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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 | |
0fe7bf7b MS |
108 | /* Address of the function that libpthread will call when libpthdebug |
109 | is ready to be initialized. */ | |
c11d79f2 KB |
110 | |
111 | static CORE_ADDR pd_brk_addr; | |
112 | ||
0fe7bf7b | 113 | /* Whether the current application is debuggable by pthdb. */ |
c11d79f2 KB |
114 | |
115 | static int pd_able = 0; | |
116 | ||
0fe7bf7b | 117 | /* Whether a threaded application is being debugged. */ |
c11d79f2 KB |
118 | |
119 | static int pd_active = 0; | |
120 | ||
0fe7bf7b MS |
121 | /* Whether the current architecture is 64-bit. |
122 | Only valid when pd_able is true. */ | |
c11d79f2 KB |
123 | |
124 | static int arch64; | |
125 | ||
0fe7bf7b | 126 | /* Forward declarations for pthdb callbacks. */ |
c11d79f2 KB |
127 | |
128 | static int pdc_symbol_addrs (pthdb_user_t, pthdb_symbol_t *, int); | |
129 | static int pdc_read_data (pthdb_user_t, void *, pthdb_addr_t, size_t); | |
130 | static int pdc_write_data (pthdb_user_t, void *, pthdb_addr_t, size_t); | |
131 | static int pdc_read_regs (pthdb_user_t user, pthdb_tid_t tid, | |
0fe7bf7b MS |
132 | unsigned long long flags, |
133 | pthdb_context_t *context); | |
c11d79f2 | 134 | static int pdc_write_regs (pthdb_user_t user, pthdb_tid_t tid, |
0fe7bf7b MS |
135 | unsigned long long flags, |
136 | pthdb_context_t *context); | |
c11d79f2 KB |
137 | static int pdc_alloc (pthdb_user_t, size_t, void **); |
138 | static int pdc_realloc (pthdb_user_t, void *, size_t, void **); | |
139 | static int pdc_dealloc (pthdb_user_t, void *); | |
140 | ||
0fe7bf7b | 141 | /* pthdb callbacks. */ |
c11d79f2 KB |
142 | |
143 | static pthdb_callbacks_t pd_callbacks = { | |
144 | pdc_symbol_addrs, | |
145 | pdc_read_data, | |
146 | pdc_write_data, | |
147 | pdc_read_regs, | |
148 | pdc_write_regs, | |
149 | pdc_alloc, | |
150 | pdc_realloc, | |
151 | pdc_dealloc, | |
152 | NULL | |
153 | }; | |
154 | ||
0fe7bf7b | 155 | /* Current pthdb session. */ |
c11d79f2 KB |
156 | |
157 | static pthdb_session_t pd_session; | |
158 | ||
0fe7bf7b MS |
159 | /* Return a printable representation of pthdebug function return |
160 | STATUS. */ | |
c11d79f2 KB |
161 | |
162 | static char * | |
163 | pd_status2str (int status) | |
164 | { | |
165 | switch (status) | |
166 | { | |
167 | case PTHDB_SUCCESS: return "SUCCESS"; | |
168 | case PTHDB_NOSYS: return "NOSYS"; | |
169 | case PTHDB_NOTSUP: return "NOTSUP"; | |
170 | case PTHDB_BAD_VERSION: return "BAD_VERSION"; | |
171 | case PTHDB_BAD_USER: return "BAD_USER"; | |
172 | case PTHDB_BAD_SESSION: return "BAD_SESSION"; | |
173 | case PTHDB_BAD_MODE: return "BAD_MODE"; | |
174 | case PTHDB_BAD_FLAGS: return "BAD_FLAGS"; | |
175 | case PTHDB_BAD_CALLBACK: return "BAD_CALLBACK"; | |
176 | case PTHDB_BAD_POINTER: return "BAD_POINTER"; | |
177 | case PTHDB_BAD_CMD: return "BAD_CMD"; | |
178 | case PTHDB_BAD_PTHREAD: return "BAD_PTHREAD"; | |
179 | case PTHDB_BAD_ATTR: return "BAD_ATTR"; | |
180 | case PTHDB_BAD_MUTEX: return "BAD_MUTEX"; | |
181 | case PTHDB_BAD_MUTEXATTR: return "BAD_MUTEXATTR"; | |
182 | case PTHDB_BAD_COND: return "BAD_COND"; | |
183 | case PTHDB_BAD_CONDATTR: return "BAD_CONDATTR"; | |
184 | case PTHDB_BAD_RWLOCK: return "BAD_RWLOCK"; | |
185 | case PTHDB_BAD_RWLOCKATTR: return "BAD_RWLOCKATTR"; | |
186 | case PTHDB_BAD_KEY: return "BAD_KEY"; | |
187 | case PTHDB_BAD_PTID: return "BAD_PTID"; | |
188 | case PTHDB_BAD_TID: return "BAD_TID"; | |
189 | case PTHDB_CALLBACK: return "CALLBACK"; | |
190 | case PTHDB_CONTEXT: return "CONTEXT"; | |
191 | case PTHDB_HELD: return "HELD"; | |
192 | case PTHDB_NOT_HELD: return "NOT_HELD"; | |
193 | case PTHDB_MEMORY: return "MEMORY"; | |
194 | case PTHDB_NOT_PTHREADED: return "NOT_PTHREADED"; | |
195 | case PTHDB_SYMBOL: return "SYMBOL"; | |
196 | case PTHDB_NOT_AVAIL: return "NOT_AVAIL"; | |
197 | case PTHDB_INTERNAL: return "INTERNAL"; | |
198 | default: return "UNKNOWN"; | |
199 | } | |
200 | } | |
201 | ||
0fe7bf7b MS |
202 | /* A call to ptrace(REQ, ID, ...) just returned RET. Check for |
203 | exceptional conditions and either return nonlocally or else return | |
204 | 1 for success and 0 for failure. */ | |
c11d79f2 KB |
205 | |
206 | static int | |
207 | ptrace_check (int req, int id, int ret) | |
208 | { | |
209 | if (ret == 0 && !errno) | |
210 | return 1; | |
211 | ||
0fe7bf7b MS |
212 | /* According to ptrace(2), ptrace may fail with EPERM if "the |
213 | Identifier parameter corresponds to a kernel thread which is | |
214 | stopped in kernel mode and whose computational state cannot be | |
215 | read or written." This happens quite often with register reads. */ | |
c11d79f2 KB |
216 | |
217 | switch (req) | |
218 | { | |
219 | case PTT_READ_GPRS: | |
220 | case PTT_READ_FPRS: | |
221 | case PTT_READ_SPRS: | |
222 | if (ret == -1 && errno == EPERM) | |
42cc437f KB |
223 | { |
224 | if (debug_aix_thread) | |
0fe7bf7b | 225 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 226 | "ptrace (%d, %d) = %d (errno = %d)\n", |
42cc437f KB |
227 | req, id, ret, errno); |
228 | return ret == -1 ? 0 : 1; | |
229 | } | |
c11d79f2 KB |
230 | break; |
231 | } | |
edefbb7c | 232 | error (_("aix-thread: ptrace (%d, %d) returned %d (errno = %d %s)"), |
be006b8b | 233 | req, id, ret, errno, safe_strerror (errno)); |
0fe7bf7b | 234 | return 0; /* Not reached. */ |
c11d79f2 KB |
235 | } |
236 | ||
0fe7bf7b | 237 | /* Call ptracex (REQ, ID, ADDR, DATA, BUF). Return success. */ |
c11d79f2 KB |
238 | |
239 | static int | |
240 | ptrace64aix (int req, int id, long long addr, int data, int *buf) | |
241 | { | |
242 | errno = 0; | |
243 | return ptrace_check (req, id, ptracex (req, id, addr, data, buf)); | |
244 | } | |
245 | ||
0fe7bf7b | 246 | /* Call ptrace (REQ, ID, ADDR, DATA, BUF). Return success. */ |
c11d79f2 KB |
247 | |
248 | static int | |
249 | ptrace32 (int req, int id, int *addr, int data, int *buf) | |
250 | { | |
251 | errno = 0; | |
0fe7bf7b | 252 | return ptrace_check (req, id, |
206d3d3c | 253 | ptrace (req, id, (int *) addr, data, buf)); |
c11d79f2 KB |
254 | } |
255 | ||
0fe7bf7b MS |
256 | /* If *PIDP is a composite process/thread id, convert it to a |
257 | process id. */ | |
c11d79f2 KB |
258 | |
259 | static void | |
260 | pid_to_prc (ptid_t *ptidp) | |
261 | { | |
262 | ptid_t ptid; | |
263 | ||
264 | ptid = *ptidp; | |
265 | if (PD_TID (ptid)) | |
266 | *ptidp = pid_to_ptid (PIDGET (ptid)); | |
267 | } | |
268 | ||
0fe7bf7b MS |
269 | /* pthdb callback: for <i> from 0 to COUNT, set SYMBOLS[<i>].addr to |
270 | the address of SYMBOLS[<i>].name. */ | |
c11d79f2 KB |
271 | |
272 | static int | |
273 | pdc_symbol_addrs (pthdb_user_t user, pthdb_symbol_t *symbols, int count) | |
274 | { | |
275 | struct minimal_symbol *ms; | |
276 | int i; | |
277 | char *name; | |
278 | ||
8e2c28d4 KB |
279 | if (debug_aix_thread) |
280 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 281 | "pdc_symbol_addrs (user = %ld, symbols = 0x%lx, count = %d)\n", |
8e2c28d4 | 282 | user, (long) symbols, count); |
c11d79f2 KB |
283 | |
284 | for (i = 0; i < count; i++) | |
285 | { | |
286 | name = symbols[i].name; | |
8e2c28d4 | 287 | if (debug_aix_thread) |
0fe7bf7b | 288 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 289 | " symbols[%d].name = \"%s\"\n", i, name); |
c11d79f2 KB |
290 | |
291 | if (!*name) | |
292 | symbols[i].addr = 0; | |
293 | else | |
294 | { | |
295 | if (!(ms = lookup_minimal_symbol (name, NULL, NULL))) | |
296 | { | |
8e2c28d4 | 297 | if (debug_aix_thread) |
27bae383 | 298 | fprintf_unfiltered (gdb_stdlog, " returning PDC_FAILURE\n"); |
c11d79f2 KB |
299 | return PDC_FAILURE; |
300 | } | |
301 | symbols[i].addr = SYMBOL_VALUE_ADDRESS (ms); | |
302 | } | |
8e2c28d4 | 303 | if (debug_aix_thread) |
27bae383 | 304 | fprintf_unfiltered (gdb_stdlog, " symbols[%d].addr = %s\n", |
bb599908 | 305 | i, hex_string (symbols[i].addr)); |
c11d79f2 | 306 | } |
8e2c28d4 | 307 | if (debug_aix_thread) |
27bae383 | 308 | fprintf_unfiltered (gdb_stdlog, " returning PDC_SUCCESS\n"); |
c11d79f2 KB |
309 | return PDC_SUCCESS; |
310 | } | |
311 | ||
0fe7bf7b MS |
312 | /* Read registers call back function should be able to read the |
313 | context information of a debuggee kernel thread from an active | |
314 | process or from a core file. The information should be formatted | |
315 | in context64 form for both 32-bit and 64-bit process. | |
316 | If successful return 0, else non-zero is returned. */ | |
317 | ||
c11d79f2 KB |
318 | static int |
319 | pdc_read_regs (pthdb_user_t user, | |
320 | pthdb_tid_t tid, | |
321 | unsigned long long flags, | |
322 | pthdb_context_t *context) | |
323 | { | |
0fe7bf7b MS |
324 | /* This function doesn't appear to be used, so we could probably |
