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bellard31e31b82003-02-18 22:55:36 +00001/*
bellard93ac68b2003-09-30 20:57:29 +00002 * qemu user main
ths5fafdf22007-09-16 21:08:06 +00003 *
bellard68d0f702008-01-06 17:21:48 +00004 * Copyright (c) 2003-2008 Fabrice Bellard
bellard31e31b82003-02-18 22:55:36 +00005 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
blueswir1530e7612009-01-05 18:11:53 +000018 * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 * MA 02110-1301, USA.
bellard31e31b82003-02-18 22:55:36 +000020 */
21#include <stdlib.h>
22#include <stdio.h>
23#include <stdarg.h>
bellard04369ff2003-03-20 22:33:23 +000024#include <string.h>
bellard31e31b82003-02-18 22:55:36 +000025#include <errno.h>
bellard0ecfa992003-03-03 14:32:43 +000026#include <unistd.h>
balroge4415702008-11-10 02:55:33 +000027#include <sys/mman.h>
bellard31e31b82003-02-18 22:55:36 +000028
bellard3ef693a2003-03-23 20:17:16 +000029#include "qemu.h"
aurel32ca10f862008-04-11 21:35:42 +000030#include "qemu-common.h"
malc902b3d52008-12-10 19:18:40 +000031#include "cache-utils.h"
pbrookd5975362008-06-07 20:50:51 +000032/* For tb_lock */
33#include "exec-all.h"
bellard31e31b82003-02-18 22:55:36 +000034
aurel3204a6dfe2009-01-30 19:59:17 +000035
36#include "envlist.h"
37
bellard3ef693a2003-03-23 20:17:16 +000038#define DEBUG_LOGFILE "/tmp/qemu.log"
bellard586314f2003-03-03 15:02:29 +000039
aurel32d088d662009-01-30 20:09:01 +000040char *exec_path;
41
bellard74cd30b2003-04-11 00:13:41 +000042static const char *interp_prefix = CONFIG_QEMU_PREFIX;
pbrookc5937222006-05-14 11:30:38 +000043const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
bellard586314f2003-03-03 15:02:29 +000044
bellard3a4739d2003-10-28 00:48:22 +000045#if defined(__i386__) && !defined(CONFIG_STATIC)
bellardf801f972003-04-07 21:31:06 +000046/* Force usage of an ELF interpreter even if it is an ELF shared
47 object ! */
48const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2";
bellard43047632003-05-29 20:05:35 +000049#endif
bellard74cd30b2003-04-11 00:13:41 +000050
bellard93ac68b2003-09-30 20:57:29 +000051/* for recent libc, we add these dummy symbols which are not declared
bellard74cd30b2003-04-11 00:13:41 +000052 when generating a linked object (bug in ld ?) */
bellardfbf59242004-07-10 18:18:19 +000053#if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined(CONFIG_STATIC)
bellard46027c02007-11-08 13:56:19 +000054asm(".globl __preinit_array_start\n"
55 ".globl __preinit_array_end\n"
56 ".globl __init_array_start\n"
57 ".globl __init_array_end\n"
58 ".globl __fini_array_start\n"
59 ".globl __fini_array_end\n"
60 ".section \".rodata\"\n"
61 "__preinit_array_start:\n"
62 "__preinit_array_end:\n"
63 "__init_array_start:\n"
64 "__init_array_end:\n"
65 "__fini_array_start:\n"
66 "__fini_array_end:\n"
ths7bba1ee2008-01-08 14:39:43 +000067 ".long 0\n"
68 ".previous\n");
bellard74cd30b2003-04-11 00:13:41 +000069#endif
70
bellard9de5e442003-03-23 16:49:39 +000071/* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
72 we allocate a bigger stack. Need a better solution, for example
73 by remapping the process stack directly at the right place */
74unsigned long x86_stack_size = 512 * 1024;
bellard31e31b82003-02-18 22:55:36 +000075
76void gemu_log(const char *fmt, ...)
77{
78 va_list ap;
79
80 va_start(ap, fmt);
81 vfprintf(stderr, fmt, ap);
82 va_end(ap);
83}
84
bellard61190b12004-01-04 23:54:31 +000085void cpu_outb(CPUState *env, int addr, int val)
bellard367e86e2003-03-01 17:13:26 +000086{
87 fprintf(stderr, "outb: port=0x%04x, data=%02x\n", addr, val);
88}
89
bellard61190b12004-01-04 23:54:31 +000090void cpu_outw(CPUState *env, int addr, int val)
bellard367e86e2003-03-01 17:13:26 +000091{
92 fprintf(stderr, "outw: port=0x%04x, data=%04x\n", addr, val);
93}
94
bellard61190b12004-01-04 23:54:31 +000095void cpu_outl(CPUState *env, int addr, int val)
bellard367e86e2003-03-01 17:13:26 +000096{
97 fprintf(stderr, "outl: port=0x%04x, data=%08x\n", addr, val);
98}
99
bellard61190b12004-01-04 23:54:31 +0000100int cpu_inb(CPUState *env, int addr)
bellard367e86e2003-03-01 17:13:26 +0000101{
102 fprintf(stderr, "inb: port=0x%04x\n", addr);
103 return 0;
104}
105
bellard61190b12004-01-04 23:54:31 +0000106int cpu_inw(CPUState *env, int addr)
bellard367e86e2003-03-01 17:13:26 +0000107{
108 fprintf(stderr, "inw: port=0x%04x\n", addr);
109 return 0;
110}
111
bellard61190b12004-01-04 23:54:31 +0000112int cpu_inl(CPUState *env, int addr)
bellard367e86e2003-03-01 17:13:26 +0000113{
114 fprintf(stderr, "inl: port=0x%04x\n", addr);
115 return 0;
116}
117
blueswir18fcd3692008-08-17 20:26:25 +0000118#if defined(TARGET_I386)
bellarda541f292004-04-12 20:39:29 +0000119int cpu_get_pic_interrupt(CPUState *env)
bellard92ccca62003-06-24 13:30:31 +0000120{
121 return -1;
122}
blueswir18fcd3692008-08-17 20:26:25 +0000123#endif
bellard92ccca62003-06-24 13:30:31 +0000124
bellard28ab0e22004-05-20 14:02:14 +0000125/* timers for rdtsc */
126
bellard1dce7c32006-07-13 23:20:22 +0000127#if 0
bellard28ab0e22004-05-20 14:02:14 +0000128
129static uint64_t emu_time;
130
131int64_t cpu_get_real_ticks(void)
132{
133 return emu_time++;
134}
135
136#endif
137
pbrookd5975362008-06-07 20:50:51 +0000138#if defined(USE_NPTL)
139/***********************************************************/
140/* Helper routines for implementing atomic operations. */
141
142/* To implement exclusive operations we force all cpus to syncronise.
