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linux-user: identify running binary in /proc/self/exe
[qemu/mini2440.git] / linux-user / main.c
blob95efe398c743b0450dda7ef6d385ce37c415af43
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, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 * MA 02110-1301, USA.
20 */
21 #include <stdlib.h>
22 #include <stdio.h>
23 #include <stdarg.h>
24 #include <string.h>
25 #include <errno.h>
26 #include <unistd.h>
27 #include <sys/mman.h>
28
29 #include "qemu.h"
30 #include "qemu-common.h"
31 #include "cache-utils.h"
32 /* For tb_lock */
33 #include "exec-all.h"
34
35
36 #include "envlist.h"
37
38 #define DEBUG_LOGFILE "/tmp/qemu.log"
39
40 char *exec_path;
41
42 static const char *interp_prefix = CONFIG_QEMU_PREFIX;
43 const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
44
45 #if defined(__i386__) && !defined(CONFIG_STATIC)
46 /* Force usage of an ELF interpreter even if it is an ELF shared
47 object ! */
48 const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2";
49 #endif
50
51 /* for recent libc, we add these dummy symbols which are not declared
52 when generating a linked object (bug in ld ?) */
53 #if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined(CONFIG_STATIC)
54 asm(".globl __preinit_array_start\n"
55 ".globl __preinit_array_end\n"
56 ".globl __init_array_start\n"
57 ".globl __init_array_end\n"
58 ".globl __fini_array_start\n"
59 ".globl __fini_array_end\n"
60 ".section \".rodata\"\n"
61 "__preinit_array_start:\n"
62 "__preinit_array_end:\n"
63 "__init_array_start:\n"
64 "__init_array_end:\n"
65 "__fini_array_start:\n"
66 "__fini_array_end:\n"
67 ".long 0\n"
68 ".previous\n");
69 #endif
70
71 /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
72 we allocate a bigger stack. Need a better solution, for example
73 by remapping the process stack directly at the right place */
74 unsigned long x86_stack_size = 512 * 1024;
75
76 void gemu_log(const char *fmt, ...)
77 {
78 va_list ap;
79
80 va_start(ap, fmt);
81 vfprintf(stderr, fmt, ap);
82 va_end(ap);
83 }
84
85 void cpu_outb(CPUState *env, int addr, int val)
86 {
87 fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val);
88 }
89
90 void cpu_outw(CPUState *env, int addr, int val)
91 {
92 fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val);
93 }
94
95 void cpu_outl(CPUState *env, int addr, int val)
96 {
97 fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val);
98 }
99
100 int cpu_inb(CPUState *env, int addr)
101 {
102 fprintf(stderr, "inb: port=0x%04x\n", addr);
103 return 0;
104 }
105
106 int cpu_inw(CPUState *env, int addr)
107 {
108 fprintf(stderr, "inw: port=0x%04x\n", addr);
109 return 0;
110 }
111
112 int cpu_inl(CPUState *env, int addr)
113 {
114 fprintf(stderr, "inl: port=0x%04x\n", addr);
115 return 0;
116 }
117
118 #if defined(TARGET_I386)
119 int cpu_get_pic_interrupt(CPUState *env)
120 {
121 return -1;
122 }
123 #endif
124
125 /* timers for rdtsc */
126
127 #if 0
128
129 static uint64_t emu_time;
130
131 int64_t cpu_get_real_ticks(void)
132 {
133 return emu_time++;
134 }
135
136 #endif
137
138 #if defined(USE_NPTL)
139 /***********************************************************/
140 /* Helper routines for implementing atomic operations. */
141
142 /* To implement exclusive operations we force all cpus to syncronise.
143 We don't require a full sync, only that no cpus are executing guest code.
144 The alternative is to map target atomic ops onto host equivalents,
145 which requires quite a lot of per host/target work. */
146 static pthread_mutex_t exclusive_lock = PTHREAD_MUTEX_INITIALIZER;
147 static pthread_cond_t exclusive_cond = PTHREAD_COND_INITIALIZER;
148 static pthread_cond_t exclusive_resume = PTHREAD_COND_INITIALIZER;
149 static int pending_cpus;
150
151 /* Make sure everything is in a consistent state for calling fork(). */
152 void fork_start(void)
153 {
154 mmap_fork_start();
155 pthread_mutex_lock(&tb_lock);
156 pthread_mutex_lock(&exclusive_lock);
157 }
158
159 void fork_end(int child)
160 {
161 if (child) {
162 /* Child processes created by fork() only have a single thread.
163 Discard information about the parent threads. */
164 first_cpu = thread_env;
165 thread_env->next_cpu = NULL;
166 pending_cpus = 0;
167 pthread_mutex_init(&exclusive_lock, NULL);
168 pthread_cond_init(&exclusive_cond, NULL);
169 pthread_cond_init(&exclusive_resume, NULL);
170 pthread_mutex_init(&tb_lock, NULL);
171 gdbserver_fork(thread_env);
172 } else {
173 pthread_mutex_unlock(&exclusive_lock);
174 pthread_mutex_unlock(&tb_lock);
175 }
176 mmap_fork_end(child);
177 }
178
179 /* Wait for pending exclusive operations to complete. The exclusive lock
180 must be held. */
181 static inline void exclusive_idle(void)
182 {
183 while (pending_cpus) {
184 pthread_cond_wait(&exclusive_resume, &exclusive_lock);
185 }
186 }
187
188 /* Start an exclusive operation.
189 Must only be called from outside cpu_arm_exec. */
190 static inline void start_exclusive(void)
191 {
192 CPUState *other;
193 pthread_mutex_lock(&exclusive_lock);
194 exclusive_idle();
195
196 pending_cpus = 1;
197 /* Make all other cpus stop executing. */
198 for (other = first_cpu; other; other = other->next_cpu) {
199 if (other->running) {
200 pending_cpus++;
201 cpu_interrupt(other, CPU_INTERRUPT_EXIT);
202 }
203 }
204 if (pending_cpus > 1) {
205 pthread_cond_wait(&exclusive_cond, &exclusive_lock);
206 }
207 }
208
209 /* Finish an exclusive operation. */
210 static inline void end_exclusive(void)
211 {
212 pending_cpus = 0;
213 pthread_cond_broadcast(&exclusive_resume);
214 pthread_mutex_unlock(&exclusive_lock);
215 }
216
217 /* Wait for exclusive ops to finish, and begin cpu execution. */
218 static inline void cpu_exec_start(CPUState *env)
219 {
220 pthread_mutex_lock(&exclusive_lock);
221 exclusive_idle();
222 env->running = 1;
223 pthread_mutex_unlock(&exclusive_lock);
224 }
225
226 /* Mark cpu as not executing, and release pending exclusive ops. */
227 static inline void cpu_exec_end(CPUState *env)
228 {
229 pthread_mutex_lock(&exclusive_lock);
230 env->running = 0;
231 if (pending_cpus > 1) {
232 pending_cpus--;
233 if (pending_cpus == 1) {
234 pthread_cond_signal(&exclusive_cond);
235 }
236 }
237 exclusive_idle();
238 pthread_mutex_unlock(&exclusive_lock);
239 }
240 #else /* if !USE_NPTL */
241 /* These are no-ops because we are not threadsafe. */
242 static inline void cpu_exec_start(CPUState *env)
243 {
244 }
245
246 static inline void cpu_exec_end(CPUState *env)
247 {
248 }
249
250 static inline void start_exclusive(void)
251 {
252 }
253
254 static inline void end_exclusive(void)
255 {
256 }
257
258 void fork_start(void)
259 {
260 }
261
262 void fork_end(int child)
263 {
264 if (child) {
265 gdbserver_fork(thread_env);
266 }
267 }
268 #endif
269
270
271 #ifdef TARGET_I386
272 /***********************************************************/
273 /* CPUX86 core interface */
274
275 void cpu_smm_update(CPUState *env)
276 {
277 }
278
279 uint64_t cpu_get_tsc(CPUX86State *env)
280 {
281 return cpu_get_real_ticks();
282 }
283
284 static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
285 int flags)
286 {
287 unsigned int e1, e2;
288 uint32_t *p;
289 e1 = (addr << 16) | (limit & 0xffff);
290 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
291 e2 |= flags;
292 p = ptr;
293 p[0] = tswap32(e1);
294 p[1] = tswap32(e2);
295 }
296
297 static uint64_t *idt_table;
298 #ifdef TARGET_X86_64
299 static void set_gate64(void *ptr, unsigned int type, unsigned int dpl,
300 uint64_t addr, unsigned int sel)
301 {
302 uint32_t *p, e1, e2;
303 e1 = (addr & 0xffff) | (sel << 16);
304 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
305 p = ptr;
306 p[0] = tswap32(e1);
307 p[1] = tswap32(e2);
308 p[2] = tswap32(addr >> 32);
309 p[3] = 0;
310 }
311 /* only dpl matters as we do only user space emulation */
312 static void set_idt(int n, unsigned int dpl)
313 {
314 set_gate64(idt_table + n * 2, 0, dpl, 0, 0);
315 }
316 #else
317 static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
318 uint32_t addr, unsigned int sel)
319 {
320 uint32_t *p, e1, e2;
321 e1 = (addr & 0xffff) | (sel << 16);
322 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
323 p = ptr;
324 p[0] = tswap32(e1);
325 p[1] = tswap32(e2);
326 }
327
328 /* only dpl matters as we do only user space emulation */
329 static void set_idt(int n, unsigned int dpl)
330 {
331 set_gate(idt_table + n, 0, dpl, 0, 0);
332 }
333 #endif
334
335 void cpu_loop(CPUX86State *env)
336 {
337 int trapnr;
338 abi_ulong pc;
339 target_siginfo_t info;
340
341 for(;;) {
342 trapnr = cpu_x86_exec(env);
343 switch(trapnr) {
344 case 0x80:
345 /* linux syscall from int $0x80 */
346 env->regs[R_EAX] = do_syscall(env,
347 env->regs[R_EAX],
348 env->regs[R_EBX],
349 env->regs[R_ECX],
350 env->regs[R_EDX],
351 env->regs[R_ESI],
352 env->regs[R_EDI],
353 env->regs[R_EBP]);
354 break;
355 #ifndef TARGET_ABI32
356 case EXCP_SYSCALL:
357 /* linux syscall from syscall intruction */
358 env->regs[R_EAX] = do_syscall(env,
359 env->regs[R_EAX],
360 env->regs[R_EDI],
361 env->regs[R_ESI],
362 env->regs[R_EDX],
363 env->regs[10],
364 env->regs[8],
365 env->regs[9]);
366 env->eip = env->exception_next_eip;
367 break;
368 #endif
369 case EXCP0B_NOSEG:
370 case EXCP0C_STACK:
371 info.si_signo = SIGBUS;
372 info.si_errno = 0;
373 info.si_code = TARGET_SI_KERNEL;
374 info._sifields._sigfault._addr = 0;
375 queue_signal(env, info.si_signo, &info);
376 break;
377 case EXCP0D_GPF:
378 /* XXX: potential problem if ABI32 */
379 #ifndef TARGET_X86_64
380 if (env->eflags & VM_MASK) {
381 handle_vm86_fault(env);
382 } else
383 #endif
384 {
385 info.si_signo = SIGSEGV;
386 info.si_errno = 0;
387 info.si_code = TARGET_SI_KERNEL;
388 info._sifields._sigfault._addr = 0;
389 queue_signal(env, info.si_signo, &info);
390 }
391 break;
392 case EXCP0E_PAGE:
393 info.si_signo = SIGSEGV;
394 info.si_errno = 0;
395 if (!(env->error_code & 1))
396 info.si_code = TARGET_SEGV_MAPERR;
397 else
398 info.si_code = TARGET_SEGV_ACCERR;
399 info._sifields._sigfault._addr = env->cr[2];
400 queue_signal(env, info.si_signo, &info);
401 break;
402 case EXCP00_DIVZ:
403 #ifndef TARGET_X86_64
404 if (env->eflags & VM_MASK) {
405 handle_vm86_trap(env, trapnr);
406 } else
407 #endif
408 {
409 /* division by zero */
410 info.si_signo = SIGFPE;
411 info.si_errno = 0;
412 info.si_code = TARGET_FPE_INTDIV;
413 info._sifields._sigfault._addr = env->eip;
414 queue_signal(env, info.si_signo, &info);
415 }
416 break;
417 case EXCP01_DB:
418 case EXCP03_INT3:
419 #ifndef TARGET_X86_64
420 if (env->eflags & VM_MASK) {
421 handle_vm86_trap(env, trapnr);
422 } else
423 #endif
424 {
425 info.si_signo = SIGTRAP;
426 info.si_errno = 0;
427 if (trapnr == EXCP01_DB) {
428 info.si_code = TARGET_TRAP_BRKPT;
429 info._sifields._sigfault._addr = env->eip;
430 } else {
431 info.si_code = TARGET_SI_KERNEL;
432 info._sifields._sigfault._addr = 0;
433 }
434 queue_signal(env, info.si_signo, &info);
435 }
436 break;
437 case EXCP04_INTO:
438 case EXCP05_BOUND:
439 #ifndef TARGET_X86_64
440 if (env->eflags & VM_MASK) {
441 handle_vm86_trap(env, trapnr);
442 } else
443 #endif
444 {
445 info.si_signo = SIGSEGV;
446 info.si_errno = 0;
447 info.si_code = TARGET_SI_KERNEL;
448 info._sifields._sigfault._addr = 0;
449 queue_signal(env, info.si_signo, &info);
450 }
451 break;
452 case EXCP06_ILLOP:
453 info.si_signo = SIGILL;
454 info.si_errno = 0;
455 info.si_code = TARGET_ILL_ILLOPN;
456 info._sifields._sigfault._addr = env->eip;
457 queue_signal(env, info.si_signo, &info);
458 break;
459 case EXCP_INTERRUPT:
460 /* just indicate that signals should be handled asap */
461 break;
462 case EXCP_DEBUG:
463 {
464 int sig;
465
466 sig = gdb_handlesig (env, TARGET_SIGTRAP);
467 if (sig)
468 {
469 info.si_signo = sig;
470 info.si_errno = 0;
471 info.si_code = TARGET_TRAP_BRKPT;
472 queue_signal(env, info.si_signo, &info);
473 }
474 }
475 break;
476 default:
477 pc = env->segs[R_CS].base + env->eip;
478 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
479 (long)pc, trapnr);
480 abort();
481 }
482 process_pending_signals(env);
483 }
484 }
485 #endif
486
487 #ifdef TARGET_ARM
488
489 static void arm_cache_flush(abi_ulong start, abi_ulong last)
490 {
491 abi_ulong addr, last1;
492
493 if (last < start)
494 return;
495 addr = start;
496 for(;;) {
497 last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
498 if (last1 > last)
499 last1 = last;
500 tb_invalidate_page_range(addr, last1 + 1);
501 if (last1 == last)
502 break;
503 addr = last1 + 1;
504 }
505 }
506
507 /* Handle a jump to the kernel code page. */
508 static int
509 do_kernel_trap(CPUARMState *env)
510 {
511 uint32_t addr;
512 uint32_t cpsr;
513 uint32_t val;
514
515 switch (env->regs[15]) {
516 case 0xffff0fa0: /* __kernel_memory_barrier */
517 /* ??? No-op. Will need to do better for SMP. */
518 break;
519 case 0xffff0fc0: /* __kernel_cmpxchg */
520 /* XXX: This only works between threads, not between processes.
521 It's probably possible to implement this with native host
522 operations. However things like ldrex/strex are much harder so
523 there's not much point trying. */
524 start_exclusive();
525 cpsr = cpsr_read(env);
526 addr = env->regs[2];
527 /* FIXME: This should SEGV if the access fails. */
528 if (get_user_u32(val, addr))
529 val = ~env->regs[0];
530 if (val == env->regs[0]) {
531 val = env->regs[1];
532 /* FIXME: Check for segfaults. */
533 put_user_u32(val, addr);
534 env->regs[0] = 0;
535 cpsr |= CPSR_C;
536 } else {
537 env->regs[0] = -1;
538 cpsr &= ~CPSR_C;
539 }
540 cpsr_write(env, cpsr, CPSR_C);
541 end_exclusive();
542 break;
543 case 0xffff0fe0: /* __kernel_get_tls */
544 env->regs[0] = env->cp15.c13_tls2;
545 break;
546 default:
547 return 1;
548 }
549 /* Jump back to the caller. */
550 addr = env->regs[14];
551 if (addr & 1) {
552 env->thumb = 1;
553 addr &= ~1;
554 }
555 env->regs[15] = addr;
556
557 return 0;
558 }
559
560 void cpu_loop(CPUARMState *env)
561 {
562 int trapnr;
563 unsigned int n, insn;
564 target_siginfo_t info;
565 uint32_t addr;
566
567 for(;;) {
568 cpu_exec_start(env);
569 trapnr = cpu_arm_exec(env);
570 cpu_exec_end(env);
571 switch(trapnr) {
572 case EXCP_UDEF:
573 {
574 TaskState *ts = env->opaque;
575 uint32_t opcode;
576 int rc;
577
578 /* we handle the FPU emulation here, as Linux */
579 /* we get the opcode */
580 /* FIXME - what to do if get_user() fails? */
581 get_user_u32(opcode, env->regs[15]);
582
583 rc = EmulateAll(opcode, &ts->fpa, env);
584 if (rc == 0) { /* illegal instruction */
585 info.si_signo = SIGILL;
586 info.si_errno = 0;
587 info.si_code = TARGET_ILL_ILLOPN;
588 info._sifields._sigfault._addr = env->regs[15];
589 queue_signal(env, info.si_signo, &info);
590 } else if (rc < 0) { /* FP exception */
591 int arm_fpe=0;
592
593 /* translate softfloat flags to FPSR flags */
594 if (-rc & float_flag_invalid)
595 arm_fpe |= BIT_IOC;
596 if (-rc & float_flag_divbyzero)
597 arm_fpe |= BIT_DZC;
598 if (-rc & float_flag_overflow)
599 arm_fpe |= BIT_OFC;
600 if (-rc & float_flag_underflow)
601 arm_fpe |= BIT_UFC;
602 if (-rc & float_flag_inexact)
603 arm_fpe |= BIT_IXC;
604
605 FPSR fpsr = ts->fpa.fpsr;
606 //printf("fpsr 0x%x, arm_fpe 0x%x\n",fpsr,arm_fpe);
607
608 if (fpsr & (arm_fpe << 16)) { /* exception enabled? */
609 info.si_signo = SIGFPE;
610 info.si_errno = 0;
611
612 /* ordered by priority, least first */
613 if (arm_fpe & BIT_IXC) info.si_code = TARGET_FPE_FLTRES;
614 if (arm_fpe & BIT_UFC) info.si_code = TARGET_FPE_FLTUND;
615 if (arm_fpe & BIT_OFC) info.si_code = TARGET_FPE_FLTOVF;
616 if (arm_fpe & BIT_DZC) info.si_code = TARGET_FPE_FLTDIV;
617 if (arm_fpe & BIT_IOC) info.si_code = TARGET_FPE_FLTINV;
618
619 info._sifields._sigfault._addr = env->regs[15];
620 queue_signal(env, info.si_signo, &info);
621 } else {
622 env->regs[15] += 4;
623 }
624
625 /* accumulate unenabled exceptions */
626 if ((!(fpsr & BIT_IXE)) && (arm_fpe & BIT_IXC))
627 fpsr |= BIT_IXC;
628 if ((!(fpsr & BIT_UFE)) && (arm_fpe & BIT_UFC))
629 fpsr |= BIT_UFC;
630 if ((!(fpsr & BIT_OFE)) && (arm_fpe & BIT_OFC))
631 fpsr |= BIT_OFC;
632 if ((!(fpsr & BIT_DZE)) && (arm_fpe & BIT_DZC))
633 fpsr |= BIT_DZC;
634 if ((!(fpsr & BIT_IOE)) && (arm_fpe & BIT_IOC))
635 fpsr |= BIT_IOC;
636 ts->fpa.fpsr=fpsr;
637 } else { /* everything OK */
638 /* increment PC */
639 env->regs[15] += 4;
640 }
641 }
642 break;
643 case EXCP_SWI:
644 case EXCP_BKPT:
645 {
646 env->eabi = 1;
647 /* system call */
648 if (trapnr == EXCP_BKPT) {
649 if (env->thumb) {
650 /* FIXME - what to do if get_user() fails? */
651 get_user_u16(insn, env->regs[15]);
652 n = insn & 0xff;
653 env->regs[15] += 2;
654 } else {
655 /* FIXME - what to do if get_user() fails? */
656 get_user_u32(insn, env->regs[15]);
657 n = (insn & 0xf) | ((insn >> 4) & 0xff0);
658 env->regs[15] += 4;
659 }
660 } else {
661 if (env->thumb) {
662 /* FIXME - what to do if get_user() fails? */
663 get_user_u16(insn, env->regs[15] - 2);
664 n = insn & 0xff;
665 } else {
666 /* FIXME - what to do if get_user() fails? */
667 get_user_u32(insn, env->regs[15] - 4);
668 n = insn & 0xffffff;
669 }
670 }
671
672 if (n == ARM_NR_cacheflush) {
673 arm_cache_flush(env->regs[0], env->regs[1]);
674 } else if (n == ARM_NR_semihosting
675 || n == ARM_NR_thumb_semihosting) {
676 env->regs[0] = do_arm_semihosting (env);
677 } else if (n == 0 || n >= ARM_SYSCALL_BASE
678 || (env->thumb && n == ARM_THUMB_SYSCALL)) {
679 /* linux syscall */
680 if (env->thumb || n == 0) {
681 n = env->regs[7];
682 } else {
683 n -= ARM_SYSCALL_BASE;
684 env->eabi = 0;
685 }
686 if ( n > ARM_NR_BASE) {
687 switch (n) {
688 case ARM_NR_cacheflush:
689 arm_cache_flush(env->regs[0], env->regs[1]);
690 break;
691 case ARM_NR_set_tls:
692 cpu_set_tls(env, env->regs[0]);
693 env->regs[0] = 0;
694 break;
695 default:
696 gemu_log("qemu: Unsupported ARM syscall: 0x%x\n",
697 n);
698 env->regs[0] = -TARGET_ENOSYS;
699 break;
700 }
701 } else {
702 env->regs[0] = do_syscall(env,
703 n,
704 env->regs[0],
705 env->regs[1],
706 env->regs[2],
707 env->regs[3],
708 env->regs[4],
709 env->regs[5]);
710 }
711 } else {
712 goto error;
713 }
714 }
715 break;
716 case EXCP_INTERRUPT:
717 /* just indicate that signals should be handled asap */
718 break;
719 case EXCP_PREFETCH_ABORT:
720 addr = env->cp15.c6_insn;
721 goto do_segv;
722 case EXCP_DATA_ABORT:
723 addr = env->cp15.c6_data;
724 goto do_segv;
725 do_segv:
726 {
727 info.si_signo = SIGSEGV;
728 info.si_errno = 0;
729 /* XXX: check env->error_code */
730 info.si_code = TARGET_SEGV_MAPERR;
731 info._sifields._sigfault._addr = addr;
732 queue_signal(env, info.si_signo, &info);
733 }
734 break;
735 case EXCP_DEBUG:
736 {
737 int sig;
738
739 sig = gdb_handlesig (env, TARGET_SIGTRAP);
740 if (sig)
741 {
742 info.si_signo = sig;
743 info.si_errno = 0;
744 info.si_code = TARGET_TRAP_BRKPT;
745 queue_signal(env, info.si_signo, &info);
746 }
747 }
748 break;
749 case EXCP_KERNEL_TRAP:
750 if (do_kernel_trap(env))
751 goto error;
752 break;
753 default:
754 error:
755 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
756 trapnr);
757 cpu_dump_state(env, stderr, fprintf, 0);
758 abort();
759 }
760 process_pending_signals(env);
761 }
762 }
763
764 #endif
765
766 #ifdef TARGET_SPARC
767 #define SPARC64_STACK_BIAS 2047
768
769 //#define DEBUG_WIN
770
771 /* WARNING: dealing with register windows _is_ complicated. More info
772 can be found at http://www.sics.se/~psm/sparcstack.html */
773 static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
774 {
775 index = (index + cwp * 16) % (16 * env->nwindows);
776 /* wrap handling : if cwp is on the last window, then we use the
777 registers 'after' the end */
778 if (index < 8 && env->cwp == env->nwindows - 1)
779 index += 16 * env->nwindows;
780 return index;
781 }
782
783 /* save the register window 'cwp1' */
784 static inline void save_window_offset(CPUSPARCState *env, int cwp1)
785 {
786 unsigned int i;
787 abi_ulong sp_ptr;
788
789 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
790 #ifdef TARGET_SPARC64
791 if (sp_ptr & 3)
792 sp_ptr += SPARC64_STACK_BIAS;
793 #endif
794 #if defined(DEBUG_WIN)
795 printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n",
796 sp_ptr, cwp1);
797 #endif
798 for(i = 0; i < 16; i++) {
799 /* FIXME - what to do if put_user() fails? */
800 put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
801 sp_ptr += sizeof(abi_ulong);
802 }
803 }
804
805 static void save_window(CPUSPARCState *env)
806 {
807 #ifndef TARGET_SPARC64
808 unsigned int new_wim;
809 new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) &
810 ((1LL << env->nwindows) - 1);
811 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
812 env->wim = new_wim;
813 #else
814 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
815 env->cansave++;
816 env->canrestore--;
817 #endif
818 }
819
820 static void restore_window(CPUSPARCState *env)
821 {
822 #ifndef TARGET_SPARC64
823 unsigned int new_wim;
824 #endif
825 unsigned int i, cwp1;
826 abi_ulong sp_ptr;
827
828 #ifndef TARGET_SPARC64
829 new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) &
830 ((1LL << env->nwindows) - 1);
831 #endif
832
833 /* restore the invalid window */
834 cwp1 = cpu_cwp_inc(env, env->cwp + 1);
835 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
836 #ifdef TARGET_SPARC64
837 if (sp_ptr & 3)
838 sp_ptr += SPARC64_STACK_BIAS;
839 #endif
840 #if defined(DEBUG_WIN)
841 printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n",
842 sp_ptr, cwp1);
843 #endif
844 for(i = 0; i < 16; i++) {
845 /* FIXME - what to do if get_user() fails? */
846 get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
847 sp_ptr += sizeof(abi_ulong);
848 }
849 #ifdef TARGET_SPARC64
850 env->canrestore++;
851 if (env->cleanwin < env->nwindows - 1)
852 env->cleanwin++;
853 env->cansave--;
854 #else
855 env->wim = new_wim;
856 #endif
857 }
858
859 static void flush_windows(CPUSPARCState *env)
