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SH bugfixes.
[qemu/mini2440.git] / linux-user / main.c
bloba73919ec3ce92117cef297819c5575fea9485529
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 defined(__i386__)
111
112 int64_t cpu_get_real_ticks(void)
113 {
114 int64_t val;
115 asm volatile ("rdtsc" : "=A" (val));
116 return val;
117 }
118
119 #elif defined(__x86_64__)
120
121 int64_t cpu_get_real_ticks(void)
122 {
123 uint32_t low,high;
124 int64_t val;
125 asm volatile("rdtsc" : "=a" (low), "=d" (high));
126 val = high;
127 val <<= 32;
128 val |= low;
129 return val;
130 }
131
132 #else
133
134 static uint64_t emu_time;
135
136 int64_t cpu_get_real_ticks(void)
137 {
138 return emu_time++;
139 }
140
141 #endif
142
143 #ifdef TARGET_I386
144 /***********************************************************/
145 /* CPUX86 core interface */
146
147 uint64_t cpu_get_tsc(CPUX86State *env)
148 {
149 return cpu_get_real_ticks();
150 }
151
152 static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
153 int flags)
154 {
155 unsigned int e1, e2;
156 uint32_t *p;
157 e1 = (addr << 16) | (limit & 0xffff);
158 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
159 e2 |= flags;
160 p = ptr;
161 p[0] = tswapl(e1);
162 p[1] = tswapl(e2);
163 }
164
165 static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
166 unsigned long addr, unsigned int sel)
167 {
168 unsigned int e1, e2;
169 uint32_t *p;
170 e1 = (addr & 0xffff) | (sel << 16);
171 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
172 p = ptr;
173 p[0] = tswapl(e1);
174 p[1] = tswapl(e2);
175 }
176
177 uint64_t gdt_table[6];
178 uint64_t idt_table[256];
179
180 /* only dpl matters as we do only user space emulation */
181 static void set_idt(int n, unsigned int dpl)
182 {
183 set_gate(idt_table + n, 0, dpl, 0, 0);
184 }
185
186 void cpu_loop(CPUX86State *env)
187 {
188 int trapnr;
189 target_ulong pc;
190 target_siginfo_t info;
191
192 for(;;) {
193 trapnr = cpu_x86_exec(env);
194 switch(trapnr) {
195 case 0x80:
196 /* linux syscall */
197 env->regs[R_EAX] = do_syscall(env,
198 env->regs[R_EAX],
199 env->regs[R_EBX],
200 env->regs[R_ECX],
201 env->regs[R_EDX],
202 env->regs[R_ESI],
203 env->regs[R_EDI],
204 env->regs[R_EBP]);
205 break;
206 case EXCP0B_NOSEG:
207 case EXCP0C_STACK:
208 info.si_signo = SIGBUS;
209 info.si_errno = 0;
210 info.si_code = TARGET_SI_KERNEL;
211 info._sifields._sigfault._addr = 0;
212 queue_signal(info.si_signo, &info);
213 break;
214 case EXCP0D_GPF:
215 if (env->eflags & VM_MASK) {
216 handle_vm86_fault(env);
217 } else {
218 info.si_signo = SIGSEGV;
219 info.si_errno = 0;
220 info.si_code = TARGET_SI_KERNEL;
221 info._sifields._sigfault._addr = 0;
222 queue_signal(info.si_signo, &info);
223 }
224 break;
225 case EXCP0E_PAGE:
226 info.si_signo = SIGSEGV;
227 info.si_errno = 0;
228 if (!(env->error_code & 1))
229 info.si_code = TARGET_SEGV_MAPERR;
230 else
231 info.si_code = TARGET_SEGV_ACCERR;
232 info._sifields._sigfault._addr = env->cr[2];
233 queue_signal(info.si_signo, &info);
234 break;
235 case EXCP00_DIVZ:
236 if (env->eflags & VM_MASK) {
237 handle_vm86_trap(env, trapnr);
238 } else {
239 /* division by zero */
240 info.si_signo = SIGFPE;
241 info.si_errno = 0;
242 info.si_code = TARGET_FPE_INTDIV;
243 info._sifields._sigfault._addr = env->eip;
244 queue_signal(info.si_signo, &info);
245 }
246 break;
247 case EXCP01_SSTP:
248 case EXCP03_INT3:
249 if (env->eflags & VM_MASK) {
250 handle_vm86_trap(env, trapnr);
251 } else {
252 info.si_signo = SIGTRAP;
253 info.si_errno = 0;
254 if (trapnr == EXCP01_SSTP) {
255 info.si_code = TARGET_TRAP_BRKPT;
256 info._sifields._sigfault._addr = env->eip;
257 } else {
258 info.si_code = TARGET_SI_KERNEL;
259 info._sifields._sigfault._addr = 0;
260 }
261 queue_signal(info.si_signo, &info);
262 }
263 break;
264 case EXCP04_INTO:
265 case EXCP05_BOUND:
266 if (env->eflags & VM_MASK) {
267 handle_vm86_trap(env, trapnr);
268 } else {
269 info.si_signo = SIGSEGV;
270 info.si_errno = 0;
271 info.si_code = TARGET_SI_KERNEL;
272 info._sifields._sigfault._addr = 0;
273 queue_signal(info.si_signo, &info);
274 }
275 break;
276 case EXCP06_ILLOP:
277 info.si_signo = SIGILL;
278 info.si_errno = 0;
279 info.si_code = TARGET_ILL_ILLOPN;
280 info._sifields._sigfault._addr = env->eip;
281 queue_signal(info.si_signo, &info);
282 break;
283 case EXCP_INTERRUPT:
284 /* just indicate that signals should be handled asap */
285 break;
286 case EXCP_DEBUG:
287 {
288 int sig;
289
290 sig = gdb_handlesig (env, TARGET_SIGTRAP);
291 if (sig)
292 {
293 info.si_signo = sig;
294 info.si_errno = 0;
295 info.si_code = TARGET_TRAP_BRKPT;
296 queue_signal(info.si_signo, &info);
297 }
298 }
299 break;
300 default:
301 pc = env->segs[R_CS].base + env->eip;
302 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
303 (long)pc, trapnr);
304 abort();
305 }
306 process_pending_signals(env);
307 }
308 }
309 #endif
310
311 #ifdef TARGET_ARM
312
313 /* XXX: find a better solution */
314 extern void tb_invalidate_page_range(target_ulong start, target_ulong end);
315
316 static void arm_cache_flush(target_ulong start, target_ulong last)
317 {
318 target_ulong addr, last1;
319
320 if (last < start)
321 return;
322 addr = start;
323 for(;;) {
324 last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
325 if (last1 > last)
326 last1 = last;
327 tb_invalidate_page_range(addr, last1 + 1);
328 if (last1 == last)
329 break;
330 addr = last1 + 1;
331 }
332 }
333
334 void cpu_loop(CPUARMState *env)
335 {
336 int trapnr;
337 unsigned int n, insn;
338 target_siginfo_t info;
339 uint32_t addr;
340
341 for(;;) {
342 trapnr = cpu_arm_exec(env);
343 switch(trapnr) {
344 case EXCP_UDEF:
345 {
346 TaskState *ts = env->opaque;
347 uint32_t opcode;
348
349 /* we handle the FPU emulation here, as Linux */
