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d26e3629 KY |
1 | /* Linux-specific functions to retrieve OS data. |
2 | ||
ecd75fc8 | 3 | Copyright (C) 2009-2014 Free Software Foundation, Inc. |
d26e3629 KY |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #ifdef GDBSERVER | |
21 | #include "server.h" | |
22 | #else | |
23 | #include "defs.h" | |
24 | #endif | |
25 | ||
26 | #include "linux-osdata.h" | |
27 | ||
28 | #include <sys/types.h> | |
b245bdfc | 29 | #include <sys/sysinfo.h> |
d26e3629 KY |
30 | #include <ctype.h> |
31 | #include <stdlib.h> | |
32 | #include <string.h> | |
33 | #include <utmp.h> | |
34 | #include <time.h> | |
35 | #include <unistd.h> | |
36 | #include <pwd.h> | |
37 | #include <grp.h> | |
38 | #include <netdb.h> | |
39 | #include <netinet/in.h> | |
40 | #include <arpa/inet.h> | |
41 | ||
42 | #include "xml-utils.h" | |
43 | #include "buffer.h" | |
44 | #include "gdb_assert.h" | |
2978b111 | 45 | #include <dirent.h> |
53ce3c39 | 46 | #include <sys/stat.h> |
614c279d | 47 | #include "filestuff.h" |
d26e3629 | 48 | |
2978b111 TT |
49 | #define NAMELEN(dirent) strlen ((dirent)->d_name) |
50 | ||
85d4a676 SS |
51 | /* Define PID_T to be a fixed size that is at least as large as pid_t, |
52 | so that reading pid values embedded in /proc works | |
53 | consistently. */ | |
54 | ||
55 | typedef long long PID_T; | |
56 | ||
57 | /* Define TIME_T to be at least as large as time_t, so that reading | |
58 | time values embedded in /proc works consistently. */ | |
59 | ||
60 | typedef long long TIME_T; | |
61 | ||
62 | #define MAX_PID_T_STRLEN (sizeof ("-9223372036854775808") - 1) | |
63 | ||
64 | /* Returns the CPU core that thread PTID is currently running on. */ | |
65 | ||
2e794194 JK |
66 | /* Compute and return the processor core of a given thread. */ |
67 | ||
d26e3629 KY |
68 | int |
69 | linux_common_core_of_thread (ptid_t ptid) | |
70 | { | |
85d4a676 | 71 | char filename[sizeof ("/proc//task//stat") + 2 * MAX_PID_T_STRLEN]; |
d26e3629 KY |
72 | FILE *f; |
73 | char *content = NULL; | |
74 | char *p; | |
75 | char *ts = 0; | |
76 | int content_read = 0; | |
77 | int i; | |
78 | int core; | |
79 | ||
85d4a676 SS |
80 | sprintf (filename, "/proc/%lld/task/%lld/stat", |
81 | (PID_T) ptid_get_pid (ptid), (PID_T) ptid_get_lwp (ptid)); | |
614c279d | 82 | f = gdb_fopen_cloexec (filename, "r"); |
d26e3629 KY |
83 | if (!f) |
84 | return -1; | |
85 | ||
86 | for (;;) | |
87 | { | |
88 | int n; | |
89 | content = xrealloc (content, content_read + 1024); | |
90 | n = fread (content + content_read, 1, 1024, f); | |
91 | content_read += n; | |
92 | if (n < 1024) | |
93 | { | |
94 | content[content_read] = '\0'; | |
95 | break; | |
96 | } | |
97 | } | |
98 | ||
99 | p = strchr (content, '('); | |
100 | ||
101 | /* Skip ")". */ | |
102 | if (p != NULL) | |
103 | p = strchr (p, ')'); | |
104 | if (p != NULL) | |
105 | p++; | |
106 | ||
107 | /* If the first field after program name has index 0, then core number is | |
108 | the field with index 36. There's no constant for that anywhere. */ | |
109 | if (p != NULL) | |
110 | p = strtok_r (p, " ", &ts); | |
111 | for (i = 0; p != NULL && i != 36; ++i) | |
112 | p = strtok_r (NULL, " ", &ts); | |
113 | ||
114 | if (p == NULL || sscanf (p, "%d", &core) == 0) | |
115 | core = -1; | |
116 | ||
117 | xfree (content); | |
118 | fclose (f); | |
119 | ||
120 | return core; | |
121 | } | |
122 | ||
85d4a676 SS |
123 | /* Finds the command-line of process PID and copies it into COMMAND. |
124 | At most MAXLEN characters are copied. If the command-line cannot | |
125 | be found, PID is copied into command in text-form. */ | |
126 | ||
d26e3629 | 127 | static void |
85d4a676 | 128 | command_from_pid (char *command, int maxlen, PID_T pid) |
d26e3629 | 129 | { |
85d4a676 | 130 | char *stat_path = xstrprintf ("/proc/%lld/stat", pid); |
614c279d | 131 | FILE *fp = gdb_fopen_cloexec (stat_path, "r"); |
d26e3629 KY |
132 | |
133 | command[0] = '\0'; | |
134 | ||
135 | if (fp) | |
136 | { | |
137 | /* sizeof (cmd) should be greater or equal to TASK_COMM_LEN (in | |
138 | include/linux/sched.h in the Linux kernel sources) plus two | |
139 | (for the brackets). */ | |
f60db4f0 | 140 | char cmd[18]; |
85d4a676 | 141 | PID_T stat_pid; |
f60db4f0 | 142 | int items_read = fscanf (fp, "%lld %17s", &stat_pid, cmd); |
d26e3629 KY |
143 | |
144 | if (items_read == 2 && pid == stat_pid) | |
145 | { | |
146 | cmd[strlen (cmd) - 1] = '\0'; /* Remove trailing parenthesis. */ | |
147 | strncpy (command, cmd + 1, maxlen); /* Ignore leading parenthesis. */ | |
148 | } | |
149 | ||
150 | fclose (fp); | |
151 | } | |
152 | else | |
153 | { | |
154 | /* Return the PID if a /proc entry for the process cannot be found. */ | |
85d4a676 | 155 | snprintf (command, maxlen, "%lld", pid); |
d26e3629 KY |
156 | } |
157 | ||
158 | command[maxlen - 1] = '\0'; /* Ensure string is null-terminated. */ | |
159 | ||
160 | xfree (stat_path); | |
161 | } | |
162 | ||
85d4a676 SS |
163 | /* Returns the command-line of the process with the given PID. The |
164 | returned string needs to be freed using xfree after use. */ | |
d26e3629 KY |
165 | |
166 | static char * | |
85d4a676 | 167 | commandline_from_pid (PID_T pid) |
d26e3629 | 168 | { |
85d4a676 | 169 | char *pathname = xstrprintf ("/proc/%lld/cmdline", pid); |
d26e3629 | 170 | char *commandline = NULL; |
614c279d | 171 | FILE *f = gdb_fopen_cloexec (pathname, "r"); |
d26e3629 KY |
172 | |
173 | if (f) | |
174 | { | |
175 | size_t len = 0; | |
176 | ||
177 | while (!feof (f)) | |
178 | { | |
179 | char buf[1024]; | |
180 | size_t read_bytes = fread (buf, 1, sizeof (buf), f); | |
181 | ||
182 | if (read_bytes) | |
183 | { | |
184 | commandline = (char *) xrealloc (commandline, len + read_bytes + 1); | |
185 | memcpy (commandline + len, buf, read_bytes); | |
186 | len += read_bytes; | |
187 | } | |
188 | } | |
189 | ||
190 | fclose (f); | |
191 | ||
192 | if (commandline) | |
193 | { | |
194 | size_t i; | |
195 | ||
196 | /* Replace null characters with spaces. */ | |
197 | for (i = 0; i < len; ++i) | |
198 | if (commandline[i] == '\0') | |
199 | commandline[i] = ' '; | |
200 | ||
201 | commandline[len] = '\0'; | |
202 | } | |
203 | else | |
204 | { | |
85d4a676 SS |
205 | /* Return the command in square brackets if the command-line |
206 | is empty. */ | |
d26e3629 KY |
207 | commandline = (char *) xmalloc (32); |
208 | commandline[0] = '['; | |
209 | command_from_pid (commandline + 1, 31, pid); | |
210 | ||
211 | len = strlen (commandline); | |
212 | if (len < 31) | |
213 | strcat (commandline, "]"); | |
214 | } | |
215 | } | |
216 | ||
217 | xfree (pathname); | |
218 | ||
219 | return commandline; | |
220 | } | |
221 | ||
85d4a676 SS |
222 | /* Finds the user name for the user UID and copies it into USER. At |
223 | most MAXLEN characters are copied. */ | |
224 | ||
d26e3629 KY |
225 | static void |
226 | user_from_uid (char *user, int maxlen, uid_t uid) | |
227 | { | |
228 | struct passwd *pwentry = getpwuid (uid); | |
229 | ||
230 | if (pwentry) | |
231 | { | |
232 | strncpy (user, pwentry->pw_name, maxlen); | |
85d4a676 SS |
233 | /* Ensure that the user name is null-terminated. */ |
234 | user[maxlen - 1] = '\0'; | |
d26e3629 KY |
235 | } |
236 | else | |
237 | user[0] = '\0'; | |
238 | } | |
239 | ||
85d4a676 SS |
240 | /* Finds the owner of process PID and returns the user id in OWNER. |
241 | Returns 0 if the owner was found, -1 otherwise. */ | |
242 | ||
d26e3629 | 243 | static int |
85d4a676 | 244 | get_process_owner (uid_t *owner, PID_T pid) |
d26e3629 KY |
245 | { |
246 | struct stat statbuf; | |
85d4a676 | 247 | char procentry[sizeof ("/proc/") + MAX_PID_T_STRLEN]; |
d26e3629 | 248 | |
85d4a676 | 249 | sprintf (procentry, "/proc/%lld", pid); |
d26e3629 KY |
250 | |
251 | if (stat (procentry, &statbuf) == 0 && S_ISDIR (statbuf.st_mode)) | |
252 | { | |
253 | *owner = statbuf.st_uid; | |
254 | return 0; | |
255 | } | |
256 | else | |
257 | return -1; | |
258 | } | |
259 | ||
85d4a676 | 260 | /* Find the CPU cores used by process PID and return them in CORES. |
b245bdfc | 261 | CORES points to an array of at least sysconf(_SC_NPROCESSOR_ONLN) |
85d4a676 | 262 | elements. */ |
d26e3629 KY |
263 | |
264 | static int | |
85d4a676 | 265 | get_cores_used_by_process (PID_T pid, int *cores) |
d26e3629 | 266 | { |
85d4a676 | 267 | char taskdir[sizeof ("/proc/") + MAX_PID_T_STRLEN + sizeof ("/task") - 1]; |
d26e3629 KY |
268 | DIR *dir; |
269 | struct dirent *dp; | |
270 | int task_count = 0; | |
271 | ||
85d4a676 | 272 | sprintf (taskdir, "/proc/%lld/task", pid); |
d26e3629 | 273 | dir = opendir (taskdir); |
e5798bef | 274 | if (dir) |
d26e3629 | 275 | { |
e5798bef PA |
276 | while ((dp = readdir (dir)) != NULL) |
277 | { | |
85d4a676 | 278 | PID_T tid; |
e5798bef | 279 | int core; |
d26e3629 | 280 | |
e5798bef | 281 | if (!isdigit (dp->d_name[0]) |
85d4a676 | 282 | || NAMELEN (dp) > MAX_PID_T_STRLEN) |
e5798bef | 283 | continue; |
d26e3629 | 284 | |
85d4a676 SS |
285 | sscanf (dp->d_name, "%lld", &tid); |
286 | core = linux_common_core_of_thread (ptid_build ((pid_t) pid, | |
287 | (pid_t) tid, 0)); | |
d26e3629 | 288 | |
e5798bef PA |
289 | if (core >= 0) |
290 | { | |
291 | ++cores[core]; | |
292 | ++task_count; | |
293 | } | |
d26e3629 | 294 | } |
d26e3629 | 295 | |
e5798bef PA |
296 | closedir (dir); |
297 | } | |
d26e3629 KY |
298 | |
299 | return task_count; | |
300 | } | |
301 | ||
302 | static LONGEST | |
303 | linux_xfer_osdata_processes (gdb_byte *readbuf, | |
dea80a27 | 304 | ULONGEST offset, ULONGEST len) |
d26e3629 KY |
305 | { |
306 | /* We make the process list snapshot when the object starts to be read. */ | |
307 | static const char *buf; | |
308 | static LONGEST len_avail = -1; | |
309 | static struct buffer buffer; | |
310 | ||
311 | if (offset == 0) | |
312 | { | |
313 | DIR *dirp; | |
314 | ||
315 | if (len_avail != -1 && len_avail != 0) | |
316 | buffer_free (&buffer); | |
317 | len_avail = 0; | |
318 | buf = NULL; | |
319 | buffer_init (&buffer); | |
320 | buffer_grow_str (&buffer, "<osdata type=\"processes\">\n"); | |
321 | ||
322 | dirp = opendir ("/proc"); | |
323 | if (dirp) | |
324 | { | |
b245bdfc | 325 | const int num_cores = sysconf (_SC_NPROCESSORS_ONLN); |
d26e3629 KY |
326 | struct dirent *dp; |
327 | ||
328 | while ((dp = readdir (dirp)) != NULL) | |
329 | { | |
85d4a676 | 330 | PID_T pid; |
d26e3629 KY |
331 | uid_t owner; |
332 | char user[UT_NAMESIZE]; | |
333 | char *command_line; | |
334 | int *cores; | |
335 | int task_count; | |
336 | char *cores_str; | |
337 | int i; | |
338 | ||
339 | if (!isdigit (dp->d_name[0]) | |
85d4a676 | 340 | || NAMELEN (dp) > MAX_PID_T_STRLEN) |
d26e3629 KY |
341 | continue; |
342 | ||
85d4a676 | 343 | sscanf (dp->d_name, "%lld", &pid); |
d26e3629 KY |
344 | command_line = commandline_from_pid (pid); |
345 | ||
346 | if (get_process_owner (&owner, pid) == 0) | |
347 | user_from_uid (user, sizeof (user), owner); | |
348 | else | |
349 | strcpy (user, "?"); | |
350 | ||
351 | /* Find CPU cores used by the process. */ | |
352 | cores = (int *) xcalloc (num_cores, sizeof (int)); | |
353 | task_count = get_cores_used_by_process (pid, cores); | |
354 | cores_str = (char *) xcalloc (task_count, sizeof ("4294967295") + 1); | |
355 | ||
356 | for (i = 0; i < num_cores && task_count > 0; ++i) | |
357 | if (cores[i]) | |
358 | { | |
85d4a676 | 359 | char core_str[sizeof ("4294967295")]; |
d26e3629 KY |
360 | |
361 | sprintf (core_str, "%d", i); | |
362 | strcat (cores_str, core_str); | |
363 | ||
364 | task_count -= cores[i]; | |
365 | if (task_count > 0) | |
366 | strcat (cores_str, ","); | |
367 | } | |
368 | ||
369 | xfree (cores); | |
370 | ||
371 | buffer_xml_printf ( | |
372 | &buffer, | |
373 | "<item>" | |
85d4a676 | 374 | "<column name=\"pid\">%lld</column>" |
d26e3629 KY |
375 | "<column name=\"user\">%s</column>" |
376 | "<column name=\"command\">%s</column>" | |
377 | "<column name=\"cores\">%s</column>" | |
378 | "</item>", | |
379 | pid, | |
380 | user, | |
381 | command_line ? command_line : "", | |
382 | cores_str); | |
383 | ||
384 | xfree (command_line); | |
385 | xfree (cores_str); | |
386 | } | |
387 | ||
388 | closedir (dirp); | |
389 | } | |
390 | ||
391 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
392 | buf = buffer_finish (&buffer); | |
393 | len_avail = strlen (buf); | |
394 | } | |
395 | ||
396 | if (offset >= len_avail) | |
397 | { | |
398 | /* Done. Get rid of the buffer. */ | |
399 | buffer_free (&buffer); | |
400 | buf = NULL; | |
401 | len_avail = 0; | |
402 | return 0; | |
403 | } | |
404 | ||
405 | if (len > len_avail - offset) | |
406 | len = len_avail - offset; | |
407 | memcpy (readbuf, buf + offset, len); | |
408 | ||
409 | return len; | |
410 | } | |
411 | ||
85d4a676 SS |
412 | /* Auxiliary function used by qsort to sort processes by process |
413 | group. Compares two processes with ids PROCESS1 and PROCESS2. | |
414 | PROCESS1 comes before PROCESS2 if it has a lower process group id. | |
415 | If they belong to the same process group, PROCESS1 comes before | |
416 | PROCESS2 if it has a lower process id or is the process group | |
417 | leader. */ | |
418 | ||
419 | static int | |
420 | compare_processes (const void *process1, const void *process2) | |
421 | { | |
422 | PID_T pid1 = *((PID_T *) process1); | |
423 | PID_T pid2 = *((PID_T *) process2); | |
424 | PID_T pgid1 = *((PID_T *) process1 + 1); | |
425 | PID_T pgid2 = *((PID_T *) process2 + 1); | |
426 | ||
427 | /* Sort by PGID. */ | |
428 | if (pgid1 < pgid2) | |
429 | return -1; | |
430 | else if (pgid1 > pgid2) | |
431 | return 1; | |
432 | else | |
433 | { | |
434 | /* Process group leaders always come first, else sort by PID. */ | |
435 | if (pid1 == pgid1) | |
436 | return -1; | |
437 | else if (pid2 == pgid2) | |
438 | return 1; | |
439 | else if (pid1 < pid2) | |
440 | return -1; | |
441 | else if (pid1 > pid2) | |
442 | return 1; | |
443 | else | |
444 | return 0; | |
445 | } | |
446 | } | |
447 | ||
448 | /* Collect all process groups from /proc. */ | |
449 | ||
450 | static LONGEST | |
451 | linux_xfer_osdata_processgroups (gdb_byte *readbuf, | |
dea80a27 | 452 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
453 | { |
454 | /* We make the process list snapshot when the object starts to be read. */ | |
455 | static const char *buf; | |
456 | static LONGEST len_avail = -1; | |
457 | static struct buffer buffer; | |
458 | ||
459 | if (offset == 0) | |
460 | { | |
461 | DIR *dirp; | |
462 | ||
463 | if (len_avail != -1 && len_avail != 0) | |
464 | buffer_free (&buffer); | |
465 | len_avail = 0; | |
466 | buf = NULL; | |
467 | buffer_init (&buffer); | |
468 | buffer_grow_str (&buffer, "<osdata type=\"process groups\">\n"); | |
469 | ||
470 | dirp = opendir ("/proc"); | |
471 | if (dirp) | |
472 | { | |
473 | struct dirent *dp; | |
474 | const size_t list_block_size = 512; | |
475 | PID_T *process_list = (PID_T *) xmalloc (list_block_size * 2 * sizeof (PID_T)); | |
476 | size_t process_count = 0; | |
477 | size_t i; | |
478 | ||
479 | /* Build list consisting of PIDs followed by their | |
480 | associated PGID. */ | |
481 | while ((dp = readdir (dirp)) != NULL) | |
482 | { | |
483 | PID_T pid, pgid; | |
484 | ||
485 | if (!isdigit (dp->d_name[0]) | |
486 | || NAMELEN (dp) > MAX_PID_T_STRLEN) | |
487 | continue; | |
488 | ||
489 | sscanf (dp->d_name, "%lld", &pid); | |
490 | pgid = getpgid (pid); | |
491 | ||
492 | if (pgid > 0) | |
493 | { | |
494 | process_list[2 * process_count] = pid; | |
495 | process_list[2 * process_count + 1] = pgid; | |
496 | ++process_count; | |
497 | ||
498 | /* Increase the size of the list if necessary. */ | |
499 | if (process_count % list_block_size == 0) | |
500 | process_list = (PID_T *) xrealloc ( | |
501 | process_list, | |
502 | (process_count + list_block_size) | |
503 | * 2 * sizeof (PID_T)); | |
504 | } | |
505 | } | |
506 | ||
507 | closedir (dirp); | |
508 | ||
509 | /* Sort the process list. */ | |
510 | qsort (process_list, process_count, 2 * sizeof (PID_T), | |
511 | compare_processes); | |
512 | ||
513 | for (i = 0; i < process_count; ++i) | |
514 | { | |
515 | PID_T pid = process_list[2 * i]; | |
516 | PID_T pgid = process_list[2 * i + 1]; | |
517 | char leader_command[32]; | |
518 | char *command_line; | |
519 | ||
520 | command_from_pid (leader_command, sizeof (leader_command), pgid); | |
521 | command_line = commandline_from_pid (pid); | |
522 | ||
523 | buffer_xml_printf ( | |
524 | &buffer, | |
525 | "<item>" | |
526 | "<column name=\"pgid\">%lld</column>" | |
527 | "<column name=\"leader command\">%s</column>" | |
528 | "<column name=\"pid\">%lld</column>" | |
529 | "<column name=\"command line\">%s</column>" | |
530 | "</item>", | |
531 | pgid, | |
532 | leader_command, | |
533 | pid, | |
534 | command_line ? command_line : ""); | |
535 | ||
536 | xfree (command_line); | |
537 | } | |
538 | ||
539 | xfree (process_list); | |
540 | } | |
541 | ||
542 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
543 | buf = buffer_finish (&buffer); | |
544 | len_avail = strlen (buf); | |
545 | } | |
546 | ||
547 | if (offset >= len_avail) | |
548 | { | |
549 | /* Done. Get rid of the buffer. */ | |
550 | buffer_free (&buffer); | |
551 | buf = NULL; | |
552 | len_avail = 0; | |
553 | return 0; | |
554 | } | |
555 | ||
556 | if (len > len_avail - offset) | |
557 | len = len_avail - offset; | |
558 | memcpy (readbuf, buf + offset, len); | |
559 | ||
560 | return len; | |
561 | } | |
562 | ||
563 | /* Collect all the threads in /proc by iterating through processes and | |
564 | then tasks within each process. */ | |
565 | ||
d26e3629 KY |
566 | static LONGEST |
567 | linux_xfer_osdata_threads (gdb_byte *readbuf, | |
dea80a27 | 568 | ULONGEST offset, ULONGEST len) |
d26e3629 KY |
569 | { |
570 | /* We make the process list snapshot when the object starts to be read. */ | |
571 | static const char *buf; | |
572 | static LONGEST len_avail = -1; | |
573 | static struct buffer buffer; | |
574 | ||
575 | if (offset == 0) | |
576 | { | |
577 | DIR *dirp; | |
578 | ||
579 | if (len_avail != -1 && len_avail != 0) | |
580 | buffer_free (&buffer); | |
581 | len_avail = 0; | |
582 | buf = NULL; | |
583 | buffer_init (&buffer); | |
584 | buffer_grow_str (&buffer, "<osdata type=\"threads\">\n"); | |
585 | ||
586 | dirp = opendir ("/proc"); | |
587 | if (dirp) | |
588 | { | |
589 | struct dirent *dp; | |
590 | ||
591 | while ((dp = readdir (dirp)) != NULL) | |
592 | { | |
593 | struct stat statbuf; | |
594 | char procentry[sizeof ("/proc/4294967295")]; | |
595 | ||
596 | if (!isdigit (dp->d_name[0]) | |
597 | || NAMELEN (dp) > sizeof ("4294967295") - 1) | |
598 | continue; | |
599 | ||
600 | sprintf (procentry, "/proc/%s", dp->d_name); | |
601 | if (stat (procentry, &statbuf) == 0 | |
602 | && S_ISDIR (statbuf.st_mode)) | |
603 | { | |
604 | DIR *dirp2; | |
605 | char *pathname; | |
85d4a676 | 606 | PID_T pid; |
d26e3629 KY |
607 | char command[32]; |
608 | ||
609 | pathname = xstrprintf ("/proc/%s/task", dp->d_name); | |
610 | ||
611 | pid = atoi (dp->d_name); | |
612 | command_from_pid (command, sizeof (command), pid); | |
613 | ||
614 | dirp2 = opendir (pathname); | |
