elf-parser/disasm.c at master · wangloo/elf-parser · GitHub

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#include <elf-parser.h>

void disassemble(int32_t fd, Elf32_Ehdr eh, Elf32_Shdr* sh_table)

{

int32_t i;

char* sh_str; /* section-header string-table is also a section. */

char* buf; /* buffer to hold contents of the .text section */

/* Read section-header string-table */

debug("eh.e_shstrndx = 0x%x\n", eh.e_shstrndx);

sh_str = read_section(fd, sh_table[eh.e_shstrndx]);

for(i=0; i<eh.e_shnum; i++) {

if(!strcmp(".text", (sh_str + sh_table[i].sh_name))) {

printf("Found section\t\".text\"\n");

printf("at offset\t0x%08x\n", sh_table[i].sh_offset);

printf("of size\t\t0x%08x\n", sh_table[i].sh_size);

break;

}

assert(lseek(fd, sh_table[i].sh_offset, SEEK_SET)==sh_table[i].sh_offset);

buf = malloc(sh_table[i].sh_size);

if(!buf) {

printf("Failed to allocate %dbytes!!\n", sh_table[i].sh_size);

printf("Failed to disassemble!!\n");

return;

}

assert(read(fd, buf, sh_table[i].sh_size)==sh_table[i].sh_size);

/* Now buf contains the instructions (4bytes each) */

}

void disassemble64(int32_t fd, Elf64_Ehdr eh, Elf64_Shdr* sh_table)

{