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1 | /* Low level interface for debugging AIX 4.3+ pthreads. |
2 | ||
0fb0cc75 JB |
3 | Copyright (C) 1999, 2000, 2002, 2007, 2008, 2009 |
4 | Free Software Foundation, Inc. | |
c11d79f2 KB |
5 | Written by Nick Duffek <nsd@redhat.com>. |
6 | ||
7 | This file is part of GDB. | |
8 | ||
9 | This program is free software; you can redistribute it and/or modify | |
10 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 11 | the Free Software Foundation; either version 3 of the License, or |
c11d79f2 KB |
12 | (at your option) any later version. |
13 | ||
14 | This program is distributed in the hope that it will be useful, | |
15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | GNU General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c11d79f2 KB |
21 | |
22 | ||
23 | /* This module uses the libpthdebug.a library provided by AIX 4.3+ for | |
24 | debugging pthread applications. | |
25 | ||
26 | Some name prefix conventions: | |
27 | pthdb_ provided by libpthdebug.a | |
28 | pdc_ callbacks that this module provides to libpthdebug.a | |
29 | pd_ variables or functions interfacing with libpthdebug.a | |
30 | ||
31 | libpthdebug peculiarities: | |
32 | ||
0fe7bf7b MS |
33 | - pthdb_ptid_pthread() is prototyped in <sys/pthdebug.h>, but |
34 | it's not documented, and after several calls it stops working | |
35 | and causes other libpthdebug functions to fail. | |
c11d79f2 | 36 | |
0fe7bf7b MS |
37 | - pthdb_tid_pthread() doesn't always work after |
38 | pthdb_session_update(), but it does work after cycling through | |
39 | all threads using pthdb_pthread(). | |
c11d79f2 KB |
40 | |
41 | */ | |
42 | ||
43 | #include "defs.h" | |
61c5da0b | 44 | #include "gdb_assert.h" |
c11d79f2 KB |
45 | #include "gdbthread.h" |
46 | #include "target.h" | |
47 | #include "inferior.h" | |
48 | #include "regcache.h" | |
8e2c28d4 | 49 | #include "gdbcmd.h" |
27bae383 | 50 | #include "ppc-tdep.h" |
0d4d5484 | 51 | #include "gdb_string.h" |
06d3b283 | 52 | #include "observer.h" |
c11d79f2 | 53 | |
c11d79f2 KB |
54 | #include <procinfo.h> |
55 | #include <sys/types.h> | |
56 | #include <sys/ptrace.h> | |
57 | #include <sys/reg.h> | |
c11d79f2 KB |
58 | #include <sched.h> |
59 | #include <sys/pthdebug.h> | |
60 | ||
0fe7bf7b | 61 | /* Whether to emit debugging output. */ |
8e2c28d4 | 62 | static int debug_aix_thread; |
c11d79f2 | 63 | |
0fe7bf7b | 64 | /* In AIX 5.1, functions use pthdb_tid_t instead of tid_t. */ |
c11d79f2 KB |
65 | #ifndef PTHDB_VERSION_3 |
66 | #define pthdb_tid_t tid_t | |
67 | #endif | |
68 | ||
0fe7bf7b | 69 | /* Return whether to treat PID as a debuggable thread id. */ |
c11d79f2 KB |
70 | |
71 | #define PD_TID(ptid) (pd_active && ptid_get_tid (ptid) != 0) | |
72 | ||
73 | /* Build a thread ptid. */ | |
74 | #define BUILD_THREAD(TID, PID) ptid_build (PID, 0, TID) | |
75 | ||
76 | /* Build and lwp ptid. */ | |
77 | #define BUILD_LWP(LWP, PID) MERGEPID (PID, LWP) | |
78 | ||
c11d79f2 | 79 | /* pthdb_user_t value that we pass to pthdb functions. 0 causes |
0fe7bf7b | 80 | PTHDB_BAD_USER errors, so use 1. */ |
c11d79f2 KB |
81 | |
82 | #define PD_USER 1 | |
83 | ||
0fe7bf7b | 84 | /* Success and failure values returned by pthdb callbacks. */ |
c11d79f2 KB |
85 | |
86 | #define PDC_SUCCESS PTHDB_SUCCESS | |
87 | #define PDC_FAILURE PTHDB_CALLBACK | |
88 | ||
0fe7bf7b | 89 | /* Private data attached to each element in GDB's thread list. */ |
c11d79f2 KB |
90 | |
91 | struct private_thread_info { | |
0fe7bf7b | 92 | pthdb_pthread_t pdtid; /* thread's libpthdebug id */ |
c11d79f2 KB |
93 | pthdb_tid_t tid; /* kernel thread id */ |
94 | }; | |
95 | ||
0fe7bf7b | 96 | /* Information about a thread of which libpthdebug is aware. */ |
c11d79f2 KB |
97 | |
98 | struct pd_thread { | |
99 | pthdb_pthread_t pdtid; | |
100 | pthread_t pthid; | |
101 | pthdb_tid_t tid; | |
102 | }; | |
103 | ||
0fe7bf7b | 104 | /* This module's target-specific operations, active while pd_able is true. */ |
c11d79f2 | 105 | |
206d3d3c | 106 | static struct target_ops aix_thread_ops; |
c11d79f2 | 107 | |
1df84f13 AC |
108 | /* Copy of the target over which ops is pushed. This is more |
109 | convenient than a pointer to deprecated_child_ops or core_ops, | |
0fe7bf7b | 110 | because they lack current_target's default callbacks. */ |
c11d79f2 | 111 | |
206d3d3c | 112 | static struct target_ops base_target; |
c11d79f2 | 113 | |
0fe7bf7b MS |
114 | /* Address of the function that libpthread will call when libpthdebug |
115 | is ready to be initialized. */ | |
c11d79f2 KB |
116 | |
117 | static CORE_ADDR pd_brk_addr; | |
118 | ||
0fe7bf7b | 119 | /* Whether the current application is debuggable by pthdb. */ |
c11d79f2 KB |
120 | |
121 | static int pd_able = 0; | |
122 | ||
0fe7bf7b | 123 | /* Whether a threaded application is being debugged. */ |
c11d79f2 KB |
124 | |
125 | static int pd_active = 0; | |
126 | ||
0fe7bf7b MS |
127 | /* Whether the current architecture is 64-bit. |
128 | Only valid when pd_able is true. */ | |
c11d79f2 KB |
129 | |
130 | static int arch64; | |
131 | ||
0fe7bf7b | 132 | /* Forward declarations for pthdb callbacks. */ |
c11d79f2 KB |
133 | |
134 | static int pdc_symbol_addrs (pthdb_user_t, pthdb_symbol_t *, int); | |
135 | static int pdc_read_data (pthdb_user_t, void *, pthdb_addr_t, size_t); | |
136 | static int pdc_write_data (pthdb_user_t, void *, pthdb_addr_t, size_t); | |
137 | static int pdc_read_regs (pthdb_user_t user, pthdb_tid_t tid, | |
0fe7bf7b MS |
138 | unsigned long long flags, |
139 | pthdb_context_t *context); | |
c11d79f2 | 140 | static int pdc_write_regs (pthdb_user_t user, pthdb_tid_t tid, |
0fe7bf7b MS |
141 | unsigned long long flags, |
142 | pthdb_context_t *context); | |
c11d79f2 KB |
143 | static int pdc_alloc (pthdb_user_t, size_t, void **); |
144 | static int pdc_realloc (pthdb_user_t, void *, size_t, void **); | |
145 | static int pdc_dealloc (pthdb_user_t, void *); | |
146 | ||
0fe7bf7b | 147 | /* pthdb callbacks. */ |
c11d79f2 KB |
148 | |
149 | static pthdb_callbacks_t pd_callbacks = { | |
150 | pdc_symbol_addrs, | |
151 | pdc_read_data, | |
152 | pdc_write_data, | |
153 | pdc_read_regs, | |
154 | pdc_write_regs, | |
155 | pdc_alloc, | |
156 | pdc_realloc, | |
157 | pdc_dealloc, | |
158 | NULL | |
159 | }; | |
160 | ||
0fe7bf7b | 161 | /* Current pthdb session. */ |
c11d79f2 KB |
162 | |
163 | static pthdb_session_t pd_session; | |
164 | ||
0fe7bf7b MS |
165 | /* Return a printable representation of pthdebug function return |
166 | STATUS. */ | |
c11d79f2 KB |
167 | |
168 | static char * | |
169 | pd_status2str (int status) | |
170 | { | |
171 | switch (status) | |
172 | { | |
173 | case PTHDB_SUCCESS: return "SUCCESS"; | |
174 | case PTHDB_NOSYS: return "NOSYS"; | |
175 | case PTHDB_NOTSUP: return "NOTSUP"; | |
176 | case PTHDB_BAD_VERSION: return "BAD_VERSION"; | |
177 | case PTHDB_BAD_USER: return "BAD_USER"; | |
178 | case PTHDB_BAD_SESSION: return "BAD_SESSION"; | |
179 | case PTHDB_BAD_MODE: return "BAD_MODE"; | |
180 | case PTHDB_BAD_FLAGS: return "BAD_FLAGS"; | |
181 | case PTHDB_BAD_CALLBACK: return "BAD_CALLBACK"; | |
182 | case PTHDB_BAD_POINTER: return "BAD_POINTER"; | |
183 | case PTHDB_BAD_CMD: return "BAD_CMD"; | |
184 | case PTHDB_BAD_PTHREAD: return "BAD_PTHREAD"; | |
185 | case PTHDB_BAD_ATTR: return "BAD_ATTR"; | |
186 | case PTHDB_BAD_MUTEX: return "BAD_MUTEX"; | |
187 | case PTHDB_BAD_MUTEXATTR: return "BAD_MUTEXATTR"; | |
188 | case PTHDB_BAD_COND: return "BAD_COND"; | |
189 | case PTHDB_BAD_CONDATTR: return "BAD_CONDATTR"; | |
190 | case PTHDB_BAD_RWLOCK: return "BAD_RWLOCK"; | |
191 | case PTHDB_BAD_RWLOCKATTR: return "BAD_RWLOCKATTR"; | |
192 | case PTHDB_BAD_KEY: return "BAD_KEY"; | |
193 | case PTHDB_BAD_PTID: return "BAD_PTID"; | |
194 | case PTHDB_BAD_TID: return "BAD_TID"; | |
195 | case PTHDB_CALLBACK: return "CALLBACK"; | |
196 | case PTHDB_CONTEXT: return "CONTEXT"; | |
197 | case PTHDB_HELD: return "HELD"; | |
198 | case PTHDB_NOT_HELD: return "NOT_HELD"; | |
199 | case PTHDB_MEMORY: return "MEMORY"; | |
200 | case PTHDB_NOT_PTHREADED: return "NOT_PTHREADED"; | |
201 | case PTHDB_SYMBOL: return "SYMBOL"; | |
202 | case PTHDB_NOT_AVAIL: return "NOT_AVAIL"; | |
203 | case PTHDB_INTERNAL: return "INTERNAL"; | |
204 | default: return "UNKNOWN"; | |
205 | } | |
206 | } | |
207 | ||
0fe7bf7b MS |
208 | /* A call to ptrace(REQ, ID, ...) just returned RET. Check for |
209 | exceptional conditions and either return nonlocally or else return | |
210 | 1 for success and 0 for failure. */ | |
c11d79f2 KB |
211 | |
212 | static int | |
213 | ptrace_check (int req, int id, int ret) | |
214 | { | |
215 | if (ret == 0 && !errno) | |
216 | return 1; | |
217 | ||
0fe7bf7b MS |
218 | /* According to ptrace(2), ptrace may fail with EPERM if "the |
219 | Identifier parameter corresponds to a kernel thread which is | |
220 | stopped in kernel mode and whose computational state cannot be | |
221 | read or written." This happens quite often with register reads. */ | |
c11d79f2 KB |
222 | |
223 | switch (req) | |
224 | { | |
225 | case PTT_READ_GPRS: | |
226 | case PTT_READ_FPRS: | |
227 | case PTT_READ_SPRS: | |
228 | if (ret == -1 && errno == EPERM) | |
42cc437f KB |
229 | { |
230 | if (debug_aix_thread) | |
0fe7bf7b | 231 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 232 | "ptrace (%d, %d) = %d (errno = %d)\n", |
