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a904c024 AA |
1 | /* Target-dependent code for FreeBSD, architecture-independent. |
2 | ||
e2882c85 | 3 | Copyright (C) 2002-2018 Free Software Foundation, Inc. |
a904c024 AA |
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" | |
82372b2f | 21 | #include "auxv.h" |
a904c024 AA |
22 | #include "gdbcore.h" |
23 | #include "inferior.h" | |
24 | #include "regcache.h" | |
25 | #include "regset.h" | |
26 | #include "gdbthread.h" | |
e6cdd38e | 27 | #include "xml-syscall.h" |
57c2a98a JB |
28 | #include <sys/socket.h> |
29 | #include <arpa/inet.h> | |
a904c024 | 30 | |
a904c024 AA |
31 | #include "elf-bfd.h" |
32 | #include "fbsd-tdep.h" | |
33 | ||
34 | ||
4b654465 JB |
35 | /* FreeBSD kernels 12.0 and later include a copy of the |
36 | 'ptrace_lwpinfo' structure returned by the PT_LWPINFO ptrace | |
37 | operation in an ELF core note (NT_FREEBSD_PTLWPINFO) for each LWP. | |
38 | The constants below define the offset of field members and flags in | |
39 | this structure used by methods in this file. Note that the | |
40 | 'ptrace_lwpinfo' struct in the note is preceded by a 4 byte integer | |
41 | containing the size of the structure. */ | |
42 | ||
43 | #define LWPINFO_OFFSET 0x4 | |
44 | ||
45 | /* Offsets in ptrace_lwpinfo. */ | |
46 | #define LWPINFO_PL_FLAGS 0x8 | |
47 | #define LWPINFO64_PL_SIGINFO 0x30 | |
48 | #define LWPINFO32_PL_SIGINFO 0x2c | |
49 | ||
50 | /* Flags in pl_flags. */ | |
51 | #define PL_FLAG_SI 0x20 /* siginfo is valid */ | |
52 | ||
53 | /* Sizes of siginfo_t. */ | |
54 | #define SIZE64_SIGINFO_T 80 | |
55 | #define SIZE32_SIGINFO_T 64 | |
56 | ||
d2176225 JB |
57 | /* Offsets in data structure used in NT_FREEBSD_PROCSTAT_VMMAP core |
58 | dump notes. See <sys/user.h> for the definition of struct | |
59 | kinfo_vmentry. This data structure should have the same layout on | |
57c2a98a JB |
60 | all architectures. |
61 | ||
62 | Note that FreeBSD 7.0 used an older version of this structure | |
63 | (struct kinfo_ovmentry), but the NT_FREEBSD_PROCSTAT_VMMAP core | |
64 | dump note wasn't introduced until FreeBSD 9.2. As a result, the | |
65 | core dump note has always used the 7.1 and later structure | |
66 | format. */ | |
d2176225 JB |
67 | |
68 | #define KVE_STRUCTSIZE 0x0 | |
69 | #define KVE_START 0x8 | |
70 | #define KVE_END 0x10 | |
71 | #define KVE_OFFSET 0x18 | |
72 | #define KVE_FLAGS 0x2c | |
906b4aac | 73 | #define KVE_PROTECTION 0x38 |
d2176225 JB |
74 | #define KVE_PATH 0x88 |
75 | ||
76 | /* Flags in the 'kve_protection' field in struct kinfo_vmentry. These | |
77 | match the KVME_PROT_* constants in <sys/user.h>. */ | |
78 | ||
79 | #define KINFO_VME_PROT_READ 0x00000001 | |
80 | #define KINFO_VME_PROT_WRITE 0x00000002 | |
81 | #define KINFO_VME_PROT_EXEC 0x00000004 | |
82 | ||
83 | /* Flags in the 'kve_flags' field in struct kinfo_vmentry. These | |
84 | match the KVME_FLAG_* constants in <sys/user.h>. */ | |
85 | ||
86 | #define KINFO_VME_FLAG_COW 0x00000001 | |
87 | #define KINFO_VME_FLAG_NEEDS_COPY 0x00000002 | |
88 | #define KINFO_VME_FLAG_NOCOREDUMP 0x00000004 | |
89 | #define KINFO_VME_FLAG_SUPER 0x00000008 | |
90 | #define KINFO_VME_FLAG_GROWS_UP 0x00000010 | |
91 | #define KINFO_VME_FLAG_GROWS_DOWN 0x00000020 | |
92 | ||
93 | /* Offsets in data structure used in NT_FREEBSD_PROCSTAT_FILES core | |
94 | dump notes. See <sys/user.h> for the definition of struct | |
95 | kinfo_file. This data structure should have the same layout on all | |
57c2a98a JB |
96 | architectures. |
97 | ||
98 | Note that FreeBSD 7.0 used an older version of this structure | |
99 | (struct kinfo_ofile), but the NT_FREEBSD_PROCSTAT_FILES core dump | |
100 | note wasn't introduced until FreeBSD 9.2. As a result, the core | |
101 | dump note has always used the 7.1 and later structure format. */ | |
d2176225 JB |
102 | |
103 | #define KF_STRUCTSIZE 0x0 | |
104 | #define KF_TYPE 0x4 | |
105 | #define KF_FD 0x8 | |
57c2a98a JB |
106 | #define KF_FLAGS 0x10 |
107 | #define KF_OFFSET 0x18 | |
108 | #define KF_VNODE_TYPE 0x20 | |
109 | #define KF_SOCK_DOMAIN 0x24 | |
110 | #define KF_SOCK_TYPE 0x28 | |
111 | #define KF_SOCK_PROTOCOL 0x2c | |
112 | #define KF_SA_LOCAL 0x30 | |
113 | #define KF_SA_PEER 0xb0 | |
d2176225 JB |
114 | #define KF_PATH 0x170 |
115 | ||
116 | /* Constants for the 'kf_type' field in struct kinfo_file. These | |
117 | match the KF_TYPE_* constants in <sys/user.h>. */ | |
118 | ||
119 | #define KINFO_FILE_TYPE_VNODE 1 | |
57c2a98a JB |
120 | #define KINFO_FILE_TYPE_SOCKET 2 |
121 | #define KINFO_FILE_TYPE_PIPE 3 | |
122 | #define KINFO_FILE_TYPE_FIFO 4 | |
123 | #define KINFO_FILE_TYPE_KQUEUE 5 | |
124 | #define KINFO_FILE_TYPE_CRYPTO 6 | |
125 | #define KINFO_FILE_TYPE_MQUEUE 7 | |
126 | #define KINFO_FILE_TYPE_SHM 8 | |
127 | #define KINFO_FILE_TYPE_SEM 9 | |
128 | #define KINFO_FILE_TYPE_PTS 10 | |
129 | #define KINFO_FILE_TYPE_PROCDESC 11 | |
d2176225 JB |
130 | |
131 | /* Special values for the 'kf_fd' field in struct kinfo_file. These | |
132 | match the KF_FD_TYPE_* constants in <sys/user.h>. */ | |
133 | ||
134 | #define KINFO_FILE_FD_TYPE_CWD -1 | |
57c2a98a JB |
135 | #define KINFO_FILE_FD_TYPE_ROOT -2 |
136 | #define KINFO_FILE_FD_TYPE_JAIL -3 | |
137 | #define KINFO_FILE_FD_TYPE_TRACE -4 | |
d2176225 | 138 | #define KINFO_FILE_FD_TYPE_TEXT -5 |
57c2a98a JB |
139 | #define KINFO_FILE_FD_TYPE_CTTY -6 |
140 | ||
141 | /* Flags in the 'kf_flags' field in struct kinfo_file. These match | |
142 | the KF_FLAG_* constants in <sys/user.h>. */ | |
143 | ||
144 | #define KINFO_FILE_FLAG_READ 0x00000001 | |
145 | #define KINFO_FILE_FLAG_WRITE 0x00000002 | |
146 | #define KINFO_FILE_FLAG_APPEND 0x00000004 | |
147 | #define KINFO_FILE_FLAG_ASYNC 0x00000008 | |
148 | #define KINFO_FILE_FLAG_FSYNC 0x00000010 | |
149 | #define KINFO_FILE_FLAG_NONBLOCK 0x00000020 | |
150 | #define KINFO_FILE_FLAG_DIRECT 0x00000040 | |
151 | #define KINFO_FILE_FLAG_HASLOCK 0x00000080 | |
152 | #define KINFO_FILE_FLAG_EXEC 0x00004000 | |
153 | ||
154 | /* Constants for the 'kf_vnode_type' field in struct kinfo_file. | |
155 | These match the KF_VTYPE_* constants in <sys/user.h>. */ | |
156 | ||
157 | #define KINFO_FILE_VTYPE_VREG 1 | |
158 | #define KINFO_FILE_VTYPE_VDIR 2 | |
159 | #define KINFO_FILE_VTYPE_VCHR 4 | |
160 | #define KINFO_FILE_VTYPE_VLNK 5 | |
161 | #define KINFO_FILE_VTYPE_VSOCK 6 | |
162 | #define KINFO_FILE_VTYPE_VFIFO 7 | |
163 | ||
164 | /* Constants for socket address families. These match AF_* constants | |
165 | in <sys/socket.h>. */ | |
166 | ||
167 | #define FBSD_AF_UNIX 1 | |
168 | #define FBSD_AF_INET 2 | |
169 | #define FBSD_AF_INET6 28 | |
170 | ||
171 | /* Constants for socket types. These match SOCK_* constants in | |
172 | <sys/socket.h>. */ | |
173 | ||
174 | #define FBSD_SOCK_STREAM 1 | |
175 | #define FBSD_SOCK_DGRAM 2 | |
176 | #define FBSD_SOCK_SEQPACKET 5 | |
177 | ||
178 | /* Constants for IP protocols. These match IPPROTO_* constants in | |
179 | <netinet/in.h>. */ | |
180 | ||
181 | #define FBSD_IPPROTO_ICMP 1 | |
182 | #define FBSD_IPPROTO_TCP 6 | |
183 | #define FBSD_IPPROTO_UDP 17 | |
184 | #define FBSD_IPPROTO_SCTP 132 | |
185 | ||
186 | /* Socket address structures. These have the same layout on all | |
187 | FreeBSD architectures. In addition, multibyte fields such as IP | |
188 | addresses are always stored in network byte order. */ | |
189 | ||
190 | struct fbsd_sockaddr_in | |
191 | { | |
192 | uint8_t sin_len; | |
193 | uint8_t sin_family; | |
194 | uint8_t sin_port[2]; | |
195 | uint8_t sin_addr[4]; | |
196 | char sin_zero[8]; | |
197 | }; | |
198 | ||
199 | struct fbsd_sockaddr_in6 | |
200 | { | |
201 | uint8_t sin6_len; | |
202 | uint8_t sin6_family; | |
203 | uint8_t sin6_port[2]; | |
204 | uint32_t sin6_flowinfo; | |
205 | uint8_t sin6_addr[16]; | |
206 | uint32_t sin6_scope_id; | |
207 | }; | |
208 | ||
209 | struct fbsd_sockaddr_un | |
