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1 | /* Low level interface for debugging AIX 4.3+ pthreads. |
2 | ||
e2882c85 | 3 | Copyright (C) 1999-2018 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" | |
43 | #include "gdbthread.h" | |
44 | #include "target.h" | |
45 | #include "inferior.h" | |
46 | #include "regcache.h" | |
8e2c28d4 | 47 | #include "gdbcmd.h" |
27bae383 | 48 | #include "ppc-tdep.h" |
06d3b283 | 49 | #include "observer.h" |
77e371c0 | 50 | #include "objfiles.h" |
c11d79f2 | 51 | |
c11d79f2 KB |
52 | #include <procinfo.h> |
53 | #include <sys/types.h> | |
54 | #include <sys/ptrace.h> | |
55 | #include <sys/reg.h> | |
c11d79f2 KB |
56 | #include <sched.h> |
57 | #include <sys/pthdebug.h> | |
58 | ||
d645e32e | 59 | #if !HAVE_DECL_GETTHRDS |
eff44fea | 60 | extern int getthrds (pid_t, struct thrdsinfo64 *, int, tid_t *, int); |
d645e32e JB |
61 | #endif |
62 | ||
0fe7bf7b | 63 | /* Whether to emit debugging output. */ |
8e2c28d4 | 64 | static int debug_aix_thread; |
c11d79f2 | 65 | |
0fe7bf7b | 66 | /* In AIX 5.1, functions use pthdb_tid_t instead of tid_t. */ |
c11d79f2 KB |
67 | #ifndef PTHDB_VERSION_3 |
68 | #define pthdb_tid_t tid_t | |
69 | #endif | |
70 | ||
0fe7bf7b | 71 | /* Return whether to treat PID as a debuggable thread id. */ |
c11d79f2 KB |
72 | |
73 | #define PD_TID(ptid) (pd_active && ptid_get_tid (ptid) != 0) | |
74 | ||
c11d79f2 | 75 | /* pthdb_user_t value that we pass to pthdb functions. 0 causes |
0fe7bf7b | 76 | PTHDB_BAD_USER errors, so use 1. */ |
c11d79f2 KB |
77 | |
78 | #define PD_USER 1 | |
79 | ||
0fe7bf7b | 80 | /* Success and failure values returned by pthdb callbacks. */ |
c11d79f2 KB |
81 | |
82 | #define PDC_SUCCESS PTHDB_SUCCESS | |
83 | #define PDC_FAILURE PTHDB_CALLBACK | |
84 | ||
0fe7bf7b | 85 | /* Private data attached to each element in GDB's thread list. */ |
c11d79f2 | 86 | |
7aabaf9d SM |
87 | struct aix_thread_info : public private_thread_info |
88 | { | |
0fe7bf7b | 89 | pthdb_pthread_t pdtid; /* thread's libpthdebug id */ |
c11d79f2 KB |
90 | pthdb_tid_t tid; /* kernel thread id */ |
91 | }; | |
92 | ||
7aabaf9d SM |
93 | /* Return the aix_thread_info attached to THREAD. */ |
94 | ||
95 | static aix_thread_info * | |
96 | get_aix_thread_info (thread_info *thread) | |
97 | { | |
98 | return static_cast<aix_thread_info *> (thread->priv.get ()); | |
99 | } | |
100 | ||
0fe7bf7b | 101 | /* Information about a thread of which libpthdebug is aware. */ |
c11d79f2 KB |
102 | |
103 | struct pd_thread { | |
104 | pthdb_pthread_t pdtid; | |
105 | pthread_t pthid; | |
106 | pthdb_tid_t tid; | |
107 | }; | |
108 | ||
0fe7bf7b | 109 | /* This module's target-specific operations, active while pd_able is true. */ |
c11d79f2 | 110 | |
206d3d3c | 111 | static struct target_ops aix_thread_ops; |
c11d79f2 | 112 | |
0fe7bf7b MS |
113 | /* Address of the function that libpthread will call when libpthdebug |
114 | is ready to be initialized. */ | |
c11d79f2 KB |
115 | |
116 | static CORE_ADDR pd_brk_addr; | |
117 | ||
0fe7bf7b | 118 | /* Whether the current application is debuggable by pthdb. */ |
c11d79f2 KB |
119 | |
120 | static int pd_able = 0; | |
121 | ||
0fe7bf7b | 122 | /* Whether a threaded application is being debugged. */ |
c11d79f2 KB |
123 | |
124 | static int pd_active = 0; | |
125 | ||
0fe7bf7b MS |
126 | /* Whether the current architecture is 64-bit. |
127 | Only valid when pd_able is true. */ | |
c11d79f2 KB |
128 | |
129 | static int arch64; | |
130 | ||
0fe7bf7b | 131 | /* Forward declarations for pthdb callbacks. */ |
c11d79f2 KB |
132 | |
133 | static int pdc_symbol_addrs (pthdb_user_t, pthdb_symbol_t *, int); | |
134 | static int pdc_read_data (pthdb_user_t, void *, pthdb_addr_t, size_t); | |
135 | static int pdc_write_data (pthdb_user_t, void *, pthdb_addr_t, size_t); | |
136 | static int pdc_read_regs (pthdb_user_t user, pthdb_tid_t tid, | |
0fe7bf7b MS |
137 | unsigned long long flags, |
138 | pthdb_context_t *context); | |
c11d79f2 | 139 | static int pdc_write_regs (pthdb_user_t user, pthdb_tid_t tid, |
0fe7bf7b MS |
140 | unsigned long long flags, |
141 | pthdb_context_t *context); | |
c11d79f2 KB |
142 | static int pdc_alloc (pthdb_user_t, size_t, void **); |
143 | static int pdc_realloc (pthdb_user_t, void *, size_t, void **); | |
144 | static int pdc_dealloc (pthdb_user_t, void *); | |
145 | ||
0fe7bf7b | 146 | /* pthdb callbacks. */ |
c11d79f2 KB |
147 | |
148 | static pthdb_callbacks_t pd_callbacks = { | |
149 | pdc_symbol_addrs, | |
150 | pdc_read_data, | |
151 | pdc_write_data, | |
152 | pdc_read_regs, | |
153 | pdc_write_regs, | |
154 | pdc_alloc, | |
155 | pdc_realloc, | |
156 | pdc_dealloc, | |
157 | NULL | |
158 | }; | |
159 | ||
0fe7bf7b | 160 | /* Current pthdb session. */ |
c11d79f2 KB |
161 | |
162 | static pthdb_session_t pd_session; | |
163 | ||
0fe7bf7b MS |
164 | /* Return a printable representation of pthdebug function return |
165 | STATUS. */ | |
c11d79f2 | 166 | |
0a31ccfb | 167 | static const char * |
c11d79f2 KB |
168 | pd_status2str (int status) |
169 | { | |
170 | switch (status) | |
171 | { | |
172 | case PTHDB_SUCCESS: return "SUCCESS"; | |
173 | case PTHDB_NOSYS: return "NOSYS"; | |
174 | case PTHDB_NOTSUP: return "NOTSUP"; | |
175 | case PTHDB_BAD_VERSION: return "BAD_VERSION"; | |
176 | case PTHDB_BAD_USER: return "BAD_USER"; | |
177 | case PTHDB_BAD_SESSION: return "BAD_SESSION"; | |
178 | case PTHDB_BAD_MODE: return "BAD_MODE"; | |
179 | case PTHDB_BAD_FLAGS: return "BAD_FLAGS"; | |
180 | case PTHDB_BAD_CALLBACK: return "BAD_CALLBACK"; | |
181 | case PTHDB_BAD_POINTER: return "BAD_POINTER"; | |
182 | case PTHDB_BAD_CMD: return "BAD_CMD"; | |
183 | case PTHDB_BAD_PTHREAD: return "BAD_PTHREAD"; | |
184 | case PTHDB_BAD_ATTR: return "BAD_ATTR"; | |
185 | case PTHDB_BAD_MUTEX: return "BAD_MUTEX"; | |
186 | case PTHDB_BAD_MUTEXATTR: return "BAD_MUTEXATTR"; | |
187 | case PTHDB_BAD_COND: return "BAD_COND"; | |
188 | case PTHDB_BAD_CONDATTR: return "BAD_CONDATTR"; | |
189 | case PTHDB_BAD_RWLOCK: return "BAD_RWLOCK"; | |
190 | case PTHDB_BAD_RWLOCKATTR: return "BAD_RWLOCKATTR"; | |
191 | case PTHDB_BAD_KEY: return "BAD_KEY"; | |
192 | case PTHDB_BAD_PTID: return "BAD_PTID"; | |
193 | case PTHDB_BAD_TID: return "BAD_TID"; | |
194 | case PTHDB_CALLBACK: return "CALLBACK"; | |
195 | case PTHDB_CONTEXT: return "CONTEXT"; | |
196 | case PTHDB_HELD: return "HELD"; | |
197 | case PTHDB_NOT_HELD: return "NOT_HELD"; | |
198 | case PTHDB_MEMORY: return "MEMORY"; | |
199 | case PTHDB_NOT_PTHREADED: return "NOT_PTHREADED"; | |
200 | case PTHDB_SYMBOL: return "SYMBOL"; | |
201 | case PTHDB_NOT_AVAIL: return "NOT_AVAIL"; | |
202 | case PTHDB_INTERNAL: return "INTERNAL"; | |
203 | default: return "UNKNOWN"; | |
204 | } | |
205 | } | |
206 | ||
0fe7bf7b MS |
207 | /* A call to ptrace(REQ, ID, ...) just returned RET. Check for |
208 | exceptional conditions and either return nonlocally or else return | |
209 | 1 for success and 0 for failure. */ | |
c11d79f2 KB |
210 | |
211 | static int | |
212 | ptrace_check (int req, int id, int ret) | |
213 | { | |
214 | if (ret == 0 && !errno) | |
215 | return 1; | |
216 | ||
0fe7bf7b MS |
217 | /* According to ptrace(2), ptrace may fail with EPERM if "the |
218 | Identifier parameter corresponds to a kernel thread which is | |
219 | stopped in kernel mode and whose computational state cannot be | |
220 | read or written." This happens quite often with register reads. */ | |
c11d79f2 KB |
221 | |
222 | switch (req) | |
223 | { | |
224 | case PTT_READ_GPRS: | |
225 | case PTT_READ_FPRS: | |
226 | case PTT_READ_SPRS: | |
227 | if (ret == -1 && errno == EPERM) | |
42cc437f KB |
228 | { |
229 | if (debug_aix_thread) | |
0fe7bf7b | 230 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 231 | "ptrace (%d, %d) = %d (errno = %d)\n", |
42cc437f KB |
232 | req, id, ret, errno); |
233 | return ret == -1 ? 0 : 1; | |
234 | } | |
c11d79f2 KB |
235 | break; |
236 | } | |
edefbb7c | 237 | error (_("aix-thread: ptrace (%d, %d) returned %d (errno = %d %s)"), |
be006b8b | 238 | req, id, ret, errno, safe_strerror (errno)); |
0fe7bf7b | 239 | return 0; /* Not reached. */ |
c11d79f2 KB |
240 | } |
241 | ||
fecf803e UW |
242 | /* Call ptracex (REQ, ID, ADDR, DATA, BUF) or |
243 | ptrace64 (REQ, ID, ADDR, DATA, BUF) if HAVE_PTRACE64. | |
244 | Return success. */ | |
245 | ||
246 | #ifdef HAVE_PTRACE64 | |
247 | # define ptracex(request, pid, addr, data, buf) \ | |
248 | ptrace64 (request, pid, addr, data, buf) | |
249 | #endif | |
c11d79f2 KB |
250 | |
251 | static int | |
252 | ptrace64aix (int req, int id, long long addr, int data, int *buf) | |
253 | { | |
254 | errno = 0; | |
255 | return ptrace_check (req, id, ptracex (req, id, addr, data, buf)); | |
256 | } | |
257 | ||
fecf803e UW |
258 | /* Call ptrace (REQ, ID, ADDR, DATA, BUF) or |
259 | ptrace64 (REQ, ID, ADDR, DATA, BUF) if HAVE_PTRACE64. | |
260 | Return success. */ | |
261 | ||
262 | #ifdef HAVE_PTRACE64 | |
263 | # define ptrace(request, pid, addr, data, buf) \ | |
264 | ptrace64 (request, pid, addr, data, buf) | |
265 | # define addr_ptr long long | |
266 | #else | |
267 | # define addr_ptr int * | |
268 | #endif | |
c11d79f2 KB |
269 | |
270 | static int | |
fecf803e | 271 | ptrace32 (int req, int id, addr_ptr addr, int data, int *buf) |
c11d79f2 KB |
272 | { |
273 | errno = 0; | |
0fe7bf7b | 274 | return ptrace_check (req, id, |
26f0edc1 | 275 | ptrace (req, id, addr, data, buf)); |
c11d79f2 KB |
276 | } |
277 | ||
0fe7bf7b MS |
278 | /* If *PIDP is a composite process/thread id, convert it to a |
279 | process id. */ | |
c11d79f2 KB |
280 | |
281 | static void | |
