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-rw-r--r--include/linux/ftrace_event.h10
-rw-r--r--include/linux/tracepoint.h12
-rw-r--r--include/trace/define_trace.h1
-rw-r--r--include/trace/events/sched.h12
-rw-r--r--include/trace/ftrace.h31
5 files changed, 52 insertions, 14 deletions
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index df5b085..ace2da9 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -140,9 +140,17 @@ extern int filter_current_check_discard(struct ftrace_event_call *call,
void *rec,
struct ring_buffer_event *event);
+enum {
+ FILTER_OTHER = 0,
+ FILTER_STATIC_STRING,
+ FILTER_DYN_STRING,
+ FILTER_PTR_STRING,
+};
+
extern int trace_define_field(struct ftrace_event_call *call,
const char *type, const char *name,
- int offset, int size, int is_signed);
+ int offset, int size, int is_signed,
+ int filter_type);
extern int trace_define_common_fields(struct ftrace_event_call *call);
#define is_signed_type(type) (((type)(-1)) < 0)
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index 846a4ae..63a3f7a 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -165,6 +165,15 @@ static inline void tracepoint_synchronize_unregister(void)
#define PARAMS(args...) args
+#endif /* _LINUX_TRACEPOINT_H */
+
+/*
+ * Note: we keep the TRACE_EVENT outside the include file ifdef protection.
+ * This is due to the way trace events work. If a file includes two
+ * trace event headers under one "CREATE_TRACE_POINTS" the first include
+ * will override the TRACE_EVENT and break the second include.
+ */
+
#ifndef TRACE_EVENT
/*
* For use with the TRACE_EVENT macro:
@@ -276,6 +285,5 @@ static inline void tracepoint_synchronize_unregister(void)
#define TRACE_EVENT_FN(name, proto, args, struct, \
assign, print, reg, unreg) \
DECLARE_TRACE(name, PARAMS(proto), PARAMS(args))
-#endif
-#endif
+#endif /* ifdef TRACE_EVENT (see note above) */
diff --git a/include/trace/define_trace.h b/include/trace/define_trace.h
index 2a96985..a89ed59 100644
--- a/include/trace/define_trace.h
+++ b/include/trace/define_trace.h
@@ -61,6 +61,7 @@
#include <trace/ftrace.h>
#endif
+#undef TRACE_EVENT
#undef TRACE_HEADER_MULTI_READ
/* Only undef what we defined in this file */
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 8949bb7..a581ef2 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -94,6 +94,7 @@ TRACE_EVENT(sched_wakeup,
__field( pid_t, pid )
__field( int, prio )
__field( int, success )
+ __field( int, cpu )
),
TP_fast_assign(
@@ -101,11 +102,12 @@ TRACE_EVENT(sched_wakeup,
__entry->pid = p->pid;
__entry->prio = p->prio;
__entry->success = success;
+ __entry->cpu = task_cpu(p);
),
- TP_printk("task %s:%d [%d] success=%d",
+ TP_printk("task %s:%d [%d] success=%d [%03d]",
__entry->comm, __entry->pid, __entry->prio,
- __entry->success)
+ __entry->success, __entry->cpu)
);
/*
@@ -125,6 +127,7 @@ TRACE_EVENT(sched_wakeup_new,
__field( pid_t, pid )
__field( int, prio )
__field( int, success )
+ __field( int, cpu )
),
TP_fast_assign(
@@ -132,11 +135,12 @@ TRACE_EVENT(sched_wakeup_new,
__entry->pid = p->pid;
__entry->prio = p->prio;
__entry->success = success;
+ __entry->cpu = task_cpu(p);
),
- TP_printk("task %s:%d [%d] success=%d",
+ TP_printk("task %s:%d [%d] success=%d [%03d]",
__entry->comm, __entry->pid, __entry->prio,
- __entry->success)
+ __entry->success, __entry->cpu)
);
/*
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 3a0b44b..360a77a 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -21,6 +21,9 @@
#undef __field
#define __field(type, item) type item;
+#undef __field_ext
+#define __field_ext(type, item, filter_type) type item;
+
#undef __array
#define __array(type, item, len) type item[len];
@@ -71,7 +74,10 @@
*/
#undef __field
-#define __field(type, item);
+#define __field(type, item)
+
+#undef __field_ext
+#define __field_ext(type, item, filter_type)
#undef __array
#define __array(type, item, len)
@@ -119,6 +125,9 @@
if (!ret) \
return 0;
+#undef __field_ext
+#define __field_ext(type, item, filter_type) __field(type, item)
+
#undef __array
#define __array(type, item, len) \
ret = trace_seq_printf(s, "\tfield:" #type " " #item "[" #len "];\t" \
@@ -274,28 +283,33 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
-#undef __field
-#define __field(type, item) \
+#undef __field_ext
+#define __field_ext(type, item, filter_type) \
ret = trace_define_field(event_call, #type, #item, \
offsetof(typeof(field), item), \
- sizeof(field.item), is_signed_type(type)); \
+ sizeof(field.item), \
+ is_signed_type(type), filter_type); \
if (ret) \
return ret;
+#undef __field
+#define __field(type, item) __field_ext(type, item, FILTER_OTHER)
+
#undef __array
#define __array(type, item, len) \
BUILD_BUG_ON(len > MAX_FILTER_STR_VAL); \
ret = trace_define_field(event_call, #type "[" #len "]", #item, \
offsetof(typeof(field), item), \
- sizeof(field.item), 0); \
+ sizeof(field.item), 0, FILTER_OTHER); \
if (ret) \
return ret;
#undef __dynamic_array
#define __dynamic_array(type, item, len) \
ret = trace_define_field(event_call, "__data_loc " #type "[]", #item, \
- offsetof(typeof(field), __data_loc_##item), \
- sizeof(field.__data_loc_##item), 0);
+ offsetof(typeof(field), __data_loc_##item), \
+ sizeof(field.__data_loc_##item), 0, \
+ FILTER_OTHER);
#undef __string
#define __string(item, src) __dynamic_array(char, item, -1)
@@ -329,6 +343,9 @@ ftrace_define_fields_##call(struct ftrace_event_call *event_call) \
#undef __field
#define __field(type, item)
+#undef __field_ext
+#define __field_ext(type, item, filter_type)
+
#undef __array
#define __array(type, item, len)
generated by cgit v1.1 at 2024-09-13 22:57:32 +0000