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authorMasahiro Yamada <masahiroy@kernel.org>2022-07-19 19:52:59 +0300
committerMasahiro Yamada <masahiroy@kernel.org>2022-07-27 15:18:00 +0300
commit5764f6626f5f334b27e168a33735b3899d08bcd2 (patch)
tree441ee0977abf26329279c4d271bbd1616e0b4802 /scripts/mod
parent1fd49a0b5c4330ceefef4de498cec271e240aaf1 (diff)
downloadlinux-5764f6626f5f334b27e168a33735b3899d08bcd2.tar.xz
modpost: drop executable ELF support
Since commit 269a535ca931 ("modpost: generate vmlinux.symvers and reuse it for the second modpost"), modpost only parses relocatable files (ET_REL). Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Diffstat (limited to 'scripts/mod')
-rw-r--r--scripts/mod/modpost.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index e15227ee58fc..75aa10413ad4 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -321,9 +321,6 @@ static void *sym_get_data_by_offset(const struct elf_info *info,
{
Elf_Shdr *sechdr = &info->sechdrs[secindex];
- if (info->hdr->e_type != ET_REL)
- offset -= sechdr->sh_addr;
-
return (void *)info->hdr + sechdr->sh_offset + offset;
}
@@ -466,6 +463,10 @@ static int parse_elf(struct elf_info *info, const char *filename)
sechdrs = (void *)hdr + hdr->e_shoff;
info->sechdrs = sechdrs;
+ /* modpost only works for relocatable objects */
+ if (hdr->e_type != ET_REL)
+ fatal("%s: not relocatable object.", filename);
+
/* Check if file offset is correct */
if (hdr->e_shoff > info->size) {
fatal("section header offset=%lu in file '%s' is bigger than filesize=%zu\n",
@@ -1622,9 +1623,6 @@ static int addend_386_rel(struct elf_info *elf, Elf_Shdr *sechdr, Elf_Rela *r)
break;
case R_386_PC32:
r->r_addend = TO_NATIVE(*location) + 4;
- /* For CONFIG_RELOCATABLE=y */
- if (elf->hdr->e_type == ET_EXEC)
- r->r_addend += r->r_offset;
break;
}
return 0;