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4aa995e1 PA |
1 | /* Target-dependent code for GNU/Linux, architecture independent. |
2 | ||
ecd75fc8 | 3 | Copyright (C) 2009-2014 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 | |
eb14d406 SDJ |
38 | /* This enum represents the signals' numbers on a generic architecture |
39 | running the Linux kernel. The definition of "generic" comes from | |
40 | the file <include/uapi/asm-generic/signal.h>, from the Linux kernel | |
41 | tree, which is the "de facto" implementation of signal numbers to | |
42 | be used by new architecture ports. | |
43 | ||
44 | For those architectures which have differences between the generic | |
45 | standard (e.g., Alpha), we define the different signals (and *only* | |
46 | those) in the specific target-dependent file (e.g., | |
47 | alpha-linux-tdep.c, for Alpha). Please refer to the architecture's | |
48 | tdep file for more information. | |
49 | ||
50 | ARM deserves a special mention here. On the file | |
51 | <arch/arm/include/uapi/asm/signal.h>, it defines only one different | |
52 | (and ARM-only) signal, which is SIGSWI, with the same number as | |
53 | SIGRTMIN. This signal is used only for a very specific target, | |
54 | called ArthurOS (from RISCOS). Therefore, we do not handle it on | |
55 | the ARM-tdep file, and we can safely use the generic signal handler | |
56 | here for ARM targets. | |
57 | ||
58 | As stated above, this enum is derived from | |
59 | <include/uapi/asm-generic/signal.h>, from the Linux kernel | |
60 | tree. */ | |
61 | ||
62 | enum | |
63 | { | |
64 | LINUX_SIGHUP = 1, | |
65 | LINUX_SIGINT = 2, | |
66 | LINUX_SIGQUIT = 3, | |
67 | LINUX_SIGILL = 4, | |
68 | LINUX_SIGTRAP = 5, | |
69 | LINUX_SIGABRT = 6, | |
70 | LINUX_SIGIOT = 6, | |
71 | LINUX_SIGBUS = 7, | |
72 | LINUX_SIGFPE = 8, | |
73 | LINUX_SIGKILL = 9, | |
74 | LINUX_SIGUSR1 = 10, | |
75 | LINUX_SIGSEGV = 11, | |
76 | LINUX_SIGUSR2 = 12, | |
77 | LINUX_SIGPIPE = 13, | |
78 | LINUX_SIGALRM = 14, | |
79 | LINUX_SIGTERM = 15, | |
80 | LINUX_SIGSTKFLT = 16, | |
81 | LINUX_SIGCHLD = 17, | |
82 | LINUX_SIGCONT = 18, | |
83 | LINUX_SIGSTOP = 19, | |
84 | LINUX_SIGTSTP = 20, | |
85 | LINUX_SIGTTIN = 21, | |
86 | LINUX_SIGTTOU = 22, | |
87 | LINUX_SIGURG = 23, | |
88 | LINUX_SIGXCPU = 24, | |
89 | LINUX_SIGXFSZ = 25, | |
90 | LINUX_SIGVTALRM = 26, | |
91 | LINUX_SIGPROF = 27, | |
92 | LINUX_SIGWINCH = 28, | |
93 | LINUX_SIGIO = 29, | |
94 | LINUX_SIGPOLL = LINUX_SIGIO, | |
95 | LINUX_SIGPWR = 30, | |
96 | LINUX_SIGSYS = 31, | |
97 | LINUX_SIGUNUSED = 31, | |
98 | ||
99 | LINUX_SIGRTMIN = 32, | |
100 | LINUX_SIGRTMAX = 64, | |
101 | }; | |
102 | ||
06253dd3 JK |
103 | static struct gdbarch_data *linux_gdbarch_data_handle; |
104 | ||
105 | struct linux_gdbarch_data | |
106 | { | |
107 | struct type *siginfo_type; | |
108 | }; | |
109 | ||
110 | static void * | |
111 | init_linux_gdbarch_data (struct gdbarch *gdbarch) | |
112 | { | |
113 | return GDBARCH_OBSTACK_ZALLOC (gdbarch, struct linux_gdbarch_data); | |
114 | } | |
115 | ||
116 | static struct linux_gdbarch_data * | |
117 | get_linux_gdbarch_data (struct gdbarch *gdbarch) | |
118 | { | |
119 | return gdbarch_data (gdbarch, linux_gdbarch_data_handle); | |
120 | } | |
121 | ||
4aa995e1 PA |
122 | /* This function is suitable for architectures that don't |
123 | extend/override the standard siginfo structure. */ | |
124 | ||
125 | struct type * | |
126 | linux_get_siginfo_type (struct gdbarch *gdbarch) | |
127 | { | |
06253dd3 | 128 | struct linux_gdbarch_data *linux_gdbarch_data; |
4aa995e1 PA |
129 | struct type *int_type, *uint_type, *long_type, *void_ptr_type; |
130 | struct type *uid_type, *pid_type; | |
131 | struct type *sigval_type, *clock_type; | |
132 | struct type *siginfo_type, *sifields_type; | |
133 | struct type *type; | |
134 | ||
06253dd3 JK |
135 | linux_gdbarch_data = get_linux_gdbarch_data (gdbarch); |
136 | if (linux_gdbarch_data->siginfo_type != NULL) | |
137 | return linux_gdbarch_data->siginfo_type; | |
138 | ||
e9bb382b UW |
139 | int_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), |
140 | 0, "int"); | |
141 | uint_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
142 | 1, "unsigned int"); | |
143 | long_type = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
144 | 0, "long"); | |
4aa995e1 PA |
145 | void_ptr_type = lookup_pointer_type (builtin_type (gdbarch)->builtin_void); |
146 | ||
147 | /* sival_t */ | |
e9bb382b | 148 | sigval_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION); |
4aa995e1 PA |
149 | TYPE_NAME (sigval_type) = xstrdup ("sigval_t"); |
150 | append_composite_type_field (sigval_type, "sival_int", int_type); | |
151 | append_composite_type_field (sigval_type, "sival_ptr", void_ptr_type); | |
152 | ||
153 | /* __pid_t */ | |
e3aa49af MS |
154 | pid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, |
155 | TYPE_LENGTH (int_type), "__pid_t"); | |
4aa995e1 | 156 | TYPE_TARGET_TYPE (pid_type) = int_type; |
e9bb382b | 157 | TYPE_TARGET_STUB (pid_type) = 1; |
4aa995e1 PA |
158 | |
159 | /* __uid_t */ | |
e3aa49af MS |
160 | uid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, |
161 | TYPE_LENGTH (uint_type), "__uid_t"); | |
4aa995e1 | 162 | TYPE_TARGET_TYPE (uid_type) = uint_type; |
e9bb382b | 163 | TYPE_TARGET_STUB (uid_type) = 1; |
4aa995e1 PA |
164 | |
165 | /* __clock_t */ | |
e3aa49af MS |
166 | clock_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, |
167 | TYPE_LENGTH (long_type), "__clock_t"); | |
4aa995e1 | 168 | TYPE_TARGET_TYPE (clock_type) = long_type; |
e9bb382b | 169 | TYPE_TARGET_STUB (clock_type) = 1; |
4aa995e1 PA |
170 | |
171 | /* _sifields */ | |
e9bb382b | 172 | sifields_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION); |
4aa995e1 PA |
173 | |
174 | { | |
175 | const int si_max_size = 128; | |
176 | int si_pad_size; | |
177 | int size_of_int = gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT; | |
178 | ||
179 | /* _pad */ | |
180 | if (gdbarch_ptr_bit (gdbarch) == 64) | |
181 | si_pad_size = (si_max_size / size_of_int) - 4; | |
182 | else | |
183 | si_pad_size = (si_max_size / size_of_int) - 3; | |
184 | append_composite_type_field (sifields_type, "_pad", | |
185 | init_vector_type (int_type, si_pad_size)); | |
186 | } | |
187 | ||
188 | /* _kill */ | |
e9bb382b | 189 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
190 | append_composite_type_field (type, "si_pid", pid_type); |
191 | append_composite_type_field (type, "si_uid", uid_type); | |
192 | append_composite_type_field (sifields_type, "_kill", type); | |
193 | ||
194 | /* _timer */ | |
e9bb382b | 195 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
196 | append_composite_type_field (type, "si_tid", int_type); |
197 | append_composite_type_field (type, "si_overrun", int_type); | |
198 | append_composite_type_field (type, "si_sigval", sigval_type); | |
199 | append_composite_type_field (sifields_type, "_timer", type); | |
200 | ||
201 | /* _rt */ | |
e9bb382b | 202 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
203 | append_composite_type_field (type, "si_pid", pid_type); |
204 | append_composite_type_field (type, "si_uid", uid_type); | |
205 | append_composite_type_field (type, "si_sigval", sigval_type); | |
206 | append_composite_type_field (sifields_type, "_rt", type); | |
207 | ||
208 | /* _sigchld */ | |
e9bb382b | 209 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
210 | append_composite_type_field (type, "si_pid", pid_type); |
211 | append_composite_type_field (type, "si_uid", uid_type); | |
212 | append_composite_type_field (type, "si_status", int_type); | |
213 | append_composite_type_field (type, "si_utime", clock_type); | |
214 | append_composite_type_field (type, "si_stime", clock_type); | |
215 | append_composite_type_field (sifields_type, "_sigchld", type); | |
216 | ||
217 | /* _sigfault */ | |
e9bb382b | 218 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
