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a904c024 AA |
1 | /* Target-dependent code for FreeBSD, architecture-independent. |
2 | ||
4a94e368 | 3 | Copyright (C) 2002-2022 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" | |
ed810cc7 | 24 | #include "objfiles.h" |
a904c024 AA |
25 | #include "regcache.h" |
26 | #include "regset.h" | |
4de283e4 TT |
27 | #include "gdbthread.h" |
28 | #include "objfiles.h" | |
e6cdd38e | 29 | #include "xml-syscall.h" |
4de283e4 TT |
30 | #include <sys/socket.h> |
31 | #include <arpa/inet.h> | |
32 | ||
33 | #include "elf-bfd.h" | |
34 | #include "fbsd-tdep.h" | |
f3a5df7b | 35 | #include "gcore-elf.h" |
a904c024 | 36 | |
e61667ef RS |
37 | /* This enum is derived from FreeBSD's <sys/signal.h>. */ |
38 | ||
39 | enum | |
40 | { | |
41 | FREEBSD_SIGHUP = 1, | |
42 | FREEBSD_SIGINT = 2, | |
43 | FREEBSD_SIGQUIT = 3, | |
44 | FREEBSD_SIGILL = 4, | |
45 | FREEBSD_SIGTRAP = 5, | |
46 | FREEBSD_SIGABRT = 6, | |
47 | FREEBSD_SIGEMT = 7, | |
48 | FREEBSD_SIGFPE = 8, | |
49 | FREEBSD_SIGKILL = 9, | |
50 | FREEBSD_SIGBUS = 10, | |
51 | FREEBSD_SIGSEGV = 11, | |
52 | FREEBSD_SIGSYS = 12, | |
53 | FREEBSD_SIGPIPE = 13, | |
54 | FREEBSD_SIGALRM = 14, | |
55 | FREEBSD_SIGTERM = 15, | |
56 | FREEBSD_SIGURG = 16, | |
57 | FREEBSD_SIGSTOP = 17, | |
58 | FREEBSD_SIGTSTP = 18, | |
59 | FREEBSD_SIGCONT = 19, | |
60 | FREEBSD_SIGCHLD = 20, | |
61 | FREEBSD_SIGTTIN = 21, | |
62 | FREEBSD_SIGTTOU = 22, | |
63 | FREEBSD_SIGIO = 23, | |
64 | FREEBSD_SIGXCPU = 24, | |
65 | FREEBSD_SIGXFSZ = 25, | |
66 | FREEBSD_SIGVTALRM = 26, | |
67 | FREEBSD_SIGPROF = 27, | |
68 | FREEBSD_SIGWINCH = 28, | |
69 | FREEBSD_SIGINFO = 29, | |
70 | FREEBSD_SIGUSR1 = 30, | |
71 | FREEBSD_SIGUSR2 = 31, | |
72 | FREEBSD_SIGTHR = 32, | |
73 | FREEBSD_SIGLIBRT = 33, | |
74 | FREEBSD_SIGRTMIN = 65, | |
75 | FREEBSD_SIGRTMAX = 126, | |
76 | }; | |
a904c024 | 77 | |
83810881 JB |
78 | /* Constants for values of si_code as defined in FreeBSD's |
79 | <sys/signal.h>. */ | |
80 | ||
81 | #define FBSD_SI_USER 0x10001 | |
82 | #define FBSD_SI_QUEUE 0x10002 | |
83 | #define FBSD_SI_TIMER 0x10003 | |
84 | #define FBSD_SI_ASYNCIO 0x10004 | |
85 | #define FBSD_SI_MESGQ 0x10005 | |
86 | #define FBSD_SI_KERNEL 0x10006 | |
87 | #define FBSD_SI_LWP 0x10007 | |
88 | ||
89 | #define FBSD_ILL_ILLOPC 1 | |
90 | #define FBSD_ILL_ILLOPN 2 | |
91 | #define FBSD_ILL_ILLADR 3 | |
92 | #define FBSD_ILL_ILLTRP 4 | |
93 | #define FBSD_ILL_PRVOPC 5 | |
94 | #define FBSD_ILL_PRVREG 6 | |
95 | #define FBSD_ILL_COPROC 7 | |
96 | #define FBSD_ILL_BADSTK 8 | |
97 | ||
98 | #define FBSD_BUS_ADRALN 1 | |
99 | #define FBSD_BUS_ADRERR 2 | |
100 | #define FBSD_BUS_OBJERR 3 | |
101 | #define FBSD_BUS_OOMERR 100 | |
102 | ||
103 | #define FBSD_SEGV_MAPERR 1 | |
104 | #define FBSD_SEGV_ACCERR 2 | |
105 | #define FBSD_SEGV_PKUERR 100 | |
106 | ||
107 | #define FBSD_FPE_INTOVF 1 | |
108 | #define FBSD_FPE_INTDIV 2 | |
109 | #define FBSD_FPE_FLTDIV 3 | |
110 | #define FBSD_FPE_FLTOVF 4 | |
111 | #define FBSD_FPE_FLTUND 5 | |
112 | #define FBSD_FPE_FLTRES 6 | |
113 | #define FBSD_FPE_FLTINV 7 | |
114 | #define FBSD_FPE_FLTSUB 8 | |
115 | ||
116 | #define FBSD_TRAP_BRKPT 1 | |
117 | #define FBSD_TRAP_TRACE 2 | |
118 | #define FBSD_TRAP_DTRACE 3 | |
119 | #define FBSD_TRAP_CAP 4 | |
120 | ||
121 | #define FBSD_CLD_EXITED 1 | |
122 | #define FBSD_CLD_KILLED 2 | |
123 | #define FBSD_CLD_DUMPED 3 | |
124 | #define FBSD_CLD_TRAPPED 4 | |
125 | #define FBSD_CLD_STOPPED 5 | |
126 | #define FBSD_CLD_CONTINUED 6 | |
127 | ||
128 | #define FBSD_POLL_IN 1 | |
129 | #define FBSD_POLL_OUT 2 | |
130 | #define FBSD_POLL_MSG 3 | |
131 | #define FBSD_POLL_ERR 4 | |
132 | #define FBSD_POLL_PRI 5 | |
133 | #define FBSD_POLL_HUP 6 | |
134 | ||
4b654465 JB |
135 | /* FreeBSD kernels 12.0 and later include a copy of the |
136 | 'ptrace_lwpinfo' structure returned by the PT_LWPINFO ptrace | |
137 | operation in an ELF core note (NT_FREEBSD_PTLWPINFO) for each LWP. | |
138 | The constants below define the offset of field members and flags in | |
139 | this structure used by methods in this file. Note that the | |
140 | 'ptrace_lwpinfo' struct in the note is preceded by a 4 byte integer | |
141 | containing the size of the structure. */ | |
142 | ||
143 | #define LWPINFO_OFFSET 0x4 | |
144 | ||
145 | /* Offsets in ptrace_lwpinfo. */ | |
146 | #define LWPINFO_PL_FLAGS 0x8 | |
147 | #define LWPINFO64_PL_SIGINFO 0x30 | |
148 | #define LWPINFO32_PL_SIGINFO 0x2c | |
149 | ||
150 | /* Flags in pl_flags. */ | |
151 | #define PL_FLAG_SI 0x20 /* siginfo is valid */ | |
152 | ||
153 | /* Sizes of siginfo_t. */ | |
154 | #define SIZE64_SIGINFO_T 80 | |
155 | #define SIZE32_SIGINFO_T 64 | |
156 | ||
d2176225 JB |
157 | /* Offsets in data structure used in NT_FREEBSD_PROCSTAT_VMMAP core |
158 | dump notes. See <sys/user.h> for the definition of struct | |
159 | kinfo_vmentry. This data structure should have the same layout on | |
57c2a98a JB |
160 | all architectures. |
161 | ||
162 | Note that FreeBSD 7.0 used an older version of this structure | |
85102364 | 163 | (struct kinfo_vmentry), but the NT_FREEBSD_PROCSTAT_VMMAP core |
57c2a98a JB |
164 | dump note wasn't introduced until FreeBSD 9.2. As a result, the |
165 | core dump note has always used the 7.1 and later structure | |
166 | format. */ | |
d2176225 JB |
167 | |
168 | #define KVE_STRUCTSIZE 0x0 | |
169 | #define KVE_START 0x8 | |
170 | #define KVE_END 0x10 | |
171 | #define KVE_OFFSET 0x18 | |
172 | #define KVE_FLAGS 0x2c | |
906b4aac | 173 | #define KVE_PROTECTION 0x38 |
d2176225 JB |
174 | #define KVE_PATH 0x88 |
175 | ||
176 | /* Flags in the 'kve_protection' field in struct kinfo_vmentry. These | |
177 | match the KVME_PROT_* constants in <sys/user.h>. */ | |
178 | ||
179 | #define KINFO_VME_PROT_READ 0x00000001 | |
180 | #define KINFO_VME_PROT_WRITE 0x00000002 | |
181 | #define KINFO_VME_PROT_EXEC 0x00000004 | |
182 | ||
183 | /* Flags in the 'kve_flags' field in struct kinfo_vmentry. These | |
184 | match the KVME_FLAG_* constants in <sys/user.h>. */ | |
185 | ||
186 | #define KINFO_VME_FLAG_COW 0x00000001 | |
187 | #define KINFO_VME_FLAG_NEEDS_COPY 0x00000002 | |
188 | #define KINFO_VME_FLAG_NOCOREDUMP 0x00000004 | |
189 | #define KINFO_VME_FLAG_SUPER 0x00000008 | |
190 | #define KINFO_VME_FLAG_GROWS_UP 0x00000010 | |
191 | #define KINFO_VME_FLAG_GROWS_DOWN 0x00000020 | |
192 | ||
193 | /* Offsets in data structure used in NT_FREEBSD_PROCSTAT_FILES core | |
194 | dump notes. See <sys/user.h> for the definition of struct | |
195 | kinfo_file. This data structure should have the same layout on all | |
57c2a98a JB |
196 | architectures. |
197 | ||
198 | Note that FreeBSD 7.0 used an older version of this structure | |
199 | (struct kinfo_ofile), but the NT_FREEBSD_PROCSTAT_FILES core dump | |
200 | note wasn't introduced until FreeBSD 9.2. As a result, the core | |
201 | dump note has always used the 7.1 and later structure format. */ | |
d2176225 JB |
202 | |
203 | #define KF_STRUCTSIZE 0x0 | |
204 | #define KF_TYPE 0x4 | |
205 | #define KF_FD 0x8 | |
57c2a98a JB |
206 | #define KF_FLAGS 0x10 |
207 | #define KF_OFFSET 0x18 | |
208 | #define KF_VNODE_TYPE 0x20 | |
209 | #define KF_SOCK_DOMAIN 0x24 | |
210 | #define KF_SOCK_TYPE 0x28 | |
211 | #define KF_SOCK_PROTOCOL 0x2c | |
212 | #define KF_SA_LOCAL 0x30 | |
213 | #define KF_SA_PEER 0xb0 | |
d2176225 JB |
214 | #define KF_PATH 0x170 |
215 | ||
216 | /* Constants for the 'kf_type' field in struct kinfo_file. These | |
217 | match the KF_TYPE_* constants in <sys/user.h>. */ | |
218 | ||
219 | #define KINFO_FILE_TYPE_VNODE 1 | |
57c2a98a JB |
220 | #define KINFO_FILE_TYPE_SOCKET 2 |
221 | #define KINFO_FILE_TYPE_PIPE 3 | |
222 | #define KINFO_FILE_TYPE_FIFO 4 | |
223 | #define KINFO_FILE_TYPE_KQUEUE 5 | |
224 | #define KINFO_FILE_TYPE_CRYPTO 6 | |
225 | #define KINFO_FILE_TYPE_MQUEUE 7 | |
226 | #define KINFO_FILE_TYPE_SHM 8 | |
227 | #define KINFO_FILE_TYPE_SEM 9 | |
228 | #define KINFO_FILE_TYPE_PTS 10 | |
229 | #define KINFO_FILE_TYPE_PROCDESC 11 | |
d2176225 JB |
230 | |
231 | /* Special values for the 'kf_fd' field in struct kinfo_file. These | |
232 | match the KF_FD_TYPE_* constants in <sys/user.h>. */ | |
233 | ||
234 | #define KINFO_FILE_FD_TYPE_CWD -1 | |
57c2a98a JB |
235 | #define KINFO_FILE_FD_TYPE_ROOT -2 |
236 | #define KINFO_FILE_FD_TYPE_JAIL -3 | |
237 | #define KINFO_FILE_FD_TYPE_TRACE -4 | |
d2176225 | 238 | #define KINFO_FILE_FD_TYPE_TEXT -5 |
57c2a98a JB |
239 | #define KINFO_FILE_FD_TYPE_CTTY -6 |
240 | ||
241 | /* Flags in the 'kf_flags' field in struct kinfo_file. These match | |
242 | the KF_FLAG_* constants in <sys/user.h>. */ | |
243 | ||
244 | #define KINFO_FILE_FLAG_READ 0x00000001 | |
245 | #define KINFO_FILE_FLAG_WRITE 0x00000002 | |
246 | #define KINFO_FILE_FLAG_APPEND 0x00000004 | |
247 | #define KINFO_FILE_FLAG_ASYNC 0x00000008 | |
248 | #define KINFO_FILE_FLAG_FSYNC 0x00000010 | |
249 | #define KINFO_FILE_FLAG_NONBLOCK 0x00000020 | |
250 | #define KINFO_FILE_FLAG_DIRECT 0x00000040 | |
251 | #define KINFO_FILE_FLAG_HASLOCK 0x00000080 | |
252 | #define KINFO_FILE_FLAG_EXEC 0x00004000 | |
253 | ||
254 | /* Constants for the 'kf_vnode_type' field in struct kinfo_file. | |
255 | These match the KF_VTYPE_* constants in <sys/user.h>. */ | |
256 | ||
257 | #define KINFO_FILE_VTYPE_VREG 1 | |
258 | #define KINFO_FILE_VTYPE_VDIR 2 | |
259 | #define KINFO_FILE_VTYPE_VCHR 4 | |
260 | #define KINFO_FILE_VTYPE_VLNK 5 | |
261 | #define KINFO_FILE_VTYPE_VSOCK 6 | |
262 | #define KINFO_FILE_VTYPE_VFIFO 7 | |
263 | ||
264 | /* Constants for socket address families. These match AF_* constants | |
265 | in <sys/socket.h>. */ | |
266 | ||
267 | #define FBSD_AF_UNIX 1 | |
268 | #define FBSD_AF_INET 2 | |
269 | #define FBSD_AF_INET6 28 | |
270 | ||
271 | /* Constants for socket types. These match SOCK_* constants in | |
272 | <sys/socket.h>. */ | |
273 | ||
274 | #define FBSD_SOCK_STREAM 1 | |
275 | #define FBSD_SOCK_DGRAM 2 | |
276 | #define FBSD_SOCK_SEQPACKET 5 | |
277 | ||
278 | /* Constants for IP protocols. These match IPPROTO_* constants in | |
279 | <netinet/in.h>. */ | |
280 | ||
281 | #define FBSD_IPPROTO_ICMP 1 | |
282 | #define FBSD_IPPROTO_TCP 6 | |
283 | #define FBSD_IPPROTO_UDP 17 | |
284 | #define FBSD_IPPROTO_SCTP 132 | |
285 | ||
286 | /* Socket address structures. These have the same layout on all | |
287 | FreeBSD architectures. In addition, multibyte fields such as IP | |
288 | addresses are always stored in network byte order. */ | |
289 | ||
290 | struct fbsd_sockaddr_in | |
291 | { | |
292 | uint8_t sin_len; | |
293 | uint8_t sin_family; | |
294 | uint8_t sin_port[2]; | |
295 | uint8_t sin_addr[4]; | |
296 | char sin_zero[8]; | |
297 | }; | |
298 | ||
299 | struct fbsd_sockaddr_in6 | |
300 | { | |
301 | uint8_t sin6_len; | |
302 | uint8_t sin6_family; | |
303 | uint8_t sin6_port[2]; | |
304 | uint32_t sin6_flowinfo; | |
305 | uint8_t sin6_addr[16]; | |
306 | uint32_t sin6_scope_id; | |
307 | }; | |
308 | ||
309 | struct fbsd_sockaddr_un | |
310 | { | |
311 | uint8_t sun_len; | |
312 | uint8_t sun_family; | |
313 | char sun_path[104]; | |
314 | }; | |
d2176225 JB |
315 | |
