[Bug c++/43911] New: [4.4.3/4.5.0 regression] g++ can't compile any even trivial c++ source: undefined reference to `_Unwind_GetIPInfo'

[dougmencken at gmail dot com]

The test code which fails to compile with g++ on both 4.4.3 and 4.5.0:

#include <iostream>

int main(void)
{
        std::cout << "Hello." << std::endl;
        return 0;
}

$ gcc test.c++
/usr/lib/gcc/powerpc-gnu-linux-uclibc/4.5.0/../../../libstdc++.so: undefined
reference to `_Unwind_GetIPInfo'
collect2: ld returned 1 exit status


---- 4.4.2 (last working version with good g++) ----
Target: powerpc-gnu-linux-uclibc
Configured with: ./configure --prefix=/usr --build=powerpc-gnu-linux-uclibc
--host=powerpc-gnu-linux-uclibc --target=powerpc-gnu-linux-uclibc --disable-nls
--with-system-zlib --disable-checking --disable-werror --disable-multilib
--disable-libssp --enable-languages=c,c++ --enable-shared
--enable-threads=posix --disable-__cxa_atexit
Thread model: posix

---- 4.4.3 (doesn't work) ----
Configured with: ./configure --prefix=/usr --sysconfdir=/etc
--mandir=/usr/share/man --build=powerpc-gnu-linux-uclibc
--host=powerpc-gnu-linux-uclibc --target=powerpc-gnu-linux-uclibc --disable-nls
--with-system-zlib --disable-checking --disable-werror --disable-multilib
--disable-libssp --enable-languages=c,c++ --enable-shared
--enable-threads=posix --disable-__cxa_atexit
Thread model: posix

---- 4.5.0 (doesn't work too) ----
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/powerpc-gnu-linux-uclibc/4.5.0/lto-wrapper
Target: powerpc-gnu-linux-uclibc
Configured with: ./configure --prefix=/usr --sysconfdir=/etc
--mandir=/usr/share/man --build=powerpc-gnu-linux-uclibc
--host=powerpc-gnu-linux-uclibc --target=powerpc-gnu-linux-uclibc
--with-system-zlib --enable-languages=c,c++,fortran --disable-nls
--disable-werror --disable-multilib --disable-libssp --enable-checking=assert
--enable-shared --enable-threads=posix --disable-__cxa_atexit
Thread model: posix

I also tried to bootstrap with "--disable-libunwind-exceptions" appended to
./configure params ­no success.


Here are problem binaries of 4.4.3 and 4.5.0:
http://ftp.osuosl.org/pub/manulix/binpkg/buggy/gcc-4.4.3-powerpc-gnu-linux-uclibc.b2.binpkg.tar.bz2
http://ftp.osuosl.org/pub/manulix/binpkg/buggy/gcc-4.5.0-powerpc-gnu-linux-uclibc.binpkg.tar.bz2
md5sums:
4b964382b69440491aaf982816d244c5 
gcc-4.4.3-powerpc-gnu-linux-uclibc.b2.binpkg.tar.bz2
3264685eb6a9e7cb1a87070a478ae0c4 
gcc-4.5.0-powerpc-gnu-linux-uclibc.binpkg.tar.bz2

They have been built with GMP 5.0.0 and MPFR 2.4.2-p3 (and MPC 0.8.1 for
4.5.0). If you don't have an access to real powerpc hardware, you can test them
in some emulator (like qemu), I think. Also to reproduce you can try to
bootstrap native gcc > 4.4.2 on some real/emulated powerpc host (*not* i386 nor
i486 nor i586 nor i586mmx nor i686 nor x86_64 etc.).


-- 
           Summary: [4.4.3/4.5.0 regression] g++ can't compile any even
                    trivial c++ source: undefined reference to
                    `_Unwind_GetIPInfo'
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: major
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dougmencken at gmail dot com
 GCC build triplet: powerpc-gnu-linux-uclibc
  GCC host triplet: powerpc-gnu-linux-uclibc
GCC target triplet: powerpc-gnu-linux-uclibc


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43911