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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 | |
d9f719f1 PA |
111 | static const target_info aix_thread_target_info = { |
112 | "aix-threads", | |
113 | N_("AIX pthread support"), | |
114 | N_("AIX pthread support") | |
115 | }; | |
116 | ||
f6ac5f3d PA |
117 | class aix_thread_target final : public target_ops |
118 | { | |
119 | public: | |
120 | aix_thread_target () | |
121 | { to_stratum = thread_stratum; } | |
122 | ||
d9f719f1 PA |
123 | const target_info &info () const override |
124 | { return aix_thread_target_info; } | |
f6ac5f3d PA |
125 | |
126 | void detach (inferior *, int) override; | |
127 | void resume (ptid_t, int, enum gdb_signal) override; | |
128 | ptid_t wait (ptid_t, struct target_waitstatus *, int) override; | |
129 | ||
130 | void fetch_registers (struct regcache *, int) override; | |
131 | void store_registers (struct regcache *, int) override; | |
132 | ||
133 | enum target_xfer_status xfer_partial (enum target_object object, | |
134 | const char *annex, | |
135 | gdb_byte *readbuf, | |
136 | const gdb_byte *writebuf, | |
137 | ULONGEST offset, ULONGEST len, | |
138 | ULONGEST *xfered_len) override; | |
139 | ||
140 | void mourn_inferior () override; | |
141 | ||
57810aa7 | 142 | bool thread_alive (ptid_t ptid) override; |
f6ac5f3d PA |
143 | |
144 | const char *pid_to_str (ptid_t) override; | |
145 | ||
146 | const char *extra_thread_info (struct thread_info *) override; | |
147 | ||
148 | ptid_t get_ada_task_ptid (long lwp, long thread) override; | |
149 | }; | |
150 | ||
151 | static aix_thread_target aix_thread_ops; | |
c11d79f2 | 152 | |
0fe7bf7b MS |
153 | /* Address of the function that libpthread will call when libpthdebug |
154 | is ready to be initialized. */ | |
c11d79f2 KB |
155 | |
156 | static CORE_ADDR pd_brk_addr; | |
157 | ||
0fe7bf7b | 158 | /* Whether the current application is debuggable by pthdb. */ |
c11d79f2 KB |
159 | |
160 | static int pd_able = 0; | |
161 | ||
0fe7bf7b | 162 | /* Whether a threaded application is being debugged. */ |
c11d79f2 KB |
163 | |
164 | static int pd_active = 0; | |
165 | ||
0fe7bf7b MS |
166 | /* Whether the current architecture is 64-bit. |
167 | Only valid when pd_able is true. */ | |
c11d79f2 KB |
168 | |
169 | static int arch64; | |
170 | ||
0fe7bf7b | 171 | /* Forward declarations for pthdb callbacks. */ |
c11d79f2 KB |
172 | |
173 | static int pdc_symbol_addrs (pthdb_user_t, pthdb_symbol_t *, int); | |
174 | static int pdc_read_data (pthdb_user_t, void *, pthdb_addr_t, size_t); | |
175 | static int pdc_write_data (pthdb_user_t, void *, pthdb_addr_t, size_t); | |
176 | static int pdc_read_regs (pthdb_user_t user, pthdb_tid_t tid, | |
0fe7bf7b MS |
177 | unsigned long long flags, |
178 | pthdb_context_t *context); | |
c11d79f2 | 179 | static int pdc_write_regs (pthdb_user_t user, pthdb_tid_t tid, |
0fe7bf7b MS |
180 | unsigned long long flags, |
181 | pthdb_context_t *context); | |
c11d79f2 KB |
182 | static int pdc_alloc (pthdb_user_t, size_t, void **); |
183 | static int pdc_realloc (pthdb_user_t, void *, size_t, void **); | |
184 | static int pdc_dealloc (pthdb_user_t, void *); | |
185 | ||
0fe7bf7b | 186 | /* pthdb callbacks. */ |
c11d79f2 KB |
187 | |
188 | static pthdb_callbacks_t pd_callbacks = { | |
189 | pdc_symbol_addrs, | |
190 | pdc_read_data, | |
191 | pdc_write_data, | |
192 | pdc_read_regs, | |
193 | pdc_write_regs, | |
194 | pdc_alloc, | |
195 | pdc_realloc, | |
196 | pdc_dealloc, | |
197 | NULL | |
198 | }; | |
199 | ||
0fe7bf7b | 200 | /* Current pthdb session. */ |
c11d79f2 KB |
201 | |
202 | static pthdb_session_t pd_session; | |
203 | ||
0fe7bf7b MS |
204 | /* Return a printable representation of pthdebug function return |
205 | STATUS. */ | |
c11d79f2 | 206 | |
0a31ccfb | 207 | static const char * |
c11d79f2 KB |
208 | pd_status2str (int status) |
209 | { | |
210 | switch (status) | |
211 | { | |
212 | case PTHDB_SUCCESS: return "SUCCESS"; | |
213 | case PTHDB_NOSYS: return "NOSYS"; | |
214 | case PTHDB_NOTSUP: return "NOTSUP"; | |
215 | case PTHDB_BAD_VERSION: return "BAD_VERSION"; | |
216 | case PTHDB_BAD_USER: return "BAD_USER"; | |
217 | case PTHDB_BAD_SESSION: return "BAD_SESSION"; | |
218 | case PTHDB_BAD_MODE: return "BAD_MODE"; | |
219 | case PTHDB_BAD_FLAGS: return "BAD_FLAGS"; | |
220 | case PTHDB_BAD_CALLBACK: return "BAD_CALLBACK"; | |
221 | case PTHDB_BAD_POINTER: return "BAD_POINTER"; | |
222 | case PTHDB_BAD_CMD: return "BAD_CMD"; | |
223 | case PTHDB_BAD_PTHREAD: return "BAD_PTHREAD"; | |
224 | case PTHDB_BAD_ATTR: return "BAD_ATTR"; | |
225 | case PTHDB_BAD_MUTEX: return "BAD_MUTEX"; | |
226 | case PTHDB_BAD_MUTEXATTR: return "BAD_MUTEXATTR"; | |
227 | case PTHDB_BAD_COND: return "BAD_COND"; | |
228 | case PTHDB_BAD_CONDATTR: return "BAD_CONDATTR"; | |
229 | case PTHDB_BAD_RWLOCK: return "BAD_RWLOCK"; | |
230 | case PTHDB_BAD_RWLOCKATTR: return "BAD_RWLOCKATTR"; | |
231 | case PTHDB_BAD_KEY: return "BAD_KEY"; | |
232 | case PTHDB_BAD_PTID: return "BAD_PTID"; | |
233 | case PTHDB_BAD_TID: return "BAD_TID"; | |
234 | case PTHDB_CALLBACK: return "CALLBACK"; | |
235 | case PTHDB_CONTEXT: return "CONTEXT"; | |
236 | case PTHDB_HELD: return "HELD"; | |
237 | case PTHDB_NOT_HELD: return "NOT_HELD"; | |
238 | case PTHDB_MEMORY: return "MEMORY"; | |
239 | case PTHDB_NOT_PTHREADED: return "NOT_PTHREADED"; | |
240 | case PTHDB_SYMBOL: return "SYMBOL"; | |
241 | case PTHDB_NOT_AVAIL: return "NOT_AVAIL"; | |
242 | case PTHDB_INTERNAL: return "INTERNAL"; | |
243 | default: return "UNKNOWN"; | |
244 | } | |
245 | } | |
246 | ||
0fe7bf7b MS |
247 | /* A call to ptrace(REQ, ID, ...) just returned RET. Check for |
248 | exceptional conditions and either return nonlocally or else return | |
249 | 1 for success and 0 for failure. */ | |
c11d79f2 KB |
250 | |
251 | static int | |
252 | ptrace_check (int req, int id, int ret) | |
253 | { | |
254 | if (ret == 0 && !errno) | |
255 | return 1; | |
256 | ||
0fe7bf7b MS |
257 | /* According to ptrace(2), ptrace may fail with EPERM if "the |
258 | Identifier parameter corresponds to a kernel thread which is | |
259 | stopped in kernel mode and whose computational state cannot be | |
260 | read or written." This happens quite often with register reads. */ | |
c11d79f2 KB |
261 | |
262 | switch (req) | |
263 | { | |
264 | case PTT_READ_GPRS: | |
265 | case PTT_READ_FPRS: | |
266 | case PTT_READ_SPRS: | |
267 | if (ret == -1 && errno == EPERM) | |
42cc437f KB |
268 | { |
269 | if (debug_aix_thread) | |
0fe7bf7b | 270 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 271 | "ptrace (%d, %d) = %d (errno = %d)\n", |
42cc437f KB |
272 | req, id, ret, errno); |
273 | return ret == -1 ? 0 : 1; | |
274 | } | |
c11d79f2 KB |
275 | break; |
276 | } | |
edefbb7c | 277 | error (_("aix-thread: ptrace (%d, %d) returned %d (errno = %d %s)"), |
be006b8b | 278 | req, id, ret, errno, safe_strerror (errno)); |
0fe7bf7b | 279 | return 0; /* Not reached. */ |
c11d79f2 KB |
280 | } |
281 | ||
fecf803e UW |
282 | /* Call ptracex (REQ, ID, ADDR, DATA, BUF) or |
283 | ptrace64 (REQ, ID, ADDR, DATA, BUF) if HAVE_PTRACE64. | |
284 | Return success. */ | |
285 | ||
286 | #ifdef HAVE_PTRACE64 | |
287 | # define ptracex(request, pid, addr, data, buf) \ | |
288 | ptrace64 (request, pid, addr, data, buf) | |
289 | #endif | |
c11d79f2 KB |
290 | |
291 | static int | |
292 | ptrace64aix (int req, int id, long long addr, int data, int *buf) | |
293 | { | |
294 | errno = 0; | |
295 | return ptrace_check (req, id, ptracex (req, id, addr, data, buf)); | |
296 | } | |
297 | ||
fecf803e UW |
298 | /* Call ptrace (REQ, ID, ADDR, DATA, BUF) or |
299 | ptrace64 (REQ, ID, ADDR, DATA, BUF) if HAVE_PTRACE64. | |
300 | Return success. */ | |
301 | ||
302 | #ifdef HAVE_PTRACE64 | |
303 | # define ptrace(request, pid, addr, data, buf) \ | |
304 | ptrace64 (request, pid, addr, data, buf) | |
305 | # define addr_ptr long long | |
306 | #else | |
307 | # define addr_ptr int * | |
308 | #endif | |
c11d79f2 KB |
309 | |
310 | static int | |
fecf803e | 311 | ptrace32 (int req, int id, addr_ptr addr, int data, int *buf) |
c11d79f2 KB |
312 | { |
313 | errno = 0; | |
0fe7bf7b | 314 | return ptrace_check (req, id, |
26f0edc1 | 315 | ptrace (req, id, addr, data, buf)); |
c11d79f2 KB |
316 | } |
317 | ||
0fe7bf7b MS |
318 | /* If *PIDP is a composite process/thread id, convert it to a |
319 | process id. */ | |
c11d79f2 KB |
320 | |
321 | static void | |
322 | pid_to_prc (ptid_t *ptidp) | |
323 | { | |
324 | ptid_t ptid; | |
325 | ||
326 | ptid = *ptidp; | |
327 | if (PD_TID (ptid)) | |
dfd4cc63 | 328 | *ptidp = pid_to_ptid (ptid_get_pid (ptid)); |
c11d79f2 KB |
329 | } |
330 | ||
0fe7bf7b MS |
331 | /* pthdb callback: for <i> from 0 to COUNT, set SYMBOLS[<i>].addr to |
332 | the address of SYMBOLS[<i>].name. */ | |
c11d79f2 KB |
333 | |
334 | static int | |
335 | pdc_symbol_addrs (pthdb_user_t user, pthdb_symbol_t *symbols, int count) | |
336 | { | |
3b7344d5 | 337 | struct bound_minimal_symbol ms; |
c11d79f2 KB |
338 | int i; |
339 | char *name; | |
340 | ||
8e2c28d4 KB |
341 | if (debug_aix_thread) |
