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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 | ||
184cd072 JK |
99 | /* ps command also relies on no trailing fields ever contain ')'. */ |
100 | p = strrchr (content, ')'); | |
d26e3629 KY |
101 | if (p != NULL) |
102 | p++; | |
103 | ||
104 | /* If the first field after program name has index 0, then core number is | |
105 | the field with index 36. There's no constant for that anywhere. */ | |
106 | if (p != NULL) | |
107 | p = strtok_r (p, " ", &ts); | |
108 | for (i = 0; p != NULL && i != 36; ++i) | |
109 | p = strtok_r (NULL, " ", &ts); | |
110 | ||
111 | if (p == NULL || sscanf (p, "%d", &core) == 0) | |
112 | core = -1; | |
113 | ||
114 | xfree (content); | |
115 | fclose (f); | |
116 | ||
117 | return core; | |
118 | } | |
119 | ||
85d4a676 SS |
120 | /* Finds the command-line of process PID and copies it into COMMAND. |
121 | At most MAXLEN characters are copied. If the command-line cannot | |
122 | be found, PID is copied into command in text-form. */ | |
123 | ||
d26e3629 | 124 | static void |
85d4a676 | 125 | command_from_pid (char *command, int maxlen, PID_T pid) |
d26e3629 | 126 | { |
85d4a676 | 127 | char *stat_path = xstrprintf ("/proc/%lld/stat", pid); |
614c279d | 128 | FILE *fp = gdb_fopen_cloexec (stat_path, "r"); |
d26e3629 KY |
129 | |
130 | command[0] = '\0'; | |
131 | ||
132 | if (fp) | |
133 | { | |
134 | /* sizeof (cmd) should be greater or equal to TASK_COMM_LEN (in | |
135 | include/linux/sched.h in the Linux kernel sources) plus two | |
136 | (for the brackets). */ | |
f60db4f0 | 137 | char cmd[18]; |
85d4a676 | 138 | PID_T stat_pid; |
f60db4f0 | 139 | int items_read = fscanf (fp, "%lld %17s", &stat_pid, cmd); |
d26e3629 KY |
140 | |
141 | if (items_read == 2 && pid == stat_pid) | |
142 | { | |
143 | cmd[strlen (cmd) - 1] = '\0'; /* Remove trailing parenthesis. */ | |
144 | strncpy (command, cmd + 1, maxlen); /* Ignore leading parenthesis. */ | |
145 | } | |
146 | ||
147 | fclose (fp); | |
148 | } | |
149 | else | |
150 | { | |
151 | /* Return the PID if a /proc entry for the process cannot be found. */ | |
85d4a676 | 152 | snprintf (command, maxlen, "%lld", pid); |
d26e3629 KY |
153 | } |
154 | ||
155 | command[maxlen - 1] = '\0'; /* Ensure string is null-terminated. */ | |
156 | ||
157 | xfree (stat_path); | |
158 | } | |
159 | ||
85d4a676 SS |
160 | /* Returns the command-line of the process with the given PID. The |
161 | returned string needs to be freed using xfree after use. */ | |
d26e3629 KY |
162 | |
163 | static char * | |
85d4a676 | 164 | commandline_from_pid (PID_T pid) |
d26e3629 | 165 | { |
85d4a676 | 166 | char *pathname = xstrprintf ("/proc/%lld/cmdline", pid); |
d26e3629 | 167 | char *commandline = NULL; |
614c279d | 168 | FILE *f = gdb_fopen_cloexec (pathname, "r"); |
d26e3629 KY |
169 | |
170 | if (f) | |
171 | { | |
172 | size_t len = 0; | |
173 | ||
174 | while (!feof (f)) | |
175 | { | |
176 | char buf[1024]; | |
177 | size_t read_bytes = fread (buf, 1, sizeof (buf), f); | |
178 | ||
179 | if (read_bytes) | |
180 | { | |
181 | commandline = (char *) xrealloc (commandline, len + read_bytes + 1); | |
182 | memcpy (commandline + len, buf, read_bytes); | |
183 | len += read_bytes; | |
184 | } | |
185 | } | |
186 | ||
187 | fclose (f); | |
188 | ||
189 | if (commandline) | |
190 | { | |
191 | size_t i; | |
192 | ||
193 | /* Replace null characters with spaces. */ | |
194 | for (i = 0; i < len; ++i) | |
195 | if (commandline[i] == '\0') | |
196 | commandline[i] = ' '; | |
197 | ||
198 | commandline[len] = '\0'; | |
199 | } | |
200 | else | |
201 | { | |
85d4a676 SS |
202 | /* Return the command in square brackets if the command-line |
203 | is empty. */ | |
d26e3629 KY |
204 | commandline = (char *) xmalloc (32); |
205 | commandline[0] = '['; | |
206 | command_from_pid (commandline + 1, 31, pid); | |
207 | ||
208 | len = strlen (commandline); | |
209 | if (len < 31) | |
210 | strcat (commandline, "]"); | |
211 | } | |
212 | } | |
213 | ||
214 | xfree (pathname); | |
215 | ||
216 | return commandline; | |
217 | } | |
218 | ||
85d4a676 SS |
219 | /* Finds the user name for the user UID and copies it into USER. At |
220 | most MAXLEN characters are copied. */ | |
221 | ||
d26e3629 KY |
222 | static void |
223 | user_from_uid (char *user, int maxlen, uid_t uid) | |
224 | { | |
225 | struct passwd *pwentry = getpwuid (uid); | |
226 | ||
227 | if (pwentry) | |
228 | { | |
229 | strncpy (user, pwentry->pw_name, maxlen); | |
85d4a676 SS |
230 | /* Ensure that the user name is null-terminated. */ |
231 | user[maxlen - 1] = '\0'; | |
d26e3629 KY |
232 | } |
233 | else | |
234 | user[0] = '\0'; | |
235 | } | |
236 | ||
85d4a676 SS |
237 | /* Finds the owner of process PID and returns the user id in OWNER. |
238 | Returns 0 if the owner was found, -1 otherwise. */ | |
239 | ||
d26e3629 | 240 | static int |
85d4a676 | 241 | get_process_owner (uid_t *owner, PID_T pid) |
d26e3629 KY |
242 | { |
243 | struct stat statbuf; | |
85d4a676 | 244 | char procentry[sizeof ("/proc/") + MAX_PID_T_STRLEN]; |
d26e3629 | 245 | |
85d4a676 | 246 | sprintf (procentry, "/proc/%lld", pid); |
d26e3629 KY |
247 | |
248 | if (stat (procentry, &statbuf) == 0 && S_ISDIR (statbuf.st_mode)) | |
249 | { | |
250 | *owner = statbuf.st_uid; | |
251 | return 0; | |
252 | } | |
253 | else | |
254 | return -1; | |
255 | } | |
256 | ||
85d4a676 | 257 | /* Find the CPU cores used by process PID and return them in CORES. |
184cd072 | 258 | CORES points to an array of NUM_CORES elements. */ |
d26e3629 KY |
259 | |
260 | static int | |
184cd072 | 261 | get_cores_used_by_process (PID_T pid, int *cores, const int num_cores) |
d26e3629 | 262 | { |
85d4a676 | 263 | char taskdir[sizeof ("/proc/") + MAX_PID_T_STRLEN + sizeof ("/task") - 1]; |
d26e3629 KY |
264 | DIR *dir; |
265 | struct dirent *dp; | |
266 | int task_count = 0; | |
267 | ||
85d4a676 | 268 | sprintf (taskdir, "/proc/%lld/task", pid); |
d26e3629 | 269 | dir = opendir (taskdir); |
e5798bef | 270 | if (dir) |
d26e3629 | 271 | { |
e5798bef PA |
272 | while ((dp = readdir (dir)) != NULL) |
273 | { | |
85d4a676 | 274 | PID_T tid; |
e5798bef | 275 | int core; |
d26e3629 | 276 | |
e5798bef | 277 | if (!isdigit (dp->d_name[0]) |
85d4a676 | 278 | || NAMELEN (dp) > MAX_PID_T_STRLEN) |
e5798bef | 279 | continue; |
d26e3629 | 280 | |
85d4a676 SS |
281 | sscanf (dp->d_name, "%lld", &tid); |
282 | core = linux_common_core_of_thread (ptid_build ((pid_t) pid, | |
283 | (pid_t) tid, 0)); | |
d26e3629 | 284 | |
184cd072 | 285 | if (core >= 0 && core < num_cores) |
e5798bef PA |
286 | { |
287 | ++cores[core]; | |
288 | ++task_count; | |
289 | } | |
d26e3629 | 290 | } |
d26e3629 | 291 | |
e5798bef PA |
292 | closedir (dir); |
293 | } | |
d26e3629 KY |
294 | |
295 | return task_count; | |
296 | } | |
297 | ||
298 | static LONGEST | |
299 | linux_xfer_osdata_processes (gdb_byte *readbuf, | |
dea80a27 | 300 | ULONGEST offset, ULONGEST len) |
d26e3629 KY |
301 | { |
302 | /* We make the process list snapshot when the object starts to be read. */ | |
303 | static const char *buf; | |
304 | static LONGEST len_avail = -1; | |
305 | static struct buffer buffer; | |
306 | ||
307 | if (offset == 0) | |
308 | { | |
309 | DIR *dirp; | |
310 | ||
311 | if (len_avail != -1 && len_avail != 0) | |
312 | buffer_free (&buffer); | |
313 | len_avail = 0; | |
314 | buf = NULL; | |
315 | buffer_init (&buffer); | |
316 | buffer_grow_str (&buffer, "<osdata type=\"processes\">\n"); | |
317 | ||
318 | dirp = opendir ("/proc"); | |
319 | if (dirp) | |
320 | { | |
b245bdfc | 321 | const int num_cores = sysconf (_SC_NPROCESSORS_ONLN); |
d26e3629 KY |
322 | struct dirent *dp; |
323 | ||
324 | while ((dp = readdir (dirp)) != NULL) | |
325 | { | |
85d4a676 | 326 | PID_T pid; |
d26e3629 KY |
327 | uid_t owner; |
328 | char user[UT_NAMESIZE]; | |
329 | char *command_line; | |
330 | int *cores; | |
331 | int task_count; | |
332 | char *cores_str; | |
333 | int i; | |
334 | ||
335 | if (!isdigit (dp->d_name[0]) | |
85d4a676 | 336 | || NAMELEN (dp) > MAX_PID_T_STRLEN) |
d26e3629 KY |
337 | continue; |
338 | ||
85d4a676 | 339 | sscanf (dp->d_name, "%lld", &pid); |
d26e3629 KY |
340 | command_line = commandline_from_pid (pid); |
341 | ||
342 | if (get_process_owner (&owner, pid) == 0) | |
343 | user_from_uid (user, sizeof (user), owner); | |
344 | else | |
345 | strcpy (user, "?"); | |
346 | ||
347 | /* Find CPU cores used by the process. */ | |
348 | cores = (int *) xcalloc (num_cores, sizeof (int)); | |
184cd072 | 349 | task_count = get_cores_used_by_process (pid, cores, num_cores); |
d26e3629 KY |
350 | cores_str = (char *) xcalloc (task_count, sizeof ("4294967295") + 1); |
351 | ||
352 | for (i = 0; i < num_cores && task_count > 0; ++i) | |
353 | if (cores[i]) | |
354 | { | |
85d4a676 | 355 | char core_str[sizeof ("4294967295")]; |
d26e3629 KY |
356 | |
357 | sprintf (core_str, "%d", i); | |
358 | strcat (cores_str, core_str); | |
359 | ||
360 | task_count -= cores[i]; | |
361 | if (task_count > 0) | |
362 | strcat (cores_str, ","); | |
363 | } | |
364 | ||
365 | xfree (cores); | |
366 | ||
367 | buffer_xml_printf ( | |
368 | &buffer, | |
369 | "<item>" | |
85d4a676 | 370 | "<column name=\"pid\">%lld</column>" |
d26e3629 KY |
371 | "<column name=\"user\">%s</column>" |
372 | "<column name=\"command\">%s</column>" | |
373 | "<column name=\"cores\">%s</column>" | |
374 | "</item>", | |
375 | pid, | |
376 | user, | |
377 | command_line ? command_line : "", | |
378 | cores_str); | |
379 | ||
380 | xfree (command_line); | |
381 | xfree (cores_str); | |
382 | } | |
383 | ||
384 | closedir (dirp); | |
385 | } | |
386 | ||
387 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
388 | buf = buffer_finish (&buffer); | |
389 | len_avail = strlen (buf); | |
390 | } | |
391 | ||
392 | if (offset >= len_avail) | |
393 | { | |
394 | /* Done. Get rid of the buffer. */ | |
395 | buffer_free (&buffer); | |
396 | buf = NULL; | |
397 | len_avail = 0; | |
398 | return 0; | |
399 | } | |
400 | ||
401 | if (len > len_avail - offset) | |
402 | len = len_avail - offset; | |
403 | memcpy (readbuf, buf + offset, len); | |
404 | ||
405 | return len; | |
406 | } | |
407 | ||
85d4a676 SS |
408 | /* Auxiliary function used by qsort to sort processes by process |
409 | group. Compares two processes with ids PROCESS1 and PROCESS2. | |
410 | PROCESS1 comes before PROCESS2 if it has a lower process group id. | |
411 | If they belong to the same process group, PROCESS1 comes before | |
412 | PROCESS2 if it has a lower process id or is the process group | |
413 | leader. */ | |
414 | ||
415 | static int | |
416 | compare_processes (const void *process1, const void *process2) | |
417 | { | |
418 | PID_T pid1 = *((PID_T *) process1); | |
419 | PID_T pid2 = *((PID_T *) process2); | |
420 | PID_T pgid1 = *((PID_T *) process1 + 1); | |
421 | PID_T pgid2 = *((PID_T *) process2 + 1); | |
422 | ||
423 | /* Sort by PGID. */ | |
424 | if (pgid1 < pgid2) | |
425 | return -1; | |
426 | else if (pgid1 > pgid2) | |
427 | return 1; | |
428 | else | |
429 | { | |
430 | /* Process group leaders always come first, else sort by PID. */ | |
431 | if (pid1 == pgid1) | |
432 | return -1; | |
433 | else if (pid2 == pgid2) | |
434 | return 1; | |
435 | else if (pid1 < pid2) | |
436 | return -1; | |
437 | else if (pid1 > pid2) | |
438 | return 1; | |
439 | else | |
440 | return 0; | |
441 | } | |
442 | } | |
443 | ||
444 | /* Collect all process groups from /proc. */ | |
445 | ||
446 | static LONGEST | |
447 | linux_xfer_osdata_processgroups (gdb_byte *readbuf, | |
dea80a27 | 448 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
449 | { |
450 | /* We make the process list snapshot when the object starts to be read. */ | |
451 | static const char *buf; | |
452 | static LONGEST len_avail = -1; | |
453 | static struct buffer buffer; | |
454 | ||
455 | if (offset == 0) | |
456 | { | |
457 | DIR *dirp; | |
458 | ||
459 | if (len_avail != -1 && len_avail != 0) | |
460 | buffer_free (&buffer); | |
461 | len_avail = 0; | |
462 | buf = NULL; | |
463 | buffer_init (&buffer); | |
464 | buffer_grow_str (&buffer, "<osdata type=\"process groups\">\n"); | |
465 | ||
466 | dirp = opendir ("/proc"); | |
467 | if (dirp) | |
468 | { | |
469 | struct dirent *dp; | |
470 | const size_t list_block_size = 512; | |
471 | PID_T *process_list = (PID_T *) xmalloc (list_block_size * 2 * sizeof (PID_T)); | |
472 | size_t process_count = 0; | |
473 | size_t i; | |
474 | ||
475 | /* Build list consisting of PIDs followed by their | |
476 | associated PGID. */ | |
477 | while ((dp = readdir (dirp)) != NULL) | |
478 | { | |
479 | PID_T pid, pgid; | |
480 | ||
481 | if (!isdigit (dp->d_name[0]) | |
482 | || NAMELEN (dp) > MAX_PID_T_STRLEN) | |
483 | continue; | |
484 | ||
485 | sscanf (dp->d_name, "%lld", &pid); | |
486 | pgid = getpgid (pid); | |
487 | ||
488 | if (pgid > 0) | |
489 | { | |
490 | process_list[2 * process_count] = pid; | |
491 | process_list[2 * process_count + 1] = pgid; | |
492 | ++process_count; | |
493 | ||
494 | /* Increase the size of the list if necessary. */ | |
495 | if (process_count % list_block_size == 0) | |
496 | process_list = (PID_T *) xrealloc ( | |
497 | process_list, | |
498 | (process_count + list_block_size) | |
499 | * 2 * sizeof (PID_T)); | |
500 | } | |
501 | } | |
502 | ||
503 | closedir (dirp); | |
504 | ||
505 | /* Sort the process list. */ | |
506 | qsort (process_list, process_count, 2 * sizeof (PID_T), | |
507 | compare_processes); | |
508 | ||
509 | for (i = 0; i < process_count; ++i) | |
510 | { | |
511 | PID_T pid = process_list[2 * i]; | |
512 | PID_T pgid = process_list[2 * i + 1]; | |
513 | char leader_command[32]; | |
514 | char *command_line; | |
515 | ||
516 | command_from_pid (leader_command, sizeof (leader_command), pgid); | |
517 | command_line = commandline_from_pid (pid); | |
518 | ||
519 | buffer_xml_printf ( | |
520 | &buffer, | |
521 | "<item>" | |
522 | "<column name=\"pgid\">%lld</column>" | |
523 | "<column name=\"leader command\">%s</column>" | |
524 | "<column name=\"pid\">%lld</column>" | |
525 | "<column name=\"command line\">%s</column>" | |
526 | "</item>", | |
527 | pgid, | |
528 | leader_command, | |
529 | pid, | |
530 | command_line ? command_line : ""); | |
531 | ||
532 | xfree (command_line); | |
533 | } | |
534 | ||
535 | xfree (process_list); | |
536 | } | |
537 | ||
538 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
539 | buf = buffer_finish (&buffer); | |
540 | len_avail = strlen (buf); | |
541 | } | |
542 | ||
543 | if (offset >= len_avail) | |
544 | { | |
545 | /* Done. Get rid of the buffer. */ | |
546 | buffer_free (&buffer); | |
547 | buf = NULL; | |
548 | len_avail = 0; | |
549 | return 0; | |
550 | } | |
551 | ||
552 | if (len > len_avail - offset) | |
553 | len = len_avail - offset; | |
554 | memcpy (readbuf, buf + offset, len); | |
555 | ||
556 | return len; | |
557 | } | |
558 | ||
559 | /* Collect all the threads in /proc by iterating through processes and | |
560 | then tasks within each process. */ | |
561 | ||
d26e3629 KY |
562 | static LONGEST |
563 | linux_xfer_osdata_threads (gdb_byte *readbuf, | |
dea80a27 | 564 | ULONGEST offset, ULONGEST len) |
d26e3629 KY |
565 | { |
566 | /* We make the process list snapshot when the object starts to be read. */ | |
567 | static const char *buf; | |
568 | static LONGEST len_avail = -1; | |
569 | static struct buffer buffer; | |
570 | ||
571 | if (offset == 0) | |
572 | { | |
573 | DIR *dirp; | |
574 | ||
575 | if (len_avail != -1 && len_avail != 0) | |
576 | buffer_free (&buffer); | |
577 | len_avail = 0; | |
578 | buf = NULL; | |
579 | buffer_init (&buffer); | |
580 | buffer_grow_str (&buffer, "<osdata type=\"threads\">\n"); | |
581 | ||
582 | dirp = opendir ("/proc"); | |
583 | if (dirp) | |
584 | { | |
585 | struct dirent *dp; | |
586 | ||
587 | while ((dp = readdir (dirp)) != NULL) | |
588 | { | |
589 | struct stat statbuf; | |
590 | char procentry[sizeof ("/proc/4294967295")]; | |
591 | ||
592 | if (!isdigit (dp->d_name[0]) | |
593 | || NAMELEN (dp) > sizeof ("4294967295") - 1) | |
594 | continue; | |
595 | ||
596 | sprintf (procentry, "/proc/%s", dp->d_name); | |
597 | if (stat (procentry, &statbuf) == 0 | |
598 | && S_ISDIR (statbuf.st_mode)) | |
599 | { | |
600 | DIR *dirp2; | |
601 | char *pathname; | |
85d4a676 | 602 | PID_T pid; |
d26e3629 KY |
603 | char command[32]; |
604 | ||
605 | pathname = xstrprintf ("/proc/%s/task", dp->d_name); | |
606 | ||
607 | pid = atoi (dp->d_name); | |
608 | command_from_pid (command, sizeof (command), pid); | |
609 | ||
610 | dirp2 = opendir (pathname); | |
611 | ||
612 | if (dirp2) | |
613 | { | |
614 | struct dirent *dp2; | |
615 | ||
616 | while ((dp2 = readdir (dirp2)) != NULL) | |
617 | { | |
85d4a676 | 618 | PID_T tid; |
d26e3629 KY |
619 | int core; |
620 | ||
621 | if (!isdigit (dp2->d_name[0]) | |
622 | || NAMELEN (dp2) > sizeof ("4294967295") - 1) | |
623 | continue; | |
624 | ||
625 | tid = atoi (dp2->d_name); | |
626 | core = linux_common_core_of_thread (ptid_build (pid, tid, 0)); | |
627 | ||
628 | buffer_xml_printf ( | |
629 | &buffer, | |
630 | "<item>" | |
85d4a676 | 631 | "<column name=\"pid\">%lld</column>" |
d26e3629 | 632 | "<column name=\"command\">%s</column>" |
85d4a676 | 633 | "<column name=\"tid\">%lld</column>" |
d26e3629 KY |
634 | "<column name=\"core\">%d</column>" |
635 | "</item>", | |
636 | pid, | |
637 | command, | |
638 | tid, | |
639 | core); | |
640 | } | |
641 | ||
642 | closedir (dirp2); | |
643 | } | |
644 | ||
645 | xfree (pathname); | |
646 | } | |
647 | } | |
648 | ||
649 | closedir (dirp); | |
650 | } | |
651 | ||
652 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
653 | buf = buffer_finish (&buffer); | |
654 | len_avail = strlen (buf); | |
655 | } | |
656 | ||
657 | if (offset >= len_avail) | |
658 | { | |
659 | /* Done. Get rid of the buffer. */ | |
660 | buffer_free (&buffer); | |
661 | buf = NULL; | |
662 | len_avail = 0; | |
663 | return 0; | |
664 | } | |
665 | ||
666 | if (len > len_avail - offset) | |
667 | len = len_avail - offset; | |
668 | memcpy (readbuf, buf + offset, len); | |
669 | ||
670 | return len; | |
671 | } | |
672 | ||
85d4a676 SS |
673 | /* Collect all the open file descriptors found in /proc and put the details |
674 | found about them into READBUF. */ | |
675 | ||
676 | static LONGEST | |
677 | linux_xfer_osdata_fds (gdb_byte *readbuf, | |
dea80a27 | 678 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
679 | { |
680 | /* We make the process list snapshot when the object starts to be read. */ | |
681 | static const char *buf; | |
682 | static LONGEST len_avail = -1; | |
683 | static struct buffer buffer; | |
684 | ||
685 | if (offset == 0) | |
686 | { | |
687 | DIR *dirp; | |
688 | ||
689 | if (len_avail != -1 && len_avail != 0) | |
690 | buffer_free (&buffer); | |
691 | len_avail = 0; | |
692 | buf = NULL; | |
693 | buffer_init (&buffer); | |
694 | buffer_grow_str (&buffer, "<osdata type=\"files\">\n"); | |
695 | ||
696 | dirp = opendir ("/proc"); | |
697 | if (dirp) | |
698 | { | |
699 | struct dirent *dp; | |
700 | ||
701 | while ((dp = readdir (dirp)) != NULL) | |
702 | { | |
703 | struct stat statbuf; | |
704 | char procentry[sizeof ("/proc/4294967295")]; | |
705 | ||
706 | if (!isdigit (dp->d_name[0]) | |
707 | || NAMELEN (dp) > sizeof ("4294967295") - 1) | |
708 | continue; | |
709 | ||
710 | sprintf (procentry, "/proc/%s", dp->d_name); | |
711 | if (stat (procentry, &statbuf) == 0 | |
712 | && S_ISDIR (statbuf.st_mode)) | |
713 | { | |
714 | char *pathname; | |
715 | DIR *dirp2; | |
716 | PID_T pid; | |
717 | char command[32]; | |
718 | ||
719 | pid = atoi (dp->d_name); | |
720 | command_from_pid (command, sizeof (command), pid); | |
721 | ||
722 | pathname = xstrprintf ("/proc/%s/fd", dp->d_name); | |
723 | dirp2 = opendir (pathname); | |
724 | ||
725 | if (dirp2) | |
726 | { | |
727 | struct dirent *dp2; | |
728 | ||
729 | while ((dp2 = readdir (dirp2)) != NULL) | |
730 | { | |
731 | char *fdname; | |
732 | char buf[1000]; | |
733 | ssize_t rslt; | |
734 | ||
735 | if (!isdigit (dp2->d_name[0])) | |
736 | continue; | |
737 | ||
738 | fdname = xstrprintf ("%s/%s", pathname, dp2->d_name); | |
0270a750 | 739 | rslt = readlink (fdname, buf, sizeof (buf) - 1); |
85d4a676 SS |
740 | if (rslt >= 0) |
741 | buf[rslt] = '\0'; | |
742 | ||
743 | buffer_xml_printf ( | |
744 | &buffer, | |
745 | "<item>" | |
746 | "<column name=\"pid\">%s</column>" | |
747 | "<column name=\"command\">%s</column>" | |
748 | "<column name=\"file descriptor\">%s</column>" | |
749 | "<column name=\"name\">%s</column>" | |
750 | "</item>", | |
751 | dp->d_name, | |
752 | command, | |
753 | dp2->d_name, | |
754 | (rslt >= 0 ? buf : dp2->d_name)); | |
755 | } | |
756 | ||
757 | closedir (dirp2); | |
758 | } | |
759 | ||
760 | xfree (pathname); | |
761 | } | |
762 | } | |
763 | ||
764 | closedir (dirp); | |
765 | } | |
766 | ||
767 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
768 | buf = buffer_finish (&buffer); | |
769 | len_avail = strlen (buf); | |
770 | } | |
771 | ||
772 | if (offset >= len_avail) | |
773 | { | |
774 | /* Done. Get rid of the buffer. */ | |
775 | buffer_free (&buffer); | |
776 | buf = NULL; | |
777 | len_avail = 0; | |
778 | return 0; | |
779 | } | |
780 | ||
781 | if (len > len_avail - offset) | |
782 | len = len_avail - offset; | |
783 | memcpy (readbuf, buf + offset, len); | |
784 | ||
785 | return len; | |
786 | } | |
787 | ||
788 | /* Returns the socket state STATE in textual form. */ | |
789 | ||
790 | static const char * | |
791 | format_socket_state (unsigned char state) | |
792 | { | |
793 | /* Copied from include/net/tcp_states.h in the Linux kernel sources. */ | |
794 | enum { | |
795 | TCP_ESTABLISHED = 1, | |
796 | TCP_SYN_SENT, | |
797 | TCP_SYN_RECV, | |
798 | TCP_FIN_WAIT1, | |
799 | TCP_FIN_WAIT2, | |
800 | TCP_TIME_WAIT, | |
801 | TCP_CLOSE, | |
802 | TCP_CLOSE_WAIT, | |
803 | TCP_LAST_ACK, | |
804 | TCP_LISTEN, | |
805 | TCP_CLOSING | |
806 | }; | |
807 | ||
808 | switch (state) | |
809 | { | |
810 | case TCP_ESTABLISHED: | |
811 | return "ESTABLISHED"; | |
812 | case TCP_SYN_SENT: | |
813 | return "SYN_SENT"; | |
814 | case TCP_SYN_RECV: | |
815 | return "SYN_RECV"; | |
816 | case TCP_FIN_WAIT1: | |
817 | return "FIN_WAIT1"; | |
818 | case TCP_FIN_WAIT2: | |
819 | return "FIN_WAIT2"; | |
820 | case TCP_TIME_WAIT: | |
821 | return "TIME_WAIT"; | |
822 | case TCP_CLOSE: | |
823 | return "CLOSE"; | |
824 | case TCP_CLOSE_WAIT: | |
825 | return "CLOSE_WAIT"; | |
826 | case TCP_LAST_ACK: | |
827 | return "LAST_ACK"; | |
828 | case TCP_LISTEN: | |
829 | return "LISTEN"; | |
830 | case TCP_CLOSING: | |
831 | return "CLOSING"; | |
832 | default: | |
833 | return "(unknown)"; | |
834 | } | |
835 | } | |
836 | ||
837 | union socket_addr | |
838 | { | |
839 | struct sockaddr sa; | |
840 | struct sockaddr_in sin; | |
841 | struct sockaddr_in6 sin6; | |
842 | }; | |
843 | ||
844 | /* Auxiliary function used by linux_xfer_osdata_isocket. Formats | |
845 | information for all open internet sockets of type FAMILY on the | |
846 | system into BUFFER. If TCP is set, only TCP sockets are processed, | |
847 | otherwise only UDP sockets are processed. */ | |
848 | ||
849 | static void | |
850 | print_sockets (unsigned short family, int tcp, struct buffer *buffer) | |
851 | { | |
852 | const char *proc_file; | |
853 | FILE *fp; | |
854 | ||
855 | if (family == AF_INET) | |
856 | proc_file = tcp ? "/proc/net/tcp" : "/proc/net/udp"; | |
857 | else if (family == AF_INET6) | |
858 | proc_file = tcp ? "/proc/net/tcp6" : "/proc/net/udp6"; | |
859 | else | |
860 | return; | |
861 | ||
614c279d | 862 | fp = gdb_fopen_cloexec (proc_file, "r"); |
85d4a676 SS |
863 | if (fp) |
864 | { | |
865 | char buf[8192]; | |
866 | ||
867 | do | |
868 | { | |
869 | if (fgets (buf, sizeof (buf), fp)) | |
870 | { | |
871 | uid_t uid; | |
85d4a676 | 872 | unsigned int local_port, remote_port, state; |
85d4a676 | 873 | char local_address[NI_MAXHOST], remote_address[NI_MAXHOST]; |
85d4a676 SS |
874 | int result; |
875 | ||
f60db4f0 GB |
876 | #if NI_MAXHOST <= 32 |
877 | #error "local_address and remote_address buffers too small" | |
878 | #endif | |
879 | ||
85d4a676 | 880 | result = sscanf (buf, |
