Add page_fault_entry and page_fault_exit event definitions. It will
allow each architecture to instrument their page faults.
Signed-off-by: Francis Deslauriers <fdesl...@gmail.com>
Reviewed-by: Raphaël Beamonte <raphael.beamo...@gmail.com>
---
include/trace/events/fault.h | 51 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 51 insertions(+)
create mode 100644 include/trace/events/fault.h
diff --git a/include/trace/events/fault.h b/include/trace/events/fault.h
new file mode 100644
index 0000000..522ddee
--- /dev/null
+++ b/include/trace/events/fault.h
@@ -0,0 +1,51 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM fault
+
+#if !defined(_TRACE_FAULT_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_FAULT_H
+
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(page_fault_entry,
+
+ TP_PROTO(struct pt_regs *regs, unsigned long address,
+ int write_access),
+
+ TP_ARGS(regs, address, write_access),
+
+ TP_STRUCT__entry(
+ __field( unsigned long, ip )
+ __field( unsigned long, addr )
+ __field( uint8_t, write )
+ ),
+
+ TP_fast_assign(
+ __entry->ip = regs ? instruction_pointer(regs) : 0UL;
+ __entry->addr = address;
+ __entry->write = !!write_access;
+ ),
+
+ TP_printk("ip=%lu addr=%lu write_access=%d",
+ __entry->ip, __entry->addr, __entry->write)
+);
+
+TRACE_EVENT(page_fault_exit,
+
+ TP_PROTO(int result),
+
+ TP_ARGS(result),
+
+ TP_STRUCT__entry(
+ __field( int, res )
+ ),
+
+ TP_fast_assign(
+ __entry->res = result;
+ ),
+
+ TP_printk("result=%d", __entry->res)
+);
+
+#endif /* _TRACE_FAULT_H */
+/* This part must be outside protection */
+#include <trace/define_trace.h>
--
1.7.10.4
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