tracing: instrument restartable sequences

[deliverable/linux.git] / include / trace / events / rseq.h

diff --git a/include/trace/events/rseq.h b/include/trace/events/rseq.h
new file mode 100644 (file)
index 0000000..63a8eb7
--- /dev/null
+++ b/include/trace/events/rseq.h
@@ -0,0 +1,64 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM rseq
+
+#if !defined(_TRACE_RSEQ_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_RSEQ_H
+
+#include <linux/tracepoint.h>
+#include <linux/types.h>
+
+TRACE_EVENT(rseq_update,
+
+       TP_PROTO(struct task_struct *t),
+
+       TP_ARGS(t),
+
+       TP_STRUCT__entry(
+               __field(s32, cpu_id)
+               __field(u32, event_counter)
+       ),
+
+       TP_fast_assign(
+               __entry->cpu_id = raw_smp_processor_id();
+               __entry->event_counter = t->rseq_event_counter;
+       ),
+
+       TP_printk("cpu_id=%d event_counter=%u",
+               __entry->cpu_id, __entry->event_counter)
+);
+
+TRACE_EVENT(rseq_ip_fixup,
+
+       TP_PROTO(void __user *regs_ip, void __user *start_ip,
+               void __user *post_commit_ip, void __user *abort_ip,
+               u32 kevcount, int ret),
+
+       TP_ARGS(regs_ip, start_ip, post_commit_ip, abort_ip, kevcount, ret),
+
+       TP_STRUCT__entry(
+               __field(void __user *, regs_ip)
+               __field(void __user *, start_ip)
+               __field(void __user *, post_commit_ip)
+               __field(void __user *, abort_ip)
+               __field(u32, kevcount)
+               __field(int, ret)
+       ),
+
+       TP_fast_assign(
+               __entry->regs_ip = regs_ip;
+               __entry->start_ip = start_ip;
+               __entry->post_commit_ip = post_commit_ip;
+               __entry->abort_ip = abort_ip;
+               __entry->kevcount = kevcount;
+               __entry->ret = ret;
+       ),
+
+       TP_printk("regs_ip=%p start_ip=%p post_commit_ip=%p abort_ip=%p kevcount=%u ret=%d",
+               __entry->regs_ip, __entry->start_ip, __entry->post_commit_ip,
+               __entry->abort_ip, __entry->kevcount, __entry->ret)
+);
+
+#endif /* _TRACE_SOCK_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>