On Sun, Jan 25, 2026 at 9:56 PM Josh Poimboeuf <[email protected]> wrote: > > Running objtool klp-diff on a changed function which uses WARN() can > fail with: > > vmlinux.o: error: objtool: md_run+0x866: failed to convert reloc sym > '__bug_table' to its proper format > > The problem is that since commit 5b472b6e5bd9 ("x86_64/bug: Implement > __WARN_printf()"), each __WARN_printf() call site now directly > references its bug table entry. klp-diff errors out when it can't > convert such section-based references to object symbols (because bug > table entries don't have symbols). > > Luckily, klp-diff already has code to create symbols for bug table > entries. Move that code earlier, before function diffing. > > Fixes: dd590d4d57eb ("objtool/klp: Introduce klp diff subcommand for diffing > object files") > Fixes: 5b472b6e5bd9 ("x86_64/bug: Implement __WARN_printf()") > Reported-by: Song Liu <[email protected]> > Signed-off-by: Josh Poimboeuf <[email protected]>
Tested-by: Song Liu <[email protected]> Thanks for the fix!
