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Merge remote-tracking branch 'agraf/xen-next' into staging
[qemu.git] / linux-user / main.c
bloba1e37e494878a1fcad7adbc5f7ece26fba6de0ec
1 /*
2 * qemu user main
3 *
4 * Copyright (c) 2003-2008 Fabrice Bellard
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program 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
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
18 */
19 #include <stdlib.h>
20 #include <stdio.h>
21 #include <stdarg.h>
22 #include <string.h>
23 #include <errno.h>
24 #include <unistd.h>
25 #include <sys/mman.h>
26 #include <sys/syscall.h>
27 #include <sys/resource.h>
28
29 #include "qemu.h"
30 #include "qemu-common.h"
31 #include "cache-utils.h"
32 /* For tb_lock */
33 #include "exec-all.h"
34 #include "tcg.h"
35 #include "qemu-timer.h"
36 #include "envlist.h"
37
38 #define DEBUG_LOGFILE "/tmp/qemu.log"
39
40 char *exec_path;
41
42 int singlestep;
43 unsigned long mmap_min_addr;
44 #if defined(CONFIG_USE_GUEST_BASE)
45 unsigned long guest_base;
46 int have_guest_base;
47 unsigned long reserved_va;
48 #endif
49
50 static const char *interp_prefix = CONFIG_QEMU_INTERP_PREFIX;
51 const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
52
53 /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
54 we allocate a bigger stack. Need a better solution, for example
55 by remapping the process stack directly at the right place */
56 unsigned long guest_stack_size = 8 * 1024 * 1024UL;
57
58 void gemu_log(const char *fmt, ...)
59 {
60 va_list ap;
61
62 va_start(ap, fmt);
63 vfprintf(stderr, fmt, ap);
64 va_end(ap);
65 }
66
67 #if defined(TARGET_I386)
68 int cpu_get_pic_interrupt(CPUState *env)
69 {
70 return -1;
71 }
72 #endif
73
74 /* timers for rdtsc */
75
76 #if 0
77
78 static uint64_t emu_time;
79
80 int64_t cpu_get_real_ticks(void)
81 {
82 return emu_time++;
83 }
84
85 #endif
86
87 #if defined(CONFIG_USE_NPTL)
88 /***********************************************************/
89 /* Helper routines for implementing atomic operations. */
90
91 /* To implement exclusive operations we force all cpus to syncronise.
92 We don't require a full sync, only that no cpus are executing guest code.
93 The alternative is to map target atomic ops onto host equivalents,
94 which requires quite a lot of per host/target work. */
95 static pthread_mutex_t cpu_list_mutex = PTHREAD_MUTEX_INITIALIZER;
96 static pthread_mutex_t exclusive_lock = PTHREAD_MUTEX_INITIALIZER;
97 static pthread_cond_t exclusive_cond = PTHREAD_COND_INITIALIZER;
98 static pthread_cond_t exclusive_resume = PTHREAD_COND_INITIALIZER;
99 static int pending_cpus;
100
101 /* Make sure everything is in a consistent state for calling fork(). */
102 void fork_start(void)
103 {
104 pthread_mutex_lock(&tb_lock);
105 pthread_mutex_lock(&exclusive_lock);
106 mmap_fork_start();
107 }
108
109 void fork_end(int child)
110 {
111 mmap_fork_end(child);
112 if (child) {
113 /* Child processes created by fork() only have a single thread.
114 Discard information about the parent threads. */
115 first_cpu = thread_env;
116 thread_env->next_cpu = NULL;
117 pending_cpus = 0;
118 pthread_mutex_init(&exclusive_lock, NULL);
119 pthread_mutex_init(&cpu_list_mutex, NULL);
120 pthread_cond_init(&exclusive_cond, NULL);
121 pthread_cond_init(&exclusive_resume, NULL);
122 pthread_mutex_init(&tb_lock, NULL);
123 gdbserver_fork(thread_env);
124 } else {
125 pthread_mutex_unlock(&exclusive_lock);
126 pthread_mutex_unlock(&tb_lock);
127 }
128 }
129
130 /* Wait for pending exclusive operations to complete. The exclusive lock
131 must be held. */
132 static inline void exclusive_idle(void)
133 {
134 while (pending_cpus) {
135 pthread_cond_wait(&exclusive_resume, &exclusive_lock);
136 }
137 }
138
139 /* Start an exclusive operation.
140 Must only be called from outside cpu_arm_exec. */
141 static inline void start_exclusive(void)
142 {
143 CPUState *other;
144 pthread_mutex_lock(&exclusive_lock);
145 exclusive_idle();
146
147 pending_cpus = 1;
148 /* Make all other cpus stop executing. */
149 for (other = first_cpu; other; other = other->next_cpu) {
150 if (other->running) {
151 pending_cpus++;
152 cpu_exit(other);
153 }
154 }
155 if (pending_cpus > 1) {
156 pthread_cond_wait(&exclusive_cond, &exclusive_lock);
157 }
158 }
159
160 /* Finish an exclusive operation. */
161 static inline void end_exclusive(void)
162 {
163 pending_cpus = 0;
164 pthread_cond_broadcast(&exclusive_resume);
165 pthread_mutex_unlock(&exclusive_lock);
166 }
167
168 /* Wait for exclusive ops to finish, and begin cpu execution. */
169 static inline void cpu_exec_start(CPUState *env)
170 {
171 pthread_mutex_lock(&exclusive_lock);
172 exclusive_idle();
173 env->running = 1;
174 pthread_mutex_unlock(&exclusive_lock);
175 }
176
177 /* Mark cpu as not executing, and release pending exclusive ops. */
178 static inline void cpu_exec_end(CPUState *env)
179 {
180 pthread_mutex_lock(&exclusive_lock);
181 env->running = 0;
182 if (pending_cpus > 1) {
183 pending_cpus--;
184 if (pending_cpus == 1) {
185 pthread_cond_signal(&exclusive_cond);
186 }
187 }
188 exclusive_idle();
189 pthread_mutex_unlock(&exclusive_lock);
190 }
191
192 void cpu_list_lock(void)
193 {
194 pthread_mutex_lock(&cpu_list_mutex);
195 }
196
197 void cpu_list_unlock(void)
198 {
199 pthread_mutex_unlock(&cpu_list_mutex);
200 }
201 #else /* if !CONFIG_USE_NPTL */
202 /* These are no-ops because we are not threadsafe. */
203 static inline void cpu_exec_start(CPUState *env)
204 {
205 }
206
207 static inline void cpu_exec_end(CPUState *env)
208 {
209 }
210
211 static inline void start_exclusive(void)
212 {
213 }
214
215 static inline void end_exclusive(void)
216 {
217 }
218
219 void fork_start(void)
220 {
221 }
222
223 void fork_end(int child)
224 {
225 if (child) {
226 gdbserver_fork(thread_env);
227 }
228 }
229
230 void cpu_list_lock(void)
231 {
232 }
233
234 void cpu_list_unlock(void)
235 {
236 }
237 #endif
238
239
240 #ifdef TARGET_I386
241 /***********************************************************/
242 /* CPUX86 core interface */
243
244 void cpu_smm_update(CPUState *env)
245 {
246 }
247
248 uint64_t cpu_get_tsc(CPUX86State *env)
249 {
250 return cpu_get_real_ticks();
251 }
252
253 static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
254 int flags)
255 {
256 unsigned int e1, e2;
257 uint32_t *p;
258 e1 = (addr << 16) | (limit & 0xffff);
259 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
260 e2 |= flags;
261 p = ptr;
262 p[0] = tswap32(e1);
263 p[1] = tswap32(e2);
264 }
265
266 static uint64_t *idt_table;
267 #ifdef TARGET_X86_64
268 static void set_gate64(void *ptr, unsigned int type, unsigned int dpl,
269 uint64_t addr, unsigned int sel)
270 {
271 uint32_t *p, e1, e2;
272 e1 = (addr & 0xffff) | (sel << 16);
273 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
274 p = ptr;
275 p[0] = tswap32(e1);
276 p[1] = tswap32(e2);
277 p[2] = tswap32(addr >> 32);
278 p[3] = 0;
279 }
280 /* only dpl matters as we do only user space emulation */
281 static void set_idt(int n, unsigned int dpl)
282 {
283 set_gate64(idt_table + n * 2, 0, dpl, 0, 0);
284 }
285 #else
286 static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
287 uint32_t addr, unsigned int sel)
288 {
289 uint32_t *p, e1, e2;
290 e1 = (addr & 0xffff) | (sel << 16);
291 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
292 p = ptr;
293 p[0] = tswap32(e1);
294 p[1] = tswap32(e2);
295 }
296
297 /* only dpl matters as we do only user space emulation */
298 static void set_idt(int n, unsigned int dpl)
299 {
300 set_gate(idt_table + n, 0, dpl, 0, 0);
301 }
302 #endif
303
304 void cpu_loop(CPUX86State *env)
305 {
306 int trapnr;
307 abi_ulong pc;
308 target_siginfo_t info;
309
310 for(;;) {
311 trapnr = cpu_x86_exec(env);
312 switch(trapnr) {
313 case 0x80:
314 /* linux syscall from int $0x80 */
315 env->regs[R_EAX] = do_syscall(env,
316 env->regs[R_EAX],
317 env->regs[R_EBX],
318 env->regs[R_ECX],
319 env->regs[R_EDX],
320 env->regs[R_ESI],
321 env->regs[R_EDI],
322 env->regs[R_EBP]);
323 break;
324 #ifndef TARGET_ABI32
325 case EXCP_SYSCALL:
326 /* linux syscall from syscall intruction */
327 env->regs[R_EAX] = do_syscall(env,
328 env->regs[R_EAX],
329 env->regs[R_EDI],
330 env->regs[R_ESI],
331 env->regs[R_EDX],
332 env->regs[10],
333 env->regs[8],
334 env->regs[9]);
335 env->eip = env->exception_next_eip;
336 break;
337 #endif
338 case EXCP0B_NOSEG:
339 case EXCP0C_STACK:
340 info.si_signo = SIGBUS;
341 info.si_errno = 0;
342 info.si_code = TARGET_SI_KERNEL;
343 info._sifields._sigfault._addr = 0;
344 queue_signal(env, info.si_signo, &info);
345 break;
346 case EXCP0D_GPF:
347 /* XXX: potential problem if ABI32 */
348 #ifndef TARGET_X86_64
349 if (env->eflags & VM_MASK) {
350 handle_vm86_fault(env);
351 } else
352 #endif
353 {
354 info.si_signo = SIGSEGV;
355 info.si_errno = 0;
356 info.si_code = TARGET_SI_KERNEL;
357 info._sifields._sigfault._addr = 0;
358 queue_signal(env, info.si_signo, &info);
359 }
360 break;
361 case EXCP0E_PAGE:
362 info.si_signo = SIGSEGV;
363 info.si_errno = 0;
364 if (!(env->error_code & 1))
365 info.si_code = TARGET_SEGV_MAPERR;
366 else
367 info.si_code = TARGET_SEGV_ACCERR;
368 info._sifields._sigfault._addr = env->cr[2];
369 queue_signal(env, info.si_signo, &info);
370 break;
371 case EXCP00_DIVZ:
372 #ifndef TARGET_X86_64
373 if (env->eflags & VM_MASK) {
374 handle_vm86_trap(env, trapnr);
375 } else
376 #endif
377 {
378 /* division by zero */
379 info.si_signo = SIGFPE;
380 info.si_errno = 0;
381 info.si_code = TARGET_FPE_INTDIV;
382 info._sifields._sigfault._addr = env->eip;
383 queue_signal(env, info.si_signo, &info);
384 }
385 break;
386 case EXCP01_DB:
387 case EXCP03_INT3:
388 #ifndef TARGET_X86_64
389 if (env->eflags & VM_MASK) {
390 handle_vm86_trap(env, trapnr);
391 } else
392 #endif
393 {
394 info.si_signo = SIGTRAP;
395 info.si_errno = 0;
396 if (trapnr == EXCP01_DB) {
397 info.si_code = TARGET_TRAP_BRKPT;
398 info._sifields._sigfault._addr = env->eip;
399 } else {
400 info.si_code = TARGET_SI_KERNEL;
401 info._sifields._sigfault._addr = 0;
402 }
403 queue_signal(env, info.si_signo, &info);
404 }
405 break;
406 case EXCP04_INTO:
407 case EXCP05_BOUND:
408 #ifndef TARGET_X86_64
409 if (env->eflags & VM_MASK) {
410 handle_vm86_trap(env, trapnr);
411 } else
412 #endif
413 {
414 info.si_signo = SIGSEGV;
415 info.si_errno = 0;
416 info.si_code = TARGET_SI_KERNEL;
417 info._sifields._sigfault._addr = 0;
418 queue_signal(env, info.si_signo, &info);
419 }
420 break;
421 case EXCP06_ILLOP:
422 info.si_signo = SIGILL;
423 info.si_errno = 0;
424 info.si_code = TARGET_ILL_ILLOPN;
425 info._sifields._sigfault._addr = env->eip;
426 queue_signal(env, info.si_signo, &info);
427 break;
428 case EXCP_INTERRUPT:
429 /* just indicate that signals should be handled asap */
430 break;
431 case EXCP_DEBUG:
432 {
433 int sig;
434
435 sig = gdb_handlesig (env, TARGET_SIGTRAP);
436 if (sig)
437 {
438 info.si_signo = sig;
439 info.si_errno = 0;
440 info.si_code = TARGET_TRAP_BRKPT;
441 queue_signal(env, info.si_signo, &info);
442 }
443 }
444 break;
445 default:
446 pc = env->segs[R_CS].base + env->eip;
447 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
448 (long)pc, trapnr);
449 abort();
450 }
451 process_pending_signals(env);
452 }
453 }
454 #endif
455
456 #ifdef TARGET_ARM
457
458 static void arm_cache_flush(abi_ulong start, abi_ulong last)
459 {
460 abi_ulong addr, last1;
461
462 if (last < start)
463 return;
464 addr = start;
465 for(;;) {
466 last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
467 if (last1 > last)
468 last1 = last;
469 tb_invalidate_page_range(addr, last1 + 1);
470 if (last1 == last)
471 break;
472 addr = last1 + 1;
473 }
474 }
475
476 /* Handle a jump to the kernel code page. */
477 static int
478 do_kernel_trap(CPUARMState *env)
479 {
480 uint32_t addr;
481 uint32_t cpsr;
482 uint32_t val;
483
484 switch (env->regs[15]) {
485 case 0xffff0fa0: /* __kernel_memory_barrier */
486 /* ??? No-op. Will need to do better for SMP. */
487 break;
488 case 0xffff0fc0: /* __kernel_cmpxchg */
489 /* XXX: This only works between threads, not between processes.