342 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 343 | "pdc_symbol_addrs (user = %ld, symbols = 0x%lx, count = %d)\n", |
8e2c28d4 | 344 | user, (long) symbols, count); |
c11d79f2 KB |
345 | |
346 | for (i = 0; i < count; i++) | |
347 | { | |
348 | name = symbols[i].name; | |
8e2c28d4 | 349 | if (debug_aix_thread) |
0fe7bf7b | 350 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 351 | " symbols[%d].name = \"%s\"\n", i, name); |
c11d79f2 KB |
352 | |
353 | if (!*name) | |
354 | symbols[i].addr = 0; | |
355 | else | |
356 | { | |
3b7344d5 TT |
357 | ms = lookup_minimal_symbol (name, NULL, NULL); |
358 | if (ms.minsym == NULL) | |
c11d79f2 | 359 | { |
8e2c28d4 | 360 | if (debug_aix_thread) |
27bae383 | 361 | fprintf_unfiltered (gdb_stdlog, " returning PDC_FAILURE\n"); |
c11d79f2 KB |
362 | return PDC_FAILURE; |
363 | } | |
77e371c0 | 364 | symbols[i].addr = BMSYMBOL_VALUE_ADDRESS (ms); |
c11d79f2 | 365 | } |
8e2c28d4 | 366 | if (debug_aix_thread) |
27bae383 | 367 | fprintf_unfiltered (gdb_stdlog, " symbols[%d].addr = %s\n", |
bb599908 | 368 | i, hex_string (symbols[i].addr)); |
c11d79f2 | 369 | } |
8e2c28d4 | 370 | if (debug_aix_thread) |
27bae383 | 371 | fprintf_unfiltered (gdb_stdlog, " returning PDC_SUCCESS\n"); |
c11d79f2 KB |
372 | return PDC_SUCCESS; |
373 | } | |
374 | ||
0fe7bf7b MS |
375 | /* Read registers call back function should be able to read the |
376 | context information of a debuggee kernel thread from an active | |
377 | process or from a core file. The information should be formatted | |
378 | in context64 form for both 32-bit and 64-bit process. | |
379 | If successful return 0, else non-zero is returned. */ | |
380 | ||
c11d79f2 KB |
381 | static int |
382 | pdc_read_regs (pthdb_user_t user, | |
383 | pthdb_tid_t tid, | |
384 | unsigned long long flags, | |
385 | pthdb_context_t *context) | |
386 | { | |
0fe7bf7b MS |
387 | /* This function doesn't appear to be used, so we could probably |
388 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
389 | complain and several thread debug functions will fail. In case | |
390 | this is needed, I have implemented what I think it should do, | |
391 | however this code is untested. */ | |
392 | ||
063715bf JB |
393 | uint64_t gprs64[ppc_num_gprs]; |
394 | uint32_t gprs32[ppc_num_gprs]; | |
395 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
396 | struct ptxsprs sprs64; |
397 | struct ptsprs sprs32; | |
398 | ||
8e2c28d4 | 399 | if (debug_aix_thread) |
27bae383 | 400 | fprintf_unfiltered (gdb_stdlog, "pdc_read_regs tid=%d flags=%s\n", |
bb599908 | 401 | (int) tid, hex_string (flags)); |
c11d79f2 | 402 | |
0fe7bf7b | 403 | /* General-purpose registers. */ |
c11d79f2 KB |
404 | if (flags & PTHDB_FLAG_GPRS) |
405 | { | |
406 | if (arch64) | |
407 | { | |
0fe7bf7b MS |
408 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
409 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 KB |
410 | memset (gprs64, 0, sizeof (gprs64)); |
411 | memcpy (context->gpr, gprs64, sizeof(gprs64)); | |
412 | } | |
413 | else | |
414 | { | |
3b631e37 | 415 | if (!ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL)) |
c11d79f2 KB |
416 | memset (gprs32, 0, sizeof (gprs32)); |
417 | memcpy (context->gpr, gprs32, sizeof(gprs32)); | |
418 | } | |
419 | } | |
420 | ||
0fe7bf7b | 421 | /* Floating-point registers. */ |
c11d79f2 KB |
422 | if (flags & PTHDB_FLAG_FPRS) |
423 | { | |
3b631e37 | 424 | if (!ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL)) |
c11d79f2 | 425 | memset (fprs, 0, sizeof (fprs)); |
46bba1ef | 426 | memcpy (context->fpr, fprs, sizeof(fprs)); |
c11d79f2 KB |
427 | } |
428 | ||
0fe7bf7b | 429 | /* Special-purpose registers. */ |
c11d79f2 KB |
430 | if (flags & PTHDB_FLAG_SPRS) |
431 | { | |
432 | if (arch64) | |
433 | { | |
0fe7bf7b MS |
434 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
435 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 KB |
436 | memset (&sprs64, 0, sizeof (sprs64)); |
437 | memcpy (&context->msr, &sprs64, sizeof(sprs64)); | |
438 | } | |
439 | else | |
440 | { | |
3b631e37 | 441 | if (!ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL)) |
c11d79f2 KB |
442 | memset (&sprs32, 0, sizeof (sprs32)); |
443 | memcpy (&context->msr, &sprs32, sizeof(sprs32)); | |
444 | } | |
445 | } | |
446 | return 0; | |
447 | } | |
448 | ||
0fe7bf7b | 449 | /* Write register function should be able to write requested context |
0963b4bd | 450 | information to specified debuggee's kernel thread id. |
0fe7bf7b MS |
451 | If successful return 0, else non-zero is returned. */ |
452 | ||
c11d79f2 KB |
453 | static int |
454 | pdc_write_regs (pthdb_user_t user, | |
455 | pthdb_tid_t tid, | |
456 | unsigned long long flags, | |
457 | pthdb_context_t *context) | |
458 | { | |
0fe7bf7b MS |
459 | /* This function doesn't appear to be used, so we could probably |
460 | just return 0 here. HOWEVER, if it is not defined, the OS will | |
461 | complain and several thread debug functions will fail. In case | |
462 | this is needed, I have implemented what I think it should do, | |
463 | however this code is untested. */ | |
c11d79f2 | 464 | |
8e2c28d4 | 465 | if (debug_aix_thread) |
27bae383 | 466 | fprintf_unfiltered (gdb_stdlog, "pdc_write_regs tid=%d flags=%s\n", |
bb599908 | 467 | (int) tid, hex_string (flags)); |
c11d79f2 | 468 | |
0fe7bf7b | 469 | /* General-purpose registers. */ |
c11d79f2 KB |
470 | if (flags & PTHDB_FLAG_GPRS) |
471 | { | |
472 | if (arch64) | |
0fe7bf7b | 473 | ptrace64aix (PTT_WRITE_GPRS, tid, |
206d3d3c | 474 | (unsigned long) context->gpr, 0, NULL); |
c11d79f2 | 475 | else |
3b631e37 | 476 | ptrace32 (PTT_WRITE_GPRS, tid, (uintptr_t) context->gpr, 0, NULL); |
c11d79f2 KB |
477 | } |
478 | ||
0fe7bf7b | 479 | /* Floating-point registers. */ |
c11d79f2 KB |
480 | if (flags & PTHDB_FLAG_FPRS) |
481 | { | |
3b631e37 | 482 | ptrace32 (PTT_WRITE_FPRS, tid, (uintptr_t) context->fpr, 0, NULL); |
c11d79f2 KB |
483 | } |
484 | ||
0fe7bf7b | 485 | /* Special-purpose registers. */ |
c11d79f2 KB |
486 | if (flags & PTHDB_FLAG_SPRS) |
487 | { | |
488 | if (arch64) | |
489 | { | |
0fe7bf7b MS |
490 | ptrace64aix (PTT_WRITE_SPRS, tid, |
491 | (unsigned long) &context->msr, 0, NULL); | |
c11d79f2 KB |
492 | } |
493 | else | |
494 | { | |
3b631e37 | 495 | ptrace32 (PTT_WRITE_SPRS, tid, (uintptr_t) &context->msr, 0, NULL); |
c11d79f2 KB |
496 | } |
497 | } | |
498 | return 0; | |
499 | } | |
500 | ||
0fe7bf7b | 501 | /* pthdb callback: read LEN bytes from process ADDR into BUF. */ |
c11d79f2 KB |
502 | |
503 | static int | |
0fe7bf7b MS |
504 | pdc_read_data (pthdb_user_t user, void *buf, |
505 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
506 | { |
507 | int status, ret; | |
508 | ||
8e2c28d4 KB |
509 | if (debug_aix_thread) |
510 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 511 | "pdc_read_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 512 | user, (long) buf, hex_string (addr), len); |
c11d79f2 | 513 | |
71829b1a | 514 | status = target_read_memory (addr, (gdb_byte *) buf, len); |
c11d79f2 KB |
515 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; |
516 | ||
8e2c28d4 | 517 | if (debug_aix_thread) |
27bae383 | 518 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", |
0fe7bf7b | 519 | status, pd_status2str (ret)); |
c11d79f2 KB |
520 | return ret; |
521 | } | |
522 | ||
0fe7bf7b | 523 | /* pthdb callback: write LEN bytes from BUF to process ADDR. */ |
c11d79f2 KB |
524 | |
525 | static int | |
0fe7bf7b MS |
526 | pdc_write_data (pthdb_user_t user, void *buf, |
527 | pthdb_addr_t addr, size_t len) | |
c11d79f2 KB |
528 | { |
529 | int status, ret; | |
530 | ||
8e2c28d4 KB |
531 | if (debug_aix_thread) |
532 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 533 | "pdc_write_data (user = %ld, buf = 0x%lx, addr = %s, len = %ld)\n", |
bb599908 | 534 | user, (long) buf, hex_string (addr), len); |
c11d79f2 | 535 | |
71829b1a | 536 | status = target_write_memory (addr, (gdb_byte *) buf, len); |
c11d79f2 KB |
537 | ret = status == 0 ? PDC_SUCCESS : PDC_FAILURE; |
538 | ||
8e2c28d4 | 539 | if (debug_aix_thread) |
27bae383 | 540 | fprintf_unfiltered (gdb_stdlog, " status=%d, returning %s\n", status, |
8e2c28d4 | 541 | pd_status2str (ret)); |
c11d79f2 KB |
542 | return ret; |
543 | } | |
544 | ||
0fe7bf7b MS |
545 | /* pthdb callback: allocate a LEN-byte buffer and store a pointer to it |
546 | in BUFP. */ | |
c11d79f2 KB |
547 | |
548 | static int | |
549 | pdc_alloc (pthdb_user_t user, size_t len, void **bufp) | |
550 | { | |
8e2c28d4 KB |
551 | if (debug_aix_thread) |
552 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 553 | "pdc_alloc (user = %ld, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 554 | user, len, (long) bufp); |
c11d79f2 | 555 | *bufp = xmalloc (len); |
8e2c28d4 | 556 | if (debug_aix_thread) |
0fe7bf7b | 557 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 558 | " malloc returned 0x%lx\n", (long) *bufp); |
0fe7bf7b MS |
559 | |
560 | /* Note: xmalloc() can't return 0; therefore PDC_FAILURE will never | |
561 | be returned. */ | |
562 | ||
c11d79f2 KB |
563 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
564 | } | |
565 | ||
0fe7bf7b MS |
566 | /* pthdb callback: reallocate BUF, which was allocated by the alloc or |
