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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 | ||
4f5dd394 | 20 | #include <ctype.h> |
0b452006 | 21 | #include <errno.h> |
11c3a366 TA |
22 | #include <limits.h> |
23 | #include <linux/oom.h> | |
7b3e062c | 24 | #include <sched.h> |
0b452006 | 25 | #include <signal.h> |
4f5dd394 LP |
26 | #include <stdbool.h> |
27 | #include <stdio.h> | |
11c3a366 | 28 | #include <stdlib.h> |
4f5dd394 | 29 | #include <string.h> |
7b3e062c | 30 | #include <sys/personality.h> |
405f8907 | 31 | #include <sys/prctl.h> |
4f5dd394 LP |
32 | #include <sys/types.h> |
33 | #include <sys/wait.h> | |
11c3a366 | 34 | #include <syslog.h> |
4f5dd394 | 35 | #include <unistd.h> |
0b452006 | 36 | |
b5efdb8a | 37 | #include "alloc-util.h" |
4f5dd394 | 38 | #include "escape.h" |
3ffd4af2 | 39 | #include "fd-util.h" |
0b452006 | 40 | #include "fileio.h" |
f4f15635 | 41 | #include "fs-util.h" |
7b3e062c | 42 | #include "ioprio.h" |
0b452006 | 43 | #include "log.h" |
3ffd4af2 | 44 | #include "process-util.h" |
24882e06 | 45 | #include "signal-util.h" |
11c3a366 TA |
46 | #include "macro.h" |
47 | #include "missing.h" | |
7b3e062c | 48 | #include "string-table.h" |
07630cea | 49 | #include "string-util.h" |
b1d4f8e1 | 50 | #include "user-util.h" |
4f5dd394 | 51 | #include "util.h" |
0b452006 RC |
52 | |
53 | int get_process_state(pid_t pid) { | |
54 | const char *p; | |
55 | char state; | |
56 | int r; | |
57 | _cleanup_free_ char *line = NULL; | |
58 | ||
59 | assert(pid >= 0); | |
60 | ||
61 | p = procfs_file_alloca(pid, "stat"); | |
a644184a | 62 | |
0b452006 | 63 | r = read_one_line_file(p, &line); |
a644184a LP |
64 | if (r == -ENOENT) |
65 | return -ESRCH; | |
0b452006 RC |
66 | if (r < 0) |
67 | return r; | |
68 | ||
69 | p = strrchr(line, ')'); | |
70 | if (!p) | |
71 | return -EIO; | |
72 | ||
73 | p++; | |
74 | ||
75 | if (sscanf(p, " %c", &state) != 1) | |
76 | return -EIO; | |
77 | ||
78 | return (unsigned char) state; | |
79 | } | |
80 | ||
81 | int get_process_comm(pid_t pid, char **name) { | |
82 | const char *p; | |
83 | int r; | |
84 | ||
85 | assert(name); | |
86 | assert(pid >= 0); | |
87 | ||
88 | p = procfs_file_alloca(pid, "comm"); | |
89 | ||
90 | r = read_one_line_file(p, name); | |
91 | if (r == -ENOENT) | |
92 | return -ESRCH; | |
93 | ||
94 | return r; | |
95 | } | |
96 | ||
97 | int get_process_cmdline(pid_t pid, size_t max_length, bool comm_fallback, char **line) { | |
98 | _cleanup_fclose_ FILE *f = NULL; | |
99 | char *r = NULL, *k; | |
100 | const char *p; | |
101 | int c; | |
102 | ||
103 | assert(line); | |
104 | assert(pid >= 0); | |
105 | ||
106 | p = procfs_file_alloca(pid, "cmdline"); | |
107 | ||
108 | f = fopen(p, "re"); | |
a644184a LP |
109 | if (!f) { |
110 | if (errno == ENOENT) | |
111 | return -ESRCH; | |
0b452006 | 112 | return -errno; |
a644184a | 113 | } |
0b452006 RC |
114 | |
115 | if (max_length == 0) { | |