490 It's probably possible to implement this with native host
491 operations. However things like ldrex/strex are much harder so
492 there's not much point trying. */
493 start_exclusive();
494 cpsr = cpsr_read(env);
495 addr = env->regs[2];
496 /* FIXME: This should SEGV if the access fails. */
497 if (get_user_u32(val, addr))
498 val = ~env->regs[0];
499 if (val == env->regs[0]) {
500 val = env->regs[1];
501 /* FIXME: Check for segfaults. */
502 put_user_u32(val, addr);
503 env->regs[0] = 0;
504 cpsr |= CPSR_C;
505 } else {
506 env->regs[0] = -1;
507 cpsr &= ~CPSR_C;
508 }
509 cpsr_write(env, cpsr, CPSR_C);
510 end_exclusive();
511 break;
512 case 0xffff0fe0: /* __kernel_get_tls */
513 env->regs[0] = env->cp15.c13_tls2;
514 break;
515 default:
516 return 1;
517 }
518 /* Jump back to the caller. */
519 addr = env->regs[14];
520 if (addr & 1) {
521 env->thumb = 1;
522 addr &= ~1;
523 }
524 env->regs[15] = addr;
525
526 return 0;
527 }
528
529 static int do_strex(CPUARMState *env)
530 {
531 uint32_t val;
532 int size;
533 int rc = 1;
534 int segv = 0;
535 uint32_t addr;
536 start_exclusive();
537 addr = env->exclusive_addr;
538 if (addr != env->exclusive_test) {
539 goto fail;
540 }
541 size = env->exclusive_info & 0xf;
542 switch (size) {
543 case 0:
544 segv = get_user_u8(val, addr);
545 break;
546 case 1:
547 segv = get_user_u16(val, addr);
548 break;
549 case 2:
550 case 3:
551 segv = get_user_u32(val, addr);
552 break;
553 default:
554 abort();
555 }
556 if (segv) {
557 env->cp15.c6_data = addr;
558 goto done;
559 }
560 if (val != env->exclusive_val) {
561 goto fail;
562 }
563 if (size == 3) {
564 segv = get_user_u32(val, addr + 4);
565 if (segv) {
566 env->cp15.c6_data = addr + 4;
567 goto done;
568 }
569 if (val != env->exclusive_high) {
570 goto fail;
571 }
572 }
573 val = env->regs[(env->exclusive_info >> 8) & 0xf];
574 switch (size) {
575 case 0:
576 segv = put_user_u8(val, addr);
577 break;
578 case 1:
579 segv = put_user_u16(val, addr);
580 break;
581 case 2:
582 case 3:
583 segv = put_user_u32(val, addr);
584 break;
585 }
586 if (segv) {
587 env->cp15.c6_data = addr;
588 goto done;
589 }
590 if (size == 3) {
591 val = env->regs[(env->exclusive_info >> 12) & 0xf];
592 segv = put_user_u32(val, addr + 4);
593 if (segv) {
594 env->cp15.c6_data = addr + 4;
595 goto done;
596 }
597 }
598 rc = 0;
599 fail:
600 env->regs[15] += 4;
601 env->regs[(env->exclusive_info >> 4) & 0xf] = rc;
602 done:
603 end_exclusive();
604 return segv;
605 }
606
607 void cpu_loop(CPUARMState *env)
608 {
609 int trapnr;
610 unsigned int n, insn;
611 target_siginfo_t info;
612 uint32_t addr;
613
614 for(;;) {
615 cpu_exec_start(env);
616 trapnr = cpu_arm_exec(env);
617 cpu_exec_end(env);
618 switch(trapnr) {
619 case EXCP_UDEF:
620 {
621 TaskState *ts = env->opaque;
622 uint32_t opcode;
623 int rc;
624
625 /* we handle the FPU emulation here, as Linux */
626 /* we get the opcode */
627 /* FIXME - what to do if get_user() fails? */
628 get_user_u32(opcode, env->regs[15]);
629
630 rc = EmulateAll(opcode, &ts->fpa, env);
631 if (rc == 0) { /* illegal instruction */
632 info.si_signo = SIGILL;
633 info.si_errno = 0;
634 info.si_code = TARGET_ILL_ILLOPN;
635 info._sifields._sigfault._addr = env->regs[15];
636 queue_signal(env, info.si_signo, &info);
637 } else if (rc < 0) { /* FP exception */
638 int arm_fpe=0;
639
640 /* translate softfloat flags to FPSR flags */
641 if (-rc & float_flag_invalid)
642 arm_fpe |= BIT_IOC;
643 if (-rc & float_flag_divbyzero)
644 arm_fpe |= BIT_DZC;
645 if (-rc & float_flag_overflow)
646 arm_fpe |= BIT_OFC;
647 if (-rc & float_flag_underflow)
648 arm_fpe |= BIT_UFC;
649 if (-rc & float_flag_inexact)
650 arm_fpe |= BIT_IXC;
651
652 FPSR fpsr = ts->fpa.fpsr;
653 //printf("fpsr 0x%x, arm_fpe 0x%x\n",fpsr,arm_fpe);
654
655 if (fpsr & (arm_fpe << 16)) { /* exception enabled? */
656 info.si_signo = SIGFPE;
657 info.si_errno = 0;
658
659 /* ordered by priority, least first */
660 if (arm_fpe & BIT_IXC) info.si_code = TARGET_FPE_FLTRES;
661 if (arm_fpe & BIT_UFC) info.si_code = TARGET_FPE_FLTUND;
662 if (arm_fpe & BIT_OFC) info.si_code = TARGET_FPE_FLTOVF;
663 if (arm_fpe & BIT_DZC) info.si_code = TARGET_FPE_FLTDIV;
664 if (arm_fpe & BIT_IOC) info.si_code = TARGET_FPE_FLTINV;
665
666 info._sifields._sigfault._addr = env->regs[15];
667 queue_signal(env, info.si_signo, &info);
668 } else {
669 env->regs[15] += 4;
670 }
671
672 /* accumulate unenabled exceptions */
673 if ((!(fpsr & BIT_IXE)) && (arm_fpe & BIT_IXC))
674 fpsr |= BIT_IXC;
675 if ((!(fpsr & BIT_UFE)) && (arm_fpe & BIT_UFC))
676 fpsr |= BIT_UFC;
677 if ((!(fpsr & BIT_OFE)) && (arm_fpe & BIT_OFC))
678 fpsr |= BIT_OFC;
679 if ((!(fpsr & BIT_DZE)) && (arm_fpe & BIT_DZC))
680 fpsr |= BIT_DZC;
681 if ((!(fpsr & BIT_IOE)) && (arm_fpe & BIT_IOC))
682 fpsr |= BIT_IOC;
683 ts->fpa.fpsr=fpsr;
684 } else { /* everything OK */
685 /* increment PC */
686 env->regs[15] += 4;
687 }
688 }
689 break;
690 case EXCP_SWI:
691 case EXCP_BKPT:
692 {
693 env->eabi = 1;
694 /* system call */
695 if (trapnr == EXCP_BKPT) {
696 if (env->thumb) {
697 /* FIXME - what to do if get_user() fails? */
698 get_user_u16(insn, env->regs[15]);
699 n = insn & 0xff;
700 env->regs[15] += 2;
701 } else {
702 /* FIXME - what to do if get_user() fails? */
703 get_user_u32(insn, env->regs[15]);
704 n = (insn & 0xf) | ((insn >> 4) & 0xff0);
705 env->regs[15] += 4;
706 }
707 } else {
708 if (env->thumb) {
709 /* FIXME - what to do if get_user() fails? */
710 get_user_u16(insn, env->regs[15] - 2);
711 n = insn & 0xff;
712 } else {
713 /* FIXME - what to do if get_user() fails? */
714 get_user_u32(insn, env->regs[15] - 4);
715 n = insn & 0xffffff;
716 }
717 }
718
719 if (n == ARM_NR_cacheflush) {
720 arm_cache_flush(env->regs[0], env->regs[1]);
721 } else if (n == ARM_NR_semihosting
722 || n == ARM_NR_thumb_semihosting) {
723 env->regs[0] = do_arm_semihosting (env);
724 } else if (n == 0 || n >= ARM_SYSCALL_BASE
725 || (env->thumb && n == ARM_THUMB_SYSCALL)) {
726 /* linux syscall */
727 if (env->thumb || n == 0) {
728 n = env->regs[7];
729 } else {
730 n -= ARM_SYSCALL_BASE;
731 env->eabi = 0;
732 }
733 if ( n > ARM_NR_BASE) {
734 switch (n) {
735 case ARM_NR_cacheflush:
736 arm_cache_flush(env->regs[0], env->regs[1]);
737 break;
738 case ARM_NR_set_tls:
739 cpu_set_tls(env, env->regs[0]);
740 env->regs[0] = 0;
741 break;
742 default:
743 gemu_log("qemu: Unsupported ARM syscall: 0x%x\n",
744 n);
745 env->regs[0] = -TARGET_ENOSYS;
746 break;
747 }
748 } else {
749 env->regs[0] = do_syscall(env,
750 n,
751 env->regs[0],
752 env->regs[1],
753 env->regs[2],
754 env->regs[3],
755 env->regs[4],
756 env->regs[5]);
757 }
758 } else {
759 goto error;
760 }
761 }
762 break;
763 case EXCP_INTERRUPT:
764 /* just indicate that signals should be handled asap */
765 break;
766 case EXCP_PREFETCH_ABORT:
767 addr = env->cp15.c6_insn;
768 goto do_segv;
769 case EXCP_DATA_ABORT:
770 addr = env->cp15.c6_data;
771 goto do_segv;
772 do_segv:
773 {
774 info.si_signo = SIGSEGV;
775 info.si_errno = 0;
776 /* XXX: check env->error_code */
777 info.si_code = TARGET_SEGV_MAPERR;
778 info._sifields._sigfault._addr = addr;
779 queue_signal(env, info.si_signo, &info);
780 }
781 break;
782 case EXCP_DEBUG:
783 {
784 int sig;
785
786 sig = gdb_handlesig (env, TARGET_SIGTRAP);
787 if (sig)
788 {
789 info.si_signo = sig;
790 info.si_errno = 0;
791 info.si_code = TARGET_TRAP_BRKPT;
792 queue_signal(env, info.si_signo, &info);
793 }
794 }
795 break;
796 case EXCP_KERNEL_TRAP:
797 if (do_kernel_trap(env))
798 goto error;
799 break;
800 case EXCP_STREX:
801 if (do_strex(env)) {
802 addr = env->cp15.c6_data;
803 goto do_segv;
804 }
805 break;
806 default:
807 error:
808 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
809 trapnr);
810 cpu_dump_state(env, stderr, fprintf, 0);
811 abort();
812 }
813 process_pending_signals(env);
814 }
815 }
816
817 #endif
818
819 #ifdef TARGET_UNICORE32
820
821 void cpu_loop(CPUState *env)
822 {
823 int trapnr;
824 unsigned int n, insn;
825 target_siginfo_t info;
826
827 for (;;) {
828 cpu_exec_start(env);
829 trapnr = uc32_cpu_exec(env);
830 cpu_exec_end(env);
831 switch (trapnr) {
832 case UC32_EXCP_PRIV:
833 {
834 /* system call */
835 get_user_u32(insn, env->regs[31] - 4);
836 n = insn & 0xffffff;
837
838 if (n >= UC32_SYSCALL_BASE) {
839 /* linux syscall */
840 n -= UC32_SYSCALL_BASE;
841 if (n == UC32_SYSCALL_NR_set_tls) {
842 cpu_set_tls(env, env->regs[0]);
843 env->regs[0] = 0;
844 } else {
845 env->regs[0] = do_syscall(env,
846 n,
847 env->regs[0],
848 env->regs[1],
849 env->regs[2],
850 env->regs[3],
851 env->regs[4],
852 env->regs[5]);
853 }
854 } else {
855 goto error;
856 }
857 }
858 break;
859 case UC32_EXCP_TRAP:
860 info.si_signo = SIGSEGV;
861 info.si_errno = 0;
862 /* XXX: check env->error_code */
863 info.si_code = TARGET_SEGV_MAPERR;
864 info._sifields._sigfault._addr = env->cp0.c4_faultaddr;
865 queue_signal(env, info.si_signo, &info);
866 break;
867 case EXCP_INTERRUPT:
868 /* just indicate that signals should be handled asap */
869 break;
870 case EXCP_DEBUG:
871 {
872 int sig;
873
874 sig = gdb_handlesig(env, TARGET_SIGTRAP);
875 if (sig) {
876 info.si_signo = sig;
877 info.si_errno = 0;
878 info.si_code = TARGET_TRAP_BRKPT;
879 queue_signal(env, info.si_signo, &info);
880 }
881 }
882 break;
883 default:
884 goto error;
885 }
886 process_pending_signals(env);
887 }
888
889 error:
890 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr);
891 cpu_dump_state(env, stderr, fprintf, 0);
892 abort();
893 }
894 #endif
895
896 #ifdef TARGET_SPARC
897 #define SPARC64_STACK_BIAS 2047
898
899 //#define DEBUG_WIN
900
901 /* WARNING: dealing with register windows _is_ complicated. More info
902 can be found at http://www.sics.se/~psm/sparcstack.html */
903 static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
904 {
905 index = (index + cwp * 16) % (16 * env->nwindows);
906 /* wrap handling : if cwp is on the last window, then we use the
907 registers 'after' the end */
908 if (index < 8 && env->cwp == env->nwindows - 1)
909 index += 16 * env->nwindows;
910 return index;
911 }
912
913 /* save the register window 'cwp1' */
914 static inline void save_window_offset(CPUSPARCState *env, int cwp1)
915 {
916 unsigned int i;
917 abi_ulong sp_ptr;
918
919 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
920 #ifdef TARGET_SPARC64
921 if (sp_ptr & 3)
922 sp_ptr += SPARC64_STACK_BIAS;
923 #endif
924 #if defined(DEBUG_WIN)
925 printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n",
926 sp_ptr, cwp1);
927 #endif
928 for(i = 0; i < 16; i++) {
929 /* FIXME - what to do if put_user() fails? */
930 put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
931 sp_ptr += sizeof(abi_ulong);
932 }
933 }
934
935 static void save_window(CPUSPARCState *env)
936 {
937 #ifndef TARGET_SPARC64
938 unsigned int new_wim;
939 new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) &
940 ((1LL << env->nwindows) - 1);
941 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
942 env->wim = new_wim;
943 #else
944 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
945 env->cansave++;
946 env->canrestore--;
947 #endif
948 }
949
950 static void restore_window(CPUSPARCState *env)
951 {
952 #ifndef TARGET_SPARC64
953 unsigned int new_wim;
954 #endif
955 unsigned int i, cwp1;
956 abi_ulong sp_ptr;
957
958 #ifndef TARGET_SPARC64
959 new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) &
960 ((1LL << env->nwindows) - 1);
961 #endif
962
963 /* restore the invalid window */
964 cwp1 = cpu_cwp_inc(env, env->cwp + 1);
965 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
966 #ifdef TARGET_SPARC64
967 if (sp_ptr & 3)
968 sp_ptr += SPARC64_STACK_BIAS;
969 #endif
970 #if defined(DEBUG_WIN)
971 printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n",
972 sp_ptr, cwp1);
973 #endif
974 for(i = 0; i < 16; i++) {
975 /* FIXME - what to do if get_user() fails? */
976 get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
977 sp_ptr += sizeof(abi_ulong);
978 }
979 #ifdef TARGET_SPARC64
980 env->canrestore++;
981 if (env->cleanwin < env->nwindows - 1)
982 env->cleanwin++;
983 env->cansave--;
984 #else
985 env->wim = new_wim;
986 #endif
987 }
988
989 static void flush_windows(CPUSPARCState *env)
990 {
991 int offset, cwp1;
992
993 offset = 1;
994 for(;;) {
995 /* if restore would invoke restore_window(), then we can stop */
996 cwp1 = cpu_cwp_inc(env, env->cwp + offset);
997 #ifndef TARGET_SPARC64
998 if (env->wim & (1 << cwp1))
999 break;
1000 #else
1001 if (env->canrestore == 0)
1002 break;
1003 env->cansave++;
1004 env->canrestore--;
1005 #endif
1006 save_window_offset(env, cwp1);
1007 offset++;
1008 }
1009 cwp1 = cpu_cwp_inc(env, env->cwp + 1);
1010 #ifndef TARGET_SPARC64
1011 /* set wim so that restore will reload the registers */
1012 env->wim = 1 << cwp1;
1013 #endif
1014 #if defined(DEBUG_WIN)
1015 printf("flush_windows: nb=%d\n", offset - 1);
1016 #endif
1017 }
1018
1019 void cpu_loop (CPUSPARCState *env)
1020 {
1021 int trapnr;
1022 abi_long ret;
1023 target_siginfo_t info;
1024
1025 while (1) {
1026 trapnr = cpu_sparc_exec (env);
1027
1028 switch (trapnr) {
1029 #ifndef TARGET_SPARC64
1030 case 0x88:
1031 case 0x90:
1032 #else
1033 case 0x110:
1034 case 0x16d:
1035 #endif
1036 ret = do_syscall (env, env->gregs[1],
1037 env->regwptr[0], env->regwptr[1],
1038 env->regwptr[2], env->regwptr[3],
1039 env->regwptr[4], env->regwptr[5]);
1040 if ((abi_ulong)ret >= (abi_ulong)(-515)) {
1041 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
1042 env->xcc |= PSR_CARRY;
1043 #else
1044 env->psr |= PSR_CARRY;
1045 #endif
1046 ret = -ret;
1047 } else {
1048 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
1049 env->xcc &= ~PSR_CARRY;
1050 #else
1051 env->psr &= ~PSR_CARRY;
1052 #endif
1053 }
1054 env->regwptr[0] = ret;
1055 /* next instruction */
1056 env->pc = env->npc;
1057 env->npc = env->npc + 4;
1058 break;
1059 case 0x83: /* flush windows */
1060 #ifdef TARGET_ABI32
1061 case 0x103:
1062 #endif
