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