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-rw-r--r--tools/perf/util/trace-event.h165
1 files changed, 165 insertions, 0 deletions
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
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+++ b/tools/perf/util/trace-event.h
@@ -0,0 +1,165 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _PERF_UTIL_TRACE_EVENT_H
+#define _PERF_UTIL_TRACE_EVENT_H
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <linux/types.h>
+
+struct evlist;
+struct machine;
+struct perf_sample;
+union perf_event;
+struct perf_tool;
+struct thread;
+struct tep_plugin_list;
+struct evsel;
+
+struct trace_event {
+ struct tep_handle *pevent;
+ struct tep_plugin_list *plugin_list;
+};
+
+/* Computes a version number comparable with LIBTRACEEVENT_VERSION from Makefile.config. */
+#define MAKE_LIBTRACEEVENT_VERSION(a, b, c) ((a)*255*255+(b)*255+(c))
+
+typedef char *(tep_func_resolver_t)(void *priv,
+ unsigned long long *addrp, char **modp);
+
+bool have_tracepoints(struct list_head *evlist);
+
+int trace_event__init(struct trace_event *t);
+void trace_event__cleanup(struct trace_event *t);
+int trace_event__register_resolver(struct machine *machine,
+ tep_func_resolver_t *func);
+struct tep_event*
+trace_event__tp_format(const char *sys, const char *name);
+
+struct tep_event *trace_event__tp_format_id(int id);
+
+void event_format__fprintf(struct tep_event *event,
+ int cpu, void *data, int size, FILE *fp);
+
+void event_format__print(struct tep_event *event,
+ int cpu, void *data, int size);
+
+int parse_ftrace_file(struct tep_handle *pevent, char *buf, unsigned long size);
+int parse_event_file(struct tep_handle *pevent,
+ char *buf, unsigned long size, char *sys);
+
+unsigned long long
+raw_field_value(struct tep_event *event, const char *name, void *data);
+
+void parse_proc_kallsyms(struct tep_handle *pevent, char *file, unsigned int size);
+void parse_ftrace_printk(struct tep_handle *pevent, char *file, unsigned int size);
+void parse_saved_cmdline(struct tep_handle *pevent, char *file, unsigned int size);
+
+ssize_t trace_report(int fd, struct trace_event *tevent, bool repipe);
+
+unsigned long long read_size(struct tep_event *event, void *ptr, int size);
+unsigned long long eval_flag(const char *flag);
+
+int read_tracing_data(int fd, struct list_head *pattrs);
+
+/*
+ * Return the tracepoint name in the format "subsystem:event_name",
+ * callers should free the returned string.
+ */
+char *tracepoint_id_to_name(u64 config);
+
+struct tracing_data {
+ /* size is only valid if temp is 'true' */
+ ssize_t size;
+ bool temp;
+ char temp_file[50];
+};
+
+struct tracing_data *tracing_data_get(struct list_head *pattrs,
+ int fd, bool temp);
+int tracing_data_put(struct tracing_data *tdata);
+
+
+struct addr_location;
+
+struct perf_session;
+struct perf_stat_config;
+
+struct scripting_ops {
+ const char *name;
+ const char *dirname; /* For script path .../scripts/<dirname>/... */
+ int (*start_script)(const char *script, int argc, const char **argv,
+ struct perf_session *session);
+ int (*flush_script) (void);
+ int (*stop_script) (void);
+ void (*process_event) (union perf_event *event,
+ struct perf_sample *sample,
+ struct evsel *evsel,
+ struct addr_location *al,
+ struct addr_location *addr_al);
+ void (*process_switch)(union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine);
+ void (*process_auxtrace_error)(struct perf_session *session,
+ union perf_event *event);
+ void (*process_stat)(struct perf_stat_config *config,
+ struct evsel *evsel, u64 tstamp);
+ void (*process_stat_interval)(u64 tstamp);
+ void (*process_throttle)(union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine);
+ int (*generate_script) (struct tep_handle *pevent, const char *outfile);
+};
+
+extern unsigned int scripting_max_stack;
+
+int script_spec_register(const char *spec, struct scripting_ops *ops);
+
+void script_fetch_insn(struct perf_sample *sample, struct thread *thread,
+ struct machine *machine);
+
+void setup_perl_scripting(void);
+void setup_python_scripting(void);
+
+struct scripting_context {
+ struct tep_handle *pevent;
+ void *event_data;
+ union perf_event *event;
+ struct perf_sample *sample;
+ struct evsel *evsel;
+ struct addr_location *al;
+ struct addr_location *addr_al;
+ struct perf_session *session;
+};
+
+void scripting_context__update(struct scripting_context *scripting_context,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct evsel *evsel,
+ struct addr_location *al,
+ struct addr_location *addr_al);
+
+int common_pc(struct scripting_context *context);
+int common_flags(struct scripting_context *context);
+int common_lock_depth(struct scripting_context *context);
+
+#define SAMPLE_FLAGS_BUF_SIZE 64
+int perf_sample__sprintf_flags(u32 flags, char *str, size_t sz);
+
+#if defined(LIBTRACEEVENT_VERSION) && LIBTRACEEVENT_VERSION >= MAKE_LIBTRACEEVENT_VERSION(1, 5, 0)
+#include <traceevent/event-parse.h>
+
+static inline bool tep_field_is_relative(unsigned long flags)
+{
+ return (flags & TEP_FIELD_IS_RELATIVE) != 0;
+}
+#else
+#include <linux/compiler.h>
+
+static inline bool tep_field_is_relative(unsigned long flags __maybe_unused)
+{
+ return false;
+}
+#endif
+
+#endif /* _PERF_UTIL_TRACE_EVENT_H */