282 | pid_to_prc (ptid_t *ptidp) | |
283 | { | |
284 | ptid_t ptid; | |
285 | ||
286 | ptid = *ptidp; | |
287 | if (PD_TID (ptid)) | |
dfd4cc63 | 288 | *ptidp = pid_to_ptid (ptid_get_pid (ptid)); |
c11d79f2 KB |
289 | } |
290 | ||
0fe7bf7b MS |
291 | /* pthdb callback: for <i> from 0 to COUNT, set SYMBOLS[<i>].addr to |
292 | the address of SYMBOLS[<i>].name. */ | |
c11d79f2 KB |
293 | |
294 | static int | |
295 | pdc_symbol_addrs (pthdb_user_t user, pthdb_symbol_t *symbols, int count) | |
296 | { | |
3b7344d5 | 297 | struct bound_minimal_symbol ms; |
c11d79f2 KB |
298 | int i; |
299 | char *name; | |
300 | ||
8e2c28d4 KB |
301 | if (debug_aix_thread) |
302 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 303 | "pdc_symbol_addrs (user = %ld, symbols = 0x%lx, count = %d)\n", |
8e2c28d4 | 304 | user, (long) symbols, count); |
c11d79f2 KB |
305 | |
306 | for (i = 0; i < count; i++) | |
307 | { | |
308 | name = symbols[i].name; | |
8e2c28d4 | 309 | if (debug_aix_thread) |
0fe7bf7b | 310 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 311 | " symbols[%d].name = \"%s\"\n", i, name); |
c11d79f2 KB |
312 | |
313 | if (!*name) | |
314 | symbols[i].addr = 0; | |
315 | else | |
316 | { | |
3b7344d5 TT |
317 | ms = lookup_minimal_symbol (name, NULL, NULL); |
318 | if (ms.minsym == NULL) | |
c11d79f2 | 319 | { |
8e2c28d4 | 320 | if (debug_aix_thread) |
27bae383 | 321 | fprintf_unfiltered (gdb_stdlog, " returning PDC_FAILURE\n"); |
c11d79f2 KB |
322 | return PDC_FAILURE; |
323 | } | |
77e371c0 | 324 | symbols[i].addr = BMSYMBOL_VALUE_ADDRESS (ms); |
c11d79f2 | 325 | } |
8e2c28d4 | 326 | if (debug_aix_thread) |
27bae383 | 327 | fprintf_unfiltered (gdb_stdlog, " symbols[%d].addr = %s\n", |
bb599908 | 328 | i, hex_string (symbols[i].addr)); |
c11d79f2 | 329 | } |
8e2c28d4 | 330 | if (debug_aix_thread) |
27bae383 | 331 | fprintf_unfiltered (gdb_stdlog, " returning PDC_SUCCESS\n"); |
c11d79f2 KB |
332 | return PDC_SUCCESS; |
333 | } | |
334 | ||
0fe7bf7b MS |
335 | /* Read registers call back function should be able to read the |
336 | context information of a debuggee kernel thread from an active | |
337 | process or from a core file. The information should be formatted | |
338 | in context64 form for both 32-bit and 64-bit process. | |
339 | If successful return 0, else non-zero is returned. */ | |
340 | ||
c11d79f2 KB |
341 | static int |
342 | pdc_read_regs (pthdb_user_t user, | |
343 | pthdb_tid_t tid, | |
344 | unsigned long long flags, | |
345 | pthdb_context_t *context) | |
346 | { | |
0fe7bf7b MS |
347 | /* This function doesn't appear to be used, so we could probably |
348 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
349 | complain and several thread debug functions will fail. In case | |
350 | this is needed, I have implemented what I think it should do, | |
351 | however this code is untested. */ | |
352 | ||
063715bf JB |
353 | uint64_t gprs64[ppc_num_gprs]; |
354 | uint32_t gprs32[ppc_num_gprs]; | |
355 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
356 | struct ptxsprs sprs64; |
357 | struct ptsprs sprs32; | |
358 | ||
8e2c28d4 | 359 | if (debug_aix_thread) |
27bae383 | 360 | fprintf_unfiltered (gdb_stdlog, "pdc_read_regs tid=%d flags=%s\n", |
bb599908 | 361 | (int) tid, hex_string (flags)); |
c11d79f2 | 362 | |
0fe7bf7b | 363 | /* General-purpose registers. */ |
c11d79f2 KB |
364 | if (flags & PTHDB_FLAG_GPRS) |
365 | { | |
366 | if (arch64) | |
367 | { | |
0fe7bf7b MS |
368 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
369 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 KB |
370 | memset (gprs64, 0, sizeof (gprs64)); |
371 | memcpy (context->gpr, gprs64, sizeof(gprs64)); | |
372 | } | |
373 | else | |
374 | { | |
3b631e37 | 375 | if (!ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL)) |
c11d79f2 KB |
376 | memset (gprs32, 0, sizeof (gprs32)); |
377 | memcpy (context->gpr, gprs32, sizeof(gprs32)); | |
378 | } | |
379 | } | |
380 | ||
0fe7bf7b | 381 | /* Floating-point registers. */ |
c11d79f2 KB |
382 | if (flags & PTHDB_FLAG_FPRS) |
383 | { | |
3b631e37 | 384 | if (!ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL)) |
c11d79f2 | 385 | memset (fprs, 0, sizeof (fprs)); |
46bba1ef | 386 | memcpy (context->fpr, fprs, sizeof(fprs)); |
c11d79f2 KB |
387 | } |
388 | ||
0fe7bf7b | 389 | /* Special-purpose registers. */ |
c11d79f2 KB |
390 | if (flags & PTHDB_FLAG_SPRS) |
391 | { | |
392 | if (arch64) | |
393 | { | |
0fe7bf7b MS |
394 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
395 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 KB |
396 | memset (&sprs64, 0, sizeof (sprs64)); |
397 | memcpy (&context->msr, &sprs64, sizeof(sprs64)); | |
398 | } | |
399 | else | |
400 | { | |
3b631e37 | 401 | if (!ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL)) |
c11d79f2 KB |
402 | memset (&sprs32, 0, sizeof (sprs32)); |
403 | memcpy (&context->msr, &sprs32, sizeof(sprs32)); | |
404 | } | |
405 | } | |
406 | return 0; | |
407 | } | |
408 | ||
0fe7bf7b | 409 | /* Write register function should be able to write requested context |
0963b4bd | 410 | information to specified debuggee's kernel thread id. |
0fe7bf7b MS |
411 | If successful return 0, else non-zero is returned. */ |
412 | ||
c11d79f2 KB |
413 | static int |
414 | pdc_write_regs (pthdb_user_t user, | |
415 | pthdb_tid_t tid, | |
416 | unsigned long long flags, | |
417 | pthdb_context_t *context) | |
418 | { | |
0fe7bf7b MS |
419 | /* This function doesn't appear to be used, so we could probably |
420 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
421 | complain and several thread debug functions will fail. In case | |
422 | this is needed, I have implemented what I think it should do, | |
423 | however this code is untested. */ | |
c11d79f2 | 424 | |
8e2c28d4 | 425 | if (debug_aix_thread) |
27bae383 | 426 | fprintf_unfiltered (gdb_stdlog, "pdc_write_regs tid=%d flags=%s\n", |
bb599908 | 427 | (int) tid, hex_string (flags)); |
c11d79f2 | 428 | |
0fe7bf7b | 429 | /* General-purpose registers. */ |
c11d79f2 KB |
430 | if (flags & PTHDB_FLAG_GPRS) |
431 | { | |
432 | if (arch64) | |
0fe7bf7b | 433 | ptrace64aix (PTT_WRITE_GPRS, tid, |
206d3d3c | 434 | (unsigned long) context->gpr, 0, NULL); |
c11d79f2 | 435 | else |
3b631e37 | 436 | ptrace32 (PTT_WRITE_GPRS, tid, (uintptr_t) context->gpr, 0, NULL); |
c11d79f2 KB |
437 | } |
438 | ||
0fe7bf7b | 439 | /* Floating-point registers. */ |
c11d79f2 KB |
440 | if (flags & PTHDB_FLAG_FPRS) |
441 | { | |
3b631e37 | 442 | ptrace32 (PTT_WRITE_FPRS, tid, (uintptr_t) context->fpr, 0, NULL); |
c11d79f2 KB |
443 | } |
444 | ||
0fe7bf7b | 445 | /* Special-purpose registers. */ |
c11d79f2 KB |
446 | if (flags & PTHDB_FLAG_SPRS) |
447 | { | |
448 | if (arch64) | |
449 | { | |
0fe7bf7b MS |
450 | ptrace64aix (PTT_WRITE_SPRS, tid, |
451 | (unsigned long) &context->msr, 0, NULL); | |
c11d79f2 KB |
452 | } |
453 | else | |
454 | { | |
3b631e37 | 455 | ptrace32 (PTT_WRITE_SPRS, tid, (uintptr_t) &context->msr, 0, NULL); |
c11d79f2 KB |
456 | } |
457 | } | |
458 | return 0; | |
459 | } | |
460 | ||
0fe7bf7b | 461 | /* pthdb callback: read LEN bytes from process ADDR into BUF. */ |
c11d79f2 KB |
462 | |
463 | static int | |
0fe7bf7b MS |
464 | pdc_read_data (pthdb_user_t user, void *buf, |
465 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
466 | { |
467 | int status, ret; | |
468 | ||
8e2c28d4 KB |
469 | if (debug_aix_thread) |
470 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 471 | "pdc_read_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 472 | user, (long) buf, hex_string (addr), len); |
c11d79f2 | 473 | |
71829b1a | 474 | status = target_read_memory (addr, (gdb_byte *) buf, len); |
c11d79f2 KB |
475 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; |
476 | ||
8e2c28d4 | 477 | if (debug_aix_thread) |
27bae383 | 478 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", |
0fe7bf7b | 479 | status, pd_status2str (ret)); |
c11d79f2 KB |
480 | return ret; |
481 | } | |
482 | ||
0fe7bf7b | 483 | /* pthdb callback: write LEN bytes from BUF to process ADDR. */ |
c11d79f2 KB |
484 | |
485 | static int | |
0fe7bf7b MS |
486 | pdc_write_data (pthdb_user_t user, void *buf, |
487 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
488 | { |
489 | int status, ret; | |
490 | ||
8e2c28d4 KB |
491 | if (debug_aix_thread) |
492 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 493 | "pdc_write_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 494 | user, (long) buf, hex_string (addr), len); |
c11d79f2 | 495 | |
71829b1a | 496 | status = target_write_memory (addr, (gdb_byte *) buf, len); |
c11d79f2 KB |
497 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; |
498 | ||
8e2c28d4 | 499 | if (debug_aix_thread) |
27bae383 | 500 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", status, |
8e2c28d4 | 501 | pd_status2str (ret)); |
c11d79f2 KB |
502 | return ret; |
503 | } | |
504 | ||
0fe7bf7b MS |
505 | /* pthdb callback: allocate a LEN-byte buffer and store a pointer to it |
506 | in BUFP. */ | |
c11d79f2 KB |
507 | |
508 | static int | |
509 | pdc_alloc (pthdb_user_t user, size_t len, void **bufp) | |
510 | { | |
8e2c28d4 KB |
511 | if (debug_aix_thread) |
512 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 513 | "pdc_alloc (user = %ld, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 514 | user, len, (long) bufp); |
c11d79f2 | 515 | *bufp = xmalloc (len); |
8e2c28d4 | 516 | if (debug_aix_thread) |
0fe7bf7b | 517 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 518 | " malloc returned 0x%lx\n", (long) *bufp); |
0fe7bf7b MS |
519 | |
520 | /* Note: xmalloc() can't return 0; therefore PDC_FAILURE will never | |
