From: Julien Thierry <jthierry@xxxxxxxxxx>
WARN* and BUG* both use brk #0x800 opcodes and the distinction is
provided by the contents of the bug table. This table is not accessible
to objtool, so add an annotation to WARN* macros to let objtool know
that brk handler will return an resume the execution of the instructions
following the WARN's brk.
Signed-off-by: Julien Thierry <jthierry@xxxxxxxxxx>
---
arch/arm64/include/asm/bug.h | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/include/asm/bug.h b/arch/arm64/include/asm/bug.h
index 28be048db3f6..9917429971d4 100644
--- a/arch/arm64/include/asm/bug.h
+++ b/arch/arm64/include/asm/bug.h
@@ -19,7 +19,11 @@
unreachable(); \
} while (0)
-#define __WARN_FLAGS(flags) __BUG_FLAGS(BUGFLAG_WARNING|(flags))
+#define __WARN_FLAGS(flags) \
+do { \
+ __BUG_FLAGS(BUGFLAG_WARNING|(flags)); \
+ annotate_reachable(); \
+} while (0)
#define HAVE_ARCH_BUG
--
2.17.1
