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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" |
76727919 | 49 | #include "observable.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 | |
f6ac5f3d PA |
111 | class aix_thread_target final : public target_ops |
112 | { | |
113 | public: | |
114 | aix_thread_target () | |
115 | { to_stratum = thread_stratum; } | |
116 | ||
117 | const char *shortname () override | |
118 | { return "aix-threads"; } | |
119 | const char *longname () override | |
120 | { return _("AIX pthread support"); } | |
121 | const char *doc () override | |
122 | { return _("AIX pthread support"); } | |
123 | ||
124 | void detach (inferior *, int) override; | |
125 | void resume (ptid_t, int, enum gdb_signal) override; | |
126 | ptid_t wait (ptid_t, struct target_waitstatus *, int) override; | |
127 | ||
128 | void fetch_registers (struct regcache *, int) override; | |
129 | void store_registers (struct regcache *, int) override; | |
130 | ||
131 | enum target_xfer_status xfer_partial (enum target_object object, | |
132 | const char *annex, | |
133 | gdb_byte *readbuf, | |
134 | const gdb_byte *writebuf, | |
135 | ULONGEST offset, ULONGEST len, | |
136 | ULONGEST *xfered_len) override; | |
137 | ||
138 | void mourn_inferior () override; | |
139 | ||
57810aa7 | 140 | bool thread_alive (ptid_t ptid) override; |
f6ac5f3d PA |
141 | |
142 | const char *pid_to_str (ptid_t) override; | |
143 | ||
144 | const char *extra_thread_info (struct thread_info *) override; | |
145 | ||
146 | ptid_t get_ada_task_ptid (long lwp, long thread) override; | |
147 | }; | |
148 | ||
149 | static aix_thread_target aix_thread_ops; | |
c11d79f2 | 150 | |
0fe7bf7b MS |
151 | /* Address of the function that libpthread will call when libpthdebug |
152 | is ready to be initialized. */ | |
c11d79f2 KB |
153 | |
154 | static CORE_ADDR pd_brk_addr; | |
155 | ||
0fe7bf7b | 156 | /* Whether the current application is debuggable by pthdb. */ |
c11d79f2 KB |
157 | |
158 | static int pd_able = 0; | |
159 | ||
0fe7bf7b | 160 | /* Whether a threaded application is being debugged. */ |
c11d79f2 KB |
161 | |
162 | static int pd_active = 0; | |
163 | ||
0fe7bf7b MS |
164 | /* Whether the current architecture is 64-bit. |
165 | Only valid when pd_able is true. */ | |
c11d79f2 KB |
166 | |
167 | static int arch64; | |
168 | ||
0fe7bf7b | 169 | /* Forward declarations for pthdb callbacks. */ |
c11d79f2 KB |
170 | |
171 | static int pdc_symbol_addrs (pthdb_user_t, pthdb_symbol_t *, int); | |
172 | static int pdc_read_data (pthdb_user_t, void *, pthdb_addr_t, size_t); | |
173 | static int pdc_write_data (pthdb_user_t, void *, pthdb_addr_t, size_t); | |
174 | static int pdc_read_regs (pthdb_user_t user, pthdb_tid_t tid, | |
0fe7bf7b MS |
175 | unsigned long long flags, |
176 | pthdb_context_t *context); | |
c11d79f2 | 177 | static int pdc_write_regs (pthdb_user_t user, pthdb_tid_t tid, |
0fe7bf7b MS |
178 | unsigned long long flags, |
179 | pthdb_context_t *context); | |
c11d79f2 KB |
180 | static int pdc_alloc (pthdb_user_t, size_t, void **); |
181 | static int pdc_realloc (pthdb_user_t, void *, size_t, void **); | |
182 | static int pdc_dealloc (pthdb_user_t, void *); | |
183 | ||
0fe7bf7b | 184 | /* pthdb callbacks. */ |
c11d79f2 KB |
185 | |
186 | static pthdb_callbacks_t pd_callbacks = { | |
187 | pdc_symbol_addrs, | |
188 | pdc_read_data, | |
189 | pdc_write_data, | |
190 | pdc_read_regs, | |
191 | pdc_write_regs, | |
192 | pdc_alloc, | |
193 | pdc_realloc, | |
194 | pdc_dealloc, | |
195 | NULL | |
196 | }; | |
197 | ||
0fe7bf7b | 198 | /* Current pthdb session. */ |
c11d79f2 KB |
199 | |
200 | static pthdb_session_t pd_session; | |
201 | ||
0fe7bf7b MS |
202 | /* Return a printable representation of pthdebug function return |
203 | STATUS. */ | |
c11d79f2 | 204 | |
0a31ccfb | 205 | static const char * |
c11d79f2 KB |
206 | pd_status2str (int status) |
207 | { | |
208 | switch (status) | |
209 | { | |
210 | case PTHDB_SUCCESS: return "SUCCESS"; | |
211 | case PTHDB_NOSYS: return "NOSYS"; | |
212 | case PTHDB_NOTSUP: return "NOTSUP"; | |
213 | case PTHDB_BAD_VERSION: return "BAD_VERSION"; | |
214 | case PTHDB_BAD_USER: return "BAD_USER"; | |
215 | case PTHDB_BAD_SESSION: return "BAD_SESSION"; | |
216 | case PTHDB_BAD_MODE: return "BAD_MODE"; | |
217 | case PTHDB_BAD_FLAGS: return "BAD_FLAGS"; | |
218 | case PTHDB_BAD_CALLBACK: return "BAD_CALLBACK"; | |
219 | case PTHDB_BAD_POINTER: return "BAD_POINTER"; | |
220 | case PTHDB_BAD_CMD: return "BAD_CMD"; | |
221 | case PTHDB_BAD_PTHREAD: return "BAD_PTHREAD"; | |
222 | case PTHDB_BAD_ATTR: return "BAD_ATTR"; | |
223 | case PTHDB_BAD_MUTEX: return "BAD_MUTEX"; | |
224 | case PTHDB_BAD_MUTEXATTR: return "BAD_MUTEXATTR"; | |
225 | case PTHDB_BAD_COND: return "BAD_COND"; | |
226 | case PTHDB_BAD_CONDATTR: return "BAD_CONDATTR"; | |
227 | case PTHDB_BAD_RWLOCK: return "BAD_RWLOCK"; | |
228 | case PTHDB_BAD_RWLOCKATTR: return "BAD_RWLOCKATTR"; | |
229 | case PTHDB_BAD_KEY: return "BAD_KEY"; | |
230 | case PTHDB_BAD_PTID: return "BAD_PTID"; | |
231 | case PTHDB_BAD_TID: return "BAD_TID"; | |
232 | case PTHDB_CALLBACK: return "CALLBACK"; | |
233 | case PTHDB_CONTEXT: return "CONTEXT"; | |
234 | case PTHDB_HELD: return "HELD"; | |
235 | case PTHDB_NOT_HELD: return "NOT_HELD"; | |
236 | case PTHDB_MEMORY: return "MEMORY"; | |
237 | case PTHDB_NOT_PTHREADED: return "NOT_PTHREADED"; | |
238 | case PTHDB_SYMBOL: return "SYMBOL"; | |
239 | case PTHDB_NOT_AVAIL: return "NOT_AVAIL"; | |
240 | case PTHDB_INTERNAL: return "INTERNAL"; | |
241 | default: return "UNKNOWN"; | |
242 | } | |
243 | } | |
244 | ||
0fe7bf7b MS |
245 | /* A call to ptrace(REQ, ID, ...) just returned RET. Check for |
246 | exceptional conditions and either return nonlocally or else return | |
247 | 1 for success and 0 for failure. */ | |
c11d79f2 KB |
248 | |
249 | static int | |
250 | ptrace_check (int req, int id, int ret) | |
251 | { | |
252 | if (ret == 0 && !errno) | |
253 | return 1; | |
254 | ||
0fe7bf7b MS |
255 | /* According to ptrace(2), ptrace may fail with EPERM if "the |
256 | Identifier parameter corresponds to a kernel thread which is | |
257 | stopped in kernel mode and whose computational state cannot be | |
258 | read or written." This happens quite often with register reads. */ | |
c11d79f2 KB |
259 | |
260 | switch (req) | |
261 | { | |
262 | case PTT_READ_GPRS: | |
263 | case PTT_READ_FPRS: | |
264 | case PTT_READ_SPRS: | |
265 | if (ret == -1 && errno == EPERM) | |
42cc437f KB |
266 | { |
267 | if (debug_aix_thread) | |
0fe7bf7b | 268 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 269 | "ptrace (%d, %d) = %d (errno = %d)\n", |
42cc437f KB |
270 | req, id, ret, errno); |
271 | return ret == -1 ? 0 : 1; | |
272 | } | |
c11d79f2 KB |
273 | break; |
274 | } | |
edefbb7c | 275 | error (_("aix-thread: ptrace (%d, %d) returned %d (errno = %d %s)"), |
be006b8b | 276 | req, id, ret, errno, safe_strerror (errno)); |
0fe7bf7b | 277 | return 0; /* Not reached. */ |
c11d79f2 KB |
278 | } |
279 | ||
fecf803e UW |
280 | /* Call ptracex (REQ, ID, ADDR, DATA, BUF) or |
281 | ptrace64 (REQ, ID, ADDR, DATA, BUF) if HAVE_PTRACE64. | |
282 | Return success. */ | |
283 | ||
284 | #ifdef HAVE_PTRACE64 | |
285 | # define ptracex(request, pid, addr, data, buf) \ | |
286 | ptrace64 (request, pid, addr, data, buf) | |
287 | #endif | |
c11d79f2 KB |
288 | |
289 | static int | |
290 | ptrace64aix (int req, int id, long long addr, int data, int *buf) | |
291 | { | |
292 | errno = 0; | |
293 | return ptrace_check (req, id, ptracex (req, id, addr, data, buf)); | |
294 | } | |
295 | ||
fecf803e UW |
296 | /* Call ptrace (REQ, ID, ADDR, DATA, BUF) or |
297 | ptrace64 (REQ, ID, ADDR, DATA, BUF) if HAVE_PTRACE64. | |
298 | Return success. */ | |
299 | ||
300 | #ifdef HAVE_PTRACE64 | |
301 | # define ptrace(request, pid, addr, data, buf) \ | |
302 | ptrace64 (request, pid, addr, data, buf) | |
303 | # define addr_ptr long long | |
304 | #else | |
305 | # define addr_ptr int * | |
306 | #endif | |
c11d79f2 KB |
307 | |
308 | static int | |
fecf803e | 309 | ptrace32 (int req, int id, addr_ptr addr, int data, int *buf) |
c11d79f2 KB |
310 | { |
311 | errno = 0; | |
0fe7bf7b | 312 | return ptrace_check (req, id, |
26f0edc1 | 313 | ptrace (req, id, addr, data, buf)); |
c11d79f2 KB |
314 | } |
315 | ||
0fe7bf7b MS |
316 | /* If *PIDP is a composite process/thread id, convert it to a |
317 | process id. */ | |
c11d79f2 KB |
318 | |
319 | static void | |
320 | pid_to_prc (ptid_t *ptidp) | |
321 | { | |
322 | ptid_t ptid; | |
323 | ||
324 | ptid = *ptidp; | |
325 | if (PD_TID (ptid)) | |
dfd4cc63 | 326 | *ptidp = pid_to_ptid (ptid_get_pid (ptid)); |
c11d79f2 KB |
327 | } |
328 | ||
0fe7bf7b MS |
329 | /* pthdb callback: for <i> from 0 to COUNT, set SYMBOLS[<i>].addr to |
330 | the address of SYMBOLS[<i>].name. */ | |
c11d79f2 KB |
331 | |
332 | static int | |
333 | pdc_symbol_addrs (pthdb_user_t user, pthdb_symbol_t *symbols, int count) | |
334 | { | |
3b7344d5 | 335 | struct bound_minimal_symbol ms; |
c11d79f2 KB |
336 | int i; |
337 | char *name; | |
