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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 | ||
fecf803e UW |
240 | /* Call ptracex (REQ, ID, ADDR, DATA, BUF) or |
241 | ptrace64 (REQ, ID, ADDR, DATA, BUF) if HAVE_PTRACE64. | |
242 | Return success. */ | |
243 | ||
244 | #ifdef HAVE_PTRACE64 | |
245 | # define ptracex(request, pid, addr, data, buf) \ | |
246 | ptrace64 (request, pid, addr, data, buf) | |
247 | #endif | |
c11d79f2 KB |
248 | |
249 | static int | |
250 | ptrace64aix (int req, int id, long long addr, int data, int *buf) | |
251 | { | |
252 | errno = 0; | |
253 | return ptrace_check (req, id, ptracex (req, id, addr, data, buf)); | |
254 | } | |
255 | ||
fecf803e UW |
256 | /* Call ptrace (REQ, ID, ADDR, DATA, BUF) or |
257 | ptrace64 (REQ, ID, ADDR, DATA, BUF) if HAVE_PTRACE64. | |
258 | Return success. */ | |
259 | ||
260 | #ifdef HAVE_PTRACE64 | |
261 | # define ptrace(request, pid, addr, data, buf) \ | |
262 | ptrace64 (request, pid, addr, data, buf) | |
263 | # define addr_ptr long long | |
264 | #else | |
265 | # define addr_ptr int * | |
266 | #endif | |
c11d79f2 KB |
267 | |
268 | static int | |
fecf803e | 269 | ptrace32 (int req, int id, addr_ptr addr, int data, int *buf) |
c11d79f2 KB |
270 | { |
271 | errno = 0; | |
0fe7bf7b | 272 | return ptrace_check (req, id, |
fecf803e | 273 | ptrace (req, id, (addr_ptr) addr, data, buf)); |
c11d79f2 KB |
274 | } |
275 | ||
0fe7bf7b MS |
276 | /* If *PIDP is a composite process/thread id, convert it to a |
277 | process id. */ | |
c11d79f2 KB |
278 | |
279 | static void | |
280 | pid_to_prc (ptid_t *ptidp) | |
281 | { | |
282 | ptid_t ptid; | |
283 | ||
284 | ptid = *ptidp; | |
285 | if (PD_TID (ptid)) | |
286 | *ptidp = pid_to_ptid (PIDGET (ptid)); | |
287 | } | |
288 | ||
0fe7bf7b MS |
289 | /* pthdb callback: for <i> from 0 to COUNT, set SYMBOLS[<i>].addr to |
290 | the address of SYMBOLS[<i>].name. */ | |
c11d79f2 KB |
291 | |
292 | static int | |
293 | pdc_symbol_addrs (pthdb_user_t user, pthdb_symbol_t *symbols, int count) | |
294 | { | |
295 | struct minimal_symbol *ms; | |
296 | int i; | |
297 | char *name; | |
298 | ||
8e2c28d4 KB |
299 | if (debug_aix_thread) |
300 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 301 | "pdc_symbol_addrs (user = %ld, symbols = 0x%lx, count = %d)\n", |
8e2c28d4 | 302 | user, (long) symbols, count); |
c11d79f2 KB |
303 | |
304 | for (i = 0; i < count; i++) | |
305 | { | |
306 | name = symbols[i].name; | |
8e2c28d4 | 307 | if (debug_aix_thread) |
0fe7bf7b | 308 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 309 | " symbols[%d].name = \"%s\"\n", i, name); |
c11d79f2 KB |
310 | |
311 | if (!*name) | |
312 | symbols[i].addr = 0; | |
313 | else | |
314 | { | |
315 | if (!(ms = lookup_minimal_symbol (name, NULL, NULL))) | |
316 | { | |
8e2c28d4 | 317 | if (debug_aix_thread) |
27bae383 | 318 | fprintf_unfiltered (gdb_stdlog, " returning PDC_FAILURE\n"); |
c11d79f2 KB |
319 | return PDC_FAILURE; |
320 | } | |
321 | symbols[i].addr = SYMBOL_VALUE_ADDRESS (ms); | |
322 | } | |
8e2c28d4 | 323 | if (debug_aix_thread) |
27bae383 | 324 | fprintf_unfiltered (gdb_stdlog, " symbols[%d].addr = %s\n", |
bb599908 | 325 | i, hex_string (symbols[i].addr)); |
c11d79f2 | 326 | } |
8e2c28d4 | 327 | if (debug_aix_thread) |
27bae383 | 328 | fprintf_unfiltered (gdb_stdlog, " returning PDC_SUCCESS\n"); |
c11d79f2 KB |
329 | return PDC_SUCCESS; |
330 | } | |
331 | ||
0fe7bf7b MS |
332 | /* Read registers call back function should be able to read the |
333 | context information of a debuggee kernel thread from an active | |
334 | process or from a core file. The information should be formatted | |
335 | in context64 form for both 32-bit and 64-bit process. | |
336 | If successful return 0, else non-zero is returned. */ | |
337 | ||
c11d79f2 KB |
338 | static int |
339 | pdc_read_regs (pthdb_user_t user, | |
340 | pthdb_tid_t tid, | |
341 | unsigned long long flags, | |
342 | pthdb_context_t *context) | |
343 | { | |
0fe7bf7b MS |
344 | /* This function doesn't appear to be used, so we could probably |
345 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
346 | complain and several thread debug functions will fail. In case | |
347 | this is needed, I have implemented what I think it should do, | |
348 | however this code is untested. */ | |
349 | ||
063715bf JB |
350 | uint64_t gprs64[ppc_num_gprs]; |
351 | uint32_t gprs32[ppc_num_gprs]; | |
352 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
353 | struct ptxsprs sprs64; |
354 | struct ptsprs sprs32; | |
355 | ||
8e2c28d4 | 356 | if (debug_aix_thread) |
27bae383 | 357 | fprintf_unfiltered (gdb_stdlog, "pdc_read_regs tid=%d flags=%s\n", |
bb599908 | 358 | (int) tid, hex_string (flags)); |
c11d79f2 | 359 | |
0fe7bf7b | 360 | /* General-purpose registers. */ |
c11d79f2 KB |
361 | if (flags & PTHDB_FLAG_GPRS) |
362 | { | |
363 | if (arch64) | |
364 | { | |
0fe7bf7b MS |
365 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
366 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 KB |
367 | memset (gprs64, 0, sizeof (gprs64)); |
368 | memcpy (context->gpr, gprs64, sizeof(gprs64)); | |
369 | } | |
370 | else | |
371 | { | |
372 | if (!ptrace32 (PTT_READ_GPRS, tid, gprs32, 0, NULL)) | |
373 | memset (gprs32, 0, sizeof (gprs32)); | |
374 | memcpy (context->gpr, gprs32, sizeof(gprs32)); | |
375 | } | |
376 | } | |
377 | ||
0fe7bf7b | 378 | /* Floating-point registers. */ |
c11d79f2 KB |
379 | if (flags & PTHDB_FLAG_FPRS) |
380 | { | |
fecf803e | 381 | if (!ptrace32 (PTT_READ_FPRS, tid, (addr_ptr) fprs, 0, NULL)) |
c11d79f2 | 382 | memset (fprs, 0, sizeof (fprs)); |
46bba1ef | 383 | memcpy (context->fpr, fprs, sizeof(fprs)); |
c11d79f2 KB |
384 | } |
385 | ||
0fe7bf7b | 386 | /* Special-purpose registers. */ |
c11d79f2 KB |
387 | if (flags & PTHDB_FLAG_SPRS) |
388 | { | |
389 | if (arch64) | |
390 | { | |
0fe7bf7b MS |
391 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
392 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 KB |
393 | memset (&sprs64, 0, sizeof (sprs64)); |
394 | memcpy (&context->msr, &sprs64, sizeof(sprs64)); | |
395 | } | |
396 | else | |
397 | { | |
fecf803e | 398 | if (!ptrace32 (PTT_READ_SPRS, tid, (addr_ptr) &sprs32, 0, NULL)) |
c11d79f2 KB |
399 | memset (&sprs32, 0, sizeof (sprs32)); |
400 | memcpy (&context->msr, &sprs32, sizeof(sprs32)); | |
401 | } | |
402 | } | |
403 | return 0; | |
404 | } | |
405 | ||
0fe7bf7b | 406 | /* Write register function should be able to write requested context |
0963b4bd | 407 | information to specified debuggee's kernel thread id. |
0fe7bf7b MS |
408 | If successful return 0, else non-zero is returned. */ |
409 | ||
c11d79f2 KB |
410 | static int |
411 | pdc_write_regs (pthdb_user_t user, | |
412 | pthdb_tid_t tid, | |
413 | unsigned long long flags, | |
414 | pthdb_context_t *context) | |
415 | { | |
0fe7bf7b MS |
416 | /* This function doesn't appear to be used, so we could probably |
417 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
418 | complain and several thread debug functions will fail. In case | |
419 | this is needed, I have implemented what I think it should do, | |
420 | however this code is untested. */ | |
c11d79f2 | 421 | |
8e2c28d4 | 422 | if (debug_aix_thread) |
27bae383 | 423 | fprintf_unfiltered (gdb_stdlog, "pdc_write_regs tid=%d flags=%s\n", |
bb599908 | 424 | (int) tid, hex_string (flags)); |
c11d79f2 | 425 | |
0fe7bf7b | 426 | /* General-purpose registers. */ |
c11d79f2 KB |
427 | if (flags & PTHDB_FLAG_GPRS) |
428 | { | |
429 | if (arch64) | |
0fe7bf7b | 430 | ptrace64aix (PTT_WRITE_GPRS, tid, |
206d3d3c | 431 | (unsigned long) context->gpr, 0, NULL); |
c11d79f2 | 432 | else |
fecf803e | 433 | ptrace32 (PTT_WRITE_GPRS, tid, (addr_ptr) context->gpr, 0, NULL); |
c11d79f2 KB |
434 | } |
435 | ||
0fe7bf7b | 436 | /* Floating-point registers. */ |
c11d79f2 KB |
437 | if (flags & PTHDB_FLAG_FPRS) |
438 | { | |
fecf803e | 439 | ptrace32 (PTT_WRITE_FPRS, tid, (addr_ptr) context->fpr, 0, NULL); |
c11d79f2 KB |
440 | } |
441 | ||
0fe7bf7b | 442 | /* Special-purpose registers. */ |
c11d79f2 KB |
443 | if (flags & PTHDB_FLAG_SPRS) |
444 | { | |
445 | if (arch64) | |
446 | { | |
0fe7bf7b MS |
447 | ptrace64aix (PTT_WRITE_SPRS, tid, |
448 | (unsigned long) &context->msr, 0, NULL); | |
c11d79f2 KB |
449 | } |
450 | else | |
451 | { | |
fecf803e | 452 | ptrace32 (PTT_WRITE_SPRS, tid, (addr_ptr) &context->msr, 0, NULL); |
c11d79f2 KB |
453 | } |
454 | } | |
455 | return 0; | |
456 | } | |
457 | ||
0fe7bf7b | 458 | /* pthdb callback: read LEN bytes from process ADDR into BUF. */ |
c11d79f2 KB |
459 | |
460 | static int | |
0fe7bf7b MS |
461 | pdc_read_data (pthdb_user_t user, void *buf, |
462 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
463 | { |
464 | int status, ret; | |
465 | ||
8e2c28d4 KB |
466 | if (debug_aix_thread) |
467 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 468 | "pdc_read_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 469 | user, (long) buf, hex_string (addr), len); |
c11d79f2 KB |
470 | |
471 | status = target_read_memory (addr, buf, len); | |
472 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; | |
473 | ||
8e2c28d4 | 474 | if (debug_aix_thread) |
27bae383 | 475 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", |
0fe7bf7b | 476 | status, pd_status2str (ret)); |
c11d79f2 KB |
477 | return ret; |
478 | } | |
479 | ||
0fe7bf7b | 480 | /* pthdb callback: write LEN bytes from BUF to process ADDR. */ |
c11d79f2 KB |
481 | |
482 | static int | |
0fe7bf7b MS |
483 | pdc_write_data (pthdb_user_t user, void *buf, |
484 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
485 | { |
486 | int status, ret; | |
487 | ||
8e2c28d4 KB |
488 | if (debug_aix_thread) |
489 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 490 | "pdc_write_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 491 | user, (long) buf, hex_string (addr), len); |
c11d79f2 KB |
492 | |
493 | status = target_write_memory (addr, buf, len); | |
494 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; | |
495 | ||
8e2c28d4 | 496 | if (debug_aix_thread) |
27bae383 | 497 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", status, |
8e2c28d4 | 498 | pd_status2str (ret)); |
c11d79f2 KB |
499 | return ret; |
500 | } | |
501 | ||
0fe7bf7b MS |
502 | /* pthdb callback: allocate a LEN-byte buffer and store a pointer to it |
503 | in BUFP. */ | |
c11d79f2 KB |
504 | |
505 | static int | |
506 | pdc_alloc (pthdb_user_t user, size_t len, void **bufp) | |
507 | { | |
8e2c28d4 KB |
508 | if (debug_aix_thread) |
509 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 510 | "pdc_alloc (user = %ld, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 511 | user, len, (long) bufp); |
c11d79f2 | 512 | *bufp = xmalloc (len); |
8e2c28d4 | 513 | if (debug_aix_thread) |
0fe7bf7b | 514 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 515 | " malloc returned 0x%lx\n", (long) *bufp); |
0fe7bf7b MS |
516 | |
517 | /* Note: xmalloc() can't return 0; therefore PDC_FAILURE will never | |
518 | be returned. */ | |
519 | ||
c11d79f2 KB |
520 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
521 | } | |
522 | ||
0fe7bf7b MS |
523 | /* pthdb callback: reallocate BUF, which was allocated by the alloc or |
524 | realloc callback, so that it contains LEN bytes, and store a | |
525 | pointer to the result in BUFP. */ | |
c11d79f2 KB |
526 | |
527 | static int | |
528 | pdc_realloc (pthdb_user_t user, void *buf, size_t len, void **bufp) | |
529 | { | |
8e2c28d4 KB |
530 | if (debug_aix_thread) |
531 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 532 | "pdc_realloc (user = %ld, buf = 0x%lx, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 533 | user, (long) buf, len, (long) bufp); |
be006b8b | 534 | *bufp = xrealloc (buf, len); |
8e2c28d4 | 535 | if (debug_aix_thread) |
0fe7bf7b | 536 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 537 | " realloc returned 0x%lx\n", (long) *bufp); |
c11d79f2 KB |
538 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
539 | } | |
540 | ||
0fe7bf7b MS |
541 | /* pthdb callback: free BUF, which was allocated by the alloc or |
542 | realloc callback. */ | |
c11d79f2 KB |
543 | |
544 | static int | |
545 | pdc_dealloc (pthdb_user_t user, void *buf) | |
546 | { | |
8e2c28d4 | 547 | if (debug_aix_thread) |
0fe7bf7b | 548 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 549 | "pdc_free (user = %ld, buf = 0x%lx)\n", user, |
8e2c28d4 | 550 | (long) buf); |
c11d79f2 KB |
551 | xfree (buf); |
552 | return PDC_SUCCESS; | |
553 | } | |
554 | ||
0fe7bf7b | 555 | /* Return a printable representation of pthread STATE. */ |
c11d79f2 KB |
556 | |
557 | static char * | |
558 | state2str (pthdb_state_t state) | |
559 | { | |
560 | switch (state) | |
561 | { | |
edefbb7c AC |
562 | case PST_IDLE: |
563 | /* i18n: Like "Thread-Id %d, [state] idle" */ | |
564 | return _("idle"); /* being created */ | |
565 | case PST_RUN: | |
566 | /* i18n: Like "Thread-Id %d, [state] running" */ | |
567 | return _("running"); /* running */ | |
568 | case PST_SLEEP: | |
569 | /* i18n: Like "Thread-Id %d, [state] sleeping" */ | |
570 | return _("sleeping"); /* awaiting an event */ | |
571 | case PST_READY: | |
572 | /* i18n: Like "Thread-Id %d, [state] ready" */ | |
573 | return _("ready"); /* runnable */ | |
574 | case PST_TERM: | |
575 | /* i18n: Like "Thread-Id %d, [state] finished" */ | |
576 | return _("finished"); /* awaiting a join/detach */ | |
577 | default: | |
578 | /* i18n: Like "Thread-Id %d, [state] unknown" */ | |
579 | return _("unknown"); | |
c11d79f2 KB |
580 | } |
581 | } | |
582 | ||
0fe7bf7b | 583 | /* qsort() comparison function for sorting pd_thread structs by pthid. */ |
c11d79f2 KB |
584 | |
585 | static int | |
586 | pcmp (const void *p1v, const void *p2v) | |
587 | { | |
588 | struct pd_thread *p1 = (struct pd_thread *) p1v; | |
589 | struct pd_thread *p2 = (struct pd_thread *) p2v; | |
590 | return p1->pthid < p2->pthid ? -1 : p1->pthid > p2->pthid; | |
591 | } | |
592 | ||
77f0be4e JB |
593 | /* iterate_over_threads() callback for counting GDB threads. |
594 | ||
595 | Do not count the main thread (whose tid is zero). This matches | |
596 | the list of threads provided by the pthreaddebug library, which | |
597 | does not include that main thread either, and thus allows us | |
598 | to compare the two lists. */ | |
c11d79f2 KB |
599 | |
600 | static int | |
601 | giter_count (struct thread_info *thread, void *countp) | |
602 | { | |
77f0be4e JB |
603 | if (PD_TID (thread->ptid)) |
604 | (*(int *) countp)++; | |
c11d79f2 KB |
605 | return 0; |
606 | } | |
607 | ||
77f0be4e JB |
608 | /* iterate_over_threads() callback for accumulating GDB thread pids. |
609 | ||
610 | Do not include the main thread (whose tid is zero). This matches | |
611 | the list of threads provided by the pthreaddebug library, which | |
612 | does not include that main thread either, and thus allows us | |
613 | to compare the two lists. */ | |
c11d79f2 KB |
614 | |
615 | static int | |
616 | giter_accum (struct thread_info *thread, void *bufp) | |
617 | { | |
77f0be4e JB |
618 | if (PD_TID (thread->ptid)) |
619 | { | |
620 | **(struct thread_info ***) bufp = thread; | |
621 | (*(struct thread_info ***) bufp)++; | |
622 | } | |
c11d79f2 KB |
623 | return 0; |
624 | } | |
625 | ||
626 | /* ptid comparison function */ | |
0fe7bf7b | 627 | |
c11d79f2 KB |
628 | static int |
629 | ptid_cmp (ptid_t ptid1, ptid_t ptid2) | |
630 | { | |
631 | int pid1, pid2; | |
632 | ||
633 | if (ptid_get_pid (ptid1) < ptid_get_pid (ptid2)) | |
634 | return -1; | |
635 | else if (ptid_get_pid (ptid1) > ptid_get_pid (ptid2)) | |
636 | return 1; | |
637 | else if (ptid_get_tid (ptid1) < ptid_get_tid (ptid2)) | |
638 | return -1; | |
639 | else if (ptid_get_tid (ptid1) > ptid_get_tid (ptid2)) | |
640 | return 1; | |
641 | else if (ptid_get_lwp (ptid1) < ptid_get_lwp (ptid2)) | |
642 | return -1; | |
643 | else if (ptid_get_lwp (ptid1) > ptid_get_lwp (ptid2)) | |
644 | return 1; | |
645 | else | |
646 | return 0; | |
647 | } | |
648 | ||
0fe7bf7b | 649 | /* qsort() comparison function for sorting thread_info structs by pid. */ |
c11d79f2 KB |
650 | |
651 | static int | |
652 | gcmp (const void *t1v, const void *t2v) | |
653 | { | |
654 | struct thread_info *t1 = *(struct thread_info **) t1v; | |
655 | struct thread_info *t2 = *(struct thread_info **) t2v; | |
656 | return ptid_cmp (t1->ptid, t2->ptid); | |
657 | } | |
658 | ||
9ad7bec7 JB |
659 | /* Search through the list of all kernel threads for the thread |
660 | that has stopped on a SIGTRAP signal, and return its TID. | |
661 | Return 0 if none found. */ | |
662 | ||
663 | static pthdb_tid_t | |
664 | get_signaled_thread (void) | |
665 | { | |
666 | struct thrdsinfo64 thrinf; | |
eff44fea | 667 | tid_t ktid = 0; |
9ad7bec7 JB |
668 | int result = 0; |
669 | ||
9ad7bec7 JB |
670 | while (1) |
671 | { | |
672 | if (getthrds (PIDGET (inferior_ptid), &thrinf, | |
673 | sizeof (thrinf), &ktid, 1) != 1) | |
674 | break; | |
675 | ||
676 | if (thrinf.ti_cursig == SIGTRAP) | |
677 | return thrinf.ti_tid; | |
678 | } | |
679 | ||
