Commit | Line | Data |
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d26e3629 KY |
1 | /* Linux-specific functions to retrieve OS data. |
2 | ||
61baf725 | 3 | Copyright (C) 2009-2017 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 | char *content = NULL; |
65 | char *p; | |
66 | char *ts = 0; | |
67 | int content_read = 0; | |
68 | int i; | |
69 | int core; | |
70 | ||
85d4a676 SS |
71 | sprintf (filename, "/proc/%lld/task/%lld/stat", |
72 | (PID_T) ptid_get_pid (ptid), (PID_T) ptid_get_lwp (ptid)); | |
d419f42d | 73 | gdb_file_up f = gdb_fopen_cloexec (filename, "r"); |
d26e3629 KY |
74 | if (!f) |
75 | return -1; | |
76 | ||
77 | for (;;) | |
78 | { | |
79 | int n; | |
224c3ddb | 80 | content = (char *) xrealloc (content, content_read + 1024); |
d419f42d | 81 | n = fread (content + content_read, 1, 1024, f.get ()); |
d26e3629 KY |
82 | content_read += n; |
83 | if (n < 1024) | |
84 | { | |
85 | content[content_read] = '\0'; | |
86 | break; | |
87 | } | |
88 | } | |
89 | ||
184cd072 JK |
90 | /* ps command also relies on no trailing fields ever contain ')'. */ |
91 | p = strrchr (content, ')'); | |
d26e3629 KY |
92 | if (p != NULL) |
93 | p++; | |
94 | ||
95 | /* If the first field after program name has index 0, then core number is | |
96 | the field with index 36. There's no constant for that anywhere. */ | |
97 | if (p != NULL) | |
98 | p = strtok_r (p, " ", &ts); | |
99 | for (i = 0; p != NULL && i != 36; ++i) | |
100 | p = strtok_r (NULL, " ", &ts); | |
101 | ||
102 | if (p == NULL || sscanf (p, "%d", &core) == 0) | |
103 | core = -1; | |
104 | ||
105 | xfree (content); | |
d26e3629 KY |
106 | |
107 | return core; | |
108 | } | |
109 | ||
85d4a676 SS |
110 | /* Finds the command-line of process PID and copies it into COMMAND. |
111 | At most MAXLEN characters are copied. If the command-line cannot | |
112 | be found, PID is copied into command in text-form. */ | |
113 | ||
d26e3629 | 114 | static void |
85d4a676 | 115 | command_from_pid (char *command, int maxlen, PID_T pid) |
d26e3629 | 116 | { |
85d4a676 | 117 | char *stat_path = xstrprintf ("/proc/%lld/stat", pid); |
d419f42d | 118 | gdb_file_up fp = gdb_fopen_cloexec (stat_path, "r"); |
d26e3629 KY |
119 | |
120 | command[0] = '\0'; | |
121 | ||
122 | if (fp) | |
123 | { | |
124 | /* sizeof (cmd) should be greater or equal to TASK_COMM_LEN (in | |
125 | include/linux/sched.h in the Linux kernel sources) plus two | |
126 | (for the brackets). */ | |
f60db4f0 | 127 | char cmd[18]; |
85d4a676 | 128 | PID_T stat_pid; |
d419f42d | 129 | int items_read = fscanf (fp.get (), "%lld %17s", &stat_pid, cmd); |
d26e3629 KY |
130 | |
131 | if (items_read == 2 && pid == stat_pid) | |
132 | { | |
133 | cmd[strlen (cmd) - 1] = '\0'; /* Remove trailing parenthesis. */ | |
134 | strncpy (command, cmd + 1, maxlen); /* Ignore leading parenthesis. */ | |
135 | } | |
d26e3629 KY |
136 | } |
137 | else | |
138 | { | |
139 | /* Return the PID if a /proc entry for the process cannot be found. */ | |
85d4a676 | 140 | snprintf (command, maxlen, "%lld", pid); |
d26e3629 KY |
141 | } |
142 | ||
143 | command[maxlen - 1] = '\0'; /* Ensure string is null-terminated. */ | |
144 | ||
145 | xfree (stat_path); | |
146 | } | |
147 | ||
85d4a676 SS |
148 | /* Returns the command-line of the process with the given PID. The |
149 | returned string needs to be freed using xfree after use. */ | |
d26e3629 KY |
150 | |
151 | static char * | |
85d4a676 | 152 | commandline_from_pid (PID_T pid) |
d26e3629 | 153 | { |
85d4a676 | 154 | char *pathname = xstrprintf ("/proc/%lld/cmdline", pid); |
d26e3629 | 155 | char *commandline = NULL; |
d419f42d | 156 | gdb_file_up f = gdb_fopen_cloexec (pathname, "r"); |
d26e3629 KY |
157 | |
158 | if (f) | |
159 | { | |
160 | size_t len = 0; | |
161 | ||
d419f42d | 162 | while (!feof (f.get ())) |
d26e3629 KY |
163 | { |
164 | char buf[1024]; | |
d419f42d | 165 | size_t read_bytes = fread (buf, 1, sizeof (buf), f.get ()); |
d26e3629 KY |
166 | |
167 | if (read_bytes) | |
168 | { | |
169 | commandline = (char *) xrealloc (commandline, len + read_bytes + 1); | |
170 | memcpy (commandline + len, buf, read_bytes); | |
171 | len += read_bytes; | |
172 | } | |
173 | } | |
174 | ||
d26e3629 KY |
175 | if (commandline) |
176 | { | |
177 | size_t i; | |
178 | ||
179 | /* Replace null characters with spaces. */ | |
180 | for (i = 0; i < len; ++i) | |
181 | if (commandline[i] == '\0') | |
182 | commandline[i] = ' '; | |
183 | ||
184 | commandline[len] = '\0'; | |
185 | } | |
186 | else | |
187 | { | |
85d4a676 SS |
188 | /* Return the command in square brackets if the command-line |
189 | is empty. */ | |
d26e3629 KY |
190 | commandline = (char *) xmalloc (32); |
191 | commandline[0] = '['; | |
192 | command_from_pid (commandline + 1, 31, pid); | |
193 | ||
194 | len = strlen (commandline); | |
195 | if (len < 31) | |
196 | strcat (commandline, "]"); | |
197 | } | |
198 | } | |
199 | ||
200 | xfree (pathname); | |
201 | ||
202 | return commandline; | |
203 | } | |
204 | ||
85d4a676 SS |
205 | /* Finds the user name for the user UID and copies it into USER. At |
206 | most MAXLEN characters are copied. */ | |
207 | ||
d26e3629 KY |
208 | static void |
209 | user_from_uid (char *user, int maxlen, uid_t uid) | |
210 | { | |
211 | struct passwd *pwentry = getpwuid (uid); | |
212 | ||
213 | if (pwentry) | |
214 | { | |
215 | strncpy (user, pwentry->pw_name, maxlen); | |
85d4a676 SS |
216 | /* Ensure that the user name is null-terminated. */ |
217 | user[maxlen - 1] = '\0'; | |
d26e3629 KY |
218 | } |
219 | else | |
220 | user[0] = '\0'; | |
221 | } | |
222 | ||
85d4a676 SS |
223 | /* Finds the owner of process PID and returns the user id in OWNER. |
224 | Returns 0 if the owner was found, -1 otherwise. */ | |
225 | ||
d26e3629 | 226 | static int |
85d4a676 | 227 | get_process_owner (uid_t *owner, PID_T pid) |
d26e3629 KY |
228 | { |
229 | struct stat statbuf; | |
85d4a676 | 230 | char procentry[sizeof ("/proc/") + MAX_PID_T_STRLEN]; |
d26e3629 | 231 | |
85d4a676 | 232 | sprintf (procentry, "/proc/%lld", pid); |
d26e3629 KY |
233 | |
234 | if (stat (procentry, &statbuf) == 0 && S_ISDIR (statbuf.st_mode)) | |
235 | { | |
236 | *owner = statbuf.st_uid; | |
237 | return 0; | |
238 | } | |
239 | else | |
240 | return -1; | |
241 | } | |
242 | ||
85d4a676 | 243 | /* Find the CPU cores used by process PID and return them in CORES. |
184cd072 | 244 | CORES points to an array of NUM_CORES elements. */ |
d26e3629 KY |
245 | |
246 | static int | |
184cd072 | 247 | get_cores_used_by_process (PID_T pid, int *cores, const int num_cores) |
d26e3629 | 248 | { |
85d4a676 | 249 | char taskdir[sizeof ("/proc/") + MAX_PID_T_STRLEN + sizeof ("/task") - 1]; |
d26e3629 KY |
250 | DIR *dir; |
251 | struct dirent *dp; | |
252 | int task_count = 0; | |
253 | ||
85d4a676 | 254 | sprintf (taskdir, "/proc/%lld/task", pid); |
d26e3629 | 255 | dir = opendir (taskdir); |
e5798bef | 256 | if (dir) |
d26e3629 | 257 | { |
e5798bef PA |
258 | while ((dp = readdir (dir)) != NULL) |
259 | { | |
85d4a676 | 260 | PID_T tid; |
e5798bef | 261 | int core; |
d26e3629 | 262 | |
e5798bef | 263 | if (!isdigit (dp->d_name[0]) |
85d4a676 | 264 | || NAMELEN (dp) > MAX_PID_T_STRLEN) |
e5798bef | 265 | continue; |
d26e3629 | 266 | |
85d4a676 SS |
267 | sscanf (dp->d_name, "%lld", &tid); |
268 | core = linux_common_core_of_thread (ptid_build ((pid_t) pid, | |
269 | (pid_t) tid, 0)); | |
d26e3629 | 270 | |
184cd072 | 271 | if (core >= 0 && core < num_cores) |
e5798bef PA |
272 | { |
273 | ++cores[core]; | |
274 | ++task_count; | |
275 | } | |
d26e3629 | 276 | } |
d26e3629 | 277 | |
e5798bef PA |
278 | closedir (dir); |
279 | } | |
d26e3629 KY |
280 | |
281 | return task_count; | |
282 | } | |
283 | ||
284 | static LONGEST | |
285 | linux_xfer_osdata_processes (gdb_byte *readbuf, | |
dea80a27 | 286 | ULONGEST offset, ULONGEST len) |
d26e3629 KY |
287 | { |
288 | /* We make the process list snapshot when the object starts to be read. */ | |
289 | static const char *buf; | |
290 | static LONGEST len_avail = -1; | |
291 | static struct buffer buffer; | |
292 | ||
293 | if (offset == 0) | |
294 | { | |
295 | DIR *dirp; | |
296 | ||
297 | if (len_avail != -1 && len_avail != 0) | |
298 | buffer_free (&buffer); | |
299 | len_avail = 0; | |
300 | buf = NULL; | |
301 | buffer_init (&buffer); | |
302 | buffer_grow_str (&buffer, "<osdata type=\"processes\">\n"); | |
303 | ||
304 | dirp = opendir ("/proc"); | |
305 | if (dirp) | |
306 | { | |
b245bdfc | 307 | const int num_cores = sysconf (_SC_NPROCESSORS_ONLN); |
d26e3629 KY |
308 | struct dirent *dp; |
309 | ||
310 | while ((dp = readdir (dirp)) != NULL) | |
311 | { | |
85d4a676 | 312 | PID_T pid; |
d26e3629 KY |
313 | uid_t owner; |
314 | char user[UT_NAMESIZE]; | |
315 | char *command_line; | |
316 | int *cores; | |
317 | int task_count; | |
318 | char *cores_str; | |
319 | int i; | |
320 | ||
321 | if (!isdigit (dp->d_name[0]) | |
85d4a676 | 322 | || NAMELEN (dp) > MAX_PID_T_STRLEN) |
d26e3629 KY |
323 | continue; |
324 | ||
85d4a676 | 325 | sscanf (dp->d_name, "%lld", &pid); |
d26e3629 KY |
326 | command_line = commandline_from_pid (pid); |
327 | ||
328 | if (get_process_owner (&owner, pid) == 0) | |
329 | user_from_uid (user, sizeof (user), owner); | |
330 | else | |
331 | strcpy (user, "?"); | |
332 | ||
333 | /* Find CPU cores used by the process. */ | |
8d749320 | 334 | cores = XCNEWVEC (int, num_cores); |
184cd072 | 335 | task_count = get_cores_used_by_process (pid, cores, num_cores); |
d26e3629 KY |
336 | cores_str = (char *) xcalloc (task_count, sizeof ("4294967295") + 1); |
337 | ||
338 | for (i = 0; i < num_cores && task_count > 0; ++i) | |
339 | if (cores[i]) | |
340 | { | |
85d4a676 | 341 | char core_str[sizeof ("4294967295")]; |
d26e3629 KY |
342 | |
343 | sprintf (core_str, "%d", i); | |
344 | strcat (cores_str, core_str); | |
345 | ||
346 | task_count -= cores[i]; | |
347 | if (task_count > 0) | |
348 | strcat (cores_str, ","); | |
349 | } | |
350 | ||
351 | xfree (cores); | |
352 | ||
353 | buffer_xml_printf ( | |
354 | &buffer, | |
355 | "<item>" | |
85d4a676 | 356 | "<column name=\"pid\">%lld</column>" |
d26e3629 KY |
357 | "<column name=\"user\">%s</column>" |
358 | "<column name=\"command\">%s</column>" | |
359 | "<column name=\"cores\">%s</column>" | |
360 | "</item>", | |
361 | pid, | |
362 | user, | |
363 | command_line ? command_line : "", | |
364 | cores_str); | |
365 | ||
366 | xfree (command_line); | |
367 | xfree (cores_str); | |
368 | } | |
369 | ||
370 | closedir (dirp); | |
371 | } | |
372 | ||
373 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
374 | buf = buffer_finish (&buffer); | |
375 | len_avail = strlen (buf); | |
376 | } | |
377 | ||
378 | if (offset >= len_avail) | |
379 | { | |
380 | /* Done. Get rid of the buffer. */ | |
381 | buffer_free (&buffer); | |
382 | buf = NULL; | |
383 | len_avail = 0; | |
384 | return 0; | |
385 | } | |
386 | ||
387 | if (len > len_avail - offset) | |
388 | len = len_avail - offset; | |
389 | memcpy (readbuf, buf + offset, len); | |
390 | ||
391 | return len; | |
392 | } | |
393 | ||
85d4a676 SS |
394 | /* Auxiliary function used by qsort to sort processes by process |
395 | group. Compares two processes with ids PROCESS1 and PROCESS2. | |
396 | PROCESS1 comes before PROCESS2 if it has a lower process group id. | |
397 | If they belong to the same process group, PROCESS1 comes before | |
398 | PROCESS2 if it has a lower process id or is the process group | |
399 | leader. */ | |
400 | ||
401 | static int | |
402 | compare_processes (const void *process1, const void *process2) | |
403 | { | |
404 | PID_T pid1 = *((PID_T *) process1); | |
405 | PID_T pid2 = *((PID_T *) process2); | |
406 | PID_T pgid1 = *((PID_T *) process1 + 1); | |
407 | PID_T pgid2 = *((PID_T *) process2 + 1); | |
408 | ||
409 | /* Sort by PGID. */ | |
410 | if (pgid1 < pgid2) | |
411 | return -1; | |
412 | else if (pgid1 > pgid2) | |
413 | return 1; | |
414 | else | |
415 | { | |
416 | /* Process group leaders always come first, else sort by PID. */ | |
417 | if (pid1 == pgid1) | |
418 | return -1; | |
419 | else if (pid2 == pgid2) | |
420 | return 1; | |
421 | else if (pid1 < pid2) | |
422 | return -1; | |
423 | else if (pid1 > pid2) | |
424 | return 1; | |
425 | else | |
426 | return 0; | |
427 | } | |
428 | } | |
429 | ||
430 | /* Collect all process groups from /proc. */ | |
431 | ||
432 | static LONGEST | |
433 | linux_xfer_osdata_processgroups (gdb_byte *readbuf, | |
dea80a27 | 434 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
435 | { |
436 | /* We make the process list snapshot when the object starts to be read. */ | |
437 | static const char *buf; | |
438 | static LONGEST len_avail = -1; | |
439 | static struct buffer buffer; | |
440 | ||
441 | if (offset == 0) | |
442 | { | |
443 | DIR *dirp; | |
444 | ||
445 | if (len_avail != -1 && len_avail != 0) | |
446 | buffer_free (&buffer); | |
447 | len_avail = 0; | |
448 | buf = NULL; | |
449 | buffer_init (&buffer); | |
