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Linux kernel mirror (for testing)
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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
15struct dso;
16struct machine;
17struct perf_event_attr;
18struct 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
46struct ip_callchain {
47 u64 nr;
48 u64 ips[];
49};
50
51struct branch_stack;
52
53enum {
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 PERF_IP_FLAG_BRANCH_MISS = 1ULL << 15,
70};
71
72#define PERF_IP_FLAG_CHARS "bcrosyiABExghDt"
73
74#define PERF_BRANCH_MASK (\
75 PERF_IP_FLAG_BRANCH |\
76 PERF_IP_FLAG_CALL |\
77 PERF_IP_FLAG_RETURN |\
78 PERF_IP_FLAG_CONDITIONAL |\
79 PERF_IP_FLAG_SYSCALLRET |\
80 PERF_IP_FLAG_ASYNC |\
81 PERF_IP_FLAG_INTERRUPT |\
82 PERF_IP_FLAG_TX_ABORT |\
83 PERF_IP_FLAG_TRACE_BEGIN |\
84 PERF_IP_FLAG_TRACE_END |\
85 PERF_IP_FLAG_VMENTRY |\
86 PERF_IP_FLAG_VMEXIT)
87
88#define PERF_MEM_DATA_SRC_NONE \
89 (PERF_MEM_S(OP, NA) |\
90 PERF_MEM_S(LVL, NA) |\
91 PERF_MEM_S(SNOOP, NA) |\
92 PERF_MEM_S(LOCK, NA) |\
93 PERF_MEM_S(TLB, NA) |\
94 PERF_MEM_S(LVLNUM, NA))
95
96/* Attribute type for custom synthesized events */
97#define PERF_TYPE_SYNTH (INT_MAX + 1U)
98
99/* Attribute config for custom synthesized events */
100enum perf_synth_id {
101 PERF_SYNTH_INTEL_PTWRITE,
102 PERF_SYNTH_INTEL_MWAIT,
103 PERF_SYNTH_INTEL_PWRE,
104 PERF_SYNTH_INTEL_EXSTOP,
105 PERF_SYNTH_INTEL_PWRX,
106 PERF_SYNTH_INTEL_CBR,
107 PERF_SYNTH_INTEL_PSB,
108 PERF_SYNTH_INTEL_EVT,
109 PERF_SYNTH_INTEL_IFLAG_CHG,
110};
111
112/*
113 * Raw data formats for synthesized events. Note that 4 bytes of padding are
114 * present to match the 'size' member of PERF_SAMPLE_RAW data which is always
115 * 8-byte aligned. That means we must dereference raw_data with an offset of 4.
116 * Refer perf_sample__synth_ptr() and perf_synth__raw_data(). It also means the
117 * structure sizes are 4 bytes bigger than the raw_size, refer
118 * perf_synth__raw_size().