680 | /* Didn't find any thread stopped on a SIGTRAP signal. */ | |
681 | return 0; | |
682 | } | |
683 | ||
c11d79f2 KB |
684 | /* Synchronize GDB's thread list with libpthdebug's. |
685 | ||
686 | There are some benefits of doing this every time the inferior stops: | |
687 | ||
0fe7bf7b MS |
688 | - allows users to run thread-specific commands without needing to |
689 | run "info threads" first | |
c11d79f2 KB |
690 | |
691 | - helps pthdb_tid_pthread() work properly (see "libpthdebug | |
692 | peculiarities" at the top of this module) | |
693 | ||
0fe7bf7b MS |
694 | - simplifies the demands placed on libpthdebug, which seems to |
695 | have difficulty with certain call patterns */ | |
c11d79f2 KB |
696 | |
697 | static void | |
698 | sync_threadlists (void) | |
699 | { | |
700 | int cmd, status, infpid; | |
701 | int pcount, psize, pi, gcount, gi; | |
702 | struct pd_thread *pbuf; | |
703 | struct thread_info **gbuf, **g, *thread; | |
704 | pthdb_pthread_t pdtid; | |
705 | pthread_t pthid; | |
706 | pthdb_tid_t tid; | |
c11d79f2 | 707 | |
0fe7bf7b | 708 | /* Accumulate an array of libpthdebug threads sorted by pthread id. */ |
c11d79f2 KB |
709 | |
710 | pcount = 0; | |
711 | psize = 1; | |
712 | pbuf = (struct pd_thread *) xmalloc (psize * sizeof *pbuf); | |
713 | ||
714 | for (cmd = PTHDB_LIST_FIRST;; cmd = PTHDB_LIST_NEXT) | |
715 | { | |
716 | status = pthdb_pthread (pd_session, &pdtid, cmd); | |
717 | if (status != PTHDB_SUCCESS || pdtid == PTHDB_INVALID_PTHREAD) | |
718 | break; | |
719 | ||
720 | status = pthdb_pthread_ptid (pd_session, pdtid, &pthid); | |
721 | if (status != PTHDB_SUCCESS || pthid == PTHDB_INVALID_PTID) | |
722 | continue; | |
723 | ||
724 | if (pcount == psize) | |
725 | { | |
726 | psize *= 2; | |
0fe7bf7b MS |
727 | pbuf = (struct pd_thread *) xrealloc (pbuf, |
728 | psize * sizeof *pbuf); | |
c11d79f2 KB |
729 | } |
730 | pbuf[pcount].pdtid = pdtid; | |
731 | pbuf[pcount].pthid = pthid; | |
732 | pcount++; | |
733 | } | |
734 | ||
735 | for (pi = 0; pi < pcount; pi++) | |
736 | { | |
737 | status = pthdb_pthread_tid (pd_session, pbuf[pi].pdtid, &tid); | |
738 | if (status != PTHDB_SUCCESS) | |
739 | tid = PTHDB_INVALID_TID; | |
740 | pbuf[pi].tid = tid; | |
741 | } | |
742 | ||
743 | qsort (pbuf, pcount, sizeof *pbuf, pcmp); | |
744 | ||
0fe7bf7b | 745 | /* Accumulate an array of GDB threads sorted by pid. */ |
c11d79f2 KB |
746 | |
747 | gcount = 0; | |
748 | iterate_over_threads (giter_count, &gcount); | |
749 | g = gbuf = (struct thread_info **) xmalloc (gcount * sizeof *gbuf); | |
750 | iterate_over_threads (giter_accum, &g); | |
751 | qsort (gbuf, gcount, sizeof *gbuf, gcmp); | |
752 | ||
0fe7bf7b | 753 | /* Apply differences between the two arrays to GDB's thread list. */ |
c11d79f2 KB |
754 | |
755 | infpid = PIDGET (inferior_ptid); | |
756 | for (pi = gi = 0; pi < pcount || gi < gcount;) | |
757 | { | |
c11d79f2 | 758 | if (pi == pcount) |
c11d79f2 | 759 | { |
42cc437f | 760 | delete_thread (gbuf[gi]->ptid); |
c11d79f2 KB |
761 | gi++; |
762 | } | |
42cc437f | 763 | else if (gi == gcount) |
c11d79f2 | 764 | { |
42cc437f | 765 | thread = add_thread (BUILD_THREAD (pbuf[pi].pthid, infpid)); |
c11d79f2 | 766 | thread->private = xmalloc (sizeof (struct private_thread_info)); |
42cc437f KB |
767 | thread->private->pdtid = pbuf[pi].pdtid; |
768 | thread->private->tid = pbuf[pi].tid; | |
c11d79f2 KB |
769 | pi++; |
770 | } | |
42cc437f KB |
771 | else |
772 | { | |
773 | ptid_t pptid, gptid; | |
774 | int cmp_result; | |
775 | ||
776 | pptid = BUILD_THREAD (pbuf[pi].pthid, infpid); | |
777 | gptid = gbuf[gi]->ptid; | |
778 | pdtid = pbuf[pi].pdtid; | |
779 | tid = pbuf[pi].tid; | |
c11d79f2 | 780 | |
42cc437f KB |
781 | cmp_result = ptid_cmp (pptid, gptid); |
782 | ||
783 | if (cmp_result == 0) | |
784 | { | |
785 | gbuf[gi]->private->pdtid = pdtid; | |
786 | gbuf[gi]->private->tid = tid; | |
787 | pi++; | |
788 | gi++; | |
789 | } | |
790 | else if (cmp_result > 0) | |
791 | { | |
792 | delete_thread (gptid); | |
793 | gi++; | |
794 | } | |
795 | else | |
796 | { | |
797 | thread = add_thread (pptid); | |
798 | thread->private = xmalloc (sizeof (struct private_thread_info)); | |
799 | thread->private->pdtid = pdtid; | |
800 | thread->private->tid = tid; | |
801 | pi++; | |
802 | } | |
803 | } | |
c11d79f2 KB |
804 | } |
805 | ||
806 | xfree (pbuf); | |
807 | xfree (gbuf); | |
808 | } | |
809 | ||
9ad7bec7 JB |
810 | /* Iterate_over_threads() callback for locating a thread, using |
811 | the TID of its associated kernel thread. */ | |
c11d79f2 KB |
812 | |
813 | static int | |
9ad7bec7 | 814 | iter_tid (struct thread_info *thread, void *tidp) |
c11d79f2 | 815 | { |
9ad7bec7 | 816 | const pthdb_tid_t tid = *(pthdb_tid_t *)tidp; |
c11d79f2 | 817 | |
9ad7bec7 | 818 | return (thread->private->tid == tid); |
c11d79f2 KB |
819 | } |
820 | ||
0fe7bf7b MS |
821 | /* Synchronize libpthdebug's state with the inferior and with GDB, |
822 | generate a composite process/thread <pid> for the current thread, | |
823 | set inferior_ptid to <pid> if SET_INFPID, and return <pid>. */ | |
c11d79f2 KB |
824 | |
825 | static ptid_t | |
826 | pd_update (int set_infpid) | |
827 | { | |
828 | int status; | |
829 | ptid_t ptid; | |
9ad7bec7 JB |
830 | pthdb_tid_t tid; |
831 | struct thread_info *thread = NULL; | |
c11d79f2 KB |
832 | |
833 | if (!pd_active) | |
834 | return inferior_ptid; | |
835 | ||
836 | status = pthdb_session_update (pd_session); | |
837 | if (status != PTHDB_SUCCESS) | |
838 | return inferior_ptid; | |
839 | ||
840 | sync_threadlists (); | |
841 | ||
0fe7bf7b | 842 | /* Define "current thread" as one that just received a trap signal. */ |
c11d79f2 | 843 | |
9ad7bec7 JB |
844 | tid = get_signaled_thread (); |
845 | if (tid != 0) | |
846 | thread = iterate_over_threads (iter_tid, &tid); | |
c11d79f2 KB |
847 | if (!thread) |
848 | ptid = inferior_ptid; | |
849 | else | |
850 | { | |
851 | ptid = thread->ptid; | |
852 | if (set_infpid) | |
853 | inferior_ptid = ptid; | |
854 | } | |
855 | return ptid; | |
856 | } | |
857 | ||
0963b4bd | 858 | /* Try to start debugging threads in the current process. |
0fe7bf7b MS |
859 | If successful and SET_INFPID, set inferior_ptid to reflect the |
860 | current thread. */ | |
c11d79f2 KB |
861 | |
862 | static ptid_t | |
863 | pd_activate (int set_infpid) | |
864 | { | |
865 | int status; | |
866 | ||
867 | status = pthdb_session_init (PD_USER, arch64 ? PEM_64BIT : PEM_32BIT, | |
0fe7bf7b MS |
868 | PTHDB_FLAG_REGS, &pd_callbacks, |
869 | &pd_session); | |
c11d79f2 KB |
870 | if (status != PTHDB_SUCCESS) |
871 | { | |
872 | return inferior_ptid; | |
873 | } | |
874 | pd_active = 1; | |
875 | return pd_update (set_infpid); | |
876 | } | |
877 | ||
0fe7bf7b | 878 | /* Undo the effects of pd_activate(). */ |
c11d79f2 KB |
879 | |
880 | static void | |
881 | pd_deactivate (void) | |
882 | { | |
883 | if (!pd_active) | |
884 | return; | |
885 | pthdb_session_destroy (pd_session); | |
886 | ||
887 | pid_to_prc (&inferior_ptid); | |
888 | pd_active = 0; | |
889 | } | |
890 | ||
0fe7bf7b MS |
891 | /* An object file has just been loaded. Check whether the current |
892 | application is pthreaded, and if so, prepare for thread debugging. */ | |
c11d79f2 KB |
893 | |
894 | static void | |
895 | pd_enable (void) | |
896 | { | |
897 | int status; | |
898 | char *stub_name; | |
899 | struct minimal_symbol *ms; | |
900 | ||
0fe7bf7b | 901 | /* Don't initialize twice. */ |
c11d79f2 KB |
902 | if (pd_able) |
903 | return; | |
904 | ||
0fe7bf7b | 905 | /* Check application word size. */ |
f5656ead | 906 | arch64 = register_size (target_gdbarch (), 0) == 8; |
c11d79f2 | 907 | |
0fe7bf7b | 908 | /* Check whether the application is pthreaded. */ |
c11d79f2 | 909 | stub_name = NULL; |
0fe7bf7b MS |
910 | status = pthdb_session_pthreaded (PD_USER, PTHDB_FLAG_REGS, |
911 | &pd_callbacks, &stub_name); | |
f8bf5763 PM |
912 | if ((status != PTHDB_SUCCESS |
913 | && status != PTHDB_NOT_PTHREADED) || !stub_name) | |
c11d79f2 KB |
914 | return; |
915 | ||
0fe7bf7b | 916 | /* Set a breakpoint on the returned stub function. */ |
c11d79f2 KB |
917 | if (!(ms = lookup_minimal_symbol (stub_name, NULL, NULL))) |
918 | return; | |
919 | pd_brk_addr = SYMBOL_VALUE_ADDRESS (ms); | |
f5656ead | 920 | if (!create_thread_event_breakpoint (target_gdbarch (), pd_brk_addr)) |
c11d79f2 KB |
921 | return; |
922 | ||
0fe7bf7b | 923 | /* Prepare for thread debugging. */ |
206d3d3c | 924 | push_target (&aix_thread_ops); |
c11d79f2 KB |
925 | pd_able = 1; |
926 | ||
0fe7bf7b MS |
