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Merge remote-tracking branch 'kraxel/usb.14.pull' into staging
[qemu.git] / linux-user / main.c
blob088def3cfdcb760038795ce0dae90d43b294f461
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 instruction */
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 /* Handle a jump to the kernel code page. */
459 static int
460 do_kernel_trap(CPUARMState *env)
461 {
462 uint32_t addr;
463 uint32_t cpsr;
464 uint32_t val;
465
466 switch (env->regs[15]) {
467 case 0xffff0fa0: /* __kernel_memory_barrier */
468 /* ??? No-op. Will need to do better for SMP. */
469 break;
470 case 0xffff0fc0: /* __kernel_cmpxchg */
471 /* XXX: This only works between threads, not between processes.
472 It's probably possible to implement this with native host
473 operations. However things like ldrex/strex are much harder so
474 there's not much point trying. */
475 start_exclusive();
476 cpsr = cpsr_read(env);
477 addr = env->regs[2];
478 /* FIXME: This should SEGV if the access fails. */
479 if (get_user_u32(val, addr))
480 val = ~env->regs[0];
481 if (val == env->regs[0]) {
482 val = env->regs[1];
483 /* FIXME: Check for segfaults. */
484 put_user_u32(val, addr);
485 env->regs[0] = 0;
486 cpsr |= CPSR_C;
487 } else {
488 env->regs[0] = -1;
489 cpsr &= ~CPSR_C;
490 }
491 cpsr_write(env, cpsr, CPSR_C);
492 end_exclusive();
493 break;
494 case 0xffff0fe0: /* __kernel_get_tls */
495 env->regs[0] = env->cp15.c13_tls2;
496 break;
497 default:
498 return 1;
499 }
500 /* Jump back to the caller. */
501 addr = env->regs[14];
502 if (addr & 1) {
503 env->thumb = 1;
504 addr &= ~1;
505 }
506 env->regs[15] = addr;
507
508 return 0;
509 }
510
511 static int do_strex(CPUARMState *env)
512 {
513 uint32_t val;
514 int size;
515 int rc = 1;
516 int segv = 0;
517 uint32_t addr;
518 start_exclusive();
519 addr = env->exclusive_addr;
520 if (addr != env->exclusive_test) {
521 goto fail;
522 }
523 size = env->exclusive_info & 0xf;
524 switch (size) {
525 case 0:
526 segv = get_user_u8(val, addr);
527 break;
528 case 1:
529 segv = get_user_u16(val, addr);
530 break;
531 case 2:
532 case 3:
533 segv = get_user_u32(val, addr);
534 break;
535 default:
536 abort();
537 }
538 if (segv) {
539 env->cp15.c6_data = addr;
540 goto done;
541 }
542 if (val != env->exclusive_val) {
543 goto fail;
544 }
545 if (size == 3) {
546 segv = get_user_u32(val, addr + 4);
547 if (segv) {
548 env->cp15.c6_data = addr + 4;
549 goto done;
550 }
551 if (val != env->exclusive_high) {
552 goto fail;
553 }
554 }
555 val = env->regs[(env->exclusive_info >> 8) & 0xf];
556 switch (size) {
557 case 0:
558 segv = put_user_u8(val, addr);
559 break;
560 case 1:
561 segv = put_user_u16(val, addr);
562 break;
563 case 2:
564 case 3:
565 segv = put_user_u32(val, addr);
566 break;
567 }
568 if (segv) {
569 env->cp15.c6_data = addr;
570 goto done;
571 }
572 if (size == 3) {
573 val = env->regs[(env->exclusive_info >> 12) & 0xf];
574 segv = put_user_u32(val, addr + 4);
575 if (segv) {
576 env->cp15.c6_data = addr + 4;
577 goto done;
578 }
579 }
580 rc = 0;
581 fail:
582 env->regs[15] += 4;
583 env->regs[(env->exclusive_info >> 4) & 0xf] = rc;
584 done:
585 end_exclusive();
586 return segv;
587 }
588
589 void cpu_loop(CPUARMState *env)
590 {
591 int trapnr;
592 unsigned int n, insn;
593 target_siginfo_t info;
594 uint32_t addr;
595
596 for(;;) {
597 cpu_exec_start(env);
598 trapnr = cpu_arm_exec(env);
599 cpu_exec_end(env);
600 switch(trapnr) {
601 case EXCP_UDEF:
602 {
603 TaskState *ts = env->opaque;
604 uint32_t opcode;
605 int rc;
606
607 /* we handle the FPU emulation here, as Linux */
608 /* we get the opcode */
609 /* FIXME - what to do if get_user() fails? */
610 get_user_u32(opcode, env->regs[15]);
611
612 rc = EmulateAll(opcode, &ts->fpa, env);
613 if (rc == 0) { /* illegal instruction */
614 info.si_signo = SIGILL;
615 info.si_errno = 0;
616 info.si_code = TARGET_ILL_ILLOPN;
617 info._sifields._sigfault._addr = env->regs[15];
618 queue_signal(env, info.si_signo, &info);
619 } else if (rc < 0) { /* FP exception */
620 int arm_fpe=0;
621
622 /* translate softfloat flags to FPSR flags */
623 if (-rc & float_flag_invalid)
624 arm_fpe |= BIT_IOC;
625 if (-rc & float_flag_divbyzero)
626 arm_fpe |= BIT_DZC;
627 if (-rc & float_flag_overflow)
628 arm_fpe |= BIT_OFC;
629 if (-rc & float_flag_underflow)
630 arm_fpe |= BIT_UFC;
631 if (-rc & float_flag_inexact)
632 arm_fpe |= BIT_IXC;
633
634 FPSR fpsr = ts->fpa.fpsr;
635 //printf("fpsr 0x%x, arm_fpe 0x%x\n",fpsr,arm_fpe);
636
637 if (fpsr & (arm_fpe << 16)) { /* exception enabled? */
638 info.si_signo = SIGFPE;
639 info.si_errno = 0;
640
641 /* ordered by priority, least first */
642 if (arm_fpe & BIT_IXC) info.si_code = TARGET_FPE_FLTRES;
643 if (arm_fpe & BIT_UFC) info.si_code = TARGET_FPE_FLTUND;
644 if (arm_fpe & BIT_OFC) info.si_code = TARGET_FPE_FLTOVF;
645 if (arm_fpe & BIT_DZC) info.si_code = TARGET_FPE_FLTDIV;
646 if (arm_fpe & BIT_IOC) info.si_code = TARGET_FPE_FLTINV;
647
648 info._sifields._sigfault._addr = env->regs[15];
649 queue_signal(env, info.si_signo, &info);
650 } else {
651 env->regs[15] += 4;
652 }
653
654 /* accumulate unenabled exceptions */
655 if ((!(fpsr & BIT_IXE)) && (arm_fpe & BIT_IXC))
656 fpsr |= BIT_IXC;
657 if ((!(fpsr & BIT_UFE)) && (arm_fpe & BIT_UFC))
658 fpsr |= BIT_UFC;
659 if ((!(fpsr & BIT_OFE)) && (arm_fpe & BIT_OFC))
660 fpsr |= BIT_OFC;
661 if ((!(fpsr & BIT_DZE)) && (arm_fpe & BIT_DZC))
662 fpsr |= BIT_DZC;
663 if ((!(fpsr & BIT_IOE)) && (arm_fpe & BIT_IOC))
664 fpsr |= BIT_IOC;
665 ts->fpa.fpsr=fpsr;
666 } else { /* everything OK */
667 /* increment PC */
668 env->regs[15] += 4;
669 }
670 }
671 break;
672 case EXCP_SWI:
673 case EXCP_BKPT:
674 {
675 env->eabi = 1;
676 /* system call */
677 if (trapnr == EXCP_BKPT) {
678 if (env->thumb) {
679 /* FIXME - what to do if get_user() fails? */
680 get_user_u16(insn, env->regs[15]);
681 n = insn & 0xff;
682 env->regs[15] += 2;
683 } else {
684 /* FIXME - what to do if get_user() fails? */
685 get_user_u32(insn, env->regs[15]);
686 n = (insn & 0xf) | ((insn >> 4) & 0xff0);
687 env->regs[15] += 4;
688 }
689 } else {
690 if (env->thumb) {
691 /* FIXME - what to do if get_user() fails? */
692 get_user_u16(insn, env->regs[15] - 2);
693 n = insn & 0xff;
694 } else {
695 /* FIXME - what to do if get_user() fails? */
696 get_user_u32(insn, env->regs[15] - 4);
697 n = insn & 0xffffff;
698 }
699 }
700
701 if (n == ARM_NR_cacheflush) {
702 /* nop */
703 } else if (n == ARM_NR_semihosting
704 || n == ARM_NR_thumb_semihosting) {
705 env->regs[0] = do_arm_semihosting (env);
706 } else if (n == 0 || n >= ARM_SYSCALL_BASE
707 || (env->thumb && n == ARM_THUMB_SYSCALL)) {
708 /* linux syscall */
709 if (env->thumb || n == 0) {
710 n = env->regs[7];
711 } else {
712 n -= ARM_SYSCALL_BASE;
713 env->eabi = 0;
714 }
715 if ( n > ARM_NR_BASE) {
716 switch (n) {
717 case ARM_NR_cacheflush:
718 /* nop */
719 break;
720 case ARM_NR_set_tls:
721 cpu_set_tls(env, env->regs[0]);
722 env->regs[0] = 0;
723 break;
724 default:
725 gemu_log("qemu: Unsupported ARM syscall: 0x%x\n",
726 n);
727 env->regs[0] = -TARGET_ENOSYS;
728 break;
729 }
730 } else {
731 env->regs[0] = do_syscall(env,
732 n,
733 env->regs[0],
734 env->regs[1],
735 env->regs[2],
736 env->regs[3],
737 env->regs[4],
738 env->regs[5]);
739 }
740 } else {
741 goto error;
742 }
743 }
744 break;
745 case EXCP_INTERRUPT:
746 /* just indicate that signals should be handled asap */
747 break;
748 case EXCP_PREFETCH_ABORT:
749 addr = env->cp15.c6_insn;
750 goto do_segv;
751 case EXCP_DATA_ABORT:
752 addr = env->cp15.c6_data;
753 goto do_segv;
754 do_segv:
755 {
756 info.si_signo = SIGSEGV;
757 info.si_errno = 0;
758 /* XXX: check env->error_code */
759 info.si_code = TARGET_SEGV_MAPERR;
760 info._sifields._sigfault._addr = addr;
761 queue_signal(env, info.si_signo, &info);
762 }
763 break;
764 case EXCP_DEBUG:
765 {
766 int sig;
767
768 sig = gdb_handlesig (env, TARGET_SIGTRAP);
769 if (sig)
770 {
771 info.si_signo = sig;
772 info.si_errno = 0;
773 info.si_code = TARGET_TRAP_BRKPT;
774 queue_signal(env, info.si_signo, &info);
775 }
776 }
777 break;
778 case EXCP_KERNEL_TRAP:
779 if (do_kernel_trap(env))
780 goto error;
781 break;
782 case EXCP_STREX:
783 if (do_strex(env)) {
784 addr = env->cp15.c6_data;
785 goto do_segv;
786 }
787 break;
788 default:
789 error:
790 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
791 trapnr);
792 cpu_dump_state(env, stderr, fprintf, 0);
793 abort();
794 }
795 process_pending_signals(env);
796 }
797 }
798
799 #endif
800
801 #ifdef TARGET_UNICORE32
802
803 void cpu_loop(CPUState *env)
804 {
805 int trapnr;
806 unsigned int n, insn;
807 target_siginfo_t info;
808
809 for (;;) {
810 cpu_exec_start(env);
811 trapnr = uc32_cpu_exec(env);
812 cpu_exec_end(env);
813 switch (trapnr) {
814 case UC32_EXCP_PRIV:
815 {
816 /* system call */
817 get_user_u32(insn, env->regs[31] - 4);
818 n = insn & 0xffffff;
819
820 if (n >= UC32_SYSCALL_BASE) {
821 /* linux syscall */
822 n -= UC32_SYSCALL_BASE;
823 if (n == UC32_SYSCALL_NR_set_tls) {
824 cpu_set_tls(env, env->regs[0]);
825 env->regs[0] = 0;
826 } else {
827 env->regs[0] = do_syscall(env,
828 n,
829 env->regs[0],
830 env->regs[1],
831 env->regs[2],
832 env->regs[3],
833 env->regs[4],
834 env->regs[5]);
835 }
836 } else {
837 goto error;
838 }
839 }
840 break;
841 case UC32_EXCP_TRAP:
842 info.si_signo = SIGSEGV;
843 info.si_errno = 0;
844 /* XXX: check env->error_code */
845 info.si_code = TARGET_SEGV_MAPERR;
846 info._sifields._sigfault._addr = env->cp0.c4_faultaddr;
847 queue_signal(env, info.si_signo, &info);
848 break;
849 case EXCP_INTERRUPT:
850 /* just indicate that signals should be handled asap */
851 break;
852 case EXCP_DEBUG:
853 {
854 int sig;
855
856 sig = gdb_handlesig(env, TARGET_SIGTRAP);
857 if (sig) {
858 info.si_signo = sig;
859 info.si_errno = 0;
860 info.si_code = TARGET_TRAP_BRKPT;
861 queue_signal(env, info.si_signo, &info);
862 }
863 }
864 break;
865 default:
866 goto error;
867 }
868 process_pending_signals(env);
869 }
870
871 error:
872 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr);
873 cpu_dump_state(env, stderr, fprintf, 0);
874 abort();
875 }
876 #endif
877
878 #ifdef TARGET_SPARC
879 #define SPARC64_STACK_BIAS 2047
880
881 //#define DEBUG_WIN
882
883 /* WARNING: dealing with register windows _is_ complicated. More info
884 can be found at http://www.sics.se/~psm/sparcstack.html */
885 static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
886 {
887 index = (index + cwp * 16) % (16 * env->nwindows);
888 /* wrap handling : if cwp is on the last window, then we use the
889 registers 'after' the end */
890 if (index < 8 && env->cwp == env->nwindows - 1)
891 index += 16 * env->nwindows;
892 return index;
893 }
894
895 /* save the register window 'cwp1' */
896 static inline void save_window_offset(CPUSPARCState *env, int cwp1)
