On 2019年04月09日 11:53, Khem Raj wrote:
On Mon, Apr 8, 2019 at 7:32 PM <[email protected]> wrote:
From: Mingli Yu <[email protected]>
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);
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.
Not particular to this change but in general if a package says that it
does not support -Og
then we are just going to get into more and more untested grounds
especially during runtime
so I wonder how useful it will be to use -Og for such packages or any
other non supported
combination for that matter.
Hi Khem,
Any other suggestion to silence the gcc-sanitizers build error when
DEBUG_BUILD is enabled?
Or just keep the logic DEBUG_OPTIMIZATION_append = " -Wno-error" as my
patch stated?
Thanks,
Signed-off-by: Mingli Yu <[email protected]>
---
meta/recipes-devtools/gcc/gcc-sanitizers.inc | 3 +++
1 file changed, 3 insertions(+)
diff --git a/meta/recipes-devtools/gcc/gcc-sanitizers.inc
b/meta/recipes-devtools/gcc/gcc-sanitizers.inc
index e5e8452..8b1d1c9 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"
--
2.7.4
--
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