Commit 5b284b19 authored by Josh Poimboeuf's avatar Josh Poimboeuf Committed by Steven Rostedt (VMware)
Browse files

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: default avatarJosh Poimboeuf <jpoimboe@redhat.com>
Reviewed-by: default avatarMasami Hiramatsu <mhiramat@kernel.org>
Tested-by: default avatarMasami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
parent e028c4f7

tools/objtool/check.c

+1 −1
Original line number Diff line number Diff line
@@ -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);