860 {
861 int offset, cwp1;
862
863 offset = 1;
864 for(;;) {
865 /* if restore would invoke restore_window(), then we can stop */
866 cwp1 = cpu_cwp_inc(env, env->cwp + offset);
867 #ifndef TARGET_SPARC64
868 if (env->wim & (1 << cwp1))
869 break;
870 #else
871 if (env->canrestore == 0)
872 break;
873 env->cansave++;
874 env->canrestore--;
875 #endif
876 save_window_offset(env, cwp1);
877 offset++;
878 }
879 cwp1 = cpu_cwp_inc(env, env->cwp + 1);
880 #ifndef TARGET_SPARC64
881 /* set wim so that restore will reload the registers */
882 env->wim = 1 << cwp1;
883 #endif
884 #if defined(DEBUG_WIN)
885 printf("flush_windows: nb=%d\n", offset - 1);
886 #endif
887 }
888
889 void cpu_loop (CPUSPARCState *env)
890 {
891 int trapnr, ret;
892 target_siginfo_t info;
893
894 while (1) {
895 trapnr = cpu_sparc_exec (env);
896
897 switch (trapnr) {
898 #ifndef TARGET_SPARC64
899 case 0x88:
900 case 0x90:
901 #else
902 case 0x110:
903 case 0x16d:
904 #endif
905 ret = do_syscall (env, env->gregs[1],
906 env->regwptr[0], env->regwptr[1],
907 env->regwptr[2], env->regwptr[3],
908 env->regwptr[4], env->regwptr[5]);
909 if ((unsigned int)ret >= (unsigned int)(-515)) {
910 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
911 env->xcc |= PSR_CARRY;
912 #else
913 env->psr |= PSR_CARRY;
914 #endif
915 ret = -ret;
916 } else {
917 #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
918 env->xcc &= ~PSR_CARRY;
919 #else
920 env->psr &= ~PSR_CARRY;
921 #endif
922 }
923 env->regwptr[0] = ret;
924 /* next instruction */
925 env->pc = env->npc;
926 env->npc = env->npc + 4;
927 break;
928 case 0x83: /* flush windows */
929 #ifdef TARGET_ABI32
930 case 0x103:
931 #endif
932 flush_windows(env);
933 /* next instruction */
934 env->pc = env->npc;
935 env->npc = env->npc + 4;
936 break;
937 #ifndef TARGET_SPARC64
938 case TT_WIN_OVF: /* window overflow */
939 save_window(env);
940 break;
941 case TT_WIN_UNF: /* window underflow */
942 restore_window(env);
943 break;
944 case TT_TFAULT:
945 case TT_DFAULT:
946 {
947 info.si_signo = SIGSEGV;
948 info.si_errno = 0;
949 /* XXX: check env->error_code */
950 info.si_code = TARGET_SEGV_MAPERR;
951 info._sifields._sigfault._addr = env->mmuregs[4];
952 queue_signal(env, info.si_signo, &info);
953 }
954 break;
955 #else
956 case TT_SPILL: /* window overflow */
957 save_window(env);
958 break;
959 case TT_FILL: /* window underflow */
960 restore_window(env);
961 break;
962 case TT_TFAULT:
963 case TT_DFAULT:
964 {
965 info.si_signo = SIGSEGV;
966 info.si_errno = 0;
967 /* XXX: check env->error_code */
968 info.si_code = TARGET_SEGV_MAPERR;
969 if (trapnr == TT_DFAULT)
970 info._sifields._sigfault._addr = env->dmmuregs[4];
971 else
972 info._sifields._sigfault._addr = env->tsptr->tpc;
973 queue_signal(env, info.si_signo, &info);
974 }
975 break;
976 #ifndef TARGET_ABI32
977 case 0x16e:
978 flush_windows(env);
979 sparc64_get_context(env);
980 break;
981 case 0x16f:
982 flush_windows(env);
983 sparc64_set_context(env);
984 break;
985 #endif
986 #endif
987 case EXCP_INTERRUPT:
988 /* just indicate that signals should be handled asap */
989 break;
990 case EXCP_DEBUG:
991 {
992 int sig;
993
994 sig = gdb_handlesig (env, TARGET_SIGTRAP);
995 if (sig)
996 {
997 info.si_signo = sig;
998 info.si_errno = 0;
999 info.si_code = TARGET_TRAP_BRKPT;
1000 queue_signal(env, info.si_signo, &info);
1001 }
1002 }
1003 break;
1004 default:
1005 printf ("Unhandled trap: 0x%x\n", trapnr);
1006 cpu_dump_state(env, stderr, fprintf, 0);
1007 exit (1);
1008 }
1009 process_pending_signals (env);
1010 }
1011 }
1012
1013 #endif
1014
1015 #ifdef TARGET_PPC
1016 static inline uint64_t cpu_ppc_get_tb (CPUState *env)
1017 {
1018 /* TO FIX */
1019 return 0;
1020 }
1021
1022 uint32_t cpu_ppc_load_tbl (CPUState *env)
1023 {
1024 return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
1025 }
1026
1027 uint32_t cpu_ppc_load_tbu (CPUState *env)
1028 {
1029 return cpu_ppc_get_tb(env) >> 32;
1030 }
1031
1032 uint32_t cpu_ppc_load_atbl (CPUState *env)
1033 {
1034 return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
1035 }
1036
1037 uint32_t cpu_ppc_load_atbu (CPUState *env)
1038 {
1039 return cpu_ppc_get_tb(env) >> 32;
1040 }
1041
1042 uint32_t cpu_ppc601_load_rtcu (CPUState *env)
1043 __attribute__ (( alias ("cpu_ppc_load_tbu") ));
1044
1045 uint32_t cpu_ppc601_load_rtcl (CPUState *env)
1046 {
1047 return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
1048 }
1049
1050 /* XXX: to be fixed */
1051 int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, target_ulong *valp)
1052 {
1053 return -1;
1054 }
1055
1056 int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, target_ulong val)
1057 {
1058 return -1;
1059 }
1060
1061 #define EXCP_DUMP(env, fmt, args...) \
1062 do { \
1063 fprintf(stderr, fmt , ##args); \
1064 cpu_dump_state(env, stderr, fprintf, 0); \
1065 qemu_log(fmt, ##args); \
1066 log_cpu_state(env, 0); \
1067 } while (0)
1068
1069 void cpu_loop(CPUPPCState *env)
1070 {
1071 target_siginfo_t info;
1072 int trapnr;
1073 uint32_t ret;
1074
1075 for(;;) {
1076 trapnr = cpu_ppc_exec(env);
1077 switch(trapnr) {
1078 case POWERPC_EXCP_NONE:
1079 /* Just go on */
1080 break;
1081 case POWERPC_EXCP_CRITICAL: /* Critical input */
1082 cpu_abort(env, "Critical interrupt while in user mode. "
1083 "Aborting\n");
1084 break;
1085 case POWERPC_EXCP_MCHECK: /* Machine check exception */
1086 cpu_abort(env, "Machine check exception while in user mode. "
1087 "Aborting\n");
1088 break;
1089 case POWERPC_EXCP_DSI: /* Data storage exception */
1090 EXCP_DUMP(env, "Invalid data memory access: 0x" ADDRX "\n",
1091 env->spr[SPR_DAR]);
1092 /* XXX: check this. Seems bugged */
1093 switch (env->error_code & 0xFF000000) {
1094 case 0x40000000:
1095 info.si_signo = TARGET_SIGSEGV;
1096 info.si_errno = 0;
1097 info.si_code = TARGET_SEGV_MAPERR;
1098 break;
1099 case 0x04000000:
1100 info.si_signo = TARGET_SIGILL;
1101 info.si_errno = 0;
1102 info.si_code = TARGET_ILL_ILLADR;
1103 break;
1104 case 0x08000000:
1105 info.si_signo = TARGET_SIGSEGV;
1106 info.si_errno = 0;
1107 info.si_code = TARGET_SEGV_ACCERR;
1108 break;
1109 default:
1110 /* Let's send a regular segfault... */
1111 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1112 env->error_code);
1113 info.si_signo = TARGET_SIGSEGV;
1114 info.si_errno = 0;
1115 info.si_code = TARGET_SEGV_MAPERR;
1116 break;
1117 }
1118 info._sifields._sigfault._addr = env->nip;
1119 queue_signal(env, info.si_signo, &info);
1120 break;
1121 case POWERPC_EXCP_ISI: /* Instruction storage exception */
1122 EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" ADDRX "\n",
1123 env->spr[SPR_SRR0]);
1124 /* XXX: check this */
1125 switch (env->error_code & 0xFF000000) {
1126 case 0x40000000:
1127 info.si_signo = TARGET_SIGSEGV;
1128 info.si_errno = 0;
1129 info.si_code = TARGET_SEGV_MAPERR;
1130 break;
1131 case 0x10000000:
1132 case 0x08000000:
1133 info.si_signo = TARGET_SIGSEGV;
1134 info.si_errno = 0;
1135 info.si_code = TARGET_SEGV_ACCERR;
1136 break;
1137 default:
1138 /* Let's send a regular segfault... */
1139 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1140 env->error_code);
1141 info.si_signo = TARGET_SIGSEGV;
1142 info.si_errno = 0;
1143 info.si_code = TARGET_SEGV_MAPERR;
1144 break;
1145 }
1146 info._sifields._sigfault._addr = env->nip - 4;
1147 queue_signal(env, info.si_signo, &info);
1148 break;
1149 case POWERPC_EXCP_EXTERNAL: /* External input */
1150 cpu_abort(env, "External interrupt while in user mode. "
1151 "Aborting\n");
1152 break;
1153 case POWERPC_EXCP_ALIGN: /* Alignment exception */
1154 EXCP_DUMP(env, "Unaligned memory access\n");
1155 /* XXX: check this */
1156 info.si_signo = TARGET_SIGBUS;
1157 info.si_errno = 0;
1158 info.si_code = TARGET_BUS_ADRALN;
1159 info._sifields._sigfault._addr = env->nip - 4;
1160 queue_signal(env, info.si_signo, &info);
1161 break;
1162 case POWERPC_EXCP_PROGRAM: /* Program exception */
1163 /* XXX: check this */
1164 switch (env->error_code & ~0xF) {
1165 case POWERPC_EXCP_FP:
1166 EXCP_DUMP(env, "Floating point program exception\n");
1167 info.si_signo = TARGET_SIGFPE;
1168 info.si_errno = 0;
1169 switch (env->error_code & 0xF) {
1170 case POWERPC_EXCP_FP_OX:
1171 info.si_code = TARGET_FPE_FLTOVF;
1172 break;
1173 case POWERPC_EXCP_FP_UX:
1174 info.si_code = TARGET_FPE_FLTUND;
1175 break;
1176 case POWERPC_EXCP_FP_ZX:
1177 case POWERPC_EXCP_FP_VXZDZ:
1178 info.si_code = TARGET_FPE_FLTDIV;
1179 break;
1180 case POWERPC_EXCP_FP_XX:
1181 info.si_code = TARGET_FPE_FLTRES;
1182 break;
1183 case POWERPC_EXCP_FP_VXSOFT:
1184 info.si_code = TARGET_FPE_FLTINV;
1185 break;
1186 case POWERPC_EXCP_FP_VXSNAN:
1187 case POWERPC_EXCP_FP_VXISI:
1188 case POWERPC_EXCP_FP_VXIDI:
1189 case POWERPC_EXCP_FP_VXIMZ:
1190 case POWERPC_EXCP_FP_VXVC:
1191 case POWERPC_EXCP_FP_VXSQRT:
1192 case POWERPC_EXCP_FP_VXCVI:
1193 info.si_code = TARGET_FPE_FLTSUB;
1194 break;
1195 default:
1196 EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