350 /* we get the opcode */
351 opcode = tget32(env->regs[15]);
352
353 if (EmulateAll(opcode, &ts->fpa, env) == 0) {
354 info.si_signo = SIGILL;
355 info.si_errno = 0;
356 info.si_code = TARGET_ILL_ILLOPN;
357 info._sifields._sigfault._addr = env->regs[15];
358 queue_signal(info.si_signo, &info);
359 } else {
360 /* increment PC */
361 env->regs[15] += 4;
362 }
363 }
364 break;
365 case EXCP_SWI:
366 case EXCP_BKPT:
367 {
368 env->eabi = 1;
369 /* system call */
370 if (trapnr == EXCP_BKPT) {
371 if (env->thumb) {
372 insn = tget16(env->regs[15]);
373 n = insn & 0xff;
374 env->regs[15] += 2;
375 } else {
376 insn = tget32(env->regs[15]);
377 n = (insn & 0xf) | ((insn >> 4) & 0xff0);
378 env->regs[15] += 4;
379 }
380 } else {
381 if (env->thumb) {
382 insn = tget16(env->regs[15] - 2);
383 n = insn & 0xff;
384 } else {
385 insn = tget32(env->regs[15] - 4);
386 n = insn & 0xffffff;
387 }
388 }
389
390 if (n == ARM_NR_cacheflush) {
391 arm_cache_flush(env->regs[0], env->regs[1]);
392 } else if (n == ARM_NR_semihosting
393 || n == ARM_NR_thumb_semihosting) {
394 env->regs[0] = do_arm_semihosting (env);
395 } else if (n == 0 || n >= ARM_SYSCALL_BASE
396 || (env->thumb && n == ARM_THUMB_SYSCALL)) {
397 /* linux syscall */
398 if (env->thumb || n == 0) {
399 n = env->regs[7];
400 } else {
401 n -= ARM_SYSCALL_BASE;
402 env->eabi = 0;
403 }
404 env->regs[0] = do_syscall(env,
405 n,
406 env->regs[0],
407 env->regs[1],
408 env->regs[2],
409 env->regs[3],
410 env->regs[4],
411 env->regs[5]);
412 } else {
413 goto error;
414 }
415 }
416 break;
417 case EXCP_INTERRUPT:
418 /* just indicate that signals should be handled asap */
419 break;
420 case EXCP_PREFETCH_ABORT:
421 addr = env->cp15.c6_data;
422 goto do_segv;
423 case EXCP_DATA_ABORT:
424 addr = env->cp15.c6_insn;
425 goto do_segv;
426 do_segv:
427 {
428 info.si_signo = SIGSEGV;
429 info.si_errno = 0;
430 /* XXX: check env->error_code */
431 info.si_code = TARGET_SEGV_MAPERR;
432 info._sifields._sigfault._addr = addr;
433 queue_signal(info.si_signo, &info);
434 }
435 break;
436 case EXCP_DEBUG:
437 {
438 int sig;
439
440 sig = gdb_handlesig (env, TARGET_SIGTRAP);
441 if (sig)
442 {
443 info.si_signo = sig;
444 info.si_errno = 0;
445 info.si_code = TARGET_TRAP_BRKPT;
446 queue_signal(info.si_signo, &info);
447 }
448 }
449 break;
450 default:
451 error:
452 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
453 trapnr);
454 cpu_dump_state(env, stderr, fprintf, 0);
455 abort();
456 }
457 process_pending_signals(env);
458 }
459 }
460
461 #endif
462
463 #ifdef TARGET_SPARC
464
465 //#define DEBUG_WIN
466
467 /* WARNING: dealing with register windows _is_ complicated. More info
468 can be found at http://www.sics.se/~psm/sparcstack.html */
469 static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
470 {
471 index = (index + cwp * 16) & (16 * NWINDOWS - 1);
472 /* wrap handling : if cwp is on the last window, then we use the
473 registers 'after' the end */
474 if (index < 8 && env->cwp == (NWINDOWS - 1))
475 index += (16 * NWINDOWS);
476 return index;
477 }
478
479 /* save the register window 'cwp1' */
480 static inline void save_window_offset(CPUSPARCState *env, int cwp1)
481 {
482 unsigned int i;
483 target_ulong sp_ptr;
484
485 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
486 #if defined(DEBUG_WIN)
487 printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n",
488 (int)sp_ptr, cwp1);
489 #endif
490 for(i = 0; i < 16; i++) {
491 tputl(sp_ptr, env->regbase[get_reg_index(env, cwp1, 8 + i)]);
492 sp_ptr += sizeof(target_ulong);
493 }
494 }
495
496 static void save_window(CPUSPARCState *env)
497 {
498 unsigned int new_wim;
499 new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) &
500 ((1LL << NWINDOWS) - 1);
501 save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
502 env->wim = new_wim;
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 }
526
527 static void flush_windows(CPUSPARCState *env)
528 {
529 int offset, cwp1;
530
531 offset = 1;
532 for(;;) {
533 /* if restore would invoke restore_window(), then we can stop */
534 cwp1 = (env->cwp + offset) & (NWINDOWS - 1);
535 if (env->wim & (1 << cwp1))
536 break;
537 save_window_offset(env, cwp1);
538 offset++;
539 }
540 /* set wim so that restore will reload the registers */
541 cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
542 env->wim = 1 << cwp1;
543 #if defined(DEBUG_WIN)
544 printf("flush_windows: nb=%d\n", offset - 1);
545 #endif
546 }
547
548 void cpu_loop (CPUSPARCState *env)
549 {
550 int trapnr, ret;
551 target_siginfo_t info;
552
553 while (1) {
554 trapnr = cpu_sparc_exec (env);
555
556 switch (trapnr) {
557 case 0x88:
558 case 0x90:
559 ret = do_syscall (env, env->gregs[1],
560 env->regwptr[0], env->regwptr[1],
561 env->regwptr[2], env->regwptr[3],
562 env->regwptr[4], env->regwptr[5]);
563 if ((unsigned int)ret >= (unsigned int)(-515)) {
564 env->psr |= PSR_CARRY;
565 ret = -ret;
566 } else {
567 env->psr &= ~PSR_CARRY;
568 }
569 env->regwptr[0] = ret;
570 /* next instruction */
571 env->pc = env->npc;
572 env->npc = env->npc + 4;
573 break;
574 case 0x83: /* flush windows */
575 flush_windows(env);
576 /* next instruction */
577 env->pc = env->npc;
578 env->npc = env->npc + 4;
579 break;
580 #ifndef TARGET_SPARC64
581 case TT_WIN_OVF: /* window overflow */
582 save_window(env);
583 break;
584 case TT_WIN_UNF: /* window underflow */
585 restore_window(env);
586 break;
587 case TT_TFAULT:
588 case TT_DFAULT:
589 {
590 info.si_signo = SIGSEGV;
591 info.si_errno = 0;
592 /* XXX: check env->error_code */
593 info.si_code = TARGET_SEGV_MAPERR;
594 info._sifields._sigfault._addr = env->mmuregs[4];
595 queue_signal(info.si_signo, &info);
596 }
597 break;
598 #else
599 // XXX
600 #endif
601 case 0x100: // XXX, why do we get these?
602 break;
603 case EXCP_DEBUG:
604 {
605 int sig;
606
607 sig = gdb_handlesig (env, TARGET_SIGTRAP);
608 if (sig)
609 {
610 info.si_signo = sig;
611 info.si_errno = 0;
612 info.si_code = TARGET_TRAP_BRKPT;
613 queue_signal(info.si_signo, &info);
614 }
615 }
616 break;
617 default:
618 printf ("Unhandled trap: 0x%x\n", trapnr);
619 cpu_dump_state(env, stderr, fprintf, 0);
620 exit (1);
621 }
622 process_pending_signals (env);
623 }
624 }
625
626 #endif
627
628 #ifdef TARGET_PPC
629
630 static inline uint64_t cpu_ppc_get_tb (CPUState *env)
631 {
632 /* TO FIX */
633 return 0;
634 }
635
636 uint32_t cpu_ppc_load_tbl (CPUState *env)
637 {
638 return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
639 }
640
641 uint32_t cpu_ppc_load_tbu (CPUState *env)
642 {
643 return cpu_ppc_get_tb(env) >> 32;
644 }
645
646 static void cpu_ppc_store_tb (CPUState *env, uint64_t value)
647 {
648 /* TO FIX */
649 }
650
651 void cpu_ppc_store_tbu (CPUState *env, uint32_t value)
652 {
653 cpu_ppc_store_tb(env, ((uint64_t)value << 32) | cpu_ppc_load_tbl(env));
654 }
655
656 void cpu_ppc_store_tbl (CPUState *env, uint32_t value)
657 {
658 cpu_ppc_store_tb(env, ((uint64_t)cpu_ppc_load_tbl(env) << 32) | value);
659 }
660
661 uint32_t cpu_ppc_load_decr (CPUState *env)
662 {
663 /* TO FIX */
664 return -1;
665 }
666
667 void cpu_ppc_store_decr (CPUState *env, uint32_t value)
668 {
669 /* TO FIX */
670 }
671
672 void cpu_loop(CPUPPCState *env)
673 {
674 target_siginfo_t info;
675 int trapnr;
676 uint32_t ret;
677
678 for(;;) {
679 trapnr = cpu_ppc_exec(env);
680 if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH &&
681 trapnr != EXCP_TRACE) {
682 if (loglevel > 0) {
683 cpu_dump_state(env, logfile, fprintf, 0);
684 }
685 }
686 switch(trapnr) {
687 case EXCP_NONE:
688 break;
689 case EXCP_SYSCALL_USER:
690 /* system call */
691 /* WARNING:
692 * PPC ABI uses overflow flag in cr0 to signal an error
693 * in syscalls.
694 */
695 #if 0
696 printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
697 env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
698 #endif
699 env->crf[0] &= ~0x1;
700 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
701 env->gpr[5], env->gpr[6], env->gpr[7],
702 env->gpr[8]);
703 if (ret > (uint32_t)(-515)) {
704 env->crf[0] |= 0x1;
705 ret = -ret;
706 }
707 env->gpr[3] = ret;
708 #if 0
709 printf("syscall returned 0x%08x (%d)\n", ret, ret);
710 #endif
711 break;
712 case EXCP_RESET:
713 /* Should not happen ! */
714 fprintf(stderr, "RESET asked... Stop emulation\n");
715 if (loglevel)
716 fprintf(logfile, "RESET asked... Stop emulation\n");
717 abort();
718 case EXCP_MACHINE_CHECK:
719 fprintf(stderr, "Machine check exeption... Stop emulation\n");
720 if (loglevel)
721 fprintf(logfile, "RESET asked... Stop emulation\n");
722 info.si_signo = TARGET_SIGBUS;
723 info.si_errno = 0;
724 info.si_code = TARGET_BUS_OBJERR;
725 info._sifields._sigfault._addr = env->nip - 4;
726 queue_signal(info.si_signo, &info);
727 case EXCP_DSI:
728 fprintf(stderr, "Invalid data memory access: 0x%08x\n",
729 env->spr[SPR_DAR]);
730 if (loglevel) {
731 fprintf(logfile, "Invalid data memory access: 0x%08x\n",
732 env->spr[SPR_DAR]);
733 }
734 switch (env->error_code & 0xFF000000) {
735 case 0x40000000:
736 info.si_signo = TARGET_SIGSEGV;
737 info.si_errno = 0;
738 info.si_code = TARGET_SEGV_MAPERR;
739 break;
740 case 0x04000000:
741 info.si_signo = TARGET_SIGILL;
742 info.si_errno = 0;
743 info.si_code = TARGET_ILL_ILLADR;
744 break;
745 case 0x08000000:
746 info.si_signo = TARGET_SIGSEGV;
747 info.si_errno = 0;
748 info.si_code = TARGET_SEGV_ACCERR;
749 break;
750 default:
751 /* Let's send a regular segfault... */
752 fprintf(stderr, "Invalid segfault errno (%02x)\n",
753 env->error_code);
754 if (loglevel) {
755 fprintf(logfile, "Invalid segfault errno (%02x)\n",
756 env->error_code);
757 }
758 info.si_signo = TARGET_SIGSEGV;
759 info.si_errno = 0;
760 info.si_code = TARGET_SEGV_MAPERR;
761 break;
762 }
763 info._sifields._sigfault._addr = env->nip;
764 queue_signal(info.si_signo, &info);
765 break;
766 case EXCP_ISI:
767 fprintf(stderr, "Invalid instruction fetch\n");
768 if (loglevel)
769 fprintf(logfile, "Invalid instruction fetch\n");
770 switch (env->error_code & 0xFF000000) {
771 case 0x40000000:
772 info.si_signo = TARGET_SIGSEGV;
773 info.si_errno = 0;
774 info.si_code = TARGET_SEGV_MAPERR;
775 break;
776 case 0x10000000:
777 case 0x08000000:
778 info.si_signo = TARGET_SIGSEGV;
779 info.si_errno = 0;
780 info.si_code = TARGET_SEGV_ACCERR;
781 break;
782 default:
783 /* Let's send a regular segfault... */
784 fprintf(stderr, "Invalid segfault errno (%02x)\n",
785 env->error_code);
786 if (loglevel) {
787 fprintf(logfile, "Invalid segfault errno (%02x)\n",
788 env->error_code);
789 }
790 info.si_signo = TARGET_SIGSEGV;
791 info.si_errno = 0;
792 info.si_code = TARGET_SEGV_MAPERR;
793 break;
794 }
795 info._sifields._sigfault._addr = env->nip - 4;
796 queue_signal(info.si_signo, &info);
797 break;
798 case EXCP_EXTERNAL:
799 /* Should not happen ! */
800 fprintf(stderr, "External interruption... Stop emulation\n");
801 if (loglevel)
802 fprintf(logfile, "External interruption... Stop emulation\n");
803 abort();
804 case EXCP_ALIGN:
805 fprintf(stderr, "Invalid unaligned memory access\n");
806 if (loglevel)
807 fprintf(logfile, "Invalid unaligned memory access\n");
