Ping.
Thanks,
On 2019年03月19日 16:44, mingli...@windriver.com wrote:
From: Mingli Yu <mingli...@windriver.com>
When DEBUG_BUILD = "1" added in local.conf, there
comes below build error when "bitbake gcc-sanitizers":
|
./../../../../../../../../work-shared/gcc-8.3.0-r0/gcc-8.3.0/libsanitizer/libbacktrace/../../libbacktrace/elf.c:
In function 'elf_is_symlink':
|
../../../../../../../../../work-shared/gcc-8.3.0-r0/gcc-8.3.0/libsanitizer/libbacktrace/../../libbacktrace/elf.c:772:21:
error: 'st.st_mode' may be used uninitialized in this function
[-Werror=maybe-uninitialized]
| return S_ISLNK (st.st_mode);
Initialize st_mode member to fix the above issue.
Signed-off-by: Mingli Yu <mingli...@windriver.com>
---
meta/recipes-devtools/gcc/gcc-8.3.inc | 1 +
.../0041-elf.c-initialize-st_mode-member.patch | 33 ++++++++++++++++++++++
2 files changed, 34 insertions(+)
create mode 100644
meta/recipes-devtools/gcc/gcc-8.3/0041-elf.c-initialize-st_mode-member.patch
diff --git a/meta/recipes-devtools/gcc/gcc-8.3.inc
b/meta/recipes-devtools/gcc/gcc-8.3.inc
index f7bf257..3501325 100644
--- a/meta/recipes-devtools/gcc/gcc-8.3.inc
+++ b/meta/recipes-devtools/gcc/gcc-8.3.inc
@@ -71,6 +71,7 @@ SRC_URI = "\
file://0038-Re-introduce-spe-commandline-options.patch \
file://0039-riscv-Disable-multilib-for-OE.patch \
file://0040-powerpc-powerpc64-Add-support-for-musl-ldso.patch \
+ file://0041-elf.c-initialize-st_mode-member.patch \
"
SRC_URI[md5sum] = "65b210b4bfe7e060051f799e0f994896"
SRC_URI[sha256sum] =
"64baadfe6cc0f4947a84cb12d7f0dfaf45bb58b7e92461639596c21e02d97d2c"
diff --git
a/meta/recipes-devtools/gcc/gcc-8.3/0041-elf.c-initialize-st_mode-member.patch
b/meta/recipes-devtools/gcc/gcc-8.3/0041-elf.c-initialize-st_mode-member.patch
new file mode 100644
index 0000000..8e80c4e
--- /dev/null
+++
b/meta/recipes-devtools/gcc/gcc-8.3/0041-elf.c-initialize-st_mode-member.patch
@@ -0,0 +1,33 @@
+From 960f3e1f104192ceb80a97e665fadffda5285aab Mon Sep 17 00:00:00 2001
+From: Mingli Yu <mingli...@windriver.com>
+Date: Tue, 19 Mar 2019 16:23:04 +0800
+Subject: [PATCH] elf.c: initialize st_mode member
+
+Initialize st_mode member to fix the below
+build failure when -Og included in compiler flag.
+|
./../../../../../../../../work-shared/gcc-8.3.0-r0/gcc-8.3.0/libsanitizer/libbacktrace/../../libbacktrace/elf.c:
In function 'elf_is_symlink':
+|
../../../../../../../../../work-shared/gcc-8.3.0-r0/gcc-8.3.0/libsanitizer/libbacktrace/../../libbacktrace/elf.c:772:21:
error: 'st.st_mode' may be used uninitialized in this function
[-Werror=maybe-uninitialized]
+ return S_ISLNK (st.st_mode);
+
+Upstream-Status:
Submitted[https://gcc.gnu.org/ml/gcc-patches/2019-03/msg00900.html]
+
+Signed-off-by: Mingli Yu <mingli...@windriver.com>
+---
+ libbacktrace/elf.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/libbacktrace/elf.c b/libbacktrace/elf.c
+index f4863f0..561bdc2 100644
+--- a/libbacktrace/elf.c
++++ b/libbacktrace/elf.c
+@@ -766,6 +766,7 @@ static int
+ elf_is_symlink (const char *filename)
+ {
+ struct stat st;
++ st.st_mode = 0;
+
+ if (lstat (filename, &st) < 0)
+ return 0;
+--
+2.7.4
+
--
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