[IA64] enable trap code on slot 1

Because slot 1 of one instr bundle crosses border of two consecutive
8-bytes, kprobe on slot 1 is disabled. This patch enables kprobe on
slot1, it only replaces higher 8-bytes of the instruction bundle and
changes the exception code to ignore the low 12 bits of the break
number (which is across the border in the lower 8-bytes of the bundle).

For those instructions which must execute regardless qp bits,
kprobe on slot 1 is still disabled.

Signed-off-by: bibo,mao <bibo.mao@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/include/asm-ia64/break.h b/include/asm-ia64/break.h
index 8167828edc4b..f03402039896 100644
--- a/include/asm-ia64/break.h
+++ b/include/asm-ia64/break.h
@@ -12,8 +12,8 @@
  * OS-specific debug break numbers:
  */
 #define __IA64_BREAK_KDB                0x80100
-#define __IA64_BREAK_KPROBE             0x80200
-#define __IA64_BREAK_JPROBE             0x80300
+#define __IA64_BREAK_KPROBE             0x81000 /* .. 0x81fff */
+#define __IA64_BREAK_JPROBE             0x82000
 
 /*
  * OS-specific break numbers: