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1 | /* Low level interface for debugging AIX 4.3+ pthreads. |
2 | ||
42a4f53d | 3 | Copyright (C) 1999-2019 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" | |
c11d79f2 | 43 | |
d55e5aa6 | 44 | /* Standard C includes. */ |
c11d79f2 | 45 | #include <procinfo.h> |
c11d79f2 KB |
46 | #include <sched.h> |
47 | #include <sys/pthdebug.h> | |
d55e5aa6 TT |
48 | #include <sys/ptrace.h> |
49 | #include <sys/reg.h> | |
50 | #include <sys/types.h> | |
51 | ||
52 | /* Local non-gdb includes. */ | |
53 | #include "gdbcmd.h" | |
54 | #include "gdbthread.h" | |
55 | #include "inferior.h" | |
56 | #include "objfiles.h" | |
57 | #include "observable.h" | |
58 | #include "ppc-tdep.h" | |
59 | #include "regcache.h" | |
60 | #include "target.h" | |
c11d79f2 | 61 | |
d645e32e | 62 | #if !HAVE_DECL_GETTHRDS |
eff44fea | 63 | extern int getthrds (pid_t, struct thrdsinfo64 *, int, tid_t *, int); |
d645e32e JB |
64 | #endif |
65 | ||
0fe7bf7b | 66 | /* Whether to emit debugging output. */ |
8e2c28d4 | 67 | static int debug_aix_thread; |
c11d79f2 | 68 | |
0fe7bf7b | 69 | /* In AIX 5.1, functions use pthdb_tid_t instead of tid_t. */ |
c11d79f2 KB |
70 | #ifndef PTHDB_VERSION_3 |
71 | #define pthdb_tid_t tid_t | |
72 | #endif | |
73 | ||
0fe7bf7b | 74 | /* Return whether to treat PID as a debuggable thread id. */ |
c11d79f2 | 75 | |
cc6bcb54 | 76 | #define PD_TID(ptid) (pd_active && ptid.tid () != 0) |
c11d79f2 | 77 | |
c11d79f2 | 78 | /* pthdb_user_t value that we pass to pthdb functions. 0 causes |
0fe7bf7b | 79 | PTHDB_BAD_USER errors, so use 1. */ |
c11d79f2 KB |
80 | |
81 | #define PD_USER 1 | |
82 | ||
0fe7bf7b | 83 | /* Success and failure values returned by pthdb callbacks. */ |
c11d79f2 KB |
84 | |
85 | #define PDC_SUCCESS PTHDB_SUCCESS | |
86 | #define PDC_FAILURE PTHDB_CALLBACK | |
87 | ||
0fe7bf7b | 88 | /* Private data attached to each element in GDB's thread list. */ |
c11d79f2 | 89 | |
7aabaf9d SM |
90 | struct aix_thread_info : public private_thread_info |
91 | { | |
0fe7bf7b | 92 | pthdb_pthread_t pdtid; /* thread's libpthdebug id */ |
c11d79f2 KB |
93 | pthdb_tid_t tid; /* kernel thread id */ |
94 | }; | |
95 | ||
7aabaf9d SM |
96 | /* Return the aix_thread_info attached to THREAD. */ |
97 | ||
98 | static aix_thread_info * | |
99 | get_aix_thread_info (thread_info *thread) | |
100 | { | |
101 | return static_cast<aix_thread_info *> (thread->priv.get ()); | |
102 | } | |
103 | ||
0fe7bf7b | 104 | /* Information about a thread of which libpthdebug is aware. */ |
c11d79f2 KB |
105 | |
106 | struct pd_thread { | |
107 | pthdb_pthread_t pdtid; | |
108 | pthread_t pthid; | |
109 | pthdb_tid_t tid; | |
110 | }; | |
111 | ||
0fe7bf7b | 112 | /* This module's target-specific operations, active while pd_able is true. */ |
c11d79f2 | 113 | |
d9f719f1 PA |
114 | static const target_info aix_thread_target_info = { |
115 | "aix-threads", | |
116 | N_("AIX pthread support"), | |
117 | N_("AIX pthread support") | |
118 | }; | |
119 | ||
f6ac5f3d PA |
120 | class aix_thread_target final : public target_ops |
121 | { | |
122 | public: | |
d9f719f1 PA |
123 | const target_info &info () const override |
124 | { return aix_thread_target_info; } | |
f6ac5f3d | 125 | |
66b4deae PA |
126 | strata stratum () const override { return thread_stratum; } |
127 | ||
f6ac5f3d PA |
128 | void detach (inferior *, int) override; |
129 | void resume (ptid_t, int, enum gdb_signal) override; | |
130 | ptid_t wait (ptid_t, struct target_waitstatus *, int) override; | |
131 | ||
132 | void fetch_registers (struct regcache *, int) override; | |
133 | void store_registers (struct regcache *, int) override; | |
134 | ||
135 | enum target_xfer_status xfer_partial (enum target_object object, | |
136 | const char *annex, | |
137 | gdb_byte *readbuf, | |
138 | const gdb_byte *writebuf, | |
139 | ULONGEST offset, ULONGEST len, | |
140 | ULONGEST *xfered_len) override; | |
141 | ||
142 | void mourn_inferior () override; | |
143 | ||
57810aa7 | 144 | bool thread_alive (ptid_t ptid) override; |
f6ac5f3d | 145 | |
a068643d | 146 | std::string pid_to_str (ptid_t) override; |
f6ac5f3d PA |
147 | |
148 | const char *extra_thread_info (struct thread_info *) override; | |
149 | ||
150 | ptid_t get_ada_task_ptid (long lwp, long thread) override; | |
151 | }; | |
152 | ||
153 | static aix_thread_target aix_thread_ops; | |
c11d79f2 | 154 | |
0fe7bf7b MS |
155 | /* Address of the function that libpthread will call when libpthdebug |
156 | is ready to be initialized. */ | |
c11d79f2 KB |
157 | |
158 | static CORE_ADDR pd_brk_addr; | |
159 | ||
0fe7bf7b | 160 | /* Whether the current application is debuggable by pthdb. */ |
c11d79f2 KB |
161 | |
162 | static int pd_able = 0; | |
163 | ||
0fe7bf7b | 164 | /* Whether a threaded application is being debugged. */ |
c11d79f2 KB |
165 | |
166 | static int pd_active = 0; | |
167 | ||
0fe7bf7b MS |
168 | /* Whether the current architecture is 64-bit. |
169 | Only valid when pd_able is true. */ | |
c11d79f2 KB |
170 | |
171 | static int arch64; | |
172 | ||
0fe7bf7b | 173 | /* Forward declarations for pthdb callbacks. */ |
c11d79f2 KB |
174 | |
175 | static int pdc_symbol_addrs (pthdb_user_t, pthdb_symbol_t *, int); | |
176 | static int pdc_read_data (pthdb_user_t, void *, pthdb_addr_t, size_t); | |
177 | static int pdc_write_data (pthdb_user_t, void *, pthdb_addr_t, size_t); | |
178 | static int pdc_read_regs (pthdb_user_t user, pthdb_tid_t tid, | |
0fe7bf7b MS |
179 | unsigned long long flags, |
180 | pthdb_context_t *context); | |
c11d79f2 | 181 | static int pdc_write_regs (pthdb_user_t user, pthdb_tid_t tid, |
0fe7bf7b MS |
182 | unsigned long long flags, |
183 | pthdb_context_t *context); | |
c11d79f2 KB |
184 | static int pdc_alloc (pthdb_user_t, size_t, void **); |
185 | static int pdc_realloc (pthdb_user_t, void *, size_t, void **); | |
186 | static int pdc_dealloc (pthdb_user_t, void *); | |
187 | ||
0fe7bf7b | 188 | /* pthdb callbacks. */ |
c11d79f2 KB |
189 | |
190 | static pthdb_callbacks_t pd_callbacks = { | |
191 | pdc_symbol_addrs, | |
192 | pdc_read_data, | |
193 | pdc_write_data, | |
194 | pdc_read_regs, | |
195 | pdc_write_regs, | |
196 | pdc_alloc, | |
197 | pdc_realloc, | |
198 | pdc_dealloc, | |
199 | NULL | |
200 | }; | |
201 | ||
0fe7bf7b | 202 | /* Current pthdb session. */ |
c11d79f2 KB |
203 | |
204 | static pthdb_session_t pd_session; | |
205 | ||
0fe7bf7b MS |
206 | /* Return a printable representation of pthdebug function return |
207 | STATUS. */ | |
c11d79f2 | 208 | |
0a31ccfb | 209 | static const char * |
c11d79f2 KB |
210 | pd_status2str (int status) |
211 | { | |
212 | switch (status) | |
213 | { | |
214 | case PTHDB_SUCCESS: return "SUCCESS"; | |
215 | case PTHDB_NOSYS: return "NOSYS"; | |
216 | case PTHDB_NOTSUP: return "NOTSUP"; | |
217 | case PTHDB_BAD_VERSION: return "BAD_VERSION"; | |
218 | case PTHDB_BAD_USER: return "BAD_USER"; | |
219 | case PTHDB_BAD_SESSION: return "BAD_SESSION"; | |
220 | case PTHDB_BAD_MODE: return "BAD_MODE"; | |
221 | case PTHDB_BAD_FLAGS: return "BAD_FLAGS"; | |
222 | case PTHDB_BAD_CALLBACK: return "BAD_CALLBACK"; | |
223 | case PTHDB_BAD_POINTER: return "BAD_POINTER"; | |
224 | case PTHDB_BAD_CMD: return "BAD_CMD"; | |
225 | case PTHDB_BAD_PTHREAD: return "BAD_PTHREAD"; | |
226 | case PTHDB_BAD_ATTR: return "BAD_ATTR"; | |
227 | case PTHDB_BAD_MUTEX: return "BAD_MUTEX"; | |
228 | case PTHDB_BAD_MUTEXATTR: return "BAD_MUTEXATTR"; | |
229 | case PTHDB_BAD_COND: return "BAD_COND"; | |
230 | case PTHDB_BAD_CONDATTR: return "BAD_CONDATTR"; | |
231 | case PTHDB_BAD_RWLOCK: return "BAD_RWLOCK"; | |
232 | case PTHDB_BAD_RWLOCKATTR: return "BAD_RWLOCKATTR"; | |
233 | case PTHDB_BAD_KEY: return "BAD_KEY"; | |
234 | case PTHDB_BAD_PTID: return "BAD_PTID"; | |
235 | case PTHDB_BAD_TID: return "BAD_TID"; | |
236 | case PTHDB_CALLBACK: return "CALLBACK"; | |
237 | case PTHDB_CONTEXT: return "CONTEXT"; | |
238 | case PTHDB_HELD: return "HELD"; | |
239 | case PTHDB_NOT_HELD: return "NOT_HELD"; | |
240 | case PTHDB_MEMORY: return "MEMORY"; | |
241 | case PTHDB_NOT_PTHREADED: return "NOT_PTHREADED"; | |
242 | case PTHDB_SYMBOL: return "SYMBOL"; | |
243 | case PTHDB_NOT_AVAIL: return "NOT_AVAIL"; | |
244 | case PTHDB_INTERNAL: return "INTERNAL"; | |
245 | default: return "UNKNOWN"; | |
246 | } | |
247 | } | |
248 | ||
0fe7bf7b MS |
249 | /* A call to ptrace(REQ, ID, ...) just returned RET. Check for |
250 | exceptional conditions and either return nonlocally or else return | |
251 | 1 for success and 0 for failure. */ | |
c11d79f2 KB |
252 | |
253 | static int | |
254 | ptrace_check (int req, int id, int ret) | |
255 | { | |
256 | if (ret == 0 && !errno) | |
257 | return 1; | |
258 | ||
0fe7bf7b MS |
259 | /* According to ptrace(2), ptrace may fail with EPERM if "the |
260 | Identifier parameter corresponds to a kernel thread which is | |
261 | stopped in kernel mode and whose computational state cannot be | |
262 | read or written." This happens quite often with register reads. */ | |
c11d79f2 KB |
263 | |
264 | switch (req) | |
265 | { | |
266 | case PTT_READ_GPRS: | |
267 | case PTT_READ_FPRS: | |
268 | case PTT_READ_SPRS: | |
269 | if (ret == -1 && errno == EPERM) | |
42cc437f KB |
270 | { |
271 | if (debug_aix_thread) | |
0fe7bf7b | 272 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 273 | "ptrace (%d, %d) = %d (errno = %d)\n", |
42cc437f KB |
274 | req, id, ret, errno); |
275 | return ret == -1 ? 0 : 1; | |
276 | } | |
c11d79f2 KB |
277 | break; |
278 | } | |
edefbb7c | 279 | error (_("aix-thread: ptrace (%d, %d) returned %d (errno = %d %s)"), |
be006b8b | 280 | req, id, ret, errno, safe_strerror (errno)); |
0fe7bf7b | 281 | return 0; /* Not reached. */ |
c11d79f2 KB |
282 | } |
283 | ||
fecf803e UW |
284 | /* Call ptracex (REQ, ID, ADDR, DATA, BUF) or |
285 | ptrace64 (REQ, ID, ADDR, DATA, BUF) if HAVE_PTRACE64. | |
286 | Return success. */ | |
287 | ||
288 | #ifdef HAVE_PTRACE64 | |
289 | # define ptracex(request, pid, addr, data, buf) \ | |
290 | ptrace64 (request, pid, addr, data, buf) | |
291 | #endif | |
c11d79f2 KB |
292 | |
293 | static int | |
294 | ptrace64aix (int req, int id, long long addr, int data, int *buf) | |
295 | { | |
296 | errno = 0; | |
297 | return ptrace_check (req, id, ptracex (req, id, addr, data, buf)); | |
298 | } | |
299 | ||
fecf803e UW |
300 | /* Call ptrace (REQ, ID, ADDR, DATA, BUF) or |
301 | ptrace64 (REQ, ID, ADDR, DATA, BUF) if HAVE_PTRACE64. | |
302 | Return success. */ | |
303 | ||
304 | #ifdef HAVE_PTRACE64 | |
305 | # define ptrace(request, pid, addr, data, buf) \ | |
306 | ptrace64 (request, pid, addr, data, buf) | |
307 | # define addr_ptr long long | |
308 | #else | |
309 | # define addr_ptr int * | |
310 | #endif | |
c11d79f2 KB |
311 | |
312 | static int | |
fecf803e | 313 | ptrace32 (int req, int id, addr_ptr addr, int data, int *buf) |
c11d79f2 KB |
314 | { |
315 | errno = 0; | |
0fe7bf7b | 316 | return ptrace_check (req, id, |
26f0edc1 | 317 | ptrace (req, id, addr, data, buf)); |
c11d79f2 KB |
318 | } |
319 | ||
0fe7bf7b MS |
320 | /* If *PIDP is a composite process/thread id, convert it to a |
321 | process id. */ | |
c11d79f2 KB |
322 | |
323 | static void | |
324 | pid_to_prc (ptid_t *ptidp) | |
325 | { | |
326 | ptid_t ptid; | |
327 | ||
328 | ptid = *ptidp; | |
329 | if (PD_TID (ptid)) | |
e99b03dc | 330 | *ptidp = ptid_t (ptid.pid ()); |
c11d79f2 KB |
331 | } |
332 | ||
0fe7bf7b MS |
333 | /* pthdb callback: for <i> from 0 to COUNT, set SYMBOLS[<i>].addr to |
334 | the address of SYMBOLS[<i>].name. */ | |
c11d79f2 KB |
335 | |
336 | static int | |
337 | pdc_symbol_addrs (pthdb_user_t user, pthdb_symbol_t *symbols, int count) | |
338 | { | |
3b7344d5 | 339 | struct bound_minimal_symbol ms; |
c11d79f2 KB |
340 | int i; |
341 | char *name; | |
342 | ||
8e2c28d4 KB |
343 | if (debug_aix_thread) |
344 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 345 | "pdc_symbol_addrs (user = %ld, symbols = 0x%lx, count = %d)\n", |
8e2c28d4 | 346 | user, (long) symbols, count); |
c11d79f2 KB |
347 | |
348 | for (i = 0; i < count; i++) | |
349 | { | |
350 | name = symbols[i].name; | |
8e2c28d4 | 351 | if (debug_aix_thread) |
0fe7bf7b | 352 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 353 | " symbols[%d].name = \"%s\"\n", i, name); |
c11d79f2 KB |
354 | |
355 | if (!*name) | |
356 | symbols[i].addr = 0; | |
357 | else | |
358 | { | |
3b7344d5 TT |
359 | ms = lookup_minimal_symbol (name, NULL, NULL); |
360 | if (ms.minsym == NULL) | |
c11d79f2 | 361 | { |
8e2c28d4 | 362 | if (debug_aix_thread) |
27bae383 | 363 | fprintf_unfiltered (gdb_stdlog, " returning PDC_FAILURE\n"); |
c11d79f2 KB |
364 | return PDC_FAILURE; |
365 | } | |
77e371c0 | 366 | symbols[i].addr = BMSYMBOL_VALUE_ADDRESS (ms); |
c11d79f2 | 367 | } |
8e2c28d4 | 368 | if (debug_aix_thread) |
27bae383 | 369 | fprintf_unfiltered (gdb_stdlog, " symbols[%d].addr = %s\n", |
bb599908 | 370 | i, hex_string (symbols[i].addr)); |
c11d79f2 | 371 | } |
8e2c28d4 | 372 | if (debug_aix_thread) |
27bae383 | 373 | fprintf_unfiltered (gdb_stdlog, " returning PDC_SUCCESS\n"); |
c11d79f2 KB |
374 | return PDC_SUCCESS; |
375 | } | |
376 | ||
0fe7bf7b MS |
377 | /* Read registers call back function should be able to read the |
378 | context information of a debuggee kernel thread from an active | |
379 | process or from a core file. The information should be formatted | |
380 | in context64 form for both 32-bit and 64-bit process. | |
381 | If successful return 0, else non-zero is returned. */ | |
382 | ||
c11d79f2 KB |
383 | static int |
384 | pdc_read_regs (pthdb_user_t user, | |
385 | pthdb_tid_t tid, | |
386 | unsigned long long flags, | |
387 | pthdb_context_t *context) | |
388 | { | |
0fe7bf7b MS |
389 | /* This function doesn't appear to be used, so we could probably |
390 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
391 | complain and several thread debug functions will fail. In case | |
392 | this is needed, I have implemented what I think it should do, | |
393 | however this code is untested. */ | |
394 | ||
063715bf JB |
395 | uint64_t gprs64[ppc_num_gprs]; |
396 | uint32_t gprs32[ppc_num_gprs]; | |
397 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
398 | struct ptxsprs sprs64; |
399 | struct ptsprs sprs32; | |
400 | ||
8e2c28d4 | 401 | if (debug_aix_thread) |
27bae383 | 402 | fprintf_unfiltered (gdb_stdlog, "pdc_read_regs tid=%d flags=%s\n", |
bb599908 | 403 | (int) tid, hex_string (flags)); |
c11d79f2 | 404 | |
0fe7bf7b | 405 | /* General-purpose registers. */ |
c11d79f2 KB |
406 | if (flags & PTHDB_FLAG_GPRS) |
407 | { | |
408 | if (arch64) | |
409 | { | |
0fe7bf7b MS |
410 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
411 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 KB |
412 | memset (gprs64, 0, sizeof (gprs64)); |
413 | memcpy (context->gpr, gprs64, sizeof(gprs64)); | |
414 | } | |
415 | else | |
416 | { | |
3b631e37 | 417 | if (!ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL)) |
c11d79f2 KB |
418 | memset (gprs32, 0, sizeof (gprs32)); |
419 | memcpy (context->gpr, gprs32, sizeof(gprs32)); | |
420 | } | |
421 | } | |
422 | ||
0fe7bf7b | 423 | /* Floating-point registers. */ |
c11d79f2 KB |
424 | if (flags & PTHDB_FLAG_FPRS) |
425 | { | |
3b631e37 | 426 | if (!ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL)) |
c11d79f2 | 427 | memset (fprs, 0, sizeof (fprs)); |
46bba1ef | 428 | memcpy (context->fpr, fprs, sizeof(fprs)); |
c11d79f2 KB |
429 | } |
430 | ||
0fe7bf7b | 431 | /* Special-purpose registers. */ |
c11d79f2 KB |
432 | if (flags & PTHDB_FLAG_SPRS) |
433 | { | |
434 | if (arch64) | |
435 | { | |
0fe7bf7b MS |
436 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
437 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 KB |
438 | memset (&sprs64, 0, sizeof (sprs64)); |
439 | memcpy (&context->msr, &sprs64, sizeof(sprs64)); | |
440 | } | |
441 | else | |
442 | { | |
3b631e37 | 443 | if (!ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL)) |
c11d79f2 KB |
444 | memset (&sprs32, 0, sizeof (sprs32)); |
445 | memcpy (&context->msr, &sprs32, sizeof(sprs32)); | |
446 | } | |
447 | } | |
448 | return 0; | |
449 | } | |
450 | ||
0fe7bf7b | 451 | /* Write register function should be able to write requested context |
0963b4bd | 452 | information to specified debuggee's kernel thread id. |
0fe7bf7b MS |
453 | If successful return 0, else non-zero is returned. */ |
454 | ||
c11d79f2 KB |
455 | static int |
456 | pdc_write_regs (pthdb_user_t user, | |
457 | pthdb_tid_t tid, | |
458 | unsigned long long flags, | |
459 | pthdb_context_t *context) | |
460 | { | |
0fe7bf7b MS |
461 | /* This function doesn't appear to be used, so we could probably |
462 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
463 | complain and several thread debug functions will fail. In case | |
464 | this is needed, I have implemented what I think it should do, | |
465 | however this code is untested. */ | |
c11d79f2 | 466 | |
8e2c28d4 | 467 | if (debug_aix_thread) |
27bae383 | 468 | fprintf_unfiltered (gdb_stdlog, "pdc_write_regs tid=%d flags=%s\n", |
bb599908 | 469 | (int) tid, hex_string (flags)); |
c11d79f2 | 470 | |
0fe7bf7b | 471 | /* General-purpose registers. */ |
c11d79f2 KB |
472 | if (flags & PTHDB_FLAG_GPRS) |
473 | { | |
474 | if (arch64) | |
0fe7bf7b | 475 | ptrace64aix (PTT_WRITE_GPRS, tid, |
206d3d3c | 476 | (unsigned long) context->gpr, 0, NULL); |
c11d79f2 | 477 | else |
3b631e37 | 478 | ptrace32 (PTT_WRITE_GPRS, tid, (uintptr_t) context->gpr, 0, NULL); |
c11d79f2 KB |
479 | } |
480 | ||
0fe7bf7b | 481 | /* Floating-point registers. */ |
c11d79f2 KB |
482 | if (flags & PTHDB_FLAG_FPRS) |
483 | { | |
3b631e37 | 484 | ptrace32 (PTT_WRITE_FPRS, tid, (uintptr_t) context->fpr, 0, NULL); |
c11d79f2 KB |
485 | } |
486 | ||
0fe7bf7b | 487 | /* Special-purpose registers. */ |
c11d79f2 KB |
488 | if (flags & PTHDB_FLAG_SPRS) |
489 | { | |
490 | if (arch64) | |
491 | { | |
0fe7bf7b MS |
492 | ptrace64aix (PTT_WRITE_SPRS, tid, |
493 | (unsigned long) &context->msr, 0, NULL); | |
c11d79f2 KB |
494 | } |
495 | else | |
496 | { | |
3b631e37 | 497 | ptrace32 (PTT_WRITE_SPRS, tid, (uintptr_t) &context->msr, 0, NULL); |
c11d79f2 KB |
498 | } |
499 | } | |
500 | return 0; | |
501 | } | |
502 | ||
0fe7bf7b | 503 | /* pthdb callback: read LEN bytes from process ADDR into BUF. */ |
c11d79f2 KB |
504 | |
505 | static int | |
0fe7bf7b MS |
506 | pdc_read_data (pthdb_user_t user, void *buf, |
507 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
