From mboxrd@z Thu Jan  1 00:00:00 1970
From: Kevin Buettner <kevinb@cygnus.com>
To: Alexandre Oliva <aoliva@redhat.com>, Kevin Buettner <kevinb@cygnus.com>
Cc: Jonathan Larmour <jlarmour@redhat.com>, gdb@sources.redhat.com
Subject: Re: SH breakpoint problem
Date: Tue, 07 Aug 2001 22:46:00 -0000
Message-id: <1010808054531.ZM26428@ocotillo.lan>
References: <3B6F5625.ADBD6F53@redhat.com> <1010807224211.ZM23418@ocotillo.lan> <orofprp2x7.fsf@feijoada.lsd.ic.unicamp.br> <aoliva@redhat.com>
X-SW-Source: 2001-08/msg00059.html

On Aug 8,  1:54am, Alexandre Oliva wrote:

> On Aug  7, 2001, Kevin Buettner <kevinb@cygnus.com> wrote:
> 
> > My opinion is that gdb should use the information obtained from
> > find_pc_line() only to refine the limit searched by the prologue
> > scanner.  The prologue scanner needs to be taught that it must
> > never scan past an instruction which modifies the flow of control
> > (i.e, branch or call instructions).
> 
> This would cause a yet-to-be-contributed port I worked on to stop the
> search too early, because some peculiarities of the ABI require
> function calls to be inserted in the prologue in certain
> circumstances.

That sort of thing is okay so long as you teach the prologue analyzer
about these special functions.

Kevin