1197 env->error_code);
1198 break;
1199 }
1200 break;
1201 case POWERPC_EXCP_INVAL:
1202 EXCP_DUMP(env, "Invalid instruction\n");
1203 info.si_signo = TARGET_SIGILL;
1204 info.si_errno = 0;
1205 switch (env->error_code & 0xF) {
1206 case POWERPC_EXCP_INVAL_INVAL:
1207 info.si_code = TARGET_ILL_ILLOPC;
1208 break;
1209 case POWERPC_EXCP_INVAL_LSWX:
1210 info.si_code = TARGET_ILL_ILLOPN;
1211 break;
1212 case POWERPC_EXCP_INVAL_SPR:
1213 info.si_code = TARGET_ILL_PRVREG;
1214 break;
1215 case POWERPC_EXCP_INVAL_FP:
1216 info.si_code = TARGET_ILL_COPROC;
1217 break;
1218 default:
1219 EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
1220 env->error_code & 0xF);
1221 info.si_code = TARGET_ILL_ILLADR;
1222 break;
1223 }
1224 break;
1225 case POWERPC_EXCP_PRIV:
1226 EXCP_DUMP(env, "Privilege violation\n");
1227 info.si_signo = TARGET_SIGILL;
1228 info.si_errno = 0;
1229 switch (env->error_code & 0xF) {
1230 case POWERPC_EXCP_PRIV_OPC:
1231 info.si_code = TARGET_ILL_PRVOPC;
1232 break;
1233 case POWERPC_EXCP_PRIV_REG:
1234 info.si_code = TARGET_ILL_PRVREG;
1235 break;
1236 default:
1237 EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
1238 env->error_code & 0xF);
1239 info.si_code = TARGET_ILL_PRVOPC;
1240 break;
1241 }
1242 break;
1243 case POWERPC_EXCP_TRAP:
1244 cpu_abort(env, "Tried to call a TRAP\n");
1245 break;
1246 default:
1247 /* Should not happen ! */
1248 cpu_abort(env, "Unknown program exception (%02x)\n",
1249 env->error_code);
1250 break;
1251 }
1252 info._sifields._sigfault._addr = env->nip - 4;
1253 queue_signal(env, info.si_signo, &info);
1254 break;
1255 case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
1256 EXCP_DUMP(env, "No floating point allowed\n");
1257 info.si_signo = TARGET_SIGILL;
1258 info.si_errno = 0;
1259 info.si_code = TARGET_ILL_COPROC;
1260 info._sifields._sigfault._addr = env->nip - 4;
1261 queue_signal(env, info.si_signo, &info);
1262 break;
1263 case POWERPC_EXCP_SYSCALL: /* System call exception */
1264 cpu_abort(env, "Syscall exception while in user mode. "
1265 "Aborting\n");
1266 break;
1267 case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
1268 EXCP_DUMP(env, "No APU instruction allowed\n");
1269 info.si_signo = TARGET_SIGILL;
1270 info.si_errno = 0;
1271 info.si_code = TARGET_ILL_COPROC;
1272 info._sifields._sigfault._addr = env->nip - 4;
1273 queue_signal(env, info.si_signo, &info);
1274 break;
1275 case POWERPC_EXCP_DECR: /* Decrementer exception */
1276 cpu_abort(env, "Decrementer interrupt while in user mode. "
1277 "Aborting\n");
1278 break;
1279 case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
1280 cpu_abort(env, "Fix interval timer interrupt while in user mode. "
1281 "Aborting\n");
1282 break;
1283 case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
1284 cpu_abort(env, "Watchdog timer interrupt while in user mode. "
1285 "Aborting\n");
1286 break;
1287 case POWERPC_EXCP_DTLB: /* Data TLB error */
1288 cpu_abort(env, "Data TLB exception while in user mode. "
1289 "Aborting\n");
1290 break;
1291 case POWERPC_EXCP_ITLB: /* Instruction TLB error */
1292 cpu_abort(env, "Instruction TLB exception while in user mode. "
1293 "Aborting\n");
1294 break;
1295 case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */
1296 EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
1297 info.si_signo = TARGET_SIGILL;
1298 info.si_errno = 0;
1299 info.si_code = TARGET_ILL_COPROC;
1300 info._sifields._sigfault._addr = env->nip - 4;
1301 queue_signal(env, info.si_signo, &info);
1302 break;
1303 case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */
1304 cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
1305 break;
1306 case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */
1307 cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
1308 break;
1309 case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */
1310 cpu_abort(env, "Performance monitor exception not handled\n");
1311 break;
1312 case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
1313 cpu_abort(env, "Doorbell interrupt while in user mode. "
1314 "Aborting\n");
1315 break;
1316 case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
1317 cpu_abort(env, "Doorbell critical interrupt while in user mode. "
1318 "Aborting\n");
1319 break;
1320 case POWERPC_EXCP_RESET: /* System reset exception */
1321 cpu_abort(env, "Reset interrupt while in user mode. "
1322 "Aborting\n");
1323 break;
1324 case POWERPC_EXCP_DSEG: /* Data segment exception */
1325 cpu_abort(env, "Data segment exception while in user mode. "
1326 "Aborting\n");
1327 break;
1328 case POWERPC_EXCP_ISEG: /* Instruction segment exception */
1329 cpu_abort(env, "Instruction segment exception "
1330 "while in user mode. Aborting\n");
1331 break;
1332 /* PowerPC 64 with hypervisor mode support */
1333 case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
1334 cpu_abort(env, "Hypervisor decrementer interrupt "
1335 "while in user mode. Aborting\n");
1336 break;
1337 case POWERPC_EXCP_TRACE: /* Trace exception */
1338 /* Nothing to do:
1339 * we use this exception to emulate step-by-step execution mode.
1340 */
1341 break;
1342 /* PowerPC 64 with hypervisor mode support */
1343 case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
1344 cpu_abort(env, "Hypervisor data storage exception "
1345 "while in user mode. Aborting\n");
1346 break;
1347 case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */
1348 cpu_abort(env, "Hypervisor instruction storage exception "
1349 "while in user mode. Aborting\n");
1350 break;
1351 case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
1352 cpu_abort(env, "Hypervisor data segment exception "
1353 "while in user mode. Aborting\n");
1354 break;
1355 case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */
1356 cpu_abort(env, "Hypervisor instruction segment exception "
1357 "while in user mode. Aborting\n");
1358 break;
1359 case POWERPC_EXCP_VPU: /* Vector unavailable exception */
1360 EXCP_DUMP(env, "No Altivec instructions allowed\n");
1361 info.si_signo = TARGET_SIGILL;
1362 info.si_errno = 0;
1363 info.si_code = TARGET_ILL_COPROC;
1364 info._sifields._sigfault._addr = env->nip - 4;
1365 queue_signal(env, info.si_signo, &info);
1366 break;
1367 case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */
1368 cpu_abort(env, "Programable interval timer interrupt "
1369 "while in user mode. Aborting\n");
1370 break;
1371 case POWERPC_EXCP_IO: /* IO error exception */
1372 cpu_abort(env, "IO error exception while in user mode. "
1373 "Aborting\n");
1374 break;
1375 case POWERPC_EXCP_RUNM: /* Run mode exception */
1376 cpu_abort(env, "Run mode exception while in user mode. "
1377 "Aborting\n");
1378 break;
1379 case POWERPC_EXCP_EMUL: /* Emulation trap exception */
1380 cpu_abort(env, "Emulation trap exception not handled\n");
1381 break;
1382 case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
1383 cpu_abort(env, "Instruction fetch TLB exception "
1384 "while in user-mode. Aborting");
1385 break;
1386 case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
1387 cpu_abort(env, "Data load TLB exception while in user-mode. "
1388 "Aborting");
1389 break;
1390 case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
1391 cpu_abort(env, "Data store TLB exception while in user-mode. "
1392 "Aborting");
1393 break;
1394 case POWERPC_EXCP_FPA: /* Floating-point assist exception */
1395 cpu_abort(env, "Floating-point assist exception not handled\n");
1396 break;
1397 case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
1398 cpu_abort(env, "Instruction address breakpoint exception "
1399 "not handled\n");
1400 break;
1401 case POWERPC_EXCP_SMI: /* System management interrupt */
1402 cpu_abort(env, "System management interrupt while in user mode. "
1403 "Aborting\n");
1404 break;
1405 case POWERPC_EXCP_THERM: /* Thermal interrupt */
1406 cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
1407 "Aborting\n");
1408 break;
1409 case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */
1410 cpu_abort(env, "Performance monitor exception not handled\n");
1411 break;
1412 case POWERPC_EXCP_VPUA: /* Vector assist exception */
1413 cpu_abort(env, "Vector assist exception not handled\n");
1414 break;
1415 case POWERPC_EXCP_SOFTP: /* Soft patch exception */
1416 cpu_abort(env, "Soft patch exception not handled\n");
1417 break;
1418 case POWERPC_EXCP_MAINT: /* Maintenance exception */
1419 cpu_abort(env, "Maintenance exception while in user mode. "
1420 "Aborting\n");
1421 break;
1422 case POWERPC_EXCP_STOP: /* stop translation */
1423 /* We did invalidate the instruction cache. Go on */
1424 break;
1425 case POWERPC_EXCP_BRANCH: /* branch instruction: */
1426 /* We just stopped because of a branch. Go on */
1427 break;
1428 case POWERPC_EXCP_SYSCALL_USER:
1429 /* system call in user-mode emulation */
1430 /* WARNING:
1431 * PPC ABI uses overflow flag in cr0 to signal an error
1432 * in syscalls.
