https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70211
Bug ID: 70211
Summary: gcc-6-20160306 fails to build on ARM Linux with in
tree ISL due to undefined GMP symbol
__gmpn_invert_limb in isl_test
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
Assignee: unassigned at gcc dot gnu.org
Reporter: andrewm.roberts at sky dot com
Target Milestone: ---
Build of gcc-6-20160306 fails on ARM Linux when building in tree ISL due to
undefined GMP symbol __gmpn_invert_limb when building isl_test
This failure dates back to at least 2013 as Linux From Scratch references it
here:
https://sourceware.org/bugzilla/attachment.cgi?id=6807
# PiLFS Build Script SVN-20130102 v1.0
...
# Workaround for a problem introduced with GMP 5.1.0.
# If configured by gcc with the "none" host & target, it will result in
undefined references to '__gmpn_invert_limb' during linking.
# Should be fixed by next version of gcc, but let me know if you have any more
ideas on this.
sed -i 's/none-/armv6l-/' Makefile
Make Error:
...
/bin/sh ./libtool --tag=CC --mode=link armv7l-unknown-linux-gnueabihf-gcc
-O2 -march=armv7-a -pipe -static-libstdc++ -static-libgcc -o isl_test
isl_test.o libisl.la /home/alarm/gcc/gcc-build/./gmp/libgmp.la
libtool: link: armv7l-unknown-linux-gnueabihf-gcc -O2 -march=armv7-a -pipe
-static-libstdc++ -static-libgcc -o isl_test isl_test.o ./.libs/libisl.a
/home/alarm/gcc/gcc-build/./gmp/.libs/libgmp.a
/home/alarm/gcc/gcc-build/./gmp/.libs/libgmp.a(divrem_1.o): In function
`__gmpn_divrem_1':
divrem_1.c:(.text+0xb0): undefined reference to `__gmpn_invert_limb'
divrem_1.c:(.text+0x1d4): undefined reference to `__gmpn_invert_limb'
/home/alarm/gcc/gcc-build/./gmp/.libs/libgmp.a(mod_1.o): In function
`__gmpn_mod_1':
mod_1.c:(.text+0x60): undefined reference to `__gmpn_invert_limb'
mod_1.c:(.text+0x170): undefined reference to `__gmpn_invert_limb'
/home/alarm/gcc/gcc-build/./gmp/.libs/libgmp.a(div_q.o): In function
`__gmpn_div_q':
div_q.c:(.text+0x174): undefined reference to `__gmpn_invert_limb'
/home/alarm/gcc/gcc-build/./gmp/.libs/libgmp.a(div_q.o):div_q.c:(.text+0x460):
more undefined references to `__gmpn_invert_limb' follow
collect2: error: ld returned 1 exit status
Makefile:1276: recipe for target 'isl_test' failed
The failure is due to --host=none-... and --target=none-... appearing the
gcc-build/gcc/Makefile for the configure-gmp target after configure.
This happens on (at least) armv6l (Raspberry Pi) and armv7l (Raspberry Pi 3)
Editing the makefile to replace 'none-' with 'armv6l-' or 'armv7l-' allows the
build to complete.
Built Using:
tar -xjf gcc-6-20160306.tar.bz2
mv gcc-6-20160306 gcc-6.0.0
cd gcc-6.0.0
# From ftp://gcc.gnu.org/pub/gcc/infrastructure/
tar -xjf isl-0.16.1.tar.bz
ln -sf isl-0.16.1 isl
cd isl
# This version of ISL is using older version of automake, needs reconfigure
autoreconf
cd ..
# From MPFR website
tar -xjf mpfr-3.1.4.tar.bz2
ln -sf mpfr-3.1.4 mpfr
# From MPC website
tar -xzf mpc-1.0.3.tar.gz
ln -sf mpc-1.0.3 mpc
# From GMP website
tar -xjf gmp-6.1.0.tar.bz2
ln -sf gmp-6.1.0 gmp
cd ..
mkdir gcc-build
cd gcc-build
../gcc-6.0.0/configure --prefix=/usr/local/gcc-6.0.0 --program-suffix= \
--enable-languages=c,c++,fortran --enable-shared --enable-threads=posix \
--with-system-zlib --with-isl --enable-__cxa_atexit \
--disable-libunwind-exceptions --enable-clocale=gnu --disable-libstdcxx-pch \
--disable-libssp --enable-gnu-unique-object --enable-linker-build-id \
--enable-lto --enable-plugin --enable-install-libiberty \
--with-linker-hash-style=gnu --enable-gnu-indirect-function \
--disable-multilib --disable-werror --enable-checking=release \
--host=armv7l-unknown-linux-gnueabihf --build=armv7l-unknown-linux-gnueabihf \
--target=armv7l-unknown-linux-gnueabihf --with-arch=armv7-a \
--with-float=hard --with-fpu=vfpv3-d16 --disable-bootstrap
# then run make
Resulting Makefile:
...
.PHONY: configure-gmp maybe-configure-gmp
maybe-configure-gmp:
maybe-configure-gmp: configure-gmp
configure-gmp:
...
$(SHELL) \
$$s/$$module_srcdir/configure \
--srcdir=$${topdir}/$$module_srcdir \
$(HOST_CONFIGARGS) --build=${build_alias}
--host=none-${host_vendor}-$
{host_os} \
--target=none-${host_vendor}-${host_os} --disable-shared LEX="touch
le
x.yy.c" \
|| exit 1
...
The --host=none- --target=none- cause the build of intree ISL to fail:
Built on Arch Linux Arm:
uname -a
Linux alarmpi 4.1.19-4-ARCH #1 SMP Wed Mar 9 18:23:02 MST 2016 armv7l GNU/Linux
Using tools:
automake: 1.15-1
autoconf 2.69-2
libtool: 2.4.6-4
binutils: 2.26-3
m4 1.4.17-1
Using in tree libraries:
isl-0.16.1 (need to run autoreconf in isl directory before configuring)
mpfr-3.1.4
mpc-1.0.3
gmp-6.1.0
Host gcc:
gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/armv7l-unknown-linux-gnueabihf/5.3.0/lto-wrapper
Target: armv7l-unknown-linux-gnueabihf
Configured with: /build/gcc/src/gcc-5-20160209/configure --prefix=/usr
--libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man
--infodir=/usr/share/info
--with-bugurl=https://github.com/archlinuxarm/PKGBUILDs/issues
--enable-languages=c,c++,fortran,go,lto,objc,obj-c++ --enable-shared
--enable-threads=posix --with-system-zlib --with-isl --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-clocale=gnu --disable-libstdcxx-pch
--disable-libssp --enable-gnu-unique-object --enable-linker-build-id
--enable-lto --enable-plugin --enable-install-libiberty
--with-linker-hash-style=gnu --enable-gnu-indirect-function --disable-multilib
--disable-werror --enable-checking=release
--host=armv7l-unknown-linux-gnueabihf --build=armv7l-unknown-linux-gnueabihf
--with-arch=armv7-a --with-float=hard --with-fpu=vfpv3-d16
Thread model: posix
gcc version 5.3.0 (GCC)
