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1 | /* Low level interface for debugging AIX 4.3+ pthreads. |
2 | ||
ecd75fc8 | 3 | Copyright (C) 1999-2014 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" |
0e9f083f | 50 | #include <string.h> |
06d3b283 | 51 | #include "observer.h" |
77e371c0 | 52 | #include "objfiles.h" |
c11d79f2 | 53 | |
c11d79f2 KB |
54 | #include <procinfo.h> |
55 | #include <sys/types.h> | |
56 | #include <sys/ptrace.h> | |
57 | #include <sys/reg.h> | |
c11d79f2 KB |
58 | #include <sched.h> |
59 | #include <sys/pthdebug.h> | |
60 | ||
d645e32e | 61 | #if !HAVE_DECL_GETTHRDS |
eff44fea | 62 | extern int getthrds (pid_t, struct thrdsinfo64 *, int, tid_t *, int); |
d645e32e JB |
63 | #endif |
64 | ||
0fe7bf7b | 65 | /* Whether to emit debugging output. */ |
8e2c28d4 | 66 | static int debug_aix_thread; |
c11d79f2 | 67 | |
0fe7bf7b | 68 | /* In AIX 5.1, functions use pthdb_tid_t instead of tid_t. */ |
c11d79f2 KB |
69 | #ifndef PTHDB_VERSION_3 |
70 | #define pthdb_tid_t tid_t | |
71 | #endif | |
72 | ||
0fe7bf7b | 73 | /* Return whether to treat PID as a debuggable thread id. */ |
c11d79f2 KB |
74 | |
75 | #define PD_TID(ptid) (pd_active && ptid_get_tid (ptid) != 0) | |
76 | ||
c11d79f2 | 77 | /* pthdb_user_t value that we pass to pthdb functions. 0 causes |
0fe7bf7b | 78 | PTHDB_BAD_USER errors, so use 1. */ |
c11d79f2 KB |
79 | |
80 | #define PD_USER 1 | |
81 | ||
0fe7bf7b | 82 | /* Success and failure values returned by pthdb callbacks. */ |
c11d79f2 KB |
83 | |
84 | #define PDC_SUCCESS PTHDB_SUCCESS | |
85 | #define PDC_FAILURE PTHDB_CALLBACK | |
86 | ||
0fe7bf7b | 87 | /* Private data attached to each element in GDB's thread list. */ |
c11d79f2 KB |
88 | |
89 | struct private_thread_info { | |
0fe7bf7b | 90 | pthdb_pthread_t pdtid; /* thread's libpthdebug id */ |
c11d79f2 KB |
91 | pthdb_tid_t tid; /* kernel thread id */ |
92 | }; | |
93 | ||
0fe7bf7b | 94 | /* Information about a thread of which libpthdebug is aware. */ |
c11d79f2 KB |
95 | |
96 | struct pd_thread { | |
97 | pthdb_pthread_t pdtid; | |
98 | pthread_t pthid; | |
99 | pthdb_tid_t tid; | |
100 | }; | |
101 | ||
0fe7bf7b | 102 | /* This module's target-specific operations, active while pd_able is true. */ |
c11d79f2 | 103 | |
206d3d3c | 104 | static struct target_ops aix_thread_ops; |
c11d79f2 | 105 | |
0fe7bf7b MS |
106 | /* Address of the function that libpthread will call when libpthdebug |
107 | is ready to be initialized. */ | |
c11d79f2 KB |
108 | |
109 | static CORE_ADDR pd_brk_addr; | |
110 | ||
0fe7bf7b | 111 | /* Whether the current application is debuggable by pthdb. */ |
c11d79f2 KB |
112 | |
113 | static int pd_able = 0; | |
114 | ||
0fe7bf7b | 115 | /* Whether a threaded application is being debugged. */ |
c11d79f2 KB |
116 | |
117 | static int pd_active = 0; | |
118 | ||
0fe7bf7b MS |
119 | /* Whether the current architecture is 64-bit. |
120 | Only valid when pd_able is true. */ | |
c11d79f2 KB |
121 | |
122 | static int arch64; | |
123 | ||
0fe7bf7b | 124 | /* Forward declarations for pthdb callbacks. */ |
c11d79f2 KB |
125 | |
126 | static int pdc_symbol_addrs (pthdb_user_t, pthdb_symbol_t *, int); | |
127 | static int pdc_read_data (pthdb_user_t, void *, pthdb_addr_t, size_t); | |
128 | static int pdc_write_data (pthdb_user_t, void *, pthdb_addr_t, size_t); | |
129 | static int pdc_read_regs (pthdb_user_t user, pthdb_tid_t tid, | |
0fe7bf7b MS |
130 | unsigned long long flags, |
131 | pthdb_context_t *context); | |
c11d79f2 | 132 | static int pdc_write_regs (pthdb_user_t user, pthdb_tid_t tid, |
0fe7bf7b MS |
133 | unsigned long long flags, |
134 | pthdb_context_t *context); | |
c11d79f2 KB |
135 | static int pdc_alloc (pthdb_user_t, size_t, void **); |
136 | static int pdc_realloc (pthdb_user_t, void *, size_t, void **); | |
137 | static int pdc_dealloc (pthdb_user_t, void *); | |
138 | ||
0fe7bf7b | 139 | /* pthdb callbacks. */ |
c11d79f2 KB |
140 | |
141 | static pthdb_callbacks_t pd_callbacks = { | |
142 | pdc_symbol_addrs, | |
143 | pdc_read_data, | |
144 | pdc_write_data, | |
145 | pdc_read_regs, | |
146 | pdc_write_regs, | |
147 | pdc_alloc, | |
148 | pdc_realloc, | |
149 | pdc_dealloc, | |
150 | NULL | |
151 | }; | |
152 | ||
0fe7bf7b | 153 | /* Current pthdb session. */ |
c11d79f2 KB |
154 | |
155 | static pthdb_session_t pd_session; | |
156 | ||
0fe7bf7b MS |
157 | /* Return a printable representation of pthdebug function return |
158 | STATUS. */ | |
c11d79f2 KB |
159 | |
160 | static char * | |
161 | pd_status2str (int status) | |
162 | { | |
163 | switch (status) | |
164 | { | |
165 | case PTHDB_SUCCESS: return "SUCCESS"; | |
166 | case PTHDB_NOSYS: return "NOSYS"; | |
167 | case PTHDB_NOTSUP: return "NOTSUP"; | |
168 | case PTHDB_BAD_VERSION: return "BAD_VERSION"; | |
169 | case PTHDB_BAD_USER: return "BAD_USER"; | |
170 | case PTHDB_BAD_SESSION: return "BAD_SESSION"; | |
171 | case PTHDB_BAD_MODE: return "BAD_MODE"; | |
172 | case PTHDB_BAD_FLAGS: return "BAD_FLAGS"; | |
173 | case PTHDB_BAD_CALLBACK: return "BAD_CALLBACK"; | |
174 | case PTHDB_BAD_POINTER: return "BAD_POINTER"; | |
175 | case PTHDB_BAD_CMD: return "BAD_CMD"; | |
176 | case PTHDB_BAD_PTHREAD: return "BAD_PTHREAD"; | |
177 | case PTHDB_BAD_ATTR: return "BAD_ATTR"; | |
178 | case PTHDB_BAD_MUTEX: return "BAD_MUTEX"; | |
179 | case PTHDB_BAD_MUTEXATTR: return "BAD_MUTEXATTR"; | |
180 | case PTHDB_BAD_COND: return "BAD_COND"; | |
181 | case PTHDB_BAD_CONDATTR: return "BAD_CONDATTR"; | |
182 | case PTHDB_BAD_RWLOCK: return "BAD_RWLOCK"; | |
183 | case PTHDB_BAD_RWLOCKATTR: return "BAD_RWLOCKATTR"; | |
184 | case PTHDB_BAD_KEY: return "BAD_KEY"; | |
185 | case PTHDB_BAD_PTID: return "BAD_PTID"; | |
186 | case PTHDB_BAD_TID: return "BAD_TID"; | |
187 | case PTHDB_CALLBACK: return "CALLBACK"; | |
188 | case PTHDB_CONTEXT: return "CONTEXT"; | |
189 | case PTHDB_HELD: return "HELD"; | |
190 | case PTHDB_NOT_HELD: return "NOT_HELD"; | |
191 | case PTHDB_MEMORY: return "MEMORY"; | |
192 | case PTHDB_NOT_PTHREADED: return "NOT_PTHREADED"; | |
193 | case PTHDB_SYMBOL: return "SYMBOL"; | |
194 | case PTHDB_NOT_AVAIL: return "NOT_AVAIL"; | |
195 | case PTHDB_INTERNAL: return "INTERNAL"; | |
196 | default: return "UNKNOWN"; | |
197 | } | |
198 | } | |
199 | ||
0fe7bf7b MS |
200 | /* A call to ptrace(REQ, ID, ...) just returned RET. Check for |
201 | exceptional conditions and either return nonlocally or else return | |
202 | 1 for success and 0 for failure. */ | |
c11d79f2 KB |
203 | |
204 | static int | |
205 | ptrace_check (int req, int id, int ret) | |
206 | { | |
207 | if (ret == 0 && !errno) | |
208 | return 1; | |
209 | ||
0fe7bf7b MS |
210 | /* According to ptrace(2), ptrace may fail with EPERM if "the |
211 | Identifier parameter corresponds to a kernel thread which is | |
212 | stopped in kernel mode and whose computational state cannot be | |
213 | read or written." This happens quite often with register reads. */ | |
c11d79f2 KB |
214 | |
215 | switch (req) | |
216 | { | |
217 | case PTT_READ_GPRS: | |
218 | case PTT_READ_FPRS: | |
219 | case PTT_READ_SPRS: | |
220 | if (ret == -1 && errno == EPERM) | |
42cc437f KB |
221 | { |
222 | if (debug_aix_thread) | |
0fe7bf7b | 223 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 224 | "ptrace (%d, %d) = %d (errno = %d)\n", |
42cc437f KB |
225 | req, id, ret, errno); |
226 | return ret == -1 ? 0 : 1; | |
227 | } | |
c11d79f2 KB |
228 | break; |
229 | } | |
edefbb7c | 230 | error (_("aix-thread: ptrace (%d, %d) returned %d (errno = %d %s)"), |
be006b8b | 231 | req, id, ret, errno, safe_strerror (errno)); |
0fe7bf7b | 232 | return 0; /* Not reached. */ |
c11d79f2 KB |
233 | } |
234 | ||
fecf803e UW |
235 | /* Call ptracex (REQ, ID, ADDR, DATA, BUF) or |
236 | ptrace64 (REQ, ID, ADDR, DATA, BUF) if HAVE_PTRACE64. | |
237 | Return success. */ | |
238 | ||
239 | #ifdef HAVE_PTRACE64 | |
240 | # define ptracex(request, pid, addr, data, buf) \ | |
241 | ptrace64 (request, pid, addr, data, buf) | |
242 | #endif | |
c11d79f2 KB |
243 | |
244 | static int | |
245 | ptrace64aix (int req, int id, long long addr, int data, int *buf) | |
246 | { | |
247 | errno = 0; | |
248 | return ptrace_check (req, id, ptracex (req, id, addr, data, buf)); | |
249 | } | |
250 | ||
fecf803e UW |
251 | /* Call ptrace (REQ, ID, ADDR, DATA, BUF) or |
252 | ptrace64 (REQ, ID, ADDR, DATA, BUF) if HAVE_PTRACE64. | |
253 | Return success. */ | |
254 | ||
255 | #ifdef HAVE_PTRACE64 | |
256 | # define ptrace(request, pid, addr, data, buf) \ | |
257 | ptrace64 (request, pid, addr, data, buf) | |
258 | # define addr_ptr long long | |
259 | #else | |
260 | # define addr_ptr int * | |
261 | #endif | |
c11d79f2 KB |
262 | |
263 | static int | |
fecf803e | 264 | ptrace32 (int req, int id, addr_ptr addr, int data, int *buf) |
c11d79f2 KB |
265 | { |
266 | errno = 0; | |
0fe7bf7b | 267 | return ptrace_check (req, id, |
26f0edc1 | 268 | ptrace (req, id, addr, data, buf)); |
c11d79f2 KB |
269 | } |
270 | ||
0fe7bf7b MS |
271 | /* If *PIDP is a composite process/thread id, convert it to a |
272 | process id. */ | |
c11d79f2 KB |
273 | |
274 | static void | |
275 | pid_to_prc (ptid_t *ptidp) | |
276 | { | |
277 | ptid_t ptid; | |
278 | ||
279 | ptid = *ptidp; | |
280 | if (PD_TID (ptid)) | |
dfd4cc63 | 281 | *ptidp = pid_to_ptid (ptid_get_pid (ptid)); |
c11d79f2 KB |
282 | } |
283 | ||
0fe7bf7b MS |
284 | /* pthdb callback: for <i> from 0 to COUNT, set SYMBOLS[<i>].addr to |
285 | the address of SYMBOLS[<i>].name. */ | |
c11d79f2 KB |
286 | |
287 | static int | |
