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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;
1.1.1.3 ! root 155: uint32_t *p;
1.1 root 156: e1 = (addr << 16) | (limit & 0xffff);
157: e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
158: e2 |= flags;
1.1.1.3 ! root 159: p = ptr;
! 160: p[0] = tswapl(e1);
! 161: p[1] = tswapl(e2);
1.1 root 162: }
163:
164: static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
165: unsigned long addr, unsigned int sel)
166: {
167: unsigned int e1, e2;
1.1.1.3 ! root 168: uint32_t *p;
1.1 root 169: e1 = (addr & 0xffff) | (sel << 16);
170: e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
1.1.1.3 ! root 171: p = ptr;
! 172: p[0] = tswapl(e1);
! 173: p[1] = tswapl(e2);
1.1 root 174: }
175:
176: uint64_t gdt_table[6];
177: uint64_t idt_table[256];
178:
179: /* only dpl matters as we do only user space emulation */
180: static void set_idt(int n, unsigned int dpl)
181: {
182: set_gate(idt_table + n, 0, dpl, 0, 0);
183: }
184:
185: void cpu_loop(CPUX86State *env)
186: {
187: int trapnr;
188: target_ulong pc;
189: target_siginfo_t info;
190:
191: for(;;) {
192: trapnr = cpu_x86_exec(env);
193: switch(trapnr) {
194: case 0x80:
195: /* linux syscall */
196: env->regs[R_EAX] = do_syscall(env,
197: env->regs[R_EAX],
198: env->regs[R_EBX],
199: env->regs[R_ECX],
200: env->regs[R_EDX],
201: env->regs[R_ESI],
202: env->regs[R_EDI],
203: env->regs[R_EBP]);
204: break;
205: case EXCP0B_NOSEG:
206: case EXCP0C_STACK:
207: info.si_signo = SIGBUS;
208: info.si_errno = 0;
209: info.si_code = TARGET_SI_KERNEL;
210: info._sifields._sigfault._addr = 0;
211: queue_signal(info.si_signo, &info);
212: break;
213: case EXCP0D_GPF:
214: if (env->eflags & VM_MASK) {
215: handle_vm86_fault(env);
216: } else {
217: info.si_signo = SIGSEGV;
218: info.si_errno = 0;
219: info.si_code = TARGET_SI_KERNEL;
220: info._sifields._sigfault._addr = 0;
221: queue_signal(info.si_signo, &info);
222: }
223: break;
224: case EXCP0E_PAGE:
225: info.si_signo = SIGSEGV;
226: info.si_errno = 0;
227: if (!(env->error_code & 1))
228: info.si_code = TARGET_SEGV_MAPERR;
229: else
230: info.si_code = TARGET_SEGV_ACCERR;
231: info._sifields._sigfault._addr = env->cr[2];
232: queue_signal(info.si_signo, &info);
233: break;
234: case EXCP00_DIVZ:
235: if (env->eflags & VM_MASK) {
236: handle_vm86_trap(env, trapnr);
237: } else {
238: /* division by zero */
239: info.si_signo = SIGFPE;
240: info.si_errno = 0;
241: info.si_code = TARGET_FPE_INTDIV;
242: info._sifields._sigfault._addr = env->eip;
243: queue_signal(info.si_signo, &info);
244: }
245: break;
246: case EXCP01_SSTP:
247: case EXCP03_INT3:
248: if (env->eflags & VM_MASK) {
249: handle_vm86_trap(env, trapnr);
250: } else {
251: info.si_signo = SIGTRAP;
252: info.si_errno = 0;
253: if (trapnr == EXCP01_SSTP) {
254: info.si_code = TARGET_TRAP_BRKPT;
255: info._sifields._sigfault._addr = env->eip;
256: } else {
257: info.si_code = TARGET_SI_KERNEL;
258: info._sifields._sigfault._addr = 0;
259: }
260: queue_signal(info.si_signo, &info);
261: }
262: break;
263: case EXCP04_INTO:
264: case EXCP05_BOUND:
265: if (env->eflags & VM_MASK) {
266: handle_vm86_trap(env, trapnr);
267: } else {
268: info.si_signo = SIGSEGV;
269: info.si_errno = 0;
270: info.si_code = TARGET_SI_KERNEL;
271: info._sifields._sigfault._addr = 0;
272: queue_signal(info.si_signo, &info);
273: }
274: break;
275: case EXCP06_ILLOP:
276: info.si_signo = SIGILL;
277: info.si_errno = 0;
278: info.si_code = TARGET_ILL_ILLOPN;
279: info._sifields._sigfault._addr = env->eip;
280: queue_signal(info.si_signo, &info);
281: break;
282: case EXCP_INTERRUPT:
283: /* just indicate that signals should be handled asap */
284: break;
285: case EXCP_DEBUG:
286: {
287: int sig;
288:
289: sig = gdb_handlesig (env, TARGET_SIGTRAP);
290: if (sig)
291: {
292: info.si_signo = sig;
293: info.si_errno = 0;
294: info.si_code = TARGET_TRAP_BRKPT;
295: queue_signal(info.si_signo, &info);
296: }
297: }
298: break;
299: default:
300: pc = env->segs[R_CS].base + env->eip;
301: fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
302: (long)pc, trapnr);
303: abort();
304: }
305: process_pending_signals(env);
306: }
307: }
308: #endif
309:
310: #ifdef TARGET_ARM
311:
312: /* XXX: find a better solution */
313: extern void tb_invalidate_page_range(target_ulong start, target_ulong end);
314:
315: static void arm_cache_flush(target_ulong start, target_ulong last)
316: {
317: target_ulong addr, last1;
318:
319: if (last < start)
320: return;
321: addr = start;
322: for(;;) {
323: last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
324: if (last1 > last)
325: last1 = last;
326: tb_invalidate_page_range(addr, last1 + 1);
327: if (last1 == last)
328: break;
329: addr = last1 + 1;
330: }
331: }
332:
333: void cpu_loop(CPUARMState *env)
334: {
335: int trapnr;
336: unsigned int n, insn;
337: target_siginfo_t info;
1.1.1.2 root 338: uint32_t addr;
1.1 root 339:
340: for(;;) {
341: trapnr = cpu_arm_exec(env);
342: switch(trapnr) {
343: case EXCP_UDEF:
344: {
345: TaskState *ts = env->opaque;
346: uint32_t opcode;
347:
348: /* we handle the FPU emulation here, as Linux */
349: /* we get the opcode */
1.1.1.3 ! root 350: opcode = tget32(env->regs[15]);
1.1 root 351:
1.1.1.3 ! root 352: if (EmulateAll(opcode, &ts->fpa, env) == 0) {
1.1 root 353: info.si_signo = SIGILL;
354: info.si_errno = 0;
355: info.si_code = TARGET_ILL_ILLOPN;
356: info._sifields._sigfault._addr = env->regs[15];
357: queue_signal(info.si_signo, &info);
358: } else {
359: /* increment PC */
360: env->regs[15] += 4;
361: }
362: }
363: break;
364: case EXCP_SWI:
1.1.1.3 ! root 365: case EXCP_BKPT:
1.1 root 366: {
1.1.1.3 ! root 367: env->eabi = 1;
1.1 root 368: /* system call */
1.1.1.3 ! root 369: if (trapnr == EXCP_BKPT) {
! 370: if (env->thumb) {
! 371: insn = tget16(env->regs[15]);
! 372: n = insn & 0xff;
! 373: env->regs[15] += 2;
! 374: } else {
! 375: insn = tget32(env->regs[15]);
! 376: n = (insn & 0xf) | ((insn >> 4) & 0xff0);
! 377: env->regs[15] += 4;
! 378: }
1.1 root 379: } else {
1.1.1.3 ! root 380: if (env->thumb) {