f60db4f0 | 881 | "%*d: %32[0-9A-F]:%X %32[0-9A-F]:%X %X %*X:%*X %*X:%*X %*X %d %*d %*u %*s\n", |
85d4a676 SS |
882 | local_address, &local_port, |
883 | remote_address, &remote_port, | |
884 | &state, | |
f60db4f0 | 885 | &uid); |
85d4a676 | 886 | |
f60db4f0 | 887 | if (result == 6) |
85d4a676 SS |
888 | { |
889 | union socket_addr locaddr, remaddr; | |
890 | size_t addr_size; | |
891 | char user[UT_NAMESIZE]; | |
892 | char local_service[NI_MAXSERV], remote_service[NI_MAXSERV]; | |
893 | ||
894 | if (family == AF_INET) | |
895 | { | |
896 | sscanf (local_address, "%X", | |
897 | &locaddr.sin.sin_addr.s_addr); | |
898 | sscanf (remote_address, "%X", | |
899 | &remaddr.sin.sin_addr.s_addr); | |
900 | ||
901 | locaddr.sin.sin_port = htons (local_port); | |
902 | remaddr.sin.sin_port = htons (remote_port); | |
903 | ||
904 | addr_size = sizeof (struct sockaddr_in); | |
905 | } | |
906 | else | |
907 | { | |
908 | sscanf (local_address, "%8X%8X%8X%8X", | |
909 | locaddr.sin6.sin6_addr.s6_addr32, | |
910 | locaddr.sin6.sin6_addr.s6_addr32 + 1, | |
911 | locaddr.sin6.sin6_addr.s6_addr32 + 2, | |
912 | locaddr.sin6.sin6_addr.s6_addr32 + 3); | |
913 | sscanf (remote_address, "%8X%8X%8X%8X", | |
914 | remaddr.sin6.sin6_addr.s6_addr32, | |
915 | remaddr.sin6.sin6_addr.s6_addr32 + 1, | |
916 | remaddr.sin6.sin6_addr.s6_addr32 + 2, | |
917 | remaddr.sin6.sin6_addr.s6_addr32 + 3); | |
918 | ||
919 | locaddr.sin6.sin6_port = htons (local_port); | |
920 | remaddr.sin6.sin6_port = htons (remote_port); | |
921 | ||
922 | locaddr.sin6.sin6_flowinfo = 0; | |
923 | remaddr.sin6.sin6_flowinfo = 0; | |
924 | locaddr.sin6.sin6_scope_id = 0; | |
925 | remaddr.sin6.sin6_scope_id = 0; | |
926 | ||
927 | addr_size = sizeof (struct sockaddr_in6); | |
928 | } | |
929 | ||
930 | locaddr.sa.sa_family = remaddr.sa.sa_family = family; | |
931 | ||
932 | result = getnameinfo (&locaddr.sa, addr_size, | |
933 | local_address, sizeof (local_address), | |
934 | local_service, sizeof (local_service), | |
935 | NI_NUMERICHOST | NI_NUMERICSERV | |
936 | | (tcp ? 0 : NI_DGRAM)); | |
937 | if (result) | |
938 | continue; | |
939 | ||
940 | result = getnameinfo (&remaddr.sa, addr_size, | |
941 | remote_address, | |
942 | sizeof (remote_address), | |
943 | remote_service, | |
944 | sizeof (remote_service), | |
945 | NI_NUMERICHOST | NI_NUMERICSERV | |
946 | | (tcp ? 0 : NI_DGRAM)); | |
947 | if (result) | |
948 | continue; | |
949 | ||
950 | user_from_uid (user, sizeof (user), uid); | |
951 | ||
952 | buffer_xml_printf ( | |
953 | buffer, | |
954 | "<item>" | |
955 | "<column name=\"local address\">%s</column>" | |
956 | "<column name=\"local port\">%s</column>" | |
957 | "<column name=\"remote address\">%s</column>" | |
958 | "<column name=\"remote port\">%s</column>" | |
959 | "<column name=\"state\">%s</column>" | |
960 | "<column name=\"user\">%s</column>" | |
961 | "<column name=\"family\">%s</column>" | |
962 | "<column name=\"protocol\">%s</column>" | |
963 | "</item>", | |
964 | local_address, | |
965 | local_service, | |
966 | remote_address, | |
967 | remote_service, | |
968 | format_socket_state (state), | |
969 | user, | |
970 | (family == AF_INET) ? "INET" : "INET6", | |
971 | tcp ? "STREAM" : "DGRAM"); | |
972 | } | |
973 | } | |
974 | } | |
975 | while (!feof (fp)); | |
976 | ||
977 | fclose (fp); | |
978 | } | |
979 | } | |
980 | ||
981 | /* Collect data about internet sockets and write it into READBUF. */ | |
982 | ||
983 | static LONGEST | |
984 | linux_xfer_osdata_isockets (gdb_byte *readbuf, | |
dea80a27 | 985 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
986 | { |
987 | static const char *buf; | |
988 | static LONGEST len_avail = -1; | |
989 | static struct buffer buffer; | |
990 | ||
991 | if (offset == 0) | |
992 | { | |
993 | if (len_avail != -1 && len_avail != 0) | |
994 | buffer_free (&buffer); | |
995 | len_avail = 0; | |
996 | buf = NULL; | |
997 | buffer_init (&buffer); | |
998 | buffer_grow_str (&buffer, "<osdata type=\"I sockets\">\n"); | |
999 | ||
1000 | print_sockets (AF_INET, 1, &buffer); | |
1001 | print_sockets (AF_INET, 0, &buffer); | |
1002 | print_sockets (AF_INET6, 1, &buffer); | |
1003 | print_sockets (AF_INET6, 0, &buffer); | |
1004 | ||
1005 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1006 | buf = buffer_finish (&buffer); | |
1007 | len_avail = strlen (buf); | |
1008 | } | |
1009 | ||
1010 | if (offset >= len_avail) | |
1011 | { | |
1012 | /* Done. Get rid of the buffer. */ | |
1013 | buffer_free (&buffer); | |
1014 | buf = NULL; | |
1015 | len_avail = 0; | |
1016 | return 0; | |
1017 | } | |
1018 | ||
1019 | if (len > len_avail - offset) | |
1020 | len = len_avail - offset; | |
1021 | memcpy (readbuf, buf + offset, len); | |
1022 | ||
1023 | return len; | |
1024 | } | |
1025 | ||
1026 | /* Converts the time SECONDS into textual form and copies it into a | |
1027 | buffer TIME, with at most MAXLEN characters copied. */ | |
1028 | ||
1029 | static void | |
1030 | time_from_time_t (char *time, int maxlen, TIME_T seconds) | |
1031 | { | |
1032 | if (!seconds) | |
1033 | time[0] = '\0'; | |
1034 | else | |
1035 | { | |
1036 | time_t t = (time_t) seconds; | |
1037 | ||
1038 | strncpy (time, ctime (&t), maxlen); | |
1039 | time[maxlen - 1] = '\0'; | |
1040 | } | |
1041 | } | |
1042 | ||
1043 | /* Finds the group name for the group GID and copies it into GROUP. | |
1044 | At most MAXLEN characters are copied. */ | |
1045 | ||
1046 | static void | |
1047 | group_from_gid (char *group, int maxlen, gid_t gid) | |
1048 | { | |
1049 | struct group *grentry = getgrgid (gid); | |
1050 | ||
1051 | if (grentry) | |
1052 | { | |
1053 | strncpy (group, grentry->gr_name, maxlen); | |
1054 | /* Ensure that the group name is null-terminated. */ | |
1055 | group[maxlen - 1] = '\0'; | |
1056 | } | |
1057 | else | |
1058 | group[0] = '\0'; | |
1059 | } | |
1060 | ||
1061 | /* Collect data about shared memory recorded in /proc and write it | |
1062 | into READBUF. */ | |
1063 | ||
1064 | static LONGEST | |
1065 | linux_xfer_osdata_shm (gdb_byte *readbuf, | |
