1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __PERF_SYNTHETIC_EVENTS_H
3 #define __PERF_SYNTHETIC_EVENTS_H
4 
5 #include <stdbool.h>
6 #include <sys/types.h> // pid_t
7 #include <linux/compiler.h>
8 #include <linux/types.h>
9 #include <perf/cpumap.h>
10 
11 struct auxtrace_record;
12 struct dso;
13 struct evlist;
14 struct evsel;
15 struct machine;
16 struct perf_counts_values;
17 struct perf_cpu_map;
18 struct perf_data;
19 struct perf_event_attr;
20 struct perf_event_mmap_page;
21 struct perf_sample;
22 struct perf_session;
23 struct perf_stat_config;
24 struct perf_thread_map;
25 struct perf_tool;
26 struct record_opts;
27 struct target;
28 
29 union perf_event;
30 
31 enum perf_record_synth {
32 	PERF_SYNTH_TASK		= 1 << 0,
33 	PERF_SYNTH_MMAP		= 1 << 1,
34 	PERF_SYNTH_CGROUP	= 1 << 2,
35 
36 	/* last element */
37 	PERF_SYNTH_MAX		= 1 << 3,
38 };
39 #define PERF_SYNTH_ALL  (PERF_SYNTH_MAX - 1)
40 
41 int parse_synth_opt(char *str);
42 
43 typedef int (*perf_event__handler_t)(struct perf_tool *tool, union perf_event *event,
44 				     struct perf_sample *sample, struct machine *machine);
45 
46 int perf_event__synthesize_attrs(struct perf_tool *tool, struct evlist *evlist, perf_event__handler_t process);
47 int perf_event__synthesize_attr(struct perf_tool *tool, struct perf_event_attr *attr, u32 ids, u64 *id, perf_event__handler_t process);
48 int perf_event__synthesize_build_id(struct perf_tool *tool, struct dso *pos, u16 misc, perf_event__handler_t process, struct machine *machine);
49 int perf_event__synthesize_cpu_map(struct perf_tool *tool, struct perf_cpu_map *cpus, perf_event__handler_t process, struct machine *machine);
50 int perf_event__synthesize_event_update_cpus(struct perf_tool *tool, struct evsel *evsel, perf_event__handler_t process);
51 int perf_event__synthesize_event_update_name(struct perf_tool *tool, struct evsel *evsel, perf_event__handler_t process);
52 int perf_event__synthesize_event_update_scale(struct perf_tool *tool, struct evsel *evsel, perf_event__handler_t process);
53 int perf_event__synthesize_event_update_unit(struct perf_tool *tool, struct evsel *evsel, perf_event__handler_t process);
54 int perf_event__synthesize_extra_attr(struct perf_tool *tool, struct evlist *evsel_list, perf_event__handler_t process, bool is_pipe);
55 int perf_event__synthesize_extra_kmaps(struct perf_tool *tool, perf_event__handler_t process, struct machine *machine);
56 int perf_event__synthesize_features(struct perf_tool *tool, struct perf_session *session, struct evlist *evlist, perf_event__handler_t process);
57 int perf_event__synthesize_id_index(struct perf_tool *tool, perf_event__handler_t process, struct evlist *evlist, struct machine *machine);
58 int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, perf_event__handler_t process, struct machine *machine);
59 int perf_event__synthesize_mmap_events(struct perf_tool *tool, union perf_event *event, pid_t pid, pid_t tgid, perf_event__handler_t process, struct machine *machine, bool mmap_data);
60 int perf_event__synthesize_modules(struct perf_tool *tool, perf_event__handler_t process, struct machine *machine);
61 int perf_event__synthesize_namespaces(struct perf_tool *tool, union perf_event *event, pid_t pid, pid_t tgid, perf_event__handler_t process, struct machine *machine);
62 int perf_event__synthesize_cgroups(struct perf_tool *tool, perf_event__handler_t process, struct machine *machine);
63 int perf_event__synthesize_sample(union perf_event *event, u64 type, u64 read_format, const struct perf_sample *sample);
64 int perf_event__synthesize_stat_config(struct perf_tool *tool, struct perf_stat_config *config, perf_event__handler_t process, struct machine *machine);