210 | { | |
211 | uint8_t sun_len; | |
212 | uint8_t sun_family; | |
213 | char sun_path[104]; | |
214 | }; | |
d2176225 JB |
215 | |
216 | /* Number of 32-bit words in a signal set. This matches _SIG_WORDS in | |
217 | <sys/_sigset.h> and is the same value on all architectures. */ | |
218 | ||
219 | #define SIG_WORDS 4 | |
220 | ||
221 | /* Offsets in data structure used in NT_FREEBSD_PROCSTAT_PROC core | |
222 | dump notes. See <sys/user.h> for the definition of struct | |
223 | kinfo_proc. This data structure has different layouts on different | |
224 | architectures mostly due to ILP32 vs LP64. However, FreeBSD/i386 | |
225 | uses a 32-bit time_t while all other architectures use a 64-bit | |
226 | time_t. | |
227 | ||
228 | The core dump note actually contains one kinfo_proc structure for | |
229 | each thread, but all of the process-wide data can be obtained from | |
230 | the first structure. One result of this note's format is that some | |
231 | of the process-wide status available in the native target method | |
232 | from the kern.proc.pid.<pid> sysctl such as ki_stat and ki_siglist | |
233 | is not available from a core dump. Instead, the per-thread data | |
234 | structures contain the value of these fields for individual | |
235 | threads. */ | |
236 | ||
237 | struct kinfo_proc_layout | |
238 | { | |
239 | /* Offsets of struct kinfo_proc members. */ | |
240 | int ki_layout; | |
241 | int ki_pid; | |
242 | int ki_ppid; | |
243 | int ki_pgid; | |
244 | int ki_tpgid; | |
245 | int ki_sid; | |
246 | int ki_tdev_freebsd11; | |
247 | int ki_sigignore; | |
248 | int ki_sigcatch; | |
249 | int ki_uid; | |
250 | int ki_ruid; | |
251 | int ki_svuid; | |
252 | int ki_rgid; | |
253 | int ki_svgid; | |
254 | int ki_ngroups; | |
255 | int ki_groups; | |
256 | int ki_size; | |
257 | int ki_rssize; | |
258 | int ki_tsize; | |
259 | int ki_dsize; | |
260 | int ki_ssize; | |
261 | int ki_start; | |
262 | int ki_nice; | |
263 | int ki_comm; | |
264 | int ki_tdev; | |
265 | int ki_rusage; | |
266 | int ki_rusage_ch; | |
267 | ||
268 | /* Offsets of struct rusage members. */ | |
269 | int ru_utime; | |
270 | int ru_stime; | |
271 | int ru_maxrss; | |
272 | int ru_minflt; | |
273 | int ru_majflt; | |
274 | }; | |
275 | ||
276 | const struct kinfo_proc_layout kinfo_proc_layout_32 = | |
277 | { | |
278 | .ki_layout = 0x4, | |
279 | .ki_pid = 0x28, | |
280 | .ki_ppid = 0x2c, | |
281 | .ki_pgid = 0x30, | |
282 | .ki_tpgid = 0x34, | |
283 | .ki_sid = 0x38, | |
284 | .ki_tdev_freebsd11 = 0x44, | |
285 | .ki_sigignore = 0x68, | |
286 | .ki_sigcatch = 0x78, | |
287 | .ki_uid = 0x88, | |
288 | .ki_ruid = 0x8c, | |
289 | .ki_svuid = 0x90, | |
290 | .ki_rgid = 0x94, | |
291 | .ki_svgid = 0x98, | |
292 | .ki_ngroups = 0x9c, | |
293 | .ki_groups = 0xa0, | |
294 | .ki_size = 0xe0, | |
295 | .ki_rssize = 0xe4, | |
296 | .ki_tsize = 0xec, | |
297 | .ki_dsize = 0xf0, | |
298 | .ki_ssize = 0xf4, | |
299 | .ki_start = 0x118, | |
300 | .ki_nice = 0x145, | |
301 | .ki_comm = 0x17f, | |
302 | .ki_tdev = 0x1f0, | |
303 | .ki_rusage = 0x220, | |
304 | .ki_rusage_ch = 0x278, | |
305 | ||
306 | .ru_utime = 0x0, | |
307 | .ru_stime = 0x10, | |
308 | .ru_maxrss = 0x20, | |
309 | .ru_minflt = 0x30, | |
310 | .ru_majflt = 0x34, | |
311 | }; | |
312 | ||
313 | const struct kinfo_proc_layout kinfo_proc_layout_i386 = | |
314 | { | |
315 | .ki_layout = 0x4, | |
316 | .ki_pid = 0x28, | |
317 | .ki_ppid = 0x2c, | |
318 | .ki_pgid = 0x30, | |
319 | .ki_tpgid = 0x34, | |
320 | .ki_sid = 0x38, | |
321 | .ki_tdev_freebsd11 = 0x44, | |
322 | .ki_sigignore = 0x68, | |
323 | .ki_sigcatch = 0x78, | |
324 | .ki_uid = 0x88, | |
325 | .ki_ruid = 0x8c, | |
326 | .ki_svuid = 0x90, | |
327 | .ki_rgid = 0x94, | |
328 | .ki_svgid = 0x98, | |
329 | .ki_ngroups = 0x9c, | |
330 | .ki_groups = 0xa0, | |
331 | .ki_size = 0xe0, | |
332 | .ki_rssize = 0xe4, | |
333 | .ki_tsize = 0xec, | |
334 | .ki_dsize = 0xf0, | |
335 | .ki_ssize = 0xf4, | |
336 | .ki_start = 0x118, | |
337 | .ki_nice = 0x135, | |
338 | .ki_comm = 0x16f, | |
339 | .ki_tdev = 0x1e0, | |
340 | .ki_rusage = 0x210, | |
341 | .ki_rusage_ch = 0x258, | |
342 | ||
343 | .ru_utime = 0x0, | |
344 | .ru_stime = 0x8, | |
345 | .ru_maxrss = 0x10, | |
346 | .ru_minflt = 0x20, | |
347 | .ru_majflt = 0x24, | |
348 | }; | |
349 | ||
350 | const struct kinfo_proc_layout kinfo_proc_layout_64 = | |
351 | { | |
352 | .ki_layout = 0x4, | |
353 | .ki_pid = 0x48, | |
354 | .ki_ppid = 0x4c, | |
355 | .ki_pgid = 0x50, | |
356 | .ki_tpgid = 0x54, | |
357 | .ki_sid = 0x58, | |
358 | .ki_tdev_freebsd11 = 0x64, | |
359 | .ki_sigignore = 0x88, | |
360 | .ki_sigcatch = 0x98, | |
361 | .ki_uid = 0xa8, | |
362 | .ki_ruid = 0xac, | |
363 | .ki_svuid = 0xb0, | |
364 | .ki_rgid = 0xb4, | |
365 | .ki_svgid = 0xb8, | |
366 | .ki_ngroups = 0xbc, | |
367 | .ki_groups = 0xc0, | |
368 | .ki_size = 0x100, | |
369 | .ki_rssize = 0x108, | |
370 | .ki_tsize = 0x118, | |
371 | .ki_dsize = 0x120, | |
372 | .ki_ssize = 0x128, | |
373 | .ki_start = 0x150, | |
374 | .ki_nice = 0x185, | |
375 | .ki_comm = 0x1bf, | |
376 | .ki_tdev = 0x230, | |
377 | .ki_rusage = 0x260, | |
378 | .ki_rusage_ch = 0x2f0, | |
379 | ||
380 | .ru_utime = 0x0, | |
381 | .ru_stime = 0x10, | |
382 | .ru_maxrss = 0x20, | |
383 | .ru_minflt = 0x40, | |
384 | .ru_majflt = 0x48, | |
385 | }; | |
386 | ||
762c974a JB |
387 | static struct gdbarch_data *fbsd_gdbarch_data_handle; |
388 | ||
389 | struct fbsd_gdbarch_data | |
390 | { | |
391 | struct type *siginfo_type; | |
392 | }; | |
393 | ||
394 | static void * | |
395 | init_fbsd_gdbarch_data (struct gdbarch *gdbarch) | |
396 | { | |
397 | return GDBARCH_OBSTACK_ZALLOC (gdbarch, struct fbsd_gdbarch_data); | |
398 | } | |
399 | ||
400 | static struct fbsd_gdbarch_data * | |
401 | get_fbsd_gdbarch_data (struct gdbarch *gdbarch) | |
402 | { | |
403 | return ((struct fbsd_gdbarch_data *) | |
404 | gdbarch_data (gdbarch, fbsd_gdbarch_data_handle)); | |
405 | } | |
406 | ||
79117428 JB |
407 | /* This is how we want PTIDs from core files to be printed. */ |
408 | ||
7a114964 | 409 | static const char * |
79117428 JB |
410 | fbsd_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid) |
411 | { | |
412 | static char buf[80]; | |
413 | ||
e38504b3 | 414 | if (ptid.lwp () != 0) |
79117428 | 415 | { |
e38504b3 | 416 | xsnprintf (buf, sizeof buf, "LWP %ld", ptid.lwp ()); |
79117428 JB |
417 | return buf; |
418 | } | |
419 | ||
420 | return normal_pid_to_str (ptid); | |
421 | } | |
422 | ||
423 | /* Extract the name assigned to a thread from a core. Returns the | |
424 | string in a static buffer. */ | |
425 | ||
426 | static const char * | |
427 | fbsd_core_thread_name (struct gdbarch *gdbarch, struct thread_info *thr) | |
428 | { | |
429 | static char buf[80]; | |
430 | struct bfd_section *section; | |
431 | bfd_size_type size; | |
79117428 | 432 | |
e38504b3 | 433 | if (thr->ptid.lwp () != 0) |
79117428 JB |
434 | { |
435 | /* FreeBSD includes a NT_FREEBSD_THRMISC note for each thread | |
436 | whose contents are defined by a "struct thrmisc" declared in | |
437 | <sys/procfs.h> on FreeBSD. The per-thread name is stored as | |
438 | a null-terminated string as the first member of the | |
439 | structure. Rather than define the full structure here, just | |
440 | extract the null-terminated name from the start of the | |
441 | note. */ | |
2af9fc44 JB |
442 | thread_section_name section_name (".thrmisc", thr->ptid); |
443 | ||
444 | section = bfd_get_section_by_name (core_bfd, section_name.c_str ()); | |
79117428 JB |
445 | if (section != NULL && bfd_section_size (core_bfd, section) > 0) |
446 | { | |
447 | /* Truncate the name if it is longer than "buf". */ | |
448 | size = bfd_section_size (core_bfd, section); | |
449 | if (size > sizeof buf - 1) | |
450 | size = sizeof buf - 1; | |
451 | if (bfd_get_section_contents (core_bfd, section, buf, (file_ptr) 0, | |
452 | size) | |
453 | && buf[0] != '\0') | |
454 | { | |
455 | buf[size] = '\0'; | |
456 | ||
457 | /* Note that each thread will report the process command | |
458 | as its thread name instead of an empty name if a name | |
459 | has not been set explicitly. Return a NULL name in | |
460 | that case. */ | |
461 | if (strcmp (buf, elf_tdata (core_bfd)->core->program) != 0) | |
462 | return buf; | |
463 | } | |
464 | } | |
465 | } | |
466 | ||
467 | return NULL; | |
468 | } | |
469 | ||
4b654465 JB |
470 | /* Implement the "core_xfer_siginfo" gdbarch method. */ |
471 | ||
472 | static LONGEST | |
473 | fbsd_core_xfer_siginfo (struct gdbarch *gdbarch, gdb_byte *readbuf, | |
474 | ULONGEST offset, ULONGEST len) | |
475 | { | |
476 | size_t siginfo_size; | |
477 | ||
a181c0bf | 478 | if (gdbarch_long_bit (gdbarch) == 32) |
4b654465 JB |
479 | siginfo_size = SIZE32_SIGINFO_T; |
480 | else | |
481 | siginfo_size = SIZE64_SIGINFO_T; | |
482 | if (offset > siginfo_size) | |
483 | return -1; | |
484 | ||
485 | thread_section_name section_name (".note.freebsdcore.lwpinfo", inferior_ptid); | |
486 | asection *section = bfd_get_section_by_name (core_bfd, section_name.c_str ()); | |
487 | if (section == NULL) | |
488 | return -1; | |
489 | ||
490 | gdb_byte buf[4]; | |
491 | if (!bfd_get_section_contents (core_bfd, section, buf, | |
492 | LWPINFO_OFFSET + LWPINFO_PL_FLAGS, 4)) | |
493 | return -1; | |
494 | ||
495 | int pl_flags = extract_signed_integer (buf, 4, gdbarch_byte_order (gdbarch)); | |
496 | if (!(pl_flags & PL_FLAG_SI)) | |
497 | return -1; | |
498 | ||
499 | if (offset + len > siginfo_size) | |
500 | len = siginfo_size - offset; | |
501 | ||
502 | ULONGEST siginfo_offset; | |
a181c0bf | 503 | if (gdbarch_long_bit (gdbarch) == 32) |
4b654465 JB |
504 | siginfo_offset = LWPINFO_OFFSET + LWPINFO32_PL_SIGINFO; |
505 | else | |
506 | siginfo_offset = LWPINFO_OFFSET + LWPINFO64_PL_SIGINFO; | |
507 | ||
508 | if (!bfd_get_section_contents (core_bfd, section, readbuf, | |
509 | siginfo_offset + offset, len)) | |
510 | return -1; | |
511 | ||
512 | return len; | |
513 | } | |
514 | ||
a904c024 AA |
515 | static int |
516 | find_signalled_thread (struct thread_info *info, void *data) | |
517 | { | |
518 | if (info->suspend.stop_signal != GDB_SIGNAL_0 | |
e99b03dc | 519 | && info->ptid.pid () == inferior_ptid.pid ()) |
a904c024 AA |
520 | return 1; |
521 | ||
522 | return 0; | |
523 | } | |
524 | ||
20a0aab3 JB |
525 | /* Structure for passing information from |
526 | fbsd_collect_thread_registers via an iterator to | |
527 | fbsd_collect_regset_section_cb. */ | |
a904c024 AA |
528 | |
529 | struct fbsd_collect_regset_section_cb_data | |
530 | { | |
531 | const struct regcache *regcache; | |
532 | bfd *obfd; | |
533 | char *note_data; | |
534 | int *note_size; | |
20a0aab3 JB |
535 | unsigned long lwp; |
536 | enum gdb_signal stop_signal; | |
537 | int abort_iteration; | |
a904c024 AA |
538 | }; |
539 | ||
540 | static void | |
a616bb94 AH |
541 | fbsd_collect_regset_section_cb (const char *sect_name, int supply_size, |
542 | int collect_size, const struct regset *regset, | |
a904c024 AA |
543 | const char *human_name, void *cb_data) |
544 | { | |
545 | char *buf; | |
7567e115 SM |
546 | struct fbsd_collect_regset_section_cb_data *data |
547 | = (struct fbsd_collect_regset_section_cb_data *) cb_data; | |
a904c024 | 548 | |
20a0aab3 JB |
549 | if (data->abort_iteration) |
550 | return; | |
551 | ||
a904c024 AA |
552 | gdb_assert (regset->collect_regset); |
553 | ||
a616bb94 AH |
554 | buf = (char *) xmalloc (collect_size); |
555 | regset->collect_regset (regset, data->regcache, -1, buf, collect_size); | |
a904c024 AA |
556 | |
557 | /* PRSTATUS still needs to be treated specially. */ | |
558 | if (strcmp (sect_name, ".reg") == 0) | |
559 | data->note_data = (char *) elfcore_write_prstatus | |
20a0aab3 JB |
560 | (data->obfd, data->note_data, data->note_size, data->lwp, |
561 | gdb_signal_to_host (data->stop_signal), buf); | |
a904c024 AA |
562 | else |
563 | data->note_data = (char *) elfcore_write_register_note | |
564 | (data->obfd, data->note_data, data->note_size, | |
a616bb94 | 565 | sect_name, buf, collect_size); |
a904c024 | 566 | xfree (buf); |
20a0aab3 JB |
567 | |
568 | if (data->note_data == NULL) | |
569 | data->abort_iteration = 1; | |
570 | } | |
571 | ||
572 | /* Records the thread's register state for the corefile note | |
573 | section. */ | |
574 | ||
575 | static char * | |
576 | fbsd_collect_thread_registers (const struct regcache *regcache, | |
577 | ptid_t ptid, bfd *obfd, | |
578 | char *note_data, int *note_size, | |
579 | enum gdb_signal stop_signal) | |
580 | { | |
ac7936df | 581 | struct gdbarch *gdbarch = regcache->arch (); |
20a0aab3 JB |
582 | struct fbsd_collect_regset_section_cb_data data; |
583 | ||
584 | data.regcache = regcache; | |
585 | data.obfd = obfd; | |
586 | data.note_data = note_data; | |
587 | data.note_size = note_size; | |
588 | data.stop_signal = stop_signal; | |
589 | data.abort_iteration = 0; | |
e38504b3 | 590 | data.lwp = ptid.lwp (); |
20a0aab3 JB |
591 | |
592 | gdbarch_iterate_over_regset_sections (gdbarch, | |
593 | fbsd_collect_regset_section_cb, | |
594 | &data, regcache); | |
595 | return data.note_data; | |
596 | } | |
597 | ||
598 | struct fbsd_corefile_thread_data | |
599 | { | |
600 | struct gdbarch *gdbarch; | |
601 | bfd *obfd; | |
602 | char *note_data; | |
603 | int *note_size; | |
604 | enum gdb_signal stop_signal; | |
605 | }; | |
606 | ||
607 | /* Records the thread's register state for the corefile note | |
608 | section. */ | |
609 | ||
610 | static void | |
611 | fbsd_corefile_thread (struct thread_info *info, | |
612 | struct fbsd_corefile_thread_data *args) | |
613 | { | |
20a0aab3 JB |
614 | struct regcache *regcache; |
615 | ||
616 | regcache = get_thread_arch_regcache (info->ptid, args->gdbarch); | |
617 | ||
20a0aab3 | 618 | target_fetch_registers (regcache, -1); |
20a0aab3 JB |
619 | |
620 | args->note_data = fbsd_collect_thread_registers | |
621 | (regcache, info->ptid, args->obfd, args->note_data, | |
622 | args->note_size, args->stop_signal); | |
a904c024 AA |
623 | } |
624 | ||
739ab2e9 SS |
625 | /* Return a byte_vector containing the contents of a core dump note |
626 | for the target object of type OBJECT. If STRUCTSIZE is non-zero, | |
627 | the data is prefixed with a 32-bit integer size to match the format | |
628 | used in FreeBSD NT_PROCSTAT_* notes. */ | |
629 | ||
630 | static gdb::optional<gdb::byte_vector> | |
631 | fbsd_make_note_desc (enum target_object object, uint32_t structsize) | |
632 | { | |
633 | gdb::optional<gdb::byte_vector> buf = | |
634 | target_read_alloc (current_top_target (), object, NULL); | |
635 | if (!buf || buf->empty ()) | |
636 | return {}; | |
637 | ||
638 | if (structsize == 0) | |
639 | return buf; | |
640 | ||
641 | gdb::byte_vector desc (sizeof (structsize) + buf->size ()); | |
642 | memcpy (desc.data (), &structsize, sizeof (structsize)); | |
643 | memcpy (desc.data () + sizeof (structsize), buf->data (), buf->size ()); | |
644 | return desc; | |
645 | } | |
646 | ||
a904c024 AA |
647 | /* Create appropriate note sections for a corefile, returning them in |
648 | allocated memory. */ | |
649 | ||
650 | static char * | |
651 | fbsd_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size) | |
652 | { | |
20a0aab3 JB |
653 | struct fbsd_corefile_thread_data thread_args; |
654 | char *note_data = NULL; | |
a904c024 | 655 | Elf_Internal_Ehdr *i_ehdrp; |
20a0aab3 | 656 | struct thread_info *curr_thr, *signalled_thr, *thr; |
a904c024 AA |
657 | |
658 | /* Put a "FreeBSD" label in the ELF header. */ | |
659 | i_ehdrp = elf_elfheader (obfd); | |
660 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_FREEBSD; | |
661 | ||
662 | gdb_assert (gdbarch_iterate_over_regset_sections_p (gdbarch)); | |
663 | ||
a904c024 AA |
664 | if (get_exec_file (0)) |
665 | { | |
666 | const char *fname = lbasename (get_exec_file (0)); | |
667 | char *psargs = xstrdup (fname); | |
668 | ||
669 | if (get_inferior_args ()) | |
670 | psargs = reconcat (psargs, psargs, " ", get_inferior_args (), | |
671 | (char *) NULL); | |
672 | ||
673 | note_data = elfcore_write_prpsinfo (obfd, note_data, note_size, | |
674 | fname, psargs); | |
675 | } | |
676 | ||
20a0aab3 JB |
677 | /* Thread register information. */ |
678 | TRY | |
679 | { | |
680 | update_thread_list (); | |
681 | } | |
682 | CATCH (e, RETURN_MASK_ERROR) | |
683 | { | |
684 | exception_print (gdb_stderr, e); | |
685 | } | |
686 | END_CATCH | |
687 | ||
688 | /* Like the kernel, prefer dumping the signalled thread first. | |
689 | "First thread" is what tools use to infer the signalled thread. | |
690 | In case there's more than one signalled thread, prefer the | |
691 | current thread, if it is signalled. */ | |
692 | curr_thr = inferior_thread (); | |
693 | if (curr_thr->suspend.stop_signal != GDB_SIGNAL_0) | |
694 | signalled_thr = curr_thr; | |
695 | else | |
696 | { | |
697 | signalled_thr = iterate_over_threads (find_signalled_thread, NULL); | |
698 | if (signalled_thr == NULL) | |
699 | signalled_thr = curr_thr; | |
700 | } | |
701 | ||
702 | thread_args.gdbarch = gdbarch; | |
703 | thread_args.obfd = obfd; | |
704 | thread_args.note_data = note_data; | |
705 | thread_args.note_size = note_size; | |
706 | thread_args.stop_signal = signalled_thr->suspend.stop_signal; | |
707 | ||
708 | fbsd_corefile_thread (signalled_thr, &thread_args); | |
709 | ALL_NON_EXITED_THREADS (thr) | |
710 | { | |
711 | if (thr == signalled_thr) | |
712 | continue; | |
e99b03dc | 713 | if (thr->ptid.pid () != inferior_ptid.pid ()) |
20a0aab3 JB |
714 | continue; |
715 | ||
716 | fbsd_corefile_thread (thr, &thread_args); | |
717 | } | |
718 | ||
719 | note_data = thread_args.note_data; | |
720 | ||
739ab2e9 SS |
721 | /* Auxiliary vector. */ |
722 | uint32_t structsize = gdbarch_ptr_bit (gdbarch) / 4; /* Elf_Auxinfo */ | |
723 | gdb::optional<gdb::byte_vector> note_desc = | |
724 | fbsd_make_note_desc (TARGET_OBJECT_AUXV, structsize); | |
725 | if (note_desc && !note_desc->empty ()) | |
726 | { | |
727 | note_data = elfcore_write_note (obfd, note_data, note_size, "FreeBSD", | |
728 | NT_FREEBSD_PROCSTAT_AUXV, | |
729 | note_desc->data (), note_desc->size ()); | |
730 | if (!note_data) | |
731 | return NULL; | |
732 | } | |
733 | ||
734 | /* Virtual memory mappings. */ | |
735 | note_desc = fbsd_make_note_desc (TARGET_OBJECT_FREEBSD_VMMAP, 0); | |
736 | if (note_desc && !note_desc->empty ()) | |
737 | { | |
738 | note_data = elfcore_write_note (obfd, note_data, note_size, "FreeBSD", | |
739 | NT_FREEBSD_PROCSTAT_VMMAP, | |
740 | note_desc->data (), note_desc->size ()); | |
741 | if (!note_data) | |
742 | return NULL; | |
743 | } | |
744 | ||
745 | note_desc = fbsd_make_note_desc (TARGET_OBJECT_FREEBSD_PS_STRINGS, 0); | |
746 | if (note_desc && !note_desc->empty ()) | |
747 | { | |
748 | note_data = elfcore_write_note (obfd, note_data, note_size, "FreeBSD", | |
749 | NT_FREEBSD_PROCSTAT_PSSTRINGS, | |
750 | note_desc->data (), note_desc->size ()); | |
751 | if (!note_data) | |
752 | return NULL; | |
753 | } | |
754 | ||
a904c024 AA |
755 | return note_data; |
756 | } | |
757 | ||
57c2a98a JB |
758 | /* Helper function to generate the file descriptor description for a |
759 | single open file in 'info proc files'. */ | |
760 | ||
761 | static const char * | |
762 | fbsd_file_fd (int kf_fd) | |
763 | { | |
764 | switch (kf_fd) | |
765 | { | |
766 | case KINFO_FILE_FD_TYPE_CWD: | |
767 | return "cwd"; | |
768 | case KINFO_FILE_FD_TYPE_ROOT: | |
769 | return "root"; | |
770 | case KINFO_FILE_FD_TYPE_JAIL: | |
771 | return "jail"; | |
772 | case KINFO_FILE_FD_TYPE_TRACE: | |
773 | return "trace"; | |
774 | case KINFO_FILE_FD_TYPE_TEXT: | |
775 | return "text"; | |
776 | case KINFO_FILE_FD_TYPE_CTTY: | |
777 | return "ctty"; | |
778 | default: | |
779 | return int_string (kf_fd, 10, 1, 0, 0); | |
780 | } | |
781 | } | |
782 | ||
783 | /* Helper function to generate the file type for a single open file in | |
784 | 'info proc files'. */ | |
785 | ||
786 | static const char * | |
787 | fbsd_file_type (int kf_type, int kf_vnode_type) | |
788 | { | |
789 | switch (kf_type) | |
790 | { | |
791 | case KINFO_FILE_TYPE_VNODE: | |
792 | switch (kf_vnode_type) | |
793 | { | |
794 | case KINFO_FILE_VTYPE_VREG: | |
795 | return "file"; | |
796 | case KINFO_FILE_VTYPE_VDIR: | |
797 | return "dir"; | |
798 | case KINFO_FILE_VTYPE_VCHR: | |
799 | return "chr"; | |
800 | case KINFO_FILE_VTYPE_VLNK: | |
801 | return "link"; | |
802 | case KINFO_FILE_VTYPE_VSOCK: | |
803 | return "socket"; | |
804 | case KINFO_FILE_VTYPE_VFIFO: | |
805 | return "fifo"; | |
806 | default: | |
807 | { | |
808 | char *str = get_print_cell (); | |
809 | ||
810 | xsnprintf (str, PRINT_CELL_SIZE, "vn:%d", kf_vnode_type); | |
811 | return str; | |
812 | } | |
813 | } | |
814 | case KINFO_FILE_TYPE_SOCKET: | |
815 | return "socket"; | |
816 | case KINFO_FILE_TYPE_PIPE: | |
817 | return "pipe"; | |
818 | case KINFO_FILE_TYPE_FIFO: | |
819 | return "fifo"; | |
820 | case KINFO_FILE_TYPE_KQUEUE: | |
821 | return "kqueue"; | |
822 | case KINFO_FILE_TYPE_CRYPTO: | |
823 | return "crypto"; | |
824 | case KINFO_FILE_TYPE_MQUEUE: | |
825 | return "mqueue"; | |
826 | case KINFO_FILE_TYPE_SHM: | |
827 | return "shm"; | |
828 | case KINFO_FILE_TYPE_SEM: | |
829 | return "sem"; | |
830 | case KINFO_FILE_TYPE_PTS: | |
831 | return "pts"; | |
832 | case KINFO_FILE_TYPE_PROCDESC: | |
833 | return "proc"; | |
834 | default: | |
835 | return int_string (kf_type, 10, 1, 0, 0); | |
836 | } | |
837 | } | |
838 | ||
839 | /* Helper function to generate the file flags for a single open file in | |
840 | 'info proc files'. */ | |
841 | ||
842 | static const char * | |
843 | fbsd_file_flags (int kf_flags) | |
844 | { | |
845 | static char file_flags[10]; | |
846 | ||
847 | file_flags[0] = (kf_flags & KINFO_FILE_FLAG_READ) ? 'r' : '-'; | |
848 | file_flags[1] = (kf_flags & KINFO_FILE_FLAG_WRITE) ? 'w' : '-'; | |
849 | file_flags[2] = (kf_flags & KINFO_FILE_FLAG_EXEC) ? 'x' : '-'; | |
850 | file_flags[3] = (kf_flags & KINFO_FILE_FLAG_APPEND) ? 'a' : '-'; | |
851 | file_flags[4] = (kf_flags & KINFO_FILE_FLAG_ASYNC) ? 's' : '-'; | |
852 | file_flags[5] = (kf_flags & KINFO_FILE_FLAG_FSYNC) ? 'f' : '-'; | |
853 | file_flags[6] = (kf_flags & KINFO_FILE_FLAG_NONBLOCK) ? 'n' : '-'; | |
854 | file_flags[7] = (kf_flags & KINFO_FILE_FLAG_DIRECT) ? 'd' : '-'; | |
855 | file_flags[8] = (kf_flags & KINFO_FILE_FLAG_HASLOCK) ? 'l' : '-'; | |
856 | file_flags[9] = '\0'; | |
857 | ||
858 | return file_flags; | |
859 | } | |
860 | ||
861 | /* Helper function to generate the name of an IP protocol. */ | |
862 | ||
863 | static const char * | |
864 | fbsd_ipproto (int protocol) | |
865 | { | |
866 | switch (protocol) | |
867 | { | |
868 | case FBSD_IPPROTO_ICMP: | |
869 | return "icmp"; | |
870 | case FBSD_IPPROTO_TCP: | |
871 | return "tcp"; | |
872 | case FBSD_IPPROTO_UDP: | |
873 | return "udp"; | |
874 | case FBSD_IPPROTO_SCTP: | |
875 | return "sctp"; | |
876 | default: | |
877 | { | |
878 | char *str = get_print_cell (); | |
879 | ||
880 | xsnprintf (str, PRINT_CELL_SIZE, "ip<%d>", protocol); | |
881 | return str; | |
882 | } | |
883 | } | |
884 | } | |
885 | ||
886 | /* Helper function to print out an IPv4 socket address. */ | |
887 | ||
888 | static void | |
889 | fbsd_print_sockaddr_in (const void *sockaddr) | |
890 | { | |
891 | const struct fbsd_sockaddr_in *sin = | |
892 | reinterpret_cast<const struct fbsd_sockaddr_in *> (sockaddr); | |
893 | char buf[INET_ADDRSTRLEN]; | |
894 | ||
07147793 | 895 | if (inet_ntop (AF_INET, sin->sin_addr, buf, sizeof buf) == nullptr) |
57c2a98a JB |
896 | error (_("Failed to format IPv4 address")); |
897 | printf_filtered ("%s:%u", buf, | |
898 | (sin->sin_port[0] << 8) | sin->sin_port[1]); | |