897 {
898 unsigned int i;
899 abi_ulong sp_ptr;
900
901 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
902 #ifdef TARGET_SPARC64
903 if (sp_ptr & 3)
904 sp_ptr += SPARC64_STACK_BIAS;
905 #endif
906 #if defined(DEBUG_WIN)
907 printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n",
908 sp_ptr, cwp1);
909 #endif
910 for(i = 0; i < 16; i++) {
911 /* FIXME - what to do if put_user() fails? */
912 put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
913 sp_ptr += sizeof(abi_ulong);
914 }
915 }
916
917 static void save_window(CPUSPARCState *env)
918 {
919 #ifndef TARGET_SPARC64
920 unsigned int new_wim;
921 new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) &
922 ((1LL << env->nwindows) - 1);
923 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
924 env->wim = new_wim;
925 #else
926 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
927 env->cansave++;
928 env->canrestore--;
929 #endif
930 }
931
932 static void restore_window(CPUSPARCState *env)
933 {
934 #ifndef TARGET_SPARC64
935 unsigned int new_wim;
936 #endif
937 unsigned int i, cwp1;
938 abi_ulong sp_ptr;
939
940 #ifndef TARGET_SPARC64
941 new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) &
942 ((1LL << env->nwindows) - 1);
943 #endif
944
945 /* restore the invalid window */
946 cwp1 = cpu_cwp_inc(env, env->cwp + 1);
947 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
948 #ifdef TARGET_SPARC64
949 if (sp_ptr & 3)
950 sp_ptr += SPARC64_STACK_BIAS;
951 #endif
952 #if defined(DEBUG_WIN)
953 printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n",
954 sp_ptr, cwp1);
955 #endif
956 for(i = 0; i < 16; i++) {
957 /* FIXME - what to do if get_user() fails? */
958 get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
959 sp_ptr += sizeof(abi_ulong);
960 }
961 #ifdef TARGET_SPARC64
962 env->canrestore++;
963 if (env->cleanwin < env->nwindows - 1)
964 env->cleanwin++;
965 env->cansave--;
966 #else
967 env->wim = new_wim;
968 #endif
969 }
970
971 static void flush_windows(CPUSPARCState *env)
972 {
973 int offset, cwp1;
974
975 offset = 1;
976 for(;;) {
977 /* if restore would invoke restore_window(), then we can stop */
978 cwp1 = cpu_cwp_inc(env, env->cwp + offset);
979 #ifndef TARGET_SPARC64
980 if (env->wim & (1 << cwp1))
981 break;
982 #else
983 if (env->canrestore == 0)
984 break;
985 env->cansave++;
986 env->canrestore--;
987 #endif
988 save_window_offset(env, cwp1);
989 offset++;
990 }
991 cwp1 = cpu_cwp_inc(env, env->cwp + 1);
992 #ifndef TARGET_SPARC64
993 /* set wim so that restore will reload the registers */
994 env->wim = 1 << cwp1;
995 #endif
996 #if defined(DEBUG_WIN)
997 printf("flush_windows: nb=%d\n", offset - 1);
998 #endif
999 }
1000
1001 void cpu_loop (CPUSPARCState *env)
1002 {
1003 int trapnr;
1004 abi_long ret;
1005 target_siginfo_t info;
1006
1007 while (1) {
1008 trapnr = cpu_sparc_exec (env);
1009
1010 switch (trapnr) {
1011 #ifndef TARGET_SPARC64
1012 case 0x88:
1013 case 0x90:
1014 #else
1015 case 0x110:
1016 case 0x16d:
1017 #endif
1018 ret = do_syscall (env, env->gregs[1],
1019 env->regwptr[0], env->regwptr[1],
1020 env->regwptr[2], env->regwptr[3],
1021 env->regwptr[4], env->regwptr[5]);
1022 if ((abi_ulong)ret >= (abi_ulong)(-515)) {
1023 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
1024 env->xcc |= PSR_CARRY;
1025 #else
1026 env->psr |= PSR_CARRY;
1027 #endif
1028 ret = -ret;
1029 } else {
1030 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
1031 env->xcc &= ~PSR_CARRY;
1032 #else
1033 env->psr &= ~PSR_CARRY;
1034 #endif
1035 }
1036 env->regwptr[0] = ret;
1037 /* next instruction */
1038 env->pc = env->npc;
1039 env->npc = env->npc + 4;
1040 break;
1041 case 0x83: /* flush windows */
1042 #ifdef TARGET_ABI32
1043 case 0x103:
1044 #endif
1045 flush_windows(env);
1046 /* next instruction */
1047 env->pc = env->npc;
1048 env->npc = env->npc + 4;
1049 break;
1050 #ifndef TARGET_SPARC64
1051 case TT_WIN_OVF: /* window overflow */
1052 save_window(env);
1053 break;
1054 case TT_WIN_UNF: /* window underflow */
1055 restore_window(env);
1056 break;
1057 case TT_TFAULT:
1058 case TT_DFAULT:
1059 {
1060 info.si_signo = SIGSEGV;
1061 info.si_errno = 0;
1062 /* XXX: check env->error_code */
1063 info.si_code = TARGET_SEGV_MAPERR;
1064 info._sifields._sigfault._addr = env->mmuregs[4];
1065 queue_signal(env, info.si_signo, &info);
1066 }
1067 break;
1068 #else
1069 case TT_SPILL: /* window overflow */
1070 save_window(env);
1071 break;
1072 case TT_FILL: /* 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 if (trapnr == TT_DFAULT)
1083 info._sifields._sigfault._addr = env->dmmuregs[4];
1084 else
1085 info._sifields._sigfault._addr = cpu_tsptr(env)->tpc;
1086 queue_signal(env, info.si_signo, &info);
1087 }
1088 break;
1089 #ifndef TARGET_ABI32
1090 case 0x16e:
1091 flush_windows(env);
1092 sparc64_get_context(env);
1093 break;
1094 case 0x16f:
1095 flush_windows(env);
1096 sparc64_set_context(env);
1097 break;
1098 #endif
1099 #endif
1100 case EXCP_INTERRUPT:
1101 /* just indicate that signals should be handled asap */
1102 break;
1103 case EXCP_DEBUG:
1104 {
1105 int sig;
1106
1107 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1108 if (sig)
1109 {
1110 info.si_signo = sig;
1111 info.si_errno = 0;
1112 info.si_code = TARGET_TRAP_BRKPT;
1113 queue_signal(env, info.si_signo, &info);
1114 }
1115 }
1116 break;
1117 default:
1118 printf ("Unhandled trap: 0x%x\n", trapnr);
1119 cpu_dump_state(env, stderr, fprintf, 0);
1120 exit (1);
1121 }
1122 process_pending_signals (env);
1123 }
1124 }
1125
1126 #endif
1127
1128 #ifdef TARGET_PPC
1129 static inline uint64_t cpu_ppc_get_tb (CPUState *env)
1130 {
1131 /* TO FIX */
1132 return 0;
1133 }
1134
1135 uint64_t cpu_ppc_load_tbl (CPUState *env)
1136 {
1137 return cpu_ppc_get_tb(env);
1138 }
1139
1140 uint32_t cpu_ppc_load_tbu (CPUState *env)
1141 {
1142 return cpu_ppc_get_tb(env) >> 32;
1143 }
1144
1145 uint64_t cpu_ppc_load_atbl (CPUState *env)
1146 {
1147 return cpu_ppc_get_tb(env);
1148 }
1149
1150 uint32_t cpu_ppc_load_atbu (CPUState *env)
1151 {
1152 return cpu_ppc_get_tb(env) >> 32;
1153 }
1154
1155 uint32_t cpu_ppc601_load_rtcu (CPUState *env)
1156 __attribute__ (( alias ("cpu_ppc_load_tbu") ));
1157
1158 uint32_t cpu_ppc601_load_rtcl (CPUState *env)
1159 {
1160 return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
1161 }
1162
1163 /* XXX: to be fixed */
1164 int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, uint32_t *valp)
1165 {
1166 return -1;
1167 }
1168
1169 int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, uint32_t val)
1170 {
1171 return -1;
1172 }
1173
1174 #define EXCP_DUMP(env, fmt, ...) \
1175 do { \
1176 fprintf(stderr, fmt , ## __VA_ARGS__); \
1177 cpu_dump_state(env, stderr, fprintf, 0); \
1178 qemu_log(fmt, ## __VA_ARGS__); \
1179 if (logfile) \
1180 log_cpu_state(env, 0); \
1181 } while (0)
1182
1183 static int do_store_exclusive(CPUPPCState *env)
1184 {
1185 target_ulong addr;
1186 target_ulong page_addr;
1187 target_ulong val;
1188 int flags;
1189 int segv = 0;
1190
1191 addr = env->reserve_ea;
1192 page_addr = addr & TARGET_PAGE_MASK;
1193 start_exclusive();
1194 mmap_lock();
1195 flags = page_get_flags(page_addr);
1196 if ((flags & PAGE_READ) == 0) {
1197 segv = 1;
1198 } else {
1199 int reg = env->reserve_info & 0x1f;
1200 int size = (env->reserve_info >> 5) & 0xf;
1201 int stored = 0;
1202
1203 if (addr == env->reserve_addr) {
1204 switch (size) {
1205 case 1: segv = get_user_u8(val, addr); break;
1206 case 2: segv = get_user_u16(val, addr); break;
1207 case 4: segv = get_user_u32(val, addr); break;
1208 #if defined(TARGET_PPC64)
1209 case 8: segv = get_user_u64(val, addr); break;
1210 #endif
1211 default: abort();
1212 }
1213 if (!segv && val == env->reserve_val) {
1214 val = env->gpr[reg];
1215 switch (size) {
1216 case 1: segv = put_user_u8(val, addr); break;
1217 case 2: segv = put_user_u16(val, addr); break;
1218 case 4: segv = put_user_u32(val, addr); break;
1219 #if defined(TARGET_PPC64)
1220 case 8: segv = put_user_u64(val, addr); break;
1221 #endif
1222 default: abort();
1223 }
1224 if (!segv) {
1225 stored = 1;
1226 }
1227 }
1228 }
1229 env->crf[0] = (stored << 1) | xer_so;
1230 env->reserve_addr = (target_ulong)-1;
1231 }
1232 if (!segv) {
1233 env->nip += 4;
1234 }
1235 mmap_unlock();
1236 end_exclusive();
1237 return segv;
1238 }
1239
1240 void cpu_loop(CPUPPCState *env)
1241 {
1242 target_siginfo_t info;
1243 int trapnr;
1244 uint32_t ret;
1245
1246 for(;;) {
1247 cpu_exec_start(env);
1248 trapnr = cpu_ppc_exec(env);
1249 cpu_exec_end(env);
1250 switch(trapnr) {
1251 case POWERPC_EXCP_NONE:
1252 /* Just go on */
1253 break;
1254 case POWERPC_EXCP_CRITICAL: /* Critical input */
1255 cpu_abort(env, "Critical interrupt while in user mode. "
1256 "Aborting\n");
1257 break;
1258 case POWERPC_EXCP_MCHECK: /* Machine check exception */
1259 cpu_abort(env, "Machine check exception while in user mode. "
1260 "Aborting\n");
1261 break;
1262 case POWERPC_EXCP_DSI: /* Data storage exception */
1263 EXCP_DUMP(env, "Invalid data memory access: 0x" TARGET_FMT_lx "\n",
1264 env->spr[SPR_DAR]);
1265 /* XXX: check this. Seems bugged */
1266 switch (env->error_code & 0xFF000000) {
1267 case 0x40000000:
1268 info.si_signo = TARGET_SIGSEGV;
1269 info.si_errno = 0;
1270 info.si_code = TARGET_SEGV_MAPERR;
1271 break;
1272 case 0x04000000:
1273 info.si_signo = TARGET_SIGILL;
1274 info.si_errno = 0;
1275 info.si_code = TARGET_ILL_ILLADR;
1276 break;
1277 case 0x08000000:
1278 info.si_signo = TARGET_SIGSEGV;
1279 info.si_errno = 0;
1280 info.si_code = TARGET_SEGV_ACCERR;
1281 break;
1282 default:
1283 /* Let's send a regular segfault... */
1284 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1285 env->error_code);
1286 info.si_signo = TARGET_SIGSEGV;
1287 info.si_errno = 0;
1288 info.si_code = TARGET_SEGV_MAPERR;
1289 break;
1290 }
1291 info._sifields._sigfault._addr = env->nip;
1292 queue_signal(env, info.si_signo, &info);
1293 break;
1294 case POWERPC_EXCP_ISI: /* Instruction storage exception */
1295 EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" TARGET_FMT_lx
1296 "\n", env->spr[SPR_SRR0]);
1297 /* XXX: check this */
1298 switch (env->error_code & 0xFF000000) {
1299 case 0x40000000:
1300 info.si_signo = TARGET_SIGSEGV;
1301 info.si_errno = 0;
1302 info.si_code = TARGET_SEGV_MAPERR;
1303 break;
1304 case 0x10000000:
1305 case 0x08000000:
1306 info.si_signo = TARGET_SIGSEGV;
1307 info.si_errno = 0;
1308 info.si_code = TARGET_SEGV_ACCERR;
1309 break;
1310 default:
1311 /* Let's send a regular segfault... */
1312 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1313 env->error_code);
1314 info.si_signo = TARGET_SIGSEGV;
1315 info.si_errno = 0;
1316 info.si_code = TARGET_SEGV_MAPERR;
1317 break;
1318 }
1319 info._sifields._sigfault._addr = env->nip - 4;
1320 queue_signal(env, info.si_signo, &info);
1321 break;
1322 case POWERPC_EXCP_EXTERNAL: /* External input */
