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d26e3629 KY |
1 | /* Linux-specific functions to retrieve OS data. |
2 | ||
ecd75fc8 | 3 | Copyright (C) 2009-2014 Free Software Foundation, Inc. |
d26e3629 KY |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #ifdef GDBSERVER | |
21 | #include "server.h" | |
22 | #else | |
23 | #include "defs.h" | |
24 | #endif | |
25 | ||
26 | #include "linux-osdata.h" | |
27 | ||
28 | #include <sys/types.h> | |
b245bdfc | 29 | #include <sys/sysinfo.h> |
d26e3629 | 30 | #include <ctype.h> |
d26e3629 KY |
31 | #include <utmp.h> |
32 | #include <time.h> | |
33 | #include <unistd.h> | |
34 | #include <pwd.h> | |
35 | #include <grp.h> | |
36 | #include <netdb.h> | |
37 | #include <netinet/in.h> | |
38 | #include <arpa/inet.h> | |
39 | ||
40 | #include "xml-utils.h" | |
41 | #include "buffer.h" | |
2978b111 | 42 | #include <dirent.h> |
53ce3c39 | 43 | #include <sys/stat.h> |
614c279d | 44 | #include "filestuff.h" |
d26e3629 | 45 | |
2978b111 TT |
46 | #define NAMELEN(dirent) strlen ((dirent)->d_name) |
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)); | |
614c279d | 79 | f = gdb_fopen_cloexec (filename, "r"); |
d26e3629 KY |
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 | ||
184cd072 JK |
96 | /* ps command also relies on no trailing fields ever contain ')'. */ |
97 | p = strrchr (content, ')'); | |
d26e3629 KY |
98 | if (p != NULL) |
99 | p++; | |
100 | ||
101 | /* If the first field after program name has index 0, then core number is | |
102 | the field with index 36. There's no constant for that anywhere. */ | |
103 | if (p != NULL) | |
104 | p = strtok_r (p, " ", &ts); | |
105 | for (i = 0; p != NULL && i != 36; ++i) | |
106 | p = strtok_r (NULL, " ", &ts); | |
107 | ||
108 | if (p == NULL || sscanf (p, "%d", &core) == 0) | |
109 | core = -1; | |
110 | ||
111 | xfree (content); | |
112 | fclose (f); | |
113 | ||
114 | return core; | |
115 | } | |
116 | ||
85d4a676 SS |
117 | /* Finds the command-line of process PID and copies it into COMMAND. |
118 | At most MAXLEN characters are copied. If the command-line cannot | |
119 | be found, PID is copied into command in text-form. */ | |
120 | ||
d26e3629 | 121 | static void |
85d4a676 | 122 | command_from_pid (char *command, int maxlen, PID_T pid) |
d26e3629 | 123 | { |
85d4a676 | 124 | char *stat_path = xstrprintf ("/proc/%lld/stat", pid); |
614c279d | 125 | FILE *fp = gdb_fopen_cloexec (stat_path, "r"); |
d26e3629 KY |
126 | |
127 | command[0] = '\0'; | |
128 | ||
129 | if (fp) | |
130 | { | |
131 | /* sizeof (cmd) should be greater or equal to TASK_COMM_LEN (in | |
132 | include/linux/sched.h in the Linux kernel sources) plus two | |
133 | (for the brackets). */ | |
f60db4f0 | 134 | char cmd[18]; |
85d4a676 | 135 | PID_T stat_pid; |
f60db4f0 | 136 | int items_read = fscanf (fp, "%lld %17s", &stat_pid, cmd); |
d26e3629 KY |
137 | |
138 | if (items_read == 2 && pid == stat_pid) | |
139 | { | |
140 | cmd[strlen (cmd) - 1] = '\0'; /* Remove trailing parenthesis. */ | |
141 | strncpy (command, cmd + 1, maxlen); /* Ignore leading parenthesis. */ | |
142 | } | |
143 | ||
144 | fclose (fp); | |
145 | } | |
146 | else | |
147 | { | |
148 | /* Return the PID if a /proc entry for the process cannot be found. */ | |
85d4a676 | 149 | snprintf (command, maxlen, "%lld", pid); |
d26e3629 KY |
150 | } |
151 | ||
152 | command[maxlen - 1] = '\0'; /* Ensure string is null-terminated. */ | |
153 | ||
154 | xfree (stat_path); | |
155 | } | |
156 | ||
85d4a676 SS |
157 | /* Returns the command-line of the process with the given PID. The |
158 | returned string needs to be freed using xfree after use. */ | |
d26e3629 KY |
159 | |
160 | static char * | |
85d4a676 | 161 | commandline_from_pid (PID_T pid) |
d26e3629 | 162 | { |
85d4a676 | 163 | char *pathname = xstrprintf ("/proc/%lld/cmdline", pid); |
d26e3629 | 164 | char *commandline = NULL; |
614c279d | 165 | FILE *f = gdb_fopen_cloexec (pathname, "r"); |
d26e3629 KY |
166 | |
167 | if (f) | |
168 | { | |
169 | size_t len = 0; | |
170 | ||
171 | while (!feof (f)) | |
172 | { | |
173 | char buf[1024]; | |
174 | size_t read_bytes = fread (buf, 1, sizeof (buf), f); | |
175 | ||
176 | if (read_bytes) | |
177 | { | |
178 | commandline = (char *) xrealloc (commandline, len + read_bytes + 1); | |
179 | memcpy (commandline + len, buf, read_bytes); | |
180 | len += read_bytes; | |
181 | } | |
182 | } | |
183 | ||
184 | fclose (f); | |
185 | ||
186 | if (commandline) | |
187 | { | |
188 | size_t i; | |
189 | ||
190 | /* Replace null characters with spaces. */ | |
191 | for (i = 0; i < len; ++i) | |
192 | if (commandline[i] == '\0') | |
193 | commandline[i] = ' '; | |
194 | ||
195 | commandline[len] = '\0'; | |
196 | } | |
197 | else | |
198 | { | |
85d4a676 SS |
199 | /* Return the command in square brackets if the command-line |
200 | is empty. */ | |
d26e3629 KY |
201 | commandline = (char *) xmalloc (32); |
202 | commandline[0] = '['; | |
203 | command_from_pid (commandline + 1, 31, pid); | |
204 | ||
205 | len = strlen (commandline); | |
206 | if (len < 31) | |
207 | strcat (commandline, "]"); | |
208 | } | |
209 | } | |
210 | ||
211 | xfree (pathname); | |
212 | ||
213 | return commandline; | |
214 | } | |
215 | ||
85d4a676 SS |
216 | /* Finds the user name for the user UID and copies it into USER. At |
217 | most MAXLEN characters are copied. */ | |
218 | ||
d26e3629 KY |
219 | static void |
220 | user_from_uid (char *user, int maxlen, uid_t uid) | |
221 | { | |
222 | struct passwd *pwentry = getpwuid (uid); | |
223 | ||
224 | if (pwentry) | |
225 | { | |
226 | strncpy (user, pwentry->pw_name, maxlen); | |
85d4a676 SS |
227 | /* Ensure that the user name is null-terminated. */ |
228 | user[maxlen - 1] = '\0'; | |
d26e3629 KY |
229 | } |
230 | else | |
231 | user[0] = '\0'; | |
232 | } | |
233 | ||
85d4a676 SS |
234 | /* Finds the owner of process PID and returns the user id in OWNER. |
235 | Returns 0 if the owner was found, -1 otherwise. */ | |
236 | ||
d26e3629 | 237 | static int |
85d4a676 | 238 | get_process_owner (uid_t *owner, PID_T pid) |
d26e3629 KY |
239 | { |
240 | struct stat statbuf; | |
85d4a676 | 241 | char procentry[sizeof ("/proc/") + MAX_PID_T_STRLEN]; |