! 381: insn = tget16(env->regs[15] - 2);
! 382: n = insn & 0xff;
! 383: } else {
! 384: insn = tget32(env->regs[15] - 4);
! 385: n = insn & 0xffffff;
! 386: }
1.1 root 387: }
388:
389: if (n == ARM_NR_cacheflush) {
390: arm_cache_flush(env->regs[0], env->regs[1]);
391: } else if (n == ARM_NR_semihosting
392: || n == ARM_NR_thumb_semihosting) {
393: env->regs[0] = do_arm_semihosting (env);
1.1.1.3 ! root 394: } else if (n == 0 || n >= ARM_SYSCALL_BASE
1.1 root 395: || (env->thumb && n == ARM_THUMB_SYSCALL)) {
396: /* linux syscall */
1.1.1.3 ! root 397: if (env->thumb || n == 0) {
1.1 root 398: n = env->regs[7];
399: } else {
400: n -= ARM_SYSCALL_BASE;
1.1.1.3 ! root 401: env->eabi = 0;
1.1 root 402: }
403: env->regs[0] = do_syscall(env,
404: n,
405: env->regs[0],
406: env->regs[1],
407: env->regs[2],
408: env->regs[3],
409: env->regs[4],
410: env->regs[5]);
411: } else {
412: goto error;
413: }
414: }
415: break;
416: case EXCP_INTERRUPT:
417: /* just indicate that signals should be handled asap */
418: break;
419: case EXCP_PREFETCH_ABORT:
1.1.1.2 root 420: addr = env->cp15.c6_data;
421: goto do_segv;
1.1 root 422: case EXCP_DATA_ABORT:
1.1.1.2 root 423: addr = env->cp15.c6_insn;
424: goto do_segv;
425: do_segv:
1.1 root 426: {
427: info.si_signo = SIGSEGV;
428: info.si_errno = 0;
429: /* XXX: check env->error_code */
430: info.si_code = TARGET_SEGV_MAPERR;
1.1.1.2 root 431: info._sifields._sigfault._addr = addr;
1.1 root 432: queue_signal(info.si_signo, &info);
433: }
434: break;
435: case EXCP_DEBUG:
436: {
437: int sig;
438:
439: sig = gdb_handlesig (env, TARGET_SIGTRAP);
440: if (sig)
441: {
442: info.si_signo = sig;
443: info.si_errno = 0;
444: info.si_code = TARGET_TRAP_BRKPT;
445: queue_signal(info.si_signo, &info);
446: }
447: }
448: break;
449: default:
450: error:
451: fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
452: trapnr);
453: cpu_dump_state(env, stderr, fprintf, 0);
454: abort();
455: }
456: process_pending_signals(env);
457: }
458: }
459:
460: #endif
461:
462: #ifdef TARGET_SPARC
463:
464: //#define DEBUG_WIN
465:
466: /* WARNING: dealing with register windows _is_ complicated. More info
467: can be found at http://www.sics.se/~psm/sparcstack.html */
468: static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
469: {
470: index = (index + cwp * 16) & (16 * NWINDOWS - 1);
471: /* wrap handling : if cwp is on the last window, then we use the
472: registers 'after' the end */
473: if (index < 8 && env->cwp == (NWINDOWS - 1))
474: index += (16 * NWINDOWS);
475: return index;
476: }
477:
478: /* save the register window 'cwp1' */
479: static inline void save_window_offset(CPUSPARCState *env, int cwp1)
480: {
481: unsigned int i;
1.1.1.3 ! root 482: target_ulong sp_ptr;
1.1 root 483:
1.1.1.3 ! root 484: sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
1.1 root 485: #if defined(DEBUG_WIN)
486: printf("win_overflow: sp_ptr=0x%x save_cwp=%d\n",
487: (int)sp_ptr, cwp1);
488: #endif
489: for(i = 0; i < 16; i++) {
1.1.1.3 ! root 490: tputl(sp_ptr, env->regbase[get_reg_index(env, cwp1, 8 + i)]);
! 491: sp_ptr += sizeof(target_ulong);
1.1 root 492: }
493: }
494:
495: static void save_window(CPUSPARCState *env)
496: {
497: unsigned int new_wim;
498: new_wim = ((env->wim >> 1) | (env->wim << (NWINDOWS - 1))) &
499: ((1LL << NWINDOWS) - 1);
500: save_window_offset(env, (env->cwp - 2) & (NWINDOWS - 1));
501: env->wim = new_wim;
502: }
503:
504: static void restore_window(CPUSPARCState *env)
505: {
506: unsigned int new_wim, i, cwp1;
1.1.1.3 ! root 507: target_ulong sp_ptr;
1.1 root 508:
509: new_wim = ((env->wim << 1) | (env->wim >> (NWINDOWS - 1))) &
510: ((1LL << NWINDOWS) - 1);
511:
512: /* restore the invalid window */
513: cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
1.1.1.3 ! root 514: sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
1.1 root 515: #if defined(DEBUG_WIN)
516: printf("win_underflow: sp_ptr=0x%x load_cwp=%d\n",
517: (int)sp_ptr, cwp1);
518: #endif
519: for(i = 0; i < 16; i++) {
1.1.1.3 ! root 520: env->regbase[get_reg_index(env, cwp1, 8 + i)] = tgetl(sp_ptr);
! 521: sp_ptr += sizeof(target_ulong);
1.1 root 522: }
523: env->wim = new_wim;
524: }
525:
526: static void flush_windows(CPUSPARCState *env)
527: {
528: int offset, cwp1;
529:
530: offset = 1;
531: for(;;) {
532: /* if restore would invoke restore_window(), then we can stop */
533: cwp1 = (env->cwp + offset) & (NWINDOWS - 1);
534: if (env->wim & (1 << cwp1))
535: break;
536: save_window_offset(env, cwp1);
537: offset++;
538: }
539: /* set wim so that restore will reload the registers */
540: cwp1 = (env->cwp + 1) & (NWINDOWS - 1);
541: env->wim = 1 << cwp1;
542: #if defined(DEBUG_WIN)
543: printf("flush_windows: nb=%d\n", offset - 1);
544: #endif
545: }
546:
547: void cpu_loop (CPUSPARCState *env)
548: {
549: int trapnr, ret;
550: target_siginfo_t info;
551:
552: while (1) {
553: trapnr = cpu_sparc_exec (env);
554:
555: switch (trapnr) {
556: case 0x88:
557: case 0x90:
558: ret = do_syscall (env, env->gregs[1],
559: env->regwptr[0], env->regwptr[1],
560: env->regwptr[2], env->regwptr[3],
561: env->regwptr[4], env->regwptr[5]);
562: if ((unsigned int)ret >= (unsigned int)(-515)) {
563: env->psr |= PSR_CARRY;
564: ret = -ret;
565: } else {
566: env->psr &= ~PSR_CARRY;
567: }
568: env->regwptr[0] = ret;
569: /* next instruction */
570: env->pc = env->npc;
571: env->npc = env->npc + 4;
572: break;
573: case 0x83: /* flush windows */
574: flush_windows(env);
575: /* next instruction */
576: env->pc = env->npc;
577: env->npc = env->npc + 4;
578: break;
579: #ifndef TARGET_SPARC64
580: case TT_WIN_OVF: /* window overflow */
581: save_window(env);
582: break;
583: case TT_WIN_UNF: /* window underflow */
584: restore_window(env);
585: break;
586: case TT_TFAULT:
587: case TT_DFAULT:
588: {
589: info.si_signo = SIGSEGV;
590: info.si_errno = 0;
591: /* XXX: check env->error_code */
592: info.si_code = TARGET_SEGV_MAPERR;
593: info._sifields._sigfault._addr = env->mmuregs[4];
594: queue_signal(info.si_signo, &info);
595: }
596: break;
597: #else
598: // XXX
599: #endif
600: case 0x100: // XXX, why do we get these?