116 | size_t len = 0, allocated = 0; | |
117 | ||
118 | while ((c = getc(f)) != EOF) { | |
119 | ||
120 | if (!GREEDY_REALLOC(r, allocated, len+2)) { | |
121 | free(r); | |
122 | return -ENOMEM; | |
123 | } | |
124 | ||
125 | r[len++] = isprint(c) ? c : ' '; | |
126 | } | |
127 | ||
128 | if (len > 0) | |
129 | r[len-1] = 0; | |
130 | ||
131 | } else { | |
132 | bool space = false; | |
133 | size_t left; | |
134 | ||
135 | r = new(char, max_length); | |
136 | if (!r) | |
137 | return -ENOMEM; | |
138 | ||
139 | k = r; | |
140 | left = max_length; | |
141 | while ((c = getc(f)) != EOF) { | |
142 | ||
143 | if (isprint(c)) { | |
144 | if (space) { | |
145 | if (left <= 4) | |
146 | break; | |
147 | ||
148 | *(k++) = ' '; | |
149 | left--; | |
150 | space = false; | |
151 | } | |
152 | ||
153 | if (left <= 4) | |
154 | break; | |
155 | ||
156 | *(k++) = (char) c; | |
157 | left--; | |
158 | } else | |
159 | space = true; | |
160 | } | |
161 | ||
162 | if (left <= 4) { | |
163 | size_t n = MIN(left-1, 3U); | |
164 | memcpy(k, "...", n); | |
165 | k[n] = 0; | |
166 | } else | |
167 | *k = 0; | |
168 | } | |
169 | ||
170 | /* Kernel threads have no argv[] */ | |
171 | if (isempty(r)) { | |
172 | _cleanup_free_ char *t = NULL; | |
173 | int h; | |
174 | ||
175 | free(r); | |
176 | ||
177 | if (!comm_fallback) | |
178 | return -ENOENT; | |
179 | ||
180 | h = get_process_comm(pid, &t); | |
181 | if (h < 0) | |
182 | return h; | |
183 | ||
184 | r = strjoin("[", t, "]", NULL); | |
185 | if (!r) | |
186 | return -ENOMEM; | |
187 | } | |
188 | ||
189 | *line = r; | |
190 | return 0; | |
191 | } | |
192 | ||
405f8907 LP |
193 | void rename_process(const char name[8]) { |
194 | assert(name); | |
195 | ||
196 | /* This is a like a poor man's setproctitle(). It changes the | |
197 | * comm field, argv[0], and also the glibc's internally used | |
198 | * name of the process. For the first one a limit of 16 chars | |
199 | * applies, to the second one usually one of 10 (i.e. length | |
200 | * of "/sbin/init"), to the third one one of 7 (i.e. length of | |
201 | * "systemd"). If you pass a longer string it will be | |
202 | * truncated */ | |
203 | ||
204 | prctl(PR_SET_NAME, name); | |
205 | ||
206 | if (program_invocation_name) | |
207 | strncpy(program_invocation_name, name, strlen(program_invocation_name)); | |
208 | ||
209 | if (saved_argc > 0) { | |
210 | int i; | |
211 | ||
212 | if (saved_argv[0]) | |
213 | strncpy(saved_argv[0], name, strlen(saved_argv[0])); | |
214 | ||
215 | for (i = 1; i < saved_argc; i++) { | |
216 | if (!saved_argv[i]) | |
217 | break; | |
218 | ||
219 | memzero(saved_argv[i], strlen(saved_argv[i])); | |
220 | } | |
221 | } | |
222 | } | |
223 | ||
0b452006 RC |
224 | int is_kernel_thread(pid_t pid) { |
225 | const char *p; | |
226 | size_t count; | |
227 | char c; | |
228 | bool eof; | |
229 | FILE *f; | |
230 | ||
