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a904c024 AA |
1 | /* Target-dependent code for FreeBSD, architecture-independent. |
2 | ||
3666a048 | 3 | Copyright (C) 2002-2021 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; | |
945f3901 JB |
513 | }; |
514 | ||
d4e05d2f TT |
515 | /* Per-program-space data for FreeBSD architectures. */ |
516 | static const struct program_space_key<fbsd_pspace_data> | |
517 | fbsd_pspace_data_handle; | |
518 | ||
945f3901 JB |
519 | static struct fbsd_pspace_data * |
520 | get_fbsd_pspace_data (struct program_space *pspace) | |
521 | { | |
522 | struct fbsd_pspace_data *data; | |
523 | ||
d4e05d2f | 524 | data = fbsd_pspace_data_handle.get (pspace); |
945f3901 | 525 | if (data == NULL) |
d4e05d2f | 526 | data = fbsd_pspace_data_handle.emplace (pspace); |
945f3901 JB |
527 | |
528 | return data; | |
529 | } | |
530 | ||
79117428 JB |
531 | /* This is how we want PTIDs from core files to be printed. */ |
532 | ||
a068643d | 533 | static std::string |
79117428 JB |
534 | fbsd_core_pid_to_str (struct gdbarch *gdbarch, ptid_t ptid) |
535 | { | |
e38504b3 | 536 | if (ptid.lwp () != 0) |
a068643d | 537 | return string_printf ("LWP %ld", ptid.lwp ()); |
79117428 JB |
538 | |
539 | return normal_pid_to_str (ptid); | |
540 | } | |
541 | ||
542 | /* Extract the name assigned to a thread from a core. Returns the | |
543 | string in a static buffer. */ | |
544 | ||
545 | static const char * | |
546 | fbsd_core_thread_name (struct gdbarch *gdbarch, struct thread_info *thr) | |
547 | { | |
548 | static char buf[80]; | |
549 | struct bfd_section *section; | |
550 | bfd_size_type size; | |
79117428 | 551 | |
e38504b3 | 552 | if (thr->ptid.lwp () != 0) |
79117428 JB |
553 | { |
554 | /* FreeBSD includes a NT_FREEBSD_THRMISC note for each thread | |
555 | whose contents are defined by a "struct thrmisc" declared in | |
556 | <sys/procfs.h> on FreeBSD. The per-thread name is stored as | |
557 | a null-terminated string as the first member of the | |
558 | structure. Rather than define the full structure here, just | |
559 | extract the null-terminated name from the start of the | |
560 | note. */ | |
2af9fc44 JB |
561 | thread_section_name section_name (".thrmisc", thr->ptid); |
562 | ||
563 | section = bfd_get_section_by_name (core_bfd, section_name.c_str ()); | |
fd361982 | 564 | if (section != NULL && bfd_section_size (section) > 0) |
79117428 JB |
565 | { |
566 | /* Truncate the name if it is longer than "buf". */ | |
fd361982 | 567 | size = bfd_section_size (section); |
79117428 JB |
568 | if (size > sizeof buf - 1) |
569 | size = sizeof buf - 1; | |
570 | if (bfd_get_section_contents (core_bfd, section, buf, (file_ptr) 0, | |
571 | size) | |
572 | && buf[0] != '\0') | |
573 | { | |
574 | buf[size] = '\0'; | |
575 | ||
576 | /* Note that each thread will report the process command | |
577 | as its thread name instead of an empty name if a name | |
578 | has not been set explicitly. Return a NULL name in | |
579 | that case. */ | |
580 | if (strcmp (buf, elf_tdata (core_bfd)->core->program) != 0) | |
581 | return buf; | |
582 | } | |
583 | } | |
584 | } | |
585 | ||
586 | return NULL; | |
587 | } | |
588 | ||
4b654465 JB |
589 | /* Implement the "core_xfer_siginfo" gdbarch method. */ |
590 | ||
591 | static LONGEST | |
592 | fbsd_core_xfer_siginfo (struct gdbarch *gdbarch, gdb_byte *readbuf, | |
593 | ULONGEST offset, ULONGEST len) | |
594 | { | |
595 | size_t siginfo_size; | |
596 | ||
a181c0bf | 597 | if (gdbarch_long_bit (gdbarch) == 32) |
4b654465 JB |
598 | siginfo_size = SIZE32_SIGINFO_T; |
599 | else | |
600 | siginfo_size = SIZE64_SIGINFO_T; | |
601 | if (offset > siginfo_size) | |
602 | return -1; | |
603 | ||
604 | thread_section_name section_name (".note.freebsdcore.lwpinfo", inferior_ptid); | |
605 | asection *section = bfd_get_section_by_name (core_bfd, section_name.c_str ()); | |
606 | if (section == NULL) | |
607 | return -1; | |
608 | ||
609 | gdb_byte buf[4]; | |
610 | if (!bfd_get_section_contents (core_bfd, section, buf, | |
611 | LWPINFO_OFFSET + LWPINFO_PL_FLAGS, 4)) | |
612 | return -1; | |
613 | ||
614 | int pl_flags = extract_signed_integer (buf, 4, gdbarch_byte_order (gdbarch)); | |
615 | if (!(pl_flags & PL_FLAG_SI)) | |
616 | return -1; | |
617 | ||
618 | if (offset + len > siginfo_size) | |
619 | len = siginfo_size - offset; | |
620 | ||
621 | ULONGEST siginfo_offset; | |
a181c0bf | 622 | if (gdbarch_long_bit (gdbarch) == 32) |
4b654465 JB |
623 | siginfo_offset = LWPINFO_OFFSET + LWPINFO32_PL_SIGINFO; |
624 | else | |
625 | siginfo_offset = LWPINFO_OFFSET + LWPINFO64_PL_SIGINFO; | |
626 | ||
627 | if (!bfd_get_section_contents (core_bfd, section, readbuf, | |
628 | siginfo_offset + offset, len)) | |
629 | return -1; | |
630 | ||
631 | return len; | |
632 | } | |
633 | ||
a904c024 AA |
634 | static int |
635 | find_signalled_thread (struct thread_info *info, void *data) | |
636 | { | |
637 | if (info->suspend.stop_signal != GDB_SIGNAL_0 | |
e99b03dc | 638 | && info->ptid.pid () == inferior_ptid.pid ()) |
a904c024 AA |
639 | return 1; |
640 | ||
641 | return 0; | |
642 | } | |
643 | ||
739ab2e9 SS |
644 | /* Return a byte_vector containing the contents of a core dump note |
645 | for the target object of type OBJECT. If STRUCTSIZE is non-zero, | |
646 | the data is prefixed with a 32-bit integer size to match the format | |
647 | used in FreeBSD NT_PROCSTAT_* notes. */ | |
648 | ||
649 | static gdb::optional<gdb::byte_vector> | |
650 | fbsd_make_note_desc (enum target_object object, uint32_t structsize) | |
651 | { | |
652 | gdb::optional<gdb::byte_vector> buf = | |
328d42d8 | 653 | target_read_alloc (current_inferior ()->top_target (), object, NULL); |
739ab2e9 SS |
654 | if (!buf || buf->empty ()) |
655 | return {}; | |
656 | ||
657 | if (structsize == 0) | |
658 | return buf; | |
659 | ||
660 | gdb::byte_vector desc (sizeof (structsize) + buf->size ()); | |
661 | memcpy (desc.data (), &structsize, sizeof (structsize)); | |
662 | memcpy (desc.data () + sizeof (structsize), buf->data (), buf->size ()); | |
663 | return desc; | |
664 | } | |
665 | ||
a904c024 AA |
666 | /* Create appropriate note sections for a corefile, returning them in |
667 | allocated memory. */ | |
668 | ||
c21f37a8 | 669 | static gdb::unique_xmalloc_ptr<char> |
a904c024 AA |
670 | fbsd_make_corefile_notes (struct gdbarch *gdbarch, bfd *obfd, int *note_size) |
671 | { | |
c21f37a8 | 672 | gdb::unique_xmalloc_ptr<char> note_data; |
a904c024 | 673 | Elf_Internal_Ehdr *i_ehdrp; |
08036331 | 674 | struct thread_info *curr_thr, *signalled_thr; |
a904c024 AA |
675 | |
676 | /* Put a "FreeBSD" label in the ELF header. */ | |
677 | i_ehdrp = elf_elfheader (obfd); | |
678 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_FREEBSD; | |
679 | ||
680 | gdb_assert (gdbarch_iterate_over_regset_sections_p (gdbarch)); | |
681 | ||
a904c024 AA |
682 | if (get_exec_file (0)) |
683 | { | |
684 | const char *fname = lbasename (get_exec_file (0)); | |
0afbabf0 | 685 | std::string psargs = fname; |
a904c024 | 686 | |
0afbabf0 JB |
687 | const char *infargs = get_inferior_args (); |
688 | if (infargs != NULL) | |
689 | psargs = psargs + " " + infargs; | |
a904c024 | 690 | |
c21f37a8 SM |
691 | note_data.reset (elfcore_write_prpsinfo (obfd, note_data.release (), |
692 | note_size, fname, | |
693 | psargs.c_str ())); | |
a904c024 AA |
694 | } |
695 | ||
20a0aab3 | 696 | /* Thread register information. */ |
a70b8144 | 697 | try |
20a0aab3 JB |
698 | { |
699 | update_thread_list (); | |
700 | } | |
230d2906 | 701 | catch (const gdb_exception_error &e) |
20a0aab3 JB |
702 | { |
703 | exception_print (gdb_stderr, e); | |
704 | } | |
20a0aab3 JB |
705 | |
706 | /* Like the kernel, prefer dumping the signalled thread first. | |
707 | "First thread" is what tools use to infer the signalled thread. | |
708 | In case there's more than one signalled thread, prefer the | |
709 | current thread, if it is signalled. */ | |
710 | curr_thr = inferior_thread (); | |
711 | if (curr_thr->suspend.stop_signal != GDB_SIGNAL_0) | |
712 | signalled_thr = curr_thr; | |
713 | else | |
714 | { | |
715 | signalled_thr = iterate_over_threads (find_signalled_thread, NULL); | |
716 | if (signalled_thr == NULL) | |
717 | signalled_thr = curr_thr; | |
718 | } | |
719 | ||
f3a5df7b AB |
720 | enum gdb_signal stop_signal = signalled_thr->suspend.stop_signal; |