1323 cpu_abort(env, "External interrupt while in user mode. "
1324 "Aborting\n");
1325 break;
1326 case POWERPC_EXCP_ALIGN: /* Alignment exception */
1327 EXCP_DUMP(env, "Unaligned memory access\n");
1328 /* XXX: check this */
1329 info.si_signo = TARGET_SIGBUS;
1330 info.si_errno = 0;
1331 info.si_code = TARGET_BUS_ADRALN;
1332 info._sifields._sigfault._addr = env->nip - 4;
1333 queue_signal(env, info.si_signo, &info);
1334 break;
1335 case POWERPC_EXCP_PROGRAM: /* Program exception */
1336 /* XXX: check this */
1337 switch (env->error_code & ~0xF) {
1338 case POWERPC_EXCP_FP:
1339 EXCP_DUMP(env, "Floating point program exception\n");
1340 info.si_signo = TARGET_SIGFPE;
1341 info.si_errno = 0;
1342 switch (env->error_code & 0xF) {
1343 case POWERPC_EXCP_FP_OX:
1344 info.si_code = TARGET_FPE_FLTOVF;
1345 break;
1346 case POWERPC_EXCP_FP_UX:
1347 info.si_code = TARGET_FPE_FLTUND;
1348 break;
1349 case POWERPC_EXCP_FP_ZX:
1350 case POWERPC_EXCP_FP_VXZDZ:
1351 info.si_code = TARGET_FPE_FLTDIV;
1352 break;
1353 case POWERPC_EXCP_FP_XX:
1354 info.si_code = TARGET_FPE_FLTRES;
1355 break;
1356 case POWERPC_EXCP_FP_VXSOFT:
1357 info.si_code = TARGET_FPE_FLTINV;
1358 break;
1359 case POWERPC_EXCP_FP_VXSNAN:
1360 case POWERPC_EXCP_FP_VXISI:
1361 case POWERPC_EXCP_FP_VXIDI:
1362 case POWERPC_EXCP_FP_VXIMZ:
1363 case POWERPC_EXCP_FP_VXVC:
1364 case POWERPC_EXCP_FP_VXSQRT:
1365 case POWERPC_EXCP_FP_VXCVI:
1366 info.si_code = TARGET_FPE_FLTSUB;
1367 break;
1368 default:
1369 EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
1370 env->error_code);
1371 break;
1372 }
1373 break;
1374 case POWERPC_EXCP_INVAL:
1375 EXCP_DUMP(env, "Invalid instruction\n");
1376 info.si_signo = TARGET_SIGILL;
1377 info.si_errno = 0;
1378 switch (env->error_code & 0xF) {
1379 case POWERPC_EXCP_INVAL_INVAL:
1380 info.si_code = TARGET_ILL_ILLOPC;
1381 break;
1382 case POWERPC_EXCP_INVAL_LSWX:
1383 info.si_code = TARGET_ILL_ILLOPN;
1384 break;
1385 case POWERPC_EXCP_INVAL_SPR:
1386 info.si_code = TARGET_ILL_PRVREG;
1387 break;
1388 case POWERPC_EXCP_INVAL_FP:
1389 info.si_code = TARGET_ILL_COPROC;
1390 break;
1391 default:
1392 EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
1393 env->error_code & 0xF);
1394 info.si_code = TARGET_ILL_ILLADR;
1395 break;
1396 }
1397 break;
1398 case POWERPC_EXCP_PRIV:
1399 EXCP_DUMP(env, "Privilege violation\n");
1400 info.si_signo = TARGET_SIGILL;
1401 info.si_errno = 0;
1402 switch (env->error_code & 0xF) {
1403 case POWERPC_EXCP_PRIV_OPC:
1404 info.si_code = TARGET_ILL_PRVOPC;
1405 break;
1406 case POWERPC_EXCP_PRIV_REG:
1407 info.si_code = TARGET_ILL_PRVREG;
1408 break;
1409 default:
1410 EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
1411 env->error_code & 0xF);
1412 info.si_code = TARGET_ILL_PRVOPC;
1413 break;
1414 }
1415 break;
1416 case POWERPC_EXCP_TRAP:
1417 cpu_abort(env, "Tried to call a TRAP\n");
1418 break;
1419 default:
1420 /* Should not happen ! */
1421 cpu_abort(env, "Unknown program exception (%02x)\n",
1422 env->error_code);
1423 break;
1424 }
1425 info._sifields._sigfault._addr = env->nip - 4;
1426 queue_signal(env, info.si_signo, &info);
1427 break;
1428 case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
1429 EXCP_DUMP(env, "No floating point allowed\n");
1430 info.si_signo = TARGET_SIGILL;
1431 info.si_errno = 0;
1432 info.si_code = TARGET_ILL_COPROC;
1433 info._sifields._sigfault._addr = env->nip - 4;
1434 queue_signal(env, info.si_signo, &info);
1435 break;
1436 case POWERPC_EXCP_SYSCALL: /* System call exception */
1437 cpu_abort(env, "Syscall exception while in user mode. "
1438 "Aborting\n");
1439 break;
1440 case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
1441 EXCP_DUMP(env, "No APU instruction allowed\n");
1442 info.si_signo = TARGET_SIGILL;
1443 info.si_errno = 0;
1444 info.si_code = TARGET_ILL_COPROC;
1445 info._sifields._sigfault._addr = env->nip - 4;
1446 queue_signal(env, info.si_signo, &info);
1447 break;
1448 case POWERPC_EXCP_DECR: /* Decrementer exception */
1449 cpu_abort(env, "Decrementer interrupt while in user mode. "
1450 "Aborting\n");
1451 break;
1452 case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
1453 cpu_abort(env, "Fix interval timer interrupt while in user mode. "
1454 "Aborting\n");
1455 break;
1456 case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
1457 cpu_abort(env, "Watchdog timer interrupt while in user mode. "
1458 "Aborting\n");
1459 break;
1460 case POWERPC_EXCP_DTLB: /* Data TLB error */
1461 cpu_abort(env, "Data TLB exception while in user mode. "
1462 "Aborting\n");
1463 break;
1464 case POWERPC_EXCP_ITLB: /* Instruction TLB error */
1465 cpu_abort(env, "Instruction TLB exception while in user mode. "
1466 "Aborting\n");
1467 break;
1468 case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */
1469 EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
1470 info.si_signo = TARGET_SIGILL;
1471 info.si_errno = 0;
1472 info.si_code = TARGET_ILL_COPROC;
1473 info._sifields._sigfault._addr = env->nip - 4;
1474 queue_signal(env, info.si_signo, &info);
1475 break;
1476 case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */
1477 cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
1478 break;
1479 case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */
1480 cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
1481 break;
1482 case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */
1483 cpu_abort(env, "Performance monitor exception not handled\n");
1484 break;
1485 case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
1486 cpu_abort(env, "Doorbell interrupt while in user mode. "
1487 "Aborting\n");
1488 break;
1489 case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
1490 cpu_abort(env, "Doorbell critical interrupt while in user mode. "
1491 "Aborting\n");
1492 break;
1493 case POWERPC_EXCP_RESET: /* System reset exception */
1494 cpu_abort(env, "Reset interrupt while in user mode. "
1495 "Aborting\n");
1496 break;
1497 case POWERPC_EXCP_DSEG: /* Data segment exception */
1498 cpu_abort(env, "Data segment exception while in user mode. "
1499 "Aborting\n");
1500 break;
1501 case POWERPC_EXCP_ISEG: /* Instruction segment exception */
1502 cpu_abort(env, "Instruction segment exception "
1503 "while in user mode. Aborting\n");
1504 break;
1505 /* PowerPC 64 with hypervisor mode support */
1506 case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
1507 cpu_abort(env, "Hypervisor decrementer interrupt "
1508 "while in user mode. Aborting\n");
1509 break;
1510 case POWERPC_EXCP_TRACE: /* Trace exception */
1511 /* Nothing to do:
1512 * we use this exception to emulate step-by-step execution mode.
1513 */
1514 break;
1515 /* PowerPC 64 with hypervisor mode support */
1516 case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
1517 cpu_abort(env, "Hypervisor data storage exception "
1518 "while in user mode. Aborting\n");
1519 break;
1520 case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */
1521 cpu_abort(env, "Hypervisor instruction storage exception "
1522 "while in user mode. Aborting\n");
1523 break;
1524 case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
1525 cpu_abort(env, "Hypervisor data segment exception "
1526 "while in user mode. Aborting\n");
1527 break;
1528 case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */
1529 cpu_abort(env, "Hypervisor instruction segment exception "
1530 "while in user mode. Aborting\n");
1531 break;
1532 case POWERPC_EXCP_VPU: /* Vector unavailable exception */
1533 EXCP_DUMP(env, "No Altivec instructions allowed\n");
1534 info.si_signo = TARGET_SIGILL;
1535 info.si_errno = 0;
1536 info.si_code = TARGET_ILL_COPROC;
1537 info._sifields._sigfault._addr = env->nip - 4;
1538 queue_signal(env, info.si_signo, &info);
1539 break;
1540 case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */
1541 cpu_abort(env, "Programable interval timer interrupt "
1542 "while in user mode. Aborting\n");
1543 break;
1544 case POWERPC_EXCP_IO: /* IO error exception */
1545 cpu_abort(env, "IO error exception while in user mode. "
1546 "Aborting\n");
1547 break;
1548 case POWERPC_EXCP_RUNM: /* Run mode exception */
1549 cpu_abort(env, "Run mode exception while in user mode. "
1550 "Aborting\n");
1551 break;
1552 case POWERPC_EXCP_EMUL: /* Emulation trap exception */
1553 cpu_abort(env, "Emulation trap exception not handled\n");
1554 break;
1555 case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
1556 cpu_abort(env, "Instruction fetch TLB exception "
1557 "while in user-mode. Aborting");
1558 break;
1559 case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
1560 cpu_abort(env, "Data load TLB exception while in user-mode. "
1561 "Aborting");
1562 break;
1563 case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
1564 cpu_abort(env, "Data store TLB exception while in user-mode. "
1565 "Aborting");
1566 break;
1567 case POWERPC_EXCP_FPA: /* Floating-point assist exception */
1568 cpu_abort(env, "Floating-point assist exception not handled\n");
1569 break;
1570 case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
1571 cpu_abort(env, "Instruction address breakpoint exception "
1572 "not handled\n");
1573 break;
1574 case POWERPC_EXCP_SMI: /* System management interrupt */
1575 cpu_abort(env, "System management interrupt while in user mode. "
1576 "Aborting\n");
1577 break;
1578 case POWERPC_EXCP_THERM: /* Thermal interrupt */
1579 cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
1580 "Aborting\n");
1581 break;
1582 case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */
1583 cpu_abort(env, "Performance monitor exception not handled\n");
1584 break;
1585 case POWERPC_EXCP_VPUA: /* Vector assist exception */
1586 cpu_abort(env, "Vector assist exception not handled\n");
1587 break;
1588 case POWERPC_EXCP_SOFTP: /* Soft patch exception */
1589 cpu_abort(env, "Soft patch exception not handled\n");
1590 break;
1591 case POWERPC_EXCP_MAINT: /* Maintenance exception */
1592 cpu_abort(env, "Maintenance exception while in user mode. "
1593 "Aborting\n");
1594 break;
1595 case POWERPC_EXCP_STOP: /* stop translation */
1596 /* We did invalidate the instruction cache. Go on */
1597 break;
1598 case POWERPC_EXCP_BRANCH: /* branch instruction: */
1599 /* We just stopped because of a branch. Go on */
1600 break;
1601 case POWERPC_EXCP_SYSCALL_USER:
1602 /* system call in user-mode emulation */
1603 /* WARNING:
1604 * PPC ABI uses overflow flag in cr0 to signal an error
1605 * in syscalls.
1606 */
1607 #if 0
1608 printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
1609 env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
1610 #endif
1611 env->crf[0] &= ~0x1;
1612 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
1613 env->gpr[5], env->gpr[6], env->gpr[7],
1614 env->gpr[8]);
1615 if (ret == (uint32_t)(-TARGET_QEMU_ESIGRETURN)) {
1616 /* Returning from a successful sigreturn syscall.
