Commit | Line | Data |
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d26e3629 KY |
1 | /* Linux-specific functions to retrieve OS data. |
2 | ||
e2882c85 | 3 | Copyright (C) 2009-2018 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" |
b129dcac | 40 | #include <algorithm> |
d26e3629 | 41 | |
2978b111 TT |
42 | #define NAMELEN(dirent) strlen ((dirent)->d_name) |
43 | ||
85d4a676 SS |
44 | /* Define PID_T to be a fixed size that is at least as large as pid_t, |
45 | so that reading pid values embedded in /proc works | |
46 | consistently. */ | |
47 | ||
48 | typedef long long PID_T; | |
49 | ||
50 | /* Define TIME_T to be at least as large as time_t, so that reading | |
51 | time values embedded in /proc works consistently. */ | |
52 | ||
53 | typedef long long TIME_T; | |
54 | ||
55 | #define MAX_PID_T_STRLEN (sizeof ("-9223372036854775808") - 1) | |
56 | ||
57 | /* Returns the CPU core that thread PTID is currently running on. */ | |
58 | ||
2e794194 JK |
59 | /* Compute and return the processor core of a given thread. */ |
60 | ||
d26e3629 KY |
61 | int |
62 | linux_common_core_of_thread (ptid_t ptid) | |
63 | { | |
85d4a676 | 64 | char filename[sizeof ("/proc//task//stat") + 2 * MAX_PID_T_STRLEN]; |
d26e3629 KY |
65 | char *content = NULL; |
66 | char *p; | |
67 | char *ts = 0; | |
68 | int content_read = 0; | |
69 | int i; | |
70 | int core; | |
71 | ||
85d4a676 | 72 | sprintf (filename, "/proc/%lld/task/%lld/stat", |
e38504b3 | 73 | (PID_T) ptid.pid (), (PID_T) ptid.lwp ()); |
d419f42d | 74 | gdb_file_up 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); |
d419f42d | 82 | n = fread (content + content_read, 1, 1024, f.get ()); |
d26e3629 KY |
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); | |
d26e3629 KY |
107 | |
108 | return core; | |
109 | } | |
110 | ||
85d4a676 SS |
111 | /* Finds the command-line of process PID and copies it into COMMAND. |
112 | At most MAXLEN characters are copied. If the command-line cannot | |
113 | be found, PID is copied into command in text-form. */ | |
114 | ||
d26e3629 | 115 | static void |
85d4a676 | 116 | command_from_pid (char *command, int maxlen, PID_T pid) |
d26e3629 | 117 | { |
528e1572 | 118 | std::string stat_path = string_printf ("/proc/%lld/stat", pid); |
d419f42d | 119 | gdb_file_up fp = gdb_fopen_cloexec (stat_path, "r"); |
d26e3629 KY |
120 | |
121 | command[0] = '\0'; | |
122 | ||
123 | if (fp) | |
124 | { | |
125 | /* sizeof (cmd) should be greater or equal to TASK_COMM_LEN (in | |
126 | include/linux/sched.h in the Linux kernel sources) plus two | |
127 | (for the brackets). */ | |
f60db4f0 | 128 | char cmd[18]; |
85d4a676 | 129 | PID_T stat_pid; |
d419f42d | 130 | int items_read = fscanf (fp.get (), "%lld %17s", &stat_pid, cmd); |
d26e3629 KY |
131 | |
132 | if (items_read == 2 && pid == stat_pid) | |
133 | { | |
134 | cmd[strlen (cmd) - 1] = '\0'; /* Remove trailing parenthesis. */ | |
135 | strncpy (command, cmd + 1, maxlen); /* Ignore leading parenthesis. */ | |
136 | } | |
d26e3629 KY |
137 | } |
138 | else | |
139 | { | |
140 | /* Return the PID if a /proc entry for the process cannot be found. */ | |
85d4a676 | 141 | snprintf (command, maxlen, "%lld", pid); |
d26e3629 KY |
142 | } |
143 | ||
144 | command[maxlen - 1] = '\0'; /* Ensure string is null-terminated. */ | |
d26e3629 KY |
145 | } |
146 | ||
85d4a676 SS |
147 | /* Returns the command-line of the process with the given PID. The |
148 | returned string needs to be freed using xfree after use. */ | |
d26e3629 KY |
149 | |
150 | static char * | |
85d4a676 | 151 | commandline_from_pid (PID_T pid) |
d26e3629 | 152 | { |
528e1572 | 153 | std::string pathname = xstrprintf ("/proc/%lld/cmdline", pid); |
d26e3629 | 154 | char *commandline = NULL; |
d419f42d | 155 | gdb_file_up f = gdb_fopen_cloexec (pathname, "r"); |
d26e3629 KY |
156 | |
157 | if (f) | |
158 | { | |
159 | size_t len = 0; | |
160 | ||
d419f42d | 161 | while (!feof (f.get ())) |
d26e3629 KY |
162 | { |
163 | char buf[1024]; | |
d419f42d | 164 | size_t read_bytes = fread (buf, 1, sizeof (buf), f.get ()); |
d26e3629 KY |
165 | |
166 | if (read_bytes) | |
167 | { | |
168 | commandline = (char *) xrealloc (commandline, len + read_bytes + 1); | |
169 | memcpy (commandline + len, buf, read_bytes); | |
170 | len += read_bytes; | |
171 | } | |
172 | } | |
173 | ||
d26e3629 KY |
174 | if (commandline) |
175 | { | |
176 | size_t i; | |
177 | ||
178 | /* Replace null characters with spaces. */ | |
179 | for (i = 0; i < len; ++i) | |
180 | if (commandline[i] == '\0') | |
181 | commandline[i] = ' '; | |
182 | ||
183 | commandline[len] = '\0'; | |
184 | } | |
185 | else | |
186 | { | |
85d4a676 SS |
187 | /* Return the command in square brackets if the command-line |
188 | is empty. */ | |
d26e3629 KY |
189 | commandline = (char *) xmalloc (32); |
190 | commandline[0] = '['; | |
191 | command_from_pid (commandline + 1, 31, pid); | |
192 | ||
193 | len = strlen (commandline); | |
194 | if (len < 31) | |
195 | strcat (commandline, "]"); | |
196 | } | |
197 | } | |
198 | ||
d26e3629 KY |
199 | return commandline; |
200 | } | |
201 | ||
85d4a676 SS |
202 | /* Finds the user name for the user UID and copies it into USER. At |
203 | most MAXLEN characters are copied. */ | |
204 | ||
d26e3629 KY |
205 | static void |
206 | user_from_uid (char *user, int maxlen, uid_t uid) | |
207 | { | |
208 | struct passwd *pwentry = getpwuid (uid); | |
209 | ||
210 | if (pwentry) | |
211 | { | |
212 | strncpy (user, pwentry->pw_name, maxlen); | |
85d4a676 SS |
213 | /* Ensure that the user name is null-terminated. */ |
214 | user[maxlen - 1] = '\0'; | |
d26e3629 KY |
215 | } |
216 | else | |
217 | user[0] = '\0'; | |
218 | } | |
219 | ||
85d4a676 SS |
220 | /* Finds the owner of process PID and returns the user id in OWNER. |
221 | Returns 0 if the owner was found, -1 otherwise. */ | |
222 | ||
d26e3629 | 223 | static int |
85d4a676 | 224 | get_process_owner (uid_t *owner, PID_T pid) |
d26e3629 KY |
225 | { |
226 | struct stat statbuf; | |
85d4a676 | 227 | char procentry[sizeof ("/proc/") + MAX_PID_T_STRLEN]; |
d26e3629 | 228 | |
85d4a676 | 229 | sprintf (procentry, "/proc/%lld", pid); |
d26e3629 KY |
230 | |
231 | if (stat (procentry, &statbuf) == 0 && S_ISDIR (statbuf.st_mode)) | |
232 | { | |
233 | *owner = statbuf.st_uid; | |
234 | return 0; | |
235 | } | |
236 | else | |
237 | return -1; | |
238 | } | |
239 | ||
85d4a676 | 240 | /* Find the CPU cores used by process PID and return them in CORES. |