1063 flush_windows(env);
1064 /* next instruction */
1065 env->pc = env->npc;
1066 env->npc = env->npc + 4;
1067 break;
1068 #ifndef TARGET_SPARC64
1069 case TT_WIN_OVF: /* window overflow */
1070 save_window(env);
1071 break;
1072 case TT_WIN_UNF: /* window underflow */
1073 restore_window(env);
1074 break;
1075 case TT_TFAULT:
1076 case TT_DFAULT:
1077 {
1078 info.si_signo = SIGSEGV;
1079 info.si_errno = 0;
1080 /* XXX: check env->error_code */
1081 info.si_code = TARGET_SEGV_MAPERR;
1082 info._sifields._sigfault._addr = env->mmuregs[4];
1083 queue_signal(env, info.si_signo, &info);
1084 }
1085 break;
1086 #else
1087 case TT_SPILL: /* window overflow */
1088 save_window(env);
1089 break;
1090 case TT_FILL: /* window underflow */
1091 restore_window(env);
1092 break;
1093 case TT_TFAULT:
1094 case TT_DFAULT:
1095 {
1096 info.si_signo = SIGSEGV;
1097 info.si_errno = 0;
1098 /* XXX: check env->error_code */
1099 info.si_code = TARGET_SEGV_MAPERR;
1100 if (trapnr == TT_DFAULT)
1101 info._sifields._sigfault._addr = env->dmmuregs[4];
1102 else
1103 info._sifields._sigfault._addr = cpu_tsptr(env)->tpc;
1104 queue_signal(env, info.si_signo, &info);
1105 }
1106 break;
1107 #ifndef TARGET_ABI32
1108 case 0x16e:
1109 flush_windows(env);
1110 sparc64_get_context(env);
1111 break;
1112 case 0x16f:
1113 flush_windows(env);
1114 sparc64_set_context(env);
1115 break;
1116 #endif
1117 #endif
1118 case EXCP_INTERRUPT:
1119 /* just indicate that signals should be handled asap */
1120 break;
1121 case EXCP_DEBUG:
1122 {
1123 int sig;
1124
1125 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1126 if (sig)
1127 {
1128 info.si_signo = sig;
1129 info.si_errno = 0;
1130 info.si_code = TARGET_TRAP_BRKPT;
1131 queue_signal(env, info.si_signo, &info);
1132 }
1133 }
1134 break;
1135 default:
1136 printf ("Unhandled trap: 0x%x\n", trapnr);
1137 cpu_dump_state(env, stderr, fprintf, 0);
1138 exit (1);
1139 }
1140 process_pending_signals (env);
1141 }
1142 }
1143
1144 #endif
1145
1146 #ifdef TARGET_PPC
1147 static inline uint64_t cpu_ppc_get_tb (CPUState *env)
1148 {
1149 /* TO FIX */
1150 return 0;
1151 }
1152
1153 uint64_t cpu_ppc_load_tbl (CPUState *env)
1154 {
1155 return cpu_ppc_get_tb(env);
1156 }
1157
1158 uint32_t cpu_ppc_load_tbu (CPUState *env)
1159 {
1160 return cpu_ppc_get_tb(env) >> 32;
1161 }
1162
1163 uint64_t cpu_ppc_load_atbl (CPUState *env)
1164 {
1165 return cpu_ppc_get_tb(env);
1166 }
1167
1168 uint32_t cpu_ppc_load_atbu (CPUState *env)
1169 {
1170 return cpu_ppc_get_tb(env) >> 32;
1171 }
1172
1173 uint32_t cpu_ppc601_load_rtcu (CPUState *env)
1174 __attribute__ (( alias ("cpu_ppc_load_tbu") ));
1175
1176 uint32_t cpu_ppc601_load_rtcl (CPUState *env)
1177 {
1178 return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
1179 }
1180
1181 /* XXX: to be fixed */
1182 int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, uint32_t *valp)
1183 {
1184 return -1;
1185 }
1186
1187 int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, uint32_t val)
1188 {
1189 return -1;
1190 }
1191
1192 #define EXCP_DUMP(env, fmt, ...) \
1193 do { \
1194 fprintf(stderr, fmt , ## __VA_ARGS__); \
1195 cpu_dump_state(env, stderr, fprintf, 0); \
1196 qemu_log(fmt, ## __VA_ARGS__); \
1197 if (logfile) \
1198 log_cpu_state(env, 0); \
1199 } while (0)
1200
1201 static int do_store_exclusive(CPUPPCState *env)
1202 {
1203 target_ulong addr;
1204 target_ulong page_addr;
1205 target_ulong val;
1206 int flags;
1207 int segv = 0;
1208
1209 addr = env->reserve_ea;
1210 page_addr = addr & TARGET_PAGE_MASK;
1211 start_exclusive();
1212 mmap_lock();
1213 flags = page_get_flags(page_addr);
1214 if ((flags & PAGE_READ) == 0) {
1215 segv = 1;
1216 } else {
1217 int reg = env->reserve_info & 0x1f;
1218 int size = (env->reserve_info >> 5) & 0xf;
1219 int stored = 0;
1220
1221 if (addr == env->reserve_addr) {
1222 switch (size) {
1223 case 1: segv = get_user_u8(val, addr); break;
1224 case 2: segv = get_user_u16(val, addr); break;
1225 case 4: segv = get_user_u32(val, addr); break;
1226 #if defined(TARGET_PPC64)
1227 case 8: segv = get_user_u64(val, addr); break;
1228 #endif
1229 default: abort();
1230 }
1231 if (!segv && val == env->reserve_val) {
1232 val = env->gpr[reg];
1233 switch (size) {
1234 case 1: segv = put_user_u8(val, addr); break;
1235 case 2: segv = put_user_u16(val, addr); break;
1236 case 4: segv = put_user_u32(val, addr); break;
1237 #if defined(TARGET_PPC64)
1238 case 8: segv = put_user_u64(val, addr); break;
1239 #endif
1240 default: abort();
1241 }
1242 if (!segv) {
1243 stored = 1;
1244 }
1245 }
1246 }
1247 env->crf[0] = (stored << 1) | xer_so;
1248 env->reserve_addr = (target_ulong)-1;
1249 }
1250 if (!segv) {
1251 env->nip += 4;
1252 }
1253 mmap_unlock();
1254 end_exclusive();
1255 return segv;
1256 }
1257
1258 void cpu_loop(CPUPPCState *env)
1259 {
1260 target_siginfo_t info;
1261 int trapnr;
1262 uint32_t ret;
1263
1264 for(;;) {
1265 cpu_exec_start(env);
1266 trapnr = cpu_ppc_exec(env);
1267 cpu_exec_end(env);
1268 switch(trapnr) {
1269 case POWERPC_EXCP_NONE:
1270 /* Just go on */
1271 break;
1272 case POWERPC_EXCP_CRITICAL: /* Critical input */
1273 cpu_abort(env, "Critical interrupt while in user mode. "
1274 "Aborting\n");
1275 break;
1276 case POWERPC_EXCP_MCHECK: /* Machine check exception */
1277 cpu_abort(env, "Machine check exception while in user mode. "
1278 "Aborting\n");
1279 break;
1280 case POWERPC_EXCP_DSI: /* Data storage exception */
1281 EXCP_DUMP(env, "Invalid data memory access: 0x" TARGET_FMT_lx "\n",
1282 env->spr[SPR_DAR]);
1283 /* XXX: check this. Seems bugged */
1284 switch (env->error_code & 0xFF000000) {
1285 case 0x40000000:
1286 info.si_signo = TARGET_SIGSEGV;
1287 info.si_errno = 0;
1288 info.si_code = TARGET_SEGV_MAPERR;
1289 break;
1290 case 0x04000000:
1291 info.si_signo = TARGET_SIGILL;
1292 info.si_errno = 0;
1293 info.si_code = TARGET_ILL_ILLADR;
1294 break;
1295 case 0x08000000:
1296 info.si_signo = TARGET_SIGSEGV;
1297 info.si_errno = 0;
1298 info.si_code = TARGET_SEGV_ACCERR;
1299 break;
1300 default:
1301 /* Let's send a regular segfault... */
1302 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1303 env->error_code);
1304 info.si_signo = TARGET_SIGSEGV;
1305 info.si_errno = 0;
1306 info.si_code = TARGET_SEGV_MAPERR;
1307 break;
1308 }
1309 info._sifields._sigfault._addr = env->nip;
1310 queue_signal(env, info.si_signo, &info);
1311 break;
1312 case POWERPC_EXCP_ISI: /* Instruction storage exception */
1313 EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" TARGET_FMT_lx
1314 "\n", env->spr[SPR_SRR0]);
1315 /* XXX: check this */
1316 switch (env->error_code & 0xFF000000) {
1317 case 0x40000000:
1318 info.si_signo = TARGET_SIGSEGV;
1319 info.si_errno = 0;
1320 info.si_code = TARGET_SEGV_MAPERR;
1321 break;
1322 case 0x10000000:
1323 case 0x08000000:
1324 info.si_signo = TARGET_SIGSEGV;
1325 info.si_errno = 0;
1326 info.si_code = TARGET_SEGV_ACCERR;
1327 break;
1328 default:
1329 /* Let's send a regular segfault... */
1330 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1331 env->error_code);
1332 info.si_signo = TARGET_SIGSEGV;
1333 info.si_errno = 0;
1334 info.si_code = TARGET_SEGV_MAPERR;
1335 break;
1336 }
1337 info._sifields._sigfault._addr = env->nip - 4;
1338 queue_signal(env, info.si_signo, &info);
1339 break;
1340 case POWERPC_EXCP_EXTERNAL: /* External input */
1341 cpu_abort(env, "External interrupt while in user mode. "
1342 "Aborting\n");
1343 break;
1344 case POWERPC_EXCP_ALIGN: /* Alignment exception */
1345 EXCP_DUMP(env, "Unaligned memory access\n");
1346 /* XXX: check this */
1347 info.si_signo = TARGET_SIGBUS;
1348 info.si_errno = 0;
1349 info.si_code = TARGET_BUS_ADRALN;
1350 info._sifields._sigfault._addr = env->nip - 4;
1351 queue_signal(env, info.si_signo, &info);
1352 break;
1353 case POWERPC_EXCP_PROGRAM: /* Program exception */
1354 /* XXX: check this */
1355 switch (env->error_code & ~0xF) {
1356 case POWERPC_EXCP_FP:
1357 EXCP_DUMP(env, "Floating point program exception\n");
1358 info.si_signo = TARGET_SIGFPE;
1359 info.si_errno = 0;
1360 switch (env->error_code & 0xF) {
1361 case POWERPC_EXCP_FP_OX:
1362 info.si_code = TARGET_FPE_FLTOVF;
1363 break;
1364 case POWERPC_EXCP_FP_UX:
1365 info.si_code = TARGET_FPE_FLTUND;
1366 break;
1367 case POWERPC_EXCP_FP_ZX:
1368 case POWERPC_EXCP_FP_VXZDZ:
1369 info.si_code = TARGET_FPE_FLTDIV;
1370 break;
1371 case POWERPC_EXCP_FP_XX:
1372 info.si_code = TARGET_FPE_FLTRES;
1373 break;
1374 case POWERPC_EXCP_FP_VXSOFT:
1375 info.si_code = TARGET_FPE_FLTINV;
1376 break;
1377 case POWERPC_EXCP_FP_VXSNAN:
1378 case POWERPC_EXCP_FP_VXISI:
1379 case POWERPC_EXCP_FP_VXIDI:
1380 case POWERPC_EXCP_FP_VXIMZ:
1381 case POWERPC_EXCP_FP_VXVC:
1382 case POWERPC_EXCP_FP_VXSQRT:
1383 case POWERPC_EXCP_FP_VXCVI:
1384 info.si_code = TARGET_FPE_FLTSUB;
1385 break;
1386 default:
1387 EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
1388 env->error_code);
1389 break;
1390 }
1391 break;
1392 case POWERPC_EXCP_INVAL:
1393 EXCP_DUMP(env, "Invalid instruction\n");
1394 info.si_signo = TARGET_SIGILL;
1395 info.si_errno = 0;
1396 switch (env->error_code & 0xF) {
1397 case POWERPC_EXCP_INVAL_INVAL:
1398 info.si_code = TARGET_ILL_ILLOPC;
1399 break;
1400 case POWERPC_EXCP_INVAL_LSWX:
1401 info.si_code = TARGET_ILL_ILLOPN;
1402 break;
1403 case POWERPC_EXCP_INVAL_SPR:
1404 info.si_code = TARGET_ILL_PRVREG;
1405 break;
1406 case POWERPC_EXCP_INVAL_FP:
1407 info.si_code = TARGET_ILL_COPROC;
1408 break;
1409 default:
1410 EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
1411 env->error_code & 0xF);
1412 info.si_code = TARGET_ILL_ILLADR;
1413 break;
1414 }
1415 break;
1416 case POWERPC_EXCP_PRIV:
1417 EXCP_DUMP(env, "Privilege violation\n");
1418 info.si_signo = TARGET_SIGILL;
1419 info.si_errno = 0;
1420 switch (env->error_code & 0xF) {
1421 case POWERPC_EXCP_PRIV_OPC:
1422 info.si_code = TARGET_ILL_PRVOPC;
1423 break;
1424 case POWERPC_EXCP_PRIV_REG:
1425 info.si_code = TARGET_ILL_PRVREG;
1426 break;
1427 default:
1428 EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
1429 env->error_code & 0xF);
1430 info.si_code = TARGET_ILL_PRVOPC;
1431 break;
1432 }
1433 break;
1434 case POWERPC_EXCP_TRAP:
1435 cpu_abort(env, "Tried to call a TRAP\n");
1436 break;
1437 default:
1438 /* Should not happen ! */
1439 cpu_abort(env, "Unknown program exception (%02x)\n",
1440 env->error_code);
1441 break;
1442 }
1443 info._sifields._sigfault._addr = env->nip - 4;
1444 queue_signal(env, info.si_signo, &info);
1445 break;
1446 case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
1447 EXCP_DUMP(env, "No floating point allowed\n");
1448 info.si_signo = TARGET_SIGILL;
1449 info.si_errno = 0;
1450 info.si_code = TARGET_ILL_COPROC;
1451 info._sifields._sigfault._addr = env->nip - 4;
1452 queue_signal(env, info.si_signo, &info);
1453 break;
1454 case POWERPC_EXCP_SYSCALL: /* System call exception */
1455 cpu_abort(env, "Syscall exception while in user mode. "
1456 "Aborting\n");
1457 break;
1458 case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
1459 EXCP_DUMP(env, "No APU instruction allowed\n");
1460 info.si_signo = TARGET_SIGILL;
1461 info.si_errno = 0;
1462 info.si_code = TARGET_ILL_COPROC;
1463 info._sifields._sigfault._addr = env->nip - 4;
1464 queue_signal(env, info.si_signo, &info);
1465 break;
1466 case POWERPC_EXCP_DECR: /* Decrementer exception */
1467 cpu_abort(env, "Decrementer interrupt while in user mode. "
1468 "Aborting\n");
1469 break;
1470 case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
1471 cpu_abort(env, "Fix interval timer interrupt while in user mode. "
1472 "Aborting\n");
1473 break;
1474 case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
1475 cpu_abort(env, "Watchdog timer interrupt while in user mode. "
1476 "Aborting\n");
1477 break;
1478 case POWERPC_EXCP_DTLB: /* Data TLB error */
1479 cpu_abort(env, "Data TLB exception while in user mode. "
1480 "Aborting\n");
1481 break;
1482 case POWERPC_EXCP_ITLB: /* Instruction TLB error */
1483 cpu_abort(env, "Instruction TLB exception while in user mode. "
1484 "Aborting\n");
1485 break;
1486 case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */
1487 EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
1488 info.si_signo = TARGET_SIGILL;
1489 info.si_errno = 0;
1490 info.si_code = TARGET_ILL_COPROC;
1491 info._sifields._sigfault._addr = env->nip - 4;
1492 queue_signal(env, info.si_signo, &info);
1493 break;
1494 case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */
1495 cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
1496 break;
1497 case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */
1498 cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
1499 break;
1500 case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */
1501 cpu_abort(env, "Performance monitor exception not handled\n");
1502 break;
1503 case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
1504 cpu_abort(env, "Doorbell interrupt while in user mode. "
1505 "Aborting\n");
1506 break;
1507 case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
1508 cpu_abort(env, "Doorbell critical interrupt while in user mode. "
1509 "Aborting\n");
1510 break;
1511 case POWERPC_EXCP_RESET: /* System reset exception */
1512 cpu_abort(env, "Reset interrupt while in user mode. "
1513 "Aborting\n");
1514 break;
1515 case POWERPC_EXCP_DSEG: /* Data segment exception */
1516 cpu_abort(env, "Data segment exception while in user mode. "
1517 "Aborting\n");
1518 break;
1519 case POWERPC_EXCP_ISEG: /* Instruction segment exception */
1520 cpu_abort(env, "Instruction segment exception "
1521 "while in user mode. Aborting\n");
1522 break;
1523 /* PowerPC 64 with hypervisor mode support */
1524 case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
1525 cpu_abort(env, "Hypervisor decrementer interrupt "
1526 "while in user mode. Aborting\n");
1527 break;
1528 case POWERPC_EXCP_TRACE: /* Trace exception */
1529 /* Nothing to do:
1530 * we use this exception to emulate step-by-step execution mode.