288 | pdc_symbol_addrs (pthdb_user_t user, pthdb_symbol_t *symbols, int count) | |
289 | { | |
3b7344d5 | 290 | struct bound_minimal_symbol ms; |
c11d79f2 KB |
291 | int i; |
292 | char *name; | |
293 | ||
8e2c28d4 KB |
294 | if (debug_aix_thread) |
295 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 296 | "pdc_symbol_addrs (user = %ld, symbols = 0x%lx, count = %d)\n", |
8e2c28d4 | 297 | user, (long) symbols, count); |
c11d79f2 KB |
298 | |
299 | for (i = 0; i < count; i++) | |
300 | { | |
301 | name = symbols[i].name; | |
8e2c28d4 | 302 | if (debug_aix_thread) |
0fe7bf7b | 303 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 304 | " symbols[%d].name = \"%s\"\n", i, name); |
c11d79f2 KB |
305 | |
306 | if (!*name) | |
307 | symbols[i].addr = 0; | |
308 | else | |
309 | { | |
3b7344d5 TT |
310 | ms = lookup_minimal_symbol (name, NULL, NULL); |
311 | if (ms.minsym == NULL) | |
c11d79f2 | 312 | { |
8e2c28d4 | 313 | if (debug_aix_thread) |
27bae383 | 314 | fprintf_unfiltered (gdb_stdlog, " returning PDC_FAILURE\n"); |
c11d79f2 KB |
315 | return PDC_FAILURE; |
316 | } | |
77e371c0 | 317 | symbols[i].addr = BMSYMBOL_VALUE_ADDRESS (ms); |
c11d79f2 | 318 | } |
8e2c28d4 | 319 | if (debug_aix_thread) |
27bae383 | 320 | fprintf_unfiltered (gdb_stdlog, " symbols[%d].addr = %s\n", |
bb599908 | 321 | i, hex_string (symbols[i].addr)); |
c11d79f2 | 322 | } |
8e2c28d4 | 323 | if (debug_aix_thread) |
27bae383 | 324 | fprintf_unfiltered (gdb_stdlog, " returning PDC_SUCCESS\n"); |
c11d79f2 KB |
325 | return PDC_SUCCESS; |
326 | } | |
327 | ||
0fe7bf7b MS |
328 | /* Read registers call back function should be able to read the |
329 | context information of a debuggee kernel thread from an active | |
330 | process or from a core file. The information should be formatted | |
331 | in context64 form for both 32-bit and 64-bit process. | |
332 | If successful return 0, else non-zero is returned. */ | |
333 | ||
c11d79f2 KB |
334 | static int |
335 | pdc_read_regs (pthdb_user_t user, | |
336 | pthdb_tid_t tid, | |
337 | unsigned long long flags, | |
338 | pthdb_context_t *context) | |
339 | { | |
0fe7bf7b MS |
340 | /* This function doesn't appear to be used, so we could probably |
341 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
342 | complain and several thread debug functions will fail. In case | |
343 | this is needed, I have implemented what I think it should do, | |
344 | however this code is untested. */ | |
345 | ||
063715bf JB |
346 | uint64_t gprs64[ppc_num_gprs]; |
347 | uint32_t gprs32[ppc_num_gprs]; | |
348 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
349 | struct ptxsprs sprs64; |
350 | struct ptsprs sprs32; | |
351 | ||
8e2c28d4 | 352 | if (debug_aix_thread) |
27bae383 | 353 | fprintf_unfiltered (gdb_stdlog, "pdc_read_regs tid=%d flags=%s\n", |
bb599908 | 354 | (int) tid, hex_string (flags)); |
c11d79f2 | 355 | |
0fe7bf7b | 356 | /* General-purpose registers. */ |
c11d79f2 KB |
357 | if (flags & PTHDB_FLAG_GPRS) |
358 | { | |
359 | if (arch64) | |
360 | { | |
0fe7bf7b MS |
361 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
362 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 KB |
363 | memset (gprs64, 0, sizeof (gprs64)); |
364 | memcpy (context->gpr, gprs64, sizeof(gprs64)); | |
365 | } | |
366 | else | |
367 | { | |
3b631e37 | 368 | if (!ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL)) |
c11d79f2 KB |
369 | memset (gprs32, 0, sizeof (gprs32)); |
370 | memcpy (context->gpr, gprs32, sizeof(gprs32)); | |
371 | } | |
372 | } | |
373 | ||
0fe7bf7b | 374 | /* Floating-point registers. */ |
c11d79f2 KB |
375 | if (flags & PTHDB_FLAG_FPRS) |
376 | { | |
3b631e37 | 377 | if (!ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL)) |
c11d79f2 | 378 | memset (fprs, 0, sizeof (fprs)); |
46bba1ef | 379 | memcpy (context->fpr, fprs, sizeof(fprs)); |
c11d79f2 KB |
380 | } |
381 | ||
0fe7bf7b | 382 | /* Special-purpose registers. */ |
c11d79f2 KB |
383 | if (flags & PTHDB_FLAG_SPRS) |
384 | { | |
385 | if (arch64) | |
386 | { | |
0fe7bf7b MS |
387 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
388 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 KB |
389 | memset (&sprs64, 0, sizeof (sprs64)); |
390 | memcpy (&context->msr, &sprs64, sizeof(sprs64)); | |
391 | } | |
392 | else | |
393 | { | |
3b631e37 | 394 | if (!ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL)) |
c11d79f2 KB |
395 | memset (&sprs32, 0, sizeof (sprs32)); |
396 | memcpy (&context->msr, &sprs32, sizeof(sprs32)); | |
397 | } | |
398 | } | |
399 | return 0; | |
400 | } | |
401 | ||
0fe7bf7b | 402 | /* Write register function should be able to write requested context |
0963b4bd | 403 | information to specified debuggee's kernel thread id. |
0fe7bf7b MS |
404 | If successful return 0, else non-zero is returned. */ |
405 | ||
c11d79f2 KB |
406 | static int |
407 | pdc_write_regs (pthdb_user_t user, | |
408 | pthdb_tid_t tid, | |
409 | unsigned long long flags, | |
410 | pthdb_context_t *context) | |
411 | { | |
0fe7bf7b MS |
412 | /* This function doesn't appear to be used, so we could probably |
413 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
414 | complain and several thread debug functions will fail. In case | |
415 | this is needed, I have implemented what I think it should do, | |
416 | however this code is untested. */ | |
c11d79f2 | 417 | |
8e2c28d4 | 418 | if (debug_aix_thread) |
27bae383 | 419 | fprintf_unfiltered (gdb_stdlog, "pdc_write_regs tid=%d flags=%s\n", |
bb599908 | 420 | (int) tid, hex_string (flags)); |
c11d79f2 | 421 | |
0fe7bf7b | 422 | /* General-purpose registers. */ |
c11d79f2 KB |
423 | if (flags & PTHDB_FLAG_GPRS) |
424 | { | |
425 | if (arch64) | |
0fe7bf7b | 426 | ptrace64aix (PTT_WRITE_GPRS, tid, |
206d3d3c | 427 | (unsigned long) context->gpr, 0, NULL); |
c11d79f2 | 428 | else |
3b631e37 | 429 | ptrace32 (PTT_WRITE_GPRS, tid, (uintptr_t) context->gpr, 0, NULL); |
c11d79f2 KB |
430 | } |
431 | ||
0fe7bf7b | 432 | /* Floating-point registers. */ |
c11d79f2 KB |
433 | if (flags & PTHDB_FLAG_FPRS) |
434 | { | |
3b631e37 | 435 | ptrace32 (PTT_WRITE_FPRS, tid, (uintptr_t) context->fpr, 0, NULL); |
c11d79f2 KB |
436 | } |
437 | ||
0fe7bf7b | 438 | /* Special-purpose registers. */ |
c11d79f2 KB |
439 | if (flags & PTHDB_FLAG_SPRS) |
440 | { | |
441 | if (arch64) | |
442 | { | |
0fe7bf7b MS |
443 | ptrace64aix (PTT_WRITE_SPRS, tid, |
444 | (unsigned long) &context->msr, 0, NULL); | |
c11d79f2 KB |
445 | } |
446 | else | |
447 | { | |
3b631e37 | 448 | ptrace32 (PTT_WRITE_SPRS, tid, (uintptr_t) &context->msr, 0, NULL); |
c11d79f2 KB |
449 | } |
450 | } | |
451 | return 0; | |
452 | } | |
453 | ||
0fe7bf7b | 454 | /* pthdb callback: read LEN bytes from process ADDR into BUF. */ |
c11d79f2 KB |
455 | |
456 | static int | |
0fe7bf7b MS |
457 | pdc_read_data (pthdb_user_t user, void *buf, |
458 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
459 | { |
460 | int status, ret; | |
461 | ||
8e2c28d4 KB |
462 | if (debug_aix_thread) |
463 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 464 | "pdc_read_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 465 | user, (long) buf, hex_string (addr), len); |
c11d79f2 KB |
466 | |
467 | status = target_read_memory (addr, buf, len); | |
468 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; | |
469 | ||
8e2c28d4 | 470 | if (debug_aix_thread) |
27bae383 | 471 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", |
0fe7bf7b | 472 | status, pd_status2str (ret)); |
c11d79f2 KB |
473 | return ret; |
474 | } | |
475 | ||
0fe7bf7b | 476 | /* pthdb callback: write LEN bytes from BUF to process ADDR. */ |
c11d79f2 KB |
477 | |
478 | static int | |
0fe7bf7b MS |
479 | pdc_write_data (pthdb_user_t user, void *buf, |
480 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
481 | { |
482 | int status, ret; | |
483 | ||
8e2c28d4 KB |
484 | if (debug_aix_thread) |
485 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 486 | "pdc_write_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 487 | user, (long) buf, hex_string (addr), len); |
c11d79f2 KB |
488 | |
489 | status = target_write_memory (addr, buf, len); | |
490 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; | |
491 | ||
8e2c28d4 | 492 | if (debug_aix_thread) |
27bae383 | 493 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", status, |
8e2c28d4 | 494 | pd_status2str (ret)); |
c11d79f2 KB |
495 | return ret; |
496 | } | |
497 | ||
0fe7bf7b MS |
498 | /* pthdb callback: allocate a LEN-byte buffer and store a pointer to it |
499 | in BUFP. */ | |
c11d79f2 KB |
500 | |
501 | static int | |
502 | pdc_alloc (pthdb_user_t user, size_t len, void **bufp) | |
503 | { | |
8e2c28d4 KB |
504 | if (debug_aix_thread) |
505 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 506 | "pdc_alloc (user = %ld, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 507 | user, len, (long) bufp); |
c11d79f2 | 508 | *bufp = xmalloc (len); |
8e2c28d4 | 509 | if (debug_aix_thread) |
0fe7bf7b | 510 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 511 | " malloc returned 0x%lx\n", (long) *bufp); |
0fe7bf7b MS |
512 | |
513 | /* Note: xmalloc() can't return 0; therefore PDC_FAILURE will never | |
514 | be returned. */ | |
515 | ||
c11d79f2 KB |
516 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
517 | } | |
518 | ||
0fe7bf7b MS |
519 | /* pthdb callback: reallocate BUF, which was allocated by the alloc or |
520 | realloc callback, so that it contains LEN bytes, and store a | |
521 | pointer to the result in BUFP. */ | |
c11d79f2 KB |
522 | |
523 | static int | |