219 | append_composite_type_field (type, "si_addr", void_ptr_type); |
220 | append_composite_type_field (sifields_type, "_sigfault", type); | |
221 | ||
222 | /* _sigpoll */ | |
e9bb382b | 223 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
224 | append_composite_type_field (type, "si_band", long_type); |
225 | append_composite_type_field (type, "si_fd", int_type); | |
226 | append_composite_type_field (sifields_type, "_sigpoll", type); | |
227 | ||
228 | /* struct siginfo */ | |
e9bb382b | 229 | siginfo_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
230 | TYPE_NAME (siginfo_type) = xstrdup ("siginfo"); |
231 | append_composite_type_field (siginfo_type, "si_signo", int_type); | |
232 | append_composite_type_field (siginfo_type, "si_errno", int_type); | |
233 | append_composite_type_field (siginfo_type, "si_code", int_type); | |
234 | append_composite_type_field_aligned (siginfo_type, | |
235 | "_sifields", sifields_type, | |
236 | TYPE_LENGTH (long_type)); | |
237 | ||
06253dd3 JK |
238 | linux_gdbarch_data->siginfo_type = siginfo_type; |
239 | ||
4aa995e1 PA |
240 | return siginfo_type; |
241 | } | |
6b3ae818 | 242 | |
c01cbb3d YQ |
243 | /* Return true if the target is running on uClinux instead of normal |
244 | Linux kernel. */ | |
245 | ||
246 | int | |
247 | linux_is_uclinux (void) | |
6c95b8df | 248 | { |
6c95b8df | 249 | CORE_ADDR dummy; |
6c95b8df | 250 | |
c01cbb3d YQ |
251 | return (target_auxv_search (¤t_target, AT_NULL, &dummy) > 0 |
252 | && target_auxv_search (¤t_target, AT_PAGESZ, &dummy) == 0); | |
253 | } | |
6c95b8df | 254 | |
c01cbb3d YQ |
255 | static int |
256 | linux_has_shared_address_space (struct gdbarch *gdbarch) | |
257 | { | |
258 | return linux_is_uclinux (); | |
6c95b8df | 259 | } |
a5ee0f0c PA |
260 | |
261 | /* This is how we want PTIDs from core files to be printed. */ | |
262 | ||
263 | static char * | |
264 | linux_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid) | |
265 | { | |
266 | static char buf[80]; | |
267 | ||
268 | if (ptid_get_lwp (ptid) != 0) | |
269 | { | |
270 | snprintf (buf, sizeof (buf), "LWP %ld", ptid_get_lwp (ptid)); | |
271 | return buf; | |
272 | } | |
273 | ||
274 | return normal_pid_to_str (ptid); | |
275 | } | |
276 | ||
3030c96e UW |
277 | /* Service function for corefiles and info proc. */ |
278 | ||
279 | static void | |
280 | read_mapping (const char *line, | |
281 | ULONGEST *addr, ULONGEST *endaddr, | |
282 | const char **permissions, size_t *permissions_len, | |
283 | ULONGEST *offset, | |
284 | const char **device, size_t *device_len, | |
285 | ULONGEST *inode, | |
286 | const char **filename) | |
287 | { | |
288 | const char *p = line; | |
289 | ||
290 | *addr = strtoulst (p, &p, 16); | |
291 | if (*p == '-') | |
292 | p++; | |
293 | *endaddr = strtoulst (p, &p, 16); | |
294 | ||
529480d0 | 295 | p = skip_spaces_const (p); |
3030c96e UW |
296 | *permissions = p; |
297 | while (*p && !isspace (*p)) | |
298 | p++; | |
299 | *permissions_len = p - *permissions; | |
300 | ||
301 | *offset = strtoulst (p, &p, 16); | |
302 | ||
529480d0 | 303 | p = skip_spaces_const (p); |
3030c96e UW |
304 | *device = p; |
305 | while (*p && !isspace (*p)) | |
306 | p++; | |
307 | *device_len = p - *device; | |
308 | ||
309 | *inode = strtoulst (p, &p, 10); | |
310 | ||
529480d0 | 311 | p = skip_spaces_const (p); |
3030c96e UW |
312 | *filename = p; |
313 | } | |
314 | ||
315 | /* Implement the "info proc" command. */ | |
316 | ||
317 | static void | |
318 | linux_info_proc (struct gdbarch *gdbarch, char *args, | |
319 | enum info_proc_what what) | |
320 | { | |
321 | /* A long is used for pid instead of an int to avoid a loss of precision | |
322 | compiler warning from the output of strtoul. */ | |
323 | long pid; | |
324 | int cmdline_f = (what == IP_MINIMAL || what == IP_CMDLINE || what == IP_ALL); | |
325 | int cwd_f = (what == IP_MINIMAL || what == IP_CWD || what == IP_ALL); | |
326 | int exe_f = (what == IP_MINIMAL || what == IP_EXE || what == IP_ALL); | |
327 | int mappings_f = (what == IP_MAPPINGS || what == IP_ALL); | |
328 | int status_f = (what == IP_STATUS || what == IP_ALL); | |
329 | int stat_f = (what == IP_STAT || what == IP_ALL); | |
330 | char filename[100]; | |
001f13d8 | 331 | char *data; |
3030c96e UW |
332 | int target_errno; |
333 | ||
334 | if (args && isdigit (args[0])) | |
335 | pid = strtoul (args, &args, 10); | |
336 | else | |
337 | { | |
338 | if (!target_has_execution) | |
339 | error (_("No current process: you must name one.")); | |
340 | if (current_inferior ()->fake_pid_p) | |
341 | error (_("Can't determine the current process's PID: you must name one.")); | |
342 | ||
343 | pid = current_inferior ()->pid; | |
344 | } | |
345 | ||
346 | args = skip_spaces (args); | |
347 | if (args && args[0]) | |
348 | error (_("Too many parameters: %s"), args); | |
349 | ||
350 | printf_filtered (_("process %ld\n"), pid); | |
351 | if (cmdline_f) | |
352 | { | |
353 | xsnprintf (filename, sizeof filename, "/proc/%ld/cmdline", pid); | |
354 | data = target_fileio_read_stralloc (filename); | |
355 | if (data) | |
356 | { | |
357 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
358 | printf_filtered ("cmdline = '%s'\n", data); | |
359 | do_cleanups (cleanup); | |
360 | } | |
361 | else | |
362 | warning (_("unable to open /proc file '%s'"), filename); | |
363 | } | |
364 | if (cwd_f) | |
365 | { | |
366 | xsnprintf (filename, sizeof filename, "/proc/%ld/cwd", pid); | |
367 | data = target_fileio_readlink (filename, &target_errno); | |
368 | if (data) | |
369 | { | |
370 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
371 | printf_filtered ("cwd = '%s'\n", data); | |
372 | do_cleanups (cleanup); | |
373 | } | |
374 | else | |
375 | warning (_("unable to read link '%s'"), filename); | |
376 | } | |
377 | if (exe_f) | |
378 | { | |
379 | xsnprintf (filename, sizeof filename, "/proc/%ld/exe", pid); | |
380 | data = target_fileio_readlink (filename, &target_errno); | |
381 | if (data) | |
382 | { | |
383 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
384 | printf_filtered ("exe = '%s'\n", data); | |
385 | do_cleanups (cleanup); | |
386 | } | |
387 | else | |
388 | warning (_("unable to read link '%s'"), filename); | |
389 | } | |
390 | if (mappings_f) | |
391 | { | |
392 | xsnprintf (filename, sizeof filename, "/proc/%ld/maps", pid); | |
393 | data = target_fileio_read_stralloc (filename); | |
394 | if (data) | |
395 | { | |
396 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
397 | char *line; | |
398 | ||
399 | printf_filtered (_("Mapped address spaces:\n\n")); | |
400 | if (gdbarch_addr_bit (gdbarch) == 32) | |
401 | { | |
402 | printf_filtered ("\t%10s %10s %10s %10s %s\n", | |
403 | "Start Addr", | |
404 | " End Addr", | |
405 | " Size", " Offset", "objfile"); | |
406 | } | |
407 | else | |
408 | { | |
409 | printf_filtered (" %18s %18s %10s %10s %s\n", | |
410 | "Start Addr", | |
411 | " End Addr", | |
412 | " Size", " Offset", "objfile"); | |
413 | } | |
414 | ||
415 | for (line = strtok (data, "\n"); line; line = strtok (NULL, "\n")) | |
416 | { | |
417 | ULONGEST addr, endaddr, offset, inode; | |
418 | const char *permissions, *device, *filename; | |
419 | size_t permissions_len, device_len; | |
420 | ||
421 | read_mapping (line, &addr, &endaddr, | |
422 | &permissions, &permissions_len, | |
423 | &offset, &device, &device_len, | |
424 | &inode, &filename); | |
425 | ||
426 | if (gdbarch_addr_bit (gdbarch) == 32) | |
427 | { | |
428 | printf_filtered ("\t%10s %10s %10s %10s %s\n", | |
429 | paddress (gdbarch, addr), | |
430 | paddress (gdbarch, endaddr), | |
431 | hex_string (endaddr - addr), | |
432 | hex_string (offset), | |
433 | *filename? filename : ""); | |
434 | } | |
435 | else | |
436 | { | |
437 | printf_filtered (" %18s %18s %10s %10s %s\n", | |
438 | paddress (gdbarch, addr), | |
439 | paddress (gdbarch, endaddr), | |
440 | hex_string (endaddr - addr), | |
