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ntdll: Move NtSetContextThread implementation to the platform-specific files.
[wine.git] / dlls / ntdll / signal_powerpc.c
blobe44f0b445ca2390765fd05f2d7c15995b4c7dc64
1 /*
2 * PowerPC signal handling routines
3 *
4 * Copyright 2002 Marcus Meissner, SuSE Linux AG
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #ifdef __powerpc__
22
23 #include "config.h"
24 #include "wine/port.h"
25
26 #include <assert.h>
27 #include <signal.h>
28 #include <stdlib.h>
29 #include <stdarg.h>
30 #include <stdio.h>
31 #include <sys/types.h>
32 #ifdef HAVE_UNISTD_H
33 # include <unistd.h>
34 #endif
35 #ifdef HAVE_SYS_PARAM_H
36 # include <sys/param.h>
37 #endif
38 #ifdef HAVE_SYSCALL_H
39 # include <syscall.h>
40 #else
41 # ifdef HAVE_SYS_SYSCALL_H
42 # include <sys/syscall.h>
43 # endif
44 #endif
45 #ifdef HAVE_SYS_SIGNAL_H
46 # include <sys/signal.h>
47 #endif
48 #ifdef HAVE_SYS_UCONTEXT_H
49 # include <sys/ucontext.h>
50 #endif
51
52 #include "ntstatus.h"
53 #define WIN32_NO_STATUS
54 #include "windef.h"
55 #include "winternl.h"
56 #include "wine/library.h"
57 #include "wine/exception.h"
58 #include "ntdll_misc.h"
59 #include "wine/debug.h"
60
61 WINE_DEFAULT_DEBUG_CHANNEL(seh);
62
63 static pthread_key_t teb_key;
64
65 /***********************************************************************
66 * signal context platform-specific definitions
67 */
68 #ifdef linux
69
70 /* All Registers access - only for local access */
71 # define REG_sig(reg_name, context) ((context)->uc_mcontext.regs->reg_name)
72
73
74 /* Gpr Registers access */
75 # define GPR_sig(reg_num, context) REG_sig(gpr[reg_num], context)
76
77 # define IAR_sig(context) REG_sig(nip, context) /* Program counter */
78 # define MSR_sig(context) REG_sig(msr, context) /* Machine State Register (Supervisor) */
79 # define CTR_sig(context) REG_sig(ctr, context) /* Count register */
80
81 # define XER_sig(context) REG_sig(xer, context) /* User's integer exception register */
82 # define LR_sig(context) REG_sig(link, context) /* Link register */
83 # define CR_sig(context) REG_sig(ccr, context) /* Condition register */
84
85 /* Float Registers access */
86 # define FLOAT_sig(reg_num, context) (((double*)((char*)((context)->uc_mcontext.regs+48*4)))[reg_num])
87
88 # define FPSCR_sig(context) (*(int*)((char*)((context)->uc_mcontext.regs+(48+32*2)*4)))
89
90 /* Exception Registers access */
91 # define DAR_sig(context) REG_sig(dar, context)
92 # define DSISR_sig(context) REG_sig(dsisr, context)
93 # define TRAP_sig(context) REG_sig(trap, context)
94
95 #endif /* linux */
96
97 #ifdef __APPLE__
98
99 /* All Registers access - only for local access */
100 # define REG_sig(reg_name, context) ((context)->uc_mcontext->ss.reg_name)
101 # define FLOATREG_sig(reg_name, context) ((context)->uc_mcontext->fs.reg_name)
102 # define EXCEPREG_sig(reg_name, context) ((context)->uc_mcontext->es.reg_name)
103 # define VECREG_sig(reg_name, context) ((context)->uc_mcontext->vs.reg_name)
104
105 /* Gpr Registers access */
106 # define GPR_sig(reg_num, context) REG_sig(r##reg_num, context)
107
108 # define IAR_sig(context) REG_sig(srr0, context) /* Program counter */
109 # define MSR_sig(context) REG_sig(srr1, context) /* Machine State Register (Supervisor) */
110 # define CTR_sig(context) REG_sig(ctr, context)
111
112 # define XER_sig(context) REG_sig(xer, context) /* Link register */
113 # define LR_sig(context) REG_sig(lr, context) /* User's integer exception register */
114 # define CR_sig(context) REG_sig(cr, context) /* Condition register */
115
116 /* Float Registers access */
117 # define FLOAT_sig(reg_num, context) FLOATREG_sig(fpregs[reg_num], context)
118
119 # define FPSCR_sig(context) FLOATREG_sig(fpscr, context)
120
121 /* Exception Registers access */
122 # define DAR_sig(context) EXCEPREG_sig(dar, context) /* Fault registers for coredump */
123 # define DSISR_sig(context) EXCEPREG_sig(dsisr, context)
124 # define TRAP_sig(context) EXCEPREG_sig(exception, context) /* number of powerpc exception taken */
125
126 /* Signal defs : Those are undefined on darwin
127 SIGBUS
128 #undef BUS_ADRERR
129 #undef BUS_OBJERR
130 SIGILL
131 #undef ILL_ILLOPN
132 #undef ILL_ILLTRP
133 #undef ILL_ILLADR
134 #undef ILL_COPROC
135 #undef ILL_PRVREG
136 #undef ILL_BADSTK
137 SIGTRAP
138 #undef TRAP_BRKPT
139 #undef TRAP_TRACE
140 SIGFPE
141 */
142
143 #endif /* __APPLE__ */
144
145
146
147 typedef int (*wine_signal_handler)(unsigned int sig);
148
149 static wine_signal_handler handlers[256];
150
151 /***********************************************************************
152 * dispatch_signal
153 */
154 static inline int dispatch_signal(unsigned int sig)
155 {
156 if (handlers[sig] == NULL) return 0;
157 return handlers[sig](sig);
158 }
159
160 /***********************************************************************
161 * save_context
162 *
163 * Set the register values from a sigcontext.
