From 2cb749466d179e3ccfe83eb8a52dc002d07b08af Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Thu, 1 Jun 2023 21:10:01 +0900 Subject: modpost: detect section mismatch for R_ARM_REL32 For ARM, modpost fails to detect some types of section mismatches. [test code] .section .init.data,"aw" bar: .long 0 .section .data,"aw" .globl foo foo: .long bar - . It is apparently a bad reference, but modpost does not report anything. The test code above produces the following relocations. Relocation section '.rel.data' at offset 0xe8 contains 1 entry: Offset Info Type Sym.Value Sym. Name 00000000 00000403 R_ARM_REL32 00000000 .init.data Currently, R_ARM_REL32 is just skipped. Handle it like R_ARM_ABS32. Signed-off-by: Masahiro Yamada --- scripts/mod/modpost.c | 1 + 1 file changed, 1 insertion(+) (limited to 'scripts/mod') diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index 4e911ab711d4..d10f5bdcb753 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -1281,6 +1281,7 @@ static int addend_arm_rel(struct elf_info *elf, Elf_Shdr *sechdr, Elf_Rela *r) switch (r_typ) { case R_ARM_ABS32: + case R_ARM_REL32: inst = TO_NATIVE(*(uint32_t *)loc); r->r_addend = inst + sym->st_value; break; -- cgit v1.2.3