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Version 0.15.1
[qemu/mdroth.git] / linux-user / main.c
blob6a8f4bdc11bbbab22e7d592e75e3a1c139705f0d
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 #include "cpu.h"
33 #include "tcg.h"
34 #include "qemu-timer.h"
35 #include "envlist.h"
36
37 #define DEBUG_LOGFILE "/tmp/qemu.log"
38
39 char *exec_path;
40
41 int singlestep;
42 unsigned long mmap_min_addr;
43 #if defined(CONFIG_USE_GUEST_BASE)
44 unsigned long guest_base;
45 int have_guest_base;
46 unsigned long reserved_va;
47 #endif
48
49 static const char *interp_prefix = CONFIG_QEMU_INTERP_PREFIX;
50 const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
51
52 /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
53 we allocate a bigger stack. Need a better solution, for example
54 by remapping the process stack directly at the right place */
55 unsigned long guest_stack_size = 8 * 1024 * 1024UL;
56
57 void gemu_log(const char *fmt, ...)
58 {
59 va_list ap;
60
61 va_start(ap, fmt);
62 vfprintf(stderr, fmt, ap);
63 va_end(ap);
64 }
65
66 #if defined(TARGET_I386)
67 int cpu_get_pic_interrupt(CPUState *env)
68 {
69 return -1;
70 }
71 #endif
72
73 /* timers for rdtsc */
74
75 #if 0
76
77 static uint64_t emu_time;
78
79 int64_t cpu_get_real_ticks(void)
80 {
81 return emu_time++;
82 }
83
84 #endif
85
86 #if defined(CONFIG_USE_NPTL)
87 /***********************************************************/
88 /* Helper routines for implementing atomic operations. */
89
90 /* To implement exclusive operations we force all cpus to syncronise.
91 We don't require a full sync, only that no cpus are executing guest code.
92 The alternative is to map target atomic ops onto host equivalents,
93 which requires quite a lot of per host/target work. */
94 static pthread_mutex_t cpu_list_mutex = PTHREAD_MUTEX_INITIALIZER;
95 static pthread_mutex_t exclusive_lock = PTHREAD_MUTEX_INITIALIZER;
96 static pthread_cond_t exclusive_cond = PTHREAD_COND_INITIALIZER;
97 static pthread_cond_t exclusive_resume = PTHREAD_COND_INITIALIZER;
98 static int pending_cpus;
99
100 /* Make sure everything is in a consistent state for calling fork(). */
101 void fork_start(void)
102 {
103 pthread_mutex_lock(&tb_lock);
104 pthread_mutex_lock(&exclusive_lock);
105 mmap_fork_start();
106 }
107
108 void fork_end(int child)
109 {
110 mmap_fork_end(child);
111 if (child) {
112 /* Child processes created by fork() only have a single thread.
113 Discard information about the parent threads. */
114 first_cpu = thread_env;
115 thread_env->next_cpu = NULL;
116 pending_cpus = 0;
117 pthread_mutex_init(&exclusive_lock, NULL);
118 pthread_mutex_init(&cpu_list_mutex, NULL);
119 pthread_cond_init(&exclusive_cond, NULL);
120 pthread_cond_init(&exclusive_resume, NULL);
121 pthread_mutex_init(&tb_lock, NULL);
122 gdbserver_fork(thread_env);
123 } else {
124 pthread_mutex_unlock(&exclusive_lock);
125 pthread_mutex_unlock(&tb_lock);
126 }
127 }
128
129 /* Wait for pending exclusive operations to complete. The exclusive lock
130 must be held. */
131 static inline void exclusive_idle(void)
132 {
133 while (pending_cpus) {
134 pthread_cond_wait(&exclusive_resume, &exclusive_lock);
135 }
136 }
137
138 /* Start an exclusive operation.
139 Must only be called from outside cpu_arm_exec. */
140 static inline void start_exclusive(void)
141 {
142 CPUState *other;
143 pthread_mutex_lock(&exclusive_lock);
144 exclusive_idle();
145
146 pending_cpus = 1;
147 /* Make all other cpus stop executing. */
148 for (other = first_cpu; other; other = other->next_cpu) {
149 if (other->running) {
150 pending_cpus++;
151 cpu_exit(other);
152 }
153 }
154 if (pending_cpus > 1) {
155 pthread_cond_wait(&exclusive_cond, &exclusive_lock);
156 }
157 }
158
159 /* Finish an exclusive operation. */
160 static inline void end_exclusive(void)
161 {
162 pending_cpus = 0;
163 pthread_cond_broadcast(&exclusive_resume);
164 pthread_mutex_unlock(&exclusive_lock);
165 }
166
167 /* Wait for exclusive ops to finish, and begin cpu execution. */
168 static inline void cpu_exec_start(CPUState *env)
169 {
170 pthread_mutex_lock(&exclusive_lock);
171 exclusive_idle();
172 env->running = 1;
173 pthread_mutex_unlock(&exclusive_lock);
174 }
175
176 /* Mark cpu as not executing, and release pending exclusive ops. */
177 static inline void cpu_exec_end(CPUState *env)
178 {
179 pthread_mutex_lock(&exclusive_lock);
180 env->running = 0;
181 if (pending_cpus > 1) {
182 pending_cpus--;
183 if (pending_cpus == 1) {
184 pthread_cond_signal(&exclusive_cond);
185 }
186 }
187 exclusive_idle();
188 pthread_mutex_unlock(&exclusive_lock);
189 }
190
191 void cpu_list_lock(void)
192 {
193 pthread_mutex_lock(&cpu_list_mutex);
194 }
195
196 void cpu_list_unlock(void)
197 {
198 pthread_mutex_unlock(&cpu_list_mutex);
199 }
200 #else /* if !CONFIG_USE_NPTL */
201 /* These are no-ops because we are not threadsafe. */
202 static inline void cpu_exec_start(CPUState *env)
203 {
204 }
205
206 static inline void cpu_exec_end(CPUState *env)
207 {
208 }
209
210 static inline void start_exclusive(void)
211 {
212 }
213
214 static inline void end_exclusive(void)
215 {
216 }
217
218 void fork_start(void)
219 {
220 }
221
222 void fork_end(int child)
223 {
224 if (child) {
225 gdbserver_fork(thread_env);
226 }
227 }
228
229 void cpu_list_lock(void)
230 {
231 }
232
233 void cpu_list_unlock(void)
234 {
235 }
236 #endif
237
238
239 #ifdef TARGET_I386
240 /***********************************************************/
241 /* CPUX86 core interface */
242
243 void cpu_smm_update(CPUState *env)
244 {
245 }
246
247 uint64_t cpu_get_tsc(CPUX86State *env)
248 {
249 return cpu_get_real_ticks();
250 }
251
252 static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
253 int flags)
254 {
255 unsigned int e1, e2;
256 uint32_t *p;
257 e1 = (addr << 16) | (limit & 0xffff);
258 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
259 e2 |= flags;
260 p = ptr;
261 p[0] = tswap32(e1);
262 p[1] = tswap32(e2);
263 }
264
265 static uint64_t *idt_table;
266 #ifdef TARGET_X86_64
267 static void set_gate64(void *ptr, unsigned int type, unsigned int dpl,
268 uint64_t addr, unsigned int sel)
269 {
270 uint32_t *p, e1, e2;
271 e1 = (addr & 0xffff) | (sel << 16);
272 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
273 p = ptr;
274 p[0] = tswap32(e1);
275 p[1] = tswap32(e2);
276 p[2] = tswap32(addr >> 32);
277 p[3] = 0;
278 }
279 /* only dpl matters as we do only user space emulation */
280 static void set_idt(int n, unsigned int dpl)
281 {
282 set_gate64(idt_table + n * 2, 0, dpl, 0, 0);
283 }
284 #else
285 static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
286 uint32_t addr, unsigned int sel)
287 {
288 uint32_t *p, e1, e2;
289 e1 = (addr & 0xffff) | (sel << 16);
290 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
291 p = ptr;
292 p[0] = tswap32(e1);
293 p[1] = tswap32(e2);
294 }
295
296 /* only dpl matters as we do only user space emulation */
297 static void set_idt(int n, unsigned int dpl)
298 {
299 set_gate(idt_table + n, 0, dpl, 0, 0);
300 }
301 #endif
302
303 void cpu_loop(CPUX86State *env)
304 {
305 int trapnr;
306 abi_ulong pc;
307 target_siginfo_t info;
308
309 for(;;) {
310 trapnr = cpu_x86_exec(env);
311 switch(trapnr) {
312 case 0x80:
313 /* linux syscall from int $0x80 */
314 env->regs[R_EAX] = do_syscall(env,
315 env->regs[R_EAX],
316 env->regs[R_EBX],
317 env->regs[R_ECX],
318 env->regs[R_EDX],
319 env->regs[R_ESI],
320 env->regs[R_EDI],
321 env->regs[R_EBP],
322 0, 0);
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 0, 0);
336 env->eip = env->exception_next_eip;
337 break;
338 #endif
339 case EXCP0B_NOSEG:
340 case EXCP0C_STACK:
341 info.si_signo = SIGBUS;
342 info.si_errno = 0;
343 info.si_code = TARGET_SI_KERNEL;
344 info._sifields._sigfault._addr = 0;
345 queue_signal(env, info.si_signo, &info);
346 break;
347 case EXCP0D_GPF:
348 /* XXX: potential problem if ABI32 */
349 #ifndef TARGET_X86_64
350 if (env->eflags & VM_MASK) {
351 handle_vm86_fault(env);
352 } else
353 #endif
354 {
355 info.si_signo = SIGSEGV;
356 info.si_errno = 0;
357 info.si_code = TARGET_SI_KERNEL;
358 info._sifields._sigfault._addr = 0;
359 queue_signal(env, info.si_signo, &info);
360 }
361 break;
362 case EXCP0E_PAGE:
363 info.si_signo = SIGSEGV;
364 info.si_errno = 0;
365 if (!(env->error_code & 1))
366 info.si_code = TARGET_SEGV_MAPERR;
367 else
368 info.si_code = TARGET_SEGV_ACCERR;
369 info._sifields._sigfault._addr = env->cr[2];
370 queue_signal(env, info.si_signo, &info);
371 break;
372 case EXCP00_DIVZ:
373 #ifndef TARGET_X86_64
374 if (env->eflags & VM_MASK) {
375 handle_vm86_trap(env, trapnr);
376 } else
377 #endif
378 {
379 /* division by zero */
380 info.si_signo = SIGFPE;
381 info.si_errno = 0;
382 info.si_code = TARGET_FPE_INTDIV;
383 info._sifields._sigfault._addr = env->eip;
384 queue_signal(env, info.si_signo, &info);
385 }
386 break;
387 case EXCP01_DB:
388 case EXCP03_INT3:
389 #ifndef TARGET_X86_64
390 if (env->eflags & VM_MASK) {
391 handle_vm86_trap(env, trapnr);
392 } else
393 #endif
394 {
395 info.si_signo = SIGTRAP;
396 info.si_errno = 0;
397 if (trapnr == EXCP01_DB) {
398 info.si_code = TARGET_TRAP_BRKPT;
399 info._sifields._sigfault._addr = env->eip;
400 } else {
401 info.si_code = TARGET_SI_KERNEL;
402 info._sifields._sigfault._addr = 0;
403 }
404 queue_signal(env, info.si_signo, &info);
405 }
406 break;
407 case EXCP04_INTO:
408 case EXCP05_BOUND:
409 #ifndef TARGET_X86_64
410 if (env->eflags & VM_MASK) {
411 handle_vm86_trap(env, trapnr);
412 } else
413 #endif
414 {
415 info.si_signo = SIGSEGV;
416 info.si_errno = 0;
417 info.si_code = TARGET_SI_KERNEL;
418 info._sifields._sigfault._addr = 0;
419 queue_signal(env, info.si_signo, &info);
420 }
421 break;
422 case EXCP06_ILLOP:
423 info.si_signo = SIGILL;
424 info.si_errno = 0;
425 info.si_code = TARGET_ILL_ILLOPN;
426 info._sifields._sigfault._addr = env->eip;
427 queue_signal(env, info.si_signo, &info);
428 break;
429 case EXCP_INTERRUPT:
430 /* just indicate that signals should be handled asap */
431 break;
432 case EXCP_DEBUG:
433 {
434 int sig;
435
436 sig = gdb_handlesig (env, TARGET_SIGTRAP);
437 if (sig)
438 {
439 info.si_signo = sig;
440 info.si_errno = 0;
441 info.si_code = TARGET_TRAP_BRKPT;
442 queue_signal(env, info.si_signo, &info);
443 }
444 }
445 break;
446 default:
447 pc = env->segs[R_CS].base + env->eip;
448 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
449 (long)pc, trapnr);
450 abort();
451 }
452 process_pending_signals(env);
453 }
454 }
455 #endif
456
457 #ifdef TARGET_ARM
458
459 /* Handle a jump to the kernel code page. */
460 static int
461 do_kernel_trap(CPUARMState *env)
462 {
463 uint32_t addr;
464 uint32_t cpsr;
465 uint32_t val;
466
467 switch (env->regs[15]) {
468 case 0xffff0fa0: /* __kernel_memory_barrier */
469 /* ??? No-op. Will need to do better for SMP. */
470 break;
471 case 0xffff0fc0: /* __kernel_cmpxchg */
472 /* XXX: This only works between threads, not between processes.
