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authorPeter Zijlstra <peterz@infradead.org>2020-04-24 16:16:41 +0200
committerPeter Zijlstra <peterz@infradead.org>2020-04-30 20:14:32 +0200
commit60041bcd8f5ab560dabf44dc384f58bbeb5a6a30 (patch)
treeb9d42ff3e497dd8bc4a4d1a90a42a321aa991ec1 /tools/objtool
parentobjtool: Rework allocating stack_ops on decode (diff)
downloadlinux-dev-60041bcd8f5ab560dabf44dc384f58bbeb5a6a30.tar.xz
linux-dev-60041bcd8f5ab560dabf44dc384f58bbeb5a6a30.zip
objtool: Make handle_insn_ops() unconditional
Now that every instruction has a list of stack_ops; we can trivially distinquish those instructions that do not have stack_ops, their list is empty. This means we can now call handle_insn_ops() unconditionally. Suggested-by: Julien Thierry <jthierry@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Acked-by: Josh Poimboeuf <jpoimboe@redhat.com> Link: https://lkml.kernel.org/r/20200428191659.795115188@infradead.org
Diffstat (limited to 'tools/objtool')
-rw-r--r--tools/objtool/check.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 068897d5d956..6591c2dd94f1 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -2259,6 +2259,9 @@ static int validate_branch(struct objtool_file *file, struct symbol *func,
return 0;
}
+ if (handle_insn_ops(insn, &state))
+ return 1;
+
switch (insn->type) {
case INSN_RETURN:
@@ -2318,9 +2321,6 @@ static int validate_branch(struct objtool_file *file, struct symbol *func,
break;
case INSN_EXCEPTION_RETURN:
- if (handle_insn_ops(insn, &state))
- return 1;
-
/*
* This handles x86's sync_core() case, where we use an
* IRET to self. All 'normal' IRET instructions are in
@@ -2340,8 +2340,6 @@ static int validate_branch(struct objtool_file *file, struct symbol *func,
return 0;
case INSN_STACK:
- if (handle_insn_ops(insn, &state))
- return 1;
break;
case INSN_STAC: