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1.1 root 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:
38: #if defined(__i386__) && !defined(CONFIG_STATIC)
39: /* Force usage of an ELF interpreter even if it is an ELF shared
40: object ! */
41: const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2";
42: #endif
43:
44: /* for recent libc, we add these dummy symbols which are not declared
45: when generating a linked object (bug in ld ?) */
46: #if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined(CONFIG_STATIC)
47: long __preinit_array_start[0];
48: long __preinit_array_end[0];
49: long __init_array_start[0];
50: long __init_array_end[0];
51: long __fini_array_start[0];
52: long __fini_array_end[0];
53: #endif
54:
55: /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
56: we allocate a bigger stack. Need a better solution, for example
57: by remapping the process stack directly at the right place */
58: unsigned long x86_stack_size = 512 * 1024;
59:
60: void gemu_log(const char *fmt, ...)
61: {
62: va_list ap;
63:
64: va_start(ap, fmt);
65: vfprintf(stderr, fmt, ap);
66: va_end(ap);
67: }
68:
69: void cpu_outb(CPUState *env, int addr, int val)
70: {
71: fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val);
72: }
73:
74: void cpu_outw(CPUState *env, int addr, int val)
75: {
76: fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val);
77: }
78:
79: void cpu_outl(CPUState *env, int addr, int val)
80: {
81: fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val);
82: }
83:
84: int cpu_inb(CPUState *env, int addr)
85: {
86: fprintf(stderr, "inb: port=0x%04x\n", addr);
87: return 0;
88: }
89:
90: int cpu_inw(CPUState *env, int addr)
91: {
92: fprintf(stderr, "inw: port=0x%04x\n", addr);
93: return 0;
94: }
95:
96: int cpu_inl(CPUState *env, int addr)
97: {
98: fprintf(stderr, "inl: port=0x%04x\n", addr);
99: return 0;
100: }
101:
102: int cpu_get_pic_interrupt(CPUState *env)
103: {
104: return -1;
105: }
106:
107: /* timers for rdtsc */
108:
109: #if defined(__i386__)
110:
111: int64_t cpu_get_real_ticks(void)
112: {
113: int64_t val;
114: asm volatile ("rdtsc" : "=A" (val));
115: return val;
116: }
117:
118: #elif defined(__x86_64__)
119:
120: int64_t cpu_get_real_ticks(void)
121: {
122: uint32_t low,high;
123: int64_t val;
124: asm volatile("rdtsc" : "=a" (low), "=d" (high));
125: val = high;
126: val <<= 32;
127: val |= low;
128: return val;
129: }
130:
131: #else
132:
133: static uint64_t emu_time;
134:
135: int64_t cpu_get_real_ticks(void)
136: {
137: return emu_time++;
138: }
139:
140: #endif
141:
142: #ifdef TARGET_I386
143: /***********************************************************/
144: /* CPUX86 core interface */
145:
146: uint64_t cpu_get_tsc(CPUX86State *env)
147: {
148: return cpu_get_real_ticks();
149: }
150:
151: static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
152: int flags)
153: {
154: unsigned int e1, e2;
155: e1 = (addr << 16) | (limit & 0xffff);
156: e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
157: e2 |= flags;
158: stl((uint8_t *)ptr, e1);
159: stl((uint8_t *)ptr + 4, e2);
160: }
161:
162: static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
163: unsigned long addr, unsigned int sel)
164: {
165: unsigned int e1, e2;
166: e1 = (addr & 0xffff) | (sel << 16);
167: e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
168: stl((uint8_t *)ptr, e1);
169: stl((uint8_t *)ptr + 4, e2);
170: }
171:
172: uint64_t gdt_table[6];
173: uint64_t idt_table[256];
174:
175: /* only dpl matters as we do only user space emulation */
176: static void set_idt(int n, unsigned int dpl)
177: {
178: set_gate(idt_table + n, 0, dpl, 0, 0);
179: }
180:
181: void cpu_loop(CPUX86State *env)
182: {
183: int trapnr;
184: target_ulong pc;
185: target_siginfo_t info;
186:
187: for(;;) {
188: trapnr = cpu_x86_exec(env);
189: switch(trapnr) {
190: case 0x80:
191: /* linux syscall */
192: env->regs[R_EAX] = do_syscall(env,
193: env->regs[R_EAX],
194: env->regs[R_EBX],
195: env->regs[R_ECX],
196: env->regs[R_EDX],
197: env->regs[R_ESI],
198: env->regs[R_EDI],
199: env->regs[R_EBP]);
200: break;
201: case EXCP0B_NOSEG:
202: case EXCP0C_STACK:
203: info.si_signo = SIGBUS;
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: break;
209: case EXCP0D_GPF:
210: if (env->eflags & VM_MASK) {
211: handle_vm86_fault(env);
212: } else {
213: info.si_signo = SIGSEGV;
214: info.si_errno = 0;
215: info.si_code = TARGET_SI_KERNEL;
216: info._sifields._sigfault._addr = 0;
217: queue_signal(info.si_signo, &info);
218: }
219: break;
220: case EXCP0E_PAGE:
221: info.si_signo = SIGSEGV;
222: info.si_errno = 0;
223: if (!(env->error_code & 1))
224: info.si_code = TARGET_SEGV_MAPERR;
225: else
226: info.si_code = TARGET_SEGV_ACCERR;
227: info._sifields._sigfault._addr = env->cr[2];
228: queue_signal(info.si_signo, &info);
229: break;
230: case EXCP00_DIVZ:
231: if (env->eflags & VM_MASK) {
232: handle_vm86_trap(env, trapnr);
233: } else {
234: /* division by zero */
235: info.si_signo = SIGFPE;
236: info.si_errno = 0;
237: info.si_code = TARGET_FPE_INTDIV;
238: info._sifields._sigfault._addr = env->eip;
239: queue_signal(info.si_signo, &info);
240: }
241: break;
242: case EXCP01_SSTP:
243: case EXCP03_INT3:
244: if (env->eflags & VM_MASK) {
245: handle_vm86_trap(env, trapnr);
246: } else {
247: info.si_signo = SIGTRAP;
248: info.si_errno = 0;
249: if (trapnr == EXCP01_SSTP) {
250: info.si_code = TARGET_TRAP_BRKPT;
251: info._sifields._sigfault._addr = env->eip;
252: } else {
253: info.si_code = TARGET_SI_KERNEL;
254: info._sifields._sigfault._addr = 0;
255: }
256: queue_signal(info.si_signo, &info);
257: }
258: break;
259: case EXCP04_INTO:
260: case EXCP05_BOUND:
261: if (env->eflags & VM_MASK) {
262: handle_vm86_trap(env, trapnr);
263: } else {
264: info.si_signo = SIGSEGV;
265: info.si_errno = 0;
266: info.si_code = TARGET_SI_KERNEL;
267: info._sifields._sigfault._addr = 0;
268: queue_signal(info.si_signo, &info);
269: }
270: break;
271: case EXCP06_ILLOP:
272: info.si_signo = SIGILL;
273: info.si_errno = 0;
274: info.si_code = TARGET_ILL_ILLOPN;
275: info._sifields._sigfault._addr = env->eip;
276: queue_signal(info.si_signo, &info);
277: break;
278: case EXCP_INTERRUPT:
279: /* just indicate that signals should be handled asap */
280: break;
281: case EXCP_DEBUG:
282: {
283: int sig;
284:
285: sig = gdb_handlesig (env, TARGET_SIGTRAP);
286: if (sig)
287: {
288: info.si_signo = sig;
289: info.si_errno = 0;
290: info.si_code = TARGET_TRAP_BRKPT;
291: queue_signal(info.si_signo, &info);
292: }
293: }
294: break;
295: default:
296: pc = env->segs[R_CS].base + env->eip;
297: fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
298: (long)pc, trapnr);
299: abort();
300: }
301: process_pending_signals(env);
302: }
303: }
304: #endif
305:
306: #ifdef TARGET_ARM
307:
308: /* XXX: find a better solution */
309: extern void tb_invalidate_page_range(target_ulong start, target_ulong end);
310:
311: static void arm_cache_flush(target_ulong start, target_ulong last)
312: {
313: target_ulong addr, last1;
314:
315: if (last < start)
316: return;
317: addr = start;
318: for(;;) {
319: last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
320: if (last1 > last)
321: last1 = last;
322: tb_invalidate_page_range(addr, last1 + 1);
323: if (last1 == last)
324: break;
325: addr = last1 + 1;
326: }
327: }
328:
329: void cpu_loop(CPUARMState *env)
330: {
331: int trapnr;
332: unsigned int n, insn;
333: target_siginfo_t info;
1.1.1.2 ! root 334: uint32_t addr;
1.1 root 335:
336: for(;;) {
337: trapnr = cpu_arm_exec(env);
338: switch(trapnr) {
339: case EXCP_UDEF:
340: {
341: TaskState *ts = env->opaque;
342: uint32_t opcode;
343:
344: /* we handle the FPU emulation here, as Linux */
345: /* we get the opcode */
346: opcode = ldl_raw((uint8_t *)env->regs[15]);
347:
348: if (EmulateAll(opcode, &ts->fpa, env->regs) == 0) {
349: info.si_signo = SIGILL;
350: info.si_errno = 0;
351: info.si_code = TARGET_ILL_ILLOPN;
352: info._sifields._sigfault._addr = env->regs[15];
353: queue_signal(info.si_signo, &info);
354: } else {
355: /* increment PC */
356: env->regs[15] += 4;
357: }
358: }
359: break;
360: case EXCP_SWI:
361: {
362: /* system call */
363: if (env->thumb) {
364: insn = lduw((void *)(env->regs[15] - 2));
365: n = insn & 0xff;
366: } else {
367: insn = ldl((void *)(env->regs[15] - 4));
368: n = insn & 0xffffff;
369: }
370:
371: if (n == ARM_NR_cacheflush) {
372: arm_cache_flush(env->regs[0], env->regs[1]);
373: } else if (n == ARM_NR_semihosting
374: || n == ARM_NR_thumb_semihosting) {
375: env->regs[0] = do_arm_semihosting (env);
376: } else if (n >= ARM_SYSCALL_BASE
377: || (env->thumb && n == ARM_THUMB_SYSCALL)) {
378: /* linux syscall */
379: if (env->thumb) {
380: n = env->regs[7];
381: } else {
382: n -= ARM_SYSCALL_BASE;
383: }
384: env->regs[0] = do_syscall(env,
385: n,
386: env->regs[0],
387: env->regs[1],
388: env->regs[2],
389: env->regs[3],
390: env->regs[4],
391: env->regs[5]);
392: } else {
393: goto error;
394: }
395: }
396: break;
397: case EXCP_INTERRUPT:
398: /* just indicate that signals should be handled asap */
399: break;
400: case EXCP_PREFETCH_ABORT:
1.1.1.2 ! root 401: addr = env->cp15.c6_data;
! 402: goto do_segv;
1.1 root 403: case EXCP_DATA_ABORT:
1.1.1.2 ! root 404: addr = env->cp15.c6_insn;
! 405: goto do_segv;
! 406: do_segv:
1.1 root 407: {
408: info.si_signo = SIGSEGV;
409: info.si_errno = 0;
410: /* XXX: check env->error_code */
411: info.si_code = TARGET_SEGV_MAPERR;
1.1.1.2 ! root 412: info._sifields._sigfault._addr = addr;
1.1 root 413: queue_signal(info.si_signo, &info);
414: }
415: break;
416: case EXCP_DEBUG:
417: {
418: int sig;
419:
420: sig = gdb_handlesig (env, TARGET_SIGTRAP);
421: if (sig)
422: {
423: info.si_signo = sig;
424: info.si_errno = 0;
425: info.si_code = TARGET_TRAP_BRKPT;
426: queue_signal(info.si_signo, &info);
427: }
428: }
429: break;
430: default:
431: error:
432: fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
433: trapnr);
434: cpu_dump_state(env, stderr, fprintf, 0);
435: abort();
436: }
437: process_pending_signals(env);
438: }
439: }
440:
441: #endif
442:
443: #ifdef TARGET_SPARC
444:
445: //#define DEBUG_WIN
446:
447: /* WARNING: dealing with register windows _is_ complicated. More info
448: can be found at http://www.sics.se/~psm/sparcstack.html */
449: static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
450: {
451: index = (index + cwp * 16) & (16 * NWINDOWS - 1);
452: /* wrap handling : if cwp is on the last window, then we use the
453: registers 'after' the end */
454: if (index < 8 && env->cwp == (NWINDOWS - 1))
455: index += (16 * NWINDOWS);
456: return index;
457: }
458:
459: /* save the register window 'cwp1' */
460: static inline void save_window_offset(CPUSPARCState *env, int cwp1)
461: {
462: unsigned int i;
463: uint32_t *sp_ptr;
464:
465: sp_ptr = (uint32_t *)(env->regbase[get_reg_index(env, cwp1, 6)]);
466: #if defined(DEBUG_WIN)
467: printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n",
468: (int)sp_ptr, cwp1);
469: #endif
470: for(i = 0; i < 16; i++) {
471: put_user(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
472: sp_ptr++;
473: }
474: }
475:
476: static void save_window(CPUSPARCState *env)
477: {
478: unsigned int new_wim;
479: new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) &
480: ((1LL << NWINDOWS) - 1);
481: save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
482: env->wim = new_wim;
483: }
484:
485: static void restore_window(CPUSPARCState *env)
486: {
487: unsigned int new_wim, i, cwp1;
488: uint32_t *sp_ptr, reg;
489:
490: new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) &
491: ((1LL << NWINDOWS) - 1);
492:
493: /* restore the invalid window */
494: cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
495: sp_ptr = (uint32_t *)(env->regbase[get_reg_index(env, cwp1, 6)]);
496: #if defined(DEBUG_WIN)
497: printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n",
498: (int)sp_ptr, cwp1);
499: #endif
500: for(i = 0; i < 16; i++) {
501: get_user(reg, sp_ptr);
502: env->regbase[get_reg_index(env, cwp1, 8 + i)] = reg;
503: sp_ptr++;
504: }
505: env->wim = new_wim;
506: }
507:
508: static void flush_windows(CPUSPARCState *env)
509: {
510: int offset, cwp1;
511:
512: offset = 1;
513: for(;;) {
514: /* if restore would invoke restore_window(), then we can stop */
515: cwp1 = (env->cwp + offset) & (NWINDOWS - 1);
516: if (env->wim & (1 << cwp1))
517: break;
518: save_window_offset(env, cwp1);
519: offset++;
520: }
521: /* set wim so that restore will reload the registers */
522: cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
523: env->wim = 1 << cwp1;
524: #if defined(DEBUG_WIN)
525: printf("flush_windows: nb=%d\n", offset - 1);
526: #endif
527: }
528:
529: void cpu_loop (CPUSPARCState *env)
530: {
531: int trapnr, ret;
532: target_siginfo_t info;
533:
534: while (1) {
535: trapnr = cpu_sparc_exec (env);
536:
537: switch (trapnr) {
538: case 0x88:
539: case 0x90:
540: ret = do_syscall (env, env->gregs[1],
541: env->regwptr[0], env->regwptr[1],
542: env->regwptr[2], env->regwptr[3],
543: env->regwptr[4], env->regwptr[5]);
544: if ((unsigned int)ret >= (unsigned int)(-515)) {
545: env->psr |= PSR_CARRY;
546: ret = -ret;
547: } else {
548: env->psr &= ~PSR_CARRY;
549: }
550: env->regwptr[0] = ret;
551: /* next instruction */
552: env->pc = env->npc;
553: env->npc = env->npc + 4;
554: break;
555: case 0x83: /* flush windows */
556: flush_windows(env);
557: /* next instruction */
558: env->pc = env->npc;
559: env->npc = env->npc + 4;
560: break;
561: #ifndef TARGET_SPARC64
562: case TT_WIN_OVF: /* window overflow */
563: save_window(env);
564: break;
565: case TT_WIN_UNF: /* window underflow */
566: restore_window(env);
567: break;
568: case TT_TFAULT:
569: case TT_DFAULT:
570: {
571: info.si_signo = SIGSEGV;
572: info.si_errno = 0;
573: /* XXX: check env->error_code */
574: info.si_code = TARGET_SEGV_MAPERR;
575: info._sifields._sigfault._addr = env->mmuregs[4];
576: queue_signal(info.si_signo, &info);
577: }
578: break;
579: #else
580: // XXX
581: #endif
582: case 0x100: // XXX, why do we get these?
583: break;
584: case EXCP_DEBUG:
585: {
586: int sig;
587:
588: sig = gdb_handlesig (env, TARGET_SIGTRAP);
589: if (sig)
590: {
591: info.si_signo = sig;
592: info.si_errno = 0;
593: info.si_code = TARGET_TRAP_BRKPT;
594: queue_signal(info.si_signo, &info);
595: }
596: }
597: break;
598: default:
599: printf ("Unhandled trap: 0x%x\n", trapnr);
600: cpu_dump_state(env, stderr, fprintf, 0);
601: exit (1);
602: }
603: process_pending_signals (env);
604: }
605: }
606:
607: #endif
608:
609: #ifdef TARGET_PPC
610:
611: static inline uint64_t cpu_ppc_get_tb (CPUState *env)
612: {
613: /* TO FIX */
614: return 0;
615: }
616:
617: uint32_t cpu_ppc_load_tbl (CPUState *env)
618: {
619: return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
620: }
621:
622: uint32_t cpu_ppc_load_tbu (CPUState *env)
623: {
624: return cpu_ppc_get_tb(env) >> 32;
625: }
626:
627: static void cpu_ppc_store_tb (CPUState *env, uint64_t value)
628: {
629: /* TO FIX */
630: }
631:
632: void cpu_ppc_store_tbu (CPUState *env, uint32_t value)
633: {
634: cpu_ppc_store_tb(env, ((uint64_t)value << 32) | cpu_ppc_load_tbl(env));
635: }
636:
637: void cpu_ppc_store_tbl (CPUState *env, uint32_t value)
638: {
639: cpu_ppc_store_tb(env, ((uint64_t)cpu_ppc_load_tbl(env) << 32) | value);
640: }
641:
642: uint32_t cpu_ppc_load_decr (CPUState *env)
643: {
644: /* TO FIX */
645: return -1;
646: }
647:
648: void cpu_ppc_store_decr (CPUState *env, uint32_t value)
649: {
650: /* TO FIX */
651: }
652:
653: void cpu_loop(CPUPPCState *env)
654: {
655: target_siginfo_t info;
656: int trapnr;
657: uint32_t ret;
658:
659: for(;;) {
660: trapnr = cpu_ppc_exec(env);
661: if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH &&
662: trapnr != EXCP_TRACE) {
663: if (loglevel > 0) {
664: cpu_dump_state(env, logfile, fprintf, 0);
665: }
666: }
667: switch(trapnr) {
668: case EXCP_NONE:
669: break;
670: case EXCP_SYSCALL_USER:
671: /* system call */
672: /* WARNING:
673: * PPC ABI uses overflow flag in cr0 to signal an error
674: * in syscalls.
675: */
676: #if 0
677: printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
678: env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
679: #endif
680: env->crf[0] &= ~0x1;
681: ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
682: env->gpr[5], env->gpr[6], env->gpr[7],
683: env->gpr[8]);
684: if (ret > (uint32_t)(-515)) {
685: env->crf[0] |= 0x1;
686: ret = -ret;
687: }
688: env->gpr[3] = ret;
689: #if 0
690: printf("syscall returned 0x%08x (%d)\n", ret, ret);
691: #endif
692: break;
693: case EXCP_RESET:
694: /* Should not happen ! */
695: fprintf(stderr, "RESET asked... Stop emulation\n");
696: if (loglevel)
697: fprintf(logfile, "RESET asked... Stop emulation\n");
698: abort();
699: case EXCP_MACHINE_CHECK:
700: fprintf(stderr, "Machine check exeption... Stop emulation\n");
701: if (loglevel)
702: fprintf(logfile, "RESET asked... Stop emulation\n");
703: info.si_signo = TARGET_SIGBUS;
704: info.si_errno = 0;
705: info.si_code = TARGET_BUS_OBJERR;
706: info._sifields._sigfault._addr = env->nip - 4;
707: queue_signal(info.si_signo, &info);
708: case EXCP_DSI:
709: fprintf(stderr, "Invalid data memory access: 0x%08x\n",
710: env->spr[SPR_DAR]);
711: if (loglevel) {
712: fprintf(logfile, "Invalid data memory access: 0x%08x\n",
713: env->spr[SPR_DAR]);
714: }
715: switch (env->error_code & 0xFF000000) {
716: case 0x40000000:
717: info.si_signo = TARGET_SIGSEGV;
718: info.si_errno = 0;
719: info.si_code = TARGET_SEGV_MAPERR;
720: break;
721: case 0x04000000:
722: info.si_signo = TARGET_SIGILL;
723: info.si_errno = 0;
724: info.si_code = TARGET_ILL_ILLADR;
725: break;
726: case 0x08000000:
727: info.si_signo = TARGET_SIGSEGV;
728: info.si_errno = 0;
729: info.si_code = TARGET_SEGV_ACCERR;
730: break;
731: default:
732: /* Let's send a regular segfault... */
733: fprintf(stderr, "Invalid segfault errno (%02x)\n",
734: env->error_code);
735: if (loglevel) {
736: fprintf(logfile, "Invalid segfault errno (%02x)\n",
737: env->error_code);
738: }
739: info.si_signo = TARGET_SIGSEGV;
740: info.si_errno = 0;
741: info.si_code = TARGET_SEGV_MAPERR;
742: break;
743: }
744: info._sifields._sigfault._addr = env->nip;
745: queue_signal(info.si_signo, &info);
746: break;
747: case EXCP_ISI:
748: fprintf(stderr, "Invalid instruction fetch\n");
749: if (loglevel)
750: fprintf(logfile, "Invalid instruction fetch\n");
751: switch (env->error_code & 0xFF000000) {
752: case 0x40000000:
753: info.si_signo = TARGET_SIGSEGV;
754: info.si_errno = 0;
755: info.si_code = TARGET_SEGV_MAPERR;
756: break;
757: case 0x10000000:
758: case 0x08000000:
759: info.si_signo = TARGET_SIGSEGV;
760: info.si_errno = 0;
761: info.si_code = TARGET_SEGV_ACCERR;
762: break;
763: default:
764: /* Let's send a regular segfault... */
765: fprintf(stderr, "Invalid segfault errno (%02x)\n",
766: env->error_code);
767: if (loglevel) {
768: fprintf(logfile, "Invalid segfault errno (%02x)\n",
769: env->error_code);
770: }
771: info.si_signo = TARGET_SIGSEGV;
772: info.si_errno = 0;
773: info.si_code = TARGET_SEGV_MAPERR;
774: break;
775: }
776: info._sifields._sigfault._addr = env->nip - 4;
777: queue_signal(info.si_signo, &info);
778: break;
779: case EXCP_EXTERNAL:
780: /* Should not happen ! */
781: fprintf(stderr, "External interruption... Stop emulation\n");
782: if (loglevel)
783: fprintf(logfile, "External interruption... Stop emulation\n");
784: abort();
785: case EXCP_ALIGN:
786: fprintf(stderr, "Invalid unaligned memory access\n");
787: if (loglevel)
788: fprintf(logfile, "Invalid unaligned memory access\n");
789: info.si_signo = TARGET_SIGBUS;
790: info.si_errno = 0;
791: info.si_code = TARGET_BUS_ADRALN;
792: info._sifields._sigfault._addr = env->nip - 4;
793: queue_signal(info.si_signo, &info);
794: break;
795: case EXCP_PROGRAM:
796: switch (env->error_code & ~0xF) {
797: case EXCP_FP:
798: fprintf(stderr, "Program exception\n");
799: if (loglevel)
800: fprintf(logfile, "Program exception\n");
801: /* Set FX */
802: env->fpscr[7] |= 0x8;
803: /* Finally, update FEX */
804: if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
805: ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
806: env->fpscr[7] |= 0x4;
807: info.si_signo = TARGET_SIGFPE;
808: info.si_errno = 0;
809: switch (env->error_code & 0xF) {
810: case EXCP_FP_OX:
811: info.si_code = TARGET_FPE_FLTOVF;
812: break;
813: case EXCP_FP_UX:
814: info.si_code = TARGET_FPE_FLTUND;
815: break;
816: case EXCP_FP_ZX:
817: case EXCP_FP_VXZDZ:
818: info.si_code = TARGET_FPE_FLTDIV;
819: break;
820: case EXCP_FP_XX:
821: info.si_code = TARGET_FPE_FLTRES;
822: break;
823: case EXCP_FP_VXSOFT:
824: info.si_code = TARGET_FPE_FLTINV;
825: break;
826: case EXCP_FP_VXNAN:
827: case EXCP_FP_VXISI:
828: case EXCP_FP_VXIDI:
829: case EXCP_FP_VXIMZ:
830: case EXCP_FP_VXVC:
831: case EXCP_FP_VXSQRT:
832: case EXCP_FP_VXCVI:
833: info.si_code = TARGET_FPE_FLTSUB;
834: break;
835: default:
836: fprintf(stderr, "Unknown floating point exception "
837: "(%02x)\n", env->error_code);
838: if (loglevel) {
839: fprintf(logfile, "Unknown floating point exception "
840: "(%02x)\n", env->error_code & 0xF);
841: }
842: }
843: break;
844: case EXCP_INVAL:
845: fprintf(stderr, "Invalid instruction\n");
846: if (loglevel)
847: fprintf(logfile, "Invalid instruction\n");
848: info.si_signo = TARGET_SIGILL;
849: info.si_errno = 0;
850: switch (env->error_code & 0xF) {
851: case EXCP_INVAL_INVAL:
852: info.si_code = TARGET_ILL_ILLOPC;
853: break;
854: case EXCP_INVAL_LSWX:
855: info.si_code = TARGET_ILL_ILLOPN;
856: break;
857: case EXCP_INVAL_SPR:
858: info.si_code = TARGET_ILL_PRVREG;
859: break;
860: case EXCP_INVAL_FP:
861: info.si_code = TARGET_ILL_COPROC;
862: break;
863: default:
864: fprintf(stderr, "Unknown invalid operation (%02x)\n",
865: env->error_code & 0xF);
866: if (loglevel) {
867: fprintf(logfile, "Unknown invalid operation (%02x)\n",
868: env->error_code & 0xF);
869: }
870: info.si_code = TARGET_ILL_ILLADR;
871: break;
872: }
873: break;
874: case EXCP_PRIV:
875: fprintf(stderr, "Privilege violation\n");
876: if (loglevel)
877: fprintf(logfile, "Privilege violation\n");
878: info.si_signo = TARGET_SIGILL;
879: info.si_errno = 0;
880: switch (env->error_code & 0xF) {
881: case EXCP_PRIV_OPC:
882: info.si_code = TARGET_ILL_PRVOPC;
883: break;
884: case EXCP_PRIV_REG:
885: info.si_code = TARGET_ILL_PRVREG;
886: break;
887: default:
888: fprintf(stderr, "Unknown privilege violation (%02x)\n",
889: env->error_code & 0xF);
890: info.si_code = TARGET_ILL_PRVOPC;
891: break;
892: }
893: break;
894: case EXCP_TRAP:
895: fprintf(stderr, "Tried to call a TRAP\n");
896: if (loglevel)
897: fprintf(logfile, "Tried to call a TRAP\n");
898: abort();
899: default:
900: /* Should not happen ! */
901: fprintf(stderr, "Unknown program exception (%02x)\n",
902: env->error_code);
903: if (loglevel) {
904: fprintf(logfile, "Unknwon program exception (%02x)\n",
905: env->error_code);
906: }
907: abort();
908: }
909: info._sifields._sigfault._addr = env->nip - 4;
910: queue_signal(info.si_signo, &info);
911: break;
912: case EXCP_NO_FP:
913: fprintf(stderr, "No floating point allowed\n");
914: if (loglevel)
915: fprintf(logfile, "No floating point allowed\n");
916: info.si_signo = TARGET_SIGILL;
917: info.si_errno = 0;
918: info.si_code = TARGET_ILL_COPROC;
919: info._sifields._sigfault._addr = env->nip - 4;
920: queue_signal(info.si_signo, &info);
921: break;
922: case EXCP_DECR:
923: /* Should not happen ! */
924: fprintf(stderr, "Decrementer exception\n");
925: if (loglevel)
926: fprintf(logfile, "Decrementer exception\n");
927: abort();
928: case EXCP_TRACE:
929: /* Do nothing: we use this to trace execution */
930: break;
931: case EXCP_FP_ASSIST:
932: /* Should not happen ! */
933: fprintf(stderr, "Floating point assist exception\n");
934: if (loglevel)
935: fprintf(logfile, "Floating point assist exception\n");
936: abort();
937: case EXCP_MTMSR:
938: /* We reloaded the msr, just go on */
939: if (msr_pr == 0) {
940: fprintf(stderr, "Tried to go into supervisor mode !\n");
941: if (loglevel)
942: fprintf(logfile, "Tried to go into supervisor mode !\n");
943: abort();
944: }
945: break;
946: case EXCP_BRANCH:
947: /* We stopped because of a jump... */
948: break;
949: case EXCP_INTERRUPT:
950: /* Don't know why this should ever happen... */
951: break;
952: case EXCP_DEBUG:
953: {
954: int sig;
955:
956: sig = gdb_handlesig (env, TARGET_SIGTRAP);
957: if (sig)
958: {
959: info.si_signo = sig;
960: info.si_errno = 0;
961: info.si_code = TARGET_TRAP_BRKPT;
962: queue_signal(info.si_signo, &info);
963: }
964: }
965: break;
966: default:
967: fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
968: trapnr);
969: if (loglevel) {
970: fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - "
971: "0x%02x - aborting\n", trapnr, env->error_code);
972: }
973: abort();
974: }
975: process_pending_signals(env);
976: }
977: }
978: #endif
979:
1.1.1.2 ! root 980: #ifdef TARGET_MIPS
! 981:
! 982: #define MIPS_SYS(name, args) args,
! 983:
! 984: static const uint8_t mips_syscall_args[] = {
! 985: MIPS_SYS(sys_syscall , 0) /* 4000 */
! 986: MIPS_SYS(sys_exit , 1)
! 987: MIPS_SYS(sys_fork , 0)
! 988: MIPS_SYS(sys_read , 3)
! 989: MIPS_SYS(sys_write , 3)
! 990: MIPS_SYS(sys_open , 3) /* 4005 */
! 991: MIPS_SYS(sys_close , 1)
! 992: MIPS_SYS(sys_waitpid , 3)
! 993: MIPS_SYS(sys_creat , 2)
! 994: MIPS_SYS(sys_link , 2)
! 995: MIPS_SYS(sys_unlink , 1) /* 4010 */
! 996: MIPS_SYS(sys_execve , 0)
! 997: MIPS_SYS(sys_chdir , 1)
! 998: MIPS_SYS(sys_time , 1)
! 999: MIPS_SYS(sys_mknod , 3)
! 1000: MIPS_SYS(sys_chmod , 2) /* 4015 */
! 1001: MIPS_SYS(sys_lchown , 3)
! 1002: MIPS_SYS(sys_ni_syscall , 0)
! 1003: MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
! 1004: MIPS_SYS(sys_lseek , 3)
! 1005: MIPS_SYS(sys_getpid , 0) /* 4020 */
! 1006: MIPS_SYS(sys_mount , 5)
! 1007: MIPS_SYS(sys_oldumount , 1)
! 1008: MIPS_SYS(sys_setuid , 1)
! 1009: MIPS_SYS(sys_getuid , 0)
! 1010: MIPS_SYS(sys_stime , 1) /* 4025 */
! 1011: MIPS_SYS(sys_ptrace , 4)
! 1012: MIPS_SYS(sys_alarm , 1)
! 1013: MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
! 1014: MIPS_SYS(sys_pause , 0)
! 1015: MIPS_SYS(sys_utime , 2) /* 4030 */
! 1016: MIPS_SYS(sys_ni_syscall , 0)
! 1017: MIPS_SYS(sys_ni_syscall , 0)
! 1018: MIPS_SYS(sys_access , 2)
! 1019: MIPS_SYS(sys_nice , 1)
! 1020: MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
! 1021: MIPS_SYS(sys_sync , 0)
! 1022: MIPS_SYS(sys_kill , 2)
! 1023: MIPS_SYS(sys_rename , 2)
! 1024: MIPS_SYS(sys_mkdir , 2)
! 1025: MIPS_SYS(sys_rmdir , 1) /* 4040 */
! 1026: MIPS_SYS(sys_dup , 1)
! 1027: MIPS_SYS(sys_pipe , 0)
! 1028: MIPS_SYS(sys_times , 1)
! 1029: MIPS_SYS(sys_ni_syscall , 0)
! 1030: MIPS_SYS(sys_brk , 1) /* 4045 */
! 1031: MIPS_SYS(sys_setgid , 1)
! 1032: MIPS_SYS(sys_getgid , 0)
! 1033: MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
! 1034: MIPS_SYS(sys_geteuid , 0)
! 1035: MIPS_SYS(sys_getegid , 0) /* 4050 */
! 1036: MIPS_SYS(sys_acct , 0)
! 1037: MIPS_SYS(sys_umount , 2)
! 1038: MIPS_SYS(sys_ni_syscall , 0)
! 1039: MIPS_SYS(sys_ioctl , 3)
! 1040: MIPS_SYS(sys_fcntl , 3) /* 4055 */
! 1041: MIPS_SYS(sys_ni_syscall , 2)
! 1042: MIPS_SYS(sys_setpgid , 2)
! 1043: MIPS_SYS(sys_ni_syscall , 0)
! 1044: MIPS_SYS(sys_olduname , 1)
! 1045: MIPS_SYS(sys_umask , 1) /* 4060 */
! 1046: MIPS_SYS(sys_chroot , 1)
! 1047: MIPS_SYS(sys_ustat , 2)
! 1048: MIPS_SYS(sys_dup2 , 2)
! 1049: MIPS_SYS(sys_getppid , 0)
! 1050: MIPS_SYS(sys_getpgrp , 0) /* 4065 */
! 1051: MIPS_SYS(sys_setsid , 0)
! 1052: MIPS_SYS(sys_sigaction , 3)
! 1053: MIPS_SYS(sys_sgetmask , 0)
! 1054: MIPS_SYS(sys_ssetmask , 1)
! 1055: MIPS_SYS(sys_setreuid , 2) /* 4070 */
! 1056: MIPS_SYS(sys_setregid , 2)
! 1057: MIPS_SYS(sys_sigsuspend , 0)
! 1058: MIPS_SYS(sys_sigpending , 1)
! 1059: MIPS_SYS(sys_sethostname , 2)
! 1060: MIPS_SYS(sys_setrlimit , 2) /* 4075 */
! 1061: MIPS_SYS(sys_getrlimit , 2)
! 1062: MIPS_SYS(sys_getrusage , 2)
! 1063: MIPS_SYS(sys_gettimeofday, 2)
! 1064: MIPS_SYS(sys_settimeofday, 2)
! 1065: MIPS_SYS(sys_getgroups , 2) /* 4080 */
! 1066: MIPS_SYS(sys_setgroups , 2)
! 1067: MIPS_SYS(sys_ni_syscall , 0) /* old_select */
! 1068: MIPS_SYS(sys_symlink , 2)
! 1069: MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
! 1070: MIPS_SYS(sys_readlink , 3) /* 4085 */
! 1071: MIPS_SYS(sys_uselib , 1)
! 1072: MIPS_SYS(sys_swapon , 2)
! 1073: MIPS_SYS(sys_reboot , 3)
! 1074: MIPS_SYS(old_readdir , 3)
! 1075: MIPS_SYS(old_mmap , 6) /* 4090 */
! 1076: MIPS_SYS(sys_munmap , 2)
! 1077: MIPS_SYS(sys_truncate , 2)
! 1078: MIPS_SYS(sys_ftruncate , 2)
! 1079: MIPS_SYS(sys_fchmod , 2)
! 1080: MIPS_SYS(sys_fchown , 3) /* 4095 */
! 1081: MIPS_SYS(sys_getpriority , 2)
! 1082: MIPS_SYS(sys_setpriority , 3)
! 1083: MIPS_SYS(sys_ni_syscall , 0)
! 1084: MIPS_SYS(sys_statfs , 2)
! 1085: MIPS_SYS(sys_fstatfs , 2) /* 4100 */
! 1086: MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
! 1087: MIPS_SYS(sys_socketcall , 2)
! 1088: MIPS_SYS(sys_syslog , 3)
! 1089: MIPS_SYS(sys_setitimer , 3)
! 1090: MIPS_SYS(sys_getitimer , 2) /* 4105 */
! 1091: MIPS_SYS(sys_newstat , 2)
! 1092: MIPS_SYS(sys_newlstat , 2)
! 1093: MIPS_SYS(sys_newfstat , 2)
! 1094: MIPS_SYS(sys_uname , 1)
! 1095: MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
! 1096: MIPS_SYS(sys_vhangup , 0)
! 1097: MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
! 1098: MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
! 1099: MIPS_SYS(sys_wait4 , 4)
! 1100: MIPS_SYS(sys_swapoff , 1) /* 4115 */
! 1101: MIPS_SYS(sys_sysinfo , 1)
! 1102: MIPS_SYS(sys_ipc , 6)
! 1103: MIPS_SYS(sys_fsync , 1)
! 1104: MIPS_SYS(sys_sigreturn , 0)
! 1105: MIPS_SYS(sys_clone , 0) /* 4120 */
! 1106: MIPS_SYS(sys_setdomainname, 2)
! 1107: MIPS_SYS(sys_newuname , 1)
! 1108: MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
! 1109: MIPS_SYS(sys_adjtimex , 1)
! 1110: MIPS_SYS(sys_mprotect , 3) /* 4125 */
! 1111: MIPS_SYS(sys_sigprocmask , 3)
! 1112: MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
! 1113: MIPS_SYS(sys_init_module , 5)
! 1114: MIPS_SYS(sys_delete_module, 1)
! 1115: MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
! 1116: MIPS_SYS(sys_quotactl , 0)
! 1117: MIPS_SYS(sys_getpgid , 1)
! 1118: MIPS_SYS(sys_fchdir , 1)
! 1119: MIPS_SYS(sys_bdflush , 2)
! 1120: MIPS_SYS(sys_sysfs , 3) /* 4135 */
! 1121: MIPS_SYS(sys_personality , 1)
! 1122: MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
! 1123: MIPS_SYS(sys_setfsuid , 1)
! 1124: MIPS_SYS(sys_setfsgid , 1)
! 1125: MIPS_SYS(sys_llseek , 5) /* 4140 */
! 1126: MIPS_SYS(sys_getdents , 3)
! 1127: MIPS_SYS(sys_select , 5)
! 1128: MIPS_SYS(sys_flock , 2)
! 1129: MIPS_SYS(sys_msync , 3)
! 1130: MIPS_SYS(sys_readv , 3) /* 4145 */
! 1131: MIPS_SYS(sys_writev , 3)
! 1132: MIPS_SYS(sys_cacheflush , 3)
! 1133: MIPS_SYS(sys_cachectl , 3)