473 It's probably possible to implement this with native host
474 operations. However things like ldrex/strex are much harder so
475 there's not much point trying. */
476 start_exclusive();
477 cpsr = cpsr_read(env);
478 addr = env->regs[2];
479 /* FIXME: This should SEGV if the access fails. */
480 if (get_user_u32(val, addr))
481 val = ~env->regs[0];
482 if (val == env->regs[0]) {
483 val = env->regs[1];
484 /* FIXME: Check for segfaults. */
485 put_user_u32(val, addr);
486 env->regs[0] = 0;
487 cpsr |= CPSR_C;
488 } else {
489 env->regs[0] = -1;
490 cpsr &= ~CPSR_C;
491 }
492 cpsr_write(env, cpsr, CPSR_C);
493 end_exclusive();
494 break;
495 case 0xffff0fe0: /* __kernel_get_tls */
496 env->regs[0] = env->cp15.c13_tls2;
497 break;
498 default:
499 return 1;
500 }
501 /* Jump back to the caller. */
502 addr = env->regs[14];
503 if (addr & 1) {
504 env->thumb = 1;
505 addr &= ~1;
506 }
507 env->regs[15] = addr;
508
509 return 0;
510 }
511
512 static int do_strex(CPUARMState *env)
513 {
514 uint32_t val;
515 int size;
516 int rc = 1;
517 int segv = 0;
518 uint32_t addr;
519 start_exclusive();
520 addr = env->exclusive_addr;
521 if (addr != env->exclusive_test) {
522 goto fail;
523 }
524 size = env->exclusive_info & 0xf;
525 switch (size) {
526 case 0:
527 segv = get_user_u8(val, addr);
528 break;
529 case 1:
530 segv = get_user_u16(val, addr);
531 break;
532 case 2:
533 case 3:
534 segv = get_user_u32(val, addr);
535 break;
536 default:
537 abort();
538 }
539 if (segv) {
540 env->cp15.c6_data = addr;
541 goto done;
542 }
543 if (val != env->exclusive_val) {
544 goto fail;
545 }
546 if (size == 3) {
547 segv = get_user_u32(val, addr + 4);
548 if (segv) {
549 env->cp15.c6_data = addr + 4;
550 goto done;
551 }
552 if (val != env->exclusive_high) {
553 goto fail;
554 }
555 }
556 val = env->regs[(env->exclusive_info >> 8) & 0xf];
557 switch (size) {
558 case 0:
559 segv = put_user_u8(val, addr);
560 break;
561 case 1:
562 segv = put_user_u16(val, addr);
563 break;
564 case 2:
565 case 3:
566 segv = put_user_u32(val, addr);
567 break;
568 }
569 if (segv) {
570 env->cp15.c6_data = addr;
571 goto done;
572 }
573 if (size == 3) {
574 val = env->regs[(env->exclusive_info >> 12) & 0xf];
575 segv = put_user_u32(val, addr + 4);
576 if (segv) {
577 env->cp15.c6_data = addr + 4;
578 goto done;
579 }
580 }
581 rc = 0;
582 fail:
583 env->regs[15] += 4;
584 env->regs[(env->exclusive_info >> 4) & 0xf] = rc;
585 done:
586 end_exclusive();
587 return segv;
588 }
589
590 void cpu_loop(CPUARMState *env)
591 {
592 int trapnr;
593 unsigned int n, insn;
594 target_siginfo_t info;
595 uint32_t addr;
596
597 for(;;) {
598 cpu_exec_start(env);
599 trapnr = cpu_arm_exec(env);
600 cpu_exec_end(env);
601 switch(trapnr) {
602 case EXCP_UDEF:
603 {
604 TaskState *ts = env->opaque;
605 uint32_t opcode;
606 int rc;
607
608 /* we handle the FPU emulation here, as Linux */
609 /* we get the opcode */
610 /* FIXME - what to do if get_user() fails? */
611 get_user_u32(opcode, env->regs[15]);
612
613 rc = EmulateAll(opcode, &ts->fpa, env);
614 if (rc == 0) { /* illegal instruction */
615 info.si_signo = SIGILL;
616 info.si_errno = 0;
617 info.si_code = TARGET_ILL_ILLOPN;
618 info._sifields._sigfault._addr = env->regs[15];
619 queue_signal(env, info.si_signo, &info);
620 } else if (rc < 0) { /* FP exception */
621 int arm_fpe=0;
622
623 /* translate softfloat flags to FPSR flags */
624 if (-rc & float_flag_invalid)
625 arm_fpe |= BIT_IOC;
626 if (-rc & float_flag_divbyzero)
627 arm_fpe |= BIT_DZC;
628 if (-rc & float_flag_overflow)
629 arm_fpe |= BIT_OFC;
630 if (-rc & float_flag_underflow)
631 arm_fpe |= BIT_UFC;
632 if (-rc & float_flag_inexact)
633 arm_fpe |= BIT_IXC;
634
635 FPSR fpsr = ts->fpa.fpsr;
636 //printf("fpsr 0x%x, arm_fpe 0x%x\n",fpsr,arm_fpe);
637
638 if (fpsr & (arm_fpe << 16)) { /* exception enabled? */
639 info.si_signo = SIGFPE;
640 info.si_errno = 0;
641
642 /* ordered by priority, least first */
643 if (arm_fpe & BIT_IXC) info.si_code = TARGET_FPE_FLTRES;
644 if (arm_fpe & BIT_UFC) info.si_code = TARGET_FPE_FLTUND;
645 if (arm_fpe & BIT_OFC) info.si_code = TARGET_FPE_FLTOVF;
646 if (arm_fpe & BIT_DZC) info.si_code = TARGET_FPE_FLTDIV;
647 if (arm_fpe & BIT_IOC) info.si_code = TARGET_FPE_FLTINV;
648
649 info._sifields._sigfault._addr = env->regs[15];
650 queue_signal(env, info.si_signo, &info);
651 } else {
652 env->regs[15] += 4;
653 }
654
655 /* accumulate unenabled exceptions */
656 if ((!(fpsr & BIT_IXE)) && (arm_fpe & BIT_IXC))
657 fpsr |= BIT_IXC;
658 if ((!(fpsr & BIT_UFE)) && (arm_fpe & BIT_UFC))
659 fpsr |= BIT_UFC;
660 if ((!(fpsr & BIT_OFE)) && (arm_fpe & BIT_OFC))
661 fpsr |= BIT_OFC;
662 if ((!(fpsr & BIT_DZE)) && (arm_fpe & BIT_DZC))
663 fpsr |= BIT_DZC;
664 if ((!(fpsr & BIT_IOE)) && (arm_fpe & BIT_IOC))
665 fpsr |= BIT_IOC;
666 ts->fpa.fpsr=fpsr;
667 } else { /* everything OK */
668 /* increment PC */
669 env->regs[15] += 4;
670 }
671 }
672 break;
673 case EXCP_SWI:
674 case EXCP_BKPT:
675 {
676 env->eabi = 1;
677 /* system call */
678 if (trapnr == EXCP_BKPT) {
679 if (env->thumb) {
680 /* FIXME - what to do if get_user() fails? */
681 get_user_u16(insn, env->regs[15]);
682 n = insn & 0xff;
683 env->regs[15] += 2;
684 } else {
685 /* FIXME - what to do if get_user() fails? */
686 get_user_u32(insn, env->regs[15]);
687 n = (insn & 0xf) | ((insn >> 4) & 0xff0);
688 env->regs[15] += 4;
689 }
690 } else {
691 if (env->thumb) {
692 /* FIXME - what to do if get_user() fails? */
693 get_user_u16(insn, env->regs[15] - 2);
694 n = insn & 0xff;
695 } else {
696 /* FIXME - what to do if get_user() fails? */
697 get_user_u32(insn, env->regs[15] - 4);
698 n = insn & 0xffffff;
699 }
700 }
701
702 if (n == ARM_NR_cacheflush) {
703 /* nop */
704 } else if (n == ARM_NR_semihosting
705 || n == ARM_NR_thumb_semihosting) {
706 env->regs[0] = do_arm_semihosting (env);
707 } else if (n == 0 || n >= ARM_SYSCALL_BASE
708 || (env->thumb && n == ARM_THUMB_SYSCALL)) {
709 /* linux syscall */
710 if (env->thumb || n == 0) {
711 n = env->regs[7];
712 } else {
713 n -= ARM_SYSCALL_BASE;
714 env->eabi = 0;
715 }
716 if ( n > ARM_NR_BASE) {
717 switch (n) {
718 case ARM_NR_cacheflush:
719 /* nop */
720 break;
721 case ARM_NR_set_tls:
722 cpu_set_tls(env, env->regs[0]);
723 env->regs[0] = 0;
724 break;
725 default:
726 gemu_log("qemu: Unsupported ARM syscall: 0x%x\n",
727 n);
728 env->regs[0] = -TARGET_ENOSYS;
729 break;
730 }
731 } else {
732 env->regs[0] = do_syscall(env,
733 n,
734 env->regs[0],
735 env->regs[1],
736 env->regs[2],
737 env->regs[3],
738 env->regs[4],
739 env->regs[5],
740 0, 0);
741 }
742 } else {
743 goto error;
744 }
745 }
746 break;
747 case EXCP_INTERRUPT:
748 /* just indicate that signals should be handled asap */
749 break;
750 case EXCP_PREFETCH_ABORT:
751 addr = env->cp15.c6_insn;
752 goto do_segv;
753 case EXCP_DATA_ABORT:
754 addr = env->cp15.c6_data;
755 goto do_segv;
756 do_segv:
757 {
758 info.si_signo = SIGSEGV;
759 info.si_errno = 0;
760 /* XXX: check env->error_code */
761 info.si_code = TARGET_SEGV_MAPERR;
762 info._sifields._sigfault._addr = addr;
763 queue_signal(env, info.si_signo, &info);
764 }
765 break;
766 case EXCP_DEBUG:
767 {
768 int sig;
769
770 sig = gdb_handlesig (env, TARGET_SIGTRAP);
771 if (sig)
772 {
773 info.si_signo = sig;
774 info.si_errno = 0;
775 info.si_code = TARGET_TRAP_BRKPT;
776 queue_signal(env, info.si_signo, &info);
777 }
778 }
779 break;
780 case EXCP_KERNEL_TRAP:
781 if (do_kernel_trap(env))
782 goto error;
783 break;
784 case EXCP_STREX:
785 if (do_strex(env)) {
786 addr = env->cp15.c6_data;
787 goto do_segv;
788 }
789 break;
790 default:
791 error:
792 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
793 trapnr);
794 cpu_dump_state(env, stderr, fprintf, 0);
795 abort();
796 }
797 process_pending_signals(env);
798 }
799 }
800
801 #endif
802
803 #ifdef TARGET_UNICORE32
804
805 void cpu_loop(CPUState *env)
806 {
807 int trapnr;
808 unsigned int n, insn;
809 target_siginfo_t info;
810
811 for (;;) {
812 cpu_exec_start(env);
813 trapnr = uc32_cpu_exec(env);
814 cpu_exec_end(env);
815 switch (trapnr) {
816 case UC32_EXCP_PRIV:
817 {
818 /* system call */
819 get_user_u32(insn, env->regs[31] - 4);
820 n = insn & 0xffffff;
821
822 if (n >= UC32_SYSCALL_BASE) {
823 /* linux syscall */
824 n -= UC32_SYSCALL_BASE;
825 if (n == UC32_SYSCALL_NR_set_tls) {
826 cpu_set_tls(env, env->regs[0]);
827 env->regs[0] = 0;
828 } else {
829 env->regs[0] = do_syscall(env,
830 n,
831 env->regs[0],
832 env->regs[1],
833 env->regs[2],
834 env->regs[3],
835 env->regs[4],
836 env->regs[5],
837 0, 0);
838 }
839 } else {
840 goto error;
841 }
842 }
843 break;
844 case UC32_EXCP_TRAP:
845 info.si_signo = SIGSEGV;
846 info.si_errno = 0;
847 /* XXX: check env->error_code */
848 info.si_code = TARGET_SEGV_MAPERR;
849 info._sifields._sigfault._addr = env->cp0.c4_faultaddr;
850 queue_signal(env, info.si_signo, &info);
851 break;
852 case EXCP_INTERRUPT:
853 /* just indicate that signals should be handled asap */
854 break;
855 case EXCP_DEBUG:
856 {
857 int sig;
858
859 sig = gdb_handlesig(env, TARGET_SIGTRAP);
860 if (sig) {
861 info.si_signo = sig;
862 info.si_errno = 0;
863 info.si_code = TARGET_TRAP_BRKPT;
864 queue_signal(env, info.si_signo, &info);
865 }
866 }
867 break;
868 default:
869 goto error;
870 }
871 process_pending_signals(env);
872 }
873
874 error:
875 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr);
876 cpu_dump_state(env, stderr, fprintf, 0);
877 abort();
878 }
879 #endif
880
881 #ifdef TARGET_SPARC
882 #define SPARC64_STACK_BIAS 2047
883
884 //#define DEBUG_WIN
885
886 /* WARNING: dealing with register windows _is_ complicated. More info
887 can be found at http://www.sics.se/~psm/sparcstack.html */
888 static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
889 {
890 index = (index + cwp * 16) % (16 * env->nwindows);
891 /* wrap handling : if cwp is on the last window, then we use the
892 registers 'after' the end */
893 if (index < 8 && env->cwp == env->nwindows - 1)
894 index += 16 * env->nwindows;
895 return index;
896 }
897
898 /* save the register window 'cwp1' */
899 static inline void save_window_offset(CPUSPARCState *env, int cwp1)
900 {
901 unsigned int i;
902 abi_ulong sp_ptr;
903
904 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
905 #ifdef TARGET_SPARC64
906 if (sp_ptr & 3)
907 sp_ptr += SPARC64_STACK_BIAS;
908 #endif
909 #if defined(DEBUG_WIN)
910 printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n",
911 sp_ptr, cwp1);
912 #endif
913 for(i = 0; i < 16; i++) {
914 /* FIXME - what to do if put_user() fails? */
915 put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
916 sp_ptr += sizeof(abi_ulong);
917 }
918 }
919
920 static void save_window(CPUSPARCState *env)
921 {
922 #ifndef TARGET_SPARC64
923 unsigned int new_wim;
924 new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) &
925 ((1LL << env->nwindows) - 1);
926 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
927 env->wim = new_wim;
928 #else
929 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
930 env->cansave++;
931 env->canrestore--;
932 #endif
933 }
934
935 static void restore_window(CPUSPARCState *env)
936 {
937 #ifndef TARGET_SPARC64
938 unsigned int new_wim;
939 #endif
940 unsigned int i, cwp1;
941 abi_ulong sp_ptr;
942
943 #ifndef TARGET_SPARC64
944 new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) &
945 ((1LL << env->nwindows) - 1);
946 #endif
947
948 /* restore the invalid window */
949 cwp1 = cpu_cwp_inc(env, env->cwp + 1);
950 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
951 #ifdef TARGET_SPARC64
952 if (sp_ptr & 3)
953 sp_ptr += SPARC64_STACK_BIAS;
954 #endif
955 #if defined(DEBUG_WIN)
956 printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n",
957 sp_ptr, cwp1);
958 #endif
959 for(i = 0; i < 16; i++) {
960 /* FIXME - what to do if get_user() fails? */
961 get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
962 sp_ptr += sizeof(abi_ulong);
963 }
964 #ifdef TARGET_SPARC64
965 env->canrestore++;
966 if (env->cleanwin < env->nwindows - 1)
967 env->cleanwin++;
968 env->cansave--;
969 #else
970 env->wim = new_wim;
971 #endif
972 }
973
974 static void flush_windows(CPUSPARCState *env)
975 {
976 int offset, cwp1;
977
978 offset = 1;
979 for(;;) {
980 /* if restore would invoke restore_window(), then we can stop */
981 cwp1 = cpu_cwp_inc(env, env->cwp + offset);
982 #ifndef TARGET_SPARC64
983 if (env->wim & (1 << cwp1))
984 break;
985 #else
986 if (env->canrestore == 0)
987 break;
988 env->cansave++;
989 env->canrestore--;
990 #endif
991 save_window_offset(env, cwp1);
992 offset++;
993 }
994 cwp1 = cpu_cwp_inc(env, env->cwp + 1);
995 #ifndef TARGET_SPARC64
996 /* set wim so that restore will reload the registers */
997 env->wim = 1 << cwp1;
998 #endif
999 #if defined(DEBUG_WIN)
1000 printf("flush_windows: nb=%d\n", offset - 1);
1001 #endif
1002 }
1003
1004 void cpu_loop (CPUSPARCState *env)
1005 {
1006 int trapnr;
1007 abi_long ret;
1008 target_siginfo_t info;
1009
1010 while (1) {
1011 trapnr = cpu_sparc_exec (env);
1012
1013 switch (trapnr) {
1014 #ifndef TARGET_SPARC64
1015 case 0x88:
1016 case 0x90:
1017 #else
1018 case 0x110:
1019 case 0x16d:
1020 #endif
1021 ret = do_syscall (env, env->gregs[1],
1022 env->regwptr[0], env->regwptr[1],
1023 env->regwptr[2], env->regwptr[3],
1024 env->regwptr[4], env->regwptr[5],
1025 0, 0);
1026 if ((abi_ulong)ret >= (abi_ulong)(-515)) {
1027 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
1028 env->xcc |= PSR_CARRY;
1029 #else
1030 env->psr |= PSR_CARRY;
1031 #endif
1032 ret = -ret;
1033 } else {
1034 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
1035 env->xcc &= ~PSR_CARRY;
1036 #else
1037 env->psr &= ~PSR_CARRY;
1038 #endif
1039 }
1040 env->regwptr[0] = ret;
1041 /* next instruction */
1042 env->pc = env->npc;
1043 env->npc = env->npc + 4;
1044 break;
1045 case 0x83: /* flush windows */
1046 #ifdef TARGET_ABI32
1047 case 0x103:
1048 #endif
1049 flush_windows(env);
