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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"
32: /* For tb_lock */
33: #include "exec-all.h"
1.1.1.11! root 34: #include "tcg.h"
! 35: #include "qemu-timer.h"
1.1.1.7 root 36: #include "envlist.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;
1.1.1.9 root 43: unsigned long mmap_min_addr;
1.1.1.11! root 44: #if defined(CONFIG_USE_GUEST_BASE)
1.1.1.9 root 45: unsigned long guest_base;
46: int have_guest_base;
1.1.1.11! root 47: unsigned long reserved_va;
1.1.1.9 root 48: #endif
1.1.1.8 root 49:
1.1.1.11! root 50: static const char *interp_prefix = CONFIG_QEMU_INTERP_PREFIX;
1.1.1.4 root 51: const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
1.1 root 52:
53: /* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
54: we allocate a bigger stack. Need a better solution, for example
55: by remapping the process stack directly at the right place */
1.1.1.11! root 56: unsigned long guest_stack_size = 8 * 1024 * 1024UL;
1.1 root 57:
58: void gemu_log(const char *fmt, ...)
59: {
60: va_list ap;
61:
62: va_start(ap, fmt);
63: vfprintf(stderr, fmt, ap);
64: va_end(ap);
65: }
66:
1.1.1.7 root 67: #if defined(TARGET_I386)
1.1 root 68: int cpu_get_pic_interrupt(CPUState *env)
69: {
70: return -1;
71: }
1.1.1.7 root 72: #endif
1.1 root 73:
74: /* timers for rdtsc */
75:
1.1.1.4 root 76: #if 0
1.1 root 77:
78: static uint64_t emu_time;
79:
80: int64_t cpu_get_real_ticks(void)
81: {
82: return emu_time++;
83: }
84:
85: #endif
86:
1.1.1.9 root 87: #if defined(CONFIG_USE_NPTL)
1.1.1.7 root 88: /***********************************************************/
89: /* Helper routines for implementing atomic operations. */
90:
91: /* To implement exclusive operations we force all cpus to syncronise.
92: We don't require a full sync, only that no cpus are executing guest code.
93: The alternative is to map target atomic ops onto host equivalents,
94: which requires quite a lot of per host/target work. */
1.1.1.8 root 95: static pthread_mutex_t cpu_list_mutex = PTHREAD_MUTEX_INITIALIZER;
1.1.1.7 root 96: static pthread_mutex_t exclusive_lock = PTHREAD_MUTEX_INITIALIZER;
97: static pthread_cond_t exclusive_cond = PTHREAD_COND_INITIALIZER;
98: static pthread_cond_t exclusive_resume = PTHREAD_COND_INITIALIZER;
99: static int pending_cpus;
100:
101: /* Make sure everything is in a consistent state for calling fork(). */
102: void fork_start(void)
103: {
104: pthread_mutex_lock(&tb_lock);
105: pthread_mutex_lock(&exclusive_lock);
1.1.1.11! root 106: mmap_fork_start();
1.1.1.7 root 107: }
108:
109: void fork_end(int child)
110: {
1.1.1.11! root 111: mmap_fork_end(child);
1.1.1.7 root 112: if (child) {
113: /* Child processes created by fork() only have a single thread.
114: Discard information about the parent threads. */
115: first_cpu = thread_env;
116: thread_env->next_cpu = NULL;
117: pending_cpus = 0;
118: pthread_mutex_init(&exclusive_lock, NULL);
1.1.1.8 root 119: pthread_mutex_init(&cpu_list_mutex, NULL);
1.1.1.7 root 120: pthread_cond_init(&exclusive_cond, NULL);
121: pthread_cond_init(&exclusive_resume, NULL);
122: pthread_mutex_init(&tb_lock, NULL);
123: gdbserver_fork(thread_env);
124: } else {
125: pthread_mutex_unlock(&exclusive_lock);
126: pthread_mutex_unlock(&tb_lock);
127: }
128: }
129:
130: /* Wait for pending exclusive operations to complete. The exclusive lock
131: must be held. */
132: static inline void exclusive_idle(void)
133: {
134: while (pending_cpus) {
135: pthread_cond_wait(&exclusive_resume, &exclusive_lock);
136: }
137: }
138:
139: /* Start an exclusive operation.
140: Must only be called from outside cpu_arm_exec. */
141: static inline void start_exclusive(void)
142: {
143: CPUState *other;
144: pthread_mutex_lock(&exclusive_lock);
145: exclusive_idle();
146:
147: pending_cpus = 1;
148: /* Make all other cpus stop executing. */
149: for (other = first_cpu; other; other = other->next_cpu) {
150: if (other->running) {
151: pending_cpus++;
1.1.1.8 root 152: cpu_exit(other);
1.1.1.7 root 153: }
154: }
155: if (pending_cpus > 1) {
156: pthread_cond_wait(&exclusive_cond, &exclusive_lock);
157: }
158: }
159:
160: /* Finish an exclusive operation. */
161: static inline void end_exclusive(void)
162: {
163: pending_cpus = 0;
164: pthread_cond_broadcast(&exclusive_resume);
165: pthread_mutex_unlock(&exclusive_lock);
166: }
167:
168: /* Wait for exclusive ops to finish, and begin cpu execution. */
169: static inline void cpu_exec_start(CPUState *env)
170: {
171: pthread_mutex_lock(&exclusive_lock);
172: exclusive_idle();
173: env->running = 1;
174: pthread_mutex_unlock(&exclusive_lock);
175: }
176:
177: /* Mark cpu as not executing, and release pending exclusive ops. */
178: static inline void cpu_exec_end(CPUState *env)
179: {
180: pthread_mutex_lock(&exclusive_lock);
181: env->running = 0;
182: if (pending_cpus > 1) {
183: pending_cpus--;
184: if (pending_cpus == 1) {
185: pthread_cond_signal(&exclusive_cond);
186: }
187: }
188: exclusive_idle();
189: pthread_mutex_unlock(&exclusive_lock);
190: }
1.1.1.8 root 191:
192: void cpu_list_lock(void)
193: {
194: pthread_mutex_lock(&cpu_list_mutex);
195: }
196:
197: void cpu_list_unlock(void)
198: {
199: pthread_mutex_unlock(&cpu_list_mutex);
200: }
1.1.1.9 root 201: #else /* if !CONFIG_USE_NPTL */
1.1.1.7 root 202: /* These are no-ops because we are not threadsafe. */
203: static inline void cpu_exec_start(CPUState *env)
204: {
205: }
206:
207: static inline void cpu_exec_end(CPUState *env)
208: {
209: }
210:
211: static inline void start_exclusive(void)
212: {
213: }
214:
215: static inline void end_exclusive(void)
216: {
217: }
218:
219: void fork_start(void)
220: {
221: }
222:
223: void fork_end(int child)
224: {
225: if (child) {
226: gdbserver_fork(thread_env);
227: }
228: }
1.1.1.8 root 229:
230: void cpu_list_lock(void)
231: {
232: }
233:
234: void cpu_list_unlock(void)
235: {
236: }
1.1.1.7 root 237: #endif
238:
239:
1.1 root 240: #ifdef TARGET_I386
241: /***********************************************************/
242: /* CPUX86 core interface */
243:
1.1.1.5 root 244: void cpu_smm_update(CPUState *env)
245: {
246: }
247:
1.1 root 248: uint64_t cpu_get_tsc(CPUX86State *env)
249: {
250: return cpu_get_real_ticks();
251: }
252:
1.1.1.6 root 253: static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
1.1 root 254: int flags)
255: {
256: unsigned int e1, e2;
1.1.1.3 root 257: uint32_t *p;
1.1 root 258: e1 = (addr << 16) | (limit & 0xffff);
259: e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
260: e2 |= flags;
1.1.1.3 root 261: p = ptr;
1.1.1.7 root 262: p[0] = tswap32(e1);
263: p[1] = tswap32(e2);
1.1 root 264: }
265:
1.1.1.7 root 266: static uint64_t *idt_table;
267: #ifdef TARGET_X86_64
1.1.1.6 root 268: static void set_gate64(void *ptr, unsigned int type, unsigned int dpl,
269: uint64_t addr, unsigned int sel)
1.1 root 270: {
1.1.1.6 root 271: uint32_t *p, e1, e2;
1.1 root 272: e1 = (addr & 0xffff) | (sel << 16);
273: e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
1.1.1.3 root 274: p = ptr;
1.1.1.6 root 275: p[0] = tswap32(e1);
276: p[1] = tswap32(e2);
277: p[2] = tswap32(addr >> 32);
278: p[3] = 0;
1.1 root 279: }
1.1.1.6 root 280: /* only dpl matters as we do only user space emulation */
281: static void set_idt(int n, unsigned int dpl)
282: {
283: set_gate64(idt_table + n * 2, 0, dpl, 0, 0);
284: }
285: #else
286: static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
287: uint32_t addr, unsigned int sel)
288: {
289: uint32_t *p, e1, e2;
290: e1 = (addr & 0xffff) | (sel << 16);
291: e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
292: p = ptr;
293: p[0] = tswap32(e1);
294: p[1] = tswap32(e2);
295: }
296:
1.1 root 297: /* only dpl matters as we do only user space emulation */
298: static void set_idt(int n, unsigned int dpl)
299: {
300: set_gate(idt_table + n, 0, dpl, 0, 0);
301: }
1.1.1.6 root 302: #endif
1.1 root 303:
304: void cpu_loop(CPUX86State *env)
305: {
306: int trapnr;
1.1.1.6 root 307: abi_ulong pc;
1.1 root 308: target_siginfo_t info;
309:
310: for(;;) {
311: trapnr = cpu_x86_exec(env);
312: switch(trapnr) {
313: case 0x80:
1.1.1.6 root 314: /* linux syscall from int $0x80 */
315: env->regs[R_EAX] = do_syscall(env,
316: env->regs[R_EAX],
1.1 root 317: env->regs[R_EBX],
318: env->regs[R_ECX],
319: env->regs[R_EDX],
320: env->regs[R_ESI],
321: env->regs[R_EDI],
322: env->regs[R_EBP]);
323: break;
1.1.1.6 root 324: #ifndef TARGET_ABI32
325: case EXCP_SYSCALL:
326: /* linux syscall from syscall intruction */
327: env->regs[R_EAX] = do_syscall(env,
328: env->regs[R_EAX],
329: env->regs[R_EDI],
330: env->regs[R_ESI],
331: env->regs[R_EDX],
332: env->regs[10],
333: env->regs[8],
334: env->regs[9]);
335: env->eip = env->exception_next_eip;
336: break;
337: #endif
1.1 root 338: case EXCP0B_NOSEG:
339: case EXCP0C_STACK:
340: info.si_signo = SIGBUS;
341: info.si_errno = 0;
342: info.si_code = TARGET_SI_KERNEL;
343: info._sifields._sigfault._addr = 0;
1.1.1.7 root 344: queue_signal(env, info.si_signo, &info);
1.1 root 345: break;
346: case EXCP0D_GPF:
1.1.1.6 root 347: /* XXX: potential problem if ABI32 */
348: #ifndef TARGET_X86_64
1.1 root 349: if (env->eflags & VM_MASK) {
350: handle_vm86_fault(env);
1.1.1.6 root 351: } else
352: #endif
353: {
1.1 root 354: info.si_signo = SIGSEGV;
355: info.si_errno = 0;
356: info.si_code = TARGET_SI_KERNEL;
357: info._sifields._sigfault._addr = 0;
1.1.1.7 root 358: queue_signal(env, info.si_signo, &info);
1.1 root 359: }
360: break;
361: case EXCP0E_PAGE:
362: info.si_signo = SIGSEGV;
363: info.si_errno = 0;
364: if (!(env->error_code & 1))
365: info.si_code = TARGET_SEGV_MAPERR;
366: else
367: info.si_code = TARGET_SEGV_ACCERR;
368: info._sifields._sigfault._addr = env->cr[2];
1.1.1.7 root 369: queue_signal(env, info.si_signo, &info);
1.1 root 370: break;
371: case EXCP00_DIVZ:
1.1.1.6 root 372: #ifndef TARGET_X86_64
1.1 root 373: if (env->eflags & VM_MASK) {
374: handle_vm86_trap(env, trapnr);
1.1.1.6 root 375: } else
376: #endif
377: {
1.1 root 378: /* division by zero */
379: info.si_signo = SIGFPE;
380: info.si_errno = 0;
381: info.si_code = TARGET_FPE_INTDIV;
382: info._sifields._sigfault._addr = env->eip;
1.1.1.7 root 383: queue_signal(env, info.si_signo, &info);
1.1 root 384: }
385: break;
1.1.1.7 root 386: case EXCP01_DB:
1.1 root 387: case EXCP03_INT3:
1.1.1.6 root 388: #ifndef TARGET_X86_64
1.1 root 389: if (env->eflags & VM_MASK) {
390: handle_vm86_trap(env, trapnr);
1.1.1.6 root 391: } else
392: #endif
393: {
1.1 root 394: info.si_signo = SIGTRAP;
395: info.si_errno = 0;
1.1.1.7 root 396: if (trapnr == EXCP01_DB) {
1.1 root 397: info.si_code = TARGET_TRAP_BRKPT;
398: info._sifields._sigfault._addr = env->eip;
399: } else {
400: info.si_code = TARGET_SI_KERNEL;
401: info._sifields._sigfault._addr = 0;
402: }
1.1.1.7 root 403: queue_signal(env, info.si_signo, &info);
1.1 root 404: }
405: break;
406: case EXCP04_INTO:
407: case EXCP05_BOUND:
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 = SIGSEGV;
415: info.si_errno = 0;
416: info.si_code = TARGET_SI_KERNEL;
417: info._sifields._sigfault._addr = 0;
1.1.1.7 root 418: queue_signal(env, info.si_signo, &info);
1.1 root 419: }
420: break;
421: case EXCP06_ILLOP:
422: info.si_signo = SIGILL;
423: info.si_errno = 0;
424: info.si_code = TARGET_ILL_ILLOPN;
425: info._sifields._sigfault._addr = env->eip;
1.1.1.7 root 426: queue_signal(env, info.si_signo, &info);
1.1 root 427: break;
428: case EXCP_INTERRUPT:
429: /* just indicate that signals should be handled asap */
430: break;
431: case EXCP_DEBUG:
432: {
433: int sig;
434:
435: sig = gdb_handlesig (env, TARGET_SIGTRAP);
436: if (sig)
437: {
438: info.si_signo = sig;
439: info.si_errno = 0;
440: info.si_code = TARGET_TRAP_BRKPT;
1.1.1.7 root 441: queue_signal(env, info.si_signo, &info);
1.1 root 442: }
443: }
444: break;
445: default:
446: pc = env->segs[R_CS].base + env->eip;
1.1.1.6 root 447: fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
1.1 root 448: (long)pc, trapnr);
449: abort();
450: }
451: process_pending_signals(env);
452: }
453: }
454: #endif
455:
456: #ifdef TARGET_ARM
457:
1.1.1.6 root 458: static void arm_cache_flush(abi_ulong start, abi_ulong last)
1.1 root 459: {
1.1.1.6 root 460: abi_ulong addr, last1;
1.1 root 461:
462: if (last < start)
463: return;
464: addr = start;
465: for(;;) {
466: last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
467: if (last1 > last)
468: last1 = last;
469: tb_invalidate_page_range(addr, last1 + 1);
470: if (last1 == last)
471: break;
472: addr = last1 + 1;
473: }
474: }
475:
1.1.1.7 root 476: /* Handle a jump to the kernel code page. */
477: static int
478: do_kernel_trap(CPUARMState *env)
479: {
480: uint32_t addr;
481: uint32_t cpsr;
482: uint32_t val;
483:
484: switch (env->regs[15]) {
485: case 0xffff0fa0: /* __kernel_memory_barrier */
486: /* ??? No-op. Will need to do better for SMP. */
487: break;
488: case 0xffff0fc0: /* __kernel_cmpxchg */
489: /* XXX: This only works between threads, not between processes.
490: It's probably possible to implement this with native host
491: operations. However things like ldrex/strex are much harder so
492: there's not much point trying. */
493: start_exclusive();
494: cpsr = cpsr_read(env);
495: addr = env->regs[2];
496: /* FIXME: This should SEGV if the access fails. */
497: if (get_user_u32(val, addr))
498: val = ~env->regs[0];
499: if (val == env->regs[0]) {
500: val = env->regs[1];
501: /* FIXME: Check for segfaults. */
502: put_user_u32(val, addr);
503: env->regs[0] = 0;
504: cpsr |= CPSR_C;
505: } else {
506: env->regs[0] = -1;
507: cpsr &= ~CPSR_C;
508: }
509: cpsr_write(env, cpsr, CPSR_C);
510: end_exclusive();
511: break;
512: case 0xffff0fe0: /* __kernel_get_tls */
513: env->regs[0] = env->cp15.c13_tls2;
514: break;
515: default:
516: return 1;
517: }
518: /* Jump back to the caller. */
519: addr = env->regs[14];
520: if (addr & 1) {
521: env->thumb = 1;
522: addr &= ~1;
523: }
524: env->regs[15] = addr;
525:
526: return 0;
527: }
528:
1.1.1.9 root 529: static int do_strex(CPUARMState *env)
530: {
531: uint32_t val;
532: int size;
533: int rc = 1;
534: int segv = 0;
535: uint32_t addr;
536: start_exclusive();
537: addr = env->exclusive_addr;
538: if (addr != env->exclusive_test) {
539: goto fail;
540: }
541: size = env->exclusive_info & 0xf;
542: switch (size) {
543: case 0:
544: segv = get_user_u8(val, addr);
545: break;
546: case 1:
547: segv = get_user_u16(val, addr);
548: break;
549: case 2:
550: case 3:
551: segv = get_user_u32(val, addr);
552: break;
1.1.1.11! root 553: default:
! 554: abort();
1.1.1.9 root 555: }
556: if (segv) {
557: env->cp15.c6_data = addr;
558: goto done;
559: }
560: if (val != env->exclusive_val) {
561: goto fail;
562: }
563: if (size == 3) {
564: segv = get_user_u32(val, addr + 4);
565: if (segv) {
566: env->cp15.c6_data = addr + 4;
567: goto done;
568: }
569: if (val != env->exclusive_high) {
570: goto fail;
571: }
572: }
573: val = env->regs[(env->exclusive_info >> 8) & 0xf];
574: switch (size) {
575: case 0:
576: segv = put_user_u8(val, addr);
577: break;
578: case 1:
579: segv = put_user_u16(val, addr);
580: break;
581: case 2:
582: case 3:
583: segv = put_user_u32(val, addr);
584: break;
585: }
586: if (segv) {
587: env->cp15.c6_data = addr;
588: goto done;
589: }
590: if (size == 3) {
591: val = env->regs[(env->exclusive_info >> 12) & 0xf];
592: segv = put_user_u32(val, addr);
593: if (segv) {
594: env->cp15.c6_data = addr + 4;
595: goto done;
596: }
597: }
598: rc = 0;
599: fail:
600: env->regs[15] += 4;
601: env->regs[(env->exclusive_info >> 4) & 0xf] = rc;
602: done:
603: end_exclusive();
604: return segv;
605: }
606:
1.1 root 607: void cpu_loop(CPUARMState *env)
608: {
609: int trapnr;
610: unsigned int n, insn;
611: target_siginfo_t info;
1.1.1.2 root 612: uint32_t addr;
1.1.1.6 root 613:
1.1 root 614: for(;;) {
1.1.1.7 root 615: cpu_exec_start(env);
1.1 root 616: trapnr = cpu_arm_exec(env);
1.1.1.7 root 617: cpu_exec_end(env);
1.1 root 618: switch(trapnr) {
619: case EXCP_UDEF:
620: {
621: TaskState *ts = env->opaque;
622: uint32_t opcode;
1.1.1.7 root 623: int rc;
1.1 root 624:
625: /* we handle the FPU emulation here, as Linux */
626: /* we get the opcode */
1.1.1.6 root 627: /* FIXME - what to do if get_user() fails? */
628: get_user_u32(opcode, env->regs[15]);
629:
1.1.1.7 root 630: rc = EmulateAll(opcode, &ts->fpa, env);
631: if (rc == 0) { /* illegal instruction */
1.1 root 632: info.si_signo = SIGILL;
633: info.si_errno = 0;
634: info.si_code = TARGET_ILL_ILLOPN;
635: info._sifields._sigfault._addr = env->regs[15];
1.1.1.7 root 636: queue_signal(env, info.si_signo, &info);
637: } else if (rc < 0) { /* FP exception */
638: int arm_fpe=0;
639:
640: /* translate softfloat flags to FPSR flags */
641: if (-rc & float_flag_invalid)
642: arm_fpe |= BIT_IOC;
643: if (-rc & float_flag_divbyzero)
644: arm_fpe |= BIT_DZC;
645: if (-rc & float_flag_overflow)
646: arm_fpe |= BIT_OFC;
647: if (-rc & float_flag_underflow)
648: arm_fpe |= BIT_UFC;
649: if (-rc & float_flag_inexact)
650: arm_fpe |= BIT_IXC;
651:
652: FPSR fpsr = ts->fpa.fpsr;
653: //printf("fpsr 0x%x, arm_fpe 0x%x\n",fpsr,arm_fpe);
654:
655: if (fpsr & (arm_fpe << 16)) { /* exception enabled? */
656: info.si_signo = SIGFPE;
657: info.si_errno = 0;
658:
659: /* ordered by priority, least first */
660: if (arm_fpe & BIT_IXC) info.si_code = TARGET_FPE_FLTRES;
661: if (arm_fpe & BIT_UFC) info.si_code = TARGET_FPE_FLTUND;
662: if (arm_fpe & BIT_OFC) info.si_code = TARGET_FPE_FLTOVF;
663: if (arm_fpe & BIT_DZC) info.si_code = TARGET_FPE_FLTDIV;
664: if (arm_fpe & BIT_IOC) info.si_code = TARGET_FPE_FLTINV;
665:
666: info._sifields._sigfault._addr = env->regs[15];
667: queue_signal(env, info.si_signo, &info);
668: } else {
669: env->regs[15] += 4;
670: }
671:
672: /* accumulate unenabled exceptions */
673: if ((!(fpsr & BIT_IXE)) && (arm_fpe & BIT_IXC))
674: fpsr |= BIT_IXC;
675: if ((!(fpsr & BIT_UFE)) && (arm_fpe & BIT_UFC))
676: fpsr |= BIT_UFC;
677: if ((!(fpsr & BIT_OFE)) && (arm_fpe & BIT_OFC))
678: fpsr |= BIT_OFC;
679: if ((!(fpsr & BIT_DZE)) && (arm_fpe & BIT_DZC))
680: fpsr |= BIT_DZC;
681: if ((!(fpsr & BIT_IOE)) && (arm_fpe & BIT_IOC))
682: fpsr |= BIT_IOC;
683: ts->fpa.fpsr=fpsr;
684: } else { /* everything OK */
1.1 root 685: /* increment PC */
686: env->regs[15] += 4;
687: }
688: }
689: break;
690: case EXCP_SWI:
1.1.1.3 root 691: case EXCP_BKPT:
1.1 root 692: {
1.1.1.3 root 693: env->eabi = 1;
1.1 root 694: /* system call */
1.1.1.3 root 695: if (trapnr == EXCP_BKPT) {
696: if (env->thumb) {
1.1.1.6 root 697: /* FIXME - what to do if get_user() fails? */
698: get_user_u16(insn, env->regs[15]);
1.1.1.3 root 699: n = insn & 0xff;
700: env->regs[15] += 2;
701: } else {
1.1.1.6 root 702: /* FIXME - what to do if get_user() fails? */
703: get_user_u32(insn, env->regs[15]);
1.1.1.3 root 704: n = (insn & 0xf) | ((insn >> 4) & 0xff0);
705: env->regs[15] += 4;
706: }
1.1 root 707: } else {
1.1.1.3 root 708: if (env->thumb) {
1.1.1.6 root 709: /* FIXME - what to do if get_user() fails? */
710: get_user_u16(insn, env->regs[15] - 2);
1.1.1.3 root 711: n = insn & 0xff;
712: } else {
1.1.1.6 root 713: /* FIXME - what to do if get_user() fails? */
714: get_user_u32(insn, env->regs[15] - 4);
1.1.1.3 root 715: n = insn & 0xffffff;
716: }
1.1 root 717: }
718:
719: if (n == ARM_NR_cacheflush) {
720: arm_cache_flush(env->regs[0], env->regs[1]);
721: } else if (n == ARM_NR_semihosting
722: || n == ARM_NR_thumb_semihosting) {
723: env->regs[0] = do_arm_semihosting (env);
1.1.1.3 root 724: } else if (n == 0 || n >= ARM_SYSCALL_BASE
1.1 root 725: || (env->thumb && n == ARM_THUMB_SYSCALL)) {
726: /* linux syscall */
1.1.1.3 root 727: if (env->thumb || n == 0) {
1.1 root 728: n = env->regs[7];
729: } else {
730: n -= ARM_SYSCALL_BASE;
1.1.1.3 root 731: env->eabi = 0;
1.1 root 732: }
1.1.1.7 root 733: if ( n > ARM_NR_BASE) {
734: switch (n) {
735: case ARM_NR_cacheflush:
736: arm_cache_flush(env->regs[0], env->regs[1]);
737: break;
738: case ARM_NR_set_tls:
739: cpu_set_tls(env, env->regs[0]);
740: env->regs[0] = 0;
741: break;
742: default:
743: gemu_log("qemu: Unsupported ARM syscall: 0x%x\n",
744: n);
745: env->regs[0] = -TARGET_ENOSYS;
746: break;
747: }
748: } else {
749: env->regs[0] = do_syscall(env,
750: n,
751: env->regs[0],
752: env->regs[1],
753: env->regs[2],
754: env->regs[3],
755: env->regs[4],
756: env->regs[5]);
757: }
1.1 root 758: } else {
759: goto error;
760: }
761: }
762: break;
763: case EXCP_INTERRUPT:
764: /* just indicate that signals should be handled asap */
765: break;
766: case EXCP_PREFETCH_ABORT:
1.1.1.7 root 767: addr = env->cp15.c6_insn;
1.1.1.2 root 768: goto do_segv;
1.1 root 769: case EXCP_DATA_ABORT:
1.1.1.7 root 770: addr = env->cp15.c6_data;
1.1.1.2 root 771: goto do_segv;
772: do_segv:
1.1 root 773: {
774: info.si_signo = SIGSEGV;
775: info.si_errno = 0;
776: /* XXX: check env->error_code */
777: info.si_code = TARGET_SEGV_MAPERR;
1.1.1.2 root 778: info._sifields._sigfault._addr = addr;
1.1.1.7 root 779: queue_signal(env, info.si_signo, &info);
1.1 root 780: }
781: break;
782: case EXCP_DEBUG:
783: {
784: int sig;
785:
786: sig = gdb_handlesig (env, TARGET_SIGTRAP);
787: if (sig)
788: {
789: info.si_signo = sig;
790: info.si_errno = 0;
791: info.si_code = TARGET_TRAP_BRKPT;
1.1.1.7 root 792: queue_signal(env, info.si_signo, &info);
1.1 root 793: }
794: }
795: break;
1.1.1.7 root 796: case EXCP_KERNEL_TRAP:
797: if (do_kernel_trap(env))
798: goto error;
799: break;
1.1.1.9 root 800: case EXCP_STREX:
801: if (do_strex(env)) {
802: addr = env->cp15.c6_data;
803: goto do_segv;
804: }
805: break;
1.1 root 806: default:
807: error:
1.1.1.6 root 808: fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1.1 root 809: trapnr);
810: cpu_dump_state(env, stderr, fprintf, 0);
811: abort();
812: }
813: process_pending_signals(env);
814: }
815: }
816:
817: #endif
818:
819: #ifdef TARGET_SPARC
1.1.1.7 root 820: #define SPARC64_STACK_BIAS 2047
1.1 root 821:
822: //#define DEBUG_WIN
823:
824: /* WARNING: dealing with register windows _is_ complicated. More info
825: can be found at http://www.sics.se/~psm/sparcstack.html */
826: static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
827: {
1.1.1.7 root 828: index = (index + cwp * 16) % (16 * env->nwindows);
1.1 root 829: /* wrap handling : if cwp is on the last window, then we use the
830: registers 'after' the end */
1.1.1.7 root 831: if (index < 8 && env->cwp == env->nwindows - 1)
832: index += 16 * env->nwindows;
1.1 root 833: return index;
834: }
835:
836: /* save the register window 'cwp1' */
837: static inline void save_window_offset(CPUSPARCState *env, int cwp1)
838: {
839: unsigned int i;
1.1.1.6 root 840: abi_ulong sp_ptr;
841:
1.1.1.3 root 842: sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
1.1.1.7 root 843: #ifdef TARGET_SPARC64
844: if (sp_ptr & 3)
845: sp_ptr += SPARC64_STACK_BIAS;
846: #endif
1.1 root 847: #if defined(DEBUG_WIN)
1.1.1.7 root 848: printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n",
849: sp_ptr, cwp1);
1.1 root 850: #endif
851: for(i = 0; i < 16; i++) {
1.1.1.6 root 852: /* FIXME - what to do if put_user() fails? */
853: put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
854: sp_ptr += sizeof(abi_ulong);
1.1 root 855: }
856: }
857:
858: static void save_window(CPUSPARCState *env)
859: {
1.1.1.4 root 860: #ifndef TARGET_SPARC64
1.1 root 861: unsigned int new_wim;
1.1.1.7 root 862: new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) &
863: ((1LL << env->nwindows) - 1);
864: save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
1.1 root 865: env->wim = new_wim;
1.1.1.4 root 866: #else
1.1.1.7 root 867: save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
1.1.1.4 root 868: env->cansave++;
869: env->canrestore--;
870: #endif
1.1 root 871: }
872:
873: static void restore_window(CPUSPARCState *env)
874: {
1.1.1.7 root 875: #ifndef TARGET_SPARC64
876: unsigned int new_wim;
877: #endif
878: unsigned int i, cwp1;
1.1.1.6 root 879: abi_ulong sp_ptr;
880:
1.1.1.7 root 881: #ifndef TARGET_SPARC64
882: new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) &
883: ((1LL << env->nwindows) - 1);
884: #endif
1.1.1.6 root 885:
1.1 root 886: /* restore the invalid window */
1.1.1.7 root 887: cwp1 = cpu_cwp_inc(env, env->cwp + 1);
1.1.1.3 root 888: sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
1.1.1.7 root 889: #ifdef TARGET_SPARC64
890: if (sp_ptr & 3)
891: sp_ptr += SPARC64_STACK_BIAS;
892: #endif
1.1 root 893: #if defined(DEBUG_WIN)
1.1.1.7 root 894: printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n",
895: sp_ptr, cwp1);
1.1 root 896: #endif
897: for(i = 0; i < 16; i++) {
1.1.1.6 root 898: /* FIXME - what to do if get_user() fails? */
899: get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
900: sp_ptr += sizeof(abi_ulong);
1.1 root 901: }
1.1.1.4 root 902: #ifdef TARGET_SPARC64
903: env->canrestore++;
1.1.1.7 root 904: if (env->cleanwin < env->nwindows - 1)
905: env->cleanwin++;
1.1.1.4 root 906: env->cansave--;
1.1.1.7 root 907: #else
908: env->wim = new_wim;
1.1.1.4 root 909: #endif
1.1 root 910: }
911:
912: static void flush_windows(CPUSPARCState *env)
913: {
914: int offset, cwp1;
915:
916: offset = 1;
917: for(;;) {
918: /* if restore would invoke restore_window(), then we can stop */
1.1.1.7 root 919: cwp1 = cpu_cwp_inc(env, env->cwp + offset);
920: #ifndef TARGET_SPARC64
1.1 root 921: if (env->wim & (1 << cwp1))
922: break;
1.1.1.7 root 923: #else
924: if (env->canrestore == 0)
925: break;
926: env->cansave++;
927: env->canrestore--;
928: #endif
1.1 root 929: save_window_offset(env, cwp1);
930: offset++;
931: }
1.1.1.7 root 932: cwp1 = cpu_cwp_inc(env, env->cwp + 1);
933: #ifndef TARGET_SPARC64
1.1 root 934: /* set wim so that restore will reload the registers */
935: env->wim = 1 << cwp1;
1.1.1.7 root 936: #endif
1.1 root 937: #if defined(DEBUG_WIN)
938: printf("flush_windows: nb=%d\n", offset - 1);
939: #endif
940: }
941:
942: void cpu_loop (CPUSPARCState *env)
943: {
1.1.1.11! root 944: int trapnr;
! 945: abi_long ret;
1.1 root 946: target_siginfo_t info;
1.1.1.6 root 947:
1.1 root 948: while (1) {
949: trapnr = cpu_sparc_exec (env);
1.1.1.6 root 950:
1.1 root 951: switch (trapnr) {
1.1.1.4 root 952: #ifndef TARGET_SPARC64
1.1.1.6 root 953: case 0x88:
1.1 root 954: case 0x90:
1.1.1.4 root 955: #else
1.1.1.6 root 956: case 0x110:
1.1.1.4 root 957: case 0x16d:
958: #endif
1.1 root 959: ret = do_syscall (env, env->gregs[1],
1.1.1.6 root 960: env->regwptr[0], env->regwptr[1],
961: env->regwptr[2], env->regwptr[3],
1.1 root 962: env->regwptr[4], env->regwptr[5]);
1.1.1.11! root 963: if ((abi_ulong)ret >= (abi_ulong)(-515)) {
1.1.1.6 root 964: #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
1.1.1.5 root 965: env->xcc |= PSR_CARRY;
966: #else
1.1 root 967: env->psr |= PSR_CARRY;
1.1.1.5 root 968: #endif
1.1 root 969: ret = -ret;
970: } else {
1.1.1.6 root 971: #if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
1.1.1.5 root 972: env->xcc &= ~PSR_CARRY;
973: #else
1.1 root 974: env->psr &= ~PSR_CARRY;
1.1.1.5 root 975: #endif
1.1 root 976: }
977: env->regwptr[0] = ret;
978: /* next instruction */
979: env->pc = env->npc;
980: env->npc = env->npc + 4;
981: break;
982: case 0x83: /* flush windows */
1.1.1.6 root 983: #ifdef TARGET_ABI32
984: case 0x103:
985: #endif
1.1 root 986: flush_windows(env);
987: /* next instruction */
988: env->pc = env->npc;
989: env->npc = env->npc + 4;
990: break;
991: #ifndef TARGET_SPARC64
992: case TT_WIN_OVF: /* window overflow */
993: save_window(env);
994: break;
995: case TT_WIN_UNF: /* window underflow */
996: restore_window(env);
997: break;
998: case TT_TFAULT:
999: case TT_DFAULT:
1000: {
1001: info.si_signo = SIGSEGV;
1002: info.si_errno = 0;
1003: /* XXX: check env->error_code */
1004: info.si_code = TARGET_SEGV_MAPERR;
1005: info._sifields._sigfault._addr = env->mmuregs[4];
1.1.1.7 root 1006: queue_signal(env, info.si_signo, &info);
1.1 root 1007: }
1008: break;
1009: #else
1.1.1.4 root 1010: case TT_SPILL: /* window overflow */
1011: save_window(env);
1012: break;
1013: case TT_FILL: /* window underflow */
1014: restore_window(env);