316 | /* Number of 32-bit words in a signal set. This matches _SIG_WORDS in | |
317 | <sys/_sigset.h> and is the same value on all architectures. */ | |
318 | ||
319 | #define SIG_WORDS 4 | |
320 | ||
321 | /* Offsets in data structure used in NT_FREEBSD_PROCSTAT_PROC core | |
322 | dump notes. See <sys/user.h> for the definition of struct | |
323 | kinfo_proc. This data structure has different layouts on different | |
324 | architectures mostly due to ILP32 vs LP64. However, FreeBSD/i386 | |
325 | uses a 32-bit time_t while all other architectures use a 64-bit | |
326 | time_t. | |
327 | ||
328 | The core dump note actually contains one kinfo_proc structure for | |
329 | each thread, but all of the process-wide data can be obtained from | |
330 | the first structure. One result of this note's format is that some | |
331 | of the process-wide status available in the native target method | |
332 | from the kern.proc.pid.<pid> sysctl such as ki_stat and ki_siglist | |
333 | is not available from a core dump. Instead, the per-thread data | |
334 | structures contain the value of these fields for individual | |
335 | threads. */ | |
336 | ||
337 | struct kinfo_proc_layout | |
338 | { | |
339 | /* Offsets of struct kinfo_proc members. */ | |
340 | int ki_layout; | |
341 | int ki_pid; | |
342 | int ki_ppid; | |
343 | int ki_pgid; | |
344 | int ki_tpgid; | |
345 | int ki_sid; | |
346 | int ki_tdev_freebsd11; | |
347 | int ki_sigignore; | |
348 | int ki_sigcatch; | |
349 | int ki_uid; | |
350 | int ki_ruid; | |
351 | int ki_svuid; | |
352 | int ki_rgid; | |
353 | int ki_svgid; | |
354 | int ki_ngroups; | |
355 | int ki_groups; | |
356 | int ki_size; | |
357 | int ki_rssize; | |
358 | int ki_tsize; | |
359 | int ki_dsize; | |
360 | int ki_ssize; | |
361 | int ki_start; | |
362 | int ki_nice; | |
363 | int ki_comm; | |
364 | int ki_tdev; | |
365 | int ki_rusage; | |
366 | int ki_rusage_ch; | |
367 | ||
368 | /* Offsets of struct rusage members. */ | |
369 | int ru_utime; | |
370 | int ru_stime; | |
371 | int ru_maxrss; | |
372 | int ru_minflt; | |
373 | int ru_majflt; | |
374 | }; | |
375 | ||
376 | const struct kinfo_proc_layout kinfo_proc_layout_32 = | |
377 | { | |
378 | .ki_layout = 0x4, | |
379 | .ki_pid = 0x28, | |
380 | .ki_ppid = 0x2c, | |
381 | .ki_pgid = 0x30, | |
382 | .ki_tpgid = 0x34, | |
383 | .ki_sid = 0x38, | |
384 | .ki_tdev_freebsd11 = 0x44, | |
385 | .ki_sigignore = 0x68, | |
386 | .ki_sigcatch = 0x78, | |
387 | .ki_uid = 0x88, | |
388 | .ki_ruid = 0x8c, | |
389 | .ki_svuid = 0x90, | |
390 | .ki_rgid = 0x94, | |
391 | .ki_svgid = 0x98, | |
392 | .ki_ngroups = 0x9c, | |
393 | .ki_groups = 0xa0, | |
394 | .ki_size = 0xe0, | |
395 | .ki_rssize = 0xe4, | |
396 | .ki_tsize = 0xec, | |
397 | .ki_dsize = 0xf0, | |
398 | .ki_ssize = 0xf4, | |
399 | .ki_start = 0x118, | |
400 | .ki_nice = 0x145, | |
401 | .ki_comm = 0x17f, | |
402 | .ki_tdev = 0x1f0, | |
403 | .ki_rusage = 0x220, | |
404 | .ki_rusage_ch = 0x278, | |
405 | ||
406 | .ru_utime = 0x0, | |
407 | .ru_stime = 0x10, | |
408 | .ru_maxrss = 0x20, | |
409 | .ru_minflt = 0x30, | |
410 | .ru_majflt = 0x34, | |
411 | }; | |
412 | ||
413 | const struct kinfo_proc_layout kinfo_proc_layout_i386 = | |
414 | { | |
415 | .ki_layout = 0x4, | |
416 | .ki_pid = 0x28, | |
417 | .ki_ppid = 0x2c, | |
418 | .ki_pgid = 0x30, | |
419 | .ki_tpgid = 0x34, | |
420 | .ki_sid = 0x38, | |
421 | .ki_tdev_freebsd11 = 0x44, | |
422 | .ki_sigignore = 0x68, | |
423 | .ki_sigcatch = 0x78, | |
424 | .ki_uid = 0x88, | |
425 | .ki_ruid = 0x8c, | |
426 | .ki_svuid = 0x90, | |
427 | .ki_rgid = 0x94, | |
428 | .ki_svgid = 0x98, | |
429 | .ki_ngroups = 0x9c, | |
430 | .ki_groups = 0xa0, | |
431 | .ki_size = 0xe0, | |
432 | .ki_rssize = 0xe4, | |
433 | .ki_tsize = 0xec, | |
434 | .ki_dsize = 0xf0, | |
435 | .ki_ssize = 0xf4, | |
436 | .ki_start = 0x118, | |
437 | .ki_nice = 0x135, | |
438 | .ki_comm = 0x16f, | |
439 | .ki_tdev = 0x1e0, | |
440 | .ki_rusage = 0x210, | |
441 | .ki_rusage_ch = 0x258, | |
442 | ||
443 | .ru_utime = 0x0, | |
444 | .ru_stime = 0x8, | |
445 | .ru_maxrss = 0x10, | |
446 | .ru_minflt = 0x20, | |
447 | .ru_majflt = 0x24, | |
448 | }; | |
449 | ||
450 | const struct kinfo_proc_layout kinfo_proc_layout_64 = | |
451 | { | |
452 | .ki_layout = 0x4, | |
453 | .ki_pid = 0x48, | |
454 | .ki_ppid = 0x4c, | |
455 | .ki_pgid = 0x50, | |
456 | .ki_tpgid = 0x54, | |
457 | .ki_sid = 0x58, | |
458 | .ki_tdev_freebsd11 = 0x64, | |
459 | .ki_sigignore = 0x88, | |
460 | .ki_sigcatch = 0x98, | |
461 | .ki_uid = 0xa8, | |
462 | .ki_ruid = 0xac, | |
463 | .ki_svuid = 0xb0, | |
464 | .ki_rgid = 0xb4, | |
465 | .ki_svgid = 0xb8, | |
466 | .ki_ngroups = 0xbc, | |
467 | .ki_groups = 0xc0, | |
468 | .ki_size = 0x100, | |
469 | .ki_rssize = 0x108, | |
470 | .ki_tsize = 0x118, | |
471 | .ki_dsize = 0x120, | |
472 | .ki_ssize = 0x128, | |
473 | .ki_start = 0x150, | |
474 | .ki_nice = 0x185, | |
475 | .ki_comm = 0x1bf, | |
476 | .ki_tdev = 0x230, | |
477 | .ki_rusage = 0x260, | |
478 | .ki_rusage_ch = 0x2f0, | |
479 | ||
480 | .ru_utime = 0x0, | |
481 | .ru_stime = 0x10, | |
482 | .ru_maxrss = 0x20, | |
483 | .ru_minflt = 0x40, | |
484 | .ru_majflt = 0x48, | |
485 | }; | |
486 | ||
762c974a JB |
487 | static struct gdbarch_data *fbsd_gdbarch_data_handle; |
488 | ||
489 | struct fbsd_gdbarch_data | |
490 | { | |
491 | struct type *siginfo_type; | |
492 | }; | |
493 | ||
494 | static void * | |
495 | init_fbsd_gdbarch_data (struct gdbarch *gdbarch) | |
496 | { | |
497 | return GDBARCH_OBSTACK_ZALLOC (gdbarch, struct fbsd_gdbarch_data); | |
498 | } | |
499 | ||
500 | static struct fbsd_gdbarch_data * | |
501 | get_fbsd_gdbarch_data (struct gdbarch *gdbarch) | |
502 | { | |
503 | return ((struct fbsd_gdbarch_data *) | |
504 | gdbarch_data (gdbarch, fbsd_gdbarch_data_handle)); | |
505 | } | |
506 | ||
945f3901 JB |
507 | struct fbsd_pspace_data |
508 | { | |
509 | /* Offsets in the runtime linker's 'Obj_Entry' structure. */ | |
d4e05d2f TT |
510 | LONGEST off_linkmap = 0; |
511 | LONGEST off_tlsindex = 0; | |
512 | bool rtld_offsets_valid = false; | |
c1dae0a6 JB |
513 | |
514 | /* vDSO mapping range. */ | |
515 | struct mem_range vdso_range {}; | |
516 | ||
517 | /* Zero if the range hasn't been searched for, > 0 if a range was | |
518 | found, or < 0 if a range was not found. */ | |
519 | int vdso_range_p = 0; | |
945f3901 JB |
520 | }; |
521 | ||
d4e05d2f | 522 | /* Per-program-space data for FreeBSD architectures. */ |
08b8a139 | 523 | static const registry<program_space>::key<fbsd_pspace_data> |
d4e05d2f TT |
524 | fbsd_pspace_data_handle; |
525 | ||
945f3901 JB |
526 | static struct fbsd_pspace_data * |
527 | get_fbsd_pspace_data (struct program_space *pspace) | |
528 | { | |
529 | struct fbsd_pspace_data *data; | |
530 | ||
d4e05d2f | 531 | data = fbsd_pspace_data_handle.get (pspace); |
945f3901 | 532 | if (data == NULL) |
d4e05d2f | 533 | data = fbsd_pspace_data_handle.emplace (pspace); |
945f3901 JB |
534 | |
535 | return data; | |
536 | } | |
537 | ||
79117428 JB |
538 | /* This is how we want PTIDs from core files to be printed. */ |
539 | ||
a068643d | 540 | static std::string |
79117428 JB |
541 | fbsd_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid) |
542 | { | |
e38504b3 | 543 | if (ptid.lwp () != 0) |
a068643d | 544 | return string_printf ("LWP %ld", ptid.lwp ()); |
79117428 JB |
545 | |
546 | return normal_pid_to_str (ptid); | |
547 | } | |
548 | ||
549 | /* Extract the name assigned to a thread from a core. Returns the | |
550 | string in a static buffer. */ | |
551 | ||
552 | static const char * | |
553 | fbsd_core_thread_name (struct gdbarch *gdbarch, struct thread_info *thr) | |
554 | { | |
555 | static char buf[80]; | |
556 | struct bfd_section *section; | |
557 | bfd_size_type size; | |
79117428 | 558 | |
e38504b3 | 559 | if (thr->ptid.lwp () != 0) |
79117428 JB |
560 | { |
561 | /* FreeBSD includes a NT_FREEBSD_THRMISC note for each thread | |
562 | whose contents are defined by a "struct thrmisc" declared in | |
563 | <sys/procfs.h> on FreeBSD. The per-thread name is stored as | |
564 | a null-terminated string as the first member of the | |
565 | structure. Rather than define the full structure here, just | |
566 | extract the null-terminated name from the start of the | |
567 | note. */ | |
2af9fc44 JB |
568 | thread_section_name section_name (".thrmisc", thr->ptid); |
569 | ||
570 | section = bfd_get_section_by_name (core_bfd, section_name.c_str ()); | |
fd361982 | 571 | if (section != NULL && bfd_section_size (section) > 0) |
79117428 JB |
572 | { |
573 | /* Truncate the name if it is longer than "buf". */ | |
fd361982 | 574 | size = bfd_section_size (section); |
79117428 JB |
575 | if (size > sizeof buf - 1) |
576 | size = sizeof buf - 1; | |
577 | if (bfd_get_section_contents (core_bfd, section, buf, (file_ptr) 0, | |
578 | size) | |
579 | && buf[0] != '\0') | |
580 | { | |
581 | buf[size] = '\0'; | |
582 | ||
583 | /* Note that each thread will report the process command | |
584 | as its thread name instead of an empty name if a name | |
585 | has not been set explicitly. Return a NULL name in | |
586 | that case. */ | |
587 | if (strcmp (buf, elf_tdata (core_bfd)->core->program) != 0) | |
588 | return buf; | |
589 | } | |
590 | } | |
591 | } | |
592 | ||
593 | return NULL; | |
594 | } | |
595 | ||
4b654465 JB |
596 | /* Implement the "core_xfer_siginfo" gdbarch method. */ |
597 | ||
598 | static LONGEST | |
599 | fbsd_core_xfer_siginfo (struct gdbarch *gdbarch, gdb_byte *readbuf, | |
600 | ULONGEST offset, ULONGEST len) | |
601 | { | |
602 | size_t siginfo_size; | |
603 | ||
a181c0bf | 604 | if (gdbarch_long_bit (gdbarch) == 32) |
4b654465 JB |
605 | siginfo_size = SIZE32_SIGINFO_T; |
606 | else | |
607 | siginfo_size = SIZE64_SIGINFO_T; | |
608 | if (offset > siginfo_size) | |
609 | return -1; | |
610 | ||
611 | thread_section_name section_name (".note.freebsdcore.lwpinfo", inferior_ptid); | |
612 | asection *section = bfd_get_section_by_name (core_bfd, section_name.c_str ()); | |
613 | if (section == NULL) | |
614 | return -1; | |
615 | ||
616 | gdb_byte buf[4]; | |
617 | if (!bfd_get_section_contents (core_bfd, section, buf, | |
618 | LWPINFO_OFFSET + LWPINFO_PL_FLAGS, 4)) | |
619 | return -1; | |
620 | ||
2a50938a | 621 | int pl_flags = extract_signed_integer (buf, gdbarch_byte_order (gdbarch)); |
4b654465 JB |
622 | if (!(pl_flags & PL_FLAG_SI)) |
623 | return -1; | |
624 | ||
625 | if (offset + len > siginfo_size) | |
626 | len = siginfo_size - offset; | |
627 | ||
628 | ULONGEST siginfo_offset; | |
a181c0bf | 629 | if (gdbarch_long_bit (gdbarch) == 32) |
4b654465 JB |
630 | siginfo_offset = LWPINFO_OFFSET + LWPINFO32_PL_SIGINFO; |
631 | else | |
632 | siginfo_offset = LWPINFO_OFFSET + LWPINFO64_PL_SIGINFO; | |
633 | ||
634 | if (!bfd_get_section_contents (core_bfd, section, readbuf, | |
635 | siginfo_offset + offset, len)) | |
636 | return -1; | |
637 | ||
638 | return len; | |
639 | } | |
640 | ||
a904c024 AA |
641 | static int |
642 | find_signalled_thread (struct thread_info *info, void *data) | |
643 | { | |
1edb66d8 | 644 | if (info->stop_signal () != GDB_SIGNAL_0 |