1050 /* next instruction */
1051 env->pc = env->npc;
1052 env->npc = env->npc + 4;
1053 break;
1054 #ifndef TARGET_SPARC64
1055 case TT_WIN_OVF: /* window overflow */
1056 save_window(env);
1057 break;
1058 case TT_WIN_UNF: /* window underflow */
1059 restore_window(env);
1060 break;
1061 case TT_TFAULT:
1062 case TT_DFAULT:
1063 {
1064 info.si_signo = SIGSEGV;
1065 info.si_errno = 0;
1066 /* XXX: check env->error_code */
1067 info.si_code = TARGET_SEGV_MAPERR;
1068 info._sifields._sigfault._addr = env->mmuregs[4];
1069 queue_signal(env, info.si_signo, &info);
1070 }
1071 break;
1072 #else
1073 case TT_SPILL: /* window overflow */
1074 save_window(env);
1075 break;
1076 case TT_FILL: /* window underflow */
1077 restore_window(env);
1078 break;
1079 case TT_TFAULT:
1080 case TT_DFAULT:
1081 {
1082 info.si_signo = SIGSEGV;
1083 info.si_errno = 0;
1084 /* XXX: check env->error_code */
1085 info.si_code = TARGET_SEGV_MAPERR;
1086 if (trapnr == TT_DFAULT)
1087 info._sifields._sigfault._addr = env->dmmuregs[4];
1088 else
1089 info._sifields._sigfault._addr = cpu_tsptr(env)->tpc;
1090 queue_signal(env, info.si_signo, &info);
1091 }
1092 break;
1093 #ifndef TARGET_ABI32
1094 case 0x16e:
1095 flush_windows(env);
1096 sparc64_get_context(env);
1097 break;
1098 case 0x16f:
1099 flush_windows(env);
1100 sparc64_set_context(env);
1101 break;
1102 #endif
1103 #endif
1104 case EXCP_INTERRUPT:
1105 /* just indicate that signals should be handled asap */
1106 break;
1107 case EXCP_DEBUG:
1108 {
1109 int sig;
1110
1111 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1112 if (sig)
1113 {
1114 info.si_signo = sig;
1115 info.si_errno = 0;
1116 info.si_code = TARGET_TRAP_BRKPT;
1117 queue_signal(env, info.si_signo, &info);
1118 }
1119 }
1120 break;
1121 default:
1122 printf ("Unhandled trap: 0x%x\n", trapnr);
1123 cpu_dump_state(env, stderr, fprintf, 0);
1124 exit (1);
1125 }
1126 process_pending_signals (env);
1127 }
1128 }
1129
1130 #endif
1131
1132 #ifdef TARGET_PPC
1133 static inline uint64_t cpu_ppc_get_tb (CPUState *env)
1134 {
1135 /* TO FIX */
1136 return 0;
1137 }
1138
1139 uint64_t cpu_ppc_load_tbl (CPUState *env)
1140 {
1141 return cpu_ppc_get_tb(env);
1142 }
1143
1144 uint32_t cpu_ppc_load_tbu (CPUState *env)
1145 {
1146 return cpu_ppc_get_tb(env) >> 32;
1147 }
1148
1149 uint64_t cpu_ppc_load_atbl (CPUState *env)
1150 {
1151 return cpu_ppc_get_tb(env);
1152 }
1153
1154 uint32_t cpu_ppc_load_atbu (CPUState *env)
1155 {
1156 return cpu_ppc_get_tb(env) >> 32;
1157 }
1158
1159 uint32_t cpu_ppc601_load_rtcu (CPUState *env)
1160 __attribute__ (( alias ("cpu_ppc_load_tbu") ));
1161
1162 uint32_t cpu_ppc601_load_rtcl (CPUState *env)
1163 {
1164 return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
1165 }
1166
1167 /* XXX: to be fixed */
1168 int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, uint32_t *valp)
1169 {
1170 return -1;
1171 }
1172
1173 int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, uint32_t val)
1174 {
1175 return -1;
1176 }
1177
1178 #define EXCP_DUMP(env, fmt, ...) \
1179 do { \
1180 fprintf(stderr, fmt , ## __VA_ARGS__); \
1181 cpu_dump_state(env, stderr, fprintf, 0); \
1182 qemu_log(fmt, ## __VA_ARGS__); \
1183 if (logfile) \
1184 log_cpu_state(env, 0); \
1185 } while (0)
1186
1187 static int do_store_exclusive(CPUPPCState *env)
1188 {
1189 target_ulong addr;
1190 target_ulong page_addr;
1191 target_ulong val;
1192 int flags;
1193 int segv = 0;
1194
1195 addr = env->reserve_ea;
1196 page_addr = addr & TARGET_PAGE_MASK;
1197 start_exclusive();
1198 mmap_lock();
1199 flags = page_get_flags(page_addr);
1200 if ((flags & PAGE_READ) == 0) {
1201 segv = 1;
1202 } else {
1203 int reg = env->reserve_info & 0x1f;
1204 int size = (env->reserve_info >> 5) & 0xf;
1205 int stored = 0;
1206
1207 if (addr == env->reserve_addr) {
1208 switch (size) {
1209 case 1: segv = get_user_u8(val, addr); break;
1210 case 2: segv = get_user_u16(val, addr); break;
1211 case 4: segv = get_user_u32(val, addr); break;
1212 #if defined(TARGET_PPC64)
1213 case 8: segv = get_user_u64(val, addr); break;
1214 #endif
1215 default: abort();
1216 }
1217 if (!segv && val == env->reserve_val) {
1218 val = env->gpr[reg];
1219 switch (size) {
1220 case 1: segv = put_user_u8(val, addr); break;
1221 case 2: segv = put_user_u16(val, addr); break;
1222 case 4: segv = put_user_u32(val, addr); break;
1223 #if defined(TARGET_PPC64)
1224 case 8: segv = put_user_u64(val, addr); break;
1225 #endif
1226 default: abort();
1227 }
1228 if (!segv) {
1229 stored = 1;
1230 }
1231 }
1232 }
1233 env->crf[0] = (stored << 1) | xer_so;
1234 env->reserve_addr = (target_ulong)-1;
1235 }
1236 if (!segv) {
1237 env->nip += 4;
1238 }
1239 mmap_unlock();
1240 end_exclusive();
1241 return segv;
1242 }
1243
1244 void cpu_loop(CPUPPCState *env)
1245 {
1246 target_siginfo_t info;
1247 int trapnr;
1248 uint32_t ret;
1249
1250 for(;;) {
1251 cpu_exec_start(env);
1252 trapnr = cpu_ppc_exec(env);
1253 cpu_exec_end(env);
1254 switch(trapnr) {
1255 case POWERPC_EXCP_NONE:
1256 /* Just go on */
1257 break;
1258 case POWERPC_EXCP_CRITICAL: /* Critical input */
1259 cpu_abort(env, "Critical interrupt while in user mode. "
1260 "Aborting\n");
1261 break;
1262 case POWERPC_EXCP_MCHECK: /* Machine check exception */
1263 cpu_abort(env, "Machine check exception while in user mode. "
1264 "Aborting\n");
1265 break;
1266 case POWERPC_EXCP_DSI: /* Data storage exception */
1267 EXCP_DUMP(env, "Invalid data memory access: 0x" TARGET_FMT_lx "\n",
1268 env->spr[SPR_DAR]);
1269 /* XXX: check this. Seems bugged */
1270 switch (env->error_code & 0xFF000000) {
1271 case 0x40000000:
1272 info.si_signo = TARGET_SIGSEGV;
1273 info.si_errno = 0;
1274 info.si_code = TARGET_SEGV_MAPERR;
1275 break;
1276 case 0x04000000:
1277 info.si_signo = TARGET_SIGILL;
1278 info.si_errno = 0;
1279 info.si_code = TARGET_ILL_ILLADR;
1280 break;
1281 case 0x08000000:
1282 info.si_signo = TARGET_SIGSEGV;
1283 info.si_errno = 0;
1284 info.si_code = TARGET_SEGV_ACCERR;
1285 break;
1286 default:
1287 /* Let's send a regular segfault... */
1288 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1289 env->error_code);
1290 info.si_signo = TARGET_SIGSEGV;
1291 info.si_errno = 0;
1292 info.si_code = TARGET_SEGV_MAPERR;
1293 break;
1294 }
1295 info._sifields._sigfault._addr = env->nip;
1296 queue_signal(env, info.si_signo, &info);
1297 break;
1298 case POWERPC_EXCP_ISI: /* Instruction storage exception */
1299 EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" TARGET_FMT_lx
1300 "\n", env->spr[SPR_SRR0]);
1301 /* XXX: check this */
1302 switch (env->error_code & 0xFF000000) {
1303 case 0x40000000:
1304 info.si_signo = TARGET_SIGSEGV;
1305 info.si_errno = 0;
1306 info.si_code = TARGET_SEGV_MAPERR;
1307 break;
1308 case 0x10000000:
1309 case 0x08000000:
1310 info.si_signo = TARGET_SIGSEGV;
1311 info.si_errno = 0;
1312 info.si_code = TARGET_SEGV_ACCERR;
1313 break;
1314 default:
1315 /* Let's send a regular segfault... */
1316 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1317 env->error_code);
1318 info.si_signo = TARGET_SIGSEGV;
1319 info.si_errno = 0;
1320 info.si_code = TARGET_SEGV_MAPERR;
1321 break;
1322 }
1323 info._sifields._sigfault._addr = env->nip - 4;
1324 queue_signal(env, info.si_signo, &info);
1325 break;
1326 case POWERPC_EXCP_EXTERNAL: /* External input */
1327 cpu_abort(env, "External interrupt while in user mode. "
1328 "Aborting\n");
1329 break;
1330 case POWERPC_EXCP_ALIGN: /* Alignment exception */
1331 EXCP_DUMP(env, "Unaligned memory access\n");
1332 /* XXX: check this */
1333 info.si_signo = TARGET_SIGBUS;
1334 info.si_errno = 0;
1335 info.si_code = TARGET_BUS_ADRALN;
1336 info._sifields._sigfault._addr = env->nip - 4;
1337 queue_signal(env, info.si_signo, &info);
1338 break;
1339 case POWERPC_EXCP_PROGRAM: /* Program exception */
1340 /* XXX: check this */
1341 switch (env->error_code & ~0xF) {
1342 case POWERPC_EXCP_FP:
1343 EXCP_DUMP(env, "Floating point program exception\n");
1344 info.si_signo = TARGET_SIGFPE;
1345 info.si_errno = 0;
1346 switch (env->error_code & 0xF) {
1347 case POWERPC_EXCP_FP_OX:
1348 info.si_code = TARGET_FPE_FLTOVF;
1349 break;
1350 case POWERPC_EXCP_FP_UX:
1351 info.si_code = TARGET_FPE_FLTUND;
1352 break;
1353 case POWERPC_EXCP_FP_ZX:
1354 case POWERPC_EXCP_FP_VXZDZ:
1355 info.si_code = TARGET_FPE_FLTDIV;
1356 break;
1357 case POWERPC_EXCP_FP_XX:
1358 info.si_code = TARGET_FPE_FLTRES;
1359 break;
1360 case POWERPC_EXCP_FP_VXSOFT:
1361 info.si_code = TARGET_FPE_FLTINV;
1362 break;
1363 case POWERPC_EXCP_FP_VXSNAN:
1364 case POWERPC_EXCP_FP_VXISI:
1365 case POWERPC_EXCP_FP_VXIDI:
1366 case POWERPC_EXCP_FP_VXIMZ:
1367 case POWERPC_EXCP_FP_VXVC:
1368 case POWERPC_EXCP_FP_VXSQRT:
1369 case POWERPC_EXCP_FP_VXCVI:
1370 info.si_code = TARGET_FPE_FLTSUB;
1371 break;
1372 default:
1373 EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
1374 env->error_code);
1375 break;
1376 }
1377 break;
1378 case POWERPC_EXCP_INVAL:
1379 EXCP_DUMP(env, "Invalid instruction\n");
1380 info.si_signo = TARGET_SIGILL;
1381 info.si_errno = 0;
1382 switch (env->error_code & 0xF) {
1383 case POWERPC_EXCP_INVAL_INVAL:
1384 info.si_code = TARGET_ILL_ILLOPC;
1385 break;
1386 case POWERPC_EXCP_INVAL_LSWX:
1387 info.si_code = TARGET_ILL_ILLOPN;
1388 break;
1389 case POWERPC_EXCP_INVAL_SPR:
1390 info.si_code = TARGET_ILL_PRVREG;
1391 break;
1392 case POWERPC_EXCP_INVAL_FP:
1393 info.si_code = TARGET_ILL_COPROC;
1394 break;
1395 default:
1396 EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
1397 env->error_code & 0xF);
1398 info.si_code = TARGET_ILL_ILLADR;
1399 break;
1400 }
1401 break;
1402 case POWERPC_EXCP_PRIV:
1403 EXCP_DUMP(env, "Privilege violation\n");
1404 info.si_signo = TARGET_SIGILL;
1405 info.si_errno = 0;
1406 switch (env->error_code & 0xF) {
1407 case POWERPC_EXCP_PRIV_OPC:
1408 info.si_code = TARGET_ILL_PRVOPC;
1409 break;
1410 case POWERPC_EXCP_PRIV_REG:
1411 info.si_code = TARGET_ILL_PRVREG;
1412 break;
1413 default:
1414 EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
1415 env->error_code & 0xF);
1416 info.si_code = TARGET_ILL_PRVOPC;
1417 break;
1418 }
1419 break;
1420 case POWERPC_EXCP_TRAP:
1421 cpu_abort(env, "Tried to call a TRAP\n");
1422 break;
1423 default:
1424 /* Should not happen ! */
1425 cpu_abort(env, "Unknown program exception (%02x)\n",
1426 env->error_code);
1427 break;
1428 }
1429 info._sifields._sigfault._addr = env->nip - 4;
1430 queue_signal(env, info.si_signo, &info);
1431 break;
1432 case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
1433 EXCP_DUMP(env, "No floating point allowed\n");
1434 info.si_signo = TARGET_SIGILL;
1435 info.si_errno = 0;
1436 info.si_code = TARGET_ILL_COPROC;
1437 info._sifields._sigfault._addr = env->nip - 4;
1438 queue_signal(env, info.si_signo, &info);
1439 break;
1440 case POWERPC_EXCP_SYSCALL: /* System call exception */
1441 cpu_abort(env, "Syscall exception while in user mode. "
1442 "Aborting\n");
1443 break;
1444 case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
1445 EXCP_DUMP(env, "No APU instruction allowed\n");
1446 info.si_signo = TARGET_SIGILL;
1447 info.si_errno = 0;
1448 info.si_code = TARGET_ILL_COPROC;
1449 info._sifields._sigfault._addr = env->nip - 4;
1450 queue_signal(env, info.si_signo, &info);
1451 break;
1452 case POWERPC_EXCP_DECR: /* Decrementer exception */
1453 cpu_abort(env, "Decrementer interrupt while in user mode. "
1454 "Aborting\n");
1455 break;
1456 case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
1457 cpu_abort(env, "Fix interval timer interrupt while in user mode. "
1458 "Aborting\n");
1459 break;
1460 case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
1461 cpu_abort(env, "Watchdog timer interrupt while in user mode. "
1462 "Aborting\n");
1463 break;
1464 case POWERPC_EXCP_DTLB: /* Data TLB error */
1465 cpu_abort(env, "Data TLB exception while in user mode. "
1466 "Aborting\n");
1467 break;
1468 case POWERPC_EXCP_ITLB: /* Instruction TLB error */
1469 cpu_abort(env, "Instruction TLB exception while in user mode. "
1470 "Aborting\n");
1471 break;
1472 case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */
1473 EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
1474 info.si_signo = TARGET_SIGILL;
1475 info.si_errno = 0;
1476 info.si_code = TARGET_ILL_COPROC;
1477 info._sifields._sigfault._addr = env->nip - 4;
1478 queue_signal(env, info.si_signo, &info);
1479 break;
1480 case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */
1481 cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
1482 break;
1483 case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */
1484 cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
1485 break;
1486 case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */
1487 cpu_abort(env, "Performance monitor exception not handled\n");
1488 break;
1489 case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
1490 cpu_abort(env, "Doorbell interrupt while in user mode. "
1491 "Aborting\n");
1492 break;
1493 case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
1494 cpu_abort(env, "Doorbell critical interrupt while in user mode. "
1495 "Aborting\n");
1496 break;
1497 case POWERPC_EXCP_RESET: /* System reset exception */
1498 cpu_abort(env, "Reset interrupt while in user mode. "
1499 "Aborting\n");
1500 break;
1501 case POWERPC_EXCP_DSEG: /* Data segment exception */
1502 cpu_abort(env, "Data segment exception while in user mode. "
1503 "Aborting\n");
1504 break;
1505 case POWERPC_EXCP_ISEG: /* Instruction segment exception */
1506 cpu_abort(env, "Instruction segment exception "
1507 "while in user mode. Aborting\n");
1508 break;
1509 /* PowerPC 64 with hypervisor mode support */
1510 case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
1511 cpu_abort(env, "Hypervisor decrementer interrupt "
1512 "while in user mode. Aborting\n");
1513 break;
1514 case POWERPC_EXCP_TRACE: /* Trace exception */
1515 /* Nothing to do:
1516 * we use this exception to emulate step-by-step execution mode.
