ELF文件格式学习，section修复
来源：互联网 发布：js作用域链 编辑：程序博客网 时间：2024/05/15 08:38
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小弟学习Android逆向也有一段时间，翻看大神们的帖子收获了不少，开始对ELF、so文件很感兴趣，尤其对内存dump和修复的技术很好奇，看了ThomasKing的ELF section修复的帖子更是深受启发，链接：http://www.52pojie.cn/thread-294642-1-1.html，通过帖子中给出的修复思路，再配合一篇关于ELF文件结构解析的文章让小弟完整立体的了解ELF的文件结构和加载运行等机制，出于好奇想知道这个SECTION的修复具体的实现，但是大神没有给出源码，在网上搜索也没有人在这方面提供资料，因此就决定通过这篇帖子给出的思路，自己实现一个section修复工具，顺便也学习一下elf文件
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其实TomasKing大大的帖子中已经把思路都写得很清楚了，但在实现时确实有一些坑，小弟当时天真的认为shstrtab这个section会在dump下的文件中找到，结果发现根本没有，这里需要自己写一个shstrtab然后添加在section header 尾部，这一点可能是我最大的收获了，还有一个问题就是大神说道”通过__global_offset_table 偏移 + 4 * (rel.plt.size) / sizeof(Elf32_Rel)(这里还需要添加2个int的填充位置)得到got的末尾“ 实际是添加了3个int的填充位，这里不知道大神写错了还是程序之间的差异。下面就给我源码吧 代码比较挫看的时候大家忍一忍 有不对的地方请大家斧正
#define _CRT_SECURE_NO_WARNINGS#include "fix.h" char* str = "..dynsym..dynstr..hash..rel.dyn..rel.plt..text..ARM.extab..ARM.exidx..fini_array..init_array..dynamic..got..data..bass..shstrtab\0";char* str1 = "..dynsym\0.dynstr\0.hash\0.rel.dyn\0.rel.plt\0.text\0.ARM.extab\0.ARM.exidx\0.fini_array\0.init_array\0.dynamic\0.got\0.data\0.bass\0.shstrtab\0";Elf32_Shdr shdr[SHDRS] = { 0 }; void get_elf_header(char* buffer,Elf32_Ehdr** pehdr){ int header_len = sizeof(Elf32_Ehdr); memset(*pehdr, 0, header_len); memcpy(*pehdr, (void*)buffer, header_len);} void get_program_table(Elf32_Ehdr ehdr,char* buffer,Elf32_Phdr** pphdr){ int ph_size = ehdr.e_phentsize; int ph_num = ehdr.e_phnum; memset(*pphdr, 0, ph_size * ph_num); memcpy(*pphdr, buffer + ehdr.e_phoff,ph_size * ph_num);} long get_file_len(FILE* p){ fseek (p, 0, SEEK_END); long fsize = ftell (p); rewind (p); return fsize; } void get_Info(Elf32_Phdr* phdr, Elf32_Ehdr *pehdr, char* buffer, char** sh_buffer, int sh_len){ Elf32_Dyn* dyn = NULL; Elf32_Dyn* d = NULL; Elf32_Phdr load = { 0 }; int ph_num = pehdr->e_phnum; int dyn_size = 0, dyn_off = 0; int nbucket = 0, nchain = 0; int flag = 0, i = 0; memset(*sh_buffer, 0, sh_len); i = 0; for(;i < ph_num;i++) { if (phdr[i].p_type == PT_LOAD) { if (phdr[i].p_vaddr > 0x0) { load = phdr[i]; shdr[BSS].sh_name = strstr(str,".bss") - str; shdr[BSS].sh_type = SHT_NOBITS; shdr[BSS].sh_flags = SHF_WRITE | SHF_ALLOC; shdr[BSS].sh_addr = phdr[i].p_vaddr + phdr[i].p_filesz; shdr[BSS].sh_offset = shdr[BSS].sh_addr - 0x1000; shdr[BSS].sh_addralign = 1; continue; } } if(phdr[i].p_type == PT_DYNAMIC) { shdr[DYNAMIC].sh_name = strstr(str, ".dynamic") - str; shdr[DYNAMIC].sh_type = SHT_DYNAMIC; shdr[DYNAMIC].sh_flags = SHF_WRITE | SHF_ALLOC; shdr[DYNAMIC].sh_addr = phdr[i].p_vaddr; shdr[DYNAMIC].sh_offset = phdr[i].p_offset; shdr[DYNAMIC].sh_size = phdr[i].p_filesz; shdr[DYNAMIC].sh_link = 2; shdr[DYNAMIC].sh_info = 0; shdr[DYNAMIC].sh_addralign = 4; shdr[DYNAMIC].sh_entsize = 8; dyn_size = phdr[i].p_filesz; dyn_off = phdr[i].p_offset; continue; } if(phdr[i].p_type == PT_LOPROC || phdr[i].p_type == PT_LOPROC + 1) { shdr[ARMEXIDX].sh_name = strstr(str, ".ARM.exidx") - str; shdr[ARMEXIDX].sh_type = SHT_LOPROC; shdr[ARMEXIDX].sh_flags = SHF_ALLOC; shdr[ARMEXIDX].sh_addr = phdr[i].p_vaddr; shdr[ARMEXIDX].sh_offset = phdr[i].p_offset; shdr[ARMEXIDX].sh_size = phdr[i].p_filesz; shdr[ARMEXIDX].sh_link = 7; shdr[ARMEXIDX].sh_info = 0; shdr[ARMEXIDX].sh_addralign = 4; shdr[ARMEXIDX].sh_entsize = 8; continue; } } dyn = (Elf32_Dyn*)malloc(dyn_size); memcpy(dyn,buffer+dyn_off,dyn_size); i = 0; for (; i < dyn_size / sizeof(Elf32_Dyn); i++) { switch (dyn[i].d_tag) { case DT_SYMTAB: shdr[DYNSYM].sh_name = strstr(str, ".dynsym") - str; shdr[DYNSYM].sh_type = SHT_DYNSYM; shdr[DYNSYM].sh_flags = SHF_ALLOC; shdr[DYNSYM].sh_addr = dyn[i].d_un.d_ptr; shdr[DYNSYM].sh_offset = dyn[i].d_un.d_ptr; shdr[DYNSYM].sh_link = 2; shdr[DYNSYM].sh_info = 1; shdr[DYNSYM].sh_addralign = 4; shdr[DYNSYM].sh_entsize = 16; break; case DT_STRTAB: shdr[DYNSTR].sh_name = strstr(str, ".dynstr") - str; shdr[DYNSTR].sh_type = SHT_STRTAB; shdr[DYNSTR].sh_flags = SHF_ALLOC; shdr[DYNSTR].sh_offset = dyn[i].d_un.d_ptr; shdr[DYNSTR].sh_addr = dyn[i].d_un.d_ptr; shdr[DYNSTR].sh_addralign = 1; shdr[DYNSTR].sh_entsize = 0; break; case DT_HASH: shdr[HASH].sh_name = strstr(str, ".hash") - str; shdr[HASH].sh_type = SHT_HASH; shdr[HASH].sh_flags = SHF_ALLOC; shdr[HASH].sh_addr = dyn[i].d_un.d_ptr; shdr[HASH].sh_offset = dyn[i].d_un.d_ptr; memcpy(&nbucket, buffer + shdr[HASH].sh_offset, 4); memcpy(&nchain, buffer + shdr[HASH].sh_offset + 4, 4); shdr[HASH].sh_size = (nbucket + nchain + 2) * sizeof(int); shdr[HASH].sh_link = 4; shdr[HASH].sh_info = 1; shdr[HASH].sh_addralign = 4; shdr[HASH].sh_entsize = 4; break; case DT_REL: shdr[RELDYN].sh_name = strstr(str, ".rel.dyn") - str; shdr[RELDYN].sh_type = SHT_REL; shdr[RELDYN].sh_flags = SHF_ALLOC; shdr[RELDYN].sh_addr = dyn[i].d_un.d_ptr; shdr[RELDYN].sh_offset = dyn[i].d_un.d_ptr; shdr[RELDYN].sh_link = 4; shdr[RELDYN].sh_info = 0; shdr[RELDYN].sh_addralign = 4; shdr[RELDYN].sh_entsize = 8; break; case DT_JMPREL: shdr[RELPLT].sh_name = strstr(str, ".rel.plt") - str; shdr[RELPLT].sh_type = SHT_PROGBITS; shdr[RELPLT].sh_flags = SHF_ALLOC; shdr[RELPLT].sh_addr = dyn[i].d_un.d_ptr; shdr[RELPLT].sh_offset = dyn[i].d_un.d_ptr; shdr[RELPLT].sh_link = 1; shdr[RELPLT].sh_info = 6; shdr[RELPLT].sh_addralign = 4; shdr[RELPLT].sh_entsize = 8; break; case DT_PLTRELSZ: shdr[RELPLT].sh_size = dyn[i].d_un.d_val; break; case DT_FINI: shdr[FINIARRAY].sh_name = strstr(str, ".fini_array") - str; shdr[FINIARRAY].sh_type = 15; shdr[FINIARRAY].sh_flags = SHF_WRITE | SHF_ALLOC; shdr[FINIARRAY].sh_offset = dyn[i].d_un.d_ptr - 0x1000; shdr[FINIARRAY].sh_addr = dyn[i].d_un.d_ptr; shdr[FINIARRAY].sh_addralign = 4; shdr[FINIARRAY].sh_entsize = 0; break; case DT_INIT: shdr[INITARRAY].sh_name = strstr(str, ".init_array") - str; shdr[INITARRAY].sh_type = 14; shdr[INITARRAY].sh_flags = SHF_WRITE | SHF_ALLOC; shdr[INITARRAY].sh_offset = dyn[i].d_un.d_ptr - 0x1000; shdr[INITARRAY].sh_addr = dyn[i].d_un.d_ptr; shdr[INITARRAY].sh_addralign = 4; shdr[INITARRAY].sh_entsize = 0; break; case DT_RELSZ: shdr[RELDYN].sh_size = dyn[i].d_un.d_val; break; case DT_STRSZ: shdr[DYNSTR].sh_size = dyn[i].d_un.d_val; break; case DT_PLTGOT: shdr[GOT].sh_name = strstr(str, ".got") - str; shdr[GOT].sh_type = SHT_PROGBITS; shdr[GOT].sh_flags = SHF_WRITE | SHF_ALLOC; shdr[GOT].sh_addr = shdr[DYNAMIC].sh_addr + shdr[DYNAMIC].sh_size; shdr[GOT].sh_offset = shdr[GOT].sh_addr - 0x1000; shdr[GOT].sh_size = dyn[i].d_un.d_ptr; shdr[GOT].sh_addralign = 4; break; } } shdr[GOT].sh_size = shdr[GOT].sh_size + 4 * (shdr[RELPLT].sh_size) / sizeof(Elf32_Rel) + 3 * sizeof(int) - shdr[GOT].sh_addr; //STRTAB地址 - SYMTAB地址 = SYMTAB大小 shdr[DYNSYM].sh_size = shdr[DYNSTR].sh_addr - shdr[DYNSYM].sh_addr; shdr[FINIARRAY].sh_size = shdr[INITARRAY].sh_addr - shdr[FINIARRAY].sh_addr; shdr[INITARRAY].sh_size = shdr[DYNAMIC].sh_addr - shdr[INITARRAY].sh_addr; shdr[PLT].sh_name = strstr(str, ".plt") - str; shdr[PLT].sh_type = SHT_PROGBITS; shdr[PLT].sh_flags = SHF_ALLOC | SHF_EXECINSTR; shdr[PLT].sh_addr = shdr[RELPLT].sh_addr + shdr[RELPLT].sh_size; shdr[PLT].sh_offset = shdr[PLT].sh_addr; shdr[PLT].sh_size = (20 + 12 * (shdr[RELPLT].sh_size) / sizeof(Elf32_Rel)); shdr[PLT].sh_addralign = 4; shdr[TEXT].sh_name = strstr(str, ".text") - str; shdr[TEXT].sh_type = SHT_PROGBITS; shdr[TEXT].sh_flags = SHF_ALLOC | SHF_EXECINSTR; shdr[TEXT].sh_addr = shdr[PLT].sh_addr + shdr[PLT].sh_size; shdr[TEXT].sh_offset = shdr[TEXT].sh_addr; shdr[TEXT].sh_size = shdr[ARMEXIDX].sh_addr - shdr[TEXT].sh_addr; shdr[DATA].sh_name = strstr(str, ".data") - str; shdr[DATA].sh_type = SHT_PROGBITS; shdr[DATA].sh_flags = SHF_WRITE | SHF_ALLOC; shdr[DATA].sh_addr = shdr[GOT].sh_addr + shdr[GOT].sh_size; shdr[DATA].sh_offset = shdr[DATA].sh_addr - 0x1000; shdr[DATA].sh_size = load.p_vaddr + load.p_filesz - shdr[DATA].sh_addr; shdr[DATA].sh_addralign = 4; shdr[STRTAB].sh_name = strstr(str, ".shstrtab") - str; shdr[STRTAB].sh_type = SHT_STRTAB; shdr[STRTAB].sh_flags = SHT_NULL; shdr[STRTAB].sh_addr = 0; shdr[STRTAB].sh_offset = shdr[BSS].sh_addr - 0x1000; shdr[STRTAB].sh_size = strlen(str) + 1; shdr[STRTAB].sh_addralign = 1; //memcpy(buffer + shdr[STRTAB].sh_offset, str, strlen(str)); memcpy(*sh_buffer,shdr,sizeof(shdr)); } int main(int argc, char const *argv[]){ FILE* fr = NULL; long flen = 0; FILE* fw = NULL; int ph_len = 0; char* buffer = NULL; char* sh_buffer = NULL; Elf32_Ehdr *pehdr = NULL; Elf32_Phdr* pphdr = NULL; char arr[2048] = { 0 }; if (argc < 2) { printf("less args\n"); return; } fr = fopen(argv[1],"rb"); if(fr == NULL) { printf("Open failed: \n"); goto error; } flen = get_file_len(fr); buffer = (char*)malloc(sizeof(char)*flen); if (buffer == NULL) { printf("Malloc error\n"); goto error; } size_t result = fread (buffer,1,flen,fr); if (result != flen) { printf("Reading error\n"); goto error; } fw = fopen("fix.so","wb"); if(fw == NULL) { printf("Open failed: fix.so\n"); goto error; } pehdr = (Elf32_Ehdr*)malloc(sizeof(Elf32_Ehdr)); get_elf_header(buffer,&pehdr); ph_len = pehdr->e_phentsize * pehdr->e_phnum; pphdr = (Elf32_Phdr*)malloc(ph_len); get_program_table(*pehdr,buffer,&pphdr); sh_buffer = (char* )malloc(pehdr->e_shentsize * pehdr->e_shnum); get_Info(pphdr, pehdr, buffer, &sh_buffer, pehdr->e_shentsize * pehdr->e_shnum); memcpy(buffer + pehdr->e_shoff,sh_buffer,pehdr->e_shentsize * pehdr->e_shnum); pehdr->e_shnum = SHDRS; pehdr->e_shstrndx = SHDRS - 1; memcpy(buffer, pehdr, sizeof(Elf32_Ehdr)); memcpy(buffer + shdr[STRTAB].sh_offset, str1, strlen(str) + 1); fwrite(buffer,sizeof(char)*flen,1,fw); error: if(fw != NULL) fclose(fw); if(fr != NULL) fclose(fr); if(buffer != NULL) free(buffer); return 0;}#include <stdio.h>#include <stdlib.h>#include <string.h>#include "elf.h" #define SHDRS 16/*.dynsym .dynstr .hash .rel.dyn .rel.plt.plt .text .ARM.extab .ARM.exidx .fini_array .init_array .dynamic .got .data*/#define NONE 0#define DYNSYM 1#define DYNSTR 2#define HASH 3#define RELDYN 4#define RELPLT 5#define PLT 6#define TEXT 7#define ARMEXIDX 8#define FINIARRAY 9#define INITARRAY 10#define DYNAMIC 11#define GOT 12#define DATA 13#define BSS 14#define STRTAB 15//
#ifndef _QEMU_ELF_H#define _QEMU_ELF_H#include <inttypes.h>/* 32-bit ELF base types. */typedef uint32_t Elf32_Addr;typedef uint16_t Elf32_Half;typedef uint32_t Elf32_Off;typedef int32_t Elf32_Sword;typedef uint32_t Elf32_Word;/* 64-bit ELF base types. */typedef uint64_t Elf64_Addr;typedef uint16_t Elf64_Half;typedef int16_t Elf64_SHalf;typedef uint64_t Elf64_Off;typedef int32_t Elf64_Sword;typedef uint32_t Elf64_Word;typedef uint64_t Elf64_Xword;typedef int64_t Elf64_Sxword;/* These constants are for the segment types stored in the image headers */#define PT_NULL 0#define PT_LOAD 1#define PT_DYNAMIC 2#define PT_INTERP 3#define PT_NOTE 4#define PT_SHLIB 5#define PT_PHDR 6#define PT_LOPROC 0x70000000#define PT_HIPROC 0x7fffffff#define PT_MIPS_REGINFO 0x70000000#define PT_MIPS_OPTIONS 0x70000001/* Flags in the e_flags field of the header *//* MIPS architecture level. */#define EF_MIPS_ARCH_1 0x00000000 /* -mips1 code. */#define EF_MIPS_ARCH_2 0x10000000 /* -mips2 code. */#define EF_MIPS_ARCH_3 0x20000000 /* -mips3 code. */#define EF_MIPS_ARCH_4 0x30000000 /* -mips4 code. */#define EF_MIPS_ARCH_5 0x40000000 /* -mips5 code. */#define EF_MIPS_ARCH_32 0x50000000 /* MIPS32 code. */#define EF_MIPS_ARCH_64 0x60000000 /* MIPS64 code. *//* The ABI of a file. */#define EF_MIPS_ABI_O32 0x00001000 /* O32 ABI. */#define EF_MIPS_ABI_O64 0x00002000 /* O32 extended for 64 bit. */#define EF_MIPS_NOREORDER 0x00000001#define EF_MIPS_PIC 0x00000002#define EF_MIPS_CPIC 0x00000004#define EF_MIPS_ABI2 0x00000020#define EF_MIPS_OPTIONS_FIRST 0x00000080#define EF_MIPS_32BITMODE 0x00000100#define EF_MIPS_ABI 0x0000f000#define EF_MIPS_ARCH 0xf0000000/* These constants define the different elf file types */#define ET_NONE 0#define ET_REL 1#define ET_EXEC 2#define ET_DYN 3#define ET_CORE 4#define