441 | hex_string (offset), | |
442 | *filename? filename : ""); | |
443 | } | |
444 | } | |
445 | ||
446 | do_cleanups (cleanup); | |
447 | } | |
448 | else | |
449 | warning (_("unable to open /proc file '%s'"), filename); | |
450 | } | |
451 | if (status_f) | |
452 | { | |
453 | xsnprintf (filename, sizeof filename, "/proc/%ld/status", pid); | |
454 | data = target_fileio_read_stralloc (filename); | |
455 | if (data) | |
456 | { | |
457 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
458 | puts_filtered (data); | |
459 | do_cleanups (cleanup); | |
460 | } | |
461 | else | |
462 | warning (_("unable to open /proc file '%s'"), filename); | |
463 | } | |
464 | if (stat_f) | |
465 | { | |
466 | xsnprintf (filename, sizeof filename, "/proc/%ld/stat", pid); | |
467 | data = target_fileio_read_stralloc (filename); | |
468 | if (data) | |
469 | { | |
470 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
471 | const char *p = data; | |
3030c96e UW |
472 | |
473 | printf_filtered (_("Process: %s\n"), | |
474 | pulongest (strtoulst (p, &p, 10))); | |
475 | ||
529480d0 | 476 | p = skip_spaces_const (p); |
a71b5a38 | 477 | if (*p == '(') |
3030c96e | 478 | { |
a71b5a38 UW |
479 | const char *ep = strchr (p, ')'); |
480 | if (ep != NULL) | |
481 | { | |
482 | printf_filtered ("Exec file: %.*s\n", | |
483 | (int) (ep - p - 1), p + 1); | |
484 | p = ep + 1; | |
485 | } | |
3030c96e UW |
486 | } |
487 | ||
529480d0 | 488 | p = skip_spaces_const (p); |
3030c96e UW |
489 | if (*p) |
490 | printf_filtered (_("State: %c\n"), *p++); | |
491 | ||
492 | if (*p) | |
493 | printf_filtered (_("Parent process: %s\n"), | |
494 | pulongest (strtoulst (p, &p, 10))); | |
495 | if (*p) | |
496 | printf_filtered (_("Process group: %s\n"), | |
497 | pulongest (strtoulst (p, &p, 10))); | |
498 | if (*p) | |
499 | printf_filtered (_("Session id: %s\n"), | |
500 | pulongest (strtoulst (p, &p, 10))); | |
501 | if (*p) | |
502 | printf_filtered (_("TTY: %s\n"), | |
503 | pulongest (strtoulst (p, &p, 10))); | |
504 | if (*p) | |
505 | printf_filtered (_("TTY owner process group: %s\n"), | |
506 | pulongest (strtoulst (p, &p, 10))); | |
507 | ||
508 | if (*p) | |
509 | printf_filtered (_("Flags: %s\n"), | |
510 | hex_string (strtoulst (p, &p, 10))); | |
511 | if (*p) | |
512 | printf_filtered (_("Minor faults (no memory page): %s\n"), | |
513 | pulongest (strtoulst (p, &p, 10))); | |
514 | if (*p) | |
515 | printf_filtered (_("Minor faults, children: %s\n"), | |
516 | pulongest (strtoulst (p, &p, 10))); | |
517 | if (*p) | |
518 | printf_filtered (_("Major faults (memory page faults): %s\n"), | |
519 | pulongest (strtoulst (p, &p, 10))); | |
520 | if (*p) | |
521 | printf_filtered (_("Major faults, children: %s\n"), | |
522 | pulongest (strtoulst (p, &p, 10))); | |
523 | if (*p) | |
524 | printf_filtered (_("utime: %s\n"), | |
525 | pulongest (strtoulst (p, &p, 10))); | |
526 | if (*p) | |
527 | printf_filtered (_("stime: %s\n"), | |
528 | pulongest (strtoulst (p, &p, 10))); | |
529 | if (*p) | |
530 | printf_filtered (_("utime, children: %s\n"), | |
531 | pulongest (strtoulst (p, &p, 10))); | |
532 | if (*p) | |
533 | printf_filtered (_("stime, children: %s\n"), | |
534 | pulongest (strtoulst (p, &p, 10))); | |
535 | if (*p) | |
536 | printf_filtered (_("jiffies remaining in current " | |
537 | "time slice: %s\n"), | |
538 | pulongest (strtoulst (p, &p, 10))); | |
539 | if (*p) | |
540 | printf_filtered (_("'nice' value: %s\n"), | |
541 | pulongest (strtoulst (p, &p, 10))); | |
542 | if (*p) | |
543 | printf_filtered (_("jiffies until next timeout: %s\n"), | |
544 | pulongest (strtoulst (p, &p, 10))); | |
545 | if (*p) | |
546 | printf_filtered (_("jiffies until next SIGALRM: %s\n"), | |
547 | pulongest (strtoulst (p, &p, 10))); | |
548 | if (*p) | |
549 | printf_filtered (_("start time (jiffies since " | |
550 | "system boot): %s\n"), | |
551 | pulongest (strtoulst (p, &p, 10))); | |
552 | if (*p) | |
553 | printf_filtered (_("Virtual memory size: %s\n"), | |
554 | pulongest (strtoulst (p, &p, 10))); | |
555 | if (*p) | |
556 | printf_filtered (_("Resident set size: %s\n"), | |
557 | pulongest (strtoulst (p, &p, 10))); | |
558 | if (*p) | |
559 | printf_filtered (_("rlim: %s\n"), | |
560 | pulongest (strtoulst (p, &p, 10))); | |
561 | if (*p) | |
562 | printf_filtered (_("Start of text: %s\n"), | |
563 | hex_string (strtoulst (p, &p, 10))); | |
564 | if (*p) | |
565 | printf_filtered (_("End of text: %s\n"), | |
566 | hex_string (strtoulst (p, &p, 10))); | |
567 | if (*p) | |
568 | printf_filtered (_("Start of stack: %s\n"), | |
569 | hex_string (strtoulst (p, &p, 10))); | |
570 | #if 0 /* Don't know how architecture-dependent the rest is... | |
571 | Anyway the signal bitmap info is available from "status". */ | |
572 | if (*p) | |
573 | printf_filtered (_("Kernel stack pointer: %s\n"), | |
574 | hex_string (strtoulst (p, &p, 10))); | |
575 | if (*p) | |
576 | printf_filtered (_("Kernel instr pointer: %s\n"), | |
577 | hex_string (strtoulst (p, &p, 10))); | |
578 | if (*p) | |
579 | printf_filtered (_("Pending signals bitmap: %s\n"), | |
580 | hex_string (strtoulst (p, &p, 10))); | |
581 | if (*p) | |
582 | printf_filtered (_("Blocked signals bitmap: %s\n"), | |
583 | hex_string (strtoulst (p, &p, 10))); | |
584 | if (*p) | |
585 | printf_filtered (_("Ignored signals bitmap: %s\n"), | |
586 | hex_string (strtoulst (p, &p, 10))); | |
587 | if (*p) | |
588 | printf_filtered (_("Catched signals bitmap: %s\n"), | |
589 | hex_string (strtoulst (p, &p, 10))); | |
590 | if (*p) | |
591 | printf_filtered (_("wchan (system call): %s\n"), | |
592 | hex_string (strtoulst (p, &p, 10))); | |
593 | #endif | |
594 | do_cleanups (cleanup); | |
595 | } | |
596 | else | |
597 | warning (_("unable to open /proc file '%s'"), filename); | |
598 | } | |
599 | } | |
600 | ||
451b7c33 TT |
601 | /* Implement "info proc mappings" for a corefile. */ |
602 | ||
603 | static void | |
604 | linux_core_info_proc_mappings (struct gdbarch *gdbarch, char *args) | |
605 | { | |
606 | asection *section; | |
607 | ULONGEST count, page_size; | |
608 | unsigned char *descdata, *filenames, *descend, *contents; | |
609 | size_t note_size; | |
610 | unsigned int addr_size_bits, addr_size; | |
611 | struct cleanup *cleanup; | |
612 | struct gdbarch *core_gdbarch = gdbarch_from_bfd (core_bfd); | |
613 | /* We assume this for reading 64-bit core files. */ | |
614 | gdb_static_assert (sizeof (ULONGEST) >= 8); | |
615 | ||
616 | section = bfd_get_section_by_name (core_bfd, ".note.linuxcore.file"); | |
617 | if (section == NULL) | |
618 | { | |
619 | warning (_("unable to find mappings in core file")); | |
620 | return; | |
621 | } | |
622 | ||
623 | addr_size_bits = gdbarch_addr_bit (core_gdbarch); | |
624 | addr_size = addr_size_bits / 8; | |
625 | note_size = bfd_get_section_size (section); | |
626 | ||
627 | if (note_size < 2 * addr_size) | |
628 | error (_("malformed core note - too short for header")); | |
629 | ||
630 | contents = xmalloc (note_size); | |
631 | cleanup = make_cleanup (xfree, contents); | |
632 | if (!bfd_get_section_contents (core_bfd, section, contents, 0, note_size)) | |
633 | error (_("could not get core note contents")); | |
634 | ||
635 | descdata = contents; | |
636 | descend = descdata + note_size; | |
637 | ||
638 | if (descdata[note_size - 1] != '\0') | |
639 | error (_("malformed note - does not end with \\0")); | |
640 | ||
641 | count = bfd_get (addr_size_bits, core_bfd, descdata); | |
642 | descdata += addr_size; | |
643 | ||
644 | page_size = bfd_get (addr_size_bits, core_bfd, descdata); | |
645 | descdata += addr_size; | |
646 | ||
647 | if (note_size < 2 * addr_size + count * 3 * addr_size) | |
648 | error (_("malformed note - too short for supplied file count")); | |
649 | ||
650 | printf_filtered (_("Mapped address spaces:\n\n")); | |
651 | if (gdbarch_addr_bit (gdbarch) == 32) | |
652 | { | |
653 | printf_filtered ("\t%10s %10s %10s %10s %s\n", | |