184cd072 | 241 | CORES points to an array of NUM_CORES elements. */ |
d26e3629 KY |
242 | |
243 | static int | |
184cd072 | 244 | get_cores_used_by_process (PID_T pid, int *cores, const int num_cores) |
d26e3629 | 245 | { |
85d4a676 | 246 | char taskdir[sizeof ("/proc/") + MAX_PID_T_STRLEN + sizeof ("/task") - 1]; |
d26e3629 KY |
247 | DIR *dir; |
248 | struct dirent *dp; | |
249 | int task_count = 0; | |
250 | ||
85d4a676 | 251 | sprintf (taskdir, "/proc/%lld/task", pid); |
d26e3629 | 252 | dir = opendir (taskdir); |
e5798bef | 253 | if (dir) |
d26e3629 | 254 | { |
e5798bef PA |
255 | while ((dp = readdir (dir)) != NULL) |
256 | { | |
85d4a676 | 257 | PID_T tid; |
e5798bef | 258 | int core; |
d26e3629 | 259 | |
e5798bef | 260 | if (!isdigit (dp->d_name[0]) |
85d4a676 | 261 | || NAMELEN (dp) > MAX_PID_T_STRLEN) |
e5798bef | 262 | continue; |
d26e3629 | 263 | |
85d4a676 | 264 | sscanf (dp->d_name, "%lld", &tid); |
fd79271b TT |
265 | core = linux_common_core_of_thread (ptid_t ((pid_t) pid, |
266 | (pid_t) tid, 0)); | |
d26e3629 | 267 | |
184cd072 | 268 | if (core >= 0 && core < num_cores) |
e5798bef PA |
269 | { |
270 | ++cores[core]; | |
271 | ++task_count; | |
272 | } | |
d26e3629 | 273 | } |
d26e3629 | 274 | |
e5798bef PA |
275 | closedir (dir); |
276 | } | |
d26e3629 KY |
277 | |
278 | return task_count; | |
279 | } | |
280 | ||
281 | static LONGEST | |
282 | linux_xfer_osdata_processes (gdb_byte *readbuf, | |
dea80a27 | 283 | ULONGEST offset, ULONGEST len) |
d26e3629 KY |
284 | { |
285 | /* We make the process list snapshot when the object starts to be read. */ | |
286 | static const char *buf; | |
287 | static LONGEST len_avail = -1; | |
288 | static struct buffer buffer; | |
289 | ||
290 | if (offset == 0) | |
291 | { | |
292 | DIR *dirp; | |
293 | ||
294 | if (len_avail != -1 && len_avail != 0) | |
295 | buffer_free (&buffer); | |
296 | len_avail = 0; | |
297 | buf = NULL; | |
298 | buffer_init (&buffer); | |
299 | buffer_grow_str (&buffer, "<osdata type=\"processes\">\n"); | |
300 | ||
301 | dirp = opendir ("/proc"); | |
302 | if (dirp) | |
303 | { | |
b245bdfc | 304 | const int num_cores = sysconf (_SC_NPROCESSORS_ONLN); |
d26e3629 KY |
305 | struct dirent *dp; |
306 | ||
307 | while ((dp = readdir (dirp)) != NULL) | |
308 | { | |
85d4a676 | 309 | PID_T pid; |
d26e3629 KY |
310 | uid_t owner; |
311 | char user[UT_NAMESIZE]; | |
312 | char *command_line; | |
313 | int *cores; | |
314 | int task_count; | |
315 | char *cores_str; | |
316 | int i; | |
317 | ||
318 | if (!isdigit (dp->d_name[0]) | |
85d4a676 | 319 | || NAMELEN (dp) > MAX_PID_T_STRLEN) |
d26e3629 KY |
320 | continue; |
321 | ||
85d4a676 | 322 | sscanf (dp->d_name, "%lld", &pid); |
d26e3629 KY |
323 | command_line = commandline_from_pid (pid); |
324 | ||
325 | if (get_process_owner (&owner, pid) == 0) | |
326 | user_from_uid (user, sizeof (user), owner); | |
327 | else | |
328 | strcpy (user, "?"); | |
329 | ||
330 | /* Find CPU cores used by the process. */ | |
8d749320 | 331 | cores = XCNEWVEC (int, num_cores); |
184cd072 | 332 | task_count = get_cores_used_by_process (pid, cores, num_cores); |
d26e3629 KY |
333 | cores_str = (char *) xcalloc (task_count, sizeof ("4294967295") + 1); |
334 | ||
335 | for (i = 0; i < num_cores && task_count > 0; ++i) | |
336 | if (cores[i]) | |
337 | { | |
85d4a676 | 338 | char core_str[sizeof ("4294967295")]; |
d26e3629 KY |
339 | |
340 | sprintf (core_str, "%d", i); | |
341 | strcat (cores_str, core_str); | |
342 | ||
343 | task_count -= cores[i]; | |
344 | if (task_count > 0) | |
345 | strcat (cores_str, ","); | |
346 | } | |
347 | ||
348 | xfree (cores); | |
349 | ||
350 | buffer_xml_printf ( | |
351 | &buffer, | |
352 | "<item>" | |
85d4a676 | 353 | "<column name=\"pid\">%lld</column>" |
d26e3629 KY |
354 | "<column name=\"user\">%s</column>" |
355 | "<column name=\"command\">%s</column>" | |
356 | "<column name=\"cores\">%s</column>" | |
357 | "</item>", | |
358 | pid, | |
359 | user, | |
360 | command_line ? command_line : "", | |
361 | cores_str); | |
362 | ||
363 | xfree (command_line); | |
364 | xfree (cores_str); | |
365 | } | |
366 | ||
367 | closedir (dirp); | |
368 | } | |
369 | ||
370 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
371 | buf = buffer_finish (&buffer); | |
372 | len_avail = strlen (buf); | |
373 | } | |
374 | ||
375 | if (offset >= len_avail) | |
376 | { | |
377 | /* Done. Get rid of the buffer. */ | |
378 | buffer_free (&buffer); | |
379 | buf = NULL; | |
380 | len_avail = 0; | |
381 | return 0; | |
382 | } | |
383 | ||
384 | if (len > len_avail - offset) | |
385 | len = len_avail - offset; | |
386 | memcpy (readbuf, buf + offset, len); | |
387 | ||
388 | return len; | |
389 | } | |
390 | ||
b129dcac | 391 | /* A simple PID/PGID pair. */ |
85d4a676 | 392 | |
b129dcac | 393 | struct pid_pgid_entry |
85d4a676 | 394 | { |
b129dcac SM |
395 | pid_pgid_entry (PID_T pid_, PID_T pgid_) |
396 | : pid (pid_), pgid (pgid_) | |
397 | {} | |
85d4a676 | 398 | |
b129dcac SM |
399 | /* Return true if this pid is the leader of its process group. */ |
400 | ||
401 | bool is_leader () const | |
402 | { | |
403 | return pid == pgid; | |
404 | } | |
405 | ||
824dfcc3 | 406 | bool operator< (const pid_pgid_entry &other) const |
b129dcac SM |
407 | { |
408 | /* Sort by PGID. */ | |
409 | if (this->pgid != other.pgid) | |
410 | return this->pgid < other.pgid; | |
411 | ||
412 | /* Process group leaders always come first... */ | |
413 | if (this->is_leader ()) | |
463c08d1 TT |
414 | { |
415 | if (!other.is_leader ()) | |
416 | return true; | |
417 | } | |
418 | else if (other.is_leader ()) | |
b129dcac SM |
419 | return false; |
420 | ||
421 | /* ...else sort by PID. */ | |
422 | return this->pid < other.pid; | |
423 | } | |
424 | ||
425 | PID_T pid, pgid; | |
426 | }; | |
85d4a676 SS |
427 | |
428 | /* Collect all process groups from /proc. */ | |
429 | ||
430 | static LONGEST | |
431 | linux_xfer_osdata_processgroups (gdb_byte *readbuf, | |
dea80a27 | 432 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
433 | { |
434 | /* We make the process list snapshot when the object starts to be read. */ | |
435 | static const char *buf; | |
436 | static LONGEST len_avail = -1; | |
437 | static struct buffer buffer; | |
438 | ||
439 | if (offset == 0) | |
440 | { | |
441 | DIR *dirp; | |
442 | ||
443 | if (len_avail != -1 && len_avail != 0) | |
444 | buffer_free (&buffer); | |
445 | len_avail = 0; | |
446 | buf = NULL; | |
447 | buffer_init (&buffer); | |