615 | ||
616 | if (dirp2) | |
617 | { | |
618 | struct dirent *dp2; | |
619 | ||
620 | while ((dp2 = readdir (dirp2)) != NULL) | |
621 | { | |
85d4a676 | 622 | PID_T tid; |
d26e3629 KY |
623 | int core; |
624 | ||
625 | if (!isdigit (dp2->d_name[0]) | |
626 | || NAMELEN (dp2) > sizeof ("4294967295") - 1) | |
627 | continue; | |
628 | ||
629 | tid = atoi (dp2->d_name); | |
630 | core = linux_common_core_of_thread (ptid_build (pid, tid, 0)); | |
631 | ||
632 | buffer_xml_printf ( | |
633 | &buffer, | |
634 | "<item>" | |
85d4a676 | 635 | "<column name=\"pid\">%lld</column>" |
d26e3629 | 636 | "<column name=\"command\">%s</column>" |
85d4a676 | 637 | "<column name=\"tid\">%lld</column>" |
d26e3629 KY |
638 | "<column name=\"core\">%d</column>" |
639 | "</item>", | |
640 | pid, | |
641 | command, | |
642 | tid, | |
643 | core); | |
644 | } | |
645 | ||
646 | closedir (dirp2); | |
647 | } | |
648 | ||
649 | xfree (pathname); | |
650 | } | |
651 | } | |
652 | ||
653 | closedir (dirp); | |
654 | } | |
655 | ||
656 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
657 | buf = buffer_finish (&buffer); | |
658 | len_avail = strlen (buf); | |
659 | } | |
660 | ||
661 | if (offset >= len_avail) | |
662 | { | |
663 | /* Done. Get rid of the buffer. */ | |
664 | buffer_free (&buffer); | |
665 | buf = NULL; | |
666 | len_avail = 0; | |
667 | return 0; | |
668 | } | |
669 | ||
670 | if (len > len_avail - offset) | |
671 | len = len_avail - offset; | |
672 | memcpy (readbuf, buf + offset, len); | |
673 | ||
674 | return len; | |
675 | } | |
676 | ||
85d4a676 SS |
677 | /* Collect all the open file descriptors found in /proc and put the details |
678 | found about them into READBUF. */ | |
679 | ||
680 | static LONGEST | |
681 | linux_xfer_osdata_fds (gdb_byte *readbuf, | |
dea80a27 | 682 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
683 | { |
684 | /* We make the process list snapshot when the object starts to be read. */ | |
685 | static const char *buf; | |
686 | static LONGEST len_avail = -1; | |
687 | static struct buffer buffer; | |
688 | ||
689 | if (offset == 0) | |
690 | { | |
691 | DIR *dirp; | |
692 | ||
693 | if (len_avail != -1 && len_avail != 0) | |
694 | buffer_free (&buffer); | |
695 | len_avail = 0; | |
696 | buf = NULL; | |
697 | buffer_init (&buffer); | |
698 | buffer_grow_str (&buffer, "<osdata type=\"files\">\n"); | |
699 | ||
700 | dirp = opendir ("/proc"); | |
701 | if (dirp) | |
702 | { | |
703 | struct dirent *dp; | |
704 | ||
705 | while ((dp = readdir (dirp)) != NULL) | |
706 | { | |
707 | struct stat statbuf; | |
708 | char procentry[sizeof ("/proc/4294967295")]; | |
709 | ||
710 | if (!isdigit (dp->d_name[0]) | |
711 | || NAMELEN (dp) > sizeof ("4294967295") - 1) | |
712 | continue; | |
713 | ||
714 | sprintf (procentry, "/proc/%s", dp->d_name); | |
715 | if (stat (procentry, &statbuf) == 0 | |
716 | && S_ISDIR (statbuf.st_mode)) | |
717 | { | |
718 | char *pathname; | |
719 | DIR *dirp2; | |
720 | PID_T pid; | |
721 | char command[32]; | |
722 | ||
723 | pid = atoi (dp->d_name); | |
724 | command_from_pid (command, sizeof (command), pid); | |
725 | ||
726 | pathname = xstrprintf ("/proc/%s/fd", dp->d_name); | |
727 | dirp2 = opendir (pathname); | |
728 | ||
729 | if (dirp2) | |
730 | { | |
731 | struct dirent *dp2; | |
732 | ||
733 | while ((dp2 = readdir (dirp2)) != NULL) | |
734 | { | |
735 | char *fdname; | |
736 | char buf[1000]; | |
737 | ssize_t rslt; | |
738 | ||
739 | if (!isdigit (dp2->d_name[0])) | |
740 | continue; | |
741 | ||
742 | fdname = xstrprintf ("%s/%s", pathname, dp2->d_name); | |
0270a750 | 743 | rslt = readlink (fdname, buf, sizeof (buf) - 1); |
85d4a676 SS |
744 | if (rslt >= 0) |
745 | buf[rslt] = '\0'; | |
746 | ||
747 | buffer_xml_printf ( | |
748 | &buffer, | |
749 | "<item>" | |
750 | "<column name=\"pid\">%s</column>" | |
751 | "<column name=\"command\">%s</column>" | |
752 | "<column name=\"file descriptor\">%s</column>" | |
753 | "<column name=\"name\">%s</column>" | |
754 | "</item>", | |
755 | dp->d_name, | |
756 | command, | |
757 | dp2->d_name, | |
758 | (rslt >= 0 ? buf : dp2->d_name)); | |
759 | } | |
760 | ||
761 | closedir (dirp2); | |
762 | } | |
763 | ||
764 | xfree (pathname); | |
765 | } | |
766 | } | |
767 | ||
768 | closedir (dirp); | |
769 | } | |
770 | ||
771 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
772 | buf = buffer_finish (&buffer); | |
773 | len_avail = strlen (buf); | |
774 | } | |
775 | ||
776 | if (offset >= len_avail) | |
777 | { | |
778 | /* Done. Get rid of the buffer. */ | |
779 | buffer_free (&buffer); | |
780 | buf = NULL; | |
781 | len_avail = 0; | |
782 | return 0; | |
783 | } | |
784 | ||
785 | if (len > len_avail - offset) | |
786 | len = len_avail - offset; | |
787 | memcpy (readbuf, buf + offset, len); | |
788 | ||
789 | return len; | |
790 | } | |
791 | ||
792 | /* Returns the socket state STATE in textual form. */ | |
793 | ||
794 | static const char * | |
795 | format_socket_state (unsigned char state) | |
796 | { | |
797 | /* Copied from include/net/tcp_states.h in the Linux kernel sources. */ | |
798 | enum { | |
799 | TCP_ESTABLISHED = 1, | |
800 | TCP_SYN_SENT, | |
801 | TCP_SYN_RECV, | |
802 | TCP_FIN_WAIT1, | |
803 | TCP_FIN_WAIT2, | |
804 | TCP_TIME_WAIT, | |
805 | TCP_CLOSE, | |
806 | TCP_CLOSE_WAIT, | |
807 | TCP_LAST_ACK, | |
808 | TCP_LISTEN, | |
809 | TCP_CLOSING | |
810 | }; | |
811 | ||
812 | switch (state) | |
813 | { | |
814 | case TCP_ESTABLISHED: | |
815 | return "ESTABLISHED"; | |
816 | case TCP_SYN_SENT: | |
817 | return "SYN_SENT"; | |
818 | case TCP_SYN_RECV: | |
819 | return "SYN_RECV"; | |
820 | case TCP_FIN_WAIT1: | |
821 | return "FIN_WAIT1"; | |
822 | case TCP_FIN_WAIT2: | |
823 | return "FIN_WAIT2"; | |
824 | case TCP_TIME_WAIT: | |
825 | return "TIME_WAIT"; | |
826 | case TCP_CLOSE: | |
827 | return "CLOSE"; | |
828 | case TCP_CLOSE_WAIT: | |
829 | return "CLOSE_WAIT"; | |
830 | case TCP_LAST_ACK: | |
831 | return "LAST_ACK"; | |
832 | case TCP_LISTEN: | |
833 | return "LISTEN"; | |
834 | case TCP_CLOSING: | |
835 | return "CLOSING"; | |
836 | default: | |
837 | return "(unknown)"; | |
838 | } | |
839 | } | |
840 | ||
841 | union socket_addr | |
842 | { | |
843 | struct sockaddr sa; | |
844 | struct sockaddr_in sin; | |
845 | struct sockaddr_in6 sin6; | |
846 | }; | |
847 | ||
848 | /* Auxiliary function used by linux_xfer_osdata_isocket. Formats | |
