1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __PERF_RECORD_H
3 #define __PERF_RECORD_H
4 /*
5 * The linux/stddef.h isn't need here, but is needed for __always_inline used
6 * in files included from uapi/linux/perf_event.h such as
7 * /usr/include/linux/swab.h and /usr/include/linux/byteorder/little_endian.h,
8 * detected in at least musl libc, used in Alpine Linux. -acme
9 */
10 #include <stdio.h>
11 #include <linux/stddef.h>
12 #include <perf/event.h>
13 #include <linux/types.h>
14
15 struct dso;
16 struct machine;
17 struct perf_event_attr;
18 struct perf_sample;
19
20 #ifdef __LP64__
21 /*
22 * /usr/include/inttypes.h uses just 'lu' for PRIu64, but we end up defining
23 * __u64 as long long unsigned int, and then -Werror=format= kicks in and
24 * complains of the mismatched types, so use these two special extra PRI
25 * macros to overcome that.
26 */
27 #define PRI_lu64 "l" PRIu64
28 #define PRI_lx64 "l" PRIx64
29 #define PRI_ld64 "l" PRId64
30 #else
31 #define PRI_lu64 PRIu64
32 #define PRI_lx64 PRIx64
33 #define PRI_ld64 PRId64
34 #endif
35
36 #define PERF_SAMPLE_MASK \
37 (PERF_SAMPLE_IP | PERF_SAMPLE_TID | \
38 PERF_SAMPLE_TIME | PERF_SAMPLE_ADDR | \
39 PERF_SAMPLE_ID | PERF_SAMPLE_STREAM_ID | \
40 PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD | \
41 PERF_SAMPLE_IDENTIFIER)
42
43 /* perf sample has 16 bits size limit */
44 #define PERF_SAMPLE_MAX_SIZE (1 << 16)
45
46 struct ip_callchain {
47 u64 nr;
48 u64 ips[];
49 };
50
51 struct branch_stack;
52
53 enum {
54 PERF_IP_FLAG_BRANCH = 1ULL << 0,
55 PERF_IP_FLAG_CALL = 1ULL << 1,
56 PERF_IP_FLAG_RETURN = 1ULL << 2,
57 PERF_IP_FLAG_CONDITIONAL = 1ULL << 3,
58 PERF_IP_FLAG_SYSCALLRET = 1ULL << 4,
59 PERF_IP_FLAG_ASYNC = 1ULL << 5,
60 PERF_IP_FLAG_INTERRUPT = 1ULL << 6,
61 PERF_IP_FLAG_TX_ABORT = 1ULL << 7,
62 PERF_IP_FLAG_TRACE_BEGIN = 1ULL << 8,
63 PERF_IP_FLAG_TRACE_END = 1ULL << 9,
64 PERF_IP_FLAG_IN_TX = 1ULL << 10,
65 PERF_IP_FLAG_VMENTRY = 1ULL << 11,
66 PERF_IP_FLAG_VMEXIT = 1ULL << 12,
67 PERF_IP_FLAG_INTR_DISABLE = 1ULL << 13,
68 PERF_IP_FLAG_INTR_TOGGLE = 1ULL << 14,
69 };
70
71 #define PERF_IP_FLAG_CHARS "bcrosyiABExghDt"
72
73 #define PERF_BRANCH_MASK (\
74 PERF_IP_FLAG_BRANCH |\
75 PERF_IP_FLAG_CALL |\
76 PERF_IP_FLAG_RETURN |\
77 PERF_IP_FLAG_CONDITIONAL |\
78 PERF_IP_FLAG_SYSCALLRET |\
79 PERF_IP_FLAG_ASYNC |\
80 PERF_IP_FLAG_INTERRUPT |\
81 PERF_IP_FLAG_TX_ABORT |\
82 PERF_IP_FLAG_TRACE_BEGIN |\
83 PERF_IP_FLAG_TRACE_END |\
84 PERF_IP_FLAG_VMENTRY |\
85 PERF_IP_FLAG_VMEXIT)
86
87 #define PERF_MEM_DATA_SRC_NONE \
88 (PERF_MEM_S(OP, NA) |\
89 PERF_MEM_S(LVL, NA) |\
90 PERF_MEM_S(SNOOP, NA) |\
91 PERF_MEM_S(LOCK, NA) |\
92 PERF_MEM_S(TLB, NA) |\
93 PERF_MEM_S(LVLNUM, NA))
94
95 /* Attribute type for custom synthesized events */
96 #define PERF_TYPE_SYNTH (INT_MAX + 1U)
97
98 /* Attribute config for custom synthesized events */
99 enum perf_synth_id {
100 PERF_SYNTH_INTEL_PTWRITE,
101 PERF_SYNTH_INTEL_MWAIT,
102 PERF_SYNTH_INTEL_PWRE,
103 PERF_SYNTH_INTEL_EXSTOP,
104 PERF_SYNTH_INTEL_PWRX,
105 PERF_SYNTH_INTEL_CBR,
106 PERF_SYNTH_INTEL_PSB,
107 PERF_SYNTH_INTEL_EVT,
108 PERF_SYNTH_INTEL_IFLAG_CHG,
109 };
110
111 /*
112 * Raw data formats for synthesized events. Note that 4 bytes of padding are
113 * present to match the 'size' member of PERF_SAMPLE_RAW data which is always
114 * 8-byte aligned. That means we must dereference raw_data with an offset of 4.
