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Code provision for x86_64 and PowerPC 64 linux user mode support.
[qemu/mini2440.git] / linux-user / main.c
blob74798c7cc5d05daba9b8c5e0e4cb93309c89d444
1 /*
2 * qemu user main
3 *
4 * Copyright (c) 2003 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., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20 #include <stdlib.h>
21 #include <stdio.h>
22 #include <stdarg.h>
23 #include <string.h>
24 #include <errno.h>
25 #include <unistd.h>
26
27 #include "qemu.h"
28
29 #define DEBUG_LOGFILE "/tmp/qemu.log"
30
31 #ifdef __APPLE__
32 #include <crt_externs.h>
33 # define environ (*_NSGetEnviron())
34 #endif
35
36 static const char *interp_prefix = CONFIG_QEMU_PREFIX;
37 const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
38
39 #if defined(__i386__) && !defined(CONFIG_STATIC)
40 /* Force usage of an ELF interpreter even if it is an ELF shared
41 object ! */
42 const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2";
43 #endif
44
45 /* for recent libc, we add these dummy symbols which are not declared
46 when generating a linked object (bug in ld ?) */
47 #if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined(CONFIG_STATIC)
48 long __preinit_array_start[0];
49 long __preinit_array_end[0];
50 long __init_array_start[0];
51 long __init_array_end[0];
52 long __fini_array_start[0];
53 long __fini_array_end[0];
54 #endif
55
56 /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
57 we allocate a bigger stack. Need a better solution, for example
58 by remapping the process stack directly at the right place */
59 unsigned long x86_stack_size = 512 * 1024;
60
61 void gemu_log(const char *fmt, ...)
62 {
63 va_list ap;
64
65 va_start(ap, fmt);
66 vfprintf(stderr, fmt, ap);
67 va_end(ap);
68 }
69
70 void cpu_outb(CPUState *env, int addr, int val)
71 {
72 fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val);
73 }
74
75 void cpu_outw(CPUState *env, int addr, int val)
76 {
77 fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val);
78 }
79
80 void cpu_outl(CPUState *env, int addr, int val)
81 {
82 fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val);
83 }
84
85 int cpu_inb(CPUState *env, int addr)
86 {
87 fprintf(stderr, "inb: port=0x%04x\n", addr);
88 return 0;
89 }
90
91 int cpu_inw(CPUState *env, int addr)
92 {
93 fprintf(stderr, "inw: port=0x%04x\n", addr);
94 return 0;
95 }
96
97 int cpu_inl(CPUState *env, int addr)
98 {
99 fprintf(stderr, "inl: port=0x%04x\n", addr);
100 return 0;
101 }
102
103 int cpu_get_pic_interrupt(CPUState *env)
104 {
105 return -1;
106 }
107
108 /* timers for rdtsc */
109
110 #if 0
111
112 static uint64_t emu_time;
113
114 int64_t cpu_get_real_ticks(void)
115 {
116 return emu_time++;
117 }
118
119 #endif
120
121 #ifdef TARGET_I386
122 /***********************************************************/
123 /* CPUX86 core interface */
124
125 void cpu_smm_update(CPUState *env)
126 {
127 }
128
129 uint64_t cpu_get_tsc(CPUX86State *env)
130 {
131 return cpu_get_real_ticks();
132 }
133
134 static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
135 int flags)
136 {
137 unsigned int e1, e2;
138 uint32_t *p;
139 e1 = (addr << 16) | (limit & 0xffff);
140 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
141 e2 |= flags;
142 p = ptr;
143 p[0] = tswapl(e1);
144 p[1] = tswapl(e2);
145 }
146
147 static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
148 unsigned long addr, unsigned int sel)
149 {
150 unsigned int e1, e2;
151 uint32_t *p;
152 e1 = (addr & 0xffff) | (sel << 16);
153 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
154 p = ptr;
155 p[0] = tswapl(e1);
156 p[1] = tswapl(e2);
157 }
158
159 uint64_t gdt_table[6];
160 uint64_t idt_table[256];
161
162 /* only dpl matters as we do only user space emulation */
163 static void set_idt(int n, unsigned int dpl)
164 {
165 set_gate(idt_table + n, 0, dpl, 0, 0);
166 }
167
168 void cpu_loop(CPUX86State *env)
169 {
170 int trapnr;
171 target_ulong pc;
172 target_siginfo_t info;
173
174 for(;;) {
175 trapnr = cpu_x86_exec(env);
176 switch(trapnr) {
177 case 0x80:
178 /* linux syscall */
179 env->regs[R_EAX] = do_syscall(env,
180 env->regs[R_EAX],
181 env->regs[R_EBX],
182 env->regs[R_ECX],
183 env->regs[R_EDX],
184 env->regs[R_ESI],
185 env->regs[R_EDI],
186 env->regs[R_EBP]);
187 break;
188 case EXCP0B_NOSEG:
189 case EXCP0C_STACK:
190 info.si_signo = SIGBUS;
191 info.si_errno = 0;
192 info.si_code = TARGET_SI_KERNEL;
193 info._sifields._sigfault._addr = 0;
194 queue_signal(info.si_signo, &info);
195 break;
196 case EXCP0D_GPF:
197 #ifndef TARGET_X86_64
198 if (env->eflags & VM_MASK) {
199 handle_vm86_fault(env);
200 } else
201 #endif
202 {
203 info.si_signo = SIGSEGV;
204 info.si_errno = 0;
205 info.si_code = TARGET_SI_KERNEL;
206 info._sifields._sigfault._addr = 0;
207 queue_signal(info.si_signo, &info);
208 }
209 break;
210 case EXCP0E_PAGE:
211 info.si_signo = SIGSEGV;
212 info.si_errno = 0;
213 if (!(env->error_code & 1))
214 info.si_code = TARGET_SEGV_MAPERR;
215 else
216 info.si_code = TARGET_SEGV_ACCERR;
217 info._sifields._sigfault._addr = env->cr[2];
218 queue_signal(info.si_signo, &info);
219 break;
220 case EXCP00_DIVZ:
221 #ifndef TARGET_X86_64
222 if (env->eflags & VM_MASK) {
223 handle_vm86_trap(env, trapnr);
224 } else
225 #endif
226 {
227 /* division by zero */
228 info.si_signo = SIGFPE;
229 info.si_errno = 0;
230 info.si_code = TARGET_FPE_INTDIV;
231 info._sifields._sigfault._addr = env->eip;
232 queue_signal(info.si_signo, &info);
233 }
234 break;
235 case EXCP01_SSTP:
236 case EXCP03_INT3:
237 #ifndef TARGET_X86_64
238 if (env->eflags & VM_MASK) {
239 handle_vm86_trap(env, trapnr);
240 } else
241 #endif
242 {
243 info.si_signo = SIGTRAP;
244 info.si_errno = 0;
245 if (trapnr == EXCP01_SSTP) {
246 info.si_code = TARGET_TRAP_BRKPT;
247 info._sifields._sigfault._addr = env->eip;
248 } else {
249 info.si_code = TARGET_SI_KERNEL;
250 info._sifields._sigfault._addr = 0;
251 }
252 queue_signal(info.si_signo, &info);
253 }
254 break;
255 case EXCP04_INTO:
256 case EXCP05_BOUND:
257 #ifndef TARGET_X86_64
258 if (env->eflags & VM_MASK) {
259 handle_vm86_trap(env, trapnr);
260 } else
261 #endif
262 {
263 info.si_signo = SIGSEGV;
264 info.si_errno = 0;
265 info.si_code = TARGET_SI_KERNEL;
266 info._sifields._sigfault._addr = 0;
267 queue_signal(info.si_signo, &info);
268 }
269 break;
270 case EXCP06_ILLOP:
271 info.si_signo = SIGILL;
272 info.si_errno = 0;
273 info.si_code = TARGET_ILL_ILLOPN;
274 info._sifields._sigfault._addr = env->eip;
275 queue_signal(info.si_signo, &info);
276 break;
277 case EXCP_INTERRUPT:
278 /* just indicate that signals should be handled asap */
279 break;
280 case EXCP_DEBUG:
281 {
282 int sig;
283
284 sig = gdb_handlesig (env, TARGET_SIGTRAP);
285 if (sig)
286 {
287 info.si_signo = sig;
288 info.si_errno = 0;
289 info.si_code = TARGET_TRAP_BRKPT;
290 queue_signal(info.si_signo, &info);
291 }
292 }
293 break;
294 default:
295 pc = env->segs[R_CS].base + env->eip;
296 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
297 (long)pc, trapnr);
298 abort();
299 }
300 process_pending_signals(env);
301 }
302 }
303 #endif
304
305 #ifdef TARGET_ARM
306
307 /* XXX: find a better solution */
308 extern void tb_invalidate_page_range(target_ulong start, target_ulong end);
309
310 static void arm_cache_flush(target_ulong start, target_ulong last)
311 {
312 target_ulong addr, last1;
313
314 if (last < start)
315 return;
316 addr = start;
317 for(;;) {
318 last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
319 if (last1 > last)
320 last1 = last;
321 tb_invalidate_page_range(addr, last1 + 1);
322 if (last1 == last)
323 break;
324 addr = last1 + 1;
325 }
326 }
327
328 void cpu_loop(CPUARMState *env)
329 {
330 int trapnr;
331 unsigned int n, insn;
332 target_siginfo_t info;
333 uint32_t addr;
334
335 for(;;) {
336 trapnr = cpu_arm_exec(env);
337 switch(trapnr) {
338 case EXCP_UDEF:
339 {
340 TaskState *ts = env->opaque;
341 uint32_t opcode;
342
343 /* we handle the FPU emulation here, as Linux */
344 /* we get the opcode */
345 opcode = tget32(env->regs[15]);
346
347 if (EmulateAll(opcode, &ts->fpa, env) == 0) {
348 info.si_signo = SIGILL;
349 info.si_errno = 0;
350 info.si_code = TARGET_ILL_ILLOPN;
351 info._sifields._sigfault._addr = env->regs[15];
352 queue_signal(info.si_signo, &info);
353 } else {
354 /* increment PC */
355 env->regs[15] += 4;
356 }
357 }
358 break;
359 case EXCP_SWI:
360 case EXCP_BKPT:
361 {
362 env->eabi = 1;
363 /* system call */
364 if (trapnr == EXCP_BKPT) {
365 if (env->thumb) {
366 insn = tget16(env->regs[15]);
367 n = insn & 0xff;
368 env->regs[15] += 2;
369 } else {
370 insn = tget32(env->regs[15]);
371 n = (insn & 0xf) | ((insn >> 4) & 0xff0);
372 env->regs[15] += 4;
373 }
374 } else {
375 if (env->thumb) {
376 insn = tget16(env->regs[15] - 2);
377 n = insn & 0xff;
378 } else {
379 insn = tget32(env->regs[15] - 4);
380 n = insn & 0xffffff;
381 }
382 }
383
384 if (n == ARM_NR_cacheflush) {
385 arm_cache_flush(env->regs[0], env->regs[1]);
386 } else if (n == ARM_NR_semihosting
387 || n == ARM_NR_thumb_semihosting) {
388 env->regs[0] = do_arm_semihosting (env);
389 } else if (n == 0 || n >= ARM_SYSCALL_BASE
390 || (env->thumb && n == ARM_THUMB_SYSCALL)) {
391 /* linux syscall */
392 if (env->thumb || n == 0) {
393 n = env->regs[7];
394 } else {
395 n -= ARM_SYSCALL_BASE;
396 env->eabi = 0;
397 }
398 env->regs[0] = do_syscall(env,
399 n,
400 env->regs[0],
401 env->regs[1],
402 env->regs[2],
403 env->regs[3],
404 env->regs[4],
405 env->regs[5]);
406 } else {
407 goto error;
408 }
409 }
410 break;
411 case EXCP_INTERRUPT:
412 /* just indicate that signals should be handled asap */
413 break;
414 case EXCP_PREFETCH_ABORT:
415 addr = env->cp15.c6_data;
416 goto do_segv;
417 case EXCP_DATA_ABORT:
418 addr = env->cp15.c6_insn;
419 goto do_segv;
420 do_segv:
421 {
422 info.si_signo = SIGSEGV;
423 info.si_errno = 0;
424 /* XXX: check env->error_code */
425 info.si_code = TARGET_SEGV_MAPERR;
426 info._sifields._sigfault._addr = addr;
427 queue_signal(info.si_signo, &info);
428 }
429 break;
430 case EXCP_DEBUG:
431 {
432 int sig;
433
434 sig = gdb_handlesig (env, TARGET_SIGTRAP);
435 if (sig)
436 {
437 info.si_signo = sig;
438 info.si_errno = 0;
439 info.si_code = TARGET_TRAP_BRKPT;
440 queue_signal(info.si_signo, &info);
441 }
442 }
443 break;
444 default:
445 error:
446 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
447 trapnr);
448 cpu_dump_state(env, stderr, fprintf, 0);
449 abort();
450 }
451 process_pending_signals(env);
452 }
453 }
454
455 #endif
456
457 #ifdef TARGET_SPARC
458
459 //#define DEBUG_WIN
460
461 /* WARNING: dealing with register windows _is_ complicated. More info
462 can be found at http://www.sics.se/~psm/sparcstack.html */
463 static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
464 {
465 index = (index + cwp * 16) & (16 * NWINDOWS - 1);
466 /* wrap handling : if cwp is on the last window, then we use the
467 registers 'after' the end */
468 if (index < 8 && env->cwp == (NWINDOWS - 1))
469 index += (16 * NWINDOWS);
470 return index;
471 }
472
473 /* save the register window 'cwp1' */
474 static inline void save_window_offset(CPUSPARCState *env, int cwp1)
475 {
476 unsigned int i;
477 target_ulong sp_ptr;
478
479 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
480 #if defined(DEBUG_WIN)
481 printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n",
482 (int)sp_ptr, cwp1);
483 #endif
484 for(i = 0; i < 16; i++) {
485 tputl(sp_ptr, env->regbase[get_reg_index(env, cwp1, 8 + i)]);
486 sp_ptr += sizeof(target_ulong);
487 }
488 }
489
490 static void save_window(CPUSPARCState *env)
491 {
492 #ifndef TARGET_SPARC64
493 unsigned int new_wim;
494 new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) &
495 ((1LL << NWINDOWS) - 1);
496 save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
497 env->wim = new_wim;
498 #else
499 save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
500 env->cansave++;
501 env->canrestore--;
502 #endif
503 }
504
505 static void restore_window(CPUSPARCState *env)
506 {
507 unsigned int new_wim, i, cwp1;
508 target_ulong sp_ptr;
509
510 new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) &
511 ((1LL << NWINDOWS) - 1);
512
513 /* restore the invalid window */
514 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
515 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
516 #if defined(DEBUG_WIN)
517 printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n",
518 (int)sp_ptr, cwp1);
519 #endif
520 for(i = 0; i < 16; i++) {
521 env->regbase[get_reg_index(env, cwp1, 8 + i)] = tgetl(sp_ptr);
522 sp_ptr += sizeof(target_ulong);
523 }
524 env->wim = new_wim;
525 #ifdef TARGET_SPARC64
526 env->canrestore++;
527 if (env->cleanwin < NWINDOWS - 1)
528 env->cleanwin++;
529 env->cansave--;
530 #endif
531 }
532
533 static void flush_windows(CPUSPARCState *env)
534 {
535 int offset, cwp1;
536
537 offset = 1;
538 for(;;) {
539 /* if restore would invoke restore_window(), then we can stop */
540 cwp1 = (env->cwp + offset) & (NWINDOWS - 1);
541 if (env->wim & (1 << cwp1))
542 break;
543 save_window_offset(env, cwp1);
544 offset++;
545 }
546 /* set wim so that restore will reload the registers */
547 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
548 env->wim = 1 << cwp1;
549 #if defined(DEBUG_WIN)
550 printf("flush_windows: nb=%d\n", offset - 1);
551 #endif
552 }
553
554 void cpu_loop (CPUSPARCState *env)
555 {
556 int trapnr, ret;
557 target_siginfo_t info;
558
559 while (1) {
560 trapnr = cpu_sparc_exec (env);
561
562 switch (trapnr) {
563 #ifndef TARGET_SPARC64