808 info.si_signo = TARGET_SIGBUS;
809 info.si_errno = 0;
810 info.si_code = TARGET_BUS_ADRALN;
811 info._sifields._sigfault._addr = env->nip - 4;
812 queue_signal(info.si_signo, &info);
813 break;
814 case EXCP_PROGRAM:
815 switch (env->error_code & ~0xF) {
816 case EXCP_FP:
817 fprintf(stderr, "Program exception\n");
818 if (loglevel)
819 fprintf(logfile, "Program exception\n");
820 /* Set FX */
821 env->fpscr[7] |= 0x8;
822 /* Finally, update FEX */
823 if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
824 ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
825 env->fpscr[7] |= 0x4;
826 info.si_signo = TARGET_SIGFPE;
827 info.si_errno = 0;
828 switch (env->error_code & 0xF) {
829 case EXCP_FP_OX:
830 info.si_code = TARGET_FPE_FLTOVF;
831 break;
832 case EXCP_FP_UX:
833 info.si_code = TARGET_FPE_FLTUND;
834 break;
835 case EXCP_FP_ZX:
836 case EXCP_FP_VXZDZ:
837 info.si_code = TARGET_FPE_FLTDIV;
838 break;
839 case EXCP_FP_XX:
840 info.si_code = TARGET_FPE_FLTRES;
841 break;
842 case EXCP_FP_VXSOFT:
843 info.si_code = TARGET_FPE_FLTINV;
844 break;
845 case EXCP_FP_VXNAN:
846 case EXCP_FP_VXISI:
847 case EXCP_FP_VXIDI:
848 case EXCP_FP_VXIMZ:
849 case EXCP_FP_VXVC:
850 case EXCP_FP_VXSQRT:
851 case EXCP_FP_VXCVI:
852 info.si_code = TARGET_FPE_FLTSUB;
853 break;
854 default:
855 fprintf(stderr, "Unknown floating point exception "
856 "(%02x)\n", env->error_code);
857 if (loglevel) {
858 fprintf(logfile, "Unknown floating point exception "
859 "(%02x)\n", env->error_code & 0xF);
860 }
861 }
862 break;
863 case EXCP_INVAL:
864 fprintf(stderr, "Invalid instruction\n");
865 if (loglevel)
866 fprintf(logfile, "Invalid instruction\n");
867 info.si_signo = TARGET_SIGILL;
868 info.si_errno = 0;
869 switch (env->error_code & 0xF) {
870 case EXCP_INVAL_INVAL:
871 info.si_code = TARGET_ILL_ILLOPC;
872 break;
873 case EXCP_INVAL_LSWX:
874 info.si_code = TARGET_ILL_ILLOPN;
875 break;
876 case EXCP_INVAL_SPR:
877 info.si_code = TARGET_ILL_PRVREG;
878 break;
879 case EXCP_INVAL_FP:
880 info.si_code = TARGET_ILL_COPROC;
881 break;
882 default:
883 fprintf(stderr, "Unknown invalid operation (%02x)\n",
884 env->error_code & 0xF);
885 if (loglevel) {
886 fprintf(logfile, "Unknown invalid operation (%02x)\n",
887 env->error_code & 0xF);
888 }
889 info.si_code = TARGET_ILL_ILLADR;
890 break;
891 }
892 break;
893 case EXCP_PRIV:
894 fprintf(stderr, "Privilege violation\n");
895 if (loglevel)
896 fprintf(logfile, "Privilege violation\n");
897 info.si_signo = TARGET_SIGILL;
898 info.si_errno = 0;
899 switch (env->error_code & 0xF) {
900 case EXCP_PRIV_OPC:
901 info.si_code = TARGET_ILL_PRVOPC;
902 break;
903 case EXCP_PRIV_REG:
904 info.si_code = TARGET_ILL_PRVREG;
905 break;
906 default:
907 fprintf(stderr, "Unknown privilege violation (%02x)\n",
908 env->error_code & 0xF);
909 info.si_code = TARGET_ILL_PRVOPC;
910 break;
911 }
912 break;
913 case EXCP_TRAP:
914 fprintf(stderr, "Tried to call a TRAP\n");
915 if (loglevel)
916 fprintf(logfile, "Tried to call a TRAP\n");
917 abort();
918 default:
919 /* Should not happen ! */
920 fprintf(stderr, "Unknown program exception (%02x)\n",
921 env->error_code);
922 if (loglevel) {
923 fprintf(logfile, "Unknwon program exception (%02x)\n",
924 env->error_code);
925 }
926 abort();
927 }
928 info._sifields._sigfault._addr = env->nip - 4;
929 queue_signal(info.si_signo, &info);
930 break;
931 case EXCP_NO_FP:
932 fprintf(stderr, "No floating point allowed\n");
933 if (loglevel)
934 fprintf(logfile, "No floating point allowed\n");
935 info.si_signo = TARGET_SIGILL;
936 info.si_errno = 0;
937 info.si_code = TARGET_ILL_COPROC;
938 info._sifields._sigfault._addr = env->nip - 4;
939 queue_signal(info.si_signo, &info);
940 break;
941 case EXCP_DECR:
942 /* Should not happen ! */
943 fprintf(stderr, "Decrementer exception\n");
944 if (loglevel)
945 fprintf(logfile, "Decrementer exception\n");
946 abort();
947 case EXCP_TRACE:
948 /* Do nothing: we use this to trace execution */
949 break;
950 case EXCP_FP_ASSIST:
951 /* Should not happen ! */
952 fprintf(stderr, "Floating point assist exception\n");
953 if (loglevel)
954 fprintf(logfile, "Floating point assist exception\n");
955 abort();
956 case EXCP_MTMSR:
957 /* We reloaded the msr, just go on */
958 if (msr_pr == 0) {
959 fprintf(stderr, "Tried to go into supervisor mode !\n");
960 if (loglevel)
961 fprintf(logfile, "Tried to go into supervisor mode !\n");
962 abort();
963 }
964 break;
965 case EXCP_BRANCH:
966 /* We stopped because of a jump... */
967 break;
968 case EXCP_INTERRUPT:
969 /* Don't know why this should ever happen... */
970 break;
971 case EXCP_DEBUG:
972 {
973 int sig;
974
975 sig = gdb_handlesig (env, TARGET_SIGTRAP);
976 if (sig)
977 {
978 info.si_signo = sig;
979 info.si_errno = 0;
980 info.si_code = TARGET_TRAP_BRKPT;
981 queue_signal(info.si_signo, &info);
982 }
983 }
984 break;
985 default:
986 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
987 trapnr);
988 if (loglevel) {
989 fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - "
990 "0x%02x - aborting\n", trapnr, env->error_code);
991 }
992 abort();
993 }
994 process_pending_signals(env);
995 }
996 }
997 #endif
998
999 #ifdef TARGET_MIPS
1000
1001 #define MIPS_SYS(name, args) args,
1002
1003 static const uint8_t mips_syscall_args[] = {
1004 MIPS_SYS(sys_syscall , 0) /* 4000 */
1005 MIPS_SYS(sys_exit , 1)