601: break;
602: case EXCP_DEBUG:
603: {
604: int sig;
605:
606: sig = gdb_handlesig (env, TARGET_SIGTRAP);
607: if (sig)
608: {
609: info.si_signo = sig;
610: info.si_errno = 0;
611: info.si_code = TARGET_TRAP_BRKPT;
612: queue_signal(info.si_signo, &info);
613: }
614: }
615: break;
616: default:
617: printf ("Unhandled trap: 0x%x\n", trapnr);
618: cpu_dump_state(env, stderr, fprintf, 0);
619: exit (1);
620: }
621: process_pending_signals (env);
622: }
623: }
624:
625: #endif
626:
627: #ifdef TARGET_PPC
628:
629: static inline uint64_t cpu_ppc_get_tb (CPUState *env)
630: {
631: /* TO FIX */
632: return 0;
633: }
634:
635: uint32_t cpu_ppc_load_tbl (CPUState *env)
636: {
637: return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
638: }
639:
640: uint32_t cpu_ppc_load_tbu (CPUState *env)
641: {
642: return cpu_ppc_get_tb(env) >> 32;
643: }
644:
645: static void cpu_ppc_store_tb (CPUState *env, uint64_t value)
646: {
647: /* TO FIX */
648: }
649:
650: void cpu_ppc_store_tbu (CPUState *env, uint32_t value)
651: {
652: cpu_ppc_store_tb(env, ((uint64_t)value << 32) | cpu_ppc_load_tbl(env));
653: }
654:
655: void cpu_ppc_store_tbl (CPUState *env, uint32_t value)
656: {
657: cpu_ppc_store_tb(env, ((uint64_t)cpu_ppc_load_tbl(env) << 32) | value);
658: }
659:
660: uint32_t cpu_ppc_load_decr (CPUState *env)
661: {
662: /* TO FIX */
663: return -1;
664: }
665:
666: void cpu_ppc_store_decr (CPUState *env, uint32_t value)
667: {
668: /* TO FIX */
669: }
670:
671: void cpu_loop(CPUPPCState *env)
672: {
673: target_siginfo_t info;
674: int trapnr;
675: uint32_t ret;
676:
677: for(;;) {
678: trapnr = cpu_ppc_exec(env);
679: if (trapnr != EXCP_SYSCALL_USER && trapnr != EXCP_BRANCH &&
680: trapnr != EXCP_TRACE) {
681: if (loglevel > 0) {
682: cpu_dump_state(env, logfile, fprintf, 0);
683: }
684: }
685: switch(trapnr) {
686: case EXCP_NONE:
687: break;
688: case EXCP_SYSCALL_USER:
689: /* system call */
690: /* WARNING:
691: * PPC ABI uses overflow flag in cr0 to signal an error
692: * in syscalls.
693: */
694: #if 0
695: printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
696: env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
697: #endif
698: env->crf[0] &= ~0x1;
699: ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
700: env->gpr[5], env->gpr[6], env->gpr[7],
701: env->gpr[8]);
702: if (ret > (uint32_t)(-515)) {
703: env->crf[0] |= 0x1;
704: ret = -ret;
705: }
706: env->gpr[3] = ret;
707: #if 0
708: printf("syscall returned 0x%08x (%d)\n", ret, ret);
709: #endif
710: break;
711: case EXCP_RESET:
712: /* Should not happen ! */
713: fprintf(stderr, "RESET asked... Stop emulation\n");
714: if (loglevel)
715: fprintf(logfile, "RESET asked... Stop emulation\n");
716: abort();
717: case EXCP_MACHINE_CHECK:
718: fprintf(stderr, "Machine check exeption... Stop emulation\n");
719: if (loglevel)
720: fprintf(logfile, "RESET asked... Stop emulation\n");
721: info.si_signo = TARGET_SIGBUS;
722: info.si_errno = 0;
723: info.si_code = TARGET_BUS_OBJERR;
724: info._sifields._sigfault._addr = env->nip - 4;
725: queue_signal(info.si_signo, &info);
726: case EXCP_DSI:
727: fprintf(stderr, "Invalid data memory access: 0x%08x\n",
728: env->spr[SPR_DAR]);
729: if (loglevel) {
730: fprintf(logfile, "Invalid data memory access: 0x%08x\n",
731: env->spr[SPR_DAR]);
732: }
733: switch (env->error_code & 0xFF000000) {
734: case 0x40000000:
735: info.si_signo = TARGET_SIGSEGV;
736: info.si_errno = 0;
737: info.si_code = TARGET_SEGV_MAPERR;
738: break;
739: case 0x04000000:
740: info.si_signo = TARGET_SIGILL;
741: info.si_errno = 0;
742: info.si_code = TARGET_ILL_ILLADR;
743: break;
744: case 0x08000000:
745: info.si_signo = TARGET_SIGSEGV;
746: info.si_errno = 0;
747: info.si_code = TARGET_SEGV_ACCERR;
748: break;
749: default:
750: /* Let's send a regular segfault... */
751: fprintf(stderr, "Invalid segfault errno (%02x)\n",
752: env->error_code);
753: if (loglevel) {
754: fprintf(logfile, "Invalid segfault errno (%02x)\n",
755: env->error_code);
756: }
757: info.si_signo = TARGET_SIGSEGV;
758: info.si_errno = 0;
759: info.si_code = TARGET_SEGV_MAPERR;
760: break;
761: }
762: info._sifields._sigfault._addr = env->nip;
763: queue_signal(info.si_signo, &info);
764: break;
765: case EXCP_ISI:
766: fprintf(stderr, "Invalid instruction fetch\n");
767: if (loglevel)
768: fprintf(logfile, "Invalid instruction fetch\n");
769: switch (env->error_code & 0xFF000000) {
770: case 0x40000000:
771: info.si_signo = TARGET_SIGSEGV;
772: info.si_errno = 0;
773: info.si_code = TARGET_SEGV_MAPERR;
774: break;
775: case 0x10000000:
776: case 0x08000000:
777: info.si_signo = TARGET_SIGSEGV;
778: info.si_errno = 0;
779: info.si_code = TARGET_SEGV_ACCERR;
780: break;
781: default:
782: /* Let's send a regular segfault... */
783: fprintf(stderr, "Invalid segfault errno (%02x)\n",
784: env->error_code);
785: if (loglevel) {
786: fprintf(logfile, "Invalid segfault errno (%02x)\n",
787: env->error_code);
788: }
789: info.si_signo = TARGET_SIGSEGV;
790: info.si_errno = 0;
791: info.si_code = TARGET_SEGV_MAPERR;
792: break;
793: }
794: info._sifields._sigfault._addr = env->nip - 4;
795: queue_signal(info.si_signo, &info);
796: break;
797: case EXCP_EXTERNAL:
798: /* Should not happen ! */
799: fprintf(stderr, "External interruption... Stop emulation\n");
800: if (loglevel)
801: fprintf(logfile, "External interruption... Stop emulation\n");
802: abort();
803: case EXCP_ALIGN:
804: fprintf(stderr, "Invalid unaligned memory access\n");
805: if (loglevel)
806: fprintf(logfile, "Invalid unaligned memory access\n");
807: info.si_signo = TARGET_SIGBUS;