d26e3629 | 242 | |
85d4a676 | 243 | sprintf (procentry, "/proc/%lld", pid); |
d26e3629 KY |
244 | |
245 | if (stat (procentry, &statbuf) == 0 && S_ISDIR (statbuf.st_mode)) | |
246 | { | |
247 | *owner = statbuf.st_uid; | |
248 | return 0; | |
249 | } | |
250 | else | |
251 | return -1; | |
252 | } | |
253 | ||
85d4a676 | 254 | /* Find the CPU cores used by process PID and return them in CORES. |
184cd072 | 255 | CORES points to an array of NUM_CORES elements. */ |
d26e3629 KY |
256 | |
257 | static int | |
184cd072 | 258 | get_cores_used_by_process (PID_T pid, int *cores, const int num_cores) |
d26e3629 | 259 | { |
85d4a676 | 260 | char taskdir[sizeof ("/proc/") + MAX_PID_T_STRLEN + sizeof ("/task") - 1]; |
d26e3629 KY |
261 | DIR *dir; |
262 | struct dirent *dp; | |
263 | int task_count = 0; | |
264 | ||
85d4a676 | 265 | sprintf (taskdir, "/proc/%lld/task", pid); |
d26e3629 | 266 | dir = opendir (taskdir); |
e5798bef | 267 | if (dir) |
d26e3629 | 268 | { |
e5798bef PA |
269 | while ((dp = readdir (dir)) != NULL) |
270 | { | |
85d4a676 | 271 | PID_T tid; |
e5798bef | 272 | int core; |
d26e3629 | 273 | |
e5798bef | 274 | if (!isdigit (dp->d_name[0]) |
85d4a676 | 275 | || NAMELEN (dp) > MAX_PID_T_STRLEN) |
e5798bef | 276 | continue; |
d26e3629 | 277 | |
85d4a676 SS |
278 | sscanf (dp->d_name, "%lld", &tid); |
279 | core = linux_common_core_of_thread (ptid_build ((pid_t) pid, | |
280 | (pid_t) tid, 0)); | |
d26e3629 | 281 | |
184cd072 | 282 | if (core >= 0 && core < num_cores) |
e5798bef PA |
283 | { |
284 | ++cores[core]; | |
285 | ++task_count; | |
286 | } | |
d26e3629 | 287 | } |
d26e3629 | 288 | |
e5798bef PA |
289 | closedir (dir); |
290 | } | |
d26e3629 KY |
291 | |
292 | return task_count; | |
293 | } | |
294 | ||
295 | static LONGEST | |
296 | linux_xfer_osdata_processes (gdb_byte *readbuf, | |
dea80a27 | 297 | ULONGEST offset, ULONGEST len) |
d26e3629 KY |
298 | { |
299 | /* We make the process list snapshot when the object starts to be read. */ | |
300 | static const char *buf; | |
301 | static LONGEST len_avail = -1; | |
302 | static struct buffer buffer; | |
303 | ||
304 | if (offset == 0) | |
305 | { | |
306 | DIR *dirp; | |
307 | ||
308 | if (len_avail != -1 && len_avail != 0) | |
309 | buffer_free (&buffer); | |
310 | len_avail = 0; | |
311 | buf = NULL; | |
312 | buffer_init (&buffer); | |
313 | buffer_grow_str (&buffer, "<osdata type=\"processes\">\n"); | |
314 | ||
315 | dirp = opendir ("/proc"); | |
316 | if (dirp) | |
317 | { | |
b245bdfc | 318 | const int num_cores = sysconf (_SC_NPROCESSORS_ONLN); |
d26e3629 KY |
319 | struct dirent *dp; |
320 | ||
321 | while ((dp = readdir (dirp)) != NULL) | |
322 | { | |
85d4a676 | 323 | PID_T pid; |
d26e3629 KY |
324 | uid_t owner; |
325 | char user[UT_NAMESIZE]; | |
326 | char *command_line; | |
327 | int *cores; | |
328 | int task_count; | |
329 | char *cores_str; | |
330 | int i; | |
331 | ||
332 | if (!isdigit (dp->d_name[0]) | |
85d4a676 | 333 | || NAMELEN (dp) > MAX_PID_T_STRLEN) |
d26e3629 KY |
334 | continue; |
335 | ||
85d4a676 | 336 | sscanf (dp->d_name, "%lld", &pid); |
d26e3629 KY |
337 | command_line = commandline_from_pid (pid); |
338 | ||
339 | if (get_process_owner (&owner, pid) == 0) | |
340 | user_from_uid (user, sizeof (user), owner); | |
341 | else | |
342 | strcpy (user, "?"); | |
343 | ||
344 | /* Find CPU cores used by the process. */ | |
345 | cores = (int *) xcalloc (num_cores, sizeof (int)); | |
184cd072 | 346 | task_count = get_cores_used_by_process (pid, cores, num_cores); |
d26e3629 KY |
347 | cores_str = (char *) xcalloc (task_count, sizeof ("4294967295") + 1); |
348 | ||
349 | for (i = 0; i < num_cores && task_count > 0; ++i) | |
350 | if (cores[i]) | |
351 | { | |
85d4a676 | 352 | char core_str[sizeof ("4294967295")]; |
d26e3629 KY |
353 | |
354 | sprintf (core_str, "%d", i); | |
355 | strcat (cores_str, core_str); | |
356 | ||
357 | task_count -= cores[i]; | |
358 | if (task_count > 0) | |
359 | strcat (cores_str, ","); | |
360 | } | |
361 | ||
362 | xfree (cores); | |
363 | ||
364 | buffer_xml_printf ( | |
365 | &buffer, | |
366 | "<item>" | |
85d4a676 | 367 | "<column name=\"pid\">%lld</column>" |
d26e3629 KY |
368 | "<column name=\"user\">%s</column>" |
369 | "<column name=\"command\">%s</column>" | |
370 | "<column name=\"cores\">%s</column>" | |
371 | "</item>", | |
372 | pid, | |
373 | user, | |
374 | command_line ? command_line : "", | |
375 | cores_str); | |
376 | ||
377 | xfree (command_line); | |
378 | xfree (cores_str); | |
379 | } | |
380 | ||
381 | closedir (dirp); | |
382 | } | |
383 | ||
384 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
385 | buf = buffer_finish (&buffer); | |
386 | len_avail = strlen (buf); | |
387 | } | |
388 | ||
389 | if (offset >= len_avail) | |
390 | { | |
391 | /* Done. Get rid of the buffer. */ | |
392 | buffer_free (&buffer); | |
393 | buf = NULL; | |
394 | len_avail = 0; | |
395 | return 0; | |
396 | } | |
397 | ||
398 | if (len > len_avail - offset) | |
399 | len = len_avail - offset; | |
400 | memcpy (readbuf, buf + offset, len); | |
401 | ||
402 | return len; | |
403 | } | |
404 | ||
85d4a676 SS |
405 | /* Auxiliary function used by qsort to sort processes by process |
406 | group. Compares two processes with ids PROCESS1 and PROCESS2. | |
407 | PROCESS1 comes before PROCESS2 if it has a lower process group id. | |
408 | If they belong to the same process group, PROCESS1 comes before | |
409 | PROCESS2 if it has a lower process id or is the process group | |
410 | leader. */ | |
411 | ||
412 | static int | |
413 | compare_processes (const void *process1, const void *process2) | |
414 | { | |
415 | PID_T pid1 = *((PID_T *) process1); | |
416 | PID_T pid2 = *((PID_T *) process2); | |
417 | PID_T pgid1 = *((PID_T *) process1 + 1); | |
418 | PID_T pgid2 = *((PID_T *) process2 + 1); | |
419 | ||
420 | /* Sort by PGID. */ | |
421 | if (pgid1 < pgid2) | |
422 | return -1; | |
423 | else if (pgid1 > pgid2) | |
424 | return 1; | |
425 | else | |
426 | { | |
427 | /* Process group leaders always come first, else sort by PID. */ | |
428 | if (pid1 == pgid1) | |
429 | return -1; | |
430 | else if (pid2 == pgid2) | |
431 | return 1; | |
432 | else if (pid1 < pid2) | |
433 | return -1; | |
434 | else if (pid1 > pid2) | |
435 | return 1; | |
436 | else | |
437 | return 0; | |
438 | } | |
439 | } | |
440 | ||
441 | /* Collect all process groups from /proc. */ | |
442 | ||
443 | static LONGEST | |
444 | linux_xfer_osdata_processgroups (gdb_byte *readbuf, | |
dea80a27 | 445 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
446 | { |
447 | /* We make the process list snapshot when the object starts to be read. */ | |
448 | static const char *buf; | |
449 | static LONGEST len_avail = -1; | |
450 | static struct buffer buffer; | |
451 | ||
452 | if (offset == 0) | |
453 | { | |
454 | DIR *dirp; | |
455 | ||
456 | if (len_avail != -1 && len_avail != 0) | |
457 | buffer_free (&buffer); | |
458 | len_avail = 0; | |
459 | buf = NULL; | |
460 | buffer_init (&buffer); | |
461 | buffer_grow_str (&buffer, "<osdata type=\"process groups\">\n"); | |
462 | ||
463 | dirp = opendir ("/proc"); | |
464 | if (dirp) | |
465 | { | |
466 | struct dirent *dp; | |
467 | const size_t list_block_size = 512; | |
468 | PID_T *process_list = (PID_T *) xmalloc (list_block_size * 2 * sizeof (PID_T)); | |
469 | size_t process_count = 0; | |
470 | size_t i; | |
471 | ||
472 | /* Build list consisting of PIDs followed by their | |
473 | associated PGID. */ | |
474 | while ((dp = readdir (dirp)) != NULL) | |
475 | { | |
476 | PID_T pid, pgid; | |
477 | ||
478 | if (!isdigit (dp->d_name[0]) | |
479 | || NAMELEN (dp) > MAX_PID_T_STRLEN) | |
480 | continue; | |
481 | ||
482 | sscanf (dp->d_name, "%lld", &pid); | |
483 | pgid = getpgid (pid); | |
484 | ||
485 | if (pgid > 0) | |
486 | { | |
487 | process_list[2 * process_count] = pid; | |
488 | process_list[2 * process_count + 1] = pgid; | |
489 | ++process_count; | |
490 | ||
491 | /* Increase the size of the list if necessary. */ | |
492 | if (process_count % list_block_size == 0) | |
493 | process_list = (PID_T *) xrealloc ( | |
494 | process_list, | |
495 | (process_count + list_block_size) | |
496 | * 2 * sizeof (PID_T)); | |
497 | } | |
498 | } | |
499 | ||
500 | closedir (dirp); | |
501 | ||
502 | /* Sort the process list. */ | |
503 | qsort (process_list, process_count, 2 * sizeof (PID_T), | |
504 | compare_processes); | |
505 | ||
506 | for (i = 0; i < process_count; ++i) | |
507 | { | |
508 | PID_T pid = process_list[2 * i]; | |
509 | PID_T pgid = process_list[2 * i + 1]; | |
510 | char leader_command[32]; | |
511 | char *command_line; | |
512 | ||
513 | command_from_pid (leader_command, sizeof (leader_command), pgid); | |
514 | command_line = commandline_from_pid (pid); | |
515 | ||
516 | buffer_xml_printf ( | |
517 | &buffer, | |
518 | "<item>" | |
519 | "<column name=\"pgid\">%lld</column>" | |
520 | "<column name=\"leader command\">%s</column>" | |
521 | "<column name=\"pid\">%lld</column>" | |
522 | "<column name=\"command line\">%s</column>" | |
523 | "</item>", | |
524 | pgid, | |
525 | leader_command, | |
526 | pid, | |
527 | command_line ? command_line : ""); | |
528 | ||
529 | xfree (command_line); | |
530 | } | |
531 | ||
532 | xfree (process_list); | |
533 | } | |
534 | ||
535 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
536 | buf = buffer_finish (&buffer); | |
537 | len_avail = strlen (buf); | |
538 | } | |
539 | ||
540 | if (offset >= len_avail) | |
541 | { | |
542 | /* Done. Get rid of the buffer. */ | |
543 | buffer_free (&buffer); | |
544 | buf = NULL; | |
545 | len_avail = 0; | |
546 | return 0; | |
547 | } | |
548 | ||
549 | if (len > len_avail - offset) | |
550 | len = len_avail - offset; | |
551 | memcpy (readbuf, buf + offset, len); | |
552 | ||
553 | return len; | |
554 | } | |
555 | ||
556 | /* Collect all the threads in /proc by iterating through processes and | |
557 | then tasks within each process. */ | |
558 | ||
d26e3629 KY |
559 | static LONGEST |
560 | linux_xfer_osdata_threads (gdb_byte *readbuf, | |
dea80a27 | 561 | ULONGEST offset, ULONGEST len) |
d26e3629 KY |
562 | { |
563 | /* We make the process list snapshot when the object starts to be read. */ | |
564 | static const char *buf; | |
565 | static LONGEST len_avail = -1; | |
566 | static struct buffer buffer; | |
567 | ||
568 | if (offset == 0) | |
569 | { | |
570 | DIR *dirp; | |
571 | ||
572 | if (len_avail != -1 && len_avail != 0) | |
573 | buffer_free (&buffer); | |
574 | len_avail = 0; | |
575 | buf = NULL; | |
576 | buffer_init (&buffer); | |
577 | buffer_grow_str (&buffer, "<osdata type=\"threads\">\n"); | |
578 | ||
579 | dirp = opendir ("/proc"); | |
580 | if (dirp) | |
581 | { | |
582 | struct dirent *dp; | |
583 | ||
584 | while ((dp = readdir (dirp)) != NULL) | |
585 | { | |
586 | struct stat statbuf; | |
587 | char procentry[sizeof ("/proc/4294967295")]; | |
588 | ||
589 | if (!isdigit (dp->d_name[0]) | |
590 | || NAMELEN (dp) > sizeof ("4294967295") - 1) | |
591 | continue; | |
592 | ||
593 | sprintf (procentry, "/proc/%s", dp->d_name); | |
594 | if (stat (procentry, &statbuf) == 0 | |
595 | && S_ISDIR (statbuf.st_mode)) | |
596 | { | |
597 | DIR *dirp2; | |
598 | char *pathname; | |
85d4a676 | 599 | PID_T pid; |
d26e3629 KY |
600 | char command[32]; |
601 | ||
602 | pathname = xstrprintf ("/proc/%s/task", dp->d_name); | |
603 | ||
604 | pid = atoi (dp->d_name); | |
605 | command_from_pid (command, sizeof (command), pid); | |
606 | ||
607 | dirp2 = opendir (pathname); | |
608 | ||
609 | if (dirp2) | |
610 | { | |
611 | struct dirent *dp2; | |
612 | ||
613 | while ((dp2 = readdir (dirp2)) != NULL) | |
614 | { | |
85d4a676 | 615 | PID_T tid; |
d26e3629 KY |
616 | int core; |
617 | ||
618 | if (!isdigit (dp2->d_name[0]) | |
619 | || NAMELEN (dp2) > sizeof ("4294967295") - 1) | |
620 | continue; | |
621 | ||
622 | tid = atoi (dp2->d_name); | |
623 | core = linux_common_core_of_thread (ptid_build (pid, tid, 0)); | |
624 | ||
625 | buffer_xml_printf ( | |
626 | &buffer, | |
627 | "<item>" | |
85d4a676 | 628 | "<column name=\"pid\">%lld</column>" |
d26e3629 | 629 | "<column name=\"command\">%s</column>" |
85d4a676 | 630 | "<column name=\"tid\">%lld</column>" |
d26e3629 KY |
631 | "<column name=\"core\">%d</column>" |
632 | "</item>", | |
633 | pid, | |
634 | command, | |
635 | tid, | |
636 | core); | |
637 | } | |
638 | ||
639 | closedir (dirp2); | |