927 | /* If we're debugging a core file or an attached inferior, the |
928 | pthread library may already have been initialized, so try to | |
929 | activate thread debugging. */ | |
c11d79f2 KB |
930 | pd_activate (1); |
931 | } | |
932 | ||
0fe7bf7b | 933 | /* Undo the effects of pd_enable(). */ |
c11d79f2 KB |
934 | |
935 | static void | |
936 | pd_disable (void) | |
937 | { | |
938 | if (!pd_able) | |
939 | return; | |
940 | if (pd_active) | |
941 | pd_deactivate (); | |
942 | pd_able = 0; | |
206d3d3c | 943 | unpush_target (&aix_thread_ops); |
c11d79f2 KB |
944 | } |
945 | ||
06d3b283 | 946 | /* new_objfile observer callback. |
c11d79f2 | 947 | |
0fe7bf7b MS |
948 | If OBJFILE is non-null, check whether a threaded application is |
949 | being debugged, and if so, prepare for thread debugging. | |
c11d79f2 | 950 | |
0fe7bf7b | 951 | If OBJFILE is null, stop debugging threads. */ |
c11d79f2 KB |
952 | |
953 | static void | |
954 | new_objfile (struct objfile *objfile) | |
955 | { | |
956 | if (objfile) | |
957 | pd_enable (); | |
958 | else | |
959 | pd_disable (); | |
c11d79f2 KB |
960 | } |
961 | ||
0fe7bf7b | 962 | /* Attach to process specified by ARGS. */ |
c11d79f2 KB |
963 | |
964 | static void | |
136d6dae | 965 | aix_thread_attach (struct target_ops *ops, char *args, int from_tty) |
c11d79f2 | 966 | { |
d30acaa7 JB |
967 | struct target_ops *beneath = find_target_beneath (ops); |
968 | ||
969 | beneath->to_attach (beneath, args, from_tty); | |
c11d79f2 KB |
970 | pd_activate (1); |
971 | } | |
972 | ||
206d3d3c | 973 | /* Detach from the process attached to by aix_thread_attach(). */ |
c11d79f2 KB |
974 | |
975 | static void | |
136d6dae | 976 | aix_thread_detach (struct target_ops *ops, char *args, int from_tty) |
c11d79f2 | 977 | { |
d30acaa7 JB |
978 | struct target_ops *beneath = find_target_beneath (ops); |
979 | ||
6c0c456d | 980 | pd_disable (); |
d30acaa7 | 981 | beneath->to_detach (beneath, args, from_tty); |
c11d79f2 KB |
982 | } |
983 | ||
984 | /* Tell the inferior process to continue running thread PID if != -1 | |
0fe7bf7b | 985 | and all threads otherwise. */ |
c11d79f2 KB |
986 | |
987 | static void | |
c7660128 | 988 | aix_thread_resume (struct target_ops *ops, |
2ea28649 | 989 | ptid_t ptid, int step, enum gdb_signal sig) |
c11d79f2 KB |
990 | { |
991 | struct thread_info *thread; | |
992 | pthdb_tid_t tid[2]; | |
993 | ||
994 | if (!PD_TID (ptid)) | |
14fa3751 KB |
995 | { |
996 | struct cleanup *cleanup = save_inferior_ptid (); | |
d30acaa7 JB |
997 | struct target_ops *beneath = find_target_beneath (ops); |
998 | ||
14fa3751 | 999 | inferior_ptid = pid_to_ptid (PIDGET (inferior_ptid)); |
d30acaa7 | 1000 | beneath->to_resume (beneath, ptid, step, sig); |
14fa3751 KB |
1001 | do_cleanups (cleanup); |
1002 | } | |
c11d79f2 KB |
1003 | else |
1004 | { | |
e09875d4 | 1005 | thread = find_thread_ptid (ptid); |
c11d79f2 | 1006 | if (!thread) |
edefbb7c | 1007 | error (_("aix-thread resume: unknown pthread %ld"), |
0fe7bf7b | 1008 | TIDGET (ptid)); |
c11d79f2 KB |
1009 | |
1010 | tid[0] = thread->private->tid; | |
1011 | if (tid[0] == PTHDB_INVALID_TID) | |
edefbb7c | 1012 | error (_("aix-thread resume: no tid for pthread %ld"), |
0fe7bf7b | 1013 | TIDGET (ptid)); |
c11d79f2 KB |
1014 | tid[1] = 0; |
1015 | ||
1016 | if (arch64) | |
fecf803e | 1017 | ptrace64aix (PTT_CONTINUE, tid[0], (long long) 1, |
2ea28649 | 1018 | gdb_signal_to_host (sig), (void *) tid); |
c11d79f2 | 1019 | else |
fecf803e | 1020 | ptrace32 (PTT_CONTINUE, tid[0], (addr_ptr) 1, |
2ea28649 | 1021 | gdb_signal_to_host (sig), (void *) tid); |
c11d79f2 KB |
1022 | } |
1023 | } | |
1024 | ||
0fe7bf7b MS |
1025 | /* Wait for thread/process ID if != -1 or for any thread otherwise. |
1026 | If an error occurs, return -1, else return the pid of the stopped | |
1027 | thread. */ | |
c11d79f2 KB |
1028 | |
1029 | static ptid_t | |
117de6a9 | 1030 | aix_thread_wait (struct target_ops *ops, |
8914d83b | 1031 | ptid_t ptid, struct target_waitstatus *status, int options) |
c11d79f2 | 1032 | { |
14fa3751 | 1033 | struct cleanup *cleanup = save_inferior_ptid (); |
d30acaa7 | 1034 | struct target_ops *beneath = find_target_beneath (ops); |
14fa3751 | 1035 | |
c11d79f2 | 1036 | pid_to_prc (&ptid); |
14fa3751 KB |
1037 | |
1038 | inferior_ptid = pid_to_ptid (PIDGET (inferior_ptid)); | |
8914d83b | 1039 | ptid = beneath->to_wait (beneath, ptid, status, options); |
14fa3751 KB |
1040 | do_cleanups (cleanup); |
1041 | ||
c11d79f2 KB |
1042 | if (PIDGET (ptid) == -1) |
1043 | return pid_to_ptid (-1); | |
1044 | ||
0fe7bf7b | 1045 | /* Check whether libpthdebug might be ready to be initialized. */ |
515630c5 | 1046 | if (!pd_active && status->kind == TARGET_WAITKIND_STOPPED |
a493e3e2 | 1047 | && status->value.sig == GDB_SIGNAL_TRAP) |
515630c5 UW |
1048 | { |
1049 | struct regcache *regcache = get_thread_regcache (ptid); | |
1050 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
1051 | ||
1052 | if (regcache_read_pc (regcache) | |
1053 | - gdbarch_decr_pc_after_break (gdbarch) == pd_brk_addr) | |
1054 | return pd_activate (0); | |
1055 | } | |
c11d79f2 KB |
1056 | |
1057 | return pd_update (0); | |
1058 | } | |
1059 | ||
0fe7bf7b | 1060 | /* Record that the 64-bit general-purpose registers contain VALS. */ |
c11d79f2 KB |
1061 | |
1062 | static void | |
647478e0 | 1063 | supply_gprs64 (struct regcache *regcache, uint64_t *vals) |
c11d79f2 | 1064 | { |
c7f30c7a | 1065 | struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache)); |
c11d79f2 KB |
1066 | int regno; |
1067 | ||
063715bf | 1068 | for (regno = 0; regno < ppc_num_gprs; regno++) |
647478e0 | 1069 | regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + regno, |
23a6d369 | 1070 | (char *) (vals + regno)); |
c11d79f2 KB |
1071 | } |
1072 | ||
0fe7bf7b | 1073 | /* Record that 32-bit register REGNO contains VAL. */ |
c11d79f2 KB |
1074 | |
1075 | static void | |
647478e0 | 1076 | supply_reg32 (struct regcache *regcache, int regno, uint32_t val) |
c11d79f2 | 1077 | { |
647478e0 | 1078 | regcache_raw_supply (regcache, regno, (char *) &val); |
c11d79f2 KB |
1079 | } |
1080 | ||
0fe7bf7b | 1081 | /* Record that the floating-point registers contain VALS. */ |
c11d79f2 KB |
1082 | |
1083 | static void | |
647478e0 | 1084 | supply_fprs (struct regcache *regcache, double *vals) |
c11d79f2 | 1085 | { |
c7f30c7a UW |
1086 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1087 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
c11d79f2 KB |
1088 | int regno; |
1089 | ||
383f0f5b JB |
1090 | /* This function should never be called on architectures without |
1091 | floating-point registers. */ | |
c7f30c7a | 1092 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1093 | |
786c562f JB |
1094 | for (regno = tdep->ppc_fp0_regnum; |
1095 | regno < tdep->ppc_fp0_regnum + ppc_num_fprs; | |
1096 | regno++) | |
1097 | regcache_raw_supply (regcache, regno, | |
1098 | (char *) (vals + regno - tdep->ppc_fp0_regnum)); | |
c11d79f2 KB |
1099 | } |
1100 | ||
f1a91342 KB |
1101 | /* Predicate to test whether given register number is a "special" register. */ |
1102 | static int | |
9970f04b | 1103 | special_register_p (struct gdbarch *gdbarch, int regno) |
f1a91342 | 1104 | { |
9970f04b | 1105 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1106 | |
9970f04b | 1107 | return regno == gdbarch_pc_regnum (gdbarch) |
f1a91342 KB |
1108 | || regno == tdep->ppc_ps_regnum |
1109 | || regno == tdep->ppc_cr_regnum | |
1110 | || regno == tdep->ppc_lr_regnum | |
1111 | || regno == tdep->ppc_ctr_regnum | |
1112 | || regno == tdep->ppc_xer_regnum | |
383f0f5b | 1113 | || (tdep->ppc_fpscr_regnum >= 0 && regno == tdep->ppc_fpscr_regnum) |
f1a91342 KB |
1114 | || (tdep->ppc_mq_regnum >= 0 && regno == tdep->ppc_mq_regnum); |
1115 | } | |
1116 | ||
1117 | ||
0fe7bf7b MS |
1118 | /* Record that the special registers contain the specified 64-bit and |
1119 | 32-bit values. */ | |
c11d79f2 KB |
1120 | |
1121 | static void | |
647478e0 UW |
1122 | supply_sprs64 (struct regcache *regcache, |
1123 | uint64_t iar, uint64_t msr, uint32_t cr, | |
0e061eef KB |
1124 | uint64_t lr, uint64_t ctr, uint32_t xer, |
1125 | uint32_t fpscr) | |
c11d79f2 | 1126 | { |
c7f30c7a UW |
1127 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1128 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 | 1129 | |
c7f30c7a | 1130 | regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch), |
3e8c568d | 1131 | (char *) &iar); |
647478e0 UW |
1132 | regcache_raw_supply (regcache, tdep->ppc_ps_regnum, (char *) &msr); |
