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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" | |
b3ac9c77 | 35 | #include "cli/cli-utils.h" |
3030c96e UW |
36 | |
37 | #include <ctype.h> | |
4aa995e1 | 38 | |
eb14d406 SDJ |
39 | /* This enum represents the signals' numbers on a generic architecture |
40 | running the Linux kernel. The definition of "generic" comes from | |
41 | the file <include/uapi/asm-generic/signal.h>, from the Linux kernel | |
42 | tree, which is the "de facto" implementation of signal numbers to | |
43 | be used by new architecture ports. | |
44 | ||
45 | For those architectures which have differences between the generic | |
46 | standard (e.g., Alpha), we define the different signals (and *only* | |
47 | those) in the specific target-dependent file (e.g., | |
48 | alpha-linux-tdep.c, for Alpha). Please refer to the architecture's | |
49 | tdep file for more information. | |
50 | ||
51 | ARM deserves a special mention here. On the file | |
52 | <arch/arm/include/uapi/asm/signal.h>, it defines only one different | |
53 | (and ARM-only) signal, which is SIGSWI, with the same number as | |
54 | SIGRTMIN. This signal is used only for a very specific target, | |
55 | called ArthurOS (from RISCOS). Therefore, we do not handle it on | |
56 | the ARM-tdep file, and we can safely use the generic signal handler | |
57 | here for ARM targets. | |
58 | ||
59 | As stated above, this enum is derived from | |
60 | <include/uapi/asm-generic/signal.h>, from the Linux kernel | |
61 | tree. */ | |
62 | ||
63 | enum | |
64 | { | |
65 | LINUX_SIGHUP = 1, | |
66 | LINUX_SIGINT = 2, | |
67 | LINUX_SIGQUIT = 3, | |
68 | LINUX_SIGILL = 4, | |
69 | LINUX_SIGTRAP = 5, | |
70 | LINUX_SIGABRT = 6, | |
71 | LINUX_SIGIOT = 6, | |
72 | LINUX_SIGBUS = 7, | |
73 | LINUX_SIGFPE = 8, | |
74 | LINUX_SIGKILL = 9, | |
75 | LINUX_SIGUSR1 = 10, | |
76 | LINUX_SIGSEGV = 11, | |
77 | LINUX_SIGUSR2 = 12, | |
78 | LINUX_SIGPIPE = 13, | |
79 | LINUX_SIGALRM = 14, | |
80 | LINUX_SIGTERM = 15, | |
81 | LINUX_SIGSTKFLT = 16, | |
82 | LINUX_SIGCHLD = 17, | |
83 | LINUX_SIGCONT = 18, | |
84 | LINUX_SIGSTOP = 19, | |
85 | LINUX_SIGTSTP = 20, | |
86 | LINUX_SIGTTIN = 21, | |
87 | LINUX_SIGTTOU = 22, | |
88 | LINUX_SIGURG = 23, | |
89 | LINUX_SIGXCPU = 24, | |
90 | LINUX_SIGXFSZ = 25, | |
91 | LINUX_SIGVTALRM = 26, | |
92 | LINUX_SIGPROF = 27, | |
93 | LINUX_SIGWINCH = 28, | |
94 | LINUX_SIGIO = 29, | |
95 | LINUX_SIGPOLL = LINUX_SIGIO, | |
96 | LINUX_SIGPWR = 30, | |
97 | LINUX_SIGSYS = 31, | |
98 | LINUX_SIGUNUSED = 31, | |
99 | ||
100 | LINUX_SIGRTMIN = 32, | |
101 | LINUX_SIGRTMAX = 64, | |
102 | }; | |
103 | ||
06253dd3 JK |
104 | static struct gdbarch_data *linux_gdbarch_data_handle; |
105 | ||
106 | struct linux_gdbarch_data | |
107 | { | |
108 | struct type *siginfo_type; | |
109 | }; | |
110 | ||
111 | static void * | |
112 | init_linux_gdbarch_data (struct gdbarch *gdbarch) | |
113 | { | |
114 | return GDBARCH_OBSTACK_ZALLOC (gdbarch, struct linux_gdbarch_data); | |
115 | } | |
116 | ||
117 | static struct linux_gdbarch_data * | |
118 | get_linux_gdbarch_data (struct gdbarch *gdbarch) | |
119 | { | |
120 | return gdbarch_data (gdbarch, linux_gdbarch_data_handle); | |
121 | } | |
122 | ||
4aa995e1 PA |
123 | /* This function is suitable for architectures that don't |
124 | extend/override the standard siginfo structure. */ | |
125 | ||
126 | struct type * | |
127 | linux_get_siginfo_type (struct gdbarch *gdbarch) | |
128 | { | |
06253dd3 | 129 | struct linux_gdbarch_data *linux_gdbarch_data; |
4aa995e1 PA |
130 | struct type *int_type, *uint_type, *long_type, *void_ptr_type; |
131 | struct type *uid_type, *pid_type; | |
132 | struct type *sigval_type, *clock_type; | |
133 | struct type *siginfo_type, *sifields_type; | |
134 | struct type *type; | |
135 | ||
06253dd3 JK |
136 | linux_gdbarch_data = get_linux_gdbarch_data (gdbarch); |
137 | if (linux_gdbarch_data->siginfo_type != NULL) | |
138 | return linux_gdbarch_data->siginfo_type; | |
139 | ||
e9bb382b UW |
140 | int_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), |
141 | 0, "int"); | |
142 | uint_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
143 | 1, "unsigned int"); | |
144 | long_type = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
145 | 0, "long"); | |
4aa995e1 PA |
146 | void_ptr_type = lookup_pointer_type (builtin_type (gdbarch)->builtin_void); |
147 | ||
148 | /* sival_t */ | |
e9bb382b | 149 | sigval_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION); |
4aa995e1 PA |
150 | TYPE_NAME (sigval_type) = xstrdup ("sigval_t"); |
151 | append_composite_type_field (sigval_type, "sival_int", int_type); | |
152 | append_composite_type_field (sigval_type, "sival_ptr", void_ptr_type); | |
153 | ||
154 | /* __pid_t */ | |
e3aa49af MS |
155 | pid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, |
156 | TYPE_LENGTH (int_type), "__pid_t"); | |
4aa995e1 | 157 | TYPE_TARGET_TYPE (pid_type) = int_type; |
e9bb382b | 158 | TYPE_TARGET_STUB (pid_type) = 1; |
4aa995e1 PA |
159 | |
160 | /* __uid_t */ | |
e3aa49af MS |
161 | uid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, |
162 | TYPE_LENGTH (uint_type), "__uid_t"); | |
4aa995e1 | 163 | TYPE_TARGET_TYPE (uid_type) = uint_type; |
e9bb382b | 164 | TYPE_TARGET_STUB (uid_type) = 1; |
4aa995e1 PA |
165 | |
166 | /* __clock_t */ | |
e3aa49af MS |
167 | clock_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, |
168 | TYPE_LENGTH (long_type), "__clock_t"); | |
4aa995e1 | 169 | TYPE_TARGET_TYPE (clock_type) = long_type; |
e9bb382b | 170 | TYPE_TARGET_STUB (clock_type) = 1; |
4aa995e1 PA |
171 | |
172 | /* _sifields */ | |
e9bb382b | 173 | sifields_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION); |
4aa995e1 PA |
174 | |
175 | { | |
176 | const int si_max_size = 128; | |
177 | int si_pad_size; | |
178 | int size_of_int = gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT; | |
179 | ||
180 | /* _pad */ | |
181 | if (gdbarch_ptr_bit (gdbarch) == 64) | |
182 | si_pad_size = (si_max_size / size_of_int) - 4; | |
183 | else | |
184 | si_pad_size = (si_max_size / size_of_int) - 3; | |
185 | append_composite_type_field (sifields_type, "_pad", | |
186 | init_vector_type (int_type, si_pad_size)); | |
187 | } | |
188 | ||
189 | /* _kill */ | |
e9bb382b | 190 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
191 | append_composite_type_field (type, "si_pid", pid_type); |
192 | append_composite_type_field (type, "si_uid", uid_type); | |
193 | append_composite_type_field (sifields_type, "_kill", type); | |
194 | ||
195 | /* _timer */ | |
e9bb382b | 196 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
197 | append_composite_type_field (type, "si_tid", int_type); |
198 | append_composite_type_field (type, "si_overrun", int_type); | |
199 | append_composite_type_field (type, "si_sigval", sigval_type); | |
200 | append_composite_type_field (sifields_type, "_timer", type); | |
201 | ||
202 | /* _rt */ | |
e9bb382b | 203 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
204 | append_composite_type_field (type, "si_pid", pid_type); |
205 | append_composite_type_field (type, "si_uid", uid_type); | |
206 | append_composite_type_field (type, "si_sigval", sigval_type); | |
207 | append_composite_type_field (sifields_type, "_rt", type); | |
208 | ||
209 | /* _sigchld */ | |
e9bb382b | 210 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
211 | append_composite_type_field (type, "si_pid", pid_type); |
212 | append_composite_type_field (type, "si_uid", uid_type); | |
213 | append_composite_type_field (type, "si_status", int_type); | |
214 | append_composite_type_field (type, "si_utime", clock_type); | |
215 | append_composite_type_field (type, "si_stime", clock_type); | |
216 | append_composite_type_field (sifields_type, "_sigchld", type); | |
217 | ||
218 | /* _sigfault */ | |
e9bb382b | 219 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