ET_LOPROC 0xff00#define ET_HIPROC 0xffff/* These constants define the various ELF target machines */#define EM_NONE 0#define EM_M32 1#define EM_SPARC 2#define EM_386 3#define EM_68K 4#define EM_88K 5#define EM_486 6 /* Perhaps disused */#define EM_860 7#define EM_MIPS 8 /* MIPS R3000 (officially, big-endian only) */#define EM_MIPS_RS4_BE 10 /* MIPS R4000 big-endian */#define EM_PARISC 15 /* HPPA */#define EM_SPARC32PLUS 18 /* Sun's "v8plus" */#define EM_PPC 20 /* PowerPC */#define EM_PPC64 21 /* PowerPC64 */#define EM_ARM 40 /* ARM */#define EM_SH 42 /* SuperH */#define EM_SPARCV9 43 /* SPARC v9 64-bit */#define EM_IA_64 50 /* HP/Intel IA-64 */#define EM_X86_64 62 /* AMD x86-64 */#define EM_S390 22 /* IBM S/390 */#define EM_CRIS 76 /* Axis Communications 32-bit embedded processor */#define EM_V850 87 /* NEC v850 */#define EM_H8_300H 47 /* Hitachi H8/300H */#define EM_H8S 48 /* Hitachi H8S *//* * This is an interim value that we will use until the committee comes * up with a final number. */#define EM_ALPHA 0x9026/* Bogus old v850 magic number, used by old tools. */#define EM_CYGNUS_V850 0x9080/* * This is the old interim value for S/390 architecture */#define EM_S390_OLD 0xA390/* This is the info that is needed to parse the dynamic section of the file */#define DT_NULL 0#define DT_NEEDED 1#define DT_PLTRELSZ 2#define DT_PLTGOT 3#define DT_HASH 4#define DT_STRTAB 5#define DT_SYMTAB 6#define DT_RELA 7#define DT_RELASZ 8#define DT_RELAENT 9#define DT_STRSZ 10#define DT_SYMENT 11#define DT_INIT 25#define DT_FINI 26#define DT_SONAME 14#define DT_RPATH 15#define DT_SYMBOLIC 16#define DT_REL 17#define DT_RELSZ 18#define DT_RELENT 19#define DT_PLTREL 20#define DT_DEBUG 21#define DT_TEXTREL 22#define DT_JMPREL 23#define DT_LOPROC 0x70000000#define DT_HIPROC 0x7fffffff#define DT_MIPS_RLD_VERSION 0x70000001#define DT_MIPS_TIME_STAMP 0x70000002#define DT_MIPS_ICHECKSUM 0x70000003#define DT_MIPS_IVERSION 0x70000004#define DT_MIPS_FLAGS 0x70000005#define RHF_NONE 0#define RHF_HARDWAY 1#define RHF_NOTPOT 2#define DT_MIPS_BASE_ADDRESS 0x70000006#define DT_MIPS_CONFLICT 0x70000008#define DT_MIPS_LIBLIST 0x70000009#define DT_MIPS_LOCAL_GOTNO 0x7000000a#define DT_MIPS_CONFLICTNO 0x7000000b#define DT_MIPS_LIBLISTNO 0x70000010#define DT_MIPS_SYMTABNO 0x70000011#define DT_MIPS_UNREFEXTNO 0x70000012#define DT_MIPS_GOTSYM 0x70000013#define DT_MIPS_HIPAGENO 0x70000014#define DT_MIPS_RLD_MAP 0x70000016/* This info is needed when parsing the symbol table */#define STB_LOCAL 0#define STB_GLOBAL 1#define STB_WEAK 2#define STT_NOTYPE 0#define STT_OBJECT 1#define STT_FUNC 2#define STT_SECTION 3#define STT_FILE 4#define ELF_ST_BIND(x) ((x) >> 4)#define ELF_ST_TYPE(x) (((unsigned int) x) & 0xf)#define ELF32_ST_BIND(x) ELF_ST_BIND(x)#define ELF32_ST_TYPE(x) ELF_ST_TYPE(x)#define ELF64_ST_BIND(x) ELF_ST_BIND(x)#define ELF64_ST_TYPE(x) ELF_ST_TYPE(x)/* Symbolic values for the entries in the auxiliary table put on the initial stack */#define AT_NULL 0 /* end of vector */#define AT_IGNORE 1 /* entry should be ignored */#define AT_EXECFD 2 /* file descriptor of program */#define AT_PHDR 3 /* program headers for program */#define AT_PHENT 4 /* size of program header entry */#define AT_PHNUM 5 /* number of program headers */#define AT_PAGESZ 6 /* system page size */#define AT_BASE 7 /* base address of interpreter */#define AT_FLAGS 8 /* flags */#define AT_ENTRY 9 /* entry point of program */#define AT_NOTELF 10 /* program is not ELF */#define AT_UID 11 /* real uid */#define AT_EUID 12 /* effective uid */#define AT_GID 13 /* real gid */#define AT_EGID 14 /* effective gid */#define AT_PLATFORM 15 /* string identifying CPU for optimizations */#define AT_HWCAP 16 /* arch dependent hints at CPU capabilities */#define AT_CLKTCK 17 /* frequency at which times() increments */typedef struct dynamic{ Elf32_Sword d_tag; union{ Elf32_Sword d_val; Elf32_Addr d_ptr; } d_un;} Elf32_Dyn;typedef struct { Elf64_Sxword d_tag; /* entry tag value */ union { Elf64_Xword d_val; Elf64_Addr d_ptr; } d_un;} Elf64_Dyn;/* The following are used with relocations */#define ELF32_R_SYM(x) ((x) >> 8)#define ELF32_R_TYPE(x) ((x) & 0xff)#define ELF64_R_SYM(i) ((i) >> 32)#define ELF64_R_TYPE(i) ((i) & 0xffffffff)#define ELF64_R_TYPE_DATA(i) (((ELF64_R_TYPE(i) >> 8) ^ 0x00800000) - 0x00800000)#define R_386_NONE 0#define R_386_32 1#define R_386_PC32 2#define R_386_GOT32 3#define R_386_PLT32 4#define R_386_COPY 5#define R_386_GLOB_DAT 6#define R_386_JMP_SLOT 7#define R_386_RELATIVE 8#define R_386_GOTOFF 9#define R_386_GOTPC 10#define R_386_NUM 11#define R_MIPS_NONE 0#define R_MIPS_16 1#define R_MIPS_32 2#define R_MIPS_REL32 3#define R_MIPS_26 4#define R_MIPS_HI16 5#define R_MIPS_LO16 6#define R_MIPS_GPREL16 7#define R_MIPS_LITERAL 8#define R_MIPS_GOT16 9#define R_MIPS_PC16 10#define R_MIPS_CALL16 11#define R_MIPS_GPREL32 12/* The remaining relocs are defined on Irix, although they are not in the MIPS ELF ABI. */#define R_MIPS_UNUSED1 13#define R_MIPS_UNUSED2 14#define R_MIPS_UNUSED3 15#define R_MIPS_SHIFT5 16#define R_MIPS_SHIFT6 17#define R_MIPS_64 18#define R_MIPS_GOT_DISP 19#define R_MIPS_GOT_PAGE 20#define R_MIPS_GOT_OFST 21/* * The following two relocation types are specified in the MIPS ABI * conformance guide version 1.2 but not yet in the psABI. */#define R_MIPS_GOTHI16 22#define R_MIPS_GOTLO16 23#define R_MIPS_SUB 24#define R_MIPS_INSERT_A 25#define R_MIPS_INSERT_B 26#define R_MIPS_DELETE 27#define R_MIPS_HIGHER 28#define R_MIPS_HIGHEST 29/* * The following two relocation types are specified in the MIPS ABI * conformance guide version 1.2 but not yet in the psABI. */#define R_MIPS_CALLHI16 30#define R_MIPS_CALLLO16 31/* * This range is reserved for vendor specific relocations. */#define R_MIPS_LOVENDOR 100#define R_MIPS_HIVENDOR 127/* * Sparc ELF relocation types */#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_WDISP16 40#define R_SPARC_WDISP19 41#define R_SPARC_7 43#define R_SPARC_5 44#define