Re: gdbserver with PowerPC 8260

[Daniel Jacobowitz <drow at mvista dot com>]

> Program received signal SIG32, Real-time event 32.

If you get that message, multithreaded debug is not working.   Is
libthread_db available on your target?

On Tue, Oct 01, 2002 at 07:13:16PM -0400, Wenxiang Dai wrote:
> I downloaded the latest GDB code "gdb+dejagnu-weekly-20021001.tar.bz2" from
> sources.rehat.com, and rebuild the gdbserver and gdb for powerpc target,
> then I used the gdbserver to debug a multi-threads programme in target, if
> the breakpoint was set in main routine, it's OK, but if the break point was
> set within any other child thread, the break point can be hit, however, the
> debug cusor is not shown and the gdb say it is going to libc.so, if I say n,
> the target programme will crash.
> 
> I try to set "solib-search-path" to the target share lib path, the problem
> remains same.
> 
> I used nfs to map the root file system to target.
> 
> Any thought? Any suggestion?
> 
> Thanks
> 
> here is the display of the gdb
> 
> GNU DDD 3.3.1 (i386-redhat-linux-gnu), by Dorothea Lütkehaus and Andreas
> Zeller.
> Copyright © 1995-1999 Technische Universität Braunschweig, Germany.
> Copyright © 1999-2001 Universität Passau, Germany.
> (gdb) set solib-search-path /exports/rfs/lib
> (gdb) file /home/wxdai/work/ipdslam/icm/apps/build/nmgt/bin.mpc/nmgt
> (gdb) list clib_pass.c:1
> Line 1 of "../../../../icm/apps/nmgt/cli_b/clib_pass.c" is at address
> 0x1003ff94 <enable_prv_func> but contains no code.
> 
> /home/wxdai/work/ipdslam/icm/apps/nmgt/cli_b/clib_pass.c:1:0:beg:0x1003ff94
> (gdb) break ../../../../icm/apps/nmgt/cli_b/clib_pass.c:20
> Breakpoint 1 at 0x1003ffb4: file
> ../../../../icm/apps/nmgt/cli_b/clib_pass.c,
> line 20.
> (gdb) target remote 172.16.133.231:12345
> 0x30010660 in ?? ()
> (gdb) handle SIG32 nostop
> (gdb) c
> 
> Program received signal SIG32, Real-time event 32.
> 
> Program received signal SIG32, Real-time event 32.
> 
> Program received signal SIG32, Real-time event 32.
> 
> Program received signal SIG32, Real-time event 32.
> 
> Program received signal SIGTRAP, Trace/breakpoint trap.
> 0x0ff12e00 in ngettext () from /lib/libc.so.6
> (gdb) c
> 
> 

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer