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> | |
d26e3629 KY |
29 | #include <ctype.h> |
30 | #include <stdlib.h> | |
31 | #include <string.h> | |
32 | #include <utmp.h> | |
33 | #include <time.h> | |
34 | #include <unistd.h> | |
35 | #include <pwd.h> | |
36 | #include <grp.h> | |
37 | #include <netdb.h> | |
38 | #include <netinet/in.h> | |
39 | #include <arpa/inet.h> | |
40 | ||
41 | #include "xml-utils.h" | |
42 | #include "buffer.h" | |
43 | #include "gdb_assert.h" | |
44 | #include "gdb_dirent.h" | |
8bdce1ff | 45 | #include "gdb_stat.h" |
d26e3629 | 46 | |
85d4a676 SS |
47 | /* Define PID_T to be a fixed size that is at least as large as pid_t, |
48 | so that reading pid values embedded in /proc works | |
49 | consistently. */ | |
50 | ||
51 | typedef long long PID_T; | |
52 | ||
53 | /* Define TIME_T to be at least as large as time_t, so that reading | |
54 | time values embedded in /proc works consistently. */ | |
55 | ||
56 | typedef long long TIME_T; | |
57 | ||
58 | #define MAX_PID_T_STRLEN (sizeof ("-9223372036854775808") - 1) | |
59 | ||
60 | /* Returns the CPU core that thread PTID is currently running on. */ | |
61 | ||
2e794194 JK |
62 | /* Compute and return the processor core of a given thread. */ |
63 | ||
d26e3629 KY |
64 | int |
65 | linux_common_core_of_thread (ptid_t ptid) | |
66 | { | |
85d4a676 | 67 | char filename[sizeof ("/proc//task//stat") + 2 * MAX_PID_T_STRLEN]; |
d26e3629 KY |
68 | FILE *f; |
69 | char *content = NULL; | |
70 | char *p; | |
71 | char *ts = 0; | |
72 | int content_read = 0; | |
73 | int i; | |
74 | int core; | |
75 | ||
85d4a676 SS |
76 | sprintf (filename, "/proc/%lld/task/%lld/stat", |
77 | (PID_T) ptid_get_pid (ptid), (PID_T) ptid_get_lwp (ptid)); | |
d26e3629 KY |
78 | f = fopen (filename, "r"); |
79 | if (!f) | |
80 | return -1; | |
81 | ||
82 | for (;;) | |
83 | { | |
84 | int n; | |
85 | content = xrealloc (content, content_read + 1024); | |
86 | n = fread (content + content_read, 1, 1024, f); | |
87 | content_read += n; | |
88 | if (n < 1024) | |
89 | { | |
90 | content[content_read] = '\0'; | |
91 | break; | |
92 | } | |
93 | } | |
94 | ||
95 | p = strchr (content, '('); | |
96 | ||
97 | /* Skip ")". */ | |
98 | if (p != NULL) | |
99 | p = strchr (p, ')'); | |
100 | if (p != NULL) | |
101 | p++; | |
102 | ||
103 | /* If the first field after program name has index 0, then core number is | |
104 | the field with index 36. There's no constant for that anywhere. */ | |
105 | if (p != NULL) | |
106 | p = strtok_r (p, " ", &ts); | |
107 | for (i = 0; p != NULL && i != 36; ++i) | |
108 | p = strtok_r (NULL, " ", &ts); | |
109 | ||
110 | if (p == NULL || sscanf (p, "%d", &core) == 0) | |
111 | core = -1; | |
112 | ||
113 | xfree (content); | |
114 | fclose (f); | |
115 | ||
116 | return core; | |
117 | } | |
118 | ||
85d4a676 SS |
119 | /* Finds the command-line of process PID and copies it into COMMAND. |
120 | At most MAXLEN characters are copied. If the command-line cannot | |
121 | be found, PID is copied into command in text-form. */ | |
122 | ||
d26e3629 | 123 | static void |
85d4a676 | 124 | command_from_pid (char *command, int maxlen, PID_T pid) |
d26e3629 | 125 | { |
85d4a676 | 126 | char *stat_path = xstrprintf ("/proc/%lld/stat", pid); |
d26e3629 KY |
127 | FILE *fp = fopen (stat_path, "r"); |
128 | ||
129 | command[0] = '\0'; | |
130 | ||
131 | if (fp) | |
132 | { | |
133 | /* sizeof (cmd) should be greater or equal to TASK_COMM_LEN (in | |
134 | include/linux/sched.h in the Linux kernel sources) plus two | |
135 | (for the brackets). */ | |
136 | char cmd[32]; | |
85d4a676 SS |
137 | PID_T stat_pid; |
138 | int items_read = fscanf (fp, "%lld %32s", &stat_pid, cmd); | |
d26e3629 KY |
139 | |
140 | if (items_read == 2 && pid == stat_pid) | |
141 | { | |
142 | cmd[strlen (cmd) - 1] = '\0'; /* Remove trailing parenthesis. */ | |
143 | strncpy (command, cmd + 1, maxlen); /* Ignore leading parenthesis. */ | |
144 | } | |
145 | ||
146 | fclose (fp); | |
147 | } | |
148 | else | |
149 | { | |
150 | /* Return the PID if a /proc entry for the process cannot be found. */ | |
85d4a676 | 151 | snprintf (command, maxlen, "%lld", pid); |
d26e3629 KY |
152 | } |
153 | ||
154 | command[maxlen - 1] = '\0'; /* Ensure string is null-terminated. */ | |
155 | ||
156 | xfree (stat_path); | |
157 | } | |
158 | ||
85d4a676 SS |
159 | /* Returns the command-line of the process with the given PID. The |
160 | returned string needs to be freed using xfree after use. */ | |
d26e3629 KY |
161 | |
162 | static char * | |
85d4a676 | 163 | commandline_from_pid (PID_T pid) |
d26e3629 | 164 | { |
85d4a676 | 165 | char *pathname = xstrprintf ("/proc/%lld/cmdline", pid); |
d26e3629 KY |
166 | char *commandline = NULL; |
167 | FILE *f = fopen (pathname, "r"); | |
168 | ||
169 | if (f) | |
170 | { | |
171 | size_t len = 0; | |
172 | ||
173 | while (!feof (f)) | |
174 | { | |
175 | char buf[1024]; | |
176 | size_t read_bytes = fread (buf, 1, sizeof (buf), f); | |
177 | ||
178 | if (read_bytes) | |
179 | { | |
180 | commandline = (char *) xrealloc (commandline, len + read_bytes + 1); | |
181 | memcpy (commandline + len, buf, read_bytes); | |
182 | len += read_bytes; | |
183 | } | |
184 | } | |
185 | ||
186 | fclose (f); | |
187 | ||
188 | if (commandline) | |
189 | { | |
190 | size_t i; | |
191 | ||
192 | /* Replace null characters with spaces. */ | |
193 | for (i = 0; i < len; ++i) | |
194 | if (commandline[i] == '\0') | |
195 | commandline[i] = ' '; | |
196 | ||
197 | commandline[len] = '\0'; | |
198 | } | |
199 | else | |
200 | { | |
85d4a676 SS |
201 | /* Return the command in square brackets if the command-line |
202 | is empty. */ | |
d26e3629 KY |
203 | commandline = (char *) xmalloc (32); |
204 | commandline[0] = '['; | |
205 | command_from_pid (commandline + 1, 31, pid); | |
206 | ||
207 | len = strlen (commandline); | |
208 | if (len < 31) | |
209 | strcat (commandline, "]"); | |
210 | } | |
211 | } | |
212 | ||
213 | xfree (pathname); | |
214 | ||
215 | return commandline; | |
216 | } | |
217 | ||
85d4a676 SS |
218 | /* Finds the user name for the user UID and copies it into USER. At |
219 | most MAXLEN characters are copied. */ | |
220 | ||
d26e3629 KY |
221 | static void |
222 | user_from_uid (char *user, int maxlen, uid_t uid) | |
223 | { | |
224 | struct passwd *pwentry = getpwuid (uid); | |
225 | ||
226 | if (pwentry) | |
227 | { | |
228 | strncpy (user, pwentry->pw_name, maxlen); | |
85d4a676 SS |
229 | /* Ensure that the user name is null-terminated. */ |
230 | user[maxlen - 1] = '\0'; | |
d26e3629 KY |
231 | } |
232 | else | |
233 | user[0] = '\0'; | |
234 | } | |
235 | ||
85d4a676 SS |
236 | /* Finds the owner of process PID and returns the user id in OWNER. |
237 | Returns 0 if the owner was found, -1 otherwise. */ | |
238 | ||
d26e3629 | 239 | static int |
85d4a676 | 240 | get_process_owner (uid_t *owner, PID_T pid) |
d26e3629 KY |
241 | { |
242 | struct stat statbuf; | |
85d4a676 | 243 | char procentry[sizeof ("/proc/") + MAX_PID_T_STRLEN]; |
d26e3629 | 244 | |
85d4a676 | 245 | sprintf (procentry, "/proc/%lld", pid); |
d26e3629 KY |
246 | |
247 | if (stat (procentry, &statbuf) == 0 && S_ISDIR (statbuf.st_mode)) | |
248 | { | |
249 | *owner = statbuf.st_uid; | |
250 | return 0; | |
251 | } | |
252 | else | |
253 | return -1; | |
254 | } | |
255 | ||
85d4a676 SS |
256 | /* Returns the number of CPU cores found on the system. */ |
257 | ||
d26e3629 KY |
258 | static int |
259 | get_number_of_cpu_cores (void) | |
260 | { | |
261 | int cores = 0; | |
262 | FILE *f = fopen ("/proc/cpuinfo", "r"); | |
263 | ||
264 | while (!feof (f)) | |
265 | { | |
266 | char buf[512]; | |
267 | char *p = fgets (buf, sizeof (buf), f); | |
268 | ||
269 | if (p && strncmp (buf, "processor", 9) == 0) | |
270 | ++cores; | |
271 | } | |
272 | ||
273 | fclose (f); | |
274 | ||
275 | return cores; | |
276 | } | |
277 | ||
85d4a676 SS |
278 | /* Find the CPU cores used by process PID and return them in CORES. |
279 | CORES points to an array of at least get_number_of_cpu_cores () | |
280 | elements. */ | |
d26e3629 KY |
281 | |
282 | static int | |
85d4a676 | 283 | get_cores_used_by_process (PID_T pid, int *cores) |
d26e3629 | 284 | { |
85d4a676 | 285 | char taskdir[sizeof ("/proc/") + MAX_PID_T_STRLEN + sizeof ("/task") - 1]; |
d26e3629 KY |
286 | DIR *dir; |
287 | struct dirent *dp; | |
288 | int task_count = 0; | |
289 | ||
85d4a676 | 290 | sprintf (taskdir, "/proc/%lld/task", pid); |
d26e3629 | 291 | dir = opendir (taskdir); |
e5798bef | 292 | if (dir) |
d26e3629 | 293 | { |
e5798bef PA |
294 | while ((dp = readdir (dir)) != NULL) |
295 | { | |
85d4a676 | 296 | PID_T tid; |
e5798bef | 297 | int core; |
d26e3629 | 298 | |
e5798bef | 299 | if (!isdigit (dp->d_name[0]) |
85d4a676 | 300 | || NAMELEN (dp) > MAX_PID_T_STRLEN) |
e5798bef | 301 | continue; |
d26e3629 | 302 | |
85d4a676 SS |
303 | sscanf (dp->d_name, "%lld", &tid); |
304 | core = linux_common_core_of_thread (ptid_build ((pid_t) pid, | |
305 | (pid_t) tid, 0)); | |
d26e3629 | 306 | |
e5798bef PA |
307 | if (core >= 0) |
308 | { | |
309 | ++cores[core]; | |
310 | ++task_count; | |
311 | } | |
d26e3629 | 312 | } |
d26e3629 | 313 | |
e5798bef PA |
314 | closedir (dir); |
315 | } | |
d26e3629 KY |
316 | |
317 | return task_count; | |
318 | } | |
319 | ||
320 | static LONGEST | |
321 | linux_xfer_osdata_processes (gdb_byte *readbuf, | |
322 | ULONGEST offset, LONGEST len) | |
323 | { | |
324 | /* We make the process list snapshot when the object starts to be read. */ | |
325 | static const char *buf; | |
326 | static LONGEST len_avail = -1; | |
327 | static struct buffer buffer; | |
328 | ||
329 | if (offset == 0) | |
330 | { | |
331 | DIR *dirp; | |
332 | ||
333 | if (len_avail != -1 && len_avail != 0) | |
334 | buffer_free (&buffer); | |
335 | len_avail = 0; | |
336 | buf = NULL; | |
337 | buffer_init (&buffer); | |
338 | buffer_grow_str (&buffer, "<osdata type=\"processes\">\n"); | |
339 | ||
340 | dirp = opendir ("/proc"); | |
341 | if (dirp) | |
342 | { | |
343 | const int num_cores = get_number_of_cpu_cores (); | |
344 | struct dirent *dp; | |
345 | ||
346 | while ((dp = readdir (dirp)) != NULL) | |
347 | { | |
85d4a676 | 348 | PID_T pid; |
d26e3629 KY |
349 | uid_t owner; |
350 | char user[UT_NAMESIZE]; | |
351 | char *command_line; | |
352 | int *cores; | |
353 | int task_count; | |
354 | char *cores_str; | |
355 | int i; | |
356 | ||
357 | if (!isdigit (dp->d_name[0]) | |
85d4a676 | 358 | || NAMELEN (dp) > MAX_PID_T_STRLEN) |
d26e3629 KY |
359 | continue; |
360 | ||
85d4a676 | 361 | sscanf (dp->d_name, "%lld", &pid); |
d26e3629 KY |
362 | command_line = commandline_from_pid (pid); |
363 | ||
364 | if (get_process_owner (&owner, pid) == 0) | |
365 | user_from_uid (user, sizeof (user), owner); | |
366 | else | |
367 | strcpy (user, "?"); | |
368 | ||
369 | /* Find CPU cores used by the process. */ | |
370 | cores = (int *) xcalloc (num_cores, sizeof (int)); | |
371 | task_count = get_cores_used_by_process (pid, cores); | |
372 | cores_str = (char *) xcalloc (task_count, sizeof ("4294967295") + 1); | |
373 | ||
374 | for (i = 0; i < num_cores && task_count > 0; ++i) | |
375 | if (cores[i]) | |
376 | { | |
85d4a676 | 377 | char core_str[sizeof ("4294967295")]; |
d26e3629 KY |
378 | |
379 | sprintf (core_str, "%d", i); | |
380 | strcat (cores_str, core_str); | |
381 | ||
382 | task_count -= cores[i]; | |
383 | if (task_count > 0) | |
384 | strcat (cores_str, ","); | |
385 | } | |
386 | ||
387 | xfree (cores); | |
388 | ||
389 | buffer_xml_printf ( | |
390 | &buffer, | |
391 | "<item>" | |
85d4a676 | 392 | "<column name=\"pid\">%lld</column>" |
d26e3629 KY |
393 | "<column name=\"user\">%s</column>" |
394 | "<column name=\"command\">%s</column>" | |
395 | "<column name=\"cores\">%s</column>" | |
396 | "</item>", | |
397 | pid, | |
398 | user, | |
399 | command_line ? command_line : "", | |
400 | cores_str); | |
401 | ||
402 | xfree (command_line); | |
403 | xfree (cores_str); | |
404 | } | |
405 | ||
406 | closedir (dirp); | |
407 | } | |
408 | ||
409 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
410 | buf = buffer_finish (&buffer); | |
411 | len_avail = strlen (buf); | |
412 | } | |
413 | ||
414 | if (offset >= len_avail) | |
415 | { | |
416 | /* Done. Get rid of the buffer. */ | |
417 | buffer_free (&buffer); | |
418 | buf = NULL; | |
419 | len_avail = 0; | |
420 | return 0; | |
421 | } | |
422 | ||
423 | if (len > len_avail - offset) | |
424 | len = len_avail - offset; | |