808: info.si_errno = 0;
809: info.si_code = TARGET_BUS_ADRALN;
810: info._sifields._sigfault._addr = env->nip - 4;
811: queue_signal(info.si_signo, &info);
812: break;
813: case EXCP_PROGRAM:
814: switch (env->error_code & ~0xF) {
815: case EXCP_FP:
816: fprintf(stderr, "Program exception\n");
817: if (loglevel)
818: fprintf(logfile, "Program exception\n");
819: /* Set FX */
820: env->fpscr[7] |= 0x8;
821: /* Finally, update FEX */
822: if ((((env->fpscr[7] & 0x3) << 3) | (env->fpscr[6] >> 1)) &
823: ((env->fpscr[1] << 1) | (env->fpscr[0] >> 3)))
824: env->fpscr[7] |= 0x4;
825: info.si_signo = TARGET_SIGFPE;
826: info.si_errno = 0;
827: switch (env->error_code & 0xF) {
828: case EXCP_FP_OX:
829: info.si_code = TARGET_FPE_FLTOVF;
830: break;
831: case EXCP_FP_UX:
832: info.si_code = TARGET_FPE_FLTUND;
833: break;
834: case EXCP_FP_ZX:
835: case EXCP_FP_VXZDZ:
836: info.si_code = TARGET_FPE_FLTDIV;
837: break;
838: case EXCP_FP_XX:
839: info.si_code = TARGET_FPE_FLTRES;
840: break;
841: case EXCP_FP_VXSOFT:
842: info.si_code = TARGET_FPE_FLTINV;
843: break;
844: case EXCP_FP_VXNAN:
845: case EXCP_FP_VXISI:
846: case EXCP_FP_VXIDI:
847: case EXCP_FP_VXIMZ:
848: case EXCP_FP_VXVC:
849: case EXCP_FP_VXSQRT:
850: case EXCP_FP_VXCVI:
851: info.si_code = TARGET_FPE_FLTSUB;
852: break;
853: default:
854: fprintf(stderr, "Unknown floating point exception "
855: "(%02x)\n", env->error_code);
856: if (loglevel) {
857: fprintf(logfile, "Unknown floating point exception "
858: "(%02x)\n", env->error_code & 0xF);
859: }
860: }
861: break;
862: case EXCP_INVAL:
863: fprintf(stderr, "Invalid instruction\n");
864: if (loglevel)
865: fprintf(logfile, "Invalid instruction\n");
866: info.si_signo = TARGET_SIGILL;
867: info.si_errno = 0;
868: switch (env->error_code & 0xF) {
869: case EXCP_INVAL_INVAL:
870: info.si_code = TARGET_ILL_ILLOPC;
871: break;
872: case EXCP_INVAL_LSWX:
873: info.si_code = TARGET_ILL_ILLOPN;
874: break;
875: case EXCP_INVAL_SPR:
876: info.si_code = TARGET_ILL_PRVREG;
877: break;
878: case EXCP_INVAL_FP:
879: info.si_code = TARGET_ILL_COPROC;
880: break;
881: default:
882: fprintf(stderr, "Unknown invalid operation (%02x)\n",
883: env->error_code & 0xF);
884: if (loglevel) {
885: fprintf(logfile, "Unknown invalid operation (%02x)\n",
886: env->error_code & 0xF);
887: }
888: info.si_code = TARGET_ILL_ILLADR;
889: break;
890: }
891: break;
892: case EXCP_PRIV:
893: fprintf(stderr, "Privilege violation\n");
894: if (loglevel)
895: fprintf(logfile, "Privilege violation\n");
896: info.si_signo = TARGET_SIGILL;
897: info.si_errno = 0;
898: switch (env->error_code & 0xF) {
899: case EXCP_PRIV_OPC:
900: info.si_code = TARGET_ILL_PRVOPC;
901: break;
902: case EXCP_PRIV_REG:
903: info.si_code = TARGET_ILL_PRVREG;
904: break;
905: default:
906: fprintf(stderr, "Unknown privilege violation (%02x)\n",
907: env->error_code & 0xF);
908: info.si_code = TARGET_ILL_PRVOPC;
909: break;
910: }
911: break;
912: case EXCP_TRAP:
913: fprintf(stderr, "Tried to call a TRAP\n");
914: if (loglevel)
915: fprintf(logfile, "Tried to call a TRAP\n");
916: abort();
917: default:
918: /* Should not happen ! */
919: fprintf(stderr, "Unknown program exception (%02x)\n",
920: env->error_code);
921: if (loglevel) {
922: fprintf(logfile, "Unknwon program exception (%02x)\n",
923: env->error_code);
924: }
925: abort();
926: }
927: info._sifields._sigfault._addr = env->nip - 4;
928: queue_signal(info.si_signo, &info);
929: break;
930: case EXCP_NO_FP:
931: fprintf(stderr, "No floating point allowed\n");
932: if (loglevel)
933: fprintf(logfile, "No floating point allowed\n");
934: info.si_signo = TARGET_SIGILL;
935: info.si_errno = 0;
936: info.si_code = TARGET_ILL_COPROC;
937: info._sifields._sigfault._addr = env->nip - 4;
938: queue_signal(info.si_signo, &info);
939: break;
940: case EXCP_DECR:
941: /* Should not happen ! */
942: fprintf(stderr, "Decrementer exception\n");
943: if (loglevel)
944: fprintf(logfile, "Decrementer exception\n");
945: abort();
946: case EXCP_TRACE:
947: /* Do nothing: we use this to trace execution */
948: break;
949: case EXCP_FP_ASSIST:
950: /* Should not happen ! */
951: fprintf(stderr, "Floating point assist exception\n");
952: if (loglevel)
953: fprintf(logfile, "Floating point assist exception\n");
954: abort();
955: case EXCP_MTMSR:
956: /* We reloaded the msr, just go on */
957: if (msr_pr == 0) {
958: fprintf(stderr, "Tried to go into supervisor mode !\n");
959: if (loglevel)
960: fprintf(logfile, "Tried to go into supervisor mode !\n");
961: abort();
962: }
963: break;
964: case EXCP_BRANCH:
965: /* We stopped because of a jump... */
966: break;
967: case EXCP_INTERRUPT:
968: /* Don't know why this should ever happen... */
969: break;
970: case EXCP_DEBUG:
971: {
972: int sig;
973:
974: sig = gdb_handlesig (env, TARGET_SIGTRAP);
975: if (sig)
976: {
977: info.si_signo = sig;
978: info.si_errno = 0;
979: info.si_code = TARGET_TRAP_BRKPT;
980: queue_signal(info.si_signo, &info);
981: }
982: }
983: break;
984: default:
985: fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
986: trapnr);
987: if (loglevel) {
988: fprintf(logfile, "qemu: unhandled CPU exception 0x%02x - "
989: "0x%02x - aborting\n", trapnr, env->error_code);
990: }
991: abort();
992: }
993: process_pending_signals(env);
994: }
995: }
996: #endif
997:
1.1.1.2 root 998: #ifdef TARGET_MIPS
999:
1000: #define MIPS_SYS(name, args) args,
1001:
1002: static const uint8_t mips_syscall_args[] = {
1003: MIPS_SYS(sys_syscall , 0) /* 4000 */
1004: MIPS_SYS(sys_exit , 1)
1005: MIPS_SYS(sys_fork , 0)
1006: MIPS_SYS(sys_read , 3)