R_SPARC_6 45/* Bits present in AT_HWCAP, primarily for Sparc32. */#define HWCAP_SPARC_FLUSH 1 /* CPU supports flush instruction. */#define HWCAP_SPARC_STBAR 2#define HWCAP_SPARC_SWAP 4#define HWCAP_SPARC_MULDIV 8#define HWCAP_SPARC_V9 16#define HWCAP_SPARC_ULTRA3 32/* * 68k ELF relocation types */#define R_68K_NONE 0#define R_68K_32 1#define R_68K_16 2#define R_68K_8 3#define R_68K_PC32 4#define R_68K_PC16 5#define R_68K_PC8 6#define R_68K_GOT32 7#define R_68K_GOT16 8#define R_68K_GOT8 9#define R_68K_GOT32O 10#define R_68K_GOT16O 11#define R_68K_GOT8O 12#define R_68K_PLT32 13#define R_68K_PLT16 14#define R_68K_PLT8 15#define R_68K_PLT32O 16#define R_68K_PLT16O 17#define R_68K_PLT8O 18#define R_68K_COPY 19#define R_68K_GLOB_DAT 20#define R_68K_JMP_SLOT 21#define R_68K_RELATIVE 22/* * Alpha ELF 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_GPRELHIGH 17 /* GP relative 32 bit, high 16 bits */#define R_ALPHA_GPRELLOW 18 /* GP relative 32 bit, low 16 bits */#define R_ALPHA_GPREL16 19 /* GP relative 16 bit */#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_BRSGP 28#define R_ALPHA_TLSGD 29#define R_ALPHA_TLS_LDM 30#define R_ALPHA_DTPMOD64 31#define R_ALPHA_GOTDTPREL 32#define R_ALPHA_DTPREL64 33#define R_ALPHA_DTPRELHI 34#define R_ALPHA_DTPRELLO 35#define R_ALPHA_DTPREL16 36#define R_ALPHA_GOTTPREL 37#define R_ALPHA_TPREL64 38#define R_ALPHA_TPRELHI 39#define R_ALPHA_TPRELLO 40#define R_ALPHA_TPREL16 41#define SHF_ALPHA_GPREL 0x10000000/* PowerPC relocations defined by the ABIs */#define R_PPC_NONE 0#define R_PPC_ADDR32 1 /* 32bit absolute address */#define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored. */#define R_PPC_ADDR16 3 /* 16bit absolute address */#define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute address */#define R_PPC_ADDR16_HI 5 /* high 16bit of absolute address */#define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */#define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */#define R_PPC_ADDR14_BRTAKEN 8#define R_PPC_ADDR14_BRNTAKEN 9#define R_PPC_REL24 10 /* PC relative 26 bit */#define R_PPC_REL14 11 /* PC relative 16 bit */#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/* Keep this the last entry. */#define R_PPC_NUM 37/* ARM specific declarations *//* Processor specific flags for the ELF header e_flags field. */#define EF_ARM_RELEXEC 0x01#define EF_ARM_HASENTRY 0x02#define EF_ARM_INTERWORK 0x04#define EF_ARM_APCS_26 0x08#define EF_ARM_APCS_FLOAT 0x10#define EF_ARM_PIC 0x20#define EF_ALIGN8 0x40 /* 8-bit structure alignment is in use */#define EF_NEW_ABI 0x80#define EF_OLD_ABI 0x100/* Additional symbol types for Thumb */#define STT_ARM_TFUNC 0xd/* ARM-specific values for sh_flags */#define SHF_ARM_ENTRYSECT 0x10000000 /* Section contains an entry point */#define SHF_ARM_COMDEF 0x80000000 /* Section may be multiply defined in the input to a link step *//* ARM-specific program header flags */#define PF_ARM_SB 0x10000000 /* Segment contains the location addressed by the static base *//* ARM relocs. */#define R_ARM_NONE 0 /* No reloc */#define R_ARM_PC24 1 /* PC relative 26 bit branch */#define R_ARM_ABS32 2 /* Direct 32 bit */#define R_ARM_REL32 3 /* PC relative 32 bit */#define R_ARM_PC13 4#define R_ARM_ABS16 5 /* Direct 16 bit */#define R_ARM_ABS12 6 /* Direct 12 bit */#define R_ARM_THM_ABS5 7#define R_ARM_ABS8 8 /* Direct 8 bit */#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 symbol at runtime */#define R_ARM_GLOB_DAT 21 /* Create GOT entry */#define R_ARM_JUMP_SLOT 22 /* Create PLT entry */#define R_ARM_RELATIVE 23 /* Adjust by program base */#define R_ARM_GOTOFF 24 /* 32 bit offset to GOT */#define R_ARM_GOTPC 25 /* 32 bit PC relative offset to GOT */#define R_ARM_GOT32 26 /* 32 bit GOT entry */#define R_ARM_PLT32 27 /* 32 bit PLT address */#define R_ARM_CALL 28#define R_ARM_JUMP24 29#define R_ARM_GNU_VTENTRY 100#define R_ARM_GNU_VTINHERIT 101#define R_ARM_THM_PC11 102 /* thumb unconditional branch */#define R_ARM_THM_PC9 103 /* thumb conditional branch */#define R_ARM_RXPC25 249#define R_ARM_RSBREL32 250#define R_ARM_THM_RPC22 251#define R_ARM_RREL32 252#define R_ARM_RABS22 253#define R_ARM_RPC24 254#define R_ARM_RBASE 255/* Keep this the last entry. */#define R_ARM_NUM 256/* s390 relocations defined by the ABIs */#define R_390_NONE 0 /* No reloc. */#define R_390_8 1 /* Direct 8 bit. */#define R_390_12 2 /* Direct 12 bit. */#define R_390_16 3 /* Direct 16 bit. */#define R_390_32 4 /* Direct 32 bit. */#define R_390_PC32 5 /* PC relative 32 bit. */#define R_390_GOT12 6 /* 12 bit GOT offset. */#define R_390_GOT32 7 /* 32 bit GOT offset. */#define R_390_PLT32 8 /* 32 bit PC relative PLT address. */#define R_390_COPY 9 /* Copy symbol at runtime. */#define R_390_GLOB_DAT 10 /* Create GOT entry. */#define R_390_JMP_SLOT 11 /* Create PLT entry. */#define R_390_RELATIVE 12 /* Adjust by program base. */#define R_390_GOTOFF32 13 /* 32 bit offset to GOT. */#define R_390_GOTPC 14 /* 32 bit PC rel. offset to GOT. */#define R_390_GOT16 15 /* 16 bit GOT offset. */#define R_390_PC16 16 /* PC relative 16 bit. */#define R_390_PC16DBL 17 /* PC relative 16 bit shifted by 1. */#define R_390_PLT16DBL 18 /* 16 bit PC rel. PLT shifted by 1. */#define R_390_PC32DBL 19 /* PC relative 32 bit shifted by 1. */#define R_390_PLT32DBL 20 /* 32 bit PC rel. PLT shifted by 1. */#define R_390_GOTPCDBL 21 /* 32 bit PC rel. GOT shifted by 1. */#define R_390_64 22 /* Direct 64 bit. */#define R_390_PC64 23 /* PC relative 64 bit. */#define R_390_GOT64 24 /* 64 bit GOT offset. */#define R_390_PLT64 25 /* 64 bit PC relative PLT address. */#define R_390_GOTENT 26 /* 32 bit PC rel. to GOT entry >> 1. */#define R_390_GOTOFF16 27 /* 16 bit offset to GOT. */#define R_390_GOTOFF64 28 /* 64 bit offset to GOT. */#define R_390_GOTPLT12 29 /* 12 bit offset to jump slot. */#define R_390_GOTPLT16 30 /* 16 bit offset to jump slot. */#define R_390_GOTPLT32 31 /* 32 bit offset to jump slot. */#define R_390_GOTPLT64 32 /* 