tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef __PERF_RECORD_H
2#define __PERF_RECORD_H
3
4#include <limits.h>
5#include <stdio.h>
6
7#include "../perf.h"
8#include "map.h"
9#include "build-id.h"
10
11struct mmap_event {
12 struct perf_event_header header;
13 u32 pid, tid;
14 u64 start;
15 u64 len;
16 u64 pgoff;
17 char filename[PATH_MAX];
18};
19
20struct mmap2_event {
21 struct perf_event_header header;
22 u32 pid, tid;
23 u64 start;
24 u64 len;
25 u64 pgoff;
26 u32 maj;
27 u32 min;
28 u64 ino;
29 u64 ino_generation;
30 char filename[PATH_MAX];
31};
32
33struct comm_event {
34 struct perf_event_header header;
35 u32 pid, tid;
36 char comm[16];
37};
38
39struct fork_event {
40 struct perf_event_header header;
41 u32 pid, ppid;
42 u32 tid, ptid;
43 u64 time;
44};
45
46struct lost_event {
47 struct perf_event_header header;
48 u64 id;
49 u64 lost;
50};
51
52/*
53 * PERF_FORMAT_ENABLED | PERF_FORMAT_RUNNING | PERF_FORMAT_ID
54 */
55struct read_event {
56 struct perf_event_header header;
57 u32 pid, tid;
58 u64 value;
59 u64 time_enabled;
60 u64 time_running;
61 u64 id;
62};
63
64struct throttle_event {
65 struct perf_event_header header;
66 u64 time;
67 u64 id;
68 u64 stream_id;
69};
70
71#define PERF_SAMPLE_MASK \
72 (PERF_SAMPLE_IP | PERF_SAMPLE_TID | \
73 PERF_SAMPLE_TIME | PERF_SAMPLE_ADDR | \
74 PERF_SAMPLE_ID | PERF_SAMPLE_STREAM_ID | \
75 PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD | \
76 PERF_SAMPLE_IDENTIFIER)
77
78/* perf sample has 16 bits size limit */
79#define PERF_SAMPLE_MAX_SIZE (1 << 16)
80
81struct sample_event {
82 struct perf_event_header header;
83 u64 array[];
84};
85
86struct regs_dump {
87 u64 abi;
88 u64 mask;
89 u64 *regs;
90};
91
92struct stack_dump {
93 u16 offset;
94 u64 size;
95 char *data;
96};
97
98struct sample_read_value {
99 u64 value;
100 u64 id;
101};
102
103struct sample_read {
104 u64 time_enabled;
105 u64 time_running;
106 union {
107 struct {
108 u64 nr;
109 struct sample_read_value *values;
110 } group;
111 struct sample_read_value one;
112 };
113};
114
115struct perf_sample {
116 u64 ip;
117 u32 pid, tid;
118 u64 time;
119 u64 addr;
120 u64 id;
121 u64 stream_id;
122 u64 period;
123 u64 weight;
124 u64 transaction;
125 u32 cpu;
126 u32 raw_size;
127 u64 data_src;
128 void *raw_data;
129 struct ip_callchain *callchain;
130 struct branch_stack *branch_stack;
131 struct regs_dump user_regs;
132 struct stack_dump user_stack;
133 struct sample_read read;
134};
135
136#define PERF_MEM_DATA_SRC_NONE \
137 (PERF_MEM_S(OP, NA) |\
138 PERF_MEM_S(LVL, NA) |\
139 PERF_MEM_S(SNOOP, NA) |\
140 PERF_MEM_S(LOCK, NA) |\
141 PERF_MEM_S(TLB, NA))
142
143struct build_id_event {
144 struct perf_event_header header;
145 pid_t pid;
146 u8 build_id[PERF_ALIGN(BUILD_ID_SIZE, sizeof(u64))];
147 char filename[];
148};
149
150enum perf_user_event_type { /* above any possible kernel type */
151 PERF_RECORD_USER_TYPE_START = 64,
152 PERF_RECORD_HEADER_ATTR = 64,
153 PERF_RECORD_HEADER_EVENT_TYPE = 65, /* depreceated */
154 PERF_RECORD_HEADER_TRACING_DATA = 66,
155 PERF_RECORD_HEADER_BUILD_ID = 67,
156 PERF_RECORD_FINISHED_ROUND = 68,
157 PERF_RECORD_HEADER_MAX
158};
159
160struct attr_event {
161 struct perf_event_header header;
162 struct perf_event_attr attr;
163 u64 id[];
164};
165
166#define MAX_EVENT_NAME 64
167
168struct perf_trace_event_type {
169 u64 event_id;
170 char name[MAX_EVENT_NAME];
171};
172
173struct event_type_event {
174 struct perf_event_header header;
175 struct perf_trace_event_type event_type;
176};
177
178struct tracing_data_event {