508 | { |
509 | int status, ret; | |
510 | ||
8e2c28d4 KB |
511 | if (debug_aix_thread) |
512 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 513 | "pdc_read_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 514 | user, (long) buf, hex_string (addr), len); |
c11d79f2 | 515 | |
71829b1a | 516 | status = target_read_memory (addr, (gdb_byte *) buf, len); |
c11d79f2 KB |
517 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; |
518 | ||
8e2c28d4 | 519 | if (debug_aix_thread) |
27bae383 | 520 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", |
0fe7bf7b | 521 | status, pd_status2str (ret)); |
c11d79f2 KB |
522 | return ret; |
523 | } | |
524 | ||
0fe7bf7b | 525 | /* pthdb callback: write LEN bytes from BUF to process ADDR. */ |
c11d79f2 KB |
526 | |
527 | static int | |
0fe7bf7b MS |
528 | pdc_write_data (pthdb_user_t user, void *buf, |
529 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
530 | { |
531 | int status, ret; | |
532 | ||
8e2c28d4 KB |
533 | if (debug_aix_thread) |
534 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 535 | "pdc_write_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 536 | user, (long) buf, hex_string (addr), len); |
c11d79f2 | 537 | |
71829b1a | 538 | status = target_write_memory (addr, (gdb_byte *) buf, len); |
c11d79f2 KB |
539 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; |
540 | ||
8e2c28d4 | 541 | if (debug_aix_thread) |
27bae383 | 542 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", status, |
8e2c28d4 | 543 | pd_status2str (ret)); |
c11d79f2 KB |
544 | return ret; |
545 | } | |
546 | ||
0fe7bf7b MS |
547 | /* pthdb callback: allocate a LEN-byte buffer and store a pointer to it |
548 | in BUFP. */ | |
c11d79f2 KB |
549 | |
550 | static int | |
551 | pdc_alloc (pthdb_user_t user, size_t len, void **bufp) | |
552 | { | |
8e2c28d4 KB |
553 | if (debug_aix_thread) |
554 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 555 | "pdc_alloc (user = %ld, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 556 | user, len, (long) bufp); |
c11d79f2 | 557 | *bufp = xmalloc (len); |
8e2c28d4 | 558 | if (debug_aix_thread) |
0fe7bf7b | 559 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 560 | " malloc returned 0x%lx\n", (long) *bufp); |
0fe7bf7b MS |
561 | |
562 | /* Note: xmalloc() can't return 0; therefore PDC_FAILURE will never | |
563 | be returned. */ | |
564 | ||
c11d79f2 KB |
565 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
566 | } | |
567 | ||
0fe7bf7b MS |
568 | /* pthdb callback: reallocate BUF, which was allocated by the alloc or |
569 | realloc callback, so that it contains LEN bytes, and store a | |
570 | pointer to the result in BUFP. */ | |
c11d79f2 KB |
571 | |
572 | static int | |
573 | pdc_realloc (pthdb_user_t user, void *buf, size_t len, void **bufp) | |
574 | { | |
8e2c28d4 KB |
575 | if (debug_aix_thread) |
576 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 577 | "pdc_realloc (user = %ld, buf = 0x%lx, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 578 | user, (long) buf, len, (long) bufp); |
be006b8b | 579 | *bufp = xrealloc (buf, len); |
8e2c28d4 | 580 | if (debug_aix_thread) |
0fe7bf7b | 581 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 582 | " realloc returned 0x%lx\n", (long) *bufp); |
c11d79f2 KB |
583 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
584 | } | |
585 | ||
0fe7bf7b MS |
586 | /* pthdb callback: free BUF, which was allocated by the alloc or |
587 | realloc callback. */ | |
c11d79f2 KB |
588 | |
589 | static int | |
590 | pdc_dealloc (pthdb_user_t user, void *buf) | |
591 | { | |
8e2c28d4 | 592 | if (debug_aix_thread) |
0fe7bf7b | 593 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 594 | "pdc_free (user = %ld, buf = 0x%lx)\n", user, |
8e2c28d4 | 595 | (long) buf); |
c11d79f2 KB |
596 | xfree (buf); |
597 | return PDC_SUCCESS; | |
598 | } | |
599 | ||
0fe7bf7b | 600 | /* Return a printable representation of pthread STATE. */ |
c11d79f2 KB |
601 | |
602 | static char * | |
603 | state2str (pthdb_state_t state) | |
604 | { | |
605 | switch (state) | |
606 | { | |
edefbb7c AC |
607 | case PST_IDLE: |
608 | /* i18n: Like "Thread-Id %d, [state] idle" */ | |
609 | return _("idle"); /* being created */ | |
610 | case PST_RUN: | |
611 | /* i18n: Like "Thread-Id %d, [state] running" */ | |
612 | return _("running"); /* running */ | |
613 | case PST_SLEEP: | |
614 | /* i18n: Like "Thread-Id %d, [state] sleeping" */ | |
615 | return _("sleeping"); /* awaiting an event */ | |
616 | case PST_READY: | |
617 | /* i18n: Like "Thread-Id %d, [state] ready" */ | |
618 | return _("ready"); /* runnable */ | |
619 | case PST_TERM: | |
620 | /* i18n: Like "Thread-Id %d, [state] finished" */ | |
621 | return _("finished"); /* awaiting a join/detach */ | |
622 | default: | |
623 | /* i18n: Like "Thread-Id %d, [state] unknown" */ | |
624 | return _("unknown"); | |
c11d79f2 KB |
625 | } |
626 | } | |
627 | ||
0fe7bf7b | 628 | /* qsort() comparison function for sorting pd_thread structs by pthid. */ |
c11d79f2 KB |
629 | |
630 | static int | |
631 | pcmp (const void *p1v, const void *p2v) | |
632 | { | |
633 | struct pd_thread *p1 = (struct pd_thread *) p1v; | |
634 | struct pd_thread *p2 = (struct pd_thread *) p2v; | |
635 | return p1->pthid < p2->pthid ? -1 : p1->pthid > p2->pthid; | |
636 | } | |
637 | ||
77f0be4e JB |
638 | /* iterate_over_threads() callback for counting GDB threads. |
639 | ||
640 | Do not count the main thread (whose tid is zero). This matches | |
641 | the list of threads provided by the pthreaddebug library, which | |
642 | does not include that main thread either, and thus allows us | |
643 | to compare the two lists. */ | |
c11d79f2 KB |
644 | |
645 | static int | |
646 | giter_count (struct thread_info *thread, void *countp) | |
647 | { | |
77f0be4e JB |
648 | if (PD_TID (thread->ptid)) |
649 | (*(int *) countp)++; | |
c11d79f2 KB |
650 | return 0; |
651 | } | |
652 | ||
77f0be4e JB |
653 | /* iterate_over_threads() callback for accumulating GDB thread pids. |
654 | ||
655 | Do not include the main thread (whose tid is zero). This matches | |
656 | the list of threads provided by the pthreaddebug library, which | |
657 | does not include that main thread either, and thus allows us | |
658 | to compare the two lists. */ | |
c11d79f2 KB |
659 | |
660 | static int | |
661 | giter_accum (struct thread_info *thread, void *bufp) | |
662 | { | |
77f0be4e JB |
663 | if (PD_TID (thread->ptid)) |
664 | { | |
665 | **(struct thread_info ***) bufp = thread; | |
666 | (*(struct thread_info ***) bufp)++; | |
667 | } | |
c11d79f2 KB |
668 | return 0; |
669 | } | |
670 | ||
671 | /* ptid comparison function */ | |
0fe7bf7b | 672 | |
c11d79f2 KB |
673 | static int |
674 | ptid_cmp (ptid_t ptid1, ptid_t ptid2) | |
675 | { | |
e99b03dc | 676 | if (ptid1.pid () < ptid2.pid ()) |
c11d79f2 | 677 | return -1; |
e99b03dc | 678 | else if (ptid1.pid () > ptid2.pid ()) |
c11d79f2 | 679 | return 1; |
cc6bcb54 | 680 | else if (ptid1.tid () < ptid2.tid ()) |
c11d79f2 | 681 | return -1; |
cc6bcb54 | 682 | else if (ptid1.tid () > ptid2.tid ()) |
c11d79f2 | 683 | return 1; |
e38504b3 | 684 | else if (ptid1.lwp () < ptid2.lwp ()) |
c11d79f2 | 685 | return -1; |
e38504b3 | 686 | else if (ptid1.lwp () > ptid2.lwp ()) |
c11d79f2 KB |
687 | return 1; |
688 | else | |
689 | return 0; | |
690 | } | |
691 | ||
0fe7bf7b | 692 | /* qsort() comparison function for sorting thread_info structs by pid. */ |
c11d79f2 KB |
693 | |
694 | static int | |
695 | gcmp (const void *t1v, const void *t2v) | |
696 | { | |
697 | struct thread_info *t1 = *(struct thread_info **) t1v; | |
698 | struct thread_info *t2 = *(struct thread_info **) t2v; | |
699 | return ptid_cmp (t1->ptid, t2->ptid); | |
700 | } | |
701 | ||
9ad7bec7 JB |
702 | /* Search through the list of all kernel threads for the thread |
703 | that has stopped on a SIGTRAP signal, and return its TID. | |
704 | Return 0 if none found. */ | |
705 | ||
706 | static pthdb_tid_t | |
707 | get_signaled_thread (void) | |
708 | { | |
709 | struct thrdsinfo64 thrinf; | |
eff44fea | 710 | tid_t ktid = 0; |
9ad7bec7 | 711 | |
9ad7bec7 JB |
712 | while (1) |
713 | { | |
e99b03dc | 714 | if (getthrds (inferior_ptid.pid (), &thrinf, |
9ad7bec7 JB |
715 | sizeof (thrinf), &ktid, 1) != 1) |
716 | break; | |
717 | ||
718 | if (thrinf.ti_cursig == SIGTRAP) | |
719 | return thrinf.ti_tid; | |
720 | } | |
721 | ||
722 | /* Didn't find any thread stopped on a SIGTRAP signal. */ | |
723 | return 0; | |
724 | } | |
725 | ||
c11d79f2 KB |
726 | /* Synchronize GDB's thread list with libpthdebug's. |
727 | ||
728 | There are some benefits of doing this every time the inferior stops: | |
729 | ||
0fe7bf7b MS |
730 | - allows users to run thread-specific commands without needing to |
731 | run "info threads" first | |
c11d79f2 KB |
732 | |
733 | - helps pthdb_tid_pthread() work properly (see "libpthdebug | |
734 | peculiarities" at the top of this module) | |
735 | ||
0fe7bf7b MS |
736 | - simplifies the demands placed on libpthdebug, which seems to |
737 | have difficulty with certain call patterns */ | |
c11d79f2 KB |
738 | |
739 | static void | |
740 | sync_threadlists (void) | |
741 | { | |
742 | int cmd, status, infpid; | |