42cc437f KB |
233 | req, id, ret, errno); |
234 | return ret == -1 ? 0 : 1; | |
235 | } | |
c11d79f2 KB |
236 | break; |
237 | } | |
edefbb7c | 238 | error (_("aix-thread: ptrace (%d, %d) returned %d (errno = %d %s)"), |
be006b8b | 239 | req, id, ret, errno, safe_strerror (errno)); |
0fe7bf7b | 240 | return 0; /* Not reached. */ |
c11d79f2 KB |
241 | } |
242 | ||
0fe7bf7b | 243 | /* Call ptracex (REQ, ID, ADDR, DATA, BUF). Return success. */ |
c11d79f2 KB |
244 | |
245 | static int | |
246 | ptrace64aix (int req, int id, long long addr, int data, int *buf) | |
247 | { | |
248 | errno = 0; | |
249 | return ptrace_check (req, id, ptracex (req, id, addr, data, buf)); | |
250 | } | |
251 | ||
0fe7bf7b | 252 | /* Call ptrace (REQ, ID, ADDR, DATA, BUF). Return success. */ |
c11d79f2 KB |
253 | |
254 | static int | |
255 | ptrace32 (int req, int id, int *addr, int data, int *buf) | |
256 | { | |
257 | errno = 0; | |
0fe7bf7b | 258 | return ptrace_check (req, id, |
206d3d3c | 259 | ptrace (req, id, (int *) addr, data, buf)); |
c11d79f2 KB |
260 | } |
261 | ||
0fe7bf7b MS |
262 | /* If *PIDP is a composite process/thread id, convert it to a |
263 | process id. */ | |
c11d79f2 KB |
264 | |
265 | static void | |
266 | pid_to_prc (ptid_t *ptidp) | |
267 | { | |
268 | ptid_t ptid; | |
269 | ||
270 | ptid = *ptidp; | |
271 | if (PD_TID (ptid)) | |
272 | *ptidp = pid_to_ptid (PIDGET (ptid)); | |
273 | } | |
274 | ||
0fe7bf7b MS |
275 | /* pthdb callback: for <i> from 0 to COUNT, set SYMBOLS[<i>].addr to |
276 | the address of SYMBOLS[<i>].name. */ | |
c11d79f2 KB |
277 | |
278 | static int | |
279 | pdc_symbol_addrs (pthdb_user_t user, pthdb_symbol_t *symbols, int count) | |
280 | { | |
281 | struct minimal_symbol *ms; | |
282 | int i; | |
283 | char *name; | |
284 | ||
8e2c28d4 KB |
285 | if (debug_aix_thread) |
286 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 287 | "pdc_symbol_addrs (user = %ld, symbols = 0x%lx, count = %d)\n", |
8e2c28d4 | 288 | user, (long) symbols, count); |
c11d79f2 KB |
289 | |
290 | for (i = 0; i < count; i++) | |
291 | { | |
292 | name = symbols[i].name; | |
8e2c28d4 | 293 | if (debug_aix_thread) |
0fe7bf7b | 294 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 295 | " symbols[%d].name = \"%s\"\n", i, name); |
c11d79f2 KB |
296 | |
297 | if (!*name) | |
298 | symbols[i].addr = 0; | |
299 | else | |
300 | { | |
301 | if (!(ms = lookup_minimal_symbol (name, NULL, NULL))) | |
302 | { | |
8e2c28d4 | 303 | if (debug_aix_thread) |
27bae383 | 304 | fprintf_unfiltered (gdb_stdlog, " returning PDC_FAILURE\n"); |
c11d79f2 KB |
305 | return PDC_FAILURE; |
306 | } | |
307 | symbols[i].addr = SYMBOL_VALUE_ADDRESS (ms); | |
308 | } | |
8e2c28d4 | 309 | if (debug_aix_thread) |
27bae383 | 310 | fprintf_unfiltered (gdb_stdlog, " symbols[%d].addr = %s\n", |
bb599908 | 311 | i, hex_string (symbols[i].addr)); |
c11d79f2 | 312 | } |
8e2c28d4 | 313 | if (debug_aix_thread) |
27bae383 | 314 | fprintf_unfiltered (gdb_stdlog, " returning PDC_SUCCESS\n"); |
c11d79f2 KB |
315 | return PDC_SUCCESS; |
316 | } | |
317 | ||
0fe7bf7b MS |
318 | /* Read registers call back function should be able to read the |
319 | context information of a debuggee kernel thread from an active | |
320 | process or from a core file. The information should be formatted | |
321 | in context64 form for both 32-bit and 64-bit process. | |
322 | If successful return 0, else non-zero is returned. */ | |
323 | ||
c11d79f2 KB |
324 | static int |
325 | pdc_read_regs (pthdb_user_t user, | |
326 | pthdb_tid_t tid, | |
327 | unsigned long long flags, | |
328 | pthdb_context_t *context) | |
329 | { | |
0fe7bf7b MS |
330 | /* This function doesn't appear to be used, so we could probably |
331 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
332 | complain and several thread debug functions will fail. In case | |
333 | this is needed, I have implemented what I think it should do, | |
334 | however this code is untested. */ | |
335 | ||
063715bf JB |
336 | uint64_t gprs64[ppc_num_gprs]; |
337 | uint32_t gprs32[ppc_num_gprs]; | |
338 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
339 | struct ptxsprs sprs64; |
340 | struct ptsprs sprs32; | |
341 | ||
8e2c28d4 | 342 | if (debug_aix_thread) |
27bae383 | 343 | fprintf_unfiltered (gdb_stdlog, "pdc_read_regs tid=%d flags=%s\n", |
bb599908 | 344 | (int) tid, hex_string (flags)); |
c11d79f2 | 345 | |
0fe7bf7b | 346 | /* General-purpose registers. */ |
c11d79f2 KB |
347 | if (flags & PTHDB_FLAG_GPRS) |
348 | { | |
349 | if (arch64) | |
350 | { | |
0fe7bf7b MS |
351 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
352 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 KB |
353 | memset (gprs64, 0, sizeof (gprs64)); |
354 | memcpy (context->gpr, gprs64, sizeof(gprs64)); | |
355 | } | |
356 | else | |
357 | { | |
358 | if (!ptrace32 (PTT_READ_GPRS, tid, gprs32, 0, NULL)) | |
359 | memset (gprs32, 0, sizeof (gprs32)); | |
360 | memcpy (context->gpr, gprs32, sizeof(gprs32)); | |
361 | } | |
362 | } | |
363 | ||
0fe7bf7b | 364 | /* Floating-point registers. */ |
c11d79f2 KB |
365 | if (flags & PTHDB_FLAG_FPRS) |
366 | { | |
ed1bd5f5 | 367 | if (!ptrace32 (PTT_READ_FPRS, tid, (void *) fprs, 0, NULL)) |
c11d79f2 | 368 | memset (fprs, 0, sizeof (fprs)); |
46bba1ef | 369 | memcpy (context->fpr, fprs, sizeof(fprs)); |
c11d79f2 KB |
370 | } |
371 | ||
0fe7bf7b | 372 | /* Special-purpose registers. */ |
c11d79f2 KB |
373 | if (flags & PTHDB_FLAG_SPRS) |
374 | { | |
375 | if (arch64) | |
376 | { | |
0fe7bf7b MS |
377 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
378 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 KB |
379 | memset (&sprs64, 0, sizeof (sprs64)); |
380 | memcpy (&context->msr, &sprs64, sizeof(sprs64)); | |
381 | } | |
382 | else | |
383 | { | |
384 | if (!ptrace32 (PTT_READ_SPRS, tid, (int *) &sprs32, 0, NULL)) | |
385 | memset (&sprs32, 0, sizeof (sprs32)); | |
386 | memcpy (&context->msr, &sprs32, sizeof(sprs32)); | |
387 | } | |
388 | } | |
389 | return 0; | |
390 | } | |
391 | ||
0fe7bf7b MS |
392 | /* Write register function should be able to write requested context |
393 | information to specified debuggee's kernel thread id. | |
394 | If successful return 0, else non-zero is returned. */ | |
395 | ||
c11d79f2 KB |
396 | static int |
397 | pdc_write_regs (pthdb_user_t user, | |
398 | pthdb_tid_t tid, | |
399 | unsigned long long flags, | |
400 | pthdb_context_t *context) | |
401 | { | |
0fe7bf7b MS |
402 | /* This function doesn't appear to be used, so we could probably |
403 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
404 | complain and several thread debug functions will fail. In case | |
405 | this is needed, I have implemented what I think it should do, | |
406 | however this code is untested. */ | |
c11d79f2 | 407 | |
8e2c28d4 | 408 | if (debug_aix_thread) |
27bae383 | 409 | fprintf_unfiltered (gdb_stdlog, "pdc_write_regs tid=%d flags=%s\n", |
bb599908 | 410 | (int) tid, hex_string (flags)); |
c11d79f2 | 411 | |
0fe7bf7b | 412 | /* General-purpose registers. */ |
c11d79f2 KB |
413 | if (flags & PTHDB_FLAG_GPRS) |
414 | { | |
415 | if (arch64) | |
0fe7bf7b | 416 | ptrace64aix (PTT_WRITE_GPRS, tid, |
206d3d3c | 417 | (unsigned long) context->gpr, 0, NULL); |
c11d79f2 | 418 | else |
206d3d3c | 419 | ptrace32 (PTT_WRITE_GPRS, tid, (int *) context->gpr, 0, NULL); |
c11d79f2 KB |
420 | } |
421 | ||
0fe7bf7b | 422 | /* Floating-point registers. */ |
c11d79f2 KB |
423 | if (flags & PTHDB_FLAG_FPRS) |
424 | { | |
206d3d3c | 425 | ptrace32 (PTT_WRITE_FPRS, tid, (int *) context->fpr, 0, NULL); |
c11d79f2 KB |
426 | } |
427 | ||
0fe7bf7b | 428 | /* Special-purpose registers. */ |
c11d79f2 KB |
429 | if (flags & PTHDB_FLAG_SPRS) |
430 | { | |
431 | if (arch64) | |
432 | { | |
0fe7bf7b MS |
433 | ptrace64aix (PTT_WRITE_SPRS, tid, |
434 | (unsigned long) &context->msr, 0, NULL); | |
c11d79f2 KB |
435 | } |
436 | else | |
437 | { | |
ed1bd5f5 | 438 | ptrace32 (PTT_WRITE_SPRS, tid, (void *) &context->msr, 0, NULL); |
c11d79f2 KB |
439 | } |
440 | } | |
441 | return 0; | |
442 | } | |
443 | ||
0fe7bf7b | 444 | /* pthdb callback: read LEN bytes from process ADDR into BUF. */ |
c11d79f2 KB |
445 | |
446 | static int | |
0fe7bf7b MS |
447 | pdc_read_data (pthdb_user_t user, void *buf, |
448 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
449 | { |
450 | int status, ret; | |
451 | ||
8e2c28d4 KB |
452 | if (debug_aix_thread) |
453 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 454 | "pdc_read_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 455 | user, (long) buf, hex_string (addr), len); |
c11d79f2 KB |
456 | |
457 | status = target_read_memory (addr, buf, len); | |
458 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; | |
459 | ||
8e2c28d4 | 460 | if (debug_aix_thread) |
27bae383 | 461 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", |
0fe7bf7b | 462 | status, pd_status2str (ret)); |
c11d79f2 KB |
463 | return ret; |
464 | } | |
465 | ||
0fe7bf7b | 466 | /* pthdb callback: write LEN bytes from BUF to process ADDR. */ |
c11d79f2 KB |
467 | |
468 | static int | |
0fe7bf7b MS |
469 | pdc_write_data (pthdb_user_t user, void *buf, |
470 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
471 | { |
472 | int status, ret; | |
473 | ||
8e2c28d4 KB |
474 | if (debug_aix_thread) |