521 | be returned. */ | |
522 | ||
c11d79f2 KB |
523 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
524 | } | |
525 | ||
0fe7bf7b MS |
526 | /* pthdb callback: reallocate BUF, which was allocated by the alloc or |
527 | realloc callback, so that it contains LEN bytes, and store a | |
528 | pointer to the result in BUFP. */ | |
c11d79f2 KB |
529 | |
530 | static int | |
531 | pdc_realloc (pthdb_user_t user, void *buf, size_t len, void **bufp) | |
532 | { | |
8e2c28d4 KB |
533 | if (debug_aix_thread) |
534 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 535 | "pdc_realloc (user = %ld, buf = 0x%lx, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 536 | user, (long) buf, len, (long) bufp); |
be006b8b | 537 | *bufp = xrealloc (buf, len); |
8e2c28d4 | 538 | if (debug_aix_thread) |
0fe7bf7b | 539 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 540 | " realloc returned 0x%lx\n", (long) *bufp); |
c11d79f2 KB |
541 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
542 | } | |
543 | ||
0fe7bf7b MS |
544 | /* pthdb callback: free BUF, which was allocated by the alloc or |
545 | realloc callback. */ | |
c11d79f2 KB |
546 | |
547 | static int | |
548 | pdc_dealloc (pthdb_user_t user, void *buf) | |
549 | { | |
8e2c28d4 | 550 | if (debug_aix_thread) |
0fe7bf7b | 551 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 552 | "pdc_free (user = %ld, buf = 0x%lx)\n", user, |
8e2c28d4 | 553 | (long) buf); |
c11d79f2 KB |
554 | xfree (buf); |
555 | return PDC_SUCCESS; | |
556 | } | |
557 | ||
0fe7bf7b | 558 | /* Return a printable representation of pthread STATE. */ |
c11d79f2 KB |
559 | |
560 | static char * | |
561 | state2str (pthdb_state_t state) | |
562 | { | |
563 | switch (state) | |
564 | { | |
edefbb7c AC |
565 | case PST_IDLE: |
566 | /* i18n: Like "Thread-Id %d, [state] idle" */ | |
567 | return _("idle"); /* being created */ | |
568 | case PST_RUN: | |
569 | /* i18n: Like "Thread-Id %d, [state] running" */ | |
570 | return _("running"); /* running */ | |
571 | case PST_SLEEP: | |
572 | /* i18n: Like "Thread-Id %d, [state] sleeping" */ | |
573 | return _("sleeping"); /* awaiting an event */ | |
574 | case PST_READY: | |
575 | /* i18n: Like "Thread-Id %d, [state] ready" */ | |
576 | return _("ready"); /* runnable */ | |
577 | case PST_TERM: | |
578 | /* i18n: Like "Thread-Id %d, [state] finished" */ | |
579 | return _("finished"); /* awaiting a join/detach */ | |
580 | default: | |
581 | /* i18n: Like "Thread-Id %d, [state] unknown" */ | |
582 | return _("unknown"); | |
c11d79f2 KB |
583 | } |
584 | } | |
585 | ||
0fe7bf7b | 586 | /* qsort() comparison function for sorting pd_thread structs by pthid. */ |
c11d79f2 KB |
587 | |
588 | static int | |
589 | pcmp (const void *p1v, const void *p2v) | |
590 | { | |
591 | struct pd_thread *p1 = (struct pd_thread *) p1v; | |
592 | struct pd_thread *p2 = (struct pd_thread *) p2v; | |
593 | return p1->pthid < p2->pthid ? -1 : p1->pthid > p2->pthid; | |
594 | } | |
595 | ||
77f0be4e JB |
596 | /* iterate_over_threads() callback for counting GDB threads. |
597 | ||
598 | Do not count the main thread (whose tid is zero). This matches | |
599 | the list of threads provided by the pthreaddebug library, which | |
600 | does not include that main thread either, and thus allows us | |
601 | to compare the two lists. */ | |
c11d79f2 KB |
602 | |
603 | static int | |
604 | giter_count (struct thread_info *thread, void *countp) | |
605 | { | |
77f0be4e JB |
606 | if (PD_TID (thread->ptid)) |
607 | (*(int *) countp)++; | |
c11d79f2 KB |
608 | return 0; |
609 | } | |
610 | ||
77f0be4e JB |
611 | /* iterate_over_threads() callback for accumulating GDB thread pids. |
612 | ||
613 | Do not include the main thread (whose tid is zero). This matches | |
614 | the list of threads provided by the pthreaddebug library, which | |
615 | does not include that main thread either, and thus allows us | |
616 | to compare the two lists. */ | |
c11d79f2 KB |
617 | |
618 | static int | |
619 | giter_accum (struct thread_info *thread, void *bufp) | |
620 | { | |
77f0be4e JB |
621 | if (PD_TID (thread->ptid)) |
622 | { | |
623 | **(struct thread_info ***) bufp = thread; | |
624 | (*(struct thread_info ***) bufp)++; | |
625 | } | |
c11d79f2 KB |
626 | return 0; |
627 | } | |
628 | ||
629 | /* ptid comparison function */ | |
0fe7bf7b | 630 | |
c11d79f2 KB |
631 | static int |
632 | ptid_cmp (ptid_t ptid1, ptid_t ptid2) | |
633 | { | |
634 | int pid1, pid2; | |
635 | ||
636 | if (ptid_get_pid (ptid1) < ptid_get_pid (ptid2)) | |
637 | return -1; | |
638 | else if (ptid_get_pid (ptid1) > ptid_get_pid (ptid2)) | |
639 | return 1; | |
640 | else if (ptid_get_tid (ptid1) < ptid_get_tid (ptid2)) | |
641 | return -1; | |
642 | else if (ptid_get_tid (ptid1) > ptid_get_tid (ptid2)) | |
643 | return 1; | |
644 | else if (ptid_get_lwp (ptid1) < ptid_get_lwp (ptid2)) | |
645 | return -1; | |
646 | else if (ptid_get_lwp (ptid1) > ptid_get_lwp (ptid2)) | |
647 | return 1; | |
648 | else | |
649 | return 0; | |
650 | } | |
651 | ||
0fe7bf7b | 652 | /* qsort() comparison function for sorting thread_info structs by pid. */ |
c11d79f2 KB |
653 | |
654 | static int | |
655 | gcmp (const void *t1v, const void *t2v) | |
656 | { | |
657 | struct thread_info *t1 = *(struct thread_info **) t1v; | |
658 | struct thread_info *t2 = *(struct thread_info **) t2v; | |
659 | return ptid_cmp (t1->ptid, t2->ptid); | |
660 | } | |
661 | ||
9ad7bec7 JB |
662 | /* Search through the list of all kernel threads for the thread |
663 | that has stopped on a SIGTRAP signal, and return its TID. | |
664 | Return 0 if none found. */ | |
665 | ||
666 | static pthdb_tid_t | |
667 | get_signaled_thread (void) | |
668 | { | |
669 | struct thrdsinfo64 thrinf; | |
eff44fea | 670 | tid_t ktid = 0; |
9ad7bec7 JB |
671 | int result = 0; |
672 | ||
9ad7bec7 JB |
673 | while (1) |
674 | { | |
dfd4cc63 | 675 | if (getthrds (ptid_get_pid (inferior_ptid), &thrinf, |
9ad7bec7 JB |
676 | sizeof (thrinf), &ktid, 1) != 1) |
677 | break; | |
678 | ||
679 | if (thrinf.ti_cursig == SIGTRAP) | |
680 | return thrinf.ti_tid; | |
681 | } | |
682 | ||
683 | /* Didn't find any thread stopped on a SIGTRAP signal. */ | |
684 | return 0; | |
685 | } | |
686 | ||
c11d79f2 KB |
687 | /* Synchronize GDB's thread list with libpthdebug's. |
688 | ||
689 | There are some benefits of doing this every time the inferior stops: | |
690 | ||
0fe7bf7b MS |
691 | - allows users to run thread-specific commands without needing to |
692 | run "info threads" first | |
c11d79f2 KB |
693 | |
694 | - helps pthdb_tid_pthread() work properly (see "libpthdebug | |
695 | peculiarities" at the top of this module) | |
696 | ||
0fe7bf7b MS |
697 | - simplifies the demands placed on libpthdebug, which seems to |
698 | have difficulty with certain call patterns */ | |
c11d79f2 KB |
699 | |
700 | static void | |
701 | sync_threadlists (void) | |
702 | { | |
703 | int cmd, status, infpid; | |
704 | int pcount, psize, pi, gcount, gi; | |
705 | struct pd_thread *pbuf; | |
706 | struct thread_info **gbuf, **g, *thread; | |
707 | pthdb_pthread_t pdtid; | |
708 | pthread_t pthid; | |
709 | pthdb_tid_t tid; | |
c11d79f2 | 710 | |
0fe7bf7b | 711 | /* Accumulate an array of libpthdebug threads sorted by pthread id. */ |
c11d79f2 KB |
712 | |
713 | pcount = 0; | |
714 | psize = 1; | |
8d749320 | 715 | pbuf = XNEWVEC (struct pd_thread, psize); |
c11d79f2 KB |
716 | |
717 | for (cmd = PTHDB_LIST_FIRST;; cmd = PTHDB_LIST_NEXT) | |
718 | { | |
719 | status = pthdb_pthread (pd_session, &pdtid, cmd); | |
720 | if (status != PTHDB_SUCCESS || pdtid == PTHDB_INVALID_PTHREAD) | |
721 | break; | |
722 | ||
723 | status = pthdb_pthread_ptid (pd_session, pdtid, &pthid); | |
724 | if (status != PTHDB_SUCCESS || pthid == PTHDB_INVALID_PTID) | |
725 | continue; | |
726 | ||
727 | if (pcount == psize) | |
728 | { | |
729 | psize *= 2; | |
0fe7bf7b MS |
730 | pbuf = (struct pd_thread *) xrealloc (pbuf, |
731 | psize * sizeof *pbuf); | |
c11d79f2 KB |
732 | } |
733 | pbuf[pcount].pdtid = pdtid; | |
734 | pbuf[pcount].pthid = pthid; | |
735 | pcount++; | |
736 | } | |
737 | ||
738 | for (pi = 0; pi < pcount; pi++) | |
739 | { | |
740 | status = pthdb_pthread_tid (pd_session, pbuf[pi].pdtid, &tid); | |
741 | if (status != PTHDB_SUCCESS) | |
742 | tid = PTHDB_INVALID_TID; | |
743 | pbuf[pi].tid = tid; | |
744 | } | |
745 | ||
746 | qsort (pbuf, pcount, sizeof *pbuf, pcmp); | |
747 | ||
0fe7bf7b | 748 | /* Accumulate an array of GDB threads sorted by pid. */ |
c11d79f2 KB |
749 | |
750 | gcount = 0; | |
751 | iterate_over_threads (giter_count, &gcount); | |
8d749320 | 752 | g = gbuf = XNEWVEC (struct thread_info *, gcount); |
c11d79f2 KB |
753 | iterate_over_threads (giter_accum, &g); |
754 | qsort (gbuf, gcount, sizeof *gbuf, gcmp); | |
755 | ||
0fe7bf7b | 756 | /* Apply differences between the two arrays to GDB's thread list. */ |
c11d79f2 | 757 | |
dfd4cc63 | 758 | infpid = ptid_get_pid (inferior_ptid); |
c11d79f2 KB |
759 | for (pi = gi = 0; pi < pcount || gi < gcount;) |
760 | { | |
c11d79f2 | 761 | if (pi == pcount) |
c11d79f2 | 762 | { |
42cc437f | 763 | delete_thread (gbuf[gi]->ptid); |
c11d79f2 KB |
764 | gi++; |
765 | } | |
42cc437f | 766 | else if (gi == gcount) |
c11d79f2 | 767 | { |
7aabaf9d SM |
768 | aix_thread_info *priv = new aix_thread_info; |
769 | priv->pdtid = pbuf[pi].pdtid; | |
770 | priv->tid = pbuf[pi].tid; | |
771 | ||
772 | thread = add_thread_with_info (ptid_t (infpid, 0, pbuf[pi].pthid), priv); | |
773 | ||
c11d79f2 KB |
774 | pi++; |
775 | } | |
42cc437f KB |
776 | else |
777 | { | |
778 | ptid_t pptid, gptid; | |
779 | int cmp_result; | |
