Commit | Line | Data |
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4aa995e1 PA |
1 | /* Target-dependent code for GNU/Linux, architecture independent. |
2 | ||
28e7fd62 | 3 | Copyright (C) 2009-2013 Free Software Foundation, Inc. |
4aa995e1 PA |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
20 | #include "defs.h" | |
21 | #include "gdbtypes.h" | |
2c0b251b | 22 | #include "linux-tdep.h" |
6c95b8df PA |
23 | #include "auxv.h" |
24 | #include "target.h" | |
6432734d UW |
25 | #include "gdbthread.h" |
26 | #include "gdbcore.h" | |
27 | #include "regcache.h" | |
28 | #include "regset.h" | |
6c95b8df | 29 | #include "elf/common.h" |
6432734d | 30 | #include "elf-bfd.h" /* for elfcore_write_* */ |
a5ee0f0c | 31 | #include "inferior.h" |
3030c96e | 32 | #include "cli/cli-utils.h" |
451b7c33 TT |
33 | #include "arch-utils.h" |
34 | #include "gdb_obstack.h" | |
3030c96e UW |
35 | |
36 | #include <ctype.h> | |
4aa995e1 | 37 | |
06253dd3 JK |
38 | static struct gdbarch_data *linux_gdbarch_data_handle; |
39 | ||
40 | struct linux_gdbarch_data | |
41 | { | |
42 | struct type *siginfo_type; | |
43 | }; | |
44 | ||
45 | static void * | |
46 | init_linux_gdbarch_data (struct gdbarch *gdbarch) | |
47 | { | |
48 | return GDBARCH_OBSTACK_ZALLOC (gdbarch, struct linux_gdbarch_data); | |
49 | } | |
50 | ||
51 | static struct linux_gdbarch_data * | |
52 | get_linux_gdbarch_data (struct gdbarch *gdbarch) | |
53 | { | |
54 | return gdbarch_data (gdbarch, linux_gdbarch_data_handle); | |
55 | } | |
56 | ||
4aa995e1 PA |
57 | /* This function is suitable for architectures that don't |
58 | extend/override the standard siginfo structure. */ | |
59 | ||
60 | struct type * | |
61 | linux_get_siginfo_type (struct gdbarch *gdbarch) | |
62 | { | |
06253dd3 | 63 | struct linux_gdbarch_data *linux_gdbarch_data; |
4aa995e1 PA |
64 | struct type *int_type, *uint_type, *long_type, *void_ptr_type; |
65 | struct type *uid_type, *pid_type; | |
66 | struct type *sigval_type, *clock_type; | |
67 | struct type *siginfo_type, *sifields_type; | |
68 | struct type *type; | |
69 | ||
06253dd3 JK |
70 | linux_gdbarch_data = get_linux_gdbarch_data (gdbarch); |
71 | if (linux_gdbarch_data->siginfo_type != NULL) | |
72 | return linux_gdbarch_data->siginfo_type; | |
73 | ||
e9bb382b UW |
74 | int_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), |
75 | 0, "int"); | |
76 | uint_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
77 | 1, "unsigned int"); | |
78 | long_type = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
79 | 0, "long"); | |
4aa995e1 PA |
80 | void_ptr_type = lookup_pointer_type (builtin_type (gdbarch)->builtin_void); |
81 | ||
82 | /* sival_t */ | |
e9bb382b | 83 | sigval_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION); |
4aa995e1 PA |
84 | TYPE_NAME (sigval_type) = xstrdup ("sigval_t"); |
85 | append_composite_type_field (sigval_type, "sival_int", int_type); | |
86 | append_composite_type_field (sigval_type, "sival_ptr", void_ptr_type); | |
87 | ||
88 | /* __pid_t */ | |
e3aa49af MS |
89 | pid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, |
90 | TYPE_LENGTH (int_type), "__pid_t"); | |
4aa995e1 | 91 | TYPE_TARGET_TYPE (pid_type) = int_type; |
e9bb382b | 92 | TYPE_TARGET_STUB (pid_type) = 1; |
4aa995e1 PA |
93 | |
94 | /* __uid_t */ | |
e3aa49af MS |
95 | uid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, |
96 | TYPE_LENGTH (uint_type), "__uid_t"); | |
4aa995e1 | 97 | TYPE_TARGET_TYPE (uid_type) = uint_type; |
e9bb382b | 98 | TYPE_TARGET_STUB (uid_type) = 1; |
4aa995e1 PA |
99 | |
100 | /* __clock_t */ | |
e3aa49af MS |
101 | clock_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, |
102 | TYPE_LENGTH (long_type), "__clock_t"); | |
4aa995e1 | 103 | TYPE_TARGET_TYPE (clock_type) = long_type; |
e9bb382b | 104 | TYPE_TARGET_STUB (clock_type) = 1; |
4aa995e1 PA |
105 | |
106 | /* _sifields */ | |
e9bb382b | 107 | sifields_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION); |
4aa995e1 PA |
108 | |
109 | { | |
110 | const int si_max_size = 128; | |
111 | int si_pad_size; | |
112 | int size_of_int = gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT; | |
113 | ||
114 | /* _pad */ | |
115 | if (gdbarch_ptr_bit (gdbarch) == 64) | |
116 | si_pad_size = (si_max_size / size_of_int) - 4; | |
117 | else | |
118 | si_pad_size = (si_max_size / size_of_int) - 3; | |
119 | append_composite_type_field (sifields_type, "_pad", | |
120 | init_vector_type (int_type, si_pad_size)); | |
121 | } | |
122 | ||
123 | /* _kill */ | |
e9bb382b | 124 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
125 | append_composite_type_field (type, "si_pid", pid_type); |
126 | append_composite_type_field (type, "si_uid", uid_type); | |
127 | append_composite_type_field (sifields_type, "_kill", type); | |
128 | ||
129 | /* _timer */ | |
e9bb382b | 130 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
131 | append_composite_type_field (type, "si_tid", int_type); |
132 | append_composite_type_field (type, "si_overrun", int_type); | |
133 | append_composite_type_field (type, "si_sigval", sigval_type); | |
134 | append_composite_type_field (sifields_type, "_timer", type); | |
135 | ||
136 | /* _rt */ | |
e9bb382b | 137 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
138 | append_composite_type_field (type, "si_pid", pid_type); |
139 | append_composite_type_field (type, "si_uid", uid_type); | |
140 | append_composite_type_field (type, "si_sigval", sigval_type); | |
141 | append_composite_type_field (sifields_type, "_rt", type); | |
142 | ||
143 | /* _sigchld */ | |
e9bb382b | 144 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
145 | append_composite_type_field (type, "si_pid", pid_type); |
146 | append_composite_type_field (type, "si_uid", uid_type); | |
