[Bug target/55909] libtool test exposes what I think is some alignment issue in libstdc++

[philip.copeland at oracle dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55909

--- Comment #14 from philip.copeland at oracle dot com 2013-01-09 08:27:19 UTC ---
Smallest test case program

#include <iostream>
int main()
{
    std::cerr << "we are able to write to stderr\n";
}

bash-4.2# g++ test.c
bash-4.2# ./a.out
we are able to write to stderr
Segmentation fault (core dumped)



#0  0xfffff8010030a558 in __frame_dummy_init_array_entry ()
   from /lib64/libstdc++.so.6
#1  0xfffff80100180988 in __cxxabiv1::__cxa_get_globals ()
    at ../../../../libstdc++-v3/libsupc++/eh_globals.cc:63
#2  0xfffff801001807cc in std::uncaught_exception ()
    at ../../../../libstdc++-v3/libsupc++/eh_catch.cc:136
#3  0xfffff801001bcbe4 in ~sentry (this=0x7fefffff0b0, 
    __in_chrg=<optimized out>)
    at
/usr/src/debug/gcc-4.7.2-20121109/obj-sparc64-redhat-linux/sparc64-redhat-linux/libstdc++-v3/include/ostream:429
#4  std::__ostream_insert<char, std::char_traits<char> > (__out=..., 
    __s=__s@entry=0x100a00 "we are able to write to stderr\n", 
    __n=<optimized out>)
    at
/usr/src/debug/gcc-4.7.2-20121109/obj-sparc64-redhat-linux/sparc64-redhat-linux/libstdc++-v3/include/bits/ostream_insert.h:112
#5  0xfffff801001bcfc4 in std::operator<< <std::char_traits<char> > (
    __out=..., __s=0x100a00 "we are able to write to stderr\n")
    at
/usr/src/debug/gcc-4.7.2-20121109/obj-sparc64-redhat-linux/sparc64-redhat-linux/libstdc++-v3/include/ostream:533
#6  0x000000000010087c in main ()