425 | memcpy (readbuf, buf + offset, len); | |
426 | ||
427 | return len; | |
428 | } | |
429 | ||
85d4a676 SS |
430 | /* Auxiliary function used by qsort to sort processes by process |
431 | group. Compares two processes with ids PROCESS1 and PROCESS2. | |
432 | PROCESS1 comes before PROCESS2 if it has a lower process group id. | |
433 | If they belong to the same process group, PROCESS1 comes before | |
434 | PROCESS2 if it has a lower process id or is the process group | |
435 | leader. */ | |
436 | ||
437 | static int | |
438 | compare_processes (const void *process1, const void *process2) | |
439 | { | |
440 | PID_T pid1 = *((PID_T *) process1); | |
441 | PID_T pid2 = *((PID_T *) process2); | |
442 | PID_T pgid1 = *((PID_T *) process1 + 1); | |
443 | PID_T pgid2 = *((PID_T *) process2 + 1); | |
444 | ||
445 | /* Sort by PGID. */ | |
446 | if (pgid1 < pgid2) | |
447 | return -1; | |
448 | else if (pgid1 > pgid2) | |
449 | return 1; | |
450 | else | |
451 | { | |
452 | /* Process group leaders always come first, else sort by PID. */ | |
453 | if (pid1 == pgid1) | |
454 | return -1; | |
455 | else if (pid2 == pgid2) | |
456 | return 1; | |
457 | else if (pid1 < pid2) | |
458 | return -1; | |
459 | else if (pid1 > pid2) | |
460 | return 1; | |
461 | else | |
462 | return 0; | |
463 | } | |
464 | } | |
465 | ||
466 | /* Collect all process groups from /proc. */ | |
467 | ||
468 | static LONGEST | |
469 | linux_xfer_osdata_processgroups (gdb_byte *readbuf, | |
470 | ULONGEST offset, LONGEST len) | |
471 | { | |
472 | /* We make the process list snapshot when the object starts to be read. */ | |
473 | static const char *buf; | |
474 | static LONGEST len_avail = -1; | |
475 | static struct buffer buffer; | |
476 | ||
477 | if (offset == 0) | |
478 | { | |
479 | DIR *dirp; | |
480 | ||
481 | if (len_avail != -1 && len_avail != 0) | |
482 | buffer_free (&buffer); | |
483 | len_avail = 0; | |
484 | buf = NULL; | |
485 | buffer_init (&buffer); | |
486 | buffer_grow_str (&buffer, "<osdata type=\"process groups\">\n"); | |
487 | ||
488 | dirp = opendir ("/proc"); | |
489 | if (dirp) | |
490 | { | |
491 | struct dirent *dp; | |
492 | const size_t list_block_size = 512; | |
493 | PID_T *process_list = (PID_T *) xmalloc (list_block_size * 2 * sizeof (PID_T)); | |
494 | size_t process_count = 0; | |
495 | size_t i; | |
496 | ||
497 | /* Build list consisting of PIDs followed by their | |
498 | associated PGID. */ | |
499 | while ((dp = readdir (dirp)) != NULL) | |
500 | { | |
501 | PID_T pid, pgid; | |
502 | ||
503 | if (!isdigit (dp->d_name[0]) | |
504 | || NAMELEN (dp) > MAX_PID_T_STRLEN) | |
505 | continue; | |
506 | ||
507 | sscanf (dp->d_name, "%lld", &pid); | |
508 | pgid = getpgid (pid); | |
509 | ||
510 | if (pgid > 0) | |
511 | { | |
512 | process_list[2 * process_count] = pid; | |
513 | process_list[2 * process_count + 1] = pgid; | |
514 | ++process_count; | |
515 | ||
516 | /* Increase the size of the list if necessary. */ | |
517 | if (process_count % list_block_size == 0) | |
518 | process_list = (PID_T *) xrealloc ( | |
519 | process_list, | |
520 | (process_count + list_block_size) | |
521 | * 2 * sizeof (PID_T)); | |
522 | } | |
523 | } | |
524 | ||
525 | closedir (dirp); | |
526 | ||
527 | /* Sort the process list. */ | |
528 | qsort (process_list, process_count, 2 * sizeof (PID_T), | |
529 | compare_processes); | |
530 | ||
531 | for (i = 0; i < process_count; ++i) | |
532 | { | |
533 | PID_T pid = process_list[2 * i]; | |
534 | PID_T pgid = process_list[2 * i + 1]; | |
535 | char leader_command[32]; | |
536 | char *command_line; | |
537 | ||
538 | command_from_pid (leader_command, sizeof (leader_command), pgid); | |
539 | command_line = commandline_from_pid (pid); | |
540 | ||
541 | buffer_xml_printf ( | |
542 | &buffer, | |
543 | "<item>" | |
544 | "<column name=\"pgid\">%lld</column>" | |
545 | "<column name=\"leader command\">%s</column>" | |
546 | "<column name=\"pid\">%lld</column>" | |
547 | "<column name=\"command line\">%s</column>" | |
548 | "</item>", | |
549 | pgid, | |
550 | leader_command, | |
551 | pid, | |
552 | command_line ? command_line : ""); | |
553 | ||
554 | xfree (command_line); | |
555 | } | |
556 | ||
557 | xfree (process_list); | |
558 | } | |
559 | ||
560 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
561 | buf = buffer_finish (&buffer); | |
562 | len_avail = strlen (buf); | |
563 | } | |
564 | ||
565 | if (offset >= len_avail) | |
566 | { | |
567 | /* Done. Get rid of the buffer. */ | |
568 | buffer_free (&buffer); | |
569 | buf = NULL; | |
570 | len_avail = 0; | |
571 | return 0; | |
572 | } | |
573 | ||
574 | if (len > len_avail - offset) | |
575 | len = len_avail - offset; | |
576 | memcpy (readbuf, buf + offset, len); | |
577 | ||
578 | return len; | |
579 | } | |
580 | ||
581 | /* Collect all the threads in /proc by iterating through processes and | |
582 | then tasks within each process. */ | |
583 | ||
d26e3629 KY |
584 | static LONGEST |
585 | linux_xfer_osdata_threads (gdb_byte *readbuf, | |
586 | ULONGEST offset, LONGEST len) | |
587 | { | |
588 | /* We make the process list snapshot when the object starts to be read. */ | |
589 | static const char *buf; | |
590 | static LONGEST len_avail = -1; | |
591 | static struct buffer buffer; | |
592 | ||
593 | if (offset == 0) | |
594 | { | |
595 | DIR *dirp; | |
596 | ||
597 | if (len_avail != -1 && len_avail != 0) | |
598 | buffer_free (&buffer); | |
599 | len_avail = 0; | |
600 | buf = NULL; | |
601 | buffer_init (&buffer); | |
602 | buffer_grow_str (&buffer, "<osdata type=\"threads\">\n"); | |
603 | ||
604 | dirp = opendir ("/proc"); | |
605 | if (dirp) | |
606 | { | |
607 | struct dirent *dp; | |
608 | ||
609 | while ((dp = readdir (dirp)) != NULL) | |
610 | { | |
611 | struct stat statbuf; | |
612 | char procentry[sizeof ("/proc/4294967295")]; | |
613 | ||
614 | if (!isdigit (dp->d_name[0]) | |
615 | || NAMELEN (dp) > sizeof ("4294967295") - 1) | |
616 | continue; | |
617 | ||
618 | sprintf (procentry, "/proc/%s", dp->d_name); | |
619 | if (stat (procentry, &statbuf) == 0 | |
620 | && S_ISDIR (statbuf.st_mode)) | |
621 | { | |
622 | DIR *dirp2; | |
623 | char *pathname; | |
85d4a676 | 624 | PID_T pid; |
d26e3629 KY |