325 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
326 | complain and several thread debug functions will fail. In case | |
327 | this is needed, I have implemented what I think it should do, | |
328 | however this code is untested. */ | |
329 | ||
063715bf JB |
330 | uint64_t gprs64[ppc_num_gprs]; |
331 | uint32_t gprs32[ppc_num_gprs]; | |
332 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
333 | struct ptxsprs sprs64; |
334 | struct ptsprs sprs32; | |
335 | ||
8e2c28d4 | 336 | if (debug_aix_thread) |
27bae383 | 337 | fprintf_unfiltered (gdb_stdlog, "pdc_read_regs tid=%d flags=%s\n", |
bb599908 | 338 | (int) tid, hex_string (flags)); |
c11d79f2 | 339 | |
0fe7bf7b | 340 | /* General-purpose registers. */ |
c11d79f2 KB |
341 | if (flags & PTHDB_FLAG_GPRS) |
342 | { | |
343 | if (arch64) | |
344 | { | |
0fe7bf7b MS |
345 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
346 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 KB |
347 | memset (gprs64, 0, sizeof (gprs64)); |
348 | memcpy (context->gpr, gprs64, sizeof(gprs64)); | |
349 | } | |
350 | else | |
351 | { | |
352 | if (!ptrace32 (PTT_READ_GPRS, tid, gprs32, 0, NULL)) | |
353 | memset (gprs32, 0, sizeof (gprs32)); | |
354 | memcpy (context->gpr, gprs32, sizeof(gprs32)); | |
355 | } | |
356 | } | |
357 | ||
0fe7bf7b | 358 | /* Floating-point registers. */ |
c11d79f2 KB |
359 | if (flags & PTHDB_FLAG_FPRS) |
360 | { | |
ed1bd5f5 | 361 | if (!ptrace32 (PTT_READ_FPRS, tid, (void *) fprs, 0, NULL)) |
c11d79f2 | 362 | memset (fprs, 0, sizeof (fprs)); |
46bba1ef | 363 | memcpy (context->fpr, fprs, sizeof(fprs)); |
c11d79f2 KB |
364 | } |
365 | ||
0fe7bf7b | 366 | /* Special-purpose registers. */ |
c11d79f2 KB |
367 | if (flags & PTHDB_FLAG_SPRS) |
368 | { | |
369 | if (arch64) | |
370 | { | |
0fe7bf7b MS |
371 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
372 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 KB |
373 | memset (&sprs64, 0, sizeof (sprs64)); |
374 | memcpy (&context->msr, &sprs64, sizeof(sprs64)); | |
375 | } | |
376 | else | |
377 | { | |
378 | if (!ptrace32 (PTT_READ_SPRS, tid, (int *) &sprs32, 0, NULL)) | |
379 | memset (&sprs32, 0, sizeof (sprs32)); | |
380 | memcpy (&context->msr, &sprs32, sizeof(sprs32)); | |
381 | } | |
382 | } | |
383 | return 0; | |
384 | } | |
385 | ||
0fe7bf7b MS |
386 | /* Write register function should be able to write requested context |
387 | information to specified debuggee's kernel thread id. | |
388 | If successful return 0, else non-zero is returned. */ | |
389 | ||
c11d79f2 KB |
390 | static int |
391 | pdc_write_regs (pthdb_user_t user, | |
392 | pthdb_tid_t tid, | |
393 | unsigned long long flags, | |
394 | pthdb_context_t *context) | |
395 | { | |
0fe7bf7b MS |
396 | /* This function doesn't appear to be used, so we could probably |
397 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
398 | complain and several thread debug functions will fail. In case | |
399 | this is needed, I have implemented what I think it should do, | |
400 | however this code is untested. */ | |
c11d79f2 | 401 | |
8e2c28d4 | 402 | if (debug_aix_thread) |
27bae383 | 403 | fprintf_unfiltered (gdb_stdlog, "pdc_write_regs tid=%d flags=%s\n", |
bb599908 | 404 | (int) tid, hex_string (flags)); |
c11d79f2 | 405 | |
0fe7bf7b | 406 | /* General-purpose registers. */ |
c11d79f2 KB |
407 | if (flags & PTHDB_FLAG_GPRS) |
408 | { | |
409 | if (arch64) | |
0fe7bf7b | 410 | ptrace64aix (PTT_WRITE_GPRS, tid, |
206d3d3c | 411 | (unsigned long) context->gpr, 0, NULL); |
c11d79f2 | 412 | else |
206d3d3c | 413 | ptrace32 (PTT_WRITE_GPRS, tid, (int *) context->gpr, 0, NULL); |
c11d79f2 KB |
414 | } |
415 | ||
0fe7bf7b | 416 | /* Floating-point registers. */ |
c11d79f2 KB |
417 | if (flags & PTHDB_FLAG_FPRS) |
418 | { | |
206d3d3c | 419 | ptrace32 (PTT_WRITE_FPRS, tid, (int *) context->fpr, 0, NULL); |
c11d79f2 KB |
420 | } |
421 | ||
0fe7bf7b | 422 | /* Special-purpose registers. */ |
c11d79f2 KB |
423 | if (flags & PTHDB_FLAG_SPRS) |
424 | { | |
425 | if (arch64) | |
426 | { | |
0fe7bf7b MS |
427 | ptrace64aix (PTT_WRITE_SPRS, tid, |
428 | (unsigned long) &context->msr, 0, NULL); | |
c11d79f2 KB |
429 | } |
430 | else | |
431 | { | |
ed1bd5f5 | 432 | ptrace32 (PTT_WRITE_SPRS, tid, (void *) &context->msr, 0, NULL); |
c11d79f2 KB |
433 | } |
434 | } | |
435 | return 0; | |
436 | } | |
437 | ||
0fe7bf7b | 438 | /* pthdb callback: read LEN bytes from process ADDR into BUF. */ |
c11d79f2 KB |
439 | |
440 | static int | |
0fe7bf7b MS |
441 | pdc_read_data (pthdb_user_t user, void *buf, |
442 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
443 | { |
444 | int status, ret; | |
445 | ||
8e2c28d4 KB |
446 | if (debug_aix_thread) |
447 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 448 | "pdc_read_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 449 | user, (long) buf, hex_string (addr), len); |
c11d79f2 KB |
450 | |
451 | status = target_read_memory (addr, buf, len); | |
452 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; | |
453 | ||
8e2c28d4 | 454 | if (debug_aix_thread) |
27bae383 | 455 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", |
0fe7bf7b | 456 | status, pd_status2str (ret)); |
c11d79f2 KB |
457 | return ret; |
458 | } | |
459 | ||
0fe7bf7b | 460 | /* pthdb callback: write LEN bytes from BUF to process ADDR. */ |
c11d79f2 KB |
461 | |
462 | static int | |
0fe7bf7b MS |
463 | pdc_write_data (pthdb_user_t user, void *buf, |
464 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
465 | { |
466 | int status, ret; | |
467 | ||
8e2c28d4 KB |
468 | if (debug_aix_thread) |
469 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 470 | "pdc_write_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 471 | user, (long) buf, hex_string (addr), len); |
c11d79f2 KB |
472 | |
473 | status = target_write_memory (addr, buf, len); | |
474 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; | |
475 | ||
8e2c28d4 | 476 | if (debug_aix_thread) |
27bae383 | 477 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", status, |
8e2c28d4 | 478 | pd_status2str (ret)); |
c11d79f2 KB |
479 | return ret; |
480 | } | |
481 | ||
0fe7bf7b MS |
482 | /* pthdb callback: allocate a LEN-byte buffer and store a pointer to it |
483 | in BUFP. */ | |
c11d79f2 KB |
484 | |
485 | static int | |
486 | pdc_alloc (pthdb_user_t user, size_t len, void **bufp) | |
487 | { | |
8e2c28d4 KB |
488 | if (debug_aix_thread) |
489 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 490 | "pdc_alloc (user = %ld, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 491 | user, len, (long) bufp); |
c11d79f2 | 492 | *bufp = xmalloc (len); |
8e2c28d4 | 493 | if (debug_aix_thread) |
0fe7bf7b | 494 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 495 | " malloc returned 0x%lx\n", (long) *bufp); |
0fe7bf7b MS |
496 | |
497 | /* Note: xmalloc() can't return 0; therefore PDC_FAILURE will never | |
498 | be returned. */ | |
499 | ||
c11d79f2 KB |
500 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
501 | } | |
502 | ||
0fe7bf7b MS |
503 | /* pthdb callback: reallocate BUF, which was allocated by the alloc or |
504 | realloc callback, so that it contains LEN bytes, and store a | |
505 | pointer to the result in BUFP. */ | |
c11d79f2 KB |
506 | |
507 | static int | |
508 | pdc_realloc (pthdb_user_t user, void *buf, size_t len, void **bufp) | |
509 | { | |
8e2c28d4 KB |
510 | if (debug_aix_thread) |
511 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 512 | "pdc_realloc (user = %ld, buf = 0x%lx, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 513 | user, (long) buf, len, (long) bufp); |
be006b8b | 514 | *bufp = xrealloc (buf, len); |
8e2c28d4 | 515 | if (debug_aix_thread) |
0fe7bf7b | 516 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 517 | " realloc returned 0x%lx\n", (long) *bufp); |
c11d79f2 KB |
518 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
519 | } | |
520 | ||
0fe7bf7b MS |
521 | /* pthdb callback: free BUF, which was allocated by the alloc or |
522 | realloc callback. */ | |
c11d79f2 KB |
523 | |
524 | static int | |
525 | pdc_dealloc (pthdb_user_t user, void *buf) | |
526 | { | |
8e2c28d4 | 527 | if (debug_aix_thread) |
0fe7bf7b | 528 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 529 | "pdc_free (user = %ld, buf = 0x%lx)\n", user, |
8e2c28d4 | 530 | (long) buf); |
c11d79f2 KB |
531 | xfree (buf); |
532 | return PDC_SUCCESS; | |
533 | } | |
534 | ||
0fe7bf7b | 535 | /* Return a printable representation of pthread STATE. */ |
c11d79f2 KB |
536 | |
537 | static char * | |
538 | state2str (pthdb_state_t state) | |
539 | { | |
540 | switch (state) | |
541 | { | |
edefbb7c AC |
542 | case PST_IDLE: |
543 | /* i18n: Like "Thread-Id %d, [state] idle" */ | |
