Commit | Line | Data |
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d26e3629 KY |
1 | /* Linux-specific functions to retrieve OS data. |
2 | ||
0b302171 | 3 | Copyright (C) 2009-2012 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> | |
29 | #include <sys/stat.h> | |
30 | #include <dirent.h> | |
31 | #include <ctype.h> | |
32 | #include <stdlib.h> | |
33 | #include <string.h> | |
34 | #include <utmp.h> | |
35 | #include <time.h> | |
36 | #include <unistd.h> | |
37 | #include <pwd.h> | |
38 | #include <grp.h> | |
39 | #include <netdb.h> | |
40 | #include <netinet/in.h> | |
41 | #include <arpa/inet.h> | |
42 | ||
43 | #include "xml-utils.h" | |
44 | #include "buffer.h" | |
45 | #include "gdb_assert.h" | |
46 | #include "gdb_dirent.h" | |
47 | ||
85d4a676 SS |
48 | /* Define PID_T to be a fixed size that is at least as large as pid_t, |
49 | so that reading pid values embedded in /proc works | |
50 | consistently. */ | |
51 | ||
52 | typedef long long PID_T; | |
53 | ||
54 | /* Define TIME_T to be at least as large as time_t, so that reading | |
55 | time values embedded in /proc works consistently. */ | |
56 | ||
57 | typedef long long TIME_T; | |
58 | ||
59 | #define MAX_PID_T_STRLEN (sizeof ("-9223372036854775808") - 1) | |
60 | ||
61 | /* Returns the CPU core that thread PTID is currently running on. */ | |
62 | ||
2e794194 JK |
63 | /* Compute and return the processor core of a given thread. */ |
64 | ||
d26e3629 KY |
65 | int |
66 | linux_common_core_of_thread (ptid_t ptid) | |
67 | { | |
85d4a676 | 68 | char filename[sizeof ("/proc//task//stat") + 2 * MAX_PID_T_STRLEN]; |
d26e3629 KY |
69 | FILE *f; |
70 | char *content = NULL; | |
71 | char *p; | |
72 | char *ts = 0; | |
73 | int content_read = 0; | |
74 | int i; | |
75 | int core; | |
76 | ||
85d4a676 SS |
77 | sprintf (filename, "/proc/%lld/task/%lld/stat", |
78 | (PID_T) ptid_get_pid (ptid), (PID_T) ptid_get_lwp (ptid)); | |
d26e3629 KY |
79 | f = fopen (filename, "r"); |
80 | if (!f) | |
81 | return -1; | |
82 | ||
83 | for (;;) | |
84 | { | |
85 | int n; | |
86 | content = xrealloc (content, content_read + 1024); | |
87 | n = fread (content + content_read, 1, 1024, f); | |
88 | content_read += n; | |
89 | if (n < 1024) | |
90 | { | |
91 | content[content_read] = '\0'; | |
92 | break; | |
93 | } | |
94 | } | |
95 | ||
96 | p = strchr (content, '('); | |
97 | ||
98 | /* Skip ")". */ | |
99 | if (p != NULL) | |
100 | p = strchr (p, ')'); | |
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); |
d26e3629 KY |
128 | FILE *fp = fopen (stat_path, "r"); |
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). */ | |
137 | char cmd[32]; | |
85d4a676 SS |
138 | PID_T stat_pid; |
139 | int items_read = fscanf (fp, "%lld %32s", &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 KY |
167 | char *commandline = NULL; |
168 | FILE *f = fopen (pathname, "r"); | |
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 SS |
257 | /* Returns the number of CPU cores found on the system. */ |
258 | ||
d26e3629 KY |
259 | static int |
260 | get_number_of_cpu_cores (void) | |
261 | { | |
262 | int cores = 0; | |
263 | FILE *f = fopen ("/proc/cpuinfo", "r"); | |
264 | ||
265 | while (!feof (f)) | |
266 | { | |
267 | char buf[512]; | |
268 | char *p = fgets (buf, sizeof (buf), f); | |
269 | ||
270 | if (p && strncmp (buf, "processor", 9) == 0) | |
271 | ++cores; | |
272 | } | |
273 | ||
274 | fclose (f); | |
275 | ||
276 | return cores; | |
277 | } | |
278 | ||
85d4a676 SS |
279 | /* Find the CPU cores used by process PID and return them in CORES. |
280 | CORES points to an array of at least get_number_of_cpu_cores () | |
281 | elements. */ | |
d26e3629 KY |
282 | |
283 | static int | |
85d4a676 | 284 | get_cores_used_by_process (PID_T pid, int *cores) |
d26e3629 | 285 | { |
85d4a676 | 286 | char taskdir[sizeof ("/proc/") + MAX_PID_T_STRLEN + sizeof ("/task") - 1]; |
d26e3629 KY |
287 | DIR *dir; |
288 | struct dirent *dp; | |
289 | int task_count = 0; | |
290 | ||
85d4a676 | 291 | sprintf (taskdir, "/proc/%lld/task", pid); |
d26e3629 | 292 | dir = opendir (taskdir); |
e5798bef | 293 | if (dir) |
d26e3629 | 294 | { |
e5798bef PA |
295 | while ((dp = readdir (dir)) != NULL) |
296 | { | |
85d4a676 | 297 | PID_T tid; |
e5798bef | 298 | int core; |
d26e3629 | 299 | |
e5798bef | 300 | if (!isdigit (dp->d_name[0]) |
85d4a676 | 301 | || NAMELEN (dp) > MAX_PID_T_STRLEN) |
e5798bef | 302 | continue; |
d26e3629 | 303 | |
85d4a676 SS |
304 | sscanf (dp->d_name, "%lld", &tid); |
305 | core = linux_common_core_of_thread (ptid_build ((pid_t) pid, | |
306 | (pid_t) tid, 0)); | |
d26e3629 | 307 | |
e5798bef PA |
308 | if (core >= 0) |
309 | { | |
310 | ++cores[core]; | |
311 | ++task_count; | |
312 | } | |
d26e3629 | 313 | } |
d26e3629 | 314 | |
e5798bef PA |
315 | closedir (dir); |
316 | } | |
d26e3629 KY |
317 | |
318 | return task_count; | |
319 | } | |
320 | ||
321 | static LONGEST | |
322 | linux_xfer_osdata_processes (gdb_byte *readbuf, | |
323 | ULONGEST offset, LONGEST len) | |
324 | { | |
325 | /* We make the process list snapshot when the object starts to be read. */ | |
326 | static const char *buf; | |
327 | static LONGEST len_avail = -1; | |
328 | static struct buffer buffer; | |
329 | ||
330 | if (offset == 0) | |
331 | { | |
332 | DIR *dirp; | |
333 | ||
334 | if (len_avail != -1 && len_avail != 0) | |
335 | buffer_free (&buffer); | |
336 | len_avail = 0; | |
337 | buf = NULL; | |
338 | buffer_init (&buffer); | |
339 | buffer_grow_str (&buffer, "<osdata type=\"processes\">\n"); | |
340 | ||
341 | dirp = opendir ("/proc"); | |
342 | if (dirp) | |
343 | { | |
344 | const int num_cores = get_number_of_cpu_cores (); | |
345 | struct dirent *dp; | |
