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Re: [PATCH] Omit frame pointer and fix %ebp by default on x86 (take3)

From: Andrew Haley <aph at redhat dot com>
To: Roger Sayle <roger at eyesopen dot com>
Cc: Jakub Jelinek <jakub at redhat dot com>, <gcc-patches at gcc dot gnu dot org>, Richard Henderson <rth at redhat dot com>
Date: Mon, 16 Aug 2004 19:51:19 +0100
Subject: Re: [PATCH] Omit frame pointer and fix %ebp by default on x86 (take3)
References: <20040816183421.GW22252@devserv.devel.redhat.com><Pine.LNX.4.44.0408161216480.22769-100000@www.eyesopen.com>

Roger Sayle writes:
 > 
 > On Mon, 16 Aug 2004, Jakub Jelinek wrote:
 > > Neither do I understand this.
 > 
 > Don't worry about too much.  Clearly you're not the only one that's
 > having difficulty grasping these advanced new concepts :>
 > 
 > This patch is not designed to make backtrace work for every frame,
 > only to stop it from failing.

Well, missing some stack frames is, from the Java point of view,
failing.  We need stack traces for correct functioning.

We will work around this in Java by using unwinder info to do a
backtrace, but we don't yet do so.  Please do not check in this patch.

Andrew.

Follow-Ups:
- Re: [PATCH] Omit frame pointer and fix %ebp by default on x86 (take 3)
  - From: Daniel Berlin
- Re: [PATCH] Omit frame pointer and fix %ebp by default on x86 (take3)
  - From: Roger Sayle
- Re: [PATCH] Omit frame pointer and fix %ebp by default on x86 (take3)
  - From: Roger Sayle

References:
- Re: [PATCH] Omit frame pointer and fix %ebp by default on x86 (take 3)
  - From: Jakub Jelinek
- Re: [PATCH] Omit frame pointer and fix %ebp by default on x86 (take3)
  - From: Roger Sayle

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