143 We don't require a full sync, only that no cpus are executing guest code.
144 The alternative is to map target atomic ops onto host equivalents,
145 which requires quite a lot of per host/target work. */
146static pthread_mutex_t exclusive_lock = PTHREAD_MUTEX_INITIALIZER;
147static pthread_cond_t exclusive_cond = PTHREAD_COND_INITIALIZER;
148static pthread_cond_t exclusive_resume = PTHREAD_COND_INITIALIZER;
149static int pending_cpus;
150
151/* Make sure everything is in a consistent state for calling fork(). */
152void fork_start(void)
153{
154 mmap_fork_start();
155 pthread_mutex_lock(&tb_lock);
156 pthread_mutex_lock(&exclusive_lock);
157}
158
159void fork_end(int child)
160{
161 if (child) {
162 /* Child processes created by fork() only have a single thread.
163 Discard information about the parent threads. */
164 first_cpu = thread_env;
165 thread_env->next_cpu = NULL;
166 pending_cpus = 0;
167 pthread_mutex_init(&exclusive_lock, NULL);
168 pthread_cond_init(&exclusive_cond, NULL);
169 pthread_cond_init(&exclusive_resume, NULL);
170 pthread_mutex_init(&tb_lock, NULL);
aurel322b1319c2008-12-18 22:44:04 +0000171 gdbserver_fork(thread_env);
pbrookd5975362008-06-07 20:50:51 +0000172 } else {
173 pthread_mutex_unlock(&exclusive_lock);
174 pthread_mutex_unlock(&tb_lock);
175 }
176 mmap_fork_end(child);
177}
178
179/* Wait for pending exclusive operations to complete. The exclusive lock
180 must be held. */
181static inline void exclusive_idle(void)
182{
183 while (pending_cpus) {
184 pthread_cond_wait(&exclusive_resume, &exclusive_lock);
185 }
186}
187
188/* Start an exclusive operation.
189 Must only be called from outside cpu_arm_exec. */
190static inline void start_exclusive(void)
191{
192 CPUState *other;
193 pthread_mutex_lock(&exclusive_lock);
194 exclusive_idle();
195
196 pending_cpus = 1;
197 /* Make all other cpus stop executing. */
198 for (other = first_cpu; other; other = other->next_cpu) {
199 if (other->running) {
200 pending_cpus++;
201 cpu_interrupt(other, CPU_INTERRUPT_EXIT);
202 }
203 }
204 if (pending_cpus > 1) {
205 pthread_cond_wait(&exclusive_cond, &exclusive_lock);
206 }
207}
208
209/* Finish an exclusive operation. */
210static inline void end_exclusive(void)
211{
212 pending_cpus = 0;
213 pthread_cond_broadcast(&exclusive_resume);
214 pthread_mutex_unlock(&exclusive_lock);
215}
216
217/* Wait for exclusive ops to finish, and begin cpu execution. */
218static inline void cpu_exec_start(CPUState *env)
219{
220 pthread_mutex_lock(&exclusive_lock);
221 exclusive_idle();
222 env->running = 1;
223 pthread_mutex_unlock(&exclusive_lock);
224}
225
226/* Mark cpu as not executing, and release pending exclusive ops. */
227static inline void cpu_exec_end(CPUState *env)
228{
229 pthread_mutex_lock(&exclusive_lock);
230 env->running = 0;
231 if (pending_cpus > 1) {
232 pending_cpus--;
233 if (pending_cpus == 1) {
234 pthread_cond_signal(&exclusive_cond);
235 }
236 }
237 exclusive_idle();
238 pthread_mutex_unlock(&exclusive_lock);
239}
240#else /* if !USE_NPTL */
241/* These are no-ops because we are not threadsafe. */
242static inline void cpu_exec_start(CPUState *env)
243{
244}
245
246static inline void cpu_exec_end(CPUState *env)
247{
248}
249
250static inline void start_exclusive(void)
251{
252}
253
254static inline void end_exclusive(void)
255{
256}
257
258void fork_start(void)
259{
260}
261
262void fork_end(int child)
263{
aurel322b1319c2008-12-18 22:44:04 +0000264 if (child) {
265 gdbserver_fork(thread_env);
266 }
pbrookd5975362008-06-07 20:50:51 +0000267}
268#endif
269
270
bellarda541f292004-04-12 20:39:29 +0000271#ifdef TARGET_I386
272/***********************************************************/
273/* CPUX86 core interface */
274
bellard02a16022006-09-24 18:48:23 +0000275void cpu_smm_update(CPUState *env)
276{
277}
278
bellard28ab0e22004-05-20 14:02:14 +0000279uint64_t cpu_get_tsc(CPUX86State *env)
280{
281 return cpu_get_real_ticks();
