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1 | /* Low level interface for debugging AIX 4.3+ pthreads. |
2 | ||
9b254dd1 | 3 | Copyright (C) 1999, 2000, 2002, 2007, 2008 Free Software Foundation, Inc. |
c11d79f2 KB |
4 | Written by Nick Duffek <nsd@redhat.com>. |
5 | ||
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
c11d79f2 KB |
11 | (at your option) any later version. |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c11d79f2 KB |
20 | |
21 | ||
22 | /* This module uses the libpthdebug.a library provided by AIX 4.3+ for | |
23 | debugging pthread applications. | |
24 | ||
25 | Some name prefix conventions: | |
26 | pthdb_ provided by libpthdebug.a | |
27 | pdc_ callbacks that this module provides to libpthdebug.a | |
28 | pd_ variables or functions interfacing with libpthdebug.a | |
29 | ||
30 | libpthdebug peculiarities: | |
31 | ||
0fe7bf7b MS |
32 | - pthdb_ptid_pthread() is prototyped in <sys/pthdebug.h>, but |
33 | it's not documented, and after several calls it stops working | |
34 | and causes other libpthdebug functions to fail. | |
c11d79f2 | 35 | |
0fe7bf7b MS |
36 | - pthdb_tid_pthread() doesn't always work after |
37 | pthdb_session_update(), but it does work after cycling through | |
38 | all threads using pthdb_pthread(). | |
c11d79f2 KB |
39 | |
40 | */ | |
41 | ||
42 | #include "defs.h" | |
61c5da0b | 43 | #include "gdb_assert.h" |
c11d79f2 KB |
44 | #include "gdbthread.h" |
45 | #include "target.h" | |
46 | #include "inferior.h" | |
47 | #include "regcache.h" | |
8e2c28d4 | 48 | #include "gdbcmd.h" |
27bae383 | 49 | #include "ppc-tdep.h" |
0d4d5484 | 50 | #include "gdb_string.h" |
06d3b283 | 51 | #include "observer.h" |
c11d79f2 | 52 | |
c11d79f2 KB |
53 | #include <procinfo.h> |
54 | #include <sys/types.h> | |
55 | #include <sys/ptrace.h> | |
56 | #include <sys/reg.h> | |
c11d79f2 KB |
57 | #include <sched.h> |
58 | #include <sys/pthdebug.h> | |
59 | ||
0fe7bf7b | 60 | /* Whether to emit debugging output. */ |
8e2c28d4 | 61 | static int debug_aix_thread; |
c11d79f2 | 62 | |
0fe7bf7b | 63 | /* In AIX 5.1, functions use pthdb_tid_t instead of tid_t. */ |
c11d79f2 KB |
64 | #ifndef PTHDB_VERSION_3 |
65 | #define pthdb_tid_t tid_t | |
66 | #endif | |
67 | ||
0fe7bf7b | 68 | /* Return whether to treat PID as a debuggable thread id. */ |
c11d79f2 KB |
69 | |
70 | #define PD_TID(ptid) (pd_active && ptid_get_tid (ptid) != 0) | |
71 | ||
72 | /* Build a thread ptid. */ | |
73 | #define BUILD_THREAD(TID, PID) ptid_build (PID, 0, TID) | |
74 | ||
75 | /* Build and lwp ptid. */ | |
76 | #define BUILD_LWP(LWP, PID) MERGEPID (PID, LWP) | |
77 | ||
c11d79f2 | 78 | /* pthdb_user_t value that we pass to pthdb functions. 0 causes |
0fe7bf7b | 79 | PTHDB_BAD_USER errors, so use 1. */ |
c11d79f2 KB |
80 | |
81 | #define PD_USER 1 | |
82 | ||
0fe7bf7b | 83 | /* Success and failure values returned by pthdb callbacks. */ |
c11d79f2 KB |
84 | |
85 | #define PDC_SUCCESS PTHDB_SUCCESS | |
86 | #define PDC_FAILURE PTHDB_CALLBACK | |
87 | ||
0fe7bf7b | 88 | /* Private data attached to each element in GDB's thread list. */ |
c11d79f2 KB |
89 | |
90 | struct private_thread_info { | |
0fe7bf7b | 91 | pthdb_pthread_t pdtid; /* thread's libpthdebug id */ |
c11d79f2 KB |
92 | pthdb_tid_t tid; /* kernel thread id */ |
93 | }; | |
94 | ||
0fe7bf7b | 95 | /* Information about a thread of which libpthdebug is aware. */ |
c11d79f2 KB |
96 | |
97 | struct pd_thread { | |
98 | pthdb_pthread_t pdtid; | |
99 | pthread_t pthid; | |
100 | pthdb_tid_t tid; | |
101 | }; | |
102 | ||
0fe7bf7b | 103 | /* This module's target-specific operations, active while pd_able is true. */ |
c11d79f2 | 104 | |
206d3d3c | 105 | static struct target_ops aix_thread_ops; |
c11d79f2 | 106 | |
1df84f13 AC |
107 | /* Copy of the target over which ops is pushed. This is more |
108 | convenient than a pointer to deprecated_child_ops or core_ops, | |
0fe7bf7b | 109 | because they lack current_target's default callbacks. */ |
c11d79f2 | 110 | |
206d3d3c | 111 | static struct target_ops base_target; |
c11d79f2 | 112 | |
0fe7bf7b MS |
113 | /* Address of the function that libpthread will call when libpthdebug |
114 | is ready to be initialized. */ | |
c11d79f2 KB |
115 | |
116 | static CORE_ADDR pd_brk_addr; | |
117 | ||
0fe7bf7b | 118 | /* Whether the current application is debuggable by pthdb. */ |
c11d79f2 KB |
119 | |
120 | static int pd_able = 0; | |
121 | ||
0fe7bf7b | 122 | /* Whether a threaded application is being debugged. */ |
c11d79f2 KB |
123 | |
124 | static int pd_active = 0; | |
125 | ||
0fe7bf7b MS |
126 | /* Whether the current architecture is 64-bit. |
127 | Only valid when pd_able is true. */ | |
c11d79f2 KB |
128 | |
129 | static int arch64; | |
130 | ||
0fe7bf7b | 131 | /* Forward declarations for pthdb callbacks. */ |
c11d79f2 KB |
132 | |
133 | static int pdc_symbol_addrs (pthdb_user_t, pthdb_symbol_t *, int); | |
134 | static int pdc_read_data (pthdb_user_t, void *, pthdb_addr_t, size_t); | |
135 | static int pdc_write_data (pthdb_user_t, void *, pthdb_addr_t, size_t); | |
136 | static int pdc_read_regs (pthdb_user_t user, pthdb_tid_t tid, | |
0fe7bf7b MS |
137 | unsigned long long flags, |
138 | pthdb_context_t *context); | |
c11d79f2 | 139 | static int pdc_write_regs (pthdb_user_t user, pthdb_tid_t tid, |
0fe7bf7b MS |
140 | unsigned long long flags, |
141 | pthdb_context_t *context); | |
c11d79f2 KB |
142 | static int pdc_alloc (pthdb_user_t, size_t, void **); |
143 | static int pdc_realloc (pthdb_user_t, void *, size_t, void **); | |
144 | static int pdc_dealloc (pthdb_user_t, void *); | |
145 | ||
0fe7bf7b | 146 | /* pthdb callbacks. */ |
c11d79f2 KB |
147 | |
148 | static pthdb_callbacks_t pd_callbacks = { | |
149 | pdc_symbol_addrs, | |
150 | pdc_read_data, | |
151 | pdc_write_data, | |
152 | pdc_read_regs, | |
153 | pdc_write_regs, | |
154 | pdc_alloc, | |
155 | pdc_realloc, | |
156 | pdc_dealloc, | |
157 | NULL | |
158 | }; | |
159 | ||
0fe7bf7b | 160 | /* Current pthdb session. */ |
c11d79f2 KB |
161 | |
162 | static pthdb_session_t pd_session; | |
163 | ||
0fe7bf7b MS |
164 | /* Return a printable representation of pthdebug function return |
165 | STATUS. */ | |
c11d79f2 KB |
166 | |
167 | static char * | |
168 | pd_status2str (int status) | |
169 | { | |
170 | switch (status) | |
171 | { | |
172 | case PTHDB_SUCCESS: return "SUCCESS"; | |
173 | case PTHDB_NOSYS: return "NOSYS"; | |
174 | case PTHDB_NOTSUP: return "NOTSUP"; | |
175 | case PTHDB_BAD_VERSION: return "BAD_VERSION"; | |
176 | case PTHDB_BAD_USER: return "BAD_USER"; | |
177 | case PTHDB_BAD_SESSION: return "BAD_SESSION"; | |
178 | case PTHDB_BAD_MODE: return "BAD_MODE"; | |
179 | case PTHDB_BAD_FLAGS: return "BAD_FLAGS"; | |
180 | case PTHDB_BAD_CALLBACK: return "BAD_CALLBACK"; | |
181 | case PTHDB_BAD_POINTER: return "BAD_POINTER"; | |
182 | case PTHDB_BAD_CMD: return "BAD_CMD"; | |
183 | case PTHDB_BAD_PTHREAD: return "BAD_PTHREAD"; | |
184 | case PTHDB_BAD_ATTR: return "BAD_ATTR"; | |
185 | case PTHDB_BAD_MUTEX: return "BAD_MUTEX"; | |
186 | case PTHDB_BAD_MUTEXATTR: return "BAD_MUTEXATTR"; | |
187 | case PTHDB_BAD_COND: return "BAD_COND"; | |
188 | case PTHDB_BAD_CONDATTR: return "BAD_CONDATTR"; | |
189 | case PTHDB_BAD_RWLOCK: return "BAD_RWLOCK"; | |
190 | case PTHDB_BAD_RWLOCKATTR: return "BAD_RWLOCKATTR"; | |
191 | case PTHDB_BAD_KEY: return "BAD_KEY"; | |
192 | case PTHDB_BAD_PTID: return "BAD_PTID"; | |
193 | case PTHDB_BAD_TID: return "BAD_TID"; | |
194 | case PTHDB_CALLBACK: return "CALLBACK"; | |
195 | case PTHDB_CONTEXT: return "CONTEXT"; | |
196 | case PTHDB_HELD: return "HELD"; | |
197 | case PTHDB_NOT_HELD: return "NOT_HELD"; | |
198 | case PTHDB_MEMORY: return "MEMORY"; | |
199 | case PTHDB_NOT_PTHREADED: return "NOT_PTHREADED"; | |
200 | case PTHDB_SYMBOL: return "SYMBOL"; | |
201 | case PTHDB_NOT_AVAIL: return "NOT_AVAIL"; | |
202 | case PTHDB_INTERNAL: return "INTERNAL"; | |
203 | default: return "UNKNOWN"; | |
204 | } | |
205 | } | |
206 | ||
0fe7bf7b MS |
207 | /* A call to ptrace(REQ, ID, ...) just returned RET. Check for |
208 | exceptional conditions and either return nonlocally or else return | |
209 | 1 for success and 0 for failure. */ | |
c11d79f2 KB |
210 | |
211 | static int | |
212 | ptrace_check (int req, int id, int ret) | |
213 | { | |
214 | if (ret == 0 && !errno) | |
215 | return 1; | |
216 | ||
0fe7bf7b MS |
217 | /* According to ptrace(2), ptrace may fail with EPERM if "the |
218 | Identifier parameter corresponds to a kernel thread which is | |
219 | stopped in kernel mode and whose computational state cannot be | |
220 | read or written." This happens quite often with register reads. */ | |
c11d79f2 KB |
221 | |
222 | switch (req) | |
223 | { | |
224 | case PTT_READ_GPRS: | |
225 | case PTT_READ_FPRS: | |
226 | case PTT_READ_SPRS: | |
227 | if (ret == -1 && errno == EPERM) | |
42cc437f KB |
228 | { |
229 | if (debug_aix_thread) | |
0fe7bf7b | 230 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 231 | "ptrace (%d, %d) = %d (errno = %d)\n", |
42cc437f KB |
232 | req, id, ret, errno); |
233 | return ret == -1 ? 0 : 1; | |
234 | } | |
c11d79f2 KB |
235 | break; |
236 | } | |
edefbb7c | 237 | error (_("aix-thread: ptrace (%d, %d) returned %d (errno = %d %s)"), |
