解析 .dynamic 节，并不对所以平台支持
/*
* ParseAllDyna.c
*
* Created on: 2014年7月19日
* Author: angel-toms
*/
#include "ElfParser.h"
void print_elf_section_of_dynamic(MemMapping* mem,Elf32_Ehdr* pHeader,Elf32_Shdr* pSheader){
Elf32_Dyn* pDyncMem = NULL;
u1* shStringTableMem = NULL;
u4 i = 0;
u4 size = 0;
u1 buf[75];
LookupSection* pLookupSection = NULL;
Elf32_Shdr* pDynamic = NULL;
shStringTableMem = get_elf_section_of_shstr_table(mem,pHeader,pSheader);
if(NULL == shStringTableMem){
printf("Error,get elf section header string table failed !\n");
goto Exit;
}
for( ; i < pHeader->e_shnum ; i++){
if(pSheader[i].sh_type == SHT_DYNAMIC && strcmp((const char*)(shStringTableMem + pSheader[i].sh_name),".dynamic") == 0){
size = (pSheader[i].sh_size / pSheader[i].sh_entsize);
pDyncMem = (Elf32_Dyn*) (mem->base + pSheader[i].sh_offset);
pDynamic = (Elf32_Shdr*)&pSheader[i];
break;
}
continue;
}
if(NULL != pDyncMem){
//@1 by default ,dynamic link .dynstr ,so it sh_link is the index
pLookupSection = get_section_by_index(mem,pHeader,pSheader,pDynamic->sh_link);
if(NULL == pLookupSection){
printf("Error,get section by index failed");
goto Exit;
}
printf("Dynamic section :\n");
printf("Tag Type Name/Value\n");
i = 0;
for( ; i < size ; i++ ){
printf("0x%.8x ",pDyncMem[i].d_tag);
switch(pDyncMem[i].d_tag){
case DT_NULL:
printf("%-65s","Terminating entry");
printf("0x%d ",pDyncMem[i].d_un.d_val);
break;
case DT_NEEDED:
printf("%-65s","String table offset of a needed shared library");
printf("[ %s ]",(pLookupSection->base + pDyncMem[i].d_un.d_val));//because @1 ,so in here not check the section
break;
case DT_PLTRELSZ:
printf("%-65s","Total size in bytes of PLT relocations");
printf("%d (bytes) ",pDyncMem[i].d_un.d_val);
break;
case DT_PLTGOT:
printf("%-65s","Processor-dependent address");
printf("0x%.8x ",pDyncMem[i].d_un.d_ptr);
break;
case DT_HASH:
printf("%-65s","Address of symbol hash table");
printf("0x%.8x ",pDyncMem[i].d_un.d_ptr);
break;
case DT_STRTAB:
printf("%-65s","Address of string table");
printf("0x%.8x ",pDyncMem[i].d_un.d_ptr);
break;
case DT_SYMTAB:
printf("%-65s","Address of symbol table");
printf("0x%.8x ",pDyncMem[i].d_un.d_ptr);
break;
case DT_RELA:
printf("%-65s","Address of ElfNN_Rela relocations");
printf("0x%.8x ",pDyncMem[i].d_un.d_ptr);
break;
case DT_RELASZ:
printf("%-65s","Total size of ElfNN_Rela relocations");
printf("%d (bytes) ",pDyncMem[i].d_un.d_val);
break;
case DT_RELAENT:
printf("%-65s","Size of each ElfNN_Rela relocation entry");
printf("%d (bytes) ",pDyncMem[i].d_un.d_val);
break;
case DT_STRSZ:
printf("%-65s","Size of string table");
printf("%d (bytes) ",pDyncMem[i].d_un.d_val);
break;
case DT_SYMENT:
printf("%-65s","Size of each symbol table entry");
printf("%d (bytes) ",pDyncMem[i].d_un.d_val);