282}
283
ths5fafdf22007-09-16 21:08:06 +0000284static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
bellardf4beb512003-05-27 23:28:08 +0000285 int flags)
bellard6dbad632003-03-16 18:05:05 +0000286{
bellardf4beb512003-05-27 23:28:08 +0000287 unsigned int e1, e2;
pbrook53a59602006-03-25 19:31:22 +0000288 uint32_t *p;
bellard6dbad632003-03-16 18:05:05 +0000289 e1 = (addr << 16) | (limit & 0xffff);
290 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
bellardf4beb512003-05-27 23:28:08 +0000291 e2 |= flags;
pbrook53a59602006-03-25 19:31:22 +0000292 p = ptr;
malcd538e8f2008-08-20 22:39:26 +0000293 p[0] = tswap32(e1);
294 p[1] = tswap32(e2);
bellardf4beb512003-05-27 23:28:08 +0000295}
296
balroge4415702008-11-10 02:55:33 +0000297static uint64_t *idt_table;
blueswir1eb38c522008-09-06 17:47:39 +0000298#ifdef TARGET_X86_64
bellardd2fd1af2007-11-14 18:08:56 +0000299static void set_gate64(void *ptr, unsigned int type, unsigned int dpl,
300 uint64_t addr, unsigned int sel)
301{
bellard4dbc4222007-11-15 15:27:03 +0000302 uint32_t *p, e1, e2;
bellardd2fd1af2007-11-14 18:08:56 +0000303 e1 = (addr & 0xffff) | (sel << 16);
304 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
305 p = ptr;
bellard4dbc4222007-11-15 15:27:03 +0000306 p[0] = tswap32(e1);
307 p[1] = tswap32(e2);
308 p[2] = tswap32(addr >> 32);
309 p[3] = 0;
bellardd2fd1af2007-11-14 18:08:56 +0000310}
311/* only dpl matters as we do only user space emulation */
312static void set_idt(int n, unsigned int dpl)
313{
314 set_gate64(idt_table + n * 2, 0, dpl, 0, 0);
315}
316#else
ths5fafdf22007-09-16 21:08:06 +0000317static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
bellardd2fd1af2007-11-14 18:08:56 +0000318 uint32_t addr, unsigned int sel)
bellardf4beb512003-05-27 23:28:08 +0000319{
bellard4dbc4222007-11-15 15:27:03 +0000320 uint32_t *p, e1, e2;
bellardf4beb512003-05-27 23:28:08 +0000321 e1 = (addr & 0xffff) | (sel << 16);
322 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
pbrook53a59602006-03-25 19:31:22 +0000323 p = ptr;
bellard4dbc4222007-11-15 15:27:03 +0000324 p[0] = tswap32(e1);
325 p[1] = tswap32(e2);
bellard6dbad632003-03-16 18:05:05 +0000326}
327
bellardf4beb512003-05-27 23:28:08 +0000328/* only dpl matters as we do only user space emulation */
329static void set_idt(int n, unsigned int dpl)
330{
331 set_gate(idt_table + n, 0, dpl, 0, 0);
332}
bellardd2fd1af2007-11-14 18:08:56 +0000333#endif
bellard31e31b82003-02-18 22:55:36 +0000334
bellard89e957e2003-05-10 12:33:15 +0000335void cpu_loop(CPUX86State *env)
bellard1b6b0292003-03-22 17:31:38 +0000336{
bellardbc8a22c2003-03-30 21:02:40 +0000337 int trapnr;
blueswir1992f48a2007-10-14 16:27:31 +0000338 abi_ulong pc;
bellard9de5e442003-03-23 16:49:39 +0000339 target_siginfo_t info;
bellard851e67a2003-03-29 16:53:14 +0000340
bellard1b6b0292003-03-22 17:31:38 +0000341 for(;;) {
bellardbc8a22c2003-03-30 21:02:40 +0000342 trapnr = cpu_x86_exec(env);
bellardbc8a22c2003-03-30 21:02:40 +0000343 switch(trapnr) {
bellardf4beb512003-05-27 23:28:08 +0000344 case 0x80:
bellardd2fd1af2007-11-14 18:08:56 +0000345 /* linux syscall from int $0x80 */
ths5fafdf22007-09-16 21:08:06 +0000346 env->regs[R_EAX] = do_syscall(env,
347 env->regs[R_EAX],
bellardf4beb512003-05-27 23:28:08 +0000348 env->regs[R_EBX],
349 env->regs[R_ECX],
350 env->regs[R_EDX],
351 env->regs[R_ESI],
352 env->regs[R_EDI],
353 env->regs[R_EBP]);
354 break;
bellardd2fd1af2007-11-14 18:08:56 +0000355#ifndef TARGET_ABI32
356 case EXCP_SYSCALL:
357 /* linux syscall from syscall intruction */
358 env->regs[R_EAX] = do_syscall(env,
359 env->regs[R_EAX],
360 env->regs[R_EDI],
361 env->regs[R_ESI],
362 env->regs[R_EDX],
363 env->regs[10],
364 env->regs[8],
365 env->regs[9]);
366 env->eip = env->exception_next_eip;
367 break;
368#endif
bellardf4beb512003-05-27 23:28:08 +0000369 case EXCP0B_NOSEG:
370 case EXCP0C_STACK:
371 info.si_signo = SIGBUS;
372 info.si_errno = 0;
