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cpu: Change cpu_exit() argument to CPUState
[qemu.git] / linux-user / main.c
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31e31b8a 1/*
93ac68bc 2 * qemu user main
5fafdf24 3 *
68d0f70e 4 * Copyright (c) 2003-2008 Fabrice Bellard
31e31b8a
FB		 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
8167ee88 17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
31e31b8a
FB		 18 */
19#include <stdlib.h>
20#include <stdio.h>
21#include <stdarg.h>
04369ff2 22#include <string.h>
31e31b8a 23#include <errno.h>
0ecfa993 24#include <unistd.h>
e441570f 25#include <sys/mman.h>
edf8e2af 26#include <sys/syscall.h>
703e0e89 27#include <sys/resource.h>
31e31b8a 28
3ef693a0 29#include "qemu.h"
ca10f867 30#include "qemu-common.h"
1de7afc9 31#include "qemu/cache-utils.h"
2b41f10e 32#include "cpu.h"
9002ec79 33#include "tcg.h"
1de7afc9
PB		 34#include "qemu/timer.h"
35#include "qemu/envlist.h"
d8fd2954 36#include "elf.h"
04a6dfeb 37
d088d664
AJ		 38char *exec_path;
39
1b530a6d 40int singlestep;
fc9c5412
JS		 41const char *filename;
42const char *argv0;
43int gdbstub_port;
44envlist_t *envlist;
45const char *cpu_model;
379f6698 46unsigned long mmap_min_addr;
14f24e14 47#if defined(CONFIG_USE_GUEST_BASE)
379f6698
PB		 48unsigned long guest_base;
49int have_guest_base;
288e65b9
AG		 50#if (TARGET_LONG_BITS == 32) && (HOST_LONG_BITS == 64)
51/*
52 * When running 32-on-64 we should make sure we can fit all of the possible
53 * guest address space into a contiguous chunk of virtual host memory.
54 *
55 * This way we will never overlap with our own libraries or binaries or stack
56 * or anything else that QEMU maps.
57 */
314992b1
AG		 58# ifdef TARGET_MIPS
59/* MIPS only supports 31 bits of virtual address space for user space */
60unsigned long reserved_va = 0x77000000;
61# else
288e65b9 62unsigned long reserved_va = 0xf7000000;
314992b1 63# endif
288e65b9 64#else
68a1c816 65unsigned long reserved_va;
379f6698 66#endif
288e65b9 67#endif
1b530a6d 68
fc9c5412
JS		 69static void usage(void);
70
7ee2822c 71static const char *interp_prefix = CONFIG_QEMU_INTERP_PREFIX;
c5937220 72const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
586314f2 73
9de5e440
FB		 74/* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
75 we allocate a bigger stack. Need a better solution, for example
76 by remapping the process stack directly at the right place */
703e0e89 77unsigned long guest_stack_size = 8 * 1024 * 1024UL;
31e31b8a
FB		 78
79void gemu_log(const char *fmt, ...)
80{
81 va_list ap;
82
83 va_start(ap, fmt);
84 vfprintf(stderr, fmt, ap);
85 va_end(ap);
86}
87
8fcd3692 88#if defined(TARGET_I386)
05390248 89int cpu_get_pic_interrupt(CPUX86State *env)
92ccca6a
FB		 90{
91 return -1;
92}
8fcd3692 93#endif
92ccca6a 94
2f7bb878 95#if defined(CONFIG_USE_NPTL)
d5975363
PB		 96/***********************************************************/
97/* Helper routines for implementing atomic operations. */
98
99/* To implement exclusive operations we force all cpus to syncronise.
100 We don't require a full sync, only that no cpus are executing guest code.
101 The alternative is to map target atomic ops onto host equivalents,
102 which requires quite a lot of per host/target work. */
c2764719 103static pthread_mutex_t cpu_list_mutex = PTHREAD_MUTEX_INITIALIZER;
d5975363
PB		 104static pthread_mutex_t exclusive_lock = PTHREAD_MUTEX_INITIALIZER;
105static pthread_cond_t exclusive_cond = PTHREAD_COND_INITIALIZER;
106static pthread_cond_t exclusive_resume = PTHREAD_COND_INITIALIZER;
107static int pending_cpus;
108
109/* Make sure everything is in a consistent state for calling fork(). */
110void fork_start(void)
111{
5e5f07e0 112 pthread_mutex_lock(&tcg_ctx.tb_ctx.tb_lock);
d5975363 113 pthread_mutex_lock(&exclusive_lock);
d032d1b4 114 mmap_fork_start();
d5975363
PB		 115}
116
117void fork_end(int child)
118{
d032d1b4 119 mmap_fork_end(child);
d5975363
PB		 120 if (child) {
121 /* Child processes created by fork() only have a single thread.
122 Discard information about the parent threads. */
123 first_cpu = thread_env;
124 thread_env->next_cpu = NULL;
125 pending_cpus = 0;
126 pthread_mutex_init(&exclusive_lock, NULL);
c2764719 127 pthread_mutex_init(&cpu_list_mutex, NULL);
d5975363
PB		 128 pthread_cond_init(&exclusive_cond, NULL);
129 pthread_cond_init(&exclusive_resume, NULL);
5e5f07e0 130 pthread_mutex_init(&tcg_ctx.tb_ctx.tb_lock, NULL);
2b1319c8 131 gdbserver_fork(thread_env);
d5975363
PB		 132 } else {
133 pthread_mutex_unlock(&exclusive_lock);
5e5f07e0 134 pthread_mutex_unlock(&tcg_ctx.tb_ctx.tb_lock);
d5975363 135 }
d5975363
PB		 136}
137
138/* Wait for pending exclusive operations to complete. The exclusive lock
139 must be held. */
140static inline void exclusive_idle(void)
141{
142 while (pending_cpus) {
143 pthread_cond_wait(&exclusive_resume, &exclusive_lock);
144 }
145}
146
147/* Start an exclusive operation.
148 Must only be called from outside cpu_arm_exec. */
149static inline void start_exclusive(void)
150{
9349b4f9 151 CPUArchState *other;
0315c31c
AF		 152 CPUState *other_cpu;
153
d5975363
PB		 154 pthread_mutex_lock(&exclusive_lock);
155 exclusive_idle();
156
157 pending_cpus = 1;
158 /* Make all other cpus stop executing. */
159 for (other = first_cpu; other; other = other->next_cpu) {
0315c31c
AF		 160 other_cpu = ENV_GET_CPU(other);
161 if (other_cpu->running) {
d5975363 162 pending_cpus++;
60a3e17a 163 cpu_exit(other_cpu);
d5975363
PB		 164 }
165 }
166 if (pending_cpus > 1) {
167 pthread_cond_wait(&exclusive_cond, &exclusive_lock);
168 }
169}
170
171/* Finish an exclusive operation. */
172static inline void end_exclusive(void)
173{
174 pending_cpus = 0;
175 pthread_cond_broadcast(&exclusive_resume);
176 pthread_mutex_unlock(&exclusive_lock);
177}
178
179/* Wait for exclusive ops to finish, and begin cpu execution. */
0315c31c 180static inline void cpu_exec_start(CPUState *cpu)
d5975363
PB		 181{
182 pthread_mutex_lock(&exclusive_lock);
183 exclusive_idle();
0315c31c 184 cpu->running = true;
d5975363
PB		 185 pthread_mutex_unlock(&exclusive_lock);
186}
187
188/* Mark cpu as not executing, and release pending exclusive ops. */
0315c31c 189static inline void cpu_exec_end(CPUState *cpu)
d5975363
PB		 190{
191 pthread_mutex_lock(&exclusive_lock);
0315c31c 192 cpu->running = false;
d5975363
PB		 193 if (pending_cpus > 1) {
194 pending_cpus--;
195 if (pending_cpus == 1) {
196 pthread_cond_signal(&exclusive_cond);
197 }
198 }
199 exclusive_idle();
200 pthread_mutex_unlock(&exclusive_lock);
201}
c2764719
PB		 202
203void cpu_list_lock(void)
204{
205 pthread_mutex_lock(&cpu_list_mutex);
206}
207
208void cpu_list_unlock(void)
209{
210 pthread_mutex_unlock(&cpu_list_mutex);
211}
2f7bb878 212#else /* if !CONFIG_USE_NPTL */
d5975363 213/* These are no-ops because we are not threadsafe. */
0315c31c 214static inline void cpu_exec_start(CPUState *cpu)
d5975363
PB		 215{
216}
217
0315c31c 218static inline void cpu_exec_end(CPUState *cpu)
d5975363
PB		 219{
220}
221
222static inline void start_exclusive(void)
223{
224}
225
226static inline void end_exclusive(void)
227{
228}
229
230void fork_start(void)
231{
232}
233
234void fork_end(int child)
235{
2b1319c8
AJ		 236 if (child) {
237 gdbserver_fork(thread_env);
238 }
d5975363 239}
c2764719
PB		 240
241void cpu_list_lock(void)
242{
243}
244
245void cpu_list_unlock(void)
246{
247}
d5975363
PB		 248#endif
249
250
a541f297
FB		 251#ifdef TARGET_I386
252/***********************************************************/
253/* CPUX86 core interface */
254
05390248 255void cpu_smm_update(CPUX86State *env)
02a1602e
FB		 256{
257}
258
28ab0e2e
FB		 259uint64_t cpu_get_tsc(CPUX86State *env)
260{
261 return cpu_get_real_ticks();
262}
263
5fafdf24 264static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
f4beb510 265 int flags)
6dbad63e 266{
f4beb510 267 unsigned int e1, e2;
53a5960a 268 uint32_t *p;
6dbad63e
FB		 269 e1 = (addr << 16) | (limit & 0xffff);
270 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
f4beb510 271 e2 |= flags;
53a5960a 272 p = ptr;
d538e8f5 273 p[0] = tswap32(e1);
274 p[1] = tswap32(e2);
f4beb510
FB		 275}
276
e441570f 277static uint64_t *idt_table;
eb38c52c 278#ifdef TARGET_X86_64
d2fd1af7
FB		 279static void set_gate64(void *ptr, unsigned int type, unsigned int dpl,
280 uint64_t addr, unsigned int sel)
f4beb510 281{
4dbc422b 282 uint32_t *p, e1, e2;
f4beb510
FB		 283 e1 = (addr & 0xffff) | (sel << 16);
284 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
53a5960a 285 p = ptr;
4dbc422b
FB		 286 p[0] = tswap32(e1);
287 p[1] = tswap32(e2);
288 p[2] = tswap32(addr >> 32);
289 p[3] = 0;
6dbad63e 290}
d2fd1af7
FB		 291/* only dpl matters as we do only user space emulation */
292static void set_idt(int n, unsigned int dpl)
293{
294 set_gate64(idt_table + n * 2, 0, dpl, 0, 0);
295}
296#else
d2fd1af7
FB		 297static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
298 uint32_t addr, unsigned int sel)
299{
4dbc422b 300 uint32_t *p, e1, e2;
d2fd1af7
FB		 301 e1 = (addr & 0xffff) | (sel << 16);
302 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
303 p = ptr;
4dbc422b
FB		 304 p[0] = tswap32(e1);
305 p[1] = tswap32(e2);
d2fd1af7
FB		 306}
307
f4beb510
FB		 308/* only dpl matters as we do only user space emulation */
309static void set_idt(int n, unsigned int dpl)
310{
311 set_gate(idt_table + n, 0, dpl, 0, 0);
312}
d2fd1af7 313#endif
31e31b8a 314
89e957e7 315void cpu_loop(CPUX86State *env)
1b6b029e 316{
bc8a22cc 317 int trapnr;
992f48a0 318 abi_ulong pc;
c227f099 319 target_siginfo_t info;
851e67a1 320
1b6b029e 321 for(;;) {
bc8a22cc 322 trapnr = cpu_x86_exec(env);
bc8a22cc 323 switch(trapnr) {
f4beb510 324 case 0x80:
d2fd1af7 325 /* linux syscall from int $0x80 */
5fafdf24
TS		 326 env->regs[R_EAX] = do_syscall(env,
327 env->regs[R_EAX],
f4beb510
FB		 328 env->regs[R_EBX],
329 env->regs[R_ECX],
330 env->regs[R_EDX],
331 env->regs[R_ESI],
332 env->regs[R_EDI],
5945cfcb
PM		 333 env->regs[R_EBP],
334 0, 0);
f4beb510 335 break;
d2fd1af7
FB		 336#ifndef TARGET_ABI32
337 case EXCP_SYSCALL:
5ba18547 338 /* linux syscall from syscall instruction */
d2fd1af7
FB		 339 env->regs[R_EAX] = do_syscall(env,
340 env->regs[R_EAX],
341 env->regs[R_EDI],
342 env->regs[R_ESI],
343 env->regs[R_EDX],
344 env->regs[10],
345 env->regs[8],
5945cfcb
PM		 346 env->regs[9],
347 0, 0);
d2fd1af7
FB		 348 env->eip = env->exception_next_eip;
349 break;
350#endif
f4beb510
FB		 351 case EXCP0B_NOSEG:
352 case EXCP0C_STACK:
353 info.si_signo = SIGBUS;
354 info.si_errno = 0;
355 info.si_code = TARGET_SI_KERNEL;
356 info._sifields._sigfault._addr = 0;
624f7979 357 queue_signal(env, info.si_signo, &info);
f4beb510 358 break;
1b6b029e 359 case EXCP0D_GPF:
d2fd1af7 360 /* XXX: potential problem if ABI32 */
84409ddb 361#ifndef TARGET_X86_64
851e67a1 362 if (env->eflags & VM_MASK) {
89e957e7 363 handle_vm86_fault(env);
84409ddb
JM		 364 } else
365#endif
366 {
f4beb510
FB		 367 info.si_signo = SIGSEGV;
368 info.si_errno = 0;
369 info.si_code = TARGET_SI_KERNEL;
370 info._sifields._sigfault._addr = 0;
624f7979 371 queue_signal(env, info.si_signo, &info);
1b6b029e
FB		 372 }
373 break;
b689bc57
FB		 374 case EXCP0E_PAGE:
375 info.si_signo = SIGSEGV;
376 info.si_errno = 0;
377 if (!(env->error_code & 1))
378 info.si_code = TARGET_SEGV_MAPERR;
379 else
380 info.si_code = TARGET_SEGV_ACCERR;
970a87a6 381 info._sifields._sigfault._addr = env->cr[2];
624f7979 382 queue_signal(env, info.si_signo, &info);
b689bc57 383 break;
9de5e440 384 case EXCP00_DIVZ:
84409ddb 385#ifndef TARGET_X86_64
bc8a22cc 386 if (env->eflags & VM_MASK) {
447db213 387 handle_vm86_trap(env, trapnr);
84409ddb
JM		 388 } else
389#endif
390 {
bc8a22cc
FB		 391 /* division by zero */
392 info.si_signo = SIGFPE;
393 info.si_errno = 0;
394 info.si_code = TARGET_FPE_INTDIV;
395 info._sifields._sigfault._addr = env->eip;
624f7979 396 queue_signal(env, info.si_signo, &info);
bc8a22cc 397 }
9de5e440 398 break;
01df040b 399 case EXCP01_DB:
447db213 400 case EXCP03_INT3:
84409ddb 401#ifndef TARGET_X86_64
447db213
FB		 402 if (env->eflags & VM_MASK) {
403 handle_vm86_trap(env, trapnr);
84409ddb
JM		 404 } else
405#endif
406 {
447db213
FB		 407 info.si_signo = SIGTRAP;
408 info.si_errno = 0;
01df040b 409 if (trapnr == EXCP01_DB) {
447db213
FB		 410 info.si_code = TARGET_TRAP_BRKPT;
411 info._sifields._sigfault._addr = env->eip;
412 } else {
413 info.si_code = TARGET_SI_KERNEL;
414 info._sifields._sigfault._addr = 0;
415 }
624f7979 416 queue_signal(env, info.si_signo, &info);
447db213
FB		 417 }
418 break;
9de5e440
FB		 419 case EXCP04_INTO:
420 case EXCP05_BOUND:
84409ddb 421#ifndef TARGET_X86_64
bc8a22cc 422 if (env->eflags & VM_MASK) {
447db213 423 handle_vm86_trap(env, trapnr);
84409ddb
JM		 424 } else
425#endif
426 {
bc8a22cc
FB		 427 info.si_signo = SIGSEGV;
428 info.si_errno = 0;
b689bc57 429 info.si_code = TARGET_SI_KERNEL;
bc8a22cc 430 info._sifields._sigfault._addr = 0;
624f7979 431 queue_signal(env, info.si_signo, &info);
bc8a22cc 432 }
9de5e440
FB		 433 break;
434 case EXCP06_ILLOP:
435 info.si_signo = SIGILL;
436 info.si_errno = 0;
437 info.si_code = TARGET_ILL_ILLOPN;
438 info._sifields._sigfault._addr = env->eip;
624f7979 439 queue_signal(env, info.si_signo, &info);
9de5e440
FB		 440 break;
441 case EXCP_INTERRUPT:
442 /* just indicate that signals should be handled asap */
443 break;
1fddef4b
FB		 444 case EXCP_DEBUG:
445 {
446 int sig;
447
448 sig = gdb_handlesig (env, TARGET_SIGTRAP);
449 if (sig)
450 {
451 info.si_signo = sig;
452 info.si_errno = 0;
453 info.si_code = TARGET_TRAP_BRKPT;
624f7979 454 queue_signal(env, info.si_signo, &info);
1fddef4b
FB		 455 }
456 }
457 break;
1b6b029e 458 default:
970a87a6 459 pc = env->segs[R_CS].base + env->eip;
5fafdf24 460 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
bc8a22cc 461 (long)pc, trapnr);
1b6b029e
FB		 462 abort();
463 }
66fb9763 464 process_pending_signals(env);
1b6b029e
FB		 465 }
466}
b346ff46
FB		 467#endif
468
469#ifdef TARGET_ARM
470
d8fd2954
PB		 471#define get_user_code_u32(x, gaddr, doswap) \
472 ({ abi_long __r = get_user_u32((x), (gaddr)); \
473 if (!__r && (doswap)) { \
474 (x) = bswap32(x); \
475 } \
476 __r; \
477 })
478
479#define get_user_code_u16(x, gaddr, doswap) \
480 ({ abi_long __r = get_user_u16((x), (gaddr)); \
481 if (!__r && (doswap)) { \
482 (x) = bswap16(x); \
483 } \
484 __r; \
485 })
486
97cc7560
DDAG		 487/*
488 * See the Linux kernel's Documentation/arm/kernel_user_helpers.txt
489 * Input:
490 * r0 = pointer to oldval
491 * r1 = pointer to newval
492 * r2 = pointer to target value
493 *
494 * Output:
495 * r0 = 0 if *ptr was changed, non-0 if no exchange happened
496 * C set if *ptr was changed, clear if no exchange happened
497 *
498 * Note segv's in kernel helpers are a bit tricky, we can set the
499 * data address sensibly but the PC address is just the entry point.
500 */
501static void arm_kernel_cmpxchg64_helper(CPUARMState *env)
502{
503 uint64_t oldval, newval, val;
504 uint32_t addr, cpsr;
505 target_siginfo_t info;
506
507 /* Based on the 32 bit code in do_kernel_trap */
508
509 /* XXX: This only works between threads, not between processes.
510 It's probably possible to implement this with native host
511 operations. However things like ldrex/strex are much harder so
512 there's not much point trying. */
513 start_exclusive();
514 cpsr = cpsr_read(env);
515 addr = env->regs[2];
516
517 if (get_user_u64(oldval, env->regs[0])) {
518 env->cp15.c6_data = env->regs[0];
519 goto segv;
520 };
521
522 if (get_user_u64(newval, env->regs[1])) {
523 env->cp15.c6_data = env->regs[1];
524 goto segv;
525 };
526
527 if (get_user_u64(val, addr)) {
528 env->cp15.c6_data = addr;
529 goto segv;
530 }
531
532 if (val == oldval) {
533 val = newval;
534
535 if (put_user_u64(val, addr)) {
536 env->cp15.c6_data = addr;
537 goto segv;
538 };
539
540 env->regs[0] = 0;
541 cpsr |= CPSR_C;
542 } else {
543 env->regs[0] = -1;
544 cpsr &= ~CPSR_C;
545 }
546 cpsr_write(env, cpsr, CPSR_C);
547 end_exclusive();
548 return;
549
550segv:
551 end_exclusive();
552 /* We get the PC of the entry address - which is as good as anything,
553 on a real kernel what you get depends on which mode it uses. */
554 info.si_signo = SIGSEGV;
555 info.si_errno = 0;
556 /* XXX: check env->error_code */
557 info.si_code = TARGET_SEGV_MAPERR;
558 info._sifields._sigfault._addr = env->cp15.c6_data;
559 queue_signal(env, info.si_signo, &info);
560
561 end_exclusive();
562}
563
fbb4a2e3
PB		 564/* Handle a jump to the kernel code page. */
565static int
566do_kernel_trap(CPUARMState *env)
567{
568 uint32_t addr;
569 uint32_t cpsr;
570 uint32_t val;
571
572 switch (env->regs[15]) {
573 case 0xffff0fa0: /* __kernel_memory_barrier */
574 /* ??? No-op. Will need to do better for SMP. */
575 break;
576 case 0xffff0fc0: /* __kernel_cmpxchg */
d5975363
PB		 577 /* XXX: This only works between threads, not between processes.
