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1 | /* Low level interface for debugging AIX 4.3+ pthreads. |
2 | ||
28e7fd62 | 3 | Copyright (C) 1999-2013 Free Software Foundation, Inc. |
c11d79f2 KB |
4 | Written by Nick Duffek <nsd@redhat.com>. |
5 | ||
6 | This file is part of GDB. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
c11d79f2 KB |
11 | (at your option) any later version. |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c11d79f2 KB |
20 | |
21 | ||
22 | /* This module uses the libpthdebug.a library provided by AIX 4.3+ for | |
23 | debugging pthread applications. | |
24 | ||
25 | Some name prefix conventions: | |
26 | pthdb_ provided by libpthdebug.a | |
27 | pdc_ callbacks that this module provides to libpthdebug.a | |
28 | pd_ variables or functions interfacing with libpthdebug.a | |
29 | ||
30 | libpthdebug peculiarities: | |
31 | ||
0fe7bf7b MS |
32 | - pthdb_ptid_pthread() is prototyped in <sys/pthdebug.h>, but |
33 | it's not documented, and after several calls it stops working | |
34 | and causes other libpthdebug functions to fail. | |
c11d79f2 | 35 | |
0fe7bf7b MS |
36 | - pthdb_tid_pthread() doesn't always work after |
37 | pthdb_session_update(), but it does work after cycling through | |
38 | all threads using pthdb_pthread(). | |
c11d79f2 KB |
39 | |
40 | */ | |
41 | ||
42 | #include "defs.h" | |
61c5da0b | 43 | #include "gdb_assert.h" |
c11d79f2 KB |
44 | #include "gdbthread.h" |
45 | #include "target.h" | |
46 | #include "inferior.h" | |
47 | #include "regcache.h" | |
8e2c28d4 | 48 | #include "gdbcmd.h" |
27bae383 | 49 | #include "ppc-tdep.h" |
0d4d5484 | 50 | #include "gdb_string.h" |
06d3b283 | 51 | #include "observer.h" |
c11d79f2 | 52 | |
c11d79f2 KB |
53 | #include <procinfo.h> |
54 | #include <sys/types.h> | |
55 | #include <sys/ptrace.h> | |
56 | #include <sys/reg.h> | |
c11d79f2 KB |
57 | #include <sched.h> |
58 | #include <sys/pthdebug.h> | |
59 | ||
d645e32e | 60 | #if !HAVE_DECL_GETTHRDS |
eff44fea | 61 | extern int getthrds (pid_t, struct thrdsinfo64 *, int, tid_t *, int); |
d645e32e JB |
62 | #endif |
63 | ||
0fe7bf7b | 64 | /* Whether to emit debugging output. */ |
8e2c28d4 | 65 | static int debug_aix_thread; |
c11d79f2 | 66 | |
0fe7bf7b | 67 | /* In AIX 5.1, functions use pthdb_tid_t instead of tid_t. */ |
c11d79f2 KB |
68 | #ifndef PTHDB_VERSION_3 |
69 | #define pthdb_tid_t tid_t | |
70 | #endif | |
71 | ||
0fe7bf7b | 72 | /* Return whether to treat PID as a debuggable thread id. */ |
c11d79f2 KB |
73 | |
74 | #define PD_TID(ptid) (pd_active && ptid_get_tid (ptid) != 0) | |
75 | ||
76 | /* Build a thread ptid. */ | |
77 | #define BUILD_THREAD(TID, PID) ptid_build (PID, 0, TID) | |
78 | ||
79 | /* Build and lwp ptid. */ | |
80 | #define BUILD_LWP(LWP, PID) MERGEPID (PID, LWP) | |
81 | ||
c11d79f2 | 82 | /* pthdb_user_t value that we pass to pthdb functions. 0 causes |
0fe7bf7b | 83 | PTHDB_BAD_USER errors, so use 1. */ |
c11d79f2 KB |
84 | |
85 | #define PD_USER 1 | |
86 | ||
0fe7bf7b | 87 | /* Success and failure values returned by pthdb callbacks. */ |
c11d79f2 KB |
88 | |
89 | #define PDC_SUCCESS PTHDB_SUCCESS | |
90 | #define PDC_FAILURE PTHDB_CALLBACK | |
91 | ||
0fe7bf7b | 92 | /* Private data attached to each element in GDB's thread list. */ |
c11d79f2 KB |
93 | |
94 | struct private_thread_info { | |
0fe7bf7b | 95 | pthdb_pthread_t pdtid; /* thread's libpthdebug id */ |
c11d79f2 KB |
96 | pthdb_tid_t tid; /* kernel thread id */ |
97 | }; | |
98 | ||
0fe7bf7b | 99 | /* Information about a thread of which libpthdebug is aware. */ |
c11d79f2 KB |
100 | |
101 | struct pd_thread { | |
102 | pthdb_pthread_t pdtid; | |
103 | pthread_t pthid; | |
104 | pthdb_tid_t tid; | |
105 | }; | |
106 | ||
0fe7bf7b | 107 | /* This module's target-specific operations, active while pd_able is true. */ |
c11d79f2 | 108 | |
206d3d3c | 109 | static struct target_ops aix_thread_ops; |
c11d79f2 | 110 | |
0fe7bf7b MS |
111 | /* Address of the function that libpthread will call when libpthdebug |
112 | is ready to be initialized. */ | |
c11d79f2 KB |
113 | |
114 | static CORE_ADDR pd_brk_addr; | |
115 | ||
0fe7bf7b | 116 | /* Whether the current application is debuggable by pthdb. */ |
c11d79f2 KB |
117 | |
118 | static int pd_able = 0; | |
119 | ||
0fe7bf7b | 120 | /* Whether a threaded application is being debugged. */ |
c11d79f2 KB |
121 | |
122 | static int pd_active = 0; | |
123 | ||
0fe7bf7b MS |
124 | /* Whether the current architecture is 64-bit. |
125 | Only valid when pd_able is true. */ | |
c11d79f2 KB |
126 | |
127 | static int arch64; | |
128 | ||
0fe7bf7b | 129 | /* Forward declarations for pthdb callbacks. */ |
c11d79f2 KB |
130 | |
131 | static int pdc_symbol_addrs (pthdb_user_t, pthdb_symbol_t *, int); | |
132 | static int pdc_read_data (pthdb_user_t, void *, pthdb_addr_t, size_t); | |
133 | static int pdc_write_data (pthdb_user_t, void *, pthdb_addr_t, size_t); | |
134 | static int pdc_read_regs (pthdb_user_t user, pthdb_tid_t tid, | |
0fe7bf7b MS |
135 | unsigned long long flags, |
136 | pthdb_context_t *context); | |
c11d79f2 | 137 | static int pdc_write_regs (pthdb_user_t user, pthdb_tid_t tid, |
0fe7bf7b MS |
138 | unsigned long long flags, |
139 | pthdb_context_t *context); | |
c11d79f2 KB |
140 | static int pdc_alloc (pthdb_user_t, size_t, void **); |
141 | static int pdc_realloc (pthdb_user_t, void *, size_t, void **); | |
142 | static int pdc_dealloc (pthdb_user_t, void *); | |
143 | ||
0fe7bf7b | 144 | /* pthdb callbacks. */ |
c11d79f2 KB |
145 | |
146 | static pthdb_callbacks_t pd_callbacks = { | |
147 | pdc_symbol_addrs, | |
148 | pdc_read_data, | |
149 | pdc_write_data, | |
150 | pdc_read_regs, | |
151 | pdc_write_regs, | |
152 | pdc_alloc, | |
153 | pdc_realloc, | |
154 | pdc_dealloc, | |
155 | NULL | |
156 | }; | |
157 | ||
0fe7bf7b | 158 | /* Current pthdb session. */ |
c11d79f2 KB |
159 | |
160 | static pthdb_session_t pd_session; | |
161 | ||
0fe7bf7b MS |
162 | /* Return a printable representation of pthdebug function return |
163 | STATUS. */ | |
c11d79f2 KB |
164 | |
165 | static char * | |
166 | pd_status2str (int status) | |
167 | { | |
168 | switch (status) | |
169 | { | |
170 | case PTHDB_SUCCESS: return "SUCCESS"; | |
171 | case PTHDB_NOSYS: return "NOSYS"; | |
172 | case PTHDB_NOTSUP: return "NOTSUP"; | |
173 | case PTHDB_BAD_VERSION: return "BAD_VERSION"; | |
174 | case PTHDB_BAD_USER: return "BAD_USER"; | |
175 | case PTHDB_BAD_SESSION: return "BAD_SESSION"; | |
176 | case PTHDB_BAD_MODE: return "BAD_MODE"; | |
177 | case PTHDB_BAD_FLAGS: return "BAD_FLAGS"; | |
178 | case PTHDB_BAD_CALLBACK: return "BAD_CALLBACK"; | |
179 | case PTHDB_BAD_POINTER: return "BAD_POINTER"; | |
180 | case PTHDB_BAD_CMD: return "BAD_CMD"; | |
181 | case PTHDB_BAD_PTHREAD: return "BAD_PTHREAD"; | |
182 | case PTHDB_BAD_ATTR: return "BAD_ATTR"; | |
183 | case PTHDB_BAD_MUTEX: return "BAD_MUTEX"; | |
184 | case PTHDB_BAD_MUTEXATTR: return "BAD_MUTEXATTR"; | |
185 | case PTHDB_BAD_COND: return "BAD_COND"; | |
186 | case PTHDB_BAD_CONDATTR: return "BAD_CONDATTR"; | |
187 | case PTHDB_BAD_RWLOCK: return "BAD_RWLOCK"; | |
188 | case PTHDB_BAD_RWLOCKATTR: return "BAD_RWLOCKATTR"; | |
189 | case PTHDB_BAD_KEY: return "BAD_KEY"; | |
190 | case PTHDB_BAD_PTID: return "BAD_PTID"; | |
191 | case PTHDB_BAD_TID: return "BAD_TID"; | |
192 | case PTHDB_CALLBACK: return "CALLBACK"; | |
193 | case PTHDB_CONTEXT: return "CONTEXT"; | |
194 | case PTHDB_HELD: return "HELD"; | |
195 | case PTHDB_NOT_HELD: return "NOT_HELD"; | |
196 | case PTHDB_MEMORY: return "MEMORY"; | |
197 | case PTHDB_NOT_PTHREADED: return "NOT_PTHREADED"; | |
198 | case PTHDB_SYMBOL: return "SYMBOL"; | |
199 | case PTHDB_NOT_AVAIL: return "NOT_AVAIL"; | |
200 | case PTHDB_INTERNAL: return "INTERNAL"; | |
201 | default: return "UNKNOWN"; | |
202 | } | |
203 | } | |
204 | ||
0fe7bf7b MS |
205 | /* A call to ptrace(REQ, ID, ...) just returned RET. Check for |
206 | exceptional conditions and either return nonlocally or else return | |
207 | 1 for success and 0 for failure. */ | |
c11d79f2 KB |
208 | |
209 | static int | |
210 | ptrace_check (int req, int id, int ret) | |
211 | { | |
212 | if (ret == 0 && !errno) | |
213 | return 1; | |
214 | ||
0fe7bf7b MS |
215 | /* According to ptrace(2), ptrace may fail with EPERM if "the |
216 | Identifier parameter corresponds to a kernel thread which is | |
217 | stopped in kernel mode and whose computational state cannot be | |
218 | read or written." This happens quite often with register reads. */ | |
c11d79f2 KB |
219 | |
220 | switch (req) | |
221 | { | |
222 | case PTT_READ_GPRS: | |
223 | case PTT_READ_FPRS: | |
224 | case PTT_READ_SPRS: | |
225 | if (ret == -1 && errno == EPERM) | |
42cc437f KB |
226 | { |
227 | if (debug_aix_thread) | |
0fe7bf7b | 228 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 229 | "ptrace (%d, %d) = %d (errno = %d)\n", |
42cc437f KB |
230 | req, id, ret, errno); |
231 | return ret == -1 ? 0 : 1; | |
232 | } | |
c11d79f2 KB |
233 | break; |
234 | } | |
edefbb7c | 235 | error (_("aix-thread: ptrace (%d, %d) returned %d (errno = %d %s)"), |
be006b8b | 236 | req, id, ret, errno, safe_strerror (errno)); |
0fe7bf7b | 237 | return 0; /* Not reached. */ |
c11d79f2 KB |
238 | } |
239 | ||
0fe7bf7b | 240 | /* Call ptracex (REQ, ID, ADDR, DATA, BUF). Return success. */ |
c11d79f2 KB |
241 | |
242 | static int | |
243 | ptrace64aix (int req, int id, long long addr, int data, int *buf) | |
244 | { | |
245 | errno = 0; | |
246 | return ptrace_check (req, id, ptracex (req, id, addr, data, buf)); | |
247 | } | |
248 | ||