654 | "Start Addr", | |
655 | " End Addr", | |
656 | " Size", " Offset", "objfile"); | |
657 | } | |
658 | else | |
659 | { | |
660 | printf_filtered (" %18s %18s %10s %10s %s\n", | |
661 | "Start Addr", | |
662 | " End Addr", | |
663 | " Size", " Offset", "objfile"); | |
664 | } | |
665 | ||
666 | filenames = descdata + count * 3 * addr_size; | |
667 | while (--count > 0) | |
668 | { | |
669 | ULONGEST start, end, file_ofs; | |
670 | ||
671 | if (filenames == descend) | |
672 | error (_("malformed note - filenames end too early")); | |
673 | ||
674 | start = bfd_get (addr_size_bits, core_bfd, descdata); | |
675 | descdata += addr_size; | |
676 | end = bfd_get (addr_size_bits, core_bfd, descdata); | |
677 | descdata += addr_size; | |
678 | file_ofs = bfd_get (addr_size_bits, core_bfd, descdata); | |
679 | descdata += addr_size; | |
680 | ||
681 | file_ofs *= page_size; | |
682 | ||
683 | if (gdbarch_addr_bit (gdbarch) == 32) | |
684 | printf_filtered ("\t%10s %10s %10s %10s %s\n", | |
685 | paddress (gdbarch, start), | |
686 | paddress (gdbarch, end), | |
687 | hex_string (end - start), | |
688 | hex_string (file_ofs), | |
689 | filenames); | |
690 | else | |
691 | printf_filtered (" %18s %18s %10s %10s %s\n", | |
692 | paddress (gdbarch, start), | |
693 | paddress (gdbarch, end), | |
694 | hex_string (end - start), | |
695 | hex_string (file_ofs), | |
696 | filenames); | |
697 | ||
698 | filenames += 1 + strlen ((char *) filenames); | |
699 | } | |
700 | ||
701 | do_cleanups (cleanup); | |
702 | } | |
703 | ||
704 | /* Implement "info proc" for a corefile. */ | |
705 | ||
706 | static void | |
707 | linux_core_info_proc (struct gdbarch *gdbarch, char *args, | |
708 | enum info_proc_what what) | |
709 | { | |
710 | int exe_f = (what == IP_MINIMAL || what == IP_EXE || what == IP_ALL); | |
711 | int mappings_f = (what == IP_MAPPINGS || what == IP_ALL); | |
712 | ||
713 | if (exe_f) | |
714 | { | |
715 | const char *exe; | |
716 | ||
717 | exe = bfd_core_file_failing_command (core_bfd); | |
718 | if (exe != NULL) | |
719 | printf_filtered ("exe = '%s'\n", exe); | |
720 | else | |
721 | warning (_("unable to find command name in core file")); | |
722 | } | |
723 | ||
724 | if (mappings_f) | |
725 | linux_core_info_proc_mappings (gdbarch, args); | |
726 | ||
727 | if (!exe_f && !mappings_f) | |
728 | error (_("unable to handle request")); | |
729 | } | |
730 | ||
731 | typedef int linux_find_memory_region_ftype (ULONGEST vaddr, ULONGEST size, | |
732 | ULONGEST offset, ULONGEST inode, | |
733 | int read, int write, | |
734 | int exec, int modified, | |
735 | const char *filename, | |
736 | void *data); | |
737 | ||
35c2fab7 UW |
738 | /* List memory regions in the inferior for a corefile. */ |
739 | ||
740 | static int | |
451b7c33 TT |
741 | linux_find_memory_regions_full (struct gdbarch *gdbarch, |
742 | linux_find_memory_region_ftype *func, | |
743 | void *obfd) | |
35c2fab7 | 744 | { |
d1794952 | 745 | char mapsfilename[100]; |
001f13d8 | 746 | char *data; |
35c2fab7 UW |
747 | |
748 | /* We need to know the real target PID to access /proc. */ | |
749 | if (current_inferior ()->fake_pid_p) | |
750 | return 1; | |
751 | ||
d1794952 | 752 | xsnprintf (mapsfilename, sizeof mapsfilename, |
4f69f4c2 | 753 | "/proc/%d/smaps", current_inferior ()->pid); |
d1794952 | 754 | data = target_fileio_read_stralloc (mapsfilename); |
4f69f4c2 JK |
755 | if (data == NULL) |
756 | { | |
757 | /* Older Linux kernels did not support /proc/PID/smaps. */ | |
d1794952 | 758 | xsnprintf (mapsfilename, sizeof mapsfilename, |
4f69f4c2 | 759 | "/proc/%d/maps", current_inferior ()->pid); |
d1794952 | 760 | data = target_fileio_read_stralloc (mapsfilename); |
4f69f4c2 | 761 | } |
35c2fab7 UW |
762 | if (data) |
763 | { | |
764 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
765 | char *line; | |
766 | ||
4f69f4c2 JK |
767 | line = strtok (data, "\n"); |
768 | while (line) | |
35c2fab7 UW |
769 | { |
770 | ULONGEST addr, endaddr, offset, inode; | |
771 | const char *permissions, *device, *filename; | |
772 | size_t permissions_len, device_len; | |
773 | int read, write, exec; | |
4f69f4c2 | 774 | int modified = 0, has_anonymous = 0; |
35c2fab7 UW |
775 | |
776 | read_mapping (line, &addr, &endaddr, &permissions, &permissions_len, | |
777 | &offset, &device, &device_len, &inode, &filename); | |
778 | ||
779 | /* Decode permissions. */ | |
780 | read = (memchr (permissions, 'r', permissions_len) != 0); | |
781 | write = (memchr (permissions, 'w', permissions_len) != 0); | |
782 | exec = (memchr (permissions, 'x', permissions_len) != 0); | |
783 | ||
4f69f4c2 JK |
784 | /* Try to detect if region was modified by parsing smaps counters. */ |
785 | for (line = strtok (NULL, "\n"); | |
786 | line && line[0] >= 'A' && line[0] <= 'Z'; | |
787 | line = strtok (NULL, "\n")) | |
788 | { | |
789 | char keyword[64 + 1]; | |
4f69f4c2 | 790 | |
9ead1b84 | 791 | if (sscanf (line, "%64s", keyword) != 1) |
4f69f4c2 | 792 | { |
d1794952 | 793 | warning (_("Error parsing {s,}maps file '%s'"), mapsfilename); |
4f69f4c2 JK |
794 | break; |
795 | } | |
796 | if (strcmp (keyword, "Anonymous:") == 0) | |
797 | has_anonymous = 1; | |
9ead1b84 JK |
798 | if (strcmp (keyword, "Shared_Dirty:") == 0 |
799 | || strcmp (keyword, "Private_Dirty:") == 0 | |
800 | || strcmp (keyword, "Swap:") == 0 | |
801 | || strcmp (keyword, "Anonymous:") == 0) | |
802 | { | |
803 | unsigned long number; | |
804 | ||
805 | if (sscanf (line, "%*s%lu", &number) != 1) | |
806 | { | |
807 | warning (_("Error parsing {s,}maps file '%s' number"), | |
808 | mapsfilename); | |
809 | break; | |
810 | } | |
811 | if (number != 0) | |
812 | modified = 1; | |
813 | } | |
4f69f4c2 JK |
814 | } |
815 | ||
816 | /* Older Linux kernels did not support the "Anonymous:" counter. | |
817 | If it is missing, we can't be sure - dump all the pages. */ | |
818 | if (!has_anonymous) | |
819 | modified = 1; | |
820 | ||
35c2fab7 | 821 | /* Invoke the callback function to create the corefile segment. */ |
451b7c33 TT |
822 | func (addr, endaddr - addr, offset, inode, |
823 | read, write, exec, modified, filename, obfd); | |
35c2fab7 UW |
824 | } |
825 | ||
826 | do_cleanups (cleanup); | |
827 | return 0; | |
828 | } | |
829 | ||
830 | return 1; | |
831 | } | |
832 | ||
451b7c33 TT |
833 | /* A structure for passing information through |
834 | linux_find_memory_regions_full. */ | |
835 | ||
836 | struct linux_find_memory_regions_data | |
837 | { | |
838 | /* The original callback. */ | |
839 | ||
840 | find_memory_region_ftype func; | |
841 | ||
842 | /* The original datum. */ | |
843 | ||
844 | void *obfd; | |
845 | }; | |
846 | ||
847 | /* A callback for linux_find_memory_regions that converts between the | |
848 | "full"-style callback and find_memory_region_ftype. */ | |
849 | ||
850 | static int | |
851 | linux_find_memory_regions_thunk (ULONGEST vaddr, ULONGEST size, | |
852 | ULONGEST offset, ULONGEST inode, | |
853 | int read, int write, int exec, int modified, | |
854 | const char *filename, void *arg) | |
855 | { | |
856 | struct linux_find_memory_regions_data *data = arg; | |
857 | ||
858 | return data->func (vaddr, size, read, write, exec, modified, data->obfd); | |
859 | } | |
860 | ||
861 | /* A variant of linux_find_memory_regions_full that is suitable as the | |
862 | gdbarch find_memory_regions method. */ | |
863 | ||
864 | static int | |
865 | linux_find_memory_regions (struct gdbarch *gdbarch, | |
866 | find_memory_region_ftype func, void *obfd) | |
867 | { | |
868 | struct linux_find_memory_regions_data data; | |
869 | ||
870 | data.func = func; | |
871 | data.obfd = obfd; | |
872 | ||
873 | return linux_find_memory_regions_full (gdbarch, | |
874 | linux_find_memory_regions_thunk, | |
875 | &data); | |
876 | } | |
877 | ||
6432734d UW |
878 | /* Determine which signal stopped execution. */ |
879 | ||
880 | static int | |
