X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=wrapper%2Fperf.h;h=5de205cdda1eec77f60d0616a9fe6296a11300cf;hb=745dd71eba3a601459b4aa0128b47a31186342e6;hp=2caf308ab0abc6711070e0f796e337db1c607852;hpb=886d51a3d7ed5fa6b41d7f19b3e14ae6c535a44c;p=lttng-modules.git

diff --git a/wrapper/perf.h b/wrapper/perf.h
index 2caf308a..5de205cd 100644
--- a/wrapper/perf.h
+++ b/wrapper/perf.h
@@ -32,7 +32,9 @@ wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr,
 {
 	return perf_event_create_kernel_counter(attr, cpu, task, callback, NULL);
 }
-#else
+#else /* defined(CONFIG_PERF_EVENTS) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,99)) */
+
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
 static inline struct perf_event *
 wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr,
 				int cpu,
@@ -41,6 +43,29 @@ wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr,
 {
 	return perf_event_create_kernel_counter(attr, cpu, task, callback);
 }
+#else /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) */
+static inline struct perf_event *
+wrapper_perf_event_create_kernel_counter(struct perf_event_attr *attr,
+				int cpu,
+				struct task_struct *task,
+				perf_overflow_handler_t callback)
+{
+	pid_t pid;
+
+	if (!task)
+		pid = -1;
+	else
+		pid = task->pid;
+
+	return perf_event_create_kernel_counter(attr, cpu, pid, callback);
+}
+
+#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)) */
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,36))
+#define local64_read(l)		atomic64_read(l)
 #endif
 
+#endif /* defined(CONFIG_PERF_EVENTS) && (LINUX_VERSION_CODE >= KERNEL_VERSION(3,0,99)) */
+
 #endif /* _LTTNG_WRAPPER_PERF_H */