Commit | Line | Data |
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d26e3629 KY |
1 | /* Linux-specific functions to retrieve OS data. |
2 | ||
618f726f | 3 | Copyright (C) 2009-2016 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 | ||
727605ca | 20 | #include "common-defs.h" |
d26e3629 KY |
21 | #include "linux-osdata.h" |
22 | ||
23 | #include <sys/types.h> | |
b245bdfc | 24 | #include <sys/sysinfo.h> |
d26e3629 | 25 | #include <ctype.h> |
d26e3629 KY |
26 | #include <utmp.h> |
27 | #include <time.h> | |
28 | #include <unistd.h> | |
29 | #include <pwd.h> | |
30 | #include <grp.h> | |
31 | #include <netdb.h> | |
32 | #include <netinet/in.h> | |
33 | #include <arpa/inet.h> | |
34 | ||
35 | #include "xml-utils.h" | |
36 | #include "buffer.h" | |
2978b111 | 37 | #include <dirent.h> |
53ce3c39 | 38 | #include <sys/stat.h> |
614c279d | 39 | #include "filestuff.h" |
d26e3629 | 40 | |
2978b111 TT |
41 | #define NAMELEN(dirent) strlen ((dirent)->d_name) |
42 | ||
85d4a676 SS |
43 | /* Define PID_T to be a fixed size that is at least as large as pid_t, |
44 | so that reading pid values embedded in /proc works | |
45 | consistently. */ | |
46 | ||
47 | typedef long long PID_T; | |
48 | ||
49 | /* Define TIME_T to be at least as large as time_t, so that reading | |
50 | time values embedded in /proc works consistently. */ | |
51 | ||
52 | typedef long long TIME_T; | |
53 | ||
54 | #define MAX_PID_T_STRLEN (sizeof ("-9223372036854775808") - 1) | |
55 | ||
56 | /* Returns the CPU core that thread PTID is currently running on. */ | |
57 | ||
2e794194 JK |
58 | /* Compute and return the processor core of a given thread. */ |
59 | ||
d26e3629 KY |
60 | int |
61 | linux_common_core_of_thread (ptid_t ptid) | |
62 | { | |
85d4a676 | 63 | char filename[sizeof ("/proc//task//stat") + 2 * MAX_PID_T_STRLEN]; |
d26e3629 KY |
64 | FILE *f; |
65 | char *content = NULL; | |
66 | char *p; | |
67 | char *ts = 0; | |
68 | int content_read = 0; | |
69 | int i; | |
70 | int core; | |
71 | ||
85d4a676 SS |
72 | sprintf (filename, "/proc/%lld/task/%lld/stat", |
73 | (PID_T) ptid_get_pid (ptid), (PID_T) ptid_get_lwp (ptid)); | |
614c279d | 74 | f = gdb_fopen_cloexec (filename, "r"); |
d26e3629 KY |
75 | if (!f) |
76 | return -1; | |
77 | ||
78 | for (;;) | |
79 | { | |
80 | int n; | |
224c3ddb | 81 | content = (char *) xrealloc (content, content_read + 1024); |
d26e3629 KY |
82 | n = fread (content + content_read, 1, 1024, f); |
83 | content_read += n; | |
84 | if (n < 1024) | |
85 | { | |
86 | content[content_read] = '\0'; | |
87 | break; | |
88 | } | |
89 | } | |
90 | ||
184cd072 JK |
91 | /* ps command also relies on no trailing fields ever contain ')'. */ |
92 | p = strrchr (content, ')'); | |
d26e3629 KY |
93 | if (p != NULL) |
94 | p++; | |
95 | ||
96 | /* If the first field after program name has index 0, then core number is | |
97 | the field with index 36. There's no constant for that anywhere. */ | |
98 | if (p != NULL) | |
99 | p = strtok_r (p, " ", &ts); | |
100 | for (i = 0; p != NULL && i != 36; ++i) | |
101 | p = strtok_r (NULL, " ", &ts); | |
102 | ||
103 | if (p == NULL || sscanf (p, "%d", &core) == 0) | |
104 | core = -1; | |
105 | ||
106 | xfree (content); | |
107 | fclose (f); | |
108 | ||
109 | return core; | |
110 | } | |
111 | ||
85d4a676 SS |
112 | /* Finds the command-line of process PID and copies it into COMMAND. |
113 | At most MAXLEN characters are copied. If the command-line cannot | |
114 | be found, PID is copied into command in text-form. */ | |
115 | ||
d26e3629 | 116 | static void |
85d4a676 | 117 | command_from_pid (char *command, int maxlen, PID_T pid) |
d26e3629 | 118 | { |
85d4a676 | 119 | char *stat_path = xstrprintf ("/proc/%lld/stat", pid); |
614c279d | 120 | FILE *fp = gdb_fopen_cloexec (stat_path, "r"); |
d26e3629 KY |
121 | |
122 | command[0] = '\0'; | |
123 | ||
124 | if (fp) | |
125 | { | |
126 | /* sizeof (cmd) should be greater or equal to TASK_COMM_LEN (in | |
127 | include/linux/sched.h in the Linux kernel sources) plus two | |
128 | (for the brackets). */ | |
f60db4f0 | 129 | char cmd[18]; |
85d4a676 | 130 | PID_T stat_pid; |
f60db4f0 | 131 | int items_read = fscanf (fp, "%lld %17s", &stat_pid, cmd); |
d26e3629 KY |
132 | |
133 | if (items_read == 2 && pid == stat_pid) | |
134 | { | |
135 | cmd[strlen (cmd) - 1] = '\0'; /* Remove trailing parenthesis. */ | |
136 | strncpy (command, cmd + 1, maxlen); /* Ignore leading parenthesis. */ | |
137 | } | |
138 | ||
139 | fclose (fp); | |
140 | } | |
141 | else | |
142 | { | |
143 | /* Return the PID if a /proc entry for the process cannot be found. */ | |
85d4a676 | 144 | snprintf (command, maxlen, "%lld", pid); |
d26e3629 KY |
145 | } |
146 | ||
147 | command[maxlen - 1] = '\0'; /* Ensure string is null-terminated. */ | |
148 | ||
149 | xfree (stat_path); | |
150 | } | |
151 | ||
85d4a676 SS |
152 | /* Returns the command-line of the process with the given PID. The |
153 | returned string needs to be freed using xfree after use. */ | |
d26e3629 KY |
154 | |
155 | static char * | |
85d4a676 | 156 | commandline_from_pid (PID_T pid) |
d26e3629 | 157 | { |
85d4a676 | 158 | char *pathname = xstrprintf ("/proc/%lld/cmdline", pid); |
d26e3629 | 159 | char *commandline = NULL; |
614c279d | 160 | FILE *f = gdb_fopen_cloexec (pathname, "r"); |
d26e3629 KY |
161 | |
162 | if (f) | |
163 | { | |
164 | size_t len = 0; | |
165 | ||
166 | while (!feof (f)) | |
167 | { | |
168 | char buf[1024]; | |
169 | size_t read_bytes = fread (buf, 1, sizeof (buf), f); | |
170 | ||
171 | if (read_bytes) | |
172 | { | |
173 | commandline = (char *) xrealloc (commandline, len + read_bytes + 1); | |
174 | memcpy (commandline + len, buf, read_bytes); | |
175 | len += read_bytes; | |
176 | } | |
177 | } | |
178 | ||
179 | fclose (f); | |
180 | ||
181 | if (commandline) | |
182 | { | |
183 | size_t i; | |
184 | ||
185 | /* Replace null characters with spaces. */ | |
186 | for (i = 0; i < len; ++i) | |
187 | if (commandline[i] == '\0') | |
188 | commandline[i] = ' '; | |
189 | ||
190 | commandline[len] = '\0'; | |
191 | } | |
192 | else | |
193 | { | |
85d4a676 SS |
194 | /* Return the command in square brackets if the command-line |
195 | is empty. */ | |
d26e3629 KY |
196 | commandline = (char *) xmalloc (32); |
197 | commandline[0] = '['; | |
198 | command_from_pid (commandline + 1, 31, pid); | |
199 | ||
200 | len = strlen (commandline); | |
201 | if (len < 31) | |
202 | strcat (commandline, "]"); | |
203 | } | |
204 | } | |
205 | ||
206 | xfree (pathname); | |
207 | ||
208 | return commandline; | |
209 | } | |
210 | ||
85d4a676 SS |
211 | /* Finds the user name for the user UID and copies it into USER. At |
212 | most MAXLEN characters are copied. */ | |
213 | ||
d26e3629 KY |
214 | static void |
215 | user_from_uid (char *user, int maxlen, uid_t uid) | |
216 | { | |
217 | struct passwd *pwentry = getpwuid (uid); | |
218 | ||
219 | if (pwentry) | |
220 | { | |
221 | strncpy (user, pwentry->pw_name, maxlen); | |
85d4a676 SS |
222 | /* Ensure that the user name is null-terminated. */ |
223 | user[maxlen - 1] = '\0'; | |
d26e3629 KY |
224 | } |
225 | else | |
226 | user[0] = '\0'; | |
227 | } | |
228 | ||
85d4a676 SS |
229 | /* Finds the owner of process PID and returns the user id in OWNER. |
230 | Returns 0 if the owner was found, -1 otherwise. */ | |
231 | ||
d26e3629 | 232 | static int |
85d4a676 | 233 | get_process_owner (uid_t *owner, PID_T pid) |
d26e3629 KY |
234 | { |
235 | struct stat statbuf; | |
85d4a676 | 236 | char procentry[sizeof ("/proc/") + MAX_PID_T_STRLEN]; |
d26e3629 | 237 | |
85d4a676 | 238 | sprintf (procentry, "/proc/%lld", pid); |
d26e3629 KY |
239 | |
240 | if (stat (procentry, &statbuf) == 0 && S_ISDIR (statbuf.st_mode)) | |
241 | { | |
242 | *owner = statbuf.st_uid; | |
243 | return 0; | |
244 | } | |
245 | else | |
246 | return -1; | |
247 | } | |
248 | ||
85d4a676 | 249 | /* Find the CPU cores used by process PID and return them in CORES. |
184cd072 | 250 | CORES points to an array of NUM_CORES elements. */ |
d26e3629 KY |
251 | |
252 | static int | |
184cd072 | 253 | get_cores_used_by_process (PID_T pid, int *cores, const int num_cores) |
d26e3629 | 254 | { |
85d4a676 | 255 | char taskdir[sizeof ("/proc/") + MAX_PID_T_STRLEN + sizeof ("/task") - 1]; |
d26e3629 KY |
256 | DIR *dir; |
257 | struct dirent *dp; | |
258 | int task_count = 0; | |
259 | ||
85d4a676 | 260 | sprintf (taskdir, "/proc/%lld/task", pid); |
d26e3629 | 261 | dir = opendir (taskdir); |
e5798bef | 262 | if (dir) |
d26e3629 | 263 | { |
e5798bef PA |
264 | while ((dp = readdir (dir)) != NULL) |
265 | { | |
85d4a676 | 266 | PID_T tid; |
e5798bef | 267 | int core; |
d26e3629 | 268 | |
e5798bef | 269 | if (!isdigit (dp->d_name[0]) |
85d4a676 | 270 | || NAMELEN (dp) > MAX_PID_T_STRLEN) |
e5798bef | 271 | continue; |
d26e3629 | 272 | |
85d4a676 SS |
273 | sscanf (dp->d_name, "%lld", &tid); |
274 | core = linux_common_core_of_thread (ptid_build ((pid_t) pid, | |
275 | (pid_t) tid, 0)); | |
d26e3629 | 276 | |
184cd072 | 277 | if (core >= 0 && core < num_cores) |
e5798bef PA |
278 | { |
279 | ++cores[core]; | |
280 | ++task_count; | |
281 | } | |
d26e3629 | 282 | } |
d26e3629 | 283 | |
e5798bef PA |
284 | closedir (dir); |
285 | } | |
d26e3629 KY |
286 | |
287 | return task_count; | |
288 | } | |
289 | ||
290 | static LONGEST | |
291 | linux_xfer_osdata_processes (gdb_byte *readbuf, | |
dea80a27 | 292 | ULONGEST offset, ULONGEST len) |
d26e3629 KY |
293 | { |
294 | /* We make the process list snapshot when the object starts to be read. */ | |
295 | static const char *buf; | |
296 | static LONGEST len_avail = -1; | |
297 | static struct buffer buffer; | |
298 | ||
299 | if (offset == 0) | |
300 | { | |
301 | DIR *dirp; | |
302 | ||
303 | if (len_avail != -1 && len_avail != 0) | |
304 | buffer_free (&buffer); | |
305 | len_avail = 0; | |
306 | buf = NULL; | |
307 | buffer_init (&buffer); | |
308 | buffer_grow_str (&buffer, "<osdata type=\"processes\">\n"); | |
309 | ||
310 | dirp = opendir ("/proc"); | |
311 | if (dirp) | |
312 | { | |
b245bdfc | 313 | const int num_cores = sysconf (_SC_NPROCESSORS_ONLN); |
d26e3629 KY |
314 | struct dirent *dp; |
315 | ||
316 | while ((dp = readdir (dirp)) != NULL) | |
317 | { | |
85d4a676 | 318 | PID_T pid; |
d26e3629 KY |
319 | uid_t owner; |
320 | char user[UT_NAMESIZE]; | |
321 | char *command_line; | |
322 | int *cores; | |
323 | int task_count; | |
324 | char *cores_str; | |
325 | int i; | |
326 | ||
327 | if (!isdigit (dp->d_name[0]) | |
85d4a676 | 328 | || NAMELEN (dp) > MAX_PID_T_STRLEN) |
d26e3629 KY |
329 | continue; |
330 | ||
85d4a676 | 331 | sscanf (dp->d_name, "%lld", &pid); |
d26e3629 KY |
332 | command_line = commandline_from_pid (pid); |
333 | ||
334 | if (get_process_owner (&owner, pid) == 0) | |
335 | user_from_uid (user, sizeof (user), owner); | |
336 | else | |
337 | strcpy (user, "?"); | |
338 | ||
339 | /* Find CPU cores used by the process. */ | |
8d749320 | 340 | cores = XCNEWVEC (int, num_cores); |
184cd072 | 341 | task_count = get_cores_used_by_process (pid, cores, num_cores); |
d26e3629 KY |
342 | cores_str = (char *) xcalloc (task_count, sizeof ("4294967295") + 1); |
343 | ||
344 | for (i = 0; i < num_cores && task_count > 0; ++i) | |
345 | if (cores[i]) | |
346 | { | |
85d4a676 | 347 | char core_str[sizeof ("4294967295")]; |
d26e3629 KY |
348 | |
349 | sprintf (core_str, "%d", i); | |
350 | strcat (cores_str, core_str); | |
351 | ||
352 | task_count -= cores[i]; | |
353 | if (task_count > 0) | |
354 | strcat (cores_str, ","); | |
355 | } | |
356 | ||
357 | xfree (cores); | |
358 | ||
359 | buffer_xml_printf ( | |
360 | &buffer, | |
361 | "<item>" | |
85d4a676 | 362 | "<column name=\"pid\">%lld</column>" |
d26e3629 KY |
363 | "<column name=\"user\">%s</column>" |
364 | "<column name=\"command\">%s</column>" | |
365 | "<column name=\"cores\">%s</column>" | |
366 | "</item>", | |
367 | pid, | |
368 | user, | |
369 | command_line ? command_line : "", | |
370 | cores_str); | |
371 | ||
372 | xfree (command_line); | |
373 | xfree (cores_str); | |
374 | } | |
375 | ||
376 | closedir (dirp); | |
377 | } | |
378 | ||
379 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
380 | buf = buffer_finish (&buffer); | |
381 | len_avail = strlen (buf); | |
382 | } | |
383 | ||
384 | if (offset >= len_avail) | |
385 | { | |
386 | /* Done. Get rid of the buffer. */ | |
387 | buffer_free (&buffer); | |
388 | buf = NULL; | |
389 | len_avail = 0; | |
390 | return 0; | |
391 | } | |
392 | ||
393 | if (len > len_avail - offset) | |
394 | len = len_avail - offset; | |
395 | memcpy (readbuf, buf + offset, len); | |
396 | ||
397 | return len; | |
398 | } | |
399 | ||
85d4a676 SS |
400 | /* Auxiliary function used by qsort to sort processes by process |
401 | group. Compares two processes with ids PROCESS1 and PROCESS2. | |
402 | PROCESS1 comes before PROCESS2 if it has a lower process group id. | |
403 | If they belong to the same process group, PROCESS1 comes before | |
404 | PROCESS2 if it has a lower process id or is the process group | |
405 | leader. */ | |
406 | ||
407 | static int | |
408 | compare_processes (const void *process1, const void *process2) | |
409 | { | |
410 | PID_T pid1 = *((PID_T *) process1); | |
411 | PID_T pid2 = *((PID_T *) process2); | |
412 | PID_T pgid1 = *((PID_T *) process1 + 1); | |
413 | PID_T pgid2 = *((PID_T *) process2 + 1); | |
414 | ||
415 | /* Sort by PGID. */ | |