524 | pdc_realloc (pthdb_user_t user, void *buf, size_t len, void **bufp) | |
525 | { | |
8e2c28d4 KB |
526 | if (debug_aix_thread) |
527 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 528 | "pdc_realloc (user = %ld, buf = 0x%lx, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 529 | user, (long) buf, len, (long) bufp); |
be006b8b | 530 | *bufp = xrealloc (buf, len); |
8e2c28d4 | 531 | if (debug_aix_thread) |
0fe7bf7b | 532 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 533 | " realloc returned 0x%lx\n", (long) *bufp); |
c11d79f2 KB |
534 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
535 | } | |
536 | ||
0fe7bf7b MS |
537 | /* pthdb callback: free BUF, which was allocated by the alloc or |
538 | realloc callback. */ | |
c11d79f2 KB |
539 | |
540 | static int | |
541 | pdc_dealloc (pthdb_user_t user, void *buf) | |
542 | { | |
8e2c28d4 | 543 | if (debug_aix_thread) |
0fe7bf7b | 544 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 545 | "pdc_free (user = %ld, buf = 0x%lx)\n", user, |
8e2c28d4 | 546 | (long) buf); |
c11d79f2 KB |
547 | xfree (buf); |
548 | return PDC_SUCCESS; | |
549 | } | |
550 | ||
0fe7bf7b | 551 | /* Return a printable representation of pthread STATE. */ |
c11d79f2 KB |
552 | |
553 | static char * | |
554 | state2str (pthdb_state_t state) | |
555 | { | |
556 | switch (state) | |
557 | { | |
edefbb7c AC |
558 | case PST_IDLE: |
559 | /* i18n: Like "Thread-Id %d, [state] idle" */ | |
560 | return _("idle"); /* being created */ | |
561 | case PST_RUN: | |
562 | /* i18n: Like "Thread-Id %d, [state] running" */ | |
563 | return _("running"); /* running */ | |
564 | case PST_SLEEP: | |
565 | /* i18n: Like "Thread-Id %d, [state] sleeping" */ | |
566 | return _("sleeping"); /* awaiting an event */ | |
567 | case PST_READY: | |
568 | /* i18n: Like "Thread-Id %d, [state] ready" */ | |
569 | return _("ready"); /* runnable */ | |
570 | case PST_TERM: | |
571 | /* i18n: Like "Thread-Id %d, [state] finished" */ | |
572 | return _("finished"); /* awaiting a join/detach */ | |
573 | default: | |
574 | /* i18n: Like "Thread-Id %d, [state] unknown" */ | |
575 | return _("unknown"); | |
c11d79f2 KB |
576 | } |
577 | } | |
578 | ||
0fe7bf7b | 579 | /* qsort() comparison function for sorting pd_thread structs by pthid. */ |
c11d79f2 KB |
580 | |
581 | static int | |
582 | pcmp (const void *p1v, const void *p2v) | |
583 | { | |
584 | struct pd_thread *p1 = (struct pd_thread *) p1v; | |
585 | struct pd_thread *p2 = (struct pd_thread *) p2v; | |
586 | return p1->pthid < p2->pthid ? -1 : p1->pthid > p2->pthid; | |
587 | } | |
588 | ||
77f0be4e JB |
589 | /* iterate_over_threads() callback for counting GDB threads. |
590 | ||
591 | Do not count the main thread (whose tid is zero). This matches | |
592 | the list of threads provided by the pthreaddebug library, which | |
593 | does not include that main thread either, and thus allows us | |
594 | to compare the two lists. */ | |
c11d79f2 KB |
595 | |
596 | static int | |
597 | giter_count (struct thread_info *thread, void *countp) | |
598 | { | |
77f0be4e JB |
599 | if (PD_TID (thread->ptid)) |
600 | (*(int *) countp)++; | |
c11d79f2 KB |
601 | return 0; |
602 | } | |
603 | ||
77f0be4e JB |
604 | /* iterate_over_threads() callback for accumulating GDB thread pids. |
605 | ||
606 | Do not include the main thread (whose tid is zero). This matches | |
607 | the list of threads provided by the pthreaddebug library, which | |
608 | does not include that main thread either, and thus allows us | |
609 | to compare the two lists. */ | |
c11d79f2 KB |
610 | |
611 | static int | |
612 | giter_accum (struct thread_info *thread, void *bufp) | |
613 | { | |
77f0be4e JB |
614 | if (PD_TID (thread->ptid)) |
615 | { | |
616 | **(struct thread_info ***) bufp = thread; | |
617 | (*(struct thread_info ***) bufp)++; | |
618 | } | |
c11d79f2 KB |
619 | return 0; |
620 | } | |
621 | ||
622 | /* ptid comparison function */ | |
0fe7bf7b | 623 | |
c11d79f2 KB |
624 | static int |
625 | ptid_cmp (ptid_t ptid1, ptid_t ptid2) | |
626 | { | |
627 | int pid1, pid2; | |
628 | ||
629 | if (ptid_get_pid (ptid1) < ptid_get_pid (ptid2)) | |
630 | return -1; | |
631 | else if (ptid_get_pid (ptid1) > ptid_get_pid (ptid2)) | |
632 | return 1; | |
633 | else if (ptid_get_tid (ptid1) < ptid_get_tid (ptid2)) | |
634 | return -1; | |
635 | else if (ptid_get_tid (ptid1) > ptid_get_tid (ptid2)) | |
636 | return 1; | |
637 | else if (ptid_get_lwp (ptid1) < ptid_get_lwp (ptid2)) | |
638 | return -1; | |
639 | else if (ptid_get_lwp (ptid1) > ptid_get_lwp (ptid2)) | |
640 | return 1; | |
641 | else | |
642 | return 0; | |
643 | } | |
644 | ||
0fe7bf7b | 645 | /* qsort() comparison function for sorting thread_info structs by pid. */ |
c11d79f2 KB |
646 | |
647 | static int | |
648 | gcmp (const void *t1v, const void *t2v) | |
649 | { | |
650 | struct thread_info *t1 = *(struct thread_info **) t1v; | |
651 | struct thread_info *t2 = *(struct thread_info **) t2v; | |
652 | return ptid_cmp (t1->ptid, t2->ptid); | |
653 | } | |
654 | ||
9ad7bec7 JB |
655 | /* Search through the list of all kernel threads for the thread |
656 | that has stopped on a SIGTRAP signal, and return its TID. | |
657 | Return 0 if none found. */ | |
658 | ||
659 | static pthdb_tid_t | |
660 | get_signaled_thread (void) | |
661 | { | |
662 | struct thrdsinfo64 thrinf; | |
eff44fea | 663 | tid_t ktid = 0; |
9ad7bec7 JB |
664 | int result = 0; |
665 | ||
9ad7bec7 JB |
666 | while (1) |
667 | { | |
dfd4cc63 | 668 | if (getthrds (ptid_get_pid (inferior_ptid), &thrinf, |
9ad7bec7 JB |
669 | sizeof (thrinf), &ktid, 1) != 1) |
670 | break; | |
671 | ||
672 | if (thrinf.ti_cursig == SIGTRAP) | |
673 | return thrinf.ti_tid; | |
674 | } | |
675 | ||
676 | /* Didn't find any thread stopped on a SIGTRAP signal. */ | |
677 | return 0; | |
678 | } | |
679 | ||
c11d79f2 KB |
680 | /* Synchronize GDB's thread list with libpthdebug's. |
681 | ||
682 | There are some benefits of doing this every time the inferior stops: | |
683 | ||
0fe7bf7b MS |
684 | - allows users to run thread-specific commands without needing to |
685 | run "info threads" first | |
c11d79f2 KB |
686 | |
687 | - helps pthdb_tid_pthread() work properly (see "libpthdebug | |
688 | peculiarities" at the top of this module) | |
689 | ||
0fe7bf7b MS |
690 | - simplifies the demands placed on libpthdebug, which seems to |
691 | have difficulty with certain call patterns */ | |
c11d79f2 KB |
692 | |
693 | static void | |
694 | sync_threadlists (void) | |
695 | { | |
696 | int cmd, status, infpid; | |
697 | int pcount, psize, pi, gcount, gi; | |
698 | struct pd_thread *pbuf; | |
699 | struct thread_info **gbuf, **g, *thread; | |
700 | pthdb_pthread_t pdtid; | |
701 | pthread_t pthid; | |
702 | pthdb_tid_t tid; | |
c11d79f2 | 703 | |
0fe7bf7b | 704 | /* Accumulate an array of libpthdebug threads sorted by pthread id. */ |
c11d79f2 KB |
705 | |
706 | pcount = 0; | |
707 | psize = 1; | |
708 | pbuf = (struct pd_thread *) xmalloc (psize * sizeof *pbuf); | |
709 | ||
710 | for (cmd = PTHDB_LIST_FIRST;; cmd = PTHDB_LIST_NEXT) | |
711 | { | |
712 | status = pthdb_pthread (pd_session, &pdtid, cmd); | |
713 | if (status != PTHDB_SUCCESS || pdtid == PTHDB_INVALID_PTHREAD) | |
714 | break; | |
715 | ||
716 | status = pthdb_pthread_ptid (pd_session, pdtid, &pthid); | |
717 | if (status != PTHDB_SUCCESS || pthid == PTHDB_INVALID_PTID) | |
718 | continue; | |
719 | ||
720 | if (pcount == psize) | |
721 | { | |
722 | psize *= 2; | |
0fe7bf7b MS |
723 | pbuf = (struct pd_thread *) xrealloc (pbuf, |
724 | psize * sizeof *pbuf); | |
c11d79f2 KB |
725 | } |
726 | pbuf[pcount].pdtid = pdtid; | |
727 | pbuf[pcount].pthid = pthid; | |
728 | pcount++; | |
729 | } | |
730 | ||
731 | for (pi = 0; pi < pcount; pi++) | |
732 | { | |
733 | status = pthdb_pthread_tid (pd_session, pbuf[pi].pdtid, &tid); | |
734 | if (status != PTHDB_SUCCESS) | |
735 | tid = PTHDB_INVALID_TID; | |
736 | pbuf[pi].tid = tid; | |
737 | } | |
738 | ||
739 | qsort (pbuf, pcount, sizeof *pbuf, pcmp); | |
740 | ||
0fe7bf7b | 741 | /* Accumulate an array of GDB threads sorted by pid. */ |
c11d79f2 KB |
742 | |
743 | gcount = 0; | |
744 | iterate_over_threads (giter_count, &gcount); | |
745 | g = gbuf = (struct thread_info **) xmalloc (gcount * sizeof *gbuf); | |
746 | iterate_over_threads (giter_accum, &g); | |
747 | qsort (gbuf, gcount, sizeof *gbuf, gcmp); | |
748 | ||
0fe7bf7b | 749 | /* Apply differences between the two arrays to GDB's thread list. */ |
c11d79f2 | 750 | |
dfd4cc63 | 751 | infpid = ptid_get_pid (inferior_ptid); |
c11d79f2 KB |
752 | for (pi = gi = 0; pi < pcount || gi < gcount;) |
753 | { | |
c11d79f2 | 754 | if (pi == pcount) |
c11d79f2 | 755 | { |
42cc437f | 756 | delete_thread (gbuf[gi]->ptid); |
c11d79f2 KB |
757 | gi++; |
758 | } | |
42cc437f | 759 | else if (gi == gcount) |
c11d79f2 | 760 | { |
f5371440 | 761 | thread = add_thread (ptid_build (infpid, 0, pbuf[pi].pthid)); |
c11d79f2 | 762 | thread->private = xmalloc (sizeof (struct private_thread_info)); |
42cc437f KB |
763 | thread->private->pdtid = pbuf[pi].pdtid; |
764 | thread->private->tid = pbuf[pi].tid; | |
c11d79f2 KB |
765 | pi++; |
766 | } | |
42cc437f KB |
767 | else |
768 | { | |
769 | ptid_t pptid, gptid; | |
770 | int cmp_result; | |
771 | ||
dfd4cc63 | 772 | pptid = ptid_build (infpid, 0, pbuf[pi].pthid); |
42cc437f KB |
773 | gptid = gbuf[gi]->ptid; |
774 | pdtid = pbuf[pi].pdtid; | |
775 | tid = pbuf[pi].tid; | |
c11d79f2 | 776 | |
42cc437f KB |
777 | cmp_result = ptid_cmp (pptid, gptid); |