578 It's probably possible to implement this with native host
579 operations. However things like ldrex/strex are much harder so
580 there's not much point trying. */
581 start_exclusive();
fbb4a2e3
PB		 582 cpsr = cpsr_read(env);
583 addr = env->regs[2];
584 /* FIXME: This should SEGV if the access fails. */
585 if (get_user_u32(val, addr))
586 val = ~env->regs[0];
587 if (val == env->regs[0]) {
588 val = env->regs[1];
589 /* FIXME: Check for segfaults. */
590 put_user_u32(val, addr);
591 env->regs[0] = 0;
592 cpsr |= CPSR_C;
593 } else {
594 env->regs[0] = -1;
595 cpsr &= ~CPSR_C;
596 }
597 cpsr_write(env, cpsr, CPSR_C);
d5975363 598 end_exclusive();
fbb4a2e3
PB		 599 break;
600 case 0xffff0fe0: /* __kernel_get_tls */
601 env->regs[0] = env->cp15.c13_tls2;
602 break;
97cc7560
DDAG		 603 case 0xffff0f60: /* __kernel_cmpxchg64 */
604 arm_kernel_cmpxchg64_helper(env);
605 break;
606
fbb4a2e3
PB		 607 default:
608 return 1;
609 }
610 /* Jump back to the caller. */
611 addr = env->regs[14];
612 if (addr & 1) {
613 env->thumb = 1;
614 addr &= ~1;
615 }
616 env->regs[15] = addr;
617
618 return 0;
619}
620
426f5abc
PB		 621static int do_strex(CPUARMState *env)
622{
623 uint32_t val;
624 int size;
625 int rc = 1;
626 int segv = 0;
627 uint32_t addr;
628 start_exclusive();
629 addr = env->exclusive_addr;
630 if (addr != env->exclusive_test) {
631 goto fail;
632 }
633 size = env->exclusive_info & 0xf;
634 switch (size) {
635 case 0:
636 segv = get_user_u8(val, addr);
637 break;
638 case 1:
639 segv = get_user_u16(val, addr);
640 break;
641 case 2:
642 case 3:
643 segv = get_user_u32(val, addr);
644 break;
f7001a3b
AJ		 645 default:
646 abort();
426f5abc
PB		 647 }
648 if (segv) {
649 env->cp15.c6_data = addr;
650 goto done;
651 }
652 if (val != env->exclusive_val) {
653 goto fail;
654 }
655 if (size == 3) {
656 segv = get_user_u32(val, addr + 4);
657 if (segv) {
658 env->cp15.c6_data = addr + 4;
659 goto done;
660 }
661 if (val != env->exclusive_high) {
662 goto fail;
663 }
664 }
665 val = env->regs[(env->exclusive_info >> 8) & 0xf];
666 switch (size) {
667 case 0:
668 segv = put_user_u8(val, addr);
669 break;
670 case 1:
671 segv = put_user_u16(val, addr);
672 break;
673 case 2:
674 case 3:
675 segv = put_user_u32(val, addr);
676 break;
677 }
678 if (segv) {
679 env->cp15.c6_data = addr;
680 goto done;
681 }
682 if (size == 3) {
683 val = env->regs[(env->exclusive_info >> 12) & 0xf];
2c9adbda 684 segv = put_user_u32(val, addr + 4);
426f5abc
PB		 685 if (segv) {
686 env->cp15.c6_data = addr + 4;
687 goto done;
688 }
689 }
690 rc = 0;
691fail:
725b8a69 692 env->regs[15] += 4;
426f5abc
PB		 693 env->regs[(env->exclusive_info >> 4) & 0xf] = rc;
694done:
695 end_exclusive();
696 return segv;
697}
698
b346ff46
FB		 699void cpu_loop(CPUARMState *env)
700{
0315c31c 701 CPUState *cs = CPU(arm_env_get_cpu(env));
b346ff46
FB		 702 int trapnr;
703 unsigned int n, insn;
c227f099 704 target_siginfo_t info;
b5ff1b31 705 uint32_t addr;
3b46e624 706
b346ff46 707 for(;;) {
0315c31c 708 cpu_exec_start(cs);
b346ff46 709 trapnr = cpu_arm_exec(env);
0315c31c 710 cpu_exec_end(cs);
b346ff46
FB		 711 switch(trapnr) {
712 case EXCP_UDEF:
c6981055
FB		 713 {
714 TaskState *ts = env->opaque;
715 uint32_t opcode;
6d9a42be 716 int rc;
c6981055
FB		 717
718 /* we handle the FPU emulation here, as Linux */
719 /* we get the opcode */
2f619698 720 /* FIXME - what to do if get_user() fails? */
d8fd2954 721 get_user_code_u32(opcode, env->regs[15], env->bswap_code);
3b46e624 722
6d9a42be
AJ		 723 rc = EmulateAll(opcode, &ts->fpa, env);
724 if (rc == 0) { /* illegal instruction */
c6981055
FB		 725 info.si_signo = SIGILL;
726 info.si_errno = 0;
727 info.si_code = TARGET_ILL_ILLOPN;
728 info._sifields._sigfault._addr = env->regs[15];
624f7979 729 queue_signal(env, info.si_signo, &info);
6d9a42be
AJ		 730 } else if (rc < 0) { /* FP exception */
731 int arm_fpe=0;
732
733 /* translate softfloat flags to FPSR flags */
734 if (-rc & float_flag_invalid)
735 arm_fpe |= BIT_IOC;
736 if (-rc & float_flag_divbyzero)
737 arm_fpe |= BIT_DZC;
738 if (-rc & float_flag_overflow)
739 arm_fpe |= BIT_OFC;
740 if (-rc & float_flag_underflow)
741 arm_fpe |= BIT_UFC;
742 if (-rc & float_flag_inexact)
743 arm_fpe |= BIT_IXC;
744
745 FPSR fpsr = ts->fpa.fpsr;
746 //printf("fpsr 0x%x, arm_fpe 0x%x\n",fpsr,arm_fpe);
747
748 if (fpsr & (arm_fpe << 16)) { /* exception enabled? */
749 info.si_signo = SIGFPE;
750 info.si_errno = 0;
751
752 /* ordered by priority, least first */
753 if (arm_fpe & BIT_IXC) info.si_code = TARGET_FPE_FLTRES;
754 if (arm_fpe & BIT_UFC) info.si_code = TARGET_FPE_FLTUND;
755 if (arm_fpe & BIT_OFC) info.si_code = TARGET_FPE_FLTOVF;
756 if (arm_fpe & BIT_DZC) info.si_code = TARGET_FPE_FLTDIV;
757 if (arm_fpe & BIT_IOC) info.si_code = TARGET_FPE_FLTINV;
758
759 info._sifields._sigfault._addr = env->regs[15];
624f7979 760 queue_signal(env, info.si_signo, &info);
6d9a42be
AJ		 761 } else {
762 env->regs[15] += 4;
763 }
764
765 /* accumulate unenabled exceptions */
766 if ((!(fpsr & BIT_IXE)) && (arm_fpe & BIT_IXC))
767 fpsr |= BIT_IXC;
768 if ((!(fpsr & BIT_UFE)) && (arm_fpe & BIT_UFC))
769 fpsr |= BIT_UFC;
770 if ((!(fpsr & BIT_OFE)) && (arm_fpe & BIT_OFC))
771 fpsr |= BIT_OFC;
772 if ((!(fpsr & BIT_DZE)) && (arm_fpe & BIT_DZC))
773 fpsr |= BIT_DZC;
774 if ((!(fpsr & BIT_IOE)) && (arm_fpe & BIT_IOC))
775 fpsr |= BIT_IOC;
776 ts->fpa.fpsr=fpsr;
777 } else { /* everything OK */
c6981055
FB		 778 /* increment PC */
779 env->regs[15] += 4;
780 }
781 }
b346ff46
FB		 782 break;
783 case EXCP_SWI:
06c949e6 784 case EXCP_BKPT:
b346ff46 785 {
ce4defa0 786 env->eabi = 1;
b346ff46 787 /* system call */
06c949e6
PB		 788 if (trapnr == EXCP_BKPT) {
789 if (env->thumb) {
2f619698 790 /* FIXME - what to do if get_user() fails? */
d8fd2954 791 get_user_code_u16(insn, env->regs[15], env->bswap_code);
06c949e6
PB		 792 n = insn & 0xff;
793 env->regs[15] += 2;
794 } else {
2f619698 795 /* FIXME - what to do if get_user() fails? */
d8fd2954 796 get_user_code_u32(insn, env->regs[15], env->bswap_code);
06c949e6
PB		 797 n = (insn & 0xf) | ((insn >> 4) & 0xff0);
798 env->regs[15] += 4;
799 }
192c7bd9 800 } else {
06c949e6 801 if (env->thumb) {
2f619698 802 /* FIXME - what to do if get_user() fails? */
d8fd2954
PB		 803 get_user_code_u16(insn, env->regs[15] - 2,
804 env->bswap_code);
06c949e6
PB		 805 n = insn & 0xff;
806 } else {
2f619698 807 /* FIXME - what to do if get_user() fails? */
d8fd2954
PB		 808 get_user_code_u32(insn, env->regs[15] - 4,
809 env->bswap_code);
06c949e6
PB		 810 n = insn & 0xffffff;
811 }
192c7bd9
FB		 812 }
813
6f1f31c0 814 if (n == ARM_NR_cacheflush) {
dcfd14b3 815 /* nop */
a4f81979
FB		 816 } else if (n == ARM_NR_semihosting
817 || n == ARM_NR_thumb_semihosting) {
818 env->regs[0] = do_arm_semihosting (env);
3a1363ac 819 } else if (n == 0 || n >= ARM_SYSCALL_BASE || env->thumb) {
b346ff46 820 /* linux syscall */
ce4defa0 821 if (env->thumb || n == 0) {
192c7bd9
FB		 822 n = env->regs[7];
823 } else {
824 n -= ARM_SYSCALL_BASE;
ce4defa0 825 env->eabi = 0;
192c7bd9 826 }
fbb4a2e3
PB		 827 if ( n > ARM_NR_BASE) {
828 switch (n) {
829 case ARM_NR_cacheflush:
dcfd14b3 830 /* nop */
fbb4a2e3
PB		 831 break;
832 case ARM_NR_set_tls:
833 cpu_set_tls(env, env->regs[0]);
834 env->regs[0] = 0;
835 break;
836 default:
837 gemu_log("qemu: Unsupported ARM syscall: 0x%x\n",
838 n);
839 env->regs[0] = -TARGET_ENOSYS;
840 break;
841 }
842 } else {
843 env->regs[0] = do_syscall(env,
844 n,
845 env->regs[0],
846 env->regs[1],
847 env->regs[2],
848 env->regs[3],
849 env->regs[4],
5945cfcb
PM		 850 env->regs[5],
851 0, 0);
fbb4a2e3 852 }
b346ff46
FB		 853 } else {
854 goto error;
855 }
856 }
857 break;
43fff238
FB		 858 case EXCP_INTERRUPT:
859 /* just indicate that signals should be handled asap */
860 break;
68016c62 861 case EXCP_PREFETCH_ABORT:
eae473c1 862 addr = env->cp15.c6_insn;
b5ff1b31 863 goto do_segv;
68016c62 864 case EXCP_DATA_ABORT:
eae473c1 865 addr = env->cp15.c6_data;
b5ff1b31 866 do_segv:
68016c62
FB		 867 {
868 info.si_signo = SIGSEGV;
869 info.si_errno = 0;
870 /* XXX: check env->error_code */
871 info.si_code = TARGET_SEGV_MAPERR;
b5ff1b31 872 info._sifields._sigfault._addr = addr;
624f7979 873 queue_signal(env, info.si_signo, &info);
68016c62
FB		 874 }
875 break;
1fddef4b
FB		 876 case EXCP_DEBUG:
877 {
878 int sig;
879
880 sig = gdb_handlesig (env, TARGET_SIGTRAP);
881 if (sig)
882 {
883 info.si_signo = sig;
884 info.si_errno = 0;
885 info.si_code = TARGET_TRAP_BRKPT;
624f7979 886 queue_signal(env, info.si_signo, &info);
1fddef4b
FB		 887 }
888 }
889 break;
fbb4a2e3
PB		 890 case EXCP_KERNEL_TRAP:
891 if (do_kernel_trap(env))
892 goto error;
893 break;
426f5abc
PB		 894 case EXCP_STREX:
895 if (do_strex(env)) {
896 addr = env->cp15.c6_data;
897 goto do_segv;
898 }
e9273455 899 break;
b346ff46
FB		 900 default:
901 error:
5fafdf24 902 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
b346ff46 903 trapnr);
7fe48483 904 cpu_dump_state(env, stderr, fprintf, 0);
b346ff46
FB		 905 abort();
906 }
907 process_pending_signals(env);
908 }
909}
910
911#endif
1b6b029e 912
d2fbca94
GX		 913#ifdef TARGET_UNICORE32
914
05390248 915void cpu_loop(CPUUniCore32State *env)
d2fbca94 916{
0315c31c 917 CPUState *cs = CPU(uc32_env_get_cpu(env));
d2fbca94
GX		 918 int trapnr;
919 unsigned int n, insn;
920 target_siginfo_t info;
921
922 for (;;) {
0315c31c 923 cpu_exec_start(cs);
d2fbca94 924 trapnr = uc32_cpu_exec(env);
0315c31c 925 cpu_exec_end(cs);
d2fbca94
GX		 926 switch (trapnr) {
927 case UC32_EXCP_PRIV:
928 {
929 /* system call */
930 get_user_u32(insn, env->regs[31] - 4);
931 n = insn & 0xffffff;
932
933 if (n >= UC32_SYSCALL_BASE) {
934 /* linux syscall */
935 n -= UC32_SYSCALL_BASE;
936 if (n == UC32_SYSCALL_NR_set_tls) {
937 cpu_set_tls(env, env->regs[0]);
938 env->regs[0] = 0;
939 } else {
940 env->regs[0] = do_syscall(env,
941 n,
942 env->regs[0],
943 env->regs[1],
944 env->regs[2],
945 env->regs[3],
946 env->regs[4],
5945cfcb
PM		 947 env->regs[5],
948 0, 0);
d2fbca94
GX		 949 }
950 } else {
951 goto error;
952 }
953 }
954 break;
d48813dd
GX		 955 case UC32_EXCP_DTRAP:
956 case UC32_EXCP_ITRAP:
d2fbca94
GX		 957 info.si_signo = SIGSEGV;
958 info.si_errno = 0;
959 /* XXX: check env->error_code */
960 info.si_code = TARGET_SEGV_MAPERR;
961 info._sifields._sigfault._addr = env->cp0.c4_faultaddr;
962 queue_signal(env, info.si_signo, &info);
963 break;
964 case EXCP_INTERRUPT:
965 /* just indicate that signals should be handled asap */
966 break;
967 case EXCP_DEBUG:
968 {
969 int sig;
970
971 sig = gdb_handlesig(env, TARGET_SIGTRAP);
972 if (sig) {
973 info.si_signo = sig;
974 info.si_errno = 0;
975 info.si_code = TARGET_TRAP_BRKPT;
976 queue_signal(env, info.si_signo, &info);
977 }
978 }
979 break;
980 default:
981 goto error;
982 }
983 process_pending_signals(env);
984 }
985
986error:
987 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr);
988 cpu_dump_state(env, stderr, fprintf, 0);
989 abort();
990}
991#endif
992
93ac68bc 993#ifdef TARGET_SPARC
ed23fbd9 994#define SPARC64_STACK_BIAS 2047
93ac68bc 995
060366c5
FB		 996//#define DEBUG_WIN
997
2623cbaf
FB		 998/* WARNING: dealing with register windows _is_ complicated. More info
999 can be found at http://www.sics.se/~psm/sparcstack.html */
060366c5
FB		 1000static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
1001{
1a14026e 1002 index = (index + cwp * 16) % (16 * env->nwindows);
060366c5
FB		 1003 /* wrap handling : if cwp is on the last window, then we use the
1004 registers 'after' the end */
1a14026e
BS		 1005 if (index < 8 && env->cwp == env->nwindows - 1)
1006 index += 16 * env->nwindows;
060366c5
FB		 1007 return index;
1008}
1009
2623cbaf
FB		 1010/* save the register window 'cwp1' */
1011static inline void save_window_offset(CPUSPARCState *env, int cwp1)
060366c5 1012{
2623cbaf 1013 unsigned int i;
992f48a0 1014 abi_ulong sp_ptr;
3b46e624 1015
53a5960a 1016 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
ed23fbd9
BS		 1017#ifdef TARGET_SPARC64
1018 if (sp_ptr & 3)
1019 sp_ptr += SPARC64_STACK_BIAS;
1020#endif
060366c5 1021#if defined(DEBUG_WIN)
2daf0284
BS		 1022 printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n",
1023 sp_ptr, cwp1);
060366c5 1024#endif
2623cbaf 1025 for(i = 0; i < 16; i++) {
2f619698
FB		 1026 /* FIXME - what to do if put_user() fails? */
1027 put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
992f48a0 1028 sp_ptr += sizeof(abi_ulong);
2623cbaf 1029 }
060366c5
FB		 1030}
1031
1032static void save_window(CPUSPARCState *env)
1033{
5ef54116 1034#ifndef TARGET_SPARC64
2623cbaf 1035 unsigned int new_wim;
1a14026e
BS		 1036 new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) &
1037 ((1LL << env->nwindows) - 1);
1038 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
2623cbaf 1039 env->wim = new_wim;
5ef54116 1040#else
1a14026e 1041 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
5ef54116
FB		 1042 env->cansave++;
1043 env->canrestore--;
1044#endif
060366c5
FB		 1045}
1046
1047static void restore_window(CPUSPARCState *env)
1048{
eda52953
BS		 1049#ifndef TARGET_SPARC64
1050 unsigned int new_wim;
1051#endif
1052 unsigned int i, cwp1;
992f48a0 1053 abi_ulong sp_ptr;
3b46e624 1054
eda52953 1055#ifndef TARGET_SPARC64
1a14026e
BS		 1056 new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) &
1057 ((1LL << env->nwindows) - 1);
eda52953 1058#endif
3b46e624 1059
060366c5 1060 /* restore the invalid window */
1a14026e 1061 cwp1 = cpu_cwp_inc(env, env->cwp + 1);
53a5960a 1062 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
ed23fbd9
BS		 1063#ifdef TARGET_SPARC64
1064 if (sp_ptr & 3)
1065 sp_ptr += SPARC64_STACK_BIAS;
1066#endif
060366c5 1067#if defined(DEBUG_WIN)
2daf0284
BS		 1068 printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n",
1069 sp_ptr, cwp1);
060366c5 1070#endif
2623cbaf 1071 for(i = 0; i < 16; i++) {
2f619698
FB		 1072 /* FIXME - what to do if get_user() fails? */
1073 get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
992f48a0 1074 sp_ptr += sizeof(abi_ulong);
2623cbaf 1075 }
5ef54116
FB		 1076#ifdef TARGET_SPARC64
1077 env->canrestore++;
1a14026e
BS		 1078 if (env->cleanwin < env->nwindows - 1)
1079 env->cleanwin++;
5ef54116 1080 env->cansave--;
eda52953
BS		 1081#else
1082 env->wim = new_wim;
5ef54116 1083#endif
060366c5
FB		 1084}
1085
1086static void flush_windows(CPUSPARCState *env)
1087{
1088 int offset, cwp1;
2623cbaf
FB		 1089
1090 offset = 1;
060366c5
FB		 1091 for(;;) {
1092 /* if restore would invoke restore_window(), then we can stop */
1a14026e 1093 cwp1 = cpu_cwp_inc(env, env->cwp + offset);
eda52953 1094#ifndef TARGET_SPARC64
060366c5
FB		 1095 if (env->wim & (1 << cwp1))
1096 break;
eda52953
BS		 1097#else
1098 if (env->canrestore == 0)
1099 break;
1100 env->cansave++;
1101 env->canrestore--;
1102#endif
2623cbaf 1103 save_window_offset(env, cwp1);
060366c5
FB		 1104 offset++;
1105 }
1a14026e 1106 cwp1 = cpu_cwp_inc(env, env->cwp + 1);
eda52953
BS		 1107#ifndef TARGET_SPARC64
1108 /* set wim so that restore will reload the registers */
2623cbaf 1109 env->wim = 1 << cwp1;
eda52953 1110#endif
2623cbaf
FB		 1111#if defined(DEBUG_WIN)
1112 printf("flush_windows: nb=%d\n", offset - 1);
80a9d035 1113#endif
2623cbaf 1114}
060366c5 1115
93ac68bc
FB		 1116void cpu_loop (CPUSPARCState *env)
1117{
2cc20260
RH		 1118 int trapnr;
1119 abi_long ret;
c227f099 1120 target_siginfo_t info;
3b46e624 1121
060366c5
FB		 1122 while (1) {
1123 trapnr = cpu_sparc_exec (env);
3b46e624 1124
20132b96
RH		 1125 /* Compute PSR before exposing state. */
1126 if (env->cc_op != CC_OP_FLAGS) {
1127 cpu_get_psr(env);
1128 }
1129
060366c5 1130 switch (trapnr) {
5ef54116 1131#ifndef TARGET_SPARC64
5fafdf24 1132 case 0x88:
060366c5 1133 case 0x90:
5ef54116 1134#else
cb33da57 1135 case 0x110:
5ef54116
FB		 1136 case 0x16d:
1137#endif
060366c5 1138 ret = do_syscall (env, env->gregs[1],
5fafdf24
TS		 1139 env->regwptr[0], env->regwptr[1],
1140 env->regwptr[2], env->regwptr[3],
5945cfcb
PM		 1141 env->regwptr[4], env->regwptr[5],
1142 0, 0);
2cc20260 1143 if ((abi_ulong)ret >= (abi_ulong)(-515)) {
992f48a0 1144#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
27908725
FB		 1145 env->xcc |= PSR_CARRY;
1146#else
060366c5 1147 env->psr |= PSR_CARRY;
27908725 1148#endif
060366c5
FB		 1149 ret = -ret;
1150 } else {
992f48a0 1151#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
27908725
FB		 1152 env->xcc &= ~PSR_CARRY;
1153#else
060366c5 1154 env->psr &= ~PSR_CARRY;
27908725 1155#endif
060366c5
FB		 1156 }
1157 env->regwptr[0] = ret;
1158 /* next instruction */