346 | ||
347 | while ((dp = readdir (dirp)) != NULL) | |
348 | { | |
85d4a676 | 349 | PID_T pid; |
d26e3629 KY |
350 | uid_t owner; |
351 | char user[UT_NAMESIZE]; | |
352 | char *command_line; | |
353 | int *cores; | |
354 | int task_count; | |
355 | char *cores_str; | |
356 | int i; | |
357 | ||
358 | if (!isdigit (dp->d_name[0]) | |
85d4a676 | 359 | || NAMELEN (dp) > MAX_PID_T_STRLEN) |
d26e3629 KY |
360 | continue; |
361 | ||
85d4a676 | 362 | sscanf (dp->d_name, "%lld", &pid); |
d26e3629 KY |
363 | command_line = commandline_from_pid (pid); |
364 | ||
365 | if (get_process_owner (&owner, pid) == 0) | |
366 | user_from_uid (user, sizeof (user), owner); | |
367 | else | |
368 | strcpy (user, "?"); | |
369 | ||
370 | /* Find CPU cores used by the process. */ | |
371 | cores = (int *) xcalloc (num_cores, sizeof (int)); | |
372 | task_count = get_cores_used_by_process (pid, cores); | |
373 | cores_str = (char *) xcalloc (task_count, sizeof ("4294967295") + 1); | |
374 | ||
375 | for (i = 0; i < num_cores && task_count > 0; ++i) | |
376 | if (cores[i]) | |
377 | { | |
85d4a676 | 378 | char core_str[sizeof ("4294967295")]; |
d26e3629 KY |
379 | |
380 | sprintf (core_str, "%d", i); | |
381 | strcat (cores_str, core_str); | |
382 | ||
383 | task_count -= cores[i]; | |
384 | if (task_count > 0) | |
385 | strcat (cores_str, ","); | |
386 | } | |
387 | ||
388 | xfree (cores); | |
389 | ||
390 | buffer_xml_printf ( | |
391 | &buffer, | |
392 | "<item>" | |
85d4a676 | 393 | "<column name=\"pid\">%lld</column>" |
d26e3629 KY |
394 | "<column name=\"user\">%s</column>" |
395 | "<column name=\"command\">%s</column>" | |
396 | "<column name=\"cores\">%s</column>" | |
397 | "</item>", | |
398 | pid, | |
399 | user, | |
400 | command_line ? command_line : "", | |
401 | cores_str); | |
402 | ||
403 | xfree (command_line); | |
404 | xfree (cores_str); | |
405 | } | |
406 | ||
407 | closedir (dirp); | |
408 | } | |
409 | ||
410 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
411 | buf = buffer_finish (&buffer); | |
412 | len_avail = strlen (buf); | |
413 | } | |
414 | ||
415 | if (offset >= len_avail) | |
416 | { | |
417 | /* Done. Get rid of the buffer. */ | |
418 | buffer_free (&buffer); | |
419 | buf = NULL; | |
420 | len_avail = 0; | |
421 | return 0; | |
422 | } | |
423 | ||
424 | if (len > len_avail - offset) | |
425 | len = len_avail - offset; | |
426 | memcpy (readbuf, buf + offset, len); | |
427 | ||
428 | return len; | |
429 | } | |
430 | ||
85d4a676 SS |
431 | /* Auxiliary function used by qsort to sort processes by process |
432 | group. Compares two processes with ids PROCESS1 and PROCESS2. | |
433 | PROCESS1 comes before PROCESS2 if it has a lower process group id. | |
434 | If they belong to the same process group, PROCESS1 comes before | |
435 | PROCESS2 if it has a lower process id or is the process group | |
436 | leader. */ | |
437 | ||
438 | static int | |
439 | compare_processes (const void *process1, const void *process2) | |
440 | { | |
441 | PID_T pid1 = *((PID_T *) process1); | |
442 | PID_T pid2 = *((PID_T *) process2); | |
443 | PID_T pgid1 = *((PID_T *) process1 + 1); | |
444 | PID_T pgid2 = *((PID_T *) process2 + 1); | |
445 | ||
446 | /* Sort by PGID. */ | |
447 | if (pgid1 < pgid2) | |
448 | return -1; | |
449 | else if (pgid1 > pgid2) | |
450 | return 1; | |
451 | else | |
452 | { | |
453 | /* Process group leaders always come first, else sort by PID. */ | |
454 | if (pid1 == pgid1) | |
455 | return -1; | |
456 | else if (pid2 == pgid2) | |
457 | return 1; | |
458 | else if (pid1 < pid2) | |
459 | return -1; | |
460 | else if (pid1 > pid2) | |
461 | return 1; | |
462 | else | |
463 | return 0; | |
464 | } | |
465 | } | |
466 | ||
467 | /* Collect all process groups from /proc. */ | |
468 | ||
469 | static LONGEST | |
470 | linux_xfer_osdata_processgroups (gdb_byte *readbuf, | |
471 | ULONGEST offset, LONGEST len) | |
472 | { | |
473 | /* We make the process list snapshot when the object starts to be read. */ | |
474 | static const char *buf; | |
475 | static LONGEST len_avail = -1; | |
476 | static struct buffer buffer; | |
477 | ||
478 | if (offset == 0) | |
479 | { | |
480 | DIR *dirp; | |
481 | ||
482 | if (len_avail != -1 && len_avail != 0) | |
483 | buffer_free (&buffer); | |
484 | len_avail = 0; | |
485 | buf = NULL; | |
486 | buffer_init (&buffer); | |
487 | buffer_grow_str (&buffer, "<osdata type=\"process groups\">\n"); | |
488 | ||
489 | dirp = opendir ("/proc"); | |
490 | if (dirp) | |
491 | { | |
492 | struct dirent *dp; | |
493 | const size_t list_block_size = 512; | |
494 | PID_T *process_list = (PID_T *) xmalloc (list_block_size * 2 * sizeof (PID_T)); | |
495 | size_t process_count = 0; | |
496 | size_t i; | |
497 | ||
498 | /* Build list consisting of PIDs followed by their | |
499 | associated PGID. */ | |
500 | while ((dp = readdir (dirp)) != NULL) | |
501 | { | |
502 | PID_T pid, pgid; | |
503 | ||
504 | if (!isdigit (dp->d_name[0]) | |
505 | || NAMELEN (dp) > MAX_PID_T_STRLEN) | |
506 | continue; | |
507 | ||
508 | sscanf (dp->d_name, "%lld", &pid); | |
509 | pgid = getpgid (pid); | |
510 | ||
511 | if (pgid > 0) | |
512 | { | |
513 | process_list[2 * process_count] = pid; | |
514 | process_list[2 * process_count + 1] = pgid; | |
515 | ++process_count; | |
516 | ||
517 | /* Increase the size of the list if necessary. */ | |
518 | if (process_count % list_block_size == 0) | |
519 | process_list = (PID_T *) xrealloc ( | |
520 | process_list, | |
521 | (process_count + list_block_size) | |
522 | * 2 * sizeof (PID_T)); | |
523 | } | |
524 | } | |
525 | ||
526 | closedir (dirp); | |
527 | ||
528 | /* Sort the process list. */ | |