break;
case DT_INIT:
printf("%-65s","Address of initialization function");
printf("0x%.8x ",pDyncMem[i].d_un.d_ptr);
break;
case DT_FINI:
printf("%-65s","Address of finalization function");
printf("0x%.8x ",pDyncMem[i].d_un.d_ptr);
break;
case DT_SONAME:
printf("%-65s","String table offset of shared object name");
printf("[ %s ]",(pLookupSection->base + pDyncMem[i].d_un.d_val));
break;
case DT_RPATH:
printf("%-65s","String table offset of library path. [sup]");
printf("[ %s ]",(pLookupSection->base + pDyncMem[i].d_un.d_val));
break;
case DT_SYMBOLIC:
printf("%-65s","Indicates \"symbolic\" linking. [sup]");
printf("%d ",pDyncMem[i].d_un.d_val);
// TODO
break;
case DT_REL:
printf("%-65s","Address of ElfNN_Rel relocations");
printf("0x%.8x ",pDyncMem[i].d_un.d_ptr);
break;
case DT_RELSZ:
printf("%-65s","Total size of ElfNN_Rel relocations");
printf("%d ",pDyncMem[i].d_un.d_val);
break;
case DT_RELENT:
printf("%-65s","Size of each ElfNN_Rel relocation");
printf("%d (bytes) ",pDyncMem[i].d_un.d_val);
break;
case DT_PLTREL:
printf("%-65s","Type of relocation used for PLT");
printf("REL 0x%.2x ",pDyncMem[i].d_un.d_ptr);
break;
case DT_DEBUG:
printf("%-65s","Reserved debug");
printf("%.8x ",pDyncMem[i].d_un.d_ptr);
break;
case DT_TEXTREL:
printf("%-65s","Indicates there may be relocations in non-writable segments. [sup]");
break;
case DT_JMPREL:
printf("%-65s","Address of PLT relocations");
printf("0x%.8x ",pDyncMem[i].d_un.d_ptr);
break;
case DT_BIND_NOW:
printf("%-65s","BIND_NOW");
printf("0x%.8x",pDyncMem[i].d_un.d_ptr);
//TODO
break;
case DT_INIT_ARRAY:
printf("%-65s","Address of the array of pointers to initialization functions");
printf("0x%.8x ",pDyncMem[i].d_un.d_ptr);
break;
case DT_FINI_ARRAY:
printf("%-65s","Address of the array of pointers to termination functions ");
printf("0x%.8x ",pDyncMem[i].d_un.d_ptr);
break;
case DT_INIT_ARRAYSZ:
printf("%-65s","Size in bytes of the array of initialization functions");
printf("%d (bytes) ",pDyncMem[i].d_un.d_val);
break;
case DT_FINI_ARRAYSZ:
printf("%-65s","Size in bytes of the array of termination functions");
printf("%d (bytes) ",pDyncMem[i].d_un.d_val);
break;
case DT_RUNPATH:
printf("%-65s","String table offset of a null-terminated library search path string");
printf("0x%.8x ",pDyncMem[i].d_un.d_ptr);
printf("[ %s ]",(pLookupSection->base + pDyncMem[i].d_un.d_val));
break;
case DT_FLAGS:
printf("%-65s","Object specific flag values");
memset(buf,0,75);
if(pDyncMem[i].d_un.d_val & DF_ORIGIN){
strcat(buf,"ORIGIN ");
}
if(pDyncMem[i].d_un.d_val & DF_SYMBOLIC){
strcat(buf,"SYMBOLIC ");
}
if(pDyncMem[i].d_un.d_val & DF_TEXTREL){
strcat(buf,"TEXTREL ");
}
if(pDyncMem[i].d_un.d_val & DF_BIND_NOW){
strcat(buf,"BIND_NOW ");
}