780 | ||
dfd4cc63 | 781 | pptid = ptid_build (infpid, 0, pbuf[pi].pthid); |
42cc437f KB |
782 | gptid = gbuf[gi]->ptid; |
783 | pdtid = pbuf[pi].pdtid; | |
784 | tid = pbuf[pi].tid; | |
c11d79f2 | 785 | |
42cc437f KB |
786 | cmp_result = ptid_cmp (pptid, gptid); |
787 | ||
788 | if (cmp_result == 0) | |
789 | { | |
7aabaf9d SM |
790 | aix_thread_info *priv = get_aix_thread_info (gbuf[gi]); |
791 | ||
792 | priv->pdtid = pdtid; | |
793 | priv->tid = tid; | |
42cc437f KB |
794 | pi++; |
795 | gi++; | |
796 | } | |
797 | else if (cmp_result > 0) | |
798 | { | |
799 | delete_thread (gptid); | |
800 | gi++; | |
801 | } | |
802 | else | |
803 | { | |
804 | thread = add_thread (pptid); | |
7aabaf9d SM |
805 | |
806 | aix_thread_info *priv = new aix_thread_info; | |
807 | thread->priv.reset (priv); | |
808 | priv->pdtid = pdtid; | |
809 | priv->tid = tid; | |
42cc437f KB |
810 | pi++; |
811 | } | |
812 | } | |
c11d79f2 KB |
813 | } |
814 | ||
815 | xfree (pbuf); | |
816 | xfree (gbuf); | |
817 | } | |
818 | ||
9ad7bec7 JB |
819 | /* Iterate_over_threads() callback for locating a thread, using |
820 | the TID of its associated kernel thread. */ | |
c11d79f2 KB |
821 | |
822 | static int | |
9ad7bec7 | 823 | iter_tid (struct thread_info *thread, void *tidp) |
c11d79f2 | 824 | { |
9ad7bec7 | 825 | const pthdb_tid_t tid = *(pthdb_tid_t *)tidp; |
7aabaf9d | 826 | aix_thread_info *priv = get_aix_thread_info (thread); |
c11d79f2 | 827 | |
7aabaf9d | 828 | return priv->tid == tid; |
c11d79f2 KB |
829 | } |
830 | ||
0fe7bf7b MS |
831 | /* Synchronize libpthdebug's state with the inferior and with GDB, |
832 | generate a composite process/thread <pid> for the current thread, | |
833 | set inferior_ptid to <pid> if SET_INFPID, and return <pid>. */ | |
c11d79f2 KB |
834 | |
835 | static ptid_t | |
836 | pd_update (int set_infpid) | |
837 | { | |
838 | int status; | |
839 | ptid_t ptid; | |
9ad7bec7 JB |
840 | pthdb_tid_t tid; |
841 | struct thread_info *thread = NULL; | |
c11d79f2 KB |
842 | |
843 | if (!pd_active) | |
844 | return inferior_ptid; | |
845 | ||
846 | status = pthdb_session_update (pd_session); | |
847 | if (status != PTHDB_SUCCESS) | |
848 | return inferior_ptid; | |
849 | ||
850 | sync_threadlists (); | |
851 | ||
0fe7bf7b | 852 | /* Define "current thread" as one that just received a trap signal. */ |
c11d79f2 | 853 | |
9ad7bec7 JB |
854 | tid = get_signaled_thread (); |
855 | if (tid != 0) | |
856 | thread = iterate_over_threads (iter_tid, &tid); | |
c11d79f2 KB |
857 | if (!thread) |
858 | ptid = inferior_ptid; | |
859 | else | |
860 | { | |
861 | ptid = thread->ptid; | |
862 | if (set_infpid) | |
863 | inferior_ptid = ptid; | |
864 | } | |
865 | return ptid; | |
866 | } | |
867 | ||
0963b4bd | 868 | /* Try to start debugging threads in the current process. |
0fe7bf7b MS |
869 | If successful and SET_INFPID, set inferior_ptid to reflect the |
870 | current thread. */ | |
c11d79f2 KB |
871 | |
872 | static ptid_t | |
873 | pd_activate (int set_infpid) | |
874 | { | |
875 | int status; | |
876 | ||
877 | status = pthdb_session_init (PD_USER, arch64 ? PEM_64BIT : PEM_32BIT, | |
0fe7bf7b MS |
878 | PTHDB_FLAG_REGS, &pd_callbacks, |
879 | &pd_session); | |
c11d79f2 KB |
880 | if (status != PTHDB_SUCCESS) |
881 | { | |
882 | return inferior_ptid; | |
883 | } | |
884 | pd_active = 1; | |
885 | return pd_update (set_infpid); | |
886 | } | |
887 | ||
0fe7bf7b | 888 | /* Undo the effects of pd_activate(). */ |
c11d79f2 KB |
889 | |
890 | static void | |
891 | pd_deactivate (void) | |
892 | { | |
893 | if (!pd_active) | |
894 | return; | |
895 | pthdb_session_destroy (pd_session); | |
896 | ||
897 | pid_to_prc (&inferior_ptid); | |
898 | pd_active = 0; | |
899 | } | |
900 | ||
0fe7bf7b MS |
901 | /* An object file has just been loaded. Check whether the current |
902 | application is pthreaded, and if so, prepare for thread debugging. */ | |
c11d79f2 KB |
903 | |
904 | static void | |
905 | pd_enable (void) | |
906 | { | |
907 | int status; | |
908 | char *stub_name; | |
3b7344d5 | 909 | struct bound_minimal_symbol ms; |
c11d79f2 | 910 | |
0fe7bf7b | 911 | /* Don't initialize twice. */ |
c11d79f2 KB |
912 | if (pd_able) |
913 | return; | |
914 | ||
0fe7bf7b | 915 | /* Check application word size. */ |
f5656ead | 916 | arch64 = register_size (target_gdbarch (), 0) == 8; |
c11d79f2 | 917 | |
0fe7bf7b | 918 | /* Check whether the application is pthreaded. */ |
c11d79f2 | 919 | stub_name = NULL; |
0fe7bf7b MS |
920 | status = pthdb_session_pthreaded (PD_USER, PTHDB_FLAG_REGS, |
921 | &pd_callbacks, &stub_name); | |
f8bf5763 PM |
922 | if ((status != PTHDB_SUCCESS |
923 | && status != PTHDB_NOT_PTHREADED) || !stub_name) | |
c11d79f2 KB |
924 | return; |
925 | ||
0fe7bf7b | 926 | /* Set a breakpoint on the returned stub function. */ |
3b7344d5 TT |
927 | ms = lookup_minimal_symbol (stub_name, NULL, NULL); |
928 | if (ms.minsym == NULL) | |
c11d79f2 | 929 | return; |
77e371c0 | 930 | pd_brk_addr = BMSYMBOL_VALUE_ADDRESS (ms); |
f5656ead | 931 | if (!create_thread_event_breakpoint (target_gdbarch (), pd_brk_addr)) |
c11d79f2 KB |
932 | return; |
933 | ||
0fe7bf7b | 934 | /* Prepare for thread debugging. */ |
206d3d3c | 935 | push_target (&aix_thread_ops); |
c11d79f2 KB |
936 | pd_able = 1; |
937 | ||
0fe7bf7b MS |
938 | /* If we're debugging a core file or an attached inferior, the |
939 | pthread library may already have been initialized, so try to | |
940 | activate thread debugging. */ | |
c11d79f2 KB |
941 | pd_activate (1); |
942 | } | |
943 | ||
0fe7bf7b | 944 | /* Undo the effects of pd_enable(). */ |
c11d79f2 KB |
945 | |
946 | static void | |
947 | pd_disable (void) | |
948 | { | |
949 | if (!pd_able) | |
950 | return; | |
951 | if (pd_active) | |
952 | pd_deactivate (); | |
953 | pd_able = 0; | |
206d3d3c | 954 | unpush_target (&aix_thread_ops); |
c11d79f2 KB |
955 | } |
956 | ||
06d3b283 | 957 | /* new_objfile observer callback. |
c11d79f2 | 958 | |
0fe7bf7b MS |
959 | If OBJFILE is non-null, check whether a threaded application is |
960 | being debugged, and if so, prepare for thread debugging. | |
c11d79f2 | 961 | |
0fe7bf7b | 962 | If OBJFILE is null, stop debugging threads. */ |
c11d79f2 KB |
963 | |
964 | static void | |
965 | new_objfile (struct objfile *objfile) | |
966 | { | |
967 | if (objfile) | |
968 | pd_enable (); | |
969 | else | |
970 | pd_disable (); | |
c11d79f2 KB |
971 | } |
972 | ||
0fe7bf7b | 973 | /* Attach to process specified by ARGS. */ |
c11d79f2 KB |
974 | |
975 | static void | |
b3ccfe11 | 976 | aix_thread_inferior_created (struct target_ops *ops, int from_tty) |
c11d79f2 | 977 | { |
b3ccfe11 | 978 | pd_enable (); |
c11d79f2 KB |
979 | } |
980 | ||
206d3d3c | 981 | /* Detach from the process attached to by aix_thread_attach(). */ |
c11d79f2 KB |
982 | |
983 | static void | |
6e1e1966 | 984 | aix_thread_detach (struct target_ops *ops, inferior *inf, int from_tty) |
c11d79f2 | 985 | { |
d30acaa7 JB |
986 | struct target_ops *beneath = find_target_beneath (ops); |
987 | ||
6c0c456d | 988 | pd_disable (); |
6e1e1966 | 989 | beneath->to_detach (beneath, inf, from_tty); |
c11d79f2 KB |
990 | } |
991 | ||
992 | /* Tell the inferior process to continue running thread PID if != -1 | |
0fe7bf7b | 993 | and all threads otherwise. */ |
c11d79f2 KB |
994 | |
995 | static void | |
c7660128 | 996 | aix_thread_resume (struct target_ops *ops, |
2ea28649 | 997 | ptid_t ptid, int step, enum gdb_signal sig) |
c11d79f2 KB |
998 | { |
999 | struct thread_info *thread; | |
1000 | pthdb_tid_t tid[2]; | |
1001 | ||
1002 | if (!PD_TID (ptid)) | |
14fa3751 | 1003 | { |
2989a365 | 1004 | scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid); |
d30acaa7 JB |
1005 | struct target_ops *beneath = find_target_beneath (ops); |
1006 | ||
dfd4cc63 | 1007 | inferior_ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); |
d30acaa7 | 1008 | beneath->to_resume (beneath, ptid, step, sig); |
14fa3751 | 1009 | } |
c11d79f2 KB |
1010 | else |
1011 | { | |
e09875d4 | 1012 | thread = find_thread_ptid (ptid); |
c11d79f2 | 1013 | if (!thread) |
edefbb7c | 1014 | error (_("aix-thread resume: unknown pthread %ld"), |
dfd4cc63 | 1015 | ptid_get_lwp (ptid)); |
c11d79f2 | 1016 | |
7aabaf9d SM |
1017 | aix_thread_info *priv = get_aix_thread_info (thread); |
1018 | ||
1019 | tid[0] = priv->tid; | |
c11d79f2 | 1020 | if (tid[0] == PTHDB_INVALID_TID) |
edefbb7c | 1021 | error (_("aix-thread resume: no tid for pthread %ld"), |
dfd4cc63 | 1022 | ptid_get_lwp (ptid)); |
c11d79f2 KB |
1023 | tid[1] = 0; |
1024 | ||
1025 | if (arch64) | |
fecf803e | 1026 | ptrace64aix (PTT_CONTINUE, tid[0], (long long) 1, |
71829b1a | 1027 | gdb_signal_to_host (sig), (PTRACE_TYPE_ARG5) tid); |
c11d79f2 | 1028 | else |
fecf803e | 1029 | ptrace32 (PTT_CONTINUE, tid[0], (addr_ptr) 1, |
71829b1a | 1030 | gdb_signal_to_host (sig), (PTRACE_TYPE_ARG5) tid); |
c11d79f2 KB |
1031 | } |
1032 | } | |
1033 | ||
0fe7bf7b MS |
1034 | /* Wait for thread/process ID if != -1 or for any thread otherwise. |
1035 | If an error occurs, return -1, else return the pid of the stopped | |
1036 | thread. */ | |
c11d79f2 KB |
1037 | |
1038 | static ptid_t | |
117de6a9 | 1039 | aix_thread_wait (struct target_ops *ops, |
8914d83b | 1040 | ptid_t ptid, struct target_waitstatus *status, int options) |
c11d79f2 | 1041 | { |
d30acaa7 | 1042 | struct target_ops *beneath = find_target_beneath (ops); |
14fa3751 | 1043 | |
2989a365 TT |
1044 | { |
1045 | scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid); | |
14fa3751 | 1046 | |
2989a365 TT |
1047 | pid_to_prc (&ptid); |
1048 | ||
1049 | inferior_ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); | |