881 | find_signalled_thread (struct thread_info *info, void *data) | |
882 | { | |
a493e3e2 | 883 | if (info->suspend.stop_signal != GDB_SIGNAL_0 |
6432734d UW |
884 | && ptid_get_pid (info->ptid) == ptid_get_pid (inferior_ptid)) |
885 | return 1; | |
886 | ||
887 | return 0; | |
888 | } | |
889 | ||
2ea28649 | 890 | static enum gdb_signal |
6432734d UW |
891 | find_stop_signal (void) |
892 | { | |
893 | struct thread_info *info = | |
894 | iterate_over_threads (find_signalled_thread, NULL); | |
895 | ||
896 | if (info) | |
897 | return info->suspend.stop_signal; | |
898 | else | |
a493e3e2 | 899 | return GDB_SIGNAL_0; |
6432734d UW |
900 | } |
901 | ||
902 | /* Generate corefile notes for SPU contexts. */ | |
903 | ||
904 | static char * | |
905 | linux_spu_make_corefile_notes (bfd *obfd, char *note_data, int *note_size) | |
906 | { | |
907 | static const char *spu_files[] = | |
908 | { | |
909 | "object-id", | |
910 | "mem", | |
911 | "regs", | |
912 | "fpcr", | |
913 | "lslr", | |
914 | "decr", | |
915 | "decr_status", | |
916 | "signal1", | |
917 | "signal1_type", | |
918 | "signal2", | |
919 | "signal2_type", | |
920 | "event_mask", | |
921 | "event_status", | |
922 | "mbox_info", | |
923 | "ibox_info", | |
924 | "wbox_info", | |
925 | "dma_info", | |
926 | "proxydma_info", | |
927 | }; | |
928 | ||
f5656ead | 929 | enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ()); |
6432734d UW |
930 | gdb_byte *spu_ids; |
931 | LONGEST i, j, size; | |
932 | ||
933 | /* Determine list of SPU ids. */ | |
934 | size = target_read_alloc (¤t_target, TARGET_OBJECT_SPU, | |
935 | NULL, &spu_ids); | |
936 | ||
937 | /* Generate corefile notes for each SPU file. */ | |
938 | for (i = 0; i < size; i += 4) | |
939 | { | |
940 | int fd = extract_unsigned_integer (spu_ids + i, 4, byte_order); | |
941 | ||
942 | for (j = 0; j < sizeof (spu_files) / sizeof (spu_files[0]); j++) | |
943 | { | |
944 | char annex[32], note_name[32]; | |
945 | gdb_byte *spu_data; | |
946 | LONGEST spu_len; | |
947 | ||
948 | xsnprintf (annex, sizeof annex, "%d/%s", fd, spu_files[j]); | |
949 | spu_len = target_read_alloc (¤t_target, TARGET_OBJECT_SPU, | |
950 | annex, &spu_data); | |
951 | if (spu_len > 0) | |
952 | { | |
953 | xsnprintf (note_name, sizeof note_name, "SPU/%s", annex); | |
954 | note_data = elfcore_write_note (obfd, note_data, note_size, | |
955 | note_name, NT_SPU, | |
956 | spu_data, spu_len); | |
957 | xfree (spu_data); | |
958 | ||
959 | if (!note_data) | |
960 | { | |
961 | xfree (spu_ids); | |
962 | return NULL; | |
963 | } | |
964 | } | |
965 | } | |
966 | } | |
967 | ||
968 | if (size > 0) | |
969 | xfree (spu_ids); | |
970 | ||
971 | return note_data; | |
972 | } | |
973 | ||
451b7c33 TT |
974 | /* This is used to pass information from |
975 | linux_make_mappings_corefile_notes through | |
976 | linux_find_memory_regions_full. */ | |
977 | ||
978 | struct linux_make_mappings_data | |
979 | { | |
980 | /* Number of files mapped. */ | |
981 | ULONGEST file_count; | |
982 | ||
983 | /* The obstack for the main part of the data. */ | |
984 | struct obstack *data_obstack; | |
985 | ||
986 | /* The filename obstack. */ | |
987 | struct obstack *filename_obstack; | |
988 | ||
989 | /* The architecture's "long" type. */ | |
990 | struct type *long_type; | |
991 | }; | |
992 | ||
993 | static linux_find_memory_region_ftype linux_make_mappings_callback; | |
994 | ||
995 | /* A callback for linux_find_memory_regions_full that updates the | |
996 | mappings data for linux_make_mappings_corefile_notes. */ | |
997 | ||
998 | static int | |
999 | linux_make_mappings_callback (ULONGEST vaddr, ULONGEST size, | |
1000 | ULONGEST offset, ULONGEST inode, | |
1001 | int read, int write, int exec, int modified, | |
1002 | const char *filename, void *data) | |
1003 | { | |
1004 | struct linux_make_mappings_data *map_data = data; | |
1005 | gdb_byte buf[sizeof (ULONGEST)]; | |
1006 | ||
1007 | if (*filename == '\0' || inode == 0) | |
1008 | return 0; | |
1009 | ||
1010 | ++map_data->file_count; | |
1011 | ||
1012 | pack_long (buf, map_data->long_type, vaddr); | |
1013 | obstack_grow (map_data->data_obstack, buf, TYPE_LENGTH (map_data->long_type)); | |
1014 | pack_long (buf, map_data->long_type, vaddr + size); | |
1015 | obstack_grow (map_data->data_obstack, buf, TYPE_LENGTH (map_data->long_type)); | |
1016 | pack_long (buf, map_data->long_type, offset); | |
1017 | obstack_grow (map_data->data_obstack, buf, TYPE_LENGTH (map_data->long_type)); | |
1018 | ||
1019 | obstack_grow_str0 (map_data->filename_obstack, filename); | |
1020 | ||
1021 | return 0; | |
1022 | } | |
1023 | ||
1024 | /* Write the file mapping data to the core file, if possible. OBFD is | |
1025 | the output BFD. NOTE_DATA is the current note data, and NOTE_SIZE | |
1026 | is a pointer to the note size. Returns the new NOTE_DATA and | |
1027 | updates NOTE_SIZE. */ | |
1028 | ||
1029 | static char * | |
1030 | linux_make_mappings_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, | |
1031 | char *note_data, int *note_size) | |
1032 | { | |
1033 | struct cleanup *cleanup; | |
1034 | struct obstack data_obstack, filename_obstack; | |
1035 | struct linux_make_mappings_data mapping_data; | |
1036 | struct type *long_type | |
1037 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), 0, "long"); | |
1038 | gdb_byte buf[sizeof (ULONGEST)]; | |
1039 | ||
1040 | obstack_init (&data_obstack); | |
1041 | cleanup = make_cleanup_obstack_free (&data_obstack); | |
1042 | obstack_init (&filename_obstack); | |
1043 | make_cleanup_obstack_free (&filename_obstack); | |
1044 | ||
1045 | mapping_data.file_count = 0; | |
1046 | mapping_data.data_obstack = &data_obstack; | |
1047 | mapping_data.filename_obstack = &filename_obstack; | |
1048 | mapping_data.long_type = long_type; | |
1049 | ||
1050 | /* Reserve space for the count. */ | |
1051 | obstack_blank (&data_obstack, TYPE_LENGTH (long_type)); | |
1052 | /* We always write the page size as 1 since we have no good way to | |
1053 | determine the correct value. */ | |
1054 | pack_long (buf, long_type, 1); | |
1055 | obstack_grow (&data_obstack, buf, TYPE_LENGTH (long_type)); | |
1056 | ||
1057 | linux_find_memory_regions_full (gdbarch, linux_make_mappings_callback, | |
1058 | &mapping_data); | |
1059 | ||
1060 | if (mapping_data.file_count != 0) | |
1061 | { | |
1062 | /* Write the count to the obstack. */ | |
51a5cd90 PA |
1063 | pack_long ((gdb_byte *) obstack_base (&data_obstack), |
1064 | long_type, mapping_data.file_count); | |
451b7c33 TT |
1065 | |
1066 | /* Copy the filenames to the data obstack. */ | |
1067 | obstack_grow (&data_obstack, obstack_base (&filename_obstack), | |
1068 | obstack_object_size (&filename_obstack)); | |
1069 | ||
1070 | note_data = elfcore_write_note (obfd, note_data, note_size, | |
1071 | "CORE", NT_FILE, | |
1072 | obstack_base (&data_obstack), | |
1073 | obstack_object_size (&data_obstack)); | |
1074 | } | |
1075 | ||
1076 | do_cleanups (cleanup); | |
1077 | return note_data; | |
1078 | } | |
1079 | ||
6432734d UW |
1080 | /* Records the thread's register state for the corefile note |
1081 | section. */ | |
1082 | ||
1083 | static char * | |
1084 | linux_collect_thread_registers (const struct regcache *regcache, | |
1085 | ptid_t ptid, bfd *obfd, | |
1086 | char *note_data, int *note_size, | |
2ea28649 | 1087 | enum gdb_signal stop_signal) |
6432734d UW |
1088 | { |
1089 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
1090 | struct core_regset_section *sect_list; | |
1091 | unsigned long lwp; | |
1092 | ||
1093 | sect_list = gdbarch_core_regset_sections (gdbarch); | |
1094 | gdb_assert (sect_list); | |
1095 | ||
1096 | /* For remote targets the LWP may not be available, so use the TID. */ | |
1097 | lwp = ptid_get_lwp (ptid); | |
1098 | if (!lwp) | |
1099 | lwp = ptid_get_tid (ptid); | |
1100 | ||
1101 | while (sect_list->sect_name != NULL) | |
1102 | { | |
1103 | const struct regset *regset; | |