e99b03dc | 645 | && info->ptid.pid () == inferior_ptid.pid ()) |
a904c024 AA |
646 | return 1; |
647 | ||
648 | return 0; | |
649 | } | |
650 | ||
739ab2e9 SS |
651 | /* Return a byte_vector containing the contents of a core dump note |
652 | for the target object of type OBJECT. If STRUCTSIZE is non-zero, | |
653 | the data is prefixed with a 32-bit integer size to match the format | |
654 | used in FreeBSD NT_PROCSTAT_* notes. */ | |
655 | ||
656 | static gdb::optional<gdb::byte_vector> | |
657 | fbsd_make_note_desc (enum target_object object, uint32_t structsize) | |
658 | { | |
659 | gdb::optional<gdb::byte_vector> buf = | |
328d42d8 | 660 | target_read_alloc (current_inferior ()->top_target (), object, NULL); |
739ab2e9 SS |
661 | if (!buf || buf->empty ()) |
662 | return {}; | |
663 | ||
664 | if (structsize == 0) | |
665 | return buf; | |
666 | ||
667 | gdb::byte_vector desc (sizeof (structsize) + buf->size ()); | |
668 | memcpy (desc.data (), &structsize, sizeof (structsize)); | |
669 | memcpy (desc.data () + sizeof (structsize), buf->data (), buf->size ()); | |
670 | return desc; | |
671 | } | |
672 | ||
a904c024 AA |
673 | /* Create appropriate note sections for a corefile, returning them in |
674 | allocated memory. */ | |
675 | ||
c21f37a8 | 676 | static gdb::unique_xmalloc_ptr<char> |
a904c024 AA |
677 | fbsd_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size) |
678 | { | |
c21f37a8 | 679 | gdb::unique_xmalloc_ptr<char> note_data; |
a904c024 | 680 | Elf_Internal_Ehdr *i_ehdrp; |
08036331 | 681 | struct thread_info *curr_thr, *signalled_thr; |
a904c024 AA |
682 | |
683 | /* Put a "FreeBSD" label in the ELF header. */ | |
684 | i_ehdrp = elf_elfheader (obfd); | |
685 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_FREEBSD; | |
686 | ||
687 | gdb_assert (gdbarch_iterate_over_regset_sections_p (gdbarch)); | |
688 | ||
a904c024 AA |
689 | if (get_exec_file (0)) |
690 | { | |
691 | const char *fname = lbasename (get_exec_file (0)); | |
0afbabf0 | 692 | std::string psargs = fname; |
a904c024 | 693 | |
fd2dec2a SM |
694 | const std::string &infargs = current_inferior ()->args (); |
695 | if (!infargs.empty ()) | |
696 | psargs += ' ' + infargs; | |
a904c024 | 697 | |
c21f37a8 SM |
698 | note_data.reset (elfcore_write_prpsinfo (obfd, note_data.release (), |
699 | note_size, fname, | |
700 | psargs.c_str ())); | |
a904c024 AA |
701 | } |
702 | ||
20a0aab3 | 703 | /* Thread register information. */ |
a70b8144 | 704 | try |
20a0aab3 JB |
705 | { |
706 | update_thread_list (); | |
707 | } | |
230d2906 | 708 | catch (const gdb_exception_error &e) |
20a0aab3 JB |
709 | { |
710 | exception_print (gdb_stderr, e); | |
711 | } | |
20a0aab3 JB |
712 | |
713 | /* Like the kernel, prefer dumping the signalled thread first. | |
714 | "First thread" is what tools use to infer the signalled thread. | |
715 | In case there's more than one signalled thread, prefer the | |
716 | current thread, if it is signalled. */ | |
717 | curr_thr = inferior_thread (); | |
1edb66d8 | 718 | if (curr_thr->stop_signal () != GDB_SIGNAL_0) |
20a0aab3 JB |
719 | signalled_thr = curr_thr; |
720 | else | |
721 | { | |
722 | signalled_thr = iterate_over_threads (find_signalled_thread, NULL); | |
723 | if (signalled_thr == NULL) | |
724 | signalled_thr = curr_thr; | |
725 | } | |
726 | ||
1edb66d8 | 727 | enum gdb_signal stop_signal = signalled_thr->stop_signal (); |
f3a5df7b AB |
728 | gcore_elf_build_thread_register_notes (gdbarch, signalled_thr, stop_signal, |
729 | obfd, ¬e_data, note_size); | |
08036331 | 730 | for (thread_info *thr : current_inferior ()->non_exited_threads ()) |
20a0aab3 JB |
731 | { |
732 | if (thr == signalled_thr) | |
733 | continue; | |
20a0aab3 | 734 | |
f3a5df7b AB |
735 | gcore_elf_build_thread_register_notes (gdbarch, thr, stop_signal, |
736 | obfd, ¬e_data, note_size); | |
20a0aab3 JB |
737 | } |
738 | ||
739ab2e9 SS |
739 | /* Auxiliary vector. */ |
740 | uint32_t structsize = gdbarch_ptr_bit (gdbarch) / 4; /* Elf_Auxinfo */ | |
741 | gdb::optional<gdb::byte_vector> note_desc = | |
742 | fbsd_make_note_desc (TARGET_OBJECT_AUXV, structsize); | |
743 | if (note_desc && !note_desc->empty ()) | |
744 | { | |
c21f37a8 SM |
745 | note_data.reset (elfcore_write_note (obfd, note_data.release (), |
746 | note_size, "FreeBSD", | |
747 | NT_FREEBSD_PROCSTAT_AUXV, | |
748 | note_desc->data (), | |
749 | note_desc->size ())); | |
739ab2e9 SS |
750 | if (!note_data) |
751 | return NULL; | |
752 | } | |
753 | ||
754 | /* Virtual memory mappings. */ | |
755 | note_desc = fbsd_make_note_desc (TARGET_OBJECT_FREEBSD_VMMAP, 0); | |
756 | if (note_desc && !note_desc->empty ()) | |
757 | { | |
c21f37a8 SM |
758 | note_data.reset (elfcore_write_note (obfd, note_data.release (), |
759 | note_size, "FreeBSD", | |
760 | NT_FREEBSD_PROCSTAT_VMMAP, | |
761 | note_desc->data (), | |
762 | note_desc->size ())); | |
739ab2e9 SS |
763 | if (!note_data) |
764 | return NULL; | |
765 | } | |
766 | ||
767 | note_desc = fbsd_make_note_desc (TARGET_OBJECT_FREEBSD_PS_STRINGS, 0); | |
768 | if (note_desc && !note_desc->empty ()) | |
769 | { | |
c21f37a8 SM |
770 | note_data.reset (elfcore_write_note (obfd, note_data.release (), |
771 | note_size, "FreeBSD", | |
772 | NT_FREEBSD_PROCSTAT_PSSTRINGS, | |
773 | note_desc->data (), | |
774 | note_desc->size ())); | |
739ab2e9 SS |
775 | if (!note_data) |
776 | return NULL; | |
777 | } | |
778 | ||
95ce627a AB |
779 | /* Include the target description when possible. */ |
780 | gcore_elf_make_tdesc_note (obfd, ¬e_data, note_size); | |
781 | ||
a904c024 AA |
782 | return note_data; |
783 | } | |
784 | ||
57c2a98a JB |
785 | /* Helper function to generate the file descriptor description for a |
786 | single open file in 'info proc files'. */ | |
787 | ||
788 | static const char * | |
789 | fbsd_file_fd (int kf_fd) | |
790 | { | |
791 | switch (kf_fd) | |
792 | { | |
793 | case KINFO_FILE_FD_TYPE_CWD: | |
794 | return "cwd"; | |
795 | case KINFO_FILE_FD_TYPE_ROOT: | |
796 | return "root"; | |
797 | case KINFO_FILE_FD_TYPE_JAIL: | |
798 | return "jail"; | |
799 | case KINFO_FILE_FD_TYPE_TRACE: | |
800 | return "trace"; | |
801 | case KINFO_FILE_FD_TYPE_TEXT: | |
802 | return "text"; | |
803 | case KINFO_FILE_FD_TYPE_CTTY: | |
804 | return "ctty"; | |
805 | default: | |
806 | return int_string (kf_fd, 10, 1, 0, 0); | |
807 | } | |
808 | } | |
809 | ||
810 | /* Helper function to generate the file type for a single open file in | |
811 | 'info proc files'. */ | |
812 | ||
813 | static const char * | |
814 | fbsd_file_type (int kf_type, int kf_vnode_type) | |
815 | { | |
816 | switch (kf_type) | |
817 | { | |
818 | case KINFO_FILE_TYPE_VNODE: | |
819 | switch (kf_vnode_type) | |
820 | { | |
821 | case KINFO_FILE_VTYPE_VREG: | |
822 | return "file"; | |
823 | case KINFO_FILE_VTYPE_VDIR: | |
824 | return "dir"; | |
825 | case KINFO_FILE_VTYPE_VCHR: | |
826 | return "chr"; | |
827 | case KINFO_FILE_VTYPE_VLNK: | |
828 | return "link"; | |
829 | case KINFO_FILE_VTYPE_VSOCK: | |
830 | return "socket"; | |
831 | case KINFO_FILE_VTYPE_VFIFO: | |
832 | return "fifo"; | |
833 | default: | |
834 | { | |
835 | char *str = get_print_cell (); | |
836 | ||
837 | xsnprintf (str, PRINT_CELL_SIZE, "vn:%d", kf_vnode_type); | |
838 | return str; | |
839 | } | |
840 | } | |
841 | case KINFO_FILE_TYPE_SOCKET: | |
842 | return "socket"; | |
843 | case KINFO_FILE_TYPE_PIPE: | |
844 | return "pipe"; | |
845 | case KINFO_FILE_TYPE_FIFO: | |
846 | return "fifo"; | |
847 | case KINFO_FILE_TYPE_KQUEUE: | |
848 | return "kqueue"; | |
849 | case KINFO_FILE_TYPE_CRYPTO: | |
850 | return "crypto"; | |
851 | case KINFO_FILE_TYPE_MQUEUE: | |
852 | return "mqueue"; | |
853 | case KINFO_FILE_TYPE_SHM: | |
854 | return "shm"; | |
855 | case KINFO_FILE_TYPE_SEM: | |
856 | return "sem"; | |
857 | case KINFO_FILE_TYPE_PTS: | |
858 | return "pts"; | |
859 | case KINFO_FILE_TYPE_PROCDESC: | |
860 | return "proc"; | |
861 | default: | |
862 | return int_string (kf_type, 10, 1, 0, 0); | |
863 | } | |
864 | } | |
865 | ||
866 | /* Helper function to generate the file flags for a single open file in | |
867 | 'info proc files'. */ | |
868 | ||
869 | static const char * | |
870 | fbsd_file_flags (int kf_flags) | |
871 | { | |
872 | static char file_flags[10]; | |
873 | ||
874 | file_flags[0] = (kf_flags & KINFO_FILE_FLAG_READ) ? 'r' : '-'; | |
875 | file_flags[1] = (kf_flags & KINFO_FILE_FLAG_WRITE) ? 'w' : '-'; | |
876 | file_flags[2] = (kf_flags & KINFO_FILE_FLAG_EXEC) ? 'x' : '-'; | |
877 | file_flags[3] = (kf_flags & KINFO_FILE_FLAG_APPEND) ? 'a' : '-'; | |
878 | file_flags[4] = (kf_flags & KINFO_FILE_FLAG_ASYNC) ? 's' : '-'; | |
879 | file_flags[5] = (kf_flags & KINFO_FILE_FLAG_FSYNC) ? 'f' : '-'; | |
880 | file_flags[6] = (kf_flags & KINFO_FILE_FLAG_NONBLOCK) ? 'n' : '-'; | |
881 | file_flags[7] = (kf_flags & KINFO_FILE_FLAG_DIRECT) ? 'd' : '-'; | |
882 | file_flags[8] = (kf_flags & KINFO_FILE_FLAG_HASLOCK) ? 'l' : '-'; | |
883 | file_flags[9] = '\0'; | |
884 | ||
885 | return file_flags; | |
886 | } | |
887 | ||
888 | /* Helper function to generate the name of an IP protocol. */ | |
889 | ||
890 | static const char * | |
891 | fbsd_ipproto (int protocol) | |
892 | { | |
893 | switch (protocol) | |
894 | { | |
895 | case FBSD_IPPROTO_ICMP: | |
896 | return "icmp"; | |
897 | case FBSD_IPPROTO_TCP: | |
898 | return "tcp"; | |
899 | case FBSD_IPPROTO_UDP: | |
900 | return "udp"; | |
901 | case FBSD_IPPROTO_SCTP: | |
902 | return "sctp"; | |
903 | default: | |
904 | { | |
905 | char *str = get_print_cell (); | |
906 | ||
907 | xsnprintf (str, PRINT_CELL_SIZE, "ip<%d>", protocol); | |
908 | return str; | |
909 | } | |
910 | } | |
911 | } | |
912 | ||
913 | /* Helper function to print out an IPv4 socket address. */ | |
914 | ||
915 | static void | |
916 | fbsd_print_sockaddr_in (const void *sockaddr) | |
917 | { | |
918 | const struct fbsd_sockaddr_in *sin = | |
919 | reinterpret_cast<const struct fbsd_sockaddr_in *> (sockaddr); | |
920 | char buf[INET_ADDRSTRLEN]; | |
921 | ||
07147793 | 922 | if (inet_ntop (AF_INET, sin->sin_addr, buf, sizeof buf) == nullptr) |
57c2a98a | 923 | error (_("Failed to format IPv4 address")); |
6cb06a8c TT |
924 | gdb_printf ("%s:%u", buf, |
925 | (sin->sin_port[0] << 8) | sin->sin_port[1]); | |
57c2a98a JB |
926 | } |
927 | ||
928 | /* Helper function to print out an IPv6 socket address. */ | |
929 | ||
930 | static void | |
931 | fbsd_print_sockaddr_in6 (const void *sockaddr) | |
932 | { | |
933 | const struct fbsd_sockaddr_in6 *sin6 = | |
934 | reinterpret_cast<const struct fbsd_sockaddr_in6 *> (sockaddr); | |
935 | char buf[INET6_ADDRSTRLEN]; | |
936 | ||
07147793 | 937 | if (inet_ntop (AF_INET6, sin6->sin6_addr, buf, sizeof buf) == nullptr) |
57c2a98a | 938 | error (_("Failed to format IPv6 address")); |
6cb06a8c TT |
939 | gdb_printf ("%s.%u", buf, |
940 | (sin6->sin6_port[0] << 8) | sin6->sin6_port[1]); | |
57c2a98a JB |
941 | } |
942 | ||
943 | /* See fbsd-tdep.h. */ | |
944 | ||
945 | void | |
946 | fbsd_info_proc_files_header () | |
947 | { | |
6cb06a8c TT |
948 | gdb_printf (_("Open files:\n\n")); |
949 | gdb_printf (" %6s %6s %10s %9s %s\n", | |