1159 env->pc = env->npc;
1160 env->npc = env->npc + 4;
1161 break;
1162 case 0x83: /* flush windows */
992f48a0
BS		 1163#ifdef TARGET_ABI32
1164 case 0x103:
1165#endif
2623cbaf 1166 flush_windows(env);
060366c5
FB		 1167 /* next instruction */
1168 env->pc = env->npc;
1169 env->npc = env->npc + 4;
1170 break;
3475187d 1171#ifndef TARGET_SPARC64
060366c5
FB		 1172 case TT_WIN_OVF: /* window overflow */
1173 save_window(env);
1174 break;
1175 case TT_WIN_UNF: /* window underflow */
1176 restore_window(env);
1177 break;
61ff6f58
FB		 1178 case TT_TFAULT:
1179 case TT_DFAULT:
1180 {
59f7182f 1181 info.si_signo = TARGET_SIGSEGV;
61ff6f58
FB		 1182 info.si_errno = 0;
1183 /* XXX: check env->error_code */
1184 info.si_code = TARGET_SEGV_MAPERR;
1185 info._sifields._sigfault._addr = env->mmuregs[4];
624f7979 1186 queue_signal(env, info.si_signo, &info);
61ff6f58
FB		 1187 }
1188 break;
3475187d 1189#else
5ef54116
FB		 1190 case TT_SPILL: /* window overflow */
1191 save_window(env);
1192 break;
1193 case TT_FILL: /* window underflow */
1194 restore_window(env);
1195 break;
7f84a729
BS		 1196 case TT_TFAULT:
1197 case TT_DFAULT:
1198 {
59f7182f 1199 info.si_signo = TARGET_SIGSEGV;
7f84a729
BS		 1200 info.si_errno = 0;
1201 /* XXX: check env->error_code */
1202 info.si_code = TARGET_SEGV_MAPERR;
1203 if (trapnr == TT_DFAULT)
1204 info._sifields._sigfault._addr = env->dmmuregs[4];
1205 else
8194f35a 1206 info._sifields._sigfault._addr = cpu_tsptr(env)->tpc;
624f7979 1207 queue_signal(env, info.si_signo, &info);
7f84a729
BS		 1208 }
1209 break;
27524dc3 1210#ifndef TARGET_ABI32
5bfb56b2
BS		 1211 case 0x16e:
1212 flush_windows(env);
1213 sparc64_get_context(env);
1214 break;
1215 case 0x16f:
1216 flush_windows(env);
1217 sparc64_set_context(env);
1218 break;
27524dc3 1219#endif
3475187d 1220#endif
48dc41eb
FB		 1221 case EXCP_INTERRUPT:
1222 /* just indicate that signals should be handled asap */
1223 break;
75f22e4e
RH		 1224 case TT_ILL_INSN:
1225 {
1226 info.si_signo = TARGET_SIGILL;
1227 info.si_errno = 0;
1228 info.si_code = TARGET_ILL_ILLOPC;
1229 info._sifields._sigfault._addr = env->pc;
1230 queue_signal(env, info.si_signo, &info);
1231 }
1232 break;
1fddef4b
FB		 1233 case EXCP_DEBUG:
1234 {
1235 int sig;
1236
1237 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1238 if (sig)
1239 {
1240 info.si_signo = sig;
1241 info.si_errno = 0;
1242 info.si_code = TARGET_TRAP_BRKPT;
624f7979 1243 queue_signal(env, info.si_signo, &info);
1fddef4b
FB		 1244 }
1245 }
1246 break;
060366c5
FB		 1247 default:
1248 printf ("Unhandled trap: 0x%x\n", trapnr);
7fe48483 1249 cpu_dump_state(env, stderr, fprintf, 0);
060366c5
FB		 1250 exit (1);
1251 }
1252 process_pending_signals (env);
1253 }
93ac68bc
FB		 1254}
1255
1256#endif
1257
67867308 1258#ifdef TARGET_PPC
05390248 1259static inline uint64_t cpu_ppc_get_tb(CPUPPCState *env)
9fddaa0c
FB		 1260{
1261 /* TO FIX */
1262 return 0;
1263}
3b46e624 1264
05390248 1265uint64_t cpu_ppc_load_tbl(CPUPPCState *env)
9fddaa0c 1266{
e3ea6529 1267 return cpu_ppc_get_tb(env);
9fddaa0c 1268}
3b46e624 1269
05390248 1270uint32_t cpu_ppc_load_tbu(CPUPPCState *env)
9fddaa0c
FB		 1271{
1272 return cpu_ppc_get_tb(env) >> 32;
1273}
3b46e624 1274
05390248 1275uint64_t cpu_ppc_load_atbl(CPUPPCState *env)
9fddaa0c 1276{
b711de95 1277 return cpu_ppc_get_tb(env);
9fddaa0c 1278}
5fafdf24 1279
05390248 1280uint32_t cpu_ppc_load_atbu(CPUPPCState *env)
9fddaa0c 1281{
a062e36c 1282 return cpu_ppc_get_tb(env) >> 32;
9fddaa0c 1283}
76a66253 1284
05390248 1285uint32_t cpu_ppc601_load_rtcu(CPUPPCState *env)
76a66253
JM		 1286__attribute__ (( alias ("cpu_ppc_load_tbu") ));
1287
05390248 1288uint32_t cpu_ppc601_load_rtcl(CPUPPCState *env)
9fddaa0c 1289{
76a66253 1290 return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
9fddaa0c 1291}
76a66253 1292
a750fc0b 1293/* XXX: to be fixed */
73b01960 1294int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, uint32_t *valp)
a750fc0b
JM		 1295{
1296 return -1;
1297}
1298
73b01960 1299int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, uint32_t val)
a750fc0b
JM		 1300{
1301 return -1;
1302}
1303
001faf32
BS		 1304#define EXCP_DUMP(env, fmt, ...) \
1305do { \
1306 fprintf(stderr, fmt , ## __VA_ARGS__); \
1307 cpu_dump_state(env, stderr, fprintf, 0); \
1308 qemu_log(fmt, ## __VA_ARGS__); \
eeacee4d 1309 if (qemu_log_enabled()) { \
430c7ec7 1310 log_cpu_state(env, 0); \
eeacee4d 1311 } \
e1833e1f
JM		 1312} while (0)
1313
56f066bb
NF		 1314static int do_store_exclusive(CPUPPCState *env)
1315{
1316 target_ulong addr;
1317 target_ulong page_addr;
1318 target_ulong val;
1319 int flags;
1320 int segv = 0;
1321
1322 addr = env->reserve_ea;
1323 page_addr = addr & TARGET_PAGE_MASK;
1324 start_exclusive();
1325 mmap_lock();
1326 flags = page_get_flags(page_addr);
1327 if ((flags & PAGE_READ) == 0) {
1328 segv = 1;
1329 } else {
1330 int reg = env->reserve_info & 0x1f;
1331 int size = (env->reserve_info >> 5) & 0xf;
1332 int stored = 0;
1333
1334 if (addr == env->reserve_addr) {
1335 switch (size) {
1336 case 1: segv = get_user_u8(val, addr); break;
1337 case 2: segv = get_user_u16(val, addr); break;
1338 case 4: segv = get_user_u32(val, addr); break;
1339#if defined(TARGET_PPC64)
1340 case 8: segv = get_user_u64(val, addr); break;
1341#endif
1342 default: abort();
1343 }
1344 if (!segv && val == env->reserve_val) {
1345 val = env->gpr[reg];
1346 switch (size) {
1347 case 1: segv = put_user_u8(val, addr); break;
1348 case 2: segv = put_user_u16(val, addr); break;
1349 case 4: segv = put_user_u32(val, addr); break;
1350#if defined(TARGET_PPC64)
1351 case 8: segv = put_user_u64(val, addr); break;
1352#endif
1353 default: abort();
1354 }
1355 if (!segv) {
1356 stored = 1;
1357 }
1358 }
1359 }
1360 env->crf[0] = (stored << 1) | xer_so;
1361 env->reserve_addr = (target_ulong)-1;
1362 }
1363 if (!segv) {
1364 env->nip += 4;
1365 }
1366 mmap_unlock();
1367 end_exclusive();
1368 return segv;
1369}
1370
67867308
FB		 1371void cpu_loop(CPUPPCState *env)
1372{
0315c31c 1373 CPUState *cs = CPU(ppc_env_get_cpu(env));
c227f099 1374 target_siginfo_t info;
61190b14 1375 int trapnr;
9e0e2f96 1376 target_ulong ret;
3b46e624 1377
67867308 1378 for(;;) {
0315c31c 1379 cpu_exec_start(cs);
67867308 1380 trapnr = cpu_ppc_exec(env);
0315c31c 1381 cpu_exec_end(cs);
67867308 1382 switch(trapnr) {
e1833e1f
JM		 1383 case POWERPC_EXCP_NONE:
1384 /* Just go on */
67867308 1385 break;
e1833e1f
JM		 1386 case POWERPC_EXCP_CRITICAL: /* Critical input */
1387 cpu_abort(env, "Critical interrupt while in user mode. "
1388 "Aborting\n");
61190b14 1389 break;
e1833e1f
JM		 1390 case POWERPC_EXCP_MCHECK: /* Machine check exception */
1391 cpu_abort(env, "Machine check exception while in user mode. "
1392 "Aborting\n");
1393 break;
1394 case POWERPC_EXCP_DSI: /* Data storage exception */
90e189ec 1395 EXCP_DUMP(env, "Invalid data memory access: 0x" TARGET_FMT_lx "\n",
e1833e1f
JM		 1396 env->spr[SPR_DAR]);
1397 /* XXX: check this. Seems bugged */
2be0071f
FB		 1398 switch (env->error_code & 0xFF000000) {
1399 case 0x40000000:
61190b14
FB		 1400 info.si_signo = TARGET_SIGSEGV;
1401 info.si_errno = 0;
1402 info.si_code = TARGET_SEGV_MAPERR;
1403 break;
2be0071f 1404 case 0x04000000:
61190b14
FB		 1405 info.si_signo = TARGET_SIGILL;
1406 info.si_errno = 0;
1407 info.si_code = TARGET_ILL_ILLADR;
1408 break;
2be0071f 1409 case 0x08000000:
61190b14
FB		 1410 info.si_signo = TARGET_SIGSEGV;
1411 info.si_errno = 0;
1412 info.si_code = TARGET_SEGV_ACCERR;
1413 break;
61190b14
FB		 1414 default:
1415 /* Let's send a regular segfault... */
e1833e1f
JM		 1416 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1417 env->error_code);
61190b14
FB		 1418 info.si_signo = TARGET_SIGSEGV;
1419 info.si_errno = 0;
1420 info.si_code = TARGET_SEGV_MAPERR;
1421 break;
1422 }
67867308 1423 info._sifields._sigfault._addr = env->nip;
624f7979 1424 queue_signal(env, info.si_signo, &info);
67867308 1425 break;
e1833e1f 1426 case POWERPC_EXCP_ISI: /* Instruction storage exception */
90e189ec
BS		 1427 EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" TARGET_FMT_lx
1428 "\n", env->spr[SPR_SRR0]);
e1833e1f 1429 /* XXX: check this */
2be0071f
FB		 1430 switch (env->error_code & 0xFF000000) {
1431 case 0x40000000:
61190b14 1432 info.si_signo = TARGET_SIGSEGV;
67867308 1433 info.si_errno = 0;
61190b14
FB		 1434 info.si_code = TARGET_SEGV_MAPERR;
1435 break;
2be0071f
FB		 1436 case 0x10000000:
1437 case 0x08000000:
61190b14
FB		 1438 info.si_signo = TARGET_SIGSEGV;
1439 info.si_errno = 0;
1440 info.si_code = TARGET_SEGV_ACCERR;
1441 break;
1442 default:
1443 /* Let's send a regular segfault... */
e1833e1f
JM		 1444 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1445 env->error_code);
61190b14
FB		 1446 info.si_signo = TARGET_SIGSEGV;
1447 info.si_errno = 0;
1448 info.si_code = TARGET_SEGV_MAPERR;
1449 break;
1450 }
1451 info._sifields._sigfault._addr = env->nip - 4;
624f7979 1452 queue_signal(env, info.si_signo, &info);
67867308 1453 break;
e1833e1f
JM		 1454 case POWERPC_EXCP_EXTERNAL: /* External input */
1455 cpu_abort(env, "External interrupt while in user mode. "
1456 "Aborting\n");
1457 break;
1458 case POWERPC_EXCP_ALIGN: /* Alignment exception */
1459 EXCP_DUMP(env, "Unaligned memory access\n");
1460 /* XXX: check this */
61190b14 1461 info.si_signo = TARGET_SIGBUS;
67867308 1462 info.si_errno = 0;
61190b14
FB		 1463 info.si_code = TARGET_BUS_ADRALN;
1464 info._sifields._sigfault._addr = env->nip - 4;
624f7979 1465 queue_signal(env, info.si_signo, &info);
67867308 1466 break;
e1833e1f
JM		 1467 case POWERPC_EXCP_PROGRAM: /* Program exception */
1468 /* XXX: check this */
61190b14 1469 switch (env->error_code & ~0xF) {
e1833e1f
JM		 1470 case POWERPC_EXCP_FP:
1471 EXCP_DUMP(env, "Floating point program exception\n");
61190b14
FB		 1472 info.si_signo = TARGET_SIGFPE;
1473 info.si_errno = 0;
1474 switch (env->error_code & 0xF) {
e1833e1f 1475 case POWERPC_EXCP_FP_OX:
61190b14
FB		 1476 info.si_code = TARGET_FPE_FLTOVF;
1477 break;
e1833e1f 1478 case POWERPC_EXCP_FP_UX:
61190b14
FB		 1479 info.si_code = TARGET_FPE_FLTUND;
1480 break;
e1833e1f
JM		 1481 case POWERPC_EXCP_FP_ZX:
1482 case POWERPC_EXCP_FP_VXZDZ:
61190b14
FB		 1483 info.si_code = TARGET_FPE_FLTDIV;
1484 break;
e1833e1f 1485 case POWERPC_EXCP_FP_XX:
61190b14
FB		 1486 info.si_code = TARGET_FPE_FLTRES;
1487 break;
e1833e1f 1488 case POWERPC_EXCP_FP_VXSOFT:
61190b14
FB		 1489 info.si_code = TARGET_FPE_FLTINV;
1490 break;
7c58044c 1491 case POWERPC_EXCP_FP_VXSNAN:
e1833e1f
JM		 1492 case POWERPC_EXCP_FP_VXISI:
1493 case POWERPC_EXCP_FP_VXIDI:
1494 case POWERPC_EXCP_FP_VXIMZ:
1495 case POWERPC_EXCP_FP_VXVC:
1496 case POWERPC_EXCP_FP_VXSQRT:
1497 case POWERPC_EXCP_FP_VXCVI:
61190b14
FB		 1498 info.si_code = TARGET_FPE_FLTSUB;
1499 break;
1500 default:
e1833e1f
JM		 1501 EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
1502 env->error_code);
1503 break;
61190b14 1504 }
e1833e1f
JM		 1505 break;
1506 case POWERPC_EXCP_INVAL:
1507 EXCP_DUMP(env, "Invalid instruction\n");
61190b14
FB		 1508 info.si_signo = TARGET_SIGILL;
1509 info.si_errno = 0;
1510 switch (env->error_code & 0xF) {
e1833e1f 1511 case POWERPC_EXCP_INVAL_INVAL:
61190b14
FB		 1512 info.si_code = TARGET_ILL_ILLOPC;
1513 break;
e1833e1f 1514 case POWERPC_EXCP_INVAL_LSWX:
a750fc0b 1515 info.si_code = TARGET_ILL_ILLOPN;
61190b14 1516 break;
e1833e1f 1517 case POWERPC_EXCP_INVAL_SPR:
61190b14
FB		 1518 info.si_code = TARGET_ILL_PRVREG;
1519 break;
e1833e1f 1520 case POWERPC_EXCP_INVAL_FP:
61190b14
FB		 1521 info.si_code = TARGET_ILL_COPROC;
1522 break;
1523 default:
e1833e1f
JM		 1524 EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
1525 env->error_code & 0xF);
61190b14
FB		 1526 info.si_code = TARGET_ILL_ILLADR;
1527 break;
1528 }
1529 break;
e1833e1f
JM		 1530 case POWERPC_EXCP_PRIV:
1531 EXCP_DUMP(env, "Privilege violation\n");
61190b14
FB		 1532 info.si_signo = TARGET_SIGILL;
1533 info.si_errno = 0;
1534 switch (env->error_code & 0xF) {
e1833e1f 1535 case POWERPC_EXCP_PRIV_OPC:
61190b14
FB		 1536 info.si_code = TARGET_ILL_PRVOPC;
1537 break;
e1833e1f 1538 case POWERPC_EXCP_PRIV_REG:
61190b14 1539 info.si_code = TARGET_ILL_PRVREG;
e1833e1f 1540 break;
61190b14 1541 default:
e1833e1f
JM		 1542 EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
1543 env->error_code & 0xF);
61190b14
FB		 1544 info.si_code = TARGET_ILL_PRVOPC;
1545 break;
1546 }
1547 break;
e1833e1f
JM		 1548 case POWERPC_EXCP_TRAP:
1549 cpu_abort(env, "Tried to call a TRAP\n");
1550 break;
61190b14
FB		 1551 default:
1552 /* Should not happen ! */
e1833e1f
JM		 1553 cpu_abort(env, "Unknown program exception (%02x)\n",
1554 env->error_code);
1555 break;
61190b14
FB		 1556 }
1557 info._sifields._sigfault._addr = env->nip - 4;
624f7979 1558 queue_signal(env, info.si_signo, &info);
67867308 1559 break;
e1833e1f
JM		 1560 case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
1561 EXCP_DUMP(env, "No floating point allowed\n");
61190b14 1562 info.si_signo = TARGET_SIGILL;
67867308 1563 info.si_errno = 0;
61190b14
FB		 1564 info.si_code = TARGET_ILL_COPROC;
1565 info._sifields._sigfault._addr = env->nip - 4;
624f7979 1566 queue_signal(env, info.si_signo, &info);
67867308 1567 break;
e1833e1f
JM		 1568 case POWERPC_EXCP_SYSCALL: /* System call exception */
1569 cpu_abort(env, "Syscall exception while in user mode. "
1570 "Aborting\n");
61190b14 1571 break;
e1833e1f
JM		 1572 case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
1573 EXCP_DUMP(env, "No APU instruction allowed\n");
1574 info.si_signo = TARGET_SIGILL;
1575 info.si_errno = 0;
1576 info.si_code = TARGET_ILL_COPROC;
1577 info._sifields._sigfault._addr = env->nip - 4;
624f7979 1578 queue_signal(env, info.si_signo, &info);
61190b14 1579 break;
e1833e1f
JM		 1580 case POWERPC_EXCP_DECR: /* Decrementer exception */
1581 cpu_abort(env, "Decrementer interrupt while in user mode. "
1582 "Aborting\n");
61190b14 1583 break;
e1833e1f
JM		 1584 case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
1585 cpu_abort(env, "Fix interval timer interrupt while in user mode. "
1586 "Aborting\n");
1587 break;
1588 case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
1589 cpu_abort(env, "Watchdog timer interrupt while in user mode. "
1590 "Aborting\n");
1591 break;
1592 case POWERPC_EXCP_DTLB: /* Data TLB error */
1593 cpu_abort(env, "Data TLB exception while in user mode. "
1594 "Aborting\n");
1595 break;
1596 case POWERPC_EXCP_ITLB: /* Instruction TLB error */
1597 cpu_abort(env, "Instruction TLB exception while in user mode. "
1598 "Aborting\n");
1599 break;
e1833e1f
JM		 1600 case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */
1601 EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
1602 info.si_signo = TARGET_SIGILL;
1603 info.si_errno = 0;
1604 info.si_code = TARGET_ILL_COPROC;
1605 info._sifields._sigfault._addr = env->nip - 4;
624f7979 1606 queue_signal(env, info.si_signo, &info);
e1833e1f
JM		 1607 break;
1608 case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */
1609 cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
1610 break;
1611 case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */
1612 cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
1613 break;
1614 case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */
1615 cpu_abort(env, "Performance monitor exception not handled\n");
1616 break;
1617 case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
1618 cpu_abort(env, "Doorbell interrupt while in user mode. "
1619 "Aborting\n");
1620 break;
1621 case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
1622 cpu_abort(env, "Doorbell critical interrupt while in user mode. "
1623 "Aborting\n");
1624 break;
1625 case POWERPC_EXCP_RESET: /* System reset exception */
1626 cpu_abort(env, "Reset interrupt while in user mode. "
1627 "Aborting\n");
1628 break;
e1833e1f
JM		 1629 case POWERPC_EXCP_DSEG: /* Data segment exception */
1630 cpu_abort(env, "Data segment exception while in user mode. "
1631 "Aborting\n");
1632 break;
1633 case POWERPC_EXCP_ISEG: /* Instruction segment exception */
1634 cpu_abort(env, "Instruction segment exception "
1635 "while in user mode. Aborting\n");
1636 break;
e85e7c6e 1637 /* PowerPC 64 with hypervisor mode support */
e1833e1f
JM		 1638 case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
1639 cpu_abort(env, "Hypervisor decrementer interrupt "
1640 "while in user mode. Aborting\n");
1641 break;
e1833e1f
JM		 1642 case POWERPC_EXCP_TRACE: /* Trace exception */
1643 /* Nothing to do:
1644 * we use this exception to emulate step-by-step execution mode.