1104 | char *buf; | |
1105 | ||
1106 | regset = gdbarch_regset_from_core_section (gdbarch, | |
1107 | sect_list->sect_name, | |
1108 | sect_list->size); | |
1109 | gdb_assert (regset && regset->collect_regset); | |
1110 | ||
1111 | buf = xmalloc (sect_list->size); | |
1112 | regset->collect_regset (regset, regcache, -1, buf, sect_list->size); | |
1113 | ||
1114 | /* PRSTATUS still needs to be treated specially. */ | |
1115 | if (strcmp (sect_list->sect_name, ".reg") == 0) | |
1116 | note_data = (char *) elfcore_write_prstatus | |
1117 | (obfd, note_data, note_size, lwp, | |
2ea28649 | 1118 | gdb_signal_to_host (stop_signal), buf); |
6432734d UW |
1119 | else |
1120 | note_data = (char *) elfcore_write_register_note | |
1121 | (obfd, note_data, note_size, | |
1122 | sect_list->sect_name, buf, sect_list->size); | |
1123 | xfree (buf); | |
1124 | sect_list++; | |
1125 | ||
1126 | if (!note_data) | |
1127 | return NULL; | |
1128 | } | |
1129 | ||
1130 | return note_data; | |
1131 | } | |
1132 | ||
9015683b TT |
1133 | /* Fetch the siginfo data for the current thread, if it exists. If |
1134 | there is no data, or we could not read it, return NULL. Otherwise, | |
1135 | return a newly malloc'd buffer holding the data and fill in *SIZE | |
1136 | with the size of the data. The caller is responsible for freeing | |
1137 | the data. */ | |
1138 | ||
1139 | static gdb_byte * | |
1140 | linux_get_siginfo_data (struct gdbarch *gdbarch, LONGEST *size) | |
1141 | { | |
1142 | struct type *siginfo_type; | |
1143 | gdb_byte *buf; | |
1144 | LONGEST bytes_read; | |
1145 | struct cleanup *cleanups; | |
1146 | ||
1147 | if (!gdbarch_get_siginfo_type_p (gdbarch)) | |
1148 | return NULL; | |
1149 | ||
1150 | siginfo_type = gdbarch_get_siginfo_type (gdbarch); | |
1151 | ||
1152 | buf = xmalloc (TYPE_LENGTH (siginfo_type)); | |
1153 | cleanups = make_cleanup (xfree, buf); | |
1154 | ||
1155 | bytes_read = target_read (¤t_target, TARGET_OBJECT_SIGNAL_INFO, NULL, | |
1156 | buf, 0, TYPE_LENGTH (siginfo_type)); | |
1157 | if (bytes_read == TYPE_LENGTH (siginfo_type)) | |
1158 | { | |
1159 | discard_cleanups (cleanups); | |
1160 | *size = bytes_read; | |
1161 | } | |
1162 | else | |
1163 | { | |
1164 | do_cleanups (cleanups); | |
1165 | buf = NULL; | |
1166 | } | |
1167 | ||
1168 | return buf; | |
1169 | } | |
1170 | ||
6432734d UW |
1171 | struct linux_corefile_thread_data |
1172 | { | |
1173 | struct gdbarch *gdbarch; | |
1174 | int pid; | |
1175 | bfd *obfd; | |
1176 | char *note_data; | |
1177 | int *note_size; | |
2ea28649 | 1178 | enum gdb_signal stop_signal; |
6432734d UW |
1179 | linux_collect_thread_registers_ftype collect; |
1180 | }; | |
1181 | ||
1182 | /* Called by gdbthread.c once per thread. Records the thread's | |
1183 | register state for the corefile note section. */ | |
1184 | ||
1185 | static int | |
1186 | linux_corefile_thread_callback (struct thread_info *info, void *data) | |
1187 | { | |
1188 | struct linux_corefile_thread_data *args = data; | |
1189 | ||
1190 | if (ptid_get_pid (info->ptid) == args->pid) | |
1191 | { | |
1192 | struct cleanup *old_chain; | |
1193 | struct regcache *regcache; | |
9015683b | 1194 | gdb_byte *siginfo_data; |
e17aaa33 | 1195 | LONGEST siginfo_size = 0; |
9015683b | 1196 | |
6432734d UW |
1197 | regcache = get_thread_arch_regcache (info->ptid, args->gdbarch); |
1198 | ||
1199 | old_chain = save_inferior_ptid (); | |
1200 | inferior_ptid = info->ptid; | |
1201 | target_fetch_registers (regcache, -1); | |
9015683b | 1202 | siginfo_data = linux_get_siginfo_data (args->gdbarch, &siginfo_size); |
6432734d UW |
1203 | do_cleanups (old_chain); |
1204 | ||
9015683b TT |
1205 | old_chain = make_cleanup (xfree, siginfo_data); |
1206 | ||
6432734d UW |
1207 | args->note_data = args->collect (regcache, info->ptid, args->obfd, |
1208 | args->note_data, args->note_size, | |
1209 | args->stop_signal); | |
9015683b | 1210 | |
bbe769cc MR |
1211 | /* Don't return anything if we got no register information above, |
1212 | such a core file is useless. */ | |
1213 | if (args->note_data != NULL) | |
1214 | if (siginfo_data != NULL) | |
9015683b TT |
1215 | args->note_data = elfcore_write_note (args->obfd, |
1216 | args->note_data, | |
1217 | args->note_size, | |
1218 | "CORE", NT_SIGINFO, | |
1219 | siginfo_data, siginfo_size); | |
9015683b TT |
1220 | |
1221 | do_cleanups (old_chain); | |
6432734d UW |
1222 | } |
1223 | ||
1224 | return !args->note_data; | |
1225 | } | |
1226 | ||
b3ac9c77 SDJ |
1227 | /* Fill the PRPSINFO structure with information about the process being |
1228 | debugged. Returns 1 in case of success, 0 for failures. Please note that | |
1229 | even if the structure cannot be entirely filled (e.g., GDB was unable to | |
1230 | gather information about the process UID/GID), this function will still | |
1231 | return 1 since some information was already recorded. It will only return | |
1232 | 0 iff nothing can be gathered. */ | |
1233 | ||
1234 | static int | |
1235 | linux_fill_prpsinfo (struct elf_internal_linux_prpsinfo *p) | |
1236 | { | |
1237 | /* The filename which we will use to obtain some info about the process. | |
1238 | We will basically use this to store the `/proc/PID/FILENAME' file. */ | |
1239 | char filename[100]; | |
1240 | /* The full name of the program which generated the corefile. */ | |
1241 | char *fname; | |
1242 | /* The basename of the executable. */ | |
1243 | const char *basename; | |
1244 | /* The arguments of the program. */ | |
1245 | char *psargs; | |
1246 | char *infargs; | |
1247 | /* The contents of `/proc/PID/stat' and `/proc/PID/status' files. */ | |
1248 | char *proc_stat, *proc_status; | |
1249 | /* Temporary buffer. */ | |
1250 | char *tmpstr; | |
1251 | /* The valid states of a process, according to the Linux kernel. */ | |
1252 | const char valid_states[] = "RSDTZW"; | |
1253 | /* The program state. */ | |
1254 | const char *prog_state; | |
1255 | /* The state of the process. */ | |
1256 | char pr_sname; | |
1257 | /* The PID of the program which generated the corefile. */ | |
1258 | pid_t pid; | |
1259 | /* Process flags. */ | |
1260 | unsigned int pr_flag; | |
1261 | /* Process nice value. */ | |
1262 | long pr_nice; | |
1263 | /* The number of fields read by `sscanf'. */ | |
1264 | int n_fields = 0; | |
1265 | /* Cleanups. */ | |
1266 | struct cleanup *c; | |
1267 | int i; | |
1268 | ||
1269 | gdb_assert (p != NULL); | |
1270 | ||
1271 | /* Obtaining PID and filename. */ | |
1272 | pid = ptid_get_pid (inferior_ptid); | |
1273 | xsnprintf (filename, sizeof (filename), "/proc/%d/cmdline", (int) pid); | |
1274 | fname = target_fileio_read_stralloc (filename); | |
1275 | ||
1276 | if (fname == NULL || *fname == '\0') | |
1277 | { | |
1278 | /* No program name was read, so we won't be able to retrieve more | |
1279 | information about the process. */ | |
1280 | xfree (fname); | |
1281 | return 0; | |
1282 | } | |
1283 | ||
1284 | c = make_cleanup (xfree, fname); | |
1285 | memset (p, 0, sizeof (*p)); | |
1286 | ||
1287 | /* Defining the PID. */ | |
1288 | p->pr_pid = pid; | |
1289 | ||
1290 | /* Copying the program name. Only the basename matters. */ | |
1291 | basename = lbasename (fname); | |
1292 | strncpy (p->pr_fname, basename, sizeof (p->pr_fname)); | |
1293 | p->pr_fname[sizeof (p->pr_fname) - 1] = '\0'; | |
1294 | ||
1295 | infargs = get_inferior_args (); | |
1296 | ||
1297 | psargs = xstrdup (fname); | |
1298 | if (infargs != NULL) | |
1299 | psargs = reconcat (psargs, psargs, " ", infargs, NULL); | |
1300 | ||
1301 | make_cleanup (xfree, psargs); | |
1302 | ||
1303 | strncpy (p->pr_psargs, psargs, sizeof (p->pr_psargs)); | |
1304 | p->pr_psargs[sizeof (p->pr_psargs) - 1] = '\0'; | |
1305 | ||
1306 | xsnprintf (filename, sizeof (filename), "/proc/%d/stat", (int) pid); | |
1307 | proc_stat = target_fileio_read_stralloc (filename); | |
1308 | make_cleanup (xfree, proc_stat); | |
1309 | ||