338 | ||
8e2c28d4 KB |
339 | if (debug_aix_thread) |
340 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 341 | "pdc_symbol_addrs (user = %ld, symbols = 0x%lx, count = %d)\n", |
8e2c28d4 | 342 | user, (long) symbols, count); |
c11d79f2 KB |
343 | |
344 | for (i = 0; i < count; i++) | |
345 | { | |
346 | name = symbols[i].name; | |
8e2c28d4 | 347 | if (debug_aix_thread) |
0fe7bf7b | 348 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 349 | " symbols[%d].name = \"%s\"\n", i, name); |
c11d79f2 KB |
350 | |
351 | if (!*name) | |
352 | symbols[i].addr = 0; | |
353 | else | |
354 | { | |
3b7344d5 TT |
355 | ms = lookup_minimal_symbol (name, NULL, NULL); |
356 | if (ms.minsym == NULL) | |
c11d79f2 | 357 | { |
8e2c28d4 | 358 | if (debug_aix_thread) |
27bae383 | 359 | fprintf_unfiltered (gdb_stdlog, " returning PDC_FAILURE\n"); |
c11d79f2 KB |
360 | return PDC_FAILURE; |
361 | } | |
77e371c0 | 362 | symbols[i].addr = BMSYMBOL_VALUE_ADDRESS (ms); |
c11d79f2 | 363 | } |
8e2c28d4 | 364 | if (debug_aix_thread) |
27bae383 | 365 | fprintf_unfiltered (gdb_stdlog, " symbols[%d].addr = %s\n", |
bb599908 | 366 | i, hex_string (symbols[i].addr)); |
c11d79f2 | 367 | } |
8e2c28d4 | 368 | if (debug_aix_thread) |
27bae383 | 369 | fprintf_unfiltered (gdb_stdlog, " returning PDC_SUCCESS\n"); |
c11d79f2 KB |
370 | return PDC_SUCCESS; |
371 | } | |
372 | ||
0fe7bf7b MS |
373 | /* Read registers call back function should be able to read the |
374 | context information of a debuggee kernel thread from an active | |
375 | process or from a core file. The information should be formatted | |
376 | in context64 form for both 32-bit and 64-bit process. | |
377 | If successful return 0, else non-zero is returned. */ | |
378 | ||
c11d79f2 KB |
379 | static int |
380 | pdc_read_regs (pthdb_user_t user, | |
381 | pthdb_tid_t tid, | |
382 | unsigned long long flags, | |
383 | pthdb_context_t *context) | |
384 | { | |
0fe7bf7b MS |
385 | /* This function doesn't appear to be used, so we could probably |
386 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
387 | complain and several thread debug functions will fail. In case | |
388 | this is needed, I have implemented what I think it should do, | |
389 | however this code is untested. */ | |
390 | ||
063715bf JB |
391 | uint64_t gprs64[ppc_num_gprs]; |
392 | uint32_t gprs32[ppc_num_gprs]; | |
393 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
394 | struct ptxsprs sprs64; |
395 | struct ptsprs sprs32; | |
396 | ||
8e2c28d4 | 397 | if (debug_aix_thread) |
27bae383 | 398 | fprintf_unfiltered (gdb_stdlog, "pdc_read_regs tid=%d flags=%s\n", |
bb599908 | 399 | (int) tid, hex_string (flags)); |
c11d79f2 | 400 | |
0fe7bf7b | 401 | /* General-purpose registers. */ |
c11d79f2 KB |
402 | if (flags & PTHDB_FLAG_GPRS) |
403 | { | |
404 | if (arch64) | |
405 | { | |
0fe7bf7b MS |
406 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
407 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 KB |
408 | memset (gprs64, 0, sizeof (gprs64)); |
409 | memcpy (context->gpr, gprs64, sizeof(gprs64)); | |
410 | } | |
411 | else | |
412 | { | |
3b631e37 | 413 | if (!ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL)) |
c11d79f2 KB |
414 | memset (gprs32, 0, sizeof (gprs32)); |
415 | memcpy (context->gpr, gprs32, sizeof(gprs32)); | |
416 | } | |
417 | } | |
418 | ||
0fe7bf7b | 419 | /* Floating-point registers. */ |
c11d79f2 KB |
420 | if (flags & PTHDB_FLAG_FPRS) |
421 | { | |
3b631e37 | 422 | if (!ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL)) |
c11d79f2 | 423 | memset (fprs, 0, sizeof (fprs)); |
46bba1ef | 424 | memcpy (context->fpr, fprs, sizeof(fprs)); |
c11d79f2 KB |
425 | } |
426 | ||
0fe7bf7b | 427 | /* Special-purpose registers. */ |
c11d79f2 KB |
428 | if (flags & PTHDB_FLAG_SPRS) |
429 | { | |
430 | if (arch64) | |
431 | { | |
0fe7bf7b MS |
432 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
433 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 KB |
434 | memset (&sprs64, 0, sizeof (sprs64)); |
435 | memcpy (&context->msr, &sprs64, sizeof(sprs64)); | |
436 | } | |
437 | else | |
438 | { | |
3b631e37 | 439 | if (!ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL)) |
c11d79f2 KB |
440 | memset (&sprs32, 0, sizeof (sprs32)); |
441 | memcpy (&context->msr, &sprs32, sizeof(sprs32)); | |
442 | } | |
443 | } | |
444 | return 0; | |
445 | } | |
446 | ||
0fe7bf7b | 447 | /* Write register function should be able to write requested context |
0963b4bd | 448 | information to specified debuggee's kernel thread id. |
0fe7bf7b MS |
449 | If successful return 0, else non-zero is returned. */ |
450 | ||
c11d79f2 KB |
451 | static int |
452 | pdc_write_regs (pthdb_user_t user, | |
453 | pthdb_tid_t tid, | |
454 | unsigned long long flags, | |
455 | pthdb_context_t *context) | |
456 | { | |
0fe7bf7b MS |
457 | /* This function doesn't appear to be used, so we could probably |
458 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
459 | complain and several thread debug functions will fail. In case | |
460 | this is needed, I have implemented what I think it should do, | |
461 | however this code is untested. */ | |
c11d79f2 | 462 | |
8e2c28d4 | 463 | if (debug_aix_thread) |
27bae383 | 464 | fprintf_unfiltered (gdb_stdlog, "pdc_write_regs tid=%d flags=%s\n", |
bb599908 | 465 | (int) tid, hex_string (flags)); |
c11d79f2 | 466 | |
0fe7bf7b | 467 | /* General-purpose registers. */ |
c11d79f2 KB |
468 | if (flags & PTHDB_FLAG_GPRS) |
469 | { | |
470 | if (arch64) | |
0fe7bf7b | 471 | ptrace64aix (PTT_WRITE_GPRS, tid, |
206d3d3c | 472 | (unsigned long) context->gpr, 0, NULL); |
c11d79f2 | 473 | else |
3b631e37 | 474 | ptrace32 (PTT_WRITE_GPRS, tid, (uintptr_t) context->gpr, 0, NULL); |
c11d79f2 KB |
475 | } |
476 | ||
0fe7bf7b | 477 | /* Floating-point registers. */ |
c11d79f2 KB |
478 | if (flags & PTHDB_FLAG_FPRS) |
479 | { | |
3b631e37 | 480 | ptrace32 (PTT_WRITE_FPRS, tid, (uintptr_t) context->fpr, 0, NULL); |
c11d79f2 KB |
481 | } |
482 | ||
0fe7bf7b | 483 | /* Special-purpose registers. */ |
c11d79f2 KB |
484 | if (flags & PTHDB_FLAG_SPRS) |
485 | { | |
486 | if (arch64) | |
487 | { | |
0fe7bf7b MS |
488 | ptrace64aix (PTT_WRITE_SPRS, tid, |
489 | (unsigned long) &context->msr, 0, NULL); | |
c11d79f2 KB |
490 | } |
491 | else | |
492 | { | |
3b631e37 | 493 | ptrace32 (PTT_WRITE_SPRS, tid, (uintptr_t) &context->msr, 0, NULL); |
c11d79f2 KB |
494 | } |
495 | } | |
496 | return 0; | |
497 | } | |
498 | ||
0fe7bf7b | 499 | /* pthdb callback: read LEN bytes from process ADDR into BUF. */ |
c11d79f2 KB |
500 | |
501 | static int | |
0fe7bf7b MS |
502 | pdc_read_data (pthdb_user_t user, void *buf, |
503 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
504 | { |
505 | int status, ret; | |
506 | ||
8e2c28d4 KB |
507 | if (debug_aix_thread) |
508 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 509 | "pdc_read_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 510 | user, (long) buf, hex_string (addr), len); |
c11d79f2 | 511 | |
71829b1a | 512 | status = target_read_memory (addr, (gdb_byte *) buf, len); |
c11d79f2 KB |
513 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; |
514 | ||
8e2c28d4 | 515 | if (debug_aix_thread) |
27bae383 | 516 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", |
0fe7bf7b | 517 | status, pd_status2str (ret)); |
c11d79f2 KB |
518 | return ret; |
519 | } | |
520 | ||
0fe7bf7b | 521 | /* pthdb callback: write LEN bytes from BUF to process ADDR. */ |
c11d79f2 KB |
522 | |
523 | static int | |
0fe7bf7b MS |
524 | pdc_write_data (pthdb_user_t user, void *buf, |
525 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
526 | { |
527 | int status, ret; | |
528 | ||
8e2c28d4 KB |
529 | if (debug_aix_thread) |
530 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 531 | "pdc_write_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 532 | user, (long) buf, hex_string (addr), len); |
c11d79f2 | 533 | |
71829b1a | 534 | status = target_write_memory (addr, (gdb_byte *) buf, len); |
c11d79f2 KB |
535 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; |
536 | ||
8e2c28d4 | 537 | if (debug_aix_thread) |
27bae383 | 538 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", status, |
8e2c28d4 | 539 | pd_status2str (ret)); |
c11d79f2 KB |
540 | return ret; |
541 | } | |
542 | ||
0fe7bf7b MS |
543 | /* pthdb callback: allocate a LEN-byte buffer and store a pointer to it |
544 | in BUFP. */ | |
c11d79f2 KB |
545 | |
546 | static int | |
547 | pdc_alloc (pthdb_user_t user, size_t len, void **bufp) | |
548 | { | |
8e2c28d4 KB |
549 | if (debug_aix_thread) |
550 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 551 | "pdc_alloc (user = %ld, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 552 | user, len, (long) bufp); |
c11d79f2 | 553 | *bufp = xmalloc (len); |
8e2c28d4 | 554 | if (debug_aix_thread) |
0fe7bf7b | 555 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 556 | " malloc returned 0x%lx\n", (long) *bufp); |
0fe7bf7b MS |
557 | |
558 | /* Note: xmalloc() can't return 0; therefore PDC_FAILURE will never | |
559 | be returned. */ | |
560 | ||
c11d79f2 KB |
561 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
562 | } | |
563 | ||
0fe7bf7b MS |
564 | /* pthdb callback: reallocate BUF, which was allocated by the alloc or |
565 | realloc callback, so that it contains LEN bytes, and store a | |
566 | pointer to the result in BUFP. */ | |
c11d79f2 KB |
567 | |
568 | static int | |
569 | pdc_realloc (pthdb_user_t user, void *buf, size_t len, void **bufp) | |
570 | { | |
8e2c28d4 KB |
571 | if (debug_aix_thread) |
572 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 573 | "pdc_realloc (user = %ld, buf = 0x%lx, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 574 | user, (long) buf, len, (long) bufp); |
be006b8b | 575 | *bufp = xrealloc (buf, len); |
8e2c28d4 | 576 | if (debug_aix_thread) |
0fe7bf7b | 577 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 578 | " realloc returned 0x%lx\n", (long) *bufp); |
c11d79f2 KB |
579 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
580 | } | |
581 | ||
0fe7bf7b MS |
582 | /* pthdb callback: free BUF, which was allocated by the alloc or |
583 | realloc callback. */ | |
c11d79f2 KB |
584 | |
585 | static int | |
586 | pdc_dealloc (pthdb_user_t user, void *buf) | |
587 | { | |
8e2c28d4 | 588 | if (debug_aix_thread) |
0fe7bf7b | 589 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 590 | "pdc_free (user = %ld, buf = 0x%lx)\n", user, |
8e2c28d4 | 591 | (long) buf); |
c11d79f2 KB |
592 | xfree (buf); |
593 | return PDC_SUCCESS; | |
594 | } | |
595 | ||
0fe7bf7b | 596 | /* Return a printable representation of pthread STATE. */ |
c11d79f2 KB |
597 | |
598 | static char * | |
599 | state2str (pthdb_state_t state) | |
600 | { | |
601 | switch (state) | |
602 | { | |
edefbb7c AC |
603 | case PST_IDLE: |
604 | /* i18n: Like "Thread-Id %d, [state] idle" */ | |
605 | return _("idle"); /* being created */ | |
606 | case PST_RUN: | |
607 | /* i18n: Like "Thread-Id %d, [state] running" */ | |
608 | return _("running"); /* running */ | |
609 | case PST_SLEEP: | |
610 | /* i18n: Like "Thread-Id %d, [state] sleeping" */ | |
611 | return _("sleeping"); /* awaiting an event */ | |
612 | case PST_READY: | |
613 | /* i18n: Like "Thread-Id %d, [state] ready" */ | |
614 | return _("ready"); /* runnable */ | |
615 | case PST_TERM: | |
616 | /* i18n: Like "Thread-Id %d, [state] finished" */ | |
617 | return _("finished"); /* awaiting a join/detach */ | |
618 | default: | |
619 | /* i18n: Like "Thread-Id %d, [state] unknown" */ | |
620 | return _("unknown"); | |
c11d79f2 KB |
621 | } |
622 | } | |
623 | ||
0fe7bf7b | 624 | /* qsort() comparison function for sorting pd_thread structs by pthid. */ |
c11d79f2 KB |
625 | |
626 | static int | |
627 | pcmp (const void *p1v, const void *p2v) | |
628 | { | |
629 | struct pd_thread *p1 = (struct pd_thread *) p1v; | |
630 | struct pd_thread *p2 = (struct pd_thread *) p2v; | |
631 | return p1->pthid < p2->pthid ? -1 : p1->pthid > p2->pthid; | |
632 | } | |
633 | ||
77f0be4e JB |
634 | /* iterate_over_threads() callback for counting GDB threads. |
635 | ||
636 | Do not count the main thread (whose tid is zero). This matches | |
637 | the list of threads provided by the pthreaddebug library, which | |
638 | does not include that main thread either, and thus allows us | |
639 | to compare the two lists. */ | |
c11d79f2 KB |
640 | |
641 | static int | |
642 | giter_count (struct thread_info *thread, void *countp) | |
643 | { | |
77f0be4e JB |
644 | if (PD_TID (thread->ptid)) |
645 | (*(int *) countp)++; | |
c11d79f2 KB |
646 | return 0; |
647 | } | |
648 | ||
77f0be4e JB |
649 | /* iterate_over_threads() callback for accumulating GDB thread pids. |
650 | ||
651 | Do not include the main thread (whose tid is zero). This matches | |
652 | the list of threads provided by the pthreaddebug library, which | |
653 | does not include that main thread either, and thus allows us | |
654 | to compare the two lists. */ | |
c11d79f2 KB |
655 | |
656 | static int | |
657 | giter_accum (struct thread_info *thread, void *bufp) | |
658 | { | |
77f0be4e JB |
659 | if (PD_TID (thread->ptid)) |
660 | { | |
661 | **(struct thread_info ***) bufp = thread; | |
662 | (*(struct thread_info ***) bufp)++; | |
663 | } | |
c11d79f2 KB |
664 | return 0; |
665 | } | |
666 | ||
667 | /* ptid comparison function */ | |
0fe7bf7b | 668 | |
c11d79f2 KB |
669 | static int |
670 | ptid_cmp (ptid_t ptid1, ptid_t ptid2) | |
671 | { | |
672 | int pid1, pid2; | |
673 | ||
674 | if (ptid_get_pid (ptid1) < ptid_get_pid (ptid2)) | |
675 | return -1; | |
676 | else if (ptid_get_pid (ptid1) > ptid_get_pid (ptid2)) | |
677 | return 1; | |
678 | else if (ptid_get_tid (ptid1) < ptid_get_tid (ptid2)) | |
679 | return -1; | |
680 | else if (ptid_get_tid (ptid1) > ptid_get_tid (ptid2)) | |
681 | return 1; | |
682 | else if (ptid_get_lwp (ptid1) < ptid_get_lwp (ptid2)) | |
683 | return -1; | |
684 | else if (ptid_get_lwp (ptid1) > ptid_get_lwp (ptid2)) | |
685 | return 1; | |
686 | else | |
687 | return 0; | |
688 | } | |
689 | ||
0fe7bf7b | 690 | /* qsort() comparison function for sorting thread_info structs by pid. */ |
c11d79f2 KB |
691 | |
692 | static int | |
693 | gcmp (const void *t1v, const void *t2v) | |
694 | { | |
695 | struct thread_info *t1 = *(struct thread_info **) t1v; | |
696 | struct thread_info *t2 = *(struct thread_info **) t2v; | |
697 | return ptid_cmp (t1->ptid, t2->ptid); | |
698 | } | |
699 | ||
9ad7bec7 JB |
700 | /* Search through the list of all kernel threads for the thread |
701 | that has stopped on a SIGTRAP signal, and return its TID. | |
702 | Return 0 if none found. */ | |
703 | ||
704 | static pthdb_tid_t | |
705 | get_signaled_thread (void) | |
706 | { | |
707 | struct thrdsinfo64 thrinf; | |
eff44fea | 708 | tid_t ktid = 0; |
9ad7bec7 JB |
709 | int result = 0; |
710 | ||
9ad7bec7 JB |
711 | while (1) |
712 | { | |
dfd4cc63 | 713 | if (getthrds (ptid_get_pid (inferior_ptid), &thrinf, |
9ad7bec7 JB |
714 | sizeof (thrinf), &ktid, 1) != 1) |
715 | break; | |
716 | ||
717 | if (thrinf.ti_cursig == SIGTRAP) | |
718 | return thrinf.ti_tid; | |
719 | } | |
720 | ||
721 | /* Didn't find any thread stopped on a SIGTRAP signal. */ | |
722 | return 0; | |
723 | } | |
724 | ||
c11d79f2 KB |
725 | /* Synchronize GDB's thread list with libpthdebug's. |
726 | ||
727 | There are some benefits of doing this every time the inferior stops: | |
728 | ||
0fe7bf7b MS |
729 | - allows users to run thread-specific commands without needing to |
730 | run "info threads" first | |
c11d79f2 KB |
731 | |
732 | - helps pthdb_tid_pthread() work properly (see "libpthdebug | |
733 | peculiarities" at the top of this module) | |
734 | ||
0fe7bf7b MS |
735 | - simplifies the demands placed on libpthdebug, which seems to |
736 | have difficulty with certain call patterns */ | |
c11d79f2 KB |
737 | |
738 | static void | |
739 | sync_threadlists (void) | |
740 | { | |
741 | int cmd, status, infpid; | |
742 | int pcount, psize, pi, gcount, gi; | |
743 | struct pd_thread *pbuf; | |
744 | struct thread_info **gbuf, **g, *thread; | |
745 | pthdb_pthread_t pdtid; | |
746 | pthread_t pthid; | |
747 | pthdb_tid_t tid; | |
c11d79f2 | 748 | |
0fe7bf7b | 749 | /* Accumulate an array of libpthdebug threads sorted by pthread id. */ |
c11d79f2 KB |
750 | |
751 | pcount = 0; | |
752 | psize = 1; | |
8d749320 | 753 | pbuf = XNEWVEC (struct pd_thread, psize); |
c11d79f2 KB |
754 | |
755 | for (cmd = PTHDB_LIST_FIRST;; cmd = PTHDB_LIST_NEXT) | |
756 | { | |
757 | status = pthdb_pthread (pd_session, &pdtid, cmd); | |
758 | if (status != PTHDB_SUCCESS || pdtid == PTHDB_INVALID_PTHREAD) | |
759 | break; | |
760 | ||
761 | status = pthdb_pthread_ptid (pd_session, pdtid, &pthid); | |
762 | if (status != PTHDB_SUCCESS || pthid == PTHDB_INVALID_PTID) | |
763 | continue; | |
764 | ||
765 | if (pcount == psize) | |
766 | { | |
767 | psize *= 2; | |
0fe7bf7b MS |
768 | pbuf = (struct pd_thread *) xrealloc (pbuf, |
769 | psize * sizeof *pbuf); | |
c11d79f2 KB |
770 | } |
771 | pbuf[pcount].pdtid = pdtid; | |
772 | pbuf[pcount].pthid = pthid; | |
773 | pcount++; | |
774 | } | |
775 | ||
776 | for (pi = 0; pi < pcount; pi++) | |
777 | { | |
778 | status = pthdb_pthread_tid (pd_session, pbuf[pi].pdtid, &tid); | |
779 | if (status != PTHDB_SUCCESS) | |
780 | tid = PTHDB_INVALID_TID; | |
781 | pbuf[pi].tid = tid; | |
782 | } | |
783 | ||
784 | qsort (pbuf, pcount, sizeof *pbuf, pcmp); | |
785 | ||
0fe7bf7b | 786 | /* Accumulate an array of GDB threads sorted by pid. */ |
c11d79f2 KB |
787 | |
788 | gcount = 0; | |
789 | iterate_over_threads (giter_count, &gcount); | |
8d749320 | 790 | g = gbuf = XNEWVEC (struct thread_info *, gcount); |
c11d79f2 KB |
791 | iterate_over_threads (giter_accum, &g); |
792 | qsort (gbuf, gcount, sizeof *gbuf, gcmp); | |
793 | ||
0fe7bf7b | 794 | /* Apply differences between the two arrays to GDB's thread list. */ |
c11d79f2 | 795 | |
dfd4cc63 | 796 | infpid = ptid_get_pid (inferior_ptid); |
c11d79f2 KB |
797 | for (pi = gi = 0; pi < pcount || gi < gcount;) |
798 | { | |
c11d79f2 | 799 | if (pi == pcount) |
c11d79f2 | 800 | { |
42cc437f | 801 | delete_thread (gbuf[gi]->ptid); |