640 | } | |
641 | ||
642 | xfree (pathname); | |
643 | } | |
644 | } | |
645 | ||
646 | closedir (dirp); | |
647 | } | |
648 | ||
649 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
650 | buf = buffer_finish (&buffer); | |
651 | len_avail = strlen (buf); | |
652 | } | |
653 | ||
654 | if (offset >= len_avail) | |
655 | { | |
656 | /* Done. Get rid of the buffer. */ | |
657 | buffer_free (&buffer); | |
658 | buf = NULL; | |
659 | len_avail = 0; | |
660 | return 0; | |
661 | } | |
662 | ||
663 | if (len > len_avail - offset) | |
664 | len = len_avail - offset; | |
665 | memcpy (readbuf, buf + offset, len); | |
666 | ||
667 | return len; | |
668 | } | |
669 | ||
85d4a676 SS |
670 | /* Collect all the open file descriptors found in /proc and put the details |
671 | found about them into READBUF. */ | |
672 | ||
673 | static LONGEST | |
674 | linux_xfer_osdata_fds (gdb_byte *readbuf, | |
dea80a27 | 675 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
676 | { |
677 | /* We make the process list snapshot when the object starts to be read. */ | |
678 | static const char *buf; | |
679 | static LONGEST len_avail = -1; | |
680 | static struct buffer buffer; | |
681 | ||
682 | if (offset == 0) | |
683 | { | |
684 | DIR *dirp; | |
685 | ||
686 | if (len_avail != -1 && len_avail != 0) | |
687 | buffer_free (&buffer); | |
688 | len_avail = 0; | |
689 | buf = NULL; | |
690 | buffer_init (&buffer); | |
691 | buffer_grow_str (&buffer, "<osdata type=\"files\">\n"); | |
692 | ||
693 | dirp = opendir ("/proc"); | |
694 | if (dirp) | |
695 | { | |
696 | struct dirent *dp; | |
697 | ||
698 | while ((dp = readdir (dirp)) != NULL) | |
699 | { | |
700 | struct stat statbuf; | |
701 | char procentry[sizeof ("/proc/4294967295")]; | |
702 | ||
703 | if (!isdigit (dp->d_name[0]) | |
704 | || NAMELEN (dp) > sizeof ("4294967295") - 1) | |
705 | continue; | |
706 | ||
707 | sprintf (procentry, "/proc/%s", dp->d_name); | |
708 | if (stat (procentry, &statbuf) == 0 | |
709 | && S_ISDIR (statbuf.st_mode)) | |
710 | { | |
711 | char *pathname; | |
712 | DIR *dirp2; | |
713 | PID_T pid; | |
714 | char command[32]; | |
715 | ||
716 | pid = atoi (dp->d_name); | |
717 | command_from_pid (command, sizeof (command), pid); | |
718 | ||
719 | pathname = xstrprintf ("/proc/%s/fd", dp->d_name); | |
720 | dirp2 = opendir (pathname); | |
721 | ||
722 | if (dirp2) | |
723 | { | |
724 | struct dirent *dp2; | |
725 | ||
726 | while ((dp2 = readdir (dirp2)) != NULL) | |
727 | { | |
728 | char *fdname; | |
729 | char buf[1000]; | |
730 | ssize_t rslt; | |
731 | ||
732 | if (!isdigit (dp2->d_name[0])) | |
733 | continue; | |
734 | ||
735 | fdname = xstrprintf ("%s/%s", pathname, dp2->d_name); | |
0270a750 | 736 | rslt = readlink (fdname, buf, sizeof (buf) - 1); |
85d4a676 SS |
737 | if (rslt >= 0) |
738 | buf[rslt] = '\0'; | |
739 | ||
740 | buffer_xml_printf ( | |
741 | &buffer, | |
742 | "<item>" | |
743 | "<column name=\"pid\">%s</column>" | |
744 | "<column name=\"command\">%s</column>" | |
745 | "<column name=\"file descriptor\">%s</column>" | |
746 | "<column name=\"name\">%s</column>" | |
747 | "</item>", | |
748 | dp->d_name, | |
749 | command, | |
750 | dp2->d_name, | |
751 | (rslt >= 0 ? buf : dp2->d_name)); | |
752 | } | |
753 | ||
754 | closedir (dirp2); | |
755 | } | |
756 | ||
757 | xfree (pathname); | |
758 | } | |
759 | } | |
760 | ||
761 | closedir (dirp); | |
762 | } | |
763 | ||
764 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
765 | buf = buffer_finish (&buffer); | |
766 | len_avail = strlen (buf); | |
767 | } | |
768 | ||
769 | if (offset >= len_avail) | |
770 | { | |
771 | /* Done. Get rid of the buffer. */ | |
772 | buffer_free (&buffer); | |
773 | buf = NULL; | |
774 | len_avail = 0; | |
775 | return 0; | |
776 | } | |
777 | ||
778 | if (len > len_avail - offset) | |
779 | len = len_avail - offset; | |
780 | memcpy (readbuf, buf + offset, len); | |
781 | ||
782 | return len; | |
783 | } | |
784 | ||
785 | /* Returns the socket state STATE in textual form. */ | |
786 | ||
787 | static const char * | |
788 | format_socket_state (unsigned char state) | |
789 | { | |
790 | /* Copied from include/net/tcp_states.h in the Linux kernel sources. */ | |
791 | enum { | |
792 | TCP_ESTABLISHED = 1, | |
793 | TCP_SYN_SENT, | |
794 | TCP_SYN_RECV, | |
795 | TCP_FIN_WAIT1, | |
796 | TCP_FIN_WAIT2, | |
797 | TCP_TIME_WAIT, | |
798 | TCP_CLOSE, | |
799 | TCP_CLOSE_WAIT, | |
800 | TCP_LAST_ACK, | |
801 | TCP_LISTEN, | |
802 | TCP_CLOSING | |
803 | }; | |
804 | ||
805 | switch (state) | |
806 | { | |
807 | case TCP_ESTABLISHED: | |
808 | return "ESTABLISHED"; | |
809 | case TCP_SYN_SENT: | |
810 | return "SYN_SENT"; | |
811 | case TCP_SYN_RECV: | |
812 | return "SYN_RECV"; | |
813 | case TCP_FIN_WAIT1: | |
814 | return "FIN_WAIT1"; | |
815 | case TCP_FIN_WAIT2: | |
816 | return "FIN_WAIT2"; | |
817 | case TCP_TIME_WAIT: | |
818 | return "TIME_WAIT"; | |
819 | case TCP_CLOSE: | |
820 | return "CLOSE"; | |
821 | case TCP_CLOSE_WAIT: | |
822 | return "CLOSE_WAIT"; | |
823 | case TCP_LAST_ACK: | |
824 | return "LAST_ACK"; | |
825 | case TCP_LISTEN: | |
826 | return "LISTEN"; | |
827 | case TCP_CLOSING: | |
828 | return "CLOSING"; | |
829 | default: | |
830 | return "(unknown)"; | |
831 | } | |
832 | } | |
833 | ||
834 | union socket_addr | |
835 | { | |
836 | struct sockaddr sa; | |
837 | struct sockaddr_in sin; | |
838 | struct sockaddr_in6 sin6; | |
839 | }; | |
840 | ||
841 | /* Auxiliary function used by linux_xfer_osdata_isocket. Formats | |
842 | information for all open internet sockets of type FAMILY on the | |
843 | system into BUFFER. If TCP is set, only TCP sockets are processed, | |
844 | otherwise only UDP sockets are processed. */ | |
845 | ||
846 | static void | |
847 | print_sockets (unsigned short family, int tcp, struct buffer *buffer) | |
848 | { | |
849 | const char *proc_file; | |
850 | FILE *fp; | |
851 | ||
852 | if (family == AF_INET) | |
853 | proc_file = tcp ? "/proc/net/tcp" : "/proc/net/udp"; | |
854 | else if (family == AF_INET6) | |
855 | proc_file = tcp ? "/proc/net/tcp6" : "/proc/net/udp6"; | |
856 | else | |
857 | return; | |
858 | ||
614c279d | 859 | fp = gdb_fopen_cloexec (proc_file, "r"); |
