long p_align; /* Segment alignment, file & memory */ |
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} Elf64_Phdr; |
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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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#define SHT_STRTAB 3 |
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#define SHT_RELA 4 |
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#define SHT_HASH 5 |
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#define SHT_DYNAMIC 6 |
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#define SHT_NOTE 7 |
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#define SHT_NOBITS 8 |
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#define SHT_REL 9 |
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#define SHT_SHLIB 10 |
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#define SHT_DYNSYM 11 |
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#define SHT_NUM 12 |
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#define SHT_LOPROC 0x70000000 |
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#define SHT_HIPROC 0x7fffffff |
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#define SHT_LOUSER 0x80000000 |
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#define SHT_HIUSER 0xffffffff |
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/* sh_flags */
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#define SHF_WRITE 0x1 |
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#define SHF_ALLOC 0x2 |
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#define SHF_EXECINSTR 0x4 |
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#define SHF_MASKPROC 0xf0000000 |
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/* special section indexes */
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#define SHN_UNDEF 0 |
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#define SHN_LORESERVE 0xff00 |
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#define SHN_LOPROC 0xff00 |
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#define SHN_HIPROC 0xff1f |
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#define SHN_ABS 0xfff1 |
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#define SHN_COMMON 0xfff2 |
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#define SHN_HIRESERVE 0xffff |
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typedef struct { |
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Elf32_Word sh_name; |
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Elf32_Word sh_type; |
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Elf32_Word sh_flags; |
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Elf32_Addr sh_addr; |
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Elf32_Off sh_offset; |
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Elf32_Word sh_size; |
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Elf32_Word sh_link; |
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Elf32_Word sh_info; |
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Elf32_Word sh_addralign; |
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Elf32_Word sh_entsize; |
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} Elf32_Shdr; |
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typedef struct elf64_shdr { |
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unsigned int sh_name; /* Section name, index in string tbl */ |
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unsigned int sh_type; /* Type of section */ |
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unsigned long long sh_flags; /* Miscellaneous section attributes */ |
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unsigned long long sh_addr; /* Section virtual addr at execution */ |
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unsigned long long sh_offset; /* Section file offset */ |
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unsigned long long sh_size; /* Size of section in bytes */ |
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unsigned int sh_link; /* Index of another section */ |
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unsigned int sh_info; /* Additional section information */ |
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unsigned long long sh_addralign; /* Section alignment */ |
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unsigned long long sh_entsize; /* Entry size if section holds table */ |
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} Elf64_Shdr; |
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#define EI_MAG0 0 /* e_ident[] indexes */ |
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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_PAD 7 |
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#define ELFMAG0 0x7f /* EI_MAG */ |
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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 ELFCLASSNONE 0 /* EI_CLASS */ |
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#define ELFCLASS32 1 |
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#define ELFCLASS64 2 |
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#define ELFCLASSNUM 3 |
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#define ELFDATANONE 0 /* e_ident[EI_DATA] */ |
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#define ELFDATA2LSB 1 |
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#define ELFDATA2MSB 2 |
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#define EV_NONE 0 /* e_version, EI_VERSION */ |
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#define EV_CURRENT 1 |
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#define EV_NUM 2 |
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/* Notes used in ET_CORE */
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#define NT_PRSTATUS 1 |
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#define NT_PRFPREG 2 |
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#define NT_PRPSINFO 3 |
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#define NT_TASKSTRUCT 4 |
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/* Note header in a PT_NOTE section */
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typedef struct elf32_note { |
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Elf32_Word n_namesz; /* Name size */
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Elf32_Word n_descsz; /* Content size */
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Elf32_Word n_type; /* Content type */
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} Elf32_Nhdr; |
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/* Note header in a PT_NOTE section */
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/*
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* For now we use the 32 bit version of the structure until we figure
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* out whether we need anything better. Note - on the Alpha, "unsigned int"
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* is only 32 bits.
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*/
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typedef struct elf64_note { |
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unsigned int n_namesz; /* Name size */ |
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unsigned int n_descsz; /* Content size */ |
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unsigned int n_type; /* Content type */ |
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} Elf64_Nhdr; |
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#define ELF_START_MMAP 0x80000000 |
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#if ELF_CLASS == ELFCLASS32
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extern Elf32_Dyn _DYNAMIC [];
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#define elfhdr elf32_hdr
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#define elf_phdr elf32_phdr
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#define elf_note elf32_note
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#else
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extern Elf64_Dyn _DYNAMIC [];
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#define elfhdr elf64_hdr
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#define elf_phdr elf64_phdr
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#define elf_note elf64_note
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#endif
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