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1.1 root 1: /*
2: * qemu user main
1.1.1.6 root 3: *
4: * Copyright (c) 2003-2008 Fabrice Bellard
1.1 root 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
1.1.1.8 root 17: * along with this program; if not, see <http://www.gnu.org/licenses/>.
1.1 root 18: */
19: #include <stdlib.h>
20: #include <stdio.h>
21: #include <stdarg.h>
22: #include <string.h>
23: #include <errno.h>
24: #include <unistd.h>
1.1.1.7 root 25: #include <sys/mman.h>
1.1.1.8 root 26: #include <sys/syscall.h>
1.1.1.11 root 27: #include <sys/resource.h>
1.1 root 28:
29: #include "qemu.h"
1.1.1.7 root 30: #include "qemu-common.h"
31: #include "cache-utils.h"
1.1.1.13 root 32: #include "cpu.h"
1.1.1.11 root 33: #include "tcg.h"
34: #include "qemu-timer.h"
1.1.1.7 root 35: #include "envlist.h"
1.1.1.15! root 36: #include "elf.h"
1.1 root 37:
38: #define DEBUG_LOGFILE "/tmp/qemu.log"
39:
1.1.1.7 root 40: char *exec_path;
41:
1.1.1.8 root 42: int singlestep;
1.1.1.14 root 43: const char *filename;
44: const char *argv0;
45: int gdbstub_port;
46: envlist_t *envlist;
47: const char *cpu_model;
1.1.1.9 root 48: unsigned long mmap_min_addr;
1.1.1.11 root 49: #if defined(CONFIG_USE_GUEST_BASE)
1.1.1.9 root 50: unsigned long guest_base;
51: int have_guest_base;
1.1.1.15! root 52: #if (TARGET_LONG_BITS == 32) && (HOST_LONG_BITS == 64)
! 53: /*
! 54: * When running 32-on-64 we should make sure we can fit all of the possible
! 55: * guest address space into a contiguous chunk of virtual host memory.
! 56: *
! 57: * This way we will never overlap with our own libraries or binaries or stack
! 58: * or anything else that QEMU maps.
! 59: */
! 60: unsigned long reserved_va = 0xf7000000;
! 61: #else
1.1.1.11 root 62: unsigned long reserved_va;
1.1.1.9 root 63: #endif
1.1.1.15! root 64: #endif
1.1.1.8 root 65:
1.1.1.14 root 66: static void usage(void);
67:
1.1.1.11 root 68: static const char *interp_prefix = CONFIG_QEMU_INTERP_PREFIX;
1.1.1.4 root 69: const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
1.1 root 70:
71: /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
72: we allocate a bigger stack. Need a better solution, for example
73: by remapping the process stack directly at the right place */
1.1.1.11 root 74: unsigned long guest_stack_size = 8 * 1024 * 1024UL;
1.1 root 75:
76: void gemu_log(const char *fmt, ...)
77: {
78: va_list ap;
79:
80: va_start(ap, fmt);
81: vfprintf(stderr, fmt, ap);
82: va_end(ap);
83: }
84:
1.1.1.7 root 85: #if defined(TARGET_I386)
1.1.1.15! root 86: int cpu_get_pic_interrupt(CPUX86State *env)
1.1 root 87: {
88: return -1;
89: }
1.1.1.7 root 90: #endif
1.1 root 91:
92: /* timers for rdtsc */
93:
1.1.1.4 root 94: #if 0
1.1 root 95:
96: static uint64_t emu_time;
97:
98: int64_t cpu_get_real_ticks(void)
99: {
100: return emu_time++;
101: }
102:
103: #endif
104:
1.1.1.9 root 105: #if defined(CONFIG_USE_NPTL)
1.1.1.7 root 106: /***********************************************************/
107: /* Helper routines for implementing atomic operations. */
108:
109: /* To implement exclusive operations we force all cpus to syncronise.
110: We don't require a full sync, only that no cpus are executing guest code.
111: The alternative is to map target atomic ops onto host equivalents,
112: which requires quite a lot of per host/target work. */
1.1.1.8 root 113: static pthread_mutex_t cpu_list_mutex = PTHREAD_MUTEX_INITIALIZER;
1.1.1.7 root 114: static pthread_mutex_t exclusive_lock = PTHREAD_MUTEX_INITIALIZER;
115: static pthread_cond_t exclusive_cond = PTHREAD_COND_INITIALIZER;
116: static pthread_cond_t exclusive_resume = PTHREAD_COND_INITIALIZER;
117: static int pending_cpus;
118:
119: /* Make sure everything is in a consistent state for calling fork(). */
120: void fork_start(void)
121: {
122: pthread_mutex_lock(&tb_lock);
123: pthread_mutex_lock(&exclusive_lock);
1.1.1.11 root 124: mmap_fork_start();
1.1.1.7 root 125: }
126:
127: void fork_end(int child)
128: {
1.1.1.11 root 129: mmap_fork_end(child);
1.1.1.7 root 130: if (child) {
131: /* Child processes created by fork() only have a single thread.
132: Discard information about the parent threads. */
133: first_cpu = thread_env;
134: thread_env->next_cpu = NULL;
135: pending_cpus = 0;
136: pthread_mutex_init(&exclusive_lock, NULL);
1.1.1.8 root 137: pthread_mutex_init(&cpu_list_mutex, NULL);
1.1.1.7 root 138: pthread_cond_init(&exclusive_cond, NULL);
139: pthread_cond_init(&exclusive_resume, NULL);
140: pthread_mutex_init(&tb_lock, NULL);
141: gdbserver_fork(thread_env);
142: } else {
143: pthread_mutex_unlock(&exclusive_lock);
144: pthread_mutex_unlock(&tb_lock);
145: }
146: }
147:
148: /* Wait for pending exclusive operations to complete. The exclusive lock
149: must be held. */
150: static inline void exclusive_idle(void)
151: {
152: while (pending_cpus) {
153: pthread_cond_wait(&exclusive_resume, &exclusive_lock);
154: }
155: }
156:
157: /* Start an exclusive operation.
158: Must only be called from outside cpu_arm_exec. */
159: static inline void start_exclusive(void)
160: {
1.1.1.15! root 161: CPUArchState *other;
1.1.1.7 root 162: pthread_mutex_lock(&exclusive_lock);
163: exclusive_idle();
164:
165: pending_cpus = 1;
166: /* Make all other cpus stop executing. */
167: for (other = first_cpu; other; other = other->next_cpu) {
168: if (other->running) {
169: pending_cpus++;
1.1.1.8 root 170: cpu_exit(other);
1.1.1.7 root 171: }
172: }
173: if (pending_cpus > 1) {
174: pthread_cond_wait(&exclusive_cond, &exclusive_lock);
175: }
176: }
177:
178: /* Finish an exclusive operation. */
179: static inline void end_exclusive(void)
180: {
181: pending_cpus = 0;
182: pthread_cond_broadcast(&exclusive_resume);
183: pthread_mutex_unlock(&exclusive_lock);
184: }
185:
186: /* Wait for exclusive ops to finish, and begin cpu execution. */
1.1.1.15! root 187: static inline void cpu_exec_start(CPUArchState *env)
1.1.1.7 root 188: {
189: pthread_mutex_lock(&exclusive_lock);
190: exclusive_idle();
191: env->running = 1;
192: pthread_mutex_unlock(&exclusive_lock);
193: }
194:
195: /* Mark cpu as not executing, and release pending exclusive ops. */
1.1.1.15! root 196: static inline void cpu_exec_end(CPUArchState *env)
1.1.1.7 root 197: {
198: pthread_mutex_lock(&exclusive_lock);
199: env->running = 0;
200: if (pending_cpus > 1) {
201: pending_cpus--;
202: if (pending_cpus == 1) {
203: pthread_cond_signal(&exclusive_cond);
204: }
205: }
206: exclusive_idle();
207: pthread_mutex_unlock(&exclusive_lock);
208: }
1.1.1.8 root 209:
210: void cpu_list_lock(void)
211: {
212: pthread_mutex_lock(&cpu_list_mutex);
213: }
214:
215: void cpu_list_unlock(void)
216: {
217: pthread_mutex_unlock(&cpu_list_mutex);
218: }
1.1.1.9 root 219: #else /* if !CONFIG_USE_NPTL */
1.1.1.7 root 220: /* These are no-ops because we are not threadsafe. */
1.1.1.15! root 221: static inline void cpu_exec_start(CPUArchState *env)
1.1.1.7 root 222: {
223: }
224:
1.1.1.15! root 225: static inline void cpu_exec_end(CPUArchState *env)
1.1.1.7 root 226: {
227: }
228:
229: static inline void start_exclusive(void)
230: {
231: }
232:
233: static inline void end_exclusive(void)
234: {
235: }
236:
237: void fork_start(void)
238: {
239: }
240:
241: void fork_end(int child)
242: {
243: if (child) {
244: gdbserver_fork(thread_env);
245: }
246: }
1.1.1.8 root 247:
248: void cpu_list_lock(void)
249: {
250: }
251:
252: void cpu_list_unlock(void)
253: {
254: }
1.1.1.7 root 255: #endif
256:
257:
1.1 root 258: #ifdef TARGET_I386
259: /***********************************************************/
260: /* CPUX86 core interface */
261:
1.1.1.15! root 262: void cpu_smm_update(CPUX86State *env)
1.1.1.5 root 263: {
264: }
265:
1.1 root 266: uint64_t cpu_get_tsc(CPUX86State *env)
267: {
268: return cpu_get_real_ticks();
269: }
270:
1.1.1.6 root 271: static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
1.1 root 272: int flags)
273: {
274: unsigned int e1, e2;
1.1.1.3 root 275: uint32_t *p;
1.1 root 276: e1 = (addr << 16) | (limit & 0xffff);
277: e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
278: e2 |= flags;
1.1.1.3 root 279: p = ptr;
1.1.1.7 root 280: p[0] = tswap32(e1);
281: p[1] = tswap32(e2);
1.1 root 282: }
283:
1.1.1.7 root 284: static uint64_t *idt_table;
285: #ifdef TARGET_X86_64
1.1.1.6 root 286: static void set_gate64(void *ptr, unsigned int type, unsigned int dpl,
287: uint64_t addr, unsigned int sel)
1.1 root 288: {
1.1.1.6 root 289: uint32_t *p, e1, e2;
1.1 root 290: e1 = (addr & 0xffff) | (sel << 16);
291: e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
1.1.1.3 root 292: p = ptr;
1.1.1.6 root 293: p[0] = tswap32(e1);
294: p[1] = tswap32(e2);
295: p[2] = tswap32(addr >> 32);
296: p[3] = 0;
1.1 root 297: }
1.1.1.6 root 298: /* only dpl matters as we do only user space emulation */
299: static void set_idt(int n, unsigned int dpl)
300: {
301: set_gate64(idt_table + n * 2, 0, dpl, 0, 0);
302: }
303: #else
304: static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
305: uint32_t addr, unsigned int sel)
306: {
307: uint32_t *p, e1, e2;
308: e1 = (addr & 0xffff) | (sel << 16);
309: e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
310: p = ptr;
311: p[0] = tswap32(e1);
312: p[1] = tswap32(e2);
313: }
314:
1.1 root 315: /* only dpl matters as we do only user space emulation */
316: static void set_idt(int n, unsigned int dpl)
317: {
318: set_gate(idt_table + n, 0, dpl, 0, 0);
319: }
1.1.1.6 root 320: #endif
1.1 root 321:
322: void cpu_loop(CPUX86State *env)
323: {
324: int trapnr;
1.1.1.6 root 325: abi_ulong pc;
1.1 root 326: target_siginfo_t info;
327:
328: for(;;) {
329: trapnr = cpu_x86_exec(env);
330: switch(trapnr) {
331: case 0x80:
1.1.1.6 root 332: /* linux syscall from int $0x80 */
333: env->regs[R_EAX] = do_syscall(env,
334: env->regs[R_EAX],
1.1 root 335: env->regs[R_EBX],
336: env->regs[R_ECX],
337: env->regs[R_EDX],
338: env->regs[R_ESI],
339: env->regs[R_EDI],
1.1.1.13 root 340: env->regs[R_EBP],
341: 0, 0);
1.1 root 342: break;
1.1.1.6 root 343: #ifndef TARGET_ABI32
344: case EXCP_SYSCALL:
1.1.1.13 root 345: /* linux syscall from syscall instruction */
1.1.1.6 root 346: env->regs[R_EAX] = do_syscall(env,
347: env->regs[R_EAX],
348: env->regs[R_EDI],
349: env->regs[R_ESI],
350: env->regs[R_EDX],
351: env->regs[10],
352: env->regs[8],
1.1.1.13 root 353: env->regs[9],
354: 0, 0);
1.1.1.6 root 355: env->eip = env->exception_next_eip;
356: break;
357: #endif
1.1 root 358: case EXCP0B_NOSEG:
359: case EXCP0C_STACK:
360: info.si_signo = SIGBUS;
361: info.si_errno = 0;
362: info.si_code = TARGET_SI_KERNEL;
363: info._sifields._sigfault._addr = 0;
1.1.1.7 root 364: queue_signal(env, info.si_signo, &info);
1.1 root 365: break;
366: case EXCP0D_GPF:
1.1.1.6 root 367: /* XXX: potential problem if ABI32 */
368: #ifndef TARGET_X86_64
1.1 root 369: if (env->eflags & VM_MASK) {
370: handle_vm86_fault(env);
1.1.1.6 root 371: } else
372: #endif
373: {
1.1 root 374: info.si_signo = SIGSEGV;
375: info.si_errno = 0;
376: info.si_code = TARGET_SI_KERNEL;
377: info._sifields._sigfault._addr = 0;
1.1.1.7 root 378: queue_signal(env, info.si_signo, &info);
1.1 root 379: }
380: break;
381: case EXCP0E_PAGE:
382: info.si_signo = SIGSEGV;
383: info.si_errno = 0;
384: if (!(env->error_code & 1))
385: info.si_code = TARGET_SEGV_MAPERR;
386: else
387: info.si_code = TARGET_SEGV_ACCERR;
388: info._sifields._sigfault._addr = env->cr[2];
1.1.1.7 root 389: queue_signal(env, info.si_signo, &info);
1.1 root 390: break;
391: case EXCP00_DIVZ:
1.1.1.6 root 392: #ifndef TARGET_X86_64
1.1 root 393: if (env->eflags & VM_MASK) {
394: handle_vm86_trap(env, trapnr);
1.1.1.6 root 395: } else
396: #endif
397: {
1.1 root 398: /* division by zero */
399: info.si_signo = SIGFPE;
400: info.si_errno = 0;
401: info.si_code = TARGET_FPE_INTDIV;
402: info._sifields._sigfault._addr = env->eip;
1.1.1.7 root 403: queue_signal(env, info.si_signo, &info);
1.1 root 404: }
405: break;
1.1.1.7 root 406: case EXCP01_DB:
1.1 root 407: case EXCP03_INT3:
1.1.1.6 root 408: #ifndef TARGET_X86_64
1.1 root 409: if (env->eflags & VM_MASK) {
410: handle_vm86_trap(env, trapnr);
1.1.1.6 root 411: } else
412: #endif
413: {
1.1 root 414: info.si_signo = SIGTRAP;
415: info.si_errno = 0;
1.1.1.7 root 416: if (trapnr == EXCP01_DB) {
1.1 root 417: info.si_code = TARGET_TRAP_BRKPT;
418: info._sifields._sigfault._addr = env->eip;
419: } else {
420: info.si_code = TARGET_SI_KERNEL;
421: info._sifields._sigfault._addr = 0;
422: }
1.1.1.7 root 423: queue_signal(env, info.si_signo, &info);
1.1 root 424: }
425: break;
426: case EXCP04_INTO:
427: case EXCP05_BOUND:
1.1.1.6 root 428: #ifndef TARGET_X86_64
1.1 root 429: if (env->eflags & VM_MASK) {
430: handle_vm86_trap(env, trapnr);
1.1.1.6 root 431: } else
432: #endif
433: {
1.1 root 434: info.si_signo = SIGSEGV;
435: info.si_errno = 0;
436: info.si_code = TARGET_SI_KERNEL;
437: info._sifields._sigfault._addr = 0;
1.1.1.7 root 438: queue_signal(env, info.si_signo, &info);
1.1 root 439: }
440: break;
441: case EXCP06_ILLOP:
442: info.si_signo = SIGILL;
443: info.si_errno = 0;
444: info.si_code = TARGET_ILL_ILLOPN;
445: info._sifields._sigfault._addr = env->eip;
1.1.1.7 root 446: queue_signal(env, info.si_signo, &info);
1.1 root 447: break;
448: case EXCP_INTERRUPT:
449: /* just indicate that signals should be handled asap */
450: break;
451: case EXCP_DEBUG:
452: {
453: int sig;
454:
455: sig = gdb_handlesig (env, TARGET_SIGTRAP);
456: if (sig)
457: {
458: info.si_signo = sig;
459: info.si_errno = 0;
460: info.si_code = TARGET_TRAP_BRKPT;
1.1.1.7 root 461: queue_signal(env, info.si_signo, &info);
1.1 root 462: }
463: }
464: break;
465: default:
466: pc = env->segs[R_CS].base + env->eip;
1.1.1.6 root 467: fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
1.1 root 468: (long)pc, trapnr);
469: abort();
470: }
471: process_pending_signals(env);
472: }
473: }
474: #endif
475:
476: #ifdef TARGET_ARM
477:
1.1.1.15! root 478: #define get_user_code_u32(x, gaddr, doswap) \
! 479: ({ abi_long __r = get_user_u32((x), (gaddr)); \
! 480: if (!__r && (doswap)) { \
! 481: (x) = bswap32(x); \
! 482: } \
! 483: __r; \
! 484: })
! 485:
! 486: #define get_user_code_u16(x, gaddr, doswap) \
! 487: ({ abi_long __r = get_user_u16((x), (gaddr)); \
! 488: if (!__r && (doswap)) { \
! 489: (x) = bswap16(x); \
! 490: } \
! 491: __r; \
! 492: })
! 493:
1.1.1.14 root 494: /*
495: * See the Linux kernel's Documentation/arm/kernel_user_helpers.txt
496: * Input:
497: * r0 = pointer to oldval
498: * r1 = pointer to newval
499: * r2 = pointer to target value
500: *
501: * Output:
502: * r0 = 0 if *ptr was changed, non-0 if no exchange happened
503: * C set if *ptr was changed, clear if no exchange happened
504: *
505: * Note segv's in kernel helpers are a bit tricky, we can set the
506: * data address sensibly but the PC address is just the entry point.
507: */
508: static void arm_kernel_cmpxchg64_helper(CPUARMState *env)
509: {
510: uint64_t oldval, newval, val;
511: uint32_t addr, cpsr;
512: target_siginfo_t info;
513:
514: /* Based on the 32 bit code in do_kernel_trap */
515:
516: /* XXX: This only works between threads, not between processes.