147 | append_composite_type_field (type, "si_status", int_type); | |
148 | append_composite_type_field (type, "si_utime", clock_type); | |
149 | append_composite_type_field (type, "si_stime", clock_type); | |
150 | append_composite_type_field (sifields_type, "_sigchld", type); | |
151 | ||
152 | /* _sigfault */ | |
e9bb382b | 153 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
154 | append_composite_type_field (type, "si_addr", void_ptr_type); |
155 | append_composite_type_field (sifields_type, "_sigfault", type); | |
156 | ||
157 | /* _sigpoll */ | |
e9bb382b | 158 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
159 | append_composite_type_field (type, "si_band", long_type); |
160 | append_composite_type_field (type, "si_fd", int_type); | |
161 | append_composite_type_field (sifields_type, "_sigpoll", type); | |
162 | ||
163 | /* struct siginfo */ | |
e9bb382b | 164 | siginfo_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
165 | TYPE_NAME (siginfo_type) = xstrdup ("siginfo"); |
166 | append_composite_type_field (siginfo_type, "si_signo", int_type); | |
167 | append_composite_type_field (siginfo_type, "si_errno", int_type); | |
168 | append_composite_type_field (siginfo_type, "si_code", int_type); | |
169 | append_composite_type_field_aligned (siginfo_type, | |
170 | "_sifields", sifields_type, | |
171 | TYPE_LENGTH (long_type)); | |
172 | ||
06253dd3 JK |
173 | linux_gdbarch_data->siginfo_type = siginfo_type; |
174 | ||
4aa995e1 PA |
175 | return siginfo_type; |
176 | } | |
6b3ae818 | 177 | |
33fbcbee PA |
178 | static int |
179 | linux_has_shared_address_space (struct gdbarch *gdbarch) | |
6c95b8df PA |
180 | { |
181 | /* Determine whether we are running on uClinux or normal Linux | |
182 | kernel. */ | |
183 | CORE_ADDR dummy; | |
184 | int target_is_uclinux; | |
185 | ||
186 | target_is_uclinux | |
187 | = (target_auxv_search (¤t_target, AT_NULL, &dummy) > 0 | |
188 | && target_auxv_search (¤t_target, AT_PAGESZ, &dummy) == 0); | |
189 | ||
190 | return target_is_uclinux; | |
191 | } | |
a5ee0f0c PA |
192 | |
193 | /* This is how we want PTIDs from core files to be printed. */ | |
194 | ||
195 | static char * | |
196 | linux_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid) | |
197 | { | |
198 | static char buf[80]; | |
199 | ||
200 | if (ptid_get_lwp (ptid) != 0) | |
201 | { | |
202 | snprintf (buf, sizeof (buf), "LWP %ld", ptid_get_lwp (ptid)); | |
203 | return buf; | |
204 | } | |
205 | ||
206 | return normal_pid_to_str (ptid); | |
207 | } | |
208 | ||
3030c96e UW |
209 | /* Service function for corefiles and info proc. */ |
210 | ||
211 | static void | |
212 | read_mapping (const char *line, | |
213 | ULONGEST *addr, ULONGEST *endaddr, | |
214 | const char **permissions, size_t *permissions_len, | |
215 | ULONGEST *offset, | |
216 | const char **device, size_t *device_len, | |
217 | ULONGEST *inode, | |
218 | const char **filename) | |
219 | { | |
220 | const char *p = line; | |
221 | ||
222 | *addr = strtoulst (p, &p, 16); | |
223 | if (*p == '-') | |
224 | p++; | |
225 | *endaddr = strtoulst (p, &p, 16); | |
226 | ||
227 | while (*p && isspace (*p)) | |
228 | p++; | |
229 | *permissions = p; | |
230 | while (*p && !isspace (*p)) | |
231 | p++; | |
232 | *permissions_len = p - *permissions; | |
233 | ||
234 | *offset = strtoulst (p, &p, 16); | |
235 | ||
236 | while (*p && isspace (*p)) | |
237 | p++; | |
238 | *device = p; | |
239 | while (*p && !isspace (*p)) | |
240 | p++; | |
241 | *device_len = p - *device; | |
242 | ||
243 | *inode = strtoulst (p, &p, 10); | |
244 | ||
245 | while (*p && isspace (*p)) | |
246 | p++; | |
247 | *filename = p; | |
248 | } | |
249 | ||
250 | /* Implement the "info proc" command. */ | |
251 | ||
252 | static void | |
253 | linux_info_proc (struct gdbarch *gdbarch, char *args, | |
254 | enum info_proc_what what) | |
255 | { | |
256 | /* A long is used for pid instead of an int to avoid a loss of precision | |
257 | compiler warning from the output of strtoul. */ | |
258 | long pid; | |
259 | int cmdline_f = (what == IP_MINIMAL || what == IP_CMDLINE || what == IP_ALL); | |
260 | int cwd_f = (what == IP_MINIMAL || what == IP_CWD || what == IP_ALL); | |
261 | int exe_f = (what == IP_MINIMAL || what == IP_EXE || what == IP_ALL); | |
262 | int mappings_f = (what == IP_MAPPINGS || what == IP_ALL); | |
263 | int status_f = (what == IP_STATUS || what == IP_ALL); | |
264 | int stat_f = (what == IP_STAT || what == IP_ALL); | |
265 | char filename[100]; | |
266 | gdb_byte *data; | |
267 | int target_errno; | |
268 | ||
269 | if (args && isdigit (args[0])) | |
270 | pid = strtoul (args, &args, 10); | |
271 | else | |
272 | { | |
273 | if (!target_has_execution) | |
274 | error (_("No current process: you must name one.")); | |
275 | if (current_inferior ()->fake_pid_p) | |
276 | error (_("Can't determine the current process's PID: you must name one.")); | |
277 | ||
278 | pid = current_inferior ()->pid; | |
279 | } | |
280 | ||
281 | args = skip_spaces (args); | |
282 | if (args && args[0]) | |
283 | error (_("Too many parameters: %s"), args); | |
284 | ||
285 | printf_filtered (_("process %ld\n"), pid); | |
286 | if (cmdline_f) | |
287 | { | |
288 | xsnprintf (filename, sizeof filename, "/proc/%ld/cmdline", pid); | |
289 | data = target_fileio_read_stralloc (filename); | |
290 | if (data) | |
291 | { | |
292 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
293 | printf_filtered ("cmdline = '%s'\n", data); | |
294 | do_cleanups (cleanup); | |
295 | } | |
296 | else | |
297 | warning (_("unable to open /proc file '%s'"), filename); | |
298 | } | |
299 | if (cwd_f) | |
300 | { | |
301 | xsnprintf (filename, sizeof filename, "/proc/%ld/cwd", pid); | |