220 | append_composite_type_field (type, "si_addr", void_ptr_type); |
221 | append_composite_type_field (sifields_type, "_sigfault", type); | |
222 | ||
223 | /* _sigpoll */ | |
e9bb382b | 224 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
225 | append_composite_type_field (type, "si_band", long_type); |
226 | append_composite_type_field (type, "si_fd", int_type); | |
227 | append_composite_type_field (sifields_type, "_sigpoll", type); | |
228 | ||
229 | /* struct siginfo */ | |
e9bb382b | 230 | siginfo_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); |
4aa995e1 PA |
231 | TYPE_NAME (siginfo_type) = xstrdup ("siginfo"); |
232 | append_composite_type_field (siginfo_type, "si_signo", int_type); | |
233 | append_composite_type_field (siginfo_type, "si_errno", int_type); | |
234 | append_composite_type_field (siginfo_type, "si_code", int_type); | |
235 | append_composite_type_field_aligned (siginfo_type, | |
236 | "_sifields", sifields_type, | |
237 | TYPE_LENGTH (long_type)); | |
238 | ||
06253dd3 JK |
239 | linux_gdbarch_data->siginfo_type = siginfo_type; |
240 | ||
4aa995e1 PA |
241 | return siginfo_type; |
242 | } | |
6b3ae818 | 243 | |
c01cbb3d YQ |
244 | /* Return true if the target is running on uClinux instead of normal |
245 | Linux kernel. */ | |
246 | ||
247 | int | |
248 | linux_is_uclinux (void) | |
6c95b8df | 249 | { |
6c95b8df | 250 | CORE_ADDR dummy; |
6c95b8df | 251 | |
c01cbb3d YQ |
252 | return (target_auxv_search (¤t_target, AT_NULL, &dummy) > 0 |
253 | && target_auxv_search (¤t_target, AT_PAGESZ, &dummy) == 0); | |
254 | } | |
6c95b8df | 255 | |
c01cbb3d YQ |
256 | static int |
257 | linux_has_shared_address_space (struct gdbarch *gdbarch) | |
258 | { | |
259 | return linux_is_uclinux (); | |
6c95b8df | 260 | } |
a5ee0f0c PA |
261 | |
262 | /* This is how we want PTIDs from core files to be printed. */ | |
263 | ||
264 | static char * | |
265 | linux_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid) | |
266 | { | |
267 | static char buf[80]; | |
268 | ||
269 | if (ptid_get_lwp (ptid) != 0) | |
270 | { | |
271 | snprintf (buf, sizeof (buf), "LWP %ld", ptid_get_lwp (ptid)); | |
272 | return buf; | |
273 | } | |
274 | ||
275 | return normal_pid_to_str (ptid); | |
276 | } | |
277 | ||
3030c96e UW |
278 | /* Service function for corefiles and info proc. */ |
279 | ||
280 | static void | |
281 | read_mapping (const char *line, | |
282 | ULONGEST *addr, ULONGEST *endaddr, | |
283 | const char **permissions, size_t *permissions_len, | |
284 | ULONGEST *offset, | |
285 | const char **device, size_t *device_len, | |
286 | ULONGEST *inode, | |
287 | const char **filename) | |
288 | { | |
289 | const char *p = line; | |
290 | ||
291 | *addr = strtoulst (p, &p, 16); | |
292 | if (*p == '-') | |
293 | p++; | |
294 | *endaddr = strtoulst (p, &p, 16); | |
295 | ||
529480d0 | 296 | p = skip_spaces_const (p); |
3030c96e UW |
297 | *permissions = p; |
298 | while (*p && !isspace (*p)) | |
299 | p++; | |
300 | *permissions_len = p - *permissions; | |
301 | ||
302 | *offset = strtoulst (p, &p, 16); | |
303 | ||
529480d0 | 304 | p = skip_spaces_const (p); |
3030c96e UW |
305 | *device = p; |
306 | while (*p && !isspace (*p)) | |
307 | p++; | |
308 | *device_len = p - *device; | |
309 | ||
310 | *inode = strtoulst (p, &p, 10); | |
311 | ||
529480d0 | 312 | p = skip_spaces_const (p); |
3030c96e UW |
313 | *filename = p; |
314 | } | |
315 | ||
316 | /* Implement the "info proc" command. */ | |
317 | ||
318 | static void | |
319 | linux_info_proc (struct gdbarch *gdbarch, char *args, | |
320 | enum info_proc_what what) | |
321 | { | |
322 | /* A long is used for pid instead of an int to avoid a loss of precision | |
323 | compiler warning from the output of strtoul. */ | |
324 | long pid; | |
325 | int cmdline_f = (what == IP_MINIMAL || what == IP_CMDLINE || what == IP_ALL); | |
326 | int cwd_f = (what == IP_MINIMAL || what == IP_CWD || what == IP_ALL); | |
327 | int exe_f = (what == IP_MINIMAL || what == IP_EXE || what == IP_ALL); | |
328 | int mappings_f = (what == IP_MAPPINGS || what == IP_ALL); | |
329 | int status_f = (what == IP_STATUS || what == IP_ALL); | |
330 | int stat_f = (what == IP_STAT || what == IP_ALL); | |
331 | char filename[100]; | |
001f13d8 | 332 | char *data; |
3030c96e UW |
333 | int target_errno; |
334 | ||
335 | if (args && isdigit (args[0])) | |
336 | pid = strtoul (args, &args, 10); | |
337 | else | |
338 | { | |
339 | if (!target_has_execution) | |
340 | error (_("No current process: you must name one.")); | |
341 | if (current_inferior ()->fake_pid_p) | |
342 | error (_("Can't determine the current process's PID: you must name one.")); | |
343 | ||
344 | pid = current_inferior ()->pid; | |
345 | } | |
346 | ||
347 | args = skip_spaces (args); | |
348 | if (args && args[0]) | |
349 | error (_("Too many parameters: %s"), args); | |
350 | ||
351 | printf_filtered (_("process %ld\n"), pid); | |
352 | if (cmdline_f) | |
353 | { | |
354 | xsnprintf (filename, sizeof filename, "/proc/%ld/cmdline", pid); | |
355 | data = target_fileio_read_stralloc (filename); | |
356 | if (data) | |
357 | { | |
358 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
359 | printf_filtered ("cmdline = '%s'\n", data); | |
360 | do_cleanups (cleanup); | |
361 | } | |
362 | else | |
363 | warning (_("unable to open /proc file '%s'"), filename); | |
364 | } | |
365 | if (cwd_f) | |
366 | { | |
367 | xsnprintf (filename, sizeof filename, "/proc/%ld/cwd", pid); | |
368 | data = target_fileio_readlink (filename, &target_errno); | |
369 | if (data) | |
370 | { | |
371 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
372 | printf_filtered ("cwd = '%s'\n", data); | |
373 | do_cleanups (cleanup); | |
374 | } | |
375 | else | |
376 | warning (_("unable to read link '%s'"), filename); | |
377 | } | |
378 | if (exe_f) | |
379 | { | |
380 | xsnprintf (filename, sizeof filename, "/proc/%ld/exe", pid); | |
381 | data = target_fileio_readlink (filename, &target_errno); | |
382 | if (data) | |
383 | { | |
384 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
385 | printf_filtered ("exe = '%s'\n", data); | |
386 | do_cleanups (cleanup); | |
387 | } | |
388 | else | |
389 | warning (_("unable to read link '%s'"), filename); | |
390 | } | |
391 | if (mappings_f) | |
392 | { | |
393 | xsnprintf (filename, sizeof filename, "/proc/%ld/maps", pid); | |
394 | data = target_fileio_read_stralloc (filename); | |
395 | if (data) | |
396 | { | |
397 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
398 | char *line; | |
399 | ||
400 | printf_filtered (_("Mapped address spaces:\n\n")); | |
401 | if (gdbarch_addr_bit (gdbarch) == 32) | |
402 | { | |
403 | printf_filtered ("\t%10s %10s %10s %10s %s\n", | |
404 | "Start Addr", | |
405 | " End Addr", | |
406 | " Size", " Offset", "objfile"); | |
407 | } | |
408 | else | |
409 | { | |
410 | printf_filtered (" %18s %18s %10s %10s %s\n", | |
411 | "Start Addr", | |
412 | " End Addr", | |
413 | " Size", " Offset", "objfile"); | |
414 | } | |
415 | ||
416 | for (line = strtok (data, "\n"); line; line = strtok (NULL, "\n")) | |
417 | { | |
418 | ULONGEST addr, endaddr, offset, inode; | |
419 | const char *permissions, *device, *filename; | |
420 | size_t permissions_len, device_len; | |
421 | ||
422 | read_mapping (line, &addr, &endaddr, | |
423 | &permissions, &permissions_len, | |
424 | &offset, &device, &device_len, | |
425 | &inode, &filename); | |
426 | ||
427 | if (gdbarch_addr_bit (gdbarch) == 32) | |
428 | { | |
429 | printf_filtered ("\t%10s %10s %10s %10s %s\n", | |
430 | paddress (gdbarch, addr), | |
431 | paddress (gdbarch, endaddr), | |
432 | hex_string (endaddr - addr), | |
433 | hex_string (offset), | |
434 | *filename? filename : ""); | |
435 | } | |
436 | else | |
437 | { | |
438 | printf_filtered (" %18s %18s %10s %10s %s\n", | |
439 | paddress (gdbarch, addr), | |
440 | paddress (gdbarch, endaddr), | |
441 | hex_string (endaddr - addr), | |