0fe7bf7b | 249 | /* Call ptrace (REQ, ID, ADDR, DATA, BUF). Return success. */ |
c11d79f2 KB |
250 | |
251 | static int | |
252 | ptrace32 (int req, int id, int *addr, int data, int *buf) | |
253 | { | |
254 | errno = 0; | |
0fe7bf7b | 255 | return ptrace_check (req, id, |
206d3d3c | 256 | ptrace (req, id, (int *) addr, data, buf)); |
c11d79f2 KB |
257 | } |
258 | ||
0fe7bf7b MS |
259 | /* If *PIDP is a composite process/thread id, convert it to a |
260 | process id. */ | |
c11d79f2 KB |
261 | |
262 | static void | |
263 | pid_to_prc (ptid_t *ptidp) | |
264 | { | |
265 | ptid_t ptid; | |
266 | ||
267 | ptid = *ptidp; | |
268 | if (PD_TID (ptid)) | |
269 | *ptidp = pid_to_ptid (PIDGET (ptid)); | |
270 | } | |
271 | ||
0fe7bf7b MS |
272 | /* pthdb callback: for <i> from 0 to COUNT, set SYMBOLS[<i>].addr to |
273 | the address of SYMBOLS[<i>].name. */ | |
c11d79f2 KB |
274 | |
275 | static int | |
276 | pdc_symbol_addrs (pthdb_user_t user, pthdb_symbol_t *symbols, int count) | |
277 | { | |
278 | struct minimal_symbol *ms; | |
279 | int i; | |
280 | char *name; | |
281 | ||
8e2c28d4 KB |
282 | if (debug_aix_thread) |
283 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 284 | "pdc_symbol_addrs (user = %ld, symbols = 0x%lx, count = %d)\n", |
8e2c28d4 | 285 | user, (long) symbols, count); |
c11d79f2 KB |
286 | |
287 | for (i = 0; i < count; i++) | |
288 | { | |
289 | name = symbols[i].name; | |
8e2c28d4 | 290 | if (debug_aix_thread) |
0fe7bf7b | 291 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 292 | " symbols[%d].name = \"%s\"\n", i, name); |
c11d79f2 KB |
293 | |
294 | if (!*name) | |
295 | symbols[i].addr = 0; | |
296 | else | |
297 | { | |
298 | if (!(ms = lookup_minimal_symbol (name, NULL, NULL))) | |
299 | { | |
8e2c28d4 | 300 | if (debug_aix_thread) |
27bae383 | 301 | fprintf_unfiltered (gdb_stdlog, " returning PDC_FAILURE\n"); |
c11d79f2 KB |
302 | return PDC_FAILURE; |
303 | } | |
304 | symbols[i].addr = SYMBOL_VALUE_ADDRESS (ms); | |
305 | } | |
8e2c28d4 | 306 | if (debug_aix_thread) |
27bae383 | 307 | fprintf_unfiltered (gdb_stdlog, " symbols[%d].addr = %s\n", |
bb599908 | 308 | i, hex_string (symbols[i].addr)); |
c11d79f2 | 309 | } |
8e2c28d4 | 310 | if (debug_aix_thread) |
27bae383 | 311 | fprintf_unfiltered (gdb_stdlog, " returning PDC_SUCCESS\n"); |
c11d79f2 KB |
312 | return PDC_SUCCESS; |
313 | } | |
314 | ||
0fe7bf7b MS |
315 | /* Read registers call back function should be able to read the |
316 | context information of a debuggee kernel thread from an active | |
317 | process or from a core file. The information should be formatted | |
318 | in context64 form for both 32-bit and 64-bit process. | |
319 | If successful return 0, else non-zero is returned. */ | |
320 | ||
c11d79f2 KB |
321 | static int |
322 | pdc_read_regs (pthdb_user_t user, | |
323 | pthdb_tid_t tid, | |
324 | unsigned long long flags, | |
325 | pthdb_context_t *context) | |
326 | { | |
0fe7bf7b MS |
327 | /* This function doesn't appear to be used, so we could probably |
328 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
329 | complain and several thread debug functions will fail. In case | |
330 | this is needed, I have implemented what I think it should do, | |
331 | however this code is untested. */ | |
332 | ||
063715bf JB |
333 | uint64_t gprs64[ppc_num_gprs]; |
334 | uint32_t gprs32[ppc_num_gprs]; | |
335 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
336 | struct ptxsprs sprs64; |
337 | struct ptsprs sprs32; | |
338 | ||
8e2c28d4 | 339 | if (debug_aix_thread) |
27bae383 | 340 | fprintf_unfiltered (gdb_stdlog, "pdc_read_regs tid=%d flags=%s\n", |
bb599908 | 341 | (int) tid, hex_string (flags)); |
c11d79f2 | 342 | |
0fe7bf7b | 343 | /* General-purpose registers. */ |
c11d79f2 KB |
344 | if (flags & PTHDB_FLAG_GPRS) |
345 | { | |
346 | if (arch64) | |
347 | { | |
0fe7bf7b MS |
348 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
349 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 KB |
350 | memset (gprs64, 0, sizeof (gprs64)); |
351 | memcpy (context->gpr, gprs64, sizeof(gprs64)); | |
352 | } | |
353 | else | |
354 | { | |
355 | if (!ptrace32 (PTT_READ_GPRS, tid, gprs32, 0, NULL)) | |
356 | memset (gprs32, 0, sizeof (gprs32)); | |
357 | memcpy (context->gpr, gprs32, sizeof(gprs32)); | |
358 | } | |
359 | } | |
360 | ||
0fe7bf7b | 361 | /* Floating-point registers. */ |
c11d79f2 KB |
362 | if (flags & PTHDB_FLAG_FPRS) |
363 | { | |
ed1bd5f5 | 364 | if (!ptrace32 (PTT_READ_FPRS, tid, (void *) fprs, 0, NULL)) |
c11d79f2 | 365 | memset (fprs, 0, sizeof (fprs)); |
46bba1ef | 366 | memcpy (context->fpr, fprs, sizeof(fprs)); |
c11d79f2 KB |
367 | } |
368 | ||
0fe7bf7b | 369 | /* Special-purpose registers. */ |
c11d79f2 KB |
370 | if (flags & PTHDB_FLAG_SPRS) |
371 | { | |
372 | if (arch64) | |
373 | { | |
0fe7bf7b MS |
374 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
375 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 KB |
376 | memset (&sprs64, 0, sizeof (sprs64)); |
377 | memcpy (&context->msr, &sprs64, sizeof(sprs64)); | |
378 | } | |
379 | else | |
380 | { | |
381 | if (!ptrace32 (PTT_READ_SPRS, tid, (int *) &sprs32, 0, NULL)) | |
382 | memset (&sprs32, 0, sizeof (sprs32)); | |
383 | memcpy (&context->msr, &sprs32, sizeof(sprs32)); | |
384 | } | |
385 | } | |
386 | return 0; | |
387 | } | |
388 | ||
0fe7bf7b | 389 | /* Write register function should be able to write requested context |
0963b4bd | 390 | information to specified debuggee's kernel thread id. |
0fe7bf7b MS |
391 | If successful return 0, else non-zero is returned. */ |
392 | ||
c11d79f2 KB |
393 | static int |
394 | pdc_write_regs (pthdb_user_t user, | |
395 | pthdb_tid_t tid, | |
396 | unsigned long long flags, | |
397 | pthdb_context_t *context) | |
398 | { | |
0fe7bf7b MS |
399 | /* This function doesn't appear to be used, so we could probably |
400 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
401 | complain and several thread debug functions will fail. In case | |
402 | this is needed, I have implemented what I think it should do, | |
403 | however this code is untested. */ | |
c11d79f2 | 404 | |
8e2c28d4 | 405 | if (debug_aix_thread) |
27bae383 | 406 | fprintf_unfiltered (gdb_stdlog, "pdc_write_regs tid=%d flags=%s\n", |
bb599908 | 407 | (int) tid, hex_string (flags)); |
c11d79f2 | 408 | |
0fe7bf7b | 409 | /* General-purpose registers. */ |
c11d79f2 KB |
410 | if (flags & PTHDB_FLAG_GPRS) |
411 | { | |
412 | if (arch64) | |
0fe7bf7b | 413 | ptrace64aix (PTT_WRITE_GPRS, tid, |
206d3d3c | 414 | (unsigned long) context->gpr, 0, NULL); |
c11d79f2 | 415 | else |
206d3d3c | 416 | ptrace32 (PTT_WRITE_GPRS, tid, (int *) context->gpr, 0, NULL); |
c11d79f2 KB |
417 | } |
418 | ||
0fe7bf7b | 419 | /* Floating-point registers. */ |
c11d79f2 KB |
420 | if (flags & PTHDB_FLAG_FPRS) |
421 | { | |
206d3d3c | 422 | ptrace32 (PTT_WRITE_FPRS, tid, (int *) context->fpr, 0, NULL); |
c11d79f2 KB |
423 | } |
424 | ||
0fe7bf7b | 425 | /* Special-purpose registers. */ |
c11d79f2 KB |
426 | if (flags & PTHDB_FLAG_SPRS) |
427 | { | |
428 | if (arch64) | |
429 | { | |
0fe7bf7b MS |
430 | ptrace64aix (PTT_WRITE_SPRS, tid, |
431 | (unsigned long) &context->msr, 0, NULL); | |
c11d79f2 KB |
432 | } |
433 | else | |
434 | { | |
ed1bd5f5 | 435 | ptrace32 (PTT_WRITE_SPRS, tid, (void *) &context->msr, 0, NULL); |
c11d79f2 KB |
436 | } |
437 | } | |
438 | return 0; | |
439 | } | |
440 | ||
0fe7bf7b | 441 | /* pthdb callback: read LEN bytes from process ADDR into BUF. */ |
c11d79f2 KB |
442 | |
443 | static int | |
0fe7bf7b MS |
444 | pdc_read_data (pthdb_user_t user, void *buf, |
445 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
446 | { |
447 | int status, ret; | |
448 | ||
8e2c28d4 KB |
449 | if (debug_aix_thread) |
450 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 451 | "pdc_read_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 452 | user, (long) buf, hex_string (addr), len); |
c11d79f2 KB |
453 | |
454 | status = target_read_memory (addr, buf, len); | |
455 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; | |
456 | ||
8e2c28d4 | 457 | if (debug_aix_thread) |
27bae383 | 458 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", |
0fe7bf7b | 459 | status, pd_status2str (ret)); |
c11d79f2 KB |
460 | return ret; |
461 | } | |
462 | ||
0fe7bf7b | 463 | /* pthdb callback: write LEN bytes from BUF to process ADDR. */ |
c11d79f2 KB |
464 | |
465 | static int | |
0fe7bf7b MS |
466 | pdc_write_data (pthdb_user_t user, void *buf, |
467 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
468 | { |
469 | int status, ret; | |
470 | ||
8e2c28d4 KB |
471 | if (debug_aix_thread) |
472 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 473 | "pdc_write_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 474 | user, (long) buf, hex_string (addr), len); |
c11d79f2 KB |
475 | |
476 | status = target_write_memory (addr, buf, len); | |
477 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; | |
478 | ||
8e2c28d4 | 479 | if (debug_aix_thread) |
27bae383 | 480 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", status, |
8e2c28d4 | 481 | pd_status2str (ret)); |
c11d79f2 KB |
482 | return ret; |
483 | } | |
484 | ||
0fe7bf7b MS |
485 | /* pthdb callback: allocate a LEN-byte buffer and store a pointer to it |
486 | in BUFP. */ | |
c11d79f2 KB |
487 | |
488 | static int | |
489 | pdc_alloc (pthdb_user_t user, size_t len, void **bufp) | |
490 | { | |
8e2c28d4 KB |
491 | if (debug_aix_thread) |
492 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 493 | "pdc_alloc (user = %ld, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 494 | user, len, (long) bufp); |