721 | gcore_elf_build_thread_register_notes (gdbarch, signalled_thr, stop_signal, | |
722 | obfd, ¬e_data, note_size); | |
08036331 | 723 | for (thread_info *thr : current_inferior ()->non_exited_threads ()) |
20a0aab3 JB |
724 | { |
725 | if (thr == signalled_thr) | |
726 | continue; | |
20a0aab3 | 727 | |
f3a5df7b AB |
728 | gcore_elf_build_thread_register_notes (gdbarch, thr, stop_signal, |
729 | obfd, ¬e_data, note_size); | |
20a0aab3 JB |
730 | } |
731 | ||
739ab2e9 SS |
732 | /* Auxiliary vector. */ |
733 | uint32_t structsize = gdbarch_ptr_bit (gdbarch) / 4; /* Elf_Auxinfo */ | |
734 | gdb::optional<gdb::byte_vector> note_desc = | |
735 | fbsd_make_note_desc (TARGET_OBJECT_AUXV, structsize); | |
736 | if (note_desc && !note_desc->empty ()) | |
737 | { | |
c21f37a8 SM |
738 | note_data.reset (elfcore_write_note (obfd, note_data.release (), |
739 | note_size, "FreeBSD", | |
740 | NT_FREEBSD_PROCSTAT_AUXV, | |
741 | note_desc->data (), | |
742 | note_desc->size ())); | |
739ab2e9 SS |
743 | if (!note_data) |
744 | return NULL; | |
745 | } | |
746 | ||
747 | /* Virtual memory mappings. */ | |
748 | note_desc = fbsd_make_note_desc (TARGET_OBJECT_FREEBSD_VMMAP, 0); | |
749 | if (note_desc && !note_desc->empty ()) | |
750 | { | |
c21f37a8 SM |
751 | note_data.reset (elfcore_write_note (obfd, note_data.release (), |
752 | note_size, "FreeBSD", | |
753 | NT_FREEBSD_PROCSTAT_VMMAP, | |
754 | note_desc->data (), | |
755 | note_desc->size ())); | |
739ab2e9 SS |
756 | if (!note_data) |
757 | return NULL; | |
758 | } | |
759 | ||
760 | note_desc = fbsd_make_note_desc (TARGET_OBJECT_FREEBSD_PS_STRINGS, 0); | |
761 | if (note_desc && !note_desc->empty ()) | |
762 | { | |
c21f37a8 SM |
763 | note_data.reset (elfcore_write_note (obfd, note_data.release (), |
764 | note_size, "FreeBSD", | |
765 | NT_FREEBSD_PROCSTAT_PSSTRINGS, | |
766 | note_desc->data (), | |
767 | note_desc->size ())); | |
739ab2e9 SS |
768 | if (!note_data) |
769 | return NULL; | |
770 | } | |
771 | ||
95ce627a AB |
772 | /* Include the target description when possible. */ |
773 | gcore_elf_make_tdesc_note (obfd, ¬e_data, note_size); | |
774 | ||
a904c024 AA |
775 | return note_data; |
776 | } | |
777 | ||
57c2a98a JB |
778 | /* Helper function to generate the file descriptor description for a |
779 | single open file in 'info proc files'. */ | |
780 | ||
781 | static const char * | |
782 | fbsd_file_fd (int kf_fd) | |
783 | { | |
784 | switch (kf_fd) | |
785 | { | |
786 | case KINFO_FILE_FD_TYPE_CWD: | |
787 | return "cwd"; | |
788 | case KINFO_FILE_FD_TYPE_ROOT: | |
789 | return "root"; | |
790 | case KINFO_FILE_FD_TYPE_JAIL: | |
791 | return "jail"; | |
792 | case KINFO_FILE_FD_TYPE_TRACE: | |
793 | return "trace"; | |
794 | case KINFO_FILE_FD_TYPE_TEXT: | |
795 | return "text"; | |
796 | case KINFO_FILE_FD_TYPE_CTTY: | |
797 | return "ctty"; | |
798 | default: | |
799 | return int_string (kf_fd, 10, 1, 0, 0); | |
800 | } | |
801 | } | |
802 | ||
803 | /* Helper function to generate the file type for a single open file in | |
804 | 'info proc files'. */ | |
805 | ||
806 | static const char * | |
807 | fbsd_file_type (int kf_type, int kf_vnode_type) | |
808 | { | |
809 | switch (kf_type) | |
810 | { | |
811 | case KINFO_FILE_TYPE_VNODE: | |
812 | switch (kf_vnode_type) | |
813 | { | |
814 | case KINFO_FILE_VTYPE_VREG: | |
815 | return "file"; | |
816 | case KINFO_FILE_VTYPE_VDIR: | |
817 | return "dir"; | |
818 | case KINFO_FILE_VTYPE_VCHR: | |
819 | return "chr"; | |
820 | case KINFO_FILE_VTYPE_VLNK: | |
821 | return "link"; | |
822 | case KINFO_FILE_VTYPE_VSOCK: | |
823 | return "socket"; | |
824 | case KINFO_FILE_VTYPE_VFIFO: | |
825 | return "fifo"; | |
826 | default: | |
827 | { | |
828 | char *str = get_print_cell (); | |
829 | ||
830 | xsnprintf (str, PRINT_CELL_SIZE, "vn:%d", kf_vnode_type); | |
831 | return str; | |
832 | } | |
833 | } | |
834 | case KINFO_FILE_TYPE_SOCKET: | |
835 | return "socket"; | |
836 | case KINFO_FILE_TYPE_PIPE: | |
837 | return "pipe"; | |
838 | case KINFO_FILE_TYPE_FIFO: | |
839 | return "fifo"; | |
840 | case KINFO_FILE_TYPE_KQUEUE: | |
841 | return "kqueue"; | |
842 | case KINFO_FILE_TYPE_CRYPTO: | |
843 | return "crypto"; | |
844 | case KINFO_FILE_TYPE_MQUEUE: | |
845 | return "mqueue"; | |
846 | case KINFO_FILE_TYPE_SHM: | |
847 | return "shm"; | |
848 | case KINFO_FILE_TYPE_SEM: | |
849 | return "sem"; | |
850 | case KINFO_FILE_TYPE_PTS: | |
851 | return "pts"; | |
852 | case KINFO_FILE_TYPE_PROCDESC: | |
853 | return "proc"; | |
854 | default: | |
855 | return int_string (kf_type, 10, 1, 0, 0); | |
856 | } | |
857 | } | |
858 | ||
859 | /* Helper function to generate the file flags for a single open file in | |
860 | 'info proc files'. */ | |
861 | ||
862 | static const char * | |
863 | fbsd_file_flags (int kf_flags) | |
864 | { | |
865 | static char file_flags[10]; | |
866 | ||
867 | file_flags[0] = (kf_flags & KINFO_FILE_FLAG_READ) ? 'r' : '-'; | |
868 | file_flags[1] = (kf_flags & KINFO_FILE_FLAG_WRITE) ? 'w' : '-'; | |
869 | file_flags[2] = (kf_flags & KINFO_FILE_FLAG_EXEC) ? 'x' : '-'; | |
870 | file_flags[3] = (kf_flags & KINFO_FILE_FLAG_APPEND) ? 'a' : '-'; | |
871 | file_flags[4] = (kf_flags & KINFO_FILE_FLAG_ASYNC) ? 's' : '-'; | |
872 | file_flags[5] = (kf_flags & KINFO_FILE_FLAG_FSYNC) ? 'f' : '-'; | |
873 | file_flags[6] = (kf_flags & KINFO_FILE_FLAG_NONBLOCK) ? 'n' : '-'; | |
874 | file_flags[7] = (kf_flags & KINFO_FILE_FLAG_DIRECT) ? 'd' : '-'; | |
875 | file_flags[8] = (kf_flags & KINFO_FILE_FLAG_HASLOCK) ? 'l' : '-'; | |
876 | file_flags[9] = '\0'; | |
877 | ||
878 | return file_flags; | |
879 | } | |
880 | ||
881 | /* Helper function to generate the name of an IP protocol. */ | |
882 | ||
883 | static const char * | |
884 | fbsd_ipproto (int protocol) | |
885 | { | |
886 | switch (protocol) | |
887 | { | |
888 | case FBSD_IPPROTO_ICMP: | |
889 | return "icmp"; | |
890 | case FBSD_IPPROTO_TCP: | |
891 | return "tcp"; | |
892 | case FBSD_IPPROTO_UDP: | |
893 | return "udp"; | |
894 | case FBSD_IPPROTO_SCTP: | |
895 | return "sctp"; | |
896 | default: | |
897 | { | |
898 | char *str = get_print_cell (); | |
899 | ||
900 | xsnprintf (str, PRINT_CELL_SIZE, "ip<%d>", protocol); | |
901 | return str; | |
902 | } | |
903 | } | |
904 | } | |
905 | ||
906 | /* Helper function to print out an IPv4 socket address. */ | |
907 | ||
908 | static void | |
909 | fbsd_print_sockaddr_in (const void *sockaddr) | |
910 | { | |
911 | const struct fbsd_sockaddr_in *sin = | |
912 | reinterpret_cast<const struct fbsd_sockaddr_in *> (sockaddr); | |
913 | char buf[INET_ADDRSTRLEN]; | |
914 | ||
07147793 | 915 | if (inet_ntop (AF_INET, sin->sin_addr, buf, sizeof buf) == nullptr) |
57c2a98a JB |
916 | error (_("Failed to format IPv4 address")); |
917 | printf_filtered ("%s:%u", buf, | |
918 | (sin->sin_port[0] << 8) | sin->sin_port[1]); | |
919 | } | |
920 | ||
921 | /* Helper function to print out an IPv6 socket address. */ | |
922 | ||
923 | static void | |
924 | fbsd_print_sockaddr_in6 (const void *sockaddr) | |
925 | { | |
926 | const struct fbsd_sockaddr_in6 *sin6 = | |
927 | reinterpret_cast<const struct fbsd_sockaddr_in6 *> (sockaddr); | |
928 | char buf[INET6_ADDRSTRLEN]; | |
929 | ||
07147793 | 930 | if (inet_ntop (AF_INET6, sin6->sin6_addr, buf, sizeof buf) == nullptr) |
57c2a98a JB |
931 | error (_("Failed to format IPv6 address")); |
932 | printf_filtered ("%s.%u", buf, | |
933 | (sin6->sin6_port[0] << 8) | sin6->sin6_port[1]); | |
934 | } | |
935 | ||
936 | /* See fbsd-tdep.h. */ | |
937 | ||
938 | void | |
939 | fbsd_info_proc_files_header () | |
940 | { | |
941 | printf_filtered (_("Open files:\n\n")); | |
942 | printf_filtered (" %6s %6s %10s %9s %s\n", | |
943 | "FD", "Type", "Offset", "Flags ", "Name"); | |
944 | } | |
945 | ||
946 | /* See fbsd-tdep.h. */ | |
947 | ||
948 | void | |
949 | fbsd_info_proc_files_entry (int kf_type, int kf_fd, int kf_flags, | |
950 | LONGEST kf_offset, int kf_vnode_type, | |
951 | int kf_sock_domain, int kf_sock_type, | |
952 | int kf_sock_protocol, const void *kf_sa_local, | |
953 | const void *kf_sa_peer, const void *kf_path) | |
954 | { | |
955 | printf_filtered (" %6s %6s %10s %8s ", | |
956 | fbsd_file_fd (kf_fd), | |
957 | fbsd_file_type (kf_type, kf_vnode_type), | |
958 | kf_offset > -1 ? hex_string (kf_offset) : "-", | |
959 | fbsd_file_flags (kf_flags)); | |
960 | if (kf_type == KINFO_FILE_TYPE_SOCKET) | |
961 | { | |
962 | switch (kf_sock_domain) | |
963 | { | |