778 | ||
779 | if (cmp_result == 0) | |
780 | { | |
781 | gbuf[gi]->private->pdtid = pdtid; | |
782 | gbuf[gi]->private->tid = tid; | |
783 | pi++; | |
784 | gi++; | |
785 | } | |
786 | else if (cmp_result > 0) | |
787 | { | |
788 | delete_thread (gptid); | |
789 | gi++; | |
790 | } | |
791 | else | |
792 | { | |
793 | thread = add_thread (pptid); | |
794 | thread->private = xmalloc (sizeof (struct private_thread_info)); | |
795 | thread->private->pdtid = pdtid; | |
796 | thread->private->tid = tid; | |
797 | pi++; | |
798 | } | |
799 | } | |
c11d79f2 KB |
800 | } |
801 | ||
802 | xfree (pbuf); | |
803 | xfree (gbuf); | |
804 | } | |
805 | ||
9ad7bec7 JB |
806 | /* Iterate_over_threads() callback for locating a thread, using |
807 | the TID of its associated kernel thread. */ | |
c11d79f2 KB |
808 | |
809 | static int | |
9ad7bec7 | 810 | iter_tid (struct thread_info *thread, void *tidp) |
c11d79f2 | 811 | { |
9ad7bec7 | 812 | const pthdb_tid_t tid = *(pthdb_tid_t *)tidp; |
c11d79f2 | 813 | |
9ad7bec7 | 814 | return (thread->private->tid == tid); |
c11d79f2 KB |
815 | } |
816 | ||
0fe7bf7b MS |
817 | /* Synchronize libpthdebug's state with the inferior and with GDB, |
818 | generate a composite process/thread <pid> for the current thread, | |
819 | set inferior_ptid to <pid> if SET_INFPID, and return <pid>. */ | |
c11d79f2 KB |
820 | |
821 | static ptid_t | |
822 | pd_update (int set_infpid) | |
823 | { | |
824 | int status; | |
825 | ptid_t ptid; | |
9ad7bec7 JB |
826 | pthdb_tid_t tid; |
827 | struct thread_info *thread = NULL; | |
c11d79f2 KB |
828 | |
829 | if (!pd_active) | |
830 | return inferior_ptid; | |
831 | ||
832 | status = pthdb_session_update (pd_session); | |
833 | if (status != PTHDB_SUCCESS) | |
834 | return inferior_ptid; | |
835 | ||
836 | sync_threadlists (); | |
837 | ||
0fe7bf7b | 838 | /* Define "current thread" as one that just received a trap signal. */ |
c11d79f2 | 839 | |
9ad7bec7 JB |
840 | tid = get_signaled_thread (); |
841 | if (tid != 0) | |
842 | thread = iterate_over_threads (iter_tid, &tid); | |
c11d79f2 KB |
843 | if (!thread) |
844 | ptid = inferior_ptid; | |
845 | else | |
846 | { | |
847 | ptid = thread->ptid; | |
848 | if (set_infpid) | |
849 | inferior_ptid = ptid; | |
850 | } | |
851 | return ptid; | |
852 | } | |
853 | ||
0963b4bd | 854 | /* Try to start debugging threads in the current process. |
0fe7bf7b MS |
855 | If successful and SET_INFPID, set inferior_ptid to reflect the |
856 | current thread. */ | |
c11d79f2 KB |
857 | |
858 | static ptid_t | |
859 | pd_activate (int set_infpid) | |
860 | { | |
861 | int status; | |
862 | ||
863 | status = pthdb_session_init (PD_USER, arch64 ? PEM_64BIT : PEM_32BIT, | |
0fe7bf7b MS |
864 | PTHDB_FLAG_REGS, &pd_callbacks, |
865 | &pd_session); | |
c11d79f2 KB |
866 | if (status != PTHDB_SUCCESS) |
867 | { | |
868 | return inferior_ptid; | |
869 | } | |
870 | pd_active = 1; | |
871 | return pd_update (set_infpid); | |
872 | } | |
873 | ||
0fe7bf7b | 874 | /* Undo the effects of pd_activate(). */ |
c11d79f2 KB |
875 | |
876 | static void | |
877 | pd_deactivate (void) | |
878 | { | |
879 | if (!pd_active) | |
880 | return; | |
881 | pthdb_session_destroy (pd_session); | |
882 | ||
883 | pid_to_prc (&inferior_ptid); | |
884 | pd_active = 0; | |
885 | } | |
886 | ||
0fe7bf7b MS |
887 | /* An object file has just been loaded. Check whether the current |
888 | application is pthreaded, and if so, prepare for thread debugging. */ | |
c11d79f2 KB |
889 | |
890 | static void | |
891 | pd_enable (void) | |
892 | { | |
893 | int status; | |
894 | char *stub_name; | |
3b7344d5 | 895 | struct bound_minimal_symbol ms; |
c11d79f2 | 896 | |
0fe7bf7b | 897 | /* Don't initialize twice. */ |
c11d79f2 KB |
898 | if (pd_able) |
899 | return; | |
900 | ||
0fe7bf7b | 901 | /* Check application word size. */ |
f5656ead | 902 | arch64 = register_size (target_gdbarch (), 0) == 8; |
c11d79f2 | 903 | |
0fe7bf7b | 904 | /* Check whether the application is pthreaded. */ |
c11d79f2 | 905 | stub_name = NULL; |
0fe7bf7b MS |
906 | status = pthdb_session_pthreaded (PD_USER, PTHDB_FLAG_REGS, |
907 | &pd_callbacks, &stub_name); | |
f8bf5763 PM |
908 | if ((status != PTHDB_SUCCESS |
909 | && status != PTHDB_NOT_PTHREADED) || !stub_name) | |
c11d79f2 KB |
910 | return; |
911 | ||
0fe7bf7b | 912 | /* Set a breakpoint on the returned stub function. */ |
3b7344d5 TT |
913 | ms = lookup_minimal_symbol (stub_name, NULL, NULL); |
914 | if (ms.minsym == NULL) | |
c11d79f2 | 915 | return; |
77e371c0 | 916 | pd_brk_addr = BMSYMBOL_VALUE_ADDRESS (ms); |
f5656ead | 917 | if (!create_thread_event_breakpoint (target_gdbarch (), pd_brk_addr)) |
c11d79f2 KB |
918 | return; |
919 | ||
0fe7bf7b | 920 | /* Prepare for thread debugging. */ |
206d3d3c | 921 | push_target (&aix_thread_ops); |
c11d79f2 KB |
922 | pd_able = 1; |
923 | ||
0fe7bf7b MS |
924 | /* If we're debugging a core file or an attached inferior, the |
925 | pthread library may already have been initialized, so try to | |
926 | activate thread debugging. */ | |
c11d79f2 KB |
927 | pd_activate (1); |
928 | } | |
929 | ||
0fe7bf7b | 930 | /* Undo the effects of pd_enable(). */ |
c11d79f2 KB |
931 | |
932 | static void | |
933 | pd_disable (void) | |
934 | { | |
935 | if (!pd_able) | |
936 | return; | |
937 | if (pd_active) | |
938 | pd_deactivate (); | |
939 | pd_able = 0; | |
206d3d3c | 940 | unpush_target (&aix_thread_ops); |
c11d79f2 KB |
941 | } |
942 | ||
06d3b283 | 943 | /* new_objfile observer callback. |
c11d79f2 | 944 | |
0fe7bf7b MS |
945 | If OBJFILE is non-null, check whether a threaded application is |
946 | being debugged, and if so, prepare for thread debugging. | |
c11d79f2 | 947 | |
0fe7bf7b | 948 | If OBJFILE is null, stop debugging threads. */ |
c11d79f2 KB |
949 | |
950 | static void | |
951 | new_objfile (struct objfile *objfile) | |
952 | { | |
953 | if (objfile) | |
954 | pd_enable (); | |
955 | else | |
956 | pd_disable (); | |
c11d79f2 KB |
957 | } |
958 | ||
0fe7bf7b | 959 | /* Attach to process specified by ARGS. */ |
c11d79f2 KB |
960 | |
961 | static void | |
b3ccfe11 | 962 | aix_thread_inferior_created (struct target_ops *ops, int from_tty) |
c11d79f2 | 963 | { |
b3ccfe11 | 964 | pd_enable (); |
c11d79f2 KB |
965 | } |
966 | ||
206d3d3c | 967 | /* Detach from the process attached to by aix_thread_attach(). */ |
c11d79f2 KB |
968 | |
969 | static void | |
52554a0e | 970 | aix_thread_detach (struct target_ops *ops, const char *args, int from_tty) |
c11d79f2 | 971 | { |
d30acaa7 JB |
972 | struct target_ops *beneath = find_target_beneath (ops); |
973 | ||
6c0c456d | 974 | pd_disable (); |
d30acaa7 | 975 | beneath->to_detach (beneath, args, from_tty); |
c11d79f2 KB |
976 | } |
977 | ||
978 | /* Tell the inferior process to continue running thread PID if != -1 | |
0fe7bf7b | 979 | and all threads otherwise. */ |
c11d79f2 KB |
980 | |
981 | static void | |
c7660128 | 982 | aix_thread_resume (struct target_ops *ops, |
2ea28649 | 983 | ptid_t ptid, int step, enum gdb_signal sig) |
c11d79f2 KB |
984 | { |
985 | struct thread_info *thread; | |
986 | pthdb_tid_t tid[2]; | |
987 | ||
988 | if (!PD_TID (ptid)) | |
14fa3751 KB |
989 | { |
990 | struct cleanup *cleanup = save_inferior_ptid (); | |
d30acaa7 JB |
991 | struct target_ops *beneath = find_target_beneath (ops); |
992 | ||
dfd4cc63 | 993 | inferior_ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); |
d30acaa7 | 994 | beneath->to_resume (beneath, ptid, step, sig); |
14fa3751 KB |
995 | do_cleanups (cleanup); |
996 | } | |
c11d79f2 KB |
997 | else |
998 | { | |
e09875d4 | 999 | thread = find_thread_ptid (ptid); |
c11d79f2 | 1000 | if (!thread) |
edefbb7c | 1001 | error (_("aix-thread resume: unknown pthread %ld"), |
dfd4cc63 | 1002 | ptid_get_lwp (ptid)); |
c11d79f2 KB |
1003 | |
1004 | tid[0] = thread->private->tid; | |
1005 | if (tid[0] == PTHDB_INVALID_TID) | |
edefbb7c | 1006 | error (_("aix-thread resume: no tid for pthread %ld"), |
dfd4cc63 | 1007 | ptid_get_lwp (ptid)); |
c11d79f2 KB |
1008 | tid[1] = 0; |
1009 | ||
1010 | if (arch64) | |
fecf803e | 1011 | ptrace64aix (PTT_CONTINUE, tid[0], (long long) 1, |
2ea28649 | 1012 | gdb_signal_to_host (sig), (void *) tid); |
c11d79f2 | 1013 | else |
fecf803e | 1014 | ptrace32 (PTT_CONTINUE, tid[0], (addr_ptr) 1, |
2ea28649 | 1015 | gdb_signal_to_host (sig), (void *) tid); |
c11d79f2 KB |
1016 | } |
1017 | } | |
1018 | ||
0fe7bf7b MS |
1019 | /* Wait for thread/process ID if != -1 or for any thread otherwise. |
1020 | If an error occurs, return -1, else return the pid of the stopped | |
1021 | thread. */ | |
c11d79f2 KB |
1022 | |
1023 | static ptid_t | |
117de6a9 | 1024 | aix_thread_wait (struct target_ops *ops, |
8914d83b | 1025 | ptid_t ptid, struct target_waitstatus *status, int options) |
c11d79f2 | 1026 | { |
14fa3751 | 1027 | struct cleanup *cleanup = save_inferior_ptid (); |
d30acaa7 | 1028 | struct target_ops *beneath = find_target_beneath (ops); |
14fa3751 | 1029 | |
c11d79f2 | 1030 | pid_to_prc (&ptid); |
14fa3751 | 1031 | |
dfd4cc63 | 1032 | inferior_ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); |
8914d83b | 1033 | ptid = beneath->to_wait (beneath, ptid, status, options); |
14fa3751 KB |
1034 | do_cleanups (cleanup); |
1035 | ||
dfd4cc63 | 1036 | if (ptid_get_pid (ptid) == -1) |
c11d79f2 KB |
1037 | return pid_to_ptid (-1); |
1038 | ||
0fe7bf7b | 1039 | /* Check whether libpthdebug might be ready to be initialized. */ |
515630c5 | 1040 | if (!pd_active && status->kind == TARGET_WAITKIND_STOPPED |