544 | return _("idle"); /* being created */ | |
545 | case PST_RUN: | |
546 | /* i18n: Like "Thread-Id %d, [state] running" */ | |
547 | return _("running"); /* running */ | |
548 | case PST_SLEEP: | |
549 | /* i18n: Like "Thread-Id %d, [state] sleeping" */ | |
550 | return _("sleeping"); /* awaiting an event */ | |
551 | case PST_READY: | |
552 | /* i18n: Like "Thread-Id %d, [state] ready" */ | |
553 | return _("ready"); /* runnable */ | |
554 | case PST_TERM: | |
555 | /* i18n: Like "Thread-Id %d, [state] finished" */ | |
556 | return _("finished"); /* awaiting a join/detach */ | |
557 | default: | |
558 | /* i18n: Like "Thread-Id %d, [state] unknown" */ | |
559 | return _("unknown"); | |
c11d79f2 KB |
560 | } |
561 | } | |
562 | ||
0fe7bf7b | 563 | /* qsort() comparison function for sorting pd_thread structs by pthid. */ |
c11d79f2 KB |
564 | |
565 | static int | |
566 | pcmp (const void *p1v, const void *p2v) | |
567 | { | |
568 | struct pd_thread *p1 = (struct pd_thread *) p1v; | |
569 | struct pd_thread *p2 = (struct pd_thread *) p2v; | |
570 | return p1->pthid < p2->pthid ? -1 : p1->pthid > p2->pthid; | |
571 | } | |
572 | ||
0fe7bf7b | 573 | /* iterate_over_threads() callback for counting GDB threads. */ |
c11d79f2 KB |
574 | |
575 | static int | |
576 | giter_count (struct thread_info *thread, void *countp) | |
577 | { | |
578 | (*(int *) countp)++; | |
579 | return 0; | |
580 | } | |
581 | ||
0fe7bf7b | 582 | /* iterate_over_threads() callback for accumulating GDB thread pids. */ |
c11d79f2 KB |
583 | |
584 | static int | |
585 | giter_accum (struct thread_info *thread, void *bufp) | |
586 | { | |
587 | **(struct thread_info ***) bufp = thread; | |
588 | (*(struct thread_info ***) bufp)++; | |
589 | return 0; | |
590 | } | |
591 | ||
592 | /* ptid comparison function */ | |
0fe7bf7b | 593 | |
c11d79f2 KB |
594 | static int |
595 | ptid_cmp (ptid_t ptid1, ptid_t ptid2) | |
596 | { | |
597 | int pid1, pid2; | |
598 | ||
599 | if (ptid_get_pid (ptid1) < ptid_get_pid (ptid2)) | |
600 | return -1; | |
601 | else if (ptid_get_pid (ptid1) > ptid_get_pid (ptid2)) | |
602 | return 1; | |
603 | else if (ptid_get_tid (ptid1) < ptid_get_tid (ptid2)) | |
604 | return -1; | |
605 | else if (ptid_get_tid (ptid1) > ptid_get_tid (ptid2)) | |
606 | return 1; | |
607 | else if (ptid_get_lwp (ptid1) < ptid_get_lwp (ptid2)) | |
608 | return -1; | |
609 | else if (ptid_get_lwp (ptid1) > ptid_get_lwp (ptid2)) | |
610 | return 1; | |
611 | else | |
612 | return 0; | |
613 | } | |
614 | ||
0fe7bf7b | 615 | /* qsort() comparison function for sorting thread_info structs by pid. */ |
c11d79f2 KB |
616 | |
617 | static int | |
618 | gcmp (const void *t1v, const void *t2v) | |
619 | { | |
620 | struct thread_info *t1 = *(struct thread_info **) t1v; | |
621 | struct thread_info *t2 = *(struct thread_info **) t2v; | |
622 | return ptid_cmp (t1->ptid, t2->ptid); | |
623 | } | |
624 | ||
9ad7bec7 JB |
625 | /* Search through the list of all kernel threads for the thread |
626 | that has stopped on a SIGTRAP signal, and return its TID. | |
627 | Return 0 if none found. */ | |
628 | ||
629 | static pthdb_tid_t | |
630 | get_signaled_thread (void) | |
631 | { | |
632 | struct thrdsinfo64 thrinf; | |
633 | pthdb_tid_t ktid = 0; | |
634 | int result = 0; | |
635 | ||
636 | /* getthrds(3) isn't prototyped in any AIX 4.3.3 #include file. */ | |
637 | extern int getthrds (pid_t, struct thrdsinfo64 *, | |
638 | int, pthdb_tid_t *, int); | |
639 | ||
640 | while (1) | |
641 | { | |
642 | if (getthrds (PIDGET (inferior_ptid), &thrinf, | |
643 | sizeof (thrinf), &ktid, 1) != 1) | |
644 | break; | |
645 | ||
646 | if (thrinf.ti_cursig == SIGTRAP) | |
647 | return thrinf.ti_tid; | |
648 | } | |
649 | ||
650 | /* Didn't find any thread stopped on a SIGTRAP signal. */ | |
651 | return 0; | |
652 | } | |
653 | ||
c11d79f2 KB |
654 | /* Synchronize GDB's thread list with libpthdebug's. |
655 | ||
656 | There are some benefits of doing this every time the inferior stops: | |
657 | ||
0fe7bf7b MS |
658 | - allows users to run thread-specific commands without needing to |
659 | run "info threads" first | |
c11d79f2 KB |
660 | |
661 | - helps pthdb_tid_pthread() work properly (see "libpthdebug | |
662 | peculiarities" at the top of this module) | |
663 | ||
0fe7bf7b MS |
664 | - simplifies the demands placed on libpthdebug, which seems to |
665 | have difficulty with certain call patterns */ | |
c11d79f2 KB |
666 | |
667 | static void | |
668 | sync_threadlists (void) | |
669 | { | |
670 | int cmd, status, infpid; | |
671 | int pcount, psize, pi, gcount, gi; | |
672 | struct pd_thread *pbuf; | |
673 | struct thread_info **gbuf, **g, *thread; | |
674 | pthdb_pthread_t pdtid; | |
675 | pthread_t pthid; | |
676 | pthdb_tid_t tid; | |
c11d79f2 | 677 | |
0fe7bf7b | 678 | /* Accumulate an array of libpthdebug threads sorted by pthread id. */ |
c11d79f2 KB |
679 | |
680 | pcount = 0; | |
681 | psize = 1; | |
682 | pbuf = (struct pd_thread *) xmalloc (psize * sizeof *pbuf); | |
683 | ||
684 | for (cmd = PTHDB_LIST_FIRST;; cmd = PTHDB_LIST_NEXT) | |
685 | { | |
686 | status = pthdb_pthread (pd_session, &pdtid, cmd); | |
687 | if (status != PTHDB_SUCCESS || pdtid == PTHDB_INVALID_PTHREAD) | |
688 | break; | |
689 | ||
690 | status = pthdb_pthread_ptid (pd_session, pdtid, &pthid); | |
691 | if (status != PTHDB_SUCCESS || pthid == PTHDB_INVALID_PTID) | |
692 | continue; | |
693 | ||
694 | if (pcount == psize) | |
695 | { | |
696 | psize *= 2; | |
0fe7bf7b MS |
697 | pbuf = (struct pd_thread *) xrealloc (pbuf, |
698 | psize * sizeof *pbuf); | |
c11d79f2 KB |
699 | } |
700 | pbuf[pcount].pdtid = pdtid; | |
701 | pbuf[pcount].pthid = pthid; | |
702 | pcount++; | |
703 | } | |
704 | ||
705 | for (pi = 0; pi < pcount; pi++) | |
706 | { | |
707 | status = pthdb_pthread_tid (pd_session, pbuf[pi].pdtid, &tid); | |
708 | if (status != PTHDB_SUCCESS) | |
709 | tid = PTHDB_INVALID_TID; | |
710 | pbuf[pi].tid = tid; | |
711 | } | |
712 | ||
713 | qsort (pbuf, pcount, sizeof *pbuf, pcmp); | |
714 | ||
0fe7bf7b | 715 | /* Accumulate an array of GDB threads sorted by pid. */ |
c11d79f2 KB |
716 | |
717 | gcount = 0; | |
718 | iterate_over_threads (giter_count, &gcount); | |
719 | g = gbuf = (struct thread_info **) xmalloc (gcount * sizeof *gbuf); | |
720 | iterate_over_threads (giter_accum, &g); | |
721 | qsort (gbuf, gcount, sizeof *gbuf, gcmp); | |
722 | ||
0fe7bf7b | 723 | /* Apply differences between the two arrays to GDB's thread list. */ |
c11d79f2 KB |
724 | |
725 | infpid = PIDGET (inferior_ptid); | |
726 | for (pi = gi = 0; pi < pcount || gi < gcount;) | |
727 | { | |
c11d79f2 | 728 | if (pi == pcount) |
c11d79f2 | 729 | { |
42cc437f | 730 | delete_thread (gbuf[gi]->ptid); |
c11d79f2 KB |
731 | gi++; |
732 | } | |
42cc437f | 733 | else if (gi == gcount) |
c11d79f2 | 734 | { |
42cc437f | 735 | thread = add_thread (BUILD_THREAD (pbuf[pi].pthid, infpid)); |
c11d79f2 | 736 | thread->private = xmalloc (sizeof (struct private_thread_info)); |
42cc437f KB |
737 | thread->private->pdtid = pbuf[pi].pdtid; |
738 | thread->private->tid = pbuf[pi].tid; | |
c11d79f2 KB |
739 | pi++; |
740 | } | |
42cc437f KB |
741 | else |
742 | { | |
743 | ptid_t pptid, gptid; | |
744 | int cmp_result; | |
745 | ||
746 | pptid = BUILD_THREAD (pbuf[pi].pthid, infpid); | |
747 | gptid = gbuf[gi]->ptid; | |
748 | pdtid = pbuf[pi].pdtid; | |
749 | tid = pbuf[pi].tid; | |
c11d79f2 | 750 | |
42cc437f KB |
751 | cmp_result = ptid_cmp (pptid, gptid); |
752 | ||
753 | if (cmp_result == 0) | |
754 | { | |
755 | gbuf[gi]->private->pdtid = pdtid; | |
756 | gbuf[gi]->private->tid = tid; | |
757 | pi++; | |
758 | gi++; | |
759 | } | |
760 | else if (cmp_result > 0) | |
761 | { | |
762 | delete_thread (gptid); | |
763 | gi++; | |
764 | } | |
765 | else | |
766 | { | |
767 | thread = add_thread (pptid); | |
768 | thread->private = xmalloc (sizeof (struct private_thread_info)); | |
769 | thread->private->pdtid = pdtid; | |
770 | thread->private->tid = tid; | |
771 | pi++; | |
772 | } | |
773 | } | |
c11d79f2 KB |
774 | } |
775 | ||
776 | xfree (pbuf); | |
777 | xfree (gbuf); | |
778 | } | |
779 | ||
9ad7bec7 JB |
780 | /* Iterate_over_threads() callback for locating a thread, using |
781 | the TID of its associated kernel thread. */ | |
c11d79f2 KB |
782 | |
783 | static int | |
9ad7bec7 | 784 | iter_tid (struct thread_info *thread, void *tidp) |
c11d79f2 | 785 | { |
9ad7bec7 | 786 | const pthdb_tid_t tid = *(pthdb_tid_t *)tidp; |
c11d79f2 | 787 | |
9ad7bec7 | 788 | return (thread->private->tid == tid); |
c11d79f2 KB |
789 | } |
790 | ||
0fe7bf7b MS |
791 | /* Synchronize libpthdebug's state with the inferior and with GDB, |
792 | generate a composite process/thread <pid> for the current thread, | |
793 | set inferior_ptid to <pid> if SET_INFPID, and return <pid>. */ | |