1015: break;
1.1.1.6 root 1016: case TT_TFAULT:
1017: case TT_DFAULT:
1018: {
1019: info.si_signo = SIGSEGV;
1020: info.si_errno = 0;
1021: /* XXX: check env->error_code */
1022: info.si_code = TARGET_SEGV_MAPERR;
1023: if (trapnr == TT_DFAULT)
1024: info._sifields._sigfault._addr = env->dmmuregs[4];
1025: else
1.1.1.9 root 1026: info._sifields._sigfault._addr = cpu_tsptr(env)->tpc;
1.1.1.7 root 1027: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 1028: }
1029: break;
1030: #ifndef TARGET_ABI32
1031: case 0x16e:
1032: flush_windows(env);
1033: sparc64_get_context(env);
1034: break;
1035: case 0x16f:
1036: flush_windows(env);
1037: sparc64_set_context(env);
1038: break;
1039: #endif
1.1 root 1040: #endif
1.1.1.4 root 1041: case EXCP_INTERRUPT:
1042: /* just indicate that signals should be handled asap */
1043: break;
1.1 root 1044: case EXCP_DEBUG:
1045: {
1046: int sig;
1047:
1048: sig = gdb_handlesig (env, TARGET_SIGTRAP);
1049: if (sig)
1050: {
1051: info.si_signo = sig;
1052: info.si_errno = 0;
1053: info.si_code = TARGET_TRAP_BRKPT;
1.1.1.7 root 1054: queue_signal(env, info.si_signo, &info);
1.1 root 1055: }
1056: }
1057: break;
1058: default:
1059: printf ("Unhandled trap: 0x%x\n", trapnr);
1060: cpu_dump_state(env, stderr, fprintf, 0);
1061: exit (1);
1062: }
1063: process_pending_signals (env);
1064: }
1065: }
1066:
1067: #endif
1068:
1069: #ifdef TARGET_PPC
1070: static inline uint64_t cpu_ppc_get_tb (CPUState *env)
1071: {
1072: /* TO FIX */
1073: return 0;
1074: }
1.1.1.6 root 1075:
1.1.1.11! root 1076: uint64_t cpu_ppc_load_tbl (CPUState *env)
1.1 root 1077: {
1.1.1.11! root 1078: return cpu_ppc_get_tb(env);
1.1 root 1079: }
1.1.1.6 root 1080:
1.1 root 1081: uint32_t cpu_ppc_load_tbu (CPUState *env)
1082: {
1083: return cpu_ppc_get_tb(env) >> 32;
1084: }
1.1.1.6 root 1085:
1.1.1.11! root 1086: uint64_t cpu_ppc_load_atbl (CPUState *env)
1.1 root 1087: {
1.1.1.11! root 1088: return cpu_ppc_get_tb(env);
1.1 root 1089: }
1090:
1.1.1.6 root 1091: uint32_t cpu_ppc_load_atbu (CPUState *env)
1.1 root 1092: {
1.1.1.6 root 1093: return cpu_ppc_get_tb(env) >> 32;
1.1 root 1094: }
1.1.1.6 root 1095:
1096: uint32_t cpu_ppc601_load_rtcu (CPUState *env)
1097: __attribute__ (( alias ("cpu_ppc_load_tbu") ));
1098:
1099: uint32_t cpu_ppc601_load_rtcl (CPUState *env)
1.1 root 1100: {
1.1.1.6 root 1101: return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
1.1 root 1102: }
1.1.1.6 root 1103:
1104: /* XXX: to be fixed */
1.1.1.11! root 1105: int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, uint32_t *valp)
1.1 root 1106: {
1107: return -1;
1108: }
1.1.1.6 root 1109:
1.1.1.11! root 1110: int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, uint32_t val)
1.1 root 1111: {
1.1.1.6 root 1112: return -1;
1.1 root 1113: }
1.1.1.6 root 1114:
1.1.1.8 root 1115: #define EXCP_DUMP(env, fmt, ...) \
1116: do { \
1117: fprintf(stderr, fmt , ## __VA_ARGS__); \
1118: cpu_dump_state(env, stderr, fprintf, 0); \
1119: qemu_log(fmt, ## __VA_ARGS__); \
1120: if (logfile) \
1121: log_cpu_state(env, 0); \
1.1.1.6 root 1122: } while (0)
1123:
1.1.1.9 root 1124: static int do_store_exclusive(CPUPPCState *env)
1125: {
1126: target_ulong addr;
1127: target_ulong page_addr;
1128: target_ulong val;
1129: int flags;
1130: int segv = 0;
1131:
1132: addr = env->reserve_ea;
1133: page_addr = addr & TARGET_PAGE_MASK;
1134: start_exclusive();
1135: mmap_lock();
1136: flags = page_get_flags(page_addr);
1137: if ((flags & PAGE_READ) == 0) {
1138: segv = 1;
1139: } else {
1140: int reg = env->reserve_info & 0x1f;
1141: int size = (env->reserve_info >> 5) & 0xf;
1142: int stored = 0;
1143:
1144: if (addr == env->reserve_addr) {
1145: switch (size) {
1146: case 1: segv = get_user_u8(val, addr); break;
1147: case 2: segv = get_user_u16(val, addr); break;
1148: case 4: segv = get_user_u32(val, addr); break;
1149: #if defined(TARGET_PPC64)
1150: case 8: segv = get_user_u64(val, addr); break;
1151: #endif
1152: default: abort();
1153: }
1154: if (!segv && val == env->reserve_val) {
1155: val = env->gpr[reg];
1156: switch (size) {
1157: case 1: segv = put_user_u8(val, addr); break;
1158: case 2: segv = put_user_u16(val, addr); break;
1159: case 4: segv = put_user_u32(val, addr); break;
1160: #if defined(TARGET_PPC64)
1161: case 8: segv = put_user_u64(val, addr); break;
1162: #endif
1163: default: abort();
1164: }
1165: if (!segv) {
1166: stored = 1;
1167: }
1168: }
1169: }
1170: env->crf[0] = (stored << 1) | xer_so;
1171: env->reserve_addr = (target_ulong)-1;
1172: }
1173: if (!segv) {
1174: env->nip += 4;
1175: }
1176: mmap_unlock();
1177: end_exclusive();
1178: return segv;
1179: }
1180:
1.1 root 1181: void cpu_loop(CPUPPCState *env)
1182: {
1183: target_siginfo_t info;
1184: int trapnr;
1185: uint32_t ret;
1.1.1.6 root 1186:
1.1 root 1187: for(;;) {
1.1.1.9 root 1188: cpu_exec_start(env);
1.1 root 1189: trapnr = cpu_ppc_exec(env);
1.1.1.9 root 1190: cpu_exec_end(env);
1.1 root 1191: switch(trapnr) {
1.1.1.6 root 1192: case POWERPC_EXCP_NONE:
1193: /* Just go on */
1.1 root 1194: break;
1.1.1.6 root 1195: case POWERPC_EXCP_CRITICAL: /* Critical input */
1196: cpu_abort(env, "Critical interrupt while in user mode. "
1197: "Aborting\n");
1198: break;
1199: case POWERPC_EXCP_MCHECK: /* Machine check exception */
1200: cpu_abort(env, "Machine check exception while in user mode. "
1201: "Aborting\n");
1202: break;
1203: case POWERPC_EXCP_DSI: /* Data storage exception */
1.1.1.9 root 1204: EXCP_DUMP(env, "Invalid data memory access: 0x" TARGET_FMT_lx "\n",
1.1.1.6 root 1205: env->spr[SPR_DAR]);
1206: /* XXX: check this. Seems bugged */
1.1 root 1207: switch (env->error_code & 0xFF000000) {
1208: case 0x40000000:
1209: info.si_signo = TARGET_SIGSEGV;
1210: info.si_errno = 0;
1211: info.si_code = TARGET_SEGV_MAPERR;
1212: break;
1213: case 0x04000000:
1214: info.si_signo = TARGET_SIGILL;
1215: info.si_errno = 0;
1216: info.si_code = TARGET_ILL_ILLADR;
1217: break;
1218: case 0x08000000:
1219: info.si_signo = TARGET_SIGSEGV;
1220: info.si_errno = 0;
1221: info.si_code = TARGET_SEGV_ACCERR;
1222: break;
1223: default:
1224: /* Let's send a regular segfault... */
1.1.1.6 root 1225: EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1226: env->error_code);
1.1 root 1227: info.si_signo = TARGET_SIGSEGV;
1228: info.si_errno = 0;
1229: info.si_code = TARGET_SEGV_MAPERR;
1230: break;
1231: }
1232: info._sifields._sigfault._addr = env->nip;
1.1.1.7 root 1233: queue_signal(env, info.si_signo, &info);
1.1 root 1234: break;
1.1.1.6 root 1235: case POWERPC_EXCP_ISI: /* Instruction storage exception */
1.1.1.9 root 1236: EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" TARGET_FMT_lx
1237: "\n", env->spr[SPR_SRR0]);
1.1.1.6 root 1238: /* XXX: check this */
1.1 root 1239: switch (env->error_code & 0xFF000000) {
1240: case 0x40000000:
1241: info.si_signo = TARGET_SIGSEGV;
1242: info.si_errno = 0;
1243: info.si_code = TARGET_SEGV_MAPERR;
1244: break;
1245: case 0x10000000:
1246: case 0x08000000:
1247: info.si_signo = TARGET_SIGSEGV;
1248: info.si_errno = 0;
1249: info.si_code = TARGET_SEGV_ACCERR;
1250: break;
1251: default:
1252: /* Let's send a regular segfault... */
1.1.1.6 root 1253: EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1254: env->error_code);
1.1 root 1255: info.si_signo = TARGET_SIGSEGV;
1256: info.si_errno = 0;
1257: info.si_code = TARGET_SEGV_MAPERR;
1258: break;
1259: }
1260: info._sifields._sigfault._addr = env->nip - 4;
1.1.1.7 root 1261: queue_signal(env, info.si_signo, &info);
1.1 root 1262: break;
1.1.1.6 root 1263: case POWERPC_EXCP_EXTERNAL: /* External input */
1264: cpu_abort(env, "External interrupt while in user mode. "
1265: "Aborting\n");
1266: break;
1267: case POWERPC_EXCP_ALIGN: /* Alignment exception */
1268: EXCP_DUMP(env, "Unaligned memory access\n");
1269: /* XXX: check this */
1.1 root 1270: info.si_signo = TARGET_SIGBUS;
1271: info.si_errno = 0;
1272: info.si_code = TARGET_BUS_ADRALN;
1273: info._sifields._sigfault._addr = env->nip - 4;
1.1.1.7 root 1274: queue_signal(env, info.si_signo, &info);
1.1 root 1275: break;
1.1.1.6 root 1276: case POWERPC_EXCP_PROGRAM: /* Program exception */
1277: /* XXX: check this */
1.1 root 1278: switch (env->error_code & ~0xF) {
1.1.1.6 root 1279: case POWERPC_EXCP_FP:
1280: EXCP_DUMP(env, "Floating point program exception\n");
1.1 root 1281: info.si_signo = TARGET_SIGFPE;
1282: info.si_errno = 0;
1283: switch (env->error_code & 0xF) {
1.1.1.6 root 1284: case POWERPC_EXCP_FP_OX:
1.1 root 1285: info.si_code = TARGET_FPE_FLTOVF;
1286: break;
1.1.1.6 root 1287: case POWERPC_EXCP_FP_UX:
1.1 root 1288: info.si_code = TARGET_FPE_FLTUND;
1289: break;
1.1.1.6 root 1290: case POWERPC_EXCP_FP_ZX:
1291: case POWERPC_EXCP_FP_VXZDZ:
1.1 root 1292: info.si_code = TARGET_FPE_FLTDIV;
1293: break;
1.1.1.6 root 1294: case POWERPC_EXCP_FP_XX:
1.1 root 1295: info.si_code = TARGET_FPE_FLTRES;
1296: break;
1.1.1.6 root 1297: case POWERPC_EXCP_FP_VXSOFT:
1.1 root 1298: info.si_code = TARGET_FPE_FLTINV;
1299: break;
1.1.1.6 root 1300: case POWERPC_EXCP_FP_VXSNAN:
1301: case POWERPC_EXCP_FP_VXISI:
1302: case POWERPC_EXCP_FP_VXIDI:
1303: case POWERPC_EXCP_FP_VXIMZ:
1304: case POWERPC_EXCP_FP_VXVC:
1305: case POWERPC_EXCP_FP_VXSQRT:
1306: case POWERPC_EXCP_FP_VXCVI:
1.1 root 1307: info.si_code = TARGET_FPE_FLTSUB;
1308: break;
1309: default:
1.1.1.6 root 1310: EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
1311: env->error_code);
1312: break;
1.1 root 1313: }
1.1.1.6 root 1314: break;
1315: case POWERPC_EXCP_INVAL:
1316: EXCP_DUMP(env, "Invalid instruction\n");
1.1 root 1317: info.si_signo = TARGET_SIGILL;
1318: info.si_errno = 0;
1319: switch (env->error_code & 0xF) {
1.1.1.6 root 1320: case POWERPC_EXCP_INVAL_INVAL:
1.1 root 1321: info.si_code = TARGET_ILL_ILLOPC;
1322: break;
1.1.1.6 root 1323: case POWERPC_EXCP_INVAL_LSWX:
1324: info.si_code = TARGET_ILL_ILLOPN;
1.1 root 1325: break;
1.1.1.6 root 1326: case POWERPC_EXCP_INVAL_SPR:
1.1 root 1327: info.si_code = TARGET_ILL_PRVREG;
1328: break;
1.1.1.6 root 1329: case POWERPC_EXCP_INVAL_FP:
1.1 root 1330: info.si_code = TARGET_ILL_COPROC;
1331: break;
1332: default:
1.1.1.6 root 1333: EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
1334: env->error_code & 0xF);
1.1 root 1335: info.si_code = TARGET_ILL_ILLADR;
1336: break;
1337: }
1338: break;
1.1.1.6 root 1339: case POWERPC_EXCP_PRIV:
1340: EXCP_DUMP(env, "Privilege violation\n");
1.1 root 1341: info.si_signo = TARGET_SIGILL;
1342: info.si_errno = 0;
1343: switch (env->error_code & 0xF) {
1.1.1.6 root 1344: case POWERPC_EXCP_PRIV_OPC:
1.1 root 1345: info.si_code = TARGET_ILL_PRVOPC;
1346: break;
1.1.1.6 root 1347: case POWERPC_EXCP_PRIV_REG:
1.1 root 1348: info.si_code = TARGET_ILL_PRVREG;
1.1.1.6 root 1349: break;
1.1 root 1350: default:
1.1.1.6 root 1351: EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
1352: env->error_code & 0xF);
1.1 root 1353: info.si_code = TARGET_ILL_PRVOPC;
1354: break;
1355: }
1356: break;
1.1.1.6 root 1357: case POWERPC_EXCP_TRAP:
1358: cpu_abort(env, "Tried to call a TRAP\n");
1359: break;
1.1 root 1360: default:
1361: /* Should not happen ! */
1.1.1.6 root 1362: cpu_abort(env, "Unknown program exception (%02x)\n",
1363: env->error_code);
1364: break;
1.1 root 1365: }
1366: info._sifields._sigfault._addr = env->nip - 4;
1.1.1.7 root 1367: queue_signal(env, info.si_signo, &info);
1.1 root 1368: break;
1.1.1.6 root 1369: case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
1370: EXCP_DUMP(env, "No floating point allowed\n");
1.1 root 1371: info.si_signo = TARGET_SIGILL;
1372: info.si_errno = 0;
1373: info.si_code = TARGET_ILL_COPROC;
1374: info._sifields._sigfault._addr = env->nip - 4;
1.1.1.7 root 1375: queue_signal(env, info.si_signo, &info);
1.1 root 1376: break;
1.1.1.6 root 1377: case POWERPC_EXCP_SYSCALL: /* System call exception */
1378: cpu_abort(env, "Syscall exception while in user mode. "
1379: "Aborting\n");
1.1 root 1380: break;
1.1.1.6 root 1381: case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
1382: EXCP_DUMP(env, "No APU instruction allowed\n");
1383: info.si_signo = TARGET_SIGILL;
1384: info.si_errno = 0;
1385: info.si_code = TARGET_ILL_COPROC;
1386: info._sifields._sigfault._addr = env->nip - 4;
1.1.1.7 root 1387: queue_signal(env, info.si_signo, &info);
1.1 root 1388: break;
1.1.1.6 root 1389: case POWERPC_EXCP_DECR: /* Decrementer exception */
1390: cpu_abort(env, "Decrementer interrupt while in user mode. "
1391: "Aborting\n");
1392: break;
1393: case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
1394: cpu_abort(env, "Fix interval timer interrupt while in user mode. "
1395: "Aborting\n");
1396: break;
1397: case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
1398: cpu_abort(env, "Watchdog timer interrupt while in user mode. "
1399: "Aborting\n");
1400: break;
1401: case POWERPC_EXCP_DTLB: /* Data TLB error */
1402: cpu_abort(env, "Data TLB exception while in user mode. "
1403: "Aborting\n");
1404: break;
1405: case POWERPC_EXCP_ITLB: /* Instruction TLB error */
1406: cpu_abort(env, "Instruction TLB exception while in user mode. "
1407: "Aborting\n");
1.1 root 1408: break;
1.1.1.6 root 1409: case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */
1410: EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
1411: info.si_signo = TARGET_SIGILL;
1412: info.si_errno = 0;
1413: info.si_code = TARGET_ILL_COPROC;
1414: info._sifields._sigfault._addr = env->nip - 4;
1.1.1.7 root 1415: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 1416: break;
1417: case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */
1418: cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
1419: break;
1420: case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */
1421: cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
1422: break;
1423: case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */
1424: cpu_abort(env, "Performance monitor exception not handled\n");
1425: break;
1426: case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
1427: cpu_abort(env, "Doorbell interrupt while in user mode. "
1428: "Aborting\n");
1429: break;
1430: case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
1431: cpu_abort(env, "Doorbell critical interrupt while in user mode. "
1432: "Aborting\n");
1433: break;
1434: case POWERPC_EXCP_RESET: /* System reset exception */
1435: cpu_abort(env, "Reset interrupt while in user mode. "
1436: "Aborting\n");
1437: break;
1438: case POWERPC_EXCP_DSEG: /* Data segment exception */
1439: cpu_abort(env, "Data segment exception while in user mode. "
1440: "Aborting\n");
1441: break;
1442: case POWERPC_EXCP_ISEG: /* Instruction segment exception */
1443: cpu_abort(env, "Instruction segment exception "
1444: "while in user mode. Aborting\n");
1445: break;
1446: /* PowerPC 64 with hypervisor mode support */
1447: case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
1448: cpu_abort(env, "Hypervisor decrementer interrupt "
1449: "while in user mode. Aborting\n");
1450: break;
1451: case POWERPC_EXCP_TRACE: /* Trace exception */
1452: /* Nothing to do:
1453: * we use this exception to emulate step-by-step execution mode.
