[Bug c++/16061] New: c++ throw generates sigabrt

[greg dot weeks at timesys dot com]

I've tried this on three different versions of the compiler built for i686. This
is the most current one I have built. It's a December snapshot of 3.4. Since
it's been there since 3.2 and I didn't find a prior bug report for it I expect
it's still there. When doing a simple try/catch/throw sequence I get a sigabrt
instead of the catch. It only happens on an i686 build. When I build for i585 it
works fine. It also only happens when using dynamic linking. a -static compile
works also.

bash-2.05# g++ -v -save-temps -Wall throw2.cpp -o throw2
Reading specs from /usr/lib/gcc/i686-linux/3.4/specs
Configured with: ../package/configure --build=i686-linux --host=i686-linux
--target=i686-linux --prefix=/usr --enable-initfini-array
--enable-languages=c,c++ --enable-shared --enable-threads=posix --with-gnu-as
--with-gnu-ld --disable-sjlj-exceptions
Thread model: posix
gcc version 3.4 20031210 (experimental)
 /usr/libexec/gcc/i686-linux/3.4/cc1plus -E -quiet -v -D_GNU_SOURCE throw2.cpp
-mtune=pentiumpro -Wall -o throw2.ii
ignoring duplicate directory "/usr/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/lib/gcc/i686-linux/3.4/../../../../include/c++/3.4
 /usr/lib/gcc/i686-linux/3.4/../../../../include/c++/3.4/i686-linux
 /usr/lib/gcc/i686-linux/3.4/../../../../include/c++/3.4/backward
 /usr/local/include
 /usr/lib/gcc/i686-linux/3.4/include
 /usr/lib/gcc/i686-linux/3.4/../../../../i686-linux/include
End of search list.
 /usr/libexec/gcc/i686-linux/3.4/cc1plus -fpreprocessed throw2.ii -quiet
-dumpbase throw2.cpp -mtune=pentiumpro -auxbase throw2 -Wall -version -o throw2.s
GNU C++ version 3.4 20031210 (experimental) (i686-linux)
        compiled by GNU C version 3.4 20031210 (experimental).
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
 /usr/lib/gcc/i686-linux/3.4/../../../../i686-linux/bin/as -V -Qy -o throw2.o
throw2.s
GNU assembler version 2.14.90.0.7 (i686-linux) using BFD version 2.14.90.0.7
20031029
 /usr/libexec/gcc/i686-linux/3.4/collect2 --eh-frame-hdr -m elf_i386
-dynamic-linker /opt/timesys/linux/5.0/toolchains/i686-linux/lib/ld-linux.so.2
-o throw2 /usr/lib/gcc/i686-linux/3.4/../../../../i686-linux/lib/crt1.o
/usr/lib/gcc/i686-linux/3.4/../../../../i686-linux/lib/crti.o
/usr/lib/gcc/i686-linux/3.4/crtbegin.o -L/usr/lib/gcc/i686-linux/3.4
-L/usr/lib/gcc/i686-linux/3.4
-L/usr/lib/gcc/i686-linux/3.4/../../../../i686-linux/lib
-L/usr/lib/gcc/i686-linux/3.4/../../.. throw2.o -lstdc++ -lm -lgcc_s -lgcc -lc
-lgcc_s -lgcc /usr/lib/gcc/i686-linux/3.4/crtend.o
/usr/lib/gcc/i686-linux/3.4/../../../../i686-linux/lib/crtn.o
bash-2.05# ./throw2
Aborted
bash-2.05#



The program code in throw2.cpp is:

class CTryObj
{
public:
        CTryObj(){;}
public:
        int tfunction( void ){
          throw 1;
          return 0;
        }
};

int main( void )
{

        CTryObj to;

        try
        {
                to.tfunction();
        }
        catch(...)
        {
        }

        return 0;
}

-- 
           Summary: c++ throw generates sigabrt
           Product: gcc
           Version: 3.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: greg dot weeks at timesys dot com
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-linux
  GCC host triplet: i686-linux
GCC target triplet: i686-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16061