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Release 1.3.7.
[wine/gsoc-2012-control.git] / dlls / ntdll / signal_powerpc.c
blobf6de65ff6ab8bdfe9889d8fc3072570e3c071734
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 #ifdef HAVE_UNISTD_H
32 # include <unistd.h>
33 #endif
34
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
46 #ifdef HAVE_SYS_VM86_H
47 # include <sys/vm86.h>
48 #endif
49
50 #ifdef HAVE_SYS_SIGNAL_H
51 # include <sys/signal.h>
52 #endif
53
54 #include "ntstatus.h"
55 #define WIN32_NO_STATUS
56 #include "windef.h"
57 #include "winternl.h"
58 #include "wine/library.h"
59 #include "wine/exception.h"
60 #include "ntdll_misc.h"
61 #include "wine/debug.h"
62
63 WINE_DEFAULT_DEBUG_CHANNEL(seh);
64
65 static pthread_key_t teb_key;
66
67 /***********************************************************************
68 * signal context platform-specific definitions
69 */
70 #ifdef linux
71
72 /* All Registers access - only for local access */
73 # define REG_sig(reg_name, context) ((context)->uc_mcontext.regs->reg_name)
74
75
76 /* Gpr Registers access */
77 # define GPR_sig(reg_num, context) REG_sig(gpr[reg_num], context)
78
79 # define IAR_sig(context) REG_sig(nip, context) /* Program counter */
80 # define MSR_sig(context) REG_sig(msr, context) /* Machine State Register (Supervisor) */
81 # define CTR_sig(context) REG_sig(ctr, context) /* Count register */
82
83 # define XER_sig(context) REG_sig(xer, context) /* User's integer exception register */
84 # define LR_sig(context) REG_sig(link, context) /* Link register */
85 # define CR_sig(context) REG_sig(ccr, context) /* Condition register */
86
87 /* Float Registers access */
88 # define FLOAT_sig(reg_num, context) (((double*)((char*)((context)->uc_mcontext.regs+48*4)))[reg_num])
89
90 # define FPSCR_sig(context) (*(int*)((char*)((context)->uc_mcontext.regs+(48+32*2)*4)))
91
92 /* Exception Registers access */
93 # define DAR_sig(context) REG_sig(dar, context)
94 # define DSISR_sig(context) REG_sig(dsisr, context)
95 # define TRAP_sig(context) REG_sig(trap, context)
96
97 #endif /* linux */
98
99 #ifdef __APPLE__
100
101 # include <sys/ucontext.h>
102 # include <sys/types.h>
103
104 /* All Registers access - only for local access */
105 # define REG_sig(reg_name, context) ((context)->uc_mcontext->ss.reg_name)
106 # define FLOATREG_sig(reg_name, context) ((context)->uc_mcontext->fs.reg_name)
107 # define EXCEPREG_sig(reg_name, context) ((context)->uc_mcontext->es.reg_name)
108 # define VECREG_sig(reg_name, context) ((context)->uc_mcontext->vs.reg_name)
109
110 /* Gpr Registers access */
111 # define GPR_sig(reg_num, context) REG_sig(r##reg_num, context)
112
113 # define IAR_sig(context) REG_sig(srr0, context) /* Program counter */
114 # define MSR_sig(context) REG_sig(srr1, context) /* Machine State Register (Supervisor) */
115 # define CTR_sig(context) REG_sig(ctr, context)
116
117 # define XER_sig(context) REG_sig(xer, context) /* Link register */
118 # define LR_sig(context) REG_sig(lr, context) /* User's integer exception register */
119 # define CR_sig(context) REG_sig(cr, context) /* Condition register */
120
121 /* Float Registers access */
122 # define FLOAT_sig(reg_num, context) FLOATREG_sig(fpregs[reg_num], context)
123
124 # define FPSCR_sig(context) FLOATREG_sig(fpscr, context)
125
126 /* Exception Registers access */
127 # define DAR_sig(context) EXCEPREG_sig(dar, context) /* Fault registers for coredump */
128 # define DSISR_sig(context) EXCEPREG_sig(dsisr, context)
129 # define TRAP_sig(context) EXCEPREG_sig(exception, context) /* number of powerpc exception taken */
130
131 /* Signal defs : Those are undefined on darwin
132 SIGBUS
133 #undef BUS_ADRERR
134 #undef BUS_OBJERR
135 SIGILL
136 #undef ILL_ILLOPN
137 #undef ILL_ILLTRP
138 #undef ILL_ILLADR
139 #undef ILL_COPROC
140 #undef ILL_PRVREG
141 #undef ILL_BADSTK
142 SIGTRAP
143 #undef TRAP_BRKPT
144 #undef TRAP_TRACE
145 SIGFPE
146 */
147
148 #endif /* __APPLE__ */
149
150
151
152 typedef int (*wine_signal_handler)(unsigned int sig);
153
154 static wine_signal_handler handlers[256];
155
156 /***********************************************************************
157 * dispatch_signal
158 */
159 static inline int dispatch_signal(unsigned int sig)
160 {
161 if (handlers[sig] == NULL) return 0;
162 return handlers[sig](sig);
163 }
164
165 /***********************************************************************
166 * save_context
167 *
168 * Set the register values from a sigcontext.
169 */
170 static void save_context( CONTEXT *context, const ucontext_t *sigcontext )
171 {
172
173 #define C(x) context->Gpr##x = GPR_sig(x,sigcontext)
174 /* Save Gpr registers */
175 C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
176 C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
177 C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
178 C(31);
179 #undef C
180
181 context->Iar = IAR_sig(sigcontext); /* Program Counter */
182 context->Msr = MSR_sig(sigcontext); /* Machine State Register (Supervisor) */
183 context->Ctr = CTR_sig(sigcontext);
184
185 context->Xer = XER_sig(sigcontext);
186 context->Lr = LR_sig(sigcontext);
187 context->Cr = CR_sig(sigcontext);
188
189 /* Saving Exception regs */
190 context->Dar = DAR_sig(sigcontext);
191 context->Dsisr = DSISR_sig(sigcontext);
192 context->Trap = TRAP_sig(sigcontext);
193 }
194
195
196 /***********************************************************************
197 * restore_context
198 *
199 * Build a sigcontext from the register values.