373 info.si_code = TARGET_SI_KERNEL;
374 info._sifields._sigfault._addr = 0;
pbrook624f7972008-05-31 16:11:38 +0000375 queue_signal(env, info.si_signo, &info);
bellardf4beb512003-05-27 23:28:08 +0000376 break;
bellard1b6b0292003-03-22 17:31:38 +0000377 case EXCP0D_GPF:
bellardd2fd1af2007-11-14 18:08:56 +0000378 /* XXX: potential problem if ABI32 */
j_mayer84409dd2007-04-06 08:56:50 +0000379#ifndef TARGET_X86_64
bellard851e67a2003-03-29 16:53:14 +0000380 if (env->eflags & VM_MASK) {
bellard89e957e2003-05-10 12:33:15 +0000381 handle_vm86_fault(env);
j_mayer84409dd2007-04-06 08:56:50 +0000382 } else
383#endif
384 {
bellardf4beb512003-05-27 23:28:08 +0000385 info.si_signo = SIGSEGV;
386 info.si_errno = 0;
387 info.si_code = TARGET_SI_KERNEL;
388 info._sifields._sigfault._addr = 0;
pbrook624f7972008-05-31 16:11:38 +0000389 queue_signal(env, info.si_signo, &info);
bellard1b6b0292003-03-22 17:31:38 +0000390 }
391 break;
bellardb689bc52003-05-08 15:33:33 +0000392 case EXCP0E_PAGE:
393 info.si_signo = SIGSEGV;
394 info.si_errno = 0;
395 if (!(env->error_code & 1))
396 info.si_code = TARGET_SEGV_MAPERR;
397 else
398 info.si_code = TARGET_SEGV_ACCERR;
bellard970a87a2003-06-21 13:13:25 +0000399 info._sifields._sigfault._addr = env->cr[2];
pbrook624f7972008-05-31 16:11:38 +0000400 queue_signal(env, info.si_signo, &info);
bellardb689bc52003-05-08 15:33:33 +0000401 break;
bellard9de5e442003-03-23 16:49:39 +0000402 case EXCP00_DIVZ:
j_mayer84409dd2007-04-06 08:56:50 +0000403#ifndef TARGET_X86_64
bellardbc8a22c2003-03-30 21:02:40 +0000404 if (env->eflags & VM_MASK) {
bellard447db212003-05-10 15:10:36 +0000405 handle_vm86_trap(env, trapnr);
j_mayer84409dd2007-04-06 08:56:50 +0000406 } else
407#endif
408 {
bellardbc8a22c2003-03-30 21:02:40 +0000409 /* division by zero */
410 info.si_signo = SIGFPE;
411 info.si_errno = 0;
412 info.si_code = TARGET_FPE_INTDIV;
413 info._sifields._sigfault._addr = env->eip;
pbrook624f7972008-05-31 16:11:38 +0000414 queue_signal(env, info.si_signo, &info);
bellardbc8a22c2003-03-30 21:02:40 +0000415 }
bellard9de5e442003-03-23 16:49:39 +0000416 break;
aliguori01df0402008-11-18 21:08:15 +0000417 case EXCP01_DB:
bellard447db212003-05-10 15:10:36 +0000418 case EXCP03_INT3:
j_mayer84409dd2007-04-06 08:56:50 +0000419#ifndef TARGET_X86_64
bellard447db212003-05-10 15:10:36 +0000420 if (env->eflags & VM_MASK) {
421 handle_vm86_trap(env, trapnr);
j_mayer84409dd2007-04-06 08:56:50 +0000422 } else
423#endif
424 {
bellard447db212003-05-10 15:10:36 +0000425 info.si_signo = SIGTRAP;
426 info.si_errno = 0;
aliguori01df0402008-11-18 21:08:15 +0000427 if (trapnr == EXCP01_DB) {
bellard447db212003-05-10 15:10:36 +0000428 info.si_code = TARGET_TRAP_BRKPT;
429 info._sifields._sigfault._addr = env->eip;
430 } else {
431 info.si_code = TARGET_SI_KERNEL;
432 info._sifields._sigfault._addr = 0;
433 }
pbrook624f7972008-05-31 16:11:38 +0000434 queue_signal(env, info.si_signo, &info);
bellard447db212003-05-10 15:10:36 +0000435 }
436 break;
bellard9de5e442003-03-23 16:49:39 +0000437 case EXCP04_INTO:
438 case EXCP05_BOUND:
j_mayer84409dd2007-04-06 08:56:50 +0000439#ifndef TARGET_X86_64
bellardbc8a22c2003-03-30 21:02:40 +0000440 if (env->eflags & VM_MASK) {
bellard447db212003-05-10 15:10:36 +0000441 handle_vm86_trap(env, trapnr);
j_mayer84409dd2007-04-06 08:56:50 +0000442 } else
443#endif
444 {
bellardbc8a22c2003-03-30 21:02:40 +0000445 info.si_signo = SIGSEGV;
446 info.si_errno = 0;
bellardb689bc52003-05-08 15:33:33 +0000447 info.si_code = TARGET_SI_KERNEL;
bellardbc8a22c2003-03-30 21:02:40 +0000448 info._sifields._sigfault._addr = 0;
pbrook624f7972008-05-31 16:11:38 +0000449 queue_signal(env, info.si_signo, &info);
bellardbc8a22c2003-03-30 21:02:40 +0000450 }
bellard9de5e442003-03-23 16:49:39 +0000451 break;
452 case EXCP06_ILLOP:
453 info.si_signo = SIGILL;
454 info.si_errno = 0;
455 info.si_code = TARGET_ILL_ILLOPN;
456 info._sifields._sigfault._addr = env->eip;
