[Bug c++/50274] New: Conditionnal rethrow

[Bug c++/50274] New: Conditionnal rethrow

[romain.geissler at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50274

             Bug #: 50274
           Summary: Conditionnal rethrow
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: romain.geissler@gmail.com


This bug could be reproduced on x86_64 with G++ 4.5.x, 4.6.x and the current
trunk.

Target: x86_64-unknown-linux-gnu
Configured with: /prj/compwork2/geissler/trunk/configure
--prefix=/prj/compwork2/geissler/install --enable-shared
--enable-languages=c,c++ --disable-libgcj --enable-checking --enable-plugin
--with-gmp=/sw/st/gnu_compil/gnu/linux-rh-ws-4-x86_64/
--with-mpfr=/sw/st/gnu_compil/gnu/linux-rh-ws-4-x86_64/
--with-mpc=/sw/st/gnu_compil/gnu/linux-rh-ws-4-x86_64/
--with-ppl=/sw/st/gnu_compil/gnu/linux-rh-ws-4-x86_64/
--with-cloog=/sw/st/gnu_compil/gnu/linux-rh-ws-4-x86_64/
Thread model: posix
gcc version 4.7.0 20110829 (experimental) (GCC)

Compilation line: g++ rethrow.cpp -o rethrow

The rethrow made in foo handler is not caught by the main handler as it should.
Here is the execution trace:
throw
caught foo
terminate called after throwing an instance of 'int'
Aborted

It works with GCC 4.4.x :
throw
caught foo
caught main

If the test "if (!i)" is removed, it works. If foo prototype is changed to
return void it also works.

[Bug c++/50274] Conditionnal rethrow

[romain.geissler at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50274

--- Comment #1 from Romain Geissler <romain.geissler at gmail dot com> 2011-09-02 11:00:50 UTC ---
Created attachment 25176
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25176
Rethrow made in foo is not caught in main handler.

[Bug c++/50274] Conditionnal rethrow

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50274

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2011-09-02
     Ever Confirmed|0                           |1

--- Comment #2 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-09-02 11:18:33 UTC ---
It works for me with 4.5 and 4.6 and 4.7 on x86_64-linux.

linux-rh-ws-4-x86_64

are you maybe using a very old glibc (and thus unwinder)?  Is the
libgcc_s.so.1 used at runtime that from the compiler versions you tested?

[Bug c++/50274] Conditionnal rethrow

[romain.geissler at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50274

Romain Geissler <romain.geissler at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |RESOLVED
         Resolution|                            |INVALID

--- Comment #3 from Romain Geissler <romain.geissler at gmail dot com> 2011-09-02 11:43:51 UTC ---
Yeah you're right, i used an old libgcc_s.so.1 at runtime. It works when using
the correct library.