1
2#include <sys/sysmacros.h>
3#include <sys/types.h>
4#include <errno.h>
5#include <libgen.h>
6#include <stdio.h>
7#include <stdlib.h>
8#include <string.h>
9#include <fcntl.h>
10#include <unistd.h>
11#include <inttypes.h>
12#include <byteswap.h>
13#include <sys/stat.h>
14#include <sys/mman.h>
15#include <linux/stringify.h>
16
17#include "build-id.h"
18#include "event.h"
19#include "debug.h"
20#include "evlist.h"
21#include "namespaces.h"
22#include "symbol.h"
23#include <elf.h>
24
25#include "tsc.h"
26#include "session.h"
27#include "jit.h"
28#include "jitdump.h"
29#include "genelf.h"
30#include "thread.h"
31
32#include <linux/ctype.h>
33#include <linux/zalloc.h>
34
35struct jit_buf_desc {
36 struct perf_data *output;
37 struct perf_session *session;
38 struct machine *machine;
39 struct nsinfo *nsi;
40 union jr_entry *entry;
41 void *buf;
42 uint64_t sample_type;
43 size_t bufsize;
44 FILE *in;
45 bool needs_bswap;
46 bool use_arch_timestamp;
47 void *debug_data;
48 void *unwinding_data;
49 uint64_t unwinding_size;
50 uint64_t unwinding_mapped_size;
51 uint64_t eh_frame_hdr_size;
52 size_t nr_debug_entries;
53 uint32_t code_load_count;
54 u64 bytes_written;
55 struct rb_root code_root;
56 char dir[PATH_MAX];
57};
58
59struct debug_line_info {
60 unsigned long vma;
61 unsigned int lineno;
62
63 char const filename[];
64};
65
66struct jit_tool {
67 struct perf_tool tool;
68 struct perf_data output;
69 struct perf_data input;
70 u64 bytes_written;
71};
72
73#define hmax(a, b) ((a) > (b) ? (a) : (b))
74#define get_jit_tool(t) (container_of(tool, struct jit_tool, tool))
75
76static int
77jit_emit_elf(struct jit_buf_desc *jd,
78 char *filename,
79 const char *sym,
80 uint64_t code_addr,
81 const void *code,
82 int csize,
83 void *debug,
84 int nr_debug_entries,
85 void *unwinding,
86 uint32_t unwinding_header_size,
87 uint32_t unwinding_size)
88{
89 int ret, fd, saved_errno;
90 struct nscookie nsc;
91
92 if (verbose > 0)
93 fprintf(stderr, "write ELF image %s\n", filename);
94
95 nsinfo__mountns_enter(jd->nsi, &nsc);
96 fd = open(filename, O_CREAT|O_TRUNC|O_WRONLY, 0644);
97 saved_errno = errno;
98 nsinfo__mountns_exit(&nsc);
99 if (fd == -1) {
100 pr_warning("cannot create jit ELF %s: %s\n", filename, strerror(saved_errno));
101 return -1;
102 }
103
104 ret = jit_write_elf(fd, code_addr, sym, (const void *)code, csize, debug, nr_debug_entries,
105 unwinding, unwinding_header_size, unwinding_size);
106
107 close(fd);
108
109 if (ret) {
110 nsinfo__mountns_enter(jd->nsi, &nsc);
111 unlink(filename);
112 nsinfo__mountns_exit(&nsc);
113 }
114
115 return ret;
116}
117
118static void
119jit_close(struct jit_buf_desc *jd)
120{
121 if (!(jd && jd->in))
122 return;
123 funlockfile(jd->in);
124 fclose(jd->in);
125 jd->in = NULL;
126}
127
128static int
129jit_validate_events(struct perf_session *session)
130{
131 struct evsel *evsel;
132
133
134
135
136 evlist__for_each_entry(session->evlist, evsel) {
137 if (evsel->core.attr.use_clockid == 0 || evsel->core.attr.clockid != CLOCK_MONOTONIC)
138 return -1;
139 }
140 return 0;
141}
142
143static int
144jit_open(struct jit_buf_desc *jd, const char *name)
145{
146 struct jitheader header;
147 struct nscookie nsc;
148 struct jr_prefix *prefix;
149 ssize_t bs, bsz = 0;
150 void *n, *buf = NULL;
151 int ret, retval = -1;
152
153 nsinfo__mountns_enter(jd->nsi, &nsc);
154 jd->in = fopen(name, "r");
155 nsinfo__mountns_exit(&nsc);
156 if (!jd->in)
157 return -1;
158
159 bsz = hmax(sizeof(header), sizeof(*prefix));
160
161 buf = malloc(bsz);
162 if (!buf)
163 goto error;
164
165
166
167
168 flockfile(jd->in);
169
170 ret = fread(buf, sizeof(header), 1, jd->in);
171 if (ret != 1)
172 goto error;
173
174 memcpy(&header, buf, sizeof(header));
175
176 if (header.magic != JITHEADER_MAGIC) {
177 if (header.magic != JITHEADER_MAGIC_SW)
178 goto error;
179 jd->needs_bswap = true;
180 }
181
182 if (jd->needs_bswap) {
183 header.version = bswap_32(header.version);
184 header.total_size = bswap_32(header.total_size);
185 header.pid = bswap_32(header.pid);
186 header.elf_mach = bswap_32(header.elf_mach);
187 header.timestamp = bswap_64(header.timestamp);
188 header.flags = bswap_64(header.flags);
189 }
190
191 jd->use_arch_timestamp = header.flags & JITDUMP_FLAGS_ARCH_TIMESTAMP;
192
193 if (verbose > 2)
194 pr_debug("version=%u\nhdr.size=%u\nts=0x%llx\npid=%d\nelf_mach=%d\nuse_arch_timestamp=%d\n",
195 header.version,
196 header.total_size,
197 (unsigned long long)header.timestamp,
198 header.pid,
199 header.elf_mach,
200 jd->use_arch_timestamp);
201
202 if (header.version > JITHEADER_VERSION) {
203 pr_err("wrong jitdump version %u, expected " __stringify(JITHEADER_VERSION),
204 header.version);
205 goto error;
206 }
207
208 if (header.flags & JITDUMP_FLAGS_RESERVED) {
209 pr_err("jitdump file contains invalid or unsupported flags 0x%llx\n",
210 (unsigned long long)header.flags & JITDUMP_FLAGS_RESERVED);
211 goto error;
212 }
213
214 if (jd->use_arch_timestamp && !jd->session->time_conv.time_mult) {
215 pr_err("jitdump file uses arch timestamps but there is no timestamp conversion\n");
216 goto error;
217 }
218
219
220
221
222 if (!jd->use_arch_timestamp && jit_validate_events(jd->session)) {
223 pr_err("error, jitted code must be sampled with perf record -k 1\n");
224 goto error;
225 }
226
227 bs = header.total_size - sizeof(header);
228
229 if (bs > bsz) {
230 n = realloc(buf, bs);
231 if (!n)
232 goto error;
233 bsz = bs;
234 buf = n;
235
236 ret = fread(buf, bs - bsz, 1, jd->in);
237 if (ret != 1)
238 goto error;
239 }
240
241
242
243 strcpy(jd->dir, name);
244 dirname(jd->dir);
245
246 return 0;
247error:
248 funlockfile(jd->in);
249 fclose(jd->in);
250 return retval;
251}
252
253static union jr_entry *
254jit_get_next_entry(struct jit_buf_desc *jd)
255{
256 struct jr_prefix *prefix;
257 union jr_entry *jr;
258 void *addr;
259 size_t bs, size;
260 int id, ret;
261
262 if (!(jd && jd->in))
263 return NULL;
264
265 if (jd->buf == NULL) {
266 size_t sz = getpagesize();
267 if (sz < sizeof(*prefix))
268 sz = sizeof(*prefix);
269
270 jd->buf = malloc(sz);
271 if (jd->buf == NULL)
272 return NULL;
273
274 jd->bufsize = sz;
275 }
276
277 prefix = jd->buf;
278
279
280
281
282 ret = fread(prefix, sizeof(*prefix), 1, jd->in);
283 if (ret != 1)
284 return NULL;
285
286 if (jd->needs_bswap) {
287 prefix->id = bswap_32(prefix->id);
288 prefix->total_size = bswap_32(prefix->total_size);
289 prefix->timestamp = bswap_64(prefix->timestamp);
290 }
291 id = prefix->id;
292 size = prefix->total_size;
293
294 bs = (size_t)size;
295 if (bs < sizeof(*prefix))
296 return NULL;
297
298 if (id >= JIT_CODE_MAX) {
299 pr_warning("next_entry: unknown record type %d, skipping\n", id);
300 }
301 if (bs > jd->bufsize) {
302 void *n;
303 n = realloc(jd->buf, bs);
304 if (!n)
305 return NULL;
306 jd->buf = n;
307 jd->bufsize = bs;
308 }
309
310 addr = ((void *)jd->buf) + sizeof(*prefix);
311
312 ret = fread(addr, bs - sizeof(*prefix), 1, jd->in);
313 if (ret != 1)
314 return NULL;
315
316 jr = (union jr_entry *)jd->buf;
317
318 switch(id) {
319 case JIT_CODE_DEBUG_INFO:
320 if (jd->needs_bswap) {
321 uint64_t n;
322 jr->info.code_addr = bswap_64(jr->info.code_addr);
323 jr->info.nr_entry = bswap_64(jr->info.nr_entry);
324 for (n = 0 ; n < jr->info.nr_entry; n++) {
325 jr->info.entries[n].addr = bswap_64(jr->info.entries[n].addr);
326 jr->info.entries[n].lineno = bswap_32(jr->info.entries[n].lineno);
327 jr->info.entries[n].discrim = bswap_32(jr->info.entries[n].discrim);
328 }
329 }
330 break;
331 case JIT_CODE_UNWINDING_INFO:
332 if (jd->needs_bswap) {
333 jr->unwinding.unwinding_size = bswap_64(jr->unwinding.unwinding_size);
334 jr->unwinding.eh_frame_hdr_size = bswap_64(jr->unwinding.eh_frame_hdr_size);
335 jr->unwinding.mapped_size = bswap_64(jr->unwinding.mapped_size);
336 }
337 break;
338 case JIT_CODE_CLOSE:
339 break;
340 case JIT_CODE_LOAD:
341 if (jd->needs_bswap) {
342 jr->load.pid = bswap_32(jr->load.pid);
343 jr->load.tid = bswap_32(jr->load.tid);
344 jr->load.vma = bswap_64(jr->load.vma);
345 jr->load.code_addr = bswap_64(jr->load.code_addr);
346 jr->load.code_size = bswap_64(jr->load.code_size);
347 jr->load.code_index= bswap_64(jr->load.code_index);
348 }
349 jd->code_load_count++;
350 break;
351 case JIT_CODE_MOVE:
352 if (jd->needs_bswap) {
353 jr->move.pid = bswap_32(jr->move.pid);
354 jr->move.tid = bswap_32(jr->move.tid);
355 jr->move.vma = bswap_64(jr->move.vma);
356 jr->move.old_code_addr = bswap_64(jr->move.old_code_addr);
357 jr->move.new_code_addr = bswap_64(jr->move.new_code_addr);
358 jr->move.code_size = bswap_64(jr->move.code_size);
359 jr->move.code_index = bswap_64(jr->move.code_index);
360 }
361 break;
362 case JIT_CODE_MAX:
363 default:
364
365 break;
366 }
367 return jr;
368}
369
370static int
371jit_inject_event(struct jit_buf_desc *jd, union perf_event *event)
372{
373 ssize_t size;
374
375 size = perf_data__write(jd->output, event, event->header.size);
376 if (size < 0)
377 return -1;
378
379 jd->bytes_written += size;
380 return 0;
381}
382
383static pid_t jr_entry_pid(struct jit_buf_desc *jd, union jr_entry *jr)
384{
385 if (jd->nsi && jd->nsi->in_pidns)
386 return jd->nsi->tgid;
387 return jr->load.pid;
388}
389
390static pid_t jr_entry_tid(struct jit_buf_desc *jd, union jr_entry *jr)
391{
392 if (jd->nsi && jd->nsi->in_pidns)
393 return jd->nsi->pid;
394 return jr->load.tid;
395}
396
397static uint64_t convert_timestamp(struct jit_buf_desc *jd, uint64_t timestamp)
398{
399 struct perf_tsc_conversion tc;
400
401 if (!jd->use_arch_timestamp)
402 return timestamp;
403
404 tc.time_shift = jd->session->time_conv.time_shift;
405 tc.time_mult = jd->session->time_conv.time_mult;
406 tc.time_zero = jd->session->time_conv.time_zero;
407 tc.time_cycles = jd->session->time_conv.time_cycles;
408 tc.time_mask = jd->session->time_conv.time_mask;
409 tc.cap_user_time_zero = jd->session->time_conv.cap_user_time_zero;
410 tc.cap_user_time_short = jd->session->time_conv.cap_user_time_short;
411
412 if (!tc.cap_user_time_zero)
413 return 0;
414
415 return tsc_to_perf_time(timestamp, &tc);
416}
417
418static int jit_repipe_code_load(struct jit_buf_desc *jd, union jr_entry *jr)
419{
420 struct perf_sample sample;
421 union perf_event *event;
422 struct perf_tool *tool = jd->session->tool;
423 uint64_t code, addr;
424 uintptr_t uaddr;
425 char *filename;
426 struct stat st;
427 size_t size;
428 u16 idr_size;
429 const char *sym;
430 uint64_t count;
431 int ret, csize, usize;
432 pid_t nspid, pid, tid;
433 struct {
434 u32 pid, tid;
435 u64 time;
436 } *id;
437
438 nspid = jr->load.pid;
439 pid = jr_entry_pid(jd, jr);
440 tid = jr_entry_tid(jd, jr);
441 csize = jr->load.code_size;
442 usize = jd->unwinding_mapped_size;
443 addr = jr->load.code_addr;
444 sym = (void *)((unsigned long)jr + sizeof(jr->load));
445 code = (unsigned long)jr + jr->load.p.total_size - csize;
446 count = jr->load.code_index;
447 idr_size = jd->machine->id_hdr_size;
448
449 event = calloc(1, sizeof(*event) + idr_size);
450 if (!event)
451 return -1;
452
453 filename = event->mmap2.filename;
454 size = snprintf(filename, PATH_MAX, "%s/jitted-%d-%" PRIu64 ".so",
455 jd->dir,
456 nspid,
457 count);
458
459 size++;
460
461 size = PERF_ALIGN(size, sizeof(u64));
462 uaddr = (uintptr_t)code;
463 ret = jit_emit_elf(jd, filename, sym, addr, (const void *)uaddr, csize, jd->debug_data, jd->nr_debug_entries,
464 jd->unwinding_data, jd->eh_frame_hdr_size, jd->unwinding_size);
465
466 if (jd->debug_data && jd->nr_debug_entries) {
467 zfree(&jd->debug_data);
468 jd->nr_debug_entries = 0;
469 }
470
471 if (jd->unwinding_data && jd->eh_frame_hdr_size) {
472 zfree(&jd->unwinding_data);
473 jd->eh_frame_hdr_size = 0;
474 jd->unwinding_mapped_size = 0;
475 jd->unwinding_size = 0;
476 }
477
478 if (ret) {
479 free(event);
480 return -1;
481 }
482 if (nsinfo__stat(filename, &st, jd->nsi))
483 memset(&st, 0, sizeof(st));
484
485 event->mmap2.header.type = PERF_RECORD_MMAP2;
486 event->mmap2.header.misc = PERF_RECORD_MISC_USER;
487 event->mmap2.header.size = (sizeof(event->mmap2) -
488 (sizeof(event->mmap2.filename) - size) + idr_size);
489
490 event->mmap2.pgoff = GEN_ELF_TEXT_OFFSET;
491 event->mmap2.start = addr;
492 event->mmap2.len = usize ? ALIGN_8(csize) + usize : csize;
493 event->mmap2.pid = pid;
494 event->mmap2.tid = tid;
495 event->mmap2.ino = st.st_ino;
496 event->mmap2.maj = major(st.st_dev);
497 event->mmap2.min = minor(st.st_dev);
498 event->mmap2.prot = st.st_mode;
499 event->mmap2.flags = MAP_SHARED;
500 event->mmap2.ino_generation = 1;
501
502 id = (void *)((unsigned long)event + event->mmap.header.size - idr_size);
503 if (jd->sample_type & PERF_SAMPLE_TID) {
504 id->pid = pid;
505 id->tid = tid;
506 }
507 if (jd->sample_type & PERF_SAMPLE_TIME)
508 id->time = convert_timestamp(jd, jr->load.p.timestamp);
509
510
511
512
513
514 memset(&sample, 0, sizeof(sample));
515 sample.cpumode = PERF_RECORD_MISC_USER;
516 sample.pid = pid;
517 sample.tid = tid;
518 sample.time = id->time;
519 sample.ip = addr;
520
521 ret = perf_event__process_mmap2(tool, event, &sample, jd->machine);
522 if (ret)
523 return ret;
524
525 ret = jit_inject_event(jd, event);
526
527
528
529 if (!ret)
530 build_id__mark_dso_hit(tool, event, &sample, NULL, jd->machine);
531
532 return ret;
533}
534
535static int jit_repipe_code_move(struct jit_buf_desc *jd, union jr_entry *jr)
536{
537 struct perf_sample sample;
538 union perf_event *event;
539 struct perf_tool *tool = jd->session->tool;
540 char *filename;
541 size_t size;
542 struct stat st;
543 int usize;
544 u16 idr_size;
545 int ret;
546 pid_t nspid, pid, tid;
547 struct {
548 u32 pid, tid;
549 u64 time;
550 } *id;
551
552 nspid = jr->load.pid;
553 pid = jr_entry_pid(jd, jr);
554 tid = jr_entry_tid(jd, jr);
555 usize = jd->unwinding_mapped_size;
556 idr_size = jd->machine->id_hdr_size;
557
558
559
560
561 event = calloc(1, sizeof(*event) + 16);
562 if (!event)
563 return -1;
564
565 filename = event->mmap2.filename;
566 size = snprintf(filename, PATH_MAX, "%s/jitted-%d-%" PRIu64 ".so",
567 jd->dir,
568 nspid,
569 jr->move.code_index);
570
571 size++;
572
573 if (nsinfo__stat(filename, &st, jd->nsi))
574 memset(&st, 0, sizeof(st));
575
576 size = PERF_ALIGN(size, sizeof(u64));
577
578 event->mmap2.header.type = PERF_RECORD_MMAP2;
579 event->mmap2.header.misc = PERF_RECORD_MISC_USER;
580 event->mmap2.header.size = (sizeof(event->mmap2) -
581 (sizeof(event->mmap2.filename) - size) + idr_size);
582 event->mmap2.pgoff = GEN_ELF_TEXT_OFFSET;
583 event->mmap2.start = jr->move.new_code_addr;
584 event->mmap2.len = usize ? ALIGN_8(jr->move.code_size) + usize
585 : jr->move.code_size;
586 event->mmap2.pid = pid;
587 event->mmap2.tid = tid;
588 event->mmap2.ino = st.st_ino;
589 event->mmap2.maj = major(st.st_dev);
590 event->mmap2.min = minor(st.st_dev);
591 event->mmap2.prot = st.st_mode;
592 event->mmap2.flags = MAP_SHARED;
593 event->mmap2.ino_generation = 1;
594
595 id = (void *)((unsigned long)event + event->mmap.header.size - idr_size);
596 if (jd->sample_type & PERF_SAMPLE_TID) {
597 id->pid = pid;
598 id->tid = tid;
599 }
600 if (jd->sample_type & PERF_SAMPLE_TIME)
601 id->time = convert_timestamp(jd, jr->load.p.timestamp);
602
603
604
605
606
607 memset(&sample, 0, sizeof(sample));
608 sample.cpumode = PERF_RECORD_MISC_USER;
609 sample.pid = pid;
610 sample.tid = tid;
611 sample.time = id->time;
612 sample.ip = jr->move.new_code_addr;
613
614 ret = perf_event__process_mmap2(tool, event, &sample, jd->machine);
615 if (ret)
616 return ret;
617
618 ret = jit_inject_event(jd, event);
619 if (!ret)
620 build_id__mark_dso_hit(tool, event, &sample, NULL, jd->machine);
621
622 return ret;
623}
624
625static int jit_repipe_debug_info(struct jit_buf_desc *jd, union jr_entry *jr)
626{
627 void *data;
628 size_t sz;
629
630 if (!(jd && jr))
631 return -1;
632
633 sz = jr->prefix.total_size - sizeof(jr->info);
634 data = malloc(sz);
635 if (!data)
636 return -1;
637
638 memcpy(data, &jr->info.entries, sz);
639
640 jd->debug_data = data;
641
642
643
644
645
646 jd->nr_debug_entries = jr->info.nr_entry;
647
648 return 0;
649}
650
651static int
652jit_repipe_unwinding_info(struct jit_buf_desc *jd, union jr_entry *jr)
653{
654 void *unwinding_data;
655 uint32_t unwinding_data_size;
656
657 if (!(jd && jr))
658 return -1;
659
660 unwinding_data_size = jr->prefix.total_size - sizeof(jr->unwinding);
661 unwinding_data = malloc(unwinding_data_size);
662 if (!unwinding_data)
663 return -1;
664
665 memcpy(unwinding_data, &jr->unwinding.unwinding_data,
666 unwinding_data_size);
667
668 jd->eh_frame_hdr_size = jr->unwinding.eh_frame_hdr_size;
669 jd->unwinding_size = jr->unwinding.unwinding_size;
670 jd->unwinding_mapped_size = jr->unwinding.mapped_size;
671 jd->unwinding_data = unwinding_data;
672
673 return 0;
674}
675
676static int
677jit_process_dump(struct jit_buf_desc *jd)
678{
679 union jr_entry *jr;
680 int ret = 0;
681
682 while ((jr = jit_get_next_entry(jd))) {
683 switch(jr->prefix.id) {
684 case JIT_CODE_LOAD:
685 ret = jit_repipe_code_load(jd, jr);
686 break;
687 case JIT_CODE_MOVE:
688 ret = jit_repipe_code_move(jd, jr);
689 break;
690 case JIT_CODE_DEBUG_INFO:
691 ret = jit_repipe_debug_info(jd, jr);
692 break;
693 case JIT_CODE_UNWINDING_INFO:
694 ret = jit_repipe_unwinding_info(jd, jr);
695 break;
696 default:
697 ret = 0;
698 continue;
699 }
700 }
701 return ret;
702}
703
704static int
705jit_inject(struct jit_buf_desc *jd, char *path)
706{
707 int ret;
708
709 if (verbose > 0)
710 fprintf(stderr, "injecting: %s\n", path);
711
712 ret = jit_open(jd, path);
713 if (ret)
714 return -1;
715
716 ret = jit_process_dump(jd);
717
718 jit_close(jd);
719
720 if (verbose > 0)
721 fprintf(stderr, "injected: %s (%d)\n", path, ret);
722
723 return 0;
724}
725
726
727
728
729
730
731static int
732jit_detect(char *mmap_name, pid_t pid, struct nsinfo *nsi)
733 {
734 char *p;
735 char *end = NULL;
736 pid_t pid2;
737
738 if (verbose > 2)
739 fprintf(stderr, "jit marker trying : %s\n", mmap_name);
740
741
742
743 p = strrchr(mmap_name, '/');
744 if (!p)
745 return -1;
746
747
748
749
750 if (strncmp(p, "/jit-", 5))
751 return -1;
752
753
754
755
756 p += 5;
757
758
759
760
761 if (!isdigit(*p))
762 return -1;
763
764 pid2 = (int)strtol(p, &end, 10);
765 if (!end)
766 return -1;
767
768
769
770
771
772 if (pid && pid2 != nsi->nstgid)
773 return -1;
774
775
776
777 if (strcmp(end, ".dump"))
778 return -1;
779
780 if (verbose > 0)
781 fprintf(stderr, "jit marker found: %s\n", mmap_name);
782
783 return 0;
784}
785
786static void jit_add_pid(struct machine *machine, pid_t pid)
787{
788 struct thread *thread = machine__findnew_thread(machine, pid, pid);
789
790 if (!thread) {
791 pr_err("%s: thread %d not found or created\n", __func__, pid);
792 return;
793 }
794
795 thread->priv = (void *)1;
796}
797
798static bool jit_has_pid(struct machine *machine, pid_t pid)
799{
800 struct thread *thread = machine__find_thread(machine, pid, pid);
801
802 if (!thread)
803 return 0;
804
805 return (bool)thread->priv;
806}
807
808int
809jit_process(struct perf_session *session,
810 struct perf_data *output,
811 struct machine *machine,
812 char *filename,
813 pid_t pid,
814 pid_t tid,
815 u64 *nbytes)
816{
817 struct thread *thread;
818 struct nsinfo *nsi;
819 struct evsel *first;
820 struct jit_buf_desc jd;
821 int ret;
822
823 thread = machine__findnew_thread(machine, pid, tid);
824 if (thread == NULL) {
825 pr_err("problem processing JIT mmap event, skipping it.\n");
826 return 0;
827 }
828
829 nsi = nsinfo__get(thread->nsinfo);
830 thread__put(thread);
831
832
833
834
835 if (jit_detect(filename, pid, nsi)) {
836 nsinfo__put(nsi);
837
838
839 if (jit_has_pid(machine, pid) && (strncmp(filename, "//anon", 6) == 0))
840 return 1;
841
842 return 0;
843 }
844
845 memset(&jd, 0, sizeof(jd));
846
847 jd.session = session;
848 jd.output = output;
849 jd.machine = machine;
850 jd.nsi = nsi;
851
852
853
854
855
856 first = evlist__first(session->evlist);
857 jd.sample_type = first->core.attr.sample_type;
858
859 *nbytes = 0;
860
861 ret = jit_inject(&jd, filename);
862 if (!ret) {
863 jit_add_pid(machine, pid);
864 *nbytes = jd.bytes_written;
865 ret = 1;
866 }
867
868 nsinfo__put(jd.nsi);
869
870 return ret;
871}
872