1007: MIPS_SYS(sys_write , 3)
1008: MIPS_SYS(sys_open , 3) /* 4005 */
1009: MIPS_SYS(sys_close , 1)
1010: MIPS_SYS(sys_waitpid , 3)
1011: MIPS_SYS(sys_creat , 2)
1012: MIPS_SYS(sys_link , 2)
1013: MIPS_SYS(sys_unlink , 1) /* 4010 */
1014: MIPS_SYS(sys_execve , 0)
1015: MIPS_SYS(sys_chdir , 1)
1016: MIPS_SYS(sys_time , 1)
1017: MIPS_SYS(sys_mknod , 3)
1018: MIPS_SYS(sys_chmod , 2) /* 4015 */
1019: MIPS_SYS(sys_lchown , 3)
1020: MIPS_SYS(sys_ni_syscall , 0)
1021: MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1022: MIPS_SYS(sys_lseek , 3)
1023: MIPS_SYS(sys_getpid , 0) /* 4020 */
1024: MIPS_SYS(sys_mount , 5)
1025: MIPS_SYS(sys_oldumount , 1)
1026: MIPS_SYS(sys_setuid , 1)
1027: MIPS_SYS(sys_getuid , 0)
1028: MIPS_SYS(sys_stime , 1) /* 4025 */
1029: MIPS_SYS(sys_ptrace , 4)
1030: MIPS_SYS(sys_alarm , 1)
1031: MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1032: MIPS_SYS(sys_pause , 0)
1033: MIPS_SYS(sys_utime , 2) /* 4030 */
1034: MIPS_SYS(sys_ni_syscall , 0)
1035: MIPS_SYS(sys_ni_syscall , 0)
1036: MIPS_SYS(sys_access , 2)
1037: MIPS_SYS(sys_nice , 1)
1038: MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1039: MIPS_SYS(sys_sync , 0)
1040: MIPS_SYS(sys_kill , 2)
1041: MIPS_SYS(sys_rename , 2)
1042: MIPS_SYS(sys_mkdir , 2)
1043: MIPS_SYS(sys_rmdir , 1) /* 4040 */
1044: MIPS_SYS(sys_dup , 1)
1045: MIPS_SYS(sys_pipe , 0)
1046: MIPS_SYS(sys_times , 1)
1047: MIPS_SYS(sys_ni_syscall , 0)
1048: MIPS_SYS(sys_brk , 1) /* 4045 */
1049: MIPS_SYS(sys_setgid , 1)
1050: MIPS_SYS(sys_getgid , 0)
1051: MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1052: MIPS_SYS(sys_geteuid , 0)
1053: MIPS_SYS(sys_getegid , 0) /* 4050 */
1054: MIPS_SYS(sys_acct , 0)
1055: MIPS_SYS(sys_umount , 2)
1056: MIPS_SYS(sys_ni_syscall , 0)
1057: MIPS_SYS(sys_ioctl , 3)
1058: MIPS_SYS(sys_fcntl , 3) /* 4055 */
1059: MIPS_SYS(sys_ni_syscall , 2)
1060: MIPS_SYS(sys_setpgid , 2)
1061: MIPS_SYS(sys_ni_syscall , 0)
1062: MIPS_SYS(sys_olduname , 1)
1063: MIPS_SYS(sys_umask , 1) /* 4060 */
1064: MIPS_SYS(sys_chroot , 1)
1065: MIPS_SYS(sys_ustat , 2)
1066: MIPS_SYS(sys_dup2 , 2)
1067: MIPS_SYS(sys_getppid , 0)
1068: MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1069: MIPS_SYS(sys_setsid , 0)
1070: MIPS_SYS(sys_sigaction , 3)
1071: MIPS_SYS(sys_sgetmask , 0)
1072: MIPS_SYS(sys_ssetmask , 1)
1073: MIPS_SYS(sys_setreuid , 2) /* 4070 */
1074: MIPS_SYS(sys_setregid , 2)
1075: MIPS_SYS(sys_sigsuspend , 0)
1076: MIPS_SYS(sys_sigpending , 1)
1077: MIPS_SYS(sys_sethostname , 2)
1078: MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1079: MIPS_SYS(sys_getrlimit , 2)
1080: MIPS_SYS(sys_getrusage , 2)
1081: MIPS_SYS(sys_gettimeofday, 2)
1082: MIPS_SYS(sys_settimeofday, 2)
1083: MIPS_SYS(sys_getgroups , 2) /* 4080 */
1084: MIPS_SYS(sys_setgroups , 2)
1085: MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1086: MIPS_SYS(sys_symlink , 2)
1087: MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1088: MIPS_SYS(sys_readlink , 3) /* 4085 */
1089: MIPS_SYS(sys_uselib , 1)
1090: MIPS_SYS(sys_swapon , 2)
1091: MIPS_SYS(sys_reboot , 3)
1092: MIPS_SYS(old_readdir , 3)
1093: MIPS_SYS(old_mmap , 6) /* 4090 */
1094: MIPS_SYS(sys_munmap , 2)
1095: MIPS_SYS(sys_truncate , 2)
1096: MIPS_SYS(sys_ftruncate , 2)
1097: MIPS_SYS(sys_fchmod , 2)
1098: MIPS_SYS(sys_fchown , 3) /* 4095 */
1099: MIPS_SYS(sys_getpriority , 2)
1100: MIPS_SYS(sys_setpriority , 3)
1101: MIPS_SYS(sys_ni_syscall , 0)
1102: MIPS_SYS(sys_statfs , 2)
1103: MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1104: MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1105: MIPS_SYS(sys_socketcall , 2)
1106: MIPS_SYS(sys_syslog , 3)
1107: MIPS_SYS(sys_setitimer , 3)
1108: MIPS_SYS(sys_getitimer , 2) /* 4105 */
1109: MIPS_SYS(sys_newstat , 2)
1110: MIPS_SYS(sys_newlstat , 2)
1111: MIPS_SYS(sys_newfstat , 2)
1112: MIPS_SYS(sys_uname , 1)
1113: MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1114: MIPS_SYS(sys_vhangup , 0)
1115: MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1116: MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1117: MIPS_SYS(sys_wait4 , 4)
1118: MIPS_SYS(sys_swapoff , 1) /* 4115 */
1119: MIPS_SYS(sys_sysinfo , 1)
1120: MIPS_SYS(sys_ipc , 6)
1121: MIPS_SYS(sys_fsync , 1)
1122: MIPS_SYS(sys_sigreturn , 0)
1123: MIPS_SYS(sys_clone , 0) /* 4120 */
1124: MIPS_SYS(sys_setdomainname, 2)
1125: MIPS_SYS(sys_newuname , 1)
1126: MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1127: MIPS_SYS(sys_adjtimex , 1)
1128: MIPS_SYS(sys_mprotect , 3) /* 4125 */
1129: MIPS_SYS(sys_sigprocmask , 3)
1130: MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1131: MIPS_SYS(sys_init_module , 5)
1132: MIPS_SYS(sys_delete_module, 1)
1133: MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1134: MIPS_SYS(sys_quotactl , 0)
1135: MIPS_SYS(sys_getpgid , 1)
1136: MIPS_SYS(sys_fchdir , 1)
1137: MIPS_SYS(sys_bdflush , 2)
1138: MIPS_SYS(sys_sysfs , 3) /* 4135 */
1139: MIPS_SYS(sys_personality , 1)
1140: MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1141: MIPS_SYS(sys_setfsuid , 1)
1142: MIPS_SYS(sys_setfsgid , 1)
1143: MIPS_SYS(sys_llseek , 5) /* 4140 */
1144: MIPS_SYS(sys_getdents , 3)
1145: MIPS_SYS(sys_select , 5)
1146: MIPS_SYS(sys_flock , 2)
1147: MIPS_SYS(sys_msync , 3)
1148: MIPS_SYS(sys_readv , 3) /* 4145 */
1149: MIPS_SYS(sys_writev , 3)
1150: MIPS_SYS(sys_cacheflush , 3)
1151: MIPS_SYS(sys_cachectl , 3)
1152: MIPS_SYS(sys_sysmips , 4)
1153: MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1154: MIPS_SYS(sys_getsid , 1)
1155: MIPS_SYS(sys_fdatasync , 0)
1156: MIPS_SYS(sys_sysctl , 1)
1157: MIPS_SYS(sys_mlock , 2)