899 | } | |
900 | ||
901 | /* Helper function to print out an IPv6 socket address. */ | |
902 | ||
903 | static void | |
904 | fbsd_print_sockaddr_in6 (const void *sockaddr) | |
905 | { | |
906 | const struct fbsd_sockaddr_in6 *sin6 = | |
907 | reinterpret_cast<const struct fbsd_sockaddr_in6 *> (sockaddr); | |
908 | char buf[INET6_ADDRSTRLEN]; | |
909 | ||
07147793 | 910 | if (inet_ntop (AF_INET6, sin6->sin6_addr, buf, sizeof buf) == nullptr) |
57c2a98a JB |
911 | error (_("Failed to format IPv6 address")); |
912 | printf_filtered ("%s.%u", buf, | |
913 | (sin6->sin6_port[0] << 8) | sin6->sin6_port[1]); | |
914 | } | |
915 | ||
916 | /* See fbsd-tdep.h. */ | |
917 | ||
918 | void | |
919 | fbsd_info_proc_files_header () | |
920 | { | |
921 | printf_filtered (_("Open files:\n\n")); | |
922 | printf_filtered (" %6s %6s %10s %9s %s\n", | |
923 | "FD", "Type", "Offset", "Flags ", "Name"); | |
924 | } | |
925 | ||
926 | /* See fbsd-tdep.h. */ | |
927 | ||
928 | void | |
929 | fbsd_info_proc_files_entry (int kf_type, int kf_fd, int kf_flags, | |
930 | LONGEST kf_offset, int kf_vnode_type, | |
931 | int kf_sock_domain, int kf_sock_type, | |
932 | int kf_sock_protocol, const void *kf_sa_local, | |
933 | const void *kf_sa_peer, const void *kf_path) | |
934 | { | |
935 | printf_filtered (" %6s %6s %10s %8s ", | |
936 | fbsd_file_fd (kf_fd), | |
937 | fbsd_file_type (kf_type, kf_vnode_type), | |
938 | kf_offset > -1 ? hex_string (kf_offset) : "-", | |
939 | fbsd_file_flags (kf_flags)); | |
940 | if (kf_type == KINFO_FILE_TYPE_SOCKET) | |
941 | { | |
942 | switch (kf_sock_domain) | |
943 | { | |
944 | case FBSD_AF_UNIX: | |
945 | { | |
946 | switch (kf_sock_type) | |
947 | { | |
948 | case FBSD_SOCK_STREAM: | |
949 | printf_filtered ("unix stream:"); | |
950 | break; | |
951 | case FBSD_SOCK_DGRAM: | |
952 | printf_filtered ("unix dgram:"); | |
953 | break; | |
954 | case FBSD_SOCK_SEQPACKET: | |
955 | printf_filtered ("unix seqpacket:"); | |
956 | break; | |
957 | default: | |
958 | printf_filtered ("unix <%d>:", kf_sock_type); | |
959 | break; | |
960 | } | |
961 | ||
962 | /* For local sockets, print out the first non-nul path | |
963 | rather than both paths. */ | |
964 | const struct fbsd_sockaddr_un *sun | |
965 | = reinterpret_cast<const struct fbsd_sockaddr_un *> (kf_sa_local); | |
966 | if (sun->sun_path[0] == 0) | |
967 | sun = reinterpret_cast<const struct fbsd_sockaddr_un *> | |
968 | (kf_sa_peer); | |
969 | printf_filtered ("%s", sun->sun_path); | |
970 | break; | |
971 | } | |
972 | case FBSD_AF_INET: | |
973 | printf_filtered ("%s4 ", fbsd_ipproto (kf_sock_protocol)); | |
974 | fbsd_print_sockaddr_in (kf_sa_local); | |
975 | printf_filtered (" -> "); | |
976 | fbsd_print_sockaddr_in (kf_sa_peer); | |
977 | break; | |
978 | case FBSD_AF_INET6: | |
979 | printf_filtered ("%s6 ", fbsd_ipproto (kf_sock_protocol)); | |
980 | fbsd_print_sockaddr_in6 (kf_sa_local); | |
981 | printf_filtered (" -> "); | |
982 | fbsd_print_sockaddr_in6 (kf_sa_peer); | |
983 | break; | |
984 | } | |
985 | } | |
986 | else | |
987 | printf_filtered ("%s", reinterpret_cast<const char *> (kf_path)); | |
988 | printf_filtered ("\n"); | |
989 | } | |
990 | ||
991 | /* Implement "info proc files" for a corefile. */ | |
992 | ||
993 | static void | |
994 | fbsd_core_info_proc_files (struct gdbarch *gdbarch) | |
995 | { | |
996 | asection *section | |
997 | = bfd_get_section_by_name (core_bfd, ".note.freebsdcore.files"); | |
998 | if (section == NULL) | |
999 | { | |
1000 | warning (_("unable to find open files in core file")); | |
1001 | return; | |
1002 | } | |
1003 | ||
1004 | size_t note_size = bfd_get_section_size (section); | |
1005 | if (note_size < 4) | |
1006 | error (_("malformed core note - too short for header")); | |
1007 | ||
1008 | gdb::def_vector<unsigned char> contents (note_size); | |
1009 | if (!bfd_get_section_contents (core_bfd, section, contents.data (), | |
1010 | 0, note_size)) | |
1011 | error (_("could not get core note contents")); | |
1012 | ||
1013 | unsigned char *descdata = contents.data (); | |
1014 | unsigned char *descend = descdata + note_size; | |
1015 | ||
1016 | /* Skip over the structure size. */ | |
1017 | descdata += 4; | |
1018 | ||
1019 | fbsd_info_proc_files_header (); | |
1020 | ||
1021 | while (descdata + KF_PATH < descend) | |
1022 | { | |
1023 | ULONGEST structsize = bfd_get_32 (core_bfd, descdata + KF_STRUCTSIZE); | |
1024 | if (structsize < KF_PATH) | |
1025 | error (_("malformed core note - file structure too small")); | |
1026 | ||
1027 | LONGEST type = bfd_get_signed_32 (core_bfd, descdata + KF_TYPE); | |
1028 | LONGEST fd = bfd_get_signed_32 (core_bfd, descdata + KF_FD); | |
1029 | LONGEST flags = bfd_get_signed_32 (core_bfd, descdata + KF_FLAGS); | |
1030 | LONGEST offset = bfd_get_signed_64 (core_bfd, descdata + KF_OFFSET); | |
1031 | LONGEST vnode_type = bfd_get_signed_32 (core_bfd, | |
1032 | descdata + KF_VNODE_TYPE); | |
1033 | LONGEST sock_domain = bfd_get_signed_32 (core_bfd, | |
1034 | descdata + KF_SOCK_DOMAIN); | |
1035 | LONGEST sock_type = bfd_get_signed_32 (core_bfd, descdata + KF_SOCK_TYPE); | |
1036 | LONGEST sock_protocol = bfd_get_signed_32 (core_bfd, | |
1037 | descdata + KF_SOCK_PROTOCOL); | |
1038 | fbsd_info_proc_files_entry (type, fd, flags, offset, vnode_type, | |
1039 | sock_domain, sock_type, sock_protocol, | |
1040 | descdata + KF_SA_LOCAL, descdata + KF_SA_PEER, | |
1041 | descdata + KF_PATH); | |
1042 | ||
1043 | descdata += structsize; | |
1044 | } | |
1045 | } | |
1046 | ||
d2176225 JB |
1047 | /* Helper function to generate mappings flags for a single VM map |
1048 | entry in 'info proc mappings'. */ | |
1049 | ||
6f3b1098 | 1050 | static const char * |
d2176225 JB |
1051 | fbsd_vm_map_entry_flags (int kve_flags, int kve_protection) |
1052 | { | |
1053 | static char vm_flags[9]; | |
1054 | ||
1055 | vm_flags[0] = (kve_protection & KINFO_VME_PROT_READ) ? 'r' : '-'; | |
1056 | vm_flags[1] = (kve_protection & KINFO_VME_PROT_WRITE) ? 'w' : '-'; | |
1057 | vm_flags[2] = (kve_protection & KINFO_VME_PROT_EXEC) ? 'x' : '-'; | |
1058 | vm_flags[3] = ' '; | |
1059 | vm_flags[4] = (kve_flags & KINFO_VME_FLAG_COW) ? 'C' : '-'; | |
1060 | vm_flags[5] = (kve_flags & KINFO_VME_FLAG_NEEDS_COPY) ? 'N' : '-'; | |
1061 | vm_flags[6] = (kve_flags & KINFO_VME_FLAG_SUPER) ? 'S' : '-'; | |
1062 | vm_flags[7] = (kve_flags & KINFO_VME_FLAG_GROWS_UP) ? 'U' | |
1063 | : (kve_flags & KINFO_VME_FLAG_GROWS_DOWN) ? 'D' : '-'; | |
1064 | vm_flags[8] = '\0'; | |
1065 | ||
1066 | return vm_flags; | |
1067 | } | |
1068 | ||
6f3b1098 JB |
1069 | /* See fbsd-tdep.h. */ |
1070 | ||
1071 | void | |
1072 | fbsd_info_proc_mappings_header (int addr_bit) | |
1073 | { | |
1074 | printf_filtered (_("Mapped address spaces:\n\n")); | |
1075 | if (addr_bit == 64) | |
1076 | { | |
1077 | printf_filtered (" %18s %18s %10s %10s %9s %s\n", | |
1078 | "Start Addr", | |
1079 | " End Addr", | |
1080 | " Size", " Offset", "Flags ", "File"); | |
1081 | } | |
1082 | else | |
1083 | { | |
1084 | printf_filtered ("\t%10s %10s %10s %10s %9s %s\n", | |
1085 | "Start Addr", | |
1086 | " End Addr", | |
1087 | " Size", " Offset", "Flags ", "File"); | |
1088 | } | |
1089 | } | |
1090 | ||
1091 | /* See fbsd-tdep.h. */ | |
1092 | ||
1093 | void | |
1094 | fbsd_info_proc_mappings_entry (int addr_bit, ULONGEST kve_start, | |
1095 | ULONGEST kve_end, ULONGEST kve_offset, | |
1096 | int kve_flags, int kve_protection, | |
1097 | const void *kve_path) | |
1098 | { | |
1099 | if (addr_bit == 64) | |
1100 | { | |
1101 | printf_filtered (" %18s %18s %10s %10s %9s %s\n", | |
1102 | hex_string (kve_start), | |
1103 | hex_string (kve_end), | |
1104 | hex_string (kve_end - kve_start), | |
1105 | hex_string (kve_offset), | |
1106 | fbsd_vm_map_entry_flags (kve_flags, kve_protection), | |
1107 | reinterpret_cast<const char *> (kve_path)); | |
1108 | } | |
1109 | else | |