85d4a676 SS |
860 | if (fp) |
861 | { | |
862 | char buf[8192]; | |
863 | ||
864 | do | |
865 | { | |
866 | if (fgets (buf, sizeof (buf), fp)) | |
867 | { | |
868 | uid_t uid; | |
85d4a676 | 869 | unsigned int local_port, remote_port, state; |
85d4a676 | 870 | char local_address[NI_MAXHOST], remote_address[NI_MAXHOST]; |
85d4a676 SS |
871 | int result; |
872 | ||
f60db4f0 GB |
873 | #if NI_MAXHOST <= 32 |
874 | #error "local_address and remote_address buffers too small" | |
875 | #endif | |
876 | ||
85d4a676 | 877 | result = sscanf (buf, |
f60db4f0 | 878 | "%*d: %32[0-9A-F]:%X %32[0-9A-F]:%X %X %*X:%*X %*X:%*X %*X %d %*d %*u %*s\n", |
85d4a676 SS |
879 | local_address, &local_port, |
880 | remote_address, &remote_port, | |
881 | &state, | |
f60db4f0 | 882 | &uid); |
85d4a676 | 883 | |
f60db4f0 | 884 | if (result == 6) |
85d4a676 SS |
885 | { |
886 | union socket_addr locaddr, remaddr; | |
887 | size_t addr_size; | |
888 | char user[UT_NAMESIZE]; | |
889 | char local_service[NI_MAXSERV], remote_service[NI_MAXSERV]; | |
890 | ||
891 | if (family == AF_INET) | |
892 | { | |
893 | sscanf (local_address, "%X", | |
894 | &locaddr.sin.sin_addr.s_addr); | |
895 | sscanf (remote_address, "%X", | |
896 | &remaddr.sin.sin_addr.s_addr); | |
897 | ||
898 | locaddr.sin.sin_port = htons (local_port); | |
899 | remaddr.sin.sin_port = htons (remote_port); | |
900 | ||
901 | addr_size = sizeof (struct sockaddr_in); | |
902 | } | |
903 | else | |
904 | { | |
905 | sscanf (local_address, "%8X%8X%8X%8X", | |
906 | locaddr.sin6.sin6_addr.s6_addr32, | |
907 | locaddr.sin6.sin6_addr.s6_addr32 + 1, | |
908 | locaddr.sin6.sin6_addr.s6_addr32 + 2, | |
909 | locaddr.sin6.sin6_addr.s6_addr32 + 3); | |
910 | sscanf (remote_address, "%8X%8X%8X%8X", | |
911 | remaddr.sin6.sin6_addr.s6_addr32, | |
912 | remaddr.sin6.sin6_addr.s6_addr32 + 1, | |
913 | remaddr.sin6.sin6_addr.s6_addr32 + 2, | |
914 | remaddr.sin6.sin6_addr.s6_addr32 + 3); | |
915 | ||
916 | locaddr.sin6.sin6_port = htons (local_port); | |
917 | remaddr.sin6.sin6_port = htons (remote_port); | |
918 | ||
919 | locaddr.sin6.sin6_flowinfo = 0; | |
920 | remaddr.sin6.sin6_flowinfo = 0; | |
921 | locaddr.sin6.sin6_scope_id = 0; | |
922 | remaddr.sin6.sin6_scope_id = 0; | |
923 | ||
924 | addr_size = sizeof (struct sockaddr_in6); | |
925 | } | |
926 | ||
927 | locaddr.sa.sa_family = remaddr.sa.sa_family = family; | |
928 | ||
929 | result = getnameinfo (&locaddr.sa, addr_size, | |
930 | local_address, sizeof (local_address), | |
931 | local_service, sizeof (local_service), | |
932 | NI_NUMERICHOST | NI_NUMERICSERV | |
933 | | (tcp ? 0 : NI_DGRAM)); | |
934 | if (result) | |
935 | continue; | |
936 | ||
937 | result = getnameinfo (&remaddr.sa, addr_size, | |
938 | remote_address, | |
939 | sizeof (remote_address), | |
940 | remote_service, | |
941 | sizeof (remote_service), | |
942 | NI_NUMERICHOST | NI_NUMERICSERV | |
943 | | (tcp ? 0 : NI_DGRAM)); | |
944 | if (result) | |
945 | continue; | |
946 | ||
947 | user_from_uid (user, sizeof (user), uid); | |
948 | ||
949 | buffer_xml_printf ( | |
950 | buffer, | |
951 | "<item>" | |
952 | "<column name=\"local address\">%s</column>" | |
953 | "<column name=\"local port\">%s</column>" | |
954 | "<column name=\"remote address\">%s</column>" | |
955 | "<column name=\"remote port\">%s</column>" | |
956 | "<column name=\"state\">%s</column>" | |
957 | "<column name=\"user\">%s</column>" | |
958 | "<column name=\"family\">%s</column>" | |
959 | "<column name=\"protocol\">%s</column>" | |
960 | "</item>", | |
961 | local_address, | |
962 | local_service, | |
963 | remote_address, | |
964 | remote_service, | |
965 | format_socket_state (state), | |
966 | user, | |
967 | (family == AF_INET) ? "INET" : "INET6", | |
968 | tcp ? "STREAM" : "DGRAM"); | |
969 | } | |
970 | } | |
971 | } | |
972 | while (!feof (fp)); | |
973 | ||
974 | fclose (fp); | |
975 | } | |
976 | } | |
977 | ||
978 | /* Collect data about internet sockets and write it into READBUF. */ | |
979 | ||
980 | static LONGEST | |
981 | linux_xfer_osdata_isockets (gdb_byte *readbuf, | |
dea80a27 | 982 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
983 | { |
984 | static const char *buf; | |
985 | static LONGEST len_avail = -1; | |
986 | static struct buffer buffer; | |
987 | ||
988 | if (offset == 0) | |
989 | { | |
990 | if (len_avail != -1 && len_avail != 0) | |
991 | buffer_free (&buffer); | |
992 | len_avail = 0; | |
993 | buf = NULL; | |
994 | buffer_init (&buffer); | |
995 | buffer_grow_str (&buffer, "<osdata type=\"I sockets\">\n"); | |
996 | ||
997 | print_sockets (AF_INET, 1, &buffer); | |
998 | print_sockets (AF_INET, 0, &buffer); | |
999 | print_sockets (AF_INET6, 1, &buffer); | |
1000 | print_sockets (AF_INET6, 0, &buffer); | |
1001 | ||
1002 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1003 | buf = buffer_finish (&buffer); | |
1004 | len_avail = strlen (buf); | |
1005 | } | |
1006 | ||
1007 | if (offset >= len_avail) | |
1008 | { | |
1009 | /* Done. Get rid of the buffer. */ | |
1010 | buffer_free (&buffer); | |
1011 | buf = NULL; | |
1012 | len_avail = 0; | |
1013 | return 0; | |
1014 | } | |
1015 | ||
1016 | if (len > len_avail - offset) | |
1017 | len = len_avail - offset; | |
1018 | memcpy (readbuf, buf + offset, len); | |
1019 | ||
1020 | return len; | |
1021 | } | |
1022 | ||
1023 | /* Converts the time SECONDS into textual form and copies it into a | |
1024 | buffer TIME, with at most MAXLEN characters copied. */ | |
1025 | ||
1026 | static void | |
1027 | time_from_time_t (char *time, int maxlen, TIME_T seconds) | |
1028 | { | |
1029 | if (!seconds) | |
1030 | time[0] = '\0'; | |
1031 | else | |
1032 | { | |
1033 | time_t t = (time_t) seconds; | |
1034 | ||
1035 | strncpy (time, ctime (&t), maxlen); | |
1036 | time[maxlen - 1] = '\0'; | |
1037 | } | |
1038 | } | |
1039 | ||
1040 | /* Finds the group name for the group GID and copies it into GROUP. | |
1041 | At most MAXLEN characters are copied. */ | |
1042 | ||
1043 | static void | |
1044 | group_from_gid (char *group, int maxlen, gid_t gid) | |
1045 | { | |
1046 | struct group *grentry = getgrgid (gid); | |
1047 | ||
1048 | if (grentry) | |
1049 | { | |
1050 | strncpy (group, grentry->gr_name, maxlen); | |