64 bit offset to jump slot. */#define R_390_GOTPLTENT 33 /* 32 bit rel. offset to jump slot. */#define R_390_PLTOFF16 34 /* 16 bit offset from GOT to PLT. */#define R_390_PLTOFF32 35 /* 32 bit offset from GOT to PLT. */#define R_390_PLTOFF64 36 /* 16 bit offset from GOT to PLT. */#define R_390_TLS_LOAD 37 /* Tag for load insn in TLS code. */#define R_390_TLS_GDCALL 38 /* Tag for function call in general dynamic TLS code. */#define R_390_TLS_LDCALL 39 /* Tag for function call in local dynamic TLS code. */#define R_390_TLS_GD32 40 /* Direct 32 bit for general dynamic thread local data. */#define R_390_TLS_GD64 41 /* Direct 64 bit for general dynamic thread local data. */#define R_390_TLS_GOTIE12 42 /* 12 bit GOT offset for static TLS block offset. */#define R_390_TLS_GOTIE32 43 /* 32 bit GOT offset for static TLS block offset. */#define R_390_TLS_GOTIE64 44 /* 64 bit GOT offset for static TLS block offset. */#define R_390_TLS_LDM32 45 /* Direct 32 bit for local dynamic thread local data in LD code. */#define R_390_TLS_LDM64 46 /* Direct 64 bit for local dynamic thread local data in LD code. */#define R_390_TLS_IE32 47 /* 32 bit address of GOT entry for negated static TLS block offset. */#define R_390_TLS_IE64 48 /* 64 bit address of GOT entry for negated static TLS block offset. */#define R_390_TLS_IEENT 49 /* 32 bit rel. offset to GOT entry for negated static TLS block offset. */#define R_390_TLS_LE32 50 /* 32 bit negated offset relative to static TLS block. */#define R_390_TLS_LE64 51 /* 64 bit negated offset relative to static TLS block. */#define R_390_TLS_LDO32 52 /* 32 bit offset relative to TLS block. */#define R_390_TLS_LDO64 53 /* 64 bit offset relative to TLS block. */#define R_390_TLS_DTPMOD 54 /* ID of module containing symbol. */#define R_390_TLS_DTPOFF 55 /* Offset in TLS block. */#define R_390_TLS_TPOFF 56 /* Negate offset in static TLS block. *//* Keep this the last entry. */#define R_390_NUM 57/* x86-64 relocation types */#define R_X86_64_NONE 0 /* No reloc */#define R_X86_64_64 1 /* Direct 64 bit */#define R_X86_64_PC32 2 /* PC relative 32 bit signed */#define R_X86_64_GOT32 3 /* 32 bit GOT entry */#define R_X86_64_PLT32 4 /* 32 bit PLT address */#define R_X86_64_COPY 5 /* Copy symbol at runtime */#define R_X86_64_GLOB_DAT 6 /* Create GOT entry */#define R_X86_64_JUMP_SLOT 7 /* Create PLT entry */#define R_X86_64_RELATIVE 8 /* Adjust by program base */#define R_X86_64_GOTPCREL 9 /* 32 bit signed pc relative offset to GOT */#define R_X86_64_32 10 /* Direct 32 bit zero extended */#define R_X86_64_32S 11 /* Direct 32 bit sign extended */#define R_X86_64_16 12 /* Direct 16 bit zero extended */#define R_X86_64_PC16 13 /* 16 bit sign extended pc relative */#define R_X86_64_8 14 /* Direct 8 bit sign extended */#define R_X86_64_PC8 15 /* 8 bit sign extended pc relative */#define R_X86_64_NUM 16/* Legal values for e_flags field of Elf64_Ehdr. */#define EF_ALPHA_32BIT 1 /* All addresses are below 2GB *//* HPPA specific definitions. *//* Legal values for e_flags field of Elf32_Ehdr. */#define EF_PARISC_TRAPNIL 0x00010000 /* Trap nil pointer dereference. */#define EF_PARISC_EXT 0x00020000 /* Program uses arch. extensions. */#define EF_PARISC_LSB 0x00040000 /* Program expects little endian. */#define EF_PARISC_WIDE 0x00080000 /* Program expects wide mode. */#define EF_PARISC_NO_KABP 0x00100000 /* No kernel assisted branch prediction. */#define EF_PARISC_LAZYSWAP 0x00400000 /* Allow lazy swapping. */#define EF_PARISC_ARCH 0x0000ffff /* Architecture version. *//* Defined values for `e_flags & EF_PARISC_ARCH' are: */#define EFA_PARISC_1_0 0x020b /* PA-RISC 1.0 big-endian. */#define EFA_PARISC_1_1 0x0210 /* PA-RISC 1.1 big-endian. */#define EFA_PARISC_2_0 0x0214 /* PA-RISC 2.0 big-endian. *//* Additional section indeces. */#define SHN_PARISC_ANSI_COMMON 0xff00 /* Section for tenatively declared symbols in ANSI C. */#define SHN_PARISC_HUGE_COMMON 0xff01 /* Common blocks in huge model. *//* Legal values for sh_type field of Elf32_Shdr. */#define SHT_PARISC_EXT 0x70000000 /* Contains product specific ext. */#define SHT_PARISC_UNWIND 0x70000001 /* Unwind information. */#define SHT_PARISC_DOC 0x70000002 /* Debug info for optimized code. *//* Legal values for sh_flags field of Elf32_Shdr. */#define SHF_PARISC_SHORT 0x20000000 /* Section with short addressing. */#define SHF_PARISC_HUGE 0x40000000 /* Section far from gp. */#define SHF_PARISC_SBP 0x80000000 /* Static branch prediction code. *//* Legal values for ST_TYPE subfield of st_info (symbol type). */#define STT_PARISC_MILLICODE 13 /* Millicode function entry point. */#define STT_HP_OPAQUE (STT_LOOS + 0x1)#define STT_HP_STUB (STT_LOOS + 0x2)/* HPPA relocs. */#define R_PARISC_NONE 0 /* No reloc. */#define R_PARISC_DIR32 1 /* Direct 32-bit reference. */#define R_PARISC_DIR21L 2 /* Left 21 bits of eff. address. */#define R_PARISC_DIR17R 3 /* Right 17 bits of eff. address. */#define R_PARISC_DIR17F 4 /* 17 bits of eff. address. */#define R_PARISC_DIR14R 6 /* Right 14 bits of eff. address. */#define R_PARISC_PCREL32 9 /* 32-bit rel. address. */#define R_PARISC_PCREL21L 10 /* Left 21 bits of rel. address. */#define R_PARISC_PCREL17R 11 /* Right 17 bits of rel. address. */#define R_PARISC_PCREL17F 12 /* 17 bits of rel. address. */#define R_PARISC_PCREL14R 14 /* Right 14 bits of rel. address. */#define R_PARISC_DPREL21L 18 /* Left 21 bits of rel. address. */#define R_PARISC_DPREL14R 22 /* Right 14 bits of rel. address. */#define R_PARISC_GPREL21L 26 /* GP-relative, left 21 bits. */#define R_PARISC_GPREL14R 30 /* GP-relative, right 14 bits. */#define R_PARISC_LTOFF21L 34 /* LT-relative, left 21 bits. */#define R_PARISC_LTOFF14R 38 /* LT-relative, right 14 bits. */#define R_PARISC_SECREL32 41 /* 32 bits section rel. address. */#define R_PARISC_SEGBASE 48 /* No relocation, set segment base. */#define R_PARISC_SEGREL32 49 /* 32 bits segment rel. address. */#define R_PARISC_PLTOFF21L 50 /* PLT rel. address, left 