c11d79f2 KB |
802 | gi++; |
803 | } | |
42cc437f | 804 | else if (gi == gcount) |
c11d79f2 | 805 | { |
7aabaf9d SM |
806 | aix_thread_info *priv = new aix_thread_info; |
807 | priv->pdtid = pbuf[pi].pdtid; | |
808 | priv->tid = pbuf[pi].tid; | |
809 | ||
810 | thread = add_thread_with_info (ptid_t (infpid, 0, pbuf[pi].pthid), priv); | |
811 | ||
c11d79f2 KB |
812 | pi++; |
813 | } | |
42cc437f KB |
814 | else |
815 | { | |
816 | ptid_t pptid, gptid; | |
817 | int cmp_result; | |
818 | ||
dfd4cc63 | 819 | pptid = ptid_build (infpid, 0, pbuf[pi].pthid); |
42cc437f KB |
820 | gptid = gbuf[gi]->ptid; |
821 | pdtid = pbuf[pi].pdtid; | |
822 | tid = pbuf[pi].tid; | |
c11d79f2 | 823 | |
42cc437f KB |
824 | cmp_result = ptid_cmp (pptid, gptid); |
825 | ||
826 | if (cmp_result == 0) | |
827 | { | |
7aabaf9d SM |
828 | aix_thread_info *priv = get_aix_thread_info (gbuf[gi]); |
829 | ||
830 | priv->pdtid = pdtid; | |
831 | priv->tid = tid; | |
42cc437f KB |
832 | pi++; |
833 | gi++; | |
834 | } | |
835 | else if (cmp_result > 0) | |
836 | { | |
837 | delete_thread (gptid); | |
838 | gi++; | |
839 | } | |
840 | else | |
841 | { | |
842 | thread = add_thread (pptid); | |
7aabaf9d SM |
843 | |
844 | aix_thread_info *priv = new aix_thread_info; | |
845 | thread->priv.reset (priv); | |
846 | priv->pdtid = pdtid; | |
847 | priv->tid = tid; | |
42cc437f KB |
848 | pi++; |
849 | } | |
850 | } | |
c11d79f2 KB |
851 | } |
852 | ||
853 | xfree (pbuf); | |
854 | xfree (gbuf); | |
855 | } | |
856 | ||
9ad7bec7 JB |
857 | /* Iterate_over_threads() callback for locating a thread, using |
858 | the TID of its associated kernel thread. */ | |
c11d79f2 KB |
859 | |
860 | static int | |
9ad7bec7 | 861 | iter_tid (struct thread_info *thread, void *tidp) |
c11d79f2 | 862 | { |
9ad7bec7 | 863 | const pthdb_tid_t tid = *(pthdb_tid_t *)tidp; |
7aabaf9d | 864 | aix_thread_info *priv = get_aix_thread_info (thread); |
c11d79f2 | 865 | |
7aabaf9d | 866 | return priv->tid == tid; |
c11d79f2 KB |
867 | } |
868 | ||
0fe7bf7b MS |
869 | /* Synchronize libpthdebug's state with the inferior and with GDB, |
870 | generate a composite process/thread <pid> for the current thread, | |
871 | set inferior_ptid to <pid> if SET_INFPID, and return <pid>. */ | |
c11d79f2 KB |
872 | |
873 | static ptid_t | |
874 | pd_update (int set_infpid) | |
875 | { | |
876 | int status; | |
877 | ptid_t ptid; | |
9ad7bec7 JB |
878 | pthdb_tid_t tid; |
879 | struct thread_info *thread = NULL; | |
c11d79f2 KB |
880 | |
881 | if (!pd_active) | |
882 | return inferior_ptid; | |
883 | ||
884 | status = pthdb_session_update (pd_session); | |
885 | if (status != PTHDB_SUCCESS) | |
886 | return inferior_ptid; | |
887 | ||
888 | sync_threadlists (); | |
889 | ||
0fe7bf7b | 890 | /* Define "current thread" as one that just received a trap signal. */ |
c11d79f2 | 891 | |
9ad7bec7 JB |
892 | tid = get_signaled_thread (); |
893 | if (tid != 0) | |
894 | thread = iterate_over_threads (iter_tid, &tid); | |
c11d79f2 KB |
895 | if (!thread) |
896 | ptid = inferior_ptid; | |
897 | else | |
898 | { | |
899 | ptid = thread->ptid; | |
900 | if (set_infpid) | |
901 | inferior_ptid = ptid; | |
902 | } | |
903 | return ptid; | |
904 | } | |
905 | ||
0963b4bd | 906 | /* Try to start debugging threads in the current process. |
0fe7bf7b MS |
907 | If successful and SET_INFPID, set inferior_ptid to reflect the |
908 | current thread. */ | |
c11d79f2 KB |
909 | |
910 | static ptid_t | |
911 | pd_activate (int set_infpid) | |
912 | { | |
913 | int status; | |
914 | ||
915 | status = pthdb_session_init (PD_USER, arch64 ? PEM_64BIT : PEM_32BIT, | |
0fe7bf7b MS |
916 | PTHDB_FLAG_REGS, &pd_callbacks, |
917 | &pd_session); | |
c11d79f2 KB |
918 | if (status != PTHDB_SUCCESS) |
919 | { | |
920 | return inferior_ptid; | |
921 | } | |
922 | pd_active = 1; | |
923 | return pd_update (set_infpid); | |
924 | } | |
925 | ||
0fe7bf7b | 926 | /* Undo the effects of pd_activate(). */ |
c11d79f2 KB |
927 | |
928 | static void | |
929 | pd_deactivate (void) | |
930 | { | |
931 | if (!pd_active) | |
932 | return; | |
933 | pthdb_session_destroy (pd_session); | |
934 | ||
935 | pid_to_prc (&inferior_ptid); | |
936 | pd_active = 0; | |
937 | } | |
938 | ||
0fe7bf7b MS |
939 | /* An object file has just been loaded. Check whether the current |
940 | application is pthreaded, and if so, prepare for thread debugging. */ | |
c11d79f2 KB |
941 | |
942 | static void | |
943 | pd_enable (void) | |
944 | { | |
945 | int status; | |
946 | char *stub_name; | |
3b7344d5 | 947 | struct bound_minimal_symbol ms; |
c11d79f2 | 948 | |
0fe7bf7b | 949 | /* Don't initialize twice. */ |
c11d79f2 KB |
950 | if (pd_able) |
951 | return; | |
952 | ||
0fe7bf7b | 953 | /* Check application word size. */ |
f5656ead | 954 | arch64 = register_size (target_gdbarch (), 0) == 8; |
c11d79f2 | 955 | |
0fe7bf7b | 956 | /* Check whether the application is pthreaded. */ |
c11d79f2 | 957 | stub_name = NULL; |
0fe7bf7b MS |
958 | status = pthdb_session_pthreaded (PD_USER, PTHDB_FLAG_REGS, |
959 | &pd_callbacks, &stub_name); | |
f8bf5763 PM |
960 | if ((status != PTHDB_SUCCESS |
961 | && status != PTHDB_NOT_PTHREADED) || !stub_name) | |
c11d79f2 KB |
962 | return; |
963 | ||
0fe7bf7b | 964 | /* Set a breakpoint on the returned stub function. */ |
3b7344d5 TT |
965 | ms = lookup_minimal_symbol (stub_name, NULL, NULL); |
966 | if (ms.minsym == NULL) | |
c11d79f2 | 967 | return; |
77e371c0 | 968 | pd_brk_addr = BMSYMBOL_VALUE_ADDRESS (ms); |
f5656ead | 969 | if (!create_thread_event_breakpoint (target_gdbarch (), pd_brk_addr)) |
c11d79f2 KB |
970 | return; |
971 | ||
0fe7bf7b | 972 | /* Prepare for thread debugging. */ |
206d3d3c | 973 | push_target (&aix_thread_ops); |
c11d79f2 KB |
974 | pd_able = 1; |
975 | ||
0fe7bf7b MS |
976 | /* If we're debugging a core file or an attached inferior, the |
977 | pthread library may already have been initialized, so try to | |
978 | activate thread debugging. */ | |
c11d79f2 KB |
979 | pd_activate (1); |
980 | } | |
981 | ||
0fe7bf7b | 982 | /* Undo the effects of pd_enable(). */ |
c11d79f2 KB |
983 | |
984 | static void | |
985 | pd_disable (void) | |
986 | { | |
987 | if (!pd_able) | |
988 | return; | |
989 | if (pd_active) | |
990 | pd_deactivate (); | |
991 | pd_able = 0; | |
206d3d3c | 992 | unpush_target (&aix_thread_ops); |
c11d79f2 KB |
993 | } |
994 | ||
06d3b283 | 995 | /* new_objfile observer callback. |
c11d79f2 | 996 | |
0fe7bf7b MS |
997 | If OBJFILE is non-null, check whether a threaded application is |
998 | being debugged, and if so, prepare for thread debugging. | |
c11d79f2 | 999 | |
0fe7bf7b | 1000 | If OBJFILE is null, stop debugging threads. */ |
c11d79f2 KB |
1001 | |
1002 | static void | |
1003 | new_objfile (struct objfile *objfile) | |
1004 | { | |
1005 | if (objfile) | |
1006 | pd_enable (); | |
1007 | else | |
1008 | pd_disable (); | |
c11d79f2 KB |
1009 | } |
1010 | ||
0fe7bf7b | 1011 | /* Attach to process specified by ARGS. */ |
c11d79f2 KB |
1012 | |
1013 | static void | |
b3ccfe11 | 1014 | aix_thread_inferior_created (struct target_ops *ops, int from_tty) |
c11d79f2 | 1015 | { |
b3ccfe11 | 1016 | pd_enable (); |
c11d79f2 KB |
1017 | } |
1018 | ||
206d3d3c | 1019 | /* Detach from the process attached to by aix_thread_attach(). */ |
c11d79f2 | 1020 | |
f6ac5f3d PA |
1021 | void |
1022 | aix_thread_target::detach (inferior *inf, int from_tty) | |
c11d79f2 | 1023 | { |
f6ac5f3d | 1024 | struct target_ops *beneath = find_target_beneath (this); |
d30acaa7 | 1025 | |
6c0c456d | 1026 | pd_disable (); |
f6ac5f3d | 1027 | beneath->detach (inf, from_tty); |
c11d79f2 KB |
1028 | } |
1029 | ||
1030 | /* Tell the inferior process to continue running thread PID if != -1 | |
0fe7bf7b | 1031 | and all threads otherwise. */ |
c11d79f2 | 1032 | |
f6ac5f3d PA |
1033 | void |
1034 | aix_thread_target::resume (ptid_t ptid, int step, enum gdb_signal sig) | |
c11d79f2 KB |
1035 | { |
1036 | struct thread_info *thread; | |
1037 | pthdb_tid_t tid[2]; | |
1038 | ||
1039 | if (!PD_TID (ptid)) | |
14fa3751 | 1040 | { |
2989a365 | 1041 | scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid); |
f6ac5f3d | 1042 | struct target_ops *beneath = find_target_beneath (this); |
d30acaa7 | 1043 | |
dfd4cc63 | 1044 | inferior_ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); |
f6ac5f3d | 1045 | beneath->resume (ptid, step, sig); |
14fa3751 | 1046 | } |
c11d79f2 KB |
1047 | else |
1048 | { | |
e09875d4 | 1049 | thread = find_thread_ptid (ptid); |
c11d79f2 | 1050 | if (!thread) |
edefbb7c | 1051 | error (_("aix-thread resume: unknown pthread %ld"), |
dfd4cc63 | 1052 | ptid_get_lwp (ptid)); |
c11d79f2 | 1053 | |
7aabaf9d SM |
1054 | aix_thread_info *priv = get_aix_thread_info (thread); |
1055 | ||
1056 | tid[0] = priv->tid; | |
c11d79f2 | 1057 | if (tid[0] == PTHDB_INVALID_TID) |
edefbb7c | 1058 | error (_("aix-thread resume: no tid for pthread %ld"), |
dfd4cc63 | 1059 | ptid_get_lwp (ptid)); |
c11d79f2 KB |
1060 | tid[1] = 0; |
1061 | ||
1062 | if (arch64) | |
fecf803e | 1063 | ptrace64aix (PTT_CONTINUE, tid[0], (long long) 1, |