849 | information for all open internet sockets of type FAMILY on the | |
850 | system into BUFFER. If TCP is set, only TCP sockets are processed, | |
851 | otherwise only UDP sockets are processed. */ | |
852 | ||
853 | static void | |
854 | print_sockets (unsigned short family, int tcp, struct buffer *buffer) | |
855 | { | |
856 | const char *proc_file; | |
857 | FILE *fp; | |
858 | ||
859 | if (family == AF_INET) | |
860 | proc_file = tcp ? "/proc/net/tcp" : "/proc/net/udp"; | |
861 | else if (family == AF_INET6) | |
862 | proc_file = tcp ? "/proc/net/tcp6" : "/proc/net/udp6"; | |
863 | else | |
864 | return; | |
865 | ||
614c279d | 866 | fp = gdb_fopen_cloexec (proc_file, "r"); |
85d4a676 SS |
867 | if (fp) |
868 | { | |
869 | char buf[8192]; | |
870 | ||
871 | do | |
872 | { | |
873 | if (fgets (buf, sizeof (buf), fp)) | |
874 | { | |
875 | uid_t uid; | |
85d4a676 | 876 | unsigned int local_port, remote_port, state; |
85d4a676 | 877 | char local_address[NI_MAXHOST], remote_address[NI_MAXHOST]; |
85d4a676 SS |
878 | int result; |
879 | ||
f60db4f0 GB |
880 | #if NI_MAXHOST <= 32 |
881 | #error "local_address and remote_address buffers too small" | |
882 | #endif | |
883 | ||
85d4a676 | 884 | result = sscanf (buf, |
f60db4f0 | 885 | "%*d: %32[0-9A-F]:%X %32[0-9A-F]:%X %X %*X:%*X %*X:%*X %*X %d %*d %*u %*s\n", |
85d4a676 SS |
886 | local_address, &local_port, |
887 | remote_address, &remote_port, | |
888 | &state, | |
f60db4f0 | 889 | &uid); |
85d4a676 | 890 | |
f60db4f0 | 891 | if (result == 6) |
85d4a676 SS |
892 | { |
893 | union socket_addr locaddr, remaddr; | |
894 | size_t addr_size; | |
895 | char user[UT_NAMESIZE]; | |
896 | char local_service[NI_MAXSERV], remote_service[NI_MAXSERV]; | |
897 | ||
898 | if (family == AF_INET) | |
899 | { | |
900 | sscanf (local_address, "%X", | |
901 | &locaddr.sin.sin_addr.s_addr); | |
902 | sscanf (remote_address, "%X", | |
903 | &remaddr.sin.sin_addr.s_addr); | |
904 | ||
905 | locaddr.sin.sin_port = htons (local_port); | |
906 | remaddr.sin.sin_port = htons (remote_port); | |
907 | ||
908 | addr_size = sizeof (struct sockaddr_in); | |
909 | } | |
910 | else | |
911 | { | |
912 | sscanf (local_address, "%8X%8X%8X%8X", | |
913 | locaddr.sin6.sin6_addr.s6_addr32, | |
914 | locaddr.sin6.sin6_addr.s6_addr32 + 1, | |
915 | locaddr.sin6.sin6_addr.s6_addr32 + 2, | |
916 | locaddr.sin6.sin6_addr.s6_addr32 + 3); | |
917 | sscanf (remote_address, "%8X%8X%8X%8X", | |
918 | remaddr.sin6.sin6_addr.s6_addr32, | |
919 | remaddr.sin6.sin6_addr.s6_addr32 + 1, | |
920 | remaddr.sin6.sin6_addr.s6_addr32 + 2, | |
921 | remaddr.sin6.sin6_addr.s6_addr32 + 3); | |
922 | ||
923 | locaddr.sin6.sin6_port = htons (local_port); | |
924 | remaddr.sin6.sin6_port = htons (remote_port); | |
925 | ||
926 | locaddr.sin6.sin6_flowinfo = 0; | |
927 | remaddr.sin6.sin6_flowinfo = 0; | |
928 | locaddr.sin6.sin6_scope_id = 0; | |
929 | remaddr.sin6.sin6_scope_id = 0; | |
930 | ||
931 | addr_size = sizeof (struct sockaddr_in6); | |
932 | } | |
933 | ||
934 | locaddr.sa.sa_family = remaddr.sa.sa_family = family; | |
935 | ||
936 | result = getnameinfo (&locaddr.sa, addr_size, | |
937 | local_address, sizeof (local_address), | |
938 | local_service, sizeof (local_service), | |
939 | NI_NUMERICHOST | NI_NUMERICSERV | |
940 | | (tcp ? 0 : NI_DGRAM)); | |
941 | if (result) | |
942 | continue; | |
943 | ||
944 | result = getnameinfo (&remaddr.sa, addr_size, | |
945 | remote_address, | |
946 | sizeof (remote_address), | |
947 | remote_service, | |
948 | sizeof (remote_service), | |
949 | NI_NUMERICHOST | NI_NUMERICSERV | |
950 | | (tcp ? 0 : NI_DGRAM)); | |
951 | if (result) | |
952 | continue; | |
953 | ||
954 | user_from_uid (user, sizeof (user), uid); | |
955 | ||
956 | buffer_xml_printf ( | |
957 | buffer, | |
958 | "<item>" | |
959 | "<column name=\"local address\">%s</column>" | |
960 | "<column name=\"local port\">%s</column>" | |
961 | "<column name=\"remote address\">%s</column>" | |
962 | "<column name=\"remote port\">%s</column>" | |
963 | "<column name=\"state\">%s</column>" | |
964 | "<column name=\"user\">%s</column>" | |
965 | "<column name=\"family\">%s</column>" | |
966 | "<column name=\"protocol\">%s</column>" | |
967 | "</item>", | |
968 | local_address, | |
969 | local_service, | |
970 | remote_address, | |
971 | remote_service, | |
972 | format_socket_state (state), | |
973 | user, | |
974 | (family == AF_INET) ? "INET" : "INET6", | |
975 | tcp ? "STREAM" : "DGRAM"); | |
976 | } | |
977 | } | |
978 | } | |
979 | while (!feof (fp)); | |
980 | ||
981 | fclose (fp); | |
982 | } | |
983 | } | |
984 | ||
985 | /* Collect data about internet sockets and write it into READBUF. */ | |
986 | ||
987 | static LONGEST | |
988 | linux_xfer_osdata_isockets (gdb_byte *readbuf, | |
dea80a27 | 989 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
990 | { |
991 | static const char *buf; | |
992 | static LONGEST len_avail = -1; | |
993 | static struct buffer buffer; | |
994 | ||
995 | if (offset == 0) | |
996 | { | |
997 | if (len_avail != -1 && len_avail != 0) | |
998 | buffer_free (&buffer); | |
999 | len_avail = 0; | |
1000 | buf = NULL; | |
1001 | buffer_init (&buffer); | |
1002 | buffer_grow_str (&buffer, "<osdata type=\"I sockets\">\n"); | |
1003 | ||
1004 | print_sockets (AF_INET, 1, &buffer); | |
1005 | print_sockets (AF_INET, 0, &buffer); | |
1006 | print_sockets (AF_INET6, 1, &buffer); | |
1007 | print_sockets (AF_INET6, 0, &buffer); | |
1008 | ||
1009 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1010 | buf = buffer_finish (&buffer); | |
1011 | len_avail = strlen (buf); | |
1012 | } | |
1013 | ||
1014 | if (offset >= len_avail) | |
1015 | { | |
1016 | /* Done. Get rid of the buffer. */ | |
1017 | buffer_free (&buffer); | |
1018 | buf = NULL; | |
1019 | len_avail = 0; | |
1020 | return 0; | |
1021 | } | |
1022 | ||
1023 | if (len > len_avail - offset) | |
1024 | len = len_avail - offset; | |
1025 | memcpy (readbuf, buf + offset, len); | |
1026 | ||
1027 | return len; | |
1028 | } | |
1029 | ||
1030 | /* Converts the time SECONDS into textual form and copies it into a | |
1031 | buffer TIME, with at most MAXLEN characters copied. */ | |
1032 | ||
1033 | static void | |
1034 | time_from_time_t (char *time, int maxlen, TIME_T seconds) | |
1035 | { | |
1036 | if (!seconds) | |
1037 | time[0] = '\0'; | |
1038 | else | |
1039 | { | |