pbrook624f7972008-05-31 16:11:38 +0000457 queue_signal(env, info.si_signo, &info);
bellard9de5e442003-03-23 16:49:39 +0000458 break;
459 case EXCP_INTERRUPT:
460 /* just indicate that signals should be handled asap */
461 break;
bellard1fddef42005-04-17 19:16:13 +0000462 case EXCP_DEBUG:
463 {
464 int sig;
465
466 sig = gdb_handlesig (env, TARGET_SIGTRAP);
467 if (sig)
468 {
469 info.si_signo = sig;
470 info.si_errno = 0;
471 info.si_code = TARGET_TRAP_BRKPT;
pbrook624f7972008-05-31 16:11:38 +0000472 queue_signal(env, info.si_signo, &info);
bellard1fddef42005-04-17 19:16:13 +0000473 }
474 }
475 break;
bellard1b6b0292003-03-22 17:31:38 +0000476 default:
bellard970a87a2003-06-21 13:13:25 +0000477 pc = env->segs[R_CS].base + env->eip;
ths5fafdf22007-09-16 21:08:06 +0000478 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
bellardbc8a22c2003-03-30 21:02:40 +0000479 (long)pc, trapnr);
bellard1b6b0292003-03-22 17:31:38 +0000480 abort();
481 }
bellard66fb9762003-03-23 01:06:05 +0000482 process_pending_signals(env);
bellard1b6b0292003-03-22 17:31:38 +0000483 }
484}
bellardb346ff42003-06-15 20:05:50 +0000485#endif
486
487#ifdef TARGET_ARM
488
blueswir1992f48a2007-10-14 16:27:31 +0000489static void arm_cache_flush(abi_ulong start, abi_ulong last)
bellard6f1f31c2004-04-25 18:00:45 +0000490{
blueswir1992f48a2007-10-14 16:27:31 +0000491 abi_ulong addr, last1;
bellard6f1f31c2004-04-25 18:00:45 +0000492
493 if (last < start)
494 return;
495 addr = start;
496 for(;;) {
497 last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
498 if (last1 > last)
499 last1 = last;
500 tb_invalidate_page_range(addr, last1 + 1);
501 if (last1 == last)
502 break;
503 addr = last1 + 1;
504 }
505}
506
pbrookfbb4a2e2008-05-29 00:20:44 +0000507/* Handle a jump to the kernel code page. */
508static int
509do_kernel_trap(CPUARMState *env)
510{
511 uint32_t addr;
512 uint32_t cpsr;
513 uint32_t val;
514
515 switch (env->regs[15]) {
516 case 0xffff0fa0: /* __kernel_memory_barrier */
517 /* ??? No-op. Will need to do better for SMP. */
518 break;
519 case 0xffff0fc0: /* __kernel_cmpxchg */
pbrookd5975362008-06-07 20:50:51 +0000520 /* XXX: This only works between threads, not between processes.
521 It's probably possible to implement this with native host
522 operations. However things like ldrex/strex are much harder so
523 there's not much point trying. */
524 start_exclusive();
pbrookfbb4a2e2008-05-29 00:20:44 +0000525 cpsr = cpsr_read(env);
526 addr = env->regs[2];
527 /* FIXME: This should SEGV if the access fails. */
528 if (get_user_u32(val, addr))
529 val = ~env->regs[0];
530 if (val == env->regs[0]) {
531 val = env->regs[1];
532 /* FIXME: Check for segfaults. */
533 put_user_u32(val, addr);
534 env->regs[0] = 0;
535 cpsr |= CPSR_C;
536 } else {
537 env->regs[0] = -1;
538 cpsr &= ~CPSR_C;
539 }
540 cpsr_write(env, cpsr, CPSR_C);
pbrookd5975362008-06-07 20:50:51 +0000541 end_exclusive();
pbrookfbb4a2e2008-05-29 00:20:44 +0000542 break;
543 case 0xffff0fe0: /* __kernel_get_tls */
544 env->regs[0] = env->cp15.c13_tls2;
545 break;
546 default:
547 return 1;
548 }
549 /* Jump back to the caller. */
550 addr = env->regs[14];
551 if (addr & 1) {
552 env->thumb = 1;
553 addr &= ~1;
554 }
555 env->regs[15] = addr;
556
557 return 0;
558}
559
bellardb346ff42003-06-15 20:05:50 +0000560void cpu_loop(CPUARMState *env)
561{
562 int trapnr;
563 unsigned int n, insn;
564 target_siginfo_t info;
bellardb5ff1b32005-11-26 10:38:39 +0000565 uint32_t addr;
ths3b46e622007-09-17 08:09:54 +0000566
bellardb346ff42003-06-15 20:05:50 +0000567 for(;;) {
pbrookd5975362008-06-07 20:50:51 +0000568 cpu_exec_start(env);
bellardb346ff42003-06-15 20:05:50 +0000569 trapnr = cpu_arm_exec(env);
pbrookd5975362008-06-07 20:50:51 +0000570 cpu_exec_end(env);
bellardb346ff42003-06-15 20:05:50 +0000571 switch(trapnr) {
572 case EXCP_UDEF:
bellardc6981052004-02-16 21:49:03 +0000573 {
574 TaskState *ts = env->opaque;
575 uint32_t opcode;