a6149b93 | 231 | if (pid == 0 || pid == 1) /* pid 1, and we ourselves certainly aren't a kernel thread */ |
0b452006 RC |
232 | return 0; |
233 | ||
a6149b93 | 234 | assert(pid > 1); |
0b452006 RC |
235 | |
236 | p = procfs_file_alloca(pid, "cmdline"); | |
237 | f = fopen(p, "re"); | |
a644184a LP |
238 | if (!f) { |
239 | if (errno == ENOENT) | |
240 | return -ESRCH; | |
0b452006 | 241 | return -errno; |
a644184a | 242 | } |
0b452006 RC |
243 | |
244 | count = fread(&c, 1, 1, f); | |
245 | eof = feof(f); | |
246 | fclose(f); | |
247 | ||
248 | /* Kernel threads have an empty cmdline */ | |
249 | ||
250 | if (count <= 0) | |
251 | return eof ? 1 : -errno; | |
252 | ||
253 | return 0; | |
254 | } | |
255 | ||
256 | int get_process_capeff(pid_t pid, char **capeff) { | |
257 | const char *p; | |
a644184a | 258 | int r; |
0b452006 RC |
259 | |
260 | assert(capeff); | |
261 | assert(pid >= 0); | |
262 | ||
263 | p = procfs_file_alloca(pid, "status"); | |
264 | ||
c4cd1d4d | 265 | r = get_proc_field(p, "CapEff", WHITESPACE, capeff); |
a644184a LP |
266 | if (r == -ENOENT) |
267 | return -ESRCH; | |
268 | ||
269 | return r; | |
0b452006 RC |
270 | } |
271 | ||
272 | static int get_process_link_contents(const char *proc_file, char **name) { | |
273 | int r; | |
274 | ||
275 | assert(proc_file); | |
276 | assert(name); | |
277 | ||
278 | r = readlink_malloc(proc_file, name); | |
a644184a LP |
279 | if (r == -ENOENT) |
280 | return -ESRCH; | |
0b452006 | 281 | if (r < 0) |
a644184a | 282 | return r; |
0b452006 RC |
283 | |
284 | return 0; | |
285 | } | |
286 | ||
287 | int get_process_exe(pid_t pid, char **name) { | |
288 | const char *p; | |
289 | char *d; | |
290 | int r; | |
291 | ||
292 | assert(pid >= 0); | |
293 | ||
294 | p = procfs_file_alloca(pid, "exe"); | |
295 | r = get_process_link_contents(p, name); | |
296 | if (r < 0) | |
297 | return r; | |
298 | ||
299 | d = endswith(*name, " (deleted)"); | |
300 | if (d) | |
301 | *d = '\0'; | |
302 | ||
303 | return 0; | |
304 | } | |
305 | ||
306 | static int get_process_id(pid_t pid, const char *field, uid_t *uid) { | |
307 | _cleanup_fclose_ FILE *f = NULL; | |
308 | char line[LINE_MAX]; | |
309 | const char *p; | |
310 | ||
311 | assert(field); | |
312 | assert(uid); | |
313 | ||
314 | if (pid == 0) | |
315 | return getuid(); | |
316 | ||
317 | p = procfs_file_alloca(pid, "status"); | |
318 | f = fopen(p, "re"); | |
a644184a LP |
319 | if (!f) { |
320 | if (errno == ENOENT) | |
321 | return -ESRCH; | |
0b452006 | 322 | return -errno; |
a644184a | 323 | } |
0b452006 RC |
324 | |
325 | FOREACH_LINE(line, f, return -errno) { | |
326 | char *l; | |
327 | ||
328 | l = strstrip(line); | |
329 | ||
330 | if (startswith(l, field)) { | |
331 | l += strlen(field); | |
332 | l += strspn(l, WHITESPACE); | |
333 | ||
334 | l[strcspn(l, WHITESPACE)] = 0; | |
335 | ||
336 | return parse_uid(l, uid); | |
337 | } | |
338 | } | |
339 | ||
340 | return -EIO; | |
341 | } | |