be006b8b | 238 | req, id, ret, errno, safe_strerror (errno)); |
0fe7bf7b | 239 | return 0; /* Not reached. */ |
c11d79f2 KB |
240 | } |
241 | ||
0fe7bf7b | 242 | /* Call ptracex (REQ, ID, ADDR, DATA, BUF). Return success. */ |
c11d79f2 KB |
243 | |
244 | static int | |
245 | ptrace64aix (int req, int id, long long addr, int data, int *buf) | |
246 | { | |
247 | errno = 0; | |
248 | return ptrace_check (req, id, ptracex (req, id, addr, data, buf)); | |
249 | } | |
250 | ||
0fe7bf7b | 251 | /* Call ptrace (REQ, ID, ADDR, DATA, BUF). Return success. */ |
c11d79f2 KB |
252 | |
253 | static int | |
254 | ptrace32 (int req, int id, int *addr, int data, int *buf) | |
255 | { | |
256 | errno = 0; | |
0fe7bf7b | 257 | return ptrace_check (req, id, |
206d3d3c | 258 | ptrace (req, id, (int *) addr, data, buf)); |
c11d79f2 KB |
259 | } |
260 | ||
0fe7bf7b MS |
261 | /* If *PIDP is a composite process/thread id, convert it to a |
262 | process id. */ | |
c11d79f2 KB |
263 | |
264 | static void | |
265 | pid_to_prc (ptid_t *ptidp) | |
266 | { | |
267 | ptid_t ptid; | |
268 | ||
269 | ptid = *ptidp; | |
270 | if (PD_TID (ptid)) | |
271 | *ptidp = pid_to_ptid (PIDGET (ptid)); | |
272 | } | |
273 | ||
0fe7bf7b MS |
274 | /* pthdb callback: for <i> from 0 to COUNT, set SYMBOLS[<i>].addr to |
275 | the address of SYMBOLS[<i>].name. */ | |
c11d79f2 KB |
276 | |
277 | static int | |
278 | pdc_symbol_addrs (pthdb_user_t user, pthdb_symbol_t *symbols, int count) | |
279 | { | |
280 | struct minimal_symbol *ms; | |
281 | int i; | |
282 | char *name; | |
283 | ||
8e2c28d4 KB |
284 | if (debug_aix_thread) |
285 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 286 | "pdc_symbol_addrs (user = %ld, symbols = 0x%lx, count = %d)\n", |
8e2c28d4 | 287 | user, (long) symbols, count); |
c11d79f2 KB |
288 | |
289 | for (i = 0; i < count; i++) | |
290 | { | |
291 | name = symbols[i].name; | |
8e2c28d4 | 292 | if (debug_aix_thread) |
0fe7bf7b | 293 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 294 | " symbols[%d].name = \"%s\"\n", i, name); |
c11d79f2 KB |
295 | |
296 | if (!*name) | |
297 | symbols[i].addr = 0; | |
298 | else | |
299 | { | |
300 | if (!(ms = lookup_minimal_symbol (name, NULL, NULL))) | |
301 | { | |
8e2c28d4 | 302 | if (debug_aix_thread) |
27bae383 | 303 | fprintf_unfiltered (gdb_stdlog, " returning PDC_FAILURE\n"); |
c11d79f2 KB |
304 | return PDC_FAILURE; |
305 | } | |
306 | symbols[i].addr = SYMBOL_VALUE_ADDRESS (ms); | |
307 | } | |
8e2c28d4 | 308 | if (debug_aix_thread) |
27bae383 | 309 | fprintf_unfiltered (gdb_stdlog, " symbols[%d].addr = %s\n", |
bb599908 | 310 | i, hex_string (symbols[i].addr)); |
c11d79f2 | 311 | } |
8e2c28d4 | 312 | if (debug_aix_thread) |
27bae383 | 313 | fprintf_unfiltered (gdb_stdlog, " returning PDC_SUCCESS\n"); |
c11d79f2 KB |
314 | return PDC_SUCCESS; |
315 | } | |
316 | ||
0fe7bf7b MS |
317 | /* Read registers call back function should be able to read the |
318 | context information of a debuggee kernel thread from an active | |
319 | process or from a core file. The information should be formatted | |
320 | in context64 form for both 32-bit and 64-bit process. | |
321 | If successful return 0, else non-zero is returned. */ | |
322 | ||
c11d79f2 KB |
323 | static int |
324 | pdc_read_regs (pthdb_user_t user, | |
325 | pthdb_tid_t tid, | |
326 | unsigned long long flags, | |
327 | pthdb_context_t *context) | |
328 | { | |
0fe7bf7b MS |
329 | /* This function doesn't appear to be used, so we could probably |
330 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
331 | complain and several thread debug functions will fail. In case | |
332 | this is needed, I have implemented what I think it should do, | |
333 | however this code is untested. */ | |
334 | ||
063715bf JB |
335 | uint64_t gprs64[ppc_num_gprs]; |
336 | uint32_t gprs32[ppc_num_gprs]; | |
337 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
338 | struct ptxsprs sprs64; |
339 | struct ptsprs sprs32; | |
340 | ||
8e2c28d4 | 341 | if (debug_aix_thread) |
27bae383 | 342 | fprintf_unfiltered (gdb_stdlog, "pdc_read_regs tid=%d flags=%s\n", |
bb599908 | 343 | (int) tid, hex_string (flags)); |
c11d79f2 | 344 | |
0fe7bf7b | 345 | /* General-purpose registers. */ |
c11d79f2 KB |
346 | if (flags & PTHDB_FLAG_GPRS) |
347 | { | |
348 | if (arch64) | |
349 | { | |
0fe7bf7b MS |
350 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
351 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 KB |
352 | memset (gprs64, 0, sizeof (gprs64)); |
353 | memcpy (context->gpr, gprs64, sizeof(gprs64)); | |
354 | } | |
355 | else | |
356 | { | |
357 | if (!ptrace32 (PTT_READ_GPRS, tid, gprs32, 0, NULL)) | |
358 | memset (gprs32, 0, sizeof (gprs32)); | |
359 | memcpy (context->gpr, gprs32, sizeof(gprs32)); | |
360 | } | |
361 | } | |
362 | ||
0fe7bf7b | 363 | /* Floating-point registers. */ |
c11d79f2 KB |
364 | if (flags & PTHDB_FLAG_FPRS) |
365 | { | |
366 | if (!ptrace32 (PTT_READ_FPRS, tid, (int *) fprs, 0, NULL)) | |
367 | memset (fprs, 0, sizeof (fprs)); | |
46bba1ef | 368 | memcpy (context->fpr, fprs, sizeof(fprs)); |
c11d79f2 KB |
369 | } |
370 | ||
0fe7bf7b | 371 | /* Special-purpose registers. */ |
c11d79f2 KB |
372 | if (flags & PTHDB_FLAG_SPRS) |
373 | { | |
374 | if (arch64) | |
375 | { | |
0fe7bf7b MS |
376 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
377 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 KB |
378 | memset (&sprs64, 0, sizeof (sprs64)); |
379 | memcpy (&context->msr, &sprs64, sizeof(sprs64)); | |
380 | } | |
381 | else | |
382 | { | |
383 | if (!ptrace32 (PTT_READ_SPRS, tid, (int *) &sprs32, 0, NULL)) | |
384 | memset (&sprs32, 0, sizeof (sprs32)); | |
385 | memcpy (&context->msr, &sprs32, sizeof(sprs32)); | |
386 | } | |
387 | } | |
388 | return 0; | |
389 | } | |
390 | ||
0fe7bf7b MS |
391 | /* Write register function should be able to write requested context |
392 | information to specified debuggee's kernel thread id. | |
393 | If successful return 0, else non-zero is returned. */ | |
394 | ||
c11d79f2 KB |
395 | static int |
396 | pdc_write_regs (pthdb_user_t user, | |
397 | pthdb_tid_t tid, | |
398 | unsigned long long flags, | |
399 | pthdb_context_t *context) | |
400 | { | |
0fe7bf7b MS |
401 | /* This function doesn't appear to be used, so we could probably |
402 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
403 | complain and several thread debug functions will fail. In case | |
404 | this is needed, I have implemented what I think it should do, | |
405 | however this code is untested. */ | |
c11d79f2 | 406 | |
8e2c28d4 | 407 | if (debug_aix_thread) |
27bae383 | 408 | fprintf_unfiltered (gdb_stdlog, "pdc_write_regs tid=%d flags=%s\n", |
bb599908 | 409 | (int) tid, hex_string (flags)); |
c11d79f2 | 410 | |
0fe7bf7b | 411 | /* General-purpose registers. */ |
c11d79f2 KB |
412 | if (flags & PTHDB_FLAG_GPRS) |
413 | { | |
414 | if (arch64) | |
0fe7bf7b | 415 | ptrace64aix (PTT_WRITE_GPRS, tid, |
206d3d3c | 416 | (unsigned long) context->gpr, 0, NULL); |
c11d79f2 | 417 | else |
206d3d3c | 418 | ptrace32 (PTT_WRITE_GPRS, tid, (int *) context->gpr, 0, NULL); |
c11d79f2 KB |
419 | } |
420 | ||
0fe7bf7b | 421 | /* Floating-point registers. */ |
c11d79f2 KB |
422 | if (flags & PTHDB_FLAG_FPRS) |
423 | { | |
206d3d3c | 424 | ptrace32 (PTT_WRITE_FPRS, tid, (int *) context->fpr, 0, NULL); |
c11d79f2 KB |
425 | } |
426 | ||
0fe7bf7b | 427 | /* Special-purpose registers. */ |
c11d79f2 KB |
428 | if (flags & PTHDB_FLAG_SPRS) |
429 | { | |
430 | if (arch64) | |
431 | { | |
0fe7bf7b MS |
432 | ptrace64aix (PTT_WRITE_SPRS, tid, |
433 | (unsigned long) &context->msr, 0, NULL); | |
c11d79f2 KB |
434 | } |
435 | else | |
436 | { | |
206d3d3c | 437 | ptrace32 (PTT_WRITE_SPRS, tid, (int *) &context->msr, 0, NULL); |
c11d79f2 KB |
438 | } |
439 | } | |
440 | return 0; | |
441 | } | |
442 | ||
0fe7bf7b | 443 | /* pthdb callback: read LEN bytes from process ADDR into BUF. */ |
c11d79f2 KB |
444 | |
445 | static int | |
0fe7bf7b MS |
446 | pdc_read_data (pthdb_user_t user, void *buf, |
447 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
448 | { |
449 | int status, ret; | |
450 | ||
8e2c28d4 KB |
451 | if (debug_aix_thread) |
452 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 453 | "pdc_read_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 454 | user, (long) buf, hex_string (addr), len); |
c11d79f2 KB |
455 | |
456 | status = target_read_memory (addr, buf, len); | |
457 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; | |
458 | ||
8e2c28d4 | 459 | if (debug_aix_thread) |
27bae383 | 460 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", |
0fe7bf7b | 461 | status, pd_status2str (ret)); |
c11d79f2 KB |
462 | return ret; |
463 | } | |
464 | ||
0fe7bf7b | 465 | /* pthdb callback: write LEN bytes from BUF to process ADDR. */ |
c11d79f2 KB |
466 | |
467 | static int | |
0fe7bf7b MS |
468 | pdc_write_data (pthdb_user_t user, void *buf, |
469 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
470 | { |
471 | int status, ret; | |
472 | ||
8e2c28d4 KB |
473 | if (debug_aix_thread) |
474 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 475 | "pdc_write_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 476 | user, (long) buf, hex_string (addr), len); |
c11d79f2 KB |
477 | |