950 | "FD", "Type", "Offset", "Flags ", "Name"); | |
57c2a98a JB |
951 | } |
952 | ||
953 | /* See fbsd-tdep.h. */ | |
954 | ||
955 | void | |
956 | fbsd_info_proc_files_entry (int kf_type, int kf_fd, int kf_flags, | |
957 | LONGEST kf_offset, int kf_vnode_type, | |
958 | int kf_sock_domain, int kf_sock_type, | |
959 | int kf_sock_protocol, const void *kf_sa_local, | |
960 | const void *kf_sa_peer, const void *kf_path) | |
961 | { | |
6cb06a8c TT |
962 | gdb_printf (" %6s %6s %10s %8s ", |
963 | fbsd_file_fd (kf_fd), | |
964 | fbsd_file_type (kf_type, kf_vnode_type), | |
965 | kf_offset > -1 ? hex_string (kf_offset) : "-", | |
966 | fbsd_file_flags (kf_flags)); | |
57c2a98a JB |
967 | if (kf_type == KINFO_FILE_TYPE_SOCKET) |
968 | { | |
969 | switch (kf_sock_domain) | |
970 | { | |
971 | case FBSD_AF_UNIX: | |
972 | { | |
973 | switch (kf_sock_type) | |
974 | { | |
975 | case FBSD_SOCK_STREAM: | |
6cb06a8c | 976 | gdb_printf ("unix stream:"); |
57c2a98a JB |
977 | break; |
978 | case FBSD_SOCK_DGRAM: | |
6cb06a8c | 979 | gdb_printf ("unix dgram:"); |
57c2a98a JB |
980 | break; |
981 | case FBSD_SOCK_SEQPACKET: | |
6cb06a8c | 982 | gdb_printf ("unix seqpacket:"); |
57c2a98a JB |
983 | break; |
984 | default: | |
6cb06a8c | 985 | gdb_printf ("unix <%d>:", kf_sock_type); |
57c2a98a JB |
986 | break; |
987 | } | |
988 | ||
989 | /* For local sockets, print out the first non-nul path | |
990 | rather than both paths. */ | |
aa989b27 | 991 | const struct fbsd_sockaddr_un *saddr_un |
57c2a98a | 992 | = reinterpret_cast<const struct fbsd_sockaddr_un *> (kf_sa_local); |
aa989b27 CB |
993 | if (saddr_un->sun_path[0] == 0) |
994 | saddr_un = reinterpret_cast<const struct fbsd_sockaddr_un *> | |
57c2a98a | 995 | (kf_sa_peer); |
6cb06a8c | 996 | gdb_printf ("%s", saddr_un->sun_path); |
57c2a98a JB |
997 | break; |
998 | } | |
999 | case FBSD_AF_INET: | |
6cb06a8c | 1000 | gdb_printf ("%s4 ", fbsd_ipproto (kf_sock_protocol)); |
57c2a98a | 1001 | fbsd_print_sockaddr_in (kf_sa_local); |
6cb06a8c | 1002 | gdb_printf (" -> "); |
57c2a98a JB |
1003 | fbsd_print_sockaddr_in (kf_sa_peer); |
1004 | break; | |
1005 | case FBSD_AF_INET6: | |
6cb06a8c | 1006 | gdb_printf ("%s6 ", fbsd_ipproto (kf_sock_protocol)); |
57c2a98a | 1007 | fbsd_print_sockaddr_in6 (kf_sa_local); |
6cb06a8c | 1008 | gdb_printf (" -> "); |
57c2a98a JB |
1009 | fbsd_print_sockaddr_in6 (kf_sa_peer); |
1010 | break; | |
1011 | } | |
1012 | } | |
1013 | else | |
6cb06a8c TT |
1014 | gdb_printf ("%s", reinterpret_cast<const char *> (kf_path)); |
1015 | gdb_printf ("\n"); | |
57c2a98a JB |
1016 | } |
1017 | ||
1018 | /* Implement "info proc files" for a corefile. */ | |
1019 | ||
1020 | static void | |
1021 | fbsd_core_info_proc_files (struct gdbarch *gdbarch) | |
1022 | { | |
1023 | asection *section | |
1024 | = bfd_get_section_by_name (core_bfd, ".note.freebsdcore.files"); | |
1025 | if (section == NULL) | |
1026 | { | |
1027 | warning (_("unable to find open files in core file")); | |
1028 | return; | |
1029 | } | |
1030 | ||
fd361982 | 1031 | size_t note_size = bfd_section_size (section); |
57c2a98a JB |
1032 | if (note_size < 4) |
1033 | error (_("malformed core note - too short for header")); | |
1034 | ||
1035 | gdb::def_vector<unsigned char> contents (note_size); | |
1036 | if (!bfd_get_section_contents (core_bfd, section, contents.data (), | |
1037 | 0, note_size)) | |
1038 | error (_("could not get core note contents")); | |
1039 | ||
1040 | unsigned char *descdata = contents.data (); | |
1041 | unsigned char *descend = descdata + note_size; | |
1042 | ||
1043 | /* Skip over the structure size. */ | |
1044 | descdata += 4; | |
1045 | ||
1046 | fbsd_info_proc_files_header (); | |
1047 | ||
1048 | while (descdata + KF_PATH < descend) | |
1049 | { | |
1050 | ULONGEST structsize = bfd_get_32 (core_bfd, descdata + KF_STRUCTSIZE); | |
1051 | if (structsize < KF_PATH) | |
1052 | error (_("malformed core note - file structure too small")); | |
1053 | ||
1054 | LONGEST type = bfd_get_signed_32 (core_bfd, descdata + KF_TYPE); | |
1055 | LONGEST fd = bfd_get_signed_32 (core_bfd, descdata + KF_FD); | |
1056 | LONGEST flags = bfd_get_signed_32 (core_bfd, descdata + KF_FLAGS); | |
1057 | LONGEST offset = bfd_get_signed_64 (core_bfd, descdata + KF_OFFSET); | |
1058 | LONGEST vnode_type = bfd_get_signed_32 (core_bfd, | |
1059 | descdata + KF_VNODE_TYPE); | |
1060 | LONGEST sock_domain = bfd_get_signed_32 (core_bfd, | |
1061 | descdata + KF_SOCK_DOMAIN); | |
1062 | LONGEST sock_type = bfd_get_signed_32 (core_bfd, descdata + KF_SOCK_TYPE); | |
1063 | LONGEST sock_protocol = bfd_get_signed_32 (core_bfd, | |
1064 | descdata + KF_SOCK_PROTOCOL); | |
1065 | fbsd_info_proc_files_entry (type, fd, flags, offset, vnode_type, | |
1066 | sock_domain, sock_type, sock_protocol, | |
1067 | descdata + KF_SA_LOCAL, descdata + KF_SA_PEER, | |
1068 | descdata + KF_PATH); | |
1069 | ||
1070 | descdata += structsize; | |
1071 | } | |
1072 | } | |
1073 | ||
d2176225 JB |
1074 | /* Helper function to generate mappings flags for a single VM map |
1075 | entry in 'info proc mappings'. */ | |
1076 | ||
6f3b1098 | 1077 | static const char * |
d2176225 JB |
1078 | fbsd_vm_map_entry_flags (int kve_flags, int kve_protection) |
1079 | { | |
1080 | static char vm_flags[9]; | |
1081 | ||
1082 | vm_flags[0] = (kve_protection & KINFO_VME_PROT_READ) ? 'r' : '-'; | |
1083 | vm_flags[1] = (kve_protection & KINFO_VME_PROT_WRITE) ? 'w' : '-'; | |
1084 | vm_flags[2] = (kve_protection & KINFO_VME_PROT_EXEC) ? 'x' : '-'; | |
1085 | vm_flags[3] = ' '; | |
1086 | vm_flags[4] = (kve_flags & KINFO_VME_FLAG_COW) ? 'C' : '-'; | |
1087 | vm_flags[5] = (kve_flags & KINFO_VME_FLAG_NEEDS_COPY) ? 'N' : '-'; | |
1088 | vm_flags[6] = (kve_flags & KINFO_VME_FLAG_SUPER) ? 'S' : '-'; | |
1089 | vm_flags[7] = (kve_flags & KINFO_VME_FLAG_GROWS_UP) ? 'U' | |
1090 | : (kve_flags & KINFO_VME_FLAG_GROWS_DOWN) ? 'D' : '-'; | |
1091 | vm_flags[8] = '\0'; | |
1092 | ||
1093 | return vm_flags; | |
1094 | } | |
1095 | ||
6f3b1098 JB |
1096 | /* See fbsd-tdep.h. */ |
1097 | ||
1098 | void | |
1099 | fbsd_info_proc_mappings_header (int addr_bit) | |
1100 | { | |
6cb06a8c | 1101 | gdb_printf (_("Mapped address spaces:\n\n")); |
6f3b1098 JB |
1102 | if (addr_bit == 64) |
1103 | { | |
6cb06a8c TT |
1104 | gdb_printf (" %18s %18s %10s %10s %9s %s\n", |
1105 | "Start Addr", | |
1106 | " End Addr", | |
1107 | " Size", " Offset", "Flags ", "File"); | |
6f3b1098 JB |
1108 | } |
1109 | else | |
1110 | { | |
6cb06a8c TT |
1111 | gdb_printf ("\t%10s %10s %10s %10s %9s %s\n", |
1112 | "Start Addr", | |
1113 | " End Addr", | |
1114 | " Size", " Offset", "Flags ", "File"); | |
6f3b1098 JB |
1115 | } |
1116 | } | |
1117 | ||
1118 | /* See fbsd-tdep.h. */ | |
1119 | ||
1120 | void | |
1121 | fbsd_info_proc_mappings_entry (int addr_bit, ULONGEST kve_start, | |
1122 | ULONGEST kve_end, ULONGEST kve_offset, | |
1123 | int kve_flags, int kve_protection, | |
1124 | const void *kve_path) | |
1125 | { | |
1126 | if (addr_bit == 64) | |
1127 | { | |
6cb06a8c TT |
1128 | gdb_printf (" %18s %18s %10s %10s %9s %s\n", |
1129 | hex_string (kve_start), | |
1130 | hex_string (kve_end), | |
1131 | hex_string (kve_end - kve_start), | |
1132 | hex_string (kve_offset), | |
1133 | fbsd_vm_map_entry_flags (kve_flags, kve_protection), | |
1134 | reinterpret_cast<const char *> (kve_path)); | |
6f3b1098 JB |
1135 | } |
1136 | else | |
1137 | { | |
6cb06a8c TT |
1138 | gdb_printf ("\t%10s %10s %10s %10s %9s %s\n", |
1139 | hex_string (kve_start), | |
1140 | hex_string (kve_end), | |
1141 | hex_string (kve_end - kve_start), | |
1142 | hex_string (kve_offset), | |
1143 | fbsd_vm_map_entry_flags (kve_flags, kve_protection), | |
1144 | reinterpret_cast<const char *> (kve_path)); | |
6f3b1098 JB |
1145 | } |
1146 | } | |
1147 | ||
d2176225 JB |
1148 | /* Implement "info proc mappings" for a corefile. */ |
1149 | ||
1150 | static void | |
1151 | fbsd_core_info_proc_mappings (struct gdbarch *gdbarch) | |
1152 | { | |
1153 | asection *section; | |
1154 | unsigned char *descdata, *descend; | |
1155 | size_t note_size; | |
1156 | ||
1157 | section = bfd_get_section_by_name (core_bfd, ".note.freebsdcore.vmmap"); | |
1158 | if (section == NULL) | |
1159 | { | |
1160 | warning (_("unable to find mappings in core file")); | |
1161 | return; | |
1162 | } | |
1163 | ||
fd361982 | 1164 | note_size = bfd_section_size (section); |
d2176225 JB |
1165 | if (note_size < 4) |
1166 | error (_("malformed core note - too short for header")); | |
1167 | ||
1168 | gdb::def_vector<unsigned char> contents (note_size); | |
1169 | if (!bfd_get_section_contents (core_bfd, section, contents.data (), | |
1170 | 0, note_size)) | |
1171 | error (_("could not get core note contents")); | |
1172 | ||
1173 | descdata = contents.data (); | |
1174 | descend = descdata + note_size; | |
1175 | ||
1176 | /* Skip over the structure size. */ | |
1177 | descdata += 4; | |
1178 | ||
6f3b1098 | 1179 | fbsd_info_proc_mappings_header (gdbarch_addr_bit (gdbarch)); |
d2176225 JB |
1180 | while (descdata + KVE_PATH < descend) |
1181 | { | |
6f3b1098 | 1182 | ULONGEST structsize = bfd_get_32 (core_bfd, descdata + KVE_STRUCTSIZE); |
d2176225 JB |
1183 | if (structsize < KVE_PATH) |
1184 | error (_("malformed core note - vmmap entry too small")); | |
1185 | ||
6f3b1098 JB |
1186 | ULONGEST start = bfd_get_64 (core_bfd, descdata + KVE_START); |
1187 | ULONGEST end = bfd_get_64 (core_bfd, descdata + KVE_END); | |
1188 | ULONGEST offset = bfd_get_64 (core_bfd, descdata + KVE_OFFSET); | |
1189 | LONGEST flags = bfd_get_signed_32 (core_bfd, descdata + KVE_FLAGS); | |
1190 | LONGEST prot = bfd_get_signed_32 (core_bfd, descdata + KVE_PROTECTION); | |
1191 | fbsd_info_proc_mappings_entry (gdbarch_addr_bit (gdbarch), start, end, | |
1192 | offset, flags, prot, descdata + KVE_PATH); | |
d2176225 JB |
1193 | |
1194 | descdata += structsize; | |
1195 | } | |
1196 | } | |
1197 | ||
1198 | /* Fetch the pathname of a vnode for a single file descriptor from the | |
1199 | file table core note. */ | |
1200 | ||
1201 | static gdb::unique_xmalloc_ptr<char> | |
1202 | fbsd_core_vnode_path (struct gdbarch *gdbarch, int fd) | |
1203 | { | |
1204 | asection *section; | |
1205 | unsigned char *descdata, *descend; | |
1206 | size_t note_size; | |
1207 | ||
1208 | section = bfd_get_section_by_name (core_bfd, ".note.freebsdcore.files"); | |
1209 | if (section == NULL) | |
1210 | return nullptr; | |
1211 | ||
fd361982 | 1212 | note_size = bfd_section_size (section); |
d2176225 JB |
1213 | if (note_size < 4) |
1214 | error (_("malformed core note - too short for header")); | |
1215 | ||
1216 | gdb::def_vector<unsigned char> contents (note_size); | |
1217 | if (!bfd_get_section_contents (core_bfd, section, contents.data (), | |
1218 | 0, note_size)) | |
1219 | error (_("could not get core note contents")); | |
1220 | ||
1221 | descdata = contents.data (); | |
1222 | descend = descdata + note_size; | |
1223 | ||
1224 | /* Skip over the structure size. */ | |
1225 | descdata += 4; | |
1226 | ||
9f235e09 | 1227 | while (descdata + KF_PATH < descend) |
d2176225 JB |
1228 | { |
1229 | ULONGEST structsize; | |