529 | qsort (process_list, process_count, 2 * sizeof (PID_T), | |
530 | compare_processes); | |
531 | ||
532 | for (i = 0; i < process_count; ++i) | |
533 | { | |
534 | PID_T pid = process_list[2 * i]; | |
535 | PID_T pgid = process_list[2 * i + 1]; | |
536 | char leader_command[32]; | |
537 | char *command_line; | |
538 | ||
539 | command_from_pid (leader_command, sizeof (leader_command), pgid); | |
540 | command_line = commandline_from_pid (pid); | |
541 | ||
542 | buffer_xml_printf ( | |
543 | &buffer, | |
544 | "<item>" | |
545 | "<column name=\"pgid\">%lld</column>" | |
546 | "<column name=\"leader command\">%s</column>" | |
547 | "<column name=\"pid\">%lld</column>" | |
548 | "<column name=\"command line\">%s</column>" | |
549 | "</item>", | |
550 | pgid, | |
551 | leader_command, | |
552 | pid, | |
553 | command_line ? command_line : ""); | |
554 | ||
555 | xfree (command_line); | |
556 | } | |
557 | ||
558 | xfree (process_list); | |
559 | } | |
560 | ||
561 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
562 | buf = buffer_finish (&buffer); | |
563 | len_avail = strlen (buf); | |
564 | } | |
565 | ||
566 | if (offset >= len_avail) | |
567 | { | |
568 | /* Done. Get rid of the buffer. */ | |
569 | buffer_free (&buffer); | |
570 | buf = NULL; | |
571 | len_avail = 0; | |
572 | return 0; | |
573 | } | |
574 | ||
575 | if (len > len_avail - offset) | |
576 | len = len_avail - offset; | |
577 | memcpy (readbuf, buf + offset, len); | |
578 | ||
579 | return len; | |
580 | } | |
581 | ||
582 | /* Collect all the threads in /proc by iterating through processes and | |
583 | then tasks within each process. */ | |
584 | ||
d26e3629 KY |
585 | static LONGEST |
586 | linux_xfer_osdata_threads (gdb_byte *readbuf, | |
587 | ULONGEST offset, LONGEST len) | |
588 | { | |
589 | /* We make the process list snapshot when the object starts to be read. */ | |
590 | static const char *buf; | |
591 | static LONGEST len_avail = -1; | |
592 | static struct buffer buffer; | |
593 | ||
594 | if (offset == 0) | |
595 | { | |
596 | DIR *dirp; | |
597 | ||
598 | if (len_avail != -1 && len_avail != 0) | |
599 | buffer_free (&buffer); | |
600 | len_avail = 0; | |
601 | buf = NULL; | |
602 | buffer_init (&buffer); | |
603 | buffer_grow_str (&buffer, "<osdata type=\"threads\">\n"); | |
604 | ||
605 | dirp = opendir ("/proc"); | |
606 | if (dirp) | |
607 | { | |
608 | struct dirent *dp; | |
609 | ||
610 | while ((dp = readdir (dirp)) != NULL) | |
611 | { | |
612 | struct stat statbuf; | |
613 | char procentry[sizeof ("/proc/4294967295")]; | |
614 | ||
615 | if (!isdigit (dp->d_name[0]) | |
616 | || NAMELEN (dp) > sizeof ("4294967295") - 1) | |
617 | continue; | |
618 | ||
619 | sprintf (procentry, "/proc/%s", dp->d_name); | |
620 | if (stat (procentry, &statbuf) == 0 | |
621 | && S_ISDIR (statbuf.st_mode)) | |
622 | { | |
623 | DIR *dirp2; | |
624 | char *pathname; | |
85d4a676 | 625 | PID_T pid; |
d26e3629 KY |
626 | char command[32]; |
627 | ||
628 | pathname = xstrprintf ("/proc/%s/task", dp->d_name); | |
629 | ||
630 | pid = atoi (dp->d_name); | |
631 | command_from_pid (command, sizeof (command), pid); | |
632 | ||
633 | dirp2 = opendir (pathname); | |
634 | ||
635 | if (dirp2) | |
636 | { | |
637 | struct dirent *dp2; | |
638 | ||
639 | while ((dp2 = readdir (dirp2)) != NULL) | |
640 | { | |
85d4a676 | 641 | PID_T tid; |
d26e3629 KY |
642 | int core; |
643 | ||
644 | if (!isdigit (dp2->d_name[0]) | |
645 | || NAMELEN (dp2) > sizeof ("4294967295") - 1) | |
646 | continue; | |
647 | ||
648 | tid = atoi (dp2->d_name); | |
649 | core = linux_common_core_of_thread (ptid_build (pid, tid, 0)); | |
650 | ||
651 | buffer_xml_printf ( | |
652 | &buffer, | |
653 | "<item>" | |
85d4a676 | 654 | "<column name=\"pid\">%lld</column>" |
d26e3629 | 655 | "<column name=\"command\">%s</column>" |
85d4a676 | 656 | "<column name=\"tid\">%lld</column>" |
d26e3629 KY |
657 | "<column name=\"core\">%d</column>" |
658 | "</item>", | |
659 | pid, | |
660 | command, | |
661 | tid, | |
662 | core); | |
663 | } | |
664 | ||
665 | closedir (dirp2); | |
666 | } | |
667 | ||
668 | xfree (pathname); | |
669 | } | |
670 | } | |
671 | ||
672 | closedir (dirp); | |
673 | } | |
674 | ||
675 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
676 | buf = buffer_finish (&buffer); | |
677 | len_avail = strlen (buf); | |
678 | } | |
679 | ||
680 | if (offset >= len_avail) | |
681 | { | |
682 | /* Done. Get rid of the buffer. */ | |
683 | buffer_free (&buffer); | |
684 | buf = NULL; | |
685 | len_avail = 0; | |
686 | return 0; | |
687 | } | |
688 | ||
689 | if (len > len_avail - offset) | |
690 | len = len_avail - offset; | |
691 | memcpy (readbuf, buf + offset, len); | |
692 | ||
693 | return len; | |
694 | } | |
695 | ||
85d4a676 SS |
696 | /* Collect all the open file descriptors found in /proc and put the details |
697 | found about them into READBUF. */ | |
698 | ||
699 | static LONGEST | |
700 | linux_xfer_osdata_fds (gdb_byte *readbuf, | |
701 | ULONGEST offset, LONGEST len) | |
702 | { | |
703 | /* We make the process list snapshot when the object starts to be read. */ | |
704 | static const char *buf; | |
705 | static LONGEST len_avail = -1; | |
706 | static struct buffer buffer; | |
707 | ||
708 | if (offset == 0) | |
709 | { | |
710 | DIR *dirp; | |
711 | ||
712 | if (len_avail != -1 && len_avail != 0) | |
713 | buffer_free (&buffer); | |
714 | len_avail = 0; | |
715 | buf = NULL; | |
716 | buffer_init (&buffer); | |
717 | buffer_grow_str (&buffer, "<osdata type=\"files\">\n"); | |
718 | ||
719 | dirp = opendir ("/proc"); | |
720 | if (dirp) | |
721 | { | |
722 | struct dirent *dp; | |
723 | ||
724 | while ((dp = readdir (dirp)) != NULL) | |