1433 */
1434 #if 0
1435 printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
1436 env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
1437 #endif
1438 env->crf[0] &= ~0x1;
1439 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
1440 env->gpr[5], env->gpr[6], env->gpr[7],
1441 env->gpr[8]);
1442 if (ret > (uint32_t)(-515)) {
1443 env->crf[0] |= 0x1;
1444 ret = -ret;
1445 }
1446 env->gpr[3] = ret;
1447 #if 0
1448 printf("syscall returned 0x%08x (%d)\n", ret, ret);
1449 #endif
1450 break;
1451 case EXCP_DEBUG:
1452 {
1453 int sig;
1454
1455 sig = gdb_handlesig(env, TARGET_SIGTRAP);
1456 if (sig) {
1457 info.si_signo = sig;
1458 info.si_errno = 0;
1459 info.si_code = TARGET_TRAP_BRKPT;
1460 queue_signal(env, info.si_signo, &info);
1461 }
1462 }
1463 break;
1464 case EXCP_INTERRUPT:
1465 /* just indicate that signals should be handled asap */
1466 break;
1467 default:
1468 cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
1469 break;
1470 }
1471 process_pending_signals(env);
1472 }
1473 }
1474 #endif
1475
1476 #ifdef TARGET_MIPS
1477
1478 #define MIPS_SYS(name, args) args,
1479
1480 static const uint8_t mips_syscall_args[] = {
1481 MIPS_SYS(sys_syscall , 0) /* 4000 */
1482 MIPS_SYS(sys_exit , 1)
1483 MIPS_SYS(sys_fork , 0)
1484 MIPS_SYS(sys_read , 3)
1485 MIPS_SYS(sys_write , 3)
1486 MIPS_SYS(sys_open , 3) /* 4005 */
1487 MIPS_SYS(sys_close , 1)
1488 MIPS_SYS(sys_waitpid , 3)
1489 MIPS_SYS(sys_creat , 2)
1490 MIPS_SYS(sys_link , 2)
1491 MIPS_SYS(sys_unlink , 1) /* 4010 */
1492 MIPS_SYS(sys_execve , 0)
1493 MIPS_SYS(sys_chdir , 1)
1494 MIPS_SYS(sys_time , 1)
1495 MIPS_SYS(sys_mknod , 3)
1496 MIPS_SYS(sys_chmod , 2) /* 4015 */
1497 MIPS_SYS(sys_lchown , 3)
1498 MIPS_SYS(sys_ni_syscall , 0)
1499 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1500 MIPS_SYS(sys_lseek , 3)
1501 MIPS_SYS(sys_getpid , 0) /* 4020 */
1502 MIPS_SYS(sys_mount , 5)
1503 MIPS_SYS(sys_oldumount , 1)
1504 MIPS_SYS(sys_setuid , 1)
1505 MIPS_SYS(sys_getuid , 0)
1506 MIPS_SYS(sys_stime , 1) /* 4025 */
1507 MIPS_SYS(sys_ptrace , 4)
1508 MIPS_SYS(sys_alarm , 1)
1509 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1510 MIPS_SYS(sys_pause , 0)
1511 MIPS_SYS(sys_utime , 2) /* 4030 */
1512 MIPS_SYS(sys_ni_syscall , 0)
1513 MIPS_SYS(sys_ni_syscall , 0)
1514 MIPS_SYS(sys_access , 2)
1515 MIPS_SYS(sys_nice , 1)
1516 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1517 MIPS_SYS(sys_sync , 0)
1518 MIPS_SYS(sys_kill , 2)
1519 MIPS_SYS(sys_rename , 2)
1520 MIPS_SYS(sys_mkdir , 2)
1521 MIPS_SYS(sys_rmdir , 1) /* 4040 */
1522 MIPS_SYS(sys_dup , 1)
1523 MIPS_SYS(sys_pipe , 0)
1524 MIPS_SYS(sys_times , 1)
1525 MIPS_SYS(sys_ni_syscall , 0)
1526 MIPS_SYS(sys_brk , 1) /* 4045 */
1527 MIPS_SYS(sys_setgid , 1)
1528 MIPS_SYS(sys_getgid , 0)
1529 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1530 MIPS_SYS(sys_geteuid , 0)
1531 MIPS_SYS(sys_getegid , 0) /* 4050 */
1532 MIPS_SYS(sys_acct , 0)
1533 MIPS_SYS(sys_umount , 2)
1534 MIPS_SYS(sys_ni_syscall , 0)
1535 MIPS_SYS(sys_ioctl , 3)
1536 MIPS_SYS(sys_fcntl , 3) /* 4055 */
1537 MIPS_SYS(sys_ni_syscall , 2)
1538 MIPS_SYS(sys_setpgid , 2)
1539 MIPS_SYS(sys_ni_syscall , 0)
1540 MIPS_SYS(sys_olduname , 1)
1541 MIPS_SYS(sys_umask , 1) /* 4060 */
1542 MIPS_SYS(sys_chroot , 1)
1543 MIPS_SYS(sys_ustat , 2)
1544 MIPS_SYS(sys_dup2 , 2)
1545 MIPS_SYS(sys_getppid , 0)
1546 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1547 MIPS_SYS(sys_setsid , 0)
1548 MIPS_SYS(sys_sigaction , 3)
1549 MIPS_SYS(sys_sgetmask , 0)
1550 MIPS_SYS(sys_ssetmask , 1)
1551 MIPS_SYS(sys_setreuid , 2) /* 4070 */
1552 MIPS_SYS(sys_setregid , 2)
1553 MIPS_SYS(sys_sigsuspend , 0)
1554 MIPS_SYS(sys_sigpending , 1)
1555 MIPS_SYS(sys_sethostname , 2)
1556 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1557 MIPS_SYS(sys_getrlimit , 2)
1558 MIPS_SYS(sys_getrusage , 2)
1559 MIPS_SYS(sys_gettimeofday, 2)
1560 MIPS_SYS(sys_settimeofday, 2)
1561 MIPS_SYS(sys_getgroups , 2) /* 4080 */
1562 MIPS_SYS(sys_setgroups , 2)
1563 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1564 MIPS_SYS(sys_symlink , 2)
1565 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1566 MIPS_SYS(sys_readlink , 3) /* 4085 */
1567 MIPS_SYS(sys_uselib , 1)
1568 MIPS_SYS(sys_swapon , 2)
1569 MIPS_SYS(sys_reboot , 3)
1570 MIPS_SYS(old_readdir , 3)
1571 MIPS_SYS(old_mmap , 6) /* 4090 */
1572 MIPS_SYS(sys_munmap , 2)
1573 MIPS_SYS(sys_truncate , 2)
1574 MIPS_SYS(sys_ftruncate , 2)
1575 MIPS_SYS(sys_fchmod , 2)
1576 MIPS_SYS(sys_fchown , 3) /* 4095 */
1577 MIPS_SYS(sys_getpriority , 2)
1578 MIPS_SYS(sys_setpriority , 3)
1579 MIPS_SYS(sys_ni_syscall , 0)
1580 MIPS_SYS(sys_statfs , 2)
1581 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1582 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1583 MIPS_SYS(sys_socketcall , 2)
1584 MIPS_SYS(sys_syslog , 3)
1585 MIPS_SYS(sys_setitimer , 3)
1586 MIPS_SYS(sys_getitimer , 2) /* 4105 */
1587 MIPS_SYS(sys_newstat , 2)
1588 MIPS_SYS(sys_newlstat , 2)
1589 MIPS_SYS(sys_newfstat , 2)
1590 MIPS_SYS(sys_uname , 1)
1591 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1592 MIPS_SYS(sys_vhangup , 0)
1593 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1594 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1595 MIPS_SYS(sys_wait4 , 4)
1596 MIPS_SYS(sys_swapoff , 1) /* 4115 */
1597 MIPS_SYS(sys_sysinfo , 1)
1598 MIPS_SYS(sys_ipc , 6)
1599 MIPS_SYS(sys_fsync , 1)
1600 MIPS_SYS(sys_sigreturn , 0)
1601 MIPS_SYS(sys_clone , 0) /* 4120 */
1602 MIPS_SYS(sys_setdomainname, 2)
1603 MIPS_SYS(sys_newuname , 1)
1604 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1605 MIPS_SYS(sys_adjtimex , 1)
1606 MIPS_SYS(sys_mprotect , 3) /* 4125 */
1607 MIPS_SYS(sys_sigprocmask , 3)
1608 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1609 MIPS_SYS(sys_init_module , 5)
1610 MIPS_SYS(sys_delete_module, 1)
1611 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1612 MIPS_SYS(sys_quotactl , 0)
1613 MIPS_SYS(sys_getpgid , 1)
1614 MIPS_SYS(sys_fchdir , 1)
1615 MIPS_SYS(sys_bdflush , 2)
1616 MIPS_SYS(sys_sysfs , 3) /* 4135 */
1617 MIPS_SYS(sys_personality , 1)
1618 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1619 MIPS_SYS(sys_setfsuid , 1)
1620 MIPS_SYS(sys_setfsgid , 1)
1621 MIPS_SYS(sys_llseek , 5) /* 4140 */
1622 MIPS_SYS(sys_getdents , 3)
1623 MIPS_SYS(sys_select , 5)
1624 MIPS_SYS(sys_flock , 2)
1625 MIPS_SYS(sys_msync , 3)
1626 MIPS_SYS(sys_readv , 3) /* 4145 */
1627 MIPS_SYS(sys_writev , 3)
1628 MIPS_SYS(sys_cacheflush , 3)
1629 MIPS_SYS(sys_cachectl , 3)
1630 MIPS_SYS(sys_sysmips , 4)
1631 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1632 MIPS_SYS(sys_getsid , 1)
1633 MIPS_SYS(sys_fdatasync , 0)
1634 MIPS_SYS(sys_sysctl , 1)
1635 MIPS_SYS(sys_mlock , 2)
1636 MIPS_SYS(sys_munlock , 2) /* 4155 */
1637 MIPS_SYS(sys_mlockall , 1)
1638 MIPS_SYS(sys_munlockall , 0)
1639 MIPS_SYS(sys_sched_setparam, 2)
1640 MIPS_SYS(sys_sched_getparam, 2)
1641 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1642 MIPS_SYS(sys_sched_getscheduler, 1)
1643 MIPS_SYS(sys_sched_yield , 0)
1644 MIPS_SYS(sys_sched_get_priority_max, 1)
1645 MIPS_SYS(sys_sched_get_priority_min, 1)
1646 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1647 MIPS_SYS(sys_nanosleep, 2)
1648 MIPS_SYS(sys_mremap , 4)
1649 MIPS_SYS(sys_accept , 3)
1650 MIPS_SYS(sys_bind , 3)
1651 MIPS_SYS(sys_connect , 3) /* 4170 */
1652 MIPS_SYS(sys_getpeername , 3)
1653 MIPS_SYS(sys_getsockname , 3)
1654 MIPS_SYS(sys_getsockopt , 5)
1655 MIPS_SYS(sys_listen , 2)
1656 MIPS_SYS(sys_recv , 4) /* 4175 */
1657 MIPS_SYS(sys_recvfrom , 6)
1658 MIPS_SYS(sys_recvmsg , 3)
1659 MIPS_SYS(sys_send , 4)
1660 MIPS_SYS(sys_sendmsg , 3)
1661 MIPS_SYS(sys_sendto , 6) /* 4180 */
1662 MIPS_SYS(sys_setsockopt , 5)
1663 MIPS_SYS(sys_shutdown , 2)
1664 MIPS_SYS(sys_socket , 3)
1665 MIPS_SYS(sys_socketpair , 4)
1666 MIPS_SYS(sys_setresuid , 3) /* 4185 */
1667 MIPS_SYS(sys_getresuid , 3)
1668 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1669 MIPS_SYS(sys_poll , 3)
1670 MIPS_SYS(sys_nfsservctl , 3)
1671 MIPS_SYS(sys_setresgid , 3) /* 4190 */
1672 MIPS_SYS(sys_getresgid , 3)
1673 MIPS_SYS(sys_prctl , 5)
1674 MIPS_SYS(sys_rt_sigreturn, 0)
1675 MIPS_SYS(sys_rt_sigaction, 4)
1676 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1677 MIPS_SYS(sys_rt_sigpending, 2)
1678 MIPS_SYS(sys_rt_sigtimedwait, 4)
1679 MIPS_SYS(sys_rt_sigqueueinfo, 3)
1680 MIPS_SYS(sys_rt_sigsuspend, 0)
1681 MIPS_SYS(sys_pread64 , 6) /* 4200 */
1682 MIPS_SYS(sys_pwrite64 , 6)
1683 MIPS_SYS(sys_chown , 3)
1684 MIPS_SYS(sys_getcwd , 2)
1685 MIPS_SYS(sys_capget , 2)
1686 MIPS_SYS(sys_capset , 2) /* 4205 */
1687 MIPS_SYS(sys_sigaltstack , 0)
1688 MIPS_SYS(sys_sendfile , 4)
1689 MIPS_SYS(sys_ni_syscall , 0)
1690 MIPS_SYS(sys_ni_syscall , 0)
1691 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
1692 MIPS_SYS(sys_truncate64 , 4)
1693 MIPS_SYS(sys_ftruncate64 , 4)
1694 MIPS_SYS(sys_stat64 , 2)
1695 MIPS_SYS(sys_lstat64 , 2)
1696 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
1697 MIPS_SYS(sys_pivot_root , 2)
1698 MIPS_SYS(sys_mincore , 3)