416 | if (pgid1 < pgid2) | |
417 | return -1; | |
418 | else if (pgid1 > pgid2) | |
419 | return 1; | |
420 | else | |
421 | { | |
422 | /* Process group leaders always come first, else sort by PID. */ | |
423 | if (pid1 == pgid1) | |
424 | return -1; | |
425 | else if (pid2 == pgid2) | |
426 | return 1; | |
427 | else if (pid1 < pid2) | |
428 | return -1; | |
429 | else if (pid1 > pid2) | |
430 | return 1; | |
431 | else | |
432 | return 0; | |
433 | } | |
434 | } | |
435 | ||
436 | /* Collect all process groups from /proc. */ | |
437 | ||
438 | static LONGEST | |
439 | linux_xfer_osdata_processgroups (gdb_byte *readbuf, | |
dea80a27 | 440 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
441 | { |
442 | /* We make the process list snapshot when the object starts to be read. */ | |
443 | static const char *buf; | |
444 | static LONGEST len_avail = -1; | |
445 | static struct buffer buffer; | |
446 | ||
447 | if (offset == 0) | |
448 | { | |
449 | DIR *dirp; | |
450 | ||
451 | if (len_avail != -1 && len_avail != 0) | |
452 | buffer_free (&buffer); | |
453 | len_avail = 0; | |
454 | buf = NULL; | |
455 | buffer_init (&buffer); | |
456 | buffer_grow_str (&buffer, "<osdata type=\"process groups\">\n"); | |
457 | ||
458 | dirp = opendir ("/proc"); | |
459 | if (dirp) | |
460 | { | |
461 | struct dirent *dp; | |
462 | const size_t list_block_size = 512; | |
8d749320 | 463 | PID_T *process_list = XNEWVEC (PID_T, list_block_size * 2); |
85d4a676 SS |
464 | size_t process_count = 0; |
465 | size_t i; | |
466 | ||
467 | /* Build list consisting of PIDs followed by their | |
468 | associated PGID. */ | |
469 | while ((dp = readdir (dirp)) != NULL) | |
470 | { | |
471 | PID_T pid, pgid; | |
472 | ||
473 | if (!isdigit (dp->d_name[0]) | |
474 | || NAMELEN (dp) > MAX_PID_T_STRLEN) | |
475 | continue; | |
476 | ||
477 | sscanf (dp->d_name, "%lld", &pid); | |
478 | pgid = getpgid (pid); | |
479 | ||
480 | if (pgid > 0) | |
481 | { | |
482 | process_list[2 * process_count] = pid; | |
483 | process_list[2 * process_count + 1] = pgid; | |
484 | ++process_count; | |
485 | ||
486 | /* Increase the size of the list if necessary. */ | |
487 | if (process_count % list_block_size == 0) | |
488 | process_list = (PID_T *) xrealloc ( | |
489 | process_list, | |
490 | (process_count + list_block_size) | |
491 | * 2 * sizeof (PID_T)); | |
492 | } | |
493 | } | |
494 | ||
495 | closedir (dirp); | |
496 | ||
497 | /* Sort the process list. */ | |
498 | qsort (process_list, process_count, 2 * sizeof (PID_T), | |
499 | compare_processes); | |
500 | ||
501 | for (i = 0; i < process_count; ++i) | |
502 | { | |
503 | PID_T pid = process_list[2 * i]; | |
504 | PID_T pgid = process_list[2 * i + 1]; | |
505 | char leader_command[32]; | |
506 | char *command_line; | |
507 | ||
508 | command_from_pid (leader_command, sizeof (leader_command), pgid); | |
509 | command_line = commandline_from_pid (pid); | |
510 | ||
511 | buffer_xml_printf ( | |
512 | &buffer, | |
513 | "<item>" | |
514 | "<column name=\"pgid\">%lld</column>" | |
515 | "<column name=\"leader command\">%s</column>" | |
516 | "<column name=\"pid\">%lld</column>" | |
517 | "<column name=\"command line\">%s</column>" | |
518 | "</item>", | |
519 | pgid, | |
520 | leader_command, | |
521 | pid, | |
522 | command_line ? command_line : ""); | |
523 | ||
524 | xfree (command_line); | |
525 | } | |
526 | ||
527 | xfree (process_list); | |
528 | } | |
529 | ||
530 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
531 | buf = buffer_finish (&buffer); | |
532 | len_avail = strlen (buf); | |
533 | } | |
534 | ||
535 | if (offset >= len_avail) | |
536 | { | |
537 | /* Done. Get rid of the buffer. */ | |
538 | buffer_free (&buffer); | |
539 | buf = NULL; | |
540 | len_avail = 0; | |
541 | return 0; | |
542 | } | |
543 | ||
544 | if (len > len_avail - offset) | |
545 | len = len_avail - offset; | |
546 | memcpy (readbuf, buf + offset, len); | |
547 | ||
548 | return len; | |
549 | } | |
550 | ||
551 | /* Collect all the threads in /proc by iterating through processes and | |
552 | then tasks within each process. */ | |
553 | ||
d26e3629 KY |
554 | static LONGEST |
555 | linux_xfer_osdata_threads (gdb_byte *readbuf, | |
dea80a27 | 556 | ULONGEST offset, ULONGEST len) |
d26e3629 KY |
557 | { |
558 | /* We make the process list snapshot when the object starts to be read. */ | |
559 | static const char *buf; | |
560 | static LONGEST len_avail = -1; | |
561 | static struct buffer buffer; | |
562 | ||
563 | if (offset == 0) | |
564 | { | |
565 | DIR *dirp; | |
566 | ||
567 | if (len_avail != -1 && len_avail != 0) | |
568 | buffer_free (&buffer); | |
569 | len_avail = 0; | |
570 | buf = NULL; | |
571 | buffer_init (&buffer); | |
572 | buffer_grow_str (&buffer, "<osdata type=\"threads\">\n"); | |
573 | ||
574 | dirp = opendir ("/proc"); | |
575 | if (dirp) | |
576 | { | |
577 | struct dirent *dp; | |
578 | ||
579 | while ((dp = readdir (dirp)) != NULL) | |
580 | { | |
581 | struct stat statbuf; | |
582 | char procentry[sizeof ("/proc/4294967295")]; | |
583 | ||
584 | if (!isdigit (dp->d_name[0]) | |
585 | || NAMELEN (dp) > sizeof ("4294967295") - 1) | |
586 | continue; | |
587 | ||
588 | sprintf (procentry, "/proc/%s", dp->d_name); | |
589 | if (stat (procentry, &statbuf) == 0 | |
590 | && S_ISDIR (statbuf.st_mode)) | |
591 | { | |
592 | DIR *dirp2; | |
593 | char *pathname; | |
85d4a676 | 594 | PID_T pid; |
d26e3629 KY |
595 | char command[32]; |
596 | ||
597 | pathname = xstrprintf ("/proc/%s/task", dp->d_name); | |
598 | ||
599 | pid = atoi (dp->d_name); | |
600 | command_from_pid (command, sizeof (command), pid); | |
601 | ||
602 | dirp2 = opendir (pathname); | |
603 | ||
604 | if (dirp2) | |
605 | { | |
606 | struct dirent *dp2; | |
607 | ||
608 | while ((dp2 = readdir (dirp2)) != NULL) | |
609 | { | |
85d4a676 | 610 | PID_T tid; |
d26e3629 KY |
611 | int core; |
612 | ||
613 | if (!isdigit (dp2->d_name[0]) | |
614 | || NAMELEN (dp2) > sizeof ("4294967295") - 1) | |
615 | continue; | |
616 | ||
617 | tid = atoi (dp2->d_name); | |
618 | core = linux_common_core_of_thread (ptid_build (pid, tid, 0)); | |
619 | ||
620 | buffer_xml_printf ( | |
621 | &buffer, | |
622 | "<item>" | |
85d4a676 | 623 | "<column name=\"pid\">%lld</column>" |
d26e3629 | 624 | "<column name=\"command\">%s</column>" |
85d4a676 | 625 | "<column name=\"tid\">%lld</column>" |
d26e3629 KY |
626 | "<column name=\"core\">%d</column>" |
627 | "</item>", | |
628 | pid, | |
629 | command, | |
630 | tid, | |
631 | core); | |
632 | } | |
633 | ||
634 | closedir (dirp2); | |
635 | } | |
636 | ||
637 | xfree (pathname); | |
638 | } | |
639 | } | |
640 | ||
641 | closedir (dirp); | |
642 | } | |
643 | ||