302 | data = target_fileio_readlink (filename, &target_errno); | |
303 | if (data) | |
304 | { | |
305 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
306 | printf_filtered ("cwd = '%s'\n", data); | |
307 | do_cleanups (cleanup); | |
308 | } | |
309 | else | |
310 | warning (_("unable to read link '%s'"), filename); | |
311 | } | |
312 | if (exe_f) | |
313 | { | |
314 | xsnprintf (filename, sizeof filename, "/proc/%ld/exe", pid); | |
315 | data = target_fileio_readlink (filename, &target_errno); | |
316 | if (data) | |
317 | { | |
318 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
319 | printf_filtered ("exe = '%s'\n", data); | |
320 | do_cleanups (cleanup); | |
321 | } | |
322 | else | |
323 | warning (_("unable to read link '%s'"), filename); | |
324 | } | |
325 | if (mappings_f) | |
326 | { | |
327 | xsnprintf (filename, sizeof filename, "/proc/%ld/maps", pid); | |
328 | data = target_fileio_read_stralloc (filename); | |
329 | if (data) | |
330 | { | |
331 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
332 | char *line; | |
333 | ||
334 | printf_filtered (_("Mapped address spaces:\n\n")); | |
335 | if (gdbarch_addr_bit (gdbarch) == 32) | |
336 | { | |
337 | printf_filtered ("\t%10s %10s %10s %10s %s\n", | |
338 | "Start Addr", | |
339 | " End Addr", | |
340 | " Size", " Offset", "objfile"); | |
341 | } | |
342 | else | |
343 | { | |
344 | printf_filtered (" %18s %18s %10s %10s %s\n", | |
345 | "Start Addr", | |
346 | " End Addr", | |
347 | " Size", " Offset", "objfile"); | |
348 | } | |
349 | ||
350 | for (line = strtok (data, "\n"); line; line = strtok (NULL, "\n")) | |
351 | { | |
352 | ULONGEST addr, endaddr, offset, inode; | |
353 | const char *permissions, *device, *filename; | |
354 | size_t permissions_len, device_len; | |
355 | ||
356 | read_mapping (line, &addr, &endaddr, | |
357 | &permissions, &permissions_len, | |
358 | &offset, &device, &device_len, | |
359 | &inode, &filename); | |
360 | ||
361 | if (gdbarch_addr_bit (gdbarch) == 32) | |
362 | { | |
363 | printf_filtered ("\t%10s %10s %10s %10s %s\n", | |
364 | paddress (gdbarch, addr), | |
365 | paddress (gdbarch, endaddr), | |
366 | hex_string (endaddr - addr), | |
367 | hex_string (offset), | |
368 | *filename? filename : ""); | |
369 | } | |
370 | else | |
371 | { | |
372 | printf_filtered (" %18s %18s %10s %10s %s\n", | |
373 | paddress (gdbarch, addr), | |
374 | paddress (gdbarch, endaddr), | |
375 | hex_string (endaddr - addr), | |
376 | hex_string (offset), | |
377 | *filename? filename : ""); | |
378 | } | |
379 | } | |
380 | ||
381 | do_cleanups (cleanup); | |
382 | } | |
383 | else | |
384 | warning (_("unable to open /proc file '%s'"), filename); | |
385 | } | |
386 | if (status_f) | |
387 | { | |
388 | xsnprintf (filename, sizeof filename, "/proc/%ld/status", pid); | |
389 | data = target_fileio_read_stralloc (filename); | |
390 | if (data) | |
391 | { | |
392 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
393 | puts_filtered (data); | |
394 | do_cleanups (cleanup); | |
395 | } | |
396 | else | |
397 | warning (_("unable to open /proc file '%s'"), filename); | |
398 | } | |
399 | if (stat_f) | |
400 | { | |
401 | xsnprintf (filename, sizeof filename, "/proc/%ld/stat", pid); | |
402 | data = target_fileio_read_stralloc (filename); | |
403 | if (data) | |
404 | { | |
405 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
406 | const char *p = data; | |
3030c96e UW |
407 | |
408 | printf_filtered (_("Process: %s\n"), | |
409 | pulongest (strtoulst (p, &p, 10))); | |
410 | ||
411 | while (*p && isspace (*p)) | |
412 | p++; | |
a71b5a38 | 413 | if (*p == '(') |
3030c96e | 414 | { |
a71b5a38 UW |
415 | const char *ep = strchr (p, ')'); |
416 | if (ep != NULL) | |
417 | { | |
418 | printf_filtered ("Exec file: %.*s\n", | |
419 | (int) (ep - p - 1), p + 1); | |
420 | p = ep + 1; | |
421 | } | |
3030c96e UW |
422 | } |
423 | ||
424 | while (*p && isspace (*p)) | |
425 | p++; | |
426 | if (*p) | |
427 | printf_filtered (_("State: %c\n"), *p++); | |
428 | ||
429 | if (*p) | |
430 | printf_filtered (_("Parent process: %s\n"), | |
431 | pulongest (strtoulst (p, &p, 10))); | |
432 | if (*p) | |
433 | printf_filtered (_("Process group: %s\n"), | |
434 | pulongest (strtoulst (p, &p, 10))); | |
435 | if (*p) | |
436 | printf_filtered (_("Session id: %s\n"), | |
437 | pulongest (strtoulst (p, &p, 10))); | |
438 | if (*p) | |
439 | printf_filtered (_("TTY: %s\n"), | |
440 | pulongest (strtoulst (p, &p, 10))); | |
441 | if (*p) | |
442 | printf_filtered (_("TTY owner process group: %s\n"), | |
443 | pulongest (strtoulst (p, &p, 10))); | |
444 | ||
445 | if (*p) | |
446 | printf_filtered (_("Flags: %s\n"), | |
447 | hex_string (strtoulst (p, &p, 10))); | |
448 | if (*p) | |
449 | printf_filtered (_("Minor faults (no memory page): %s\n"), | |
450 | pulongest (strtoulst (p, &p, 10))); | |
451 | if (*p) | |
452 | printf_filtered (_("Minor faults, children: %s\n"), | |
453 | pulongest (strtoulst (p, &p, 10))); | |
454 | if (*p) | |
455 | printf_filtered (_("Major faults (memory page faults): %s\n"), | |
456 | pulongest (strtoulst (p, &p, 10))); | |
457 | if (*p) | |
458 | printf_filtered (_("Major faults, children: %s\n"), | |
459 | pulongest (strtoulst (p, &p, 10))); | |
460 | if (*p) | |
461 | printf_filtered (_("utime: %s\n"), | |
462 | pulongest (strtoulst (p, &p, 10))); | |
463 | if (*p) | |
464 | printf_filtered (_("stime: %s\n"), | |
465 | pulongest (strtoulst (p, &p, 10))); | |
466 | if (*p) | |
467 | printf_filtered (_("utime, children: %s\n"), | |
468 | pulongest (strtoulst (p, &p, 10))); | |
469 | if (*p) | |
470 | printf_filtered (_("stime, children: %s\n"), | |
471 | pulongest (strtoulst (p, &p, 10))); | |
472 | if (*p) | |