564 case 0x88:
565 case 0x90:
566 #else
567 case 0x16d:
568 #endif
569 ret = do_syscall (env, env->gregs[1],
570 env->regwptr[0], env->regwptr[1],
571 env->regwptr[2], env->regwptr[3],
572 env->regwptr[4], env->regwptr[5]);
573 if ((unsigned int)ret >= (unsigned int)(-515)) {
574 #ifdef TARGET_SPARC64
575 env->xcc |= PSR_CARRY;
576 #else
577 env->psr |= PSR_CARRY;
578 #endif
579 ret = -ret;
580 } else {
581 #ifdef TARGET_SPARC64
582 env->xcc &= ~PSR_CARRY;
583 #else
584 env->psr &= ~PSR_CARRY;
585 #endif
586 }
587 env->regwptr[0] = ret;
588 /* next instruction */
589 env->pc = env->npc;
590 env->npc = env->npc + 4;
591 break;
592 case 0x83: /* flush windows */
593 flush_windows(env);
594 /* next instruction */
595 env->pc = env->npc;
596 env->npc = env->npc + 4;
597 break;
598 #ifndef TARGET_SPARC64
599 case TT_WIN_OVF: /* window overflow */
600 save_window(env);
601 break;
602 case TT_WIN_UNF: /* window underflow */
603 restore_window(env);
604 break;
605 case TT_TFAULT:
606 case TT_DFAULT:
607 {
608 info.si_signo = SIGSEGV;
609 info.si_errno = 0;
610 /* XXX: check env->error_code */
611 info.si_code = TARGET_SEGV_MAPERR;
612 info._sifields._sigfault._addr = env->mmuregs[4];
613 queue_signal(info.si_signo, &info);
614 }
615 break;
616 #else
617 case TT_SPILL: /* window overflow */
618 save_window(env);
619 break;
620 case TT_FILL: /* window underflow */
621 restore_window(env);
622 break;
623 // XXX
624 #endif
625 case EXCP_INTERRUPT:
626 /* just indicate that signals should be handled asap */
627 break;
628 case EXCP_DEBUG:
629 {
630 int sig;
631
632 sig = gdb_handlesig (env, TARGET_SIGTRAP);
633 if (sig)
634 {
635 info.si_signo = sig;
636 info.si_errno = 0;
637 info.si_code = TARGET_TRAP_BRKPT;
638 queue_signal(info.si_signo, &info);
639 }
640 }
641 break;
642 default:
643 printf ("Unhandled trap: 0x%x\n", trapnr);
644 cpu_dump_state(env, stderr, fprintf, 0);
645 exit (1);
646 }
647 process_pending_signals (env);
648 }
649 }
650
651 #endif
652
653 #ifdef TARGET_PPC
654
655 static inline uint64_t cpu_ppc_get_tb (CPUState *env)
656 {
657 /* TO FIX */
658 return 0;
659 }
660
661 uint32_t cpu_ppc_load_tbl (CPUState *env)
662 {
663 return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
664 }
665
666 uint32_t cpu_ppc_load_tbu (CPUState *env)
667 {
668 return cpu_ppc_get_tb(env) >> 32;
669 }
670
671 static void cpu_ppc_store_tb (CPUState *env, uint64_t value)
672 {
673 /* TO FIX */
674 }
675
676 void cpu_ppc_store_tbu (CPUState *env, uint32_t value)
677 {
678 cpu_ppc_store_tb(env, ((uint64_t)value << 32) | cpu_ppc_load_tbl(env));
679 }
680
681 void cpu_ppc_store_tbl (CPUState *env, uint32_t value)
682 {
683 cpu_ppc_store_tb(env, ((uint64_t)cpu_ppc_load_tbl(env) << 32) | value);
684 }
685
686 void cpu_ppc601_store_rtcu (CPUState *env, uint32_t value)
687 __attribute__ (( alias ("cpu_ppc_store_tbu") ));
688
689 uint32_t cpu_ppc601_load_rtcu (CPUState *env)
690 __attribute__ (( alias ("cpu_ppc_load_tbu") ));
691
692 void cpu_ppc601_store_rtcl (CPUState *env, uint32_t value)
693 {
694 cpu_ppc_store_tbl(env, value & 0x3FFFFF80);
695 }
696
697 uint32_t cpu_ppc601_load_rtcl (CPUState *env)
698 {
699 return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
700 }
701
702 void cpu_loop(CPUPPCState *env)
703 {
704 target_siginfo_t info;
705 int trapnr;
706 uint32_t ret;
707
708 for(;;) {
709 trapnr = cpu_ppc_exec(env);
710 if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH &&
711 trapnr != EXCP_TRACE) {
712 if (loglevel > 0) {
713 cpu_dump_state(env, logfile, fprintf, 0);
714 }
715 }
716 switch(trapnr) {
717 case EXCP_NONE:
718 break;
719 case EXCP_SYSCALL_USER:
720 /* system call */
721 /* WARNING:
722 * PPC ABI uses overflow flag in cr0 to signal an error
723 * in syscalls.
724 */
725 #if 0
726 printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
727 env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
728 #endif
729 env->crf[0] &= ~0x1;
730 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
731 env->gpr[5], env->gpr[6], env->gpr[7],
732 env->gpr[8]);
733 if (ret > (uint32_t)(-515)) {
734 env->crf[0] |= 0x1;
735 ret = -ret;
736 }
737 env->gpr[3] = ret;
738 #if 0
739 printf("syscall returned 0x%08x (%d)\n", ret, ret);
740 #endif
741 break;
742 case EXCP_RESET:
743 /* Should not happen ! */
744 fprintf(stderr, "RESET asked... Stop emulation\n");
745 if (loglevel)
746 fprintf(logfile, "RESET asked... Stop emulation\n");
747 abort();
748 case EXCP_MACHINE_CHECK:
749 fprintf(stderr, "Machine check exeption... Stop emulation\n");
750 if (loglevel)
751 fprintf(logfile, "RESET asked... Stop emulation\n");
752 info.si_signo = TARGET_SIGBUS;
753 info.si_errno = 0;
754 info.si_code = TARGET_BUS_OBJERR;
755 info._sifields._sigfault._addr = env->nip - 4;
756 queue_signal(info.si_signo, &info);
757 case EXCP_DSI:
758 fprintf(stderr, "Invalid data memory access: 0x%08x\n",
759 env->spr[SPR_DAR]);
760 if (loglevel) {
761 fprintf(logfile, "Invalid data memory access: 0x%08x\n",
762 env->spr[SPR_DAR]);
763 }
764 switch (env->error_code & 0xFF000000) {
765 case 0x40000000:
766 info.si_signo = TARGET_SIGSEGV;
767 info.si_errno = 0;
768 info.si_code = TARGET_SEGV_MAPERR;
769 break;
770 case 0x04000000:
771 info.si_signo = TARGET_SIGILL;
772 info.si_errno = 0;
773 info.si_code = TARGET_ILL_ILLADR;
774 break;
775 case 0x08000000:
776 info.si_signo = TARGET_SIGSEGV;
777 info.si_errno = 0;
778 info.si_code = TARGET_SEGV_ACCERR;
779 break;
780 default:
781 /* Let's send a regular segfault... */
782 fprintf(stderr, "Invalid segfault errno (%02x)\n",
783 env->error_code);
784 if (loglevel) {
785 fprintf(logfile, "Invalid segfault errno (%02x)\n",
786 env->error_code);
787 }
788 info.si_signo = TARGET_SIGSEGV;
789 info.si_errno = 0;
790 info.si_code = TARGET_SEGV_MAPERR;
791 break;
792 }
793 info._sifields._sigfault._addr = env->nip;
794 queue_signal(info.si_signo, &info);
795 break;
796 case EXCP_ISI:
797 fprintf(stderr, "Invalid instruction fetch\n");
798 if (loglevel)
799 fprintf(logfile, "Invalid instruction fetch\n");
800 switch (env->error_code & 0xFF000000) {
801 case 0x40000000:
802 info.si_signo = TARGET_SIGSEGV;
803 info.si_errno = 0;
804 info.si_code = TARGET_SEGV_MAPERR;
805 break;
806 case 0x10000000:
807 case 0x08000000:
808 info.si_signo = TARGET_SIGSEGV;
809 info.si_errno = 0;
810 info.si_code = TARGET_SEGV_ACCERR;
811 break;
812 default:
813 /* Let's send a regular segfault... */
814 fprintf(stderr, "Invalid segfault errno (%02x)\n",
815 env->error_code);
816 if (loglevel) {
817 fprintf(logfile, "Invalid segfault errno (%02x)\n",
818 env->error_code);
819 }
820 info.si_signo = TARGET_SIGSEGV;
821 info.si_errno = 0;
822 info.si_code = TARGET_SEGV_MAPERR;
823 break;
824 }
825 info._sifields._sigfault._addr = env->nip - 4;
826 queue_signal(info.si_signo, &info);