200 */
201 static void restore_context( const CONTEXT *context, ucontext_t *sigcontext )
202 {
203
204 #define C(x) GPR_sig(x,sigcontext) = context->Gpr##x
205 C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
206 C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
207 C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
208 C(31);
209 #undef C
210
211 IAR_sig(sigcontext) = context->Iar; /* Program Counter */
212 MSR_sig(sigcontext) = context->Msr; /* Machine State Register (Supervisor) */
213 CTR_sig(sigcontext) = context->Ctr;
214
215 XER_sig(sigcontext) = context->Xer;
216 LR_sig(sigcontext) = context->Lr;
217 CR_sig(sigcontext) = context->Cr;
218
219 /* Setting Exception regs */
220 DAR_sig(sigcontext) = context->Dar;
221 DSISR_sig(sigcontext) = context->Dsisr;
222 TRAP_sig(sigcontext) = context->Trap;
223 }
224
225
226 /***********************************************************************
227 * save_fpu
228 *
229 * Set the FPU context from a sigcontext.
230 */
231 static inline void save_fpu( CONTEXT *context, const ucontext_t *sigcontext )
232 {
233 #define C(x) context->Fpr##x = FLOAT_sig(x,sigcontext)
234 C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
235 C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
236 C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
237 C(31);
238 #undef C
239 context->Fpscr = FPSCR_sig(sigcontext);
240 }
241
242
243 /***********************************************************************
244 * restore_fpu
245 *
246 * Restore the FPU context to a sigcontext.
247 */
248 static inline void restore_fpu( CONTEXT *context, const ucontext_t *sigcontext )
249 {
250 #define C(x) FLOAT_sig(x,sigcontext) = context->Fpr##x
251 C(0); C(1); C(2); C(3); C(4); C(5); C(6); C(7); C(8); C(9); C(10);
252 C(11); C(12); C(13); C(14); C(15); C(16); C(17); C(18); C(19); C(20);
253 C(21); C(22); C(23); C(24); C(25); C(26); C(27); C(28); C(29); C(30);
254 C(31);
255 #undef C
256 FPSCR_sig(sigcontext) = context->Fpscr;
257 }
258
259
260 /***********************************************************************
261 * RtlCaptureContext (NTDLL.@)
262 */
263 void WINAPI RtlCaptureContext( CONTEXT *context )
264 {
265 FIXME("not implemented\n");
266 memset( context, 0, sizeof(*context) );
267 }
268
269
270 /***********************************************************************
271 * set_cpu_context
272 *
273 * Set the new CPU context.
274 */
275 void set_cpu_context( const CONTEXT *context )
276 {
277 FIXME("not implemented\n");
278 }
279
280
281 /***********************************************************************
282 * copy_context
283 *
284 * Copy a register context according to the flags.
285 */
286 void copy_context( CONTEXT *to, const CONTEXT *from, DWORD flags )
287 {
288 if (flags & CONTEXT_CONTROL)
289 {
290 to->Msr = from->Msr;
291 to->Ctr = from->Ctr;
292 to->Iar = from->Iar;
293 to->Lr = from->Lr;
294 to->Dar = from->Dar;
295 to->Dsisr = from->Dsisr;
296 to->Trap = from->Trap;
297 }
298 if (flags & CONTEXT_INTEGER)
299 {
300 to->Gpr0 = from->Gpr0;
301 to->Gpr1 = from->Gpr1;
302 to->Gpr2 = from->Gpr2;
303 to->Gpr3 = from->Gpr3;
304 to->Gpr4 = from->Gpr4;
305 to->Gpr5 = from->Gpr5;
306 to->Gpr6 = from->Gpr6;
307 to->Gpr7 = from->Gpr7;
308 to->Gpr8 = from->Gpr8;
309 to->Gpr9 = from->Gpr9;
310 to->Gpr10 = from->Gpr10;
311 to->Gpr11 = from->Gpr11;
312 to->Gpr12 = from->Gpr12;
313 to->Gpr13 = from->Gpr13;
314 to->Gpr14 = from->Gpr14;
315 to->Gpr15 = from->Gpr15;
316 to->Gpr16 = from->Gpr16;
317 to->Gpr17 = from->Gpr17;
318 to->Gpr18 = from->Gpr18;
319 to->Gpr19 = from->Gpr19;
320 to->Gpr20 = from->Gpr20;
321 to->Gpr21 = from->Gpr21;
322 to->Gpr22 = from->Gpr22;
323 to->Gpr23 = from->Gpr23;
324 to->Gpr24 = from->Gpr24;
325 to->Gpr25 = from->Gpr25;
326 to->Gpr26 = from->Gpr26;
327 to->Gpr27 = from->Gpr27;
328 to->Gpr28 = from->Gpr28;
329 to->Gpr29 = from->Gpr29;
330 to->Gpr30 = from->Gpr30;
331 to->Gpr31 = from->Gpr31;
332 to->Xer = from->Xer;
333 to->Cr = from->Cr;
334 }
335 if (flags & CONTEXT_FLOATING_POINT)
336 {
337 to->Fpr0 = from->Fpr0;
338 to->Fpr1 = from->Fpr1;
339 to->Fpr2 = from->Fpr2;
340 to->Fpr3 = from->Fpr3;
341 to->Fpr4 = from->Fpr4;
342 to->Fpr5 = from->Fpr5;
343 to->Fpr6 = from->Fpr6;
344 to->Fpr7 = from->Fpr7;
345 to->Fpr8 = from->Fpr8;
346 to->Fpr9 = from->Fpr9;
347 to->Fpr10 = from->Fpr10;
348 to->Fpr11 = from->Fpr11;
349 to->Fpr12 = from->Fpr12;
350 to->Fpr13 = from->Fpr13;
351 to->Fpr14 = from->Fpr14;
352 to->Fpr15 = from->Fpr15;
353 to->Fpr16 = from->Fpr16;
354 to->Fpr17 = from->Fpr17;
355 to->Fpr18 = from->Fpr18;
356 to->Fpr19 = from->Fpr19;
357 to->Fpr20 = from->Fpr20;
358 to->Fpr21 = from->Fpr21;
359 to->Fpr22 = from->Fpr22;
360 to->Fpr23 = from->Fpr23;
361 to->Fpr24 = from->Fpr24;
362 to->Fpr25 = from->Fpr25;
363 to->Fpr26 = from->Fpr26;
364 to->Fpr27 = from->Fpr27;
365 to->Fpr28 = from->Fpr28;
366 to->Fpr29 = from->Fpr29;
367 to->Fpr30 = from->Fpr30;
368 to->Fpr31 = from->Fpr31;
369 to->Fpscr = from->Fpscr;
370 }
371 }
372
373
374 /***********************************************************************
375 * context_to_server
376 *
377 * Convert a register context to the server format.