517: It's probably possible to implement this with native host
518: operations. However things like ldrex/strex are much harder so
519: there's not much point trying. */
520: start_exclusive();
521: cpsr = cpsr_read(env);
522: addr = env->regs[2];
523:
524: if (get_user_u64(oldval, env->regs[0])) {
525: env->cp15.c6_data = env->regs[0];
526: goto segv;
527: };
528:
529: if (get_user_u64(newval, env->regs[1])) {
530: env->cp15.c6_data = env->regs[1];
531: goto segv;
532: };
533:
534: if (get_user_u64(val, addr)) {
535: env->cp15.c6_data = addr;
536: goto segv;
537: }
538:
539: if (val == oldval) {
540: val = newval;
541:
542: if (put_user_u64(val, addr)) {
543: env->cp15.c6_data = addr;
544: goto segv;
545: };
546:
547: env->regs[0] = 0;
548: cpsr |= CPSR_C;
549: } else {
550: env->regs[0] = -1;
551: cpsr &= ~CPSR_C;
552: }
553: cpsr_write(env, cpsr, CPSR_C);
554: end_exclusive();
555: return;
556:
557: segv:
558: end_exclusive();
559: /* We get the PC of the entry address - which is as good as anything,
560: on a real kernel what you get depends on which mode it uses. */
561: info.si_signo = SIGSEGV;
562: info.si_errno = 0;
563: /* XXX: check env->error_code */
564: info.si_code = TARGET_SEGV_MAPERR;
565: info._sifields._sigfault._addr = env->cp15.c6_data;
566: queue_signal(env, info.si_signo, &info);
567:
568: end_exclusive();
569: }
570:
1.1.1.7 root 571: /* Handle a jump to the kernel code page. */
572: static int
573: do_kernel_trap(CPUARMState *env)
574: {
575: uint32_t addr;
576: uint32_t cpsr;
577: uint32_t val;
578:
579: switch (env->regs[15]) {
580: case 0xffff0fa0: /* __kernel_memory_barrier */
581: /* ??? No-op. Will need to do better for SMP. */
582: break;
583: case 0xffff0fc0: /* __kernel_cmpxchg */
584: /* XXX: This only works between threads, not between processes.
585: It's probably possible to implement this with native host
586: operations. However things like ldrex/strex are much harder so
587: there's not much point trying. */
588: start_exclusive();
589: cpsr = cpsr_read(env);
590: addr = env->regs[2];
591: /* FIXME: This should SEGV if the access fails. */
592: if (get_user_u32(val, addr))
593: val = ~env->regs[0];
594: if (val == env->regs[0]) {
595: val = env->regs[1];
596: /* FIXME: Check for segfaults. */
597: put_user_u32(val, addr);
598: env->regs[0] = 0;
599: cpsr |= CPSR_C;
600: } else {
601: env->regs[0] = -1;
602: cpsr &= ~CPSR_C;
603: }
604: cpsr_write(env, cpsr, CPSR_C);
605: end_exclusive();
606: break;
607: case 0xffff0fe0: /* __kernel_get_tls */
608: env->regs[0] = env->cp15.c13_tls2;
609: break;
1.1.1.14 root 610: case 0xffff0f60: /* __kernel_cmpxchg64 */
611: arm_kernel_cmpxchg64_helper(env);
612: break;
613:
1.1.1.7 root 614: default:
615: return 1;
616: }
617: /* Jump back to the caller. */
618: addr = env->regs[14];
619: if (addr & 1) {
620: env->thumb = 1;
621: addr &= ~1;
622: }
623: env->regs[15] = addr;
624:
625: return 0;
626: }
627:
1.1.1.9 root 628: static int do_strex(CPUARMState *env)
629: {
630: uint32_t val;
631: int size;
632: int rc = 1;
633: int segv = 0;
634: uint32_t addr;
635: start_exclusive();
636: addr = env->exclusive_addr;
637: if (addr != env->exclusive_test) {
638: goto fail;
639: }
640: size = env->exclusive_info & 0xf;
641: switch (size) {
642: case 0:
643: segv = get_user_u8(val, addr);
644: break;
645: case 1:
646: segv = get_user_u16(val, addr);
647: break;
648: case 2:
649: case 3:
650: segv = get_user_u32(val, addr);
651: break;
1.1.1.11 root 652: default:
653: abort();
1.1.1.9 root 654: }
655: if (segv) {
656: env->cp15.c6_data = addr;
657: goto done;
658: }
659: if (val != env->exclusive_val) {
660: goto fail;
661: }
662: if (size == 3) {
663: segv = get_user_u32(val, addr + 4);
664: if (segv) {
665: env->cp15.c6_data = addr + 4;
666: goto done;
667: }
668: if (val != env->exclusive_high) {
669: goto fail;
670: }
671: }
672: val = env->regs[(env->exclusive_info >> 8) & 0xf];
673: switch (size) {
674: case 0:
675: segv = put_user_u8(val, addr);
676: break;
677: case 1:
678: segv = put_user_u16(val, addr);
679: break;
680: case 2:
681: case 3:
682: segv = put_user_u32(val, addr);
683: break;
684: }
685: if (segv) {
686: env->cp15.c6_data = addr;
687: goto done;
688: }
689: if (size == 3) {
690: val = env->regs[(env->exclusive_info >> 12) & 0xf];
1.1.1.12 root 691: segv = put_user_u32(val, addr + 4);
1.1.1.9 root 692: if (segv) {
693: env->cp15.c6_data = addr + 4;
694: goto done;
695: }
696: }
697: rc = 0;
698: fail:
699: env->regs[15] += 4;
700: env->regs[(env->exclusive_info >> 4) & 0xf] = rc;
701: done:
702: end_exclusive();
703: return segv;
704: }
705:
1.1 root 706: void cpu_loop(CPUARMState *env)
707: {
708: int trapnr;
709: unsigned int n, insn;
710: target_siginfo_t info;
1.1.1.2 root 711: uint32_t addr;
1.1.1.6 root 712:
1.1 root 713: for(;;) {
1.1.1.7 root 714: cpu_exec_start(env);
1.1 root 715: trapnr = cpu_arm_exec(env);
1.1.1.7 root 716: cpu_exec_end(env);
1.1 root 717: switch(trapnr) {
718: case EXCP_UDEF:
719: {
720: TaskState *ts = env->opaque;
721: uint32_t opcode;
1.1.1.7 root 722: int rc;
1.1 root 723:
724: /* we handle the FPU emulation here, as Linux */
725: /* we get the opcode */
1.1.1.6 root 726: /* FIXME - what to do if get_user() fails? */
1.1.1.15! root 727: get_user_code_u32(opcode, env->regs[15], env->bswap_code);
1.1.1.6 root 728:
1.1.1.7 root 729: rc = EmulateAll(opcode, &ts->fpa, env);
730: if (rc == 0) { /* illegal instruction */
1.1 root 731: info.si_signo = SIGILL;
732: info.si_errno = 0;
733: info.si_code = TARGET_ILL_ILLOPN;
734: info._sifields._sigfault._addr = env->regs[15];
1.1.1.7 root 735: queue_signal(env, info.si_signo, &info);
736: } else if (rc < 0) { /* FP exception */
737: int arm_fpe=0;
738:
739: /* translate softfloat flags to FPSR flags */
740: if (-rc & float_flag_invalid)
741: arm_fpe |= BIT_IOC;
742: if (-rc & float_flag_divbyzero)
743: arm_fpe |= BIT_DZC;
744: if (-rc & float_flag_overflow)
745: arm_fpe |= BIT_OFC;
746: if (-rc & float_flag_underflow)
747: arm_fpe |= BIT_UFC;
748: if (-rc & float_flag_inexact)
749: arm_fpe |= BIT_IXC;
750:
751: FPSR fpsr = ts->fpa.fpsr;
752: //printf("fpsr 0x%x, arm_fpe 0x%x\n",fpsr,arm_fpe);
753:
754: if (fpsr & (arm_fpe << 16)) { /* exception enabled? */
755: info.si_signo = SIGFPE;
756: info.si_errno = 0;
757:
758: /* ordered by priority, least first */
759: if (arm_fpe & BIT_IXC) info.si_code = TARGET_FPE_FLTRES;
760: if (arm_fpe & BIT_UFC) info.si_code = TARGET_FPE_FLTUND;
761: if (arm_fpe & BIT_OFC) info.si_code = TARGET_FPE_FLTOVF;
762: if (arm_fpe & BIT_DZC) info.si_code = TARGET_FPE_FLTDIV;
763: if (arm_fpe & BIT_IOC) info.si_code = TARGET_FPE_FLTINV;
764:
765: info._sifields._sigfault._addr = env->regs[15];
766: queue_signal(env, info.si_signo, &info);
767: } else {
768: env->regs[15] += 4;
769: }
770:
771: /* accumulate unenabled exceptions */
772: if ((!(fpsr & BIT_IXE)) && (arm_fpe & BIT_IXC))
773: fpsr |= BIT_IXC;
774: if ((!(fpsr & BIT_UFE)) && (arm_fpe & BIT_UFC))
775: fpsr |= BIT_UFC;
776: if ((!(fpsr & BIT_OFE)) && (arm_fpe & BIT_OFC))
777: fpsr |= BIT_OFC;
778: if ((!(fpsr & BIT_DZE)) && (arm_fpe & BIT_DZC))
779: fpsr |= BIT_DZC;
780: if ((!(fpsr & BIT_IOE)) && (arm_fpe & BIT_IOC))
781: fpsr |= BIT_IOC;
782: ts->fpa.fpsr=fpsr;
783: } else { /* everything OK */
1.1 root 784: /* increment PC */
785: env->regs[15] += 4;
786: }
787: }
788: break;
789: case EXCP_SWI:
1.1.1.3 root 790: case EXCP_BKPT:
1.1 root 791: {
1.1.1.3 root 792: env->eabi = 1;
1.1 root 793: /* system call */
1.1.1.3 root 794: if (trapnr == EXCP_BKPT) {
795: if (env->thumb) {
1.1.1.6 root 796: /* FIXME - what to do if get_user() fails? */
1.1.1.15! root 797: get_user_code_u16(insn, env->regs[15], env->bswap_code);
1.1.1.3 root 798: n = insn & 0xff;
799: env->regs[15] += 2;
800: } else {
1.1.1.6 root 801: /* FIXME - what to do if get_user() fails? */
1.1.1.15! root 802: get_user_code_u32(insn, env->regs[15], env->bswap_code);
1.1.1.3 root 803: n = (insn & 0xf) | ((insn >> 4) & 0xff0);
804: env->regs[15] += 4;
805: }
1.1 root 806: } else {
1.1.1.3 root 807: if (env->thumb) {
1.1.1.6 root 808: /* FIXME - what to do if get_user() fails? */
1.1.1.15! root 809: get_user_code_u16(insn, env->regs[15] - 2,
! 810: env->bswap_code);
1.1.1.3 root 811: n = insn & 0xff;
812: } else {
1.1.1.6 root 813: /* FIXME - what to do if get_user() fails? */
1.1.1.15! root 814: get_user_code_u32(insn, env->regs[15] - 4,
! 815: env->bswap_code);
1.1.1.3 root 816: n = insn & 0xffffff;
817: }
1.1 root 818: }
819:
820: if (n == ARM_NR_cacheflush) {
1.1.1.13 root 821: /* nop */
1.1 root 822: } else if (n == ARM_NR_semihosting
823: || n == ARM_NR_thumb_semihosting) {
824: env->regs[0] = do_arm_semihosting (env);
1.1.1.3 root 825: } else if (n == 0 || n >= ARM_SYSCALL_BASE
1.1 root 826: || (env->thumb && n == ARM_THUMB_SYSCALL)) {
827: /* linux syscall */
1.1.1.3 root 828: if (env->thumb || n == 0) {
1.1 root 829: n = env->regs[7];
830: } else {
831: n -= ARM_SYSCALL_BASE;
1.1.1.3 root 832: env->eabi = 0;
1.1 root 833: }
1.1.1.7 root 834: if ( n > ARM_NR_BASE) {
835: switch (n) {
836: case ARM_NR_cacheflush:
1.1.1.13 root 837: /* nop */
1.1.1.7 root 838: break;
839: case ARM_NR_set_tls:
840: cpu_set_tls(env, env->regs[0]);
841: env->regs[0] = 0;
842: break;
843: default:
844: gemu_log("qemu: Unsupported ARM syscall: 0x%x\n",
845: n);
846: env->regs[0] = -TARGET_ENOSYS;
847: break;
848: }
849: } else {
850: env->regs[0] = do_syscall(env,
851: n,
852: env->regs[0],
853: env->regs[1],
854: env->regs[2],
855: env->regs[3],
856: env->regs[4],
1.1.1.13 root 857: env->regs[5],
858: 0, 0);
1.1.1.7 root 859: }
1.1 root 860: } else {
861: goto error;
862: }
863: }
864: break;
865: case EXCP_INTERRUPT:
866: /* just indicate that signals should be handled asap */
867: break;
868: case EXCP_PREFETCH_ABORT:
1.1.1.7 root 869: addr = env->cp15.c6_insn;
1.1.1.2 root 870: goto do_segv;
1.1 root 871: case EXCP_DATA_ABORT:
1.1.1.7 root 872: addr = env->cp15.c6_data;
1.1.1.2 root 873: do_segv:
1.1 root 874: {
875: info.si_signo = SIGSEGV;
876: info.si_errno = 0;
877: /* XXX: check env->error_code */
878: info.si_code = TARGET_SEGV_MAPERR;
1.1.1.2 root 879: info._sifields._sigfault._addr = addr;
1.1.1.7 root 880: queue_signal(env, info.si_signo, &info);
1.1 root 881: }
882: break;
883: case EXCP_DEBUG:
884: {
885: int sig;
886:
887: sig = gdb_handlesig (env, TARGET_SIGTRAP);
888: if (sig)
889: {
890: info.si_signo = sig;
891: info.si_errno = 0;
892: info.si_code = TARGET_TRAP_BRKPT;
1.1.1.7 root 893: queue_signal(env, info.si_signo, &info);
1.1 root 894: }
895: }
896: break;
1.1.1.7 root 897: case EXCP_KERNEL_TRAP:
898: if (do_kernel_trap(env))
899: goto error;
900: break;
1.1.1.9 root 901: case EXCP_STREX:
902: if (do_strex(env)) {
903: addr = env->cp15.c6_data;
904: goto do_segv;
905: }
906: break;
1.1 root 907: default:
908: error:
1.1.1.6 root 909: fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1.1 root 910: trapnr);
911: cpu_dump_state(env, stderr, fprintf, 0);
912: abort();
913: }
914: process_pending_signals(env);
915: }
916: }
917:
918: #endif
919:
1.1.1.13 root 920: #ifdef TARGET_UNICORE32
921:
1.1.1.15! root 922: void cpu_loop(CPUUniCore32State *env)
1.1.1.13 root 923: {
924: int trapnr;
925: unsigned int n, insn;
926: target_siginfo_t info;
927:
928: for (;;) {
929: cpu_exec_start(env);
930: trapnr = uc32_cpu_exec(env);
931: cpu_exec_end(env);
932: switch (trapnr) {
933: case UC32_EXCP_PRIV:
934: {
935: /* system call */
936: get_user_u32(insn, env->regs[31] - 4);
937: n = insn & 0xffffff;
938:
939: if (n >= UC32_SYSCALL_BASE) {
940: /* linux syscall */
941: n -= UC32_SYSCALL_BASE;
942: if (n == UC32_SYSCALL_NR_set_tls) {
943: cpu_set_tls(env, env->regs[0]);
944: env->regs[0] = 0;
945: } else {
946: env->regs[0] = do_syscall(env,
947: n,
948: env->regs[0],
949: env->regs[1],
950: env->regs[2],
951: env->regs[3],
952: env->regs[4],
953: env->regs[5],
954: 0, 0);
955: }
956: } else {
957: goto error;
958: }
959: }
960: break;
961: case UC32_EXCP_TRAP:
962: info.si_signo = SIGSEGV;
963: info.si_errno = 0;
964: /* XXX: check env->error_code */
965: info.si_code = TARGET_SEGV_MAPERR;
966: info._sifields._sigfault._addr = env->cp0.c4_faultaddr;
967: queue_signal(env, info.si_signo, &info);
968: break;
969: case EXCP_INTERRUPT:
970: /* just indicate that signals should be handled asap */
971: break;
972: case EXCP_DEBUG:
973: {
974: int sig;
975:
976: sig = gdb_handlesig(env, TARGET_SIGTRAP);
977: if (sig) {
978: info.si_signo = sig;
979: info.si_errno = 0;
980: info.si_code = TARGET_TRAP_BRKPT;
981: queue_signal(env, info.si_signo, &info);
982: }
983: }
984: break;
985: default:
986: goto error;
987: }
988: process_pending_signals(env);
989: }
990:
991: error:
992: fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr);
993: cpu_dump_state(env, stderr, fprintf, 0);
994: abort();
995: }
996: #endif
997:
1.1 root 998: #ifdef TARGET_SPARC
1.1.1.7 root 999: #define SPARC64_STACK_BIAS 2047
1.1 root 1000:
1001: //#define DEBUG_WIN
1002:
1003: /* WARNING: dealing with register windows _is_ complicated. More info
1004: can be found at http://www.sics.se/~psm/sparcstack.html */
1005: static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
1006: {
1.1.1.7 root 1007: index = (index + cwp * 16) % (16 * env->nwindows);
1.1 root 1008: /* wrap handling : if cwp is on the last window, then we use the
1009: registers 'after' the end */
1.1.1.7 root 1010: if (index < 8 && env->cwp == env->nwindows - 1)
1011: index += 16 * env->nwindows;
1.1 root 1012: return index;
1013: }
1014:
1015: /* save the register window 'cwp1' */
1016: static inline void save_window_offset(CPUSPARCState *env, int cwp1)
1017: {
1018: unsigned int i;
1.1.1.6 root 1019: abi_ulong sp_ptr;
1020:
1.1.1.3 root 1021: sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
1.1.1.7 root 1022: #ifdef TARGET_SPARC64
1023: if (sp_ptr & 3)
1024: sp_ptr += SPARC64_STACK_BIAS;
1025: #endif
1.1 root 1026: #if defined(DEBUG_WIN)
1.1.1.7 root 1027: printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n",
1028: sp_ptr, cwp1);
1.1 root 1029: #endif
1030: for(i = 0; i < 16; i++) {
1.1.1.6 root 1031: /* FIXME - what to do if put_user() fails? */
1032: put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
1033: sp_ptr += sizeof(abi_ulong);
1.1 root 1034: }
1035: }
1036:
1037: static void save_window(CPUSPARCState *env)
1038: {
1.1.1.4 root 1039: #ifndef TARGET_SPARC64
1.1 root 1040: unsigned int new_wim;
1.1.1.7 root 1041: new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) &
1042: ((1LL << env->nwindows) - 1);
1043: save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
1.1 root 1044: env->wim = new_wim;
1.1.1.4 root 1045: #else
1.1.1.7 root 1046: save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
1.1.1.4 root 1047: env->cansave++;
1048: env->canrestore--;
1049: #endif
1.1 root 1050: }
1051:
1052: static void restore_window(CPUSPARCState *env)
1053: {
1.1.1.7 root 1054: #ifndef TARGET_SPARC64
1055: unsigned int new_wim;
1056: #endif
1057: unsigned int i, cwp1;
1.1.1.6 root 1058: abi_ulong sp_ptr;
1059:
1.1.1.7 root 1060: #ifndef TARGET_SPARC64
1061: new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) &
1062: ((1LL << env->nwindows) - 1);
1063: #endif
1.1.1.6 root 1064:
1.1 root 1065: /* restore the invalid window */
1.1.1.7 root 1066: cwp1 = cpu_cwp_inc(env, env->cwp + 1);
1.1.1.3 root 1067: sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
1.1.1.7 root 1068: #ifdef TARGET_SPARC64
1069: if (sp_ptr & 3)
1070: sp_ptr += SPARC64_STACK_BIAS;
1071: #endif
1.1 root 1072: #if defined(DEBUG_WIN)
1.1.1.7 root 1073: printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n",
1074: sp_ptr, cwp1);
1.1 root 1075: #endif
1076: for(i = 0; i < 16; i++) {
1.1.1.6 root 1077: /* FIXME - what to do if get_user() fails? */
1078: get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
1079: sp_ptr += sizeof(abi_ulong);
1.1 root 1080: }
1.1.1.4 root 1081: #ifdef TARGET_SPARC64
1082: env->canrestore++;
1.1.1.7 root 1083: if (env->cleanwin < env->nwindows - 1)
1084: env->cleanwin++;
1.1.1.4 root 1085: env->cansave--;
1.1.1.7 root 1086: #else
1087: env->wim = new_wim;
1.1.1.4 root 1088: #endif
1.1 root 1089: }
1090:
1091: static void flush_windows(CPUSPARCState *env)
1092: {
1093: int offset, cwp1;
1094:
1095: offset = 1;
1096: for(;;) {
1097: /* if restore would invoke restore_window(), then we can stop */
1.1.1.7 root 1098: cwp1 = cpu_cwp_inc(env, env->cwp + offset);
1099: #ifndef TARGET_SPARC64
1.1 root 1100: if (env->wim & (1 << cwp1))
1101: break;
1.1.1.7 root 1102: #else
1103: if (env->canrestore == 0)
1104: break;
1105: env->cansave++;
1106: env->canrestore--;
1107: #endif
1.1 root 1108: save_window_offset(env, cwp1);
1109: offset++;
1110: }
1.1.1.7 root 1111: cwp1 = cpu_cwp_inc(env, env->cwp + 1);
1112: #ifndef TARGET_SPARC64
1.1 root 1113: /* set wim so that restore will reload the registers */
1114: env->wim = 1 << cwp1;
1.1.1.7 root 1115: #endif
1.1 root 1116: #if defined(DEBUG_WIN)
1117: printf("flush_windows: nb=%d\n", offset - 1);
1118: #endif
1119: }
1120:
1121: void cpu_loop (CPUSPARCState *env)
1122: {
1.1.1.11 root 1123: int trapnr;
1124: abi_long ret;
1.1 root 1125: target_siginfo_t info;
1.1.1.6 root 1126:
1.1 root 1127: while (1) {
1128: trapnr = cpu_sparc_exec (env);
1.1.1.6 root 1129:
1.1 root 1130: switch (trapnr) {
1.1.1.4 root 1131: #ifndef TARGET_SPARC64
1.1.1.6 root 1132: case 0x88:
1.1 root 1133: case 0x90:
1.1.1.4 root 1134: #else