567 | realloc callback, so that it contains LEN bytes, and store a | |
568 | pointer to the result in BUFP. */ | |
c11d79f2 KB |
569 | |
570 | static int | |
571 | pdc_realloc (pthdb_user_t user, void *buf, size_t len, void **bufp) | |
572 | { | |
8e2c28d4 KB |
573 | if (debug_aix_thread) |
574 | fprintf_unfiltered (gdb_stdlog, | |
27bae383 | 575 | "pdc_realloc (user = %ld, buf = 0x%lx, len = %ld, bufp = 0x%lx)\n", |
8e2c28d4 | 576 | user, (long) buf, len, (long) bufp); |
be006b8b | 577 | *bufp = xrealloc (buf, len); |
8e2c28d4 | 578 | if (debug_aix_thread) |
0fe7bf7b | 579 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 580 | " realloc returned 0x%lx\n", (long) *bufp); |
c11d79f2 KB |
581 | return *bufp ? PDC_SUCCESS : PDC_FAILURE; |
582 | } | |
583 | ||
0fe7bf7b MS |
584 | /* pthdb callback: free BUF, which was allocated by the alloc or |
585 | realloc callback. */ | |
c11d79f2 KB |
586 | |
587 | static int | |
588 | pdc_dealloc (pthdb_user_t user, void *buf) | |
589 | { | |
8e2c28d4 | 590 | if (debug_aix_thread) |
0fe7bf7b | 591 | fprintf_unfiltered (gdb_stdlog, |
27bae383 | 592 | "pdc_free (user = %ld, buf = 0x%lx)\n", user, |
8e2c28d4 | 593 | (long) buf); |
c11d79f2 KB |
594 | xfree (buf); |
595 | return PDC_SUCCESS; | |
596 | } | |
597 | ||
0fe7bf7b | 598 | /* Return a printable representation of pthread STATE. */ |
c11d79f2 KB |
599 | |
600 | static char * | |
601 | state2str (pthdb_state_t state) | |
602 | { | |
603 | switch (state) | |
604 | { | |
edefbb7c AC |
605 | case PST_IDLE: |
606 | /* i18n: Like "Thread-Id %d, [state] idle" */ | |
607 | return _("idle"); /* being created */ | |
608 | case PST_RUN: | |
609 | /* i18n: Like "Thread-Id %d, [state] running" */ | |
610 | return _("running"); /* running */ | |
611 | case PST_SLEEP: | |
612 | /* i18n: Like "Thread-Id %d, [state] sleeping" */ | |
613 | return _("sleeping"); /* awaiting an event */ | |
614 | case PST_READY: | |
615 | /* i18n: Like "Thread-Id %d, [state] ready" */ | |
616 | return _("ready"); /* runnable */ | |
617 | case PST_TERM: | |
618 | /* i18n: Like "Thread-Id %d, [state] finished" */ | |
619 | return _("finished"); /* awaiting a join/detach */ | |
620 | default: | |
621 | /* i18n: Like "Thread-Id %d, [state] unknown" */ | |
622 | return _("unknown"); | |
c11d79f2 KB |
623 | } |
624 | } | |
625 | ||
0fe7bf7b | 626 | /* qsort() comparison function for sorting pd_thread structs by pthid. */ |
c11d79f2 KB |
627 | |
628 | static int | |
629 | pcmp (const void *p1v, const void *p2v) | |
630 | { | |
631 | struct pd_thread *p1 = (struct pd_thread *) p1v; | |
632 | struct pd_thread *p2 = (struct pd_thread *) p2v; | |
633 | return p1->pthid < p2->pthid ? -1 : p1->pthid > p2->pthid; | |
634 | } | |
635 | ||
77f0be4e JB |
636 | /* iterate_over_threads() callback for counting GDB threads. |
637 | ||
638 | Do not count the main thread (whose tid is zero). This matches | |
639 | the list of threads provided by the pthreaddebug library, which | |
640 | does not include that main thread either, and thus allows us | |
641 | to compare the two lists. */ | |
c11d79f2 KB |
642 | |
643 | static int | |
644 | giter_count (struct thread_info *thread, void *countp) | |
645 | { | |
77f0be4e JB |
646 | if (PD_TID (thread->ptid)) |
647 | (*(int *) countp)++; | |
c11d79f2 KB |
648 | return 0; |
649 | } | |
650 | ||
77f0be4e JB |
651 | /* iterate_over_threads() callback for accumulating GDB thread pids. |
652 | ||
653 | Do not include the main thread (whose tid is zero). This matches | |
654 | the list of threads provided by the pthreaddebug library, which | |
655 | does not include that main thread either, and thus allows us | |
656 | to compare the two lists. */ | |
c11d79f2 KB |
657 | |
658 | static int | |
659 | giter_accum (struct thread_info *thread, void *bufp) | |
660 | { | |
77f0be4e JB |
661 | if (PD_TID (thread->ptid)) |
662 | { | |
663 | **(struct thread_info ***) bufp = thread; | |
664 | (*(struct thread_info ***) bufp)++; | |
665 | } | |
c11d79f2 KB |
666 | return 0; |
667 | } | |
668 | ||
669 | /* ptid comparison function */ | |
0fe7bf7b | 670 | |
c11d79f2 KB |
671 | static int |
672 | ptid_cmp (ptid_t ptid1, ptid_t ptid2) | |
673 | { | |
674 | int pid1, pid2; | |
675 | ||
676 | if (ptid_get_pid (ptid1) < ptid_get_pid (ptid2)) | |
677 | return -1; | |
678 | else if (ptid_get_pid (ptid1) > ptid_get_pid (ptid2)) | |
679 | return 1; | |
680 | else if (ptid_get_tid (ptid1) < ptid_get_tid (ptid2)) | |
681 | return -1; | |
682 | else if (ptid_get_tid (ptid1) > ptid_get_tid (ptid2)) | |
683 | return 1; | |
684 | else if (ptid_get_lwp (ptid1) < ptid_get_lwp (ptid2)) | |
685 | return -1; | |
686 | else if (ptid_get_lwp (ptid1) > ptid_get_lwp (ptid2)) | |
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 JB |
711 | int result = 0; |
712 | ||
9ad7bec7 JB |
713 | while (1) |
714 | { | |
dfd4cc63 | 715 | if (getthrds (ptid_get_pid (inferior_ptid), &thrinf, |
9ad7bec7 JB |
716 | sizeof (thrinf), &ktid, 1) != 1) |
717 | break; | |
718 | ||
719 | if (thrinf.ti_cursig == SIGTRAP) | |
720 | return thrinf.ti_tid; | |
721 | } | |
722 | ||
723 | /* Didn't find any thread stopped on a SIGTRAP signal. */ | |
724 | return 0; | |
725 | } | |
726 | ||
c11d79f2 KB |
727 | /* Synchronize GDB's thread list with libpthdebug's. |
728 | ||
729 | There are some benefits of doing this every time the inferior stops: | |
730 | ||
0fe7bf7b MS |
731 | - allows users to run thread-specific commands without needing to |
732 | run "info threads" first | |
c11d79f2 KB |
733 | |
734 | - helps pthdb_tid_pthread() work properly (see "libpthdebug | |
735 | peculiarities" at the top of this module) | |
736 | ||
0fe7bf7b MS |
737 | - simplifies the demands placed on libpthdebug, which seems to |
738 | have difficulty with certain call patterns */ | |
c11d79f2 KB |
739 | |
740 | static void | |
741 | sync_threadlists (void) | |
742 | { | |
743 | int cmd, status, infpid; | |
744 | int pcount, psize, pi, gcount, gi; | |
745 | struct pd_thread *pbuf; | |
746 | struct thread_info **gbuf, **g, *thread; | |
747 | pthdb_pthread_t pdtid; | |
748 | pthread_t pthid; | |
749 | pthdb_tid_t tid; | |
c11d79f2 | 750 | |
0fe7bf7b | 751 | /* Accumulate an array of libpthdebug threads sorted by pthread id. */ |
c11d79f2 KB |
752 | |
753 | pcount = 0; | |
754 | psize = 1; | |
8d749320 | 755 | pbuf = XNEWVEC (struct pd_thread, psize); |
c11d79f2 KB |
756 | |
757 | for (cmd = PTHDB_LIST_FIRST;; cmd = PTHDB_LIST_NEXT) | |
758 | { | |
759 | status = pthdb_pthread (pd_session, &pdtid, cmd); | |
760 | if (status != PTHDB_SUCCESS || pdtid == PTHDB_INVALID_PTHREAD) | |
761 | break; | |
762 | ||
763 | status = pthdb_pthread_ptid (pd_session, pdtid, &pthid); | |
764 | if (status != PTHDB_SUCCESS || pthid == PTHDB_INVALID_PTID) | |
765 | continue; | |
766 | ||
767 | if (pcount == psize) | |
768 | { | |
769 | psize *= 2; | |
0fe7bf7b MS |
770 | pbuf = (struct pd_thread *) xrealloc (pbuf, |
771 | psize * sizeof *pbuf); | |
c11d79f2 KB |
772 | } |
773 | pbuf[pcount].pdtid = pdtid; | |
774 | pbuf[pcount].pthid = pthid; | |
775 | pcount++; | |
776 | } | |
777 | ||
778 | for (pi = 0; pi < pcount; pi++) | |
779 | { | |
780 | status = pthdb_pthread_tid (pd_session, pbuf[pi].pdtid, &tid); | |
781 | if (status != PTHDB_SUCCESS) | |
782 | tid = PTHDB_INVALID_TID; | |
783 | pbuf[pi].tid = tid; | |
784 | } | |
785 | ||
786 | qsort (pbuf, pcount, sizeof *pbuf, pcmp); | |
787 | ||
0fe7bf7b | 788 | /* Accumulate an array of GDB threads sorted by pid. */ |
c11d79f2 KB |
789 | |
790 | gcount = 0; | |
791 | iterate_over_threads (giter_count, &gcount); | |
8d749320 | 792 | g = gbuf = XNEWVEC (struct thread_info *, gcount); |
c11d79f2 KB |
793 | iterate_over_threads (giter_accum, &g); |
794 | qsort (gbuf, gcount, sizeof *gbuf, gcmp); | |
795 | ||
0fe7bf7b | 796 | /* Apply differences between the two arrays to GDB's thread list. */ |
c11d79f2 | 797 | |
dfd4cc63 | 798 | infpid = ptid_get_pid (inferior_ptid); |
c11d79f2 KB |
799 | for (pi = gi = 0; pi < pcount || gi < gcount;) |
800 | { | |
c11d79f2 | 801 | if (pi == pcount) |
c11d79f2 | 802 | { |
42cc437f | 803 | delete_thread (gbuf[gi]->ptid); |
c11d79f2 KB |
804 | gi++; |
805 | } | |
42cc437f | 806 | else if (gi == gcount) |
c11d79f2 | 807 | { |
7aabaf9d SM |
808 | aix_thread_info *priv = new aix_thread_info; |
809 | priv->pdtid = pbuf[pi].pdtid; | |
810 | priv->tid = pbuf[pi].tid; | |
811 | ||
812 | thread = add_thread_with_info (ptid_t (infpid, 0, pbuf[pi].pthid), priv); | |
813 | ||
c11d79f2 KB |
814 | pi++; |
815 | } | |
42cc437f KB |
816 | else |
817 | { | |
818 | ptid_t pptid, gptid; | |
819 | int cmp_result; | |
820 | ||
dfd4cc63 | 821 | pptid = ptid_build (infpid, 0, pbuf[pi].pthid); |
42cc437f KB |
822 | gptid = gbuf[gi]->ptid; |
823 | pdtid = pbuf[pi].pdtid; | |
824 | tid = pbuf[pi].tid; | |
c11d79f2 | 825 | |
42cc437f KB |
826 | cmp_result = ptid_cmp (pptid, gptid); |
827 | ||
828 | if (cmp_result == 0) | |
829 | { | |
7aabaf9d SM |
830 | aix_thread_info *priv = get_aix_thread_info (gbuf[gi]); |
831 | ||
832 | priv->pdtid = pdtid; | |
833 | priv->tid = tid; | |
42cc437f KB |
834 | pi++; |
835 | gi++; | |
836 | } | |
837 | else if (cmp_result > 0) | |