475 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 476 | "pdc_write_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 477 | user, (long) buf, hex_string (addr), len); |
c11d79f2 KB |
478 | |
479 | status = target_write_memory (addr, buf, len); | |
480 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; | |
481 | ||
8e2c28d4 | 482 | if (debug_aix_thread) |
27bae383 | 483 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", status, |
8e2c28d4 | 484 | pd_status2str (ret)); |
c11d79f2 KB |
485 | return ret; |
486 | } | |
487 | ||
0fe7bf7b MS |
488 | /* pthdb callback: allocate a LEN-byte buffer and store a pointer to it |
489 | in BUFP. */ | |
c11d79f2 KB |
490 | |
491 | static int | |
492 | pdc_alloc (pthdb_user_t user, size_t len, void **bufp) | |
493 | { | |
8e2c28d4 KB |
494 | if (debug_aix_thread) |
495 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 496 | "pdc_alloc (user = %ld, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 497 | user, len, (long) bufp); |
c11d79f2 | 498 | *bufp = xmalloc (len); |
8e2c28d4 | 499 | if (debug_aix_thread) |
0fe7bf7b | 500 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 501 | " malloc returned 0x%lx\n", (long) *bufp); |
0fe7bf7b MS |
502 | |
503 | /* Note: xmalloc() can't return 0; therefore PDC_FAILURE will never | |
504 | be returned. */ | |
505 | ||
c11d79f2 KB |
506 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
507 | } | |
508 | ||
0fe7bf7b MS |
509 | /* pthdb callback: reallocate BUF, which was allocated by the alloc or |
510 | realloc callback, so that it contains LEN bytes, and store a | |
511 | pointer to the result in BUFP. */ | |
c11d79f2 KB |
512 | |
513 | static int | |
514 | pdc_realloc (pthdb_user_t user, void *buf, size_t len, void **bufp) | |
515 | { | |
8e2c28d4 KB |
516 | if (debug_aix_thread) |
517 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 518 | "pdc_realloc (user = %ld, buf = 0x%lx, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 519 | user, (long) buf, len, (long) bufp); |
be006b8b | 520 | *bufp = xrealloc (buf, len); |
8e2c28d4 | 521 | if (debug_aix_thread) |
0fe7bf7b | 522 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 523 | " realloc returned 0x%lx\n", (long) *bufp); |
c11d79f2 KB |
524 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
525 | } | |
526 | ||
0fe7bf7b MS |
527 | /* pthdb callback: free BUF, which was allocated by the alloc or |
528 | realloc callback. */ | |
c11d79f2 KB |
529 | |
530 | static int | |
531 | pdc_dealloc (pthdb_user_t user, void *buf) | |
532 | { | |
8e2c28d4 | 533 | if (debug_aix_thread) |
0fe7bf7b | 534 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 535 | "pdc_free (user = %ld, buf = 0x%lx)\n", user, |
8e2c28d4 | 536 | (long) buf); |
c11d79f2 KB |
537 | xfree (buf); |
538 | return PDC_SUCCESS; | |
539 | } | |
540 | ||
0fe7bf7b | 541 | /* Return a printable representation of pthread STATE. */ |
c11d79f2 KB |
542 | |
543 | static char * | |
544 | state2str (pthdb_state_t state) | |
545 | { | |
546 | switch (state) | |
547 | { | |
edefbb7c AC |
548 | case PST_IDLE: |
549 | /* i18n: Like "Thread-Id %d, [state] idle" */ | |
550 | return _("idle"); /* being created */ | |
551 | case PST_RUN: | |
552 | /* i18n: Like "Thread-Id %d, [state] running" */ | |
553 | return _("running"); /* running */ | |
554 | case PST_SLEEP: | |
555 | /* i18n: Like "Thread-Id %d, [state] sleeping" */ | |
556 | return _("sleeping"); /* awaiting an event */ | |
557 | case PST_READY: | |
558 | /* i18n: Like "Thread-Id %d, [state] ready" */ | |
559 | return _("ready"); /* runnable */ | |
560 | case PST_TERM: | |
561 | /* i18n: Like "Thread-Id %d, [state] finished" */ | |
562 | return _("finished"); /* awaiting a join/detach */ | |
563 | default: | |
564 | /* i18n: Like "Thread-Id %d, [state] unknown" */ | |
565 | return _("unknown"); | |
c11d79f2 KB |
566 | } |
567 | } | |
568 | ||
0fe7bf7b | 569 | /* qsort() comparison function for sorting pd_thread structs by pthid. */ |
c11d79f2 KB |
570 | |
571 | static int | |
572 | pcmp (const void *p1v, const void *p2v) | |
573 | { | |
574 | struct pd_thread *p1 = (struct pd_thread *) p1v; | |
575 | struct pd_thread *p2 = (struct pd_thread *) p2v; | |
576 | return p1->pthid < p2->pthid ? -1 : p1->pthid > p2->pthid; | |
577 | } | |
578 | ||
0fe7bf7b | 579 | /* iterate_over_threads() callback for counting GDB threads. */ |
c11d79f2 KB |
580 | |
581 | static int | |
582 | giter_count (struct thread_info *thread, void *countp) | |
583 | { | |
584 | (*(int *) countp)++; | |
585 | return 0; | |
586 | } | |
587 | ||
0fe7bf7b | 588 | /* iterate_over_threads() callback for accumulating GDB thread pids. */ |
c11d79f2 KB |
589 | |
590 | static int | |
591 | giter_accum (struct thread_info *thread, void *bufp) | |
592 | { | |
593 | **(struct thread_info ***) bufp = thread; | |
594 | (*(struct thread_info ***) bufp)++; | |
595 | return 0; | |
596 | } | |
597 | ||
598 | /* ptid comparison function */ | |
0fe7bf7b | 599 | |
c11d79f2 KB |
600 | static int |
601 | ptid_cmp (ptid_t ptid1, ptid_t ptid2) | |
602 | { | |
603 | int pid1, pid2; | |
604 | ||
605 | if (ptid_get_pid (ptid1) < ptid_get_pid (ptid2)) | |
606 | return -1; | |
607 | else if (ptid_get_pid (ptid1) > ptid_get_pid (ptid2)) | |
608 | return 1; | |
609 | else if (ptid_get_tid (ptid1) < ptid_get_tid (ptid2)) | |
610 | return -1; | |
611 | else if (ptid_get_tid (ptid1) > ptid_get_tid (ptid2)) | |
612 | return 1; | |
613 | else if (ptid_get_lwp (ptid1) < ptid_get_lwp (ptid2)) | |
614 | return -1; | |
615 | else if (ptid_get_lwp (ptid1) > ptid_get_lwp (ptid2)) | |
616 | return 1; | |
617 | else | |
618 | return 0; | |
619 | } | |
620 | ||
0fe7bf7b | 621 | /* qsort() comparison function for sorting thread_info structs by pid. */ |
c11d79f2 KB |
622 | |
623 | static int | |
624 | gcmp (const void *t1v, const void *t2v) | |
625 | { | |
626 | struct thread_info *t1 = *(struct thread_info **) t1v; | |
627 | struct thread_info *t2 = *(struct thread_info **) t2v; | |
628 | return ptid_cmp (t1->ptid, t2->ptid); | |
629 | } | |
630 | ||
9ad7bec7 JB |
631 | /* Search through the list of all kernel threads for the thread |
632 | that has stopped on a SIGTRAP signal, and return its TID. | |
633 | Return 0 if none found. */ | |
634 | ||
635 | static pthdb_tid_t | |
636 | get_signaled_thread (void) | |
637 | { | |
638 | struct thrdsinfo64 thrinf; | |
639 | pthdb_tid_t ktid = 0; | |
640 | int result = 0; | |
641 | ||
642 | /* getthrds(3) isn't prototyped in any AIX 4.3.3 #include file. */ | |
643 | extern int getthrds (pid_t, struct thrdsinfo64 *, | |
644 | int, pthdb_tid_t *, int); | |
645 | ||
646 | while (1) | |
647 | { | |
648 | if (getthrds (PIDGET (inferior_ptid), &thrinf, | |
649 | sizeof (thrinf), &ktid, 1) != 1) | |
650 | break; | |
651 | ||
652 | if (thrinf.ti_cursig == SIGTRAP) | |
653 | return thrinf.ti_tid; | |
654 | } | |
655 | ||
656 | /* Didn't find any thread stopped on a SIGTRAP signal. */ | |
657 | return 0; | |
658 | } | |
659 | ||
c11d79f2 KB |
660 | /* Synchronize GDB's thread list with libpthdebug's. |
661 | ||
662 | There are some benefits of doing this every time the inferior stops: | |
663 | ||
0fe7bf7b MS |
664 | - allows users to run thread-specific commands without needing to |
665 | run "info threads" first | |
c11d79f2 KB |
666 | |
667 | - helps pthdb_tid_pthread() work properly (see "libpthdebug | |
668 | peculiarities" at the top of this module) | |
669 | ||
0fe7bf7b MS |
670 | - simplifies the demands placed on libpthdebug, which seems to |
671 | have difficulty with certain call patterns */ | |
c11d79f2 KB |
672 | |
673 | static void | |
674 | sync_threadlists (void) | |
675 | { | |
676 | int cmd, status, infpid; | |
677 | int pcount, psize, pi, gcount, gi; | |
678 | struct pd_thread *pbuf; | |
679 | struct thread_info **gbuf, **g, *thread; | |
680 | pthdb_pthread_t pdtid; | |
681 | pthread_t pthid; | |
682 | pthdb_tid_t tid; | |
c11d79f2 | 683 | |
0fe7bf7b | 684 | /* Accumulate an array of libpthdebug threads sorted by pthread id. */ |
c11d79f2 KB |
685 | |
686 | pcount = 0; | |
687 | psize = 1; | |
688 | pbuf = (struct pd_thread *) xmalloc (psize * sizeof *pbuf); | |
689 | ||
690 | for (cmd = PTHDB_LIST_FIRST;; cmd = PTHDB_LIST_NEXT) | |
691 | { | |
692 | status = pthdb_pthread (pd_session, &pdtid, cmd); | |
693 | if (status != PTHDB_SUCCESS || pdtid == PTHDB_INVALID_PTHREAD) | |
694 | break; | |
695 | ||
696 | status = pthdb_pthread_ptid (pd_session, pdtid, &pthid); | |
697 | if (status != PTHDB_SUCCESS || pthid == PTHDB_INVALID_PTID) | |
698 | continue; | |
699 | ||
700 | if (pcount == psize) | |
701 | { | |
702 | psize *= 2; | |
0fe7bf7b MS |
703 | pbuf = (struct pd_thread *) xrealloc (pbuf, |
704 | psize * sizeof *pbuf); | |
c11d79f2 KB |
705 | } |
706 | pbuf[pcount].pdtid = pdtid; | |
707 | pbuf[pcount].pthid = pthid; | |
708 | pcount++; | |
709 | } | |
710 | ||
711 | for (pi = 0; pi < pcount; pi++) | |
712 | { | |
713 | status = pthdb_pthread_tid (pd_session, pbuf[pi].pdtid, &tid); | |
714 | if (status != PTHDB_SUCCESS) | |
715 | tid = PTHDB_INVALID_TID; | |
716 | pbuf[pi].tid = tid; | |
717 | } | |
718 | ||
719 | qsort (pbuf, pcount, sizeof *pbuf, pcmp); | |
720 | ||
0fe7bf7b | 721 | /* Accumulate an array of GDB threads sorted by pid. */ |
c11d79f2 KB |
722 | |
723 | gcount = 0; | |
724 | iterate_over_threads (giter_count, &gcount); | |
725 | g = gbuf = (struct thread_info **) xmalloc (gcount * sizeof *gbuf); | |