a493e3e2 | 1041 | && status->value.sig == GDB_SIGNAL_TRAP) |
515630c5 UW |
1042 | { |
1043 | struct regcache *regcache = get_thread_regcache (ptid); | |
1044 | struct gdbarch *gdbarch = get_regcache_arch (regcache); | |
1045 | ||
1046 | if (regcache_read_pc (regcache) | |
118e6252 | 1047 | - target_decr_pc_after_break (gdbarch) == pd_brk_addr) |
515630c5 UW |
1048 | return pd_activate (0); |
1049 | } | |
c11d79f2 KB |
1050 | |
1051 | return pd_update (0); | |
1052 | } | |
1053 | ||
0fe7bf7b | 1054 | /* Record that the 64-bit general-purpose registers contain VALS. */ |
c11d79f2 KB |
1055 | |
1056 | static void | |
647478e0 | 1057 | supply_gprs64 (struct regcache *regcache, uint64_t *vals) |
c11d79f2 | 1058 | { |
c7f30c7a | 1059 | struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache)); |
c11d79f2 KB |
1060 | int regno; |
1061 | ||
063715bf | 1062 | for (regno = 0; regno < ppc_num_gprs; regno++) |
647478e0 | 1063 | regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + regno, |
23a6d369 | 1064 | (char *) (vals + regno)); |
c11d79f2 KB |
1065 | } |
1066 | ||
0fe7bf7b | 1067 | /* Record that 32-bit register REGNO contains VAL. */ |
c11d79f2 KB |
1068 | |
1069 | static void | |
647478e0 | 1070 | supply_reg32 (struct regcache *regcache, int regno, uint32_t val) |
c11d79f2 | 1071 | { |
647478e0 | 1072 | regcache_raw_supply (regcache, regno, (char *) &val); |
c11d79f2 KB |
1073 | } |
1074 | ||
0fe7bf7b | 1075 | /* Record that the floating-point registers contain VALS. */ |
c11d79f2 KB |
1076 | |
1077 | static void | |
647478e0 | 1078 | supply_fprs (struct regcache *regcache, double *vals) |
c11d79f2 | 1079 | { |
c7f30c7a UW |
1080 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1081 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
c11d79f2 KB |
1082 | int regno; |
1083 | ||
383f0f5b JB |
1084 | /* This function should never be called on architectures without |
1085 | floating-point registers. */ | |
c7f30c7a | 1086 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1087 | |
786c562f JB |
1088 | for (regno = tdep->ppc_fp0_regnum; |
1089 | regno < tdep->ppc_fp0_regnum + ppc_num_fprs; | |
1090 | regno++) | |
1091 | regcache_raw_supply (regcache, regno, | |
1092 | (char *) (vals + regno - tdep->ppc_fp0_regnum)); | |
c11d79f2 KB |
1093 | } |
1094 | ||
f1a91342 KB |
1095 | /* Predicate to test whether given register number is a "special" register. */ |
1096 | static int | |
9970f04b | 1097 | special_register_p (struct gdbarch *gdbarch, int regno) |
f1a91342 | 1098 | { |
9970f04b | 1099 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1100 | |
9970f04b | 1101 | return regno == gdbarch_pc_regnum (gdbarch) |
f1a91342 KB |
1102 | || regno == tdep->ppc_ps_regnum |
1103 | || regno == tdep->ppc_cr_regnum | |
1104 | || regno == tdep->ppc_lr_regnum | |
1105 | || regno == tdep->ppc_ctr_regnum | |
1106 | || regno == tdep->ppc_xer_regnum | |
383f0f5b | 1107 | || (tdep->ppc_fpscr_regnum >= 0 && regno == tdep->ppc_fpscr_regnum) |
f1a91342 KB |
1108 | || (tdep->ppc_mq_regnum >= 0 && regno == tdep->ppc_mq_regnum); |
1109 | } | |
1110 | ||
1111 | ||
0fe7bf7b MS |
1112 | /* Record that the special registers contain the specified 64-bit and |
1113 | 32-bit values. */ | |
c11d79f2 KB |
1114 | |
1115 | static void | |
647478e0 UW |
1116 | supply_sprs64 (struct regcache *regcache, |
1117 | uint64_t iar, uint64_t msr, uint32_t cr, | |
0e061eef KB |
1118 | uint64_t lr, uint64_t ctr, uint32_t xer, |
1119 | uint32_t fpscr) | |
c11d79f2 | 1120 | { |
c7f30c7a UW |
1121 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1122 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 | 1123 | |
c7f30c7a | 1124 | regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch), |
3e8c568d | 1125 | (char *) &iar); |
647478e0 UW |
1126 | regcache_raw_supply (regcache, tdep->ppc_ps_regnum, (char *) &msr); |
1127 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, (char *) &cr); | |
1128 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, (char *) &lr); | |
1129 | regcache_raw_supply (regcache, tdep->ppc_ctr_regnum, (char *) &ctr); | |
1130 | regcache_raw_supply (regcache, tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1131 | if (tdep->ppc_fpscr_regnum >= 0) |
647478e0 | 1132 | regcache_raw_supply (regcache, tdep->ppc_fpscr_regnum, |
23a6d369 | 1133 | (char *) &fpscr); |
c11d79f2 KB |
1134 | } |
1135 | ||
0fe7bf7b MS |
1136 | /* Record that the special registers contain the specified 32-bit |
1137 | values. */ | |
c11d79f2 KB |
1138 | |
1139 | static void | |
647478e0 UW |
1140 | supply_sprs32 (struct regcache *regcache, |
1141 | uint32_t iar, uint32_t msr, uint32_t cr, | |
0e061eef KB |
1142 | uint32_t lr, uint32_t ctr, uint32_t xer, |
1143 | uint32_t fpscr) | |
c11d79f2 | 1144 | { |
c7f30c7a UW |
1145 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1146 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 | 1147 | |
c7f30c7a | 1148 | regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch), |
3e8c568d | 1149 | (char *) &iar); |
647478e0 UW |
1150 | regcache_raw_supply (regcache, tdep->ppc_ps_regnum, (char *) &msr); |
1151 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, (char *) &cr); | |
1152 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, (char *) &lr); | |
1153 | regcache_raw_supply (regcache, tdep->ppc_ctr_regnum, (char *) &ctr); | |
1154 | regcache_raw_supply (regcache, tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1155 | if (tdep->ppc_fpscr_regnum >= 0) |
647478e0 | 1156 | regcache_raw_supply (regcache, tdep->ppc_fpscr_regnum, |
23a6d369 | 1157 | (char *) &fpscr); |
c11d79f2 KB |
1158 | } |
1159 | ||
1160 | /* Fetch all registers from pthread PDTID, which doesn't have a kernel | |
1161 | thread. | |
1162 | ||
0fe7bf7b MS |
1163 | There's no way to query a single register from a non-kernel |
1164 | pthread, so there's no need for a single-register version of this | |
1165 | function. */ | |
c11d79f2 KB |
1166 | |
1167 | static void | |
647478e0 | 1168 | fetch_regs_user_thread (struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1169 | { |
c7f30c7a UW |
1170 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1171 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
c11d79f2 KB |
1172 | int status, i; |
1173 | pthdb_context_t ctx; | |
1174 | ||
8e2c28d4 | 1175 | if (debug_aix_thread) |
206d3d3c KB |
1176 | fprintf_unfiltered (gdb_stdlog, |
1177 | "fetch_regs_user_thread %lx\n", (long) pdtid); | |
c11d79f2 KB |
1178 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1179 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1180 | error (_("aix-thread: fetch_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1181 | pd_status2str (status)); |
c11d79f2 | 1182 | |
0fe7bf7b | 1183 | /* General-purpose registers. */ |
c11d79f2 KB |
1184 | |
1185 | if (arch64) | |
647478e0 | 1186 | supply_gprs64 (regcache, ctx.gpr); |
c11d79f2 | 1187 | else |
063715bf | 1188 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1189 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, ctx.gpr[i]); |
c11d79f2 | 1190 | |
0fe7bf7b | 1191 | /* Floating-point registers. */ |
c11d79f2 | 1192 | |
c7f30c7a | 1193 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1194 | supply_fprs (regcache, ctx.fpr); |
c11d79f2 | 1195 | |
0fe7bf7b | 1196 | /* Special registers. */ |
c11d79f2 KB |
1197 | |
1198 | if (arch64) | |
647478e0 UW |
1199 | supply_sprs64 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1200 | ctx.xer, ctx.fpscr); | |
c11d79f2 | 1201 | else |
647478e0 UW |
1202 | supply_sprs32 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1203 | ctx.xer, ctx.fpscr); | |
c11d79f2 KB |
1204 | } |
1205 | ||
0fe7bf7b MS |
1206 | /* Fetch register REGNO if != -1 or all registers otherwise from |
1207 | kernel thread TID. | |
c11d79f2 | 1208 | |
0fe7bf7b MS |
1209 | AIX provides a way to query all of a kernel thread's GPRs, FPRs, or |
1210 | SPRs, but there's no way to query individual registers within those | |
1211 | groups. Therefore, if REGNO != -1, this function fetches an entire | |
1212 | group. | |
c11d79f2 | 1213 | |
0fe7bf7b MS |
1214 | Unfortunately, kernel thread register queries often fail with |
1215 | EPERM, indicating that the thread is in kernel space. This breaks | |
1216 | backtraces of threads other than the current one. To make that | |
1217 | breakage obvious without throwing an error to top level (which is | |
1218 | bad e.g. during "info threads" output), zero registers that can't | |
1219 | be retrieved. */ | |
c11d79f2 KB |
1220 | |
1221 | static void | |
647478e0 UW |
1222 | fetch_regs_kernel_thread (struct regcache *regcache, int regno, |
1223 | pthdb_tid_t tid) | |
c11d79f2 | 1224 | { |
c7f30c7a UW |
1225 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1226 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
063715bf JB |
1227 | uint64_t gprs64[ppc_num_gprs]; |
1228 | uint32_t gprs32[ppc_num_gprs]; | |
1229 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
1230 | struct ptxsprs sprs64; |
1231 | struct ptsprs sprs32; | |
1232 | int i; | |
1233 | ||
8e2c28d4 KB |
1234 | if (debug_aix_thread) |
1235 | fprintf_unfiltered (gdb_stdlog, | |
206d3d3c KB |
1236 | "fetch_regs_kernel_thread tid=%lx regno=%d arch64=%d\n", |
1237 | (long) tid, regno, arch64); | |
c11d79f2 | 1238 | |
0fe7bf7b | 1239 | /* General-purpose registers. */ |
daf6dc85 JB |
1240 | if (regno == -1 |
1241 | || (tdep->ppc_gp0_regnum <= regno | |
1242 | && regno < tdep->ppc_gp0_regnum + ppc_num_gprs)) | |
c11d79f2 KB |
1243 | { |
1244 | if (arch64) | |
1245 | { | |
0fe7bf7b MS |