1133 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, (char *) &cr); | |
1134 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, (char *) &lr); | |
1135 | regcache_raw_supply (regcache, tdep->ppc_ctr_regnum, (char *) &ctr); | |
1136 | regcache_raw_supply (regcache, tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1137 | if (tdep->ppc_fpscr_regnum >= 0) |
647478e0 | 1138 | regcache_raw_supply (regcache, tdep->ppc_fpscr_regnum, |
23a6d369 | 1139 | (char *) &fpscr); |
c11d79f2 KB |
1140 | } |
1141 | ||
0fe7bf7b MS |
1142 | /* Record that the special registers contain the specified 32-bit |
1143 | values. */ | |
c11d79f2 KB |
1144 | |
1145 | static void | |
647478e0 UW |
1146 | supply_sprs32 (struct regcache *regcache, |
1147 | uint32_t iar, uint32_t msr, uint32_t cr, | |
0e061eef KB |
1148 | uint32_t lr, uint32_t ctr, uint32_t xer, |
1149 | uint32_t fpscr) | |
c11d79f2 | 1150 | { |
c7f30c7a UW |
1151 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1152 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 | 1153 | |
c7f30c7a | 1154 | regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch), |
3e8c568d | 1155 | (char *) &iar); |
647478e0 UW |
1156 | regcache_raw_supply (regcache, tdep->ppc_ps_regnum, (char *) &msr); |
1157 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, (char *) &cr); | |
1158 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, (char *) &lr); | |
1159 | regcache_raw_supply (regcache, tdep->ppc_ctr_regnum, (char *) &ctr); | |
1160 | regcache_raw_supply (regcache, tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1161 | if (tdep->ppc_fpscr_regnum >= 0) |
647478e0 | 1162 | regcache_raw_supply (regcache, tdep->ppc_fpscr_regnum, |
23a6d369 | 1163 | (char *) &fpscr); |
c11d79f2 KB |
1164 | } |
1165 | ||
1166 | /* Fetch all registers from pthread PDTID, which doesn't have a kernel | |
1167 | thread. | |
1168 | ||
0fe7bf7b MS |
1169 | There's no way to query a single register from a non-kernel |
1170 | pthread, so there's no need for a single-register version of this | |
1171 | function. */ | |
c11d79f2 KB |
1172 | |
1173 | static void | |
647478e0 | 1174 | fetch_regs_user_thread (struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1175 | { |
c7f30c7a UW |
1176 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1177 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
c11d79f2 KB |
1178 | int status, i; |
1179 | pthdb_context_t ctx; | |
1180 | ||
8e2c28d4 | 1181 | if (debug_aix_thread) |
206d3d3c KB |
1182 | fprintf_unfiltered (gdb_stdlog, |
1183 | "fetch_regs_user_thread %lx\n", (long) pdtid); | |
c11d79f2 KB |
1184 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1185 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1186 | error (_("aix-thread: fetch_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1187 | pd_status2str (status)); |
c11d79f2 | 1188 | |
0fe7bf7b | 1189 | /* General-purpose registers. */ |
c11d79f2 KB |
1190 | |
1191 | if (arch64) | |
647478e0 | 1192 | supply_gprs64 (regcache, ctx.gpr); |
c11d79f2 | 1193 | else |
063715bf | 1194 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1195 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, ctx.gpr[i]); |
c11d79f2 | 1196 | |
0fe7bf7b | 1197 | /* Floating-point registers. */ |
c11d79f2 | 1198 | |
c7f30c7a | 1199 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1200 | supply_fprs (regcache, ctx.fpr); |
c11d79f2 | 1201 | |
0fe7bf7b | 1202 | /* Special registers. */ |
c11d79f2 KB |
1203 | |
1204 | if (arch64) | |
647478e0 UW |
1205 | supply_sprs64 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1206 | ctx.xer, ctx.fpscr); | |
c11d79f2 | 1207 | else |
647478e0 UW |
1208 | supply_sprs32 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1209 | ctx.xer, ctx.fpscr); | |
c11d79f2 KB |
1210 | } |
1211 | ||
0fe7bf7b MS |
1212 | /* Fetch register REGNO if != -1 or all registers otherwise from |
1213 | kernel thread TID. | |
c11d79f2 | 1214 | |
0fe7bf7b MS |
1215 | AIX provides a way to query all of a kernel thread's GPRs, FPRs, or |
1216 | SPRs, but there's no way to query individual registers within those | |
1217 | groups. Therefore, if REGNO != -1, this function fetches an entire | |
1218 | group. | |
c11d79f2 | 1219 | |
0fe7bf7b MS |
1220 | Unfortunately, kernel thread register queries often fail with |
1221 | EPERM, indicating that the thread is in kernel space. This breaks | |
1222 | backtraces of threads other than the current one. To make that | |
1223 | breakage obvious without throwing an error to top level (which is | |
1224 | bad e.g. during "info threads" output), zero registers that can't | |
1225 | be retrieved. */ | |
c11d79f2 KB |
1226 | |
1227 | static void | |
647478e0 UW |
1228 | fetch_regs_kernel_thread (struct regcache *regcache, int regno, |
1229 | pthdb_tid_t tid) | |
c11d79f2 | 1230 | { |
c7f30c7a UW |
1231 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1232 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
063715bf JB |
1233 | uint64_t gprs64[ppc_num_gprs]; |
1234 | uint32_t gprs32[ppc_num_gprs]; | |
1235 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
1236 | struct ptxsprs sprs64; |
1237 | struct ptsprs sprs32; | |
1238 | int i; | |
1239 | ||
8e2c28d4 KB |
1240 | if (debug_aix_thread) |
1241 | fprintf_unfiltered (gdb_stdlog, | |
206d3d3c KB |
1242 | "fetch_regs_kernel_thread tid=%lx regno=%d arch64=%d\n", |
1243 | (long) tid, regno, arch64); | |
c11d79f2 | 1244 | |
0fe7bf7b | 1245 | /* General-purpose registers. */ |
daf6dc85 JB |
1246 | if (regno == -1 |
1247 | || (tdep->ppc_gp0_regnum <= regno | |
1248 | && regno < tdep->ppc_gp0_regnum + ppc_num_gprs)) | |
c11d79f2 KB |
1249 | { |
1250 | if (arch64) | |
1251 | { | |
0fe7bf7b MS |
1252 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
1253 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 | 1254 | memset (gprs64, 0, sizeof (gprs64)); |
647478e0 | 1255 | supply_gprs64 (regcache, gprs64); |
c11d79f2 KB |
1256 | } |
1257 | else | |
1258 | { | |
fecf803e | 1259 | if (!ptrace32 (PTT_READ_GPRS, tid, (addr_ptr) gprs32, 0, NULL)) |
c11d79f2 | 1260 | memset (gprs32, 0, sizeof (gprs32)); |
063715bf | 1261 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1262 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, gprs32[i]); |
c11d79f2 KB |
1263 | } |
1264 | } | |
1265 | ||
0fe7bf7b | 1266 | /* Floating-point registers. */ |
c11d79f2 | 1267 | |
c7f30c7a | 1268 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1269 | && (regno == -1 |
1270 | || (regno >= tdep->ppc_fp0_regnum | |
1271 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 | 1272 | { |
fecf803e | 1273 | if (!ptrace32 (PTT_READ_FPRS, tid, (addr_ptr) fprs, 0, NULL)) |
c11d79f2 | 1274 | memset (fprs, 0, sizeof (fprs)); |
647478e0 | 1275 | supply_fprs (regcache, fprs); |
c11d79f2 KB |
1276 | } |
1277 | ||
0fe7bf7b | 1278 | /* Special-purpose registers. */ |
c11d79f2 | 1279 | |
9970f04b | 1280 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1281 | { |
1282 | if (arch64) | |
1283 | { | |
0fe7bf7b MS |
1284 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
1285 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 | 1286 | memset (&sprs64, 0, sizeof (sprs64)); |
647478e0 UW |
1287 | supply_sprs64 (regcache, sprs64.pt_iar, sprs64.pt_msr, |
1288 | sprs64.pt_cr, sprs64.pt_lr, sprs64.pt_ctr, | |
1289 | sprs64.pt_xer, sprs64.pt_fpscr); | |
c11d79f2 KB |
1290 | } |
1291 | else | |
1292 | { | |
c7f30c7a | 1293 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1294 | |
fecf803e | 1295 | if (!ptrace32 (PTT_READ_SPRS, tid, (addr_ptr) &sprs32, 0, NULL)) |
c11d79f2 | 1296 | memset (&sprs32, 0, sizeof (sprs32)); |
647478e0 | 1297 | supply_sprs32 (regcache, sprs32.pt_iar, sprs32.pt_msr, sprs32.pt_cr, |
0e061eef KB |
1298 | sprs32.pt_lr, sprs32.pt_ctr, sprs32.pt_xer, |
1299 | sprs32.pt_fpscr); | |
c11d79f2 | 1300 | |
f1a91342 | 1301 | if (tdep->ppc_mq_regnum >= 0) |
647478e0 | 1302 | regcache_raw_supply (regcache, tdep->ppc_mq_regnum, |
23a6d369 | 1303 | (char *) &sprs32.pt_mq); |
c11d79f2 KB |
1304 | } |
1305 | } | |
1306 | } | |
1307 | ||
1308 | /* Fetch register REGNO if != -1 or all registers otherwise in the | |
0fe7bf7b | 1309 | thread/process specified by inferior_ptid. */ |
c11d79f2 KB |
1310 | |
1311 | static void | |
c7660128 JB |
1312 | aix_thread_fetch_registers (struct target_ops *ops, |
1313 | struct regcache *regcache, int regno) | |
c11d79f2 KB |
1314 | { |
1315 | struct thread_info *thread; | |
1316 | pthdb_tid_t tid; | |
d30acaa7 | 1317 | struct target_ops *beneath = find_target_beneath (ops); |
c11d79f2 KB |
1318 | |
