1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _PERF_UTIL_TRACE_EVENT_H 3 #define _PERF_UTIL_TRACE_EVENT_H 4 5 #include <stdbool.h> 6 #include <stdio.h> 7 #include <sys/types.h> 8 #include <linux/types.h> 9 10 struct evlist; 11 struct machine; 12 struct perf_sample; 13 union perf_event; 14 struct perf_tool; 15 struct thread; 16 struct tep_plugin_list; 17 struct evsel; 18 19 struct trace_event { 20 struct tep_handle *pevent; 21 struct tep_plugin_list *plugin_list; 22 }; 23 24 /* Computes a version number comparable with LIBTRACEEVENT_VERSION from Makefile.config. */ 25 #define MAKE_LIBTRACEEVENT_VERSION(a, b, c) ((a)*255*255+(b)*255+(c)) 26 27 typedef char *(tep_func_resolver_t)(void *priv, 28 unsigned long long *addrp, char **modp); 29 30 bool have_tracepoints(struct list_head *evlist); 31 32 int trace_event__init(struct trace_event *t); 33 void trace_event__cleanup(struct trace_event *t); 34 int trace_event__register_resolver(struct machine *machine, 35 tep_func_resolver_t *func); 36 struct tep_event* 37 trace_event__tp_format(const char *sys, const char *name); 38 39 struct tep_event *trace_event__tp_format_id(int id); 40 41 void event_format__fprintf(struct tep_event *event, 42 int cpu, void *data, int size, FILE *fp); 43 44 void event_format__print(struct tep_event *event, 45 int cpu, void *data, int size); 46 47 int parse_ftrace_file(struct tep_handle *pevent, char *buf, unsigned long size); 48 int parse_event_file(struct tep_handle *pevent, 49 char *buf, unsigned long size, char *sys); 50 51 unsigned long long 52 raw_field_value(struct tep_event *event, const char *name, void *data); 53 54 void parse_proc_kallsyms(struct tep_handle *pevent, char *file, unsigned int size); 55 void parse_ftrace_printk(struct tep_handle *pevent, char *file, unsigned int size); 56 void parse_saved_cmdline(struct tep_handle *pevent, char *file, unsigned int size); 57 58 ssize_t trace_report(int fd, struct trace_event *tevent, bool repipe); 59 60 unsigned long long read_size(struct tep_event *event, void *ptr, int size); 61 unsigned long long eval_flag(const char *flag); 62 63 int read_tracing_data(int fd, struct list_head *pattrs); 64 65 struct tracing_data { 66 /* size is only valid if temp is 'true' */ 67 ssize_t size; 68 bool temp; 69 char temp_file[50]; 70 }; 71 72 struct tracing_data *tracing_data_get(struct list_head *pattrs, 73 int fd, bool temp); 74 int tracing_data_put(struct tracing_data *tdata); 75 76 77 struct addr_location; 78 79 struct perf_session; 80 struct perf_stat_config; 81 82 struct scripting_ops { 83 const char *name; 84 const char *dirname; /* For script path .../scripts/<dirname>/... */ 85 int (*start_script)(const char *script, int argc, const char **argv, 86 struct perf_session *session); 87 int (*flush_script) (void); 88 int (*stop_script) (void); 89 void (*process_event) (union perf_event *event, 90 struct perf_sample *sample, 91 struct evsel *evsel, 92 struct addr_location *al, 93 struct addr_location *addr_al); 94 void (*process_switch)(union perf_event *event, 95 struct perf_sample *sample, 96 struct machine *machine); 97 void (*process_auxtrace_error)(struct perf_session *session, 98 union perf_event *event); 99 void (*process_stat)(struct perf_stat_config *config, 100 struct evsel *evsel, u64 tstamp); 101 void (*process_stat_interval)(u64 tstamp); 102 void (*process_throttle)(union perf_event *event, 103 struct perf_sample *sample, 104 struct machine *machine); 105 int (*generate_script) (struct tep_handle *pevent, const char *outfile); 106 }; 107 108 extern unsigned int scripting_max_stack; 109 110 int script_spec_register(const char *spec, struct scripting_ops *ops); 111 112 void script_fetch_insn(struct perf_sample *sample, struct thread *thread, 113 struct machine *machine); 114 115 void setup_perl_scripting(void); 116 void setup_python_scripting(void); 117 118 struct scripting_context { 119 struct tep_handle *pevent; 120 void *event_data; 121 union perf_event *event; 122 struct perf_sample *sample; 123 struct evsel *evsel; 124 struct addr_location *al; 125 struct addr_location *addr_al; 126 struct perf_session *session; 127 }; 128 129 void scripting_context__update(struct scripting_context *scripting_context, 130 union perf_event *event, 131 struct perf_sample *sample, 132 struct evsel *evsel, 133 struct addr_location *al, 134 struct addr_location *addr_al); 135 136 int common_pc(struct scripting_context *context); 137 int common_flags(struct scripting_context *context); 138 int common_lock_depth(struct scripting_context *context); 139 140 #define SAMPLE_FLAGS_BUF_SIZE 64 141 int perf_sample__sprintf_flags(u32 flags, char *str, size_t sz); 142 143 #if defined(LIBTRACEEVENT_VERSION) && LIBTRACEEVENT_VERSION >= MAKE_LIBTRACEEVENT_VERSION(1, 5, 0) 144 #include <traceevent/event-parse.h> 145 146 static inline bool tep_field_is_relative(unsigned long flags) 147 { 148 return (flags & TEP_FIELD_IS_RELATIVE) != 0; 149 } 150 #else 151 #include <linux/compiler.h> 152 153 static inline bool tep_field_is_relative(unsigned long flags __maybe_unused) 154 { 155 return false; 156 } 157 #endif 158 159 #endif /* _PERF_UTIL_TRACE_EVENT_H */ 160