[ECOS] NIOS2 toolchain build failure under Cygwin

[Grant Edwards <grante at visi dot com>]

I'm trying to build a NIOS2 toolchain using the procedure found
on the eCos web site.  Everything builds fine under Linux, but
under Cygwin, I can't get gcc to build.  Specifically, the
build of libstdc++ fails.

Here's how I'm building gcc:

   TARGET=nios2-elf
   DEST=/opt/gnu
   
   rm -rf src
   tar xjvf nios2_60_gnusrc_win.tar.bz2
   
   function build-gcc
   {
   mv src/newlib/newlib src/gcc
   mv src/newlib/libgloss src/gcc
   cp src/gcc/newlib/configure.host.normalc src/gcc/newlib/configure.host
   rm -rf gcc-build
   mkdir gcc-build
   pushd gcc-build
   mkdir -p gcc/doc
   cp -p ../src/gcc/gcc/doc/*.1 gcc/doc
   ../src/gcc/configure --target=$TARGET \
           --prefix=$DEST --enable-languages=c,c++ \
           --with-gnu-as --with-gnu-ld --with-newlib \
           --with-gxx-include-dir=$DEST/$TARGET/include \
   	--disable-multilib
           -v 2>&1 | tee configure.out 
   
   PATH=$PATH:$DEST/bin  make -w all 2>&1 | tee make.out
   PATH=$PATH:$DEST/bin  make -w install 2>&1 | tee install.out
   popd
   }
   
   build-gcc

[I had to disable multilib to get the make to run in a
reasonable amount of time.  If I leave multilib enabled, it
takes about 30 hours for the build to get to the point where it
fails.]

During the "make -w", there's an internal compiler failure when
libstdc++ .h files are begin pre-compiled.  Has anybody run
into a problem like this before?  I looked at the line in the
.h file where gcc segfaults, and I don't see anything wrong.

make.out excerpt:

   make: Entering directory `/home/Grant/nios/gcc-build'
   Configuring in intl
   creating cache ./config.cache
   checking for GNU ld... /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../../i686-pc-cygwin/bin/ld.exe
   
   [...]
   