827 break;
828 case EXCP_EXTERNAL:
829 /* Should not happen ! */
830 fprintf(stderr, "External interruption... Stop emulation\n");
831 if (loglevel)
832 fprintf(logfile, "External interruption... Stop emulation\n");
833 abort();
834 case EXCP_ALIGN:
835 fprintf(stderr, "Invalid unaligned memory access\n");
836 if (loglevel)
837 fprintf(logfile, "Invalid unaligned memory access\n");
838 info.si_signo = TARGET_SIGBUS;
839 info.si_errno = 0;
840 info.si_code = TARGET_BUS_ADRALN;
841 info._sifields._sigfault._addr = env->nip - 4;
842 queue_signal(info.si_signo, &info);
843 break;
844 case EXCP_PROGRAM:
845 switch (env->error_code & ~0xF) {
846 case EXCP_FP:
847 fprintf(stderr, "Program exception\n");
848 if (loglevel)
849 fprintf(logfile, "Program exception\n");
850 /* Set FX */
851 env->fpscr[7] |= 0x8;
852 /* Finally, update FEX */
853 if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
854 ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
855 env->fpscr[7] |= 0x4;
856 info.si_signo = TARGET_SIGFPE;
857 info.si_errno = 0;
858 switch (env->error_code & 0xF) {
859 case EXCP_FP_OX:
860 info.si_code = TARGET_FPE_FLTOVF;
861 break;
862 case EXCP_FP_UX:
863 info.si_code = TARGET_FPE_FLTUND;
864 break;
865 case EXCP_FP_ZX:
866 case EXCP_FP_VXZDZ:
867 info.si_code = TARGET_FPE_FLTDIV;
868 break;
869 case EXCP_FP_XX:
870 info.si_code = TARGET_FPE_FLTRES;
871 break;
872 case EXCP_FP_VXSOFT:
873 info.si_code = TARGET_FPE_FLTINV;
874 break;
875 case EXCP_FP_VXNAN:
876 case EXCP_FP_VXISI:
877 case EXCP_FP_VXIDI:
878 case EXCP_FP_VXIMZ:
879 case EXCP_FP_VXVC:
880 case EXCP_FP_VXSQRT:
881 case EXCP_FP_VXCVI:
882 info.si_code = TARGET_FPE_FLTSUB;
883 break;
884 default:
885 fprintf(stderr, "Unknown floating point exception "
886 "(%02x)\n", env->error_code);
887 if (loglevel) {
888 fprintf(logfile, "Unknown floating point exception "
889 "(%02x)\n", env->error_code & 0xF);
890 }
891 }
892 break;
893 case EXCP_INVAL:
894 fprintf(stderr, "Invalid instruction\n");
895 if (loglevel)
896 fprintf(logfile, "Invalid instruction\n");
897 info.si_signo = TARGET_SIGILL;
898 info.si_errno = 0;
899 switch (env->error_code & 0xF) {
900 case EXCP_INVAL_INVAL:
901 info.si_code = TARGET_ILL_ILLOPC;
902 break;
903 case EXCP_INVAL_LSWX:
904 info.si_code = TARGET_ILL_ILLOPN;
905 break;
906 case EXCP_INVAL_SPR:
907 info.si_code = TARGET_ILL_PRVREG;
908 break;
909 case EXCP_INVAL_FP:
910 info.si_code = TARGET_ILL_COPROC;
911 break;
912 default:
913 fprintf(stderr, "Unknown invalid operation (%02x)\n",
914 env->error_code & 0xF);
915 if (loglevel) {
916 fprintf(logfile, "Unknown invalid operation (%02x)\n",
917 env->error_code & 0xF);
918 }
919 info.si_code = TARGET_ILL_ILLADR;
920 break;
921 }
922 break;
923 case EXCP_PRIV:
924 fprintf(stderr, "Privilege violation\n");
925 if (loglevel)
926 fprintf(logfile, "Privilege violation\n");
927 info.si_signo = TARGET_SIGILL;
928 info.si_errno = 0;
929 switch (env->error_code & 0xF) {
930 case EXCP_PRIV_OPC:
931 info.si_code = TARGET_ILL_PRVOPC;
932 break;
933 case EXCP_PRIV_REG:
934 info.si_code = TARGET_ILL_PRVREG;
935 break;
936 default:
937 fprintf(stderr, "Unknown privilege violation (%02x)\n",
938 env->error_code & 0xF);
939 info.si_code = TARGET_ILL_PRVOPC;
940 break;
941 }
942 break;
943 case EXCP_TRAP:
944 fprintf(stderr, "Tried to call a TRAP\n");
945 if (loglevel)
946 fprintf(logfile, "Tried to call a TRAP\n");
947 abort();
948 default:
949 /* Should not happen ! */
950 fprintf(stderr, "Unknown program exception (%02x)\n",
951 env->error_code);
952 if (loglevel) {
953 fprintf(logfile, "Unknwon program exception (%02x)\n",
954 env->error_code);
955 }
956 abort();
957 }
958 info._sifields._sigfault._addr = env->nip - 4;
959 queue_signal(info.si_signo, &info);
960 break;
961 case EXCP_NO_FP:
962 fprintf(stderr, "No floating point allowed\n");
963 if (loglevel)
964 fprintf(logfile, "No floating point allowed\n");
965 info.si_signo = TARGET_SIGILL;
966 info.si_errno = 0;
967 info.si_code = TARGET_ILL_COPROC;
968 info._sifields._sigfault._addr = env->nip - 4;
969 queue_signal(info.si_signo, &info);
970 break;
971 case EXCP_DECR:
972 /* Should not happen ! */
973 fprintf(stderr, "Decrementer exception\n");
974 if (loglevel)
975 fprintf(logfile, "Decrementer exception\n");
976 abort();
977 case EXCP_TRACE:
978 /* Do nothing: we use this to trace execution */
979 break;
980 case EXCP_FP_ASSIST:
981 /* Should not happen ! */
982 fprintf(stderr, "Floating point assist exception\n");
983 if (loglevel)
984 fprintf(logfile, "Floating point assist exception\n");
985 abort();
986 case EXCP_MTMSR:
987 /* We reloaded the msr, just go on */
988 if (msr_pr == 0) {
989 fprintf(stderr, "Tried to go into supervisor mode !\n");
990 if (loglevel)
991 fprintf(logfile, "Tried to go into supervisor mode !\n");
992 abort();
993 }
994 break;
995 case EXCP_BRANCH:
996 /* We stopped because of a jump... */
997 break;
998 case EXCP_INTERRUPT:
999 /* Don't know why this should ever happen... */
1000 break;
1001 case EXCP_DEBUG:
1002 {
1003 int sig;
1004
1005 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1006 if (sig)
1007 {
1008 info.si_signo = sig;
1009 info.si_errno = 0;
1010 info.si_code = TARGET_TRAP_BRKPT;
1011 queue_signal(info.si_signo, &info);
1012 }
1013 }
1014 break;
1015 default:
1016 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1017 trapnr);
1018 if (loglevel) {
1019 fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - "
1020 "0x%02x - aborting\n", trapnr, env->error_code);
1021 }
1022 abort();
1023 }
1024 process_pending_signals(env);
1025 }
1026 }
1027 #endif
1028
1029 #ifdef TARGET_MIPS
1030
1031 #define MIPS_SYS(name, args) args,
1032
1033 static const uint8_t mips_syscall_args[] = {
1034 MIPS_SYS(sys_syscall , 0) /* 4000 */
1035 MIPS_SYS(sys_exit , 1)
1036 MIPS_SYS(sys_fork , 0)
1037 MIPS_SYS(sys_read , 3)
1038 MIPS_SYS(sys_write , 3)
1039 MIPS_SYS(sys_open , 3) /* 4005 */
1040 MIPS_SYS(sys_close , 1)
1041 MIPS_SYS(sys_waitpid , 3)
1042 MIPS_SYS(sys_creat , 2)
1043 MIPS_SYS(sys_link , 2)
1044 MIPS_SYS(sys_unlink , 1) /* 4010 */
1045 MIPS_SYS(sys_execve , 0)
1046 MIPS_SYS(sys_chdir , 1)
1047 MIPS_SYS(sys_time , 1)
1048 MIPS_SYS(sys_mknod , 3)
1049 MIPS_SYS(sys_chmod , 2) /* 4015 */
1050 MIPS_SYS(sys_lchown , 3)
1051 MIPS_SYS(sys_ni_syscall , 0)
1052 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1053 MIPS_SYS(sys_lseek , 3)
1054 MIPS_SYS(sys_getpid , 0) /* 4020 */
1055 MIPS_SYS(sys_mount , 5)
1056 MIPS_SYS(sys_oldumount , 1)
1057 MIPS_SYS(sys_setuid , 1)
1058 MIPS_SYS(sys_getuid , 0)
1059 MIPS_SYS(sys_stime , 1) /* 4025 */
1060 MIPS_SYS(sys_ptrace , 4)
1061 MIPS_SYS(sys_alarm , 1)
1062 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1063 MIPS_SYS(sys_pause , 0)
1064 MIPS_SYS(sys_utime , 2) /* 4030 */
1065 MIPS_SYS(sys_ni_syscall , 0)
