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objtool/klp: Don't report uncorrelated functions as new

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Clang LTO uses __UNIQUE_ID() to generate some uniquely named wrapper
functions, like initstubs.  If they're uncorrelated, prevent them from
being reported as new functions and included unnecessarily.

Note that dont_correlate() already includes prefix functions, so prefix
functions are still being ignored here.

Acked-by: Song Liu <song@kernel.org>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
This commit is contained in:
Josh Poimboeuf 2026-04-13 01:59:31 -07:00
parent 0a7823d1d7
commit 76eb0f8639
1 changed files with 2 additions and 2 deletions
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tools/objtool/klp-diff.c
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@ -802,7 +802,7 @@ static int mark_changed_functions(struct elfs *e)
/* Find changed functions */
for_each_sym(e->orig, sym_orig) {
if (!is_func_sym(sym_orig) || is_prefix_func(sym_orig))
if (!is_func_sym(sym_orig) || dont_correlate(sym_orig))
continue;
patched_sym = sym_orig->twin;
@ -818,7 +818,7 @@ static int mark_changed_functions(struct elfs *e)
/* Find added functions and print them */
for_each_sym(e->patched, patched_sym) {
if (!is_func_sym(patched_sym) || is_prefix_func(patched_sym))
if (!is_func_sym(patched_sym) || dont_correlate(patched_sym))
continue;
if (!patched_sym->twin) {