1050 | ptid = beneath->to_wait (beneath, ptid, status, options); | |
1051 | } | |
14fa3751 | 1052 | |
dfd4cc63 | 1053 | if (ptid_get_pid (ptid) == -1) |
c11d79f2 KB |
1054 | return pid_to_ptid (-1); |
1055 | ||
0fe7bf7b | 1056 | /* Check whether libpthdebug might be ready to be initialized. */ |
515630c5 | 1057 | if (!pd_active && status->kind == TARGET_WAITKIND_STOPPED |
a493e3e2 | 1058 | && status->value.sig == GDB_SIGNAL_TRAP) |
515630c5 UW |
1059 | { |
1060 | struct regcache *regcache = get_thread_regcache (ptid); | |
ac7936df | 1061 | struct gdbarch *gdbarch = regcache->arch (); |
515630c5 UW |
1062 | |
1063 | if (regcache_read_pc (regcache) | |
527a273a | 1064 | - gdbarch_decr_pc_after_break (gdbarch) == pd_brk_addr) |
515630c5 UW |
1065 | return pd_activate (0); |
1066 | } | |
c11d79f2 KB |
1067 | |
1068 | return pd_update (0); | |
1069 | } | |
1070 | ||
0fe7bf7b | 1071 | /* Record that the 64-bit general-purpose registers contain VALS. */ |
c11d79f2 KB |
1072 | |
1073 | static void | |
647478e0 | 1074 | supply_gprs64 (struct regcache *regcache, uint64_t *vals) |
c11d79f2 | 1075 | { |
ac7936df | 1076 | struct gdbarch_tdep *tdep = gdbarch_tdep (regcache->arch ()); |
c11d79f2 KB |
1077 | int regno; |
1078 | ||
063715bf | 1079 | for (regno = 0; regno < ppc_num_gprs; regno++) |
647478e0 | 1080 | regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + regno, |
23a6d369 | 1081 | (char *) (vals + regno)); |
c11d79f2 KB |
1082 | } |
1083 | ||
0fe7bf7b | 1084 | /* Record that 32-bit register REGNO contains VAL. */ |
c11d79f2 KB |
1085 | |
1086 | static void | |
647478e0 | 1087 | supply_reg32 (struct regcache *regcache, int regno, uint32_t val) |
c11d79f2 | 1088 | { |
647478e0 | 1089 | regcache_raw_supply (regcache, regno, (char *) &val); |
c11d79f2 KB |
1090 | } |
1091 | ||
0fe7bf7b | 1092 | /* Record that the floating-point registers contain VALS. */ |
c11d79f2 KB |
1093 | |
1094 | static void | |
647478e0 | 1095 | supply_fprs (struct regcache *regcache, double *vals) |
c11d79f2 | 1096 | { |
ac7936df | 1097 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1098 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
c11d79f2 KB |
1099 | int regno; |
1100 | ||
383f0f5b JB |
1101 | /* This function should never be called on architectures without |
1102 | floating-point registers. */ | |
c7f30c7a | 1103 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1104 | |
786c562f JB |
1105 | for (regno = tdep->ppc_fp0_regnum; |
1106 | regno < tdep->ppc_fp0_regnum + ppc_num_fprs; | |
1107 | regno++) | |
1108 | regcache_raw_supply (regcache, regno, | |
1109 | (char *) (vals + regno - tdep->ppc_fp0_regnum)); | |
c11d79f2 KB |
1110 | } |
1111 | ||
f1a91342 KB |
1112 | /* Predicate to test whether given register number is a "special" register. */ |
1113 | static int | |
9970f04b | 1114 | special_register_p (struct gdbarch *gdbarch, int regno) |
f1a91342 | 1115 | { |
9970f04b | 1116 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1117 | |
9970f04b | 1118 | return regno == gdbarch_pc_regnum (gdbarch) |
f1a91342 KB |
1119 | || regno == tdep->ppc_ps_regnum |
1120 | || regno == tdep->ppc_cr_regnum | |
1121 | || regno == tdep->ppc_lr_regnum | |
1122 | || regno == tdep->ppc_ctr_regnum | |
1123 | || regno == tdep->ppc_xer_regnum | |
383f0f5b | 1124 | || (tdep->ppc_fpscr_regnum >= 0 && regno == tdep->ppc_fpscr_regnum) |
f1a91342 KB |
1125 | || (tdep->ppc_mq_regnum >= 0 && regno == tdep->ppc_mq_regnum); |
1126 | } | |
1127 | ||
1128 | ||
0fe7bf7b MS |
1129 | /* Record that the special registers contain the specified 64-bit and |
1130 | 32-bit values. */ | |
c11d79f2 KB |
1131 | |
1132 | static void | |
647478e0 UW |
1133 | supply_sprs64 (struct regcache *regcache, |
1134 | uint64_t iar, uint64_t msr, uint32_t cr, | |
0e061eef KB |
1135 | uint64_t lr, uint64_t ctr, uint32_t xer, |
1136 | uint32_t fpscr) | |
c11d79f2 | 1137 | { |
ac7936df | 1138 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1139 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1140 | |
c7f30c7a | 1141 | regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch), |
3e8c568d | 1142 | (char *) &iar); |
647478e0 UW |
1143 | regcache_raw_supply (regcache, tdep->ppc_ps_regnum, (char *) &msr); |
1144 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, (char *) &cr); | |
1145 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, (char *) &lr); | |
1146 | regcache_raw_supply (regcache, tdep->ppc_ctr_regnum, (char *) &ctr); | |
1147 | regcache_raw_supply (regcache, tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1148 | if (tdep->ppc_fpscr_regnum >= 0) |
647478e0 | 1149 | regcache_raw_supply (regcache, tdep->ppc_fpscr_regnum, |
23a6d369 | 1150 | (char *) &fpscr); |
c11d79f2 KB |
1151 | } |
1152 | ||
0fe7bf7b MS |
1153 | /* Record that the special registers contain the specified 32-bit |
1154 | values. */ | |
c11d79f2 KB |
1155 | |
1156 | static void | |
647478e0 UW |
1157 | supply_sprs32 (struct regcache *regcache, |
1158 | uint32_t iar, uint32_t msr, uint32_t cr, | |
0e061eef KB |
1159 | uint32_t lr, uint32_t ctr, uint32_t xer, |
1160 | uint32_t fpscr) | |
c11d79f2 | 1161 | { |
ac7936df | 1162 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1163 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1164 | |
c7f30c7a | 1165 | regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch), |
3e8c568d | 1166 | (char *) &iar); |
647478e0 UW |
1167 | regcache_raw_supply (regcache, tdep->ppc_ps_regnum, (char *) &msr); |
1168 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, (char *) &cr); | |
1169 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, (char *) &lr); | |
1170 | regcache_raw_supply (regcache, tdep->ppc_ctr_regnum, (char *) &ctr); | |
1171 | regcache_raw_supply (regcache, tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1172 | if (tdep->ppc_fpscr_regnum >= 0) |
647478e0 | 1173 | regcache_raw_supply (regcache, tdep->ppc_fpscr_regnum, |
23a6d369 | 1174 | (char *) &fpscr); |
c11d79f2 KB |
1175 | } |
1176 | ||
1177 | /* Fetch all registers from pthread PDTID, which doesn't have a kernel | |
1178 | thread. | |
1179 | ||
0fe7bf7b MS |
1180 | There's no way to query a single register from a non-kernel |
1181 | pthread, so there's no need for a single-register version of this | |
1182 | function. */ | |
c11d79f2 KB |
1183 | |
1184 | static void | |
647478e0 | 1185 | fetch_regs_user_thread (struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1186 | { |
ac7936df | 1187 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1188 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
c11d79f2 KB |
1189 | int status, i; |
1190 | pthdb_context_t ctx; | |
1191 | ||
8e2c28d4 | 1192 | if (debug_aix_thread) |
206d3d3c KB |
1193 | fprintf_unfiltered (gdb_stdlog, |
1194 | "fetch_regs_user_thread %lx\n", (long) pdtid); | |
c11d79f2 KB |
1195 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1196 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1197 | error (_("aix-thread: fetch_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1198 | pd_status2str (status)); |
c11d79f2 | 1199 | |
0fe7bf7b | 1200 | /* General-purpose registers. */ |
c11d79f2 KB |
1201 | |
1202 | if (arch64) | |
647478e0 | 1203 | supply_gprs64 (regcache, ctx.gpr); |
c11d79f2 | 1204 | else |
063715bf | 1205 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1206 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, ctx.gpr[i]); |
c11d79f2 | 1207 | |
0fe7bf7b | 1208 | /* Floating-point registers. */ |
c11d79f2 | 1209 | |
c7f30c7a | 1210 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1211 | supply_fprs (regcache, ctx.fpr); |
c11d79f2 | 1212 | |
0fe7bf7b | 1213 | /* Special registers. */ |
c11d79f2 KB |
1214 | |
1215 | if (arch64) | |
647478e0 UW |
1216 | supply_sprs64 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1217 | ctx.xer, ctx.fpscr); | |
c11d79f2 | 1218 | else |
647478e0 UW |
1219 | supply_sprs32 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1220 | ctx.xer, ctx.fpscr); | |
c11d79f2 KB |
1221 | } |
1222 | ||
0fe7bf7b MS |
1223 | /* Fetch register REGNO if != -1 or all registers otherwise from |
1224 | kernel thread TID. | |
c11d79f2 | 1225 | |
0fe7bf7b MS |
1226 | AIX provides a way to query all of a kernel thread's GPRs, FPRs, or |
1227 | SPRs, but there's no way to query individual registers within those | |
1228 | groups. Therefore, if REGNO != -1, this function fetches an entire | |
1229 | group. | |
c11d79f2 | 1230 | |
0fe7bf7b MS |
1231 | Unfortunately, kernel thread register queries often fail with |
1232 | EPERM, indicating that the thread is in kernel space. This breaks | |
1233 | backtraces of threads other than the current one. To make that | |
1234 | breakage obvious without throwing an error to top level (which is | |
1235 | bad e.g. during "info threads" output), zero registers that can't | |
1236 | be retrieved. */ | |
c11d79f2 KB |
1237 | |
1238 | static void | |
647478e0 UW |
1239 | fetch_regs_kernel_thread (struct regcache *regcache, int regno, |
1240 | pthdb_tid_t tid) | |
c11d79f2 | 1241 | { |
ac7936df | 1242 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1243 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
063715bf JB |
1244 | uint64_t gprs64[ppc_num_gprs]; |
1245 | uint32_t gprs32[ppc_num_gprs]; | |
1246 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
1247 | struct ptxsprs sprs64; |
1248 | struct ptsprs sprs32; | |
1249 | int i; | |
1250 | ||
8e2c28d4 KB |
1251 | if (debug_aix_thread) |
1252 | fprintf_unfiltered (gdb_stdlog, | |
206d3d3c KB |
1253 | "fetch_regs_kernel_thread tid=%lx regno=%d arch64=%d\n", |
1254 | (long) tid, regno, arch64); | |