! 1134: MIPS_SYS(sys_sysmips , 4)
! 1135: MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
! 1136: MIPS_SYS(sys_getsid , 1)
! 1137: MIPS_SYS(sys_fdatasync , 0)
! 1138: MIPS_SYS(sys_sysctl , 1)
! 1139: MIPS_SYS(sys_mlock , 2)
! 1140: MIPS_SYS(sys_munlock , 2) /* 4155 */
! 1141: MIPS_SYS(sys_mlockall , 1)
! 1142: MIPS_SYS(sys_munlockall , 0)
! 1143: MIPS_SYS(sys_sched_setparam, 2)
! 1144: MIPS_SYS(sys_sched_getparam, 2)
! 1145: MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
! 1146: MIPS_SYS(sys_sched_getscheduler, 1)
! 1147: MIPS_SYS(sys_sched_yield , 0)
! 1148: MIPS_SYS(sys_sched_get_priority_max, 1)
! 1149: MIPS_SYS(sys_sched_get_priority_min, 1)
! 1150: MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
! 1151: MIPS_SYS(sys_nanosleep, 2)
! 1152: MIPS_SYS(sys_mremap , 4)
! 1153: MIPS_SYS(sys_accept , 3)
! 1154: MIPS_SYS(sys_bind , 3)
! 1155: MIPS_SYS(sys_connect , 3) /* 4170 */
! 1156: MIPS_SYS(sys_getpeername , 3)
! 1157: MIPS_SYS(sys_getsockname , 3)
! 1158: MIPS_SYS(sys_getsockopt , 5)
! 1159: MIPS_SYS(sys_listen , 2)
! 1160: MIPS_SYS(sys_recv , 4) /* 4175 */
! 1161: MIPS_SYS(sys_recvfrom , 6)
! 1162: MIPS_SYS(sys_recvmsg , 3)
! 1163: MIPS_SYS(sys_send , 4)
! 1164: MIPS_SYS(sys_sendmsg , 3)
! 1165: MIPS_SYS(sys_sendto , 6) /* 4180 */
! 1166: MIPS_SYS(sys_setsockopt , 5)
! 1167: MIPS_SYS(sys_shutdown , 2)
! 1168: MIPS_SYS(sys_socket , 3)
! 1169: MIPS_SYS(sys_socketpair , 4)
! 1170: MIPS_SYS(sys_setresuid , 3) /* 4185 */
! 1171: MIPS_SYS(sys_getresuid , 3)
! 1172: MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
! 1173: MIPS_SYS(sys_poll , 3)
! 1174: MIPS_SYS(sys_nfsservctl , 3)
! 1175: MIPS_SYS(sys_setresgid , 3) /* 4190 */
! 1176: MIPS_SYS(sys_getresgid , 3)
! 1177: MIPS_SYS(sys_prctl , 5)
! 1178: MIPS_SYS(sys_rt_sigreturn, 0)
! 1179: MIPS_SYS(sys_rt_sigaction, 4)
! 1180: MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
! 1181: MIPS_SYS(sys_rt_sigpending, 2)
! 1182: MIPS_SYS(sys_rt_sigtimedwait, 4)
! 1183: MIPS_SYS(sys_rt_sigqueueinfo, 3)
! 1184: MIPS_SYS(sys_rt_sigsuspend, 0)
! 1185: MIPS_SYS(sys_pread64 , 6) /* 4200 */
! 1186: MIPS_SYS(sys_pwrite64 , 6)
! 1187: MIPS_SYS(sys_chown , 3)
! 1188: MIPS_SYS(sys_getcwd , 2)
! 1189: MIPS_SYS(sys_capget , 2)
! 1190: MIPS_SYS(sys_capset , 2) /* 4205 */
! 1191: MIPS_SYS(sys_sigaltstack , 0)
! 1192: MIPS_SYS(sys_sendfile , 4)
! 1193: MIPS_SYS(sys_ni_syscall , 0)
! 1194: MIPS_SYS(sys_ni_syscall , 0)
! 1195: MIPS_SYS(sys_mmap2 , 6) /* 4210 */
! 1196: MIPS_SYS(sys_truncate64 , 4)
! 1197: MIPS_SYS(sys_ftruncate64 , 4)
! 1198: MIPS_SYS(sys_stat64 , 2)
! 1199: MIPS_SYS(sys_lstat64 , 2)
! 1200: MIPS_SYS(sys_fstat64 , 2) /* 4215 */
! 1201: MIPS_SYS(sys_pivot_root , 2)
! 1202: MIPS_SYS(sys_mincore , 3)
! 1203: MIPS_SYS(sys_madvise , 3)
! 1204: MIPS_SYS(sys_getdents64 , 3)
! 1205: MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
! 1206: MIPS_SYS(sys_ni_syscall , 0)
! 1207: MIPS_SYS(sys_gettid , 0)
! 1208: MIPS_SYS(sys_readahead , 5)
! 1209: MIPS_SYS(sys_setxattr , 5)
! 1210: MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
! 1211: MIPS_SYS(sys_fsetxattr , 5)
! 1212: MIPS_SYS(sys_getxattr , 4)
! 1213: MIPS_SYS(sys_lgetxattr , 4)
! 1214: MIPS_SYS(sys_fgetxattr , 4)
! 1215: MIPS_SYS(sys_listxattr , 3) /* 4230 */
! 1216: MIPS_SYS(sys_llistxattr , 3)
! 1217: MIPS_SYS(sys_flistxattr , 3)
! 1218: MIPS_SYS(sys_removexattr , 2)
! 1219: MIPS_SYS(sys_lremovexattr, 2)
! 1220: MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
! 1221: MIPS_SYS(sys_tkill , 2)
! 1222: MIPS_SYS(sys_sendfile64 , 5)
! 1223: MIPS_SYS(sys_futex , 2)
! 1224: MIPS_SYS(sys_sched_setaffinity, 3)
! 1225: MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
! 1226: MIPS_SYS(sys_io_setup , 2)
! 1227: MIPS_SYS(sys_io_destroy , 1)
! 1228: MIPS_SYS(sys_io_getevents, 5)
! 1229: MIPS_SYS(sys_io_submit , 3)
! 1230: MIPS_SYS(sys_io_cancel , 3) /* 4245 */
! 1231: MIPS_SYS(sys_exit_group , 1)
! 1232: MIPS_SYS(sys_lookup_dcookie, 3)
! 1233: MIPS_SYS(sys_epoll_create, 1)
! 1234: MIPS_SYS(sys_epoll_ctl , 4)
! 1235: MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
! 1236: MIPS_SYS(sys_remap_file_pages, 5)
! 1237: MIPS_SYS(sys_set_tid_address, 1)
! 1238: MIPS_SYS(sys_restart_syscall, 0)
! 1239: MIPS_SYS(sys_fadvise64_64, 7)
! 1240: MIPS_SYS(sys_statfs64 , 3) /* 4255 */
! 1241: MIPS_SYS(sys_fstatfs64 , 2)
! 1242: MIPS_SYS(sys_timer_create, 3)
! 1243: MIPS_SYS(sys_timer_settime, 4)
! 1244: MIPS_SYS(sys_timer_gettime, 2)
! 1245: MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
! 1246: MIPS_SYS(sys_timer_delete, 1)
! 1247: MIPS_SYS(sys_clock_settime, 2)
! 1248: MIPS_SYS(sys_clock_gettime, 2)
! 1249: MIPS_SYS(sys_clock_getres, 2)
! 1250: MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
! 1251: MIPS_SYS(sys_tgkill , 3)
! 1252: MIPS_SYS(sys_utimes , 2)
! 1253: MIPS_SYS(sys_mbind , 4)
! 1254: MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
! 1255: MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
! 1256: MIPS_SYS(sys_mq_open , 4)
! 1257: MIPS_SYS(sys_mq_unlink , 1)
! 1258: MIPS_SYS(sys_mq_timedsend, 5)
! 1259: MIPS_SYS(sys_mq_timedreceive, 5)
! 1260: MIPS_SYS(sys_mq_notify , 2) /* 4275 */
! 1261: MIPS_SYS(sys_mq_getsetattr, 3)
! 1262: MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
! 1263: MIPS_SYS(sys_waitid , 4)
! 1264: MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
! 1265: MIPS_SYS(sys_add_key , 5)
! 1266: MIPS_SYS(sys_request_key , 4)
! 1267: MIPS_SYS(sys_keyctl , 5)
! 1268: };
! 1269:
! 1270: #undef MIPS_SYS
! 1271:
! 1272: void cpu_loop(CPUMIPSState *env)
! 1273: {
! 1274: target_siginfo_t info;
! 1275: int trapnr, ret, nb_args;