473 | printf_filtered (_("jiffies remaining in current " | |
474 | "time slice: %s\n"), | |
475 | pulongest (strtoulst (p, &p, 10))); | |
476 | if (*p) | |
477 | printf_filtered (_("'nice' value: %s\n"), | |
478 | pulongest (strtoulst (p, &p, 10))); | |
479 | if (*p) | |
480 | printf_filtered (_("jiffies until next timeout: %s\n"), | |
481 | pulongest (strtoulst (p, &p, 10))); | |
482 | if (*p) | |
483 | printf_filtered (_("jiffies until next SIGALRM: %s\n"), | |
484 | pulongest (strtoulst (p, &p, 10))); | |
485 | if (*p) | |
486 | printf_filtered (_("start time (jiffies since " | |
487 | "system boot): %s\n"), | |
488 | pulongest (strtoulst (p, &p, 10))); | |
489 | if (*p) | |
490 | printf_filtered (_("Virtual memory size: %s\n"), | |
491 | pulongest (strtoulst (p, &p, 10))); | |
492 | if (*p) | |
493 | printf_filtered (_("Resident set size: %s\n"), | |
494 | pulongest (strtoulst (p, &p, 10))); | |
495 | if (*p) | |
496 | printf_filtered (_("rlim: %s\n"), | |
497 | pulongest (strtoulst (p, &p, 10))); | |
498 | if (*p) | |
499 | printf_filtered (_("Start of text: %s\n"), | |
500 | hex_string (strtoulst (p, &p, 10))); | |
501 | if (*p) | |
502 | printf_filtered (_("End of text: %s\n"), | |
503 | hex_string (strtoulst (p, &p, 10))); | |
504 | if (*p) | |
505 | printf_filtered (_("Start of stack: %s\n"), | |
506 | hex_string (strtoulst (p, &p, 10))); | |
507 | #if 0 /* Don't know how architecture-dependent the rest is... | |
508 | Anyway the signal bitmap info is available from "status". */ | |
509 | if (*p) | |
510 | printf_filtered (_("Kernel stack pointer: %s\n"), | |
511 | hex_string (strtoulst (p, &p, 10))); | |
512 | if (*p) | |
513 | printf_filtered (_("Kernel instr pointer: %s\n"), | |
514 | hex_string (strtoulst (p, &p, 10))); | |
515 | if (*p) | |
516 | printf_filtered (_("Pending signals bitmap: %s\n"), | |
517 | hex_string (strtoulst (p, &p, 10))); | |
518 | if (*p) | |
519 | printf_filtered (_("Blocked signals bitmap: %s\n"), | |
520 | hex_string (strtoulst (p, &p, 10))); | |
521 | if (*p) | |
522 | printf_filtered (_("Ignored signals bitmap: %s\n"), | |
523 | hex_string (strtoulst (p, &p, 10))); | |
524 | if (*p) | |
525 | printf_filtered (_("Catched signals bitmap: %s\n"), | |
526 | hex_string (strtoulst (p, &p, 10))); | |
527 | if (*p) | |
528 | printf_filtered (_("wchan (system call): %s\n"), | |
529 | hex_string (strtoulst (p, &p, 10))); | |
530 | #endif | |
531 | do_cleanups (cleanup); | |
532 | } | |
533 | else | |
534 | warning (_("unable to open /proc file '%s'"), filename); | |
535 | } | |
536 | } | |
537 | ||
451b7c33 TT |
538 | /* Implement "info proc mappings" for a corefile. */ |
539 | ||
540 | static void | |
541 | linux_core_info_proc_mappings (struct gdbarch *gdbarch, char *args) | |
542 | { | |
543 | asection *section; | |
544 | ULONGEST count, page_size; | |
545 | unsigned char *descdata, *filenames, *descend, *contents; | |
546 | size_t note_size; | |
547 | unsigned int addr_size_bits, addr_size; | |
548 | struct cleanup *cleanup; | |
549 | struct gdbarch *core_gdbarch = gdbarch_from_bfd (core_bfd); | |
550 | /* We assume this for reading 64-bit core files. */ | |
551 | gdb_static_assert (sizeof (ULONGEST) >= 8); | |
552 | ||
553 | section = bfd_get_section_by_name (core_bfd, ".note.linuxcore.file"); | |
554 | if (section == NULL) | |
555 | { | |
556 | warning (_("unable to find mappings in core file")); | |
557 | return; | |
558 | } | |
559 | ||
560 | addr_size_bits = gdbarch_addr_bit (core_gdbarch); | |
561 | addr_size = addr_size_bits / 8; | |
562 | note_size = bfd_get_section_size (section); | |
563 | ||
564 | if (note_size < 2 * addr_size) | |
565 | error (_("malformed core note - too short for header")); | |
566 | ||
567 | contents = xmalloc (note_size); | |
568 | cleanup = make_cleanup (xfree, contents); | |
569 | if (!bfd_get_section_contents (core_bfd, section, contents, 0, note_size)) | |
570 | error (_("could not get core note contents")); | |
571 | ||
572 | descdata = contents; | |
573 | descend = descdata + note_size; | |
574 | ||
575 | if (descdata[note_size - 1] != '\0') | |
576 | error (_("malformed note - does not end with \\0")); | |
577 | ||
578 | count = bfd_get (addr_size_bits, core_bfd, descdata); | |
579 | descdata += addr_size; | |
580 | ||
581 | page_size = bfd_get (addr_size_bits, core_bfd, descdata); | |
582 | descdata += addr_size; | |
583 | ||
584 | if (note_size < 2 * addr_size + count * 3 * addr_size) | |
585 | error (_("malformed note - too short for supplied file count")); | |
586 | ||
587 | printf_filtered (_("Mapped address spaces:\n\n")); | |
588 | if (gdbarch_addr_bit (gdbarch) == 32) | |
589 | { | |
590 | printf_filtered ("\t%10s %10s %10s %10s %s\n", | |
591 | "Start Addr", | |
592 | " End Addr", | |
593 | " Size", " Offset", "objfile"); | |
594 | } | |
595 | else | |
596 | { | |
597 | printf_filtered (" %18s %18s %10s %10s %s\n", | |
598 | "Start Addr", | |
599 | " End Addr", | |
600 | " Size", " Offset", "objfile"); | |
601 | } | |
602 | ||
603 | filenames = descdata + count * 3 * addr_size; | |
604 | while (--count > 0) | |
605 | { | |
606 | ULONGEST start, end, file_ofs; | |
607 | ||
608 | if (filenames == descend) | |
609 | error (_("malformed note - filenames end too early")); | |
610 | ||
611 | start = bfd_get (addr_size_bits, core_bfd, descdata); | |
612 | descdata += addr_size; | |
613 | end = bfd_get (addr_size_bits, core_bfd, descdata); | |
614 | descdata += addr_size; | |
615 | file_ofs = bfd_get (addr_size_bits, core_bfd, descdata); | |
616 | descdata += addr_size; | |
617 | ||
618 | file_ofs *= page_size; | |
619 | ||
620 | if (gdbarch_addr_bit (gdbarch) == 32) | |
621 | printf_filtered ("\t%10s %10s %10s %10s %s\n", | |
622 | paddress (gdbarch, start), | |
