hw-breakpoints: Separate constraint space for data and instruction breakpoints

[safe/jmp/linux-2.6] / include / linux / hw_breakpoint.h

diff --git a/include/linux/hw_breakpoint.h b/include/linux/hw_breakpoint.h
index a0aa5a9..7e88990 100644 (file)
--- a/include/linux/hw_breakpoint.h
+++ b/include/linux/hw_breakpoint.h
@@ -9,9 +9,12 @@ enum {
 };
 
 enum {
-       HW_BREAKPOINT_R = 1,
-       HW_BREAKPOINT_W = 2,
-       HW_BREAKPOINT_X = 4,
+       HW_BREAKPOINT_EMPTY     = 0,
+       HW_BREAKPOINT_R         = 1,
+       HW_BREAKPOINT_W         = 2,
+       HW_BREAKPOINT_RW        = HW_BREAKPOINT_R | HW_BREAKPOINT_W,
+       HW_BREAKPOINT_X         = 4,
+       HW_BREAKPOINT_INVALID   = HW_BREAKPOINT_RW | HW_BREAKPOINT_X,
 };
 
 #ifdef __KERNEL__