342 | ||
343 | int get_process_uid(pid_t pid, uid_t *uid) { | |
344 | return get_process_id(pid, "Uid:", uid); | |
345 | } | |
346 | ||
347 | int get_process_gid(pid_t pid, gid_t *gid) { | |
348 | assert_cc(sizeof(uid_t) == sizeof(gid_t)); | |
349 | return get_process_id(pid, "Gid:", gid); | |
350 | } | |
351 | ||
352 | int get_process_cwd(pid_t pid, char **cwd) { | |
353 | const char *p; | |
354 | ||
355 | assert(pid >= 0); | |
356 | ||
357 | p = procfs_file_alloca(pid, "cwd"); | |
358 | ||
359 | return get_process_link_contents(p, cwd); | |
360 | } | |
361 | ||
362 | int get_process_root(pid_t pid, char **root) { | |
363 | const char *p; | |
364 | ||
365 | assert(pid >= 0); | |
366 | ||
367 | p = procfs_file_alloca(pid, "root"); | |
368 | ||
369 | return get_process_link_contents(p, root); | |
370 | } | |
371 | ||
372 | int get_process_environ(pid_t pid, char **env) { | |
373 | _cleanup_fclose_ FILE *f = NULL; | |
374 | _cleanup_free_ char *outcome = NULL; | |
375 | int c; | |
376 | const char *p; | |
377 | size_t allocated = 0, sz = 0; | |
378 | ||
379 | assert(pid >= 0); | |
380 | assert(env); | |
381 | ||
382 | p = procfs_file_alloca(pid, "environ"); | |
383 | ||
384 | f = fopen(p, "re"); | |
a644184a LP |
385 | if (!f) { |
386 | if (errno == ENOENT) | |
387 | return -ESRCH; | |
0b452006 | 388 | return -errno; |
a644184a | 389 | } |
0b452006 RC |
390 | |
391 | while ((c = fgetc(f)) != EOF) { | |
392 | if (!GREEDY_REALLOC(outcome, allocated, sz + 5)) | |
393 | return -ENOMEM; | |
394 | ||
395 | if (c == '\0') | |
396 | outcome[sz++] = '\n'; | |
397 | else | |
398 | sz += cescape_char(c, outcome + sz); | |
399 | } | |
400 | ||
03c55bc0 LP |
401 | if (!outcome) { |
402 | outcome = strdup(""); | |
403 | if (!outcome) | |
404 | return -ENOMEM; | |
405 | } else | |
406 | outcome[sz] = '\0'; | |
de8763b6 | 407 | |
0b452006 RC |
408 | *env = outcome; |
409 | outcome = NULL; | |
410 | ||
411 | return 0; | |
412 | } | |
413 | ||
6bc73acb | 414 | int get_process_ppid(pid_t pid, pid_t *_ppid) { |
0b452006 RC |
415 | int r; |
416 | _cleanup_free_ char *line = NULL; | |
417 | long unsigned ppid; | |
418 | const char *p; | |
419 | ||
420 | assert(pid >= 0); | |
421 | assert(_ppid); | |
422 | ||
423 | if (pid == 0) { | |
424 | *_ppid = getppid(); | |
425 | return 0; | |
426 | } | |
427 | ||
428 | p = procfs_file_alloca(pid, "stat"); | |
429 | r = read_one_line_file(p, &line); | |
a644184a LP |
430 | if (r == -ENOENT) |
431 | return -ESRCH; | |
0b452006 RC |
432 | if (r < 0) |
433 | return r; | |
434 | ||
435 | /* Let's skip the pid and comm fields. The latter is enclosed | |
436 | * in () but does not escape any () in its value, so let's | |
437 | * skip over it manually */ | |
438 | ||
439 | p = strrchr(line, ')'); | |
440 | if (!p) | |
441 | return -EIO; | |
442 | ||
443 | p++; | |
444 | ||
445 | if (sscanf(p, " " | |
446 | "%*c " /* state */ | |
447 | "%lu ", /* ppid */ | |