478 | status = target_write_memory (addr, buf, len); | |
479 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; | |
480 | ||
8e2c28d4 | 481 | if (debug_aix_thread) |
27bae383 | 482 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", status, |
8e2c28d4 | 483 | pd_status2str (ret)); |
c11d79f2 KB |
484 | return ret; |
485 | } | |
486 | ||
0fe7bf7b MS |
487 | /* pthdb callback: allocate a LEN-byte buffer and store a pointer to it |
488 | in BUFP. */ | |
c11d79f2 KB |
489 | |
490 | static int | |
491 | pdc_alloc (pthdb_user_t user, size_t len, void **bufp) | |
492 | { | |
8e2c28d4 KB |
493 | if (debug_aix_thread) |
494 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 495 | "pdc_alloc (user = %ld, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 496 | user, len, (long) bufp); |
c11d79f2 | 497 | *bufp = xmalloc (len); |
8e2c28d4 | 498 | if (debug_aix_thread) |
0fe7bf7b | 499 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 500 | " malloc returned 0x%lx\n", (long) *bufp); |
0fe7bf7b MS |
501 | |
502 | /* Note: xmalloc() can't return 0; therefore PDC_FAILURE will never | |
503 | be returned. */ | |
504 | ||
c11d79f2 KB |
505 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
506 | } | |
507 | ||
0fe7bf7b MS |
508 | /* pthdb callback: reallocate BUF, which was allocated by the alloc or |
509 | realloc callback, so that it contains LEN bytes, and store a | |
510 | pointer to the result in BUFP. */ | |
c11d79f2 KB |
511 | |
512 | static int | |
513 | pdc_realloc (pthdb_user_t user, void *buf, size_t len, void **bufp) | |
514 | { | |
8e2c28d4 KB |
515 | if (debug_aix_thread) |
516 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 517 | "pdc_realloc (user = %ld, buf = 0x%lx, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 518 | user, (long) buf, len, (long) bufp); |
be006b8b | 519 | *bufp = xrealloc (buf, len); |
8e2c28d4 | 520 | if (debug_aix_thread) |
0fe7bf7b | 521 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 522 | " realloc returned 0x%lx\n", (long) *bufp); |
c11d79f2 KB |
523 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
524 | } | |
525 | ||
0fe7bf7b MS |
526 | /* pthdb callback: free BUF, which was allocated by the alloc or |
527 | realloc callback. */ | |
c11d79f2 KB |
528 | |
529 | static int | |
530 | pdc_dealloc (pthdb_user_t user, void *buf) | |
531 | { | |
8e2c28d4 | 532 | if (debug_aix_thread) |
0fe7bf7b | 533 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 534 | "pdc_free (user = %ld, buf = 0x%lx)\n", user, |
8e2c28d4 | 535 | (long) buf); |
c11d79f2 KB |
536 | xfree (buf); |
537 | return PDC_SUCCESS; | |
538 | } | |
539 | ||
0fe7bf7b | 540 | /* Return a printable representation of pthread STATE. */ |
c11d79f2 KB |
541 | |
542 | static char * | |
543 | state2str (pthdb_state_t state) | |
544 | { | |
545 | switch (state) | |
546 | { | |
edefbb7c AC |
547 | case PST_IDLE: |
548 | /* i18n: Like "Thread-Id %d, [state] idle" */ | |
549 | return _("idle"); /* being created */ | |
550 | case PST_RUN: | |
551 | /* i18n: Like "Thread-Id %d, [state] running" */ | |
552 | return _("running"); /* running */ | |
553 | case PST_SLEEP: | |
554 | /* i18n: Like "Thread-Id %d, [state] sleeping" */ | |
555 | return _("sleeping"); /* awaiting an event */ | |
556 | case PST_READY: | |
557 | /* i18n: Like "Thread-Id %d, [state] ready" */ | |
558 | return _("ready"); /* runnable */ | |
559 | case PST_TERM: | |
560 | /* i18n: Like "Thread-Id %d, [state] finished" */ | |
561 | return _("finished"); /* awaiting a join/detach */ | |
562 | default: | |
563 | /* i18n: Like "Thread-Id %d, [state] unknown" */ | |
564 | return _("unknown"); | |
c11d79f2 KB |
565 | } |
566 | } | |
567 | ||
0fe7bf7b | 568 | /* qsort() comparison function for sorting pd_thread structs by pthid. */ |
c11d79f2 KB |
569 | |
570 | static int | |
571 | pcmp (const void *p1v, const void *p2v) | |
572 | { | |
573 | struct pd_thread *p1 = (struct pd_thread *) p1v; | |
574 | struct pd_thread *p2 = (struct pd_thread *) p2v; | |
575 | return p1->pthid < p2->pthid ? -1 : p1->pthid > p2->pthid; | |
576 | } | |
577 | ||
0fe7bf7b | 578 | /* iterate_over_threads() callback for counting GDB threads. */ |
c11d79f2 KB |
579 | |
580 | static int | |
581 | giter_count (struct thread_info *thread, void *countp) | |
582 | { | |
583 | (*(int *) countp)++; | |
584 | return 0; | |
585 | } | |
586 | ||
0fe7bf7b | 587 | /* iterate_over_threads() callback for accumulating GDB thread pids. */ |
c11d79f2 KB |
588 | |
589 | static int | |
590 | giter_accum (struct thread_info *thread, void *bufp) | |
591 | { | |
592 | **(struct thread_info ***) bufp = thread; | |
593 | (*(struct thread_info ***) bufp)++; | |
594 | return 0; | |
595 | } | |
596 | ||
597 | /* ptid comparison function */ | |
0fe7bf7b | 598 | |
c11d79f2 KB |
599 | static int |
600 | ptid_cmp (ptid_t ptid1, ptid_t ptid2) | |
601 | { | |
602 | int pid1, pid2; | |
603 | ||
604 | if (ptid_get_pid (ptid1) < ptid_get_pid (ptid2)) | |
605 | return -1; | |
606 | else if (ptid_get_pid (ptid1) > ptid_get_pid (ptid2)) | |
607 | return 1; | |
608 | else if (ptid_get_tid (ptid1) < ptid_get_tid (ptid2)) | |
609 | return -1; | |
610 | else if (ptid_get_tid (ptid1) > ptid_get_tid (ptid2)) | |
611 | return 1; | |
612 | else if (ptid_get_lwp (ptid1) < ptid_get_lwp (ptid2)) | |
613 | return -1; | |
614 | else if (ptid_get_lwp (ptid1) > ptid_get_lwp (ptid2)) | |
615 | return 1; | |
616 | else | |
617 | return 0; | |
618 | } | |
619 | ||
0fe7bf7b | 620 | /* qsort() comparison function for sorting thread_info structs by pid. */ |
c11d79f2 KB |
621 | |
622 | static int | |
623 | gcmp (const void *t1v, const void *t2v) | |
624 | { | |
625 | struct thread_info *t1 = *(struct thread_info **) t1v; | |
626 | struct thread_info *t2 = *(struct thread_info **) t2v; | |
627 | return ptid_cmp (t1->ptid, t2->ptid); | |
628 | } | |
629 | ||
9ad7bec7 JB |
630 | /* Search through the list of all kernel threads for the thread |
631 | that has stopped on a SIGTRAP signal, and return its TID. | |
632 | Return 0 if none found. */ | |
633 | ||
634 | static pthdb_tid_t | |
635 | get_signaled_thread (void) | |
636 | { | |
637 | struct thrdsinfo64 thrinf; | |
638 | pthdb_tid_t ktid = 0; | |
639 | int result = 0; | |
640 | ||
641 | /* getthrds(3) isn't prototyped in any AIX 4.3.3 #include file. */ | |
642 | extern int getthrds (pid_t, struct thrdsinfo64 *, | |
643 | int, pthdb_tid_t *, int); | |
644 | ||
645 | while (1) | |
646 | { | |
647 | if (getthrds (PIDGET (inferior_ptid), &thrinf, | |
648 | sizeof (thrinf), &ktid, 1) != 1) | |
649 | break; | |
650 | ||
651 | if (thrinf.ti_cursig == SIGTRAP) | |
652 | return thrinf.ti_tid; | |
653 | } | |
654 | ||
655 | /* Didn't find any thread stopped on a SIGTRAP signal. */ | |
656 | return 0; | |
657 | } | |
658 | ||
c11d79f2 KB |
659 | /* Synchronize GDB's thread list with libpthdebug's. |
660 | ||
661 | There are some benefits of doing this every time the inferior stops: | |
662 | ||
0fe7bf7b MS |
663 | - allows users to run thread-specific commands without needing to |
664 | run "info threads" first | |
c11d79f2 KB |
665 | |
666 | - helps pthdb_tid_pthread() work properly (see "libpthdebug | |
667 | peculiarities" at the top of this module) | |
668 | ||
0fe7bf7b MS |
669 | - simplifies the demands placed on libpthdebug, which seems to |
670 | have difficulty with certain call patterns */ | |
c11d79f2 KB |
671 | |
672 | static void | |
673 | sync_threadlists (void) | |
674 | { | |
675 | int cmd, status, infpid; | |
676 | int pcount, psize, pi, gcount, gi; | |
677 | struct pd_thread *pbuf; | |
678 | struct thread_info **gbuf, **g, *thread; | |
679 | pthdb_pthread_t pdtid; | |
680 | pthread_t pthid; | |
681 | pthdb_tid_t tid; | |
c11d79f2 | 682 | |
0fe7bf7b | 683 | /* Accumulate an array of libpthdebug threads sorted by pthread id. */ |
c11d79f2 KB |
684 | |
685 | pcount = 0; | |
686 | psize = 1; | |
687 | pbuf = (struct pd_thread *) xmalloc (psize * sizeof *pbuf); | |
688 | ||
689 | for (cmd = PTHDB_LIST_FIRST;; cmd = PTHDB_LIST_NEXT) | |
690 | { | |
691 | status = pthdb_pthread (pd_session, &pdtid, cmd); | |
692 | if (status != PTHDB_SUCCESS || pdtid == PTHDB_INVALID_PTHREAD) | |
693 | break; | |
694 | ||
695 | status = pthdb_pthread_ptid (pd_session, pdtid, &pthid); | |
696 | if (status != PTHDB_SUCCESS || pthid == PTHDB_INVALID_PTID) | |
697 | continue; | |
698 | ||
699 | if (pcount == psize) | |
700 | { | |
701 | psize *= 2; | |
0fe7bf7b MS |
702 | pbuf = (struct pd_thread *) xrealloc (pbuf, |
703 | psize * sizeof *pbuf); | |
c11d79f2 KB |
704 | } |
705 | pbuf[pcount].pdtid = pdtid; | |
706 | pbuf[pcount].pthid = pthid; | |
707 | pcount++; | |
708 | } | |
709 | ||
710 | for (pi = 0; pi < pcount; pi++) | |
711 | { | |
712 | status = pthdb_pthread_tid (pd_session, pbuf[pi].pdtid, &tid); | |
713 | if (status != PTHDB_SUCCESS) | |
714 | tid = PTHDB_INVALID_TID; | |
715 | pbuf[pi].tid = tid; | |
716 | } | |
717 | ||
718 | qsort (pbuf, pcount, sizeof *pbuf, pcmp); | |
719 | ||
0fe7bf7b | 720 | /* Accumulate an array of GDB threads sorted by pid. */ |
c11d79f2 KB |
721 | |
722 | gcount = 0; | |
723 | iterate_over_threads (giter_count, &gcount); | |
724 | g = gbuf = (struct thread_info **) xmalloc (gcount * sizeof *gbuf); | |
725 | iterate_over_threads (giter_accum, &g); | |