1051 | /* Ensure that the group name is null-terminated. */ | |
1052 | group[maxlen - 1] = '\0'; | |
1053 | } | |
1054 | else | |
1055 | group[0] = '\0'; | |
1056 | } | |
1057 | ||
1058 | /* Collect data about shared memory recorded in /proc and write it | |
1059 | into READBUF. */ | |
1060 | ||
1061 | static LONGEST | |
1062 | linux_xfer_osdata_shm (gdb_byte *readbuf, | |
dea80a27 | 1063 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1064 | { |
1065 | static const char *buf; | |
1066 | static LONGEST len_avail = -1; | |
1067 | static struct buffer buffer; | |
1068 | ||
1069 | if (offset == 0) | |
1070 | { | |
1071 | FILE *fp; | |
1072 | ||
1073 | if (len_avail != -1 && len_avail != 0) | |
1074 | buffer_free (&buffer); | |
1075 | len_avail = 0; | |
1076 | buf = NULL; | |
1077 | buffer_init (&buffer); | |
1078 | buffer_grow_str (&buffer, "<osdata type=\"shared memory\">\n"); | |
1079 | ||
614c279d | 1080 | fp = gdb_fopen_cloexec ("/proc/sysvipc/shm", "r"); |
85d4a676 SS |
1081 | if (fp) |
1082 | { | |
1083 | char buf[8192]; | |
1084 | ||
1085 | do | |
1086 | { | |
1087 | if (fgets (buf, sizeof (buf), fp)) | |
1088 | { | |
1089 | key_t key; | |
1090 | uid_t uid, cuid; | |
1091 | gid_t gid, cgid; | |
1092 | PID_T cpid, lpid; | |
1093 | int shmid, size, nattch; | |
1094 | TIME_T atime, dtime, ctime; | |
1095 | unsigned int perms; | |
1096 | int items_read; | |
1097 | ||
1098 | items_read = sscanf (buf, | |
1099 | "%d %d %o %d %lld %lld %d %u %u %u %u %lld %lld %lld", | |
1100 | &key, &shmid, &perms, &size, | |
1101 | &cpid, &lpid, | |
1102 | &nattch, | |
1103 | &uid, &gid, &cuid, &cgid, | |
1104 | &atime, &dtime, &ctime); | |
1105 | ||
1106 | if (items_read == 14) | |
1107 | { | |
1108 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1109 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1110 | char ccmd[32], lcmd[32]; | |
1111 | char atime_str[32], dtime_str[32], ctime_str[32]; | |
1112 | ||
1113 | user_from_uid (user, sizeof (user), uid); | |
1114 | group_from_gid (group, sizeof (group), gid); | |
1115 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1116 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1117 | ||
1118 | command_from_pid (ccmd, sizeof (ccmd), cpid); | |
1119 | command_from_pid (lcmd, sizeof (lcmd), lpid); | |
1120 | ||
1121 | time_from_time_t (atime_str, sizeof (atime_str), atime); | |
1122 | time_from_time_t (dtime_str, sizeof (dtime_str), dtime); | |
1123 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1124 | ||
1125 | buffer_xml_printf ( | |
1126 | &buffer, | |
1127 | "<item>" | |
1128 | "<column name=\"key\">%d</column>" | |
1129 | "<column name=\"shmid\">%d</column>" | |
1130 | "<column name=\"permissions\">%o</column>" | |
1131 | "<column name=\"size\">%d</column>" | |
1132 | "<column name=\"creator command\">%s</column>" | |
1133 | "<column name=\"last op. command\">%s</column>" | |
1134 | "<column name=\"num attached\">%d</column>" | |
1135 | "<column name=\"user\">%s</column>" | |
1136 | "<column name=\"group\">%s</column>" | |
1137 | "<column name=\"creator user\">%s</column>" | |
1138 | "<column name=\"creator group\">%s</column>" | |
1139 | "<column name=\"last shmat() time\">%s</column>" | |
1140 | "<column name=\"last shmdt() time\">%s</column>" | |
1141 | "<column name=\"last shmctl() time\">%s</column>" | |
1142 | "</item>", | |
1143 | key, | |
1144 | shmid, | |
1145 | perms, | |
1146 | size, | |
1147 | ccmd, | |
1148 | lcmd, | |
1149 | nattch, | |
1150 | user, | |
1151 | group, | |
1152 | cuser, | |
1153 | cgroup, | |
1154 | atime_str, | |
1155 | dtime_str, | |
1156 | ctime_str); | |
1157 | } | |
1158 | } | |
1159 | } | |
1160 | while (!feof (fp)); | |
1161 | ||
1162 | fclose (fp); | |
1163 | } | |
1164 | ||
1165 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1166 | buf = buffer_finish (&buffer); | |
1167 | len_avail = strlen (buf); | |
1168 | } | |
1169 | ||
1170 | if (offset >= len_avail) | |
1171 | { | |
1172 | /* Done. Get rid of the buffer. */ | |
1173 | buffer_free (&buffer); | |
1174 | buf = NULL; | |
1175 | len_avail = 0; | |
1176 | return 0; | |
1177 | } | |
1178 | ||
1179 | if (len > len_avail - offset) | |
1180 | len = len_avail - offset; | |
1181 | memcpy (readbuf, buf + offset, len); | |
1182 | ||
1183 | return len; | |
1184 | } | |
1185 | ||
1186 | /* Collect data about semaphores recorded in /proc and write it | |
1187 | into READBUF. */ | |
1188 | ||
1189 | static LONGEST | |
1190 | linux_xfer_osdata_sem (gdb_byte *readbuf, | |
dea80a27 | 1191 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1192 | { |
1193 | static const char *buf; | |
1194 | static LONGEST len_avail = -1; | |
1195 | static struct buffer buffer; | |
1196 | ||
1197 | if (offset == 0) | |
1198 | { | |
1199 | FILE *fp; | |
1200 | ||
1201 | if (len_avail != -1 && len_avail != 0) | |
1202 | buffer_free (&buffer); | |
1203 | len_avail = 0; | |
1204 | buf = NULL; | |
1205 | buffer_init (&buffer); | |
1206 | buffer_grow_str (&buffer, "<osdata type=\"semaphores\">\n"); | |
1207 | ||
614c279d | 1208 | fp = gdb_fopen_cloexec ("/proc/sysvipc/sem", "r"); |
85d4a676 SS |
1209 | if (fp) |
1210 | { | |
1211 | char buf[8192]; | |
1212 | ||
1213 | do | |
1214 | { | |
1215 | if (fgets (buf, sizeof (buf), fp)) | |
1216 | { | |
1217 | key_t key; | |
1218 | uid_t uid, cuid; | |
1219 | gid_t gid, cgid; | |
1220 | unsigned int perms, nsems; | |
1221 | int semid; | |
1222 | TIME_T otime, ctime; | |
1223 | int items_read; | |
1224 | ||
1225 | items_read = sscanf (buf, | |
1226 | "%d %d %o %u %d %d %d %d %lld %lld", | |
1227 | &key, &semid, &perms, &nsems, | |
1228 | &uid, &gid, &cuid, &cgid, | |
1229 | &otime, &ctime); | |
1230 | ||
1231 | if (items_read == 10) | |
1232 | { | |
1233 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1234 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1235 | char otime_str[32], ctime_str[32]; | |
1236 | ||
1237 | user_from_uid (user, sizeof (user), uid); | |
1238 | group_from_gid (group, sizeof (group), gid); | |
1239 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1240 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1241 | ||
1242 | time_from_time_t (otime_str, sizeof (otime_str), otime); | |
