From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark Salter <msalter@cygnus.com>
To: kevinb@cygnus.com
Cc: davidwilliams@ozemail.com.au, gdb@sourceware.cygnus.com
Subject: Re: Breakpoints
Date: Wed, 22 Dec 1999 07:09:00 -0000
Message-id: <199912221509.KAA07326@msalter2.cygnus.com>
References: <01BF4C88.F6D54B20.davidwilliams@ozemail.com.au> <991222035342.ZM17881@ocotillo.lan>
X-SW-Source: 1999-q4/msg00541.html

>>>>> Kevin Buettner writes:

> On Dec 22,  2:29pm, David Williams wrote:
>> Does GDB ever need to set more than one breakpoint when stepping through 
>> source code? I have not (as yet) seen this type of behaviour.

> Can the target do a singlestep in hardware or do you have to do
> software emulation?  If the latter, when you're stepping by machine
> instruction, you'd need two breakpoints on a conditional branch;
> one for the branch target, the other for the instruction after the
> branch.

Even in the latter case, the stub can evaluate the condition of the
branch to see which way its going to go.

--Mark