qemu/Ignore-spurious-GCC-12-warning.patch

From: =?UTF-8?q?Martin=20Li=C5=A1ka?= <Martin Liška>
Date: Tue, 22 Mar 2022 11:40:17 +0100
Subject: Ignore spurious GCC 12 warning
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Git-commit: 0000000000000000000000000000000000000000
References: bsc#1197018

Building with GCC 12 fails producing errors. This is an example (but
there are others):

[ 1051s] Sdk/C/LzmaEnc.c: In function 'LzmaEnc_CodeOneMemBlock':
[ 1051s] Sdk/C/LzmaEnc.c:2641:19: error: storing the address of local
variable 'outStream' in '*p.rc.outStream' [-Werror=dangling-pointer=]
[ 1051s]  2641 |   p->rc.outStream = &outStream.vt;
[ 1051s]       |   ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
[ 1051s] Sdk/C/LzmaEnc.c:2624:28: note: 'outStream' declared here
[ 1051s]  2624 |   CLzmaEnc_SeqOutStreamBuf outStream;
[ 1051s]       |                            ^~~~~~~~~
[ 1051s] Sdk/C/LzmaEnc.c:2624:28: note: 'pp' declared here

Which is a false positive reported by GCC compiler:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98503

Work it around by silencing the warning.

Signed-off-by: Martin Liška <martin.liska@suse.com>
Signed-off-by: Dario Faggioli <dfaggioli@suse.com>
---
 BaseTools/Source/C/DevicePath/DevicePathUtilities.c | 4 ++++
 BaseTools/Source/C/GenFfs/GenFfs.c                  | 4 ++++
 BaseTools/Source/C/GenSec/GenSec.c                  | 4 ++++
 BaseTools/Source/C/LzmaCompress/Sdk/C/LzmaEnc.c     | 4 ++++
 4 files changed, 16 insertions(+)

diff --git a/roms/edk2/BaseTools/Source/C/DevicePath/DevicePathUtilities.c b/roms/edk2/BaseTools/Source/C/DevicePath/DevicePathUtilities.c
index 2ffefa8ceeeff9a1d0504ad71918..c9fb4329843a8fc34e596b506571 100644
--- a/roms/edk2/BaseTools/Source/C/DevicePath/DevicePathUtilities.c
+++ b/roms/edk2/BaseTools/Source/C/DevicePath/DevicePathUtilities.c
@@ -16,6 +16,10 @@
 #include "UefiDevicePathLib.h"
 #include <Protocol/DevicePathUtilities.h>
 
+#if __GNUC__ >= 12
+#  pragma GCC diagnostic ignored "-Wstringop-overflow"
+#endif
+
 //
 // Template for an end-of-device path node.
 //
diff --git a/roms/edk2/BaseTools/Source/C/GenFfs/GenFfs.c b/roms/edk2/BaseTools/Source/C/GenFfs/GenFfs.c
index 949025c333251bc5776159a6c535..be55a529743494677f8515906c6c 100644
--- a/roms/edk2/BaseTools/Source/C/GenFfs/GenFfs.c
+++ b/roms/edk2/BaseTools/Source/C/GenFfs/GenFfs.c
@@ -36,6 +36,10 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #define UTILITY_MAJOR_VERSION   0
 #define UTILITY_MINOR_VERSION   1
 
+#if __GNUC__ >= 12
+#  pragma GCC diagnostic ignored "-Wuse-after-free"
+#endif
+
 STATIC CHAR8 *mFfsFileType[] = {
   NULL,                                   // 0x00
   "EFI_FV_FILETYPE_RAW",                  // 0x01
diff --git a/roms/edk2/BaseTools/Source/C/GenSec/GenSec.c b/roms/edk2/BaseTools/Source/C/GenSec/GenSec.c
index d54a4f9e0a7d67b7c8494ab37011..fb40ad36584c1cd53cc7ca4a9d4f 100644
--- a/roms/edk2/BaseTools/Source/C/GenSec/GenSec.c
+++ b/roms/edk2/BaseTools/Source/C/GenSec/GenSec.c
@@ -37,6 +37,10 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 #define UTILITY_MAJOR_VERSION   0
 #define UTILITY_MINOR_VERSION   1
 
+#if __GNUC__ >= 12
+#  pragma GCC diagnostic ignored "-Wuse-after-free"
+#endif
+
 STATIC CHAR8      *mSectionTypeName[] = {
   NULL,                                 // 0x00 - reserved
   "EFI_SECTION_COMPRESSION",            // 0x01
diff --git a/roms/edk2/BaseTools/Source/C/LzmaCompress/Sdk/C/LzmaEnc.c b/roms/edk2/BaseTools/Source/C/LzmaCompress/Sdk/C/LzmaEnc.c
index 4e9b499f8d80dc4d6bc13515e794..ab9b7cc34f69bceb74c454ce5032 100644
--- a/roms/edk2/BaseTools/Source/C/LzmaCompress/Sdk/C/LzmaEnc.c
+++ b/roms/edk2/BaseTools/Source/C/LzmaCompress/Sdk/C/LzmaEnc.c
@@ -40,6 +40,10 @@ static unsigned g_STAT_OFFSET = 0;
 
 #define REP_LEN_COUNT 64
 
+#if __GNUC__ >= 12
+#  pragma GCC diagnostic ignored "-Wdangling-pointer"
+#endif
+
 void LzmaEncProps_Init(CLzmaEncProps *p)
 {
   p->level = 5;