838 | { | |
839 | delete_thread (gptid); | |
840 | gi++; | |
841 | } | |
842 | else | |
843 | { | |
844 | thread = add_thread (pptid); | |
7aabaf9d SM |
845 | |
846 | aix_thread_info *priv = new aix_thread_info; | |
847 | thread->priv.reset (priv); | |
848 | priv->pdtid = pdtid; | |
849 | priv->tid = tid; | |
42cc437f KB |
850 | pi++; |
851 | } | |
852 | } | |
c11d79f2 KB |
853 | } |
854 | ||
855 | xfree (pbuf); | |
856 | xfree (gbuf); | |
857 | } | |
858 | ||
9ad7bec7 JB |
859 | /* Iterate_over_threads() callback for locating a thread, using |
860 | the TID of its associated kernel thread. */ | |
c11d79f2 KB |
861 | |
862 | static int | |
9ad7bec7 | 863 | iter_tid (struct thread_info *thread, void *tidp) |
c11d79f2 | 864 | { |
9ad7bec7 | 865 | const pthdb_tid_t tid = *(pthdb_tid_t *)tidp; |
7aabaf9d | 866 | aix_thread_info *priv = get_aix_thread_info (thread); |
c11d79f2 | 867 | |
7aabaf9d | 868 | return priv->tid == tid; |
c11d79f2 KB |
869 | } |
870 | ||
0fe7bf7b MS |
871 | /* Synchronize libpthdebug's state with the inferior and with GDB, |
872 | generate a composite process/thread <pid> for the current thread, | |
873 | set inferior_ptid to <pid> if SET_INFPID, and return <pid>. */ | |
c11d79f2 KB |
874 | |
875 | static ptid_t | |
876 | pd_update (int set_infpid) | |
877 | { | |
878 | int status; | |
879 | ptid_t ptid; | |
9ad7bec7 JB |
880 | pthdb_tid_t tid; |
881 | struct thread_info *thread = NULL; | |
c11d79f2 KB |
882 | |
883 | if (!pd_active) | |
884 | return inferior_ptid; | |
885 | ||
886 | status = pthdb_session_update (pd_session); | |
887 | if (status != PTHDB_SUCCESS) | |
888 | return inferior_ptid; | |
889 | ||
890 | sync_threadlists (); | |
891 | ||
0fe7bf7b | 892 | /* Define "current thread" as one that just received a trap signal. */ |
c11d79f2 | 893 | |
9ad7bec7 JB |
894 | tid = get_signaled_thread (); |
895 | if (tid != 0) | |
896 | thread = iterate_over_threads (iter_tid, &tid); | |
c11d79f2 KB |
897 | if (!thread) |
898 | ptid = inferior_ptid; | |
899 | else | |
900 | { | |
901 | ptid = thread->ptid; | |
902 | if (set_infpid) | |
903 | inferior_ptid = ptid; | |
904 | } | |
905 | return ptid; | |
906 | } | |
907 | ||
0963b4bd | 908 | /* Try to start debugging threads in the current process. |
0fe7bf7b MS |
909 | If successful and SET_INFPID, set inferior_ptid to reflect the |
910 | current thread. */ | |
c11d79f2 KB |
911 | |
912 | static ptid_t | |
913 | pd_activate (int set_infpid) | |
914 | { | |
915 | int status; | |
916 | ||
917 | status = pthdb_session_init (PD_USER, arch64 ? PEM_64BIT : PEM_32BIT, | |
0fe7bf7b MS |
918 | PTHDB_FLAG_REGS, &pd_callbacks, |
919 | &pd_session); | |
c11d79f2 KB |
920 | if (status != PTHDB_SUCCESS) |
921 | { | |
922 | return inferior_ptid; | |
923 | } | |
924 | pd_active = 1; | |
925 | return pd_update (set_infpid); | |
926 | } | |
927 | ||
0fe7bf7b | 928 | /* Undo the effects of pd_activate(). */ |
c11d79f2 KB |
929 | |
930 | static void | |
931 | pd_deactivate (void) | |
932 | { | |
933 | if (!pd_active) | |
934 | return; | |
935 | pthdb_session_destroy (pd_session); | |
936 | ||
937 | pid_to_prc (&inferior_ptid); | |
938 | pd_active = 0; | |
939 | } | |
940 | ||
0fe7bf7b MS |
941 | /* An object file has just been loaded. Check whether the current |
942 | application is pthreaded, and if so, prepare for thread debugging. */ | |
c11d79f2 KB |
943 | |
944 | static void | |
945 | pd_enable (void) | |
946 | { | |
947 | int status; | |
948 | char *stub_name; | |
3b7344d5 | 949 | struct bound_minimal_symbol ms; |
c11d79f2 | 950 | |
0fe7bf7b | 951 | /* Don't initialize twice. */ |
c11d79f2 KB |
952 | if (pd_able) |
953 | return; | |
954 | ||
0fe7bf7b | 955 | /* Check application word size. */ |
f5656ead | 956 | arch64 = register_size (target_gdbarch (), 0) == 8; |
c11d79f2 | 957 | |
0fe7bf7b | 958 | /* Check whether the application is pthreaded. */ |
c11d79f2 | 959 | stub_name = NULL; |
0fe7bf7b MS |
960 | status = pthdb_session_pthreaded (PD_USER, PTHDB_FLAG_REGS, |
961 | &pd_callbacks, &stub_name); | |
f8bf5763 PM |
962 | if ((status != PTHDB_SUCCESS |
963 | && status != PTHDB_NOT_PTHREADED) || !stub_name) | |
c11d79f2 KB |
964 | return; |
965 | ||
0fe7bf7b | 966 | /* Set a breakpoint on the returned stub function. */ |
3b7344d5 TT |
967 | ms = lookup_minimal_symbol (stub_name, NULL, NULL); |
968 | if (ms.minsym == NULL) | |
c11d79f2 | 969 | return; |
77e371c0 | 970 | pd_brk_addr = BMSYMBOL_VALUE_ADDRESS (ms); |
f5656ead | 971 | if (!create_thread_event_breakpoint (target_gdbarch (), pd_brk_addr)) |
c11d79f2 KB |
972 | return; |
973 | ||
0fe7bf7b | 974 | /* Prepare for thread debugging. */ |
206d3d3c | 975 | push_target (&aix_thread_ops); |
c11d79f2 KB |
976 | pd_able = 1; |
977 | ||
0fe7bf7b MS |
978 | /* If we're debugging a core file or an attached inferior, the |
979 | pthread library may already have been initialized, so try to | |
980 | activate thread debugging. */ | |
c11d79f2 KB |
981 | pd_activate (1); |
982 | } | |
983 | ||
0fe7bf7b | 984 | /* Undo the effects of pd_enable(). */ |
c11d79f2 KB |
985 | |
986 | static void | |
987 | pd_disable (void) | |
988 | { | |
989 | if (!pd_able) | |
990 | return; | |
991 | if (pd_active) | |
992 | pd_deactivate (); | |
993 | pd_able = 0; | |
206d3d3c | 994 | unpush_target (&aix_thread_ops); |
c11d79f2 KB |
995 | } |
996 | ||
06d3b283 | 997 | /* new_objfile observer callback. |
c11d79f2 | 998 | |
0fe7bf7b MS |
999 | If OBJFILE is non-null, check whether a threaded application is |
1000 | being debugged, and if so, prepare for thread debugging. | |
c11d79f2 | 1001 | |
0fe7bf7b | 1002 | If OBJFILE is null, stop debugging threads. */ |
c11d79f2 KB |
1003 | |
1004 | static void | |
1005 | new_objfile (struct objfile *objfile) | |
1006 | { | |
1007 | if (objfile) | |
1008 | pd_enable (); | |
1009 | else | |
1010 | pd_disable (); | |
c11d79f2 KB |
1011 | } |
1012 | ||
0fe7bf7b | 1013 | /* Attach to process specified by ARGS. */ |
c11d79f2 KB |
1014 | |
1015 | static void | |
b3ccfe11 | 1016 | aix_thread_inferior_created (struct target_ops *ops, int from_tty) |
c11d79f2 | 1017 | { |
b3ccfe11 | 1018 | pd_enable (); |
c11d79f2 KB |
1019 | } |
1020 | ||
206d3d3c | 1021 | /* Detach from the process attached to by aix_thread_attach(). */ |
c11d79f2 | 1022 | |
f6ac5f3d PA |
1023 | void |
1024 | aix_thread_target::detach (inferior *inf, int from_tty) | |
c11d79f2 | 1025 | { |
f6ac5f3d | 1026 | struct target_ops *beneath = find_target_beneath (this); |
d30acaa7 | 1027 | |
6c0c456d | 1028 | pd_disable (); |
f6ac5f3d | 1029 | beneath->detach (inf, from_tty); |
c11d79f2 KB |
1030 | } |
1031 | ||
1032 | /* Tell the inferior process to continue running thread PID if != -1 | |
0fe7bf7b | 1033 | and all threads otherwise. */ |
c11d79f2 | 1034 | |
f6ac5f3d PA |
1035 | void |
1036 | aix_thread_target::resume (ptid_t ptid, int step, enum gdb_signal sig) | |
c11d79f2 KB |
1037 | { |
1038 | struct thread_info *thread; | |
1039 | pthdb_tid_t tid[2]; | |
1040 | ||
1041 | if (!PD_TID (ptid)) | |
14fa3751 | 1042 | { |
2989a365 | 1043 | scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid); |
f6ac5f3d | 1044 | struct target_ops *beneath = find_target_beneath (this); |
d30acaa7 | 1045 | |
dfd4cc63 | 1046 | inferior_ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); |
f6ac5f3d | 1047 | beneath->resume (ptid, step, sig); |
14fa3751 | 1048 | } |
c11d79f2 KB |
1049 | else |
1050 | { | |
e09875d4 | 1051 | thread = find_thread_ptid (ptid); |
c11d79f2 | 1052 | if (!thread) |
edefbb7c | 1053 | error (_("aix-thread resume: unknown pthread %ld"), |
dfd4cc63 | 1054 | ptid_get_lwp (ptid)); |
c11d79f2 | 1055 | |
7aabaf9d SM |
1056 | aix_thread_info *priv = get_aix_thread_info (thread); |
1057 | ||
1058 | tid[0] = priv->tid; | |
c11d79f2 | 1059 | if (tid[0] == PTHDB_INVALID_TID) |
edefbb7c | 1060 | error (_("aix-thread resume: no tid for pthread %ld"), |
dfd4cc63 | 1061 | ptid_get_lwp (ptid)); |
c11d79f2 KB |
1062 | tid[1] = 0; |
1063 | ||
1064 | if (arch64) | |
fecf803e | 1065 | ptrace64aix (PTT_CONTINUE, tid[0], (long long) 1, |
71829b1a | 1066 | gdb_signal_to_host (sig), (PTRACE_TYPE_ARG5) tid); |
c11d79f2 | 1067 | else |
fecf803e | 1068 | ptrace32 (PTT_CONTINUE, tid[0], (addr_ptr) 1, |
71829b1a | 1069 | gdb_signal_to_host (sig), (PTRACE_TYPE_ARG5) tid); |
c11d79f2 KB |
1070 | } |
1071 | } | |
1072 | ||
0fe7bf7b MS |
1073 | /* Wait for thread/process ID if != -1 or for any thread otherwise. |
1074 | If an error occurs, return -1, else return the pid of the stopped | |
1075 | thread. */ | |
c11d79f2 | 1076 | |
f6ac5f3d PA |
1077 | ptid_t |
1078 | aix_thread_target::wait (ptid_t ptid, struct target_waitstatus *status, | |
1079 | int options) | |
c11d79f2 | 1080 | { |
f6ac5f3d | 1081 | struct target_ops *beneath = find_target_beneath (this); |
14fa3751 | 1082 | |
2989a365 TT |
1083 | { |
1084 | scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid); | |
14fa3751 | 1085 | |
2989a365 TT |
1086 | pid_to_prc (&ptid); |
1087 | ||
1088 | inferior_ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); | |
f6ac5f3d | 1089 | ptid = beneath->wait (ptid, status, options); |
2989a365 | 1090 | } |
14fa3751 | 1091 | |