448 | buffer_grow_str (&buffer, "<osdata type=\"process groups\">\n"); | |
449 | ||
450 | dirp = opendir ("/proc"); | |
451 | if (dirp) | |
452 | { | |
b129dcac | 453 | std::vector<pid_pgid_entry> process_list; |
85d4a676 | 454 | struct dirent *dp; |
b129dcac SM |
455 | |
456 | process_list.reserve (512); | |
85d4a676 SS |
457 | |
458 | /* Build list consisting of PIDs followed by their | |
459 | associated PGID. */ | |
460 | while ((dp = readdir (dirp)) != NULL) | |
461 | { | |
462 | PID_T pid, pgid; | |
463 | ||
464 | if (!isdigit (dp->d_name[0]) | |
465 | || NAMELEN (dp) > MAX_PID_T_STRLEN) | |
466 | continue; | |
467 | ||
468 | sscanf (dp->d_name, "%lld", &pid); | |
469 | pgid = getpgid (pid); | |
470 | ||
471 | if (pgid > 0) | |
b129dcac | 472 | process_list.emplace_back (pid, pgid); |
85d4a676 SS |
473 | } |
474 | ||
475 | closedir (dirp); | |
476 | ||
477 | /* Sort the process list. */ | |
b129dcac | 478 | std::sort (process_list.begin (), process_list.end ()); |
85d4a676 | 479 | |
b129dcac | 480 | for (const pid_pgid_entry &entry : process_list) |
85d4a676 | 481 | { |
b129dcac SM |
482 | PID_T pid = entry.pid; |
483 | PID_T pgid = entry.pgid; | |
85d4a676 SS |
484 | char leader_command[32]; |
485 | char *command_line; | |
486 | ||
487 | command_from_pid (leader_command, sizeof (leader_command), pgid); | |
488 | command_line = commandline_from_pid (pid); | |
489 | ||
490 | buffer_xml_printf ( | |
491 | &buffer, | |
492 | "<item>" | |
493 | "<column name=\"pgid\">%lld</column>" | |
494 | "<column name=\"leader command\">%s</column>" | |
495 | "<column name=\"pid\">%lld</column>" | |
496 | "<column name=\"command line\">%s</column>" | |
497 | "</item>", | |
498 | pgid, | |
499 | leader_command, | |
500 | pid, | |
501 | command_line ? command_line : ""); | |
502 | ||
503 | xfree (command_line); | |
504 | } | |
85d4a676 SS |
505 | } |
506 | ||
507 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
508 | buf = buffer_finish (&buffer); | |
509 | len_avail = strlen (buf); | |
510 | } | |
511 | ||
512 | if (offset >= len_avail) | |
513 | { | |
514 | /* Done. Get rid of the buffer. */ | |
515 | buffer_free (&buffer); | |
516 | buf = NULL; | |
517 | len_avail = 0; | |
518 | return 0; | |
519 | } | |
520 | ||
521 | if (len > len_avail - offset) | |
522 | len = len_avail - offset; | |
523 | memcpy (readbuf, buf + offset, len); | |
524 | ||
525 | return len; | |
526 | } | |
527 | ||
528 | /* Collect all the threads in /proc by iterating through processes and | |
529 | then tasks within each process. */ | |
530 | ||
d26e3629 KY |
531 | static LONGEST |
532 | linux_xfer_osdata_threads (gdb_byte *readbuf, | |
dea80a27 | 533 | ULONGEST offset, ULONGEST len) |
d26e3629 KY |
534 | { |
535 | /* We make the process list snapshot when the object starts to be read. */ | |
536 | static const char *buf; | |
537 | static LONGEST len_avail = -1; | |
538 | static struct buffer buffer; | |
539 | ||
540 | if (offset == 0) | |
541 | { | |
542 | DIR *dirp; | |
543 | ||
544 | if (len_avail != -1 && len_avail != 0) | |
545 | buffer_free (&buffer); | |
546 | len_avail = 0; | |
547 | buf = NULL; | |
548 | buffer_init (&buffer); | |
549 | buffer_grow_str (&buffer, "<osdata type=\"threads\">\n"); | |
550 | ||
551 | dirp = opendir ("/proc"); | |
552 | if (dirp) | |
553 | { | |
554 | struct dirent *dp; | |
555 | ||
556 | while ((dp = readdir (dirp)) != NULL) | |
557 | { | |
558 | struct stat statbuf; | |
559 | char procentry[sizeof ("/proc/4294967295")]; | |
560 | ||
561 | if (!isdigit (dp->d_name[0]) | |
562 | || NAMELEN (dp) > sizeof ("4294967295") - 1) | |
563 | continue; | |
564 | ||
97e64e5a YQ |
565 | xsnprintf (procentry, sizeof (procentry), "/proc/%s", |
566 | dp->d_name); | |
d26e3629 KY |
567 | if (stat (procentry, &statbuf) == 0 |
568 | && S_ISDIR (statbuf.st_mode)) | |
569 | { | |
570 | DIR *dirp2; | |
85d4a676 | 571 | PID_T pid; |
d26e3629 KY |
572 | char command[32]; |
573 | ||
528e1572 SM |
574 | std::string pathname |
575 | = string_printf ("/proc/%s/task", dp->d_name); | |
d26e3629 KY |
576 | |
577 | pid = atoi (dp->d_name); | |
578 | command_from_pid (command, sizeof (command), pid); | |
579 | ||
528e1572 | 580 | dirp2 = opendir (pathname.c_str ()); |
d26e3629 KY |
581 | |
582 | if (dirp2) | |
583 | { | |
584 | struct dirent *dp2; | |
585 | ||
586 | while ((dp2 = readdir (dirp2)) != NULL) | |
587 | { | |
85d4a676 | 588 | PID_T tid; |
d26e3629 KY |
589 | int core; |
590 | ||
591 | if (!isdigit (dp2->d_name[0]) | |
592 | || NAMELEN (dp2) > sizeof ("4294967295") - 1) | |
593 | continue; | |
594 | ||
595 | tid = atoi (dp2->d_name); | |
fd79271b | 596 | core = linux_common_core_of_thread (ptid_t (pid, tid, 0)); |
d26e3629 KY |
597 | |
598 | buffer_xml_printf ( | |
599 | &buffer, | |
600 | "<item>" | |
85d4a676 | 601 | "<column name=\"pid\">%lld</column>" |
d26e3629 | 602 | "<column name=\"command\">%s</column>" |
85d4a676 | 603 | "<column name=\"tid\">%lld</column>" |
d26e3629 KY |
604 | "<column name=\"core\">%d</column>" |
605 | "</item>", | |
606 | pid, | |
607 | command, | |
608 | tid, | |
609 | core); | |
610 | } | |
611 | ||
612 | closedir (dirp2); | |
613 | } | |
d26e3629 KY |
614 | } |
615 | } | |
616 | ||
617 | closedir (dirp); | |
618 | } | |
619 | ||
620 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
621 | buf = buffer_finish (&buffer); | |
622 | len_avail = strlen (buf); | |
623 | } | |
624 | ||
625 | if (offset >= len_avail) | |
626 | { | |
627 | /* Done. Get rid of the buffer. */ | |
628 | buffer_free (&buffer); | |
629 | buf = NULL; | |
630 | len_avail = 0; | |
631 | return 0; | |
632 | } | |
633 | ||
634 | if (len > len_avail - offset) | |
635 | len = len_avail - offset; | |
636 | memcpy (readbuf, buf + offset, len); | |
637 | ||
638 | return len; | |
639 | } | |
640 | ||
d33279b3 AT |
641 | /* Collect data about the cpus/cores on the system */ |
642 | ||
643 | static LONGEST | |
644 | linux_xfer_osdata_cpus (gdb_byte *readbuf, | |
645 | ULONGEST offset, ULONGEST len) | |
646 | { | |
647 | static const char *buf; | |
648 | static LONGEST len_avail = -1; | |
649 | static struct buffer buffer; | |
650 | ||
651 | if (offset == 0) | |
652 | { | |
d33279b3 AT |
653 | int first_item = 1; |
654 | ||
655 | if (len_avail != -1 && len_avail != 0) | |
656 | buffer_free (&buffer); | |
657 | len_avail = 0; | |
658 | buf = NULL; | |
659 | buffer_init (&buffer); | |
660 | buffer_grow_str (&buffer, "<osdata type=\"cpus\">\n"); | |
661 | ||
d419f42d | 662 | gdb_file_up fp = gdb_fopen_cloexec ("/proc/cpuinfo", "r"); |