1319 | if (!PD_TID (inferior_ptid)) | |
d30acaa7 | 1320 | beneath->to_fetch_registers (beneath, regcache, regno); |
c11d79f2 KB |
1321 | else |
1322 | { | |
e09875d4 | 1323 | thread = find_thread_ptid (inferior_ptid); |
c11d79f2 KB |
1324 | tid = thread->private->tid; |
1325 | ||
1326 | if (tid == PTHDB_INVALID_TID) | |
56be3814 | 1327 | fetch_regs_user_thread (regcache, thread->private->pdtid); |
c11d79f2 | 1328 | else |
56be3814 | 1329 | fetch_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1330 | } |
1331 | } | |
1332 | ||
61c5da0b KB |
1333 | /* Store the gp registers into an array of uint32_t or uint64_t. */ |
1334 | ||
1335 | static void | |
647478e0 | 1336 | fill_gprs64 (const struct regcache *regcache, uint64_t *vals) |
61c5da0b | 1337 | { |
c7f30c7a | 1338 | struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache)); |
61c5da0b KB |
1339 | int regno; |
1340 | ||
daf6dc85 | 1341 | for (regno = 0; regno < ppc_num_gprs; regno++) |
672c9795 YQ |
1342 | if (REG_VALID == regcache_register_status (regcache, |
1343 | tdep->ppc_gp0_regnum + regno)) | |
647478e0 | 1344 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + regno, |
822c9732 | 1345 | vals + regno); |
61c5da0b KB |
1346 | } |
1347 | ||
1348 | static void | |
647478e0 | 1349 | fill_gprs32 (const struct regcache *regcache, uint32_t *vals) |
61c5da0b | 1350 | { |
c7f30c7a | 1351 | struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache)); |
61c5da0b KB |
1352 | int regno; |
1353 | ||
daf6dc85 | 1354 | for (regno = 0; regno < ppc_num_gprs; regno++) |
672c9795 YQ |
1355 | if (REG_VALID == regcache_register_status (regcache, |
1356 | tdep->ppc_gp0_regnum + regno)) | |
647478e0 | 1357 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + regno, |
822c9732 | 1358 | vals + regno); |
61c5da0b KB |
1359 | } |
1360 | ||
1361 | /* Store the floating point registers into a double array. */ | |
1362 | static void | |
647478e0 | 1363 | fill_fprs (const struct regcache *regcache, double *vals) |
61c5da0b | 1364 | { |
c7f30c7a UW |
1365 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1366 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
61c5da0b KB |
1367 | int regno; |
1368 | ||
383f0f5b JB |
1369 | /* This function should never be called on architectures without |
1370 | floating-point registers. */ | |
c7f30c7a | 1371 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1372 | |
366f009f JB |
1373 | for (regno = tdep->ppc_fp0_regnum; |
1374 | regno < tdep->ppc_fp0_regnum + ppc_num_fprs; | |
1375 | regno++) | |
672c9795 | 1376 | if (REG_VALID == regcache_register_status (regcache, regno)) |
e3ebf1bb JB |
1377 | regcache_raw_collect (regcache, regno, |
1378 | vals + regno - tdep->ppc_fp0_regnum); | |
61c5da0b KB |
1379 | } |
1380 | ||
c11d79f2 | 1381 | /* Store the special registers into the specified 64-bit and 32-bit |
0fe7bf7b | 1382 | locations. */ |
c11d79f2 KB |
1383 | |
1384 | static void | |
647478e0 UW |
1385 | fill_sprs64 (const struct regcache *regcache, |
1386 | uint64_t *iar, uint64_t *msr, uint32_t *cr, | |
0e061eef KB |
1387 | uint64_t *lr, uint64_t *ctr, uint32_t *xer, |
1388 | uint32_t *fpscr) | |
c11d79f2 | 1389 | { |
c7f30c7a UW |
1390 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1391 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 KB |
1392 | |
1393 | /* Verify that the size of the size of the IAR buffer is the | |
1394 | same as the raw size of the PC (in the register cache). If | |
1395 | they're not, then either GDB has been built incorrectly, or | |
1396 | there's some other kind of internal error. To be really safe, | |
1397 | we should check all of the sizes. */ | |
3e8c568d | 1398 | gdb_assert (sizeof (*iar) == register_size |
c7f30c7a | 1399 | (gdbarch, gdbarch_pc_regnum (gdbarch))); |
f1a91342 | 1400 | |
672c9795 YQ |
1401 | if (REG_VALID == regcache_register_status (regcache, |
1402 | gdbarch_pc_regnum (gdbarch))) | |
c7f30c7a | 1403 | regcache_raw_collect (regcache, gdbarch_pc_regnum (gdbarch), iar); |
672c9795 | 1404 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ps_regnum)) |
647478e0 | 1405 | regcache_raw_collect (regcache, tdep->ppc_ps_regnum, msr); |
672c9795 | 1406 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_cr_regnum)) |
647478e0 | 1407 | regcache_raw_collect (regcache, tdep->ppc_cr_regnum, cr); |
672c9795 | 1408 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_lr_regnum)) |
647478e0 | 1409 | regcache_raw_collect (regcache, tdep->ppc_lr_regnum, lr); |
672c9795 | 1410 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ctr_regnum)) |
647478e0 | 1411 | regcache_raw_collect (regcache, tdep->ppc_ctr_regnum, ctr); |
672c9795 | 1412 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_xer_regnum)) |
647478e0 | 1413 | regcache_raw_collect (regcache, tdep->ppc_xer_regnum, xer); |
383f0f5b | 1414 | if (tdep->ppc_fpscr_regnum >= 0 |
672c9795 YQ |
1415 | && REG_VALID == regcache_register_status (regcache, |
1416 | tdep->ppc_fpscr_regnum)) | |
647478e0 | 1417 | regcache_raw_collect (regcache, tdep->ppc_fpscr_regnum, fpscr); |
61c5da0b KB |
1418 | } |
1419 | ||
1420 | static void | |
647478e0 UW |
1421 | fill_sprs32 (const struct regcache *regcache, |
1422 | uint32_t *iar, uint32_t *msr, uint32_t *cr, | |
0d16ee5d UW |
1423 | uint32_t *lr, uint32_t *ctr, uint32_t *xer, |
1424 | uint32_t *fpscr) | |
61c5da0b | 1425 | { |
c7f30c7a UW |
1426 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1427 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 KB |
1428 | |
1429 | /* Verify that the size of the size of the IAR buffer is the | |
1430 | same as the raw size of the PC (in the register cache). If | |
1431 | they're not, then either GDB has been built incorrectly, or | |
1432 | there's some other kind of internal error. To be really safe, | |
0d16ee5d | 1433 | we should check all of the sizes. */ |
c7f30c7a UW |
1434 | gdb_assert (sizeof (*iar) == register_size (gdbarch, |
1435 | gdbarch_pc_regnum (gdbarch))); | |
f1a91342 | 1436 | |
672c9795 YQ |
1437 | if (REG_VALID == regcache_register_status (regcache, |
1438 | gdbarch_pc_regnum (gdbarch))) | |
c7f30c7a | 1439 | regcache_raw_collect (regcache, gdbarch_pc_regnum (gdbarch), iar); |
672c9795 | 1440 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ps_regnum)) |
647478e0 | 1441 | regcache_raw_collect (regcache, tdep->ppc_ps_regnum, msr); |
672c9795 | 1442 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_cr_regnum)) |
647478e0 | 1443 | regcache_raw_collect (regcache, tdep->ppc_cr_regnum, cr); |
672c9795 | 1444 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_lr_regnum)) |
647478e0 | 1445 | regcache_raw_collect (regcache, tdep->ppc_lr_regnum, lr); |
672c9795 | 1446 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ctr_regnum)) |
647478e0 | 1447 | regcache_raw_collect (regcache, tdep->ppc_ctr_regnum, ctr); |
672c9795 | 1448 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_xer_regnum)) |
647478e0 | 1449 | regcache_raw_collect (regcache, tdep->ppc_xer_regnum, xer); |
383f0f5b | 1450 | if (tdep->ppc_fpscr_regnum >= 0 |
672c9795 | 1451 | && REG_VALID == regcache_register_status (regcache, tdep->ppc_fpscr_regnum)) |
647478e0 | 1452 | regcache_raw_collect (regcache, tdep->ppc_fpscr_regnum, fpscr); |
c11d79f2 KB |
1453 | } |
1454 | ||
1455 | /* Store all registers into pthread PDTID, which doesn't have a kernel | |
1456 | thread. | |
1457 | ||
0fe7bf7b MS |
1458 | It's possible to store a single register into a non-kernel pthread, |
1459 | but I doubt it's worth the effort. */ | |
c11d79f2 KB |
1460 | |
1461 | static void | |
647478e0 | 1462 | store_regs_user_thread (const struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1463 | { |
c7f30c7a UW |
1464 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1465 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
c11d79f2 KB |
1466 | int status, i; |
1467 | pthdb_context_t ctx; | |
61c5da0b KB |
1468 | uint32_t int32; |
1469 | uint64_t int64; | |
1470 | double dbl; | |
c11d79f2 | 1471 | |
8e2c28d4 | 1472 | if (debug_aix_thread) |
0fe7bf7b | 1473 | fprintf_unfiltered (gdb_stdlog, |
206d3d3c | 1474 | "store_regs_user_thread %lx\n", (long) pdtid); |
c11d79f2 | 1475 | |
0fe7bf7b MS |
1476 | /* Retrieve the thread's current context for its non-register |
1477 | values. */ | |
c11d79f2 KB |
1478 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1479 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1480 | error (_("aix-thread: store_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1481 | pd_status2str (status)); |
c11d79f2 | 1482 | |