dfd4cc63 | 1092 | if (ptid_get_pid (ptid) == -1) |
c11d79f2 KB |
1093 | return pid_to_ptid (-1); |
1094 | ||
0fe7bf7b | 1095 | /* Check whether libpthdebug might be ready to be initialized. */ |
515630c5 | 1096 | if (!pd_active && status->kind == TARGET_WAITKIND_STOPPED |
a493e3e2 | 1097 | && status->value.sig == GDB_SIGNAL_TRAP) |
515630c5 UW |
1098 | { |
1099 | struct regcache *regcache = get_thread_regcache (ptid); | |
ac7936df | 1100 | struct gdbarch *gdbarch = regcache->arch (); |
515630c5 UW |
1101 | |
1102 | if (regcache_read_pc (regcache) | |
527a273a | 1103 | - gdbarch_decr_pc_after_break (gdbarch) == pd_brk_addr) |
515630c5 UW |
1104 | return pd_activate (0); |
1105 | } | |
c11d79f2 KB |
1106 | |
1107 | return pd_update (0); | |
1108 | } | |
1109 | ||
0fe7bf7b | 1110 | /* Record that the 64-bit general-purpose registers contain VALS. */ |
c11d79f2 KB |
1111 | |
1112 | static void | |
647478e0 | 1113 | supply_gprs64 (struct regcache *regcache, uint64_t *vals) |
c11d79f2 | 1114 | { |
ac7936df | 1115 | struct gdbarch_tdep *tdep = gdbarch_tdep (regcache->arch ()); |
c11d79f2 KB |
1116 | int regno; |
1117 | ||
063715bf | 1118 | for (regno = 0; regno < ppc_num_gprs; regno++) |
647478e0 | 1119 | regcache_raw_supply (regcache, tdep->ppc_gp0_regnum + regno, |
23a6d369 | 1120 | (char *) (vals + regno)); |
c11d79f2 KB |
1121 | } |
1122 | ||
0fe7bf7b | 1123 | /* Record that 32-bit register REGNO contains VAL. */ |
c11d79f2 KB |
1124 | |
1125 | static void | |
647478e0 | 1126 | supply_reg32 (struct regcache *regcache, int regno, uint32_t val) |
c11d79f2 | 1127 | { |
647478e0 | 1128 | regcache_raw_supply (regcache, regno, (char *) &val); |
c11d79f2 KB |
1129 | } |
1130 | ||
0fe7bf7b | 1131 | /* Record that the floating-point registers contain VALS. */ |
c11d79f2 KB |
1132 | |
1133 | static void | |
647478e0 | 1134 | supply_fprs (struct regcache *regcache, double *vals) |
c11d79f2 | 1135 | { |
ac7936df | 1136 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1137 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
c11d79f2 KB |
1138 | int regno; |
1139 | ||
383f0f5b JB |
1140 | /* This function should never be called on architectures without |
1141 | floating-point registers. */ | |
c7f30c7a | 1142 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1143 | |
786c562f JB |
1144 | for (regno = tdep->ppc_fp0_regnum; |
1145 | regno < tdep->ppc_fp0_regnum + ppc_num_fprs; | |
1146 | regno++) | |
1147 | regcache_raw_supply (regcache, regno, | |
1148 | (char *) (vals + regno - tdep->ppc_fp0_regnum)); | |
c11d79f2 KB |
1149 | } |
1150 | ||
f1a91342 KB |
1151 | /* Predicate to test whether given register number is a "special" register. */ |
1152 | static int | |
9970f04b | 1153 | special_register_p (struct gdbarch *gdbarch, int regno) |
f1a91342 | 1154 | { |
9970f04b | 1155 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1156 | |
9970f04b | 1157 | return regno == gdbarch_pc_regnum (gdbarch) |
f1a91342 KB |
1158 | || regno == tdep->ppc_ps_regnum |
1159 | || regno == tdep->ppc_cr_regnum | |
1160 | || regno == tdep->ppc_lr_regnum | |
1161 | || regno == tdep->ppc_ctr_regnum | |
1162 | || regno == tdep->ppc_xer_regnum | |
383f0f5b | 1163 | || (tdep->ppc_fpscr_regnum >= 0 && regno == tdep->ppc_fpscr_regnum) |
f1a91342 KB |
1164 | || (tdep->ppc_mq_regnum >= 0 && regno == tdep->ppc_mq_regnum); |
1165 | } | |
1166 | ||
1167 | ||
0fe7bf7b MS |
1168 | /* Record that the special registers contain the specified 64-bit and |
1169 | 32-bit values. */ | |
c11d79f2 KB |
1170 | |
1171 | static void | |
647478e0 UW |
1172 | supply_sprs64 (struct regcache *regcache, |
1173 | uint64_t iar, uint64_t msr, uint32_t cr, | |
0e061eef KB |
1174 | uint64_t lr, uint64_t ctr, uint32_t xer, |
1175 | uint32_t fpscr) | |
c11d79f2 | 1176 | { |
ac7936df | 1177 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1178 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1179 | |
c7f30c7a | 1180 | regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch), |
3e8c568d | 1181 | (char *) &iar); |
647478e0 UW |
1182 | regcache_raw_supply (regcache, tdep->ppc_ps_regnum, (char *) &msr); |
1183 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, (char *) &cr); | |
1184 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, (char *) &lr); | |
1185 | regcache_raw_supply (regcache, tdep->ppc_ctr_regnum, (char *) &ctr); | |
1186 | regcache_raw_supply (regcache, tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1187 | if (tdep->ppc_fpscr_regnum >= 0) |
647478e0 | 1188 | regcache_raw_supply (regcache, tdep->ppc_fpscr_regnum, |
23a6d369 | 1189 | (char *) &fpscr); |
c11d79f2 KB |
1190 | } |
1191 | ||
0fe7bf7b MS |
1192 | /* Record that the special registers contain the specified 32-bit |
1193 | values. */ | |
c11d79f2 KB |
1194 | |
1195 | static void | |
647478e0 UW |
1196 | supply_sprs32 (struct regcache *regcache, |
1197 | uint32_t iar, uint32_t msr, uint32_t cr, | |
0e061eef KB |
1198 | uint32_t lr, uint32_t ctr, uint32_t xer, |
1199 | uint32_t fpscr) | |
c11d79f2 | 1200 | { |
ac7936df | 1201 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1202 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1203 | |
c7f30c7a | 1204 | regcache_raw_supply (regcache, gdbarch_pc_regnum (gdbarch), |
3e8c568d | 1205 | (char *) &iar); |
647478e0 UW |
1206 | regcache_raw_supply (regcache, tdep->ppc_ps_regnum, (char *) &msr); |
1207 | regcache_raw_supply (regcache, tdep->ppc_cr_regnum, (char *) &cr); | |
1208 | regcache_raw_supply (regcache, tdep->ppc_lr_regnum, (char *) &lr); | |
1209 | regcache_raw_supply (regcache, tdep->ppc_ctr_regnum, (char *) &ctr); | |
1210 | regcache_raw_supply (regcache, tdep->ppc_xer_regnum, (char *) &xer); | |
383f0f5b | 1211 | if (tdep->ppc_fpscr_regnum >= 0) |
647478e0 | 1212 | regcache_raw_supply (regcache, tdep->ppc_fpscr_regnum, |
23a6d369 | 1213 | (char *) &fpscr); |
c11d79f2 KB |
1214 | } |
1215 | ||
1216 | /* Fetch all registers from pthread PDTID, which doesn't have a kernel | |
1217 | thread. | |
1218 | ||
0fe7bf7b MS |
1219 | There's no way to query a single register from a non-kernel |
1220 | pthread, so there's no need for a single-register version of this | |
1221 | function. */ | |
c11d79f2 KB |
1222 | |
1223 | static void | |
647478e0 | 1224 | fetch_regs_user_thread (struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1225 | { |
ac7936df | 1226 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1227 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
c11d79f2 KB |
1228 | int status, i; |
1229 | pthdb_context_t ctx; | |
1230 | ||
8e2c28d4 | 1231 | if (debug_aix_thread) |
206d3d3c KB |
1232 | fprintf_unfiltered (gdb_stdlog, |
1233 | "fetch_regs_user_thread %lx\n", (long) pdtid); | |
c11d79f2 KB |
1234 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1235 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1236 | error (_("aix-thread: fetch_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1237 | pd_status2str (status)); |
c11d79f2 | 1238 | |
0fe7bf7b | 1239 | /* General-purpose registers. */ |
c11d79f2 KB |
1240 | |
1241 | if (arch64) | |
647478e0 | 1242 | supply_gprs64 (regcache, ctx.gpr); |
c11d79f2 | 1243 | else |
063715bf | 1244 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1245 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, ctx.gpr[i]); |
c11d79f2 | 1246 | |
0fe7bf7b | 1247 | /* Floating-point registers. */ |
c11d79f2 | 1248 | |
c7f30c7a | 1249 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1250 | supply_fprs (regcache, ctx.fpr); |
c11d79f2 | 1251 | |
0fe7bf7b | 1252 | /* Special registers. */ |
c11d79f2 KB |
1253 | |
1254 | if (arch64) | |
647478e0 UW |
1255 | supply_sprs64 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1256 | ctx.xer, ctx.fpscr); | |
c11d79f2 | 1257 | else |
647478e0 UW |
1258 | supply_sprs32 (regcache, ctx.iar, ctx.msr, ctx.cr, ctx.lr, ctx.ctr, |
1259 | ctx.xer, ctx.fpscr); | |
c11d79f2 KB |
1260 | } |
1261 | ||
0fe7bf7b MS |
1262 | /* Fetch register REGNO if != -1 or all registers otherwise from |
1263 | kernel thread TID. | |
c11d79f2 | 1264 | |
0fe7bf7b MS |
1265 | AIX provides a way to query all of a kernel thread's GPRs, FPRs, or |
1266 | SPRs, but there's no way to query individual registers within those | |
1267 | groups. Therefore, if REGNO != -1, this function fetches an entire | |
1268 | group. | |
c11d79f2 | 1269 | |
0fe7bf7b MS |
1270 | Unfortunately, kernel thread register queries often fail with |
1271 | EPERM, indicating that the thread is in kernel space. This breaks | |
1272 | backtraces of threads other than the current one. To make that | |
1273 | breakage obvious without throwing an error to top level (which is | |
1274 | bad e.g. during "info threads" output), zero registers that can't | |
1275 | be retrieved. */ | |
c11d79f2 KB |
1276 | |
1277 | static void | |
647478e0 UW |
1278 | fetch_regs_kernel_thread (struct regcache *regcache, int regno, |
1279 | pthdb_tid_t tid) | |
c11d79f2 | 1280 | { |
ac7936df | 1281 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1282 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
063715bf JB |
1283 | uint64_t gprs64[ppc_num_gprs]; |
1284 | uint32_t gprs32[ppc_num_gprs]; | |
1285 | double fprs[ppc_num_fprs]; | |