743 | int pcount, psize, pi, gcount, gi; | |
744 | struct pd_thread *pbuf; | |
745 | struct thread_info **gbuf, **g, *thread; | |
746 | pthdb_pthread_t pdtid; | |
747 | pthread_t pthid; | |
748 | pthdb_tid_t tid; | |
c11d79f2 | 749 | |
0fe7bf7b | 750 | /* Accumulate an array of libpthdebug threads sorted by pthread id. */ |
c11d79f2 KB |
751 | |
752 | pcount = 0; | |
753 | psize = 1; | |
8d749320 | 754 | pbuf = XNEWVEC (struct pd_thread, psize); |
c11d79f2 KB |
755 | |
756 | for (cmd = PTHDB_LIST_FIRST;; cmd = PTHDB_LIST_NEXT) | |
757 | { | |
758 | status = pthdb_pthread (pd_session, &pdtid, cmd); | |
759 | if (status != PTHDB_SUCCESS || pdtid == PTHDB_INVALID_PTHREAD) | |
760 | break; | |
761 | ||
762 | status = pthdb_pthread_ptid (pd_session, pdtid, &pthid); | |
763 | if (status != PTHDB_SUCCESS || pthid == PTHDB_INVALID_PTID) | |
764 | continue; | |
765 | ||
766 | if (pcount == psize) | |
767 | { | |
768 | psize *= 2; | |
0fe7bf7b MS |
769 | pbuf = (struct pd_thread *) xrealloc (pbuf, |
770 | psize * sizeof *pbuf); | |
c11d79f2 KB |
771 | } |
772 | pbuf[pcount].pdtid = pdtid; | |
773 | pbuf[pcount].pthid = pthid; | |
774 | pcount++; | |
775 | } | |
776 | ||
777 | for (pi = 0; pi < pcount; pi++) | |
778 | { | |
779 | status = pthdb_pthread_tid (pd_session, pbuf[pi].pdtid, &tid); | |
780 | if (status != PTHDB_SUCCESS) | |
781 | tid = PTHDB_INVALID_TID; | |
782 | pbuf[pi].tid = tid; | |
783 | } | |
784 | ||
785 | qsort (pbuf, pcount, sizeof *pbuf, pcmp); | |
786 | ||
0fe7bf7b | 787 | /* Accumulate an array of GDB threads sorted by pid. */ |
c11d79f2 KB |
788 | |
789 | gcount = 0; | |
790 | iterate_over_threads (giter_count, &gcount); | |
8d749320 | 791 | g = gbuf = XNEWVEC (struct thread_info *, gcount); |
c11d79f2 KB |
792 | iterate_over_threads (giter_accum, &g); |
793 | qsort (gbuf, gcount, sizeof *gbuf, gcmp); | |
794 | ||
0fe7bf7b | 795 | /* Apply differences between the two arrays to GDB's thread list. */ |
c11d79f2 | 796 | |
e99b03dc | 797 | infpid = inferior_ptid.pid (); |
c11d79f2 KB |
798 | for (pi = gi = 0; pi < pcount || gi < gcount;) |
799 | { | |
c11d79f2 | 800 | if (pi == pcount) |
c11d79f2 | 801 | { |
b7a08269 | 802 | delete_thread (gbuf[gi]); |
c11d79f2 KB |
803 | gi++; |
804 | } | |
42cc437f | 805 | else if (gi == gcount) |
c11d79f2 | 806 | { |
7aabaf9d SM |
807 | aix_thread_info *priv = new aix_thread_info; |
808 | priv->pdtid = pbuf[pi].pdtid; | |
809 | priv->tid = pbuf[pi].tid; | |
810 | ||
811 | thread = add_thread_with_info (ptid_t (infpid, 0, pbuf[pi].pthid), priv); | |
812 | ||
c11d79f2 KB |
813 | pi++; |
814 | } | |
42cc437f KB |
815 | else |
816 | { | |
817 | ptid_t pptid, gptid; | |
818 | int cmp_result; | |
819 | ||
fd79271b | 820 | pptid = ptid_t (infpid, 0, pbuf[pi].pthid); |
42cc437f KB |
821 | gptid = gbuf[gi]->ptid; |
822 | pdtid = pbuf[pi].pdtid; | |
823 | tid = pbuf[pi].tid; | |
c11d79f2 | 824 | |
42cc437f KB |
825 | cmp_result = ptid_cmp (pptid, gptid); |
826 | ||
827 | if (cmp_result == 0) | |
828 | { | |
7aabaf9d SM |
829 | aix_thread_info *priv = get_aix_thread_info (gbuf[gi]); |
830 | ||
831 | priv->pdtid = pdtid; | |
832 | priv->tid = tid; | |
42cc437f KB |
833 | pi++; |
834 | gi++; | |
835 | } | |
836 | else if (cmp_result > 0) | |
837 | { | |
b7a08269 | 838 | delete_thread (gbuf[gi]); |
42cc437f KB |
839 | gi++; |
840 | } | |
841 | else | |
842 | { | |
843 | thread = add_thread (pptid); | |
7aabaf9d SM |
844 | |
845 | aix_thread_info *priv = new aix_thread_info; | |
846 | thread->priv.reset (priv); | |
847 | priv->pdtid = pdtid; | |
848 | priv->tid = tid; | |
42cc437f KB |
849 | pi++; |
850 | } | |
851 | } | |
c11d79f2 KB |
852 | } |
853 | ||
854 | xfree (pbuf); | |
855 | xfree (gbuf); | |
856 | } | |
857 | ||
9ad7bec7 JB |
858 | /* Iterate_over_threads() callback for locating a thread, using |
859 | the TID of its associated kernel thread. */ | |
c11d79f2 KB |
860 | |
861 | static int | |
9ad7bec7 | 862 | iter_tid (struct thread_info *thread, void *tidp) |
c11d79f2 | 863 | { |
9ad7bec7 | 864 | const pthdb_tid_t tid = *(pthdb_tid_t *)tidp; |
7aabaf9d | 865 | aix_thread_info *priv = get_aix_thread_info (thread); |
c11d79f2 | 866 | |
7aabaf9d | 867 | return priv->tid == tid; |
c11d79f2 KB |
868 | } |
869 | ||
0fe7bf7b MS |
870 | /* Synchronize libpthdebug's state with the inferior and with GDB, |
871 | generate a composite process/thread <pid> for the current thread, | |
872 | set inferior_ptid to <pid> if SET_INFPID, and return <pid>. */ | |
c11d79f2 KB |
873 | |
874 | static ptid_t | |
875 | pd_update (int set_infpid) | |
876 | { | |
877 | int status; | |
878 | ptid_t ptid; | |
9ad7bec7 JB |
879 | pthdb_tid_t tid; |
880 | struct thread_info *thread = NULL; | |
c11d79f2 KB |
881 | |
882 | if (!pd_active) | |
883 | return inferior_ptid; | |
884 | ||
885 | status = pthdb_session_update (pd_session); | |
886 | if (status != PTHDB_SUCCESS) | |
887 | return inferior_ptid; | |
888 | ||
889 | sync_threadlists (); | |
890 | ||
0fe7bf7b | 891 | /* Define "current thread" as one that just received a trap signal. */ |
c11d79f2 | 892 | |
9ad7bec7 JB |
893 | tid = get_signaled_thread (); |
894 | if (tid != 0) | |
895 | thread = iterate_over_threads (iter_tid, &tid); | |
c11d79f2 KB |
896 | if (!thread) |
897 | ptid = inferior_ptid; | |
898 | else | |
899 | { | |
900 | ptid = thread->ptid; | |
901 | if (set_infpid) | |
902 | inferior_ptid = ptid; | |
903 | } | |
904 | return ptid; | |
905 | } | |
906 | ||
0963b4bd | 907 | /* Try to start debugging threads in the current process. |
0fe7bf7b MS |
908 | If successful and SET_INFPID, set inferior_ptid to reflect the |
909 | current thread. */ | |
c11d79f2 KB |
910 | |
911 | static ptid_t | |
912 | pd_activate (int set_infpid) | |
913 | { | |
914 | int status; | |
915 | ||
916 | status = pthdb_session_init (PD_USER, arch64 ? PEM_64BIT : PEM_32BIT, | |
0fe7bf7b MS |
917 | PTHDB_FLAG_REGS, &pd_callbacks, |
918 | &pd_session); | |
c11d79f2 KB |
919 | if (status != PTHDB_SUCCESS) |
920 | { | |
921 | return inferior_ptid; | |
922 | } | |
923 | pd_active = 1; | |
924 | return pd_update (set_infpid); | |
925 | } | |
926 | ||
0fe7bf7b | 927 | /* Undo the effects of pd_activate(). */ |
c11d79f2 KB |
928 | |
929 | static void | |
930 | pd_deactivate (void) | |
931 | { | |
932 | if (!pd_active) | |
933 | return; | |
934 | pthdb_session_destroy (pd_session); | |
935 | ||
936 | pid_to_prc (&inferior_ptid); | |
937 | pd_active = 0; | |
938 | } | |
939 | ||
0fe7bf7b MS |
940 | /* An object file has just been loaded. Check whether the current |
941 | application is pthreaded, and if so, prepare for thread debugging. */ | |
c11d79f2 KB |
942 | |
943 | static void | |
944 | pd_enable (void) | |
945 | { | |
946 | int status; | |
947 | char *stub_name; | |
3b7344d5 | 948 | struct bound_minimal_symbol ms; |
c11d79f2 | 949 | |
0fe7bf7b | 950 | /* Don't initialize twice. */ |
c11d79f2 KB |
951 | if (pd_able) |
952 | return; | |
953 | ||
0fe7bf7b | 954 | /* Check application word size. */ |
f5656ead | 955 | arch64 = register_size (target_gdbarch (), 0) == 8; |
c11d79f2 | 956 | |
0fe7bf7b | 957 | /* Check whether the application is pthreaded. */ |
c11d79f2 | 958 | stub_name = NULL; |
0fe7bf7b MS |
959 | status = pthdb_session_pthreaded (PD_USER, PTHDB_FLAG_REGS, |
960 | &pd_callbacks, &stub_name); | |
f8bf5763 PM |
961 | if ((status != PTHDB_SUCCESS |
962 | && status != PTHDB_NOT_PTHREADED) || !stub_name) | |
c11d79f2 KB |
963 | return; |
964 | ||
0fe7bf7b | 965 | /* Set a breakpoint on the returned stub function. */ |
3b7344d5 TT |
966 | ms = lookup_minimal_symbol (stub_name, NULL, NULL); |
967 | if (ms.minsym == NULL) | |
c11d79f2 | 968 | return; |
77e371c0 | 969 | pd_brk_addr = BMSYMBOL_VALUE_ADDRESS (ms); |
f5656ead | 970 | if (!create_thread_event_breakpoint (target_gdbarch (), pd_brk_addr)) |
c11d79f2 KB |
971 | return; |
972 | ||
0fe7bf7b | 973 | /* Prepare for thread debugging. */ |
206d3d3c | 974 | push_target (&aix_thread_ops); |
c11d79f2 KB |
975 | pd_able = 1; |
976 | ||
0fe7bf7b MS |
977 | /* If we're debugging a core file or an attached inferior, the |
978 | pthread library may already have been initialized, so try to | |
979 | activate thread debugging. */ | |
c11d79f2 KB |
980 | pd_activate (1); |
981 | } | |
982 | ||
0fe7bf7b | 983 | /* Undo the effects of pd_enable(). */ |
c11d79f2 KB |
984 | |
985 | static void | |
986 | pd_disable (void) | |
987 | { | |
988 | if (!pd_able) | |
989 | return; | |
990 | if (pd_active) | |
991 | pd_deactivate (); | |
992 | pd_able = 0; | |
206d3d3c | 993 | unpush_target (&aix_thread_ops); |
c11d79f2 KB |
994 | } |
995 | ||
06d3b283 | 996 | /* new_objfile observer callback. |
c11d79f2 | 997 | |
0fe7bf7b MS |
998 | If OBJFILE is non-null, check whether a threaded application is |
999 | being debugged, and if so, prepare for thread debugging. | |
c11d79f2 | 1000 | |
0fe7bf7b | 1001 | If OBJFILE is null, stop debugging threads. */ |
c11d79f2 KB |
1002 | |
1003 | static void | |
1004 | new_objfile (struct objfile *objfile) | |
1005 | { | |
1006 | if (objfile) | |
1007 | pd_enable (); | |
1008 | else | |
1009 | pd_disable (); | |
c11d79f2 KB |
1010 | } |
1011 | ||
0fe7bf7b | 1012 | /* Attach to process specified by ARGS. */ |
c11d79f2 KB |
1013 | |
1014 | static void | |