726 | qsort (gbuf, gcount, sizeof *gbuf, gcmp); | |
727 | ||
0fe7bf7b | 728 | /* Apply differences between the two arrays to GDB's thread list. */ |
c11d79f2 KB |
729 | |
730 | infpid = PIDGET (inferior_ptid); | |
731 | for (pi = gi = 0; pi < pcount || gi < gcount;) | |
732 | { | |
c11d79f2 | 733 | if (pi == pcount) |
c11d79f2 | 734 | { |
42cc437f | 735 | delete_thread (gbuf[gi]->ptid); |
c11d79f2 KB |
736 | gi++; |
737 | } | |
42cc437f | 738 | else if (gi == gcount) |
c11d79f2 | 739 | { |
42cc437f | 740 | thread = add_thread (BUILD_THREAD (pbuf[pi].pthid, infpid)); |
c11d79f2 | 741 | thread->private = xmalloc (sizeof (struct private_thread_info)); |
42cc437f KB |
742 | thread->private->pdtid = pbuf[pi].pdtid; |
743 | thread->private->tid = pbuf[pi].tid; | |
c11d79f2 KB |
744 | pi++; |
745 | } | |
42cc437f KB |
746 | else |
747 | { | |
748 | ptid_t pptid, gptid; | |
749 | int cmp_result; | |
750 | ||
751 | pptid = BUILD_THREAD (pbuf[pi].pthid, infpid); | |
752 | gptid = gbuf[gi]->ptid; | |
753 | pdtid = pbuf[pi].pdtid; | |
754 | tid = pbuf[pi].tid; | |
c11d79f2 | 755 | |
42cc437f KB |
756 | cmp_result = ptid_cmp (pptid, gptid); |
757 | ||
758 | if (cmp_result == 0) | |
759 | { | |
760 | gbuf[gi]->private->pdtid = pdtid; | |
761 | gbuf[gi]->private->tid = tid; | |
762 | pi++; | |
763 | gi++; | |
764 | } | |
765 | else if (cmp_result > 0) | |
766 | { | |
767 | delete_thread (gptid); | |
768 | gi++; | |
769 | } | |
770 | else | |
771 | { | |
772 | thread = add_thread (pptid); | |
773 | thread->private = xmalloc (sizeof (struct private_thread_info)); | |
774 | thread->private->pdtid = pdtid; | |
775 | thread->private->tid = tid; | |
776 | pi++; | |
777 | } | |
778 | } | |
c11d79f2 KB |
779 | } |
780 | ||
781 | xfree (pbuf); | |
782 | xfree (gbuf); | |
783 | } | |
784 | ||
9ad7bec7 JB |
785 | /* Iterate_over_threads() callback for locating a thread, using |
786 | the TID of its associated kernel thread. */ | |
c11d79f2 KB |
787 | |
788 | static int | |
9ad7bec7 | 789 | iter_tid (struct thread_info *thread, void *tidp) |
c11d79f2 | 790 | { |
9ad7bec7 | 791 | const pthdb_tid_t tid = *(pthdb_tid_t *)tidp; |
c11d79f2 | 792 | |
9ad7bec7 | 793 | return (thread->private->tid == tid); |
c11d79f2 KB |
794 | } |
795 | ||
0fe7bf7b MS |
796 | /* Synchronize libpthdebug's state with the inferior and with GDB, |
797 | generate a composite process/thread <pid> for the current thread, | |
798 | set inferior_ptid to <pid> if SET_INFPID, and return <pid>. */ | |
c11d79f2 KB |
799 | |
800 | static ptid_t | |
801 | pd_update (int set_infpid) | |
802 | { | |
803 | int status; | |
804 | ptid_t ptid; | |
9ad7bec7 JB |
805 | pthdb_tid_t tid; |
806 | struct thread_info *thread = NULL; | |
c11d79f2 KB |
807 | |
808 | if (!pd_active) | |
809 | return inferior_ptid; | |
810 | ||
811 | status = pthdb_session_update (pd_session); | |
812 | if (status != PTHDB_SUCCESS) | |
813 | return inferior_ptid; | |
814 | ||
815 | sync_threadlists (); | |
816 | ||
0fe7bf7b | 817 | /* Define "current thread" as one that just received a trap signal. */ |
c11d79f2 | 818 | |
9ad7bec7 JB |
819 | tid = get_signaled_thread (); |
820 | if (tid != 0) | |
821 | thread = iterate_over_threads (iter_tid, &tid); | |
c11d79f2 KB |
822 | if (!thread) |
823 | ptid = inferior_ptid; | |
824 | else | |
825 | { | |
826 | ptid = thread->ptid; | |
827 | if (set_infpid) | |
828 | inferior_ptid = ptid; | |
829 | } | |
830 | return ptid; | |
831 | } | |
832 | ||
0fe7bf7b MS |
833 | /* Try to start debugging threads in the current process. |
834 | If successful and SET_INFPID, set inferior_ptid to reflect the | |
835 | current thread. */ | |
c11d79f2 KB |
836 | |
837 | static ptid_t | |
838 | pd_activate (int set_infpid) | |
839 | { | |
840 | int status; | |
841 | ||
842 | status = pthdb_session_init (PD_USER, arch64 ? PEM_64BIT : PEM_32BIT, | |
0fe7bf7b MS |
843 | PTHDB_FLAG_REGS, &pd_callbacks, |
844 | &pd_session); | |
c11d79f2 KB |
845 | if (status != PTHDB_SUCCESS) |
846 | { | |
847 | return inferior_ptid; | |
848 | } | |
849 | pd_active = 1; | |
850 | return pd_update (set_infpid); | |
851 | } | |
852 | ||
0fe7bf7b | 853 | /* Undo the effects of pd_activate(). */ |
c11d79f2 KB |
854 | |
855 | static void | |
856 | pd_deactivate (void) | |
857 | { | |
858 | if (!pd_active) | |
859 | return; | |
860 | pthdb_session_destroy (pd_session); | |
861 | ||
862 | pid_to_prc (&inferior_ptid); | |
863 | pd_active = 0; | |
864 | } | |
865 | ||
0fe7bf7b MS |
866 | /* An object file has just been loaded. Check whether the current |
867 | application is pthreaded, and if so, prepare for thread debugging. */ | |
c11d79f2 KB |
868 | |
869 | static void | |
870 | pd_enable (void) | |
871 | { | |
872 | int status; | |
873 | char *stub_name; | |
874 | struct minimal_symbol *ms; | |
875 | ||
0fe7bf7b | 876 | /* Don't initialize twice. */ |
c11d79f2 KB |
877 | if (pd_able) |
878 | return; | |
879 | ||
0fe7bf7b | 880 | /* Check application word size. */ |
3acba339 | 881 | arch64 = register_size (current_gdbarch, 0) == 8; |
c11d79f2 | 882 | |
0fe7bf7b | 883 | /* Check whether the application is pthreaded. */ |
c11d79f2 | 884 | stub_name = NULL; |
0fe7bf7b MS |
885 | status = pthdb_session_pthreaded (PD_USER, PTHDB_FLAG_REGS, |
886 | &pd_callbacks, &stub_name); | |
887 | if ((status != PTHDB_SUCCESS && | |
888 | status != PTHDB_NOT_PTHREADED) || !stub_name) | |
c11d79f2 KB |
889 | return; |
890 | ||
0fe7bf7b | 891 | /* Set a breakpoint on the returned stub function. */ |
c11d79f2 KB |
892 | if (!(ms = lookup_minimal_symbol (stub_name, NULL, NULL))) |
893 | return; | |
894 | pd_brk_addr = SYMBOL_VALUE_ADDRESS (ms); | |
895 | if (!create_thread_event_breakpoint (pd_brk_addr)) | |
896 | return; | |
897 | ||
0fe7bf7b | 898 | /* Prepare for thread debugging. */ |
206d3d3c KB |
899 | base_target = current_target; |
900 | push_target (&aix_thread_ops); | |
c11d79f2 KB |
901 | pd_able = 1; |
902 | ||
0fe7bf7b MS |
903 | /* If we're debugging a core file or an attached inferior, the |
904 | pthread library may already have been initialized, so try to | |
905 | activate thread debugging. */ | |
c11d79f2 KB |
906 | pd_activate (1); |
907 | } | |
908 | ||
0fe7bf7b | 909 | /* Undo the effects of pd_enable(). */ |
c11d79f2 KB |
910 | |
911 | static void | |
912 | pd_disable (void) | |
913 | { | |
914 | if (!pd_able) | |
915 | return; | |
916 | if (pd_active) | |
917 | pd_deactivate (); | |
918 | pd_able = 0; | |
206d3d3c | 919 | unpush_target (&aix_thread_ops); |
c11d79f2 KB |
920 | } |
921 | ||
06d3b283 | 922 | /* new_objfile observer callback. |
c11d79f2 | 923 | |
0fe7bf7b MS |
924 | If OBJFILE is non-null, check whether a threaded application is |
925 | being debugged, and if so, prepare for thread debugging. | |
c11d79f2 | 926 | |
0fe7bf7b | 927 | If OBJFILE is null, stop debugging threads. */ |
c11d79f2 KB |
928 | |
929 | static void | |
930 | new_objfile (struct objfile *objfile) | |
931 | { | |
932 | if (objfile) | |
933 | pd_enable (); | |
934 | else | |
935 | pd_disable (); | |
c11d79f2 KB |
936 | } |
937 | ||
0fe7bf7b | 938 | /* Attach to process specified by ARGS. */ |
c11d79f2 KB |
939 | |
940 | static void | |
206d3d3c | 941 | aix_thread_attach (char *args, int from_tty) |
c11d79f2 | 942 | { |
206d3d3c | 943 | base_target.to_attach (args, from_tty); |
c11d79f2 KB |
944 | pd_activate (1); |
945 | } | |
946 | ||
206d3d3c | 947 | /* Detach from the process attached to by aix_thread_attach(). */ |
c11d79f2 KB |
948 | |
949 | static void | |
206d3d3c | 950 | aix_thread_detach (char *args, int from_tty) |
c11d79f2 | 951 | { |
6c0c456d | 952 | pd_disable (); |
206d3d3c | 953 | base_target.to_detach (args, from_tty); |
c11d79f2 KB |
954 | } |
955 | ||
956 | /* Tell the inferior process to continue running thread PID if != -1 | |
0fe7bf7b | 957 | and all threads otherwise. */ |
c11d79f2 KB |
958 | |
959 | static void | |
206d3d3c | 960 | aix_thread_resume (ptid_t ptid, int step, enum target_signal sig) |
c11d79f2 KB |
961 | { |
962 | struct thread_info *thread; | |
963 | pthdb_tid_t tid[2]; | |
964 | ||
965 | if (!PD_TID (ptid)) | |
14fa3751 KB |
966 | { |
967 | struct cleanup *cleanup = save_inferior_ptid (); | |
968 | inferior_ptid = pid_to_ptid (PIDGET (inferior_ptid)); | |
206d3d3c | 969 | base_target.to_resume (ptid, step, sig); |
14fa3751 KB |
970 | do_cleanups (cleanup); |
971 | } | |
c11d79f2 KB |
972 | else |
973 | { | |
974 | thread = find_thread_pid (ptid); | |
975 | if (!thread) | |
edefbb7c | 976 | error (_("aix-thread resume: unknown pthread %ld"), |
0fe7bf7b | 977 | TIDGET (ptid)); |
c11d79f2 KB |
978 | |
979 | tid[0] = thread->private->tid; | |
980 | if (tid[0] == PTHDB_INVALID_TID) | |
edefbb7c | 981 | error (_("aix-thread resume: no tid for pthread %ld"), |
0fe7bf7b | 982 | TIDGET (ptid)); |
c11d79f2 KB |
983 | tid[1] = 0; |
984 | ||
985 | if (arch64) | |
0fe7bf7b | 986 | ptrace64aix (PTT_CONTINUE, tid[0], 1, |
206d3d3c | 987 | target_signal_to_host (sig), (int *) tid); |
c11d79f2 KB |
988 | else |
989 | ptrace32 (PTT_CONTINUE, tid[0], (int *) 1, | |
206d3d3c | 990 | target_signal_to_host (sig), (int *) tid); |
c11d79f2 KB |
991 | } |
992 | } | |
993 | ||
0fe7bf7b MS |
994 | /* Wait for thread/process ID if != -1 or for any thread otherwise. |
995 | If an error occurs, return -1, else return the pid of the stopped | |