1310 | if (proc_stat == NULL || *proc_stat == '\0') | |
1311 | { | |
1312 | /* Despite being unable to read more information about the | |
1313 | process, we return 1 here because at least we have its | |
1314 | command line, PID and arguments. */ | |
1315 | do_cleanups (c); | |
1316 | return 1; | |
1317 | } | |
1318 | ||
1319 | /* Ok, we have the stats. It's time to do a little parsing of the | |
1320 | contents of the buffer, so that we end up reading what we want. | |
1321 | ||
1322 | The following parsing mechanism is strongly based on the | |
1323 | information generated by the `fs/proc/array.c' file, present in | |
1324 | the Linux kernel tree. More details about how the information is | |
1325 | displayed can be obtained by seeing the manpage of proc(5), | |
1326 | specifically under the entry of `/proc/[pid]/stat'. */ | |
1327 | ||
1328 | /* Getting rid of the PID, since we already have it. */ | |
1329 | while (isdigit (*proc_stat)) | |
1330 | ++proc_stat; | |
1331 | ||
1332 | proc_stat = skip_spaces (proc_stat); | |
1333 | ||
1334 | /* Getting rid of the executable name, since we already have it. We | |
1335 | know that this name will be in parentheses, so we can safely look | |
1336 | for the close-paren. */ | |
1337 | while (*proc_stat != ')') | |
1338 | ++proc_stat; | |
1339 | ++proc_stat; | |
1340 | ||
1341 | proc_stat = skip_spaces (proc_stat); | |
1342 | ||
1343 | n_fields = sscanf (proc_stat, | |
1344 | "%c" /* Process state. */ | |
1345 | "%d%d%d" /* Parent PID, group ID, session ID. */ | |
1346 | "%*d%*d" /* tty_nr, tpgid (not used). */ | |
1347 | "%u" /* Flags. */ | |
1348 | "%*s%*s%*s%*s" /* minflt, cminflt, majflt, | |
1349 | cmajflt (not used). */ | |
1350 | "%*s%*s%*s%*s" /* utime, stime, cutime, | |
1351 | cstime (not used). */ | |
1352 | "%*s" /* Priority (not used). */ | |
1353 | "%ld", /* Nice. */ | |
1354 | &pr_sname, | |
1355 | &p->pr_ppid, &p->pr_pgrp, &p->pr_sid, | |
1356 | &pr_flag, | |
1357 | &pr_nice); | |
1358 | ||
1359 | if (n_fields != 6) | |
1360 | { | |
1361 | /* Again, we couldn't read the complementary information about | |
1362 | the process state. However, we already have minimal | |
1363 | information, so we just return 1 here. */ | |
1364 | do_cleanups (c); | |
1365 | return 1; | |
1366 | } | |
1367 | ||
1368 | /* Filling the structure fields. */ | |
1369 | prog_state = strchr (valid_states, pr_sname); | |
1370 | if (prog_state != NULL) | |
1371 | p->pr_state = prog_state - valid_states; | |
1372 | else | |
1373 | { | |
1374 | /* Zero means "Running". */ | |
1375 | p->pr_state = 0; | |
1376 | } | |
1377 | ||
1378 | p->pr_sname = p->pr_state > 5 ? '.' : pr_sname; | |
1379 | p->pr_zomb = p->pr_sname == 'Z'; | |
1380 | p->pr_nice = pr_nice; | |
1381 | p->pr_flag = pr_flag; | |
1382 | ||
1383 | /* Finally, obtaining the UID and GID. For that, we read and parse the | |
1384 | contents of the `/proc/PID/status' file. */ | |
1385 | xsnprintf (filename, sizeof (filename), "/proc/%d/status", (int) pid); | |
1386 | proc_status = target_fileio_read_stralloc (filename); | |
1387 | make_cleanup (xfree, proc_status); | |
1388 | ||
1389 | if (proc_status == NULL || *proc_status == '\0') | |
1390 | { | |
1391 | /* Returning 1 since we already have a bunch of information. */ | |
1392 | do_cleanups (c); | |
1393 | return 1; | |
1394 | } | |
1395 | ||
1396 | /* Extracting the UID. */ | |
1397 | tmpstr = strstr (proc_status, "Uid:"); | |
1398 | if (tmpstr != NULL) | |
1399 | { | |
1400 | /* Advancing the pointer to the beginning of the UID. */ | |
1401 | tmpstr += sizeof ("Uid:"); | |
1402 | while (*tmpstr != '\0' && !isdigit (*tmpstr)) | |
1403 | ++tmpstr; | |
1404 | ||
1405 | if (isdigit (*tmpstr)) | |
1406 | p->pr_uid = strtol (tmpstr, &tmpstr, 10); | |
1407 | } | |
1408 | ||
1409 | /* Extracting the GID. */ | |
1410 | tmpstr = strstr (proc_status, "Gid:"); | |
1411 | if (tmpstr != NULL) | |
1412 | { | |
1413 | /* Advancing the pointer to the beginning of the GID. */ | |
1414 | tmpstr += sizeof ("Gid:"); | |
1415 | while (*tmpstr != '\0' && !isdigit (*tmpstr)) | |
1416 | ++tmpstr; | |
1417 | ||
1418 | if (isdigit (*tmpstr)) | |
1419 | p->pr_gid = strtol (tmpstr, &tmpstr, 10); | |
1420 | } | |
1421 | ||
1422 | do_cleanups (c); | |
1423 | ||
1424 | return 1; | |
1425 | } | |
1426 | ||
6432734d UW |
1427 | /* Fills the "to_make_corefile_note" target vector. Builds the note |
1428 | section for a corefile, and returns it in a malloc buffer. */ | |
1429 | ||
1430 | char * | |
1431 | linux_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size, | |
1432 | linux_collect_thread_registers_ftype collect) | |
1433 | { | |
1434 | struct linux_corefile_thread_data thread_args; | |
b3ac9c77 | 1435 | struct elf_internal_linux_prpsinfo prpsinfo; |
6432734d UW |
1436 | char *note_data = NULL; |
1437 | gdb_byte *auxv; | |
1438 | int auxv_len; | |
1439 | ||
b3ac9c77 | 1440 | if (linux_fill_prpsinfo (&prpsinfo)) |
6432734d | 1441 | { |
b3ac9c77 SDJ |
1442 | if (gdbarch_elfcore_write_linux_prpsinfo_p (gdbarch)) |
1443 | { | |
1444 | note_data = gdbarch_elfcore_write_linux_prpsinfo (gdbarch, obfd, | |
1445 | note_data, note_size, | |
1446 | &prpsinfo); | |
1447 | } | |
1448 | else | |
1449 | { | |
1450 | if (gdbarch_ptr_bit (gdbarch) == 64) | |
1451 | note_data = elfcore_write_linux_prpsinfo64 (obfd, | |
1452 | note_data, note_size, | |
1453 | &prpsinfo); | |
1454 | else | |
1455 | note_data = elfcore_write_linux_prpsinfo32 (obfd, | |
1456 | note_data, note_size, | |
1457 | &prpsinfo); | |
1458 | } | |
6432734d UW |
1459 | } |
1460 | ||
1461 | /* Thread register information. */ | |
1462 | thread_args.gdbarch = gdbarch; | |
1463 | thread_args.pid = ptid_get_pid (inferior_ptid); | |
1464 | thread_args.obfd = obfd; | |
1465 | thread_args.note_data = note_data; | |
1466 | thread_args.note_size = note_size; | |
6432734d UW |
1467 | thread_args.stop_signal = find_stop_signal (); |
1468 | thread_args.collect = collect; | |
1469 | iterate_over_threads (linux_corefile_thread_callback, &thread_args); | |
1470 | note_data = thread_args.note_data; | |
1471 | if (!note_data) | |
1472 | return NULL; | |
1473 | ||
1474 | /* Auxillary vector. */ | |
1475 | auxv_len = target_read_alloc (¤t_target, TARGET_OBJECT_AUXV, | |
1476 | NULL, &auxv); | |
1477 | if (auxv_len > 0) | |
1478 | { | |
1479 | note_data = elfcore_write_note (obfd, note_data, note_size, | |
1480 | "CORE", NT_AUXV, auxv, auxv_len); | |
1481 | xfree (auxv); | |
1482 | ||
1483 | if (!note_data) | |
1484 | return NULL; | |
1485 | } | |
1486 | ||
1487 | /* SPU information. */ | |
1488 | note_data = linux_spu_make_corefile_notes (obfd, note_data, note_size); | |
1489 | if (!note_data) | |
1490 | return NULL; | |
1491 | ||
451b7c33 TT |
1492 | /* File mappings. */ |
1493 | note_data = linux_make_mappings_corefile_notes (gdbarch, obfd, | |
1494 | note_data, note_size); | |
1495 | ||
6432734d UW |
1496 | make_cleanup (xfree, note_data); |
1497 | return note_data; | |
1498 | } | |
1499 | ||
1500 | static char * | |
1501 | linux_make_corefile_notes_1 (struct gdbarch *gdbarch, bfd *obfd, int *note_size) | |
1502 | { | |
1503 | /* FIXME: uweigand/2011-10-06: Once all GNU/Linux architectures have been | |
1504 | converted to gdbarch_core_regset_sections, we no longer need to fall back | |
1505 | to the target method at this point. */ | |
1506 | ||
1507 | if (!gdbarch_core_regset_sections (gdbarch)) | |
1508 | return target_make_corefile_notes (obfd, note_size); | |
1509 | else | |
1510 | return linux_make_corefile_notes (gdbarch, obfd, note_size, | |
1511 | linux_collect_thread_registers); | |
1512 | } | |
1513 | ||
eb14d406 SDJ |
1514 | /* Implementation of `gdbarch_gdb_signal_from_target', as defined in |
1515 | gdbarch.h. This function is not static because it is exported to | |
1516 | other -tdep files. */ | |
1517 | ||
1518 | enum gdb_signal | |
1519 | linux_gdb_signal_from_target (struct gdbarch *gdbarch, int signal) | |
1520 | { | |
1521 | switch (signal) | |
