simpletrace.h

   1 /*
   2  * Simple trace backend
   3  *
   4  * Copyright IBM, Corp. 2010
   5  *
   6  * This work is licensed under the terms of the GNU GPL, version 2.  See
   7  * the COPYING file in the top-level directory.
   8  *
   9  */
  10
  11 #ifndef SIMPLETRACE_H
  12 #define SIMPLETRACE_H
  13
  14 #include <stdint.h>
  15 #include <stdbool.h>
  16 #include <stdio.h>
  17
  18 #ifdef CONFIG_SIMPLE_TRACE
  19 typedef uint64_t TraceEventID;
  20
  21 typedef struct {
  22     const char *tp_name;
  23     bool state;
  24 } TraceEvent;
  25
  26 void trace0(TraceEventID event);
  27 void trace1(TraceEventID event, uint64_t x1);
  28 void trace2(TraceEventID event, uint64_t x1, uint64_t x2);
  29 void trace3(TraceEventID event, uint64_t x1, uint64_t x2, uint64_t x3);
  30 void trace4(TraceEventID event, uint64_t x1, uint64_t x2, uint64_t x3, uint64_t x4);
  31 void trace5(TraceEventID event, uint64_t x1, uint64_t x2, uint64_t x3, uint64_t x4, uint64_t x5);
  32 void trace6(TraceEventID event, uint64_t x1, uint64_t x2, uint64_t x3, uint64_t x4, uint64_t x5, uint64_t x6);
  33 void st_print_trace(FILE *stream, fprintf_function stream_printf);
  34 void st_print_trace_events(FILE *stream, fprintf_function stream_printf);
  35 bool st_change_trace_event_state(const char *tname, bool tstate);
  36 void st_print_trace_file_status(FILE *stream, fprintf_function stream_printf);
  37 void st_set_trace_file_enabled(bool enable);
  38 bool st_set_trace_file(const char *file);
  39 void st_flush_trace_buffer(void);
  40 bool st_init(const char *file);
  41 #else
  42 static inline bool st_init(const char *file)
  43 {
  44     return true;
  45 }
  46 #endif /* !CONFIG_SIMPLE_TRACE */
  47
  48 #endif /* SIMPLETRACE_H */