450 | buffer_grow_str (&buffer, "<osdata type=\"process groups\">\n"); | |
451 | ||
452 | dirp = opendir ("/proc"); | |
453 | if (dirp) | |
454 | { | |
455 | struct dirent *dp; | |
456 | const size_t list_block_size = 512; | |
8d749320 | 457 | PID_T *process_list = XNEWVEC (PID_T, list_block_size * 2); |
85d4a676 SS |
458 | size_t process_count = 0; |
459 | size_t i; | |
460 | ||
461 | /* Build list consisting of PIDs followed by their | |
462 | associated PGID. */ | |
463 | while ((dp = readdir (dirp)) != NULL) | |
464 | { | |
465 | PID_T pid, pgid; | |
466 | ||
467 | if (!isdigit (dp->d_name[0]) | |
468 | || NAMELEN (dp) > MAX_PID_T_STRLEN) | |
469 | continue; | |
470 | ||
471 | sscanf (dp->d_name, "%lld", &pid); | |
472 | pgid = getpgid (pid); | |
473 | ||
474 | if (pgid > 0) | |
475 | { | |
476 | process_list[2 * process_count] = pid; | |
477 | process_list[2 * process_count + 1] = pgid; | |
478 | ++process_count; | |
479 | ||
480 | /* Increase the size of the list if necessary. */ | |
481 | if (process_count % list_block_size == 0) | |
482 | process_list = (PID_T *) xrealloc ( | |
483 | process_list, | |
484 | (process_count + list_block_size) | |
485 | * 2 * sizeof (PID_T)); | |
486 | } | |
487 | } | |
488 | ||
489 | closedir (dirp); | |
490 | ||
491 | /* Sort the process list. */ | |
492 | qsort (process_list, process_count, 2 * sizeof (PID_T), | |
493 | compare_processes); | |
494 | ||
495 | for (i = 0; i < process_count; ++i) | |
496 | { | |
497 | PID_T pid = process_list[2 * i]; | |
498 | PID_T pgid = process_list[2 * i + 1]; | |
499 | char leader_command[32]; | |
500 | char *command_line; | |
501 | ||
502 | command_from_pid (leader_command, sizeof (leader_command), pgid); | |
503 | command_line = commandline_from_pid (pid); | |
504 | ||
505 | buffer_xml_printf ( | |
506 | &buffer, | |
507 | "<item>" | |
508 | "<column name=\"pgid\">%lld</column>" | |
509 | "<column name=\"leader command\">%s</column>" | |
510 | "<column name=\"pid\">%lld</column>" | |
511 | "<column name=\"command line\">%s</column>" | |
512 | "</item>", | |
513 | pgid, | |
514 | leader_command, | |
515 | pid, | |
516 | command_line ? command_line : ""); | |
517 | ||
518 | xfree (command_line); | |
519 | } | |
520 | ||
521 | xfree (process_list); | |
522 | } | |
523 | ||
524 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
525 | buf = buffer_finish (&buffer); | |
526 | len_avail = strlen (buf); | |
527 | } | |
528 | ||
529 | if (offset >= len_avail) | |
530 | { | |
531 | /* Done. Get rid of the buffer. */ | |
532 | buffer_free (&buffer); | |
533 | buf = NULL; | |
534 | len_avail = 0; | |
535 | return 0; | |
536 | } | |
537 | ||
538 | if (len > len_avail - offset) | |
539 | len = len_avail - offset; | |
540 | memcpy (readbuf, buf + offset, len); | |
541 | ||
542 | return len; | |
543 | } | |
544 | ||
545 | /* Collect all the threads in /proc by iterating through processes and | |
546 | then tasks within each process. */ | |
547 | ||
d26e3629 KY |
548 | static LONGEST |
549 | linux_xfer_osdata_threads (gdb_byte *readbuf, | |
dea80a27 | 550 | ULONGEST offset, ULONGEST len) |
d26e3629 KY |
551 | { |
552 | /* We make the process list snapshot when the object starts to be read. */ | |
553 | static const char *buf; | |
554 | static LONGEST len_avail = -1; | |
555 | static struct buffer buffer; | |
556 | ||
557 | if (offset == 0) | |
558 | { | |
559 | DIR *dirp; | |
560 | ||
561 | if (len_avail != -1 && len_avail != 0) | |
562 | buffer_free (&buffer); | |
563 | len_avail = 0; | |
564 | buf = NULL; | |
565 | buffer_init (&buffer); | |
566 | buffer_grow_str (&buffer, "<osdata type=\"threads\">\n"); | |
567 | ||
568 | dirp = opendir ("/proc"); | |
569 | if (dirp) | |
570 | { | |
571 | struct dirent *dp; | |
572 | ||
573 | while ((dp = readdir (dirp)) != NULL) | |
574 | { | |
575 | struct stat statbuf; | |
576 | char procentry[sizeof ("/proc/4294967295")]; | |
577 | ||
578 | if (!isdigit (dp->d_name[0]) | |
579 | || NAMELEN (dp) > sizeof ("4294967295") - 1) | |
580 | continue; | |
581 | ||
97e64e5a YQ |
582 | xsnprintf (procentry, sizeof (procentry), "/proc/%s", |
583 | dp->d_name); | |
d26e3629 KY |
584 | if (stat (procentry, &statbuf) == 0 |
585 | && S_ISDIR (statbuf.st_mode)) | |
586 | { | |
587 | DIR *dirp2; | |
588 | char *pathname; | |
85d4a676 | 589 | PID_T pid; |
d26e3629 KY |
590 | char command[32]; |
591 | ||
592 | pathname = xstrprintf ("/proc/%s/task", dp->d_name); | |
593 | ||
594 | pid = atoi (dp->d_name); | |
595 | command_from_pid (command, sizeof (command), pid); | |
596 | ||
597 | dirp2 = opendir (pathname); | |
598 | ||
599 | if (dirp2) | |
600 | { | |
601 | struct dirent *dp2; | |
602 | ||
603 | while ((dp2 = readdir (dirp2)) != NULL) | |
604 | { | |
85d4a676 | 605 | PID_T tid; |
d26e3629 KY |
606 | int core; |
607 | ||
608 | if (!isdigit (dp2->d_name[0]) | |
609 | || NAMELEN (dp2) > sizeof ("4294967295") - 1) | |
610 | continue; | |
611 | ||
612 | tid = atoi (dp2->d_name); | |
613 | core = linux_common_core_of_thread (ptid_build (pid, tid, 0)); | |
614 | ||
615 | buffer_xml_printf ( | |
616 | &buffer, | |
617 | "<item>" | |
85d4a676 | 618 | "<column name=\"pid\">%lld</column>" |
d26e3629 | 619 | "<column name=\"command\">%s</column>" |
85d4a676 | 620 | "<column name=\"tid\">%lld</column>" |
d26e3629 KY |
621 | "<column name=\"core\">%d</column>" |
622 | "</item>", | |
623 | pid, | |
624 | command, | |
625 | tid, | |
626 | core); | |
627 | } | |
628 | ||
629 | closedir (dirp2); | |
630 | } | |
631 | ||
632 | xfree (pathname); | |
633 | } | |
634 | } | |
635 | ||
636 | closedir (dirp); | |
637 | } | |
638 | ||
639 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
640 | buf = buffer_finish (&buffer); | |
641 | len_avail = strlen (buf); | |
642 | } | |
643 | ||
644 | if (offset >= len_avail) | |
645 | { | |
646 | /* Done. Get rid of the buffer. */ | |
647 | buffer_free (&buffer); | |
648 | buf = NULL; | |
649 | len_avail = 0; | |
650 | return 0; | |
651 | } | |
652 | ||
653 | if (len > len_avail - offset) | |
654 | len = len_avail - offset; | |
655 | memcpy (readbuf, buf + offset, len); | |
656 | ||
657 | return len; | |
658 | } | |
659 | ||
d33279b3 AT |
660 | /* Collect data about the cpus/cores on the system */ |
661 | ||
662 | static LONGEST | |
663 | linux_xfer_osdata_cpus (gdb_byte *readbuf, | |
664 | ULONGEST offset, ULONGEST len) | |
665 | { | |
666 | static const char *buf; | |
667 | static LONGEST len_avail = -1; | |
668 | static struct buffer buffer; | |
669 | ||
670 | if (offset == 0) | |
671 | { | |
d33279b3 AT |
672 | int first_item = 1; |