1531 */
1532 break;
1533 /* PowerPC 64 with hypervisor mode support */
1534 case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
1535 cpu_abort(env, "Hypervisor data storage exception "
1536 "while in user mode. Aborting\n");
1537 break;
1538 case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */
1539 cpu_abort(env, "Hypervisor instruction storage exception "
1540 "while in user mode. Aborting\n");
1541 break;
1542 case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
1543 cpu_abort(env, "Hypervisor data segment exception "
1544 "while in user mode. Aborting\n");
1545 break;
1546 case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */
1547 cpu_abort(env, "Hypervisor instruction segment exception "
1548 "while in user mode. Aborting\n");
1549 break;
1550 case POWERPC_EXCP_VPU: /* Vector unavailable exception */
1551 EXCP_DUMP(env, "No Altivec instructions allowed\n");
1552 info.si_signo = TARGET_SIGILL;
1553 info.si_errno = 0;
1554 info.si_code = TARGET_ILL_COPROC;
1555 info._sifields._sigfault._addr = env->nip - 4;
1556 queue_signal(env, info.si_signo, &info);
1557 break;
1558 case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */
1559 cpu_abort(env, "Programable interval timer interrupt "
1560 "while in user mode. Aborting\n");
1561 break;
1562 case POWERPC_EXCP_IO: /* IO error exception */
1563 cpu_abort(env, "IO error exception while in user mode. "
1564 "Aborting\n");
1565 break;
1566 case POWERPC_EXCP_RUNM: /* Run mode exception */
1567 cpu_abort(env, "Run mode exception while in user mode. "
1568 "Aborting\n");
1569 break;
1570 case POWERPC_EXCP_EMUL: /* Emulation trap exception */
1571 cpu_abort(env, "Emulation trap exception not handled\n");
1572 break;
1573 case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
1574 cpu_abort(env, "Instruction fetch TLB exception "
1575 "while in user-mode. Aborting");
1576 break;
1577 case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
1578 cpu_abort(env, "Data load TLB exception while in user-mode. "
1579 "Aborting");
1580 break;
1581 case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
1582 cpu_abort(env, "Data store TLB exception while in user-mode. "
1583 "Aborting");
1584 break;
1585 case POWERPC_EXCP_FPA: /* Floating-point assist exception */
1586 cpu_abort(env, "Floating-point assist exception not handled\n");
1587 break;
1588 case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
1589 cpu_abort(env, "Instruction address breakpoint exception "
1590 "not handled\n");
1591 break;
1592 case POWERPC_EXCP_SMI: /* System management interrupt */
1593 cpu_abort(env, "System management interrupt while in user mode. "
1594 "Aborting\n");
1595 break;
1596 case POWERPC_EXCP_THERM: /* Thermal interrupt */
1597 cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
1598 "Aborting\n");
1599 break;
1600 case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */
1601 cpu_abort(env, "Performance monitor exception not handled\n");
1602 break;
1603 case POWERPC_EXCP_VPUA: /* Vector assist exception */
1604 cpu_abort(env, "Vector assist exception not handled\n");
1605 break;
1606 case POWERPC_EXCP_SOFTP: /* Soft patch exception */
1607 cpu_abort(env, "Soft patch exception not handled\n");
1608 break;
1609 case POWERPC_EXCP_MAINT: /* Maintenance exception */
1610 cpu_abort(env, "Maintenance exception while in user mode. "
1611 "Aborting\n");
1612 break;
1613 case POWERPC_EXCP_STOP: /* stop translation */
1614 /* We did invalidate the instruction cache. Go on */
1615 break;
1616 case POWERPC_EXCP_BRANCH: /* branch instruction: */
1617 /* We just stopped because of a branch. Go on */
1618 break;
1619 case POWERPC_EXCP_SYSCALL_USER:
1620 /* system call in user-mode emulation */
1621 /* WARNING:
1622 * PPC ABI uses overflow flag in cr0 to signal an error
1623 * in syscalls.
1624 */
1625 #if 0
1626 printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
1627 env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
1628 #endif
1629 env->crf[0] &= ~0x1;
1630 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
1631 env->gpr[5], env->gpr[6], env->gpr[7],
1632 env->gpr[8]);
1633 if (ret == (uint32_t)(-TARGET_QEMU_ESIGRETURN)) {
1634 /* Returning from a successful sigreturn syscall.
1635 Avoid corrupting register state. */
1636 break;
1637 }
1638 if (ret > (uint32_t)(-515)) {
1639 env->crf[0] |= 0x1;
1640 ret = -ret;
1641 }
1642 env->gpr[3] = ret;
1643 #if 0
1644 printf("syscall returned 0x%08x (%d)\n", ret, ret);
1645 #endif
1646 break;
1647 case POWERPC_EXCP_STCX:
1648 if (do_store_exclusive(env)) {
1649 info.si_signo = TARGET_SIGSEGV;
1650 info.si_errno = 0;
1651 info.si_code = TARGET_SEGV_MAPERR;
1652 info._sifields._sigfault._addr = env->nip;
1653 queue_signal(env, info.si_signo, &info);
1654 }
1655 break;
1656 case EXCP_DEBUG:
1657 {
1658 int sig;
1659
1660 sig = gdb_handlesig(env, TARGET_SIGTRAP);
1661 if (sig) {
1662 info.si_signo = sig;
1663 info.si_errno = 0;
1664 info.si_code = TARGET_TRAP_BRKPT;
1665 queue_signal(env, info.si_signo, &info);
1666 }
1667 }
1668 break;
1669 case EXCP_INTERRUPT:
1670 /* just indicate that signals should be handled asap */
1671 break;
1672 default:
1673 cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
1674 break;
1675 }
1676 process_pending_signals(env);
1677 }
1678 }
1679 #endif
1680
1681 #ifdef TARGET_MIPS
1682
1683 #define MIPS_SYS(name, args) args,
1684
1685 static const uint8_t mips_syscall_args[] = {
1686 MIPS_SYS(sys_syscall , 0) /* 4000 */
1687 MIPS_SYS(sys_exit , 1)
1688 MIPS_SYS(sys_fork , 0)
1689 MIPS_SYS(sys_read , 3)
1690 MIPS_SYS(sys_write , 3)
1691 MIPS_SYS(sys_open , 3) /* 4005 */
1692 MIPS_SYS(sys_close , 1)
1693 MIPS_SYS(sys_waitpid , 3)
1694 MIPS_SYS(sys_creat , 2)
1695 MIPS_SYS(sys_link , 2)
1696 MIPS_SYS(sys_unlink , 1) /* 4010 */
1697 MIPS_SYS(sys_execve , 0)
1698 MIPS_SYS(sys_chdir , 1)
1699 MIPS_SYS(sys_time , 1)
1700 MIPS_SYS(sys_mknod , 3)
1701 MIPS_SYS(sys_chmod , 2) /* 4015 */
1702 MIPS_SYS(sys_lchown , 3)
1703 MIPS_SYS(sys_ni_syscall , 0)
1704 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1705 MIPS_SYS(sys_lseek , 3)
1706 MIPS_SYS(sys_getpid , 0) /* 4020 */
1707 MIPS_SYS(sys_mount , 5)
1708 MIPS_SYS(sys_oldumount , 1)
1709 MIPS_SYS(sys_setuid , 1)
1710 MIPS_SYS(sys_getuid , 0)
1711 MIPS_SYS(sys_stime , 1) /* 4025 */
1712 MIPS_SYS(sys_ptrace , 4)
1713 MIPS_SYS(sys_alarm , 1)
1714 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1715 MIPS_SYS(sys_pause , 0)
1716 MIPS_SYS(sys_utime , 2) /* 4030 */
1717 MIPS_SYS(sys_ni_syscall , 0)
1718 MIPS_SYS(sys_ni_syscall , 0)
1719 MIPS_SYS(sys_access , 2)
1720 MIPS_SYS(sys_nice , 1)
1721 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1722 MIPS_SYS(sys_sync , 0)
1723 MIPS_SYS(sys_kill , 2)
1724 MIPS_SYS(sys_rename , 2)
1725 MIPS_SYS(sys_mkdir , 2)
1726 MIPS_SYS(sys_rmdir , 1) /* 4040 */
1727 MIPS_SYS(sys_dup , 1)
1728 MIPS_SYS(sys_pipe , 0)
1729 MIPS_SYS(sys_times , 1)
1730 MIPS_SYS(sys_ni_syscall , 0)
1731 MIPS_SYS(sys_brk , 1) /* 4045 */
1732 MIPS_SYS(sys_setgid , 1)
1733 MIPS_SYS(sys_getgid , 0)
1734 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1735 MIPS_SYS(sys_geteuid , 0)
1736 MIPS_SYS(sys_getegid , 0) /* 4050 */
1737 MIPS_SYS(sys_acct , 0)
1738 MIPS_SYS(sys_umount , 2)
1739 MIPS_SYS(sys_ni_syscall , 0)
1740 MIPS_SYS(sys_ioctl , 3)
1741 MIPS_SYS(sys_fcntl , 3) /* 4055 */
1742 MIPS_SYS(sys_ni_syscall , 2)
1743 MIPS_SYS(sys_setpgid , 2)
1744 MIPS_SYS(sys_ni_syscall , 0)
1745 MIPS_SYS(sys_olduname , 1)
1746 MIPS_SYS(sys_umask , 1) /* 4060 */
1747 MIPS_SYS(sys_chroot , 1)
1748 MIPS_SYS(sys_ustat , 2)
1749 MIPS_SYS(sys_dup2 , 2)
1750 MIPS_SYS(sys_getppid , 0)
1751 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1752 MIPS_SYS(sys_setsid , 0)
1753 MIPS_SYS(sys_sigaction , 3)
1754 MIPS_SYS(sys_sgetmask , 0)
1755 MIPS_SYS(sys_ssetmask , 1)
1756 MIPS_SYS(sys_setreuid , 2) /* 4070 */
1757 MIPS_SYS(sys_setregid , 2)
1758 MIPS_SYS(sys_sigsuspend , 0)
1759 MIPS_SYS(sys_sigpending , 1)
1760 MIPS_SYS(sys_sethostname , 2)
1761 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1762 MIPS_SYS(sys_getrlimit , 2)
1763 MIPS_SYS(sys_getrusage , 2)
1764 MIPS_SYS(sys_gettimeofday, 2)
1765 MIPS_SYS(sys_settimeofday, 2)
1766 MIPS_SYS(sys_getgroups , 2) /* 4080 */
1767 MIPS_SYS(sys_setgroups , 2)
1768 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1769 MIPS_SYS(sys_symlink , 2)
1770 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1771 MIPS_SYS(sys_readlink , 3) /* 4085 */
1772 MIPS_SYS(sys_uselib , 1)
1773 MIPS_SYS(sys_swapon , 2)
1774 MIPS_SYS(sys_reboot , 3)
1775 MIPS_SYS(old_readdir , 3)
1776 MIPS_SYS(old_mmap , 6) /* 4090 */
1777 MIPS_SYS(sys_munmap , 2)
1778 MIPS_SYS(sys_truncate , 2)
1779 MIPS_SYS(sys_ftruncate , 2)
1780 MIPS_SYS(sys_fchmod , 2)
1781 MIPS_SYS(sys_fchown , 3) /* 4095 */
1782 MIPS_SYS(sys_getpriority , 2)
1783 MIPS_SYS(sys_setpriority , 3)
1784 MIPS_SYS(sys_ni_syscall , 0)
1785 MIPS_SYS(sys_statfs , 2)
1786 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1787 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1788 MIPS_SYS(sys_socketcall , 2)
1789 MIPS_SYS(sys_syslog , 3)
1790 MIPS_SYS(sys_setitimer , 3)
1791 MIPS_SYS(sys_getitimer , 2) /* 4105 */
1792 MIPS_SYS(sys_newstat , 2)
1793 MIPS_SYS(sys_newlstat , 2)
1794 MIPS_SYS(sys_newfstat , 2)
1795 MIPS_SYS(sys_uname , 1)
1796 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1797 MIPS_SYS(sys_vhangup , 0)
1798 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1799 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1800 MIPS_SYS(sys_wait4 , 4)
1801 MIPS_SYS(sys_swapoff , 1) /* 4115 */
1802 MIPS_SYS(sys_sysinfo , 1)
1803 MIPS_SYS(sys_ipc , 6)
1804 MIPS_SYS(sys_fsync , 1)
1805 MIPS_SYS(sys_sigreturn , 0)
1806 MIPS_SYS(sys_clone , 6) /* 4120 */