1645 */
1646 break;
e85e7c6e 1647 /* PowerPC 64 with hypervisor mode support */
e1833e1f
JM		 1648 case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
1649 cpu_abort(env, "Hypervisor data storage exception "
1650 "while in user mode. Aborting\n");
1651 break;
1652 case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */
1653 cpu_abort(env, "Hypervisor instruction storage exception "
1654 "while in user mode. Aborting\n");
1655 break;
1656 case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
1657 cpu_abort(env, "Hypervisor data segment exception "
1658 "while in user mode. Aborting\n");
1659 break;
1660 case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */
1661 cpu_abort(env, "Hypervisor instruction segment exception "
1662 "while in user mode. Aborting\n");
1663 break;
e1833e1f
JM		 1664 case POWERPC_EXCP_VPU: /* Vector unavailable exception */
1665 EXCP_DUMP(env, "No Altivec instructions allowed\n");
1666 info.si_signo = TARGET_SIGILL;
1667 info.si_errno = 0;
1668 info.si_code = TARGET_ILL_COPROC;
1669 info._sifields._sigfault._addr = env->nip - 4;
624f7979 1670 queue_signal(env, info.si_signo, &info);
e1833e1f
JM		 1671 break;
1672 case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */
b4916d7b 1673 cpu_abort(env, "Programmable interval timer interrupt "
e1833e1f
JM		 1674 "while in user mode. Aborting\n");
1675 break;
1676 case POWERPC_EXCP_IO: /* IO error exception */
1677 cpu_abort(env, "IO error exception while in user mode. "
1678 "Aborting\n");
1679 break;
1680 case POWERPC_EXCP_RUNM: /* Run mode exception */
1681 cpu_abort(env, "Run mode exception while in user mode. "
1682 "Aborting\n");
1683 break;
1684 case POWERPC_EXCP_EMUL: /* Emulation trap exception */
1685 cpu_abort(env, "Emulation trap exception not handled\n");
1686 break;
1687 case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
1688 cpu_abort(env, "Instruction fetch TLB exception "
1689 "while in user-mode. Aborting");
1690 break;
1691 case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
1692 cpu_abort(env, "Data load TLB exception while in user-mode. "
1693 "Aborting");
1694 break;
1695 case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
1696 cpu_abort(env, "Data store TLB exception while in user-mode. "
1697 "Aborting");
1698 break;
1699 case POWERPC_EXCP_FPA: /* Floating-point assist exception */
1700 cpu_abort(env, "Floating-point assist exception not handled\n");
1701 break;
1702 case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
1703 cpu_abort(env, "Instruction address breakpoint exception "
1704 "not handled\n");
1705 break;
1706 case POWERPC_EXCP_SMI: /* System management interrupt */
1707 cpu_abort(env, "System management interrupt while in user mode. "
1708 "Aborting\n");
1709 break;
1710 case POWERPC_EXCP_THERM: /* Thermal interrupt */
1711 cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
1712 "Aborting\n");
1713 break;
1714 case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */
1715 cpu_abort(env, "Performance monitor exception not handled\n");
1716 break;
1717 case POWERPC_EXCP_VPUA: /* Vector assist exception */
1718 cpu_abort(env, "Vector assist exception not handled\n");
1719 break;
1720 case POWERPC_EXCP_SOFTP: /* Soft patch exception */
1721 cpu_abort(env, "Soft patch exception not handled\n");
1722 break;
1723 case POWERPC_EXCP_MAINT: /* Maintenance exception */
1724 cpu_abort(env, "Maintenance exception while in user mode. "
1725 "Aborting\n");
1726 break;
1727 case POWERPC_EXCP_STOP: /* stop translation */
1728 /* We did invalidate the instruction cache. Go on */
1729 break;
1730 case POWERPC_EXCP_BRANCH: /* branch instruction: */
1731 /* We just stopped because of a branch. Go on */
1732 break;
1733 case POWERPC_EXCP_SYSCALL_USER:
1734 /* system call in user-mode emulation */
1735 /* WARNING:
1736 * PPC ABI uses overflow flag in cr0 to signal an error
1737 * in syscalls.
1738 */
e1833e1f
JM		 1739 env->crf[0] &= ~0x1;
1740 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
1741 env->gpr[5], env->gpr[6], env->gpr[7],
5945cfcb 1742 env->gpr[8], 0, 0);
9e0e2f96 1743 if (ret == (target_ulong)(-TARGET_QEMU_ESIGRETURN)) {
bcd4933a
NF		 1744 /* Returning from a successful sigreturn syscall.
1745 Avoid corrupting register state. */
1746 break;
1747 }
9e0e2f96 1748 if (ret > (target_ulong)(-515)) {
e1833e1f
JM		 1749 env->crf[0] |= 0x1;
1750 ret = -ret;
61190b14 1751 }
e1833e1f 1752 env->gpr[3] = ret;
e1833e1f 1753 break;
56f066bb
NF		 1754 case POWERPC_EXCP_STCX:
1755 if (do_store_exclusive(env)) {
1756 info.si_signo = TARGET_SIGSEGV;
1757 info.si_errno = 0;
1758 info.si_code = TARGET_SEGV_MAPERR;
1759 info._sifields._sigfault._addr = env->nip;
1760 queue_signal(env, info.si_signo, &info);
1761 }
1762 break;
71f75756
AJ		 1763 case EXCP_DEBUG:
1764 {
1765 int sig;
1766
1767 sig = gdb_handlesig(env, TARGET_SIGTRAP);
1768 if (sig) {
1769 info.si_signo = sig;
1770 info.si_errno = 0;
1771 info.si_code = TARGET_TRAP_BRKPT;
1772 queue_signal(env, info.si_signo, &info);
1773 }
1774 }
1775 break;
56ba31ff
JM		 1776 case EXCP_INTERRUPT:
1777 /* just indicate that signals should be handled asap */
1778 break;
e1833e1f
JM		 1779 default:
1780 cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
1781 break;
67867308
FB		 1782 }
1783 process_pending_signals(env);
1784 }
1785}
1786#endif
1787
048f6b4d
FB		 1788#ifdef TARGET_MIPS
1789
ff4f7382
RH		 1790# ifdef TARGET_ABI_MIPSO32
1791# define MIPS_SYS(name, args) args,
048f6b4d 1792static const uint8_t mips_syscall_args[] = {
29fb0f25 1793 MIPS_SYS(sys_syscall , 8) /* 4000 */
048f6b4d
FB		 1794 MIPS_SYS(sys_exit , 1)
1795 MIPS_SYS(sys_fork , 0)
1796 MIPS_SYS(sys_read , 3)
1797 MIPS_SYS(sys_write , 3)
1798 MIPS_SYS(sys_open , 3) /* 4005 */
1799 MIPS_SYS(sys_close , 1)
1800 MIPS_SYS(sys_waitpid , 3)
1801 MIPS_SYS(sys_creat , 2)
1802 MIPS_SYS(sys_link , 2)
1803 MIPS_SYS(sys_unlink , 1) /* 4010 */
1804 MIPS_SYS(sys_execve , 0)
1805 MIPS_SYS(sys_chdir , 1)
1806 MIPS_SYS(sys_time , 1)
1807 MIPS_SYS(sys_mknod , 3)
1808 MIPS_SYS(sys_chmod , 2) /* 4015 */
1809 MIPS_SYS(sys_lchown , 3)
1810 MIPS_SYS(sys_ni_syscall , 0)
1811 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1812 MIPS_SYS(sys_lseek , 3)
1813 MIPS_SYS(sys_getpid , 0) /* 4020 */
1814 MIPS_SYS(sys_mount , 5)
1815 MIPS_SYS(sys_oldumount , 1)
1816 MIPS_SYS(sys_setuid , 1)
1817 MIPS_SYS(sys_getuid , 0)
1818 MIPS_SYS(sys_stime , 1) /* 4025 */
1819 MIPS_SYS(sys_ptrace , 4)
1820 MIPS_SYS(sys_alarm , 1)
1821 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1822 MIPS_SYS(sys_pause , 0)
1823 MIPS_SYS(sys_utime , 2) /* 4030 */
1824 MIPS_SYS(sys_ni_syscall , 0)
1825 MIPS_SYS(sys_ni_syscall , 0)
1826 MIPS_SYS(sys_access , 2)
1827 MIPS_SYS(sys_nice , 1)
1828 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1829 MIPS_SYS(sys_sync , 0)
1830 MIPS_SYS(sys_kill , 2)
1831 MIPS_SYS(sys_rename , 2)
1832 MIPS_SYS(sys_mkdir , 2)
1833 MIPS_SYS(sys_rmdir , 1) /* 4040 */
1834 MIPS_SYS(sys_dup , 1)
1835 MIPS_SYS(sys_pipe , 0)
1836 MIPS_SYS(sys_times , 1)
1837 MIPS_SYS(sys_ni_syscall , 0)
1838 MIPS_SYS(sys_brk , 1) /* 4045 */
1839 MIPS_SYS(sys_setgid , 1)
1840 MIPS_SYS(sys_getgid , 0)
1841 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1842 MIPS_SYS(sys_geteuid , 0)
1843 MIPS_SYS(sys_getegid , 0) /* 4050 */
1844 MIPS_SYS(sys_acct , 0)
1845 MIPS_SYS(sys_umount , 2)
1846 MIPS_SYS(sys_ni_syscall , 0)
1847 MIPS_SYS(sys_ioctl , 3)
1848 MIPS_SYS(sys_fcntl , 3) /* 4055 */
1849 MIPS_SYS(sys_ni_syscall , 2)
1850 MIPS_SYS(sys_setpgid , 2)
1851 MIPS_SYS(sys_ni_syscall , 0)
1852 MIPS_SYS(sys_olduname , 1)
1853 MIPS_SYS(sys_umask , 1) /* 4060 */
1854 MIPS_SYS(sys_chroot , 1)
1855 MIPS_SYS(sys_ustat , 2)
1856 MIPS_SYS(sys_dup2 , 2)
1857 MIPS_SYS(sys_getppid , 0)
1858 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1859 MIPS_SYS(sys_setsid , 0)
1860 MIPS_SYS(sys_sigaction , 3)
1861 MIPS_SYS(sys_sgetmask , 0)
1862 MIPS_SYS(sys_ssetmask , 1)
1863 MIPS_SYS(sys_setreuid , 2) /* 4070 */
1864 MIPS_SYS(sys_setregid , 2)
1865 MIPS_SYS(sys_sigsuspend , 0)
1866 MIPS_SYS(sys_sigpending , 1)
1867 MIPS_SYS(sys_sethostname , 2)
1868 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1869 MIPS_SYS(sys_getrlimit , 2)
1870 MIPS_SYS(sys_getrusage , 2)
1871 MIPS_SYS(sys_gettimeofday, 2)
1872 MIPS_SYS(sys_settimeofday, 2)
1873 MIPS_SYS(sys_getgroups , 2) /* 4080 */
1874 MIPS_SYS(sys_setgroups , 2)
1875 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1876 MIPS_SYS(sys_symlink , 2)
1877 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1878 MIPS_SYS(sys_readlink , 3) /* 4085 */
1879 MIPS_SYS(sys_uselib , 1)
1880 MIPS_SYS(sys_swapon , 2)
1881 MIPS_SYS(sys_reboot , 3)
1882 MIPS_SYS(old_readdir , 3)
1883 MIPS_SYS(old_mmap , 6) /* 4090 */
1884 MIPS_SYS(sys_munmap , 2)
1885 MIPS_SYS(sys_truncate , 2)
1886 MIPS_SYS(sys_ftruncate , 2)
1887 MIPS_SYS(sys_fchmod , 2)
1888 MIPS_SYS(sys_fchown , 3) /* 4095 */
1889 MIPS_SYS(sys_getpriority , 2)
1890 MIPS_SYS(sys_setpriority , 3)
1891 MIPS_SYS(sys_ni_syscall , 0)
1892 MIPS_SYS(sys_statfs , 2)
1893 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1894 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1895 MIPS_SYS(sys_socketcall , 2)
1896 MIPS_SYS(sys_syslog , 3)
1897 MIPS_SYS(sys_setitimer , 3)
1898 MIPS_SYS(sys_getitimer , 2) /* 4105 */
1899 MIPS_SYS(sys_newstat , 2)
1900 MIPS_SYS(sys_newlstat , 2)
1901 MIPS_SYS(sys_newfstat , 2)
1902 MIPS_SYS(sys_uname , 1)
1903 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1904 MIPS_SYS(sys_vhangup , 0)
1905 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1906 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1907 MIPS_SYS(sys_wait4 , 4)
1908 MIPS_SYS(sys_swapoff , 1) /* 4115 */
1909 MIPS_SYS(sys_sysinfo , 1)
1910 MIPS_SYS(sys_ipc , 6)
1911 MIPS_SYS(sys_fsync , 1)
1912 MIPS_SYS(sys_sigreturn , 0)
18113962 1913 MIPS_SYS(sys_clone , 6) /* 4120 */
048f6b4d
FB		 1914 MIPS_SYS(sys_setdomainname, 2)
1915 MIPS_SYS(sys_newuname , 1)
1916 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1917 MIPS_SYS(sys_adjtimex , 1)
1918 MIPS_SYS(sys_mprotect , 3) /* 4125 */
1919 MIPS_SYS(sys_sigprocmask , 3)
1920 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1921 MIPS_SYS(sys_init_module , 5)
1922 MIPS_SYS(sys_delete_module, 1)
1923 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1924 MIPS_SYS(sys_quotactl , 0)
1925 MIPS_SYS(sys_getpgid , 1)
1926 MIPS_SYS(sys_fchdir , 1)
1927 MIPS_SYS(sys_bdflush , 2)
1928 MIPS_SYS(sys_sysfs , 3) /* 4135 */
1929 MIPS_SYS(sys_personality , 1)
1930 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1931 MIPS_SYS(sys_setfsuid , 1)
1932 MIPS_SYS(sys_setfsgid , 1)
1933 MIPS_SYS(sys_llseek , 5) /* 4140 */
1934 MIPS_SYS(sys_getdents , 3)
1935 MIPS_SYS(sys_select , 5)
1936 MIPS_SYS(sys_flock , 2)
1937 MIPS_SYS(sys_msync , 3)
1938 MIPS_SYS(sys_readv , 3) /* 4145 */
1939 MIPS_SYS(sys_writev , 3)
1940 MIPS_SYS(sys_cacheflush , 3)
1941 MIPS_SYS(sys_cachectl , 3)
1942 MIPS_SYS(sys_sysmips , 4)
1943 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1944 MIPS_SYS(sys_getsid , 1)
1945 MIPS_SYS(sys_fdatasync , 0)
1946 MIPS_SYS(sys_sysctl , 1)
1947 MIPS_SYS(sys_mlock , 2)
1948 MIPS_SYS(sys_munlock , 2) /* 4155 */
1949 MIPS_SYS(sys_mlockall , 1)
1950 MIPS_SYS(sys_munlockall , 0)
1951 MIPS_SYS(sys_sched_setparam, 2)
1952 MIPS_SYS(sys_sched_getparam, 2)
1953 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1954 MIPS_SYS(sys_sched_getscheduler, 1)
1955 MIPS_SYS(sys_sched_yield , 0)
1956 MIPS_SYS(sys_sched_get_priority_max, 1)
1957 MIPS_SYS(sys_sched_get_priority_min, 1)
1958 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1959 MIPS_SYS(sys_nanosleep, 2)
1960 MIPS_SYS(sys_mremap , 4)
1961 MIPS_SYS(sys_accept , 3)
1962 MIPS_SYS(sys_bind , 3)
1963 MIPS_SYS(sys_connect , 3) /* 4170 */
1964 MIPS_SYS(sys_getpeername , 3)
1965 MIPS_SYS(sys_getsockname , 3)
1966 MIPS_SYS(sys_getsockopt , 5)
1967 MIPS_SYS(sys_listen , 2)
1968 MIPS_SYS(sys_recv , 4) /* 4175 */
1969 MIPS_SYS(sys_recvfrom , 6)
1970 MIPS_SYS(sys_recvmsg , 3)
1971 MIPS_SYS(sys_send , 4)
1972 MIPS_SYS(sys_sendmsg , 3)
1973 MIPS_SYS(sys_sendto , 6) /* 4180 */
1974 MIPS_SYS(sys_setsockopt , 5)
1975 MIPS_SYS(sys_shutdown , 2)
1976 MIPS_SYS(sys_socket , 3)
1977 MIPS_SYS(sys_socketpair , 4)
1978 MIPS_SYS(sys_setresuid , 3) /* 4185 */
1979 MIPS_SYS(sys_getresuid , 3)