dea80a27 | 1066 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1067 | { |
1068 | static const char *buf; | |
1069 | static LONGEST len_avail = -1; | |
1070 | static struct buffer buffer; | |
1071 | ||
1072 | if (offset == 0) | |
1073 | { | |
1074 | FILE *fp; | |
1075 | ||
1076 | if (len_avail != -1 && len_avail != 0) | |
1077 | buffer_free (&buffer); | |
1078 | len_avail = 0; | |
1079 | buf = NULL; | |
1080 | buffer_init (&buffer); | |
1081 | buffer_grow_str (&buffer, "<osdata type=\"shared memory\">\n"); | |
1082 | ||
614c279d | 1083 | fp = gdb_fopen_cloexec ("/proc/sysvipc/shm", "r"); |
85d4a676 SS |
1084 | if (fp) |
1085 | { | |
1086 | char buf[8192]; | |
1087 | ||
1088 | do | |
1089 | { | |
1090 | if (fgets (buf, sizeof (buf), fp)) | |
1091 | { | |
1092 | key_t key; | |
1093 | uid_t uid, cuid; | |
1094 | gid_t gid, cgid; | |
1095 | PID_T cpid, lpid; | |
1096 | int shmid, size, nattch; | |
1097 | TIME_T atime, dtime, ctime; | |
1098 | unsigned int perms; | |
1099 | int items_read; | |
1100 | ||
1101 | items_read = sscanf (buf, | |
1102 | "%d %d %o %d %lld %lld %d %u %u %u %u %lld %lld %lld", | |
1103 | &key, &shmid, &perms, &size, | |
1104 | &cpid, &lpid, | |
1105 | &nattch, | |
1106 | &uid, &gid, &cuid, &cgid, | |
1107 | &atime, &dtime, &ctime); | |
1108 | ||
1109 | if (items_read == 14) | |
1110 | { | |
1111 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1112 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1113 | char ccmd[32], lcmd[32]; | |
1114 | char atime_str[32], dtime_str[32], ctime_str[32]; | |
1115 | ||
1116 | user_from_uid (user, sizeof (user), uid); | |
1117 | group_from_gid (group, sizeof (group), gid); | |
1118 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1119 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1120 | ||
1121 | command_from_pid (ccmd, sizeof (ccmd), cpid); | |
1122 | command_from_pid (lcmd, sizeof (lcmd), lpid); | |
1123 | ||
1124 | time_from_time_t (atime_str, sizeof (atime_str), atime); | |
1125 | time_from_time_t (dtime_str, sizeof (dtime_str), dtime); | |
1126 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1127 | ||
1128 | buffer_xml_printf ( | |
1129 | &buffer, | |
1130 | "<item>" | |
1131 | "<column name=\"key\">%d</column>" | |
1132 | "<column name=\"shmid\">%d</column>" | |
1133 | "<column name=\"permissions\">%o</column>" | |
1134 | "<column name=\"size\">%d</column>" | |
1135 | "<column name=\"creator command\">%s</column>" | |
1136 | "<column name=\"last op. command\">%s</column>" | |
1137 | "<column name=\"num attached\">%d</column>" | |
1138 | "<column name=\"user\">%s</column>" | |
1139 | "<column name=\"group\">%s</column>" | |
1140 | "<column name=\"creator user\">%s</column>" | |
1141 | "<column name=\"creator group\">%s</column>" | |
1142 | "<column name=\"last shmat() time\">%s</column>" | |
1143 | "<column name=\"last shmdt() time\">%s</column>" | |
1144 | "<column name=\"last shmctl() time\">%s</column>" | |
1145 | "</item>", | |
1146 | key, | |
1147 | shmid, | |
1148 | perms, | |
1149 | size, | |
1150 | ccmd, | |
1151 | lcmd, | |
1152 | nattch, | |
1153 | user, | |
1154 | group, | |
1155 | cuser, | |
1156 | cgroup, | |
1157 | atime_str, | |
1158 | dtime_str, | |
1159 | ctime_str); | |
1160 | } | |
1161 | } | |
1162 | } | |
1163 | while (!feof (fp)); | |
1164 | ||
1165 | fclose (fp); | |
1166 | } | |
1167 | ||
1168 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1169 | buf = buffer_finish (&buffer); | |
1170 | len_avail = strlen (buf); | |
1171 | } | |
1172 | ||
1173 | if (offset >= len_avail) | |
1174 | { | |
1175 | /* Done. Get rid of the buffer. */ | |
1176 | buffer_free (&buffer); | |
1177 | buf = NULL; | |
1178 | len_avail = 0; | |
1179 | return 0; | |
1180 | } | |
1181 | ||
1182 | if (len > len_avail - offset) | |
1183 | len = len_avail - offset; | |
1184 | memcpy (readbuf, buf + offset, len); | |
1185 | ||
1186 | return len; | |
1187 | } | |
1188 | ||
1189 | /* Collect data about semaphores recorded in /proc and write it | |
1190 | into READBUF. */ | |
1191 | ||
1192 | static LONGEST | |
1193 | linux_xfer_osdata_sem (gdb_byte *readbuf, | |
dea80a27 | 1194 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1195 | { |
1196 | static const char *buf; | |
1197 | static LONGEST len_avail = -1; | |
1198 | static struct buffer buffer; | |
1199 | ||
1200 | if (offset == 0) | |
1201 | { | |
1202 | FILE *fp; | |
1203 | ||
1204 | if (len_avail != -1 && len_avail != 0) | |
1205 | buffer_free (&buffer); | |
1206 | len_avail = 0; | |
1207 | buf = NULL; | |
1208 | buffer_init (&buffer); | |
1209 | buffer_grow_str (&buffer, "<osdata type=\"semaphores\">\n"); | |
1210 | ||
614c279d | 1211 | fp = gdb_fopen_cloexec ("/proc/sysvipc/sem", "r"); |
85d4a676 SS |
1212 | if (fp) |
1213 | { | |
1214 | char buf[8192]; | |
1215 | ||
1216 | do | |
1217 | { | |
1218 | if (fgets (buf, sizeof (buf), fp)) | |
1219 | { | |
1220 | key_t key; | |
1221 | uid_t uid, cuid; | |
1222 | gid_t gid, cgid; | |
1223 | unsigned int perms, nsems; | |
1224 | int semid; | |
1225 | TIME_T otime, ctime; | |
1226 | int items_read; | |
1227 | ||
1228 | items_read = sscanf (buf, | |
1229 | "%d %d %o %u %d %d %d %d %lld %lld", | |
1230 | &key, &semid, &perms, &nsems, | |
1231 | &uid, &gid, &cuid, &cgid, | |
1232 | &otime, &ctime); | |
1233 | ||
1234 | if (items_read == 10) | |
1235 | { | |
1236 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1237 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1238 | char otime_str[32], ctime_str[32]; | |
1239 | ||
1240 | user_from_uid (user, sizeof (user), uid); | |
1241 | group_from_gid (group, sizeof (group), gid); | |
1242 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1243 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1244 | ||
1245 | time_from_time_t (otime_str, sizeof (otime_str), otime); | |
1246 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1247 | ||
1248 | buffer_xml_printf ( | |
1249 | &buffer, | |
1250 | "<item>" | |
1251 | "<column name=\"key\">%d</column>" | |
1252 | "<column name=\"semid\">%d</column>" | |
1253 | "<column name=\"permissions\">%o</column>" | |