119 */
120
121struct perf_synth_intel_ptwrite {
122 u32 padding;
123 union {
124 struct {
125 u32 ip : 1,
126 reserved : 31;
127 };
128 u32 flags;
129 };
130 u64 payload;
131};
132
133struct perf_synth_intel_mwait {
134 u32 padding;
135 u32 reserved;
136 union {
137 struct {
138 u64 hints : 8,
139 reserved1 : 24,
140 extensions : 2,
141 reserved2 : 30;
142 };
143 u64 payload;
144 };
145};
146
147struct perf_synth_intel_pwre {
148 u32 padding;
149 u32 reserved;
150 union {
151 struct {
152 u64 reserved1 : 7,
153 hw : 1,
154 subcstate : 4,
155 cstate : 4,
156 reserved2 : 48;
157 };
158 u64 payload;
159 };
160};
161
162struct perf_synth_intel_exstop {
163 u32 padding;
164 union {
165 struct {
166 u32 ip : 1,
167 reserved : 31;
168 };
169 u32 flags;
170 };
171};
172
173struct perf_synth_intel_pwrx {
174 u32 padding;
175 u32 reserved;
176 union {
177 struct {
178 u64 deepest_cstate : 4,
179 last_cstate : 4,
180 wake_reason : 4,
181 reserved1 : 52;
182 };
183 u64 payload;
184 };
185};
186
187struct perf_synth_intel_cbr {
188 u32 padding;
189 union {
190 struct {
191 u32 cbr : 8,
192 reserved1 : 8,
193 max_nonturbo : 8,
194 reserved2 : 8;
195 };
196 u32 flags;
197 };
198 u32 freq;
199 u32 reserved3;
200};
201
202struct perf_synth_intel_psb {
203 u32 padding;
204 u32 reserved;
205 u64 offset;
206};
207
208struct perf_synth_intel_evd {
209 union {
210 struct {
211 u8 evd_type;
212 u8 reserved[7];
213 };
214 u64 et;
215 };
216 u64 payload;
217};
218
219/* Intel PT Event Trace */
220struct perf_synth_intel_evt {
221 u32 padding;
222 union {
223 struct {
224 u32 type : 5,
225 reserved : 2,
226 ip : 1,
227 vector : 8,
228 evd_cnt : 16;
229 };
230 u32 cfe;
231 };
232 struct perf_synth_intel_evd evd[0];
233};
234
235struct perf_synth_intel_iflag_chg {
236 u32 padding;
237 union {
238 struct {
239 u32 iflag : 1,
240 via_branch : 1;
241 };
242 u32 flags;
243 };
244 u64 branch_ip; /* If via_branch */
245};
246
247static inline void *perf_synth__raw_data(void *p)
248{
249 return p + 4;
250}
251
252#define perf_synth__raw_size(d) (sizeof(d) - 4)
253
254#define perf_sample__bad_synth_size(s, d) ((s)->raw_size < sizeof(d) - 4)
255
256enum {
257 PERF_STAT_ROUND_TYPE__INTERVAL = 0,
258 PERF_STAT_ROUND_TYPE__FINAL = 1,
259};
260
261void perf_event__print_totals(void);
262
263struct perf_cpu_map;
264struct perf_record_stat_config;
265struct perf_stat_config;
266struct perf_tool;
267
268void perf_event__read_stat_config(struct perf_stat_config *config,
269 struct perf_record_stat_config *event);
270
271int perf_event__process_comm(const struct perf_tool *tool,
272 union perf_event *event,
273 struct perf_sample *sample,
274 struct machine *machine);
275int perf_event__process_lost(const struct perf_tool *tool,
276 union perf_event *event,
277 struct perf_sample *sample,
278 struct machine *machine);
279int perf_event__process_lost_samples(const struct perf_tool *tool,
280 union perf_event *event,
281 struct perf_sample *sample,
282 struct machine *machine);
283int perf_event__process_aux(const struct perf_tool *tool,
284 union perf_event *event,
285 struct perf_sample *sample,
286 struct machine *machine);
287int perf_event__process_itrace_start(const struct perf_tool *tool,
288 union perf_event *event,
289 struct perf_sample *sample,
290 struct machine *machine);
291int perf_event__process_aux_output_hw_id(const struct perf_tool *tool,
292 union perf_event *event,
293 struct perf_sample *sample,
294 struct machine *machine);
295int perf_event__process_switch(const struct perf_tool *tool,
296 union perf_event *event,
297 struct perf_sample *sample,
298 struct machine *machine);
299int perf_event__process_namespaces(const struct perf_tool *tool,
300 union perf_event *event,
301 struct perf_sample *sample,
302 struct machine *machine);
303int perf_event__process_cgroup(const struct perf_tool *tool,
304 union perf_event *event,
305 struct perf_sample *sample,
306 struct machine *machine);
307int perf_event__process_mmap(const struct perf_tool *tool,
308 union perf_event *event,
309 struct perf_sample *sample,
310 struct machine *machine);