964 | case FBSD_AF_UNIX: | |
965 | { | |
966 | switch (kf_sock_type) | |
967 | { | |
968 | case FBSD_SOCK_STREAM: | |
969 | printf_filtered ("unix stream:"); | |
970 | break; | |
971 | case FBSD_SOCK_DGRAM: | |
972 | printf_filtered ("unix dgram:"); | |
973 | break; | |
974 | case FBSD_SOCK_SEQPACKET: | |
975 | printf_filtered ("unix seqpacket:"); | |
976 | break; | |
977 | default: | |
978 | printf_filtered ("unix <%d>:", kf_sock_type); | |
979 | break; | |
980 | } | |
981 | ||
982 | /* For local sockets, print out the first non-nul path | |
983 | rather than both paths. */ | |
aa989b27 | 984 | const struct fbsd_sockaddr_un *saddr_un |
57c2a98a | 985 | = reinterpret_cast<const struct fbsd_sockaddr_un *> (kf_sa_local); |
aa989b27 CB |
986 | if (saddr_un->sun_path[0] == 0) |
987 | saddr_un = reinterpret_cast<const struct fbsd_sockaddr_un *> | |
57c2a98a | 988 | (kf_sa_peer); |
aa989b27 | 989 | printf_filtered ("%s", saddr_un->sun_path); |
57c2a98a JB |
990 | break; |
991 | } | |
992 | case FBSD_AF_INET: | |
993 | printf_filtered ("%s4 ", fbsd_ipproto (kf_sock_protocol)); | |
994 | fbsd_print_sockaddr_in (kf_sa_local); | |
995 | printf_filtered (" -> "); | |
996 | fbsd_print_sockaddr_in (kf_sa_peer); | |
997 | break; | |
998 | case FBSD_AF_INET6: | |
999 | printf_filtered ("%s6 ", fbsd_ipproto (kf_sock_protocol)); | |
1000 | fbsd_print_sockaddr_in6 (kf_sa_local); | |
1001 | printf_filtered (" -> "); | |
1002 | fbsd_print_sockaddr_in6 (kf_sa_peer); | |
1003 | break; | |
1004 | } | |
1005 | } | |
1006 | else | |
1007 | printf_filtered ("%s", reinterpret_cast<const char *> (kf_path)); | |
1008 | printf_filtered ("\n"); | |
1009 | } | |
1010 | ||
1011 | /* Implement "info proc files" for a corefile. */ | |
1012 | ||
1013 | static void | |
1014 | fbsd_core_info_proc_files (struct gdbarch *gdbarch) | |
1015 | { | |
1016 | asection *section | |
1017 | = bfd_get_section_by_name (core_bfd, ".note.freebsdcore.files"); | |
1018 | if (section == NULL) | |
1019 | { | |
1020 | warning (_("unable to find open files in core file")); | |
1021 | return; | |
1022 | } | |
1023 | ||
fd361982 | 1024 | size_t note_size = bfd_section_size (section); |
57c2a98a JB |
1025 | if (note_size < 4) |
1026 | error (_("malformed core note - too short for header")); | |
1027 | ||
1028 | gdb::def_vector<unsigned char> contents (note_size); | |
1029 | if (!bfd_get_section_contents (core_bfd, section, contents.data (), | |
1030 | 0, note_size)) | |
1031 | error (_("could not get core note contents")); | |
1032 | ||
1033 | unsigned char *descdata = contents.data (); | |
1034 | unsigned char *descend = descdata + note_size; | |
1035 | ||
1036 | /* Skip over the structure size. */ | |
1037 | descdata += 4; | |
1038 | ||
1039 | fbsd_info_proc_files_header (); | |
1040 | ||
1041 | while (descdata + KF_PATH < descend) | |
1042 | { | |
1043 | ULONGEST structsize = bfd_get_32 (core_bfd, descdata + KF_STRUCTSIZE); | |
1044 | if (structsize < KF_PATH) | |
1045 | error (_("malformed core note - file structure too small")); | |
1046 | ||
1047 | LONGEST type = bfd_get_signed_32 (core_bfd, descdata + KF_TYPE); | |
1048 | LONGEST fd = bfd_get_signed_32 (core_bfd, descdata + KF_FD); | |
1049 | LONGEST flags = bfd_get_signed_32 (core_bfd, descdata + KF_FLAGS); | |
1050 | LONGEST offset = bfd_get_signed_64 (core_bfd, descdata + KF_OFFSET); | |
1051 | LONGEST vnode_type = bfd_get_signed_32 (core_bfd, | |
1052 | descdata + KF_VNODE_TYPE); | |
1053 | LONGEST sock_domain = bfd_get_signed_32 (core_bfd, | |
1054 | descdata + KF_SOCK_DOMAIN); | |
1055 | LONGEST sock_type = bfd_get_signed_32 (core_bfd, descdata + KF_SOCK_TYPE); | |
1056 | LONGEST sock_protocol = bfd_get_signed_32 (core_bfd, | |
1057 | descdata + KF_SOCK_PROTOCOL); | |
1058 | fbsd_info_proc_files_entry (type, fd, flags, offset, vnode_type, | |
1059 | sock_domain, sock_type, sock_protocol, | |
1060 | descdata + KF_SA_LOCAL, descdata + KF_SA_PEER, | |
1061 | descdata + KF_PATH); | |
1062 | ||
1063 | descdata += structsize; | |
1064 | } | |
1065 | } | |
1066 | ||
d2176225 JB |
1067 | /* Helper function to generate mappings flags for a single VM map |
1068 | entry in 'info proc mappings'. */ | |
1069 | ||
6f3b1098 | 1070 | static const char * |
d2176225 JB |
1071 | fbsd_vm_map_entry_flags (int kve_flags, int kve_protection) |
1072 | { | |
1073 | static char vm_flags[9]; | |
1074 | ||
1075 | vm_flags[0] = (kve_protection & KINFO_VME_PROT_READ) ? 'r' : '-'; | |
1076 | vm_flags[1] = (kve_protection & KINFO_VME_PROT_WRITE) ? 'w' : '-'; | |
1077 | vm_flags[2] = (kve_protection & KINFO_VME_PROT_EXEC) ? 'x' : '-'; | |
1078 | vm_flags[3] = ' '; | |
1079 | vm_flags[4] = (kve_flags & KINFO_VME_FLAG_COW) ? 'C' : '-'; | |
1080 | vm_flags[5] = (kve_flags & KINFO_VME_FLAG_NEEDS_COPY) ? 'N' : '-'; | |
1081 | vm_flags[6] = (kve_flags & KINFO_VME_FLAG_SUPER) ? 'S' : '-'; | |
1082 | vm_flags[7] = (kve_flags & KINFO_VME_FLAG_GROWS_UP) ? 'U' | |
1083 | : (kve_flags & KINFO_VME_FLAG_GROWS_DOWN) ? 'D' : '-'; | |
1084 | vm_flags[8] = '\0'; | |
1085 | ||
1086 | return vm_flags; | |
1087 | } | |
1088 | ||
6f3b1098 JB |
1089 | /* See fbsd-tdep.h. */ |
1090 | ||
1091 | void | |
1092 | fbsd_info_proc_mappings_header (int addr_bit) | |
1093 | { | |
1094 | printf_filtered (_("Mapped address spaces:\n\n")); | |
1095 | if (addr_bit == 64) | |
1096 | { | |
1097 | printf_filtered (" %18s %18s %10s %10s %9s %s\n", | |
1098 | "Start Addr", | |
1099 | " End Addr", | |
1100 | " Size", " Offset", "Flags ", "File"); | |
1101 | } | |
1102 | else | |
1103 | { | |
1104 | printf_filtered ("\t%10s %10s %10s %10s %9s %s\n", | |
1105 | "Start Addr", | |
1106 | " End Addr", | |
1107 | " Size", " Offset", "Flags ", "File"); | |
1108 | } | |
1109 | } | |
1110 | ||
1111 | /* See fbsd-tdep.h. */ | |
1112 | ||
1113 | void | |
1114 | fbsd_info_proc_mappings_entry (int addr_bit, ULONGEST kve_start, | |
1115 | ULONGEST kve_end, ULONGEST kve_offset, | |
1116 | int kve_flags, int kve_protection, | |
1117 | const void *kve_path) | |
1118 | { | |
1119 | if (addr_bit == 64) | |
1120 | { | |
1121 | printf_filtered (" %18s %18s %10s %10s %9s %s\n", | |
1122 | hex_string (kve_start), | |
1123 | hex_string (kve_end), | |
1124 | hex_string (kve_end - kve_start), | |
1125 | hex_string (kve_offset), | |
1126 | fbsd_vm_map_entry_flags (kve_flags, kve_protection), | |
1127 | reinterpret_cast<const char *> (kve_path)); | |
1128 | } | |
1129 | else | |
1130 | { | |
1131 | printf_filtered ("\t%10s %10s %10s %10s %9s %s\n", | |
1132 | hex_string (kve_start), | |
1133 | hex_string (kve_end), | |
1134 | hex_string (kve_end - kve_start), | |
1135 | hex_string (kve_offset), | |
1136 | fbsd_vm_map_entry_flags (kve_flags, kve_protection), | |
1137 | reinterpret_cast<const char *> (kve_path)); | |
1138 | } | |
1139 | } | |
1140 | ||
d2176225 JB |
1141 | /* Implement "info proc mappings" for a corefile. */ |
1142 | ||
1143 | static void | |
1144 | fbsd_core_info_proc_mappings (struct gdbarch *gdbarch) | |
1145 | { | |
1146 | asection *section; | |
1147 | unsigned char *descdata, *descend; | |
1148 | size_t note_size; | |
1149 | ||
1150 | section = bfd_get_section_by_name (core_bfd, ".note.freebsdcore.vmmap"); | |
1151 | if (section == NULL) | |
1152 | { | |
1153 | warning (_("unable to find mappings in core file")); | |
1154 | return; | |
1155 | } | |
1156 | ||
fd361982 | 1157 | note_size = bfd_section_size (section); |
d2176225 JB |
1158 | if (note_size < 4) |
1159 | error (_("malformed core note - too short for header")); | |
1160 | ||
1161 | gdb::def_vector<unsigned char> contents (note_size); | |
1162 | if (!bfd_get_section_contents (core_bfd, section, contents.data (), | |
1163 | 0, note_size)) | |
1164 | error (_("could not get core note contents")); | |
1165 | ||
1166 | descdata = contents.data (); | |
1167 | descend = descdata + note_size; | |
1168 | ||
1169 | /* Skip over the structure size. */ | |
1170 | descdata += 4; | |
1171 | ||
6f3b1098 | 1172 | fbsd_info_proc_mappings_header (gdbarch_addr_bit (gdbarch)); |
d2176225 JB |
1173 | while (descdata + KVE_PATH < descend) |
1174 | { | |
6f3b1098 | 1175 | ULONGEST structsize = bfd_get_32 (core_bfd, descdata + KVE_STRUCTSIZE); |
d2176225 JB |
1176 | if (structsize < KVE_PATH) |
1177 | error (_("malformed core note - vmmap entry too small")); | |
1178 | ||
6f3b1098 JB |
1179 | ULONGEST start = bfd_get_64 (core_bfd, descdata + KVE_START); |
1180 | ULONGEST end = bfd_get_64 (core_bfd, descdata + KVE_END); | |