1454: */
1455: break;
1456: /* PowerPC 64 with hypervisor mode support */
1457: case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
1458: cpu_abort(env, "Hypervisor data storage exception "
1459: "while in user mode. Aborting\n");
1460: break;
1461: case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */
1462: cpu_abort(env, "Hypervisor instruction storage exception "
1463: "while in user mode. Aborting\n");
1464: break;
1465: case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
1466: cpu_abort(env, "Hypervisor data segment exception "
1467: "while in user mode. Aborting\n");
1468: break;
1469: case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */
1470: cpu_abort(env, "Hypervisor instruction segment exception "
1471: "while in user mode. Aborting\n");
1472: break;
1473: case POWERPC_EXCP_VPU: /* Vector unavailable exception */
1474: EXCP_DUMP(env, "No Altivec instructions allowed\n");
1475: info.si_signo = TARGET_SIGILL;
1476: info.si_errno = 0;
1477: info.si_code = TARGET_ILL_COPROC;
1478: info._sifields._sigfault._addr = env->nip - 4;
1.1.1.7 root 1479: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 1480: break;
1481: case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */
1482: cpu_abort(env, "Programable interval timer interrupt "
1483: "while in user mode. Aborting\n");
1484: break;
1485: case POWERPC_EXCP_IO: /* IO error exception */
1486: cpu_abort(env, "IO error exception while in user mode. "
1487: "Aborting\n");
1488: break;
1489: case POWERPC_EXCP_RUNM: /* Run mode exception */
1490: cpu_abort(env, "Run mode exception while in user mode. "
1491: "Aborting\n");
1492: break;
1493: case POWERPC_EXCP_EMUL: /* Emulation trap exception */
1494: cpu_abort(env, "Emulation trap exception not handled\n");
1495: break;
1496: case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
1497: cpu_abort(env, "Instruction fetch TLB exception "
1498: "while in user-mode. Aborting");
1499: break;
1500: case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
1501: cpu_abort(env, "Data load TLB exception while in user-mode. "
1502: "Aborting");
1503: break;
1504: case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
1505: cpu_abort(env, "Data store TLB exception while in user-mode. "
1506: "Aborting");
1507: break;
1508: case POWERPC_EXCP_FPA: /* Floating-point assist exception */
1509: cpu_abort(env, "Floating-point assist exception not handled\n");
1510: break;
1511: case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
1512: cpu_abort(env, "Instruction address breakpoint exception "
1513: "not handled\n");
1514: break;
1515: case POWERPC_EXCP_SMI: /* System management interrupt */
1516: cpu_abort(env, "System management interrupt while in user mode. "
1517: "Aborting\n");
1518: break;
1519: case POWERPC_EXCP_THERM: /* Thermal interrupt */
1520: cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
1521: "Aborting\n");
1522: break;
1523: case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */
1524: cpu_abort(env, "Performance monitor exception not handled\n");
1525: break;
1526: case POWERPC_EXCP_VPUA: /* Vector assist exception */
1527: cpu_abort(env, "Vector assist exception not handled\n");
1528: break;
1529: case POWERPC_EXCP_SOFTP: /* Soft patch exception */
1530: cpu_abort(env, "Soft patch exception not handled\n");
1531: break;
1532: case POWERPC_EXCP_MAINT: /* Maintenance exception */
1533: cpu_abort(env, "Maintenance exception while in user mode. "
1534: "Aborting\n");
1535: break;
1536: case POWERPC_EXCP_STOP: /* stop translation */
1537: /* We did invalidate the instruction cache. Go on */
1538: break;
1539: case POWERPC_EXCP_BRANCH: /* branch instruction: */
1540: /* We just stopped because of a branch. Go on */
1541: break;
1542: case POWERPC_EXCP_SYSCALL_USER:
1543: /* system call in user-mode emulation */
1544: /* WARNING:
1545: * PPC ABI uses overflow flag in cr0 to signal an error
1546: * in syscalls.
1547: */
1548: #if 0
1549: printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
1550: env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
1551: #endif
1552: env->crf[0] &= ~0x1;
1553: ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
1554: env->gpr[5], env->gpr[6], env->gpr[7],
1555: env->gpr[8]);
1.1.1.8 root 1556: if (ret == (uint32_t)(-TARGET_QEMU_ESIGRETURN)) {
1557: /* Returning from a successful sigreturn syscall.
1558: Avoid corrupting register state. */
1559: break;
1560: }
1.1.1.6 root 1561: if (ret > (uint32_t)(-515)) {
1562: env->crf[0] |= 0x1;
1563: ret = -ret;
1.1 root 1564: }
1.1.1.6 root 1565: env->gpr[3] = ret;
1566: #if 0
1567: printf("syscall returned 0x%08x (%d)\n", ret, ret);
1568: #endif
1569: break;
1.1.1.9 root 1570: case POWERPC_EXCP_STCX:
1571: if (do_store_exclusive(env)) {
1572: info.si_signo = TARGET_SIGSEGV;
1573: info.si_errno = 0;
1574: info.si_code = TARGET_SEGV_MAPERR;
1575: info._sifields._sigfault._addr = env->nip;
1576: queue_signal(env, info.si_signo, &info);
1577: }
1578: break;
1.1.1.7 root 1579: case EXCP_DEBUG:
1580: {
1581: int sig;
1582:
1583: sig = gdb_handlesig(env, TARGET_SIGTRAP);
1584: if (sig) {
1585: info.si_signo = sig;
1586: info.si_errno = 0;
1587: info.si_code = TARGET_TRAP_BRKPT;
1588: queue_signal(env, info.si_signo, &info);
1589: }
1590: }
1591: break;
1.1.1.6 root 1592: case EXCP_INTERRUPT:
1593: /* just indicate that signals should be handled asap */
1594: break;
1595: default:
1596: cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
1597: break;
1.1 root 1598: }
1599: process_pending_signals(env);
1600: }
1601: }
1602: #endif
1603:
1.1.1.2 root 1604: #ifdef TARGET_MIPS
1605:
1606: #define MIPS_SYS(name, args) args,
1607:
1608: static const uint8_t mips_syscall_args[] = {
1609: MIPS_SYS(sys_syscall , 0) /* 4000 */
1610: MIPS_SYS(sys_exit , 1)
1611: MIPS_SYS(sys_fork , 0)
1612: MIPS_SYS(sys_read , 3)
1613: MIPS_SYS(sys_write , 3)
1614: MIPS_SYS(sys_open , 3) /* 4005 */
1615: MIPS_SYS(sys_close , 1)
1616: MIPS_SYS(sys_waitpid , 3)
1617: MIPS_SYS(sys_creat , 2)
1618: MIPS_SYS(sys_link , 2)
1619: MIPS_SYS(sys_unlink , 1) /* 4010 */
1620: MIPS_SYS(sys_execve , 0)
1621: MIPS_SYS(sys_chdir , 1)
1622: MIPS_SYS(sys_time , 1)
1623: MIPS_SYS(sys_mknod , 3)
1624: MIPS_SYS(sys_chmod , 2) /* 4015 */
1625: MIPS_SYS(sys_lchown , 3)
1626: MIPS_SYS(sys_ni_syscall , 0)
1627: MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1628: MIPS_SYS(sys_lseek , 3)
1629: MIPS_SYS(sys_getpid , 0) /* 4020 */
1630: MIPS_SYS(sys_mount , 5)
1631: MIPS_SYS(sys_oldumount , 1)
1632: MIPS_SYS(sys_setuid , 1)
1633: MIPS_SYS(sys_getuid , 0)
1634: MIPS_SYS(sys_stime , 1) /* 4025 */
1635: MIPS_SYS(sys_ptrace , 4)
1636: MIPS_SYS(sys_alarm , 1)
1637: MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1638: MIPS_SYS(sys_pause , 0)
1639: MIPS_SYS(sys_utime , 2) /* 4030 */
1640: MIPS_SYS(sys_ni_syscall , 0)
1641: MIPS_SYS(sys_ni_syscall , 0)
1642: MIPS_SYS(sys_access , 2)
1643: MIPS_SYS(sys_nice , 1)
1644: MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1645: MIPS_SYS(sys_sync , 0)
1646: MIPS_SYS(sys_kill , 2)
1647: MIPS_SYS(sys_rename , 2)
1648: MIPS_SYS(sys_mkdir , 2)
1649: MIPS_SYS(sys_rmdir , 1) /* 4040 */
1650: MIPS_SYS(sys_dup , 1)
1651: MIPS_SYS(sys_pipe , 0)
1652: MIPS_SYS(sys_times , 1)
1653: MIPS_SYS(sys_ni_syscall , 0)
1654: MIPS_SYS(sys_brk , 1) /* 4045 */
1655: MIPS_SYS(sys_setgid , 1)
1656: MIPS_SYS(sys_getgid , 0)
1657: MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1658: MIPS_SYS(sys_geteuid , 0)
1659: MIPS_SYS(sys_getegid , 0) /* 4050 */
1660: MIPS_SYS(sys_acct , 0)
1661: MIPS_SYS(sys_umount , 2)
1662: MIPS_SYS(sys_ni_syscall , 0)
1663: MIPS_SYS(sys_ioctl , 3)
1664: MIPS_SYS(sys_fcntl , 3) /* 4055 */
1665: MIPS_SYS(sys_ni_syscall , 2)
1666: MIPS_SYS(sys_setpgid , 2)
1667: MIPS_SYS(sys_ni_syscall , 0)
1668: MIPS_SYS(sys_olduname , 1)
1669: MIPS_SYS(sys_umask , 1) /* 4060 */
1670: MIPS_SYS(sys_chroot , 1)
1671: MIPS_SYS(sys_ustat , 2)
1672: MIPS_SYS(sys_dup2 , 2)
1673: MIPS_SYS(sys_getppid , 0)
1674: MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1675: MIPS_SYS(sys_setsid , 0)
1676: MIPS_SYS(sys_sigaction , 3)
1677: MIPS_SYS(sys_sgetmask , 0)
1678: MIPS_SYS(sys_ssetmask , 1)
1679: MIPS_SYS(sys_setreuid , 2) /* 4070 */
1680: MIPS_SYS(sys_setregid , 2)
1681: MIPS_SYS(sys_sigsuspend , 0)
1682: MIPS_SYS(sys_sigpending , 1)
1683: MIPS_SYS(sys_sethostname , 2)
1684: MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1685: MIPS_SYS(sys_getrlimit , 2)
1686: MIPS_SYS(sys_getrusage , 2)
1687: MIPS_SYS(sys_gettimeofday, 2)
1688: MIPS_SYS(sys_settimeofday, 2)
1689: MIPS_SYS(sys_getgroups , 2) /* 4080 */
1690: MIPS_SYS(sys_setgroups , 2)
1691: MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1692: MIPS_SYS(sys_symlink , 2)
1693: MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1694: MIPS_SYS(sys_readlink , 3) /* 4085 */
1695: MIPS_SYS(sys_uselib , 1)
1696: MIPS_SYS(sys_swapon , 2)
1697: MIPS_SYS(sys_reboot , 3)
1698: MIPS_SYS(old_readdir , 3)
1699: MIPS_SYS(old_mmap , 6) /* 4090 */
1700: MIPS_SYS(sys_munmap , 2)
1701: MIPS_SYS(sys_truncate , 2)
1702: MIPS_SYS(sys_ftruncate , 2)
1703: MIPS_SYS(sys_fchmod , 2)
1704: MIPS_SYS(sys_fchown , 3) /* 4095 */
1705: MIPS_SYS(sys_getpriority , 2)
1706: MIPS_SYS(sys_setpriority , 3)
1707: MIPS_SYS(sys_ni_syscall , 0)
1708: MIPS_SYS(sys_statfs , 2)
1709: MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1710: MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1711: MIPS_SYS(sys_socketcall , 2)
1712: MIPS_SYS(sys_syslog , 3)
1713: MIPS_SYS(sys_setitimer , 3)
1714: MIPS_SYS(sys_getitimer , 2) /* 4105 */
1715: MIPS_SYS(sys_newstat , 2)
1716: MIPS_SYS(sys_newlstat , 2)
1717: MIPS_SYS(sys_newfstat , 2)
1718: MIPS_SYS(sys_uname , 1)
1719: MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1720: MIPS_SYS(sys_vhangup , 0)
1721: MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1722: MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1723: MIPS_SYS(sys_wait4 , 4)
1724: MIPS_SYS(sys_swapoff , 1) /* 4115 */
1725: MIPS_SYS(sys_sysinfo , 1)
1726: MIPS_SYS(sys_ipc , 6)
1727: MIPS_SYS(sys_fsync , 1)
1728: MIPS_SYS(sys_sigreturn , 0)
1.1.1.8 root 1729: MIPS_SYS(sys_clone , 6) /* 4120 */
1.1.1.2 root 1730: MIPS_SYS(sys_setdomainname, 2)
