int main(int argc, char *argv[])
{
struct elf_data elf;
int ret;
printf("\n");
if (argc < 2)
{
printf("Please specify an ELF file on the command-line\n\n");
printf(" test \"elffile\"\n");
printf(" where \"elffile\" is the filename of the ELF file to investigate\n");
}
elf.filename = argv[1];
elf.verbose = 1;
ret = elf_load(&elf);
if (ret)
{
switch(ret)
{
case ERR_ELF_FILE_OPEN: printf("File open failed\n");
break;
case ERR_ELF_FILE_PREMATURE_EOF: printf("File open failed\n");
break;
case ERR_ELF_FILE_READ: printf("File open failed\n");
break;
case ERR_ELF_INCOMPATIBLE: printf("Incompatibke file\n");
break;
case ERR_ELF_MEMORY_ALLOCATION: printf("Memory allocation error\n");
break;
default: printf("Unknown error: %d\n", ret);
break;
}
return(ret);
}
elf_print_header(&elf);
elf_print_sections(&elf);
return(0);
}
int main(int argc, char** argv) {
if (argc < 2) {
fprintf(stderr, "no input elf specified\n");
return EXIT_FAILURE;
}
elf_t elf;
int ret = elf_read(argv[1], &elf);
if (ret != 0) {
fprintf(stderr, "unable to parse elf: %d\n", ret);
return EXIT_FAILURE;
}
elf_print_sections(&elf);
elf_print_symbols(&elf);
int symbol;
uint64_t faddr;
uint32_t* val;
ret = elf_get_symbol_by_name(&elf, "SOME_GLOBAL", &symbol);
if (ret != 0) {
fprintf(stderr, "no such symbol 'SOME_GLOBAL'\n");
return EXIT_FAILURE;
}
ret = elf_get_symbol_faddr(&elf, symbol, &faddr);
if (ret != 0) {
fprintf(stderr, "unable to map symbol: %d\n", ret);
return EXIT_FAILURE;
}
val = (uint32_t*)(elf.elf_data + faddr);
printf("Value of SOME_GLOBAL: 0x%x\n", *val);
elf_free(&elf);
return EXIT_SUCCESS;
}