448 | &ppid) != 1) | |
449 | return -EIO; | |
450 | ||
451 | if ((long unsigned) (pid_t) ppid != ppid) | |
452 | return -ERANGE; | |
453 | ||
454 | *_ppid = (pid_t) ppid; | |
455 | ||
456 | return 0; | |
457 | } | |
458 | ||
459 | int wait_for_terminate(pid_t pid, siginfo_t *status) { | |
460 | siginfo_t dummy; | |
461 | ||
462 | assert(pid >= 1); | |
463 | ||
464 | if (!status) | |
465 | status = &dummy; | |
466 | ||
467 | for (;;) { | |
468 | zero(*status); | |
469 | ||
470 | if (waitid(P_PID, pid, status, WEXITED) < 0) { | |
471 | ||
472 | if (errno == EINTR) | |
473 | continue; | |
474 | ||
475 | return -errno; | |
476 | } | |
477 | ||
478 | return 0; | |
479 | } | |
480 | } | |
481 | ||
482 | /* | |
483 | * Return values: | |
484 | * < 0 : wait_for_terminate() failed to get the state of the | |
485 | * process, the process was terminated by a signal, or | |
486 | * failed for an unknown reason. | |
487 | * >=0 : The process terminated normally, and its exit code is | |
488 | * returned. | |
489 | * | |
490 | * That is, success is indicated by a return value of zero, and an | |
491 | * error is indicated by a non-zero value. | |
492 | * | |
493 | * A warning is emitted if the process terminates abnormally, | |
494 | * and also if it returns non-zero unless check_exit_code is true. | |
495 | */ | |
496 | int wait_for_terminate_and_warn(const char *name, pid_t pid, bool check_exit_code) { | |
497 | int r; | |
498 | siginfo_t status; | |
499 | ||
500 | assert(name); | |
501 | assert(pid > 1); | |
502 | ||
503 | r = wait_for_terminate(pid, &status); | |
504 | if (r < 0) | |
505 | return log_warning_errno(r, "Failed to wait for %s: %m", name); | |
506 | ||
507 | if (status.si_code == CLD_EXITED) { | |
508 | if (status.si_status != 0) | |
509 | log_full(check_exit_code ? LOG_WARNING : LOG_DEBUG, | |
510 | "%s failed with error code %i.", name, status.si_status); | |
511 | else | |
512 | log_debug("%s succeeded.", name); | |
513 | ||
514 | return status.si_status; | |
515 | } else if (status.si_code == CLD_KILLED || | |
516 | status.si_code == CLD_DUMPED) { | |
517 | ||
518 | log_warning("%s terminated by signal %s.", name, signal_to_string(status.si_status)); | |
519 | return -EPROTO; | |
520 | } | |
521 | ||
522 | log_warning("%s failed due to unknown reason.", name); | |
523 | return -EPROTO; | |
524 | } | |
525 | ||
4d0d3d41 LP |
526 | void sigkill_wait(pid_t *pid) { |
527 | if (!pid) | |
528 | return; | |
529 | if (*pid <= 1) | |
530 | return; | |
531 | ||
532 | if (kill(*pid, SIGKILL) > 0) | |
533 | (void) wait_for_terminate(*pid, NULL); | |
534 | } | |
535 | ||
0b452006 RC |
536 | int kill_and_sigcont(pid_t pid, int sig) { |
537 | int r; | |
538 | ||
539 | r = kill(pid, sig) < 0 ? -errno : 0; | |
540 | ||
541 | if (r >= 0) | |
542 | kill(pid, SIGCONT); | |
543 | ||
544 | return r; | |
545 | } | |
546 | ||
547 | int getenv_for_pid(pid_t pid, const char *field, char **_value) { | |