378 */
379 NTSTATUS context_to_server( context_t *to, const CONTEXT *from )
380 {
381 DWORD flags = from->ContextFlags; /* no CPU id? */
382
383 memset( to, 0, sizeof(*to) );
384 to->cpu = CPU_POWERPC;
385
386 if (flags & CONTEXT_CONTROL)
387 {
388 to->flags |= SERVER_CTX_CONTROL;
389 to->ctl.powerpc_regs.iar = from->Iar;
390 to->ctl.powerpc_regs.msr = from->Msr;
391 to->ctl.powerpc_regs.ctr = from->Ctr;
392 to->ctl.powerpc_regs.lr = from->Lr;
393 to->ctl.powerpc_regs.dar = from->Dar;
394 to->ctl.powerpc_regs.dsisr = from->Dsisr;
395 to->ctl.powerpc_regs.trap = from->Trap;
396 }
397 if (flags & CONTEXT_INTEGER)
398 {
399 to->flags |= SERVER_CTX_INTEGER;
400 to->integer.powerpc_regs.gpr[0] = from->Gpr0;
401 to->integer.powerpc_regs.gpr[1] = from->Gpr1;
402 to->integer.powerpc_regs.gpr[2] = from->Gpr2;
403 to->integer.powerpc_regs.gpr[3] = from->Gpr3;
404 to->integer.powerpc_regs.gpr[4] = from->Gpr4;
405 to->integer.powerpc_regs.gpr[5] = from->Gpr5;
406 to->integer.powerpc_regs.gpr[6] = from->Gpr6;
407 to->integer.powerpc_regs.gpr[7] = from->Gpr7;
408 to->integer.powerpc_regs.gpr[8] = from->Gpr8;
409 to->integer.powerpc_regs.gpr[9] = from->Gpr9;
410 to->integer.powerpc_regs.gpr[10] = from->Gpr10;
411 to->integer.powerpc_regs.gpr[11] = from->Gpr11;
412 to->integer.powerpc_regs.gpr[12] = from->Gpr12;
413 to->integer.powerpc_regs.gpr[13] = from->Gpr13;
414 to->integer.powerpc_regs.gpr[14] = from->Gpr14;
415 to->integer.powerpc_regs.gpr[15] = from->Gpr15;
416 to->integer.powerpc_regs.gpr[16] = from->Gpr16;
417 to->integer.powerpc_regs.gpr[17] = from->Gpr17;
418 to->integer.powerpc_regs.gpr[18] = from->Gpr18;
419 to->integer.powerpc_regs.gpr[19] = from->Gpr19;
420 to->integer.powerpc_regs.gpr[20] = from->Gpr20;
421 to->integer.powerpc_regs.gpr[21] = from->Gpr21;
422 to->integer.powerpc_regs.gpr[22] = from->Gpr22;
423 to->integer.powerpc_regs.gpr[23] = from->Gpr23;
424 to->integer.powerpc_regs.gpr[24] = from->Gpr24;
425 to->integer.powerpc_regs.gpr[25] = from->Gpr25;
426 to->integer.powerpc_regs.gpr[26] = from->Gpr26;
427 to->integer.powerpc_regs.gpr[27] = from->Gpr27;
428 to->integer.powerpc_regs.gpr[28] = from->Gpr28;
429 to->integer.powerpc_regs.gpr[29] = from->Gpr29;
430 to->integer.powerpc_regs.gpr[30] = from->Gpr30;
431 to->integer.powerpc_regs.gpr[31] = from->Gpr31;
432 to->integer.powerpc_regs.xer = from->Xer;
433 to->integer.powerpc_regs.cr = from->Cr;
434 }
435 if (flags & CONTEXT_FLOATING_POINT)
436 {
437 to->flags |= SERVER_CTX_FLOATING_POINT;
438 to->fp.powerpc_regs.fpr[0] = from->Fpr0;
439 to->fp.powerpc_regs.fpr[1] = from->Fpr1;
440 to->fp.powerpc_regs.fpr[2] = from->Fpr2;
441 to->fp.powerpc_regs.fpr[3] = from->Fpr3;
442 to->fp.powerpc_regs.fpr[4] = from->Fpr4;
443 to->fp.powerpc_regs.fpr[5] = from->Fpr5;
444 to->fp.powerpc_regs.fpr[6] = from->Fpr6;
445 to->fp.powerpc_regs.fpr[7] = from->Fpr7;
446 to->fp.powerpc_regs.fpr[8] = from->Fpr8;
447 to->fp.powerpc_regs.fpr[9] = from->Fpr9;
448 to->fp.powerpc_regs.fpr[10] = from->Fpr10;
449 to->fp.powerpc_regs.fpr[11] = from->Fpr11;
450 to->fp.powerpc_regs.fpr[12] = from->Fpr12;
451 to->fp.powerpc_regs.fpr[13] = from->Fpr13;
452 to->fp.powerpc_regs.fpr[14] = from->Fpr14;
453 to->fp.powerpc_regs.fpr[15] = from->Fpr15;
454 to->fp.powerpc_regs.fpr[16] = from->Fpr16;
455 to->fp.powerpc_regs.fpr[17] = from->Fpr17;
456 to->fp.powerpc_regs.fpr[18] = from->Fpr18;
457 to->fp.powerpc_regs.fpr[19] = from->Fpr19;
458 to->fp.powerpc_regs.fpr[20] = from->Fpr20;
459 to->fp.powerpc_regs.fpr[21] = from->Fpr21;
460 to->fp.powerpc_regs.fpr[22] = from->Fpr22;
461 to->fp.powerpc_regs.fpr[23] = from->Fpr23;
462 to->fp.powerpc_regs.fpr[24] = from->Fpr24;
463 to->fp.powerpc_regs.fpr[25] = from->Fpr25;
464 to->fp.powerpc_regs.fpr[26] = from->Fpr26;