1517 */
1518 break;
1519 /* PowerPC 64 with hypervisor mode support */
1520 case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
1521 cpu_abort(env, "Hypervisor data storage exception "
1522 "while in user mode. Aborting\n");
1523 break;
1524 case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */
1525 cpu_abort(env, "Hypervisor instruction storage exception "
1526 "while in user mode. Aborting\n");
1527 break;
1528 case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
1529 cpu_abort(env, "Hypervisor data segment exception "
1530 "while in user mode. Aborting\n");
1531 break;
1532 case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */
1533 cpu_abort(env, "Hypervisor instruction segment exception "
1534 "while in user mode. Aborting\n");
1535 break;
1536 case POWERPC_EXCP_VPU: /* Vector unavailable exception */
1537 EXCP_DUMP(env, "No Altivec instructions allowed\n");
1538 info.si_signo = TARGET_SIGILL;
1539 info.si_errno = 0;
1540 info.si_code = TARGET_ILL_COPROC;
1541 info._sifields._sigfault._addr = env->nip - 4;
1542 queue_signal(env, info.si_signo, &info);
1543 break;
1544 case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */
1545 cpu_abort(env, "Programable interval timer interrupt "
1546 "while in user mode. Aborting\n");
1547 break;
1548 case POWERPC_EXCP_IO: /* IO error exception */
1549 cpu_abort(env, "IO error exception while in user mode. "
1550 "Aborting\n");
1551 break;
1552 case POWERPC_EXCP_RUNM: /* Run mode exception */
1553 cpu_abort(env, "Run mode exception while in user mode. "
1554 "Aborting\n");
1555 break;
1556 case POWERPC_EXCP_EMUL: /* Emulation trap exception */
1557 cpu_abort(env, "Emulation trap exception not handled\n");
1558 break;
1559 case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
1560 cpu_abort(env, "Instruction fetch TLB exception "
1561 "while in user-mode. Aborting");
1562 break;
1563 case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
1564 cpu_abort(env, "Data load TLB exception while in user-mode. "
1565 "Aborting");
1566 break;
1567 case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
1568 cpu_abort(env, "Data store TLB exception while in user-mode. "
1569 "Aborting");
1570 break;
1571 case POWERPC_EXCP_FPA: /* Floating-point assist exception */
1572 cpu_abort(env, "Floating-point assist exception not handled\n");
1573 break;
1574 case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
1575 cpu_abort(env, "Instruction address breakpoint exception "
1576 "not handled\n");
1577 break;
1578 case POWERPC_EXCP_SMI: /* System management interrupt */
1579 cpu_abort(env, "System management interrupt while in user mode. "
1580 "Aborting\n");
1581 break;
1582 case POWERPC_EXCP_THERM: /* Thermal interrupt */
1583 cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
1584 "Aborting\n");
1585 break;
1586 case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */
1587 cpu_abort(env, "Performance monitor exception not handled\n");
1588 break;
1589 case POWERPC_EXCP_VPUA: /* Vector assist exception */
1590 cpu_abort(env, "Vector assist exception not handled\n");
1591 break;
1592 case POWERPC_EXCP_SOFTP: /* Soft patch exception */
1593 cpu_abort(env, "Soft patch exception not handled\n");
1594 break;
1595 case POWERPC_EXCP_MAINT: /* Maintenance exception */
1596 cpu_abort(env, "Maintenance exception while in user mode. "
1597 "Aborting\n");
1598 break;
1599 case POWERPC_EXCP_STOP: /* stop translation */
1600 /* We did invalidate the instruction cache. Go on */
1601 break;
1602 case POWERPC_EXCP_BRANCH: /* branch instruction: */
1603 /* We just stopped because of a branch. Go on */
1604 break;
1605 case POWERPC_EXCP_SYSCALL_USER:
1606 /* system call in user-mode emulation */
1607 /* WARNING:
1608 * PPC ABI uses overflow flag in cr0 to signal an error
1609 * in syscalls.
1610 */
1611 #if 0
1612 printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
1613 env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
1614 #endif
1615 env->crf[0] &= ~0x1;
1616 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
1617 env->gpr[5], env->gpr[6], env->gpr[7],
1618 env->gpr[8], 0, 0);
1619 if (ret == (uint32_t)(-TARGET_QEMU_ESIGRETURN)) {
1620 /* Returning from a successful sigreturn syscall.
1621 Avoid corrupting register state. */
1622 break;
1623 }
1624 if (ret > (uint32_t)(-515)) {
1625 env->crf[0] |= 0x1;
1626 ret = -ret;
1627 }
1628 env->gpr[3] = ret;
1629 #if 0
1630 printf("syscall returned 0x%08x (%d)\n", ret, ret);
1631 #endif
1632 break;
1633 case POWERPC_EXCP_STCX:
1634 if (do_store_exclusive(env)) {
1635 info.si_signo = TARGET_SIGSEGV;
1636 info.si_errno = 0;
1637 info.si_code = TARGET_SEGV_MAPERR;
1638 info._sifields._sigfault._addr = env->nip;
1639 queue_signal(env, info.si_signo, &info);
1640 }
1641 break;
1642 case EXCP_DEBUG:
1643 {
1644 int sig;
1645
1646 sig = gdb_handlesig(env, TARGET_SIGTRAP);
1647 if (sig) {
1648 info.si_signo = sig;
1649 info.si_errno = 0;
1650 info.si_code = TARGET_TRAP_BRKPT;
1651 queue_signal(env, info.si_signo, &info);
1652 }
1653 }
1654 break;
1655 case EXCP_INTERRUPT:
1656 /* just indicate that signals should be handled asap */
1657 break;
1658 default:
1659 cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
1660 break;
1661 }
1662 process_pending_signals(env);
1663 }
1664 }
1665 #endif
1666
1667 #ifdef TARGET_MIPS
1668
1669 #define MIPS_SYS(name, args) args,
1670
1671 static const uint8_t mips_syscall_args[] = {
1672 MIPS_SYS(sys_syscall , 0) /* 4000 */
1673 MIPS_SYS(sys_exit , 1)
1674 MIPS_SYS(sys_fork , 0)
1675 MIPS_SYS(sys_read , 3)
1676 MIPS_SYS(sys_write , 3)
1677 MIPS_SYS(sys_open , 3) /* 4005 */
1678 MIPS_SYS(sys_close , 1)
1679 MIPS_SYS(sys_waitpid , 3)
1680 MIPS_SYS(sys_creat , 2)
1681 MIPS_SYS(sys_link , 2)
1682 MIPS_SYS(sys_unlink , 1) /* 4010 */
1683 MIPS_SYS(sys_execve , 0)
1684 MIPS_SYS(sys_chdir , 1)
1685 MIPS_SYS(sys_time , 1)
1686 MIPS_SYS(sys_mknod , 3)
1687 MIPS_SYS(sys_chmod , 2) /* 4015 */
1688 MIPS_SYS(sys_lchown , 3)
1689 MIPS_SYS(sys_ni_syscall , 0)
1690 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1691 MIPS_SYS(sys_lseek , 3)
1692 MIPS_SYS(sys_getpid , 0) /* 4020 */
1693 MIPS_SYS(sys_mount , 5)
1694 MIPS_SYS(sys_oldumount , 1)
1695 MIPS_SYS(sys_setuid , 1)
1696 MIPS_SYS(sys_getuid , 0)
1697 MIPS_SYS(sys_stime , 1) /* 4025 */
1698 MIPS_SYS(sys_ptrace , 4)
1699 MIPS_SYS(sys_alarm , 1)
1700 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1701 MIPS_SYS(sys_pause , 0)
1702 MIPS_SYS(sys_utime , 2) /* 4030 */
1703 MIPS_SYS(sys_ni_syscall , 0)
1704 MIPS_SYS(sys_ni_syscall , 0)
1705 MIPS_SYS(sys_access , 2)
1706 MIPS_SYS(sys_nice , 1)
1707 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1708 MIPS_SYS(sys_sync , 0)
1709 MIPS_SYS(sys_kill , 2)
1710 MIPS_SYS(sys_rename , 2)
1711 MIPS_SYS(sys_mkdir , 2)
1712 MIPS_SYS(sys_rmdir , 1) /* 4040 */
1713 MIPS_SYS(sys_dup , 1)
1714 MIPS_SYS(sys_pipe , 0)
1715 MIPS_SYS(sys_times , 1)
1716 MIPS_SYS(sys_ni_syscall , 0)
1717 MIPS_SYS(sys_brk , 1) /* 4045 */
1718 MIPS_SYS(sys_setgid , 1)
1719 MIPS_SYS(sys_getgid , 0)
1720 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1721 MIPS_SYS(sys_geteuid , 0)
1722 MIPS_SYS(sys_getegid , 0) /* 4050 */
1723 MIPS_SYS(sys_acct , 0)
1724 MIPS_SYS(sys_umount , 2)
1725 MIPS_SYS(sys_ni_syscall , 0)
1726 MIPS_SYS(sys_ioctl , 3)
1727 MIPS_SYS(sys_fcntl , 3) /* 4055 */
1728 MIPS_SYS(sys_ni_syscall , 2)
1729 MIPS_SYS(sys_setpgid , 2)
1730 MIPS_SYS(sys_ni_syscall , 0)
1731 MIPS_SYS(sys_olduname , 1)
1732 MIPS_SYS(sys_umask , 1) /* 4060 */
1733 MIPS_SYS(sys_chroot , 1)
1734 MIPS_SYS(sys_ustat , 2)
1735 MIPS_SYS(sys_dup2 , 2)
1736 MIPS_SYS(sys_getppid , 0)
1737 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1738 MIPS_SYS(sys_setsid , 0)
1739 MIPS_SYS(sys_sigaction , 3)
1740 MIPS_SYS(sys_sgetmask , 0)
1741 MIPS_SYS(sys_ssetmask , 1)
1742 MIPS_SYS(sys_setreuid , 2) /* 4070 */
1743 MIPS_SYS(sys_setregid , 2)
1744 MIPS_SYS(sys_sigsuspend , 0)
1745 MIPS_SYS(sys_sigpending , 1)
1746 MIPS_SYS(sys_sethostname , 2)
1747 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1748 MIPS_SYS(sys_getrlimit , 2)
1749 MIPS_SYS(sys_getrusage , 2)
1750 MIPS_SYS(sys_gettimeofday, 2)
1751 MIPS_SYS(sys_settimeofday, 2)
1752 MIPS_SYS(sys_getgroups , 2) /* 4080 */
1753 MIPS_SYS(sys_setgroups , 2)
1754 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1755 MIPS_SYS(sys_symlink , 2)
1756 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1757 MIPS_SYS(sys_readlink , 3) /* 4085 */
1758 MIPS_SYS(sys_uselib , 1)
1759 MIPS_SYS(sys_swapon , 2)
1760 MIPS_SYS(sys_reboot , 3)
1761 MIPS_SYS(old_readdir , 3)
1762 MIPS_SYS(old_mmap , 6) /* 4090 */
1763 MIPS_SYS(sys_munmap , 2)
1764 MIPS_SYS(sys_truncate , 2)
1765 MIPS_SYS(sys_ftruncate , 2)
1766 MIPS_SYS(sys_fchmod , 2)
1767 MIPS_SYS(sys_fchown , 3) /* 4095 */
1768 MIPS_SYS(sys_getpriority , 2)
1769 MIPS_SYS(sys_setpriority , 3)
1770 MIPS_SYS(sys_ni_syscall , 0)
1771 MIPS_SYS(sys_statfs , 2)
1772 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1773 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1774 MIPS_SYS(sys_socketcall , 2)
1775 MIPS_SYS(sys_syslog , 3)
1776 MIPS_SYS(sys_setitimer , 3)
1777 MIPS_SYS(sys_getitimer , 2) /* 4105 */
1778 MIPS_SYS(sys_newstat , 2)
1779 MIPS_SYS(sys_newlstat , 2)
1780 MIPS_SYS(sys_newfstat , 2)
1781 MIPS_SYS(sys_uname , 1)
1782 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1783 MIPS_SYS(sys_vhangup , 0)
1784 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1785 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1786 MIPS_SYS(sys_wait4 , 4)
1787 MIPS_SYS(sys_swapoff , 1) /* 4115 */
1788 MIPS_SYS(sys_sysinfo , 1)
1789 MIPS_SYS(sys_ipc , 6)
1790 MIPS_SYS(sys_fsync , 1)
1791 MIPS_SYS(sys_sigreturn , 0)
1792 MIPS_SYS(sys_clone , 6) /* 4120 */
1793 MIPS_SYS(sys_setdomainname, 2)
1794 MIPS_SYS(sys_newuname , 1)
1795 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1796 MIPS_SYS(sys_adjtimex , 1)
1797 MIPS_SYS(sys_mprotect , 3) /* 4125 */
1798 MIPS_SYS(sys_sigprocmask , 3)
1799 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1800 MIPS_SYS(sys_init_module , 5)
1801 MIPS_SYS(sys_delete_module, 1)
1802 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1803 MIPS_SYS(sys_quotactl , 0)
1804 MIPS_SYS(sys_getpgid , 1)
