[PATCH v2 36/62] objtool: Simplify special symbol handling in elf_update_symbol()
From: Josh Poimboeuf
Date: Fri May 09 2025 - 16:25:48 EST
!sym->sec isn't actually a thing: even STT_UNDEF and other special
symbol types belong to NULL section 0.
Simplify the initialization of 'shndx' accordingly.
Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
---
tools/objtool/elf.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/tools/objtool/elf.c b/tools/objtool/elf.c
index 9a1fc0392b7f..859d677e172c 100644
--- a/tools/objtool/elf.c
+++ b/tools/objtool/elf.c
@@ -635,7 +635,7 @@ static int elf_update_sym_relocs(struct elf *elf, struct symbol *sym)
static int elf_update_symbol(struct elf *elf, struct section *symtab,
struct section *symtab_shndx, struct symbol *sym)
{
- Elf32_Word shndx = sym->sec ? sym->sec->idx : SHN_UNDEF;
+ Elf32_Word shndx;
Elf_Data *symtab_data = NULL, *shndx_data = NULL;
Elf64_Xword entsize = symtab->sh.sh_entsize;
int max_idx, idx = sym->idx;
@@ -643,8 +643,7 @@ static int elf_update_symbol(struct elf *elf, struct section *symtab,
bool is_special_shndx = sym->sym.st_shndx >= SHN_LORESERVE &&
sym->sym.st_shndx != SHN_XINDEX;
- if (is_special_shndx)
- shndx = sym->sym.st_shndx;
+ shndx = is_special_shndx ? sym->sym.st_shndx : sym->sec->idx;
s = elf_getscn(elf->elf, symtab->idx);
if (!s) {
--
2.49.0