1246 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
1247 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 | 1248 | memset (gprs64, 0, sizeof (gprs64)); |
647478e0 | 1249 | supply_gprs64 (regcache, gprs64); |
c11d79f2 KB |
1250 | } |
1251 | else | |
1252 | { | |
3b631e37 | 1253 | if (!ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL)) |
c11d79f2 | 1254 | memset (gprs32, 0, sizeof (gprs32)); |
063715bf | 1255 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1256 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, gprs32[i]); |
c11d79f2 KB |
1257 | } |
1258 | } | |
1259 | ||
0fe7bf7b | 1260 | /* Floating-point registers. */ |
c11d79f2 | 1261 | |
c7f30c7a | 1262 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1263 | && (regno == -1 |
1264 | || (regno >= tdep->ppc_fp0_regnum | |
1265 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 | 1266 | { |
3b631e37 | 1267 | if (!ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL)) |
c11d79f2 | 1268 | memset (fprs, 0, sizeof (fprs)); |
647478e0 | 1269 | supply_fprs (regcache, fprs); |
c11d79f2 KB |
1270 | } |
1271 | ||
0fe7bf7b | 1272 | /* Special-purpose registers. */ |
c11d79f2 | 1273 | |
9970f04b | 1274 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1275 | { |
1276 | if (arch64) | |
1277 | { | |
0fe7bf7b MS |
1278 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
1279 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 | 1280 | memset (&sprs64, 0, sizeof (sprs64)); |
647478e0 UW |
1281 | supply_sprs64 (regcache, sprs64.pt_iar, sprs64.pt_msr, |
1282 | sprs64.pt_cr, sprs64.pt_lr, sprs64.pt_ctr, | |
1283 | sprs64.pt_xer, sprs64.pt_fpscr); | |
c11d79f2 KB |
1284 | } |
1285 | else | |
1286 | { | |
c7f30c7a | 1287 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1288 | |
3b631e37 | 1289 | if (!ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL)) |
c11d79f2 | 1290 | memset (&sprs32, 0, sizeof (sprs32)); |
647478e0 | 1291 | supply_sprs32 (regcache, sprs32.pt_iar, sprs32.pt_msr, sprs32.pt_cr, |
0e061eef KB |
1292 | sprs32.pt_lr, sprs32.pt_ctr, sprs32.pt_xer, |
1293 | sprs32.pt_fpscr); | |
c11d79f2 | 1294 | |
f1a91342 | 1295 | if (tdep->ppc_mq_regnum >= 0) |
647478e0 | 1296 | regcache_raw_supply (regcache, tdep->ppc_mq_regnum, |
23a6d369 | 1297 | (char *) &sprs32.pt_mq); |
c11d79f2 KB |
1298 | } |
1299 | } | |
1300 | } | |
1301 | ||
1302 | /* Fetch register REGNO if != -1 or all registers otherwise in the | |
0fe7bf7b | 1303 | thread/process specified by inferior_ptid. */ |
c11d79f2 KB |
1304 | |
1305 | static void | |
c7660128 JB |
1306 | aix_thread_fetch_registers (struct target_ops *ops, |
1307 | struct regcache *regcache, int regno) | |
c11d79f2 KB |
1308 | { |
1309 | struct thread_info *thread; | |
1310 | pthdb_tid_t tid; | |
d30acaa7 | 1311 | struct target_ops *beneath = find_target_beneath (ops); |
c11d79f2 KB |
1312 | |
1313 | if (!PD_TID (inferior_ptid)) | |
d30acaa7 | 1314 | beneath->to_fetch_registers (beneath, regcache, regno); |
c11d79f2 KB |
1315 | else |
1316 | { | |
e09875d4 | 1317 | thread = find_thread_ptid (inferior_ptid); |
c11d79f2 KB |
1318 | tid = thread->private->tid; |
1319 | ||
1320 | if (tid == PTHDB_INVALID_TID) | |
56be3814 | 1321 | fetch_regs_user_thread (regcache, thread->private->pdtid); |
c11d79f2 | 1322 | else |
56be3814 | 1323 | fetch_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1324 | } |
1325 | } | |
1326 | ||
61c5da0b KB |
1327 | /* Store the gp registers into an array of uint32_t or uint64_t. */ |
1328 | ||
1329 | static void | |
647478e0 | 1330 | fill_gprs64 (const struct regcache *regcache, uint64_t *vals) |
61c5da0b | 1331 | { |
c7f30c7a | 1332 | struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache)); |
61c5da0b KB |
1333 | int regno; |
1334 | ||
daf6dc85 | 1335 | for (regno = 0; regno < ppc_num_gprs; regno++) |
672c9795 YQ |
1336 | if (REG_VALID == regcache_register_status (regcache, |
1337 | tdep->ppc_gp0_regnum + regno)) | |
647478e0 | 1338 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + regno, |
822c9732 | 1339 | vals + regno); |
61c5da0b KB |
1340 | } |
1341 | ||
1342 | static void | |
647478e0 | 1343 | fill_gprs32 (const struct regcache *regcache, uint32_t *vals) |
61c5da0b | 1344 | { |
c7f30c7a | 1345 | struct gdbarch_tdep *tdep = gdbarch_tdep (get_regcache_arch (regcache)); |
61c5da0b KB |
1346 | int regno; |
1347 | ||
daf6dc85 | 1348 | for (regno = 0; regno < ppc_num_gprs; regno++) |
672c9795 YQ |
1349 | if (REG_VALID == regcache_register_status (regcache, |
1350 | tdep->ppc_gp0_regnum + regno)) | |
647478e0 | 1351 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + regno, |
822c9732 | 1352 | vals + regno); |
61c5da0b KB |
1353 | } |
1354 | ||
1355 | /* Store the floating point registers into a double array. */ | |
1356 | static void | |
647478e0 | 1357 | fill_fprs (const struct regcache *regcache, double *vals) |
61c5da0b | 1358 | { |
c7f30c7a UW |
1359 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1360 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
61c5da0b KB |
1361 | int regno; |
1362 | ||
383f0f5b JB |
1363 | /* This function should never be called on architectures without |
1364 | floating-point registers. */ | |
c7f30c7a | 1365 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1366 | |
366f009f JB |
1367 | for (regno = tdep->ppc_fp0_regnum; |
1368 | regno < tdep->ppc_fp0_regnum + ppc_num_fprs; | |
1369 | regno++) | |
672c9795 | 1370 | if (REG_VALID == regcache_register_status (regcache, regno)) |
e3ebf1bb JB |
1371 | regcache_raw_collect (regcache, regno, |
1372 | vals + regno - tdep->ppc_fp0_regnum); | |
61c5da0b KB |
1373 | } |
1374 | ||
c11d79f2 | 1375 | /* Store the special registers into the specified 64-bit and 32-bit |
0fe7bf7b | 1376 | locations. */ |
c11d79f2 KB |
1377 | |
1378 | static void | |
647478e0 UW |
1379 | fill_sprs64 (const struct regcache *regcache, |
1380 | uint64_t *iar, uint64_t *msr, uint32_t *cr, | |
0e061eef KB |
1381 | uint64_t *lr, uint64_t *ctr, uint32_t *xer, |
1382 | uint32_t *fpscr) | |
c11d79f2 | 1383 | { |
c7f30c7a UW |
1384 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1385 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 KB |
1386 | |
1387 | /* Verify that the size of the size of the IAR buffer is the | |
1388 | same as the raw size of the PC (in the register cache). If | |
1389 | they're not, then either GDB has been built incorrectly, or | |
1390 | there's some other kind of internal error. To be really safe, | |
1391 | we should check all of the sizes. */ | |
3e8c568d | 1392 | gdb_assert (sizeof (*iar) == register_size |
c7f30c7a | 1393 | (gdbarch, gdbarch_pc_regnum (gdbarch))); |
f1a91342 | 1394 | |
672c9795 YQ |
1395 | if (REG_VALID == regcache_register_status (regcache, |
1396 | gdbarch_pc_regnum (gdbarch))) | |
c7f30c7a | 1397 | regcache_raw_collect (regcache, gdbarch_pc_regnum (gdbarch), iar); |
672c9795 | 1398 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ps_regnum)) |
647478e0 | 1399 | regcache_raw_collect (regcache, tdep->ppc_ps_regnum, msr); |
672c9795 | 1400 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_cr_regnum)) |
647478e0 | 1401 | regcache_raw_collect (regcache, tdep->ppc_cr_regnum, cr); |
672c9795 | 1402 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_lr_regnum)) |
647478e0 | 1403 | regcache_raw_collect (regcache, tdep->ppc_lr_regnum, lr); |
672c9795 | 1404 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ctr_regnum)) |
647478e0 | 1405 | regcache_raw_collect (regcache, tdep->ppc_ctr_regnum, ctr); |
672c9795 | 1406 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_xer_regnum)) |
647478e0 | 1407 | regcache_raw_collect (regcache, tdep->ppc_xer_regnum, xer); |
383f0f5b | 1408 | if (tdep->ppc_fpscr_regnum >= 0 |
672c9795 YQ |
1409 | && REG_VALID == regcache_register_status (regcache, |
1410 | tdep->ppc_fpscr_regnum)) | |
647478e0 | 1411 | regcache_raw_collect (regcache, tdep->ppc_fpscr_regnum, fpscr); |
61c5da0b KB |
1412 | } |
1413 | ||
1414 | static void | |
647478e0 UW |
1415 | fill_sprs32 (const struct regcache *regcache, |
1416 | uint32_t *iar, uint32_t *msr, uint32_t *cr, | |
0d16ee5d UW |
1417 | uint32_t *lr, uint32_t *ctr, uint32_t *xer, |
1418 | uint32_t *fpscr) | |
61c5da0b | 1419 | { |
c7f30c7a UW |
1420 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1421 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
f1a91342 KB |
1422 | |
1423 | /* Verify that the size of the size of the IAR buffer is the | |
1424 | same as the raw size of the PC (in the register cache). If | |
1425 | they're not, then either GDB has been built incorrectly, or | |
1426 | there's some other kind of internal error. To be really safe, | |
0d16ee5d | 1427 | we should check all of the sizes. */ |
c7f30c7a UW |
1428 | gdb_assert (sizeof (*iar) == register_size (gdbarch, |
1429 | gdbarch_pc_regnum (gdbarch))); | |
f1a91342 | 1430 | |
672c9795 YQ |
1431 | if (REG_VALID == regcache_register_status (regcache, |
1432 | gdbarch_pc_regnum (gdbarch))) | |
c7f30c7a | 1433 | regcache_raw_collect (regcache, gdbarch_pc_regnum (gdbarch), iar); |
672c9795 | 1434 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ps_regnum)) |
647478e0 | 1435 | regcache_raw_collect (regcache, tdep->ppc_ps_regnum, msr); |
672c9795 | 1436 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_cr_regnum)) |
647478e0 | 1437 | regcache_raw_collect (regcache, tdep->ppc_cr_regnum, cr); |
672c9795 | 1438 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_lr_regnum)) |
647478e0 | 1439 | regcache_raw_collect (regcache, tdep->ppc_lr_regnum, lr); |