1243 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1244 | ||
1245 | buffer_xml_printf ( | |
1246 | &buffer, | |
1247 | "<item>" | |
1248 | "<column name=\"key\">%d</column>" | |
1249 | "<column name=\"semid\">%d</column>" | |
1250 | "<column name=\"permissions\">%o</column>" | |
1251 | "<column name=\"num semaphores\">%u</column>" | |
1252 | "<column name=\"user\">%s</column>" | |
1253 | "<column name=\"group\">%s</column>" | |
1254 | "<column name=\"creator user\">%s</column>" | |
1255 | "<column name=\"creator group\">%s</column>" | |
1256 | "<column name=\"last semop() time\">%s</column>" | |
1257 | "<column name=\"last semctl() time\">%s</column>" | |
1258 | "</item>", | |
1259 | key, | |
1260 | semid, | |
1261 | perms, | |
1262 | nsems, | |
1263 | user, | |
1264 | group, | |
1265 | cuser, | |
1266 | cgroup, | |
1267 | otime_str, | |
1268 | ctime_str); | |
1269 | } | |
1270 | } | |
1271 | } | |
1272 | while (!feof (fp)); | |
1273 | ||
1274 | fclose (fp); | |
1275 | } | |
1276 | ||
1277 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1278 | buf = buffer_finish (&buffer); | |
1279 | len_avail = strlen (buf); | |
1280 | } | |
1281 | ||
1282 | if (offset >= len_avail) | |
1283 | { | |
1284 | /* Done. Get rid of the buffer. */ | |
1285 | buffer_free (&buffer); | |
1286 | buf = NULL; | |
1287 | len_avail = 0; | |
1288 | return 0; | |
1289 | } | |
1290 | ||
1291 | if (len > len_avail - offset) | |
1292 | len = len_avail - offset; | |
1293 | memcpy (readbuf, buf + offset, len); | |
1294 | ||
1295 | return len; | |
1296 | } | |
1297 | ||
1298 | /* Collect data about message queues recorded in /proc and write it | |
1299 | into READBUF. */ | |
1300 | ||
1301 | static LONGEST | |
1302 | linux_xfer_osdata_msg (gdb_byte *readbuf, | |
dea80a27 | 1303 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1304 | { |
1305 | static const char *buf; | |
1306 | static LONGEST len_avail = -1; | |
1307 | static struct buffer buffer; | |
1308 | ||
1309 | if (offset == 0) | |
1310 | { | |
1311 | FILE *fp; | |
1312 | ||
1313 | if (len_avail != -1 && len_avail != 0) | |
1314 | buffer_free (&buffer); | |
1315 | len_avail = 0; | |
1316 | buf = NULL; | |
1317 | buffer_init (&buffer); | |
1318 | buffer_grow_str (&buffer, "<osdata type=\"message queues\">\n"); | |
1319 | ||
614c279d | 1320 | fp = gdb_fopen_cloexec ("/proc/sysvipc/msg", "r"); |
85d4a676 SS |
1321 | if (fp) |
1322 | { | |
1323 | char buf[8192]; | |
1324 | ||
1325 | do | |
1326 | { | |
1327 | if (fgets (buf, sizeof (buf), fp)) | |
1328 | { | |
1329 | key_t key; | |
1330 | PID_T lspid, lrpid; | |
1331 | uid_t uid, cuid; | |
1332 | gid_t gid, cgid; | |
1333 | unsigned int perms, cbytes, qnum; | |
1334 | int msqid; | |
1335 | TIME_T stime, rtime, ctime; | |
1336 | int items_read; | |
1337 | ||
1338 | items_read = sscanf (buf, | |
1339 | "%d %d %o %u %u %lld %lld %d %d %d %d %lld %lld %lld", | |
1340 | &key, &msqid, &perms, &cbytes, &qnum, | |
1341 | &lspid, &lrpid, &uid, &gid, &cuid, &cgid, | |
1342 | &stime, &rtime, &ctime); | |
1343 | ||
1344 | if (items_read == 14) | |
1345 | { | |
1346 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1347 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1348 | char lscmd[32], lrcmd[32]; | |
1349 | char stime_str[32], rtime_str[32], ctime_str[32]; | |
1350 | ||
1351 | user_from_uid (user, sizeof (user), uid); | |
1352 | group_from_gid (group, sizeof (group), gid); | |
1353 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1354 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1355 | ||
1356 | command_from_pid (lscmd, sizeof (lscmd), lspid); | |
1357 | command_from_pid (lrcmd, sizeof (lrcmd), lrpid); | |
1358 | ||
1359 | time_from_time_t (stime_str, sizeof (stime_str), stime); | |
1360 | time_from_time_t (rtime_str, sizeof (rtime_str), rtime); | |
1361 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1362 | ||
1363 | buffer_xml_printf ( | |
1364 | &buffer, | |
1365 | "<item>" | |
1366 | "<column name=\"key\">%d</column>" | |
1367 | "<column name=\"msqid\">%d</column>" | |
1368 | "<column name=\"permissions\">%o</column>" | |
1369 | "<column name=\"num used bytes\">%u</column>" | |
1370 | "<column name=\"num messages\">%u</column>" | |
1371 | "<column name=\"last msgsnd() command\">%s</column>" | |
1372 | "<column name=\"last msgrcv() command\">%s</column>" | |
1373 | "<column name=\"user\">%s</column>" | |
1374 | "<column name=\"group\">%s</column>" | |
1375 | "<column name=\"creator user\">%s</column>" | |
1376 | "<column name=\"creator group\">%s</column>" | |
1377 | "<column name=\"last msgsnd() time\">%s</column>" | |
1378 | "<column name=\"last msgrcv() time\">%s</column>" | |
1379 | "<column name=\"last msgctl() time\">%s</column>" | |
1380 | "</item>", | |
1381 | key, | |
1382 | msqid, | |
1383 | perms, | |
1384 | cbytes, | |
1385 | qnum, | |
1386 | lscmd, | |
1387 | lrcmd, | |
1388 | user, | |
1389 | group, | |
1390 | cuser, | |
1391 | cgroup, | |
1392 | stime_str, | |
1393 | rtime_str, | |
1394 | ctime_str); | |
1395 | } | |
1396 | } | |
1397 | } | |
1398 | while (!feof (fp)); | |
1399 | ||
1400 | fclose (fp); | |
1401 | } | |
1402 | ||
1403 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1404 | buf = buffer_finish (&buffer); | |
1405 | len_avail = strlen (buf); | |
1406 | } | |
1407 | ||
1408 | if (offset >= len_avail) | |
1409 | { | |
1410 | /* Done. Get rid of the buffer. */ | |
1411 | buffer_free (&buffer); | |
1412 | buf = NULL; | |
1413 | len_avail = 0; | |
1414 | return 0; | |
1415 | } | |
1416 | ||
1417 | if (len > len_avail - offset) | |
1418 | len = len_avail - offset; | |
1419 | memcpy (readbuf, buf + offset, len); | |
1420 | ||
1421 | return len; | |
1422 | } | |
1423 | ||
1424 | /* Collect data about loaded kernel modules and write it into | |
1425 | READBUF. */ | |
1426 | ||
1427 | static LONGEST | |
1428 | linux_xfer_osdata_modules (gdb_byte *readbuf, | |
dea80a27 | 1429 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1430 | { |
1431 | static const char *buf; | |
1432 | static LONGEST len_avail = -1; | |
1433 | static struct buffer buffer; | |
1434 | ||
1435 | if (offset == 0) | |
1436 | { | |
1437 | FILE *fp; | |
1438 | ||
1439 | if (len_avail != -1 && len_avail != 0) | |