c11d79f2 KB |
794 | |
795 | static ptid_t | |
796 | pd_update (int set_infpid) | |
797 | { | |
798 | int status; | |
799 | ptid_t ptid; | |
9ad7bec7 JB |
800 | pthdb_tid_t tid; |
801 | struct thread_info *thread = NULL; | |
c11d79f2 KB |
802 | |
803 | if (!pd_active) | |
804 | return inferior_ptid; | |
805 | ||
806 | status = pthdb_session_update (pd_session); | |
807 | if (status != PTHDB_SUCCESS) | |
808 | return inferior_ptid; | |
809 | ||
810 | sync_threadlists (); | |
811 | ||
0fe7bf7b | 812 | /* Define "current thread" as one that just received a trap signal. */ |
c11d79f2 | 813 | |
9ad7bec7 JB |
814 | tid = get_signaled_thread (); |
815 | if (tid != 0) | |
816 | thread = iterate_over_threads (iter_tid, &tid); | |
c11d79f2 KB |
817 | if (!thread) |
818 | ptid = inferior_ptid; | |
819 | else | |
820 | { | |
821 | ptid = thread->ptid; | |
822 | if (set_infpid) | |
823 | inferior_ptid = ptid; | |
824 | } | |
825 | return ptid; | |
826 | } | |
827 | ||
0fe7bf7b MS |
828 | /* Try to start debugging threads in the current process. |
829 | If successful and SET_INFPID, set inferior_ptid to reflect the | |
830 | current thread. */ | |
c11d79f2 KB |
831 | |
832 | static ptid_t | |
833 | pd_activate (int set_infpid) | |
834 | { | |
835 | int status; | |
836 | ||
837 | status = pthdb_session_init (PD_USER, arch64 ? PEM_64BIT : PEM_32BIT, | |
0fe7bf7b MS |
838 | PTHDB_FLAG_REGS, &pd_callbacks, |
839 | &pd_session); | |
c11d79f2 KB |
840 | if (status != PTHDB_SUCCESS) |
841 | { | |
842 | return inferior_ptid; | |
843 | } | |
844 | pd_active = 1; | |
845 | return pd_update (set_infpid); | |
846 | } | |
847 | ||
0fe7bf7b | 848 | /* Undo the effects of pd_activate(). */ |
c11d79f2 KB |
849 | |
850 | static void | |
851 | pd_deactivate (void) | |
852 | { | |
853 | if (!pd_active) | |
854 | return; | |
855 | pthdb_session_destroy (pd_session); | |
856 | ||
857 | pid_to_prc (&inferior_ptid); | |
858 | pd_active = 0; | |
859 | } | |
860 | ||
0fe7bf7b MS |
861 | /* An object file has just been loaded. Check whether the current |
862 | application is pthreaded, and if so, prepare for thread debugging. */ | |
c11d79f2 KB |
863 | |
864 | static void | |
865 | pd_enable (void) | |
866 | { | |
867 | int status; | |
868 | char *stub_name; | |
869 | struct minimal_symbol *ms; | |
870 | ||
0fe7bf7b | 871 | /* Don't initialize twice. */ |
c11d79f2 KB |
872 | if (pd_able) |
873 | return; | |
874 | ||
0fe7bf7b | 875 | /* Check application word size. */ |
3acba339 | 876 | arch64 = register_size (current_gdbarch, 0) == 8; |
c11d79f2 | 877 | |
0fe7bf7b | 878 | /* Check whether the application is pthreaded. */ |
c11d79f2 | 879 | stub_name = NULL; |
0fe7bf7b MS |
880 | status = pthdb_session_pthreaded (PD_USER, PTHDB_FLAG_REGS, |
881 | &pd_callbacks, &stub_name); | |
882 | if ((status != PTHDB_SUCCESS && | |
883 | status != PTHDB_NOT_PTHREADED) || !stub_name) | |
c11d79f2 KB |
884 | return; |
885 | ||
0fe7bf7b | 886 | /* Set a breakpoint on the returned stub function. */ |
c11d79f2 KB |
887 | if (!(ms = lookup_minimal_symbol (stub_name, NULL, NULL))) |
888 | return; | |
889 | pd_brk_addr = SYMBOL_VALUE_ADDRESS (ms); | |
890 | if (!create_thread_event_breakpoint (pd_brk_addr)) | |
891 | return; | |
892 | ||
0fe7bf7b | 893 | /* Prepare for thread debugging. */ |
206d3d3c | 894 | push_target (&aix_thread_ops); |
c11d79f2 KB |
895 | pd_able = 1; |
896 | ||
0fe7bf7b MS |
897 | /* If we're debugging a core file or an attached inferior, the |
898 | pthread library may already have been initialized, so try to | |
899 | activate thread debugging. */ | |
c11d79f2 KB |
900 | pd_activate (1); |
901 | } | |
902 | ||
0fe7bf7b | 903 | /* Undo the effects of pd_enable(). */ |
c11d79f2 KB |
904 | |
905 | static void | |
906 | pd_disable (void) | |
907 | { | |
908 | if (!pd_able) | |
909 | return; | |
910 | if (pd_active) | |
911 | pd_deactivate (); | |
912 | pd_able = 0; | |
206d3d3c | 913 | unpush_target (&aix_thread_ops); |
c11d79f2 KB |
914 | } |
915 | ||
06d3b283 | 916 | /* new_objfile observer callback. |
c11d79f2 | 917 | |
0fe7bf7b MS |
918 | If OBJFILE is non-null, check whether a threaded application is |
919 | being debugged, and if so, prepare for thread debugging. | |
c11d79f2 | 920 | |
0fe7bf7b | 921 | If OBJFILE is null, stop debugging threads. */ |
c11d79f2 KB |
922 | |
923 | static void | |
924 | new_objfile (struct objfile *objfile) | |
925 | { | |
926 | if (objfile) | |
927 | pd_enable (); | |
928 | else | |
929 | pd_disable (); | |
c11d79f2 KB |
930 | } |
931 | ||
0fe7bf7b | 932 | /* Attach to process specified by ARGS. */ |
c11d79f2 KB |
933 | |
934 | static void | |
136d6dae | 935 | aix_thread_attach (struct target_ops *ops, char *args, int from_tty) |
c11d79f2 | 936 | { |
d30acaa7 JB |
937 | struct target_ops *beneath = find_target_beneath (ops); |
938 | ||
939 | beneath->to_attach (beneath, args, from_tty); | |
c11d79f2 KB |
940 | pd_activate (1); |
941 | } | |
942 | ||
206d3d3c | 943 | /* Detach from the process attached to by aix_thread_attach(). */ |
c11d79f2 KB |
944 | |
945 | static void | |
136d6dae | 946 | aix_thread_detach (struct target_ops *ops, char *args, int from_tty) |
c11d79f2 | 947 | { |
d30acaa7 JB |
948 | struct target_ops *beneath = find_target_beneath (ops); |
949 | ||
6c0c456d | 950 | pd_disable (); |
d30acaa7 | 951 | beneath->to_detach (beneath, args, from_tty); |
c11d79f2 KB |
952 | } |
953 | ||
954 | /* Tell the inferior process to continue running thread PID if != -1 | |
0fe7bf7b | 955 | and all threads otherwise. */ |
c11d79f2 KB |
956 | |
957 | static void | |
c7660128 JB |
958 | aix_thread_resume (struct target_ops *ops, |
959 | ptid_t ptid, int step, enum target_signal sig) | |
c11d79f2 KB |
960 | { |
961 | struct thread_info *thread; | |
962 | pthdb_tid_t tid[2]; | |
963 | ||
964 | if (!PD_TID (ptid)) | |
14fa3751 KB |
965 | { |
966 | struct cleanup *cleanup = save_inferior_ptid (); | |
d30acaa7 JB |
967 | struct target_ops *beneath = find_target_beneath (ops); |
968 | ||
14fa3751 | 969 | inferior_ptid = pid_to_ptid (PIDGET (inferior_ptid)); |
d30acaa7 | 970 | beneath->to_resume (beneath, 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 | 1003 | struct cleanup *cleanup = save_inferior_ptid (); |
d30acaa7 | 1004 | struct target_ops *beneath = find_target_beneath (ops); |
14fa3751 | 1005 | |
c11d79f2 | 1006 | pid_to_prc (&ptid); |
14fa3751 KB |
1007 | |
1008 | inferior_ptid = pid_to_ptid (PIDGET (inferior_ptid)); | |
d30acaa7 | 1009 | ptid = beneath->to_wait (beneath, ptid, status); |
14fa3751 KB |
1010 | do_cleanups (cleanup); |
1011 | ||
c11d79f2 KB |
1012 | if (PIDGET (ptid) == -1) |
1013 | return pid_to_ptid (-1); | |
1014 | ||
0fe7bf7b | 1015 | /* Check whether libpthdebug might be ready to be initialized. */ |
515630c5 UW |
1016 | if (!pd_active && status->kind == TARGET_WAITKIND_STOPPED |
1017 | && status->value.sig == TARGET_SIGNAL_TRAP) | |
1018 | { | |
1019 | struct regcache *regcache = get_thread_regcache (ptid); | |
1020 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
1021 | ||
1022 | if (regcache_read_pc (regcache) | |
1023 | - gdbarch_decr_pc_after_break (gdbarch) == pd_brk_addr) | |
1024 | return pd_activate (0); | |
1025 | } | |
c11d79f2 KB |
1026 | |
1027 | return pd_update (0); | |
1028 | } | |
1029 | ||
0fe7bf7b | 1030 | /* Record that the 64-bit general-purpose registers contain VALS. */ |
c11d79f2 KB |
1031 | |
1032 | static void | |
647478e0 | 1033 | supply_gprs64 (struct regcache *regcache, uint64_t *vals) |
c11d79f2 | 1034 | { |
c7f30c7a | 1035 | struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache)); |
c11d79f2 KB |
1036 | int regno; |
1037 | ||
063715bf | 1038 | for (regno = 0; regno < ppc_num_gprs; regno++) |
647478e0 | 1039 | regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + regno, |
23a6d369 | 1040 | (char *) (vals + regno)); |
c11d79f2 KB |
1041 | } |
1042 | ||
0fe7bf7b | 1043 | /* Record that 32-bit register REGNO contains VAL. */ |
c11d79f2 KB |
1044 | |
1045 | static void | |
647478e0 | 1046 | supply_reg32 (struct regcache *regcache, int regno, uint32_t val) |
c11d79f2 | 1047 | { |
647478e0 | 1048 | regcache_raw_supply (regcache, regno, (char *) &val); |
c11d79f2 KB |
1049 | } |
1050 | ||
0fe7bf7b | 1051 | /* Record that the floating-point registers contain VALS. */ |
c11d79f2 KB |
1052 | |
1053 | static void | |
647478e0 | 1054 | supply_fprs (struct regcache *regcache, double *vals) |
c11d79f2 | 1055 | { |
c7f30c7a UW |
1056 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1057 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
c11d79f2 KB |
1058 | int regno; |
1059 | ||
383f0f5b JB |
1060 | /* This function should never be called on architectures without |
1061 | floating-point registers. */ | |