1006 MIPS_SYS(sys_fork , 0)
1007 MIPS_SYS(sys_read , 3)
1008 MIPS_SYS(sys_write , 3)
1009 MIPS_SYS(sys_open , 3) /* 4005 */
1010 MIPS_SYS(sys_close , 1)
1011 MIPS_SYS(sys_waitpid , 3)
1012 MIPS_SYS(sys_creat , 2)
1013 MIPS_SYS(sys_link , 2)
1014 MIPS_SYS(sys_unlink , 1) /* 4010 */
1015 MIPS_SYS(sys_execve , 0)
1016 MIPS_SYS(sys_chdir , 1)
1017 MIPS_SYS(sys_time , 1)
1018 MIPS_SYS(sys_mknod , 3)
1019 MIPS_SYS(sys_chmod , 2) /* 4015 */
1020 MIPS_SYS(sys_lchown , 3)
1021 MIPS_SYS(sys_ni_syscall , 0)
1022 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1023 MIPS_SYS(sys_lseek , 3)
1024 MIPS_SYS(sys_getpid , 0) /* 4020 */
1025 MIPS_SYS(sys_mount , 5)
1026 MIPS_SYS(sys_oldumount , 1)
1027 MIPS_SYS(sys_setuid , 1)
1028 MIPS_SYS(sys_getuid , 0)
1029 MIPS_SYS(sys_stime , 1) /* 4025 */
1030 MIPS_SYS(sys_ptrace , 4)
1031 MIPS_SYS(sys_alarm , 1)
1032 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1033 MIPS_SYS(sys_pause , 0)
1034 MIPS_SYS(sys_utime , 2) /* 4030 */
1035 MIPS_SYS(sys_ni_syscall , 0)
1036 MIPS_SYS(sys_ni_syscall , 0)
1037 MIPS_SYS(sys_access , 2)
1038 MIPS_SYS(sys_nice , 1)
1039 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1040 MIPS_SYS(sys_sync , 0)
1041 MIPS_SYS(sys_kill , 2)
1042 MIPS_SYS(sys_rename , 2)
1043 MIPS_SYS(sys_mkdir , 2)
1044 MIPS_SYS(sys_rmdir , 1) /* 4040 */
1045 MIPS_SYS(sys_dup , 1)
1046 MIPS_SYS(sys_pipe , 0)
1047 MIPS_SYS(sys_times , 1)
1048 MIPS_SYS(sys_ni_syscall , 0)
1049 MIPS_SYS(sys_brk , 1) /* 4045 */
1050 MIPS_SYS(sys_setgid , 1)
1051 MIPS_SYS(sys_getgid , 0)
1052 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1053 MIPS_SYS(sys_geteuid , 0)
1054 MIPS_SYS(sys_getegid , 0) /* 4050 */
1055 MIPS_SYS(sys_acct , 0)
1056 MIPS_SYS(sys_umount , 2)
1057 MIPS_SYS(sys_ni_syscall , 0)
1058 MIPS_SYS(sys_ioctl , 3)
1059 MIPS_SYS(sys_fcntl , 3) /* 4055 */
1060 MIPS_SYS(sys_ni_syscall , 2)
1061 MIPS_SYS(sys_setpgid , 2)
1062 MIPS_SYS(sys_ni_syscall , 0)
1063 MIPS_SYS(sys_olduname , 1)
1064 MIPS_SYS(sys_umask , 1) /* 4060 */
1065 MIPS_SYS(sys_chroot , 1)
1066 MIPS_SYS(sys_ustat , 2)
1067 MIPS_SYS(sys_dup2 , 2)
1068 MIPS_SYS(sys_getppid , 0)
1069 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1070 MIPS_SYS(sys_setsid , 0)
1071 MIPS_SYS(sys_sigaction , 3)
1072 MIPS_SYS(sys_sgetmask , 0)
1073 MIPS_SYS(sys_ssetmask , 1)
1074 MIPS_SYS(sys_setreuid , 2) /* 4070 */
1075 MIPS_SYS(sys_setregid , 2)
1076 MIPS_SYS(sys_sigsuspend , 0)
1077 MIPS_SYS(sys_sigpending , 1)
1078 MIPS_SYS(sys_sethostname , 2)
1079 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1080 MIPS_SYS(sys_getrlimit , 2)
1081 MIPS_SYS(sys_getrusage , 2)
1082 MIPS_SYS(sys_gettimeofday, 2)
1083 MIPS_SYS(sys_settimeofday, 2)
1084 MIPS_SYS(sys_getgroups , 2) /* 4080 */
1085 MIPS_SYS(sys_setgroups , 2)
1086 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1087 MIPS_SYS(sys_symlink , 2)
1088 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1089 MIPS_SYS(sys_readlink , 3) /* 4085 */
1090 MIPS_SYS(sys_uselib , 1)
1091 MIPS_SYS(sys_swapon , 2)
1092 MIPS_SYS(sys_reboot , 3)
1093 MIPS_SYS(old_readdir , 3)
1094 MIPS_SYS(old_mmap , 6) /* 4090 */
1095 MIPS_SYS(sys_munmap , 2)
1096 MIPS_SYS(sys_truncate , 2)
1097 MIPS_SYS(sys_ftruncate , 2)
1098 MIPS_SYS(sys_fchmod , 2)
1099 MIPS_SYS(sys_fchown , 3) /* 4095 */
1100 MIPS_SYS(sys_getpriority , 2)
1101 MIPS_SYS(sys_setpriority , 3)
1102 MIPS_SYS(sys_ni_syscall , 0)
1103 MIPS_SYS(sys_statfs , 2)
1104 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1105 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1106 MIPS_SYS(sys_socketcall , 2)
1107 MIPS_SYS(sys_syslog , 3)
1108 MIPS_SYS(sys_setitimer , 3)
1109 MIPS_SYS(sys_getitimer , 2) /* 4105 */
1110 MIPS_SYS(sys_newstat , 2)
1111 MIPS_SYS(sys_newlstat , 2)
1112 MIPS_SYS(sys_newfstat , 2)
1113 MIPS_SYS(sys_uname , 1)
1114 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1115 MIPS_SYS(sys_vhangup , 0)
1116 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1117 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1118 MIPS_SYS(sys_wait4 , 4)
1119 MIPS_SYS(sys_swapoff , 1) /* 4115 */
1120 MIPS_SYS(sys_sysinfo , 1)
1121 MIPS_SYS(sys_ipc , 6)
1122 MIPS_SYS(sys_fsync , 1)
1123 MIPS_SYS(sys_sigreturn , 0)
1124 MIPS_SYS(sys_clone , 0) /* 4120 */
1125 MIPS_SYS(sys_setdomainname, 2)
1126 MIPS_SYS(sys_newuname , 1)
1127 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1128 MIPS_SYS(sys_adjtimex , 1)
1129 MIPS_SYS(sys_mprotect , 3) /* 4125 */
1130 MIPS_SYS(sys_sigprocmask , 3)
1131 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1132 MIPS_SYS(sys_init_module , 5)
1133 MIPS_SYS(sys_delete_module, 1)
1134 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1135 MIPS_SYS(sys_quotactl , 0)
1136 MIPS_SYS(sys_getpgid , 1)
1137 MIPS_SYS(sys_fchdir , 1)
1138 MIPS_SYS(sys_bdflush , 2)
1139 MIPS_SYS(sys_sysfs , 3) /* 4135 */
1140 MIPS_SYS(sys_personality , 1)
1141 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1142 MIPS_SYS(sys_setfsuid , 1)
1143 MIPS_SYS(sys_setfsgid , 1)
1144 MIPS_SYS(sys_llseek , 5) /* 4140 */
1145 MIPS_SYS(sys_getdents , 3)
1146 MIPS_SYS(sys_select , 5)
1147 MIPS_SYS(sys_flock , 2)
1148 MIPS_SYS(sys_msync , 3)
1149 MIPS_SYS(sys_readv , 3) /* 4145 */
1150 MIPS_SYS(sys_writev , 3)
1151 MIPS_SYS(sys_cacheflush , 3)
1152 MIPS_SYS(sys_cachectl , 3)
1153 MIPS_SYS(sys_sysmips , 4)
1154 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1155 MIPS_SYS(sys_getsid , 1)