c11d79f2 | 1255 | |
0fe7bf7b | 1256 | /* General-purpose registers. */ |
daf6dc85 JB |
1257 | if (regno == -1 |
1258 | || (tdep->ppc_gp0_regnum <= regno | |
1259 | && regno < tdep->ppc_gp0_regnum + ppc_num_gprs)) | |
c11d79f2 KB |
1260 | { |
1261 | if (arch64) | |
1262 | { | |
0fe7bf7b MS |
1263 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
1264 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 | 1265 | memset (gprs64, 0, sizeof (gprs64)); |
647478e0 | 1266 | supply_gprs64 (regcache, gprs64); |
c11d79f2 KB |
1267 | } |
1268 | else | |
1269 | { | |
3b631e37 | 1270 | if (!ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL)) |
c11d79f2 | 1271 | memset (gprs32, 0, sizeof (gprs32)); |
063715bf | 1272 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1273 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, gprs32[i]); |
c11d79f2 KB |
1274 | } |
1275 | } | |
1276 | ||
0fe7bf7b | 1277 | /* Floating-point registers. */ |
c11d79f2 | 1278 | |
c7f30c7a | 1279 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1280 | && (regno == -1 |
1281 | || (regno >= tdep->ppc_fp0_regnum | |
1282 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 | 1283 | { |
3b631e37 | 1284 | if (!ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL)) |
c11d79f2 | 1285 | memset (fprs, 0, sizeof (fprs)); |
647478e0 | 1286 | supply_fprs (regcache, fprs); |
c11d79f2 KB |
1287 | } |
1288 | ||
0fe7bf7b | 1289 | /* Special-purpose registers. */ |
c11d79f2 | 1290 | |
9970f04b | 1291 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1292 | { |
1293 | if (arch64) | |
1294 | { | |
0fe7bf7b MS |
1295 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
1296 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 | 1297 | memset (&sprs64, 0, sizeof (sprs64)); |
647478e0 UW |
1298 | supply_sprs64 (regcache, sprs64.pt_iar, sprs64.pt_msr, |
1299 | sprs64.pt_cr, sprs64.pt_lr, sprs64.pt_ctr, | |
1300 | sprs64.pt_xer, sprs64.pt_fpscr); | |
c11d79f2 KB |
1301 | } |
1302 | else | |
1303 | { | |
c7f30c7a | 1304 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1305 | |
3b631e37 | 1306 | if (!ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL)) |
c11d79f2 | 1307 | memset (&sprs32, 0, sizeof (sprs32)); |
647478e0 | 1308 | supply_sprs32 (regcache, sprs32.pt_iar, sprs32.pt_msr, sprs32.pt_cr, |
0e061eef KB |
1309 | sprs32.pt_lr, sprs32.pt_ctr, sprs32.pt_xer, |
1310 | sprs32.pt_fpscr); | |
c11d79f2 | 1311 | |
f1a91342 | 1312 | if (tdep->ppc_mq_regnum >= 0) |
647478e0 | 1313 | regcache_raw_supply (regcache, tdep->ppc_mq_regnum, |
23a6d369 | 1314 | (char *) &sprs32.pt_mq); |
c11d79f2 KB |
1315 | } |
1316 | } | |
1317 | } | |
1318 | ||
edb5fb00 SM |
1319 | /* Fetch register REGNO if != -1 or all registers otherwise from the |
1320 | thread/process connected to REGCACHE. */ | |
c11d79f2 KB |
1321 | |
1322 | static void | |
c7660128 JB |
1323 | aix_thread_fetch_registers (struct target_ops *ops, |
1324 | struct regcache *regcache, int regno) | |
c11d79f2 KB |
1325 | { |
1326 | struct thread_info *thread; | |
1327 | pthdb_tid_t tid; | |
d30acaa7 | 1328 | struct target_ops *beneath = find_target_beneath (ops); |
c11d79f2 | 1329 | |
edb5fb00 | 1330 | if (!PD_TID (regcache_get_ptid (regcache))) |
d30acaa7 | 1331 | beneath->to_fetch_registers (beneath, regcache, regno); |
c11d79f2 KB |
1332 | else |
1333 | { | |
edb5fb00 | 1334 | thread = find_thread_ptid (regcache_get_ptid (regcache)); |
7aabaf9d SM |
1335 | aix_thread_info *priv = get_aix_thread_info (thread); |
1336 | tid = priv->tid; | |
c11d79f2 KB |
1337 | |
1338 | if (tid == PTHDB_INVALID_TID) | |
7aabaf9d | 1339 | fetch_regs_user_thread (regcache, priv->pdtid); |
c11d79f2 | 1340 | else |
56be3814 | 1341 | fetch_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1342 | } |
1343 | } | |
1344 | ||
61c5da0b KB |
1345 | /* Store the gp registers into an array of uint32_t or uint64_t. */ |
1346 | ||
1347 | static void | |
647478e0 | 1348 | fill_gprs64 (const struct regcache *regcache, uint64_t *vals) |
61c5da0b | 1349 | { |
ac7936df | 1350 | struct gdbarch_tdep *tdep = gdbarch_tdep (regcache->arch ()); |
61c5da0b KB |
1351 | int regno; |
1352 | ||
daf6dc85 | 1353 | for (regno = 0; regno < ppc_num_gprs; regno++) |
672c9795 YQ |
1354 | if (REG_VALID == regcache_register_status (regcache, |
1355 | tdep->ppc_gp0_regnum + regno)) | |
647478e0 | 1356 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + regno, |
822c9732 | 1357 | vals + regno); |
61c5da0b KB |
1358 | } |
1359 | ||
1360 | static void | |
647478e0 | 1361 | fill_gprs32 (const struct regcache *regcache, uint32_t *vals) |
61c5da0b | 1362 | { |
ac7936df | 1363 | struct gdbarch_tdep *tdep = gdbarch_tdep (regcache->arch ()); |
61c5da0b KB |
1364 | int regno; |
1365 | ||
daf6dc85 | 1366 | for (regno = 0; regno < ppc_num_gprs; regno++) |
672c9795 YQ |
1367 | if (REG_VALID == regcache_register_status (regcache, |
1368 | tdep->ppc_gp0_regnum + regno)) | |
647478e0 | 1369 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + regno, |
822c9732 | 1370 | vals + regno); |
61c5da0b KB |
1371 | } |
1372 | ||
1373 | /* Store the floating point registers into a double array. */ | |
1374 | static void | |
647478e0 | 1375 | fill_fprs (const struct regcache *regcache, double *vals) |
61c5da0b | 1376 | { |
ac7936df | 1377 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1378 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
61c5da0b KB |
1379 | int regno; |
1380 | ||
383f0f5b JB |
1381 | /* This function should never be called on architectures without |
1382 | floating-point registers. */ | |
c7f30c7a | 1383 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1384 | |
366f009f JB |
1385 | for (regno = tdep->ppc_fp0_regnum; |
1386 | regno < tdep->ppc_fp0_regnum + ppc_num_fprs; | |
1387 | regno++) | |
672c9795 | 1388 | if (REG_VALID == regcache_register_status (regcache, regno)) |
e3ebf1bb JB |
1389 | regcache_raw_collect (regcache, regno, |
1390 | vals + regno - tdep->ppc_fp0_regnum); | |
61c5da0b KB |
1391 | } |
1392 | ||
c11d79f2 | 1393 | /* Store the special registers into the specified 64-bit and 32-bit |
0fe7bf7b | 1394 | locations. */ |
c11d79f2 KB |
1395 | |
1396 | static void | |
647478e0 UW |
1397 | fill_sprs64 (const struct regcache *regcache, |
1398 | uint64_t *iar, uint64_t *msr, uint32_t *cr, | |
0e061eef KB |
1399 | uint64_t *lr, uint64_t *ctr, uint32_t *xer, |
1400 | uint32_t *fpscr) | |
c11d79f2 | 1401 | { |
ac7936df | 1402 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1403 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 KB |
1404 | |
1405 | /* Verify that the size of the size of the IAR buffer is the | |
1406 | same as the raw size of the PC (in the register cache). If | |
1407 | they're not, then either GDB has been built incorrectly, or | |
1408 | there's some other kind of internal error. To be really safe, | |
1409 | we should check all of the sizes. */ | |
3e8c568d | 1410 | gdb_assert (sizeof (*iar) == register_size |
c7f30c7a | 1411 | (gdbarch, gdbarch_pc_regnum (gdbarch))); |
f1a91342 | 1412 | |
672c9795 YQ |
1413 | if (REG_VALID == regcache_register_status (regcache, |
1414 | gdbarch_pc_regnum (gdbarch))) | |
c7f30c7a | 1415 | regcache_raw_collect (regcache, gdbarch_pc_regnum (gdbarch), iar); |
672c9795 | 1416 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ps_regnum)) |
647478e0 | 1417 | regcache_raw_collect (regcache, tdep->ppc_ps_regnum, msr); |
672c9795 | 1418 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_cr_regnum)) |
647478e0 | 1419 | regcache_raw_collect (regcache, tdep->ppc_cr_regnum, cr); |
672c9795 | 1420 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_lr_regnum)) |
647478e0 | 1421 | regcache_raw_collect (regcache, tdep->ppc_lr_regnum, lr); |
672c9795 | 1422 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ctr_regnum)) |
647478e0 | 1423 | regcache_raw_collect (regcache, tdep->ppc_ctr_regnum, ctr); |
672c9795 | 1424 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_xer_regnum)) |
647478e0 | 1425 | regcache_raw_collect (regcache, tdep->ppc_xer_regnum, xer); |
383f0f5b | 1426 | if (tdep->ppc_fpscr_regnum >= 0 |
672c9795 YQ |
1427 | && REG_VALID == regcache_register_status (regcache, |
1428 | tdep->ppc_fpscr_regnum)) | |
647478e0 | 1429 | regcache_raw_collect (regcache, tdep->ppc_fpscr_regnum, fpscr); |
61c5da0b KB |
1430 | } |
1431 | ||
1432 | static void | |
647478e0 UW |
1433 | fill_sprs32 (const struct regcache *regcache, |
1434 | uint32_t *iar, uint32_t *msr, uint32_t *cr, | |
0d16ee5d UW |
1435 | uint32_t *lr, uint32_t *ctr, uint32_t *xer, |
1436 | uint32_t *fpscr) | |
61c5da0b | 1437 | { |
ac7936df | 1438 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1439 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 KB |
1440 | |
1441 | /* Verify that the size of the size of the IAR buffer is the | |
1442 | same as the raw size of the PC (in the register cache). If | |
1443 | they're not, then either GDB has been built incorrectly, or | |
1444 | there's some other kind of internal error. To be really safe, | |
0d16ee5d | 1445 | we should check all of the sizes. */ |
c7f30c7a UW |
1446 | gdb_assert (sizeof (*iar) == register_size (gdbarch, |
1447 | gdbarch_pc_regnum (gdbarch))); | |
f1a91342 | 1448 | |
672c9795 YQ |
1449 | if (REG_VALID == regcache_register_status (regcache, |
1450 | gdbarch_pc_regnum (gdbarch))) | |
c7f30c7a | 1451 | regcache_raw_collect (regcache, gdbarch_pc_regnum (gdbarch), iar); |
672c9795 | 1452 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ps_regnum)) |
647478e0 | 1453 | regcache_raw_collect (regcache, tdep->ppc_ps_regnum, msr); |
672c9795 | 1454 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_cr_regnum)) |