1040 | time_t t = (time_t) seconds; | |
1041 | ||
1042 | strncpy (time, ctime (&t), maxlen); | |
1043 | time[maxlen - 1] = '\0'; | |
1044 | } | |
1045 | } | |
1046 | ||
1047 | /* Finds the group name for the group GID and copies it into GROUP. | |
1048 | At most MAXLEN characters are copied. */ | |
1049 | ||
1050 | static void | |
1051 | group_from_gid (char *group, int maxlen, gid_t gid) | |
1052 | { | |
1053 | struct group *grentry = getgrgid (gid); | |
1054 | ||
1055 | if (grentry) | |
1056 | { | |
1057 | strncpy (group, grentry->gr_name, maxlen); | |
1058 | /* Ensure that the group name is null-terminated. */ | |
1059 | group[maxlen - 1] = '\0'; | |
1060 | } | |
1061 | else | |
1062 | group[0] = '\0'; | |
1063 | } | |
1064 | ||
1065 | /* Collect data about shared memory recorded in /proc and write it | |
1066 | into READBUF. */ | |
1067 | ||
1068 | static LONGEST | |
1069 | linux_xfer_osdata_shm (gdb_byte *readbuf, | |
dea80a27 | 1070 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1071 | { |
1072 | static const char *buf; | |
1073 | static LONGEST len_avail = -1; | |
1074 | static struct buffer buffer; | |
1075 | ||
1076 | if (offset == 0) | |
1077 | { | |
1078 | FILE *fp; | |
1079 | ||
1080 | if (len_avail != -1 && len_avail != 0) | |
1081 | buffer_free (&buffer); | |
1082 | len_avail = 0; | |
1083 | buf = NULL; | |
1084 | buffer_init (&buffer); | |
1085 | buffer_grow_str (&buffer, "<osdata type=\"shared memory\">\n"); | |
1086 | ||
614c279d | 1087 | fp = gdb_fopen_cloexec ("/proc/sysvipc/shm", "r"); |
85d4a676 SS |
1088 | if (fp) |
1089 | { | |
1090 | char buf[8192]; | |
1091 | ||
1092 | do | |
1093 | { | |
1094 | if (fgets (buf, sizeof (buf), fp)) | |
1095 | { | |
1096 | key_t key; | |
1097 | uid_t uid, cuid; | |
1098 | gid_t gid, cgid; | |
1099 | PID_T cpid, lpid; | |
1100 | int shmid, size, nattch; | |
1101 | TIME_T atime, dtime, ctime; | |
1102 | unsigned int perms; | |
1103 | int items_read; | |
1104 | ||
1105 | items_read = sscanf (buf, | |
1106 | "%d %d %o %d %lld %lld %d %u %u %u %u %lld %lld %lld", | |
1107 | &key, &shmid, &perms, &size, | |
1108 | &cpid, &lpid, | |
1109 | &nattch, | |
1110 | &uid, &gid, &cuid, &cgid, | |
1111 | &atime, &dtime, &ctime); | |
1112 | ||
1113 | if (items_read == 14) | |
1114 | { | |
1115 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1116 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1117 | char ccmd[32], lcmd[32]; | |
1118 | char atime_str[32], dtime_str[32], ctime_str[32]; | |
1119 | ||
1120 | user_from_uid (user, sizeof (user), uid); | |
1121 | group_from_gid (group, sizeof (group), gid); | |
1122 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1123 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1124 | ||
1125 | command_from_pid (ccmd, sizeof (ccmd), cpid); | |
1126 | command_from_pid (lcmd, sizeof (lcmd), lpid); | |
1127 | ||
1128 | time_from_time_t (atime_str, sizeof (atime_str), atime); | |
1129 | time_from_time_t (dtime_str, sizeof (dtime_str), dtime); | |
1130 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1131 | ||
1132 | buffer_xml_printf ( | |
1133 | &buffer, | |
1134 | "<item>" | |
1135 | "<column name=\"key\">%d</column>" | |
1136 | "<column name=\"shmid\">%d</column>" | |
1137 | "<column name=\"permissions\">%o</column>" | |
1138 | "<column name=\"size\">%d</column>" | |
1139 | "<column name=\"creator command\">%s</column>" | |
1140 | "<column name=\"last op. command\">%s</column>" | |
1141 | "<column name=\"num attached\">%d</column>" | |
1142 | "<column name=\"user\">%s</column>" | |
1143 | "<column name=\"group\">%s</column>" | |
1144 | "<column name=\"creator user\">%s</column>" | |
1145 | "<column name=\"creator group\">%s</column>" | |
1146 | "<column name=\"last shmat() time\">%s</column>" | |
1147 | "<column name=\"last shmdt() time\">%s</column>" | |
1148 | "<column name=\"last shmctl() time\">%s</column>" | |
1149 | "</item>", | |
1150 | key, | |
1151 | shmid, | |
1152 | perms, | |
1153 | size, | |
1154 | ccmd, | |
1155 | lcmd, | |
1156 | nattch, | |
1157 | user, | |
1158 | group, | |
1159 | cuser, | |
1160 | cgroup, | |
1161 | atime_str, | |
1162 | dtime_str, | |
1163 | ctime_str); | |
1164 | } | |
1165 | } | |
1166 | } | |
1167 | while (!feof (fp)); | |
1168 | ||
1169 | fclose (fp); | |
1170 | } | |
1171 | ||
1172 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1173 | buf = buffer_finish (&buffer); | |
1174 | len_avail = strlen (buf); | |
1175 | } | |
1176 | ||
1177 | if (offset >= len_avail) | |
1178 | { | |
1179 | /* Done. Get rid of the buffer. */ | |
1180 | buffer_free (&buffer); | |
1181 | buf = NULL; | |
1182 | len_avail = 0; | |
1183 | return 0; | |
1184 | } | |
1185 | ||
1186 | if (len > len_avail - offset) | |
1187 | len = len_avail - offset; | |
1188 | memcpy (readbuf, buf + offset, len); | |
1189 | ||
1190 | return len; | |
1191 | } | |
1192 | ||
1193 | /* Collect data about semaphores recorded in /proc and write it | |
1194 | into READBUF. */ | |
1195 | ||
1196 | static LONGEST | |
1197 | linux_xfer_osdata_sem (gdb_byte *readbuf, | |
dea80a27 | 1198 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1199 | { |
1200 | static const char *buf; | |
1201 | static LONGEST len_avail = -1; | |
1202 | static struct buffer buffer; | |
1203 | ||
1204 | if (offset == 0) | |
1205 | { | |
1206 | FILE *fp; | |
1207 | ||
1208 | if (len_avail != -1 && len_avail != 0) | |
1209 | buffer_free (&buffer); | |
1210 | len_avail = 0; | |
1211 | buf = NULL; | |
1212 | buffer_init (&buffer); | |
1213 | buffer_grow_str (&buffer, "<osdata type=\"semaphores\">\n"); | |
1214 | ||
614c279d | 1215 | fp = gdb_fopen_cloexec ("/proc/sysvipc/sem", "r"); |
85d4a676 SS |
1216 | if (fp) |
1217 | { | |
1218 | char buf[8192]; | |
1219 | ||
1220 | do | |
1221 | { | |
1222 | if (fgets (buf, sizeof (buf), fp)) | |
1223 | { | |
1224 | key_t key; | |
1225 | uid_t uid, cuid; | |
1226 | gid_t gid, cgid; | |
1227 | unsigned int perms, nsems; | |
1228 | int semid; | |
1229 | TIME_T otime, ctime; | |
1230 | int items_read; | |
1231 | ||
1232 | items_read = sscanf (buf, | |
1233 | "%d %d %o %u %d %d %d %d %lld %lld", | |
1234 | &key, &semid, &perms, &nsems, | |
1235 | &uid, &gid, &cuid, &cgid, | |
1236 | &otime, &ctime); | |
1237 | ||
1238 | if (items_read == 10) | |
1239 | { | |
1240 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1241 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1242 | char otime_str[32], ctime_str[32]; | |