1066 MIPS_SYS(sys_ni_syscall , 0)
1067 MIPS_SYS(sys_access , 2)
1068 MIPS_SYS(sys_nice , 1)
1069 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1070 MIPS_SYS(sys_sync , 0)
1071 MIPS_SYS(sys_kill , 2)
1072 MIPS_SYS(sys_rename , 2)
1073 MIPS_SYS(sys_mkdir , 2)
1074 MIPS_SYS(sys_rmdir , 1) /* 4040 */
1075 MIPS_SYS(sys_dup , 1)
1076 MIPS_SYS(sys_pipe , 0)
1077 MIPS_SYS(sys_times , 1)
1078 MIPS_SYS(sys_ni_syscall , 0)
1079 MIPS_SYS(sys_brk , 1) /* 4045 */
1080 MIPS_SYS(sys_setgid , 1)
1081 MIPS_SYS(sys_getgid , 0)
1082 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1083 MIPS_SYS(sys_geteuid , 0)
1084 MIPS_SYS(sys_getegid , 0) /* 4050 */
1085 MIPS_SYS(sys_acct , 0)
1086 MIPS_SYS(sys_umount , 2)
1087 MIPS_SYS(sys_ni_syscall , 0)
1088 MIPS_SYS(sys_ioctl , 3)
1089 MIPS_SYS(sys_fcntl , 3) /* 4055 */
1090 MIPS_SYS(sys_ni_syscall , 2)
1091 MIPS_SYS(sys_setpgid , 2)
1092 MIPS_SYS(sys_ni_syscall , 0)
1093 MIPS_SYS(sys_olduname , 1)
1094 MIPS_SYS(sys_umask , 1) /* 4060 */
1095 MIPS_SYS(sys_chroot , 1)
1096 MIPS_SYS(sys_ustat , 2)
1097 MIPS_SYS(sys_dup2 , 2)
1098 MIPS_SYS(sys_getppid , 0)
1099 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1100 MIPS_SYS(sys_setsid , 0)
1101 MIPS_SYS(sys_sigaction , 3)
1102 MIPS_SYS(sys_sgetmask , 0)
1103 MIPS_SYS(sys_ssetmask , 1)
1104 MIPS_SYS(sys_setreuid , 2) /* 4070 */
1105 MIPS_SYS(sys_setregid , 2)
1106 MIPS_SYS(sys_sigsuspend , 0)
1107 MIPS_SYS(sys_sigpending , 1)
1108 MIPS_SYS(sys_sethostname , 2)
1109 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1110 MIPS_SYS(sys_getrlimit , 2)
1111 MIPS_SYS(sys_getrusage , 2)
1112 MIPS_SYS(sys_gettimeofday, 2)
1113 MIPS_SYS(sys_settimeofday, 2)
1114 MIPS_SYS(sys_getgroups , 2) /* 4080 */
1115 MIPS_SYS(sys_setgroups , 2)
1116 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1117 MIPS_SYS(sys_symlink , 2)
1118 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1119 MIPS_SYS(sys_readlink , 3) /* 4085 */
1120 MIPS_SYS(sys_uselib , 1)
1121 MIPS_SYS(sys_swapon , 2)
1122 MIPS_SYS(sys_reboot , 3)
1123 MIPS_SYS(old_readdir , 3)
1124 MIPS_SYS(old_mmap , 6) /* 4090 */
1125 MIPS_SYS(sys_munmap , 2)
1126 MIPS_SYS(sys_truncate , 2)
1127 MIPS_SYS(sys_ftruncate , 2)
1128 MIPS_SYS(sys_fchmod , 2)
1129 MIPS_SYS(sys_fchown , 3) /* 4095 */
1130 MIPS_SYS(sys_getpriority , 2)
1131 MIPS_SYS(sys_setpriority , 3)
1132 MIPS_SYS(sys_ni_syscall , 0)
1133 MIPS_SYS(sys_statfs , 2)
1134 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1135 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1136 MIPS_SYS(sys_socketcall , 2)
1137 MIPS_SYS(sys_syslog , 3)
1138 MIPS_SYS(sys_setitimer , 3)
1139 MIPS_SYS(sys_getitimer , 2) /* 4105 */
1140 MIPS_SYS(sys_newstat , 2)
1141 MIPS_SYS(sys_newlstat , 2)
1142 MIPS_SYS(sys_newfstat , 2)
1143 MIPS_SYS(sys_uname , 1)
1144 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1145 MIPS_SYS(sys_vhangup , 0)
1146 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1147 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1148 MIPS_SYS(sys_wait4 , 4)
1149 MIPS_SYS(sys_swapoff , 1) /* 4115 */
1150 MIPS_SYS(sys_sysinfo , 1)
1151 MIPS_SYS(sys_ipc , 6)
1152 MIPS_SYS(sys_fsync , 1)
1153 MIPS_SYS(sys_sigreturn , 0)
1154 MIPS_SYS(sys_clone , 0) /* 4120 */
1155 MIPS_SYS(sys_setdomainname, 2)
1156 MIPS_SYS(sys_newuname , 1)
1157 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1158 MIPS_SYS(sys_adjtimex , 1)
1159 MIPS_SYS(sys_mprotect , 3) /* 4125 */
1160 MIPS_SYS(sys_sigprocmask , 3)
1161 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1162 MIPS_SYS(sys_init_module , 5)
1163 MIPS_SYS(sys_delete_module, 1)
1164 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1165 MIPS_SYS(sys_quotactl , 0)
1166 MIPS_SYS(sys_getpgid , 1)
1167 MIPS_SYS(sys_fchdir , 1)
1168 MIPS_SYS(sys_bdflush , 2)
1169 MIPS_SYS(sys_sysfs , 3) /* 4135 */
1170 MIPS_SYS(sys_personality , 1)
1171 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1172 MIPS_SYS(sys_setfsuid , 1)
1173 MIPS_SYS(sys_setfsgid , 1)
1174 MIPS_SYS(sys_llseek , 5) /* 4140 */
1175 MIPS_SYS(sys_getdents , 3)
1176 MIPS_SYS(sys_select , 5)
1177 MIPS_SYS(sys_flock , 2)
1178 MIPS_SYS(sys_msync , 3)
1179 MIPS_SYS(sys_readv , 3) /* 4145 */
1180 MIPS_SYS(sys_writev , 3)
1181 MIPS_SYS(sys_cacheflush , 3)
1182 MIPS_SYS(sys_cachectl , 3)
1183 MIPS_SYS(sys_sysmips , 4)
1184 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1185 MIPS_SYS(sys_getsid , 1)
1186 MIPS_SYS(sys_fdatasync , 0)
1187 MIPS_SYS(sys_sysctl , 1)
1188 MIPS_SYS(sys_mlock , 2)
1189 MIPS_SYS(sys_munlock , 2) /* 4155 */
1190 MIPS_SYS(sys_mlockall , 1)
1191 MIPS_SYS(sys_munlockall , 0)
1192 MIPS_SYS(sys_sched_setparam, 2)
1193 MIPS_SYS(sys_sched_getparam, 2)
1194 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1195 MIPS_SYS(sys_sched_getscheduler, 1)
1196 MIPS_SYS(sys_sched_yield , 0)
1197 MIPS_SYS(sys_sched_get_priority_max, 1)
1198 MIPS_SYS(sys_sched_get_priority_min, 1)
1199 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1200 MIPS_SYS(sys_nanosleep, 2)
1201 MIPS_SYS(sys_mremap , 4)
1202 MIPS_SYS(sys_accept , 3)
1203 MIPS_SYS(sys_bind , 3)
1204 MIPS_SYS(sys_connect , 3) /* 4170 */
1205 MIPS_SYS(sys_getpeername , 3)
1206 MIPS_SYS(sys_getsockname , 3)
1207 MIPS_SYS(sys_getsockopt , 5)
1208 MIPS_SYS(sys_listen , 2)
1209 MIPS_SYS(sys_recv , 4) /* 4175 */
1210 MIPS_SYS(sys_recvfrom , 6)
1211 MIPS_SYS(sys_recvmsg , 3)
1212 MIPS_SYS(sys_send , 4)
1213 MIPS_SYS(sys_sendmsg , 3)
1214 MIPS_SYS(sys_sendto , 6) /* 4180 */
1215 MIPS_SYS(sys_setsockopt , 5)
1216 MIPS_SYS(sys_shutdown , 2)
1217 MIPS_SYS(sys_socket , 3)
1218 MIPS_SYS(sys_socketpair , 4)
1219 MIPS_SYS(sys_setresuid , 3) /* 4185 */
1220 MIPS_SYS(sys_getresuid , 3)
1221 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1222 MIPS_SYS(sys_poll , 3)
1223 MIPS_SYS(sys_nfsservctl , 3)
1224 MIPS_SYS(sys_setresgid , 3) /* 4190 */
1225 MIPS_SYS(sys_getresgid , 3)
1226 MIPS_SYS(sys_prctl , 5)
1227 MIPS_SYS(sys_rt_sigreturn, 0)
1228 MIPS_SYS(sys_rt_sigaction, 4)
1229 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1230 MIPS_SYS(sys_rt_sigpending, 2)
1231 MIPS_SYS(sys_rt_sigtimedwait, 4)
1232 MIPS_SYS(sys_rt_sigqueueinfo, 3)
1233 MIPS_SYS(sys_rt_sigsuspend, 0)
1234 MIPS_SYS(sys_pread64 , 6) /* 4200 */
1235 MIPS_SYS(sys_pwrite64 , 6)
1236 MIPS_SYS(sys_chown , 3)
1237 MIPS_SYS(sys_getcwd , 2)
1238 MIPS_SYS(sys_capget , 2)
1239 MIPS_SYS(sys_capset , 2) /* 4205 */
1240 MIPS_SYS(sys_sigaltstack , 0)
1241 MIPS_SYS(sys_sendfile , 4)
1242 MIPS_SYS(sys_ni_syscall , 0)
1243 MIPS_SYS(sys_ni_syscall , 0)
1244 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
1245 MIPS_SYS(sys_truncate64 , 4)
1246 MIPS_SYS(sys_ftruncate64 , 4)
1247 MIPS_SYS(sys_stat64 , 2)
1248 MIPS_SYS(sys_lstat64 , 2)
1249 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
1250 MIPS_SYS(sys_pivot_root , 2)
1251 MIPS_SYS(sys_mincore , 3)