1181 | ULONGEST offset = bfd_get_64 (core_bfd, descdata + KVE_OFFSET); | |
1182 | LONGEST flags = bfd_get_signed_32 (core_bfd, descdata + KVE_FLAGS); | |
1183 | LONGEST prot = bfd_get_signed_32 (core_bfd, descdata + KVE_PROTECTION); | |
1184 | fbsd_info_proc_mappings_entry (gdbarch_addr_bit (gdbarch), start, end, | |
1185 | offset, flags, prot, descdata + KVE_PATH); | |
d2176225 JB |
1186 | |
1187 | descdata += structsize; | |
1188 | } | |
1189 | } | |
1190 | ||
1191 | /* Fetch the pathname of a vnode for a single file descriptor from the | |
1192 | file table core note. */ | |
1193 | ||
1194 | static gdb::unique_xmalloc_ptr<char> | |
1195 | fbsd_core_vnode_path (struct gdbarch *gdbarch, int fd) | |
1196 | { | |
1197 | asection *section; | |
1198 | unsigned char *descdata, *descend; | |
1199 | size_t note_size; | |
1200 | ||
1201 | section = bfd_get_section_by_name (core_bfd, ".note.freebsdcore.files"); | |
1202 | if (section == NULL) | |
1203 | return nullptr; | |
1204 | ||
fd361982 | 1205 | note_size = bfd_section_size (section); |
d2176225 JB |
1206 | if (note_size < 4) |
1207 | error (_("malformed core note - too short for header")); | |
1208 | ||
1209 | gdb::def_vector<unsigned char> contents (note_size); | |
1210 | if (!bfd_get_section_contents (core_bfd, section, contents.data (), | |
1211 | 0, note_size)) | |
1212 | error (_("could not get core note contents")); | |
1213 | ||
1214 | descdata = contents.data (); | |
1215 | descend = descdata + note_size; | |
1216 | ||
1217 | /* Skip over the structure size. */ | |
1218 | descdata += 4; | |
1219 | ||
9f235e09 | 1220 | while (descdata + KF_PATH < descend) |
d2176225 JB |
1221 | { |
1222 | ULONGEST structsize; | |
1223 | ||
1224 | structsize = bfd_get_32 (core_bfd, descdata + KF_STRUCTSIZE); | |
9f235e09 JB |
1225 | if (structsize < KF_PATH) |
1226 | error (_("malformed core note - file structure too small")); | |
d2176225 JB |
1227 | |
1228 | if (bfd_get_32 (core_bfd, descdata + KF_TYPE) == KINFO_FILE_TYPE_VNODE | |
1229 | && bfd_get_signed_32 (core_bfd, descdata + KF_FD) == fd) | |
1230 | { | |
1231 | char *path = (char *) descdata + KF_PATH; | |
b02f78f9 | 1232 | return make_unique_xstrdup (path); |
d2176225 JB |
1233 | } |
1234 | ||
1235 | descdata += structsize; | |
1236 | } | |
1237 | return nullptr; | |
1238 | } | |
1239 | ||
1240 | /* Helper function to read a struct timeval. */ | |
1241 | ||
1242 | static void | |
1243 | fbsd_core_fetch_timeval (struct gdbarch *gdbarch, unsigned char *data, | |
1244 | LONGEST &sec, ULONGEST &usec) | |
1245 | { | |
1246 | if (gdbarch_addr_bit (gdbarch) == 64) | |
1247 | { | |
1248 | sec = bfd_get_signed_64 (core_bfd, data); | |
1249 | usec = bfd_get_64 (core_bfd, data + 8); | |
1250 | } | |
1251 | else if (bfd_get_arch (core_bfd) == bfd_arch_i386) | |
1252 | { | |
1253 | sec = bfd_get_signed_32 (core_bfd, data); | |
1254 | usec = bfd_get_32 (core_bfd, data + 4); | |
1255 | } | |
1256 | else | |
1257 | { | |
1258 | sec = bfd_get_signed_64 (core_bfd, data); | |
1259 | usec = bfd_get_32 (core_bfd, data + 8); | |
1260 | } | |
1261 | } | |
1262 | ||
1263 | /* Print out the contents of a signal set. */ | |
1264 | ||
1265 | static void | |
1266 | fbsd_print_sigset (const char *descr, unsigned char *sigset) | |
1267 | { | |
1268 | printf_filtered ("%s: ", descr); | |
1269 | for (int i = 0; i < SIG_WORDS; i++) | |
1270 | printf_filtered ("%08x ", | |
1271 | (unsigned int) bfd_get_32 (core_bfd, sigset + i * 4)); | |
1272 | printf_filtered ("\n"); | |
1273 | } | |
1274 | ||
1275 | /* Implement "info proc status" for a corefile. */ | |
1276 | ||
1277 | static void | |
1278 | fbsd_core_info_proc_status (struct gdbarch *gdbarch) | |
1279 | { | |
1280 | const struct kinfo_proc_layout *kp; | |
1281 | asection *section; | |
d2176225 JB |
1282 | unsigned char *descdata; |
1283 | int addr_bit, long_bit; | |
1284 | size_t note_size; | |
1285 | ULONGEST value; | |
1286 | LONGEST sec; | |
1287 | ||
1288 | section = bfd_get_section_by_name (core_bfd, ".note.freebsdcore.proc"); | |
1289 | if (section == NULL) | |
1290 | { | |
1291 | warning (_("unable to find process info in core file")); | |
1292 | return; | |
1293 | } | |
1294 | ||
1295 | addr_bit = gdbarch_addr_bit (gdbarch); | |
1296 | if (addr_bit == 64) | |
1297 | kp = &kinfo_proc_layout_64; | |
1298 | else if (bfd_get_arch (core_bfd) == bfd_arch_i386) | |
1299 | kp = &kinfo_proc_layout_i386; | |
1300 | else | |
1301 | kp = &kinfo_proc_layout_32; | |
1302 | long_bit = gdbarch_long_bit (gdbarch); | |
1303 | ||
1304 | /* | |
1305 | * Ensure that the note is large enough for all of the fields fetched | |
1306 | * by this function. In particular, the note must contain the 32-bit | |
1307 | * structure size, then it must be long enough to access the last | |
1308 | * field used (ki_rusage_ch.ru_majflt) which is the size of a long. | |
1309 | */ | |
fd361982 | 1310 | note_size = bfd_section_size (section); |
d2176225 JB |
1311 | if (note_size < (4 + kp->ki_rusage_ch + kp->ru_majflt |
1312 | + long_bit / TARGET_CHAR_BIT)) | |
1313 | error (_("malformed core note - too short")); | |
1314 | ||
1315 | gdb::def_vector<unsigned char> contents (note_size); | |
1316 | if (!bfd_get_section_contents (core_bfd, section, contents.data (), | |
1317 | 0, note_size)) | |
1318 | error (_("could not get core note contents")); | |
1319 | ||
1320 | descdata = contents.data (); | |
1321 | ||
1322 | /* Skip over the structure size. */ | |
1323 | descdata += 4; | |
1324 | ||
1325 | /* Verify 'ki_layout' is 0. */ | |
1326 | if (bfd_get_32 (core_bfd, descdata + kp->ki_layout) != 0) | |
1327 | { | |
1328 | warning (_("unsupported process information in core file")); | |
1329 | return; | |
1330 | } | |
1331 | ||
1332 | printf_filtered ("Name: %.19s\n", descdata + kp->ki_comm); | |
1333 | printf_filtered ("Process ID: %s\n", | |
1334 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_pid))); | |
1335 | printf_filtered ("Parent process: %s\n", | |
1336 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_ppid))); | |
1337 | printf_filtered ("Process group: %s\n", | |
1338 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_pgid))); | |
1339 | printf_filtered ("Session id: %s\n", | |
1340 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_sid))); | |
1341 | ||
1342 | /* FreeBSD 12.0 and later store a 64-bit dev_t at 'ki_tdev'. Older | |
1343 | kernels store a 32-bit dev_t at 'ki_tdev_freebsd11'. In older | |
1344 | kernels the 64-bit 'ki_tdev' field is in a reserved section of | |
1345 | the structure that is cleared to zero. Assume that a zero value | |
1346 | in ki_tdev indicates a core dump from an older kernel and use the | |
1347 | value in 'ki_tdev_freebsd11' instead. */ | |
1348 | value = bfd_get_64 (core_bfd, descdata + kp->ki_tdev); | |
1349 | if (value == 0) | |
1350 | value = bfd_get_32 (core_bfd, descdata + kp->ki_tdev_freebsd11); | |
1351 | printf_filtered ("TTY: %s\n", pulongest (value)); | |
1352 | printf_filtered ("TTY owner process group: %s\n", | |
1353 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_tpgid))); | |
1354 | printf_filtered ("User IDs (real, effective, saved): %s %s %s\n", | |
1355 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_ruid)), | |
1356 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_uid)), | |
1357 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_svuid))); | |
1358 | printf_filtered ("Group IDs (real, effective, saved): %s %s %s\n", | |
1359 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_rgid)), | |
1360 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_groups)), | |
1361 | pulongest (bfd_get_32 (core_bfd, descdata + kp->ki_svgid))); | |
1362 | printf_filtered ("Groups: "); | |
1363 | uint16_t ngroups = bfd_get_16 (core_bfd, descdata + kp->ki_ngroups); | |
1364 | for (int i = 0; i < ngroups; i++) | |
1365 | printf_filtered ("%s ", | |
1366 | pulongest (bfd_get_32 (core_bfd, | |
1367 | descdata + kp->ki_groups + i * 4))); | |
1368 | printf_filtered ("\n"); | |
1369 | value = bfd_get (long_bit, core_bfd, | |
1370 | descdata + kp->ki_rusage + kp->ru_minflt); | |
1371 | printf_filtered ("Minor faults (no memory page): %s\n", pulongest (value)); | |
1372 | value = bfd_get (long_bit, core_bfd, | |
1373 | descdata + kp->ki_rusage_ch + kp->ru_minflt); | |
1374 | printf_filtered ("Minor faults, children: %s\n", pulongest (value)); | |
1375 | value = bfd_get (long_bit, core_bfd, | |
1376 | descdata + kp->ki_rusage + kp->ru_majflt); | |