644 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
645 | buf = buffer_finish (&buffer); | |
646 | len_avail = strlen (buf); | |
647 | } | |
648 | ||
649 | if (offset >= len_avail) | |
650 | { | |
651 | /* Done. Get rid of the buffer. */ | |
652 | buffer_free (&buffer); | |
653 | buf = NULL; | |
654 | len_avail = 0; | |
655 | return 0; | |
656 | } | |
657 | ||
658 | if (len > len_avail - offset) | |
659 | len = len_avail - offset; | |
660 | memcpy (readbuf, buf + offset, len); | |
661 | ||
662 | return len; | |
663 | } | |
664 | ||
d33279b3 AT |
665 | /* Collect data about the cpus/cores on the system */ |
666 | ||
667 | static LONGEST | |
668 | linux_xfer_osdata_cpus (gdb_byte *readbuf, | |
669 | ULONGEST offset, ULONGEST len) | |
670 | { | |
671 | static const char *buf; | |
672 | static LONGEST len_avail = -1; | |
673 | static struct buffer buffer; | |
674 | ||
675 | if (offset == 0) | |
676 | { | |
677 | FILE *fp; | |
678 | int first_item = 1; | |
679 | ||
680 | if (len_avail != -1 && len_avail != 0) | |
681 | buffer_free (&buffer); | |
682 | len_avail = 0; | |
683 | buf = NULL; | |
684 | buffer_init (&buffer); | |
685 | buffer_grow_str (&buffer, "<osdata type=\"cpus\">\n"); | |
686 | ||
687 | fp = gdb_fopen_cloexec ("/proc/cpuinfo", "r"); | |
688 | if (fp != NULL) | |
689 | { | |
690 | char buf[8192]; | |
691 | ||
692 | do | |
693 | { | |
694 | if (fgets (buf, sizeof (buf), fp)) | |
695 | { | |
696 | char *key, *value; | |
697 | int i = 0; | |
698 | ||
699 | key = strtok (buf, ":"); | |
700 | if (key == NULL) | |
701 | continue; | |
702 | ||
703 | value = strtok (NULL, ":"); | |
704 | if (value == NULL) | |
705 | continue; | |
706 | ||
707 | while (key[i] != '\t' && key[i] != '\0') | |
708 | i++; | |
709 | ||
710 | key[i] = '\0'; | |
711 | ||
712 | i = 0; | |
713 | while (value[i] != '\t' && value[i] != '\0') | |
714 | i++; | |
715 | ||
716 | value[i] = '\0'; | |
717 | ||
718 | if (strcmp (key, "processor") == 0) | |
719 | { | |
720 | if (first_item) | |
721 | buffer_grow_str (&buffer, "<item>"); | |
722 | else | |
723 | buffer_grow_str (&buffer, "</item><item>"); | |
724 | ||
725 | first_item = 0; | |
726 | } | |
727 | ||
728 | buffer_xml_printf (&buffer, | |
729 | "<column name=\"%s\">%s</column>", | |
730 | key, | |
731 | value); | |
732 | } | |
733 | } | |
734 | while (!feof (fp)); | |
735 | ||
736 | if (first_item == 0) | |
737 | buffer_grow_str (&buffer, "</item>"); | |
738 | ||
739 | fclose (fp); | |
740 | } | |
741 | ||
742 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
743 | buf = buffer_finish (&buffer); | |
744 | len_avail = strlen (buf); | |
745 | } | |
746 | ||
747 | if (offset >= len_avail) | |
748 | { | |
749 | /* Done. Get rid of the buffer. */ | |
750 | buffer_free (&buffer); | |
751 | buf = NULL; | |
752 | len_avail = 0; | |
753 | return 0; | |
754 | } | |
755 | ||
756 | if (len > len_avail - offset) | |
757 | len = len_avail - offset; | |
758 | memcpy (readbuf, buf + offset, len); | |
759 | ||
760 | return len; | |
761 | } | |
762 | ||
85d4a676 SS |
763 | /* Collect all the open file descriptors found in /proc and put the details |
764 | found about them into READBUF. */ | |
765 | ||
766 | static LONGEST | |
767 | linux_xfer_osdata_fds (gdb_byte *readbuf, | |
dea80a27 | 768 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
769 | { |
770 | /* We make the process list snapshot when the object starts to be read. */ | |
771 | static const char *buf; | |
772 | static LONGEST len_avail = -1; | |
773 | static struct buffer buffer; | |
774 | ||
775 | if (offset == 0) | |
776 | { | |
777 | DIR *dirp; | |
778 | ||
779 | if (len_avail != -1 && len_avail != 0) | |
780 | buffer_free (&buffer); | |
781 | len_avail = 0; | |
782 | buf = NULL; | |
783 | buffer_init (&buffer); | |
784 | buffer_grow_str (&buffer, "<osdata type=\"files\">\n"); | |
785 | ||
786 | dirp = opendir ("/proc"); | |
787 | if (dirp) | |
788 | { | |
789 | struct dirent *dp; | |
790 | ||
791 | while ((dp = readdir (dirp)) != NULL) | |
792 | { | |
793 | struct stat statbuf; | |
794 | char procentry[sizeof ("/proc/4294967295")]; | |
795 | ||
796 | if (!isdigit (dp->d_name[0]) | |
797 | || NAMELEN (dp) > sizeof ("4294967295") - 1) | |
798 | continue; | |
799 | ||
800 | sprintf (procentry, "/proc/%s", dp->d_name); | |
801 | if (stat (procentry, &statbuf) == 0 | |
802 | && S_ISDIR (statbuf.st_mode)) | |
803 | { | |
804 | char *pathname; | |
805 | DIR *dirp2; | |
806 | PID_T pid; | |
807 | char command[32]; | |
808 | ||
809 | pid = atoi (dp->d_name); | |
810 | command_from_pid (command, sizeof (command), pid); | |
811 | ||
812 | pathname = xstrprintf ("/proc/%s/fd", dp->d_name); | |
813 | dirp2 = opendir (pathname); | |
814 | ||
815 | if (dirp2) | |
816 | { | |
817 | struct dirent *dp2; | |
818 | ||
819 | while ((dp2 = readdir (dirp2)) != NULL) | |
820 | { | |
821 | char *fdname; | |
822 | char buf[1000]; | |
823 | ssize_t rslt; | |
824 | ||
825 | if (!isdigit (dp2->d_name[0])) | |
826 | continue; | |
827 | ||
828 | fdname = xstrprintf ("%s/%s", pathname, dp2->d_name); | |
0270a750 | 829 | rslt = readlink (fdname, buf, sizeof (buf) - 1); |
85d4a676 SS |
830 | if (rslt >= 0) |
831 | buf[rslt] = '\0'; | |
832 | ||
833 | buffer_xml_printf ( | |
834 | &buffer, | |
835 | "<item>" | |
836 | "<column name=\"pid\">%s</column>" | |
837 | "<column name=\"command\">%s</column>" | |
838 | "<column name=\"file descriptor\">%s</column>" | |
839 | "<column name=\"name\">%s</column>" | |
840 | "</item>", | |
841 | dp->d_name, | |
842 | command, | |
843 | dp2->d_name, | |
844 | (rslt >= 0 ? buf : dp2->d_name)); | |
845 | } | |
846 | ||
847 | closedir (dirp2); | |
848 | } | |
849 | ||
850 | xfree (pathname); | |
851 | } | |
852 | } | |
853 | ||
854 | closedir (dirp); | |
855 | } | |
856 | ||
857 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
858 | buf = buffer_finish (&buffer); | |
859 | len_avail = strlen (buf); | |
860 | } | |
861 | ||
862 | if (offset >= len_avail) | |
863 | { | |
864 | /* Done. Get rid of the buffer. */ | |
865 | buffer_free (&buffer); | |
866 | buf = NULL; | |
867 | len_avail = 0; | |
868 | return 0; | |
869 | } | |
870 | ||
871 | if (len > len_avail - offset) | |
872 | len = len_avail - offset; | |
873 | memcpy (readbuf, buf + offset, len); | |
874 | ||
875 | return len; | |
876 | } | |
877 | ||
878 | /* Returns the socket state STATE in textual form. */ | |
879 | ||
880 | static const char * | |
881 | format_socket_state (unsigned char state) | |
882 | { | |
883 | /* Copied from include/net/tcp_states.h in the Linux kernel sources. */ | |
884 | enum { | |
885 | TCP_ESTABLISHED = 1, | |
886 | TCP_SYN_SENT, | |
887 | TCP_SYN_RECV, | |
888 | TCP_FIN_WAIT1, | |
889 | TCP_FIN_WAIT2, | |