164 */
165 static void save_context( CONTEXT *context, const ucontext_t *sigcontext )
166 {
167
168 #define C(x) context->Gpr##x = GPR_sig(x,sigcontext)
169 /* Save Gpr registers */
170 C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
171 C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
172 C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
173 C(31);
174 #undef C
175
176 context->Iar = IAR_sig(sigcontext); /* Program Counter */
177 context->Msr = MSR_sig(sigcontext); /* Machine State Register (Supervisor) */
178 context->Ctr = CTR_sig(sigcontext);
179
180 context->Xer = XER_sig(sigcontext);
181 context->Lr = LR_sig(sigcontext);
182 context->Cr = CR_sig(sigcontext);
183
184 /* Saving Exception regs */
185 context->Dar = DAR_sig(sigcontext);
186 context->Dsisr = DSISR_sig(sigcontext);
187 context->Trap = TRAP_sig(sigcontext);
188 }
189
190
191 /***********************************************************************
192 * restore_context
193 *
194 * Build a sigcontext from the register values.
195 */
196 static void restore_context( const CONTEXT *context, ucontext_t *sigcontext )
197 {
198
199 #define C(x) GPR_sig(x,sigcontext) = context->Gpr##x
200 C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
201 C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
202 C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
203 C(31);
204 #undef C
205
206 IAR_sig(sigcontext) = context->Iar; /* Program Counter */
207 MSR_sig(sigcontext) = context->Msr; /* Machine State Register (Supervisor) */
208 CTR_sig(sigcontext) = context->Ctr;
209
210 XER_sig(sigcontext) = context->Xer;
211 LR_sig(sigcontext) = context->Lr;
212 CR_sig(sigcontext) = context->Cr;
213
214 /* Setting Exception regs */
215 DAR_sig(sigcontext) = context->Dar;
216 DSISR_sig(sigcontext) = context->Dsisr;
217 TRAP_sig(sigcontext) = context->Trap;
218 }
219
220
221 /***********************************************************************
222 * save_fpu
223 *
224 * Set the FPU context from a sigcontext.
225 */
226 static inline void save_fpu( CONTEXT *context, const ucontext_t *sigcontext )
227 {
228 #define C(x) context->Fpr##x = FLOAT_sig(x,sigcontext)
229 C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
230 C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
231 C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
232 C(31);
233 #undef C
234 context->Fpscr = FPSCR_sig(sigcontext);
235 }
236
237
238 /***********************************************************************
239 * restore_fpu
240 *
241 * Restore the FPU context to a sigcontext.
242 */
243 static inline void restore_fpu( CONTEXT *context, const ucontext_t *sigcontext )
244 {
245 #define C(x) FLOAT_sig(x,sigcontext) = context->Fpr##x
246 C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
247 C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
248 C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
249 C(31);
250 #undef C
251 FPSCR_sig(sigcontext) = context->Fpscr;
252 }
253
254
255 /***********************************************************************
256 * RtlCaptureContext (NTDLL.@)
257 */
258 void WINAPI RtlCaptureContext( CONTEXT *context )
259 {
260 FIXME("not implemented\n");
261 memset( context, 0, sizeof(*context) );
262 }
263
264
265 /***********************************************************************
266 * set_cpu_context
267 *
268 * Set the new CPU context.
269 */
270 static void set_cpu_context( const CONTEXT *context )
271 {
272 FIXME("not implemented\n");
273 }
274
275
276 /***********************************************************************
277 * copy_context
278 *
279 * Copy a register context according to the flags.
280 */
281 void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
282 {
283 if (flags & CONTEXT_CONTROL)
284 {
285 to->Msr = from->Msr;
286 to->Ctr = from->Ctr;
287 to->Iar = from->Iar;
288 to->Lr = from->Lr;
289 to->Dar = from->Dar;
290 to->Dsisr = from->Dsisr;
291 to->Trap = from->Trap;
292 }
293 if (flags & CONTEXT_INTEGER)
294 {
295 to->Gpr0 = from->Gpr0;
296 to->Gpr1 = from->Gpr1;
297 to->Gpr2 = from->Gpr2;
298 to->Gpr3 = from->Gpr3;
299 to->Gpr4 = from->Gpr4;
300 to->Gpr5 = from->Gpr5;
301 to->Gpr6 = from->Gpr6;
302 to->Gpr7 = from->Gpr7;
303 to->Gpr8 = from->Gpr8;
304 to->Gpr9 = from->Gpr9;
305 to->Gpr10 = from->Gpr10;
306 to->Gpr11 = from->Gpr11;
307 to->Gpr12 = from->Gpr12;
308 to->Gpr13 = from->Gpr13;
309 to->Gpr14 = from->Gpr14;
310 to->Gpr15 = from->Gpr15;
311 to->Gpr16 = from->Gpr16;
312 to->Gpr17 = from->Gpr17;
313 to->Gpr18 = from->Gpr18;
314 to->Gpr19 = from->Gpr19;
315 to->Gpr20 = from->Gpr20;
316 to->Gpr21 = from->Gpr21;
317 to->Gpr22 = from->Gpr22;
318 to->Gpr23 = from->Gpr23;
319 to->Gpr24 = from->Gpr24;
320 to->Gpr25 = from->Gpr25;
321 to->Gpr26 = from->Gpr26;
322 to->Gpr27 = from->Gpr27;
323 to->Gpr28 = from->Gpr28;
324 to->Gpr29 = from->Gpr29;
325 to->Gpr30 = from->Gpr30;
326 to->Gpr31 = from->Gpr31;
327 to->Xer = from->Xer;
328 to->Cr = from->Cr;
329 }
330 if (flags & CONTEXT_FLOATING_POINT)
331 {
332 to->Fpr0 = from->Fpr0;
333 to->Fpr1 = from->Fpr1;
334 to->Fpr2 = from->Fpr2;
335 to->Fpr3 = from->Fpr3;
336 to->Fpr4 = from->Fpr4;
337 to->Fpr5 = from->Fpr5;
338 to->Fpr6 = from->Fpr6;
339 to->Fpr7 = from->Fpr7;
340 to->Fpr8 = from->Fpr8;
341 to->Fpr9 = from->Fpr9;
342 to->Fpr10 = from->Fpr10;
343 to->Fpr11 = from->Fpr11;
344 to->Fpr12 = from->Fpr12;
345 to->Fpr13 = from->Fpr13;
346 to->Fpr14 = from->Fpr14;
347 to->Fpr15 = from->Fpr15;
348 to->Fpr16 = from->Fpr16;
349 to->Fpr17 = from->Fpr17;
350 to->Fpr18 = from->Fpr18;
351 to->Fpr19 = from->Fpr19;
352 to->Fpr20 = from->Fpr20;
353 to->Fpr21 = from->Fpr21;
354 to->Fpr22 = from->Fpr22;
355 to->Fpr23 = from->Fpr23;
356 to->Fpr24 = from->Fpr24;
357 to->Fpr25 = from->Fpr25;
358 to->Fpr26 = from->Fpr26;
359 to->Fpr27 = from->Fpr27;
360 to->Fpr28 = from->Fpr28;
361 to->Fpr29 = from->Fpr29;
362 to->Fpr30 = from->Fpr30;
363 to->Fpr31 = from->Fpr31;
364 to->Fpscr = from->Fpscr;
365 }
366 }
367
368
369 /***********************************************************************
370 * context_to_server
371 *
372 * Convert a register context to the server format.
373 */
374 NTSTATUS context_to_server( context_t *to, const CONTEXT *from )
375 {
376 DWORD flags = from->ContextFlags; /* no CPU id? */
377
378 memset( to, 0, sizeof(*to) );
379 to->cpu = CPU_POWERPC;
380
381 if (flags & CONTEXT_CONTROL)
382 {
383 to->flags |= SERVER_CTX_CONTROL;
384 to->ctl.powerpc_regs.iar = from->Iar;
385 to->ctl.powerpc_regs.msr = from->Msr;
386 to->ctl.powerpc_regs.ctr = from->Ctr;
387 to->ctl.powerpc_regs.lr = from->Lr;
388 to->ctl.powerpc_regs.dar = from->Dar;
389 to->ctl.powerpc_regs.dsisr = from->Dsisr;
390 to->ctl.powerpc_regs.trap = from->Trap;
391 }
392 if (flags & CONTEXT_INTEGER)
393 {
394 to->flags |= SERVER_CTX_INTEGER;
395 to->integer.powerpc_regs.gpr[0] = from->Gpr0;
396 to->integer.powerpc_regs.gpr[1] = from->Gpr1;
397 to->integer.powerpc_regs.gpr[2] = from->Gpr2;
398 to->integer.powerpc_regs.gpr[3] = from->Gpr3;
399 to->integer.powerpc_regs.gpr[4] = from->Gpr4;
400 to->integer.powerpc_regs.gpr[5] = from->Gpr5;
401 to->integer.powerpc_regs.gpr[6] = from->Gpr6;
402 to->integer.powerpc_regs.gpr[7] = from->Gpr7;
403 to->integer.powerpc_regs.gpr[8] = from->Gpr8;
404 to->integer.powerpc_regs.gpr[9] = from->Gpr9;
405 to->integer.powerpc_regs.gpr[10] = from->Gpr10;
406 to->integer.powerpc_regs.gpr[11] = from->Gpr11;
407 to->integer.powerpc_regs.gpr[12] = from->Gpr12;
408 to->integer.powerpc_regs.gpr[13] = from->Gpr13;
409 to->integer.powerpc_regs.gpr[14] = from->Gpr14;
410 to->integer.powerpc_regs.gpr[15] = from->Gpr15;
411 to->integer.powerpc_regs.gpr[16] = from->Gpr16;
412 to->integer.powerpc_regs.gpr[17] = from->Gpr17;
413 to->integer.powerpc_regs.gpr[18] = from->Gpr18;
414 to->integer.powerpc_regs.gpr[19] = from->Gpr19;
415 to->integer.powerpc_regs.gpr[20] = from->Gpr20;
416 to->integer.powerpc_regs.gpr[21] = from->Gpr21;
417 to->integer.powerpc_regs.gpr[22] = from->Gpr22;
418 to->integer.powerpc_regs.gpr[23] = from->Gpr23;
419 to->integer.powerpc_regs.gpr[24] = from->Gpr24;
420 to->integer.powerpc_regs.gpr[25] = from->Gpr25;
421 to->integer.powerpc_regs.gpr[26] = from->Gpr26;
422 to->integer.powerpc_regs.gpr[27] = from->Gpr27;
423 to->integer.powerpc_regs.gpr[28] = from->Gpr28;
424 to->integer.powerpc_regs.gpr[29] = from->Gpr29;
425 to->integer.powerpc_regs.gpr[30] = from->Gpr30;
426 to->integer.powerpc_regs.gpr[31] = from->Gpr31;
427 to->integer.powerpc_regs.xer = from->Xer;
428 to->integer.powerpc_regs.cr = from->Cr;
429 }
430 if (flags & CONTEXT_FLOATING_POINT)
431 {
432 to->flags |= SERVER_CTX_FLOATING_POINT;
433 to->fp.powerpc_regs.fpr[0] = from->Fpr0;
434 to->fp.powerpc_regs.fpr[1] = from->Fpr1;
435 to->fp.powerpc_regs.fpr[2] = from->Fpr2;
436 to->fp.powerpc_regs.fpr[3] = from->Fpr3;
437 to->fp.powerpc_regs.fpr[4] = from->Fpr4;
438 to->fp.powerpc_regs.fpr[5] = from->Fpr5;
439 to->fp.powerpc_regs.fpr[6] = from->Fpr6;
440 to->fp.powerpc_regs.fpr[7] = from->Fpr7;
441 to->fp.powerpc_regs.fpr[8] = from->Fpr8;
442 to->fp.powerpc_regs.fpr[9] = from->Fpr9;
443 to->fp.powerpc_regs.fpr[10] = from->Fpr10;
444 to->fp.powerpc_regs.fpr[11] = from->Fpr11;
445 to->fp.powerpc_regs.fpr[12] = from->Fpr12;
446 to->fp.powerpc_regs.fpr[13] = from->Fpr13;
447 to->fp.powerpc_regs.fpr[14] = from->Fpr14;
448 to->fp.powerpc_regs.fpr[15] = from->Fpr15;
449 to->fp.powerpc_regs.fpr[16] = from->Fpr16;
450 to->fp.powerpc_regs.fpr[17] = from->Fpr17;
451 to->fp.powerpc_regs.fpr[18] = from->Fpr18;
452 to->fp.powerpc_regs.fpr[19] = from->Fpr19;
453 to->fp.powerpc_regs.fpr[20] = from->Fpr20;
454 to->fp.powerpc_regs.fpr[21] = from->Fpr21;
455 to->fp.powerpc_regs.fpr[22] = from->Fpr22;
456 to->fp.powerpc_regs.fpr[23] = from->Fpr23;
457 to->fp.powerpc_regs.fpr[24] = from->Fpr24;
458 to->fp.powerpc_regs.fpr[25] = from->Fpr25;
459 to->fp.powerpc_regs.fpr[26] = from->Fpr26;
460 to->fp.powerpc_regs.fpr[27] = from->Fpr27;
461 to->fp.powerpc_regs.fpr[28] = from->Fpr28;
462 to->fp.powerpc_regs.fpr[29] = from->Fpr29;