1699 MIPS_SYS(sys_madvise , 3)
1700 MIPS_SYS(sys_getdents64 , 3)
1701 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
1702 MIPS_SYS(sys_ni_syscall , 0)
1703 MIPS_SYS(sys_gettid , 0)
1704 MIPS_SYS(sys_readahead , 5)
1705 MIPS_SYS(sys_setxattr , 5)
1706 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
1707 MIPS_SYS(sys_fsetxattr , 5)
1708 MIPS_SYS(sys_getxattr , 4)
1709 MIPS_SYS(sys_lgetxattr , 4)
1710 MIPS_SYS(sys_fgetxattr , 4)
1711 MIPS_SYS(sys_listxattr , 3) /* 4230 */
1712 MIPS_SYS(sys_llistxattr , 3)
1713 MIPS_SYS(sys_flistxattr , 3)
1714 MIPS_SYS(sys_removexattr , 2)
1715 MIPS_SYS(sys_lremovexattr, 2)
1716 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
1717 MIPS_SYS(sys_tkill , 2)
1718 MIPS_SYS(sys_sendfile64 , 5)
1719 MIPS_SYS(sys_futex , 2)
1720 MIPS_SYS(sys_sched_setaffinity, 3)
1721 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
1722 MIPS_SYS(sys_io_setup , 2)
1723 MIPS_SYS(sys_io_destroy , 1)
1724 MIPS_SYS(sys_io_getevents, 5)
1725 MIPS_SYS(sys_io_submit , 3)
1726 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
1727 MIPS_SYS(sys_exit_group , 1)
1728 MIPS_SYS(sys_lookup_dcookie, 3)
1729 MIPS_SYS(sys_epoll_create, 1)
1730 MIPS_SYS(sys_epoll_ctl , 4)
1731 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
1732 MIPS_SYS(sys_remap_file_pages, 5)
1733 MIPS_SYS(sys_set_tid_address, 1)
1734 MIPS_SYS(sys_restart_syscall, 0)
1735 MIPS_SYS(sys_fadvise64_64, 7)
1736 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
1737 MIPS_SYS(sys_fstatfs64 , 2)
1738 MIPS_SYS(sys_timer_create, 3)
1739 MIPS_SYS(sys_timer_settime, 4)
1740 MIPS_SYS(sys_timer_gettime, 2)
1741 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
1742 MIPS_SYS(sys_timer_delete, 1)
1743 MIPS_SYS(sys_clock_settime, 2)
1744 MIPS_SYS(sys_clock_gettime, 2)
1745 MIPS_SYS(sys_clock_getres, 2)
1746 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
1747 MIPS_SYS(sys_tgkill , 3)
1748 MIPS_SYS(sys_utimes , 2)
1749 MIPS_SYS(sys_mbind , 4)
1750 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
1751 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
1752 MIPS_SYS(sys_mq_open , 4)
1753 MIPS_SYS(sys_mq_unlink , 1)
1754 MIPS_SYS(sys_mq_timedsend, 5)
1755 MIPS_SYS(sys_mq_timedreceive, 5)
1756 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
1757 MIPS_SYS(sys_mq_getsetattr, 3)
1758 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
1759 MIPS_SYS(sys_waitid , 4)
1760 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
1761 MIPS_SYS(sys_add_key , 5)
1762 MIPS_SYS(sys_request_key, 4)
1763 MIPS_SYS(sys_keyctl , 5)
1764 MIPS_SYS(sys_set_thread_area, 1)
1765 MIPS_SYS(sys_inotify_init, 0)
1766 MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
1767 MIPS_SYS(sys_inotify_rm_watch, 2)
1768 MIPS_SYS(sys_migrate_pages, 4)
1769 MIPS_SYS(sys_openat, 4)
1770 MIPS_SYS(sys_mkdirat, 3)
1771 MIPS_SYS(sys_mknodat, 4) /* 4290 */
1772 MIPS_SYS(sys_fchownat, 5)
1773 MIPS_SYS(sys_futimesat, 3)
1774 MIPS_SYS(sys_fstatat64, 4)
1775 MIPS_SYS(sys_unlinkat, 3)
1776 MIPS_SYS(sys_renameat, 4) /* 4295 */
1777 MIPS_SYS(sys_linkat, 5)
1778 MIPS_SYS(sys_symlinkat, 3)
1779 MIPS_SYS(sys_readlinkat, 4)
1780 MIPS_SYS(sys_fchmodat, 3)
1781 MIPS_SYS(sys_faccessat, 3) /* 4300 */
1782 MIPS_SYS(sys_pselect6, 6)
1783 MIPS_SYS(sys_ppoll, 5)
1784 MIPS_SYS(sys_unshare, 1)
1785 MIPS_SYS(sys_splice, 4)
1786 MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
1787 MIPS_SYS(sys_tee, 4)
1788 MIPS_SYS(sys_vmsplice, 4)
1789 MIPS_SYS(sys_move_pages, 6)
1790 MIPS_SYS(sys_set_robust_list, 2)
1791 MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
1792 MIPS_SYS(sys_kexec_load, 4)
1793 MIPS_SYS(sys_getcpu, 3)
1794 MIPS_SYS(sys_epoll_pwait, 6)
1795 MIPS_SYS(sys_ioprio_set, 3)
1796 MIPS_SYS(sys_ioprio_get, 2)
1797 };
1798
1799 #undef MIPS_SYS
1800
1801 void cpu_loop(CPUMIPSState *env)
1802 {
1803 target_siginfo_t info;
1804 int trapnr, ret;
1805 unsigned int syscall_num;
1806
1807 for(;;) {
1808 trapnr = cpu_mips_exec(env);
1809 switch(trapnr) {
1810 case EXCP_SYSCALL:
1811 syscall_num = env->active_tc.gpr[2] - 4000;
1812 env->active_tc.PC += 4;
1813 if (syscall_num >= sizeof(mips_syscall_args)) {
1814 ret = -ENOSYS;
1815 } else {
1816 int nb_args;
1817 abi_ulong sp_reg;
1818 abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
1819
1820 nb_args = mips_syscall_args[syscall_num];
1821 sp_reg = env->active_tc.gpr[29];
1822 switch (nb_args) {
1823 /* these arguments are taken from the stack */
1824 /* FIXME - what to do if get_user() fails? */
1825 case 8: get_user_ual(arg8, sp_reg + 28);
1826 case 7: get_user_ual(arg7, sp_reg + 24);
1827 case 6: get_user_ual(arg6, sp_reg + 20);
1828 case 5: get_user_ual(arg5, sp_reg + 16);
1829 default:
1830 break;
1831 }
1832 ret = do_syscall(env, env->active_tc.gpr[2],
1833 env->active_tc.gpr[4],
1834 env->active_tc.gpr[5],
1835 env->active_tc.gpr[6],
1836 env->active_tc.gpr[7],
1837 arg5, arg6/*, arg7, arg8*/);
1838 }
1839 if ((unsigned int)ret >= (unsigned int)(-1133)) {
1840 env->active_tc.gpr[7] = 1; /* error flag */
1841 ret = -ret;
1842 } else {
1843 env->active_tc.gpr[7] = 0; /* error flag */
1844 }
1845 env->active_tc.gpr[2] = ret;
1846 break;
1847 case EXCP_TLBL:
1848 case EXCP_TLBS:
1849 case EXCP_CpU:
1850 case EXCP_RI:
1851 info.si_signo = TARGET_SIGILL;
1852 info.si_errno = 0;
1853 info.si_code = 0;
1854 queue_signal(env, info.si_signo, &info);
1855 break;
1856 case EXCP_INTERRUPT:
1857 /* just indicate that signals should be handled asap */
1858 break;
1859 case EXCP_DEBUG:
1860 {
1861 int sig;
1862
1863 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1864 if (sig)
1865 {
1866 info.si_signo = sig;
1867 info.si_errno = 0;
1868 info.si_code = TARGET_TRAP_BRKPT;
1869 queue_signal(env, info.si_signo, &info);
1870 }
1871 }
1872 break;
1873 default:
1874 // error:
1875 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1876 trapnr);
1877 cpu_dump_state(env, stderr, fprintf, 0);
1878 abort();
1879 }
1880 process_pending_signals(env);
1881 }
1882 }
1883 #endif
1884
1885 #ifdef TARGET_SH4
1886 void cpu_loop (CPUState *env)
1887 {
1888 int trapnr, ret;
1889 target_siginfo_t info;
1890
1891 while (1) {
1892 trapnr = cpu_sh4_exec (env);
1893
1894 switch (trapnr) {
1895 case 0x160:
1896 env->pc += 2;
1897 ret = do_syscall(env,
1898 env->gregs[3],
1899 env->gregs[4],
1900 env->gregs[5],
1901 env->gregs[6],
1902 env->gregs[7],
1903 env->gregs[0],
1904 env->gregs[1]);
1905 env->gregs[0] = ret;
1906 break;
1907 case EXCP_INTERRUPT:
1908 /* just indicate that signals should be handled asap */
1909 break;
1910 case EXCP_DEBUG:
1911 {
1912 int sig;
1913
1914 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1915 if (sig)
1916 {
1917 info.si_signo = sig;
1918 info.si_errno = 0;
1919 info.si_code = TARGET_TRAP_BRKPT;
1920 queue_signal(env, info.si_signo, &info);
1921 }
1922 }
1923 break;
1924 case 0xa0:
1925 case 0xc0:
1926 info.si_signo = SIGSEGV;
1927 info.si_errno = 0;
1928 info.si_code = TARGET_SEGV_MAPERR;
1929 info._sifields._sigfault._addr = env->tea;
1930 queue_signal(env, info.si_signo, &info);
1931 break;
1932
1933 default:
1934 printf ("Unhandled trap: 0x%x\n", trapnr);
1935 cpu_dump_state(env, stderr, fprintf, 0);
1936 exit (1);
1937 }
1938 process_pending_signals (env);
1939 }
1940 }
1941 #endif
1942
1943 #ifdef TARGET_CRIS
1944 void cpu_loop (CPUState *env)
1945 {
1946 int trapnr, ret;
1947 target_siginfo_t info;
1948
1949 while (1) {
1950 trapnr = cpu_cris_exec (env);
1951 switch (trapnr) {
1952 case 0xaa:
1953 {
1954 info.si_signo = SIGSEGV;
1955 info.si_errno = 0;
1956 /* XXX: check env->error_code */
1957 info.si_code = TARGET_SEGV_MAPERR;
1958 info._sifields._sigfault._addr = env->pregs[PR_EDA];
1959 queue_signal(env, info.si_signo, &info);
1960 }
1961 break;
1962 case EXCP_INTERRUPT:
1963 /* just indicate that signals should be handled asap */
1964 break;
1965 case EXCP_BREAK:
1966 ret = do_syscall(env,
1967 env->regs[9],
1968 env->regs[10],
1969 env->regs[11],
1970 env->regs[12],
1971 env->regs[13],
1972 env->pregs[7],
1973 env->pregs[11]);
1974 env->regs[10] = ret;
1975 break;
1976 case EXCP_DEBUG:
1977 {
1978 int sig;
1979
1980 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1981 if (sig)
1982 {
1983 info.si_signo = sig;
1984 info.si_errno = 0;
1985 info.si_code = TARGET_TRAP_BRKPT;
1986 queue_signal(env, info.si_signo, &info);
1987 }
1988 }
1989 break;
1990 default:
1991 printf ("Unhandled trap: 0x%x\n", trapnr);
1992 cpu_dump_state(env, stderr, fprintf, 0);
1993 exit (1);
1994 }
1995 process_pending_signals (env);
1996 }
1997 }
1998 #endif
1999
2000 #ifdef TARGET_M68K
2001
2002 void cpu_loop(CPUM68KState *env)
2003 {
2004 int trapnr;
2005 unsigned int n;
2006 target_siginfo_t info;
2007 TaskState *ts = env->opaque;
2008
2009 for(;;) {
2010 trapnr = cpu_m68k_exec(env);
2011 switch(trapnr) {
2012 case EXCP_ILLEGAL:
2013 {
2014 if (ts->sim_syscalls) {
2015 uint16_t nr;
2016 nr = lduw(env->pc + 2);
2017 env->pc += 4;
2018 do_m68k_simcall(env, nr);
2019 } else {
2020 goto do_sigill;
2021 }
2022 }
2023 break;
2024 case EXCP_HALT_INSN:
2025 /* Semihosing syscall. */