71829b1a | 1064 | gdb_signal_to_host (sig), (PTRACE_TYPE_ARG5) tid); |
c11d79f2 | 1065 | else |
fecf803e | 1066 | ptrace32 (PTT_CONTINUE, tid[0], (addr_ptr) 1, |
71829b1a | 1067 | gdb_signal_to_host (sig), (PTRACE_TYPE_ARG5) tid); |
c11d79f2 KB |
1068 | } |
1069 | } | |
1070 | ||
0fe7bf7b MS |
1071 | /* Wait for thread/process ID if != -1 or for any thread otherwise. |
1072 | If an error occurs, return -1, else return the pid of the stopped | |
1073 | thread. */ | |
c11d79f2 | 1074 | |
f6ac5f3d PA |
1075 | ptid_t |
1076 | aix_thread_target::wait (ptid_t ptid, struct target_waitstatus *status, | |
1077 | int options) | |
c11d79f2 | 1078 | { |
f6ac5f3d | 1079 | struct target_ops *beneath = find_target_beneath (this); |
14fa3751 | 1080 | |
2989a365 TT |
1081 | { |
1082 | scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid); | |
14fa3751 | 1083 | |
2989a365 TT |
1084 | pid_to_prc (&ptid); |
1085 | ||
1086 | inferior_ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); | |
f6ac5f3d | 1087 | ptid = beneath->wait (ptid, status, options); |
2989a365 | 1088 | } |
14fa3751 | 1089 | |
dfd4cc63 | 1090 | if (ptid_get_pid (ptid) == -1) |
c11d79f2 KB |
1091 | return pid_to_ptid (-1); |
1092 | ||
0fe7bf7b | 1093 | /* Check whether libpthdebug might be ready to be initialized. */ |
515630c5 | 1094 | if (!pd_active && status->kind == TARGET_WAITKIND_STOPPED |
a493e3e2 | 1095 | && status->value.sig == GDB_SIGNAL_TRAP) |
515630c5 UW |
1096 | { |
1097 | struct regcache *regcache = get_thread_regcache (ptid); | |
ac7936df | 1098 | struct gdbarch *gdbarch = regcache->arch (); |
515630c5 UW |
1099 | |
1100 | if (regcache_read_pc (regcache) | |
527a273a | 1101 | - gdbarch_decr_pc_after_break (gdbarch) == pd_brk_addr) |
515630c5 UW |
1102 | return pd_activate (0); |
1103 | } | |
c11d79f2 KB |
1104 | |
1105 | return pd_update (0); | |
1106 | } | |
1107 | ||
0fe7bf7b | 1108 | /* Record that the 64-bit general-purpose registers contain VALS. */ |
c11d79f2 KB |
1109 | |
1110 | static void | |
647478e0 | 1111 | supply_gprs64 (struct regcache *regcache, uint64_t *vals) |
c11d79f2 | 1112 | { |
ac7936df | 1113 | struct gdbarch_tdep *tdep = gdbarch_tdep (regcache->arch ()); |
c11d79f2 KB |
1114 | int regno; |
1115 | ||
063715bf | 1116 | for (regno = 0; regno < ppc_num_gprs; regno++) |
647478e0 | 1117 | regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + regno, |
23a6d369 | 1118 | (char *) (vals + regno)); |
c11d79f2 KB |
1119 | } |
1120 | ||
0fe7bf7b | 1121 | /* Record that 32-bit register REGNO contains VAL. */ |
c11d79f2 KB |
1122 | |
1123 | static void | |
647478e0 | 1124 | supply_reg32 (struct regcache *regcache, int regno, uint32_t val) |
c11d79f2 | 1125 | { |
647478e0 | 1126 | regcache_raw_supply (regcache, regno, (char *) &val); |
c11d79f2 KB |
1127 | } |
1128 | ||
0fe7bf7b | 1129 | /* Record that the floating-point registers contain VALS. */ |
c11d79f2 KB |
1130 | |
1131 | static void | |
647478e0 | 1132 | supply_fprs (struct regcache *regcache, double *vals) |
c11d79f2 | 1133 | { |
ac7936df | 1134 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1135 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
c11d79f2 KB |
1136 | int regno; |
1137 | ||
383f0f5b JB |
1138 | /* This function should never be called on architectures without |
1139 | floating-point registers. */ | |
c7f30c7a | 1140 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1141 | |
786c562f JB |
1142 | for (regno = tdep->ppc_fp0_regnum; |
1143 | regno < tdep->ppc_fp0_regnum + ppc_num_fprs; | |
1144 | regno++) | |
1145 | regcache_raw_supply (regcache, regno, | |
1146 | (char *) (vals + regno - tdep->ppc_fp0_regnum)); | |
c11d79f2 KB |
1147 | } |
1148 | ||
f1a91342 KB |
1149 | /* Predicate to test whether given register number is a "special" register. */ |
1150 | static int | |
9970f04b | 1151 | special_register_p (struct gdbarch *gdbarch, int regno) |
f1a91342 | 1152 | { |
9970f04b | 1153 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1154 | |
9970f04b | 1155 | return regno == gdbarch_pc_regnum (gdbarch) |
f1a91342 KB |
1156 | || regno == tdep->ppc_ps_regnum |
1157 | || regno == tdep->ppc_cr_regnum | |
1158 | || regno == tdep->ppc_lr_regnum | |
1159 | || regno == tdep->ppc_ctr_regnum | |
1160 | || regno == tdep->ppc_xer_regnum | |
383f0f5b | 1161 | || (tdep->ppc_fpscr_regnum >= 0 && regno == tdep->ppc_fpscr_regnum) |
f1a91342 KB |
1162 | || (tdep->ppc_mq_regnum >= 0 && regno == tdep->ppc_mq_regnum); |
1163 | } | |
1164 | ||
1165 | ||
0fe7bf7b MS |
1166 | /* Record that the special registers contain the specified 64-bit and |
1167 | 32-bit values. */ | |
c11d79f2 KB |
1168 | |
1169 | static void | |
647478e0 UW |
1170 | supply_sprs64 (struct regcache *regcache, |
1171 | uint64_t iar, uint64_t msr, uint32_t cr, | |
0e061eef KB |
1172 | uint64_t lr, uint64_t ctr, uint32_t xer, |
1173 | uint32_t fpscr) | |
c11d79f2 | 1174 | { |
ac7936df | 1175 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1176 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1177 | |
c7f30c7a | 1178 | regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch), |
3e8c568d | 1179 | (char *) &iar); |
647478e0 UW |
1180 | regcache_raw_supply (regcache, tdep->ppc_ps_regnum, (char *) &msr); |
1181 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, (char *) &cr); | |
1182 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, (char *) &lr); | |
1183 | regcache_raw_supply (regcache, tdep->ppc_ctr_regnum, (char *) &ctr); | |
1184 | regcache_raw_supply (regcache, tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1185 | if (tdep->ppc_fpscr_regnum >= 0) |
647478e0 | 1186 | regcache_raw_supply (regcache, tdep->ppc_fpscr_regnum, |
23a6d369 | 1187 | (char *) &fpscr); |
c11d79f2 KB |
1188 | } |
1189 | ||
0fe7bf7b MS |
1190 | /* Record that the special registers contain the specified 32-bit |
1191 | values. */ | |
c11d79f2 KB |
1192 | |
1193 | static void | |
647478e0 UW |
1194 | supply_sprs32 (struct regcache *regcache, |
1195 | uint32_t iar, uint32_t msr, uint32_t cr, | |
0e061eef KB |
1196 | uint32_t lr, uint32_t ctr, uint32_t xer, |
1197 | uint32_t fpscr) | |
c11d79f2 | 1198 | { |
ac7936df | 1199 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1200 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1201 | |
c7f30c7a | 1202 | regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch), |
3e8c568d | 1203 | (char *) &iar); |
647478e0 UW |
1204 | regcache_raw_supply (regcache, tdep->ppc_ps_regnum, (char *) &msr); |
1205 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, (char *) &cr); | |
1206 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, (char *) &lr); | |
1207 | regcache_raw_supply (regcache, tdep->ppc_ctr_regnum, (char *) &ctr); | |
1208 | regcache_raw_supply (regcache, tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1209 | if (tdep->ppc_fpscr_regnum >= 0) |
647478e0 | 1210 | regcache_raw_supply (regcache, tdep->ppc_fpscr_regnum, |
23a6d369 | 1211 | (char *) &fpscr); |
c11d79f2 KB |
1212 | } |
1213 | ||
1214 | /* Fetch all registers from pthread PDTID, which doesn't have a kernel | |
1215 | thread. | |
1216 | ||
0fe7bf7b MS |
1217 | There's no way to query a single register from a non-kernel |
1218 | pthread, so there's no need for a single-register version of this | |
1219 | function. */ | |
c11d79f2 KB |
1220 | |
1221 | static void | |
647478e0 | 1222 | fetch_regs_user_thread (struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1223 | { |
ac7936df | 1224 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1225 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
c11d79f2 KB |
1226 | int status, i; |
1227 | pthdb_context_t ctx; | |
1228 | ||
8e2c28d4 | 1229 | if (debug_aix_thread) |
206d3d3c KB |
1230 | fprintf_unfiltered (gdb_stdlog, |
1231 | "fetch_regs_user_thread %lx\n", (long) pdtid); | |
c11d79f2 KB |
1232 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1233 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1234 | error (_("aix-thread: fetch_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1235 | pd_status2str (status)); |
c11d79f2 | 1236 | |
0fe7bf7b | 1237 | /* General-purpose registers. */ |
c11d79f2 KB |
1238 | |
1239 | if (arch64) | |
647478e0 | 1240 | supply_gprs64 (regcache, ctx.gpr); |
c11d79f2 | 1241 | else |
063715bf | 1242 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1243 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, ctx.gpr[i]); |
c11d79f2 | 1244 | |
0fe7bf7b | 1245 | /* Floating-point registers. */ |
c11d79f2 | 1246 | |
c7f30c7a | 1247 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1248 | supply_fprs (regcache, ctx.fpr); |
c11d79f2 | 1249 | |
0fe7bf7b | 1250 | /* Special registers. */ |
c11d79f2 KB |
1251 | |
1252 | if (arch64) | |
647478e0 UW |
1253 | supply_sprs64 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1254 | ctx.xer, ctx.fpscr); | |
c11d79f2 | 1255 | else |
647478e0 UW |
1256 | supply_sprs32 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1257 | ctx.xer, ctx.fpscr); | |
c11d79f2 KB |
1258 | } |
1259 | ||
0fe7bf7b MS |
1260 | /* Fetch register REGNO if != -1 or all registers otherwise from |
