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-rw-r--r--tools/perf/util/data_map.c252
1 files changed, 0 insertions, 252 deletions
diff --git a/tools/perf/util/data_map.c b/tools/perf/util/data_map.c
deleted file mode 100644
index b557b836de3d..000000000000
--- a/tools/perf/util/data_map.c
+++ /dev/null
@@ -1,252 +0,0 @@
1#include "symbol.h"
2#include "util.h"
3#include "debug.h"
4#include "thread.h"
5#include "session.h"
6
7static int process_event_stub(event_t *event __used,
8 struct perf_session *session __used)
9{
10 dump_printf(": unhandled!\n");
11 return 0;
12}
13
14static void perf_event_ops__fill_defaults(struct perf_event_ops *handler)
15{
16 if (!handler->process_sample_event)
17 handler->process_sample_event = process_event_stub;
18 if (!handler->process_mmap_event)
19 handler->process_mmap_event = process_event_stub;
20 if (!handler->process_comm_event)
21 handler->process_comm_event = process_event_stub;
22 if (!handler->process_fork_event)
23 handler->process_fork_event = process_event_stub;
24 if (!handler->process_exit_event)
25 handler->process_exit_event = process_event_stub;
26 if (!handler->process_lost_event)
27 handler->process_lost_event = process_event_stub;
28 if (!handler->process_read_event)
29 handler->process_read_event = process_event_stub;
30 if (!handler->process_throttle_event)
31 handler->process_throttle_event = process_event_stub;
32 if (!handler->process_unthrottle_event)
33 handler->process_unthrottle_event = process_event_stub;
34}
35
36static const char *event__name[] = {
37 [0] = "TOTAL",
38 [PERF_RECORD_MMAP] = "MMAP",
39 [PERF_RECORD_LOST] = "LOST",
40 [PERF_RECORD_COMM] = "COMM",
41 [PERF_RECORD_EXIT] = "EXIT",
42 [PERF_RECORD_THROTTLE] = "THROTTLE",
43 [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE",
44 [PERF_RECORD_FORK] = "FORK",
45 [PERF_RECORD_READ] = "READ",
46 [PERF_RECORD_SAMPLE] = "SAMPLE",
47};
48
49unsigned long event__total[PERF_RECORD_MAX];
50
51void event__print_totals(void)
52{
53 int i;
54 for (i = 0; i < PERF_RECORD_MAX; ++i)
55 pr_info("%10s events: %10ld\n",
56 event__name[i], event__total[i]);
57}
58
59static int process_event(event_t *event, struct perf_session *session,
60 struct perf_event_ops *ops,
61 unsigned long offset, unsigned long head)
62{
63 trace_event(event);
64
65 if (event->header.type < PERF_RECORD_MAX) {
66 dump_printf("%p [%p]: PERF_RECORD_%s",
67 (void *)(offset + head),
68 (void *)(long)(event->header.size),
69 event__name[event->header.type]);
70 ++event__total[0];
71 ++event__total[event->header.type];
72 }
73
74 switch (event->header.type) {
75 case PERF_RECORD_SAMPLE:
76 return ops->process_sample_event(event, session);
77 case PERF_RECORD_MMAP:
78 return ops->process_mmap_event(event, session);
79 case PERF_RECORD_COMM:
80 return ops->process_comm_event(event, session);
81 case PERF_RECORD_FORK:
82 return ops->process_fork_event(event, session);
83 case PERF_RECORD_EXIT:
84 return ops->process_exit_event(event, session);
85 case PERF_RECORD_LOST:
86 return ops->process_lost_event(event, session);
87 case PERF_RECORD_READ:
88 return ops->process_read_event(event, session);
89 case PERF_RECORD_THROTTLE:
90 return ops->process_throttle_event(event, session);
91 case PERF_RECORD_UNTHROTTLE:
92 return ops->process_unthrottle_event(event, session);
93 default:
94 ops->total_unknown++;
95 return -1;
96 }
97}
98
99int perf_header__read_build_ids(int input, u64 offset, u64 size)
100{
101 struct build_id_event bev;