672c9795 | 1440 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ctr_regnum)) |
647478e0 | 1441 | regcache_raw_collect (regcache, tdep->ppc_ctr_regnum, ctr); |
672c9795 | 1442 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_xer_regnum)) |
647478e0 | 1443 | regcache_raw_collect (regcache, tdep->ppc_xer_regnum, xer); |
383f0f5b | 1444 | if (tdep->ppc_fpscr_regnum >= 0 |
672c9795 | 1445 | && REG_VALID == regcache_register_status (regcache, tdep->ppc_fpscr_regnum)) |
647478e0 | 1446 | regcache_raw_collect (regcache, tdep->ppc_fpscr_regnum, fpscr); |
c11d79f2 KB |
1447 | } |
1448 | ||
1449 | /* Store all registers into pthread PDTID, which doesn't have a kernel | |
1450 | thread. | |
1451 | ||
0fe7bf7b MS |
1452 | It's possible to store a single register into a non-kernel pthread, |
1453 | but I doubt it's worth the effort. */ | |
c11d79f2 KB |
1454 | |
1455 | static void | |
647478e0 | 1456 | store_regs_user_thread (const struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1457 | { |
c7f30c7a UW |
1458 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1459 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
c11d79f2 KB |
1460 | int status, i; |
1461 | pthdb_context_t ctx; | |
61c5da0b KB |
1462 | uint32_t int32; |
1463 | uint64_t int64; | |
1464 | double dbl; | |
c11d79f2 | 1465 | |
8e2c28d4 | 1466 | if (debug_aix_thread) |
0fe7bf7b | 1467 | fprintf_unfiltered (gdb_stdlog, |
206d3d3c | 1468 | "store_regs_user_thread %lx\n", (long) pdtid); |
c11d79f2 | 1469 | |
0fe7bf7b MS |
1470 | /* Retrieve the thread's current context for its non-register |
1471 | values. */ | |
c11d79f2 KB |
1472 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1473 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1474 | error (_("aix-thread: store_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1475 | pd_status2str (status)); |
c11d79f2 | 1476 | |
61c5da0b | 1477 | /* Collect general-purpose register values from the regcache. */ |
c11d79f2 | 1478 | |
063715bf | 1479 | for (i = 0; i < ppc_num_gprs; i++) |
672c9795 YQ |
1480 | if (REG_VALID == regcache_register_status (regcache, |
1481 | tdep->ppc_gp0_regnum + i)) | |
cbe92db4 KB |
1482 | { |
1483 | if (arch64) | |
1484 | { | |
647478e0 | 1485 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + i, |
822c9732 | 1486 | (void *) &int64); |
cbe92db4 KB |
1487 | ctx.gpr[i] = int64; |
1488 | } | |
1489 | else | |
1490 | { | |
647478e0 | 1491 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + i, |
822c9732 | 1492 | (void *) &int32); |
cbe92db4 KB |
1493 | ctx.gpr[i] = int32; |
1494 | } | |
1495 | } | |
c11d79f2 | 1496 | |
61c5da0b | 1497 | /* Collect floating-point register values from the regcache. */ |
c7f30c7a | 1498 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1499 | fill_fprs (regcache, ctx.fpr); |
c11d79f2 | 1500 | |
61c5da0b KB |
1501 | /* Special registers (always kept in ctx as 64 bits). */ |
1502 | if (arch64) | |
1503 | { | |
647478e0 UW |
1504 | fill_sprs64 (regcache, &ctx.iar, &ctx.msr, &ctx.cr, &ctx.lr, &ctx.ctr, |
1505 | &ctx.xer, &ctx.fpscr); | |
61c5da0b KB |
1506 | } |
1507 | else | |
1508 | { | |
1509 | /* Problem: ctx.iar etc. are 64 bits, but raw_registers are 32. | |
0d16ee5d UW |
1510 | Solution: use 32-bit temp variables. */ |
1511 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1512 | tmp_fpscr; | |
61c5da0b | 1513 | |
647478e0 UW |
1514 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, &tmp_ctr, |
1515 | &tmp_xer, &tmp_fpscr); | |
672c9795 YQ |
1516 | if (REG_VALID == regcache_register_status (regcache, |
1517 | gdbarch_pc_regnum (gdbarch))) | |
cbe92db4 | 1518 | ctx.iar = tmp_iar; |
672c9795 | 1519 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ps_regnum)) |
cbe92db4 | 1520 | ctx.msr = tmp_msr; |
672c9795 | 1521 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_cr_regnum)) |
cbe92db4 | 1522 | ctx.cr = tmp_cr; |
672c9795 | 1523 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_lr_regnum)) |
cbe92db4 | 1524 | ctx.lr = tmp_lr; |
672c9795 YQ |
1525 | if (REG_VALID == regcache_register_status (regcache, |
1526 | tdep->ppc_ctr_regnum)) | |
cbe92db4 | 1527 | ctx.ctr = tmp_ctr; |
672c9795 YQ |
1528 | if (REG_VALID == regcache_register_status (regcache, |
1529 | tdep->ppc_xer_regnum)) | |
cbe92db4 | 1530 | ctx.xer = tmp_xer; |
672c9795 YQ |
1531 | if (REG_VALID == regcache_register_status (regcache, |
1532 | tdep->ppc_xer_regnum)) | |
0e061eef | 1533 | ctx.fpscr = tmp_fpscr; |
61c5da0b | 1534 | } |
c11d79f2 KB |
1535 | |
1536 | status = pthdb_pthread_setcontext (pd_session, pdtid, &ctx); | |
1537 | if (status != PTHDB_SUCCESS) | |
0963b4bd MS |
1538 | error (_("aix-thread: store_registers: " |
1539 | "pthdb_pthread_setcontext returned %s"), | |
14fa3751 | 1540 | pd_status2str (status)); |
c11d79f2 KB |
1541 | } |
1542 | ||
0fe7bf7b MS |
1543 | /* Store register REGNO if != -1 or all registers otherwise into |
1544 | kernel thread TID. | |
c11d79f2 | 1545 | |
0fe7bf7b MS |
1546 | AIX provides a way to set all of a kernel thread's GPRs, FPRs, or |
1547 | SPRs, but there's no way to set individual registers within those | |
1548 | groups. Therefore, if REGNO != -1, this function stores an entire | |
1549 | group. */ | |
c11d79f2 KB |
1550 | |
1551 | static void | |
647478e0 UW |
1552 | store_regs_kernel_thread (const struct regcache *regcache, int regno, |
1553 | pthdb_tid_t tid) | |
c11d79f2 | 1554 | { |
c7f30c7a UW |
1555 | struct gdbarch *gdbarch = get_regcache_arch (regcache); |
1556 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
063715bf JB |
1557 | uint64_t gprs64[ppc_num_gprs]; |
1558 | uint32_t gprs32[ppc_num_gprs]; | |
1559 | double fprs[ppc_num_fprs]; | |
c11d79f2 | 1560 | struct ptxsprs sprs64; |
61c5da0b KB |
1561 | struct ptsprs sprs32; |
1562 | int i; | |
c11d79f2 | 1563 | |
8e2c28d4 | 1564 | if (debug_aix_thread) |
206d3d3c KB |
1565 | fprintf_unfiltered (gdb_stdlog, |
1566 | "store_regs_kernel_thread tid=%lx regno=%d\n", | |
1567 | (long) tid, regno); | |
c11d79f2 | 1568 | |
0fe7bf7b | 1569 | /* General-purpose registers. */ |
daf6dc85 JB |
1570 | if (regno == -1 |
1571 | || (tdep->ppc_gp0_regnum <= regno | |
1572 | && regno < tdep->ppc_gp0_regnum + ppc_num_fprs)) | |
c11d79f2 | 1573 | { |
c11d79f2 | 1574 | if (arch64) |
61c5da0b | 1575 | { |
cbe92db4 KB |
1576 | /* Pre-fetch: some regs may not be in the cache. */ |
1577 | ptrace64aix (PTT_READ_GPRS, tid, (unsigned long) gprs64, 0, NULL); | |
647478e0 | 1578 | fill_gprs64 (regcache, gprs64); |
61c5da0b KB |
1579 | ptrace64aix (PTT_WRITE_GPRS, tid, (unsigned long) gprs64, 0, NULL); |
1580 | } | |
c11d79f2 | 1581 | else |
61c5da0b | 1582 | { |
cbe92db4 | 1583 | /* Pre-fetch: some regs may not be in the cache. */ |
3b631e37 | 1584 | ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL); |
647478e0 | 1585 | fill_gprs32 (regcache, gprs32); |
3b631e37 | 1586 | ptrace32 (PTT_WRITE_GPRS, tid, (uintptr_t) gprs32, 0, NULL); |
61c5da0b | 1587 | } |
c11d79f2 KB |
1588 | } |
1589 | ||
0fe7bf7b | 1590 | /* Floating-point registers. */ |
c11d79f2 | 1591 | |
c7f30c7a | 1592 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1593 | && (regno == -1 |
1594 | || (regno >= tdep->ppc_fp0_regnum | |
1595 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 | 1596 | { |
cbe92db4 | 1597 | /* Pre-fetch: some regs may not be in the cache. */ |
3b631e37 | 1598 | ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL); |
647478e0 | 1599 | fill_fprs (regcache, fprs); |
3b631e37 | 1600 | ptrace32 (PTT_WRITE_FPRS, tid, (uintptr_t) fprs, 0, NULL); |
c11d79f2 KB |
1601 | } |
1602 | ||
0fe7bf7b | 1603 | /* Special-purpose registers. */ |
c11d79f2 | 1604 | |
9970f04b | 1605 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1606 | { |
1607 | if (arch64) | |
1608 | { | |
cbe92db4 | 1609 | /* Pre-fetch: some registers won't be in the cache. */ |
0fe7bf7b MS |
1610 | ptrace64aix (PTT_READ_SPRS, tid, |
1611 | (unsigned long) &sprs64, 0, NULL); | |
647478e0 UW |
1612 | fill_sprs64 (regcache, &sprs64.pt_iar, &sprs64.pt_msr, |
1613 | &sprs64.pt_cr, &sprs64.pt_lr, &sprs64.pt_ctr, | |
1614 | &sprs64.pt_xer, &sprs64.pt_fpscr); | |
0fe7bf7b MS |
1615 | ptrace64aix (PTT_WRITE_SPRS, tid, |
1616 | (unsigned long) &sprs64, 0, NULL); | |
c11d79f2 KB |
1617 | } |
1618 | else | |
1619 | { | |
0d16ee5d UW |
1620 | /* The contents of "struct ptspr" were declared as "unsigned |
1621 | long" up to AIX 5.2, but are "unsigned int" since 5.3. | |
1622 | Use temporaries to work around this problem. Also, add an | |
1623 | assert here to make sure we fail if the system header files | |
1624 | use "unsigned long", and the size of that type is not what | |
1625 | the headers expect. */ | |
1626 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1627 | tmp_fpscr; | |
1628 | ||
1629 | gdb_assert (sizeof (sprs32.pt_iar) == 4); | |
1630 | ||
cbe92db4 | 1631 | /* Pre-fetch: some registers won't be in the cache. */ |
3b631e37 | 1632 | ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL); |
c11d79f2 | 1633 | |
647478e0 UW |
1634 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, |
1635 | &tmp_ctr, &tmp_xer, &tmp_fpscr); | |
0d16ee5d UW |
1636 | |
1637 | sprs32.pt_iar = tmp_iar; | |
1638 | sprs32.pt_msr = tmp_msr; | |
1639 | sprs32.pt_cr = tmp_cr; | |
1640 | sprs32.pt_lr = tmp_lr; | |
1641 | sprs32.pt_ctr = tmp_ctr; | |
1642 | sprs32.pt_xer = tmp_xer; | |
1643 | sprs32.pt_fpscr = tmp_fpscr; | |
c11d79f2 | 1644 | |
f1a91342 | 1645 | if (tdep->ppc_mq_regnum >= 0) |
672c9795 YQ |
1646 | if (REG_VALID == regcache_register_status (regcache, |
1647 | tdep->ppc_mq_regnum)) | |