463 to->fp.powerpc_regs.fpr[30] = from->Fpr30;
464 to->fp.powerpc_regs.fpr[31] = from->Fpr31;
465 to->fp.powerpc_regs.fpscr = from->Fpscr;
466 }
467 return STATUS_SUCCESS;
468 }
469
470
471 /***********************************************************************
472 * context_from_server
473 *
474 * Convert a register context from the server format.
475 */
476 NTSTATUS context_from_server( CONTEXT *to, const context_t *from )
477 {
478 if (from->cpu != CPU_POWERPC) return STATUS_INVALID_PARAMETER;
479
480 to->ContextFlags = 0; /* no CPU id? */
481 if (from->flags & SERVER_CTX_CONTROL)
482 {
483 to->ContextFlags |= CONTEXT_CONTROL;
484 to->Msr = from->ctl.powerpc_regs.msr;
485 to->Ctr = from->ctl.powerpc_regs.ctr;
486 to->Iar = from->ctl.powerpc_regs.iar;
487 to->Lr = from->ctl.powerpc_regs.lr;
488 to->Dar = from->ctl.powerpc_regs.dar;
489 to->Dsisr = from->ctl.powerpc_regs.dsisr;
490 to->Trap = from->ctl.powerpc_regs.trap;
491 }
492 if (from->flags & SERVER_CTX_INTEGER)
493 {
494 to->ContextFlags |= CONTEXT_INTEGER;
495 to->Gpr0 = from->integer.powerpc_regs.gpr[0];
496 to->Gpr1 = from->integer.powerpc_regs.gpr[1];
497 to->Gpr2 = from->integer.powerpc_regs.gpr[2];
498 to->Gpr3 = from->integer.powerpc_regs.gpr[3];
499 to->Gpr4 = from->integer.powerpc_regs.gpr[4];
500 to->Gpr5 = from->integer.powerpc_regs.gpr[5];
501 to->Gpr6 = from->integer.powerpc_regs.gpr[6];
502 to->Gpr7 = from->integer.powerpc_regs.gpr[7];
503 to->Gpr8 = from->integer.powerpc_regs.gpr[8];
504 to->Gpr9 = from->integer.powerpc_regs.gpr[9];
505 to->Gpr10 = from->integer.powerpc_regs.gpr[10];
506 to->Gpr11 = from->integer.powerpc_regs.gpr[11];
507 to->Gpr12 = from->integer.powerpc_regs.gpr[12];
508 to->Gpr13 = from->integer.powerpc_regs.gpr[13];
509 to->Gpr14 = from->integer.powerpc_regs.gpr[14];
510 to->Gpr15 = from->integer.powerpc_regs.gpr[15];
511 to->Gpr16 = from->integer.powerpc_regs.gpr[16];
512 to->Gpr17 = from->integer.powerpc_regs.gpr[17];
513 to->Gpr18 = from->integer.powerpc_regs.gpr[18];
514 to->Gpr19 = from->integer.powerpc_regs.gpr[19];
515 to->Gpr20 = from->integer.powerpc_regs.gpr[20];
516 to->Gpr21 = from->integer.powerpc_regs.gpr[21];
517 to->Gpr22 = from->integer.powerpc_regs.gpr[22];
518 to->Gpr23 = from->integer.powerpc_regs.gpr[23];
519 to->Gpr24 = from->integer.powerpc_regs.gpr[24];
520 to->Gpr25 = from->integer.powerpc_regs.gpr[25];
521 to->Gpr26 = from->integer.powerpc_regs.gpr[26];
522 to->Gpr27 = from->integer.powerpc_regs.gpr[27];
523 to->Gpr28 = from->integer.powerpc_regs.gpr[28];
524 to->Gpr29 = from->integer.powerpc_regs.gpr[29];
525 to->Gpr30 = from->integer.powerpc_regs.gpr[30];
526 to->Gpr31 = from->integer.powerpc_regs.gpr[31];
527 to->Xer = from->integer.powerpc_regs.xer;
528 to->Cr = from->integer.powerpc_regs.cr;
529 }
530 if (from->flags & SERVER_CTX_FLOATING_POINT)
531 {
532 to->ContextFlags |= CONTEXT_FLOATING_POINT;
533 to->Fpr0 = from->fp.powerpc_regs.fpr[0];
534 to->Fpr1 = from->fp.powerpc_regs.fpr[1];
535 to->Fpr2 = from->fp.powerpc_regs.fpr[2];
536 to->Fpr3 = from->fp.powerpc_regs.fpr[3];
537 to->Fpr4 = from->fp.powerpc_regs.fpr[4];
538 to->Fpr5 = from->fp.powerpc_regs.fpr[5];
539 to->Fpr6 = from->fp.powerpc_regs.fpr[6];
540 to->Fpr7 = from->fp.powerpc_regs.fpr[7];
541 to->Fpr8 = from->fp.powerpc_regs.fpr[8];
542 to->Fpr9 = from->fp.powerpc_regs.fpr[9];
543 to->Fpr10 = from->fp.powerpc_regs.fpr[10];
544 to->Fpr11 = from->fp.powerpc_regs.fpr[11];
545 to->Fpr12 = from->fp.powerpc_regs.fpr[12];
546 to->Fpr13 = from->fp.powerpc_regs.fpr[13];
547 to->Fpr14 = from->fp.powerpc_regs.fpr[14];
548 to->Fpr15 = from->fp.powerpc_regs.fpr[15];
549 to->Fpr16 = from->fp.powerpc_regs.fpr[16];
550 to->Fpr17 = from->fp.powerpc_regs.fpr[17];
551 to->Fpr18 = from->fp.powerpc_regs.fpr[18];
552 to->Fpr19 = from->fp.powerpc_regs.fpr[19];
553 to->Fpr20 = from->fp.powerpc_regs.fpr[20];
554 to->Fpr21 = from->fp.powerpc_regs.fpr[21];