   make[1]: Entering directory `/home/Grant/nios/gcc-build/nios2-elf/libstdc++-v3/include'
   sed -e '/^#/s/\([ABCDEFGHIJKLMNOPQRSTUVWXYZ_][ABCDEFGHIJKLMNOPQRSTUVWXYZ_]*\)/_GLIBCXX_\1/g' \
       -e 's/_GLIBCXX_SUPPORTS_WEAK/__GXX_WEAK__/g' \
       -e 's,^#include "\(.*\)",#include <bits/\1>,g' \
       < /home/Grant/nios/src/gcc/libstdc++-v3/../gcc/gthr.h > nios2-elf/bits/gthr.h
   sed -e 's/\(UNUSED\)/_GLIBCXX_\1/g' \
       -e 's/\(GCC[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]*_H\)/_GLIBCXX_\1/g' \
       < /home/Grant/nios/src/gcc/libstdc++-v3/../gcc/gthr-single.h > nios2-elf/bits/gthr-single.h
   sed -e 's/\(UNUSED\)/_GLIBCXX_\1/g' \
       -e 's/\(GCC[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]*_H\)/_GLIBCXX_\1/g' \
       -e 's/SUPPORTS_WEAK/__GXX_WEAK__/g' \
       -e 's/\([ABCDEFGHIJKLMNOPQRSTUVWXYZ_]*USE_WEAK\)/_GLIBCXX_\1/g' \
       < /home/Grant/nios/src/gcc/libstdc++-v3/../gcc/gthr-posix.h > nios2-elf/bits/gthr-posix.h
   sed -e 's/\(UNUSED\)/_GLIBCXX_\1/g' \
       -e 's/\(GCC[ABCDEFGHIJKLMNOPQRSTUVWXYZ_]*_H\)/_GLIBCXX_\1/g' \
       -e 's/SUPPORTS_WEAK/__GXX_WEAK__/g' \
       -e 's/\([ABCDEFGHIJKLMNOPQRSTUVWXYZ_]*USE_WEAK\)/_GLIBCXX_\1/g' \
       -e 's,^#include "\(.*\)",#include <bits/\1>,g' \
       < /home/Grant/nios/src/gcc/libstdc++-v3/../gcc/gthr-single.h > nios2-elf/bits/gthr-default.h
   touch ./nios2-elf/bits/stdc++.h; \
   if [ ! -d "./nios2-elf/bits/stdc++.h.gch" ]; then \
     mkdir -p ./nios2-elf/bits/stdc++.h.gch; \
   fi; \
   /home/Grant/nios/gcc-build/gcc/xgcc -shared-libgcc -B/home/Grant/nios/gcc-build/gcc/ -nostdinc++ -L/home/Grant/nios/gcc-build/nios2-elf/libstdc++-v3/src -L/home/Grant/nios/gcc-build/nios2-elf/libstdc++-v3/src/.libs -nostdinc -B/home/Grant/nios/gcc-build/nios2-elf/newlib/ -isystem /home/Grant/nios/gcc-build/nios2-elf/newlib/targ-include -isystem /home/Grant/nios/src/gcc/newlib/libc/include -B/opt/gnu/nios2-elf/bin/ -B/opt/gnu/nios2-elf/lib/ -isystem /opt/gnu/nios2-elf/include -isystem /opt/gnu/nios2-elf/sys-include -Winvalid-pch -Wno-deprecated -x c++-header -g -O2 -I/home/Grant/nios/gcc-build/nios2-elf/libstdc++-v3/include/nios2-elf -I/home/Grant/nios/gcc-build/nios2-elf/libstdc++-v3/include -I/home/Grant/nios/src/gcc/libstdc++-v3/libsupc++ /home/Grant/nios/src/gcc/libstdc++-v3/include/stdc++.h -O0 -g -o ./nios2-elf/bits/stdc++.h.gch/O0g; \
   /home/Grant/nios/gcc-build/gcc/xgcc -shared-libgcc -B/home/Grant/nios/gcc-build/gcc/ -nostdinc++ -L/home/Grant/nios/gcc-build/nios2-elf/libstdc++-v3/src -L/home/Grant/nios/gcc-build/nios2-elf/libstdc++-v3/src/.libs -nostdinc -B/home/Grant/nios/gcc-build/nios2-elf/newlib/ -isystem /home/Grant/nios/gcc-build/nios2-elf/newlib/targ-include -isystem /home/Grant/nios/src/gcc/newlib/libc/include -B/opt/gnu/nios2-elf/bin/ -B/opt/gnu/nios2-elf/lib/ -isystem /opt/gnu/nios2-elf/include -isystem /opt/gnu/nios2-elf/sys-include -Winvalid-pch -Wno-deprecated -x c++-header -g -O2 -I/home/Grant/nios/gcc-build/nios2-elf/libstdc++-v3/include/nios2-elf -I/home/Grant/nios/gcc-build/nios2-elf/libstdc++-v3/include -I/home/Grant/nios/src/gcc/libstdc++-v3/libsupc++ /home/Grant/nios/src/gcc/libstdc++-v3/include/stdc++.h -O2 -g -o ./nios2-elf/bits/stdc++.h.gch/O2g;
   /home/Grant/nios/src/gcc/libstdc++-v3/include/stdc++.h:82: internal compiler error: Segmentation fault
   Please submit a full bug report,
   with preprocessed source if appropriate.
   See <URL:http://www.altera.com/mysupport> for instructions.
   /home/Grant/nios/src/gcc/libstdc++-v3/include/stdc++.h:82: internal compiler error: Segmentation fault
   Please submit a full bug report,
   with preprocessed source if appropriate.
   See <URL:http://www.altera.com/mysupport> for instructions.
   make[1]: *** [nios2-elf/bits/stdc++.h] Error 1
   make[1]: Leaving directory `/home/Grant/nios/gcc-build/nios2-elf/libstdc++-v3/include'
   
   [...]

-- 
Grant Edwards                   grante             Yow!  I have no actual
                                  at               hairline...
                               visi.com            


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