c11d79f2 | 495 | *bufp = xmalloc (len); |
8e2c28d4 | 496 | if (debug_aix_thread) |
0fe7bf7b | 497 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 498 | " malloc returned 0x%lx\n", (long) *bufp); |
0fe7bf7b MS |
499 | |
500 | /* Note: xmalloc() can't return 0; therefore PDC_FAILURE will never | |
501 | be returned. */ | |
502 | ||
c11d79f2 KB |
503 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
504 | } | |
505 | ||
0fe7bf7b MS |
506 | /* pthdb callback: reallocate BUF, which was allocated by the alloc or |
507 | realloc callback, so that it contains LEN bytes, and store a | |
508 | pointer to the result in BUFP. */ | |
c11d79f2 KB |
509 | |
510 | static int | |
511 | pdc_realloc (pthdb_user_t user, void *buf, size_t len, void **bufp) | |
512 | { | |
8e2c28d4 KB |
513 | if (debug_aix_thread) |
514 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 515 | "pdc_realloc (user = %ld, buf = 0x%lx, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 516 | user, (long) buf, len, (long) bufp); |
be006b8b | 517 | *bufp = xrealloc (buf, len); |
8e2c28d4 | 518 | if (debug_aix_thread) |
0fe7bf7b | 519 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 520 | " realloc returned 0x%lx\n", (long) *bufp); |
c11d79f2 KB |
521 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
522 | } | |
523 | ||
0fe7bf7b MS |
524 | /* pthdb callback: free BUF, which was allocated by the alloc or |
525 | realloc callback. */ | |
c11d79f2 KB |
526 | |
527 | static int | |
528 | pdc_dealloc (pthdb_user_t user, void *buf) | |
529 | { | |
8e2c28d4 | 530 | if (debug_aix_thread) |
0fe7bf7b | 531 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 532 | "pdc_free (user = %ld, buf = 0x%lx)\n", user, |
8e2c28d4 | 533 | (long) buf); |
c11d79f2 KB |
534 | xfree (buf); |
535 | return PDC_SUCCESS; | |
536 | } | |
537 | ||
0fe7bf7b | 538 | /* Return a printable representation of pthread STATE. */ |
c11d79f2 KB |
539 | |
540 | static char * | |
541 | state2str (pthdb_state_t state) | |
542 | { | |
543 | switch (state) | |
544 | { | |
edefbb7c AC |
545 | case PST_IDLE: |
546 | /* i18n: Like "Thread-Id %d, [state] idle" */ | |
547 | return _("idle"); /* being created */ | |
548 | case PST_RUN: | |
549 | /* i18n: Like "Thread-Id %d, [state] running" */ | |
550 | return _("running"); /* running */ | |
551 | case PST_SLEEP: | |
552 | /* i18n: Like "Thread-Id %d, [state] sleeping" */ | |
553 | return _("sleeping"); /* awaiting an event */ | |
554 | case PST_READY: | |
555 | /* i18n: Like "Thread-Id %d, [state] ready" */ | |
556 | return _("ready"); /* runnable */ | |
557 | case PST_TERM: | |
558 | /* i18n: Like "Thread-Id %d, [state] finished" */ | |
559 | return _("finished"); /* awaiting a join/detach */ | |
560 | default: | |
561 | /* i18n: Like "Thread-Id %d, [state] unknown" */ | |
562 | return _("unknown"); | |
c11d79f2 KB |
563 | } |
564 | } | |
565 | ||
0fe7bf7b | 566 | /* qsort() comparison function for sorting pd_thread structs by pthid. */ |
c11d79f2 KB |
567 | |
568 | static int | |
569 | pcmp (const void *p1v, const void *p2v) | |
570 | { | |
571 | struct pd_thread *p1 = (struct pd_thread *) p1v; | |
572 | struct pd_thread *p2 = (struct pd_thread *) p2v; | |
573 | return p1->pthid < p2->pthid ? -1 : p1->pthid > p2->pthid; | |
574 | } | |
575 | ||
77f0be4e JB |
576 | /* iterate_over_threads() callback for counting GDB threads. |
577 | ||
578 | Do not count the main thread (whose tid is zero). This matches | |
579 | the list of threads provided by the pthreaddebug library, which | |
580 | does not include that main thread either, and thus allows us | |
581 | to compare the two lists. */ | |
c11d79f2 KB |
582 | |
583 | static int | |
584 | giter_count (struct thread_info *thread, void *countp) | |
585 | { | |
77f0be4e JB |
586 | if (PD_TID (thread->ptid)) |
587 | (*(int *) countp)++; | |
c11d79f2 KB |
588 | return 0; |
589 | } | |
590 | ||
77f0be4e JB |
591 | /* iterate_over_threads() callback for accumulating GDB thread pids. |
592 | ||
593 | Do not include the main thread (whose tid is zero). This matches | |
594 | the list of threads provided by the pthreaddebug library, which | |
595 | does not include that main thread either, and thus allows us | |
596 | to compare the two lists. */ | |
c11d79f2 KB |
597 | |
598 | static int | |
599 | giter_accum (struct thread_info *thread, void *bufp) | |
600 | { | |
77f0be4e JB |
601 | if (PD_TID (thread->ptid)) |
602 | { | |
603 | **(struct thread_info ***) bufp = thread; | |
604 | (*(struct thread_info ***) bufp)++; | |
605 | } | |
c11d79f2 KB |
606 | return 0; |
607 | } | |
608 | ||
609 | /* ptid comparison function */ | |
0fe7bf7b | 610 | |
c11d79f2 KB |
611 | static int |
612 | ptid_cmp (ptid_t ptid1, ptid_t ptid2) | |
613 | { | |
614 | int pid1, pid2; | |
615 | ||
616 | if (ptid_get_pid (ptid1) < ptid_get_pid (ptid2)) | |
617 | return -1; | |
618 | else if (ptid_get_pid (ptid1) > ptid_get_pid (ptid2)) | |
619 | return 1; | |
620 | else if (ptid_get_tid (ptid1) < ptid_get_tid (ptid2)) | |
621 | return -1; | |
622 | else if (ptid_get_tid (ptid1) > ptid_get_tid (ptid2)) | |
623 | return 1; | |
624 | else if (ptid_get_lwp (ptid1) < ptid_get_lwp (ptid2)) | |
625 | return -1; | |
626 | else if (ptid_get_lwp (ptid1) > ptid_get_lwp (ptid2)) | |
627 | return 1; | |
628 | else | |
629 | return 0; | |
630 | } | |
631 | ||
0fe7bf7b | 632 | /* qsort() comparison function for sorting thread_info structs by pid. */ |
c11d79f2 KB |
633 | |
634 | static int | |
635 | gcmp (const void *t1v, const void *t2v) | |
636 | { | |
637 | struct thread_info *t1 = *(struct thread_info **) t1v; | |
638 | struct thread_info *t2 = *(struct thread_info **) t2v; | |
639 | return ptid_cmp (t1->ptid, t2->ptid); | |
640 | } | |
641 | ||
9ad7bec7 JB |
642 | /* Search through the list of all kernel threads for the thread |
643 | that has stopped on a SIGTRAP signal, and return its TID. | |
644 | Return 0 if none found. */ | |
645 | ||
646 | static pthdb_tid_t | |
647 | get_signaled_thread (void) | |
648 | { | |
649 | struct thrdsinfo64 thrinf; | |
eff44fea | 650 | tid_t ktid = 0; |
9ad7bec7 JB |
651 | int result = 0; |
652 | ||
9ad7bec7 JB |
653 | while (1) |
654 | { | |
655 | if (getthrds (PIDGET (inferior_ptid), &thrinf, | |
656 | sizeof (thrinf), &ktid, 1) != 1) | |
657 | break; | |
658 | ||
659 | if (thrinf.ti_cursig == SIGTRAP) | |
660 | return thrinf.ti_tid; | |
661 | } | |
662 | ||
663 | /* Didn't find any thread stopped on a SIGTRAP signal. */ | |
664 | return 0; | |
665 | } | |
666 | ||
c11d79f2 KB |
667 | /* Synchronize GDB's thread list with libpthdebug's. |
668 | ||
669 | There are some benefits of doing this every time the inferior stops: | |
670 | ||
0fe7bf7b MS |
671 | - allows users to run thread-specific commands without needing to |
672 | run "info threads" first | |
c11d79f2 KB |
673 | |
674 | - helps pthdb_tid_pthread() work properly (see "libpthdebug | |
675 | peculiarities" at the top of this module) | |
676 | ||
0fe7bf7b MS |
677 | - simplifies the demands placed on libpthdebug, which seems to |
678 | have difficulty with certain call patterns */ | |
c11d79f2 KB |
679 | |
680 | static void | |
681 | sync_threadlists (void) | |
682 | { | |
683 | int cmd, status, infpid; | |
684 | int pcount, psize, pi, gcount, gi; | |
685 | struct pd_thread *pbuf; | |
686 | struct thread_info **gbuf, **g, *thread; | |
687 | pthdb_pthread_t pdtid; | |
688 | pthread_t pthid; | |
689 | pthdb_tid_t tid; | |
c11d79f2 | 690 | |
0fe7bf7b | 691 | /* Accumulate an array of libpthdebug threads sorted by pthread id. */ |
c11d79f2 KB |
692 | |
693 | pcount = 0; | |
694 | psize = 1; | |
695 | pbuf = (struct pd_thread *) xmalloc (psize * sizeof *pbuf); | |
696 | ||
697 | for (cmd = PTHDB_LIST_FIRST;; cmd = PTHDB_LIST_NEXT) | |
698 | { | |
699 | status = pthdb_pthread (pd_session, &pdtid, cmd); | |
700 | if (status != PTHDB_SUCCESS || pdtid == PTHDB_INVALID_PTHREAD) | |
701 | break; | |
702 | ||
703 | status = pthdb_pthread_ptid (pd_session, pdtid, &pthid); | |
704 | if (status != PTHDB_SUCCESS || pthid == PTHDB_INVALID_PTID) | |
705 | continue; | |
706 | ||
707 | if (pcount == psize) | |
708 | { | |
709 | psize *= 2; | |
0fe7bf7b MS |
710 | pbuf = (struct pd_thread *) xrealloc (pbuf, |
711 | psize * sizeof *pbuf); | |
c11d79f2 KB |
712 | } |
713 | pbuf[pcount].pdtid = pdtid; | |
714 | pbuf[pcount].pthid = pthid; | |
715 | pcount++; | |
716 | } | |
717 | ||
718 | for (pi = 0; pi < pcount; pi++) | |
719 | { | |
720 | status = pthdb_pthread_tid (pd_session, pbuf[pi].pdtid, &tid); | |
721 | if (status != PTHDB_SUCCESS) | |
722 | tid = PTHDB_INVALID_TID; | |
723 | pbuf[pi].tid = tid; | |
724 | } | |
725 | ||
726 | qsort (pbuf, pcount, sizeof *pbuf, pcmp); | |
727 | ||
0fe7bf7b | 728 | /* Accumulate an array of GDB threads sorted by pid. */ |
c11d79f2 KB |
729 | |
730 | gcount = 0; | |
731 | iterate_over_threads (giter_count, &gcount); | |
732 | g = gbuf = (struct thread_info **) xmalloc (gcount * sizeof *gbuf); | |
733 | iterate_over_threads (giter_accum, &g); | |
734 | qsort (gbuf, gcount, sizeof *gbuf, gcmp); | |
735 | ||
0fe7bf7b | 736 | /* Apply differences between the two arrays to GDB's thread list. */ |
c11d79f2 KB |
737 | |
738 | infpid = PIDGET (inferior_ptid); | |
739 | for (pi = gi = 0; pi < pcount || gi < gcount;) | |
740 | { | |
c11d79f2 | 741 | if (pi == pcount) |
c11d79f2 | 742 | { |
42cc437f | 743 | delete_thread (gbuf[gi]->ptid); |
c11d79f2 KB |
744 | gi++; |
745 | } | |
42cc437f | 746 | else if (gi == gcount) |
c11d79f2 | 747 | { |
42cc437f | 748 | thread = add_thread (BUILD_THREAD (pbuf[pi].pthid, infpid)); |
c11d79f2 | 749 | thread->private = xmalloc (sizeof (struct private_thread_info)); |
42cc437f KB |
750 | thread->private->pdtid = pbuf[pi].pdtid; |
751 | thread->private->tid = pbuf[pi].tid; | |
c11d79f2 KB |
752 | pi++; |
753 | } | |
42cc437f KB |
754 | else |
755 | { | |
756 | ptid_t pptid, gptid; | |
757 | int cmp_result; | |
758 | ||
759 | pptid = BUILD_THREAD (pbuf[pi].pthid, infpid); | |
760 | gptid = gbuf[gi]->ptid; | |
761 | pdtid = pbuf[pi].pdtid; | |
762 | tid = pbuf[pi].tid; | |
c11d79f2 | 763 | |
42cc437f KB |
764 | cmp_result = ptid_cmp (pptid, gptid); |
765 | ||
766 | if (cmp_result == 0) | |
767 | { | |
768 | gbuf[gi]->private->pdtid = pdtid; | |
769 | gbuf[gi]->private->tid = tid; | |
770 | pi++; | |
771 | gi++; | |
772 | } | |
773 | else if (cmp_result > 0) | |
774 | { | |
775 | delete_thread (gptid); | |
776 | gi++; | |
777 | } | |
778 | else | |
779 | { | |
780 | thread = add_thread (pptid); | |
781 | thread->private = xmalloc (sizeof (struct private_thread_info)); | |
782 | thread->private->pdtid = pdtid; | |
783 | thread->private->tid = tid; | |
784 | pi++; | |
785 | } | |
786 | } | |
c11d79f2 KB |
787 | } |
788 | ||
789 | xfree (pbuf); | |
790 | xfree (gbuf); | |
791 | } | |
792 | ||
9ad7bec7 JB |
793 | /* Iterate_over_threads() callback for locating a thread, using |
794 | the TID of its associated kernel thread. */ | |
c11d79f2 KB |
795 | |
796 | static int | |
9ad7bec7 | 797 | iter_tid (struct thread_info *thread, void *tidp) |
c11d79f2 | 798 | { |
9ad7bec7 | 799 | const pthdb_tid_t tid = *(pthdb_tid_t *)tidp; |
c11d79f2 | 800 | |
9ad7bec7 | 801 | return (thread->private->tid == tid); |
c11d79f2 KB |
802 | } |
803 | ||
0fe7bf7b MS |
804 | /* Synchronize libpthdebug's state with the inferior and with GDB, |
805 | generate a composite process/thread <pid> for the current thread, | |
806 | set inferior_ptid to <pid> if SET_INFPID, and return <pid>. */ | |
c11d79f2 KB |
807 | |
808 | static ptid_t | |
809 | pd_update (int set_infpid) | |
810 | { | |
811 | int status; | |
812 | ptid_t ptid; | |
9ad7bec7 JB |
813 | pthdb_tid_t tid; |
814 | struct thread_info *thread = NULL; | |
c11d79f2 KB |
815 | |
816 | if (!pd_active) | |
817 | return inferior_ptid; | |
818 | ||
819 | status = pthdb_session_update (pd_session); | |
820 | if (status != PTHDB_SUCCESS) | |
821 | return inferior_ptid; | |
822 | ||
823 | sync_threadlists (); | |
824 | ||
0fe7bf7b | 825 | /* Define "current thread" as one that just received a trap signal. */ |
c11d79f2 | 826 | |
9ad7bec7 JB |
827 | tid = get_signaled_thread (); |
828 | if (tid != 0) | |
829 | thread = iterate_over_threads (iter_tid, &tid); | |
c11d79f2 KB |
830 | if (!thread) |
831 | ptid = inferior_ptid; | |
832 | else | |
833 | { | |
834 | ptid = thread->ptid; | |
835 | if (set_infpid) | |
836 | inferior_ptid = ptid; | |
837 | } | |
838 | return ptid; | |
839 | } | |
840 | ||
0963b4bd | 841 | /* Try to start debugging threads in the current process. |
0fe7bf7b MS |
842 | If successful and SET_INFPID, set inferior_ptid to reflect the |
843 | current thread. */ | |
c11d79f2 KB |
844 | |
845 | static ptid_t | |
846 | pd_activate (int set_infpid) | |
847 | { | |
848 | int status; | |
849 | ||
850 | status = pthdb_session_init (PD_USER, arch64 ? PEM_64BIT : PEM_32BIT, | |
0fe7bf7b MS |
851 | PTHDB_FLAG_REGS, &pd_callbacks, |
852 | &pd_session); | |
c11d79f2 KB |
853 | if (status != PTHDB_SUCCESS) |
854 | { | |
855 | return inferior_ptid; | |
856 | } | |
857 | pd_active = 1; | |
858 | return pd_update (set_infpid); | |
859 | } | |
860 | ||
0fe7bf7b | 861 | /* Undo the effects of pd_activate(). */ |
c11d79f2 KB |
862 | |
863 | static void | |
864 | pd_deactivate (void) | |
865 | { | |
866 | if (!pd_active) | |
867 | return; | |
868 | pthdb_session_destroy (pd_session); | |
869 | ||
870 | pid_to_prc (&inferior_ptid); | |
871 | pd_active = 0; | |
872 | } | |
873 | ||
0fe7bf7b MS |
874 | /* An object file has just been loaded. Check whether the current |
875 | application is pthreaded, and if so, prepare for thread debugging. */ | |
c11d79f2 KB |
876 | |
877 | static void | |
878 | pd_enable (void) | |
879 | { | |
880 | int status; | |
881 | char *stub_name; | |
882 | struct minimal_symbol *ms; | |
883 | ||
0fe7bf7b | 884 | /* Don't initialize twice. */ |
c11d79f2 KB |
885 | if (pd_able) |
886 | return; | |
887 | ||
0fe7bf7b | 888 | /* Check application word size. */ |
f5656ead | 889 | arch64 = register_size (target_gdbarch (), 0) == 8; |
c11d79f2 | 890 | |
0fe7bf7b | 891 | /* Check whether the application is pthreaded. */ |
c11d79f2 | 892 | stub_name = NULL; |
0fe7bf7b MS |
893 | status = pthdb_session_pthreaded (PD_USER, PTHDB_FLAG_REGS, |
894 | &pd_callbacks, &stub_name); | |
f8bf5763 PM |
895 | if ((status != PTHDB_SUCCESS |
896 | && status != PTHDB_NOT_PTHREADED) || !stub_name) | |
c11d79f2 KB |
897 | return; |
898 | ||
0fe7bf7b | 899 | /* Set a breakpoint on the returned stub function. */ |
c11d79f2 KB |
900 | if (!(ms = lookup_minimal_symbol (stub_name, NULL, NULL))) |
901 | return; | |
902 | pd_brk_addr = SYMBOL_VALUE_ADDRESS (ms); | |
f5656ead | 903 | if (!create_thread_event_breakpoint (target_gdbarch (), pd_brk_addr)) |
c11d79f2 KB |
904 | return; |
905 | ||
0fe7bf7b | 906 | /* Prepare for thread debugging. */ |
206d3d3c | 907 | push_target (&aix_thread_ops); |
c11d79f2 KB |
908 | pd_able = 1; |
909 | ||
0fe7bf7b MS |
910 | /* If we're debugging a core file or an attached inferior, the |
911 | pthread library may already have been initialized, so try to | |
912 | activate thread debugging. */ | |
c11d79f2 KB |
913 | pd_activate (1); |
914 | } | |
915 | ||
0fe7bf7b | 916 | /* Undo the effects of pd_enable(). */ |
c11d79f2 KB |
917 | |
918 | static void | |
919 | pd_disable (void) | |
920 | { | |
921 | if (!pd_able) | |
922 | return; | |
923 | if (pd_active) | |
924 | pd_deactivate (); | |
925 | pd_able = 0; | |
206d3d3c | 926 | unpush_target (&aix_thread_ops); |
c11d79f2 KB |
927 | } |
928 | ||
06d3b283 | 929 | /* new_objfile observer callback. |
c11d79f2 | 930 | |
0fe7bf7b MS |
931 | If OBJFILE is non-null, check whether a threaded application is |
932 | being debugged, and if so, prepare for thread debugging. | |
c11d79f2 | 933 | |
0fe7bf7b | 934 | If OBJFILE is null, stop debugging threads. */ |
c11d79f2 KB |
935 | |
936 | static void | |
937 | new_objfile (struct objfile *objfile) | |
938 | { | |
939 | if (objfile) | |
940 | pd_enable (); | |
941 | else | |
942 | pd_disable (); | |
c11d79f2 KB |
943 | } |
944 | ||
0fe7bf7b | 945 | /* Attach to process specified by ARGS. */ |
c11d79f2 KB |
946 | |
947 | static void | |
136d6dae | 948 | aix_thread_attach (struct target_ops *ops, char *args, int from_tty) |
c11d79f2 | 949 | { |
d30acaa7 JB |
950 | struct target_ops *beneath = find_target_beneath (ops); |
951 | ||
952 | beneath->to_attach (beneath, args, from_tty); | |
c11d79f2 KB |
953 | pd_activate (1); |
954 | } | |
955 | ||
206d3d3c | 956 | /* Detach from the process attached to by aix_thread_attach(). */ |
c11d79f2 KB |
957 | |
958 | static void | |
136d6dae | 959 | aix_thread_detach (struct target_ops *ops, char *args, int from_tty) |
c11d79f2 | 960 | { |
d30acaa7 JB |
961 | struct target_ops *beneath = find_target_beneath (ops); |
962 | ||
6c0c456d | 963 | pd_disable (); |
d30acaa7 | 964 | beneath->to_detach (beneath, args, from_tty); |
c11d79f2 KB |
965 | } |
966 | ||
967 | /* Tell the inferior process to continue running thread PID if != -1 | |
0fe7bf7b | 968 | and all threads otherwise. */ |
c11d79f2 KB |
969 | |
970 | static void | |
c7660128 | 971 | aix_thread_resume (struct target_ops *ops, |
2ea28649 | 972 | ptid_t ptid, int step, enum gdb_signal sig) |
c11d79f2 KB |
973 | { |
974 | struct thread_info *thread; | |
975 | pthdb_tid_t tid[2]; | |
976 | ||
977 | if (!PD_TID (ptid)) | |
14fa3751 KB |
978 | { |
979 | struct cleanup *cleanup = save_inferior_ptid (); | |
d30acaa7 JB |
980 | struct target_ops *beneath = find_target_beneath (ops); |
981 | ||
14fa3751 | 982 | inferior_ptid = pid_to_ptid (PIDGET (inferior_ptid)); |
d30acaa7 | 983 | beneath->to_resume (beneath, ptid, step, sig); |
14fa3751 KB |
984 | do_cleanups (cleanup); |
985 | } | |
c11d79f2 KB |
986 | else |
987 | { | |
e09875d4 | 988 | thread = find_thread_ptid (ptid); |
c11d79f2 | 989 | if (!thread) |
edefbb7c | 990 | error (_("aix-thread resume: unknown pthread %ld"), |
0fe7bf7b | 991 | TIDGET (ptid)); |
c11d79f2 KB |
992 | |
993 | tid[0] = thread->private->tid; | |
994 | if (tid[0] == PTHDB_INVALID_TID) | |
edefbb7c | 995 | error (_("aix-thread resume: no tid for pthread %ld"), |
0fe7bf7b | 996 | TIDGET (ptid)); |
c11d79f2 KB |
997 | tid[1] = 0; |
998 | ||
999 | if (arch64) | |
0fe7bf7b | 1000 | ptrace64aix (PTT_CONTINUE, tid[0], 1, |
2ea28649 | 1001 | gdb_signal_to_host (sig), (void *) tid); |
c11d79f2 KB |
1002 | else |
1003 | ptrace32 (PTT_CONTINUE, tid[0], (int *) 1, | |
2ea28649 | 1004 | gdb_signal_to_host (sig), (void *) tid); |
c11d79f2 KB |
1005 | } |
1006 | } | |
1007 | ||
0fe7bf7b MS |
1008 | /* Wait for thread/process ID if != -1 or for any thread otherwise. |
1009 | If an error occurs, return -1, else return the pid of the stopped | |
1010 | thread. */ | |
c11d79f2 KB |
1011 | |
1012 | static ptid_t | |
117de6a9 | 1013 | aix_thread_wait (struct target_ops *ops, |
8914d83b | 1014 | ptid_t ptid, struct target_waitstatus *status, int options) |
c11d79f2 | 1015 | { |
14fa3751 | 1016 | struct cleanup *cleanup = save_inferior_ptid (); |
d30acaa7 | 1017 | struct target_ops *beneath = find_target_beneath (ops); |
14fa3751 | 1018 | |
c11d79f2 | 1019 | pid_to_prc (&ptid); |
14fa3751 KB |
1020 | |
