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Exception thrown from multithreaded shared lib not caught in main
- From: Joao Luis Pinto <jpinto at inescporto dot pt>
- To: gcc-help at gcc dot gnu dot org
- Date: Sat, 04 Dec 2004 06:45:39 +0000
- Subject: Exception thrown from multithreaded shared lib not caught in main
Dear all:
I'm building an executable that uses 2 shared libraries, compiled with
-pthread. The executable is also compiled with -pthread. I'm using g++
version 3.3.4 (Debian testing x86).
One of the mentioned libraries function is throwing an exception (right
at the start). This function call is surrounded by a try/catch block at
main, that catches the particular thrown exception, all derived from
std::exception and all unhandled (catch(...) ). The problem is that the
exception does not reach this block, and abort is called. Here's a stack
trace from gdb:
[Thread debugging using libthread_db enabled]
[New Thread 1077965824 (LWP 30731)]
Program received signal SIGABRT, Aborted.
[Switching to Thread 1077965824 (LWP 30731)]
0x43d4bed9 in raise () from /lib/tls/libc.so.6
(gdb) where
#0 0x43d4bed9 in raise () from /lib/tls/libc.so.6
#1 0x43d4d771 in abort () from /lib/tls/libc.so.6
#2 0x44c4c307 in __cxa_call_unexpected () from /usr/lib/libstdc++.so.5
#3 0x44c4c344 in std::terminate () from /usr/lib/libstdc++.so.5
#4 0x44c4c367 in std::terminate () from /usr/lib/libstdc++.so.5
#5 0x44c4c225 in __cxa_call_unexpected () from /usr/lib/libstdc++.so.5
#6 0x4000ec3e in Unitcommitment::read_conventional (connection=@0x0,
longterm=true) at stl_alloc.h:242
#7 0x0804a782 in main (argc=1, argv=0x0) at main.cc:38
Any ideas on what's happening? I will be happy to provide further
information if needed, like source code listings and g++ call transcript.
Thank you,
João Luis