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From: Peter Barada <peter@baradas.org>
To: Jan.Vermeulen@siemens.com
Cc: pbarada@mail.wm.sps.mot.com, gdb@sources.redhat.com
Subject: Re: How to build application to run under the ppc simulator?
Date: Thu, 10 Apr 2003 06:08:00 -0000	[thread overview]
Message-ID: <20030410060849.46F9998990@baradas.org> (raw)
In-Reply-To: <57FD2C3A246F76438CA6FDAD8FE9F19597E9D6@hrtades7.atea.be> (message from Vermeulen Jan on Thu, 10 Apr 2003 08:02:52 +0200)


>> I can't stepi from the start, I have to run it.  How(actually,
>> *where*) can I set a breakpoint at the *first* instruction so I can
>> *then* stepi? 
>
>If your only function is 'foo', why not try "break foo" at the gdb command?
>
>I just tried it out (same example as you) and it works. I can stepi in the
>program and see that it jumps to 0x0 after the 'blr' instruction at the end
>of 'foo' where it segfaults.

Yeah, I figured out that I can break at main, but I'm trying to figure
out why:

(gdb) tar sim
Connected to the simulator.
(gdb) load
(gdb) p $pc
$1 = 0
(gdb) x/i 0x0
0x0:	Cannot access memory at address 0x0
(gdb) 

So the simulater starts out at 0x0 which doesn't make sense.  Where
does gdb change its mind and figure out where to start?

BTW, how do I use the 'built-in' serial port in the ppc simulator?

-- 
Peter Barada
peter@baradas.org


  reply	other threads:[~2003-04-10  6:08 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-04-10  6:02 Vermeulen Jan
2003-04-10  6:08 ` Peter Barada [this message]
  -- strict thread matches above, loose matches on Subject: below --
2003-04-10  7:12 Vermeulen Jan
2003-04-09  6:33 Vermeulen Jan
2003-04-09  6:21 Vermeulen Jan
2003-04-09 16:14 ` Peter Barada
2003-04-09  4:40 Peter Barada

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