Function elf_reloc_code

dpdk/lib/bpf/bpf_load_elf.c:233–264

* helper function, find relocation information (if any) * and update bpf code. */

 * and update bpf code.
 */
static int
elf_reloc_code(Elf *elf, Elf_Data *ed, size_t sidx,
	const struct rte_bpf_prm *prm)
{
	Elf64_Rel *re;
	Elf_Scn *sc;
	const Elf64_Shdr *sh;
	const Elf_Data *sd;
	int32_t rc;

	rc = 0;

	/* walk through all sections */
	for (sc = elf_nextscn(elf, NULL); sc != NULL && rc == 0;
			sc = elf_nextscn(elf, sc)) {

		sh = elf64_getshdr(sc);

		/* relocation data for our code section */
		if (sh->sh_type == SHT_REL && sh->sh_info == sidx) {
			sd = elf_getdata(sc, NULL);
			if (sd == NULL || sd->d_size == 0 ||
					sd->d_size % sizeof(re[0]) != 0)
				return -EINVAL;
			rc = process_reloc(elf, sh->sh_link,
				sd->d_buf, sd->d_size, ed->d_buf, ed->d_size,
				prm);
		}
	}

	return rc;
}

static struct rte_bpf *
bpf_load_elf(const struct rte_bpf_prm *prm, int32_t fd, const char *section)