1252 MIPS_SYS(sys_madvise , 3)
1253 MIPS_SYS(sys_getdents64 , 3)
1254 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
1255 MIPS_SYS(sys_ni_syscall , 0)
1256 MIPS_SYS(sys_gettid , 0)
1257 MIPS_SYS(sys_readahead , 5)
1258 MIPS_SYS(sys_setxattr , 5)
1259 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
1260 MIPS_SYS(sys_fsetxattr , 5)
1261 MIPS_SYS(sys_getxattr , 4)
1262 MIPS_SYS(sys_lgetxattr , 4)
1263 MIPS_SYS(sys_fgetxattr , 4)
1264 MIPS_SYS(sys_listxattr , 3) /* 4230 */
1265 MIPS_SYS(sys_llistxattr , 3)
1266 MIPS_SYS(sys_flistxattr , 3)
1267 MIPS_SYS(sys_removexattr , 2)
1268 MIPS_SYS(sys_lremovexattr, 2)
1269 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
1270 MIPS_SYS(sys_tkill , 2)
1271 MIPS_SYS(sys_sendfile64 , 5)
1272 MIPS_SYS(sys_futex , 2)
1273 MIPS_SYS(sys_sched_setaffinity, 3)
1274 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
1275 MIPS_SYS(sys_io_setup , 2)
1276 MIPS_SYS(sys_io_destroy , 1)
1277 MIPS_SYS(sys_io_getevents, 5)
1278 MIPS_SYS(sys_io_submit , 3)
1279 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
1280 MIPS_SYS(sys_exit_group , 1)
1281 MIPS_SYS(sys_lookup_dcookie, 3)
1282 MIPS_SYS(sys_epoll_create, 1)
1283 MIPS_SYS(sys_epoll_ctl , 4)
1284 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
1285 MIPS_SYS(sys_remap_file_pages, 5)
1286 MIPS_SYS(sys_set_tid_address, 1)
1287 MIPS_SYS(sys_restart_syscall, 0)
1288 MIPS_SYS(sys_fadvise64_64, 7)
1289 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
1290 MIPS_SYS(sys_fstatfs64 , 2)
1291 MIPS_SYS(sys_timer_create, 3)
1292 MIPS_SYS(sys_timer_settime, 4)
1293 MIPS_SYS(sys_timer_gettime, 2)
1294 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
1295 MIPS_SYS(sys_timer_delete, 1)
1296 MIPS_SYS(sys_clock_settime, 2)
1297 MIPS_SYS(sys_clock_gettime, 2)
1298 MIPS_SYS(sys_clock_getres, 2)
1299 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
1300 MIPS_SYS(sys_tgkill , 3)
1301 MIPS_SYS(sys_utimes , 2)
1302 MIPS_SYS(sys_mbind , 4)
1303 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
1304 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
1305 MIPS_SYS(sys_mq_open , 4)
1306 MIPS_SYS(sys_mq_unlink , 1)
1307 MIPS_SYS(sys_mq_timedsend, 5)
1308 MIPS_SYS(sys_mq_timedreceive, 5)
1309 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
1310 MIPS_SYS(sys_mq_getsetattr, 3)
1311 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
1312 MIPS_SYS(sys_waitid , 4)
1313 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
1314 MIPS_SYS(sys_add_key , 5)
1315 MIPS_SYS(sys_request_key , 4)
1316 MIPS_SYS(sys_keyctl , 5)
1317 MIPS_SYS(sys_set_thread_area, 1)
1318 };
1319
1320 #undef MIPS_SYS
1321
1322 void cpu_loop(CPUMIPSState *env)
1323 {
1324 target_siginfo_t info;
1325 int trapnr, ret, nb_args;
1326 unsigned int syscall_num;
1327 target_ulong arg5, arg6, sp_reg;
1328
1329 for(;;) {
1330 trapnr = cpu_mips_exec(env);
1331 switch(trapnr) {
1332 case EXCP_SYSCALL:
1333 {
1334 syscall_num = env->gpr[2] - 4000;
1335 env->PC += 4;
1336 if (syscall_num >= sizeof(mips_syscall_args)) {
1337 ret = -ENOSYS;
1338 } else {
1339 nb_args = mips_syscall_args[syscall_num];
1340 if (nb_args >= 5) {
1341 sp_reg = env->gpr[29];
1342 /* these arguments are taken from the stack */
1343 arg5 = tgetl(sp_reg + 16);
1344 if (nb_args >= 6) {
1345 arg6 = tgetl(sp_reg + 20);
1346 } else {
1347 arg6 = 0;
1348 }
1349 } else {
1350 arg5 = 0;
1351 arg6 = 0;
1352 }
1353 ret = do_syscall(env,
1354 env->gpr[2],
1355 env->gpr[4],
1356 env->gpr[5],
1357 env->gpr[6],
1358 env->gpr[7],
1359 arg5,
1360 arg6);
1361 }
1362 if ((unsigned int)ret >= (unsigned int)(-1133)) {
1363 env->gpr[7] = 1; /* error flag */
1364 ret = -ret;
1365 env->gpr[0] = ret;
1366 env->gpr[2] = ret;
1367 } else {
1368 env->gpr[7] = 0; /* error flag */
1369 env->gpr[2] = ret;
1370 }
1371 }
1372 break;
1373 case EXCP_TLBL:
1374 case EXCP_TLBS:
1375 case EXCP_CpU:
1376 case EXCP_RI:
1377 info.si_signo = TARGET_SIGILL;
1378 info.si_errno = 0;
1379 info.si_code = 0;
1380 queue_signal(info.si_signo, &info);
1381 break;
1382 case EXCP_INTERRUPT:
1383 /* just indicate that signals should be handled asap */
1384 break;
1385 case EXCP_DEBUG:
1386 {
1387 int sig;
1388
1389 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1390 if (sig)
1391 {
1392 info.si_signo = sig;
1393 info.si_errno = 0;
1394 info.si_code = TARGET_TRAP_BRKPT;
1395 queue_signal(info.si_signo, &info);
1396 }
1397 }
1398 break;
1399 default:
1400 // error:
1401 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1402 trapnr);
1403 cpu_dump_state(env, stderr, fprintf, 0);
1404 abort();
1405 }
1406 process_pending_signals(env);
1407 }
1408 }
1409 #endif
1410
1411 #ifdef TARGET_SH4
1412 void cpu_loop (CPUState *env)
1413 {
1414 int trapnr, ret;
1415 target_siginfo_t info;
1416
1417 while (1) {
1418 trapnr = cpu_sh4_exec (env);
1419
1420 switch (trapnr) {
1421 case 0x160:
1422 ret = do_syscall(env,
1423 env->gregs[3],
1424 env->gregs[4],
1425 env->gregs[5],
1426 env->gregs[6],
1427 env->gregs[7],
1428 env->gregs[0],
1429 0);
1430 env->gregs[0] = ret;
1431 env->pc += 2;
1432 break;
1433 case EXCP_DEBUG:
1434 {
1435 int sig;
1436
1437 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1438 if (sig)
1439 {
1440 info.si_signo = sig;
1441 info.si_errno = 0;
1442 info.si_code = TARGET_TRAP_BRKPT;
1443 queue_signal(info.si_signo, &info);
1444 }
1445 }
1446 break;
1447 default:
1448 printf ("Unhandled trap: 0x%x\n", trapnr);
1449 cpu_dump_state(env, stderr, fprintf, 0);
1450 exit (1);
1451 }
1452 process_pending_signals (env);
1453 }
1454 }
1455 #endif
1456
1457 #ifdef TARGET_M68K
1458
1459 void cpu_loop(CPUM68KState *env)
1460 {
1461 int trapnr;
1462 unsigned int n;
1463 target_siginfo_t info;
1464 TaskState *ts = env->opaque;
1465
1466 for(;;) {
1467 trapnr = cpu_m68k_exec(env);
1468 switch(trapnr) {
1469 case EXCP_ILLEGAL:
1470 {
1471 if (ts->sim_syscalls) {
1472 uint16_t nr;
1473 nr = lduw(env->pc + 2);
1474 env->pc += 4;
1475 do_m68k_simcall(env, nr);
1476 } else {
1477 goto do_sigill;
1478 }
1479 }
1480 break;
1481 case EXCP_HALTED:
1482 /* Semihosing syscall. */
1483 env->pc += 2;
1484 do_m68k_semihosting(env, env->dregs[0]);
1485 break;
1486 case EXCP_LINEA:
1487 case EXCP_LINEF:
1488 case EXCP_UNSUPPORTED:
1489 do_sigill:
1490 info.si_signo = SIGILL;
1491 info.si_errno = 0;
1492 info.si_code = TARGET_ILL_ILLOPN;
1493 info._sifields._sigfault._addr = env->pc;
1494 queue_signal(info.si_signo, &info);
1495 break;
1496 case EXCP_TRAP0:
1497 {
1498 ts->sim_syscalls = 0;
1499 n = env->dregs[0];
1500 env->pc += 2;
1501 env->dregs[0] = do_syscall(env,
1502 n,
1503 env->dregs[1],
1504 env->dregs[2],
1505 env->dregs[3],
1506 env->dregs[4],
1507 env->dregs[5],
1508 env->dregs[6]);
1509 }
1510 break;
1511 case EXCP_INTERRUPT:
1512 /* just indicate that signals should be handled asap */