726 | iterate_over_threads (giter_accum, &g); | |
727 | qsort (gbuf, gcount, sizeof *gbuf, gcmp); | |
728 | ||
0fe7bf7b | 729 | /* Apply differences between the two arrays to GDB's thread list. */ |
c11d79f2 KB |
730 | |
731 | infpid = PIDGET (inferior_ptid); | |
732 | for (pi = gi = 0; pi < pcount || gi < gcount;) | |
733 | { | |
c11d79f2 | 734 | if (pi == pcount) |
c11d79f2 | 735 | { |
42cc437f | 736 | delete_thread (gbuf[gi]->ptid); |
c11d79f2 KB |
737 | gi++; |
738 | } | |
42cc437f | 739 | else if (gi == gcount) |
c11d79f2 | 740 | { |
42cc437f | 741 | thread = add_thread (BUILD_THREAD (pbuf[pi].pthid, infpid)); |
c11d79f2 | 742 | thread->private = xmalloc (sizeof (struct private_thread_info)); |
42cc437f KB |
743 | thread->private->pdtid = pbuf[pi].pdtid; |
744 | thread->private->tid = pbuf[pi].tid; | |
c11d79f2 KB |
745 | pi++; |
746 | } | |
42cc437f KB |
747 | else |
748 | { | |
749 | ptid_t pptid, gptid; | |
750 | int cmp_result; | |
751 | ||
752 | pptid = BUILD_THREAD (pbuf[pi].pthid, infpid); | |
753 | gptid = gbuf[gi]->ptid; | |
754 | pdtid = pbuf[pi].pdtid; | |
755 | tid = pbuf[pi].tid; | |
c11d79f2 | 756 | |
42cc437f KB |
757 | cmp_result = ptid_cmp (pptid, gptid); |
758 | ||
759 | if (cmp_result == 0) | |
760 | { | |
761 | gbuf[gi]->private->pdtid = pdtid; | |
762 | gbuf[gi]->private->tid = tid; | |
763 | pi++; | |
764 | gi++; | |
765 | } | |
766 | else if (cmp_result > 0) | |
767 | { | |
768 | delete_thread (gptid); | |
769 | gi++; | |
770 | } | |
771 | else | |
772 | { | |
773 | thread = add_thread (pptid); | |
774 | thread->private = xmalloc (sizeof (struct private_thread_info)); | |
775 | thread->private->pdtid = pdtid; | |
776 | thread->private->tid = tid; | |
777 | pi++; | |
778 | } | |
779 | } | |
c11d79f2 KB |
780 | } |
781 | ||
782 | xfree (pbuf); | |
783 | xfree (gbuf); | |
784 | } | |
785 | ||
9ad7bec7 JB |
786 | /* Iterate_over_threads() callback for locating a thread, using |
787 | the TID of its associated kernel thread. */ | |
c11d79f2 KB |
788 | |
789 | static int | |
9ad7bec7 | 790 | iter_tid (struct thread_info *thread, void *tidp) |
c11d79f2 | 791 | { |
9ad7bec7 | 792 | const pthdb_tid_t tid = *(pthdb_tid_t *)tidp; |
c11d79f2 | 793 | |
9ad7bec7 | 794 | return (thread->private->tid == tid); |
c11d79f2 KB |
795 | } |
796 | ||
0fe7bf7b MS |
797 | /* Synchronize libpthdebug's state with the inferior and with GDB, |
798 | generate a composite process/thread <pid> for the current thread, | |
799 | set inferior_ptid to <pid> if SET_INFPID, and return <pid>. */ | |
c11d79f2 KB |
800 | |
801 | static ptid_t | |
802 | pd_update (int set_infpid) | |
803 | { | |
804 | int status; | |
805 | ptid_t ptid; | |
9ad7bec7 JB |
806 | pthdb_tid_t tid; |
807 | struct thread_info *thread = NULL; | |
c11d79f2 KB |
808 | |
809 | if (!pd_active) | |
810 | return inferior_ptid; | |
811 | ||
812 | status = pthdb_session_update (pd_session); | |
813 | if (status != PTHDB_SUCCESS) | |
814 | return inferior_ptid; | |
815 | ||
816 | sync_threadlists (); | |
817 | ||
0fe7bf7b | 818 | /* Define "current thread" as one that just received a trap signal. */ |
c11d79f2 | 819 | |
9ad7bec7 JB |
820 | tid = get_signaled_thread (); |
821 | if (tid != 0) | |
822 | thread = iterate_over_threads (iter_tid, &tid); | |
c11d79f2 KB |
823 | if (!thread) |
824 | ptid = inferior_ptid; | |
825 | else | |
826 | { | |
827 | ptid = thread->ptid; | |
828 | if (set_infpid) | |
829 | inferior_ptid = ptid; | |
830 | } | |
831 | return ptid; | |
832 | } | |
833 | ||
0fe7bf7b MS |
834 | /* Try to start debugging threads in the current process. |
835 | If successful and SET_INFPID, set inferior_ptid to reflect the | |
836 | current thread. */ | |
c11d79f2 KB |
837 | |
838 | static ptid_t | |
839 | pd_activate (int set_infpid) | |
840 | { | |
841 | int status; | |
842 | ||
843 | status = pthdb_session_init (PD_USER, arch64 ? PEM_64BIT : PEM_32BIT, | |
0fe7bf7b MS |
844 | PTHDB_FLAG_REGS, &pd_callbacks, |
845 | &pd_session); | |
c11d79f2 KB |
846 | if (status != PTHDB_SUCCESS) |
847 | { | |
848 | return inferior_ptid; | |
849 | } | |
850 | pd_active = 1; | |
851 | return pd_update (set_infpid); | |
852 | } | |
853 | ||
0fe7bf7b | 854 | /* Undo the effects of pd_activate(). */ |
c11d79f2 KB |
855 | |
856 | static void | |
857 | pd_deactivate (void) | |
858 | { | |
859 | if (!pd_active) | |
860 | return; | |
861 | pthdb_session_destroy (pd_session); | |
862 | ||
863 | pid_to_prc (&inferior_ptid); | |
864 | pd_active = 0; | |
865 | } | |
866 | ||
0fe7bf7b MS |
867 | /* An object file has just been loaded. Check whether the current |
868 | application is pthreaded, and if so, prepare for thread debugging. */ | |
c11d79f2 KB |
869 | |
870 | static void | |
871 | pd_enable (void) | |
872 | { | |
873 | int status; | |
874 | char *stub_name; | |
875 | struct minimal_symbol *ms; | |
876 | ||
0fe7bf7b | 877 | /* Don't initialize twice. */ |
c11d79f2 KB |
878 | if (pd_able) |
879 | return; | |
880 | ||
0fe7bf7b | 881 | /* Check application word size. */ |
3acba339 | 882 | arch64 = register_size (current_gdbarch, 0) == 8; |
c11d79f2 | 883 | |
0fe7bf7b | 884 | /* Check whether the application is pthreaded. */ |
c11d79f2 | 885 | stub_name = NULL; |
0fe7bf7b MS |
886 | status = pthdb_session_pthreaded (PD_USER, PTHDB_FLAG_REGS, |
887 | &pd_callbacks, &stub_name); | |
888 | if ((status != PTHDB_SUCCESS && | |
889 | status != PTHDB_NOT_PTHREADED) || !stub_name) | |
c11d79f2 KB |
890 | return; |
891 | ||
0fe7bf7b | 892 | /* Set a breakpoint on the returned stub function. */ |
c11d79f2 KB |
893 | if (!(ms = lookup_minimal_symbol (stub_name, NULL, NULL))) |
894 | return; | |
895 | pd_brk_addr = SYMBOL_VALUE_ADDRESS (ms); | |
896 | if (!create_thread_event_breakpoint (pd_brk_addr)) | |
897 | return; | |
898 | ||
0fe7bf7b | 899 | /* Prepare for thread debugging. */ |
206d3d3c KB |
900 | base_target = current_target; |
901 | push_target (&aix_thread_ops); | |
c11d79f2 KB |
902 | pd_able = 1; |
903 | ||
0fe7bf7b MS |
904 | /* If we're debugging a core file or an attached inferior, the |
905 | pthread library may already have been initialized, so try to | |
906 | activate thread debugging. */ | |
c11d79f2 KB |
907 | pd_activate (1); |
908 | } | |
909 | ||
0fe7bf7b | 910 | /* Undo the effects of pd_enable(). */ |
c11d79f2 KB |
911 | |
912 | static void | |
913 | pd_disable (void) | |
914 | { | |
915 | if (!pd_able) | |
916 | return; | |
917 | if (pd_active) | |
918 | pd_deactivate (); | |
919 | pd_able = 0; | |
206d3d3c | 920 | unpush_target (&aix_thread_ops); |
c11d79f2 KB |
921 | } |
922 | ||
06d3b283 | 923 | /* new_objfile observer callback. |
c11d79f2 | 924 | |
0fe7bf7b MS |
925 | If OBJFILE is non-null, check whether a threaded application is |
926 | being debugged, and if so, prepare for thread debugging. | |
c11d79f2 | 927 | |
0fe7bf7b | 928 | If OBJFILE is null, stop debugging threads. */ |
c11d79f2 KB |
929 | |
930 | static void | |
931 | new_objfile (struct objfile *objfile) | |
932 | { | |
933 | if (objfile) | |
934 | pd_enable (); | |
935 | else | |
936 | pd_disable (); | |
c11d79f2 KB |
937 | } |
938 | ||
0fe7bf7b | 939 | /* Attach to process specified by ARGS. */ |
c11d79f2 KB |
940 | |
941 | static void | |
136d6dae | 942 | aix_thread_attach (struct target_ops *ops, char *args, int from_tty) |
c11d79f2 | 943 | { |
136d6dae | 944 | base_target.to_attach (&base_target, args, from_tty); |
c11d79f2 KB |
945 | pd_activate (1); |
946 | } | |
947 | ||
206d3d3c | 948 | /* Detach from the process attached to by aix_thread_attach(). */ |
c11d79f2 KB |
949 | |
950 | static void | |
136d6dae | 951 | aix_thread_detach (struct target_ops *ops, char *args, int from_tty) |
c11d79f2 | 952 | { |
6c0c456d | 953 | pd_disable (); |
136d6dae | 954 | base_target.to_detach (&base_target, args, from_tty); |
c11d79f2 KB |
955 | } |
956 | ||
957 | /* Tell the inferior process to continue running thread PID if != -1 | |
0fe7bf7b | 958 | and all threads otherwise. */ |
c11d79f2 KB |
959 | |
960 | static void | |
206d3d3c | 961 | aix_thread_resume (ptid_t ptid, int step, enum target_signal sig) |
c11d79f2 KB |
962 | { |
963 | struct thread_info *thread; | |
964 | pthdb_tid_t tid[2]; | |
965 | ||
966 | if (!PD_TID (ptid)) | |
14fa3751 KB |
967 | { |
968 | struct cleanup *cleanup = save_inferior_ptid (); | |
969 | inferior_ptid = pid_to_ptid (PIDGET (inferior_ptid)); | |
206d3d3c | 970 | base_target.to_resume (ptid, step, sig); |
14fa3751 KB |
971 | do_cleanups (cleanup); |
972 | } | |
c11d79f2 KB |
973 | else |
974 | { | |
975 | thread = find_thread_pid (ptid); | |
976 | if (!thread) | |
edefbb7c | 977 | error (_("aix-thread resume: unknown pthread %ld"), |
0fe7bf7b | 978 | TIDGET (ptid)); |
c11d79f2 KB |
979 | |
980 | tid[0] = thread->private->tid; | |
981 | if (tid[0] == PTHDB_INVALID_TID) | |
edefbb7c | 982 | error (_("aix-thread resume: no tid for pthread %ld"), |
0fe7bf7b | 983 | TIDGET (ptid)); |
c11d79f2 KB |
984 | tid[1] = 0; |
985 | ||
986 | if (arch64) | |
0fe7bf7b | 987 | ptrace64aix (PTT_CONTINUE, tid[0], 1, |
ed1bd5f5 | 988 | target_signal_to_host (sig), (void *) tid); |
c11d79f2 KB |
989 | else |
990 | ptrace32 (PTT_CONTINUE, tid[0], (int *) 1, | |
ed1bd5f5 | 991 | target_signal_to_host (sig), (void *) tid); |
c11d79f2 KB |
992 | } |
993 | } | |
994 | ||
0fe7bf7b MS |
995 | /* Wait for thread/process ID if != -1 or for any thread otherwise. |