555 to->Fpr22 = from->fp.powerpc_regs.fpr[22];
556 to->Fpr23 = from->fp.powerpc_regs.fpr[23];
557 to->Fpr24 = from->fp.powerpc_regs.fpr[24];
558 to->Fpr25 = from->fp.powerpc_regs.fpr[25];
559 to->Fpr26 = from->fp.powerpc_regs.fpr[26];
560 to->Fpr27 = from->fp.powerpc_regs.fpr[27];
561 to->Fpr28 = from->fp.powerpc_regs.fpr[28];
562 to->Fpr29 = from->fp.powerpc_regs.fpr[29];
563 to->Fpr30 = from->fp.powerpc_regs.fpr[30];
564 to->Fpr31 = from->fp.powerpc_regs.fpr[31];
565 to->Fpscr = from->fp.powerpc_regs.fpscr;
566 }
567 return STATUS_SUCCESS;
568 }
569
570
571 /***********************************************************************
572 * NtSetContextThread (NTDLL.@)
573 * ZwSetContextThread (NTDLL.@)
574 */
575 NTSTATUS WINAPI NtSetContextThread( HANDLE handle, const CONTEXT *context )
576 {
577 NTSTATUS ret;
578 BOOL self;
579
580 ret = set_thread_context( handle, context, &self );
581 if (self && ret == STATUS_SUCCESS) set_cpu_context( context );
582 return ret;
583 }
584
585
586 /**********************************************************************
587 * call_stack_handlers
588 *
589 * Call the stack handlers chain.
590 */
591 static NTSTATUS call_stack_handlers( EXCEPTION_RECORD *rec, CONTEXT *context )
592 {
593 EXCEPTION_POINTERS ptrs;
594
595 FIXME( "not implemented on PowerPC\n" );
596
597 /* hack: call unhandled exception filter directly */
598 ptrs.ExceptionRecord = rec;
599 ptrs.ContextRecord = context;
600 unhandled_exception_filter( &ptrs );
601 return STATUS_UNHANDLED_EXCEPTION;
602 }
603
604
605 /*******************************************************************
606 * raise_exception
607 *
608 * Implementation of NtRaiseException.
609 */
610 static NTSTATUS raise_exception( EXCEPTION_RECORD *rec, CONTEXT *context, BOOL first_chance )
611 {
612 NTSTATUS status;
613
614 if (first_chance)
615 {
616 DWORD c;
617
618 TRACE( "code=%x flags=%x addr=%p ip=%x tid=%04x\n",
619 rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress,
620 context->Iar, GetCurrentThreadId() );
621 for (c = 0; c < rec->NumberParameters; c++)
622 TRACE( " info[%d]=%08lx\n", c, rec->ExceptionInformation[c] );
623 if (rec->ExceptionCode == EXCEPTION_WINE_STUB)
624 {
625 if (rec->ExceptionInformation[1] >> 16)
626 MESSAGE( "wine: Call from %p to unimplemented function %s.%s, aborting\n",
627 rec->ExceptionAddress,
628 (char*)rec->ExceptionInformation[0], (char*)rec->ExceptionInformation[1] );
629 else
630 MESSAGE( "wine: Call from %p to unimplemented function %s.%ld, aborting\n",
631 rec->ExceptionAddress,
632 (char*)rec->ExceptionInformation[0], rec->ExceptionInformation[1] );
633 }
634 else
635 {
636 /* FIXME: dump context */
637 }
638
639 status = send_debug_event( rec, TRUE, context );
640 if (status == DBG_CONTINUE || status == DBG_EXCEPTION_HANDLED)
641 return STATUS_SUCCESS;
642
643 if (call_vectored_handlers( rec, context ) == EXCEPTION_CONTINUE_EXECUTION)
644 return STATUS_SUCCESS;
645
646 if ((status = call_stack_handlers( rec, context )) != STATUS_UNHANDLED_EXCEPTION)
647 return status;
648 }
649
650 /* last chance exception */
651
652 status = send_debug_event( rec, FALSE, context );
653 if (status != DBG_CONTINUE)
654 {
655 if (rec->ExceptionFlags & EH_STACK_INVALID)
656 ERR("Exception frame is not in stack limits => unable to dispatch exception.\n");
657 else if (rec->ExceptionCode == STATUS_NONCONTINUABLE_EXCEPTION)
658 ERR("Process attempted to continue execution after noncontinuable exception.\n");
659 else
660 ERR("Unhandled exception code %x flags %x addr %p\n",
661 rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress );
662 NtTerminateProcess( NtCurrentProcess(), rec->ExceptionCode );
663 }
664 return STATUS_SUCCESS;
665 }
666
667
668 /**********************************************************************
669 * segv_handler
670 *
671 * Handler for SIGSEGV and related errors.