442 | hex_string (offset), | |
443 | *filename? filename : ""); | |
444 | } | |
445 | } | |
446 | ||
447 | do_cleanups (cleanup); | |
448 | } | |
449 | else | |
450 | warning (_("unable to open /proc file '%s'"), filename); | |
451 | } | |
452 | if (status_f) | |
453 | { | |
454 | xsnprintf (filename, sizeof filename, "/proc/%ld/status", pid); | |
455 | data = target_fileio_read_stralloc (filename); | |
456 | if (data) | |
457 | { | |
458 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
459 | puts_filtered (data); | |
460 | do_cleanups (cleanup); | |
461 | } | |
462 | else | |
463 | warning (_("unable to open /proc file '%s'"), filename); | |
464 | } | |
465 | if (stat_f) | |
466 | { | |
467 | xsnprintf (filename, sizeof filename, "/proc/%ld/stat", pid); | |
468 | data = target_fileio_read_stralloc (filename); | |
469 | if (data) | |
470 | { | |
471 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
472 | const char *p = data; | |
3030c96e UW |
473 | |
474 | printf_filtered (_("Process: %s\n"), | |
475 | pulongest (strtoulst (p, &p, 10))); | |
476 | ||
529480d0 | 477 | p = skip_spaces_const (p); |
a71b5a38 | 478 | if (*p == '(') |
3030c96e | 479 | { |
a71b5a38 UW |
480 | const char *ep = strchr (p, ')'); |
481 | if (ep != NULL) | |
482 | { | |
483 | printf_filtered ("Exec file: %.*s\n", | |
484 | (int) (ep - p - 1), p + 1); | |
485 | p = ep + 1; | |
486 | } | |
3030c96e UW |
487 | } |
488 | ||
529480d0 | 489 | p = skip_spaces_const (p); |
3030c96e UW |
490 | if (*p) |
491 | printf_filtered (_("State: %c\n"), *p++); | |
492 | ||
493 | if (*p) | |
494 | printf_filtered (_("Parent process: %s\n"), | |
495 | pulongest (strtoulst (p, &p, 10))); | |
496 | if (*p) | |
497 | printf_filtered (_("Process group: %s\n"), | |
498 | pulongest (strtoulst (p, &p, 10))); | |
499 | if (*p) | |
500 | printf_filtered (_("Session id: %s\n"), | |
501 | pulongest (strtoulst (p, &p, 10))); | |
502 | if (*p) | |
503 | printf_filtered (_("TTY: %s\n"), | |
504 | pulongest (strtoulst (p, &p, 10))); | |
505 | if (*p) | |
506 | printf_filtered (_("TTY owner process group: %s\n"), | |
507 | pulongest (strtoulst (p, &p, 10))); | |
508 | ||
509 | if (*p) | |
510 | printf_filtered (_("Flags: %s\n"), | |
511 | hex_string (strtoulst (p, &p, 10))); | |
512 | if (*p) | |
513 | printf_filtered (_("Minor faults (no memory page): %s\n"), | |
514 | pulongest (strtoulst (p, &p, 10))); | |
515 | if (*p) | |
516 | printf_filtered (_("Minor faults, children: %s\n"), | |
517 | pulongest (strtoulst (p, &p, 10))); | |
518 | if (*p) | |
519 | printf_filtered (_("Major faults (memory page faults): %s\n"), | |
520 | pulongest (strtoulst (p, &p, 10))); | |
521 | if (*p) | |
522 | printf_filtered (_("Major faults, children: %s\n"), | |
523 | pulongest (strtoulst (p, &p, 10))); | |
524 | if (*p) | |
525 | printf_filtered (_("utime: %s\n"), | |
526 | pulongest (strtoulst (p, &p, 10))); | |
527 | if (*p) | |
528 | printf_filtered (_("stime: %s\n"), | |
529 | pulongest (strtoulst (p, &p, 10))); | |
530 | if (*p) | |
531 | printf_filtered (_("utime, children: %s\n"), | |
532 | pulongest (strtoulst (p, &p, 10))); | |
533 | if (*p) | |
534 | printf_filtered (_("stime, children: %s\n"), | |
535 | pulongest (strtoulst (p, &p, 10))); | |
536 | if (*p) | |
537 | printf_filtered (_("jiffies remaining in current " | |
538 | "time slice: %s\n"), | |
539 | pulongest (strtoulst (p, &p, 10))); | |
540 | if (*p) | |
541 | printf_filtered (_("'nice' value: %s\n"), | |
542 | pulongest (strtoulst (p, &p, 10))); | |
543 | if (*p) | |
544 | printf_filtered (_("jiffies until next timeout: %s\n"), | |
545 | pulongest (strtoulst (p, &p, 10))); | |
546 | if (*p) | |
547 | printf_filtered (_("jiffies until next SIGALRM: %s\n"), | |
548 | pulongest (strtoulst (p, &p, 10))); | |
549 | if (*p) | |
550 | printf_filtered (_("start time (jiffies since " | |
551 | "system boot): %s\n"), | |
552 | pulongest (strtoulst (p, &p, 10))); | |
553 | if (*p) | |
554 | printf_filtered (_("Virtual memory size: %s\n"), | |
555 | pulongest (strtoulst (p, &p, 10))); | |
556 | if (*p) | |
557 | printf_filtered (_("Resident set size: %s\n"), | |
558 | pulongest (strtoulst (p, &p, 10))); | |
559 | if (*p) | |
560 | printf_filtered (_("rlim: %s\n"), | |
561 | pulongest (strtoulst (p, &p, 10))); | |
562 | if (*p) | |
563 | printf_filtered (_("Start of text: %s\n"), | |
564 | hex_string (strtoulst (p, &p, 10))); | |
565 | if (*p) | |
566 | printf_filtered (_("End of text: %s\n"), | |
567 | hex_string (strtoulst (p, &p, 10))); | |
568 | if (*p) | |
569 | printf_filtered (_("Start of stack: %s\n"), | |
570 | hex_string (strtoulst (p, &p, 10))); | |
571 | #if 0 /* Don't know how architecture-dependent the rest is... | |
572 | Anyway the signal bitmap info is available from "status". */ | |
573 | if (*p) | |
574 | printf_filtered (_("Kernel stack pointer: %s\n"), | |
575 | hex_string (strtoulst (p, &p, 10))); | |
576 | if (*p) | |
577 | printf_filtered (_("Kernel instr pointer: %s\n"), | |
578 | hex_string (strtoulst (p, &p, 10))); | |
579 | if (*p) | |
580 | printf_filtered (_("Pending signals bitmap: %s\n"), | |
581 | hex_string (strtoulst (p, &p, 10))); | |
582 | if (*p) | |
583 | printf_filtered (_("Blocked signals bitmap: %s\n"), | |
584 | hex_string (strtoulst (p, &p, 10))); | |
585 | if (*p) | |
586 | printf_filtered (_("Ignored signals bitmap: %s\n"), | |
587 | hex_string (strtoulst (p, &p, 10))); | |
588 | if (*p) | |
589 | printf_filtered (_("Catched signals bitmap: %s\n"), | |
590 | hex_string (strtoulst (p, &p, 10))); | |
591 | if (*p) | |
592 | printf_filtered (_("wchan (system call): %s\n"), | |
593 | hex_string (strtoulst (p, &p, 10))); | |
594 | #endif | |
595 | do_cleanups (cleanup); | |
596 | } | |
597 | else | |
598 | warning (_("unable to open /proc file '%s'"), filename); | |
599 | } | |
600 | } | |
601 | ||
451b7c33 TT |
602 | /* Implement "info proc mappings" for a corefile. */ |
603 | ||
604 | static void | |
605 | linux_core_info_proc_mappings (struct gdbarch *gdbarch, char *args) | |
606 | { | |
607 | asection *section; | |
608 | ULONGEST count, page_size; | |
609 | unsigned char *descdata, *filenames, *descend, *contents; | |
610 | size_t note_size; | |
611 | unsigned int addr_size_bits, addr_size; | |
612 | struct cleanup *cleanup; | |
613 | struct gdbarch *core_gdbarch = gdbarch_from_bfd (core_bfd); | |
614 | /* We assume this for reading 64-bit core files. */ | |
615 | gdb_static_assert (sizeof (ULONGEST) >= 8); | |
616 | ||
617 | section = bfd_get_section_by_name (core_bfd, ".note.linuxcore.file"); | |
618 | if (section == NULL) | |
619 | { | |
620 | warning (_("unable to find mappings in core file")); | |
621 | return; | |
622 | } | |
623 | ||
624 | addr_size_bits = gdbarch_addr_bit (core_gdbarch); | |
625 | addr_size = addr_size_bits / 8; | |
626 | note_size = bfd_get_section_size (section); | |
627 | ||
628 | if (note_size < 2 * addr_size) | |
629 | error (_("malformed core note - too short for header")); | |
630 | ||
631 | contents = xmalloc (note_size); | |
632 | cleanup = make_cleanup (xfree, contents); | |
633 | if (!bfd_get_section_contents (core_bfd, section, contents, 0, note_size)) | |
634 | error (_("could not get core note contents")); | |
635 | ||
636 | descdata = contents; | |
637 | descend = descdata + note_size; | |
638 | ||
639 | if (descdata[note_size - 1] != '\0') | |
640 | error (_("malformed note - does not end with \\0")); | |
641 | ||
642 | count = bfd_get (addr_size_bits, core_bfd, descdata); | |
643 | descdata += addr_size; | |
644 | ||
645 | page_size = bfd_get (addr_size_bits, core_bfd, descdata); | |
646 | descdata += addr_size; | |
647 | ||
648 | if (note_size < 2 * addr_size + count * 3 * addr_size) | |
649 | error (_("malformed note - too short for supplied file count")); | |
650 | ||
651 | printf_filtered (_("Mapped address spaces:\n\n")); | |
652 | if (gdbarch_addr_bit (gdbarch) == 32) | |
653 | { | |