1805 MIPS_SYS(sys_fchdir , 1)
1806 MIPS_SYS(sys_bdflush , 2)
1807 MIPS_SYS(sys_sysfs , 3) /* 4135 */
1808 MIPS_SYS(sys_personality , 1)
1809 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1810 MIPS_SYS(sys_setfsuid , 1)
1811 MIPS_SYS(sys_setfsgid , 1)
1812 MIPS_SYS(sys_llseek , 5) /* 4140 */
1813 MIPS_SYS(sys_getdents , 3)
1814 MIPS_SYS(sys_select , 5)
1815 MIPS_SYS(sys_flock , 2)
1816 MIPS_SYS(sys_msync , 3)
1817 MIPS_SYS(sys_readv , 3) /* 4145 */
1818 MIPS_SYS(sys_writev , 3)
1819 MIPS_SYS(sys_cacheflush , 3)
1820 MIPS_SYS(sys_cachectl , 3)
1821 MIPS_SYS(sys_sysmips , 4)
1822 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1823 MIPS_SYS(sys_getsid , 1)
1824 MIPS_SYS(sys_fdatasync , 0)
1825 MIPS_SYS(sys_sysctl , 1)
1826 MIPS_SYS(sys_mlock , 2)
1827 MIPS_SYS(sys_munlock , 2) /* 4155 */
1828 MIPS_SYS(sys_mlockall , 1)
1829 MIPS_SYS(sys_munlockall , 0)
1830 MIPS_SYS(sys_sched_setparam, 2)
1831 MIPS_SYS(sys_sched_getparam, 2)
1832 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1833 MIPS_SYS(sys_sched_getscheduler, 1)
1834 MIPS_SYS(sys_sched_yield , 0)
1835 MIPS_SYS(sys_sched_get_priority_max, 1)
1836 MIPS_SYS(sys_sched_get_priority_min, 1)
1837 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1838 MIPS_SYS(sys_nanosleep, 2)
1839 MIPS_SYS(sys_mremap , 4)
1840 MIPS_SYS(sys_accept , 3)
1841 MIPS_SYS(sys_bind , 3)
1842 MIPS_SYS(sys_connect , 3) /* 4170 */
1843 MIPS_SYS(sys_getpeername , 3)
1844 MIPS_SYS(sys_getsockname , 3)
1845 MIPS_SYS(sys_getsockopt , 5)
1846 MIPS_SYS(sys_listen , 2)
1847 MIPS_SYS(sys_recv , 4) /* 4175 */
1848 MIPS_SYS(sys_recvfrom , 6)
1849 MIPS_SYS(sys_recvmsg , 3)
1850 MIPS_SYS(sys_send , 4)
1851 MIPS_SYS(sys_sendmsg , 3)
1852 MIPS_SYS(sys_sendto , 6) /* 4180 */
1853 MIPS_SYS(sys_setsockopt , 5)
1854 MIPS_SYS(sys_shutdown , 2)
1855 MIPS_SYS(sys_socket , 3)
1856 MIPS_SYS(sys_socketpair , 4)
1857 MIPS_SYS(sys_setresuid , 3) /* 4185 */
1858 MIPS_SYS(sys_getresuid , 3)
1859 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1860 MIPS_SYS(sys_poll , 3)
1861 MIPS_SYS(sys_nfsservctl , 3)
1862 MIPS_SYS(sys_setresgid , 3) /* 4190 */
1863 MIPS_SYS(sys_getresgid , 3)
1864 MIPS_SYS(sys_prctl , 5)
1865 MIPS_SYS(sys_rt_sigreturn, 0)
1866 MIPS_SYS(sys_rt_sigaction, 4)
1867 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1868 MIPS_SYS(sys_rt_sigpending, 2)
1869 MIPS_SYS(sys_rt_sigtimedwait, 4)
1870 MIPS_SYS(sys_rt_sigqueueinfo, 3)
1871 MIPS_SYS(sys_rt_sigsuspend, 0)
1872 MIPS_SYS(sys_pread64 , 6) /* 4200 */
1873 MIPS_SYS(sys_pwrite64 , 6)
1874 MIPS_SYS(sys_chown , 3)
1875 MIPS_SYS(sys_getcwd , 2)
1876 MIPS_SYS(sys_capget , 2)
1877 MIPS_SYS(sys_capset , 2) /* 4205 */
1878 MIPS_SYS(sys_sigaltstack , 2)
1879 MIPS_SYS(sys_sendfile , 4)
1880 MIPS_SYS(sys_ni_syscall , 0)
1881 MIPS_SYS(sys_ni_syscall , 0)
1882 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
1883 MIPS_SYS(sys_truncate64 , 4)
1884 MIPS_SYS(sys_ftruncate64 , 4)
1885 MIPS_SYS(sys_stat64 , 2)
1886 MIPS_SYS(sys_lstat64 , 2)
1887 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
1888 MIPS_SYS(sys_pivot_root , 2)
1889 MIPS_SYS(sys_mincore , 3)
1890 MIPS_SYS(sys_madvise , 3)
1891 MIPS_SYS(sys_getdents64 , 3)
1892 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
1893 MIPS_SYS(sys_ni_syscall , 0)
1894 MIPS_SYS(sys_gettid , 0)
1895 MIPS_SYS(sys_readahead , 5)
1896 MIPS_SYS(sys_setxattr , 5)
1897 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
1898 MIPS_SYS(sys_fsetxattr , 5)
1899 MIPS_SYS(sys_getxattr , 4)
1900 MIPS_SYS(sys_lgetxattr , 4)
1901 MIPS_SYS(sys_fgetxattr , 4)
1902 MIPS_SYS(sys_listxattr , 3) /* 4230 */
1903 MIPS_SYS(sys_llistxattr , 3)
1904 MIPS_SYS(sys_flistxattr , 3)
1905 MIPS_SYS(sys_removexattr , 2)
1906 MIPS_SYS(sys_lremovexattr, 2)
1907 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
1908 MIPS_SYS(sys_tkill , 2)
1909 MIPS_SYS(sys_sendfile64 , 5)
1910 MIPS_SYS(sys_futex , 2)
1911 MIPS_SYS(sys_sched_setaffinity, 3)
1912 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
1913 MIPS_SYS(sys_io_setup , 2)
1914 MIPS_SYS(sys_io_destroy , 1)
1915 MIPS_SYS(sys_io_getevents, 5)
1916 MIPS_SYS(sys_io_submit , 3)
1917 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
1918 MIPS_SYS(sys_exit_group , 1)
1919 MIPS_SYS(sys_lookup_dcookie, 3)
1920 MIPS_SYS(sys_epoll_create, 1)
1921 MIPS_SYS(sys_epoll_ctl , 4)
1922 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
1923 MIPS_SYS(sys_remap_file_pages, 5)
1924 MIPS_SYS(sys_set_tid_address, 1)
1925 MIPS_SYS(sys_restart_syscall, 0)
1926 MIPS_SYS(sys_fadvise64_64, 7)
1927 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
1928 MIPS_SYS(sys_fstatfs64 , 2)
1929 MIPS_SYS(sys_timer_create, 3)
1930 MIPS_SYS(sys_timer_settime, 4)
1931 MIPS_SYS(sys_timer_gettime, 2)
1932 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
1933 MIPS_SYS(sys_timer_delete, 1)
1934 MIPS_SYS(sys_clock_settime, 2)
1935 MIPS_SYS(sys_clock_gettime, 2)
1936 MIPS_SYS(sys_clock_getres, 2)
1937 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
1938 MIPS_SYS(sys_tgkill , 3)
1939 MIPS_SYS(sys_utimes , 2)
1940 MIPS_SYS(sys_mbind , 4)
1941 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
1942 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
1943 MIPS_SYS(sys_mq_open , 4)
1944 MIPS_SYS(sys_mq_unlink , 1)
1945 MIPS_SYS(sys_mq_timedsend, 5)
1946 MIPS_SYS(sys_mq_timedreceive, 5)
1947 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
1948 MIPS_SYS(sys_mq_getsetattr, 3)
1949 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
1950 MIPS_SYS(sys_waitid , 4)
1951 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
1952 MIPS_SYS(sys_add_key , 5)
1953 MIPS_SYS(sys_request_key, 4)
1954 MIPS_SYS(sys_keyctl , 5)
1955 MIPS_SYS(sys_set_thread_area, 1)
1956 MIPS_SYS(sys_inotify_init, 0)
1957 MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
1958 MIPS_SYS(sys_inotify_rm_watch, 2)
1959 MIPS_SYS(sys_migrate_pages, 4)
1960 MIPS_SYS(sys_openat, 4)
1961 MIPS_SYS(sys_mkdirat, 3)
1962 MIPS_SYS(sys_mknodat, 4) /* 4290 */
1963 MIPS_SYS(sys_fchownat, 5)
1964 MIPS_SYS(sys_futimesat, 3)
1965 MIPS_SYS(sys_fstatat64, 4)
1966 MIPS_SYS(sys_unlinkat, 3)
1967 MIPS_SYS(sys_renameat, 4) /* 4295 */
1968 MIPS_SYS(sys_linkat, 5)
1969 MIPS_SYS(sys_symlinkat, 3)
1970 MIPS_SYS(sys_readlinkat, 4)
1971 MIPS_SYS(sys_fchmodat, 3)
1972 MIPS_SYS(sys_faccessat, 3) /* 4300 */
1973 MIPS_SYS(sys_pselect6, 6)
1974 MIPS_SYS(sys_ppoll, 5)
1975 MIPS_SYS(sys_unshare, 1)
1976 MIPS_SYS(sys_splice, 4)
1977 MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
1978 MIPS_SYS(sys_tee, 4)
1979 MIPS_SYS(sys_vmsplice, 4)
1980 MIPS_SYS(sys_move_pages, 6)
1981 MIPS_SYS(sys_set_robust_list, 2)
1982 MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
1983 MIPS_SYS(sys_kexec_load, 4)
1984 MIPS_SYS(sys_getcpu, 3)
1985 MIPS_SYS(sys_epoll_pwait, 6)
1986 MIPS_SYS(sys_ioprio_set, 3)
1987 MIPS_SYS(sys_ioprio_get, 2)
1988 MIPS_SYS(sys_utimensat, 4)
1989 MIPS_SYS(sys_signalfd, 3)
1990 MIPS_SYS(sys_ni_syscall, 0) /* was timerfd */
1991 MIPS_SYS(sys_eventfd, 1)
1992 MIPS_SYS(sys_fallocate, 6) /* 4320 */
1993 MIPS_SYS(sys_timerfd_create, 2)
1994 MIPS_SYS(sys_timerfd_gettime, 2)
1995 MIPS_SYS(sys_timerfd_settime, 4)
1996 MIPS_SYS(sys_signalfd4, 4)
1997 MIPS_SYS(sys_eventfd2, 2) /* 4325 */
1998 MIPS_SYS(sys_epoll_create1, 1)
1999 MIPS_SYS(sys_dup3, 3)
2000 MIPS_SYS(sys_pipe2, 2)
2001 MIPS_SYS(sys_inotify_init1, 1)
2002 MIPS_SYS(sys_preadv, 6) /* 4330 */
2003 MIPS_SYS(sys_pwritev, 6)
2004 MIPS_SYS(sys_rt_tgsigqueueinfo, 4)
2005 MIPS_SYS(sys_perf_event_open, 5)
2006 MIPS_SYS(sys_accept4, 4)
2007 MIPS_SYS(sys_recvmmsg, 5) /* 4335 */
2008 MIPS_SYS(sys_fanotify_init, 2)
2009 MIPS_SYS(sys_fanotify_mark, 6)
2010 MIPS_SYS(sys_prlimit64, 4)
2011 MIPS_SYS(sys_name_to_handle_at, 5)
2012 MIPS_SYS(sys_open_by_handle_at, 3) /* 4340 */
2013 MIPS_SYS(sys_clock_adjtime, 2)
2014 MIPS_SYS(sys_syncfs, 1)
2015 };
2016
2017 #undef MIPS_SYS
2018
2019 static int do_store_exclusive(CPUMIPSState *env)
2020 {
2021 target_ulong addr;
2022 target_ulong page_addr;
2023 target_ulong val;
2024 int flags;
2025 int segv = 0;
2026 int reg;
2027 int d;
2028
2029 addr = env->lladdr;
2030 page_addr = addr & TARGET_PAGE_MASK;
2031 start_exclusive();
2032 mmap_lock();
2033 flags = page_get_flags(page_addr);
2034 if ((flags & PAGE_READ) == 0) {
2035 segv = 1;
2036 } else {
2037 reg = env->llreg & 0x1f;
2038 d = (env->llreg & 0x20) != 0;
2039 if (d) {
2040 segv = get_user_s64(val, addr);
2041 } else {
2042 segv = get_user_s32(val, addr);
2043 }
2044 if (!segv) {
2045 if (val != env->llval) {
2046 env->active_tc.gpr[reg] = 0;
2047 } else {
2048 if (d) {
2049 segv = put_user_u64(env->llnewval, addr);
2050 } else {
2051 segv = put_user_u32(env->llnewval, addr);
2052 }
2053 if (!segv) {
2054 env->active_tc.gpr[reg] = 1;
2055 }
2056 }
2057 }
2058 }
2059 env->lladdr = -1;
2060 if (!segv) {
2061 env->active_tc.PC += 4;
2062 }
2063 mmap_unlock();
2064 end_exclusive();
2065 return segv;
2066 }
2067
2068 void cpu_loop(CPUMIPSState *env)
2069 {
2070 target_siginfo_t info;
2071 int trapnr, ret;
2072 unsigned int syscall_num;
2073
2074 for(;;) {
2075 cpu_exec_start(env);
2076 trapnr = cpu_mips_exec(env);
2077 cpu_exec_end(env);
2078 switch(trapnr) {
2079 case EXCP_SYSCALL:
2080 syscall_num = env->active_tc.gpr[2] - 4000;
2081 env->active_tc.PC += 4;
2082 if (syscall_num >= sizeof(mips_syscall_args)) {
2083 ret = -TARGET_ENOSYS;
2084 } else {
2085 int nb_args;
2086 abi_ulong sp_reg;
2087 abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
2088
2089 nb_args = mips_syscall_args[syscall_num];
2090 sp_reg = env->active_tc.gpr[29];
2091 switch (nb_args) {
2092 /* these arguments are taken from the stack */
2093 /* FIXME - what to do if get_user() fails? */
2094 case 8: get_user_ual(arg8, sp_reg + 28);
2095 case 7: get_user_ual(arg7, sp_reg + 24);
2096 case 6: get_user_ual(arg6, sp_reg + 20);
2097 case 5: get_user_ual(arg5, sp_reg + 16);
2098 default:
2099 break;
2100 }
2101 ret = do_syscall(env, env->active_tc.gpr[2],
2102 env->active_tc.gpr[4],
2103 env->active_tc.gpr[5],
2104 env->active_tc.gpr[6],
2105 env->active_tc.gpr[7],
2106 arg5, arg6, arg7, arg8);
2107 }
2108 if (ret == -TARGET_QEMU_ESIGRETURN) {
2109 /* Returning from a successful sigreturn syscall.