672 */
673 static void segv_handler( int signal, siginfo_t *siginfo, void *sigcontext )
674 {
675 EXCEPTION_RECORD rec;
676 CONTEXT context;
677 NTSTATUS status;
678
679 save_context( &context, sigcontext );
680
681 rec.ExceptionRecord = NULL;
682 rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
683 rec.ExceptionAddress = (LPVOID)context.Iar;
684 rec.NumberParameters = 0;
685
686 switch (signal)
687 {
688 case SIGSEGV:
689 switch (siginfo->si_code & 0xffff)
690 {
691 case SEGV_MAPERR:
692 case SEGV_ACCERR:
693 rec.NumberParameters = 2;
694 rec.ExceptionInformation[0] = 0; /* FIXME ? */
695 rec.ExceptionInformation[1] = (ULONG_PTR)siginfo->si_addr;
696 if (!(rec.ExceptionCode = virtual_handle_fault(siginfo->si_addr, rec.ExceptionInformation[0], FALSE)))
697 goto done;
698 break;
699 default:
700 FIXME("Unhandled SIGSEGV/%x\n",siginfo->si_code);
701 break;
702 }
703 break;
704 case SIGBUS:
705 switch (siginfo->si_code & 0xffff)
706 {
707 case BUS_ADRALN:
708 rec.ExceptionCode = EXCEPTION_DATATYPE_MISALIGNMENT;
709 break;
710 #ifdef BUS_ADRERR
711 case BUS_ADRERR:
712 #endif
713 #ifdef BUS_OBJERR
714 case BUS_OBJERR:
715 /* FIXME: correct for all cases ? */
716 rec.NumberParameters = 2;
717 rec.ExceptionInformation[0] = 0; /* FIXME ? */
718 rec.ExceptionInformation[1] = (ULONG_PTR)siginfo->si_addr;
719 if (!(rec.ExceptionCode = virtual_handle_fault(siginfo->si_addr, rec.ExceptionInformation[0], FALSE)))
720 goto done;
721 break;
722 #endif
723 default:
724 FIXME("Unhandled SIGBUS/%x\n",siginfo->si_code);
725 break;
726 }
727 break;
728 case SIGILL:
729 switch (siginfo->si_code & 0xffff)
730 {
731 case ILL_ILLOPC: /* illegal opcode */
732 #ifdef ILL_ILLOPN
733 case ILL_ILLOPN: /* illegal operand */
734 #endif
735 #ifdef ILL_ILLADR
736 case ILL_ILLADR: /* illegal addressing mode */
737 #endif
738 #ifdef ILL_ILLTRP
739 case ILL_ILLTRP: /* illegal trap */
740 #endif
741 #ifdef ILL_COPROC
742 case ILL_COPROC: /* coprocessor error */
743 #endif
744 rec.ExceptionCode = EXCEPTION_ILLEGAL_INSTRUCTION;
745 break;
746 case ILL_PRVOPC: /* privileged opcode */
747 #ifdef ILL_PRVREG
748 case ILL_PRVREG: /* privileged register */
749 #endif
750 rec.ExceptionCode = EXCEPTION_PRIV_INSTRUCTION;
751 break;
752 #ifdef ILL_BADSTK
753 case ILL_BADSTK: /* internal stack error */
754 rec.ExceptionCode = EXCEPTION_STACK_OVERFLOW;
755 break;
756 #endif
757 default:
758 FIXME("Unhandled SIGILL/%x\n", siginfo->si_code);
759 break;
760 }
761 break;
762 }
763 status = raise_exception( &rec, &context, TRUE );
764 if (status) raise_status( status, &rec );
765 done:
766 restore_context( &context, sigcontext );
767 }
768
769 /**********************************************************************
770 * trap_handler
771 *
772 * Handler for SIGTRAP.
773 */
774 static void trap_handler( int signal, siginfo_t *siginfo, void *sigcontext )
775 {
776 EXCEPTION_RECORD rec;
777 CONTEXT context;
778 NTSTATUS status;
779
780 save_context( &context, sigcontext );
781
782 rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
783 rec.ExceptionRecord = NULL;
784 rec.ExceptionAddress = (LPVOID)context.Iar;
785 rec.NumberParameters = 0;
786
787 /* FIXME: check if we might need to modify PC */
788 switch (siginfo->si_code & 0xffff)
789 {
790 #ifdef TRAP_BRKPT
791 case TRAP_BRKPT:
792 rec.ExceptionCode = EXCEPTION_BREAKPOINT;
793 break;
794 #endif
795 #ifdef TRAP_TRACE
796 case TRAP_TRACE:
797 rec.ExceptionCode = EXCEPTION_SINGLE_STEP;
798 break;
799 #endif
800 default:
801 FIXME("Unhandled SIGTRAP/%x\n", siginfo->si_code);
802 break;
803 }
804 status = raise_exception( &rec, &context, TRUE );
805 if (status) raise_status( status, &rec );
806 restore_context( &context, sigcontext );
807 }
808
809 /**********************************************************************
810 * fpe_handler
811 *
812 * Handler for SIGFPE.