1522 | { | |
1523 | case 0: | |
1524 | return GDB_SIGNAL_0; | |
1525 | ||
1526 | case LINUX_SIGHUP: | |
1527 | return GDB_SIGNAL_HUP; | |
1528 | ||
1529 | case LINUX_SIGINT: | |
1530 | return GDB_SIGNAL_INT; | |
1531 | ||
1532 | case LINUX_SIGQUIT: | |
1533 | return GDB_SIGNAL_QUIT; | |
1534 | ||
1535 | case LINUX_SIGILL: | |
1536 | return GDB_SIGNAL_ILL; | |
1537 | ||
1538 | case LINUX_SIGTRAP: | |
1539 | return GDB_SIGNAL_TRAP; | |
1540 | ||
1541 | case LINUX_SIGABRT: | |
1542 | return GDB_SIGNAL_ABRT; | |
1543 | ||
1544 | case LINUX_SIGBUS: | |
1545 | return GDB_SIGNAL_BUS; | |
1546 | ||
1547 | case LINUX_SIGFPE: | |
1548 | return GDB_SIGNAL_FPE; | |
1549 | ||
1550 | case LINUX_SIGKILL: | |
1551 | return GDB_SIGNAL_KILL; | |
1552 | ||
1553 | case LINUX_SIGUSR1: | |
1554 | return GDB_SIGNAL_USR1; | |
1555 | ||
1556 | case LINUX_SIGSEGV: | |
1557 | return GDB_SIGNAL_SEGV; | |
1558 | ||
1559 | case LINUX_SIGUSR2: | |
1560 | return GDB_SIGNAL_USR2; | |
1561 | ||
1562 | case LINUX_SIGPIPE: | |
1563 | return GDB_SIGNAL_PIPE; | |
1564 | ||
1565 | case LINUX_SIGALRM: | |
1566 | return GDB_SIGNAL_ALRM; | |
1567 | ||
1568 | case LINUX_SIGTERM: | |
1569 | return GDB_SIGNAL_TERM; | |
1570 | ||
1571 | case LINUX_SIGCHLD: | |
1572 | return GDB_SIGNAL_CHLD; | |
1573 | ||
1574 | case LINUX_SIGCONT: | |
1575 | return GDB_SIGNAL_CONT; | |
1576 | ||
1577 | case LINUX_SIGSTOP: | |
1578 | return GDB_SIGNAL_STOP; | |
1579 | ||
1580 | case LINUX_SIGTSTP: | |
1581 | return GDB_SIGNAL_TSTP; | |
1582 | ||
1583 | case LINUX_SIGTTIN: | |
1584 | return GDB_SIGNAL_TTIN; | |
1585 | ||
1586 | case LINUX_SIGTTOU: | |
1587 | return GDB_SIGNAL_TTOU; | |
1588 | ||
1589 | case LINUX_SIGURG: | |
1590 | return GDB_SIGNAL_URG; | |
1591 | ||
1592 | case LINUX_SIGXCPU: | |
1593 | return GDB_SIGNAL_XCPU; | |
1594 | ||
1595 | case LINUX_SIGXFSZ: | |
1596 | return GDB_SIGNAL_XFSZ; | |
1597 | ||
1598 | case LINUX_SIGVTALRM: | |
1599 | return GDB_SIGNAL_VTALRM; | |
1600 | ||
1601 | case LINUX_SIGPROF: | |
1602 | return GDB_SIGNAL_PROF; | |
1603 | ||
1604 | case LINUX_SIGWINCH: | |
1605 | return GDB_SIGNAL_WINCH; | |
1606 | ||
1607 | /* No way to differentiate between SIGIO and SIGPOLL. | |
1608 | Therefore, we just handle the first one. */ | |
1609 | case LINUX_SIGIO: | |
1610 | return GDB_SIGNAL_IO; | |
1611 | ||
1612 | case LINUX_SIGPWR: | |
1613 | return GDB_SIGNAL_PWR; | |
1614 | ||
1615 | case LINUX_SIGSYS: | |
1616 | return GDB_SIGNAL_SYS; | |
1617 | ||
1618 | /* SIGRTMIN and SIGRTMAX are not continuous in <gdb/signals.def>, | |
1619 | therefore we have to handle them here. */ | |
1620 | case LINUX_SIGRTMIN: | |
1621 | return GDB_SIGNAL_REALTIME_32; | |
1622 | ||
1623 | case LINUX_SIGRTMAX: | |
1624 | return GDB_SIGNAL_REALTIME_64; | |
1625 | } | |
1626 | ||
1627 | if (signal >= LINUX_SIGRTMIN + 1 && signal <= LINUX_SIGRTMAX - 1) | |
1628 | { | |
1629 | int offset = signal - LINUX_SIGRTMIN + 1; | |
1630 | ||
1631 | return (enum gdb_signal) ((int) GDB_SIGNAL_REALTIME_33 + offset); | |
1632 | } | |
1633 | ||
1634 | return GDB_SIGNAL_UNKNOWN; | |
1635 | } | |
1636 | ||
1637 | /* Implementation of `gdbarch_gdb_signal_to_target', as defined in | |
1638 | gdbarch.h. This function is not static because it is exported to | |
1639 | other -tdep files. */ | |
1640 | ||
1641 | int | |
1642 | linux_gdb_signal_to_target (struct gdbarch *gdbarch, | |
1643 | enum gdb_signal signal) | |
1644 | { | |
1645 | switch (signal) | |
1646 | { | |
1647 | case GDB_SIGNAL_0: | |
1648 | return 0; | |
1649 | ||
1650 | case GDB_SIGNAL_HUP: | |
1651 | return LINUX_SIGHUP; | |
1652 | ||
1653 | case GDB_SIGNAL_INT: | |
1654 | return LINUX_SIGINT; | |
1655 | ||
1656 | case GDB_SIGNAL_QUIT: | |
1657 | return LINUX_SIGQUIT; | |
1658 | ||
1659 | case GDB_SIGNAL_ILL: | |
1660 | return LINUX_SIGILL; | |
1661 | ||
1662 | case GDB_SIGNAL_TRAP: | |
1663 | return LINUX_SIGTRAP; | |
1664 | ||
1665 | case GDB_SIGNAL_ABRT: | |
1666 | return LINUX_SIGABRT; | |
1667 | ||
1668 | case GDB_SIGNAL_FPE: | |
1669 | return LINUX_SIGFPE; | |
1670 | ||
1671 | case GDB_SIGNAL_KILL: | |
1672 | return LINUX_SIGKILL; | |
1673 | ||
1674 | case GDB_SIGNAL_BUS: | |
1675 | return LINUX_SIGBUS; | |
1676 | ||
1677 | case GDB_SIGNAL_SEGV: | |
1678 | return LINUX_SIGSEGV; | |
1679 | ||
1680 | case GDB_SIGNAL_SYS: | |
1681 | return LINUX_SIGSYS; | |
1682 | ||
1683 | case GDB_SIGNAL_PIPE: | |
1684 | return LINUX_SIGPIPE; | |
1685 | ||
1686 | case GDB_SIGNAL_ALRM: | |
1687 | return LINUX_SIGALRM; | |
1688 | ||
1689 | case GDB_SIGNAL_TERM: | |
1690 | return LINUX_SIGTERM; | |
1691 | ||
1692 | case GDB_SIGNAL_URG: | |
1693 | return LINUX_SIGURG; | |
1694 | ||
1695 | case GDB_SIGNAL_STOP: | |
1696 | return LINUX_SIGSTOP; | |
1697 | ||
1698 | case GDB_SIGNAL_TSTP: | |
1699 | return LINUX_SIGTSTP; | |
1700 | ||
1701 | case GDB_SIGNAL_CONT: | |
1702 | return LINUX_SIGCONT; | |
1703 | ||
1704 | case GDB_SIGNAL_CHLD: | |
1705 | return LINUX_SIGCHLD; | |
1706 | ||
1707 | case GDB_SIGNAL_TTIN: | |
1708 | return LINUX_SIGTTIN; | |
1709 | ||
1710 | case GDB_SIGNAL_TTOU: | |
1711 | return LINUX_SIGTTOU; | |
1712 | ||
1713 | case GDB_SIGNAL_IO: | |
1714 | return LINUX_SIGIO; | |
1715 | ||
1716 | case GDB_SIGNAL_XCPU: | |
1717 | return LINUX_SIGXCPU; | |
1718 | ||
1719 | case GDB_SIGNAL_XFSZ: | |
1720 | return LINUX_SIGXFSZ; | |
1721 | ||
1722 | case GDB_SIGNAL_VTALRM: | |
1723 | return LINUX_SIGVTALRM; | |
1724 | ||
1725 | case GDB_SIGNAL_PROF: | |
1726 | return LINUX_SIGPROF; | |
1727 | ||
1728 | case GDB_SIGNAL_WINCH: | |
1729 | return LINUX_SIGWINCH; | |
1730 | ||
1731 | case GDB_SIGNAL_USR1: | |
1732 | return LINUX_SIGUSR1; | |
1733 | ||
1734 | case GDB_SIGNAL_USR2: | |
1735 | return LINUX_SIGUSR2; | |
1736 | ||
1737 | case GDB_SIGNAL_PWR: | |
1738 | return LINUX_SIGPWR; | |
1739 | ||
1740 | case GDB_SIGNAL_POLL: | |
1741 | return LINUX_SIGPOLL; | |
1742 | ||
1743 | /* GDB_SIGNAL_REALTIME_32 is not continuous in <gdb/signals.def>, | |
1744 | therefore we have to handle it here. */ | |
1745 | case GDB_SIGNAL_REALTIME_32: | |
1746 | return LINUX_SIGRTMIN; | |
1747 | ||
1748 | /* Same comment applies to _64. */ | |
1749 | case GDB_SIGNAL_REALTIME_64: | |
1750 | return LINUX_SIGRTMAX; | |
1751 | } | |
1752 | ||
1753 | /* GDB_SIGNAL_REALTIME_33 to _64 are continuous. */ | |
1754 | if (signal >= GDB_SIGNAL_REALTIME_33 | |
1755 | && signal <= GDB_SIGNAL_REALTIME_63) | |
1756 | { | |
1757 | int offset = signal - GDB_SIGNAL_REALTIME_33; | |
1758 | ||
1759 | return LINUX_SIGRTMIN + 1 + offset; | |
1760 | } | |
1761 | ||
1762 | return -1; | |
1763 | } | |
1764 | ||
a5ee0f0c PA |
1765 | /* To be called from the various GDB_OSABI_LINUX handlers for the |
1766 | various GNU/Linux architectures and machine types. */ | |
1767 | ||
1768 | void | |
1769 | linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) | |
1770 | { | |
1771 | set_gdbarch_core_pid_to_str (gdbarch, linux_core_pid_to_str); | |
3030c96e | 1772 | set_gdbarch_info_proc (gdbarch, linux_info_proc); |
451b7c33 | 1773 | set_gdbarch_core_info_proc (gdbarch, linux_core_info_proc); |
35c2fab7 | 1774 | set_gdbarch_find_memory_regions (gdbarch, linux_find_memory_regions); |
6432734d | 1775 | set_gdbarch_make_corefile_notes (gdbarch, linux_make_corefile_notes_1); |
33fbcbee PA |
1776 | set_gdbarch_has_shared_address_space (gdbarch, |
1777 | linux_has_shared_address_space); | |
eb14d406 SDJ |
1778 | set_gdbarch_gdb_signal_from_target (gdbarch, |
1779 | linux_gdb_signal_from_target); | |
1780 | set_gdbarch_gdb_signal_to_target (gdbarch, | |
1781 | linux_gdb_signal_to_target); | |
a5ee0f0c | 1782 | } |
06253dd3 | 1783 | |
70221824 PA |
1784 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
1785 | extern initialize_file_ftype _initialize_linux_tdep; | |
1786 | ||
06253dd3 JK |
1787 | void |
1788 | _initialize_linux_tdep (void) | |
1789 | { | |
1790 | linux_gdbarch_data_handle = | |
1791 | gdbarch_data_register_post_init (init_linux_gdbarch_data); | |
1792 | } |