625 | char command[32]; |
626 | ||
627 | pathname = xstrprintf ("/proc/%s/task", dp->d_name); | |
628 | ||
629 | pid = atoi (dp->d_name); | |
630 | command_from_pid (command, sizeof (command), pid); | |
631 | ||
632 | dirp2 = opendir (pathname); | |
633 | ||
634 | if (dirp2) | |
635 | { | |
636 | struct dirent *dp2; | |
637 | ||
638 | while ((dp2 = readdir (dirp2)) != NULL) | |
639 | { | |
85d4a676 | 640 | PID_T tid; |
d26e3629 KY |
641 | int core; |
642 | ||
643 | if (!isdigit (dp2->d_name[0]) | |
644 | || NAMELEN (dp2) > sizeof ("4294967295") - 1) | |
645 | continue; | |
646 | ||
647 | tid = atoi (dp2->d_name); | |
648 | core = linux_common_core_of_thread (ptid_build (pid, tid, 0)); | |
649 | ||
650 | buffer_xml_printf ( | |
651 | &buffer, | |
652 | "<item>" | |
85d4a676 | 653 | "<column name=\"pid\">%lld</column>" |
d26e3629 | 654 | "<column name=\"command\">%s</column>" |
85d4a676 | 655 | "<column name=\"tid\">%lld</column>" |
d26e3629 KY |
656 | "<column name=\"core\">%d</column>" |
657 | "</item>", | |
658 | pid, | |
659 | command, | |
660 | tid, | |
661 | core); | |
662 | } | |
663 | ||
664 | closedir (dirp2); | |
665 | } | |
666 | ||
667 | xfree (pathname); | |
668 | } | |
669 | } | |
670 | ||
671 | closedir (dirp); | |
672 | } | |
673 | ||
674 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
675 | buf = buffer_finish (&buffer); | |
676 | len_avail = strlen (buf); | |
677 | } | |
678 | ||
679 | if (offset >= len_avail) | |
680 | { | |
681 | /* Done. Get rid of the buffer. */ | |
682 | buffer_free (&buffer); | |
683 | buf = NULL; | |
684 | len_avail = 0; | |
685 | return 0; | |
686 | } | |
687 | ||
688 | if (len > len_avail - offset) | |
689 | len = len_avail - offset; | |
690 | memcpy (readbuf, buf + offset, len); | |
691 | ||
692 | return len; | |
693 | } | |
694 | ||
85d4a676 SS |
695 | /* Collect all the open file descriptors found in /proc and put the details |
696 | found about them into READBUF. */ | |
697 | ||
698 | static LONGEST | |
699 | linux_xfer_osdata_fds (gdb_byte *readbuf, | |
700 | ULONGEST offset, LONGEST len) | |
701 | { | |
702 | /* We make the process list snapshot when the object starts to be read. */ | |
703 | static const char *buf; | |
704 | static LONGEST len_avail = -1; | |
705 | static struct buffer buffer; | |
706 | ||
707 | if (offset == 0) | |
708 | { | |
709 | DIR *dirp; | |
710 | ||
711 | if (len_avail != -1 && len_avail != 0) | |
712 | buffer_free (&buffer); | |
713 | len_avail = 0; | |
714 | buf = NULL; | |
715 | buffer_init (&buffer); | |
716 | buffer_grow_str (&buffer, "<osdata type=\"files\">\n"); | |
717 | ||
718 | dirp = opendir ("/proc"); | |
719 | if (dirp) | |
720 | { | |
721 | struct dirent *dp; | |
722 | ||
723 | while ((dp = readdir (dirp)) != NULL) | |
724 | { | |
725 | struct stat statbuf; | |
726 | char procentry[sizeof ("/proc/4294967295")]; | |
727 | ||
728 | if (!isdigit (dp->d_name[0]) | |
729 | || NAMELEN (dp) > sizeof ("4294967295") - 1) | |
730 | continue; | |
731 | ||
732 | sprintf (procentry, "/proc/%s", dp->d_name); | |
733 | if (stat (procentry, &statbuf) == 0 | |
734 | && S_ISDIR (statbuf.st_mode)) | |
735 | { | |
736 | char *pathname; | |
737 | DIR *dirp2; | |
738 | PID_T pid; | |
739 | char command[32]; | |
740 | ||
741 | pid = atoi (dp->d_name); | |
742 | command_from_pid (command, sizeof (command), pid); | |
743 | ||
744 | pathname = xstrprintf ("/proc/%s/fd", dp->d_name); | |
745 | dirp2 = opendir (pathname); | |
746 | ||
747 | if (dirp2) | |
748 | { | |
749 | struct dirent *dp2; | |
750 | ||
751 | while ((dp2 = readdir (dirp2)) != NULL) | |
752 | { | |
753 | char *fdname; | |
754 | char buf[1000]; | |
755 | ssize_t rslt; | |
756 | ||
757 | if (!isdigit (dp2->d_name[0])) | |
758 | continue; | |
759 | ||
760 | fdname = xstrprintf ("%s/%s", pathname, dp2->d_name); | |
761 | rslt = readlink (fdname, buf, 1000); | |
762 | if (rslt >= 0) | |
763 | buf[rslt] = '\0'; | |
764 | ||
765 | buffer_xml_printf ( | |
766 | &buffer, | |
767 | "<item>" | |
768 | "<column name=\"pid\">%s</column>" | |
769 | "<column name=\"command\">%s</column>" | |
770 | "<column name=\"file descriptor\">%s</column>" | |
771 | "<column name=\"name\">%s</column>" | |
772 | "</item>", | |
773 | dp->d_name, | |
774 | command, | |
775 | dp2->d_name, | |
776 | (rslt >= 0 ? buf : dp2->d_name)); | |
777 | } | |
778 | ||
779 | closedir (dirp2); | |
780 | } | |
781 | ||
782 | xfree (pathname); | |
783 | } | |
784 | } | |
785 | ||
786 | closedir (dirp); | |
787 | } | |
788 | ||
789 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
790 | buf = buffer_finish (&buffer); | |
791 | len_avail = strlen (buf); | |
792 | } | |
793 | ||
794 | if (offset >= len_avail) | |
795 | { | |
796 | /* Done. Get rid of the buffer. */ | |
797 | buffer_free (&buffer); | |
798 | buf = NULL; | |
799 | len_avail = 0; | |
800 | return 0; | |
801 | } | |
802 | ||
803 | if (len > len_avail - offset) | |
804 | len = len_avail - offset; | |
805 | memcpy (readbuf, buf + offset, len); | |
806 | ||
807 | return len; | |
808 | } | |
809 | ||
810 | /* Returns the socket state STATE in textual form. */ | |
811 | ||
812 | static const char * | |
813 | format_socket_state (unsigned char state) | |
814 | { | |
815 | /* Copied from include/net/tcp_states.h in the Linux kernel sources. */ | |
816 | enum { | |
817 | TCP_ESTABLISHED = 1, | |
818 | TCP_SYN_SENT, | |
819 | TCP_SYN_RECV, | |
820 | TCP_FIN_WAIT1, | |
821 | TCP_FIN_WAIT2, | |
822 | TCP_TIME_WAIT, | |
823 | TCP_CLOSE, | |
824 | TCP_CLOSE_WAIT, | |
825 | TCP_LAST_ACK, | |
826 | TCP_LISTEN, | |
827 | TCP_CLOSING | |
828 | }; | |
829 | ||
830 | switch (state) | |
831 | { | |
832 | case TCP_ESTABLISHED: | |
833 | return "ESTABLISHED"; | |
834 | case TCP_SYN_SENT: | |
835 | return "SYN_SENT"; | |
836 | case TCP_SYN_RECV: | |
837 | return "SYN_RECV"; | |
838 | case TCP_FIN_WAIT1: | |
839 | return "FIN_WAIT1"; | |
840 | case TCP_FIN_WAIT2: | |
841 | return "FIN_WAIT2"; | |
842 | case TCP_TIME_WAIT: | |
843 | return "TIME_WAIT"; | |
844 | case TCP_CLOSE: | |
845 | return "CLOSE"; | |
846 | case TCP_CLOSE_WAIT: | |
847 | return "CLOSE_WAIT"; | |
848 | case TCP_LAST_ACK: | |
849 | return "LAST_ACK"; | |
850 | case TCP_LISTEN: | |
851 | return "LISTEN"; | |
852 | case TCP_CLOSING: | |