1254 | "<column name=\"num semaphores\">%u</column>" | |
1255 | "<column name=\"user\">%s</column>" | |
1256 | "<column name=\"group\">%s</column>" | |
1257 | "<column name=\"creator user\">%s</column>" | |
1258 | "<column name=\"creator group\">%s</column>" | |
1259 | "<column name=\"last semop() time\">%s</column>" | |
1260 | "<column name=\"last semctl() time\">%s</column>" | |
1261 | "</item>", | |
1262 | key, | |
1263 | semid, | |
1264 | perms, | |
1265 | nsems, | |
1266 | user, | |
1267 | group, | |
1268 | cuser, | |
1269 | cgroup, | |
1270 | otime_str, | |
1271 | ctime_str); | |
1272 | } | |
1273 | } | |
1274 | } | |
1275 | while (!feof (fp)); | |
1276 | ||
1277 | fclose (fp); | |
1278 | } | |
1279 | ||
1280 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1281 | buf = buffer_finish (&buffer); | |
1282 | len_avail = strlen (buf); | |
1283 | } | |
1284 | ||
1285 | if (offset >= len_avail) | |
1286 | { | |
1287 | /* Done. Get rid of the buffer. */ | |
1288 | buffer_free (&buffer); | |
1289 | buf = NULL; | |
1290 | len_avail = 0; | |
1291 | return 0; | |
1292 | } | |
1293 | ||
1294 | if (len > len_avail - offset) | |
1295 | len = len_avail - offset; | |
1296 | memcpy (readbuf, buf + offset, len); | |
1297 | ||
1298 | return len; | |
1299 | } | |
1300 | ||
1301 | /* Collect data about message queues recorded in /proc and write it | |
1302 | into READBUF. */ | |
1303 | ||
1304 | static LONGEST | |
1305 | linux_xfer_osdata_msg (gdb_byte *readbuf, | |
dea80a27 | 1306 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1307 | { |
1308 | static const char *buf; | |
1309 | static LONGEST len_avail = -1; | |
1310 | static struct buffer buffer; | |
1311 | ||
1312 | if (offset == 0) | |
1313 | { | |
1314 | FILE *fp; | |
1315 | ||
1316 | if (len_avail != -1 && len_avail != 0) | |
1317 | buffer_free (&buffer); | |
1318 | len_avail = 0; | |
1319 | buf = NULL; | |
1320 | buffer_init (&buffer); | |
1321 | buffer_grow_str (&buffer, "<osdata type=\"message queues\">\n"); | |
1322 | ||
614c279d | 1323 | fp = gdb_fopen_cloexec ("/proc/sysvipc/msg", "r"); |
85d4a676 SS |
1324 | if (fp) |
1325 | { | |
1326 | char buf[8192]; | |
1327 | ||
1328 | do | |
1329 | { | |
1330 | if (fgets (buf, sizeof (buf), fp)) | |
1331 | { | |
1332 | key_t key; | |
1333 | PID_T lspid, lrpid; | |
1334 | uid_t uid, cuid; | |
1335 | gid_t gid, cgid; | |
1336 | unsigned int perms, cbytes, qnum; | |
1337 | int msqid; | |
1338 | TIME_T stime, rtime, ctime; | |
1339 | int items_read; | |
1340 | ||
1341 | items_read = sscanf (buf, | |
1342 | "%d %d %o %u %u %lld %lld %d %d %d %d %lld %lld %lld", | |
1343 | &key, &msqid, &perms, &cbytes, &qnum, | |
1344 | &lspid, &lrpid, &uid, &gid, &cuid, &cgid, | |
1345 | &stime, &rtime, &ctime); | |
1346 | ||
1347 | if (items_read == 14) | |
1348 | { | |
1349 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1350 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1351 | char lscmd[32], lrcmd[32]; | |
1352 | char stime_str[32], rtime_str[32], ctime_str[32]; | |
1353 | ||
1354 | user_from_uid (user, sizeof (user), uid); | |
1355 | group_from_gid (group, sizeof (group), gid); | |
1356 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1357 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1358 | ||
1359 | command_from_pid (lscmd, sizeof (lscmd), lspid); | |
1360 | command_from_pid (lrcmd, sizeof (lrcmd), lrpid); | |
1361 | ||
1362 | time_from_time_t (stime_str, sizeof (stime_str), stime); | |
1363 | time_from_time_t (rtime_str, sizeof (rtime_str), rtime); | |
1364 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1365 | ||
1366 | buffer_xml_printf ( | |
1367 | &buffer, | |
1368 | "<item>" | |
1369 | "<column name=\"key\">%d</column>" | |
1370 | "<column name=\"msqid\">%d</column>" | |
1371 | "<column name=\"permissions\">%o</column>" | |
1372 | "<column name=\"num used bytes\">%u</column>" | |
1373 | "<column name=\"num messages\">%u</column>" | |
1374 | "<column name=\"last msgsnd() command\">%s</column>" | |
1375 | "<column name=\"last msgrcv() command\">%s</column>" | |
1376 | "<column name=\"user\">%s</column>" | |
1377 | "<column name=\"group\">%s</column>" | |
1378 | "<column name=\"creator user\">%s</column>" | |
1379 | "<column name=\"creator group\">%s</column>" | |
1380 | "<column name=\"last msgsnd() time\">%s</column>" | |
1381 | "<column name=\"last msgrcv() time\">%s</column>" | |
1382 | "<column name=\"last msgctl() time\">%s</column>" | |
1383 | "</item>", | |
1384 | key, | |
1385 | msqid, | |
1386 | perms, | |
1387 | cbytes, | |
1388 | qnum, | |
1389 | lscmd, | |
1390 | lrcmd, | |
1391 | user, | |
1392 | group, | |
1393 | cuser, | |
1394 | cgroup, | |
1395 | stime_str, | |
1396 | rtime_str, | |
1397 | ctime_str); | |
1398 | } | |
1399 | } | |
1400 | } | |
1401 | while (!feof (fp)); | |
1402 | ||
1403 | fclose (fp); | |
1404 | } | |
1405 | ||
1406 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1407 | buf = buffer_finish (&buffer); | |
1408 | len_avail = strlen (buf); | |
1409 | } | |
1410 | ||
1411 | if (offset >= len_avail) | |
1412 | { | |
1413 | /* Done. Get rid of the buffer. */ | |
1414 | buffer_free (&buffer); | |
1415 | buf = NULL; | |
1416 | len_avail = 0; | |
1417 | return 0; | |
1418 | } | |
1419 | ||
1420 | if (len > len_avail - offset) | |
1421 | len = len_avail - offset; | |
1422 | memcpy (readbuf, buf + offset, len); | |
1423 | ||
1424 | return len; | |
1425 | } | |
1426 | ||
1427 | /* Collect data about loaded kernel modules and write it into | |
1428 | READBUF. */ | |
1429 | ||
1430 | static LONGEST | |
1431 | linux_xfer_osdata_modules (gdb_byte *readbuf, | |
dea80a27 | 1432 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1433 | { |
1434 | static const char *buf; | |
1435 | static LONGEST len_avail = -1; | |
1436 | static struct buffer buffer; | |
1437 | ||
1438 | if (offset == 0) | |
1439 | { | |
1440 | FILE *fp; | |
1441 | ||
1442 | if (len_avail != -1 && len_avail != 0) | |
1443 | buffer_free (&buffer); | |
1444 | len_avail = 0; | |
1445 | buf = NULL; | |
1446 | buffer_init (&buffer); | |