21 bits. */#define R_PARISC_PLTOFF14R 54 /* PLT rel. address, right 14 bits. */#define R_PARISC_LTOFF_FPTR32 57 /* 32 bits LT-rel. function pointer. */#define R_PARISC_LTOFF_FPTR21L 58 /* LT-rel. fct ptr, left 21 bits. */#define R_PARISC_LTOFF_FPTR14R 62 /* LT-rel. fct ptr, right 14 bits. */#define R_PARISC_FPTR64 64 /* 64 bits function address. */#define R_PARISC_PLABEL32 65 /* 32 bits function address. */#define R_PARISC_PCREL64 72 /* 64 bits PC-rel. address. */#define R_PARISC_PCREL22F 74 /* 22 bits PC-rel. address. */#define R_PARISC_PCREL14WR 75 /* PC-rel. address, right 14 bits. */#define R_PARISC_PCREL14DR 76 /* PC rel. address, right 14 bits. */#define R_PARISC_PCREL16F 77 /* 16 bits PC-rel. address. */#define R_PARISC_PCREL16WF 78 /* 16 bits PC-rel. address. */#define R_PARISC_PCREL16DF 79 /* 16 bits PC-rel. address. */#define R_PARISC_DIR64 80 /* 64 bits of eff. address. */#define R_PARISC_DIR14WR 83 /* 14 bits of eff. address. */#define R_PARISC_DIR14DR 84 /* 14 bits of eff. address. */#define R_PARISC_DIR16F 85 /* 16 bits of eff. address. */#define R_PARISC_DIR16WF 86 /* 16 bits of eff. address. */#define R_PARISC_DIR16DF 87 /* 16 bits of eff. address. */#define R_PARISC_GPREL64 88 /* 64 bits of GP-rel. address. */#define R_PARISC_GPREL14WR 91 /* GP-rel. address, right 14 bits. */#define R_PARISC_GPREL14DR 92 /* GP-rel. address, right 14 bits. */#define R_PARISC_GPREL16F 93 /* 16 bits GP-rel. address. */#define R_PARISC_GPREL16WF 94 /* 16 bits GP-rel. address. */#define R_PARISC_GPREL16DF 95 /* 16 bits GP-rel. address. */#define R_PARISC_LTOFF64 96 /* 64 bits LT-rel. address. */#define R_PARISC_LTOFF14WR 99 /* LT-rel. address, right 14 bits. */#define R_PARISC_LTOFF14DR 100 /* LT-rel. address, right 14 bits. */#define R_PARISC_LTOFF16F 101 /* 16 bits LT-rel. address. */#define R_PARISC_LTOFF16WF 102 /* 16 bits LT-rel. address. */#define R_PARISC_LTOFF16DF 103 /* 16 bits LT-rel. address. */#define R_PARISC_SECREL64 104 /* 64 bits section rel. address. */#define R_PARISC_SEGREL64 112 /* 64 bits segment rel. address. */#define R_PARISC_PLTOFF14WR 115 /* PLT-rel. address, right 14 bits. */#define R_PARISC_PLTOFF14DR 116 /* PLT-rel. address, right 14 bits. */#define R_PARISC_PLTOFF16F 117 /* 16 bits LT-rel. address. */#define R_PARISC_PLTOFF16WF 118 /* 16 bits PLT-rel. address. */#define R_PARISC_PLTOFF16DF 119 /* 16 bits PLT-rel. address. */#define R_PARISC_LTOFF_FPTR64 120 /* 64 bits LT-rel. function ptr. */#define R_PARISC_LTOFF_FPTR14WR 123 /* LT-rel. fct. ptr., right 14 bits. */#define R_PARISC_LTOFF_FPTR14DR 124 /* LT-rel. fct. ptr., right 14 bits. */#define R_PARISC_LTOFF_FPTR16F 125 /* 16 bits LT-rel. function ptr. */#define R_PARISC_LTOFF_FPTR16WF 126 /* 16 bits LT-rel. function ptr. */#define R_PARISC_LTOFF_FPTR16DF 127 /* 16 bits LT-rel. function ptr. */#define R_PARISC_LORESERVE 128#define R_PARISC_COPY 128 /* Copy relocation. */#define R_PARISC_IPLT 129 /* Dynamic reloc, imported PLT */#define R_PARISC_EPLT 130 /* Dynamic reloc, exported PLT */#define R_PARISC_TPREL32 153 /* 32 bits TP-rel. address. */#define R_PARISC_TPREL21L 154 /* TP-rel. address, left 21 bits. */#define R_PARISC_TPREL14R 158 /* TP-rel. address, right 14 bits. */#define R_PARISC_LTOFF_TP21L 162 /* LT-TP-rel. address, left 21 bits. */#define R_PARISC_LTOFF_TP14R 166 /* LT-TP-rel. address, right 14 bits.*/#define R_PARISC_LTOFF_TP14F 167 /* 14 bits LT-TP-rel. address. */#define R_PARISC_TPREL64 216 /* 64 bits TP-rel. address. */#define R_PARISC_TPREL14WR 219 /* TP-rel. address, right 14 bits. */#define R_PARISC_TPREL14DR 220 /* TP-rel. address, right 14 bits. */#define R_PARISC_TPREL16F 221 /* 16 bits TP-rel. address. */#define R_PARISC_TPREL16WF 222 /* 16 bits TP-rel. address. */#define R_PARISC_TPREL16DF 223 /* 16 bits TP-rel. address. */#define R_PARISC_LTOFF_TP64 224 /* 64 bits LT-TP-rel. address. */#define R_PARISC_LTOFF_TP14WR 227 /* LT-TP-rel. address, right 14 bits.*/#define R_PARISC_LTOFF_TP14DR 228 /* LT-TP-rel. address, right 14 bits.*/#define R_PARISC_LTOFF_TP16F 229 /* 16 bits LT-TP-rel. address. */#define R_PARISC_LTOFF_TP16WF 230 /* 16 bits LT-TP-rel. address. */#define R_PARISC_LTOFF_TP16DF 231 /* 16 bits LT-TP-rel. address. */#define R_PARISC_HIRESERVE 255/* Legal values for p_type field of Elf32_Phdr/Elf64_Phdr. */#define PT_HP_TLS (PT_LOOS + 0x0)#define PT_HP_CORE_NONE (PT_LOOS + 0x1)#define PT_HP_CORE_VERSION (PT_LOOS + 0x2)#define PT_HP_CORE_KERNEL (PT_LOOS + 0x3)#define PT_HP_CORE_COMM (PT_LOOS + 0x4)#define PT_HP_CORE_PROC (PT_LOOS + 0x5)#define PT_HP_CORE_LOADABLE (PT_LOOS + 0x6)#define PT_HP_CORE_STACK (PT_LOOS + 0x7)#define PT_HP_CORE_SHM (PT_LOOS + 0x8)#define PT_HP_CORE_MMF (PT_LOOS + 0x9)#define PT_HP_PARALLEL (PT_LOOS + 0x10)#define PT_HP_FASTBIND (PT_LOOS + 0x11)#define PT_HP_OPT_ANNOT (PT_LOOS + 0x12)#define PT_HP_HSL_ANNOT (PT_LOOS + 0x13)#define PT_HP_STACK (PT_LOOS + 0x14)#define PT_PARISC_ARCHEXT 0x70000000#define PT_PARISC_UNWIND 0x70000001/* Legal values for p_flags field of Elf32_Phdr/Elf64_Phdr. */#define PF_PARISC_SBP 0x08000000#define PF_HP_PAGE_SIZE 0x00100000#define PF_HP_FAR_SHARED 0x00200000#define PF_HP_NEAR_SHARED 0x00400000#define PF_HP_CODE 0x01000000#define PF_HP_MODIFY 0x02000000#define PF_HP_LAZYSWAP 0x04000000#define PF_HP_SBP 0x08000000/* IA-64 specific declarations. *//* Processor specific flags for the Ehdr e_flags field. */#define EF_IA_64_MASKOS 0x0000000f /* os-specific flags */#define EF_IA_64_ABI64 0x00000010 /* 64-bit ABI */#define EF_IA_64_ARCH 0xff000000 /* arch. version mask *//* Processor specific values for the Phdr p_type field. */#define PT_IA_64_ARCHEXT (PT_LOPROC + 0) /* arch extension bits */#define PT_IA_64_UNWIND (PT_LOPROC + 1) /* ia64 unwind bits *//* Processor specific flags for the Phdr p_flags field. */#define PF_IA_64_NORECOV 0x80000000 /* spec insns w/o recovery *//* Processor specific values for the Shdr sh_type field. */#define SHT_IA_64_EXT (SHT_LOPROC + 