Function link_elf_reloc_local

freebsd/kern/link_elf_obj.c:1646–1721

}

static int
link_elf_reloc_local(linker_file_t lf, bool ifuncs)
{
	elf_file_t ef = (elf_file_t)lf;
	const Elf_Rel *rellim;
	const Elf_Rel *rel;
	const Elf_Rela *relalim;
	const Elf_Rela *rela;
	const Elf_Sym *sym;
	Elf_Addr base;
	int i;
	Elf_Size symidx;

	link_elf_fix_link_set(ef);

	/* Perform relocations without addend if there are any: */
	for (i = 0; i < ef->nreltab; i++) {
		rel = ef->reltab[i].rel;
		if (rel == NULL) {
			link_elf_error(ef->lf.filename, "lost a reltab");
			return (ENOEXEC);
		}
		rellim = rel + ef->reltab[i].nrel;
		base = findbase(ef, ef->reltab[i].sec);
		if (base == 0) {
			link_elf_error(ef->lf.filename, "lost base for reltab");
			return (ENOEXEC);
		}
		for ( ; rel < rellim; rel++) {
			symidx = ELF_R_SYM(rel->r_info);
			if (symidx >= ef->ddbsymcnt)
				continue;
			sym = ef->ddbsymtab + symidx;
			/* Only do local relocs */
			if (ELF_ST_BIND(sym->st_info) != STB_LOCAL)
				continue;
			if ((ELF_ST_TYPE(sym->st_info) == STT_GNU_IFUNC ||
			    elf_is_ifunc_reloc(rel->r_info)) != ifuncs)
				continue;
			if (elf_reloc_local(lf, base, rel, ELF_RELOC_REL,
			    elf_obj_lookup) != 0)
				return (ENOEXEC);
		}
	}

	/* Perform relocations with addend if there are any: */
	for (i = 0; i < ef->nrelatab; i++) {
		rela = ef->relatab[i].rela;
		if (rela == NULL) {
			link_elf_error(ef->lf.filename, "lost a relatab!");
			return (ENOEXEC);
		}
		relalim = rela + ef->relatab[i].nrela;
		base = findbase(ef, ef->relatab[i].sec);
		if (base == 0) {
			link_elf_error(ef->lf.filename, "lost base for reltab");
			return (ENOEXEC);
		}