1243 | ||
1244 | user_from_uid (user, sizeof (user), uid); | |
1245 | group_from_gid (group, sizeof (group), gid); | |
1246 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1247 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1248 | ||
1249 | time_from_time_t (otime_str, sizeof (otime_str), otime); | |
1250 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1251 | ||
1252 | buffer_xml_printf ( | |
1253 | &buffer, | |
1254 | "<item>" | |
1255 | "<column name=\"key\">%d</column>" | |
1256 | "<column name=\"semid\">%d</column>" | |
1257 | "<column name=\"permissions\">%o</column>" | |
1258 | "<column name=\"num semaphores\">%u</column>" | |
1259 | "<column name=\"user\">%s</column>" | |
1260 | "<column name=\"group\">%s</column>" | |
1261 | "<column name=\"creator user\">%s</column>" | |
1262 | "<column name=\"creator group\">%s</column>" | |
1263 | "<column name=\"last semop() time\">%s</column>" | |
1264 | "<column name=\"last semctl() time\">%s</column>" | |
1265 | "</item>", | |
1266 | key, | |
1267 | semid, | |
1268 | perms, | |
1269 | nsems, | |
1270 | user, | |
1271 | group, | |
1272 | cuser, | |
1273 | cgroup, | |
1274 | otime_str, | |
1275 | ctime_str); | |
1276 | } | |
1277 | } | |
1278 | } | |
1279 | while (!feof (fp)); | |
1280 | ||
1281 | fclose (fp); | |
1282 | } | |
1283 | ||
1284 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1285 | buf = buffer_finish (&buffer); | |
1286 | len_avail = strlen (buf); | |
1287 | } | |
1288 | ||
1289 | if (offset >= len_avail) | |
1290 | { | |
1291 | /* Done. Get rid of the buffer. */ | |
1292 | buffer_free (&buffer); | |
1293 | buf = NULL; | |
1294 | len_avail = 0; | |
1295 | return 0; | |
1296 | } | |
1297 | ||
1298 | if (len > len_avail - offset) | |
1299 | len = len_avail - offset; | |
1300 | memcpy (readbuf, buf + offset, len); | |
1301 | ||
1302 | return len; | |
1303 | } | |
1304 | ||
1305 | /* Collect data about message queues recorded in /proc and write it | |
1306 | into READBUF. */ | |
1307 | ||
1308 | static LONGEST | |
1309 | linux_xfer_osdata_msg (gdb_byte *readbuf, | |
dea80a27 | 1310 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1311 | { |
1312 | static const char *buf; | |
1313 | static LONGEST len_avail = -1; | |
1314 | static struct buffer buffer; | |
1315 | ||
1316 | if (offset == 0) | |
1317 | { | |
1318 | FILE *fp; | |
1319 | ||
1320 | if (len_avail != -1 && len_avail != 0) | |
1321 | buffer_free (&buffer); | |
1322 | len_avail = 0; | |
1323 | buf = NULL; | |
1324 | buffer_init (&buffer); | |
1325 | buffer_grow_str (&buffer, "<osdata type=\"message queues\">\n"); | |
1326 | ||
614c279d | 1327 | fp = gdb_fopen_cloexec ("/proc/sysvipc/msg", "r"); |
85d4a676 SS |
1328 | if (fp) |
1329 | { | |
1330 | char buf[8192]; | |
1331 | ||
1332 | do | |
1333 | { | |
1334 | if (fgets (buf, sizeof (buf), fp)) | |
1335 | { | |
1336 | key_t key; | |
1337 | PID_T lspid, lrpid; | |
1338 | uid_t uid, cuid; | |
1339 | gid_t gid, cgid; | |
1340 | unsigned int perms, cbytes, qnum; | |
1341 | int msqid; | |
1342 | TIME_T stime, rtime, ctime; | |
1343 | int items_read; | |
1344 | ||
1345 | items_read = sscanf (buf, | |
1346 | "%d %d %o %u %u %lld %lld %d %d %d %d %lld %lld %lld", | |
1347 | &key, &msqid, &perms, &cbytes, &qnum, | |
1348 | &lspid, &lrpid, &uid, &gid, &cuid, &cgid, | |
1349 | &stime, &rtime, &ctime); | |
1350 | ||
1351 | if (items_read == 14) | |
1352 | { | |
1353 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1354 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1355 | char lscmd[32], lrcmd[32]; | |
1356 | char stime_str[32], rtime_str[32], ctime_str[32]; | |
1357 | ||
1358 | user_from_uid (user, sizeof (user), uid); | |
1359 | group_from_gid (group, sizeof (group), gid); | |
1360 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1361 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1362 | ||
1363 | command_from_pid (lscmd, sizeof (lscmd), lspid); | |
1364 | command_from_pid (lrcmd, sizeof (lrcmd), lrpid); | |
1365 | ||
1366 | time_from_time_t (stime_str, sizeof (stime_str), stime); | |
1367 | time_from_time_t (rtime_str, sizeof (rtime_str), rtime); | |
1368 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1369 | ||
1370 | buffer_xml_printf ( | |
1371 | &buffer, | |
1372 | "<item>" | |
1373 | "<column name=\"key\">%d</column>" | |
1374 | "<column name=\"msqid\">%d</column>" | |
1375 | "<column name=\"permissions\">%o</column>" | |
1376 | "<column name=\"num used bytes\">%u</column>" | |
1377 | "<column name=\"num messages\">%u</column>" | |
1378 | "<column name=\"last msgsnd() command\">%s</column>" | |
1379 | "<column name=\"last msgrcv() command\">%s</column>" | |
1380 | "<column name=\"user\">%s</column>" | |
1381 | "<column name=\"group\">%s</column>" | |
1382 | "<column name=\"creator user\">%s</column>" | |
1383 | "<column name=\"creator group\">%s</column>" | |
1384 | "<column name=\"last msgsnd() time\">%s</column>" | |
1385 | "<column name=\"last msgrcv() time\">%s</column>" | |
1386 | "<column name=\"last msgctl() time\">%s</column>" | |
1387 | "</item>", | |
1388 | key, | |
1389 | msqid, | |
1390 | perms, | |
1391 | cbytes, | |
1392 | qnum, | |
1393 | lscmd, | |
1394 | lrcmd, | |
1395 | user, | |
1396 | group, | |
1397 | cuser, | |
1398 | cgroup, | |
1399 | stime_str, | |
1400 | rtime_str, | |
1401 | ctime_str); | |
1402 | } | |
1403 | } | |
1404 | } | |
1405 | while (!feof (fp)); | |
1406 | ||
1407 | fclose (fp); | |
1408 | } | |
1409 | ||
1410 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1411 | buf = buffer_finish (&buffer); | |
1412 | len_avail = strlen (buf); | |
1413 | } | |
1414 | ||
1415 | if (offset >= len_avail) | |
1416 | { | |
1417 | /* Done. Get rid of the buffer. */ | |
1418 | buffer_free (&buffer); | |
1419 | buf = NULL; | |
1420 | len_avail = 0; | |
1421 | return 0; | |
1422 | } | |
1423 | ||
1424 | if (len > len_avail - offset) | |
1425 | len = len_avail - offset; | |
1426 | memcpy (readbuf, buf + offset, len); | |
1427 | ||
1428 | return len; | |
1429 | } | |
1430 | ||
1431 | /* Collect data about loaded kernel modules and write it into | |
1432 | READBUF. */ | |
1433 | ||
1434 | static LONGEST | |
1435 | linux_xfer_osdata_modules (gdb_byte *readbuf, | |
dea80a27 | 1436 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1437 | { |
1438 | static const char *buf; | |
1439 | static LONGEST len_avail = -1; | |