1.1.1.6 root 1135: case 0x110:
1.1.1.4 root 1136: case 0x16d:
1137: #endif
1.1 root 1138: ret = do_syscall (env, env->gregs[1],
1.1.1.6 root 1139: env->regwptr[0], env->regwptr[1],
1140: env->regwptr[2], env->regwptr[3],
1.1.1.13 root 1141: env->regwptr[4], env->regwptr[5],
1142: 0, 0);
1.1.1.11 root 1143: if ((abi_ulong)ret >= (abi_ulong)(-515)) {
1.1.1.6 root 1144: #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
1.1.1.5 root 1145: env->xcc |= PSR_CARRY;
1146: #else
1.1 root 1147: env->psr |= PSR_CARRY;
1.1.1.5 root 1148: #endif
1.1 root 1149: ret = -ret;
1150: } else {
1.1.1.6 root 1151: #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
1.1.1.5 root 1152: env->xcc &= ~PSR_CARRY;
1153: #else
1.1 root 1154: env->psr &= ~PSR_CARRY;
1.1.1.5 root 1155: #endif
1.1 root 1156: }
1157: env->regwptr[0] = ret;
1158: /* next instruction */
1159: env->pc = env->npc;
1160: env->npc = env->npc + 4;
1161: break;
1162: case 0x83: /* flush windows */
1.1.1.6 root 1163: #ifdef TARGET_ABI32
1164: case 0x103:
1165: #endif
1.1 root 1166: flush_windows(env);
1167: /* next instruction */
1168: env->pc = env->npc;
1169: env->npc = env->npc + 4;
1170: break;
1171: #ifndef TARGET_SPARC64
1172: case TT_WIN_OVF: /* window overflow */
1173: save_window(env);
1174: break;
1175: case TT_WIN_UNF: /* window underflow */
1176: restore_window(env);
1177: break;
1178: case TT_TFAULT:
1179: case TT_DFAULT:
1180: {
1.1.1.14 root 1181: info.si_signo = TARGET_SIGSEGV;
1.1 root 1182: info.si_errno = 0;
1183: /* XXX: check env->error_code */
1184: info.si_code = TARGET_SEGV_MAPERR;
1185: info._sifields._sigfault._addr = env->mmuregs[4];
1.1.1.7 root 1186: queue_signal(env, info.si_signo, &info);
1.1 root 1187: }
1188: break;
1189: #else
1.1.1.4 root 1190: case TT_SPILL: /* window overflow */
1191: save_window(env);
1192: break;
1193: case TT_FILL: /* window underflow */
1194: restore_window(env);
1195: break;
1.1.1.6 root 1196: case TT_TFAULT:
1197: case TT_DFAULT:
1198: {
1.1.1.14 root 1199: info.si_signo = TARGET_SIGSEGV;
1.1.1.6 root 1200: info.si_errno = 0;
1201: /* XXX: check env->error_code */
1202: info.si_code = TARGET_SEGV_MAPERR;
1203: if (trapnr == TT_DFAULT)
1204: info._sifields._sigfault._addr = env->dmmuregs[4];
1205: else
1.1.1.9 root 1206: info._sifields._sigfault._addr = cpu_tsptr(env)->tpc;
1.1.1.7 root 1207: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 1208: }
1209: break;
1210: #ifndef TARGET_ABI32
1211: case 0x16e:
1212: flush_windows(env);
1213: sparc64_get_context(env);
1214: break;
1215: case 0x16f:
1216: flush_windows(env);
1217: sparc64_set_context(env);
1218: break;
1219: #endif
1.1 root 1220: #endif
1.1.1.4 root 1221: case EXCP_INTERRUPT:
1222: /* just indicate that signals should be handled asap */
1223: break;
1.1.1.14 root 1224: case TT_ILL_INSN:
1225: {
1226: info.si_signo = TARGET_SIGILL;
1227: info.si_errno = 0;
1228: info.si_code = TARGET_ILL_ILLOPC;
1229: info._sifields._sigfault._addr = env->pc;
1230: queue_signal(env, info.si_signo, &info);
1231: }
1232: break;
1.1 root 1233: case EXCP_DEBUG:
1234: {
1235: int sig;
1236:
1237: sig = gdb_handlesig (env, TARGET_SIGTRAP);
1238: if (sig)
1239: {
1240: info.si_signo = sig;
1241: info.si_errno = 0;
1242: info.si_code = TARGET_TRAP_BRKPT;
1.1.1.7 root 1243: queue_signal(env, info.si_signo, &info);
1.1 root 1244: }
1245: }
1246: break;
1247: default:
1248: printf ("Unhandled trap: 0x%x\n", trapnr);
1249: cpu_dump_state(env, stderr, fprintf, 0);
1250: exit (1);
1251: }
1252: process_pending_signals (env);
1253: }
1254: }
1255:
1256: #endif
1257:
1258: #ifdef TARGET_PPC
1.1.1.15! root 1259: static inline uint64_t cpu_ppc_get_tb(CPUPPCState *env)
1.1 root 1260: {
1261: /* TO FIX */
1262: return 0;
1263: }
1.1.1.6 root 1264:
1.1.1.15! root 1265: uint64_t cpu_ppc_load_tbl(CPUPPCState *env)
1.1 root 1266: {
1.1.1.11 root 1267: return cpu_ppc_get_tb(env);
1.1 root 1268: }
1.1.1.6 root 1269:
1.1.1.15! root 1270: uint32_t cpu_ppc_load_tbu(CPUPPCState *env)
1.1 root 1271: {
1272: return cpu_ppc_get_tb(env) >> 32;
1273: }
1.1.1.6 root 1274:
1.1.1.15! root 1275: uint64_t cpu_ppc_load_atbl(CPUPPCState *env)
1.1 root 1276: {
1.1.1.11 root 1277: return cpu_ppc_get_tb(env);
1.1 root 1278: }
1279:
1.1.1.15! root 1280: uint32_t cpu_ppc_load_atbu(CPUPPCState *env)
1.1 root 1281: {
1.1.1.6 root 1282: return cpu_ppc_get_tb(env) >> 32;
1.1 root 1283: }
1.1.1.6 root 1284:
1.1.1.15! root 1285: uint32_t cpu_ppc601_load_rtcu(CPUPPCState *env)
1.1.1.6 root 1286: __attribute__ (( alias ("cpu_ppc_load_tbu") ));
1287:
1.1.1.15! root 1288: uint32_t cpu_ppc601_load_rtcl(CPUPPCState *env)
1.1 root 1289: {
1.1.1.6 root 1290: return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
1.1 root 1291: }
1.1.1.6 root 1292:
1293: /* XXX: to be fixed */
1.1.1.11 root 1294: int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, uint32_t *valp)
1.1 root 1295: {
1296: return -1;
1297: }
1.1.1.6 root 1298:
1.1.1.11 root 1299: int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, uint32_t val)
1.1 root 1300: {
1.1.1.6 root 1301: return -1;
1.1 root 1302: }
1.1.1.6 root 1303:
1.1.1.8 root 1304: #define EXCP_DUMP(env, fmt, ...) \
1305: do { \
1306: fprintf(stderr, fmt , ## __VA_ARGS__); \
1307: cpu_dump_state(env, stderr, fprintf, 0); \
1308: qemu_log(fmt, ## __VA_ARGS__); \
1309: if (logfile) \
1310: log_cpu_state(env, 0); \
1.1.1.6 root 1311: } while (0)
1312:
1.1.1.9 root 1313: static int do_store_exclusive(CPUPPCState *env)
1314: {
1315: target_ulong addr;
1316: target_ulong page_addr;
1317: target_ulong val;
1318: int flags;
1319: int segv = 0;
1320:
1321: addr = env->reserve_ea;
1322: page_addr = addr & TARGET_PAGE_MASK;
1323: start_exclusive();
1324: mmap_lock();
1325: flags = page_get_flags(page_addr);
1326: if ((flags & PAGE_READ) == 0) {
1327: segv = 1;
1328: } else {
1329: int reg = env->reserve_info & 0x1f;
1330: int size = (env->reserve_info >> 5) & 0xf;
1331: int stored = 0;
1332:
1333: if (addr == env->reserve_addr) {
1334: switch (size) {
1335: case 1: segv = get_user_u8(val, addr); break;
1336: case 2: segv = get_user_u16(val, addr); break;
1337: case 4: segv = get_user_u32(val, addr); break;
1338: #if defined(TARGET_PPC64)
1339: case 8: segv = get_user_u64(val, addr); break;
1340: #endif
1341: default: abort();
1342: }
1343: if (!segv && val == env->reserve_val) {
1344: val = env->gpr[reg];
1345: switch (size) {
1346: case 1: segv = put_user_u8(val, addr); break;
1347: case 2: segv = put_user_u16(val, addr); break;
1348: case 4: segv = put_user_u32(val, addr); break;
1349: #if defined(TARGET_PPC64)
1350: case 8: segv = put_user_u64(val, addr); break;
1351: #endif
1352: default: abort();
1353: }
1354: if (!segv) {
1355: stored = 1;
1356: }
1357: }
1358: }
1359: env->crf[0] = (stored << 1) | xer_so;
1360: env->reserve_addr = (target_ulong)-1;
1361: }
1362: if (!segv) {
1363: env->nip += 4;
1364: }
1365: mmap_unlock();
1366: end_exclusive();
1367: return segv;
1368: }
1369:
1.1 root 1370: void cpu_loop(CPUPPCState *env)
1371: {
1372: target_siginfo_t info;
1373: int trapnr;
1.1.1.14 root 1374: target_ulong ret;
1.1.1.6 root 1375:
1.1 root 1376: for(;;) {
1.1.1.9 root 1377: cpu_exec_start(env);
1.1 root 1378: trapnr = cpu_ppc_exec(env);
1.1.1.9 root 1379: cpu_exec_end(env);
1.1 root 1380: switch(trapnr) {
1.1.1.6 root 1381: case POWERPC_EXCP_NONE:
1382: /* Just go on */
1.1 root 1383: break;
1.1.1.6 root 1384: case POWERPC_EXCP_CRITICAL: /* Critical input */
1385: cpu_abort(env, "Critical interrupt while in user mode. "
1386: "Aborting\n");
1387: break;
1388: case POWERPC_EXCP_MCHECK: /* Machine check exception */
1389: cpu_abort(env, "Machine check exception while in user mode. "
1390: "Aborting\n");
1391: break;
1392: case POWERPC_EXCP_DSI: /* Data storage exception */
1.1.1.9 root 1393: EXCP_DUMP(env, "Invalid data memory access: 0x" TARGET_FMT_lx "\n",
1.1.1.6 root 1394: env->spr[SPR_DAR]);
1395: /* XXX: check this. Seems bugged */
1.1 root 1396: switch (env->error_code & 0xFF000000) {
1397: case 0x40000000:
1398: info.si_signo = TARGET_SIGSEGV;
1399: info.si_errno = 0;
1400: info.si_code = TARGET_SEGV_MAPERR;
1401: break;
1402: case 0x04000000:
1403: info.si_signo = TARGET_SIGILL;
1404: info.si_errno = 0;
1405: info.si_code = TARGET_ILL_ILLADR;
1406: break;
1407: case 0x08000000:
1408: info.si_signo = TARGET_SIGSEGV;
1409: info.si_errno = 0;
1410: info.si_code = TARGET_SEGV_ACCERR;
1411: break;
1412: default:
1413: /* Let's send a regular segfault... */
1.1.1.6 root 1414: EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1415: env->error_code);
1.1 root 1416: info.si_signo = TARGET_SIGSEGV;
1417: info.si_errno = 0;
1418: info.si_code = TARGET_SEGV_MAPERR;
1419: break;
1420: }
1421: info._sifields._sigfault._addr = env->nip;
1.1.1.7 root 1422: queue_signal(env, info.si_signo, &info);
1.1 root 1423: break;
1.1.1.6 root 1424: case POWERPC_EXCP_ISI: /* Instruction storage exception */
1.1.1.9 root 1425: EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" TARGET_FMT_lx
1426: "\n", env->spr[SPR_SRR0]);
1.1.1.6 root 1427: /* XXX: check this */
1.1 root 1428: switch (env->error_code & 0xFF000000) {
1429: case 0x40000000:
1430: info.si_signo = TARGET_SIGSEGV;
1431: info.si_errno = 0;
1432: info.si_code = TARGET_SEGV_MAPERR;
1433: break;
1434: case 0x10000000:
1435: case 0x08000000:
1436: info.si_signo = TARGET_SIGSEGV;
1437: info.si_errno = 0;
1438: info.si_code = TARGET_SEGV_ACCERR;
1439: break;
1440: default:
1441: /* Let's send a regular segfault... */
1.1.1.6 root 1442: EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1443: env->error_code);
1.1 root 1444: info.si_signo = TARGET_SIGSEGV;
1445: info.si_errno = 0;
1446: info.si_code = TARGET_SEGV_MAPERR;
1447: break;
1448: }
1449: info._sifields._sigfault._addr = env->nip - 4;
1.1.1.7 root 1450: queue_signal(env, info.si_signo, &info);
1.1 root 1451: break;
1.1.1.6 root 1452: case POWERPC_EXCP_EXTERNAL: /* External input */
1453: cpu_abort(env, "External interrupt while in user mode. "
1454: "Aborting\n");
1455: break;
1456: case POWERPC_EXCP_ALIGN: /* Alignment exception */
1457: EXCP_DUMP(env, "Unaligned memory access\n");
1458: /* XXX: check this */
1.1 root 1459: info.si_signo = TARGET_SIGBUS;
1460: info.si_errno = 0;
1461: info.si_code = TARGET_BUS_ADRALN;
1462: info._sifields._sigfault._addr = env->nip - 4;
1.1.1.7 root 1463: queue_signal(env, info.si_signo, &info);
1.1 root 1464: break;
1.1.1.6 root 1465: case POWERPC_EXCP_PROGRAM: /* Program exception */
1466: /* XXX: check this */
1.1 root 1467: switch (env->error_code & ~0xF) {
1.1.1.6 root 1468: case POWERPC_EXCP_FP:
1469: EXCP_DUMP(env, "Floating point program exception\n");
1.1 root 1470: info.si_signo = TARGET_SIGFPE;
1471: info.si_errno = 0;
1472: switch (env->error_code & 0xF) {
1.1.1.6 root 1473: case POWERPC_EXCP_FP_OX:
1.1 root 1474: info.si_code = TARGET_FPE_FLTOVF;
1475: break;
1.1.1.6 root 1476: case POWERPC_EXCP_FP_UX:
1.1 root 1477: info.si_code = TARGET_FPE_FLTUND;
1478: break;
1.1.1.6 root 1479: case POWERPC_EXCP_FP_ZX:
1480: case POWERPC_EXCP_FP_VXZDZ:
1.1 root 1481: info.si_code = TARGET_FPE_FLTDIV;
1482: break;
1.1.1.6 root 1483: case POWERPC_EXCP_FP_XX:
1.1 root 1484: info.si_code = TARGET_FPE_FLTRES;
1485: break;
1.1.1.6 root 1486: case POWERPC_EXCP_FP_VXSOFT:
1.1 root 1487: info.si_code = TARGET_FPE_FLTINV;
1488: break;
1.1.1.6 root 1489: case POWERPC_EXCP_FP_VXSNAN:
1490: case POWERPC_EXCP_FP_VXISI:
1491: case POWERPC_EXCP_FP_VXIDI:
1492: case POWERPC_EXCP_FP_VXIMZ:
1493: case POWERPC_EXCP_FP_VXVC:
1494: case POWERPC_EXCP_FP_VXSQRT:
1495: case POWERPC_EXCP_FP_VXCVI:
1.1 root 1496: info.si_code = TARGET_FPE_FLTSUB;
1497: break;
1498: default:
1.1.1.6 root 1499: EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
1500: env->error_code);
1501: break;
1.1 root 1502: }
1.1.1.6 root 1503: break;
1504: case POWERPC_EXCP_INVAL:
1505: EXCP_DUMP(env, "Invalid instruction\n");
1.1 root 1506: info.si_signo = TARGET_SIGILL;
1507: info.si_errno = 0;
1508: switch (env->error_code & 0xF) {
1.1.1.6 root 1509: case POWERPC_EXCP_INVAL_INVAL:
1.1 root 1510: info.si_code = TARGET_ILL_ILLOPC;
1511: break;
1.1.1.6 root 1512: case POWERPC_EXCP_INVAL_LSWX:
1513: info.si_code = TARGET_ILL_ILLOPN;
1.1 root 1514: break;
1.1.1.6 root 1515: case POWERPC_EXCP_INVAL_SPR:
1.1 root 1516: info.si_code = TARGET_ILL_PRVREG;
1517: break;
1.1.1.6 root 1518: case POWERPC_EXCP_INVAL_FP:
1.1 root 1519: info.si_code = TARGET_ILL_COPROC;
1520: break;
1521: default:
1.1.1.6 root 1522: EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
1523: env->error_code & 0xF);
1.1 root 1524: info.si_code = TARGET_ILL_ILLADR;
1525: break;
1526: }
1527: break;
1.1.1.6 root 1528: case POWERPC_EXCP_PRIV:
1529: EXCP_DUMP(env, "Privilege violation\n");
1.1 root 1530: info.si_signo = TARGET_SIGILL;
1531: info.si_errno = 0;
1532: switch (env->error_code & 0xF) {
1.1.1.6 root 1533: case POWERPC_EXCP_PRIV_OPC:
1.1 root 1534: info.si_code = TARGET_ILL_PRVOPC;
1535: break;
1.1.1.6 root 1536: case POWERPC_EXCP_PRIV_REG:
1.1 root 1537: info.si_code = TARGET_ILL_PRVREG;
1.1.1.6 root 1538: break;
1.1 root 1539: default:
1.1.1.6 root 1540: EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
1541: env->error_code & 0xF);
1.1 root 1542: info.si_code = TARGET_ILL_PRVOPC;
1543: break;
1544: }
1545: break;
1.1.1.6 root 1546: case POWERPC_EXCP_TRAP:
1547: cpu_abort(env, "Tried to call a TRAP\n");
1548: break;
1.1 root 1549: default:
1550: /* Should not happen ! */
1.1.1.6 root 1551: cpu_abort(env, "Unknown program exception (%02x)\n",
1552: env->error_code);
1553: break;
1.1 root 1554: }
1555: info._sifields._sigfault._addr = env->nip - 4;
1.1.1.7 root 1556: queue_signal(env, info.si_signo, &info);
1.1 root 1557: break;
1.1.1.6 root 1558: case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
1559: EXCP_DUMP(env, "No floating point allowed\n");
1.1 root 1560: info.si_signo = TARGET_SIGILL;
1561: info.si_errno = 0;
1562: info.si_code = TARGET_ILL_COPROC;
1563: info._sifields._sigfault._addr = env->nip - 4;
1.1.1.7 root 1564: queue_signal(env, info.si_signo, &info);
1.1 root 1565: break;
1.1.1.6 root 1566: case POWERPC_EXCP_SYSCALL: /* System call exception */
1567: cpu_abort(env, "Syscall exception while in user mode. "
1568: "Aborting\n");
1.1 root 1569: break;
1.1.1.6 root 1570: case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
1571: EXCP_DUMP(env, "No APU instruction allowed\n");
1572: info.si_signo = TARGET_SIGILL;
1573: info.si_errno = 0;
1574: info.si_code = TARGET_ILL_COPROC;
1575: info._sifields._sigfault._addr = env->nip - 4;
1.1.1.7 root 1576: queue_signal(env, info.si_signo, &info);
1.1 root 1577: break;
1.1.1.6 root 1578: case POWERPC_EXCP_DECR: /* Decrementer exception */
1579: cpu_abort(env, "Decrementer interrupt while in user mode. "
1580: "Aborting\n");
1581: break;
1582: case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
1583: cpu_abort(env, "Fix interval timer interrupt while in user mode. "
1584: "Aborting\n");
1585: break;
1586: case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
1587: cpu_abort(env, "Watchdog timer interrupt while in user mode. "
1588: "Aborting\n");
1589: break;
1590: case POWERPC_EXCP_DTLB: /* Data TLB error */
1591: cpu_abort(env, "Data TLB exception while in user mode. "
1592: "Aborting\n");
1593: break;
1594: case POWERPC_EXCP_ITLB: /* Instruction TLB error */
1595: cpu_abort(env, "Instruction TLB exception while in user mode. "
1596: "Aborting\n");
1.1 root 1597: break;
1.1.1.6 root 1598: case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */
1599: EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
1600: info.si_signo = TARGET_SIGILL;
1601: info.si_errno = 0;
1602: info.si_code = TARGET_ILL_COPROC;
1603: info._sifields._sigfault._addr = env->nip - 4;
1.1.1.7 root 1604: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 1605: break;
1606: case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */
1607: cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
1608: break;
1609: case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */
1610: cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
1611: break;
1612: case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */
1613: cpu_abort(env, "Performance monitor exception not handled\n");
1614: break;
1615: case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
1616: cpu_abort(env, "Doorbell interrupt while in user mode. "
1617: "Aborting\n");
1618: break;
1619: case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
1620: cpu_abort(env, "Doorbell critical interrupt while in user mode. "
1621: "Aborting\n");
1622: break;
1623: case POWERPC_EXCP_RESET: /* System reset exception */
1624: cpu_abort(env, "Reset interrupt while in user mode. "
1625: "Aborting\n");
1626: break;
1627: case POWERPC_EXCP_DSEG: /* Data segment exception */
1628: cpu_abort(env, "Data segment exception while in user mode. "
1629: "Aborting\n");
1630: break;
1631: case POWERPC_EXCP_ISEG: /* Instruction segment exception */
1632: cpu_abort(env, "Instruction segment exception "
1633: "while in user mode. Aborting\n");
1634: break;
1635: /* PowerPC 64 with hypervisor mode support */
1636: case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
1637: cpu_abort(env, "Hypervisor decrementer interrupt "
1638: "while in user mode. Aborting\n");
1639: break;
1640: case POWERPC_EXCP_TRACE: /* Trace exception */
1641: /* Nothing to do:
1642: * we use this exception to emulate step-by-step execution mode.