1731: MIPS_SYS(sys_newuname , 1)
1732: MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1733: MIPS_SYS(sys_adjtimex , 1)
1734: MIPS_SYS(sys_mprotect , 3) /* 4125 */
1735: MIPS_SYS(sys_sigprocmask , 3)
1736: MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1737: MIPS_SYS(sys_init_module , 5)
1738: MIPS_SYS(sys_delete_module, 1)
1739: MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1740: MIPS_SYS(sys_quotactl , 0)
1741: MIPS_SYS(sys_getpgid , 1)
1742: MIPS_SYS(sys_fchdir , 1)
1743: MIPS_SYS(sys_bdflush , 2)
1744: MIPS_SYS(sys_sysfs , 3) /* 4135 */
1745: MIPS_SYS(sys_personality , 1)
1746: MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1747: MIPS_SYS(sys_setfsuid , 1)
1748: MIPS_SYS(sys_setfsgid , 1)
1749: MIPS_SYS(sys_llseek , 5) /* 4140 */
1750: MIPS_SYS(sys_getdents , 3)
1751: MIPS_SYS(sys_select , 5)
1752: MIPS_SYS(sys_flock , 2)
1753: MIPS_SYS(sys_msync , 3)
1754: MIPS_SYS(sys_readv , 3) /* 4145 */
1755: MIPS_SYS(sys_writev , 3)
1756: MIPS_SYS(sys_cacheflush , 3)
1757: MIPS_SYS(sys_cachectl , 3)
1758: MIPS_SYS(sys_sysmips , 4)
1759: MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1760: MIPS_SYS(sys_getsid , 1)
1761: MIPS_SYS(sys_fdatasync , 0)
1762: MIPS_SYS(sys_sysctl , 1)
1763: MIPS_SYS(sys_mlock , 2)
1764: MIPS_SYS(sys_munlock , 2) /* 4155 */
1765: MIPS_SYS(sys_mlockall , 1)
1766: MIPS_SYS(sys_munlockall , 0)
1767: MIPS_SYS(sys_sched_setparam, 2)
1768: MIPS_SYS(sys_sched_getparam, 2)
1769: MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1770: MIPS_SYS(sys_sched_getscheduler, 1)
1771: MIPS_SYS(sys_sched_yield , 0)
1772: MIPS_SYS(sys_sched_get_priority_max, 1)
1773: MIPS_SYS(sys_sched_get_priority_min, 1)
1774: MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1775: MIPS_SYS(sys_nanosleep, 2)
1776: MIPS_SYS(sys_mremap , 4)
1777: MIPS_SYS(sys_accept , 3)
1778: MIPS_SYS(sys_bind , 3)
1779: MIPS_SYS(sys_connect , 3) /* 4170 */
1780: MIPS_SYS(sys_getpeername , 3)
1781: MIPS_SYS(sys_getsockname , 3)
1782: MIPS_SYS(sys_getsockopt , 5)
1783: MIPS_SYS(sys_listen , 2)
1784: MIPS_SYS(sys_recv , 4) /* 4175 */
1785: MIPS_SYS(sys_recvfrom , 6)
1786: MIPS_SYS(sys_recvmsg , 3)
1787: MIPS_SYS(sys_send , 4)
1788: MIPS_SYS(sys_sendmsg , 3)
1789: MIPS_SYS(sys_sendto , 6) /* 4180 */
1790: MIPS_SYS(sys_setsockopt , 5)
1791: MIPS_SYS(sys_shutdown , 2)
1792: MIPS_SYS(sys_socket , 3)
1793: MIPS_SYS(sys_socketpair , 4)
1794: MIPS_SYS(sys_setresuid , 3) /* 4185 */
1795: MIPS_SYS(sys_getresuid , 3)
1796: MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1797: MIPS_SYS(sys_poll , 3)
1798: MIPS_SYS(sys_nfsservctl , 3)
1799: MIPS_SYS(sys_setresgid , 3) /* 4190 */
1800: MIPS_SYS(sys_getresgid , 3)
1801: MIPS_SYS(sys_prctl , 5)
1802: MIPS_SYS(sys_rt_sigreturn, 0)
1803: MIPS_SYS(sys_rt_sigaction, 4)
1804: MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1805: MIPS_SYS(sys_rt_sigpending, 2)
1806: MIPS_SYS(sys_rt_sigtimedwait, 4)
1807: MIPS_SYS(sys_rt_sigqueueinfo, 3)
1808: MIPS_SYS(sys_rt_sigsuspend, 0)
1809: MIPS_SYS(sys_pread64 , 6) /* 4200 */
1810: MIPS_SYS(sys_pwrite64 , 6)
1811: MIPS_SYS(sys_chown , 3)
1812: MIPS_SYS(sys_getcwd , 2)
1813: MIPS_SYS(sys_capget , 2)
1814: MIPS_SYS(sys_capset , 2) /* 4205 */
1815: MIPS_SYS(sys_sigaltstack , 0)
1816: MIPS_SYS(sys_sendfile , 4)
1817: MIPS_SYS(sys_ni_syscall , 0)
1818: MIPS_SYS(sys_ni_syscall , 0)
1819: MIPS_SYS(sys_mmap2 , 6) /* 4210 */
1820: MIPS_SYS(sys_truncate64 , 4)
1821: MIPS_SYS(sys_ftruncate64 , 4)
1822: MIPS_SYS(sys_stat64 , 2)
1823: MIPS_SYS(sys_lstat64 , 2)
1824: MIPS_SYS(sys_fstat64 , 2) /* 4215 */
1825: MIPS_SYS(sys_pivot_root , 2)
1826: MIPS_SYS(sys_mincore , 3)
1827: MIPS_SYS(sys_madvise , 3)
1828: MIPS_SYS(sys_getdents64 , 3)
1829: MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
1830: MIPS_SYS(sys_ni_syscall , 0)
1831: MIPS_SYS(sys_gettid , 0)
1832: MIPS_SYS(sys_readahead , 5)
1833: MIPS_SYS(sys_setxattr , 5)
1834: MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
1835: MIPS_SYS(sys_fsetxattr , 5)
1836: MIPS_SYS(sys_getxattr , 4)
1837: MIPS_SYS(sys_lgetxattr , 4)
1838: MIPS_SYS(sys_fgetxattr , 4)
1839: MIPS_SYS(sys_listxattr , 3) /* 4230 */
1840: MIPS_SYS(sys_llistxattr , 3)
1841: MIPS_SYS(sys_flistxattr , 3)
1842: MIPS_SYS(sys_removexattr , 2)
1843: MIPS_SYS(sys_lremovexattr, 2)
1844: MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
1845: MIPS_SYS(sys_tkill , 2)
1846: MIPS_SYS(sys_sendfile64 , 5)
1847: MIPS_SYS(sys_futex , 2)
1848: MIPS_SYS(sys_sched_setaffinity, 3)
1849: MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
1850: MIPS_SYS(sys_io_setup , 2)
1851: MIPS_SYS(sys_io_destroy , 1)
1852: MIPS_SYS(sys_io_getevents, 5)
1853: MIPS_SYS(sys_io_submit , 3)
1854: MIPS_SYS(sys_io_cancel , 3) /* 4245 */
1855: MIPS_SYS(sys_exit_group , 1)
1856: MIPS_SYS(sys_lookup_dcookie, 3)
1857: MIPS_SYS(sys_epoll_create, 1)
1858: MIPS_SYS(sys_epoll_ctl , 4)
1859: MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
1860: MIPS_SYS(sys_remap_file_pages, 5)
1861: MIPS_SYS(sys_set_tid_address, 1)
1862: MIPS_SYS(sys_restart_syscall, 0)
1863: MIPS_SYS(sys_fadvise64_64, 7)
1864: MIPS_SYS(sys_statfs64 , 3) /* 4255 */
1865: MIPS_SYS(sys_fstatfs64 , 2)
1866: MIPS_SYS(sys_timer_create, 3)
1867: MIPS_SYS(sys_timer_settime, 4)
1868: MIPS_SYS(sys_timer_gettime, 2)
1869: MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
1870: MIPS_SYS(sys_timer_delete, 1)
1871: MIPS_SYS(sys_clock_settime, 2)
1872: MIPS_SYS(sys_clock_gettime, 2)
1873: MIPS_SYS(sys_clock_getres, 2)
1874: MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
1875: MIPS_SYS(sys_tgkill , 3)
1876: MIPS_SYS(sys_utimes , 2)
1877: MIPS_SYS(sys_mbind , 4)
1878: MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
1879: MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
1880: MIPS_SYS(sys_mq_open , 4)
1881: MIPS_SYS(sys_mq_unlink , 1)
1882: MIPS_SYS(sys_mq_timedsend, 5)
1883: MIPS_SYS(sys_mq_timedreceive, 5)
1884: MIPS_SYS(sys_mq_notify , 2) /* 4275 */
1885: MIPS_SYS(sys_mq_getsetattr, 3)
1886: MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
1887: MIPS_SYS(sys_waitid , 4)
1888: MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
1889: MIPS_SYS(sys_add_key , 5)
1.1.1.6 root 1890: MIPS_SYS(sys_request_key, 4)
1.1.1.2 root 1891: MIPS_SYS(sys_keyctl , 5)
1.1.1.6 root 1892: MIPS_SYS(sys_set_thread_area, 1)
1893: MIPS_SYS(sys_inotify_init, 0)
1894: MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
1895: MIPS_SYS(sys_inotify_rm_watch, 2)
1896: MIPS_SYS(sys_migrate_pages, 4)
1897: MIPS_SYS(sys_openat, 4)
1898: MIPS_SYS(sys_mkdirat, 3)
1899: MIPS_SYS(sys_mknodat, 4) /* 4290 */
1900: MIPS_SYS(sys_fchownat, 5)
1901: MIPS_SYS(sys_futimesat, 3)
1902: MIPS_SYS(sys_fstatat64, 4)
1903: MIPS_SYS(sys_unlinkat, 3)
1904: MIPS_SYS(sys_renameat, 4) /* 4295 */
1905: MIPS_SYS(sys_linkat, 5)
1906: MIPS_SYS(sys_symlinkat, 3)
1907: MIPS_SYS(sys_readlinkat, 4)
1908: MIPS_SYS(sys_fchmodat, 3)
1909: MIPS_SYS(sys_faccessat, 3) /* 4300 */
1910: MIPS_SYS(sys_pselect6, 6)
1911: MIPS_SYS(sys_ppoll, 5)
1912: MIPS_SYS(sys_unshare, 1)
1913: MIPS_SYS(sys_splice, 4)
1914: MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
1915: MIPS_SYS(sys_tee, 4)
1916: MIPS_SYS(sys_vmsplice, 4)
1917: MIPS_SYS(sys_move_pages, 6)
1918: MIPS_SYS(sys_set_robust_list, 2)
1919: MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
1920: MIPS_SYS(sys_kexec_load, 4)
1921: MIPS_SYS(sys_getcpu, 3)
1922: MIPS_SYS(sys_epoll_pwait, 6)
1923: MIPS_SYS(sys_ioprio_set, 3)
1924: MIPS_SYS(sys_ioprio_get, 2)
1.1.1.2 root 1925: };
1926:
1927: #undef MIPS_SYS
1928:
1.1.1.8 root 1929: static int do_store_exclusive(CPUMIPSState *env)
1930: {
1931: target_ulong addr;
1932: target_ulong page_addr;
1933: target_ulong val;
1934: int flags;
1935: int segv = 0;
1936: int reg;
1937: int d;
1938:
1.1.1.9 root 1939: addr = env->lladdr;
1.1.1.8 root 1940: page_addr = addr & TARGET_PAGE_MASK;
1941: start_exclusive();
1942: mmap_lock();
1943: flags = page_get_flags(page_addr);
1944: if ((flags & PAGE_READ) == 0) {
1945: segv = 1;
1946: } else {
1947: reg = env->llreg & 0x1f;
1948: d = (env->llreg & 0x20) != 0;
1949: if (d) {
1950: segv = get_user_s64(val, addr);
1951: } else {
1952: segv = get_user_s32(val, addr);
1953: }
1954: if (!segv) {
1955: if (val != env->llval) {
1956: env->active_tc.gpr[reg] = 0;
1957: } else {
1958: if (d) {
1959: segv = put_user_u64(env->llnewval, addr);
1960: } else {
1961: segv = put_user_u32(env->llnewval, addr);
1962: }
1963: if (!segv) {
1964: env->active_tc.gpr[reg] = 1;
1965: }
1966: }
1967: }
1968: }
1.1.1.9 root 1969: env->lladdr = -1;
1.1.1.8 root 1970: if (!segv) {
1971: env->active_tc.PC += 4;
1972: }
1973: mmap_unlock();
1974: end_exclusive();
1975: return segv;
1976: }
1977:
1.1.1.2 root 1978: void cpu_loop(CPUMIPSState *env)
1979: {
1980: target_siginfo_t info;
1.1.1.6 root 1981: int trapnr, ret;
1.1.1.2 root 1982: unsigned int syscall_num;
1983:
1984: for(;;) {
1.1.1.8 root 1985: cpu_exec_start(env);
1.1.1.2 root 1986: trapnr = cpu_mips_exec(env);
1.1.1.8 root 1987: cpu_exec_end(env);
1.1.1.2 root 1988: switch(trapnr) {
1989: case EXCP_SYSCALL:
1.1.1.7 root 1990: syscall_num = env->active_tc.gpr[2] - 4000;
1991: env->active_tc.PC += 4;
1.1.1.6 root 1992: if (syscall_num >= sizeof(mips_syscall_args)) {
1993: ret = -ENOSYS;
1994: } else {
1995: int nb_args;
1996: abi_ulong sp_reg;
1997: abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
1998:
1999: nb_args = mips_syscall_args[syscall_num];
1.1.1.7 root 2000: sp_reg = env->active_tc.gpr[29];
1.1.1.6 root 2001: switch (nb_args) {
2002: /* these arguments are taken from the stack */
2003: /* FIXME - what to do if get_user() fails? */
2004: case 8: get_user_ual(arg8, sp_reg + 28);
2005: case 7: get_user_ual(arg7, sp_reg + 24);
2006: case 6: get_user_ual(arg6, sp_reg + 20);
2007: case 5: get_user_ual(arg5, sp_reg + 16);
2008: default:
2009: break;
1.1.1.2 root 2010: }
1.1.1.7 root 2011: ret = do_syscall(env, env->active_tc.gpr[2],
2012: env->active_tc.gpr[4],
2013: env->active_tc.gpr[5],
2014: env->active_tc.gpr[6],
2015: env->active_tc.gpr[7],
1.1.1.6 root 2016: arg5, arg6/*, arg7, arg8*/);
2017: }
1.1.1.8 root 2018: if (ret == -TARGET_QEMU_ESIGRETURN) {
2019: /* Returning from a successful sigreturn syscall.
