From: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Date: Sun, 31 Jul 2022 08:06:13 +0000 (+0200)
Subject: Makefile: avoid false positive -Wmaybe-uninitialized
X-Git-Tag: v2025.01-rc5-pxa1908~1316^2~3
X-Git-Url: http://git.dujemihanovic.xyz/login.html?a=commitdiff_plain;h=8602d97ca2cf3e06387251afddc281d1d1841f50;p=u-boot.git

Makefile: avoid false positive -Wmaybe-uninitialized

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@canonical.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---

diff --git a/Makefile b/Makefile
index df0d64b830..1a66f69a4b 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 :=