Add arch_ptrace_stop
authorRoland McGrath <roland@redhat.com>
Wed, 6 Feb 2008 09:37:37 +0000 (01:37 -0800)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Wed, 6 Feb 2008 18:41:07 +0000 (10:41 -0800)
commit1a669c2f16d478cb7f4452e5fb8d09320831f4a1
treeb13f0aa0aebc51d1795203658053484b7c97b8cb
parent941d2380e979dfefb6c824452e9f42be3ef948ee
Add arch_ptrace_stop

This adds support to allow asm/ptrace.h to define two new macros,
arch_ptrace_stop_needed and arch_ptrace_stop.  These control special
machine-specific actions to be done before a ptrace stop.  The new code
compiles away to nothing when the new macros are not defined.  This is the
case on all machines to begin with.

On ia64, these macros will be defined to solve the long-standing issue of
ptrace vs register backing store.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Petr Tesarik <ptesarik@suse.cz>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Matthew Wilcox <willy@debian.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
include/linux/ptrace.h
kernel/signal.c