853 | return "CLOSING"; | |
854 | default: | |
855 | return "(unknown)"; | |
856 | } | |
857 | } | |
858 | ||
859 | union socket_addr | |
860 | { | |
861 | struct sockaddr sa; | |
862 | struct sockaddr_in sin; | |
863 | struct sockaddr_in6 sin6; | |
864 | }; | |
865 | ||
866 | /* Auxiliary function used by linux_xfer_osdata_isocket. Formats | |
867 | information for all open internet sockets of type FAMILY on the | |
868 | system into BUFFER. If TCP is set, only TCP sockets are processed, | |
869 | otherwise only UDP sockets are processed. */ | |
870 | ||
871 | static void | |
872 | print_sockets (unsigned short family, int tcp, struct buffer *buffer) | |
873 | { | |
874 | const char *proc_file; | |
875 | FILE *fp; | |
876 | ||
877 | if (family == AF_INET) | |
878 | proc_file = tcp ? "/proc/net/tcp" : "/proc/net/udp"; | |
879 | else if (family == AF_INET6) | |
880 | proc_file = tcp ? "/proc/net/tcp6" : "/proc/net/udp6"; | |
881 | else | |
882 | return; | |
883 | ||
884 | fp = fopen (proc_file, "r"); | |
885 | if (fp) | |
886 | { | |
887 | char buf[8192]; | |
888 | ||
889 | do | |
890 | { | |
891 | if (fgets (buf, sizeof (buf), fp)) | |
892 | { | |
893 | uid_t uid; | |
894 | unsigned long tlen, inode; | |
895 | int sl, timeout; | |
896 | unsigned int local_port, remote_port, state; | |
897 | unsigned int txq, rxq, trun, retn; | |
898 | char local_address[NI_MAXHOST], remote_address[NI_MAXHOST]; | |
899 | char extra[512]; | |
900 | int result; | |
901 | ||
902 | result = sscanf (buf, | |
903 | "%d: %33[0-9A-F]:%X %33[0-9A-F]:%X %X %X:%X %X:%lX %X %d %d %lu %512s\n", | |
904 | &sl, | |
905 | local_address, &local_port, | |
906 | remote_address, &remote_port, | |
907 | &state, | |
908 | &txq, &rxq, | |
909 | &trun, &tlen, | |
910 | &retn, | |
911 | &uid, | |
912 | &timeout, | |
913 | &inode, | |
914 | extra); | |
915 | ||
916 | if (result == 15) | |
917 | { | |
918 | union socket_addr locaddr, remaddr; | |
919 | size_t addr_size; | |
920 | char user[UT_NAMESIZE]; | |
921 | char local_service[NI_MAXSERV], remote_service[NI_MAXSERV]; | |
922 | ||
923 | if (family == AF_INET) | |
924 | { | |
925 | sscanf (local_address, "%X", | |
926 | &locaddr.sin.sin_addr.s_addr); | |
927 | sscanf (remote_address, "%X", | |
928 | &remaddr.sin.sin_addr.s_addr); | |
929 | ||
930 | locaddr.sin.sin_port = htons (local_port); | |
931 | remaddr.sin.sin_port = htons (remote_port); | |
932 | ||
933 | addr_size = sizeof (struct sockaddr_in); | |
934 | } | |
935 | else | |
936 | { | |
937 | sscanf (local_address, "%8X%8X%8X%8X", | |
938 | locaddr.sin6.sin6_addr.s6_addr32, | |
939 | locaddr.sin6.sin6_addr.s6_addr32 + 1, | |
940 | locaddr.sin6.sin6_addr.s6_addr32 + 2, | |
941 | locaddr.sin6.sin6_addr.s6_addr32 + 3); | |
942 | sscanf (remote_address, "%8X%8X%8X%8X", | |
943 | remaddr.sin6.sin6_addr.s6_addr32, | |
944 | remaddr.sin6.sin6_addr.s6_addr32 + 1, | |
945 | remaddr.sin6.sin6_addr.s6_addr32 + 2, | |
946 | remaddr.sin6.sin6_addr.s6_addr32 + 3); | |
947 | ||
948 | locaddr.sin6.sin6_port = htons (local_port); | |
949 | remaddr.sin6.sin6_port = htons (remote_port); | |
950 | ||
951 | locaddr.sin6.sin6_flowinfo = 0; | |
952 | remaddr.sin6.sin6_flowinfo = 0; | |
953 | locaddr.sin6.sin6_scope_id = 0; | |
954 | remaddr.sin6.sin6_scope_id = 0; | |
955 | ||
956 | addr_size = sizeof (struct sockaddr_in6); | |
957 | } | |
958 | ||
959 | locaddr.sa.sa_family = remaddr.sa.sa_family = family; | |
960 | ||
961 | result = getnameinfo (&locaddr.sa, addr_size, | |
962 | local_address, sizeof (local_address), | |
963 | local_service, sizeof (local_service), | |
964 | NI_NUMERICHOST | NI_NUMERICSERV | |
965 | | (tcp ? 0 : NI_DGRAM)); | |
966 | if (result) | |
967 | continue; | |
968 | ||
969 | result = getnameinfo (&remaddr.sa, addr_size, | |
970 | remote_address, | |
971 | sizeof (remote_address), | |
972 | remote_service, | |
973 | sizeof (remote_service), | |
974 | NI_NUMERICHOST | NI_NUMERICSERV | |
975 | | (tcp ? 0 : NI_DGRAM)); | |
976 | if (result) | |
977 | continue; | |
978 | ||
979 | user_from_uid (user, sizeof (user), uid); | |
980 | ||
981 | buffer_xml_printf ( | |
982 | buffer, | |
983 | "<item>" | |
984 | "<column name=\"local address\">%s</column>" | |
985 | "<column name=\"local port\">%s</column>" | |
986 | "<column name=\"remote address\">%s</column>" | |
987 | "<column name=\"remote port\">%s</column>" | |
988 | "<column name=\"state\">%s</column>" | |
989 | "<column name=\"user\">%s</column>" | |
990 | "<column name=\"family\">%s</column>" | |
991 | "<column name=\"protocol\">%s</column>" | |
992 | "</item>", | |
993 | local_address, | |
994 | local_service, | |
995 | remote_address, | |
996 | remote_service, | |
997 | format_socket_state (state), | |
998 | user, | |
999 | (family == AF_INET) ? "INET" : "INET6", | |
1000 | tcp ? "STREAM" : "DGRAM"); | |
1001 | } | |
1002 | } | |
1003 | } | |
1004 | while (!feof (fp)); | |
1005 | ||
1006 | fclose (fp); | |
1007 | } | |
1008 | } | |
1009 | ||
1010 | /* Collect data about internet sockets and write it into READBUF. */ | |
1011 | ||
1012 | static LONGEST | |
1013 | linux_xfer_osdata_isockets (gdb_byte *readbuf, | |
1014 | ULONGEST offset, LONGEST len) | |
1015 | { | |
1016 | static const char *buf; | |
1017 | static LONGEST len_avail = -1; | |
1018 | static struct buffer buffer; | |
1019 | ||
1020 | if (offset == 0) | |
1021 | { | |
1022 | if (len_avail != -1 && len_avail != 0) | |
1023 | buffer_free (&buffer); | |
1024 | len_avail = 0; | |
1025 | buf = NULL; | |
1026 | buffer_init (&buffer); | |
1027 | buffer_grow_str (&buffer, "<osdata type=\"I sockets\">\n"); | |
1028 | ||
1029 | print_sockets (AF_INET, 1, &buffer); | |
1030 | print_sockets (AF_INET, 0, &buffer); | |
1031 | print_sockets (AF_INET6, 1, &buffer); | |
1032 | print_sockets (AF_INET6, 0, &buffer); | |
1033 | ||
1034 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1035 | buf = buffer_finish (&buffer); | |
1036 | len_avail = strlen (buf); | |
1037 | } | |
1038 | ||
1039 | if (offset >= len_avail) | |
1040 | { | |
1041 | /* Done. Get rid of the buffer. */ | |
1042 | buffer_free (&buffer); | |
1043 | buf = NULL; | |
1044 | len_avail = 0; | |
1045 | return 0; | |
1046 | } | |
1047 | ||
1048 | if (len > len_avail - offset) | |
1049 | len = len_avail - offset; | |