1807 MIPS_SYS(sys_setdomainname, 2)
1808 MIPS_SYS(sys_newuname , 1)
1809 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1810 MIPS_SYS(sys_adjtimex , 1)
1811 MIPS_SYS(sys_mprotect , 3) /* 4125 */
1812 MIPS_SYS(sys_sigprocmask , 3)
1813 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1814 MIPS_SYS(sys_init_module , 5)
1815 MIPS_SYS(sys_delete_module, 1)
1816 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1817 MIPS_SYS(sys_quotactl , 0)
1818 MIPS_SYS(sys_getpgid , 1)
1819 MIPS_SYS(sys_fchdir , 1)
1820 MIPS_SYS(sys_bdflush , 2)
1821 MIPS_SYS(sys_sysfs , 3) /* 4135 */
1822 MIPS_SYS(sys_personality , 1)
1823 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1824 MIPS_SYS(sys_setfsuid , 1)
1825 MIPS_SYS(sys_setfsgid , 1)
1826 MIPS_SYS(sys_llseek , 5) /* 4140 */
1827 MIPS_SYS(sys_getdents , 3)
1828 MIPS_SYS(sys_select , 5)
1829 MIPS_SYS(sys_flock , 2)
1830 MIPS_SYS(sys_msync , 3)
1831 MIPS_SYS(sys_readv , 3) /* 4145 */
1832 MIPS_SYS(sys_writev , 3)
1833 MIPS_SYS(sys_cacheflush , 3)
1834 MIPS_SYS(sys_cachectl , 3)
1835 MIPS_SYS(sys_sysmips , 4)
1836 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1837 MIPS_SYS(sys_getsid , 1)
1838 MIPS_SYS(sys_fdatasync , 0)
1839 MIPS_SYS(sys_sysctl , 1)
1840 MIPS_SYS(sys_mlock , 2)
1841 MIPS_SYS(sys_munlock , 2) /* 4155 */
1842 MIPS_SYS(sys_mlockall , 1)
1843 MIPS_SYS(sys_munlockall , 0)
1844 MIPS_SYS(sys_sched_setparam, 2)
1845 MIPS_SYS(sys_sched_getparam, 2)
1846 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1847 MIPS_SYS(sys_sched_getscheduler, 1)
1848 MIPS_SYS(sys_sched_yield , 0)
1849 MIPS_SYS(sys_sched_get_priority_max, 1)
1850 MIPS_SYS(sys_sched_get_priority_min, 1)
1851 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1852 MIPS_SYS(sys_nanosleep, 2)
1853 MIPS_SYS(sys_mremap , 4)
1854 MIPS_SYS(sys_accept , 3)
1855 MIPS_SYS(sys_bind , 3)
1856 MIPS_SYS(sys_connect , 3) /* 4170 */
1857 MIPS_SYS(sys_getpeername , 3)
1858 MIPS_SYS(sys_getsockname , 3)
1859 MIPS_SYS(sys_getsockopt , 5)
1860 MIPS_SYS(sys_listen , 2)
1861 MIPS_SYS(sys_recv , 4) /* 4175 */
1862 MIPS_SYS(sys_recvfrom , 6)
1863 MIPS_SYS(sys_recvmsg , 3)
1864 MIPS_SYS(sys_send , 4)
1865 MIPS_SYS(sys_sendmsg , 3)
1866 MIPS_SYS(sys_sendto , 6) /* 4180 */
1867 MIPS_SYS(sys_setsockopt , 5)
1868 MIPS_SYS(sys_shutdown , 2)
1869 MIPS_SYS(sys_socket , 3)
1870 MIPS_SYS(sys_socketpair , 4)
1871 MIPS_SYS(sys_setresuid , 3) /* 4185 */
1872 MIPS_SYS(sys_getresuid , 3)
1873 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1874 MIPS_SYS(sys_poll , 3)
1875 MIPS_SYS(sys_nfsservctl , 3)
1876 MIPS_SYS(sys_setresgid , 3) /* 4190 */
1877 MIPS_SYS(sys_getresgid , 3)
1878 MIPS_SYS(sys_prctl , 5)
1879 MIPS_SYS(sys_rt_sigreturn, 0)
1880 MIPS_SYS(sys_rt_sigaction, 4)
1881 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1882 MIPS_SYS(sys_rt_sigpending, 2)
1883 MIPS_SYS(sys_rt_sigtimedwait, 4)
1884 MIPS_SYS(sys_rt_sigqueueinfo, 3)
1885 MIPS_SYS(sys_rt_sigsuspend, 0)
1886 MIPS_SYS(sys_pread64 , 6) /* 4200 */
1887 MIPS_SYS(sys_pwrite64 , 6)
1888 MIPS_SYS(sys_chown , 3)
1889 MIPS_SYS(sys_getcwd , 2)
1890 MIPS_SYS(sys_capget , 2)
1891 MIPS_SYS(sys_capset , 2) /* 4205 */
1892 MIPS_SYS(sys_sigaltstack , 0)
1893 MIPS_SYS(sys_sendfile , 4)
1894 MIPS_SYS(sys_ni_syscall , 0)
1895 MIPS_SYS(sys_ni_syscall , 0)
1896 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
1897 MIPS_SYS(sys_truncate64 , 4)
1898 MIPS_SYS(sys_ftruncate64 , 4)
1899 MIPS_SYS(sys_stat64 , 2)
1900 MIPS_SYS(sys_lstat64 , 2)
1901 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
1902 MIPS_SYS(sys_pivot_root , 2)
1903 MIPS_SYS(sys_mincore , 3)
1904 MIPS_SYS(sys_madvise , 3)
1905 MIPS_SYS(sys_getdents64 , 3)
1906 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
1907 MIPS_SYS(sys_ni_syscall , 0)
1908 MIPS_SYS(sys_gettid , 0)
1909 MIPS_SYS(sys_readahead , 5)
1910 MIPS_SYS(sys_setxattr , 5)
1911 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
1912 MIPS_SYS(sys_fsetxattr , 5)
1913 MIPS_SYS(sys_getxattr , 4)
1914 MIPS_SYS(sys_lgetxattr , 4)
1915 MIPS_SYS(sys_fgetxattr , 4)
1916 MIPS_SYS(sys_listxattr , 3) /* 4230 */
1917 MIPS_SYS(sys_llistxattr , 3)
1918 MIPS_SYS(sys_flistxattr , 3)
1919 MIPS_SYS(sys_removexattr , 2)
1920 MIPS_SYS(sys_lremovexattr, 2)
1921 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
1922 MIPS_SYS(sys_tkill , 2)
1923 MIPS_SYS(sys_sendfile64 , 5)
1924 MIPS_SYS(sys_futex , 2)
1925 MIPS_SYS(sys_sched_setaffinity, 3)
1926 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
1927 MIPS_SYS(sys_io_setup , 2)
1928 MIPS_SYS(sys_io_destroy , 1)
1929 MIPS_SYS(sys_io_getevents, 5)
1930 MIPS_SYS(sys_io_submit , 3)
1931 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
1932 MIPS_SYS(sys_exit_group , 1)
1933 MIPS_SYS(sys_lookup_dcookie, 3)
1934 MIPS_SYS(sys_epoll_create, 1)
1935 MIPS_SYS(sys_epoll_ctl , 4)
1936 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
1937 MIPS_SYS(sys_remap_file_pages, 5)
1938 MIPS_SYS(sys_set_tid_address, 1)
1939 MIPS_SYS(sys_restart_syscall, 0)
1940 MIPS_SYS(sys_fadvise64_64, 7)
1941 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
1942 MIPS_SYS(sys_fstatfs64 , 2)
1943 MIPS_SYS(sys_timer_create, 3)
1944 MIPS_SYS(sys_timer_settime, 4)
1945 MIPS_SYS(sys_timer_gettime, 2)
1946 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
1947 MIPS_SYS(sys_timer_delete, 1)
1948 MIPS_SYS(sys_clock_settime, 2)
1949 MIPS_SYS(sys_clock_gettime, 2)
1950 MIPS_SYS(sys_clock_getres, 2)
1951 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
1952 MIPS_SYS(sys_tgkill , 3)
1953 MIPS_SYS(sys_utimes , 2)
1954 MIPS_SYS(sys_mbind , 4)
1955 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
1956 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
1957 MIPS_SYS(sys_mq_open , 4)
1958 MIPS_SYS(sys_mq_unlink , 1)
1959 MIPS_SYS(sys_mq_timedsend, 5)
1960 MIPS_SYS(sys_mq_timedreceive, 5)
1961 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
1962 MIPS_SYS(sys_mq_getsetattr, 3)
1963 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
1964 MIPS_SYS(sys_waitid , 4)
1965 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
1966 MIPS_SYS(sys_add_key , 5)
1967 MIPS_SYS(sys_request_key, 4)
1968 MIPS_SYS(sys_keyctl , 5)
1969 MIPS_SYS(sys_set_thread_area, 1)
1970 MIPS_SYS(sys_inotify_init, 0)
1971 MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
1972 MIPS_SYS(sys_inotify_rm_watch, 2)
1973 MIPS_SYS(sys_migrate_pages, 4)
1974 MIPS_SYS(sys_openat, 4)
1975 MIPS_SYS(sys_mkdirat, 3)
1976 MIPS_SYS(sys_mknodat, 4) /* 4290 */
1977 MIPS_SYS(sys_fchownat, 5)
1978 MIPS_SYS(sys_futimesat, 3)
1979 MIPS_SYS(sys_fstatat64, 4)
1980 MIPS_SYS(sys_unlinkat, 3)
1981 MIPS_SYS(sys_renameat, 4) /* 4295 */
1982 MIPS_SYS(sys_linkat, 5)
1983 MIPS_SYS(sys_symlinkat, 3)
1984 MIPS_SYS(sys_readlinkat, 4)
1985 MIPS_SYS(sys_fchmodat, 3)
1986 MIPS_SYS(sys_faccessat, 3) /* 4300 */
1987 MIPS_SYS(sys_pselect6, 6)
1988 MIPS_SYS(sys_ppoll, 5)
1989 MIPS_SYS(sys_unshare, 1)
1990 MIPS_SYS(sys_splice, 4)
1991 MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
1992 MIPS_SYS(sys_tee, 4)
1993 MIPS_SYS(sys_vmsplice, 4)
1994 MIPS_SYS(sys_move_pages, 6)
1995 MIPS_SYS(sys_set_robust_list, 2)
1996 MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
1997 MIPS_SYS(sys_kexec_load, 4)
1998 MIPS_SYS(sys_getcpu, 3)
1999 MIPS_SYS(sys_epoll_pwait, 6)
2000 MIPS_SYS(sys_ioprio_set, 3)
2001 MIPS_SYS(sys_ioprio_get, 2)
2002 };
2003
2004 #undef MIPS_SYS
2005
2006 static int do_store_exclusive(CPUMIPSState *env)
2007 {
2008 target_ulong addr;
2009 target_ulong page_addr;
2010 target_ulong val;
2011 int flags;
2012 int segv = 0;
2013 int reg;
2014 int d;
2015
2016 addr = env->lladdr;
2017 page_addr = addr & TARGET_PAGE_MASK;
2018 start_exclusive();
2019 mmap_lock();
2020 flags = page_get_flags(page_addr);
2021 if ((flags & PAGE_READ) == 0) {
2022 segv = 1;
2023 } else {
2024 reg = env->llreg & 0x1f;
2025 d = (env->llreg & 0x20) != 0;
2026 if (d) {
2027 segv = get_user_s64(val, addr);
2028 } else {
2029 segv = get_user_s32(val, addr);
2030 }
2031 if (!segv) {
2032 if (val != env->llval) {
2033 env->active_tc.gpr[reg] = 0;
2034 } else {
2035 if (d) {
2036 segv = put_user_u64(env->llnewval, addr);
2037 } else {
2038 segv = put_user_u32(env->llnewval, addr);
2039 }
2040 if (!segv) {
2041 env->active_tc.gpr[reg] = 1;
2042 }
2043 }
2044 }
2045 }
2046 env->lladdr = -1;
2047 if (!segv) {
2048 env->active_tc.PC += 4;
2049 }
2050 mmap_unlock();
2051 end_exclusive();
2052 return segv;
2053 }
2054
2055 void cpu_loop(CPUMIPSState *env)
2056 {
2057 target_siginfo_t info;
2058 int trapnr, ret;
2059 unsigned int syscall_num;
2060
2061 for(;;) {
2062 cpu_exec_start(env);
2063 trapnr = cpu_mips_exec(env);
2064 cpu_exec_end(env);
2065 switch(trapnr) {
2066 case EXCP_SYSCALL:
2067 syscall_num = env->active_tc.gpr[2] - 4000;
2068 env->active_tc.PC += 4;
2069 if (syscall_num >= sizeof(mips_syscall_args)) {
2070 ret = -ENOSYS;
2071 } else {
2072 int nb_args;
2073 abi_ulong sp_reg;
2074 abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
2075
2076 nb_args = mips_syscall_args[syscall_num];
2077 sp_reg = env->active_tc.gpr[29];
2078 switch (nb_args) {
2079 /* these arguments are taken from the stack */
2080 /* FIXME - what to do if get_user() fails? */
2081 case 8: get_user_ual(arg8, sp_reg + 28);
2082 case 7: get_user_ual(arg7, sp_reg + 24);
2083 case 6: get_user_ual(arg6, sp_reg + 20);
2084 case 5: get_user_ual(arg5, sp_reg + 16);
2085 default:
2086 break;
2087 }
2088 ret = do_syscall(env, env->active_tc.gpr[2],
2089 env->active_tc.gpr[4],
2090 env->active_tc.gpr[5],
2091 env->active_tc.gpr[6],
2092 env->active_tc.gpr[7],
2093 arg5, arg6/*, arg7, arg8*/);
2094 }
2095 if (ret == -TARGET_QEMU_ESIGRETURN) {
2096 /* Returning from a successful sigreturn syscall.