c7f30c7a | 1062 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1063 | |
063715bf | 1064 | for (regno = 0; regno < ppc_num_fprs; regno++) |
647478e0 | 1065 | regcache_raw_supply (regcache, regno + tdep->ppc_fp0_regnum, |
23a6d369 | 1066 | (char *) (vals + regno)); |
c11d79f2 KB |
1067 | } |
1068 | ||
f1a91342 KB |
1069 | /* Predicate to test whether given register number is a "special" register. */ |
1070 | static int | |
9970f04b | 1071 | special_register_p (struct gdbarch *gdbarch, int regno) |
f1a91342 | 1072 | { |
9970f04b | 1073 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1074 | |
9970f04b | 1075 | return regno == gdbarch_pc_regnum (gdbarch) |
f1a91342 KB |
1076 | || regno == tdep->ppc_ps_regnum |
1077 | || regno == tdep->ppc_cr_regnum | |
1078 | || regno == tdep->ppc_lr_regnum | |
1079 | || regno == tdep->ppc_ctr_regnum | |
1080 | || regno == tdep->ppc_xer_regnum | |
383f0f5b | 1081 | || (tdep->ppc_fpscr_regnum >= 0 && regno == tdep->ppc_fpscr_regnum) |
f1a91342 KB |
1082 | || (tdep->ppc_mq_regnum >= 0 && regno == tdep->ppc_mq_regnum); |
1083 | } | |
1084 | ||
1085 | ||
0fe7bf7b MS |
1086 | /* Record that the special registers contain the specified 64-bit and |
1087 | 32-bit values. */ | |
c11d79f2 KB |
1088 | |
1089 | static void | |
647478e0 UW |
1090 | supply_sprs64 (struct regcache *regcache, |
1091 | uint64_t iar, uint64_t msr, uint32_t cr, | |
0e061eef KB |
1092 | uint64_t lr, uint64_t ctr, uint32_t xer, |
1093 | uint32_t fpscr) | |
c11d79f2 | 1094 | { |
c7f30c7a UW |
1095 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1096 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 | 1097 | |
c7f30c7a | 1098 | regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch), |
3e8c568d | 1099 | (char *) &iar); |
647478e0 UW |
1100 | regcache_raw_supply (regcache, tdep->ppc_ps_regnum, (char *) &msr); |
1101 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, (char *) &cr); | |
1102 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, (char *) &lr); | |
1103 | regcache_raw_supply (regcache, tdep->ppc_ctr_regnum, (char *) &ctr); | |
1104 | regcache_raw_supply (regcache, tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1105 | if (tdep->ppc_fpscr_regnum >= 0) |
647478e0 | 1106 | regcache_raw_supply (regcache, tdep->ppc_fpscr_regnum, |
23a6d369 | 1107 | (char *) &fpscr); |
c11d79f2 KB |
1108 | } |
1109 | ||
0fe7bf7b MS |
1110 | /* Record that the special registers contain the specified 32-bit |
1111 | values. */ | |
c11d79f2 KB |
1112 | |
1113 | static void | |
647478e0 UW |
1114 | supply_sprs32 (struct regcache *regcache, |
1115 | uint32_t iar, uint32_t msr, uint32_t cr, | |
0e061eef KB |
1116 | uint32_t lr, uint32_t ctr, uint32_t xer, |
1117 | uint32_t fpscr) | |
c11d79f2 | 1118 | { |
c7f30c7a UW |
1119 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1120 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 | 1121 | |
c7f30c7a | 1122 | regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch), |
3e8c568d | 1123 | (char *) &iar); |
647478e0 UW |
1124 | regcache_raw_supply (regcache, tdep->ppc_ps_regnum, (char *) &msr); |
1125 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, (char *) &cr); | |
1126 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, (char *) &lr); | |
1127 | regcache_raw_supply (regcache, tdep->ppc_ctr_regnum, (char *) &ctr); | |
1128 | regcache_raw_supply (regcache, tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1129 | if (tdep->ppc_fpscr_regnum >= 0) |
647478e0 | 1130 | regcache_raw_supply (regcache, tdep->ppc_fpscr_regnum, |
23a6d369 | 1131 | (char *) &fpscr); |
c11d79f2 KB |
1132 | } |
1133 | ||
1134 | /* Fetch all registers from pthread PDTID, which doesn't have a kernel | |
1135 | thread. | |
1136 | ||
0fe7bf7b MS |
1137 | There's no way to query a single register from a non-kernel |
1138 | pthread, so there's no need for a single-register version of this | |
1139 | function. */ | |
c11d79f2 KB |
1140 | |
1141 | static void | |
647478e0 | 1142 | fetch_regs_user_thread (struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1143 | { |
c7f30c7a UW |
1144 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1145 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
c11d79f2 KB |
1146 | int status, i; |
1147 | pthdb_context_t ctx; | |
1148 | ||
8e2c28d4 | 1149 | if (debug_aix_thread) |
206d3d3c KB |
1150 | fprintf_unfiltered (gdb_stdlog, |
1151 | "fetch_regs_user_thread %lx\n", (long) pdtid); | |
c11d79f2 KB |
1152 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1153 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1154 | error (_("aix-thread: fetch_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1155 | pd_status2str (status)); |
c11d79f2 | 1156 | |
0fe7bf7b | 1157 | /* General-purpose registers. */ |
c11d79f2 KB |
1158 | |
1159 | if (arch64) | |
647478e0 | 1160 | supply_gprs64 (regcache, ctx.gpr); |
c11d79f2 | 1161 | else |
063715bf | 1162 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1163 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, ctx.gpr[i]); |
c11d79f2 | 1164 | |
0fe7bf7b | 1165 | /* Floating-point registers. */ |
c11d79f2 | 1166 | |
c7f30c7a | 1167 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1168 | supply_fprs (regcache, ctx.fpr); |
c11d79f2 | 1169 | |
0fe7bf7b | 1170 | /* Special registers. */ |
c11d79f2 KB |
1171 | |
1172 | if (arch64) | |
647478e0 UW |
1173 | supply_sprs64 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1174 | ctx.xer, ctx.fpscr); | |
c11d79f2 | 1175 | else |
647478e0 UW |
1176 | supply_sprs32 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1177 | ctx.xer, ctx.fpscr); | |
c11d79f2 KB |
1178 | } |
1179 | ||
0fe7bf7b MS |
1180 | /* Fetch register REGNO if != -1 or all registers otherwise from |
1181 | kernel thread TID. | |
c11d79f2 | 1182 | |
0fe7bf7b MS |
1183 | AIX provides a way to query all of a kernel thread's GPRs, FPRs, or |
1184 | SPRs, but there's no way to query individual registers within those | |
1185 | groups. Therefore, if REGNO != -1, this function fetches an entire | |
1186 | group. | |
c11d79f2 | 1187 | |
0fe7bf7b MS |
1188 | Unfortunately, kernel thread register queries often fail with |
1189 | EPERM, indicating that the thread is in kernel space. This breaks | |
1190 | backtraces of threads other than the current one. To make that | |
1191 | breakage obvious without throwing an error to top level (which is | |
1192 | bad e.g. during "info threads" output), zero registers that can't | |
1193 | be retrieved. */ | |
c11d79f2 KB |
1194 | |
1195 | static void | |
647478e0 UW |
1196 | fetch_regs_kernel_thread (struct regcache *regcache, int regno, |
1197 | pthdb_tid_t tid) | |
c11d79f2 | 1198 | { |
c7f30c7a UW |
1199 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1200 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
063715bf JB |
1201 | uint64_t gprs64[ppc_num_gprs]; |
1202 | uint32_t gprs32[ppc_num_gprs]; | |
1203 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
1204 | struct ptxsprs sprs64; |
1205 | struct ptsprs sprs32; | |
1206 | int i; | |
1207 | ||
8e2c28d4 KB |
1208 | if (debug_aix_thread) |
1209 | fprintf_unfiltered (gdb_stdlog, | |
206d3d3c KB |
1210 | "fetch_regs_kernel_thread tid=%lx regno=%d arch64=%d\n", |
1211 | (long) tid, regno, arch64); | |
c11d79f2 | 1212 | |
0fe7bf7b | 1213 | /* General-purpose registers. */ |
daf6dc85 JB |
1214 | if (regno == -1 |
1215 | || (tdep->ppc_gp0_regnum <= regno | |
1216 | && regno < tdep->ppc_gp0_regnum + ppc_num_gprs)) | |
c11d79f2 KB |
1217 | { |
1218 | if (arch64) | |
1219 | { | |
0fe7bf7b MS |
1220 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
1221 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 | 1222 | memset (gprs64, 0, sizeof (gprs64)); |
647478e0 | 1223 | supply_gprs64 (regcache, gprs64); |
c11d79f2 KB |
1224 | } |
1225 | else | |
1226 | { | |
1227 | if (!ptrace32 (PTT_READ_GPRS, tid, gprs32, 0, NULL)) | |
1228 | memset (gprs32, 0, sizeof (gprs32)); | |
063715bf | 1229 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1230 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, gprs32[i]); |
c11d79f2 KB |
1231 | } |
1232 | } | |
1233 | ||
0fe7bf7b | 1234 | /* Floating-point registers. */ |
c11d79f2 | 1235 | |
c7f30c7a | 1236 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1237 | && (regno == -1 |
1238 | || (regno >= tdep->ppc_fp0_regnum | |
1239 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 | 1240 | { |
ed1bd5f5 | 1241 | if (!ptrace32 (PTT_READ_FPRS, tid, (void *) fprs, 0, NULL)) |
c11d79f2 | 1242 | memset (fprs, 0, sizeof (fprs)); |
647478e0 | 1243 | supply_fprs (regcache, fprs); |
c11d79f2 KB |
1244 | } |
1245 | ||
0fe7bf7b | 1246 | /* Special-purpose registers. */ |
c11d79f2 | 1247 | |
9970f04b | 1248 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1249 | { |