673 | ||
674 | if (len_avail != -1 && len_avail != 0) | |
675 | buffer_free (&buffer); | |
676 | len_avail = 0; | |
677 | buf = NULL; | |
678 | buffer_init (&buffer); | |
679 | buffer_grow_str (&buffer, "<osdata type=\"cpus\">\n"); | |
680 | ||
d419f42d | 681 | gdb_file_up fp = gdb_fopen_cloexec ("/proc/cpuinfo", "r"); |
d33279b3 AT |
682 | if (fp != NULL) |
683 | { | |
684 | char buf[8192]; | |
685 | ||
686 | do | |
687 | { | |
d419f42d | 688 | if (fgets (buf, sizeof (buf), fp.get ())) |
d33279b3 AT |
689 | { |
690 | char *key, *value; | |
691 | int i = 0; | |
692 | ||
693 | key = strtok (buf, ":"); | |
694 | if (key == NULL) | |
695 | continue; | |
696 | ||
697 | value = strtok (NULL, ":"); | |
698 | if (value == NULL) | |
699 | continue; | |
700 | ||
701 | while (key[i] != '\t' && key[i] != '\0') | |
702 | i++; | |
703 | ||
704 | key[i] = '\0'; | |
705 | ||
706 | i = 0; | |
707 | while (value[i] != '\t' && value[i] != '\0') | |
708 | i++; | |
709 | ||
710 | value[i] = '\0'; | |
711 | ||
712 | if (strcmp (key, "processor") == 0) | |
713 | { | |
714 | if (first_item) | |
715 | buffer_grow_str (&buffer, "<item>"); | |
716 | else | |
717 | buffer_grow_str (&buffer, "</item><item>"); | |
718 | ||
719 | first_item = 0; | |
720 | } | |
721 | ||
722 | buffer_xml_printf (&buffer, | |
723 | "<column name=\"%s\">%s</column>", | |
724 | key, | |
725 | value); | |
726 | } | |
727 | } | |
d419f42d | 728 | while (!feof (fp.get ())); |
d33279b3 AT |
729 | |
730 | if (first_item == 0) | |
731 | buffer_grow_str (&buffer, "</item>"); | |
d33279b3 AT |
732 | } |
733 | ||
734 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
735 | buf = buffer_finish (&buffer); | |
736 | len_avail = strlen (buf); | |
737 | } | |
738 | ||
739 | if (offset >= len_avail) | |
740 | { | |
741 | /* Done. Get rid of the buffer. */ | |
742 | buffer_free (&buffer); | |
743 | buf = NULL; | |
744 | len_avail = 0; | |
745 | return 0; | |
746 | } | |
747 | ||
748 | if (len > len_avail - offset) | |
749 | len = len_avail - offset; | |
750 | memcpy (readbuf, buf + offset, len); | |
751 | ||
752 | return len; | |
753 | } | |
754 | ||
85d4a676 SS |
755 | /* Collect all the open file descriptors found in /proc and put the details |
756 | found about them into READBUF. */ | |
757 | ||
758 | static LONGEST | |
759 | linux_xfer_osdata_fds (gdb_byte *readbuf, | |
dea80a27 | 760 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
761 | { |
762 | /* We make the process list snapshot when the object starts to be read. */ | |
763 | static const char *buf; | |
764 | static LONGEST len_avail = -1; | |
765 | static struct buffer buffer; | |
766 | ||
767 | if (offset == 0) | |
768 | { | |
769 | DIR *dirp; | |
770 | ||
771 | if (len_avail != -1 && len_avail != 0) | |
772 | buffer_free (&buffer); | |
773 | len_avail = 0; | |
774 | buf = NULL; | |
775 | buffer_init (&buffer); | |
776 | buffer_grow_str (&buffer, "<osdata type=\"files\">\n"); | |
777 | ||
778 | dirp = opendir ("/proc"); | |
779 | if (dirp) | |
780 | { | |
781 | struct dirent *dp; | |
782 | ||
783 | while ((dp = readdir (dirp)) != NULL) | |
784 | { | |
785 | struct stat statbuf; | |
786 | char procentry[sizeof ("/proc/4294967295")]; | |
787 | ||
788 | if (!isdigit (dp->d_name[0]) | |
789 | || NAMELEN (dp) > sizeof ("4294967295") - 1) | |
790 | continue; | |
791 | ||
97e64e5a YQ |
792 | xsnprintf (procentry, sizeof (procentry), "/proc/%s", |
793 | dp->d_name); | |
85d4a676 SS |
794 | if (stat (procentry, &statbuf) == 0 |
795 | && S_ISDIR (statbuf.st_mode)) | |
796 | { | |
797 | char *pathname; | |
798 | DIR *dirp2; | |
799 | PID_T pid; | |
800 | char command[32]; | |
801 | ||
802 | pid = atoi (dp->d_name); | |
803 | command_from_pid (command, sizeof (command), pid); | |
804 | ||
805 | pathname = xstrprintf ("/proc/%s/fd", dp->d_name); | |
806 | dirp2 = opendir (pathname); | |
807 | ||
808 | if (dirp2) | |
809 | { | |
810 | struct dirent *dp2; | |
811 | ||
812 | while ((dp2 = readdir (dirp2)) != NULL) | |
813 | { | |
814 | char *fdname; | |
815 | char buf[1000]; | |
816 | ssize_t rslt; | |
817 | ||
818 | if (!isdigit (dp2->d_name[0])) | |
819 | continue; | |
820 | ||
821 | fdname = xstrprintf ("%s/%s", pathname, dp2->d_name); | |
0270a750 | 822 | rslt = readlink (fdname, buf, sizeof (buf) - 1); |
85d4a676 SS |
823 | if (rslt >= 0) |
824 | buf[rslt] = '\0'; | |
825 | ||
826 | buffer_xml_printf ( | |
827 | &buffer, | |
828 | "<item>" | |
829 | "<column name=\"pid\">%s</column>" | |
830 | "<column name=\"command\">%s</column>" | |
831 | "<column name=\"file descriptor\">%s</column>" | |
832 | "<column name=\"name\">%s</column>" | |
833 | "</item>", | |
834 | dp->d_name, | |
835 | command, | |
836 | dp2->d_name, | |
837 | (rslt >= 0 ? buf : dp2->d_name)); | |
838 | } | |
839 | ||
840 | closedir (dirp2); | |
841 | } | |
842 | ||
843 | xfree (pathname); | |
844 | } | |
845 | } | |
846 | ||
847 | closedir (dirp); | |
848 | } | |
849 | ||
850 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
851 | buf = buffer_finish (&buffer); | |
852 | len_avail = strlen (buf); | |
853 | } | |
854 | ||
855 | if (offset >= len_avail) | |
856 | { | |
857 | /* Done. Get rid of the buffer. */ | |
858 | buffer_free (&buffer); | |
859 | buf = NULL; | |
860 | len_avail = 0; | |
861 | return 0; | |
862 | } | |
863 | ||
864 | if (len > len_avail - offset) | |
865 | len = len_avail - offset; | |
866 | memcpy (readbuf, buf + offset, len); | |
867 | ||
868 | return len; | |
869 | } | |
870 | ||
871 | /* Returns the socket state STATE in textual form. */ | |
872 | ||
873 | static const char * | |
874 | format_socket_state (unsigned char state) | |
875 | { | |
876 | /* Copied from include/net/tcp_states.h in the Linux kernel sources. */ | |
877 | enum { | |
878 | TCP_ESTABLISHED = 1, | |
879 | TCP_SYN_SENT, | |
880 | TCP_SYN_RECV, | |
881 | TCP_FIN_WAIT1, | |
882 | TCP_FIN_WAIT2, | |
883 | TCP_TIME_WAIT, | |
884 | TCP_CLOSE, | |
885 | TCP_CLOSE_WAIT, | |
886 | TCP_LAST_ACK, | |
887 | TCP_LISTEN, | |
888 | TCP_CLOSING | |
889 | }; | |
890 | ||
891 | switch (state) | |
892 | { | |
893 | case TCP_ESTABLISHED: | |
894 | return "ESTABLISHED"; | |
895 | case TCP_SYN_SENT: | |
896 | return "SYN_SENT"; | |
897 | case TCP_SYN_RECV: | |
898 | return "SYN_RECV"; | |
899 | case TCP_FIN_WAIT1: | |
900 | return "FIN_WAIT1"; | |
901 | case TCP_FIN_WAIT2: | |
902 | return "FIN_WAIT2"; | |
903 | case TCP_TIME_WAIT: | |
904 | return "TIME_WAIT"; | |
905 | case TCP_CLOSE: | |
906 | return "CLOSE"; | |
907 | case TCP_CLOSE_WAIT: | |