d33279b3 AT |
663 | if (fp != NULL) |
664 | { | |
665 | char buf[8192]; | |
666 | ||
667 | do | |
668 | { | |
d419f42d | 669 | if (fgets (buf, sizeof (buf), fp.get ())) |
d33279b3 AT |
670 | { |
671 | char *key, *value; | |
672 | int i = 0; | |
673 | ||
674 | key = strtok (buf, ":"); | |
675 | if (key == NULL) | |
676 | continue; | |
677 | ||
678 | value = strtok (NULL, ":"); | |
679 | if (value == NULL) | |
680 | continue; | |
681 | ||
682 | while (key[i] != '\t' && key[i] != '\0') | |
683 | i++; | |
684 | ||
685 | key[i] = '\0'; | |
686 | ||
687 | i = 0; | |
688 | while (value[i] != '\t' && value[i] != '\0') | |
689 | i++; | |
690 | ||
691 | value[i] = '\0'; | |
692 | ||
693 | if (strcmp (key, "processor") == 0) | |
694 | { | |
695 | if (first_item) | |
696 | buffer_grow_str (&buffer, "<item>"); | |
697 | else | |
698 | buffer_grow_str (&buffer, "</item><item>"); | |
699 | ||
700 | first_item = 0; | |
701 | } | |
702 | ||
703 | buffer_xml_printf (&buffer, | |
704 | "<column name=\"%s\">%s</column>", | |
705 | key, | |
706 | value); | |
707 | } | |
708 | } | |
d419f42d | 709 | while (!feof (fp.get ())); |
d33279b3 AT |
710 | |
711 | if (first_item == 0) | |
712 | buffer_grow_str (&buffer, "</item>"); | |
d33279b3 AT |
713 | } |
714 | ||
715 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
716 | buf = buffer_finish (&buffer); | |
717 | len_avail = strlen (buf); | |
718 | } | |
719 | ||
720 | if (offset >= len_avail) | |
721 | { | |
722 | /* Done. Get rid of the buffer. */ | |
723 | buffer_free (&buffer); | |
724 | buf = NULL; | |
725 | len_avail = 0; | |
726 | return 0; | |
727 | } | |
728 | ||
729 | if (len > len_avail - offset) | |
730 | len = len_avail - offset; | |
731 | memcpy (readbuf, buf + offset, len); | |
732 | ||
733 | return len; | |
734 | } | |
735 | ||
85d4a676 SS |
736 | /* Collect all the open file descriptors found in /proc and put the details |
737 | found about them into READBUF. */ | |
738 | ||
739 | static LONGEST | |
740 | linux_xfer_osdata_fds (gdb_byte *readbuf, | |
dea80a27 | 741 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
742 | { |
743 | /* We make the process list snapshot when the object starts to be read. */ | |
744 | static const char *buf; | |
745 | static LONGEST len_avail = -1; | |
746 | static struct buffer buffer; | |
747 | ||
748 | if (offset == 0) | |
749 | { | |
750 | DIR *dirp; | |
751 | ||
752 | if (len_avail != -1 && len_avail != 0) | |
753 | buffer_free (&buffer); | |
754 | len_avail = 0; | |
755 | buf = NULL; | |
756 | buffer_init (&buffer); | |
757 | buffer_grow_str (&buffer, "<osdata type=\"files\">\n"); | |
758 | ||
759 | dirp = opendir ("/proc"); | |
760 | if (dirp) | |
761 | { | |
762 | struct dirent *dp; | |
763 | ||
764 | while ((dp = readdir (dirp)) != NULL) | |
765 | { | |
766 | struct stat statbuf; | |
767 | char procentry[sizeof ("/proc/4294967295")]; | |
768 | ||
769 | if (!isdigit (dp->d_name[0]) | |
770 | || NAMELEN (dp) > sizeof ("4294967295") - 1) | |
771 | continue; | |
772 | ||
97e64e5a YQ |
773 | xsnprintf (procentry, sizeof (procentry), "/proc/%s", |
774 | dp->d_name); | |
85d4a676 SS |
775 | if (stat (procentry, &statbuf) == 0 |
776 | && S_ISDIR (statbuf.st_mode)) | |
777 | { | |
85d4a676 SS |
778 | DIR *dirp2; |
779 | PID_T pid; | |
780 | char command[32]; | |
781 | ||
782 | pid = atoi (dp->d_name); | |
783 | command_from_pid (command, sizeof (command), pid); | |
784 | ||
528e1572 SM |
785 | std::string pathname |
786 | = string_printf ("/proc/%s/fd", dp->d_name); | |
787 | dirp2 = opendir (pathname.c_str ()); | |
85d4a676 SS |
788 | |
789 | if (dirp2) | |
790 | { | |
791 | struct dirent *dp2; | |
792 | ||
793 | while ((dp2 = readdir (dirp2)) != NULL) | |
794 | { | |
85d4a676 SS |
795 | char buf[1000]; |
796 | ssize_t rslt; | |
797 | ||
798 | if (!isdigit (dp2->d_name[0])) | |
799 | continue; | |
800 | ||
528e1572 SM |
801 | std::string fdname |
802 | = string_printf ("%s/%s", pathname.c_str (), | |
803 | dp2->d_name); | |
804 | rslt = readlink (fdname.c_str (), buf, | |
805 | sizeof (buf) - 1); | |
85d4a676 SS |
806 | if (rslt >= 0) |
807 | buf[rslt] = '\0'; | |
808 | ||
809 | buffer_xml_printf ( | |
810 | &buffer, | |
811 | "<item>" | |
812 | "<column name=\"pid\">%s</column>" | |
813 | "<column name=\"command\">%s</column>" | |
814 | "<column name=\"file descriptor\">%s</column>" | |
815 | "<column name=\"name\">%s</column>" | |
816 | "</item>", | |
817 | dp->d_name, | |
818 | command, | |
819 | dp2->d_name, | |
820 | (rslt >= 0 ? buf : dp2->d_name)); | |
821 | } | |
822 | ||
823 | closedir (dirp2); | |
824 | } | |
85d4a676 SS |
825 | } |
826 | } | |
827 | ||
828 | closedir (dirp); | |
829 | } | |
830 | ||
831 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
832 | buf = buffer_finish (&buffer); | |
833 | len_avail = strlen (buf); | |
834 | } | |
835 | ||
836 | if (offset >= len_avail) | |
837 | { | |
838 | /* Done. Get rid of the buffer. */ | |
839 | buffer_free (&buffer); | |
840 | buf = NULL; | |
841 | len_avail = 0; | |
842 | return 0; | |
843 | } | |
844 | ||
845 | if (len > len_avail - offset) | |
846 | len = len_avail - offset; | |
847 | memcpy (readbuf, buf + offset, len); | |
848 | ||
849 | return len; | |
850 | } | |
851 | ||
852 | /* Returns the socket state STATE in textual form. */ | |
853 | ||
854 | static const char * | |
855 | format_socket_state (unsigned char state) | |
856 | { | |
857 | /* Copied from include/net/tcp_states.h in the Linux kernel sources. */ | |
858 | enum { | |
859 | TCP_ESTABLISHED = 1, | |
860 | TCP_SYN_SENT, | |
861 | TCP_SYN_RECV, | |
862 | TCP_FIN_WAIT1, | |
863 | TCP_FIN_WAIT2, | |
864 | TCP_TIME_WAIT, | |
865 | TCP_CLOSE, | |
866 | TCP_CLOSE_WAIT, | |
867 | TCP_LAST_ACK, | |
868 | TCP_LISTEN, | |
869 | TCP_CLOSING | |
870 | }; | |
871 | ||
872 | switch (state) | |
873 | { | |
874 | case TCP_ESTABLISHED: | |
875 | return "ESTABLISHED"; | |
876 | case TCP_SYN_SENT: | |
877 | return "SYN_SENT"; | |
878 | case TCP_SYN_RECV: | |
879 | return "SYN_RECV"; | |
880 | case TCP_FIN_WAIT1: | |
881 | return "FIN_WAIT1"; | |
882 | case TCP_FIN_WAIT2: | |
883 | return "FIN_WAIT2"; | |
884 | case TCP_TIME_WAIT: | |
885 | return "TIME_WAIT"; | |
886 | case TCP_CLOSE: | |
887 | return "CLOSE"; | |
888 | case TCP_CLOSE_WAIT: | |
889 | return "CLOSE_WAIT"; | |
890 | case TCP_LAST_ACK: | |
891 | return "LAST_ACK"; | |
892 | case TCP_LISTEN: | |
893 | return "LISTEN"; | |
894 | case TCP_CLOSING: | |
895 | return "CLOSING"; | |
896 | default: | |
897 | return "(unknown)"; | |
