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authorJosh Poimboeuf <jpoimboe@redhat.com>2021-09-14 17:41:23 +0300
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2021-10-01 04:24:07 +0300
commit5b284b1933688ff18099b2cb8e83456bdd149e10 (patch)
tree7c1d1f8dcd1dfcbe26b06c01bc41b68e5b3fd5aa /tools
parente028c4f7ac7ca8c96126fe46c54ab3d56ffe6a66 (diff)
downloadlinux-5b284b1933688ff18099b2cb8e83456bdd149e10.tar.xz
objtool: Ignore unwind hints for ignored functions
If a function is ignored, also ignore its hints. This is useful for the case where the function ignore is conditional on frame pointers, e.g. STACK_FRAME_NON_STANDARD_FP(). Link: https://lkml.kernel.org/r/163163048317.489837.10988954983369863209.stgit@devnote2 Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Tested-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'tools')
-rw-r--r--tools/objtool/check.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index e5947fbb9e7a..67cbdcfcabae 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -2909,7 +2909,7 @@ static int validate_unwind_hints(struct objtool_file *file, struct section *sec)
}
while (&insn->list != &file->insn_list && (!sec || insn->sec == sec)) {
- if (insn->hint && !insn->visited) {
+ if (insn->hint && !insn->visited && !insn->ignore) {
ret = validate_branch(file, insn->func, insn, state);
if (ret && backtrace)
BT_FUNC("<=== (hint)", insn);