2110 Avoid clobbering register state. */
2111 break;
2112 }
2113 if ((unsigned int)ret >= (unsigned int)(-1133)) {
2114 env->active_tc.gpr[7] = 1; /* error flag */
2115 ret = -ret;
2116 } else {
2117 env->active_tc.gpr[7] = 0; /* error flag */
2118 }
2119 env->active_tc.gpr[2] = ret;
2120 break;
2121 case EXCP_TLBL:
2122 case EXCP_TLBS:
2123 case EXCP_AdEL:
2124 case EXCP_AdES:
2125 info.si_signo = TARGET_SIGSEGV;
2126 info.si_errno = 0;
2127 /* XXX: check env->error_code */
2128 info.si_code = TARGET_SEGV_MAPERR;
2129 info._sifields._sigfault._addr = env->CP0_BadVAddr;
2130 queue_signal(env, info.si_signo, &info);
2131 break;
2132 case EXCP_CpU:
2133 case EXCP_RI:
2134 info.si_signo = TARGET_SIGILL;
2135 info.si_errno = 0;
2136 info.si_code = 0;
2137 queue_signal(env, info.si_signo, &info);
2138 break;
2139 case EXCP_INTERRUPT:
2140 /* just indicate that signals should be handled asap */
2141 break;
2142 case EXCP_DEBUG:
2143 {
2144 int sig;
2145
2146 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2147 if (sig)
2148 {
2149 info.si_signo = sig;
2150 info.si_errno = 0;
2151 info.si_code = TARGET_TRAP_BRKPT;
2152 queue_signal(env, info.si_signo, &info);
2153 }
2154 }
2155 break;
2156 case EXCP_SC:
2157 if (do_store_exclusive(env)) {
2158 info.si_signo = TARGET_SIGSEGV;
2159 info.si_errno = 0;
2160 info.si_code = TARGET_SEGV_MAPERR;
2161 info._sifields._sigfault._addr = env->active_tc.PC;
2162 queue_signal(env, info.si_signo, &info);
2163 }
2164 break;
2165 default:
2166 // error:
2167 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
2168 trapnr);
2169 cpu_dump_state(env, stderr, fprintf, 0);
2170 abort();
2171 }
2172 process_pending_signals(env);
2173 }
2174 }
2175 #endif
2176
2177 #ifdef TARGET_SH4
2178 void cpu_loop (CPUState *env)
2179 {
2180 int trapnr, ret;
2181 target_siginfo_t info;
2182
2183 while (1) {
2184 trapnr = cpu_sh4_exec (env);
2185
2186 switch (trapnr) {
2187 case 0x160:
2188 env->pc += 2;
2189 ret = do_syscall(env,
2190 env->gregs[3],
2191 env->gregs[4],
2192 env->gregs[5],
2193 env->gregs[6],
2194 env->gregs[7],
2195 env->gregs[0],
2196 env->gregs[1],
2197 0, 0);
2198 env->gregs[0] = ret;
2199 break;
2200 case EXCP_INTERRUPT:
2201 /* just indicate that signals should be handled asap */
2202 break;
2203 case EXCP_DEBUG:
2204 {
2205 int sig;
2206
2207 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2208 if (sig)
2209 {
2210 info.si_signo = sig;
2211 info.si_errno = 0;
2212 info.si_code = TARGET_TRAP_BRKPT;
2213 queue_signal(env, info.si_signo, &info);
2214 }
2215 }
2216 break;
2217 case 0xa0:
2218 case 0xc0:
2219 info.si_signo = SIGSEGV;
2220 info.si_errno = 0;
2221 info.si_code = TARGET_SEGV_MAPERR;
2222 info._sifields._sigfault._addr = env->tea;
2223 queue_signal(env, info.si_signo, &info);
2224 break;
2225
2226 default:
2227 printf ("Unhandled trap: 0x%x\n", trapnr);
2228 cpu_dump_state(env, stderr, fprintf, 0);
2229 exit (1);
2230 }
2231 process_pending_signals (env);
2232 }
2233 }
2234 #endif
2235
2236 #ifdef TARGET_CRIS
2237 void cpu_loop (CPUState *env)
2238 {
2239 int trapnr, ret;
2240 target_siginfo_t info;
2241
2242 while (1) {
2243 trapnr = cpu_cris_exec (env);
2244 switch (trapnr) {
2245 case 0xaa:
2246 {
2247 info.si_signo = SIGSEGV;
2248 info.si_errno = 0;
2249 /* XXX: check env->error_code */
2250 info.si_code = TARGET_SEGV_MAPERR;
2251 info._sifields._sigfault._addr = env->pregs[PR_EDA];
2252 queue_signal(env, info.si_signo, &info);
2253 }
2254 break;
2255 case EXCP_INTERRUPT:
2256 /* just indicate that signals should be handled asap */
2257 break;
2258 case EXCP_BREAK:
2259 ret = do_syscall(env,
2260 env->regs[9],
2261 env->regs[10],
2262 env->regs[11],
2263 env->regs[12],
2264 env->regs[13],
2265 env->pregs[7],
2266 env->pregs[11],
2267 0, 0);
2268 env->regs[10] = ret;
2269 break;
2270 case EXCP_DEBUG:
2271 {
2272 int sig;
2273
2274 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2275 if (sig)
2276 {
2277 info.si_signo = sig;
2278 info.si_errno = 0;
2279 info.si_code = TARGET_TRAP_BRKPT;
2280 queue_signal(env, info.si_signo, &info);
2281 }
2282 }
2283 break;
2284 default:
2285 printf ("Unhandled trap: 0x%x\n", trapnr);
2286 cpu_dump_state(env, stderr, fprintf, 0);
2287 exit (1);
2288 }
2289 process_pending_signals (env);
2290 }
2291 }
2292 #endif
2293
2294 #ifdef TARGET_MICROBLAZE
2295 void cpu_loop (CPUState *env)
2296 {
2297 int trapnr, ret;
2298 target_siginfo_t info;
2299
2300 while (1) {
2301 trapnr = cpu_mb_exec (env);
2302 switch (trapnr) {
2303 case 0xaa:
2304 {
2305 info.si_signo = SIGSEGV;
2306 info.si_errno = 0;
2307 /* XXX: check env->error_code */
2308 info.si_code = TARGET_SEGV_MAPERR;
2309 info._sifields._sigfault._addr = 0;
2310 queue_signal(env, info.si_signo, &info);
2311 }
2312 break;
2313 case EXCP_INTERRUPT:
2314 /* just indicate that signals should be handled asap */
2315 break;
2316 case EXCP_BREAK:
2317 /* Return address is 4 bytes after the call. */
2318 env->regs[14] += 4;
2319 ret = do_syscall(env,
2320 env->regs[12],
2321 env->regs[5],
2322 env->regs[6],
2323 env->regs[7],
2324 env->regs[8],
2325 env->regs[9],
2326 env->regs[10],
2327 0, 0);
2328 env->regs[3] = ret;
2329 env->sregs[SR_PC] = env->regs[14];
2330 break;
2331 case EXCP_HW_EXCP:
2332 env->regs[17] = env->sregs[SR_PC] + 4;
2333 if (env->iflags & D_FLAG) {
2334 env->sregs[SR_ESR] |= 1 << 12;
2335 env->sregs[SR_PC] -= 4;
2336 /* FIXME: if branch was immed, replay the imm aswell. */
2337 }
2338
2339 env->iflags &= ~(IMM_FLAG | D_FLAG);
2340
2341 switch (env->sregs[SR_ESR] & 31) {
2342 case ESR_EC_FPU:
2343 info.si_signo = SIGFPE;
2344 info.si_errno = 0;
2345 if (env->sregs[SR_FSR] & FSR_IO) {
2346 info.si_code = TARGET_FPE_FLTINV;
2347 }
2348 if (env->sregs[SR_FSR] & FSR_DZ) {
2349 info.si_code = TARGET_FPE_FLTDIV;
2350 }
2351 info._sifields._sigfault._addr = 0;
2352 queue_signal(env, info.si_signo, &info);
2353 break;
2354 default:
2355 printf ("Unhandled hw-exception: 0x%x\n",
2356 env->sregs[SR_ESR] & ESR_EC_MASK);
2357 cpu_dump_state(env, stderr, fprintf, 0);
2358 exit (1);
2359 break;
2360 }
2361 break;
2362 case EXCP_DEBUG:
2363 {
2364 int sig;
2365
2366 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2367 if (sig)
2368 {
2369 info.si_signo = sig;
2370 info.si_errno = 0;
2371 info.si_code = TARGET_TRAP_BRKPT;
2372 queue_signal(env, info.si_signo, &info);
2373 }
2374 }
2375 break;
2376 default:
2377 printf ("Unhandled trap: 0x%x\n", trapnr);
2378 cpu_dump_state(env, stderr, fprintf, 0);
2379 exit (1);
2380 }
2381 process_pending_signals (env);
2382 }
2383 }
2384 #endif
2385
2386 #ifdef TARGET_M68K
2387
2388 void cpu_loop(CPUM68KState *env)
2389 {
2390 int trapnr;
2391 unsigned int n;
2392 target_siginfo_t info;
2393 TaskState *ts = env->opaque;
2394
2395 for(;;) {
2396 trapnr = cpu_m68k_exec(env);
2397 switch(trapnr) {
2398 case EXCP_ILLEGAL:
2399 {
2400 if (ts->sim_syscalls) {
2401 uint16_t nr;
2402 nr = lduw(env->pc + 2);
2403 env->pc += 4;
2404 do_m68k_simcall(env, nr);
2405 } else {
2406 goto do_sigill;
2407 }
2408 }
2409 break;
2410 case EXCP_HALT_INSN:
2411 /* Semihosing syscall. */
2412 env->pc += 4;
2413 do_m68k_semihosting(env, env->dregs[0]);
2414 break;
2415 case EXCP_LINEA:
2416 case EXCP_LINEF:
2417 case EXCP_UNSUPPORTED:
2418 do_sigill:
2419 info.si_signo = SIGILL;
2420 info.si_errno = 0;
2421 info.si_code = TARGET_ILL_ILLOPN;
2422 info._sifields._sigfault._addr = env->pc;
2423 queue_signal(env, info.si_signo, &info);
2424 break;
2425 case EXCP_TRAP0:
2426 {
2427 ts->sim_syscalls = 0;
2428 n = env->dregs[0];
2429 env->pc += 2;
2430 env->dregs[0] = do_syscall(env,
2431 n,
2432 env->dregs[1],
2433 env->dregs[2],
2434 env->dregs[3],
2435 env->dregs[4],
2436 env->dregs[5],
2437 env->aregs[0],
2438 0, 0);
2439 }
2440 break;
2441 case EXCP_INTERRUPT:
2442 /* just indicate that signals should be handled asap */
2443 break;
2444 case EXCP_ACCESS:
2445 {
2446 info.si_signo = SIGSEGV;
2447 info.si_errno = 0;
2448 /* XXX: check env->error_code */
2449 info.si_code = TARGET_SEGV_MAPERR;
2450 info._sifields._sigfault._addr = env->mmu.ar;
2451 queue_signal(env, info.si_signo, &info);
2452 }
2453 break;
2454 case EXCP_DEBUG:
2455 {
2456 int sig;
2457
2458 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2459 if (sig)
2460 {
2461 info.si_signo = sig;
2462 info.si_errno = 0;
2463 info.si_code = TARGET_TRAP_BRKPT;
2464 queue_signal(env, info.si_signo, &info);
2465 }
2466 }
2467 break;
2468 default:
2469 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
2470 trapnr);
2471 cpu_dump_state(env, stderr, fprintf, 0);
2472 abort();
2473 }
2474 process_pending_signals(env);
2475 }
2476 }
2477 #endif /* TARGET_M68K */
2478
2479 #ifdef TARGET_ALPHA
2480 static void do_store_exclusive(CPUAlphaState *env, int reg, int quad)
2481 {
2482 target_ulong addr, val, tmp;
2483 target_siginfo_t info;
2484 int ret = 0;
2485
2486 addr = env->lock_addr;
2487 tmp = env->lock_st_addr;
2488 env->lock_addr = -1;
2489 env->lock_st_addr = 0;
2490
2491 start_exclusive();
2492 mmap_lock();
2493
2494 if (addr == tmp) {
2495 if (quad ? get_user_s64(val, addr) : get_user_s32(val, addr)) {
2496 goto do_sigsegv;
2497 }
2498
2499 if (val == env->lock_value) {
2500 tmp = env->ir[reg];
2501 if (quad ? put_user_u64(tmp, addr) : put_user_u32(tmp, addr)) {
2502 goto do_sigsegv;
2503 }
2504 ret = 1;
2505 }
2506 }
2507 env->ir[reg] = ret;
2508 env->pc += 4;
2509
2510 mmap_unlock();
2511 end_exclusive();
2512 return;
2513
2514 do_sigsegv:
2515 mmap_unlock();
2516 end_exclusive();
2517
2518 info.si_signo = TARGET_SIGSEGV;
2519 info.si_errno = 0;
2520 info.si_code = TARGET_SEGV_MAPERR;
2521 info._sifields._sigfault._addr = addr;
2522 queue_signal(env, TARGET_SIGSEGV, &info);
2523 }
2524
2525 void cpu_loop (CPUState *env)
2526 {
2527 int trapnr;
2528 target_siginfo_t info;
2529 abi_long sysret;
2530
2531 while (1) {
2532 trapnr = cpu_alpha_exec (env);
2533
2534 /* All of the traps imply a transition through PALcode, which
2535 implies an REI instruction has been executed. Which means
2536 that the intr_flag should be cleared. */
2537 env->intr_flag = 0;
2538
2539 switch (trapnr) {
2540 case EXCP_RESET:
2541 fprintf(stderr, "Reset requested. Exit\n");
2542 exit(1);
2543 break;
2544 case EXCP_MCHK:
2545 fprintf(stderr, "Machine check exception. Exit\n");
2546 exit(1);
2547 break;
2548 case EXCP_SMP_INTERRUPT:
2549 case EXCP_CLK_INTERRUPT:
2550 case EXCP_DEV_INTERRUPT:
2551 fprintf(stderr, "External interrupt. Exit\n");
2552 exit(1);
2553 break;
2554 case EXCP_MMFAULT:
2555 env->lock_addr = -1;
2556 info.si_signo = TARGET_SIGSEGV;
2557 info.si_errno = 0;
2558 info.si_code = (page_get_flags(env->trap_arg0) & PAGE_VALID
2559 ? TARGET_SEGV_ACCERR : TARGET_SEGV_MAPERR);
2560 info._sifields._sigfault._addr = env->trap_arg0;
2561 queue_signal(env, info.si_signo, &info);
2562 break;
2563 case EXCP_UNALIGN:
2564 env->lock_addr = -1;
2565 info.si_signo = TARGET_SIGBUS;
2566 info.si_errno = 0;
2567 info.si_code = TARGET_BUS_ADRALN;
2568 info._sifields._sigfault._addr = env->trap_arg0;
2569 queue_signal(env, info.si_signo, &info);
2570 break;
2571 case EXCP_OPCDEC:
2572 do_sigill:
2573 env->lock_addr = -1;
2574 info.si_signo = TARGET_SIGILL;
2575 info.si_errno = 0;
2576 info.si_code = TARGET_ILL_ILLOPC;
2577 info._sifields._sigfault._addr = env->pc;
2578 queue_signal(env, info.si_signo, &info);
2579 break;
2580 case EXCP_ARITH:
2581 env->lock_addr = -1;
2582 info.si_signo = TARGET_SIGFPE;
2583 info.si_errno = 0;
2584 info.si_code = TARGET_FPE_FLTINV;
2585 info._sifields._sigfault._addr = env->pc;
2586 queue_signal(env, info.si_signo, &info);
2587 break;
2588 case EXCP_FEN:
2589 /* No-op. Linux simply re-enables the FPU. */
2590 break;
2591 case EXCP_CALL_PAL:
2592 env->lock_addr = -1;
2593 switch (env->error_code) {
2594 case 0x80:
2595 /* BPT */
2596 info.si_signo = TARGET_SIGTRAP;
2597 info.si_errno = 0;
2598 info.si_code = TARGET_TRAP_BRKPT;
2599 info._sifields._sigfault._addr = env->pc;
2600 queue_signal(env, info.si_signo, &info);
2601 break;
2602 case 0x81:
2603 /* BUGCHK */
2604 info.si_signo = TARGET_SIGTRAP;
2605 info.si_errno = 0;
2606 info.si_code = 0;
2607 info._sifields._sigfault._addr = env->pc;
2608 queue_signal(env, info.si_signo, &info);
2609 break;
2610 case 0x83:
2611 /* CALLSYS */
2612 trapnr = env->ir[IR_V0];
2613 sysret = do_syscall(env, trapnr,
2614 env->ir[IR_A0], env->ir[IR_A1],
2615 env->ir[IR_A2], env->ir[IR_A3],
2616 env->ir[IR_A4], env->ir[IR_A5],
2617 0, 0);
2618 if (trapnr == TARGET_NR_sigreturn
2619 || trapnr == TARGET_NR_rt_sigreturn) {
2620 break;
2621 }
2622 /* Syscall writes 0 to V0 to bypass error check, similar
2623 to how this is handled internal to Linux kernel. */
2624 if (env->ir[IR_V0] == 0) {
2625 env->ir[IR_V0] = sysret;
2626 } else {
2627 env->ir[IR_V0] = (sysret < 0 ? -sysret : sysret);
2628 env->ir[IR_A3] = (sysret < 0);
2629 }
2630 break;
2631 case 0x86:
2632 /* IMB */
2633 /* ??? We can probably elide the code using page_unprotect
2634 that is checking for self-modifying code. Instead we
2635 could simply call tb_flush here. Until we work out the
2636 changes required to turn off the extra write protection,
2637 this can be a no-op. */
2638 break;
2639 case 0x9E:
2640 /* RDUNIQUE */
2641 /* Handled in the translator for usermode. */
2642 abort();
2643 case 0x9F:
2644 /* WRUNIQUE */
2645 /* Handled in the translator for usermode. */
2646 abort();
2647 case 0xAA:
2648 /* GENTRAP */
2649 info.si_signo = TARGET_SIGFPE;
