This is the mail archive of the gdb@sources.redhat.com mailing list for the GDB project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: [6.2] PROBLEMS file

From: Mark Kettenis <kettenis at chello dot nl>
To: hjl at lucon dot org
Cc: eliz at gnu dot org, cagney at gnu dot org, gdb at sources dot redhat dot com
Date: Thu, 22 Jul 2004 22:51:48 +0200 (CEST)
Subject: Re: [6.2] PROBLEMS file
References: <40FB3F1F.3040900@gnu.org> <1659-Mon19Jul2004215127+0300-eliz@gnu.org> <200407212059.i6LKxgQ9019045@copland.kettenis.dyndns.org> <20040721211632.GA26232@lucon.org>

   Date: Wed, 21 Jul 2004 14:16:32 -0700
   From: "H. J. Lu" <hjl@lucon.org>

   FYI, the i386 psABI, which is also used by the x86-64 psABI, says:

   %ebp	The content of this register is unspecified at process
	   initialization time, but the user code should mark the
	   deepest stack frame by setting the frame pointer to zero.
	   No other frame's %ebp should have a zero value.

Which contradicts the optional nature of %ebp as a frame pointer.  So
the standard contradicts itself.  Anyway, in practice the %ebp == 0
condition is useless.

Mark

Follow-Ups:
- Re: [6.2] PROBLEMS file
  - From: Joel Brobecker
- Re: [6.2] PROBLEMS file
  - From: H. J. Lu

References:
- [6.2] PROBLEMS file
  - From: Andrew Cagney
- Re: [6.2] PROBLEMS file
  - From: Eli Zaretskii
- Re: [6.2] PROBLEMS file
  - From: Mark Kettenis
- Re: [6.2] PROBLEMS file
  - From: H. J. Lu

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]