1643: */
1644: break;
1645: /* PowerPC 64 with hypervisor mode support */
1646: case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
1647: cpu_abort(env, "Hypervisor data storage exception "
1648: "while in user mode. Aborting\n");
1649: break;
1650: case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */
1651: cpu_abort(env, "Hypervisor instruction storage exception "
1652: "while in user mode. Aborting\n");
1653: break;
1654: case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
1655: cpu_abort(env, "Hypervisor data segment exception "
1656: "while in user mode. Aborting\n");
1657: break;
1658: case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */
1659: cpu_abort(env, "Hypervisor instruction segment exception "
1660: "while in user mode. Aborting\n");
1661: break;
1662: case POWERPC_EXCP_VPU: /* Vector unavailable exception */
1663: EXCP_DUMP(env, "No Altivec instructions allowed\n");
1664: info.si_signo = TARGET_SIGILL;
1665: info.si_errno = 0;
1666: info.si_code = TARGET_ILL_COPROC;
1667: info._sifields._sigfault._addr = env->nip - 4;
1.1.1.7 root 1668: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 1669: break;
1670: case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */
1.1.1.15! root 1671: cpu_abort(env, "Programmable interval timer interrupt "
1.1.1.6 root 1672: "while in user mode. Aborting\n");
1673: break;
1674: case POWERPC_EXCP_IO: /* IO error exception */
1675: cpu_abort(env, "IO error exception while in user mode. "
1676: "Aborting\n");
1677: break;
1678: case POWERPC_EXCP_RUNM: /* Run mode exception */
1679: cpu_abort(env, "Run mode exception while in user mode. "
1680: "Aborting\n");
1681: break;
1682: case POWERPC_EXCP_EMUL: /* Emulation trap exception */
1683: cpu_abort(env, "Emulation trap exception not handled\n");
1684: break;
1685: case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
1686: cpu_abort(env, "Instruction fetch TLB exception "
1687: "while in user-mode. Aborting");
1688: break;
1689: case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
1690: cpu_abort(env, "Data load TLB exception while in user-mode. "
1691: "Aborting");
1692: break;
1693: case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
1694: cpu_abort(env, "Data store TLB exception while in user-mode. "
1695: "Aborting");
1696: break;
1697: case POWERPC_EXCP_FPA: /* Floating-point assist exception */
1698: cpu_abort(env, "Floating-point assist exception not handled\n");
1699: break;
1700: case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
1701: cpu_abort(env, "Instruction address breakpoint exception "
1702: "not handled\n");
1703: break;
1704: case POWERPC_EXCP_SMI: /* System management interrupt */
1705: cpu_abort(env, "System management interrupt while in user mode. "
1706: "Aborting\n");
1707: break;
1708: case POWERPC_EXCP_THERM: /* Thermal interrupt */
1709: cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
1710: "Aborting\n");
1711: break;
1712: case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */
1713: cpu_abort(env, "Performance monitor exception not handled\n");
1714: break;
1715: case POWERPC_EXCP_VPUA: /* Vector assist exception */
1716: cpu_abort(env, "Vector assist exception not handled\n");
1717: break;
1718: case POWERPC_EXCP_SOFTP: /* Soft patch exception */
1719: cpu_abort(env, "Soft patch exception not handled\n");
1720: break;
1721: case POWERPC_EXCP_MAINT: /* Maintenance exception */
1722: cpu_abort(env, "Maintenance exception while in user mode. "
1723: "Aborting\n");
1724: break;
1725: case POWERPC_EXCP_STOP: /* stop translation */
1726: /* We did invalidate the instruction cache. Go on */
1727: break;
1728: case POWERPC_EXCP_BRANCH: /* branch instruction: */
1729: /* We just stopped because of a branch. Go on */
1730: break;
1731: case POWERPC_EXCP_SYSCALL_USER:
1732: /* system call in user-mode emulation */
1733: /* WARNING:
1734: * PPC ABI uses overflow flag in cr0 to signal an error
1735: * in syscalls.
1736: */
1737: env->crf[0] &= ~0x1;
1738: ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
1739: env->gpr[5], env->gpr[6], env->gpr[7],
1.1.1.13 root 1740: env->gpr[8], 0, 0);
1.1.1.14 root 1741: if (ret == (target_ulong)(-TARGET_QEMU_ESIGRETURN)) {
1.1.1.8 root 1742: /* Returning from a successful sigreturn syscall.
1743: Avoid corrupting register state. */
1744: break;
1745: }
1.1.1.14 root 1746: if (ret > (target_ulong)(-515)) {
1.1.1.6 root 1747: env->crf[0] |= 0x1;
1748: ret = -ret;
1.1 root 1749: }
1.1.1.6 root 1750: env->gpr[3] = ret;
1751: break;
1.1.1.9 root 1752: case POWERPC_EXCP_STCX:
1753: if (do_store_exclusive(env)) {
1754: info.si_signo = TARGET_SIGSEGV;
1755: info.si_errno = 0;
1756: info.si_code = TARGET_SEGV_MAPERR;
1757: info._sifields._sigfault._addr = env->nip;
1758: queue_signal(env, info.si_signo, &info);
1759: }
1760: break;
1.1.1.7 root 1761: case EXCP_DEBUG:
1762: {
1763: int sig;
1764:
1765: sig = gdb_handlesig(env, TARGET_SIGTRAP);
1766: if (sig) {
1767: info.si_signo = sig;
1768: info.si_errno = 0;
1769: info.si_code = TARGET_TRAP_BRKPT;
1770: queue_signal(env, info.si_signo, &info);
1771: }
1772: }
1773: break;
1.1.1.6 root 1774: case EXCP_INTERRUPT:
1775: /* just indicate that signals should be handled asap */
1776: break;
1777: default:
1778: cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
1779: break;
1.1 root 1780: }
1781: process_pending_signals(env);
1782: }
1783: }
1784: #endif
1785:
1.1.1.2 root 1786: #ifdef TARGET_MIPS
1787:
1788: #define MIPS_SYS(name, args) args,
1789:
1790: static const uint8_t mips_syscall_args[] = {
1.1.1.14 root 1791: MIPS_SYS(sys_syscall , 8) /* 4000 */
1.1.1.2 root 1792: MIPS_SYS(sys_exit , 1)
1793: MIPS_SYS(sys_fork , 0)
1794: MIPS_SYS(sys_read , 3)
1795: MIPS_SYS(sys_write , 3)
1796: MIPS_SYS(sys_open , 3) /* 4005 */
1797: MIPS_SYS(sys_close , 1)
1798: MIPS_SYS(sys_waitpid , 3)
1799: MIPS_SYS(sys_creat , 2)
1800: MIPS_SYS(sys_link , 2)
1801: MIPS_SYS(sys_unlink , 1) /* 4010 */
1802: MIPS_SYS(sys_execve , 0)
1803: MIPS_SYS(sys_chdir , 1)
1804: MIPS_SYS(sys_time , 1)
1805: MIPS_SYS(sys_mknod , 3)
1806: MIPS_SYS(sys_chmod , 2) /* 4015 */
1807: MIPS_SYS(sys_lchown , 3)
1808: MIPS_SYS(sys_ni_syscall , 0)
1809: MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1810: MIPS_SYS(sys_lseek , 3)
1811: MIPS_SYS(sys_getpid , 0) /* 4020 */
1812: MIPS_SYS(sys_mount , 5)
1813: MIPS_SYS(sys_oldumount , 1)
1814: MIPS_SYS(sys_setuid , 1)
1815: MIPS_SYS(sys_getuid , 0)
1816: MIPS_SYS(sys_stime , 1) /* 4025 */
1817: MIPS_SYS(sys_ptrace , 4)
1818: MIPS_SYS(sys_alarm , 1)
1819: MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1820: MIPS_SYS(sys_pause , 0)
1821: MIPS_SYS(sys_utime , 2) /* 4030 */
1822: MIPS_SYS(sys_ni_syscall , 0)
1823: MIPS_SYS(sys_ni_syscall , 0)
1824: MIPS_SYS(sys_access , 2)
1825: MIPS_SYS(sys_nice , 1)
1826: MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1827: MIPS_SYS(sys_sync , 0)
1828: MIPS_SYS(sys_kill , 2)
1829: MIPS_SYS(sys_rename , 2)
1830: MIPS_SYS(sys_mkdir , 2)
1831: MIPS_SYS(sys_rmdir , 1) /* 4040 */
1832: MIPS_SYS(sys_dup , 1)
1833: MIPS_SYS(sys_pipe , 0)
1834: MIPS_SYS(sys_times , 1)
1835: MIPS_SYS(sys_ni_syscall , 0)
1836: MIPS_SYS(sys_brk , 1) /* 4045 */
1837: MIPS_SYS(sys_setgid , 1)
1838: MIPS_SYS(sys_getgid , 0)
1839: MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1840: MIPS_SYS(sys_geteuid , 0)
1841: MIPS_SYS(sys_getegid , 0) /* 4050 */
1842: MIPS_SYS(sys_acct , 0)
1843: MIPS_SYS(sys_umount , 2)
1844: MIPS_SYS(sys_ni_syscall , 0)
1845: MIPS_SYS(sys_ioctl , 3)
1846: MIPS_SYS(sys_fcntl , 3) /* 4055 */
1847: MIPS_SYS(sys_ni_syscall , 2)
1848: MIPS_SYS(sys_setpgid , 2)
1849: MIPS_SYS(sys_ni_syscall , 0)
1850: MIPS_SYS(sys_olduname , 1)
1851: MIPS_SYS(sys_umask , 1) /* 4060 */
1852: MIPS_SYS(sys_chroot , 1)
1853: MIPS_SYS(sys_ustat , 2)
1854: MIPS_SYS(sys_dup2 , 2)
1855: MIPS_SYS(sys_getppid , 0)
1856: MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1857: MIPS_SYS(sys_setsid , 0)
1858: MIPS_SYS(sys_sigaction , 3)
1859: MIPS_SYS(sys_sgetmask , 0)
1860: MIPS_SYS(sys_ssetmask , 1)
1861: MIPS_SYS(sys_setreuid , 2) /* 4070 */
1862: MIPS_SYS(sys_setregid , 2)
1863: MIPS_SYS(sys_sigsuspend , 0)
1864: MIPS_SYS(sys_sigpending , 1)
1865: MIPS_SYS(sys_sethostname , 2)
1866: MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1867: MIPS_SYS(sys_getrlimit , 2)
1868: MIPS_SYS(sys_getrusage , 2)
1869: MIPS_SYS(sys_gettimeofday, 2)
1870: MIPS_SYS(sys_settimeofday, 2)
1871: MIPS_SYS(sys_getgroups , 2) /* 4080 */
1872: MIPS_SYS(sys_setgroups , 2)
1873: MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1874: MIPS_SYS(sys_symlink , 2)
1875: MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1876: MIPS_SYS(sys_readlink , 3) /* 4085 */
1877: MIPS_SYS(sys_uselib , 1)
1878: MIPS_SYS(sys_swapon , 2)
1879: MIPS_SYS(sys_reboot , 3)
1880: MIPS_SYS(old_readdir , 3)
1881: MIPS_SYS(old_mmap , 6) /* 4090 */
1882: MIPS_SYS(sys_munmap , 2)
1883: MIPS_SYS(sys_truncate , 2)
1884: MIPS_SYS(sys_ftruncate , 2)
1885: MIPS_SYS(sys_fchmod , 2)
1886: MIPS_SYS(sys_fchown , 3) /* 4095 */
1887: MIPS_SYS(sys_getpriority , 2)
1888: MIPS_SYS(sys_setpriority , 3)
1889: MIPS_SYS(sys_ni_syscall , 0)
1890: MIPS_SYS(sys_statfs , 2)
1891: MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1892: MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1893: MIPS_SYS(sys_socketcall , 2)
1894: MIPS_SYS(sys_syslog , 3)
1895: MIPS_SYS(sys_setitimer , 3)
1896: MIPS_SYS(sys_getitimer , 2) /* 4105 */
1897: MIPS_SYS(sys_newstat , 2)
1898: MIPS_SYS(sys_newlstat , 2)
1899: MIPS_SYS(sys_newfstat , 2)
1900: MIPS_SYS(sys_uname , 1)
1901: MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1902: MIPS_SYS(sys_vhangup , 0)
1903: MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1904: MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1905: MIPS_SYS(sys_wait4 , 4)
1906: MIPS_SYS(sys_swapoff , 1) /* 4115 */
1907: MIPS_SYS(sys_sysinfo , 1)
1908: MIPS_SYS(sys_ipc , 6)
1909: MIPS_SYS(sys_fsync , 1)
1910: MIPS_SYS(sys_sigreturn , 0)
1.1.1.8 root 1911: MIPS_SYS(sys_clone , 6) /* 4120 */
1.1.1.2 root 1912: MIPS_SYS(sys_setdomainname, 2)
1913: MIPS_SYS(sys_newuname , 1)
1914: MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1915: MIPS_SYS(sys_adjtimex , 1)
1916: MIPS_SYS(sys_mprotect , 3) /* 4125 */
1917: MIPS_SYS(sys_sigprocmask , 3)
1918: MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1919: MIPS_SYS(sys_init_module , 5)
1920: MIPS_SYS(sys_delete_module, 1)
1921: MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1922: MIPS_SYS(sys_quotactl , 0)
1923: MIPS_SYS(sys_getpgid , 1)
1924: MIPS_SYS(sys_fchdir , 1)
1925: MIPS_SYS(sys_bdflush , 2)
1926: MIPS_SYS(sys_sysfs , 3) /* 4135 */
1927: MIPS_SYS(sys_personality , 1)
1928: MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1929: MIPS_SYS(sys_setfsuid , 1)
1930: MIPS_SYS(sys_setfsgid , 1)