996 | If an error occurs, return -1, else return the pid of the stopped | |
997 | thread. */ | |
c11d79f2 KB |
998 | |
999 | static ptid_t | |
117de6a9 PA |
1000 | aix_thread_wait (struct target_ops *ops, |
1001 | ptid_t ptid, struct target_waitstatus *status) | |
c11d79f2 | 1002 | { |
14fa3751 KB |
1003 | struct cleanup *cleanup = save_inferior_ptid (); |
1004 | ||
c11d79f2 | 1005 | pid_to_prc (&ptid); |
14fa3751 KB |
1006 | |
1007 | inferior_ptid = pid_to_ptid (PIDGET (inferior_ptid)); | |
117de6a9 | 1008 | ptid = base_target.to_wait (&base_target, ptid, status); |
14fa3751 KB |
1009 | do_cleanups (cleanup); |
1010 | ||
c11d79f2 KB |
1011 | if (PIDGET (ptid) == -1) |
1012 | return pid_to_ptid (-1); | |
1013 | ||
0fe7bf7b | 1014 | /* Check whether libpthdebug might be ready to be initialized. */ |
515630c5 UW |
1015 | if (!pd_active && status->kind == TARGET_WAITKIND_STOPPED |
1016 | && status->value.sig == TARGET_SIGNAL_TRAP) | |
1017 | { | |
1018 | struct regcache *regcache = get_thread_regcache (ptid); | |
1019 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
1020 | ||
1021 | if (regcache_read_pc (regcache) | |
1022 | - gdbarch_decr_pc_after_break (gdbarch) == pd_brk_addr) | |
1023 | return pd_activate (0); | |
1024 | } | |
c11d79f2 KB |
1025 | |
1026 | return pd_update (0); | |
1027 | } | |
1028 | ||
0fe7bf7b | 1029 | /* Record that the 64-bit general-purpose registers contain VALS. */ |
c11d79f2 KB |
1030 | |
1031 | static void | |
647478e0 | 1032 | supply_gprs64 (struct regcache *regcache, uint64_t *vals) |
c11d79f2 | 1033 | { |
c7f30c7a | 1034 | struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache)); |
c11d79f2 KB |
1035 | int regno; |
1036 | ||
063715bf | 1037 | for (regno = 0; regno < ppc_num_gprs; regno++) |
647478e0 | 1038 | regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + regno, |
23a6d369 | 1039 | (char *) (vals + regno)); |
c11d79f2 KB |
1040 | } |
1041 | ||
0fe7bf7b | 1042 | /* Record that 32-bit register REGNO contains VAL. */ |
c11d79f2 KB |
1043 | |
1044 | static void | |
647478e0 | 1045 | supply_reg32 (struct regcache *regcache, int regno, uint32_t val) |
c11d79f2 | 1046 | { |
647478e0 | 1047 | regcache_raw_supply (regcache, regno, (char *) &val); |
c11d79f2 KB |
1048 | } |
1049 | ||
0fe7bf7b | 1050 | /* Record that the floating-point registers contain VALS. */ |
c11d79f2 KB |
1051 | |
1052 | static void | |
647478e0 | 1053 | supply_fprs (struct regcache *regcache, double *vals) |
c11d79f2 | 1054 | { |
c7f30c7a UW |
1055 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1056 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
c11d79f2 KB |
1057 | int regno; |
1058 | ||
383f0f5b JB |
1059 | /* This function should never be called on architectures without |
1060 | floating-point registers. */ | |
c7f30c7a | 1061 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1062 | |
063715bf | 1063 | for (regno = 0; regno < ppc_num_fprs; regno++) |
647478e0 | 1064 | regcache_raw_supply (regcache, regno + tdep->ppc_fp0_regnum, |
23a6d369 | 1065 | (char *) (vals + regno)); |
c11d79f2 KB |
1066 | } |
1067 | ||
f1a91342 KB |
1068 | /* Predicate to test whether given register number is a "special" register. */ |
1069 | static int | |
9970f04b | 1070 | special_register_p (struct gdbarch *gdbarch, int regno) |
f1a91342 | 1071 | { |
9970f04b | 1072 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1073 | |
9970f04b | 1074 | return regno == gdbarch_pc_regnum (gdbarch) |
f1a91342 KB |
1075 | || regno == tdep->ppc_ps_regnum |
1076 | || regno == tdep->ppc_cr_regnum | |
1077 | || regno == tdep->ppc_lr_regnum | |
1078 | || regno == tdep->ppc_ctr_regnum | |
1079 | || regno == tdep->ppc_xer_regnum | |
383f0f5b | 1080 | || (tdep->ppc_fpscr_regnum >= 0 && regno == tdep->ppc_fpscr_regnum) |
f1a91342 KB |
1081 | || (tdep->ppc_mq_regnum >= 0 && regno == tdep->ppc_mq_regnum); |
1082 | } | |
1083 | ||
1084 | ||
0fe7bf7b MS |
1085 | /* Record that the special registers contain the specified 64-bit and |
1086 | 32-bit values. */ | |
c11d79f2 KB |
1087 | |
1088 | static void | |
647478e0 UW |
1089 | supply_sprs64 (struct regcache *regcache, |
1090 | uint64_t iar, uint64_t msr, uint32_t cr, | |
0e061eef KB |
1091 | uint64_t lr, uint64_t ctr, uint32_t xer, |
1092 | uint32_t fpscr) | |
c11d79f2 | 1093 | { |
c7f30c7a UW |
1094 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1095 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 | 1096 | |
c7f30c7a | 1097 | regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch), |
3e8c568d | 1098 | (char *) &iar); |
647478e0 UW |
1099 | regcache_raw_supply (regcache, tdep->ppc_ps_regnum, (char *) &msr); |
1100 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, (char *) &cr); | |
1101 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, (char *) &lr); | |
1102 | regcache_raw_supply (regcache, tdep->ppc_ctr_regnum, (char *) &ctr); | |
1103 | regcache_raw_supply (regcache, tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1104 | if (tdep->ppc_fpscr_regnum >= 0) |
647478e0 | 1105 | regcache_raw_supply (regcache, tdep->ppc_fpscr_regnum, |
23a6d369 | 1106 | (char *) &fpscr); |
c11d79f2 KB |
1107 | } |
1108 | ||
0fe7bf7b MS |
1109 | /* Record that the special registers contain the specified 32-bit |
1110 | values. */ | |
c11d79f2 KB |
1111 | |
1112 | static void | |
647478e0 UW |
1113 | supply_sprs32 (struct regcache *regcache, |
1114 | uint32_t iar, uint32_t msr, uint32_t cr, | |
0e061eef KB |
1115 | uint32_t lr, uint32_t ctr, uint32_t xer, |
1116 | uint32_t fpscr) | |
c11d79f2 | 1117 | { |
c7f30c7a UW |
1118 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1119 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 | 1120 | |
c7f30c7a | 1121 | regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch), |
3e8c568d | 1122 | (char *) &iar); |
647478e0 UW |
1123 | regcache_raw_supply (regcache, tdep->ppc_ps_regnum, (char *) &msr); |
1124 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, (char *) &cr); | |
1125 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, (char *) &lr); | |
1126 | regcache_raw_supply (regcache, tdep->ppc_ctr_regnum, (char *) &ctr); | |
1127 | regcache_raw_supply (regcache, tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1128 | if (tdep->ppc_fpscr_regnum >= 0) |
647478e0 | 1129 | regcache_raw_supply (regcache, tdep->ppc_fpscr_regnum, |
23a6d369 | 1130 | (char *) &fpscr); |
c11d79f2 KB |
1131 | } |
1132 | ||
1133 | /* Fetch all registers from pthread PDTID, which doesn't have a kernel | |
1134 | thread. | |
1135 | ||
0fe7bf7b MS |
1136 | There's no way to query a single register from a non-kernel |
1137 | pthread, so there's no need for a single-register version of this | |
1138 | function. */ | |
c11d79f2 KB |
1139 | |
1140 | static void | |
647478e0 | 1141 | fetch_regs_user_thread (struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1142 | { |
c7f30c7a UW |
1143 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1144 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
c11d79f2 KB |
1145 | int status, i; |
1146 | pthdb_context_t ctx; | |
1147 | ||
8e2c28d4 | 1148 | if (debug_aix_thread) |
206d3d3c KB |
1149 | fprintf_unfiltered (gdb_stdlog, |
1150 | "fetch_regs_user_thread %lx\n", (long) pdtid); | |
c11d79f2 KB |
1151 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1152 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1153 | error (_("aix-thread: fetch_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1154 | pd_status2str (status)); |
c11d79f2 | 1155 | |
0fe7bf7b | 1156 | /* General-purpose registers. */ |
c11d79f2 KB |
1157 | |
1158 | if (arch64) | |
647478e0 | 1159 | supply_gprs64 (regcache, ctx.gpr); |
c11d79f2 | 1160 | else |
063715bf | 1161 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1162 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, ctx.gpr[i]); |
c11d79f2 | 1163 | |
0fe7bf7b | 1164 | /* Floating-point registers. */ |
c11d79f2 | 1165 | |
c7f30c7a | 1166 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1167 | supply_fprs (regcache, ctx.fpr); |
c11d79f2 | 1168 | |
0fe7bf7b | 1169 | /* Special registers. */ |
c11d79f2 KB |
1170 | |
1171 | if (arch64) | |
647478e0 UW |
1172 | supply_sprs64 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1173 | ctx.xer, ctx.fpscr); | |
c11d79f2 | 1174 | else |
647478e0 UW |
1175 | supply_sprs32 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1176 | ctx.xer, ctx.fpscr); | |
c11d79f2 KB |
1177 | } |
1178 | ||
0fe7bf7b MS |
1179 | /* Fetch register REGNO if != -1 or all registers otherwise from |
1180 | kernel thread TID. | |
c11d79f2 | 1181 | |
0fe7bf7b MS |
1182 | AIX provides a way to query all of a kernel thread's GPRs, FPRs, or |
1183 | SPRs, but there's no way to query individual registers within those | |
1184 | groups. Therefore, if REGNO != -1, this function fetches an entire | |
1185 | group. | |
c11d79f2 | 1186 | |
0fe7bf7b MS |
1187 | Unfortunately, kernel thread register queries often fail with |
1188 | EPERM, indicating that the thread is in kernel space. This breaks | |
1189 | backtraces of threads other than the current one. To make that | |
1190 | breakage obvious without throwing an error to top level (which is | |
1191 | bad e.g. during "info threads" output), zero registers that can't | |
1192 | be retrieved. */ | |
c11d79f2 KB |
1193 | |
1194 | static void | |