623 | paddress (gdbarch, end), | |
624 | hex_string (end - start), | |
625 | hex_string (file_ofs), | |
626 | filenames); | |
627 | else | |
628 | printf_filtered (" %18s %18s %10s %10s %s\n", | |
629 | paddress (gdbarch, start), | |
630 | paddress (gdbarch, end), | |
631 | hex_string (end - start), | |
632 | hex_string (file_ofs), | |
633 | filenames); | |
634 | ||
635 | filenames += 1 + strlen ((char *) filenames); | |
636 | } | |
637 | ||
638 | do_cleanups (cleanup); | |
639 | } | |
640 | ||
641 | /* Implement "info proc" for a corefile. */ | |
642 | ||
643 | static void | |
644 | linux_core_info_proc (struct gdbarch *gdbarch, char *args, | |
645 | enum info_proc_what what) | |
646 | { | |
647 | int exe_f = (what == IP_MINIMAL || what == IP_EXE || what == IP_ALL); | |
648 | int mappings_f = (what == IP_MAPPINGS || what == IP_ALL); | |
649 | ||
650 | if (exe_f) | |
651 | { | |
652 | const char *exe; | |
653 | ||
654 | exe = bfd_core_file_failing_command (core_bfd); | |
655 | if (exe != NULL) | |
656 | printf_filtered ("exe = '%s'\n", exe); | |
657 | else | |
658 | warning (_("unable to find command name in core file")); | |
659 | } | |
660 | ||
661 | if (mappings_f) | |
662 | linux_core_info_proc_mappings (gdbarch, args); | |
663 | ||
664 | if (!exe_f && !mappings_f) | |
665 | error (_("unable to handle request")); | |
666 | } | |
667 | ||
668 | typedef int linux_find_memory_region_ftype (ULONGEST vaddr, ULONGEST size, | |
669 | ULONGEST offset, ULONGEST inode, | |
670 | int read, int write, | |
671 | int exec, int modified, | |
672 | const char *filename, | |
673 | void *data); | |
674 | ||
35c2fab7 UW |
675 | /* List memory regions in the inferior for a corefile. */ |
676 | ||
677 | static int | |
451b7c33 TT |
678 | linux_find_memory_regions_full (struct gdbarch *gdbarch, |
679 | linux_find_memory_region_ftype *func, | |
680 | void *obfd) | |
35c2fab7 UW |
681 | { |
682 | char filename[100]; | |
683 | gdb_byte *data; | |
684 | ||
685 | /* We need to know the real target PID to access /proc. */ | |
686 | if (current_inferior ()->fake_pid_p) | |
687 | return 1; | |
688 | ||
689 | xsnprintf (filename, sizeof filename, | |
4f69f4c2 | 690 | "/proc/%d/smaps", current_inferior ()->pid); |
35c2fab7 | 691 | data = target_fileio_read_stralloc (filename); |
4f69f4c2 JK |
692 | if (data == NULL) |
693 | { | |
694 | /* Older Linux kernels did not support /proc/PID/smaps. */ | |
695 | xsnprintf (filename, sizeof filename, | |
696 | "/proc/%d/maps", current_inferior ()->pid); | |
697 | data = target_fileio_read_stralloc (filename); | |
698 | } | |
35c2fab7 UW |
699 | if (data) |
700 | { | |
701 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
702 | char *line; | |
703 | ||
4f69f4c2 JK |
704 | line = strtok (data, "\n"); |
705 | while (line) | |
35c2fab7 UW |
706 | { |
707 | ULONGEST addr, endaddr, offset, inode; | |
708 | const char *permissions, *device, *filename; | |
709 | size_t permissions_len, device_len; | |
710 | int read, write, exec; | |
4f69f4c2 | 711 | int modified = 0, has_anonymous = 0; |
35c2fab7 UW |
712 | |
713 | read_mapping (line, &addr, &endaddr, &permissions, &permissions_len, | |
714 | &offset, &device, &device_len, &inode, &filename); | |
715 | ||
716 | /* Decode permissions. */ | |
717 | read = (memchr (permissions, 'r', permissions_len) != 0); | |
718 | write = (memchr (permissions, 'w', permissions_len) != 0); | |
719 | exec = (memchr (permissions, 'x', permissions_len) != 0); | |
720 | ||
4f69f4c2 JK |
721 | /* Try to detect if region was modified by parsing smaps counters. */ |
722 | for (line = strtok (NULL, "\n"); | |
723 | line && line[0] >= 'A' && line[0] <= 'Z'; | |
724 | line = strtok (NULL, "\n")) | |
725 | { | |
726 | char keyword[64 + 1]; | |
727 | unsigned long number; | |
728 | ||
729 | if (sscanf (line, "%64s%lu kB\n", keyword, &number) != 2) | |
730 | { | |
731 | warning (_("Error parsing {s,}maps file '%s'"), filename); | |
732 | break; | |
733 | } | |
734 | if (strcmp (keyword, "Anonymous:") == 0) | |
735 | has_anonymous = 1; | |
736 | if (number != 0 && (strcmp (keyword, "Shared_Dirty:") == 0 | |
737 | || strcmp (keyword, "Private_Dirty:") == 0 | |
738 | || strcmp (keyword, "Swap:") == 0 | |
739 | || strcmp (keyword, "Anonymous:") == 0)) | |
740 | modified = 1; | |
741 | } | |
742 | ||
743 | /* Older Linux kernels did not support the "Anonymous:" counter. | |
744 | If it is missing, we can't be sure - dump all the pages. */ | |
745 | if (!has_anonymous) | |
746 | modified = 1; | |
747 | ||
35c2fab7 | 748 | /* Invoke the callback function to create the corefile segment. */ |
451b7c33 TT |
749 | func (addr, endaddr - addr, offset, inode, |
750 | read, write, exec, modified, filename, obfd); | |
35c2fab7 UW |
751 | } |
752 | ||
753 | do_cleanups (cleanup); | |
754 | return 0; | |
755 | } | |
756 | ||
757 | return 1; | |
758 | } | |
759 | ||
451b7c33 TT |
760 | /* A structure for passing information through |
761 | linux_find_memory_regions_full. */ | |
762 | ||
763 | struct linux_find_memory_regions_data | |
764 | { | |
765 | /* The original callback. */ | |
766 | ||
767 | find_memory_region_ftype func; | |
768 | ||
769 | /* The original datum. */ | |
770 | ||
771 | void *obfd; | |
772 | }; | |
773 | ||
774 | /* A callback for linux_find_memory_regions that converts between the | |
775 | "full"-style callback and find_memory_region_ftype. */ | |
776 | ||
777 | static int | |
778 | linux_find_memory_regions_thunk (ULONGEST vaddr, ULONGEST size, | |
779 | ULONGEST offset, ULONGEST inode, | |
780 | int read, int write, int exec, int modified, | |
781 | const char *filename, void *arg) | |
782 | { | |
783 | struct linux_find_memory_regions_data *data = arg; | |
784 | ||
785 | return data->func (vaddr, size, read, write, exec, modified, data->obfd); | |