2026 env->pc += 4;
2027 do_m68k_semihosting(env, env->dregs[0]);
2028 break;
2029 case EXCP_LINEA:
2030 case EXCP_LINEF:
2031 case EXCP_UNSUPPORTED:
2032 do_sigill:
2033 info.si_signo = SIGILL;
2034 info.si_errno = 0;
2035 info.si_code = TARGET_ILL_ILLOPN;
2036 info._sifields._sigfault._addr = env->pc;
2037 queue_signal(env, info.si_signo, &info);
2038 break;
2039 case EXCP_TRAP0:
2040 {
2041 ts->sim_syscalls = 0;
2042 n = env->dregs[0];
2043 env->pc += 2;
2044 env->dregs[0] = do_syscall(env,
2045 n,
2046 env->dregs[1],
2047 env->dregs[2],
2048 env->dregs[3],
2049 env->dregs[4],
2050 env->dregs[5],
2051 env->aregs[0]);
2052 }
2053 break;
2054 case EXCP_INTERRUPT:
2055 /* just indicate that signals should be handled asap */
2056 break;
2057 case EXCP_ACCESS:
2058 {
2059 info.si_signo = SIGSEGV;
2060 info.si_errno = 0;
2061 /* XXX: check env->error_code */
2062 info.si_code = TARGET_SEGV_MAPERR;
2063 info._sifields._sigfault._addr = env->mmu.ar;
2064 queue_signal(env, info.si_signo, &info);
2065 }
2066 break;
2067 case EXCP_DEBUG:
2068 {
2069 int sig;
2070
2071 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2072 if (sig)
2073 {
2074 info.si_signo = sig;
2075 info.si_errno = 0;
2076 info.si_code = TARGET_TRAP_BRKPT;
2077 queue_signal(env, info.si_signo, &info);
2078 }
2079 }
2080 break;
2081 default:
2082 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
2083 trapnr);
2084 cpu_dump_state(env, stderr, fprintf, 0);
2085 abort();
2086 }
2087 process_pending_signals(env);
2088 }
2089 }
2090 #endif /* TARGET_M68K */
2091
2092 #ifdef TARGET_ALPHA
2093 void cpu_loop (CPUState *env)
2094 {
2095 int trapnr;
2096 target_siginfo_t info;
2097
2098 while (1) {
2099 trapnr = cpu_alpha_exec (env);
2100
2101 switch (trapnr) {
2102 case EXCP_RESET:
2103 fprintf(stderr, "Reset requested. Exit\n");
2104 exit(1);
2105 break;
2106 case EXCP_MCHK:
2107 fprintf(stderr, "Machine check exception. Exit\n");
2108 exit(1);
2109 break;
2110 case EXCP_ARITH:
2111 fprintf(stderr, "Arithmetic trap.\n");
2112 exit(1);
2113 break;
2114 case EXCP_HW_INTERRUPT:
2115 fprintf(stderr, "External interrupt. Exit\n");
2116 exit(1);
2117 break;
2118 case EXCP_DFAULT:
2119 fprintf(stderr, "MMU data fault\n");
2120 exit(1);
2121 break;
2122 case EXCP_DTB_MISS_PAL:
2123 fprintf(stderr, "MMU data TLB miss in PALcode\n");
2124 exit(1);
2125 break;
2126 case EXCP_ITB_MISS:
2127 fprintf(stderr, "MMU instruction TLB miss\n");
2128 exit(1);
2129 break;
2130 case EXCP_ITB_ACV:
2131 fprintf(stderr, "MMU instruction access violation\n");
2132 exit(1);
2133 break;
2134 case EXCP_DTB_MISS_NATIVE:
2135 fprintf(stderr, "MMU data TLB miss\n");
2136 exit(1);
2137 break;
2138 case EXCP_UNALIGN:
2139 fprintf(stderr, "Unaligned access\n");
2140 exit(1);
2141 break;
2142 case EXCP_OPCDEC:
2143 fprintf(stderr, "Invalid instruction\n");
2144 exit(1);
2145 break;
2146 case EXCP_FEN:
2147 fprintf(stderr, "Floating-point not allowed\n");
2148 exit(1);
2149 break;
2150 case EXCP_CALL_PAL ... (EXCP_CALL_PALP - 1):
2151 call_pal(env, (trapnr >> 6) | 0x80);
2152 break;
2153 case EXCP_CALL_PALP ... (EXCP_CALL_PALE - 1):
2154 fprintf(stderr, "Privileged call to PALcode\n");
2155 exit(1);
2156 break;
2157 case EXCP_DEBUG:
2158 {
2159 int sig;
2160
2161 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2162 if (sig)
2163 {
2164 info.si_signo = sig;
2165 info.si_errno = 0;
2166 info.si_code = TARGET_TRAP_BRKPT;
2167 queue_signal(env, info.si_signo, &info);
2168 }
2169 }
2170 break;
2171 default:
2172 printf ("Unhandled trap: 0x%x\n", trapnr);
2173 cpu_dump_state(env, stderr, fprintf, 0);
2174 exit (1);
2175 }
2176 process_pending_signals (env);
2177 }
2178 }
2179 #endif /* TARGET_ALPHA */
2180
2181 static void usage(void)
2182 {
2183 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n"
2184 "usage: qemu-" TARGET_ARCH " [options] program [arguments...]\n"
2185 "Linux CPU emulator (compiled for %s emulation)\n"
2186 "\n"
2187 "Standard options:\n"
2188 "-h print this help\n"
2189 "-g port wait gdb connection to port\n"
2190 "-L path set the elf interpreter prefix (default=%s)\n"
2191 "-s size set the stack size in bytes (default=%ld)\n"
2192 "-cpu model select CPU (-cpu ? for list)\n"
2193 "-drop-ld-preload drop LD_PRELOAD for target process\n"
2194 "-E var=value sets/modifies targets environment variable(s)\n"
2195 "-U var unsets targets environment variable(s)\n"
2196 "\n"
2197 "Debug options:\n"
2198 "-d options activate log (logfile=%s)\n"
2199 "-p pagesize set the host page size to 'pagesize'\n"
2200 "-strace log system calls\n"
2201 "\n"
2202 "Environment variables:\n"
2203 "QEMU_STRACE Print system calls and arguments similar to the\n"
2204 " 'strace' program. Enable by setting to any value.\n"
2205 "You can use -E and -U options to set/unset environment variables\n"
2206 "for target process. It is possible to provide several variables\n"
2207 "by repeating the option. For example:\n"
2208 " -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n"
2209 "Note that if you provide several changes to single variable\n"
2210 "last change will stay in effect.\n"
2211 ,
2212 TARGET_ARCH,
2213 interp_prefix,
2214 x86_stack_size,
2215 DEBUG_LOGFILE);
2216 _exit(1);
2217 }
2218
2219 THREAD CPUState *thread_env;
2220
2221 /* Assumes contents are already zeroed. */
2222 void init_task_state(TaskState *ts)
2223 {
2224 int i;
2225
2226 ts->used = 1;
2227 ts->first_free = ts->sigqueue_table;
2228 for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) {
2229 ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1];
2230 }
2231 ts->sigqueue_table[i].next = NULL;
2232 }
2233
2234 int main(int argc, char **argv, char **envp)
2235 {
2236 const char *filename;
2237 const char *cpu_model;
2238 struct target_pt_regs regs1, *regs = &regs1;
2239 struct image_info info1, *info = &info1;
2240 TaskState ts1, *ts = &ts1;
2241 CPUState *env;
2242 int optind;
2243 const char *r;
2244 int gdbstub_port = 0;
2245 char **target_environ, **wrk;
2246 envlist_t *envlist = NULL;
2247
2248 if (argc <= 1)
2249 usage();
2250
2251 qemu_cache_utils_init(envp);
2252
2253 /* init debug */
2254 cpu_set_log_filename(DEBUG_LOGFILE);
2255
2256 if ((envlist = envlist_create()) == NULL) {
2257 (void) fprintf(stderr, "Unable to allocate envlist\n");
2258 exit(1);
2259 }
2260
2261 /* add current environment into the list */
2262 for (wrk = environ; *wrk != NULL; wrk++) {
2263 (void) envlist_setenv(envlist, *wrk);
2264 }
2265
2266 cpu_model = NULL;
2267 optind = 1;
2268 for(;;) {
2269 if (optind >= argc)
2270 break;
2271 r = argv[optind];
2272 if (r[0] != '-')
2273 break;
2274 optind++;
2275 r++;
2276 if (!strcmp(r, "-")) {
2277 break;
2278 } else if (!strcmp(r, "d")) {
2279 int mask;
2280 const CPULogItem *item;
2281
2282 if (optind >= argc)
2283 break;
2284
2285 r = argv[optind++];
2286 mask = cpu_str_to_log_mask(r);
2287 if (!mask) {
2288 printf("Log items (comma separated):\n");
2289 for(item = cpu_log_items; item->mask != 0; item++) {
2290 printf("%-10s %s\n", item->name, item->help);
2291 }
2292 exit(1);
2293 }
2294 cpu_set_log(mask);
2295 } else if (!strcmp(r, "E")) {
2296 r = argv[optind++];
2297 if (envlist_setenv(envlist, r) != 0)
2298 usage();
2299 } else if (!strcmp(r, "U")) {
2300 r = argv[optind++];
2301 if (envlist_unsetenv(envlist, r) != 0)
2302 usage();
2303 } else if (!strcmp(r, "s")) {
2304 r = argv[optind++];
2305 x86_stack_size = strtol(r, (char **)&r, 0);
2306 if (x86_stack_size <= 0)
2307 usage();
2308 if (*r == 'M')
2309 x86_stack_size *= 1024 * 1024;
2310 else if (*r == 'k' || *r == 'K')
2311 x86_stack_size *= 1024;
2312 } else if (!strcmp(r, "L")) {
2313 interp_prefix = argv[optind++];
2314 } else if (!strcmp(r, "p")) {
2315 qemu_host_page_size = atoi(argv[optind++]);
2316 if (qemu_host_page_size == 0 ||
2317 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
2318 fprintf(stderr, "page size must be a power of two\n");
2319 exit(1);
2320 }
2321 } else if (!strcmp(r, "g")) {
2322 gdbstub_port = atoi(argv[optind++]);
2323 } else if (!strcmp(r, "r")) {
2324 qemu_uname_release = argv[optind++];
2325 } else if (!strcmp(r, "cpu")) {
2326 cpu_model = argv[optind++];
2327 if (strcmp(cpu_model, "?") == 0) {
2328 /* XXX: implement xxx_cpu_list for targets that still miss it */
2329 #if defined(cpu_list)
2330 cpu_list(stdout, &fprintf);
2331 #endif
2332 _exit(1);
2333 }
2334 } else if (!strcmp(r, "drop-ld-preload")) {
2335 (void) envlist_unsetenv(envlist, "LD_PRELOAD");
2336 } else if (!strcmp(r, "strace")) {
2337 do_strace = 1;
2338 } else
2339 {
2340 usage();
2341 }
2342 }
2343 if (optind >= argc)
2344 usage();
2345 filename = argv[optind];
2346 exec_path = argv[optind];
2347
2348 /* Zero out regs */
2349 memset(regs, 0, sizeof(struct target_pt_regs));
2350
2351 /* Zero out image_info */
2352 memset(info, 0, sizeof(struct image_info));
2353
2354 /* Scan interp_prefix dir for replacement files. */
2355 init_paths(interp_prefix);
2356
2357 if (cpu_model == NULL) {
2358 #if defined(TARGET_I386)
2359 #ifdef TARGET_X86_64
2360 cpu_model = "qemu64";
2361 #else