1980 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1981 MIPS_SYS(sys_poll , 3)
1982 MIPS_SYS(sys_nfsservctl , 3)
1983 MIPS_SYS(sys_setresgid , 3) /* 4190 */
1984 MIPS_SYS(sys_getresgid , 3)
1985 MIPS_SYS(sys_prctl , 5)
1986 MIPS_SYS(sys_rt_sigreturn, 0)
1987 MIPS_SYS(sys_rt_sigaction, 4)
1988 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1989 MIPS_SYS(sys_rt_sigpending, 2)
1990 MIPS_SYS(sys_rt_sigtimedwait, 4)
1991 MIPS_SYS(sys_rt_sigqueueinfo, 3)
1992 MIPS_SYS(sys_rt_sigsuspend, 0)
1993 MIPS_SYS(sys_pread64 , 6) /* 4200 */
1994 MIPS_SYS(sys_pwrite64 , 6)
1995 MIPS_SYS(sys_chown , 3)
1996 MIPS_SYS(sys_getcwd , 2)
1997 MIPS_SYS(sys_capget , 2)
1998 MIPS_SYS(sys_capset , 2) /* 4205 */
053ebb27 1999 MIPS_SYS(sys_sigaltstack , 2)
048f6b4d
FB		 2000 MIPS_SYS(sys_sendfile , 4)
2001 MIPS_SYS(sys_ni_syscall , 0)
2002 MIPS_SYS(sys_ni_syscall , 0)
2003 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
2004 MIPS_SYS(sys_truncate64 , 4)
2005 MIPS_SYS(sys_ftruncate64 , 4)
2006 MIPS_SYS(sys_stat64 , 2)
2007 MIPS_SYS(sys_lstat64 , 2)
2008 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
2009 MIPS_SYS(sys_pivot_root , 2)
2010 MIPS_SYS(sys_mincore , 3)
2011 MIPS_SYS(sys_madvise , 3)
2012 MIPS_SYS(sys_getdents64 , 3)
2013 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
2014 MIPS_SYS(sys_ni_syscall , 0)
2015 MIPS_SYS(sys_gettid , 0)
2016 MIPS_SYS(sys_readahead , 5)
2017 MIPS_SYS(sys_setxattr , 5)
2018 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
2019 MIPS_SYS(sys_fsetxattr , 5)
2020 MIPS_SYS(sys_getxattr , 4)
2021 MIPS_SYS(sys_lgetxattr , 4)
2022 MIPS_SYS(sys_fgetxattr , 4)
2023 MIPS_SYS(sys_listxattr , 3) /* 4230 */
2024 MIPS_SYS(sys_llistxattr , 3)
2025 MIPS_SYS(sys_flistxattr , 3)
2026 MIPS_SYS(sys_removexattr , 2)
2027 MIPS_SYS(sys_lremovexattr, 2)
2028 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
2029 MIPS_SYS(sys_tkill , 2)
2030 MIPS_SYS(sys_sendfile64 , 5)
2031 MIPS_SYS(sys_futex , 2)
2032 MIPS_SYS(sys_sched_setaffinity, 3)
2033 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
2034 MIPS_SYS(sys_io_setup , 2)
2035 MIPS_SYS(sys_io_destroy , 1)
2036 MIPS_SYS(sys_io_getevents, 5)
2037 MIPS_SYS(sys_io_submit , 3)
2038 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
2039 MIPS_SYS(sys_exit_group , 1)
2040 MIPS_SYS(sys_lookup_dcookie, 3)
2041 MIPS_SYS(sys_epoll_create, 1)
2042 MIPS_SYS(sys_epoll_ctl , 4)
2043 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
2044 MIPS_SYS(sys_remap_file_pages, 5)
2045 MIPS_SYS(sys_set_tid_address, 1)
2046 MIPS_SYS(sys_restart_syscall, 0)
2047 MIPS_SYS(sys_fadvise64_64, 7)
2048 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
2049 MIPS_SYS(sys_fstatfs64 , 2)
2050 MIPS_SYS(sys_timer_create, 3)
2051 MIPS_SYS(sys_timer_settime, 4)
2052 MIPS_SYS(sys_timer_gettime, 2)
2053 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
2054 MIPS_SYS(sys_timer_delete, 1)
2055 MIPS_SYS(sys_clock_settime, 2)
2056 MIPS_SYS(sys_clock_gettime, 2)
2057 MIPS_SYS(sys_clock_getres, 2)
2058 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
2059 MIPS_SYS(sys_tgkill , 3)
2060 MIPS_SYS(sys_utimes , 2)
2061 MIPS_SYS(sys_mbind , 4)
2062 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
2063 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
2064 MIPS_SYS(sys_mq_open , 4)
2065 MIPS_SYS(sys_mq_unlink , 1)
2066 MIPS_SYS(sys_mq_timedsend, 5)
2067 MIPS_SYS(sys_mq_timedreceive, 5)
2068 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
2069 MIPS_SYS(sys_mq_getsetattr, 3)
2070 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
2071 MIPS_SYS(sys_waitid , 4)
2072 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
2073 MIPS_SYS(sys_add_key , 5)
388bb21a 2074 MIPS_SYS(sys_request_key, 4)
048f6b4d 2075 MIPS_SYS(sys_keyctl , 5)
6f5b89a0 2076 MIPS_SYS(sys_set_thread_area, 1)
388bb21a
TS		 2077 MIPS_SYS(sys_inotify_init, 0)
2078 MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
2079 MIPS_SYS(sys_inotify_rm_watch, 2)
2080 MIPS_SYS(sys_migrate_pages, 4)
2081 MIPS_SYS(sys_openat, 4)
2082 MIPS_SYS(sys_mkdirat, 3)
2083 MIPS_SYS(sys_mknodat, 4) /* 4290 */
2084 MIPS_SYS(sys_fchownat, 5)
2085 MIPS_SYS(sys_futimesat, 3)
2086 MIPS_SYS(sys_fstatat64, 4)
2087 MIPS_SYS(sys_unlinkat, 3)
2088 MIPS_SYS(sys_renameat, 4) /* 4295 */
2089 MIPS_SYS(sys_linkat, 5)
2090 MIPS_SYS(sys_symlinkat, 3)
2091 MIPS_SYS(sys_readlinkat, 4)
2092 MIPS_SYS(sys_fchmodat, 3)
2093 MIPS_SYS(sys_faccessat, 3) /* 4300 */
2094 MIPS_SYS(sys_pselect6, 6)
2095 MIPS_SYS(sys_ppoll, 5)
2096 MIPS_SYS(sys_unshare, 1)
2097 MIPS_SYS(sys_splice, 4)
2098 MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
2099 MIPS_SYS(sys_tee, 4)
2100 MIPS_SYS(sys_vmsplice, 4)
2101 MIPS_SYS(sys_move_pages, 6)
2102 MIPS_SYS(sys_set_robust_list, 2)
2103 MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
2104 MIPS_SYS(sys_kexec_load, 4)
2105 MIPS_SYS(sys_getcpu, 3)
2106 MIPS_SYS(sys_epoll_pwait, 6)
2107 MIPS_SYS(sys_ioprio_set, 3)
2108 MIPS_SYS(sys_ioprio_get, 2)
d979e8eb
PM		 2109 MIPS_SYS(sys_utimensat, 4)
2110 MIPS_SYS(sys_signalfd, 3)
2111 MIPS_SYS(sys_ni_syscall, 0) /* was timerfd */
2112 MIPS_SYS(sys_eventfd, 1)
2113 MIPS_SYS(sys_fallocate, 6) /* 4320 */
2114 MIPS_SYS(sys_timerfd_create, 2)
2115 MIPS_SYS(sys_timerfd_gettime, 2)
2116 MIPS_SYS(sys_timerfd_settime, 4)
2117 MIPS_SYS(sys_signalfd4, 4)
2118 MIPS_SYS(sys_eventfd2, 2) /* 4325 */
2119 MIPS_SYS(sys_epoll_create1, 1)
2120 MIPS_SYS(sys_dup3, 3)
2121 MIPS_SYS(sys_pipe2, 2)
2122 MIPS_SYS(sys_inotify_init1, 1)
2123 MIPS_SYS(sys_preadv, 6) /* 4330 */
2124 MIPS_SYS(sys_pwritev, 6)
2125 MIPS_SYS(sys_rt_tgsigqueueinfo, 4)
2126 MIPS_SYS(sys_perf_event_open, 5)
2127 MIPS_SYS(sys_accept4, 4)
2128 MIPS_SYS(sys_recvmmsg, 5) /* 4335 */
2129 MIPS_SYS(sys_fanotify_init, 2)
2130 MIPS_SYS(sys_fanotify_mark, 6)
2131 MIPS_SYS(sys_prlimit64, 4)
2132 MIPS_SYS(sys_name_to_handle_at, 5)
2133 MIPS_SYS(sys_open_by_handle_at, 3) /* 4340 */
2134 MIPS_SYS(sys_clock_adjtime, 2)
2135 MIPS_SYS(sys_syncfs, 1)
048f6b4d 2136};
ff4f7382
RH		 2137# undef MIPS_SYS
2138# endif /* O32 */
048f6b4d 2139
590bc601
PB		 2140static int do_store_exclusive(CPUMIPSState *env)
2141{
2142 target_ulong addr;
2143 target_ulong page_addr;
2144 target_ulong val;
2145 int flags;
2146 int segv = 0;
2147 int reg;
2148 int d;
2149
5499b6ff 2150 addr = env->lladdr;
590bc601
PB		 2151 page_addr = addr & TARGET_PAGE_MASK;
2152 start_exclusive();
2153 mmap_lock();
2154 flags = page_get_flags(page_addr);
2155 if ((flags & PAGE_READ) == 0) {
2156 segv = 1;
2157 } else {
2158 reg = env->llreg & 0x1f;
2159 d = (env->llreg & 0x20) != 0;
2160 if (d) {
2161 segv = get_user_s64(val, addr);
2162 } else {
2163 segv = get_user_s32(val, addr);
2164 }
2165 if (!segv) {
2166 if (val != env->llval) {
2167 env->active_tc.gpr[reg] = 0;
2168 } else {
2169 if (d) {
2170 segv = put_user_u64(env->llnewval, addr);
2171 } else {
2172 segv = put_user_u32(env->llnewval, addr);
2173 }
2174 if (!segv) {
2175 env->active_tc.gpr[reg] = 1;
2176 }
2177 }
2178 }
2179 }
5499b6ff 2180 env->lladdr = -1;
590bc601
PB		 2181 if (!segv) {
2182 env->active_tc.PC += 4;
2183 }
2184 mmap_unlock();
2185 end_exclusive();
2186 return segv;
2187}
2188
54b2f42c
MI		 2189/* Break codes */
2190enum {
2191 BRK_OVERFLOW = 6,
2192 BRK_DIVZERO = 7
2193};
2194
2195static int do_break(CPUMIPSState *env, target_siginfo_t *info,
2196 unsigned int code)
2197{
2198 int ret = -1;
2199
2200 switch (code) {
2201 case BRK_OVERFLOW:
2202 case BRK_DIVZERO:
2203 info->si_signo = TARGET_SIGFPE;
2204 info->si_errno = 0;
2205 info->si_code = (code == BRK_OVERFLOW) ? FPE_INTOVF : FPE_INTDIV;
2206 queue_signal(env, info->si_signo, &*info);
2207 ret = 0;
2208 break;
2209 default:
2210 break;
2211 }
2212
2213 return ret;
2214}
2215
048f6b4d
FB		 2216void cpu_loop(CPUMIPSState *env)
2217{
0315c31c 2218 CPUState *cs = CPU(mips_env_get_cpu(env));
c227f099 2219 target_siginfo_t info;
ff4f7382
RH		 2220 int trapnr;
2221 abi_long ret;
2222# ifdef TARGET_ABI_MIPSO32
048f6b4d 2223 unsigned int syscall_num;
ff4f7382 2224# endif
048f6b4d
FB		 2225
2226 for(;;) {
0315c31c 2227 cpu_exec_start(cs);
048f6b4d 2228 trapnr = cpu_mips_exec(env);
0315c31c 2229 cpu_exec_end(cs);
048f6b4d
FB		 2230 switch(trapnr) {
2231 case EXCP_SYSCALL:
b5dc7732 2232 env->active_tc.PC += 4;
ff4f7382
RH		 2233# ifdef TARGET_ABI_MIPSO32
2234 syscall_num = env->active_tc.gpr[2] - 4000;
388bb21a 2235 if (syscall_num >= sizeof(mips_syscall_args)) {
7c2f6157 2236 ret = -TARGET_ENOSYS;
388bb21a
TS		 2237 } else {
2238 int nb_args;
992f48a0
BS		 2239 abi_ulong sp_reg;
2240 abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
388bb21a
TS		 2241
2242 nb_args = mips_syscall_args[syscall_num];
b5dc7732 2243 sp_reg = env->active_tc.gpr[29];
388bb21a
TS		 2244 switch (nb_args) {
2245 /* these arguments are taken from the stack */
94c19610
ACH		 2246 case 8:
2247 if ((ret = get_user_ual(arg8, sp_reg + 28)) != 0) {
2248 goto done_syscall;
2249 }
2250 case 7:
2251 if ((ret = get_user_ual(arg7, sp_reg + 24)) != 0) {
2252 goto done_syscall;
2253 }
2254 case 6:
2255 if ((ret = get_user_ual(arg6, sp_reg + 20)) != 0) {
2256 goto done_syscall;
2257 }
2258 case 5:
2259 if ((ret = get_user_ual(arg5, sp_reg + 16)) != 0) {
2260 goto done_syscall;
2261 }
388bb21a
TS		 2262 default:
2263 break;
048f6b4d 2264 }
b5dc7732
TS		 2265 ret = do_syscall(env, env->active_tc.gpr[2],
2266 env->active_tc.gpr[4],
2267 env->active_tc.gpr[5],
2268 env->active_tc.gpr[6],
2269 env->active_tc.gpr[7],
5945cfcb 2270 arg5, arg6, arg7, arg8);
388bb21a 2271 }
94c19610 2272done_syscall:
ff4f7382
RH		 2273# else
2274 ret = do_syscall(env, env->active_tc.gpr[2],
2275 env->active_tc.gpr[4], env->active_tc.gpr[5],
2276 env->active_tc.gpr[6], env->active_tc.gpr[7],
2277 env->active_tc.gpr[8], env->active_tc.gpr[9],
2278 env->active_tc.gpr[10], env->active_tc.gpr[11]);
2279# endif /* O32 */
0b1bcb00
PB		 2280 if (ret == -TARGET_QEMU_ESIGRETURN) {
2281 /* Returning from a successful sigreturn syscall.
2282 Avoid clobbering register state. */
2283 break;
2284 }
ff4f7382 2285 if ((abi_ulong)ret >= (abi_ulong)-1133) {
b5dc7732 2286 env->active_tc.gpr[7] = 1; /* error flag */
388bb21a
TS		 2287 ret = -ret;
2288 } else {
b5dc7732 2289 env->active_tc.gpr[7] = 0; /* error flag */
048f6b4d 2290 }
b5dc7732 2291 env->active_tc.gpr[2] = ret;
048f6b4d 2292 break;
ca7c2b1b
TS		 2293 case EXCP_TLBL:
2294 case EXCP_TLBS:
e6e5bd2d
WT		 2295 case EXCP_AdEL:
2296 case EXCP_AdES:
e4474235
PB		 2297 info.si_signo = TARGET_SIGSEGV;
2298 info.si_errno = 0;
2299 /* XXX: check env->error_code */
2300 info.si_code = TARGET_SEGV_MAPERR;
2301 info._sifields._sigfault._addr = env->CP0_BadVAddr;
2302 queue_signal(env, info.si_signo, &info);
2303 break;
6900e84b 2304 case EXCP_CpU:
048f6b4d 2305 case EXCP_RI:
bc1ad2de
FB		 2306 info.si_signo = TARGET_SIGILL;
2307 info.si_errno = 0;
2308 info.si_code = 0;
624f7979 2309 queue_signal(env, info.si_signo, &info);
048f6b4d 2310 break;
106ec879
FB		 2311 case EXCP_INTERRUPT:
2312 /* just indicate that signals should be handled asap */
2313 break;
d08b2a28
PB		 2314 case EXCP_DEBUG:
2315 {
2316 int sig;
2317
2318 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2319 if (sig)
2320 {
2321 info.si_signo = sig;
2322 info.si_errno = 0;
2323 info.si_code = TARGET_TRAP_BRKPT;
624f7979 2324 queue_signal(env, info.si_signo, &info);
d08b2a28
PB		 2325 }
2326 }
2327 break;
590bc601
PB		 2328 case EXCP_SC:
2329 if (do_store_exclusive(env)) {
2330 info.si_signo = TARGET_SIGSEGV;
2331 info.si_errno = 0;
2332 info.si_code = TARGET_SEGV_MAPERR;
2333 info._sifields._sigfault._addr = env->active_tc.PC;
2334 queue_signal(env, info.si_signo, &info);
2335 }
2336 break;
853c3240
JL		 2337 case EXCP_DSPDIS:
2338 info.si_signo = TARGET_SIGILL;
2339 info.si_errno = 0;
2340 info.si_code = TARGET_ILL_ILLOPC;
2341 queue_signal(env, info.si_signo, &info);
2342 break;
54b2f42c
MI		 2343 /* The code below was inspired by the MIPS Linux kernel trap
2344 * handling code in arch/mips/kernel/traps.c.
2345 */
2346 case EXCP_BREAK:
2347 {
2348 abi_ulong trap_instr;
2349 unsigned int code;
2350
2351 ret = get_user_ual(trap_instr, env->active_tc.PC);
2352 if (ret != 0) {
2353 goto error;
2354 }
2355
2356 /* As described in the original Linux kernel code, the
2357 * below checks on 'code' are to work around an old
2358 * assembly bug.