2097 Avoid clobbering register state. */
2098 break;
2099 }
2100 if ((unsigned int)ret >= (unsigned int)(-1133)) {
2101 env->active_tc.gpr[7] = 1; /* error flag */
2102 ret = -ret;
2103 } else {
2104 env->active_tc.gpr[7] = 0; /* error flag */
2105 }
2106 env->active_tc.gpr[2] = ret;
2107 break;
2108 case EXCP_TLBL:
2109 case EXCP_TLBS:
2110 info.si_signo = TARGET_SIGSEGV;
2111 info.si_errno = 0;
2112 /* XXX: check env->error_code */
2113 info.si_code = TARGET_SEGV_MAPERR;
2114 info._sifields._sigfault._addr = env->CP0_BadVAddr;
2115 queue_signal(env, info.si_signo, &info);
2116 break;
2117 case EXCP_CpU:
2118 case EXCP_RI:
2119 info.si_signo = TARGET_SIGILL;
2120 info.si_errno = 0;
2121 info.si_code = 0;
2122 queue_signal(env, info.si_signo, &info);
2123 break;
2124 case EXCP_INTERRUPT:
2125 /* just indicate that signals should be handled asap */
2126 break;
2127 case EXCP_DEBUG:
2128 {
2129 int sig;
2130
2131 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2132 if (sig)
2133 {
2134 info.si_signo = sig;
2135 info.si_errno = 0;
2136 info.si_code = TARGET_TRAP_BRKPT;
2137 queue_signal(env, info.si_signo, &info);
2138 }
2139 }
2140 break;
2141 case EXCP_SC:
2142 if (do_store_exclusive(env)) {
2143 info.si_signo = TARGET_SIGSEGV;
2144 info.si_errno = 0;
2145 info.si_code = TARGET_SEGV_MAPERR;
2146 info._sifields._sigfault._addr = env->active_tc.PC;
2147 queue_signal(env, info.si_signo, &info);
2148 }
2149 break;
2150 default:
2151 // error:
2152 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
2153 trapnr);
2154 cpu_dump_state(env, stderr, fprintf, 0);
2155 abort();
2156 }
2157 process_pending_signals(env);
2158 }
2159 }
2160 #endif
2161
2162 #ifdef TARGET_SH4
2163 void cpu_loop (CPUState *env)
2164 {
2165 int trapnr, ret;
2166 target_siginfo_t info;
2167
2168 while (1) {
2169 trapnr = cpu_sh4_exec (env);
2170
2171 switch (trapnr) {
2172 case 0x160:
2173 env->pc += 2;
2174 ret = do_syscall(env,
2175 env->gregs[3],
2176 env->gregs[4],
2177 env->gregs[5],
2178 env->gregs[6],
2179 env->gregs[7],
2180 env->gregs[0],
2181 env->gregs[1]);
2182 env->gregs[0] = ret;
2183 break;
2184 case EXCP_INTERRUPT:
2185 /* just indicate that signals should be handled asap */
2186 break;
2187 case EXCP_DEBUG:
2188 {
2189 int sig;
2190
2191 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2192 if (sig)
2193 {
2194 info.si_signo = sig;
2195 info.si_errno = 0;
2196 info.si_code = TARGET_TRAP_BRKPT;
2197 queue_signal(env, info.si_signo, &info);
2198 }
2199 }
2200 break;
2201 case 0xa0:
2202 case 0xc0:
2203 info.si_signo = SIGSEGV;
2204 info.si_errno = 0;
2205 info.si_code = TARGET_SEGV_MAPERR;
2206 info._sifields._sigfault._addr = env->tea;
2207 queue_signal(env, info.si_signo, &info);
2208 break;
2209
2210 default:
2211 printf ("Unhandled trap: 0x%x\n", trapnr);
2212 cpu_dump_state(env, stderr, fprintf, 0);
2213 exit (1);
2214 }
2215 process_pending_signals (env);
2216 }
2217 }
2218 #endif
2219
2220 #ifdef TARGET_CRIS
2221 void cpu_loop (CPUState *env)
2222 {
2223 int trapnr, ret;
2224 target_siginfo_t info;
2225
2226 while (1) {
2227 trapnr = cpu_cris_exec (env);
2228 switch (trapnr) {
2229 case 0xaa:
2230 {
2231 info.si_signo = SIGSEGV;
2232 info.si_errno = 0;
2233 /* XXX: check env->error_code */
2234 info.si_code = TARGET_SEGV_MAPERR;
2235 info._sifields._sigfault._addr = env->pregs[PR_EDA];
2236 queue_signal(env, info.si_signo, &info);
2237 }
2238 break;
2239 case EXCP_INTERRUPT:
2240 /* just indicate that signals should be handled asap */
2241 break;
2242 case EXCP_BREAK:
2243 ret = do_syscall(env,
2244 env->regs[9],
2245 env->regs[10],
2246 env->regs[11],
2247 env->regs[12],
2248 env->regs[13],
2249 env->pregs[7],
2250 env->pregs[11]);
2251 env->regs[10] = ret;
2252 break;
2253 case EXCP_DEBUG:
2254 {
2255 int sig;
2256
2257 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2258 if (sig)
2259 {
2260 info.si_signo = sig;
2261 info.si_errno = 0;
2262 info.si_code = TARGET_TRAP_BRKPT;
2263 queue_signal(env, info.si_signo, &info);
2264 }
2265 }
2266 break;
2267 default:
2268 printf ("Unhandled trap: 0x%x\n", trapnr);
2269 cpu_dump_state(env, stderr, fprintf, 0);
2270 exit (1);
2271 }
2272 process_pending_signals (env);
2273 }
2274 }
2275 #endif
2276
2277 #ifdef TARGET_MICROBLAZE
2278 void cpu_loop (CPUState *env)
2279 {
2280 int trapnr, ret;
2281 target_siginfo_t info;
2282
2283 while (1) {
2284 trapnr = cpu_mb_exec (env);
2285 switch (trapnr) {
2286 case 0xaa:
2287 {
2288 info.si_signo = SIGSEGV;
2289 info.si_errno = 0;
2290 /* XXX: check env->error_code */
2291 info.si_code = TARGET_SEGV_MAPERR;
2292 info._sifields._sigfault._addr = 0;
2293 queue_signal(env, info.si_signo, &info);
2294 }
2295 break;
2296 case EXCP_INTERRUPT:
2297 /* just indicate that signals should be handled asap */
2298 break;
2299 case EXCP_BREAK:
2300 /* Return address is 4 bytes after the call. */
2301 env->regs[14] += 4;
2302 ret = do_syscall(env,
2303 env->regs[12],
2304 env->regs[5],
2305 env->regs[6],
2306 env->regs[7],
2307 env->regs[8],
2308 env->regs[9],
2309 env->regs[10]);
2310 env->regs[3] = ret;
2311 env->sregs[SR_PC] = env->regs[14];
2312 break;
2313 case EXCP_HW_EXCP:
2314 env->regs[17] = env->sregs[SR_PC] + 4;
2315 if (env->iflags & D_FLAG) {
2316 env->sregs[SR_ESR] |= 1 << 12;
2317 env->sregs[SR_PC] -= 4;
2318 /* FIXME: if branch was immed, replay the imm aswell. */
2319 }
2320
2321 env->iflags &= ~(IMM_FLAG | D_FLAG);
2322
2323 switch (env->sregs[SR_ESR] & 31) {
2324 case ESR_EC_FPU:
2325 info.si_signo = SIGFPE;
2326 info.si_errno = 0;
2327 if (env->sregs[SR_FSR] & FSR_IO) {
2328 info.si_code = TARGET_FPE_FLTINV;
2329 }
2330 if (env->sregs[SR_FSR] & FSR_DZ) {
2331 info.si_code = TARGET_FPE_FLTDIV;
2332 }
2333 info._sifields._sigfault._addr = 0;
2334 queue_signal(env, info.si_signo, &info);
2335 break;
2336 default:
2337 printf ("Unhandled hw-exception: 0x%x\n",
2338 env->sregs[SR_ESR] & ESR_EC_MASK);
2339 cpu_dump_state(env, stderr, fprintf, 0);
2340 exit (1);
2341 break;
2342 }
2343 break;
2344 case EXCP_DEBUG:
2345 {
2346 int sig;
2347
2348 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2349 if (sig)
2350 {
2351 info.si_signo = sig;
2352 info.si_errno = 0;
2353 info.si_code = TARGET_TRAP_BRKPT;
2354 queue_signal(env, info.si_signo, &info);
2355 }
2356 }
2357 break;
2358 default:
2359 printf ("Unhandled trap: 0x%x\n", trapnr);
2360 cpu_dump_state(env, stderr, fprintf, 0);
2361 exit (1);
2362 }
2363 process_pending_signals (env);
2364 }
2365 }
2366 #endif
2367
2368 #ifdef TARGET_M68K
2369
2370 void cpu_loop(CPUM68KState *env)
2371 {
2372 int trapnr;
2373 unsigned int n;
2374 target_siginfo_t info;
2375 TaskState *ts = env->opaque;
2376
2377 for(;;) {
2378 trapnr = cpu_m68k_exec(env);
2379 switch(trapnr) {
2380 case EXCP_ILLEGAL:
2381 {
2382 if (ts->sim_syscalls) {
2383 uint16_t nr;
2384 nr = lduw(env->pc + 2);
2385 env->pc += 4;
2386 do_m68k_simcall(env, nr);
2387 } else {
2388 goto do_sigill;
2389 }
2390 }
2391 break;
2392 case EXCP_HALT_INSN:
2393 /* Semihosing syscall. */
2394 env->pc += 4;
2395 do_m68k_semihosting(env, env->dregs[0]);
2396 break;
2397 case EXCP_LINEA:
2398 case EXCP_LINEF:
2399 case EXCP_UNSUPPORTED:
2400 do_sigill:
2401 info.si_signo = SIGILL;
2402 info.si_errno = 0;
2403 info.si_code = TARGET_ILL_ILLOPN;
2404 info._sifields._sigfault._addr = env->pc;
2405 queue_signal(env, info.si_signo, &info);
2406 break;
2407 case EXCP_TRAP0:
2408 {
2409 ts->sim_syscalls = 0;
2410 n = env->dregs[0];
2411 env->pc += 2;
2412 env->dregs[0] = do_syscall(env,
2413 n,
2414 env->dregs[1],
2415 env->dregs[2],
2416 env->dregs[3],
2417 env->dregs[4],
2418 env->dregs[5],
2419 env->aregs[0]);
2420 }
2421 break;
2422 case EXCP_INTERRUPT:
2423 /* just indicate that signals should be handled asap */
2424 break;
2425 case EXCP_ACCESS:
2426 {
2427 info.si_signo = SIGSEGV;
2428 info.si_errno = 0;
2429 /* XXX: check env->error_code */
2430 info.si_code = TARGET_SEGV_MAPERR;
2431 info._sifields._sigfault._addr = env->mmu.ar;
2432 queue_signal(env, info.si_signo, &info);
2433 }
2434 break;
2435 case EXCP_DEBUG:
2436 {
2437 int sig;
2438
2439 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2440 if (sig)
2441 {
2442 info.si_signo = sig;
2443 info.si_errno = 0;
2444 info.si_code = TARGET_TRAP_BRKPT;
2445 queue_signal(env, info.si_signo, &info);
2446 }
2447 }
2448 break;
2449 default:
2450 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
2451 trapnr);
2452 cpu_dump_state(env, stderr, fprintf, 0);
2453 abort();
2454 }
2455 process_pending_signals(env);
2456 }
2457 }
2458 #endif /* TARGET_M68K */
2459
2460 #ifdef TARGET_ALPHA
2461 static void do_store_exclusive(CPUAlphaState *env, int reg, int quad)
2462 {
2463 target_ulong addr, val, tmp;
2464 target_siginfo_t info;
2465 int ret = 0;
2466
2467 addr = env->lock_addr;
2468 tmp = env->lock_st_addr;
2469 env->lock_addr = -1;
2470 env->lock_st_addr = 0;
2471
2472 start_exclusive();
2473 mmap_lock();
2474
2475 if (addr == tmp) {
2476 if (quad ? get_user_s64(val, addr) : get_user_s32(val, addr)) {
2477 goto do_sigsegv;
2478 }
2479
2480 if (val == env->lock_value) {
2481 tmp = env->ir[reg];
2482 if (quad ? put_user_u64(tmp, addr) : put_user_u32(tmp, addr)) {
2483 goto do_sigsegv;
2484 }
2485 ret = 1;
2486 }
2487 }
2488 env->ir[reg] = ret;
2489 env->pc += 4;
2490
2491 mmap_unlock();
2492 end_exclusive();
2493 return;
2494
2495 do_sigsegv:
2496 mmap_unlock();
2497 end_exclusive();
2498
2499 info.si_signo = TARGET_SIGSEGV;
2500 info.si_errno = 0;
2501 info.si_code = TARGET_SEGV_MAPERR;
2502 info._sifields._sigfault._addr = addr;
2503 queue_signal(env, TARGET_SIGSEGV, &info);
2504 }
2505
2506 void cpu_loop (CPUState *env)
2507 {
2508 int trapnr;
2509 target_siginfo_t info;
2510 abi_long sysret;
2511
2512 while (1) {
2513 trapnr = cpu_alpha_exec (env);
2514
2515 /* All of the traps imply a transition through PALcode, which
2516 implies an REI instruction has been executed. Which means
2517 that the intr_flag should be cleared. */
2518 env->intr_flag = 0;
2519
2520 switch (trapnr) {
2521 case EXCP_RESET:
2522 fprintf(stderr, "Reset requested. Exit\n");
2523 exit(1);
2524 break;
2525 case EXCP_MCHK:
2526 fprintf(stderr, "Machine check exception. Exit\n");
2527 exit(1);
2528 break;
2529 case EXCP_ARITH:
2530 env->lock_addr = -1;
2531 info.si_signo = TARGET_SIGFPE;
2532 info.si_errno = 0;
2533 info.si_code = TARGET_FPE_FLTINV;
2534 info._sifields._sigfault._addr = env->pc;
2535 queue_signal(env, info.si_signo, &info);
2536 break;
2537 case EXCP_HW_INTERRUPT:
2538 fprintf(stderr, "External interrupt. Exit\n");
2539 exit(1);
2540 break;
2541 case EXCP_DFAULT:
2542 env->lock_addr = -1;
2543 info.si_signo = TARGET_SIGSEGV;
2544 info.si_errno = 0;
2545 info.si_code = (page_get_flags(env->ipr[IPR_EXC_ADDR]) & PAGE_VALID
2546 ? TARGET_SEGV_ACCERR : TARGET_SEGV_MAPERR);
2547 info._sifields._sigfault._addr = env->ipr[IPR_EXC_ADDR];
2548 queue_signal(env, info.si_signo, &info);
2549 break;
2550 case EXCP_DTB_MISS_PAL:
2551 fprintf(stderr, "MMU data TLB miss in PALcode\n");
2552 exit(1);
2553 break;
2554 case EXCP_ITB_MISS:
2555 fprintf(stderr, "MMU instruction TLB miss\n");
2556 exit(1);
2557 break;
2558 case EXCP_ITB_ACV:
2559 fprintf(stderr, "MMU instruction access violation\n");
2560 exit(1);
2561 break;
2562 case EXCP_DTB_MISS_NATIVE:
2563 fprintf(stderr, "MMU data TLB miss\n");
2564 exit(1);
2565 break;
2566 case EXCP_UNALIGN:
2567 env->lock_addr = -1;
2568 info.si_signo = TARGET_SIGBUS;
2569 info.si_errno = 0;
2570 info.si_code = TARGET_BUS_ADRALN;
2571 info._sifields._sigfault._addr = env->ipr[IPR_EXC_ADDR];
2572 queue_signal(env, info.si_signo, &info);
2573 break;
2574 case EXCP_OPCDEC:
2575 do_sigill:
2576 env->lock_addr = -1;
2577 info.si_signo = TARGET_SIGILL;
2578 info.si_errno = 0;
2579 info.si_code = TARGET_ILL_ILLOPC;
2580 info._sifields._sigfault._addr = env->pc;
2581 queue_signal(env, info.si_signo, &info);
2582 break;
2583 case EXCP_FEN:
2584 /* No-op. Linux simply re-enables the FPU. */
2585 break;
2586 case EXCP_CALL_PAL ... (EXCP_CALL_PALP - 1):
2587 env->lock_addr = -1;
2588 switch ((trapnr >> 6) | 0x80) {
2589 case 0x80:
2590 /* BPT */
2591 info.si_signo = TARGET_SIGTRAP;
2592 info.si_errno = 0;
2593 info.si_code = TARGET_TRAP_BRKPT;
2594 info._sifields._sigfault._addr = env->pc;
2595 queue_signal(env, info.si_signo, &info);
2596 break;
2597 case 0x81:
2598 /* BUGCHK */
2599 info.si_signo = TARGET_SIGTRAP;
2600 info.si_errno = 0;
2601 info.si_code = 0;
2602 info._sifields._sigfault._addr = env->pc;
2603 queue_signal(env, info.si_signo, &info);
2604 break;
2605 case 0x83:
2606 /* CALLSYS */
2607 trapnr = env->ir[IR_V0];