61c5da0b | 1483 | /* Collect general-purpose register values from the regcache. */ |
c11d79f2 | 1484 | |
063715bf | 1485 | for (i = 0; i < ppc_num_gprs; i++) |
672c9795 YQ |
1486 | if (REG_VALID == regcache_register_status (regcache, |
1487 | tdep->ppc_gp0_regnum + i)) | |
cbe92db4 KB |
1488 | { |
1489 | if (arch64) | |
1490 | { | |
647478e0 | 1491 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + i, |
822c9732 | 1492 | (void *) &int64); |
cbe92db4 KB |
1493 | ctx.gpr[i] = int64; |
1494 | } | |
1495 | else | |
1496 | { | |
647478e0 | 1497 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + i, |
822c9732 | 1498 | (void *) &int32); |
cbe92db4 KB |
1499 | ctx.gpr[i] = int32; |
1500 | } | |
1501 | } | |
c11d79f2 | 1502 | |
61c5da0b | 1503 | /* Collect floating-point register values from the regcache. */ |
c7f30c7a | 1504 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1505 | fill_fprs (regcache, ctx.fpr); |
c11d79f2 | 1506 | |
61c5da0b KB |
1507 | /* Special registers (always kept in ctx as 64 bits). */ |
1508 | if (arch64) | |
1509 | { | |
647478e0 UW |
1510 | fill_sprs64 (regcache, &ctx.iar, &ctx.msr, &ctx.cr, &ctx.lr, &ctx.ctr, |
1511 | &ctx.xer, &ctx.fpscr); | |
61c5da0b KB |
1512 | } |
1513 | else | |
1514 | { | |
1515 | /* Problem: ctx.iar etc. are 64 bits, but raw_registers are 32. | |
0d16ee5d UW |
1516 | Solution: use 32-bit temp variables. */ |
1517 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1518 | tmp_fpscr; | |
61c5da0b | 1519 | |
647478e0 UW |
1520 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, &tmp_ctr, |
1521 | &tmp_xer, &tmp_fpscr); | |
672c9795 YQ |
1522 | if (REG_VALID == regcache_register_status (regcache, |
1523 | gdbarch_pc_regnum (gdbarch))) | |
cbe92db4 | 1524 | ctx.iar = tmp_iar; |
672c9795 | 1525 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ps_regnum)) |
cbe92db4 | 1526 | ctx.msr = tmp_msr; |
672c9795 | 1527 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_cr_regnum)) |
cbe92db4 | 1528 | ctx.cr = tmp_cr; |
672c9795 | 1529 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_lr_regnum)) |
cbe92db4 | 1530 | ctx.lr = tmp_lr; |
672c9795 YQ |
1531 | if (REG_VALID == regcache_register_status (regcache, |
1532 | tdep->ppc_ctr_regnum)) | |
cbe92db4 | 1533 | ctx.ctr = tmp_ctr; |
672c9795 YQ |
1534 | if (REG_VALID == regcache_register_status (regcache, |
1535 | tdep->ppc_xer_regnum)) | |
cbe92db4 | 1536 | ctx.xer = tmp_xer; |
672c9795 YQ |
1537 | if (REG_VALID == regcache_register_status (regcache, |
1538 | tdep->ppc_xer_regnum)) | |
0e061eef | 1539 | ctx.fpscr = tmp_fpscr; |
61c5da0b | 1540 | } |
c11d79f2 KB |
1541 | |
1542 | status = pthdb_pthread_setcontext (pd_session, pdtid, &ctx); | |
1543 | if (status != PTHDB_SUCCESS) | |
0963b4bd MS |
1544 | error (_("aix-thread: store_registers: " |
1545 | "pthdb_pthread_setcontext returned %s"), | |
14fa3751 | 1546 | pd_status2str (status)); |
c11d79f2 KB |
1547 | } |
1548 | ||
0fe7bf7b MS |
1549 | /* Store register REGNO if != -1 or all registers otherwise into |
1550 | kernel thread TID. | |
c11d79f2 | 1551 | |
0fe7bf7b MS |
1552 | AIX provides a way to set all of a kernel thread's GPRs, FPRs, or |
1553 | SPRs, but there's no way to set individual registers within those | |
1554 | groups. Therefore, if REGNO != -1, this function stores an entire | |
1555 | group. */ | |
c11d79f2 KB |
1556 | |
1557 | static void | |
647478e0 UW |
1558 | store_regs_kernel_thread (const struct regcache *regcache, int regno, |
1559 | pthdb_tid_t tid) | |
c11d79f2 | 1560 | { |
c7f30c7a UW |
1561 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1562 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
063715bf JB |
1563 | uint64_t gprs64[ppc_num_gprs]; |
1564 | uint32_t gprs32[ppc_num_gprs]; | |
1565 | double fprs[ppc_num_fprs]; | |
c11d79f2 | 1566 | struct ptxsprs sprs64; |
61c5da0b KB |
1567 | struct ptsprs sprs32; |
1568 | int i; | |
c11d79f2 | 1569 | |
8e2c28d4 | 1570 | if (debug_aix_thread) |
206d3d3c KB |
1571 | fprintf_unfiltered (gdb_stdlog, |
1572 | "store_regs_kernel_thread tid=%lx regno=%d\n", | |
1573 | (long) tid, regno); | |
c11d79f2 | 1574 | |
0fe7bf7b | 1575 | /* General-purpose registers. */ |
daf6dc85 JB |
1576 | if (regno == -1 |
1577 | || (tdep->ppc_gp0_regnum <= regno | |
1578 | && regno < tdep->ppc_gp0_regnum + ppc_num_fprs)) | |
c11d79f2 | 1579 | { |
c11d79f2 | 1580 | if (arch64) |
61c5da0b | 1581 | { |
cbe92db4 KB |
1582 | /* Pre-fetch: some regs may not be in the cache. */ |
1583 | ptrace64aix (PTT_READ_GPRS, tid, (unsigned long) gprs64, 0, NULL); | |
647478e0 | 1584 | fill_gprs64 (regcache, gprs64); |
61c5da0b KB |
1585 | ptrace64aix (PTT_WRITE_GPRS, tid, (unsigned long) gprs64, 0, NULL); |
1586 | } | |
c11d79f2 | 1587 | else |
61c5da0b | 1588 | { |
cbe92db4 | 1589 | /* Pre-fetch: some regs may not be in the cache. */ |
fecf803e | 1590 | ptrace32 (PTT_READ_GPRS, tid, (addr_ptr) gprs32, 0, NULL); |
647478e0 | 1591 | fill_gprs32 (regcache, gprs32); |
fecf803e | 1592 | ptrace32 (PTT_WRITE_GPRS, tid, (addr_ptr) gprs32, 0, NULL); |
61c5da0b | 1593 | } |
c11d79f2 KB |
1594 | } |
1595 | ||
0fe7bf7b | 1596 | /* Floating-point registers. */ |
c11d79f2 | 1597 | |
c7f30c7a | 1598 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1599 | && (regno == -1 |
1600 | || (regno >= tdep->ppc_fp0_regnum | |
1601 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 | 1602 | { |
cbe92db4 | 1603 | /* Pre-fetch: some regs may not be in the cache. */ |
fecf803e | 1604 | ptrace32 (PTT_READ_FPRS, tid, (addr_ptr) fprs, 0, NULL); |
647478e0 | 1605 | fill_fprs (regcache, fprs); |
fecf803e | 1606 | ptrace32 (PTT_WRITE_FPRS, tid, (addr_ptr) fprs, 0, NULL); |
c11d79f2 KB |
1607 | } |
1608 | ||
0fe7bf7b | 1609 | /* Special-purpose registers. */ |
c11d79f2 | 1610 | |
9970f04b | 1611 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1612 | { |
1613 | if (arch64) | |
1614 | { | |
cbe92db4 | 1615 | /* Pre-fetch: some registers won't be in the cache. */ |
0fe7bf7b MS |
1616 | ptrace64aix (PTT_READ_SPRS, tid, |
1617 | (unsigned long) &sprs64, 0, NULL); | |
647478e0 UW |
1618 | fill_sprs64 (regcache, &sprs64.pt_iar, &sprs64.pt_msr, |
1619 | &sprs64.pt_cr, &sprs64.pt_lr, &sprs64.pt_ctr, | |
1620 | &sprs64.pt_xer, &sprs64.pt_fpscr); | |
0fe7bf7b MS |
1621 | ptrace64aix (PTT_WRITE_SPRS, tid, |
1622 | (unsigned long) &sprs64, 0, NULL); | |
c11d79f2 KB |
1623 | } |
1624 | else | |
1625 | { | |
0d16ee5d UW |
1626 | /* The contents of "struct ptspr" were declared as "unsigned |
1627 | long" up to AIX 5.2, but are "unsigned int" since 5.3. | |
1628 | Use temporaries to work around this problem. Also, add an | |
1629 | assert here to make sure we fail if the system header files | |
1630 | use "unsigned long", and the size of that type is not what | |
1631 | the headers expect. */ | |
1632 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1633 | tmp_fpscr; | |
1634 | ||
1635 | gdb_assert (sizeof (sprs32.pt_iar) == 4); | |
1636 | ||
cbe92db4 | 1637 | /* Pre-fetch: some registers won't be in the cache. */ |
fecf803e | 1638 | ptrace32 (PTT_READ_SPRS, tid, (addr_ptr) &sprs32, 0, NULL); |
c11d79f2 | 1639 | |
647478e0 UW |
1640 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, |
1641 | &tmp_ctr, &tmp_xer, &tmp_fpscr); | |
0d16ee5d UW |
1642 | |
1643 | sprs32.pt_iar = tmp_iar; | |
1644 | sprs32.pt_msr = tmp_msr; | |
1645 | sprs32.pt_cr = tmp_cr; | |
1646 | sprs32.pt_lr = tmp_lr; | |
1647 | sprs32.pt_ctr = tmp_ctr; | |
1648 | sprs32.pt_xer = tmp_xer; | |
1649 | sprs32.pt_fpscr = tmp_fpscr; | |
c11d79f2 | 1650 | |
f1a91342 | 1651 | if (tdep->ppc_mq_regnum >= 0) |
672c9795 YQ |
1652 | if (REG_VALID == regcache_register_status (regcache, |
1653 | tdep->ppc_mq_regnum)) | |
647478e0 | 1654 | regcache_raw_collect (regcache, tdep->ppc_mq_regnum, |
822c9732 | 1655 | &sprs32.pt_mq); |
c11d79f2 | 1656 | |
fecf803e | 1657 | ptrace32 (PTT_WRITE_SPRS, tid, (addr_ptr) &sprs32, 0, NULL); |
c11d79f2 KB |
1658 | } |
1659 | } | |
1660 | } | |
1661 | ||
0fe7bf7b MS |
1662 | /* Store gdb's current view of the register set into the |
1663 | thread/process specified by inferior_ptid. */ | |
c11d79f2 KB |
1664 | |
1665 | static void | |
c7660128 JB |
1666 | aix_thread_store_registers (struct target_ops *ops, |
1667 | struct regcache *regcache, int regno) | |
c11d79f2 KB |
1668 | { |
1669 | struct thread_info *thread; | |
1670 | pthdb_tid_t tid; | |
d30acaa7 | 1671 | struct target_ops *beneath = find_target_beneath (ops); |
c11d79f2 KB |
1672 | |
1673 | if (!PD_TID (inferior_ptid)) | |
d30acaa7 | 1674 | beneath->to_store_registers (beneath, regcache, regno); |
c11d79f2 KB |
1675 | else |
1676 | { | |