654 | printf_filtered ("\t%10s %10s %10s %10s %s\n", | |
655 | "Start Addr", | |
656 | " End Addr", | |
657 | " Size", " Offset", "objfile"); | |
658 | } | |
659 | else | |
660 | { | |
661 | printf_filtered (" %18s %18s %10s %10s %s\n", | |
662 | "Start Addr", | |
663 | " End Addr", | |
664 | " Size", " Offset", "objfile"); | |
665 | } | |
666 | ||
667 | filenames = descdata + count * 3 * addr_size; | |
668 | while (--count > 0) | |
669 | { | |
670 | ULONGEST start, end, file_ofs; | |
671 | ||
672 | if (filenames == descend) | |
673 | error (_("malformed note - filenames end too early")); | |
674 | ||
675 | start = bfd_get (addr_size_bits, core_bfd, descdata); | |
676 | descdata += addr_size; | |
677 | end = bfd_get (addr_size_bits, core_bfd, descdata); | |
678 | descdata += addr_size; | |
679 | file_ofs = bfd_get (addr_size_bits, core_bfd, descdata); | |
680 | descdata += addr_size; | |
681 | ||
682 | file_ofs *= page_size; | |
683 | ||
684 | if (gdbarch_addr_bit (gdbarch) == 32) | |
685 | printf_filtered ("\t%10s %10s %10s %10s %s\n", | |
686 | paddress (gdbarch, start), | |
687 | paddress (gdbarch, end), | |
688 | hex_string (end - start), | |
689 | hex_string (file_ofs), | |
690 | filenames); | |
691 | else | |
692 | printf_filtered (" %18s %18s %10s %10s %s\n", | |
693 | paddress (gdbarch, start), | |
694 | paddress (gdbarch, end), | |
695 | hex_string (end - start), | |
696 | hex_string (file_ofs), | |
697 | filenames); | |
698 | ||
699 | filenames += 1 + strlen ((char *) filenames); | |
700 | } | |
701 | ||
702 | do_cleanups (cleanup); | |
703 | } | |
704 | ||
705 | /* Implement "info proc" for a corefile. */ | |
706 | ||
707 | static void | |
708 | linux_core_info_proc (struct gdbarch *gdbarch, char *args, | |
709 | enum info_proc_what what) | |
710 | { | |
711 | int exe_f = (what == IP_MINIMAL || what == IP_EXE || what == IP_ALL); | |
712 | int mappings_f = (what == IP_MAPPINGS || what == IP_ALL); | |
713 | ||
714 | if (exe_f) | |
715 | { | |
716 | const char *exe; | |
717 | ||
718 | exe = bfd_core_file_failing_command (core_bfd); | |
719 | if (exe != NULL) | |
720 | printf_filtered ("exe = '%s'\n", exe); | |
721 | else | |
722 | warning (_("unable to find command name in core file")); | |
723 | } | |
724 | ||
725 | if (mappings_f) | |
726 | linux_core_info_proc_mappings (gdbarch, args); | |
727 | ||
728 | if (!exe_f && !mappings_f) | |
729 | error (_("unable to handle request")); | |
730 | } | |
731 | ||
732 | typedef int linux_find_memory_region_ftype (ULONGEST vaddr, ULONGEST size, | |
733 | ULONGEST offset, ULONGEST inode, | |
734 | int read, int write, | |
735 | int exec, int modified, | |
736 | const char *filename, | |
737 | void *data); | |
738 | ||
35c2fab7 UW |
739 | /* List memory regions in the inferior for a corefile. */ |
740 | ||
741 | static int | |
451b7c33 TT |
742 | linux_find_memory_regions_full (struct gdbarch *gdbarch, |
743 | linux_find_memory_region_ftype *func, | |
744 | void *obfd) | |
35c2fab7 | 745 | { |
d1794952 | 746 | char mapsfilename[100]; |
001f13d8 | 747 | char *data; |
35c2fab7 UW |
748 | |
749 | /* We need to know the real target PID to access /proc. */ | |
750 | if (current_inferior ()->fake_pid_p) | |
751 | return 1; | |
752 | ||
d1794952 | 753 | xsnprintf (mapsfilename, sizeof mapsfilename, |
4f69f4c2 | 754 | "/proc/%d/smaps", current_inferior ()->pid); |
d1794952 | 755 | data = target_fileio_read_stralloc (mapsfilename); |
4f69f4c2 JK |
756 | if (data == NULL) |
757 | { | |
758 | /* Older Linux kernels did not support /proc/PID/smaps. */ | |
d1794952 | 759 | xsnprintf (mapsfilename, sizeof mapsfilename, |
4f69f4c2 | 760 | "/proc/%d/maps", current_inferior ()->pid); |
d1794952 | 761 | data = target_fileio_read_stralloc (mapsfilename); |
4f69f4c2 | 762 | } |
35c2fab7 UW |
763 | if (data) |
764 | { | |
765 | struct cleanup *cleanup = make_cleanup (xfree, data); | |
766 | char *line; | |
767 | ||
4f69f4c2 JK |
768 | line = strtok (data, "\n"); |
769 | while (line) | |
35c2fab7 UW |
770 | { |
771 | ULONGEST addr, endaddr, offset, inode; | |
772 | const char *permissions, *device, *filename; | |
773 | size_t permissions_len, device_len; | |
774 | int read, write, exec; | |
4f69f4c2 | 775 | int modified = 0, has_anonymous = 0; |
35c2fab7 UW |
776 | |
777 | read_mapping (line, &addr, &endaddr, &permissions, &permissions_len, | |
778 | &offset, &device, &device_len, &inode, &filename); | |
779 | ||
780 | /* Decode permissions. */ | |
781 | read = (memchr (permissions, 'r', permissions_len) != 0); | |
782 | write = (memchr (permissions, 'w', permissions_len) != 0); | |
783 | exec = (memchr (permissions, 'x', permissions_len) != 0); | |
784 | ||
4f69f4c2 JK |
785 | /* Try to detect if region was modified by parsing smaps counters. */ |
786 | for (line = strtok (NULL, "\n"); | |
787 | line && line[0] >= 'A' && line[0] <= 'Z'; | |
788 | line = strtok (NULL, "\n")) | |
789 | { | |
790 | char keyword[64 + 1]; | |
4f69f4c2 | 791 | |
9ead1b84 | 792 | if (sscanf (line, "%64s", keyword) != 1) |
4f69f4c2 | 793 | { |
d1794952 | 794 | warning (_("Error parsing {s,}maps file '%s'"), mapsfilename); |
4f69f4c2 JK |
795 | break; |
796 | } | |
797 | if (strcmp (keyword, "Anonymous:") == 0) | |
798 | has_anonymous = 1; | |
9ead1b84 JK |
799 | if (strcmp (keyword, "Shared_Dirty:") == 0 |
800 | || strcmp (keyword, "Private_Dirty:") == 0 | |
801 | || strcmp (keyword, "Swap:") == 0 | |
802 | || strcmp (keyword, "Anonymous:") == 0) | |
803 | { | |
804 | unsigned long number; | |
805 | ||
806 | if (sscanf (line, "%*s%lu", &number) != 1) | |
807 | { | |
808 | warning (_("Error parsing {s,}maps file '%s' number"), | |
809 | mapsfilename); | |
810 | break; | |
811 | } | |
812 | if (number != 0) | |
813 | modified = 1; | |
814 | } | |
4f69f4c2 JK |
815 | } |
816 | ||
817 | /* Older Linux kernels did not support the "Anonymous:" counter. | |
818 | If it is missing, we can't be sure - dump all the pages. */ | |
819 | if (!has_anonymous) | |
820 | modified = 1; | |
821 | ||
35c2fab7 | 822 | /* Invoke the callback function to create the corefile segment. */ |
451b7c33 TT |
823 | func (addr, endaddr - addr, offset, inode, |
824 | read, write, exec, modified, filename, obfd); | |
35c2fab7 UW |
825 | } |
826 | ||
827 | do_cleanups (cleanup); | |
828 | return 0; | |
829 | } | |
830 | ||
831 | return 1; | |
832 | } | |
833 | ||
451b7c33 TT |
834 | /* A structure for passing information through |
835 | linux_find_memory_regions_full. */ | |
836 | ||
837 | struct linux_find_memory_regions_data | |
838 | { | |
839 | /* The original callback. */ | |
840 | ||
841 | find_memory_region_ftype func; | |
842 | ||
843 | /* The original datum. */ | |
844 | ||
845 | void *obfd; | |
846 | }; | |
847 | ||
848 | /* A callback for linux_find_memory_regions that converts between the | |
849 | "full"-style callback and find_memory_region_ftype. */ | |
850 | ||
851 | static int | |
852 | linux_find_memory_regions_thunk (ULONGEST vaddr, ULONGEST size, | |
853 | ULONGEST offset, ULONGEST inode, | |
854 | int read, int write, int exec, int modified, | |
855 | const char *filename, void *arg) | |
856 | { | |
857 | struct linux_find_memory_regions_data *data = arg; | |
858 | ||
859 | return data->func (vaddr, size, read, write, exec, modified, data->obfd); | |
860 | } | |
861 | ||
862 | /* A variant of linux_find_memory_regions_full that is suitable as the | |
863 | gdbarch find_memory_regions method. */ | |
864 | ||
865 | static int | |
866 | linux_find_memory_regions (struct gdbarch *gdbarch, | |
867 | find_memory_region_ftype func, void *obfd) | |
868 | { | |
869 | struct linux_find_memory_regions_data data; | |
870 | ||
871 | data.func = func; | |
872 | data.obfd = obfd; | |
873 | ||
874 | return linux_find_memory_regions_full (gdbarch, | |
875 | linux_find_memory_regions_thunk, | |
876 | &data); | |
877 | } | |
878 | ||
6432734d UW |
879 | /* Determine which signal stopped execution. */ |
880 | ||