1617 Avoid corrupting register state. */
1618 break;
1619 }
1620 if (ret > (uint32_t)(-515)) {
1621 env->crf[0] |= 0x1;
1622 ret = -ret;
1623 }
1624 env->gpr[3] = ret;
1625 #if 0
1626 printf("syscall returned 0x%08x (%d)\n", ret, ret);
1627 #endif
1628 break;
1629 case POWERPC_EXCP_STCX:
1630 if (do_store_exclusive(env)) {
1631 info.si_signo = TARGET_SIGSEGV;
1632 info.si_errno = 0;
1633 info.si_code = TARGET_SEGV_MAPERR;
1634 info._sifields._sigfault._addr = env->nip;
1635 queue_signal(env, info.si_signo, &info);
1636 }
1637 break;
1638 case EXCP_DEBUG:
1639 {
1640 int sig;
1641
1642 sig = gdb_handlesig(env, TARGET_SIGTRAP);
1643 if (sig) {
1644 info.si_signo = sig;
1645 info.si_errno = 0;
1646 info.si_code = TARGET_TRAP_BRKPT;
1647 queue_signal(env, info.si_signo, &info);
1648 }
1649 }
1650 break;
1651 case EXCP_INTERRUPT:
1652 /* just indicate that signals should be handled asap */
1653 break;
1654 default:
1655 cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
1656 break;
1657 }
1658 process_pending_signals(env);
1659 }
1660 }
1661 #endif
1662
1663 #ifdef TARGET_MIPS
1664
1665 #define MIPS_SYS(name, args) args,
1666
1667 static const uint8_t mips_syscall_args[] = {
1668 MIPS_SYS(sys_syscall , 0) /* 4000 */
1669 MIPS_SYS(sys_exit , 1)
1670 MIPS_SYS(sys_fork , 0)
1671 MIPS_SYS(sys_read , 3)
1672 MIPS_SYS(sys_write , 3)
1673 MIPS_SYS(sys_open , 3) /* 4005 */
1674 MIPS_SYS(sys_close , 1)
1675 MIPS_SYS(sys_waitpid , 3)
1676 MIPS_SYS(sys_creat , 2)
1677 MIPS_SYS(sys_link , 2)
1678 MIPS_SYS(sys_unlink , 1) /* 4010 */
1679 MIPS_SYS(sys_execve , 0)
1680 MIPS_SYS(sys_chdir , 1)
1681 MIPS_SYS(sys_time , 1)
1682 MIPS_SYS(sys_mknod , 3)
1683 MIPS_SYS(sys_chmod , 2) /* 4015 */
1684 MIPS_SYS(sys_lchown , 3)
1685 MIPS_SYS(sys_ni_syscall , 0)
1686 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1687 MIPS_SYS(sys_lseek , 3)
1688 MIPS_SYS(sys_getpid , 0) /* 4020 */
1689 MIPS_SYS(sys_mount , 5)
1690 MIPS_SYS(sys_oldumount , 1)
1691 MIPS_SYS(sys_setuid , 1)
1692 MIPS_SYS(sys_getuid , 0)
1693 MIPS_SYS(sys_stime , 1) /* 4025 */
1694 MIPS_SYS(sys_ptrace , 4)
1695 MIPS_SYS(sys_alarm , 1)
1696 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1697 MIPS_SYS(sys_pause , 0)
1698 MIPS_SYS(sys_utime , 2) /* 4030 */
1699 MIPS_SYS(sys_ni_syscall , 0)
1700 MIPS_SYS(sys_ni_syscall , 0)
1701 MIPS_SYS(sys_access , 2)
1702 MIPS_SYS(sys_nice , 1)
1703 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1704 MIPS_SYS(sys_sync , 0)
1705 MIPS_SYS(sys_kill , 2)
1706 MIPS_SYS(sys_rename , 2)
1707 MIPS_SYS(sys_mkdir , 2)
1708 MIPS_SYS(sys_rmdir , 1) /* 4040 */
1709 MIPS_SYS(sys_dup , 1)
1710 MIPS_SYS(sys_pipe , 0)
1711 MIPS_SYS(sys_times , 1)
1712 MIPS_SYS(sys_ni_syscall , 0)
1713 MIPS_SYS(sys_brk , 1) /* 4045 */
1714 MIPS_SYS(sys_setgid , 1)
1715 MIPS_SYS(sys_getgid , 0)
1716 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1717 MIPS_SYS(sys_geteuid , 0)
1718 MIPS_SYS(sys_getegid , 0) /* 4050 */
1719 MIPS_SYS(sys_acct , 0)
1720 MIPS_SYS(sys_umount , 2)
1721 MIPS_SYS(sys_ni_syscall , 0)
1722 MIPS_SYS(sys_ioctl , 3)
1723 MIPS_SYS(sys_fcntl , 3) /* 4055 */
1724 MIPS_SYS(sys_ni_syscall , 2)
1725 MIPS_SYS(sys_setpgid , 2)
1726 MIPS_SYS(sys_ni_syscall , 0)
1727 MIPS_SYS(sys_olduname , 1)
1728 MIPS_SYS(sys_umask , 1) /* 4060 */
1729 MIPS_SYS(sys_chroot , 1)
1730 MIPS_SYS(sys_ustat , 2)
1731 MIPS_SYS(sys_dup2 , 2)
1732 MIPS_SYS(sys_getppid , 0)
1733 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1734 MIPS_SYS(sys_setsid , 0)
1735 MIPS_SYS(sys_sigaction , 3)
1736 MIPS_SYS(sys_sgetmask , 0)
1737 MIPS_SYS(sys_ssetmask , 1)
1738 MIPS_SYS(sys_setreuid , 2) /* 4070 */
1739 MIPS_SYS(sys_setregid , 2)
1740 MIPS_SYS(sys_sigsuspend , 0)
1741 MIPS_SYS(sys_sigpending , 1)
1742 MIPS_SYS(sys_sethostname , 2)
1743 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1744 MIPS_SYS(sys_getrlimit , 2)
1745 MIPS_SYS(sys_getrusage , 2)
1746 MIPS_SYS(sys_gettimeofday, 2)
1747 MIPS_SYS(sys_settimeofday, 2)
1748 MIPS_SYS(sys_getgroups , 2) /* 4080 */
1749 MIPS_SYS(sys_setgroups , 2)
1750 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1751 MIPS_SYS(sys_symlink , 2)
1752 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1753 MIPS_SYS(sys_readlink , 3) /* 4085 */
1754 MIPS_SYS(sys_uselib , 1)
1755 MIPS_SYS(sys_swapon , 2)
1756 MIPS_SYS(sys_reboot , 3)
1757 MIPS_SYS(old_readdir , 3)
1758 MIPS_SYS(old_mmap , 6) /* 4090 */
1759 MIPS_SYS(sys_munmap , 2)
1760 MIPS_SYS(sys_truncate , 2)
1761 MIPS_SYS(sys_ftruncate , 2)
1762 MIPS_SYS(sys_fchmod , 2)
1763 MIPS_SYS(sys_fchown , 3) /* 4095 */
1764 MIPS_SYS(sys_getpriority , 2)
1765 MIPS_SYS(sys_setpriority , 3)
1766 MIPS_SYS(sys_ni_syscall , 0)
1767 MIPS_SYS(sys_statfs , 2)
1768 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1769 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1770 MIPS_SYS(sys_socketcall , 2)
1771 MIPS_SYS(sys_syslog , 3)
1772 MIPS_SYS(sys_setitimer , 3)
1773 MIPS_SYS(sys_getitimer , 2) /* 4105 */
1774 MIPS_SYS(sys_newstat , 2)
1775 MIPS_SYS(sys_newlstat , 2)
1776 MIPS_SYS(sys_newfstat , 2)
1777 MIPS_SYS(sys_uname , 1)
1778 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1779 MIPS_SYS(sys_vhangup , 0)
1780 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1781 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1782 MIPS_SYS(sys_wait4 , 4)
1783 MIPS_SYS(sys_swapoff , 1) /* 4115 */
1784 MIPS_SYS(sys_sysinfo , 1)
1785 MIPS_SYS(sys_ipc , 6)
1786 MIPS_SYS(sys_fsync , 1)
1787 MIPS_SYS(sys_sigreturn , 0)
1788 MIPS_SYS(sys_clone , 6) /* 4120 */
1789 MIPS_SYS(sys_setdomainname, 2)
1790 MIPS_SYS(sys_newuname , 1)
1791 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1792 MIPS_SYS(sys_adjtimex , 1)
1793 MIPS_SYS(sys_mprotect , 3) /* 4125 */
1794 MIPS_SYS(sys_sigprocmask , 3)
1795 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1796 MIPS_SYS(sys_init_module , 5)
1797 MIPS_SYS(sys_delete_module, 1)
1798 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1799 MIPS_SYS(sys_quotactl , 0)
1800 MIPS_SYS(sys_getpgid , 1)
1801 MIPS_SYS(sys_fchdir , 1)
1802 MIPS_SYS(sys_bdflush , 2)
1803 MIPS_SYS(sys_sysfs , 3) /* 4135 */
1804 MIPS_SYS(sys_personality , 1)
1805 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1806 MIPS_SYS(sys_setfsuid , 1)
1807 MIPS_SYS(sys_setfsgid , 1)
1808 MIPS_SYS(sys_llseek , 5) /* 4140 */
1809 MIPS_SYS(sys_getdents , 3)
1810 MIPS_SYS(sys_select , 5)
1811 MIPS_SYS(sys_flock , 2)
1812 MIPS_SYS(sys_msync , 3)
1813 MIPS_SYS(sys_readv , 3) /* 4145 */
1814 MIPS_SYS(sys_writev , 3)
1815 MIPS_SYS(sys_cacheflush , 3)
1816 MIPS_SYS(sys_cachectl , 3)
1817 MIPS_SYS(sys_sysmips , 4)
1818 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1819 MIPS_SYS(sys_getsid , 1)
1820 MIPS_SYS(sys_fdatasync , 0)
1821 MIPS_SYS(sys_sysctl , 1)
1822 MIPS_SYS(sys_mlock , 2)
1823 MIPS_SYS(sys_munlock , 2) /* 4155 */
1824 MIPS_SYS(sys_mlockall , 1)
1825 MIPS_SYS(sys_munlockall , 0)
1826 MIPS_SYS(sys_sched_setparam, 2)
1827 MIPS_SYS(sys_sched_getparam, 2)
1828 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1829 MIPS_SYS(sys_sched_getscheduler, 1)
1830 MIPS_SYS(sys_sched_yield , 0)
1831 MIPS_SYS(sys_sched_get_priority_max, 1)
1832 MIPS_SYS(sys_sched_get_priority_min, 1)
1833 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1834 MIPS_SYS(sys_nanosleep, 2)
1835 MIPS_SYS(sys_mremap , 4)
1836 MIPS_SYS(sys_accept , 3)
1837 MIPS_SYS(sys_bind , 3)
1838 MIPS_SYS(sys_connect , 3) /* 4170 */
1839 MIPS_SYS(sys_getpeername , 3)
1840 MIPS_SYS(sys_getsockname , 3)
1841 MIPS_SYS(sys_getsockopt , 5)
1842 MIPS_SYS(sys_listen , 2)
1843 MIPS_SYS(sys_recv , 4) /* 4175 */
1844 MIPS_SYS(sys_recvfrom , 6)
1845 MIPS_SYS(sys_recvmsg , 3)
1846 MIPS_SYS(sys_send , 4)
1847 MIPS_SYS(sys_sendmsg , 3)
1848 MIPS_SYS(sys_sendto , 6) /* 4180 */
1849 MIPS_SYS(sys_setsockopt , 5)
1850 MIPS_SYS(sys_shutdown , 2)
1851 MIPS_SYS(sys_socket , 3)
1852 MIPS_SYS(sys_socketpair , 4)
1853 MIPS_SYS(sys_setresuid , 3) /* 4185 */
1854 MIPS_SYS(sys_getresuid , 3)
1855 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1856 MIPS_SYS(sys_poll , 3)
1857 MIPS_SYS(sys_nfsservctl , 3)
1858 MIPS_SYS(sys_setresgid , 3) /* 4190 */
1859 MIPS_SYS(sys_getresgid , 3)
1860 MIPS_SYS(sys_prctl , 5)
1861 MIPS_SYS(sys_rt_sigreturn, 0)
1862 MIPS_SYS(sys_rt_sigaction, 4)
1863 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1864 MIPS_SYS(sys_rt_sigpending, 2)
1865 MIPS_SYS(sys_rt_sigtimedwait, 4)
1866 MIPS_SYS(sys_rt_sigqueueinfo, 3)
1867 MIPS_SYS(sys_rt_sigsuspend, 0)
1868 MIPS_SYS(sys_pread64 , 6) /* 4200 */
1869 MIPS_SYS(sys_pwrite64 , 6)
1870 MIPS_SYS(sys_chown , 3)
1871 MIPS_SYS(sys_getcwd , 2)
1872 MIPS_SYS(sys_capget , 2)
1873 MIPS_SYS(sys_capset , 2) /* 4205 */
1874 MIPS_SYS(sys_sigaltstack , 0)
1875 MIPS_SYS(sys_sendfile , 4)
1876 MIPS_SYS(sys_ni_syscall , 0)
1877 MIPS_SYS(sys_ni_syscall , 0)
1878 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
1879 MIPS_SYS(sys_truncate64 , 4)
1880 MIPS_SYS(sys_ftruncate64 , 4)
1881 MIPS_SYS(sys_stat64 , 2)
1882 MIPS_SYS(sys_lstat64 , 2)
1883 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
1884 MIPS_SYS(sys_pivot_root , 2)
1885 MIPS_SYS(sys_mincore , 3)
1886 MIPS_SYS(sys_madvise , 3)
1887 MIPS_SYS(sys_getdents64 , 3)
1888 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
1889 MIPS_SYS(sys_ni_syscall , 0)
1890 MIPS_SYS(sys_gettid , 0)
1891 MIPS_SYS(sys_readahead , 5)
1892 MIPS_SYS(sys_setxattr , 5)
1893 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
1894 MIPS_SYS(sys_fsetxattr , 5)
1895 MIPS_SYS(sys_getxattr , 4)
1896 MIPS_SYS(sys_lgetxattr , 4)
1897 MIPS_SYS(sys_fgetxattr , 4)
1898 MIPS_SYS(sys_listxattr , 3) /* 4230 */
1899 MIPS_SYS(sys_llistxattr , 3)
1900 MIPS_SYS(sys_flistxattr , 3)
1901 MIPS_SYS(sys_removexattr , 2)
1902 MIPS_SYS(sys_lremovexattr, 2)
1903 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
1904 MIPS_SYS(sys_tkill , 2)
1905 MIPS_SYS(sys_sendfile64 , 5)
1906 MIPS_SYS(sys_futex , 2)
1907 MIPS_SYS(sys_sched_setaffinity, 3)
1908 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
1909 MIPS_SYS(sys_io_setup , 2)
1910 MIPS_SYS(sys_io_destroy , 1)
1911 MIPS_SYS(sys_io_getevents, 5)
1912 MIPS_SYS(sys_io_submit , 3)
1913 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
1914 MIPS_SYS(sys_exit_group , 1)
1915 MIPS_SYS(sys_lookup_dcookie, 3)
1916 MIPS_SYS(sys_epoll_create, 1)
1917 MIPS_SYS(sys_epoll_ctl , 4)
1918 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
1919 MIPS_SYS(sys_remap_file_pages, 5)
1920 MIPS_SYS(sys_set_tid_address, 1)
1921 MIPS_SYS(sys_restart_syscall, 0)
1922 MIPS_SYS(sys_fadvise64_64, 7)
1923 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
1924 MIPS_SYS(sys_fstatfs64 , 2)
1925 MIPS_SYS(sys_timer_create, 3)
1926 MIPS_SYS(sys_timer_settime, 4)
1927 MIPS_SYS(sys_timer_gettime, 2)
1928 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
1929 MIPS_SYS(sys_timer_delete, 1)
1930 MIPS_SYS(sys_clock_settime, 2)
1931 MIPS_SYS(sys_clock_gettime, 2)
1932 MIPS_SYS(sys_clock_getres, 2)
1933 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
1934 MIPS_SYS(sys_tgkill , 3)
1935 MIPS_SYS(sys_utimes , 2)
1936 MIPS_SYS(sys_mbind , 4)
1937 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
1938 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
1939 MIPS_SYS(sys_mq_open , 4)
1940 MIPS_SYS(sys_mq_unlink , 1)
1941 MIPS_SYS(sys_mq_timedsend, 5)
1942 MIPS_SYS(sys_mq_timedreceive, 5)
1943 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
1944 MIPS_SYS(sys_mq_getsetattr, 3)
1945 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
1946 MIPS_SYS(sys_waitid , 4)
1947 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
1948 MIPS_SYS(sys_add_key , 5)