2362 cpu_model = "qemu32";
2363 #endif
2364 #elif defined(TARGET_ARM)
2365 cpu_model = "arm926";
2366 #elif defined(TARGET_M68K)
2367 cpu_model = "any";
2368 #elif defined(TARGET_SPARC)
2369 #ifdef TARGET_SPARC64
2370 cpu_model = "TI UltraSparc II";
2371 #else
2372 cpu_model = "Fujitsu MB86904";
2373 #endif
2374 #elif defined(TARGET_MIPS)
2375 #if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64)
2376 cpu_model = "20Kc";
2377 #else
2378 cpu_model = "24Kf";
2379 #endif
2380 #elif defined(TARGET_PPC)
2381 #ifdef TARGET_PPC64
2382 cpu_model = "970";
2383 #else
2384 cpu_model = "750";
2385 #endif
2386 #else
2387 cpu_model = "any";
2388 #endif
2389 }
2390 cpu_exec_init_all(0);
2391 /* NOTE: we need to init the CPU at this stage to get
2392 qemu_host_page_size */
2393 env = cpu_init(cpu_model);
2394 if (!env) {
2395 fprintf(stderr, "Unable to find CPU definition\n");
2396 exit(1);
2397 }
2398 thread_env = env;
2399
2400 if (getenv("QEMU_STRACE")) {
2401 do_strace = 1;
2402 }
2403
2404 target_environ = envlist_to_environ(envlist, NULL);
2405 envlist_free(envlist);
2406
2407 if (loader_exec(filename, argv+optind, target_environ, regs, info) != 0) {
2408 printf("Error loading %s\n", filename);
2409 _exit(1);
2410 }
2411
2412 for (wrk = target_environ; *wrk; wrk++) {
2413 free(*wrk);
2414 }
2415
2416 free(target_environ);
2417
2418 if (qemu_log_enabled()) {
2419 log_page_dump();
2420
2421 qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk);
2422 qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code);
2423 qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n",
2424 info->start_code);
2425 qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n",
2426 info->start_data);
2427 qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data);
2428 qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n",
2429 info->start_stack);
2430 qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk);
2431 qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry);
2432 }
2433
2434 target_set_brk(info->brk);
2435 syscall_init();
2436 signal_init();
2437
2438 /* build Task State */
2439 memset(ts, 0, sizeof(TaskState));
2440 init_task_state(ts);
2441 ts->info = info;
2442 env->opaque = ts;
2443
2444 #if defined(TARGET_I386)
2445 cpu_x86_set_cpl(env, 3);
2446
2447 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
2448 env->hflags |= HF_PE_MASK;
2449 if (env->cpuid_features & CPUID_SSE) {
2450 env->cr[4] |= CR4_OSFXSR_MASK;
2451 env->hflags |= HF_OSFXSR_MASK;
2452 }
2453 #ifndef TARGET_ABI32
2454 /* enable 64 bit mode if possible */
2455 if (!(env->cpuid_ext2_features & CPUID_EXT2_LM)) {
2456 fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n");
2457 exit(1);
2458 }
2459 env->cr[4] |= CR4_PAE_MASK;
2460 env->efer |= MSR_EFER_LMA | MSR_EFER_LME;
2461 env->hflags |= HF_LMA_MASK;
2462 #endif
2463
2464 /* flags setup : we activate the IRQs by default as in user mode */
2465 env->eflags |= IF_MASK;
2466
2467 /* linux register setup */
2468 #ifndef TARGET_ABI32
2469 env->regs[R_EAX] = regs->rax;
2470 env->regs[R_EBX] = regs->rbx;
2471 env->regs[R_ECX] = regs->rcx;
2472 env->regs[R_EDX] = regs->rdx;
2473 env->regs[R_ESI] = regs->rsi;
2474 env->regs[R_EDI] = regs->rdi;
2475 env->regs[R_EBP] = regs->rbp;
2476 env->regs[R_ESP] = regs->rsp;
2477 env->eip = regs->rip;
2478 #else
2479 env->regs[R_EAX] = regs->eax;
2480 env->regs[R_EBX] = regs->ebx;
2481 env->regs[R_ECX] = regs->ecx;
2482 env->regs[R_EDX] = regs->edx;
2483 env->regs[R_ESI] = regs->esi;
2484 env->regs[R_EDI] = regs->edi;
2485 env->regs[R_EBP] = regs->ebp;
2486 env->regs[R_ESP] = regs->esp;
2487 env->eip = regs->eip;
2488 #endif
2489
2490 /* linux interrupt setup */
2491 #ifndef TARGET_ABI32
2492 env->idt.limit = 511;
2493 #else
2494 env->idt.limit = 255;
2495 #endif
2496 env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1),
2497 PROT_READ|PROT_WRITE,
2498 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
2499 idt_table = g2h(env->idt.base);
2500 set_idt(0, 0);
2501 set_idt(1, 0);
2502 set_idt(2, 0);
2503 set_idt(3, 3);
2504 set_idt(4, 3);
2505 set_idt(5, 0);
2506 set_idt(6, 0);
2507 set_idt(7, 0);
2508 set_idt(8, 0);
2509 set_idt(9, 0);
2510 set_idt(10, 0);
2511 set_idt(11, 0);
2512 set_idt(12, 0);
2513 set_idt(13, 0);
2514 set_idt(14, 0);
2515 set_idt(15, 0);
2516 set_idt(16, 0);
2517 set_idt(17, 0);
2518 set_idt(18, 0);
2519 set_idt(19, 0);
2520 set_idt(0x80, 3);
2521
2522 /* linux segment setup */
2523 {
2524 uint64_t *gdt_table;
2525 env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES,
2526 PROT_READ|PROT_WRITE,
2527 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
2528 env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1;
2529 gdt_table = g2h(env->gdt.base);
2530 #ifdef TARGET_ABI32
2531 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
2532 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
2533 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
2534 #else
2535 /* 64 bit code segment */
2536 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
2537 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
2538 DESC_L_MASK |
2539 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
2540 #endif
2541 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
2542 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
2543 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
2544 }
2545 cpu_x86_load_seg(env, R_CS, __USER_CS);
2546 cpu_x86_load_seg(env, R_SS, __USER_DS);
2547 #ifdef TARGET_ABI32
2548 cpu_x86_load_seg(env, R_DS, __USER_DS);
2549 cpu_x86_load_seg(env, R_ES, __USER_DS);
2550 cpu_x86_load_seg(env, R_FS, __USER_DS);
2551 cpu_x86_load_seg(env, R_GS, __USER_DS);
2552 /* This hack makes Wine work... */
2553 env->segs[R_FS].selector = 0;
2554 #else
2555 cpu_x86_load_seg(env, R_DS, 0);
2556 cpu_x86_load_seg(env, R_ES, 0);
2557 cpu_x86_load_seg(env, R_FS, 0);
2558 cpu_x86_load_seg(env, R_GS, 0);
2559 #endif
2560 #elif defined(TARGET_ARM)
2561 {
2562 int i;
2563 cpsr_write(env, regs->uregs[16], 0xffffffff);
2564 for(i = 0; i < 16; i++) {
2565 env->regs[i] = regs->uregs[i];
2566 }
2567 }
2568 #elif defined(TARGET_SPARC)
2569 {
2570 int i;
2571 env->pc = regs->pc;
2572 env->npc = regs->npc;
2573 env->y = regs->y;
2574 for(i = 0; i < 8; i++)
2575 env->gregs[i] = regs->u_regs[i];
2576 for(i = 0; i < 8; i++)
2577 env->regwptr[i] = regs->u_regs[i + 8];
2578 }
2579 #elif defined(TARGET_PPC)
2580 {
2581 int i;
2582
2583 #if defined(TARGET_PPC64)
2584 #if defined(TARGET_ABI32)
2585 env->msr &= ~((target_ulong)1 << MSR_SF);
2586 #else
2587 env->msr |= (target_ulong)1 << MSR_SF;
2588 #endif
2589 #endif
2590 env->nip = regs->nip;
2591 for(i = 0; i < 32; i++) {
2592 env->gpr[i] = regs->gpr[i];
2593 }
2594 }
2595 #elif defined(TARGET_M68K)
2596 {
2597 env->pc = regs->pc;
2598 env->dregs[0] = regs->d0;
2599 env->dregs[1] = regs->d1;
2600 env->dregs[2] = regs->d2;
2601 env->dregs[3] = regs->d3;
2602 env->dregs[4] = regs->d4;
2603 env->dregs[5] = regs->d5;
2604 env->dregs[6] = regs->d6;
2605 env->dregs[7] = regs->d7;
2606 env->aregs[0] = regs->a0;
2607 env->aregs[1] = regs->a1;
2608 env->aregs[2] = regs->a2;
2609 env->aregs[3] = regs->a3;
2610 env->aregs[4] = regs->a4;
2611 env->aregs[5] = regs->a5;
2612 env->aregs[6] = regs->a6;
2613 env->aregs[7] = regs->usp;
2614 env->sr = regs->sr;
2615 ts->sim_syscalls = 1;
2616 }
2617 #elif defined(TARGET_MIPS)
2618 {
2619 int i;
2620
2621 for(i = 0; i < 32; i++) {
2622 env->active_tc.gpr[i] = regs->regs[i];
2623 }
2624 env->active_tc.PC = regs->cp0_epc;
2625 }
2626 #elif defined(TARGET_SH4)
2627 {
2628 int i;
2629
2630 for(i = 0; i < 16; i++) {
2631 env->gregs[i] = regs->regs[i];
2632 }
2633 env->pc = regs->pc;
2634 }
2635 #elif defined(TARGET_ALPHA)
2636 {
2637 int i;
2638
2639 for(i = 0; i < 28; i++) {
2640 env->ir[i] = ((abi_ulong *)regs)[i];
2641 }
2642 env->ipr[IPR_USP] = regs->usp;
2643 env->ir[30] = regs->usp;
2644 env->pc = regs->pc;
2645 env->unique = regs->unique;
2646 }
2647 #elif defined(TARGET_CRIS)
2648 {
2649 env->regs[0] = regs->r0;
2650 env->regs[1] = regs->r1;
2651 env->regs[2] = regs->r2;
2652 env->regs[3] = regs->r3;
2653 env->regs[4] = regs->r4;
2654 env->regs[5] = regs->r5;
2655 env->regs[6] = regs->r6;
2656 env->regs[7] = regs->r7;
2657 env->regs[8] = regs->r8;
2658 env->regs[9] = regs->r9;
2659 env->regs[10] = regs->r10;
2660 env->regs[11] = regs->r11;
2661 env->regs[12] = regs->r12;
2662 env->regs[13] = regs->r13;
2663 env->regs[14] = info->start_stack;
2664 env->regs[15] = regs->acr;
2665 env->pc = regs->erp;
2666 }
2667 #else
2668 #error unsupported target CPU
2669 #endif
2670
2671 #if defined(TARGET_ARM) || defined(TARGET_M68K)
2672 ts->stack_base = info->start_stack;
2673 ts->heap_base = info->brk;
2674 /* This will be filled in on the first SYS_HEAPINFO call. */
2675 ts->heap_limit = 0;
2676 #endif
2677
2678 if (gdbstub_port) {
2679 gdbserver_start (gdbstub_port);
2680 gdb_handlesig(env, 0);
2681 }
2682 cpu_loop(env);
2683 /* never exits */
2684 return 0;
2685 }
Samsung s3c2440 and arm920t support for the mini2440 dev board