[PATCH 1/1] Makefile: avoid false positive -Wmaybe-uninitialized
Heinrich Schuchardt
heinrich.schuchardt at canonical.com
Sun Jul 31 10:06:13 CEST 2022
When compiling with -Og gcc reports false positive -Wmaybe-uninitialized as
reported in https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394.
Silence these warnings when building with CONFIG_CC_OPTIMIZE_FOR_DEBUG.
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>
---
Makefile | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
index ff25f92974..e6c9ced399 100644
--- a/Makefile
+++ b/Makefile
@@ -676,6 +676,9 @@ endif # $(dot-config)
ifdef CONFIG_CC_OPTIMIZE_FOR_DEBUG
KBUILD_HOSTCFLAGS := -Wall -Wstrict-prototypes -Og -g -fomit-frame-pointer \
$(HOST_LFS_CFLAGS) $(HOSTCFLAGS)
+# Avoid false positives -Wmaybe-uninitialized
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394
+KBUILD_HOSTCFLAGS += -Wno-maybe-uninitialized
KBUILD_HOSTCXXFLAGS := -Og -g $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
endif
@@ -696,7 +699,10 @@ KBUILD_CFLAGS += -O2
endif
ifdef CONFIG_CC_OPTIMIZE_FOR_DEBUG
-KBUILD_CFLAGS += -Og
+KBUILD_CFLAGS += -Og -Wno-maybe-uninitialized
+# Avoid false positives -Wmaybe-uninitialized
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78394
+KBUILD_CFLAGS += -Wno-maybe-uninitialized
endif
LTO_CFLAGS :=
--
2.36.1
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