-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 OK, it's getting better with --enable-multilib, BOOT_CFLAGS="-m32" and XGCC_FLAGS_FOR_TARGET="-m32". But the internal xg++ still tries to pick up 64-bit libraries (see below). The question is how to make him switch to the */32/* multilib libraries path.
$ /home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILD/gcc-4.8-20130912/build/./prev-gcc/xg++ - -B/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILD/gcc-4.8-20130912/build/./prev-gcc/ - -B/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILDROOT/x86_64-unknown-linux-gnu/bin/ - -nostdinc++ - -B/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILD/gcc-4.8-20130912/build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs - -B/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILD/gcc-4.8-20130912/build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs - -I/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILD/gcc-4.8-20130912/build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu - -I/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILD/gcc-4.8-20130912/build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/include - -I/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILD/gcc-4.8-20130912/libstdc++-v3/libsupc++ - -L/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILD/gcc-4.8-20130912/build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs - -L/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILD/gcc-4.8-20130912/build/prev-x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs -m32 -gtoggle -DIN_GCC -fno-exceptions -fno-rtti - -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings - -Wcast-qual -Wmissing-format-attribute -pedantic -Wno-long-long - -Wno-variadic-macros -Wno-overlength-strings -DHAVE_CONFIG_H - -static-libstdc++ -static-libgcc -o gfortran gcc.o ggc-none.o gfortranspec.o driver-i386.o libcommon-target.a libcommon.a ../libcpp/libcpp.a ../libbacktrace/.libs/libbacktrace.a ../libiberty/libiberty.a ../libdecnumber/libdecnumber.a ../../gcc/vec.h:1303: error: undefined reference to 'operator new(unsigned int)' collect2: error: ld returned 1 exit status On 10/24/2013 07:51 AM, Dmitry Mikushin wrote: > Ian, > > I'm NOT using --build/--host/--target: > > + CC=gcc -m32 CXX=g++ -m32 FC=gfortran -m32 F77=gfortran -m32 > ../configure --enable-build-with-cxx - > --prefix=/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILDROOT/ > > - --program-prefix=kernelgen- --enable-languages=fortran,c++ > - > --with-mpfr-include=/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/INSTALL/include/ > > - - > --with-mpfr-lib=/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/INSTALL/lib > > - - > --with-gmp-include=/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/INSTALL/include/ > > - - > --with-gmp-lib=/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/INSTALL/lib > > - - > --with-mpc-include=/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/INSTALL/include/ > > - - > --with-mpc-lib=/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/INSTALL/lib > > - --enable-plugin --enable-gold=default --disable-ld > - > --with-ld=/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/INSTALL/bin/kernelgen-ld > > - --disable-multilib > - > --libdir=/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILDROOT/lib > > But I get: > > checking dynamic linker characteristics... configure: error: Link > tests are not allowed after GCC_NO_EXECUTABLES. > > Or actually even earlier than that there is > > configure:2934: checking for C compiler default output file name > configure:2956: > /home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILD/gcc-4.8-20130912/build/./prev-gcc/xgcc > > - - > -B/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILD/gcc-4.8-20130912/build/./prev-gcc/ > > - - > -B/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILDROOT/x86_64-unknown-linux-gnu/bin/ > > - - > -B/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILDROOT/x86_64-unknown-linux-gnu/bin/ > > - - > -B/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILDROOT/x86_64-unknown-linux-gnu/lib/ > > - -isystem > /home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILDROOT/x86_64-unknown-linux-gnu/include > > - -isystem > /home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILDROOT/x86_64-unknown-linux-gnu/sys-include > > - -m32 -gtoggle -static-libstdc++ -static-libgcc conftest.c >&5 > /home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/INSTALL/bin/kernelgen-ld: > > error: > /home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILD/gcc-4.8-20130912/build/./prev-gcc/crtbegin.o: > > incompatible target > /home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/INSTALL/bin/kernelgen-ld: > > error: > /home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILD/gcc-4.8-20130912/build/./prev-gcc/crtend.o: > > incompatible target > collect2: error: ld returned 1 exit status > > So, crtbegin.o/crtend.o are still ELF64. > > On 10/24/2013 07:07 AM, Ian Lance Taylor wrote: >> On Wed, Oct 23, 2013 at 9:59 PM, Dmitry Mikushin >> <dmi...@kernelgen.org> wrote: >>> Still all sorts of problems: >>> >>> with BOOT_CFLAGS="-m32" and CFLAGS_FOR_TARGET="-m32" I get a >>> number of compilation errors e.g. "error: unknown type name >>> 'UTItype'" with BOOT_CFLAGS="-m32" only I get "configure: >>> error: Link tests are not allowed after GCC_NO_EXECUTABLES." > > >> Should have said this last time: please reply to the mailing >> list, not just to me. Thanks. > >> I would not expect to see the "Link tests" error unless you are >> still using the --build/--host/--target configure arguments. I >> was suggesting that you omit those. > >> Ian > >>> 2013/10/24 Ian Lance Taylor <i...@google.com> >>>> >>>> >>>> On Oct 23, 2013 8:27 PM, "Dmitry Mikushin" >>>> <dmi...@kernelgen.org> wrote: >>>>> >>>>> Dear Ian, >>>>> >>>>> I started exactly with adding -m32 options as you >>>>> mentioned, but in this case the resulting toolchain >>>>> executables are ELF64. >>>> >>>> You'll probably also have to set BOOT_CFLAGS or something >>>> like that--see the install instructions. >>>> >>>> Ian >>>> >>>>> 2013/10/21 Ian Lance Taylor <i...@google.com> >>>>>> >>>>>> On Sun, Oct 20, 2013 at 10:04 PM, Dmitry Mikushin >>>>>> <dmi...@kernelgen.org> wrote: >>>>>>> >>>>>>> I'm trying to build a GCC toolchain (4.8-20130912 >>>>>>> snapshot) targeting x86-64 multiarch on i686 host, >>>>>>> using x86-64 builder: >>>>>>> >>>>>>> + cd >>>>>>> >>>>>>> /home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILD/gcc-4.8-20130912 >>>>>>> >>>>>>> > >>>>>>> + mkdir build >>>>>>> + cd build/ + CC=gcc -m32 CXX=g++ -m32 FC=gfortran >>>>>>> -m32 F77=gfortran -m32 ../configure >>>>>>> --enable-build-with-cxx - >>>>>>> >>>>>>> --prefix=/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILDROOT/ >>>>>>> >>>>>>> > >>>>>>> - - --program-prefix=kernelgen- --enable-languages=fortran,c++ >>>>>>> - >>>>>>> >>>>>>> --with-mpfr-include=/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/INSTALL/include/ >>>>>>> >>>>>>> > >>>>>>> - - >>>>>>> >>>>>>> --with-mpfr-lib=/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/INSTALL/lib >>>>>>> >>>>>>> > >>>>>>> - - >>>>>>> >>>>>>> --with-gmp-include=/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/INSTALL/include/ >>>>>>> >>>>>>> > >>>>>>> - - >>>>>>> >>>>>>> --with-gmp-lib=/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/INSTALL/lib >>>>>>> >>>>>>> > >>>>>>> - - >>>>>>> >>>>>>> --with-mpc-include=/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/INSTALL/include/ >>>>>>> >>>>>>> > >>>>>>> - - >>>>>>> >>>>>>> --with-mpc-lib=/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/INSTALL/lib >>>>>>> >>>>>>> > >>>>>>> - - --enable-plugin --enable-gold=default --disable-ld >>>>>>> - >>>>>>> >>>>>>> --with-ld=/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/INSTALL/bin/kernelgen-ld >>>>>>> >>>>>>> > >>>>>>> - - --disable-multilib >>>>>>> - >>>>>>> >>>>>>> --libdir=/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILDROOT/lib >>>>>>> >>>>>>> > >>>>>>> - - --build=x86_64-linux-gnu --host=i686-linux-gnu >>>>>>> --target=x86_64-linux-gnu >>>>>>> >>>>>>> + cd >>>>>>> >>>>>>> /home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/BUILD/gcc-4.8-20130912/build >>>>>>> >>>>>>> > >>>>>>> + CC=gcc -m32 CXX=g++ -m32 FC=gfortran -m32 F77=gfortran -m32 >>>>>>> >>>>>>> CPLUS_INCLUDE_PATH=/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/INSTALL/include:/home/marcusmae/rpmbuild/kernelgen/head_llvm192445_i686-linux-gnu_x86_64-linux-gnu_debug/INSTALL/include/libelf >>>>>>> >>>>>>> > >>>>>>> KERNELGEN_FALLBACK=1 make -j24 CFLAGS=-g -O0 CXXFLAGS=-g -O0 >>>>>>> >>>>>>> The build fails with >>>>>>> >>>>>>> cc -g -O2 -O2 -g -O2 -DIN_GCC >>>>>>> -DCROSS_DIRECTORY_STRUCTURE - -DNATIVE_CROSS -W -Wall >>>>>>> -Wno-narrowing -Wwrite-strings -Wcast-qual - >>>>>>> -Wstrict-prototypes -Wmissing-prototypes >>>>>>> -Wold-style-definition - -isystem ./include -fpic >>>>>>> -mlong-double-80 -g -DIN_LIBGCC2 - -fbuilding-libgcc >>>>>>> -fno-stack-protector -Dinhibit_libc -fpic - >>>>>>> -mlong-double-80 -I. -I. -I../.././gcc >>>>>>> -I../../../libgcc - -I../../../libgcc/. >>>>>>> -I../../../libgcc/../gcc - >>>>>>> -I../../../libgcc/../include >>>>>>> -I../../../libgcc/config/libbid - >>>>>>> -DENABLE_DECIMAL_BID_FORMAT -DHAVE_CC_TLS -DUSE_TLS -o >>>>>>> morestack_s.o - -MT morestack_s.o -MD -MP -MF >>>>>>> morestack_s.dep -DSHARED -c - -xassembler-with-cpp >>>>>>> ../../../libgcc/config/i386/morestack.S sed -e >>>>>>> 's/__PFX__/__/g' \ -e 's/__FIXPTPFX__/__/g' < >>>>>>> ../../../libgcc/libgcc-std.ver.in > libgcc-std.ver >>>>>>> dest=../.././gcc/include/tmp$$-unwind.h; \ cp unwind.h >>>>>>> $dest; \ chmod a+r $dest; \ sh >>>>>>> ../../../libgcc/../move-if-change $dest >>>>>>> ../.././gcc/include/unwind.h echo timestamp > >>>>>>> libgcc_tm.stamp cc1: error: unrecognized command line >>>>>>> option '-mlong-double-80' cc1: error: unrecognized >>>>>>> command line option '-mlong-double-80' cc1: error: >>>>>>> unrecognized command line option '-fbuilding-libgcc' >>>>>>> cc1: warning: unrecognized command line option >>>>>>> "-Wno-narrowing" [enabled by default] >>>>>>> >>>>>>> What's wrong here? >>>>>> >>>>>> You're trying to do a fairly complex Canadian Cross. To >>>>>> make this work you must first build the build-x-target >>>>>> and host-x-target compilers, and put them on your PATH. >>>>>> >>>>>> Basically "cc" in this command needs to be a >>>>>> build-x-target compiler built from the same sources that >>>>>> you are using to build your Canadian Cross. >>>>>> >>>>>> By the way I'm not sure exactly what you are trying to >>>>>> do but it might would work more easily if you omitted >>>>>> the --build, --host, and --target options from your >>>>>> configure line and simply set CC="gcc -m32" CXX="g++ >>>>>> -m32" when building. >>>>>> >>>>>> Ian >>>>> >>>>> >>> >>> > > -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) Comment: Using GnuPG with undefined - http://www.enigmail.net/ iQEcBAEBAgAGBQJSaN1QAAoJENwm3+sbf/pMGrQH/jHZvd/dschVHeF7+e1h3b5z SIjVhUsnvi+WJ/nsIghrDH9IFA2h085QWfLGTMqB2CrS5Ex+pJg9eioMhRShQ46b NPRBRTZcHqOwqtIHnWoLhmaq/9QOlSZIWMRaXHoaLS6iVJfmezRIhdgGwVxn1014 S2Jjw+DAQMxAYIjS2kH9u6I4avpiBeISp/gUxlSSMSzcTdQD+ynTQQryTxb3LkzM ASDU7h52Kf+0KN8ryx0KJmH7PJBCWrKfgfge9YL2M2BGgJXQYCvqMVcVPfB51Qff SNnFXnBr0YjmpSR1sE+2LWcDb+1sdFdsbZs+a95IXxjAFOz1ZDft6ZPdm7qIH2M= =32X2 -----END PGP SIGNATURE-----