881 | static int | |
882 | find_signalled_thread (struct thread_info *info, void *data) | |
883 | { | |
a493e3e2 | 884 | if (info->suspend.stop_signal != GDB_SIGNAL_0 |
6432734d UW |
885 | && ptid_get_pid (info->ptid) == ptid_get_pid (inferior_ptid)) |
886 | return 1; | |
887 | ||
888 | return 0; | |
889 | } | |
890 | ||
2ea28649 | 891 | static enum gdb_signal |
6432734d UW |
892 | find_stop_signal (void) |
893 | { | |
894 | struct thread_info *info = | |
895 | iterate_over_threads (find_signalled_thread, NULL); | |
896 | ||
897 | if (info) | |
898 | return info->suspend.stop_signal; | |
899 | else | |
a493e3e2 | 900 | return GDB_SIGNAL_0; |
6432734d UW |
901 | } |
902 | ||
903 | /* Generate corefile notes for SPU contexts. */ | |
904 | ||
905 | static char * | |
906 | linux_spu_make_corefile_notes (bfd *obfd, char *note_data, int *note_size) | |
907 | { | |
908 | static const char *spu_files[] = | |
909 | { | |
910 | "object-id", | |
911 | "mem", | |
912 | "regs", | |
913 | "fpcr", | |
914 | "lslr", | |
915 | "decr", | |
916 | "decr_status", | |
917 | "signal1", | |
918 | "signal1_type", | |
919 | "signal2", | |
920 | "signal2_type", | |
921 | "event_mask", | |
922 | "event_status", | |
923 | "mbox_info", | |
924 | "ibox_info", | |
925 | "wbox_info", | |
926 | "dma_info", | |
927 | "proxydma_info", | |
928 | }; | |
929 | ||
f5656ead | 930 | enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch ()); |
6432734d UW |
931 | gdb_byte *spu_ids; |
932 | LONGEST i, j, size; | |
933 | ||
934 | /* Determine list of SPU ids. */ | |
935 | size = target_read_alloc (¤t_target, TARGET_OBJECT_SPU, | |
936 | NULL, &spu_ids); | |
937 | ||
938 | /* Generate corefile notes for each SPU file. */ | |
939 | for (i = 0; i < size; i += 4) | |
940 | { | |
941 | int fd = extract_unsigned_integer (spu_ids + i, 4, byte_order); | |
942 | ||
943 | for (j = 0; j < sizeof (spu_files) / sizeof (spu_files[0]); j++) | |
944 | { | |
945 | char annex[32], note_name[32]; | |
946 | gdb_byte *spu_data; | |
947 | LONGEST spu_len; | |
948 | ||
949 | xsnprintf (annex, sizeof annex, "%d/%s", fd, spu_files[j]); | |
950 | spu_len = target_read_alloc (¤t_target, TARGET_OBJECT_SPU, | |
951 | annex, &spu_data); | |
952 | if (spu_len > 0) | |
953 | { | |
954 | xsnprintf (note_name, sizeof note_name, "SPU/%s", annex); | |
955 | note_data = elfcore_write_note (obfd, note_data, note_size, | |
956 | note_name, NT_SPU, | |
957 | spu_data, spu_len); | |
958 | xfree (spu_data); | |
959 | ||
960 | if (!note_data) | |
961 | { | |
962 | xfree (spu_ids); | |
963 | return NULL; | |
964 | } | |
965 | } | |
966 | } | |
967 | } | |
968 | ||
969 | if (size > 0) | |
970 | xfree (spu_ids); | |
971 | ||
972 | return note_data; | |
973 | } | |
974 | ||
451b7c33 TT |
975 | /* This is used to pass information from |
976 | linux_make_mappings_corefile_notes through | |
977 | linux_find_memory_regions_full. */ | |
978 | ||
979 | struct linux_make_mappings_data | |
980 | { | |
981 | /* Number of files mapped. */ | |
982 | ULONGEST file_count; | |
983 | ||
984 | /* The obstack for the main part of the data. */ | |
985 | struct obstack *data_obstack; | |
986 | ||
987 | /* The filename obstack. */ | |
988 | struct obstack *filename_obstack; | |
989 | ||
990 | /* The architecture's "long" type. */ | |
991 | struct type *long_type; | |
992 | }; | |
993 | ||
994 | static linux_find_memory_region_ftype linux_make_mappings_callback; | |
995 | ||
996 | /* A callback for linux_find_memory_regions_full that updates the | |
997 | mappings data for linux_make_mappings_corefile_notes. */ | |
998 | ||
999 | static int | |
1000 | linux_make_mappings_callback (ULONGEST vaddr, ULONGEST size, | |
1001 | ULONGEST offset, ULONGEST inode, | |
1002 | int read, int write, int exec, int modified, | |
1003 | const char *filename, void *data) | |
1004 | { | |
1005 | struct linux_make_mappings_data *map_data = data; | |
1006 | gdb_byte buf[sizeof (ULONGEST)]; | |
1007 | ||
1008 | if (*filename == '\0' || inode == 0) | |
1009 | return 0; | |
1010 | ||
1011 | ++map_data->file_count; | |
1012 | ||
1013 | pack_long (buf, map_data->long_type, vaddr); | |
1014 | obstack_grow (map_data->data_obstack, buf, TYPE_LENGTH (map_data->long_type)); | |
1015 | pack_long (buf, map_data->long_type, vaddr + size); | |
1016 | obstack_grow (map_data->data_obstack, buf, TYPE_LENGTH (map_data->long_type)); | |
1017 | pack_long (buf, map_data->long_type, offset); | |
1018 | obstack_grow (map_data->data_obstack, buf, TYPE_LENGTH (map_data->long_type)); | |
1019 | ||
1020 | obstack_grow_str0 (map_data->filename_obstack, filename); | |
1021 | ||
1022 | return 0; | |
1023 | } | |
1024 | ||
1025 | /* Write the file mapping data to the core file, if possible. OBFD is | |
1026 | the output BFD. NOTE_DATA is the current note data, and NOTE_SIZE | |
1027 | is a pointer to the note size. Returns the new NOTE_DATA and | |
1028 | updates NOTE_SIZE. */ | |
1029 | ||
1030 | static char * | |
1031 | linux_make_mappings_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, | |
1032 | char *note_data, int *note_size) | |
1033 | { | |
1034 | struct cleanup *cleanup; | |
1035 | struct obstack data_obstack, filename_obstack; | |
1036 | struct linux_make_mappings_data mapping_data; | |
1037 | struct type *long_type | |
1038 | = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), 0, "long"); | |
1039 | gdb_byte buf[sizeof (ULONGEST)]; | |
1040 | ||
1041 | obstack_init (&data_obstack); | |
1042 | cleanup = make_cleanup_obstack_free (&data_obstack); | |
1043 | obstack_init (&filename_obstack); | |
1044 | make_cleanup_obstack_free (&filename_obstack); | |
1045 | ||
1046 | mapping_data.file_count = 0; | |
1047 | mapping_data.data_obstack = &data_obstack; | |
1048 | mapping_data.filename_obstack = &filename_obstack; | |
1049 | mapping_data.long_type = long_type; | |
1050 | ||
1051 | /* Reserve space for the count. */ | |
1052 | obstack_blank (&data_obstack, TYPE_LENGTH (long_type)); | |
1053 | /* We always write the page size as 1 since we have no good way to | |
1054 | determine the correct value. */ | |
1055 | pack_long (buf, long_type, 1); | |
1056 | obstack_grow (&data_obstack, buf, TYPE_LENGTH (long_type)); | |
1057 | ||
1058 | linux_find_memory_regions_full (gdbarch, linux_make_mappings_callback, | |
1059 | &mapping_data); | |
1060 | ||
1061 | if (mapping_data.file_count != 0) | |
1062 | { | |
1063 | /* Write the count to the obstack. */ | |
51a5cd90 PA |
1064 | pack_long ((gdb_byte *) obstack_base (&data_obstack), |
1065 | long_type, mapping_data.file_count); | |
451b7c33 TT |
1066 | |
1067 | /* Copy the filenames to the data obstack. */ | |
1068 | obstack_grow (&data_obstack, obstack_base (&filename_obstack), | |
1069 | obstack_object_size (&filename_obstack)); | |
1070 | ||
1071 | note_data = elfcore_write_note (obfd, note_data, note_size, | |
1072 | "CORE", NT_FILE, | |
1073 | obstack_base (&data_obstack), | |
1074 | obstack_object_size (&data_obstack)); | |
1075 | } | |
1076 | ||
1077 | do_cleanups (cleanup); | |
1078 | return note_data; | |
1079 | } | |
1080 | ||
6432734d UW |
1081 | /* Records the thread's register state for the corefile note |
1082 | section. */ | |
1083 | ||
1084 | static char * | |
1085 | linux_collect_thread_registers (const struct regcache *regcache, | |
1086 | ptid_t ptid, bfd *obfd, | |
1087 | char *note_data, int *note_size, | |
2ea28649 | 1088 | enum gdb_signal stop_signal) |
6432734d UW |
1089 | { |
1090 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
1091 | struct core_regset_section *sect_list; | |
1092 | unsigned long lwp; | |
1093 | ||
1094 | sect_list = gdbarch_core_regset_sections (gdbarch); | |
1095 | gdb_assert (sect_list); | |
1096 | ||
1097 | /* For remote targets the LWP may not be available, so use the TID. */ | |
1098 | lwp = ptid_get_lwp (ptid); | |
1099 | if (!lwp) | |
1100 | lwp = ptid_get_tid (ptid); | |
1101 | ||
1102 | while (sect_list->sect_name != NULL) | |
1103 | { | |