1931: MIPS_SYS(sys_llseek , 5) /* 4140 */
1932: MIPS_SYS(sys_getdents , 3)
1933: MIPS_SYS(sys_select , 5)
1934: MIPS_SYS(sys_flock , 2)
1935: MIPS_SYS(sys_msync , 3)
1936: MIPS_SYS(sys_readv , 3) /* 4145 */
1937: MIPS_SYS(sys_writev , 3)
1938: MIPS_SYS(sys_cacheflush , 3)
1939: MIPS_SYS(sys_cachectl , 3)
1940: MIPS_SYS(sys_sysmips , 4)
1941: MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1942: MIPS_SYS(sys_getsid , 1)
1943: MIPS_SYS(sys_fdatasync , 0)
1944: MIPS_SYS(sys_sysctl , 1)
1945: MIPS_SYS(sys_mlock , 2)
1946: MIPS_SYS(sys_munlock , 2) /* 4155 */
1947: MIPS_SYS(sys_mlockall , 1)
1948: MIPS_SYS(sys_munlockall , 0)
1949: MIPS_SYS(sys_sched_setparam, 2)
1950: MIPS_SYS(sys_sched_getparam, 2)
1951: MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1952: MIPS_SYS(sys_sched_getscheduler, 1)
1953: MIPS_SYS(sys_sched_yield , 0)
1954: MIPS_SYS(sys_sched_get_priority_max, 1)
1955: MIPS_SYS(sys_sched_get_priority_min, 1)
1956: MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1957: MIPS_SYS(sys_nanosleep, 2)
1958: MIPS_SYS(sys_mremap , 4)
1959: MIPS_SYS(sys_accept , 3)
1960: MIPS_SYS(sys_bind , 3)
1961: MIPS_SYS(sys_connect , 3) /* 4170 */
1962: MIPS_SYS(sys_getpeername , 3)
1963: MIPS_SYS(sys_getsockname , 3)
1964: MIPS_SYS(sys_getsockopt , 5)
1965: MIPS_SYS(sys_listen , 2)
1966: MIPS_SYS(sys_recv , 4) /* 4175 */
1967: MIPS_SYS(sys_recvfrom , 6)
1968: MIPS_SYS(sys_recvmsg , 3)
1969: MIPS_SYS(sys_send , 4)
1970: MIPS_SYS(sys_sendmsg , 3)
1971: MIPS_SYS(sys_sendto , 6) /* 4180 */
1972: MIPS_SYS(sys_setsockopt , 5)
1973: MIPS_SYS(sys_shutdown , 2)
1974: MIPS_SYS(sys_socket , 3)
1975: MIPS_SYS(sys_socketpair , 4)
1976: MIPS_SYS(sys_setresuid , 3) /* 4185 */
1977: MIPS_SYS(sys_getresuid , 3)
1978: MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1979: MIPS_SYS(sys_poll , 3)
1980: MIPS_SYS(sys_nfsservctl , 3)
1981: MIPS_SYS(sys_setresgid , 3) /* 4190 */
1982: MIPS_SYS(sys_getresgid , 3)
1983: MIPS_SYS(sys_prctl , 5)
1984: MIPS_SYS(sys_rt_sigreturn, 0)
1985: MIPS_SYS(sys_rt_sigaction, 4)
1986: MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1987: MIPS_SYS(sys_rt_sigpending, 2)
1988: MIPS_SYS(sys_rt_sigtimedwait, 4)
1989: MIPS_SYS(sys_rt_sigqueueinfo, 3)
1990: MIPS_SYS(sys_rt_sigsuspend, 0)
1991: MIPS_SYS(sys_pread64 , 6) /* 4200 */
1992: MIPS_SYS(sys_pwrite64 , 6)
1993: MIPS_SYS(sys_chown , 3)
1994: MIPS_SYS(sys_getcwd , 2)
1995: MIPS_SYS(sys_capget , 2)
1996: MIPS_SYS(sys_capset , 2) /* 4205 */
1.1.1.13 root 1997: MIPS_SYS(sys_sigaltstack , 2)
1.1.1.2 root 1998: MIPS_SYS(sys_sendfile , 4)
1999: MIPS_SYS(sys_ni_syscall , 0)
2000: MIPS_SYS(sys_ni_syscall , 0)
2001: MIPS_SYS(sys_mmap2 , 6) /* 4210 */
2002: MIPS_SYS(sys_truncate64 , 4)
2003: MIPS_SYS(sys_ftruncate64 , 4)
2004: MIPS_SYS(sys_stat64 , 2)
2005: MIPS_SYS(sys_lstat64 , 2)
2006: MIPS_SYS(sys_fstat64 , 2) /* 4215 */
2007: MIPS_SYS(sys_pivot_root , 2)
2008: MIPS_SYS(sys_mincore , 3)
2009: MIPS_SYS(sys_madvise , 3)
2010: MIPS_SYS(sys_getdents64 , 3)
2011: MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
2012: MIPS_SYS(sys_ni_syscall , 0)
2013: MIPS_SYS(sys_gettid , 0)
2014: MIPS_SYS(sys_readahead , 5)
2015: MIPS_SYS(sys_setxattr , 5)
2016: MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
2017: MIPS_SYS(sys_fsetxattr , 5)
2018: MIPS_SYS(sys_getxattr , 4)
2019: MIPS_SYS(sys_lgetxattr , 4)
2020: MIPS_SYS(sys_fgetxattr , 4)
2021: MIPS_SYS(sys_listxattr , 3) /* 4230 */
2022: MIPS_SYS(sys_llistxattr , 3)
2023: MIPS_SYS(sys_flistxattr , 3)
2024: MIPS_SYS(sys_removexattr , 2)
2025: MIPS_SYS(sys_lremovexattr, 2)
2026: MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
2027: MIPS_SYS(sys_tkill , 2)
2028: MIPS_SYS(sys_sendfile64 , 5)
2029: MIPS_SYS(sys_futex , 2)
2030: MIPS_SYS(sys_sched_setaffinity, 3)
2031: MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
2032: MIPS_SYS(sys_io_setup , 2)
2033: MIPS_SYS(sys_io_destroy , 1)
2034: MIPS_SYS(sys_io_getevents, 5)
2035: MIPS_SYS(sys_io_submit , 3)
2036: MIPS_SYS(sys_io_cancel , 3) /* 4245 */
2037: MIPS_SYS(sys_exit_group , 1)
2038: MIPS_SYS(sys_lookup_dcookie, 3)
2039: MIPS_SYS(sys_epoll_create, 1)
2040: MIPS_SYS(sys_epoll_ctl , 4)
2041: MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
2042: MIPS_SYS(sys_remap_file_pages, 5)
2043: MIPS_SYS(sys_set_tid_address, 1)
2044: MIPS_SYS(sys_restart_syscall, 0)
2045: MIPS_SYS(sys_fadvise64_64, 7)
2046: MIPS_SYS(sys_statfs64 , 3) /* 4255 */
2047: MIPS_SYS(sys_fstatfs64 , 2)
2048: MIPS_SYS(sys_timer_create, 3)
2049: MIPS_SYS(sys_timer_settime, 4)
2050: MIPS_SYS(sys_timer_gettime, 2)
2051: MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
2052: MIPS_SYS(sys_timer_delete, 1)
2053: MIPS_SYS(sys_clock_settime, 2)
2054: MIPS_SYS(sys_clock_gettime, 2)
2055: MIPS_SYS(sys_clock_getres, 2)
2056: MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
2057: MIPS_SYS(sys_tgkill , 3)
2058: MIPS_SYS(sys_utimes , 2)
2059: MIPS_SYS(sys_mbind , 4)
2060: MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
2061: MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
2062: MIPS_SYS(sys_mq_open , 4)
2063: MIPS_SYS(sys_mq_unlink , 1)
2064: MIPS_SYS(sys_mq_timedsend, 5)
2065: MIPS_SYS(sys_mq_timedreceive, 5)
2066: MIPS_SYS(sys_mq_notify , 2) /* 4275 */
2067: MIPS_SYS(sys_mq_getsetattr, 3)
2068: MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
2069: MIPS_SYS(sys_waitid , 4)
2070: MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
2071: MIPS_SYS(sys_add_key , 5)
1.1.1.6 root 2072: MIPS_SYS(sys_request_key, 4)
1.1.1.2 root 2073: MIPS_SYS(sys_keyctl , 5)
1.1.1.6 root 2074: MIPS_SYS(sys_set_thread_area, 1)
2075: MIPS_SYS(sys_inotify_init, 0)
2076: MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
2077: MIPS_SYS(sys_inotify_rm_watch, 2)
2078: MIPS_SYS(sys_migrate_pages, 4)
2079: MIPS_SYS(sys_openat, 4)
2080: MIPS_SYS(sys_mkdirat, 3)
2081: MIPS_SYS(sys_mknodat, 4) /* 4290 */
2082: MIPS_SYS(sys_fchownat, 5)
2083: MIPS_SYS(sys_futimesat, 3)
2084: MIPS_SYS(sys_fstatat64, 4)
2085: MIPS_SYS(sys_unlinkat, 3)
2086: MIPS_SYS(sys_renameat, 4) /* 4295 */
2087: MIPS_SYS(sys_linkat, 5)
2088: MIPS_SYS(sys_symlinkat, 3)
2089: MIPS_SYS(sys_readlinkat, 4)
2090: MIPS_SYS(sys_fchmodat, 3)
2091: MIPS_SYS(sys_faccessat, 3) /* 4300 */
2092: MIPS_SYS(sys_pselect6, 6)
2093: MIPS_SYS(sys_ppoll, 5)
2094: MIPS_SYS(sys_unshare, 1)
2095: MIPS_SYS(sys_splice, 4)
2096: MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
2097: MIPS_SYS(sys_tee, 4)
2098: MIPS_SYS(sys_vmsplice, 4)
2099: MIPS_SYS(sys_move_pages, 6)
2100: MIPS_SYS(sys_set_robust_list, 2)
2101: MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
2102: MIPS_SYS(sys_kexec_load, 4)
2103: MIPS_SYS(sys_getcpu, 3)
2104: MIPS_SYS(sys_epoll_pwait, 6)
2105: MIPS_SYS(sys_ioprio_set, 3)
2106: MIPS_SYS(sys_ioprio_get, 2)
1.1.1.13 root 2107: MIPS_SYS(sys_utimensat, 4)
2108: MIPS_SYS(sys_signalfd, 3)
2109: MIPS_SYS(sys_ni_syscall, 0) /* was timerfd */
2110: MIPS_SYS(sys_eventfd, 1)
2111: MIPS_SYS(sys_fallocate, 6) /* 4320 */
2112: MIPS_SYS(sys_timerfd_create, 2)
2113: MIPS_SYS(sys_timerfd_gettime, 2)
2114: MIPS_SYS(sys_timerfd_settime, 4)
2115: MIPS_SYS(sys_signalfd4, 4)
2116: MIPS_SYS(sys_eventfd2, 2) /* 4325 */
2117: MIPS_SYS(sys_epoll_create1, 1)
2118: MIPS_SYS(sys_dup3, 3)
2119: MIPS_SYS(sys_pipe2, 2)
2120: MIPS_SYS(sys_inotify_init1, 1)
2121: MIPS_SYS(sys_preadv, 6) /* 4330 */
2122: MIPS_SYS(sys_pwritev, 6)
2123: MIPS_SYS(sys_rt_tgsigqueueinfo, 4)
2124: MIPS_SYS(sys_perf_event_open, 5)
2125: MIPS_SYS(sys_accept4, 4)
2126: MIPS_SYS(sys_recvmmsg, 5) /* 4335 */
2127: MIPS_SYS(sys_fanotify_init, 2)
2128: MIPS_SYS(sys_fanotify_mark, 6)
2129: MIPS_SYS(sys_prlimit64, 4)
2130: MIPS_SYS(sys_name_to_handle_at, 5)
2131: MIPS_SYS(sys_open_by_handle_at, 3) /* 4340 */
2132: MIPS_SYS(sys_clock_adjtime, 2)
2133: MIPS_SYS(sys_syncfs, 1)
1.1.1.2 root 2134: };
2135:
2136: #undef MIPS_SYS
2137:
1.1.1.8 root 2138: static int do_store_exclusive(CPUMIPSState *env)
2139: {
2140: target_ulong addr;
2141: target_ulong page_addr;
2142: target_ulong val;
2143: int flags;
2144: int segv = 0;
2145: int reg;
2146: int d;
2147:
1.1.1.9 root 2148: addr = env->lladdr;
1.1.1.8 root 2149: page_addr = addr & TARGET_PAGE_MASK;
2150: start_exclusive();
2151: mmap_lock();
2152: flags = page_get_flags(page_addr);
2153: if ((flags & PAGE_READ) == 0) {
2154: segv = 1;
2155: } else {
2156: reg = env->llreg & 0x1f;
2157: d = (env->llreg & 0x20) != 0;
2158: if (d) {
2159: segv = get_user_s64(val, addr);
2160: } else {
2161: segv = get_user_s32(val, addr);
2162: }
2163: if (!segv) {
2164: if (val != env->llval) {
2165: env->active_tc.gpr[reg] = 0;
2166: } else {
2167: if (d) {
2168: segv = put_user_u64(env->llnewval, addr);
2169: } else {
2170: segv = put_user_u32(env->llnewval, addr);
2171: }
2172: if (!segv) {
2173: env->active_tc.gpr[reg] = 1;
2174: }
2175: }
2176: }
2177: }
1.1.1.9 root 2178: env->lladdr = -1;
1.1.1.8 root 2179: if (!segv) {
2180: env->active_tc.PC += 4;
2181: }
2182: mmap_unlock();
2183: end_exclusive();
2184: return segv;
2185: }
2186:
1.1.1.2 root 2187: void cpu_loop(CPUMIPSState *env)
2188: {
2189: target_siginfo_t info;
1.1.1.6 root 2190: int trapnr, ret;
1.1.1.2 root 2191: unsigned int syscall_num;
2192:
2193: for(;;) {
1.1.1.8 root 2194: cpu_exec_start(env);
1.1.1.2 root 2195: trapnr = cpu_mips_exec(env);
1.1.1.8 root 2196: cpu_exec_end(env);
1.1.1.2 root 2197: switch(trapnr) {
2198: case EXCP_SYSCALL:
1.1.1.7 root 2199: syscall_num = env->active_tc.gpr[2] - 4000;
2200: env->active_tc.PC += 4;
1.1.1.6 root 2201: if (syscall_num >= sizeof(mips_syscall_args)) {
1.1.1.13 root 2202: ret = -TARGET_ENOSYS;
1.1.1.6 root 2203: } else {
2204: int nb_args;
2205: abi_ulong sp_reg;
2206: abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
2207:
2208: nb_args = mips_syscall_args[syscall_num];
1.1.1.7 root 2209: sp_reg = env->active_tc.gpr[29];
1.1.1.6 root 2210: switch (nb_args) {
2211: /* these arguments are taken from the stack */
1.1.1.14 root 2212: case 8:
2213: if ((ret = get_user_ual(arg8, sp_reg + 28)) != 0) {
2214: goto done_syscall;
2215: }
2216: case 7:
2217: if ((ret = get_user_ual(arg7, sp_reg + 24)) != 0) {
2218: goto done_syscall;
2219: }
2220: case 6:
2221: if ((ret = get_user_ual(arg6, sp_reg + 20)) != 0) {
2222: goto done_syscall;
2223: }
2224: case 5:
2225: if ((ret = get_user_ual(arg5, sp_reg + 16)) != 0) {
2226: goto done_syscall;
2227: }
1.1.1.6 root 2228: default:
2229: break;
1.1.1.2 root 2230: }
1.1.1.7 root 2231: ret = do_syscall(env, env->active_tc.gpr[2],
2232: env->active_tc.gpr[4],
2233: env->active_tc.gpr[5],
2234: env->active_tc.gpr[6],
2235: env->active_tc.gpr[7],
1.1.1.13 root 2236: arg5, arg6, arg7, arg8);
1.1.1.6 root 2237: }
1.1.1.14 root 2238: done_syscall:
1.1.1.8 root 2239: if (ret == -TARGET_QEMU_ESIGRETURN) {
2240: /* Returning from a successful sigreturn syscall.