1949 MIPS_SYS(sys_request_key, 4)
1950 MIPS_SYS(sys_keyctl , 5)
1951 MIPS_SYS(sys_set_thread_area, 1)
1952 MIPS_SYS(sys_inotify_init, 0)
1953 MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
1954 MIPS_SYS(sys_inotify_rm_watch, 2)
1955 MIPS_SYS(sys_migrate_pages, 4)
1956 MIPS_SYS(sys_openat, 4)
1957 MIPS_SYS(sys_mkdirat, 3)
1958 MIPS_SYS(sys_mknodat, 4) /* 4290 */
1959 MIPS_SYS(sys_fchownat, 5)
1960 MIPS_SYS(sys_futimesat, 3)
1961 MIPS_SYS(sys_fstatat64, 4)
1962 MIPS_SYS(sys_unlinkat, 3)
1963 MIPS_SYS(sys_renameat, 4) /* 4295 */
1964 MIPS_SYS(sys_linkat, 5)
1965 MIPS_SYS(sys_symlinkat, 3)
1966 MIPS_SYS(sys_readlinkat, 4)
1967 MIPS_SYS(sys_fchmodat, 3)
1968 MIPS_SYS(sys_faccessat, 3) /* 4300 */
1969 MIPS_SYS(sys_pselect6, 6)
1970 MIPS_SYS(sys_ppoll, 5)
1971 MIPS_SYS(sys_unshare, 1)
1972 MIPS_SYS(sys_splice, 4)
1973 MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
1974 MIPS_SYS(sys_tee, 4)
1975 MIPS_SYS(sys_vmsplice, 4)
1976 MIPS_SYS(sys_move_pages, 6)
1977 MIPS_SYS(sys_set_robust_list, 2)
1978 MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
1979 MIPS_SYS(sys_kexec_load, 4)
1980 MIPS_SYS(sys_getcpu, 3)
1981 MIPS_SYS(sys_epoll_pwait, 6)
1982 MIPS_SYS(sys_ioprio_set, 3)
1983 MIPS_SYS(sys_ioprio_get, 2)
1984 };
1985
1986 #undef MIPS_SYS
1987
1988 static int do_store_exclusive(CPUMIPSState *env)
1989 {
1990 target_ulong addr;
1991 target_ulong page_addr;
1992 target_ulong val;
1993 int flags;
1994 int segv = 0;
1995 int reg;
1996 int d;
1997
1998 addr = env->lladdr;
1999 page_addr = addr & TARGET_PAGE_MASK;
2000 start_exclusive();
2001 mmap_lock();
2002 flags = page_get_flags(page_addr);
2003 if ((flags & PAGE_READ) == 0) {
2004 segv = 1;
2005 } else {
2006 reg = env->llreg & 0x1f;
2007 d = (env->llreg & 0x20) != 0;
2008 if (d) {
2009 segv = get_user_s64(val, addr);
2010 } else {
2011 segv = get_user_s32(val, addr);
2012 }
2013 if (!segv) {
2014 if (val != env->llval) {
2015 env->active_tc.gpr[reg] = 0;
2016 } else {
2017 if (d) {
2018 segv = put_user_u64(env->llnewval, addr);
2019 } else {
2020 segv = put_user_u32(env->llnewval, addr);
2021 }
2022 if (!segv) {
2023 env->active_tc.gpr[reg] = 1;
2024 }
2025 }
2026 }
2027 }
2028 env->lladdr = -1;
2029 if (!segv) {
2030 env->active_tc.PC += 4;
2031 }
2032 mmap_unlock();
2033 end_exclusive();
2034 return segv;
2035 }
2036
2037 void cpu_loop(CPUMIPSState *env)
2038 {
2039 target_siginfo_t info;
2040 int trapnr, ret;
2041 unsigned int syscall_num;
2042
2043 for(;;) {
2044 cpu_exec_start(env);
2045 trapnr = cpu_mips_exec(env);
2046 cpu_exec_end(env);
2047 switch(trapnr) {
2048 case EXCP_SYSCALL:
2049 syscall_num = env->active_tc.gpr[2] - 4000;
2050 env->active_tc.PC += 4;
2051 if (syscall_num >= sizeof(mips_syscall_args)) {
2052 ret = -ENOSYS;
2053 } else {
2054 int nb_args;
2055 abi_ulong sp_reg;
2056 abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
2057
2058 nb_args = mips_syscall_args[syscall_num];
2059 sp_reg = env->active_tc.gpr[29];
2060 switch (nb_args) {
2061 /* these arguments are taken from the stack */
2062 /* FIXME - what to do if get_user() fails? */
2063 case 8: get_user_ual(arg8, sp_reg + 28);
2064 case 7: get_user_ual(arg7, sp_reg + 24);
2065 case 6: get_user_ual(arg6, sp_reg + 20);
2066 case 5: get_user_ual(arg5, sp_reg + 16);
2067 default:
2068 break;
2069 }
2070 ret = do_syscall(env, env->active_tc.gpr[2],
2071 env->active_tc.gpr[4],
2072 env->active_tc.gpr[5],
2073 env->active_tc.gpr[6],
2074 env->active_tc.gpr[7],
2075 arg5, arg6/*, arg7, arg8*/);
2076 }
2077 if (ret == -TARGET_QEMU_ESIGRETURN) {
2078 /* Returning from a successful sigreturn syscall.
2079 Avoid clobbering register state. */
2080 break;
2081 }
2082 if ((unsigned int)ret >= (unsigned int)(-1133)) {
2083 env->active_tc.gpr[7] = 1; /* error flag */
2084 ret = -ret;
2085 } else {
2086 env->active_tc.gpr[7] = 0; /* error flag */
2087 }
2088 env->active_tc.gpr[2] = ret;
2089 break;
2090 case EXCP_TLBL:
2091 case EXCP_TLBS:
2092 info.si_signo = TARGET_SIGSEGV;
2093 info.si_errno = 0;
2094 /* XXX: check env->error_code */
2095 info.si_code = TARGET_SEGV_MAPERR;
2096 info._sifields._sigfault._addr = env->CP0_BadVAddr;
2097 queue_signal(env, info.si_signo, &info);
2098 break;
2099 case EXCP_CpU:
2100 case EXCP_RI:
2101 info.si_signo = TARGET_SIGILL;
2102 info.si_errno = 0;
2103 info.si_code = 0;
2104 queue_signal(env, info.si_signo, &info);
2105 break;
2106 case EXCP_INTERRUPT:
2107 /* just indicate that signals should be handled asap */
2108 break;
2109 case EXCP_DEBUG:
2110 {
2111 int sig;
2112
2113 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2114 if (sig)
2115 {
2116 info.si_signo = sig;
2117 info.si_errno = 0;
2118 info.si_code = TARGET_TRAP_BRKPT;
2119 queue_signal(env, info.si_signo, &info);
2120 }
2121 }
2122 break;
2123 case EXCP_SC:
2124 if (do_store_exclusive(env)) {
2125 info.si_signo = TARGET_SIGSEGV;
2126 info.si_errno = 0;
2127 info.si_code = TARGET_SEGV_MAPERR;
2128 info._sifields._sigfault._addr = env->active_tc.PC;
2129 queue_signal(env, info.si_signo, &info);
2130 }
2131 break;
2132 default:
2133 // error:
2134 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
2135 trapnr);
2136 cpu_dump_state(env, stderr, fprintf, 0);
2137 abort();
2138 }
2139 process_pending_signals(env);
2140 }
2141 }
2142 #endif
2143
2144 #ifdef TARGET_SH4
2145 void cpu_loop (CPUState *env)
2146 {
2147 int trapnr, ret;
2148 target_siginfo_t info;
2149
2150 while (1) {
2151 trapnr = cpu_sh4_exec (env);
2152
2153 switch (trapnr) {
2154 case 0x160:
2155 env->pc += 2;
2156 ret = do_syscall(env,
2157 env->gregs[3],
2158 env->gregs[4],
2159 env->gregs[5],
2160 env->gregs[6],
2161 env->gregs[7],
2162 env->gregs[0],
2163 env->gregs[1]);
2164 env->gregs[0] = ret;
2165 break;
2166 case EXCP_INTERRUPT:
2167 /* just indicate that signals should be handled asap */
2168 break;
2169 case EXCP_DEBUG:
2170 {
2171 int sig;
2172
2173 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2174 if (sig)
2175 {
2176 info.si_signo = sig;
2177 info.si_errno = 0;
2178 info.si_code = TARGET_TRAP_BRKPT;
2179 queue_signal(env, info.si_signo, &info);
2180 }
2181 }
2182 break;
2183 case 0xa0:
2184 case 0xc0:
2185 info.si_signo = SIGSEGV;
2186 info.si_errno = 0;
2187 info.si_code = TARGET_SEGV_MAPERR;
2188 info._sifields._sigfault._addr = env->tea;
2189 queue_signal(env, info.si_signo, &info);
2190 break;
2191
2192 default:
2193 printf ("Unhandled trap: 0x%x\n", trapnr);
2194 cpu_dump_state(env, stderr, fprintf, 0);
2195 exit (1);
2196 }
2197 process_pending_signals (env);
2198 }
2199 }
2200 #endif
2201
2202 #ifdef TARGET_CRIS
2203 void cpu_loop (CPUState *env)
2204 {
2205 int trapnr, ret;
2206 target_siginfo_t info;
2207
2208 while (1) {
2209 trapnr = cpu_cris_exec (env);
2210 switch (trapnr) {
2211 case 0xaa:
2212 {
2213 info.si_signo = SIGSEGV;
2214 info.si_errno = 0;
2215 /* XXX: check env->error_code */
2216 info.si_code = TARGET_SEGV_MAPERR;
2217 info._sifields._sigfault._addr = env->pregs[PR_EDA];
2218 queue_signal(env, info.si_signo, &info);
2219 }
2220 break;
2221 case EXCP_INTERRUPT:
2222 /* just indicate that signals should be handled asap */
2223 break;
2224 case EXCP_BREAK:
2225 ret = do_syscall(env,
2226 env->regs[9],
2227 env->regs[10],
2228 env->regs[11],
2229 env->regs[12],
2230 env->regs[13],
2231 env->pregs[7],
2232 env->pregs[11]);
2233 env->regs[10] = ret;
2234 break;
2235 case EXCP_DEBUG:
2236 {
2237 int sig;
2238
2239 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2240 if (sig)
2241 {
2242 info.si_signo = sig;
2243 info.si_errno = 0;
2244 info.si_code = TARGET_TRAP_BRKPT;
2245 queue_signal(env, info.si_signo, &info);
2246 }
2247 }
2248 break;
2249 default:
2250 printf ("Unhandled trap: 0x%x\n", trapnr);
2251 cpu_dump_state(env, stderr, fprintf, 0);
2252 exit (1);
2253 }
2254 process_pending_signals (env);
2255 }
2256 }
2257 #endif
2258
2259 #ifdef TARGET_MICROBLAZE
2260 void cpu_loop (CPUState *env)
2261 {
2262 int trapnr, ret;
2263 target_siginfo_t info;
2264
2265 while (1) {
2266 trapnr = cpu_mb_exec (env);
2267 switch (trapnr) {
2268 case 0xaa:
2269 {
2270 info.si_signo = SIGSEGV;
2271 info.si_errno = 0;
2272 /* XXX: check env->error_code */
2273 info.si_code = TARGET_SEGV_MAPERR;
2274 info._sifields._sigfault._addr = 0;
2275 queue_signal(env, info.si_signo, &info);
2276 }
2277 break;
2278 case EXCP_INTERRUPT:
2279 /* just indicate that signals should be handled asap */
2280 break;
2281 case EXCP_BREAK:
2282 /* Return address is 4 bytes after the call. */
2283 env->regs[14] += 4;
2284 ret = do_syscall(env,
2285 env->regs[12],
2286 env->regs[5],
2287 env->regs[6],
2288 env->regs[7],
2289 env->regs[8],
2290 env->regs[9],
2291 env->regs[10]);
2292 env->regs[3] = ret;
2293 env->sregs[SR_PC] = env->regs[14];
2294 break;
2295 case EXCP_HW_EXCP:
2296 env->regs[17] = env->sregs[SR_PC] + 4;
2297 if (env->iflags & D_FLAG) {
2298 env->sregs[SR_ESR] |= 1 << 12;
2299 env->sregs[SR_PC] -= 4;
2300 /* FIXME: if branch was immed, replay the imm aswell. */
2301 }
2302
2303 env->iflags &= ~(IMM_FLAG | D_FLAG);
2304
2305 switch (env->sregs[SR_ESR] & 31) {
2306 case ESR_EC_FPU:
2307 info.si_signo = SIGFPE;
2308 info.si_errno = 0;
2309 if (env->sregs[SR_FSR] & FSR_IO) {
2310 info.si_code = TARGET_FPE_FLTINV;
2311 }
2312 if (env->sregs[SR_FSR] & FSR_DZ) {
2313 info.si_code = TARGET_FPE_FLTDIV;
2314 }
2315 info._sifields._sigfault._addr = 0;
2316 queue_signal(env, info.si_signo, &info);
2317 break;
2318 default:
2319 printf ("Unhandled hw-exception: 0x%x\n",
2320 env->sregs[SR_ESR] & ESR_EC_MASK);
2321 cpu_dump_state(env, stderr, fprintf, 0);
2322 exit (1);
2323 break;
2324 }
2325 break;
2326 case EXCP_DEBUG:
2327 {
2328 int sig;
2329
2330 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2331 if (sig)
2332 {
2333 info.si_signo = sig;
2334 info.si_errno = 0;
2335 info.si_code = TARGET_TRAP_BRKPT;
2336 queue_signal(env, info.si_signo, &info);
2337 }
2338 }
2339 break;
2340 default:
2341 printf ("Unhandled trap: 0x%x\n", trapnr);
2342 cpu_dump_state(env, stderr, fprintf, 0);
2343 exit (1);
2344 }
2345 process_pending_signals (env);
2346 }
2347 }
2348 #endif
2349
2350 #ifdef TARGET_M68K
2351
2352 void cpu_loop(CPUM68KState *env)
2353 {
2354 int trapnr;
2355 unsigned int n;
2356 target_siginfo_t info;
2357 TaskState *ts = env->opaque;
2358
2359 for(;;) {
2360 trapnr = cpu_m68k_exec(env);
2361 switch(trapnr) {
2362 case EXCP_ILLEGAL:
2363 {
2364 if (ts->sim_syscalls) {
2365 uint16_t nr;
2366 nr = lduw(env->pc + 2);
2367 env->pc += 4;
2368 do_m68k_simcall(env, nr);
2369 } else {
2370 goto do_sigill;
2371 }
2372 }
2373 break;
2374 case EXCP_HALT_INSN:
2375 /* Semihosing syscall. */
2376 env->pc += 4;
2377 do_m68k_semihosting(env, env->dregs[0]);
2378 break;
2379 case EXCP_LINEA:
2380 case EXCP_LINEF:
2381 case EXCP_UNSUPPORTED:
2382 do_sigill:
2383 info.si_signo = SIGILL;
2384 info.si_errno = 0;
2385 info.si_code = TARGET_ILL_ILLOPN;
2386 info._sifields._sigfault._addr = env->pc;
2387 queue_signal(env, info.si_signo, &info);
2388 break;
2389 case EXCP_TRAP0:
2390 {
2391 ts->sim_syscalls = 0;
2392 n = env->dregs[0];
2393 env->pc += 2;
2394 env->dregs[0] = do_syscall(env,
2395 n,
2396 env->dregs[1],
2397 env->dregs[2],
2398 env->dregs[3],
2399 env->dregs[4],
2400 env->dregs[5],
2401 env->aregs[0]);
2402 }
2403 break;
2404 case EXCP_INTERRUPT:
2405 /* just indicate that signals should be handled asap */
2406 break;
2407 case EXCP_ACCESS:
2408 {
2409 info.si_signo = SIGSEGV;
2410 info.si_errno = 0;
2411 /* XXX: check env->error_code */
2412 info.si_code = TARGET_SEGV_MAPERR;
2413 info._sifields._sigfault._addr = env->mmu.ar;
