1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2018, Matthew Macy
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 * $FreeBSD$
28 *
29 */
30
31 #include <sys/types.h>
32 #include <sys/errno.h>
33 #include <sys/sysctl.h>
34 #include <stddef.h>
35 #include <stdlib.h>
36 #include <err.h>
37 #include <limits.h>
38 #include <string.h>
39 #include <pmc.h>
40 #include <pmclog.h>
41 #include <assert.h>
42 #include <string>
43 #include <sysexits.h>
44 #include <pmcformat.h>
45
46 using std::string;
47
48 static const char *typenames[] = {
49 "",
50 "{\"type\": \"closelog\"}\n",
51 "{\"type\": \"dropnotify\"}\n",
52 "{\"type\": \"initialize\"",
53 "",
54 "{\"type\": \"pmcallocate\"",
55 "{\"type\": \"pmcattach\"",
56 "{\"type\": \"pmcdetach\"",
57 "{\"type\": \"proccsw\"",
58 "{\"type\": \"procexec\"",
59 "{\"type\": \"procexit\"",
60 "{\"type\": \"procfork\"",
61 "{\"type\": \"sysexit\"",
62 "{\"type\": \"userdata\"",
63 "{\"type\": \"map_in\"",
64 "{\"type\": \"map_out\"",
65 "{\"type\": \"callchain\"",
66 "{\"type\": \"pmcallocatedyn\"",
67 "{\"type\": \"thr_create\"",
68 "{\"type\": \"thr_exit\"",
69 "{\"type\": \"proc_create\"",
70 };
71
72 static string
startentry(struct pmclog_ev * ev)73 startentry(struct pmclog_ev *ev)
74 {
75 char eventbuf[128];
76
77 snprintf(eventbuf, sizeof(eventbuf), "%s, \"tsc\": \"%jd\"",
78 typenames[ev->pl_type], (uintmax_t)ev->pl_ts.tv_sec);
79 return (string(eventbuf));
80 }
81
82 static string
initialize_to_json(struct pmclog_ev * ev)83 initialize_to_json(struct pmclog_ev *ev)
84 {
85 char eventbuf[256];
86 string startent;
87
88 startent = startentry(ev);
89 snprintf(eventbuf, sizeof(eventbuf),
90 "%s, \"version\": \"0x%08x\", \"arch\": \"0x%08x\", \"cpuid\": \"%s\", "
91 "\"tsc_freq\": \"%jd\", \"sec\": \"%jd\", \"nsec\": \"%jd\"}\n",
92 startent.c_str(), ev->pl_u.pl_i.pl_version, ev->pl_u.pl_i.pl_arch,
93 ev->pl_u.pl_i.pl_cpuid, (uintmax_t)ev->pl_u.pl_i.pl_tsc_freq,
94 (uintmax_t)ev->pl_u.pl_i.pl_ts.tv_sec, (uintmax_t)ev->pl_u.pl_i.pl_ts.tv_nsec);
95 return string(eventbuf);
96 }
97
98 static string
pmcallocate_to_json(struct pmclog_ev * ev)99 pmcallocate_to_json(struct pmclog_ev *ev)
100 {
101 char eventbuf[256];
102 string startent;
103
104 startent = startentry(ev);
105 snprintf(eventbuf, sizeof(eventbuf),
106 "%s, \"pmcid\": \"0x%08x\", \"event\": \"0x%08x\", \"flags\": \"0x%08x\", "
107 "\"rate\": \"%jd\"}\n",
108 startent.c_str(), ev->pl_u.pl_a.pl_pmcid, ev->pl_u.pl_a.pl_event,
109 ev->pl_u.pl_a.pl_flags, (intmax_t)ev->pl_u.pl_a.pl_rate);
110 return string(eventbuf);
111 }
112
113 static string
pmcattach_to_json(struct pmclog_ev * ev)114 pmcattach_to_json(struct pmclog_ev *ev)
115 {
116 char eventbuf[2048];
117 string startent;
118
119 startent = startentry(ev);
120 snprintf(eventbuf, sizeof(eventbuf),
121 "%s, \"pmcid\": \"0x%08x\", \"pid\": \"%d\", \"pathname\": \"%s\"}\n",
122 startent.c_str(), ev->pl_u.pl_t.pl_pmcid, ev->pl_u.pl_t.pl_pid,
123 ev->pl_u.pl_t.pl_pathname);
124 return string(eventbuf);
125 }
126
127 static string
pmcdetach_to_json(struct pmclog_ev * ev)128 pmcdetach_to_json(struct pmclog_ev *ev)
129 {
130 char eventbuf[128];
131 string startent;
132
133 startent = startentry(ev);
134 snprintf(eventbuf, sizeof(eventbuf),
135 "%s, \"pmcid\": \"0x%08x\", \"pid\": \"%d\"}\n",
136 startent.c_str(), ev->pl_u.pl_d.pl_pmcid, ev->pl_u.pl_d.pl_pid);
137 return string(eventbuf);
138 }
139
140
141 static string
proccsw_to_json(struct pmclog_ev * ev)142 proccsw_to_json(struct pmclog_ev *ev)
143 {
144 char eventbuf[128];
145 string startent;
146
147 startent = startentry(ev);
148 snprintf(eventbuf, sizeof(eventbuf), "%s, \"pmcid\": \"0x%08x\", \"pid\": \"%d\" "
149 "\"tid\": \"%d\", \"value\": \"0x%016jx\"}\n",
150 startent.c_str(), ev->pl_u.pl_c.pl_pmcid, ev->pl_u.pl_c.pl_pid,
151 ev->pl_u.pl_c.pl_tid, (uintmax_t)ev->pl_u.pl_c.pl_value);
152 return string(eventbuf);
153 }
154
155 static string
procexec_to_json(struct pmclog_ev * ev)156 procexec_to_json(struct pmclog_ev *ev)
157 {
158 char eventbuf[2048];
159 string startent;
160
161 startent = startentry(ev);
162 snprintf(eventbuf, sizeof(eventbuf),
163 "%s, \"pmcid\": \"0x%08x\", \"pid\": \"%d\", "
164 "\"start\": \"0x%016jx\", \"pathname\": \"%s\"}\n",
165 startent.c_str(), ev->pl_u.pl_x.pl_pmcid, ev->pl_u.pl_x.pl_pid,
166 (uintmax_t)ev->pl_u.pl_x.pl_entryaddr, ev->pl_u.pl_x.pl_pathname);
167 return string(eventbuf);
168 }
169
170 static string
procexit_to_json(struct pmclog_ev * ev)171 procexit_to_json(struct pmclog_ev *ev)
172 {
173 char eventbuf[128];
174 string startent;
175
176 startent = startentry(ev);
177 snprintf(eventbuf, sizeof(eventbuf),
178 "%s, \"pmcid\": \"0x%08x\", \"pid\": \"%d\", "
179 "\"value\": \"0x%016jx\"}\n",
180 startent.c_str(), ev->pl_u.pl_e.pl_pmcid, ev->pl_u.pl_e.pl_pid,
181 (uintmax_t)ev->pl_u.pl_e.pl_value);
182 return string(eventbuf);
183 }
184
185 static string
procfork_to_json(struct pmclog_ev * ev)186 procfork_to_json(struct pmclog_ev *ev)
187 {
188 char eventbuf[128];
189 string startent;
190
191 startent = startentry(ev);
192 snprintf(eventbuf, sizeof(eventbuf),
193 "%s, \"oldpid\": \"%d\", \"newpid\": \"%d\"}\n",
194 startent.c_str(), ev->pl_u.pl_f.pl_oldpid, ev->pl_u.pl_f.pl_newpid);
195 return string(eventbuf);
196 }
197
198 static string
sysexit_to_json(struct pmclog_ev * ev)199 sysexit_to_json(struct pmclog_ev *ev)
200 {
201 char eventbuf[128];
202 string startent;
203
204 startent = startentry(ev);
205 snprintf(eventbuf, sizeof(eventbuf), "%s, \"pid\": \"%d\"}\n",
206 startent.c_str(), ev->pl_u.pl_se.pl_pid);
207 return string(eventbuf);
208 }
209
210 static string