2241: Avoid clobbering register state. */
2242: break;
2243: }
1.1.1.6 root 2244: if ((unsigned int)ret >= (unsigned int)(-1133)) {
1.1.1.7 root 2245: env->active_tc.gpr[7] = 1; /* error flag */
1.1.1.6 root 2246: ret = -ret;
2247: } else {
1.1.1.7 root 2248: env->active_tc.gpr[7] = 0; /* error flag */
1.1.1.2 root 2249: }
1.1.1.7 root 2250: env->active_tc.gpr[2] = ret;
1.1.1.2 root 2251: break;
1.1.1.5 root 2252: case EXCP_TLBL:
2253: case EXCP_TLBS:
1.1.1.13 root 2254: case EXCP_AdEL:
2255: case EXCP_AdES:
1.1.1.8 root 2256: info.si_signo = TARGET_SIGSEGV;
2257: info.si_errno = 0;
2258: /* XXX: check env->error_code */
2259: info.si_code = TARGET_SEGV_MAPERR;
2260: info._sifields._sigfault._addr = env->CP0_BadVAddr;
2261: queue_signal(env, info.si_signo, &info);
2262: break;
1.1.1.2 root 2263: case EXCP_CpU:
2264: case EXCP_RI:
1.1.1.4 root 2265: info.si_signo = TARGET_SIGILL;
2266: info.si_errno = 0;
2267: info.si_code = 0;
1.1.1.7 root 2268: queue_signal(env, info.si_signo, &info);
1.1.1.4 root 2269: break;
2270: case EXCP_INTERRUPT:
2271: /* just indicate that signals should be handled asap */
1.1.1.2 root 2272: break;
1.1.1.5 root 2273: case EXCP_DEBUG:
2274: {
2275: int sig;
2276:
2277: sig = gdb_handlesig (env, TARGET_SIGTRAP);
2278: if (sig)
2279: {
2280: info.si_signo = sig;
2281: info.si_errno = 0;
2282: info.si_code = TARGET_TRAP_BRKPT;
1.1.1.7 root 2283: queue_signal(env, info.si_signo, &info);
1.1.1.5 root 2284: }
2285: }
2286: break;
1.1.1.8 root 2287: case EXCP_SC:
2288: if (do_store_exclusive(env)) {
2289: info.si_signo = TARGET_SIGSEGV;
2290: info.si_errno = 0;
2291: info.si_code = TARGET_SEGV_MAPERR;
2292: info._sifields._sigfault._addr = env->active_tc.PC;
2293: queue_signal(env, info.si_signo, &info);
2294: }
2295: break;
1.1.1.2 root 2296: default:
2297: // error:
1.1.1.6 root 2298: fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1.1.1.2 root 2299: trapnr);
2300: cpu_dump_state(env, stderr, fprintf, 0);
2301: abort();
2302: }
2303: process_pending_signals(env);
2304: }
2305: }
2306: #endif
2307:
1.1.1.3 root 2308: #ifdef TARGET_SH4
1.1.1.15! root 2309: void cpu_loop(CPUSH4State *env)
1.1.1.3 root 2310: {
2311: int trapnr, ret;
1.1.1.4 root 2312: target_siginfo_t info;
1.1.1.6 root 2313:
1.1.1.3 root 2314: while (1) {
2315: trapnr = cpu_sh4_exec (env);
1.1.1.6 root 2316:
1.1.1.3 root 2317: switch (trapnr) {
2318: case 0x160:
1.1.1.7 root 2319: env->pc += 2;
1.1.1.6 root 2320: ret = do_syscall(env,
2321: env->gregs[3],
2322: env->gregs[4],
2323: env->gregs[5],
2324: env->gregs[6],
2325: env->gregs[7],
2326: env->gregs[0],
1.1.1.13 root 2327: env->gregs[1],
2328: 0, 0);
1.1.1.4 root 2329: env->gregs[0] = ret;
1.1.1.3 root 2330: break;
1.1.1.6 root 2331: case EXCP_INTERRUPT:
2332: /* just indicate that signals should be handled asap */
2333: break;
2334: case EXCP_DEBUG:
2335: {
2336: int sig;
2337:
2338: sig = gdb_handlesig (env, TARGET_SIGTRAP);
2339: if (sig)
2340: {
2341: info.si_signo = sig;
2342: info.si_errno = 0;
2343: info.si_code = TARGET_TRAP_BRKPT;
1.1.1.7 root 2344: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 2345: }
2346: }
2347: break;
2348: case 0xa0:
2349: case 0xc0:
2350: info.si_signo = SIGSEGV;
2351: info.si_errno = 0;
2352: info.si_code = TARGET_SEGV_MAPERR;
2353: info._sifields._sigfault._addr = env->tea;
1.1.1.7 root 2354: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 2355: break;
2356:
2357: default:
2358: printf ("Unhandled trap: 0x%x\n", trapnr);
2359: cpu_dump_state(env, stderr, fprintf, 0);
2360: exit (1);
2361: }
2362: process_pending_signals (env);
2363: }
2364: }
2365: #endif
2366:
2367: #ifdef TARGET_CRIS
1.1.1.15! root 2368: void cpu_loop(CPUCRISState *env)
1.1.1.6 root 2369: {
2370: int trapnr, ret;
2371: target_siginfo_t info;
2372:
2373: while (1) {
2374: trapnr = cpu_cris_exec (env);
2375: switch (trapnr) {
2376: case 0xaa:
2377: {
2378: info.si_signo = SIGSEGV;
2379: info.si_errno = 0;
2380: /* XXX: check env->error_code */
2381: info.si_code = TARGET_SEGV_MAPERR;
1.1.1.7 root 2382: info._sifields._sigfault._addr = env->pregs[PR_EDA];
2383: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 2384: }
2385: break;
1.1.1.7 root 2386: case EXCP_INTERRUPT:
2387: /* just indicate that signals should be handled asap */
2388: break;
1.1.1.6 root 2389: case EXCP_BREAK:
2390: ret = do_syscall(env,
2391: env->regs[9],
2392: env->regs[10],
2393: env->regs[11],
2394: env->regs[12],
2395: env->regs[13],
2396: env->pregs[7],
1.1.1.13 root 2397: env->pregs[11],
2398: 0, 0);
1.1.1.6 root 2399: env->regs[10] = ret;
2400: break;
1.1.1.4 root 2401: case EXCP_DEBUG:
2402: {
2403: int sig;
2404:
2405: sig = gdb_handlesig (env, TARGET_SIGTRAP);
2406: if (sig)
2407: {
2408: info.si_signo = sig;
2409: info.si_errno = 0;
2410: info.si_code = TARGET_TRAP_BRKPT;
1.1.1.7 root 2411: queue_signal(env, info.si_signo, &info);
1.1.1.4 root 2412: }
2413: }
2414: break;
1.1.1.3 root 2415: default:
2416: printf ("Unhandled trap: 0x%x\n", trapnr);
2417: cpu_dump_state(env, stderr, fprintf, 0);
2418: exit (1);
2419: }
2420: process_pending_signals (env);
2421: }
2422: }
2423: #endif
2424:
1.1.1.8 root 2425: #ifdef TARGET_MICROBLAZE
1.1.1.15! root 2426: void cpu_loop(CPUMBState *env)
1.1.1.8 root 2427: {
2428: int trapnr, ret;
2429: target_siginfo_t info;
2430:
2431: while (1) {
2432: trapnr = cpu_mb_exec (env);
2433: switch (trapnr) {
2434: case 0xaa:
2435: {
2436: info.si_signo = SIGSEGV;
2437: info.si_errno = 0;
2438: /* XXX: check env->error_code */
2439: info.si_code = TARGET_SEGV_MAPERR;
2440: info._sifields._sigfault._addr = 0;
2441: queue_signal(env, info.si_signo, &info);
2442: }
2443: break;
2444: case EXCP_INTERRUPT:
2445: /* just indicate that signals should be handled asap */
2446: break;
2447: case EXCP_BREAK:
2448: /* Return address is 4 bytes after the call. */
2449: env->regs[14] += 4;
2450: ret = do_syscall(env,
2451: env->regs[12],
2452: env->regs[5],
2453: env->regs[6],
2454: env->regs[7],
2455: env->regs[8],
2456: env->regs[9],
1.1.1.13 root 2457: env->regs[10],
2458: 0, 0);
1.1.1.8 root 2459: env->regs[3] = ret;
2460: env->sregs[SR_PC] = env->regs[14];
2461: break;
1.1.1.12 root 2462: case EXCP_HW_EXCP:
2463: env->regs[17] = env->sregs[SR_PC] + 4;
2464: if (env->iflags & D_FLAG) {
2465: env->sregs[SR_ESR] |= 1 << 12;
2466: env->sregs[SR_PC] -= 4;
1.1.1.15! root 2467: /* FIXME: if branch was immed, replay the imm as well. */
1.1.1.12 root 2468: }
2469:
2470: env->iflags &= ~(IMM_FLAG | D_FLAG);
2471:
2472: switch (env->sregs[SR_ESR] & 31) {
1.1.1.14 root 2473: case ESR_EC_DIVZERO:
2474: info.si_signo = SIGFPE;
2475: info.si_errno = 0;
2476: info.si_code = TARGET_FPE_FLTDIV;
2477: info._sifields._sigfault._addr = 0;
2478: queue_signal(env, info.si_signo, &info);
2479: break;
1.1.1.12 root 2480: case ESR_EC_FPU:
2481: info.si_signo = SIGFPE;
2482: info.si_errno = 0;
2483: if (env->sregs[SR_FSR] & FSR_IO) {
2484: info.si_code = TARGET_FPE_FLTINV;
2485: }
2486: if (env->sregs[SR_FSR] & FSR_DZ) {
2487: info.si_code = TARGET_FPE_FLTDIV;
2488: }
2489: info._sifields._sigfault._addr = 0;
2490: queue_signal(env, info.si_signo, &info);
2491: break;
2492: default:
2493: printf ("Unhandled hw-exception: 0x%x\n",
1.1.1.13 root 2494: env->sregs[SR_ESR] & ESR_EC_MASK);
1.1.1.12 root 2495: cpu_dump_state(env, stderr, fprintf, 0);
2496: exit (1);
2497: break;
2498: }
2499: break;
1.1.1.8 root 2500: case EXCP_DEBUG:
2501: {
2502: int sig;
2503:
2504: sig = gdb_handlesig (env, TARGET_SIGTRAP);
2505: if (sig)
2506: {
2507: info.si_signo = sig;
2508: info.si_errno = 0;
2509: info.si_code = TARGET_TRAP_BRKPT;
2510: queue_signal(env, info.si_signo, &info);
2511: }
2512: }
2513: break;
2514: default:
2515: printf ("Unhandled trap: 0x%x\n", trapnr);
2516: cpu_dump_state(env, stderr, fprintf, 0);
2517: exit (1);
2518: }
2519: process_pending_signals (env);
2520: }
2521: }
2522: #endif
2523:
1.1.1.5 root 2524: #ifdef TARGET_M68K
2525:
2526: void cpu_loop(CPUM68KState *env)
2527: {
2528: int trapnr;
2529: unsigned int n;
2530: target_siginfo_t info;
2531: TaskState *ts = env->opaque;
1.1.1.6 root 2532:
1.1.1.5 root 2533: for(;;) {
2534: trapnr = cpu_m68k_exec(env);
2535: switch(trapnr) {
2536: case EXCP_ILLEGAL:
2537: {
2538: if (ts->sim_syscalls) {
2539: uint16_t nr;
2540: nr = lduw(env->pc + 2);
2541: env->pc += 4;
2542: do_m68k_simcall(env, nr);
2543: } else {
2544: goto do_sigill;
2545: }
2546: }
2547: break;
1.1.1.6 root 2548: case EXCP_HALT_INSN:
1.1.1.5 root 2549: /* Semihosing syscall. */
1.1.1.6 root 2550: env->pc += 4;
1.1.1.5 root 2551: do_m68k_semihosting(env, env->dregs[0]);
2552: break;
2553: case EXCP_LINEA:
2554: case EXCP_LINEF:
2555: case EXCP_UNSUPPORTED:
2556: do_sigill:
2557: info.si_signo = SIGILL;
2558: info.si_errno = 0;
2559: info.si_code = TARGET_ILL_ILLOPN;
2560: info._sifields._sigfault._addr = env->pc;
1.1.1.7 root 2561: queue_signal(env, info.si_signo, &info);
1.1.1.5 root 2562: break;
2563: case EXCP_TRAP0:
2564: {
2565: ts->sim_syscalls = 0;
2566: n = env->dregs[0];
2567: env->pc += 2;
1.1.1.6 root 2568: env->dregs[0] = do_syscall(env,
2569: n,
1.1.1.5 root 2570: env->dregs[1],
2571: env->dregs[2],
2572: env->dregs[3],
2573: env->dregs[4],
2574: env->dregs[5],
1.1.1.13 root 2575: env->aregs[0],
2576: 0, 0);
1.1.1.5 root 2577: }
2578: break;
2579: case EXCP_INTERRUPT:
2580: /* just indicate that signals should be handled asap */
2581: break;
2582: case EXCP_ACCESS:
2583: {
2584: info.si_signo = SIGSEGV;
2585: info.si_errno = 0;
2586: /* XXX: check env->error_code */
2587: info.si_code = TARGET_SEGV_MAPERR;
2588: info._sifields._sigfault._addr = env->mmu.ar;
1.1.1.7 root 2589: queue_signal(env, info.si_signo, &info);
1.1.1.5 root 2590: }
2591: break;
2592: case EXCP_DEBUG:
2593: {
2594: int sig;
2595:
2596: sig = gdb_handlesig (env, TARGET_SIGTRAP);
2597: if (sig)
2598: {
2599: info.si_signo = sig;
2600: info.si_errno = 0;
2601: info.si_code = TARGET_TRAP_BRKPT;
1.1.1.7 root 2602: queue_signal(env, info.si_signo, &info);
1.1.1.5 root 2603: }
2604: }
2605: break;
2606: default:
1.1.1.6 root 2607: fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1.1.1.5 root 2608: trapnr);
2609: cpu_dump_state(env, stderr, fprintf, 0);
2610: abort();
2611: }
2612: process_pending_signals(env);
2613: }
2614: }
2615: #endif /* TARGET_M68K */
2616:
1.1.1.6 root 2617: #ifdef TARGET_ALPHA
1.1.1.11 root 2618: static void do_store_exclusive(CPUAlphaState *env, int reg, int quad)
2619: {
2620: target_ulong addr, val, tmp;
2621: target_siginfo_t info;
2622: int ret = 0;
2623:
2624: addr = env->lock_addr;
2625: tmp = env->lock_st_addr;
2626: env->lock_addr = -1;
2627: env->lock_st_addr = 0;
2628:
2629: start_exclusive();
2630: mmap_lock();
2631:
2632: if (addr == tmp) {
2633: if (quad ? get_user_s64(val, addr) : get_user_s32(val, addr)) {
2634: goto do_sigsegv;
2635: }
2636:
2637: if (val == env->lock_value) {
2638: tmp = env->ir[reg];
2639: if (quad ? put_user_u64(tmp, addr) : put_user_u32(tmp, addr)) {
2640: goto do_sigsegv;
2641: }
2642: ret = 1;
2643: }
2644: }
2645: env->ir[reg] = ret;
2646: env->pc += 4;
2647:
2648: mmap_unlock();
2649: end_exclusive();
2650: return;
2651:
2652: do_sigsegv:
2653: mmap_unlock();
2654: end_exclusive();
2655:
2656: info.si_signo = TARGET_SIGSEGV;
2657: info.si_errno = 0;
2658: info.si_code = TARGET_SEGV_MAPERR;
2659: info._sifields._sigfault._addr = addr;
2660: queue_signal(env, TARGET_SIGSEGV, &info);
2661: }
2662:
1.1.1.15! root 2663: void cpu_loop(CPUAlphaState *env)
1.1.1.6 root 2664: {
2665: int trapnr;
2666: target_siginfo_t info;
1.1.1.11 root 2667: abi_long sysret;
1.1.1.6 root 2668:
2669: while (1) {
2670: trapnr = cpu_alpha_exec (env);
2671:
1.1.1.11 root 2672: /* All of the traps imply a transition through PALcode, which
2673: implies an REI instruction has been executed. Which means
2674: that the intr_flag should be cleared. */
2675: env->intr_flag = 0;
2676:
1.1.1.6 root 2677: switch (trapnr) {
2678: case EXCP_RESET:
2679: fprintf(stderr, "Reset requested. Exit\n");
2680: exit(1);
2681: break;
2682: case EXCP_MCHK:
2683: fprintf(stderr, "Machine check exception. Exit\n");
2684: exit(1);
2685: break;
1.1.1.13 root 2686: case EXCP_SMP_INTERRUPT:
2687: case EXCP_CLK_INTERRUPT:
2688: case EXCP_DEV_INTERRUPT:
1.1.1.6 root 2689: fprintf(stderr, "External interrupt. Exit\n");
2690: exit(1);
2691: break;
1.1.1.13 root 2692: case EXCP_MMFAULT:
1.1.1.11 root 2693: env->lock_addr = -1;
2694: info.si_signo = TARGET_SIGSEGV;
2695: info.si_errno = 0;
1.1.1.13 root 2696: info.si_code = (page_get_flags(env->trap_arg0) & PAGE_VALID
1.1.1.11 root 2697: ? TARGET_SEGV_ACCERR : TARGET_SEGV_MAPERR);
1.1.1.13 root 2698: info._sifields._sigfault._addr = env->trap_arg0;
1.1.1.11 root 2699: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 2700: break;
2701: case EXCP_UNALIGN:
1.1.1.11 root 2702: env->lock_addr = -1;
2703: info.si_signo = TARGET_SIGBUS;
2704: info.si_errno = 0;
2705: info.si_code = TARGET_BUS_ADRALN;
1.1.1.13 root 2706: info._sifields._sigfault._addr = env->trap_arg0;
1.1.1.11 root 2707: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 2708: break;
2709: case EXCP_OPCDEC:
1.1.1.11 root 2710: do_sigill:
2711: env->lock_addr = -1;
2712: info.si_signo = TARGET_SIGILL;
2713: info.si_errno = 0;
2714: info.si_code = TARGET_ILL_ILLOPC;
2715: info._sifields._sigfault._addr = env->pc;
2716: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 2717: break;
1.1.1.13 root 2718: case EXCP_ARITH:
2719: env->lock_addr = -1;
2720: info.si_signo = TARGET_SIGFPE;
2721: info.si_errno = 0;
2722: info.si_code = TARGET_FPE_FLTINV;
2723: info._sifields._sigfault._addr = env->pc;
2724: queue_signal(env, info.si_signo, &info);
2725: break;
1.1.1.6 root 2726: case EXCP_FEN:
1.1.1.11 root 2727: /* No-op. Linux simply re-enables the FPU. */
1.1.1.6 root 2728: break;
1.1.1.13 root 2729: case EXCP_CALL_PAL:
1.1.1.11 root 2730: env->lock_addr = -1;
1.1.1.13 root 2731: switch (env->error_code) {
1.1.1.11 root 2732: case 0x80:
2733: /* BPT */
2734: info.si_signo = TARGET_SIGTRAP;
2735: info.si_errno = 0;
2736: info.si_code = TARGET_TRAP_BRKPT;
2737: info._sifields._sigfault._addr = env->pc;
2738: queue_signal(env, info.si_signo, &info);
2739: break;
2740: case 0x81:
2741: /* BUGCHK */
2742: info.si_signo = TARGET_SIGTRAP;
2743: info.si_errno = 0;
2744: info.si_code = 0;
2745: info._sifields._sigfault._addr = env->pc;
2746: queue_signal(env, info.si_signo, &info);
2747: break;
2748: case 0x83:
2749: /* CALLSYS */
2750: trapnr = env->ir[IR_V0];
2751: sysret = do_syscall(env, trapnr,
2752: env->ir[IR_A0], env->ir[IR_A1],
2753: env->ir[IR_A2], env->ir[IR_A3],
1.1.1.13 root 2754: env->ir[IR_A4], env->ir[IR_A5],
2755: 0, 0);
1.1.1.11 root 2756: if (trapnr == TARGET_NR_sigreturn
2757: || trapnr == TARGET_NR_rt_sigreturn) {
2758: break;
2759: }
2760: /* Syscall writes 0 to V0 to bypass error check, similar
2761: to how this is handled internal to Linux kernel. */
2762: if (env->ir[IR_V0] == 0) {
2763: env->ir[IR_V0] = sysret;
2764: } else {
2765: env->ir[IR_V0] = (sysret < 0 ? -sysret : sysret);
2766: env->ir[IR_A3] = (sysret < 0);
2767: }
2768: break;
2769: case 0x86:
2770: /* IMB */
2771: /* ??? We can probably elide the code using page_unprotect
2772: that is checking for self-modifying code. Instead we
2773: could simply call tb_flush here. Until we work out the
2774: changes required to turn off the extra write protection,
2775: this can be a no-op. */
2776: break;
2777: case 0x9E:
2778: /* RDUNIQUE */
2779: /* Handled in the translator for usermode. */
2780: abort();
2781: case 0x9F:
2782: /* WRUNIQUE */
2783: /* Handled in the translator for usermode. */
2784: abort();
2785: case 0xAA:
2786: /* GENTRAP */
2787: info.si_signo = TARGET_SIGFPE;
2788: switch (env->ir[IR_A0]) {
2789: case TARGET_GEN_INTOVF:
2790: info.si_code = TARGET_FPE_INTOVF;
2791: break;
2792: case TARGET_GEN_INTDIV:
2793: info.si_code = TARGET_FPE_INTDIV;
2794: break;
2795: case TARGET_GEN_FLTOVF:
2796: info.si_code = TARGET_FPE_FLTOVF;
2797: break;
2798: case TARGET_GEN_FLTUND:
2799: info.si_code = TARGET_FPE_FLTUND;
2800: break;
2801: case TARGET_GEN_FLTINV:
2802: info.si_code = TARGET_FPE_FLTINV;
2803: break;
2804: case TARGET_GEN_FLTINE:
2805: info.si_code = TARGET_FPE_FLTRES;
2806: break;
2807: case TARGET_GEN_ROPRAND:
2808: info.si_code = 0;
2809: break;
2810: default:
2811: info.si_signo = TARGET_SIGTRAP;
2812: info.si_code = 0;
2813: break;
2814: }
2815: info.si_errno = 0;
2816: info._sifields._sigfault._addr = env->pc;
2817: queue_signal(env, info.si_signo, &info);
2818: break;
2819: default:
2820: goto do_sigill;
2821: }
1.1.1.6 root 2822: break;
2823: case EXCP_DEBUG:
1.1.1.11 root 2824: info.si_signo = gdb_handlesig (env, TARGET_SIGTRAP);
2825: if (info.si_signo) {
2826: env->lock_addr = -1;
2827: info.si_errno = 0;
2828: info.si_code = TARGET_TRAP_BRKPT;
2829: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 2830: }
2831: break;
1.1.1.11 root 2832: case EXCP_STL_C:
2833: case EXCP_STQ_C:
2834: do_store_exclusive(env, env->error_code, trapnr - EXCP_STL_C);
2835: break;
1.1.1.6 root 2836: default:
2837: printf ("Unhandled trap: 0x%x\n", trapnr);
2838: cpu_dump_state(env, stderr, fprintf, 0);
2839: exit (1);
2840: }
2841: process_pending_signals (env);
2842: }
2843: }
2844: #endif /* TARGET_ALPHA */
2845:
1.1.1.13 root 2846: #ifdef TARGET_S390X
2847: void cpu_loop(CPUS390XState *env)
2848: {
2849: int trapnr;
2850: target_siginfo_t info;
2851:
2852: while (1) {
2853: trapnr = cpu_s390x_exec (env);
2854:
2855: switch (trapnr) {
2856: case EXCP_INTERRUPT:
2857: /* just indicate that signals should be handled asap */
2858: break;
2859: case EXCP_DEBUG:
2860: {
2861: int sig;
2862:
2863: sig = gdb_handlesig (env, TARGET_SIGTRAP);
2864: if (sig) {
2865: info.si_signo = sig;
2866: info.si_errno = 0;
2867: info.si_code = TARGET_TRAP_BRKPT;
2868: queue_signal(env, info.si_signo, &info);
2869: }
2870: }
2871: break;
2872: case EXCP_SVC:
2873: {
2874: int n = env->int_svc_code;
2875: if (!n) {
2876: /* syscalls > 255 */
2877: n = env->regs[1];
2878: }
2879: env->psw.addr += env->int_svc_ilc;
2880: env->regs[2] = do_syscall(env, n,
2881: env->regs[2],
2882: env->regs[3],
2883: env->regs[4],
2884: env->regs[5],
2885: env->regs[6],
2886: env->regs[7],
2887: 0, 0);
2888: }
2889: break;
2890: case EXCP_ADDR:
2891: {
2892: info.si_signo = SIGSEGV;
2893: info.si_errno = 0;
2894: /* XXX: check env->error_code */
2895: info.si_code = TARGET_SEGV_MAPERR;
2896: info._sifields._sigfault._addr = env->__excp_addr;
2897: queue_signal(env, info.si_signo, &info);
2898: }
2899: break;
2900: case EXCP_SPEC:
2901: {
2902: fprintf(stderr,"specification exception insn 0x%08x%04x\n", ldl(env->psw.addr), lduw(env->psw.addr + 4));
2903: info.si_signo = SIGILL;
2904: info.si_errno = 0;
2905: info.si_code = TARGET_ILL_ILLOPC;
2906: info._sifields._sigfault._addr = env->__excp_addr;
2907: queue_signal(env, info.si_signo, &info);
2908: }
2909: break;
2910: default:
2911: printf ("Unhandled trap: 0x%x\n", trapnr);
2912: cpu_dump_state(env, stderr, fprintf, 0);
2913: exit (1);
2914: }
2915: process_pending_signals (env);
2916: }
2917: }
2918:
2919: #endif /* TARGET_S390X */
2920:
1.1.1.15! root 2921: THREAD CPUArchState *thread_env;
1.1 root 2922:
1.1.1.8 root 2923: void task_settid(TaskState *ts)
2924: {
2925: if (ts->ts_tid == 0) {
1.1.1.9 root 2926: #ifdef CONFIG_USE_NPTL
1.1.1.8 root 2927: ts->ts_tid = (pid_t)syscall(SYS_gettid);
2928: #else
2929: /* when no threads are used, tid becomes pid */
2930: ts->ts_tid = getpid();
2931: #endif
2932: }
2933: }
2934:
2935: void stop_all_tasks(void)
2936: {
2937: /*
2938: * We trust that when using NPTL, start_exclusive()
2939: * handles thread stopping correctly.