65 int perf_event__synthesize_stat_events(struct perf_stat_config *config, struct perf_tool *tool, struct evlist *evlist, perf_event__handler_t process, bool attrs);
66 int perf_event__synthesize_stat_round(struct perf_tool *tool, u64 time, u64 type, perf_event__handler_t process, struct machine *machine);
67 int perf_event__synthesize_stat(struct perf_tool *tool, struct perf_cpu cpu, u32 thread, u64 id, struct perf_counts_values *count, perf_event__handler_t process, struct machine *machine);
68 int perf_event__synthesize_thread_map2(struct perf_tool *tool, struct perf_thread_map *threads, perf_event__handler_t process, struct machine *machine);
69 int perf_event__synthesize_thread_map(struct perf_tool *tool, struct perf_thread_map *threads, perf_event__handler_t process, struct machine *machine, bool needs_mmap, bool mmap_data);
70 int perf_event__synthesize_threads(struct perf_tool *tool, perf_event__handler_t process, struct machine *machine, bool needs_mmap, bool mmap_data, unsigned int nr_threads_synthesize);
71 int perf_event__synthesize_tracing_data(struct perf_tool *tool, int fd, struct evlist *evlist, perf_event__handler_t process);
72 int perf_event__synth_time_conv(const struct perf_event_mmap_page *pc, struct perf_tool *tool, perf_event__handler_t process, struct machine *machine);
73 pid_t perf_event__synthesize_comm(struct perf_tool *tool, union perf_event *event, pid_t pid, perf_event__handler_t process, struct machine *machine);
74 
75 int perf_tool__process_synth_event(struct perf_tool *tool, union perf_event *event, struct machine *machine, perf_event__handler_t process);
76 
77 size_t perf_event__sample_event_size(const struct perf_sample *sample, u64 type, u64 read_format);
78 
79 int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
80 				  struct target *target, struct perf_thread_map *threads,
81 				  perf_event__handler_t process, bool needs_mmap, bool data_mmap,
82 				  unsigned int nr_threads_synthesize);
83 int machine__synthesize_threads(struct machine *machine, struct target *target,
84 				struct perf_thread_map *threads, bool needs_mmap, bool data_mmap,
85 				unsigned int nr_threads_synthesize);
86 
87 #ifdef HAVE_AUXTRACE_SUPPORT
88 int perf_event__synthesize_auxtrace_info(struct auxtrace_record *itr, struct perf_tool *tool,
89 					 struct perf_session *session, perf_event__handler_t process);
90 
91 #else // HAVE_AUXTRACE_SUPPORT
92 
93 #include <errno.h>
94 
95 static inline int
96 perf_event__synthesize_auxtrace_info(struct auxtrace_record *itr __maybe_unused,
97 				     struct perf_tool *tool __maybe_unused,
98 				     struct perf_session *session __maybe_unused,
99 				     perf_event__handler_t process __maybe_unused)
100 {
101 	return -EINVAL;
102 }
103 #endif // HAVE_AUXTRACE_SUPPORT
104 
105 #ifdef HAVE_LIBBPF_SUPPORT
106 int perf_event__synthesize_bpf_events(struct perf_session *session, perf_event__handler_t process,
107 				      struct machine *machine, struct record_opts *opts);
108 #else // HAVE_LIBBPF_SUPPORT
109 static inline int perf_event__synthesize_bpf_events(struct perf_session *session __maybe_unused,
110 						    perf_event__handler_t process __maybe_unused,
111 						    struct machine *machine __maybe_unused,
112 						    struct record_opts *opts __maybe_unused)
113 {
114 	return 0;
115 }
116 #endif // HAVE_LIBBPF_SUPPORT
117 
118 int perf_event__synthesize_for_pipe(struct perf_tool *tool,
119 				    struct perf_session *session,
120 				    struct perf_data *data,
121 				    perf_event__handler_t process);
122 
123 #endif // __PERF_SYNTHETIC_EVENTS_H
124