786 | } | |
787 | ||
788 | /* A variant of linux_find_memory_regions_full that is suitable as the | |
789 | gdbarch find_memory_regions method. */ | |
790 | ||
791 | static int | |
792 | linux_find_memory_regions (struct gdbarch *gdbarch, | |
793 | find_memory_region_ftype func, void *obfd) | |
794 | { | |
795 | struct linux_find_memory_regions_data data; | |
796 | ||
797 | data.func = func; | |
798 | data.obfd = obfd; | |
799 | ||
800 | return linux_find_memory_regions_full (gdbarch, | |
801 | linux_find_memory_regions_thunk, | |
802 | &data); | |
803 | } | |
804 | ||
6432734d UW |
805 | /* Determine which signal stopped execution. */ |
806 | ||
807 | static int | |
808 | find_signalled_thread (struct thread_info *info, void *data) | |
809 | { | |
a493e3e2 | 810 | if (info->suspend.stop_signal != GDB_SIGNAL_0 |
6432734d UW |
811 | && ptid_get_pid (info->ptid) == ptid_get_pid (inferior_ptid)) |
812 | return 1; | |
813 | ||
814 | return 0; | |
815 | } | |
816 | ||
2ea28649 | 817 | static enum gdb_signal |
6432734d UW |
818 | find_stop_signal (void) |
819 | { | |
820 | struct thread_info *info = | |
821 | iterate_over_threads (find_signalled_thread, NULL); | |
822 | ||
823 | if (info) | |
824 | return info->suspend.stop_signal; | |
825 | else | |
a493e3e2 | 826 | return GDB_SIGNAL_0; |
6432734d UW |
827 | } |
828 | ||
829 | /* Generate corefile notes for SPU contexts. */ | |
830 | ||
831 | static char * | |
832 | linux_spu_make_corefile_notes (bfd *obfd, char *note_data, int *note_size) | |
833 | { | |
834 | static const char *spu_files[] = | |
835 | { | |
836 | "object-id", | |
837 | "mem", | |
838 | "regs", | |
839 | "fpcr", | |
840 | "lslr", | |
841 | "decr", | |
842 | "decr_status", | |
843 | "signal1", | |
844 | "signal1_type", | |
845 | "signal2", | |
846 | "signal2_type", | |
847 | "event_mask", | |
848 | "event_status", | |
849 | "mbox_info", | |
850 | "ibox_info", | |
851 | "wbox_info", | |
852 | "dma_info", | |
853 | "proxydma_info", | |
854 | }; | |
855 | ||
f5656ead | 856 | enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ()); |
6432734d UW |
857 | gdb_byte *spu_ids; |
858 | LONGEST i, j, size; | |
859 | ||
860 | /* Determine list of SPU ids. */ | |
861 | size = target_read_alloc (¤t_target, TARGET_OBJECT_SPU, | |
862 | NULL, &spu_ids); | |
863 | ||
864 | /* Generate corefile notes for each SPU file. */ | |
865 | for (i = 0; i < size; i += 4) | |
866 | { | |
867 | int fd = extract_unsigned_integer (spu_ids + i, 4, byte_order); | |
868 | ||
869 | for (j = 0; j < sizeof (spu_files) / sizeof (spu_files[0]); j++) | |
870 | { | |
871 | char annex[32], note_name[32]; | |
872 | gdb_byte *spu_data; | |
873 | LONGEST spu_len; | |
874 | ||
875 | xsnprintf (annex, sizeof annex, "%d/%s", fd, spu_files[j]); | |
876 | spu_len = target_read_alloc (¤t_target, TARGET_OBJECT_SPU, | |
877 | annex, &spu_data); | |
878 | if (spu_len > 0) | |
879 | { | |
880 | xsnprintf (note_name, sizeof note_name, "SPU/%s", annex); | |
881 | note_data = elfcore_write_note (obfd, note_data, note_size, | |
882 | note_name, NT_SPU, | |
883 | spu_data, spu_len); | |
884 | xfree (spu_data); | |
885 | ||
886 | if (!note_data) | |
887 | { | |
888 | xfree (spu_ids); | |
889 | return NULL; | |
890 | } | |
891 | } | |
892 | } | |
893 | } | |
894 | ||
895 | if (size > 0) | |
896 | xfree (spu_ids); | |
897 | ||
898 | return note_data; | |
899 | } | |
900 | ||
451b7c33 TT |
901 | /* This is used to pass information from |
902 | linux_make_mappings_corefile_notes through | |
903 | linux_find_memory_regions_full. */ | |
904 | ||
905 | struct linux_make_mappings_data | |
906 | { | |
907 | /* Number of files mapped. */ | |
908 | ULONGEST file_count; | |
909 | ||
910 | /* The obstack for the main part of the data. */ | |
911 | struct obstack *data_obstack; | |
912 | ||
913 | /* The filename obstack. */ | |
914 | struct obstack *filename_obstack; | |
915 | ||
916 | /* The architecture's "long" type. */ | |
917 | struct type *long_type; | |
918 | }; | |
919 | ||
920 | static linux_find_memory_region_ftype linux_make_mappings_callback; | |
921 | ||
922 | /* A callback for linux_find_memory_regions_full that updates the | |
923 | mappings data for linux_make_mappings_corefile_notes. */ | |
924 | ||
925 | static int | |
926 | linux_make_mappings_callback (ULONGEST vaddr, ULONGEST size, | |
927 | ULONGEST offset, ULONGEST inode, | |
928 | int read, int write, int exec, int modified, | |
929 | const char *filename, void *data) | |
930 | { | |
931 | struct linux_make_mappings_data *map_data = data; | |
932 | gdb_byte buf[sizeof (ULONGEST)]; | |
933 | ||
934 | if (*filename == '\0' || inode == 0) | |
935 | return 0; | |
936 | ||
937 | ++map_data->file_count; | |
938 | ||
939 | pack_long (buf, map_data->long_type, vaddr); | |
940 | obstack_grow (map_data->data_obstack, buf, TYPE_LENGTH (map_data->long_type)); | |
941 | pack_long (buf, map_data->long_type, vaddr + size); | |
942 | obstack_grow (map_data->data_obstack, buf, TYPE_LENGTH (map_data->long_type)); | |
943 | pack_long (buf, map_data->long_type, offset); | |
944 | obstack_grow (map_data->data_obstack, buf, TYPE_LENGTH (map_data->long_type)); | |
945 | ||
946 | obstack_grow_str0 (map_data->filename_obstack, filename); | |
947 | ||
948 | return 0; | |
949 | } | |
950 | ||
951 | /* Write the file mapping data to the core file, if possible. OBFD is | |
952 | the output BFD. NOTE_DATA is the current note data, and NOTE_SIZE | |
953 | is a pointer to the note size. Returns the new NOTE_DATA and | |
954 | updates NOTE_SIZE. */ | |
955 | ||
956 | static char * | |
957 | linux_make_mappings_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, | |
958 | char *note_data, int *note_size) | |