c11d79f2 KB |
1286 | struct ptxsprs sprs64; |
1287 | struct ptsprs sprs32; | |
1288 | int i; | |
1289 | ||
8e2c28d4 KB |
1290 | if (debug_aix_thread) |
1291 | fprintf_unfiltered (gdb_stdlog, | |
206d3d3c KB |
1292 | "fetch_regs_kernel_thread tid=%lx regno=%d arch64=%d\n", |
1293 | (long) tid, regno, arch64); | |
c11d79f2 | 1294 | |
0fe7bf7b | 1295 | /* General-purpose registers. */ |
daf6dc85 JB |
1296 | if (regno == -1 |
1297 | || (tdep->ppc_gp0_regnum <= regno | |
1298 | && regno < tdep->ppc_gp0_regnum + ppc_num_gprs)) | |
c11d79f2 KB |
1299 | { |
1300 | if (arch64) | |
1301 | { | |
0fe7bf7b MS |
1302 | if (!ptrace64aix (PTT_READ_GPRS, tid, |
1303 | (unsigned long) gprs64, 0, NULL)) | |
c11d79f2 | 1304 | memset (gprs64, 0, sizeof (gprs64)); |
647478e0 | 1305 | supply_gprs64 (regcache, gprs64); |
c11d79f2 KB |
1306 | } |
1307 | else | |
1308 | { | |
3b631e37 | 1309 | if (!ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL)) |
c11d79f2 | 1310 | memset (gprs32, 0, sizeof (gprs32)); |
063715bf | 1311 | for (i = 0; i < ppc_num_gprs; i++) |
647478e0 | 1312 | supply_reg32 (regcache, tdep->ppc_gp0_regnum + i, gprs32[i]); |
c11d79f2 KB |
1313 | } |
1314 | } | |
1315 | ||
0fe7bf7b | 1316 | /* Floating-point registers. */ |
c11d79f2 | 1317 | |
c7f30c7a | 1318 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1319 | && (regno == -1 |
1320 | || (regno >= tdep->ppc_fp0_regnum | |
1321 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 | 1322 | { |
3b631e37 | 1323 | if (!ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL)) |
c11d79f2 | 1324 | memset (fprs, 0, sizeof (fprs)); |
647478e0 | 1325 | supply_fprs (regcache, fprs); |
c11d79f2 KB |
1326 | } |
1327 | ||
0fe7bf7b | 1328 | /* Special-purpose registers. */ |
c11d79f2 | 1329 | |
9970f04b | 1330 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1331 | { |
1332 | if (arch64) | |
1333 | { | |
0fe7bf7b MS |
1334 | if (!ptrace64aix (PTT_READ_SPRS, tid, |
1335 | (unsigned long) &sprs64, 0, NULL)) | |
c11d79f2 | 1336 | memset (&sprs64, 0, sizeof (sprs64)); |
647478e0 UW |
1337 | supply_sprs64 (regcache, sprs64.pt_iar, sprs64.pt_msr, |
1338 | sprs64.pt_cr, sprs64.pt_lr, sprs64.pt_ctr, | |
1339 | sprs64.pt_xer, sprs64.pt_fpscr); | |
c11d79f2 KB |
1340 | } |
1341 | else | |
1342 | { | |
c7f30c7a | 1343 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 | 1344 | |
3b631e37 | 1345 | if (!ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL)) |
c11d79f2 | 1346 | memset (&sprs32, 0, sizeof (sprs32)); |
647478e0 | 1347 | supply_sprs32 (regcache, sprs32.pt_iar, sprs32.pt_msr, sprs32.pt_cr, |
0e061eef KB |
1348 | sprs32.pt_lr, sprs32.pt_ctr, sprs32.pt_xer, |
1349 | sprs32.pt_fpscr); | |
c11d79f2 | 1350 | |
f1a91342 | 1351 | if (tdep->ppc_mq_regnum >= 0) |
647478e0 | 1352 | regcache_raw_supply (regcache, tdep->ppc_mq_regnum, |
23a6d369 | 1353 | (char *) &sprs32.pt_mq); |
c11d79f2 KB |
1354 | } |
1355 | } | |
1356 | } | |
1357 | ||
edb5fb00 SM |
1358 | /* Fetch register REGNO if != -1 or all registers otherwise from the |
1359 | thread/process connected to REGCACHE. */ | |
c11d79f2 | 1360 | |
f6ac5f3d PA |
1361 | void |
1362 | aix_thread_target::fetch_registers (struct regcache *regcache, int regno) | |
c11d79f2 KB |
1363 | { |
1364 | struct thread_info *thread; | |
1365 | pthdb_tid_t tid; | |
f6ac5f3d | 1366 | struct target_ops *beneath = find_target_beneath (this); |
c11d79f2 | 1367 | |
edb5fb00 | 1368 | if (!PD_TID (regcache_get_ptid (regcache))) |
f6ac5f3d | 1369 | beneath->fetch_registers (regcache, regno); |
c11d79f2 KB |
1370 | else |
1371 | { | |
edb5fb00 | 1372 | thread = find_thread_ptid (regcache_get_ptid (regcache)); |
7aabaf9d SM |
1373 | aix_thread_info *priv = get_aix_thread_info (thread); |
1374 | tid = priv->tid; | |
c11d79f2 KB |
1375 | |
1376 | if (tid == PTHDB_INVALID_TID) | |
7aabaf9d | 1377 | fetch_regs_user_thread (regcache, priv->pdtid); |
c11d79f2 | 1378 | else |
56be3814 | 1379 | fetch_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1380 | } |
1381 | } | |
1382 | ||
61c5da0b KB |
1383 | /* Store the gp registers into an array of uint32_t or uint64_t. */ |
1384 | ||
1385 | static void | |
647478e0 | 1386 | fill_gprs64 (const struct regcache *regcache, uint64_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++) |
672c9795 YQ |
1392 | if (REG_VALID == regcache_register_status (regcache, |
1393 | tdep->ppc_gp0_regnum + regno)) | |
647478e0 | 1394 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + regno, |
822c9732 | 1395 | vals + regno); |
61c5da0b KB |
1396 | } |
1397 | ||
1398 | static void | |
647478e0 | 1399 | fill_gprs32 (const struct regcache *regcache, uint32_t *vals) |
61c5da0b | 1400 | { |
ac7936df | 1401 | struct gdbarch_tdep *tdep = gdbarch_tdep (regcache->arch ()); |
61c5da0b KB |
1402 | int regno; |
1403 | ||
daf6dc85 | 1404 | for (regno = 0; regno < ppc_num_gprs; regno++) |
672c9795 YQ |
1405 | if (REG_VALID == regcache_register_status (regcache, |
1406 | tdep->ppc_gp0_regnum + regno)) | |
647478e0 | 1407 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + regno, |
822c9732 | 1408 | vals + regno); |
61c5da0b KB |
1409 | } |
1410 | ||
1411 | /* Store the floating point registers into a double array. */ | |
1412 | static void | |
647478e0 | 1413 | fill_fprs (const struct regcache *regcache, double *vals) |
61c5da0b | 1414 | { |
ac7936df | 1415 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1416 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
61c5da0b KB |
1417 | int regno; |
1418 | ||
383f0f5b JB |
1419 | /* This function should never be called on architectures without |
1420 | floating-point registers. */ | |
c7f30c7a | 1421 | gdb_assert (ppc_floating_point_unit_p (gdbarch)); |
383f0f5b | 1422 | |
366f009f JB |
1423 | for (regno = tdep->ppc_fp0_regnum; |
1424 | regno < tdep->ppc_fp0_regnum + ppc_num_fprs; | |
1425 | regno++) | |
672c9795 | 1426 | if (REG_VALID == regcache_register_status (regcache, regno)) |
e3ebf1bb JB |
1427 | regcache_raw_collect (regcache, regno, |
1428 | vals + regno - tdep->ppc_fp0_regnum); | |
61c5da0b KB |
1429 | } |
1430 | ||
c11d79f2 | 1431 | /* Store the special registers into the specified 64-bit and 32-bit |
0fe7bf7b | 1432 | locations. */ |
c11d79f2 KB |
1433 | |
1434 | static void | |
647478e0 UW |
1435 | fill_sprs64 (const struct regcache *regcache, |
1436 | uint64_t *iar, uint64_t *msr, uint32_t *cr, | |
0e061eef KB |
1437 | uint64_t *lr, uint64_t *ctr, uint32_t *xer, |
1438 | uint32_t *fpscr) | |
c11d79f2 | 1439 | { |
ac7936df | 1440 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1441 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 KB |
1442 | |
1443 | /* Verify that the size of the size of the IAR buffer is the | |
1444 | same as the raw size of the PC (in the register cache). If | |
1445 | they're not, then either GDB has been built incorrectly, or | |
1446 | there's some other kind of internal error. To be really safe, | |
1447 | we should check all of the sizes. */ | |
3e8c568d | 1448 | gdb_assert (sizeof (*iar) == register_size |
c7f30c7a | 1449 | (gdbarch, gdbarch_pc_regnum (gdbarch))); |
f1a91342 | 1450 | |
672c9795 YQ |
1451 | if (REG_VALID == regcache_register_status (regcache, |
1452 | gdbarch_pc_regnum (gdbarch))) | |
c7f30c7a | 1453 | regcache_raw_collect (regcache, gdbarch_pc_regnum (gdbarch), iar); |
672c9795 | 1454 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ps_regnum)) |
647478e0 | 1455 | regcache_raw_collect (regcache, tdep->ppc_ps_regnum, msr); |
672c9795 | 1456 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_cr_regnum)) |
647478e0 | 1457 | regcache_raw_collect (regcache, tdep->ppc_cr_regnum, cr); |
672c9795 | 1458 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_lr_regnum)) |
647478e0 | 1459 | regcache_raw_collect (regcache, tdep->ppc_lr_regnum, lr); |
672c9795 | 1460 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ctr_regnum)) |
647478e0 | 1461 | regcache_raw_collect (regcache, tdep->ppc_ctr_regnum, ctr); |
672c9795 | 1462 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_xer_regnum)) |
647478e0 | 1463 | regcache_raw_collect (regcache, tdep->ppc_xer_regnum, xer); |
383f0f5b | 1464 | if (tdep->ppc_fpscr_regnum >= 0 |
672c9795 YQ |
1465 | && REG_VALID == regcache_register_status (regcache, |
1466 | tdep->ppc_fpscr_regnum)) | |
647478e0 | 1467 | regcache_raw_collect (regcache, tdep->ppc_fpscr_regnum, fpscr); |
61c5da0b KB |
1468 | } |
1469 | ||
1470 | static void | |
647478e0 UW |
1471 | fill_sprs32 (const struct regcache *regcache, |
1472 | uint32_t *iar, uint32_t *msr, uint32_t *cr, | |
0d16ee5d UW |
1473 | uint32_t *lr, uint32_t *ctr, uint32_t *xer, |
1474 | uint32_t *fpscr) | |
61c5da0b | 1475 | { |
ac7936df | 1476 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1477 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
f1a91342 KB |
1478 | |
1479 | /* Verify that the size of the size of the IAR buffer is the | |
1480 | same as the raw size of the PC (in the register cache). If | |
1481 | they're not, then either GDB has been built incorrectly, or | |
1482 | there's some other kind of internal error. To be really safe, | |
0d16ee5d | 1483 | we should check all of the sizes. */ |