1110 | { | |
1111 | printf_filtered ("\t%10s %10s %10s %10s %9s %s\n", | |
1112 | hex_string (kve_start), | |
1113 | hex_string (kve_end), | |
1114 | hex_string (kve_end - kve_start), | |
1115 | hex_string (kve_offset), | |
1116 | fbsd_vm_map_entry_flags (kve_flags, kve_protection), | |
1117 | reinterpret_cast<const char *> (kve_path)); | |
1118 | } | |
1119 | } | |
1120 | ||
d2176225 JB |
1121 | /* Implement "info proc mappings" for a corefile. */ |
1122 | ||
1123 | static void | |
1124 | fbsd_core_info_proc_mappings (struct gdbarch *gdbarch) | |
1125 | { | |
1126 | asection *section; | |
1127 | unsigned char *descdata, *descend; | |
1128 | size_t note_size; | |
1129 | ||
1130 | section = bfd_get_section_by_name (core_bfd, ".note.freebsdcore.vmmap"); | |
1131 | if (section == NULL) | |
1132 | { | |
1133 | warning (_("unable to find mappings in core file")); | |
1134 | return; | |
1135 | } | |
1136 | ||
1137 | note_size = bfd_get_section_size (section); | |
1138 | if (note_size < 4) | |
1139 | error (_("malformed core note - too short for header")); | |
1140 | ||
1141 | gdb::def_vector<unsigned char> contents (note_size); | |
1142 | if (!bfd_get_section_contents (core_bfd, section, contents.data (), | |
1143 | 0, note_size)) | |
1144 | error (_("could not get core note contents")); | |
1145 | ||
1146 | descdata = contents.data (); | |
1147 | descend = descdata + note_size; | |
1148 | ||
1149 | /* Skip over the structure size. */ | |
1150 | descdata += 4; | |
1151 | ||
6f3b1098 | 1152 | fbsd_info_proc_mappings_header (gdbarch_addr_bit (gdbarch)); |
d2176225 JB |
1153 | while (descdata + KVE_PATH < descend) |
1154 | { | |
6f3b1098 | 1155 | ULONGEST structsize = bfd_get_32 (core_bfd, descdata + KVE_STRUCTSIZE); |
d2176225 JB |
1156 | if (structsize < KVE_PATH) |
1157 | error (_("malformed core note - vmmap entry too small")); | |
1158 | ||
6f3b1098 JB |
1159 | ULONGEST start = bfd_get_64 (core_bfd, descdata + KVE_START); |
1160 | ULONGEST end = bfd_get_64 (core_bfd, descdata + KVE_END); | |
1161 | ULONGEST offset = bfd_get_64 (core_bfd, descdata + KVE_OFFSET); | |
1162 | LONGEST flags = bfd_get_signed_32 (core_bfd, descdata + KVE_FLAGS); | |
1163 | LONGEST prot = bfd_get_signed_32 (core_bfd, descdata + KVE_PROTECTION); | |
1164 | fbsd_info_proc_mappings_entry (gdbarch_addr_bit (gdbarch), start, end, | |
1165 | offset, flags, prot, descdata + KVE_PATH); | |
d2176225 JB |
1166 | |
1167 | descdata += structsize; | |
1168 | } | |
1169 | } | |
1170 | ||
1171 | /* Fetch the pathname of a vnode for a single file descriptor from the | |
1172 | file table core note. */ | |
1173 | ||
1174 | static gdb::unique_xmalloc_ptr<char> | |
1175 | fbsd_core_vnode_path (struct gdbarch *gdbarch, int fd) | |
1176 | { | |
1177 | asection *section; | |
1178 | unsigned char *descdata, *descend; | |
1179 | size_t note_size; | |
1180 | ||
1181 | section = bfd_get_section_by_name (core_bfd, ".note.freebsdcore.files"); | |
1182 | if (section == NULL) | |
1183 | return nullptr; | |
1184 | ||
1185 | note_size = bfd_get_section_size (section); | |
1186 | if (note_size < 4) | |
1187 | error (_("malformed core note - too short for header")); | |
1188 | ||
1189 | gdb::def_vector<unsigned char> contents (note_size); | |
1190 | if (!bfd_get_section_contents (core_bfd, section, contents.data (), | |
1191 | 0, note_size)) | |
1192 | error (_("could not get core note contents")); | |
1193 | ||
1194 | descdata = contents.data (); | |
1195 | descend = descdata + note_size; | |
1196 | ||
1197 | /* Skip over the structure size. */ | |
1198 | descdata += 4; | |
1199 | ||
9f235e09 | 1200 | while (descdata + KF_PATH < descend) |
d2176225 JB |
1201 | { |
1202 | ULONGEST structsize; | |
1203 | ||
1204 | structsize = bfd_get_32 (core_bfd, descdata + KF_STRUCTSIZE); | |
9f235e09 JB |
1205 | if (structsize < KF_PATH) |
1206 | error (_("malformed core note - file structure too small")); | |
d2176225 JB |
1207 | |
1208 | if (bfd_get_32 (core_bfd, descdata + KF_TYPE) == KINFO_FILE_TYPE_VNODE | |
1209 | && bfd_get_signed_32 (core_bfd, descdata + KF_FD) == fd) | |
1210 | { | |
1211 | char *path = (char *) descdata + KF_PATH; | |
1212 | return gdb::unique_xmalloc_ptr<char> (xstrdup (path)); | |
1213 | } | |
1214 | ||
1215 | descdata += structsize; | |
1216 | } | |
1217 | return nullptr; | |
1218 | } | |
1219 | ||
1220 | /* Helper function to read a struct timeval. */ | |
1221 | ||
1222 | static void | |
1223 | fbsd_core_fetch_timeval (struct gdbarch *gdbarch, unsigned char *data, | |
1224 | LONGEST &sec, ULONGEST &usec) | |
1225 | { | |
1226 | if (gdbarch_addr_bit (gdbarch) == 64) | |
1227 | { | |
1228 | sec = bfd_get_signed_64 (core_bfd, data); | |
1229 | usec = bfd_get_64 (core_bfd, data + 8); | |
1230 | } | |
1231 | else if (bfd_get_arch (core_bfd) == bfd_arch_i386) | |
1232 | { | |
1233 | sec = bfd_get_signed_32 (core_bfd, data); | |
1234 | usec = bfd_get_32 (core_bfd, data + 4); | |
1235 | } | |
1236 | else | |
1237 | { | |
1238 | sec = bfd_get_signed_64 (core_bfd, data); | |
1239 | usec = bfd_get_32 (core_bfd, data + 8); | |
1240 | } | |
1241 | } | |
1242 | ||
1243 | /* Print out the contents of a signal set. */ | |
1244 | ||
1245 | static void | |
1246 | fbsd_print_sigset (const char *descr, unsigned char *sigset) | |
1247 | { | |
1248 | printf_filtered ("%s: ", descr); | |
1249 | for (int i = 0; i < SIG_WORDS; i++) | |
1250 | printf_filtered ("%08x ", | |
1251 | (unsigned int) bfd_get_32 (core_bfd, sigset + i * 4)); | |
1252 | printf_filtered ("\n"); | |
1253 | } | |
1254 | ||
1255 | /* Implement "info proc status" for a corefile. */ | |
1256 | ||
1257 | static void | |
1258 | fbsd_core_info_proc_status (struct gdbarch *gdbarch) | |
1259 | { | |
1260 | const struct kinfo_proc_layout *kp; | |
1261 | asection *section; | |
d2176225 JB |
1262 | unsigned char *descdata; |
1263 | int addr_bit, long_bit; | |
1264 | size_t note_size; | |
1265 | ULONGEST value; | |
1266 | LONGEST sec; | |
1267 | ||
1268 | section = bfd_get_section_by_name (core_bfd, ".note.freebsdcore.proc"); | |
1269 | if (section == NULL) | |
1270 | { | |
1271 | warning (_("unable to find process info in core file")); | |
1272 | return; | |
1273 | } | |
1274 | ||
1275 | addr_bit = gdbarch_addr_bit (gdbarch); | |
1276 | if (addr_bit == 64) | |
1277 | kp = &kinfo_proc_layout_64; | |
1278 | else if (bfd_get_arch (core_bfd) == bfd_arch_i386) | |
1279 | kp = &kinfo_proc_layout_i386; | |
1280 | else | |
1281 | kp = &kinfo_proc_layout_32; | |
1282 | long_bit = gdbarch_long_bit (gdbarch); | |
1283 | ||
1284 | /* | |
1285 | * Ensure that the note is large enough for all of the fields fetched | |
1286 | * by this function. In particular, the note must contain the 32-bit | |
1287 | * structure size, then it must be long enough to access the last | |
1288 | * field used (ki_rusage_ch.ru_majflt) which is the size of a long. | |
1289 | */ | |
1290 | note_size = bfd_get_section_size (section); | |
1291 | if (note_size < (4 + kp->ki_rusage_ch + kp->ru_majflt | |
1292 | + long_bit / TARGET_CHAR_BIT)) | |
1293 | error (_("malformed core note - too short")); | |
1294 | ||
1295 | gdb::def_vector<unsigned char> contents (note_size); | |
1296 | if (!bfd_get_section_contents (core_bfd, section, contents.data (), | |
1297 | 0, note_size)) | |
1298 | error (_("could not get core note contents")); | |
1299 | ||
1300 | descdata = contents.data (); | |
1301 | ||
1302 | /* Skip over the structure size. */ | |
1303 | descdata += 4; | |
1304 | ||
1305 | /* Verify 'ki_layout' is 0. */ | |
1306 | if (bfd_get_32 (core_bfd, descdata + kp->ki_layout) != 0) | |
1307 | { | |
1308 | warning (_("unsupported process information in core file")); | |
1309 | return; | |
1310 | } | |
1311 | ||
1312 | printf_filtered ("Name: %.19s\n", descdata + kp->ki_comm); | |
1313 | printf_filtered ("Process ID: %s\n", | |
1314 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_pid))); | |