2940: */
2941: start_exclusive();
2942: }
2943:
1.1.1.7 root 2944: /* Assumes contents are already zeroed. */
2945: void init_task_state(TaskState *ts)
2946: {
2947: int i;
2948:
2949: ts->used = 1;
2950: ts->first_free = ts->sigqueue_table;
2951: for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) {
2952: ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1];
2953: }
2954: ts->sigqueue_table[i].next = NULL;
2955: }
1.1.1.14 root 2956:
2957: static void handle_arg_help(const char *arg)
2958: {
2959: usage();
2960: }
2961:
2962: static void handle_arg_log(const char *arg)
2963: {
2964: int mask;
2965: const CPULogItem *item;
2966:
2967: mask = cpu_str_to_log_mask(arg);
2968: if (!mask) {
2969: printf("Log items (comma separated):\n");
2970: for (item = cpu_log_items; item->mask != 0; item++) {
2971: printf("%-10s %s\n", item->name, item->help);
2972: }
2973: exit(1);
2974: }
2975: cpu_set_log(mask);
2976: }
2977:
1.1.1.15! root 2978: static void handle_arg_log_filename(const char *arg)
! 2979: {
! 2980: cpu_set_log_filename(arg);
! 2981: }
! 2982:
1.1.1.14 root 2983: static void handle_arg_set_env(const char *arg)
2984: {
2985: char *r, *p, *token;
2986: r = p = strdup(arg);
2987: while ((token = strsep(&p, ",")) != NULL) {
2988: if (envlist_setenv(envlist, token) != 0) {
2989: usage();
2990: }
2991: }
2992: free(r);
2993: }
2994:
2995: static void handle_arg_unset_env(const char *arg)
2996: {
2997: char *r, *p, *token;
2998: r = p = strdup(arg);
2999: while ((token = strsep(&p, ",")) != NULL) {
3000: if (envlist_unsetenv(envlist, token) != 0) {
3001: usage();
3002: }
3003: }
3004: free(r);
3005: }
3006:
3007: static void handle_arg_argv0(const char *arg)
3008: {
3009: argv0 = strdup(arg);
3010: }
3011:
3012: static void handle_arg_stack_size(const char *arg)
3013: {
3014: char *p;
3015: guest_stack_size = strtoul(arg, &p, 0);
3016: if (guest_stack_size == 0) {
3017: usage();
3018: }
3019:
3020: if (*p == 'M') {
3021: guest_stack_size *= 1024 * 1024;
3022: } else if (*p == 'k' || *p == 'K') {
3023: guest_stack_size *= 1024;
3024: }
3025: }
3026:
3027: static void handle_arg_ld_prefix(const char *arg)
3028: {
3029: interp_prefix = strdup(arg);
3030: }
3031:
3032: static void handle_arg_pagesize(const char *arg)
3033: {
3034: qemu_host_page_size = atoi(arg);
3035: if (qemu_host_page_size == 0 ||
3036: (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
3037: fprintf(stderr, "page size must be a power of two\n");
3038: exit(1);
3039: }
3040: }
3041:
3042: static void handle_arg_gdb(const char *arg)
3043: {
3044: gdbstub_port = atoi(arg);
3045: }
3046:
3047: static void handle_arg_uname(const char *arg)
3048: {
3049: qemu_uname_release = strdup(arg);
3050: }
3051:
3052: static void handle_arg_cpu(const char *arg)
3053: {
3054: cpu_model = strdup(arg);
3055: if (cpu_model == NULL || strcmp(cpu_model, "?") == 0) {
3056: /* XXX: implement xxx_cpu_list for targets that still miss it */
3057: #if defined(cpu_list_id)
3058: cpu_list_id(stdout, &fprintf, "");
3059: #elif defined(cpu_list)
3060: cpu_list(stdout, &fprintf); /* deprecated */
3061: #endif
3062: exit(1);
3063: }
3064: }
3065:
3066: #if defined(CONFIG_USE_GUEST_BASE)
3067: static void handle_arg_guest_base(const char *arg)
3068: {
3069: guest_base = strtol(arg, NULL, 0);
3070: have_guest_base = 1;
3071: }
3072:
3073: static void handle_arg_reserved_va(const char *arg)
3074: {
3075: char *p;
3076: int shift = 0;
3077: reserved_va = strtoul(arg, &p, 0);
3078: switch (*p) {
3079: case 'k':
3080: case 'K':
3081: shift = 10;
3082: break;
3083: case 'M':
3084: shift = 20;
3085: break;
3086: case 'G':
3087: shift = 30;
3088: break;
3089: }
3090: if (shift) {
3091: unsigned long unshifted = reserved_va;
3092: p++;
3093: reserved_va <<= shift;
3094: if (((reserved_va >> shift) != unshifted)
3095: #if HOST_LONG_BITS > TARGET_VIRT_ADDR_SPACE_BITS
3096: || (reserved_va > (1ul << TARGET_VIRT_ADDR_SPACE_BITS))
3097: #endif
3098: ) {
3099: fprintf(stderr, "Reserved virtual address too big\n");
3100: exit(1);
3101: }
3102: }
3103: if (*p) {
3104: fprintf(stderr, "Unrecognised -R size suffix '%s'\n", p);
3105: exit(1);
3106: }
3107: }
3108: #endif
3109:
3110: static void handle_arg_singlestep(const char *arg)
3111: {
3112: singlestep = 1;
3113: }
3114:
3115: static void handle_arg_strace(const char *arg)
3116: {
3117: do_strace = 1;
3118: }
3119:
3120: static void handle_arg_version(const char *arg)
3121: {
3122: printf("qemu-" TARGET_ARCH " version " QEMU_VERSION QEMU_PKGVERSION
3123: ", Copyright (c) 2003-2008 Fabrice Bellard\n");
3124: exit(0);
3125: }
3126:
3127: struct qemu_argument {
3128: const char *argv;
3129: const char *env;
3130: bool has_arg;
3131: void (*handle_opt)(const char *arg);
3132: const char *example;
3133: const char *help;
3134: };
3135:
3136: struct qemu_argument arg_table[] = {
3137: {"h", "", false, handle_arg_help,
3138: "", "print this help"},
3139: {"g", "QEMU_GDB", true, handle_arg_gdb,
3140: "port", "wait gdb connection to 'port'"},
3141: {"L", "QEMU_LD_PREFIX", true, handle_arg_ld_prefix,
3142: "path", "set the elf interpreter prefix to 'path'"},
3143: {"s", "QEMU_STACK_SIZE", true, handle_arg_stack_size,
3144: "size", "set the stack size to 'size' bytes"},
3145: {"cpu", "QEMU_CPU", true, handle_arg_cpu,
3146: "model", "select CPU (-cpu ? for list)"},
3147: {"E", "QEMU_SET_ENV", true, handle_arg_set_env,
3148: "var=value", "sets targets environment variable (see below)"},
3149: {"U", "QEMU_UNSET_ENV", true, handle_arg_unset_env,
3150: "var", "unsets targets environment variable (see below)"},
3151: {"0", "QEMU_ARGV0", true, handle_arg_argv0,
3152: "argv0", "forces target process argv[0] to be 'argv0'"},
3153: {"r", "QEMU_UNAME", true, handle_arg_uname,
3154: "uname", "set qemu uname release string to 'uname'"},
3155: #if defined(CONFIG_USE_GUEST_BASE)
3156: {"B", "QEMU_GUEST_BASE", true, handle_arg_guest_base,
3157: "address", "set guest_base address to 'address'"},
3158: {"R", "QEMU_RESERVED_VA", true, handle_arg_reserved_va,
3159: "size", "reserve 'size' bytes for guest virtual address space"},
3160: #endif
3161: {"d", "QEMU_LOG", true, handle_arg_log,
3162: "options", "activate log"},
1.1.1.15! root 3163: {"D", "QEMU_LOG_FILENAME", true, handle_arg_log_filename,
! 3164: "logfile", "override default logfile location"},
1.1.1.14 root 3165: {"p", "QEMU_PAGESIZE", true, handle_arg_pagesize,
3166: "pagesize", "set the host page size to 'pagesize'"},
3167: {"singlestep", "QEMU_SINGLESTEP", false, handle_arg_singlestep,
3168: "", "run in singlestep mode"},
3169: {"strace", "QEMU_STRACE", false, handle_arg_strace,
3170: "", "log system calls"},
3171: {"version", "QEMU_VERSION", false, handle_arg_version,
3172: "", "display version information and exit"},
3173: {NULL, NULL, false, NULL, NULL, NULL}
3174: };
3175:
3176: static void usage(void)
3177: {
3178: struct qemu_argument *arginfo;
3179: int maxarglen;
3180: int maxenvlen;
3181:
3182: printf("usage: qemu-" TARGET_ARCH " [options] program [arguments...]\n"
3183: "Linux CPU emulator (compiled for " TARGET_ARCH " emulation)\n"
3184: "\n"
3185: "Options and associated environment variables:\n"
3186: "\n");
3187:
3188: maxarglen = maxenvlen = 0;
3189:
3190: for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
3191: if (strlen(arginfo->env) > maxenvlen) {
3192: maxenvlen = strlen(arginfo->env);
3193: }
3194: if (strlen(arginfo->argv) > maxarglen) {
3195: maxarglen = strlen(arginfo->argv);
3196: }
3197: }
3198:
3199: printf("%-*s%-*sDescription\n", maxarglen+3, "Argument",
3200: maxenvlen+1, "Env-variable");
3201:
3202: for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
3203: if (arginfo->has_arg) {
3204: printf("-%s %-*s %-*s %s\n", arginfo->argv,
3205: (int)(maxarglen-strlen(arginfo->argv)), arginfo->example,
3206: maxenvlen, arginfo->env, arginfo->help);
3207: } else {
3208: printf("-%-*s %-*s %s\n", maxarglen+1, arginfo->argv,
3209: maxenvlen, arginfo->env,
3210: arginfo->help);
3211: }
3212: }
3213:
3214: printf("\n"
3215: "Defaults:\n"
3216: "QEMU_LD_PREFIX = %s\n"
3217: "QEMU_STACK_SIZE = %ld byte\n"
3218: "QEMU_LOG = %s\n",
3219: interp_prefix,
3220: guest_stack_size,
3221: DEBUG_LOGFILE);
3222:
3223: printf("\n"
3224: "You can use -E and -U options or the QEMU_SET_ENV and\n"
3225: "QEMU_UNSET_ENV environment variables to set and unset\n"
3226: "environment variables for the target process.\n"
3227: "It is possible to provide several variables by separating them\n"
3228: "by commas in getsubopt(3) style. Additionally it is possible to\n"
3229: "provide the -E and -U options multiple times.\n"
3230: "The following lines are equivalent:\n"
3231: " -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n"
3232: " -E var1=val2,var2=val2 -U LD_PRELOAD,LD_DEBUG\n"
3233: " QEMU_SET_ENV=var1=val2,var2=val2 QEMU_UNSET_ENV=LD_PRELOAD,LD_DEBUG\n"
3234: "Note that if you provide several changes to a single variable\n"
3235: "the last change will stay in effect.\n");
3236:
3237: exit(1);
3238: }
3239:
3240: static int parse_args(int argc, char **argv)
3241: {
3242: const char *r;
3243: int optind;
3244: struct qemu_argument *arginfo;
3245:
3246: for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
3247: if (arginfo->env == NULL) {
3248: continue;
3249: }
3250:
3251: r = getenv(arginfo->env);
3252: if (r != NULL) {
3253: arginfo->handle_opt(r);
3254: }
3255: }
3256:
3257: optind = 1;
3258: for (;;) {
3259: if (optind >= argc) {
3260: break;
3261: }
3262: r = argv[optind];
3263: if (r[0] != '-') {
3264: break;
3265: }
3266: optind++;
3267: r++;
3268: if (!strcmp(r, "-")) {
3269: break;
3270: }
3271:
3272: for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
3273: if (!strcmp(r, arginfo->argv)) {
3274: if (arginfo->has_arg) {
3275: if (optind >= argc) {
3276: usage();
3277: }
3278: arginfo->handle_opt(argv[optind]);
3279: optind++;
3280: } else {
3281: arginfo->handle_opt(NULL);
3282: }
3283: break;
3284: }
3285: }
3286:
3287: /* no option matched the current argv */
3288: if (arginfo->handle_opt == NULL) {
3289: usage();
3290: }
3291: }
3292:
3293: if (optind >= argc) {
3294: usage();
3295: }
3296:
3297: filename = argv[optind];
3298: exec_path = argv[optind];
3299:
3300: return optind;
3301: }
3302:
1.1.1.7 root 3303: int main(int argc, char **argv, char **envp)
1.1 root 3304: {
1.1.1.13 root 3305: const char *log_file = DEBUG_LOGFILE;
1.1 root 3306: struct target_pt_regs regs1, *regs = ®s1;
3307: struct image_info info1, *info = &info1;
1.1.1.8 root 3308: struct linux_binprm bprm;
1.1.1.12 root 3309: TaskState *ts;
1.1.1.15! root 3310: CPUArchState *env;
1.1 root 3311: int optind;
1.1.1.7 root 3312: char **target_environ, **wrk;
1.1.1.8 root 3313: char **target_argv;
3314: int target_argc;
3315: int i;
3316: int ret;
1.1.1.6 root 3317:
1.1.1.15! root 3318: module_call_init(MODULE_INIT_QOM);
! 3319:
1.1.1.7 root 3320: qemu_cache_utils_init(envp);
3321:
3322: if ((envlist = envlist_create()) == NULL) {
3323: (void) fprintf(stderr, "Unable to allocate envlist\n");
3324: exit(1);
3325: }
3326:
3327: /* add current environment into the list */
3328: for (wrk = environ; *wrk != NULL; wrk++) {
3329: (void) envlist_setenv(envlist, *wrk);
3330: }
3331:
1.1.1.11 root 3332: /* Read the stack limit from the kernel. If it's "unlimited",
3333: then we can do little else besides use the default. */
3334: {
3335: struct rlimit lim;
3336: if (getrlimit(RLIMIT_STACK, &lim) == 0
3337: && lim.rlim_cur != RLIM_INFINITY
3338: && lim.rlim_cur == (target_long)lim.rlim_cur) {
3339: guest_stack_size = lim.rlim_cur;
3340: }
3341: }
3342:
1.1.1.6 root 3343: cpu_model = NULL;
1.1.1.11 root 3344: #if defined(cpudef_setup)
3345: cpudef_setup(); /* parse cpu definitions in target config file (TBD) */
3346: #endif
3347:
1.1.1.13 root 3348: /* init debug */
3349: cpu_set_log_filename(log_file);
1.1.1.14 root 3350: optind = parse_args(argc, argv);
1.1 root 3351:
3352: /* Zero out regs */
3353: memset(regs, 0, sizeof(struct target_pt_regs));
3354:
3355: /* Zero out image_info */
3356: memset(info, 0, sizeof(struct image_info));
3357:
1.1.1.8 root 3358: memset(&bprm, 0, sizeof (bprm));
3359:
1.1 root 3360: /* Scan interp_prefix dir for replacement files. */
3361: init_paths(interp_prefix);
3362:
1.1.1.6 root 3363: if (cpu_model == NULL) {
3364: #if defined(TARGET_I386)
3365: #ifdef TARGET_X86_64
3366: cpu_model = "qemu64";
3367: #else
3368: cpu_model = "qemu32";
3369: #endif
3370: #elif defined(TARGET_ARM)
1.1.1.8 root 3371: cpu_model = "any";
1.1.1.13 root 3372: #elif defined(TARGET_UNICORE32)
3373: cpu_model = "any";
1.1.1.6 root 3374: #elif defined(TARGET_M68K)
3375: cpu_model = "any";
3376: #elif defined(TARGET_SPARC)
3377: #ifdef TARGET_SPARC64
3378: cpu_model = "TI UltraSparc II";
3379: #else
3380: cpu_model = "Fujitsu MB86904";
3381: #endif
3382: #elif defined(TARGET_MIPS)
3383: #if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64)
3384: cpu_model = "20Kc";
3385: #else
3386: cpu_model = "24Kf";
3387: #endif
3388: #elif defined(TARGET_PPC)
3389: #ifdef TARGET_PPC64
1.1.1.10 root 3390: cpu_model = "970fx";
1.1.1.6 root 3391: #else
3392: cpu_model = "750";
3393: #endif
3394: #else
3395: cpu_model = "any";
3396: #endif
3397: }
1.1.1.14 root 3398: tcg_exec_init(0);
3399: cpu_exec_init_all();
1.1 root 3400: /* NOTE: we need to init the CPU at this stage to get
3401: qemu_host_page_size */
1.1.1.6 root 3402: env = cpu_init(cpu_model);
3403: if (!env) {
3404: fprintf(stderr, "Unable to find CPU definition\n");
3405: exit(1);
3406: }
1.1.1.9 root 3407: #if defined(TARGET_I386) || defined(TARGET_SPARC) || defined(TARGET_PPC)
1.1.1.15! root 3408: cpu_state_reset(env);
1.1.1.9 root 3409: #endif
3410:
1.1.1.7 root 3411: thread_env = env;
1.1.1.6 root 3412:
3413: if (getenv("QEMU_STRACE")) {
3414: do_strace = 1;
1.1 root 3415: }
1.1.1.6 root 3416:
1.1.1.7 root 3417: target_environ = envlist_to_environ(envlist, NULL);
3418: envlist_free(envlist);
1.1.1.6 root 3419:
1.1.1.9 root 3420: #if defined(CONFIG_USE_GUEST_BASE)
3421: /*
3422: * Now that page sizes are configured in cpu_init() we can do
3423: * proper page alignment for guest_base.