725 | { | |
726 | struct stat statbuf; | |
727 | char procentry[sizeof ("/proc/4294967295")]; | |
728 | ||
729 | if (!isdigit (dp->d_name[0]) | |
730 | || NAMELEN (dp) > sizeof ("4294967295") - 1) | |
731 | continue; | |
732 | ||
733 | sprintf (procentry, "/proc/%s", dp->d_name); | |
734 | if (stat (procentry, &statbuf) == 0 | |
735 | && S_ISDIR (statbuf.st_mode)) | |
736 | { | |
737 | char *pathname; | |
738 | DIR *dirp2; | |
739 | PID_T pid; | |
740 | char command[32]; | |
741 | ||
742 | pid = atoi (dp->d_name); | |
743 | command_from_pid (command, sizeof (command), pid); | |
744 | ||
745 | pathname = xstrprintf ("/proc/%s/fd", dp->d_name); | |
746 | dirp2 = opendir (pathname); | |
747 | ||
748 | if (dirp2) | |
749 | { | |
750 | struct dirent *dp2; | |
751 | ||
752 | while ((dp2 = readdir (dirp2)) != NULL) | |
753 | { | |
754 | char *fdname; | |
755 | char buf[1000]; | |
756 | ssize_t rslt; | |
757 | ||
758 | if (!isdigit (dp2->d_name[0])) | |
759 | continue; | |
760 | ||
761 | fdname = xstrprintf ("%s/%s", pathname, dp2->d_name); | |
762 | rslt = readlink (fdname, buf, 1000); | |
763 | if (rslt >= 0) | |
764 | buf[rslt] = '\0'; | |
765 | ||
766 | buffer_xml_printf ( | |
767 | &buffer, | |
768 | "<item>" | |
769 | "<column name=\"pid\">%s</column>" | |
770 | "<column name=\"command\">%s</column>" | |
771 | "<column name=\"file descriptor\">%s</column>" | |
772 | "<column name=\"name\">%s</column>" | |
773 | "</item>", | |
774 | dp->d_name, | |
775 | command, | |
776 | dp2->d_name, | |
777 | (rslt >= 0 ? buf : dp2->d_name)); | |
778 | } | |
779 | ||
780 | closedir (dirp2); | |
781 | } | |
782 | ||
783 | xfree (pathname); | |
784 | } | |
785 | } | |
786 | ||
787 | closedir (dirp); | |
788 | } | |
789 | ||
790 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
791 | buf = buffer_finish (&buffer); | |
792 | len_avail = strlen (buf); | |
793 | } | |
794 | ||
795 | if (offset >= len_avail) | |
796 | { | |
797 | /* Done. Get rid of the buffer. */ | |
798 | buffer_free (&buffer); | |
799 | buf = NULL; | |
800 | len_avail = 0; | |
801 | return 0; | |
802 | } | |
803 | ||
804 | if (len > len_avail - offset) | |
805 | len = len_avail - offset; | |
806 | memcpy (readbuf, buf + offset, len); | |
807 | ||
808 | return len; | |
809 | } | |
810 | ||
811 | /* Returns the socket state STATE in textual form. */ | |
812 | ||
813 | static const char * | |
814 | format_socket_state (unsigned char state) | |
815 | { | |
816 | /* Copied from include/net/tcp_states.h in the Linux kernel sources. */ | |
817 | enum { | |
818 | TCP_ESTABLISHED = 1, | |
819 | TCP_SYN_SENT, | |
820 | TCP_SYN_RECV, | |
821 | TCP_FIN_WAIT1, | |
822 | TCP_FIN_WAIT2, | |
823 | TCP_TIME_WAIT, | |
824 | TCP_CLOSE, | |
825 | TCP_CLOSE_WAIT, | |
826 | TCP_LAST_ACK, | |
827 | TCP_LISTEN, | |
828 | TCP_CLOSING | |
829 | }; | |
830 | ||
831 | switch (state) | |
832 | { | |
833 | case TCP_ESTABLISHED: | |
834 | return "ESTABLISHED"; | |
835 | case TCP_SYN_SENT: | |
836 | return "SYN_SENT"; | |
837 | case TCP_SYN_RECV: | |
838 | return "SYN_RECV"; | |
839 | case TCP_FIN_WAIT1: | |
840 | return "FIN_WAIT1"; | |
841 | case TCP_FIN_WAIT2: | |
842 | return "FIN_WAIT2"; | |
843 | case TCP_TIME_WAIT: | |
844 | return "TIME_WAIT"; | |
845 | case TCP_CLOSE: | |
846 | return "CLOSE"; | |
847 | case TCP_CLOSE_WAIT: | |
848 | return "CLOSE_WAIT"; | |
849 | case TCP_LAST_ACK: | |
850 | return "LAST_ACK"; | |
851 | case TCP_LISTEN: | |
852 | return "LISTEN"; | |
853 | case TCP_CLOSING: | |
854 | return "CLOSING"; | |
855 | default: | |
856 | return "(unknown)"; | |
857 | } | |
858 | } | |
859 | ||
860 | union socket_addr | |
861 | { | |
862 | struct sockaddr sa; | |
863 | struct sockaddr_in sin; | |
864 | struct sockaddr_in6 sin6; | |
865 | }; | |
866 | ||
867 | /* Auxiliary function used by linux_xfer_osdata_isocket. Formats | |
868 | information for all open internet sockets of type FAMILY on the | |
869 | system into BUFFER. If TCP is set, only TCP sockets are processed, | |
870 | otherwise only UDP sockets are processed. */ | |
871 | ||
872 | static void | |
873 | print_sockets (unsigned short family, int tcp, struct buffer *buffer) | |
874 | { | |
875 | const char *proc_file; | |
876 | FILE *fp; | |
877 | ||
878 | if (family == AF_INET) | |
879 | proc_file = tcp ? "/proc/net/tcp" : "/proc/net/udp"; | |
880 | else if (family == AF_INET6) | |
881 | proc_file = tcp ? "/proc/net/tcp6" : "/proc/net/udp6"; | |
882 | else | |
883 | return; | |
884 | ||
885 | fp = fopen (proc_file, "r"); | |
886 | if (fp) | |
887 | { | |
888 | char buf[8192]; | |
889 | ||
890 | do | |
891 | { | |
892 | if (fgets (buf, sizeof (buf), fp)) | |
893 | { | |
894 | uid_t uid; | |
895 | unsigned long tlen, inode; | |
896 | int sl, timeout; | |
897 | unsigned int local_port, remote_port, state; | |
898 | unsigned int txq, rxq, trun, retn; | |
899 | char local_address[NI_MAXHOST], remote_address[NI_MAXHOST]; | |
900 | char extra[512]; | |
901 | int result; | |
902 | ||
903 | result = sscanf (buf, | |
904 | "%d: %33[0-9A-F]:%X %33[0-9A-F]:%X %X %X:%X %X:%lX %X %d %d %lu %512s\n", | |
905 | &sl, | |
906 | local_address, &local_port, | |
907 | remote_address, &remote_port, | |
908 | &state, | |
909 | &txq, &rxq, | |
910 | &trun, &tlen, | |
911 | &retn, | |
912 | &uid, | |
913 | &timeout, | |
914 | &inode, | |
915 | extra); | |
916 | ||
917 | if (result == 15) | |
918 | { | |
919 | union socket_addr locaddr, remaddr; | |
920 | size_t addr_size; | |
921 | char user[UT_NAMESIZE]; | |
922 | char local_service[NI_MAXSERV], remote_service[NI_MAXSERV]; | |
923 | ||
924 | if (family == AF_INET) | |
925 | { | |
926 | sscanf (local_address, "%X", | |
927 | &locaddr.sin.sin_addr.s_addr); | |