2608 sysret = do_syscall(env, trapnr,
2609 env->ir[IR_A0], env->ir[IR_A1],
2610 env->ir[IR_A2], env->ir[IR_A3],
2611 env->ir[IR_A4], env->ir[IR_A5]);
2612 if (trapnr == TARGET_NR_sigreturn
2613 || trapnr == TARGET_NR_rt_sigreturn) {
2614 break;
2615 }
2616 /* Syscall writes 0 to V0 to bypass error check, similar
2617 to how this is handled internal to Linux kernel. */
2618 if (env->ir[IR_V0] == 0) {
2619 env->ir[IR_V0] = sysret;
2620 } else {
2621 env->ir[IR_V0] = (sysret < 0 ? -sysret : sysret);
2622 env->ir[IR_A3] = (sysret < 0);
2623 }
2624 break;
2625 case 0x86:
2626 /* IMB */
2627 /* ??? We can probably elide the code using page_unprotect
2628 that is checking for self-modifying code. Instead we
2629 could simply call tb_flush here. Until we work out the
2630 changes required to turn off the extra write protection,
2631 this can be a no-op. */
2632 break;
2633 case 0x9E:
2634 /* RDUNIQUE */
2635 /* Handled in the translator for usermode. */
2636 abort();
2637 case 0x9F:
2638 /* WRUNIQUE */
2639 /* Handled in the translator for usermode. */
2640 abort();
2641 case 0xAA:
2642 /* GENTRAP */
2643 info.si_signo = TARGET_SIGFPE;
2644 switch (env->ir[IR_A0]) {
2645 case TARGET_GEN_INTOVF:
2646 info.si_code = TARGET_FPE_INTOVF;
2647 break;
2648 case TARGET_GEN_INTDIV:
2649 info.si_code = TARGET_FPE_INTDIV;
2650 break;
2651 case TARGET_GEN_FLTOVF:
2652 info.si_code = TARGET_FPE_FLTOVF;
2653 break;
2654 case TARGET_GEN_FLTUND:
2655 info.si_code = TARGET_FPE_FLTUND;
2656 break;
2657 case TARGET_GEN_FLTINV:
2658 info.si_code = TARGET_FPE_FLTINV;
2659 break;
2660 case TARGET_GEN_FLTINE:
2661 info.si_code = TARGET_FPE_FLTRES;
2662 break;
2663 case TARGET_GEN_ROPRAND:
2664 info.si_code = 0;
2665 break;
2666 default:
2667 info.si_signo = TARGET_SIGTRAP;
2668 info.si_code = 0;
2669 break;
2670 }
2671 info.si_errno = 0;
2672 info._sifields._sigfault._addr = env->pc;
2673 queue_signal(env, info.si_signo, &info);
2674 break;
2675 default:
2676 goto do_sigill;
2677 }
2678 break;
2679 case EXCP_CALL_PALP ... (EXCP_CALL_PALE - 1):
2680 goto do_sigill;
2681 case EXCP_DEBUG:
2682 info.si_signo = gdb_handlesig (env, TARGET_SIGTRAP);
2683 if (info.si_signo) {
2684 env->lock_addr = -1;
2685 info.si_errno = 0;
2686 info.si_code = TARGET_TRAP_BRKPT;
2687 queue_signal(env, info.si_signo, &info);
2688 }
2689 break;
2690 case EXCP_STL_C:
2691 case EXCP_STQ_C:
2692 do_store_exclusive(env, env->error_code, trapnr - EXCP_STL_C);
2693 break;
2694 default:
2695 printf ("Unhandled trap: 0x%x\n", trapnr);
2696 cpu_dump_state(env, stderr, fprintf, 0);
2697 exit (1);
2698 }
2699 process_pending_signals (env);
2700 }
2701 }
2702 #endif /* TARGET_ALPHA */
2703
2704 static void version(void)
2705 {
2706 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION QEMU_PKGVERSION
2707 ", Copyright (c) 2003-2008 Fabrice Bellard\n");
2708 }
2709
2710 static void usage(void)
2711 {
2712 version();
2713 printf("usage: qemu-" TARGET_ARCH " [options] program [arguments...]\n"
2714 "Linux CPU emulator (compiled for %s emulation)\n"
2715 "\n"
2716 "Standard options:\n"
2717 "-h print this help\n"
2718 "-version display version information and exit\n"
2719 "-g port wait gdb connection to port\n"
2720 "-L path set the elf interpreter prefix (default=%s)\n"
2721 "-s size set the stack size in bytes (default=%ld)\n"
2722 "-cpu model select CPU (-cpu ? for list)\n"
2723 "-drop-ld-preload drop LD_PRELOAD for target process\n"
2724 "-E var=value sets/modifies targets environment variable(s)\n"
2725 "-U var unsets targets environment variable(s)\n"
2726 "-0 argv0 forces target process argv[0] to be argv0\n"
2727 #if defined(CONFIG_USE_GUEST_BASE)
2728 "-B address set guest_base address to address\n"
2729 "-R size reserve size bytes for guest virtual address space\n"
2730 #endif
2731 "\n"
2732 "Debug options:\n"
2733 "-d options activate log (logfile=%s)\n"
2734 "-p pagesize set the host page size to 'pagesize'\n"
2735 "-singlestep always run in singlestep mode\n"
2736 "-strace log system calls\n"
2737 "\n"
2738 "Environment variables:\n"
2739 "QEMU_STRACE Print system calls and arguments similar to the\n"
2740 " 'strace' program. Enable by setting to any value.\n"
2741 "You can use -E and -U options to set/unset environment variables\n"
2742 "for target process. It is possible to provide several variables\n"
2743 "by repeating the option. For example:\n"
2744 " -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n"
2745 "Note that if you provide several changes to single variable\n"
2746 "last change will stay in effect.\n"
2747 ,
2748 TARGET_ARCH,
2749 interp_prefix,
2750 guest_stack_size,
2751 DEBUG_LOGFILE);
2752 exit(1);
2753 }
2754
2755 THREAD CPUState *thread_env;
2756
2757 void task_settid(TaskState *ts)
2758 {
2759 if (ts->ts_tid == 0) {
2760 #ifdef CONFIG_USE_NPTL
2761 ts->ts_tid = (pid_t)syscall(SYS_gettid);
2762 #else
2763 /* when no threads are used, tid becomes pid */
2764 ts->ts_tid = getpid();
2765 #endif
2766 }
2767 }
2768
2769 void stop_all_tasks(void)
2770 {
2771 /*
2772 * We trust that when using NPTL, start_exclusive()
2773 * handles thread stopping correctly.
2774 */
2775 start_exclusive();
2776 }
2777
2778 /* Assumes contents are already zeroed. */
2779 void init_task_state(TaskState *ts)
2780 {
2781 int i;
2782
2783 ts->used = 1;
2784 ts->first_free = ts->sigqueue_table;
2785 for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) {
2786 ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1];
2787 }
2788 ts->sigqueue_table[i].next = NULL;
2789 }
2790
2791 int main(int argc, char **argv, char **envp)
2792 {
2793 const char *filename;
2794 const char *cpu_model;
2795 struct target_pt_regs regs1, *regs = &regs1;
2796 struct image_info info1, *info = &info1;
2797 struct linux_binprm bprm;
2798 TaskState *ts;
2799 CPUState *env;
2800 int optind;
2801 const char *r;
2802 int gdbstub_port = 0;
2803 char **target_environ, **wrk;
2804 char **target_argv;
2805 int target_argc;
2806 envlist_t *envlist = NULL;
2807 const char *argv0 = NULL;
2808 int i;
2809 int ret;
2810
2811 if (argc <= 1)
2812 usage();
2813
2814 qemu_cache_utils_init(envp);
2815
2816 /* init debug */
2817 cpu_set_log_filename(DEBUG_LOGFILE);
2818
2819 if ((envlist = envlist_create()) == NULL) {
2820 (void) fprintf(stderr, "Unable to allocate envlist\n");
2821 exit(1);
2822 }
2823
2824 /* add current environment into the list */
2825 for (wrk = environ; *wrk != NULL; wrk++) {
2826 (void) envlist_setenv(envlist, *wrk);
2827 }
2828
2829 /* Read the stack limit from the kernel. If it's "unlimited",
2830 then we can do little else besides use the default. */
2831 {
2832 struct rlimit lim;
2833 if (getrlimit(RLIMIT_STACK, &lim) == 0
2834 && lim.rlim_cur != RLIM_INFINITY
2835 && lim.rlim_cur == (target_long)lim.rlim_cur) {
2836 guest_stack_size = lim.rlim_cur;
2837 }
2838 }
2839
2840 cpu_model = NULL;
2841 #if defined(cpudef_setup)
2842 cpudef_setup(); /* parse cpu definitions in target config file (TBD) */
2843 #endif
2844
2845 optind = 1;
2846 for(;;) {
2847 if (optind >= argc)
2848 break;
2849 r = argv[optind];
2850 if (r[0] != '-')
2851 break;
2852 optind++;
2853 r++;
2854 if (!strcmp(r, "-")) {
2855 break;
2856 } else if (!strcmp(r, "d")) {
2857 int mask;
2858 const CPULogItem *item;
2859
2860 if (optind >= argc)
2861 break;
2862
2863 r = argv[optind++];
2864 mask = cpu_str_to_log_mask(r);
2865 if (!mask) {
2866 printf("Log items (comma separated):\n");
2867 for(item = cpu_log_items; item->mask != 0; item++) {
2868 printf("%-10s %s\n", item->name, item->help);
2869 }
2870 exit(1);
2871 }
2872 cpu_set_log(mask);
2873 } else if (!strcmp(r, "E")) {
2874 r = argv[optind++];
2875 if (envlist_setenv(envlist, r) != 0)
2876 usage();
2877 } else if (!strcmp(r, "ignore-environment")) {
2878 envlist_free(envlist);
2879 if ((envlist = envlist_create()) == NULL) {
2880 (void) fprintf(stderr, "Unable to allocate envlist\n");
2881 exit(1);
2882 }
2883 } else if (!strcmp(r, "U")) {
2884 r = argv[optind++];
2885 if (envlist_unsetenv(envlist, r) != 0)
2886 usage();
2887 } else if (!strcmp(r, "0")) {
2888 r = argv[optind++];
2889 argv0 = r;
2890 } else if (!strcmp(r, "s")) {
2891 if (optind >= argc)
2892 break;
2893 r = argv[optind++];
2894 guest_stack_size = strtoul(r, (char **)&r, 0);
2895 if (guest_stack_size == 0)
2896 usage();
2897 if (*r == 'M')
2898 guest_stack_size *= 1024 * 1024;
2899 else if (*r == 'k' || *r == 'K')
2900 guest_stack_size *= 1024;
2901 } else if (!strcmp(r, "L")) {
2902 interp_prefix = argv[optind++];
2903 } else if (!strcmp(r, "p")) {
2904 if (optind >= argc)
2905 break;
2906 qemu_host_page_size = atoi(argv[optind++]);
2907 if (qemu_host_page_size == 0 ||
2908 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
2909 fprintf(stderr, "page size must be a power of two\n");
2910 exit(1);
2911 }
2912 } else if (!strcmp(r, "g")) {
2913 if (optind >= argc)
2914 break;
2915 gdbstub_port = atoi(argv[optind++]);
2916 } else if (!strcmp(r, "r")) {
2917 qemu_uname_release = argv[optind++];
2918 } else if (!strcmp(r, "cpu")) {
2919 cpu_model = argv[optind++];
2920 if (cpu_model == NULL || strcmp(cpu_model, "?") == 0) {
2921 /* XXX: implement xxx_cpu_list for targets that still miss it */
2922 #if defined(cpu_list_id)
2923 cpu_list_id(stdout, &fprintf, "");
2924 #elif defined(cpu_list)
2925 cpu_list(stdout, &fprintf); /* deprecated */
2926 #endif
2927 exit(1);
2928 }
2929 #if defined(CONFIG_USE_GUEST_BASE)
2930 } else if (!strcmp(r, "B")) {
2931 guest_base = strtol(argv[optind++], NULL, 0);
2932 have_guest_base = 1;
2933 } else if (!strcmp(r, "R")) {
2934 char *p;
2935 int shift = 0;
2936 reserved_va = strtoul(argv[optind++], &p, 0);
2937 switch (*p) {
2938 case 'k':
2939 case 'K':
2940 shift = 10;
2941 break;
2942 case 'M':
2943 shift = 20;
2944 break;
2945 case 'G':
2946 shift = 30;
2947 break;
2948 }
2949 if (shift) {
2950 unsigned long unshifted = reserved_va;
2951 p++;
2952 reserved_va <<= shift;
2953 if (((reserved_va >> shift) != unshifted)
2954 #if HOST_LONG_BITS > TARGET_VIRT_ADDR_SPACE_BITS
2955 || (reserved_va > (1ul << TARGET_VIRT_ADDR_SPACE_BITS))
2956 #endif
2957 ) {
2958 fprintf(stderr, "Reserved virtual address too big\n");
2959 exit(1);
2960 }
2961 }
2962 if (*p) {
2963 fprintf(stderr, "Unrecognised -R size suffix '%s'\n", p);
2964 exit(1);
2965 }
2966 #endif
2967 } else if (!strcmp(r, "drop-ld-preload")) {
2968 (void) envlist_unsetenv(envlist, "LD_PRELOAD");
2969 } else if (!strcmp(r, "singlestep")) {
2970 singlestep = 1;
2971 } else if (!strcmp(r, "strace")) {
2972 do_strace = 1;
2973 } else if (!strcmp(r, "version")) {
2974 version();
2975 exit(0);
2976 } else {
2977 usage();
2978 }
2979 }
2980 if (optind >= argc)
2981 usage();
2982 filename = argv[optind];
2983 exec_path = argv[optind];
2984
2985 /* Zero out regs */
2986 memset(regs, 0, sizeof(struct target_pt_regs));
2987
2988 /* Zero out image_info */
2989 memset(info, 0, sizeof(struct image_info));
2990
2991 memset(&bprm, 0, sizeof (bprm));
2992
2993 /* Scan interp_prefix dir for replacement files. */
2994 init_paths(interp_prefix);
2995
2996 if (cpu_model == NULL) {
2997 #if defined(TARGET_I386)
2998 #ifdef TARGET_X86_64
2999 cpu_model = "qemu64";
3000 #else
3001 cpu_model = "qemu32";
3002 #endif
3003 #elif defined(TARGET_ARM)
3004 cpu_model = "any";
3005 #elif defined(TARGET_UNICORE32)
3006 cpu_model = "any";
3007 #elif defined(TARGET_M68K)
3008 cpu_model = "any";
3009 #elif defined(TARGET_SPARC)
3010 #ifdef TARGET_SPARC64
3011 cpu_model = "TI UltraSparc II";
3012 #else
3013 cpu_model = "Fujitsu MB86904";
3014 #endif
3015 #elif defined(TARGET_MIPS)
3016 #if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64)
3017 cpu_model = "20Kc";
3018 #else
3019 cpu_model = "24Kf";
3020 #endif
3021 #elif defined(TARGET_PPC)
3022 #ifdef TARGET_PPC64
3023 cpu_model = "970fx";
3024 #else
3025 cpu_model = "750";
3026 #endif
3027 #else
3028 cpu_model = "any";
3029 #endif
3030 }
3031 cpu_exec_init_all(0);
3032 /* NOTE: we need to init the CPU at this stage to get
3033 qemu_host_page_size */
3034 env = cpu_init(cpu_model);
3035 if (!env) {
3036 fprintf(stderr, "Unable to find CPU definition\n");
3037 exit(1);
3038 }
3039 #if defined(TARGET_I386) || defined(TARGET_SPARC) || defined(TARGET_PPC)
3040 cpu_reset(env);
3041 #endif
3042
3043 thread_env = env;
3044
3045 if (getenv("QEMU_STRACE")) {
3046 do_strace = 1;
3047 }
3048
3049 target_environ = envlist_to_environ(envlist, NULL);
3050 envlist_free(envlist);
3051
3052 #if defined(CONFIG_USE_GUEST_BASE)
3053 /*
3054 * Now that page sizes are configured in cpu_init() we can do
3055 * proper page alignment for guest_base.