813 */
814 static void fpe_handler( int signal, siginfo_t *siginfo, void *sigcontext )
815 {
816 EXCEPTION_RECORD rec;
817 CONTEXT context;
818 NTSTATUS status;
819
820 save_fpu( &context, sigcontext );
821 save_context( &context, sigcontext );
822
823 switch (siginfo->si_code & 0xffff )
824 {
825 #ifdef FPE_FLTSUB
826 case FPE_FLTSUB:
827 rec.ExceptionCode = EXCEPTION_ARRAY_BOUNDS_EXCEEDED;
828 break;
829 #endif
830 #ifdef FPE_INTDIV
831 case FPE_INTDIV:
832 rec.ExceptionCode = EXCEPTION_INT_DIVIDE_BY_ZERO;
833 break;
834 #endif
835 #ifdef FPE_INTOVF
836 case FPE_INTOVF:
837 rec.ExceptionCode = EXCEPTION_INT_OVERFLOW;
838 break;
839 #endif
840 #ifdef FPE_FLTDIV
841 case FPE_FLTDIV:
842 rec.ExceptionCode = EXCEPTION_FLT_DIVIDE_BY_ZERO;
843 break;
844 #endif
845 #ifdef FPE_FLTOVF
846 case FPE_FLTOVF:
847 rec.ExceptionCode = EXCEPTION_FLT_OVERFLOW;
848 break;
849 #endif
850 #ifdef FPE_FLTUND
851 case FPE_FLTUND:
852 rec.ExceptionCode = EXCEPTION_FLT_UNDERFLOW;
853 break;
854 #endif
855 #ifdef FPE_FLTRES
856 case FPE_FLTRES:
857 rec.ExceptionCode = EXCEPTION_FLT_INEXACT_RESULT;
858 break;
859 #endif
860 #ifdef FPE_FLTINV
861 case FPE_FLTINV:
862 #endif
863 default:
864 rec.ExceptionCode = EXCEPTION_FLT_INVALID_OPERATION;
865 break;
866 }
867 rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
868 rec.ExceptionRecord = NULL;
869 rec.ExceptionAddress = (LPVOID)context.Iar;
870 rec.NumberParameters = 0;
871 status = raise_exception( &rec, &context, TRUE );
872 if (status) raise_status( status, &rec );
873
874 restore_context( &context, sigcontext );
875 restore_fpu( &context, sigcontext );
876 }
877
878 /**********************************************************************
879 * int_handler
880 *
881 * Handler for SIGINT.
882 */
883 static void int_handler( int signal, siginfo_t *siginfo, void *sigcontext )
884 {
885 if (!dispatch_signal(SIGINT))
886 {
887 EXCEPTION_RECORD rec;
888 CONTEXT context;
889 NTSTATUS status;
890
891 save_context( &context, sigcontext );
892 rec.ExceptionCode = CONTROL_C_EXIT;
893 rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
894 rec.ExceptionRecord = NULL;
895 rec.ExceptionAddress = (LPVOID)context.Iar;
896 rec.NumberParameters = 0;
897 status = raise_exception( &rec, &context, TRUE );
898 if (status) raise_status( status, &rec );
899 restore_context( &context, sigcontext );
900 }
901 }
902
903
904 /**********************************************************************
905 * abrt_handler
906 *
907 * Handler for SIGABRT.
908 */
909 static void abrt_handler( int signal, siginfo_t *siginfo, void *sigcontext )
910 {
911 EXCEPTION_RECORD rec;
912 CONTEXT context;
913 NTSTATUS status;
914
915 save_context( &context, sigcontext );
916 rec.ExceptionCode = EXCEPTION_WINE_ASSERTION;
917 rec.ExceptionFlags = EH_NONCONTINUABLE;
918 rec.ExceptionRecord = NULL;
919 rec.ExceptionAddress = (LPVOID)context.Iar;
920 rec.NumberParameters = 0;
921 status = raise_exception( &rec, &context, TRUE );
922 if (status) raise_status( status, &rec );
923 restore_context( &context, sigcontext );
924 }
925
926
927 /**********************************************************************
928 * quit_handler
929 *
930 * Handler for SIGQUIT.
931 */
932 static void quit_handler( int signal, siginfo_t *siginfo, void *sigcontext )
933 {
934 abort_thread(0);
935 }
936
937
938 /**********************************************************************
939 * usr1_handler
940 *
941 * Handler for SIGUSR1, used to signal a thread that it got suspended.
942 */
943 static void usr1_handler( int signal, siginfo_t *siginfo, void *sigcontext )
944 {
945 CONTEXT context;
946
947 save_context( &context, sigcontext );
948 wait_suspend( &context );
949 restore_context( &context, sigcontext );
950 }
951
952
953 /***********************************************************************
954 * __wine_set_signal_handler (NTDLL.@)
955 */
956 int CDECL __wine_set_signal_handler(unsigned int sig, wine_signal_handler wsh)
957 {
958 if (sig >= sizeof(handlers) / sizeof(handlers[0])) return -1;
959 if (handlers[sig] != NULL) return -2;
960 handlers[sig] = wsh;
961 return 0;
962 }
963
964
965 /**********************************************************************
966 * signal_alloc_thread
967 */
968 NTSTATUS signal_alloc_thread( TEB **teb )
969 {
970 static size_t sigstack_zero_bits;
971 SIZE_T size;
972 NTSTATUS status;
973
974 if (!sigstack_zero_bits)
975 {
976 size_t min_size = page_size; /* this is just for the TEB, we don't use a signal stack yet */
977 /* find the first power of two not smaller than min_size */
978 while ((1u << sigstack_zero_bits) < min_size) sigstack_zero_bits++;
979 assert( sizeof(TEB) <= min_size );
980 }
981
982 size = 1 << sigstack_zero_bits;
983 *teb = NULL;
984 if (!(status = NtAllocateVirtualMemory( NtCurrentProcess(), (void **)teb, sigstack_zero_bits,
985 &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE )))
986 {
987 (*teb)->Tib.Self = &(*teb)->Tib;
988 (*teb)->Tib.ExceptionList = (void *)~0UL;
989 }
990 return status;
991 }
992
993
994 /**********************************************************************
995 * signal_free_thread
996 */
997 void signal_free_thread( TEB *teb )
998 {
999 SIZE_T size;