3424: */
3425: guest_base = HOST_PAGE_ALIGN(guest_base);
3426:
1.1.1.11 root 3427: if (reserved_va) {
3428: void *p;
3429: int flags;
3430:
3431: flags = MAP_ANONYMOUS | MAP_PRIVATE | MAP_NORESERVE;
3432: if (have_guest_base) {
3433: flags |= MAP_FIXED;
3434: }
3435: p = mmap((void *)guest_base, reserved_va, PROT_NONE, flags, -1, 0);
3436: if (p == MAP_FAILED) {
3437: fprintf(stderr, "Unable to reserve guest address space\n");
3438: exit(1);
3439: }
3440: guest_base = (unsigned long)p;
3441: /* Make sure the address is properly aligned. */
3442: if (guest_base & ~qemu_host_page_mask) {
3443: munmap(p, reserved_va);
3444: p = mmap((void *)guest_base, reserved_va + qemu_host_page_size,
3445: PROT_NONE, flags, -1, 0);
3446: if (p == MAP_FAILED) {
3447: fprintf(stderr, "Unable to reserve guest address space\n");
3448: exit(1);
3449: }
3450: guest_base = HOST_PAGE_ALIGN((unsigned long)p);
3451: }
3452: qemu_log("Reserved 0x%lx bytes of guest address space\n", reserved_va);
1.1.1.15! root 3453: mmap_next_start = reserved_va;
1.1.1.11 root 3454: }
1.1.1.14 root 3455:
3456: if (reserved_va || have_guest_base) {
3457: if (!guest_validate_base(guest_base)) {
3458: fprintf(stderr, "Guest base/Reserved VA rejected by guest code\n");
3459: exit(1);
3460: }
3461: }
1.1.1.11 root 3462: #endif /* CONFIG_USE_GUEST_BASE */
3463:
1.1.1.9 root 3464: /*
3465: * Read in mmap_min_addr kernel parameter. This value is used
3466: * When loading the ELF image to determine whether guest_base
1.1.1.11 root 3467: * is needed. It is also used in mmap_find_vma.
1.1.1.9 root 3468: */
1.1.1.11 root 3469: {
1.1.1.9 root 3470: FILE *fp;
3471:
3472: if ((fp = fopen("/proc/sys/vm/mmap_min_addr", "r")) != NULL) {
3473: unsigned long tmp;
3474: if (fscanf(fp, "%lu", &tmp) == 1) {
3475: mmap_min_addr = tmp;
3476: qemu_log("host mmap_min_addr=0x%lx\n", mmap_min_addr);
3477: }
3478: fclose(fp);
3479: }
3480: }
3481:
1.1.1.8 root 3482: /*
3483: * Prepare copy of argv vector for target.
3484: */
3485: target_argc = argc - optind;
3486: target_argv = calloc(target_argc + 1, sizeof (char *));
3487: if (target_argv == NULL) {
3488: (void) fprintf(stderr, "Unable to allocate memory for target_argv\n");
3489: exit(1);
3490: }
3491:
3492: /*
3493: * If argv0 is specified (using '-0' switch) we replace
3494: * argv[0] pointer with the given one.
3495: */
3496: i = 0;
3497: if (argv0 != NULL) {
3498: target_argv[i++] = strdup(argv0);
3499: }
3500: for (; i < target_argc; i++) {
3501: target_argv[i] = strdup(argv[optind + i]);
3502: }
3503: target_argv[target_argc] = NULL;
3504:
1.1.1.14 root 3505: ts = g_malloc0 (sizeof(TaskState));
1.1.1.8 root 3506: init_task_state(ts);
3507: /* build Task State */
3508: ts->info = info;
3509: ts->bprm = &bprm;
3510: env->opaque = ts;
3511: task_settid(ts);
3512:
3513: ret = loader_exec(filename, target_argv, target_environ, regs,
3514: info, &bprm);
3515: if (ret != 0) {
3516: printf("Error %d while loading %s\n", ret, filename);
1.1.1.6 root 3517: _exit(1);
3518: }
3519:
3520: for (wrk = target_environ; *wrk; wrk++) {
3521: free(*wrk);
3522: }
3523:
3524: free(target_environ);
3525:
1.1.1.7 root 3526: if (qemu_log_enabled()) {
1.1.1.9 root 3527: #if defined(CONFIG_USE_GUEST_BASE)
3528: qemu_log("guest_base 0x%lx\n", guest_base);
3529: #endif
1.1.1.7 root 3530: log_page_dump();
1.1.1.6 root 3531:
1.1.1.7 root 3532: qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk);
3533: qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code);
3534: qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n",
3535: info->start_code);
3536: qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n",
3537: info->start_data);
3538: qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data);
3539: qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n",
3540: info->start_stack);
3541: qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk);
3542: qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry);
1.1 root 3543: }
3544:
1.1.1.3 root 3545: target_set_brk(info->brk);
1.1 root 3546: syscall_init();
3547: signal_init();
3548:
1.1.1.11 root 3549: #if defined(CONFIG_USE_GUEST_BASE)
3550: /* Now that we've loaded the binary, GUEST_BASE is fixed. Delay
3551: generating the prologue until now so that the prologue can take
3552: the real value of GUEST_BASE into account. */
3553: tcg_prologue_init(&tcg_ctx);
3554: #endif
3555:
1.1 root 3556: #if defined(TARGET_I386)
3557: cpu_x86_set_cpl(env, 3);
3558:
3559: env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
3560: env->hflags |= HF_PE_MASK;
3561: if (env->cpuid_features & CPUID_SSE) {
3562: env->cr[4] |= CR4_OSFXSR_MASK;
3563: env->hflags |= HF_OSFXSR_MASK;
3564: }
1.1.1.6 root 3565: #ifndef TARGET_ABI32
3566: /* enable 64 bit mode if possible */
3567: if (!(env->cpuid_ext2_features & CPUID_EXT2_LM)) {
3568: fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n");
3569: exit(1);
3570: }
3571: env->cr[4] |= CR4_PAE_MASK;
3572: env->efer |= MSR_EFER_LMA | MSR_EFER_LME;
3573: env->hflags |= HF_LMA_MASK;
3574: #endif
1.1 root 3575:
3576: /* flags setup : we activate the IRQs by default as in user mode */
3577: env->eflags |= IF_MASK;
1.1.1.6 root 3578:
1.1 root 3579: /* linux register setup */
1.1.1.6 root 3580: #ifndef TARGET_ABI32
3581: env->regs[R_EAX] = regs->rax;
3582: env->regs[R_EBX] = regs->rbx;
3583: env->regs[R_ECX] = regs->rcx;
3584: env->regs[R_EDX] = regs->rdx;
3585: env->regs[R_ESI] = regs->rsi;
3586: env->regs[R_EDI] = regs->rdi;
3587: env->regs[R_EBP] = regs->rbp;
3588: env->regs[R_ESP] = regs->rsp;
3589: env->eip = regs->rip;
3590: #else
1.1 root 3591: env->regs[R_EAX] = regs->eax;
3592: env->regs[R_EBX] = regs->ebx;
3593: env->regs[R_ECX] = regs->ecx;
3594: env->regs[R_EDX] = regs->edx;
3595: env->regs[R_ESI] = regs->esi;
3596: env->regs[R_EDI] = regs->edi;
3597: env->regs[R_EBP] = regs->ebp;
3598: env->regs[R_ESP] = regs->esp;
3599: env->eip = regs->eip;
1.1.1.6 root 3600: #endif
1.1 root 3601:
3602: /* linux interrupt setup */
1.1.1.7 root 3603: #ifndef TARGET_ABI32
3604: env->idt.limit = 511;
3605: #else
3606: env->idt.limit = 255;
3607: #endif
3608: env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1),
3609: PROT_READ|PROT_WRITE,
3610: MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3611: idt_table = g2h(env->idt.base);
1.1 root 3612: set_idt(0, 0);
3613: set_idt(1, 0);
3614: set_idt(2, 0);
3615: set_idt(3, 3);
3616: set_idt(4, 3);
1.1.1.7 root 3617: set_idt(5, 0);
1.1 root 3618: set_idt(6, 0);
3619: set_idt(7, 0);
3620: set_idt(8, 0);
3621: set_idt(9, 0);
3622: set_idt(10, 0);
3623: set_idt(11, 0);
3624: set_idt(12, 0);
3625: set_idt(13, 0);
3626: set_idt(14, 0);
3627: set_idt(15, 0);
3628: set_idt(16, 0);
3629: set_idt(17, 0);
3630: set_idt(18, 0);
3631: set_idt(19, 0);
3632: set_idt(0x80, 3);
3633:
3634: /* linux segment setup */
1.1.1.6 root 3635: {
3636: uint64_t *gdt_table;
1.1.1.7 root 3637: env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES,
3638: PROT_READ|PROT_WRITE,
3639: MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
1.1.1.6 root 3640: env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1;
1.1.1.7 root 3641: gdt_table = g2h(env->gdt.base);
1.1.1.6 root 3642: #ifdef TARGET_ABI32
3643: write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
3644: DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3645: (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
3646: #else
3647: /* 64 bit code segment */
3648: write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
3649: DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3650: DESC_L_MASK |
3651: (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
3652: #endif
3653: write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
3654: DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3655: (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
3656: }
1.1 root 3657: cpu_x86_load_seg(env, R_CS, __USER_CS);
1.1.1.6 root 3658: cpu_x86_load_seg(env, R_SS, __USER_DS);
3659: #ifdef TARGET_ABI32
1.1 root 3660: cpu_x86_load_seg(env, R_DS, __USER_DS);
3661: cpu_x86_load_seg(env, R_ES, __USER_DS);
3662: cpu_x86_load_seg(env, R_FS, __USER_DS);
3663: cpu_x86_load_seg(env, R_GS, __USER_DS);
1.1.1.6 root 3664: /* This hack makes Wine work... */
3665: env->segs[R_FS].selector = 0;
3666: #else
3667: cpu_x86_load_seg(env, R_DS, 0);
3668: cpu_x86_load_seg(env, R_ES, 0);
3669: cpu_x86_load_seg(env, R_FS, 0);
3670: cpu_x86_load_seg(env, R_GS, 0);
3671: #endif
1.1 root 3672: #elif defined(TARGET_ARM)
3673: {
3674: int i;
1.1.1.2 root 3675: cpsr_write(env, regs->uregs[16], 0xffffffff);
1.1 root 3676: for(i = 0; i < 16; i++) {
3677: env->regs[i] = regs->uregs[i];
3678: }
1.1.1.15! root 3679: /* Enable BE8. */
! 3680: if (EF_ARM_EABI_VERSION(info->elf_flags) >= EF_ARM_EABI_VER4
! 3681: && (info->elf_flags & EF_ARM_BE8)) {
! 3682: env->bswap_code = 1;
! 3683: }
1.1 root 3684: }
1.1.1.13 root 3685: #elif defined(TARGET_UNICORE32)
3686: {
3687: int i;
3688: cpu_asr_write(env, regs->uregs[32], 0xffffffff);
3689: for (i = 0; i < 32; i++) {
3690: env->regs[i] = regs->uregs[i];
3691: }
3692: }
1.1 root 3693: #elif defined(TARGET_SPARC)
3694: {
3695: int i;
3696: env->pc = regs->pc;
3697: env->npc = regs->npc;
3698: env->y = regs->y;
3699: for(i = 0; i < 8; i++)
3700: env->gregs[i] = regs->u_regs[i];
3701: for(i = 0; i < 8; i++)
3702: env->regwptr[i] = regs->u_regs[i + 8];
3703: }
3704: #elif defined(TARGET_PPC)
3705: {
3706: int i;
3707:
1.1.1.6 root 3708: #if defined(TARGET_PPC64)
3709: #if defined(TARGET_ABI32)
3710: env->msr &= ~((target_ulong)1 << MSR_SF);
3711: #else
3712: env->msr |= (target_ulong)1 << MSR_SF;
3713: #endif
3714: #endif
1.1 root 3715: env->nip = regs->nip;
3716: for(i = 0; i < 32; i++) {
3717: env->gpr[i] = regs->gpr[i];
3718: }
3719: }
1.1.1.5 root 3720: #elif defined(TARGET_M68K)
3721: {
3722: env->pc = regs->pc;
3723: env->dregs[0] = regs->d0;
3724: env->dregs[1] = regs->d1;
3725: env->dregs[2] = regs->d2;
3726: env->dregs[3] = regs->d3;
3727: env->dregs[4] = regs->d4;
3728: env->dregs[5] = regs->d5;
3729: env->dregs[6] = regs->d6;
3730: env->dregs[7] = regs->d7;
3731: env->aregs[0] = regs->a0;
3732: env->aregs[1] = regs->a1;
3733: env->aregs[2] = regs->a2;
3734: env->aregs[3] = regs->a3;
3735: env->aregs[4] = regs->a4;
3736: env->aregs[5] = regs->a5;
3737: env->aregs[6] = regs->a6;
3738: env->aregs[7] = regs->usp;
3739: env->sr = regs->sr;
3740: ts->sim_syscalls = 1;
3741: }
1.1.1.8 root 3742: #elif defined(TARGET_MICROBLAZE)
3743: {
3744: env->regs[0] = regs->r0;
3745: env->regs[1] = regs->r1;
3746: env->regs[2] = regs->r2;
3747: env->regs[3] = regs->r3;
3748: env->regs[4] = regs->r4;
3749: env->regs[5] = regs->r5;
3750: env->regs[6] = regs->r6;
3751: env->regs[7] = regs->r7;
3752: env->regs[8] = regs->r8;
3753: env->regs[9] = regs->r9;
3754: env->regs[10] = regs->r10;
3755: env->regs[11] = regs->r11;
3756: env->regs[12] = regs->r12;
3757: env->regs[13] = regs->r13;
3758: env->regs[14] = regs->r14;
3759: env->regs[15] = regs->r15;
3760: env->regs[16] = regs->r16;
3761: env->regs[17] = regs->r17;
3762: env->regs[18] = regs->r18;
3763: env->regs[19] = regs->r19;
3764: env->regs[20] = regs->r20;
3765: env->regs[21] = regs->r21;
3766: env->regs[22] = regs->r22;
3767: env->regs[23] = regs->r23;
3768: env->regs[24] = regs->r24;
3769: env->regs[25] = regs->r25;
3770: env->regs[26] = regs->r26;
3771: env->regs[27] = regs->r27;
3772: env->regs[28] = regs->r28;
3773: env->regs[29] = regs->r29;
3774: env->regs[30] = regs->r30;
3775: env->regs[31] = regs->r31;
3776: env->sregs[SR_PC] = regs->pc;
3777: }
1.1.1.2 root 3778: #elif defined(TARGET_MIPS)
3779: {
3780: int i;
3781:
3782: for(i = 0; i < 32; i++) {
1.1.1.7 root 3783: env->active_tc.gpr[i] = regs->regs[i];
1.1.1.2 root 3784: }
1.1.1.11 root 3785: env->active_tc.PC = regs->cp0_epc & ~(target_ulong)1;
3786: if (regs->cp0_epc & 1) {
3787: env->hflags |= MIPS_HFLAG_M16;
3788: }
1.1.1.2 root 3789: }
1.1.1.3 root 3790: #elif defined(TARGET_SH4)
3791: {
3792: int i;
3793:
3794: for(i = 0; i < 16; i++) {
3795: env->gregs[i] = regs->regs[i];
3796: }
3797: env->pc = regs->pc;
3798: }
1.1.1.6 root 3799: #elif defined(TARGET_ALPHA)
3800: {
3801: int i;
3802:
3803: for(i = 0; i < 28; i++) {
3804: env->ir[i] = ((abi_ulong *)regs)[i];
3805: }
1.1.1.11 root 3806: env->ir[IR_SP] = regs->usp;
1.1.1.6 root 3807: env->pc = regs->pc;
3808: }
3809: #elif defined(TARGET_CRIS)
3810: {
3811: env->regs[0] = regs->r0;
3812: env->regs[1] = regs->r1;
3813: env->regs[2] = regs->r2;
3814: env->regs[3] = regs->r3;
3815: env->regs[4] = regs->r4;
3816: env->regs[5] = regs->r5;
3817: env->regs[6] = regs->r6;
3818: env->regs[7] = regs->r7;
3819: env->regs[8] = regs->r8;
3820: env->regs[9] = regs->r9;
3821: env->regs[10] = regs->r10;
3822: env->regs[11] = regs->r11;
3823: env->regs[12] = regs->r12;
3824: env->regs[13] = regs->r13;
3825: env->regs[14] = info->start_stack;
3826: env->regs[15] = regs->acr;
3827: env->pc = regs->erp;
3828: }
1.1.1.13 root 3829: #elif defined(TARGET_S390X)
3830: {
3831: int i;
3832: for (i = 0; i < 16; i++) {
3833: env->regs[i] = regs->gprs[i];
3834: }
3835: env->psw.mask = regs->psw.mask;
3836: env->psw.addr = regs->psw.addr;
3837: }
1.1 root 3838: #else
3839: #error unsupported target CPU
3840: #endif
3841:
1.1.1.13 root 3842: #if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
1.1.1.6 root 3843: ts->stack_base = info->start_stack;
3844: ts->heap_base = info->brk;
3845: /* This will be filled in on the first SYS_HEAPINFO call. */
3846: ts->heap_limit = 0;
3847: #endif
3848:
1.1.1.2 root 3849: if (gdbstub_port) {
1.1.1.14 root 3850: if (gdbserver_start(gdbstub_port) < 0) {
3851: fprintf(stderr, "qemu: could not open gdbserver on port %d\n",
3852: gdbstub_port);
3853: exit(1);
3854: }
1.1 root 3855: gdb_handlesig(env, 0);
3856: }
3857: cpu_loop(env);
3858: /* never exits */
3859: return 0;
3860: }
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