928 | sscanf (remote_address, "%X", | |
929 | &remaddr.sin.sin_addr.s_addr); | |
930 | ||
931 | locaddr.sin.sin_port = htons (local_port); | |
932 | remaddr.sin.sin_port = htons (remote_port); | |
933 | ||
934 | addr_size = sizeof (struct sockaddr_in); | |
935 | } | |
936 | else | |
937 | { | |
938 | sscanf (local_address, "%8X%8X%8X%8X", | |
939 | locaddr.sin6.sin6_addr.s6_addr32, | |
940 | locaddr.sin6.sin6_addr.s6_addr32 + 1, | |
941 | locaddr.sin6.sin6_addr.s6_addr32 + 2, | |
942 | locaddr.sin6.sin6_addr.s6_addr32 + 3); | |
943 | sscanf (remote_address, "%8X%8X%8X%8X", | |
944 | remaddr.sin6.sin6_addr.s6_addr32, | |
945 | remaddr.sin6.sin6_addr.s6_addr32 + 1, | |
946 | remaddr.sin6.sin6_addr.s6_addr32 + 2, | |
947 | remaddr.sin6.sin6_addr.s6_addr32 + 3); | |
948 | ||
949 | locaddr.sin6.sin6_port = htons (local_port); | |
950 | remaddr.sin6.sin6_port = htons (remote_port); | |
951 | ||
952 | locaddr.sin6.sin6_flowinfo = 0; | |
953 | remaddr.sin6.sin6_flowinfo = 0; | |
954 | locaddr.sin6.sin6_scope_id = 0; | |
955 | remaddr.sin6.sin6_scope_id = 0; | |
956 | ||
957 | addr_size = sizeof (struct sockaddr_in6); | |
958 | } | |
959 | ||
960 | locaddr.sa.sa_family = remaddr.sa.sa_family = family; | |
961 | ||
962 | result = getnameinfo (&locaddr.sa, addr_size, | |
963 | local_address, sizeof (local_address), | |
964 | local_service, sizeof (local_service), | |
965 | NI_NUMERICHOST | NI_NUMERICSERV | |
966 | | (tcp ? 0 : NI_DGRAM)); | |
967 | if (result) | |
968 | continue; | |
969 | ||
970 | result = getnameinfo (&remaddr.sa, addr_size, | |
971 | remote_address, | |
972 | sizeof (remote_address), | |
973 | remote_service, | |
974 | sizeof (remote_service), | |
975 | NI_NUMERICHOST | NI_NUMERICSERV | |
976 | | (tcp ? 0 : NI_DGRAM)); | |
977 | if (result) | |
978 | continue; | |
979 | ||
980 | user_from_uid (user, sizeof (user), uid); | |
981 | ||
982 | buffer_xml_printf ( | |
983 | buffer, | |
984 | "<item>" | |
985 | "<column name=\"local address\">%s</column>" | |
986 | "<column name=\"local port\">%s</column>" | |
987 | "<column name=\"remote address\">%s</column>" | |
988 | "<column name=\"remote port\">%s</column>" | |
989 | "<column name=\"state\">%s</column>" | |
990 | "<column name=\"user\">%s</column>" | |
991 | "<column name=\"family\">%s</column>" | |
992 | "<column name=\"protocol\">%s</column>" | |
993 | "</item>", | |
994 | local_address, | |
995 | local_service, | |
996 | remote_address, | |
997 | remote_service, | |
998 | format_socket_state (state), | |
999 | user, | |
1000 | (family == AF_INET) ? "INET" : "INET6", | |
1001 | tcp ? "STREAM" : "DGRAM"); | |
1002 | } | |
1003 | } | |
1004 | } | |
1005 | while (!feof (fp)); | |
1006 | ||
1007 | fclose (fp); | |
1008 | } | |
1009 | } | |
1010 | ||
1011 | /* Collect data about internet sockets and write it into READBUF. */ | |
1012 | ||
1013 | static LONGEST | |
1014 | linux_xfer_osdata_isockets (gdb_byte *readbuf, | |
1015 | ULONGEST offset, LONGEST len) | |
1016 | { | |
1017 | static const char *buf; | |
1018 | static LONGEST len_avail = -1; | |
1019 | static struct buffer buffer; | |
1020 | ||
1021 | if (offset == 0) | |
1022 | { | |
1023 | if (len_avail != -1 && len_avail != 0) | |
1024 | buffer_free (&buffer); | |
1025 | len_avail = 0; | |
1026 | buf = NULL; | |
1027 | buffer_init (&buffer); | |
1028 | buffer_grow_str (&buffer, "<osdata type=\"I sockets\">\n"); | |
1029 | ||
1030 | print_sockets (AF_INET, 1, &buffer); | |
1031 | print_sockets (AF_INET, 0, &buffer); | |
1032 | print_sockets (AF_INET6, 1, &buffer); | |
1033 | print_sockets (AF_INET6, 0, &buffer); | |
1034 | ||
1035 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1036 | buf = buffer_finish (&buffer); | |
1037 | len_avail = strlen (buf); | |
1038 | } | |
1039 | ||
1040 | if (offset >= len_avail) | |
1041 | { | |
1042 | /* Done. Get rid of the buffer. */ | |
1043 | buffer_free (&buffer); | |
1044 | buf = NULL; | |
1045 | len_avail = 0; | |
1046 | return 0; | |
1047 | } | |
1048 | ||
1049 | if (len > len_avail - offset) | |
1050 | len = len_avail - offset; | |
1051 | memcpy (readbuf, buf + offset, len); | |
1052 | ||
1053 | return len; | |
1054 | } | |
1055 | ||
1056 | /* Converts the time SECONDS into textual form and copies it into a | |
1057 | buffer TIME, with at most MAXLEN characters copied. */ | |
1058 | ||
1059 | static void | |
1060 | time_from_time_t (char *time, int maxlen, TIME_T seconds) | |
1061 | { | |
1062 | if (!seconds) | |
1063 | time[0] = '\0'; | |
1064 | else | |
1065 | { | |
1066 | time_t t = (time_t) seconds; | |
1067 | ||
1068 | strncpy (time, ctime (&t), maxlen); | |
1069 | time[maxlen - 1] = '\0'; | |
1070 | } | |
1071 | } | |
1072 | ||
1073 | /* Finds the group name for the group GID and copies it into GROUP. | |
1074 | At most MAXLEN characters are copied. */ | |
1075 | ||
1076 | static void | |
1077 | group_from_gid (char *group, int maxlen, gid_t gid) | |
1078 | { | |
1079 | struct group *grentry = getgrgid (gid); | |
1080 | ||
1081 | if (grentry) | |
1082 | { | |
1083 | strncpy (group, grentry->gr_name, maxlen); | |
1084 | /* Ensure that the group name is null-terminated. */ | |
1085 | group[maxlen - 1] = '\0'; | |
1086 | } | |
1087 | else | |
1088 | group[0] = '\0'; | |
1089 | } | |
1090 | ||
1091 | /* Collect data about shared memory recorded in /proc and write it | |
1092 | into READBUF. */ | |
1093 | ||
1094 | static LONGEST | |
1095 | linux_xfer_osdata_shm (gdb_byte *readbuf, | |
1096 | ULONGEST offset, LONGEST len) | |
1097 | { | |
1098 | static const char *buf; | |
1099 | static LONGEST len_avail = -1; | |
1100 | static struct buffer buffer; | |
1101 | ||
1102 | if (offset == 0) | |
1103 | { | |
1104 | FILE *fp; | |
1105 | ||
