From: Andi Kleen <a...@linux.intel.com>
With the indirect call thunk enabled compiler two objtool
warnings are triggered very frequently and make the build
very noisy.
I don't see a good way to avoid them, so just disable them
for now.
Signed-off-by: Andi Kleen <a...@linux.intel.com>
---
tools/objtool/check.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 9b341584eb1b..435c71f944dc 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -503,8 +503,13 @@ static int add_call_destinations(struct objtool_file *file)
insn->call_dest = find_symbol_by_offset(insn->sec,
dest_off);
if (!insn->call_dest) {
+#if 0
+ /* Compilers with
-mindirect-branch=thunk-extern trigger
+ * this everywhere on x86. Disable for now.
+ */
WARN_FUNC("can't find call dest symbol at
offset 0x%lx",
insn->sec, insn->offset, dest_off);
+#endif
return -1;
}
} else if (rela->sym->type == STT_SECTION) {
@@ -1716,8 +1721,14 @@ static int validate_branch(struct objtool_file *file,
struct instruction *first,
return 1;
} else if (func && has_modified_stack_frame(&state)) {
+#if 0
+ /* Compilers with
-mindirect-branch=thunk-extern trigger
+ * this everywhere on x86. Disable for now.
+ */
+
WARN_FUNC("sibling call from callable
instruction with modified stack frame",
sec, insn->offset);
+#endif
return 1;
}
--
2.14.3