1021 | inferior_ptid = pid_to_ptid (PIDGET (inferior_ptid)); | |
8914d83b | 1022 | ptid = beneath->to_wait (beneath, ptid, status, options); |
14fa3751 KB |
1023 | do_cleanups (cleanup); |
1024 | ||
c11d79f2 KB |
1025 | if (PIDGET (ptid) == -1) |
1026 | return pid_to_ptid (-1); | |
1027 | ||
0fe7bf7b | 1028 | /* Check whether libpthdebug might be ready to be initialized. */ |
515630c5 | 1029 | if (!pd_active && status->kind == TARGET_WAITKIND_STOPPED |
a493e3e2 | 1030 | && status->value.sig == GDB_SIGNAL_TRAP) |
515630c5 UW |
1031 | { |
1032 | struct regcache *regcache = get_thread_regcache (ptid); | |
1033 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
1034 | ||
1035 | if (regcache_read_pc (regcache) | |
1036 | - gdbarch_decr_pc_after_break (gdbarch) == pd_brk_addr) | |
1037 | return pd_activate (0); | |
1038 | } | |
c11d79f2 KB |
1039 | |
1040 | return pd_update (0); | |
1041 | } | |
1042 | ||
0fe7bf7b | 1043 | /* Record that the 64-bit general-purpose registers contain VALS. */ |
c11d79f2 KB |
1044 | |
1045 | static void | |
647478e0 | 1046 | supply_gprs64 (struct regcache *regcache, uint64_t *vals) |
c11d79f2 | 1047 | { |
c7f30c7a | 1048 | struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache)); |
c11d79f2 KB |
1049 | int regno; |
1050 | ||
063715bf | 1051 | for (regno = 0; regno < ppc_num_gprs; regno++) |
647478e0 | 1052 | regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + regno, |
23a6d369 | 1053 | (char *) (vals + regno)); |
c11d79f2 KB |
1054 | } |
1055 | ||
0fe7bf7b | 1056 | /* Record that 32-bit register REGNO contains VAL. */ |
c11d79f2 KB |
1057 | |
1058 | static void | |
647478e0 | 1059 | supply_reg32 (struct regcache *regcache, int regno, uint32_t val) |
c11d79f2 | 1060 | { |
647478e0 | 1061 | regcache_raw_supply (regcache, regno, (char *) &val); |
c11d79f2 KB |
1062 | } |
1063 | ||
0fe7bf7b | 1064 | /* Record that the floating-point registers contain VALS. */ |
c11d79f2 KB |
1065 | |
1066 | static void | |
647478e0 | 1067 | supply_fprs (struct regcache *regcache, double *vals) |
c11d79f2 | 1068 | { |
c7f30c7a UW |
1069 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1070 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
c11d79f2 KB |
1071 | int regno; |
1072 | ||
383f0f5b JB |
1073 | /* This function should never be called on architectures without |
1074 | floating-point registers. */ | |
c7f30c7a | 1075 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1076 | |
786c562f JB |
1077 | for (regno = tdep->ppc_fp0_regnum; |
1078 | regno < tdep->ppc_fp0_regnum + ppc_num_fprs; | |
1079 | regno++) | |
1080 | regcache_raw_supply (regcache, regno, | |
1081 | (char *) (vals + regno - tdep->ppc_fp0_regnum)); | |
c11d79f2 KB |
1082 | } |
1083 | ||
f1a91342 KB |
1084 | /* Predicate to test whether given register number is a "special" register. */ |
1085 | static int | |
9970f04b | 1086 | special_register_p (struct gdbarch *gdbarch, int regno) |
f1a91342 | 1087 | { |
9970f04b | 1088 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1089 | |
9970f04b | 1090 | return regno == gdbarch_pc_regnum (gdbarch) |
f1a91342 KB |
1091 | || regno == tdep->ppc_ps_regnum |
1092 | || regno == tdep->ppc_cr_regnum | |
1093 | || regno == tdep->ppc_lr_regnum | |
1094 | || regno == tdep->ppc_ctr_regnum | |
1095 | || regno == tdep->ppc_xer_regnum | |
383f0f5b | 1096 | || (tdep->ppc_fpscr_regnum >= 0 && regno == tdep->ppc_fpscr_regnum) |
f1a91342 KB |
1097 | || (tdep->ppc_mq_regnum >= 0 && regno == tdep->ppc_mq_regnum); |
1098 | } | |
1099 | ||
1100 | ||
0fe7bf7b MS |
1101 | /* Record that the special registers contain the specified 64-bit and |
1102 | 32-bit values. */ | |
c11d79f2 KB |
1103 | |
1104 | static void | |
647478e0 UW |
1105 | supply_sprs64 (struct regcache *regcache, |
1106 | uint64_t iar, uint64_t msr, uint32_t cr, | |
0e061eef KB |
1107 | uint64_t lr, uint64_t ctr, uint32_t xer, |
1108 | uint32_t fpscr) | |
c11d79f2 | 1109 | { |
c7f30c7a UW |
1110 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1111 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 | 1112 | |
c7f30c7a | 1113 | regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch), |
3e8c568d | 1114 | (char *) &iar); |
647478e0 UW |
1115 | regcache_raw_supply (regcache, tdep->ppc_ps_regnum, (char *) &msr); |
1116 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, (char *) &cr); | |
1117 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, (char *) &lr); | |
1118 | regcache_raw_supply (regcache, tdep->ppc_ctr_regnum, (char *) &ctr); | |
1119 | regcache_raw_supply (regcache, tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1120 | if (tdep->ppc_fpscr_regnum >= 0) |
647478e0 | 1121 | regcache_raw_supply (regcache, tdep->ppc_fpscr_regnum, |
23a6d369 | 1122 | (char *) &fpscr); |
c11d79f2 KB |
1123 | } |
1124 | ||
0fe7bf7b MS |
1125 | /* Record that the special registers contain the specified 32-bit |
1126 | values. */ | |
c11d79f2 KB |
1127 | |
1128 | static void | |
647478e0 UW |
1129 | supply_sprs32 (struct regcache *regcache, |
1130 | uint32_t iar, uint32_t msr, uint32_t cr, | |
0e061eef KB |
1131 | uint32_t lr, uint32_t ctr, uint32_t xer, |
1132 | uint32_t fpscr) | |
c11d79f2 | 1133 | { |
c7f30c7a UW |
1134 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1135 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 | 1136 | |
c7f30c7a | 1137 | regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch), |
3e8c568d | 1138 | (char *) &iar); |
647478e0 UW |
1139 | regcache_raw_supply (regcache, tdep->ppc_ps_regnum, (char *) &msr); |
1140 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, (char *) &cr); | |
1141 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, (char *) &lr); | |
1142 | regcache_raw_supply (regcache, tdep->ppc_ctr_regnum, (char *) &ctr); | |
1143 | regcache_raw_supply (regcache, tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1144 | if (tdep->ppc_fpscr_regnum >= 0) |
647478e0 | 1145 | regcache_raw_supply (regcache, tdep->ppc_fpscr_regnum, |
23a6d369 | 1146 | (char *) &fpscr); |
c11d79f2 KB |
1147 | } |
1148 | ||
1149 | /* Fetch all registers from pthread PDTID, which doesn't have a kernel | |
1150 | thread. | |
1151 | ||
0fe7bf7b MS |
1152 | There's no way to query a single register from a non-kernel |
1153 | pthread, so there's no need for a single-register version of this | |
1154 | function. */ | |
c11d79f2 KB |
1155 | |
1156 | static void | |
647478e0 | 1157 | fetch_regs_user_thread (struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1158 | { |
c7f30c7a UW |
1159 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1160 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
c11d79f2 KB |
1161 | int status, i; |
1162 | pthdb_context_t ctx; | |
1163 | ||
8e2c28d4 | 1164 | if (debug_aix_thread) |
206d3d3c KB |
1165 | fprintf_unfiltered (gdb_stdlog, |
1166 | "fetch_regs_user_thread %lx\n", (long) pdtid); | |
c11d79f2 KB |
1167 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1168 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1169 | error (_("aix-thread: fetch_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1170 | pd_status2str (status)); |
c11d79f2 | 1171 | |
0fe7bf7b | 1172 | /* General-purpose registers. */ |
c11d79f2 KB |
1173 | |
1174 | if (arch64) | |
647478e0 | 1175 | supply_gprs64 (regcache, ctx.gpr); |
c11d79f2 | 1176 | else |
063715bf | 1177 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1178 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, ctx.gpr[i]); |
c11d79f2 | 1179 | |
0fe7bf7b | 1180 | /* Floating-point registers. */ |
c11d79f2 | 1181 | |
c7f30c7a | 1182 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1183 | supply_fprs (regcache, ctx.fpr); |
c11d79f2 | 1184 | |
0fe7bf7b | 1185 | /* Special registers. */ |
c11d79f2 KB |
1186 | |
1187 | if (arch64) | |
647478e0 UW |
1188 | supply_sprs64 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1189 | ctx.xer, ctx.fpscr); | |
c11d79f2 | 1190 | else |
647478e0 UW |
1191 | supply_sprs32 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1192 | ctx.xer, ctx.fpscr); | |
c11d79f2 KB |
1193 | } |
1194 | ||
0fe7bf7b MS |
1195 | /* Fetch register REGNO if != -1 or all registers otherwise from |
1196 | kernel thread TID. | |
c11d79f2 | 1197 | |
0fe7bf7b MS |
1198 | AIX provides a way to query all of a kernel thread's GPRs, FPRs, or |
1199 | SPRs, but there's no way to query individual registers within those | |
1200 | groups. Therefore, if REGNO != -1, this function fetches an entire | |
1201 | group. | |
c11d79f2 | 1202 | |
0fe7bf7b MS |
1203 | Unfortunately, kernel thread register queries often fail with |
1204 | EPERM, indicating that the thread is in kernel space. This breaks | |
1205 | backtraces of threads other than the current one. To make that | |
1206 | breakage obvious without throwing an error to top level (which is | |
1207 | bad e.g. during "info threads" output), zero registers that can't | |
1208 | be retrieved. */ | |
c11d79f2 KB |
1209 | |
1210 | static void | |
647478e0 UW |
1211 | fetch_regs_kernel_thread (struct regcache *regcache, int regno, |
1212 | pthdb_tid_t tid) | |
c11d79f2 | 1213 | { |
c7f30c7a UW |
1214 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1215 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
063715bf JB |
1216 | uint64_t gprs64[ppc_num_gprs]; |
1217 | uint32_t gprs32[ppc_num_gprs]; | |
1218 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
1219 | struct ptxsprs sprs64; |
1220 | struct ptsprs sprs32; | |
1221 | int i; | |
1222 | ||
8e2c28d4 KB |
1223 | if (debug_aix_thread) |
1224 | fprintf_unfiltered (gdb_stdlog, | |
206d3d3c KB |