1106 | if (len_avail != -1 && len_avail != 0) | |
1107 | buffer_free (&buffer); | |
1108 | len_avail = 0; | |
1109 | buf = NULL; | |
1110 | buffer_init (&buffer); | |
1111 | buffer_grow_str (&buffer, "<osdata type=\"shared memory\">\n"); | |
1112 | ||
1113 | fp = fopen ("/proc/sysvipc/shm", "r"); | |
1114 | if (fp) | |
1115 | { | |
1116 | char buf[8192]; | |
1117 | ||
1118 | do | |
1119 | { | |
1120 | if (fgets (buf, sizeof (buf), fp)) | |
1121 | { | |
1122 | key_t key; | |
1123 | uid_t uid, cuid; | |
1124 | gid_t gid, cgid; | |
1125 | PID_T cpid, lpid; | |
1126 | int shmid, size, nattch; | |
1127 | TIME_T atime, dtime, ctime; | |
1128 | unsigned int perms; | |
1129 | int items_read; | |
1130 | ||
1131 | items_read = sscanf (buf, | |
1132 | "%d %d %o %d %lld %lld %d %u %u %u %u %lld %lld %lld", | |
1133 | &key, &shmid, &perms, &size, | |
1134 | &cpid, &lpid, | |
1135 | &nattch, | |
1136 | &uid, &gid, &cuid, &cgid, | |
1137 | &atime, &dtime, &ctime); | |
1138 | ||
1139 | if (items_read == 14) | |
1140 | { | |
1141 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1142 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1143 | char ccmd[32], lcmd[32]; | |
1144 | char atime_str[32], dtime_str[32], ctime_str[32]; | |
1145 | ||
1146 | user_from_uid (user, sizeof (user), uid); | |
1147 | group_from_gid (group, sizeof (group), gid); | |
1148 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1149 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1150 | ||
1151 | command_from_pid (ccmd, sizeof (ccmd), cpid); | |
1152 | command_from_pid (lcmd, sizeof (lcmd), lpid); | |
1153 | ||
1154 | time_from_time_t (atime_str, sizeof (atime_str), atime); | |
1155 | time_from_time_t (dtime_str, sizeof (dtime_str), dtime); | |
1156 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1157 | ||
1158 | buffer_xml_printf ( | |
1159 | &buffer, | |
1160 | "<item>" | |
1161 | "<column name=\"key\">%d</column>" | |
1162 | "<column name=\"shmid\">%d</column>" | |
1163 | "<column name=\"permissions\">%o</column>" | |
1164 | "<column name=\"size\">%d</column>" | |
1165 | "<column name=\"creator command\">%s</column>" | |
1166 | "<column name=\"last op. command\">%s</column>" | |
1167 | "<column name=\"num attached\">%d</column>" | |
1168 | "<column name=\"user\">%s</column>" | |
1169 | "<column name=\"group\">%s</column>" | |
1170 | "<column name=\"creator user\">%s</column>" | |
1171 | "<column name=\"creator group\">%s</column>" | |
1172 | "<column name=\"last shmat() time\">%s</column>" | |
1173 | "<column name=\"last shmdt() time\">%s</column>" | |
1174 | "<column name=\"last shmctl() time\">%s</column>" | |
1175 | "</item>", | |
1176 | key, | |
1177 | shmid, | |
1178 | perms, | |
1179 | size, | |
1180 | ccmd, | |
1181 | lcmd, | |
1182 | nattch, | |
1183 | user, | |
1184 | group, | |
1185 | cuser, | |
1186 | cgroup, | |
1187 | atime_str, | |
1188 | dtime_str, | |
1189 | ctime_str); | |
1190 | } | |
1191 | } | |
1192 | } | |
1193 | while (!feof (fp)); | |
1194 | ||
1195 | fclose (fp); | |
1196 | } | |
1197 | ||
1198 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1199 | buf = buffer_finish (&buffer); | |
1200 | len_avail = strlen (buf); | |
1201 | } | |
1202 | ||
1203 | if (offset >= len_avail) | |
1204 | { | |
1205 | /* Done. Get rid of the buffer. */ | |
1206 | buffer_free (&buffer); | |
1207 | buf = NULL; | |
1208 | len_avail = 0; | |
1209 | return 0; | |
1210 | } | |
1211 | ||
1212 | if (len > len_avail - offset) | |
1213 | len = len_avail - offset; | |
1214 | memcpy (readbuf, buf + offset, len); | |
1215 | ||
1216 | return len; | |
1217 | } | |
1218 | ||
1219 | /* Collect data about semaphores recorded in /proc and write it | |
1220 | into READBUF. */ | |
1221 | ||
1222 | static LONGEST | |
1223 | linux_xfer_osdata_sem (gdb_byte *readbuf, | |
1224 | ULONGEST offset, LONGEST len) | |
1225 | { | |
1226 | static const char *buf; | |
1227 | static LONGEST len_avail = -1; | |
1228 | static struct buffer buffer; | |
1229 | ||
1230 | if (offset == 0) | |
1231 | { | |
1232 | FILE *fp; | |
1233 | ||
1234 | if (len_avail != -1 && len_avail != 0) | |
1235 | buffer_free (&buffer); | |
1236 | len_avail = 0; | |
1237 | buf = NULL; | |
1238 | buffer_init (&buffer); | |
1239 | buffer_grow_str (&buffer, "<osdata type=\"semaphores\">\n"); | |
1240 | ||
1241 | fp = fopen ("/proc/sysvipc/sem", "r"); | |
1242 | if (fp) | |
1243 | { | |
1244 | char buf[8192]; | |
1245 | ||
1246 | do | |
1247 | { | |
1248 | if (fgets (buf, sizeof (buf), fp)) | |
1249 | { | |
1250 | key_t key; | |
1251 | uid_t uid, cuid; | |
1252 | gid_t gid, cgid; | |
1253 | unsigned int perms, nsems; | |
1254 | int semid; | |
1255 | TIME_T otime, ctime; | |
1256 | int items_read; | |
1257 | ||
1258 | items_read = sscanf (buf, | |
1259 | "%d %d %o %u %d %d %d %d %lld %lld", | |
1260 | &key, &semid, &perms, &nsems, | |
1261 | &uid, &gid, &cuid, &cgid, | |
1262 | &otime, &ctime); | |
1263 | ||
1264 | if (items_read == 10) | |
1265 | { | |
1266 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1267 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1268 | char otime_str[32], ctime_str[32]; | |
1269 | ||
1270 | user_from_uid (user, sizeof (user), uid); | |
1271 | group_from_gid (group, sizeof (group), gid); | |
1272 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1273 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1274 | ||
1275 | time_from_time_t (otime_str, sizeof (otime_str), otime); | |
1276 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1277 | ||
1278 | buffer_xml_printf ( | |
1279 | &buffer, | |
1280 | "<item>" | |
1281 | "<column name=\"key\">%d</column>" | |
1282 | "<column name=\"semid\">%d</column>" | |
1283 | "<column name=\"permissions\">%o</column>" | |
