X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Flinux%2Fhw_breakpoint.h;h=41235c93e4e95400bf0db52bf2f7b84399d22a39;hb=f653398c86a1c104f0992bd788dd4bb065449be4;hp=a03daed08c59e44d8294525df8fda859eeab417e;hpb=dd1853c3f493f6d22d9e5390b192a07b73d2ac0a;p=safe%2Fjmp%2Flinux-2.6

diff --git a/include/linux/hw_breakpoint.h b/include/linux/hw_breakpoint.h
index a03daed..41235c9 100644
--- a/include/linux/hw_breakpoint.h
+++ b/include/linux/hw_breakpoint.h
@@ -20,19 +20,18 @@ enum {
 
 #ifdef CONFIG_HAVE_HW_BREAKPOINT
 
-/* As it's for in-kernel or ptrace use, we want it to be pinned */
-#define DEFINE_BREAKPOINT_ATTR(name)	\
-struct perf_event_attr name = {		\
-	.type = PERF_TYPE_BREAKPOINT,	\
-	.size = sizeof(name),		\
-	.pinned = 1,			\
-};
-
 static inline void hw_breakpoint_init(struct perf_event_attr *attr)
 {
+	memset(attr, 0, sizeof(*attr));
+
 	attr->type = PERF_TYPE_BREAKPOINT;
 	attr->size = sizeof(*attr);
+	/*
+	 * As it's for in-kernel or ptrace use, we want it to be pinned
+	 * and to call its callback every hits.
+	 */
 	attr->pinned = 1;
+	attr->sample_period = 1;
 }
 
 static inline unsigned long hw_breakpoint_addr(struct perf_event *bp)
@@ -52,27 +51,24 @@ static inline int hw_breakpoint_len(struct perf_event *bp)
 
 extern struct perf_event *
 register_user_hw_breakpoint(struct perf_event_attr *attr,
-			    perf_callback_t triggered,
+			    perf_overflow_handler_t triggered,
 			    struct task_struct *tsk);
 
 /* FIXME: only change from the attr, and don't unregister */
-extern struct perf_event *
-modify_user_hw_breakpoint(struct perf_event *bp,
-			  struct perf_event_attr *attr,
-			  perf_callback_t triggered,
-			  struct task_struct *tsk);
+extern int
+modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *attr);
 
 /*
  * Kernel breakpoints are not associated with any particular thread.
  */
 extern struct perf_event *
 register_wide_hw_breakpoint_cpu(struct perf_event_attr *attr,
-				perf_callback_t triggered,
+				perf_overflow_handler_t	triggered,
 				int cpu);
 
 extern struct perf_event **
 register_wide_hw_breakpoint(struct perf_event_attr *attr,
-			    perf_callback_t triggered);
+			    perf_overflow_handler_t triggered);
 
 extern int register_perf_hw_breakpoint(struct perf_event *bp);
 extern int __register_perf_hw_breakpoint(struct perf_event *bp);
@@ -93,20 +89,18 @@ static inline struct arch_hw_breakpoint *counter_arch_bp(struct perf_event *bp)
 
 static inline struct perf_event *
 register_user_hw_breakpoint(struct perf_event_attr *attr,
-			    perf_callback_t triggered,
+			    perf_overflow_handler_t triggered,
 			    struct task_struct *tsk)	{ return NULL; }
-static inline struct perf_event *
+static inline int
 modify_user_hw_breakpoint(struct perf_event *bp,
-			  struct perf_event_attr *attr,
-			  perf_callback_t triggered,
-			  struct task_struct *tsk)	{ return NULL; }
+			  struct perf_event_attr *attr)	{ return -ENOSYS; }
 static inline struct perf_event *
 register_wide_hw_breakpoint_cpu(struct perf_event_attr *attr,
-				perf_callback_t triggered,
+				perf_overflow_handler_t	 triggered,
 				int cpu)		{ return NULL; }
 static inline struct perf_event **
 register_wide_hw_breakpoint(struct perf_event_attr *attr,
-			    perf_callback_t triggered)	{ return NULL; }
+			    perf_overflow_handler_t triggered)	{ return NULL; }
 static inline int
 register_perf_hw_breakpoint(struct perf_event *bp)	{ return -ENOSYS; }
 static inline int