548 | _cleanup_fclose_ FILE *f = NULL; | |
549 | char *value = NULL; | |
550 | int r; | |
551 | bool done = false; | |
552 | size_t l; | |
553 | const char *path; | |
554 | ||
555 | assert(pid >= 0); | |
556 | assert(field); | |
557 | assert(_value); | |
558 | ||
559 | path = procfs_file_alloca(pid, "environ"); | |
560 | ||
561 | f = fopen(path, "re"); | |
a644184a LP |
562 | if (!f) { |
563 | if (errno == ENOENT) | |
564 | return -ESRCH; | |
0b452006 | 565 | return -errno; |
a644184a | 566 | } |
0b452006 RC |
567 | |
568 | l = strlen(field); | |
569 | r = 0; | |
570 | ||
571 | do { | |
572 | char line[LINE_MAX]; | |
573 | unsigned i; | |
574 | ||
575 | for (i = 0; i < sizeof(line)-1; i++) { | |
576 | int c; | |
577 | ||
578 | c = getc(f); | |
579 | if (_unlikely_(c == EOF)) { | |
580 | done = true; | |
581 | break; | |
582 | } else if (c == 0) | |
583 | break; | |
584 | ||
585 | line[i] = c; | |
586 | } | |
587 | line[i] = 0; | |
588 | ||
589 | if (memcmp(line, field, l) == 0 && line[l] == '=') { | |
590 | value = strdup(line + l + 1); | |
591 | if (!value) | |
592 | return -ENOMEM; | |
593 | ||
594 | r = 1; | |
595 | break; | |
596 | } | |
597 | ||
598 | } while (!done); | |
599 | ||
600 | *_value = value; | |
601 | return r; | |
602 | } | |
603 | ||
604 | bool pid_is_unwaited(pid_t pid) { | |
605 | /* Checks whether a PID is still valid at all, including a zombie */ | |
606 | ||
5fd9b2c5 | 607 | if (pid < 0) |
0b452006 RC |
608 | return false; |
609 | ||
5fd9b2c5 LP |
610 | if (pid <= 1) /* If we or PID 1 would be dead and have been waited for, this code would not be running */ |
611 | return true; | |
612 | ||
0b452006 RC |
613 | if (kill(pid, 0) >= 0) |
614 | return true; | |
615 | ||
616 | return errno != ESRCH; | |
617 | } | |
618 | ||
619 | bool pid_is_alive(pid_t pid) { | |
620 | int r; | |
621 | ||
622 | /* Checks whether a PID is still valid and not a zombie */ | |
623 | ||
5fd9b2c5 | 624 | if (pid < 0) |
0b452006 RC |
625 | return false; |
626 | ||
5fd9b2c5 LP |
627 | if (pid <= 1) /* If we or PID 1 would be a zombie, this code would not be running */ |
628 | return true; | |
629 | ||
0b452006 | 630 | r = get_process_state(pid); |
a644184a | 631 | if (r == -ESRCH || r == 'Z') |
0b452006 RC |
632 | return false; |
633 | ||
634 | return true; | |
635 | } | |
d4510856 LP |
636 | |
637 | bool is_main_thread(void) { | |
638 | static thread_local int cached = 0; | |
639 | ||
640 | if (_unlikely_(cached == 0)) | |
641 | cached = getpid() == gettid() ? 1 : -1; | |
642 | ||
643 | return cached > 0; | |
644 | } | |
7b3e062c LP |
645 | |
646 | noreturn void freeze(void) { | |
647 | ||
648 | /* Make sure nobody waits for us on a socket anymore */ | |
649 | close_all_fds(NULL, 0); | |
650 | ||
651 | sync(); | |
652 | ||
653 | for (;;) | |
654 | pause(); | |
655 | } | |
656 | ||
657 | bool oom_score_adjust_is_valid(int oa) { | |
658 | return oa >= OOM_SCORE_ADJ_MIN && oa <= OOM_SCORE_ADJ_MAX; | |
