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ovmf: fix gcc12 warning for device path handling

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Backport [https://github.com/tianocore/edk2/commit/22130dcd98b4d4b76ac8d922adb4a2dbc86fa52c]

Fixes:

In function ?SetDevicePathEndNode?,
    inlined from ?FileDevicePath? at DevicePathUtilities.c:857:5:
DevicePathUtilities.c:321:3: error: writing 4 bytes into a region of size 1 [-Werror=stringop-overflow=]
  321 |   memcpy (Node, &mUefiDevicePathLibEndDevicePath, sizeof (mUefiDevicePathLibEndDevicePath));
      |   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from UefiDevicePathLib.h:22,
                 from DevicePathUtilities.c:16:
../Include/Protocol/DevicePath.h: In function ?FileDevicePath?:
../Include/Protocol/DevicePath.h:51:9: note: destination object ?Type? of size 1
   51 |   UINT8 Type;       ///< 0x01 Hardware Device Path.
      |         ^~~~

(From OE-Core rev: a33abd759e2e9f41e056f87024de3b333e9b948b)

Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Steve Sakoman
2023-01-10 07:09:03 -10:00
committed by Richard Purdie
parent 2e0077aeb8
commit f1292a552f
2 changed files with 42 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta/recipes-core/ovmf/ovmf/0001-Basetools-turn-off-gcc12-warning.patch
+41
View File
@@ -0,0 +1,41 @@
From 22130dcd98b4d4b76ac8d922adb4a2dbc86fa52c Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Thu, 24 Mar 2022 20:04:36 +0800
Subject: [PATCH] Basetools: turn off gcc12 warning
In function ?SetDevicePathEndNode?,
inlined from ?FileDevicePath? at DevicePathUtilities.c:857:5:
DevicePathUtilities.c:321:3: error: writing 4 bytes into a region of size 1 [-Werror=stringop-overflow=]
321 | memcpy (Node, &mUefiDevicePathLibEndDevicePath, sizeof (mUefiDevicePathLibEndDevicePath));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from UefiDevicePathLib.h:22,
from DevicePathUtilities.c:16:
../Include/Protocol/DevicePath.h: In function ?FileDevicePath?:
../Include/Protocol/DevicePath.h:51:9: note: destination object ?Type? of size 1
51 | UINT8 Type; ///< 0x01 Hardware Device Path.
| ^~~~
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Bob Feng <bob.c.feng@intel.com>
Upstream-Status: Backport [https://github.com/tianocore/edk2/commit/22130dcd98b4d4b76ac8d922adb4a2dbc86fa52c]
Signed-off-by: Steve Sakoman <steve@sakoman.com>
---
BaseTools/Source/C/DevicePath/GNUmakefile | 3 +++
1 file changed, 3 insertions(+)
diff --git a/BaseTools/Source/C/DevicePath/GNUmakefile b/BaseTools/Source/C/DevicePath/GNUmakefile
index 7ca08af9662d..b05d2bddfa68 100644
--- a/BaseTools/Source/C/DevicePath/GNUmakefile
+++ b/BaseTools/Source/C/DevicePath/GNUmakefile
@@ -13,6 +13,9 @@ OBJECTS = DevicePath.o UefiDevicePathLib.o DevicePathFromText.o DevicePathUtili
include $(MAKEROOT)/Makefiles/app.makefile
+# gcc 12 trips over device path handling
+BUILD_CFLAGS += -Wno-error=stringop-overflow
+
LIBS = -lCommon
ifeq ($(CYGWIN), CYGWIN)
LIBS += -L/lib/e2fsprogs -luuid
meta/recipes-core/ovmf/ovmf_git.bb
+1
View File
@@ -20,6 +20,7 @@ SRC_URI = "gitsm://github.com/tianocore/edk2.git;branch=master;protocol=https \
file://0001-Fix-VLA-parameter-warning.patch \
file://0001-Basetools-genffs-fix-gcc12-warning.patch \
file://0001-Basetools-lzmaenc-fix-gcc12-warning.patch \
file://0001-Basetools-turn-off-gcc12-warning.patch \
"
PV = "edk2-stable202008"