From mboxrd@z Thu Jan  1 00:00:00 1970
From: rodrigc@gcc.gnu.org
To: gcc-bugs@gcc.gnu.org, gcc-prs@gcc.gnu.org, nobody@gcc.gnu.org, rodrigc@gcc.gnu.org, topiolli@ee.oulu.fi
Subject: Re: c++/4381: Exceptions virtually inherited from a class cause segmentation fault at run time
Date: Thu, 27 Sep 2001 22:27:00 -0000
Message-id: <20010928052750.26689.qmail@sourceware.cygnus.com>
X-SW-Source: 2001-09/msg00523.html
List-Id: <gcc-prs.sourceware.org>

Synopsis: Exceptions virtually inherited from a class cause segmentation fault at run time

State-Changed-From-To: open->analyzed
State-Changed-By: rodrigc
State-Changed-When: Thu Sep 27 22:27:49 2001
State-Changed-Why:
    Verified with gcc version 3.0.2 20010927 (prerelease)
    under Linux.
    
    A backtrace of the resulting Segmentation Fault
    reveals:
    
    Program received signal SIGSEGV, Segmentation fault.  
    
    #0  __cxxabiv1::__vmi_class_type_info::__do_upcast(__cxxabiv1::__class_type_info const*, void const*, __cxxabiv1::__class_type_info::__upcast_result&) const (this=0x804dca0, dst=0x804dc80, obj_ptr=0x1a,
        result=@0xbffff2b0) at tinfo.cc:104
    #1  0x4005f9fa in __cxxabiv1::__class_type_info::__do_upcast(__cxxabiv1::__class_type_info const*, void**) const (this=0x804dca0,
        dst_type=0x804dc80, obj_ptr=0xbffff318) at tinfo.cc:228
    #2  0x4005f9bb in __cxxabiv1::__class_type_info::__do_catch(std::type_info const*, void**, unsigned) const (this=0x804dc80,
        thr_type=0x804dca0, thr_obj=0xbffff318, outer=1) at tinfo.cc:219
    #3  0x4005ea39 in check_exception_spec(lsda_header_info*, std::type_info const*, long) (info=0xbffff3b0, throw_type=0x804dca0,
        filter_value=-1) at eh_personality.cc:119
    #4  0x4005ee29 in __gxx_personality_v0 (version=1, actions=2,
        exception_class=5138137972254386944, ue_header=0x8050448,
        context=0xbffff5c0) at eh_personality.cc:331
    #5  0x400e73b5 in _Unwind_RaiseException_Phase2 (exc=0x8050448,
        context=0xbffff5c0) at unwind-dw2.c:1045
    #6  0x400e74fb in _Unwind_RaiseException (exc=0x8050448)
        at unwind-dw2.c:1045
    #7  0x4005f1a8 in __cxa_throw (obj=0x8050468, tinfo=0x804dca0,
        dest=0) at eh_throw.cc:72
    #8  0x0804a4f7 in func() ()
    #9  0x0804a52f in main ()
    #10 0x40106e5e in __libc_start_main (main=0x804a520 <main>, argc=1,
        ubp_av=0xbffff7b4, init=0x804a110 <_init>,
        fini=0x804cad0 <_fini>, rtld_fini=0x4000d3c4 <_dl_fini>,
        stack_end=0xbffff7ac) at ../sysdeps/generic/libc-start.c:129

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