[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>
diff --git a/include/asm-ia64/break.h b/include/asm-ia64/break.h
index 8167828..f034020 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: