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Commit | Line | Data |
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0b452006 RC |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2010 Lennart Poettering | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU Lesser General Public License as published by | |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | systemd is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public License | |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
18 | ***/ | |
19 | ||
0b452006 | 20 | #include <assert.h> |
4f5dd394 | 21 | #include <ctype.h> |
0b452006 | 22 | #include <errno.h> |
7b3e062c | 23 | #include <sched.h> |
0b452006 | 24 | #include <signal.h> |
4f5dd394 LP |
25 | #include <stdbool.h> |
26 | #include <stdio.h> | |
27 | #include <string.h> | |
7b3e062c | 28 | #include <sys/personality.h> |
405f8907 | 29 | #include <sys/prctl.h> |
4f5dd394 LP |
30 | #include <sys/types.h> |
31 | #include <sys/wait.h> | |
32 | #include <unistd.h> | |
0b452006 | 33 | |
b5efdb8a | 34 | #include "alloc-util.h" |
4f5dd394 | 35 | #include "escape.h" |
3ffd4af2 | 36 | #include "fd-util.h" |
0b452006 | 37 | #include "fileio.h" |
f4f15635 | 38 | #include "fs-util.h" |
7b3e062c | 39 | #include "ioprio.h" |
0b452006 | 40 | #include "log.h" |
3ffd4af2 | 41 | #include "process-util.h" |
24882e06 | 42 | #include "signal-util.h" |
7b3e062c | 43 | #include "string-table.h" |
07630cea | 44 | #include "string-util.h" |
b1d4f8e1 | 45 | #include "user-util.h" |
4f5dd394 | 46 | #include "util.h" |
0b452006 RC |
47 | |
48 | int get_process_state(pid_t pid) { | |
49 | const char *p; | |
50 | char state; | |
51 | int r; | |
52 | _cleanup_free_ char *line = NULL; | |
53 | ||
54 | assert(pid >= 0); | |
55 | ||
56 | p = procfs_file_alloca(pid, "stat"); | |
a644184a | 57 | |
0b452006 | 58 | r = read_one_line_file(p, &line); |
a644184a LP |
59 | if (r == -ENOENT) |
60 | return -ESRCH; | |
0b452006 RC |
61 | if (r < 0) |
62 | return r; | |
63 | ||
64 | p = strrchr(line, ')'); | |
65 | if (!p) | |
66 | return -EIO; | |
67 | ||
68 | p++; | |
69 | ||
70 | if (sscanf(p, " %c", &state) != 1) | |
71 | return -EIO; | |
72 | ||
73 | return (unsigned char) state; | |
74 | } | |
75 | ||
76 | int get_process_comm(pid_t pid, char **name) { | |
77 | const char *p; | |
78 | int r; | |
79 | ||
80 | assert(name); | |
81 | assert(pid >= 0); | |
82 | ||
83 | p = procfs_file_alloca(pid, "comm"); | |
84 | ||
85 | r = read_one_line_file(p, name); | |
86 | if (r == -ENOENT) | |
87 | return -ESRCH; | |
88 | ||
89 | return r; | |
90 | } | |
91 | ||
92 | int get_process_cmdline(pid_t pid, size_t max_length, bool comm_fallback, char **line) { | |
93 | _cleanup_fclose_ FILE *f = NULL; | |
94 | char *r = NULL, *k; | |
95 | const char *p; | |
96 | int c; | |
97 | ||
98 | assert(line); | |
99 | assert(pid >= 0); | |
100 | ||
101 | p = procfs_file_alloca(pid, "cmdline"); | |
102 | ||
103 | f = fopen(p, "re"); | |
a644184a LP |
104 | if (!f) { |
105 | if (errno == ENOENT) | |
106 | return -ESRCH; | |
0b452006 | 107 | return -errno; |
a644184a | 108 | } |
0b452006 RC |
109 | |
110 | if (max_length == 0) { | |
111 | size_t len = 0, allocated = 0; | |
112 | ||
113 | while ((c = getc(f)) != EOF) { | |
114 | ||
115 | if (!GREEDY_REALLOC(r, allocated, len+2)) { | |
116 | free(r); | |
117 | return -ENOMEM; | |
118 | } | |
119 | ||
120 | r[len++] = isprint(c) ? c : ' '; | |
121 | } | |
122 | ||
123 | if (len > 0) | |
124 | r[len-1] = 0; | |
125 | ||
126 | } else { | |
127 | bool space = false; | |
128 | size_t left; | |
129 | ||
130 | r = new(char, max_length); | |
131 | if (!r) | |
132 | return -ENOMEM; | |
133 | ||
134 | k = r; | |
135 | left = max_length; | |
136 | while ((c = getc(f)) != EOF) { | |
137 | ||
138 | if (isprint(c)) { | |
139 | if (space) { | |
140 | if (left <= 4) | |
141 | break; | |
142 | ||
143 | *(k++) = ' '; | |
144 | left--; | |
145 | space = false; | |
146 | } | |
147 | ||
148 | if (left <= 4) | |
149 | break; | |
150 | ||
151 | *(k++) = (char) c; | |
152 | left--; | |
153 | } else | |
154 | space = true; | |
155 | } | |
156 | ||
157 | if (left <= 4) { | |
158 | size_t n = MIN(left-1, 3U); | |
159 | memcpy(k, "...", n); | |
160 | k[n] = 0; | |
161 | } else | |
162 | *k = 0; | |
163 | } | |
164 | ||
165 | /* Kernel threads have no argv[] */ | |
166 | if (isempty(r)) { | |
167 | _cleanup_free_ char *t = NULL; | |
168 | int h; | |
169 | ||
170 | free(r); | |
171 | ||
172 | if (!comm_fallback) | |
173 | return -ENOENT; | |
174 | ||
175 | h = get_process_comm(pid, &t); | |
176 | if (h < 0) | |
177 | return h; | |
178 | ||
179 | r = strjoin("[", t, "]", NULL); | |
180 | if (!r) | |
181 | return -ENOMEM; | |
182 | } | |
183 | ||
184 | *line = r; | |
185 | return 0; | |
186 | } | |
187 | ||
405f8907 LP |
188 | void rename_process(const char name[8]) { |
189 | assert(name); | |
190 | ||
191 | /* This is a like a poor man's setproctitle(). It changes the | |
192 | * comm field, argv[0], and also the glibc's internally used | |
193 | * name of the process. For the first one a limit of 16 chars | |
194 | * applies, to the second one usually one of 10 (i.e. length | |
195 | * of "/sbin/init"), to the third one one of 7 (i.e. length of | |
196 | * "systemd"). If you pass a longer string it will be | |
197 | * truncated */ | |
198 | ||
199 | prctl(PR_SET_NAME, name); | |
200 | ||
201 | if (program_invocation_name) | |
202 | strncpy(program_invocation_name, name, strlen(program_invocation_name)); | |
203 | ||
204 | if (saved_argc > 0) { | |
205 | int i; | |
206 | ||
207 | if (saved_argv[0]) | |
208 | strncpy(saved_argv[0], name, strlen(saved_argv[0])); | |
209 | ||
210 | for (i = 1; i < saved_argc; i++) { | |
211 | if (!saved_argv[i]) | |
212 | break; | |
213 | ||
214 | memzero(saved_argv[i], strlen(saved_argv[i])); | |
215 | } | |
216 | } | |
217 | } | |
218 | ||
0b452006 RC |
219 | int is_kernel_thread(pid_t pid) { |
220 | const char *p; | |
221 | size_t count; | |
222 | char c; | |
223 | bool eof; | |
224 | FILE *f; | |
225 | ||
a6149b93 | 226 | if (pid == 0 || pid == 1) /* pid 1, and we ourselves certainly aren't a kernel thread */ |
0b452006 RC |
227 | return 0; |
228 | ||
a6149b93 | 229 | assert(pid > 1); |
0b452006 RC |
230 | |
231 | p = procfs_file_alloca(pid, "cmdline"); | |
232 | f = fopen(p, "re"); | |
a644184a LP |
233 | if (!f) { |
234 | if (errno == ENOENT) | |
235 | return -ESRCH; | |
0b452006 | 236 | return -errno; |
a644184a | 237 | } |
0b452006 RC |
238 | |
239 | count = fread(&c, 1, 1, f); | |
240 | eof = feof(f); | |
241 | fclose(f); | |
242 | ||
243 | /* Kernel threads have an empty cmdline */ | |
244 | ||
245 | if (count <= 0) | |
246 | return eof ? 1 : -errno; | |
247 | ||
248 | return 0; | |
249 | } | |
250 | ||
251 | int get_process_capeff(pid_t pid, char **capeff) { | |
252 | const char *p; | |
a644184a | 253 | int r; |
0b452006 RC |
254 | |
255 | assert(capeff); | |
256 | assert(pid >= 0); | |
257 | ||
258 | p = procfs_file_alloca(pid, "status"); | |
259 | ||
c4cd1d4d | 260 | r = get_proc_field(p, "CapEff", WHITESPACE, capeff); |
a644184a LP |
261 | if (r == -ENOENT) |
262 | return -ESRCH; | |
263 | ||
264 | return r; | |
0b452006 RC |
265 | } |
266 | ||
267 | static int get_process_link_contents(const char *proc_file, char **name) { | |
268 | int r; | |
269 | ||
270 | assert(proc_file); | |
271 | assert(name); | |
272 | ||
273 | r = readlink_malloc(proc_file, name); | |
a644184a LP |
274 | if (r == -ENOENT) |
275 | return -ESRCH; | |
0b452006 | 276 | if (r < 0) |
a644184a | 277 | return r; |
0b452006 RC |
278 | |
279 | return 0; | |
280 | } | |
281 | ||
282 | int get_process_exe(pid_t pid, char **name) { | |
283 | const char *p; | |
284 | char *d; | |
285 | int r; | |
286 | ||
287 | assert(pid >= 0); | |
288 | ||
289 | p = procfs_file_alloca(pid, "exe"); | |
290 | r = get_process_link_contents(p, name); | |
291 | if (r < 0) | |
292 | return r; | |
293 | ||
294 | d = endswith(*name, " (deleted)"); | |
295 | if (d) | |
296 | *d = '\0'; | |
297 | ||
298 | return 0; | |
299 | } | |
300 | ||
301 | static int get_process_id(pid_t pid, const char *field, uid_t *uid) { | |
302 | _cleanup_fclose_ FILE *f = NULL; | |
303 | char line[LINE_MAX]; | |
304 | const char *p; | |
305 | ||
306 | assert(field); | |
307 | assert(uid); | |
308 | ||
309 | if (pid == 0) | |
310 | return getuid(); | |
311 | ||
312 | p = procfs_file_alloca(pid, "status"); | |
313 | f = fopen(p, "re"); | |
a644184a LP |
314 | if (!f) { |
315 | if (errno == ENOENT) | |
316 | return -ESRCH; | |
0b452006 | 317 | return -errno; |
a644184a | 318 | } |
0b452006 RC |
319 | |
320 | FOREACH_LINE(line, f, return -errno) { | |
321 | char *l; | |
322 | ||
323 | l = strstrip(line); | |
324 | ||
325 | if (startswith(l, field)) { | |
326 | l += strlen(field); | |
327 | l += strspn(l, WHITESPACE); | |
328 | ||
329 | l[strcspn(l, WHITESPACE)] = 0; | |
330 | ||
331 | return parse_uid(l, uid); | |
332 | } | |
333 | } | |
334 | ||
335 | return -EIO; | |
336 | } | |
337 | ||
338 | int get_process_uid(pid_t pid, uid_t *uid) { | |
339 | return get_process_id(pid, "Uid:", uid); | |
340 | } | |
341 | ||
342 | int get_process_gid(pid_t pid, gid_t *gid) { | |
343 | assert_cc(sizeof(uid_t) == sizeof(gid_t)); | |
344 | return get_process_id(pid, "Gid:", gid); | |
345 | } | |
346 | ||
347 | int get_process_cwd(pid_t pid, char **cwd) { | |
348 | const char *p; | |
349 | ||
350 | assert(pid >= 0); | |
351 | ||
352 | p = procfs_file_alloca(pid, "cwd"); | |
353 | ||
354 | return get_process_link_contents(p, cwd); | |
355 | } | |
356 | ||
357 | int get_process_root(pid_t pid, char **root) { | |
358 | const char *p; | |
359 | ||
360 | assert(pid >= 0); | |
361 | ||
362 | p = procfs_file_alloca(pid, "root"); | |
363 | ||
364 | return get_process_link_contents(p, root); | |
365 | } | |
366 | ||
367 | int get_process_environ(pid_t pid, char **env) { | |
368 | _cleanup_fclose_ FILE *f = NULL; | |
369 | _cleanup_free_ char *outcome = NULL; | |
370 | int c; | |
371 | const char *p; | |
372 | size_t allocated = 0, sz = 0; | |
373 | ||
374 | assert(pid >= 0); | |
375 | assert(env); | |
376 | ||
377 | p = procfs_file_alloca(pid, "environ"); | |
378 | ||
379 | f = fopen(p, "re"); | |
a644184a LP |
380 | if (!f) { |
381 | if (errno == ENOENT) | |
382 | return -ESRCH; | |
0b452006 | 383 | return -errno; |
a644184a | 384 | } |
0b452006 RC |
385 | |
386 | while ((c = fgetc(f)) != EOF) { | |
387 | if (!GREEDY_REALLOC(outcome, allocated, sz + 5)) | |
388 | return -ENOMEM; | |
389 | ||
390 | if (c == '\0') | |
391 | outcome[sz++] = '\n'; | |
392 | else | |
393 | sz += cescape_char(c, outcome + sz); | |
394 | } | |
395 | ||
03c55bc0 LP |
396 | if (!outcome) { |
397 | outcome = strdup(""); | |
398 | if (!outcome) | |
399 | return -ENOMEM; | |
400 | } else | |
401 | outcome[sz] = '\0'; | |
de8763b6 | 402 | |
0b452006 RC |
403 | *env = outcome; |
404 | outcome = NULL; | |
405 | ||
406 | return 0; | |
407 | } | |
408 | ||
6bc73acb | 409 | int get_process_ppid(pid_t pid, pid_t *_ppid) { |
0b452006 RC |
410 | int r; |
411 | _cleanup_free_ char *line = NULL; | |
412 | long unsigned ppid; | |
413 | const char *p; | |
414 | ||
415 | assert(pid >= 0); | |
416 | assert(_ppid); | |
417 | ||
418 | if (pid == 0) { | |
419 | *_ppid = getppid(); | |
420 | return 0; | |
421 | } | |
422 | ||
423 | p = procfs_file_alloca(pid, "stat"); | |
424 | r = read_one_line_file(p, &line); | |
a644184a LP |
425 | if (r == -ENOENT) |
426 | return -ESRCH; | |
0b452006 RC |
427 | if (r < 0) |
428 | return r; | |
429 | ||
430 | /* Let's skip the pid and comm fields. The latter is enclosed | |
431 | * in () but does not escape any () in its value, so let's | |
432 | * skip over it manually */ | |
433 | ||
434 | p = strrchr(line, ')'); | |
435 | if (!p) | |
436 | return -EIO; | |
437 | ||
438 | p++; | |
439 | ||
440 | if (sscanf(p, " " | |
441 | "%*c " /* state */ | |
442 | "%lu ", /* ppid */ | |
443 | &ppid) != 1) | |
444 | return -EIO; | |
445 | ||
446 | if ((long unsigned) (pid_t) ppid != ppid) | |
447 | return -ERANGE; | |
448 | ||
449 | *_ppid = (pid_t) ppid; | |
450 | ||
451 | return 0; | |
452 | } | |
453 | ||
454 | int wait_for_terminate(pid_t pid, siginfo_t *status) { | |
455 | siginfo_t dummy; | |
456 | ||
457 | assert(pid >= 1); | |
458 | ||
459 | if (!status) | |
460 | status = &dummy; | |
461 | ||
462 | for (;;) { | |
463 | zero(*status); | |
464 | ||
465 | if (waitid(P_PID, pid, status, WEXITED) < 0) { | |
466 | ||
467 | if (errno == EINTR) | |
468 | continue; | |
469 | ||
470 | return -errno; | |
471 | } | |
472 | ||
473 | return 0; | |
474 | } | |
475 | } | |
476 | ||
477 | /* | |
478 | * Return values: | |
479 | * < 0 : wait_for_terminate() failed to get the state of the | |
480 | * process, the process was terminated by a signal, or | |
481 | * failed for an unknown reason. | |
482 | * >=0 : The process terminated normally, and its exit code is | |
483 | * returned. | |
484 | * | |
485 | * That is, success is indicated by a return value of zero, and an | |
486 | * error is indicated by a non-zero value. | |
487 | * | |
488 | * A warning is emitted if the process terminates abnormally, | |
489 | * and also if it returns non-zero unless check_exit_code is true. | |
490 | */ | |
491 | int wait_for_terminate_and_warn(const char *name, pid_t pid, bool check_exit_code) { | |
492 | int r; | |
493 | siginfo_t status; | |
494 | ||
495 | assert(name); | |
496 | assert(pid > 1); | |
497 | ||
498 | r = wait_for_terminate(pid, &status); | |
499 | if (r < 0) | |
500 | return log_warning_errno(r, "Failed to wait for %s: %m", name); | |
501 | ||
502 | if (status.si_code == CLD_EXITED) { | |
503 | if (status.si_status != 0) | |
504 | log_full(check_exit_code ? LOG_WARNING : LOG_DEBUG, | |
505 | "%s failed with error code %i.", name, status.si_status); | |
506 | else | |
507 | log_debug("%s succeeded.", name); | |
508 | ||
509 | return status.si_status; | |
510 | } else if (status.si_code == CLD_KILLED || | |
511 | status.si_code == CLD_DUMPED) { | |
512 | ||
513 | log_warning("%s terminated by signal %s.", name, signal_to_string(status.si_status)); | |
514 | return -EPROTO; | |
515 | } | |
516 | ||
517 | log_warning("%s failed due to unknown reason.", name); | |
518 | return -EPROTO; | |
519 | } | |
520 | ||
4d0d3d41 LP |
521 | void sigkill_wait(pid_t *pid) { |
522 | if (!pid) | |
523 | return; | |
524 | if (*pid <= 1) | |
525 | return; | |
526 | ||
527 | if (kill(*pid, SIGKILL) > 0) | |
528 | (void) wait_for_terminate(*pid, NULL); | |
529 | } | |
530 | ||
0b452006 RC |
531 | int kill_and_sigcont(pid_t pid, int sig) { |
532 | int r; | |
533 | ||
534 | r = kill(pid, sig) < 0 ? -errno : 0; | |
535 | ||
536 | if (r >= 0) | |
537 | kill(pid, SIGCONT); | |
538 | ||
539 | return r; | |
540 | } | |
541 | ||
542 | int getenv_for_pid(pid_t pid, const char *field, char **_value) { | |
543 | _cleanup_fclose_ FILE *f = NULL; | |
544 | char *value = NULL; | |
545 | int r; | |
546 | bool done = false; | |
547 | size_t l; | |
548 | const char *path; | |
549 | ||
550 | assert(pid >= 0); | |
551 | assert(field); | |
552 | assert(_value); | |
553 | ||
554 | path = procfs_file_alloca(pid, "environ"); | |
555 | ||
556 | f = fopen(path, "re"); | |
a644184a LP |
557 | if (!f) { |
558 | if (errno == ENOENT) | |
559 | return -ESRCH; | |
0b452006 | 560 | return -errno; |
a644184a | 561 | } |
0b452006 RC |
562 | |
563 | l = strlen(field); | |
564 | r = 0; | |
565 | ||
566 | do { | |
567 | char line[LINE_MAX]; | |
568 | unsigned i; | |
569 | ||
570 | for (i = 0; i < sizeof(line)-1; i++) { | |
571 | int c; | |
572 | ||
573 | c = getc(f); | |
574 | if (_unlikely_(c == EOF)) { | |
575 | done = true; | |
576 | break; | |
577 | } else if (c == 0) | |
578 | break; | |
579 | ||
580 | line[i] = c; | |
581 | } | |
582 | line[i] = 0; | |
583 | ||
584 | if (memcmp(line, field, l) == 0 && line[l] == '=') { | |
585 | value = strdup(line + l + 1); | |
586 | if (!value) | |
587 | return -ENOMEM; | |
588 | ||
589 | r = 1; | |
590 | break; | |
591 | } | |
592 | ||
593 | } while (!done); | |
594 | ||
595 | *_value = value; | |
596 | return r; | |
597 | } | |
598 | ||
599 | bool pid_is_unwaited(pid_t pid) { | |
600 | /* Checks whether a PID is still valid at all, including a zombie */ | |
601 | ||
5fd9b2c5 | 602 | if (pid < 0) |
0b452006 RC |
603 | return false; |
604 | ||
5fd9b2c5 LP |
605 | if (pid <= 1) /* If we or PID 1 would be dead and have been waited for, this code would not be running */ |
606 | return true; | |
607 | ||
0b452006 RC |
608 | if (kill(pid, 0) >= 0) |
609 | return true; | |
610 | ||
611 | return errno != ESRCH; | |
612 | } | |
613 | ||
614 | bool pid_is_alive(pid_t pid) { | |
615 | int r; | |
616 | ||
617 | /* Checks whether a PID is still valid and not a zombie */ | |
618 | ||
5fd9b2c5 | 619 | if (pid < 0) |
0b452006 RC |
620 | return false; |
621 | ||
5fd9b2c5 LP |
622 | if (pid <= 1) /* If we or PID 1 would be a zombie, this code would not be running */ |
623 | return true; | |
624 | ||
0b452006 | 625 | r = get_process_state(pid); |
a644184a | 626 | if (r == -ESRCH || r == 'Z') |
0b452006 RC |
627 | return false; |
628 | ||
629 | return true; | |
630 | } | |
d4510856 LP |
631 | |
632 | bool is_main_thread(void) { | |
633 | static thread_local int cached = 0; | |
634 | ||
635 | if (_unlikely_(cached == 0)) | |
636 | cached = getpid() == gettid() ? 1 : -1; | |
637 | ||
638 | return cached > 0; | |
639 | } | |
7b3e062c LP |
640 | |
641 | noreturn void freeze(void) { | |
642 | ||
643 | /* Make sure nobody waits for us on a socket anymore */ | |
644 | close_all_fds(NULL, 0); | |
645 | ||
646 | sync(); | |
647 | ||
648 | for (;;) | |
649 | pause(); | |
650 | } | |
651 | ||
652 | bool oom_score_adjust_is_valid(int oa) { | |
653 | return oa >= OOM_SCORE_ADJ_MIN && oa <= OOM_SCORE_ADJ_MAX; | |
654 | } | |
655 | ||
656 | unsigned long personality_from_string(const char *p) { | |
657 | ||
658 | /* Parse a personality specifier. We introduce our own | |
659 | * identifiers that indicate specific ABIs, rather than just | |
660 | * hints regarding the register size, since we want to keep | |
661 | * things open for multiple locally supported ABIs for the | |
662 | * same register size. We try to reuse the ABI identifiers | |
663 | * used by libseccomp. */ | |
664 | ||
665 | #if defined(__x86_64__) | |
666 | ||
667 | if (streq(p, "x86")) | |
668 | return PER_LINUX32; | |
669 | ||
670 | if (streq(p, "x86-64")) | |
671 | return PER_LINUX; | |
672 | ||
673 | #elif defined(__i386__) | |
674 | ||
675 | if (streq(p, "x86")) | |
676 | return PER_LINUX; | |
677 | ||
678 | #elif defined(__s390x__) | |
679 | ||
680 | if (streq(p, "s390")) | |
681 | return PER_LINUX32; | |
682 | ||
683 | if (streq(p, "s390x")) | |
684 | return PER_LINUX; | |
685 | ||
686 | #elif defined(__s390__) | |
687 | ||
688 | if (streq(p, "s390")) | |
689 | return PER_LINUX; | |
690 | #endif | |
691 | ||
692 | return PERSONALITY_INVALID; | |
693 | } | |
694 | ||
695 | const char* personality_to_string(unsigned long p) { | |
696 | ||
697 | #if defined(__x86_64__) | |
698 | ||
699 | if (p == PER_LINUX32) | |
700 | return "x86"; | |
701 | ||
702 | if (p == PER_LINUX) | |
703 | return "x86-64"; | |
704 | ||
705 | #elif defined(__i386__) | |
706 | ||
707 | if (p == PER_LINUX) | |
708 | return "x86"; | |
709 | ||
710 | #elif defined(__s390x__) | |
711 | ||
712 | if (p == PER_LINUX) | |
713 | return "s390x"; | |
714 | ||
715 | if (p == PER_LINUX32) | |
716 | return "s390"; | |
717 | ||
718 | #elif defined(__s390__) | |
719 | ||
720 | if (p == PER_LINUX) | |
721 | return "s390"; | |
722 | ||
723 | #endif | |
724 | ||
725 | return NULL; | |
726 | } | |
727 | ||
728 | static const char *const ioprio_class_table[] = { | |
729 | [IOPRIO_CLASS_NONE] = "none", | |
730 | [IOPRIO_CLASS_RT] = "realtime", | |
731 | [IOPRIO_CLASS_BE] = "best-effort", | |
732 | [IOPRIO_CLASS_IDLE] = "idle" | |
733 | }; | |
734 | ||
735 | DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(ioprio_class, int, INT_MAX); | |
736 | ||
737 | static const char *const sigchld_code_table[] = { | |
738 | [CLD_EXITED] = "exited", | |
739 | [CLD_KILLED] = "killed", | |
740 | [CLD_DUMPED] = "dumped", | |
741 | [CLD_TRAPPED] = "trapped", | |
742 | [CLD_STOPPED] = "stopped", | |
743 | [CLD_CONTINUED] = "continued", | |
744 | }; | |
745 | ||
746 | DEFINE_STRING_TABLE_LOOKUP(sigchld_code, int); | |
747 | ||
748 | static const char* const sched_policy_table[] = { | |
749 | [SCHED_OTHER] = "other", | |
750 | [SCHED_BATCH] = "batch", | |
751 | [SCHED_IDLE] = "idle", | |
752 | [SCHED_FIFO] = "fifo", | |
753 | [SCHED_RR] = "rr" | |
754 | }; | |
755 | ||
756 | DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(sched_policy, int, INT_MAX); |