1377 | printf_filtered ("Major faults (memory page faults): %s\n", | |
1378 | pulongest (value)); | |
1379 | value = bfd_get (long_bit, core_bfd, | |
1380 | descdata + kp->ki_rusage_ch + kp->ru_majflt); | |
1381 | printf_filtered ("Major faults, children: %s\n", pulongest (value)); | |
1382 | fbsd_core_fetch_timeval (gdbarch, | |
1383 | descdata + kp->ki_rusage + kp->ru_utime, | |
1384 | sec, value); | |
1385 | printf_filtered ("utime: %s.%06d\n", plongest (sec), (int) value); | |
1386 | fbsd_core_fetch_timeval (gdbarch, | |
1387 | descdata + kp->ki_rusage + kp->ru_stime, | |
1388 | sec, value); | |
1389 | printf_filtered ("stime: %s.%06d\n", plongest (sec), (int) value); | |
1390 | fbsd_core_fetch_timeval (gdbarch, | |
1391 | descdata + kp->ki_rusage_ch + kp->ru_utime, | |
1392 | sec, value); | |
1393 | printf_filtered ("utime, children: %s.%06d\n", plongest (sec), (int) value); | |
1394 | fbsd_core_fetch_timeval (gdbarch, | |
1395 | descdata + kp->ki_rusage_ch + kp->ru_stime, | |
1396 | sec, value); | |
1397 | printf_filtered ("stime, children: %s.%06d\n", plongest (sec), (int) value); | |
1398 | printf_filtered ("'nice' value: %d\n", | |
aac4760f | 1399 | (int) bfd_get_signed_8 (core_bfd, descdata + kp->ki_nice)); |
d2176225 JB |
1400 | fbsd_core_fetch_timeval (gdbarch, descdata + kp->ki_start, sec, value); |
1401 | printf_filtered ("Start time: %s.%06d\n", plongest (sec), (int) value); | |
1402 | printf_filtered ("Virtual memory size: %s kB\n", | |
1403 | pulongest (bfd_get (addr_bit, core_bfd, | |
1404 | descdata + kp->ki_size) / 1024)); | |
1405 | printf_filtered ("Data size: %s pages\n", | |
1406 | pulongest (bfd_get (addr_bit, core_bfd, | |
1407 | descdata + kp->ki_dsize))); | |
1408 | printf_filtered ("Stack size: %s pages\n", | |
1409 | pulongest (bfd_get (addr_bit, core_bfd, | |
1410 | descdata + kp->ki_ssize))); | |
1411 | printf_filtered ("Text size: %s pages\n", | |
1412 | pulongest (bfd_get (addr_bit, core_bfd, | |
1413 | descdata + kp->ki_tsize))); | |
1414 | printf_filtered ("Resident set size: %s pages\n", | |
1415 | pulongest (bfd_get (addr_bit, core_bfd, | |
1416 | descdata + kp->ki_rssize))); | |
1417 | printf_filtered ("Maximum RSS: %s pages\n", | |
1418 | pulongest (bfd_get (long_bit, core_bfd, | |
1419 | descdata + kp->ki_rusage | |
1420 | + kp->ru_maxrss))); | |
1421 | fbsd_print_sigset ("Ignored Signals", descdata + kp->ki_sigignore); | |
1422 | fbsd_print_sigset ("Caught Signals", descdata + kp->ki_sigcatch); | |
1423 | } | |
1424 | ||
1425 | /* Implement the "core_info_proc" gdbarch method. */ | |
1426 | ||
1427 | static void | |
1428 | fbsd_core_info_proc (struct gdbarch *gdbarch, const char *args, | |
1429 | enum info_proc_what what) | |
1430 | { | |
1431 | bool do_cmdline = false; | |
1432 | bool do_cwd = false; | |
1433 | bool do_exe = false; | |
57c2a98a | 1434 | bool do_files = false; |
d2176225 JB |
1435 | bool do_mappings = false; |
1436 | bool do_status = false; | |
1437 | int pid; | |
1438 | ||
1439 | switch (what) | |
1440 | { | |
1441 | case IP_MINIMAL: | |
1442 | do_cmdline = true; | |
1443 | do_cwd = true; | |
1444 | do_exe = true; | |
1445 | break; | |
1446 | case IP_MAPPINGS: | |
1447 | do_mappings = true; | |
1448 | break; | |
1449 | case IP_STATUS: | |
1450 | case IP_STAT: | |
1451 | do_status = true; | |
1452 | break; | |
1453 | case IP_CMDLINE: | |
1454 | do_cmdline = true; | |
1455 | break; | |
1456 | case IP_EXE: | |
1457 | do_exe = true; | |
1458 | break; | |
1459 | case IP_CWD: | |
1460 | do_cwd = true; | |
1461 | break; | |
57c2a98a JB |
1462 | case IP_FILES: |
1463 | do_files = true; | |
1464 | break; | |
d2176225 JB |
1465 | case IP_ALL: |
1466 | do_cmdline = true; | |
1467 | do_cwd = true; | |
1468 | do_exe = true; | |
57c2a98a | 1469 | do_files = true; |
d2176225 JB |
1470 | do_mappings = true; |
1471 | do_status = true; | |
1472 | break; | |
1473 | default: | |
1474 | return; | |
1475 | } | |
1476 | ||
1477 | pid = bfd_core_file_pid (core_bfd); | |
1478 | if (pid != 0) | |
1479 | printf_filtered (_("process %d\n"), pid); | |
1480 | ||
1481 | if (do_cmdline) | |
1482 | { | |
1483 | const char *cmdline; | |
1484 | ||
1485 | cmdline = bfd_core_file_failing_command (core_bfd); | |
1486 | if (cmdline) | |
1487 | printf_filtered ("cmdline = '%s'\n", cmdline); | |
1488 | else | |
1489 | warning (_("Command line unavailable")); | |
1490 | } | |
1491 | if (do_cwd) | |
1492 | { | |
1493 | gdb::unique_xmalloc_ptr<char> cwd = | |
1494 | fbsd_core_vnode_path (gdbarch, KINFO_FILE_FD_TYPE_CWD); | |
1495 | if (cwd) | |
1496 | printf_filtered ("cwd = '%s'\n", cwd.get ()); | |
1497 | else | |
1498 | warning (_("unable to read current working directory")); | |
1499 | } | |
1500 | if (do_exe) | |
1501 | { | |
1502 | gdb::unique_xmalloc_ptr<char> exe = | |
1503 | fbsd_core_vnode_path (gdbarch, KINFO_FILE_FD_TYPE_TEXT); | |
1504 | if (exe) | |
1505 | printf_filtered ("exe = '%s'\n", exe.get ()); | |
1506 | else | |
1507 | warning (_("unable to read executable path name")); | |
1508 | } | |
57c2a98a JB |
1509 | if (do_files) |
1510 | fbsd_core_info_proc_files (gdbarch); | |
d2176225 JB |
1511 | if (do_mappings) |
1512 | fbsd_core_info_proc_mappings (gdbarch); | |
1513 | if (do_status) | |
1514 | fbsd_core_info_proc_status (gdbarch); | |
1515 | } | |
1516 | ||
82372b2f JB |
1517 | /* Print descriptions of FreeBSD-specific AUXV entries to FILE. */ |
1518 | ||
1519 | static void | |
1520 | fbsd_print_auxv_entry (struct gdbarch *gdbarch, struct ui_file *file, | |
1521 | CORE_ADDR type, CORE_ADDR val) | |
1522 | { | |
fd2b4de5 JB |
1523 | const char *name = "???"; |
1524 | const char *description = ""; | |
1525 | enum auxv_format format = AUXV_FORMAT_HEX; | |
82372b2f JB |
1526 | |
1527 | switch (type) | |
1528 | { | |
fd2b4de5 JB |
1529 | case AT_NULL: |
1530 | case AT_IGNORE: | |
1531 | case AT_EXECFD: | |
1532 | case AT_PHDR: | |
1533 | case AT_PHENT: | |
1534 | case AT_PHNUM: | |
1535 | case AT_PAGESZ: | |
1536 | case AT_BASE: | |
1537 | case AT_FLAGS: | |
1538 | case AT_ENTRY: | |
1539 | case AT_NOTELF: | |
1540 | case AT_UID: | |
1541 | case AT_EUID: | |
1542 | case AT_GID: | |
1543 | case AT_EGID: | |
1544 | default_print_auxv_entry (gdbarch, file, type, val); | |
1545 | return; | |
82372b2f JB |
1546 | #define _TAGNAME(tag) #tag |
1547 | #define TAGNAME(tag) _TAGNAME(AT_##tag) | |
1548 | #define TAG(tag, text, kind) \ | |
1549 | case AT_FREEBSD_##tag: name = TAGNAME(tag); description = text; format = kind; break | |
1550 | TAG (EXECPATH, _("Executable path"), AUXV_FORMAT_STR); | |
1551 | TAG (CANARY, _("Canary for SSP"), AUXV_FORMAT_HEX); | |
1552 | TAG (CANARYLEN, ("Length of the SSP canary"), AUXV_FORMAT_DEC); | |
1553 | TAG (OSRELDATE, _("OSRELDATE"), AUXV_FORMAT_DEC); | |
1554 | TAG (NCPUS, _("Number of CPUs"), AUXV_FORMAT_DEC); | |
1555 | TAG (PAGESIZES, _("Pagesizes"), AUXV_FORMAT_HEX); | |
1556 | TAG (PAGESIZESLEN, _("Number of pagesizes"), AUXV_FORMAT_DEC); | |
1557 | TAG (TIMEKEEP, _("Pointer to timehands"), AUXV_FORMAT_HEX); | |
1558 | TAG (STACKPROT, _("Initial stack protection"), AUXV_FORMAT_HEX); | |
12c4bd7f JB |
1559 | TAG (EHDRFLAGS, _("ELF header e_flags"), AUXV_FORMAT_HEX); |
1560 | TAG (HWCAP, _("Machine-dependent CPU capability hints"), AUXV_FORMAT_HEX); | |
d7ded98f | 1561 | TAG (HWCAP2, _("Extension of AT_HWCAP"), AUXV_FORMAT_HEX); |
a879b4d5 | 1562 | TAG (BSDFLAGS, _("ELF BSD flags"), AUXV_FORMAT_HEX); |
fc238d4a JB |
1563 | TAG (ARGC, _("Argument count"), AUXV_FORMAT_DEC); |
1564 | TAG (ARGV, _("Argument vector"), AUXV_FORMAT_HEX); | |
1565 | TAG (ENVC, _("Environment count"), AUXV_FORMAT_DEC); | |
1566 | TAG (ENVV, _("Environment vector"), AUXV_FORMAT_HEX); | |
1567 | TAG (PS_STRINGS, _("Pointer to ps_strings"), AUXV_FORMAT_HEX); | |
82372b2f JB |
1568 | } |
1569 | ||
1570 | fprint_auxv_entry (file, name, description, format, type, val); | |
1571 | } | |
1572 | ||
762c974a JB |
1573 | /* Implement the "get_siginfo_type" gdbarch method. */ |
1574 | ||
1575 | static struct type * | |
1576 | fbsd_get_siginfo_type (struct gdbarch *gdbarch) | |
1577 | { | |
1578 | struct fbsd_gdbarch_data *fbsd_gdbarch_data; | |
1579 | struct type *int_type, *int32_type, *uint32_type, *long_type, *void_ptr_type; | |
1580 | struct type *uid_type, *pid_type; | |
1581 | struct type *sigval_type, *reason_type; | |
1582 | struct type *siginfo_type; | |
1583 | struct type *type; | |
1584 | ||