b3ccfe11 | 1015 | aix_thread_inferior_created (struct target_ops *ops, int from_tty) |
c11d79f2 | 1016 | { |
b3ccfe11 | 1017 | pd_enable (); |
c11d79f2 KB |
1018 | } |
1019 | ||
206d3d3c | 1020 | /* Detach from the process attached to by aix_thread_attach(). */ |
c11d79f2 | 1021 | |
f6ac5f3d PA |
1022 | void |
1023 | aix_thread_target::detach (inferior *inf, int from_tty) | |
c11d79f2 | 1024 | { |
d6ca69cd | 1025 | target_ops *beneath = this->beneath (); |
d30acaa7 | 1026 | |
6c0c456d | 1027 | pd_disable (); |
f6ac5f3d | 1028 | beneath->detach (inf, from_tty); |
c11d79f2 KB |
1029 | } |
1030 | ||
1031 | /* Tell the inferior process to continue running thread PID if != -1 | |
0fe7bf7b | 1032 | and all threads otherwise. */ |
c11d79f2 | 1033 | |
f6ac5f3d PA |
1034 | void |
1035 | aix_thread_target::resume (ptid_t ptid, int step, enum gdb_signal sig) | |
c11d79f2 KB |
1036 | { |
1037 | struct thread_info *thread; | |
1038 | pthdb_tid_t tid[2]; | |
1039 | ||
1040 | if (!PD_TID (ptid)) | |
14fa3751 | 1041 | { |
2989a365 | 1042 | scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid); |
d30acaa7 | 1043 | |
e99b03dc | 1044 | inferior_ptid = ptid_t (inferior_ptid.pid ()); |
d6ca69cd | 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"), |
e38504b3 | 1052 | ptid.lwp ()); |
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"), |
e38504b3 | 1059 | ptid.lwp ()); |
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 | { |
2989a365 TT |
1079 | { |
1080 | scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid); | |
14fa3751 | 1081 | |
2989a365 TT |
1082 | pid_to_prc (&ptid); |
1083 | ||
e99b03dc | 1084 | inferior_ptid = ptid_t (inferior_ptid.pid ()); |
d6ca69cd | 1085 | ptid = beneath ()->wait (ptid, status, options); |
2989a365 | 1086 | } |
14fa3751 | 1087 | |
e99b03dc | 1088 | if (ptid.pid () == -1) |
f2907e49 | 1089 | return ptid_t (-1); |
c11d79f2 | 1090 | |
0fe7bf7b | 1091 | /* Check whether libpthdebug might be ready to be initialized. */ |
515630c5 | 1092 | if (!pd_active && status->kind == TARGET_WAITKIND_STOPPED |
a493e3e2 | 1093 | && status->value.sig == GDB_SIGNAL_TRAP) |
515630c5 UW |
1094 | { |
1095 | struct regcache *regcache = get_thread_regcache (ptid); | |
ac7936df | 1096 | struct gdbarch *gdbarch = regcache->arch (); |
515630c5 UW |
1097 | |
1098 | if (regcache_read_pc (regcache) | |
527a273a | 1099 | - gdbarch_decr_pc_after_break (gdbarch) == pd_brk_addr) |
515630c5 UW |
1100 | return pd_activate (0); |
1101 | } | |
c11d79f2 KB |
1102 | |
1103 | return pd_update (0); | |
1104 | } | |
1105 | ||
0fe7bf7b | 1106 | /* Record that the 64-bit general-purpose registers contain VALS. */ |
c11d79f2 KB |
1107 | |
1108 | static void | |
647478e0 | 1109 | supply_gprs64 (struct regcache *regcache, uint64_t *vals) |
c11d79f2 | 1110 | { |
ac7936df | 1111 | struct gdbarch_tdep *tdep = gdbarch_tdep (regcache->arch ()); |
c11d79f2 KB |
1112 | int regno; |
1113 | ||
063715bf | 1114 | for (regno = 0; regno < ppc_num_gprs; regno++) |
73e1c03f SM |
1115 | regcache->raw_supply (tdep->ppc_gp0_regnum + regno, |
1116 | (char *) (vals + regno)); | |
c11d79f2 KB |
1117 | } |
1118 | ||
0fe7bf7b | 1119 | /* Record that 32-bit register REGNO contains VAL. */ |
c11d79f2 KB |
1120 | |
1121 | static void | |
647478e0 | 1122 | supply_reg32 (struct regcache *regcache, int regno, uint32_t val) |
c11d79f2 | 1123 | { |
73e1c03f | 1124 | regcache->raw_supply (regno, (char *) &val); |
c11d79f2 KB |
1125 | } |
1126 | ||
0fe7bf7b | 1127 | /* Record that the floating-point registers contain VALS. */ |
c11d79f2 KB |
1128 | |
1129 | static void | |
647478e0 | 1130 | supply_fprs (struct regcache *regcache, double *vals) |
c11d79f2 | 1131 | { |
ac7936df | 1132 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1133 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
c11d79f2 KB |
1134 | int regno; |
1135 | ||
383f0f5b JB |
1136 | /* This function should never be called on architectures without |
1137 | floating-point registers. */ | |
c7f30c7a | 1138 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1139 | |
786c562f JB |
1140 | for (regno = tdep->ppc_fp0_regnum; |
1141 | regno < tdep->ppc_fp0_regnum + ppc_num_fprs; | |
1142 | regno++) | |
73e1c03f SM |
1143 | regcache->raw_supply (regno, |
1144 | (char *) (vals + regno - tdep->ppc_fp0_regnum)); | |
c11d79f2 KB |
1145 | } |
1146 | ||
f1a91342 KB |
1147 | /* Predicate to test whether given register number is a "special" register. */ |
1148 | static int | |
9970f04b | 1149 | special_register_p (struct gdbarch *gdbarch, int regno) |
f1a91342 | 1150 | { |
9970f04b | 1151 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1152 | |
9970f04b | 1153 | return regno == gdbarch_pc_regnum (gdbarch) |
f1a91342 KB |
1154 | || regno == tdep->ppc_ps_regnum |
1155 | || regno == tdep->ppc_cr_regnum | |
1156 | || regno == tdep->ppc_lr_regnum | |
1157 | || regno == tdep->ppc_ctr_regnum | |
1158 | || regno == tdep->ppc_xer_regnum | |
383f0f5b | 1159 | || (tdep->ppc_fpscr_regnum >= 0 && regno == tdep->ppc_fpscr_regnum) |
f1a91342 KB |
1160 | || (tdep->ppc_mq_regnum >= 0 && regno == tdep->ppc_mq_regnum); |
1161 | } | |
1162 | ||
1163 | ||
0fe7bf7b MS |
1164 | /* Record that the special registers contain the specified 64-bit and |
1165 | 32-bit values. */ | |
c11d79f2 KB |
1166 | |
1167 | static void | |
647478e0 UW |
1168 | supply_sprs64 (struct regcache *regcache, |
1169 | uint64_t iar, uint64_t msr, uint32_t cr, | |
0e061eef KB |
1170 | uint64_t lr, uint64_t ctr, uint32_t xer, |
1171 | uint32_t fpscr) | |
c11d79f2 | 1172 | { |
ac7936df | 1173 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1174 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1175 | |
73e1c03f SM |
1176 | regcache->raw_supply (gdbarch_pc_regnum (gdbarch), (char *) &iar); |
1177 | regcache->raw_supply (tdep->ppc_ps_regnum, (char *) &msr); | |
1178 | regcache->raw_supply (tdep->ppc_cr_regnum, (char *) &cr); | |
1179 | regcache->raw_supply (tdep->ppc_lr_regnum, (char *) &lr); | |
1180 | regcache->raw_supply (tdep->ppc_ctr_regnum, (char *) &ctr); | |
1181 | regcache->raw_supply (tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1182 | if (tdep->ppc_fpscr_regnum >= 0) |
73e1c03f | 1183 | regcache->raw_supply (tdep->ppc_fpscr_regnum, (char *) &fpscr); |
c11d79f2 KB |
1184 | } |
1185 | ||
0fe7bf7b MS |
1186 | /* Record that the special registers contain the specified 32-bit |
1187 | values. */ | |
c11d79f2 KB |
1188 | |
1189 | static void | |
647478e0 UW |
1190 | supply_sprs32 (struct regcache *regcache, |
1191 | uint32_t iar, uint32_t msr, uint32_t cr, | |
0e061eef KB |
1192 | uint32_t lr, uint32_t ctr, uint32_t xer, |
1193 | uint32_t fpscr) | |
c11d79f2 | 1194 | { |
ac7936df | 1195 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1196 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1197 | |
73e1c03f SM |
1198 | regcache->raw_supply (gdbarch_pc_regnum (gdbarch), (char *) &iar); |
1199 | regcache->raw_supply (tdep->ppc_ps_regnum, (char *) &msr); | |
1200 | regcache->raw_supply (tdep->ppc_cr_regnum, (char *) &cr); | |
1201 | regcache->raw_supply (tdep->ppc_lr_regnum, (char *) &lr); | |
1202 | regcache->raw_supply (tdep->ppc_ctr_regnum, (char *) &ctr); | |
1203 | regcache->raw_supply (tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1204 | if (tdep->ppc_fpscr_regnum >= 0) |
73e1c03f | 1205 | regcache->raw_supply (tdep->ppc_fpscr_regnum, (char *) &fpscr); |
c11d79f2 KB |
1206 | } |
1207 | ||
1208 | /* Fetch all registers from pthread PDTID, which doesn't have a kernel | |
1209 | thread. | |
1210 | ||
0fe7bf7b MS |
1211 | There's no way to query a single register from a non-kernel |
1212 | pthread, so there's no need for a single-register version of this | |
1213 | function. */ | |
c11d79f2 KB |
1214 | |
1215 | static void | |
647478e0 | 1216 | fetch_regs_user_thread (struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1217 | { |
ac7936df | 1218 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1219 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
c11d79f2 KB |
1220 | int status, i; |
1221 | pthdb_context_t ctx; | |
1222 | ||
8e2c28d4 | 1223 | if (debug_aix_thread) |
206d3d3c KB |
1224 | fprintf_unfiltered (gdb_stdlog, |
1225 | "fetch_regs_user_thread %lx\n", (long) pdtid); | |
c11d79f2 KB |
1226 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1227 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1228 | error (_("aix-thread: fetch_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1229 | pd_status2str (status)); |
c11d79f2 | 1230 | |
0fe7bf7b | 1231 | /* General-purpose registers. */ |
c11d79f2 KB |
1232 | |
1233 | if (arch64) | |
647478e0 | 1234 | supply_gprs64 (regcache, ctx.gpr); |
c11d79f2 | 1235 | else |
063715bf | 1236 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1237 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, ctx.gpr[i]); |
c11d79f2 | 1238 | |
0fe7bf7b | 1239 | /* Floating-point registers. */ |
c11d79f2 | 1240 | |
c7f30c7a | 1241 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1242 | supply_fprs (regcache, ctx.fpr); |
c11d79f2 | 1243 | |
0fe7bf7b | 1244 | /* Special registers. */ |
c11d79f2 KB |
1245 | |
1246 | if (arch64) | |
647478e0 UW |
1247 | supply_sprs64 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1248 | ctx.xer, ctx.fpscr); | |
c11d79f2 | 1249 | else |