2359 */
2360 code = ((trap_instr >> 6) & ((1 << 20) - 1));
2361 if (code >= (1 << 10)) {
2362 code >>= 10;
2363 }
2364
2365 if (do_break(env, &info, code) != 0) {
2366 goto error;
2367 }
2368 }
2369 break;
2370 case EXCP_TRAP:
2371 {
2372 abi_ulong trap_instr;
2373 unsigned int code = 0;
2374
2375 ret = get_user_ual(trap_instr, env->active_tc.PC);
2376 if (ret != 0) {
2377 goto error;
2378 }
2379
2380 /* The immediate versions don't provide a code. */
2381 if (!(trap_instr & 0xFC000000)) {
2382 code = ((trap_instr >> 6) & ((1 << 10) - 1));
2383 }
2384
2385 if (do_break(env, &info, code) != 0) {
2386 goto error;
2387 }
2388 }
2389 break;
048f6b4d 2390 default:
54b2f42c 2391error:
5fafdf24 2392 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
048f6b4d
FB		 2393 trapnr);
2394 cpu_dump_state(env, stderr, fprintf, 0);
2395 abort();
2396 }
2397 process_pending_signals(env);
2398 }
2399}
2400#endif
2401
d962783e
JL		 2402#ifdef TARGET_OPENRISC
2403
2404void cpu_loop(CPUOpenRISCState *env)
2405{
2406 int trapnr, gdbsig;
2407
2408 for (;;) {
2409 trapnr = cpu_exec(env);
2410 gdbsig = 0;
2411
2412 switch (trapnr) {
2413 case EXCP_RESET:
2414 qemu_log("\nReset request, exit, pc is %#x\n", env->pc);
2415 exit(1);
2416 break;
2417 case EXCP_BUSERR:
2418 qemu_log("\nBus error, exit, pc is %#x\n", env->pc);
2419 gdbsig = SIGBUS;
2420 break;
2421 case EXCP_DPF:
2422 case EXCP_IPF:
2423 cpu_dump_state(env, stderr, fprintf, 0);
2424 gdbsig = TARGET_SIGSEGV;
2425 break;
2426 case EXCP_TICK:
2427 qemu_log("\nTick time interrupt pc is %#x\n", env->pc);
2428 break;
2429 case EXCP_ALIGN:
2430 qemu_log("\nAlignment pc is %#x\n", env->pc);
2431 gdbsig = SIGBUS;
2432 break;
2433 case EXCP_ILLEGAL:
2434 qemu_log("\nIllegal instructionpc is %#x\n", env->pc);
2435 gdbsig = SIGILL;
2436 break;
2437 case EXCP_INT:
2438 qemu_log("\nExternal interruptpc is %#x\n", env->pc);
2439 break;
2440 case EXCP_DTLBMISS:
2441 case EXCP_ITLBMISS:
2442 qemu_log("\nTLB miss\n");
2443 break;
2444 case EXCP_RANGE:
2445 qemu_log("\nRange\n");
2446 gdbsig = SIGSEGV;
2447 break;
2448 case EXCP_SYSCALL:
2449 env->pc += 4; /* 0xc00; */
2450 env->gpr[11] = do_syscall(env,
2451 env->gpr[11], /* return value */
2452 env->gpr[3], /* r3 - r7 are params */
2453 env->gpr[4],
2454 env->gpr[5],
2455 env->gpr[6],
2456 env->gpr[7],
2457 env->gpr[8], 0, 0);
2458 break;
2459 case EXCP_FPE:
2460 qemu_log("\nFloating point error\n");
2461 break;
2462 case EXCP_TRAP:
2463 qemu_log("\nTrap\n");
2464 gdbsig = SIGTRAP;
2465 break;
2466 case EXCP_NR:
2467 qemu_log("\nNR\n");
2468 break;
2469 default:
2470 qemu_log("\nqemu: unhandled CPU exception %#x - aborting\n",
2471 trapnr);
2472 cpu_dump_state(env, stderr, fprintf, 0);
2473 gdbsig = TARGET_SIGILL;
2474 break;
2475 }
2476 if (gdbsig) {
2477 gdb_handlesig(env, gdbsig);
2478 if (gdbsig != TARGET_SIGTRAP) {
2479 exit(1);
2480 }
2481 }
2482
2483 process_pending_signals(env);
2484 }
2485}
2486
2487#endif /* TARGET_OPENRISC */
2488
fdf9b3e8 2489#ifdef TARGET_SH4
05390248 2490void cpu_loop(CPUSH4State *env)
fdf9b3e8
FB		 2491{
2492 int trapnr, ret;
c227f099 2493 target_siginfo_t info;
3b46e624 2494
fdf9b3e8
FB		 2495 while (1) {
2496 trapnr = cpu_sh4_exec (env);
3b46e624 2497
fdf9b3e8
FB		 2498 switch (trapnr) {
2499 case 0x160:
0b6d3ae0 2500 env->pc += 2;
5fafdf24
TS		 2501 ret = do_syscall(env,
2502 env->gregs[3],
2503 env->gregs[4],
2504 env->gregs[5],
2505 env->gregs[6],
2506 env->gregs[7],
2507 env->gregs[0],
5945cfcb
PM		 2508 env->gregs[1],
2509 0, 0);
9c2a9ea1 2510 env->gregs[0] = ret;
fdf9b3e8 2511 break;
c3b5bc8a
TS		 2512 case EXCP_INTERRUPT:
2513 /* just indicate that signals should be handled asap */
2514 break;
355fb23d
PB		 2515 case EXCP_DEBUG:
2516 {
2517 int sig;
2518
2519 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2520 if (sig)
2521 {
2522 info.si_signo = sig;
2523 info.si_errno = 0;
2524 info.si_code = TARGET_TRAP_BRKPT;
624f7979 2525 queue_signal(env, info.si_signo, &info);
355fb23d
PB		 2526 }
2527 }
2528 break;
c3b5bc8a
TS		 2529 case 0xa0:
2530 case 0xc0:
2531 info.si_signo = SIGSEGV;
2532 info.si_errno = 0;
2533 info.si_code = TARGET_SEGV_MAPERR;
2534 info._sifields._sigfault._addr = env->tea;
624f7979 2535 queue_signal(env, info.si_signo, &info);
c3b5bc8a
TS		 2536 break;
2537
fdf9b3e8
FB		 2538 default:
2539 printf ("Unhandled trap: 0x%x\n", trapnr);
2540 cpu_dump_state(env, stderr, fprintf, 0);
2541 exit (1);
2542 }
2543 process_pending_signals (env);
2544 }
2545}
2546#endif
2547
48733d19 2548#ifdef TARGET_CRIS
05390248 2549void cpu_loop(CPUCRISState *env)
48733d19
TS		 2550{
2551 int trapnr, ret;
c227f099 2552 target_siginfo_t info;
48733d19
TS		 2553
2554 while (1) {
2555 trapnr = cpu_cris_exec (env);
2556 switch (trapnr) {
2557 case 0xaa:
2558 {
2559 info.si_signo = SIGSEGV;
2560 info.si_errno = 0;
2561 /* XXX: check env->error_code */
2562 info.si_code = TARGET_SEGV_MAPERR;
e00c1e71 2563 info._sifields._sigfault._addr = env->pregs[PR_EDA];
624f7979 2564 queue_signal(env, info.si_signo, &info);
48733d19
TS		 2565 }
2566 break;
b6d3abda
EI		 2567 case EXCP_INTERRUPT:
2568 /* just indicate that signals should be handled asap */
2569 break;
48733d19
TS		 2570 case EXCP_BREAK:
2571 ret = do_syscall(env,
2572 env->regs[9],
2573 env->regs[10],
2574 env->regs[11],
2575 env->regs[12],
2576 env->regs[13],
2577 env->pregs[7],
5945cfcb
PM		 2578 env->pregs[11],
2579 0, 0);
48733d19 2580 env->regs[10] = ret;
48733d19
TS		 2581 break;
2582 case EXCP_DEBUG:
2583 {
2584 int sig;
2585
2586 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2587 if (sig)
2588 {
2589 info.si_signo = sig;
2590 info.si_errno = 0;
2591 info.si_code = TARGET_TRAP_BRKPT;
624f7979 2592 queue_signal(env, info.si_signo, &info);
48733d19
TS		 2593 }
2594 }
2595 break;
2596 default:
2597 printf ("Unhandled trap: 0x%x\n", trapnr);
2598 cpu_dump_state(env, stderr, fprintf, 0);
2599 exit (1);
2600 }
2601 process_pending_signals (env);
2602 }
2603}
2604#endif
2605
b779e29e 2606#ifdef TARGET_MICROBLAZE
05390248 2607void cpu_loop(CPUMBState *env)
b779e29e
EI		 2608{
2609 int trapnr, ret;
c227f099 2610 target_siginfo_t info;
b779e29e
EI		 2611
2612 while (1) {
2613 trapnr = cpu_mb_exec (env);
2614 switch (trapnr) {
2615 case 0xaa:
2616 {
2617 info.si_signo = SIGSEGV;
2618 info.si_errno = 0;
2619 /* XXX: check env->error_code */
2620 info.si_code = TARGET_SEGV_MAPERR;
2621 info._sifields._sigfault._addr = 0;
2622 queue_signal(env, info.si_signo, &info);
2623 }
2624 break;
2625 case EXCP_INTERRUPT:
2626 /* just indicate that signals should be handled asap */
2627 break;
2628 case EXCP_BREAK:
2629 /* Return address is 4 bytes after the call. */
2630 env->regs[14] += 4;
d7dce494 2631 env->sregs[SR_PC] = env->regs[14];
b779e29e
EI		 2632 ret = do_syscall(env,
2633 env->regs[12],
2634 env->regs[5],
2635 env->regs[6],
2636 env->regs[7],
2637 env->regs[8],
2638 env->regs[9],
5945cfcb
PM		 2639 env->regs[10],
2640 0, 0);
b779e29e 2641 env->regs[3] = ret;
b779e29e 2642 break;
b76da7e3
EI		 2643 case EXCP_HW_EXCP:
2644 env->regs[17] = env->sregs[SR_PC] + 4;
2645 if (env->iflags & D_FLAG) {
2646 env->sregs[SR_ESR] |= 1 << 12;
2647 env->sregs[SR_PC] -= 4;
b4916d7b 2648 /* FIXME: if branch was immed, replay the imm as well. */
b76da7e3
EI		 2649 }
2650
2651 env->iflags &= ~(IMM_FLAG | D_FLAG);
2652
2653 switch (env->sregs[SR_ESR] & 31) {
22a78d64
EI		 2654 case ESR_EC_DIVZERO:
2655 info.si_signo = SIGFPE;
2656 info.si_errno = 0;
2657 info.si_code = TARGET_FPE_FLTDIV;
2658 info._sifields._sigfault._addr = 0;
2659 queue_signal(env, info.si_signo, &info);
2660 break;
b76da7e3
EI		 2661 case ESR_EC_FPU:
2662 info.si_signo = SIGFPE;
2663 info.si_errno = 0;
2664 if (env->sregs[SR_FSR] & FSR_IO) {
2665 info.si_code = TARGET_FPE_FLTINV;
2666 }
2667 if (env->sregs[SR_FSR] & FSR_DZ) {
2668 info.si_code = TARGET_FPE_FLTDIV;
2669 }
2670 info._sifields._sigfault._addr = 0;
2671 queue_signal(env, info.si_signo, &info);
2672 break;
2673 default:
2674 printf ("Unhandled hw-exception: 0x%x\n",
2e42d52d 2675 env->sregs[SR_ESR] & ESR_EC_MASK);
b76da7e3
EI		 2676 cpu_dump_state(env, stderr, fprintf, 0);
2677 exit (1);
2678 break;
2679 }
2680 break;
b779e29e
EI		 2681 case EXCP_DEBUG:
2682 {
2683 int sig;
2684
2685 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2686 if (sig)
2687 {
2688 info.si_signo = sig;
2689 info.si_errno = 0;
2690 info.si_code = TARGET_TRAP_BRKPT;
2691 queue_signal(env, info.si_signo, &info);
2692 }
2693 }
2694 break;
2695 default:
2696 printf ("Unhandled trap: 0x%x\n", trapnr);
2697 cpu_dump_state(env, stderr, fprintf, 0);
2698 exit (1);
2699 }
2700 process_pending_signals (env);
2701 }
2702}
2703#endif
2704
e6e5906b
PB		 2705#ifdef TARGET_M68K
2706
2707void cpu_loop(CPUM68KState *env)
2708{
2709 int trapnr;
2710 unsigned int n;
c227f099 2711 target_siginfo_t info;
e6e5906b 2712 TaskState *ts = env->opaque;
3b46e624 2713
e6e5906b
PB		 2714 for(;;) {
2715 trapnr = cpu_m68k_exec(env);
2716 switch(trapnr) {
2717 case EXCP_ILLEGAL:
2718 {
2719 if (ts->sim_syscalls) {
2720 uint16_t nr;
2721 nr = lduw(env->pc + 2);
2722 env->pc += 4;
2723 do_m68k_simcall(env, nr);
2724 } else {
2725 goto do_sigill;
2726 }
2727 }
2728 break;
a87295e8 2729 case EXCP_HALT_INSN:
e6e5906b 2730 /* Semihosing syscall. */
a87295e8 2731 env->pc += 4;
e6e5906b
PB		 2732 do_m68k_semihosting(env, env->dregs[0]);
2733 break;
2734 case EXCP_LINEA:
2735 case EXCP_LINEF:
2736 case EXCP_UNSUPPORTED:
2737 do_sigill:
2738 info.si_signo = SIGILL;
2739 info.si_errno = 0;
2740 info.si_code = TARGET_ILL_ILLOPN;
2741 info._sifields._sigfault._addr = env->pc;
624f7979 2742 queue_signal(env, info.si_signo, &info);
e6e5906b
PB		 2743 break;
2744 case EXCP_TRAP0:
2745 {
2746 ts->sim_syscalls = 0;
2747 n = env->dregs[0];
2748 env->pc += 2;
5fafdf24
TS		 2749 env->dregs[0] = do_syscall(env,
2750 n,
e6e5906b
PB		 2751 env->dregs[1],
2752 env->dregs[2],
2753 env->dregs[3],
2754 env->dregs[4],
2755 env->dregs[5],
5945cfcb
PM		 2756 env->aregs[0],
2757 0, 0);
e6e5906b
PB		 2758 }
2759 break;
2760 case EXCP_INTERRUPT:
2761 /* just indicate that signals should be handled asap */
2762 break;
2763 case EXCP_ACCESS:
2764 {
2765 info.si_signo = SIGSEGV;
2766 info.si_errno = 0;
2767 /* XXX: check env->error_code */
2768 info.si_code = TARGET_SEGV_MAPERR;
2769 info._sifields._sigfault._addr = env->mmu.ar;
624f7979 2770 queue_signal(env, info.si_signo, &info);
e6e5906b
PB		 2771 }
2772 break;
2773 case EXCP_DEBUG:
2774 {
2775 int sig;
2776
2777 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2778 if (sig)
2779 {
2780 info.si_signo = sig;
2781 info.si_errno = 0;
2782 info.si_code = TARGET_TRAP_BRKPT;
624f7979 2783 queue_signal(env, info.si_signo, &info);
e6e5906b
PB		 2784 }
2785 }
2786 break;
2787 default:
5fafdf24 2788 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
e6e5906b
PB		 2789 trapnr);
2790 cpu_dump_state(env, stderr, fprintf, 0);
2791 abort();
2792 }
2793 process_pending_signals(env);
2794 }
2795}
2796#endif /* TARGET_M68K */
2797
7a3148a9 2798#ifdef TARGET_ALPHA
6910b8f6
RH		 2799static void do_store_exclusive(CPUAlphaState *env, int reg, int quad)
2800{
2801 target_ulong addr, val, tmp;
2802 target_siginfo_t info;
2803 int ret = 0;
2804
2805 addr = env->lock_addr;
2806 tmp = env->lock_st_addr;
2807 env->lock_addr = -1;
2808 env->lock_st_addr = 0;
2809
2810 start_exclusive();
2811 mmap_lock();
2812
2813 if (addr == tmp) {
2814 if (quad ? get_user_s64(val, addr) : get_user_s32(val, addr)) {
2815 goto do_sigsegv;
2816 }
2817
2818 if (val == env->lock_value) {
2819 tmp = env->ir[reg];
2820 if (quad ? put_user_u64(tmp, addr) : put_user_u32(tmp, addr)) {
2821 goto do_sigsegv;
2822 }
2823 ret = 1;
2824 }
2825 }
2826 env->ir[reg] = ret;
2827 env->pc += 4;
2828
2829 mmap_unlock();
2830 end_exclusive();
2831 return;
2832
2833 do_sigsegv:
2834 mmap_unlock();
2835 end_exclusive();
2836
2837 info.si_signo = TARGET_SIGSEGV;
2838 info.si_errno = 0;
2839 info.si_code = TARGET_SEGV_MAPERR;
2840 info._sifields._sigfault._addr = addr;
2841 queue_signal(env, TARGET_SIGSEGV, &info);
2842}
2843
05390248 2844void cpu_loop(CPUAlphaState *env)
7a3148a9 2845{
e96efcfc 2846 int trapnr;
c227f099 2847 target_siginfo_t info;
6049f4f8 2848 abi_long sysret;
3b46e624 2849
7a3148a9
JM		 2850 while (1) {
2851 trapnr = cpu_alpha_exec (env);
3b46e624 2852
ac316ca4
RH		 2853 /* All of the traps imply a transition through PALcode, which
2854 implies an REI instruction has been executed. Which means
2855 that the intr_flag should be cleared. */
2856 env->intr_flag = 0;
2857
7a3148a9
JM		 2858 switch (trapnr) {
2859 case EXCP_RESET:
2860 fprintf(stderr, "Reset requested. Exit\n");
2861 exit(1);
2862 break;
2863 case EXCP_MCHK:
2864 fprintf(stderr, "Machine check exception. Exit\n");
2865 exit(1);
2866 break;
07b6c13b
RH		 2867 case EXCP_SMP_INTERRUPT:
2868 case EXCP_CLK_INTERRUPT:
2869 case EXCP_DEV_INTERRUPT:
5fafdf24 2870 fprintf(stderr, "External interrupt. Exit\n");
7a3148a9
JM		 2871 exit(1);
2872 break;
07b6c13b 2873 case EXCP_MMFAULT:
6910b8f6 2874 env->lock_addr = -1;
6049f4f8
RH		 2875 info.si_signo = TARGET_SIGSEGV;
2876 info.si_errno = 0;
129d8aa5 2877 info.si_code = (page_get_flags(env->trap_arg0) & PAGE_VALID
0be1d07c 2878 ? TARGET_SEGV_ACCERR : TARGET_SEGV_MAPERR);
129d8aa5 2879 info._sifields._sigfault._addr = env->trap_arg0;
6049f4f8 2880 queue_signal(env, info.si_signo, &info);
7a3148a9 2881 break;
7a3148a9 2882 case EXCP_UNALIGN:
6910b8f6 2883 env->lock_addr = -1;
6049f4f8
RH		 2884 info.si_signo = TARGET_SIGBUS;
2885 info.si_errno = 0;
2886 info.si_code = TARGET_BUS_ADRALN;
129d8aa5 2887 info._sifields._sigfault._addr = env->trap_arg0;
6049f4f8 2888 queue_signal(env, info.si_signo, &info);
7a3148a9
JM		 2889 break;
2890 case EXCP_OPCDEC:
6049f4f8 2891 do_sigill:
6910b8f6 2892 env->lock_addr = -1;
6049f4f8
RH		 2893 info.si_signo = TARGET_SIGILL;
2894 info.si_errno = 0;
2895 info.si_code = TARGET_ILL_ILLOPC;
2896 info._sifields._sigfault._addr = env->pc;
2897 queue_signal(env, info.si_signo, &info);
7a3148a9 2898 break;
07b6c13b
RH		 2899 case EXCP_ARITH:
2900 env->lock_addr = -1;
2901 info.si_signo = TARGET_SIGFPE;
2902 info.si_errno = 0;
2903 info.si_code = TARGET_FPE_FLTINV;
2904 info._sifields._sigfault._addr = env->pc;
2905 queue_signal(env, info.si_signo, &info);
2906 break;
7a3148a9 2907 case EXCP_FEN:
6049f4f8 2908 /* No-op. Linux simply re-enables the FPU. */
7a3148a9 2909 break;
07b6c13b 2910 case EXCP_CALL_PAL:
6910b8f6 2911 env->lock_addr = -1;
07b6c13b 2912 switch (env->error_code) {
6049f4f8
RH		 2913 case 0x80:
2914 /* BPT */
2915 info.si_signo = TARGET_SIGTRAP;
2916 info.si_errno = 0;
2917 info.si_code = TARGET_TRAP_BRKPT;
2918 info._sifields._sigfault._addr = env->pc;
2919 queue_signal(env, info.si_signo, &info);
2920 break;
2921 case 0x81:
2922 /* BUGCHK */
2923 info.si_signo = TARGET_SIGTRAP;
2924 info.si_errno = 0;
2925 info.si_code = 0;
2926 info._sifields._sigfault._addr = env->pc;
2927 queue_signal(env, info.si_signo, &info);
2928 break;
2929 case 0x83:
2930 /* CALLSYS */
2931 trapnr = env->ir[IR_V0];
2932 sysret = do_syscall(env, trapnr,
2933 env->ir[IR_A0], env->ir[IR_A1],
2934 env->ir[IR_A2], env->ir[IR_A3],
5945cfcb
PM		 2935 env->ir[IR_A4], env->ir[IR_A5],
2936 0, 0);
a5b3b13b
RH		 2937 if (trapnr == TARGET_NR_sigreturn
2938 || trapnr == TARGET_NR_rt_sigreturn) {
2939 break;
2940 }
2941 /* Syscall writes 0 to V0 to bypass error check, similar
0e141977
RH		 2942 to how this is handled internal to Linux kernel.