996 | thread. */ | |
c11d79f2 KB |
997 | |
998 | static ptid_t | |
206d3d3c | 999 | aix_thread_wait (ptid_t ptid, struct target_waitstatus *status) |
c11d79f2 | 1000 | { |
14fa3751 KB |
1001 | struct cleanup *cleanup = save_inferior_ptid (); |
1002 | ||
c11d79f2 | 1003 | pid_to_prc (&ptid); |
14fa3751 KB |
1004 | |
1005 | inferior_ptid = pid_to_ptid (PIDGET (inferior_ptid)); | |
206d3d3c | 1006 | ptid = base_target.to_wait (ptid, status); |
14fa3751 KB |
1007 | do_cleanups (cleanup); |
1008 | ||
c11d79f2 KB |
1009 | if (PIDGET (ptid) == -1) |
1010 | return pid_to_ptid (-1); | |
1011 | ||
0fe7bf7b | 1012 | /* Check whether libpthdebug might be ready to be initialized. */ |
c11d79f2 | 1013 | if (!pd_active && status->kind == TARGET_WAITKIND_STOPPED && |
b798847d UW |
1014 | status->value.sig == TARGET_SIGNAL_TRAP |
1015 | && read_pc_pid (ptid) | |
1016 | - gdbarch_decr_pc_after_break (current_gdbarch) == pd_brk_addr) | |
c11d79f2 KB |
1017 | return pd_activate (0); |
1018 | ||
1019 | return pd_update (0); | |
1020 | } | |
1021 | ||
0fe7bf7b | 1022 | /* Record that the 64-bit general-purpose registers contain VALS. */ |
c11d79f2 KB |
1023 | |
1024 | static void | |
647478e0 | 1025 | supply_gprs64 (struct regcache *regcache, uint64_t *vals) |
c11d79f2 | 1026 | { |
c7f30c7a | 1027 | struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache)); |
c11d79f2 KB |
1028 | int regno; |
1029 | ||
063715bf | 1030 | for (regno = 0; regno < ppc_num_gprs; regno++) |
647478e0 | 1031 | regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + regno, |
23a6d369 | 1032 | (char *) (vals + regno)); |
c11d79f2 KB |
1033 | } |
1034 | ||
0fe7bf7b | 1035 | /* Record that 32-bit register REGNO contains VAL. */ |
c11d79f2 KB |
1036 | |
1037 | static void | |
647478e0 | 1038 | supply_reg32 (struct regcache *regcache, int regno, uint32_t val) |
c11d79f2 | 1039 | { |
647478e0 | 1040 | regcache_raw_supply (regcache, regno, (char *) &val); |
c11d79f2 KB |
1041 | } |
1042 | ||
0fe7bf7b | 1043 | /* Record that the floating-point registers contain VALS. */ |
c11d79f2 KB |
1044 | |
1045 | static void | |
647478e0 | 1046 | supply_fprs (struct regcache *regcache, double *vals) |
c11d79f2 | 1047 | { |
c7f30c7a UW |
1048 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1049 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
c11d79f2 KB |
1050 | int regno; |
1051 | ||
383f0f5b JB |
1052 | /* This function should never be called on architectures without |
1053 | floating-point registers. */ | |
c7f30c7a | 1054 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1055 | |
063715bf | 1056 | for (regno = 0; regno < ppc_num_fprs; regno++) |
647478e0 | 1057 | regcache_raw_supply (regcache, regno + tdep->ppc_fp0_regnum, |
23a6d369 | 1058 | (char *) (vals + regno)); |
c11d79f2 KB |
1059 | } |
1060 | ||
f1a91342 KB |
1061 | /* Predicate to test whether given register number is a "special" register. */ |
1062 | static int | |
9970f04b | 1063 | special_register_p (struct gdbarch *gdbarch, int regno) |
f1a91342 | 1064 | { |
9970f04b | 1065 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1066 | |
9970f04b | 1067 | return regno == gdbarch_pc_regnum (gdbarch) |
f1a91342 KB |
1068 | || regno == tdep->ppc_ps_regnum |
1069 | || regno == tdep->ppc_cr_regnum | |
1070 | || regno == tdep->ppc_lr_regnum | |
1071 | || regno == tdep->ppc_ctr_regnum | |
1072 | || regno == tdep->ppc_xer_regnum | |
383f0f5b | 1073 | || (tdep->ppc_fpscr_regnum >= 0 && regno == tdep->ppc_fpscr_regnum) |
f1a91342 KB |
1074 | || (tdep->ppc_mq_regnum >= 0 && regno == tdep->ppc_mq_regnum); |
1075 | } | |
1076 | ||
1077 | ||
0fe7bf7b MS |
1078 | /* Record that the special registers contain the specified 64-bit and |
1079 | 32-bit values. */ | |
c11d79f2 KB |
1080 | |
1081 | static void | |
647478e0 UW |
1082 | supply_sprs64 (struct regcache *regcache, |
1083 | uint64_t iar, uint64_t msr, uint32_t cr, | |
0e061eef KB |
1084 | uint64_t lr, uint64_t ctr, uint32_t xer, |
1085 | uint32_t fpscr) | |
c11d79f2 | 1086 | { |
c7f30c7a UW |
1087 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1088 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 | 1089 | |
c7f30c7a | 1090 | regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch), |
3e8c568d | 1091 | (char *) &iar); |
647478e0 UW |
1092 | regcache_raw_supply (regcache, tdep->ppc_ps_regnum, (char *) &msr); |
1093 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, (char *) &cr); | |
1094 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, (char *) &lr); | |
1095 | regcache_raw_supply (regcache, tdep->ppc_ctr_regnum, (char *) &ctr); | |
1096 | regcache_raw_supply (regcache, tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1097 | if (tdep->ppc_fpscr_regnum >= 0) |
647478e0 | 1098 | regcache_raw_supply (regcache, tdep->ppc_fpscr_regnum, |
23a6d369 | 1099 | (char *) &fpscr); |
c11d79f2 KB |
1100 | } |
1101 | ||
0fe7bf7b MS |
1102 | /* Record that the special registers contain the specified 32-bit |
1103 | values. */ | |
c11d79f2 KB |
1104 | |
1105 | static void | |
647478e0 UW |
1106 | supply_sprs32 (struct regcache *regcache, |
1107 | uint32_t iar, uint32_t msr, uint32_t cr, | |
0e061eef KB |
1108 | uint32_t lr, uint32_t ctr, uint32_t xer, |
1109 | uint32_t fpscr) | |
c11d79f2 | 1110 | { |
c7f30c7a UW |
1111 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1112 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 | 1113 | |
c7f30c7a | 1114 | regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch), |
3e8c568d | 1115 | (char *) &iar); |
647478e0 UW |
1116 | regcache_raw_supply (regcache, tdep->ppc_ps_regnum, (char *) &msr); |
1117 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, (char *) &cr); | |
1118 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, (char *) &lr); | |
1119 | regcache_raw_supply (regcache, tdep->ppc_ctr_regnum, (char *) &ctr); | |
1120 | regcache_raw_supply (regcache, tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1121 | if (tdep->ppc_fpscr_regnum >= 0) |
647478e0 | 1122 | regcache_raw_supply (regcache, tdep->ppc_fpscr_regnum, |
23a6d369 | 1123 | (char *) &fpscr); |
c11d79f2 KB |
1124 | } |
1125 | ||
1126 | /* Fetch all registers from pthread PDTID, which doesn't have a kernel | |
1127 | thread. | |
1128 | ||
0fe7bf7b MS |
1129 | There's no way to query a single register from a non-kernel |
1130 | pthread, so there's no need for a single-register version of this | |
1131 | function. */ | |
c11d79f2 KB |
1132 | |
1133 | static void | |
647478e0 | 1134 | fetch_regs_user_thread (struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1135 | { |
c7f30c7a UW |
1136 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1137 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
c11d79f2 KB |
1138 | int status, i; |
1139 | pthdb_context_t ctx; | |
1140 | ||
8e2c28d4 | 1141 | if (debug_aix_thread) |
206d3d3c KB |
1142 | fprintf_unfiltered (gdb_stdlog, |
1143 | "fetch_regs_user_thread %lx\n", (long) pdtid); | |
c11d79f2 KB |
1144 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1145 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1146 | error (_("aix-thread: fetch_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1147 | pd_status2str (status)); |
c11d79f2 | 1148 | |
0fe7bf7b | 1149 | /* General-purpose registers. */ |
c11d79f2 KB |
1150 | |
1151 | if (arch64) | |
647478e0 | 1152 | supply_gprs64 (regcache, ctx.gpr); |
c11d79f2 | 1153 | else |
063715bf | 1154 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1155 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, ctx.gpr[i]); |
c11d79f2 | 1156 | |
0fe7bf7b | 1157 | /* Floating-point registers. */ |
c11d79f2 | 1158 | |
c7f30c7a | 1159 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1160 | supply_fprs (regcache, ctx.fpr); |
c11d79f2 | 1161 | |
0fe7bf7b | 1162 | /* Special registers. */ |
c11d79f2 KB |
1163 | |
1164 | if (arch64) | |
647478e0 UW |
1165 | supply_sprs64 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1166 | ctx.xer, ctx.fpscr); | |
c11d79f2 | 1167 | else |
647478e0 UW |
1168 | supply_sprs32 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1169 | ctx.xer, ctx.fpscr); | |
c11d79f2 KB |
1170 | } |
1171 | ||
0fe7bf7b MS |
1172 | /* Fetch register REGNO if != -1 or all registers otherwise from |
1173 | kernel thread TID. | |
c11d79f2 | 1174 | |
0fe7bf7b MS |
1175 | AIX provides a way to query all of a kernel thread's GPRs, FPRs, or |
1176 | SPRs, but there's no way to query individual registers within those | |
1177 | groups. Therefore, if REGNO != -1, this function fetches an entire | |
1178 | group. | |
c11d79f2 | 1179 | |
0fe7bf7b MS |
1180 | Unfortunately, kernel thread register queries often fail with |
1181 | EPERM, indicating that the thread is in kernel space. This breaks | |
1182 | backtraces of threads other than the current one. To make that | |
1183 | breakage obvious without throwing an error to top level (which is | |
1184 | bad e.g. during "info threads" output), zero registers that can't | |
1185 | be retrieved. */ | |
c11d79f2 KB |
1186 | |
1187 | static void | |
647478e0 UW |
1188 | fetch_regs_kernel_thread (struct regcache *regcache, int regno, |
1189 | pthdb_tid_t tid) | |
c11d79f2 | 1190 | { |
c7f30c7a UW |