1230 | ||
1231 | structsize = bfd_get_32 (core_bfd, descdata + KF_STRUCTSIZE); | |
9f235e09 JB |
1232 | if (structsize < KF_PATH) |
1233 | error (_("malformed core note - file structure too small")); | |
d2176225 JB |
1234 | |
1235 | if (bfd_get_32 (core_bfd, descdata + KF_TYPE) == KINFO_FILE_TYPE_VNODE | |
1236 | && bfd_get_signed_32 (core_bfd, descdata + KF_FD) == fd) | |
1237 | { | |
1238 | char *path = (char *) descdata + KF_PATH; | |
b02f78f9 | 1239 | return make_unique_xstrdup (path); |
d2176225 JB |
1240 | } |
1241 | ||
1242 | descdata += structsize; | |
1243 | } | |
1244 | return nullptr; | |
1245 | } | |
1246 | ||
1247 | /* Helper function to read a struct timeval. */ | |
1248 | ||
1249 | static void | |
1250 | fbsd_core_fetch_timeval (struct gdbarch *gdbarch, unsigned char *data, | |
1251 | LONGEST &sec, ULONGEST &usec) | |
1252 | { | |
1253 | if (gdbarch_addr_bit (gdbarch) == 64) | |
1254 | { | |
1255 | sec = bfd_get_signed_64 (core_bfd, data); | |
1256 | usec = bfd_get_64 (core_bfd, data + 8); | |
1257 | } | |
1258 | else if (bfd_get_arch (core_bfd) == bfd_arch_i386) | |
1259 | { | |
1260 | sec = bfd_get_signed_32 (core_bfd, data); | |
1261 | usec = bfd_get_32 (core_bfd, data + 4); | |
1262 | } | |
1263 | else | |
1264 | { | |
1265 | sec = bfd_get_signed_64 (core_bfd, data); | |
1266 | usec = bfd_get_32 (core_bfd, data + 8); | |
1267 | } | |
1268 | } | |
1269 | ||
1270 | /* Print out the contents of a signal set. */ | |
1271 | ||
1272 | static void | |
1273 | fbsd_print_sigset (const char *descr, unsigned char *sigset) | |
1274 | { | |
6cb06a8c | 1275 | gdb_printf ("%s: ", descr); |
d2176225 | 1276 | for (int i = 0; i < SIG_WORDS; i++) |
6cb06a8c TT |
1277 | gdb_printf ("%08x ", |
1278 | (unsigned int) bfd_get_32 (core_bfd, sigset + i * 4)); | |
1279 | gdb_printf ("\n"); | |
d2176225 JB |
1280 | } |
1281 | ||
1282 | /* Implement "info proc status" for a corefile. */ | |
1283 | ||
1284 | static void | |
1285 | fbsd_core_info_proc_status (struct gdbarch *gdbarch) | |
1286 | { | |
1287 | const struct kinfo_proc_layout *kp; | |
1288 | asection *section; | |
d2176225 JB |
1289 | unsigned char *descdata; |
1290 | int addr_bit, long_bit; | |
1291 | size_t note_size; | |
1292 | ULONGEST value; | |
1293 | LONGEST sec; | |
1294 | ||
1295 | section = bfd_get_section_by_name (core_bfd, ".note.freebsdcore.proc"); | |
1296 | if (section == NULL) | |
1297 | { | |
1298 | warning (_("unable to find process info in core file")); | |
1299 | return; | |
1300 | } | |
1301 | ||
1302 | addr_bit = gdbarch_addr_bit (gdbarch); | |
1303 | if (addr_bit == 64) | |
1304 | kp = &kinfo_proc_layout_64; | |
1305 | else if (bfd_get_arch (core_bfd) == bfd_arch_i386) | |
1306 | kp = &kinfo_proc_layout_i386; | |
1307 | else | |
1308 | kp = &kinfo_proc_layout_32; | |
1309 | long_bit = gdbarch_long_bit (gdbarch); | |
1310 | ||
1311 | /* | |
1312 | * Ensure that the note is large enough for all of the fields fetched | |
1313 | * by this function. In particular, the note must contain the 32-bit | |
1314 | * structure size, then it must be long enough to access the last | |
1315 | * field used (ki_rusage_ch.ru_majflt) which is the size of a long. | |
1316 | */ | |
fd361982 | 1317 | note_size = bfd_section_size (section); |
d2176225 JB |
1318 | if (note_size < (4 + kp->ki_rusage_ch + kp->ru_majflt |
1319 | + long_bit / TARGET_CHAR_BIT)) | |
1320 | error (_("malformed core note - too short")); | |
1321 | ||
1322 | gdb::def_vector<unsigned char> contents (note_size); | |
1323 | if (!bfd_get_section_contents (core_bfd, section, contents.data (), | |
1324 | 0, note_size)) | |
1325 | error (_("could not get core note contents")); | |
1326 | ||
1327 | descdata = contents.data (); | |
1328 | ||
1329 | /* Skip over the structure size. */ | |
1330 | descdata += 4; | |
1331 | ||
1332 | /* Verify 'ki_layout' is 0. */ | |
1333 | if (bfd_get_32 (core_bfd, descdata + kp->ki_layout) != 0) | |
1334 | { | |
1335 | warning (_("unsupported process information in core file")); | |
1336 | return; | |
1337 | } | |
1338 | ||
6cb06a8c TT |
1339 | gdb_printf ("Name: %.19s\n", descdata + kp->ki_comm); |
1340 | gdb_printf ("Process ID: %s\n", | |
1341 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_pid))); | |
1342 | gdb_printf ("Parent process: %s\n", | |
1343 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_ppid))); | |
1344 | gdb_printf ("Process group: %s\n", | |
1345 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_pgid))); | |
1346 | gdb_printf ("Session id: %s\n", | |
1347 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_sid))); | |
d2176225 JB |
1348 | |
1349 | /* FreeBSD 12.0 and later store a 64-bit dev_t at 'ki_tdev'. Older | |
1350 | kernels store a 32-bit dev_t at 'ki_tdev_freebsd11'. In older | |
1351 | kernels the 64-bit 'ki_tdev' field is in a reserved section of | |
1352 | the structure that is cleared to zero. Assume that a zero value | |
1353 | in ki_tdev indicates a core dump from an older kernel and use the | |
1354 | value in 'ki_tdev_freebsd11' instead. */ | |
1355 | value = bfd_get_64 (core_bfd, descdata + kp->ki_tdev); | |
1356 | if (value == 0) | |
1357 | value = bfd_get_32 (core_bfd, descdata + kp->ki_tdev_freebsd11); | |
6cb06a8c TT |
1358 | gdb_printf ("TTY: %s\n", pulongest (value)); |
1359 | gdb_printf ("TTY owner process group: %s\n", | |
1360 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_tpgid))); | |
1361 | gdb_printf ("User IDs (real, effective, saved): %s %s %s\n", | |
1362 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_ruid)), | |
1363 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_uid)), | |
1364 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_svuid))); | |
1365 | gdb_printf ("Group IDs (real, effective, saved): %s %s %s\n", | |
1366 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_rgid)), | |
1367 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_groups)), | |
1368 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_svgid))); | |
1369 | gdb_printf ("Groups: "); | |
d2176225 JB |
1370 | uint16_t ngroups = bfd_get_16 (core_bfd, descdata + kp->ki_ngroups); |
1371 | for (int i = 0; i < ngroups; i++) | |
6cb06a8c TT |
1372 | gdb_printf ("%s ", |
1373 | pulongest (bfd_get_32 (core_bfd, | |
1374 | descdata + kp->ki_groups + i * 4))); | |
1375 | gdb_printf ("\n"); | |
d2176225 JB |
1376 | value = bfd_get (long_bit, core_bfd, |
1377 | descdata + kp->ki_rusage + kp->ru_minflt); | |
6cb06a8c | 1378 | gdb_printf ("Minor faults (no memory page): %s\n", pulongest (value)); |
d2176225 JB |
1379 | value = bfd_get (long_bit, core_bfd, |
1380 | descdata + kp->ki_rusage_ch + kp->ru_minflt); | |
6cb06a8c | 1381 | gdb_printf ("Minor faults, children: %s\n", pulongest (value)); |
d2176225 JB |
1382 | value = bfd_get (long_bit, core_bfd, |
1383 | descdata + kp->ki_rusage + kp->ru_majflt); | |
6cb06a8c TT |
1384 | gdb_printf ("Major faults (memory page faults): %s\n", |
1385 | pulongest (value)); | |
d2176225 JB |
1386 | value = bfd_get (long_bit, core_bfd, |
1387 | descdata + kp->ki_rusage_ch + kp->ru_majflt); | |
6cb06a8c | 1388 | gdb_printf ("Major faults, children: %s\n", pulongest (value)); |
d2176225 JB |
1389 | fbsd_core_fetch_timeval (gdbarch, |
1390 | descdata + kp->ki_rusage + kp->ru_utime, | |
1391 | sec, value); | |
6cb06a8c | 1392 | gdb_printf ("utime: %s.%06d\n", plongest (sec), (int) value); |
d2176225 JB |
1393 | fbsd_core_fetch_timeval (gdbarch, |
1394 | descdata + kp->ki_rusage + kp->ru_stime, | |
1395 | sec, value); | |
6cb06a8c | 1396 | gdb_printf ("stime: %s.%06d\n", plongest (sec), (int) value); |
d2176225 JB |
1397 | fbsd_core_fetch_timeval (gdbarch, |
1398 | descdata + kp->ki_rusage_ch + kp->ru_utime, | |
1399 | sec, value); | |
6cb06a8c | 1400 | gdb_printf ("utime, children: %s.%06d\n", plongest (sec), (int) value); |
d2176225 JB |
1401 | fbsd_core_fetch_timeval (gdbarch, |
1402 | descdata + kp->ki_rusage_ch + kp->ru_stime, | |
1403 | sec, value); | |
6cb06a8c TT |
1404 | gdb_printf ("stime, children: %s.%06d\n", plongest (sec), (int) value); |
1405 | gdb_printf ("'nice' value: %d\n", | |
1406 | (int) bfd_get_signed_8 (core_bfd, descdata + kp->ki_nice)); | |
d2176225 | 1407 | fbsd_core_fetch_timeval (gdbarch, descdata + kp->ki_start, sec, value); |
6cb06a8c TT |
1408 | gdb_printf ("Start time: %s.%06d\n", plongest (sec), (int) value); |
1409 | gdb_printf ("Virtual memory size: %s kB\n", | |
1410 | pulongest (bfd_get (addr_bit, core_bfd, | |
1411 | descdata + kp->ki_size) / 1024)); | |
1412 | gdb_printf ("Data size: %s pages\n", | |
1413 | pulongest (bfd_get (addr_bit, core_bfd, | |
1414 | descdata + kp->ki_dsize))); | |
1415 | gdb_printf ("Stack size: %s pages\n", | |
1416 | pulongest (bfd_get (addr_bit, core_bfd, | |
1417 | descdata + kp->ki_ssize))); | |
1418 | gdb_printf ("Text size: %s pages\n", | |
1419 | pulongest (bfd_get (addr_bit, core_bfd, | |
1420 | descdata + kp->ki_tsize))); | |
1421 | gdb_printf ("Resident set size: %s pages\n", | |
1422 | pulongest (bfd_get (addr_bit, core_bfd, | |
1423 | descdata + kp->ki_rssize))); | |
1424 | gdb_printf ("Maximum RSS: %s pages\n", | |
1425 | pulongest (bfd_get (long_bit, core_bfd, | |
1426 | descdata + kp->ki_rusage | |
1427 | + kp->ru_maxrss))); | |
d2176225 JB |
1428 | fbsd_print_sigset ("Ignored Signals", descdata + kp->ki_sigignore); |
1429 | fbsd_print_sigset ("Caught Signals", descdata + kp->ki_sigcatch); | |
1430 | } | |
1431 | ||
1432 | /* Implement the "core_info_proc" gdbarch method. */ | |
1433 | ||
1434 | static void | |
1435 | fbsd_core_info_proc (struct gdbarch *gdbarch, const char *args, | |
1436 | enum info_proc_what what) | |
1437 | { | |
1438 | bool do_cmdline = false; | |
1439 | bool do_cwd = false; | |
1440 | bool do_exe = false; | |
57c2a98a | 1441 | bool do_files = false; |
d2176225 JB |
1442 | bool do_mappings = false; |
1443 | bool do_status = false; | |
1444 | int pid; | |
1445 | ||
1446 | switch (what) | |
1447 | { | |
1448 | case IP_MINIMAL: | |
1449 | do_cmdline = true; | |
1450 | do_cwd = true; | |
1451 | do_exe = true; | |
1452 | break; | |
1453 | case IP_MAPPINGS: | |
1454 | do_mappings = true; | |
1455 | break; | |
1456 | case IP_STATUS: | |
1457 | case IP_STAT: | |
1458 | do_status = true; | |
1459 | break; | |
1460 | case IP_CMDLINE: | |
1461 | do_cmdline = true; | |
1462 | break; | |
1463 | case IP_EXE: | |
1464 | do_exe = true; | |
1465 | break; | |
1466 | case IP_CWD: | |
1467 | do_cwd = true; | |
1468 | break; | |
57c2a98a JB |
1469 | case IP_FILES: |
1470 | do_files = true; | |
1471 | break; | |
d2176225 JB |
1472 | case IP_ALL: |
1473 | do_cmdline = true; | |
1474 | do_cwd = true; | |
1475 | do_exe = true; | |
57c2a98a | 1476 | do_files = true; |
d2176225 JB |
1477 | do_mappings = true; |
1478 | do_status = true; | |
1479 | break; | |
1480 | default: | |
1481 | return; | |
1482 | } | |
1483 | ||
1484 | pid = bfd_core_file_pid (core_bfd); | |
1485 | if (pid != 0) | |
6cb06a8c | 1486 | gdb_printf (_("process %d\n"), pid); |
d2176225 JB |
1487 | |
1488 | if (do_cmdline) | |
1489 | { | |
1490 | const char *cmdline; | |
1491 | ||
1492 | cmdline = bfd_core_file_failing_command (core_bfd); | |
1493 | if (cmdline) | |