311int perf_event__process_mmap2(const struct perf_tool *tool,
312 union perf_event *event,
313 struct perf_sample *sample,
314 struct machine *machine);
315int perf_event__process_fork(const struct perf_tool *tool,
316 union perf_event *event,
317 struct perf_sample *sample,
318 struct machine *machine);
319int perf_event__process_exit(const struct perf_tool *tool,
320 union perf_event *event,
321 struct perf_sample *sample,
322 struct machine *machine);
323int perf_event__exit_del_thread(const struct perf_tool *tool,
324 union perf_event *event,
325 struct perf_sample *sample,
326 struct machine *machine);
327int perf_event__process_ksymbol(const struct perf_tool *tool,
328 union perf_event *event,
329 struct perf_sample *sample,
330 struct machine *machine);
331int perf_event__process_bpf(const struct perf_tool *tool,
332 union perf_event *event,
333 struct perf_sample *sample,
334 struct machine *machine);
335int perf_event__process_text_poke(const struct perf_tool *tool,
336 union perf_event *event,
337 struct perf_sample *sample,
338 struct machine *machine);
339int perf_event__process(const struct perf_tool *tool,
340 union perf_event *event,
341 struct perf_sample *sample,
342 struct machine *machine);
343
344bool is_bts_event(struct perf_event_attr *attr);
345bool sample_addr_correlates_sym(struct perf_event_attr *attr);
346
347const char *perf_event__name(unsigned int id);
348
349size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp);
350size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp);
351size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp);
352size_t perf_event__fprintf_task(union perf_event *event, FILE *fp);
353size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp);
354size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp);
355size_t perf_event__fprintf_aux_output_hw_id(union perf_event *event, FILE *fp);
356size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp);
357size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp);
358size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp);
359size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp);
360size_t perf_event__fprintf_cgroup(union perf_event *event, FILE *fp);
361size_t perf_event__fprintf_ksymbol(union perf_event *event, FILE *fp);
362size_t perf_event__fprintf_bpf(union perf_event *event, FILE *fp);
363size_t perf_event__fprintf_text_poke(union perf_event *event, struct machine *machine,FILE *fp);
364size_t perf_event__fprintf(union perf_event *event, struct machine *machine, FILE *fp);
365
366int kallsyms__get_function_start(const char *kallsyms_filename,
367 const char *symbol_name, u64 *addr);
368int kallsyms__get_symbol_start(const char *kallsyms_filename,
369 const char *symbol_name, u64 *addr);
370
371void event_attr_init(struct perf_event_attr *attr);
372
373int perf_event_paranoid(void);
374bool perf_event_paranoid_check(int max_level);
375
376extern int sysctl_perf_event_max_stack;
377extern int sysctl_perf_event_max_contexts_per_stack;
378extern unsigned int proc_map_timeout;
379
380#define PAGE_SIZE_NAME_LEN 32
381char *get_page_size_name(u64 size, char *str);
382
383void arch_perf_parse_sample_weight(struct perf_sample *data, const __u64 *array, u64 type);
384void arch_perf_synthesize_sample_weight(const struct perf_sample *data, __u64 *array, u64 type);
385const char *arch_perf_header_entry(const char *se_header);
386int arch_support_sort_key(const char *sort_key);
387
388static inline bool perf_event_header__cpumode_is_guest(u8 cpumode)
389{
390 return cpumode == PERF_RECORD_MISC_GUEST_KERNEL ||
391 cpumode == PERF_RECORD_MISC_GUEST_USER;
392}
393
394static inline bool perf_event_header__misc_is_guest(u16 misc)
395{
396 return perf_event_header__cpumode_is_guest(misc & PERF_RECORD_MISC_CPUMODE_MASK);
397}
398
399static inline bool perf_event_header__is_guest(const struct perf_event_header *header)
400{
401 return perf_event_header__misc_is_guest(header->misc);
402}
403
404static inline bool perf_event__is_guest(const union perf_event *event)
405{
406 return perf_event_header__is_guest(&event->header);
407}
408
409#endif /* __PERF_RECORD_H */