1104 | const struct regset *regset; | |
1105 | char *buf; | |
1106 | ||
1107 | regset = gdbarch_regset_from_core_section (gdbarch, | |
1108 | sect_list->sect_name, | |
1109 | sect_list->size); | |
1110 | gdb_assert (regset && regset->collect_regset); | |
1111 | ||
1112 | buf = xmalloc (sect_list->size); | |
1113 | regset->collect_regset (regset, regcache, -1, buf, sect_list->size); | |
1114 | ||
1115 | /* PRSTATUS still needs to be treated specially. */ | |
1116 | if (strcmp (sect_list->sect_name, ".reg") == 0) | |
1117 | note_data = (char *) elfcore_write_prstatus | |
1118 | (obfd, note_data, note_size, lwp, | |
2ea28649 | 1119 | gdb_signal_to_host (stop_signal), buf); |
6432734d UW |
1120 | else |
1121 | note_data = (char *) elfcore_write_register_note | |
1122 | (obfd, note_data, note_size, | |
1123 | sect_list->sect_name, buf, sect_list->size); | |
1124 | xfree (buf); | |
1125 | sect_list++; | |
1126 | ||
1127 | if (!note_data) | |
1128 | return NULL; | |
1129 | } | |
1130 | ||
1131 | return note_data; | |
1132 | } | |
1133 | ||
9015683b TT |
1134 | /* Fetch the siginfo data for the current thread, if it exists. If |
1135 | there is no data, or we could not read it, return NULL. Otherwise, | |
1136 | return a newly malloc'd buffer holding the data and fill in *SIZE | |
1137 | with the size of the data. The caller is responsible for freeing | |
1138 | the data. */ | |
1139 | ||
1140 | static gdb_byte * | |
1141 | linux_get_siginfo_data (struct gdbarch *gdbarch, LONGEST *size) | |
1142 | { | |
1143 | struct type *siginfo_type; | |
1144 | gdb_byte *buf; | |
1145 | LONGEST bytes_read; | |
1146 | struct cleanup *cleanups; | |
1147 | ||
1148 | if (!gdbarch_get_siginfo_type_p (gdbarch)) | |
1149 | return NULL; | |
1150 | ||
1151 | siginfo_type = gdbarch_get_siginfo_type (gdbarch); | |
1152 | ||
1153 | buf = xmalloc (TYPE_LENGTH (siginfo_type)); | |
1154 | cleanups = make_cleanup (xfree, buf); | |
1155 | ||
1156 | bytes_read = target_read (¤t_target, TARGET_OBJECT_SIGNAL_INFO, NULL, | |
1157 | buf, 0, TYPE_LENGTH (siginfo_type)); | |
1158 | if (bytes_read == TYPE_LENGTH (siginfo_type)) | |
1159 | { | |
1160 | discard_cleanups (cleanups); | |
1161 | *size = bytes_read; | |
1162 | } | |
1163 | else | |
1164 | { | |
1165 | do_cleanups (cleanups); | |
1166 | buf = NULL; | |
1167 | } | |
1168 | ||
1169 | return buf; | |
1170 | } | |
1171 | ||
6432734d UW |
1172 | struct linux_corefile_thread_data |
1173 | { | |
1174 | struct gdbarch *gdbarch; | |
1175 | int pid; | |
1176 | bfd *obfd; | |
1177 | char *note_data; | |
1178 | int *note_size; | |
1179 | int num_notes; | |
2ea28649 | 1180 | enum gdb_signal stop_signal; |
6432734d UW |
1181 | linux_collect_thread_registers_ftype collect; |
1182 | }; | |
1183 | ||
1184 | /* Called by gdbthread.c once per thread. Records the thread's | |
1185 | register state for the corefile note section. */ | |
1186 | ||
1187 | static int | |
1188 | linux_corefile_thread_callback (struct thread_info *info, void *data) | |
1189 | { | |
1190 | struct linux_corefile_thread_data *args = data; | |
1191 | ||
1192 | if (ptid_get_pid (info->ptid) == args->pid) | |
1193 | { | |
1194 | struct cleanup *old_chain; | |
1195 | struct regcache *regcache; | |
9015683b TT |
1196 | gdb_byte *siginfo_data; |
1197 | LONGEST siginfo_size; | |
1198 | ||
6432734d UW |
1199 | regcache = get_thread_arch_regcache (info->ptid, args->gdbarch); |
1200 | ||
1201 | old_chain = save_inferior_ptid (); | |
1202 | inferior_ptid = info->ptid; | |
1203 | target_fetch_registers (regcache, -1); | |
9015683b | 1204 | siginfo_data = linux_get_siginfo_data (args->gdbarch, &siginfo_size); |
6432734d UW |
1205 | do_cleanups (old_chain); |
1206 | ||
9015683b TT |
1207 | old_chain = make_cleanup (xfree, siginfo_data); |
1208 | ||
6432734d UW |
1209 | args->note_data = args->collect (regcache, info->ptid, args->obfd, |
1210 | args->note_data, args->note_size, | |
1211 | args->stop_signal); | |
1212 | args->num_notes++; | |
9015683b TT |
1213 | |
1214 | if (siginfo_data != NULL) | |
1215 | { | |
1216 | args->note_data = elfcore_write_note (args->obfd, | |
1217 | args->note_data, | |
1218 | args->note_size, | |
1219 | "CORE", NT_SIGINFO, | |
1220 | siginfo_data, siginfo_size); | |
1221 | args->num_notes++; | |
1222 | } | |
1223 | ||
1224 | do_cleanups (old_chain); | |
6432734d UW |
1225 | } |
1226 | ||
1227 | return !args->note_data; | |
1228 | } | |
1229 | ||
b3ac9c77 SDJ |
1230 | /* Fill the PRPSINFO structure with information about the process being |
1231 | debugged. Returns 1 in case of success, 0 for failures. Please note that | |
1232 | even if the structure cannot be entirely filled (e.g., GDB was unable to | |
1233 | gather information about the process UID/GID), this function will still | |
1234 | return 1 since some information was already recorded. It will only return | |
1235 | 0 iff nothing can be gathered. */ | |
1236 | ||
1237 | static int | |
1238 | linux_fill_prpsinfo (struct elf_internal_linux_prpsinfo *p) | |
1239 | { | |
1240 | /* The filename which we will use to obtain some info about the process. | |
1241 | We will basically use this to store the `/proc/PID/FILENAME' file. */ | |
1242 | char filename[100]; | |
1243 | /* The full name of the program which generated the corefile. */ | |
1244 | char *fname; | |
1245 | /* The basename of the executable. */ | |
1246 | const char *basename; | |
1247 | /* The arguments of the program. */ | |
1248 | char *psargs; | |
1249 | char *infargs; | |
1250 | /* The contents of `/proc/PID/stat' and `/proc/PID/status' files. */ | |
1251 | char *proc_stat, *proc_status; | |
1252 | /* Temporary buffer. */ | |
1253 | char *tmpstr; | |
1254 | /* The valid states of a process, according to the Linux kernel. */ | |
1255 | const char valid_states[] = "RSDTZW"; | |
1256 | /* The program state. */ | |
1257 | const char *prog_state; | |
1258 | /* The state of the process. */ | |
1259 | char pr_sname; | |
1260 | /* The PID of the program which generated the corefile. */ | |
1261 | pid_t pid; | |
1262 | /* Process flags. */ | |
1263 | unsigned int pr_flag; | |
1264 | /* Process nice value. */ | |
1265 | long pr_nice; | |
1266 | /* The number of fields read by `sscanf'. */ | |
1267 | int n_fields = 0; | |
1268 | /* Cleanups. */ | |
1269 | struct cleanup *c; | |
1270 | int i; | |
1271 | ||
1272 | gdb_assert (p != NULL); | |
1273 | ||
1274 | /* Obtaining PID and filename. */ | |
1275 | pid = ptid_get_pid (inferior_ptid); | |
1276 | xsnprintf (filename, sizeof (filename), "/proc/%d/cmdline", (int) pid); | |
1277 | fname = target_fileio_read_stralloc (filename); | |
1278 | ||
1279 | if (fname == NULL || *fname == '\0') | |
1280 | { | |
1281 | /* No program name was read, so we won't be able to retrieve more | |
1282 | information about the process. */ | |
1283 | xfree (fname); | |
1284 | return 0; | |
1285 | } | |
1286 | ||
1287 | c = make_cleanup (xfree, fname); | |
1288 | memset (p, 0, sizeof (*p)); | |
1289 | ||
1290 | /* Defining the PID. */ | |
1291 | p->pr_pid = pid; | |
1292 | ||
1293 | /* Copying the program name. Only the basename matters. */ | |
1294 | basename = lbasename (fname); | |
1295 | strncpy (p->pr_fname, basename, sizeof (p->pr_fname)); | |
1296 | p->pr_fname[sizeof (p->pr_fname) - 1] = '\0'; | |
1297 | ||
1298 | infargs = get_inferior_args (); | |
1299 | ||
1300 | psargs = xstrdup (fname); | |
1301 | if (infargs != NULL) | |
1302 | psargs = reconcat (psargs, psargs, " ", infargs, NULL); | |
1303 | ||
1304 | make_cleanup (xfree, psargs); | |
1305 | ||
1306 | strncpy (p->pr_psargs, psargs, sizeof (p->pr_psargs)); | |
1307 | p->pr_psargs[sizeof (p->pr_psargs) - 1] = '\0'; | |
1308 | ||
1309 | xsnprintf (filename, sizeof (filename), "/proc/%d/stat", (int) pid); | |
1310 | proc_stat = target_fileio_read_stralloc (filename); | |
1311 | make_cleanup (xfree, proc_stat); | |
1312 | ||
1313 | if (proc_stat == NULL || *proc_stat == '\0') | |
1314 | { | |