1440 | static struct buffer buffer; | |
1441 | ||
1442 | if (offset == 0) | |
1443 | { | |
1444 | FILE *fp; | |
1445 | ||
1446 | if (len_avail != -1 && len_avail != 0) | |
1447 | buffer_free (&buffer); | |
1448 | len_avail = 0; | |
1449 | buf = NULL; | |
1450 | buffer_init (&buffer); | |
1451 | buffer_grow_str (&buffer, "<osdata type=\"modules\">\n"); | |
1452 | ||
614c279d | 1453 | fp = gdb_fopen_cloexec ("/proc/modules", "r"); |
85d4a676 SS |
1454 | if (fp) |
1455 | { | |
1456 | char buf[8192]; | |
1457 | ||
1458 | do | |
1459 | { | |
1460 | if (fgets (buf, sizeof (buf), fp)) | |
1461 | { | |
f60db4f0 | 1462 | char *name, *dependencies, *status, *tmp; |
85d4a676 SS |
1463 | unsigned int size; |
1464 | unsigned long long address; | |
1465 | int uses; | |
85d4a676 | 1466 | |
f60db4f0 GB |
1467 | name = strtok (buf, " "); |
1468 | if (name == NULL) | |
1469 | continue; | |
1470 | ||
1471 | tmp = strtok (NULL, " "); | |
1472 | if (tmp == NULL) | |
1473 | continue; | |
1474 | if (sscanf (tmp, "%u", &size) != 1) | |
1475 | continue; | |
1476 | ||
1477 | tmp = strtok (NULL, " "); | |
1478 | if (tmp == NULL) | |
1479 | continue; | |
1480 | if (sscanf (tmp, "%d", &uses) != 1) | |
1481 | continue; | |
1482 | ||
1483 | dependencies = strtok (NULL, " "); | |
1484 | if (dependencies == NULL) | |
1485 | continue; | |
1486 | ||
1487 | status = strtok (NULL, " "); | |
1488 | if (status == NULL) | |
1489 | continue; | |
1490 | ||
1491 | tmp = strtok (NULL, "\n"); | |
1492 | if (tmp == NULL) | |
1493 | continue; | |
1494 | if (sscanf (tmp, "%llx", &address) != 1) | |
1495 | continue; | |
1496 | ||
1497 | buffer_xml_printf ( | |
85d4a676 SS |
1498 | &buffer, |
1499 | "<item>" | |
1500 | "<column name=\"name\">%s</column>" | |
1501 | "<column name=\"size\">%u</column>" | |
1502 | "<column name=\"num uses\">%d</column>" | |
1503 | "<column name=\"dependencies\">%s</column>" | |
1504 | "<column name=\"status\">%s</column>" | |
1505 | "<column name=\"address\">%llx</column>" | |
1506 | "</item>", | |
1507 | name, | |
1508 | size, | |
1509 | uses, | |
1510 | dependencies, | |
1511 | status, | |
1512 | address); | |
1513 | } | |
1514 | } | |
1515 | while (!feof (fp)); | |
1516 | ||
1517 | fclose (fp); | |
1518 | } | |
1519 | ||
1520 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1521 | buf = buffer_finish (&buffer); | |
1522 | len_avail = strlen (buf); | |
1523 | } | |
1524 | ||
1525 | if (offset >= len_avail) | |
1526 | { | |
1527 | /* Done. Get rid of the buffer. */ | |
1528 | buffer_free (&buffer); | |
1529 | buf = NULL; | |
1530 | len_avail = 0; | |
1531 | return 0; | |
1532 | } | |
1533 | ||
1534 | if (len > len_avail - offset) | |
1535 | len = len_avail - offset; | |
1536 | memcpy (readbuf, buf + offset, len); | |
1537 | ||
1538 | return len; | |
1539 | } | |
1540 | ||
d26e3629 KY |
1541 | struct osdata_type { |
1542 | char *type; | |
71caed83 | 1543 | char *title; |
d26e3629 | 1544 | char *description; |
dea80a27 | 1545 | LONGEST (*getter) (gdb_byte *readbuf, ULONGEST offset, ULONGEST len); |
d26e3629 | 1546 | } osdata_table[] = { |
71caed83 | 1547 | { "processes", "Processes", "Listing of all processes", |
85d4a676 | 1548 | linux_xfer_osdata_processes }, |
71caed83 | 1549 | { "procgroups", "Process groups", "Listing of all process groups", |
85d4a676 | 1550 | linux_xfer_osdata_processgroups }, |
71caed83 | 1551 | { "threads", "Threads", "Listing of all threads", |
85d4a676 | 1552 | linux_xfer_osdata_threads }, |
71caed83 | 1553 | { "files", "File descriptors", "Listing of all file descriptors", |
85d4a676 | 1554 | linux_xfer_osdata_fds }, |
71caed83 | 1555 | { "sockets", "Sockets", "Listing of all internet-domain sockets", |
85d4a676 | 1556 | linux_xfer_osdata_isockets }, |
71caed83 | 1557 | { "shm", "Shared-memory regions", "Listing of all shared-memory regions", |
85d4a676 | 1558 | linux_xfer_osdata_shm }, |
71caed83 | 1559 | { "semaphores", "Semaphores", "Listing of all semaphores", |
85d4a676 | 1560 | linux_xfer_osdata_sem }, |
71caed83 | 1561 | { "msg", "Message queues", "Listing of all message queues", |
85d4a676 | 1562 | linux_xfer_osdata_msg }, |
71caed83 | 1563 | { "modules", "Kernel modules", "Listing of all loaded kernel modules", |
85d4a676 | 1564 | linux_xfer_osdata_modules }, |
d26e3629 KY |
1565 | { NULL, NULL, NULL } |
1566 | }; | |
1567 | ||
1568 | LONGEST | |
1569 | linux_common_xfer_osdata (const char *annex, gdb_byte *readbuf, | |
dea80a27 | 1570 | ULONGEST offset, ULONGEST len) |
d26e3629 KY |
1571 | { |
1572 | if (!annex || *annex == '\0') | |
1573 | { | |
1574 | static const char *buf; | |
1575 | static LONGEST len_avail = -1; | |
1576 | static struct buffer buffer; | |
1577 | ||
1578 | if (offset == 0) | |
1579 | { | |
1580 | int i; | |
1581 | ||
1582 | if (len_avail != -1 && len_avail != 0) | |
1583 | buffer_free (&buffer); | |
1584 | len_avail = 0; | |
1585 | buf = NULL; | |
1586 | buffer_init (&buffer); | |
1587 | buffer_grow_str (&buffer, "<osdata type=\"types\">\n"); | |
1588 | ||
1589 | for (i = 0; osdata_table[i].type; ++i) | |
1590 | buffer_xml_printf ( | |
1591 | &buffer, | |
1592 | "<item>" | |
1593 | "<column name=\"Type\">%s</column>" | |
1594 | "<column name=\"Description\">%s</column>" | |
71caed83 | 1595 | "<column name=\"Title\">%s</column>" |
d26e3629 KY |
1596 | "</item>", |
1597 | osdata_table[i].type, | |
71caed83 SS |
1598 | osdata_table[i].description, |
1599 | osdata_table[i].title); | |
d26e3629 KY |
1600 | |
1601 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1602 | buf = buffer_finish (&buffer); | |
1603 | len_avail = strlen (buf); | |
1604 | } | |
1605 | ||
1606 | if (offset >= len_avail) | |
1607 | { | |
1608 | /* Done. Get rid of the buffer. */ | |
1609 | buffer_free (&buffer); | |
1610 | buf = NULL; | |
1611 | len_avail = 0; | |
1612 | return 0; | |
1613 | } | |
1614 | ||
1615 | if (len > len_avail - offset) | |
1616 | len = len_avail - offset; | |
1617 | memcpy (readbuf, buf + offset, len); | |
1618 | ||
1619 | return len; | |
1620 | } | |
1621 | else | |
1622 | { | |
1623 | int i; | |
1624 | ||
1625 | for (i = 0; osdata_table[i].type; ++i) | |
1626 | { | |
1627 | if (strcmp (annex, osdata_table[i].type) == 0) | |
1628 | { | |
1629 | gdb_assert (readbuf); | |
1630 | ||
1631 | return (osdata_table[i].getter) (readbuf, offset, len); | |
1632 | } | |
1633 | } | |
1634 | ||
1635 | return 0; | |
1636 | } | |
1637 | } | |
1638 |