bfelf64_sword
bfelf_file_resolve_symbol(struct bfelf_file_t *ef,
struct e_string_t *name,
void **addr)
{
bfelf64_sword ret = 0;
struct bfelf_sym *found_sym = 0;
if (!ef)
return invalid_argument("ef == NULL");
if (!name)
return invalid_argument("name == NULL");
if (!addr)
return invalid_argument("addr == NULL");
if (ef->relocated == 0)
return out_of_order("you need to call bfelf_loader_relocate first");
ret = private_symbol_by_name(ef, name, &found_sym);
if (ret != BFELF_SUCCESS)
return ret;
ret = private_resolve_symbol(ef, found_sym, addr);
if (ret != BFELF_SUCCESS)
return ret;
return BFELF_SUCCESS;
}
int64_t
bfelf_loader_resolve_symbol(struct bfelf_loader_t *loader,
struct e_string_t *name,
void **addr)
{
int64_t ret = 0;
struct bfelf_sym *found_sym = 0;
struct bfelf_file_t *found_ef = 0;
if (!loader)
return invalid_argument("loader == NULL");
if (!name)
return invalid_argument("name == NULL");
if (!addr)
return invalid_argument("addr == NULL");
if (loader->relocated == 0)
return out_of_order("you need to call bfelf_loader_relocate first");
ret = private_symbol_global(loader, name, &found_ef, &found_sym);
if (ret != BFELF_SUCCESS)
return ret;
ret = private_resolve_symbol(found_ef, found_sym, addr);
if (ret != BFELF_SUCCESS)
return ret;
return BFELF_SUCCESS;
}
bfelf64_sword
bfelf_loader_get_info(struct bfelf_loader_t *loader,
struct bfelf_file_t *ef,
struct section_info_t *info)
{
bfelf64_sword ret = 0;
struct bfelf_shdr *shdr = 0;
struct e_string_t name_ctors = {".ctors", 6};
struct e_string_t name_dtors = {".dtors", 6};
struct e_string_t name_eh_frame = {".eh_frame", 9};
if (!loader)
return invalid_argument("loader == NULL");
if (!ef)
return invalid_argument("ef == NULL");
if (!info)
return invalid_argument("info == NULL");
if (loader->relocated == 0)
return out_of_order("you need to call bfelf_loader_relocate first");
ret = private_get_section_by_name(ef, &name_ctors, &shdr);
if (ret != BFELF_SUCCESS)
goto failure;
if (shdr != 0)
{
ret = private_check_section(shdr, bfsht_progbits, bfshf_wa, 8, 0);
if (ret != BFELF_SUCCESS)
goto failure;
info->ctors_addr = shdr->sh_addr + ef->exec;
info->ctors_size = shdr->sh_size;
}
ret = private_get_section_by_name(ef, &name_dtors, &shdr);
if (ret != BFELF_SUCCESS)
goto failure;
if (shdr != 0)
{
ret = private_check_section(shdr, bfsht_progbits, bfshf_wa, 8, 0);
if (ret != BFELF_SUCCESS)
goto failure;
info->dtors_addr = shdr->sh_addr + ef->exec;
info->dtors_size = shdr->sh_size;
}
ret = private_get_section_by_name(ef, &name_eh_frame, &shdr);
if (ret != BFELF_SUCCESS)
goto failure;
if (shdr != 0)
{
ret = private_check_section(shdr, bfsht_progbits, bfshf_wa, 8, 0);
if (ret != BFELF_SUCCESS)
goto failure;
info->eh_frame_addr = shdr->sh_addr + ef->exec;
info->eh_frame_size = shdr->sh_size;
}
return BFELF_SUCCESS;
failure:
info->ctors_addr = 0;
info->ctors_size = 0;
info->dtors_addr = 0;
info->dtors_size = 0;
info->eh_frame_addr = 0;
info->eh_frame_size = 0;
return ret;
}
