https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95712
Alexander Egorenkov <egorenar at linux dot ibm.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |UNCONFIRMED
Resolution|INVALID |---
--- Comment #6 from Alexander Egorenkov <egorenar at linux dot ibm.com> ---
Ok, i understand, therefore, i reproduced the problem without buildroot.
My steps:
$ mkdir compiler
$ cd compiler
$ tar xvjf gmp-6.1.0.tar.bz2
$ cd gmp-6.1.0
$ ./configure --prefix=$HOME/compiler/install --disable-shared
$ make -j81
$ make install
$ cd ..
$ tar xvjf mpfr-3.1.4.tar.bz2
$ cd mpfr-3.1.4
$ ./configure --prefix=$HOME/compiler/install --disable-shared
--with-gmp=$HOME/compiler/install
$ make -j81
$ make install
$ cd ..
$ tar xvzf mpc-1.0.3.tar.gz
$ cd mpc-1.0.3
$ ./configure --prefix=$HOME/compiler/install --disable-shared
--with-gmp=$HOME/compiler/install --with-mpfr=$HOME/compiler/install
$ make -j81
$ make install
$ cd ..
$ tar xvzf gcc-9.3.0.tar.xz
$ mkdir build-gcc
$ cd build-gcc
$ ../gcc-9.3.0/configure --prefix=$HOME/compiler/install --enable-shared
--disable-static \
--disable-gtk-doc --disable-gtk-doc-html --disable-doc
--disable-docs \
--disable-documentation --disable-debug
--with-xmlto=no --with-fop=no \
--disable-nls --disable-dependency-tracking
--target=s390x-buildroot-linux-gnu \
--enable-__cxa_atexit --with-gnu-ld --disable-libssp
--disable-multilib \
--disable-decimal-float
--with-gmp=$HOME/compiler/install \
--with-mpc=$HOME/compiler/install
--with-mpfr=$HOME/compiler/install \
--with-pkgversion="Buildroot 2020.08-git-g2d8407f8ab"
\
--with-bugurl="http://bugs.buildroot.net/";
--disable-libquadmath --enable-tls \
--enable-threads --without-isl --without-cloog
--with-arch="z196" \
--with-long-double-128 --enable-languages=c
--disable-shared --without-headers \
--disable-threads --with-newlib --disable-largefile
$ make -j81 gcc_cv_libc_provides_ssp=yes all-gcc all-target-libgcc
The above steps were executed manually w/o any buildroot infrastructure.
And i get the same problem, almost the same commands are executed by buildroot.
Again, xgcc is not being built and libgcc fails. I patched nothing, everything
was vanilla.
What i did notice, is that everything seems to work fine and the make commands
succeeds, if i drop "-j81" in the last step.
I did all these steps on a s390x machine with 80 cores, it is a highly parallel
machine.
So the issue seems to depend on it somehow, my guess is that maybe some
dependencies are not correctly
done in libgcc Makefile ? Another workaround i found is to split the last maske
command into 2 like this:
$ make -j81 all-gcc
$ make -j81 all-target-libgcc
This seems to fix it also.
I'm ready to do more test if required. I really want to fix it, it is very
annoying and blocking me.
Regards