1225 | "fetch_regs_kernel_thread tid=%lx regno=%d arch64=%d\n", |
1226 | (long) tid, regno, arch64); | |
c11d79f2 | 1227 | |
0fe7bf7b | 1228 | /* General-purpose registers. */ |
daf6dc85 JB |
1229 | if (regno == -1 |
1230 | || (tdep->ppc_gp0_regnum <= regno | |
1231 | && regno < tdep->ppc_gp0_regnum + ppc_num_gprs)) | |
c11d79f2 KB |
1232 | { |
1233 | if (arch64) | |
1234 | { | |
0fe7bf7b MS |
1235 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
1236 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 | 1237 | memset (gprs64, 0, sizeof (gprs64)); |
647478e0 | 1238 | supply_gprs64 (regcache, gprs64); |
c11d79f2 KB |
1239 | } |
1240 | else | |
1241 | { | |
1242 | if (!ptrace32 (PTT_READ_GPRS, tid, gprs32, 0, NULL)) | |
1243 | memset (gprs32, 0, sizeof (gprs32)); | |
063715bf | 1244 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1245 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, gprs32[i]); |
c11d79f2 KB |
1246 | } |
1247 | } | |
1248 | ||
0fe7bf7b | 1249 | /* Floating-point registers. */ |
c11d79f2 | 1250 | |
c7f30c7a | 1251 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1252 | && (regno == -1 |
1253 | || (regno >= tdep->ppc_fp0_regnum | |
1254 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 | 1255 | { |
ed1bd5f5 | 1256 | if (!ptrace32 (PTT_READ_FPRS, tid, (void *) fprs, 0, NULL)) |
c11d79f2 | 1257 | memset (fprs, 0, sizeof (fprs)); |
647478e0 | 1258 | supply_fprs (regcache, fprs); |
c11d79f2 KB |
1259 | } |
1260 | ||
0fe7bf7b | 1261 | /* Special-purpose registers. */ |
c11d79f2 | 1262 | |
9970f04b | 1263 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1264 | { |
1265 | if (arch64) | |
1266 | { | |
0fe7bf7b MS |
1267 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
1268 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 | 1269 | memset (&sprs64, 0, sizeof (sprs64)); |
647478e0 UW |
1270 | supply_sprs64 (regcache, sprs64.pt_iar, sprs64.pt_msr, |
1271 | sprs64.pt_cr, sprs64.pt_lr, sprs64.pt_ctr, | |
1272 | sprs64.pt_xer, sprs64.pt_fpscr); | |
c11d79f2 KB |
1273 | } |
1274 | else | |
1275 | { | |
c7f30c7a | 1276 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1277 | |
c11d79f2 KB |
1278 | if (!ptrace32 (PTT_READ_SPRS, tid, (int *) &sprs32, 0, NULL)) |
1279 | memset (&sprs32, 0, sizeof (sprs32)); | |
647478e0 | 1280 | supply_sprs32 (regcache, sprs32.pt_iar, sprs32.pt_msr, sprs32.pt_cr, |
0e061eef KB |
1281 | sprs32.pt_lr, sprs32.pt_ctr, sprs32.pt_xer, |
1282 | sprs32.pt_fpscr); | |
c11d79f2 | 1283 | |
f1a91342 | 1284 | if (tdep->ppc_mq_regnum >= 0) |
647478e0 | 1285 | regcache_raw_supply (regcache, tdep->ppc_mq_regnum, |
23a6d369 | 1286 | (char *) &sprs32.pt_mq); |
c11d79f2 KB |
1287 | } |
1288 | } | |
1289 | } | |
1290 | ||
1291 | /* Fetch register REGNO if != -1 or all registers otherwise in the | |
0fe7bf7b | 1292 | thread/process specified by inferior_ptid. */ |
c11d79f2 KB |
1293 | |
1294 | static void | |
c7660128 JB |
1295 | aix_thread_fetch_registers (struct target_ops *ops, |
1296 | struct regcache *regcache, int regno) | |
c11d79f2 KB |
1297 | { |
1298 | struct thread_info *thread; | |
1299 | pthdb_tid_t tid; | |
d30acaa7 | 1300 | struct target_ops *beneath = find_target_beneath (ops); |
c11d79f2 KB |
1301 | |
1302 | if (!PD_TID (inferior_ptid)) | |
d30acaa7 | 1303 | beneath->to_fetch_registers (beneath, regcache, regno); |
c11d79f2 KB |
1304 | else |
1305 | { | |
e09875d4 | 1306 | thread = find_thread_ptid (inferior_ptid); |
c11d79f2 KB |
1307 | tid = thread->private->tid; |
1308 | ||
1309 | if (tid == PTHDB_INVALID_TID) | |
56be3814 | 1310 | fetch_regs_user_thread (regcache, thread->private->pdtid); |
c11d79f2 | 1311 | else |
56be3814 | 1312 | fetch_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1313 | } |
1314 | } | |
1315 | ||
61c5da0b KB |
1316 | /* Store the gp registers into an array of uint32_t or uint64_t. */ |
1317 | ||
1318 | static void | |
647478e0 | 1319 | fill_gprs64 (const struct regcache *regcache, uint64_t *vals) |
61c5da0b | 1320 | { |
c7f30c7a | 1321 | struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache)); |
61c5da0b KB |
1322 | int regno; |
1323 | ||
daf6dc85 | 1324 | for (regno = 0; regno < ppc_num_gprs; regno++) |
672c9795 YQ |
1325 | if (REG_VALID == regcache_register_status (regcache, |
1326 | tdep->ppc_gp0_regnum + regno)) | |
647478e0 | 1327 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + regno, |
822c9732 | 1328 | vals + regno); |
61c5da0b KB |
1329 | } |
1330 | ||
1331 | static void | |
647478e0 | 1332 | fill_gprs32 (const struct regcache *regcache, uint32_t *vals) |
61c5da0b | 1333 | { |
c7f30c7a | 1334 | struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache)); |
61c5da0b KB |
1335 | int regno; |
1336 | ||
daf6dc85 | 1337 | for (regno = 0; regno < ppc_num_gprs; regno++) |
672c9795 YQ |
1338 | if (REG_VALID == regcache_register_status (regcache, |
1339 | tdep->ppc_gp0_regnum + regno)) | |
647478e0 | 1340 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + regno, |
822c9732 | 1341 | vals + regno); |
61c5da0b KB |
1342 | } |
1343 | ||
1344 | /* Store the floating point registers into a double array. */ | |
1345 | static void | |
647478e0 | 1346 | fill_fprs (const struct regcache *regcache, double *vals) |
61c5da0b | 1347 | { |
c7f30c7a UW |
1348 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1349 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
61c5da0b KB |
1350 | int regno; |
1351 | ||
383f0f5b JB |
1352 | /* This function should never be called on architectures without |
1353 | floating-point registers. */ | |
c7f30c7a | 1354 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1355 | |
366f009f JB |
1356 | for (regno = tdep->ppc_fp0_regnum; |
1357 | regno < tdep->ppc_fp0_regnum + ppc_num_fprs; | |
1358 | regno++) | |
672c9795 | 1359 | if (REG_VALID == regcache_register_status (regcache, regno)) |
e3ebf1bb JB |
1360 | regcache_raw_collect (regcache, regno, |
1361 | vals + regno - tdep->ppc_fp0_regnum); | |
61c5da0b KB |
1362 | } |
1363 | ||
c11d79f2 | 1364 | /* Store the special registers into the specified 64-bit and 32-bit |
0fe7bf7b | 1365 | locations. */ |
c11d79f2 KB |
1366 | |
1367 | static void | |
647478e0 UW |
1368 | fill_sprs64 (const struct regcache *regcache, |
1369 | uint64_t *iar, uint64_t *msr, uint32_t *cr, | |
0e061eef KB |
1370 | uint64_t *lr, uint64_t *ctr, uint32_t *xer, |
1371 | uint32_t *fpscr) | |
c11d79f2 | 1372 | { |
c7f30c7a UW |
1373 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1374 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 KB |
1375 | |
1376 | /* Verify that the size of the size of the IAR buffer is the | |
1377 | same as the raw size of the PC (in the register cache). If | |
1378 | they're not, then either GDB has been built incorrectly, or | |
1379 | there's some other kind of internal error. To be really safe, | |
1380 | we should check all of the sizes. */ | |
3e8c568d | 1381 | gdb_assert (sizeof (*iar) == register_size |
c7f30c7a | 1382 | (gdbarch, gdbarch_pc_regnum (gdbarch))); |
f1a91342 | 1383 | |
672c9795 YQ |
1384 | if (REG_VALID == regcache_register_status (regcache, |
1385 | gdbarch_pc_regnum (gdbarch))) | |
c7f30c7a | 1386 | regcache_raw_collect (regcache, gdbarch_pc_regnum (gdbarch), iar); |
672c9795 | 1387 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ps_regnum)) |
647478e0 | 1388 | regcache_raw_collect (regcache, tdep->ppc_ps_regnum, msr); |
672c9795 | 1389 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_cr_regnum)) |
647478e0 | 1390 | regcache_raw_collect (regcache, tdep->ppc_cr_regnum, cr); |
672c9795 | 1391 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_lr_regnum)) |
647478e0 | 1392 | regcache_raw_collect (regcache, tdep->ppc_lr_regnum, lr); |
672c9795 | 1393 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ctr_regnum)) |
647478e0 | 1394 | regcache_raw_collect (regcache, tdep->ppc_ctr_regnum, ctr); |
672c9795 | 1395 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_xer_regnum)) |
647478e0 | 1396 | regcache_raw_collect (regcache, tdep->ppc_xer_regnum, xer); |
383f0f5b | 1397 | if (tdep->ppc_fpscr_regnum >= 0 |
672c9795 YQ |
1398 | && REG_VALID == regcache_register_status (regcache, |
1399 | tdep->ppc_fpscr_regnum)) | |
647478e0 | 1400 | regcache_raw_collect (regcache, tdep->ppc_fpscr_regnum, fpscr); |
61c5da0b KB |
1401 | } |
1402 | ||
1403 | static void | |
647478e0 UW |
1404 | fill_sprs32 (const struct regcache *regcache, |
1405 | uint32_t *iar, uint32_t *msr, uint32_t *cr, | |
0d16ee5d UW |
1406 | uint32_t *lr, uint32_t *ctr, uint32_t *xer, |
1407 | uint32_t *fpscr) | |
61c5da0b | 1408 | { |
c7f30c7a UW |
1409 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1410 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 KB |
1411 | |
1412 | /* Verify that the size of the size of the IAR buffer is the | |
1413 | same as the raw size of the PC (in the register cache). If | |
1414 | they're not, then either GDB has been built incorrectly, or | |
1415 | there's some other kind of internal error. To be really safe, | |
0d16ee5d | 1416 | we should check all of the sizes. */ |
c7f30c7a UW |
1417 | gdb_assert (sizeof (*iar) == register_size (gdbarch, |
1418 | gdbarch_pc_regnum (gdbarch))); | |
f1a91342 | 1419 | |
672c9795 YQ |
1420 | if (REG_VALID == regcache_register_status (regcache, |
1421 | gdbarch_pc_regnum (gdbarch))) | |
c7f30c7a | 1422 | regcache_raw_collect (regcache, gdbarch_pc_regnum (gdbarch), iar); |
672c9795 | 1423 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ps_regnum)) |
647478e0 | 1424 | regcache_raw_collect (regcache, tdep->ppc_ps_regnum, msr); |
672c9795 | 1425 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_cr_regnum)) |