1191 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1192 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
063715bf JB |
1193 | uint64_t gprs64[ppc_num_gprs]; |
1194 | uint32_t gprs32[ppc_num_gprs]; | |
1195 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
1196 | struct ptxsprs sprs64; |
1197 | struct ptsprs sprs32; | |
1198 | int i; | |
1199 | ||
8e2c28d4 KB |
1200 | if (debug_aix_thread) |
1201 | fprintf_unfiltered (gdb_stdlog, | |
206d3d3c KB |
1202 | "fetch_regs_kernel_thread tid=%lx regno=%d arch64=%d\n", |
1203 | (long) tid, regno, arch64); | |
c11d79f2 | 1204 | |
0fe7bf7b | 1205 | /* General-purpose registers. */ |
daf6dc85 JB |
1206 | if (regno == -1 |
1207 | || (tdep->ppc_gp0_regnum <= regno | |
1208 | && regno < tdep->ppc_gp0_regnum + ppc_num_gprs)) | |
c11d79f2 KB |
1209 | { |
1210 | if (arch64) | |
1211 | { | |
0fe7bf7b MS |
1212 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
1213 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 | 1214 | memset (gprs64, 0, sizeof (gprs64)); |
647478e0 | 1215 | supply_gprs64 (regcache, gprs64); |
c11d79f2 KB |
1216 | } |
1217 | else | |
1218 | { | |
1219 | if (!ptrace32 (PTT_READ_GPRS, tid, gprs32, 0, NULL)) | |
1220 | memset (gprs32, 0, sizeof (gprs32)); | |
063715bf | 1221 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1222 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, gprs32[i]); |
c11d79f2 KB |
1223 | } |
1224 | } | |
1225 | ||
0fe7bf7b | 1226 | /* Floating-point registers. */ |
c11d79f2 | 1227 | |
c7f30c7a | 1228 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1229 | && (regno == -1 |
1230 | || (regno >= tdep->ppc_fp0_regnum | |
1231 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 KB |
1232 | { |
1233 | if (!ptrace32 (PTT_READ_FPRS, tid, (int *) fprs, 0, NULL)) | |
1234 | memset (fprs, 0, sizeof (fprs)); | |
647478e0 | 1235 | supply_fprs (regcache, fprs); |
c11d79f2 KB |
1236 | } |
1237 | ||
0fe7bf7b | 1238 | /* Special-purpose registers. */ |
c11d79f2 | 1239 | |
9970f04b | 1240 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1241 | { |
1242 | if (arch64) | |
1243 | { | |
0fe7bf7b MS |
1244 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
1245 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 | 1246 | memset (&sprs64, 0, sizeof (sprs64)); |
647478e0 UW |
1247 | supply_sprs64 (regcache, sprs64.pt_iar, sprs64.pt_msr, |
1248 | sprs64.pt_cr, sprs64.pt_lr, sprs64.pt_ctr, | |
1249 | sprs64.pt_xer, sprs64.pt_fpscr); | |
c11d79f2 KB |
1250 | } |
1251 | else | |
1252 | { | |
c7f30c7a | 1253 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1254 | |
c11d79f2 KB |
1255 | if (!ptrace32 (PTT_READ_SPRS, tid, (int *) &sprs32, 0, NULL)) |
1256 | memset (&sprs32, 0, sizeof (sprs32)); | |
647478e0 | 1257 | supply_sprs32 (regcache, sprs32.pt_iar, sprs32.pt_msr, sprs32.pt_cr, |
0e061eef KB |
1258 | sprs32.pt_lr, sprs32.pt_ctr, sprs32.pt_xer, |
1259 | sprs32.pt_fpscr); | |
c11d79f2 | 1260 | |
f1a91342 | 1261 | if (tdep->ppc_mq_regnum >= 0) |
647478e0 | 1262 | regcache_raw_supply (regcache, tdep->ppc_mq_regnum, |
23a6d369 | 1263 | (char *) &sprs32.pt_mq); |
c11d79f2 KB |
1264 | } |
1265 | } | |
1266 | } | |
1267 | ||
1268 | /* Fetch register REGNO if != -1 or all registers otherwise in the | |
0fe7bf7b | 1269 | thread/process specified by inferior_ptid. */ |
c11d79f2 KB |
1270 | |
1271 | static void | |
56be3814 | 1272 | aix_thread_fetch_registers (struct regcache *regcache, int regno) |
c11d79f2 KB |
1273 | { |
1274 | struct thread_info *thread; | |
1275 | pthdb_tid_t tid; | |
1276 | ||
1277 | if (!PD_TID (inferior_ptid)) | |
56be3814 | 1278 | base_target.to_fetch_registers (regcache, regno); |
c11d79f2 KB |
1279 | else |
1280 | { | |
1281 | thread = find_thread_pid (inferior_ptid); | |
1282 | tid = thread->private->tid; | |
1283 | ||
1284 | if (tid == PTHDB_INVALID_TID) | |
56be3814 | 1285 | fetch_regs_user_thread (regcache, thread->private->pdtid); |
c11d79f2 | 1286 | else |
56be3814 | 1287 | fetch_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1288 | } |
1289 | } | |
1290 | ||
61c5da0b KB |
1291 | /* Store the gp registers into an array of uint32_t or uint64_t. */ |
1292 | ||
1293 | static void | |
647478e0 | 1294 | fill_gprs64 (const struct regcache *regcache, uint64_t *vals) |
61c5da0b | 1295 | { |
c7f30c7a | 1296 | struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache)); |
61c5da0b KB |
1297 | int regno; |
1298 | ||
daf6dc85 | 1299 | for (regno = 0; regno < ppc_num_gprs; regno++) |
647478e0 UW |
1300 | if (regcache_valid_p (regcache, tdep->ppc_gp0_regnum + regno)) |
1301 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + regno, | |
822c9732 | 1302 | vals + regno); |
61c5da0b KB |
1303 | } |
1304 | ||
1305 | static void | |
647478e0 | 1306 | fill_gprs32 (const struct regcache *regcache, uint32_t *vals) |
61c5da0b | 1307 | { |
c7f30c7a | 1308 | struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache)); |
61c5da0b KB |
1309 | int regno; |
1310 | ||
daf6dc85 | 1311 | for (regno = 0; regno < ppc_num_gprs; regno++) |
647478e0 UW |
1312 | if (regcache_valid_p (regcache, tdep->ppc_gp0_regnum + regno)) |
1313 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + regno, | |
822c9732 | 1314 | vals + regno); |
61c5da0b KB |
1315 | } |
1316 | ||
1317 | /* Store the floating point registers into a double array. */ | |
1318 | static void | |
647478e0 | 1319 | fill_fprs (const struct regcache *regcache, double *vals) |
61c5da0b | 1320 | { |
c7f30c7a UW |
1321 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1322 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
61c5da0b KB |
1323 | int regno; |
1324 | ||
383f0f5b JB |
1325 | /* This function should never be called on architectures without |
1326 | floating-point registers. */ | |
c7f30c7a | 1327 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1328 | |
366f009f JB |
1329 | for (regno = tdep->ppc_fp0_regnum; |
1330 | regno < tdep->ppc_fp0_regnum + ppc_num_fprs; | |
1331 | regno++) | |
647478e0 UW |
1332 | if (regcache_valid_p (regcache, regno)) |
1333 | regcache_raw_collect (regcache, regno, vals + regno); | |
61c5da0b KB |
1334 | } |
1335 | ||
c11d79f2 | 1336 | /* Store the special registers into the specified 64-bit and 32-bit |
0fe7bf7b | 1337 | locations. */ |
c11d79f2 KB |
1338 | |
1339 | static void | |
647478e0 UW |
1340 | fill_sprs64 (const struct regcache *regcache, |
1341 | uint64_t *iar, uint64_t *msr, uint32_t *cr, | |
0e061eef KB |
1342 | uint64_t *lr, uint64_t *ctr, uint32_t *xer, |
1343 | uint32_t *fpscr) | |
c11d79f2 | 1344 | { |
c7f30c7a UW |
1345 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1346 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 KB |
1347 | |
1348 | /* Verify that the size of the size of the IAR buffer is the | |
1349 | same as the raw size of the PC (in the register cache). If | |
1350 | they're not, then either GDB has been built incorrectly, or | |
1351 | there's some other kind of internal error. To be really safe, | |
1352 | we should check all of the sizes. */ | |
3e8c568d | 1353 | gdb_assert (sizeof (*iar) == register_size |
c7f30c7a | 1354 | (gdbarch, gdbarch_pc_regnum (gdbarch))); |
f1a91342 | 1355 | |
c7f30c7a UW |
1356 | if (regcache_valid_p (regcache, gdbarch_pc_regnum (gdbarch))) |
1357 | regcache_raw_collect (regcache, gdbarch_pc_regnum (gdbarch), iar); | |
647478e0 UW |
1358 | if (regcache_valid_p (regcache, tdep->ppc_ps_regnum)) |
1359 | regcache_raw_collect (regcache, tdep->ppc_ps_regnum, msr); | |
1360 | if (regcache_valid_p (regcache, tdep->ppc_cr_regnum)) | |
1361 | regcache_raw_collect (regcache, tdep->ppc_cr_regnum, cr); | |
1362 | if (regcache_valid_p (regcache, tdep->ppc_lr_regnum)) | |
1363 | regcache_raw_collect (regcache, tdep->ppc_lr_regnum, lr); | |
1364 | if (regcache_valid_p (regcache, tdep->ppc_ctr_regnum)) | |
1365 | regcache_raw_collect (regcache, tdep->ppc_ctr_regnum, ctr); | |
1366 | if (regcache_valid_p (regcache, tdep->ppc_xer_regnum)) | |
1367 | regcache_raw_collect (regcache, tdep->ppc_xer_regnum, xer); | |
383f0f5b | 1368 | if (tdep->ppc_fpscr_regnum >= 0 |
647478e0 UW |
1369 | && regcache_valid_p (regcache, tdep->ppc_fpscr_regnum)) |
1370 | regcache_raw_collect (regcache, tdep->ppc_fpscr_regnum, fpscr); | |
61c5da0b KB |
1371 | } |
1372 | ||
1373 | static void | |
647478e0 UW |
1374 | fill_sprs32 (const struct regcache *regcache, |
1375 | uint32_t *iar, uint32_t *msr, uint32_t *cr, | |
0d16ee5d UW |
1376 | uint32_t *lr, uint32_t *ctr, uint32_t *xer, |
1377 | uint32_t *fpscr) | |
61c5da0b | 1378 | { |
c7f30c7a UW |
1379 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1380 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 KB |
1381 | |
1382 | /* Verify that the size of the size of the IAR buffer is the | |
1383 | same as the raw size of the PC (in the register cache). If | |
1384 | they're not, then either GDB has been built incorrectly, or | |
1385 | there's some other kind of internal error. To be really safe, | |
0d16ee5d | 1386 | we should check all of the sizes. */ |
c7f30c7a UW |
1387 | gdb_assert (sizeof (*iar) == register_size (gdbarch, |
1388 | gdbarch_pc_regnum (gdbarch))); | |
f1a91342 | 1389 | |
c7f30c7a UW |
1390 | if (regcache_valid_p (regcache, gdbarch_pc_regnum (gdbarch))) |
1391 | regcache_raw_collect (regcache, gdbarch_pc_regnum (gdbarch), iar); | |