0) /* extension bits */#define SHT_IA_64_UNWIND (SHT_LOPROC + 1) /* unwind bits *//* Processor specific flags for the Shdr sh_flags field. */#define SHF_IA_64_SHORT 0x10000000 /* section near gp */#define SHF_IA_64_NORECOV 0x20000000 /* spec insns w/o recovery *//* Processor specific values for the Dyn d_tag field. */#define DT_IA_64_PLT_RESERVE (DT_LOPROC + 0)#define DT_IA_64_NUM 1/* IA-64 relocations. */#define R_IA64_NONE 0x00 /* none */#define R_IA64_IMM14 0x21 /* symbol + addend, add imm14 */#define R_IA64_IMM22 0x22 /* symbol + addend, add imm22 */#define R_IA64_IMM64 0x23 /* symbol + addend, mov imm64 */#define R_IA64_DIR32MSB 0x24 /* symbol + addend, data4 MSB */#define R_IA64_DIR32LSB 0x25 /* symbol + addend, data4 LSB */#define R_IA64_DIR64MSB 0x26 /* symbol + addend, data8 MSB */#define R_IA64_DIR64LSB 0x27 /* symbol + addend, data8 LSB */#define R_IA64_GPREL22 0x2a /* @gprel(sym + add), add imm22 */#define R_IA64_GPREL64I 0x2b /* @gprel(sym + add), mov imm64 */#define R_IA64_GPREL32MSB 0x2c /* @gprel(sym + add), data4 MSB */#define R_IA64_GPREL32LSB 0x2d /* @gprel(sym + add), data4 LSB */#define R_IA64_GPREL64MSB 0x2e /* @gprel(sym + add), data8 MSB */#define R_IA64_GPREL64LSB 0x2f /* @gprel(sym + add), data8 LSB */#define R_IA64_LTOFF22 0x32 /* @ltoff(sym + add), add imm22 */#define R_IA64_LTOFF64I 0x33 /* @ltoff(sym + add), mov imm64 */#define R_IA64_PLTOFF22 0x3a /* @pltoff(sym + add), add imm22 */#define R_IA64_PLTOFF64I 0x3b /* @pltoff(sym + add), mov imm64 */#define R_IA64_PLTOFF64MSB 0x3e /* @pltoff(sym + add), data8 MSB */#define R_IA64_PLTOFF64LSB 0x3f /* @pltoff(sym + add), data8 LSB */#define R_IA64_FPTR64I 0x43 /* @fptr(sym + add), mov imm64 */#define R_IA64_FPTR32MSB 0x44 /* @fptr(sym + add), data4 MSB */#define R_IA64_FPTR32LSB 0x45 /* @fptr(sym + add), data4 LSB */#define R_IA64_FPTR64MSB 0x46 /* @fptr(sym + add), data8 MSB */#define R_IA64_FPTR64LSB 0x47 /* @fptr(sym + add), data8 LSB */#define R_IA64_PCREL60B 0x48 /* @pcrel(sym + add), brl */#define R_IA64_PCREL21B 0x49 /* @pcrel(sym + add), ptb, call */#define R_IA64_PCREL21M 0x4a /* @pcrel(sym + add), chk.s */#define R_IA64_PCREL21F 0x4b /* @pcrel(sym + add), fchkf */#define R_IA64_PCREL32MSB 0x4c /* @pcrel(sym + add), data4 MSB */#define R_IA64_PCREL32LSB 0x4d /* @pcrel(sym + add), data4 LSB */#define R_IA64_PCREL64MSB 0x4e /* @pcrel(sym + add), data8 MSB */#define R_IA64_PCREL64LSB 0x4f /* @pcrel(sym + add), data8 LSB */#define R_IA64_LTOFF_FPTR22 0x52 /* @ltoff(@fptr(s+a)), imm22 */#define R_IA64_LTOFF_FPTR64I 0x53 /* @ltoff(@fptr(s+a)), imm64 */#define R_IA64_LTOFF_FPTR32MSB 0x54 /* @ltoff(@fptr(s+a)), data4 MSB */#define R_IA64_LTOFF_FPTR32LSB 0x55 /* @ltoff(@fptr(s+a)), data4 LSB */#define R_IA64_LTOFF_FPTR64MSB 0x56 /* @ltoff(@fptr(s+a)), data8 MSB */#define R_IA64_LTOFF_FPTR64LSB 0x57 /* @ltoff(@fptr(s+a)), data8 LSB */#define R_IA64_SEGREL32MSB 0x5c /* @segrel(sym + add), data4 MSB */#define R_IA64_SEGREL32LSB 0x5d /* @segrel(sym + add), data4 LSB */#define R_IA64_SEGREL64MSB 0x5e /* @segrel(sym + add), data8 MSB */#define R_IA64_SEGREL64LSB 0x5f /* @segrel(sym + add), data8 LSB */#define R_IA64_SECREL32MSB 0x64 /* @secrel(sym + add), data4 MSB */#define R_IA64_SECREL32LSB 0x65 /* @secrel(sym + add), data4 LSB */#define R_IA64_SECREL64MSB 0x66 /* @secrel(sym + add), data8 MSB */#define R_IA64_SECREL64LSB 0x67 /* @secrel(sym + add), data8 LSB */#define R_IA64_REL32MSB 0x6c /* data 4 + REL */#define R_IA64_REL32LSB 0x6d /* data 4 + REL */#define R_IA64_REL64MSB 0x6e /* data 8 + REL */#define R_IA64_REL64LSB 0x6f /* data 8 + REL */#define R_IA64_LTV32MSB 0x74 /* symbol + addend, data4 MSB */#define R_IA64_LTV32LSB 0x75 /* symbol + addend, data4 LSB */#define R_IA64_LTV64MSB 0x76 /* symbol + addend, data8 MSB */#define R_IA64_LTV64LSB 0x77 /* symbol + addend, data8 LSB */#define R_IA64_PCREL21BI 0x79 /* @pcrel(sym + add), 21bit inst */#define R_IA64_PCREL22 0x7a /* @pcrel(sym + add), 22bit inst */#define R_IA64_PCREL64I 0x7b /* @pcrel(sym + add), 64bit inst */#define R_IA64_IPLTMSB 0x80 /* dynamic reloc, imported PLT, MSB */#define R_IA64_IPLTLSB 0x81 /* dynamic reloc, imported PLT, LSB */#define R_IA64_COPY 0x84 /* copy relocation */#define R_IA64_SUB 0x85 /* Addend and symbol difference */#define R_IA64_LTOFF22X 0x86 /* LTOFF22, relaxable. */#define R_IA64_LDXMOV 0x87 /* Use of LTOFF22X. */#define R_IA64_TPREL14 0x91 /* @tprel(sym + add), imm14 */#define R_IA64_TPREL22 0x92 /* @tprel(sym + add), imm22 */#define R_IA64_TPREL64I 0x93 /* @tprel(sym + add), imm64 */#define R_IA64_TPREL64MSB 0x96 /* @tprel(sym + add), data8 MSB */#define R_IA64_TPREL64LSB 0x97 /* @tprel(sym + add), data8 LSB */#define R_IA64_LTOFF_TPREL22 0x9a /* @ltoff(@tprel(s+a)), imm2 */#define R_IA64_DTPMOD64MSB 0xa6 /* @dtpmod(sym + add), data8 MSB */#define R_IA64_DTPMOD64LSB 0xa7 /* @dtpmod(sym + add), data8 LSB */#define R_IA64_LTOFF_DTPMOD22 0xaa /* @ltoff(@dtpmod(sym + add)), imm22 */#define R_IA64_DTPREL14 0xb1 /* @dtprel(sym + add), imm14 */#define R_IA64_DTPREL22 0xb2 /* @dtprel(sym + add), imm22 */#define R_IA64_DTPREL64I 0xb3 /* @dtprel(sym + add), imm64 */#define R_IA64_DTPREL32MSB 0xb4 /* @dtprel(sym + add), data4 MSB */#define R_IA64_DTPREL32LSB 0xb5 /* @dtprel(sym + add), data4 LSB */#define R_IA64_DTPREL64MSB 0xb6 /* @dtprel(sym + add), data8 MSB */#define R_IA64_DTPREL64LSB 0xb7 /* @dtprel(sym + add), data8 LSB */#define R_IA64_LTOFF_DTPREL22 0xba /* @ltoff(@dtprel(s+a)), imm22 */typedef struct elf32_rel { Elf32_Addr r_offset; Elf32_Word r_info;} Elf32_Rel;typedef struct elf64_rel { Elf64_Addr r_offset; /* Location at which to apply the action */ Elf64_Xword r_info; /* index and type of relocation */} Elf64_Rel;typedef struct elf32_rela{ Elf32_Addr r_offset; Elf32_Word r_info; Elf32_Sword r_addend;} Elf32_Rela;typedef struct elf64_rela { Elf64_Addr r_offset; /* Location at which to apply the action */ Elf64_Xword r_info; /* index and type of relocation */ Elf64_Sxword