115 * Refer perf_sample__synth_ptr() and perf_synth__raw_data(). It also means the
116 * structure sizes are 4 bytes bigger than the raw_size, refer
117 * perf_synth__raw_size().
118 */
119
120 struct perf_synth_intel_ptwrite {
121 u32 padding;
122 union {
123 struct {
124 u32 ip : 1,
125 reserved : 31;
126 };
127 u32 flags;
128 };
129 u64 payload;
130 };
131
132 struct perf_synth_intel_mwait {
133 u32 padding;
134 u32 reserved;
135 union {
136 struct {
137 u64 hints : 8,
138 reserved1 : 24,
139 extensions : 2,
140 reserved2 : 30;
141 };
142 u64 payload;
143 };
144 };
145
146 struct perf_synth_intel_pwre {
147 u32 padding;
148 u32 reserved;
149 union {
150 struct {
151 u64 reserved1 : 7,
152 hw : 1,
153 subcstate : 4,
154 cstate : 4,
155 reserved2 : 48;
156 };
157 u64 payload;
158 };
159 };
160
161 struct perf_synth_intel_exstop {
162 u32 padding;
163 union {
164 struct {
165 u32 ip : 1,
166 reserved : 31;
167 };
168 u32 flags;
169 };
170 };
171
172 struct perf_synth_intel_pwrx {
173 u32 padding;
174 u32 reserved;
175 union {
176 struct {
177 u64 deepest_cstate : 4,
178 last_cstate : 4,
179 wake_reason : 4,
180 reserved1 : 52;
181 };
182 u64 payload;
183 };
184 };
185
186 struct perf_synth_intel_cbr {
187 u32 padding;
188 union {
189 struct {
190 u32 cbr : 8,
191 reserved1 : 8,
192 max_nonturbo : 8,
193 reserved2 : 8;
194 };
195 u32 flags;
196 };
197 u32 freq;
198 u32 reserved3;
199 };
200
201 struct perf_synth_intel_psb {
202 u32 padding;
203 u32 reserved;
204 u64 offset;
205 };
206
207 struct perf_synth_intel_evd {
208 union {
209 struct {
210 u8 evd_type;
211 u8 reserved[7];
212 };
213 u64 et;
214 };
215 u64 payload;
216 };
217
218 /* Intel PT Event Trace */
219 struct perf_synth_intel_evt {
220 u32 padding;
221 union {
222 struct {
223 u32 type : 5,
224 reserved : 2,
225 ip : 1,
226 vector : 8,
227 evd_cnt : 16;
228 };
229 u32 cfe;
230 };
231 struct perf_synth_intel_evd evd[0];
232 };
233
234 struct perf_synth_intel_iflag_chg {
235 u32 padding;
236 union {
237 struct {
238 u32 iflag : 1,
239 via_branch : 1;
240 };
241 u32 flags;
242 };
243 u64 branch_ip; /* If via_branch */
244 };
245
perf_synth__raw_data(void * p)246 static inline void *perf_synth__raw_data(void *p)
247 {
248 return p + 4;
249 }
250
251 #define perf_synth__raw_size(d) (sizeof(d) - 4)
252
253 #define perf_sample__bad_synth_size(s, d) ((s)->raw_size < sizeof(d) - 4)
254
255 enum {
256 PERF_STAT_ROUND_TYPE__INTERVAL = 0,
257 PERF_STAT_ROUND_TYPE__FINAL = 1,
258 };
259
260 void perf_event__print_totals(void);
261
262 struct perf_cpu_map;
263 struct perf_record_stat_config;
264 struct perf_stat_config;
265 struct perf_tool;
266
267 void perf_event__read_stat_config(struct perf_stat_config *config,
268 struct perf_record_stat_config *event);
269
270 int perf_event__process_comm(struct perf_tool *tool,
271 union perf_event *event,
272 struct perf_sample *sample,
273 struct machine *machine);
274 int perf_event__process_lost(struct perf_tool *tool,
275 union perf_event *event,
276 struct perf_sample *sample,
277 struct machine *machine);
278 int perf_event__process_lost_samples(struct perf_tool *tool,
279 union perf_event *event,
280 struct perf_sample *sample,
281 struct machine *machine);
282 int perf_event__process_aux(struct perf_tool *tool,
283 union perf_event *event,
284 struct perf_sample *sample,
285 struct machine *machine);
286 int perf_event__process_itrace_start(struct perf_tool *tool,
287 union perf_event *event,
288 struct perf_sample *sample,
289 struct machine *machine);
290 int perf_event__process_aux_output_hw_id(struct perf_tool *tool,
291 union perf_event *event,
292 struct perf_sample *sample,
293 struct machine *machine);
294 int perf_event__process_switch(struct perf_tool *tool,
295 union perf_event *event,
296 struct perf_sample *sample,
297 struct machine *machine);
298 int perf_event__process_namespaces(struct perf_tool *tool,
299 union perf_event *event,
300 struct perf_sample *sample,
301 struct machine *machine);
302 int perf_event__process_cgroup(struct perf_tool *tool,
303 union perf_event *event,
304 struct perf_sample *sample,
305 struct machine *machine);
306 int perf_event__process_mmap(struct perf_tool *tool,
307 union perf_event *event,
308 struct perf_sample *sample,