647478e0 UW |
1250 | supply_sprs32 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1251 | ctx.xer, ctx.fpscr); | |
c11d79f2 KB |
1252 | } |
1253 | ||
0fe7bf7b MS |
1254 | /* Fetch register REGNO if != -1 or all registers otherwise from |
1255 | kernel thread TID. | |
c11d79f2 | 1256 | |
0fe7bf7b MS |
1257 | AIX provides a way to query all of a kernel thread's GPRs, FPRs, or |
1258 | SPRs, but there's no way to query individual registers within those | |
1259 | groups. Therefore, if REGNO != -1, this function fetches an entire | |
1260 | group. | |
c11d79f2 | 1261 | |
0fe7bf7b MS |
1262 | Unfortunately, kernel thread register queries often fail with |
1263 | EPERM, indicating that the thread is in kernel space. This breaks | |
1264 | backtraces of threads other than the current one. To make that | |
1265 | breakage obvious without throwing an error to top level (which is | |
1266 | bad e.g. during "info threads" output), zero registers that can't | |
1267 | be retrieved. */ | |
c11d79f2 KB |
1268 | |
1269 | static void | |
647478e0 UW |
1270 | fetch_regs_kernel_thread (struct regcache *regcache, int regno, |
1271 | pthdb_tid_t tid) | |
c11d79f2 | 1272 | { |
ac7936df | 1273 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1274 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
063715bf JB |
1275 | uint64_t gprs64[ppc_num_gprs]; |
1276 | uint32_t gprs32[ppc_num_gprs]; | |
1277 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
1278 | struct ptxsprs sprs64; |
1279 | struct ptsprs sprs32; | |
1280 | int i; | |
1281 | ||
8e2c28d4 KB |
1282 | if (debug_aix_thread) |
1283 | fprintf_unfiltered (gdb_stdlog, | |
206d3d3c KB |
1284 | "fetch_regs_kernel_thread tid=%lx regno=%d arch64=%d\n", |
1285 | (long) tid, regno, arch64); | |
c11d79f2 | 1286 | |
0fe7bf7b | 1287 | /* General-purpose registers. */ |
daf6dc85 JB |
1288 | if (regno == -1 |
1289 | || (tdep->ppc_gp0_regnum <= regno | |
1290 | && regno < tdep->ppc_gp0_regnum + ppc_num_gprs)) | |
c11d79f2 KB |
1291 | { |
1292 | if (arch64) | |
1293 | { | |
0fe7bf7b MS |
1294 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
1295 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 | 1296 | memset (gprs64, 0, sizeof (gprs64)); |
647478e0 | 1297 | supply_gprs64 (regcache, gprs64); |
c11d79f2 KB |
1298 | } |
1299 | else | |
1300 | { | |
3b631e37 | 1301 | if (!ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL)) |
c11d79f2 | 1302 | memset (gprs32, 0, sizeof (gprs32)); |
063715bf | 1303 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1304 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, gprs32[i]); |
c11d79f2 KB |
1305 | } |
1306 | } | |
1307 | ||
0fe7bf7b | 1308 | /* Floating-point registers. */ |
c11d79f2 | 1309 | |
c7f30c7a | 1310 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1311 | && (regno == -1 |
1312 | || (regno >= tdep->ppc_fp0_regnum | |
1313 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 | 1314 | { |
3b631e37 | 1315 | if (!ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL)) |
c11d79f2 | 1316 | memset (fprs, 0, sizeof (fprs)); |
647478e0 | 1317 | supply_fprs (regcache, fprs); |
c11d79f2 KB |
1318 | } |
1319 | ||
0fe7bf7b | 1320 | /* Special-purpose registers. */ |
c11d79f2 | 1321 | |
9970f04b | 1322 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1323 | { |
1324 | if (arch64) | |
1325 | { | |
0fe7bf7b MS |
1326 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
1327 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 | 1328 | memset (&sprs64, 0, sizeof (sprs64)); |
647478e0 UW |
1329 | supply_sprs64 (regcache, sprs64.pt_iar, sprs64.pt_msr, |
1330 | sprs64.pt_cr, sprs64.pt_lr, sprs64.pt_ctr, | |
1331 | sprs64.pt_xer, sprs64.pt_fpscr); | |
c11d79f2 KB |
1332 | } |
1333 | else | |
1334 | { | |
3b631e37 | 1335 | if (!ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL)) |
c11d79f2 | 1336 | memset (&sprs32, 0, sizeof (sprs32)); |
647478e0 | 1337 | supply_sprs32 (regcache, sprs32.pt_iar, sprs32.pt_msr, sprs32.pt_cr, |
0e061eef KB |
1338 | sprs32.pt_lr, sprs32.pt_ctr, sprs32.pt_xer, |
1339 | sprs32.pt_fpscr); | |
c11d79f2 | 1340 | |
f1a91342 | 1341 | if (tdep->ppc_mq_regnum >= 0) |
73e1c03f | 1342 | regcache->raw_supply (tdep->ppc_mq_regnum, (char *) &sprs32.pt_mq); |
c11d79f2 KB |
1343 | } |
1344 | } | |
1345 | } | |
1346 | ||
edb5fb00 SM |
1347 | /* Fetch register REGNO if != -1 or all registers otherwise from the |
1348 | thread/process connected to REGCACHE. */ | |
c11d79f2 | 1349 | |
f6ac5f3d PA |
1350 | void |
1351 | aix_thread_target::fetch_registers (struct regcache *regcache, int regno) | |
c11d79f2 KB |
1352 | { |
1353 | struct thread_info *thread; | |
1354 | pthdb_tid_t tid; | |
1355 | ||
222312d3 | 1356 | if (!PD_TID (regcache->ptid ())) |
d6ca69cd | 1357 | beneath ()->fetch_registers (regcache, regno); |
c11d79f2 KB |
1358 | else |
1359 | { | |
222312d3 | 1360 | thread = find_thread_ptid (regcache->ptid ()); |
7aabaf9d SM |
1361 | aix_thread_info *priv = get_aix_thread_info (thread); |
1362 | tid = priv->tid; | |
c11d79f2 KB |
1363 | |
1364 | if (tid == PTHDB_INVALID_TID) | |
7aabaf9d | 1365 | fetch_regs_user_thread (regcache, priv->pdtid); |
c11d79f2 | 1366 | else |
56be3814 | 1367 | fetch_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1368 | } |
1369 | } | |
1370 | ||
61c5da0b KB |
1371 | /* Store the gp registers into an array of uint32_t or uint64_t. */ |
1372 | ||
1373 | static void | |
647478e0 | 1374 | fill_gprs64 (const struct regcache *regcache, uint64_t *vals) |
61c5da0b | 1375 | { |
ac7936df | 1376 | struct gdbarch_tdep *tdep = gdbarch_tdep (regcache->arch ()); |
61c5da0b KB |
1377 | int regno; |
1378 | ||
daf6dc85 | 1379 | for (regno = 0; regno < ppc_num_gprs; regno++) |
0ec9f114 SM |
1380 | if (REG_VALID == regcache->get_register_status |
1381 | (tdep->ppc_gp0_regnum + regno)) | |
34a79281 | 1382 | regcache->raw_collect (tdep->ppc_gp0_regnum + regno, vals + regno); |
61c5da0b KB |
1383 | } |
1384 | ||
1385 | static void | |
647478e0 | 1386 | fill_gprs32 (const struct regcache *regcache, uint32_t *vals) |
61c5da0b | 1387 | { |
ac7936df | 1388 | struct gdbarch_tdep *tdep = gdbarch_tdep (regcache->arch ()); |
61c5da0b KB |
1389 | int regno; |
1390 | ||
daf6dc85 | 1391 | for (regno = 0; regno < ppc_num_gprs; regno++) |
0ec9f114 SM |
1392 | if (REG_VALID == regcache->get_register_status |
1393 | (tdep->ppc_gp0_regnum + regno)) | |
34a79281 | 1394 | regcache->raw_collect (tdep->ppc_gp0_regnum + regno, vals + regno); |
61c5da0b KB |
1395 | } |
1396 | ||
1397 | /* Store the floating point registers into a double array. */ | |
1398 | static void | |
647478e0 | 1399 | fill_fprs (const struct regcache *regcache, double *vals) |
61c5da0b | 1400 | { |
ac7936df | 1401 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1402 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
61c5da0b KB |
1403 | int regno; |
1404 | ||
383f0f5b JB |
1405 | /* This function should never be called on architectures without |
1406 | floating-point registers. */ | |
c7f30c7a | 1407 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1408 | |
366f009f JB |
1409 | for (regno = tdep->ppc_fp0_regnum; |
1410 | regno < tdep->ppc_fp0_regnum + ppc_num_fprs; | |
1411 | regno++) | |
0ec9f114 | 1412 | if (REG_VALID == regcache->get_register_status (regno)) |
34a79281 | 1413 | regcache->raw_collect (regno, vals + regno - tdep->ppc_fp0_regnum); |
61c5da0b KB |
1414 | } |
1415 | ||
c11d79f2 | 1416 | /* Store the special registers into the specified 64-bit and 32-bit |
0fe7bf7b | 1417 | locations. */ |
c11d79f2 KB |
1418 | |
1419 | static void | |
647478e0 UW |
1420 | fill_sprs64 (const struct regcache *regcache, |
1421 | uint64_t *iar, uint64_t *msr, uint32_t *cr, | |
0e061eef KB |
1422 | uint64_t *lr, uint64_t *ctr, uint32_t *xer, |
1423 | uint32_t *fpscr) | |
c11d79f2 | 1424 | { |
ac7936df | 1425 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1426 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 KB |
1427 | |
1428 | /* Verify that the size of the size of the IAR buffer is the | |
1429 | same as the raw size of the PC (in the register cache). If | |
1430 | they're not, then either GDB has been built incorrectly, or | |
1431 | there's some other kind of internal error. To be really safe, | |
1432 | we should check all of the sizes. */ | |
3e8c568d | 1433 | gdb_assert (sizeof (*iar) == register_size |
c7f30c7a | 1434 | (gdbarch, gdbarch_pc_regnum (gdbarch))); |
f1a91342 | 1435 | |
0ec9f114 | 1436 | if (REG_VALID == regcache->get_register_status (gdbarch_pc_regnum (gdbarch))) |
34a79281 | 1437 | regcache->raw_collect (gdbarch_pc_regnum (gdbarch), iar); |
0ec9f114 | 1438 | if (REG_VALID == regcache->get_register_status (tdep->ppc_ps_regnum)) |
34a79281 | 1439 | regcache->raw_collect (tdep->ppc_ps_regnum, msr); |
0ec9f114 | 1440 | if (REG_VALID == regcache->get_register_status (tdep->ppc_cr_regnum)) |
34a79281 | 1441 | regcache->raw_collect (tdep->ppc_cr_regnum, cr); |
0ec9f114 | 1442 | if (REG_VALID == regcache->get_register_status (tdep->ppc_lr_regnum)) |
34a79281 | 1443 | regcache->raw_collect (tdep->ppc_lr_regnum, lr); |
0ec9f114 | 1444 | if (REG_VALID == regcache->get_register_status (tdep->ppc_ctr_regnum)) |
34a79281 | 1445 | regcache->raw_collect (tdep->ppc_ctr_regnum, ctr); |