908 | return "CLOSE_WAIT"; | |
909 | case TCP_LAST_ACK: | |
910 | return "LAST_ACK"; | |
911 | case TCP_LISTEN: | |
912 | return "LISTEN"; | |
913 | case TCP_CLOSING: | |
914 | return "CLOSING"; | |
915 | default: | |
916 | return "(unknown)"; | |
917 | } | |
918 | } | |
919 | ||
920 | union socket_addr | |
921 | { | |
922 | struct sockaddr sa; | |
923 | struct sockaddr_in sin; | |
924 | struct sockaddr_in6 sin6; | |
925 | }; | |
926 | ||
927 | /* Auxiliary function used by linux_xfer_osdata_isocket. Formats | |
928 | information for all open internet sockets of type FAMILY on the | |
929 | system into BUFFER. If TCP is set, only TCP sockets are processed, | |
930 | otherwise only UDP sockets are processed. */ | |
931 | ||
932 | static void | |
933 | print_sockets (unsigned short family, int tcp, struct buffer *buffer) | |
934 | { | |
935 | const char *proc_file; | |
85d4a676 SS |
936 | |
937 | if (family == AF_INET) | |
938 | proc_file = tcp ? "/proc/net/tcp" : "/proc/net/udp"; | |
939 | else if (family == AF_INET6) | |
940 | proc_file = tcp ? "/proc/net/tcp6" : "/proc/net/udp6"; | |
941 | else | |
942 | return; | |
943 | ||
d419f42d | 944 | gdb_file_up fp = gdb_fopen_cloexec (proc_file, "r"); |
85d4a676 SS |
945 | if (fp) |
946 | { | |
947 | char buf[8192]; | |
948 | ||
949 | do | |
950 | { | |
d419f42d | 951 | if (fgets (buf, sizeof (buf), fp.get ())) |
85d4a676 SS |
952 | { |
953 | uid_t uid; | |
85d4a676 | 954 | unsigned int local_port, remote_port, state; |
85d4a676 | 955 | char local_address[NI_MAXHOST], remote_address[NI_MAXHOST]; |
85d4a676 SS |
956 | int result; |
957 | ||
f60db4f0 GB |
958 | #if NI_MAXHOST <= 32 |
959 | #error "local_address and remote_address buffers too small" | |
960 | #endif | |
961 | ||
85d4a676 | 962 | result = sscanf (buf, |
f60db4f0 | 963 | "%*d: %32[0-9A-F]:%X %32[0-9A-F]:%X %X %*X:%*X %*X:%*X %*X %d %*d %*u %*s\n", |
85d4a676 SS |
964 | local_address, &local_port, |
965 | remote_address, &remote_port, | |
966 | &state, | |
f60db4f0 | 967 | &uid); |
85d4a676 | 968 | |
f60db4f0 | 969 | if (result == 6) |
85d4a676 SS |
970 | { |
971 | union socket_addr locaddr, remaddr; | |
972 | size_t addr_size; | |
973 | char user[UT_NAMESIZE]; | |
974 | char local_service[NI_MAXSERV], remote_service[NI_MAXSERV]; | |
975 | ||
976 | if (family == AF_INET) | |
977 | { | |
978 | sscanf (local_address, "%X", | |
979 | &locaddr.sin.sin_addr.s_addr); | |
980 | sscanf (remote_address, "%X", | |
981 | &remaddr.sin.sin_addr.s_addr); | |
982 | ||
983 | locaddr.sin.sin_port = htons (local_port); | |
984 | remaddr.sin.sin_port = htons (remote_port); | |
985 | ||
986 | addr_size = sizeof (struct sockaddr_in); | |
987 | } | |
988 | else | |
989 | { | |
990 | sscanf (local_address, "%8X%8X%8X%8X", | |
991 | locaddr.sin6.sin6_addr.s6_addr32, | |
992 | locaddr.sin6.sin6_addr.s6_addr32 + 1, | |
993 | locaddr.sin6.sin6_addr.s6_addr32 + 2, | |
994 | locaddr.sin6.sin6_addr.s6_addr32 + 3); | |
995 | sscanf (remote_address, "%8X%8X%8X%8X", | |
996 | remaddr.sin6.sin6_addr.s6_addr32, | |
997 | remaddr.sin6.sin6_addr.s6_addr32 + 1, | |
998 | remaddr.sin6.sin6_addr.s6_addr32 + 2, | |
999 | remaddr.sin6.sin6_addr.s6_addr32 + 3); | |
1000 | ||
1001 | locaddr.sin6.sin6_port = htons (local_port); | |
1002 | remaddr.sin6.sin6_port = htons (remote_port); | |
1003 | ||
1004 | locaddr.sin6.sin6_flowinfo = 0; | |
1005 | remaddr.sin6.sin6_flowinfo = 0; | |
1006 | locaddr.sin6.sin6_scope_id = 0; | |
1007 | remaddr.sin6.sin6_scope_id = 0; | |
1008 | ||
1009 | addr_size = sizeof (struct sockaddr_in6); | |
1010 | } | |
1011 | ||
1012 | locaddr.sa.sa_family = remaddr.sa.sa_family = family; | |
1013 | ||
1014 | result = getnameinfo (&locaddr.sa, addr_size, | |
1015 | local_address, sizeof (local_address), | |
1016 | local_service, sizeof (local_service), | |
1017 | NI_NUMERICHOST | NI_NUMERICSERV | |
1018 | | (tcp ? 0 : NI_DGRAM)); | |
1019 | if (result) | |
1020 | continue; | |
1021 | ||
1022 | result = getnameinfo (&remaddr.sa, addr_size, | |
1023 | remote_address, | |
1024 | sizeof (remote_address), | |
1025 | remote_service, | |
1026 | sizeof (remote_service), | |
1027 | NI_NUMERICHOST | NI_NUMERICSERV | |
1028 | | (tcp ? 0 : NI_DGRAM)); | |
1029 | if (result) | |
1030 | continue; | |
1031 | ||
1032 | user_from_uid (user, sizeof (user), uid); | |
1033 | ||
1034 | buffer_xml_printf ( | |
1035 | buffer, | |
1036 | "<item>" | |
1037 | "<column name=\"local address\">%s</column>" | |
1038 | "<column name=\"local port\">%s</column>" | |
1039 | "<column name=\"remote address\">%s</column>" | |
1040 | "<column name=\"remote port\">%s</column>" | |
1041 | "<column name=\"state\">%s</column>" | |
1042 | "<column name=\"user\">%s</column>" | |
1043 | "<column name=\"family\">%s</column>" | |
1044 | "<column name=\"protocol\">%s</column>" | |
1045 | "</item>", | |
1046 | local_address, | |
1047 | local_service, | |
1048 | remote_address, | |
1049 | remote_service, | |
1050 | format_socket_state (state), | |
1051 | user, | |
1052 | (family == AF_INET) ? "INET" : "INET6", | |
1053 | tcp ? "STREAM" : "DGRAM"); | |
1054 | } | |
1055 | } | |
1056 | } | |
d419f42d | 1057 | while (!feof (fp.get ())); |
85d4a676 SS |
1058 | } |
1059 | } | |
1060 | ||
1061 | /* Collect data about internet sockets and write it into READBUF. */ | |
1062 | ||
1063 | static LONGEST | |
1064 | linux_xfer_osdata_isockets (gdb_byte *readbuf, | |
dea80a27 | 1065 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1066 | { |
1067 | static const char *buf; | |
1068 | static LONGEST len_avail = -1; | |
1069 | static struct buffer buffer; | |
1070 | ||
1071 | if (offset == 0) | |
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=\"I sockets\">\n"); | |
1079 | ||
1080 | print_sockets (AF_INET, 1, &buffer); | |
1081 | print_sockets (AF_INET, 0, &buffer); | |
1082 | print_sockets (AF_INET6, 1, &buffer); | |
1083 | print_sockets (AF_INET6, 0, &buffer); | |
1084 | ||
1085 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1086 | buf = buffer_finish (&buffer); | |
1087 | len_avail = strlen (buf); | |
1088 | } | |
1089 | ||
1090 | if (offset >= len_avail) | |
1091 | { | |
1092 | /* Done. Get rid of the buffer. */ | |
1093 | buffer_free (&buffer); | |
1094 | buf = NULL; | |
1095 | len_avail = 0; | |
1096 | return 0; | |
1097 | } | |
1098 | ||
1099 | if (len > len_avail - offset) | |
1100 | len = len_avail - offset; | |
1101 | memcpy (readbuf, buf + offset, len); | |
1102 | ||
1103 | return len; | |
1104 | } | |
1105 | ||
1106 | /* Converts the time SECONDS into textual form and copies it into a | |