1050 | memcpy (readbuf, buf + offset, len); | |
1051 | ||
1052 | return len; | |
1053 | } | |
1054 | ||
1055 | /* Converts the time SECONDS into textual form and copies it into a | |
1056 | buffer TIME, with at most MAXLEN characters copied. */ | |
1057 | ||
1058 | static void | |
1059 | time_from_time_t (char *time, int maxlen, TIME_T seconds) | |
1060 | { | |
1061 | if (!seconds) | |
1062 | time[0] = '\0'; | |
1063 | else | |
1064 | { | |
1065 | time_t t = (time_t) seconds; | |
1066 | ||
1067 | strncpy (time, ctime (&t), maxlen); | |
1068 | time[maxlen - 1] = '\0'; | |
1069 | } | |
1070 | } | |
1071 | ||
1072 | /* Finds the group name for the group GID and copies it into GROUP. | |
1073 | At most MAXLEN characters are copied. */ | |
1074 | ||
1075 | static void | |
1076 | group_from_gid (char *group, int maxlen, gid_t gid) | |
1077 | { | |
1078 | struct group *grentry = getgrgid (gid); | |
1079 | ||
1080 | if (grentry) | |
1081 | { | |
1082 | strncpy (group, grentry->gr_name, maxlen); | |
1083 | /* Ensure that the group name is null-terminated. */ | |
1084 | group[maxlen - 1] = '\0'; | |
1085 | } | |
1086 | else | |
1087 | group[0] = '\0'; | |
1088 | } | |
1089 | ||
1090 | /* Collect data about shared memory recorded in /proc and write it | |
1091 | into READBUF. */ | |
1092 | ||
1093 | static LONGEST | |
1094 | linux_xfer_osdata_shm (gdb_byte *readbuf, | |
1095 | ULONGEST offset, LONGEST len) | |
1096 | { | |
1097 | static const char *buf; | |
1098 | static LONGEST len_avail = -1; | |
1099 | static struct buffer buffer; | |
1100 | ||
1101 | if (offset == 0) | |
1102 | { | |
1103 | FILE *fp; | |
1104 | ||
1105 | if (len_avail != -1 && len_avail != 0) | |
1106 | buffer_free (&buffer); | |
1107 | len_avail = 0; | |
1108 | buf = NULL; | |
1109 | buffer_init (&buffer); | |
1110 | buffer_grow_str (&buffer, "<osdata type=\"shared memory\">\n"); | |
1111 | ||
1112 | fp = fopen ("/proc/sysvipc/shm", "r"); | |
1113 | if (fp) | |
1114 | { | |
1115 | char buf[8192]; | |
1116 | ||
1117 | do | |
1118 | { | |
1119 | if (fgets (buf, sizeof (buf), fp)) | |
1120 | { | |
1121 | key_t key; | |
1122 | uid_t uid, cuid; | |
1123 | gid_t gid, cgid; | |
1124 | PID_T cpid, lpid; | |
1125 | int shmid, size, nattch; | |
1126 | TIME_T atime, dtime, ctime; | |
1127 | unsigned int perms; | |
1128 | int items_read; | |
1129 | ||
1130 | items_read = sscanf (buf, | |
1131 | "%d %d %o %d %lld %lld %d %u %u %u %u %lld %lld %lld", | |
1132 | &key, &shmid, &perms, &size, | |
1133 | &cpid, &lpid, | |
1134 | &nattch, | |
1135 | &uid, &gid, &cuid, &cgid, | |
1136 | &atime, &dtime, &ctime); | |
1137 | ||
1138 | if (items_read == 14) | |
1139 | { | |
1140 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1141 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1142 | char ccmd[32], lcmd[32]; | |
1143 | char atime_str[32], dtime_str[32], ctime_str[32]; | |
1144 | ||
1145 | user_from_uid (user, sizeof (user), uid); | |
1146 | group_from_gid (group, sizeof (group), gid); | |
1147 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1148 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1149 | ||
1150 | command_from_pid (ccmd, sizeof (ccmd), cpid); | |
1151 | command_from_pid (lcmd, sizeof (lcmd), lpid); | |
1152 | ||
1153 | time_from_time_t (atime_str, sizeof (atime_str), atime); | |
1154 | time_from_time_t (dtime_str, sizeof (dtime_str), dtime); | |
1155 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1156 | ||
1157 | buffer_xml_printf ( | |
1158 | &buffer, | |
1159 | "<item>" | |
1160 | "<column name=\"key\">%d</column>" | |
1161 | "<column name=\"shmid\">%d</column>" | |
1162 | "<column name=\"permissions\">%o</column>" | |
1163 | "<column name=\"size\">%d</column>" | |
1164 | "<column name=\"creator command\">%s</column>" | |
1165 | "<column name=\"last op. command\">%s</column>" | |
1166 | "<column name=\"num attached\">%d</column>" | |
1167 | "<column name=\"user\">%s</column>" | |
1168 | "<column name=\"group\">%s</column>" | |
1169 | "<column name=\"creator user\">%s</column>" | |
1170 | "<column name=\"creator group\">%s</column>" | |
1171 | "<column name=\"last shmat() time\">%s</column>" | |
1172 | "<column name=\"last shmdt() time\">%s</column>" | |
1173 | "<column name=\"last shmctl() time\">%s</column>" | |
1174 | "</item>", | |
1175 | key, | |
1176 | shmid, | |
1177 | perms, | |
1178 | size, | |
1179 | ccmd, | |
1180 | lcmd, | |
1181 | nattch, | |
1182 | user, | |
1183 | group, | |
1184 | cuser, | |
1185 | cgroup, | |
1186 | atime_str, | |
1187 | dtime_str, | |
1188 | ctime_str); | |
1189 | } | |
1190 | } | |
1191 | } | |
1192 | while (!feof (fp)); | |
1193 | ||
1194 | fclose (fp); | |
1195 | } | |
1196 | ||
1197 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1198 | buf = buffer_finish (&buffer); | |
1199 | len_avail = strlen (buf); | |
1200 | } | |
1201 | ||
1202 | if (offset >= len_avail) | |
1203 | { | |
1204 | /* Done. Get rid of the buffer. */ | |
1205 | buffer_free (&buffer); | |
1206 | buf = NULL; | |
1207 | len_avail = 0; | |
1208 | return 0; | |
1209 | } | |
1210 | ||
1211 | if (len > len_avail - offset) | |
1212 | len = len_avail - offset; | |
1213 | memcpy (readbuf, buf + offset, len); | |
1214 | ||
1215 | return len; | |
1216 | } | |
1217 | ||
1218 | /* Collect data about semaphores recorded in /proc and write it | |
1219 | into READBUF. */ | |
1220 | ||
1221 | static LONGEST | |
1222 | linux_xfer_osdata_sem (gdb_byte *readbuf, | |
1223 | ULONGEST offset, LONGEST len) | |
1224 | { | |
1225 | static const char *buf; | |
1226 | static LONGEST len_avail = -1; | |
1227 | static struct buffer buffer; | |
1228 | ||
1229 | if (offset == 0) | |
1230 | { | |
1231 | FILE *fp; | |
1232 | ||
1233 | if (len_avail != -1 && len_avail != 0) | |
1234 | buffer_free (&buffer); | |
1235 | len_avail = 0; | |
1236 | buf = NULL; | |
1237 | buffer_init (&buffer); | |
1238 | buffer_grow_str (&buffer, "<osdata type=\"semaphores\">\n"); | |
1239 | ||
1240 | fp = fopen ("/proc/sysvipc/sem", "r"); | |
1241 | if (fp) | |
1242 | { | |
1243 | char buf[8192]; | |
1244 | ||
1245 | do | |
1246 | { | |
1247 | if (fgets (buf, sizeof (buf), fp)) | |
1248 | { | |
1249 | key_t key; | |
1250 | uid_t uid, cuid; | |
1251 | gid_t gid, cgid; | |