0ec9f114 | 1446 | if (REG_VALID == regcache->get_register_status (tdep->ppc_xer_regnum)) |
34a79281 | 1447 | regcache->raw_collect (tdep->ppc_xer_regnum, xer); |
383f0f5b | 1448 | if (tdep->ppc_fpscr_regnum >= 0 |
0ec9f114 | 1449 | && REG_VALID == regcache->get_register_status (tdep->ppc_fpscr_regnum)) |
34a79281 | 1450 | regcache->raw_collect (tdep->ppc_fpscr_regnum, fpscr); |
61c5da0b KB |
1451 | } |
1452 | ||
1453 | static void | |
647478e0 UW |
1454 | fill_sprs32 (const struct regcache *regcache, |
1455 | uint32_t *iar, uint32_t *msr, uint32_t *cr, | |
0d16ee5d UW |
1456 | uint32_t *lr, uint32_t *ctr, uint32_t *xer, |
1457 | uint32_t *fpscr) | |
61c5da0b | 1458 | { |
ac7936df | 1459 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1460 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 KB |
1461 | |
1462 | /* Verify that the size of the size of the IAR buffer is the | |
1463 | same as the raw size of the PC (in the register cache). If | |
1464 | they're not, then either GDB has been built incorrectly, or | |
1465 | there's some other kind of internal error. To be really safe, | |
0d16ee5d | 1466 | we should check all of the sizes. */ |
c7f30c7a UW |
1467 | gdb_assert (sizeof (*iar) == register_size (gdbarch, |
1468 | gdbarch_pc_regnum (gdbarch))); | |
f1a91342 | 1469 | |
0ec9f114 | 1470 | if (REG_VALID == regcache->get_register_status (gdbarch_pc_regnum (gdbarch))) |
34a79281 | 1471 | regcache->raw_collect (gdbarch_pc_regnum (gdbarch), iar); |
0ec9f114 | 1472 | if (REG_VALID == regcache->get_register_status (tdep->ppc_ps_regnum)) |
34a79281 | 1473 | regcache->raw_collect (tdep->ppc_ps_regnum, msr); |
0ec9f114 | 1474 | if (REG_VALID == regcache->get_register_status (tdep->ppc_cr_regnum)) |
34a79281 | 1475 | regcache->raw_collect (tdep->ppc_cr_regnum, cr); |
0ec9f114 | 1476 | if (REG_VALID == regcache->get_register_status (tdep->ppc_lr_regnum)) |
34a79281 | 1477 | regcache->raw_collect (tdep->ppc_lr_regnum, lr); |
0ec9f114 | 1478 | if (REG_VALID == regcache->get_register_status (tdep->ppc_ctr_regnum)) |
34a79281 | 1479 | regcache->raw_collect (tdep->ppc_ctr_regnum, ctr); |
0ec9f114 | 1480 | if (REG_VALID == regcache->get_register_status (tdep->ppc_xer_regnum)) |
34a79281 | 1481 | regcache->raw_collect (tdep->ppc_xer_regnum, xer); |
383f0f5b | 1482 | if (tdep->ppc_fpscr_regnum >= 0 |
0ec9f114 | 1483 | && REG_VALID == regcache->get_register_status (tdep->ppc_fpscr_regnum)) |
34a79281 | 1484 | regcache->raw_collect (tdep->ppc_fpscr_regnum, fpscr); |
c11d79f2 KB |
1485 | } |
1486 | ||
1487 | /* Store all registers into pthread PDTID, which doesn't have a kernel | |
1488 | thread. | |
1489 | ||
0fe7bf7b MS |
1490 | It's possible to store a single register into a non-kernel pthread, |
1491 | but I doubt it's worth the effort. */ | |
c11d79f2 KB |
1492 | |
1493 | static void | |
647478e0 | 1494 | store_regs_user_thread (const struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1495 | { |
ac7936df | 1496 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1497 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
c11d79f2 KB |
1498 | int status, i; |
1499 | pthdb_context_t ctx; | |
61c5da0b KB |
1500 | uint32_t int32; |
1501 | uint64_t int64; | |
c11d79f2 | 1502 | |
8e2c28d4 | 1503 | if (debug_aix_thread) |
0fe7bf7b | 1504 | fprintf_unfiltered (gdb_stdlog, |
206d3d3c | 1505 | "store_regs_user_thread %lx\n", (long) pdtid); |
c11d79f2 | 1506 | |
0fe7bf7b MS |
1507 | /* Retrieve the thread's current context for its non-register |
1508 | values. */ | |
c11d79f2 KB |
1509 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1510 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1511 | error (_("aix-thread: store_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1512 | pd_status2str (status)); |
c11d79f2 | 1513 | |
61c5da0b | 1514 | /* Collect general-purpose register values from the regcache. */ |
c11d79f2 | 1515 | |
063715bf | 1516 | for (i = 0; i < ppc_num_gprs; i++) |
0ec9f114 | 1517 | if (REG_VALID == regcache->get_register_status (tdep->ppc_gp0_regnum + i)) |
cbe92db4 KB |
1518 | { |
1519 | if (arch64) | |
1520 | { | |
34a79281 | 1521 | regcache->raw_collect (tdep->ppc_gp0_regnum + i, (void *) &int64); |
cbe92db4 KB |
1522 | ctx.gpr[i] = int64; |
1523 | } | |
1524 | else | |
1525 | { | |
34a79281 | 1526 | regcache->raw_collect (tdep->ppc_gp0_regnum + i, (void *) &int32); |
cbe92db4 KB |
1527 | ctx.gpr[i] = int32; |
1528 | } | |
1529 | } | |
c11d79f2 | 1530 | |
61c5da0b | 1531 | /* Collect floating-point register values from the regcache. */ |
c7f30c7a | 1532 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1533 | fill_fprs (regcache, ctx.fpr); |
c11d79f2 | 1534 | |
61c5da0b KB |
1535 | /* Special registers (always kept in ctx as 64 bits). */ |
1536 | if (arch64) | |
1537 | { | |
647478e0 UW |
1538 | fill_sprs64 (regcache, &ctx.iar, &ctx.msr, &ctx.cr, &ctx.lr, &ctx.ctr, |
1539 | &ctx.xer, &ctx.fpscr); | |
61c5da0b KB |
1540 | } |
1541 | else | |
1542 | { | |
1543 | /* Problem: ctx.iar etc. are 64 bits, but raw_registers are 32. | |
0d16ee5d UW |
1544 | Solution: use 32-bit temp variables. */ |
1545 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1546 | tmp_fpscr; | |
61c5da0b | 1547 | |
647478e0 UW |
1548 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, &tmp_ctr, |
1549 | &tmp_xer, &tmp_fpscr); | |
0ec9f114 SM |
1550 | if (REG_VALID == regcache->get_register_status |
1551 | (gdbarch_pc_regnum (gdbarch))) | |
cbe92db4 | 1552 | ctx.iar = tmp_iar; |
0ec9f114 | 1553 | if (REG_VALID == regcache->get_register_status (tdep->ppc_ps_regnum)) |
cbe92db4 | 1554 | ctx.msr = tmp_msr; |
0ec9f114 | 1555 | if (REG_VALID == regcache->get_register_status (tdep->ppc_cr_regnum)) |
cbe92db4 | 1556 | ctx.cr = tmp_cr; |
0ec9f114 | 1557 | if (REG_VALID == regcache->get_register_status (tdep->ppc_lr_regnum)) |
cbe92db4 | 1558 | ctx.lr = tmp_lr; |
0ec9f114 | 1559 | if (REG_VALID == regcache->get_register_status (tdep->ppc_ctr_regnum)) |
cbe92db4 | 1560 | ctx.ctr = tmp_ctr; |
0ec9f114 | 1561 | if (REG_VALID == regcache->get_register_status (tdep->ppc_xer_regnum)) |
cbe92db4 | 1562 | ctx.xer = tmp_xer; |
0ec9f114 | 1563 | if (REG_VALID == regcache->get_register_status (tdep->ppc_xer_regnum)) |
0e061eef | 1564 | ctx.fpscr = tmp_fpscr; |
61c5da0b | 1565 | } |
c11d79f2 KB |
1566 | |
1567 | status = pthdb_pthread_setcontext (pd_session, pdtid, &ctx); | |
1568 | if (status != PTHDB_SUCCESS) | |
0963b4bd MS |
1569 | error (_("aix-thread: store_registers: " |
1570 | "pthdb_pthread_setcontext returned %s"), | |
14fa3751 | 1571 | pd_status2str (status)); |
c11d79f2 KB |
1572 | } |
1573 | ||
0fe7bf7b MS |
1574 | /* Store register REGNO if != -1 or all registers otherwise into |
1575 | kernel thread TID. | |
c11d79f2 | 1576 | |
0fe7bf7b MS |
1577 | AIX provides a way to set all of a kernel thread's GPRs, FPRs, or |
1578 | SPRs, but there's no way to set individual registers within those | |
1579 | groups. Therefore, if REGNO != -1, this function stores an entire | |
1580 | group. */ | |
c11d79f2 KB |
1581 | |
1582 | static void | |
647478e0 UW |
1583 | store_regs_kernel_thread (const struct regcache *regcache, int regno, |
1584 | pthdb_tid_t tid) | |
c11d79f2 | 1585 | { |
ac7936df | 1586 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1587 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
063715bf JB |
1588 | uint64_t gprs64[ppc_num_gprs]; |
1589 | uint32_t gprs32[ppc_num_gprs]; | |
1590 | double fprs[ppc_num_fprs]; | |
c11d79f2 | 1591 | struct ptxsprs sprs64; |
61c5da0b | 1592 | struct ptsprs sprs32; |
c11d79f2 | 1593 | |
8e2c28d4 | 1594 | if (debug_aix_thread) |
206d3d3c KB |
1595 | fprintf_unfiltered (gdb_stdlog, |
1596 | "store_regs_kernel_thread tid=%lx regno=%d\n", | |
1597 | (long) tid, regno); | |
c11d79f2 | 1598 | |
0fe7bf7b | 1599 | /* General-purpose registers. */ |
daf6dc85 JB |
1600 | if (regno == -1 |
1601 | || (tdep->ppc_gp0_regnum <= regno | |
1602 | && regno < tdep->ppc_gp0_regnum + ppc_num_fprs)) | |
c11d79f2 | 1603 | { |
c11d79f2 | 1604 | if (arch64) |
61c5da0b | 1605 | { |
cbe92db4 KB |
1606 | /* Pre-fetch: some regs may not be in the cache. */ |
1607 | ptrace64aix (PTT_READ_GPRS, tid, (unsigned long) gprs64, 0, NULL); | |
647478e0 | 1608 | fill_gprs64 (regcache, gprs64); |
61c5da0b KB |
1609 | ptrace64aix (PTT_WRITE_GPRS, tid, (unsigned long) gprs64, 0, NULL); |
1610 | } | |
c11d79f2 | 1611 | else |
61c5da0b | 1612 | { |
cbe92db4 | 1613 | /* Pre-fetch: some regs may not be in the cache. */ |
3b631e37 | 1614 | ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL); |
647478e0 | 1615 | fill_gprs32 (regcache, gprs32); |
3b631e37 | 1616 | ptrace32 (PTT_WRITE_GPRS, tid, (uintptr_t) gprs32, 0, NULL); |
61c5da0b | 1617 | } |
c11d79f2 KB |
1618 | } |
1619 | ||
0fe7bf7b | 1620 | /* Floating-point registers. */ |
c11d79f2 | 1621 | |
c7f30c7a | 1622 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1623 | && (regno == -1 |
1624 | || (regno >= tdep->ppc_fp0_regnum | |
1625 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 | 1626 | { |
cbe92db4 | 1627 | /* Pre-fetch: some regs may not be in the cache. */ |
3b631e37 | 1628 | ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL); |
647478e0 | 1629 | fill_fprs (regcache, fprs); |
3b631e37 | 1630 | ptrace32 (PTT_WRITE_FPRS, tid, (uintptr_t) fprs, 0, NULL); |
