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authorRoland McGrath <roland@redhat.com>2005-04-16 15:24:46 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:24:46 -0700
commitecd02dddd1d5bfc2141cbd0e205a53fb9d849c9e (patch)
tree06660dbabc1df1a5c6ee23d48bb07e09e2960a88 /arch/i386
parentb0a70b57f909647d79e0cc30772a0664fbf9830a (diff)
[PATCH] i386: Use loaddebug macro consistently
This moves the macro loaddebug from asm-i386/suspend.h to asm-i386/processor.h, which is the place that makes sense for it to be defined, removes the extra copy of the same macro in arch/i386/kernel/process.c, and makes arch/i386/kernel/signal.c use the macro in place of its expansion. This is a purely cosmetic cleanup for the normal i386 kernel. However, it is handy for Xen to be able to just redefine the loaddebug macro once instead of also changing the signal.c code. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/i386')
-rw-r--r--arch/i386/kernel/process.c7
-rw-r--r--arch/i386/kernel/signal.c2
2 files changed, 1 insertions, 8 deletions
diff --git a/arch/i386/kernel/process.c b/arch/i386/kernel/process.c
index 36145efc61b..b2203e21acb 100644
--- a/arch/i386/kernel/process.c
+++ b/arch/i386/kernel/process.c
@@ -558,13 +558,6 @@ handle_io_bitmap(struct thread_struct *next, struct tss_struct *tss)
*/
tss->io_bitmap_base = INVALID_IO_BITMAP_OFFSET_LAZY;
}
-/*
- * This special macro can be used to load a debugging register
- */
-#define loaddebug(thread,register) \
- __asm__("movl %0,%%db" #register \
- : /* no output */ \
- :"r" (thread->debugreg[register]))
/*
* switch_to(x,yn) should switch tasks from x to y.
diff --git a/arch/i386/kernel/signal.c b/arch/i386/kernel/signal.c
index ef3602e1c05..ea46d028af0 100644
--- a/arch/i386/kernel/signal.c
+++ b/arch/i386/kernel/signal.c
@@ -618,7 +618,7 @@ int fastcall do_signal(struct pt_regs *regs, sigset_t *oldset)
* inside the kernel.
*/
if (unlikely(current->thread.debugreg[7])) {
- __asm__("movl %0,%%db7" : : "r" (current->thread.debugreg[7]));
+ loaddebug(&current->thread, 7);
}
/* Whee! Actually deliver the signal. */