465 to->fp.powerpc_regs.fpr[27] = from->Fpr27;
466 to->fp.powerpc_regs.fpr[28] = from->Fpr28;
467 to->fp.powerpc_regs.fpr[29] = from->Fpr29;
468 to->fp.powerpc_regs.fpr[30] = from->Fpr30;
469 to->fp.powerpc_regs.fpr[31] = from->Fpr31;
470 to->fp.powerpc_regs.fpscr = from->Fpscr;
471 }
472 return STATUS_SUCCESS;
473 }
474
475
476 /***********************************************************************
477 * context_from_server
478 *
479 * Convert a register context from the server format.
480 */
481 NTSTATUS context_from_server( CONTEXT *to, const context_t *from )
482 {
483 if (from->cpu != CPU_POWERPC) return STATUS_INVALID_PARAMETER;
484
485 to->ContextFlags = 0; /* no CPU id? */
486 if (from->flags & SERVER_CTX_CONTROL)
487 {
488 to->ContextFlags |= CONTEXT_CONTROL;
489 to->Msr = from->ctl.powerpc_regs.msr;
490 to->Ctr = from->ctl.powerpc_regs.ctr;
491 to->Iar = from->ctl.powerpc_regs.iar;
492 to->Lr = from->ctl.powerpc_regs.lr;
493 to->Dar = from->ctl.powerpc_regs.dar;
494 to->Dsisr = from->ctl.powerpc_regs.dsisr;
495 to->Trap = from->ctl.powerpc_regs.trap;
496 }
497 if (from->flags & SERVER_CTX_INTEGER)
498 {
499 to->ContextFlags |= CONTEXT_INTEGER;
500 to->Gpr0 = from->integer.powerpc_regs.gpr[0];
501 to->Gpr1 = from->integer.powerpc_regs.gpr[1];
502 to->Gpr2 = from->integer.powerpc_regs.gpr[2];
503 to->Gpr3 = from->integer.powerpc_regs.gpr[3];
504 to->Gpr4 = from->integer.powerpc_regs.gpr[4];
505 to->Gpr5 = from->integer.powerpc_regs.gpr[5];
506 to->Gpr6 = from->integer.powerpc_regs.gpr[6];
507 to->Gpr7 = from->integer.powerpc_regs.gpr[7];
508 to->Gpr8 = from->integer.powerpc_regs.gpr[8];
509 to->Gpr9 = from->integer.powerpc_regs.gpr[9];
510 to->Gpr10 = from->integer.powerpc_regs.gpr[10];
511 to->Gpr11 = from->integer.powerpc_regs.gpr[11];
512 to->Gpr12 = from->integer.powerpc_regs.gpr[12];
513 to->Gpr13 = from->integer.powerpc_regs.gpr[13];
514 to->Gpr14 = from->integer.powerpc_regs.gpr[14];
515 to->Gpr15 = from->integer.powerpc_regs.gpr[15];
516 to->Gpr16 = from->integer.powerpc_regs.gpr[16];
517 to->Gpr17 = from->integer.powerpc_regs.gpr[17];
518 to->Gpr18 = from->integer.powerpc_regs.gpr[18];
519 to->Gpr19 = from->integer.powerpc_regs.gpr[19];
520 to->Gpr20 = from->integer.powerpc_regs.gpr[20];
521 to->Gpr21 = from->integer.powerpc_regs.gpr[21];
522 to->Gpr22 = from->integer.powerpc_regs.gpr[22];
523 to->Gpr23 = from->integer.powerpc_regs.gpr[23];
524 to->Gpr24 = from->integer.powerpc_regs.gpr[24];
525 to->Gpr25 = from->integer.powerpc_regs.gpr[25];
526 to->Gpr26 = from->integer.powerpc_regs.gpr[26];
527 to->Gpr27 = from->integer.powerpc_regs.gpr[27];
528 to->Gpr28 = from->integer.powerpc_regs.gpr[28];
529 to->Gpr29 = from->integer.powerpc_regs.gpr[29];
530 to->Gpr30 = from->integer.powerpc_regs.gpr[30];
531 to->Gpr31 = from->integer.powerpc_regs.gpr[31];
532 to->Xer = from->integer.powerpc_regs.xer;
533 to->Cr = from->integer.powerpc_regs.cr;
534 }
535 if (from->flags & SERVER_CTX_FLOATING_POINT)
536 {
537 to->ContextFlags |= CONTEXT_FLOATING_POINT;
538 to->Fpr0 = from->fp.powerpc_regs.fpr[0];
539 to->Fpr1 = from->fp.powerpc_regs.fpr[1];
540 to->Fpr2 = from->fp.powerpc_regs.fpr[2];
541 to->Fpr3 = from->fp.powerpc_regs.fpr[3];
542 to->Fpr4 = from->fp.powerpc_regs.fpr[4];
543 to->Fpr5 = from->fp.powerpc_regs.fpr[5];
544 to->Fpr6 = from->fp.powerpc_regs.fpr[6];
545 to->Fpr7 = from->fp.powerpc_regs.fpr[7];
546 to->Fpr8 = from->fp.powerpc_regs.fpr[8];
547 to->Fpr9 = from->fp.powerpc_regs.fpr[9];
548 to->Fpr10 = from->fp.powerpc_regs.fpr[10];
549 to->Fpr11 = from->fp.powerpc_regs.fpr[11];
550 to->Fpr12 = from->fp.powerpc_regs.fpr[12];
551 to->Fpr13 = from->fp.powerpc_regs.fpr[13];
552 to->Fpr14 = from->fp.powerpc_regs.fpr[14];