1261 | kernel thread TID. | |
c11d79f2 | 1262 | |
0fe7bf7b MS |
1263 | AIX provides a way to query all of a kernel thread's GPRs, FPRs, or |
1264 | SPRs, but there's no way to query individual registers within those | |
1265 | groups. Therefore, if REGNO != -1, this function fetches an entire | |
1266 | group. | |
c11d79f2 | 1267 | |
0fe7bf7b MS |
1268 | Unfortunately, kernel thread register queries often fail with |
1269 | EPERM, indicating that the thread is in kernel space. This breaks | |
1270 | backtraces of threads other than the current one. To make that | |
1271 | breakage obvious without throwing an error to top level (which is | |
1272 | bad e.g. during "info threads" output), zero registers that can't | |
1273 | be retrieved. */ | |
c11d79f2 KB |
1274 | |
1275 | static void | |
647478e0 UW |
1276 | fetch_regs_kernel_thread (struct regcache *regcache, int regno, |
1277 | pthdb_tid_t tid) | |
c11d79f2 | 1278 | { |
ac7936df | 1279 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1280 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
063715bf JB |
1281 | uint64_t gprs64[ppc_num_gprs]; |
1282 | uint32_t gprs32[ppc_num_gprs]; | |
1283 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
1284 | struct ptxsprs sprs64; |
1285 | struct ptsprs sprs32; | |
1286 | int i; | |
1287 | ||
8e2c28d4 KB |
1288 | if (debug_aix_thread) |
1289 | fprintf_unfiltered (gdb_stdlog, | |
206d3d3c KB |
1290 | "fetch_regs_kernel_thread tid=%lx regno=%d arch64=%d\n", |
1291 | (long) tid, regno, arch64); | |
c11d79f2 | 1292 | |
0fe7bf7b | 1293 | /* General-purpose registers. */ |
daf6dc85 JB |
1294 | if (regno == -1 |
1295 | || (tdep->ppc_gp0_regnum <= regno | |
1296 | && regno < tdep->ppc_gp0_regnum + ppc_num_gprs)) | |
c11d79f2 KB |
1297 | { |
1298 | if (arch64) | |
1299 | { | |
0fe7bf7b MS |
1300 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
1301 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 | 1302 | memset (gprs64, 0, sizeof (gprs64)); |
647478e0 | 1303 | supply_gprs64 (regcache, gprs64); |
c11d79f2 KB |
1304 | } |
1305 | else | |
1306 | { | |
3b631e37 | 1307 | if (!ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL)) |
c11d79f2 | 1308 | memset (gprs32, 0, sizeof (gprs32)); |
063715bf | 1309 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1310 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, gprs32[i]); |
c11d79f2 KB |
1311 | } |
1312 | } | |
1313 | ||
0fe7bf7b | 1314 | /* Floating-point registers. */ |
c11d79f2 | 1315 | |
c7f30c7a | 1316 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1317 | && (regno == -1 |
1318 | || (regno >= tdep->ppc_fp0_regnum | |
1319 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 | 1320 | { |
3b631e37 | 1321 | if (!ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL)) |
c11d79f2 | 1322 | memset (fprs, 0, sizeof (fprs)); |
647478e0 | 1323 | supply_fprs (regcache, fprs); |
c11d79f2 KB |
1324 | } |
1325 | ||
0fe7bf7b | 1326 | /* Special-purpose registers. */ |
c11d79f2 | 1327 | |
9970f04b | 1328 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1329 | { |
1330 | if (arch64) | |
1331 | { | |
0fe7bf7b MS |
1332 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
1333 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 | 1334 | memset (&sprs64, 0, sizeof (sprs64)); |
647478e0 UW |
1335 | supply_sprs64 (regcache, sprs64.pt_iar, sprs64.pt_msr, |
1336 | sprs64.pt_cr, sprs64.pt_lr, sprs64.pt_ctr, | |
1337 | sprs64.pt_xer, sprs64.pt_fpscr); | |
c11d79f2 KB |
1338 | } |
1339 | else | |
1340 | { | |
c7f30c7a | 1341 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1342 | |
3b631e37 | 1343 | if (!ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL)) |
c11d79f2 | 1344 | memset (&sprs32, 0, sizeof (sprs32)); |
647478e0 | 1345 | supply_sprs32 (regcache, sprs32.pt_iar, sprs32.pt_msr, sprs32.pt_cr, |
0e061eef KB |
1346 | sprs32.pt_lr, sprs32.pt_ctr, sprs32.pt_xer, |
1347 | sprs32.pt_fpscr); | |
c11d79f2 | 1348 | |
f1a91342 | 1349 | if (tdep->ppc_mq_regnum >= 0) |
647478e0 | 1350 | regcache_raw_supply (regcache, tdep->ppc_mq_regnum, |
23a6d369 | 1351 | (char *) &sprs32.pt_mq); |
c11d79f2 KB |
1352 | } |
1353 | } | |
1354 | } | |
1355 | ||
edb5fb00 SM |
1356 | /* Fetch register REGNO if != -1 or all registers otherwise from the |
1357 | thread/process connected to REGCACHE. */ | |
c11d79f2 | 1358 | |
f6ac5f3d PA |
1359 | void |
1360 | aix_thread_target::fetch_registers (struct regcache *regcache, int regno) | |
c11d79f2 KB |
1361 | { |
1362 | struct thread_info *thread; | |
1363 | pthdb_tid_t tid; | |
f6ac5f3d | 1364 | struct target_ops *beneath = find_target_beneath (this); |
c11d79f2 | 1365 | |
edb5fb00 | 1366 | if (!PD_TID (regcache_get_ptid (regcache))) |
f6ac5f3d | 1367 | beneath->fetch_registers (regcache, regno); |
c11d79f2 KB |
1368 | else |
1369 | { | |
edb5fb00 | 1370 | thread = find_thread_ptid (regcache_get_ptid (regcache)); |
7aabaf9d SM |
1371 | aix_thread_info *priv = get_aix_thread_info (thread); |
1372 | tid = priv->tid; | |
c11d79f2 KB |
1373 | |
1374 | if (tid == PTHDB_INVALID_TID) | |
7aabaf9d | 1375 | fetch_regs_user_thread (regcache, priv->pdtid); |
c11d79f2 | 1376 | else |
56be3814 | 1377 | fetch_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1378 | } |
1379 | } | |
1380 | ||
61c5da0b KB |
1381 | /* Store the gp registers into an array of uint32_t or uint64_t. */ |
1382 | ||
1383 | static void | |
647478e0 | 1384 | fill_gprs64 (const struct regcache *regcache, uint64_t *vals) |
61c5da0b | 1385 | { |
ac7936df | 1386 | struct gdbarch_tdep *tdep = gdbarch_tdep (regcache->arch ()); |
61c5da0b KB |
1387 | int regno; |
1388 | ||
daf6dc85 | 1389 | for (regno = 0; regno < ppc_num_gprs; regno++) |
672c9795 YQ |
1390 | if (REG_VALID == regcache_register_status (regcache, |
1391 | tdep->ppc_gp0_regnum + regno)) | |
647478e0 | 1392 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + regno, |
822c9732 | 1393 | vals + regno); |
61c5da0b KB |
1394 | } |
1395 | ||
1396 | static void | |
647478e0 | 1397 | fill_gprs32 (const struct regcache *regcache, uint32_t *vals) |
61c5da0b | 1398 | { |
ac7936df | 1399 | struct gdbarch_tdep *tdep = gdbarch_tdep (regcache->arch ()); |
61c5da0b KB |
1400 | int regno; |
1401 | ||
daf6dc85 | 1402 | for (regno = 0; regno < ppc_num_gprs; regno++) |
672c9795 YQ |
1403 | if (REG_VALID == regcache_register_status (regcache, |
1404 | tdep->ppc_gp0_regnum + regno)) | |
647478e0 | 1405 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + regno, |
822c9732 | 1406 | vals + regno); |
61c5da0b KB |
1407 | } |
1408 | ||
1409 | /* Store the floating point registers into a double array. */ | |
1410 | static void | |
647478e0 | 1411 | fill_fprs (const struct regcache *regcache, double *vals) |
61c5da0b | 1412 | { |
ac7936df | 1413 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1414 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
61c5da0b KB |
1415 | int regno; |
1416 | ||
383f0f5b JB |
1417 | /* This function should never be called on architectures without |
1418 | floating-point registers. */ | |
c7f30c7a | 1419 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1420 | |
366f009f JB |
1421 | for (regno = tdep->ppc_fp0_regnum; |
1422 | regno < tdep->ppc_fp0_regnum + ppc_num_fprs; | |
1423 | regno++) | |
672c9795 | 1424 | if (REG_VALID == regcache_register_status (regcache, regno)) |
e3ebf1bb JB |
1425 | regcache_raw_collect (regcache, regno, |
1426 | vals + regno - tdep->ppc_fp0_regnum); | |
61c5da0b KB |
1427 | } |
1428 | ||
c11d79f2 | 1429 | /* Store the special registers into the specified 64-bit and 32-bit |
0fe7bf7b | 1430 | locations. */ |
c11d79f2 KB |
1431 | |
1432 | static void | |
647478e0 UW |
1433 | fill_sprs64 (const struct regcache *regcache, |
1434 | uint64_t *iar, uint64_t *msr, uint32_t *cr, | |
0e061eef KB |
1435 | uint64_t *lr, uint64_t *ctr, uint32_t *xer, |
1436 | uint32_t *fpscr) | |
c11d79f2 | 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, | |
1445 | we should check all of the sizes. */ | |
3e8c568d | 1446 | gdb_assert (sizeof (*iar) == register_size |
c7f30c7a | 1447 | (gdbarch, 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 YQ |
1463 | && REG_VALID == regcache_register_status (regcache, |
1464 | tdep->ppc_fpscr_regnum)) | |
647478e0 | 1465 | regcache_raw_collect (regcache, tdep->ppc_fpscr_regnum, fpscr); |
61c5da0b KB |
1466 | } |
1467 | ||
1468 | static void | |
647478e0 UW |
1469 | fill_sprs32 (const struct regcache *regcache, |
1470 | uint32_t *iar, uint32_t *msr, uint32_t *cr, | |
0d16ee5d UW |
1471 | uint32_t *lr, uint32_t *ctr, uint32_t *xer, |
1472 | uint32_t *fpscr) | |
61c5da0b | 1473 | { |
ac7936df | 1474 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1475 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 KB |
1476 | |
1477 | /* Verify that the size of the size of the IAR buffer is the | |
1478 | same as the raw size of the PC (in the register cache). If | |
1479 | they're not, then either GDB has been built incorrectly, or | |
1480 | there's some other kind of internal error. To be really safe, | |
0d16ee5d | 1481 | we should check all of the sizes. */ |
c7f30c7a UW |