898 | } | |
899 | } | |
900 | ||
901 | union socket_addr | |
902 | { | |
903 | struct sockaddr sa; | |
904 | struct sockaddr_in sin; | |
905 | struct sockaddr_in6 sin6; | |
906 | }; | |
907 | ||
908 | /* Auxiliary function used by linux_xfer_osdata_isocket. Formats | |
909 | information for all open internet sockets of type FAMILY on the | |
910 | system into BUFFER. If TCP is set, only TCP sockets are processed, | |
911 | otherwise only UDP sockets are processed. */ | |
912 | ||
913 | static void | |
914 | print_sockets (unsigned short family, int tcp, struct buffer *buffer) | |
915 | { | |
916 | const char *proc_file; | |
85d4a676 SS |
917 | |
918 | if (family == AF_INET) | |
919 | proc_file = tcp ? "/proc/net/tcp" : "/proc/net/udp"; | |
920 | else if (family == AF_INET6) | |
921 | proc_file = tcp ? "/proc/net/tcp6" : "/proc/net/udp6"; | |
922 | else | |
923 | return; | |
924 | ||
d419f42d | 925 | gdb_file_up fp = gdb_fopen_cloexec (proc_file, "r"); |
85d4a676 SS |
926 | if (fp) |
927 | { | |
928 | char buf[8192]; | |
929 | ||
930 | do | |
931 | { | |
d419f42d | 932 | if (fgets (buf, sizeof (buf), fp.get ())) |
85d4a676 SS |
933 | { |
934 | uid_t uid; | |
85d4a676 | 935 | unsigned int local_port, remote_port, state; |
85d4a676 | 936 | char local_address[NI_MAXHOST], remote_address[NI_MAXHOST]; |
85d4a676 SS |
937 | int result; |
938 | ||
f60db4f0 GB |
939 | #if NI_MAXHOST <= 32 |
940 | #error "local_address and remote_address buffers too small" | |
941 | #endif | |
942 | ||
85d4a676 | 943 | result = sscanf (buf, |
f60db4f0 | 944 | "%*d: %32[0-9A-F]:%X %32[0-9A-F]:%X %X %*X:%*X %*X:%*X %*X %d %*d %*u %*s\n", |
85d4a676 SS |
945 | local_address, &local_port, |
946 | remote_address, &remote_port, | |
947 | &state, | |
f60db4f0 | 948 | &uid); |
85d4a676 | 949 | |
f60db4f0 | 950 | if (result == 6) |
85d4a676 SS |
951 | { |
952 | union socket_addr locaddr, remaddr; | |
953 | size_t addr_size; | |
954 | char user[UT_NAMESIZE]; | |
955 | char local_service[NI_MAXSERV], remote_service[NI_MAXSERV]; | |
956 | ||
957 | if (family == AF_INET) | |
958 | { | |
959 | sscanf (local_address, "%X", | |
960 | &locaddr.sin.sin_addr.s_addr); | |
961 | sscanf (remote_address, "%X", | |
962 | &remaddr.sin.sin_addr.s_addr); | |
963 | ||
964 | locaddr.sin.sin_port = htons (local_port); | |
965 | remaddr.sin.sin_port = htons (remote_port); | |
966 | ||
967 | addr_size = sizeof (struct sockaddr_in); | |
968 | } | |
969 | else | |
970 | { | |
971 | sscanf (local_address, "%8X%8X%8X%8X", | |
972 | locaddr.sin6.sin6_addr.s6_addr32, | |
973 | locaddr.sin6.sin6_addr.s6_addr32 + 1, | |
974 | locaddr.sin6.sin6_addr.s6_addr32 + 2, | |
975 | locaddr.sin6.sin6_addr.s6_addr32 + 3); | |
976 | sscanf (remote_address, "%8X%8X%8X%8X", | |
977 | remaddr.sin6.sin6_addr.s6_addr32, | |
978 | remaddr.sin6.sin6_addr.s6_addr32 + 1, | |
979 | remaddr.sin6.sin6_addr.s6_addr32 + 2, | |
980 | remaddr.sin6.sin6_addr.s6_addr32 + 3); | |
981 | ||
982 | locaddr.sin6.sin6_port = htons (local_port); | |
983 | remaddr.sin6.sin6_port = htons (remote_port); | |
984 | ||
985 | locaddr.sin6.sin6_flowinfo = 0; | |
986 | remaddr.sin6.sin6_flowinfo = 0; | |
987 | locaddr.sin6.sin6_scope_id = 0; | |
988 | remaddr.sin6.sin6_scope_id = 0; | |
989 | ||
990 | addr_size = sizeof (struct sockaddr_in6); | |
991 | } | |
992 | ||
993 | locaddr.sa.sa_family = remaddr.sa.sa_family = family; | |
994 | ||
995 | result = getnameinfo (&locaddr.sa, addr_size, | |
996 | local_address, sizeof (local_address), | |
997 | local_service, sizeof (local_service), | |
998 | NI_NUMERICHOST | NI_NUMERICSERV | |
999 | | (tcp ? 0 : NI_DGRAM)); | |
1000 | if (result) | |
1001 | continue; | |
1002 | ||
1003 | result = getnameinfo (&remaddr.sa, addr_size, | |
1004 | remote_address, | |
1005 | sizeof (remote_address), | |
1006 | remote_service, | |
1007 | sizeof (remote_service), | |
1008 | NI_NUMERICHOST | NI_NUMERICSERV | |
1009 | | (tcp ? 0 : NI_DGRAM)); | |
1010 | if (result) | |
1011 | continue; | |
1012 | ||
1013 | user_from_uid (user, sizeof (user), uid); | |
1014 | ||
1015 | buffer_xml_printf ( | |
1016 | buffer, | |
1017 | "<item>" | |
1018 | "<column name=\"local address\">%s</column>" | |
1019 | "<column name=\"local port\">%s</column>" | |
1020 | "<column name=\"remote address\">%s</column>" | |
1021 | "<column name=\"remote port\">%s</column>" | |
1022 | "<column name=\"state\">%s</column>" | |
1023 | "<column name=\"user\">%s</column>" | |
1024 | "<column name=\"family\">%s</column>" | |
1025 | "<column name=\"protocol\">%s</column>" | |
1026 | "</item>", | |
1027 | local_address, | |
1028 | local_service, | |
1029 | remote_address, | |
1030 | remote_service, | |
1031 | format_socket_state (state), | |
1032 | user, | |
1033 | (family == AF_INET) ? "INET" : "INET6", | |
1034 | tcp ? "STREAM" : "DGRAM"); | |
1035 | } | |
1036 | } | |
1037 | } | |
d419f42d | 1038 | while (!feof (fp.get ())); |
85d4a676 SS |
1039 | } |
1040 | } | |
1041 | ||
1042 | /* Collect data about internet sockets and write it into READBUF. */ | |
1043 | ||
1044 | static LONGEST | |
1045 | linux_xfer_osdata_isockets (gdb_byte *readbuf, | |
dea80a27 | 1046 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1047 | { |
1048 | static const char *buf; | |
1049 | static LONGEST len_avail = -1; | |
1050 | static struct buffer buffer; | |
1051 | ||
1052 | if (offset == 0) | |
1053 | { | |
1054 | if (len_avail != -1 && len_avail != 0) | |
1055 | buffer_free (&buffer); | |
1056 | len_avail = 0; | |
1057 | buf = NULL; | |
1058 | buffer_init (&buffer); | |
1059 | buffer_grow_str (&buffer, "<osdata type=\"I sockets\">\n"); | |
1060 | ||
1061 | print_sockets (AF_INET, 1, &buffer); | |
1062 | print_sockets (AF_INET, 0, &buffer); | |
1063 | print_sockets (AF_INET6, 1, &buffer); | |
1064 | print_sockets (AF_INET6, 0, &buffer); | |
1065 | ||
1066 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1067 | buf = buffer_finish (&buffer); | |
1068 | len_avail = strlen (buf); | |
1069 | } | |
1070 | ||
1071 | if (offset >= len_avail) | |
1072 | { | |
1073 | /* Done. Get rid of the buffer. */ | |
1074 | buffer_free (&buffer); | |
1075 | buf = NULL; | |
1076 | len_avail = 0; | |
1077 | return 0; | |
1078 | } | |
1079 | ||
1080 | if (len > len_avail - offset) | |
1081 | len = len_avail - offset; | |
1082 | memcpy (readbuf, buf + offset, len); | |
1083 | ||
1084 | return len; | |
1085 | } | |
1086 | ||
1087 | /* Converts the time SECONDS into textual form and copies it into a | |