2943 (Ab)use trapnr temporarily as boolean indicating error. */
2944 trapnr = (env->ir[IR_V0] != 0 && sysret < 0);
2945 env->ir[IR_V0] = (trapnr ? -sysret : sysret);
2946 env->ir[IR_A3] = trapnr;
6049f4f8
RH		 2947 break;
2948 case 0x86:
2949 /* IMB */
2950 /* ??? We can probably elide the code using page_unprotect
2951 that is checking for self-modifying code. Instead we
2952 could simply call tb_flush here. Until we work out the
2953 changes required to turn off the extra write protection,
2954 this can be a no-op. */
2955 break;
2956 case 0x9E:
2957 /* RDUNIQUE */
2958 /* Handled in the translator for usermode. */
2959 abort();
2960 case 0x9F:
2961 /* WRUNIQUE */
2962 /* Handled in the translator for usermode. */
2963 abort();
2964 case 0xAA:
2965 /* GENTRAP */
2966 info.si_signo = TARGET_SIGFPE;
2967 switch (env->ir[IR_A0]) {
2968 case TARGET_GEN_INTOVF:
2969 info.si_code = TARGET_FPE_INTOVF;
2970 break;
2971 case TARGET_GEN_INTDIV:
2972 info.si_code = TARGET_FPE_INTDIV;
2973 break;
2974 case TARGET_GEN_FLTOVF:
2975 info.si_code = TARGET_FPE_FLTOVF;
2976 break;
2977 case TARGET_GEN_FLTUND:
2978 info.si_code = TARGET_FPE_FLTUND;
2979 break;
2980 case TARGET_GEN_FLTINV:
2981 info.si_code = TARGET_FPE_FLTINV;
2982 break;
2983 case TARGET_GEN_FLTINE:
2984 info.si_code = TARGET_FPE_FLTRES;
2985 break;
2986 case TARGET_GEN_ROPRAND:
2987 info.si_code = 0;
2988 break;
2989 default:
2990 info.si_signo = TARGET_SIGTRAP;
2991 info.si_code = 0;
2992 break;
2993 }
2994 info.si_errno = 0;
2995 info._sifields._sigfault._addr = env->pc;
2996 queue_signal(env, info.si_signo, &info);
2997 break;
2998 default:
2999 goto do_sigill;
3000 }
7a3148a9 3001 break;
7a3148a9 3002 case EXCP_DEBUG:
6049f4f8
RH		 3003 info.si_signo = gdb_handlesig (env, TARGET_SIGTRAP);
3004 if (info.si_signo) {
6910b8f6 3005 env->lock_addr = -1;
6049f4f8
RH		 3006 info.si_errno = 0;
3007 info.si_code = TARGET_TRAP_BRKPT;
3008 queue_signal(env, info.si_signo, &info);
7a3148a9
JM		 3009 }
3010 break;
6910b8f6
RH		 3011 case EXCP_STL_C:
3012 case EXCP_STQ_C:
3013 do_store_exclusive(env, env->error_code, trapnr - EXCP_STL_C);
3014 break;
d0f20495
RH		 3015 case EXCP_INTERRUPT:
3016 /* Just indicate that signals should be handled asap. */
3017 break;
7a3148a9
JM		 3018 default:
3019 printf ("Unhandled trap: 0x%x\n", trapnr);
3020 cpu_dump_state(env, stderr, fprintf, 0);
3021 exit (1);
3022 }
3023 process_pending_signals (env);
3024 }
3025}
3026#endif /* TARGET_ALPHA */
3027
a4c075f1
UH		 3028#ifdef TARGET_S390X
3029void cpu_loop(CPUS390XState *env)
3030{
d5a103cd 3031 int trapnr, n, sig;
a4c075f1 3032 target_siginfo_t info;
d5a103cd 3033 target_ulong addr;
a4c075f1
UH		 3034
3035 while (1) {
d5a103cd 3036 trapnr = cpu_s390x_exec(env);
a4c075f1
UH		 3037 switch (trapnr) {
3038 case EXCP_INTERRUPT:
d5a103cd 3039 /* Just indicate that signals should be handled asap. */
a4c075f1 3040 break;
a4c075f1 3041
d5a103cd
RH		 3042 case EXCP_SVC:
3043 n = env->int_svc_code;
3044 if (!n) {
3045 /* syscalls > 255 */
3046 n = env->regs[1];
a4c075f1 3047 }
d5a103cd
RH		 3048 env->psw.addr += env->int_svc_ilen;
3049 env->regs[2] = do_syscall(env, n, env->regs[2], env->regs[3],
3050 env->regs[4], env->regs[5],
3051 env->regs[6], env->regs[7], 0, 0);
a4c075f1 3052 break;
d5a103cd
RH		 3053
3054 case EXCP_DEBUG:
3055 sig = gdb_handlesig(env, TARGET_SIGTRAP);
3056 if (sig) {
3057 n = TARGET_TRAP_BRKPT;
3058 goto do_signal_pc;
a4c075f1
UH		 3059 }
3060 break;
d5a103cd
RH		 3061 case EXCP_PGM:
3062 n = env->int_pgm_code;
3063 switch (n) {
3064 case PGM_OPERATION:
3065 case PGM_PRIVILEGED:
3066 sig = SIGILL;
3067 n = TARGET_ILL_ILLOPC;
3068 goto do_signal_pc;
3069 case PGM_PROTECTION:
3070 case PGM_ADDRESSING:
3071 sig = SIGSEGV;
a4c075f1 3072 /* XXX: check env->error_code */
d5a103cd
RH		 3073 n = TARGET_SEGV_MAPERR;
3074 addr = env->__excp_addr;
3075 goto do_signal;
3076 case PGM_EXECUTE:
3077 case PGM_SPECIFICATION:
3078 case PGM_SPECIAL_OP:
3079 case PGM_OPERAND:
3080 do_sigill_opn:
3081 sig = SIGILL;
3082 n = TARGET_ILL_ILLOPN;
3083 goto do_signal_pc;
3084
3085 case PGM_FIXPT_OVERFLOW:
3086 sig = SIGFPE;
3087 n = TARGET_FPE_INTOVF;
3088 goto do_signal_pc;
3089 case PGM_FIXPT_DIVIDE:
3090 sig = SIGFPE;
3091 n = TARGET_FPE_INTDIV;
3092 goto do_signal_pc;
3093
3094 case PGM_DATA:
3095 n = (env->fpc >> 8) & 0xff;
3096 if (n == 0xff) {
3097 /* compare-and-trap */
3098 goto do_sigill_opn;
3099 } else {
3100 /* An IEEE exception, simulated or otherwise. */
3101 if (n & 0x80) {
3102 n = TARGET_FPE_FLTINV;
3103 } else if (n & 0x40) {
3104 n = TARGET_FPE_FLTDIV;
3105 } else if (n & 0x20) {
3106 n = TARGET_FPE_FLTOVF;
3107 } else if (n & 0x10) {
3108 n = TARGET_FPE_FLTUND;
3109 } else if (n & 0x08) {
3110 n = TARGET_FPE_FLTRES;
3111 } else {
3112 /* ??? Quantum exception; BFP, DFP error. */
3113 goto do_sigill_opn;
3114 }
3115 sig = SIGFPE;
3116 goto do_signal_pc;
3117 }
3118
3119 default:
3120 fprintf(stderr, "Unhandled program exception: %#x\n", n);
3121 cpu_dump_state(env, stderr, fprintf, 0);
3122 exit(1);
a4c075f1
UH		 3123 }
3124 break;
d5a103cd
RH		 3125
3126 do_signal_pc:
3127 addr = env->psw.addr;
3128 do_signal:
3129 info.si_signo = sig;
3130 info.si_errno = 0;
3131 info.si_code = n;
3132 info._sifields._sigfault._addr = addr;
3133 queue_signal(env, info.si_signo, &info);
a4c075f1 3134 break;
d5a103cd 3135
a4c075f1 3136 default:
d5a103cd 3137 fprintf(stderr, "Unhandled trap: 0x%x\n", trapnr);
a4c075f1 3138 cpu_dump_state(env, stderr, fprintf, 0);
d5a103cd 3139 exit(1);
a4c075f1
UH		 3140 }
3141 process_pending_signals (env);
3142 }
3143}
3144
3145#endif /* TARGET_S390X */
3146
9349b4f9 3147THREAD CPUArchState *thread_env;
59faf6d6 3148
edf8e2af
MW		 3149void task_settid(TaskState *ts)
3150{
3151 if (ts->ts_tid == 0) {
2f7bb878 3152#ifdef CONFIG_USE_NPTL
edf8e2af
MW		 3153 ts->ts_tid = (pid_t)syscall(SYS_gettid);
3154#else
3155 /* when no threads are used, tid becomes pid */
3156 ts->ts_tid = getpid();
3157#endif
3158 }
3159}
3160
3161void stop_all_tasks(void)
3162{
3163 /*
3164 * We trust that when using NPTL, start_exclusive()
3165 * handles thread stopping correctly.
3166 */
3167 start_exclusive();
3168}
3169
c3a92833 3170/* Assumes contents are already zeroed. */
624f7979
PB		 3171void init_task_state(TaskState *ts)
3172{
3173 int i;
3174
624f7979
PB		 3175 ts->used = 1;
3176 ts->first_free = ts->sigqueue_table;
3177 for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) {
3178 ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1];
3179 }
3180 ts->sigqueue_table[i].next = NULL;
3181}
fc9c5412
JS		 3182
3183static void handle_arg_help(const char *arg)
3184{
3185 usage();
3186}
3187
3188static void handle_arg_log(const char *arg)
3189{
3190 int mask;
fc9c5412 3191
4fde1eba 3192 mask = qemu_str_to_log_mask(arg);
fc9c5412 3193 if (!mask) {
59a6fa6e 3194 qemu_print_log_usage(stdout);
fc9c5412
JS		 3195 exit(1);
3196 }
24537a01 3197 qemu_set_log(mask);
fc9c5412
JS		 3198}
3199
50171d42 3200static void handle_arg_log_filename(const char *arg)
3201{
9a7e5424 3202 qemu_set_log_filename(arg);
50171d42 3203}
3204
fc9c5412
JS		 3205static void handle_arg_set_env(const char *arg)
3206{
3207 char *r, *p, *token;
3208 r = p = strdup(arg);
3209 while ((token = strsep(&p, ",")) != NULL) {
3210 if (envlist_setenv(envlist, token) != 0) {
3211 usage();
3212 }
3213 }
3214 free(r);
3215}
3216
3217static void handle_arg_unset_env(const char *arg)
3218{
3219 char *r, *p, *token;
3220 r = p = strdup(arg);
3221 while ((token = strsep(&p, ",")) != NULL) {
3222 if (envlist_unsetenv(envlist, token) != 0) {
3223 usage();
3224 }
3225 }
3226 free(r);
3227}
3228
3229static void handle_arg_argv0(const char *arg)
3230{
3231 argv0 = strdup(arg);
3232}
3233
3234static void handle_arg_stack_size(const char *arg)
3235{
3236 char *p;
3237 guest_stack_size = strtoul(arg, &p, 0);
3238 if (guest_stack_size == 0) {
3239 usage();
3240 }
3241
3242 if (*p == 'M') {
3243 guest_stack_size *= 1024 * 1024;
3244 } else if (*p == 'k' || *p == 'K') {
3245 guest_stack_size *= 1024;
3246 }
3247}
3248
3249static void handle_arg_ld_prefix(const char *arg)
3250{
3251 interp_prefix = strdup(arg);
3252}
3253
3254static void handle_arg_pagesize(const char *arg)
3255{
3256 qemu_host_page_size = atoi(arg);
3257 if (qemu_host_page_size == 0 ||
3258 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
3259 fprintf(stderr, "page size must be a power of two\n");
3260 exit(1);
3261 }
3262}
3263
3264static void handle_arg_gdb(const char *arg)
3265{
3266 gdbstub_port = atoi(arg);
3267}
3268
3269static void handle_arg_uname(const char *arg)
3270{
3271 qemu_uname_release = strdup(arg);
3272}
3273
3274static void handle_arg_cpu(const char *arg)
3275{
3276 cpu_model = strdup(arg);
c8057f95 3277 if (cpu_model == NULL || is_help_option(cpu_model)) {
fc9c5412 3278 /* XXX: implement xxx_cpu_list for targets that still miss it */
e916cbf8
PM		 3279#if defined(cpu_list)
3280 cpu_list(stdout, &fprintf);
fc9c5412
JS		 3281#endif
3282 exit(1);
3283 }
3284}
3285
3286#if defined(CONFIG_USE_GUEST_BASE)
3287static void handle_arg_guest_base(const char *arg)
3288{
3289 guest_base = strtol(arg, NULL, 0);
3290 have_guest_base = 1;
3291}
3292
3293static void handle_arg_reserved_va(const char *arg)
3294{
3295 char *p;
3296 int shift = 0;
3297 reserved_va = strtoul(arg, &p, 0);
3298 switch (*p) {
3299 case 'k':
3300 case 'K':
3301 shift = 10;
3302 break;
3303 case 'M':
3304 shift = 20;
3305 break;
3306 case 'G':
3307 shift = 30;
3308 break;
3309 }
3310 if (shift) {
3311 unsigned long unshifted = reserved_va;
3312 p++;
3313 reserved_va <<= shift;
3314 if (((reserved_va >> shift) != unshifted)
3315#if HOST_LONG_BITS > TARGET_VIRT_ADDR_SPACE_BITS
3316 || (reserved_va > (1ul << TARGET_VIRT_ADDR_SPACE_BITS))
3317#endif
3318 ) {
3319 fprintf(stderr, "Reserved virtual address too big\n");
3320 exit(1);
3321 }
3322 }
3323 if (*p) {
3324 fprintf(stderr, "Unrecognised -R size suffix '%s'\n", p);
3325 exit(1);
3326 }
3327}
3328#endif
3329
3330static void handle_arg_singlestep(const char *arg)
3331{
3332 singlestep = 1;
3333}
3334
3335static void handle_arg_strace(const char *arg)
3336{
3337 do_strace = 1;
3338}
3339
3340static void handle_arg_version(const char *arg)
3341{
2e59915d 3342 printf("qemu-" TARGET_NAME " version " QEMU_VERSION QEMU_PKGVERSION
fc9c5412 3343 ", Copyright (c) 2003-2008 Fabrice Bellard\n");
1386d4c0 3344 exit(0);
fc9c5412
JS		 3345}
3346
3347struct qemu_argument {
3348 const char *argv;
3349 const char *env;
3350 bool has_arg;
3351 void (*handle_opt)(const char *arg);
3352 const char *example;
3353 const char *help;
3354};
3355
42644cee 3356static const struct qemu_argument arg_table[] = {
fc9c5412
JS		 3357 {"h", "", false, handle_arg_help,
3358 "", "print this help"},
3359 {"g", "QEMU_GDB", true, handle_arg_gdb,
3360 "port", "wait gdb connection to 'port'"},
3361 {"L", "QEMU_LD_PREFIX", true, handle_arg_ld_prefix,
3362 "path", "set the elf interpreter prefix to 'path'"},
3363 {"s", "QEMU_STACK_SIZE", true, handle_arg_stack_size,
3364 "size", "set the stack size to 'size' bytes"},
3365 {"cpu", "QEMU_CPU", true, handle_arg_cpu,
c8057f95 3366 "model", "select CPU (-cpu help for list)"},
fc9c5412
JS		 3367 {"E", "QEMU_SET_ENV", true, handle_arg_set_env,
3368 "var=value", "sets targets environment variable (see below)"},
3369 {"U", "QEMU_UNSET_ENV", true, handle_arg_unset_env,
3370 "var", "unsets targets environment variable (see below)"},
3371 {"0", "QEMU_ARGV0", true, handle_arg_argv0,
3372 "argv0", "forces target process argv[0] to be 'argv0'"},
3373 {"r", "QEMU_UNAME", true, handle_arg_uname,
3374 "uname", "set qemu uname release string to 'uname'"},
3375#if defined(CONFIG_USE_GUEST_BASE)
3376 {"B", "QEMU_GUEST_BASE", true, handle_arg_guest_base,
3377 "address", "set guest_base address to 'address'"},
3378 {"R", "QEMU_RESERVED_VA", true, handle_arg_reserved_va,
3379 "size", "reserve 'size' bytes for guest virtual address space"},
3380#endif
3381 {"d", "QEMU_LOG", true, handle_arg_log,
989b697d
PM		 3382 "item[,...]", "enable logging of specified items "
3383 "(use '-d help' for a list of items)"},
50171d42 3384 {"D", "QEMU_LOG_FILENAME", true, handle_arg_log_filename,
989b697d 3385 "logfile", "write logs to 'logfile' (default stderr)"},
fc9c5412
JS		 3386 {"p", "QEMU_PAGESIZE", true, handle_arg_pagesize,
3387 "pagesize", "set the host page size to 'pagesize'"},
3388 {"singlestep", "QEMU_SINGLESTEP", false, handle_arg_singlestep,
3389 "", "run in singlestep mode"},
3390 {"strace", "QEMU_STRACE", false, handle_arg_strace,
3391 "", "log system calls"},
3392 {"version", "QEMU_VERSION", false, handle_arg_version,
1386d4c0 3393 "", "display version information and exit"},
fc9c5412
JS		 3394 {NULL, NULL, false, NULL, NULL, NULL}
3395};
3396
3397static void usage(void)
3398{
42644cee 3399 const struct qemu_argument *arginfo;
fc9c5412
JS		 3400 int maxarglen;
3401 int maxenvlen;
3402
2e59915d
PB		 3403 printf("usage: qemu-" TARGET_NAME " [options] program [arguments...]\n"
3404 "Linux CPU emulator (compiled for " TARGET_NAME " emulation)\n"
fc9c5412
JS		 3405 "\n"
3406 "Options and associated environment variables:\n"
3407 "\n");
3408
63ec54d7
PM		 3409 /* Calculate column widths. We must always have at least enough space
3410 * for the column header.
3411 */
3412 maxarglen = strlen("Argument");
3413 maxenvlen = strlen("Env-variable");
fc9c5412
JS		 3414
3415 for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
63ec54d7
PM		 3416 int arglen = strlen(arginfo->argv);
3417 if (arginfo->has_arg) {
3418 arglen += strlen(arginfo->example) + 1;
3419 }
fc9c5412
JS		 3420 if (strlen(arginfo->env) > maxenvlen) {
3421 maxenvlen = strlen(arginfo->env);
3422 }
63ec54d7
PM		 3423 if (arglen > maxarglen) {
3424 maxarglen = arglen;
fc9c5412
JS		 3425 }
3426 }
3427
63ec54d7
PM		 3428 printf("%-*s %-*s Description\n", maxarglen+1, "Argument",
3429 maxenvlen, "Env-variable");
fc9c5412
JS		 3430
3431 for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
3432 if (arginfo->has_arg) {
3433 printf("-%s %-*s %-*s %s\n", arginfo->argv,
63ec54d7
PM		 3434 (int)(maxarglen - strlen(arginfo->argv) - 1),
3435 arginfo->example, maxenvlen, arginfo->env, arginfo->help);
fc9c5412 3436 } else {
63ec54d7 3437 printf("-%-*s %-*s %s\n", maxarglen, arginfo->argv,
fc9c5412
JS		 3438 maxenvlen, arginfo->env,
3439 arginfo->help);
3440 }
3441 }
3442
3443 printf("\n"
3444 "Defaults:\n"
3445 "QEMU_LD_PREFIX = %s\n"
989b697d 3446 "QEMU_STACK_SIZE = %ld byte\n",
fc9c5412 3447 interp_prefix,
989b697d 3448 guest_stack_size);
fc9c5412
JS		 3449
3450 printf("\n"
3451 "You can use -E and -U options or the QEMU_SET_ENV and\n"
3452 "QEMU_UNSET_ENV environment variables to set and unset\n"
3453 "environment variables for the target process.\n"
3454 "It is possible to provide several variables by separating them\n"
3455 "by commas in getsubopt(3) style. Additionally it is possible to\n"
3456 "provide the -E and -U options multiple times.\n"
3457 "The following lines are equivalent:\n"
3458 " -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n"
3459 " -E var1=val2,var2=val2 -U LD_PRELOAD,LD_DEBUG\n"
3460 " QEMU_SET_ENV=var1=val2,var2=val2 QEMU_UNSET_ENV=LD_PRELOAD,LD_DEBUG\n"
3461 "Note that if you provide several changes to a single variable\n"
3462 "the last change will stay in effect.\n");
3463
3464 exit(1);
3465}
3466
3467static int parse_args(int argc, char **argv)
3468{
3469 const char *r;
3470 int optind;
42644cee 3471 const struct qemu_argument *arginfo;
fc9c5412
JS		 3472
3473 for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
3474 if (arginfo->env == NULL) {
3475 continue;
3476 }
3477
3478 r = getenv(arginfo->env);
3479 if (r != NULL) {
3480 arginfo->handle_opt(r);
3481 }
3482 }
3483
3484 optind = 1;
3485 for (;;) {
3486 if (optind >= argc) {
3487 break;
3488 }
3489 r = argv[optind];
3490 if (r[0] != '-') {
3491 break;
3492 }
3493 optind++;
3494 r++;
3495 if (!strcmp(r, "-")) {
3496 break;
3497 }
3498
3499 for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
3500 if (!strcmp(r, arginfo->argv)) {
fc9c5412 3501 if (arginfo->has_arg) {
1386d4c0
PM		 3502 if (optind >= argc) {
3503 usage();
3504 }
3505 arginfo->handle_opt(argv[optind]);
fc9c5412 3506 optind++;
1386d4c0
PM		 3507 } else {
3508 arginfo->handle_opt(NULL);
fc9c5412 3509 }
fc9c5412
JS		 3510 break;
3511 }
3512 }
3513
3514 /* no option matched the current argv */
3515 if (arginfo->handle_opt == NULL) {
3516 usage();
3517 }
3518 }
3519
3520 if (optind >= argc) {
3521 usage();
3522 }
3523
3524 filename = argv[optind];
3525 exec_path = argv[optind];
3526
3527 return optind;
3528}
3529
902b3d5c 3530int main(int argc, char **argv, char **envp)
31e31b8a 3531{
01ffc75b 3532 struct target_pt_regs regs1, *regs = &regs1;
31e31b8a 3533 struct image_info info1, *info = &info1;
edf8e2af 3534 struct linux_binprm bprm;
48e15fc2 3535 TaskState *ts;
9349b4f9 3536 CPUArchState *env;
586314f2 3537 int optind;
04a6dfeb 3538 char **target_environ, **wrk;
7d8cec95
AJ		 3539 char **target_argv;
3540 int target_argc;
7d8cec95 3541 int i;
fd4d81dd 3542 int ret;
b12b6a18 3543
ce008c1f
AF		 3544 module_call_init(MODULE_INIT_QOM);
3545
902b3d5c 3546 qemu_cache_utils_init(envp);
3547
04a6dfeb
AJ		 3548 if ((envlist = envlist_create()) == NULL) {
3549 (void) fprintf(stderr, "Unable to allocate envlist\n");
3550 exit(1);
3551 }
3552
3553 /* add current environment into the list */
3554 for (wrk = environ; *wrk != NULL; wrk++) {
3555 (void) envlist_setenv(envlist, *wrk);
3556 }
3557
703e0e89
RH		 3558 /* Read the stack limit from the kernel. If it's "unlimited",
3559 then we can do little else besides use the default. */
3560 {
3561 struct rlimit lim;
3562 if (getrlimit(RLIMIT_STACK, &lim) == 0
81bbe906 3563 && lim.rlim_cur != RLIM_INFINITY
3564 && lim.rlim_cur == (target_long)lim.rlim_cur) {
703e0e89
RH		 3565 guest_stack_size = lim.rlim_cur;
3566 }
3567 }
3568
b1f9be31 3569 cpu_model = NULL;
b5ec5ce0 3570#if defined(cpudef_setup)
3571 cpudef_setup(); /* parse cpu definitions in target config file (TBD) */
3572#endif
3573
fc9c5412 3574 optind = parse_args(argc, argv);
586314f2 3575
31e31b8a 3576 /* Zero out regs */
01ffc75b 3577 memset(regs, 0, sizeof(struct target_pt_regs));
31e31b8a
FB		 3578
3579 /* Zero out image_info */
3580 memset(info, 0, sizeof(struct image_info));
3581
edf8e2af
MW		 3582 memset(&bprm, 0, sizeof (bprm));
3583
74cd30b8
FB		 3584 /* Scan interp_prefix dir for replacement files. */
3585 init_paths(interp_prefix);
3586
46027c07 3587 if (cpu_model == NULL) {
aaed909a 3588#if defined(TARGET_I386)
46027c07
FB		 3589#ifdef TARGET_X86_64
3590 cpu_model = "qemu64";
3591#else
3592 cpu_model = "qemu32";
3593#endif
aaed909a 3594#elif defined(TARGET_ARM)
088ab16c 3595 cpu_model = "any";
d2fbca94
GX		 3596#elif defined(TARGET_UNICORE32)
3597 cpu_model = "any";
aaed909a
FB		 3598#elif defined(TARGET_M68K)
3599 cpu_model = "any";
3600#elif defined(TARGET_SPARC)
3601#ifdef TARGET_SPARC64
3602 cpu_model = "TI UltraSparc II";
3603#else
3604 cpu_model = "Fujitsu MB86904";
46027c07 3605#endif
aaed909a
FB		 3606#elif defined(TARGET_MIPS)
3607#if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64)
3608 cpu_model = "20Kc";
3609#else
3610 cpu_model = "24Kf";
3611#endif
d962783e
JL		 3612#elif defined TARGET_OPENRISC
3613 cpu_model = "or1200";
aaed909a 3614#elif defined(TARGET_PPC)
7ded4f52 3615#ifdef TARGET_PPC64
f7177937 3616 cpu_model = "970fx";
7ded4f52 3617#else
aaed909a 3618 cpu_model = "750";
7ded4f52 3619#endif
aaed909a
FB		 3620#else
3621 cpu_model = "any";
3622#endif
3623 }
d5ab9713
JK		 3624 tcg_exec_init(0);
3625 cpu_exec_init_all();
83fb7adf
FB		 3626 /* NOTE: we need to init the CPU at this stage to get
3627 qemu_host_page_size */
aaed909a
FB		 3628 env = cpu_init(cpu_model);
3629 if (!env) {
3630 fprintf(stderr, "Unable to find CPU definition\n");
3631 exit(1);
3632 }
77868120 3633#if defined(TARGET_SPARC) || defined(TARGET_PPC)
ff18b762 3634 cpu_reset(ENV_GET_CPU(env));
b55a37c9
BS		 3635#endif
3636
d5975363 3637 thread_env = env;
3b46e624 3638
b6741956
FB		 3639 if (getenv("QEMU_STRACE")) {
3640 do_strace = 1;
b92c47c1
TS		 3641 }
3642
04a6dfeb
AJ		 3643 target_environ = envlist_to_environ(envlist, NULL);
3644 envlist_free(envlist);
b12b6a18 3645
379f6698
PB		 3646#if defined(CONFIG_USE_GUEST_BASE)
3647 /*
3648 * Now that page sizes are configured in cpu_init() we can do
3649 * proper page alignment for guest_base.