1107 | buffer TIME, with at most MAXLEN characters copied. */ | |
1108 | ||
1109 | static void | |
1110 | time_from_time_t (char *time, int maxlen, TIME_T seconds) | |
1111 | { | |
1112 | if (!seconds) | |
1113 | time[0] = '\0'; | |
1114 | else | |
1115 | { | |
1116 | time_t t = (time_t) seconds; | |
1117 | ||
1118 | strncpy (time, ctime (&t), maxlen); | |
1119 | time[maxlen - 1] = '\0'; | |
1120 | } | |
1121 | } | |
1122 | ||
1123 | /* Finds the group name for the group GID and copies it into GROUP. | |
1124 | At most MAXLEN characters are copied. */ | |
1125 | ||
1126 | static void | |
1127 | group_from_gid (char *group, int maxlen, gid_t gid) | |
1128 | { | |
1129 | struct group *grentry = getgrgid (gid); | |
1130 | ||
1131 | if (grentry) | |
1132 | { | |
1133 | strncpy (group, grentry->gr_name, maxlen); | |
1134 | /* Ensure that the group name is null-terminated. */ | |
1135 | group[maxlen - 1] = '\0'; | |
1136 | } | |
1137 | else | |
1138 | group[0] = '\0'; | |
1139 | } | |
1140 | ||
1141 | /* Collect data about shared memory recorded in /proc and write it | |
1142 | into READBUF. */ | |
1143 | ||
1144 | static LONGEST | |
1145 | linux_xfer_osdata_shm (gdb_byte *readbuf, | |
dea80a27 | 1146 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1147 | { |
1148 | static const char *buf; | |
1149 | static LONGEST len_avail = -1; | |
1150 | static struct buffer buffer; | |
1151 | ||
1152 | if (offset == 0) | |
1153 | { | |
85d4a676 SS |
1154 | if (len_avail != -1 && len_avail != 0) |
1155 | buffer_free (&buffer); | |
1156 | len_avail = 0; | |
1157 | buf = NULL; | |
1158 | buffer_init (&buffer); | |
1159 | buffer_grow_str (&buffer, "<osdata type=\"shared memory\">\n"); | |
1160 | ||
d419f42d | 1161 | gdb_file_up fp = gdb_fopen_cloexec ("/proc/sysvipc/shm", "r"); |
85d4a676 SS |
1162 | if (fp) |
1163 | { | |
1164 | char buf[8192]; | |
1165 | ||
1166 | do | |
1167 | { | |
d419f42d | 1168 | if (fgets (buf, sizeof (buf), fp.get ())) |
85d4a676 SS |
1169 | { |
1170 | key_t key; | |
1171 | uid_t uid, cuid; | |
1172 | gid_t gid, cgid; | |
1173 | PID_T cpid, lpid; | |
1174 | int shmid, size, nattch; | |
1175 | TIME_T atime, dtime, ctime; | |
1176 | unsigned int perms; | |
1177 | int items_read; | |
1178 | ||
1179 | items_read = sscanf (buf, | |
1180 | "%d %d %o %d %lld %lld %d %u %u %u %u %lld %lld %lld", | |
1181 | &key, &shmid, &perms, &size, | |
1182 | &cpid, &lpid, | |
1183 | &nattch, | |
1184 | &uid, &gid, &cuid, &cgid, | |
1185 | &atime, &dtime, &ctime); | |
1186 | ||
1187 | if (items_read == 14) | |
1188 | { | |
1189 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1190 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1191 | char ccmd[32], lcmd[32]; | |
1192 | char atime_str[32], dtime_str[32], ctime_str[32]; | |
1193 | ||
1194 | user_from_uid (user, sizeof (user), uid); | |
1195 | group_from_gid (group, sizeof (group), gid); | |
1196 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1197 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1198 | ||
1199 | command_from_pid (ccmd, sizeof (ccmd), cpid); | |
1200 | command_from_pid (lcmd, sizeof (lcmd), lpid); | |
1201 | ||
1202 | time_from_time_t (atime_str, sizeof (atime_str), atime); | |
1203 | time_from_time_t (dtime_str, sizeof (dtime_str), dtime); | |
1204 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1205 | ||
1206 | buffer_xml_printf ( | |
1207 | &buffer, | |
1208 | "<item>" | |
1209 | "<column name=\"key\">%d</column>" | |
1210 | "<column name=\"shmid\">%d</column>" | |
1211 | "<column name=\"permissions\">%o</column>" | |
1212 | "<column name=\"size\">%d</column>" | |
1213 | "<column name=\"creator command\">%s</column>" | |
1214 | "<column name=\"last op. command\">%s</column>" | |
1215 | "<column name=\"num attached\">%d</column>" | |
1216 | "<column name=\"user\">%s</column>" | |
1217 | "<column name=\"group\">%s</column>" | |
1218 | "<column name=\"creator user\">%s</column>" | |
1219 | "<column name=\"creator group\">%s</column>" | |
1220 | "<column name=\"last shmat() time\">%s</column>" | |
1221 | "<column name=\"last shmdt() time\">%s</column>" | |
1222 | "<column name=\"last shmctl() time\">%s</column>" | |
1223 | "</item>", | |
1224 | key, | |
1225 | shmid, | |
1226 | perms, | |
1227 | size, | |
1228 | ccmd, | |
1229 | lcmd, | |
1230 | nattch, | |
1231 | user, | |
1232 | group, | |
1233 | cuser, | |
1234 | cgroup, | |
1235 | atime_str, | |
1236 | dtime_str, | |
1237 | ctime_str); | |
1238 | } | |
1239 | } | |
1240 | } | |
d419f42d | 1241 | while (!feof (fp.get ())); |
85d4a676 SS |
1242 | } |
1243 | ||
1244 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1245 | buf = buffer_finish (&buffer); | |
1246 | len_avail = strlen (buf); | |
1247 | } | |
1248 | ||
1249 | if (offset >= len_avail) | |
1250 | { | |
1251 | /* Done. Get rid of the buffer. */ | |
1252 | buffer_free (&buffer); | |
1253 | buf = NULL; | |
1254 | len_avail = 0; | |
1255 | return 0; | |
1256 | } | |
1257 | ||
1258 | if (len > len_avail - offset) | |
1259 | len = len_avail - offset; | |
1260 | memcpy (readbuf, buf + offset, len); | |
1261 | ||
1262 | return len; | |
1263 | } | |
1264 | ||
1265 | /* Collect data about semaphores recorded in /proc and write it | |
1266 | into READBUF. */ | |
1267 | ||
1268 | static LONGEST | |
1269 | linux_xfer_osdata_sem (gdb_byte *readbuf, | |
dea80a27 | 1270 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1271 | { |
1272 | static const char *buf; | |
1273 | static LONGEST len_avail = -1; | |
1274 | static struct buffer buffer; | |
1275 | ||
1276 | if (offset == 0) | |
1277 | { | |
85d4a676 SS |
1278 | if (len_avail != -1 && len_avail != 0) |
1279 | buffer_free (&buffer); | |
1280 | len_avail = 0; | |
1281 | buf = NULL; | |
1282 | buffer_init (&buffer); | |
1283 | buffer_grow_str (&buffer, "<osdata type=\"semaphores\">\n"); | |
1284 | ||
d419f42d | 1285 | gdb_file_up fp = gdb_fopen_cloexec ("/proc/sysvipc/sem", "r"); |
85d4a676 SS |
1286 | if (fp) |
1287 | { | |
1288 | char buf[8192]; | |
1289 | ||
1290 | do | |
1291 | { | |
d419f42d | 1292 | if (fgets (buf, sizeof (buf), fp.get ())) |
85d4a676 SS |
1293 | { |
1294 | key_t key; | |
1295 | uid_t uid, cuid; | |
1296 | gid_t gid, cgid; | |
1297 | unsigned int perms, nsems; | |
1298 | int semid; | |
1299 | TIME_T otime, ctime; | |
1300 | int items_read; | |
1301 | ||
1302 | items_read = sscanf (buf, | |
1303 | "%d %d %o %u %d %d %d %d %lld %lld", | |
1304 | &key, &semid, &perms, &nsems, | |
1305 | &uid, &gid, &cuid, &cgid, | |