2650 switch (env->ir[IR_A0]) {
2651 case TARGET_GEN_INTOVF:
2652 info.si_code = TARGET_FPE_INTOVF;
2653 break;
2654 case TARGET_GEN_INTDIV:
2655 info.si_code = TARGET_FPE_INTDIV;
2656 break;
2657 case TARGET_GEN_FLTOVF:
2658 info.si_code = TARGET_FPE_FLTOVF;
2659 break;
2660 case TARGET_GEN_FLTUND:
2661 info.si_code = TARGET_FPE_FLTUND;
2662 break;
2663 case TARGET_GEN_FLTINV:
2664 info.si_code = TARGET_FPE_FLTINV;
2665 break;
2666 case TARGET_GEN_FLTINE:
2667 info.si_code = TARGET_FPE_FLTRES;
2668 break;
2669 case TARGET_GEN_ROPRAND:
2670 info.si_code = 0;
2671 break;
2672 default:
2673 info.si_signo = TARGET_SIGTRAP;
2674 info.si_code = 0;
2675 break;
2676 }
2677 info.si_errno = 0;
2678 info._sifields._sigfault._addr = env->pc;
2679 queue_signal(env, info.si_signo, &info);
2680 break;
2681 default:
2682 goto do_sigill;
2683 }
2684 break;
2685 case EXCP_DEBUG:
2686 info.si_signo = gdb_handlesig (env, TARGET_SIGTRAP);
2687 if (info.si_signo) {
2688 env->lock_addr = -1;
2689 info.si_errno = 0;
2690 info.si_code = TARGET_TRAP_BRKPT;
2691 queue_signal(env, info.si_signo, &info);
2692 }
2693 break;
2694 case EXCP_STL_C:
2695 case EXCP_STQ_C:
2696 do_store_exclusive(env, env->error_code, trapnr - EXCP_STL_C);
2697 break;
2698 default:
2699 printf ("Unhandled trap: 0x%x\n", trapnr);
2700 cpu_dump_state(env, stderr, fprintf, 0);
2701 exit (1);
2702 }
2703 process_pending_signals (env);
2704 }
2705 }
2706 #endif /* TARGET_ALPHA */
2707
2708 #ifdef TARGET_S390X
2709 void cpu_loop(CPUS390XState *env)
2710 {
2711 int trapnr;
2712 target_siginfo_t info;
2713
2714 while (1) {
2715 trapnr = cpu_s390x_exec (env);
2716
2717 switch (trapnr) {
2718 case EXCP_INTERRUPT:
2719 /* just indicate that signals should be handled asap */
2720 break;
2721 case EXCP_DEBUG:
2722 {
2723 int sig;
2724
2725 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2726 if (sig) {
2727 info.si_signo = sig;
2728 info.si_errno = 0;
2729 info.si_code = TARGET_TRAP_BRKPT;
2730 queue_signal(env, info.si_signo, &info);
2731 }
2732 }
2733 break;
2734 case EXCP_SVC:
2735 {
2736 int n = env->int_svc_code;
2737 if (!n) {
2738 /* syscalls > 255 */
2739 n = env->regs[1];
2740 }
2741 env->psw.addr += env->int_svc_ilc;
2742 env->regs[2] = do_syscall(env, n,
2743 env->regs[2],
2744 env->regs[3],
2745 env->regs[4],
2746 env->regs[5],
2747 env->regs[6],
2748 env->regs[7],
2749 0, 0);
2750 }
2751 break;
2752 case EXCP_ADDR:
2753 {
2754 info.si_signo = SIGSEGV;
2755 info.si_errno = 0;
2756 /* XXX: check env->error_code */
2757 info.si_code = TARGET_SEGV_MAPERR;
2758 info._sifields._sigfault._addr = env->__excp_addr;
2759 queue_signal(env, info.si_signo, &info);
2760 }
2761 break;
2762 case EXCP_SPEC:
2763 {
2764 fprintf(stderr,"specification exception insn 0x%08x%04x\n", ldl(env->psw.addr), lduw(env->psw.addr + 4));
2765 info.si_signo = SIGILL;
2766 info.si_errno = 0;
2767 info.si_code = TARGET_ILL_ILLOPC;
2768 info._sifields._sigfault._addr = env->__excp_addr;
2769 queue_signal(env, info.si_signo, &info);
2770 }
2771 break;
2772 default:
2773 printf ("Unhandled trap: 0x%x\n", trapnr);
2774 cpu_dump_state(env, stderr, fprintf, 0);
2775 exit (1);
2776 }
2777 process_pending_signals (env);
2778 }
2779 }
2780
2781 #endif /* TARGET_S390X */
2782
2783 static void version(void)
2784 {
2785 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION QEMU_PKGVERSION
2786 ", Copyright (c) 2003-2008 Fabrice Bellard\n");
2787 }
2788
2789 static void usage(void)
2790 {
2791 version();
2792 printf("usage: qemu-" TARGET_ARCH " [options] program [arguments...]\n"
2793 "Linux CPU emulator (compiled for %s emulation)\n"
2794 "\n"
2795 "Standard options:\n"
2796 "-h print this help\n"
2797 "-version display version information and exit\n"
2798 "-g port wait gdb connection to port\n"
2799 "-L path set the elf interpreter prefix (default=%s)\n"
2800 "-s size set the stack size in bytes (default=%ld)\n"
2801 "-cpu model select CPU (-cpu ? for list)\n"
2802 "-drop-ld-preload drop LD_PRELOAD for target process\n"
2803 "-E var=value sets/modifies targets environment variable(s)\n"
2804 "-U var unsets targets environment variable(s)\n"
2805 "-0 argv0 forces target process argv[0] to be argv0\n"
2806 #if defined(CONFIG_USE_GUEST_BASE)
2807 "-B address set guest_base address to address\n"
2808 "-R size reserve size bytes for guest virtual address space\n"
2809 #endif
2810 "\n"
2811 "Debug options:\n"
2812 "-d options activate log (logfile=%s)\n"
2813 "-p pagesize set the host page size to 'pagesize'\n"
2814 "-singlestep always run in singlestep mode\n"
2815 "-strace log system calls\n"
2816 "\n"
2817 "Environment variables:\n"
2818 "QEMU_STRACE Print system calls and arguments similar to the\n"
2819 " 'strace' program. Enable by setting to any value.\n"
2820 "You can use -E and -U options to set/unset environment variables\n"
2821 "for target process. It is possible to provide several variables\n"
2822 "by repeating the option. For example:\n"
2823 " -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n"
2824 "Note that if you provide several changes to single variable\n"
2825 "last change will stay in effect.\n"
2826 ,
2827 TARGET_ARCH,
2828 interp_prefix,
2829 guest_stack_size,
2830 DEBUG_LOGFILE);
2831 exit(1);
2832 }
2833
2834 THREAD CPUState *thread_env;
2835
2836 void task_settid(TaskState *ts)
2837 {
2838 if (ts->ts_tid == 0) {
2839 #ifdef CONFIG_USE_NPTL
2840 ts->ts_tid = (pid_t)syscall(SYS_gettid);
2841 #else
2842 /* when no threads are used, tid becomes pid */
2843 ts->ts_tid = getpid();
2844 #endif
2845 }
2846 }
2847
2848 void stop_all_tasks(void)
2849 {
2850 /*
2851 * We trust that when using NPTL, start_exclusive()
2852 * handles thread stopping correctly.
2853 */
2854 start_exclusive();
2855 }
2856
2857 /* Assumes contents are already zeroed. */
2858 void init_task_state(TaskState *ts)
2859 {
2860 int i;
2861
2862 ts->used = 1;
2863 ts->first_free = ts->sigqueue_table;
2864 for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) {
2865 ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1];
2866 }
2867 ts->sigqueue_table[i].next = NULL;
2868 }
2869
2870 int main(int argc, char **argv, char **envp)
2871 {
2872 const char *filename;
2873 const char *cpu_model;
2874 const char *log_file = DEBUG_LOGFILE;
2875 const char *log_mask = NULL;
2876 struct target_pt_regs regs1, *regs = &regs1;
2877 struct image_info info1, *info = &info1;
2878 struct linux_binprm bprm;
2879 TaskState *ts;
2880 CPUState *env;
2881 int optind;
2882 const char *r;
2883 int gdbstub_port = 0;
2884 char **target_environ, **wrk;
2885 char **target_argv;
2886 int target_argc;
2887 envlist_t *envlist = NULL;
2888 const char *argv0 = NULL;
2889 int i;
2890 int ret;
2891
2892 if (argc <= 1)
2893 usage();
2894
2895 qemu_cache_utils_init(envp);
2896
2897 if ((envlist = envlist_create()) == NULL) {
2898 (void) fprintf(stderr, "Unable to allocate envlist\n");
2899 exit(1);
2900 }
2901
2902 /* add current environment into the list */
2903 for (wrk = environ; *wrk != NULL; wrk++) {
2904 (void) envlist_setenv(envlist, *wrk);
2905 }
2906
2907 /* Read the stack limit from the kernel. If it's "unlimited",
2908 then we can do little else besides use the default. */
2909 {
2910 struct rlimit lim;
2911 if (getrlimit(RLIMIT_STACK, &lim) == 0
2912 && lim.rlim_cur != RLIM_INFINITY
2913 && lim.rlim_cur == (target_long)lim.rlim_cur) {
2914 guest_stack_size = lim.rlim_cur;
2915 }
2916 }
2917
2918 cpu_model = NULL;
2919 #if defined(cpudef_setup)
2920 cpudef_setup(); /* parse cpu definitions in target config file (TBD) */
2921 #endif
2922
2923 optind = 1;
2924 for(;;) {
2925 if (optind >= argc)
2926 break;
2927 r = argv[optind];
2928 if (r[0] != '-')
2929 break;
2930 optind++;
2931 r++;
2932 if (!strcmp(r, "-")) {
2933 break;
2934 } else if (!strcmp(r, "d")) {
2935 if (optind >= argc) {
2936 break;
2937 }
2938 log_mask = argv[optind++];
2939 } else if (!strcmp(r, "D")) {
2940 if (optind >= argc) {
2941 break;
2942 }
2943 log_file = argv[optind++];
2944 } else if (!strcmp(r, "E")) {
2945 r = argv[optind++];
2946 if (envlist_setenv(envlist, r) != 0)
2947 usage();
2948 } else if (!strcmp(r, "ignore-environment")) {
2949 envlist_free(envlist);
2950 if ((envlist = envlist_create()) == NULL) {
2951 (void) fprintf(stderr, "Unable to allocate envlist\n");
2952 exit(1);
2953 }
2954 } else if (!strcmp(r, "U")) {
2955 r = argv[optind++];
2956 if (envlist_unsetenv(envlist, r) != 0)
2957 usage();
2958 } else if (!strcmp(r, "0")) {
2959 r = argv[optind++];
2960 argv0 = r;
2961 } else if (!strcmp(r, "s")) {
2962 if (optind >= argc)
2963 break;
2964 r = argv[optind++];
2965 guest_stack_size = strtoul(r, (char **)&r, 0);
2966 if (guest_stack_size == 0)
2967 usage();
2968 if (*r == 'M')
2969 guest_stack_size *= 1024 * 1024;
2970 else if (*r == 'k' || *r == 'K')
2971 guest_stack_size *= 1024;
2972 } else if (!strcmp(r, "L")) {
2973 interp_prefix = argv[optind++];
2974 } else if (!strcmp(r, "p")) {
2975 if (optind >= argc)
2976 break;
2977 qemu_host_page_size = atoi(argv[optind++]);
2978 if (qemu_host_page_size == 0 ||
2979 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
2980 fprintf(stderr, "page size must be a power of two\n");
2981 exit(1);
2982 }
2983 } else if (!strcmp(r, "g")) {
2984 if (optind >= argc)
2985 break;
2986 gdbstub_port = atoi(argv[optind++]);
2987 } else if (!strcmp(r, "r")) {
2988 qemu_uname_release = argv[optind++];
2989 } else if (!strcmp(r, "cpu")) {
2990 cpu_model = argv[optind++];
2991 if (cpu_model == NULL || strcmp(cpu_model, "?") == 0) {
2992 /* XXX: implement xxx_cpu_list for targets that still miss it */
2993 #if defined(cpu_list_id)
2994 cpu_list_id(stdout, &fprintf, "");
2995 #elif defined(cpu_list)
2996 cpu_list(stdout, &fprintf); /* deprecated */
2997 #endif
2998 exit(1);
2999 }
3000 #if defined(CONFIG_USE_GUEST_BASE)
3001 } else if (!strcmp(r, "B")) {
3002 guest_base = strtol(argv[optind++], NULL, 0);
3003 have_guest_base = 1;
3004 } else if (!strcmp(r, "R")) {
3005 char *p;
3006 int shift = 0;
3007 reserved_va = strtoul(argv[optind++], &p, 0);
3008 switch (*p) {
3009 case 'k':
3010 case 'K':
3011 shift = 10;
3012 break;
3013 case 'M':
3014 shift = 20;
3015 break;
3016 case 'G':
3017 shift = 30;
3018 break;
3019 }
3020 if (shift) {
3021 unsigned long unshifted = reserved_va;
3022 p++;
3023 reserved_va <<= shift;
3024 if (((reserved_va >> shift) != unshifted)
3025 #if HOST_LONG_BITS > TARGET_VIRT_ADDR_SPACE_BITS
3026 || (reserved_va > (1ul << TARGET_VIRT_ADDR_SPACE_BITS))
3027 #endif
3028 ) {
3029 fprintf(stderr, "Reserved virtual address too big\n");
3030 exit(1);
3031 }
3032 }
3033 if (*p) {
3034 fprintf(stderr, "Unrecognised -R size suffix '%s'\n", p);
3035 exit(1);
3036 }
3037 #endif
3038 } else if (!strcmp(r, "drop-ld-preload")) {
3039 (void) envlist_unsetenv(envlist, "LD_PRELOAD");
3040 } else if (!strcmp(r, "singlestep")) {
3041 singlestep = 1;
3042 } else if (!strcmp(r, "strace")) {
3043 do_strace = 1;
3044 } else if (!strcmp(r, "version")) {
3045 version();
3046 exit(0);
3047 } else {
3048 usage();
3049 }
3050 }
3051 /* init debug */
3052 cpu_set_log_filename(log_file);
3053 if (log_mask) {
3054 int mask;
3055 const CPULogItem *item;
3056
3057 mask = cpu_str_to_log_mask(log_mask);
3058 if (!mask) {
3059 printf("Log items (comma separated):\n");
3060 for (item = cpu_log_items; item->mask != 0; item++) {
3061 printf("%-10s %s\n", item->name, item->help);
3062 }
3063 exit(1);
3064 }
3065 cpu_set_log(mask);
3066 }
3067
3068 if (optind >= argc) {
3069 usage();
3070 }
3071 filename = argv[optind];
3072 exec_path = argv[optind];
3073
3074 /* Zero out regs */
3075 memset(regs, 0, sizeof(struct target_pt_regs));
3076
3077 /* Zero out image_info */
3078 memset(info, 0, sizeof(struct image_info));
3079
3080 memset(&bprm, 0, sizeof (bprm));
3081
3082 /* Scan interp_prefix dir for replacement files. */
3083 init_paths(interp_prefix);
3084
3085 if (cpu_model == NULL) {
3086 #if defined(TARGET_I386)
3087 #ifdef TARGET_X86_64
3088 cpu_model = "qemu64";
3089 #else
3090 cpu_model = "qemu32";
3091 #endif
3092 #elif defined(TARGET_ARM)
3093 cpu_model = "any";
3094 #elif defined(TARGET_UNICORE32)
3095 cpu_model = "any";
3096 #elif defined(TARGET_M68K)
3097 cpu_model = "any";
3098 #elif defined(TARGET_SPARC)
3099 #ifdef TARGET_SPARC64
3100 cpu_model = "TI UltraSparc II";
3101 #else
3102 cpu_model = "Fujitsu MB86904";
3103 #endif
3104 #elif defined(TARGET_MIPS)
3105 #if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64)
3106 cpu_model = "20Kc";
3107 #else
3108 cpu_model = "24Kf";
3109 #endif
3110 #elif defined(TARGET_PPC)
3111 #ifdef TARGET_PPC64
3112 cpu_model = "970fx";
3113 #else
3114 cpu_model = "750";
3115 #endif
3116 #else
3117 cpu_model = "any";
3118 #endif
3119 }
3120 cpu_exec_init_all(0);
3121 /* NOTE: we need to init the CPU at this stage to get
3122 qemu_host_page_size */
3123 env = cpu_init(cpu_model);
3124 if (!env) {
3125 fprintf(stderr, "Unable to find CPU definition\n");
3126 exit(1);
3127 }
3128 #if defined(TARGET_I386) || defined(TARGET_SPARC) || defined(TARGET_PPC)
3129 cpu_reset(env);
3130 #endif
3131
3132 thread_env = env;
3133
3134 if (getenv("QEMU_STRACE")) {
3135 do_strace = 1;
3136 }
3137
3138 target_environ = envlist_to_environ(envlist, NULL);
3139 envlist_free(envlist);
3140
3141 #if defined(CONFIG_USE_GUEST_BASE)
3142 /*
3143 * Now that page sizes are configured in cpu_init() we can do
3144 * proper page alignment for guest_base.