553 to->Fpr15 = from->fp.powerpc_regs.fpr[15];
554 to->Fpr16 = from->fp.powerpc_regs.fpr[16];
555 to->Fpr17 = from->fp.powerpc_regs.fpr[17];
556 to->Fpr18 = from->fp.powerpc_regs.fpr[18];
557 to->Fpr19 = from->fp.powerpc_regs.fpr[19];
558 to->Fpr20 = from->fp.powerpc_regs.fpr[20];
559 to->Fpr21 = from->fp.powerpc_regs.fpr[21];
560 to->Fpr22 = from->fp.powerpc_regs.fpr[22];
561 to->Fpr23 = from->fp.powerpc_regs.fpr[23];
562 to->Fpr24 = from->fp.powerpc_regs.fpr[24];
563 to->Fpr25 = from->fp.powerpc_regs.fpr[25];
564 to->Fpr26 = from->fp.powerpc_regs.fpr[26];
565 to->Fpr27 = from->fp.powerpc_regs.fpr[27];
566 to->Fpr28 = from->fp.powerpc_regs.fpr[28];
567 to->Fpr29 = from->fp.powerpc_regs.fpr[29];
568 to->Fpr30 = from->fp.powerpc_regs.fpr[30];
569 to->Fpr31 = from->fp.powerpc_regs.fpr[31];
570 to->Fpscr = from->fp.powerpc_regs.fpscr;
571 }
572 return STATUS_SUCCESS;
573 }
574
575
576 /**********************************************************************
577 * call_stack_handlers
578 *
579 * Call the stack handlers chain.
580 */
581 static NTSTATUS call_stack_handlers( EXCEPTION_RECORD *rec, CONTEXT *context )
582 {
583 EXCEPTION_POINTERS ptrs;
584
585 FIXME( "not implemented on PowerPC\n" );
586
587 /* hack: call unhandled exception filter directly */
588 ptrs.ExceptionRecord = rec;
589 ptrs.ContextRecord = context;
590 unhandled_exception_filter( &ptrs );
591 return STATUS_UNHANDLED_EXCEPTION;
592 }
593
594
595 /*******************************************************************
596 * raise_exception
597 *
598 * Implementation of NtRaiseException.
599 */
600 static NTSTATUS raise_exception( EXCEPTION_RECORD *rec, CONTEXT *context, BOOL first_chance )
601 {
602 NTSTATUS status;
603
604 if (first_chance)
605 {
606 DWORD c;
607
608 TRACE( "code=%x flags=%x addr=%p ip=%x tid=%04x\n",
609 rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress,
610 context->Iar, GetCurrentThreadId() );
611 for (c = 0; c < rec->NumberParameters; c++)
612 TRACE( " info[%d]=%08lx\n", c, rec->ExceptionInformation[c] );
613 if (rec->ExceptionCode == EXCEPTION_WINE_STUB)
614 {
615 if (rec->ExceptionInformation[1] >> 16)
616 MESSAGE( "wine: Call from %p to unimplemented function %s.%s, aborting\n",
617 rec->ExceptionAddress,
618 (char*)rec->ExceptionInformation[0], (char*)rec->ExceptionInformation[1] );
619 else
620 MESSAGE( "wine: Call from %p to unimplemented function %s.%ld, aborting\n",
621 rec->ExceptionAddress,
622 (char*)rec->ExceptionInformation[0], rec->ExceptionInformation[1] );
623 }
624 else
625 {
626 /* FIXME: dump context */
627 }
628
629 status = send_debug_event( rec, TRUE, context );
630 if (status == DBG_CONTINUE || status == DBG_EXCEPTION_HANDLED)
631 return STATUS_SUCCESS;
632
633 if (call_vectored_handlers( rec, context ) == EXCEPTION_CONTINUE_EXECUTION)
634 return STATUS_SUCCESS;
635
636 if ((status = call_stack_handlers( rec, context )) != STATUS_UNHANDLED_EXCEPTION)
637 return status;
638 }
639
640 /* last chance exception */
641
642 status = send_debug_event( rec, FALSE, context );
643 if (status != DBG_CONTINUE)
644 {
645 if (rec->ExceptionFlags & EH_STACK_INVALID)
646 ERR("Exception frame is not in stack limits => unable to dispatch exception.\n");
647 else if (rec->ExceptionCode == STATUS_NONCONTINUABLE_EXCEPTION)
648 ERR("Process attempted to continue execution after noncontinuable exception.\n");
649 else
650 ERR("Unhandled exception code %x flags %x addr %p\n",
651 rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress );
652 NtTerminateProcess( NtCurrentProcess(), rec->ExceptionCode );
653 }
654 return STATUS_SUCCESS;
655 }
656
657
658 /**********************************************************************
659 * segv_handler
660 *
661 * Handler for SIGSEGV and related errors.
662 */
663 static void segv_handler( int signal, siginfo_t *siginfo, void *sigcontext )
664 {
665 EXCEPTION_RECORD rec;
666 CONTEXT context;
667 NTSTATUS status;
668
669 save_context( &context, sigcontext );
670
671 rec.ExceptionRecord = NULL;
672 rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
673 rec.ExceptionAddress = (LPVOID)context.Iar;
674 rec.NumberParameters = 0;
675
676 switch (signal)
677 {
678 case SIGSEGV:
679 switch (siginfo->si_code & 0xffff)
680 {
681 case SEGV_MAPERR:
682 case SEGV_ACCERR:
683 rec.NumberParameters = 2;
684 rec.ExceptionInformation[0] = 0; /* FIXME ? */
685 rec.ExceptionInformation[1] = (ULONG_PTR)siginfo->si_addr;
686 if (!(rec.ExceptionCode = virtual_handle_fault(siginfo->si_addr, rec.ExceptionInformation[0])))
687 goto done;
688 break;
689 default:
690 FIXME("Unhandled SIGSEGV/%x\n",siginfo->si_code);
691 break;
692 }
693 break;
694 case SIGBUS:
695 switch (siginfo->si_code & 0xffff)
696 {
697 case BUS_ADRALN:
698 rec.ExceptionCode = EXCEPTION_DATATYPE_MISALIGNMENT;
699 break;
700 #ifdef BUS_ADRERR
701 case BUS_ADRERR:
702 #endif
703 #ifdef BUS_OBJERR
704 case BUS_OBJERR:
705 /* FIXME: correct for all cases ? */
706 rec.NumberParameters = 2;
707 rec.ExceptionInformation[0] = 0; /* FIXME ? */
708 rec.ExceptionInformation[1] = (ULONG_PTR)siginfo->si_addr;
709 if (!(rec.ExceptionCode = virtual_handle_fault(siginfo->si_addr, rec.ExceptionInformation[0])))
710 goto done;
711 break;
712 #endif
713 default:
714 FIXME("Unhandled SIGBUS/%x\n",siginfo->si_code);
715 break;
716 }
717 break;
718 case SIGILL:
719 switch (siginfo->si_code & 0xffff)
720 {
721 case ILL_ILLOPC: /* illegal opcode */
722 #ifdef ILL_ILLOPN
723 case ILL_ILLOPN: /* illegal operand */
724 #endif
725 #ifdef ILL_ILLADR
726 case ILL_ILLADR: /* illegal addressing mode */
727 #endif
728 #ifdef ILL_ILLTRP
729 case ILL_ILLTRP: /* illegal trap */
730 #endif
731 #ifdef ILL_COPROC
732 case ILL_COPROC: /* coprocessor error */
733 #endif
734 rec.ExceptionCode = EXCEPTION_ILLEGAL_INSTRUCTION;
735 break;
736 case ILL_PRVOPC: /* privileged opcode */
737 #ifdef ILL_PRVREG
738 case ILL_PRVREG: /* privileged register */
739 #endif
740 rec.ExceptionCode = EXCEPTION_PRIV_INSTRUCTION;
741 break;
742 #ifdef ILL_BADSTK
743 case ILL_BADSTK: /* internal stack error */
744 rec.ExceptionCode = EXCEPTION_STACK_OVERFLOW;
745 break;
746 #endif
747 default:
748 FIXME("Unhandled SIGILL/%x\n", siginfo->si_code);
749 break;
750 }
751 break;
752 }
753 status = raise_exception( &rec, &context, TRUE );
754 if (status) raise_status( status, &rec );
755 done:
756 restore_context( &context, sigcontext );
757 }
758
759 /**********************************************************************
760 * trap_handler
761 *
762 * Handler for SIGTRAP.
763 */
764 static void trap_handler( int signal, siginfo_t *siginfo, void *sigcontext )
765 {
766 EXCEPTION_RECORD rec;
767 CONTEXT context;
768 NTSTATUS status;
769
770 save_context( &context, sigcontext );
771
772 rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
773 rec.ExceptionRecord = NULL;
774 rec.ExceptionAddress = (LPVOID)context.Iar;
775 rec.NumberParameters = 0;
776
777 /* FIXME: check if we might need to modify PC */
778 switch (siginfo->si_code & 0xffff)
779 {
780 #ifdef TRAP_BRKPT
781 case TRAP_BRKPT:
782 rec.ExceptionCode = EXCEPTION_BREAKPOINT;
783 break;
784 #endif
785 #ifdef TRAP_TRACE
786 case TRAP_TRACE:
787 rec.ExceptionCode = EXCEPTION_SINGLE_STEP;
788 break;
789 #endif
790 default:
791 FIXME("Unhandled SIGTRAP/%x\n", siginfo->si_code);
792 break;
793 }
794 status = raise_exception( &rec, &context, TRUE );
795 if (status) raise_status( status, &rec );
796 restore_context( &context, sigcontext );
797 }
798
799 /**********************************************************************
800 * fpe_handler
801 *
802 * Handler for SIGFPE.