1482 | gdb_assert (sizeof (*iar) == register_size (gdbarch, |
1483 | gdbarch_pc_regnum (gdbarch))); | |
f1a91342 | 1484 | |
672c9795 YQ |
1485 | if (REG_VALID == regcache_register_status (regcache, |
1486 | gdbarch_pc_regnum (gdbarch))) | |
c7f30c7a | 1487 | regcache_raw_collect (regcache, gdbarch_pc_regnum (gdbarch), iar); |
672c9795 | 1488 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ps_regnum)) |
647478e0 | 1489 | regcache_raw_collect (regcache, tdep->ppc_ps_regnum, msr); |
672c9795 | 1490 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_cr_regnum)) |
647478e0 | 1491 | regcache_raw_collect (regcache, tdep->ppc_cr_regnum, cr); |
672c9795 | 1492 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_lr_regnum)) |
647478e0 | 1493 | regcache_raw_collect (regcache, tdep->ppc_lr_regnum, lr); |
672c9795 | 1494 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ctr_regnum)) |
647478e0 | 1495 | regcache_raw_collect (regcache, tdep->ppc_ctr_regnum, ctr); |
672c9795 | 1496 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_xer_regnum)) |
647478e0 | 1497 | regcache_raw_collect (regcache, tdep->ppc_xer_regnum, xer); |
383f0f5b | 1498 | if (tdep->ppc_fpscr_regnum >= 0 |
672c9795 | 1499 | && REG_VALID == regcache_register_status (regcache, tdep->ppc_fpscr_regnum)) |
647478e0 | 1500 | regcache_raw_collect (regcache, tdep->ppc_fpscr_regnum, fpscr); |
c11d79f2 KB |
1501 | } |
1502 | ||
1503 | /* Store all registers into pthread PDTID, which doesn't have a kernel | |
1504 | thread. | |
1505 | ||
0fe7bf7b MS |
1506 | It's possible to store a single register into a non-kernel pthread, |
1507 | but I doubt it's worth the effort. */ | |
c11d79f2 KB |
1508 | |
1509 | static void | |
647478e0 | 1510 | store_regs_user_thread (const struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1511 | { |
ac7936df | 1512 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1513 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
c11d79f2 KB |
1514 | int status, i; |
1515 | pthdb_context_t ctx; | |
61c5da0b KB |
1516 | uint32_t int32; |
1517 | uint64_t int64; | |
1518 | double dbl; | |
c11d79f2 | 1519 | |
8e2c28d4 | 1520 | if (debug_aix_thread) |
0fe7bf7b | 1521 | fprintf_unfiltered (gdb_stdlog, |
206d3d3c | 1522 | "store_regs_user_thread %lx\n", (long) pdtid); |
c11d79f2 | 1523 | |
0fe7bf7b MS |
1524 | /* Retrieve the thread's current context for its non-register |
1525 | values. */ | |
c11d79f2 KB |
1526 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1527 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1528 | error (_("aix-thread: store_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1529 | pd_status2str (status)); |
c11d79f2 | 1530 | |
61c5da0b | 1531 | /* Collect general-purpose register values from the regcache. */ |
c11d79f2 | 1532 | |
063715bf | 1533 | for (i = 0; i < ppc_num_gprs; i++) |
672c9795 YQ |
1534 | if (REG_VALID == regcache_register_status (regcache, |
1535 | tdep->ppc_gp0_regnum + i)) | |
cbe92db4 KB |
1536 | { |
1537 | if (arch64) | |
1538 | { | |
647478e0 | 1539 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + i, |
822c9732 | 1540 | (void *) &int64); |
cbe92db4 KB |
1541 | ctx.gpr[i] = int64; |
1542 | } | |
1543 | else | |
1544 | { | |
647478e0 | 1545 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + i, |
822c9732 | 1546 | (void *) &int32); |
cbe92db4 KB |
1547 | ctx.gpr[i] = int32; |
1548 | } | |
1549 | } | |
c11d79f2 | 1550 | |
61c5da0b | 1551 | /* Collect floating-point register values from the regcache. */ |
c7f30c7a | 1552 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1553 | fill_fprs (regcache, ctx.fpr); |
c11d79f2 | 1554 | |
61c5da0b KB |
1555 | /* Special registers (always kept in ctx as 64 bits). */ |
1556 | if (arch64) | |
1557 | { | |
647478e0 UW |
1558 | fill_sprs64 (regcache, &ctx.iar, &ctx.msr, &ctx.cr, &ctx.lr, &ctx.ctr, |
1559 | &ctx.xer, &ctx.fpscr); | |
61c5da0b KB |
1560 | } |
1561 | else | |
1562 | { | |
1563 | /* Problem: ctx.iar etc. are 64 bits, but raw_registers are 32. | |
0d16ee5d UW |
1564 | Solution: use 32-bit temp variables. */ |
1565 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1566 | tmp_fpscr; | |
61c5da0b | 1567 | |
647478e0 UW |
1568 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, &tmp_ctr, |
1569 | &tmp_xer, &tmp_fpscr); | |
672c9795 YQ |
1570 | if (REG_VALID == regcache_register_status (regcache, |
1571 | gdbarch_pc_regnum (gdbarch))) | |
cbe92db4 | 1572 | ctx.iar = tmp_iar; |
672c9795 | 1573 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ps_regnum)) |
cbe92db4 | 1574 | ctx.msr = tmp_msr; |
672c9795 | 1575 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_cr_regnum)) |
cbe92db4 | 1576 | ctx.cr = tmp_cr; |
672c9795 | 1577 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_lr_regnum)) |
cbe92db4 | 1578 | ctx.lr = tmp_lr; |
672c9795 YQ |
1579 | if (REG_VALID == regcache_register_status (regcache, |
1580 | tdep->ppc_ctr_regnum)) | |
cbe92db4 | 1581 | ctx.ctr = tmp_ctr; |
672c9795 YQ |
1582 | if (REG_VALID == regcache_register_status (regcache, |
1583 | tdep->ppc_xer_regnum)) | |
cbe92db4 | 1584 | ctx.xer = tmp_xer; |
672c9795 YQ |
1585 | if (REG_VALID == regcache_register_status (regcache, |
1586 | tdep->ppc_xer_regnum)) | |
0e061eef | 1587 | ctx.fpscr = tmp_fpscr; |
61c5da0b | 1588 | } |
c11d79f2 KB |
1589 | |
1590 | status = pthdb_pthread_setcontext (pd_session, pdtid, &ctx); | |
1591 | if (status != PTHDB_SUCCESS) | |
0963b4bd MS |
1592 | error (_("aix-thread: store_registers: " |
1593 | "pthdb_pthread_setcontext returned %s"), | |
14fa3751 | 1594 | pd_status2str (status)); |
c11d79f2 KB |
1595 | } |
1596 | ||
0fe7bf7b MS |
1597 | /* Store register REGNO if != -1 or all registers otherwise into |
1598 | kernel thread TID. | |
c11d79f2 | 1599 | |
0fe7bf7b MS |
1600 | AIX provides a way to set all of a kernel thread's GPRs, FPRs, or |
1601 | SPRs, but there's no way to set individual registers within those | |
1602 | groups. Therefore, if REGNO != -1, this function stores an entire | |
1603 | group. */ | |
c11d79f2 KB |
1604 | |
1605 | static void | |
647478e0 UW |
1606 | store_regs_kernel_thread (const struct regcache *regcache, int regno, |
1607 | pthdb_tid_t tid) | |
c11d79f2 | 1608 | { |
ac7936df | 1609 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1610 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
063715bf JB |
1611 | uint64_t gprs64[ppc_num_gprs]; |
1612 | uint32_t gprs32[ppc_num_gprs]; | |
1613 | double fprs[ppc_num_fprs]; | |
c11d79f2 | 1614 | struct ptxsprs sprs64; |
61c5da0b KB |
1615 | struct ptsprs sprs32; |
1616 | int i; | |
c11d79f2 | 1617 | |
8e2c28d4 | 1618 | if (debug_aix_thread) |
206d3d3c KB |
1619 | fprintf_unfiltered (gdb_stdlog, |
1620 | "store_regs_kernel_thread tid=%lx regno=%d\n", | |
1621 | (long) tid, regno); | |
c11d79f2 | 1622 | |
0fe7bf7b | 1623 | /* General-purpose registers. */ |
daf6dc85 JB |
1624 | if (regno == -1 |
1625 | || (tdep->ppc_gp0_regnum <= regno | |
1626 | && regno < tdep->ppc_gp0_regnum + ppc_num_fprs)) | |
c11d79f2 | 1627 | { |
c11d79f2 | 1628 | if (arch64) |
61c5da0b | 1629 | { |
cbe92db4 KB |
1630 | /* Pre-fetch: some regs may not be in the cache. */ |
1631 | ptrace64aix (PTT_READ_GPRS, tid, (unsigned long) gprs64, 0, NULL); | |
647478e0 | 1632 | fill_gprs64 (regcache, gprs64); |
61c5da0b KB |
1633 | ptrace64aix (PTT_WRITE_GPRS, tid, (unsigned long) gprs64, 0, NULL); |
1634 | } | |
c11d79f2 | 1635 | else |
61c5da0b | 1636 | { |
cbe92db4 | 1637 | /* Pre-fetch: some regs may not be in the cache. */ |
3b631e37 | 1638 | ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL); |
647478e0 | 1639 | fill_gprs32 (regcache, gprs32); |
3b631e37 | 1640 | ptrace32 (PTT_WRITE_GPRS, tid, (uintptr_t) gprs32, 0, NULL); |
61c5da0b | 1641 | } |
c11d79f2 KB |
1642 | } |
1643 | ||
0fe7bf7b | 1644 | /* Floating-point registers. */ |
c11d79f2 | 1645 | |
c7f30c7a | 1646 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1647 | && (regno == -1 |
1648 | || (regno >= tdep->ppc_fp0_regnum | |
1649 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 | 1650 | { |
cbe92db4 | 1651 | /* Pre-fetch: some regs may not be in the cache. */ |
3b631e37 | 1652 | ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL); |
647478e0 | 1653 | fill_fprs (regcache, fprs); |
3b631e37 | 1654 | ptrace32 (PTT_WRITE_FPRS, tid, (uintptr_t) fprs, 0, NULL); |
c11d79f2 KB |
1655 | } |
1656 | ||
0fe7bf7b | 1657 | /* Special-purpose registers. */ |
c11d79f2 | 1658 | |
9970f04b | 1659 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1660 | { |
1661 | if (arch64) | |
1662 | { | |
cbe92db4 | 1663 | /* Pre-fetch: some registers won't be in the cache. */ |
0fe7bf7b MS |
1664 | ptrace64aix (PTT_READ_SPRS, tid, |
1665 | (unsigned long) &sprs64, 0, NULL); | |
647478e0 UW |
1666 | fill_sprs64 (regcache, &sprs64.pt_iar, &sprs64.pt_msr, |
1667 | &sprs64.pt_cr, &sprs64.pt_lr, &sprs64.pt_ctr, | |
1668 | &sprs64.pt_xer, &sprs64.pt_fpscr); | |
0fe7bf7b MS |
1669 | ptrace64aix (PTT_WRITE_SPRS, tid, |
1670 | (unsigned long) &sprs64, 0, NULL); | |
c11d79f2 KB |
1671 | } |
1672 | else | |
1673 | { | |
0d16ee5d UW |