647478e0 UW |
1392 | if (regcache_valid_p (regcache, tdep->ppc_ps_regnum)) |
1393 | regcache_raw_collect (regcache, tdep->ppc_ps_regnum, msr); | |
1394 | if (regcache_valid_p (regcache, tdep->ppc_cr_regnum)) | |
1395 | regcache_raw_collect (regcache, tdep->ppc_cr_regnum, cr); | |
1396 | if (regcache_valid_p (regcache, tdep->ppc_lr_regnum)) | |
1397 | regcache_raw_collect (regcache, tdep->ppc_lr_regnum, lr); | |
1398 | if (regcache_valid_p (regcache, tdep->ppc_ctr_regnum)) | |
1399 | regcache_raw_collect (regcache, tdep->ppc_ctr_regnum, ctr); | |
1400 | if (regcache_valid_p (regcache, tdep->ppc_xer_regnum)) | |
1401 | regcache_raw_collect (regcache, tdep->ppc_xer_regnum, xer); | |
383f0f5b | 1402 | if (tdep->ppc_fpscr_regnum >= 0 |
647478e0 UW |
1403 | && regcache_valid_p (regcache, tdep->ppc_fpscr_regnum)) |
1404 | regcache_raw_collect (regcache, tdep->ppc_fpscr_regnum, fpscr); | |
c11d79f2 KB |
1405 | } |
1406 | ||
1407 | /* Store all registers into pthread PDTID, which doesn't have a kernel | |
1408 | thread. | |
1409 | ||
0fe7bf7b MS |
1410 | It's possible to store a single register into a non-kernel pthread, |
1411 | but I doubt it's worth the effort. */ | |
c11d79f2 KB |
1412 | |
1413 | static void | |
647478e0 | 1414 | store_regs_user_thread (const struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1415 | { |
c7f30c7a UW |
1416 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1417 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
c11d79f2 KB |
1418 | int status, i; |
1419 | pthdb_context_t ctx; | |
61c5da0b KB |
1420 | uint32_t int32; |
1421 | uint64_t int64; | |
1422 | double dbl; | |
c11d79f2 | 1423 | |
8e2c28d4 | 1424 | if (debug_aix_thread) |
0fe7bf7b | 1425 | fprintf_unfiltered (gdb_stdlog, |
206d3d3c | 1426 | "store_regs_user_thread %lx\n", (long) pdtid); |
c11d79f2 | 1427 | |
0fe7bf7b MS |
1428 | /* Retrieve the thread's current context for its non-register |
1429 | values. */ | |
c11d79f2 KB |
1430 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1431 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1432 | error (_("aix-thread: store_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1433 | pd_status2str (status)); |
c11d79f2 | 1434 | |
61c5da0b | 1435 | /* Collect general-purpose register values from the regcache. */ |
c11d79f2 | 1436 | |
063715bf | 1437 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1438 | if (regcache_valid_p (regcache, tdep->ppc_gp0_regnum + i)) |
cbe92db4 KB |
1439 | { |
1440 | if (arch64) | |
1441 | { | |
647478e0 | 1442 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + i, |
822c9732 | 1443 | (void *) &int64); |
cbe92db4 KB |
1444 | ctx.gpr[i] = int64; |
1445 | } | |
1446 | else | |
1447 | { | |
647478e0 | 1448 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + i, |
822c9732 | 1449 | (void *) &int32); |
cbe92db4 KB |
1450 | ctx.gpr[i] = int32; |
1451 | } | |
1452 | } | |
c11d79f2 | 1453 | |
61c5da0b | 1454 | /* Collect floating-point register values from the regcache. */ |
c7f30c7a | 1455 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1456 | fill_fprs (regcache, ctx.fpr); |
c11d79f2 | 1457 | |
61c5da0b KB |
1458 | /* Special registers (always kept in ctx as 64 bits). */ |
1459 | if (arch64) | |
1460 | { | |
647478e0 UW |
1461 | fill_sprs64 (regcache, &ctx.iar, &ctx.msr, &ctx.cr, &ctx.lr, &ctx.ctr, |
1462 | &ctx.xer, &ctx.fpscr); | |
61c5da0b KB |
1463 | } |
1464 | else | |
1465 | { | |
1466 | /* Problem: ctx.iar etc. are 64 bits, but raw_registers are 32. | |
0d16ee5d UW |
1467 | Solution: use 32-bit temp variables. */ |
1468 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1469 | tmp_fpscr; | |
61c5da0b | 1470 | |
647478e0 UW |
1471 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, &tmp_ctr, |
1472 | &tmp_xer, &tmp_fpscr); | |
c7f30c7a | 1473 | if (regcache_valid_p (regcache, gdbarch_pc_regnum (gdbarch))) |
cbe92db4 | 1474 | ctx.iar = tmp_iar; |
647478e0 | 1475 | if (regcache_valid_p (regcache, tdep->ppc_ps_regnum)) |
cbe92db4 | 1476 | ctx.msr = tmp_msr; |
647478e0 | 1477 | if (regcache_valid_p (regcache, tdep->ppc_cr_regnum)) |
cbe92db4 | 1478 | ctx.cr = tmp_cr; |
647478e0 | 1479 | if (regcache_valid_p (regcache, tdep->ppc_lr_regnum)) |
cbe92db4 | 1480 | ctx.lr = tmp_lr; |
647478e0 | 1481 | if (regcache_valid_p (regcache, tdep->ppc_ctr_regnum)) |
cbe92db4 | 1482 | ctx.ctr = tmp_ctr; |
647478e0 | 1483 | if (regcache_valid_p (regcache, tdep->ppc_xer_regnum)) |
cbe92db4 | 1484 | ctx.xer = tmp_xer; |
647478e0 | 1485 | if (regcache_valid_p (regcache, tdep->ppc_xer_regnum)) |
0e061eef | 1486 | ctx.fpscr = tmp_fpscr; |
61c5da0b | 1487 | } |
c11d79f2 KB |
1488 | |
1489 | status = pthdb_pthread_setcontext (pd_session, pdtid, &ctx); | |
1490 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1491 | error (_("aix-thread: store_registers: pthdb_pthread_setcontext returned %s"), |
14fa3751 | 1492 | pd_status2str (status)); |
c11d79f2 KB |
1493 | } |
1494 | ||
0fe7bf7b MS |
1495 | /* Store register REGNO if != -1 or all registers otherwise into |
1496 | kernel thread TID. | |
c11d79f2 | 1497 | |
0fe7bf7b MS |
1498 | AIX provides a way to set all of a kernel thread's GPRs, FPRs, or |
1499 | SPRs, but there's no way to set individual registers within those | |
1500 | groups. Therefore, if REGNO != -1, this function stores an entire | |
1501 | group. */ | |
c11d79f2 KB |
1502 | |
1503 | static void | |
647478e0 UW |
1504 | store_regs_kernel_thread (const struct regcache *regcache, int regno, |
1505 | pthdb_tid_t tid) | |
c11d79f2 | 1506 | { |
c7f30c7a UW |
1507 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1508 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
063715bf JB |
1509 | uint64_t gprs64[ppc_num_gprs]; |
1510 | uint32_t gprs32[ppc_num_gprs]; | |
1511 | double fprs[ppc_num_fprs]; | |
c11d79f2 | 1512 | struct ptxsprs sprs64; |
61c5da0b KB |
1513 | struct ptsprs sprs32; |
1514 | int i; | |
c11d79f2 | 1515 | |
8e2c28d4 | 1516 | if (debug_aix_thread) |
206d3d3c KB |
1517 | fprintf_unfiltered (gdb_stdlog, |
1518 | "store_regs_kernel_thread tid=%lx regno=%d\n", | |
1519 | (long) tid, regno); | |
c11d79f2 | 1520 | |
0fe7bf7b | 1521 | /* General-purpose registers. */ |
daf6dc85 JB |
1522 | if (regno == -1 |
1523 | || (tdep->ppc_gp0_regnum <= regno | |
1524 | && regno < tdep->ppc_gp0_regnum + ppc_num_fprs)) | |
c11d79f2 | 1525 | { |
c11d79f2 | 1526 | if (arch64) |
61c5da0b | 1527 | { |
cbe92db4 KB |
1528 | /* Pre-fetch: some regs may not be in the cache. */ |
1529 | ptrace64aix (PTT_READ_GPRS, tid, (unsigned long) gprs64, 0, NULL); | |
647478e0 | 1530 | fill_gprs64 (regcache, gprs64); |
61c5da0b KB |
1531 | ptrace64aix (PTT_WRITE_GPRS, tid, (unsigned long) gprs64, 0, NULL); |
1532 | } | |
c11d79f2 | 1533 | else |
61c5da0b | 1534 | { |
cbe92db4 KB |
1535 | /* Pre-fetch: some regs may not be in the cache. */ |
1536 | ptrace32 (PTT_READ_GPRS, tid, gprs32, 0, NULL); | |
647478e0 | 1537 | fill_gprs32 (regcache, gprs32); |
61c5da0b KB |
1538 | ptrace32 (PTT_WRITE_GPRS, tid, gprs32, 0, NULL); |
1539 | } | |
c11d79f2 KB |
1540 | } |
1541 | ||
0fe7bf7b | 1542 | /* Floating-point registers. */ |
c11d79f2 | 1543 | |
c7f30c7a | 1544 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1545 | && (regno == -1 |
1546 | || (regno >= tdep->ppc_fp0_regnum | |
1547 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 | 1548 | { |
cbe92db4 KB |
1549 | /* Pre-fetch: some regs may not be in the cache. */ |
1550 | ptrace32 (PTT_READ_FPRS, tid, (int *) fprs, 0, NULL); | |
647478e0 | 1551 | fill_fprs (regcache, fprs); |
61c5da0b | 1552 | ptrace32 (PTT_WRITE_FPRS, tid, (int *) fprs, 0, NULL); |
c11d79f2 KB |
1553 | } |
1554 | ||
0fe7bf7b | 1555 | /* Special-purpose registers. */ |
c11d79f2 | 1556 | |
9970f04b | 1557 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1558 | { |
1559 | if (arch64) | |
1560 | { | |
cbe92db4 | 1561 | /* Pre-fetch: some registers won't be in the cache. */ |
0fe7bf7b MS |
1562 | ptrace64aix (PTT_READ_SPRS, tid, |
1563 | (unsigned long) &sprs64, 0, NULL); | |
647478e0 UW |
1564 | fill_sprs64 (regcache, &sprs64.pt_iar, &sprs64.pt_msr, |
1565 | &sprs64.pt_cr, &sprs64.pt_lr, &sprs64.pt_ctr, | |
1566 | &sprs64.pt_xer, &sprs64.pt_fpscr); | |
0fe7bf7b MS |
1567 | ptrace64aix (PTT_WRITE_SPRS, tid, |
1568 | (unsigned long) &sprs64, 0, NULL); | |
c11d79f2 KB |
1569 | } |
1570 | else | |
1571 | { | |
0d16ee5d UW |
1572 | /* The contents of "struct ptspr" were declared as "unsigned |
1573 | long" up to AIX 5.2, but are "unsigned int" since 5.3. | |
1574 | Use temporaries to work around this problem. Also, add an | |
1575 | assert here to make sure we fail if the system header files | |
1576 | use "unsigned long", and the size of that type is not what | |
1577 | the headers expect. */ | |
1578 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1579 | tmp_fpscr; | |
1580 | ||
1581 | gdb_assert (sizeof (sprs32.pt_iar) == 4); | |
1582 | ||
cbe92db4 | 1583 | /* Pre-fetch: some registers won't be in the cache. */ |
c11d79f2 KB |
1584 | ptrace32 (PTT_READ_SPRS, tid, (int *) &sprs32, 0, NULL); |
1585 | ||
647478e0 UW |
1586 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, |
1587 | &tmp_ctr, &tmp_xer, &tmp_fpscr); | |
0d16ee5d UW |
1588 | |
1589 | sprs32.pt_iar = tmp_iar; | |
1590 | sprs32.pt_msr = tmp_msr; | |