1585 | fbsd_gdbarch_data = get_fbsd_gdbarch_data (gdbarch); | |
1586 | if (fbsd_gdbarch_data->siginfo_type != NULL) | |
1587 | return fbsd_gdbarch_data->siginfo_type; | |
1588 | ||
1589 | int_type = arch_integer_type (gdbarch, gdbarch_int_bit (gdbarch), | |
1590 | 0, "int"); | |
1591 | int32_type = arch_integer_type (gdbarch, 32, 0, "int32_t"); | |
1592 | uint32_type = arch_integer_type (gdbarch, 32, 1, "uint32_t"); | |
1593 | long_type = arch_integer_type (gdbarch, gdbarch_long_bit (gdbarch), | |
1594 | 0, "long"); | |
1595 | void_ptr_type = lookup_pointer_type (builtin_type (gdbarch)->builtin_void); | |
1596 | ||
1597 | /* union sigval */ | |
1598 | sigval_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION); | |
d0e39ea2 | 1599 | sigval_type->set_name (xstrdup ("sigval")); |
762c974a JB |
1600 | append_composite_type_field (sigval_type, "sival_int", int_type); |
1601 | append_composite_type_field (sigval_type, "sival_ptr", void_ptr_type); | |
1602 | ||
1603 | /* __pid_t */ | |
1604 | pid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, | |
77b7c781 | 1605 | TYPE_LENGTH (int32_type) * TARGET_CHAR_BIT, "__pid_t"); |
762c974a | 1606 | TYPE_TARGET_TYPE (pid_type) = int32_type; |
8f53807e | 1607 | pid_type->set_target_is_stub (true); |
762c974a JB |
1608 | |
1609 | /* __uid_t */ | |
1610 | uid_type = arch_type (gdbarch, TYPE_CODE_TYPEDEF, | |
77b7c781 UW |
1611 | TYPE_LENGTH (uint32_type) * TARGET_CHAR_BIT, |
1612 | "__uid_t"); | |
762c974a | 1613 | TYPE_TARGET_TYPE (uid_type) = uint32_type; |
8f53807e | 1614 | pid_type->set_target_is_stub (true); |
762c974a JB |
1615 | |
1616 | /* _reason */ | |
1617 | reason_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_UNION); | |
1618 | ||
1619 | /* _fault */ | |
1620 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
1621 | append_composite_type_field (type, "si_trapno", int_type); | |
1622 | append_composite_type_field (reason_type, "_fault", type); | |
1623 | ||
1624 | /* _timer */ | |
1625 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
1626 | append_composite_type_field (type, "si_timerid", int_type); | |
1627 | append_composite_type_field (type, "si_overrun", int_type); | |
1628 | append_composite_type_field (reason_type, "_timer", type); | |
1629 | ||
1630 | /* _mesgq */ | |
1631 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
1632 | append_composite_type_field (type, "si_mqd", int_type); | |
1633 | append_composite_type_field (reason_type, "_mesgq", type); | |
1634 | ||
1635 | /* _poll */ | |
1636 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
1637 | append_composite_type_field (type, "si_band", long_type); | |
1638 | append_composite_type_field (reason_type, "_poll", type); | |
1639 | ||
1640 | /* __spare__ */ | |
1641 | type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
1642 | append_composite_type_field (type, "__spare1__", long_type); | |
1643 | append_composite_type_field (type, "__spare2__", | |
1644 | init_vector_type (int_type, 7)); | |
1645 | append_composite_type_field (reason_type, "__spare__", type); | |
1646 | ||
1647 | /* struct siginfo */ | |
1648 | siginfo_type = arch_composite_type (gdbarch, NULL, TYPE_CODE_STRUCT); | |
d0e39ea2 | 1649 | siginfo_type->set_name (xstrdup ("siginfo")); |
762c974a JB |
1650 | append_composite_type_field (siginfo_type, "si_signo", int_type); |
1651 | append_composite_type_field (siginfo_type, "si_errno", int_type); | |
1652 | append_composite_type_field (siginfo_type, "si_code", int_type); | |
1653 | append_composite_type_field (siginfo_type, "si_pid", pid_type); | |
1654 | append_composite_type_field (siginfo_type, "si_uid", uid_type); | |
1655 | append_composite_type_field (siginfo_type, "si_status", int_type); | |
1656 | append_composite_type_field (siginfo_type, "si_addr", void_ptr_type); | |
1657 | append_composite_type_field (siginfo_type, "si_value", sigval_type); | |
1658 | append_composite_type_field (siginfo_type, "_reason", reason_type); | |
1659 | ||
1660 | fbsd_gdbarch_data->siginfo_type = siginfo_type; | |
1661 | ||
1662 | return siginfo_type; | |
1663 | } | |
1664 | ||
e61667ef RS |
1665 | /* Implement the "gdb_signal_from_target" gdbarch method. */ |
1666 | ||
1667 | static enum gdb_signal | |
1668 | fbsd_gdb_signal_from_target (struct gdbarch *gdbarch, int signal) | |
1669 | { | |
1670 | switch (signal) | |
1671 | { | |
1672 | case 0: | |
1673 | return GDB_SIGNAL_0; | |
1674 | ||
1675 | case FREEBSD_SIGHUP: | |
1676 | return GDB_SIGNAL_HUP; | |
1677 | ||
1678 | case FREEBSD_SIGINT: | |
1679 | return GDB_SIGNAL_INT; | |
1680 | ||
1681 | case FREEBSD_SIGQUIT: | |
1682 | return GDB_SIGNAL_QUIT; | |
1683 | ||
1684 | case FREEBSD_SIGILL: | |
1685 | return GDB_SIGNAL_ILL; | |
1686 | ||
1687 | case FREEBSD_SIGTRAP: | |
1688 | return GDB_SIGNAL_TRAP; | |
1689 | ||
1690 | case FREEBSD_SIGABRT: | |
1691 | return GDB_SIGNAL_ABRT; | |
1692 | ||
1693 | case FREEBSD_SIGEMT: | |
1694 | return GDB_SIGNAL_EMT; | |
1695 | ||
1696 | case FREEBSD_SIGFPE: | |
1697 | return GDB_SIGNAL_FPE; | |
1698 | ||
1699 | case FREEBSD_SIGKILL: | |
1700 | return GDB_SIGNAL_KILL; | |
1701 | ||
1702 | case FREEBSD_SIGBUS: | |
1703 | return GDB_SIGNAL_BUS; | |
1704 | ||
1705 | case FREEBSD_SIGSEGV: | |
1706 | return GDB_SIGNAL_SEGV; | |
1707 | ||
1708 | case FREEBSD_SIGSYS: | |
1709 | return GDB_SIGNAL_SYS; | |
1710 | ||
1711 | case FREEBSD_SIGPIPE: | |
1712 | return GDB_SIGNAL_PIPE; | |
1713 | ||
1714 | case FREEBSD_SIGALRM: | |
1715 | return GDB_SIGNAL_ALRM; | |
1716 | ||
1717 | case FREEBSD_SIGTERM: | |
1718 | return GDB_SIGNAL_TERM; | |
1719 | ||
1720 | case FREEBSD_SIGURG: | |
1721 | return GDB_SIGNAL_URG; | |
1722 | ||
1723 | case FREEBSD_SIGSTOP: | |
1724 | return GDB_SIGNAL_STOP; | |
1725 | ||
1726 | case FREEBSD_SIGTSTP: | |
1727 | return GDB_SIGNAL_TSTP; | |
1728 | ||
1729 | case FREEBSD_SIGCONT: | |
1730 | return GDB_SIGNAL_CONT; | |
1731 | ||
1732 | case FREEBSD_SIGCHLD: | |
1733 | return GDB_SIGNAL_CHLD; | |
1734 | ||
1735 | case FREEBSD_SIGTTIN: | |
1736 | return GDB_SIGNAL_TTIN; | |
1737 | ||
1738 | case FREEBSD_SIGTTOU: | |
1739 | return GDB_SIGNAL_TTOU; | |
1740 | ||
1741 | case FREEBSD_SIGIO: | |
1742 | return GDB_SIGNAL_IO; | |
1743 | ||
1744 | case FREEBSD_SIGXCPU: | |
1745 | return GDB_SIGNAL_XCPU; | |
1746 | ||
1747 | case FREEBSD_SIGXFSZ: | |
1748 | return GDB_SIGNAL_XFSZ; | |
1749 | ||
1750 | case FREEBSD_SIGVTALRM: | |
1751 | return GDB_SIGNAL_VTALRM; | |
1752 | ||
1753 | case FREEBSD_SIGPROF: | |
1754 | return GDB_SIGNAL_PROF; | |
1755 | ||
1756 | case FREEBSD_SIGWINCH: | |
1757 | return GDB_SIGNAL_WINCH; | |
1758 | ||
1759 | case FREEBSD_SIGINFO: | |
1760 | return GDB_SIGNAL_INFO; | |
1761 | ||
1762 | case FREEBSD_SIGUSR1: | |
1763 | return GDB_SIGNAL_USR1; | |
1764 | ||
1765 | case FREEBSD_SIGUSR2: | |
1766 | return GDB_SIGNAL_USR2; | |
1767 | ||
1768 | /* SIGTHR is the same as SIGLWP on FreeBSD. */ | |
1769 | case FREEBSD_SIGTHR: | |
1770 | return GDB_SIGNAL_LWP; | |
1771 | ||
1772 | case FREEBSD_SIGLIBRT: | |
1773 | return GDB_SIGNAL_LIBRT; | |
1774 | } | |
1775 | ||
1776 | if (signal >= FREEBSD_SIGRTMIN && signal <= FREEBSD_SIGRTMAX) | |
1777 | { | |
1778 | int offset = signal - FREEBSD_SIGRTMIN; | |
1779 | ||
1780 | return (enum gdb_signal) ((int) GDB_SIGNAL_REALTIME_65 + offset); | |
1781 | } | |
1782 | ||
1783 | return GDB_SIGNAL_UNKNOWN; | |
1784 | } | |
1785 | ||
1786 | /* Implement the "gdb_signal_to_target" gdbarch method. */ | |
1787 | ||
1788 | static int | |
1789 | fbsd_gdb_signal_to_target (struct gdbarch *gdbarch, | |
dda83cd7 | 1790 | enum gdb_signal signal) |
e61667ef RS |
1791 | { |
1792 | switch (signal) | |
1793 | { | |
1794 | case GDB_SIGNAL_0: | |
1795 | return 0; | |
1796 | ||
1797 | case GDB_SIGNAL_HUP: | |
1798 | return FREEBSD_SIGHUP; | |
1799 | ||
1800 | case GDB_SIGNAL_INT: | |
1801 | return FREEBSD_SIGINT; | |
1802 | ||
1803 | case GDB_SIGNAL_QUIT: | |
1804 | return FREEBSD_SIGQUIT; | |
1805 | ||
1806 | case GDB_SIGNAL_ILL: | |
1807 | return FREEBSD_SIGILL; | |
1808 | ||
1809 | case GDB_SIGNAL_TRAP: | |
1810 | return FREEBSD_SIGTRAP; | |
1811 | ||
1812 | case GDB_SIGNAL_ABRT: | |
1813 | return FREEBSD_SIGABRT; | |
1814 | ||
1815 | case GDB_SIGNAL_EMT: | |
1816 | return FREEBSD_SIGEMT; | |
1817 | ||
1818 | case GDB_SIGNAL_FPE: | |
1819 | return FREEBSD_SIGFPE; | |
1820 | ||
1821 | case GDB_SIGNAL_KILL: | |
1822 | return FREEBSD_SIGKILL; | |
1823 | ||
1824 | case GDB_SIGNAL_BUS: | |
1825 | return FREEBSD_SIGBUS; | |
1826 | ||