1156 MIPS_SYS(sys_fdatasync , 0)
1157 MIPS_SYS(sys_sysctl , 1)
1158 MIPS_SYS(sys_mlock , 2)
1159 MIPS_SYS(sys_munlock , 2) /* 4155 */
1160 MIPS_SYS(sys_mlockall , 1)
1161 MIPS_SYS(sys_munlockall , 0)
1162 MIPS_SYS(sys_sched_setparam, 2)
1163 MIPS_SYS(sys_sched_getparam, 2)
1164 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1165 MIPS_SYS(sys_sched_getscheduler, 1)
1166 MIPS_SYS(sys_sched_yield , 0)
1167 MIPS_SYS(sys_sched_get_priority_max, 1)
1168 MIPS_SYS(sys_sched_get_priority_min, 1)
1169 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1170 MIPS_SYS(sys_nanosleep, 2)
1171 MIPS_SYS(sys_mremap , 4)
1172 MIPS_SYS(sys_accept , 3)
1173 MIPS_SYS(sys_bind , 3)
1174 MIPS_SYS(sys_connect , 3) /* 4170 */
1175 MIPS_SYS(sys_getpeername , 3)
1176 MIPS_SYS(sys_getsockname , 3)
1177 MIPS_SYS(sys_getsockopt , 5)
1178 MIPS_SYS(sys_listen , 2)
1179 MIPS_SYS(sys_recv , 4) /* 4175 */
1180 MIPS_SYS(sys_recvfrom , 6)
1181 MIPS_SYS(sys_recvmsg , 3)
1182 MIPS_SYS(sys_send , 4)
1183 MIPS_SYS(sys_sendmsg , 3)
1184 MIPS_SYS(sys_sendto , 6) /* 4180 */
1185 MIPS_SYS(sys_setsockopt , 5)
1186 MIPS_SYS(sys_shutdown , 2)
1187 MIPS_SYS(sys_socket , 3)
1188 MIPS_SYS(sys_socketpair , 4)
1189 MIPS_SYS(sys_setresuid , 3) /* 4185 */
1190 MIPS_SYS(sys_getresuid , 3)
1191 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1192 MIPS_SYS(sys_poll , 3)
1193 MIPS_SYS(sys_nfsservctl , 3)
1194 MIPS_SYS(sys_setresgid , 3) /* 4190 */
1195 MIPS_SYS(sys_getresgid , 3)
1196 MIPS_SYS(sys_prctl , 5)
1197 MIPS_SYS(sys_rt_sigreturn, 0)
1198 MIPS_SYS(sys_rt_sigaction, 4)
1199 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1200 MIPS_SYS(sys_rt_sigpending, 2)
1201 MIPS_SYS(sys_rt_sigtimedwait, 4)
1202 MIPS_SYS(sys_rt_sigqueueinfo, 3)
1203 MIPS_SYS(sys_rt_sigsuspend, 0)
1204 MIPS_SYS(sys_pread64 , 6) /* 4200 */
1205 MIPS_SYS(sys_pwrite64 , 6)
1206 MIPS_SYS(sys_chown , 3)
1207 MIPS_SYS(sys_getcwd , 2)
1208 MIPS_SYS(sys_capget , 2)
1209 MIPS_SYS(sys_capset , 2) /* 4205 */
1210 MIPS_SYS(sys_sigaltstack , 0)
1211 MIPS_SYS(sys_sendfile , 4)
1212 MIPS_SYS(sys_ni_syscall , 0)
1213 MIPS_SYS(sys_ni_syscall , 0)
1214 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
1215 MIPS_SYS(sys_truncate64 , 4)
1216 MIPS_SYS(sys_ftruncate64 , 4)
1217 MIPS_SYS(sys_stat64 , 2)
1218 MIPS_SYS(sys_lstat64 , 2)
1219 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
1220 MIPS_SYS(sys_pivot_root , 2)
1221 MIPS_SYS(sys_mincore , 3)
1222 MIPS_SYS(sys_madvise , 3)
1223 MIPS_SYS(sys_getdents64 , 3)
1224 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
1225 MIPS_SYS(sys_ni_syscall , 0)
1226 MIPS_SYS(sys_gettid , 0)
1227 MIPS_SYS(sys_readahead , 5)
1228 MIPS_SYS(sys_setxattr , 5)
1229 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
1230 MIPS_SYS(sys_fsetxattr , 5)
1231 MIPS_SYS(sys_getxattr , 4)
1232 MIPS_SYS(sys_lgetxattr , 4)
1233 MIPS_SYS(sys_fgetxattr , 4)
1234 MIPS_SYS(sys_listxattr , 3) /* 4230 */
1235 MIPS_SYS(sys_llistxattr , 3)
1236 MIPS_SYS(sys_flistxattr , 3)
1237 MIPS_SYS(sys_removexattr , 2)
1238 MIPS_SYS(sys_lremovexattr, 2)
1239 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
1240 MIPS_SYS(sys_tkill , 2)
1241 MIPS_SYS(sys_sendfile64 , 5)
1242 MIPS_SYS(sys_futex , 2)
1243 MIPS_SYS(sys_sched_setaffinity, 3)
1244 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
1245 MIPS_SYS(sys_io_setup , 2)
1246 MIPS_SYS(sys_io_destroy , 1)
1247 MIPS_SYS(sys_io_getevents, 5)
1248 MIPS_SYS(sys_io_submit , 3)
1249 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
1250 MIPS_SYS(sys_exit_group , 1)
1251 MIPS_SYS(sys_lookup_dcookie, 3)
1252 MIPS_SYS(sys_epoll_create, 1)
1253 MIPS_SYS(sys_epoll_ctl , 4)
1254 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
1255 MIPS_SYS(sys_remap_file_pages, 5)
1256 MIPS_SYS(sys_set_tid_address, 1)
1257 MIPS_SYS(sys_restart_syscall, 0)
1258 MIPS_SYS(sys_fadvise64_64, 7)
1259 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
1260 MIPS_SYS(sys_fstatfs64 , 2)
1261 MIPS_SYS(sys_timer_create, 3)
1262 MIPS_SYS(sys_timer_settime, 4)
1263 MIPS_SYS(sys_timer_gettime, 2)
1264 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
1265 MIPS_SYS(sys_timer_delete, 1)
1266 MIPS_SYS(sys_clock_settime, 2)
1267 MIPS_SYS(sys_clock_gettime, 2)
1268 MIPS_SYS(sys_clock_getres, 2)
1269 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
1270 MIPS_SYS(sys_tgkill , 3)
1271 MIPS_SYS(sys_utimes , 2)
1272 MIPS_SYS(sys_mbind , 4)
1273 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
1274 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
1275 MIPS_SYS(sys_mq_open , 4)
1276 MIPS_SYS(sys_mq_unlink , 1)
1277 MIPS_SYS(sys_mq_timedsend, 5)
1278 MIPS_SYS(sys_mq_timedreceive, 5)
1279 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
1280 MIPS_SYS(sys_mq_getsetattr, 3)
1281 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
1282 MIPS_SYS(sys_waitid , 4)
1283 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
1284 MIPS_SYS(sys_add_key , 5)
1285 MIPS_SYS(sys_request_key , 4)
1286 MIPS_SYS(sys_keyctl , 5)
1287 };
1288
1289 #undef MIPS_SYS
1290
1291 void cpu_loop(CPUMIPSState *env)
1292 {
1293 target_siginfo_t info;
1294 int trapnr, ret, nb_args;
1295 unsigned int syscall_num;
1296 target_ulong arg5, arg6, sp_reg;
1297
1298 for(;;) {
1299 trapnr = cpu_mips_exec(env);
1300 switch(trapnr) {
1301 case EXCP_SYSCALL:
1302 {
1303 syscall_num = env->gpr[2] - 4000;