1591 | sprs32.pt_cr = tmp_cr; | |
1592 | sprs32.pt_lr = tmp_lr; | |
1593 | sprs32.pt_ctr = tmp_ctr; | |
1594 | sprs32.pt_xer = tmp_xer; | |
1595 | sprs32.pt_fpscr = tmp_fpscr; | |
c11d79f2 | 1596 | |
f1a91342 | 1597 | if (tdep->ppc_mq_regnum >= 0) |
647478e0 UW |
1598 | if (regcache_valid_p (regcache, tdep->ppc_mq_regnum)) |
1599 | regcache_raw_collect (regcache, tdep->ppc_mq_regnum, | |
822c9732 | 1600 | &sprs32.pt_mq); |
c11d79f2 KB |
1601 | |
1602 | ptrace32 (PTT_WRITE_SPRS, tid, (int *) &sprs32, 0, NULL); | |
1603 | } | |
1604 | } | |
1605 | } | |
1606 | ||
0fe7bf7b MS |
1607 | /* Store gdb's current view of the register set into the |
1608 | thread/process specified by inferior_ptid. */ | |
c11d79f2 KB |
1609 | |
1610 | static void | |
56be3814 | 1611 | aix_thread_store_registers (struct regcache *regcache, int regno) |
c11d79f2 KB |
1612 | { |
1613 | struct thread_info *thread; | |
1614 | pthdb_tid_t tid; | |
1615 | ||
1616 | if (!PD_TID (inferior_ptid)) | |
56be3814 | 1617 | base_target.to_store_registers (regcache, regno); |
c11d79f2 KB |
1618 | else |
1619 | { | |
1620 | thread = find_thread_pid (inferior_ptid); | |
1621 | tid = thread->private->tid; | |
1622 | ||
1623 | if (tid == PTHDB_INVALID_TID) | |
56be3814 | 1624 | store_regs_user_thread (regcache, thread->private->pdtid); |
c11d79f2 | 1625 | else |
56be3814 | 1626 | store_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1627 | } |
1628 | } | |
1629 | ||
037a727e UW |
1630 | /* Attempt a transfer all LEN bytes starting at OFFSET between the |
1631 | inferior's OBJECT:ANNEX space and GDB's READBUF/WRITEBUF buffer. | |
1632 | Return the number of bytes actually transferred. */ | |
1633 | ||
1634 | static LONGEST | |
1635 | aix_thread_xfer_partial (struct target_ops *ops, enum target_object object, | |
1636 | const char *annex, gdb_byte *readbuf, | |
1637 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
c11d79f2 | 1638 | { |
037a727e UW |
1639 | struct cleanup *old_chain = save_inferior_ptid (); |
1640 | LONGEST xfer; | |
14fa3751 KB |
1641 | |
1642 | inferior_ptid = pid_to_ptid (PIDGET (inferior_ptid)); | |
037a727e UW |
1643 | xfer = base_target.to_xfer_partial (ops, object, annex, |
1644 | readbuf, writebuf, offset, len); | |
c11d79f2 | 1645 | |
037a727e UW |
1646 | do_cleanups (old_chain); |
1647 | return xfer; | |
c11d79f2 KB |
1648 | } |
1649 | ||
0fe7bf7b | 1650 | /* Kill and forget about the inferior process. */ |
c11d79f2 KB |
1651 | |
1652 | static void | |
206d3d3c | 1653 | aix_thread_kill (void) |
c11d79f2 | 1654 | { |
14fa3751 KB |
1655 | struct cleanup *cleanup = save_inferior_ptid (); |
1656 | ||
1657 | inferior_ptid = pid_to_ptid (PIDGET (inferior_ptid)); | |
206d3d3c | 1658 | base_target.to_kill (); |
14fa3751 | 1659 | do_cleanups (cleanup); |
c11d79f2 KB |
1660 | } |
1661 | ||
0fe7bf7b | 1662 | /* Clean up after the inferior exits. */ |
c11d79f2 KB |
1663 | |
1664 | static void | |
206d3d3c | 1665 | aix_thread_mourn_inferior (void) |
c11d79f2 KB |
1666 | { |
1667 | pd_deactivate (); | |
206d3d3c | 1668 | base_target.to_mourn_inferior (); |
c11d79f2 KB |
1669 | } |
1670 | ||
0fe7bf7b | 1671 | /* Return whether thread PID is still valid. */ |
c11d79f2 KB |
1672 | |
1673 | static int | |
206d3d3c | 1674 | aix_thread_thread_alive (ptid_t ptid) |
c11d79f2 KB |
1675 | { |
1676 | if (!PD_TID (ptid)) | |
206d3d3c | 1677 | return base_target.to_thread_alive (ptid); |
c11d79f2 | 1678 | |
0fe7bf7b MS |
1679 | /* We update the thread list every time the child stops, so all |
1680 | valid threads should be in the thread list. */ | |
c11d79f2 KB |
1681 | return in_thread_list (ptid); |
1682 | } | |
1683 | ||
0fe7bf7b MS |
1684 | /* Return a printable representation of composite PID for use in |
1685 | "info threads" output. */ | |
c11d79f2 KB |
1686 | |
1687 | static char * | |
206d3d3c | 1688 | aix_thread_pid_to_str (ptid_t ptid) |
c11d79f2 KB |
1689 | { |
1690 | static char *ret = NULL; | |
1691 | ||
1692 | if (!PD_TID (ptid)) | |
206d3d3c | 1693 | return base_target.to_pid_to_str (ptid); |
c11d79f2 KB |
1694 | |
1695 | /* Free previous return value; a new one will be allocated by | |
b435e160 | 1696 | xstrprintf(). */ |
c11d79f2 KB |
1697 | xfree (ret); |
1698 | ||
edefbb7c | 1699 | ret = xstrprintf (_("Thread %ld"), ptid_get_tid (ptid)); |
c11d79f2 KB |
1700 | return ret; |
1701 | } | |
1702 | ||
0fe7bf7b MS |
1703 | /* Return a printable representation of extra information about |
1704 | THREAD, for use in "info threads" output. */ | |
c11d79f2 KB |
1705 | |
1706 | static char * | |
206d3d3c | 1707 | aix_thread_extra_thread_info (struct thread_info *thread) |
c11d79f2 KB |
1708 | { |
1709 | struct ui_file *buf; | |
1710 | int status; | |
1711 | pthdb_pthread_t pdtid; | |
1712 | pthdb_tid_t tid; | |
1713 | pthdb_state_t state; | |
1714 | pthdb_suspendstate_t suspendstate; | |
1715 | pthdb_detachstate_t detachstate; | |
1716 | int cancelpend; | |
1717 | long length; | |
1718 | static char *ret = NULL; | |
1719 | ||
1720 | if (!PD_TID (thread->ptid)) | |
1721 | return NULL; | |
1722 | ||
1723 | buf = mem_fileopen (); | |
1724 | ||
1725 | pdtid = thread->private->pdtid; | |
1726 | tid = thread->private->tid; | |
1727 | ||
1728 | if (tid != PTHDB_INVALID_TID) | |
edefbb7c | 1729 | /* i18n: Like "thread-identifier %d, [state] running, suspended" */ |
0d16ee5d | 1730 | fprintf_unfiltered (buf, _("tid %d"), (int)tid); |
c11d79f2 KB |
1731 | |
1732 | status = pthdb_pthread_state (pd_session, pdtid, &state); | |
1733 | if (status != PTHDB_SUCCESS) | |
1734 | state = PST_NOTSUP; | |
1735 | fprintf_unfiltered (buf, ", %s", state2str (state)); | |
1736 | ||
0fe7bf7b MS |
1737 | status = pthdb_pthread_suspendstate (pd_session, pdtid, |
1738 | &suspendstate); | |
c11d79f2 | 1739 | if (status == PTHDB_SUCCESS && suspendstate == PSS_SUSPENDED) |
edefbb7c AC |
1740 | /* i18n: Like "Thread-Id %d, [state] running, suspended" */ |
1741 | fprintf_unfiltered (buf, _(", suspended")); | |
c11d79f2 | 1742 | |
0fe7bf7b MS |
1743 | status = pthdb_pthread_detachstate (pd_session, pdtid, |
1744 | &detachstate); | |
c11d79f2 | 1745 | if (status == PTHDB_SUCCESS && detachstate == PDS_DETACHED) |
edefbb7c AC |
1746 | /* i18n: Like "Thread-Id %d, [state] running, detached" */ |
1747 | fprintf_unfiltered (buf, _(", detached")); | |
c11d79f2 KB |
1748 | |
1749 | pthdb_pthread_cancelpend (pd_session, pdtid, &cancelpend); | |
1750 | if (status == PTHDB_SUCCESS && cancelpend) | |
edefbb7c AC |
1751 | /* i18n: Like "Thread-Id %d, [state] running, cancel pending" */ |
1752 | fprintf_unfiltered (buf, _(", cancel pending")); | |
c11d79f2 KB |
1753 | |
1754 | ui_file_write (buf, "", 1); | |
1755 | ||
1756 | xfree (ret); /* Free old buffer. */ | |
1757 | ||
1758 | ret = ui_file_xstrdup (buf, &length); | |
1759 | ui_file_delete (buf); | |
1760 | ||
1761 | return ret; | |
1762 | } | |
1763 | ||
206d3d3c | 1764 | /* Initialize target aix_thread_ops. */ |
c11d79f2 KB |
1765 | |
1766 | static void | |
206d3d3c | 1767 | init_aix_thread_ops (void) |
c11d79f2 | 1768 | { |
206d3d3c | 1769 | aix_thread_ops.to_shortname = "aix-threads"; |
edefbb7c AC |
1770 | aix_thread_ops.to_longname = _("AIX pthread support"); |
1771 | aix_thread_ops.to_doc = _("AIX pthread support"); | |
206d3d3c KB |
1772 | |
1773 | aix_thread_ops.to_attach = aix_thread_attach; | |
1774 | aix_thread_ops.to_detach = aix_thread_detach; | |
1775 | aix_thread_ops.to_resume = aix_thread_resume; | |
1776 | aix_thread_ops.to_wait = aix_thread_wait; | |
1777 | aix_thread_ops.to_fetch_registers = aix_thread_fetch_registers; | |
1778 | aix_thread_ops.to_store_registers = aix_thread_store_registers; | |
037a727e | 1779 | aix_thread_ops.to_xfer_partial = aix_thread_xfer_partial; |
206d3d3c | 1780 | /* No need for aix_thread_ops.to_create_inferior, because we activate thread |
0fe7bf7b | 1781 | debugging when the inferior reaches pd_brk_addr. */ |
206d3d3c KB |
1782 | aix_thread_ops.to_kill = aix_thread_kill; |
1783 | aix_thread_ops.to_mourn_inferior = aix_thread_mourn_inferior; | |
1784 | aix_thread_ops.to_thread_alive = aix_thread_thread_alive; | |
1785 | aix_thread_ops.to_pid_to_str = aix_thread_pid_to_str; | |
1786 | aix_thread_ops.to_extra_thread_info = aix_thread_extra_thread_info; | |
1787 | aix_thread_ops.to_stratum = thread_stratum; | |
1788 | aix_thread_ops.to_magic = OPS_MAGIC; | |
c11d79f2 KB |
1789 | } |
1790 | ||
1791 | /* Module startup initialization function, automagically called by | |
0fe7bf7b | 1792 | init.c. */ |
c11d79f2 KB |
1793 | |
1794 | void | |
1795 | _initialize_aix_thread (void) | |
1796 | { | |
206d3d3c KB |
1797 | init_aix_thread_ops (); |
1798 | add_target (&aix_thread_ops); | |
c11d79f2 | 1799 | |
0fe7bf7b | 1800 | /* Notice when object files get loaded and unloaded. */ |
06d3b283 | 1801 | observer_attach_new_objfile (new_objfile); |
8e2c28d4 | 1802 | |
577b7047 | 1803 | add_setshow_boolean_cmd ("aix-thread", class_maintenance, &debug_aix_thread, |
edefbb7c AC |
1804 | _("Set debugging of AIX thread module."), |
1805 | _("Show debugging of AIX thread module."), | |
1806 | _("Enables debugging output (used to debug GDB)."), | |
2c5b56ce AC |
1807 | NULL, NULL, /* FIXME: i18n: Debugging of AIX thread module is \"%d\". */ |
1808 | &setdebuglist, &showdebuglist); | |
c11d79f2 | 1809 | } |