803 */
804 static void fpe_handler( int signal, siginfo_t *siginfo, void *sigcontext )
805 {
806 EXCEPTION_RECORD rec;
807 CONTEXT context;
808 NTSTATUS status;
809
810 save_fpu( &context, sigcontext );
811 save_context( &context, sigcontext );
812
813 switch (siginfo->si_code & 0xffff )
814 {
815 #ifdef FPE_FLTSUB
816 case FPE_FLTSUB:
817 rec.ExceptionCode = EXCEPTION_ARRAY_BOUNDS_EXCEEDED;
818 break;
819 #endif
820 #ifdef FPE_INTDIV
821 case FPE_INTDIV:
822 rec.ExceptionCode = EXCEPTION_INT_DIVIDE_BY_ZERO;
823 break;
824 #endif
825 #ifdef FPE_INTOVF
826 case FPE_INTOVF:
827 rec.ExceptionCode = EXCEPTION_INT_OVERFLOW;
828 break;
829 #endif
830 #ifdef FPE_FLTDIV
831 case FPE_FLTDIV:
832 rec.ExceptionCode = EXCEPTION_FLT_DIVIDE_BY_ZERO;
833 break;
834 #endif
835 #ifdef FPE_FLTOVF
836 case FPE_FLTOVF:
837 rec.ExceptionCode = EXCEPTION_FLT_OVERFLOW;
838 break;
839 #endif
840 #ifdef FPE_FLTUND
841 case FPE_FLTUND:
842 rec.ExceptionCode = EXCEPTION_FLT_UNDERFLOW;
843 break;
844 #endif
845 #ifdef FPE_FLTRES
846 case FPE_FLTRES:
847 rec.ExceptionCode = EXCEPTION_FLT_INEXACT_RESULT;
848 break;
849 #endif
850 #ifdef FPE_FLTINV
851 case FPE_FLTINV:
852 #endif
853 default:
854 rec.ExceptionCode = EXCEPTION_FLT_INVALID_OPERATION;
855 break;
856 }
857 rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
858 rec.ExceptionRecord = NULL;
859 rec.ExceptionAddress = (LPVOID)context.Iar;
860 rec.NumberParameters = 0;
861 status = raise_exception( &rec, &context, TRUE );
862 if (status) raise_status( status, &rec );
863
864 restore_context( &context, sigcontext );
865 restore_fpu( &context, sigcontext );
866 }
867
868 /**********************************************************************
869 * int_handler
870 *
871 * Handler for SIGINT.
872 */
873 static void int_handler( int signal, siginfo_t *siginfo, void *sigcontext )
874 {
875 if (!dispatch_signal(SIGINT))
876 {
877 EXCEPTION_RECORD rec;
878 CONTEXT context;
879 NTSTATUS status;
880
881 save_context( &context, sigcontext );
882 rec.ExceptionCode = CONTROL_C_EXIT;
883 rec.ExceptionFlags = EXCEPTION_CONTINUABLE;
884 rec.ExceptionRecord = NULL;
885 rec.ExceptionAddress = (LPVOID)context.Iar;
886 rec.NumberParameters = 0;
887 status = raise_exception( &rec, &context, TRUE );
888 if (status) raise_status( status, &rec );
889 restore_context( &context, sigcontext );
890 }
891 }
892
893
894 /**********************************************************************
895 * abrt_handler
896 *
897 * Handler for SIGABRT.
898 */
899 static void abrt_handler( int signal, siginfo_t *siginfo, void *sigcontext )
900 {
901 EXCEPTION_RECORD rec;
902 CONTEXT context;
903 NTSTATUS status;
904
905 save_context( &context, sigcontext );
906 rec.ExceptionCode = EXCEPTION_WINE_ASSERTION;
907 rec.ExceptionFlags = EH_NONCONTINUABLE;
908 rec.ExceptionRecord = NULL;
909 rec.ExceptionAddress = (LPVOID)context.Iar;
910 rec.NumberParameters = 0;
911 status = raise_exception( &rec, &context, TRUE );
912 if (status) raise_status( status, &rec );
913 restore_context( &context, sigcontext );
914 }
915
916
917 /**********************************************************************
918 * quit_handler
919 *
920 * Handler for SIGQUIT.
921 */
922 static void quit_handler( int signal, siginfo_t *siginfo, void *sigcontext )
923 {
924 abort_thread(0);
925 }
926
927
928 /**********************************************************************
929 * usr1_handler
930 *
931 * Handler for SIGUSR1, used to signal a thread that it got suspended.
932 */
933 static void usr1_handler( int signal, siginfo_t *siginfo, void *sigcontext )
934 {
935 CONTEXT context;
936
937 save_context( &context, sigcontext );
938 wait_suspend( &context );
939 restore_context( &context, sigcontext );
940 }
941
942
943 /***********************************************************************
944 * __wine_set_signal_handler (NTDLL.@)
945 */
946 int CDECL __wine_set_signal_handler(unsigned int sig, wine_signal_handler wsh)
947 {
948 if (sig > sizeof(handlers) / sizeof(handlers[0])) return -1;
949 if (handlers[sig] != NULL) return -2;
950 handlers[sig] = wsh;
951 return 0;
952 }
953
954
955 /**********************************************************************
956 * signal_alloc_thread
957 */
958 NTSTATUS signal_alloc_thread( TEB **teb )
959 {
960 static size_t sigstack_zero_bits;
961 SIZE_T size;
962 NTSTATUS status;
963
964 if (!sigstack_zero_bits)
965 {
966 size_t min_size = getpagesize(); /* this is just for the TEB, we don't use a signal stack yet */
967 /* find the first power of two not smaller than min_size */
968 while ((1u << sigstack_zero_bits) < min_size) sigstack_zero_bits++;
969 assert( sizeof(TEB) <= min_size );
970 }
971
972 size = 1 << sigstack_zero_bits;
973 *teb = NULL;
974 if (!(status = NtAllocateVirtualMemory( NtCurrentProcess(), (void **)teb, sigstack_zero_bits,
975 &size, MEM_COMMIT | MEM_TOP_DOWN, PAGE_READWRITE )))
976 {
977 (*teb)->Tib.Self = &(*teb)->Tib;
978 (*teb)->Tib.ExceptionList = (void *)~0UL;
979 }
980 return status;
981 }
982
983
984 /**********************************************************************
985 * signal_free_thread
986 */
987 void signal_free_thread( TEB *teb )
988 {
989 SIZE_T size;
990