890 | TCP_TIME_WAIT, | |
891 | TCP_CLOSE, | |
892 | TCP_CLOSE_WAIT, | |
893 | TCP_LAST_ACK, | |
894 | TCP_LISTEN, | |
895 | TCP_CLOSING | |
896 | }; | |
897 | ||
898 | switch (state) | |
899 | { | |
900 | case TCP_ESTABLISHED: | |
901 | return "ESTABLISHED"; | |
902 | case TCP_SYN_SENT: | |
903 | return "SYN_SENT"; | |
904 | case TCP_SYN_RECV: | |
905 | return "SYN_RECV"; | |
906 | case TCP_FIN_WAIT1: | |
907 | return "FIN_WAIT1"; | |
908 | case TCP_FIN_WAIT2: | |
909 | return "FIN_WAIT2"; | |
910 | case TCP_TIME_WAIT: | |
911 | return "TIME_WAIT"; | |
912 | case TCP_CLOSE: | |
913 | return "CLOSE"; | |
914 | case TCP_CLOSE_WAIT: | |
915 | return "CLOSE_WAIT"; | |
916 | case TCP_LAST_ACK: | |
917 | return "LAST_ACK"; | |
918 | case TCP_LISTEN: | |
919 | return "LISTEN"; | |
920 | case TCP_CLOSING: | |
921 | return "CLOSING"; | |
922 | default: | |
923 | return "(unknown)"; | |
924 | } | |
925 | } | |
926 | ||
927 | union socket_addr | |
928 | { | |
929 | struct sockaddr sa; | |
930 | struct sockaddr_in sin; | |
931 | struct sockaddr_in6 sin6; | |
932 | }; | |
933 | ||
934 | /* Auxiliary function used by linux_xfer_osdata_isocket. Formats | |
935 | information for all open internet sockets of type FAMILY on the | |
936 | system into BUFFER. If TCP is set, only TCP sockets are processed, | |
937 | otherwise only UDP sockets are processed. */ | |
938 | ||
939 | static void | |
940 | print_sockets (unsigned short family, int tcp, struct buffer *buffer) | |
941 | { | |
942 | const char *proc_file; | |
943 | FILE *fp; | |
944 | ||
945 | if (family == AF_INET) | |
946 | proc_file = tcp ? "/proc/net/tcp" : "/proc/net/udp"; | |
947 | else if (family == AF_INET6) | |
948 | proc_file = tcp ? "/proc/net/tcp6" : "/proc/net/udp6"; | |
949 | else | |
950 | return; | |
951 | ||
614c279d | 952 | fp = gdb_fopen_cloexec (proc_file, "r"); |
85d4a676 SS |
953 | if (fp) |
954 | { | |
955 | char buf[8192]; | |
956 | ||
957 | do | |
958 | { | |
959 | if (fgets (buf, sizeof (buf), fp)) | |
960 | { | |
961 | uid_t uid; | |
85d4a676 | 962 | unsigned int local_port, remote_port, state; |
85d4a676 | 963 | char local_address[NI_MAXHOST], remote_address[NI_MAXHOST]; |
85d4a676 SS |
964 | int result; |
965 | ||
f60db4f0 GB |
966 | #if NI_MAXHOST <= 32 |
967 | #error "local_address and remote_address buffers too small" | |
968 | #endif | |
969 | ||
85d4a676 | 970 | result = sscanf (buf, |
f60db4f0 | 971 | "%*d: %32[0-9A-F]:%X %32[0-9A-F]:%X %X %*X:%*X %*X:%*X %*X %d %*d %*u %*s\n", |
85d4a676 SS |
972 | local_address, &local_port, |
973 | remote_address, &remote_port, | |
974 | &state, | |
f60db4f0 | 975 | &uid); |
85d4a676 | 976 | |
f60db4f0 | 977 | if (result == 6) |
85d4a676 SS |
978 | { |
979 | union socket_addr locaddr, remaddr; | |
980 | size_t addr_size; | |
981 | char user[UT_NAMESIZE]; | |
982 | char local_service[NI_MAXSERV], remote_service[NI_MAXSERV]; | |
983 | ||
984 | if (family == AF_INET) | |
985 | { | |
986 | sscanf (local_address, "%X", | |
987 | &locaddr.sin.sin_addr.s_addr); | |
988 | sscanf (remote_address, "%X", | |
989 | &remaddr.sin.sin_addr.s_addr); | |
990 | ||
991 | locaddr.sin.sin_port = htons (local_port); | |
992 | remaddr.sin.sin_port = htons (remote_port); | |
993 | ||
994 | addr_size = sizeof (struct sockaddr_in); | |
995 | } | |
996 | else | |
997 | { | |
998 | sscanf (local_address, "%8X%8X%8X%8X", | |
999 | locaddr.sin6.sin6_addr.s6_addr32, | |
1000 | locaddr.sin6.sin6_addr.s6_addr32 + 1, | |
1001 | locaddr.sin6.sin6_addr.s6_addr32 + 2, | |
1002 | locaddr.sin6.sin6_addr.s6_addr32 + 3); | |
1003 | sscanf (remote_address, "%8X%8X%8X%8X", | |
1004 | remaddr.sin6.sin6_addr.s6_addr32, | |
1005 | remaddr.sin6.sin6_addr.s6_addr32 + 1, | |
1006 | remaddr.sin6.sin6_addr.s6_addr32 + 2, | |
1007 | remaddr.sin6.sin6_addr.s6_addr32 + 3); | |
1008 | ||
1009 | locaddr.sin6.sin6_port = htons (local_port); | |
1010 | remaddr.sin6.sin6_port = htons (remote_port); | |
1011 | ||
1012 | locaddr.sin6.sin6_flowinfo = 0; | |
1013 | remaddr.sin6.sin6_flowinfo = 0; | |
1014 | locaddr.sin6.sin6_scope_id = 0; | |
1015 | remaddr.sin6.sin6_scope_id = 0; | |
1016 | ||
1017 | addr_size = sizeof (struct sockaddr_in6); | |
1018 | } | |
1019 | ||
1020 | locaddr.sa.sa_family = remaddr.sa.sa_family = family; | |
1021 | ||
1022 | result = getnameinfo (&locaddr.sa, addr_size, | |
1023 | local_address, sizeof (local_address), | |
1024 | local_service, sizeof (local_service), | |
1025 | NI_NUMERICHOST | NI_NUMERICSERV | |
1026 | | (tcp ? 0 : NI_DGRAM)); | |
1027 | if (result) | |
1028 | continue; | |
1029 | ||
1030 | result = getnameinfo (&remaddr.sa, addr_size, | |
1031 | remote_address, | |
1032 | sizeof (remote_address), | |
1033 | remote_service, | |
1034 | sizeof (remote_service), | |
1035 | NI_NUMERICHOST | NI_NUMERICSERV | |
1036 | | (tcp ? 0 : NI_DGRAM)); | |
1037 | if (result) | |
1038 | continue; | |
1039 | ||
1040 | user_from_uid (user, sizeof (user), uid); | |
1041 | ||
1042 | buffer_xml_printf ( | |
1043 | buffer, | |
1044 | "<item>" | |
1045 | "<column name=\"local address\">%s</column>" | |
1046 | "<column name=\"local port\">%s</column>" | |
1047 | "<column name=\"remote address\">%s</column>" | |
1048 | "<column name=\"remote port\">%s</column>" | |
1049 | "<column name=\"state\">%s</column>" | |
1050 | "<column name=\"user\">%s</column>" | |
1051 | "<column name=\"family\">%s</column>" | |
1052 | "<column name=\"protocol\">%s</column>" | |
1053 | "</item>", | |
1054 | local_address, | |
1055 | local_service, | |
1056 | remote_address, | |
1057 | remote_service, | |
1058 | format_socket_state (state), | |
1059 | user, | |
1060 | (family == AF_INET) ? "INET" : "INET6", | |
1061 | tcp ? "STREAM" : "DGRAM"); | |
1062 | } | |
1063 | } | |
1064 | } | |
1065 | while (!feof (fp)); | |
1066 | ||
1067 | fclose (fp); | |
1068 | } | |
1069 | } | |
1070 | ||
1071 | /* Collect data about internet sockets and write it into READBUF. */ | |
1072 | ||
1073 | static LONGEST | |
1074 | linux_xfer_osdata_isockets (gdb_byte *readbuf, | |
dea80a27 | 1075 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1076 | { |
1077 | static const char *buf; | |
1078 | static LONGEST len_avail = -1; | |
1079 | static struct buffer buffer; | |
1080 | ||
1081 | if (offset == 0) | |
1082 | { | |
1083 | if (len_avail != -1 && len_avail != 0) | |
1084 | buffer_free (&buffer); | |
1085 | len_avail = 0; | |
1086 | buf = NULL; | |
1087 | buffer_init (&buffer); | |
1088 | buffer_grow_str (&buffer, "<osdata type=\"I sockets\">\n"); | |
1089 | ||
1090 | print_sockets (AF_INET, 1, &buffer); | |
1091 | print_sockets (AF_INET, 0, &buffer); | |
1092 | print_sockets (AF_INET6, 1, &buffer); | |
1093 | print_sockets (AF_INET6, 0, &buffer); | |
