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Re: catch throw -how?


On Tue, Jan 28, 2003 at 04:35:14PM +0100, Markus Werle wrote:
> Hi!
> 
> Using gdb-5.1.1 I wanted to use the "catch" feature for C++ exceptions like this
> 
> # gdb ./myprogram
> GNU gdb 5.1.1
> Copyright 2002 Free Software Foundation, Inc.
> GDB is free software, covered by the GNU General Public License, and you are
> welcome to change it and/or distribute copies of it under certain conditions.
> Type "show copying" to see the conditions.
> There is absolutely no warranty for GDB.  Type "show warranty" for details.
> This GDB was configured as "i686-pc-linux-gnu"...
> (gdb) catch throw
> You can't do that without a process to debug.
> (gdb)
> 
> 1. I do not understand the error message, please explain
> 2. Is this a bug resolved in gdb-5.3 or am I missing some information?
> 
> 
> best regards,
> 
> 
> Markus
> 
Markus,

I'm not sure, but i think you may need to specify a core file at
startup, or attach to a process that you want to debug...

process id of program to debug = 4128
user@host:~$ gdb
(gdb) attach 4128
Attaching to process 4128
Reading symbols from /usr/lib/libcurses.so.1...(no debugging symbols found)...
done.
Reading symbols from /usr/lib/libc.so.1...(no debugging symbols found)...done.
Reading symbols from /usr/lib/libdl.so.1...(no debugging symbols found)...done.
Reading symbols from /usr/platform/SUNW,Ultra-1/lib/libc_psr.so.1...  (no debugging symbols found)...done.
Symbols already loaded for /usr/lib/libcurses.so.1
Symbols already loaded for /usr/lib/libc.so.1
Symbols already loaded for /usr/lib/libdl.so.1
Symbols already loaded for /usr/platform/SUNW,Ultra-1/lib/libc_psr.so.1
0xff319ad4 in syscall () from /usr/lib/libc.so.1
(gdb)

now try your catch...  I'm not sure if that helps or not, but good luck
:-)

Ben


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