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objtool: Ignore unwind hints for ignored functions

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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 <[email protected]>
Reviewed-by: Masami Hiramatsu <[email protected]>
Tested-by: Masami Hiramatsu <[email protected]>
Signed-off-by: Steven Rostedt (VMware) <[email protected]>
This commit is contained in:
Josh Poimboeuf authored and Steven Rostedt (VMware) committed 2021-09-30 21:24:07 -04:00
1 parent e028c4f7ac
commit 5b284b1933
1 file changed
+1 -1
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tools/objtool/check.c
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@@ -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);