aurel326d9a42b2008-04-07 20:30:53 +0000576 int rc;
bellardc6981052004-02-16 21:49:03 +0000577
578 /* we handle the FPU emulation here, as Linux */
579 /* we get the opcode */
bellard2f619692007-11-16 10:46:05 +0000580 /* FIXME - what to do if get_user() fails? */
581 get_user_u32(opcode, env->regs[15]);
ths3b46e622007-09-17 08:09:54 +0000582
aurel326d9a42b2008-04-07 20:30:53 +0000583 rc = EmulateAll(opcode, &ts->fpa, env);
584 if (rc == 0) { /* illegal instruction */
bellardc6981052004-02-16 21:49:03 +0000585 info.si_signo = SIGILL;
586 info.si_errno = 0;
587 info.si_code = TARGET_ILL_ILLOPN;
588 info._sifields._sigfault._addr = env->regs[15];
pbrook624f7972008-05-31 16:11:38 +0000589 queue_signal(env, info.si_signo, &info);
aurel326d9a42b2008-04-07 20:30:53 +0000590 } else if (rc < 0) { /* FP exception */
591 int arm_fpe=0;
592
593 /* translate softfloat flags to FPSR flags */
594 if (-rc & float_flag_invalid)
595 arm_fpe |= BIT_IOC;
596 if (-rc & float_flag_divbyzero)
597 arm_fpe |= BIT_DZC;
598 if (-rc & float_flag_overflow)
599 arm_fpe |= BIT_OFC;
600 if (-rc & float_flag_underflow)
601 arm_fpe |= BIT_UFC;
602 if (-rc & float_flag_inexact)
603 arm_fpe |= BIT_IXC;
604
605 FPSR fpsr = ts->fpa.fpsr;
606 //printf("fpsr 0x%x, arm_fpe 0x%x\n",fpsr,arm_fpe);
607
608 if (fpsr & (arm_fpe << 16)) { /* exception enabled? */
609 info.si_signo = SIGFPE;
610 info.si_errno = 0;
611
612 /* ordered by priority, least first */
613 if (arm_fpe & BIT_IXC) info.si_code = TARGET_FPE_FLTRES;
614 if (arm_fpe & BIT_UFC) info.si_code = TARGET_FPE_FLTUND;
615 if (arm_fpe & BIT_OFC) info.si_code = TARGET_FPE_FLTOVF;
616 if (arm_fpe & BIT_DZC) info.si_code = TARGET_FPE_FLTDIV;
617 if (arm_fpe & BIT_IOC) info.si_code = TARGET_FPE_FLTINV;
618
619 info._sifields._sigfault._addr = env->regs[15];
pbrook624f7972008-05-31 16:11:38 +0000620 queue_signal(env, info.si_signo, &info);
aurel326d9a42b2008-04-07 20:30:53 +0000621 } else {
622 env->regs[15] += 4;
623 }
624
625 /* accumulate unenabled exceptions */
626 if ((!(fpsr & BIT_IXE)) && (arm_fpe & BIT_IXC))
627 fpsr |= BIT_IXC;
628 if ((!(fpsr & BIT_UFE)) && (arm_fpe & BIT_UFC))
629 fpsr |= BIT_UFC;
630 if ((!(fpsr & BIT_OFE)) && (arm_fpe & BIT_OFC))
631 fpsr |= BIT_OFC;
632 if ((!(fpsr & BIT_DZE)) && (arm_fpe & BIT_DZC))
633 fpsr |= BIT_DZC;
634 if ((!(fpsr & BIT_IOE)) && (arm_fpe & BIT_IOC))
635 fpsr |= BIT_IOC;
636 ts->fpa.fpsr=fpsr;
637 } else { /* everything OK */
bellardc6981052004-02-16 21:49:03 +0000638 /* increment PC */
639 env->regs[15] += 4;
640 }
641 }
bellardb346ff42003-06-15 20:05:50 +0000642 break;
643 case EXCP_SWI:
pbrook06c949e2006-02-04 19:35:26 +0000644 case EXCP_BKPT:
bellardb346ff42003-06-15 20:05:50 +0000645 {
pbrookce4defa2006-02-09 16:49:55 +0000646 env->eabi = 1;
bellardb346ff42003-06-15 20:05:50 +0000647 /* system call */
pbrook06c949e2006-02-04 19:35:26 +0000648 if (trapnr == EXCP_BKPT) {
649 if (env->thumb) {
bellard2f619692007-11-16 10:46:05 +0000650 /* FIXME - what to do if get_user() fails? */
651 get_user_u16(insn, env->regs[15]);
pbrook06c949e2006-02-04 19:35:26 +0000652 n = insn & 0xff;
653 env->regs[15] += 2;
654 } else {
bellard2f619692007-11-16 10:46:05 +0000655 /* FIXME - what to do if get_user() fails? */
656 get_user_u32(insn, env->regs[15]);
pbrook06c949e2006-02-04 19:35:26 +0000657 n = (insn & 0xf) | ((insn >> 4) & 0xff0);
658 env->regs[15] += 4;
659 }
bellard192c7bd2005-04-27 20:11:21 +0000660 } else {
pbrook06c949e2006-02-04 19:35:26 +0000661 if (env->thumb) {
bellard2f619692007-11-16 10:46:05 +0000662 /* FIXME - what to do if get_user() fails? */
663 get_user_u16(insn, env->regs[15] - 2);
pbrook06c949e2006-02-04 19:35:26 +0000664 n = insn & 0xff;
665 } else {
bellard2f619692007-11-16 10:46:05 +0000666 /* FIXME - what to do if get_user() fails? */
667 get_user_u32(insn, env->regs[15] - 4);
pbrook06c949e2006-02-04 19:35:26 +0000668 n = insn & 0xffffff;
669 }
bellard192c7bd2005-04-27 20:11:21 +0000670 }
671