179 struct perf_event_header header;
180 u32 size;
181};
182
183union perf_event {
184 struct perf_event_header header;
185 struct mmap_event mmap;
186 struct mmap2_event mmap2;
187 struct comm_event comm;
188 struct fork_event fork;
189 struct lost_event lost;
190 struct read_event read;
191 struct throttle_event throttle;
192 struct sample_event sample;
193 struct attr_event attr;
194 struct event_type_event event_type;
195 struct tracing_data_event tracing_data;
196 struct build_id_event build_id;
197};
198
199void perf_event__print_totals(void);
200
201struct perf_tool;
202struct thread_map;
203
204typedef int (*perf_event__handler_t)(struct perf_tool *tool,
205 union perf_event *event,
206 struct perf_sample *sample,
207 struct machine *machine);
208
209int perf_event__synthesize_thread_map(struct perf_tool *tool,
210 struct thread_map *threads,
211 perf_event__handler_t process,
212 struct machine *machine, bool mmap_data);
213int perf_event__synthesize_threads(struct perf_tool *tool,
214 perf_event__handler_t process,
215 struct machine *machine, bool mmap_data);
216int perf_event__synthesize_kernel_mmap(struct perf_tool *tool,
217 perf_event__handler_t process,
218 struct machine *machine);
219
220int perf_event__synthesize_modules(struct perf_tool *tool,
221 perf_event__handler_t process,
222 struct machine *machine);
223
224int perf_event__process_comm(struct perf_tool *tool,
225 union perf_event *event,
226 struct perf_sample *sample,
227 struct machine *machine);
228int perf_event__process_lost(struct perf_tool *tool,
229 union perf_event *event,
230 struct perf_sample *sample,
231 struct machine *machine);
232int perf_event__process_mmap(struct perf_tool *tool,
233 union perf_event *event,
234 struct perf_sample *sample,
235 struct machine *machine);
236int perf_event__process_mmap2(struct perf_tool *tool,
237 union perf_event *event,
238 struct perf_sample *sample,
239 struct machine *machine);
240int perf_event__process_fork(struct perf_tool *tool,
241 union perf_event *event,
242 struct perf_sample *sample,
243 struct machine *machine);
244int perf_event__process_exit(struct perf_tool *tool,
245 union perf_event *event,
246 struct perf_sample *sample,
247 struct machine *machine);
248int perf_event__process(struct perf_tool *tool,
249 union perf_event *event,
250 struct perf_sample *sample,
251 struct machine *machine);
252
253struct addr_location;
254
255int perf_event__preprocess_sample(const union perf_event *event,
256 struct machine *machine,
257 struct addr_location *al,
258 struct perf_sample *sample);
259
260const char *perf_event__name(unsigned int id);
261
262size_t perf_event__sample_event_size(const struct perf_sample *sample, u64 type,
263 u64 read_format);
264int perf_event__synthesize_sample(union perf_event *event, u64 type,
265 u64 read_format,
266 const struct perf_sample *sample,
267 bool swapped);
268
269int perf_event__synthesize_mmap_events(struct perf_tool *tool,
270 union perf_event *event,
271 pid_t pid, pid_t tgid,
272 perf_event__handler_t process,
273 struct machine *machine,
274 bool mmap_data);
275
276size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp);
277size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp);
278size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp);
279size_t perf_event__fprintf_task(union perf_event *event, FILE *fp);
280size_t perf_event__fprintf(union perf_event *event, FILE *fp);
281
282u64 kallsyms__get_function_start(const char *kallsyms_filename,
283 const char *symbol_name);
284
285#endif /* __PERF_RECORD_H */