r_addend; /* Constant addend used to compute value */} Elf64_Rela;typedef struct elf32_sym{ Elf32_Word st_name; Elf32_Addr st_value; Elf32_Word st_size; unsigned char st_info; unsigned char st_other; Elf32_Half st_shndx;} Elf32_Sym;typedef struct elf64_sym { Elf64_Word st_name; /* Symbol name, index in string tbl */ unsigned char st_info; /* Type and binding attributes */ unsigned char st_other; /* No defined meaning, 0 */ Elf64_Half st_shndx; /* Associated section index */ Elf64_Addr st_value; /* Value of the symbol */ Elf64_Xword st_size; /* Associated symbol size */} Elf64_Sym;#define EI_NIDENT 16typedef struct elf32_hdr{ unsigned char e_ident[EI_NIDENT]; Elf32_Half e_type; Elf32_Half e_machine; Elf32_Word e_version; Elf32_Addr e_entry; /* Entry point */ Elf32_Off e_phoff; Elf32_Off e_shoff; Elf32_Word e_flags; Elf32_Half e_ehsize; Elf32_Half e_phentsize; Elf32_Half e_phnum; Elf32_Half e_shentsize; Elf32_Half e_shnum; Elf32_Half e_shstrndx;} Elf32_Ehdr;typedef struct elf64_hdr { unsigned char e_ident[16]; /* ELF "magic number" */ Elf64_Half e_type; Elf64_Half e_machine; Elf64_Word e_version; Elf64_Addr e_entry; /* Entry point virtual address */ Elf64_Off e_phoff; /* Program header table file offset */ Elf64_Off e_shoff; /* Section header table file offset */ Elf64_Word e_flags; Elf64_Half e_ehsize; Elf64_Half e_phentsize; Elf64_Half e_phnum; Elf64_Half e_shentsize; Elf64_Half e_shnum; Elf64_Half e_shstrndx;} Elf64_Ehdr;/* These constants define the permissions on sections in the program header, p_flags. */#define PF_R 0x4#define PF_W 0x2#define PF_X 0x1typedef struct elf32_phdr{ Elf32_Word p_type; Elf32_Off p_offset; Elf32_Addr p_vaddr; Elf32_Addr p_paddr; Elf32_Word p_filesz; Elf32_Word p_memsz; Elf32_Word p_flags; Elf32_Word p_align;} Elf32_Phdr;typedef struct elf64_phdr { Elf64_Word p_type; Elf64_Word p_flags; Elf64_Off p_offset; /* Segment file offset */ Elf64_Addr p_vaddr; /* Segment virtual address */ Elf64_Addr p_paddr; /* Segment physical address */ Elf64_Xword p_filesz; /* Segment size in file */ Elf64_Xword p_memsz; /* Segment size in memory */ Elf64_Xword p_align; /* Segment alignment, file & memory */} Elf64_Phdr;/* sh_type */#define SHT_NULL 0#define SHT_PROGBITS 1#define SHT_SYMTAB 2#define SHT_STRTAB 3#define SHT_RELA 4#define SHT_HASH 5#define SHT_DYNAMIC 6#define SHT_NOTE 7#define SHT_NOBITS 8#define SHT_REL 9#define SHT_SHLIB 10#define SHT_DYNSYM 11#define SHT_NUM 12#define SHT_LOPROC 0x70000000#define SHT_HIPROC 0x7fffffff#define SHT_LOUSER 0x80000000#define SHT_HIUSER 0xffffffff#define SHT_MIPS_LIST 0x70000000#define SHT_MIPS_CONFLICT 0x70000002#define SHT_MIPS_GPTAB 0x70000003#define SHT_MIPS_UCODE 0x70000004/* sh_flags */#define SHF_WRITE 0x1#define SHF_ALLOC 0x2#define SHF_EXECINSTR 0x4#define SHF_MASKPROC 0xf0000000#define SHF_MIPS_GPREL 0x10000000/* special section indexes */#define SHN_UNDEF 0#define SHN_LORESERVE 0xff00#define SHN_LOPROC 0xff00#define SHN_HIPROC 0xff1f#define SHN_ABS 0xfff1#define SHN_COMMON 0xfff2#define SHN_HIRESERVE 0xffff#define SHN_MIPS_ACCOMON 0xff00typedef struct elf32_shdr { Elf32_Word sh_name; Elf32_Word sh_type; Elf32_Word sh_flags; Elf32_Addr sh_addr; Elf32_Off sh_offset; Elf32_Word sh_size; Elf32_Word sh_link; Elf32_Word sh_info; Elf32_Word sh_addralign; Elf32_Word sh_entsize;} Elf32_Shdr;typedef struct elf64_shdr { Elf64_Word sh_name; /* Section name, index in string tbl */ Elf64_Word sh_type; /* Type of section */ Elf64_Xword sh_flags; /* Miscellaneous section attributes */ Elf64_Addr sh_addr; /* Section virtual addr at execution */ Elf64_Off sh_offset; /* Section file offset */ Elf64_Xword sh_size; /* Size of section in bytes */ Elf64_Word sh_link; /* Index of another section */ Elf64_Word sh_info; /* Additional section information */ Elf64_Xword sh_addralign; /* Section alignment */ Elf64_Xword sh_entsize; /* Entry size if section holds table */} Elf64_Shdr;#define EI_MAG0 0 /* e_ident[] indexes */#define EI_MAG1 1#define EI_MAG2 2#define EI_MAG3 3#define EI_CLASS 4#define EI_DATA 5#define EI_VERSION 6#define EI_PAD 7#define ELFMAG0 0x7f /* EI_MAG */#define ELFMAG1 'E'#define ELFMAG2 'L'#define ELFMAG3 'F'#define ELFMAG "177ELF"#define SELFMAG 4#define ELFCLASSNONE 0 /* EI_CLASS */#define ELFCLASS32 1#define ELFCLASS64 2#define ELFCLASSNUM 3#define ELFDATANONE 0 /* e_ident[EI_DATA] */#define ELFDATA2LSB 1#define ELFDATA2MSB 2#define EV_NONE 0 /* e_version, EI_VERSION */#define EV_CURRENT 1#define EV_NUM 2/* Notes used in ET_CORE */#define NT_PRSTATUS 1#define NT_PRFPREG 2#define NT_PRPSINFO 3#define NT_TASKSTRUCT 4#define NT_PRXFPREG 0x46e62b7f /* copied from gdb5.1/include/elf/common.h *//* Note header in a PT_NOTE section */typedef struct elf32_note { Elf32_Word n_namesz; /* Name size */ Elf32_Word n_descsz; /* Content size */ Elf32_Word n_type; /* Content type */} Elf32_Nhdr;/* Note header in a PT_NOTE section */typedef struct elf64_note { Elf64_Word n_namesz; /* Name size */ Elf64_Word n_descsz; /* Content size */ Elf64_Word n_type; /* Content type */} Elf64_Nhdr;#if ELF_CLASS == ELFCLASS32#define elfhdr elf32_hdr#define elf_phdr elf32_phdr#define elf_note elf32_note#define elf_shdr elf32_shdr#define elf_sym elf32_sym#define elf_addr_t Elf32_Off#ifdef ELF_USES_RELOCA# define ELF_RELOC Elf32_Rela#else# define ELF_RELOC Elf32_Rel#endif#else#define elfhdr elf64_hdr#define elf_phdr elf64_phdr#define elf_note elf64_note#define elf_shdr elf64_shdr#define elf_sym elf64_sym#define elf_addr_t Elf64_Off#ifdef ELF_USES_RELOCA# define ELF_RELOC Elf64_Rela#else# define ELF_RELOC Elf64_Rel#endif#endif /* ELF_CLASS */#ifndef ElfW# if ELF_CLASS == ELFCLASS32# define ElfW(x) Elf32_ ## x# define ELFW(x) ELF32_ ## x# else# define ElfW(x) Elf64_ ## x# define ELFW(x) ELF64_ ## x# endif#endif#endif /* _QEMU_ELF_H */完整的代码可以在这里下载 github：https://github.com/WangYinuo/FixElfSection这里小弟也写了一个内存dump工具
github：https://github.com/WangYinuo/MemDump
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