1827 | case GDB_SIGNAL_SEGV: | |
1828 | return FREEBSD_SIGSEGV; | |
1829 | ||
1830 | case GDB_SIGNAL_SYS: | |
1831 | return FREEBSD_SIGSYS; | |
1832 | ||
1833 | case GDB_SIGNAL_PIPE: | |
1834 | return FREEBSD_SIGPIPE; | |
1835 | ||
1836 | case GDB_SIGNAL_ALRM: | |
1837 | return FREEBSD_SIGALRM; | |
1838 | ||
1839 | case GDB_SIGNAL_TERM: | |
1840 | return FREEBSD_SIGTERM; | |
1841 | ||
1842 | case GDB_SIGNAL_URG: | |
1843 | return FREEBSD_SIGURG; | |
1844 | ||
1845 | case GDB_SIGNAL_STOP: | |
1846 | return FREEBSD_SIGSTOP; | |
1847 | ||
1848 | case GDB_SIGNAL_TSTP: | |
1849 | return FREEBSD_SIGTSTP; | |
1850 | ||
1851 | case GDB_SIGNAL_CONT: | |
1852 | return FREEBSD_SIGCONT; | |
1853 | ||
1854 | case GDB_SIGNAL_CHLD: | |
1855 | return FREEBSD_SIGCHLD; | |
1856 | ||
1857 | case GDB_SIGNAL_TTIN: | |
1858 | return FREEBSD_SIGTTIN; | |
1859 | ||
1860 | case GDB_SIGNAL_TTOU: | |
1861 | return FREEBSD_SIGTTOU; | |
1862 | ||
1863 | case GDB_SIGNAL_IO: | |
1864 | return FREEBSD_SIGIO; | |
1865 | ||
1866 | case GDB_SIGNAL_XCPU: | |
1867 | return FREEBSD_SIGXCPU; | |
1868 | ||
1869 | case GDB_SIGNAL_XFSZ: | |
1870 | return FREEBSD_SIGXFSZ; | |
1871 | ||
1872 | case GDB_SIGNAL_VTALRM: | |
1873 | return FREEBSD_SIGVTALRM; | |
1874 | ||
1875 | case GDB_SIGNAL_PROF: | |
1876 | return FREEBSD_SIGPROF; | |
1877 | ||
1878 | case GDB_SIGNAL_WINCH: | |
1879 | return FREEBSD_SIGWINCH; | |
1880 | ||
1881 | case GDB_SIGNAL_INFO: | |
1882 | return FREEBSD_SIGINFO; | |
1883 | ||
1884 | case GDB_SIGNAL_USR1: | |
1885 | return FREEBSD_SIGUSR1; | |
1886 | ||
1887 | case GDB_SIGNAL_USR2: | |
1888 | return FREEBSD_SIGUSR2; | |
1889 | ||
1890 | case GDB_SIGNAL_LWP: | |
1891 | return FREEBSD_SIGTHR; | |
1892 | ||
1893 | case GDB_SIGNAL_LIBRT: | |
1894 | return FREEBSD_SIGLIBRT; | |
1895 | } | |
1896 | ||
1897 | if (signal >= GDB_SIGNAL_REALTIME_65 | |
1898 | && signal <= GDB_SIGNAL_REALTIME_126) | |
1899 | { | |
1900 | int offset = signal - GDB_SIGNAL_REALTIME_65; | |
1901 | ||
1902 | return FREEBSD_SIGRTMIN + offset; | |
1903 | } | |
1904 | ||
1905 | return -1; | |
1906 | } | |
1907 | ||
e6cdd38e JB |
1908 | /* Implement the "get_syscall_number" gdbarch method. */ |
1909 | ||
1910 | static LONGEST | |
00431a78 | 1911 | fbsd_get_syscall_number (struct gdbarch *gdbarch, thread_info *thread) |
e6cdd38e JB |
1912 | { |
1913 | ||
1914 | /* FreeBSD doesn't use gdbarch_get_syscall_number since FreeBSD | |
1915 | native targets fetch the system call number from the | |
1916 | 'pl_syscall_code' member of struct ptrace_lwpinfo in fbsd_wait. | |
1917 | However, system call catching requires this function to be | |
1918 | set. */ | |
1919 | ||
1920 | internal_error (__FILE__, __LINE__, _("fbsd_get_sycall_number called")); | |
1921 | } | |
1922 | ||
945f3901 JB |
1923 | /* Read an integer symbol value from the current target. */ |
1924 | ||
1925 | static LONGEST | |
1926 | fbsd_read_integer_by_name (struct gdbarch *gdbarch, const char *name) | |
1927 | { | |
1928 | bound_minimal_symbol ms = lookup_minimal_symbol (name, NULL, NULL); | |
1929 | if (ms.minsym == NULL) | |
1930 | error (_("Unable to resolve symbol '%s'"), name); | |
1931 | ||
1932 | gdb_byte buf[4]; | |
1933 | if (target_read_memory (BMSYMBOL_VALUE_ADDRESS (ms), buf, sizeof buf) != 0) | |
1934 | error (_("Unable to read value of '%s'"), name); | |
1935 | ||
1936 | return extract_signed_integer (buf, sizeof buf, gdbarch_byte_order (gdbarch)); | |
1937 | } | |
1938 | ||
1939 | /* Lookup offsets of fields in the runtime linker's 'Obj_Entry' | |
1940 | structure needed to determine the TLS index of an object file. */ | |
1941 | ||
1942 | static void | |
1943 | fbsd_fetch_rtld_offsets (struct gdbarch *gdbarch, struct fbsd_pspace_data *data) | |
1944 | { | |
a70b8144 | 1945 | try |
945f3901 JB |
1946 | { |
1947 | /* Fetch offsets from debug symbols in rtld. */ | |
1948 | struct symbol *obj_entry_sym | |
1949 | = lookup_symbol_in_language ("Struct_Obj_Entry", NULL, STRUCT_DOMAIN, | |
1950 | language_c, NULL).symbol; | |
1951 | if (obj_entry_sym == NULL) | |
1952 | error (_("Unable to find Struct_Obj_Entry symbol")); | |
78134374 | 1953 | data->off_linkmap = lookup_struct_elt (SYMBOL_TYPE (obj_entry_sym), |
945f3901 | 1954 | "linkmap", 0).offset / 8; |
78134374 | 1955 | data->off_tlsindex = lookup_struct_elt (SYMBOL_TYPE (obj_entry_sym), |
945f3901 JB |
1956 | "tlsindex", 0).offset / 8; |
1957 | data->rtld_offsets_valid = true; | |
1958 | return; | |
1959 | } | |
230d2906 | 1960 | catch (const gdb_exception_error &e) |
945f3901 JB |
1961 | { |
1962 | data->off_linkmap = -1; | |
1963 | } | |
945f3901 | 1964 | |
a70b8144 | 1965 | try |
945f3901 JB |
1966 | { |
1967 | /* Fetch offsets from global variables in libthr. Note that | |
1968 | this does not work for single-threaded processes that are not | |
1969 | linked against libthr. */ | |
1970 | data->off_linkmap = fbsd_read_integer_by_name (gdbarch, | |
1971 | "_thread_off_linkmap"); | |
1972 | data->off_tlsindex = fbsd_read_integer_by_name (gdbarch, | |
1973 | "_thread_off_tlsindex"); | |
1974 | data->rtld_offsets_valid = true; | |
1975 | return; | |
1976 | } | |
230d2906 | 1977 | catch (const gdb_exception_error &e) |
945f3901 JB |
1978 | { |
1979 | data->off_linkmap = -1; | |
1980 | } | |
945f3901 JB |
1981 | } |
1982 | ||
1983 | /* Helper function to read the TLS index of an object file associated | |
1984 | with a link map entry at LM_ADDR. */ | |
1985 | ||
1986 | static LONGEST | |
1987 | fbsd_get_tls_index (struct gdbarch *gdbarch, CORE_ADDR lm_addr) | |
1988 | { | |
1989 | struct fbsd_pspace_data *data = get_fbsd_pspace_data (current_program_space); | |
1990 | ||
1991 | if (!data->rtld_offsets_valid) | |
1992 | fbsd_fetch_rtld_offsets (gdbarch, data); | |
1993 | ||
1994 | if (data->off_linkmap == -1) | |
1995 | throw_error (TLS_GENERIC_ERROR, | |
1996 | _("Cannot fetch runtime linker structure offsets")); | |
1997 | ||
1998 | /* Simulate container_of to convert from LM_ADDR to the Obj_Entry | |
1999 | pointer and then compute the offset of the tlsindex member. */ | |
2000 | CORE_ADDR tlsindex_addr = lm_addr - data->off_linkmap + data->off_tlsindex; | |
2001 | ||
2002 | gdb_byte buf[4]; | |
2003 | if (target_read_memory (tlsindex_addr, buf, sizeof buf) != 0) | |
2004 | throw_error (TLS_GENERIC_ERROR, | |
2005 | _("Cannot find thread-local variables on this target")); | |
2006 | ||
2007 | return extract_signed_integer (buf, sizeof buf, gdbarch_byte_order (gdbarch)); | |
2008 | } | |
2009 | ||
2010 | /* See fbsd-tdep.h. */ | |
2011 | ||
2012 | CORE_ADDR | |
2013 | fbsd_get_thread_local_address (struct gdbarch *gdbarch, CORE_ADDR dtv_addr, | |
2014 | CORE_ADDR lm_addr, CORE_ADDR offset) | |
2015 | { | |
2016 | LONGEST tls_index = fbsd_get_tls_index (gdbarch, lm_addr); | |
2017 | ||
2018 | gdb_byte buf[gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT]; | |
2019 | if (target_read_memory (dtv_addr, buf, sizeof buf) != 0) | |
2020 | throw_error (TLS_GENERIC_ERROR, | |
2021 | _("Cannot find thread-local variables on this target")); | |
2022 | ||
2023 | const struct builtin_type *builtin = builtin_type (gdbarch); | |
2024 | CORE_ADDR addr = gdbarch_pointer_to_address (gdbarch, | |
2025 | builtin->builtin_data_ptr, buf); | |
2026 | ||
2027 | addr += (tls_index + 1) * TYPE_LENGTH (builtin->builtin_data_ptr); | |
2028 | if (target_read_memory (addr, buf, sizeof buf) != 0) | |
2029 | throw_error (TLS_GENERIC_ERROR, | |
2030 | _("Cannot find thread-local variables on this target")); | |
2031 | ||
2032 | addr = gdbarch_pointer_to_address (gdbarch, builtin->builtin_data_ptr, buf); | |
2033 | return addr + offset; | |
2034 | } | |
2035 | ||
ed810cc7 JB |
2036 | /* See fbsd-tdep.h. */ |
2037 | ||
2038 | CORE_ADDR | |
2039 | fbsd_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc) | |
2040 | { | |
2041 | struct bound_minimal_symbol msym = lookup_bound_minimal_symbol ("_rtld_bind"); | |
2042 | if (msym.minsym != nullptr && BMSYMBOL_VALUE_ADDRESS (msym) == pc) | |
2043 | return frame_unwind_caller_pc (get_current_frame ()); | |
2044 | ||
2045 | return 0; | |
2046 | } | |
2047 | ||
83810881 JB |
2048 | /* Return description of signal code or nullptr. */ |
2049 | ||
2050 | static const char * | |
2051 | fbsd_signal_cause (enum gdb_signal siggnal, int code) | |
2052 | { | |
2053 | /* Signal-independent causes. */ | |
2054 | switch (code) | |
2055 | { | |
2056 | case FBSD_SI_USER: | |
2057 | return _("Sent by kill()"); | |