1094 | ||
1095 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1096 | buf = buffer_finish (&buffer); | |
1097 | len_avail = strlen (buf); | |
1098 | } | |
1099 | ||
1100 | if (offset >= len_avail) | |
1101 | { | |
1102 | /* Done. Get rid of the buffer. */ | |
1103 | buffer_free (&buffer); | |
1104 | buf = NULL; | |
1105 | len_avail = 0; | |
1106 | return 0; | |
1107 | } | |
1108 | ||
1109 | if (len > len_avail - offset) | |
1110 | len = len_avail - offset; | |
1111 | memcpy (readbuf, buf + offset, len); | |
1112 | ||
1113 | return len; | |
1114 | } | |
1115 | ||
1116 | /* Converts the time SECONDS into textual form and copies it into a | |
1117 | buffer TIME, with at most MAXLEN characters copied. */ | |
1118 | ||
1119 | static void | |
1120 | time_from_time_t (char *time, int maxlen, TIME_T seconds) | |
1121 | { | |
1122 | if (!seconds) | |
1123 | time[0] = '\0'; | |
1124 | else | |
1125 | { | |
1126 | time_t t = (time_t) seconds; | |
1127 | ||
1128 | strncpy (time, ctime (&t), maxlen); | |
1129 | time[maxlen - 1] = '\0'; | |
1130 | } | |
1131 | } | |
1132 | ||
1133 | /* Finds the group name for the group GID and copies it into GROUP. | |
1134 | At most MAXLEN characters are copied. */ | |
1135 | ||
1136 | static void | |
1137 | group_from_gid (char *group, int maxlen, gid_t gid) | |
1138 | { | |
1139 | struct group *grentry = getgrgid (gid); | |
1140 | ||
1141 | if (grentry) | |
1142 | { | |
1143 | strncpy (group, grentry->gr_name, maxlen); | |
1144 | /* Ensure that the group name is null-terminated. */ | |
1145 | group[maxlen - 1] = '\0'; | |
1146 | } | |
1147 | else | |
1148 | group[0] = '\0'; | |
1149 | } | |
1150 | ||
1151 | /* Collect data about shared memory recorded in /proc and write it | |
1152 | into READBUF. */ | |
1153 | ||
1154 | static LONGEST | |
1155 | linux_xfer_osdata_shm (gdb_byte *readbuf, | |
dea80a27 | 1156 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1157 | { |
1158 | static const char *buf; | |
1159 | static LONGEST len_avail = -1; | |
1160 | static struct buffer buffer; | |
1161 | ||
1162 | if (offset == 0) | |
1163 | { | |
1164 | FILE *fp; | |
1165 | ||
1166 | if (len_avail != -1 && len_avail != 0) | |
1167 | buffer_free (&buffer); | |
1168 | len_avail = 0; | |
1169 | buf = NULL; | |
1170 | buffer_init (&buffer); | |
1171 | buffer_grow_str (&buffer, "<osdata type=\"shared memory\">\n"); | |
1172 | ||
614c279d | 1173 | fp = gdb_fopen_cloexec ("/proc/sysvipc/shm", "r"); |
85d4a676 SS |
1174 | if (fp) |
1175 | { | |
1176 | char buf[8192]; | |
1177 | ||
1178 | do | |
1179 | { | |
1180 | if (fgets (buf, sizeof (buf), fp)) | |
1181 | { | |
1182 | key_t key; | |
1183 | uid_t uid, cuid; | |
1184 | gid_t gid, cgid; | |
1185 | PID_T cpid, lpid; | |
1186 | int shmid, size, nattch; | |
1187 | TIME_T atime, dtime, ctime; | |
1188 | unsigned int perms; | |
1189 | int items_read; | |
1190 | ||
1191 | items_read = sscanf (buf, | |
1192 | "%d %d %o %d %lld %lld %d %u %u %u %u %lld %lld %lld", | |
1193 | &key, &shmid, &perms, &size, | |
1194 | &cpid, &lpid, | |
1195 | &nattch, | |
1196 | &uid, &gid, &cuid, &cgid, | |
1197 | &atime, &dtime, &ctime); | |
1198 | ||
1199 | if (items_read == 14) | |
1200 | { | |
1201 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1202 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1203 | char ccmd[32], lcmd[32]; | |
1204 | char atime_str[32], dtime_str[32], ctime_str[32]; | |
1205 | ||
1206 | user_from_uid (user, sizeof (user), uid); | |
1207 | group_from_gid (group, sizeof (group), gid); | |
1208 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1209 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1210 | ||
1211 | command_from_pid (ccmd, sizeof (ccmd), cpid); | |
1212 | command_from_pid (lcmd, sizeof (lcmd), lpid); | |
1213 | ||
1214 | time_from_time_t (atime_str, sizeof (atime_str), atime); | |
1215 | time_from_time_t (dtime_str, sizeof (dtime_str), dtime); | |
1216 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1217 | ||
1218 | buffer_xml_printf ( | |
1219 | &buffer, | |
1220 | "<item>" | |
1221 | "<column name=\"key\">%d</column>" | |
1222 | "<column name=\"shmid\">%d</column>" | |
1223 | "<column name=\"permissions\">%o</column>" | |
1224 | "<column name=\"size\">%d</column>" | |
1225 | "<column name=\"creator command\">%s</column>" | |
1226 | "<column name=\"last op. command\">%s</column>" | |
1227 | "<column name=\"num attached\">%d</column>" | |
1228 | "<column name=\"user\">%s</column>" | |
1229 | "<column name=\"group\">%s</column>" | |
1230 | "<column name=\"creator user\">%s</column>" | |
1231 | "<column name=\"creator group\">%s</column>" | |
1232 | "<column name=\"last shmat() time\">%s</column>" | |
1233 | "<column name=\"last shmdt() time\">%s</column>" | |
1234 | "<column name=\"last shmctl() time\">%s</column>" | |
1235 | "</item>", | |
1236 | key, | |
1237 | shmid, | |
1238 | perms, | |
1239 | size, | |
1240 | ccmd, | |
1241 | lcmd, | |
1242 | nattch, | |
1243 | user, | |
1244 | group, | |
1245 | cuser, | |
1246 | cgroup, | |
1247 | atime_str, | |
1248 | dtime_str, | |
1249 | ctime_str); | |
1250 | } | |
1251 | } | |
1252 | } | |
1253 | while (!feof (fp)); | |
1254 | ||
1255 | fclose (fp); | |
1256 | } | |
1257 | ||
1258 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1259 | buf = buffer_finish (&buffer); | |
1260 | len_avail = strlen (buf); | |
1261 | } | |
1262 | ||
1263 | if (offset >= len_avail) | |
1264 | { | |
1265 | /* Done. Get rid of the buffer. */ | |
1266 | buffer_free (&buffer); | |
1267 | buf = NULL; | |
1268 | len_avail = 0; | |
1269 | return 0; | |
1270 | } | |
1271 | ||
1272 | if (len > len_avail - offset) | |
1273 | len = len_avail - offset; | |
1274 | memcpy (readbuf, buf + offset, len); | |
1275 | ||
1276 | return len; | |
1277 | } | |
1278 | ||
1279 | /* Collect data about semaphores recorded in /proc and write it | |
1280 | into READBUF. */ | |
1281 | ||
1282 | static LONGEST | |
1283 | linux_xfer_osdata_sem (gdb_byte *readbuf, | |
dea80a27 | 1284 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1285 | { |
1286 | static const char *buf; | |
1287 | static LONGEST len_avail = -1; | |
1288 | static struct buffer buffer; | |
1289 | ||
1290 | if (offset == 0) | |
1291 | { | |
1292 | FILE *fp; | |
1293 | ||
1294 | if (len_avail != -1 && len_avail != 0) | |
1295 | buffer_free (&buffer); | |
1296 | len_avail = 0; | |
1297 | buf = NULL; | |
1298 | buffer_init (&buffer); | |
1299 | buffer_grow_str (&buffer, "<osdata type=\"semaphores\">\n"); | |
1300 | ||
614c279d | 1301 | fp = gdb_fopen_cloexec ("/proc/sysvipc/sem", "r"); |
85d4a676 SS |
1302 | if (fp) |
1303 | { | |
1304 | char buf[8192]; | |
1305 | ||
1306 | do | |
1307 | { | |
1308 | if (fgets (buf, sizeof (buf), fp)) | |