if(pDyncMem[i].d_un.d_val & DF_STATIC_TLS){
strcat(buf,"STATIC_TLS ");
}
printf("%s",buf);
break;
case DT_PREINIT_ARRAY:
printf("%-65s","Address of the array of pointers to pre-initialization functions");
printf("0x%.8x ",pDyncMem[i].d_un.d_ptr);
break;
case DT_PREINIT_ARRAYSZ:
printf("%-65s","Size in bytes of the array of pre-initialization functions");
printf("%d (bytes) ",pDyncMem[i].d_un.d_val);
break;
case DT_MAXPOSTAGS:
printf("%-65s","number of positive tags");
printf("%d (bytes) ",pDyncMem[i].d_un.d_val);
break;
case DT_LOOS:
printf("%-65s","First OS-specific");
break;
case DT_SUNW_RTLDINF:
printf("%-65s","ld.so.1 info (private)");
break;
case DT_SUNW_FILTER:
printf("%-65s","symbol filter name");
printf("[ %s ]",(pLookupSection->base + pDyncMem[i].d_un.d_val));
// TODO
break;
case DT_SUNW_CAP:
printf("%-65s","hardware/software");
break;
case DT_HIOS:
printf("%-65s","Last OS-specific");
break;
case DT_VALRNGLO:
printf("%-65s","VALRNGLO");
break;
case DT_CHECKSUM:
printf("%-65s","elf checksum");
printf("0x%.8x ",pDyncMem[i].d_un.d_val);
break;
case DT_PLTPADSZ:
printf("%-65s","pltpadding size");
printf("%d (bytes) ",pDyncMem[i].d_un.d_val);
break;
case DT_MOVEENT:
printf("%-65s","move table entry size ");
printf("%d (bytes) ",pDyncMem[i].d_un.d_val);
break;
case DT_MOVESZ:
printf("%-65s","move table size");
printf("%d (bytes) ",pDyncMem[i].d_un.d_val);
break;
case DT_FEATURE_1:
printf("%-65s","feature holder");
memset(buf,0,75);
if(pDyncMem[i].d_un.d_val & DTF_1_PARINIT){
strcat(buf,"PARINIT ");
}
if(pDyncMem[i].d_un.d_val & DTF_1_CONFEXP){
strcat(buf,"CONFEXP ");
}
printf("%s",buf);
break;
case DT_POSFLAG_1:
printf("%-65s","flags for DT_* entries, effecting the following DT_* entry See DF_P1_* definitions");
memset(buf,0,75);
if(pDyncMem[i].d_un.d_val & DF_P1_LAZYLOAD){
strcat(buf,"LAZYLOAD ");
}
if(pDyncMem[i].d_un.d_val & DF_P1_GROUPPERM){
strcat(buf,"GROUPPERM ");
}
printf("%s",buf);
break;
case DT_SYMINSZ:
printf("%-65s","syminfo table size (in bytes)");
printf("%d (bytes) ",pDyncMem[i].d_un.d_val);
break;
case DT_SYMINENT:
printf("%-65s","syminfo entry size (in bytes)");
printf("%d (bytes) ",pDyncMem[i].d_un.d_val);
break;
case DT_ADDRRNGLO:
printf("%-65s","");
break;
case DT_GNU_HASH:
printf("%-65s","GNU-style hash table");
printf("0x%.8x ",pDyncMem[i].d_un.d_ptr);
break;
case DT_CONFIG:
printf("%-65s","configuration information");
break;
case DT_DEPAUDIT:
printf("%-65s","dependency auditing");
break;
case DT_AUDIT:
printf("%-65s","object auditing");
break;
case DT_PLTPAD:
printf("%-65s","pltpadding (sparcv9)");
break;
case DT_MOVETAB:
printf("%-65s","move table");
break;
case DT_SYMINFO:
printf("%-65s","yminfo table");
break;
case DT_VERSYM:
printf("%-65s","Address of versym section");