2414 queue_signal(env, info.si_signo, &info);
2415 }
2416 break;
2417 case EXCP_DEBUG:
2418 {
2419 int sig;
2420
2421 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2422 if (sig)
2423 {
2424 info.si_signo = sig;
2425 info.si_errno = 0;
2426 info.si_code = TARGET_TRAP_BRKPT;
2427 queue_signal(env, info.si_signo, &info);
2428 }
2429 }
2430 break;
2431 default:
2432 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
2433 trapnr);
2434 cpu_dump_state(env, stderr, fprintf, 0);
2435 abort();
2436 }
2437 process_pending_signals(env);
2438 }
2439 }
2440 #endif /* TARGET_M68K */
2441
2442 #ifdef TARGET_ALPHA
2443 static void do_store_exclusive(CPUAlphaState *env, int reg, int quad)
2444 {
2445 target_ulong addr, val, tmp;
2446 target_siginfo_t info;
2447 int ret = 0;
2448
2449 addr = env->lock_addr;
2450 tmp = env->lock_st_addr;
2451 env->lock_addr = -1;
2452 env->lock_st_addr = 0;
2453
2454 start_exclusive();
2455 mmap_lock();
2456
2457 if (addr == tmp) {
2458 if (quad ? get_user_s64(val, addr) : get_user_s32(val, addr)) {
2459 goto do_sigsegv;
2460 }
2461
2462 if (val == env->lock_value) {
2463 tmp = env->ir[reg];
2464 if (quad ? put_user_u64(tmp, addr) : put_user_u32(tmp, addr)) {
2465 goto do_sigsegv;
2466 }
2467 ret = 1;
2468 }
2469 }
2470 env->ir[reg] = ret;
2471 env->pc += 4;
2472
2473 mmap_unlock();
2474 end_exclusive();
2475 return;
2476
2477 do_sigsegv:
2478 mmap_unlock();
2479 end_exclusive();
2480
2481 info.si_signo = TARGET_SIGSEGV;
2482 info.si_errno = 0;
2483 info.si_code = TARGET_SEGV_MAPERR;
2484 info._sifields._sigfault._addr = addr;
2485 queue_signal(env, TARGET_SIGSEGV, &info);
2486 }
2487
2488 void cpu_loop (CPUState *env)
2489 {
2490 int trapnr;
2491 target_siginfo_t info;
2492 abi_long sysret;
2493
2494 while (1) {
2495 trapnr = cpu_alpha_exec (env);
2496
2497 /* All of the traps imply a transition through PALcode, which
2498 implies an REI instruction has been executed. Which means
2499 that the intr_flag should be cleared. */
2500 env->intr_flag = 0;
2501
2502 switch (trapnr) {
2503 case EXCP_RESET:
2504 fprintf(stderr, "Reset requested. Exit\n");
2505 exit(1);
2506 break;
2507 case EXCP_MCHK:
2508 fprintf(stderr, "Machine check exception. Exit\n");
2509 exit(1);
2510 break;
2511 case EXCP_ARITH:
2512 env->lock_addr = -1;
2513 info.si_signo = TARGET_SIGFPE;
2514 info.si_errno = 0;
2515 info.si_code = TARGET_FPE_FLTINV;
2516 info._sifields._sigfault._addr = env->pc;
2517 queue_signal(env, info.si_signo, &info);
2518 break;
2519 case EXCP_HW_INTERRUPT:
2520 fprintf(stderr, "External interrupt. Exit\n");
2521 exit(1);
2522 break;
2523 case EXCP_DFAULT:
2524 env->lock_addr = -1;
2525 info.si_signo = TARGET_SIGSEGV;
2526 info.si_errno = 0;
2527 info.si_code = (page_get_flags(env->ipr[IPR_EXC_ADDR]) & PAGE_VALID
2528 ? TARGET_SEGV_ACCERR : TARGET_SEGV_MAPERR);
2529 info._sifields._sigfault._addr = env->ipr[IPR_EXC_ADDR];
2530 queue_signal(env, info.si_signo, &info);
2531 break;
2532 case EXCP_DTB_MISS_PAL:
2533 fprintf(stderr, "MMU data TLB miss in PALcode\n");
2534 exit(1);
2535 break;
2536 case EXCP_ITB_MISS:
2537 fprintf(stderr, "MMU instruction TLB miss\n");
2538 exit(1);
2539 break;
2540 case EXCP_ITB_ACV:
2541 fprintf(stderr, "MMU instruction access violation\n");
2542 exit(1);
2543 break;
2544 case EXCP_DTB_MISS_NATIVE:
2545 fprintf(stderr, "MMU data TLB miss\n");
2546 exit(1);
2547 break;
2548 case EXCP_UNALIGN:
2549 env->lock_addr = -1;
2550 info.si_signo = TARGET_SIGBUS;
2551 info.si_errno = 0;
2552 info.si_code = TARGET_BUS_ADRALN;
2553 info._sifields._sigfault._addr = env->ipr[IPR_EXC_ADDR];
2554 queue_signal(env, info.si_signo, &info);
2555 break;
2556 case EXCP_OPCDEC:
2557 do_sigill:
2558 env->lock_addr = -1;
2559 info.si_signo = TARGET_SIGILL;
2560 info.si_errno = 0;
2561 info.si_code = TARGET_ILL_ILLOPC;
2562 info._sifields._sigfault._addr = env->pc;
2563 queue_signal(env, info.si_signo, &info);
2564 break;
2565 case EXCP_FEN:
2566 /* No-op. Linux simply re-enables the FPU. */
2567 break;
2568 case EXCP_CALL_PAL ... (EXCP_CALL_PALP - 1):
2569 env->lock_addr = -1;
2570 switch ((trapnr >> 6) | 0x80) {
2571 case 0x80:
2572 /* BPT */
2573 info.si_signo = TARGET_SIGTRAP;
2574 info.si_errno = 0;
2575 info.si_code = TARGET_TRAP_BRKPT;
2576 info._sifields._sigfault._addr = env->pc;
2577 queue_signal(env, info.si_signo, &info);
2578 break;
2579 case 0x81:
2580 /* BUGCHK */
2581 info.si_signo = TARGET_SIGTRAP;
2582 info.si_errno = 0;
2583 info.si_code = 0;
2584 info._sifields._sigfault._addr = env->pc;
2585 queue_signal(env, info.si_signo, &info);
2586 break;
2587 case 0x83:
2588 /* CALLSYS */
2589 trapnr = env->ir[IR_V0];
2590 sysret = do_syscall(env, trapnr,
2591 env->ir[IR_A0], env->ir[IR_A1],
2592 env->ir[IR_A2], env->ir[IR_A3],
2593 env->ir[IR_A4], env->ir[IR_A5]);
2594 if (trapnr == TARGET_NR_sigreturn
2595 || trapnr == TARGET_NR_rt_sigreturn) {
2596 break;
2597 }
2598 /* Syscall writes 0 to V0 to bypass error check, similar
2599 to how this is handled internal to Linux kernel. */
2600 if (env->ir[IR_V0] == 0) {
2601 env->ir[IR_V0] = sysret;
2602 } else {
2603 env->ir[IR_V0] = (sysret < 0 ? -sysret : sysret);
2604 env->ir[IR_A3] = (sysret < 0);
2605 }
2606 break;
2607 case 0x86:
2608 /* IMB */
2609 /* ??? We can probably elide the code using page_unprotect
2610 that is checking for self-modifying code. Instead we
2611 could simply call tb_flush here. Until we work out the
2612 changes required to turn off the extra write protection,
2613 this can be a no-op. */
2614 break;
2615 case 0x9E:
2616 /* RDUNIQUE */
2617 /* Handled in the translator for usermode. */
2618 abort();
2619 case 0x9F:
2620 /* WRUNIQUE */
2621 /* Handled in the translator for usermode. */
2622 abort();
2623 case 0xAA:
2624 /* GENTRAP */
2625 info.si_signo = TARGET_SIGFPE;
2626 switch (env->ir[IR_A0]) {
2627 case TARGET_GEN_INTOVF:
2628 info.si_code = TARGET_FPE_INTOVF;
2629 break;
2630 case TARGET_GEN_INTDIV:
2631 info.si_code = TARGET_FPE_INTDIV;
2632 break;
2633 case TARGET_GEN_FLTOVF:
2634 info.si_code = TARGET_FPE_FLTOVF;
2635 break;
2636 case TARGET_GEN_FLTUND:
2637 info.si_code = TARGET_FPE_FLTUND;
2638 break;
2639 case TARGET_GEN_FLTINV:
2640 info.si_code = TARGET_FPE_FLTINV;
2641 break;
2642 case TARGET_GEN_FLTINE:
2643 info.si_code = TARGET_FPE_FLTRES;
2644 break;
2645 case TARGET_GEN_ROPRAND:
2646 info.si_code = 0;
2647 break;
2648 default:
2649 info.si_signo = TARGET_SIGTRAP;
2650 info.si_code = 0;
2651 break;
2652 }
2653 info.si_errno = 0;
2654 info._sifields._sigfault._addr = env->pc;
2655 queue_signal(env, info.si_signo, &info);
2656 break;
2657 default:
2658 goto do_sigill;
2659 }
2660 break;
2661 case EXCP_CALL_PALP ... (EXCP_CALL_PALE - 1):
2662 goto do_sigill;
2663 case EXCP_DEBUG:
2664 info.si_signo = gdb_handlesig (env, TARGET_SIGTRAP);
2665 if (info.si_signo) {
2666 env->lock_addr = -1;
2667 info.si_errno = 0;
2668 info.si_code = TARGET_TRAP_BRKPT;
2669 queue_signal(env, info.si_signo, &info);
2670 }
2671 break;
2672 case EXCP_STL_C:
2673 case EXCP_STQ_C:
2674 do_store_exclusive(env, env->error_code, trapnr - EXCP_STL_C);
2675 break;
2676 default:
2677 printf ("Unhandled trap: 0x%x\n", trapnr);
2678 cpu_dump_state(env, stderr, fprintf, 0);
2679 exit (1);
2680 }
2681 process_pending_signals (env);
2682 }
2683 }
2684 #endif /* TARGET_ALPHA */
2685
2686 #ifdef TARGET_S390X
2687 void cpu_loop(CPUS390XState *env)
2688 {
2689 int trapnr;
2690 target_siginfo_t info;
2691
2692 while (1) {
2693 trapnr = cpu_s390x_exec (env);
2694
2695 switch (trapnr) {
2696 case EXCP_INTERRUPT:
2697 /* just indicate that signals should be handled asap */
2698 break;
2699 case EXCP_DEBUG:
2700 {
2701 int sig;
2702
2703 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2704 if (sig) {
2705 info.si_signo = sig;
2706 info.si_errno = 0;
2707 info.si_code = TARGET_TRAP_BRKPT;
2708 queue_signal(env, info.si_signo, &info);
2709 }
2710 }
2711 break;
2712 case EXCP_SVC:
2713 {
2714 int n = env->int_svc_code;
2715 if (!n) {
2716 /* syscalls > 255 */
2717 n = env->regs[1];
2718 }
2719 env->psw.addr += env->int_svc_ilc;
2720 env->regs[2] = do_syscall(env, n,
2721 env->regs[2],
2722 env->regs[3],
2723 env->regs[4],
2724 env->regs[5],
2725 env->regs[6],
2726 env->regs[7]);
2727 }
2728 break;
2729 case EXCP_ADDR:
2730 {
2731 info.si_signo = SIGSEGV;
2732 info.si_errno = 0;
2733 /* XXX: check env->error_code */
2734 info.si_code = TARGET_SEGV_MAPERR;
2735 info._sifields._sigfault._addr = env->__excp_addr;
2736 queue_signal(env, info.si_signo, &info);
2737 }
2738 break;
2739 case EXCP_SPEC:
2740 {
2741 fprintf(stderr,"specification exception insn 0x%08x%04x\n", ldl(env->psw.addr), lduw(env->psw.addr + 4));
2742 info.si_signo = SIGILL;
2743 info.si_errno = 0;
2744 info.si_code = TARGET_ILL_ILLOPC;
2745 info._sifields._sigfault._addr = env->__excp_addr;
2746 queue_signal(env, info.si_signo, &info);
2747 }
2748 break;
2749 default:
2750 printf ("Unhandled trap: 0x%x\n", trapnr);
2751 cpu_dump_state(env, stderr, fprintf, 0);
2752 exit (1);
2753 }
2754 process_pending_signals (env);
2755 }
2756 }
2757
2758 #endif /* TARGET_S390X */
2759
2760 static void version(void)
2761 {
2762 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION QEMU_PKGVERSION
2763 ", Copyright (c) 2003-2008 Fabrice Bellard\n");
2764 }
2765
2766 static void usage(void)
2767 {
2768 version();
2769 printf("usage: qemu-" TARGET_ARCH " [options] program [arguments...]\n"
2770 "Linux CPU emulator (compiled for %s emulation)\n"
2771 "\n"
2772 "Standard options:\n"
2773 "-h print this help\n"
2774 "-version display version information and exit\n"
2775 "-g port wait gdb connection to port\n"
2776 "-L path set the elf interpreter prefix (default=%s)\n"
2777 "-s size set the stack size in bytes (default=%ld)\n"
2778 "-cpu model select CPU (-cpu ? for list)\n"
2779 "-drop-ld-preload drop LD_PRELOAD for target process\n"
2780 "-E var=value sets/modifies targets environment variable(s)\n"
2781 "-U var unsets targets environment variable(s)\n"
2782 "-0 argv0 forces target process argv[0] to be argv0\n"
2783 #if defined(CONFIG_USE_GUEST_BASE)
2784 "-B address set guest_base address to address\n"
2785 "-R size reserve size bytes for guest virtual address space\n"
2786 #endif
2787 "\n"
2788 "Debug options:\n"
2789 "-d options activate log (logfile=%s)\n"
2790 "-p pagesize set the host page size to 'pagesize'\n"
2791 "-singlestep always run in singlestep mode\n"
2792 "-strace log system calls\n"
2793 "\n"
2794 "Environment variables:\n"
2795 "QEMU_STRACE Print system calls and arguments similar to the\n"
2796 " 'strace' program. Enable by setting to any value.\n"
2797 "You can use -E and -U options to set/unset environment variables\n"
2798 "for target process. It is possible to provide several variables\n"
2799 "by repeating the option. For example:\n"
2800 " -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n"
2801 "Note that if you provide several changes to single variable\n"
2802 "last change will stay in effect.\n"
2803 ,
2804 TARGET_ARCH,
2805 interp_prefix,
2806 guest_stack_size,
2807 DEBUG_LOGFILE);
2808 exit(1);
2809 }
2810
2811 THREAD CPUState *thread_env;
2812
2813 void task_settid(TaskState *ts)
2814 {
2815 if (ts->ts_tid == 0) {
2816 #ifdef CONFIG_USE_NPTL
2817 ts->ts_tid = (pid_t)syscall(SYS_gettid);
2818 #else
2819 /* when no threads are used, tid becomes pid */
2820 ts->ts_tid = getpid();
2821 #endif
2822 }
2823 }
2824
2825 void stop_all_tasks(void)
2826 {
2827 /*
2828 * We trust that when using NPTL, start_exclusive()
2829 * handles thread stopping correctly.
