https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70464

--- Comment #10 from ge...@schorsch-tech.de ---
Components to build the "aarch64-to-aarch64" gcc/g++:
-----------------------------------------------------
sha1sum + filename
f10c64e92d9c72ee428df3feaf349c4ecb2493bd  binutils-2.25.tar.gz
2dc70313e8e2c6610b856d627bce9c9c3f848077  cloog-0.18.1.tar.gz
39ebff8a873181728b02db3689215557628eed9d  gcc-5.3.0.tar.gz
5be95334f197121d8b351059a1c6518305d88e2a  glibc-2.22.tar.xz
1aaf78358ab9e34aeb61f3ae08174ee9118ece98  gmp-6.0.0a.tar.xz
c5a2b201bf05229647e73203c0bf2d9679d4d21f  isl-0.16.1.tar.bz2
18d8e415f57a1fe4322faec441e45b6d2383b7d1  linux-4.5.tar.xz
5072d82ab50ec36cc8c0e320b5c377adb48abe70  mpc-1.0.2.tar.gz
cedc0055d55b6ee4cd17e1e6119ed412520ff81a  mpfr-3.1.4.tar.xz
------------------------------------------------------


Used x86_64-to-aarch64 compiler (created with crossdev 20150716):
----------------------------------------------------------------
georg@hammerhead ~ $ whereis aarch64-none-linux-gnu-gcc
aarch64-none-linux-gnu-gcc: /usr/bin/aarch64-none-linux-gnu-gcc
georg@hammerhead ~ $ file /usr/bin/aarch64-none-linux-gnu-gcc
/usr/bin/aarch64-none-linux-gnu-gcc: ELF 64-bit LSB executable, x86-64, version
1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for
GNU/Linux 2.6.32, stripped

georg@hammerhead ~ $ /usr/bin/aarch64-none-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/usr/x86_64-pc-linux-gnu/aarch64-none-linux-gnu/gcc-bin/5.3.0/aarch64-none-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/aarch64-none-linux-gnu/5.3.0/lto-wrapper
Target: aarch64-none-linux-gnu
Configured with:
/var/tmp/portage/cross-aarch64-none-linux-gnu/gcc-5.3.0/work/gcc-5.3.0/configure
--host=x86_64-pc-linux-gnu --target=aarch64-none-linux-gnu
--build=x86_64-pc-linux-gnu --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/aarch64-none-linux-gnu/gcc-bin/5.3.0
--includedir=/usr/lib/gcc/aarch64-none-linux-gnu/5.3.0/include
--datadir=/usr/share/gcc-data/aarch64-none-linux-gnu/5.3.0
--mandir=/usr/share/gcc-data/aarch64-none-linux-gnu/5.3.0/man
--infodir=/usr/share/gcc-data/aarch64-none-linux-gnu/5.3.0/info
--with-gxx-include-dir=/usr/lib/gcc/aarch64-none-linux-gnu/5.3.0/include/g++-v5
--with-python-dir=/share/gcc-data/aarch64-none-linux-gnu/5.3.0/python
--enable-languages=c,c++,fortran --enable-obsolete --enable-secureplt
--disable-werror --with-system-zlib --enable-nls --without-included-gettext
--enable-checking=release --with-bugurl=https://bugs.gentoo.org/
--with-pkgversion='Gentoo 5.3.0 p1.0, pie-0.6.5' --enable-libstdcxx-time
--enable-poison-system-directories --with-sysroot=/usr/aarch64-none-linux-gnu
--disable-bootstrap --enable-__cxa_atexit --enable-clocale=gnu
--disable-multilib --disable-altivec --disable-fixed-point --disable-libgcj
--enable-libgomp --disable-libmudflap --disable-libssp --disable-libcilkrts
--enable-lto --without-isl --enable-libsanitizer
Thread model: posix
gcc version 5.3.0 (Gentoo 5.3.0 p1.0, pie-0.6.5) 


Configure line for the "aarch64-to-aarch64" gcc:
-------------------------------------------------
../gcc-5.3.0/configure --prefix=/opt/cross --host=aarch64-none-linux-gnu
--target=aarch64-none-linux-gnu --enable-languages=c,c++ --disable-multilib

Error message:
--------------
libtool: compile:  aarch64-none-linux-gnu-c++
-B/home/georg/Dokumente/Entwicklung/rpi3/src/gcc/build-gcc/aarch64-none-linux-gnu/libstdc++-v3/src/.libs
-B/home/georg/Dokumente/Entwicklung/rpi3/src/gcc/build-gcc/aarch64-none-linux-gnu/libstdc++-v3/libsupc++/.libs
-DHAVE_CONFIG_H -I. -I../../../gcc-5.3.0/libitm
-I../../../gcc-5.3.0/libitm/config/linux/aarch64
-I../../../gcc-5.3.0/libitm/config/linux
-I../../../gcc-5.3.0/libitm/config/aarch64
-I../../../gcc-5.3.0/libitm/config/posix
-I../../../gcc-5.3.0/libitm/config/generic -I../../../gcc-5.3.0/libitm
-ftls-model=initial-exec -Wall -pthread -Werror -std=gnu++0x -funwind-tables
-fno-exceptions -fno-rtti -fabi-version=4 -g -O2 -D_GNU_SOURCE -MT util.lo -MD
-MP -MF .deps/util.Tpo -c ../../../gcc-5.3.0/libitm/util.cc  -fPIC -DPIC -o
.libs/util.o
In file included from /usr/aarch64-none-linux-gnu/usr/include/stdio.h:936:0,
                 from ../../../gcc-5.3.0/libitm/util.cc:27:
/usr/aarch64-none-linux-gnu/usr/include/bits/stdio2.h: In function 'void
GTM::gtm_verror(const char*, va_list)':
/usr/aarch64-none-linux-gnu/usr/include/bits/stdio2.h:124:1: error: inlining
failed in call to always_inline 'int vfprintf(FILE*, const char*,
__gnuc_va_list)': function body can be overwritten at link time
 vfprintf (FILE *__restrict __stream,
 ^
../../../gcc-5.3.0/libitm/util.cc:35:31: error: called from here
   vfprintf (stderr, fmt, list);
                               ^
Makefile:517: recipe for target 'util.lo' failed


As the aarch64-none-linux-gnu-g++ executable got built but the libstdc++3 not,
i copied the "partly done" destination folder to the raspberry pi 3 and here is
the info about aarch64-none-linux-gnu-gcc and aarch64-none-linux-gnu-g++ from
the target:
--------------
Pi_3 64_bit ~ # gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/opt/cross/libexec/gcc/aarch64-none-linux-gnu/5.3.0/lto-wrapper
Target: aarch64-none-linux-gnu
Configured with: ../gcc-5.3.0/configure --prefix=/opt/cross
--host=aarch64-none-linux-gnu --target=aarch64-none-linux-gnu
--enable-languages=c,c++ --disable-multilib
Thread model: posix
gcc version 5.3.0 (GCC) 
Pi_3 64_bit ~ # g++ -v
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/opt/cross/libexec/gcc/aarch64-none-linux-gnu/5.3.0/lto-wrapper
Target: aarch64-none-linux-gnu
Configured with: ../gcc-5.3.0/configure --prefix=/opt/cross
--host=aarch64-none-linux-gnu --target=aarch64-none-linux-gnu
--enable-languages=c,c++ --disable-multilib
Thread model: posix
gcc version 5.3.0 (GCC) 
Pi_3 64_bit ~ #

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