1284 | "<column name=\"num semaphores\">%u</column>" | |
1285 | "<column name=\"user\">%s</column>" | |
1286 | "<column name=\"group\">%s</column>" | |
1287 | "<column name=\"creator user\">%s</column>" | |
1288 | "<column name=\"creator group\">%s</column>" | |
1289 | "<column name=\"last semop() time\">%s</column>" | |
1290 | "<column name=\"last semctl() time\">%s</column>" | |
1291 | "</item>", | |
1292 | key, | |
1293 | semid, | |
1294 | perms, | |
1295 | nsems, | |
1296 | user, | |
1297 | group, | |
1298 | cuser, | |
1299 | cgroup, | |
1300 | otime_str, | |
1301 | ctime_str); | |
1302 | } | |
1303 | } | |
1304 | } | |
1305 | while (!feof (fp)); | |
1306 | ||
1307 | fclose (fp); | |
1308 | } | |
1309 | ||
1310 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1311 | buf = buffer_finish (&buffer); | |
1312 | len_avail = strlen (buf); | |
1313 | } | |
1314 | ||
1315 | if (offset >= len_avail) | |
1316 | { | |
1317 | /* Done. Get rid of the buffer. */ | |
1318 | buffer_free (&buffer); | |
1319 | buf = NULL; | |
1320 | len_avail = 0; | |
1321 | return 0; | |
1322 | } | |
1323 | ||
1324 | if (len > len_avail - offset) | |
1325 | len = len_avail - offset; | |
1326 | memcpy (readbuf, buf + offset, len); | |
1327 | ||
1328 | return len; | |
1329 | } | |
1330 | ||
1331 | /* Collect data about message queues recorded in /proc and write it | |
1332 | into READBUF. */ | |
1333 | ||
1334 | static LONGEST | |
1335 | linux_xfer_osdata_msg (gdb_byte *readbuf, | |
1336 | ULONGEST offset, LONGEST len) | |
1337 | { | |
1338 | static const char *buf; | |
1339 | static LONGEST len_avail = -1; | |
1340 | static struct buffer buffer; | |
1341 | ||
1342 | if (offset == 0) | |
1343 | { | |
1344 | FILE *fp; | |
1345 | ||
1346 | if (len_avail != -1 && len_avail != 0) | |
1347 | buffer_free (&buffer); | |
1348 | len_avail = 0; | |
1349 | buf = NULL; | |
1350 | buffer_init (&buffer); | |
1351 | buffer_grow_str (&buffer, "<osdata type=\"message queues\">\n"); | |
1352 | ||
1353 | fp = fopen ("/proc/sysvipc/msg", "r"); | |
1354 | if (fp) | |
1355 | { | |
1356 | char buf[8192]; | |
1357 | ||
1358 | do | |
1359 | { | |
1360 | if (fgets (buf, sizeof (buf), fp)) | |
1361 | { | |
1362 | key_t key; | |
1363 | PID_T lspid, lrpid; | |
1364 | uid_t uid, cuid; | |
1365 | gid_t gid, cgid; | |
1366 | unsigned int perms, cbytes, qnum; | |
1367 | int msqid; | |
1368 | TIME_T stime, rtime, ctime; | |
1369 | int items_read; | |
1370 | ||
1371 | items_read = sscanf (buf, | |
1372 | "%d %d %o %u %u %lld %lld %d %d %d %d %lld %lld %lld", | |
1373 | &key, &msqid, &perms, &cbytes, &qnum, | |
1374 | &lspid, &lrpid, &uid, &gid, &cuid, &cgid, | |
1375 | &stime, &rtime, &ctime); | |
1376 | ||
1377 | if (items_read == 14) | |
1378 | { | |
1379 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1380 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1381 | char lscmd[32], lrcmd[32]; | |
1382 | char stime_str[32], rtime_str[32], ctime_str[32]; | |
1383 | ||
1384 | user_from_uid (user, sizeof (user), uid); | |
1385 | group_from_gid (group, sizeof (group), gid); | |
1386 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1387 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1388 | ||
1389 | command_from_pid (lscmd, sizeof (lscmd), lspid); | |
1390 | command_from_pid (lrcmd, sizeof (lrcmd), lrpid); | |
1391 | ||
1392 | time_from_time_t (stime_str, sizeof (stime_str), stime); | |
1393 | time_from_time_t (rtime_str, sizeof (rtime_str), rtime); | |
1394 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1395 | ||
1396 | buffer_xml_printf ( | |
1397 | &buffer, | |
1398 | "<item>" | |
1399 | "<column name=\"key\">%d</column>" | |
1400 | "<column name=\"msqid\">%d</column>" | |
1401 | "<column name=\"permissions\">%o</column>" | |
1402 | "<column name=\"num used bytes\">%u</column>" | |
1403 | "<column name=\"num messages\">%u</column>" | |
1404 | "<column name=\"last msgsnd() command\">%s</column>" | |
1405 | "<column name=\"last msgrcv() command\">%s</column>" | |
1406 | "<column name=\"user\">%s</column>" | |
1407 | "<column name=\"group\">%s</column>" | |
1408 | "<column name=\"creator user\">%s</column>" | |
1409 | "<column name=\"creator group\">%s</column>" | |
1410 | "<column name=\"last msgsnd() time\">%s</column>" | |
1411 | "<column name=\"last msgrcv() time\">%s</column>" | |
1412 | "<column name=\"last msgctl() time\">%s</column>" | |
1413 | "</item>", | |
1414 | key, | |
1415 | msqid, | |
1416 | perms, | |
1417 | cbytes, | |
1418 | qnum, | |
1419 | lscmd, | |
1420 | lrcmd, | |
1421 | user, | |
1422 | group, | |
1423 | cuser, | |
1424 | cgroup, | |
1425 | stime_str, | |
1426 | rtime_str, | |
1427 | ctime_str); | |
1428 | } | |
1429 | } | |
1430 | } | |
1431 | while (!feof (fp)); | |
1432 | ||
1433 | fclose (fp); | |
1434 | } | |
1435 | ||
1436 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1437 | buf = buffer_finish (&buffer); | |
1438 | len_avail = strlen (buf); | |
1439 | } | |
1440 | ||
1441 | if (offset >= len_avail) | |
1442 | { | |
1443 | /* Done. Get rid of the buffer. */ | |
1444 | buffer_free (&buffer); | |
1445 | buf = NULL; | |
1446 | len_avail = 0; | |
1447 | return 0; | |
1448 | } | |
1449 | ||
1450 | if (len > len_avail - offset) | |
1451 | len = len_avail - offset; | |
1452 | memcpy (readbuf, buf + offset, len); | |
1453 | ||
1454 | return len; | |
1455 | } | |
1456 | ||
1457 | /* Collect data about loaded kernel modules and write it into | |
1458 | READBUF. */ | |
1459 | ||
1460 | static LONGEST | |
1461 | linux_xfer_osdata_modules (gdb_byte *readbuf, | |
1462 | ULONGEST offset, LONGEST len) | |
1463 | { | |
1464 | static const char *buf; | |
1465 | static LONGEST len_avail = -1; | |
