From: Daniel Jacobowitz <drow@false.org>
To: Pedro Alves <pedro_alves@portugalmail.pt>
Cc: Pierre Muller <muller@ics.u-strasbg.fr>, gdb-patches@sourceware.org
Subject: Re: [RFC] Enhance backtrace for microsoft system DLL calls
Date: Mon, 10 Dec 2007 18:08:00 -0000 [thread overview]
Message-ID: <20071210173749.GA30618@caradoc.them.org> (raw)
In-Reply-To: <4053daab0712100931yb44d6e4m51ab3072f1406187@mail.gmail.com>
On Mon, Dec 10, 2007 at 05:31:35PM +0000, Pedro Alves wrote:
> That's placed there for hot patching, together with 5 bytes of slack before the
> function (the idea is to be able to replace that 2 byte op with a jump to
> 5 bytes back, and patch the 5 bytes with a jump into anywhere in the
> 32-bit address space.)
Interesting.
> You can put a flag in i386's gdbarch_tdep (look in
> i386-tdep.h, and i386-cygwin-tdep.c).
I don't think we need to. Hot patching this way may be MS-specific,
but a two byte NOP is a two byte NOP no matter where you find it.
--
Daniel Jacobowitz
CodeSourcery
next prev parent reply other threads:[~2007-12-10 17:37 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-10 16:45 Pierre Muller
2007-12-10 17:37 ` Pedro Alves
2007-12-10 18:08 ` Daniel Jacobowitz [this message]
2007-12-10 18:41 ` Pedro Alves
2007-12-11 10:44 ` Mark Kettenis
2007-12-11 17:29 ` Pierre Muller
2008-01-14 10:16 ` [RFC-v2] " Pierre Muller
2008-01-24 0:52 ` Pedro Alves
2008-01-24 17:51 ` Mark Kettenis
2008-01-25 14:16 ` [RFA] i386-tdep.c: Add i386_skip_noop function Pierre Muller
2008-01-25 16:38 ` Joel Brobecker
2008-01-25 16:46 ` [RFA] i386-tdep.c: Add i386_skip_noop function; updated Pierre Muller
2008-01-25 17:05 ` Mark Kettenis
2008-01-25 17:26 ` Joel Brobecker
2008-01-25 18:50 ` Pierre Muller
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