1088 | buffer TIME, with at most MAXLEN characters copied. */ | |
1089 | ||
1090 | static void | |
1091 | time_from_time_t (char *time, int maxlen, TIME_T seconds) | |
1092 | { | |
1093 | if (!seconds) | |
1094 | time[0] = '\0'; | |
1095 | else | |
1096 | { | |
1097 | time_t t = (time_t) seconds; | |
1098 | ||
1099 | strncpy (time, ctime (&t), maxlen); | |
1100 | time[maxlen - 1] = '\0'; | |
1101 | } | |
1102 | } | |
1103 | ||
1104 | /* Finds the group name for the group GID and copies it into GROUP. | |
1105 | At most MAXLEN characters are copied. */ | |
1106 | ||
1107 | static void | |
1108 | group_from_gid (char *group, int maxlen, gid_t gid) | |
1109 | { | |
1110 | struct group *grentry = getgrgid (gid); | |
1111 | ||
1112 | if (grentry) | |
1113 | { | |
1114 | strncpy (group, grentry->gr_name, maxlen); | |
1115 | /* Ensure that the group name is null-terminated. */ | |
1116 | group[maxlen - 1] = '\0'; | |
1117 | } | |
1118 | else | |
1119 | group[0] = '\0'; | |
1120 | } | |
1121 | ||
1122 | /* Collect data about shared memory recorded in /proc and write it | |
1123 | into READBUF. */ | |
1124 | ||
1125 | static LONGEST | |
1126 | linux_xfer_osdata_shm (gdb_byte *readbuf, | |
dea80a27 | 1127 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1128 | { |
1129 | static const char *buf; | |
1130 | static LONGEST len_avail = -1; | |
1131 | static struct buffer buffer; | |
1132 | ||
1133 | if (offset == 0) | |
1134 | { | |
85d4a676 SS |
1135 | if (len_avail != -1 && len_avail != 0) |
1136 | buffer_free (&buffer); | |
1137 | len_avail = 0; | |
1138 | buf = NULL; | |
1139 | buffer_init (&buffer); | |
1140 | buffer_grow_str (&buffer, "<osdata type=\"shared memory\">\n"); | |
1141 | ||
d419f42d | 1142 | gdb_file_up fp = gdb_fopen_cloexec ("/proc/sysvipc/shm", "r"); |
85d4a676 SS |
1143 | if (fp) |
1144 | { | |
1145 | char buf[8192]; | |
1146 | ||
1147 | do | |
1148 | { | |
d419f42d | 1149 | if (fgets (buf, sizeof (buf), fp.get ())) |
85d4a676 SS |
1150 | { |
1151 | key_t key; | |
1152 | uid_t uid, cuid; | |
1153 | gid_t gid, cgid; | |
1154 | PID_T cpid, lpid; | |
1155 | int shmid, size, nattch; | |
1156 | TIME_T atime, dtime, ctime; | |
1157 | unsigned int perms; | |
1158 | int items_read; | |
1159 | ||
1160 | items_read = sscanf (buf, | |
1161 | "%d %d %o %d %lld %lld %d %u %u %u %u %lld %lld %lld", | |
1162 | &key, &shmid, &perms, &size, | |
1163 | &cpid, &lpid, | |
1164 | &nattch, | |
1165 | &uid, &gid, &cuid, &cgid, | |
1166 | &atime, &dtime, &ctime); | |
1167 | ||
1168 | if (items_read == 14) | |
1169 | { | |
1170 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1171 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1172 | char ccmd[32], lcmd[32]; | |
1173 | char atime_str[32], dtime_str[32], ctime_str[32]; | |
1174 | ||
1175 | user_from_uid (user, sizeof (user), uid); | |
1176 | group_from_gid (group, sizeof (group), gid); | |
1177 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1178 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1179 | ||
1180 | command_from_pid (ccmd, sizeof (ccmd), cpid); | |
1181 | command_from_pid (lcmd, sizeof (lcmd), lpid); | |
1182 | ||
1183 | time_from_time_t (atime_str, sizeof (atime_str), atime); | |
1184 | time_from_time_t (dtime_str, sizeof (dtime_str), dtime); | |
1185 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1186 | ||
1187 | buffer_xml_printf ( | |
1188 | &buffer, | |
1189 | "<item>" | |
1190 | "<column name=\"key\">%d</column>" | |
1191 | "<column name=\"shmid\">%d</column>" | |
1192 | "<column name=\"permissions\">%o</column>" | |
1193 | "<column name=\"size\">%d</column>" | |
1194 | "<column name=\"creator command\">%s</column>" | |
1195 | "<column name=\"last op. command\">%s</column>" | |
1196 | "<column name=\"num attached\">%d</column>" | |
1197 | "<column name=\"user\">%s</column>" | |
1198 | "<column name=\"group\">%s</column>" | |
1199 | "<column name=\"creator user\">%s</column>" | |
1200 | "<column name=\"creator group\">%s</column>" | |
1201 | "<column name=\"last shmat() time\">%s</column>" | |
1202 | "<column name=\"last shmdt() time\">%s</column>" | |
1203 | "<column name=\"last shmctl() time\">%s</column>" | |
1204 | "</item>", | |
1205 | key, | |
1206 | shmid, | |
1207 | perms, | |
1208 | size, | |
1209 | ccmd, | |
1210 | lcmd, | |
1211 | nattch, | |
1212 | user, | |
1213 | group, | |
1214 | cuser, | |
1215 | cgroup, | |
1216 | atime_str, | |
1217 | dtime_str, | |
1218 | ctime_str); | |
1219 | } | |
1220 | } | |
1221 | } | |
d419f42d | 1222 | while (!feof (fp.get ())); |
85d4a676 SS |
1223 | } |
1224 | ||
1225 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1226 | buf = buffer_finish (&buffer); | |
1227 | len_avail = strlen (buf); | |
1228 | } | |
1229 | ||
1230 | if (offset >= len_avail) | |
1231 | { | |
1232 | /* Done. Get rid of the buffer. */ | |
1233 | buffer_free (&buffer); | |
1234 | buf = NULL; | |
1235 | len_avail = 0; | |
1236 | return 0; | |
1237 | } | |
1238 | ||
1239 | if (len > len_avail - offset) | |
1240 | len = len_avail - offset; | |
1241 | memcpy (readbuf, buf + offset, len); | |
1242 | ||
1243 | return len; | |
1244 | } | |
1245 | ||
1246 | /* Collect data about semaphores recorded in /proc and write it | |
1247 | into READBUF. */ | |
1248 | ||
1249 | static LONGEST | |
1250 | linux_xfer_osdata_sem (gdb_byte *readbuf, | |
dea80a27 | 1251 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1252 | { |
1253 | static const char *buf; | |
1254 | static LONGEST len_avail = -1; | |
1255 | static struct buffer buffer; | |
1256 | ||
1257 | if (offset == 0) | |
1258 | { | |
85d4a676 SS |
1259 | if (len_avail != -1 && len_avail != 0) |
1260 | buffer_free (&buffer); | |
1261 | len_avail = 0; | |
1262 | buf = NULL; | |
1263 | buffer_init (&buffer); | |
1264 | buffer_grow_str (&buffer, "<osdata type=\"semaphores\">\n"); | |
1265 | ||
d419f42d | 1266 | gdb_file_up fp = gdb_fopen_cloexec ("/proc/sysvipc/sem", "r"); |
85d4a676 SS |
1267 | if (fp) |
1268 | { | |
1269 | char buf[8192]; | |
1270 | ||
1271 | do | |
1272 | { | |
d419f42d | 1273 | if (fgets (buf, sizeof (buf), fp.get ())) |
85d4a676 SS |
1274 | { |
1275 | key_t key; | |
1276 | uid_t uid, cuid; | |
1277 | gid_t gid, cgid; | |
1278 | unsigned int perms, nsems; | |
1279 | int semid; | |
1280 | TIME_T otime, ctime; | |
1281 | int items_read; | |
1282 | ||
1283 | items_read = sscanf (buf, | |
1284 | "%d %d %o %u %d %d %d %d %lld %lld", | |
1285 | &key, &semid, &perms, &nsems, | |
1286 | &uid, &gid, &cuid, &cgid, | |
1287 | &otime, &ctime); | |
1288 | ||