3145 */
3146 guest_base = HOST_PAGE_ALIGN(guest_base);
3147
3148 if (reserved_va) {
3149 void *p;
3150 int flags;
3151
3152 flags = MAP_ANONYMOUS | MAP_PRIVATE | MAP_NORESERVE;
3153 if (have_guest_base) {
3154 flags |= MAP_FIXED;
3155 }
3156 p = mmap((void *)guest_base, reserved_va, PROT_NONE, flags, -1, 0);
3157 if (p == MAP_FAILED) {
3158 fprintf(stderr, "Unable to reserve guest address space\n");
3159 exit(1);
3160 }
3161 guest_base = (unsigned long)p;
3162 /* Make sure the address is properly aligned. */
3163 if (guest_base & ~qemu_host_page_mask) {
3164 munmap(p, reserved_va);
3165 p = mmap((void *)guest_base, reserved_va + qemu_host_page_size,
3166 PROT_NONE, flags, -1, 0);
3167 if (p == MAP_FAILED) {
3168 fprintf(stderr, "Unable to reserve guest address space\n");
3169 exit(1);
3170 }
3171 guest_base = HOST_PAGE_ALIGN((unsigned long)p);
3172 }
3173 qemu_log("Reserved 0x%lx bytes of guest address space\n", reserved_va);
3174 }
3175 #endif /* CONFIG_USE_GUEST_BASE */
3176
3177 /*
3178 * Read in mmap_min_addr kernel parameter. This value is used
3179 * When loading the ELF image to determine whether guest_base
3180 * is needed. It is also used in mmap_find_vma.
3181 */
3182 {
3183 FILE *fp;
3184
3185 if ((fp = fopen("/proc/sys/vm/mmap_min_addr", "r")) != NULL) {
3186 unsigned long tmp;
3187 if (fscanf(fp, "%lu", &tmp) == 1) {
3188 mmap_min_addr = tmp;
3189 qemu_log("host mmap_min_addr=0x%lx\n", mmap_min_addr);
3190 }
3191 fclose(fp);
3192 }
3193 }
3194
3195 /*
3196 * Prepare copy of argv vector for target.
3197 */
3198 target_argc = argc - optind;
3199 target_argv = calloc(target_argc + 1, sizeof (char *));
3200 if (target_argv == NULL) {
3201 (void) fprintf(stderr, "Unable to allocate memory for target_argv\n");
3202 exit(1);
3203 }
3204
3205 /*
3206 * If argv0 is specified (using '-0' switch) we replace
3207 * argv[0] pointer with the given one.
3208 */
3209 i = 0;
3210 if (argv0 != NULL) {
3211 target_argv[i++] = strdup(argv0);
3212 }
3213 for (; i < target_argc; i++) {
3214 target_argv[i] = strdup(argv[optind + i]);
3215 }
3216 target_argv[target_argc] = NULL;
3217
3218 ts = qemu_mallocz (sizeof(TaskState));
3219 init_task_state(ts);
3220 /* build Task State */
3221 ts->info = info;
3222 ts->bprm = &bprm;
3223 env->opaque = ts;
3224 task_settid(ts);
3225
3226 ret = loader_exec(filename, target_argv, target_environ, regs,
3227 info, &bprm);
3228 if (ret != 0) {
3229 printf("Error %d while loading %s\n", ret, filename);
3230 _exit(1);
3231 }
3232
3233 for (i = 0; i < target_argc; i++) {
3234 free(target_argv[i]);
3235 }
3236 free(target_argv);
3237
3238 for (wrk = target_environ; *wrk; wrk++) {
3239 free(*wrk);
3240 }
3241
3242 free(target_environ);
3243
3244 if (qemu_log_enabled()) {
3245 #if defined(CONFIG_USE_GUEST_BASE)
3246 qemu_log("guest_base 0x%lx\n", guest_base);
3247 #endif
3248 log_page_dump();
3249
3250 qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk);
3251 qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code);
3252 qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n",
3253 info->start_code);
3254 qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n",
3255 info->start_data);
3256 qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data);
3257 qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n",
3258 info->start_stack);
3259 qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk);
3260 qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry);
3261 }
3262
3263 target_set_brk(info->brk);
3264 syscall_init();
3265 signal_init();
3266
3267 #if defined(CONFIG_USE_GUEST_BASE)
3268 /* Now that we've loaded the binary, GUEST_BASE is fixed. Delay
3269 generating the prologue until now so that the prologue can take
3270 the real value of GUEST_BASE into account. */
3271 tcg_prologue_init(&tcg_ctx);
3272 #endif
3273
3274 #if defined(TARGET_I386)
3275 cpu_x86_set_cpl(env, 3);
3276
3277 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
3278 env->hflags |= HF_PE_MASK;
3279 if (env->cpuid_features & CPUID_SSE) {
3280 env->cr[4] |= CR4_OSFXSR_MASK;
3281 env->hflags |= HF_OSFXSR_MASK;
3282 }
3283 #ifndef TARGET_ABI32
3284 /* enable 64 bit mode if possible */
3285 if (!(env->cpuid_ext2_features & CPUID_EXT2_LM)) {
3286 fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n");
3287 exit(1);
3288 }
3289 env->cr[4] |= CR4_PAE_MASK;
3290 env->efer |= MSR_EFER_LMA | MSR_EFER_LME;
3291 env->hflags |= HF_LMA_MASK;
3292 #endif
3293
3294 /* flags setup : we activate the IRQs by default as in user mode */
3295 env->eflags |= IF_MASK;
3296
3297 /* linux register setup */
3298 #ifndef TARGET_ABI32
3299 env->regs[R_EAX] = regs->rax;
3300 env->regs[R_EBX] = regs->rbx;
3301 env->regs[R_ECX] = regs->rcx;
3302 env->regs[R_EDX] = regs->rdx;
3303 env->regs[R_ESI] = regs->rsi;
3304 env->regs[R_EDI] = regs->rdi;
3305 env->regs[R_EBP] = regs->rbp;
3306 env->regs[R_ESP] = regs->rsp;
3307 env->eip = regs->rip;
3308 #else
3309 env->regs[R_EAX] = regs->eax;
3310 env->regs[R_EBX] = regs->ebx;
3311 env->regs[R_ECX] = regs->ecx;
3312 env->regs[R_EDX] = regs->edx;
3313 env->regs[R_ESI] = regs->esi;
3314 env->regs[R_EDI] = regs->edi;
3315 env->regs[R_EBP] = regs->ebp;
3316 env->regs[R_ESP] = regs->esp;
3317 env->eip = regs->eip;
3318 #endif
3319
3320 /* linux interrupt setup */
3321 #ifndef TARGET_ABI32
3322 env->idt.limit = 511;
3323 #else
3324 env->idt.limit = 255;
3325 #endif
3326 env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1),
3327 PROT_READ|PROT_WRITE,
3328 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3329 idt_table = g2h(env->idt.base);
3330 set_idt(0, 0);
3331 set_idt(1, 0);
3332 set_idt(2, 0);
3333 set_idt(3, 3);
3334 set_idt(4, 3);
3335 set_idt(5, 0);
3336 set_idt(6, 0);
3337 set_idt(7, 0);
3338 set_idt(8, 0);
3339 set_idt(9, 0);
3340 set_idt(10, 0);
3341 set_idt(11, 0);
3342 set_idt(12, 0);
3343 set_idt(13, 0);
3344 set_idt(14, 0);
3345 set_idt(15, 0);
3346 set_idt(16, 0);
3347 set_idt(17, 0);
3348 set_idt(18, 0);
3349 set_idt(19, 0);
3350 set_idt(0x80, 3);
3351
3352 /* linux segment setup */
3353 {
3354 uint64_t *gdt_table;
3355 env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES,
3356 PROT_READ|PROT_WRITE,
3357 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3358 env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1;
3359 gdt_table = g2h(env->gdt.base);
3360 #ifdef TARGET_ABI32
3361 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
3362 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3363 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
3364 #else
3365 /* 64 bit code segment */
3366 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
3367 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3368 DESC_L_MASK |
3369 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
3370 #endif
3371 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
3372 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3373 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
3374 }
3375 cpu_x86_load_seg(env, R_CS, __USER_CS);
3376 cpu_x86_load_seg(env, R_SS, __USER_DS);
3377 #ifdef TARGET_ABI32
3378 cpu_x86_load_seg(env, R_DS, __USER_DS);
3379 cpu_x86_load_seg(env, R_ES, __USER_DS);
3380 cpu_x86_load_seg(env, R_FS, __USER_DS);
3381 cpu_x86_load_seg(env, R_GS, __USER_DS);
3382 /* This hack makes Wine work... */
3383 env->segs[R_FS].selector = 0;
3384 #else
3385 cpu_x86_load_seg(env, R_DS, 0);
3386 cpu_x86_load_seg(env, R_ES, 0);
3387 cpu_x86_load_seg(env, R_FS, 0);
3388 cpu_x86_load_seg(env, R_GS, 0);
3389 #endif
3390 #elif defined(TARGET_ARM)
3391 {
3392 int i;
3393 cpsr_write(env, regs->uregs[16], 0xffffffff);
3394 for(i = 0; i < 16; i++) {
3395 env->regs[i] = regs->uregs[i];
3396 }
3397 }
3398 #elif defined(TARGET_UNICORE32)
3399 {
3400 int i;
3401 cpu_asr_write(env, regs->uregs[32], 0xffffffff);
3402 for (i = 0; i < 32; i++) {
3403 env->regs[i] = regs->uregs[i];
3404 }
3405 }
3406 #elif defined(TARGET_SPARC)
3407 {
3408 int i;
3409 env->pc = regs->pc;
3410 env->npc = regs->npc;
3411 env->y = regs->y;
3412 for(i = 0; i < 8; i++)
3413 env->gregs[i] = regs->u_regs[i];
3414 for(i = 0; i < 8; i++)
3415 env->regwptr[i] = regs->u_regs[i + 8];
3416 }
3417 #elif defined(TARGET_PPC)
3418 {
3419 int i;
3420
3421 #if defined(TARGET_PPC64)
3422 #if defined(TARGET_ABI32)
3423 env->msr &= ~((target_ulong)1 << MSR_SF);
3424 #else
3425 env->msr |= (target_ulong)1 << MSR_SF;
3426 #endif
3427 #endif
3428 env->nip = regs->nip;
3429 for(i = 0; i < 32; i++) {
3430 env->gpr[i] = regs->gpr[i];
3431 }
3432 }
3433 #elif defined(TARGET_M68K)
3434 {
3435 env->pc = regs->pc;
3436 env->dregs[0] = regs->d0;
3437 env->dregs[1] = regs->d1;
3438 env->dregs[2] = regs->d2;
3439 env->dregs[3] = regs->d3;
3440 env->dregs[4] = regs->d4;
3441 env->dregs[5] = regs->d5;
3442 env->dregs[6] = regs->d6;
3443 env->dregs[7] = regs->d7;
3444 env->aregs[0] = regs->a0;
3445 env->aregs[1] = regs->a1;
3446 env->aregs[2] = regs->a2;
3447 env->aregs[3] = regs->a3;
3448 env->aregs[4] = regs->a4;
3449 env->aregs[5] = regs->a5;
3450 env->aregs[6] = regs->a6;
3451 env->aregs[7] = regs->usp;
3452 env->sr = regs->sr;
3453 ts->sim_syscalls = 1;
3454 }
3455 #elif defined(TARGET_MICROBLAZE)
3456 {
3457 env->regs[0] = regs->r0;
3458 env->regs[1] = regs->r1;
3459 env->regs[2] = regs->r2;
3460 env->regs[3] = regs->r3;
3461 env->regs[4] = regs->r4;
3462 env->regs[5] = regs->r5;
3463 env->regs[6] = regs->r6;
3464 env->regs[7] = regs->r7;
3465 env->regs[8] = regs->r8;
3466 env->regs[9] = regs->r9;
3467 env->regs[10] = regs->r10;
3468 env->regs[11] = regs->r11;
3469 env->regs[12] = regs->r12;
3470 env->regs[13] = regs->r13;
3471 env->regs[14] = regs->r14;
3472 env->regs[15] = regs->r15;
3473 env->regs[16] = regs->r16;
3474 env->regs[17] = regs->r17;
3475 env->regs[18] = regs->r18;
3476 env->regs[19] = regs->r19;
3477 env->regs[20] = regs->r20;
3478 env->regs[21] = regs->r21;
3479 env->regs[22] = regs->r22;
3480 env->regs[23] = regs->r23;
3481 env->regs[24] = regs->r24;
3482 env->regs[25] = regs->r25;
3483 env->regs[26] = regs->r26;
3484 env->regs[27] = regs->r27;
3485 env->regs[28] = regs->r28;
3486 env->regs[29] = regs->r29;
3487 env->regs[30] = regs->r30;
3488 env->regs[31] = regs->r31;
3489 env->sregs[SR_PC] = regs->pc;
3490 }
3491 #elif defined(TARGET_MIPS)
3492 {
3493 int i;
3494
3495 for(i = 0; i < 32; i++) {
3496 env->active_tc.gpr[i] = regs->regs[i];
3497 }
3498 env->active_tc.PC = regs->cp0_epc & ~(target_ulong)1;
3499 if (regs->cp0_epc & 1) {
3500 env->hflags |= MIPS_HFLAG_M16;
3501 }
3502 }
3503 #elif defined(TARGET_SH4)
3504 {
3505 int i;
3506
3507 for(i = 0; i < 16; i++) {
3508 env->gregs[i] = regs->regs[i];
3509 }
3510 env->pc = regs->pc;
3511 }
3512 #elif defined(TARGET_ALPHA)
3513 {
3514 int i;
3515
3516 for(i = 0; i < 28; i++) {
3517 env->ir[i] = ((abi_ulong *)regs)[i];
3518 }
3519 env->ir[IR_SP] = regs->usp;
3520 env->pc = regs->pc;
3521 }
3522 #elif defined(TARGET_CRIS)
3523 {
3524 env->regs[0] = regs->r0;
3525 env->regs[1] = regs->r1;
3526 env->regs[2] = regs->r2;
3527 env->regs[3] = regs->r3;
3528 env->regs[4] = regs->r4;
3529 env->regs[5] = regs->r5;
3530 env->regs[6] = regs->r6;
3531 env->regs[7] = regs->r7;
3532 env->regs[8] = regs->r8;
3533 env->regs[9] = regs->r9;
3534 env->regs[10] = regs->r10;
3535 env->regs[11] = regs->r11;
3536 env->regs[12] = regs->r12;
3537 env->regs[13] = regs->r13;
3538 env->regs[14] = info->start_stack;
3539 env->regs[15] = regs->acr;
3540 env->pc = regs->erp;
3541 }
3542 #elif defined(TARGET_S390X)
3543 {
3544 int i;
3545 for (i = 0; i < 16; i++) {
3546 env->regs[i] = regs->gprs[i];
3547 }
3548 env->psw.mask = regs->psw.mask;
3549 env->psw.addr = regs->psw.addr;
3550 }
3551 #else
3552 #error unsupported target CPU
3553 #endif
3554
3555 #if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
3556 ts->stack_base = info->start_stack;
3557 ts->heap_base = info->brk;
3558 /* This will be filled in on the first SYS_HEAPINFO call. */
3559 ts->heap_limit = 0;
3560 #endif
3561
3562 if (gdbstub_port) {
3563 gdbserver_start (gdbstub_port);
3564 gdb_handlesig(env, 0);
3565 }
3566 cpu_loop(env);
3567 /* never exits */
3568 return 0;
3569 }
various patches