bellard6f1f31c2004-04-25 18:00:45 +0000672 if (n == ARM_NR_cacheflush) {
673 arm_cache_flush(env->regs[0], env->regs[1]);
bellarda4f81972005-04-23 18:25:41 +0000674 } else if (n == ARM_NR_semihosting
675 || n == ARM_NR_thumb_semihosting) {
676 env->regs[0] = do_arm_semihosting (env);
pbrookce4defa2006-02-09 16:49:55 +0000677 } else if (n == 0 || n >= ARM_SYSCALL_BASE
bellard192c7bd2005-04-27 20:11:21 +0000678 || (env->thumb && n == ARM_THUMB_SYSCALL)) {
bellardb346ff42003-06-15 20:05:50 +0000679 /* linux syscall */
pbrookce4defa2006-02-09 16:49:55 +0000680 if (env->thumb || n == 0) {
bellard192c7bd2005-04-27 20:11:21 +0000681 n = env->regs[7];
682 } else {
683 n -= ARM_SYSCALL_BASE;
pbrookce4defa2006-02-09 16:49:55 +0000684 env->eabi = 0;
bellard192c7bd2005-04-27 20:11:21 +0000685 }
pbrookfbb4a2e2008-05-29 00:20:44 +0000686 if ( n > ARM_NR_BASE) {
687 switch (n) {
688 case ARM_NR_cacheflush:
689 arm_cache_flush(env->regs[0], env->regs[1]);
690 break;
691 case ARM_NR_set_tls:
692 cpu_set_tls(env, env->regs[0]);
693 env->regs[0] = 0;
694 break;
695 default:
696 gemu_log("qemu: Unsupported ARM syscall: 0x%x\n",
697 n);
698 env->regs[0] = -TARGET_ENOSYS;
699 break;
700 }
701 } else {
702 env->regs[0] = do_syscall(env,
703 n,
704 env->regs[0],
705 env->regs[1],
706 env->regs[2],
707 env->regs[3],
708 env->regs[4],
709 env->regs[5]);
710 }
bellardb346ff42003-06-15 20:05:50 +0000711 } else {
712 goto error;
713 }
714 }
715 break;
bellard43fff232003-07-09 19:31:39 +0000716 case EXCP_INTERRUPT:
717 /* just indicate that signals should be handled asap */
718 break;
bellard68016c62005-02-07 23:12:27 +0000719 case EXCP_PREFETCH_ABORT:
balrogeae473c2008-07-29 14:09:57 +0000720 addr = env->cp15.c6_insn;
bellardb5ff1b32005-11-26 10:38:39 +0000721 goto do_segv;
bellard68016c62005-02-07 23:12:27 +0000722 case EXCP_DATA_ABORT:
balrogeae473c2008-07-29 14:09:57 +0000723 addr = env->cp15.c6_data;
bellardb5ff1b32005-11-26 10:38:39 +0000724 goto do_segv;
725 do_segv:
bellard68016c62005-02-07 23:12:27 +0000726 {
727 info.si_signo = SIGSEGV;
728 info.si_errno = 0;
729 /* XXX: check env->error_code */
730 info.si_code = TARGET_SEGV_MAPERR;
bellardb5ff1b32005-11-26 10:38:39 +0000731 info._sifields._sigfault._addr = addr;
pbrook624f7972008-05-31 16:11:38 +0000732 queue_signal(env, info.si_signo, &info);
bellard68016c62005-02-07 23:12:27 +0000733 }
734 break;
bellard1fddef42005-04-17 19:16:13 +0000735 case EXCP_DEBUG:
736 {
737 int sig;
738
739 sig = gdb_handlesig (env, TARGET_SIGTRAP);
740 if (sig)
741 {
742 info.si_signo = sig;
743 info.si_errno = 0;
744 info.si_code = TARGET_TRAP_BRKPT;
pbrook624f7972008-05-31 16:11:38 +0000745 queue_signal(env, info.si_signo, &info);
bellard1fddef42005-04-17 19:16:13 +0000746 }
747 }
748 break;
pbrookfbb4a2e2008-05-29 00:20:44 +0000749 case EXCP_KERNEL_TRAP:
750 if (do_kernel_trap(env))
751 goto error;
752 break;
bellardb346ff42003-06-15 20:05:50 +0000753 default:
754 error:
ths5fafdf22007-09-16 21:08:06 +0000755 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
bellardb346ff42003-06-15 20:05:50 +0000756 trapnr);
bellard7fe48482004-10-09 18:08:01 +0000757 cpu_dump_state(env, stderr, fprintf, 0);
bellardb346ff42003-06-15 20:05:50 +0000758 abort();
759 }
760 process_pending_signals(env);
761 }
762}
763
764#endif
bellard1b6b0292003-03-22 17:31:38 +0000765
bellard93ac68b2003-09-30 20:57:29 +0000766#ifdef TARGET_SPARC
blueswir1ed23fbd2008-08-30 09:20:21 +0000767#define SPARC64_STACK_BIAS 2047
bellard93ac68b2003-09-30 20:57:29 +0000768
bellard060366c2004-01-04 15:50:01 +0000769//#define DEBUG_WIN
770
bellard2623cba2005-02-19 17:25:31 +0000771/* WARNING: dealing with register windows _is_ complicated. More info
772 can be found at http://www.sics.se/~psm/sparcstack.html */
bellard060366c2004-01-04 15:50:01 +0000773static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
774{
blueswir11a140262008-06-07 08:07:37 +0000775 index = (index + cwp * 16) % (16 * env->nwindows);