1674 | /* The contents of "struct ptspr" were declared as "unsigned |
1675 | long" up to AIX 5.2, but are "unsigned int" since 5.3. | |
1676 | Use temporaries to work around this problem. Also, add an | |
1677 | assert here to make sure we fail if the system header files | |
1678 | use "unsigned long", and the size of that type is not what | |
1679 | the headers expect. */ | |
1680 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1681 | tmp_fpscr; | |
1682 | ||
1683 | gdb_assert (sizeof (sprs32.pt_iar) == 4); | |
1684 | ||
cbe92db4 | 1685 | /* Pre-fetch: some registers won't be in the cache. */ |
3b631e37 | 1686 | ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL); |
c11d79f2 | 1687 | |
647478e0 UW |
1688 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, |
1689 | &tmp_ctr, &tmp_xer, &tmp_fpscr); | |
0d16ee5d UW |
1690 | |
1691 | sprs32.pt_iar = tmp_iar; | |
1692 | sprs32.pt_msr = tmp_msr; | |
1693 | sprs32.pt_cr = tmp_cr; | |
1694 | sprs32.pt_lr = tmp_lr; | |
1695 | sprs32.pt_ctr = tmp_ctr; | |
1696 | sprs32.pt_xer = tmp_xer; | |
1697 | sprs32.pt_fpscr = tmp_fpscr; | |
c11d79f2 | 1698 | |
f1a91342 | 1699 | if (tdep->ppc_mq_regnum >= 0) |
672c9795 YQ |
1700 | if (REG_VALID == regcache_register_status (regcache, |
1701 | tdep->ppc_mq_regnum)) | |
647478e0 | 1702 | regcache_raw_collect (regcache, tdep->ppc_mq_regnum, |
822c9732 | 1703 | &sprs32.pt_mq); |
c11d79f2 | 1704 | |
3b631e37 | 1705 | ptrace32 (PTT_WRITE_SPRS, tid, (uintptr_t) &sprs32, 0, NULL); |
c11d79f2 KB |
1706 | } |
1707 | } | |
1708 | } | |
1709 | ||
0fe7bf7b | 1710 | /* Store gdb's current view of the register set into the |
edb5fb00 | 1711 | thread/process connected to REGCACHE. */ |
c11d79f2 | 1712 | |
f6ac5f3d PA |
1713 | void |
1714 | aix_thread_target::store_registers (struct regcache *regcache, int regno) | |
c11d79f2 KB |
1715 | { |
1716 | struct thread_info *thread; | |
1717 | pthdb_tid_t tid; | |
f6ac5f3d | 1718 | struct target_ops *beneath = find_target_beneath (this); |
c11d79f2 | 1719 | |
edb5fb00 | 1720 | if (!PD_TID (regcache_get_ptid (regcache))) |
f6ac5f3d | 1721 | beneath->store_registers (regcache, regno); |
c11d79f2 KB |
1722 | else |
1723 | { | |
edb5fb00 | 1724 | thread = find_thread_ptid (regcache_get_ptid (regcache)); |
7aabaf9d SM |
1725 | aix_thread_info *priv = get_aix_thread_info (thread); |
1726 | tid = priv->tid; | |
c11d79f2 KB |
1727 | |
1728 | if (tid == PTHDB_INVALID_TID) | |
7aabaf9d | 1729 | store_regs_user_thread (regcache, priv->pdtid); |
c11d79f2 | 1730 | else |
56be3814 | 1731 | store_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1732 | } |
1733 | } | |
1734 | ||
edcc890f | 1735 | /* Implement the to_xfer_partial target_ops method. */ |
037a727e | 1736 | |
f6ac5f3d PA |
1737 | enum target_xfer_status |
1738 | aix_thread_target::xfer_partial (enum target_object object, | |
1739 | const char *annex, gdb_byte *readbuf, | |
1740 | const gdb_byte *writebuf, | |
1741 | ULONGEST offset, ULONGEST len, | |
1742 | ULONGEST *xfered_len) | |
c11d79f2 | 1743 | { |
2989a365 | 1744 | scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid); |
f6ac5f3d | 1745 | struct target_ops *beneath = find_target_beneath (this); |
14fa3751 | 1746 | |
dfd4cc63 | 1747 | inferior_ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); |
f6ac5f3d PA |
1748 | return beneath->xfer_partial (object, annex, readbuf, |
1749 | writebuf, offset, len, xfered_len); | |
c11d79f2 KB |
1750 | } |
1751 | ||
0fe7bf7b | 1752 | /* Clean up after the inferior exits. */ |
c11d79f2 | 1753 | |
f6ac5f3d PA |
1754 | void |
1755 | aix_thread_target::mourn_inferior () | |
c11d79f2 | 1756 | { |
f6ac5f3d | 1757 | struct target_ops *beneath = find_target_beneath (this); |
d30acaa7 | 1758 | |
c11d79f2 | 1759 | pd_deactivate (); |
f6ac5f3d | 1760 | beneath->mourn_inferior (); |
c11d79f2 KB |
1761 | } |
1762 | ||
0fe7bf7b | 1763 | /* Return whether thread PID is still valid. */ |
c11d79f2 | 1764 | |
57810aa7 | 1765 | bool |
f6ac5f3d | 1766 | aix_thread_target::thread_alive (ptid_t ptid) |
c11d79f2 | 1767 | { |
f6ac5f3d | 1768 | struct target_ops *beneath = find_target_beneath (this); |
d30acaa7 | 1769 | |
c11d79f2 | 1770 | if (!PD_TID (ptid)) |
f6ac5f3d | 1771 | return beneath->thread_alive (ptid); |
c11d79f2 | 1772 | |
0fe7bf7b MS |
1773 | /* We update the thread list every time the child stops, so all |
1774 | valid threads should be in the thread list. */ | |
c11d79f2 KB |
1775 | return in_thread_list (ptid); |
1776 | } | |
1777 | ||
0fe7bf7b MS |
1778 | /* Return a printable representation of composite PID for use in |
1779 | "info threads" output. */ | |
c11d79f2 | 1780 | |
f6ac5f3d PA |
1781 | const char * |
1782 | aix_thread_target::pid_to_str (ptid_t ptid) | |
c11d79f2 KB |
1783 | { |
1784 | static char *ret = NULL; | |
f6ac5f3d | 1785 | struct target_ops *beneath = find_target_beneath (this); |
c11d79f2 KB |
1786 | |
1787 | if (!PD_TID (ptid)) | |
f6ac5f3d | 1788 | return beneath->pid_to_str (ptid); |
c11d79f2 KB |
1789 | |
1790 | /* Free previous return value; a new one will be allocated by | |
b435e160 | 1791 | xstrprintf(). */ |
c11d79f2 KB |
1792 | xfree (ret); |
1793 | ||
edefbb7c | 1794 | ret = xstrprintf (_("Thread %ld"), ptid_get_tid (ptid)); |
c11d79f2 KB |
1795 | return ret; |
1796 | } | |
1797 | ||
0fe7bf7b MS |
1798 | /* Return a printable representation of extra information about |
1799 | THREAD, for use in "info threads" output. */ | |
c11d79f2 | 1800 | |
f6ac5f3d PA |
1801 | const char * |
1802 | aix_thread_target::extra_thread_info (struct thread_info *thread) | |
c11d79f2 | 1803 | { |
c11d79f2 KB |
1804 | int status; |
1805 | pthdb_pthread_t pdtid; | |
1806 | pthdb_tid_t tid; | |
1807 | pthdb_state_t state; | |
1808 | pthdb_suspendstate_t suspendstate; | |
1809 | pthdb_detachstate_t detachstate; | |
1810 | int cancelpend; | |
c11d79f2 KB |
1811 | static char *ret = NULL; |
1812 | ||
1813 | if (!PD_TID (thread->ptid)) | |
1814 | return NULL; | |
1815 | ||
d7e74731 | 1816 | string_file buf; |
7aabaf9d | 1817 | aix_thread_info *priv = get_aix_thread_info (thread); |
c11d79f2 | 1818 | |
7aabaf9d SM |
1819 | pdtid = priv->pdtid; |
1820 | tid = priv->tid; | |
c11d79f2 KB |
1821 | |
1822 | if (tid != PTHDB_INVALID_TID) | |
edefbb7c | 1823 | /* i18n: Like "thread-identifier %d, [state] running, suspended" */ |
d7e74731 | 1824 | buf.printf (_("tid %d"), (int)tid); |
c11d79f2 KB |
1825 | |
1826 | status = pthdb_pthread_state (pd_session, pdtid, &state); | |
1827 | if (status != PTHDB_SUCCESS) | |
1828 | state = PST_NOTSUP; | |
d7e74731 | 1829 | buf.printf (", %s", state2str (state)); |
c11d79f2 | 1830 | |
0fe7bf7b MS |
1831 | status = pthdb_pthread_suspendstate (pd_session, pdtid, |
1832 | &suspendstate); | |
c11d79f2 | 1833 | if (status == PTHDB_SUCCESS && suspendstate == PSS_SUSPENDED) |
edefbb7c | 1834 | /* i18n: Like "Thread-Id %d, [state] running, suspended" */ |
d7e74731 | 1835 | buf.printf (_(", suspended")); |
c11d79f2 | 1836 | |
0fe7bf7b MS |
1837 | status = pthdb_pthread_detachstate (pd_session, pdtid, |
1838 | &detachstate); | |
c11d79f2 | 1839 | if (status == PTHDB_SUCCESS && detachstate == PDS_DETACHED) |
edefbb7c | 1840 | /* i18n: Like "Thread-Id %d, [state] running, detached" */ |
d7e74731 | 1841 | buf.printf (_(", detached")); |
c11d79f2 KB |
1842 | |
1843 | pthdb_pthread_cancelpend (pd_session, pdtid, &cancelpend); | |
1844 | if (status == PTHDB_SUCCESS && cancelpend) | |
edefbb7c | 1845 | /* i18n: Like "Thread-Id %d, [state] running, cancel pending" */ |
d7e74731 | 1846 | buf.printf (_(", cancel pending")); |
c11d79f2 | 1847 | |
d7e74731 | 1848 | buf.write ("", 1); |
c11d79f2 KB |
1849 | |
1850 | xfree (ret); /* Free old buffer. */ | |
1851 | ||
d7e74731 | 1852 | ret = xstrdup (buf.c_str ()); |
c11d79f2 KB |
1853 | |
1854 | return ret; | |
1855 | } | |
1856 | ||
f6ac5f3d PA |
1857 | ptid_t |
1858 | aix_thread_target::get_ada_task_ptid (long lwp, long thread) | |
c7660128 JB |
1859 | { |
1860 | return ptid_build (ptid_get_pid (inferior_ptid), 0, thread); | |
1861 | } | |
1862 | ||
c11d79f2 KB |
1863 | |
1864 | /* Module startup initialization function, automagically called by | |
0fe7bf7b | 1865 | init.c. */ |
c11d79f2 KB |
1866 | |
1867 | void | |
1868 | _initialize_aix_thread (void) | |
1869 | { | |
0fe7bf7b | 1870 | /* Notice when object files get loaded and unloaded. */ |
76727919 | 1871 | gdb::observers::new_objfile.attach (new_objfile); |
8e2c28d4 | 1872 | |
b3ccfe11 TT |
1873 | /* Add ourselves to inferior_created event chain. |
1874 | This is needed to enable the thread target on "attach". */ | |
76727919 | 1875 | gdb::observers::inferior_created.attach (aix_thread_inferior_created); |
b3ccfe11 | 1876 | |
577b7047 | 1877 | add_setshow_boolean_cmd ("aix-thread", class_maintenance, &debug_aix_thread, |
0963b4bd MS |
1878 | _("Set debugging of AIX thread module."), |
1879 | _("Show debugging of AIX thread module."), | |
1880 | _("Enables debugging output (used to debug GDB)."), | |
1881 | NULL, NULL, | |
1882 | /* FIXME: i18n: Debugging of AIX thread | |
1883 | module is \"%d\". */ | |
1884 | &setdebuglist, &showdebuglist); | |
c11d79f2 | 1885 | } |