From: Daniel Jacobowitz <drow@false.org>
Date: Thu, 4 Aug 2005 20:41:09 +0000 (-0700)
Subject: [PATCH] x86_64: fix 32-bit thread debugging
X-Git-Tag: v2.6.13-rc6~46
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e8ed11b9dc07df0134248542ca8e7d40751a6052;p=pandora-kernel.git

[PATCH] x86_64: fix 32-bit thread debugging

The IA32 ptrace emulation currently returns the wrong registers for fs/gs;
it's returning what x86_64 calls gs_base.  We need regs.gsindex in order
for GDB to correctly locate the TLS area.  Without this patch, the 32-bit
GDB testsuite bombs on a 64-bit kernel.  With it, results look about like
I'd expect, although there are still a handful of kernel-related failures
(vsyscall related?).

Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com>
Acked-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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