647478e0 | 1455 | regcache_raw_collect (regcache, tdep->ppc_cr_regnum, cr); |
672c9795 | 1456 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_lr_regnum)) |
647478e0 | 1457 | regcache_raw_collect (regcache, tdep->ppc_lr_regnum, lr); |
672c9795 | 1458 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ctr_regnum)) |
647478e0 | 1459 | regcache_raw_collect (regcache, tdep->ppc_ctr_regnum, ctr); |
672c9795 | 1460 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_xer_regnum)) |
647478e0 | 1461 | regcache_raw_collect (regcache, tdep->ppc_xer_regnum, xer); |
383f0f5b | 1462 | if (tdep->ppc_fpscr_regnum >= 0 |
672c9795 | 1463 | && REG_VALID == regcache_register_status (regcache, tdep->ppc_fpscr_regnum)) |
647478e0 | 1464 | regcache_raw_collect (regcache, tdep->ppc_fpscr_regnum, fpscr); |
c11d79f2 KB |
1465 | } |
1466 | ||
1467 | /* Store all registers into pthread PDTID, which doesn't have a kernel | |
1468 | thread. | |
1469 | ||
0fe7bf7b MS |
1470 | It's possible to store a single register into a non-kernel pthread, |
1471 | but I doubt it's worth the effort. */ | |
c11d79f2 KB |
1472 | |
1473 | static void | |
647478e0 | 1474 | store_regs_user_thread (const struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1475 | { |
ac7936df | 1476 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1477 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
c11d79f2 KB |
1478 | int status, i; |
1479 | pthdb_context_t ctx; | |
61c5da0b KB |
1480 | uint32_t int32; |
1481 | uint64_t int64; | |
1482 | double dbl; | |
c11d79f2 | 1483 | |
8e2c28d4 | 1484 | if (debug_aix_thread) |
0fe7bf7b | 1485 | fprintf_unfiltered (gdb_stdlog, |
206d3d3c | 1486 | "store_regs_user_thread %lx\n", (long) pdtid); |
c11d79f2 | 1487 | |
0fe7bf7b MS |
1488 | /* Retrieve the thread's current context for its non-register |
1489 | values. */ | |
c11d79f2 KB |
1490 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1491 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1492 | error (_("aix-thread: store_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1493 | pd_status2str (status)); |
c11d79f2 | 1494 | |
61c5da0b | 1495 | /* Collect general-purpose register values from the regcache. */ |
c11d79f2 | 1496 | |
063715bf | 1497 | for (i = 0; i < ppc_num_gprs; i++) |
672c9795 YQ |
1498 | if (REG_VALID == regcache_register_status (regcache, |
1499 | tdep->ppc_gp0_regnum + i)) | |
cbe92db4 KB |
1500 | { |
1501 | if (arch64) | |
1502 | { | |
647478e0 | 1503 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + i, |
822c9732 | 1504 | (void *) &int64); |
cbe92db4 KB |
1505 | ctx.gpr[i] = int64; |
1506 | } | |
1507 | else | |
1508 | { | |
647478e0 | 1509 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + i, |
822c9732 | 1510 | (void *) &int32); |
cbe92db4 KB |
1511 | ctx.gpr[i] = int32; |
1512 | } | |
1513 | } | |
c11d79f2 | 1514 | |
61c5da0b | 1515 | /* Collect floating-point register values from the regcache. */ |
c7f30c7a | 1516 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1517 | fill_fprs (regcache, ctx.fpr); |
c11d79f2 | 1518 | |
61c5da0b KB |
1519 | /* Special registers (always kept in ctx as 64 bits). */ |
1520 | if (arch64) | |
1521 | { | |
647478e0 UW |
1522 | fill_sprs64 (regcache, &ctx.iar, &ctx.msr, &ctx.cr, &ctx.lr, &ctx.ctr, |
1523 | &ctx.xer, &ctx.fpscr); | |
61c5da0b KB |
1524 | } |
1525 | else | |
1526 | { | |
1527 | /* Problem: ctx.iar etc. are 64 bits, but raw_registers are 32. | |
0d16ee5d UW |
1528 | Solution: use 32-bit temp variables. */ |
1529 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1530 | tmp_fpscr; | |
61c5da0b | 1531 | |
647478e0 UW |
1532 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, &tmp_ctr, |
1533 | &tmp_xer, &tmp_fpscr); | |
672c9795 YQ |
1534 | if (REG_VALID == regcache_register_status (regcache, |
1535 | gdbarch_pc_regnum (gdbarch))) | |
cbe92db4 | 1536 | ctx.iar = tmp_iar; |
672c9795 | 1537 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ps_regnum)) |
cbe92db4 | 1538 | ctx.msr = tmp_msr; |
672c9795 | 1539 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_cr_regnum)) |
cbe92db4 | 1540 | ctx.cr = tmp_cr; |
672c9795 | 1541 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_lr_regnum)) |
cbe92db4 | 1542 | ctx.lr = tmp_lr; |
672c9795 YQ |
1543 | if (REG_VALID == regcache_register_status (regcache, |
1544 | tdep->ppc_ctr_regnum)) | |
cbe92db4 | 1545 | ctx.ctr = tmp_ctr; |
672c9795 YQ |
1546 | if (REG_VALID == regcache_register_status (regcache, |
1547 | tdep->ppc_xer_regnum)) | |
cbe92db4 | 1548 | ctx.xer = tmp_xer; |
672c9795 YQ |
1549 | if (REG_VALID == regcache_register_status (regcache, |
1550 | tdep->ppc_xer_regnum)) | |
0e061eef | 1551 | ctx.fpscr = tmp_fpscr; |
61c5da0b | 1552 | } |
c11d79f2 KB |
1553 | |
1554 | status = pthdb_pthread_setcontext (pd_session, pdtid, &ctx); | |
1555 | if (status != PTHDB_SUCCESS) | |
0963b4bd MS |
1556 | error (_("aix-thread: store_registers: " |
1557 | "pthdb_pthread_setcontext returned %s"), | |
14fa3751 | 1558 | pd_status2str (status)); |
c11d79f2 KB |
1559 | } |
1560 | ||
0fe7bf7b MS |
1561 | /* Store register REGNO if != -1 or all registers otherwise into |
1562 | kernel thread TID. | |
c11d79f2 | 1563 | |
0fe7bf7b MS |
1564 | AIX provides a way to set all of a kernel thread's GPRs, FPRs, or |
1565 | SPRs, but there's no way to set individual registers within those | |
1566 | groups. Therefore, if REGNO != -1, this function stores an entire | |
1567 | group. */ | |
c11d79f2 KB |
1568 | |
1569 | static void | |
647478e0 UW |
1570 | store_regs_kernel_thread (const struct regcache *regcache, int regno, |
1571 | pthdb_tid_t tid) | |
c11d79f2 | 1572 | { |
ac7936df | 1573 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1574 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
063715bf JB |
1575 | uint64_t gprs64[ppc_num_gprs]; |
1576 | uint32_t gprs32[ppc_num_gprs]; | |
1577 | double fprs[ppc_num_fprs]; | |
c11d79f2 | 1578 | struct ptxsprs sprs64; |
61c5da0b KB |
1579 | struct ptsprs sprs32; |
1580 | int i; | |
c11d79f2 | 1581 | |
8e2c28d4 | 1582 | if (debug_aix_thread) |
206d3d3c KB |
1583 | fprintf_unfiltered (gdb_stdlog, |
1584 | "store_regs_kernel_thread tid=%lx regno=%d\n", | |
1585 | (long) tid, regno); | |
c11d79f2 | 1586 | |
0fe7bf7b | 1587 | /* General-purpose registers. */ |
daf6dc85 JB |
1588 | if (regno == -1 |
1589 | || (tdep->ppc_gp0_regnum <= regno | |
1590 | && regno < tdep->ppc_gp0_regnum + ppc_num_fprs)) | |
c11d79f2 | 1591 | { |
c11d79f2 | 1592 | if (arch64) |
61c5da0b | 1593 | { |
cbe92db4 KB |
1594 | /* Pre-fetch: some regs may not be in the cache. */ |
1595 | ptrace64aix (PTT_READ_GPRS, tid, (unsigned long) gprs64, 0, NULL); | |
647478e0 | 1596 | fill_gprs64 (regcache, gprs64); |
61c5da0b KB |
1597 | ptrace64aix (PTT_WRITE_GPRS, tid, (unsigned long) gprs64, 0, NULL); |
1598 | } | |
c11d79f2 | 1599 | else |
61c5da0b | 1600 | { |
cbe92db4 | 1601 | /* Pre-fetch: some regs may not be in the cache. */ |
3b631e37 | 1602 | ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL); |
647478e0 | 1603 | fill_gprs32 (regcache, gprs32); |
3b631e37 | 1604 | ptrace32 (PTT_WRITE_GPRS, tid, (uintptr_t) gprs32, 0, NULL); |
61c5da0b | 1605 | } |
c11d79f2 KB |
1606 | } |
1607 | ||
0fe7bf7b | 1608 | /* Floating-point registers. */ |
c11d79f2 | 1609 | |
c7f30c7a | 1610 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1611 | && (regno == -1 |
1612 | || (regno >= tdep->ppc_fp0_regnum | |
1613 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 | 1614 | { |
cbe92db4 | 1615 | /* Pre-fetch: some regs may not be in the cache. */ |
3b631e37 | 1616 | ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL); |
647478e0 | 1617 | fill_fprs (regcache, fprs); |
3b631e37 | 1618 | ptrace32 (PTT_WRITE_FPRS, tid, (uintptr_t) fprs, 0, NULL); |
c11d79f2 KB |
1619 | } |
1620 | ||
0fe7bf7b | 1621 | /* Special-purpose registers. */ |
c11d79f2 | 1622 | |
9970f04b | 1623 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1624 | { |
1625 | if (arch64) | |
1626 | { | |
cbe92db4 | 1627 | /* Pre-fetch: some registers won't be in the cache. */ |
0fe7bf7b MS |
1628 | ptrace64aix (PTT_READ_SPRS, tid, |
1629 | (unsigned long) &sprs64, 0, NULL); | |
647478e0 UW |
1630 | fill_sprs64 (regcache, &sprs64.pt_iar, &sprs64.pt_msr, |
1631 | &sprs64.pt_cr, &sprs64.pt_lr, &sprs64.pt_ctr, | |
1632 | &sprs64.pt_xer, &sprs64.pt_fpscr); | |
0fe7bf7b MS |
1633 | ptrace64aix (PTT_WRITE_SPRS, tid, |
1634 | (unsigned long) &sprs64, 0, NULL); | |
c11d79f2 KB |
1635 | } |
1636 | else | |
1637 | { | |
0d16ee5d UW |
1638 | /* The contents of "struct ptspr" were declared as "unsigned |
1639 | long" up to AIX 5.2, but are "unsigned int" since 5.3. | |
1640 | Use temporaries to work around this problem. Also, add an | |
1641 | assert here to make sure we fail if the system header files | |
1642 | use "unsigned long", and the size of that type is not what | |
1643 | the headers expect. */ | |
1644 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1645 | tmp_fpscr; | |
1646 | ||
1647 | gdb_assert (sizeof (sprs32.pt_iar) == 4); | |
1648 | ||
cbe92db4 | 1649 | /* Pre-fetch: some registers won't be in the cache. */ |
3b631e37 | 1650 | ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL); |
c11d79f2 | 1651 | |
647478e0 UW |
1652 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, |
1653 | &tmp_ctr, &tmp_xer, &tmp_fpscr); | |
0d16ee5d UW |
1654 | |
1655 | sprs32.pt_iar = tmp_iar; | |
1656 | sprs32.pt_msr = tmp_msr; | |
1657 | sprs32.pt_cr = tmp_cr; | |
1658 | sprs32.pt_lr = tmp_lr; | |
1659 | sprs32.pt_ctr = tmp_ctr; | |
1660 | sprs32.pt_xer = tmp_xer; | |
1661 | sprs32.pt_fpscr = tmp_fpscr; | |
c11d79f2 | 1662 | |