e09875d4 | 1677 | thread = find_thread_ptid (inferior_ptid); |
c11d79f2 KB |
1678 | tid = thread->private->tid; |
1679 | ||
1680 | if (tid == PTHDB_INVALID_TID) | |
56be3814 | 1681 | store_regs_user_thread (regcache, thread->private->pdtid); |
c11d79f2 | 1682 | else |
56be3814 | 1683 | store_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1684 | } |
1685 | } | |
1686 | ||
037a727e UW |
1687 | /* Attempt a transfer all LEN bytes starting at OFFSET between the |
1688 | inferior's OBJECT:ANNEX space and GDB's READBUF/WRITEBUF buffer. | |
1689 | Return the number of bytes actually transferred. */ | |
1690 | ||
1691 | static LONGEST | |
1692 | aix_thread_xfer_partial (struct target_ops *ops, enum target_object object, | |
1693 | const char *annex, gdb_byte *readbuf, | |
0963b4bd MS |
1694 | const gdb_byte *writebuf, |
1695 | ULONGEST offset, LONGEST len) | |
c11d79f2 | 1696 | { |
037a727e UW |
1697 | struct cleanup *old_chain = save_inferior_ptid (); |
1698 | LONGEST xfer; | |
d30acaa7 | 1699 | struct target_ops *beneath = find_target_beneath (ops); |
14fa3751 KB |
1700 | |
1701 | inferior_ptid = pid_to_ptid (PIDGET (inferior_ptid)); | |
d30acaa7 JB |
1702 | xfer = beneath->to_xfer_partial (beneath, object, annex, |
1703 | readbuf, writebuf, offset, len); | |
c11d79f2 | 1704 | |
037a727e UW |
1705 | do_cleanups (old_chain); |
1706 | return xfer; | |
c11d79f2 KB |
1707 | } |
1708 | ||
0fe7bf7b | 1709 | /* Clean up after the inferior exits. */ |
c11d79f2 KB |
1710 | |
1711 | static void | |
136d6dae | 1712 | aix_thread_mourn_inferior (struct target_ops *ops) |
c11d79f2 | 1713 | { |
d30acaa7 JB |
1714 | struct target_ops *beneath = find_target_beneath (ops); |
1715 | ||
c11d79f2 | 1716 | pd_deactivate (); |
d30acaa7 | 1717 | beneath->to_mourn_inferior (beneath); |
c11d79f2 KB |
1718 | } |
1719 | ||
0fe7bf7b | 1720 | /* Return whether thread PID is still valid. */ |
c11d79f2 KB |
1721 | |
1722 | static int | |
c7660128 | 1723 | aix_thread_thread_alive (struct target_ops *ops, ptid_t ptid) |
c11d79f2 | 1724 | { |
7fc0c7b5 | 1725 | struct target_ops *beneath = find_target_beneath (ops); |
d30acaa7 | 1726 | |
c11d79f2 | 1727 | if (!PD_TID (ptid)) |
d30acaa7 | 1728 | return beneath->to_thread_alive (beneath, ptid); |
c11d79f2 | 1729 | |
0fe7bf7b MS |
1730 | /* We update the thread list every time the child stops, so all |
1731 | valid threads should be in the thread list. */ | |
c11d79f2 KB |
1732 | return in_thread_list (ptid); |
1733 | } | |
1734 | ||
0fe7bf7b MS |
1735 | /* Return a printable representation of composite PID for use in |
1736 | "info threads" output. */ | |
c11d79f2 KB |
1737 | |
1738 | static char * | |
117de6a9 | 1739 | aix_thread_pid_to_str (struct target_ops *ops, ptid_t ptid) |
c11d79f2 KB |
1740 | { |
1741 | static char *ret = NULL; | |
7fc0c7b5 | 1742 | struct target_ops *beneath = find_target_beneath (ops); |
c11d79f2 KB |
1743 | |
1744 | if (!PD_TID (ptid)) | |
d30acaa7 | 1745 | return beneath->to_pid_to_str (beneath, ptid); |
c11d79f2 KB |
1746 | |
1747 | /* Free previous return value; a new one will be allocated by | |
b435e160 | 1748 | xstrprintf(). */ |
c11d79f2 KB |
1749 | xfree (ret); |
1750 | ||
edefbb7c | 1751 | ret = xstrprintf (_("Thread %ld"), ptid_get_tid (ptid)); |
c11d79f2 KB |
1752 | return ret; |
1753 | } | |
1754 | ||
0fe7bf7b MS |
1755 | /* Return a printable representation of extra information about |
1756 | THREAD, for use in "info threads" output. */ | |
c11d79f2 KB |
1757 | |
1758 | static char * | |
206d3d3c | 1759 | aix_thread_extra_thread_info (struct thread_info *thread) |
c11d79f2 KB |
1760 | { |
1761 | struct ui_file *buf; | |
1762 | int status; | |
1763 | pthdb_pthread_t pdtid; | |
1764 | pthdb_tid_t tid; | |
1765 | pthdb_state_t state; | |
1766 | pthdb_suspendstate_t suspendstate; | |
1767 | pthdb_detachstate_t detachstate; | |
1768 | int cancelpend; | |
c11d79f2 KB |
1769 | static char *ret = NULL; |
1770 | ||
1771 | if (!PD_TID (thread->ptid)) | |
1772 | return NULL; | |
1773 | ||
1774 | buf = mem_fileopen (); | |
1775 | ||
1776 | pdtid = thread->private->pdtid; | |
1777 | tid = thread->private->tid; | |
1778 | ||
1779 | if (tid != PTHDB_INVALID_TID) | |
edefbb7c | 1780 | /* i18n: Like "thread-identifier %d, [state] running, suspended" */ |
0d16ee5d | 1781 | fprintf_unfiltered (buf, _("tid %d"), (int)tid); |
c11d79f2 KB |
1782 | |
1783 | status = pthdb_pthread_state (pd_session, pdtid, &state); | |
1784 | if (status != PTHDB_SUCCESS) | |
1785 | state = PST_NOTSUP; | |
1786 | fprintf_unfiltered (buf, ", %s", state2str (state)); | |
1787 | ||
0fe7bf7b MS |
1788 | status = pthdb_pthread_suspendstate (pd_session, pdtid, |
1789 | &suspendstate); | |
c11d79f2 | 1790 | if (status == PTHDB_SUCCESS && suspendstate == PSS_SUSPENDED) |
edefbb7c AC |
1791 | /* i18n: Like "Thread-Id %d, [state] running, suspended" */ |
1792 | fprintf_unfiltered (buf, _(", suspended")); | |
c11d79f2 | 1793 | |
0fe7bf7b MS |
1794 | status = pthdb_pthread_detachstate (pd_session, pdtid, |
1795 | &detachstate); | |
c11d79f2 | 1796 | if (status == PTHDB_SUCCESS && detachstate == PDS_DETACHED) |
edefbb7c AC |
1797 | /* i18n: Like "Thread-Id %d, [state] running, detached" */ |
1798 | fprintf_unfiltered (buf, _(", detached")); | |
c11d79f2 KB |
1799 | |
1800 | pthdb_pthread_cancelpend (pd_session, pdtid, &cancelpend); | |
1801 | if (status == PTHDB_SUCCESS && cancelpend) | |
edefbb7c AC |
1802 | /* i18n: Like "Thread-Id %d, [state] running, cancel pending" */ |
1803 | fprintf_unfiltered (buf, _(", cancel pending")); | |
c11d79f2 KB |
1804 | |
1805 | ui_file_write (buf, "", 1); | |
1806 | ||
1807 | xfree (ret); /* Free old buffer. */ | |
1808 | ||
759ef836 | 1809 | ret = ui_file_xstrdup (buf, NULL); |
c11d79f2 KB |
1810 | ui_file_delete (buf); |
1811 | ||
1812 | return ret; | |
1813 | } | |
1814 | ||
c7660128 JB |
1815 | static ptid_t |
1816 | aix_thread_get_ada_task_ptid (long lwp, long thread) | |
1817 | { | |
1818 | return ptid_build (ptid_get_pid (inferior_ptid), 0, thread); | |
1819 | } | |
1820 | ||
206d3d3c | 1821 | /* Initialize target aix_thread_ops. */ |
c11d79f2 KB |
1822 | |
1823 | static void | |
206d3d3c | 1824 | init_aix_thread_ops (void) |
c11d79f2 | 1825 | { |
783425fc PA |
1826 | aix_thread_ops.to_shortname = "aix-threads"; |
1827 | aix_thread_ops.to_longname = _("AIX pthread support"); | |
1828 | aix_thread_ops.to_doc = _("AIX pthread support"); | |
1829 | ||
1830 | aix_thread_ops.to_attach = aix_thread_attach; | |
1831 | aix_thread_ops.to_detach = aix_thread_detach; | |
1832 | aix_thread_ops.to_resume = aix_thread_resume; | |
1833 | aix_thread_ops.to_wait = aix_thread_wait; | |
1834 | aix_thread_ops.to_fetch_registers = aix_thread_fetch_registers; | |
1835 | aix_thread_ops.to_store_registers = aix_thread_store_registers; | |
1836 | aix_thread_ops.to_xfer_partial = aix_thread_xfer_partial; | |
206d3d3c | 1837 | /* No need for aix_thread_ops.to_create_inferior, because we activate thread |
0fe7bf7b | 1838 | debugging when the inferior reaches pd_brk_addr. */ |
783425fc PA |
1839 | aix_thread_ops.to_mourn_inferior = aix_thread_mourn_inferior; |
1840 | aix_thread_ops.to_thread_alive = aix_thread_thread_alive; | |
1841 | aix_thread_ops.to_pid_to_str = aix_thread_pid_to_str; | |
1842 | aix_thread_ops.to_extra_thread_info = aix_thread_extra_thread_info; | |
1843 | aix_thread_ops.to_get_ada_task_ptid = aix_thread_get_ada_task_ptid; | |
1844 | aix_thread_ops.to_stratum = thread_stratum; | |
1845 | aix_thread_ops.to_magic = OPS_MAGIC; | |
c11d79f2 KB |
1846 | } |
1847 | ||
1848 | /* Module startup initialization function, automagically called by | |
0fe7bf7b | 1849 | init.c. */ |
c11d79f2 | 1850 | |
e1aca11e JB |
1851 | void _initialize_aix_thread (void); |
1852 | ||
c11d79f2 KB |
1853 | void |
1854 | _initialize_aix_thread (void) | |
1855 | { | |
206d3d3c | 1856 | init_aix_thread_ops (); |
12070676 | 1857 | complete_target_initialization (&aix_thread_ops); |
c11d79f2 | 1858 | |
0fe7bf7b | 1859 | /* Notice when object files get loaded and unloaded. */ |
06d3b283 | 1860 | observer_attach_new_objfile (new_objfile); |
8e2c28d4 | 1861 | |
577b7047 | 1862 | add_setshow_boolean_cmd ("aix-thread", class_maintenance, &debug_aix_thread, |
0963b4bd MS |
1863 | _("Set debugging of AIX thread module."), |
1864 | _("Show debugging of AIX thread module."), | |
1865 | _("Enables debugging output (used to debug GDB)."), | |
1866 | NULL, NULL, | |
1867 | /* FIXME: i18n: Debugging of AIX thread | |
1868 | module is \"%d\". */ | |
1869 | &setdebuglist, &showdebuglist); | |
c11d79f2 | 1870 | } |