1306 | &otime, &ctime); | |
1307 | ||
1308 | if (items_read == 10) | |
1309 | { | |
1310 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1311 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1312 | char otime_str[32], ctime_str[32]; | |
1313 | ||
1314 | user_from_uid (user, sizeof (user), uid); | |
1315 | group_from_gid (group, sizeof (group), gid); | |
1316 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1317 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1318 | ||
1319 | time_from_time_t (otime_str, sizeof (otime_str), otime); | |
1320 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1321 | ||
1322 | buffer_xml_printf ( | |
1323 | &buffer, | |
1324 | "<item>" | |
1325 | "<column name=\"key\">%d</column>" | |
1326 | "<column name=\"semid\">%d</column>" | |
1327 | "<column name=\"permissions\">%o</column>" | |
1328 | "<column name=\"num semaphores\">%u</column>" | |
1329 | "<column name=\"user\">%s</column>" | |
1330 | "<column name=\"group\">%s</column>" | |
1331 | "<column name=\"creator user\">%s</column>" | |
1332 | "<column name=\"creator group\">%s</column>" | |
1333 | "<column name=\"last semop() time\">%s</column>" | |
1334 | "<column name=\"last semctl() time\">%s</column>" | |
1335 | "</item>", | |
1336 | key, | |
1337 | semid, | |
1338 | perms, | |
1339 | nsems, | |
1340 | user, | |
1341 | group, | |
1342 | cuser, | |
1343 | cgroup, | |
1344 | otime_str, | |
1345 | ctime_str); | |
1346 | } | |
1347 | } | |
1348 | } | |
d419f42d | 1349 | while (!feof (fp.get ())); |
85d4a676 SS |
1350 | } |
1351 | ||
1352 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1353 | buf = buffer_finish (&buffer); | |
1354 | len_avail = strlen (buf); | |
1355 | } | |
1356 | ||
1357 | if (offset >= len_avail) | |
1358 | { | |
1359 | /* Done. Get rid of the buffer. */ | |
1360 | buffer_free (&buffer); | |
1361 | buf = NULL; | |
1362 | len_avail = 0; | |
1363 | return 0; | |
1364 | } | |
1365 | ||
1366 | if (len > len_avail - offset) | |
1367 | len = len_avail - offset; | |
1368 | memcpy (readbuf, buf + offset, len); | |
1369 | ||
1370 | return len; | |
1371 | } | |
1372 | ||
1373 | /* Collect data about message queues recorded in /proc and write it | |
1374 | into READBUF. */ | |
1375 | ||
1376 | static LONGEST | |
1377 | linux_xfer_osdata_msg (gdb_byte *readbuf, | |
dea80a27 | 1378 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1379 | { |
1380 | static const char *buf; | |
1381 | static LONGEST len_avail = -1; | |
1382 | static struct buffer buffer; | |
1383 | ||
1384 | if (offset == 0) | |
1385 | { | |
85d4a676 SS |
1386 | if (len_avail != -1 && len_avail != 0) |
1387 | buffer_free (&buffer); | |
1388 | len_avail = 0; | |
1389 | buf = NULL; | |
1390 | buffer_init (&buffer); | |
1391 | buffer_grow_str (&buffer, "<osdata type=\"message queues\">\n"); | |
1392 | ||
d419f42d | 1393 | gdb_file_up fp = gdb_fopen_cloexec ("/proc/sysvipc/msg", "r"); |
85d4a676 SS |
1394 | if (fp) |
1395 | { | |
1396 | char buf[8192]; | |
1397 | ||
1398 | do | |
1399 | { | |
d419f42d | 1400 | if (fgets (buf, sizeof (buf), fp.get ())) |
85d4a676 SS |
1401 | { |
1402 | key_t key; | |
1403 | PID_T lspid, lrpid; | |
1404 | uid_t uid, cuid; | |
1405 | gid_t gid, cgid; | |
1406 | unsigned int perms, cbytes, qnum; | |
1407 | int msqid; | |
1408 | TIME_T stime, rtime, ctime; | |
1409 | int items_read; | |
1410 | ||
1411 | items_read = sscanf (buf, | |
1412 | "%d %d %o %u %u %lld %lld %d %d %d %d %lld %lld %lld", | |
1413 | &key, &msqid, &perms, &cbytes, &qnum, | |
1414 | &lspid, &lrpid, &uid, &gid, &cuid, &cgid, | |
1415 | &stime, &rtime, &ctime); | |
1416 | ||
1417 | if (items_read == 14) | |
1418 | { | |
1419 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1420 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1421 | char lscmd[32], lrcmd[32]; | |
1422 | char stime_str[32], rtime_str[32], ctime_str[32]; | |
1423 | ||
1424 | user_from_uid (user, sizeof (user), uid); | |
1425 | group_from_gid (group, sizeof (group), gid); | |
1426 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1427 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1428 | ||
1429 | command_from_pid (lscmd, sizeof (lscmd), lspid); | |
1430 | command_from_pid (lrcmd, sizeof (lrcmd), lrpid); | |
1431 | ||
1432 | time_from_time_t (stime_str, sizeof (stime_str), stime); | |
1433 | time_from_time_t (rtime_str, sizeof (rtime_str), rtime); | |
1434 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1435 | ||
1436 | buffer_xml_printf ( | |
1437 | &buffer, | |
1438 | "<item>" | |
1439 | "<column name=\"key\">%d</column>" | |
1440 | "<column name=\"msqid\">%d</column>" | |
1441 | "<column name=\"permissions\">%o</column>" | |
1442 | "<column name=\"num used bytes\">%u</column>" | |
1443 | "<column name=\"num messages\">%u</column>" | |
1444 | "<column name=\"last msgsnd() command\">%s</column>" | |
1445 | "<column name=\"last msgrcv() command\">%s</column>" | |
1446 | "<column name=\"user\">%s</column>" | |
1447 | "<column name=\"group\">%s</column>" | |
1448 | "<column name=\"creator user\">%s</column>" | |
1449 | "<column name=\"creator group\">%s</column>" | |
1450 | "<column name=\"last msgsnd() time\">%s</column>" | |
1451 | "<column name=\"last msgrcv() time\">%s</column>" | |
1452 | "<column name=\"last msgctl() time\">%s</column>" | |
1453 | "</item>", | |
1454 | key, | |
1455 | msqid, | |
1456 | perms, | |
1457 | cbytes, | |
1458 | qnum, | |
1459 | lscmd, | |
1460 | lrcmd, | |
1461 | user, | |
1462 | group, | |
1463 | cuser, | |
1464 | cgroup, | |
1465 | stime_str, | |
1466 | rtime_str, | |
1467 | ctime_str); | |
1468 | } | |
1469 | } | |
1470 | } | |
d419f42d | 1471 | while (!feof (fp.get ())); |
85d4a676 SS |
1472 | } |
1473 | ||
1474 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1475 | buf = buffer_finish (&buffer); | |
1476 | len_avail = strlen (buf); | |
1477 | } | |
1478 | ||
1479 | if (offset >= len_avail) | |
1480 | { | |
1481 | /* Done. Get rid of the buffer. */ | |
1482 | buffer_free (&buffer); | |
1483 | buf = NULL; | |
1484 | len_avail = 0; | |
1485 | return 0; | |
1486 | } | |
1487 | ||
1488 | if (len > len_avail - offset) | |
1489 | len = len_avail - offset; | |
1490 | memcpy (readbuf, buf + offset, len); | |
1491 | ||
1492 | return len; | |
1493 | } | |
1494 | ||
1495 | /* Collect data about loaded kernel modules and write it into | |
1496 | READBUF. */ | |
1497 | ||
1498 | static LONGEST | |
1499 | linux_xfer_osdata_modules (gdb_byte *readbuf, | |
dea80a27 | 1500 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1501 | { |