3650 */
3651 guest_base = HOST_PAGE_ALIGN(guest_base);
68a1c816 3652
806d1021
MI		 3653 if (reserved_va || have_guest_base) {
3654 guest_base = init_guest_space(guest_base, reserved_va, 0,
3655 have_guest_base);
3656 if (guest_base == (unsigned long)-1) {
097b8cb8
PM		 3657 fprintf(stderr, "Unable to reserve 0x%lx bytes of virtual address "
3658 "space for use as guest address space (check your virtual "
3659 "memory ulimit setting or reserve less using -R option)\n",
3660 reserved_va);
68a1c816
PB		 3661 exit(1);
3662 }
97cc7560 3663
806d1021
MI		 3664 if (reserved_va) {
3665 mmap_next_start = reserved_va;
97cc7560
DDAG		 3666 }
3667 }
14f24e14 3668#endif /* CONFIG_USE_GUEST_BASE */
379f6698
PB		 3669
3670 /*
3671 * Read in mmap_min_addr kernel parameter. This value is used
3672 * When loading the ELF image to determine whether guest_base
14f24e14 3673 * is needed. It is also used in mmap_find_vma.
379f6698 3674 */
14f24e14 3675 {
379f6698
PB		 3676 FILE *fp;
3677
3678 if ((fp = fopen("/proc/sys/vm/mmap_min_addr", "r")) != NULL) {
3679 unsigned long tmp;
3680 if (fscanf(fp, "%lu", &tmp) == 1) {
3681 mmap_min_addr = tmp;
3682 qemu_log("host mmap_min_addr=0x%lx\n", mmap_min_addr);
3683 }
3684 fclose(fp);
3685 }
3686 }
379f6698 3687
7d8cec95
AJ		 3688 /*
3689 * Prepare copy of argv vector for target.
3690 */
3691 target_argc = argc - optind;
3692 target_argv = calloc(target_argc + 1, sizeof (char *));
3693 if (target_argv == NULL) {
3694 (void) fprintf(stderr, "Unable to allocate memory for target_argv\n");
3695 exit(1);
3696 }
3697
3698 /*
3699 * If argv0 is specified (using '-0' switch) we replace
3700 * argv[0] pointer with the given one.
3701 */
3702 i = 0;
3703 if (argv0 != NULL) {
3704 target_argv[i++] = strdup(argv0);
3705 }
3706 for (; i < target_argc; i++) {
3707 target_argv[i] = strdup(argv[optind + i]);
3708 }
3709 target_argv[target_argc] = NULL;
3710
7267c094 3711 ts = g_malloc0 (sizeof(TaskState));
edf8e2af
MW		 3712 init_task_state(ts);
3713 /* build Task State */
3714 ts->info = info;
3715 ts->bprm = &bprm;
3716 env->opaque = ts;
3717 task_settid(ts);
3718
fd4d81dd
AP		 3719 ret = loader_exec(filename, target_argv, target_environ, regs,
3720 info, &bprm);
3721 if (ret != 0) {
885c1d10 3722 printf("Error while loading %s: %s\n", filename, strerror(-ret));
b12b6a18
TS		 3723 _exit(1);
3724 }
3725
3726 for (wrk = target_environ; *wrk; wrk++) {
3727 free(*wrk);
31e31b8a 3728 }
3b46e624 3729
b12b6a18
TS		 3730 free(target_environ);
3731
2e77eac6 3732 if (qemu_log_enabled()) {
379f6698
PB		 3733#if defined(CONFIG_USE_GUEST_BASE)
3734 qemu_log("guest_base 0x%lx\n", guest_base);
3735#endif
2e77eac6
BS		 3736 log_page_dump();
3737
3738 qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk);
3739 qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code);
3740 qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n",
3741 info->start_code);
3742 qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n",
3743 info->start_data);
3744 qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data);
3745 qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n",
3746 info->start_stack);
3747 qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk);
3748 qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry);
3749 }
31e31b8a 3750
53a5960a 3751 target_set_brk(info->brk);
31e31b8a 3752 syscall_init();
66fb9763 3753 signal_init();
31e31b8a 3754
9002ec79
RH		 3755#if defined(CONFIG_USE_GUEST_BASE)
3756 /* Now that we've loaded the binary, GUEST_BASE is fixed. Delay
3757 generating the prologue until now so that the prologue can take
3758 the real value of GUEST_BASE into account. */
3759 tcg_prologue_init(&tcg_ctx);
3760#endif
3761
b346ff46 3762#if defined(TARGET_I386)
2e255c6b
FB		 3763 cpu_x86_set_cpl(env, 3);
3764
3802ce26 3765 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
1bde465e 3766 env->hflags |= HF_PE_MASK;
0514ef2f 3767 if (env->features[FEAT_1_EDX] & CPUID_SSE) {
1bde465e
FB		 3768 env->cr[4] |= CR4_OSFXSR_MASK;
3769 env->hflags |= HF_OSFXSR_MASK;
3770 }
d2fd1af7 3771#ifndef TARGET_ABI32
4dbc422b 3772 /* enable 64 bit mode if possible */
0514ef2f 3773 if (!(env->features[FEAT_8000_0001_EDX] & CPUID_EXT2_LM)) {
4dbc422b
FB		 3774 fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n");
3775 exit(1);
3776 }
d2fd1af7 3777 env->cr[4] |= CR4_PAE_MASK;
4dbc422b 3778 env->efer |= MSR_EFER_LMA | MSR_EFER_LME;
d2fd1af7
FB		 3779 env->hflags |= HF_LMA_MASK;
3780#endif
1bde465e 3781
415e561f
FB		 3782 /* flags setup : we activate the IRQs by default as in user mode */
3783 env->eflags |= IF_MASK;
3b46e624 3784
6dbad63e 3785 /* linux register setup */
d2fd1af7 3786#ifndef TARGET_ABI32
84409ddb
JM		 3787 env->regs[R_EAX] = regs->rax;
3788 env->regs[R_EBX] = regs->rbx;
3789 env->regs[R_ECX] = regs->rcx;
3790 env->regs[R_EDX] = regs->rdx;
3791 env->regs[R_ESI] = regs->rsi;
3792 env->regs[R_EDI] = regs->rdi;
3793 env->regs[R_EBP] = regs->rbp;
3794 env->regs[R_ESP] = regs->rsp;
3795 env->eip = regs->rip;
3796#else
0ecfa993
FB		 3797 env->regs[R_EAX] = regs->eax;
3798 env->regs[R_EBX] = regs->ebx;
3799 env->regs[R_ECX] = regs->ecx;
3800 env->regs[R_EDX] = regs->edx;
3801 env->regs[R_ESI] = regs->esi;
3802 env->regs[R_EDI] = regs->edi;
3803 env->regs[R_EBP] = regs->ebp;
3804 env->regs[R_ESP] = regs->esp;
dab2ed99 3805 env->eip = regs->eip;
84409ddb 3806#endif
31e31b8a 3807
f4beb510 3808 /* linux interrupt setup */
e441570f
AZ		 3809#ifndef TARGET_ABI32
3810 env->idt.limit = 511;
3811#else
3812 env->idt.limit = 255;
3813#endif
3814 env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1),
3815 PROT_READ|PROT_WRITE,
3816 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
3817 idt_table = g2h(env->idt.base);
f4beb510
FB		 3818 set_idt(0, 0);
3819 set_idt(1, 0);
3820 set_idt(2, 0);
3821 set_idt(3, 3);
3822 set_idt(4, 3);
ec95da6c 3823 set_idt(5, 0);
f4beb510
FB		 3824 set_idt(6, 0);
3825 set_idt(7, 0);
3826 set_idt(8, 0);
3827 set_idt(9, 0);
3828 set_idt(10, 0);
3829 set_idt(11, 0);
3830 set_idt(12, 0);
3831 set_idt(13, 0);
3832 set_idt(14, 0);
3833 set_idt(15, 0);
3834 set_idt(16, 0);
3835 set_idt(17, 0);
3836 set_idt(18, 0);
3837 set_idt(19, 0);
3838 set_idt(0x80, 3);
3839
6dbad63e 3840 /* linux segment setup */
8d18e893
FB		 3841 {
3842 uint64_t *gdt_table;
e441570f
AZ		 3843 env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES,
3844 PROT_READ|PROT_WRITE,
3845 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
8d18e893 3846 env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1;
e441570f 3847 gdt_table = g2h(env->gdt.base);
d2fd1af7 3848#ifdef TARGET_ABI32
8d18e893
FB		 3849 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
3850 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3851 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
d2fd1af7
FB		 3852#else
3853 /* 64 bit code segment */
3854 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
3855 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3856 DESC_L_MASK |
3857 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
3858#endif
8d18e893
FB		 3859 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
3860 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
3861 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
3862 }
6dbad63e 3863 cpu_x86_load_seg(env, R_CS, __USER_CS);
d2fd1af7
FB		 3864 cpu_x86_load_seg(env, R_SS, __USER_DS);
3865#ifdef TARGET_ABI32
6dbad63e
FB		 3866 cpu_x86_load_seg(env, R_DS, __USER_DS);
3867 cpu_x86_load_seg(env, R_ES, __USER_DS);
6dbad63e
FB		 3868 cpu_x86_load_seg(env, R_FS, __USER_DS);
3869 cpu_x86_load_seg(env, R_GS, __USER_DS);
d6eb40f6
TS		 3870 /* This hack makes Wine work... */
3871 env->segs[R_FS].selector = 0;
d2fd1af7
FB		 3872#else
3873 cpu_x86_load_seg(env, R_DS, 0);
3874 cpu_x86_load_seg(env, R_ES, 0);
3875 cpu_x86_load_seg(env, R_FS, 0);
3876 cpu_x86_load_seg(env, R_GS, 0);
3877#endif
b346ff46
FB		 3878#elif defined(TARGET_ARM)
3879 {
3880 int i;
b5ff1b31 3881 cpsr_write(env, regs->uregs[16], 0xffffffff);
b346ff46
FB		 3882 for(i = 0; i < 16; i++) {
3883 env->regs[i] = regs->uregs[i];
3884 }
d8fd2954
PB		 3885 /* Enable BE8. */
3886 if (EF_ARM_EABI_VERSION(info->elf_flags) >= EF_ARM_EABI_VER4
3887 && (info->elf_flags & EF_ARM_BE8)) {
3888 env->bswap_code = 1;
3889 }
b346ff46 3890 }
d2fbca94
GX		 3891#elif defined(TARGET_UNICORE32)
3892 {
3893 int i;
3894 cpu_asr_write(env, regs->uregs[32], 0xffffffff);
3895 for (i = 0; i < 32; i++) {
3896 env->regs[i] = regs->uregs[i];
3897 }
3898 }
93ac68bc 3899#elif defined(TARGET_SPARC)
060366c5
FB		 3900 {
3901 int i;
3902 env->pc = regs->pc;
3903 env->npc = regs->npc;
3904 env->y = regs->y;
3905 for(i = 0; i < 8; i++)
3906 env->gregs[i] = regs->u_regs[i];
3907 for(i = 0; i < 8; i++)
3908 env->regwptr[i] = regs->u_regs[i + 8];
3909 }
67867308
FB		 3910#elif defined(TARGET_PPC)
3911 {
3912 int i;
3fc6c082 3913
0411a972
JM		 3914#if defined(TARGET_PPC64)
3915#if defined(TARGET_ABI32)
3916 env->msr &= ~((target_ulong)1 << MSR_SF);
e85e7c6e 3917#else
0411a972
JM		 3918 env->msr |= (target_ulong)1 << MSR_SF;
3919#endif
84409ddb 3920#endif
67867308
FB		 3921 env->nip = regs->nip;
3922 for(i = 0; i < 32; i++) {
3923 env->gpr[i] = regs->gpr[i];
3924 }
3925 }
e6e5906b
PB		 3926#elif defined(TARGET_M68K)
3927 {
e6e5906b
PB		 3928 env->pc = regs->pc;
3929 env->dregs[0] = regs->d0;
3930 env->dregs[1] = regs->d1;
3931 env->dregs[2] = regs->d2;
3932 env->dregs[3] = regs->d3;
3933 env->dregs[4] = regs->d4;
3934 env->dregs[5] = regs->d5;
3935 env->dregs[6] = regs->d6;
3936 env->dregs[7] = regs->d7;
3937 env->aregs[0] = regs->a0;
3938 env->aregs[1] = regs->a1;
3939 env->aregs[2] = regs->a2;
3940 env->aregs[3] = regs->a3;
3941 env->aregs[4] = regs->a4;
3942 env->aregs[5] = regs->a5;
3943 env->aregs[6] = regs->a6;
3944 env->aregs[7] = regs->usp;
3945 env->sr = regs->sr;
3946 ts->sim_syscalls = 1;
3947 }
b779e29e
EI		 3948#elif defined(TARGET_MICROBLAZE)
3949 {
3950 env->regs[0] = regs->r0;
3951 env->regs[1] = regs->r1;
3952 env->regs[2] = regs->r2;
3953 env->regs[3] = regs->r3;
3954 env->regs[4] = regs->r4;
3955 env->regs[5] = regs->r5;
3956 env->regs[6] = regs->r6;
3957 env->regs[7] = regs->r7;
3958 env->regs[8] = regs->r8;
3959 env->regs[9] = regs->r9;
3960 env->regs[10] = regs->r10;
3961 env->regs[11] = regs->r11;
3962 env->regs[12] = regs->r12;
3963 env->regs[13] = regs->r13;
3964 env->regs[14] = regs->r14;
3965 env->regs[15] = regs->r15;
3966 env->regs[16] = regs->r16;
3967 env->regs[17] = regs->r17;
3968 env->regs[18] = regs->r18;
3969 env->regs[19] = regs->r19;
3970 env->regs[20] = regs->r20;
3971 env->regs[21] = regs->r21;
3972 env->regs[22] = regs->r22;
3973 env->regs[23] = regs->r23;
3974 env->regs[24] = regs->r24;
3975 env->regs[25] = regs->r25;
3976 env->regs[26] = regs->r26;
3977 env->regs[27] = regs->r27;
3978 env->regs[28] = regs->r28;
3979 env->regs[29] = regs->r29;
3980 env->regs[30] = regs->r30;
3981 env->regs[31] = regs->r31;
3982 env->sregs[SR_PC] = regs->pc;
3983 }
048f6b4d
FB		 3984#elif defined(TARGET_MIPS)
3985 {
3986 int i;
3987
3988 for(i = 0; i < 32; i++) {
b5dc7732 3989 env->active_tc.gpr[i] = regs->regs[i];
048f6b4d 3990 }
0fddbbf2
NF		 3991 env->active_tc.PC = regs->cp0_epc & ~(target_ulong)1;
3992 if (regs->cp0_epc & 1) {
3993 env->hflags |= MIPS_HFLAG_M16;
3994 }
048f6b4d 3995 }
d962783e
JL		 3996#elif defined(TARGET_OPENRISC)
3997 {
3998 int i;
3999
4000 for (i = 0; i < 32; i++) {
4001 env->gpr[i] = regs->gpr[i];
4002 }
4003
4004 env->sr = regs->sr;
4005 env->pc = regs->pc;
4006 }
fdf9b3e8
FB		 4007#elif defined(TARGET_SH4)
4008 {
4009 int i;
4010
4011 for(i = 0; i < 16; i++) {
4012 env->gregs[i] = regs->regs[i];
4013 }
4014 env->pc = regs->pc;
4015 }
7a3148a9
JM		 4016#elif defined(TARGET_ALPHA)
4017 {
4018 int i;
4019
4020 for(i = 0; i < 28; i++) {
992f48a0 4021 env->ir[i] = ((abi_ulong *)regs)[i];
7a3148a9 4022 }
dad081ee 4023 env->ir[IR_SP] = regs->usp;
7a3148a9 4024 env->pc = regs->pc;
7a3148a9 4025 }
48733d19
TS		 4026#elif defined(TARGET_CRIS)
4027 {
4028 env->regs[0] = regs->r0;
4029 env->regs[1] = regs->r1;
4030 env->regs[2] = regs->r2;
4031 env->regs[3] = regs->r3;
4032 env->regs[4] = regs->r4;
4033 env->regs[5] = regs->r5;
4034 env->regs[6] = regs->r6;
4035 env->regs[7] = regs->r7;
4036 env->regs[8] = regs->r8;
4037 env->regs[9] = regs->r9;
4038 env->regs[10] = regs->r10;
4039 env->regs[11] = regs->r11;
4040 env->regs[12] = regs->r12;
4041 env->regs[13] = regs->r13;
4042 env->regs[14] = info->start_stack;
4043 env->regs[15] = regs->acr;
4044 env->pc = regs->erp;
4045 }
a4c075f1
UH		 4046#elif defined(TARGET_S390X)
4047 {
4048 int i;
4049 for (i = 0; i < 16; i++) {
4050 env->regs[i] = regs->gprs[i];
4051 }
4052 env->psw.mask = regs->psw.mask;
4053 env->psw.addr = regs->psw.addr;
4054 }
b346ff46
FB		 4055#else
4056#error unsupported target CPU
4057#endif
31e31b8a 4058
d2fbca94 4059#if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
a87295e8
PB		 4060 ts->stack_base = info->start_stack;
4061 ts->heap_base = info->brk;
4062 /* This will be filled in on the first SYS_HEAPINFO call. */
4063 ts->heap_limit = 0;
4064#endif
4065
74c33bed 4066 if (gdbstub_port) {
ff7a981a
PM		 4067 if (gdbserver_start(gdbstub_port) < 0) {
4068 fprintf(stderr, "qemu: could not open gdbserver on port %d\n",
4069 gdbstub_port);
4070 exit(1);
4071 }
1fddef4b
FB		 4072 gdb_handlesig(env, 0);
4073 }
1b6b029e
FB		 4074 cpu_loop(env);
4075 /* never exits */
31e31b8a
FB		 4076 return 0;
4077}
Qemu copy for testing