2020: Avoid clobbering register state. */
2021: break;
2022: }
1.1.1.6 root 2023: if ((unsigned int)ret >= (unsigned int)(-1133)) {
1.1.1.7 root 2024: env->active_tc.gpr[7] = 1; /* error flag */
1.1.1.6 root 2025: ret = -ret;
2026: } else {
1.1.1.7 root 2027: env->active_tc.gpr[7] = 0; /* error flag */
1.1.1.2 root 2028: }
1.1.1.7 root 2029: env->active_tc.gpr[2] = ret;
1.1.1.2 root 2030: break;
1.1.1.5 root 2031: case EXCP_TLBL:
2032: case EXCP_TLBS:
1.1.1.8 root 2033: info.si_signo = TARGET_SIGSEGV;
2034: info.si_errno = 0;
2035: /* XXX: check env->error_code */
2036: info.si_code = TARGET_SEGV_MAPERR;
2037: info._sifields._sigfault._addr = env->CP0_BadVAddr;
2038: queue_signal(env, info.si_signo, &info);
2039: break;
1.1.1.2 root 2040: case EXCP_CpU:
2041: case EXCP_RI:
1.1.1.4 root 2042: info.si_signo = TARGET_SIGILL;
2043: info.si_errno = 0;
2044: info.si_code = 0;
1.1.1.7 root 2045: queue_signal(env, info.si_signo, &info);
1.1.1.4 root 2046: break;
2047: case EXCP_INTERRUPT:
2048: /* just indicate that signals should be handled asap */
1.1.1.2 root 2049: break;
1.1.1.5 root 2050: case EXCP_DEBUG:
2051: {
2052: int sig;
2053:
2054: sig = gdb_handlesig (env, TARGET_SIGTRAP);
2055: if (sig)
2056: {
2057: info.si_signo = sig;
2058: info.si_errno = 0;
2059: info.si_code = TARGET_TRAP_BRKPT;
1.1.1.7 root 2060: queue_signal(env, info.si_signo, &info);
1.1.1.5 root 2061: }
2062: }
2063: break;
1.1.1.8 root 2064: case EXCP_SC:
2065: if (do_store_exclusive(env)) {
2066: info.si_signo = TARGET_SIGSEGV;
2067: info.si_errno = 0;
2068: info.si_code = TARGET_SEGV_MAPERR;
2069: info._sifields._sigfault._addr = env->active_tc.PC;
2070: queue_signal(env, info.si_signo, &info);
2071: }
2072: break;
1.1.1.2 root 2073: default:
2074: // error:
1.1.1.6 root 2075: fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1.1.1.2 root 2076: trapnr);
2077: cpu_dump_state(env, stderr, fprintf, 0);
2078: abort();
2079: }
2080: process_pending_signals(env);
2081: }
2082: }
2083: #endif
2084:
1.1.1.3 root 2085: #ifdef TARGET_SH4
2086: void cpu_loop (CPUState *env)
2087: {
2088: int trapnr, ret;
1.1.1.4 root 2089: target_siginfo_t info;
1.1.1.6 root 2090:
1.1.1.3 root 2091: while (1) {
2092: trapnr = cpu_sh4_exec (env);
1.1.1.6 root 2093:
1.1.1.3 root 2094: switch (trapnr) {
2095: case 0x160:
1.1.1.7 root 2096: env->pc += 2;
1.1.1.6 root 2097: ret = do_syscall(env,
2098: env->gregs[3],
2099: env->gregs[4],
2100: env->gregs[5],
2101: env->gregs[6],
2102: env->gregs[7],
2103: env->gregs[0],
2104: env->gregs[1]);
1.1.1.4 root 2105: env->gregs[0] = ret;
1.1.1.3 root 2106: break;
1.1.1.6 root 2107: case EXCP_INTERRUPT:
2108: /* just indicate that signals should be handled asap */
2109: break;
2110: case EXCP_DEBUG:
2111: {
2112: int sig;
2113:
2114: sig = gdb_handlesig (env, TARGET_SIGTRAP);
2115: if (sig)
2116: {
2117: info.si_signo = sig;
2118: info.si_errno = 0;
2119: info.si_code = TARGET_TRAP_BRKPT;
1.1.1.7 root 2120: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 2121: }
2122: }
2123: break;
2124: case 0xa0:
2125: case 0xc0:
2126: info.si_signo = SIGSEGV;
2127: info.si_errno = 0;
2128: info.si_code = TARGET_SEGV_MAPERR;
2129: info._sifields._sigfault._addr = env->tea;
1.1.1.7 root 2130: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 2131: break;
2132:
2133: default:
2134: printf ("Unhandled trap: 0x%x\n", trapnr);
2135: cpu_dump_state(env, stderr, fprintf, 0);
2136: exit (1);
2137: }
2138: process_pending_signals (env);
2139: }
2140: }
2141: #endif
2142:
2143: #ifdef TARGET_CRIS
2144: void cpu_loop (CPUState *env)
2145: {
2146: int trapnr, ret;
2147: target_siginfo_t info;
2148:
2149: while (1) {
2150: trapnr = cpu_cris_exec (env);
2151: switch (trapnr) {
2152: case 0xaa:
2153: {
2154: info.si_signo = SIGSEGV;
2155: info.si_errno = 0;
2156: /* XXX: check env->error_code */
2157: info.si_code = TARGET_SEGV_MAPERR;
1.1.1.7 root 2158: info._sifields._sigfault._addr = env->pregs[PR_EDA];
2159: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 2160: }
2161: break;
1.1.1.7 root 2162: case EXCP_INTERRUPT:
2163: /* just indicate that signals should be handled asap */
2164: break;
1.1.1.6 root 2165: case EXCP_BREAK:
2166: ret = do_syscall(env,
2167: env->regs[9],
2168: env->regs[10],
2169: env->regs[11],
2170: env->regs[12],
2171: env->regs[13],
2172: env->pregs[7],
2173: env->pregs[11]);
2174: env->regs[10] = ret;
2175: break;
1.1.1.4 root 2176: case EXCP_DEBUG:
2177: {
2178: int sig;
2179:
2180: sig = gdb_handlesig (env, TARGET_SIGTRAP);
2181: if (sig)
2182: {
2183: info.si_signo = sig;
2184: info.si_errno = 0;
2185: info.si_code = TARGET_TRAP_BRKPT;
1.1.1.7 root 2186: queue_signal(env, info.si_signo, &info);
1.1.1.4 root 2187: }
2188: }
2189: break;
1.1.1.3 root 2190: default:
2191: printf ("Unhandled trap: 0x%x\n", trapnr);
2192: cpu_dump_state(env, stderr, fprintf, 0);
2193: exit (1);
2194: }
2195: process_pending_signals (env);
2196: }
2197: }
2198: #endif
2199:
1.1.1.8 root 2200: #ifdef TARGET_MICROBLAZE
2201: void cpu_loop (CPUState *env)
2202: {
2203: int trapnr, ret;
2204: target_siginfo_t info;
2205:
2206: while (1) {
2207: trapnr = cpu_mb_exec (env);
2208: switch (trapnr) {
2209: case 0xaa:
2210: {
2211: info.si_signo = SIGSEGV;
2212: info.si_errno = 0;
2213: /* XXX: check env->error_code */
2214: info.si_code = TARGET_SEGV_MAPERR;
2215: info._sifields._sigfault._addr = 0;
2216: queue_signal(env, info.si_signo, &info);
2217: }
2218: break;
2219: case EXCP_INTERRUPT:
2220: /* just indicate that signals should be handled asap */
2221: break;
2222: case EXCP_BREAK:
2223: /* Return address is 4 bytes after the call. */
2224: env->regs[14] += 4;
2225: ret = do_syscall(env,
2226: env->regs[12],
2227: env->regs[5],
2228: env->regs[6],
2229: env->regs[7],
2230: env->regs[8],
2231: env->regs[9],
2232: env->regs[10]);
2233: env->regs[3] = ret;
2234: env->sregs[SR_PC] = env->regs[14];
2235: break;
2236: case EXCP_DEBUG:
2237: {
2238: int sig;
2239:
2240: sig = gdb_handlesig (env, TARGET_SIGTRAP);
2241: if (sig)
2242: {
2243: info.si_signo = sig;
2244: info.si_errno = 0;
2245: info.si_code = TARGET_TRAP_BRKPT;
2246: queue_signal(env, info.si_signo, &info);
2247: }
2248: }
2249: break;
2250: default:
2251: printf ("Unhandled trap: 0x%x\n", trapnr);
2252: cpu_dump_state(env, stderr, fprintf, 0);
2253: exit (1);
2254: }
2255: process_pending_signals (env);
2256: }
2257: }
2258: #endif
2259:
1.1.1.5 root 2260: #ifdef TARGET_M68K
2261:
2262: void cpu_loop(CPUM68KState *env)
2263: {
2264: int trapnr;
2265: unsigned int n;
2266: target_siginfo_t info;
2267: TaskState *ts = env->opaque;
1.1.1.6 root 2268:
1.1.1.5 root 2269: for(;;) {
2270: trapnr = cpu_m68k_exec(env);
2271: switch(trapnr) {
2272: case EXCP_ILLEGAL:
2273: {
2274: if (ts->sim_syscalls) {
2275: uint16_t nr;
2276: nr = lduw(env->pc + 2);
2277: env->pc += 4;
2278: do_m68k_simcall(env, nr);
2279: } else {
2280: goto do_sigill;
2281: }
2282: }
2283: break;
1.1.1.6 root 2284: case EXCP_HALT_INSN:
1.1.1.5 root 2285: /* Semihosing syscall. */
1.1.1.6 root 2286: env->pc += 4;
1.1.1.5 root 2287: do_m68k_semihosting(env, env->dregs[0]);
2288: break;
2289: case EXCP_LINEA:
2290: case EXCP_LINEF:
2291: case EXCP_UNSUPPORTED:
2292: do_sigill:
2293: info.si_signo = SIGILL;
2294: info.si_errno = 0;
2295: info.si_code = TARGET_ILL_ILLOPN;
2296: info._sifields._sigfault._addr = env->pc;
1.1.1.7 root 2297: queue_signal(env, info.si_signo, &info);
1.1.1.5 root 2298: break;
2299: case EXCP_TRAP0:
2300: {
2301: ts->sim_syscalls = 0;
2302: n = env->dregs[0];
2303: env->pc += 2;
1.1.1.6 root 2304: env->dregs[0] = do_syscall(env,
2305: n,
1.1.1.5 root 2306: env->dregs[1],
2307: env->dregs[2],
2308: env->dregs[3],
2309: env->dregs[4],
2310: env->dregs[5],
1.1.1.7 root 2311: env->aregs[0]);
1.1.1.5 root 2312: }
2313: break;
2314: case EXCP_INTERRUPT:
2315: /* just indicate that signals should be handled asap */
2316: break;
2317: case EXCP_ACCESS:
2318: {
2319: info.si_signo = SIGSEGV;
2320: info.si_errno = 0;
2321: /* XXX: check env->error_code */
2322: info.si_code = TARGET_SEGV_MAPERR;
2323: info._sifields._sigfault._addr = env->mmu.ar;
1.1.1.7 root 2324: queue_signal(env, info.si_signo, &info);
1.1.1.5 root 2325: }
2326: break;
2327: case EXCP_DEBUG:
2328: {
2329: int sig;
2330:
2331: sig = gdb_handlesig (env, TARGET_SIGTRAP);
2332: if (sig)
2333: {
2334: info.si_signo = sig;
2335: info.si_errno = 0;
2336: info.si_code = TARGET_TRAP_BRKPT;
1.1.1.7 root 2337: queue_signal(env, info.si_signo, &info);
1.1.1.5 root 2338: }
2339: }
2340: break;
2341: default:
1.1.1.6 root 2342: fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1.1.1.5 root 2343: trapnr);
2344: cpu_dump_state(env, stderr, fprintf, 0);
2345: abort();
2346: }
2347: process_pending_signals(env);
2348: }
2349: }
2350: #endif /* TARGET_M68K */
2351:
1.1.1.6 root 2352: #ifdef TARGET_ALPHA
1.1.1.11! root 2353: static void do_store_exclusive(CPUAlphaState *env, int reg, int quad)
! 2354: {
! 2355: target_ulong addr, val, tmp;
! 2356: target_siginfo_t info;
! 2357: int ret = 0;
! 2358:
! 2359: addr = env->lock_addr;
! 2360: tmp = env->lock_st_addr;
! 2361: env->lock_addr = -1;
! 2362: env->lock_st_addr = 0;
! 2363:
! 2364: start_exclusive();
! 2365: mmap_lock();
! 2366:
! 2367: if (addr == tmp) {
! 2368: if (quad ? get_user_s64(val, addr) : get_user_s32(val, addr)) {
! 2369: goto do_sigsegv;
! 2370: }
! 2371:
! 2372: if (val == env->lock_value) {
! 2373: tmp = env->ir[reg];
! 2374: if (quad ? put_user_u64(tmp, addr) : put_user_u32(tmp, addr)) {
! 2375: goto do_sigsegv;
! 2376: }
! 2377: ret = 1;
! 2378: }
! 2379: }
! 2380: env->ir[reg] = ret;
! 2381: env->pc += 4;
! 2382:
! 2383: mmap_unlock();
! 2384: end_exclusive();
! 2385: return;
! 2386:
! 2387: do_sigsegv:
! 2388: mmap_unlock();
! 2389: end_exclusive();
! 2390:
! 2391: info.si_signo = TARGET_SIGSEGV;
! 2392: info.si_errno = 0;
! 2393: info.si_code = TARGET_SEGV_MAPERR;
! 2394: info._sifields._sigfault._addr = addr;
! 2395: queue_signal(env, TARGET_SIGSEGV, &info);
! 2396: }
! 2397:
1.1.1.6 root 2398: void cpu_loop (CPUState *env)
2399: {
2400: int trapnr;
2401: target_siginfo_t info;
1.1.1.11! root 2402: abi_long sysret;
1.1.1.6 root 2403:
2404: while (1) {
2405: trapnr = cpu_alpha_exec (env);
2406:
1.1.1.11! root 2407: /* All of the traps imply a transition through PALcode, which
! 2408: implies an REI instruction has been executed. Which means
! 2409: that the intr_flag should be cleared. */
! 2410: env->intr_flag = 0;
! 2411:
1.1.1.6 root 2412: switch (trapnr) {
2413: case EXCP_RESET:
2414: fprintf(stderr, "Reset requested. Exit\n");
2415: exit(1);
2416: break;
2417: case EXCP_MCHK:
2418: fprintf(stderr, "Machine check exception. Exit\n");
2419: exit(1);
2420: break;
2421: case EXCP_ARITH:
1.1.1.11! root 2422: env->lock_addr = -1;
! 2423: info.si_signo = TARGET_SIGFPE;
! 2424: info.si_errno = 0;
! 2425: info.si_code = TARGET_FPE_FLTINV;
! 2426: info._sifields._sigfault._addr = env->pc;
! 2427: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 2428: break;
2429: case EXCP_HW_INTERRUPT:
2430: fprintf(stderr, "External interrupt. Exit\n");
2431: exit(1);
2432: break;
2433: case EXCP_DFAULT:
1.1.1.11! root 2434: env->lock_addr = -1;
! 2435: info.si_signo = TARGET_SIGSEGV;
! 2436: info.si_errno = 0;
! 2437: info.si_code = (page_get_flags(env->ipr[IPR_EXC_ADDR]) & PAGE_VALID
! 2438: ? TARGET_SEGV_ACCERR : TARGET_SEGV_MAPERR);
! 2439: info._sifields._sigfault._addr = env->ipr[IPR_EXC_ADDR];
! 2440: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 2441: break;
2442: case EXCP_DTB_MISS_PAL:
2443: fprintf(stderr, "MMU data TLB miss in PALcode\n");
2444: exit(1);
2445: break;
2446: case EXCP_ITB_MISS:
2447: fprintf(stderr, "MMU instruction TLB miss\n");
2448: exit(1);
2449: break;
2450: case EXCP_ITB_ACV:
2451: fprintf(stderr, "MMU instruction access violation\n");
2452: exit(1);
2453: break;
2454: case EXCP_DTB_MISS_NATIVE:
2455: fprintf(stderr, "MMU data TLB miss\n");
2456: exit(1);
2457: break;
2458: case EXCP_UNALIGN:
1.1.1.11! root 2459: env->lock_addr = -1;
! 2460: info.si_signo = TARGET_SIGBUS;
! 2461: info.si_errno = 0;
! 2462: info.si_code = TARGET_BUS_ADRALN;
! 2463: info._sifields._sigfault._addr = env->ipr[IPR_EXC_ADDR];
! 2464: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 2465: break;
2466: case EXCP_OPCDEC:
1.1.1.11! root 2467: do_sigill:
! 2468: env->lock_addr = -1;
! 2469: info.si_signo = TARGET_SIGILL;
! 2470: info.si_errno = 0;
! 2471: info.si_code = TARGET_ILL_ILLOPC;
! 2472: info._sifields._sigfault._addr = env->pc;
! 2473: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 2474: break;
2475: case EXCP_FEN:
1.1.1.11! root 2476: /* No-op. Linux simply re-enables the FPU. */
1.1.1.6 root 2477: break;
2478: case EXCP_CALL_PAL ... (EXCP_CALL_PALP - 1):
1.1.1.11! root 2479: env->lock_addr = -1;
! 2480: switch ((trapnr >> 6) | 0x80) {
! 2481: case 0x80:
! 2482: /* BPT */
! 2483: info.si_signo = TARGET_SIGTRAP;
! 2484: info.si_errno = 0;
! 2485: info.si_code = TARGET_TRAP_BRKPT;
! 2486: info._sifields._sigfault._addr = env->pc;
! 2487: queue_signal(env, info.si_signo, &info);
! 2488: break;
! 2489: case 0x81:
! 2490: /* BUGCHK */
! 2491: info.si_signo = TARGET_SIGTRAP;
! 2492: info.si_errno = 0;
! 2493: info.si_code = 0;
! 2494: info._sifields._sigfault._addr = env->pc;
! 2495: queue_signal(env, info.si_signo, &info);
! 2496: break;
! 2497: case 0x83:
! 2498: /* CALLSYS */
! 2499: trapnr = env->ir[IR_V0];
! 2500: sysret = do_syscall(env, trapnr,
! 2501: env->ir[IR_A0], env->ir[IR_A1],
! 2502: env->ir[IR_A2], env->ir[IR_A3],
! 2503: env->ir[IR_A4], env->ir[IR_A5]);
! 2504: if (trapnr == TARGET_NR_sigreturn
! 2505: || trapnr == TARGET_NR_rt_sigreturn) {
! 2506: break;
! 2507: }
! 2508: /* Syscall writes 0 to V0 to bypass error check, similar
! 2509: to how this is handled internal to Linux kernel. */
