[PATCH 5.11 380/775] objtool: Fix error handling for STD/CLD warnings
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-03-02 01:40:07
Also in:
lkml
Subsystem:
objtool, the rest · Maintainers:
Josh Poimboeuf, Peter Zijlstra, Linus Torvalds
From: Josh Poimboeuf <redacted>
[ Upstream commit 6f567c9300a5ebd7b18c26dda1c8d6ffbdd0debd ]
Actually return an error (and display a backtrace, if requested) for
directional bit warnings.
Fixes: 2f0f9e9ad7b3 ("objtool: Add Direction Flag validation")
Signed-off-by: Josh Poimboeuf <redacted>
Link: https://lore.kernel.org/r/dc70f2adbc72f09526f7cab5b6feb8bf7f6c5ad4.1611263461.git.jpoimboe@redhat.com (local)
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/objtool/check.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 4bd30315eb62b..2e154f00ccec2 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c@@ -2592,15 +2592,19 @@ static int validate_branch(struct objtool_file *file, struct symbol *func, break; case INSN_STD: - if (state.df) + if (state.df) { WARN_FUNC("recursive STD", sec, insn->offset); + return 1; + } state.df = true; break; case INSN_CLD: - if (!state.df && func) + if (!state.df && func) { WARN_FUNC("redundant CLD", sec, insn->offset); + return 1; + } state.df = false; break;
--
2.27.0