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Re: [PATCH 3/7]: Ping3: Merge from Stack Branch - DWARF2

From: Daniel Jacobowitz <drow at false dot org>
To: Jason Merrill <jason at redhat dot com>
Cc: "Guo, Xuepeng" <xuepeng dot guo at intel dot com>, gcc-patches at gcc dot gnu dot org, Richard Guenther <richard dot guenther at gmail dot com>, "Lu, Hongjiu" <hongjiu dot lu at intel dot com>, Jan Hubicka <hubicka at ucw dot cz>, "Ye, Joey" <joey dot ye at intel dot com>
Date: Thu, 12 Jun 2008 11:08:36 -0400
Subject: Re: [PATCH 3/7]: Ping3: Merge from Stack Branch - DWARF2
References: <FE7BBCFBB500984A9A7922EBC95F516E013E6D14@pdsmsx414.ccr.corp.intel.com> <48496774.8050506@redhat.com> <FE7BBCFBB500984A9A7922EBC95F516E0145243B@pdsmsx414.ccr.corp.intel.com> <48513769.4000700@redhat.com>

On Thu, Jun 12, 2008 at 04:49:13PM +0200, Jason Merrill wrote:
> You're still violating the DWARF standard by changing the value of the
> CFA; it starts out being the $sp on entry to the function, and then
> changes to be $sp after alignment and saving the frame pointer.

Changing the value of the CFA mid-function will also break GDB.

-- 
Daniel Jacobowitz
CodeSourcery

References:
- Re: [PATCH 3/7]: Ping3: Merge from Stack Branch - DWARF2
  - From: Guo, Xuepeng
- Re: [PATCH 3/7]: Ping3: Merge from Stack Branch - DWARF2
  - From: Jason Merrill
- RE: [PATCH 3/7]: Ping3: Merge from Stack Branch - DWARF2
  - From: Guo, Xuepeng
- Re: [PATCH 3/7]: Ping3: Merge from Stack Branch - DWARF2
  - From: Jason Merrill

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