1 // SPDX-License-Identifier: GPL-2.0
2 #include <inttypes.h>
3 #include <stdio.h>
4 #include <stdlib.h>
5 #include <stdbool.h>
6 #include <linux/kernel.h>
7 #include <linux/types.h>
8 #include <linux/perf_event.h>
9 #include "util/evsel_fprintf.h"
10 #include "util/pmu.h"
11 #include "util/pmus.h"
12 #include "trace-event.h"
13
14 struct bit_names {
15 int bit;
16 const char *name;
17 };
18
19 static void __p_bits(char *buf, size_t size, u64 value, struct bit_names *bits)
20 {
21 bool first_bit = true;
22 int i = 0;
23
24 do {
25 if (value & bits[i].bit) {
26 buf += scnprintf(buf, size, "%s%s", first_bit ? "" : "|", bits[i].name);
27 first_bit = false;
28 }
29 } while (bits[++i].name != NULL);
30 }
31
32 static void __p_sample_type(char *buf, size_t size, u64 value)
33 {
34 #define bit_name(n) { PERF_SAMPLE_##n, #n }
35 struct bit_names bits[] = {
36 bit_name(IP), bit_name(TID), bit_name(TIME), bit_name(ADDR),
37 bit_name(READ), bit_name(CALLCHAIN), bit_name(ID), bit_name(CPU),
38 bit_name(PERIOD), bit_name(STREAM_ID), bit_name(RAW),
39 bit_name(BRANCH_STACK), bit_name(REGS_USER), bit_name(STACK_USER),
40 bit_name(IDENTIFIER), bit_name(REGS_INTR), bit_name(DATA_SRC),
41 bit_name(WEIGHT), bit_name(PHYS_ADDR), bit_name(AUX),
42 bit_name(CGROUP), bit_name(DATA_PAGE_SIZE), bit_name(CODE_PAGE_SIZE),
43 bit_name(WEIGHT_STRUCT),
44 { .name = NULL, }
45 };
46 #undef bit_name
47 __p_bits(buf, size, value, bits);
48 }
49
50 static void __p_branch_sample_type(char *buf, size_t size, u64 value)
51 {
52 #define bit_name(n) { PERF_SAMPLE_BRANCH_##n, #n }
53 struct bit_names bits[] = {
54 bit_name(USER), bit_name(KERNEL), bit_name(HV), bit_name(ANY),
55 bit_name(ANY_CALL), bit_name(ANY_RETURN), bit_name(IND_CALL),
56 bit_name(ABORT_TX), bit_name(IN_TX), bit_name(NO_TX),
57 bit_name(COND), bit_name(CALL_STACK), bit_name(IND_JUMP),
58 bit_name(CALL), bit_name(NO_FLAGS), bit_name(NO_CYCLES),
59 bit_name(TYPE_SAVE), bit_name(HW_INDEX), bit_name(PRIV_SAVE),
60 bit_name(COUNTERS),
61 { .name = NULL, }
62 };
63 #undef bit_name
64 __p_bits(buf, size, value, bits);
65 }
66
67 static void __p_read_format(char *buf, size_t size, u64 value)
68 {
69 #define bit_name(n) { PERF_FORMAT_##n, #n }
70 struct bit_names bits[] = {
71 bit_name(TOTAL_TIME_ENABLED), bit_name(TOTAL_TIME_RUNNING),
72 bit_name(ID), bit_name(GROUP), bit_name(LOST),
73 { .name = NULL, }
74 };
75 #undef bit_name
76 __p_bits(buf, size, value, bits);
77 }
78
79 #define ENUM_ID_TO_STR_CASE(x) case x: return (#x);
80 static const char *stringify_perf_type_id(struct perf_pmu *pmu, u32 type)
81 {
82 if (pmu)
83 return pmu->name;
84
85 switch (type) {
86 ENUM_ID_TO_STR_CASE(PERF_TYPE_HARDWARE)
87 ENUM_ID_TO_STR_CASE(PERF_TYPE_SOFTWARE)
88 ENUM_ID_TO_STR_CASE(PERF_TYPE_TRACEPOINT)
89 ENUM_ID_TO_STR_CASE(PERF_TYPE_HW_CACHE)
90 ENUM_ID_TO_STR_CASE(PERF_TYPE_RAW)
91 ENUM_ID_TO_STR_CASE(PERF_TYPE_BREAKPOINT)
92 default:
93 return NULL;
94 }
95 }
96
97 static const char *stringify_perf_hw_id(u64 value)
98 {
99 switch (value) {
100 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CPU_CYCLES)
101 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_INSTRUCTIONS)
102 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_REFERENCES)
103 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_MISSES)
104 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_BRANCH_INSTRUCTIONS)
105 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_BRANCH_MISSES)
106 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_BUS_CYCLES)
107 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_STALLED_CYCLES_FRONTEND)
108 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_STALLED_CYCLES_BACKEND)
109 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_REF_CPU_CYCLES)
110 default:
111 return NULL;
112 }
113 }
114
115 static const char *stringify_perf_hw_cache_id(u64 value)
116 {
117 switch (value) {
118 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_L1D)
119 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_L1I)