659 | } | |
660 | ||
661 | unsigned long personality_from_string(const char *p) { | |
662 | ||
663 | /* Parse a personality specifier. We introduce our own | |
664 | * identifiers that indicate specific ABIs, rather than just | |
665 | * hints regarding the register size, since we want to keep | |
666 | * things open for multiple locally supported ABIs for the | |
667 | * same register size. We try to reuse the ABI identifiers | |
668 | * used by libseccomp. */ | |
669 | ||
670 | #if defined(__x86_64__) | |
671 | ||
672 | if (streq(p, "x86")) | |
673 | return PER_LINUX32; | |
674 | ||
675 | if (streq(p, "x86-64")) | |
676 | return PER_LINUX; | |
677 | ||
678 | #elif defined(__i386__) | |
679 | ||
680 | if (streq(p, "x86")) | |
681 | return PER_LINUX; | |
682 | ||
683 | #elif defined(__s390x__) | |
684 | ||
685 | if (streq(p, "s390")) | |
686 | return PER_LINUX32; | |
687 | ||
688 | if (streq(p, "s390x")) | |
689 | return PER_LINUX; | |
690 | ||
691 | #elif defined(__s390__) | |
692 | ||
693 | if (streq(p, "s390")) | |
694 | return PER_LINUX; | |
695 | #endif | |
696 | ||
697 | return PERSONALITY_INVALID; | |
698 | } | |
699 | ||
700 | const char* personality_to_string(unsigned long p) { | |
701 | ||
702 | #if defined(__x86_64__) | |
703 | ||
704 | if (p == PER_LINUX32) | |
705 | return "x86"; | |
706 | ||
707 | if (p == PER_LINUX) | |
708 | return "x86-64"; | |
709 | ||
710 | #elif defined(__i386__) | |
711 | ||
712 | if (p == PER_LINUX) | |
713 | return "x86"; | |
714 | ||
715 | #elif defined(__s390x__) | |
716 | ||
717 | if (p == PER_LINUX) | |
718 | return "s390x"; | |
719 | ||
720 | if (p == PER_LINUX32) | |
721 | return "s390"; | |
722 | ||
723 | #elif defined(__s390__) | |
724 | ||
725 | if (p == PER_LINUX) | |
726 | return "s390"; | |
727 | ||
728 | #endif | |
729 | ||
730 | return NULL; | |
731 | } | |
732 | ||
733 | static const char *const ioprio_class_table[] = { | |
734 | [IOPRIO_CLASS_NONE] = "none", | |
735 | [IOPRIO_CLASS_RT] = "realtime", | |
736 | [IOPRIO_CLASS_BE] = "best-effort", | |
737 | [IOPRIO_CLASS_IDLE] = "idle" | |
738 | }; | |
739 | ||
740 | DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(ioprio_class, int, INT_MAX); | |
741 | ||
742 | static const char *const sigchld_code_table[] = { | |
743 | [CLD_EXITED] = "exited", | |
744 | [CLD_KILLED] = "killed", | |
745 | [CLD_DUMPED] = "dumped", | |
746 | [CLD_TRAPPED] = "trapped", | |
747 | [CLD_STOPPED] = "stopped", | |
748 | [CLD_CONTINUED] = "continued", | |
749 | }; | |
750 | ||
751 | DEFINE_STRING_TABLE_LOOKUP(sigchld_code, int); | |
752 | ||
753 | static const char* const sched_policy_table[] = { | |
754 | [SCHED_OTHER] = "other", | |
755 | [SCHED_BATCH] = "batch", | |
756 | [SCHED_IDLE] = "idle", | |
757 | [SCHED_FIFO] = "fifo", | |
758 | [SCHED_RR] = "rr" | |
759 | }; | |
760 | ||
761 | DEFINE_STRING_TABLE_LOOKUP_WITH_FALLBACK(sched_policy, int, INT_MAX); |