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| author |   Mingli Yu <Mingli.Yu@windriver.com> | 2019-04-22 16:41:32 +0800 |
|---|---|---|
| committer |   Richard Purdie <richard.purdie@linuxfoundation.org> | 2019-04-23 23:30:10 +0100 |
| commit | d8d657f082d4a86f93ce810e5d99eb5c93333d8a (patch) | |
| tree | c6ce266360944c1f3ce3029e60345fdcecb81c9d /meta/recipes-devtools | |
| parent | 48f1521de8d16971e8021d7bf551f0b88f392f43 (diff) | |
| download | openembedded-core-contrib-d8d657f082d4a86f93ce810e5d99eb5c93333d8a.tar.gz | |
gcc-sanitizers: fix -Werror=maybe-uninitialized issue
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);
After commit[16643b0322 bitbake.conf: Use -Og in DEBUG_OPTIMIZATION]
introduced, "-Og" added to compiler when debug
build enabled.
Per https://gcc.gnu.org/ml/gcc-patches/2019-04/msg00315.html,
the gcc upstream thinks the warning is a false
positive and suggests to use -O2 rather than -Og
or -O1 when compiling that file, so pass -Wno-error
to compiler when -Og is used to silence the error.
Signed-off-by: Mingli Yu <Mingli.Yu@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-devtools')
| -rw-r--r-- | meta/recipes-devtools/gcc/gcc-sanitizers.inc | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-sanitizers.inc b/meta/recipes-devtools/gcc/gcc-sanitizers.inc index e5e84526fa..8b1d1c94bf 100644 --- a/meta/recipes-devtools/gcc/gcc-sanitizers.inc +++ b/meta/recipes-devtools/gcc/gcc-sanitizers.inc @@ -45,6 +45,9 @@ INHIBIT_DEFAULT_DEPS = "1" ALLOW_EMPTY_${PN} = "1" DEPENDS = "gcc-runtime virtual/${TARGET_PREFIX}gcc" +# used to fix ../../../../../../../../../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] +DEBUG_OPTIMIZATION_append = " -Wno-error" + BBCLASSEXTEND = "nativesdk" PACKAGES = "${PN} ${PN}-dbg" |