647478e0 UW |
1195 | fetch_regs_kernel_thread (struct regcache *regcache, int regno, |
1196 | pthdb_tid_t tid) | |
c11d79f2 | 1197 | { |
c7f30c7a UW |
1198 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1199 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
063715bf JB |
1200 | uint64_t gprs64[ppc_num_gprs]; |
1201 | uint32_t gprs32[ppc_num_gprs]; | |
1202 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
1203 | struct ptxsprs sprs64; |
1204 | struct ptsprs sprs32; | |
1205 | int i; | |
1206 | ||
8e2c28d4 KB |
1207 | if (debug_aix_thread) |
1208 | fprintf_unfiltered (gdb_stdlog, | |
206d3d3c KB |
1209 | "fetch_regs_kernel_thread tid=%lx regno=%d arch64=%d\n", |
1210 | (long) tid, regno, arch64); | |
c11d79f2 | 1211 | |
0fe7bf7b | 1212 | /* General-purpose registers. */ |
daf6dc85 JB |
1213 | if (regno == -1 |
1214 | || (tdep->ppc_gp0_regnum <= regno | |
1215 | && regno < tdep->ppc_gp0_regnum + ppc_num_gprs)) | |
c11d79f2 KB |
1216 | { |
1217 | if (arch64) | |
1218 | { | |
0fe7bf7b MS |
1219 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
1220 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 | 1221 | memset (gprs64, 0, sizeof (gprs64)); |
647478e0 | 1222 | supply_gprs64 (regcache, gprs64); |
c11d79f2 KB |
1223 | } |
1224 | else | |
1225 | { | |
1226 | if (!ptrace32 (PTT_READ_GPRS, tid, gprs32, 0, NULL)) | |
1227 | memset (gprs32, 0, sizeof (gprs32)); | |
063715bf | 1228 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1229 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, gprs32[i]); |
c11d79f2 KB |
1230 | } |
1231 | } | |
1232 | ||
0fe7bf7b | 1233 | /* Floating-point registers. */ |
c11d79f2 | 1234 | |
c7f30c7a | 1235 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1236 | && (regno == -1 |
1237 | || (regno >= tdep->ppc_fp0_regnum | |
1238 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 | 1239 | { |
ed1bd5f5 | 1240 | if (!ptrace32 (PTT_READ_FPRS, tid, (void *) fprs, 0, NULL)) |
c11d79f2 | 1241 | memset (fprs, 0, sizeof (fprs)); |
647478e0 | 1242 | supply_fprs (regcache, fprs); |
c11d79f2 KB |
1243 | } |
1244 | ||
0fe7bf7b | 1245 | /* Special-purpose registers. */ |
c11d79f2 | 1246 | |
9970f04b | 1247 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1248 | { |
1249 | if (arch64) | |
1250 | { | |
0fe7bf7b MS |
1251 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
1252 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 | 1253 | memset (&sprs64, 0, sizeof (sprs64)); |
647478e0 UW |
1254 | supply_sprs64 (regcache, sprs64.pt_iar, sprs64.pt_msr, |
1255 | sprs64.pt_cr, sprs64.pt_lr, sprs64.pt_ctr, | |
1256 | sprs64.pt_xer, sprs64.pt_fpscr); | |
c11d79f2 KB |
1257 | } |
1258 | else | |
1259 | { | |
c7f30c7a | 1260 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1261 | |
c11d79f2 KB |
1262 | if (!ptrace32 (PTT_READ_SPRS, tid, (int *) &sprs32, 0, NULL)) |
1263 | memset (&sprs32, 0, sizeof (sprs32)); | |
647478e0 | 1264 | supply_sprs32 (regcache, sprs32.pt_iar, sprs32.pt_msr, sprs32.pt_cr, |
0e061eef KB |
1265 | sprs32.pt_lr, sprs32.pt_ctr, sprs32.pt_xer, |
1266 | sprs32.pt_fpscr); | |
c11d79f2 | 1267 | |
f1a91342 | 1268 | if (tdep->ppc_mq_regnum >= 0) |
647478e0 | 1269 | regcache_raw_supply (regcache, tdep->ppc_mq_regnum, |
23a6d369 | 1270 | (char *) &sprs32.pt_mq); |
c11d79f2 KB |
1271 | } |
1272 | } | |
1273 | } | |
1274 | ||
1275 | /* Fetch register REGNO if != -1 or all registers otherwise in the | |
0fe7bf7b | 1276 | thread/process specified by inferior_ptid. */ |
c11d79f2 KB |
1277 | |
1278 | static void | |
56be3814 | 1279 | aix_thread_fetch_registers (struct regcache *regcache, int regno) |
c11d79f2 KB |
1280 | { |
1281 | struct thread_info *thread; | |
1282 | pthdb_tid_t tid; | |
1283 | ||
1284 | if (!PD_TID (inferior_ptid)) | |
56be3814 | 1285 | base_target.to_fetch_registers (regcache, regno); |
c11d79f2 KB |
1286 | else |
1287 | { | |
1288 | thread = find_thread_pid (inferior_ptid); | |
1289 | tid = thread->private->tid; | |
1290 | ||
1291 | if (tid == PTHDB_INVALID_TID) | |
56be3814 | 1292 | fetch_regs_user_thread (regcache, thread->private->pdtid); |
c11d79f2 | 1293 | else |
56be3814 | 1294 | fetch_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1295 | } |
1296 | } | |
1297 | ||
61c5da0b KB |
1298 | /* Store the gp registers into an array of uint32_t or uint64_t. */ |
1299 | ||
1300 | static void | |
647478e0 | 1301 | fill_gprs64 (const struct regcache *regcache, uint64_t *vals) |
61c5da0b | 1302 | { |
c7f30c7a | 1303 | struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache)); |
61c5da0b KB |
1304 | int regno; |
1305 | ||
daf6dc85 | 1306 | for (regno = 0; regno < ppc_num_gprs; regno++) |
647478e0 UW |
1307 | if (regcache_valid_p (regcache, tdep->ppc_gp0_regnum + regno)) |
1308 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + regno, | |
822c9732 | 1309 | vals + regno); |
61c5da0b KB |
1310 | } |
1311 | ||
1312 | static void | |
647478e0 | 1313 | fill_gprs32 (const struct regcache *regcache, uint32_t *vals) |
61c5da0b | 1314 | { |
c7f30c7a | 1315 | struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache)); |
61c5da0b KB |
1316 | int regno; |
1317 | ||
daf6dc85 | 1318 | for (regno = 0; regno < ppc_num_gprs; regno++) |
647478e0 UW |
1319 | if (regcache_valid_p (regcache, tdep->ppc_gp0_regnum + regno)) |
1320 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + regno, | |
822c9732 | 1321 | vals + regno); |
61c5da0b KB |
1322 | } |
1323 | ||
1324 | /* Store the floating point registers into a double array. */ | |
1325 | static void | |
647478e0 | 1326 | fill_fprs (const struct regcache *regcache, double *vals) |
61c5da0b | 1327 | { |
c7f30c7a UW |
1328 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1329 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
61c5da0b KB |
1330 | int regno; |
1331 | ||
383f0f5b JB |
1332 | /* This function should never be called on architectures without |
1333 | floating-point registers. */ | |
c7f30c7a | 1334 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1335 | |
366f009f JB |
1336 | for (regno = tdep->ppc_fp0_regnum; |
1337 | regno < tdep->ppc_fp0_regnum + ppc_num_fprs; | |
1338 | regno++) | |
647478e0 UW |
1339 | if (regcache_valid_p (regcache, regno)) |
1340 | regcache_raw_collect (regcache, regno, vals + regno); | |
61c5da0b KB |
1341 | } |
1342 | ||
c11d79f2 | 1343 | /* Store the special registers into the specified 64-bit and 32-bit |
0fe7bf7b | 1344 | locations. */ |
c11d79f2 KB |
1345 | |
1346 | static void | |
647478e0 UW |
1347 | fill_sprs64 (const struct regcache *regcache, |
1348 | uint64_t *iar, uint64_t *msr, uint32_t *cr, | |
0e061eef KB |
1349 | uint64_t *lr, uint64_t *ctr, uint32_t *xer, |
1350 | uint32_t *fpscr) | |
c11d79f2 | 1351 | { |
c7f30c7a UW |
1352 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1353 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 KB |
1354 | |
1355 | /* Verify that the size of the size of the IAR buffer is the | |
1356 | same as the raw size of the PC (in the register cache). If | |
1357 | they're not, then either GDB has been built incorrectly, or | |
1358 | there's some other kind of internal error. To be really safe, | |
1359 | we should check all of the sizes. */ | |
3e8c568d | 1360 | gdb_assert (sizeof (*iar) == register_size |
c7f30c7a | 1361 | (gdbarch, gdbarch_pc_regnum (gdbarch))); |
f1a91342 | 1362 | |
c7f30c7a UW |
1363 | if (regcache_valid_p (regcache, gdbarch_pc_regnum (gdbarch))) |
1364 | regcache_raw_collect (regcache, gdbarch_pc_regnum (gdbarch), iar); | |
647478e0 UW |
1365 | if (regcache_valid_p (regcache, tdep->ppc_ps_regnum)) |
1366 | regcache_raw_collect (regcache, tdep->ppc_ps_regnum, msr); | |
1367 | if (regcache_valid_p (regcache, tdep->ppc_cr_regnum)) | |
1368 | regcache_raw_collect (regcache, tdep->ppc_cr_regnum, cr); | |
1369 | if (regcache_valid_p (regcache, tdep->ppc_lr_regnum)) | |
1370 | regcache_raw_collect (regcache, tdep->ppc_lr_regnum, lr); | |
1371 | if (regcache_valid_p (regcache, tdep->ppc_ctr_regnum)) | |
1372 | regcache_raw_collect (regcache, tdep->ppc_ctr_regnum, ctr); | |
1373 | if (regcache_valid_p (regcache, tdep->ppc_xer_regnum)) | |
1374 | regcache_raw_collect (regcache, tdep->ppc_xer_regnum, xer); | |
383f0f5b | 1375 | if (tdep->ppc_fpscr_regnum >= 0 |
647478e0 UW |
1376 | && regcache_valid_p (regcache, tdep->ppc_fpscr_regnum)) |
1377 | regcache_raw_collect (regcache, tdep->ppc_fpscr_regnum, fpscr); | |
61c5da0b KB |
1378 | } |
1379 | ||
1380 | static void | |
647478e0 UW |
1381 | fill_sprs32 (const struct regcache *regcache, |
1382 | uint32_t *iar, uint32_t *msr, uint32_t *cr, | |
0d16ee5d UW |
1383 | uint32_t *lr, uint32_t *ctr, uint32_t *xer, |
1384 | uint32_t *fpscr) | |
61c5da0b | 1385 | { |
c7f30c7a UW |
1386 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1387 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 KB |
1388 | |
1389 | /* Verify that the size of the size of the IAR buffer is the | |
1390 | same as the raw size of the PC (in the register cache). If | |
1391 | they're not, then either GDB has been built incorrectly, or | |
1392 | there's some other kind of internal error. To be really safe, | |
0d16ee5d | 1393 | we should check all of the sizes. */ |
c7f30c7a UW |
1394 | gdb_assert (sizeof (*iar) == register_size (gdbarch, |
1395 | gdbarch_pc_regnum (gdbarch))); | |
f1a91342 | 1396 | |
c7f30c7a UW |
1397 | if (regcache_valid_p (regcache, gdbarch_pc_regnum (gdbarch))) |