102 char filename[PATH_MAX];
103 u64 limit = offset + size;
104 int err = -1;
105
106 while (offset < limit) {
107 struct dso *dso;
108 ssize_t len;
109
110 if (read(input, &bev, sizeof(bev)) != sizeof(bev))
111 goto out;
112
113 len = bev.header.size - sizeof(bev);
114 if (read(input, filename, len) != len)
115 goto out;
116
117 dso = dsos__findnew(filename);
118 if (dso != NULL)
119 dso__set_build_id(dso, &bev.build_id);
120
121 offset += bev.header.size;
122 }
123 err = 0;
124out:
125 return err;
126}
127
128static struct thread *perf_session__register_idle_thread(struct perf_session *self)
129{
130 struct thread *thread = perf_session__findnew(self, 0);
131
132 if (!thread || thread__set_comm(thread, "swapper")) {
133 pr_err("problem inserting idle task.\n");
134 thread = NULL;
135 }
136
137 return thread;
138}
139
140int perf_session__process_events(struct perf_session *self,
141 struct perf_event_ops *ops)
142{
143 int err;
144 unsigned long head, shift;
145 unsigned long offset = 0;
146 size_t page_size;
147 event_t *event;
148 uint32_t size;
149 char *buf;
150
151 if (perf_session__register_idle_thread(self) == NULL)
152 return -ENOMEM;
153
154 perf_event_ops__fill_defaults(ops);
155
156 page_size = getpagesize();
157
158 head = self->header.data_offset;
159 self->sample_type = perf_header__sample_type(&self->header);
160
161 err = -EINVAL;
162 if (ops->sample_type_check && ops->sample_type_check(self) < 0)
163 goto out_err;
164
165 if (!ops->full_paths) {
166 char bf[PATH_MAX];
167
168 if (getcwd(bf, sizeof(bf)) == NULL) {
169 err = -errno;
170out_getcwd_err:
171 pr_err("failed to get the current directory\n");
172 goto out_err;
173 }
174 self->cwd = strdup(bf);
175 if (self->cwd == NULL) {
176 err = -ENOMEM;
177 goto out_getcwd_err;
178 }
179 self->cwdlen = strlen(self->cwd);
180 }
181
182 shift = page_size * (head / page_size);
183 offset += shift;
184 head -= shift;
185
186remap:
187 buf = mmap(NULL, page_size * self->mmap_window, PROT_READ,
188 MAP_SHARED, self->fd, offset);
189 if (buf == MAP_FAILED) {
190 pr_err("failed to mmap file\n");
191 err = -errno;
192 goto out_err;
193 }
194
195more:
196 event = (event_t *)(buf + head);
197
198 size = event->header.size;
199 if (!size)
200 size = 8;
201
202 if (head + event->header.size >= page_size * self->mmap_window) {
203 int munmap_ret;
204
205 shift = page_size * (head / page_size);
206
207 munmap_ret = munmap(buf, page_size * self->mmap_window);
208 assert(munmap_ret == 0);
209
210 offset += shift;
211 head -= shift;
212 goto remap;
213 }
214
215 size = event->header.size;
216
217 dump_printf("\n%p [%p]: event: %d\n",
218 (void *)(offset + head),
219 (void *)(long)event->header.size,
220 event->header.type);
221
222 if (!size || process_event(event, self, ops, offset, head) < 0) {
223
224 dump_printf("%p [%p]: skipping unknown header type: %d\n",
225 (void *)(offset + head),
226 (void *)(long)(event->header.size),
227 event->header.type);
228
229 /*
230 * assume we lost track of the stream, check alignment, and
231 * increment a single u64 in the hope to catch on again 'soon'.
232 */
233
234 if (unlikely(head & 7))
235 head &= ~7ULL;
236
237 size = 8;
238 }
239
240 head += size;
241
242 if (offset + head >= self->header.data_offset + self->header.data_size)
243 goto done;
244
245 if (offset + head < self->size)
246 goto more;
247
248done:
249 err = 0;
250out_err:
251 return err;
252}
generated by cgit v1.2.2 (git 2.25.0) at 2026-03-04 12:07:17 -0500