309 struct machine *machine);
310 int perf_event__process_mmap2(struct perf_tool *tool,
311 union perf_event *event,
312 struct perf_sample *sample,
313 struct machine *machine);
314 int perf_event__process_fork(struct perf_tool *tool,
315 union perf_event *event,
316 struct perf_sample *sample,
317 struct machine *machine);
318 int perf_event__process_exit(struct perf_tool *tool,
319 union perf_event *event,
320 struct perf_sample *sample,
321 struct machine *machine);
322 int perf_event__process_ksymbol(struct perf_tool *tool,
323 union perf_event *event,
324 struct perf_sample *sample,
325 struct machine *machine);
326 int perf_event__process_bpf(struct perf_tool *tool,
327 union perf_event *event,
328 struct perf_sample *sample,
329 struct machine *machine);
330 int perf_event__process_text_poke(struct perf_tool *tool,
331 union perf_event *event,
332 struct perf_sample *sample,
333 struct machine *machine);
334 int perf_event__process(struct perf_tool *tool,
335 union perf_event *event,
336 struct perf_sample *sample,
337 struct machine *machine);
338
339 bool is_bts_event(struct perf_event_attr *attr);
340 bool sample_addr_correlates_sym(struct perf_event_attr *attr);
341
342 const char *perf_event__name(unsigned int id);
343
344 size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp);
345 size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp);
346 size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp);
347 size_t perf_event__fprintf_task(union perf_event *event, FILE *fp);
348 size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp);
349 size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp);
350 size_t perf_event__fprintf_aux_output_hw_id(union perf_event *event, FILE *fp);
351 size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp);
352 size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp);
353 size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp);
354 size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp);
355 size_t perf_event__fprintf_cgroup(union perf_event *event, FILE *fp);
356 size_t perf_event__fprintf_ksymbol(union perf_event *event, FILE *fp);
357 size_t perf_event__fprintf_bpf(union perf_event *event, FILE *fp);
358 size_t perf_event__fprintf_text_poke(union perf_event *event, struct machine *machine,FILE *fp);
359 size_t perf_event__fprintf(union perf_event *event, struct machine *machine, FILE *fp);
360
361 int kallsyms__get_function_start(const char *kallsyms_filename,
362 const char *symbol_name, u64 *addr);
363 int kallsyms__get_symbol_start(const char *kallsyms_filename,
364 const char *symbol_name, u64 *addr);
365
366 void event_attr_init(struct perf_event_attr *attr);
367
368 int perf_event_paranoid(void);
369 bool perf_event_paranoid_check(int max_level);
370
371 extern int sysctl_perf_event_max_stack;
372 extern int sysctl_perf_event_max_contexts_per_stack;
373 extern unsigned int proc_map_timeout;
374
375 #define PAGE_SIZE_NAME_LEN 32
376 char *get_page_size_name(u64 size, char *str);
377
378 void arch_perf_parse_sample_weight(struct perf_sample *data, const __u64 *array, u64 type);
379 void arch_perf_synthesize_sample_weight(const struct perf_sample *data, __u64 *array, u64 type);
380 const char *arch_perf_header_entry(const char *se_header);
381 int arch_support_sort_key(const char *sort_key);
382
perf_event_header__cpumode_is_guest(u8 cpumode)383 static inline bool perf_event_header__cpumode_is_guest(u8 cpumode)
384 {
385 return cpumode == PERF_RECORD_MISC_GUEST_KERNEL ||
386 cpumode == PERF_RECORD_MISC_GUEST_USER;
387 }
388
perf_event_header__misc_is_guest(u16 misc)389 static inline bool perf_event_header__misc_is_guest(u16 misc)
390 {
391 return perf_event_header__cpumode_is_guest(misc & PERF_RECORD_MISC_CPUMODE_MASK);
392 }
393
perf_event_header__is_guest(const struct perf_event_header * header)394 static inline bool perf_event_header__is_guest(const struct perf_event_header *header)
395 {
396 return perf_event_header__misc_is_guest(header->misc);
397 }
398
perf_event__is_guest(const union perf_event * event)399 static inline bool perf_event__is_guest(const union perf_event *event)
400 {
401 return perf_event_header__is_guest(&event->header);
402 }
403
404 #endif /* __PERF_RECORD_H */
405