959 | { | |
960 | struct cleanup *cleanup; | |
961 | struct obstack data_obstack, filename_obstack; | |
962 | struct linux_make_mappings_data mapping_data; | |
963 | struct type *long_type | |
964 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), 0, "long"); | |
965 | gdb_byte buf[sizeof (ULONGEST)]; | |
966 | ||
967 | obstack_init (&data_obstack); | |
968 | cleanup = make_cleanup_obstack_free (&data_obstack); | |
969 | obstack_init (&filename_obstack); | |
970 | make_cleanup_obstack_free (&filename_obstack); | |
971 | ||
972 | mapping_data.file_count = 0; | |
973 | mapping_data.data_obstack = &data_obstack; | |
974 | mapping_data.filename_obstack = &filename_obstack; | |
975 | mapping_data.long_type = long_type; | |
976 | ||
977 | /* Reserve space for the count. */ | |
978 | obstack_blank (&data_obstack, TYPE_LENGTH (long_type)); | |
979 | /* We always write the page size as 1 since we have no good way to | |
980 | determine the correct value. */ | |
981 | pack_long (buf, long_type, 1); | |
982 | obstack_grow (&data_obstack, buf, TYPE_LENGTH (long_type)); | |
983 | ||
984 | linux_find_memory_regions_full (gdbarch, linux_make_mappings_callback, | |
985 | &mapping_data); | |
986 | ||
987 | if (mapping_data.file_count != 0) | |
988 | { | |
989 | /* Write the count to the obstack. */ | |
990 | pack_long (obstack_base (&data_obstack), long_type, | |
991 | mapping_data.file_count); | |
992 | ||
993 | /* Copy the filenames to the data obstack. */ | |
994 | obstack_grow (&data_obstack, obstack_base (&filename_obstack), | |
995 | obstack_object_size (&filename_obstack)); | |
996 | ||
997 | note_data = elfcore_write_note (obfd, note_data, note_size, | |
998 | "CORE", NT_FILE, | |
999 | obstack_base (&data_obstack), | |
1000 | obstack_object_size (&data_obstack)); | |
1001 | } | |
1002 | ||
1003 | do_cleanups (cleanup); | |
1004 | return note_data; | |
1005 | } | |
1006 | ||
6432734d UW |
1007 | /* Records the thread's register state for the corefile note |
1008 | section. */ | |
1009 | ||
1010 | static char * | |
1011 | linux_collect_thread_registers (const struct regcache *regcache, | |
1012 | ptid_t ptid, bfd *obfd, | |
1013 | char *note_data, int *note_size, | |
2ea28649 | 1014 | enum gdb_signal stop_signal) |
6432734d UW |
1015 | { |
1016 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
1017 | struct core_regset_section *sect_list; | |
1018 | unsigned long lwp; | |
1019 | ||
1020 | sect_list = gdbarch_core_regset_sections (gdbarch); | |
1021 | gdb_assert (sect_list); | |
1022 | ||
1023 | /* For remote targets the LWP may not be available, so use the TID. */ | |
1024 | lwp = ptid_get_lwp (ptid); | |
1025 | if (!lwp) | |
1026 | lwp = ptid_get_tid (ptid); | |
1027 | ||
1028 | while (sect_list->sect_name != NULL) | |
1029 | { | |
1030 | const struct regset *regset; | |
1031 | char *buf; | |
1032 | ||
1033 | regset = gdbarch_regset_from_core_section (gdbarch, | |
1034 | sect_list->sect_name, | |
1035 | sect_list->size); | |
1036 | gdb_assert (regset && regset->collect_regset); | |
1037 | ||
1038 | buf = xmalloc (sect_list->size); | |
1039 | regset->collect_regset (regset, regcache, -1, buf, sect_list->size); | |
1040 | ||
1041 | /* PRSTATUS still needs to be treated specially. */ | |
1042 | if (strcmp (sect_list->sect_name, ".reg") == 0) | |
1043 | note_data = (char *) elfcore_write_prstatus | |
1044 | (obfd, note_data, note_size, lwp, | |
2ea28649 | 1045 | gdb_signal_to_host (stop_signal), buf); |
6432734d UW |
1046 | else |
1047 | note_data = (char *) elfcore_write_register_note | |
1048 | (obfd, note_data, note_size, | |
1049 | sect_list->sect_name, buf, sect_list->size); | |
1050 | xfree (buf); | |
1051 | sect_list++; | |
1052 | ||
1053 | if (!note_data) | |
1054 | return NULL; | |
1055 | } | |
1056 | ||
1057 | return note_data; | |
1058 | } | |
1059 | ||
9015683b TT |
1060 | /* Fetch the siginfo data for the current thread, if it exists. If |
1061 | there is no data, or we could not read it, return NULL. Otherwise, | |
1062 | return a newly malloc'd buffer holding the data and fill in *SIZE | |
1063 | with the size of the data. The caller is responsible for freeing | |
1064 | the data. */ | |
1065 | ||
1066 | static gdb_byte * | |
1067 | linux_get_siginfo_data (struct gdbarch *gdbarch, LONGEST *size) | |
1068 | { | |
1069 | struct type *siginfo_type; | |
1070 | gdb_byte *buf; | |
1071 | LONGEST bytes_read; | |
1072 | struct cleanup *cleanups; | |
1073 | ||
1074 | if (!gdbarch_get_siginfo_type_p (gdbarch)) | |
1075 | return NULL; | |
1076 | ||
1077 | siginfo_type = gdbarch_get_siginfo_type (gdbarch); | |
1078 | ||
1079 | buf = xmalloc (TYPE_LENGTH (siginfo_type)); | |
1080 | cleanups = make_cleanup (xfree, buf); | |
1081 | ||
1082 | bytes_read = target_read (¤t_target, TARGET_OBJECT_SIGNAL_INFO, NULL, | |
1083 | buf, 0, TYPE_LENGTH (siginfo_type)); | |
1084 | if (bytes_read == TYPE_LENGTH (siginfo_type)) | |
1085 | { | |
1086 | discard_cleanups (cleanups); | |
1087 | *size = bytes_read; | |
1088 | } | |
1089 | else | |
1090 | { | |
1091 | do_cleanups (cleanups); | |
1092 | buf = NULL; | |
1093 | } | |
1094 | ||
1095 | return buf; | |
1096 | } | |
1097 | ||
6432734d UW |
1098 | struct linux_corefile_thread_data |
1099 | { | |
1100 | struct gdbarch *gdbarch; | |
1101 | int pid; | |
1102 | bfd *obfd; | |
1103 | char *note_data; | |
1104 | int *note_size; | |
1105 | int num_notes; | |
2ea28649 | 1106 | enum gdb_signal stop_signal; |
6432734d UW |
1107 | linux_collect_thread_registers_ftype collect; |
1108 | }; | |
1109 | ||
1110 | /* Called by gdbthread.c once per thread. Records the thread's | |
1111 | register state for the corefile note section. */ | |
1112 | ||
1113 | static int | |
1114 | linux_corefile_thread_callback (struct thread_info *info, void *data) | |