1315 | printf_filtered ("Parent process: %s\n", | |
1316 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_ppid))); | |
1317 | printf_filtered ("Process group: %s\n", | |
1318 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_pgid))); | |
1319 | printf_filtered ("Session id: %s\n", | |
1320 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_sid))); | |
1321 | ||
1322 | /* FreeBSD 12.0 and later store a 64-bit dev_t at 'ki_tdev'. Older | |
1323 | kernels store a 32-bit dev_t at 'ki_tdev_freebsd11'. In older | |
1324 | kernels the 64-bit 'ki_tdev' field is in a reserved section of | |
1325 | the structure that is cleared to zero. Assume that a zero value | |
1326 | in ki_tdev indicates a core dump from an older kernel and use the | |
1327 | value in 'ki_tdev_freebsd11' instead. */ | |
1328 | value = bfd_get_64 (core_bfd, descdata + kp->ki_tdev); | |
1329 | if (value == 0) | |
1330 | value = bfd_get_32 (core_bfd, descdata + kp->ki_tdev_freebsd11); | |
1331 | printf_filtered ("TTY: %s\n", pulongest (value)); | |
1332 | printf_filtered ("TTY owner process group: %s\n", | |
1333 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_tpgid))); | |
1334 | printf_filtered ("User IDs (real, effective, saved): %s %s %s\n", | |
1335 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_ruid)), | |
1336 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_uid)), | |
1337 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_svuid))); | |
1338 | printf_filtered ("Group IDs (real, effective, saved): %s %s %s\n", | |
1339 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_rgid)), | |
1340 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_groups)), | |
1341 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_svgid))); | |
1342 | printf_filtered ("Groups: "); | |
1343 | uint16_t ngroups = bfd_get_16 (core_bfd, descdata + kp->ki_ngroups); | |
1344 | for (int i = 0; i < ngroups; i++) | |
1345 | printf_filtered ("%s ", | |
1346 | pulongest (bfd_get_32 (core_bfd, | |
1347 | descdata + kp->ki_groups + i * 4))); | |
1348 | printf_filtered ("\n"); | |
1349 | value = bfd_get (long_bit, core_bfd, | |
1350 | descdata + kp->ki_rusage + kp->ru_minflt); | |
1351 | printf_filtered ("Minor faults (no memory page): %s\n", pulongest (value)); | |
1352 | value = bfd_get (long_bit, core_bfd, | |
1353 | descdata + kp->ki_rusage_ch + kp->ru_minflt); | |
1354 | printf_filtered ("Minor faults, children: %s\n", pulongest (value)); | |
1355 | value = bfd_get (long_bit, core_bfd, | |
1356 | descdata + kp->ki_rusage + kp->ru_majflt); | |
1357 | printf_filtered ("Major faults (memory page faults): %s\n", | |
1358 | pulongest (value)); | |
1359 | value = bfd_get (long_bit, core_bfd, | |
1360 | descdata + kp->ki_rusage_ch + kp->ru_majflt); | |
1361 | printf_filtered ("Major faults, children: %s\n", pulongest (value)); | |
1362 | fbsd_core_fetch_timeval (gdbarch, | |
1363 | descdata + kp->ki_rusage + kp->ru_utime, | |
1364 | sec, value); | |
1365 | printf_filtered ("utime: %s.%06d\n", plongest (sec), (int) value); | |
1366 | fbsd_core_fetch_timeval (gdbarch, | |
1367 | descdata + kp->ki_rusage + kp->ru_stime, | |
1368 | sec, value); | |
1369 | printf_filtered ("stime: %s.%06d\n", plongest (sec), (int) value); | |
1370 | fbsd_core_fetch_timeval (gdbarch, | |
1371 | descdata + kp->ki_rusage_ch + kp->ru_utime, | |
1372 | sec, value); | |
1373 | printf_filtered ("utime, children: %s.%06d\n", plongest (sec), (int) value); | |
1374 | fbsd_core_fetch_timeval (gdbarch, | |
1375 | descdata + kp->ki_rusage_ch + kp->ru_stime, | |
1376 | sec, value); | |
1377 | printf_filtered ("stime, children: %s.%06d\n", plongest (sec), (int) value); | |
1378 | printf_filtered ("'nice' value: %d\n", | |
1379 | bfd_get_signed_8 (core_bfd, descdata + kp->ki_nice)); | |
1380 | fbsd_core_fetch_timeval (gdbarch, descdata + kp->ki_start, sec, value); | |
1381 | printf_filtered ("Start time: %s.%06d\n", plongest (sec), (int) value); | |
1382 | printf_filtered ("Virtual memory size: %s kB\n", | |
1383 | pulongest (bfd_get (addr_bit, core_bfd, | |
1384 | descdata + kp->ki_size) / 1024)); | |
1385 | printf_filtered ("Data size: %s pages\n", | |
1386 | pulongest (bfd_get (addr_bit, core_bfd, | |
1387 | descdata + kp->ki_dsize))); | |
1388 | printf_filtered ("Stack size: %s pages\n", | |
1389 | pulongest (bfd_get (addr_bit, core_bfd, | |
1390 | descdata + kp->ki_ssize))); | |
1391 | printf_filtered ("Text size: %s pages\n", | |
1392 | pulongest (bfd_get (addr_bit, core_bfd, | |
1393 | descdata + kp->ki_tsize))); | |
1394 | printf_filtered ("Resident set size: %s pages\n", | |
1395 | pulongest (bfd_get (addr_bit, core_bfd, | |
1396 | descdata + kp->ki_rssize))); | |
1397 | printf_filtered ("Maximum RSS: %s pages\n", | |
1398 | pulongest (bfd_get (long_bit, core_bfd, | |
1399 | descdata + kp->ki_rusage | |
1400 | + kp->ru_maxrss))); | |
1401 | fbsd_print_sigset ("Ignored Signals", descdata + kp->ki_sigignore); | |
1402 | fbsd_print_sigset ("Caught Signals", descdata + kp->ki_sigcatch); | |
1403 | } | |
1404 | ||
1405 | /* Implement the "core_info_proc" gdbarch method. */ | |
1406 | ||
1407 | static void | |
1408 | fbsd_core_info_proc (struct gdbarch *gdbarch, const char *args, | |
1409 | enum info_proc_what what) | |
1410 | { | |
1411 | bool do_cmdline = false; | |
1412 | bool do_cwd = false; | |
1413 | bool do_exe = false; | |
57c2a98a | 1414 | bool do_files = false; |
d2176225 JB |
1415 | bool do_mappings = false; |
1416 | bool do_status = false; | |
1417 | int pid; | |
1418 | ||
1419 | switch (what) | |
1420 | { | |
1421 | case IP_MINIMAL: | |
1422 | do_cmdline = true; | |
1423 | do_cwd = true; | |
1424 | do_exe = true; | |
1425 | break; | |
1426 | case IP_MAPPINGS: | |
1427 | do_mappings = true; | |
1428 | break; | |
1429 | case IP_STATUS: | |
1430 | case IP_STAT: | |
1431 | do_status = true; | |
1432 | break; | |
1433 | case IP_CMDLINE: | |
1434 | do_cmdline = true; | |
1435 | break; | |
1436 | case IP_EXE: | |
1437 | do_exe = true; | |
1438 | break; | |
1439 | case IP_CWD: | |
1440 | do_cwd = true; | |
1441 | break; | |
57c2a98a JB |
1442 | case IP_FILES: |
1443 | do_files = true; | |
1444 | break; | |
d2176225 JB |
1445 | case IP_ALL: |
1446 | do_cmdline = true; | |
1447 | do_cwd = true; | |
1448 | do_exe = true; | |
57c2a98a | 1449 | do_files = true; |
d2176225 JB |
1450 | do_mappings = true; |
1451 | do_status = true; | |
1452 | break; | |
1453 | default: | |
1454 | return; | |
1455 | } | |
1456 | ||
1457 | pid = bfd_core_file_pid (core_bfd); | |
1458 | if (pid != 0) | |
1459 | printf_filtered (_("process %d\n"), pid); | |
1460 | ||
1461 | if (do_cmdline) | |
1462 | { | |
1463 | const char *cmdline; | |
1464 | ||
1465 | cmdline = bfd_core_file_failing_command (core_bfd); | |
1466 | if (cmdline) | |
1467 | printf_filtered ("cmdline = '%s'\n", cmdline); | |
1468 | else | |
1469 | warning (_("Command line unavailable")); | |
1470 | } | |
1471 | if (do_cwd) | |
1472 | { | |
1473 | gdb::unique_xmalloc_ptr<char> cwd = | |
1474 | fbsd_core_vnode_path (gdbarch, KINFO_FILE_FD_TYPE_CWD); | |
1475 | if (cwd) | |
1476 | printf_filtered ("cwd = '%s'\n", cwd.get ()); | |
1477 | else | |
1478 | warning (_("unable to read current working directory")); | |
1479 | } | |
1480 | if (do_exe) | |
1481 | { | |
1482 | gdb::unique_xmalloc_ptr<char> exe = | |
1483 | fbsd_core_vnode_path (gdbarch, KINFO_FILE_FD_TYPE_TEXT); | |
1484 | if (exe) | |
1485 | printf_filtered ("exe = '%s'\n", exe.get ()); | |
1486 | else | |
1487 | warning (_("unable to read executable path name")); | |
1488 | } | |
57c2a98a JB |
1489 | if (do_files) |
1490 | fbsd_core_info_proc_files (gdbarch); | |
d2176225 JB |
1491 | if (do_mappings) |
1492 | fbsd_core_info_proc_mappings (gdbarch); | |
1493 | if (do_status) | |
1494 | fbsd_core_info_proc_status (gdbarch); | |
1495 | } | |
1496 | ||
82372b2f JB |
1497 | /* Print descriptions of FreeBSD-specific AUXV entries to FILE. */ |
1498 | ||
