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package/gcc: disable libsanitizer with gcc 7.5 and glibc 2.31 toolchain

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libsanitizer in gcc 7.x fails to build with glibc 2.31. Fixing it would
require backporting an upstream commit:

    https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=4abc46b51af5751d657764d0c44b8a4aeed06302

However, the backport is not trivial, as there are a lot of conflicts.

Disable libsanitizer since the gcc 7.5 branch is now closed
(unmaintained) and it's not a trivial merge.

Signed-off-by: Romain Naour <romain.naour@smile.fr>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
This commit is contained in:
Romain Naour 2020-07-27 11:29:48 +02:00 committed by Yann E. MORIN
parent 93362ed129
commit 3df3021120
1 changed files with 10 additions and 0 deletions
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10
package/gcc/gcc.mk
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@ -119,6 +119,16 @@ else
HOST_GCC_COMMON_CONF_OPTS += --disable-libquadmath
endif
# Disable libsanitizer due to a build issue with gcc 7.5 and glibc 2.31.
# It would require to backport the following upstream commit
# https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=4abc46b51af5751d657764d0c44b8a4aeed06302
# but it conflict with gcc 7.5 libsanitizer code.
# Disable libsanitizer since the gcc 7.5 branch is now closed
# (unmaintained) and it's not a trivial merge.
ifeq ($(BR2_TOOLCHAIN_BUILDROOT_GLIBC)$(BR2_GCC_VERSION_7_X),yy)
HOST_GCC_COMMON_CONF_OPTS += --disable-libsanitizer
endif
# libsanitizer requires wordexp, not in default uClibc config. Also
# doesn't build properly with musl.
ifeq ($(BR2_TOOLCHAIN_BUILDROOT_UCLIBC)$(BR2_TOOLCHAIN_BUILDROOT_MUSL),y)