1250 | if (arch64) | |
1251 | { | |
0fe7bf7b MS |
1252 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
1253 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 | 1254 | memset (&sprs64, 0, sizeof (sprs64)); |
647478e0 UW |
1255 | supply_sprs64 (regcache, sprs64.pt_iar, sprs64.pt_msr, |
1256 | sprs64.pt_cr, sprs64.pt_lr, sprs64.pt_ctr, | |
1257 | sprs64.pt_xer, sprs64.pt_fpscr); | |
c11d79f2 KB |
1258 | } |
1259 | else | |
1260 | { | |
c7f30c7a | 1261 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1262 | |
c11d79f2 KB |
1263 | if (!ptrace32 (PTT_READ_SPRS, tid, (int *) &sprs32, 0, NULL)) |
1264 | memset (&sprs32, 0, sizeof (sprs32)); | |
647478e0 | 1265 | supply_sprs32 (regcache, sprs32.pt_iar, sprs32.pt_msr, sprs32.pt_cr, |
0e061eef KB |
1266 | sprs32.pt_lr, sprs32.pt_ctr, sprs32.pt_xer, |
1267 | sprs32.pt_fpscr); | |
c11d79f2 | 1268 | |
f1a91342 | 1269 | if (tdep->ppc_mq_regnum >= 0) |
647478e0 | 1270 | regcache_raw_supply (regcache, tdep->ppc_mq_regnum, |
23a6d369 | 1271 | (char *) &sprs32.pt_mq); |
c11d79f2 KB |
1272 | } |
1273 | } | |
1274 | } | |
1275 | ||
1276 | /* Fetch register REGNO if != -1 or all registers otherwise in the | |
0fe7bf7b | 1277 | thread/process specified by inferior_ptid. */ |
c11d79f2 KB |
1278 | |
1279 | static void | |
c7660128 JB |
1280 | aix_thread_fetch_registers (struct target_ops *ops, |
1281 | struct regcache *regcache, int regno) | |
c11d79f2 KB |
1282 | { |
1283 | struct thread_info *thread; | |
1284 | pthdb_tid_t tid; | |
d30acaa7 | 1285 | struct target_ops *beneath = find_target_beneath (ops); |
c11d79f2 KB |
1286 | |
1287 | if (!PD_TID (inferior_ptid)) | |
d30acaa7 | 1288 | beneath->to_fetch_registers (beneath, regcache, regno); |
c11d79f2 KB |
1289 | else |
1290 | { | |
1291 | thread = find_thread_pid (inferior_ptid); | |
1292 | tid = thread->private->tid; | |
1293 | ||
1294 | if (tid == PTHDB_INVALID_TID) | |
56be3814 | 1295 | fetch_regs_user_thread (regcache, thread->private->pdtid); |
c11d79f2 | 1296 | else |
56be3814 | 1297 | fetch_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1298 | } |
1299 | } | |
1300 | ||
61c5da0b KB |
1301 | /* Store the gp registers into an array of uint32_t or uint64_t. */ |
1302 | ||
1303 | static void | |
647478e0 | 1304 | fill_gprs64 (const struct regcache *regcache, uint64_t *vals) |
61c5da0b | 1305 | { |
c7f30c7a | 1306 | struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache)); |
61c5da0b KB |
1307 | int regno; |
1308 | ||
daf6dc85 | 1309 | for (regno = 0; regno < ppc_num_gprs; regno++) |
647478e0 UW |
1310 | if (regcache_valid_p (regcache, tdep->ppc_gp0_regnum + regno)) |
1311 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + regno, | |
822c9732 | 1312 | vals + regno); |
61c5da0b KB |
1313 | } |
1314 | ||
1315 | static void | |
647478e0 | 1316 | fill_gprs32 (const struct regcache *regcache, uint32_t *vals) |
61c5da0b | 1317 | { |
c7f30c7a | 1318 | struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache)); |
61c5da0b KB |
1319 | int regno; |
1320 | ||
daf6dc85 | 1321 | for (regno = 0; regno < ppc_num_gprs; regno++) |
647478e0 UW |
1322 | if (regcache_valid_p (regcache, tdep->ppc_gp0_regnum + regno)) |
1323 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + regno, | |
822c9732 | 1324 | vals + regno); |
61c5da0b KB |
1325 | } |
1326 | ||
1327 | /* Store the floating point registers into a double array. */ | |
1328 | static void | |
647478e0 | 1329 | fill_fprs (const struct regcache *regcache, double *vals) |
61c5da0b | 1330 | { |
c7f30c7a UW |
1331 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1332 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
61c5da0b KB |
1333 | int regno; |
1334 | ||
383f0f5b JB |
1335 | /* This function should never be called on architectures without |
1336 | floating-point registers. */ | |
c7f30c7a | 1337 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1338 | |
366f009f JB |
1339 | for (regno = tdep->ppc_fp0_regnum; |
1340 | regno < tdep->ppc_fp0_regnum + ppc_num_fprs; | |
1341 | regno++) | |
647478e0 UW |
1342 | if (regcache_valid_p (regcache, regno)) |
1343 | regcache_raw_collect (regcache, regno, vals + regno); | |
61c5da0b KB |
1344 | } |
1345 | ||
c11d79f2 | 1346 | /* Store the special registers into the specified 64-bit and 32-bit |
0fe7bf7b | 1347 | locations. */ |
c11d79f2 KB |
1348 | |
1349 | static void | |
647478e0 UW |
1350 | fill_sprs64 (const struct regcache *regcache, |
1351 | uint64_t *iar, uint64_t *msr, uint32_t *cr, | |
0e061eef KB |
1352 | uint64_t *lr, uint64_t *ctr, uint32_t *xer, |
1353 | uint32_t *fpscr) | |
c11d79f2 | 1354 | { |
c7f30c7a UW |
1355 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1356 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 KB |
1357 | |
1358 | /* Verify that the size of the size of the IAR buffer is the | |
1359 | same as the raw size of the PC (in the register cache). If | |
1360 | they're not, then either GDB has been built incorrectly, or | |
1361 | there's some other kind of internal error. To be really safe, | |
1362 | we should check all of the sizes. */ | |
3e8c568d | 1363 | gdb_assert (sizeof (*iar) == register_size |
c7f30c7a | 1364 | (gdbarch, gdbarch_pc_regnum (gdbarch))); |
f1a91342 | 1365 | |
c7f30c7a UW |
1366 | if (regcache_valid_p (regcache, gdbarch_pc_regnum (gdbarch))) |
1367 | regcache_raw_collect (regcache, gdbarch_pc_regnum (gdbarch), iar); | |
647478e0 UW |
1368 | if (regcache_valid_p (regcache, tdep->ppc_ps_regnum)) |
1369 | regcache_raw_collect (regcache, tdep->ppc_ps_regnum, msr); | |
1370 | if (regcache_valid_p (regcache, tdep->ppc_cr_regnum)) | |
1371 | regcache_raw_collect (regcache, tdep->ppc_cr_regnum, cr); | |
1372 | if (regcache_valid_p (regcache, tdep->ppc_lr_regnum)) | |
1373 | regcache_raw_collect (regcache, tdep->ppc_lr_regnum, lr); | |
1374 | if (regcache_valid_p (regcache, tdep->ppc_ctr_regnum)) | |
1375 | regcache_raw_collect (regcache, tdep->ppc_ctr_regnum, ctr); | |
1376 | if (regcache_valid_p (regcache, tdep->ppc_xer_regnum)) | |
1377 | regcache_raw_collect (regcache, tdep->ppc_xer_regnum, xer); | |
383f0f5b | 1378 | if (tdep->ppc_fpscr_regnum >= 0 |
647478e0 UW |
1379 | && regcache_valid_p (regcache, tdep->ppc_fpscr_regnum)) |
1380 | regcache_raw_collect (regcache, tdep->ppc_fpscr_regnum, fpscr); | |
61c5da0b KB |
1381 | } |
1382 | ||
1383 | static void | |
647478e0 UW |
1384 | fill_sprs32 (const struct regcache *regcache, |
1385 | uint32_t *iar, uint32_t *msr, uint32_t *cr, | |
0d16ee5d UW |
1386 | uint32_t *lr, uint32_t *ctr, uint32_t *xer, |
1387 | uint32_t *fpscr) | |
61c5da0b | 1388 | { |
c7f30c7a UW |
1389 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1390 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 KB |
1391 | |
1392 | /* Verify that the size of the size of the IAR buffer is the | |
1393 | same as the raw size of the PC (in the register cache). If | |
1394 | they're not, then either GDB has been built incorrectly, or | |
1395 | there's some other kind of internal error. To be really safe, | |
0d16ee5d | 1396 | we should check all of the sizes. */ |
c7f30c7a UW |
1397 | gdb_assert (sizeof (*iar) == register_size (gdbarch, |
1398 | gdbarch_pc_regnum (gdbarch))); | |
f1a91342 | 1399 | |
c7f30c7a UW |
1400 | if (regcache_valid_p (regcache, gdbarch_pc_regnum (gdbarch))) |
1401 | regcache_raw_collect (regcache, gdbarch_pc_regnum (gdbarch), iar); | |
647478e0 UW |
1402 | if (regcache_valid_p (regcache, tdep->ppc_ps_regnum)) |
1403 | regcache_raw_collect (regcache, tdep->ppc_ps_regnum, msr); | |
1404 | if (regcache_valid_p (regcache, tdep->ppc_cr_regnum)) | |
1405 | regcache_raw_collect (regcache, tdep->ppc_cr_regnum, cr); | |
1406 | if (regcache_valid_p (regcache, tdep->ppc_lr_regnum)) | |
1407 | regcache_raw_collect (regcache, tdep->ppc_lr_regnum, lr); | |
1408 | if (regcache_valid_p (regcache, tdep->ppc_ctr_regnum)) | |
1409 | regcache_raw_collect (regcache, tdep->ppc_ctr_regnum, ctr); | |
1410 | if (regcache_valid_p (regcache, tdep->ppc_xer_regnum)) | |
1411 | regcache_raw_collect (regcache, tdep->ppc_xer_regnum, xer); | |
383f0f5b | 1412 | if (tdep->ppc_fpscr_regnum >= 0 |
647478e0 UW |
1413 | && regcache_valid_p (regcache, tdep->ppc_fpscr_regnum)) |
1414 | regcache_raw_collect (regcache, tdep->ppc_fpscr_regnum, fpscr); | |
c11d79f2 KB |
1415 | } |
1416 | ||
1417 | /* Store all registers into pthread PDTID, which doesn't have a kernel | |
1418 | thread. | |
1419 | ||
0fe7bf7b MS |
1420 | It's possible to store a single register into a non-kernel pthread, |
1421 | but I doubt it's worth the effort. */ | |
c11d79f2 KB |
1422 | |
1423 | static void | |
647478e0 | 1424 | store_regs_user_thread (const struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1425 | { |
c7f30c7a UW |