1115 | { | |
1116 | struct linux_corefile_thread_data *args = data; | |
1117 | ||
1118 | if (ptid_get_pid (info->ptid) == args->pid) | |
1119 | { | |
1120 | struct cleanup *old_chain; | |
1121 | struct regcache *regcache; | |
9015683b TT |
1122 | gdb_byte *siginfo_data; |
1123 | LONGEST siginfo_size; | |
1124 | ||
6432734d UW |
1125 | regcache = get_thread_arch_regcache (info->ptid, args->gdbarch); |
1126 | ||
1127 | old_chain = save_inferior_ptid (); | |
1128 | inferior_ptid = info->ptid; | |
1129 | target_fetch_registers (regcache, -1); | |
9015683b | 1130 | siginfo_data = linux_get_siginfo_data (args->gdbarch, &siginfo_size); |
6432734d UW |
1131 | do_cleanups (old_chain); |
1132 | ||
9015683b TT |
1133 | old_chain = make_cleanup (xfree, siginfo_data); |
1134 | ||
6432734d UW |
1135 | args->note_data = args->collect (regcache, info->ptid, args->obfd, |
1136 | args->note_data, args->note_size, | |
1137 | args->stop_signal); | |
1138 | args->num_notes++; | |
9015683b TT |
1139 | |
1140 | if (siginfo_data != NULL) | |
1141 | { | |
1142 | args->note_data = elfcore_write_note (args->obfd, | |
1143 | args->note_data, | |
1144 | args->note_size, | |
1145 | "CORE", NT_SIGINFO, | |
1146 | siginfo_data, siginfo_size); | |
1147 | args->num_notes++; | |
1148 | } | |
1149 | ||
1150 | do_cleanups (old_chain); | |
6432734d UW |
1151 | } |
1152 | ||
1153 | return !args->note_data; | |
1154 | } | |
1155 | ||
1156 | /* Fills the "to_make_corefile_note" target vector. Builds the note | |
1157 | section for a corefile, and returns it in a malloc buffer. */ | |
1158 | ||
1159 | char * | |
1160 | linux_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size, | |
1161 | linux_collect_thread_registers_ftype collect) | |
1162 | { | |
1163 | struct linux_corefile_thread_data thread_args; | |
1164 | char *note_data = NULL; | |
1165 | gdb_byte *auxv; | |
1166 | int auxv_len; | |
1167 | ||
1168 | /* Process information. */ | |
1169 | if (get_exec_file (0)) | |
1170 | { | |
1171 | const char *fname = lbasename (get_exec_file (0)); | |
1172 | char *psargs = xstrdup (fname); | |
1173 | ||
1174 | if (get_inferior_args ()) | |
1175 | psargs = reconcat (psargs, psargs, " ", get_inferior_args (), | |
1176 | (char *) NULL); | |
1177 | ||
1178 | note_data = elfcore_write_prpsinfo (obfd, note_data, note_size, | |
1179 | fname, psargs); | |
1180 | xfree (psargs); | |
1181 | ||
1182 | if (!note_data) | |
1183 | return NULL; | |
1184 | } | |
1185 | ||
1186 | /* Thread register information. */ | |
1187 | thread_args.gdbarch = gdbarch; | |
1188 | thread_args.pid = ptid_get_pid (inferior_ptid); | |
1189 | thread_args.obfd = obfd; | |
1190 | thread_args.note_data = note_data; | |
1191 | thread_args.note_size = note_size; | |
1192 | thread_args.num_notes = 0; | |
1193 | thread_args.stop_signal = find_stop_signal (); | |
1194 | thread_args.collect = collect; | |
1195 | iterate_over_threads (linux_corefile_thread_callback, &thread_args); | |
1196 | note_data = thread_args.note_data; | |
1197 | if (!note_data) | |
1198 | return NULL; | |
1199 | ||
1200 | /* Auxillary vector. */ | |
1201 | auxv_len = target_read_alloc (¤t_target, TARGET_OBJECT_AUXV, | |
1202 | NULL, &auxv); | |
1203 | if (auxv_len > 0) | |
1204 | { | |
1205 | note_data = elfcore_write_note (obfd, note_data, note_size, | |
1206 | "CORE", NT_AUXV, auxv, auxv_len); | |
1207 | xfree (auxv); | |
1208 | ||
1209 | if (!note_data) | |
1210 | return NULL; | |
1211 | } | |
1212 | ||
1213 | /* SPU information. */ | |
1214 | note_data = linux_spu_make_corefile_notes (obfd, note_data, note_size); | |
1215 | if (!note_data) | |
1216 | return NULL; | |
1217 | ||
451b7c33 TT |
1218 | /* File mappings. */ |
1219 | note_data = linux_make_mappings_corefile_notes (gdbarch, obfd, | |
1220 | note_data, note_size); | |
1221 | ||
6432734d UW |
1222 | make_cleanup (xfree, note_data); |
1223 | return note_data; | |
1224 | } | |
1225 | ||
1226 | static char * | |
1227 | linux_make_corefile_notes_1 (struct gdbarch *gdbarch, bfd *obfd, int *note_size) | |
1228 | { | |
1229 | /* FIXME: uweigand/2011-10-06: Once all GNU/Linux architectures have been | |
1230 | converted to gdbarch_core_regset_sections, we no longer need to fall back | |
1231 | to the target method at this point. */ | |
1232 | ||
1233 | if (!gdbarch_core_regset_sections (gdbarch)) | |
1234 | return target_make_corefile_notes (obfd, note_size); | |
1235 | else | |
1236 | return linux_make_corefile_notes (gdbarch, obfd, note_size, | |
1237 | linux_collect_thread_registers); | |
1238 | } | |
1239 | ||
a5ee0f0c PA |
1240 | /* To be called from the various GDB_OSABI_LINUX handlers for the |
1241 | various GNU/Linux architectures and machine types. */ | |
1242 | ||
1243 | void | |
1244 | linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) | |
1245 | { | |
1246 | set_gdbarch_core_pid_to_str (gdbarch, linux_core_pid_to_str); | |
3030c96e | 1247 | set_gdbarch_info_proc (gdbarch, linux_info_proc); |
451b7c33 | 1248 | set_gdbarch_core_info_proc (gdbarch, linux_core_info_proc); |
35c2fab7 | 1249 | set_gdbarch_find_memory_regions (gdbarch, linux_find_memory_regions); |
6432734d | 1250 | set_gdbarch_make_corefile_notes (gdbarch, linux_make_corefile_notes_1); |
33fbcbee PA |
1251 | set_gdbarch_has_shared_address_space (gdbarch, |
1252 | linux_has_shared_address_space); | |
a5ee0f0c | 1253 | } |
06253dd3 | 1254 | |
70221824 PA |
1255 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
1256 | extern initialize_file_ftype _initialize_linux_tdep; | |
1257 | ||
06253dd3 JK |
1258 | void |
1259 | _initialize_linux_tdep (void) | |
1260 | { | |
1261 | linux_gdbarch_data_handle = | |
1262 | gdbarch_data_register_post_init (init_linux_gdbarch_data); | |
1263 | } |