3056 */
3057 guest_base = HOST_PAGE_ALIGN(guest_base);
3058
3059 if (reserved_va) {
3060 void *p;
3061 int flags;
3062
3063 flags = MAP_ANONYMOUS | MAP_PRIVATE | MAP_NORESERVE;
3064 if (have_guest_base) {
3065 flags |= MAP_FIXED;
3066 }
3067 p = mmap((void *)guest_base, reserved_va, PROT_NONE, flags, -1, 0);
3068 if (p == MAP_FAILED) {
3069 fprintf(stderr, "Unable to reserve guest address space\n");
3070 exit(1);
3071 }
3072 guest_base = (unsigned long)p;
3073 /* Make sure the address is properly aligned. */
3074 if (guest_base & ~qemu_host_page_mask) {
3075 munmap(p, reserved_va);
3076 p = mmap((void *)guest_base, reserved_va + qemu_host_page_size,
3077 PROT_NONE, flags, -1, 0);
3078 if (p == MAP_FAILED) {
3079 fprintf(stderr, "Unable to reserve guest address space\n");
3080 exit(1);
3081 }
3082 guest_base = HOST_PAGE_ALIGN((unsigned long)p);
3083 }
3084 qemu_log("Reserved 0x%lx bytes of guest address space\n", reserved_va);
3085 }
3086 #endif /* CONFIG_USE_GUEST_BASE */
3087
3088 /*
3089 * Read in mmap_min_addr kernel parameter. This value is used
3090 * When loading the ELF image to determine whether guest_base
3091 * is needed. It is also used in mmap_find_vma.
3092 */
3093 {
3094 FILE *fp;
3095
3096 if ((fp = fopen("/proc/sys/vm/mmap_min_addr", "r")) != NULL) {
3097 unsigned long tmp;
3098 if (fscanf(fp, "%lu", &tmp) == 1) {
3099 mmap_min_addr = tmp;
3100 qemu_log("host mmap_min_addr=0x%lx\n", mmap_min_addr);
3101 }
3102 fclose(fp);
3103 }
3104 }
3105
3106 /*
3107 * Prepare copy of argv vector for target.
3108 */
3109 target_argc = argc - optind;
3110 target_argv = calloc(target_argc + 1, sizeof (char *));
3111 if (target_argv == NULL) {
3112 (void) fprintf(stderr, "Unable to allocate memory for target_argv\n");
3113 exit(1);
3114 }
3115
3116 /*
3117 * If argv0 is specified (using '-0' switch) we replace
3118 * argv[0] pointer with the given one.
3119 */
3120 i = 0;
3121 if (argv0 != NULL) {
3122 target_argv[i++] = strdup(argv0);
3123 }
3124 for (; i < target_argc; i++) {
3125 target_argv[i] = strdup(argv[optind + i]);
3126 }
3127 target_argv[target_argc] = NULL;
3128
3129 ts = qemu_mallocz (sizeof(TaskState));
3130 init_task_state(ts);
3131 /* build Task State */
3132 ts->info = info;
3133 ts->bprm = &bprm;
3134 env->opaque = ts;
3135 task_settid(ts);
3136
3137 ret = loader_exec(filename, target_argv, target_environ, regs,
3138 info, &bprm);
3139 if (ret != 0) {
3140 printf("Error %d while loading %s\n", ret, filename);
3141 _exit(1);
3142 }
3143
3144 for (i = 0; i < target_argc; i++) {
3145 free(target_argv[i]);
3146 }
3147 free(target_argv);
3148
3149 for (wrk = target_environ; *wrk; wrk++) {
3150 free(*wrk);
3151 }
3152
3153 free(target_environ);
3154
3155 if (qemu_log_enabled()) {
3156 #if defined(CONFIG_USE_GUEST_BASE)
3157 qemu_log("guest_base 0x%lx\n", guest_base);
3158 #endif
3159 log_page_dump();
3160
3161 qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk);
3162 qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code);
3163 qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n",
3164 info->start_code);
3165 qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n",
3166 info->start_data);
3167 qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data);
3168 qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n",
3169 info->start_stack);
3170 qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk);
3171 qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry);
3172 }
3173
3174 target_set_brk(info->brk);
3175 syscall_init();
3176 signal_init();
3177
3178 #if defined(CONFIG_USE_GUEST_BASE)
3179 /* Now that we've loaded the binary, GUEST_BASE is fixed. Delay
3180 generating the prologue until now so that the prologue can take
3181 the real value of GUEST_BASE into account. */
3182 tcg_prologue_init(&tcg_ctx);
3183 #endif
3184
3185 #if defined(TARGET_I386)
3186 cpu_x86_set_cpl(env, 3);
3187
3188 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
3189 env->hflags |= HF_PE_MASK;
3190 if (env->cpuid_features & CPUID_SSE) {
3191 env->cr[4] |= CR4_OSFXSR_MASK;
3192 env->hflags |= HF_OSFXSR_MASK;
3193 }
3194 #ifndef TARGET_ABI32
3195 /* enable 64 bit mode if possible */
3196 if (!(env->cpuid_ext2_features & CPUID_EXT2_LM)) {
3197 fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n");
3198 exit(1);
3199 }
3200 env->cr[4] |= CR4_PAE_MASK;
3201 env->efer |= MSR_EFER_LMA | MSR_EFER_LME;
3202 env->hflags |= HF_LMA_MASK;
3203 #endif
3204
3205 /* flags setup : we activate the IRQs by default as in user mode */
3206 env->eflags |= IF_MASK;
3207
3208 /* linux register setup */
3209 #ifndef TARGET_ABI32
3210 env->regs[R_EAX] = regs->rax;
3211 env->regs[R_EBX] = regs->rbx;
3212 env->regs[R_ECX] = regs->rcx;
3213 env->regs[R_EDX] = regs->rdx;
3214 env->regs[R_ESI] = regs->rsi;
3215 env->regs[R_EDI] = regs->rdi;
3216 env->regs[R_EBP] = regs->rbp;
3217 env->regs[R_ESP] = regs->rsp;
3218 env->eip = regs->rip;
3219 #else
3220 env->regs[R_EAX] = regs->eax;
3221 env->regs[R_EBX] = regs->ebx;
3222 env->regs[R_ECX] = regs->ecx;
3223 env->regs[R_EDX] = regs->edx;
3224 env->regs[R_ESI] = regs->esi;
3225 env->regs[R_EDI] = regs->edi;
3226 env->regs[R_EBP] = regs->ebp;
3227 env->regs[R_ESP] = regs->esp;
3228 env->eip = regs->eip;
3229 #endif
3230
3231 /* linux interrupt setup */
3232 #ifndef TARGET_ABI32
3233 env->idt.limit = 511;
3234 #else
3235 env->idt.limit = 255;
3236 #endif
3237 env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1),
3238 PROT_READ|PROT_WRITE,
3239 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3240 idt_table = g2h(env->idt.base);
3241 set_idt(0, 0);
3242 set_idt(1, 0);
3243 set_idt(2, 0);
3244 set_idt(3, 3);
3245 set_idt(4, 3);
3246 set_idt(5, 0);
3247 set_idt(6, 0);
3248 set_idt(7, 0);
3249 set_idt(8, 0);
3250 set_idt(9, 0);
3251 set_idt(10, 0);
3252 set_idt(11, 0);
3253 set_idt(12, 0);
3254 set_idt(13, 0);
3255 set_idt(14, 0);
3256 set_idt(15, 0);
3257 set_idt(16, 0);
3258 set_idt(17, 0);
3259 set_idt(18, 0);
3260 set_idt(19, 0);
3261 set_idt(0x80, 3);
3262
3263 /* linux segment setup */
3264 {
3265 uint64_t *gdt_table;
3266 env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES,
3267 PROT_READ|PROT_WRITE,
3268 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3269 env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1;
3270 gdt_table = g2h(env->gdt.base);
3271 #ifdef TARGET_ABI32
3272 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
3273 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3274 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
3275 #else
3276 /* 64 bit code segment */
3277 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
3278 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3279 DESC_L_MASK |
3280 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
3281 #endif
3282 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
3283 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3284 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
3285 }
3286 cpu_x86_load_seg(env, R_CS, __USER_CS);
3287 cpu_x86_load_seg(env, R_SS, __USER_DS);
3288 #ifdef TARGET_ABI32
3289 cpu_x86_load_seg(env, R_DS, __USER_DS);
3290 cpu_x86_load_seg(env, R_ES, __USER_DS);
3291 cpu_x86_load_seg(env, R_FS, __USER_DS);
3292 cpu_x86_load_seg(env, R_GS, __USER_DS);
3293 /* This hack makes Wine work... */
3294 env->segs[R_FS].selector = 0;
3295 #else
3296 cpu_x86_load_seg(env, R_DS, 0);
3297 cpu_x86_load_seg(env, R_ES, 0);
3298 cpu_x86_load_seg(env, R_FS, 0);
3299 cpu_x86_load_seg(env, R_GS, 0);
3300 #endif
3301 #elif defined(TARGET_ARM)
3302 {
3303 int i;
3304 cpsr_write(env, regs->uregs[16], 0xffffffff);
3305 for(i = 0; i < 16; i++) {
3306 env->regs[i] = regs->uregs[i];
3307 }
3308 }
3309 #elif defined(TARGET_UNICORE32)
3310 {
3311 int i;
3312 cpu_asr_write(env, regs->uregs[32], 0xffffffff);
3313 for (i = 0; i < 32; i++) {
3314 env->regs[i] = regs->uregs[i];
3315 }
3316 }
3317 #elif defined(TARGET_SPARC)
3318 {
3319 int i;
3320 env->pc = regs->pc;
3321 env->npc = regs->npc;
3322 env->y = regs->y;
3323 for(i = 0; i < 8; i++)
3324 env->gregs[i] = regs->u_regs[i];
3325 for(i = 0; i < 8; i++)
3326 env->regwptr[i] = regs->u_regs[i + 8];
3327 }
3328 #elif defined(TARGET_PPC)
3329 {
3330 int i;
3331
3332 #if defined(TARGET_PPC64)
3333 #if defined(TARGET_ABI32)
3334 env->msr &= ~((target_ulong)1 << MSR_SF);
3335 #else
3336 env->msr |= (target_ulong)1 << MSR_SF;
3337 #endif
3338 #endif
3339 env->nip = regs->nip;
3340 for(i = 0; i < 32; i++) {
3341 env->gpr[i] = regs->gpr[i];
3342 }
3343 }
3344 #elif defined(TARGET_M68K)
3345 {
3346 env->pc = regs->pc;
3347 env->dregs[0] = regs->d0;
3348 env->dregs[1] = regs->d1;
3349 env->dregs[2] = regs->d2;
3350 env->dregs[3] = regs->d3;
3351 env->dregs[4] = regs->d4;
3352 env->dregs[5] = regs->d5;
3353 env->dregs[6] = regs->d6;
3354 env->dregs[7] = regs->d7;
3355 env->aregs[0] = regs->a0;
3356 env->aregs[1] = regs->a1;
3357 env->aregs[2] = regs->a2;
3358 env->aregs[3] = regs->a3;
3359 env->aregs[4] = regs->a4;
3360 env->aregs[5] = regs->a5;
3361 env->aregs[6] = regs->a6;
3362 env->aregs[7] = regs->usp;
3363 env->sr = regs->sr;
3364 ts->sim_syscalls = 1;
3365 }
3366 #elif defined(TARGET_MICROBLAZE)
3367 {
3368 env->regs[0] = regs->r0;
3369 env->regs[1] = regs->r1;
3370 env->regs[2] = regs->r2;
3371 env->regs[3] = regs->r3;
3372 env->regs[4] = regs->r4;
3373 env->regs[5] = regs->r5;
3374 env->regs[6] = regs->r6;
3375 env->regs[7] = regs->r7;
3376 env->regs[8] = regs->r8;
3377 env->regs[9] = regs->r9;
3378 env->regs[10] = regs->r10;
3379 env->regs[11] = regs->r11;
3380 env->regs[12] = regs->r12;
3381 env->regs[13] = regs->r13;
3382 env->regs[14] = regs->r14;
3383 env->regs[15] = regs->r15;
3384 env->regs[16] = regs->r16;
3385 env->regs[17] = regs->r17;
3386 env->regs[18] = regs->r18;
3387 env->regs[19] = regs->r19;
3388 env->regs[20] = regs->r20;
3389 env->regs[21] = regs->r21;
3390 env->regs[22] = regs->r22;
3391 env->regs[23] = regs->r23;
3392 env->regs[24] = regs->r24;
3393 env->regs[25] = regs->r25;
3394 env->regs[26] = regs->r26;
3395 env->regs[27] = regs->r27;
3396 env->regs[28] = regs->r28;
3397 env->regs[29] = regs->r29;
3398 env->regs[30] = regs->r30;
3399 env->regs[31] = regs->r31;
3400 env->sregs[SR_PC] = regs->pc;
3401 }
3402 #elif defined(TARGET_MIPS)
3403 {
3404 int i;
3405
3406 for(i = 0; i < 32; i++) {
3407 env->active_tc.gpr[i] = regs->regs[i];
3408 }
3409 env->active_tc.PC = regs->cp0_epc & ~(target_ulong)1;
3410 if (regs->cp0_epc & 1) {
3411 env->hflags |= MIPS_HFLAG_M16;
3412 }
3413 }
3414 #elif defined(TARGET_SH4)
3415 {
3416 int i;
3417
3418 for(i = 0; i < 16; i++) {
3419 env->gregs[i] = regs->regs[i];
3420 }
3421 env->pc = regs->pc;
3422 }
3423 #elif defined(TARGET_ALPHA)
3424 {
3425 int i;
3426
3427 for(i = 0; i < 28; i++) {
3428 env->ir[i] = ((abi_ulong *)regs)[i];
3429 }
3430 env->ir[IR_SP] = regs->usp;
3431 env->pc = regs->pc;
3432 }
3433 #elif defined(TARGET_CRIS)
3434 {
3435 env->regs[0] = regs->r0;
3436 env->regs[1] = regs->r1;
3437 env->regs[2] = regs->r2;
3438 env->regs[3] = regs->r3;
3439 env->regs[4] = regs->r4;
3440 env->regs[5] = regs->r5;
3441 env->regs[6] = regs->r6;
3442 env->regs[7] = regs->r7;
3443 env->regs[8] = regs->r8;
3444 env->regs[9] = regs->r9;
3445 env->regs[10] = regs->r10;
3446 env->regs[11] = regs->r11;
3447 env->regs[12] = regs->r12;
3448 env->regs[13] = regs->r13;
3449 env->regs[14] = info->start_stack;
3450 env->regs[15] = regs->acr;
3451 env->pc = regs->erp;
3452 }
3453 #else
3454 #error unsupported target CPU
3455 #endif
3456
3457 #if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
3458 ts->stack_base = info->start_stack;
3459 ts->heap_base = info->brk;
3460 /* This will be filled in on the first SYS_HEAPINFO call. */
3461 ts->heap_limit = 0;
3462 #endif
3463
3464 if (gdbstub_port) {
3465 gdbserver_start (gdbstub_port);
3466 gdb_handlesig(env, 0);
3467 }
3468 cpu_loop(env);
3469 /* never exits */
3470 return 0;
3471 }
QEmu