1513 break;
1514 case EXCP_ACCESS:
1515 {
1516 info.si_signo = SIGSEGV;
1517 info.si_errno = 0;
1518 /* XXX: check env->error_code */
1519 info.si_code = TARGET_SEGV_MAPERR;
1520 info._sifields._sigfault._addr = env->mmu.ar;
1521 queue_signal(info.si_signo, &info);
1522 }
1523 break;
1524 case EXCP_DEBUG:
1525 {
1526 int sig;
1527
1528 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1529 if (sig)
1530 {
1531 info.si_signo = sig;
1532 info.si_errno = 0;
1533 info.si_code = TARGET_TRAP_BRKPT;
1534 queue_signal(info.si_signo, &info);
1535 }
1536 }
1537 break;
1538 default:
1539 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1540 trapnr);
1541 cpu_dump_state(env, stderr, fprintf, 0);
1542 abort();
1543 }
1544 process_pending_signals(env);
1545 }
1546 }
1547 #endif /* TARGET_M68K */
1548
1549 #ifdef TARGET_ALPHA
1550 void cpu_loop (CPUState *env)
1551 {
1552 int trapnr, ret;
1553 target_siginfo_t info;
1554
1555 while (1) {
1556 trapnr = cpu_alpha_exec (env);
1557
1558 switch (trapnr) {
1559 case EXCP_RESET:
1560 fprintf(stderr, "Reset requested. Exit\n");
1561 exit(1);
1562 break;
1563 case EXCP_MCHK:
1564 fprintf(stderr, "Machine check exception. Exit\n");
1565 exit(1);
1566 break;
1567 case EXCP_ARITH:
1568 fprintf(stderr, "Arithmetic trap.\n");
1569 exit(1);
1570 break;
1571 case EXCP_HW_INTERRUPT:
1572 fprintf(stderr, "External interrupt. Exit\n");
1573 exit(1);
1574 break;
1575 case EXCP_DFAULT:
1576 fprintf(stderr, "MMU data fault\n");
1577 exit(1);
1578 break;
1579 case EXCP_DTB_MISS_PAL:
1580 fprintf(stderr, "MMU data TLB miss in PALcode\n");
1581 exit(1);
1582 break;
1583 case EXCP_ITB_MISS:
1584 fprintf(stderr, "MMU instruction TLB miss\n");
1585 exit(1);
1586 break;
1587 case EXCP_ITB_ACV:
1588 fprintf(stderr, "MMU instruction access violation\n");
1589 exit(1);
1590 break;
1591 case EXCP_DTB_MISS_NATIVE:
1592 fprintf(stderr, "MMU data TLB miss\n");
1593 exit(1);
1594 break;
1595 case EXCP_UNALIGN:
1596 fprintf(stderr, "Unaligned access\n");
1597 exit(1);
1598 break;
1599 case EXCP_OPCDEC:
1600 fprintf(stderr, "Invalid instruction\n");
1601 exit(1);
1602 break;
1603 case EXCP_FEN:
1604 fprintf(stderr, "Floating-point not allowed\n");
1605 exit(1);
1606 break;
1607 case EXCP_CALL_PAL ... (EXCP_CALL_PALP - 1):
1608 fprintf(stderr, "Call to PALcode\n");
1609 call_pal(env, (trapnr >> 6) | 0x80);
1610 break;
1611 case EXCP_CALL_PALP ... (EXCP_CALL_PALE - 1):
1612 fprintf(stderr, "Priviledged call to PALcode\n");
1613 exit(1);
1614 break;
1615 case EXCP_DEBUG:
1616 {
1617 int sig;
1618
1619 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1620 if (sig)
1621 {
1622 info.si_signo = sig;
1623 info.si_errno = 0;
1624 info.si_code = TARGET_TRAP_BRKPT;
1625 queue_signal(info.si_signo, &info);
1626 }
1627 }
1628 break;
1629 default:
1630 printf ("Unhandled trap: 0x%x\n", trapnr);
1631 cpu_dump_state(env, stderr, fprintf, 0);
1632 exit (1);
1633 }
1634 process_pending_signals (env);
1635 }
1636 }
1637 #endif /* TARGET_ALPHA */
1638
1639 void usage(void)
1640 {
1641 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2007 Fabrice Bellard\n"
1642 "usage: qemu-" TARGET_ARCH " [-h] [-g] [-d opts] [-L path] [-s size] [-cpu model] program [arguments...]\n"
1643 "Linux CPU emulator (compiled for %s emulation)\n"
1644 "\n"
1645 "-h print this help\n"
1646 "-g port wait gdb connection to port\n"
1647 "-L path set the elf interpreter prefix (default=%s)\n"
1648 "-s size set the stack size in bytes (default=%ld)\n"
1649 "-cpu model select CPU (-cpu ? for list)\n"
1650 "\n"
1651 "debug options:\n"
1652 #ifdef USE_CODE_COPY
1653 "-no-code-copy disable code copy acceleration\n"
1654 #endif
1655 "-d options activate log (logfile=%s)\n"
1656 "-p pagesize set the host page size to 'pagesize'\n",
1657 TARGET_ARCH,
1658 interp_prefix,
1659 x86_stack_size,
1660 DEBUG_LOGFILE);
1661 _exit(1);
1662 }
1663
1664 /* XXX: currently only used for async signals (see signal.c) */
1665 CPUState *global_env;
1666
1667 /* used to free thread contexts */
1668 TaskState *first_task_state;
1669
1670 int main(int argc, char **argv)
1671 {
1672 const char *filename;
1673 const char *cpu_model;
1674 struct target_pt_regs regs1, *regs = &regs1;
1675 struct image_info info1, *info = &info1;
1676 TaskState ts1, *ts = &ts1;
1677 CPUState *env;
1678 int optind;
1679 const char *r;
1680 int gdbstub_port = 0;
1681
1682 if (argc <= 1)
1683 usage();
1684
1685 /* init debug */
1686 cpu_set_log_filename(DEBUG_LOGFILE);
1687
1688 cpu_model = NULL;
1689 optind = 1;
1690 for(;;) {
1691 if (optind >= argc)
1692 break;
1693 r = argv[optind];
1694 if (r[0] != '-')
1695 break;
1696 optind++;
1697 r++;
1698 if (!strcmp(r, "-")) {
1699 break;
1700 } else if (!strcmp(r, "d")) {
1701 int mask;
1702 CPULogItem *item;
1703
1704 if (optind >= argc)
1705 break;
1706
1707 r = argv[optind++];
1708 mask = cpu_str_to_log_mask(r);
1709 if (!mask) {
1710 printf("Log items (comma separated):\n");
1711 for(item = cpu_log_items; item->mask != 0; item++) {
1712 printf("%-10s %s\n", item->name, item->help);
1713 }
1714 exit(1);
1715 }
1716 cpu_set_log(mask);
1717 } else if (!strcmp(r, "s")) {
1718 r = argv[optind++];
1719 x86_stack_size = strtol(r, (char **)&r, 0);
1720 if (x86_stack_size <= 0)
1721 usage();
1722 if (*r == 'M')
1723 x86_stack_size *= 1024 * 1024;
1724 else if (*r == 'k' || *r == 'K')
1725 x86_stack_size *= 1024;
1726 } else if (!strcmp(r, "L")) {
1727 interp_prefix = argv[optind++];
1728 } else if (!strcmp(r, "p")) {
1729 qemu_host_page_size = atoi(argv[optind++]);
1730 if (qemu_host_page_size == 0 ||
1731 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
1732 fprintf(stderr, "page size must be a power of two\n");
1733 exit(1);
1734 }
1735 } else if (!strcmp(r, "g")) {
1736 gdbstub_port = atoi(argv[optind++]);
1737 } else if (!strcmp(r, "r")) {
1738 qemu_uname_release = argv[optind++];
1739 } else if (!strcmp(r, "cpu")) {
1740 cpu_model = argv[optind++];
1741 if (strcmp(cpu_model, "?") == 0) {
1742 #if defined(TARGET_PPC)
1743 ppc_cpu_list(stdout, &fprintf);
1744 #elif defined(TARGET_ARM)
1745 arm_cpu_list();
1746 #elif defined(TARGET_MIPS)
1747 mips_cpu_list(stdout, &fprintf);
1748 #endif
1749 _exit(1);
1750 }
1751 } else
1752 #ifdef USE_CODE_COPY
1753 if (!strcmp(r, "no-code-copy")) {
1754 code_copy_enabled = 0;
1755 } else
1756 #endif
1757 {
1758 usage();
1759 }
1760 }
1761 if (optind >= argc)
1762 usage();
1763 filename = argv[optind];
1764
1765 /* Zero out regs */
1766 memset(regs, 0, sizeof(struct target_pt_regs));
1767
1768 /* Zero out image_info */
1769 memset(info, 0, sizeof(struct image_info));
1770
1771 /* Scan interp_prefix dir for replacement files. */
1772 init_paths(interp_prefix);
1773
1774 /* NOTE: we need to init the CPU at this stage to get
1775 qemu_host_page_size */
1776 env = cpu_init();