userdata_to_json(struct pmclog_ev * ev)211 userdata_to_json(struct pmclog_ev *ev)
212 {
213 char eventbuf[128];
214 string startent;
215
216 startent = startentry(ev);
217 snprintf(eventbuf, sizeof(eventbuf), "%s, \"userdata\": \"0x%08x\"}\n",
218 startent.c_str(), ev->pl_u.pl_u.pl_userdata);
219 return string(eventbuf);
220 }
221
222 static string
map_in_to_json(struct pmclog_ev * ev)223 map_in_to_json(struct pmclog_ev *ev)
224 {
225 char eventbuf[2048];
226 string startent;
227
228 startent = startentry(ev);
229 snprintf(eventbuf, sizeof(eventbuf), "%s, \"pid\": \"%d\", "
230 "\"start\": \"0x%016jx\", \"pathname\": \"%s\"}\n",
231 startent.c_str(), ev->pl_u.pl_mi.pl_pid,
232 (uintmax_t)ev->pl_u.pl_mi.pl_start, ev->pl_u.pl_mi.pl_pathname);
233 return string(eventbuf);
234 }
235
236 static string
map_out_to_json(struct pmclog_ev * ev)237 map_out_to_json(struct pmclog_ev *ev)
238 {
239 char eventbuf[256];
240 string startent;
241
242 startent = startentry(ev);
243 snprintf(eventbuf, sizeof(eventbuf), "%s, \"pid\": \"%d\", "
244 "\"start\": \"0x%016jx\", \"end\": \"0x%016jx\"}\n",
245 startent.c_str(), ev->pl_u.pl_mi.pl_pid,
246 (uintmax_t)ev->pl_u.pl_mi.pl_start,
247 (uintmax_t)ev->pl_u.pl_mo.pl_end);
248 return string(eventbuf);
249 }
250
251 static string
callchain_to_json(struct pmclog_ev * ev)252 callchain_to_json(struct pmclog_ev *ev)
253 {
254 char eventbuf[1024];
255 string result;
256 uint32_t i;
257 string startent;
258
259 startent = startentry(ev);
260 snprintf(eventbuf, sizeof(eventbuf),
261 "%s, \"pmcid\": \"0x%08x\", \"pid\": \"%d\", \"tid\": \"%d\", "
262 "\"cpuflags\": \"0x%08x\", \"cpuflags2\": \"0x%08x\", \"pc\": [ ",
263 startent.c_str(), ev->pl_u.pl_cc.pl_pmcid, ev->pl_u.pl_cc.pl_pid,
264 ev->pl_u.pl_cc.pl_tid, ev->pl_u.pl_cc.pl_cpuflags, ev->pl_u.pl_cc.pl_cpuflags2);
265 result = string(eventbuf);
266 for (i = 0; i < ev->pl_u.pl_cc.pl_npc - 1; i++) {
267 snprintf(eventbuf, sizeof(eventbuf), "\"0x%016jx\", ", (uintmax_t)ev->pl_u.pl_cc.pl_pc[i]);
268 result += string(eventbuf);
269 }
270 snprintf(eventbuf, sizeof(eventbuf), "\"0x%016jx\"]}\n", (uintmax_t)ev->pl_u.pl_cc.pl_pc[i]);
271 result += string(eventbuf);
272 return (result);
273 }
274
275 static string
pmcallocatedyn_to_json(struct pmclog_ev * ev)276 pmcallocatedyn_to_json(struct pmclog_ev *ev)
277 {
278 char eventbuf[2048];
279 string startent;
280
281 startent = startentry(ev);
282 snprintf(eventbuf, sizeof(eventbuf),
283 "%s, \"pmcid\": \"0x%08x\", \"event\": \"%d\", \"flags\": \"0x%08x\", \"evname\": \"%s\"}\n",
284 startent.c_str(), ev->pl_u.pl_ad.pl_pmcid, ev->pl_u.pl_ad.pl_event,
285 ev->pl_u.pl_ad.pl_flags, ev->pl_u.pl_ad.pl_evname);
286 return string(eventbuf);
287 }
288
289 static string
proccreate_to_json(struct pmclog_ev * ev)290 proccreate_to_json(struct pmclog_ev *ev)