647478e0 | 1426 | regcache_raw_collect (regcache, tdep->ppc_cr_regnum, cr); |
672c9795 | 1427 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_lr_regnum)) |
647478e0 | 1428 | regcache_raw_collect (regcache, tdep->ppc_lr_regnum, lr); |
672c9795 | 1429 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ctr_regnum)) |
647478e0 | 1430 | regcache_raw_collect (regcache, tdep->ppc_ctr_regnum, ctr); |
672c9795 | 1431 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_xer_regnum)) |
647478e0 | 1432 | regcache_raw_collect (regcache, tdep->ppc_xer_regnum, xer); |
383f0f5b | 1433 | if (tdep->ppc_fpscr_regnum >= 0 |
672c9795 | 1434 | && REG_VALID == regcache_register_status (regcache, tdep->ppc_fpscr_regnum)) |
647478e0 | 1435 | regcache_raw_collect (regcache, tdep->ppc_fpscr_regnum, fpscr); |
c11d79f2 KB |
1436 | } |
1437 | ||
1438 | /* Store all registers into pthread PDTID, which doesn't have a kernel | |
1439 | thread. | |
1440 | ||
0fe7bf7b MS |
1441 | It's possible to store a single register into a non-kernel pthread, |
1442 | but I doubt it's worth the effort. */ | |
c11d79f2 KB |
1443 | |
1444 | static void | |
647478e0 | 1445 | store_regs_user_thread (const struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1446 | { |
c7f30c7a UW |
1447 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1448 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
c11d79f2 KB |
1449 | int status, i; |
1450 | pthdb_context_t ctx; | |
61c5da0b KB |
1451 | uint32_t int32; |
1452 | uint64_t int64; | |
1453 | double dbl; | |
c11d79f2 | 1454 | |
8e2c28d4 | 1455 | if (debug_aix_thread) |
0fe7bf7b | 1456 | fprintf_unfiltered (gdb_stdlog, |
206d3d3c | 1457 | "store_regs_user_thread %lx\n", (long) pdtid); |
c11d79f2 | 1458 | |
0fe7bf7b MS |
1459 | /* Retrieve the thread's current context for its non-register |
1460 | values. */ | |
c11d79f2 KB |
1461 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1462 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1463 | error (_("aix-thread: store_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1464 | pd_status2str (status)); |
c11d79f2 | 1465 | |
61c5da0b | 1466 | /* Collect general-purpose register values from the regcache. */ |
c11d79f2 | 1467 | |
063715bf | 1468 | for (i = 0; i < ppc_num_gprs; i++) |
672c9795 YQ |
1469 | if (REG_VALID == regcache_register_status (regcache, |
1470 | tdep->ppc_gp0_regnum + i)) | |
cbe92db4 KB |
1471 | { |
1472 | if (arch64) | |
1473 | { | |
647478e0 | 1474 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + i, |
822c9732 | 1475 | (void *) &int64); |
cbe92db4 KB |
1476 | ctx.gpr[i] = int64; |
1477 | } | |
1478 | else | |
1479 | { | |
647478e0 | 1480 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + i, |
822c9732 | 1481 | (void *) &int32); |
cbe92db4 KB |
1482 | ctx.gpr[i] = int32; |
1483 | } | |
1484 | } | |
c11d79f2 | 1485 | |
61c5da0b | 1486 | /* Collect floating-point register values from the regcache. */ |
c7f30c7a | 1487 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1488 | fill_fprs (regcache, ctx.fpr); |
c11d79f2 | 1489 | |
61c5da0b KB |
1490 | /* Special registers (always kept in ctx as 64 bits). */ |
1491 | if (arch64) | |
1492 | { | |
647478e0 UW |
1493 | fill_sprs64 (regcache, &ctx.iar, &ctx.msr, &ctx.cr, &ctx.lr, &ctx.ctr, |
1494 | &ctx.xer, &ctx.fpscr); | |
61c5da0b KB |
1495 | } |
1496 | else | |
1497 | { | |
1498 | /* Problem: ctx.iar etc. are 64 bits, but raw_registers are 32. | |
0d16ee5d UW |
1499 | Solution: use 32-bit temp variables. */ |
1500 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1501 | tmp_fpscr; | |
61c5da0b | 1502 | |
647478e0 UW |
1503 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, &tmp_ctr, |
1504 | &tmp_xer, &tmp_fpscr); | |
672c9795 YQ |
1505 | if (REG_VALID == regcache_register_status (regcache, |
1506 | gdbarch_pc_regnum (gdbarch))) | |
cbe92db4 | 1507 | ctx.iar = tmp_iar; |
672c9795 | 1508 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ps_regnum)) |
cbe92db4 | 1509 | ctx.msr = tmp_msr; |
672c9795 | 1510 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_cr_regnum)) |
cbe92db4 | 1511 | ctx.cr = tmp_cr; |
672c9795 | 1512 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_lr_regnum)) |
cbe92db4 | 1513 | ctx.lr = tmp_lr; |
672c9795 YQ |
1514 | if (REG_VALID == regcache_register_status (regcache, |
1515 | tdep->ppc_ctr_regnum)) | |
cbe92db4 | 1516 | ctx.ctr = tmp_ctr; |
672c9795 YQ |
1517 | if (REG_VALID == regcache_register_status (regcache, |
1518 | tdep->ppc_xer_regnum)) | |
cbe92db4 | 1519 | ctx.xer = tmp_xer; |
672c9795 YQ |
1520 | if (REG_VALID == regcache_register_status (regcache, |
1521 | tdep->ppc_xer_regnum)) | |
0e061eef | 1522 | ctx.fpscr = tmp_fpscr; |
61c5da0b | 1523 | } |
c11d79f2 KB |
1524 | |
1525 | status = pthdb_pthread_setcontext (pd_session, pdtid, &ctx); | |
1526 | if (status != PTHDB_SUCCESS) | |
0963b4bd MS |
1527 | error (_("aix-thread: store_registers: " |
1528 | "pthdb_pthread_setcontext returned %s"), | |
14fa3751 | 1529 | pd_status2str (status)); |
c11d79f2 KB |
1530 | } |
1531 | ||
0fe7bf7b MS |
1532 | /* Store register REGNO if != -1 or all registers otherwise into |
1533 | kernel thread TID. | |
c11d79f2 | 1534 | |
0fe7bf7b MS |
1535 | AIX provides a way to set all of a kernel thread's GPRs, FPRs, or |
1536 | SPRs, but there's no way to set individual registers within those | |
1537 | groups. Therefore, if REGNO != -1, this function stores an entire | |
1538 | group. */ | |
c11d79f2 KB |
1539 | |
1540 | static void | |
647478e0 UW |
1541 | store_regs_kernel_thread (const struct regcache *regcache, int regno, |
1542 | pthdb_tid_t tid) | |
c11d79f2 | 1543 | { |
c7f30c7a UW |
1544 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1545 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
063715bf JB |
1546 | uint64_t gprs64[ppc_num_gprs]; |
1547 | uint32_t gprs32[ppc_num_gprs]; | |
1548 | double fprs[ppc_num_fprs]; | |
c11d79f2 | 1549 | struct ptxsprs sprs64; |
61c5da0b KB |
1550 | struct ptsprs sprs32; |
1551 | int i; | |
c11d79f2 | 1552 | |
8e2c28d4 | 1553 | if (debug_aix_thread) |
206d3d3c KB |
1554 | fprintf_unfiltered (gdb_stdlog, |
1555 | "store_regs_kernel_thread tid=%lx regno=%d\n", | |
1556 | (long) tid, regno); | |
c11d79f2 | 1557 | |
0fe7bf7b | 1558 | /* General-purpose registers. */ |
daf6dc85 JB |
1559 | if (regno == -1 |
1560 | || (tdep->ppc_gp0_regnum <= regno | |
1561 | && regno < tdep->ppc_gp0_regnum + ppc_num_fprs)) | |
c11d79f2 | 1562 | { |
c11d79f2 | 1563 | if (arch64) |
61c5da0b | 1564 | { |
cbe92db4 KB |
1565 | /* Pre-fetch: some regs may not be in the cache. */ |
1566 | ptrace64aix (PTT_READ_GPRS, tid, (unsigned long) gprs64, 0, NULL); | |
647478e0 | 1567 | fill_gprs64 (regcache, gprs64); |
61c5da0b KB |
1568 | ptrace64aix (PTT_WRITE_GPRS, tid, (unsigned long) gprs64, 0, NULL); |
1569 | } | |
c11d79f2 | 1570 | else |
61c5da0b | 1571 | { |
cbe92db4 KB |
1572 | /* Pre-fetch: some regs may not be in the cache. */ |
1573 | ptrace32 (PTT_READ_GPRS, tid, gprs32, 0, NULL); | |
647478e0 | 1574 | fill_gprs32 (regcache, gprs32); |
61c5da0b KB |
1575 | ptrace32 (PTT_WRITE_GPRS, tid, gprs32, 0, NULL); |
1576 | } | |
c11d79f2 KB |
1577 | } |
1578 | ||
0fe7bf7b | 1579 | /* Floating-point registers. */ |
c11d79f2 | 1580 | |
c7f30c7a | 1581 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1582 | && (regno == -1 |
1583 | || (regno >= tdep->ppc_fp0_regnum | |
1584 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 | 1585 | { |
cbe92db4 | 1586 | /* Pre-fetch: some regs may not be in the cache. */ |
ed1bd5f5 | 1587 | ptrace32 (PTT_READ_FPRS, tid, (void *) fprs, 0, NULL); |
647478e0 | 1588 | fill_fprs (regcache, fprs); |
ed1bd5f5 | 1589 | ptrace32 (PTT_WRITE_FPRS, tid, (void *) fprs, 0, NULL); |
c11d79f2 KB |
1590 | } |
1591 | ||
0fe7bf7b | 1592 | /* Special-purpose registers. */ |
c11d79f2 | 1593 | |
9970f04b | 1594 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1595 | { |
1596 | if (arch64) | |
1597 | { | |
cbe92db4 | 1598 | /* Pre-fetch: some registers won't be in the cache. */ |
0fe7bf7b MS |
1599 | ptrace64aix (PTT_READ_SPRS, tid, |
1600 | (unsigned long) &sprs64, 0, NULL); | |
647478e0 UW |
1601 | fill_sprs64 (regcache, &sprs64.pt_iar, &sprs64.pt_msr, |
1602 | &sprs64.pt_cr, &sprs64.pt_lr, &sprs64.pt_ctr, | |
1603 | &sprs64.pt_xer, &sprs64.pt_fpscr); | |
0fe7bf7b MS |
1604 | ptrace64aix (PTT_WRITE_SPRS, tid, |
1605 | (unsigned long) &sprs64, 0, NULL); | |
c11d79f2 KB |
1606 | } |
1607 | else | |
1608 | { | |
0d16ee5d UW |
1609 | /* The contents of "struct ptspr" were declared as "unsigned |
1610 | long" up to AIX 5.2, but are "unsigned int" since 5.3. | |
1611 | Use temporaries to work around this problem. Also, add an | |
1612 | assert here to make sure we fail if the system header files | |
1613 | use "unsigned long", and the size of that type is not what | |
1614 | the headers expect. */ | |
1615 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1616 | tmp_fpscr; | |
1617 | ||
1618 | gdb_assert (sizeof (sprs32.pt_iar) == 4); | |
1619 | ||
cbe92db4 | 1620 | /* Pre-fetch: some registers won't be in the cache. */ |
c11d79f2 KB |
1621 | ptrace32 (PTT_READ_SPRS, tid, (int *) &sprs32, 0, NULL); |
1622 | ||
647478e0 UW |
1623 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, |
1624 | &tmp_ctr, &tmp_xer, &tmp_fpscr); | |
0d16ee5d UW |
1625 | |
1626 | sprs32.pt_iar = tmp_iar; | |
1627 | sprs32.pt_msr = tmp_msr; | |
1628 | sprs32.pt_cr = tmp_cr; | |
1629 | sprs32.pt_lr = tmp_lr; | |
1630 | sprs32.pt_ctr = tmp_ctr; | |
1631 | sprs32.pt_xer = tmp_xer; | |
1632 | sprs32.pt_fpscr = tmp_fpscr; | |
c11d79f2 | 1633 | |