1309 | { | |
1310 | key_t key; | |
1311 | uid_t uid, cuid; | |
1312 | gid_t gid, cgid; | |
1313 | unsigned int perms, nsems; | |
1314 | int semid; | |
1315 | TIME_T otime, ctime; | |
1316 | int items_read; | |
1317 | ||
1318 | items_read = sscanf (buf, | |
1319 | "%d %d %o %u %d %d %d %d %lld %lld", | |
1320 | &key, &semid, &perms, &nsems, | |
1321 | &uid, &gid, &cuid, &cgid, | |
1322 | &otime, &ctime); | |
1323 | ||
1324 | if (items_read == 10) | |
1325 | { | |
1326 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1327 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1328 | char otime_str[32], ctime_str[32]; | |
1329 | ||
1330 | user_from_uid (user, sizeof (user), uid); | |
1331 | group_from_gid (group, sizeof (group), gid); | |
1332 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1333 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1334 | ||
1335 | time_from_time_t (otime_str, sizeof (otime_str), otime); | |
1336 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1337 | ||
1338 | buffer_xml_printf ( | |
1339 | &buffer, | |
1340 | "<item>" | |
1341 | "<column name=\"key\">%d</column>" | |
1342 | "<column name=\"semid\">%d</column>" | |
1343 | "<column name=\"permissions\">%o</column>" | |
1344 | "<column name=\"num semaphores\">%u</column>" | |
1345 | "<column name=\"user\">%s</column>" | |
1346 | "<column name=\"group\">%s</column>" | |
1347 | "<column name=\"creator user\">%s</column>" | |
1348 | "<column name=\"creator group\">%s</column>" | |
1349 | "<column name=\"last semop() time\">%s</column>" | |
1350 | "<column name=\"last semctl() time\">%s</column>" | |
1351 | "</item>", | |
1352 | key, | |
1353 | semid, | |
1354 | perms, | |
1355 | nsems, | |
1356 | user, | |
1357 | group, | |
1358 | cuser, | |
1359 | cgroup, | |
1360 | otime_str, | |
1361 | ctime_str); | |
1362 | } | |
1363 | } | |
1364 | } | |
1365 | while (!feof (fp)); | |
1366 | ||
1367 | fclose (fp); | |
1368 | } | |
1369 | ||
1370 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1371 | buf = buffer_finish (&buffer); | |
1372 | len_avail = strlen (buf); | |
1373 | } | |
1374 | ||
1375 | if (offset >= len_avail) | |
1376 | { | |
1377 | /* Done. Get rid of the buffer. */ | |
1378 | buffer_free (&buffer); | |
1379 | buf = NULL; | |
1380 | len_avail = 0; | |
1381 | return 0; | |
1382 | } | |
1383 | ||
1384 | if (len > len_avail - offset) | |
1385 | len = len_avail - offset; | |
1386 | memcpy (readbuf, buf + offset, len); | |
1387 | ||
1388 | return len; | |
1389 | } | |
1390 | ||
1391 | /* Collect data about message queues recorded in /proc and write it | |
1392 | into READBUF. */ | |
1393 | ||
1394 | static LONGEST | |
1395 | linux_xfer_osdata_msg (gdb_byte *readbuf, | |
dea80a27 | 1396 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1397 | { |
1398 | static const char *buf; | |
1399 | static LONGEST len_avail = -1; | |
1400 | static struct buffer buffer; | |
1401 | ||
1402 | if (offset == 0) | |
1403 | { | |
1404 | FILE *fp; | |
1405 | ||
1406 | if (len_avail != -1 && len_avail != 0) | |
1407 | buffer_free (&buffer); | |
1408 | len_avail = 0; | |
1409 | buf = NULL; | |
1410 | buffer_init (&buffer); | |
1411 | buffer_grow_str (&buffer, "<osdata type=\"message queues\">\n"); | |
1412 | ||
614c279d | 1413 | fp = gdb_fopen_cloexec ("/proc/sysvipc/msg", "r"); |
85d4a676 SS |
1414 | if (fp) |
1415 | { | |
1416 | char buf[8192]; | |
1417 | ||
1418 | do | |
1419 | { | |
1420 | if (fgets (buf, sizeof (buf), fp)) | |
1421 | { | |
1422 | key_t key; | |
1423 | PID_T lspid, lrpid; | |
1424 | uid_t uid, cuid; | |
1425 | gid_t gid, cgid; | |
1426 | unsigned int perms, cbytes, qnum; | |
1427 | int msqid; | |
1428 | TIME_T stime, rtime, ctime; | |
1429 | int items_read; | |
1430 | ||
1431 | items_read = sscanf (buf, | |
1432 | "%d %d %o %u %u %lld %lld %d %d %d %d %lld %lld %lld", | |
1433 | &key, &msqid, &perms, &cbytes, &qnum, | |
1434 | &lspid, &lrpid, &uid, &gid, &cuid, &cgid, | |
1435 | &stime, &rtime, &ctime); | |
1436 | ||
1437 | if (items_read == 14) | |
1438 | { | |
1439 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1440 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1441 | char lscmd[32], lrcmd[32]; | |
1442 | char stime_str[32], rtime_str[32], ctime_str[32]; | |
1443 | ||
1444 | user_from_uid (user, sizeof (user), uid); | |
1445 | group_from_gid (group, sizeof (group), gid); | |
1446 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1447 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1448 | ||
1449 | command_from_pid (lscmd, sizeof (lscmd), lspid); | |
1450 | command_from_pid (lrcmd, sizeof (lrcmd), lrpid); | |
1451 | ||
1452 | time_from_time_t (stime_str, sizeof (stime_str), stime); | |
1453 | time_from_time_t (rtime_str, sizeof (rtime_str), rtime); | |
1454 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1455 | ||
1456 | buffer_xml_printf ( | |
1457 | &buffer, | |
1458 | "<item>" | |
1459 | "<column name=\"key\">%d</column>" | |
1460 | "<column name=\"msqid\">%d</column>" | |
1461 | "<column name=\"permissions\">%o</column>" | |
1462 | "<column name=\"num used bytes\">%u</column>" | |
1463 | "<column name=\"num messages\">%u</column>" | |
1464 | "<column name=\"last msgsnd() command\">%s</column>" | |
1465 | "<column name=\"last msgrcv() command\">%s</column>" | |
1466 | "<column name=\"user\">%s</column>" | |
1467 | "<column name=\"group\">%s</column>" | |
1468 | "<column name=\"creator user\">%s</column>" | |
1469 | "<column name=\"creator group\">%s</column>" | |
1470 | "<column name=\"last msgsnd() time\">%s</column>" | |
1471 | "<column name=\"last msgrcv() time\">%s</column>" | |
1472 | "<column name=\"last msgctl() time\">%s</column>" | |
1473 | "</item>", | |
1474 | key, | |
1475 | msqid, | |
1476 | perms, | |
1477 | cbytes, | |
1478 | qnum, | |
1479 | lscmd, | |
1480 | lrcmd, | |
1481 | user, | |
1482 | group, | |
1483 | cuser, | |
1484 | cgroup, | |
1485 | stime_str, | |
1486 | rtime_str, | |
1487 | ctime_str); | |
1488 | } | |
1489 | } | |
1490 | } | |
1491 | while (!feof (fp)); | |
1492 | ||
1493 | fclose (fp); | |
1494 | } | |
1495 | ||
1496 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1497 | buf = buffer_finish (&buffer); | |
1498 | len_avail = strlen (buf); | |
1499 | } | |
1500 | ||
1501 | if (offset >= len_avail) | |
1502 | { | |
1503 | /* Done. Get rid of the buffer. */ | |
1504 | buffer_free (&buffer); | |
1505 | buf = NULL; | |
1506 | len_avail = 0; | |
1507 | return 0; | |
1508 | } | |
1509 | ||
1510 | if (len > len_avail - offset) | |
1511 | len = len_avail - offset; | |
1512 | memcpy (readbuf, buf + offset, len); | |
1513 | ||
1514 | return len; | |
1515 | } | |
1516 | ||
1517 | /* Collect data about loaded kernel modules and write it into | |
