Objtool has some hacks which NOP out certain calls/jumps and replace
their relocations with R_X86_64_NONE. The klp-diff relocation
extraction code will error out when trying to copy these relocations due
to their negative addend, which would only makes sense for a PC-relative
branch instruction. Just ignore them.
Fixes: dd590d4d57eb ("objtool/klp: Introduce klp diff subcommand for diffing
object files")
Acked-by: Song Liu <[email protected]>
Reviewed-by: Miroslav Benes <[email protected]>
Signed-off-by: Josh Poimboeuf <[email protected]>
---
tools/objtool/klp-diff.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tools/objtool/klp-diff.c b/tools/objtool/klp-diff.c
index dd0e51dfc621..19bc811db396 100644
--- a/tools/objtool/klp-diff.c
+++ b/tools/objtool/klp-diff.c
@@ -1033,6 +1033,9 @@ static int convert_reloc_secsym_to_sym(struct elf *elf,
struct reloc *reloc)
*/
static int convert_reloc_sym(struct elf *elf, struct reloc *reloc)
{
+ if (reloc_type(reloc) == R_NONE)
+ return 1;
+
if (is_reloc_allowed(reloc))
return 0;
--
2.53.0