printf("0x%.8x ",pDyncMem[i].d_un.d_ptr);
break;
case DT_RELACOUNT:
printf("%-65s","number of RELATIVE relocations");
printf("%d ",pDyncMem[i].d_un.d_val);
break;
case DT_RELCOUNT:
printf("%-65s","number of RELATIVE relocations");
printf("%d (bytes) ",pDyncMem[i].d_un.d_val);
break;
case DT_FLAGS_1:
printf("%-65s","state flags - see DF_1_* defs");
memset(buf,0,75);
strcat(buf,"Flags: ");
if(pDyncMem[i].d_un.d_val & DF_1_BIND_NOW){
strcat(buf,"NOW ");
}
if(pDyncMem[i].d_un.d_val & DF_1_GLOBAL){
strcat(buf,"GLOBAL ");
}
if(pDyncMem[i].d_un.d_val & DF_1_NODELETE){
strcat(buf,"NODELETE ");
}
if(pDyncMem[i].d_un.d_val & DF_1_LOADFLTR){
strcat(buf,"LOADFLTR ");
}
if(pDyncMem[i].d_un.d_val & DF_1_NOOPEN){
strcat(buf,"NOOPEN ");
}
if(pDyncMem[i].d_un.d_val & DF_1_ORIGIN){
strcat(buf,"ORIGIN ");
}
if(pDyncMem[i].d_un.d_val & DF_1_NODEFLIB){
strcat(buf,"NODEFLIB ");
}
printf("%s",buf);
break;
case DT_VERDEF:
printf("%-65s","Address of verdef section");
printf("0x%.8x ",pDyncMem[i].d_un.d_ptr);
break;
case DT_VERDEFNUM:
printf("%-65s","Number of elems in verdef section ");
printf("%d (bytes) ",pDyncMem[i].d_un.d_val);
break;
case DT_VERNEED:
printf("%-65s","Address of verneed section");
printf("0x%.8x ",pDyncMem[i].d_un.d_ptr);
break;
case DT_VERNEEDNUM:
printf("%-65s","Number of elems in verneed section");
printf("%d ",pDyncMem[i].d_un.d_val);
break;
case DT_LOPROC:
printf("%-65s","First processor-specific type");
break;
case DT_DEPRECATED_SPARC_REGISTER:
printf("%-65s","DEPRECATED_SPARC_REGISTER");
break;
case DT_AUXILIARY:
printf("%-65s","shared library auxiliary name");
// TODO
printf("[ %s ]",(pLookupSection->base + pDyncMem[i].d_un.d_val));
break;
case DT_USED:
printf("%-65s","ignored - same as needed");
break;
case DT_FILTER:
printf("%-65s","shared library filter name");
printf("[ %s ]",(pLookupSection->base + pDyncMem[i].d_un.d_val));
//TODO
break;
case DT_GNU_PRELINKED:
printf("%-65s","GNU_PRELINKED");
u1 time[STR_TIME_LEN];
memset(time,0,STR_TIME_LEN);
if(get_pre_link_time(pDyncMem[i].d_un.d_val,time) != 0){
goto Exit;
}
printf("%-65s ",time);
break;
case DT_GNU_LIBLIST:
printf("%-65s","GNU_LIBLIST");
printf("0x%.8x",pDyncMem[i].d_un.d_ptr);
break;
case DT_GNU_LIBLISTSZ:
printf("%-65s","GNU_LIBLISTSZ");
printf("%d (bytes)",pDyncMem[i].d_un.d_val);
break;
case DT_GNU_CONFLICT:
printf("%-65s","GNU_CONFLICT");
printf("0x%.8x",pDyncMem[i].d_un.d_ptr);
break;
case DT_GNU_CONFLICTSZ:
printf("%-65s","GNU_CONFLICTSZ");
printf("%d (bytes)",pDyncMem[i].d_un.d_val);
break;
default:
printf("%-65s","");
printf("0x%.8x",pDyncMem[i].d_un.d_ptr);
break;
}
printf("\n");
if(pDyncMem[i].d_tag == DT_NULL)
break;
}
}
Exit:
if(shStringTableMem)
free(shStringTableMem);
if(pLookupSection)
free(pLookupSection);
}