[PATCH v2 36/62] objtool: Simplify special symbol handling in elf_update_symbol()

Josh Poimboeuf posted 62 patches 7 months, 1 week ago
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[PATCH v2 36/62] objtool: Simplify special symbol handling in elf_update_symbol()
Posted by Josh Poimboeuf 7 months, 1 week ago
!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@kernel.org>
---
 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