1158: MIPS_SYS(sys_munlock , 2) /* 4155 */
1159: MIPS_SYS(sys_mlockall , 1)
1160: MIPS_SYS(sys_munlockall , 0)
1161: MIPS_SYS(sys_sched_setparam, 2)
1162: MIPS_SYS(sys_sched_getparam, 2)
1163: MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1164: MIPS_SYS(sys_sched_getscheduler, 1)
1165: MIPS_SYS(sys_sched_yield , 0)
1166: MIPS_SYS(sys_sched_get_priority_max, 1)
1167: MIPS_SYS(sys_sched_get_priority_min, 1)
1168: MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1169: MIPS_SYS(sys_nanosleep, 2)
1170: MIPS_SYS(sys_mremap , 4)
1171: MIPS_SYS(sys_accept , 3)
1172: MIPS_SYS(sys_bind , 3)
1173: MIPS_SYS(sys_connect , 3) /* 4170 */
1174: MIPS_SYS(sys_getpeername , 3)
1175: MIPS_SYS(sys_getsockname , 3)
1176: MIPS_SYS(sys_getsockopt , 5)
1177: MIPS_SYS(sys_listen , 2)
1178: MIPS_SYS(sys_recv , 4) /* 4175 */
1179: MIPS_SYS(sys_recvfrom , 6)
1180: MIPS_SYS(sys_recvmsg , 3)
1181: MIPS_SYS(sys_send , 4)
1182: MIPS_SYS(sys_sendmsg , 3)
1183: MIPS_SYS(sys_sendto , 6) /* 4180 */
1184: MIPS_SYS(sys_setsockopt , 5)
1185: MIPS_SYS(sys_shutdown , 2)
1186: MIPS_SYS(sys_socket , 3)
1187: MIPS_SYS(sys_socketpair , 4)
1188: MIPS_SYS(sys_setresuid , 3) /* 4185 */
1189: MIPS_SYS(sys_getresuid , 3)
1190: MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1191: MIPS_SYS(sys_poll , 3)
1192: MIPS_SYS(sys_nfsservctl , 3)
1193: MIPS_SYS(sys_setresgid , 3) /* 4190 */
1194: MIPS_SYS(sys_getresgid , 3)
1195: MIPS_SYS(sys_prctl , 5)
1196: MIPS_SYS(sys_rt_sigreturn, 0)
1197: MIPS_SYS(sys_rt_sigaction, 4)
1198: MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1199: MIPS_SYS(sys_rt_sigpending, 2)
1200: MIPS_SYS(sys_rt_sigtimedwait, 4)
1201: MIPS_SYS(sys_rt_sigqueueinfo, 3)
1202: MIPS_SYS(sys_rt_sigsuspend, 0)
1203: MIPS_SYS(sys_pread64 , 6) /* 4200 */
1204: MIPS_SYS(sys_pwrite64 , 6)
1205: MIPS_SYS(sys_chown , 3)
1206: MIPS_SYS(sys_getcwd , 2)
1207: MIPS_SYS(sys_capget , 2)
1208: MIPS_SYS(sys_capset , 2) /* 4205 */
1209: MIPS_SYS(sys_sigaltstack , 0)
1210: MIPS_SYS(sys_sendfile , 4)
1211: MIPS_SYS(sys_ni_syscall , 0)
1212: MIPS_SYS(sys_ni_syscall , 0)
1213: MIPS_SYS(sys_mmap2 , 6) /* 4210 */
1214: MIPS_SYS(sys_truncate64 , 4)
1215: MIPS_SYS(sys_ftruncate64 , 4)
1216: MIPS_SYS(sys_stat64 , 2)
1217: MIPS_SYS(sys_lstat64 , 2)
1218: MIPS_SYS(sys_fstat64 , 2) /* 4215 */
1219: MIPS_SYS(sys_pivot_root , 2)
1220: MIPS_SYS(sys_mincore , 3)
1221: MIPS_SYS(sys_madvise , 3)
1222: MIPS_SYS(sys_getdents64 , 3)
1223: MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
1224: MIPS_SYS(sys_ni_syscall , 0)
1225: MIPS_SYS(sys_gettid , 0)
1226: MIPS_SYS(sys_readahead , 5)
1227: MIPS_SYS(sys_setxattr , 5)
1228: MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
1229: MIPS_SYS(sys_fsetxattr , 5)
1230: MIPS_SYS(sys_getxattr , 4)
1231: MIPS_SYS(sys_lgetxattr , 4)
1232: MIPS_SYS(sys_fgetxattr , 4)
1233: MIPS_SYS(sys_listxattr , 3) /* 4230 */
1234: MIPS_SYS(sys_llistxattr , 3)
1235: MIPS_SYS(sys_flistxattr , 3)
1236: MIPS_SYS(sys_removexattr , 2)
1237: MIPS_SYS(sys_lremovexattr, 2)
1238: MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
1239: MIPS_SYS(sys_tkill , 2)
1240: MIPS_SYS(sys_sendfile64 , 5)
1241: MIPS_SYS(sys_futex , 2)
1242: MIPS_SYS(sys_sched_setaffinity, 3)
1243: MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
1244: MIPS_SYS(sys_io_setup , 2)
1245: MIPS_SYS(sys_io_destroy , 1)
1246: MIPS_SYS(sys_io_getevents, 5)
1247: MIPS_SYS(sys_io_submit , 3)
1248: MIPS_SYS(sys_io_cancel , 3) /* 4245 */
1249: MIPS_SYS(sys_exit_group , 1)
1250: MIPS_SYS(sys_lookup_dcookie, 3)
1251: MIPS_SYS(sys_epoll_create, 1)
1252: MIPS_SYS(sys_epoll_ctl , 4)
1253: MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
1254: MIPS_SYS(sys_remap_file_pages, 5)
1255: MIPS_SYS(sys_set_tid_address, 1)
1256: MIPS_SYS(sys_restart_syscall, 0)
1257: MIPS_SYS(sys_fadvise64_64, 7)
1258: MIPS_SYS(sys_statfs64 , 3) /* 4255 */
1259: MIPS_SYS(sys_fstatfs64 , 2)
1260: MIPS_SYS(sys_timer_create, 3)
1261: MIPS_SYS(sys_timer_settime, 4)
1262: MIPS_SYS(sys_timer_gettime, 2)
1263: MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
1264: MIPS_SYS(sys_timer_delete, 1)
1265: MIPS_SYS(sys_clock_settime, 2)
1266: MIPS_SYS(sys_clock_gettime, 2)
1267: MIPS_SYS(sys_clock_getres, 2)
1268: MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
1269: MIPS_SYS(sys_tgkill , 3)
1270: MIPS_SYS(sys_utimes , 2)
1271: MIPS_SYS(sys_mbind , 4)
1272: MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
1273: MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
1274: MIPS_SYS(sys_mq_open , 4)
1275: MIPS_SYS(sys_mq_unlink , 1)
1276: MIPS_SYS(sys_mq_timedsend, 5)
1277: MIPS_SYS(sys_mq_timedreceive, 5)
1278: MIPS_SYS(sys_mq_notify , 2) /* 4275 */
1279: MIPS_SYS(sys_mq_getsetattr, 3)
1280: MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
1281: MIPS_SYS(sys_waitid , 4)
1282: MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
1283: MIPS_SYS(sys_add_key , 5)
1284: MIPS_SYS(sys_request_key , 4)
1285: MIPS_SYS(sys_keyctl , 5)
1286: };
1287:
1288: #undef MIPS_SYS
1289:
1290: void cpu_loop(CPUMIPSState *env)
1291: {
1292: target_siginfo_t info;
1293: int trapnr, ret, nb_args;
1294: unsigned int syscall_num;
1295: target_ulong arg5, arg6, sp_reg;
1296:
1297: for(;;) {
1298: trapnr = cpu_mips_exec(env);
1299: switch(trapnr) {
1300: case EXCP_SYSCALL:
1301: {
1302: syscall_num = env->gpr[2] - 4000;
1303: if (syscall_num >= sizeof(mips_syscall_args)) {
1304: ret = -ENOSYS;
1305: } else {
1306: nb_args = mips_syscall_args[syscall_num];
1307: if (nb_args >= 5) {
1308: sp_reg = env->gpr[29];
1309: /* these arguments are taken from the stack */
