Re: platform difference with threads -- help

[Daniel Jacobowitz <drow at mvista dot com>]

On Mon, Aug 06, 2001 at 05:07:40PM -0700, John Van Horne wrote:
> Hi,
> 
> I've got two PowerPC Linux platforms -- one is a G4 Macintosh, the other
> is one of my employer's products.  Both are running Linux kernel 2.4.2.

> But when I run it on the product I get:
> 
> sh-2.03$ uname -a
> Linux blade3_pe0.cosine 2.4.2 #45 Mon Aug 6 10:18:17 PDT 2001 ppc unknown
> sh-2.03$ ./gdb gdb_thread_test
> GNU gdb 20010627
> Copyright 2001 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 "powerpc-unknown-linux-gnu"...
> (gdb) run
> Starting program: /home/sharc/gdb_thread_test 
> 
> Program received signal SIG32, Real-time event 32.
> 0x0fedf224 in __syscall_rt_sigsuspend () from /lib/libc.so.6
> (gdb)
> 
> I can continue passed this until:
> 
> (gdb) c
> Continuing.
> 
> Program received signal SIGSEGV, Segmentation fault.
> 0x0fedf224 in __syscall_rt_sigsuspend () from /lib/libc.so.6
> (gdb)
> 
> 
> Can anyone help me figure out why the behavior is different on the two
> platforms? The kernel
> version is the same.  The test program is the same, and the GDB is the same.
> I also have the
> same libraries on both platforms.

Do you really?  Is there a libthread_db installed on your target
system?  This looks as if the thread module is not initialized.

-- 
Daniel Jacobowitz                           Carnegie Mellon University
MontaVista Software                         Debian GNU/Linux Developer