f1a91342 | 1663 | if (tdep->ppc_mq_regnum >= 0) |
672c9795 YQ |
1664 | if (REG_VALID == regcache_register_status (regcache, |
1665 | tdep->ppc_mq_regnum)) | |
647478e0 | 1666 | regcache_raw_collect (regcache, tdep->ppc_mq_regnum, |
822c9732 | 1667 | &sprs32.pt_mq); |
c11d79f2 | 1668 | |
3b631e37 | 1669 | ptrace32 (PTT_WRITE_SPRS, tid, (uintptr_t) &sprs32, 0, NULL); |
c11d79f2 KB |
1670 | } |
1671 | } | |
1672 | } | |
1673 | ||
0fe7bf7b | 1674 | /* Store gdb's current view of the register set into the |
edb5fb00 | 1675 | thread/process connected to REGCACHE. */ |
c11d79f2 KB |
1676 | |
1677 | static void | |
c7660128 JB |
1678 | aix_thread_store_registers (struct target_ops *ops, |
1679 | struct regcache *regcache, int regno) | |
c11d79f2 KB |
1680 | { |
1681 | struct thread_info *thread; | |
1682 | pthdb_tid_t tid; | |
d30acaa7 | 1683 | struct target_ops *beneath = find_target_beneath (ops); |
c11d79f2 | 1684 | |
edb5fb00 | 1685 | if (!PD_TID (regcache_get_ptid (regcache))) |
d30acaa7 | 1686 | beneath->to_store_registers (beneath, regcache, regno); |
c11d79f2 KB |
1687 | else |
1688 | { | |
edb5fb00 | 1689 | thread = find_thread_ptid (regcache_get_ptid (regcache)); |
7aabaf9d SM |
1690 | aix_thread_info *priv = get_aix_thread_info (thread); |
1691 | tid = priv->tid; | |
c11d79f2 KB |
1692 | |
1693 | if (tid == PTHDB_INVALID_TID) | |
7aabaf9d | 1694 | store_regs_user_thread (regcache, priv->pdtid); |
c11d79f2 | 1695 | else |
56be3814 | 1696 | store_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1697 | } |
1698 | } | |
1699 | ||
edcc890f | 1700 | /* Implement the to_xfer_partial target_ops method. */ |
037a727e | 1701 | |
9b409511 | 1702 | static enum target_xfer_status |
037a727e UW |
1703 | aix_thread_xfer_partial (struct target_ops *ops, enum target_object object, |
1704 | const char *annex, gdb_byte *readbuf, | |
0963b4bd | 1705 | const gdb_byte *writebuf, |
9b409511 | 1706 | ULONGEST offset, ULONGEST len, ULONGEST *xfered_len) |
c11d79f2 | 1707 | { |
2989a365 | 1708 | scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid); |
d30acaa7 | 1709 | struct target_ops *beneath = find_target_beneath (ops); |
14fa3751 | 1710 | |
dfd4cc63 | 1711 | inferior_ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); |
2989a365 | 1712 | return beneath->to_xfer_partial (beneath, object, annex, readbuf, |
9b409511 | 1713 | writebuf, offset, len, xfered_len); |
c11d79f2 KB |
1714 | } |
1715 | ||
0fe7bf7b | 1716 | /* Clean up after the inferior exits. */ |
c11d79f2 KB |
1717 | |
1718 | static void | |
136d6dae | 1719 | aix_thread_mourn_inferior (struct target_ops *ops) |
c11d79f2 | 1720 | { |
d30acaa7 JB |
1721 | struct target_ops *beneath = find_target_beneath (ops); |
1722 | ||
c11d79f2 | 1723 | pd_deactivate (); |
d30acaa7 | 1724 | beneath->to_mourn_inferior (beneath); |
c11d79f2 KB |
1725 | } |
1726 | ||
0fe7bf7b | 1727 | /* Return whether thread PID is still valid. */ |
c11d79f2 KB |
1728 | |
1729 | static int | |
c7660128 | 1730 | aix_thread_thread_alive (struct target_ops *ops, ptid_t ptid) |
c11d79f2 | 1731 | { |
7fc0c7b5 | 1732 | struct target_ops *beneath = find_target_beneath (ops); |
d30acaa7 | 1733 | |
c11d79f2 | 1734 | if (!PD_TID (ptid)) |
d30acaa7 | 1735 | return beneath->to_thread_alive (beneath, ptid); |
c11d79f2 | 1736 | |
0fe7bf7b MS |
1737 | /* We update the thread list every time the child stops, so all |
1738 | valid threads should be in the thread list. */ | |
c11d79f2 KB |
1739 | return in_thread_list (ptid); |
1740 | } | |
1741 | ||
0fe7bf7b MS |
1742 | /* Return a printable representation of composite PID for use in |
1743 | "info threads" output. */ | |
c11d79f2 | 1744 | |
7a114964 | 1745 | static const char * |
117de6a9 | 1746 | aix_thread_pid_to_str (struct target_ops *ops, ptid_t ptid) |
c11d79f2 KB |
1747 | { |
1748 | static char *ret = NULL; | |
7fc0c7b5 | 1749 | struct target_ops *beneath = find_target_beneath (ops); |
c11d79f2 KB |
1750 | |
1751 | if (!PD_TID (ptid)) | |
d30acaa7 | 1752 | return beneath->to_pid_to_str (beneath, ptid); |
c11d79f2 KB |
1753 | |
1754 | /* Free previous return value; a new one will be allocated by | |
b435e160 | 1755 | xstrprintf(). */ |
c11d79f2 KB |
1756 | xfree (ret); |
1757 | ||
edefbb7c | 1758 | ret = xstrprintf (_("Thread %ld"), ptid_get_tid (ptid)); |
c11d79f2 KB |
1759 | return ret; |
1760 | } | |
1761 | ||
0fe7bf7b MS |
1762 | /* Return a printable representation of extra information about |
1763 | THREAD, for use in "info threads" output. */ | |
c11d79f2 | 1764 | |
7a114964 | 1765 | static const char * |
c15906d8 TT |
1766 | aix_thread_extra_thread_info (struct target_ops *self, |
1767 | struct thread_info *thread) | |
c11d79f2 | 1768 | { |
c11d79f2 KB |
1769 | int status; |
1770 | pthdb_pthread_t pdtid; | |
1771 | pthdb_tid_t tid; | |
1772 | pthdb_state_t state; | |
1773 | pthdb_suspendstate_t suspendstate; | |
1774 | pthdb_detachstate_t detachstate; | |
1775 | int cancelpend; | |
c11d79f2 KB |
1776 | static char *ret = NULL; |
1777 | ||
1778 | if (!PD_TID (thread->ptid)) | |
1779 | return NULL; | |
1780 | ||
d7e74731 | 1781 | string_file buf; |
7aabaf9d | 1782 | aix_thread_info *priv = get_aix_thread_info (thread); |
c11d79f2 | 1783 | |
7aabaf9d SM |
1784 | pdtid = priv->pdtid; |
1785 | tid = priv->tid; | |
c11d79f2 KB |
1786 | |
1787 | if (tid != PTHDB_INVALID_TID) | |
edefbb7c | 1788 | /* i18n: Like "thread-identifier %d, [state] running, suspended" */ |
d7e74731 | 1789 | buf.printf (_("tid %d"), (int)tid); |
c11d79f2 KB |
1790 | |
1791 | status = pthdb_pthread_state (pd_session, pdtid, &state); | |
1792 | if (status != PTHDB_SUCCESS) | |
1793 | state = PST_NOTSUP; | |
d7e74731 | 1794 | buf.printf (", %s", state2str (state)); |
c11d79f2 | 1795 | |
0fe7bf7b MS |
1796 | status = pthdb_pthread_suspendstate (pd_session, pdtid, |
1797 | &suspendstate); | |
c11d79f2 | 1798 | if (status == PTHDB_SUCCESS && suspendstate == PSS_SUSPENDED) |
edefbb7c | 1799 | /* i18n: Like "Thread-Id %d, [state] running, suspended" */ |
d7e74731 | 1800 | buf.printf (_(", suspended")); |
c11d79f2 | 1801 | |
0fe7bf7b MS |
1802 | status = pthdb_pthread_detachstate (pd_session, pdtid, |
1803 | &detachstate); | |
c11d79f2 | 1804 | if (status == PTHDB_SUCCESS && detachstate == PDS_DETACHED) |
edefbb7c | 1805 | /* i18n: Like "Thread-Id %d, [state] running, detached" */ |
d7e74731 | 1806 | buf.printf (_(", detached")); |
c11d79f2 KB |
1807 | |
1808 | pthdb_pthread_cancelpend (pd_session, pdtid, &cancelpend); | |
1809 | if (status == PTHDB_SUCCESS && cancelpend) | |
edefbb7c | 1810 | /* i18n: Like "Thread-Id %d, [state] running, cancel pending" */ |
d7e74731 | 1811 | buf.printf (_(", cancel pending")); |
c11d79f2 | 1812 | |
d7e74731 | 1813 | buf.write ("", 1); |
c11d79f2 KB |
1814 | |
1815 | xfree (ret); /* Free old buffer. */ | |
1816 | ||
d7e74731 | 1817 | ret = xstrdup (buf.c_str ()); |
c11d79f2 KB |
1818 | |
1819 | return ret; | |
1820 | } | |
1821 | ||
c7660128 | 1822 | static ptid_t |
1e6b91a4 | 1823 | aix_thread_get_ada_task_ptid (struct target_ops *self, long lwp, long thread) |
c7660128 JB |
1824 | { |
1825 | return ptid_build (ptid_get_pid (inferior_ptid), 0, thread); | |
1826 | } | |
1827 | ||
206d3d3c | 1828 | /* Initialize target aix_thread_ops. */ |
c11d79f2 KB |
1829 | |
1830 | static void | |
206d3d3c | 1831 | init_aix_thread_ops (void) |
c11d79f2 | 1832 | { |
783425fc PA |
1833 | aix_thread_ops.to_shortname = "aix-threads"; |
1834 | aix_thread_ops.to_longname = _("AIX pthread support"); | |
1835 | aix_thread_ops.to_doc = _("AIX pthread support"); | |
1836 | ||
783425fc PA |
1837 | aix_thread_ops.to_detach = aix_thread_detach; |
1838 | aix_thread_ops.to_resume = aix_thread_resume; | |
1839 | aix_thread_ops.to_wait = aix_thread_wait; | |
1840 | aix_thread_ops.to_fetch_registers = aix_thread_fetch_registers; | |
1841 | aix_thread_ops.to_store_registers = aix_thread_store_registers; | |
1842 | aix_thread_ops.to_xfer_partial = aix_thread_xfer_partial; | |
783425fc PA |
1843 | aix_thread_ops.to_mourn_inferior = aix_thread_mourn_inferior; |
1844 | aix_thread_ops.to_thread_alive = aix_thread_thread_alive; | |
1845 | aix_thread_ops.to_pid_to_str = aix_thread_pid_to_str; | |
1846 | aix_thread_ops.to_extra_thread_info = aix_thread_extra_thread_info; | |
1847 | aix_thread_ops.to_get_ada_task_ptid = aix_thread_get_ada_task_ptid; | |
1848 | aix_thread_ops.to_stratum = thread_stratum; | |
1849 | aix_thread_ops.to_magic = OPS_MAGIC; | |
c11d79f2 KB |
1850 | } |
1851 | ||
1852 | /* Module startup initialization function, automagically called by | |
0fe7bf7b | 1853 | init.c. */ |
c11d79f2 KB |
1854 | |
1855 | void | |
1856 | _initialize_aix_thread (void) | |
1857 | { | |
206d3d3c | 1858 | init_aix_thread_ops (); |
12070676 | 1859 | complete_target_initialization (&aix_thread_ops); |
c11d79f2 | 1860 | |
0fe7bf7b | 1861 | /* Notice when object files get loaded and unloaded. */ |
06d3b283 | 1862 | observer_attach_new_objfile (new_objfile); |
8e2c28d4 | 1863 | |
b3ccfe11 TT |
1864 | /* Add ourselves to inferior_created event chain. |
1865 | This is needed to enable the thread target on "attach". */ | |
1866 | observer_attach_inferior_created (aix_thread_inferior_created); | |
1867 | ||
577b7047 | 1868 | add_setshow_boolean_cmd ("aix-thread", class_maintenance, &debug_aix_thread, |
0963b4bd MS |
1869 | _("Set debugging of AIX thread module."), |
1870 | _("Show debugging of AIX thread module."), | |
1871 | _("Enables debugging output (used to debug GDB)."), | |
1872 | NULL, NULL, | |
1873 | /* FIXME: i18n: Debugging of AIX thread | |
1874 | module is \"%d\". */ | |
1875 | &setdebuglist, &showdebuglist); | |
c11d79f2 | 1876 | } |