c7f30c7a UW |
1484 | gdb_assert (sizeof (*iar) == register_size (gdbarch, |
1485 | gdbarch_pc_regnum (gdbarch))); | |
f1a91342 | 1486 | |
672c9795 YQ |
1487 | if (REG_VALID == regcache_register_status (regcache, |
1488 | gdbarch_pc_regnum (gdbarch))) | |
c7f30c7a | 1489 | regcache_raw_collect (regcache, gdbarch_pc_regnum (gdbarch), iar); |
672c9795 | 1490 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ps_regnum)) |
647478e0 | 1491 | regcache_raw_collect (regcache, tdep->ppc_ps_regnum, msr); |
672c9795 | 1492 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_cr_regnum)) |
647478e0 | 1493 | regcache_raw_collect (regcache, tdep->ppc_cr_regnum, cr); |
672c9795 | 1494 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_lr_regnum)) |
647478e0 | 1495 | regcache_raw_collect (regcache, tdep->ppc_lr_regnum, lr); |
672c9795 | 1496 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ctr_regnum)) |
647478e0 | 1497 | regcache_raw_collect (regcache, tdep->ppc_ctr_regnum, ctr); |
672c9795 | 1498 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_xer_regnum)) |
647478e0 | 1499 | regcache_raw_collect (regcache, tdep->ppc_xer_regnum, xer); |
383f0f5b | 1500 | if (tdep->ppc_fpscr_regnum >= 0 |
672c9795 | 1501 | && REG_VALID == regcache_register_status (regcache, tdep->ppc_fpscr_regnum)) |
647478e0 | 1502 | regcache_raw_collect (regcache, tdep->ppc_fpscr_regnum, fpscr); |
c11d79f2 KB |
1503 | } |
1504 | ||
1505 | /* Store all registers into pthread PDTID, which doesn't have a kernel | |
1506 | thread. | |
1507 | ||
0fe7bf7b MS |
1508 | It's possible to store a single register into a non-kernel pthread, |
1509 | but I doubt it's worth the effort. */ | |
c11d79f2 KB |
1510 | |
1511 | static void | |
647478e0 | 1512 | store_regs_user_thread (const struct regcache *regcache, pthdb_pthread_t pdtid) |
c11d79f2 | 1513 | { |
ac7936df | 1514 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1515 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
c11d79f2 KB |
1516 | int status, i; |
1517 | pthdb_context_t ctx; | |
61c5da0b KB |
1518 | uint32_t int32; |
1519 | uint64_t int64; | |
1520 | double dbl; | |
c11d79f2 | 1521 | |
8e2c28d4 | 1522 | if (debug_aix_thread) |
0fe7bf7b | 1523 | fprintf_unfiltered (gdb_stdlog, |
206d3d3c | 1524 | "store_regs_user_thread %lx\n", (long) pdtid); |
c11d79f2 | 1525 | |
0fe7bf7b MS |
1526 | /* Retrieve the thread's current context for its non-register |
1527 | values. */ | |
c11d79f2 KB |
1528 | status = pthdb_pthread_context (pd_session, pdtid, &ctx); |
1529 | if (status != PTHDB_SUCCESS) | |
edefbb7c | 1530 | error (_("aix-thread: store_registers: pthdb_pthread_context returned %s"), |
14fa3751 | 1531 | pd_status2str (status)); |
c11d79f2 | 1532 | |
61c5da0b | 1533 | /* Collect general-purpose register values from the regcache. */ |
c11d79f2 | 1534 | |
063715bf | 1535 | for (i = 0; i < ppc_num_gprs; i++) |
672c9795 YQ |
1536 | if (REG_VALID == regcache_register_status (regcache, |
1537 | tdep->ppc_gp0_regnum + i)) | |
cbe92db4 KB |
1538 | { |
1539 | if (arch64) | |
1540 | { | |
647478e0 | 1541 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + i, |
822c9732 | 1542 | (void *) &int64); |
cbe92db4 KB |
1543 | ctx.gpr[i] = int64; |
1544 | } | |
1545 | else | |
1546 | { | |
647478e0 | 1547 | regcache_raw_collect (regcache, tdep->ppc_gp0_regnum + i, |
822c9732 | 1548 | (void *) &int32); |
cbe92db4 KB |
1549 | ctx.gpr[i] = int32; |
1550 | } | |
1551 | } | |
c11d79f2 | 1552 | |
61c5da0b | 1553 | /* Collect floating-point register values from the regcache. */ |
c7f30c7a | 1554 | if (ppc_floating_point_unit_p (gdbarch)) |
647478e0 | 1555 | fill_fprs (regcache, ctx.fpr); |
c11d79f2 | 1556 | |
61c5da0b KB |
1557 | /* Special registers (always kept in ctx as 64 bits). */ |
1558 | if (arch64) | |
1559 | { | |
647478e0 UW |
1560 | fill_sprs64 (regcache, &ctx.iar, &ctx.msr, &ctx.cr, &ctx.lr, &ctx.ctr, |
1561 | &ctx.xer, &ctx.fpscr); | |
61c5da0b KB |
1562 | } |
1563 | else | |
1564 | { | |
1565 | /* Problem: ctx.iar etc. are 64 bits, but raw_registers are 32. | |
0d16ee5d UW |
1566 | Solution: use 32-bit temp variables. */ |
1567 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1568 | tmp_fpscr; | |
61c5da0b | 1569 | |
647478e0 UW |
1570 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, &tmp_ctr, |
1571 | &tmp_xer, &tmp_fpscr); | |
672c9795 YQ |
1572 | if (REG_VALID == regcache_register_status (regcache, |
1573 | gdbarch_pc_regnum (gdbarch))) | |
cbe92db4 | 1574 | ctx.iar = tmp_iar; |
672c9795 | 1575 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_ps_regnum)) |
cbe92db4 | 1576 | ctx.msr = tmp_msr; |
672c9795 | 1577 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_cr_regnum)) |
cbe92db4 | 1578 | ctx.cr = tmp_cr; |
672c9795 | 1579 | if (REG_VALID == regcache_register_status (regcache, tdep->ppc_lr_regnum)) |
cbe92db4 | 1580 | ctx.lr = tmp_lr; |
672c9795 YQ |
1581 | if (REG_VALID == regcache_register_status (regcache, |
1582 | tdep->ppc_ctr_regnum)) | |
cbe92db4 | 1583 | ctx.ctr = tmp_ctr; |
672c9795 YQ |
1584 | if (REG_VALID == regcache_register_status (regcache, |
1585 | tdep->ppc_xer_regnum)) | |
cbe92db4 | 1586 | ctx.xer = tmp_xer; |
672c9795 YQ |
1587 | if (REG_VALID == regcache_register_status (regcache, |
1588 | tdep->ppc_xer_regnum)) | |
0e061eef | 1589 | ctx.fpscr = tmp_fpscr; |
61c5da0b | 1590 | } |
c11d79f2 KB |
1591 | |
1592 | status = pthdb_pthread_setcontext (pd_session, pdtid, &ctx); | |
1593 | if (status != PTHDB_SUCCESS) | |
0963b4bd MS |
1594 | error (_("aix-thread: store_registers: " |
1595 | "pthdb_pthread_setcontext returned %s"), | |
14fa3751 | 1596 | pd_status2str (status)); |
c11d79f2 KB |
1597 | } |
1598 | ||
0fe7bf7b MS |
1599 | /* Store register REGNO if != -1 or all registers otherwise into |
1600 | kernel thread TID. | |
c11d79f2 | 1601 | |
0fe7bf7b MS |
1602 | AIX provides a way to set all of a kernel thread's GPRs, FPRs, or |
1603 | SPRs, but there's no way to set individual registers within those | |
1604 | groups. Therefore, if REGNO != -1, this function stores an entire | |
1605 | group. */ | |
c11d79f2 KB |
1606 | |
1607 | static void | |
647478e0 UW |
1608 | store_regs_kernel_thread (const struct regcache *regcache, int regno, |
1609 | pthdb_tid_t tid) | |
c11d79f2 | 1610 | { |
ac7936df | 1611 | struct gdbarch *gdbarch = regcache->arch (); |
c7f30c7a | 1612 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); |
063715bf JB |
1613 | uint64_t gprs64[ppc_num_gprs]; |
1614 | uint32_t gprs32[ppc_num_gprs]; | |
1615 | double fprs[ppc_num_fprs]; | |
c11d79f2 | 1616 | struct ptxsprs sprs64; |
61c5da0b KB |
1617 | struct ptsprs sprs32; |
1618 | int i; | |
c11d79f2 | 1619 | |
8e2c28d4 | 1620 | if (debug_aix_thread) |
206d3d3c KB |
1621 | fprintf_unfiltered (gdb_stdlog, |
1622 | "store_regs_kernel_thread tid=%lx regno=%d\n", | |
1623 | (long) tid, regno); | |
c11d79f2 | 1624 | |
0fe7bf7b | 1625 | /* General-purpose registers. */ |
daf6dc85 JB |
1626 | if (regno == -1 |
1627 | || (tdep->ppc_gp0_regnum <= regno | |
1628 | && regno < tdep->ppc_gp0_regnum + ppc_num_fprs)) | |
c11d79f2 | 1629 | { |
c11d79f2 | 1630 | if (arch64) |
61c5da0b | 1631 | { |
cbe92db4 KB |
1632 | /* Pre-fetch: some regs may not be in the cache. */ |
1633 | ptrace64aix (PTT_READ_GPRS, tid, (unsigned long) gprs64, 0, NULL); | |
647478e0 | 1634 | fill_gprs64 (regcache, gprs64); |
61c5da0b KB |
1635 | ptrace64aix (PTT_WRITE_GPRS, tid, (unsigned long) gprs64, 0, NULL); |
1636 | } | |
c11d79f2 | 1637 | else |
61c5da0b | 1638 | { |
cbe92db4 | 1639 | /* Pre-fetch: some regs may not be in the cache. */ |
3b631e37 | 1640 | ptrace32 (PTT_READ_GPRS, tid, (uintptr_t) gprs32, 0, NULL); |
647478e0 | 1641 | fill_gprs32 (regcache, gprs32); |
3b631e37 | 1642 | ptrace32 (PTT_WRITE_GPRS, tid, (uintptr_t) gprs32, 0, NULL); |
61c5da0b | 1643 | } |
c11d79f2 KB |
1644 | } |
1645 | ||
0fe7bf7b | 1646 | /* Floating-point registers. */ |
c11d79f2 | 1647 | |
c7f30c7a | 1648 | if (ppc_floating_point_unit_p (gdbarch) |
383f0f5b JB |
1649 | && (regno == -1 |
1650 | || (regno >= tdep->ppc_fp0_regnum | |
1651 | && regno < tdep->ppc_fp0_regnum + ppc_num_fprs))) | |
c11d79f2 | 1652 | { |
cbe92db4 | 1653 | /* Pre-fetch: some regs may not be in the cache. */ |
3b631e37 | 1654 | ptrace32 (PTT_READ_FPRS, tid, (uintptr_t) fprs, 0, NULL); |
647478e0 | 1655 | fill_fprs (regcache, fprs); |
3b631e37 | 1656 | ptrace32 (PTT_WRITE_FPRS, tid, (uintptr_t) fprs, 0, NULL); |
c11d79f2 KB |
1657 | } |
1658 | ||
0fe7bf7b | 1659 | /* Special-purpose registers. */ |
c11d79f2 | 1660 | |
9970f04b | 1661 | if (regno == -1 || special_register_p (gdbarch, regno)) |
c11d79f2 KB |
1662 | { |
1663 | if (arch64) | |
1664 | { | |
cbe92db4 | 1665 | /* Pre-fetch: some registers won't be in the cache. */ |
0fe7bf7b MS |
1666 | ptrace64aix (PTT_READ_SPRS, tid, |
1667 | (unsigned long) &sprs64, 0, NULL); | |
647478e0 UW |
1668 | fill_sprs64 (regcache, &sprs64.pt_iar, &sprs64.pt_msr, |
1669 | &sprs64.pt_cr, &sprs64.pt_lr, &sprs64.pt_ctr, | |
1670 | &sprs64.pt_xer, &sprs64.pt_fpscr); | |
0fe7bf7b MS |
1671 | ptrace64aix (PTT_WRITE_SPRS, tid, |
1672 | (unsigned long) &sprs64, 0, NULL); | |
c11d79f2 KB |
1673 | } |
1674 | else | |
1675 | { | |