1289 | if (items_read == 10) | |
1290 | { | |
1291 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1292 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1293 | char otime_str[32], ctime_str[32]; | |
1294 | ||
1295 | user_from_uid (user, sizeof (user), uid); | |
1296 | group_from_gid (group, sizeof (group), gid); | |
1297 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1298 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1299 | ||
1300 | time_from_time_t (otime_str, sizeof (otime_str), otime); | |
1301 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1302 | ||
1303 | buffer_xml_printf ( | |
1304 | &buffer, | |
1305 | "<item>" | |
1306 | "<column name=\"key\">%d</column>" | |
1307 | "<column name=\"semid\">%d</column>" | |
1308 | "<column name=\"permissions\">%o</column>" | |
1309 | "<column name=\"num semaphores\">%u</column>" | |
1310 | "<column name=\"user\">%s</column>" | |
1311 | "<column name=\"group\">%s</column>" | |
1312 | "<column name=\"creator user\">%s</column>" | |
1313 | "<column name=\"creator group\">%s</column>" | |
1314 | "<column name=\"last semop() time\">%s</column>" | |
1315 | "<column name=\"last semctl() time\">%s</column>" | |
1316 | "</item>", | |
1317 | key, | |
1318 | semid, | |
1319 | perms, | |
1320 | nsems, | |
1321 | user, | |
1322 | group, | |
1323 | cuser, | |
1324 | cgroup, | |
1325 | otime_str, | |
1326 | ctime_str); | |
1327 | } | |
1328 | } | |
1329 | } | |
d419f42d | 1330 | while (!feof (fp.get ())); |
85d4a676 SS |
1331 | } |
1332 | ||
1333 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1334 | buf = buffer_finish (&buffer); | |
1335 | len_avail = strlen (buf); | |
1336 | } | |
1337 | ||
1338 | if (offset >= len_avail) | |
1339 | { | |
1340 | /* Done. Get rid of the buffer. */ | |
1341 | buffer_free (&buffer); | |
1342 | buf = NULL; | |
1343 | len_avail = 0; | |
1344 | return 0; | |
1345 | } | |
1346 | ||
1347 | if (len > len_avail - offset) | |
1348 | len = len_avail - offset; | |
1349 | memcpy (readbuf, buf + offset, len); | |
1350 | ||
1351 | return len; | |
1352 | } | |
1353 | ||
1354 | /* Collect data about message queues recorded in /proc and write it | |
1355 | into READBUF. */ | |
1356 | ||
1357 | static LONGEST | |
1358 | linux_xfer_osdata_msg (gdb_byte *readbuf, | |
dea80a27 | 1359 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1360 | { |
1361 | static const char *buf; | |
1362 | static LONGEST len_avail = -1; | |
1363 | static struct buffer buffer; | |
1364 | ||
1365 | if (offset == 0) | |
1366 | { | |
85d4a676 SS |
1367 | if (len_avail != -1 && len_avail != 0) |
1368 | buffer_free (&buffer); | |
1369 | len_avail = 0; | |
1370 | buf = NULL; | |
1371 | buffer_init (&buffer); | |
1372 | buffer_grow_str (&buffer, "<osdata type=\"message queues\">\n"); | |
1373 | ||
d419f42d | 1374 | gdb_file_up fp = gdb_fopen_cloexec ("/proc/sysvipc/msg", "r"); |
85d4a676 SS |
1375 | if (fp) |
1376 | { | |
1377 | char buf[8192]; | |
1378 | ||
1379 | do | |
1380 | { | |
d419f42d | 1381 | if (fgets (buf, sizeof (buf), fp.get ())) |
85d4a676 SS |
1382 | { |
1383 | key_t key; | |
1384 | PID_T lspid, lrpid; | |
1385 | uid_t uid, cuid; | |
1386 | gid_t gid, cgid; | |
1387 | unsigned int perms, cbytes, qnum; | |
1388 | int msqid; | |
1389 | TIME_T stime, rtime, ctime; | |
1390 | int items_read; | |
1391 | ||
1392 | items_read = sscanf (buf, | |
1393 | "%d %d %o %u %u %lld %lld %d %d %d %d %lld %lld %lld", | |
1394 | &key, &msqid, &perms, &cbytes, &qnum, | |
1395 | &lspid, &lrpid, &uid, &gid, &cuid, &cgid, | |
1396 | &stime, &rtime, &ctime); | |
1397 | ||
1398 | if (items_read == 14) | |
1399 | { | |
1400 | char user[UT_NAMESIZE], group[UT_NAMESIZE]; | |
1401 | char cuser[UT_NAMESIZE], cgroup[UT_NAMESIZE]; | |
1402 | char lscmd[32], lrcmd[32]; | |
1403 | char stime_str[32], rtime_str[32], ctime_str[32]; | |
1404 | ||
1405 | user_from_uid (user, sizeof (user), uid); | |
1406 | group_from_gid (group, sizeof (group), gid); | |
1407 | user_from_uid (cuser, sizeof (cuser), cuid); | |
1408 | group_from_gid (cgroup, sizeof (cgroup), cgid); | |
1409 | ||
1410 | command_from_pid (lscmd, sizeof (lscmd), lspid); | |
1411 | command_from_pid (lrcmd, sizeof (lrcmd), lrpid); | |
1412 | ||
1413 | time_from_time_t (stime_str, sizeof (stime_str), stime); | |
1414 | time_from_time_t (rtime_str, sizeof (rtime_str), rtime); | |
1415 | time_from_time_t (ctime_str, sizeof (ctime_str), ctime); | |
1416 | ||
1417 | buffer_xml_printf ( | |
1418 | &buffer, | |
1419 | "<item>" | |
1420 | "<column name=\"key\">%d</column>" | |
1421 | "<column name=\"msqid\">%d</column>" | |
1422 | "<column name=\"permissions\">%o</column>" | |
1423 | "<column name=\"num used bytes\">%u</column>" | |
1424 | "<column name=\"num messages\">%u</column>" | |
1425 | "<column name=\"last msgsnd() command\">%s</column>" | |
1426 | "<column name=\"last msgrcv() command\">%s</column>" | |
1427 | "<column name=\"user\">%s</column>" | |
1428 | "<column name=\"group\">%s</column>" | |
1429 | "<column name=\"creator user\">%s</column>" | |
1430 | "<column name=\"creator group\">%s</column>" | |
1431 | "<column name=\"last msgsnd() time\">%s</column>" | |
1432 | "<column name=\"last msgrcv() time\">%s</column>" | |
1433 | "<column name=\"last msgctl() time\">%s</column>" | |
1434 | "</item>", | |
1435 | key, | |
1436 | msqid, | |
1437 | perms, | |
1438 | cbytes, | |
1439 | qnum, | |
1440 | lscmd, | |
1441 | lrcmd, | |
1442 | user, | |
1443 | group, | |
1444 | cuser, | |
1445 | cgroup, | |
1446 | stime_str, | |
1447 | rtime_str, | |
1448 | ctime_str); | |
1449 | } | |
1450 | } | |
1451 | } | |
d419f42d | 1452 | while (!feof (fp.get ())); |
85d4a676 SS |
1453 | } |
1454 | ||
1455 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1456 | buf = buffer_finish (&buffer); | |
1457 | len_avail = strlen (buf); | |
1458 | } | |
1459 | ||
1460 | if (offset >= len_avail) | |
1461 | { | |
1462 | /* Done. Get rid of the buffer. */ | |
1463 | buffer_free (&buffer); | |
1464 | buf = NULL; | |
1465 | len_avail = 0; | |
1466 | return 0; | |
1467 | } | |
1468 | ||
1469 | if (len > len_avail - offset) | |
1470 | len = len_avail - offset; | |
1471 | memcpy (readbuf, buf + offset, len); | |
1472 | ||
1473 | return len; | |
1474 | } | |
1475 | ||
1476 | /* Collect data about loaded kernel modules and write it into | |
1477 | READBUF. */ | |
1478 | ||
1479 | static LONGEST | |
1480 | linux_xfer_osdata_modules (gdb_byte *readbuf, | |
dea80a27 | 1481 | ULONGEST offset, ULONGEST len) |
85d4a676 SS |
1482 | { |