1304 if (syscall_num >= sizeof(mips_syscall_args)) {
1305 ret = -ENOSYS;
1306 } else {
1307 nb_args = mips_syscall_args[syscall_num];
1308 if (nb_args >= 5) {
1309 sp_reg = env->gpr[29];
1310 /* these arguments are taken from the stack */
1311 arg5 = tgetl(sp_reg + 16);
1312 if (nb_args >= 6) {
1313 arg6 = tgetl(sp_reg + 20);
1314 } else {
1315 arg6 = 0;
1316 }
1317 } else {
1318 arg5 = 0;
1319 arg6 = 0;
1320 }
1321 ret = do_syscall(env,
1322 env->gpr[2],
1323 env->gpr[4],
1324 env->gpr[5],
1325 env->gpr[6],
1326 env->gpr[7],
1327 arg5,
1328 arg6);
1329 }
1330 env->PC += 4;
1331 if ((unsigned int)ret >= (unsigned int)(-1133)) {
1332 env->gpr[7] = 1; /* error flag */
1333 ret = -ret;
1334 env->gpr[0] = ret;
1335 env->gpr[2] = ret;
1336 } else {
1337 env->gpr[7] = 0; /* error flag */
1338 env->gpr[2] = ret;
1339 }
1340 }
1341 break;
1342 case EXCP_CpU:
1343 case EXCP_RI:
1344 info.si_signo = TARGET_SIGILL;
1345 info.si_errno = 0;
1346 info.si_code = 0;
1347 queue_signal(info.si_signo, &info);
1348 break;
1349 default:
1350 // error:
1351 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1352 trapnr);
1353 cpu_dump_state(env, stderr, fprintf, 0);
1354 abort();
1355 }
1356 process_pending_signals(env);
1357 }
1358 }
1359 #endif
1360
1361 #ifdef TARGET_SH4
1362 void cpu_loop (CPUState *env)
1363 {
1364 int trapnr, ret;
1365 target_siginfo_t info;
1366
1367 while (1) {
1368 trapnr = cpu_sh4_exec (env);
1369
1370 switch (trapnr) {
1371 case 0x160:
1372 ret = do_syscall(env,
1373 env->gregs[3],
1374 env->gregs[4],
1375 env->gregs[5],
1376 env->gregs[6],
1377 env->gregs[7],
1378 env->gregs[0],
1379 0);
1380 env->gregs[0] = ret;
1381 env->pc += 2;
1382 break;
1383 case EXCP_DEBUG:
1384 {
1385 int sig;
1386
1387 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1388 if (sig)
1389 {
1390 info.si_signo = sig;
1391 info.si_errno = 0;
1392 info.si_code = TARGET_TRAP_BRKPT;
1393 queue_signal(info.si_signo, &info);
1394 }
1395 }
1396 break;
1397 default:
1398 printf ("Unhandled trap: 0x%x\n", trapnr);
1399 cpu_dump_state(env, stderr, fprintf, 0);
1400 exit (1);
1401 }
1402 process_pending_signals (env);
1403 }
1404 }
1405 #endif
1406
1407 void usage(void)
1408 {
1409 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2005 Fabrice Bellard\n"
1410 "usage: qemu-" TARGET_ARCH " [-h] [-g] [-d opts] [-L path] [-s size] program [arguments...]\n"
1411 "Linux CPU emulator (compiled for %s emulation)\n"
1412 "\n"
1413 "-h print this help\n"
1414 "-g port wait gdb connection to port\n"
1415 "-L path set the elf interpreter prefix (default=%s)\n"
1416 "-s size set the stack size in bytes (default=%ld)\n"
1417 "\n"
1418 "debug options:\n"
1419 #ifdef USE_CODE_COPY
1420 "-no-code-copy disable code copy acceleration\n"
1421 #endif
1422 "-d options activate log (logfile=%s)\n"
1423 "-p pagesize set the host page size to 'pagesize'\n",
1424 TARGET_ARCH,
1425 interp_prefix,
1426 x86_stack_size,
1427 DEBUG_LOGFILE);
1428 _exit(1);
1429 }
1430
1431 /* XXX: currently only used for async signals (see signal.c) */
1432 CPUState *global_env;
1433
1434 /* used to free thread contexts */
1435 TaskState *first_task_state;
1436
1437 int main(int argc, char **argv)
1438 {
1439 const char *filename;
1440 struct target_pt_regs regs1, *regs = &regs1;
1441 struct image_info info1, *info = &info1;
1442 TaskState ts1, *ts = &ts1;
1443 CPUState *env;
1444 int optind;
1445 const char *r;
1446 int gdbstub_port = 0;
1447
1448 if (argc <= 1)
1449 usage();
1450
1451 /* init debug */
1452 cpu_set_log_filename(DEBUG_LOGFILE);
1453
1454 optind = 1;
1455 for(;;) {
1456 if (optind >= argc)
1457 break;
1458 r = argv[optind];
1459 if (r[0] != '-')
1460 break;
1461 optind++;
1462 r++;
1463 if (!strcmp(r, "-")) {
1464 break;
1465 } else if (!strcmp(r, "d")) {
1466 int mask;
1467 CPULogItem *item;
1468
1469 if (optind >= argc)
1470 break;
1471
1472 r = argv[optind++];
1473 mask = cpu_str_to_log_mask(r);
1474 if (!mask) {
1475 printf("Log items (comma separated):\n");
1476 for(item = cpu_log_items; item->mask != 0; item++) {
1477 printf("%-10s %s\n", item->name, item->help);
1478 }
1479 exit(1);
1480 }
1481 cpu_set_log(mask);
1482 } else if (!strcmp(r, "s")) {
1483 r = argv[optind++];
1484 x86_stack_size = strtol(r, (char **)&r, 0);
1485 if (x86_stack_size <= 0)
1486 usage();
1487 if (*r == 'M')
1488 x86_stack_size *= 1024 * 1024;
1489 else if (*r == 'k' || *r == 'K')
1490 x86_stack_size *= 1024;
1491 } else if (!strcmp(r, "L")) {
1492 interp_prefix = argv[optind++];
1493 } else if (!strcmp(r, "p")) {
1494 qemu_host_page_size = atoi(argv[optind++]);
1495 if (qemu_host_page_size == 0 ||
1496 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
1497 fprintf(stderr, "page size must be a power of two\n");
1498 exit(1);
1499 }
1500 } else if (!strcmp(r, "g")) {
1501 gdbstub_port = atoi(argv[optind++]);
1502 } else if (!strcmp(r, "r")) {
1503 qemu_uname_release = argv[optind++];
1504 } else
1505 #ifdef USE_CODE_COPY
1506 if (!strcmp(r, "no-code-copy")) {
1507 code_copy_enabled = 0;
1508 } else
1509 #endif
1510 {
1511 usage();
1512 }
1513 }
1514 if (optind >= argc)
1515 usage();
1516 filename = argv[optind];
1517
1518 /* Zero out regs */
1519 memset(regs, 0, sizeof(struct target_pt_regs));
1520
1521 /* Zero out image_info */
1522 memset(info, 0, sizeof(struct image_info));
1523
1524 /* Scan interp_prefix dir for replacement files. */
