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| author |  James Hilliard <james.hilliard1@gmail.com> | 2020-04-07 13:26:22 -0600 |
|---|---|---|
| committer |  Peter Korsgaard <peter@korsgaard.com> | 2020-04-08 16:33:49 +0200 |
| commit | d02c62fbde1b9abaffe12990e1cb5bfe532ef77b (patch) | |
| tree | 7006cb0d4f4a186659133eed49cefdc521917f1a | |
| parent | b9ae276e6e46e53673af2c6aa12e0289ecd98805 (diff) | |
| download | buildroot-d02c62fbde1b9abaffe12990e1cb5bfe532ef77b.tar.gz buildroot-d02c62fbde1b9abaffe12990e1cb5bfe532ef77b.tar.bz2 | |
package/gcc: pass -Wno-error to debug builds
gcc fails to build in debug build with debug optimisations:
BR2_x86_corei7=y
BR2_ENABLE_DEBUG=y
BR2_DEBUG_3=y
BR2_OPTIMIZE_G=y
BR2_TOOLCHAIN_BUILDROOT_GLIBC=y
BR2_TOOLCHAIN_BUILDROOT_CXX=y
which fails with:
../../../../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 has been unable to reproduce/fix properly, details:
https://gcc.gnu.org/legacy-ml/gcc-patches/2019-03/threads.html#00827
Upstream recommends passing -Wno-error as a workaround, see:
https://gcc.gnu.org/pipermail/gcc-patches/2019-April/519867.html
Reviewed-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
[yann.morin.1998@free.fr: add the reproducing defconfig]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
(cherry picked from commit dcaf6e75acb4d21c2c31c70b054dac8d18710fcb)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
| -rw-r--r-- | package/gcc/gcc.mk | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/package/gcc/gcc.mk b/package/gcc/gcc.mk index 5901624ea5..a6a122fa64 100644 --- a/package/gcc/gcc.mk +++ b/package/gcc/gcc.mk @@ -106,6 +106,11 @@ HOST_GCC_COMMON_CONF_ENV = \ GCC_COMMON_TARGET_CFLAGS = $(TARGET_CFLAGS) GCC_COMMON_TARGET_CXXFLAGS = $(TARGET_CXXFLAGS) +# used to fix ../../../../libsanitizer/libbacktrace/../../libbacktrace/elf.c:772:21: error: ‘st.st_mode’ may be used uninitialized in this function [-Werror=maybe-uninitialized] +ifeq ($(BR2_ENABLE_DEBUG),y) +GCC_COMMON_TARGET_CFLAGS += -Wno-error +endif + # Propagate options used for target software building to GCC target libs HOST_GCC_COMMON_CONF_ENV += CFLAGS_FOR_TARGET="$(GCC_COMMON_TARGET_CFLAGS)" HOST_GCC_COMMON_CONF_ENV += CXXFLAGS_FOR_TARGET="$(GCC_COMMON_TARGET_CXXFLAGS)" |