1447 | buffer_grow_str (&buffer, "<osdata type=\"modules\">\n"); | |
1448 | ||
614c279d | 1449 | fp = gdb_fopen_cloexec ("/proc/modules", "r"); |
85d4a676 SS |
1450 | if (fp) |
1451 | { | |
1452 | char buf[8192]; | |
1453 | ||
1454 | do | |
1455 | { | |
1456 | if (fgets (buf, sizeof (buf), fp)) | |
1457 | { | |
f60db4f0 | 1458 | char *name, *dependencies, *status, *tmp; |
85d4a676 SS |
1459 | unsigned int size; |
1460 | unsigned long long address; | |
1461 | int uses; | |
85d4a676 | 1462 | |
f60db4f0 GB |
1463 | name = strtok (buf, " "); |
1464 | if (name == NULL) | |
1465 | continue; | |
1466 | ||
1467 | tmp = strtok (NULL, " "); | |
1468 | if (tmp == NULL) | |
1469 | continue; | |
1470 | if (sscanf (tmp, "%u", &size) != 1) | |
1471 | continue; | |
1472 | ||
1473 | tmp = strtok (NULL, " "); | |
1474 | if (tmp == NULL) | |
1475 | continue; | |
1476 | if (sscanf (tmp, "%d", &uses) != 1) | |
1477 | continue; | |
1478 | ||
1479 | dependencies = strtok (NULL, " "); | |
1480 | if (dependencies == NULL) | |
1481 | continue; | |
1482 | ||
1483 | status = strtok (NULL, " "); | |
1484 | if (status == NULL) | |
1485 | continue; | |
1486 | ||
1487 | tmp = strtok (NULL, "\n"); | |
1488 | if (tmp == NULL) | |
1489 | continue; | |
1490 | if (sscanf (tmp, "%llx", &address) != 1) | |
1491 | continue; | |
1492 | ||
1493 | buffer_xml_printf ( | |
85d4a676 SS |
1494 | &buffer, |
1495 | "<item>" | |
1496 | "<column name=\"name\">%s</column>" | |
1497 | "<column name=\"size\">%u</column>" | |
1498 | "<column name=\"num uses\">%d</column>" | |
1499 | "<column name=\"dependencies\">%s</column>" | |
1500 | "<column name=\"status\">%s</column>" | |
1501 | "<column name=\"address\">%llx</column>" | |
1502 | "</item>", | |
1503 | name, | |
1504 | size, | |
1505 | uses, | |
1506 | dependencies, | |
1507 | status, | |
1508 | address); | |
1509 | } | |
1510 | } | |
1511 | while (!feof (fp)); | |
1512 | ||
1513 | fclose (fp); | |
1514 | } | |
1515 | ||
1516 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1517 | buf = buffer_finish (&buffer); | |
1518 | len_avail = strlen (buf); | |
1519 | } | |
1520 | ||
1521 | if (offset >= len_avail) | |
1522 | { | |
1523 | /* Done. Get rid of the buffer. */ | |
1524 | buffer_free (&buffer); | |
1525 | buf = NULL; | |
1526 | len_avail = 0; | |
1527 | return 0; | |
1528 | } | |
1529 | ||
1530 | if (len > len_avail - offset) | |
1531 | len = len_avail - offset; | |
1532 | memcpy (readbuf, buf + offset, len); | |
1533 | ||
1534 | return len; | |
1535 | } | |
1536 | ||
d26e3629 KY |
1537 | struct osdata_type { |
1538 | char *type; | |
71caed83 | 1539 | char *title; |
d26e3629 | 1540 | char *description; |
dea80a27 | 1541 | LONGEST (*getter) (gdb_byte *readbuf, ULONGEST offset, ULONGEST len); |
d26e3629 | 1542 | } osdata_table[] = { |
71caed83 | 1543 | { "processes", "Processes", "Listing of all processes", |
85d4a676 | 1544 | linux_xfer_osdata_processes }, |
71caed83 | 1545 | { "procgroups", "Process groups", "Listing of all process groups", |
85d4a676 | 1546 | linux_xfer_osdata_processgroups }, |
71caed83 | 1547 | { "threads", "Threads", "Listing of all threads", |
85d4a676 | 1548 | linux_xfer_osdata_threads }, |
71caed83 | 1549 | { "files", "File descriptors", "Listing of all file descriptors", |
85d4a676 | 1550 | linux_xfer_osdata_fds }, |
71caed83 | 1551 | { "sockets", "Sockets", "Listing of all internet-domain sockets", |
85d4a676 | 1552 | linux_xfer_osdata_isockets }, |
71caed83 | 1553 | { "shm", "Shared-memory regions", "Listing of all shared-memory regions", |
85d4a676 | 1554 | linux_xfer_osdata_shm }, |
71caed83 | 1555 | { "semaphores", "Semaphores", "Listing of all semaphores", |
85d4a676 | 1556 | linux_xfer_osdata_sem }, |
71caed83 | 1557 | { "msg", "Message queues", "Listing of all message queues", |
85d4a676 | 1558 | linux_xfer_osdata_msg }, |
71caed83 | 1559 | { "modules", "Kernel modules", "Listing of all loaded kernel modules", |
85d4a676 | 1560 | linux_xfer_osdata_modules }, |
d26e3629 KY |
1561 | { NULL, NULL, NULL } |
1562 | }; | |
1563 | ||
1564 | LONGEST | |
1565 | linux_common_xfer_osdata (const char *annex, gdb_byte *readbuf, | |
dea80a27 | 1566 | ULONGEST offset, ULONGEST len) |
d26e3629 KY |
1567 | { |
1568 | if (!annex || *annex == '\0') | |
1569 | { | |
1570 | static const char *buf; | |
1571 | static LONGEST len_avail = -1; | |
1572 | static struct buffer buffer; | |
1573 | ||
1574 | if (offset == 0) | |
1575 | { | |
1576 | int i; | |
1577 | ||
1578 | if (len_avail != -1 && len_avail != 0) | |
1579 | buffer_free (&buffer); | |
1580 | len_avail = 0; | |
1581 | buf = NULL; | |
1582 | buffer_init (&buffer); | |
1583 | buffer_grow_str (&buffer, "<osdata type=\"types\">\n"); | |
1584 | ||
1585 | for (i = 0; osdata_table[i].type; ++i) | |
1586 | buffer_xml_printf ( | |
1587 | &buffer, | |
1588 | "<item>" | |
1589 | "<column name=\"Type\">%s</column>" | |
1590 | "<column name=\"Description\">%s</column>" | |
71caed83 | 1591 | "<column name=\"Title\">%s</column>" |
d26e3629 KY |
1592 | "</item>", |
1593 | osdata_table[i].type, | |
71caed83 SS |
1594 | osdata_table[i].description, |
1595 | osdata_table[i].title); | |
d26e3629 KY |
1596 | |
1597 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1598 | buf = buffer_finish (&buffer); | |
1599 | len_avail = strlen (buf); | |
1600 | } | |
1601 | ||
1602 | if (offset >= len_avail) | |
1603 | { | |
1604 | /* Done. Get rid of the buffer. */ | |
1605 | buffer_free (&buffer); | |
1606 | buf = NULL; | |
1607 | len_avail = 0; | |
1608 | return 0; | |
1609 | } | |
1610 | ||
1611 | if (len > len_avail - offset) | |
1612 | len = len_avail - offset; | |
1613 | memcpy (readbuf, buf + offset, len); | |
1614 | ||
1615 | return len; | |
1616 | } | |
1617 | else | |
1618 | { | |
1619 | int i; | |
1620 | ||
1621 | for (i = 0; osdata_table[i].type; ++i) | |
1622 | { | |
1623 | if (strcmp (annex, osdata_table[i].type) == 0) | |
1624 | { | |
1625 | gdb_assert (readbuf); | |
1626 | ||
1627 | return (osdata_table[i].getter) (readbuf, offset, len); | |
1628 | } | |
1629 | } | |
1630 | ||
1631 | return 0; | |
1632 | } | |
1633 | } | |
1634 |