1426 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1427 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
c11d79f2 KB |
1428 | int status, i; |
1429 | pthdb_context_t ctx; | |
61c5da0b KB |
1430 | uint32_t int32; |
1431 | uint64_t int64; | |
1432 | double dbl; | |
c11d79f2 | 1433 | |
8e2c28d4 | 1434 | if (debug_aix_thread) |
0fe7bf7b | 1435 | fprintf_unfiltered (gdb_stdlog, |
206d3d3c | 1436 | "store_regs_user_thread %lx\n", (long) pdtid); |
c11d79f2 | 1437 | |
0fe7bf7b MS |
1438 | /* Retrieve the thread's current context for its non-register |
1439 | values. */ | |
c11d79f2 KB |
1440 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1441 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1442 | error (_("aix-thread: store_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1443 | pd_status2str (status)); |
c11d79f2 | 1444 | |
61c5da0b | 1445 | /* Collect general-purpose register values from the regcache. */ |
c11d79f2 | 1446 | |
063715bf | 1447 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1448 | if (regcache_valid_p (regcache, tdep->ppc_gp0_regnum + i)) |
cbe92db4 KB |
1449 | { |
1450 | if (arch64) | |
1451 | { | |
647478e0 | 1452 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + i, |
822c9732 | 1453 | (void *) &int64); |
cbe92db4 KB |
1454 | ctx.gpr[i] = int64; |
1455 | } | |
1456 | else | |
1457 | { | |
647478e0 | 1458 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + i, |
822c9732 | 1459 | (void *) &int32); |
cbe92db4 KB |
1460 | ctx.gpr[i] = int32; |
1461 | } | |
1462 | } | |
c11d79f2 | 1463 | |
61c5da0b | 1464 | /* Collect floating-point register values from the regcache. */ |
c7f30c7a | 1465 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1466 | fill_fprs (regcache, ctx.fpr); |
c11d79f2 | 1467 | |
61c5da0b KB |
1468 | /* Special registers (always kept in ctx as 64 bits). */ |
1469 | if (arch64) | |
1470 | { | |
647478e0 UW |
1471 | fill_sprs64 (regcache, &ctx.iar, &ctx.msr, &ctx.cr, &ctx.lr, &ctx.ctr, |
1472 | &ctx.xer, &ctx.fpscr); | |
61c5da0b KB |
1473 | } |
1474 | else | |
1475 | { | |
1476 | /* Problem: ctx.iar etc. are 64 bits, but raw_registers are 32. | |
0d16ee5d UW |
1477 | Solution: use 32-bit temp variables. */ |
1478 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1479 | tmp_fpscr; | |
61c5da0b | 1480 | |
647478e0 UW |
1481 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, &tmp_ctr, |
1482 | &tmp_xer, &tmp_fpscr); | |
c7f30c7a | 1483 | if (regcache_valid_p (regcache, gdbarch_pc_regnum (gdbarch))) |
cbe92db4 | 1484 | ctx.iar = tmp_iar; |
647478e0 | 1485 | if (regcache_valid_p (regcache, tdep->ppc_ps_regnum)) |
cbe92db4 | 1486 | ctx.msr = tmp_msr; |
647478e0 | 1487 | if (regcache_valid_p (regcache, tdep->ppc_cr_regnum)) |
cbe92db4 | 1488 | ctx.cr = tmp_cr; |
647478e0 | 1489 | if (regcache_valid_p (regcache, tdep->ppc_lr_regnum)) |
cbe92db4 | 1490 | ctx.lr = tmp_lr; |
647478e0 | 1491 | if (regcache_valid_p (regcache, tdep->ppc_ctr_regnum)) |
cbe92db4 | 1492 | ctx.ctr = tmp_ctr; |
647478e0 | 1493 | if (regcache_valid_p (regcache, tdep->ppc_xer_regnum)) |
cbe92db4 | 1494 | ctx.xer = tmp_xer; |
647478e0 | 1495 | if (regcache_valid_p (regcache, tdep->ppc_xer_regnum)) |
0e061eef | 1496 | ctx.fpscr = tmp_fpscr; |
61c5da0b | 1497 | } |
c11d79f2 KB |
1498 | |
1499 | status = pthdb_pthread_setcontext (pd_session, pdtid, &ctx); | |
1500 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1501 | error (_("aix-thread: store_registers: pthdb_pthread_setcontext returned %s"), |
14fa3751 | 1502 | pd_status2str (status)); |
c11d79f2 KB |
1503 | } |
1504 | ||
0fe7bf7b MS |
1505 | /* Store register REGNO if != -1 or all registers otherwise into |
1506 | kernel thread TID. | |
c11d79f2 | 1507 | |
0fe7bf7b MS |
1508 | AIX provides a way to set all of a kernel thread's GPRs, FPRs, or |
1509 | SPRs, but there's no way to set individual registers within those | |
1510 | groups. Therefore, if REGNO != -1, this function stores an entire | |
1511 | group. */ | |
c11d79f2 KB |
1512 | |
1513 | static void | |
647478e0 UW |
1514 | store_regs_kernel_thread (const struct regcache *regcache, int regno, |
1515 | pthdb_tid_t tid) | |
c11d79f2 | 1516 | { |
c7f30c7a UW |
1517 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1518 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
063715bf JB |
1519 | uint64_t gprs64[ppc_num_gprs]; |
1520 | uint32_t gprs32[ppc_num_gprs]; | |
1521 | double fprs[ppc_num_fprs]; | |
c11d79f2 | 1522 | struct ptxsprs sprs64; |
61c5da0b KB |
1523 | struct ptsprs sprs32; |
1524 | int i; | |
c11d79f2 | 1525 | |
8e2c28d4 | 1526 | if (debug_aix_thread) |
206d3d3c KB |
1527 | fprintf_unfiltered (gdb_stdlog, |
1528 | "store_regs_kernel_thread tid=%lx regno=%d\n", | |
1529 | (long) tid, regno); | |
c11d79f2 | 1530 | |
0fe7bf7b | 1531 | /* General-purpose registers. */ |
daf6dc85 JB |
1532 | if (regno == -1 |
1533 | || (tdep->ppc_gp0_regnum <= regno | |
1534 | && regno < tdep->ppc_gp0_regnum + ppc_num_fprs)) | |
c11d79f2 | 1535 | { |
c11d79f2 | 1536 | if (arch64) |
61c5da0b | 1537 | { |
cbe92db4 KB |
1538 | /* Pre-fetch: some regs may not be in the cache. */ |
1539 | ptrace64aix (PTT_READ_GPRS, tid, (unsigned long) gprs64, 0, NULL); | |
647478e0 | 1540 | fill_gprs64 (regcache, gprs64); |
61c5da0b KB |
1541 | ptrace64aix (PTT_WRITE_GPRS, tid, (unsigned long) gprs64, 0, NULL); |
1542 | } | |
c11d79f2 | 1543 | else |
61c5da0b | 1544 | { |
cbe92db4 KB |
1545 | /* Pre-fetch: some regs may not be in the cache. */ |
1546 | ptrace32 (PTT_READ_GPRS, tid, gprs32, 0, NULL); | |
647478e0 | 1547 | fill_gprs32 (regcache, gprs32); |
61c5da0b KB |
1548 | ptrace32 (PTT_WRITE_GPRS, tid, gprs32, 0, NULL); |
1549 | } | |
c11d79f2 KB |
1550 | } |
1551 | ||
0fe7bf7b | 1552 | /* Floating-point registers. */ |
c11d79f2 | 1553 | |
c7f30c7a | 1554 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1555 | && (regno == -1 |
1556 | || (regno >= tdep->ppc_fp0_regnum | |
1557 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 | 1558 | { |
cbe92db4 | 1559 | /* Pre-fetch: some regs may not be in the cache. */ |
ed1bd5f5 | 1560 | ptrace32 (PTT_READ_FPRS, tid, (void *) fprs, 0, NULL); |
647478e0 | 1561 | fill_fprs (regcache, fprs); |
ed1bd5f5 | 1562 | ptrace32 (PTT_WRITE_FPRS, tid, (void *) fprs, 0, NULL); |
c11d79f2 KB |
1563 | } |
1564 | ||
0fe7bf7b | 1565 | /* Special-purpose registers. */ |
c11d79f2 | 1566 | |
9970f04b | 1567 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1568 | { |
1569 | if (arch64) | |
1570 | { | |
cbe92db4 | 1571 | /* Pre-fetch: some registers won't be in the cache. */ |
0fe7bf7b MS |
1572 | ptrace64aix (PTT_READ_SPRS, tid, |
1573 | (unsigned long) &sprs64, 0, NULL); | |
647478e0 UW |
1574 | fill_sprs64 (regcache, &sprs64.pt_iar, &sprs64.pt_msr, |
1575 | &sprs64.pt_cr, &sprs64.pt_lr, &sprs64.pt_ctr, | |
1576 | &sprs64.pt_xer, &sprs64.pt_fpscr); | |
0fe7bf7b MS |
1577 | ptrace64aix (PTT_WRITE_SPRS, tid, |
1578 | (unsigned long) &sprs64, 0, NULL); | |
c11d79f2 KB |
1579 | } |
1580 | else | |
1581 | { | |
0d16ee5d UW |
1582 | /* The contents of "struct ptspr" were declared as "unsigned |
1583 | long" up to AIX 5.2, but are "unsigned int" since 5.3. | |
1584 | Use temporaries to work around this problem. Also, add an | |
1585 | assert here to make sure we fail if the system header files | |
1586 | use "unsigned long", and the size of that type is not what | |
1587 | the headers expect. */ | |
1588 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1589 | tmp_fpscr; | |
1590 | ||
1591 | gdb_assert (sizeof (sprs32.pt_iar) == 4); | |
1592 | ||
cbe92db4 | 1593 | /* Pre-fetch: some registers won't be in the cache. */ |
c11d79f2 KB |
1594 | ptrace32 (PTT_READ_SPRS, tid, (int *) &sprs32, 0, NULL); |
1595 | ||
647478e0 UW |
1596 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, |
1597 | &tmp_ctr, &tmp_xer, &tmp_fpscr); | |
0d16ee5d UW |
1598 | |
1599 | sprs32.pt_iar = tmp_iar; | |
1600 | sprs32.pt_msr = tmp_msr; | |
1601 | sprs32.pt_cr = tmp_cr; | |
1602 | sprs32.pt_lr = tmp_lr; | |
1603 | sprs32.pt_ctr = tmp_ctr; | |
1604 | sprs32.pt_xer = tmp_xer; | |
1605 | sprs32.pt_fpscr = tmp_fpscr; | |
c11d79f2 | 1606 | |
f1a91342 | 1607 | if (tdep->ppc_mq_regnum >= 0) |
647478e0 UW |
1608 | if (regcache_valid_p (regcache, tdep->ppc_mq_regnum)) |
1609 | regcache_raw_collect (regcache, tdep->ppc_mq_regnum, | |
822c9732 | 1610 | &sprs32.pt_mq); |
c11d79f2 KB |
1611 | |
1612 | ptrace32 (PTT_WRITE_SPRS, tid, (int *) &sprs32, 0, NULL); | |
1613 | } | |
1614 | } | |
1615 | } | |
1616 | ||
0fe7bf7b MS |
1617 | /* Store gdb's current view of the register set into the |
1618 | thread/process specified by inferior_ptid. */ | |
c11d79f2 KB |
1619 | |
1620 | static void | |
c7660128 JB |
1621 | aix_thread_store_registers (struct target_ops *ops, |
1622 | struct regcache *regcache, int regno) | |
c11d79f2 KB |
1623 | { |