1466 | static struct buffer buffer; | |
1467 | ||
1468 | if (offset == 0) | |
1469 | { | |
1470 | FILE *fp; | |
1471 | ||
1472 | if (len_avail != -1 && len_avail != 0) | |
1473 | buffer_free (&buffer); | |
1474 | len_avail = 0; | |
1475 | buf = NULL; | |
1476 | buffer_init (&buffer); | |
1477 | buffer_grow_str (&buffer, "<osdata type=\"modules\">\n"); | |
1478 | ||
1479 | fp = fopen ("/proc/modules", "r"); | |
1480 | if (fp) | |
1481 | { | |
1482 | char buf[8192]; | |
1483 | ||
1484 | do | |
1485 | { | |
1486 | if (fgets (buf, sizeof (buf), fp)) | |
1487 | { | |
1488 | char name[64], dependencies[256], status[16]; | |
1489 | unsigned int size; | |
1490 | unsigned long long address; | |
1491 | int uses; | |
1492 | int items_read; | |
1493 | ||
1494 | items_read = sscanf (buf, | |
1495 | "%64s %d %d %256s %16s 0x%llx", | |
1496 | name, &size, &uses, | |
1497 | dependencies, status, &address); | |
1498 | ||
1499 | if (items_read == 6) | |
1500 | buffer_xml_printf ( | |
1501 | &buffer, | |
1502 | "<item>" | |
1503 | "<column name=\"name\">%s</column>" | |
1504 | "<column name=\"size\">%u</column>" | |
1505 | "<column name=\"num uses\">%d</column>" | |
1506 | "<column name=\"dependencies\">%s</column>" | |
1507 | "<column name=\"status\">%s</column>" | |
1508 | "<column name=\"address\">%llx</column>" | |
1509 | "</item>", | |
1510 | name, | |
1511 | size, | |
1512 | uses, | |
1513 | dependencies, | |
1514 | status, | |
1515 | address); | |
1516 | } | |
1517 | } | |
1518 | while (!feof (fp)); | |
1519 | ||
1520 | fclose (fp); | |
1521 | } | |
1522 | ||
1523 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1524 | buf = buffer_finish (&buffer); | |
1525 | len_avail = strlen (buf); | |
1526 | } | |
1527 | ||
1528 | if (offset >= len_avail) | |
1529 | { | |
1530 | /* Done. Get rid of the buffer. */ | |
1531 | buffer_free (&buffer); | |
1532 | buf = NULL; | |
1533 | len_avail = 0; | |
1534 | return 0; | |
1535 | } | |
1536 | ||
1537 | if (len > len_avail - offset) | |
1538 | len = len_avail - offset; | |
1539 | memcpy (readbuf, buf + offset, len); | |
1540 | ||
1541 | return len; | |
1542 | } | |
1543 | ||
d26e3629 KY |
1544 | struct osdata_type { |
1545 | char *type; | |
71caed83 | 1546 | char *title; |
d26e3629 KY |
1547 | char *description; |
1548 | LONGEST (*getter) (gdb_byte *readbuf, ULONGEST offset, LONGEST len); | |
1549 | } osdata_table[] = { | |
71caed83 | 1550 | { "processes", "Processes", "Listing of all processes", |
85d4a676 | 1551 | linux_xfer_osdata_processes }, |
71caed83 | 1552 | { "procgroups", "Process groups", "Listing of all process groups", |
85d4a676 | 1553 | linux_xfer_osdata_processgroups }, |
71caed83 | 1554 | { "threads", "Threads", "Listing of all threads", |
85d4a676 | 1555 | linux_xfer_osdata_threads }, |
71caed83 | 1556 | { "files", "File descriptors", "Listing of all file descriptors", |
85d4a676 | 1557 | linux_xfer_osdata_fds }, |
71caed83 | 1558 | { "sockets", "Sockets", "Listing of all internet-domain sockets", |
85d4a676 | 1559 | linux_xfer_osdata_isockets }, |
71caed83 | 1560 | { "shm", "Shared-memory regions", "Listing of all shared-memory regions", |
85d4a676 | 1561 | linux_xfer_osdata_shm }, |
71caed83 | 1562 | { "semaphores", "Semaphores", "Listing of all semaphores", |
85d4a676 | 1563 | linux_xfer_osdata_sem }, |
71caed83 | 1564 | { "msg", "Message queues", "Listing of all message queues", |
85d4a676 | 1565 | linux_xfer_osdata_msg }, |
71caed83 | 1566 | { "modules", "Kernel modules", "Listing of all loaded kernel modules", |
85d4a676 | 1567 | linux_xfer_osdata_modules }, |
d26e3629 KY |
1568 | { NULL, NULL, NULL } |
1569 | }; | |
1570 | ||
1571 | LONGEST | |
1572 | linux_common_xfer_osdata (const char *annex, gdb_byte *readbuf, | |
1573 | ULONGEST offset, LONGEST len) | |
1574 | { | |
1575 | if (!annex || *annex == '\0') | |
1576 | { | |
1577 | static const char *buf; | |
1578 | static LONGEST len_avail = -1; | |
1579 | static struct buffer buffer; | |
1580 | ||
1581 | if (offset == 0) | |
1582 | { | |
1583 | int i; | |
1584 | ||
1585 | if (len_avail != -1 && len_avail != 0) | |
1586 | buffer_free (&buffer); | |
1587 | len_avail = 0; | |
1588 | buf = NULL; | |
1589 | buffer_init (&buffer); | |
1590 | buffer_grow_str (&buffer, "<osdata type=\"types\">\n"); | |
1591 | ||
1592 | for (i = 0; osdata_table[i].type; ++i) | |
1593 | buffer_xml_printf ( | |
1594 | &buffer, | |
1595 | "<item>" | |
1596 | "<column name=\"Type\">%s</column>" | |
1597 | "<column name=\"Description\">%s</column>" | |
71caed83 | 1598 | "<column name=\"Title\">%s</column>" |
d26e3629 KY |
1599 | "</item>", |
1600 | osdata_table[i].type, | |
71caed83 SS |
1601 | osdata_table[i].description, |
1602 | osdata_table[i].title); | |
d26e3629 KY |
1603 | |
1604 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1605 | buf = buffer_finish (&buffer); | |
1606 | len_avail = strlen (buf); | |
1607 | } | |
1608 | ||
1609 | if (offset >= len_avail) | |
1610 | { | |
1611 | /* Done. Get rid of the buffer. */ | |
1612 | buffer_free (&buffer); | |
1613 | buf = NULL; | |
1614 | len_avail = 0; | |
1615 | return 0; | |
1616 | } | |
1617 | ||
1618 | if (len > len_avail - offset) | |
1619 | len = len_avail - offset; | |
1620 | memcpy (readbuf, buf + offset, len); | |
1621 | ||
1622 | return len; | |
1623 | } | |
1624 | else | |
1625 | { | |
1626 | int i; | |
1627 | ||
1628 | for (i = 0; osdata_table[i].type; ++i) | |
1629 | { | |
1630 | if (strcmp (annex, osdata_table[i].type) == 0) | |
1631 | { | |
1632 | gdb_assert (readbuf); | |
1633 | ||
1634 | return (osdata_table[i].getter) (readbuf, offset, len); | |
1635 | } | |
1636 | } | |
1637 | ||
1638 | return 0; | |
1639 | } | |
1640 | } | |
1641 |