! 1276: unsigned int syscall_num;
! 1277: target_ulong arg5, arg6, sp_reg;
! 1278:
! 1279: for(;;) {
! 1280: trapnr = cpu_mips_exec(env);
! 1281: switch(trapnr) {
! 1282: case EXCP_SYSCALL:
! 1283: {
! 1284: syscall_num = env->gpr[2] - 4000;
! 1285: if (syscall_num >= sizeof(mips_syscall_args)) {
! 1286: ret = -ENOSYS;
! 1287: } else {
! 1288: nb_args = mips_syscall_args[syscall_num];
! 1289: if (nb_args >= 5) {
! 1290: sp_reg = env->gpr[29];
! 1291: /* these arguments are taken from the stack */
! 1292: if (get_user(arg5, (target_ulong *)(sp_reg + 16))) {
! 1293: ret = -EFAULT;
! 1294: goto fail;
! 1295: }
! 1296: if (nb_args >= 6) {
! 1297: if (get_user(arg6, (target_ulong *)(sp_reg + 20))) {
! 1298: ret = -EFAULT;
! 1299: goto fail;
! 1300: }
! 1301: } else {
! 1302: arg6 = 0;
! 1303: }
! 1304: } else {
! 1305: arg5 = 0;
! 1306: arg6 = 0;
! 1307: }
! 1308: ret = do_syscall(env,
! 1309: env->gpr[2],
! 1310: env->gpr[4],
! 1311: env->gpr[5],
! 1312: env->gpr[6],
! 1313: env->gpr[7],
! 1314: arg5,
! 1315: arg6);
! 1316: }
! 1317: fail:
! 1318: env->PC += 4;
! 1319: if ((unsigned int)ret >= (unsigned int)(-1133)) {
! 1320: env->gpr[7] = 1; /* error flag */
! 1321: ret = -ret;
! 1322: env->gpr[0] = ret;
! 1323: env->gpr[2] = ret;
! 1324: } else {
! 1325: env->gpr[7] = 0; /* error flag */
! 1326: env->gpr[2] = ret;
! 1327: }
! 1328: }
! 1329: break;
! 1330: case EXCP_CpU:
! 1331: case EXCP_RI:
! 1332: {
! 1333: uint32_t insn, op;
! 1334:
! 1335: if (get_user(insn, (uint32_t *)env->PC) < 0)
! 1336: goto sigill;
! 1337: op = insn >> 26;
! 1338: // printf("insn=%08x op=%02x\n", insn, op);
! 1339: /* XXX: totally dummy FP ops just to be able to launch
! 1340: a few executables */
! 1341: switch(op) {
! 1342: case 0x31: /* LWC1 */
! 1343: env->PC += 4;
! 1344: break;
! 1345: case 0x39: /* SWC1 */
! 1346: env->PC += 4;
! 1347: break;
! 1348: case 0x11:
! 1349: switch((insn >> 21) & 0x1f) {
! 1350: case 0x02: /* CFC1 */
! 1351: env->PC += 4;
! 1352: break;
! 1353: default:
! 1354: goto sigill;
! 1355: }
! 1356: break;
! 1357: default:
! 1358: sigill:
! 1359: info.si_signo = TARGET_SIGILL;
! 1360: info.si_errno = 0;
! 1361: info.si_code = 0;
! 1362: queue_signal(info.si_signo, &info);
! 1363: break;
! 1364: }
! 1365: }
! 1366: break;
! 1367: default:
! 1368: // error:
! 1369: fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
! 1370: trapnr);
! 1371: cpu_dump_state(env, stderr, fprintf, 0);
! 1372: abort();
! 1373: }
! 1374: process_pending_signals(env);
! 1375: }
! 1376: }
! 1377: #endif
! 1378:
1.1 root 1379: void usage(void)
1380: {
1381: printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2005 Fabrice Bellard\n"
1382: "usage: qemu-" TARGET_ARCH " [-h] [-g] [-d opts] [-L path] [-s size] program [arguments...]\n"
1383: "Linux CPU emulator (compiled for %s emulation)\n"
1384: "\n"
1385: "-h print this help\n"
1.1.1.2 ! root 1386: "-g port wait gdb connection to port\n"
1.1 root 1387: "-L path set the elf interpreter prefix (default=%s)\n"
1388: "-s size set the stack size in bytes (default=%ld)\n"
1389: "\n"
1390: "debug options:\n"
1391: #ifdef USE_CODE_COPY
1392: "-no-code-copy disable code copy acceleration\n"
1393: #endif
1394: "-d options activate log (logfile=%s)\n"
1395: "-p pagesize set the host page size to 'pagesize'\n",
1396: TARGET_ARCH,
1397: interp_prefix,
1398: x86_stack_size,
1399: DEBUG_LOGFILE);
1400: _exit(1);
1401: }
1402:
1403: /* XXX: currently only used for async signals (see signal.c) */
1404: CPUState *global_env;
1405:
1406: /* used to free thread contexts */
1407: TaskState *first_task_state;
1408:
1409: int main(int argc, char **argv)
1410: {
1411: const char *filename;
1412: struct target_pt_regs regs1, *regs = ®s1;
1413: struct image_info info1, *info = &info1;
1414: TaskState ts1, *ts = &ts1;
1415: CPUState *env;
1416: int optind;
1417: const char *r;
1.1.1.2 ! root 1418: int gdbstub_port = 0;
1.1 root 1419:
1420: if (argc <= 1)
1421: usage();
1422:
1423: /* init debug */
1424: cpu_set_log_filename(DEBUG_LOGFILE);
1425:
1426: optind = 1;
1427: for(;;) {
1428: if (optind >= argc)
1429: break;
1430: r = argv[optind];
1431: if (r[0] != '-')
1432: break;
1433: optind++;
1434: r++;
1435: if (!strcmp(r, "-")) {
1436: break;
1437: } else if (!strcmp(r, "d")) {
1438: int mask;
1439: CPULogItem *item;
1440:
1441: if (optind >= argc)
1442: break;
1443:
1444: r = argv[optind++];
1445: mask = cpu_str_to_log_mask(r);
1446: if (!mask) {
1447: printf("Log items (comma separated):\n");
1448: for(item = cpu_log_items; item->mask != 0; item++) {
1449: printf("%-10s %s\n", item->name, item->help);
1450: }
1451: exit(1);
1452: }
1453: cpu_set_log(mask);
1454: } else if (!strcmp(r, "s")) {
1455: r = argv[optind++];
1456: x86_stack_size = strtol(r, (char **)&r, 0);
1457: if (x86_stack_size <= 0)
1458: usage();
1459: if (*r == 'M')
1460: x86_stack_size *= 1024 * 1024;
1461: else if (*r == 'k' || *r == 'K')
1462: x86_stack_size *= 1024;
1463: } else if (!strcmp(r, "L")) {
1464: interp_prefix = argv[optind++];
1465: } else if (!strcmp(r, "p")) {
1466: qemu_host_page_size = atoi(argv[optind++]);
1467: if (qemu_host_page_size == 0 ||
1468: (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
1469: fprintf(stderr, "page size must be a power of two\n");
1470: exit(1);
1471: }
1472: } else if (!strcmp(r, "g")) {
1.1.1.2 ! root 1473: gdbstub_port = atoi(argv[optind++]);
1.1 root 1474: } else
1475: #ifdef USE_CODE_COPY
1476: if (!strcmp(r, "no-code-copy")) {
1477: code_copy_enabled = 0;
1478: } else
1479: #endif
1480: {
1481: usage();
1482: }
1483: }
1484: if (optind >= argc)
1485: usage();