2058 | case FBSD_SI_QUEUE: | |
2059 | return _("Sent by sigqueue()"); | |
2060 | case FBSD_SI_TIMER: | |
2061 | return _("Timer expired"); | |
2062 | case FBSD_SI_ASYNCIO: | |
2063 | return _("Asynchronous I/O request completed"); | |
2064 | case FBSD_SI_MESGQ: | |
2065 | return _("Message arrived on empty message queue"); | |
2066 | case FBSD_SI_KERNEL: | |
2067 | return _("Sent by kernel"); | |
2068 | case FBSD_SI_LWP: | |
2069 | return _("Sent by thr_kill()"); | |
2070 | } | |
2071 | ||
2072 | switch (siggnal) | |
2073 | { | |
2074 | case GDB_SIGNAL_ILL: | |
2075 | switch (code) | |
2076 | { | |
2077 | case FBSD_ILL_ILLOPC: | |
2078 | return _("Illegal opcode"); | |
2079 | case FBSD_ILL_ILLOPN: | |
2080 | return _("Illegal operand"); | |
2081 | case FBSD_ILL_ILLADR: | |
2082 | return _("Illegal addressing mode"); | |
2083 | case FBSD_ILL_ILLTRP: | |
2084 | return _("Illegal trap"); | |
2085 | case FBSD_ILL_PRVOPC: | |
2086 | return _("Privileged opcode"); | |
2087 | case FBSD_ILL_PRVREG: | |
2088 | return _("Privileged register"); | |
2089 | case FBSD_ILL_COPROC: | |
2090 | return _("Coprocessor error"); | |
2091 | case FBSD_ILL_BADSTK: | |
2092 | return _("Internal stack error"); | |
2093 | } | |
2094 | break; | |
2095 | case GDB_SIGNAL_BUS: | |
2096 | switch (code) | |
2097 | { | |
2098 | case FBSD_BUS_ADRALN: | |
2099 | return _("Invalid address alignment"); | |
2100 | case FBSD_BUS_ADRERR: | |
2101 | return _("Address not present"); | |
2102 | case FBSD_BUS_OBJERR: | |
2103 | return _("Object-specific hardware error"); | |
2104 | case FBSD_BUS_OOMERR: | |
2105 | return _("Out of memory"); | |
2106 | } | |
2107 | break; | |
2108 | case GDB_SIGNAL_SEGV: | |
2109 | switch (code) | |
2110 | { | |
2111 | case FBSD_SEGV_MAPERR: | |
2112 | return _("Address not mapped to object"); | |
2113 | case FBSD_SEGV_ACCERR: | |
2114 | return _("Invalid permissions for mapped object"); | |
2115 | case FBSD_SEGV_PKUERR: | |
2116 | return _("PKU violation"); | |
2117 | } | |
2118 | break; | |
2119 | case GDB_SIGNAL_FPE: | |
2120 | switch (code) | |
2121 | { | |
2122 | case FBSD_FPE_INTOVF: | |
2123 | return _("Integer overflow"); | |
2124 | case FBSD_FPE_INTDIV: | |
2125 | return _("Integer divide by zero"); | |
2126 | case FBSD_FPE_FLTDIV: | |
2127 | return _("Floating point divide by zero"); | |
2128 | case FBSD_FPE_FLTOVF: | |
2129 | return _("Floating point overflow"); | |
2130 | case FBSD_FPE_FLTUND: | |
2131 | return _("Floating point underflow"); | |
2132 | case FBSD_FPE_FLTRES: | |
2133 | return _("Floating point inexact result"); | |
2134 | case FBSD_FPE_FLTINV: | |
2135 | return _("Invalid floating point operation"); | |
2136 | case FBSD_FPE_FLTSUB: | |
2137 | return _("Subscript out of range"); | |
2138 | } | |
2139 | break; | |
2140 | case GDB_SIGNAL_TRAP: | |
2141 | switch (code) | |
2142 | { | |
2143 | case FBSD_TRAP_BRKPT: | |
2144 | return _("Breakpoint"); | |
2145 | case FBSD_TRAP_TRACE: | |
2146 | return _("Trace trap"); | |
2147 | case FBSD_TRAP_DTRACE: | |
2148 | return _("DTrace-induced trap"); | |
2149 | case FBSD_TRAP_CAP: | |
2150 | return _("Capability violation"); | |
2151 | } | |
2152 | break; | |
2153 | case GDB_SIGNAL_CHLD: | |
2154 | switch (code) | |
2155 | { | |
2156 | case FBSD_CLD_EXITED: | |
2157 | return _("Child has exited"); | |
2158 | case FBSD_CLD_KILLED: | |
2159 | return _("Child has terminated abnormally"); | |
2160 | case FBSD_CLD_DUMPED: | |
2161 | return _("Child has dumped core"); | |
2162 | case FBSD_CLD_TRAPPED: | |
2163 | return _("Traced child has trapped"); | |
2164 | case FBSD_CLD_STOPPED: | |
2165 | return _("Child has stopped"); | |
2166 | case FBSD_CLD_CONTINUED: | |
2167 | return _("Stopped child has continued"); | |
2168 | } | |
2169 | break; | |
2170 | case GDB_SIGNAL_POLL: | |
2171 | switch (code) | |
2172 | { | |
2173 | case FBSD_POLL_IN: | |
2174 | return _("Data input available"); | |
2175 | case FBSD_POLL_OUT: | |
2176 | return _("Output buffers available"); | |
2177 | case FBSD_POLL_MSG: | |
2178 | return _("Input message available"); | |
2179 | case FBSD_POLL_ERR: | |
2180 | return _("I/O error"); | |
2181 | case FBSD_POLL_PRI: | |
2182 | return _("High priority input available"); | |
2183 | case FBSD_POLL_HUP: | |
2184 | return _("Device disconnected"); | |
2185 | } | |
2186 | break; | |
2187 | } | |
2188 | ||
2189 | return nullptr; | |
2190 | } | |
2191 | ||
2192 | /* Report additional details for a signal stop. */ | |
2193 | ||
2194 | static void | |
2195 | fbsd_report_signal_info (struct gdbarch *gdbarch, struct ui_out *uiout, | |
2196 | enum gdb_signal siggnal) | |
2197 | { | |
2198 | LONGEST code, mqd, pid, status, timerid, uid; | |
2199 | ||
2200 | try | |
2201 | { | |
2202 | code = parse_and_eval_long ("$_siginfo.si_code"); | |
2203 | pid = parse_and_eval_long ("$_siginfo.si_pid"); | |
2204 | uid = parse_and_eval_long ("$_siginfo.si_uid"); | |
2205 | status = parse_and_eval_long ("$_siginfo.si_status"); | |
2206 | timerid = parse_and_eval_long ("$_siginfo._reason._timer.si_timerid"); | |
2207 | mqd = parse_and_eval_long ("$_siginfo._reason._mesgq.si_mqd"); | |
2208 | } | |
2209 | catch (const gdb_exception_error &e) | |
2210 | { | |
2211 | return; | |
2212 | } | |
2213 | ||
2214 | const char *meaning = fbsd_signal_cause (siggnal, code); | |
2215 | if (meaning == nullptr) | |
2216 | return; | |
2217 | ||
2218 | uiout->text (".\n"); | |
2219 | uiout->field_string ("sigcode-meaning", meaning); | |
2220 | ||
2221 | switch (code) | |
2222 | { | |
2223 | case FBSD_SI_USER: | |
2224 | case FBSD_SI_QUEUE: | |
2225 | case FBSD_SI_LWP: | |
2226 | uiout->text (" from pid "); | |
2227 | uiout->field_string ("sending-pid", plongest (pid)); | |
2228 | uiout->text (" and user "); | |
2229 | uiout->field_string ("sending-uid", plongest (uid)); | |
2230 | return; | |
2231 | case FBSD_SI_TIMER: | |
2232 | uiout->text (": timerid "); | |
2233 | uiout->field_string ("timerid", plongest (timerid)); | |
2234 | return; | |
2235 | case FBSD_SI_MESGQ: | |
2236 | uiout->text (": message queue "); | |
2237 | uiout->field_string ("message-queue", plongest (mqd)); | |
2238 | return; | |
2239 | case FBSD_SI_ASYNCIO: | |
2240 | return; | |
2241 | } | |
2242 | ||
2243 | if (siggnal == GDB_SIGNAL_CHLD) | |
2244 | { | |
2245 | uiout->text (": pid "); | |
2246 | uiout->field_string ("child-pid", plongest (pid)); | |
2247 | uiout->text (", uid "); | |
2248 | uiout->field_string ("child-uid", plongest (uid)); | |
2249 | if (code == FBSD_CLD_EXITED) | |
2250 | { | |
2251 | uiout->text (", exit status "); | |
2252 | uiout->field_string ("exit-status", plongest (status)); | |
2253 | } | |
2254 | else | |
2255 | { | |
2256 | uiout->text (", signal "); | |
2257 | uiout->field_string ("signal", plongest (status)); | |
2258 | } | |
2259 | } | |
2260 | } | |
2261 | ||
1736a7bd | 2262 | /* To be called from GDB_OSABI_FREEBSD handlers. */ |
a904c024 AA |
2263 | |
2264 | void | |
2265 | fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) | |
2266 | { | |
79117428 JB |
2267 | set_gdbarch_core_pid_to_str (gdbarch, fbsd_core_pid_to_str); |
2268 | set_gdbarch_core_thread_name (gdbarch, fbsd_core_thread_name); | |
4b654465 | 2269 | set_gdbarch_core_xfer_siginfo (gdbarch, fbsd_core_xfer_siginfo); |
a904c024 | 2270 | set_gdbarch_make_corefile_notes (gdbarch, fbsd_make_corefile_notes); |
d2176225 | 2271 | set_gdbarch_core_info_proc (gdbarch, fbsd_core_info_proc); |
82372b2f | 2272 | set_gdbarch_print_auxv_entry (gdbarch, fbsd_print_auxv_entry); |
762c974a | 2273 | set_gdbarch_get_siginfo_type (gdbarch, fbsd_get_siginfo_type); |
e61667ef RS |
2274 | set_gdbarch_gdb_signal_from_target (gdbarch, fbsd_gdb_signal_from_target); |
2275 | set_gdbarch_gdb_signal_to_target (gdbarch, fbsd_gdb_signal_to_target); | |
83810881 | 2276 | set_gdbarch_report_signal_info (gdbarch, fbsd_report_signal_info); |
ed810cc7 | 2277 | set_gdbarch_skip_solib_resolver (gdbarch, fbsd_skip_solib_resolver); |
e6cdd38e JB |
2278 | |
2279 | /* `catch syscall' */ | |
2280 | set_xml_syscall_file_name (gdbarch, "syscalls/freebsd.xml"); | |
2281 | set_gdbarch_get_syscall_number (gdbarch, fbsd_get_syscall_number); | |
a904c024 | 2282 | } |
762c974a | 2283 | |
6c265988 | 2284 | void _initialize_fbsd_tdep (); |
762c974a | 2285 | void |
6c265988 | 2286 | _initialize_fbsd_tdep () |
762c974a JB |
2287 | { |
2288 | fbsd_gdbarch_data_handle = | |
2289 | gdbarch_data_register_post_init (init_fbsd_gdbarch_data); | |
2290 | } |