c11d79f2 KB |
1631 | } |
1632 | ||
0fe7bf7b | 1633 | /* Special-purpose registers. */ |
c11d79f2 | 1634 | |
9970f04b | 1635 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1636 | { |
1637 | if (arch64) | |
1638 | { | |
cbe92db4 | 1639 | /* Pre-fetch: some registers won't be in the cache. */ |
0fe7bf7b MS |
1640 | ptrace64aix (PTT_READ_SPRS, tid, |
1641 | (unsigned long) &sprs64, 0, NULL); | |
647478e0 UW |
1642 | fill_sprs64 (regcache, &sprs64.pt_iar, &sprs64.pt_msr, |
1643 | &sprs64.pt_cr, &sprs64.pt_lr, &sprs64.pt_ctr, | |
1644 | &sprs64.pt_xer, &sprs64.pt_fpscr); | |
0fe7bf7b MS |
1645 | ptrace64aix (PTT_WRITE_SPRS, tid, |
1646 | (unsigned long) &sprs64, 0, NULL); | |
c11d79f2 KB |
1647 | } |
1648 | else | |
1649 | { | |
0d16ee5d UW |
1650 | /* The contents of "struct ptspr" were declared as "unsigned |
1651 | long" up to AIX 5.2, but are "unsigned int" since 5.3. | |
1652 | Use temporaries to work around this problem. Also, add an | |
1653 | assert here to make sure we fail if the system header files | |
1654 | use "unsigned long", and the size of that type is not what | |
1655 | the headers expect. */ | |
1656 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1657 | tmp_fpscr; | |
1658 | ||
1659 | gdb_assert (sizeof (sprs32.pt_iar) == 4); | |
1660 | ||
cbe92db4 | 1661 | /* Pre-fetch: some registers won't be in the cache. */ |
3b631e37 | 1662 | ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL); |
c11d79f2 | 1663 | |
647478e0 UW |
1664 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, |
1665 | &tmp_ctr, &tmp_xer, &tmp_fpscr); | |
0d16ee5d UW |
1666 | |
1667 | sprs32.pt_iar = tmp_iar; | |
1668 | sprs32.pt_msr = tmp_msr; | |
1669 | sprs32.pt_cr = tmp_cr; | |
1670 | sprs32.pt_lr = tmp_lr; | |
1671 | sprs32.pt_ctr = tmp_ctr; | |
1672 | sprs32.pt_xer = tmp_xer; | |
1673 | sprs32.pt_fpscr = tmp_fpscr; | |
c11d79f2 | 1674 | |
f1a91342 | 1675 | if (tdep->ppc_mq_regnum >= 0) |
0ec9f114 SM |
1676 | if (REG_VALID == regcache->get_register_status |
1677 | (tdep->ppc_mq_regnum)) | |
34a79281 | 1678 | regcache->raw_collect (tdep->ppc_mq_regnum, &sprs32.pt_mq); |
c11d79f2 | 1679 | |
3b631e37 | 1680 | ptrace32 (PTT_WRITE_SPRS, tid, (uintptr_t) &sprs32, 0, NULL); |
c11d79f2 KB |
1681 | } |
1682 | } | |
1683 | } | |
1684 | ||
0fe7bf7b | 1685 | /* Store gdb's current view of the register set into the |
edb5fb00 | 1686 | thread/process connected to REGCACHE. */ |
c11d79f2 | 1687 | |
f6ac5f3d PA |
1688 | void |
1689 | aix_thread_target::store_registers (struct regcache *regcache, int regno) | |
c11d79f2 KB |
1690 | { |
1691 | struct thread_info *thread; | |
1692 | pthdb_tid_t tid; | |
1693 | ||
222312d3 | 1694 | if (!PD_TID (regcache->ptid ())) |
d6ca69cd | 1695 | beneath ()->store_registers (regcache, regno); |
c11d79f2 KB |
1696 | else |
1697 | { | |
222312d3 | 1698 | thread = find_thread_ptid (regcache->ptid ()); |
7aabaf9d SM |
1699 | aix_thread_info *priv = get_aix_thread_info (thread); |
1700 | tid = priv->tid; | |
c11d79f2 KB |
1701 | |
1702 | if (tid == PTHDB_INVALID_TID) | |
7aabaf9d | 1703 | store_regs_user_thread (regcache, priv->pdtid); |
c11d79f2 | 1704 | else |
56be3814 | 1705 | store_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1706 | } |
1707 | } | |
1708 | ||
edcc890f | 1709 | /* Implement the to_xfer_partial target_ops method. */ |
037a727e | 1710 | |
f6ac5f3d PA |
1711 | enum target_xfer_status |
1712 | aix_thread_target::xfer_partial (enum target_object object, | |
1713 | const char *annex, gdb_byte *readbuf, | |
1714 | const gdb_byte *writebuf, | |
1715 | ULONGEST offset, ULONGEST len, | |
1716 | ULONGEST *xfered_len) | |
c11d79f2 | 1717 | { |
2989a365 | 1718 | scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid); |
14fa3751 | 1719 | |
e99b03dc | 1720 | inferior_ptid = ptid_t (inferior_ptid.pid ()); |
d6ca69cd PA |
1721 | return beneath ()->xfer_partial (object, annex, readbuf, |
1722 | writebuf, offset, len, xfered_len); | |
c11d79f2 KB |
1723 | } |
1724 | ||
0fe7bf7b | 1725 | /* Clean up after the inferior exits. */ |
c11d79f2 | 1726 | |
f6ac5f3d PA |
1727 | void |
1728 | aix_thread_target::mourn_inferior () | |
c11d79f2 | 1729 | { |
b9a3c020 | 1730 | target_ops *beneath = this->beneath (); |
d30acaa7 | 1731 | |
c11d79f2 | 1732 | pd_deactivate (); |
f6ac5f3d | 1733 | beneath->mourn_inferior (); |
c11d79f2 KB |
1734 | } |
1735 | ||
0fe7bf7b | 1736 | /* Return whether thread PID is still valid. */ |
c11d79f2 | 1737 | |
57810aa7 | 1738 | bool |
f6ac5f3d | 1739 | aix_thread_target::thread_alive (ptid_t ptid) |
c11d79f2 KB |
1740 | { |
1741 | if (!PD_TID (ptid)) | |
d6ca69cd | 1742 | return beneath ()->thread_alive (ptid); |
c11d79f2 | 1743 | |
0fe7bf7b MS |
1744 | /* We update the thread list every time the child stops, so all |
1745 | valid threads should be in the thread list. */ | |
c11d79f2 KB |
1746 | return in_thread_list (ptid); |
1747 | } | |
1748 | ||
0fe7bf7b MS |
1749 | /* Return a printable representation of composite PID for use in |
1750 | "info threads" output. */ | |
c11d79f2 | 1751 | |
a068643d | 1752 | std::string |
f6ac5f3d | 1753 | aix_thread_target::pid_to_str (ptid_t ptid) |
c11d79f2 | 1754 | { |
c11d79f2 | 1755 | if (!PD_TID (ptid)) |
d6ca69cd | 1756 | return beneath ()->pid_to_str (ptid); |
c11d79f2 | 1757 | |
a068643d | 1758 | return string_printf (_("Thread %ld"), ptid.tid ()); |
c11d79f2 KB |
1759 | } |
1760 | ||
0fe7bf7b MS |
1761 | /* Return a printable representation of extra information about |
1762 | THREAD, for use in "info threads" output. */ | |
c11d79f2 | 1763 | |
f6ac5f3d PA |
1764 | const char * |
1765 | aix_thread_target::extra_thread_info (struct thread_info *thread) | |
c11d79f2 | 1766 | { |
c11d79f2 KB |
1767 | int status; |
1768 | pthdb_pthread_t pdtid; | |
1769 | pthdb_tid_t tid; | |
1770 | pthdb_state_t state; | |
1771 | pthdb_suspendstate_t suspendstate; | |
1772 | pthdb_detachstate_t detachstate; | |
1773 | int cancelpend; | |
c11d79f2 KB |
1774 | static char *ret = NULL; |
1775 | ||
1776 | if (!PD_TID (thread->ptid)) | |
1777 | return NULL; | |
1778 | ||
d7e74731 | 1779 | string_file buf; |
7aabaf9d | 1780 | aix_thread_info *priv = get_aix_thread_info (thread); |
c11d79f2 | 1781 | |
7aabaf9d SM |
1782 | pdtid = priv->pdtid; |
1783 | tid = priv->tid; | |
c11d79f2 KB |
1784 | |
1785 | if (tid != PTHDB_INVALID_TID) | |
edefbb7c | 1786 | /* i18n: Like "thread-identifier %d, [state] running, suspended" */ |
d7e74731 | 1787 | buf.printf (_("tid %d"), (int)tid); |
c11d79f2 KB |
1788 | |
1789 | status = pthdb_pthread_state (pd_session, pdtid, &state); | |
1790 | if (status != PTHDB_SUCCESS) | |
1791 | state = PST_NOTSUP; | |
d7e74731 | 1792 | buf.printf (", %s", state2str (state)); |
c11d79f2 | 1793 | |
0fe7bf7b MS |
1794 | status = pthdb_pthread_suspendstate (pd_session, pdtid, |
1795 | &suspendstate); | |
c11d79f2 | 1796 | if (status == PTHDB_SUCCESS && suspendstate == PSS_SUSPENDED) |
edefbb7c | 1797 | /* i18n: Like "Thread-Id %d, [state] running, suspended" */ |
d7e74731 | 1798 | buf.printf (_(", suspended")); |
c11d79f2 | 1799 | |
0fe7bf7b MS |
1800 | status = pthdb_pthread_detachstate (pd_session, pdtid, |
1801 | &detachstate); | |
c11d79f2 | 1802 | if (status == PTHDB_SUCCESS && detachstate == PDS_DETACHED) |
edefbb7c | 1803 | /* i18n: Like "Thread-Id %d, [state] running, detached" */ |
d7e74731 | 1804 | buf.printf (_(", detached")); |
c11d79f2 KB |
1805 | |
1806 | pthdb_pthread_cancelpend (pd_session, pdtid, &cancelpend); | |
1807 | if (status == PTHDB_SUCCESS && cancelpend) | |
edefbb7c | 1808 | /* i18n: Like "Thread-Id %d, [state] running, cancel pending" */ |
d7e74731 | 1809 | buf.printf (_(", cancel pending")); |
c11d79f2 | 1810 | |
d7e74731 | 1811 | buf.write ("", 1); |
c11d79f2 KB |
1812 | |
1813 | xfree (ret); /* Free old buffer. */ | |
1814 | ||
d7e74731 | 1815 | ret = xstrdup (buf.c_str ()); |
c11d79f2 KB |
1816 | |
1817 | return ret; | |
1818 | } | |
1819 | ||
f6ac5f3d PA |
1820 | ptid_t |
1821 | aix_thread_target::get_ada_task_ptid (long lwp, long thread) | |
c7660128 | 1822 | { |
e99b03dc | 1823 | return ptid_t (inferior_ptid.pid (), 0, thread); |
c7660128 JB |
1824 | } |
1825 | ||
c11d79f2 KB |
1826 | |
1827 | /* Module startup initialization function, automagically called by | |
0fe7bf7b | 1828 | init.c. */ |
c11d79f2 KB |
1829 | |
1830 | void | |
1831 | _initialize_aix_thread (void) | |
1832 | { | |
0fe7bf7b | 1833 | /* Notice when object files get loaded and unloaded. */ |
76727919 | 1834 | gdb::observers::new_objfile.attach (new_objfile); |
8e2c28d4 | 1835 | |
b3ccfe11 TT |
1836 | /* Add ourselves to inferior_created event chain. |
1837 | This is needed to enable the thread target on "attach". */ | |
76727919 | 1838 | gdb::observers::inferior_created.attach (aix_thread_inferior_created); |
b3ccfe11 | 1839 | |
577b7047 | 1840 | add_setshow_boolean_cmd ("aix-thread", class_maintenance, &debug_aix_thread, |
0963b4bd MS |
1841 | _("Set debugging of AIX thread module."), |
1842 | _("Show debugging of AIX thread module."), | |
1843 | _("Enables debugging output (used to debug GDB)."), | |
1844 | NULL, NULL, | |
1845 | /* FIXME: i18n: Debugging of AIX thread | |
1846 | module is \"%d\". */ | |
1847 | &setdebuglist, &showdebuglist); | |
c11d79f2 | 1848 | } |