291 {
292 char eventbuf[2048];
293 string startent;
294
295 startent = startentry(ev);
296 snprintf(eventbuf, sizeof(eventbuf),
297 "%s, \"pid\": \"%d\", \"flags\": \"0x%08x\", \"pcomm\": \"%s\"}\n",
298 startent.c_str(), ev->pl_u.pl_pc.pl_pid,
299 ev->pl_u.pl_pc.pl_flags, ev->pl_u.pl_pc.pl_pcomm);
300 return string(eventbuf);
301 }
302
303 static string
threadcreate_to_json(struct pmclog_ev * ev)304 threadcreate_to_json(struct pmclog_ev *ev)
305 {
306 char eventbuf[2048];
307 string startent;
308
309 startent = startentry(ev);
310 snprintf(eventbuf, sizeof(eventbuf),
311 "%s, \"tid\": \"%d\", \"pid\": \"%d\", \"flags\": \"0x%08x\", \"tdname\": \"%s\"}\n",
312 startent.c_str(), ev->pl_u.pl_tc.pl_tid, ev->pl_u.pl_tc.pl_pid,
313 ev->pl_u.pl_tc.pl_flags, ev->pl_u.pl_tc.pl_tdname);
314 return string(eventbuf);
315 }
316
317 static string
threadexit_to_json(struct pmclog_ev * ev)318 threadexit_to_json(struct pmclog_ev *ev)
319 {
320 char eventbuf[256];
321 string startent;
322
323 startent = startentry(ev);
324 snprintf(eventbuf, sizeof(eventbuf), "%s, \"tid\": \"%d\"}\n",
325 startent.c_str(), ev->pl_u.pl_te.pl_tid);
326 return string(eventbuf);
327 }
328
329 static string
stub_to_json(struct pmclog_ev * ev)330 stub_to_json(struct pmclog_ev *ev)
331 {
332 string startent;
333
334 startent = startentry(ev);
335 startent += string("}\n");
336 return startent;
337 }
338
339 typedef string (*jconv) (struct pmclog_ev*);
340
341 static jconv jsonconvert[] = {
342 NULL,
343 stub_to_json,
344 stub_to_json,
345 initialize_to_json,
346 NULL,
347 pmcallocate_to_json,
348 pmcattach_to_json,
349 pmcdetach_to_json,
350 proccsw_to_json,
351 procexec_to_json,
352 procexit_to_json,
353 procfork_to_json,
354 sysexit_to_json,
355 userdata_to_json,
356 map_in_to_json,
357 map_out_to_json,
358 callchain_to_json,
359 pmcallocatedyn_to_json,
360 threadcreate_to_json,
361 threadexit_to_json,
362 proccreate_to_json,
363 };
364
365 string
event_to_json(struct pmclog_ev * ev)366 event_to_json(struct pmclog_ev *ev){
367
368 switch (ev->pl_type) {
369 case PMCLOG_TYPE_DROPNOTIFY:
370 case PMCLOG_TYPE_CLOSELOG:
371 case PMCLOG_TYPE_INITIALIZE:
372 case PMCLOG_TYPE_PMCALLOCATE:
373 case PMCLOG_TYPE_PMCATTACH:
374 case PMCLOG_TYPE_PMCDETACH:
375 case PMCLOG_TYPE_PROCCSW:
376 case PMCLOG_TYPE_PROCEXEC:
377 case PMCLOG_TYPE_PROCEXIT:
378 case PMCLOG_TYPE_PROCFORK:
379 case PMCLOG_TYPE_SYSEXIT:
380 case PMCLOG_TYPE_USERDATA:
381 case PMCLOG_TYPE_MAP_IN:
382 case PMCLOG_TYPE_MAP_OUT:
383 case PMCLOG_TYPE_CALLCHAIN:
384 case PMCLOG_TYPE_PMCALLOCATEDYN:
385 case PMCLOG_TYPE_THR_CREATE:
386 case PMCLOG_TYPE_THR_EXIT:
387 case PMCLOG_TYPE_PROC_CREATE:
388 return jsonconvert[ev->pl_type](ev);
389 default:
390 errx(EX_USAGE, "ERROR: unrecognized event type: %d\n", ev->pl_type);
391 }
392 }
393
394