1398 | regcache_raw_collect (regcache, gdbarch_pc_regnum (gdbarch), iar); | |
647478e0 UW |
1399 | if (regcache_valid_p (regcache, tdep->ppc_ps_regnum)) |
1400 | regcache_raw_collect (regcache, tdep->ppc_ps_regnum, msr); | |
1401 | if (regcache_valid_p (regcache, tdep->ppc_cr_regnum)) | |
1402 | regcache_raw_collect (regcache, tdep->ppc_cr_regnum, cr); | |
1403 | if (regcache_valid_p (regcache, tdep->ppc_lr_regnum)) | |
1404 | regcache_raw_collect (regcache, tdep->ppc_lr_regnum, lr); | |
1405 | if (regcache_valid_p (regcache, tdep->ppc_ctr_regnum)) | |
1406 | regcache_raw_collect (regcache, tdep->ppc_ctr_regnum, ctr); | |
1407 | if (regcache_valid_p (regcache, tdep->ppc_xer_regnum)) | |
1408 | regcache_raw_collect (regcache, tdep->ppc_xer_regnum, xer); | |
383f0f5b | 1409 | if (tdep->ppc_fpscr_regnum >= 0 |
647478e0 UW |
1410 | && regcache_valid_p (regcache, tdep->ppc_fpscr_regnum)) |
1411 | regcache_raw_collect (regcache, tdep->ppc_fpscr_regnum, fpscr); | |
c11d79f2 KB |
1412 | } |
1413 | ||
1414 | /* Store all registers into pthread PDTID, which doesn't have a kernel | |
1415 | thread. | |
1416 | ||
0fe7bf7b MS |
1417 | It's possible to store a single register into a non-kernel pthread, |
1418 | but I doubt it's worth the effort. */ | |
c11d79f2 KB |
1419 | |
1420 | static void | |
647478e0 | 1421 | store_regs_user_thread (const struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1422 | { |
c7f30c7a UW |
1423 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1424 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
c11d79f2 KB |
1425 | int status, i; |
1426 | pthdb_context_t ctx; | |
61c5da0b KB |
1427 | uint32_t int32; |
1428 | uint64_t int64; | |
1429 | double dbl; | |
c11d79f2 | 1430 | |
8e2c28d4 | 1431 | if (debug_aix_thread) |
0fe7bf7b | 1432 | fprintf_unfiltered (gdb_stdlog, |
206d3d3c | 1433 | "store_regs_user_thread %lx\n", (long) pdtid); |
c11d79f2 | 1434 | |
0fe7bf7b MS |
1435 | /* Retrieve the thread's current context for its non-register |
1436 | values. */ | |
c11d79f2 KB |
1437 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1438 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1439 | error (_("aix-thread: store_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1440 | pd_status2str (status)); |
c11d79f2 | 1441 | |
61c5da0b | 1442 | /* Collect general-purpose register values from the regcache. */ |
c11d79f2 | 1443 | |
063715bf | 1444 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1445 | if (regcache_valid_p (regcache, tdep->ppc_gp0_regnum + i)) |
cbe92db4 KB |
1446 | { |
1447 | if (arch64) | |
1448 | { | |
647478e0 | 1449 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + i, |
822c9732 | 1450 | (void *) &int64); |
cbe92db4 KB |
1451 | ctx.gpr[i] = int64; |
1452 | } | |
1453 | else | |
1454 | { | |
647478e0 | 1455 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + i, |
822c9732 | 1456 | (void *) &int32); |
cbe92db4 KB |
1457 | ctx.gpr[i] = int32; |
1458 | } | |
1459 | } | |
c11d79f2 | 1460 | |
61c5da0b | 1461 | /* Collect floating-point register values from the regcache. */ |
c7f30c7a | 1462 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1463 | fill_fprs (regcache, ctx.fpr); |
c11d79f2 | 1464 | |
61c5da0b KB |
1465 | /* Special registers (always kept in ctx as 64 bits). */ |
1466 | if (arch64) | |
1467 | { | |
647478e0 UW |
1468 | fill_sprs64 (regcache, &ctx.iar, &ctx.msr, &ctx.cr, &ctx.lr, &ctx.ctr, |
1469 | &ctx.xer, &ctx.fpscr); | |
61c5da0b KB |
1470 | } |
1471 | else | |
1472 | { | |
1473 | /* Problem: ctx.iar etc. are 64 bits, but raw_registers are 32. | |
0d16ee5d UW |
1474 | Solution: use 32-bit temp variables. */ |
1475 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1476 | tmp_fpscr; | |
61c5da0b | 1477 | |
647478e0 UW |
1478 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, &tmp_ctr, |
1479 | &tmp_xer, &tmp_fpscr); | |
c7f30c7a | 1480 | if (regcache_valid_p (regcache, gdbarch_pc_regnum (gdbarch))) |
cbe92db4 | 1481 | ctx.iar = tmp_iar; |
647478e0 | 1482 | if (regcache_valid_p (regcache, tdep->ppc_ps_regnum)) |
cbe92db4 | 1483 | ctx.msr = tmp_msr; |
647478e0 | 1484 | if (regcache_valid_p (regcache, tdep->ppc_cr_regnum)) |
cbe92db4 | 1485 | ctx.cr = tmp_cr; |
647478e0 | 1486 | if (regcache_valid_p (regcache, tdep->ppc_lr_regnum)) |
cbe92db4 | 1487 | ctx.lr = tmp_lr; |
647478e0 | 1488 | if (regcache_valid_p (regcache, tdep->ppc_ctr_regnum)) |
cbe92db4 | 1489 | ctx.ctr = tmp_ctr; |
647478e0 | 1490 | if (regcache_valid_p (regcache, tdep->ppc_xer_regnum)) |
cbe92db4 | 1491 | ctx.xer = tmp_xer; |
647478e0 | 1492 | if (regcache_valid_p (regcache, tdep->ppc_xer_regnum)) |
0e061eef | 1493 | ctx.fpscr = tmp_fpscr; |
61c5da0b | 1494 | } |
c11d79f2 KB |
1495 | |
1496 | status = pthdb_pthread_setcontext (pd_session, pdtid, &ctx); | |
1497 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1498 | error (_("aix-thread: store_registers: pthdb_pthread_setcontext returned %s"), |
14fa3751 | 1499 | pd_status2str (status)); |
c11d79f2 KB |
1500 | } |
1501 | ||
0fe7bf7b MS |
1502 | /* Store register REGNO if != -1 or all registers otherwise into |
1503 | kernel thread TID. | |
c11d79f2 | 1504 | |
0fe7bf7b MS |
1505 | AIX provides a way to set all of a kernel thread's GPRs, FPRs, or |
1506 | SPRs, but there's no way to set individual registers within those | |
1507 | groups. Therefore, if REGNO != -1, this function stores an entire | |
1508 | group. */ | |
c11d79f2 KB |
1509 | |
1510 | static void | |
647478e0 UW |
1511 | store_regs_kernel_thread (const struct regcache *regcache, int regno, |
1512 | pthdb_tid_t tid) | |
c11d79f2 | 1513 | { |
c7f30c7a UW |
1514 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1515 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
063715bf JB |
1516 | uint64_t gprs64[ppc_num_gprs]; |
1517 | uint32_t gprs32[ppc_num_gprs]; | |
1518 | double fprs[ppc_num_fprs]; | |
c11d79f2 | 1519 | struct ptxsprs sprs64; |
61c5da0b KB |
1520 | struct ptsprs sprs32; |
1521 | int i; | |
c11d79f2 | 1522 | |
8e2c28d4 | 1523 | if (debug_aix_thread) |
206d3d3c KB |
1524 | fprintf_unfiltered (gdb_stdlog, |
1525 | "store_regs_kernel_thread tid=%lx regno=%d\n", | |
1526 | (long) tid, regno); | |
c11d79f2 | 1527 | |
0fe7bf7b | 1528 | /* General-purpose registers. */ |
daf6dc85 JB |
1529 | if (regno == -1 |
1530 | || (tdep->ppc_gp0_regnum <= regno | |
1531 | && regno < tdep->ppc_gp0_regnum + ppc_num_fprs)) | |
c11d79f2 | 1532 | { |
c11d79f2 | 1533 | if (arch64) |
61c5da0b | 1534 | { |
cbe92db4 KB |
1535 | /* Pre-fetch: some regs may not be in the cache. */ |
1536 | ptrace64aix (PTT_READ_GPRS, tid, (unsigned long) gprs64, 0, NULL); | |
647478e0 | 1537 | fill_gprs64 (regcache, gprs64); |
61c5da0b KB |
1538 | ptrace64aix (PTT_WRITE_GPRS, tid, (unsigned long) gprs64, 0, NULL); |
1539 | } | |
c11d79f2 | 1540 | else |
61c5da0b | 1541 | { |
cbe92db4 KB |
1542 | /* Pre-fetch: some regs may not be in the cache. */ |
1543 | ptrace32 (PTT_READ_GPRS, tid, gprs32, 0, NULL); | |
647478e0 | 1544 | fill_gprs32 (regcache, gprs32); |
61c5da0b KB |
1545 | ptrace32 (PTT_WRITE_GPRS, tid, gprs32, 0, NULL); |
1546 | } | |
c11d79f2 KB |
1547 | } |
1548 | ||
0fe7bf7b | 1549 | /* Floating-point registers. */ |
c11d79f2 | 1550 | |
c7f30c7a | 1551 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1552 | && (regno == -1 |
1553 | || (regno >= tdep->ppc_fp0_regnum | |
1554 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 | 1555 | { |
cbe92db4 | 1556 | /* Pre-fetch: some regs may not be in the cache. */ |
ed1bd5f5 | 1557 | ptrace32 (PTT_READ_FPRS, tid, (void *) fprs, 0, NULL); |
647478e0 | 1558 | fill_fprs (regcache, fprs); |
ed1bd5f5 | 1559 | ptrace32 (PTT_WRITE_FPRS, tid, (void *) fprs, 0, NULL); |
c11d79f2 KB |
1560 | } |
1561 | ||
0fe7bf7b | 1562 | /* Special-purpose registers. */ |
c11d79f2 | 1563 | |
9970f04b | 1564 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1565 | { |
1566 | if (arch64) | |
1567 | { | |
cbe92db4 | 1568 | /* Pre-fetch: some registers won't be in the cache. */ |
0fe7bf7b MS |
1569 | ptrace64aix (PTT_READ_SPRS, tid, |
1570 | (unsigned long) &sprs64, 0, NULL); | |
647478e0 UW |
1571 | fill_sprs64 (regcache, &sprs64.pt_iar, &sprs64.pt_msr, |
1572 | &sprs64.pt_cr, &sprs64.pt_lr, &sprs64.pt_ctr, | |
1573 | &sprs64.pt_xer, &sprs64.pt_fpscr); | |
0fe7bf7b MS |
1574 | ptrace64aix (PTT_WRITE_SPRS, tid, |
1575 | (unsigned long) &sprs64, 0, NULL); | |
c11d79f2 KB |
1576 | } |
1577 | else | |
1578 | { | |
0d16ee5d UW |
1579 | /* The contents of "struct ptspr" were declared as "unsigned |
1580 | long" up to AIX 5.2, but are "unsigned int" since 5.3. | |
1581 | Use temporaries to work around this problem. Also, add an | |
1582 | assert here to make sure we fail if the system header files | |
1583 | use "unsigned long", and the size of that type is not what | |
1584 | the headers expect. */ | |
1585 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1586 | tmp_fpscr; | |
1587 | ||
1588 | gdb_assert (sizeof (sprs32.pt_iar) == 4); | |
1589 | ||
cbe92db4 | 1590 | /* Pre-fetch: some registers won't be in the cache. */ |
c11d79f2 KB |
1591 | ptrace32 (PTT_READ_SPRS, tid, (int *) &sprs32, 0, NULL); |
1592 | ||
647478e0 UW |
1593 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, |
1594 | &tmp_ctr, &tmp_xer, &tmp_fpscr); | |
0d16ee5d UW |
1595 | |
1596 | sprs32.pt_iar = tmp_iar; | |