2830 */
2831 start_exclusive();
2832 }
2833
2834 /* Assumes contents are already zeroed. */
2835 void init_task_state(TaskState *ts)
2836 {
2837 int i;
2838
2839 ts->used = 1;
2840 ts->first_free = ts->sigqueue_table;
2841 for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) {
2842 ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1];
2843 }
2844 ts->sigqueue_table[i].next = NULL;
2845 }
2846
2847 int main(int argc, char **argv, char **envp)
2848 {
2849 const char *filename;
2850 const char *cpu_model;
2851 struct target_pt_regs regs1, *regs = &regs1;
2852 struct image_info info1, *info = &info1;
2853 struct linux_binprm bprm;
2854 TaskState *ts;
2855 CPUState *env;
2856 int optind;
2857 const char *r;
2858 int gdbstub_port = 0;
2859 char **target_environ, **wrk;
2860 char **target_argv;
2861 int target_argc;
2862 envlist_t *envlist = NULL;
2863 const char *argv0 = NULL;
2864 int i;
2865 int ret;
2866
2867 if (argc <= 1)
2868 usage();
2869
2870 qemu_cache_utils_init(envp);
2871
2872 /* init debug */
2873 cpu_set_log_filename(DEBUG_LOGFILE);
2874
2875 if ((envlist = envlist_create()) == NULL) {
2876 (void) fprintf(stderr, "Unable to allocate envlist\n");
2877 exit(1);
2878 }
2879
2880 /* add current environment into the list */
2881 for (wrk = environ; *wrk != NULL; wrk++) {
2882 (void) envlist_setenv(envlist, *wrk);
2883 }
2884
2885 /* Read the stack limit from the kernel. If it's "unlimited",
2886 then we can do little else besides use the default. */
2887 {
2888 struct rlimit lim;
2889 if (getrlimit(RLIMIT_STACK, &lim) == 0
2890 && lim.rlim_cur != RLIM_INFINITY
2891 && lim.rlim_cur == (target_long)lim.rlim_cur) {
2892 guest_stack_size = lim.rlim_cur;
2893 }
2894 }
2895
2896 cpu_model = NULL;
2897 #if defined(cpudef_setup)
2898 cpudef_setup(); /* parse cpu definitions in target config file (TBD) */
2899 #endif
2900
2901 optind = 1;
2902 for(;;) {
2903 if (optind >= argc)
2904 break;
2905 r = argv[optind];
2906 if (r[0] != '-')
2907 break;
2908 optind++;
2909 r++;
2910 if (!strcmp(r, "-")) {
2911 break;
2912 } else if (!strcmp(r, "d")) {
2913 int mask;
2914 const CPULogItem *item;
2915
2916 if (optind >= argc)
2917 break;
2918
2919 r = argv[optind++];
2920 mask = cpu_str_to_log_mask(r);
2921 if (!mask) {
2922 printf("Log items (comma separated):\n");
2923 for(item = cpu_log_items; item->mask != 0; item++) {
2924 printf("%-10s %s\n", item->name, item->help);
2925 }
2926 exit(1);
2927 }
2928 cpu_set_log(mask);
2929 } else if (!strcmp(r, "E")) {
2930 r = argv[optind++];
2931 if (envlist_setenv(envlist, r) != 0)
2932 usage();
2933 } else if (!strcmp(r, "ignore-environment")) {
2934 envlist_free(envlist);
2935 if ((envlist = envlist_create()) == NULL) {
2936 (void) fprintf(stderr, "Unable to allocate envlist\n");
2937 exit(1);
2938 }
2939 } else if (!strcmp(r, "U")) {
2940 r = argv[optind++];
2941 if (envlist_unsetenv(envlist, r) != 0)
2942 usage();
2943 } else if (!strcmp(r, "0")) {
2944 r = argv[optind++];
2945 argv0 = r;
2946 } else if (!strcmp(r, "s")) {
2947 if (optind >= argc)
2948 break;
2949 r = argv[optind++];
2950 guest_stack_size = strtoul(r, (char **)&r, 0);
2951 if (guest_stack_size == 0)
2952 usage();
2953 if (*r == 'M')
2954 guest_stack_size *= 1024 * 1024;
2955 else if (*r == 'k' || *r == 'K')
2956 guest_stack_size *= 1024;
2957 } else if (!strcmp(r, "L")) {
2958 interp_prefix = argv[optind++];
2959 } else if (!strcmp(r, "p")) {
2960 if (optind >= argc)
2961 break;
2962 qemu_host_page_size = atoi(argv[optind++]);
2963 if (qemu_host_page_size == 0 ||
2964 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
2965 fprintf(stderr, "page size must be a power of two\n");
2966 exit(1);
2967 }
2968 } else if (!strcmp(r, "g")) {
2969 if (optind >= argc)
2970 break;
2971 gdbstub_port = atoi(argv[optind++]);
2972 } else if (!strcmp(r, "r")) {
2973 qemu_uname_release = argv[optind++];
2974 } else if (!strcmp(r, "cpu")) {
2975 cpu_model = argv[optind++];
2976 if (cpu_model == NULL || strcmp(cpu_model, "?") == 0) {
2977 /* XXX: implement xxx_cpu_list for targets that still miss it */
2978 #if defined(cpu_list_id)
2979 cpu_list_id(stdout, &fprintf, "");
2980 #elif defined(cpu_list)
2981 cpu_list(stdout, &fprintf); /* deprecated */
2982 #endif
2983 exit(1);
2984 }
2985 #if defined(CONFIG_USE_GUEST_BASE)
2986 } else if (!strcmp(r, "B")) {
2987 guest_base = strtol(argv[optind++], NULL, 0);
2988 have_guest_base = 1;
2989 } else if (!strcmp(r, "R")) {
2990 char *p;
2991 int shift = 0;
2992 reserved_va = strtoul(argv[optind++], &p, 0);
2993 switch (*p) {
2994 case 'k':
2995 case 'K':
2996 shift = 10;
2997 break;
2998 case 'M':
2999 shift = 20;
3000 break;
3001 case 'G':
3002 shift = 30;
3003 break;
3004 }
3005 if (shift) {
3006 unsigned long unshifted = reserved_va;
3007 p++;
3008 reserved_va <<= shift;
3009 if (((reserved_va >> shift) != unshifted)
3010 #if HOST_LONG_BITS > TARGET_VIRT_ADDR_SPACE_BITS
3011 || (reserved_va > (1ul << TARGET_VIRT_ADDR_SPACE_BITS))
3012 #endif
3013 ) {
3014 fprintf(stderr, "Reserved virtual address too big\n");
3015 exit(1);
3016 }
3017 }
3018 if (*p) {
3019 fprintf(stderr, "Unrecognised -R size suffix '%s'\n", p);
3020 exit(1);
3021 }
3022 #endif
3023 } else if (!strcmp(r, "drop-ld-preload")) {
3024 (void) envlist_unsetenv(envlist, "LD_PRELOAD");
3025 } else if (!strcmp(r, "singlestep")) {
3026 singlestep = 1;
3027 } else if (!strcmp(r, "strace")) {
3028 do_strace = 1;
3029 } else if (!strcmp(r, "version")) {
3030 version();
3031 exit(0);
3032 } else {
3033 usage();
3034 }
3035 }
3036 if (optind >= argc)
3037 usage();
3038 filename = argv[optind];
3039 exec_path = argv[optind];
3040
3041 /* Zero out regs */
3042 memset(regs, 0, sizeof(struct target_pt_regs));
3043
3044 /* Zero out image_info */
3045 memset(info, 0, sizeof(struct image_info));
3046
3047 memset(&bprm, 0, sizeof (bprm));
3048
3049 /* Scan interp_prefix dir for replacement files. */
3050 init_paths(interp_prefix);
3051
3052 if (cpu_model == NULL) {
3053 #if defined(TARGET_I386)
3054 #ifdef TARGET_X86_64
3055 cpu_model = "qemu64";
3056 #else
3057 cpu_model = "qemu32";
3058 #endif
3059 #elif defined(TARGET_ARM)
3060 cpu_model = "any";
3061 #elif defined(TARGET_UNICORE32)
3062 cpu_model = "any";
3063 #elif defined(TARGET_M68K)
3064 cpu_model = "any";
3065 #elif defined(TARGET_SPARC)
3066 #ifdef TARGET_SPARC64
3067 cpu_model = "TI UltraSparc II";
3068 #else
3069 cpu_model = "Fujitsu MB86904";
3070 #endif
3071 #elif defined(TARGET_MIPS)
3072 #if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64)
3073 cpu_model = "20Kc";
3074 #else
3075 cpu_model = "24Kf";
3076 #endif
3077 #elif defined(TARGET_PPC)
3078 #ifdef TARGET_PPC64
3079 cpu_model = "970fx";
3080 #else
3081 cpu_model = "750";
3082 #endif
3083 #else
3084 cpu_model = "any";
3085 #endif
3086 }
3087 cpu_exec_init_all(0);
3088 /* NOTE: we need to init the CPU at this stage to get
3089 qemu_host_page_size */
3090 env = cpu_init(cpu_model);
3091 if (!env) {
3092 fprintf(stderr, "Unable to find CPU definition\n");
3093 exit(1);
3094 }
3095 #if defined(TARGET_I386) || defined(TARGET_SPARC) || defined(TARGET_PPC)
3096 cpu_reset(env);
3097 #endif
3098
3099 thread_env = env;
3100
3101 if (getenv("QEMU_STRACE")) {
3102 do_strace = 1;
3103 }
3104
3105 target_environ = envlist_to_environ(envlist, NULL);
3106 envlist_free(envlist);
3107
3108 #if defined(CONFIG_USE_GUEST_BASE)
3109 /*
3110 * Now that page sizes are configured in cpu_init() we can do
3111 * proper page alignment for guest_base.
3112 */
3113 guest_base = HOST_PAGE_ALIGN(guest_base);
3114
3115 if (reserved_va) {
3116 void *p;
3117 int flags;
3118
3119 flags = MAP_ANONYMOUS | MAP_PRIVATE | MAP_NORESERVE;
3120 if (have_guest_base) {
3121 flags |= MAP_FIXED;
3122 }
3123 p = mmap((void *)guest_base, reserved_va, PROT_NONE, flags, -1, 0);
3124 if (p == MAP_FAILED) {
3125 fprintf(stderr, "Unable to reserve guest address space\n");
3126 exit(1);
3127 }
3128 guest_base = (unsigned long)p;
3129 /* Make sure the address is properly aligned. */
3130 if (guest_base & ~qemu_host_page_mask) {
3131 munmap(p, reserved_va);
3132 p = mmap((void *)guest_base, reserved_va + qemu_host_page_size,
3133 PROT_NONE, flags, -1, 0);
3134 if (p == MAP_FAILED) {
3135 fprintf(stderr, "Unable to reserve guest address space\n");
3136 exit(1);
3137 }
3138 guest_base = HOST_PAGE_ALIGN((unsigned long)p);
3139 }
3140 qemu_log("Reserved 0x%lx bytes of guest address space\n", reserved_va);
3141 }
3142 #endif /* CONFIG_USE_GUEST_BASE */
3143
3144 /*
3145 * Read in mmap_min_addr kernel parameter. This value is used
3146 * When loading the ELF image to determine whether guest_base
3147 * is needed. It is also used in mmap_find_vma.