f1a91342 | 1634 | if (tdep->ppc_mq_regnum >= 0) |
672c9795 YQ |
1635 | if (REG_VALID == regcache_register_status (regcache, |
1636 | tdep->ppc_mq_regnum)) | |
647478e0 | 1637 | regcache_raw_collect (regcache, tdep->ppc_mq_regnum, |
822c9732 | 1638 | &sprs32.pt_mq); |
c11d79f2 KB |
1639 | |
1640 | ptrace32 (PTT_WRITE_SPRS, tid, (int *) &sprs32, 0, NULL); | |
1641 | } | |
1642 | } | |
1643 | } | |
1644 | ||
0fe7bf7b MS |
1645 | /* Store gdb's current view of the register set into the |
1646 | thread/process specified by inferior_ptid. */ | |
c11d79f2 KB |
1647 | |
1648 | static void | |
c7660128 JB |
1649 | aix_thread_store_registers (struct target_ops *ops, |
1650 | struct regcache *regcache, int regno) | |
c11d79f2 KB |
1651 | { |
1652 | struct thread_info *thread; | |
1653 | pthdb_tid_t tid; | |
d30acaa7 | 1654 | struct target_ops *beneath = find_target_beneath (ops); |
c11d79f2 KB |
1655 | |
1656 | if (!PD_TID (inferior_ptid)) | |
d30acaa7 | 1657 | beneath->to_store_registers (beneath, regcache, regno); |
c11d79f2 KB |
1658 | else |
1659 | { | |
e09875d4 | 1660 | thread = find_thread_ptid (inferior_ptid); |
c11d79f2 KB |
1661 | tid = thread->private->tid; |
1662 | ||
1663 | if (tid == PTHDB_INVALID_TID) | |
56be3814 | 1664 | store_regs_user_thread (regcache, thread->private->pdtid); |
c11d79f2 | 1665 | else |
56be3814 | 1666 | store_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1667 | } |
1668 | } | |
1669 | ||
037a727e UW |
1670 | /* Attempt a transfer all LEN bytes starting at OFFSET between the |
1671 | inferior's OBJECT:ANNEX space and GDB's READBUF/WRITEBUF buffer. | |
1672 | Return the number of bytes actually transferred. */ | |
1673 | ||
1674 | static LONGEST | |
1675 | aix_thread_xfer_partial (struct target_ops *ops, enum target_object object, | |
1676 | const char *annex, gdb_byte *readbuf, | |
0963b4bd MS |
1677 | const gdb_byte *writebuf, |
1678 | ULONGEST offset, LONGEST len) | |
c11d79f2 | 1679 | { |
037a727e UW |
1680 | struct cleanup *old_chain = save_inferior_ptid (); |
1681 | LONGEST xfer; | |
d30acaa7 | 1682 | struct target_ops *beneath = find_target_beneath (ops); |
14fa3751 KB |
1683 | |
1684 | inferior_ptid = pid_to_ptid (PIDGET (inferior_ptid)); | |
d30acaa7 JB |
1685 | xfer = beneath->to_xfer_partial (beneath, object, annex, |
1686 | readbuf, writebuf, offset, len); | |
c11d79f2 | 1687 | |
037a727e UW |
1688 | do_cleanups (old_chain); |
1689 | return xfer; | |
c11d79f2 KB |
1690 | } |
1691 | ||
0fe7bf7b | 1692 | /* Clean up after the inferior exits. */ |
c11d79f2 KB |
1693 | |
1694 | static void | |
136d6dae | 1695 | aix_thread_mourn_inferior (struct target_ops *ops) |
c11d79f2 | 1696 | { |
d30acaa7 JB |
1697 | struct target_ops *beneath = find_target_beneath (ops); |
1698 | ||
c11d79f2 | 1699 | pd_deactivate (); |
d30acaa7 | 1700 | beneath->to_mourn_inferior (beneath); |
c11d79f2 KB |
1701 | } |
1702 | ||
0fe7bf7b | 1703 | /* Return whether thread PID is still valid. */ |
c11d79f2 KB |
1704 | |
1705 | static int | |
c7660128 | 1706 | aix_thread_thread_alive (struct target_ops *ops, ptid_t ptid) |
c11d79f2 | 1707 | { |
7fc0c7b5 | 1708 | struct target_ops *beneath = find_target_beneath (ops); |
d30acaa7 | 1709 | |
c11d79f2 | 1710 | if (!PD_TID (ptid)) |
d30acaa7 | 1711 | return beneath->to_thread_alive (beneath, ptid); |
c11d79f2 | 1712 | |
0fe7bf7b MS |
1713 | /* We update the thread list every time the child stops, so all |
1714 | valid threads should be in the thread list. */ | |
c11d79f2 KB |
1715 | return in_thread_list (ptid); |
1716 | } | |
1717 | ||
0fe7bf7b MS |
1718 | /* Return a printable representation of composite PID for use in |
1719 | "info threads" output. */ | |
c11d79f2 KB |
1720 | |
1721 | static char * | |
117de6a9 | 1722 | aix_thread_pid_to_str (struct target_ops *ops, ptid_t ptid) |
c11d79f2 KB |
1723 | { |
1724 | static char *ret = NULL; | |
7fc0c7b5 | 1725 | struct target_ops *beneath = find_target_beneath (ops); |
c11d79f2 KB |
1726 | |
1727 | if (!PD_TID (ptid)) | |
d30acaa7 | 1728 | return beneath->to_pid_to_str (beneath, ptid); |
c11d79f2 KB |
1729 | |
1730 | /* Free previous return value; a new one will be allocated by | |
b435e160 | 1731 | xstrprintf(). */ |
c11d79f2 KB |
1732 | xfree (ret); |
1733 | ||
edefbb7c | 1734 | ret = xstrprintf (_("Thread %ld"), ptid_get_tid (ptid)); |
c11d79f2 KB |
1735 | return ret; |
1736 | } | |
1737 | ||
0fe7bf7b MS |
1738 | /* Return a printable representation of extra information about |
1739 | THREAD, for use in "info threads" output. */ | |
c11d79f2 KB |
1740 | |
1741 | static char * | |
206d3d3c | 1742 | aix_thread_extra_thread_info (struct thread_info *thread) |
c11d79f2 KB |
1743 | { |
1744 | struct ui_file *buf; | |
1745 | int status; | |
1746 | pthdb_pthread_t pdtid; | |
1747 | pthdb_tid_t tid; | |
1748 | pthdb_state_t state; | |
1749 | pthdb_suspendstate_t suspendstate; | |
1750 | pthdb_detachstate_t detachstate; | |
1751 | int cancelpend; | |
c11d79f2 KB |
1752 | static char *ret = NULL; |
1753 | ||
1754 | if (!PD_TID (thread->ptid)) | |
1755 | return NULL; | |
1756 | ||
1757 | buf = mem_fileopen (); | |
1758 | ||
1759 | pdtid = thread->private->pdtid; | |
1760 | tid = thread->private->tid; | |
1761 | ||
1762 | if (tid != PTHDB_INVALID_TID) | |
edefbb7c | 1763 | /* i18n: Like "thread-identifier %d, [state] running, suspended" */ |
0d16ee5d | 1764 | fprintf_unfiltered (buf, _("tid %d"), (int)tid); |
c11d79f2 KB |
1765 | |
1766 | status = pthdb_pthread_state (pd_session, pdtid, &state); | |
1767 | if (status != PTHDB_SUCCESS) | |
1768 | state = PST_NOTSUP; | |
1769 | fprintf_unfiltered (buf, ", %s", state2str (state)); | |
1770 | ||
0fe7bf7b MS |
1771 | status = pthdb_pthread_suspendstate (pd_session, pdtid, |
1772 | &suspendstate); | |
c11d79f2 | 1773 | if (status == PTHDB_SUCCESS && suspendstate == PSS_SUSPENDED) |
edefbb7c AC |
1774 | /* i18n: Like "Thread-Id %d, [state] running, suspended" */ |
1775 | fprintf_unfiltered (buf, _(", suspended")); | |
c11d79f2 | 1776 | |
0fe7bf7b MS |
1777 | status = pthdb_pthread_detachstate (pd_session, pdtid, |
1778 | &detachstate); | |
c11d79f2 | 1779 | if (status == PTHDB_SUCCESS && detachstate == PDS_DETACHED) |
edefbb7c AC |
1780 | /* i18n: Like "Thread-Id %d, [state] running, detached" */ |
1781 | fprintf_unfiltered (buf, _(", detached")); | |
c11d79f2 KB |
1782 | |
1783 | pthdb_pthread_cancelpend (pd_session, pdtid, &cancelpend); | |
1784 | if (status == PTHDB_SUCCESS && cancelpend) | |
edefbb7c AC |
1785 | /* i18n: Like "Thread-Id %d, [state] running, cancel pending" */ |
1786 | fprintf_unfiltered (buf, _(", cancel pending")); | |
c11d79f2 KB |
1787 | |
1788 | ui_file_write (buf, "", 1); | |
1789 | ||
1790 | xfree (ret); /* Free old buffer. */ | |
1791 | ||
759ef836 | 1792 | ret = ui_file_xstrdup (buf, NULL); |
c11d79f2 KB |
1793 | ui_file_delete (buf); |
1794 | ||
1795 | return ret; | |
1796 | } | |
1797 | ||
c7660128 JB |
1798 | static ptid_t |
1799 | aix_thread_get_ada_task_ptid (long lwp, long thread) | |
1800 | { | |
1801 | return ptid_build (ptid_get_pid (inferior_ptid), 0, thread); | |
1802 | } | |
1803 | ||
206d3d3c | 1804 | /* Initialize target aix_thread_ops. */ |
c11d79f2 KB |
1805 | |
1806 | static void | |
206d3d3c | 1807 | init_aix_thread_ops (void) |
c11d79f2 | 1808 | { |
783425fc PA |
1809 | aix_thread_ops.to_shortname = "aix-threads"; |
1810 | aix_thread_ops.to_longname = _("AIX pthread support"); | |
1811 | aix_thread_ops.to_doc = _("AIX pthread support"); | |
1812 | ||
1813 | aix_thread_ops.to_attach = aix_thread_attach; | |
1814 | aix_thread_ops.to_detach = aix_thread_detach; | |
1815 | aix_thread_ops.to_resume = aix_thread_resume; | |
1816 | aix_thread_ops.to_wait = aix_thread_wait; | |
1817 | aix_thread_ops.to_fetch_registers = aix_thread_fetch_registers; | |
1818 | aix_thread_ops.to_store_registers = aix_thread_store_registers; | |
1819 | aix_thread_ops.to_xfer_partial = aix_thread_xfer_partial; | |
206d3d3c | 1820 | /* No need for aix_thread_ops.to_create_inferior, because we activate thread |
0fe7bf7b | 1821 | debugging when the inferior reaches pd_brk_addr. */ |
783425fc PA |
1822 | aix_thread_ops.to_mourn_inferior = aix_thread_mourn_inferior; |
1823 | aix_thread_ops.to_thread_alive = aix_thread_thread_alive; | |
1824 | aix_thread_ops.to_pid_to_str = aix_thread_pid_to_str; | |
1825 | aix_thread_ops.to_extra_thread_info = aix_thread_extra_thread_info; | |
1826 | aix_thread_ops.to_get_ada_task_ptid = aix_thread_get_ada_task_ptid; | |
1827 | aix_thread_ops.to_stratum = thread_stratum; | |
1828 | aix_thread_ops.to_magic = OPS_MAGIC; | |
c11d79f2 KB |
1829 | } |
1830 | ||
1831 | /* Module startup initialization function, automagically called by | |
0fe7bf7b | 1832 | init.c. */ |
c11d79f2 | 1833 | |
e1aca11e JB |
1834 | void _initialize_aix_thread (void); |
1835 | ||
c11d79f2 KB |
1836 | void |
1837 | _initialize_aix_thread (void) | |
1838 | { | |
206d3d3c KB |
1839 | init_aix_thread_ops (); |
1840 | add_target (&aix_thread_ops); | |
c11d79f2 | 1841 | |
0fe7bf7b | 1842 | /* Notice when object files get loaded and unloaded. */ |
06d3b283 | 1843 | observer_attach_new_objfile (new_objfile); |
8e2c28d4 | 1844 | |
577b7047 | 1845 | add_setshow_boolean_cmd ("aix-thread", class_maintenance, &debug_aix_thread, |
0963b4bd MS |
1846 | _("Set debugging of AIX thread module."), |
1847 | _("Show debugging of AIX thread module."), | |
1848 | _("Enables debugging output (used to debug GDB)."), | |
1849 | NULL, NULL, | |
1850 | /* FIXME: i18n: Debugging of AIX thread | |
1851 | module is \"%d\". */ | |
1852 | &setdebuglist, &showdebuglist); | |
c11d79f2 | 1853 | } |