1597 | sprs32.pt_msr = tmp_msr; | |
1598 | sprs32.pt_cr = tmp_cr; | |
1599 | sprs32.pt_lr = tmp_lr; | |
1600 | sprs32.pt_ctr = tmp_ctr; | |
1601 | sprs32.pt_xer = tmp_xer; | |
1602 | sprs32.pt_fpscr = tmp_fpscr; | |
c11d79f2 | 1603 | |
f1a91342 | 1604 | if (tdep->ppc_mq_regnum >= 0) |
647478e0 UW |
1605 | if (regcache_valid_p (regcache, tdep->ppc_mq_regnum)) |
1606 | regcache_raw_collect (regcache, tdep->ppc_mq_regnum, | |
822c9732 | 1607 | &sprs32.pt_mq); |
c11d79f2 KB |
1608 | |
1609 | ptrace32 (PTT_WRITE_SPRS, tid, (int *) &sprs32, 0, NULL); | |
1610 | } | |
1611 | } | |
1612 | } | |
1613 | ||
0fe7bf7b MS |
1614 | /* Store gdb's current view of the register set into the |
1615 | thread/process specified by inferior_ptid. */ | |
c11d79f2 KB |
1616 | |
1617 | static void | |
56be3814 | 1618 | aix_thread_store_registers (struct regcache *regcache, int regno) |
c11d79f2 KB |
1619 | { |
1620 | struct thread_info *thread; | |
1621 | pthdb_tid_t tid; | |
1622 | ||
1623 | if (!PD_TID (inferior_ptid)) | |
56be3814 | 1624 | base_target.to_store_registers (regcache, regno); |
c11d79f2 KB |
1625 | else |
1626 | { | |
1627 | thread = find_thread_pid (inferior_ptid); | |
1628 | tid = thread->private->tid; | |
1629 | ||
1630 | if (tid == PTHDB_INVALID_TID) | |
56be3814 | 1631 | store_regs_user_thread (regcache, thread->private->pdtid); |
c11d79f2 | 1632 | else |
56be3814 | 1633 | store_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1634 | } |
1635 | } | |
1636 | ||
037a727e UW |
1637 | /* Attempt a transfer all LEN bytes starting at OFFSET between the |
1638 | inferior's OBJECT:ANNEX space and GDB's READBUF/WRITEBUF buffer. | |
1639 | Return the number of bytes actually transferred. */ | |
1640 | ||
1641 | static LONGEST | |
1642 | aix_thread_xfer_partial (struct target_ops *ops, enum target_object object, | |
1643 | const char *annex, gdb_byte *readbuf, | |
1644 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
c11d79f2 | 1645 | { |
037a727e UW |
1646 | struct cleanup *old_chain = save_inferior_ptid (); |
1647 | LONGEST xfer; | |
14fa3751 KB |
1648 | |
1649 | inferior_ptid = pid_to_ptid (PIDGET (inferior_ptid)); | |
037a727e UW |
1650 | xfer = base_target.to_xfer_partial (ops, object, annex, |
1651 | readbuf, writebuf, offset, len); | |
c11d79f2 | 1652 | |
037a727e UW |
1653 | do_cleanups (old_chain); |
1654 | return xfer; | |
c11d79f2 KB |
1655 | } |
1656 | ||
0fe7bf7b | 1657 | /* Kill and forget about the inferior process. */ |
c11d79f2 KB |
1658 | |
1659 | static void | |
206d3d3c | 1660 | aix_thread_kill (void) |
c11d79f2 | 1661 | { |
14fa3751 KB |
1662 | struct cleanup *cleanup = save_inferior_ptid (); |
1663 | ||
1664 | inferior_ptid = pid_to_ptid (PIDGET (inferior_ptid)); | |
206d3d3c | 1665 | base_target.to_kill (); |
14fa3751 | 1666 | do_cleanups (cleanup); |
c11d79f2 KB |
1667 | } |
1668 | ||
0fe7bf7b | 1669 | /* Clean up after the inferior exits. */ |
c11d79f2 KB |
1670 | |
1671 | static void | |
136d6dae | 1672 | aix_thread_mourn_inferior (struct target_ops *ops) |
c11d79f2 KB |
1673 | { |
1674 | pd_deactivate (); | |
136d6dae | 1675 | base_target.to_mourn_inferior (&base_target); |
c11d79f2 KB |
1676 | } |
1677 | ||
0fe7bf7b | 1678 | /* Return whether thread PID is still valid. */ |
c11d79f2 KB |
1679 | |
1680 | static int | |
206d3d3c | 1681 | aix_thread_thread_alive (ptid_t ptid) |
c11d79f2 KB |
1682 | { |
1683 | if (!PD_TID (ptid)) | |
206d3d3c | 1684 | return base_target.to_thread_alive (ptid); |
c11d79f2 | 1685 | |
0fe7bf7b MS |
1686 | /* We update the thread list every time the child stops, so all |
1687 | valid threads should be in the thread list. */ | |
c11d79f2 KB |
1688 | return in_thread_list (ptid); |
1689 | } | |
1690 | ||
0fe7bf7b MS |
1691 | /* Return a printable representation of composite PID for use in |
1692 | "info threads" output. */ | |
c11d79f2 KB |
1693 | |
1694 | static char * | |
117de6a9 | 1695 | aix_thread_pid_to_str (struct target_ops *ops, ptid_t ptid) |
c11d79f2 KB |
1696 | { |
1697 | static char *ret = NULL; | |
1698 | ||
1699 | if (!PD_TID (ptid)) | |
117de6a9 | 1700 | return base_target.to_pid_to_str (&base_target, ptid); |
c11d79f2 KB |
1701 | |
1702 | /* Free previous return value; a new one will be allocated by | |
b435e160 | 1703 | xstrprintf(). */ |
c11d79f2 KB |
1704 | xfree (ret); |
1705 | ||
edefbb7c | 1706 | ret = xstrprintf (_("Thread %ld"), ptid_get_tid (ptid)); |
c11d79f2 KB |
1707 | return ret; |
1708 | } | |
1709 | ||
0fe7bf7b MS |
1710 | /* Return a printable representation of extra information about |
1711 | THREAD, for use in "info threads" output. */ | |
c11d79f2 KB |
1712 | |
1713 | static char * | |
206d3d3c | 1714 | aix_thread_extra_thread_info (struct thread_info *thread) |
c11d79f2 KB |
1715 | { |
1716 | struct ui_file *buf; | |
1717 | int status; | |
1718 | pthdb_pthread_t pdtid; | |
1719 | pthdb_tid_t tid; | |
1720 | pthdb_state_t state; | |
1721 | pthdb_suspendstate_t suspendstate; | |
1722 | pthdb_detachstate_t detachstate; | |
1723 | int cancelpend; | |
1724 | long length; | |
1725 | static char *ret = NULL; | |
1726 | ||
1727 | if (!PD_TID (thread->ptid)) | |
1728 | return NULL; | |
1729 | ||
1730 | buf = mem_fileopen (); | |
1731 | ||
1732 | pdtid = thread->private->pdtid; | |
1733 | tid = thread->private->tid; | |
1734 | ||
1735 | if (tid != PTHDB_INVALID_TID) | |
edefbb7c | 1736 | /* i18n: Like "thread-identifier %d, [state] running, suspended" */ |
0d16ee5d | 1737 | fprintf_unfiltered (buf, _("tid %d"), (int)tid); |
c11d79f2 KB |
1738 | |
1739 | status = pthdb_pthread_state (pd_session, pdtid, &state); | |
1740 | if (status != PTHDB_SUCCESS) | |
1741 | state = PST_NOTSUP; | |
1742 | fprintf_unfiltered (buf, ", %s", state2str (state)); | |
1743 | ||
0fe7bf7b MS |
1744 | status = pthdb_pthread_suspendstate (pd_session, pdtid, |
1745 | &suspendstate); | |
c11d79f2 | 1746 | if (status == PTHDB_SUCCESS && suspendstate == PSS_SUSPENDED) |
edefbb7c AC |
1747 | /* i18n: Like "Thread-Id %d, [state] running, suspended" */ |
1748 | fprintf_unfiltered (buf, _(", suspended")); | |
c11d79f2 | 1749 | |
0fe7bf7b MS |
1750 | status = pthdb_pthread_detachstate (pd_session, pdtid, |
1751 | &detachstate); | |
c11d79f2 | 1752 | if (status == PTHDB_SUCCESS && detachstate == PDS_DETACHED) |
edefbb7c AC |
1753 | /* i18n: Like "Thread-Id %d, [state] running, detached" */ |
1754 | fprintf_unfiltered (buf, _(", detached")); | |
c11d79f2 KB |
1755 | |
1756 | pthdb_pthread_cancelpend (pd_session, pdtid, &cancelpend); | |
1757 | if (status == PTHDB_SUCCESS && cancelpend) | |
edefbb7c AC |
1758 | /* i18n: Like "Thread-Id %d, [state] running, cancel pending" */ |
1759 | fprintf_unfiltered (buf, _(", cancel pending")); | |
c11d79f2 KB |
1760 | |
1761 | ui_file_write (buf, "", 1); | |
1762 | ||
1763 | xfree (ret); /* Free old buffer. */ | |
1764 | ||
1765 | ret = ui_file_xstrdup (buf, &length); | |
1766 | ui_file_delete (buf); | |
1767 | ||
1768 | return ret; | |
1769 | } | |
1770 | ||
206d3d3c | 1771 | /* Initialize target aix_thread_ops. */ |
c11d79f2 KB |
1772 | |
1773 | static void | |
206d3d3c | 1774 | init_aix_thread_ops (void) |
c11d79f2 | 1775 | { |
206d3d3c | 1776 | aix_thread_ops.to_shortname = "aix-threads"; |
edefbb7c AC |
1777 | aix_thread_ops.to_longname = _("AIX pthread support"); |
1778 | aix_thread_ops.to_doc = _("AIX pthread support"); | |
206d3d3c KB |
1779 | |
1780 | aix_thread_ops.to_attach = aix_thread_attach; | |
1781 | aix_thread_ops.to_detach = aix_thread_detach; | |
1782 | aix_thread_ops.to_resume = aix_thread_resume; | |
1783 | aix_thread_ops.to_wait = aix_thread_wait; | |
1784 | aix_thread_ops.to_fetch_registers = aix_thread_fetch_registers; | |
1785 | aix_thread_ops.to_store_registers = aix_thread_store_registers; | |
037a727e | 1786 | aix_thread_ops.to_xfer_partial = aix_thread_xfer_partial; |
206d3d3c | 1787 | /* No need for aix_thread_ops.to_create_inferior, because we activate thread |
0fe7bf7b | 1788 | debugging when the inferior reaches pd_brk_addr. */ |
206d3d3c KB |
1789 | aix_thread_ops.to_kill = aix_thread_kill; |
1790 | aix_thread_ops.to_mourn_inferior = aix_thread_mourn_inferior; | |
1791 | aix_thread_ops.to_thread_alive = aix_thread_thread_alive; | |
1792 | aix_thread_ops.to_pid_to_str = aix_thread_pid_to_str; | |
1793 | aix_thread_ops.to_extra_thread_info = aix_thread_extra_thread_info; | |
1794 | aix_thread_ops.to_stratum = thread_stratum; | |
1795 | aix_thread_ops.to_magic = OPS_MAGIC; | |
c11d79f2 KB |
1796 | } |
1797 | ||
1798 | /* Module startup initialization function, automagically called by | |
0fe7bf7b | 1799 | init.c. */ |
c11d79f2 KB |
1800 | |
1801 | void | |
1802 | _initialize_aix_thread (void) | |
1803 | { | |
206d3d3c KB |
1804 | init_aix_thread_ops (); |
1805 | add_target (&aix_thread_ops); | |
c11d79f2 | 1806 | |
0fe7bf7b | 1807 | /* Notice when object files get loaded and unloaded. */ |
06d3b283 | 1808 | observer_attach_new_objfile (new_objfile); |
8e2c28d4 | 1809 | |
577b7047 | 1810 | add_setshow_boolean_cmd ("aix-thread", class_maintenance, &debug_aix_thread, |
edefbb7c AC |
1811 | _("Set debugging of AIX thread module."), |
1812 | _("Show debugging of AIX thread module."), | |
1813 | _("Enables debugging output (used to debug GDB)."), | |
2c5b56ce AC |
1814 | NULL, NULL, /* FIXME: i18n: Debugging of AIX thread module is \"%d\". */ |
1815 | &setdebuglist, &showdebuglist); | |
c11d79f2 | 1816 | } |