991 if (teb->DeallocationStack)
992 {
993 size = 0;
994 NtFreeVirtualMemory( GetCurrentProcess(), &teb->DeallocationStack, &size, MEM_RELEASE );
995 }
996 size = 0;
997 NtFreeVirtualMemory( NtCurrentProcess(), (void **)&teb, &size, MEM_RELEASE );
998 }
999
1000
1001 /**********************************************************************
1002 * signal_init_thread
1003 */
1004 void signal_init_thread( TEB *teb )
1005 {
1006 static int init_done;
1007
1008 if (!init_done)
1009 {
1010 pthread_key_create( &teb_key, NULL );
1011 init_done = 1;
1012 }
1013 pthread_setspecific( teb_key, teb );
1014 }
1015
1016
1017 /**********************************************************************
1018 * signal_init_process
1019 */
1020 void signal_init_process(void)
1021 {
1022 struct sigaction sig_act;
1023
1024 sig_act.sa_mask = server_block_set;
1025 sig_act.sa_flags = SA_RESTART | SA_SIGINFO;
1026
1027 sig_act.sa_sigaction = int_handler;
1028 if (sigaction( SIGINT, &sig_act, NULL ) == -1) goto error;
1029 sig_act.sa_sigaction = fpe_handler;
1030 if (sigaction( SIGFPE, &sig_act, NULL ) == -1) goto error;
1031 sig_act.sa_sigaction = abrt_handler;
1032 if (sigaction( SIGABRT, &sig_act, NULL ) == -1) goto error;
1033 sig_act.sa_sigaction = quit_handler;
1034 if (sigaction( SIGQUIT, &sig_act, NULL ) == -1) goto error;
1035 sig_act.sa_sigaction = usr1_handler;
1036 if (sigaction( SIGUSR1, &sig_act, NULL ) == -1) goto error;
1037
1038 sig_act.sa_sigaction = segv_handler;
1039 if (sigaction( SIGSEGV, &sig_act, NULL ) == -1) goto error;
1040 if (sigaction( SIGILL, &sig_act, NULL ) == -1) goto error;
1041 #ifdef SIGBUS
1042 if (sigaction( SIGBUS, &sig_act, NULL ) == -1) goto error;
1043 #endif
1044
1045 #ifdef SIGTRAP
1046 sig_act.sa_sigaction = trap_handler;
1047 if (sigaction( SIGTRAP, &sig_act, NULL ) == -1) goto error;
1048 #endif
1049 return;
1050
1051 error:
1052 perror("sigaction");
1053 exit(1);
1054 }
1055
1056
1057 /**********************************************************************
1058 * __wine_enter_vm86 (NTDLL.@)
1059 */
1060 void __wine_enter_vm86( CONTEXT *context )
1061 {
1062 MESSAGE("vm86 mode not supported on this platform\n");
1063 }
1064
1065 /***********************************************************************
1066 * RtlUnwind (NTDLL.@)
1067 */
1068 void WINAPI RtlUnwind( PVOID pEndFrame, PVOID targetIp, PEXCEPTION_RECORD pRecord, PVOID retval )
1069 {
1070 FIXME( "Not implemented on PowerPC\n" );
1071 }
1072
1073 /*******************************************************************
1074 * NtRaiseException (NTDLL.@)
1075 */
1076 NTSTATUS WINAPI NtRaiseException( EXCEPTION_RECORD *rec, CONTEXT *context, BOOL first_chance )
1077 {
1078 NTSTATUS status = raise_exception( rec, context, first_chance );
1079 if (status == STATUS_SUCCESS) NtSetContextThread( GetCurrentThread(), context );
1080 return status;
1081 }
1082
1083 /***********************************************************************
1084 * RtlRaiseException (NTDLL.@)
1085 */
1086 void WINAPI RtlRaiseException( EXCEPTION_RECORD *rec )
1087 {
1088 CONTEXT context;
1089 NTSTATUS status;
1090
1091 RtlCaptureContext( &context );
1092 rec->ExceptionAddress = (void *)context.Iar;
1093 status = raise_exception( rec, &context, TRUE );
1094 if (status) raise_status( status, rec );
1095 }
1096
1097 /*************************************************************************
1098 * RtlCaptureStackBackTrace (NTDLL.@)
1099 */
1100 USHORT WINAPI RtlCaptureStackBackTrace( ULONG skip, ULONG count, PVOID *buffer, ULONG *hash )
1101 {
1102 FIXME( "(%d, %d, %p, %p) stub!\n", skip, count, buffer, hash );
1103 return 0;
1104 }
1105
1106 /***********************************************************************
1107 * call_thread_entry_point
1108 */
1109 void call_thread_entry_point( LPTHREAD_START_ROUTINE entry, void *arg )
1110 {
1111 __TRY
1112 {
1113 exit_thread( entry( arg ));
1114 }
1115 __EXCEPT(unhandled_exception_filter)
1116 {
1117 NtTerminateThread( GetCurrentThread(), GetExceptionCode() );
1118 }
1119 __ENDTRY
1120 abort(); /* should not be reached */
1121 }
1122
1123 /***********************************************************************
1124 * RtlExitUserThread (NTDLL.@)
1125 */
1126 void WINAPI RtlExitUserThread( ULONG status )
1127 {
1128 exit_thread( status );
1129 }
1130
1131 /***********************************************************************
1132 * abort_thread
1133 */
1134 void abort_thread( int status )
1135 {
1136 terminate_thread( status );
1137 }
1138
1139 /**********************************************************************
1140 * DbgBreakPoint (NTDLL.@)
1141 */
1142 void WINAPI DbgBreakPoint(void)
1143 {
1144 kill(getpid(), SIGTRAP);
1145 }
1146
1147 /**********************************************************************
1148 * DbgUserBreakPoint (NTDLL.@)
1149 */
1150 void WINAPI DbgUserBreakPoint(void)
1151 {
1152 kill(getpid(), SIGTRAP);
1153 }
1154
1155 /**********************************************************************
1156 * NtCurrentTeb (NTDLL.@)
1157 */
1158 TEB * WINAPI NtCurrentTeb(void)
1159 {
1160 return pthread_getspecific( teb_key );
1161 }
1162
1163 #endif /* __powerpc__ */
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