tracing: Add a probe that attaches to trace events

[linux-2.6-microblaze.git] / kernel / trace / trace_probe.h

diff --git a/kernel/trace/trace_probe.h b/kernel/trace/trace_probe.h
index 66701a9..99e7a5d 100644 (file)
--- a/kernel/trace/trace_probe.h
+++ b/kernel/trace/trace_probe.h
@@ -38,6 +38,7 @@
 #define FIELD_STRING_IP                "__probe_ip"
 #define FIELD_STRING_RETIP     "__probe_ret_ip"
 #define FIELD_STRING_FUNC      "__probe_func"
+#define FIELD_STRING_TYPE      "__probe_type"
 
 #undef DEFINE_FIELD
 #define DEFINE_FIELD(type, item, name, is_signed)                      \
@@ -102,6 +103,7 @@ enum fetch_op {
        FETCH_OP_MOD_BF,        /* Bitfield: .basesize, .lshift, .rshift */
        // Stage 5 (loop) op
        FETCH_OP_LP_ARRAY,      /* Array: .param = loop count */
+       FETCH_OP_TP_ARG,        /* Trace Point argument */
        FETCH_OP_END,
        FETCH_NOP_SYMBOL,       /* Unresolved Symbol holder */
 };
@@ -351,7 +353,8 @@ int trace_probe_create(const char *raw_command, int (*createfn)(int, const char
 #define TPARG_FL_RETURN BIT(0)
 #define TPARG_FL_KERNEL BIT(1)
 #define TPARG_FL_FENTRY BIT(2)
-#define TPARG_FL_MASK  GENMASK(2, 0)
+#define TPARG_FL_TPOINT BIT(3)
+#define TPARG_FL_MASK  GENMASK(3, 0)
 
 extern int traceprobe_parse_probe_arg(struct trace_probe *tp, int i,
                                const char *argv, unsigned int flags);
@@ -366,6 +369,7 @@ int traceprobe_parse_event_name(const char **pevent, const char **pgroup,
 enum probe_print_type {
        PROBE_PRINT_NORMAL,
        PROBE_PRINT_RETURN,
+       PROBE_PRINT_EVENT,
 };
 
 extern int traceprobe_set_print_fmt(struct trace_probe *tp, enum probe_print_type ptype);