[Bug target/64231] SIGSEGV building glibc on aarch64-linux-gnu from r217852

[sandra at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64231

--- Comment #4 from Sandra Loosemore <sandra at codesourcery dot com> ---
In case it's also relevant, my GCC was configured with:

Configured with: /scratch/sandra/aarch64-fsf/src/gcc-mainline/configure
--build=i686-pc-linux-gnu --host=i686-pc-linux-gnu --target=aarch64-linux-gnu
--enable-threads --disable-libmudflap --disable-libssp --disable-libstdcxx-pch
--with-march=armv8-a --disable-libsanitizer --with-gnu-as --with-gnu-ld
--enable-languages=c,c++ --enable-shared --enable-lto --enable-symvers=gnu
--enable-__cxa_atexit --with-glibc-version=2.21 --disable-nls
--prefix=/scratch/sandra/aarch64-fsf/install --disable-shared --disable-threads
--disable-libssp --disable-libgomp --without-headers --with-newlib
--disable-decimal-float --disable-libffi --disable-libquadmath --disable-libitm
--disable-libatomic --enable-languages=c
--with-sysroot=/scratch/sandra/aarch64-fsf/install/aarch64-linux-gnu/libc
--with-gmp=/scratch/sandra/aarch64-fsf/obj/pkg-mainline-0-aarch64-linux-gnu/fsf-mainline-0-aarch64-linux-gnu.extras/host-libs-i686-pc-linux-gnu/usr
--with-mpfr=/scratch/sandra/aarch64-fsf/obj/pkg-mainline-0-aarch64-linux-gnu/fsf-mainline-0-aarch64-linux-gnu.extras/host-libs-i686-pc-linux-gnu/usr
--with-mpc=/scratch/sandra/aarch64-fsf/obj/pkg-mainline-0-aarch64-linux-gnu/fsf-mainline-0-aarch64-linux-gnu.extras/host-libs-i686-pc-linux-gnu/usr
--with-host-libstdcxx='-static-libgcc -Wl,-Bstatic,-lstdc++,-Bdynamic -lm'
--with-isl=/scratch/sandra/aarch64-fsf/obj/pkg-mainline-0-aarch64-linux-gnu/fsf-mainline-0-aarch64-linux-gnu.extras/host-libs-i686-pc-linux-gnu/usr
--with-cloog=/scratch/sandra/aarch64-fsf/obj/pkg-mainline-0-aarch64-linux-gnu/fsf-mainline-0-aarch64-linux-gnu.extras/host-libs-i686-pc-linux-gnu/usr
--disable-libgomp --disable-libitm --disable-libatomic --disable-libssp
--enable-poison-system-directories
--with-build-time-tools=/scratch/sandra/aarch64-fsf/install/aarch64-linux-gnu/bin
--with-build-time-tools=/scratch/sandra/aarch64-fsf/install/aarch64-linux-gnu/bin
SED=sed
Thread model: single
gcc version 5.0.0 20141120 (experimental) (GCC)