1499 | static void | |
1500 | fbsd_print_auxv_entry (struct gdbarch *gdbarch, struct ui_file *file, | |
1501 | CORE_ADDR type, CORE_ADDR val) | |
1502 | { | |
1503 | const char *name; | |
1504 | const char *description; | |
1505 | enum auxv_format format; | |
1506 | ||
1507 | switch (type) | |
1508 | { | |
1509 | #define _TAGNAME(tag) #tag | |
1510 | #define TAGNAME(tag) _TAGNAME(AT_##tag) | |
1511 | #define TAG(tag, text, kind) \ | |
1512 | case AT_FREEBSD_##tag: name = TAGNAME(tag); description = text; format = kind; break | |
1513 | TAG (EXECPATH, _("Executable path"), AUXV_FORMAT_STR); | |
1514 | TAG (CANARY, _("Canary for SSP"), AUXV_FORMAT_HEX); | |
1515 | TAG (CANARYLEN, ("Length of the SSP canary"), AUXV_FORMAT_DEC); | |
1516 | TAG (OSRELDATE, _("OSRELDATE"), AUXV_FORMAT_DEC); | |
1517 | TAG (NCPUS, _("Number of CPUs"), AUXV_FORMAT_DEC); | |
1518 | TAG (PAGESIZES, _("Pagesizes"), AUXV_FORMAT_HEX); | |
1519 | TAG (PAGESIZESLEN, _("Number of pagesizes"), AUXV_FORMAT_DEC); | |
1520 | TAG (TIMEKEEP, _("Pointer to timehands"), AUXV_FORMAT_HEX); | |
1521 | TAG (STACKPROT, _("Initial stack protection"), AUXV_FORMAT_HEX); | |
12c4bd7f JB |
1522 | TAG (EHDRFLAGS, _("ELF header e_flags"), AUXV_FORMAT_HEX); |
1523 | TAG (HWCAP, _("Machine-dependent CPU capability hints"), AUXV_FORMAT_HEX); | |
82372b2f JB |
1524 | default: |
1525 | default_print_auxv_entry (gdbarch, file, type, val); | |
1526 | return; | |
1527 | } | |
1528 | ||
1529 | fprint_auxv_entry (file, name, description, format, type, val); | |
1530 | } | |
1531 | ||
762c974a JB |
1532 | /* Implement the "get_siginfo_type" gdbarch method. */ |
1533 | ||
1534 | static struct type * | |
1535 | fbsd_get_siginfo_type (struct gdbarch *gdbarch) | |
1536 | { | |
1537 | struct fbsd_gdbarch_data *fbsd_gdbarch_data; | |
1538 | struct type *int_type, *int32_type, *uint32_type, *long_type, *void_ptr_type; | |
1539 | struct type *uid_type, *pid_type; | |
1540 | struct type *sigval_type, *reason_type; | |
1541 | struct type *siginfo_type; | |
1542 | struct type *type; | |
1543 | ||
1544 | fbsd_gdbarch_data = get_fbsd_gdbarch_data (gdbarch); | |
1545 | if (fbsd_gdbarch_data->siginfo_type != NULL) | |
1546 | return fbsd_gdbarch_data->siginfo_type; | |
1547 | ||
1548 | int_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
1549 | 0, "int"); | |
1550 | int32_type = arch_integer_type (gdbarch, 32, 0, "int32_t"); | |
1551 | uint32_type = arch_integer_type (gdbarch, 32, 1, "uint32_t"); | |
1552 | long_type = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
1553 | 0, "long"); | |
1554 | void_ptr_type = lookup_pointer_type (builtin_type (gdbarch)->builtin_void); | |
1555 | ||
1556 | /* union sigval */ | |
1557 | sigval_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION); | |
1558 | TYPE_NAME (sigval_type) = xstrdup ("sigval"); | |
1559 | append_composite_type_field (sigval_type, "sival_int", int_type); | |
1560 | append_composite_type_field (sigval_type, "sival_ptr", void_ptr_type); | |
1561 | ||
1562 | /* __pid_t */ | |
1563 | pid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, | |
77b7c781 | 1564 | TYPE_LENGTH (int32_type) * TARGET_CHAR_BIT, "__pid_t"); |
762c974a JB |
1565 | TYPE_TARGET_TYPE (pid_type) = int32_type; |
1566 | TYPE_TARGET_STUB (pid_type) = 1; | |
1567 | ||
1568 | /* __uid_t */ | |
1569 | uid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, | |
77b7c781 UW |
1570 | TYPE_LENGTH (uint32_type) * TARGET_CHAR_BIT, |
1571 | "__uid_t"); | |
762c974a JB |
1572 | TYPE_TARGET_TYPE (uid_type) = uint32_type; |
1573 | TYPE_TARGET_STUB (uid_type) = 1; | |
1574 | ||
1575 | /* _reason */ | |
1576 | reason_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION); | |
1577 | ||
1578 | /* _fault */ | |
1579 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
1580 | append_composite_type_field (type, "si_trapno", int_type); | |
1581 | append_composite_type_field (reason_type, "_fault", type); | |
1582 | ||
1583 | /* _timer */ | |
1584 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
1585 | append_composite_type_field (type, "si_timerid", int_type); | |
1586 | append_composite_type_field (type, "si_overrun", int_type); | |
1587 | append_composite_type_field (reason_type, "_timer", type); | |
1588 | ||
1589 | /* _mesgq */ | |
1590 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
1591 | append_composite_type_field (type, "si_mqd", int_type); | |
1592 | append_composite_type_field (reason_type, "_mesgq", type); | |
1593 | ||
1594 | /* _poll */ | |
1595 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
1596 | append_composite_type_field (type, "si_band", long_type); | |
1597 | append_composite_type_field (reason_type, "_poll", type); | |
1598 | ||
1599 | /* __spare__ */ | |
1600 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
1601 | append_composite_type_field (type, "__spare1__", long_type); | |
1602 | append_composite_type_field (type, "__spare2__", | |
1603 | init_vector_type (int_type, 7)); | |
1604 | append_composite_type_field (reason_type, "__spare__", type); | |
1605 | ||
1606 | /* struct siginfo */ | |
1607 | siginfo_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
1608 | TYPE_NAME (siginfo_type) = xstrdup ("siginfo"); | |
1609 | append_composite_type_field (siginfo_type, "si_signo", int_type); | |
1610 | append_composite_type_field (siginfo_type, "si_errno", int_type); | |
1611 | append_composite_type_field (siginfo_type, "si_code", int_type); | |
1612 | append_composite_type_field (siginfo_type, "si_pid", pid_type); | |
1613 | append_composite_type_field (siginfo_type, "si_uid", uid_type); | |
1614 | append_composite_type_field (siginfo_type, "si_status", int_type); | |
1615 | append_composite_type_field (siginfo_type, "si_addr", void_ptr_type); | |
1616 | append_composite_type_field (siginfo_type, "si_value", sigval_type); | |
1617 | append_composite_type_field (siginfo_type, "_reason", reason_type); | |
1618 | ||
1619 | fbsd_gdbarch_data->siginfo_type = siginfo_type; | |
1620 | ||
1621 | return siginfo_type; | |
1622 | } | |
1623 | ||
e6cdd38e JB |
1624 | /* Implement the "get_syscall_number" gdbarch method. */ |
1625 | ||
1626 | static LONGEST | |
00431a78 | 1627 | fbsd_get_syscall_number (struct gdbarch *gdbarch, thread_info *thread) |
e6cdd38e JB |
1628 | { |
1629 | ||
1630 | /* FreeBSD doesn't use gdbarch_get_syscall_number since FreeBSD | |
1631 | native targets fetch the system call number from the | |
1632 | 'pl_syscall_code' member of struct ptrace_lwpinfo in fbsd_wait. | |
1633 | However, system call catching requires this function to be | |
1634 | set. */ | |
1635 | ||
1636 | internal_error (__FILE__, __LINE__, _("fbsd_get_sycall_number called")); | |
1637 | } | |
1638 | ||
1736a7bd | 1639 | /* To be called from GDB_OSABI_FREEBSD handlers. */ |
a904c024 AA |
1640 | |
1641 | void | |
1642 | fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) | |
1643 | { | |
79117428 JB |
1644 | set_gdbarch_core_pid_to_str (gdbarch, fbsd_core_pid_to_str); |
1645 | set_gdbarch_core_thread_name (gdbarch, fbsd_core_thread_name); | |
4b654465 | 1646 | set_gdbarch_core_xfer_siginfo (gdbarch, fbsd_core_xfer_siginfo); |
a904c024 | 1647 | set_gdbarch_make_corefile_notes (gdbarch, fbsd_make_corefile_notes); |
d2176225 | 1648 | set_gdbarch_core_info_proc (gdbarch, fbsd_core_info_proc); |
82372b2f | 1649 | set_gdbarch_print_auxv_entry (gdbarch, fbsd_print_auxv_entry); |
762c974a | 1650 | set_gdbarch_get_siginfo_type (gdbarch, fbsd_get_siginfo_type); |
e6cdd38e JB |
1651 | |
1652 | /* `catch syscall' */ | |
1653 | set_xml_syscall_file_name (gdbarch, "syscalls/freebsd.xml"); | |
1654 | set_gdbarch_get_syscall_number (gdbarch, fbsd_get_syscall_number); | |
a904c024 | 1655 | } |
762c974a | 1656 | |
762c974a JB |
1657 | void |
1658 | _initialize_fbsd_tdep (void) | |
1659 | { | |
1660 | fbsd_gdbarch_data_handle = | |
1661 | gdbarch_data_register_post_init (init_fbsd_gdbarch_data); | |
1662 | } |