1486: filename = argv[optind];
1487:
1488: /* Zero out regs */
1489: memset(regs, 0, sizeof(struct target_pt_regs));
1490:
1491: /* Zero out image_info */
1492: memset(info, 0, sizeof(struct image_info));
1493:
1494: /* Scan interp_prefix dir for replacement files. */
1495: init_paths(interp_prefix);
1496:
1497: /* NOTE: we need to init the CPU at this stage to get
1498: qemu_host_page_size */
1499: env = cpu_init();
1.1.1.2 ! root 1500: global_env = env;
1.1 root 1501:
1502: if (elf_exec(filename, argv+optind, environ, regs, info) != 0) {
1503: printf("Error loading %s\n", filename);
1504: _exit(1);
1505: }
1506:
1507: if (loglevel) {
1508: page_dump(logfile);
1509:
1510: fprintf(logfile, "start_brk 0x%08lx\n" , info->start_brk);
1511: fprintf(logfile, "end_code 0x%08lx\n" , info->end_code);
1512: fprintf(logfile, "start_code 0x%08lx\n" , info->start_code);
1513: fprintf(logfile, "end_data 0x%08lx\n" , info->end_data);
1514: fprintf(logfile, "start_stack 0x%08lx\n" , info->start_stack);
1515: fprintf(logfile, "brk 0x%08lx\n" , info->brk);
1516: fprintf(logfile, "entry 0x%08lx\n" , info->entry);
1517: }
1518:
1519: target_set_brk((char *)info->brk);
1520: syscall_init();
1521: signal_init();
1522:
1523: /* build Task State */
1524: memset(ts, 0, sizeof(TaskState));
1525: env->opaque = ts;
1526: ts->used = 1;
1527: env->user_mode_only = 1;
1528:
1529: #if defined(TARGET_I386)
1530: cpu_x86_set_cpl(env, 3);
1531:
1532: env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
1533: env->hflags |= HF_PE_MASK;
1534: if (env->cpuid_features & CPUID_SSE) {
1535: env->cr[4] |= CR4_OSFXSR_MASK;
1536: env->hflags |= HF_OSFXSR_MASK;
1537: }
1538:
1539: /* flags setup : we activate the IRQs by default as in user mode */
1540: env->eflags |= IF_MASK;
1541:
1542: /* linux register setup */
1543: env->regs[R_EAX] = regs->eax;
1544: env->regs[R_EBX] = regs->ebx;
1545: env->regs[R_ECX] = regs->ecx;
1546: env->regs[R_EDX] = regs->edx;
1547: env->regs[R_ESI] = regs->esi;
1548: env->regs[R_EDI] = regs->edi;
1549: env->regs[R_EBP] = regs->ebp;
1550: env->regs[R_ESP] = regs->esp;
1551: env->eip = regs->eip;
1552:
1553: /* linux interrupt setup */
1554: env->idt.base = (long)idt_table;
1555: env->idt.limit = sizeof(idt_table) - 1;
1556: set_idt(0, 0);
1557: set_idt(1, 0);
1558: set_idt(2, 0);
1559: set_idt(3, 3);
1560: set_idt(4, 3);
1561: set_idt(5, 3);
1562: set_idt(6, 0);
1563: set_idt(7, 0);
1564: set_idt(8, 0);
1565: set_idt(9, 0);
1566: set_idt(10, 0);
1567: set_idt(11, 0);
1568: set_idt(12, 0);
1569: set_idt(13, 0);
1570: set_idt(14, 0);
1571: set_idt(15, 0);
1572: set_idt(16, 0);
1573: set_idt(17, 0);
1574: set_idt(18, 0);
1575: set_idt(19, 0);
1576: set_idt(0x80, 3);
1577:
1578: /* linux segment setup */
1579: env->gdt.base = (long)gdt_table;
1580: env->gdt.limit = sizeof(gdt_table) - 1;
1581: write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
1582: DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1583: (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
1584: write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
1585: DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1586: (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
1587: cpu_x86_load_seg(env, R_CS, __USER_CS);
1588: cpu_x86_load_seg(env, R_DS, __USER_DS);
1589: cpu_x86_load_seg(env, R_ES, __USER_DS);
1590: cpu_x86_load_seg(env, R_SS, __USER_DS);
1591: cpu_x86_load_seg(env, R_FS, __USER_DS);
1592: cpu_x86_load_seg(env, R_GS, __USER_DS);
1593:
1594: #elif defined(TARGET_ARM)
1595: {
1596: int i;
1.1.1.2 ! root 1597: cpsr_write(env, regs->uregs[16], 0xffffffff);
1.1 root 1598: for(i = 0; i < 16; i++) {
1599: env->regs[i] = regs->uregs[i];
1600: }
1601: ts->stack_base = info->start_stack;
1602: ts->heap_base = info->brk;
1603: /* This will be filled in on the first SYS_HEAPINFO call. */
1604: ts->heap_limit = 0;
1605: }
1606: #elif defined(TARGET_SPARC)
1607: {
1608: int i;
1609: env->pc = regs->pc;
1610: env->npc = regs->npc;
1611: env->y = regs->y;
1612: for(i = 0; i < 8; i++)
1613: env->gregs[i] = regs->u_regs[i];
1614: for(i = 0; i < 8; i++)
1615: env->regwptr[i] = regs->u_regs[i + 8];
1616: }
1617: #elif defined(TARGET_PPC)
1618: {
1619: ppc_def_t *def;
1620: int i;
1621:
1622: /* Choose and initialise CPU */
1623: /* XXX: CPU model (or PVR) should be provided on command line */
1624: // ppc_find_by_name("750gx", &def);
1625: // ppc_find_by_name("750fx", &def);
1626: // ppc_find_by_name("750p", &def);
1627: ppc_find_by_name("750", &def);
1628: // ppc_find_by_name("G3", &def);
1629: // ppc_find_by_name("604r", &def);
1630: // ppc_find_by_name("604e", &def);
1631: // ppc_find_by_name("604", &def);
1632: if (def == NULL) {
1.1.1.2 ! root 1633: cpu_abort(env,
1.1 root 1634: "Unable to find PowerPC CPU definition\n");
1635: }
1.1.1.2 ! root 1636: cpu_ppc_register(env, def);
1.1 root 1637:
1638: for (i = 0; i < 32; i++) {
1639: if (i != 12 && i != 6 && i != 13)
1640: env->msr[i] = (regs->msr >> i) & 1;
1641: }
1642: env->nip = regs->nip;
1643: for(i = 0; i < 32; i++) {
1644: env->gpr[i] = regs->gpr[i];
1645: }
1646: }
1.1.1.2 ! root 1647: #elif defined(TARGET_MIPS)
! 1648: {
! 1649: int i;
! 1650:
! 1651: for(i = 0; i < 32; i++) {
! 1652: env->gpr[i] = regs->regs[i];
! 1653: }
! 1654: env->PC = regs->cp0_epc;
! 1655: }
1.1 root 1656: #else
1657: #error unsupported target CPU
1658: #endif
1659:
1.1.1.2 ! root 1660: if (gdbstub_port) {
! 1661: gdbserver_start (gdbstub_port);
1.1 root 1662: gdb_handlesig(env, 0);
1663: }
1664: cpu_loop(env);
1665: /* never exits */
1666: return 0;
1667: }
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