6cb06a8c | 1494 | gdb_printf ("cmdline = '%s'\n", cmdline); |
d2176225 JB |
1495 | else |
1496 | warning (_("Command line unavailable")); | |
1497 | } | |
1498 | if (do_cwd) | |
1499 | { | |
1500 | gdb::unique_xmalloc_ptr<char> cwd = | |
1501 | fbsd_core_vnode_path (gdbarch, KINFO_FILE_FD_TYPE_CWD); | |
1502 | if (cwd) | |
6cb06a8c | 1503 | gdb_printf ("cwd = '%s'\n", cwd.get ()); |
d2176225 JB |
1504 | else |
1505 | warning (_("unable to read current working directory")); | |
1506 | } | |
1507 | if (do_exe) | |
1508 | { | |
1509 | gdb::unique_xmalloc_ptr<char> exe = | |
1510 | fbsd_core_vnode_path (gdbarch, KINFO_FILE_FD_TYPE_TEXT); | |
1511 | if (exe) | |
6cb06a8c | 1512 | gdb_printf ("exe = '%s'\n", exe.get ()); |
d2176225 JB |
1513 | else |
1514 | warning (_("unable to read executable path name")); | |
1515 | } | |
57c2a98a JB |
1516 | if (do_files) |
1517 | fbsd_core_info_proc_files (gdbarch); | |
d2176225 JB |
1518 | if (do_mappings) |
1519 | fbsd_core_info_proc_mappings (gdbarch); | |
1520 | if (do_status) | |
1521 | fbsd_core_info_proc_status (gdbarch); | |
1522 | } | |
1523 | ||
82372b2f JB |
1524 | /* Print descriptions of FreeBSD-specific AUXV entries to FILE. */ |
1525 | ||
1526 | static void | |
1527 | fbsd_print_auxv_entry (struct gdbarch *gdbarch, struct ui_file *file, | |
1528 | CORE_ADDR type, CORE_ADDR val) | |
1529 | { | |
fd2b4de5 JB |
1530 | const char *name = "???"; |
1531 | const char *description = ""; | |
1532 | enum auxv_format format = AUXV_FORMAT_HEX; | |
82372b2f JB |
1533 | |
1534 | switch (type) | |
1535 | { | |
fd2b4de5 JB |
1536 | case AT_NULL: |
1537 | case AT_IGNORE: | |
1538 | case AT_EXECFD: | |
1539 | case AT_PHDR: | |
1540 | case AT_PHENT: | |
1541 | case AT_PHNUM: | |
1542 | case AT_PAGESZ: | |
1543 | case AT_BASE: | |
1544 | case AT_FLAGS: | |
1545 | case AT_ENTRY: | |
1546 | case AT_NOTELF: | |
1547 | case AT_UID: | |
1548 | case AT_EUID: | |
1549 | case AT_GID: | |
1550 | case AT_EGID: | |
1551 | default_print_auxv_entry (gdbarch, file, type, val); | |
1552 | return; | |
82372b2f JB |
1553 | #define _TAGNAME(tag) #tag |
1554 | #define TAGNAME(tag) _TAGNAME(AT_##tag) | |
1555 | #define TAG(tag, text, kind) \ | |
1556 | case AT_FREEBSD_##tag: name = TAGNAME(tag); description = text; format = kind; break | |
1557 | TAG (EXECPATH, _("Executable path"), AUXV_FORMAT_STR); | |
1558 | TAG (CANARY, _("Canary for SSP"), AUXV_FORMAT_HEX); | |
1559 | TAG (CANARYLEN, ("Length of the SSP canary"), AUXV_FORMAT_DEC); | |
1560 | TAG (OSRELDATE, _("OSRELDATE"), AUXV_FORMAT_DEC); | |
1561 | TAG (NCPUS, _("Number of CPUs"), AUXV_FORMAT_DEC); | |
1562 | TAG (PAGESIZES, _("Pagesizes"), AUXV_FORMAT_HEX); | |
1563 | TAG (PAGESIZESLEN, _("Number of pagesizes"), AUXV_FORMAT_DEC); | |
1564 | TAG (TIMEKEEP, _("Pointer to timehands"), AUXV_FORMAT_HEX); | |
1565 | TAG (STACKPROT, _("Initial stack protection"), AUXV_FORMAT_HEX); | |
12c4bd7f JB |
1566 | TAG (EHDRFLAGS, _("ELF header e_flags"), AUXV_FORMAT_HEX); |
1567 | TAG (HWCAP, _("Machine-dependent CPU capability hints"), AUXV_FORMAT_HEX); | |
d7ded98f | 1568 | TAG (HWCAP2, _("Extension of AT_HWCAP"), AUXV_FORMAT_HEX); |
a879b4d5 | 1569 | TAG (BSDFLAGS, _("ELF BSD flags"), AUXV_FORMAT_HEX); |
fc238d4a JB |
1570 | TAG (ARGC, _("Argument count"), AUXV_FORMAT_DEC); |
1571 | TAG (ARGV, _("Argument vector"), AUXV_FORMAT_HEX); | |
1572 | TAG (ENVC, _("Environment count"), AUXV_FORMAT_DEC); | |
1573 | TAG (ENVV, _("Environment vector"), AUXV_FORMAT_HEX); | |
1574 | TAG (PS_STRINGS, _("Pointer to ps_strings"), AUXV_FORMAT_HEX); | |
b4992e99 JB |
1575 | TAG (FXRNG, _("Pointer to root RNG seed version"), AUXV_FORMAT_HEX); |
1576 | TAG (KPRELOAD, _("Base address of vDSO"), AUXV_FORMAT_HEX); | |
82372b2f JB |
1577 | } |
1578 | ||
1579 | fprint_auxv_entry (file, name, description, format, type, val); | |
1580 | } | |
1581 | ||
762c974a JB |
1582 | /* Implement the "get_siginfo_type" gdbarch method. */ |
1583 | ||
1584 | static struct type * | |
1585 | fbsd_get_siginfo_type (struct gdbarch *gdbarch) | |
1586 | { | |
1587 | struct fbsd_gdbarch_data *fbsd_gdbarch_data; | |
1588 | struct type *int_type, *int32_type, *uint32_type, *long_type, *void_ptr_type; | |
1589 | struct type *uid_type, *pid_type; | |
1590 | struct type *sigval_type, *reason_type; | |
1591 | struct type *siginfo_type; | |
1592 | struct type *type; | |
1593 | ||
1594 | fbsd_gdbarch_data = get_fbsd_gdbarch_data (gdbarch); | |
1595 | if (fbsd_gdbarch_data->siginfo_type != NULL) | |
1596 | return fbsd_gdbarch_data->siginfo_type; | |
1597 | ||
1598 | int_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
1599 | 0, "int"); | |
1600 | int32_type = arch_integer_type (gdbarch, 32, 0, "int32_t"); | |
1601 | uint32_type = arch_integer_type (gdbarch, 32, 1, "uint32_t"); | |
1602 | long_type = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
1603 | 0, "long"); | |
1604 | void_ptr_type = lookup_pointer_type (builtin_type (gdbarch)->builtin_void); | |
1605 | ||
1606 | /* union sigval */ | |
1607 | sigval_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION); | |
d0e39ea2 | 1608 | sigval_type->set_name (xstrdup ("sigval")); |
762c974a JB |
1609 | append_composite_type_field (sigval_type, "sival_int", int_type); |
1610 | append_composite_type_field (sigval_type, "sival_ptr", void_ptr_type); | |
1611 | ||
1612 | /* __pid_t */ | |
1613 | pid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, | |
77b7c781 | 1614 | TYPE_LENGTH (int32_type) * TARGET_CHAR_BIT, "__pid_t"); |
762c974a | 1615 | TYPE_TARGET_TYPE (pid_type) = int32_type; |
8f53807e | 1616 | pid_type->set_target_is_stub (true); |
762c974a JB |
1617 | |
1618 | /* __uid_t */ | |
1619 | uid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, | |
77b7c781 UW |
1620 | TYPE_LENGTH (uint32_type) * TARGET_CHAR_BIT, |
1621 | "__uid_t"); | |
762c974a | 1622 | TYPE_TARGET_TYPE (uid_type) = uint32_type; |
8f53807e | 1623 | pid_type->set_target_is_stub (true); |
762c974a JB |
1624 | |
1625 | /* _reason */ | |
1626 | reason_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION); | |
1627 | ||
1628 | /* _fault */ | |
1629 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
1630 | append_composite_type_field (type, "si_trapno", int_type); | |
1631 | append_composite_type_field (reason_type, "_fault", type); | |
1632 | ||
1633 | /* _timer */ | |
1634 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
1635 | append_composite_type_field (type, "si_timerid", int_type); | |
1636 | append_composite_type_field (type, "si_overrun", int_type); | |
1637 | append_composite_type_field (reason_type, "_timer", type); | |
1638 | ||
1639 | /* _mesgq */ | |
1640 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
1641 | append_composite_type_field (type, "si_mqd", int_type); | |
1642 | append_composite_type_field (reason_type, "_mesgq", type); | |
1643 | ||
1644 | /* _poll */ | |
1645 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
1646 | append_composite_type_field (type, "si_band", long_type); | |
1647 | append_composite_type_field (reason_type, "_poll", type); | |
1648 | ||
1649 | /* __spare__ */ | |
1650 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
1651 | append_composite_type_field (type, "__spare1__", long_type); | |
1652 | append_composite_type_field (type, "__spare2__", | |
1653 | init_vector_type (int_type, 7)); | |
1654 | append_composite_type_field (reason_type, "__spare__", type); | |
1655 | ||
1656 | /* struct siginfo */ | |
1657 | siginfo_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
d0e39ea2 | 1658 | siginfo_type->set_name (xstrdup ("siginfo")); |
762c974a JB |
1659 | append_composite_type_field (siginfo_type, "si_signo", int_type); |
1660 | append_composite_type_field (siginfo_type, "si_errno", int_type); | |
1661 | append_composite_type_field (siginfo_type, "si_code", int_type); | |
1662 | append_composite_type_field (siginfo_type, "si_pid", pid_type); | |
1663 | append_composite_type_field (siginfo_type, "si_uid", uid_type); | |
1664 | append_composite_type_field (siginfo_type, "si_status", int_type); | |
1665 | append_composite_type_field (siginfo_type, "si_addr", void_ptr_type); | |
1666 | append_composite_type_field (siginfo_type, "si_value", sigval_type); | |
1667 | append_composite_type_field (siginfo_type, "_reason", reason_type); | |
1668 | ||
1669 | fbsd_gdbarch_data->siginfo_type = siginfo_type; | |
1670 | ||
1671 | return siginfo_type; | |
1672 | } | |
1673 | ||
e61667ef RS |
1674 | /* Implement the "gdb_signal_from_target" gdbarch method. */ |
1675 | ||
1676 | static enum gdb_signal | |
1677 | fbsd_gdb_signal_from_target (struct gdbarch *gdbarch, int signal) | |
1678 | { | |
1679 | switch (signal) | |
1680 | { | |
1681 | case 0: | |
1682 | return GDB_SIGNAL_0; | |
1683 | ||
1684 | case FREEBSD_SIGHUP: | |
1685 | return GDB_SIGNAL_HUP; | |
1686 | ||
1687 | case FREEBSD_SIGINT: | |
1688 | return GDB_SIGNAL_INT; | |
1689 | ||
1690 | case FREEBSD_SIGQUIT: | |
1691 | return GDB_SIGNAL_QUIT; | |
1692 | ||
1693 | case FREEBSD_SIGILL: | |
1694 | return GDB_SIGNAL_ILL; | |
1695 | ||
1696 | case FREEBSD_SIGTRAP: | |
1697 | return GDB_SIGNAL_TRAP; | |
1698 | ||
1699 | case FREEBSD_SIGABRT: | |
1700 | return GDB_SIGNAL_ABRT; | |
1701 | ||
1702 | case FREEBSD_SIGEMT: | |
1703 | return GDB_SIGNAL_EMT; | |
1704 | ||
1705 | case FREEBSD_SIGFPE: | |
1706 | return GDB_SIGNAL_FPE; | |
1707 | ||
1708 | case FREEBSD_SIGKILL: | |
1709 | return GDB_SIGNAL_KILL; | |
1710 | ||
1711 | case FREEBSD_SIGBUS: | |
1712 | return GDB_SIGNAL_BUS; | |
1713 | ||
1714 | case FREEBSD_SIGSEGV: | |
1715 | return GDB_SIGNAL_SEGV; | |
1716 | ||
1717 | case FREEBSD_SIGSYS: | |
1718 | return GDB_SIGNAL_SYS; | |
1719 | ||
1720 | case FREEBSD_SIGPIPE: | |
1721 | return GDB_SIGNAL_PIPE; | |
1722 | ||
1723 | case FREEBSD_SIGALRM: | |
1724 | return GDB_SIGNAL_ALRM; | |
1725 | ||
1726 | case FREEBSD_SIGTERM: | |
1727 | return GDB_SIGNAL_TERM; | |
1728 | ||
1729 | case FREEBSD_SIGURG: | |
1730 | return GDB_SIGNAL_URG; | |
1731 | ||
1732 | case FREEBSD_SIGSTOP: | |
1733 | return GDB_SIGNAL_STOP; | |
1734 | ||
1735 | case FREEBSD_SIGTSTP: | |
1736 | return GDB_SIGNAL_TSTP; | |
1737 | ||
1738 | case FREEBSD_SIGCONT: | |
1739 | return GDB_SIGNAL_CONT; | |
1740 | ||
1741 | case FREEBSD_SIGCHLD: | |
1742 | return GDB_SIGNAL_CHLD; | |
1743 | ||
1744 | case FREEBSD_SIGTTIN: | |
1745 | return GDB_SIGNAL_TTIN; | |
1746 | ||
1747 | case FREEBSD_SIGTTOU: | |
1748 | return GDB_SIGNAL_TTOU; | |
1749 | ||
1750 | case FREEBSD_SIGIO: | |
1751 | return GDB_SIGNAL_IO; | |
1752 | ||
1753 | case FREEBSD_SIGXCPU: | |
1754 | return GDB_SIGNAL_XCPU; | |
1755 | ||
1756 | case FREEBSD_SIGXFSZ: | |
1757 | return GDB_SIGNAL_XFSZ; | |
1758 | ||
1759 | case FREEBSD_SIGVTALRM: | |
1760 | return GDB_SIGNAL_VTALRM; | |
1761 | ||
1762 | case FREEBSD_SIGPROF: | |
1763 | return GDB_SIGNAL_PROF; | |
1764 | ||
1765 | case FREEBSD_SIGWINCH: | |
1766 | return GDB_SIGNAL_WINCH; | |
1767 | ||
1768 | case FREEBSD_SIGINFO: | |
1769 | return GDB_SIGNAL_INFO; | |
1770 | ||
1771 | case FREEBSD_SIGUSR1: | |
1772 | return GDB_SIGNAL_USR1; | |
1773 | ||
1774 | case FREEBSD_SIGUSR2: | |
1775 | return GDB_SIGNAL_USR2; | |
1776 | ||