647478e0 | 1648 | regcache_raw_collect (regcache, tdep->ppc_mq_regnum, |
822c9732 | 1649 | &sprs32.pt_mq); |
c11d79f2 | 1650 | |
3b631e37 | 1651 | ptrace32 (PTT_WRITE_SPRS, tid, (uintptr_t) &sprs32, 0, NULL); |
c11d79f2 KB |
1652 | } |
1653 | } | |
1654 | } | |
1655 | ||
0fe7bf7b MS |
1656 | /* Store gdb's current view of the register set into the |
1657 | thread/process specified by inferior_ptid. */ | |
c11d79f2 KB |
1658 | |
1659 | static void | |
c7660128 JB |
1660 | aix_thread_store_registers (struct target_ops *ops, |
1661 | struct regcache *regcache, int regno) | |
c11d79f2 KB |
1662 | { |
1663 | struct thread_info *thread; | |
1664 | pthdb_tid_t tid; | |
d30acaa7 | 1665 | struct target_ops *beneath = find_target_beneath (ops); |
c11d79f2 KB |
1666 | |
1667 | if (!PD_TID (inferior_ptid)) | |
d30acaa7 | 1668 | beneath->to_store_registers (beneath, regcache, regno); |
c11d79f2 KB |
1669 | else |
1670 | { | |
e09875d4 | 1671 | thread = find_thread_ptid (inferior_ptid); |
c11d79f2 KB |
1672 | tid = thread->private->tid; |
1673 | ||
1674 | if (tid == PTHDB_INVALID_TID) | |
56be3814 | 1675 | store_regs_user_thread (regcache, thread->private->pdtid); |
c11d79f2 | 1676 | else |
56be3814 | 1677 | store_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1678 | } |
1679 | } | |
1680 | ||
edcc890f | 1681 | /* Implement the to_xfer_partial target_ops method. */ |
037a727e | 1682 | |
9b409511 | 1683 | static enum target_xfer_status |
037a727e UW |
1684 | aix_thread_xfer_partial (struct target_ops *ops, enum target_object object, |
1685 | const char *annex, gdb_byte *readbuf, | |
0963b4bd | 1686 | const gdb_byte *writebuf, |
9b409511 | 1687 | ULONGEST offset, ULONGEST len, ULONGEST *xfered_len) |
c11d79f2 | 1688 | { |
037a727e | 1689 | struct cleanup *old_chain = save_inferior_ptid (); |
9b409511 | 1690 | enum target_xfer_status xfer; |
d30acaa7 | 1691 | struct target_ops *beneath = find_target_beneath (ops); |
14fa3751 | 1692 | |
dfd4cc63 | 1693 | inferior_ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); |
9b409511 YQ |
1694 | xfer = beneath->to_xfer_partial (beneath, object, annex, readbuf, |
1695 | writebuf, offset, len, xfered_len); | |
c11d79f2 | 1696 | |
037a727e UW |
1697 | do_cleanups (old_chain); |
1698 | return xfer; | |
c11d79f2 KB |
1699 | } |
1700 | ||
0fe7bf7b | 1701 | /* Clean up after the inferior exits. */ |
c11d79f2 KB |
1702 | |
1703 | static void | |
136d6dae | 1704 | aix_thread_mourn_inferior (struct target_ops *ops) |
c11d79f2 | 1705 | { |
d30acaa7 JB |
1706 | struct target_ops *beneath = find_target_beneath (ops); |
1707 | ||
c11d79f2 | 1708 | pd_deactivate (); |
d30acaa7 | 1709 | beneath->to_mourn_inferior (beneath); |
c11d79f2 KB |
1710 | } |
1711 | ||
0fe7bf7b | 1712 | /* Return whether thread PID is still valid. */ |
c11d79f2 KB |
1713 | |
1714 | static int | |
c7660128 | 1715 | aix_thread_thread_alive (struct target_ops *ops, ptid_t ptid) |
c11d79f2 | 1716 | { |
7fc0c7b5 | 1717 | struct target_ops *beneath = find_target_beneath (ops); |
d30acaa7 | 1718 | |
c11d79f2 | 1719 | if (!PD_TID (ptid)) |
d30acaa7 | 1720 | return beneath->to_thread_alive (beneath, ptid); |
c11d79f2 | 1721 | |
0fe7bf7b MS |
1722 | /* We update the thread list every time the child stops, so all |
1723 | valid threads should be in the thread list. */ | |
c11d79f2 KB |
1724 | return in_thread_list (ptid); |
1725 | } | |
1726 | ||
0fe7bf7b MS |
1727 | /* Return a printable representation of composite PID for use in |
1728 | "info threads" output. */ | |
c11d79f2 KB |
1729 | |
1730 | static char * | |
117de6a9 | 1731 | aix_thread_pid_to_str (struct target_ops *ops, ptid_t ptid) |
c11d79f2 KB |
1732 | { |
1733 | static char *ret = NULL; | |
7fc0c7b5 | 1734 | struct target_ops *beneath = find_target_beneath (ops); |
c11d79f2 KB |
1735 | |
1736 | if (!PD_TID (ptid)) | |
d30acaa7 | 1737 | return beneath->to_pid_to_str (beneath, ptid); |
c11d79f2 KB |
1738 | |
1739 | /* Free previous return value; a new one will be allocated by | |
b435e160 | 1740 | xstrprintf(). */ |
c11d79f2 KB |
1741 | xfree (ret); |
1742 | ||
edefbb7c | 1743 | ret = xstrprintf (_("Thread %ld"), ptid_get_tid (ptid)); |
c11d79f2 KB |
1744 | return ret; |
1745 | } | |
1746 | ||
0fe7bf7b MS |
1747 | /* Return a printable representation of extra information about |
1748 | THREAD, for use in "info threads" output. */ | |
c11d79f2 KB |
1749 | |
1750 | static char * | |
c15906d8 TT |
1751 | aix_thread_extra_thread_info (struct target_ops *self, |
1752 | struct thread_info *thread) | |
c11d79f2 KB |
1753 | { |
1754 | struct ui_file *buf; | |
1755 | int status; | |
1756 | pthdb_pthread_t pdtid; | |
1757 | pthdb_tid_t tid; | |
1758 | pthdb_state_t state; | |
1759 | pthdb_suspendstate_t suspendstate; | |
1760 | pthdb_detachstate_t detachstate; | |
1761 | int cancelpend; | |
c11d79f2 KB |
1762 | static char *ret = NULL; |
1763 | ||
1764 | if (!PD_TID (thread->ptid)) | |
1765 | return NULL; | |
1766 | ||
1767 | buf = mem_fileopen (); | |
1768 | ||
1769 | pdtid = thread->private->pdtid; | |
1770 | tid = thread->private->tid; | |
1771 | ||
1772 | if (tid != PTHDB_INVALID_TID) | |
edefbb7c | 1773 | /* i18n: Like "thread-identifier %d, [state] running, suspended" */ |
0d16ee5d | 1774 | fprintf_unfiltered (buf, _("tid %d"), (int)tid); |
c11d79f2 KB |
1775 | |
1776 | status = pthdb_pthread_state (pd_session, pdtid, &state); | |
1777 | if (status != PTHDB_SUCCESS) | |
1778 | state = PST_NOTSUP; | |
1779 | fprintf_unfiltered (buf, ", %s", state2str (state)); | |
1780 | ||
0fe7bf7b MS |
1781 | status = pthdb_pthread_suspendstate (pd_session, pdtid, |
1782 | &suspendstate); | |
c11d79f2 | 1783 | if (status == PTHDB_SUCCESS && suspendstate == PSS_SUSPENDED) |
edefbb7c AC |
1784 | /* i18n: Like "Thread-Id %d, [state] running, suspended" */ |
1785 | fprintf_unfiltered (buf, _(", suspended")); | |
c11d79f2 | 1786 | |
0fe7bf7b MS |
1787 | status = pthdb_pthread_detachstate (pd_session, pdtid, |
1788 | &detachstate); | |
c11d79f2 | 1789 | if (status == PTHDB_SUCCESS && detachstate == PDS_DETACHED) |
edefbb7c AC |
1790 | /* i18n: Like "Thread-Id %d, [state] running, detached" */ |
1791 | fprintf_unfiltered (buf, _(", detached")); | |
c11d79f2 KB |
1792 | |
1793 | pthdb_pthread_cancelpend (pd_session, pdtid, &cancelpend); | |
1794 | if (status == PTHDB_SUCCESS && cancelpend) | |
edefbb7c AC |
1795 | /* i18n: Like "Thread-Id %d, [state] running, cancel pending" */ |
1796 | fprintf_unfiltered (buf, _(", cancel pending")); | |
c11d79f2 KB |
1797 | |
1798 | ui_file_write (buf, "", 1); | |
1799 | ||
1800 | xfree (ret); /* Free old buffer. */ | |
1801 | ||
759ef836 | 1802 | ret = ui_file_xstrdup (buf, NULL); |
c11d79f2 KB |
1803 | ui_file_delete (buf); |
1804 | ||
1805 | return ret; | |
1806 | } | |
1807 | ||
c7660128 | 1808 | static ptid_t |
1e6b91a4 | 1809 | aix_thread_get_ada_task_ptid (struct target_ops *self, long lwp, long thread) |
c7660128 JB |
1810 | { |
1811 | return ptid_build (ptid_get_pid (inferior_ptid), 0, thread); | |
1812 | } | |
1813 | ||
206d3d3c | 1814 | /* Initialize target aix_thread_ops. */ |
c11d79f2 KB |
1815 | |
1816 | static void | |
206d3d3c | 1817 | init_aix_thread_ops (void) |
c11d79f2 | 1818 | { |
783425fc PA |
1819 | aix_thread_ops.to_shortname = "aix-threads"; |
1820 | aix_thread_ops.to_longname = _("AIX pthread support"); | |
1821 | aix_thread_ops.to_doc = _("AIX pthread support"); | |
1822 | ||
783425fc PA |
1823 | aix_thread_ops.to_detach = aix_thread_detach; |
1824 | aix_thread_ops.to_resume = aix_thread_resume; | |
1825 | aix_thread_ops.to_wait = aix_thread_wait; | |
1826 | aix_thread_ops.to_fetch_registers = aix_thread_fetch_registers; | |
1827 | aix_thread_ops.to_store_registers = aix_thread_store_registers; | |
1828 | aix_thread_ops.to_xfer_partial = aix_thread_xfer_partial; | |
783425fc PA |
1829 | aix_thread_ops.to_mourn_inferior = aix_thread_mourn_inferior; |
1830 | aix_thread_ops.to_thread_alive = aix_thread_thread_alive; | |
1831 | aix_thread_ops.to_pid_to_str = aix_thread_pid_to_str; | |
1832 | aix_thread_ops.to_extra_thread_info = aix_thread_extra_thread_info; | |
1833 | aix_thread_ops.to_get_ada_task_ptid = aix_thread_get_ada_task_ptid; | |
1834 | aix_thread_ops.to_stratum = thread_stratum; | |
1835 | aix_thread_ops.to_magic = OPS_MAGIC; | |
c11d79f2 KB |
1836 | } |
1837 | ||
1838 | /* Module startup initialization function, automagically called by | |
0fe7bf7b | 1839 | init.c. */ |
c11d79f2 | 1840 | |
e1aca11e JB |
1841 | void _initialize_aix_thread (void); |
1842 | ||
c11d79f2 KB |
1843 | void |
1844 | _initialize_aix_thread (void) | |
1845 | { | |
206d3d3c | 1846 | init_aix_thread_ops (); |
12070676 | 1847 | complete_target_initialization (&aix_thread_ops); |
c11d79f2 | 1848 | |
0fe7bf7b | 1849 | /* Notice when object files get loaded and unloaded. */ |
06d3b283 | 1850 | observer_attach_new_objfile (new_objfile); |
8e2c28d4 | 1851 | |
b3ccfe11 TT |
1852 | /* Add ourselves to inferior_created event chain. |
1853 | This is needed to enable the thread target on "attach". */ | |
1854 | observer_attach_inferior_created (aix_thread_inferior_created); | |
1855 | ||
577b7047 | 1856 | add_setshow_boolean_cmd ("aix-thread", class_maintenance, &debug_aix_thread, |
0963b4bd MS |
1857 | _("Set debugging of AIX thread module."), |
1858 | _("Show debugging of AIX thread module."), | |
1859 | _("Enables debugging output (used to debug GDB)."), | |
1860 | NULL, NULL, | |
1861 | /* FIXME: i18n: Debugging of AIX thread | |
1862 | module is \"%d\". */ | |
1863 | &setdebuglist, &showdebuglist); | |
c11d79f2 | 1864 | } |