1.1.1.3 ! root 1310: arg5 = tgetl(sp_reg + 16);
1.1.1.2 root 1311: if (nb_args >= 6) {
1.1.1.3 ! root 1312: arg6 = tgetl(sp_reg + 20);
1.1.1.2 root 1313: } else {
1314: arg6 = 0;
1315: }
1316: } else {
1317: arg5 = 0;
1318: arg6 = 0;
1319: }
1320: ret = do_syscall(env,
1321: env->gpr[2],
1322: env->gpr[4],
1323: env->gpr[5],
1324: env->gpr[6],
1325: env->gpr[7],
1326: arg5,
1327: arg6);
1328: }
1329: fail:
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: {
1345: uint32_t insn, op;
1346:
1.1.1.3 ! root 1347: insn = tget32(env->PC);
1.1.1.2 root 1348: op = insn >> 26;
1349: // printf("insn=%08x op=%02x\n", insn, op);
1350: /* XXX: totally dummy FP ops just to be able to launch
1351: a few executables */
1352: switch(op) {
1353: case 0x31: /* LWC1 */
1354: env->PC += 4;
1355: break;
1356: case 0x39: /* SWC1 */
1357: env->PC += 4;
1358: break;
1359: case 0x11:
1360: switch((insn >> 21) & 0x1f) {
1361: case 0x02: /* CFC1 */
1362: env->PC += 4;
1363: break;
1364: default:
1365: goto sigill;
1366: }
1367: break;
1368: default:
1369: sigill:
1370: info.si_signo = TARGET_SIGILL;
1371: info.si_errno = 0;
1372: info.si_code = 0;
1373: queue_signal(info.si_signo, &info);
1374: break;
1375: }
1376: }
1377: break;
1378: default:
1379: // error:
1380: fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1381: trapnr);
1382: cpu_dump_state(env, stderr, fprintf, 0);
1383: abort();
1384: }
1385: process_pending_signals(env);
1386: }
1387: }
1388: #endif
1389:
1.1.1.3 ! root 1390: #ifdef TARGET_SH4
! 1391: void cpu_loop (CPUState *env)
! 1392: {
! 1393: int trapnr, ret;
! 1394: // target_siginfo_t info;
! 1395:
! 1396: while (1) {
! 1397: trapnr = cpu_sh4_exec (env);
! 1398:
! 1399: switch (trapnr) {
! 1400: case 0x160:
! 1401: ret = do_syscall(env,
! 1402: env->gregs[0x13],
! 1403: env->gregs[0x14],
! 1404: env->gregs[0x15],
! 1405: env->gregs[0x16],
! 1406: env->gregs[0x17],
! 1407: env->gregs[0x10],
! 1408: 0);
! 1409: env->gregs[0x10] = ret;
! 1410: env->pc += 2;
! 1411: break;
! 1412: default:
! 1413: printf ("Unhandled trap: 0x%x\n", trapnr);
! 1414: cpu_dump_state(env, stderr, fprintf, 0);
! 1415: exit (1);
! 1416: }
! 1417: process_pending_signals (env);
! 1418: }
! 1419: }
! 1420: #endif
! 1421:
1.1 root 1422: void usage(void)
1423: {
1424: printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2005 Fabrice Bellard\n"
1425: "usage: qemu-" TARGET_ARCH " [-h] [-g] [-d opts] [-L path] [-s size] program [arguments...]\n"
1426: "Linux CPU emulator (compiled for %s emulation)\n"
1427: "\n"
1428: "-h print this help\n"
1.1.1.2 root 1429: "-g port wait gdb connection to port\n"
1.1 root 1430: "-L path set the elf interpreter prefix (default=%s)\n"
1431: "-s size set the stack size in bytes (default=%ld)\n"
1432: "\n"
1433: "debug options:\n"
1434: #ifdef USE_CODE_COPY
1435: "-no-code-copy disable code copy acceleration\n"
1436: #endif
1437: "-d options activate log (logfile=%s)\n"
1438: "-p pagesize set the host page size to 'pagesize'\n",
1439: TARGET_ARCH,
1440: interp_prefix,
1441: x86_stack_size,
1442: DEBUG_LOGFILE);
1443: _exit(1);
1444: }
1445:
1446: /* XXX: currently only used for async signals (see signal.c) */
1447: CPUState *global_env;
1448:
1449: /* used to free thread contexts */
1450: TaskState *first_task_state;
1451:
1452: int main(int argc, char **argv)
1453: {
1454: const char *filename;
1455: struct target_pt_regs regs1, *regs = ®s1;
1456: struct image_info info1, *info = &info1;
1457: TaskState ts1, *ts = &ts1;
1458: CPUState *env;
1459: int optind;
1460: const char *r;
1.1.1.2 root 1461: int gdbstub_port = 0;
1.1 root 1462:
1463: if (argc <= 1)
1464: usage();
1465:
1466: /* init debug */
1467: cpu_set_log_filename(DEBUG_LOGFILE);
1468:
1469: optind = 1;
1470: for(;;) {
1471: if (optind >= argc)
1472: break;
1473: r = argv[optind];
1474: if (r[0] != '-')
1475: break;
1476: optind++;
1477: r++;
1478: if (!strcmp(r, "-")) {
1479: break;
1480: } else if (!strcmp(r, "d")) {
1481: int mask;
1482: CPULogItem *item;
1483:
1484: if (optind >= argc)
1485: break;
1486:
1487: r = argv[optind++];
1488: mask = cpu_str_to_log_mask(r);
1489: if (!mask) {
1490: printf("Log items (comma separated):\n");
1491: for(item = cpu_log_items; item->mask != 0; item++) {
1492: printf("%-10s %s\n", item->name, item->help);
1493: }
1494: exit(1);
1495: }
1496: cpu_set_log(mask);
1497: } else if (!strcmp(r, "s")) {
1498: r = argv[optind++];
1499: x86_stack_size = strtol(r, (char **)&r, 0);
1500: if (x86_stack_size <= 0)
1501: usage();
1502: if (*r == 'M')
1503: x86_stack_size *= 1024 * 1024;
1504: else if (*r == 'k' || *r == 'K')
1505: x86_stack_size *= 1024;
1506: } else if (!strcmp(r, "L")) {
1507: interp_prefix = argv[optind++];
1508: } else if (!strcmp(r, "p")) {
1509: qemu_host_page_size = atoi(argv[optind++]);
1510: if (qemu_host_page_size == 0 ||
1511: (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
1512: fprintf(stderr, "page size must be a power of two\n");
1513: exit(1);
1514: }
1515: } else if (!strcmp(r, "g")) {
1.1.1.2 root 1516: gdbstub_port = atoi(argv[optind++]);
1.1 root 1517: } else
1518: #ifdef USE_CODE_COPY
1519: if (!strcmp(r, "no-code-copy")) {
1520: code_copy_enabled = 0;
1521: } else
1522: #endif
1523: {
1524: usage();
1525: }
1526: }
1527: if (optind >= argc)
1528: usage();
1529: filename = argv[optind];
1530:
1531: /* Zero out regs */
1532: memset(regs, 0, sizeof(struct target_pt_regs));
1533:
1534: /* Zero out image_info */
1535: memset(info, 0, sizeof(struct image_info));
1536:
1537: /* Scan interp_prefix dir for replacement files. */
1538: init_paths(interp_prefix);
1539:
1540: /* NOTE: we need to init the CPU at this stage to get
1541: qemu_host_page_size */
1542: env = cpu_init();
1.1.1.2 root 1543: global_env = env;
1.1 root 1544:
1545: if (elf_exec(filename, argv+optind, environ, regs, info) != 0) {
1546: printf("Error loading %s\n", filename);
1547: _exit(1);
1548: }
1549:
1550: if (loglevel) {
1551: page_dump(logfile);
1552:
1553: fprintf(logfile, "start_brk 0x%08lx\n" , info->start_brk);
1554: fprintf(logfile, "end_code 0x%08lx\n" , info->end_code);
1555: fprintf(logfile, "start_code 0x%08lx\n" , info->start_code);
1556: fprintf(logfile, "end_data 0x%08lx\n" , info->end_data);
1557: fprintf(logfile, "start_stack 0x%08lx\n" , info->start_stack);
1558: fprintf(logfile, "brk 0x%08lx\n" , info->brk);
1559: fprintf(logfile, "entry 0x%08lx\n" , info->entry);
1560: }
1561:
1.1.1.3 ! root 1562: target_set_brk(info->brk);
1.1 root 1563: syscall_init();
1564: signal_init();
1565:
1566: /* build Task State */
1567: memset(ts, 0, sizeof(TaskState));
1568: env->opaque = ts;
1569: ts->used = 1;
1570: env->user_mode_only = 1;
1571:
1572: #if defined(TARGET_I386)
1573: cpu_x86_set_cpl(env, 3);
1574:
1575: env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
1576: env->hflags |= HF_PE_MASK;
1577: if (env->cpuid_features & CPUID_SSE) {
1578: env->cr[4] |= CR4_OSFXSR_MASK;
1579: env->hflags |= HF_OSFXSR_MASK;
1580: }
1581:
1582: /* flags setup : we activate the IRQs by default as in user mode */
1583: env->eflags |= IF_MASK;
1584:
1585: /* linux register setup */
1586: env->regs[R_EAX] = regs->eax;
1587: env->regs[R_EBX] = regs->ebx;
1588: env->regs[R_ECX] = regs->ecx;
1589: env->regs[R_EDX] = regs->edx;
1590: env->regs[R_ESI] = regs->esi;
1591: env->regs[R_EDI] = regs->edi;
1592: env->regs[R_EBP] = regs->ebp;
1593: env->regs[R_ESP] = regs->esp;
1594: env->eip = regs->eip;
1595:
1596: /* linux interrupt setup */
1.1.1.3 ! root 1597: env->idt.base = h2g(idt_table);
1.1 root 1598: env->idt.limit = sizeof(idt_table) - 1;
1599: set_idt(0, 0);
1600: set_idt(1, 0);
1601: set_idt(2, 0);
1602: set_idt(3, 3);
1603: set_idt(4, 3);
1604: set_idt(5, 3);
1605: set_idt(6, 0);
1606: set_idt(7, 0);
1607: set_idt(8, 0);
1608: set_idt(9, 0);
1609: set_idt(10, 0);
1610: set_idt(11, 0);
1611: set_idt(12, 0);
1612: set_idt(13, 0);
1613: set_idt(14, 0);
1614: set_idt(15, 0);
1615: set_idt(16, 0);
1616: set_idt(17, 0);
1617: set_idt(18, 0);
1618: set_idt(19, 0);
1619: set_idt(0x80, 3);
1620:
1621: /* linux segment setup */
1.1.1.3 ! root 1622: env->gdt.base = h2g(gdt_table);
1.1 root 1623: env->gdt.limit = sizeof(gdt_table) - 1;
1624: write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
1625: DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1626: (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
1627: write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
1628: DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
1629: (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
1630: cpu_x86_load_seg(env, R_CS, __USER_CS);
1631: cpu_x86_load_seg(env, R_DS, __USER_DS);
1632: cpu_x86_load_seg(env, R_ES, __USER_DS);
1633: cpu_x86_load_seg(env, R_SS, __USER_DS);
1634: cpu_x86_load_seg(env, R_FS, __USER_DS);
1635: cpu_x86_load_seg(env, R_GS, __USER_DS);
1636:
1637: #elif defined(TARGET_ARM)
1638: {
1639: int i;
1.1.1.3 ! root 1640: cpu_arm_set_model(env, ARM_CPUID_ARM1026);
1.1.1.2 root 1641: cpsr_write(env, regs->uregs[16], 0xffffffff);
1.1 root 1642: for(i = 0; i < 16; i++) {
1643: env->regs[i] = regs->uregs[i];
1644: }
1645: ts->stack_base = info->start_stack;
1646: ts->heap_base = info->brk;
1647: /* This will be filled in on the first SYS_HEAPINFO call. */
1648: ts->heap_limit = 0;
1649: }
1650: #elif defined(TARGET_SPARC)
1651: {
1652: int i;
1653: env->pc = regs->pc;
1654: env->npc = regs->npc;
1655: env->y = regs->y;
1656: for(i = 0; i < 8; i++)
1657: env->gregs[i] = regs->u_regs[i];
1658: for(i = 0; i < 8; i++)
1659: env->regwptr[i] = regs->u_regs[i + 8];
1660: }
1661: #elif defined(TARGET_PPC)
1662: {
1663: ppc_def_t *def;
1664: int i;
1665:
1666: /* Choose and initialise CPU */
1667: /* XXX: CPU model (or PVR) should be provided on command line */
1668: // ppc_find_by_name("750gx", &def);
1669: // ppc_find_by_name("750fx", &def);
1670: // ppc_find_by_name("750p", &def);
1671: ppc_find_by_name("750", &def);
1672: // ppc_find_by_name("G3", &def);
1673: // ppc_find_by_name("604r", &def);
1674: // ppc_find_by_name("604e", &def);
1675: // ppc_find_by_name("604", &def);
1676: if (def == NULL) {
1.1.1.2 root 1677: cpu_abort(env,
1.1 root 1678: "Unable to find PowerPC CPU definition\n");
1679: }
1.1.1.2 root 1680: cpu_ppc_register(env, def);
1.1 root 1681:
1682: for (i = 0; i < 32; i++) {
1683: if (i != 12 && i != 6 && i != 13)
1684: env->msr[i] = (regs->msr >> i) & 1;
1685: }
1686: env->nip = regs->nip;
1687: for(i = 0; i < 32; i++) {
1688: env->gpr[i] = regs->gpr[i];
1689: }
1690: }
1.1.1.2 root 1691: #elif defined(TARGET_MIPS)
1692: {
1693: int i;
1694:
1695: for(i = 0; i < 32; i++) {
1696: env->gpr[i] = regs->regs[i];
1697: }
1698: env->PC = regs->cp0_epc;
1699: }
1.1.1.3 ! root 1700: #elif defined(TARGET_SH4)
! 1701: {
! 1702: int i;
! 1703:
! 1704: for(i = 0; i < 16; i++) {
! 1705: env->gregs[i] = regs->regs[i];
! 1706: }
! 1707: env->pc = regs->pc;
! 1708: }
1.1 root 1709: #else
1710: #error unsupported target CPU
1711: #endif
1712:
1.1.1.2 root 1713: if (gdbstub_port) {
1714: gdbserver_start (gdbstub_port);
1.1 root 1715: gdb_handlesig(env, 0);
1716: }
1717: cpu_loop(env);
1718: /* never exits */
1719: return 0;
1720: }
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