1252 | unsigned int perms, nsems; | |
1253 | int semid; | |
1254 | TIME_T otime, ctime; | |
1255 | int items_read; | |
1256 | ||
1257 | items_read = sscanf (buf, | |
1258 | "%d %d %o %u %d %d %d %d %lld %lld", | |
1259 | &key, &semid, &perms, &nsems, | |
1260 | &uid, &gid, &cuid, &cgid, | |
1261 | &otime, &ctime); | |
1262 | ||
1263 | if (items_read == 10) | |
1264 | { | |
1265 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1266 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1267 | char otime_str[32], ctime_str[32]; | |
1268 | ||
1269 | user_from_uid (user, sizeof (user), uid); | |
1270 | group_from_gid (group, sizeof (group), gid); | |
1271 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1272 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1273 | ||
1274 | time_from_time_t (otime_str, sizeof (otime_str), otime); | |
1275 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1276 | ||
1277 | buffer_xml_printf ( | |
1278 | &buffer, | |
1279 | "<item>" | |
1280 | "<column name=\"key\">%d</column>" | |
1281 | "<column name=\"semid\">%d</column>" | |
1282 | "<column name=\"permissions\">%o</column>" | |
1283 | "<column name=\"num semaphores\">%u</column>" | |
1284 | "<column name=\"user\">%s</column>" | |
1285 | "<column name=\"group\">%s</column>" | |
1286 | "<column name=\"creator user\">%s</column>" | |
1287 | "<column name=\"creator group\">%s</column>" | |
1288 | "<column name=\"last semop() time\">%s</column>" | |
1289 | "<column name=\"last semctl() time\">%s</column>" | |
1290 | "</item>", | |
1291 | key, | |
1292 | semid, | |
1293 | perms, | |
1294 | nsems, | |
1295 | user, | |
1296 | group, | |
1297 | cuser, | |
1298 | cgroup, | |
1299 | otime_str, | |
1300 | ctime_str); | |
1301 | } | |
1302 | } | |
1303 | } | |
1304 | while (!feof (fp)); | |
1305 | ||
1306 | fclose (fp); | |
1307 | } | |
1308 | ||
1309 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1310 | buf = buffer_finish (&buffer); | |
1311 | len_avail = strlen (buf); | |
1312 | } | |
1313 | ||
1314 | if (offset >= len_avail) | |
1315 | { | |
1316 | /* Done. Get rid of the buffer. */ | |
1317 | buffer_free (&buffer); | |
1318 | buf = NULL; | |
1319 | len_avail = 0; | |
1320 | return 0; | |
1321 | } | |
1322 | ||
1323 | if (len > len_avail - offset) | |
1324 | len = len_avail - offset; | |
1325 | memcpy (readbuf, buf + offset, len); | |
1326 | ||
1327 | return len; | |
1328 | } | |
1329 | ||
1330 | /* Collect data about message queues recorded in /proc and write it | |
1331 | into READBUF. */ | |
1332 | ||
1333 | static LONGEST | |
1334 | linux_xfer_osdata_msg (gdb_byte *readbuf, | |
1335 | ULONGEST offset, LONGEST len) | |
1336 | { | |
1337 | static const char *buf; | |
1338 | static LONGEST len_avail = -1; | |
1339 | static struct buffer buffer; | |
1340 | ||
1341 | if (offset == 0) | |
1342 | { | |
1343 | FILE *fp; | |
1344 | ||
1345 | if (len_avail != -1 && len_avail != 0) | |
1346 | buffer_free (&buffer); | |
1347 | len_avail = 0; | |
1348 | buf = NULL; | |
1349 | buffer_init (&buffer); | |
1350 | buffer_grow_str (&buffer, "<osdata type=\"message queues\">\n"); | |
1351 | ||
1352 | fp = fopen ("/proc/sysvipc/msg", "r"); | |
1353 | if (fp) | |
1354 | { | |
1355 | char buf[8192]; | |
1356 | ||
1357 | do | |
1358 | { | |
1359 | if (fgets (buf, sizeof (buf), fp)) | |
1360 | { | |
1361 | key_t key; | |
1362 | PID_T lspid, lrpid; | |
1363 | uid_t uid, cuid; | |
1364 | gid_t gid, cgid; | |
1365 | unsigned int perms, cbytes, qnum; | |
1366 | int msqid; | |
1367 | TIME_T stime, rtime, ctime; | |
1368 | int items_read; | |
1369 | ||
1370 | items_read = sscanf (buf, | |
1371 | "%d %d %o %u %u %lld %lld %d %d %d %d %lld %lld %lld", | |
1372 | &key, &msqid, &perms, &cbytes, &qnum, | |
1373 | &lspid, &lrpid, &uid, &gid, &cuid, &cgid, | |
1374 | &stime, &rtime, &ctime); | |
1375 | ||
1376 | if (items_read == 14) | |
1377 | { | |
1378 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1379 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1380 | char lscmd[32], lrcmd[32]; | |
1381 | char stime_str[32], rtime_str[32], ctime_str[32]; | |
1382 | ||
1383 | user_from_uid (user, sizeof (user), uid); | |
1384 | group_from_gid (group, sizeof (group), gid); | |
1385 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1386 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1387 | ||
1388 | command_from_pid (lscmd, sizeof (lscmd), lspid); | |
1389 | command_from_pid (lrcmd, sizeof (lrcmd), lrpid); | |
1390 | ||
1391 | time_from_time_t (stime_str, sizeof (stime_str), stime); | |
1392 | time_from_time_t (rtime_str, sizeof (rtime_str), rtime); | |
1393 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1394 | ||
1395 | buffer_xml_printf ( | |
1396 | &buffer, | |
1397 | "<item>" | |
1398 | "<column name=\"key\">%d</column>" | |
1399 | "<column name=\"msqid\">%d</column>" | |
1400 | "<column name=\"permissions\">%o</column>" | |
1401 | "<column name=\"num used bytes\">%u</column>" | |
1402 | "<column name=\"num messages\">%u</column>" | |
1403 | "<column name=\"last msgsnd() command\">%s</column>" | |
1404 | "<column name=\"last msgrcv() command\">%s</column>" | |
1405 | "<column name=\"user\">%s</column>" | |
1406 | "<column name=\"group\">%s</column>" | |
1407 | "<column name=\"creator user\">%s</column>" | |
1408 | "<column name=\"creator group\">%s</column>" | |
1409 | "<column name=\"last msgsnd() time\">%s</column>" | |
1410 | "<column name=\"last msgrcv() time\">%s</column>" | |
1411 | "<column name=\"last msgctl() time\">%s</column>" | |
1412 | "</item>", | |
1413 | key, | |
1414 | msqid, | |
1415 | perms, | |
1416 | cbytes, | |
1417 | qnum, | |
1418 | lscmd, | |
1419 | lrcmd, | |
1420 | user, | |
1421 | group, | |
1422 | cuser, | |
1423 | cgroup, | |
1424 | stime_str, | |
1425 | rtime_str, | |
1426 | ctime_str); | |
1427 | } | |
1428 | } | |
1429 | } | |
1430 | while (!feof (fp)); | |
1431 | ||
1432 | fclose (fp); | |
1433 | } | |
1434 | ||
1435 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1436 | buf = buffer_finish (&buffer); | |
1437 | len_avail = strlen (buf); | |
1438 | } | |
1439 | ||
1440 | if (offset >= len_avail) | |
1441 | { | |
1442 | /* Done. Get rid of the buffer. */ | |
1443 | buffer_free (&buffer); | |
1444 | buf = NULL; | |