120 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_LL)
121 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_DTLB)
122 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_ITLB)
123 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_BPU)
124 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_NODE)
125 default:
126 return NULL;
127 }
128 }
129
130 static const char *stringify_perf_hw_cache_op_id(u64 value)
131 {
132 switch (value) {
133 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_OP_READ)
134 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_OP_WRITE)
135 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_OP_PREFETCH)
136 default:
137 return NULL;
138 }
139 }
140
141 static const char *stringify_perf_hw_cache_op_result_id(u64 value)
142 {
143 switch (value) {
144 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_RESULT_ACCESS)
145 ENUM_ID_TO_STR_CASE(PERF_COUNT_HW_CACHE_RESULT_MISS)
146 default:
147 return NULL;
148 }
149 }
150
151 static const char *stringify_perf_sw_id(u64 value)
152 {
153 switch (value) {
154 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_CPU_CLOCK)
155 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_TASK_CLOCK)
156 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_PAGE_FAULTS)
157 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_CONTEXT_SWITCHES)
158 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_CPU_MIGRATIONS)
159 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_PAGE_FAULTS_MIN)
160 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_PAGE_FAULTS_MAJ)
161 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_ALIGNMENT_FAULTS)
162 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_EMULATION_FAULTS)
163 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_DUMMY)
164 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_BPF_OUTPUT)
165 ENUM_ID_TO_STR_CASE(PERF_COUNT_SW_CGROUP_SWITCHES)
166 default:
167 return NULL;
168 }
169 }
170 #undef ENUM_ID_TO_STR_CASE
171
172 #define PRINT_ID(_s, _f) \
173 do { \
174 const char *__s = _s; \
175 if (__s == NULL) \
176 snprintf(buf, size, _f, value); \
177 else \
178 snprintf(buf, size, _f" (%s)", value, __s); \
179 } while (0)
180 #define print_id_unsigned(_s) PRINT_ID(_s, "%"PRIu64)
181 #define print_id_hex(_s) PRINT_ID(_s, "%#"PRIx64)
182
183 static void __p_type_id(struct perf_pmu *pmu, char *buf, size_t size, u64 value)
184 {
185 print_id_unsigned(stringify_perf_type_id(pmu, value));
186 }
187
188 static void __p_config_hw_id(char *buf, size_t size, u64 value)
189 {
190 print_id_hex(stringify_perf_hw_id(value));
191 }
192
193 static void __p_config_sw_id(char *buf, size_t size, u64 value)
194 {
195 print_id_hex(stringify_perf_sw_id(value));
196 }
197
198 static void __p_config_hw_cache_id(char *buf, size_t size, u64 value)
199 {
200 const char *hw_cache_str = stringify_perf_hw_cache_id(value & 0xff);
201 const char *hw_cache_op_str =
202 stringify_perf_hw_cache_op_id((value & 0xff00) >> 8);
203 const char *hw_cache_op_result_str =
204 stringify_perf_hw_cache_op_result_id((value & 0xff0000) >> 16);
205
206 if (hw_cache_str == NULL || hw_cache_op_str == NULL ||
207 hw_cache_op_result_str == NULL) {
208 snprintf(buf, size, "%#"PRIx64, value);
209 } else {
210 snprintf(buf, size, "%#"PRIx64" (%s | %s | %s)", value,
211 hw_cache_op_result_str, hw_cache_op_str, hw_cache_str);
212 }
213 }
214
215 #ifdef HAVE_LIBTRACEEVENT
216 static void __p_config_tracepoint_id(char *buf, size_t size, u64 value)
217 {
218 char *str = tracepoint_id_to_name(value);
219
220 print_id_hex(str);
221 free(str);
222 }
223 #endif
224
225 static void __p_config_id(struct perf_pmu *pmu, char *buf, size_t size, u32 type, u64 value)
226 {
227 const char *name = perf_pmu__name_from_config(pmu, value);
228
229 if (name) {
230 print_id_hex(name);
231 return;
232 }
233 switch (type) {
234 case PERF_TYPE_HARDWARE:
235 return __p_config_hw_id(buf, size, value);
236 case PERF_TYPE_SOFTWARE:
237 return __p_config_sw_id(buf, size, value);
238 case PERF_TYPE_HW_CACHE:
239 return __p_config_hw_cache_id(buf, size, value);
240 case PERF_TYPE_TRACEPOINT:
241 #ifdef HAVE_LIBTRACEEVENT
242 return __p_config_tracepoint_id(buf, size, value);
243 #endif
244 case PERF_TYPE_RAW:
245 case PERF_TYPE_BREAKPOINT:
246 default:
247 snprintf(buf, size, "%#"PRIx64, value);
248 return;
249 }
250 }
251
252 #define BUF_SIZE 1024
253
254 #define p_hex(val) snprintf(buf, BUF_SIZE, "%#"PRIx64, (uint64_t)(val))
255 #define p_unsigned(val) snprintf(buf, BUF_SIZE, "%"PRIu64, (uint64_t)(val))
256 #define p_signed(val) snprintf(buf, BUF_SIZE, "%"PRId64, (int64_t)(val))
257 #define p_sample_type(val) __p_sample_type(buf, BUF_SIZE, val)
258 #define p_branch_sample_type(val) __p_branch_sample_type(buf, BUF_SIZE, val)
259 #define p_read_format(val) __p_read_format(buf, BUF_SIZE, val)
260 #define p_type_id(val) __p_type_id(pmu, buf, BUF_SIZE, val)
261 #define p_config_id(val) __p_config_id(pmu, buf, BUF_SIZE, attr->type, val)
262
263 #define PRINT_ATTRn(_n, _f, _p, _a) \
264 do { \
265 if (_a || attr->_f) { \
266 _p(attr->_f); \
267 ret += attr__fprintf(fp, _n, buf, priv);\
268 } \
269 } while (0)
270
271 #define PRINT_ATTRf(_f, _p) PRINT_ATTRn(#_f, _f, _p, false)
272
273 int perf_event_attr__fprintf(FILE *fp, struct perf_event_attr *attr,
274 attr__fprintf_f attr__fprintf, void *priv)
275 {
276 struct perf_pmu *pmu = perf_pmus__find_by_type(attr->type);
277 char buf[BUF_SIZE];
278 int ret = 0;
279
280 PRINT_ATTRn("type", type, p_type_id, true);
281 PRINT_ATTRf(size, p_unsigned);
282 PRINT_ATTRn("config", config, p_config_id, true);
283 PRINT_ATTRn("{ sample_period, sample_freq }", sample_period, p_unsigned, false);
284 PRINT_ATTRf(sample_type, p_sample_type);
285 PRINT_ATTRf(read_format, p_read_format);
286
287 PRINT_ATTRf(disabled, p_unsigned);
288 PRINT_ATTRf(inherit, p_unsigned);
289 PRINT_ATTRf(pinned, p_unsigned);
290 PRINT_ATTRf(exclusive, p_unsigned);
291 PRINT_ATTRf(exclude_user, p_unsigned);
292 PRINT_ATTRf(exclude_kernel, p_unsigned);
293 PRINT_ATTRf(exclude_hv, p_unsigned);
294 PRINT_ATTRf(exclude_idle, p_unsigned);
295 PRINT_ATTRf(mmap, p_unsigned);
296 PRINT_ATTRf(comm, p_unsigned);
297 PRINT_ATTRf(freq, p_unsigned);
298 PRINT_ATTRf(inherit_stat, p_unsigned);
299 PRINT_ATTRf(enable_on_exec, p_unsigned);
300 PRINT_ATTRf(task, p_unsigned);
301 PRINT_ATTRf(watermark, p_unsigned);
302 PRINT_ATTRf(precise_ip, p_unsigned);
303 PRINT_ATTRf(mmap_data, p_unsigned);
304 PRINT_ATTRf(sample_id_all, p_unsigned);
305 PRINT_ATTRf(exclude_host, p_unsigned);
306 PRINT_ATTRf(exclude_guest, p_unsigned);
307 PRINT_ATTRf(exclude_callchain_kernel, p_unsigned);
308 PRINT_ATTRf(exclude_callchain_user, p_unsigned);
309 PRINT_ATTRf(mmap2, p_unsigned);
310 PRINT_ATTRf(comm_exec, p_unsigned);
311 PRINT_ATTRf(use_clockid, p_unsigned);
312 PRINT_ATTRf(context_switch, p_unsigned);
313 PRINT_ATTRf(write_backward, p_unsigned);
314 PRINT_ATTRf(namespaces, p_unsigned);
315 PRINT_ATTRf(ksymbol, p_unsigned);
316 PRINT_ATTRf(bpf_event, p_unsigned);
317 PRINT_ATTRf(aux_output, p_unsigned);
318 PRINT_ATTRf(cgroup, p_unsigned);
319 PRINT_ATTRf(text_poke, p_unsigned);
320 PRINT_ATTRf(build_id, p_unsigned);
321 PRINT_ATTRf(inherit_thread, p_unsigned);
322 PRINT_ATTRf(remove_on_exec, p_unsigned);
323 PRINT_ATTRf(sigtrap, p_unsigned);
324
325 PRINT_ATTRn("{ wakeup_events, wakeup_watermark }", wakeup_events, p_unsigned, false);
326 PRINT_ATTRf(bp_type, p_unsigned);
327 PRINT_ATTRn("{ bp_addr, config1 }", bp_addr, p_hex, false);
328 PRINT_ATTRn("{ bp_len, config2 }", bp_len, p_hex, false);
329 PRINT_ATTRf(branch_sample_type, p_branch_sample_type);
330 PRINT_ATTRf(sample_regs_user, p_hex);
331 PRINT_ATTRf(sample_stack_user, p_unsigned);
332 PRINT_ATTRf(clockid, p_signed);
333 PRINT_ATTRf(sample_regs_intr, p_hex);
334 PRINT_ATTRf(aux_watermark, p_unsigned);
335 PRINT_ATTRf(sample_max_stack, p_unsigned);
336 PRINT_ATTRf(aux_sample_size, p_unsigned);
337 PRINT_ATTRf(sig_data, p_unsigned);
338
339 return ret;
340 }
341
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