1518 | READBUF. */ | |
1519 | ||
1520 | static LONGEST | |
1521 | linux_xfer_osdata_modules (gdb_byte *readbuf, | |
dea80a27 | 1522 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1523 | { |
1524 | static const char *buf; | |
1525 | static LONGEST len_avail = -1; | |
1526 | static struct buffer buffer; | |
1527 | ||
1528 | if (offset == 0) | |
1529 | { | |
1530 | FILE *fp; | |
1531 | ||
1532 | if (len_avail != -1 && len_avail != 0) | |
1533 | buffer_free (&buffer); | |
1534 | len_avail = 0; | |
1535 | buf = NULL; | |
1536 | buffer_init (&buffer); | |
1537 | buffer_grow_str (&buffer, "<osdata type=\"modules\">\n"); | |
1538 | ||
614c279d | 1539 | fp = gdb_fopen_cloexec ("/proc/modules", "r"); |
85d4a676 SS |
1540 | if (fp) |
1541 | { | |
1542 | char buf[8192]; | |
1543 | ||
1544 | do | |
1545 | { | |
1546 | if (fgets (buf, sizeof (buf), fp)) | |
1547 | { | |
f60db4f0 | 1548 | char *name, *dependencies, *status, *tmp; |
85d4a676 SS |
1549 | unsigned int size; |
1550 | unsigned long long address; | |
1551 | int uses; | |
85d4a676 | 1552 | |
f60db4f0 GB |
1553 | name = strtok (buf, " "); |
1554 | if (name == NULL) | |
1555 | continue; | |
1556 | ||
1557 | tmp = strtok (NULL, " "); | |
1558 | if (tmp == NULL) | |
1559 | continue; | |
1560 | if (sscanf (tmp, "%u", &size) != 1) | |
1561 | continue; | |
1562 | ||
1563 | tmp = strtok (NULL, " "); | |
1564 | if (tmp == NULL) | |
1565 | continue; | |
1566 | if (sscanf (tmp, "%d", &uses) != 1) | |
1567 | continue; | |
1568 | ||
1569 | dependencies = strtok (NULL, " "); | |
1570 | if (dependencies == NULL) | |
1571 | continue; | |
1572 | ||
1573 | status = strtok (NULL, " "); | |
1574 | if (status == NULL) | |
1575 | continue; | |
1576 | ||
1577 | tmp = strtok (NULL, "\n"); | |
1578 | if (tmp == NULL) | |
1579 | continue; | |
1580 | if (sscanf (tmp, "%llx", &address) != 1) | |
1581 | continue; | |
1582 | ||
1583 | buffer_xml_printf ( | |
85d4a676 SS |
1584 | &buffer, |
1585 | "<item>" | |
1586 | "<column name=\"name\">%s</column>" | |
1587 | "<column name=\"size\">%u</column>" | |
1588 | "<column name=\"num uses\">%d</column>" | |
1589 | "<column name=\"dependencies\">%s</column>" | |
1590 | "<column name=\"status\">%s</column>" | |
1591 | "<column name=\"address\">%llx</column>" | |
1592 | "</item>", | |
1593 | name, | |
1594 | size, | |
1595 | uses, | |
1596 | dependencies, | |
1597 | status, | |
1598 | address); | |
1599 | } | |
1600 | } | |
1601 | while (!feof (fp)); | |
1602 | ||
1603 | fclose (fp); | |
1604 | } | |
1605 | ||
1606 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1607 | buf = buffer_finish (&buffer); | |
1608 | len_avail = strlen (buf); | |
1609 | } | |
1610 | ||
1611 | if (offset >= len_avail) | |
1612 | { | |
1613 | /* Done. Get rid of the buffer. */ | |
1614 | buffer_free (&buffer); | |
1615 | buf = NULL; | |
1616 | len_avail = 0; | |
1617 | return 0; | |
1618 | } | |
1619 | ||
1620 | if (len > len_avail - offset) | |
1621 | len = len_avail - offset; | |
1622 | memcpy (readbuf, buf + offset, len); | |
1623 | ||
1624 | return len; | |
1625 | } | |
1626 | ||
d26e3629 KY |
1627 | struct osdata_type { |
1628 | char *type; | |
71caed83 | 1629 | char *title; |
d26e3629 | 1630 | char *description; |
dea80a27 | 1631 | LONGEST (*getter) (gdb_byte *readbuf, ULONGEST offset, ULONGEST len); |
d26e3629 | 1632 | } osdata_table[] = { |
d33279b3 AT |
1633 | { "cpus", "CPUs", "Listing of all cpus/cores on the system", |
1634 | linux_xfer_osdata_cpus }, | |
1635 | { "files", "File descriptors", "Listing of all file descriptors", | |
1636 | linux_xfer_osdata_fds }, | |
1637 | { "modules", "Kernel modules", "Listing of all loaded kernel modules", | |
1638 | linux_xfer_osdata_modules }, | |
1639 | { "msg", "Message queues", "Listing of all message queues", | |
1640 | linux_xfer_osdata_msg }, | |
71caed83 | 1641 | { "processes", "Processes", "Listing of all processes", |
85d4a676 | 1642 | linux_xfer_osdata_processes }, |
71caed83 | 1643 | { "procgroups", "Process groups", "Listing of all process groups", |
85d4a676 | 1644 | linux_xfer_osdata_processgroups }, |
71caed83 | 1645 | { "semaphores", "Semaphores", "Listing of all semaphores", |
85d4a676 | 1646 | linux_xfer_osdata_sem }, |
d33279b3 AT |
1647 | { "shm", "Shared-memory regions", "Listing of all shared-memory regions", |
1648 | linux_xfer_osdata_shm }, | |
1649 | { "sockets", "Sockets", "Listing of all internet-domain sockets", | |
1650 | linux_xfer_osdata_isockets }, | |
1651 | { "threads", "Threads", "Listing of all threads", | |
1652 | linux_xfer_osdata_threads }, | |
d26e3629 KY |
1653 | { NULL, NULL, NULL } |
1654 | }; | |
1655 | ||
1656 | LONGEST | |
1657 | linux_common_xfer_osdata (const char *annex, gdb_byte *readbuf, | |
dea80a27 | 1658 | ULONGEST offset, ULONGEST len) |
d26e3629 KY |
1659 | { |
1660 | if (!annex || *annex == '\0') | |
1661 | { | |
1662 | static const char *buf; | |
1663 | static LONGEST len_avail = -1; | |
1664 | static struct buffer buffer; | |
1665 | ||
1666 | if (offset == 0) | |
1667 | { | |
1668 | int i; | |
1669 | ||
1670 | if (len_avail != -1 && len_avail != 0) | |
1671 | buffer_free (&buffer); | |
1672 | len_avail = 0; | |
1673 | buf = NULL; | |
1674 | buffer_init (&buffer); | |
1675 | buffer_grow_str (&buffer, "<osdata type=\"types\">\n"); | |
1676 | ||
1677 | for (i = 0; osdata_table[i].type; ++i) | |
1678 | buffer_xml_printf ( | |
1679 | &buffer, | |
1680 | "<item>" | |
1681 | "<column name=\"Type\">%s</column>" | |
1682 | "<column name=\"Description\">%s</column>" | |
71caed83 | 1683 | "<column name=\"Title\">%s</column>" |
d26e3629 KY |
1684 | "</item>", |
1685 | osdata_table[i].type, | |
71caed83 SS |
1686 | osdata_table[i].description, |
1687 | osdata_table[i].title); | |
d26e3629 KY |
1688 | |
1689 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1690 | buf = buffer_finish (&buffer); | |
1691 | len_avail = strlen (buf); | |
1692 | } | |
1693 | ||
1694 | if (offset >= len_avail) | |
1695 | { | |
1696 | /* Done. Get rid of the buffer. */ | |
1697 | buffer_free (&buffer); | |
1698 | buf = NULL; | |
1699 | len_avail = 0; | |
1700 | return 0; | |
1701 | } | |
1702 | ||
1703 | if (len > len_avail - offset) | |
1704 | len = len_avail - offset; | |
1705 | memcpy (readbuf, buf + offset, len); | |
1706 | ||
1707 | return len; | |
1708 | } | |
1709 | else | |
1710 | { | |
1711 | int i; | |
1712 | ||
1713 | for (i = 0; osdata_table[i].type; ++i) | |
1714 | { | |
1715 | if (strcmp (annex, osdata_table[i].type) == 0) | |
1716 | { | |
1717 | gdb_assert (readbuf); | |
1718 | ||
1719 | return (osdata_table[i].getter) (readbuf, offset, len); | |
1720 | } | |
1721 | } | |
1722 | ||
1723 | return 0; | |
1724 | } | |
1725 | } | |
1726 |