1445 | len_avail = 0; | |
1446 | return 0; | |
1447 | } | |
1448 | ||
1449 | if (len > len_avail - offset) | |
1450 | len = len_avail - offset; | |
1451 | memcpy (readbuf, buf + offset, len); | |
1452 | ||
1453 | return len; | |
1454 | } | |
1455 | ||
1456 | /* Collect data about loaded kernel modules and write it into | |
1457 | READBUF. */ | |
1458 | ||
1459 | static LONGEST | |
1460 | linux_xfer_osdata_modules (gdb_byte *readbuf, | |
1461 | ULONGEST offset, LONGEST len) | |
1462 | { | |
1463 | static const char *buf; | |
1464 | static LONGEST len_avail = -1; | |
1465 | static struct buffer buffer; | |
1466 | ||
1467 | if (offset == 0) | |
1468 | { | |
1469 | FILE *fp; | |
1470 | ||
1471 | if (len_avail != -1 && len_avail != 0) | |
1472 | buffer_free (&buffer); | |
1473 | len_avail = 0; | |
1474 | buf = NULL; | |
1475 | buffer_init (&buffer); | |
1476 | buffer_grow_str (&buffer, "<osdata type=\"modules\">\n"); | |
1477 | ||
1478 | fp = fopen ("/proc/modules", "r"); | |
1479 | if (fp) | |
1480 | { | |
1481 | char buf[8192]; | |
1482 | ||
1483 | do | |
1484 | { | |
1485 | if (fgets (buf, sizeof (buf), fp)) | |
1486 | { | |
1487 | char name[64], dependencies[256], status[16]; | |
1488 | unsigned int size; | |
1489 | unsigned long long address; | |
1490 | int uses; | |
1491 | int items_read; | |
1492 | ||
1493 | items_read = sscanf (buf, | |
1494 | "%64s %d %d %256s %16s 0x%llx", | |
1495 | name, &size, &uses, | |
1496 | dependencies, status, &address); | |
1497 | ||
1498 | if (items_read == 6) | |
1499 | buffer_xml_printf ( | |
1500 | &buffer, | |
1501 | "<item>" | |
1502 | "<column name=\"name\">%s</column>" | |
1503 | "<column name=\"size\">%u</column>" | |
1504 | "<column name=\"num uses\">%d</column>" | |
1505 | "<column name=\"dependencies\">%s</column>" | |
1506 | "<column name=\"status\">%s</column>" | |
1507 | "<column name=\"address\">%llx</column>" | |
1508 | "</item>", | |
1509 | name, | |
1510 | size, | |
1511 | uses, | |
1512 | dependencies, | |
1513 | status, | |
1514 | address); | |
1515 | } | |
1516 | } | |
1517 | while (!feof (fp)); | |
1518 | ||
1519 | fclose (fp); | |
1520 | } | |
1521 | ||
1522 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1523 | buf = buffer_finish (&buffer); | |
1524 | len_avail = strlen (buf); | |
1525 | } | |
1526 | ||
1527 | if (offset >= len_avail) | |
1528 | { | |
1529 | /* Done. Get rid of the buffer. */ | |
1530 | buffer_free (&buffer); | |
1531 | buf = NULL; | |
1532 | len_avail = 0; | |
1533 | return 0; | |
1534 | } | |
1535 | ||
1536 | if (len > len_avail - offset) | |
1537 | len = len_avail - offset; | |
1538 | memcpy (readbuf, buf + offset, len); | |
1539 | ||
1540 | return len; | |
1541 | } | |
1542 | ||
d26e3629 KY |
1543 | struct osdata_type { |
1544 | char *type; | |
71caed83 | 1545 | char *title; |
d26e3629 KY |
1546 | char *description; |
1547 | LONGEST (*getter) (gdb_byte *readbuf, ULONGEST offset, LONGEST len); | |
1548 | } osdata_table[] = { | |
71caed83 | 1549 | { "processes", "Processes", "Listing of all processes", |
85d4a676 | 1550 | linux_xfer_osdata_processes }, |
71caed83 | 1551 | { "procgroups", "Process groups", "Listing of all process groups", |
85d4a676 | 1552 | linux_xfer_osdata_processgroups }, |
71caed83 | 1553 | { "threads", "Threads", "Listing of all threads", |
85d4a676 | 1554 | linux_xfer_osdata_threads }, |
71caed83 | 1555 | { "files", "File descriptors", "Listing of all file descriptors", |
85d4a676 | 1556 | linux_xfer_osdata_fds }, |
71caed83 | 1557 | { "sockets", "Sockets", "Listing of all internet-domain sockets", |
85d4a676 | 1558 | linux_xfer_osdata_isockets }, |
71caed83 | 1559 | { "shm", "Shared-memory regions", "Listing of all shared-memory regions", |
85d4a676 | 1560 | linux_xfer_osdata_shm }, |
71caed83 | 1561 | { "semaphores", "Semaphores", "Listing of all semaphores", |
85d4a676 | 1562 | linux_xfer_osdata_sem }, |
71caed83 | 1563 | { "msg", "Message queues", "Listing of all message queues", |
85d4a676 | 1564 | linux_xfer_osdata_msg }, |
71caed83 | 1565 | { "modules", "Kernel modules", "Listing of all loaded kernel modules", |
85d4a676 | 1566 | linux_xfer_osdata_modules }, |
d26e3629 KY |
1567 | { NULL, NULL, NULL } |
1568 | }; | |
1569 | ||
1570 | LONGEST | |
1571 | linux_common_xfer_osdata (const char *annex, gdb_byte *readbuf, | |
1572 | ULONGEST offset, LONGEST len) | |
1573 | { | |
1574 | if (!annex || *annex == '\0') | |
1575 | { | |
1576 | static const char *buf; | |
1577 | static LONGEST len_avail = -1; | |
1578 | static struct buffer buffer; | |
1579 | ||
1580 | if (offset == 0) | |
1581 | { | |
1582 | int i; | |
1583 | ||
1584 | if (len_avail != -1 && len_avail != 0) | |
1585 | buffer_free (&buffer); | |
1586 | len_avail = 0; | |
1587 | buf = NULL; | |
1588 | buffer_init (&buffer); | |
1589 | buffer_grow_str (&buffer, "<osdata type=\"types\">\n"); | |
1590 | ||
1591 | for (i = 0; osdata_table[i].type; ++i) | |
1592 | buffer_xml_printf ( | |
1593 | &buffer, | |
1594 | "<item>" | |
1595 | "<column name=\"Type\">%s</column>" | |
1596 | "<column name=\"Description\">%s</column>" | |
71caed83 | 1597 | "<column name=\"Title\">%s</column>" |
d26e3629 KY |
1598 | "</item>", |
1599 | osdata_table[i].type, | |
71caed83 SS |
1600 | osdata_table[i].description, |
1601 | osdata_table[i].title); | |
d26e3629 KY |
1602 | |
1603 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1604 | buf = buffer_finish (&buffer); | |
1605 | len_avail = strlen (buf); | |
1606 | } | |
1607 | ||
1608 | if (offset >= len_avail) | |
1609 | { | |
1610 | /* Done. Get rid of the buffer. */ | |
1611 | buffer_free (&buffer); | |
1612 | buf = NULL; | |
1613 | len_avail = 0; | |
1614 | return 0; | |
1615 | } | |
1616 | ||
1617 | if (len > len_avail - offset) | |
1618 | len = len_avail - offset; | |
1619 | memcpy (readbuf, buf + offset, len); | |
1620 | ||
1621 | return len; | |
1622 | } | |
1623 | else | |
1624 | { | |
1625 | int i; | |
1626 | ||
1627 | for (i = 0; osdata_table[i].type; ++i) | |
1628 | { | |
1629 | if (strcmp (annex, osdata_table[i].type) == 0) | |
1630 | { | |
1631 | gdb_assert (readbuf); | |
1632 | ||
1633 | return (osdata_table[i].getter) (readbuf, offset, len); | |
1634 | } | |
1635 | } | |
1636 | ||
1637 | return 0; | |
1638 | } | |
1639 | } | |
1640 |