1502 | static const char *buf; | |
1503 | static LONGEST len_avail = -1; | |
1504 | static struct buffer buffer; | |
1505 | ||
1506 | if (offset == 0) | |
1507 | { | |
85d4a676 SS |
1508 | if (len_avail != -1 && len_avail != 0) |
1509 | buffer_free (&buffer); | |
1510 | len_avail = 0; | |
1511 | buf = NULL; | |
1512 | buffer_init (&buffer); | |
1513 | buffer_grow_str (&buffer, "<osdata type=\"modules\">\n"); | |
1514 | ||
d419f42d | 1515 | gdb_file_up fp = gdb_fopen_cloexec ("/proc/modules", "r"); |
85d4a676 SS |
1516 | if (fp) |
1517 | { | |
1518 | char buf[8192]; | |
1519 | ||
1520 | do | |
1521 | { | |
d419f42d | 1522 | if (fgets (buf, sizeof (buf), fp.get ())) |
85d4a676 | 1523 | { |
f60db4f0 | 1524 | char *name, *dependencies, *status, *tmp; |
85d4a676 SS |
1525 | unsigned int size; |
1526 | unsigned long long address; | |
1527 | int uses; | |
85d4a676 | 1528 | |
f60db4f0 GB |
1529 | name = strtok (buf, " "); |
1530 | if (name == NULL) | |
1531 | continue; | |
1532 | ||
1533 | tmp = strtok (NULL, " "); | |
1534 | if (tmp == NULL) | |
1535 | continue; | |
1536 | if (sscanf (tmp, "%u", &size) != 1) | |
1537 | continue; | |
1538 | ||
1539 | tmp = strtok (NULL, " "); | |
1540 | if (tmp == NULL) | |
1541 | continue; | |
1542 | if (sscanf (tmp, "%d", &uses) != 1) | |
1543 | continue; | |
1544 | ||
1545 | dependencies = strtok (NULL, " "); | |
1546 | if (dependencies == NULL) | |
1547 | continue; | |
1548 | ||
1549 | status = strtok (NULL, " "); | |
1550 | if (status == NULL) | |
1551 | continue; | |
1552 | ||
1553 | tmp = strtok (NULL, "\n"); | |
1554 | if (tmp == NULL) | |
1555 | continue; | |
1556 | if (sscanf (tmp, "%llx", &address) != 1) | |
1557 | continue; | |
1558 | ||
1559 | buffer_xml_printf ( | |
85d4a676 SS |
1560 | &buffer, |
1561 | "<item>" | |
1562 | "<column name=\"name\">%s</column>" | |
1563 | "<column name=\"size\">%u</column>" | |
1564 | "<column name=\"num uses\">%d</column>" | |
1565 | "<column name=\"dependencies\">%s</column>" | |
1566 | "<column name=\"status\">%s</column>" | |
1567 | "<column name=\"address\">%llx</column>" | |
1568 | "</item>", | |
1569 | name, | |
1570 | size, | |
1571 | uses, | |
1572 | dependencies, | |
1573 | status, | |
1574 | address); | |
1575 | } | |
1576 | } | |
d419f42d | 1577 | while (!feof (fp.get ())); |
85d4a676 SS |
1578 | } |
1579 | ||
1580 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1581 | buf = buffer_finish (&buffer); | |
1582 | len_avail = strlen (buf); | |
1583 | } | |
1584 | ||
1585 | if (offset >= len_avail) | |
1586 | { | |
1587 | /* Done. Get rid of the buffer. */ | |
1588 | buffer_free (&buffer); | |
1589 | buf = NULL; | |
1590 | len_avail = 0; | |
1591 | return 0; | |
1592 | } | |
1593 | ||
1594 | if (len > len_avail - offset) | |
1595 | len = len_avail - offset; | |
1596 | memcpy (readbuf, buf + offset, len); | |
1597 | ||
1598 | return len; | |
1599 | } | |
1600 | ||
d26e3629 | 1601 | struct osdata_type { |
a121b7c1 PA |
1602 | const char *type; |
1603 | const char *title; | |
1604 | const char *description; | |
dea80a27 | 1605 | LONGEST (*getter) (gdb_byte *readbuf, ULONGEST offset, ULONGEST len); |
d26e3629 | 1606 | } osdata_table[] = { |
d33279b3 AT |
1607 | { "cpus", "CPUs", "Listing of all cpus/cores on the system", |
1608 | linux_xfer_osdata_cpus }, | |
1609 | { "files", "File descriptors", "Listing of all file descriptors", | |
1610 | linux_xfer_osdata_fds }, | |
1611 | { "modules", "Kernel modules", "Listing of all loaded kernel modules", | |
1612 | linux_xfer_osdata_modules }, | |
1613 | { "msg", "Message queues", "Listing of all message queues", | |
1614 | linux_xfer_osdata_msg }, | |
71caed83 | 1615 | { "processes", "Processes", "Listing of all processes", |
85d4a676 | 1616 | linux_xfer_osdata_processes }, |
71caed83 | 1617 | { "procgroups", "Process groups", "Listing of all process groups", |
85d4a676 | 1618 | linux_xfer_osdata_processgroups }, |
71caed83 | 1619 | { "semaphores", "Semaphores", "Listing of all semaphores", |
85d4a676 | 1620 | linux_xfer_osdata_sem }, |
d33279b3 AT |
1621 | { "shm", "Shared-memory regions", "Listing of all shared-memory regions", |
1622 | linux_xfer_osdata_shm }, | |
1623 | { "sockets", "Sockets", "Listing of all internet-domain sockets", | |
1624 | linux_xfer_osdata_isockets }, | |
1625 | { "threads", "Threads", "Listing of all threads", | |
1626 | linux_xfer_osdata_threads }, | |
d26e3629 KY |
1627 | { NULL, NULL, NULL } |
1628 | }; | |
1629 | ||
1630 | LONGEST | |
1631 | linux_common_xfer_osdata (const char *annex, gdb_byte *readbuf, | |
dea80a27 | 1632 | ULONGEST offset, ULONGEST len) |
d26e3629 KY |
1633 | { |
1634 | if (!annex || *annex == '\0') | |
1635 | { | |
1636 | static const char *buf; | |
1637 | static LONGEST len_avail = -1; | |
1638 | static struct buffer buffer; | |
1639 | ||
1640 | if (offset == 0) | |
1641 | { | |
1642 | int i; | |
1643 | ||
1644 | if (len_avail != -1 && len_avail != 0) | |
1645 | buffer_free (&buffer); | |
1646 | len_avail = 0; | |
1647 | buf = NULL; | |
1648 | buffer_init (&buffer); | |
1649 | buffer_grow_str (&buffer, "<osdata type=\"types\">\n"); | |
1650 | ||
1651 | for (i = 0; osdata_table[i].type; ++i) | |
1652 | buffer_xml_printf ( | |
1653 | &buffer, | |
1654 | "<item>" | |
1655 | "<column name=\"Type\">%s</column>" | |
1656 | "<column name=\"Description\">%s</column>" | |
71caed83 | 1657 | "<column name=\"Title\">%s</column>" |
d26e3629 KY |
1658 | "</item>", |
1659 | osdata_table[i].type, | |
71caed83 SS |
1660 | osdata_table[i].description, |
1661 | osdata_table[i].title); | |
d26e3629 KY |
1662 | |
1663 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1664 | buf = buffer_finish (&buffer); | |
1665 | len_avail = strlen (buf); | |
1666 | } | |
1667 | ||
1668 | if (offset >= len_avail) | |
1669 | { | |
1670 | /* Done. Get rid of the buffer. */ | |
1671 | buffer_free (&buffer); | |
1672 | buf = NULL; | |
1673 | len_avail = 0; | |
1674 | return 0; | |
1675 | } | |
1676 | ||
1677 | if (len > len_avail - offset) | |
1678 | len = len_avail - offset; | |
1679 | memcpy (readbuf, buf + offset, len); | |
1680 | ||
1681 | return len; | |
1682 | } | |
1683 | else | |
1684 | { | |
1685 | int i; | |
1686 | ||
1687 | for (i = 0; osdata_table[i].type; ++i) | |
1688 | { | |
1689 | if (strcmp (annex, osdata_table[i].type) == 0) | |
1690 | { | |
1691 | gdb_assert (readbuf); | |
1692 | ||
1693 | return (osdata_table[i].getter) (readbuf, offset, len); | |
1694 | } | |
1695 | } | |
1696 | ||
1697 | return 0; | |
1698 | } | |
1699 | } | |
1700 |