3148 */
3149 {
3150 FILE *fp;
3151
3152 if ((fp = fopen("/proc/sys/vm/mmap_min_addr", "r")) != NULL) {
3153 unsigned long tmp;
3154 if (fscanf(fp, "%lu", &tmp) == 1) {
3155 mmap_min_addr = tmp;
3156 qemu_log("host mmap_min_addr=0x%lx\n", mmap_min_addr);
3157 }
3158 fclose(fp);
3159 }
3160 }
3161
3162 /*
3163 * Prepare copy of argv vector for target.
3164 */
3165 target_argc = argc - optind;
3166 target_argv = calloc(target_argc + 1, sizeof (char *));
3167 if (target_argv == NULL) {
3168 (void) fprintf(stderr, "Unable to allocate memory for target_argv\n");
3169 exit(1);
3170 }
3171
3172 /*
3173 * If argv0 is specified (using '-0' switch) we replace
3174 * argv[0] pointer with the given one.
3175 */
3176 i = 0;
3177 if (argv0 != NULL) {
3178 target_argv[i++] = strdup(argv0);
3179 }
3180 for (; i < target_argc; i++) {
3181 target_argv[i] = strdup(argv[optind + i]);
3182 }
3183 target_argv[target_argc] = NULL;
3184
3185 ts = qemu_mallocz (sizeof(TaskState));
3186 init_task_state(ts);
3187 /* build Task State */
3188 ts->info = info;
3189 ts->bprm = &bprm;
3190 env->opaque = ts;
3191 task_settid(ts);
3192
3193 ret = loader_exec(filename, target_argv, target_environ, regs,
3194 info, &bprm);
3195 if (ret != 0) {
3196 printf("Error %d while loading %s\n", ret, filename);
3197 _exit(1);
3198 }
3199
3200 for (i = 0; i < target_argc; i++) {
3201 free(target_argv[i]);
3202 }
3203 free(target_argv);
3204
3205 for (wrk = target_environ; *wrk; wrk++) {
3206 free(*wrk);
3207 }
3208
3209 free(target_environ);
3210
3211 if (qemu_log_enabled()) {
3212 #if defined(CONFIG_USE_GUEST_BASE)
3213 qemu_log("guest_base 0x%lx\n", guest_base);
3214 #endif
3215 log_page_dump();
3216
3217 qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk);
3218 qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code);
3219 qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n",
3220 info->start_code);
3221 qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n",
3222 info->start_data);
3223 qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data);
3224 qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n",
3225 info->start_stack);
3226 qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk);
3227 qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry);
3228 }
3229
3230 target_set_brk(info->brk);
3231 syscall_init();
3232 signal_init();
3233
3234 #if defined(CONFIG_USE_GUEST_BASE)
3235 /* Now that we've loaded the binary, GUEST_BASE is fixed. Delay
3236 generating the prologue until now so that the prologue can take
3237 the real value of GUEST_BASE into account. */
3238 tcg_prologue_init(&tcg_ctx);
3239 #endif
3240
3241 #if defined(TARGET_I386)
3242 cpu_x86_set_cpl(env, 3);
3243
3244 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
3245 env->hflags |= HF_PE_MASK;
3246 if (env->cpuid_features & CPUID_SSE) {
3247 env->cr[4] |= CR4_OSFXSR_MASK;
3248 env->hflags |= HF_OSFXSR_MASK;
3249 }
3250 #ifndef TARGET_ABI32
3251 /* enable 64 bit mode if possible */
3252 if (!(env->cpuid_ext2_features & CPUID_EXT2_LM)) {
3253 fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n");
3254 exit(1);
3255 }
3256 env->cr[4] |= CR4_PAE_MASK;
3257 env->efer |= MSR_EFER_LMA | MSR_EFER_LME;
3258 env->hflags |= HF_LMA_MASK;
3259 #endif
3260
3261 /* flags setup : we activate the IRQs by default as in user mode */
3262 env->eflags |= IF_MASK;
3263
3264 /* linux register setup */
3265 #ifndef TARGET_ABI32
3266 env->regs[R_EAX] = regs->rax;
3267 env->regs[R_EBX] = regs->rbx;
3268 env->regs[R_ECX] = regs->rcx;
3269 env->regs[R_EDX] = regs->rdx;
3270 env->regs[R_ESI] = regs->rsi;
3271 env->regs[R_EDI] = regs->rdi;
3272 env->regs[R_EBP] = regs->rbp;
3273 env->regs[R_ESP] = regs->rsp;
3274 env->eip = regs->rip;
3275 #else
3276 env->regs[R_EAX] = regs->eax;
3277 env->regs[R_EBX] = regs->ebx;
3278 env->regs[R_ECX] = regs->ecx;
3279 env->regs[R_EDX] = regs->edx;
3280 env->regs[R_ESI] = regs->esi;
3281 env->regs[R_EDI] = regs->edi;
3282 env->regs[R_EBP] = regs->ebp;
3283 env->regs[R_ESP] = regs->esp;
3284 env->eip = regs->eip;
3285 #endif
3286
3287 /* linux interrupt setup */
3288 #ifndef TARGET_ABI32
3289 env->idt.limit = 511;
3290 #else
3291 env->idt.limit = 255;
3292 #endif
3293 env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1),
3294 PROT_READ|PROT_WRITE,
3295 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3296 idt_table = g2h(env->idt.base);
3297 set_idt(0, 0);
3298 set_idt(1, 0);
3299 set_idt(2, 0);
3300 set_idt(3, 3);
3301 set_idt(4, 3);
3302 set_idt(5, 0);
3303 set_idt(6, 0);
3304 set_idt(7, 0);
3305 set_idt(8, 0);
3306 set_idt(9, 0);
3307 set_idt(10, 0);
3308 set_idt(11, 0);
3309 set_idt(12, 0);
3310 set_idt(13, 0);
3311 set_idt(14, 0);
3312 set_idt(15, 0);
3313 set_idt(16, 0);
3314 set_idt(17, 0);
3315 set_idt(18, 0);
3316 set_idt(19, 0);
3317 set_idt(0x80, 3);
3318
3319 /* linux segment setup */
3320 {
3321 uint64_t *gdt_table;
3322 env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES,
3323 PROT_READ|PROT_WRITE,
3324 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3325 env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1;
3326 gdt_table = g2h(env->gdt.base);
3327 #ifdef TARGET_ABI32
3328 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
3329 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3330 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
3331 #else
3332 /* 64 bit code segment */
3333 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
3334 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3335 DESC_L_MASK |
3336 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
3337 #endif
3338 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
3339 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3340 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
3341 }
3342 cpu_x86_load_seg(env, R_CS, __USER_CS);
3343 cpu_x86_load_seg(env, R_SS, __USER_DS);
3344 #ifdef TARGET_ABI32
3345 cpu_x86_load_seg(env, R_DS, __USER_DS);
3346 cpu_x86_load_seg(env, R_ES, __USER_DS);
3347 cpu_x86_load_seg(env, R_FS, __USER_DS);
3348 cpu_x86_load_seg(env, R_GS, __USER_DS);
3349 /* This hack makes Wine work... */
3350 env->segs[R_FS].selector = 0;
3351 #else
3352 cpu_x86_load_seg(env, R_DS, 0);
3353 cpu_x86_load_seg(env, R_ES, 0);
3354 cpu_x86_load_seg(env, R_FS, 0);
3355 cpu_x86_load_seg(env, R_GS, 0);
3356 #endif
3357 #elif defined(TARGET_ARM)
3358 {
3359 int i;
3360 cpsr_write(env, regs->uregs[16], 0xffffffff);
3361 for(i = 0; i < 16; i++) {
3362 env->regs[i] = regs->uregs[i];
3363 }
3364 }
3365 #elif defined(TARGET_UNICORE32)
3366 {
3367 int i;
3368 cpu_asr_write(env, regs->uregs[32], 0xffffffff);
3369 for (i = 0; i < 32; i++) {
3370 env->regs[i] = regs->uregs[i];
3371 }
3372 }
3373 #elif defined(TARGET_SPARC)
3374 {
3375 int i;
3376 env->pc = regs->pc;
3377 env->npc = regs->npc;
3378 env->y = regs->y;
3379 for(i = 0; i < 8; i++)
3380 env->gregs[i] = regs->u_regs[i];
3381 for(i = 0; i < 8; i++)
3382 env->regwptr[i] = regs->u_regs[i + 8];
3383 }
3384 #elif defined(TARGET_PPC)
3385 {
3386 int i;
3387
3388 #if defined(TARGET_PPC64)
3389 #if defined(TARGET_ABI32)
3390 env->msr &= ~((target_ulong)1 << MSR_SF);
3391 #else
3392 env->msr |= (target_ulong)1 << MSR_SF;
3393 #endif
3394 #endif
3395 env->nip = regs->nip;
3396 for(i = 0; i < 32; i++) {
3397 env->gpr[i] = regs->gpr[i];
3398 }
3399 }
3400 #elif defined(TARGET_M68K)
3401 {
3402 env->pc = regs->pc;
3403 env->dregs[0] = regs->d0;
3404 env->dregs[1] = regs->d1;
3405 env->dregs[2] = regs->d2;
3406 env->dregs[3] = regs->d3;
3407 env->dregs[4] = regs->d4;
3408 env->dregs[5] = regs->d5;
3409 env->dregs[6] = regs->d6;
3410 env->dregs[7] = regs->d7;
3411 env->aregs[0] = regs->a0;
3412 env->aregs[1] = regs->a1;
3413 env->aregs[2] = regs->a2;
3414 env->aregs[3] = regs->a3;
3415 env->aregs[4] = regs->a4;
3416 env->aregs[5] = regs->a5;
3417 env->aregs[6] = regs->a6;
3418 env->aregs[7] = regs->usp;
3419 env->sr = regs->sr;
3420 ts->sim_syscalls = 1;
3421 }
3422 #elif defined(TARGET_MICROBLAZE)
3423 {
3424 env->regs[0] = regs->r0;
3425 env->regs[1] = regs->r1;
3426 env->regs[2] = regs->r2;
3427 env->regs[3] = regs->r3;
3428 env->regs[4] = regs->r4;
3429 env->regs[5] = regs->r5;
3430 env->regs[6] = regs->r6;
3431 env->regs[7] = regs->r7;
3432 env->regs[8] = regs->r8;
3433 env->regs[9] = regs->r9;
3434 env->regs[10] = regs->r10;
3435 env->regs[11] = regs->r11;
3436 env->regs[12] = regs->r12;
3437 env->regs[13] = regs->r13;
3438 env->regs[14] = regs->r14;
3439 env->regs[15] = regs->r15;
3440 env->regs[16] = regs->r16;
3441 env->regs[17] = regs->r17;
3442 env->regs[18] = regs->r18;
3443 env->regs[19] = regs->r19;
3444 env->regs[20] = regs->r20;
3445 env->regs[21] = regs->r21;
3446 env->regs[22] = regs->r22;
3447 env->regs[23] = regs->r23;
3448 env->regs[24] = regs->r24;
3449 env->regs[25] = regs->r25;
3450 env->regs[26] = regs->r26;
3451 env->regs[27] = regs->r27;
3452 env->regs[28] = regs->r28;
3453 env->regs[29] = regs->r29;
3454 env->regs[30] = regs->r30;
3455 env->regs[31] = regs->r31;
3456 env->sregs[SR_PC] = regs->pc;
3457 }
3458 #elif defined(TARGET_MIPS)
3459 {
3460 int i;
3461
3462 for(i = 0; i < 32; i++) {
3463 env->active_tc.gpr[i] = regs->regs[i];
3464 }
3465 env->active_tc.PC = regs->cp0_epc & ~(target_ulong)1;
3466 if (regs->cp0_epc & 1) {
3467 env->hflags |= MIPS_HFLAG_M16;
3468 }
3469 }
3470 #elif defined(TARGET_SH4)
3471 {
3472 int i;
3473
3474 for(i = 0; i < 16; i++) {
3475 env->gregs[i] = regs->regs[i];
3476 }
3477 env->pc = regs->pc;
3478 }
3479 #elif defined(TARGET_ALPHA)
3480 {
3481 int i;
3482
3483 for(i = 0; i < 28; i++) {
3484 env->ir[i] = ((abi_ulong *)regs)[i];
3485 }
3486 env->ir[IR_SP] = regs->usp;
3487 env->pc = regs->pc;
3488 }
3489 #elif defined(TARGET_CRIS)
3490 {
3491 env->regs[0] = regs->r0;
3492 env->regs[1] = regs->r1;
3493 env->regs[2] = regs->r2;
3494 env->regs[3] = regs->r3;
3495 env->regs[4] = regs->r4;
3496 env->regs[5] = regs->r5;
3497 env->regs[6] = regs->r6;
3498 env->regs[7] = regs->r7;
3499 env->regs[8] = regs->r8;
3500 env->regs[9] = regs->r9;
3501 env->regs[10] = regs->r10;
3502 env->regs[11] = regs->r11;
3503 env->regs[12] = regs->r12;
3504 env->regs[13] = regs->r13;
3505 env->regs[14] = info->start_stack;
3506 env->regs[15] = regs->acr;
3507 env->pc = regs->erp;
3508 }
3509 #elif defined(TARGET_S390X)
3510 {
3511 int i;
3512 for (i = 0; i < 16; i++) {
3513 env->regs[i] = regs->gprs[i];
3514 }
3515 env->psw.mask = regs->psw.mask;
3516 env->psw.addr = regs->psw.addr;
3517 }
3518 #else
3519 #error unsupported target CPU
3520 #endif
3521
3522 #if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
3523 ts->stack_base = info->start_stack;
3524 ts->heap_base = info->brk;
3525 /* This will be filled in on the first SYS_HEAPINFO call. */
3526 ts->heap_limit = 0;
3527 #endif
3528
3529 if (gdbstub_port) {
3530 gdbserver_start (gdbstub_port);
3531 gdb_handlesig(env, 0);
3532 }
3533 cpu_loop(env);
3534 /* never exits */
3535 return 0;
3536 }
QEmu