1624 | struct thread_info *thread; | |
1625 | pthdb_tid_t tid; | |
d30acaa7 | 1626 | struct target_ops *beneath = find_target_beneath (ops); |
c11d79f2 KB |
1627 | |
1628 | if (!PD_TID (inferior_ptid)) | |
d30acaa7 | 1629 | beneath->to_store_registers (beneath, regcache, regno); |
c11d79f2 KB |
1630 | else |
1631 | { | |
1632 | thread = find_thread_pid (inferior_ptid); | |
1633 | tid = thread->private->tid; | |
1634 | ||
1635 | if (tid == PTHDB_INVALID_TID) | |
56be3814 | 1636 | store_regs_user_thread (regcache, thread->private->pdtid); |
c11d79f2 | 1637 | else |
56be3814 | 1638 | store_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1639 | } |
1640 | } | |
1641 | ||
037a727e UW |
1642 | /* Attempt a transfer all LEN bytes starting at OFFSET between the |
1643 | inferior's OBJECT:ANNEX space and GDB's READBUF/WRITEBUF buffer. | |
1644 | Return the number of bytes actually transferred. */ | |
1645 | ||
1646 | static LONGEST | |
1647 | aix_thread_xfer_partial (struct target_ops *ops, enum target_object object, | |
1648 | const char *annex, gdb_byte *readbuf, | |
1649 | const gdb_byte *writebuf, ULONGEST offset, LONGEST len) | |
c11d79f2 | 1650 | { |
037a727e UW |
1651 | struct cleanup *old_chain = save_inferior_ptid (); |
1652 | LONGEST xfer; | |
d30acaa7 | 1653 | struct target_ops *beneath = find_target_beneath (ops); |
14fa3751 KB |
1654 | |
1655 | inferior_ptid = pid_to_ptid (PIDGET (inferior_ptid)); | |
d30acaa7 JB |
1656 | xfer = beneath->to_xfer_partial (beneath, object, annex, |
1657 | readbuf, writebuf, offset, len); | |
c11d79f2 | 1658 | |
037a727e UW |
1659 | do_cleanups (old_chain); |
1660 | return xfer; | |
c11d79f2 KB |
1661 | } |
1662 | ||
0fe7bf7b | 1663 | /* Clean up after the inferior exits. */ |
c11d79f2 KB |
1664 | |
1665 | static void | |
136d6dae | 1666 | aix_thread_mourn_inferior (struct target_ops *ops) |
c11d79f2 | 1667 | { |
d30acaa7 JB |
1668 | struct target_ops *beneath = find_target_beneath (ops); |
1669 | ||
c11d79f2 | 1670 | pd_deactivate (); |
d30acaa7 | 1671 | beneath->to_mourn_inferior (beneath); |
c11d79f2 KB |
1672 | } |
1673 | ||
0fe7bf7b | 1674 | /* Return whether thread PID is still valid. */ |
c11d79f2 KB |
1675 | |
1676 | static int | |
c7660128 | 1677 | aix_thread_thread_alive (struct target_ops *ops, ptid_t ptid) |
c11d79f2 | 1678 | { |
7fc0c7b5 | 1679 | struct target_ops *beneath = find_target_beneath (ops); |
d30acaa7 | 1680 | |
c11d79f2 | 1681 | if (!PD_TID (ptid)) |
d30acaa7 | 1682 | return beneath->to_thread_alive (beneath, ptid); |
c11d79f2 | 1683 | |
0fe7bf7b MS |
1684 | /* We update the thread list every time the child stops, so all |
1685 | valid threads should be in the thread list. */ | |
c11d79f2 KB |
1686 | return in_thread_list (ptid); |
1687 | } | |
1688 | ||
0fe7bf7b MS |
1689 | /* Return a printable representation of composite PID for use in |
1690 | "info threads" output. */ | |
c11d79f2 KB |
1691 | |
1692 | static char * | |
117de6a9 | 1693 | aix_thread_pid_to_str (struct target_ops *ops, ptid_t ptid) |
c11d79f2 KB |
1694 | { |
1695 | static char *ret = NULL; | |
7fc0c7b5 | 1696 | struct target_ops *beneath = find_target_beneath (ops); |
c11d79f2 KB |
1697 | |
1698 | if (!PD_TID (ptid)) | |
d30acaa7 | 1699 | return beneath->to_pid_to_str (beneath, ptid); |
c11d79f2 KB |
1700 | |
1701 | /* Free previous return value; a new one will be allocated by | |
b435e160 | 1702 | xstrprintf(). */ |
c11d79f2 KB |
1703 | xfree (ret); |
1704 | ||
edefbb7c | 1705 | ret = xstrprintf (_("Thread %ld"), ptid_get_tid (ptid)); |
c11d79f2 KB |
1706 | return ret; |
1707 | } | |
1708 | ||
0fe7bf7b MS |
1709 | /* Return a printable representation of extra information about |
1710 | THREAD, for use in "info threads" output. */ | |
c11d79f2 KB |
1711 | |
1712 | static char * | |
206d3d3c | 1713 | aix_thread_extra_thread_info (struct thread_info *thread) |
c11d79f2 KB |
1714 | { |
1715 | struct ui_file *buf; | |
1716 | int status; | |
1717 | pthdb_pthread_t pdtid; | |
1718 | pthdb_tid_t tid; | |
1719 | pthdb_state_t state; | |
1720 | pthdb_suspendstate_t suspendstate; | |
1721 | pthdb_detachstate_t detachstate; | |
1722 | int cancelpend; | |
1723 | long length; | |
1724 | static char *ret = NULL; | |
1725 | ||
1726 | if (!PD_TID (thread->ptid)) | |
1727 | return NULL; | |
1728 | ||
1729 | buf = mem_fileopen (); | |
1730 | ||
1731 | pdtid = thread->private->pdtid; | |
1732 | tid = thread->private->tid; | |
1733 | ||
1734 | if (tid != PTHDB_INVALID_TID) | |
edefbb7c | 1735 | /* i18n: Like "thread-identifier %d, [state] running, suspended" */ |
0d16ee5d | 1736 | fprintf_unfiltered (buf, _("tid %d"), (int)tid); |
c11d79f2 KB |
1737 | |
1738 | status = pthdb_pthread_state (pd_session, pdtid, &state); | |
1739 | if (status != PTHDB_SUCCESS) | |
1740 | state = PST_NOTSUP; | |
1741 | fprintf_unfiltered (buf, ", %s", state2str (state)); | |
1742 | ||
0fe7bf7b MS |
1743 | status = pthdb_pthread_suspendstate (pd_session, pdtid, |
1744 | &suspendstate); | |
c11d79f2 | 1745 | if (status == PTHDB_SUCCESS && suspendstate == PSS_SUSPENDED) |
edefbb7c AC |
1746 | /* i18n: Like "Thread-Id %d, [state] running, suspended" */ |
1747 | fprintf_unfiltered (buf, _(", suspended")); | |
c11d79f2 | 1748 | |
0fe7bf7b MS |
1749 | status = pthdb_pthread_detachstate (pd_session, pdtid, |
1750 | &detachstate); | |
c11d79f2 | 1751 | if (status == PTHDB_SUCCESS && detachstate == PDS_DETACHED) |
edefbb7c AC |
1752 | /* i18n: Like "Thread-Id %d, [state] running, detached" */ |
1753 | fprintf_unfiltered (buf, _(", detached")); | |
c11d79f2 KB |
1754 | |
1755 | pthdb_pthread_cancelpend (pd_session, pdtid, &cancelpend); | |
1756 | if (status == PTHDB_SUCCESS && cancelpend) | |
edefbb7c AC |
1757 | /* i18n: Like "Thread-Id %d, [state] running, cancel pending" */ |
1758 | fprintf_unfiltered (buf, _(", cancel pending")); | |
c11d79f2 KB |
1759 | |
1760 | ui_file_write (buf, "", 1); | |
1761 | ||
1762 | xfree (ret); /* Free old buffer. */ | |
1763 | ||
1764 | ret = ui_file_xstrdup (buf, &length); | |
1765 | ui_file_delete (buf); | |
1766 | ||
1767 | return ret; | |
1768 | } | |
1769 | ||
c7660128 JB |
1770 | static ptid_t |
1771 | aix_thread_get_ada_task_ptid (long lwp, long thread) | |
1772 | { | |
1773 | return ptid_build (ptid_get_pid (inferior_ptid), 0, thread); | |
1774 | } | |
1775 | ||
206d3d3c | 1776 | /* Initialize target aix_thread_ops. */ |
c11d79f2 KB |
1777 | |
1778 | static void | |
206d3d3c | 1779 | init_aix_thread_ops (void) |
c11d79f2 | 1780 | { |
206d3d3c | 1781 | aix_thread_ops.to_shortname = "aix-threads"; |
edefbb7c AC |
1782 | aix_thread_ops.to_longname = _("AIX pthread support"); |
1783 | aix_thread_ops.to_doc = _("AIX pthread support"); | |
206d3d3c KB |
1784 | |
1785 | aix_thread_ops.to_attach = aix_thread_attach; | |
1786 | aix_thread_ops.to_detach = aix_thread_detach; | |
1787 | aix_thread_ops.to_resume = aix_thread_resume; | |
1788 | aix_thread_ops.to_wait = aix_thread_wait; | |
1789 | aix_thread_ops.to_fetch_registers = aix_thread_fetch_registers; | |
1790 | aix_thread_ops.to_store_registers = aix_thread_store_registers; | |
037a727e | 1791 | aix_thread_ops.to_xfer_partial = aix_thread_xfer_partial; |
206d3d3c | 1792 | /* No need for aix_thread_ops.to_create_inferior, because we activate thread |
0fe7bf7b | 1793 | debugging when the inferior reaches pd_brk_addr. */ |
206d3d3c KB |
1794 | aix_thread_ops.to_mourn_inferior = aix_thread_mourn_inferior; |
1795 | aix_thread_ops.to_thread_alive = aix_thread_thread_alive; | |
1796 | aix_thread_ops.to_pid_to_str = aix_thread_pid_to_str; | |
1797 | aix_thread_ops.to_extra_thread_info = aix_thread_extra_thread_info; | |
c7660128 | 1798 | aix_thread_ops.to_get_ada_task_ptid = aix_thread_get_ada_task_ptid; |
206d3d3c KB |
1799 | aix_thread_ops.to_stratum = thread_stratum; |
1800 | aix_thread_ops.to_magic = OPS_MAGIC; | |
c11d79f2 KB |
1801 | } |
1802 | ||
1803 | /* Module startup initialization function, automagically called by | |
0fe7bf7b | 1804 | init.c. */ |
c11d79f2 KB |
1805 | |
1806 | void | |
1807 | _initialize_aix_thread (void) | |
1808 | { | |
206d3d3c KB |
1809 | init_aix_thread_ops (); |
1810 | add_target (&aix_thread_ops); | |
c11d79f2 | 1811 | |
0fe7bf7b | 1812 | /* Notice when object files get loaded and unloaded. */ |
06d3b283 | 1813 | observer_attach_new_objfile (new_objfile); |
8e2c28d4 | 1814 | |
577b7047 | 1815 | add_setshow_boolean_cmd ("aix-thread", class_maintenance, &debug_aix_thread, |
edefbb7c AC |
1816 | _("Set debugging of AIX thread module."), |
1817 | _("Show debugging of AIX thread module."), | |
1818 | _("Enables debugging output (used to debug GDB)."), | |
2c5b56ce AC |
1819 | NULL, NULL, /* FIXME: i18n: Debugging of AIX thread module is \"%d\". */ |
1820 | &setdebuglist, &showdebuglist); | |
c11d79f2 | 1821 | } |