0d16ee5d UW |
1676 | /* The contents of "struct ptspr" were declared as "unsigned |
1677 | long" up to AIX 5.2, but are "unsigned int" since 5.3. | |
1678 | Use temporaries to work around this problem. Also, add an | |
1679 | assert here to make sure we fail if the system header files | |
1680 | use "unsigned long", and the size of that type is not what | |
1681 | the headers expect. */ | |
1682 | uint32_t tmp_iar, tmp_msr, tmp_cr, tmp_lr, tmp_ctr, tmp_xer, | |
1683 | tmp_fpscr; | |
1684 | ||
1685 | gdb_assert (sizeof (sprs32.pt_iar) == 4); | |
1686 | ||
cbe92db4 | 1687 | /* Pre-fetch: some registers won't be in the cache. */ |
3b631e37 | 1688 | ptrace32 (PTT_READ_SPRS, tid, (uintptr_t) &sprs32, 0, NULL); |
c11d79f2 | 1689 | |
647478e0 UW |
1690 | fill_sprs32 (regcache, &tmp_iar, &tmp_msr, &tmp_cr, &tmp_lr, |
1691 | &tmp_ctr, &tmp_xer, &tmp_fpscr); | |
0d16ee5d UW |
1692 | |
1693 | sprs32.pt_iar = tmp_iar; | |
1694 | sprs32.pt_msr = tmp_msr; | |
1695 | sprs32.pt_cr = tmp_cr; | |
1696 | sprs32.pt_lr = tmp_lr; | |
1697 | sprs32.pt_ctr = tmp_ctr; | |
1698 | sprs32.pt_xer = tmp_xer; | |
1699 | sprs32.pt_fpscr = tmp_fpscr; | |
c11d79f2 | 1700 | |
f1a91342 | 1701 | if (tdep->ppc_mq_regnum >= 0) |
672c9795 YQ |
1702 | if (REG_VALID == regcache_register_status (regcache, |
1703 | tdep->ppc_mq_regnum)) | |
647478e0 | 1704 | regcache_raw_collect (regcache, tdep->ppc_mq_regnum, |
822c9732 | 1705 | &sprs32.pt_mq); |
c11d79f2 | 1706 | |
3b631e37 | 1707 | ptrace32 (PTT_WRITE_SPRS, tid, (uintptr_t) &sprs32, 0, NULL); |
c11d79f2 KB |
1708 | } |
1709 | } | |
1710 | } | |
1711 | ||
0fe7bf7b | 1712 | /* Store gdb's current view of the register set into the |
edb5fb00 | 1713 | thread/process connected to REGCACHE. */ |
c11d79f2 | 1714 | |
f6ac5f3d PA |
1715 | void |
1716 | aix_thread_target::store_registers (struct regcache *regcache, int regno) | |
c11d79f2 KB |
1717 | { |
1718 | struct thread_info *thread; | |
1719 | pthdb_tid_t tid; | |
f6ac5f3d | 1720 | struct target_ops *beneath = find_target_beneath (this); |
c11d79f2 | 1721 | |
edb5fb00 | 1722 | if (!PD_TID (regcache_get_ptid (regcache))) |
f6ac5f3d | 1723 | beneath->store_registers (regcache, regno); |
c11d79f2 KB |
1724 | else |
1725 | { | |
edb5fb00 | 1726 | thread = find_thread_ptid (regcache_get_ptid (regcache)); |
7aabaf9d SM |
1727 | aix_thread_info *priv = get_aix_thread_info (thread); |
1728 | tid = priv->tid; | |
c11d79f2 KB |
1729 | |
1730 | if (tid == PTHDB_INVALID_TID) | |
7aabaf9d | 1731 | store_regs_user_thread (regcache, priv->pdtid); |
c11d79f2 | 1732 | else |
56be3814 | 1733 | store_regs_kernel_thread (regcache, regno, tid); |
c11d79f2 KB |
1734 | } |
1735 | } | |
1736 | ||
edcc890f | 1737 | /* Implement the to_xfer_partial target_ops method. */ |
037a727e | 1738 | |
f6ac5f3d PA |
1739 | enum target_xfer_status |
1740 | aix_thread_target::xfer_partial (enum target_object object, | |
1741 | const char *annex, gdb_byte *readbuf, | |
1742 | const gdb_byte *writebuf, | |
1743 | ULONGEST offset, ULONGEST len, | |
1744 | ULONGEST *xfered_len) | |
c11d79f2 | 1745 | { |
2989a365 | 1746 | scoped_restore save_inferior_ptid = make_scoped_restore (&inferior_ptid); |
f6ac5f3d | 1747 | struct target_ops *beneath = find_target_beneath (this); |
14fa3751 | 1748 | |
dfd4cc63 | 1749 | inferior_ptid = pid_to_ptid (ptid_get_pid (inferior_ptid)); |
f6ac5f3d PA |
1750 | return beneath->xfer_partial (object, annex, readbuf, |
1751 | writebuf, offset, len, xfered_len); | |
c11d79f2 KB |
1752 | } |
1753 | ||
0fe7bf7b | 1754 | /* Clean up after the inferior exits. */ |
c11d79f2 | 1755 | |
f6ac5f3d PA |
1756 | void |
1757 | aix_thread_target::mourn_inferior () | |
c11d79f2 | 1758 | { |
f6ac5f3d | 1759 | struct target_ops *beneath = find_target_beneath (this); |
d30acaa7 | 1760 | |
c11d79f2 | 1761 | pd_deactivate (); |
f6ac5f3d | 1762 | beneath->mourn_inferior (); |
c11d79f2 KB |
1763 | } |
1764 | ||
0fe7bf7b | 1765 | /* Return whether thread PID is still valid. */ |
c11d79f2 | 1766 | |
57810aa7 | 1767 | bool |
f6ac5f3d | 1768 | aix_thread_target::thread_alive (ptid_t ptid) |
c11d79f2 | 1769 | { |
f6ac5f3d | 1770 | struct target_ops *beneath = find_target_beneath (this); |
d30acaa7 | 1771 | |
c11d79f2 | 1772 | if (!PD_TID (ptid)) |
f6ac5f3d | 1773 | return beneath->thread_alive (ptid); |
c11d79f2 | 1774 | |
0fe7bf7b MS |
1775 | /* We update the thread list every time the child stops, so all |
1776 | valid threads should be in the thread list. */ | |
c11d79f2 KB |
1777 | return in_thread_list (ptid); |
1778 | } | |
1779 | ||
0fe7bf7b MS |
1780 | /* Return a printable representation of composite PID for use in |
1781 | "info threads" output. */ | |
c11d79f2 | 1782 | |
f6ac5f3d PA |
1783 | const char * |
1784 | aix_thread_target::pid_to_str (ptid_t ptid) | |
c11d79f2 KB |
1785 | { |
1786 | static char *ret = NULL; | |
f6ac5f3d | 1787 | struct target_ops *beneath = find_target_beneath (this); |
c11d79f2 KB |
1788 | |
1789 | if (!PD_TID (ptid)) | |
f6ac5f3d | 1790 | return beneath->pid_to_str (ptid); |
c11d79f2 KB |
1791 | |
1792 | /* Free previous return value; a new one will be allocated by | |
b435e160 | 1793 | xstrprintf(). */ |
c11d79f2 KB |
1794 | xfree (ret); |
1795 | ||
edefbb7c | 1796 | ret = xstrprintf (_("Thread %ld"), ptid_get_tid (ptid)); |
c11d79f2 KB |
1797 | return ret; |
1798 | } | |
1799 | ||
0fe7bf7b MS |
1800 | /* Return a printable representation of extra information about |
1801 | THREAD, for use in "info threads" output. */ | |
c11d79f2 | 1802 | |
f6ac5f3d PA |
1803 | const char * |
1804 | aix_thread_target::extra_thread_info (struct thread_info *thread) | |
c11d79f2 | 1805 | { |
c11d79f2 KB |
1806 | int status; |
1807 | pthdb_pthread_t pdtid; | |
1808 | pthdb_tid_t tid; | |
1809 | pthdb_state_t state; | |
1810 | pthdb_suspendstate_t suspendstate; | |
1811 | pthdb_detachstate_t detachstate; | |
1812 | int cancelpend; | |
c11d79f2 KB |
1813 | static char *ret = NULL; |
1814 | ||
1815 | if (!PD_TID (thread->ptid)) | |
1816 | return NULL; | |
1817 | ||
d7e74731 | 1818 | string_file buf; |
7aabaf9d | 1819 | aix_thread_info *priv = get_aix_thread_info (thread); |
c11d79f2 | 1820 | |
7aabaf9d SM |
1821 | pdtid = priv->pdtid; |
1822 | tid = priv->tid; | |
c11d79f2 KB |
1823 | |
1824 | if (tid != PTHDB_INVALID_TID) | |
edefbb7c | 1825 | /* i18n: Like "thread-identifier %d, [state] running, suspended" */ |
d7e74731 | 1826 | buf.printf (_("tid %d"), (int)tid); |
c11d79f2 KB |
1827 | |
1828 | status = pthdb_pthread_state (pd_session, pdtid, &state); | |
1829 | if (status != PTHDB_SUCCESS) | |
1830 | state = PST_NOTSUP; | |
d7e74731 | 1831 | buf.printf (", %s", state2str (state)); |
c11d79f2 | 1832 | |
0fe7bf7b MS |
1833 | status = pthdb_pthread_suspendstate (pd_session, pdtid, |
1834 | &suspendstate); | |
c11d79f2 | 1835 | if (status == PTHDB_SUCCESS && suspendstate == PSS_SUSPENDED) |
edefbb7c | 1836 | /* i18n: Like "Thread-Id %d, [state] running, suspended" */ |
d7e74731 | 1837 | buf.printf (_(", suspended")); |
c11d79f2 | 1838 | |
0fe7bf7b MS |
1839 | status = pthdb_pthread_detachstate (pd_session, pdtid, |
1840 | &detachstate); | |
c11d79f2 | 1841 | if (status == PTHDB_SUCCESS && detachstate == PDS_DETACHED) |
edefbb7c | 1842 | /* i18n: Like "Thread-Id %d, [state] running, detached" */ |
d7e74731 | 1843 | buf.printf (_(", detached")); |
c11d79f2 KB |
1844 | |
1845 | pthdb_pthread_cancelpend (pd_session, pdtid, &cancelpend); | |
1846 | if (status == PTHDB_SUCCESS && cancelpend) | |
edefbb7c | 1847 | /* i18n: Like "Thread-Id %d, [state] running, cancel pending" */ |
d7e74731 | 1848 | buf.printf (_(", cancel pending")); |
c11d79f2 | 1849 | |
d7e74731 | 1850 | buf.write ("", 1); |
c11d79f2 KB |
1851 | |
1852 | xfree (ret); /* Free old buffer. */ | |
1853 | ||
d7e74731 | 1854 | ret = xstrdup (buf.c_str ()); |
c11d79f2 KB |
1855 | |
1856 | return ret; | |
1857 | } | |
1858 | ||
f6ac5f3d PA |
1859 | ptid_t |
1860 | aix_thread_target::get_ada_task_ptid (long lwp, long thread) | |
c7660128 JB |
1861 | { |
1862 | return ptid_build (ptid_get_pid (inferior_ptid), 0, thread); | |
1863 | } | |
1864 | ||
c11d79f2 KB |
1865 | |
1866 | /* Module startup initialization function, automagically called by | |
0fe7bf7b | 1867 | init.c. */ |
c11d79f2 KB |
1868 | |
1869 | void | |
1870 | _initialize_aix_thread (void) | |
1871 | { | |
0fe7bf7b | 1872 | /* Notice when object files get loaded and unloaded. */ |
76727919 | 1873 | gdb::observers::new_objfile.attach (new_objfile); |
8e2c28d4 | 1874 | |
b3ccfe11 TT |
1875 | /* Add ourselves to inferior_created event chain. |
1876 | This is needed to enable the thread target on "attach". */ | |
76727919 | 1877 | gdb::observers::inferior_created.attach (aix_thread_inferior_created); |
b3ccfe11 | 1878 | |
577b7047 | 1879 | add_setshow_boolean_cmd ("aix-thread", class_maintenance, &debug_aix_thread, |
0963b4bd MS |
1880 | _("Set debugging of AIX thread module."), |
1881 | _("Show debugging of AIX thread module."), | |
1882 | _("Enables debugging output (used to debug GDB)."), | |
1883 | NULL, NULL, | |
1884 | /* FIXME: i18n: Debugging of AIX thread | |
1885 | module is \"%d\". */ | |
1886 | &setdebuglist, &showdebuglist); | |
c11d79f2 | 1887 | } |