1777 | /* SIGTHR is the same as SIGLWP on FreeBSD. */ | |
1778 | case FREEBSD_SIGTHR: | |
1779 | return GDB_SIGNAL_LWP; | |
1780 | ||
1781 | case FREEBSD_SIGLIBRT: | |
1782 | return GDB_SIGNAL_LIBRT; | |
1783 | } | |
1784 | ||
1785 | if (signal >= FREEBSD_SIGRTMIN && signal <= FREEBSD_SIGRTMAX) | |
1786 | { | |
1787 | int offset = signal - FREEBSD_SIGRTMIN; | |
1788 | ||
1789 | return (enum gdb_signal) ((int) GDB_SIGNAL_REALTIME_65 + offset); | |
1790 | } | |
1791 | ||
1792 | return GDB_SIGNAL_UNKNOWN; | |
1793 | } | |
1794 | ||
1795 | /* Implement the "gdb_signal_to_target" gdbarch method. */ | |
1796 | ||
1797 | static int | |
1798 | fbsd_gdb_signal_to_target (struct gdbarch *gdbarch, | |
dda83cd7 | 1799 | enum gdb_signal signal) |
e61667ef RS |
1800 | { |
1801 | switch (signal) | |
1802 | { | |
1803 | case GDB_SIGNAL_0: | |
1804 | return 0; | |
1805 | ||
1806 | case GDB_SIGNAL_HUP: | |
1807 | return FREEBSD_SIGHUP; | |
1808 | ||
1809 | case GDB_SIGNAL_INT: | |
1810 | return FREEBSD_SIGINT; | |
1811 | ||
1812 | case GDB_SIGNAL_QUIT: | |
1813 | return FREEBSD_SIGQUIT; | |
1814 | ||
1815 | case GDB_SIGNAL_ILL: | |
1816 | return FREEBSD_SIGILL; | |
1817 | ||
1818 | case GDB_SIGNAL_TRAP: | |
1819 | return FREEBSD_SIGTRAP; | |
1820 | ||
1821 | case GDB_SIGNAL_ABRT: | |
1822 | return FREEBSD_SIGABRT; | |
1823 | ||
1824 | case GDB_SIGNAL_EMT: | |
1825 | return FREEBSD_SIGEMT; | |
1826 | ||
1827 | case GDB_SIGNAL_FPE: | |
1828 | return FREEBSD_SIGFPE; | |
1829 | ||
1830 | case GDB_SIGNAL_KILL: | |
1831 | return FREEBSD_SIGKILL; | |
1832 | ||
1833 | case GDB_SIGNAL_BUS: | |
1834 | return FREEBSD_SIGBUS; | |
1835 | ||
1836 | case GDB_SIGNAL_SEGV: | |
1837 | return FREEBSD_SIGSEGV; | |
1838 | ||
1839 | case GDB_SIGNAL_SYS: | |
1840 | return FREEBSD_SIGSYS; | |
1841 | ||
1842 | case GDB_SIGNAL_PIPE: | |
1843 | return FREEBSD_SIGPIPE; | |
1844 | ||
1845 | case GDB_SIGNAL_ALRM: | |
1846 | return FREEBSD_SIGALRM; | |
1847 | ||
1848 | case GDB_SIGNAL_TERM: | |
1849 | return FREEBSD_SIGTERM; | |
1850 | ||
1851 | case GDB_SIGNAL_URG: | |
1852 | return FREEBSD_SIGURG; | |
1853 | ||
1854 | case GDB_SIGNAL_STOP: | |
1855 | return FREEBSD_SIGSTOP; | |
1856 | ||
1857 | case GDB_SIGNAL_TSTP: | |
1858 | return FREEBSD_SIGTSTP; | |
1859 | ||
1860 | case GDB_SIGNAL_CONT: | |
1861 | return FREEBSD_SIGCONT; | |
1862 | ||
1863 | case GDB_SIGNAL_CHLD: | |
1864 | return FREEBSD_SIGCHLD; | |
1865 | ||
1866 | case GDB_SIGNAL_TTIN: | |
1867 | return FREEBSD_SIGTTIN; | |
1868 | ||
1869 | case GDB_SIGNAL_TTOU: | |
1870 | return FREEBSD_SIGTTOU; | |
1871 | ||
1872 | case GDB_SIGNAL_IO: | |
1873 | return FREEBSD_SIGIO; | |
1874 | ||
1875 | case GDB_SIGNAL_XCPU: | |
1876 | return FREEBSD_SIGXCPU; | |
1877 | ||
1878 | case GDB_SIGNAL_XFSZ: | |
1879 | return FREEBSD_SIGXFSZ; | |
1880 | ||
1881 | case GDB_SIGNAL_VTALRM: | |
1882 | return FREEBSD_SIGVTALRM; | |
1883 | ||
1884 | case GDB_SIGNAL_PROF: | |
1885 | return FREEBSD_SIGPROF; | |
1886 | ||
1887 | case GDB_SIGNAL_WINCH: | |
1888 | return FREEBSD_SIGWINCH; | |
1889 | ||
1890 | case GDB_SIGNAL_INFO: | |
1891 | return FREEBSD_SIGINFO; | |
1892 | ||
1893 | case GDB_SIGNAL_USR1: | |
1894 | return FREEBSD_SIGUSR1; | |
1895 | ||
1896 | case GDB_SIGNAL_USR2: | |
1897 | return FREEBSD_SIGUSR2; | |
1898 | ||
1899 | case GDB_SIGNAL_LWP: | |
1900 | return FREEBSD_SIGTHR; | |
1901 | ||
1902 | case GDB_SIGNAL_LIBRT: | |
1903 | return FREEBSD_SIGLIBRT; | |
1904 | } | |
1905 | ||
1906 | if (signal >= GDB_SIGNAL_REALTIME_65 | |
1907 | && signal <= GDB_SIGNAL_REALTIME_126) | |
1908 | { | |
1909 | int offset = signal - GDB_SIGNAL_REALTIME_65; | |
1910 | ||
1911 | return FREEBSD_SIGRTMIN + offset; | |
1912 | } | |
1913 | ||
1914 | return -1; | |
1915 | } | |
1916 | ||
e6cdd38e JB |
1917 | /* Implement the "get_syscall_number" gdbarch method. */ |
1918 | ||
1919 | static LONGEST | |
00431a78 | 1920 | fbsd_get_syscall_number (struct gdbarch *gdbarch, thread_info *thread) |
e6cdd38e JB |
1921 | { |
1922 | ||
1923 | /* FreeBSD doesn't use gdbarch_get_syscall_number since FreeBSD | |
1924 | native targets fetch the system call number from the | |
1925 | 'pl_syscall_code' member of struct ptrace_lwpinfo in fbsd_wait. | |
1926 | However, system call catching requires this function to be | |
1927 | set. */ | |
1928 | ||
1929 | internal_error (__FILE__, __LINE__, _("fbsd_get_sycall_number called")); | |
1930 | } | |
1931 | ||
945f3901 JB |
1932 | /* Read an integer symbol value from the current target. */ |
1933 | ||
1934 | static LONGEST | |
1935 | fbsd_read_integer_by_name (struct gdbarch *gdbarch, const char *name) | |
1936 | { | |
1937 | bound_minimal_symbol ms = lookup_minimal_symbol (name, NULL, NULL); | |
1938 | if (ms.minsym == NULL) | |
1939 | error (_("Unable to resolve symbol '%s'"), name); | |
1940 | ||
1941 | gdb_byte buf[4]; | |
4aeddc50 | 1942 | if (target_read_memory (ms.value_address (), buf, sizeof buf) != 0) |
945f3901 JB |
1943 | error (_("Unable to read value of '%s'"), name); |
1944 | ||
2a50938a | 1945 | return extract_signed_integer (buf, gdbarch_byte_order (gdbarch)); |
945f3901 JB |
1946 | } |
1947 | ||
1948 | /* Lookup offsets of fields in the runtime linker's 'Obj_Entry' | |
1949 | structure needed to determine the TLS index of an object file. */ | |
1950 | ||
1951 | static void | |
1952 | fbsd_fetch_rtld_offsets (struct gdbarch *gdbarch, struct fbsd_pspace_data *data) | |
1953 | { | |
a70b8144 | 1954 | try |
945f3901 JB |
1955 | { |
1956 | /* Fetch offsets from debug symbols in rtld. */ | |
1957 | struct symbol *obj_entry_sym | |
1958 | = lookup_symbol_in_language ("Struct_Obj_Entry", NULL, STRUCT_DOMAIN, | |
1959 | language_c, NULL).symbol; | |
1960 | if (obj_entry_sym == NULL) | |
1961 | error (_("Unable to find Struct_Obj_Entry symbol")); | |
5f9c5a63 | 1962 | data->off_linkmap = lookup_struct_elt (obj_entry_sym->type (), |
945f3901 | 1963 | "linkmap", 0).offset / 8; |
5f9c5a63 | 1964 | data->off_tlsindex = lookup_struct_elt (obj_entry_sym->type (), |
945f3901 JB |
1965 | "tlsindex", 0).offset / 8; |
1966 | data->rtld_offsets_valid = true; | |
1967 | return; | |
1968 | } | |
230d2906 | 1969 | catch (const gdb_exception_error &e) |
945f3901 JB |
1970 | { |
1971 | data->off_linkmap = -1; | |
1972 | } | |
945f3901 | 1973 | |
a70b8144 | 1974 | try |
945f3901 JB |
1975 | { |
1976 | /* Fetch offsets from global variables in libthr. Note that | |
1977 | this does not work for single-threaded processes that are not | |
1978 | linked against libthr. */ | |
1979 | data->off_linkmap = fbsd_read_integer_by_name (gdbarch, | |
1980 | "_thread_off_linkmap"); | |
1981 | data->off_tlsindex = fbsd_read_integer_by_name (gdbarch, | |
1982 | "_thread_off_tlsindex"); | |
1983 | data->rtld_offsets_valid = true; | |
1984 | return; | |
1985 | } | |
230d2906 | 1986 | catch (const gdb_exception_error &e) |
945f3901 JB |
1987 | { |
1988 | data->off_linkmap = -1; | |
1989 | } | |
945f3901 JB |
1990 | } |
1991 | ||
1992 | /* Helper function to read the TLS index of an object file associated | |
1993 | with a link map entry at LM_ADDR. */ | |
1994 | ||
1995 | static LONGEST | |
1996 | fbsd_get_tls_index (struct gdbarch *gdbarch, CORE_ADDR lm_addr) | |
1997 | { | |
1998 | struct fbsd_pspace_data *data = get_fbsd_pspace_data (current_program_space); | |
1999 | ||
2000 | if (!data->rtld_offsets_valid) | |
2001 | fbsd_fetch_rtld_offsets (gdbarch, data); | |
2002 | ||
2003 | if (data->off_linkmap == -1) | |
2004 | throw_error (TLS_GENERIC_ERROR, | |
2005 | _("Cannot fetch runtime linker structure offsets")); | |
2006 | ||
2007 | /* Simulate container_of to convert from LM_ADDR to the Obj_Entry | |
2008 | pointer and then compute the offset of the tlsindex member. */ | |
2009 | CORE_ADDR tlsindex_addr = lm_addr - data->off_linkmap + data->off_tlsindex; | |
2010 | ||
2011 | gdb_byte buf[4]; | |
2012 | if (target_read_memory (tlsindex_addr, buf, sizeof buf) != 0) | |
2013 | throw_error (TLS_GENERIC_ERROR, | |
2014 | _("Cannot find thread-local variables on this target")); | |
2015 | ||
2a50938a | 2016 | return extract_signed_integer (buf, gdbarch_byte_order (gdbarch)); |
945f3901 JB |
2017 | } |
2018 | ||
2019 | /* See fbsd-tdep.h. */ | |
2020 | ||
2021 | CORE_ADDR | |
2022 | fbsd_get_thread_local_address (struct gdbarch *gdbarch, CORE_ADDR dtv_addr, | |
2023 | CORE_ADDR lm_addr, CORE_ADDR offset) | |
2024 | { | |
2025 | LONGEST tls_index = fbsd_get_tls_index (gdbarch, lm_addr); | |
2026 | ||
2027 | gdb_byte buf[gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT]; | |
2028 | if (target_read_memory (dtv_addr, buf, sizeof buf) != 0) | |
2029 | throw_error (TLS_GENERIC_ERROR, | |
2030 | _("Cannot find thread-local variables on this target")); | |
2031 | ||
2032 | const struct builtin_type *builtin = builtin_type (gdbarch); | |
2033 | CORE_ADDR addr = gdbarch_pointer_to_address (gdbarch, | |
2034 | builtin->builtin_data_ptr, buf); | |
2035 | ||
2036 | addr += (tls_index + 1) * TYPE_LENGTH (builtin->builtin_data_ptr); | |
2037 | if (target_read_memory (addr, buf, sizeof buf) != 0) | |
2038 | throw_error (TLS_GENERIC_ERROR, | |
2039 | _("Cannot find thread-local variables on this target")); | |
2040 | ||
2041 | addr = gdbarch_pointer_to_address (gdbarch, builtin->builtin_data_ptr, buf); | |
2042 | return addr + offset; | |
2043 | } | |
2044 | ||
ed810cc7 JB |
2045 | /* See fbsd-tdep.h. */ |
2046 | ||
2047 | CORE_ADDR | |
2048 | fbsd_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc) | |
2049 | { | |
2050 | struct bound_minimal_symbol msym = lookup_bound_minimal_symbol ("_rtld_bind"); | |
4aeddc50 | 2051 | if (msym.minsym != nullptr && msym.value_address () == pc) |
ed810cc7 JB |
2052 | return frame_unwind_caller_pc (get_current_frame ()); |
2053 | ||
2054 | return 0; | |
2055 | } | |
2056 | ||
83810881 JB |
2057 | /* Return description of signal code or nullptr. */ |
2058 | ||
2059 | static const char * | |
2060 | fbsd_signal_cause (enum gdb_signal siggnal, int code) | |
2061 | { | |
2062 | /* Signal-independent causes. */ | |
2063 | switch (code) | |
2064 | { | |
2065 | case FBSD_SI_USER: | |
2066 | return _("Sent by kill()"); | |
2067 | case FBSD_SI_QUEUE: | |
2068 | return _("Sent by sigqueue()"); | |
2069 | case FBSD_SI_TIMER: | |
2070 | return _("Timer expired"); | |
2071 | case FBSD_SI_ASYNCIO: | |
2072 | return _("Asynchronous I/O request completed"); | |
2073 | case FBSD_SI_MESGQ: | |
2074 | return _("Message arrived on empty message queue"); | |
2075 | case FBSD_SI_KERNEL: | |
2076 | return _("Sent by kernel"); | |
2077 | case FBSD_SI_LWP: | |
2078 | return _("Sent by thr_kill()"); | |
2079 | } | |
2080 | ||
2081 | switch (siggnal) | |
2082 | { | |
2083 | case GDB_SIGNAL_ILL: | |
2084 | switch (code) | |
2085 | { | |
2086 | case FBSD_ILL_ILLOPC: | |
2087 | return _("Illegal opcode"); | |
2088 | case FBSD_ILL_ILLOPN: | |
2089 | return _("Illegal operand"); | |
2090 | case FBSD_ILL_ILLADR: | |
2091 | return _("Illegal addressing mode"); | |
2092 | case FBSD_ILL_ILLTRP: | |
2093 | return _("Illegal trap"); | |
2094 | case FBSD_ILL_PRVOPC: | |
2095 | return _("Privileged opcode"); | |
2096 | case FBSD_ILL_PRVREG: | |
2097 | return _("Privileged register"); | |