1315 | /* Despite being unable to read more information about the | |
1316 | process, we return 1 here because at least we have its | |
1317 | command line, PID and arguments. */ | |
1318 | do_cleanups (c); | |
1319 | return 1; | |
1320 | } | |
1321 | ||
1322 | /* Ok, we have the stats. It's time to do a little parsing of the | |
1323 | contents of the buffer, so that we end up reading what we want. | |
1324 | ||
1325 | The following parsing mechanism is strongly based on the | |
1326 | information generated by the `fs/proc/array.c' file, present in | |
1327 | the Linux kernel tree. More details about how the information is | |
1328 | displayed can be obtained by seeing the manpage of proc(5), | |
1329 | specifically under the entry of `/proc/[pid]/stat'. */ | |
1330 | ||
1331 | /* Getting rid of the PID, since we already have it. */ | |
1332 | while (isdigit (*proc_stat)) | |
1333 | ++proc_stat; | |
1334 | ||
1335 | proc_stat = skip_spaces (proc_stat); | |
1336 | ||
1337 | /* Getting rid of the executable name, since we already have it. We | |
1338 | know that this name will be in parentheses, so we can safely look | |
1339 | for the close-paren. */ | |
1340 | while (*proc_stat != ')') | |
1341 | ++proc_stat; | |
1342 | ++proc_stat; | |
1343 | ||
1344 | proc_stat = skip_spaces (proc_stat); | |
1345 | ||
1346 | n_fields = sscanf (proc_stat, | |
1347 | "%c" /* Process state. */ | |
1348 | "%d%d%d" /* Parent PID, group ID, session ID. */ | |
1349 | "%*d%*d" /* tty_nr, tpgid (not used). */ | |
1350 | "%u" /* Flags. */ | |
1351 | "%*s%*s%*s%*s" /* minflt, cminflt, majflt, | |
1352 | cmajflt (not used). */ | |
1353 | "%*s%*s%*s%*s" /* utime, stime, cutime, | |
1354 | cstime (not used). */ | |
1355 | "%*s" /* Priority (not used). */ | |
1356 | "%ld", /* Nice. */ | |
1357 | &pr_sname, | |
1358 | &p->pr_ppid, &p->pr_pgrp, &p->pr_sid, | |
1359 | &pr_flag, | |
1360 | &pr_nice); | |
1361 | ||
1362 | if (n_fields != 6) | |
1363 | { | |
1364 | /* Again, we couldn't read the complementary information about | |
1365 | the process state. However, we already have minimal | |
1366 | information, so we just return 1 here. */ | |
1367 | do_cleanups (c); | |
1368 | return 1; | |
1369 | } | |
1370 | ||
1371 | /* Filling the structure fields. */ | |
1372 | prog_state = strchr (valid_states, pr_sname); | |
1373 | if (prog_state != NULL) | |
1374 | p->pr_state = prog_state - valid_states; | |
1375 | else | |
1376 | { | |
1377 | /* Zero means "Running". */ | |
1378 | p->pr_state = 0; | |
1379 | } | |
1380 | ||
1381 | p->pr_sname = p->pr_state > 5 ? '.' : pr_sname; | |
1382 | p->pr_zomb = p->pr_sname == 'Z'; | |
1383 | p->pr_nice = pr_nice; | |
1384 | p->pr_flag = pr_flag; | |
1385 | ||
1386 | /* Finally, obtaining the UID and GID. For that, we read and parse the | |
1387 | contents of the `/proc/PID/status' file. */ | |
1388 | xsnprintf (filename, sizeof (filename), "/proc/%d/status", (int) pid); | |
1389 | proc_status = target_fileio_read_stralloc (filename); | |
1390 | make_cleanup (xfree, proc_status); | |
1391 | ||
1392 | if (proc_status == NULL || *proc_status == '\0') | |
1393 | { | |
1394 | /* Returning 1 since we already have a bunch of information. */ | |
1395 | do_cleanups (c); | |
1396 | return 1; | |
1397 | } | |
1398 | ||
1399 | /* Extracting the UID. */ | |
1400 | tmpstr = strstr (proc_status, "Uid:"); | |
1401 | if (tmpstr != NULL) | |
1402 | { | |
1403 | /* Advancing the pointer to the beginning of the UID. */ | |
1404 | tmpstr += sizeof ("Uid:"); | |
1405 | while (*tmpstr != '\0' && !isdigit (*tmpstr)) | |
1406 | ++tmpstr; | |
1407 | ||
1408 | if (isdigit (*tmpstr)) | |
1409 | p->pr_uid = strtol (tmpstr, &tmpstr, 10); | |
1410 | } | |
1411 | ||
1412 | /* Extracting the GID. */ | |
1413 | tmpstr = strstr (proc_status, "Gid:"); | |
1414 | if (tmpstr != NULL) | |
1415 | { | |
1416 | /* Advancing the pointer to the beginning of the GID. */ | |
1417 | tmpstr += sizeof ("Gid:"); | |
1418 | while (*tmpstr != '\0' && !isdigit (*tmpstr)) | |
1419 | ++tmpstr; | |
1420 | ||
1421 | if (isdigit (*tmpstr)) | |
1422 | p->pr_gid = strtol (tmpstr, &tmpstr, 10); | |
1423 | } | |
1424 | ||
1425 | do_cleanups (c); | |
1426 | ||
1427 | return 1; | |
1428 | } | |
1429 | ||
6432734d UW |
1430 | /* Fills the "to_make_corefile_note" target vector. Builds the note |
1431 | section for a corefile, and returns it in a malloc buffer. */ | |
1432 | ||
1433 | char * | |
1434 | linux_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size, | |
1435 | linux_collect_thread_registers_ftype collect) | |
1436 | { | |
1437 | struct linux_corefile_thread_data thread_args; | |
b3ac9c77 | 1438 | struct elf_internal_linux_prpsinfo prpsinfo; |
6432734d UW |
1439 | char *note_data = NULL; |
1440 | gdb_byte *auxv; | |
1441 | int auxv_len; | |
1442 | ||
b3ac9c77 | 1443 | if (linux_fill_prpsinfo (&prpsinfo)) |
6432734d | 1444 | { |
b3ac9c77 SDJ |
1445 | if (gdbarch_elfcore_write_linux_prpsinfo_p (gdbarch)) |
1446 | { | |
1447 | note_data = gdbarch_elfcore_write_linux_prpsinfo (gdbarch, obfd, | |
1448 | note_data, note_size, | |
1449 | &prpsinfo); | |
1450 | } | |
1451 | else | |
1452 | { | |
1453 | if (gdbarch_ptr_bit (gdbarch) == 64) | |
1454 | note_data = elfcore_write_linux_prpsinfo64 (obfd, | |
1455 | note_data, note_size, | |
1456 | &prpsinfo); | |
1457 | else | |
1458 | note_data = elfcore_write_linux_prpsinfo32 (obfd, | |
1459 | note_data, note_size, | |
1460 | &prpsinfo); | |
1461 | } | |
6432734d UW |
1462 | } |
1463 | ||
1464 | /* Thread register information. */ | |
1465 | thread_args.gdbarch = gdbarch; | |
1466 | thread_args.pid = ptid_get_pid (inferior_ptid); | |
1467 | thread_args.obfd = obfd; | |
1468 | thread_args.note_data = note_data; | |
1469 | thread_args.note_size = note_size; | |
1470 | thread_args.num_notes = 0; | |
1471 | thread_args.stop_signal = find_stop_signal (); | |
1472 | thread_args.collect = collect; | |
1473 | iterate_over_threads (linux_corefile_thread_callback, &thread_args); | |
1474 | note_data = thread_args.note_data; | |
1475 | if (!note_data) | |
1476 | return NULL; | |
1477 | ||
1478 | /* Auxillary vector. */ | |
1479 | auxv_len = target_read_alloc (¤t_target, TARGET_OBJECT_AUXV, | |
1480 | NULL, &auxv); | |
1481 | if (auxv_len > 0) | |
1482 | { | |
1483 | note_data = elfcore_write_note (obfd, note_data, note_size, | |
1484 | "CORE", NT_AUXV, auxv, auxv_len); | |
1485 | xfree (auxv); | |
1486 | ||
1487 | if (!note_data) | |
1488 | return NULL; | |
1489 | } | |
1490 | ||
1491 | /* SPU information. */ | |
1492 | note_data = linux_spu_make_corefile_notes (obfd, note_data, note_size); | |
1493 | if (!note_data) | |
1494 | return NULL; | |
1495 | ||
451b7c33 TT |
1496 | /* File mappings. */ |
1497 | note_data = linux_make_mappings_corefile_notes (gdbarch, obfd, | |
1498 | note_data, note_size); | |
1499 | ||
6432734d UW |
1500 | make_cleanup (xfree, note_data); |
1501 | return note_data; | |
1502 | } | |
1503 | ||
1504 | static char * | |
1505 | linux_make_corefile_notes_1 (struct gdbarch *gdbarch, bfd *obfd, int *note_size) | |
1506 | { | |
1507 | /* FIXME: uweigand/2011-10-06: Once all GNU/Linux architectures have been | |
1508 | converted to gdbarch_core_regset_sections, we no longer need to fall back | |
1509 | to the target method at this point. */ | |
1510 | ||
1511 | if (!gdbarch_core_regset_sections (gdbarch)) | |
1512 | return target_make_corefile_notes (obfd, note_size); | |
1513 | else | |
1514 | return linux_make_corefile_notes (gdbarch, obfd, note_size, | |
1515 | linux_collect_thread_registers); | |
1516 | } | |
1517 | ||
eb14d406 SDJ |
1518 | /* Implementation of `gdbarch_gdb_signal_from_target', as defined in |
1519 | gdbarch.h. This function is not static because it is exported to | |
1520 | other -tdep files. */ | |
1521 | ||
1522 | enum gdb_signal | |
1523 | linux_gdb_signal_from_target (struct gdbarch *gdbarch, int signal) | |
1524 | { | |
1525 | switch (signal) | |
1526 | { | |