! 2510: if (env->ir[IR_V0] == 0) {
! 2511: env->ir[IR_V0] = sysret;
! 2512: } else {
! 2513: env->ir[IR_V0] = (sysret < 0 ? -sysret : sysret);
! 2514: env->ir[IR_A3] = (sysret < 0);
! 2515: }
! 2516: break;
! 2517: case 0x86:
! 2518: /* IMB */
! 2519: /* ??? We can probably elide the code using page_unprotect
! 2520: that is checking for self-modifying code. Instead we
! 2521: could simply call tb_flush here. Until we work out the
! 2522: changes required to turn off the extra write protection,
! 2523: this can be a no-op. */
! 2524: break;
! 2525: case 0x9E:
! 2526: /* RDUNIQUE */
! 2527: /* Handled in the translator for usermode. */
! 2528: abort();
! 2529: case 0x9F:
! 2530: /* WRUNIQUE */
! 2531: /* Handled in the translator for usermode. */
! 2532: abort();
! 2533: case 0xAA:
! 2534: /* GENTRAP */
! 2535: info.si_signo = TARGET_SIGFPE;
! 2536: switch (env->ir[IR_A0]) {
! 2537: case TARGET_GEN_INTOVF:
! 2538: info.si_code = TARGET_FPE_INTOVF;
! 2539: break;
! 2540: case TARGET_GEN_INTDIV:
! 2541: info.si_code = TARGET_FPE_INTDIV;
! 2542: break;
! 2543: case TARGET_GEN_FLTOVF:
! 2544: info.si_code = TARGET_FPE_FLTOVF;
! 2545: break;
! 2546: case TARGET_GEN_FLTUND:
! 2547: info.si_code = TARGET_FPE_FLTUND;
! 2548: break;
! 2549: case TARGET_GEN_FLTINV:
! 2550: info.si_code = TARGET_FPE_FLTINV;
! 2551: break;
! 2552: case TARGET_GEN_FLTINE:
! 2553: info.si_code = TARGET_FPE_FLTRES;
! 2554: break;
! 2555: case TARGET_GEN_ROPRAND:
! 2556: info.si_code = 0;
! 2557: break;
! 2558: default:
! 2559: info.si_signo = TARGET_SIGTRAP;
! 2560: info.si_code = 0;
! 2561: break;
! 2562: }
! 2563: info.si_errno = 0;
! 2564: info._sifields._sigfault._addr = env->pc;
! 2565: queue_signal(env, info.si_signo, &info);
! 2566: break;
! 2567: default:
! 2568: goto do_sigill;
! 2569: }
1.1.1.6 root 2570: break;
2571: case EXCP_CALL_PALP ... (EXCP_CALL_PALE - 1):
1.1.1.11! root 2572: goto do_sigill;
1.1.1.6 root 2573: case EXCP_DEBUG:
1.1.1.11! root 2574: info.si_signo = gdb_handlesig (env, TARGET_SIGTRAP);
! 2575: if (info.si_signo) {
! 2576: env->lock_addr = -1;
! 2577: info.si_errno = 0;
! 2578: info.si_code = TARGET_TRAP_BRKPT;
! 2579: queue_signal(env, info.si_signo, &info);
1.1.1.6 root 2580: }
2581: break;
1.1.1.11! root 2582: case EXCP_STL_C:
! 2583: case EXCP_STQ_C:
! 2584: do_store_exclusive(env, env->error_code, trapnr - EXCP_STL_C);
! 2585: break;
1.1.1.6 root 2586: default:
2587: printf ("Unhandled trap: 0x%x\n", trapnr);
2588: cpu_dump_state(env, stderr, fprintf, 0);
2589: exit (1);
2590: }
2591: process_pending_signals (env);
2592: }
2593: }
2594: #endif /* TARGET_ALPHA */
2595:
1.1.1.7 root 2596: static void usage(void)
1.1 root 2597: {
1.1.1.8 root 2598: printf("qemu-" TARGET_ARCH " version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n"
1.1.1.6 root 2599: "usage: qemu-" TARGET_ARCH " [options] program [arguments...]\n"
1.1 root 2600: "Linux CPU emulator (compiled for %s emulation)\n"
2601: "\n"
1.1.1.6 root 2602: "Standard options:\n"
2603: "-h print this help\n"
2604: "-g port wait gdb connection to port\n"
2605: "-L path set the elf interpreter prefix (default=%s)\n"
2606: "-s size set the stack size in bytes (default=%ld)\n"
2607: "-cpu model select CPU (-cpu ? for list)\n"
2608: "-drop-ld-preload drop LD_PRELOAD for target process\n"
1.1.1.7 root 2609: "-E var=value sets/modifies targets environment variable(s)\n"
2610: "-U var unsets targets environment variable(s)\n"
1.1.1.8 root 2611: "-0 argv0 forces target process argv[0] to be argv0\n"
1.1.1.9 root 2612: #if defined(CONFIG_USE_GUEST_BASE)
2613: "-B address set guest_base address to address\n"
1.1.1.11! root 2614: "-R size reserve size bytes for guest virtual address space\n"
1.1.1.9 root 2615: #endif
1.1 root 2616: "\n"
1.1.1.6 root 2617: "Debug options:\n"
1.1 root 2618: "-d options activate log (logfile=%s)\n"
1.1.1.6 root 2619: "-p pagesize set the host page size to 'pagesize'\n"
1.1.1.8 root 2620: "-singlestep always run in singlestep mode\n"
1.1.1.6 root 2621: "-strace log system calls\n"
2622: "\n"
2623: "Environment variables:\n"
2624: "QEMU_STRACE Print system calls and arguments similar to the\n"
2625: " 'strace' program. Enable by setting to any value.\n"
1.1.1.7 root 2626: "You can use -E and -U options to set/unset environment variables\n"
2627: "for target process. It is possible to provide several variables\n"
2628: "by repeating the option. For example:\n"
2629: " -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n"
2630: "Note that if you provide several changes to single variable\n"
2631: "last change will stay in effect.\n"
1.1.1.6 root 2632: ,
1.1 root 2633: TARGET_ARCH,
1.1.1.6 root 2634: interp_prefix,
1.1.1.11! root 2635: guest_stack_size,
1.1 root 2636: DEBUG_LOGFILE);
1.1.1.7 root 2637: exit(1);
1.1 root 2638: }
2639:
1.1.1.7 root 2640: THREAD CPUState *thread_env;
1.1 root 2641:
1.1.1.8 root 2642: void task_settid(TaskState *ts)
2643: {
2644: if (ts->ts_tid == 0) {
1.1.1.9 root 2645: #ifdef CONFIG_USE_NPTL
1.1.1.8 root 2646: ts->ts_tid = (pid_t)syscall(SYS_gettid);
2647: #else
2648: /* when no threads are used, tid becomes pid */
2649: ts->ts_tid = getpid();
2650: #endif
2651: }
2652: }
2653:
2654: void stop_all_tasks(void)
2655: {
2656: /*
2657: * We trust that when using NPTL, start_exclusive()
2658: * handles thread stopping correctly.
2659: */
2660: start_exclusive();
2661: }
2662:
1.1.1.7 root 2663: /* Assumes contents are already zeroed. */
2664: void init_task_state(TaskState *ts)
2665: {
2666: int i;
2667:
2668: ts->used = 1;
2669: ts->first_free = ts->sigqueue_table;
2670: for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) {
2671: ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1];
2672: }
2673: ts->sigqueue_table[i].next = NULL;
2674: }
2675:
2676: int main(int argc, char **argv, char **envp)
1.1 root 2677: {
2678: const char *filename;
1.1.1.6 root 2679: const char *cpu_model;
1.1 root 2680: struct target_pt_regs regs1, *regs = ®s1;
2681: struct image_info info1, *info = &info1;
1.1.1.8 root 2682: struct linux_binprm bprm;
1.1 root 2683: TaskState ts1, *ts = &ts1;
2684: CPUState *env;
2685: int optind;
2686: const char *r;
1.1.1.2 root 2687: int gdbstub_port = 0;
1.1.1.7 root 2688: char **target_environ, **wrk;
1.1.1.8 root 2689: char **target_argv;
2690: int target_argc;
1.1.1.7 root 2691: envlist_t *envlist = NULL;
1.1.1.8 root 2692: const char *argv0 = NULL;
2693: int i;
2694: int ret;
1.1.1.6 root 2695:
1.1 root 2696: if (argc <= 1)
2697: usage();
2698:
1.1.1.7 root 2699: qemu_cache_utils_init(envp);
2700:
1.1 root 2701: /* init debug */
2702: cpu_set_log_filename(DEBUG_LOGFILE);
2703:
1.1.1.7 root 2704: if ((envlist = envlist_create()) == NULL) {
2705: (void) fprintf(stderr, "Unable to allocate envlist\n");
2706: exit(1);
2707: }
2708:
2709: /* add current environment into the list */
2710: for (wrk = environ; *wrk != NULL; wrk++) {
2711: (void) envlist_setenv(envlist, *wrk);
2712: }
2713:
1.1.1.11! root 2714: /* Read the stack limit from the kernel. If it's "unlimited",
! 2715: then we can do little else besides use the default. */
! 2716: {
! 2717: struct rlimit lim;
! 2718: if (getrlimit(RLIMIT_STACK, &lim) == 0
! 2719: && lim.rlim_cur != RLIM_INFINITY
! 2720: && lim.rlim_cur == (target_long)lim.rlim_cur) {
! 2721: guest_stack_size = lim.rlim_cur;
! 2722: }
! 2723: }
! 2724:
1.1.1.6 root 2725: cpu_model = NULL;
1.1.1.11! root 2726: #if defined(cpudef_setup)
! 2727: cpudef_setup(); /* parse cpu definitions in target config file (TBD) */
! 2728: #endif
! 2729:
1.1 root 2730: optind = 1;
2731: for(;;) {
2732: if (optind >= argc)
2733: break;
2734: r = argv[optind];
2735: if (r[0] != '-')
2736: break;
2737: optind++;
2738: r++;
2739: if (!strcmp(r, "-")) {
2740: break;
2741: } else if (!strcmp(r, "d")) {
2742: int mask;
1.1.1.7 root 2743: const CPULogItem *item;
1.1 root 2744:
2745: if (optind >= argc)
2746: break;
1.1.1.6 root 2747:
1.1 root 2748: r = argv[optind++];
2749: mask = cpu_str_to_log_mask(r);
2750: if (!mask) {
2751: printf("Log items (comma separated):\n");
2752: for(item = cpu_log_items; item->mask != 0; item++) {
2753: printf("%-10s %s\n", item->name, item->help);
2754: }
2755: exit(1);
2756: }
2757: cpu_set_log(mask);
1.1.1.7 root 2758: } else if (!strcmp(r, "E")) {
2759: r = argv[optind++];
2760: if (envlist_setenv(envlist, r) != 0)
2761: usage();
2762: } else if (!strcmp(r, "U")) {
2763: r = argv[optind++];
2764: if (envlist_unsetenv(envlist, r) != 0)
2765: usage();
1.1.1.8 root 2766: } else if (!strcmp(r, "0")) {
2767: r = argv[optind++];
2768: argv0 = r;
1.1 root 2769: } else if (!strcmp(r, "s")) {
1.1.1.7 root 2770: if (optind >= argc)
2771: break;
1.1 root 2772: r = argv[optind++];
1.1.1.11! root 2773: guest_stack_size = strtoul(r, (char **)&r, 0);
! 2774: if (guest_stack_size == 0)
1.1 root 2775: usage();
2776: if (*r == 'M')
1.1.1.11! root 2777: guest_stack_size *= 1024 * 1024;
1.1 root 2778: else if (*r == 'k' || *r == 'K')
1.1.1.11! root 2779: guest_stack_size *= 1024;
1.1 root 2780: } else if (!strcmp(r, "L")) {
2781: interp_prefix = argv[optind++];
2782: } else if (!strcmp(r, "p")) {
1.1.1.7 root 2783: if (optind >= argc)
2784: break;
1.1 root 2785: qemu_host_page_size = atoi(argv[optind++]);
2786: if (qemu_host_page_size == 0 ||
2787: (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
2788: fprintf(stderr, "page size must be a power of two\n");
2789: exit(1);
2790: }
2791: } else if (!strcmp(r, "g")) {
1.1.1.7 root 2792: if (optind >= argc)
2793: break;
1.1.1.2 root 2794: gdbstub_port = atoi(argv[optind++]);
1.1.1.4 root 2795: } else if (!strcmp(r, "r")) {
2796: qemu_uname_release = argv[optind++];
1.1.1.6 root 2797: } else if (!strcmp(r, "cpu")) {
2798: cpu_model = argv[optind++];
1.1.1.7 root 2799: if (cpu_model == NULL || strcmp(cpu_model, "?") == 0) {
1.1.1.6 root 2800: /* XXX: implement xxx_cpu_list for targets that still miss it */
1.1.1.11! root 2801: #if defined(cpu_list_id)
! 2802: cpu_list_id(stdout, &fprintf, "");
! 2803: #elif defined(cpu_list)
! 2804: cpu_list(stdout, &fprintf); /* deprecated */
1.1.1.6 root 2805: #endif
1.1.1.7 root 2806: exit(1);
1.1.1.6 root 2807: }
1.1.1.9 root 2808: #if defined(CONFIG_USE_GUEST_BASE)
2809: } else if (!strcmp(r, "B")) {
2810: guest_base = strtol(argv[optind++], NULL, 0);
2811: have_guest_base = 1;
1.1.1.11! root 2812: } else if (!strcmp(r, "R")) {
! 2813: char *p;
! 2814: int shift = 0;
! 2815: reserved_va = strtoul(argv[optind++], &p, 0);
! 2816: switch (*p) {
! 2817: case 'k':
! 2818: case 'K':
! 2819: shift = 10;
! 2820: break;
! 2821: case 'M':
! 2822: shift = 20;
! 2823: break;
! 2824: case 'G':
! 2825: shift = 30;
! 2826: break;
! 2827: }
! 2828: if (shift) {
! 2829: unsigned long unshifted = reserved_va;
! 2830: p++;
! 2831: reserved_va <<= shift;
! 2832: if (((reserved_va >> shift) != unshifted)
! 2833: #if HOST_LONG_BITS > TARGET_VIRT_ADDR_SPACE_BITS
! 2834: || (reserved_va > (1ul << TARGET_VIRT_ADDR_SPACE_BITS))
! 2835: #endif
! 2836: ) {
! 2837: fprintf(stderr, "Reserved virtual address too big\n");
! 2838: exit(1);
! 2839: }
! 2840: }
! 2841: if (*p) {
! 2842: fprintf(stderr, "Unrecognised -R size suffix '%s'\n", p);
! 2843: exit(1);
! 2844: }
1.1.1.9 root 2845: #endif
1.1.1.6 root 2846: } else if (!strcmp(r, "drop-ld-preload")) {
1.1.1.7 root 2847: (void) envlist_unsetenv(envlist, "LD_PRELOAD");
1.1.1.8 root 2848: } else if (!strcmp(r, "singlestep")) {
2849: singlestep = 1;
1.1.1.6 root 2850: } else if (!strcmp(r, "strace")) {
2851: do_strace = 1;
2852: } else
1.1 root 2853: {
2854: usage();
2855: }
2856: }
2857: if (optind >= argc)
2858: usage();
2859: filename = argv[optind];
1.1.1.7 root 2860: exec_path = argv[optind];
1.1 root 2861:
2862: /* Zero out regs */
2863: memset(regs, 0, sizeof(struct target_pt_regs));
2864:
2865: /* Zero out image_info */
2866: memset(info, 0, sizeof(struct image_info));
2867:
1.1.1.8 root 2868: memset(&bprm, 0, sizeof (bprm));
2869:
1.1 root 2870: /* Scan interp_prefix dir for replacement files. */
2871: init_paths(interp_prefix);
2872:
1.1.1.6 root 2873: if (cpu_model == NULL) {
2874: #if defined(TARGET_I386)
2875: #ifdef TARGET_X86_64
2876: cpu_model = "qemu64";
2877: #else
2878: cpu_model = "qemu32";
2879: #endif
2880: #elif defined(TARGET_ARM)
1.1.1.8 root 2881: cpu_model = "any";
1.1.1.6 root 2882: #elif defined(TARGET_M68K)
2883: cpu_model = "any";
2884: #elif defined(TARGET_SPARC)
2885: #ifdef TARGET_SPARC64
2886: cpu_model = "TI UltraSparc II";
2887: #else
2888: cpu_model = "Fujitsu MB86904";
2889: #endif
2890: #elif defined(TARGET_MIPS)
2891: #if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64)
2892: cpu_model = "20Kc";
2893: #else
2894: cpu_model = "24Kf";
2895: #endif
2896: #elif defined(TARGET_PPC)
2897: #ifdef TARGET_PPC64
1.1.1.10 root 2898: cpu_model = "970fx";
1.1.1.6 root 2899: #else
2900: cpu_model = "750";
2901: #endif
2902: #else
2903: cpu_model = "any";
2904: #endif
2905: }
1.1.1.7 root 2906: cpu_exec_init_all(0);
1.1 root 2907: /* NOTE: we need to init the CPU at this stage to get
2908: qemu_host_page_size */
1.1.1.6 root 2909: env = cpu_init(cpu_model);
2910: if (!env) {
2911: fprintf(stderr, "Unable to find CPU definition\n");
2912: exit(1);
2913: }
1.1.1.9 root 2914: #if defined(TARGET_I386) || defined(TARGET_SPARC) || defined(TARGET_PPC)
2915: cpu_reset(env);
2916: #endif
2917:
1.1.1.7 root 2918: thread_env = env;
1.1.1.6 root 2919:
2920: if (getenv("QEMU_STRACE")) {
2921: do_strace = 1;
1.1 root 2922: }
1.1.1.6 root 2923:
1.1.1.7 root 2924: target_environ = envlist_to_environ(envlist, NULL);
2925: envlist_free(envlist);
1.1.1.6 root 2926:
1.1.1.9 root 2927: #if defined(CONFIG_USE_GUEST_BASE)
2928: /*
2929: * Now that page sizes are configured in cpu_init() we can do
2930: * proper page alignment for guest_base.