1525 init_paths(interp_prefix);
1526
1527 /* NOTE: we need to init the CPU at this stage to get
1528 qemu_host_page_size */
1529 env = cpu_init();
1530 global_env = env;
1531
1532 if (loader_exec(filename, argv+optind, environ, regs, info) != 0) {
1533 printf("Error loading %s\n", filename);
1534 _exit(1);
1535 }
1536
1537 if (loglevel) {
1538 page_dump(logfile);
1539
1540 fprintf(logfile, "start_brk 0x%08lx\n" , info->start_brk);
1541 fprintf(logfile, "end_code 0x%08lx\n" , info->end_code);
1542 fprintf(logfile, "start_code 0x%08lx\n" , info->start_code);
1543 fprintf(logfile, "start_data 0x%08lx\n" , info->start_data);
1544 fprintf(logfile, "end_data 0x%08lx\n" , info->end_data);
1545 fprintf(logfile, "start_stack 0x%08lx\n" , info->start_stack);
1546 fprintf(logfile, "brk 0x%08lx\n" , info->brk);
1547 fprintf(logfile, "entry 0x%08lx\n" , info->entry);
1548 }
1549
1550 target_set_brk(info->brk);
1551 syscall_init();
1552 signal_init();
1553
1554 /* build Task State */
1555 memset(ts, 0, sizeof(TaskState));
1556 env->opaque = ts;
1557 ts->used = 1;
1558 ts->info = info;
1559 env->user_mode_only = 1;
1560
1561 #if defined(TARGET_I386)
1562 cpu_x86_set_cpl(env, 3);
1563
1564 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
1565 env->hflags |= HF_PE_MASK;
1566 if (env->cpuid_features & CPUID_SSE) {
1567 env->cr[4] |= CR4_OSFXSR_MASK;
1568 env->hflags |= HF_OSFXSR_MASK;
1569 }
1570
1571 /* flags setup : we activate the IRQs by default as in user mode */
1572 env->eflags |= IF_MASK;
1573
1574 /* linux register setup */
1575 env->regs[R_EAX] = regs->eax;
1576 env->regs[R_EBX] = regs->ebx;
1577 env->regs[R_ECX] = regs->ecx;
1578 env->regs[R_EDX] = regs->edx;
1579 env->regs[R_ESI] = regs->esi;
1580 env->regs[R_EDI] = regs->edi;
1581 env->regs[R_EBP] = regs->ebp;
1582 env->regs[R_ESP] = regs->esp;
1583 env->eip = regs->eip;
1584
1585 /* linux interrupt setup */
1586 env->idt.base = h2g(idt_table);
1587 env->idt.limit = sizeof(idt_table) - 1;
1588 set_idt(0, 0);
1589 set_idt(1, 0);
1590 set_idt(2, 0);
1591 set_idt(3, 3);
1592 set_idt(4, 3);
1593 set_idt(5, 3);
1594 set_idt(6, 0);
1595 set_idt(7, 0);
1596 set_idt(8, 0);
1597 set_idt(9, 0);
1598 set_idt(10, 0);
1599 set_idt(11, 0);
1600 set_idt(12, 0);
1601 set_idt(13, 0);
1602 set_idt(14, 0);
1603 set_idt(15, 0);
1604 set_idt(16, 0);
1605 set_idt(17, 0);
1606 set_idt(18, 0);
1607 set_idt(19, 0);
1608 set_idt(0x80, 3);
1609
1610 /* linux segment setup */
1611 env->gdt.base = h2g(gdt_table);
1612 env->gdt.limit = sizeof(gdt_table) - 1;
1613 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
1614 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1615 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
1616 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
1617 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1618 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
1619 cpu_x86_load_seg(env, R_CS, __USER_CS);
1620 cpu_x86_load_seg(env, R_DS, __USER_DS);
1621 cpu_x86_load_seg(env, R_ES, __USER_DS);
1622 cpu_x86_load_seg(env, R_SS, __USER_DS);
1623 cpu_x86_load_seg(env, R_FS, __USER_DS);
1624 cpu_x86_load_seg(env, R_GS, __USER_DS);
1625
1626 #elif defined(TARGET_ARM)
1627 {
1628 int i;
1629 cpu_arm_set_model(env, ARM_CPUID_ARM1026);
1630 cpsr_write(env, regs->uregs[16], 0xffffffff);
1631 for(i = 0; i < 16; i++) {
1632 env->regs[i] = regs->uregs[i];
1633 }
1634 ts->stack_base = info->start_stack;
1635 ts->heap_base = info->brk;
1636 /* This will be filled in on the first SYS_HEAPINFO call. */
1637 ts->heap_limit = 0;
1638 }
1639 #elif defined(TARGET_SPARC)
1640 {
1641 int i;
1642 env->pc = regs->pc;
1643 env->npc = regs->npc;
1644 env->y = regs->y;
1645 for(i = 0; i < 8; i++)
1646 env->gregs[i] = regs->u_regs[i];
1647 for(i = 0; i < 8; i++)
1648 env->regwptr[i] = regs->u_regs[i + 8];
1649 }
1650 #elif defined(TARGET_PPC)
1651 {
1652 ppc_def_t *def;
1653 int i;
1654
1655 /* Choose and initialise CPU */
1656 /* XXX: CPU model (or PVR) should be provided on command line */
1657 // ppc_find_by_name("750gx", &def);
1658 // ppc_find_by_name("750fx", &def);
1659 // ppc_find_by_name("750p", &def);
1660 ppc_find_by_name("750", &def);
1661 // ppc_find_by_name("G3", &def);
1662 // ppc_find_by_name("604r", &def);
1663 // ppc_find_by_name("604e", &def);
1664 // ppc_find_by_name("604", &def);
1665 if (def == NULL) {
1666 cpu_abort(env,
1667 "Unable to find PowerPC CPU definition\n");
1668 }
1669 cpu_ppc_register(env, def);
1670
1671 for (i = 0; i < 32; i++) {
1672 if (i != 12 && i != 6 && i != 13)
1673 env->msr[i] = (regs->msr >> i) & 1;
1674 }
1675 env->nip = regs->nip;
1676 for(i = 0; i < 32; i++) {
1677 env->gpr[i] = regs->gpr[i];
1678 }
1679 }
1680 #elif defined(TARGET_MIPS)
1681 {
1682 int i;
1683
1684 for(i = 0; i < 32; i++) {
1685 env->gpr[i] = regs->regs[i];
1686 }
1687 env->PC = regs->cp0_epc;
1688 #ifdef MIPS_USES_FPU
1689 env->CP0_Status |= (1 << CP0St_CU1);
1690 #endif
1691 }
1692 #elif defined(TARGET_SH4)
1693 {
1694 int i;
1695
1696 for(i = 0; i < 16; i++) {
1697 env->gregs[i] = regs->regs[i];
1698 }
1699 env->pc = regs->pc;
1700 }
1701 #else
1702 #error unsupported target CPU
1703 #endif
1704
1705 if (gdbstub_port) {
1706 gdbserver_start (gdbstub_port);
1707 gdb_handlesig(env, 0);
1708 }
1709 cpu_loop(env);
1710 /* never exits */
1711 return 0;
1712 }
Samsung s3c2440 and arm920t support for the mini2440 dev board