1777 global_env = env;
1778
1779 if (loader_exec(filename, argv+optind, environ, regs, info) != 0) {
1780 printf("Error loading %s\n", filename);
1781 _exit(1);
1782 }
1783
1784 if (loglevel) {
1785 page_dump(logfile);
1786
1787 fprintf(logfile, "start_brk 0x%08lx\n" , info->start_brk);
1788 fprintf(logfile, "end_code 0x%08lx\n" , info->end_code);
1789 fprintf(logfile, "start_code 0x%08lx\n" , info->start_code);
1790 fprintf(logfile, "start_data 0x%08lx\n" , info->start_data);
1791 fprintf(logfile, "end_data 0x%08lx\n" , info->end_data);
1792 fprintf(logfile, "start_stack 0x%08lx\n" , info->start_stack);
1793 fprintf(logfile, "brk 0x%08lx\n" , info->brk);
1794 fprintf(logfile, "entry 0x%08lx\n" , info->entry);
1795 }
1796
1797 target_set_brk(info->brk);
1798 syscall_init();
1799 signal_init();
1800
1801 /* build Task State */
1802 memset(ts, 0, sizeof(TaskState));
1803 env->opaque = ts;
1804 ts->used = 1;
1805 ts->info = info;
1806 env->user_mode_only = 1;
1807
1808 #if defined(TARGET_I386)
1809 cpu_x86_set_cpl(env, 3);
1810
1811 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
1812 env->hflags |= HF_PE_MASK;
1813 if (env->cpuid_features & CPUID_SSE) {
1814 env->cr[4] |= CR4_OSFXSR_MASK;
1815 env->hflags |= HF_OSFXSR_MASK;
1816 }
1817
1818 /* flags setup : we activate the IRQs by default as in user mode */
1819 env->eflags |= IF_MASK;
1820
1821 /* linux register setup */
1822 #if defined(TARGET_X86_64)
1823 env->regs[R_EAX] = regs->rax;
1824 env->regs[R_EBX] = regs->rbx;
1825 env->regs[R_ECX] = regs->rcx;
1826 env->regs[R_EDX] = regs->rdx;
1827 env->regs[R_ESI] = regs->rsi;
1828 env->regs[R_EDI] = regs->rdi;
1829 env->regs[R_EBP] = regs->rbp;
1830 env->regs[R_ESP] = regs->rsp;
1831 env->eip = regs->rip;
1832 #else
1833 env->regs[R_EAX] = regs->eax;
1834 env->regs[R_EBX] = regs->ebx;
1835 env->regs[R_ECX] = regs->ecx;
1836 env->regs[R_EDX] = regs->edx;
1837 env->regs[R_ESI] = regs->esi;
1838 env->regs[R_EDI] = regs->edi;
1839 env->regs[R_EBP] = regs->ebp;
1840 env->regs[R_ESP] = regs->esp;
1841 env->eip = regs->eip;
1842 #endif
1843
1844 /* linux interrupt setup */
1845 env->idt.base = h2g(idt_table);
1846 env->idt.limit = sizeof(idt_table) - 1;
1847 set_idt(0, 0);
1848 set_idt(1, 0);
1849 set_idt(2, 0);
1850 set_idt(3, 3);
1851 set_idt(4, 3);
1852 set_idt(5, 3);
1853 set_idt(6, 0);
1854 set_idt(7, 0);
1855 set_idt(8, 0);
1856 set_idt(9, 0);
1857 set_idt(10, 0);
1858 set_idt(11, 0);
1859 set_idt(12, 0);
1860 set_idt(13, 0);
1861 set_idt(14, 0);
1862 set_idt(15, 0);
1863 set_idt(16, 0);
1864 set_idt(17, 0);
1865 set_idt(18, 0);
1866 set_idt(19, 0);
1867 set_idt(0x80, 3);
1868
1869 /* linux segment setup */
1870 env->gdt.base = h2g(gdt_table);
1871 env->gdt.limit = sizeof(gdt_table) - 1;
1872 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
1873 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1874 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
1875 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
1876 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1877 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
1878 cpu_x86_load_seg(env, R_CS, __USER_CS);
1879 cpu_x86_load_seg(env, R_DS, __USER_DS);
1880 cpu_x86_load_seg(env, R_ES, __USER_DS);
1881 cpu_x86_load_seg(env, R_SS, __USER_DS);
1882 cpu_x86_load_seg(env, R_FS, __USER_DS);
1883 cpu_x86_load_seg(env, R_GS, __USER_DS);
1884
1885 #elif defined(TARGET_ARM)
1886 {
1887 int i;
1888 if (cpu_model == NULL)
1889 cpu_model = "arm926";
1890 cpu_arm_set_model(env, cpu_model);
1891 cpsr_write(env, regs->uregs[16], 0xffffffff);
1892 for(i = 0; i < 16; i++) {
1893 env->regs[i] = regs->uregs[i];
1894 }
1895 ts->stack_base = info->start_stack;
1896 ts->heap_base = info->brk;
1897 /* This will be filled in on the first SYS_HEAPINFO call. */
1898 ts->heap_limit = 0;
1899 }
1900 #elif defined(TARGET_SPARC)
1901 {
1902 int i;
1903 env->pc = regs->pc;
1904 env->npc = regs->npc;
1905 env->y = regs->y;
1906 for(i = 0; i < 8; i++)
1907 env->gregs[i] = regs->u_regs[i];
1908 for(i = 0; i < 8; i++)
1909 env->regwptr[i] = regs->u_regs[i + 8];
1910 }
1911 #elif defined(TARGET_PPC)
1912 {
1913 ppc_def_t *def;
1914 int i;
1915
1916 /* Choose and initialise CPU */
1917 if (cpu_model == NULL)
1918 cpu_model = "750";
1919 ppc_find_by_name(cpu_model, &def);
1920 if (def == NULL) {
1921 cpu_abort(env,
1922 "Unable to find PowerPC CPU definition\n");
1923 }
1924 cpu_ppc_register(env, def);
1925
1926 for (i = 0; i < 32; i++) {
1927 if (i != 12 && i != 6 && i != 13)
1928 env->msr[i] = (regs->msr >> i) & 1;
1929 }
1930 #if defined(TARGET_PPC64)
1931 msr_sf = 1;
1932 #endif
1933 env->nip = regs->nip;
1934 for(i = 0; i < 32; i++) {
1935 env->gpr[i] = regs->gpr[i];
1936 }
1937 }
1938 #elif defined(TARGET_M68K)
1939 {
1940 m68k_def_t *def;
1941 def = m68k_find_by_name("cfv4e");
1942 if (def == NULL) {
1943 cpu_abort(cpu_single_env,
1944 "Unable to find m68k CPU definition\n");
1945 }
1946 cpu_m68k_register(cpu_single_env, def);
1947 env->pc = regs->pc;
1948 env->dregs[0] = regs->d0;
1949 env->dregs[1] = regs->d1;
1950 env->dregs[2] = regs->d2;
1951 env->dregs[3] = regs->d3;
1952 env->dregs[4] = regs->d4;
1953 env->dregs[5] = regs->d5;
1954 env->dregs[6] = regs->d6;
1955 env->dregs[7] = regs->d7;
1956 env->aregs[0] = regs->a0;
1957 env->aregs[1] = regs->a1;
1958 env->aregs[2] = regs->a2;
1959 env->aregs[3] = regs->a3;
1960 env->aregs[4] = regs->a4;
1961 env->aregs[5] = regs->a5;
1962 env->aregs[6] = regs->a6;
1963 env->aregs[7] = regs->usp;
1964 env->sr = regs->sr;
1965 ts->sim_syscalls = 1;
1966 }
1967 #elif defined(TARGET_MIPS)
1968 {
1969 mips_def_t *def;
1970 int i;
1971
1972 /* Choose and initialise CPU */
1973 if (cpu_model == NULL)
1974 cpu_model = "24Kf";
1975 mips_find_by_name(cpu_model, &def);
1976 if (def == NULL)
1977 cpu_abort(env, "Unable to find MIPS CPU definition\n");
1978 cpu_mips_register(env, def);
1979
1980 for(i = 0; i < 32; i++) {
1981 env->gpr[i] = regs->regs[i];
1982 }
1983 env->PC = regs->cp0_epc;
1984 if (env->CP0_Config1 & (1 << CP0C1_FP)) {
1985 env->CP0_Status |= (1 << CP0St_CU1);
1986 }
1987 }
1988 #elif defined(TARGET_SH4)
1989 {
1990 int i;
1991
1992 for(i = 0; i < 16; i++) {
1993 env->gregs[i] = regs->regs[i];
1994 }
1995 env->pc = regs->pc;
1996 }
1997 #elif defined(TARGET_ALPHA)
1998 {
1999 int i;
2000
2001 for(i = 0; i < 28; i++) {
2002 env->ir[i] = ((target_ulong *)regs)[i];
2003 }
2004 env->ipr[IPR_USP] = regs->usp;
2005 env->ir[30] = regs->usp;
2006 env->pc = regs->pc;
2007 env->unique = regs->unique;
2008 }
2009 #else
2010 #error unsupported target CPU
2011 #endif
2012
2013 if (gdbstub_port) {
2014 gdbserver_start (gdbstub_port);
2015 gdb_handlesig(env, 0);
2016 }
2017 cpu_loop(env);
2018 /* never exits */
2019 return 0;
2020 }
Samsung s3c2440 and arm920t support for the mini2440 dev board