2931: */
2932: guest_base = HOST_PAGE_ALIGN(guest_base);
2933:
1.1.1.11! root 2934: if (reserved_va) {
! 2935: void *p;
! 2936: int flags;
! 2937:
! 2938: flags = MAP_ANONYMOUS | MAP_PRIVATE | MAP_NORESERVE;
! 2939: if (have_guest_base) {
! 2940: flags |= MAP_FIXED;
! 2941: }
! 2942: p = mmap((void *)guest_base, reserved_va, PROT_NONE, flags, -1, 0);
! 2943: if (p == MAP_FAILED) {
! 2944: fprintf(stderr, "Unable to reserve guest address space\n");
! 2945: exit(1);
! 2946: }
! 2947: guest_base = (unsigned long)p;
! 2948: /* Make sure the address is properly aligned. */
! 2949: if (guest_base & ~qemu_host_page_mask) {
! 2950: munmap(p, reserved_va);
! 2951: p = mmap((void *)guest_base, reserved_va + qemu_host_page_size,
! 2952: PROT_NONE, flags, -1, 0);
! 2953: if (p == MAP_FAILED) {
! 2954: fprintf(stderr, "Unable to reserve guest address space\n");
! 2955: exit(1);
! 2956: }
! 2957: guest_base = HOST_PAGE_ALIGN((unsigned long)p);
! 2958: }
! 2959: qemu_log("Reserved 0x%lx bytes of guest address space\n", reserved_va);
! 2960: }
! 2961: #endif /* CONFIG_USE_GUEST_BASE */
! 2962:
1.1.1.9 root 2963: /*
2964: * Read in mmap_min_addr kernel parameter. This value is used
2965: * When loading the ELF image to determine whether guest_base
1.1.1.11! root 2966: * is needed. It is also used in mmap_find_vma.
1.1.1.9 root 2967: */
1.1.1.11! root 2968: {
1.1.1.9 root 2969: FILE *fp;
2970:
2971: if ((fp = fopen("/proc/sys/vm/mmap_min_addr", "r")) != NULL) {
2972: unsigned long tmp;
2973: if (fscanf(fp, "%lu", &tmp) == 1) {
2974: mmap_min_addr = tmp;
2975: qemu_log("host mmap_min_addr=0x%lx\n", mmap_min_addr);
2976: }
2977: fclose(fp);
2978: }
2979: }
2980:
1.1.1.8 root 2981: /*
2982: * Prepare copy of argv vector for target.
2983: */
2984: target_argc = argc - optind;
2985: target_argv = calloc(target_argc + 1, sizeof (char *));
2986: if (target_argv == NULL) {
2987: (void) fprintf(stderr, "Unable to allocate memory for target_argv\n");
2988: exit(1);
2989: }
2990:
2991: /*
2992: * If argv0 is specified (using '-0' switch) we replace
2993: * argv[0] pointer with the given one.
2994: */
2995: i = 0;
2996: if (argv0 != NULL) {
2997: target_argv[i++] = strdup(argv0);
2998: }
2999: for (; i < target_argc; i++) {
3000: target_argv[i] = strdup(argv[optind + i]);
3001: }
3002: target_argv[target_argc] = NULL;
3003:
3004: memset(ts, 0, sizeof(TaskState));
3005: init_task_state(ts);
3006: /* build Task State */
3007: ts->info = info;
3008: ts->bprm = &bprm;
3009: env->opaque = ts;
3010: task_settid(ts);
3011:
3012: ret = loader_exec(filename, target_argv, target_environ, regs,
3013: info, &bprm);
3014: if (ret != 0) {
3015: printf("Error %d while loading %s\n", ret, filename);
1.1.1.6 root 3016: _exit(1);
3017: }
3018:
1.1.1.8 root 3019: for (i = 0; i < target_argc; i++) {
3020: free(target_argv[i]);
3021: }
3022: free(target_argv);
3023:
1.1.1.6 root 3024: for (wrk = target_environ; *wrk; wrk++) {
3025: free(*wrk);
3026: }
3027:
3028: free(target_environ);
3029:
1.1.1.7 root 3030: if (qemu_log_enabled()) {
1.1.1.9 root 3031: #if defined(CONFIG_USE_GUEST_BASE)
3032: qemu_log("guest_base 0x%lx\n", guest_base);
3033: #endif
1.1.1.7 root 3034: log_page_dump();
1.1.1.6 root 3035:
1.1.1.7 root 3036: qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk);
3037: qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code);
3038: qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n",
3039: info->start_code);
3040: qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n",
3041: info->start_data);
3042: qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data);
3043: qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n",
3044: info->start_stack);
3045: qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk);
3046: qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry);
1.1 root 3047: }
3048:
1.1.1.3 root 3049: target_set_brk(info->brk);
1.1 root 3050: syscall_init();
3051: signal_init();
3052:
1.1.1.11! root 3053: #if defined(CONFIG_USE_GUEST_BASE)
! 3054: /* Now that we've loaded the binary, GUEST_BASE is fixed. Delay
! 3055: generating the prologue until now so that the prologue can take
! 3056: the real value of GUEST_BASE into account. */
! 3057: tcg_prologue_init(&tcg_ctx);
! 3058: #endif
! 3059:
1.1 root 3060: #if defined(TARGET_I386)
3061: cpu_x86_set_cpl(env, 3);
3062:
3063: env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
3064: env->hflags |= HF_PE_MASK;
3065: if (env->cpuid_features & CPUID_SSE) {
3066: env->cr[4] |= CR4_OSFXSR_MASK;
3067: env->hflags |= HF_OSFXSR_MASK;
3068: }
1.1.1.6 root 3069: #ifndef TARGET_ABI32
3070: /* enable 64 bit mode if possible */
3071: if (!(env->cpuid_ext2_features & CPUID_EXT2_LM)) {
3072: fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n");
3073: exit(1);
3074: }
3075: env->cr[4] |= CR4_PAE_MASK;
3076: env->efer |= MSR_EFER_LMA | MSR_EFER_LME;
3077: env->hflags |= HF_LMA_MASK;
3078: #endif
1.1 root 3079:
3080: /* flags setup : we activate the IRQs by default as in user mode */
3081: env->eflags |= IF_MASK;
1.1.1.6 root 3082:
1.1 root 3083: /* linux register setup */
1.1.1.6 root 3084: #ifndef TARGET_ABI32
3085: env->regs[R_EAX] = regs->rax;
3086: env->regs[R_EBX] = regs->rbx;
3087: env->regs[R_ECX] = regs->rcx;
3088: env->regs[R_EDX] = regs->rdx;
3089: env->regs[R_ESI] = regs->rsi;
3090: env->regs[R_EDI] = regs->rdi;
3091: env->regs[R_EBP] = regs->rbp;
3092: env->regs[R_ESP] = regs->rsp;
3093: env->eip = regs->rip;
3094: #else
1.1 root 3095: env->regs[R_EAX] = regs->eax;
3096: env->regs[R_EBX] = regs->ebx;
3097: env->regs[R_ECX] = regs->ecx;
3098: env->regs[R_EDX] = regs->edx;
3099: env->regs[R_ESI] = regs->esi;
3100: env->regs[R_EDI] = regs->edi;
3101: env->regs[R_EBP] = regs->ebp;
3102: env->regs[R_ESP] = regs->esp;
3103: env->eip = regs->eip;
1.1.1.6 root 3104: #endif
1.1 root 3105:
3106: /* linux interrupt setup */
1.1.1.7 root 3107: #ifndef TARGET_ABI32
3108: env->idt.limit = 511;
3109: #else
3110: env->idt.limit = 255;
3111: #endif
3112: env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1),
3113: PROT_READ|PROT_WRITE,
3114: MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3115: idt_table = g2h(env->idt.base);
1.1 root 3116: set_idt(0, 0);
3117: set_idt(1, 0);
3118: set_idt(2, 0);
3119: set_idt(3, 3);
3120: set_idt(4, 3);
1.1.1.7 root 3121: set_idt(5, 0);
1.1 root 3122: set_idt(6, 0);
3123: set_idt(7, 0);
3124: set_idt(8, 0);
3125: set_idt(9, 0);
3126: set_idt(10, 0);
3127: set_idt(11, 0);
3128: set_idt(12, 0);
3129: set_idt(13, 0);
3130: set_idt(14, 0);
3131: set_idt(15, 0);
3132: set_idt(16, 0);
3133: set_idt(17, 0);
3134: set_idt(18, 0);
3135: set_idt(19, 0);
3136: set_idt(0x80, 3);
3137:
3138: /* linux segment setup */
1.1.1.6 root 3139: {
3140: uint64_t *gdt_table;
1.1.1.7 root 3141: env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES,
3142: PROT_READ|PROT_WRITE,
3143: MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
1.1.1.6 root 3144: env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1;
1.1.1.7 root 3145: gdt_table = g2h(env->gdt.base);
1.1.1.6 root 3146: #ifdef TARGET_ABI32
3147: write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
3148: DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3149: (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
3150: #else
3151: /* 64 bit code segment */
3152: write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
3153: DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3154: DESC_L_MASK |
3155: (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
3156: #endif
3157: write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
3158: DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3159: (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
3160: }
1.1 root 3161: cpu_x86_load_seg(env, R_CS, __USER_CS);
1.1.1.6 root 3162: cpu_x86_load_seg(env, R_SS, __USER_DS);
3163: #ifdef TARGET_ABI32
1.1 root 3164: cpu_x86_load_seg(env, R_DS, __USER_DS);
3165: cpu_x86_load_seg(env, R_ES, __USER_DS);
3166: cpu_x86_load_seg(env, R_FS, __USER_DS);
3167: cpu_x86_load_seg(env, R_GS, __USER_DS);
1.1.1.6 root 3168: /* This hack makes Wine work... */
3169: env->segs[R_FS].selector = 0;
3170: #else
3171: cpu_x86_load_seg(env, R_DS, 0);
3172: cpu_x86_load_seg(env, R_ES, 0);
3173: cpu_x86_load_seg(env, R_FS, 0);
3174: cpu_x86_load_seg(env, R_GS, 0);
3175: #endif
1.1 root 3176: #elif defined(TARGET_ARM)
3177: {
3178: int i;
1.1.1.2 root 3179: cpsr_write(env, regs->uregs[16], 0xffffffff);
1.1 root 3180: for(i = 0; i < 16; i++) {
3181: env->regs[i] = regs->uregs[i];
3182: }
3183: }
3184: #elif defined(TARGET_SPARC)
3185: {
3186: int i;
3187: env->pc = regs->pc;
3188: env->npc = regs->npc;
3189: env->y = regs->y;
3190: for(i = 0; i < 8; i++)
3191: env->gregs[i] = regs->u_regs[i];
3192: for(i = 0; i < 8; i++)
3193: env->regwptr[i] = regs->u_regs[i + 8];
3194: }
3195: #elif defined(TARGET_PPC)
3196: {
3197: int i;
3198:
1.1.1.6 root 3199: #if defined(TARGET_PPC64)
3200: #if defined(TARGET_ABI32)
3201: env->msr &= ~((target_ulong)1 << MSR_SF);
3202: #else
3203: env->msr |= (target_ulong)1 << MSR_SF;
3204: #endif
3205: #endif
1.1 root 3206: env->nip = regs->nip;
3207: for(i = 0; i < 32; i++) {
3208: env->gpr[i] = regs->gpr[i];
3209: }
3210: }
1.1.1.5 root 3211: #elif defined(TARGET_M68K)
3212: {
3213: env->pc = regs->pc;
3214: env->dregs[0] = regs->d0;
3215: env->dregs[1] = regs->d1;
3216: env->dregs[2] = regs->d2;
3217: env->dregs[3] = regs->d3;
3218: env->dregs[4] = regs->d4;
3219: env->dregs[5] = regs->d5;
3220: env->dregs[6] = regs->d6;
3221: env->dregs[7] = regs->d7;
3222: env->aregs[0] = regs->a0;
3223: env->aregs[1] = regs->a1;
3224: env->aregs[2] = regs->a2;
3225: env->aregs[3] = regs->a3;
3226: env->aregs[4] = regs->a4;
3227: env->aregs[5] = regs->a5;
3228: env->aregs[6] = regs->a6;
3229: env->aregs[7] = regs->usp;
3230: env->sr = regs->sr;
3231: ts->sim_syscalls = 1;
3232: }
1.1.1.8 root 3233: #elif defined(TARGET_MICROBLAZE)
3234: {
3235: env->regs[0] = regs->r0;
3236: env->regs[1] = regs->r1;
3237: env->regs[2] = regs->r2;
3238: env->regs[3] = regs->r3;
3239: env->regs[4] = regs->r4;
3240: env->regs[5] = regs->r5;
3241: env->regs[6] = regs->r6;
3242: env->regs[7] = regs->r7;
3243: env->regs[8] = regs->r8;
3244: env->regs[9] = regs->r9;
3245: env->regs[10] = regs->r10;
3246: env->regs[11] = regs->r11;
3247: env->regs[12] = regs->r12;
3248: env->regs[13] = regs->r13;
3249: env->regs[14] = regs->r14;
3250: env->regs[15] = regs->r15;
3251: env->regs[16] = regs->r16;
3252: env->regs[17] = regs->r17;
3253: env->regs[18] = regs->r18;
3254: env->regs[19] = regs->r19;
3255: env->regs[20] = regs->r20;
3256: env->regs[21] = regs->r21;
3257: env->regs[22] = regs->r22;
3258: env->regs[23] = regs->r23;
3259: env->regs[24] = regs->r24;
3260: env->regs[25] = regs->r25;
3261: env->regs[26] = regs->r26;
3262: env->regs[27] = regs->r27;
3263: env->regs[28] = regs->r28;
3264: env->regs[29] = regs->r29;
3265: env->regs[30] = regs->r30;
3266: env->regs[31] = regs->r31;
3267: env->sregs[SR_PC] = regs->pc;
3268: }
1.1.1.2 root 3269: #elif defined(TARGET_MIPS)
3270: {
3271: int i;
3272:
3273: for(i = 0; i < 32; i++) {
1.1.1.7 root 3274: env->active_tc.gpr[i] = regs->regs[i];
1.1.1.2 root 3275: }
1.1.1.11! root 3276: env->active_tc.PC = regs->cp0_epc & ~(target_ulong)1;
! 3277: if (regs->cp0_epc & 1) {
! 3278: env->hflags |= MIPS_HFLAG_M16;
! 3279: }
1.1.1.2 root 3280: }
1.1.1.3 root 3281: #elif defined(TARGET_SH4)
3282: {
3283: int i;
3284:
3285: for(i = 0; i < 16; i++) {
3286: env->gregs[i] = regs->regs[i];
3287: }
3288: env->pc = regs->pc;
3289: }
1.1.1.6 root 3290: #elif defined(TARGET_ALPHA)
3291: {
3292: int i;
3293:
3294: for(i = 0; i < 28; i++) {
3295: env->ir[i] = ((abi_ulong *)regs)[i];
3296: }
1.1.1.11! root 3297: env->ir[IR_SP] = regs->usp;
1.1.1.6 root 3298: env->pc = regs->pc;
3299: }
3300: #elif defined(TARGET_CRIS)
3301: {
3302: env->regs[0] = regs->r0;
3303: env->regs[1] = regs->r1;
3304: env->regs[2] = regs->r2;
3305: env->regs[3] = regs->r3;
3306: env->regs[4] = regs->r4;
3307: env->regs[5] = regs->r5;
3308: env->regs[6] = regs->r6;
3309: env->regs[7] = regs->r7;
3310: env->regs[8] = regs->r8;
3311: env->regs[9] = regs->r9;
3312: env->regs[10] = regs->r10;
3313: env->regs[11] = regs->r11;
3314: env->regs[12] = regs->r12;
3315: env->regs[13] = regs->r13;
3316: env->regs[14] = info->start_stack;
3317: env->regs[15] = regs->acr;
3318: env->pc = regs->erp;
3319: }
1.1 root 3320: #else
3321: #error unsupported target CPU
3322: #endif
3323:
1.1.1.6 root 3324: #if defined(TARGET_ARM) || defined(TARGET_M68K)
3325: ts->stack_base = info->start_stack;
3326: ts->heap_base = info->brk;
3327: /* This will be filled in on the first SYS_HEAPINFO call. */
3328: ts->heap_limit = 0;
3329: #endif
3330:
1.1.1.2 root 3331: if (gdbstub_port) {
3332: gdbserver_start (gdbstub_port);
1.1 root 3333: gdb_handlesig(env, 0);
3334: }
3335: cpu_loop(env);
3336: /* never exits */
3337: return 0;
3338: }
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