1483 | static const char *buf; | |
1484 | static LONGEST len_avail = -1; | |
1485 | static struct buffer buffer; | |
1486 | ||
1487 | if (offset == 0) | |
1488 | { | |
85d4a676 SS |
1489 | if (len_avail != -1 && len_avail != 0) |
1490 | buffer_free (&buffer); | |
1491 | len_avail = 0; | |
1492 | buf = NULL; | |
1493 | buffer_init (&buffer); | |
1494 | buffer_grow_str (&buffer, "<osdata type=\"modules\">\n"); | |
1495 | ||
d419f42d | 1496 | gdb_file_up fp = gdb_fopen_cloexec ("/proc/modules", "r"); |
85d4a676 SS |
1497 | if (fp) |
1498 | { | |
1499 | char buf[8192]; | |
1500 | ||
1501 | do | |
1502 | { | |
d419f42d | 1503 | if (fgets (buf, sizeof (buf), fp.get ())) |
85d4a676 | 1504 | { |
f60db4f0 | 1505 | char *name, *dependencies, *status, *tmp; |
85d4a676 SS |
1506 | unsigned int size; |
1507 | unsigned long long address; | |
1508 | int uses; | |
85d4a676 | 1509 | |
f60db4f0 GB |
1510 | name = strtok (buf, " "); |
1511 | if (name == NULL) | |
1512 | continue; | |
1513 | ||
1514 | tmp = strtok (NULL, " "); | |
1515 | if (tmp == NULL) | |
1516 | continue; | |
1517 | if (sscanf (tmp, "%u", &size) != 1) | |
1518 | continue; | |
1519 | ||
1520 | tmp = strtok (NULL, " "); | |
1521 | if (tmp == NULL) | |
1522 | continue; | |
1523 | if (sscanf (tmp, "%d", &uses) != 1) | |
1524 | continue; | |
1525 | ||
1526 | dependencies = strtok (NULL, " "); | |
1527 | if (dependencies == NULL) | |
1528 | continue; | |
1529 | ||
1530 | status = strtok (NULL, " "); | |
1531 | if (status == NULL) | |
1532 | continue; | |
1533 | ||
1534 | tmp = strtok (NULL, "\n"); | |
1535 | if (tmp == NULL) | |
1536 | continue; | |
1537 | if (sscanf (tmp, "%llx", &address) != 1) | |
1538 | continue; | |
1539 | ||
1540 | buffer_xml_printf ( | |
85d4a676 SS |
1541 | &buffer, |
1542 | "<item>" | |
1543 | "<column name=\"name\">%s</column>" | |
1544 | "<column name=\"size\">%u</column>" | |
1545 | "<column name=\"num uses\">%d</column>" | |
1546 | "<column name=\"dependencies\">%s</column>" | |
1547 | "<column name=\"status\">%s</column>" | |
1548 | "<column name=\"address\">%llx</column>" | |
1549 | "</item>", | |
1550 | name, | |
1551 | size, | |
1552 | uses, | |
1553 | dependencies, | |
1554 | status, | |
1555 | address); | |
1556 | } | |
1557 | } | |
d419f42d | 1558 | while (!feof (fp.get ())); |
85d4a676 SS |
1559 | } |
1560 | ||
1561 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1562 | buf = buffer_finish (&buffer); | |
1563 | len_avail = strlen (buf); | |
1564 | } | |
1565 | ||
1566 | if (offset >= len_avail) | |
1567 | { | |
1568 | /* Done. Get rid of the buffer. */ | |
1569 | buffer_free (&buffer); | |
1570 | buf = NULL; | |
1571 | len_avail = 0; | |
1572 | return 0; | |
1573 | } | |
1574 | ||
1575 | if (len > len_avail - offset) | |
1576 | len = len_avail - offset; | |
1577 | memcpy (readbuf, buf + offset, len); | |
1578 | ||
1579 | return len; | |
1580 | } | |
1581 | ||
d26e3629 | 1582 | struct osdata_type { |
a121b7c1 PA |
1583 | const char *type; |
1584 | const char *title; | |
1585 | const char *description; | |
dea80a27 | 1586 | LONGEST (*getter) (gdb_byte *readbuf, ULONGEST offset, ULONGEST len); |
d26e3629 | 1587 | } osdata_table[] = { |
d33279b3 AT |
1588 | { "cpus", "CPUs", "Listing of all cpus/cores on the system", |
1589 | linux_xfer_osdata_cpus }, | |
1590 | { "files", "File descriptors", "Listing of all file descriptors", | |
1591 | linux_xfer_osdata_fds }, | |
1592 | { "modules", "Kernel modules", "Listing of all loaded kernel modules", | |
1593 | linux_xfer_osdata_modules }, | |
1594 | { "msg", "Message queues", "Listing of all message queues", | |
1595 | linux_xfer_osdata_msg }, | |
71caed83 | 1596 | { "processes", "Processes", "Listing of all processes", |
85d4a676 | 1597 | linux_xfer_osdata_processes }, |
71caed83 | 1598 | { "procgroups", "Process groups", "Listing of all process groups", |
85d4a676 | 1599 | linux_xfer_osdata_processgroups }, |
71caed83 | 1600 | { "semaphores", "Semaphores", "Listing of all semaphores", |
85d4a676 | 1601 | linux_xfer_osdata_sem }, |
d33279b3 AT |
1602 | { "shm", "Shared-memory regions", "Listing of all shared-memory regions", |
1603 | linux_xfer_osdata_shm }, | |
1604 | { "sockets", "Sockets", "Listing of all internet-domain sockets", | |
1605 | linux_xfer_osdata_isockets }, | |
1606 | { "threads", "Threads", "Listing of all threads", | |
1607 | linux_xfer_osdata_threads }, | |
d26e3629 KY |
1608 | { NULL, NULL, NULL } |
1609 | }; | |
1610 | ||
1611 | LONGEST | |
1612 | linux_common_xfer_osdata (const char *annex, gdb_byte *readbuf, | |
dea80a27 | 1613 | ULONGEST offset, ULONGEST len) |
d26e3629 KY |
1614 | { |
1615 | if (!annex || *annex == '\0') | |
1616 | { | |
1617 | static const char *buf; | |
1618 | static LONGEST len_avail = -1; | |
1619 | static struct buffer buffer; | |
1620 | ||
1621 | if (offset == 0) | |
1622 | { | |
1623 | int i; | |
1624 | ||
1625 | if (len_avail != -1 && len_avail != 0) | |
1626 | buffer_free (&buffer); | |
1627 | len_avail = 0; | |
1628 | buf = NULL; | |
1629 | buffer_init (&buffer); | |
1630 | buffer_grow_str (&buffer, "<osdata type=\"types\">\n"); | |
1631 | ||
1632 | for (i = 0; osdata_table[i].type; ++i) | |
1633 | buffer_xml_printf ( | |
1634 | &buffer, | |
1635 | "<item>" | |
1636 | "<column name=\"Type\">%s</column>" | |
1637 | "<column name=\"Description\">%s</column>" | |
71caed83 | 1638 | "<column name=\"Title\">%s</column>" |
d26e3629 KY |
1639 | "</item>", |
1640 | osdata_table[i].type, | |
71caed83 SS |
1641 | osdata_table[i].description, |
1642 | osdata_table[i].title); | |
d26e3629 KY |
1643 | |
1644 | buffer_grow_str0 (&buffer, "</osdata>\n"); | |
1645 | buf = buffer_finish (&buffer); | |
1646 | len_avail = strlen (buf); | |
1647 | } | |
1648 | ||
1649 | if (offset >= len_avail) | |
1650 | { | |
1651 | /* Done. Get rid of the buffer. */ | |
1652 | buffer_free (&buffer); | |
1653 | buf = NULL; | |
1654 | len_avail = 0; | |
1655 | return 0; | |
1656 | } | |
1657 | ||
1658 | if (len > len_avail - offset) | |
1659 | len = len_avail - offset; | |
1660 | memcpy (readbuf, buf + offset, len); | |
1661 | ||
1662 | return len; | |
1663 | } | |
1664 | else | |
1665 | { | |
1666 | int i; | |
1667 | ||
1668 | for (i = 0; osdata_table[i].type; ++i) | |
1669 | { | |
1670 | if (strcmp (annex, osdata_table[i].type) == 0) | |
1671 | { | |
1672 | gdb_assert (readbuf); | |
1673 | ||
1674 | return (osdata_table[i].getter) (readbuf, offset, len); | |
1675 | } | |
1676 | } | |
1677 | ||
1678 | return 0; | |
1679 | } | |
1680 | } |