1527 | case 0: | |
1528 | return GDB_SIGNAL_0; | |
1529 | ||
1530 | case LINUX_SIGHUP: | |
1531 | return GDB_SIGNAL_HUP; | |
1532 | ||
1533 | case LINUX_SIGINT: | |
1534 | return GDB_SIGNAL_INT; | |
1535 | ||
1536 | case LINUX_SIGQUIT: | |
1537 | return GDB_SIGNAL_QUIT; | |
1538 | ||
1539 | case LINUX_SIGILL: | |
1540 | return GDB_SIGNAL_ILL; | |
1541 | ||
1542 | case LINUX_SIGTRAP: | |
1543 | return GDB_SIGNAL_TRAP; | |
1544 | ||
1545 | case LINUX_SIGABRT: | |
1546 | return GDB_SIGNAL_ABRT; | |
1547 | ||
1548 | case LINUX_SIGBUS: | |
1549 | return GDB_SIGNAL_BUS; | |
1550 | ||
1551 | case LINUX_SIGFPE: | |
1552 | return GDB_SIGNAL_FPE; | |
1553 | ||
1554 | case LINUX_SIGKILL: | |
1555 | return GDB_SIGNAL_KILL; | |
1556 | ||
1557 | case LINUX_SIGUSR1: | |
1558 | return GDB_SIGNAL_USR1; | |
1559 | ||
1560 | case LINUX_SIGSEGV: | |
1561 | return GDB_SIGNAL_SEGV; | |
1562 | ||
1563 | case LINUX_SIGUSR2: | |
1564 | return GDB_SIGNAL_USR2; | |
1565 | ||
1566 | case LINUX_SIGPIPE: | |
1567 | return GDB_SIGNAL_PIPE; | |
1568 | ||
1569 | case LINUX_SIGALRM: | |
1570 | return GDB_SIGNAL_ALRM; | |
1571 | ||
1572 | case LINUX_SIGTERM: | |
1573 | return GDB_SIGNAL_TERM; | |
1574 | ||
1575 | case LINUX_SIGCHLD: | |
1576 | return GDB_SIGNAL_CHLD; | |
1577 | ||
1578 | case LINUX_SIGCONT: | |
1579 | return GDB_SIGNAL_CONT; | |
1580 | ||
1581 | case LINUX_SIGSTOP: | |
1582 | return GDB_SIGNAL_STOP; | |
1583 | ||
1584 | case LINUX_SIGTSTP: | |
1585 | return GDB_SIGNAL_TSTP; | |
1586 | ||
1587 | case LINUX_SIGTTIN: | |
1588 | return GDB_SIGNAL_TTIN; | |
1589 | ||
1590 | case LINUX_SIGTTOU: | |
1591 | return GDB_SIGNAL_TTOU; | |
1592 | ||
1593 | case LINUX_SIGURG: | |
1594 | return GDB_SIGNAL_URG; | |
1595 | ||
1596 | case LINUX_SIGXCPU: | |
1597 | return GDB_SIGNAL_XCPU; | |
1598 | ||
1599 | case LINUX_SIGXFSZ: | |
1600 | return GDB_SIGNAL_XFSZ; | |
1601 | ||
1602 | case LINUX_SIGVTALRM: | |
1603 | return GDB_SIGNAL_VTALRM; | |
1604 | ||
1605 | case LINUX_SIGPROF: | |
1606 | return GDB_SIGNAL_PROF; | |
1607 | ||
1608 | case LINUX_SIGWINCH: | |
1609 | return GDB_SIGNAL_WINCH; | |
1610 | ||
1611 | /* No way to differentiate between SIGIO and SIGPOLL. | |
1612 | Therefore, we just handle the first one. */ | |
1613 | case LINUX_SIGIO: | |
1614 | return GDB_SIGNAL_IO; | |
1615 | ||
1616 | case LINUX_SIGPWR: | |
1617 | return GDB_SIGNAL_PWR; | |
1618 | ||
1619 | case LINUX_SIGSYS: | |
1620 | return GDB_SIGNAL_SYS; | |
1621 | ||
1622 | /* SIGRTMIN and SIGRTMAX are not continuous in <gdb/signals.def>, | |
1623 | therefore we have to handle them here. */ | |
1624 | case LINUX_SIGRTMIN: | |
1625 | return GDB_SIGNAL_REALTIME_32; | |
1626 | ||
1627 | case LINUX_SIGRTMAX: | |
1628 | return GDB_SIGNAL_REALTIME_64; | |
1629 | } | |
1630 | ||
1631 | if (signal >= LINUX_SIGRTMIN + 1 && signal <= LINUX_SIGRTMAX - 1) | |
1632 | { | |
1633 | int offset = signal - LINUX_SIGRTMIN + 1; | |
1634 | ||
1635 | return (enum gdb_signal) ((int) GDB_SIGNAL_REALTIME_33 + offset); | |
1636 | } | |
1637 | ||
1638 | return GDB_SIGNAL_UNKNOWN; | |
1639 | } | |
1640 | ||
1641 | /* Implementation of `gdbarch_gdb_signal_to_target', as defined in | |
1642 | gdbarch.h. This function is not static because it is exported to | |
1643 | other -tdep files. */ | |
1644 | ||
1645 | int | |
1646 | linux_gdb_signal_to_target (struct gdbarch *gdbarch, | |
1647 | enum gdb_signal signal) | |
1648 | { | |
1649 | switch (signal) | |
1650 | { | |
1651 | case GDB_SIGNAL_0: | |
1652 | return 0; | |
1653 | ||
1654 | case GDB_SIGNAL_HUP: | |
1655 | return LINUX_SIGHUP; | |
1656 | ||
1657 | case GDB_SIGNAL_INT: | |
1658 | return LINUX_SIGINT; | |
1659 | ||
1660 | case GDB_SIGNAL_QUIT: | |
1661 | return LINUX_SIGQUIT; | |
1662 | ||
1663 | case GDB_SIGNAL_ILL: | |
1664 | return LINUX_SIGILL; | |
1665 | ||
1666 | case GDB_SIGNAL_TRAP: | |
1667 | return LINUX_SIGTRAP; | |
1668 | ||
1669 | case GDB_SIGNAL_ABRT: | |
1670 | return LINUX_SIGABRT; | |
1671 | ||
1672 | case GDB_SIGNAL_FPE: | |
1673 | return LINUX_SIGFPE; | |
1674 | ||
1675 | case GDB_SIGNAL_KILL: | |
1676 | return LINUX_SIGKILL; | |
1677 | ||
1678 | case GDB_SIGNAL_BUS: | |
1679 | return LINUX_SIGBUS; | |
1680 | ||
1681 | case GDB_SIGNAL_SEGV: | |
1682 | return LINUX_SIGSEGV; | |
1683 | ||
1684 | case GDB_SIGNAL_SYS: | |
1685 | return LINUX_SIGSYS; | |
1686 | ||
1687 | case GDB_SIGNAL_PIPE: | |
1688 | return LINUX_SIGPIPE; | |
1689 | ||
1690 | case GDB_SIGNAL_ALRM: | |
1691 | return LINUX_SIGALRM; | |
1692 | ||
1693 | case GDB_SIGNAL_TERM: | |
1694 | return LINUX_SIGTERM; | |
1695 | ||
1696 | case GDB_SIGNAL_URG: | |
1697 | return LINUX_SIGURG; | |
1698 | ||
1699 | case GDB_SIGNAL_STOP: | |
1700 | return LINUX_SIGSTOP; | |
1701 | ||
1702 | case GDB_SIGNAL_TSTP: | |
1703 | return LINUX_SIGTSTP; | |
1704 | ||
1705 | case GDB_SIGNAL_CONT: | |
1706 | return LINUX_SIGCONT; | |
1707 | ||
1708 | case GDB_SIGNAL_CHLD: | |
1709 | return LINUX_SIGCHLD; | |
1710 | ||
1711 | case GDB_SIGNAL_TTIN: | |
1712 | return LINUX_SIGTTIN; | |
1713 | ||
1714 | case GDB_SIGNAL_TTOU: | |
1715 | return LINUX_SIGTTOU; | |
1716 | ||
1717 | case GDB_SIGNAL_IO: | |
1718 | return LINUX_SIGIO; | |
1719 | ||
1720 | case GDB_SIGNAL_XCPU: | |
1721 | return LINUX_SIGXCPU; | |
1722 | ||
1723 | case GDB_SIGNAL_XFSZ: | |
1724 | return LINUX_SIGXFSZ; | |
1725 | ||
1726 | case GDB_SIGNAL_VTALRM: | |
1727 | return LINUX_SIGVTALRM; | |
1728 | ||
1729 | case GDB_SIGNAL_PROF: | |
1730 | return LINUX_SIGPROF; | |
1731 | ||
1732 | case GDB_SIGNAL_WINCH: | |
1733 | return LINUX_SIGWINCH; | |
1734 | ||
1735 | case GDB_SIGNAL_USR1: | |
1736 | return LINUX_SIGUSR1; | |
1737 | ||
1738 | case GDB_SIGNAL_USR2: | |
1739 | return LINUX_SIGUSR2; | |
1740 | ||
1741 | case GDB_SIGNAL_PWR: | |
1742 | return LINUX_SIGPWR; | |
1743 | ||
1744 | case GDB_SIGNAL_POLL: | |
1745 | return LINUX_SIGPOLL; | |
1746 | ||
1747 | /* GDB_SIGNAL_REALTIME_32 is not continuous in <gdb/signals.def>, | |
1748 | therefore we have to handle it here. */ | |
1749 | case GDB_SIGNAL_REALTIME_32: | |
1750 | return LINUX_SIGRTMIN; | |
1751 | ||
1752 | /* Same comment applies to _64. */ | |
1753 | case GDB_SIGNAL_REALTIME_64: | |
1754 | return LINUX_SIGRTMAX; | |
1755 | } | |
1756 | ||
1757 | /* GDB_SIGNAL_REALTIME_33 to _64 are continuous. */ | |
1758 | if (signal >= GDB_SIGNAL_REALTIME_33 | |
1759 | && signal <= GDB_SIGNAL_REALTIME_63) | |
1760 | { | |
1761 | int offset = signal - GDB_SIGNAL_REALTIME_33; | |
1762 | ||
1763 | return LINUX_SIGRTMIN + 1 + offset; | |
1764 | } | |
1765 | ||
1766 | return -1; | |
1767 | } | |
1768 | ||
a5ee0f0c PA |
1769 | /* To be called from the various GDB_OSABI_LINUX handlers for the |
1770 | various GNU/Linux architectures and machine types. */ | |
1771 | ||
1772 | void | |
1773 | linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) | |
1774 | { | |
1775 | set_gdbarch_core_pid_to_str (gdbarch, linux_core_pid_to_str); | |
3030c96e | 1776 | set_gdbarch_info_proc (gdbarch, linux_info_proc); |
451b7c33 | 1777 | set_gdbarch_core_info_proc (gdbarch, linux_core_info_proc); |
35c2fab7 | 1778 | set_gdbarch_find_memory_regions (gdbarch, linux_find_memory_regions); |
6432734d | 1779 | set_gdbarch_make_corefile_notes (gdbarch, linux_make_corefile_notes_1); |
33fbcbee PA |
1780 | set_gdbarch_has_shared_address_space (gdbarch, |
1781 | linux_has_shared_address_space); | |
eb14d406 SDJ |
1782 | set_gdbarch_gdb_signal_from_target (gdbarch, |
1783 | linux_gdb_signal_from_target); | |
1784 | set_gdbarch_gdb_signal_to_target (gdbarch, | |
1785 | linux_gdb_signal_to_target); | |
a5ee0f0c | 1786 | } |
06253dd3 | 1787 | |
70221824 PA |
1788 | /* Provide a prototype to silence -Wmissing-prototypes. */ |
1789 | extern initialize_file_ftype _initialize_linux_tdep; | |
1790 | ||
06253dd3 JK |
1791 | void |
1792 | _initialize_linux_tdep (void) | |
1793 | { | |
1794 | linux_gdbarch_data_handle = | |
1795 | gdbarch_data_register_post_init (init_linux_gdbarch_data); | |
1796 | } |