2098 | case FBSD_ILL_COPROC: | |
2099 | return _("Coprocessor error"); | |
2100 | case FBSD_ILL_BADSTK: | |
2101 | return _("Internal stack error"); | |
2102 | } | |
2103 | break; | |
2104 | case GDB_SIGNAL_BUS: | |
2105 | switch (code) | |
2106 | { | |
2107 | case FBSD_BUS_ADRALN: | |
2108 | return _("Invalid address alignment"); | |
2109 | case FBSD_BUS_ADRERR: | |
2110 | return _("Address not present"); | |
2111 | case FBSD_BUS_OBJERR: | |
2112 | return _("Object-specific hardware error"); | |
2113 | case FBSD_BUS_OOMERR: | |
2114 | return _("Out of memory"); | |
2115 | } | |
2116 | break; | |
2117 | case GDB_SIGNAL_SEGV: | |
2118 | switch (code) | |
2119 | { | |
2120 | case FBSD_SEGV_MAPERR: | |
2121 | return _("Address not mapped to object"); | |
2122 | case FBSD_SEGV_ACCERR: | |
2123 | return _("Invalid permissions for mapped object"); | |
2124 | case FBSD_SEGV_PKUERR: | |
2125 | return _("PKU violation"); | |
2126 | } | |
2127 | break; | |
2128 | case GDB_SIGNAL_FPE: | |
2129 | switch (code) | |
2130 | { | |
2131 | case FBSD_FPE_INTOVF: | |
2132 | return _("Integer overflow"); | |
2133 | case FBSD_FPE_INTDIV: | |
2134 | return _("Integer divide by zero"); | |
2135 | case FBSD_FPE_FLTDIV: | |
2136 | return _("Floating point divide by zero"); | |
2137 | case FBSD_FPE_FLTOVF: | |
2138 | return _("Floating point overflow"); | |
2139 | case FBSD_FPE_FLTUND: | |
2140 | return _("Floating point underflow"); | |
2141 | case FBSD_FPE_FLTRES: | |
2142 | return _("Floating point inexact result"); | |
2143 | case FBSD_FPE_FLTINV: | |
2144 | return _("Invalid floating point operation"); | |
2145 | case FBSD_FPE_FLTSUB: | |
2146 | return _("Subscript out of range"); | |
2147 | } | |
2148 | break; | |
2149 | case GDB_SIGNAL_TRAP: | |
2150 | switch (code) | |
2151 | { | |
2152 | case FBSD_TRAP_BRKPT: | |
2153 | return _("Breakpoint"); | |
2154 | case FBSD_TRAP_TRACE: | |
2155 | return _("Trace trap"); | |
2156 | case FBSD_TRAP_DTRACE: | |
2157 | return _("DTrace-induced trap"); | |
2158 | case FBSD_TRAP_CAP: | |
2159 | return _("Capability violation"); | |
2160 | } | |
2161 | break; | |
2162 | case GDB_SIGNAL_CHLD: | |
2163 | switch (code) | |
2164 | { | |
2165 | case FBSD_CLD_EXITED: | |
2166 | return _("Child has exited"); | |
2167 | case FBSD_CLD_KILLED: | |
2168 | return _("Child has terminated abnormally"); | |
2169 | case FBSD_CLD_DUMPED: | |
2170 | return _("Child has dumped core"); | |
2171 | case FBSD_CLD_TRAPPED: | |
2172 | return _("Traced child has trapped"); | |
2173 | case FBSD_CLD_STOPPED: | |
2174 | return _("Child has stopped"); | |
2175 | case FBSD_CLD_CONTINUED: | |
2176 | return _("Stopped child has continued"); | |
2177 | } | |
2178 | break; | |
2179 | case GDB_SIGNAL_POLL: | |
2180 | switch (code) | |
2181 | { | |
2182 | case FBSD_POLL_IN: | |
2183 | return _("Data input available"); | |
2184 | case FBSD_POLL_OUT: | |
2185 | return _("Output buffers available"); | |
2186 | case FBSD_POLL_MSG: | |
2187 | return _("Input message available"); | |
2188 | case FBSD_POLL_ERR: | |
2189 | return _("I/O error"); | |
2190 | case FBSD_POLL_PRI: | |
2191 | return _("High priority input available"); | |
2192 | case FBSD_POLL_HUP: | |
2193 | return _("Device disconnected"); | |
2194 | } | |
2195 | break; | |
2196 | } | |
2197 | ||
2198 | return nullptr; | |
2199 | } | |
2200 | ||
2201 | /* Report additional details for a signal stop. */ | |
2202 | ||
2203 | static void | |
2204 | fbsd_report_signal_info (struct gdbarch *gdbarch, struct ui_out *uiout, | |
2205 | enum gdb_signal siggnal) | |
2206 | { | |
2207 | LONGEST code, mqd, pid, status, timerid, uid; | |
2208 | ||
2209 | try | |
2210 | { | |
2211 | code = parse_and_eval_long ("$_siginfo.si_code"); | |
2212 | pid = parse_and_eval_long ("$_siginfo.si_pid"); | |
2213 | uid = parse_and_eval_long ("$_siginfo.si_uid"); | |
2214 | status = parse_and_eval_long ("$_siginfo.si_status"); | |
2215 | timerid = parse_and_eval_long ("$_siginfo._reason._timer.si_timerid"); | |
2216 | mqd = parse_and_eval_long ("$_siginfo._reason._mesgq.si_mqd"); | |
2217 | } | |
2218 | catch (const gdb_exception_error &e) | |
2219 | { | |
2220 | return; | |
2221 | } | |
2222 | ||
2223 | const char *meaning = fbsd_signal_cause (siggnal, code); | |
2224 | if (meaning == nullptr) | |
2225 | return; | |
2226 | ||
2227 | uiout->text (".\n"); | |
2228 | uiout->field_string ("sigcode-meaning", meaning); | |
2229 | ||
2230 | switch (code) | |
2231 | { | |
2232 | case FBSD_SI_USER: | |
2233 | case FBSD_SI_QUEUE: | |
2234 | case FBSD_SI_LWP: | |
2235 | uiout->text (" from pid "); | |
2236 | uiout->field_string ("sending-pid", plongest (pid)); | |
2237 | uiout->text (" and user "); | |
2238 | uiout->field_string ("sending-uid", plongest (uid)); | |
2239 | return; | |
2240 | case FBSD_SI_TIMER: | |
2241 | uiout->text (": timerid "); | |
2242 | uiout->field_string ("timerid", plongest (timerid)); | |
2243 | return; | |
2244 | case FBSD_SI_MESGQ: | |
2245 | uiout->text (": message queue "); | |
2246 | uiout->field_string ("message-queue", plongest (mqd)); | |
2247 | return; | |
2248 | case FBSD_SI_ASYNCIO: | |
2249 | return; | |
2250 | } | |
2251 | ||
2252 | if (siggnal == GDB_SIGNAL_CHLD) | |
2253 | { | |
2254 | uiout->text (": pid "); | |
2255 | uiout->field_string ("child-pid", plongest (pid)); | |
2256 | uiout->text (", uid "); | |
2257 | uiout->field_string ("child-uid", plongest (uid)); | |
2258 | if (code == FBSD_CLD_EXITED) | |
2259 | { | |
2260 | uiout->text (", exit status "); | |
2261 | uiout->field_string ("exit-status", plongest (status)); | |
2262 | } | |
2263 | else | |
2264 | { | |
2265 | uiout->text (", signal "); | |
2266 | uiout->field_string ("signal", plongest (status)); | |
2267 | } | |
2268 | } | |
2269 | } | |
2270 | ||
c1dae0a6 JB |
2271 | /* Search a list of struct kinfo_vmmap entries in the ENTRIES buffer |
2272 | of LEN bytes to find the length of the entry starting at ADDR. | |
2273 | Returns the length of the entry or zero if no entry was found. */ | |
2274 | ||
2275 | static ULONGEST | |
2276 | fbsd_vmmap_length (struct gdbarch *gdbarch, unsigned char *entries, size_t len, | |
2277 | CORE_ADDR addr) | |
2278 | { | |
2279 | enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); | |
2280 | unsigned char *descdata = entries; | |
2281 | unsigned char *descend = descdata + len; | |
2282 | ||
2283 | /* Skip over the structure size. */ | |
2284 | descdata += 4; | |
2285 | ||
2286 | while (descdata + KVE_PATH < descend) | |
2287 | { | |
2288 | ULONGEST structsize = extract_unsigned_integer (descdata | |
2289 | + KVE_STRUCTSIZE, 4, | |
2290 | byte_order); | |
2291 | if (structsize < KVE_PATH) | |
2292 | return false; | |
2293 | ||
2294 | ULONGEST start = extract_unsigned_integer (descdata + KVE_START, 8, | |
2295 | byte_order); | |
2296 | ULONGEST end = extract_unsigned_integer (descdata + KVE_END, 8, | |
2297 | byte_order); | |
2298 | if (start == addr) | |
2299 | return end - start; | |
2300 | ||
2301 | descdata += structsize; | |
2302 | } | |
2303 | return 0; | |
2304 | } | |
2305 | ||
2306 | /* Helper for fbsd_vsyscall_range that does the real work of finding | |
2307 | the vDSO's address range. */ | |
2308 | ||
2309 | static bool | |
2310 | fbsd_vdso_range (struct gdbarch *gdbarch, struct mem_range *range) | |
2311 | { | |
2312 | struct target_ops *ops = current_inferior ()->top_target (); | |
2313 | ||
2314 | if (target_auxv_search (ops, AT_FREEBSD_KPRELOAD, &range->start) <= 0) | |
2315 | return false; | |
2316 | ||
2317 | if (!target_has_execution ()) | |
2318 | { | |
2319 | /* Search for the ending address in the NT_PROCSTAT_VMMAP note. */ | |
2320 | asection *section = bfd_get_section_by_name (core_bfd, | |
2321 | ".note.freebsdcore.vmmap"); | |
2322 | if (section == nullptr) | |
2323 | return false; | |
2324 | ||
2325 | size_t note_size = bfd_section_size (section); | |
2326 | if (note_size < 4) | |
2327 | return false; | |
2328 | ||
2329 | gdb::def_vector<unsigned char> contents (note_size); | |
2330 | if (!bfd_get_section_contents (core_bfd, section, contents.data (), | |
2331 | 0, note_size)) | |
2332 | return false; | |
2333 | ||
2334 | range->length = fbsd_vmmap_length (gdbarch, contents.data (), note_size, | |
2335 | range->start); | |
2336 | } | |
2337 | else | |
2338 | { | |
2339 | /* Fetch the list of address space entries from the running target. */ | |
2340 | gdb::optional<gdb::byte_vector> buf = | |
2341 | target_read_alloc (ops, TARGET_OBJECT_FREEBSD_VMMAP, nullptr); | |
2342 | if (!buf || buf->empty ()) | |
2343 | return false; | |
2344 | ||
2345 | range->length = fbsd_vmmap_length (gdbarch, buf->data (), buf->size (), | |
2346 | range->start); | |
2347 | } | |
2348 | return range->length != 0; | |
2349 | } | |
2350 | ||
2351 | /* Return the address range of the vDSO for the current inferior. */ | |
2352 | ||
2353 | static int | |
2354 | fbsd_vsyscall_range (struct gdbarch *gdbarch, struct mem_range *range) | |
2355 | { | |
2356 | struct fbsd_pspace_data *data = get_fbsd_pspace_data (current_program_space); | |
2357 | ||
2358 | if (data->vdso_range_p == 0) | |
2359 | { | |
2360 | if (fbsd_vdso_range (gdbarch, &data->vdso_range)) | |
2361 | data->vdso_range_p = 1; | |
2362 | else | |
2363 | data->vdso_range_p = -1; | |
2364 | } | |
2365 | ||
2366 | if (data->vdso_range_p < 0) | |
2367 | return 0; | |
2368 | ||
2369 | *range = data->vdso_range; | |
2370 | return 1; | |
2371 | } | |
2372 | ||
1736a7bd | 2373 | /* To be called from GDB_OSABI_FREEBSD handlers. */ |
a904c024 AA |
2374 | |
2375 | void | |
2376 | fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) | |
2377 | { | |
79117428 JB |
2378 | set_gdbarch_core_pid_to_str (gdbarch, fbsd_core_pid_to_str); |
2379 | set_gdbarch_core_thread_name (gdbarch, fbsd_core_thread_name); | |
4b654465 | 2380 | set_gdbarch_core_xfer_siginfo (gdbarch, fbsd_core_xfer_siginfo); |
a904c024 | 2381 | set_gdbarch_make_corefile_notes (gdbarch, fbsd_make_corefile_notes); |
d2176225 | 2382 | set_gdbarch_core_info_proc (gdbarch, fbsd_core_info_proc); |
82372b2f | 2383 | set_gdbarch_print_auxv_entry (gdbarch, fbsd_print_auxv_entry); |
762c974a | 2384 | set_gdbarch_get_siginfo_type (gdbarch, fbsd_get_siginfo_type); |
e61667ef RS |
2385 | set_gdbarch_gdb_signal_from_target (gdbarch, fbsd_gdb_signal_from_target); |
2386 | set_gdbarch_gdb_signal_to_target (gdbarch, fbsd_gdb_signal_to_target); | |
83810881 | 2387 | set_gdbarch_report_signal_info (gdbarch, fbsd_report_signal_info); |
ed810cc7 | 2388 | set_gdbarch_skip_solib_resolver (gdbarch, fbsd_skip_solib_resolver); |
c1dae0a6 | 2389 | set_gdbarch_vsyscall_range (gdbarch, fbsd_vsyscall_range); |
e6cdd38e JB |
2390 | |
2391 | /* `catch syscall' */ | |
2392 | set_xml_syscall_file_name (gdbarch, "syscalls/freebsd.xml"); | |
2393 | set_gdbarch_get_syscall_number (gdbarch, fbsd_get_syscall_number); | |
a904c024 | 2394 | } |
762c974a | 2395 | |
6c265988 | 2396 | void _initialize_fbsd_tdep (); |
762c974a | 2397 | void |
6c265988 | 2398 | _initialize_fbsd_tdep () |
762c974a JB |
2399 | { |
2400 | fbsd_gdbarch_data_handle = | |
2401 | gdbarch_data_register_post_init (init_fbsd_gdbarch_data); | |
2402 | } |