1000
1001 if (teb->DeallocationStack)
1002 {
1003 size = 0;
1004 NtFreeVirtualMemory( GetCurrentProcess(), &teb->DeallocationStack, &size, MEM_RELEASE );
1005 }
1006 size = 0;
1007 NtFreeVirtualMemory( NtCurrentProcess(), (void **)&teb, &size, MEM_RELEASE );
1008 }
1009
1010
1011 /**********************************************************************
1012 * signal_init_thread
1013 */
1014 void signal_init_thread( TEB *teb )
1015 {
1016 static BOOL init_done;
1017
1018 if (!init_done)
1019 {
1020 pthread_key_create( &teb_key, NULL );
1021 init_done = TRUE;
1022 }
1023 pthread_setspecific( teb_key, teb );
1024 }
1025
1026
1027 /**********************************************************************
1028 * signal_init_process
1029 */
1030 void signal_init_process(void)
1031 {
1032 struct sigaction sig_act;
1033
1034 sig_act.sa_mask = server_block_set;
1035 sig_act.sa_flags = SA_RESTART | SA_SIGINFO;
1036
1037 sig_act.sa_sigaction = int_handler;
1038 if (sigaction( SIGINT, &sig_act, NULL ) == -1) goto error;
1039 sig_act.sa_sigaction = fpe_handler;
1040 if (sigaction( SIGFPE, &sig_act, NULL ) == -1) goto error;
1041 sig_act.sa_sigaction = abrt_handler;
1042 if (sigaction( SIGABRT, &sig_act, NULL ) == -1) goto error;
1043 sig_act.sa_sigaction = quit_handler;
1044 if (sigaction( SIGQUIT, &sig_act, NULL ) == -1) goto error;
1045 sig_act.sa_sigaction = usr1_handler;
1046 if (sigaction( SIGUSR1, &sig_act, NULL ) == -1) goto error;
1047
1048 sig_act.sa_sigaction = segv_handler;
1049 if (sigaction( SIGSEGV, &sig_act, NULL ) == -1) goto error;
1050 if (sigaction( SIGILL, &sig_act, NULL ) == -1) goto error;
1051 #ifdef SIGBUS
1052 if (sigaction( SIGBUS, &sig_act, NULL ) == -1) goto error;
1053 #endif
1054
1055 #ifdef SIGTRAP
1056 sig_act.sa_sigaction = trap_handler;
1057 if (sigaction( SIGTRAP, &sig_act, NULL ) == -1) goto error;
1058 #endif
1059 return;
1060
1061 error:
1062 perror("sigaction");
1063 exit(1);
1064 }
1065
1066
1067 /**********************************************************************
1068 * __wine_enter_vm86 (NTDLL.@)
1069 */
1070 void __wine_enter_vm86( CONTEXT *context )
1071 {
1072 MESSAGE("vm86 mode not supported on this platform\n");
1073 }
1074
1075 /***********************************************************************
1076 * RtlUnwind (NTDLL.@)
1077 */
1078 void WINAPI RtlUnwind( PVOID pEndFrame, PVOID targetIp, PEXCEPTION_RECORD pRecord, PVOID retval )
1079 {
1080 FIXME( "Not implemented on PowerPC\n" );
1081 }
1082
1083 /*******************************************************************
1084 * NtRaiseException (NTDLL.@)
1085 */
1086 NTSTATUS WINAPI NtRaiseException( EXCEPTION_RECORD *rec, CONTEXT *context, BOOL first_chance )
1087 {
1088 NTSTATUS status = raise_exception( rec, context, first_chance );
1089 if (status == STATUS_SUCCESS) NtSetContextThread( GetCurrentThread(), context );
1090 return status;
1091 }
1092
1093 /***********************************************************************
1094 * RtlRaiseException (NTDLL.@)
1095 */
1096 void WINAPI RtlRaiseException( EXCEPTION_RECORD *rec )
1097 {
1098 CONTEXT context;
1099 NTSTATUS status;
1100
1101 RtlCaptureContext( &context );
1102 rec->ExceptionAddress = (void *)context.Iar;
1103 status = raise_exception( rec, &context, TRUE );
1104 if (status) raise_status( status, rec );
1105 }
1106
1107 /*************************************************************************
1108 * RtlCaptureStackBackTrace (NTDLL.@)
1109 */
1110 USHORT WINAPI RtlCaptureStackBackTrace( ULONG skip, ULONG count, PVOID *buffer, ULONG *hash )
1111 {
1112 FIXME( "(%d, %d, %p, %p) stub!\n", skip, count, buffer, hash );
1113 return 0;
1114 }
1115
1116 /***********************************************************************
1117 * call_thread_entry_point
1118 */
1119 void call_thread_entry_point( LPTHREAD_START_ROUTINE entry, void *arg )
1120 {
1121 __TRY
1122 {
1123 exit_thread( entry( arg ));
1124 }
1125 __EXCEPT(unhandled_exception_filter)
1126 {
1127 NtTerminateThread( GetCurrentThread(), GetExceptionCode() );
1128 }
1129 __ENDTRY
1130 abort(); /* should not be reached */
1131 }
1132
1133 /***********************************************************************
1134 * RtlExitUserThread (NTDLL.@)
1135 */
1136 void WINAPI RtlExitUserThread( ULONG status )
1137 {
1138 exit_thread( status );
1139 }
1140
1141 /***********************************************************************
1142 * abort_thread
1143 */
1144 void abort_thread( int status )
1145 {
1146 terminate_thread( status );
1147 }
1148
1149 /**********************************************************************
1150 * DbgBreakPoint (NTDLL.@)
1151 */
1152 void WINAPI DbgBreakPoint(void)
1153 {
1154 kill(getpid(), SIGTRAP);
1155 }
1156
1157 /**********************************************************************
1158 * DbgUserBreakPoint (NTDLL.@)
1159 */
1160 void WINAPI DbgUserBreakPoint(void)
1161 {
1162 kill(getpid(), SIGTRAP);
1163 }
1164
1165 /**********************************************************************
1166 * NtCurrentTeb (NTDLL.@)
1167 */
1168 TEB * WINAPI NtCurrentTeb(void)
1169 {
1170 return pthread_getspecific( teb_key );
1171 }
1172
1173 #endif /* __powerpc__ */
Windows API implementation