1440 | buffer_free (&buffer); | |
1441 | len_avail = 0; | |
1442 | buf = NULL; | |
1443 | buffer_init (&buffer); | |
1444 | buffer_grow_str (&buffer, "<osdata type=\"modules\">\n"); | |
1445 | ||
614c279d | 1446 | fp = gdb_fopen_cloexec ("/proc/modules", "r"); |
85d4a676 SS |
1447 | if (fp) |
1448 | { | |
1449 | char buf[8192]; | |
1450 | ||
1451 | do | |
1452 | { | |
1453 | if (fgets (buf, sizeof (buf), fp)) | |
1454 | { | |
f60db4f0 | 1455 | char *name, *dependencies, *status, *tmp; |
85d4a676 SS |
1456 | unsigned int size; |
1457 | unsigned long long address; | |
1458 | int uses; | |
85d4a676 | 1459 | |
f60db4f0 GB |
1460 | name = strtok (buf, " "); |
1461 | if (name == NULL) | |
1462 | continue; | |
1463 | ||
1464 | tmp = strtok (NULL, " "); | |
1465 | if (tmp == NULL) | |
1466 | continue; | |
1467 | if (sscanf (tmp, "%u", &size) != 1) | |
1468 | continue; | |
1469 | ||
1470 | tmp = strtok (NULL, " "); | |
1471 | if (tmp == NULL) | |
1472 | continue; | |
1473 | if (sscanf (tmp, "%d", &uses) != 1) | |
1474 | continue; | |
1475 | ||
1476 | dependencies = strtok (NULL, " "); | |
1477 | if (dependencies == NULL) | |
1478 | continue; | |
1479 | ||
1480 | status = strtok (NULL, " "); | |
1481 | if (status == NULL) | |
1482 | continue; | |
1483 | ||
1484 | tmp = strtok (NULL, "\n"); | |
1485 | if (tmp == NULL) | |
1486 | continue; | |
1487 | if (sscanf (tmp, "%llx", &address) != 1) | |
1488 | continue; | |
1489 | ||
1490 | buffer_xml_printf ( | |
85d4a676 SS |
1491 | &buffer, |
1492 | "<item>" | |
1493 | "<column name=\"name\">%s</column>" | |
1494 | "<column name=\"size\">%u</column>" | |
1495 | "<column name=\"num uses\">%d</column>" | |
1496 | "<column name=\"dependencies\">%s</column>" | |
1497 | "<column name=\"status\">%s</column>" | |
1498 | "<column name=\"address\">%llx</column>" | |
1499 | "</item>", | |
1500 | name, | |
1501 | size, | |
1502 | uses, | |
1503 | dependencies, | |
1504 | status, | |
1505 | address); | |
1506 | } | |
1507 | } | |
1508 | while (!feof (fp)); | |
1509 | ||
1510 | fclose (fp); | |
1511 | } | |
1512 | ||
1513 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1514 | buf = buffer_finish (&buffer); | |
1515 | len_avail = strlen (buf); | |
1516 | } | |
1517 | ||
1518 | if (offset >= len_avail) | |
1519 | { | |
1520 | /* Done. Get rid of the buffer. */ | |
1521 | buffer_free (&buffer); | |
1522 | buf = NULL; | |
1523 | len_avail = 0; | |
1524 | return 0; | |
1525 | } | |
1526 | ||
1527 | if (len > len_avail - offset) | |
1528 | len = len_avail - offset; | |
1529 | memcpy (readbuf, buf + offset, len); | |
1530 | ||
1531 | return len; | |
1532 | } | |
1533 | ||
d26e3629 KY |
1534 | struct osdata_type { |
1535 | char *type; | |
71caed83 | 1536 | char *title; |
d26e3629 | 1537 | char *description; |
dea80a27 | 1538 | LONGEST (*getter) (gdb_byte *readbuf, ULONGEST offset, ULONGEST len); |
d26e3629 | 1539 | } osdata_table[] = { |
71caed83 | 1540 | { "processes", "Processes", "Listing of all processes", |
85d4a676 | 1541 | linux_xfer_osdata_processes }, |
71caed83 | 1542 | { "procgroups", "Process groups", "Listing of all process groups", |
85d4a676 | 1543 | linux_xfer_osdata_processgroups }, |
71caed83 | 1544 | { "threads", "Threads", "Listing of all threads", |
85d4a676 | 1545 | linux_xfer_osdata_threads }, |
71caed83 | 1546 | { "files", "File descriptors", "Listing of all file descriptors", |
85d4a676 | 1547 | linux_xfer_osdata_fds }, |
71caed83 | 1548 | { "sockets", "Sockets", "Listing of all internet-domain sockets", |
85d4a676 | 1549 | linux_xfer_osdata_isockets }, |
71caed83 | 1550 | { "shm", "Shared-memory regions", "Listing of all shared-memory regions", |
85d4a676 | 1551 | linux_xfer_osdata_shm }, |
71caed83 | 1552 | { "semaphores", "Semaphores", "Listing of all semaphores", |
85d4a676 | 1553 | linux_xfer_osdata_sem }, |
71caed83 | 1554 | { "msg", "Message queues", "Listing of all message queues", |
85d4a676 | 1555 | linux_xfer_osdata_msg }, |
71caed83 | 1556 | { "modules", "Kernel modules", "Listing of all loaded kernel modules", |
85d4a676 | 1557 | linux_xfer_osdata_modules }, |
d26e3629 KY |
1558 | { NULL, NULL, NULL } |
1559 | }; | |
1560 | ||
1561 | LONGEST | |
1562 | linux_common_xfer_osdata (const char *annex, gdb_byte *readbuf, | |
dea80a27 | 1563 | ULONGEST offset, ULONGEST len) |
d26e3629 KY |
1564 | { |
1565 | if (!annex || *annex == '\0') | |
1566 | { | |
1567 | static const char *buf; | |
1568 | static LONGEST len_avail = -1; | |
1569 | static struct buffer buffer; | |
1570 | ||
1571 | if (offset == 0) | |
1572 | { | |
1573 | int i; | |
1574 | ||
1575 | if (len_avail != -1 && len_avail != 0) | |
1576 | buffer_free (&buffer); | |
1577 | len_avail = 0; | |
1578 | buf = NULL; | |
1579 | buffer_init (&buffer); | |
1580 | buffer_grow_str (&buffer, "<osdata type=\"types\">\n"); | |
1581 | ||
1582 | for (i = 0; osdata_table[i].type; ++i) | |
1583 | buffer_xml_printf ( | |
1584 | &buffer, | |
1585 | "<item>" | |
1586 | "<column name=\"Type\">%s</column>" | |
1587 | "<column name=\"Description\">%s</column>" | |
71caed83 | 1588 | "<column name=\"Title\">%s</column>" |
d26e3629 KY |
1589 | "</item>", |
1590 | osdata_table[i].type, | |
71caed83 SS |
1591 | osdata_table[i].description, |
1592 | osdata_table[i].title); | |
d26e3629 KY |
1593 | |
1594 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1595 | buf = buffer_finish (&buffer); | |
1596 | len_avail = strlen (buf); | |
1597 | } | |
1598 | ||
1599 | if (offset >= len_avail) | |
1600 | { | |
1601 | /* Done. Get rid of the buffer. */ | |
1602 | buffer_free (&buffer); | |
1603 | buf = NULL; | |
1604 | len_avail = 0; | |
1605 | return 0; | |
1606 | } | |
1607 | ||
1608 | if (len > len_avail - offset) | |
1609 | len = len_avail - offset; | |
1610 | memcpy (readbuf, buf + offset, len); | |
1611 | ||
1612 | return len; | |
1613 | } | |
1614 | else | |
1615 | { | |
1616 | int i; | |
1617 | ||
1618 | for (i = 0; osdata_table[i].type; ++i) | |
1619 | { | |
1620 | if (strcmp (annex, osdata_table[i].type) == 0) | |
1621 | { | |
1622 | gdb_assert (readbuf); | |
1623 | ||
1624 | return (osdata_table[i].getter) (readbuf, offset, len); | |
1625 | } | |
1626 | } | |
1627 | ||
1628 | return 0; | |
1629 | } | |
1630 | } | |
1631 |