bellard060366c2004-01-04 15:50:01 +0000776 /* wrap handling : if cwp is on the last window, then we use the
777 registers 'after' the end */
blueswir11a140262008-06-07 08:07:37 +0000778 if (index < 8 && env->cwp == env->nwindows - 1)
779 index += 16 * env->nwindows;
bellard060366c2004-01-04 15:50:01 +0000780 return index;
781}
782
bellard2623cba2005-02-19 17:25:31 +0000783/* save the register window 'cwp1' */
784static inline void save_window_offset(CPUSPARCState *env, int cwp1)
bellard060366c2004-01-04 15:50:01 +0000785{
bellard2623cba2005-02-19 17:25:31 +0000786 unsigned int i;
blueswir1992f48a2007-10-14 16:27:31 +0000787 abi_ulong sp_ptr;
ths3b46e622007-09-17 08:09:54 +0000788
pbrook53a59602006-03-25 19:31:22 +0000789 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
blueswir1ed23fbd2008-08-30 09:20:21 +0000790#ifdef TARGET_SPARC64
791 if (sp_ptr & 3)
792 sp_ptr += SPARC64_STACK_BIAS;
793#endif
bellard060366c2004-01-04 15:50:01 +0000794#if defined(DEBUG_WIN)
blueswir12daf0282008-06-15 18:02:48 +0000795 printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n",
796 sp_ptr, cwp1);
bellard060366c2004-01-04 15:50:01 +0000797#endif
bellard2623cba2005-02-19 17:25:31 +0000798 for(i = 0; i < 16; i++) {
bellard2f619692007-11-16 10:46:05 +0000799 /* FIXME - what to do if put_user() fails? */
800 put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
blueswir1992f48a2007-10-14 16:27:31 +0000801 sp_ptr += sizeof(abi_ulong);
bellard2623cba2005-02-19 17:25:31 +0000802 }
bellard060366c2004-01-04 15:50:01 +0000803}
804
805static void save_window(CPUSPARCState *env)
806{
bellard5ef54112006-07-18 21:14:09 +0000807#ifndef TARGET_SPARC64
bellard2623cba2005-02-19 17:25:31 +0000808 unsigned int new_wim;
blueswir11a140262008-06-07 08:07:37 +0000809 new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) &
810 ((1LL << env->nwindows) - 1);
811 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
bellard2623cba2005-02-19 17:25:31 +0000812 env->wim = new_wim;
bellard5ef54112006-07-18 21:14:09 +0000813#else
blueswir11a140262008-06-07 08:07:37 +0000814 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
bellard5ef54112006-07-18 21:14:09 +0000815 env->cansave++;
816 env->canrestore--;
817#endif
bellard060366c2004-01-04 15:50:01 +0000818}
819
820static void restore_window(CPUSPARCState *env)
821{
blueswir1eda52952008-08-27 19:19:44 +0000822#ifndef TARGET_SPARC64
823 unsigned int new_wim;
824#endif
825 unsigned int i, cwp1;
blueswir1992f48a2007-10-14 16:27:31 +0000826 abi_ulong sp_ptr;
ths3b46e622007-09-17 08:09:54 +0000827
blueswir1eda52952008-08-27 19:19:44 +0000828#ifndef TARGET_SPARC64
blueswir11a140262008-06-07 08:07:37 +0000829 new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) &
830 ((1LL << env->nwindows) - 1);
blueswir1eda52952008-08-27 19:19:44 +0000831#endif
ths3b46e622007-09-17 08:09:54 +0000832
bellard060366c2004-01-04 15:50:01 +0000833 /* restore the invalid window */
blueswir11a140262008-06-07 08:07:37 +0000834 cwp1 = cpu_cwp_inc(env, env->cwp + 1);
pbrook53a59602006-03-25 19:31:22 +0000835 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
blueswir1ed23fbd2008-08-30 09:20:21 +0000836#ifdef TARGET_SPARC64
837 if (sp_ptr & 3)
838 sp_ptr += SPARC64_STACK_BIAS;
839#endif
bellard060366c2004-01-04 15:50:01 +0000840#if defined(DEBUG_WIN)
blueswir12daf0282008-06-15 18:02:48 +0000841 printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n",
842 sp_ptr, cwp1);
bellard060366c2004-01-04 15:50:01 +0000843#endif
bellard2623cba2005-02-19 17:25:31 +0000844 for(i = 0; i < 16; i++) {
bellard2f619692007-11-16 10:46:05 +0000845 /* FIXME - what to do if get_user() fails? */
846 get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
blueswir1992f48a2007-10-14 16:27:31 +0000847 sp_ptr += sizeof(abi_ulong);
bellard2623cba2005-02-19 17:25:31 +0000848 }
bellard5ef54112006-07-18 21:14:09 +0000849#ifdef TARGET_SPARC64
850 env->canrestore++;
blueswir11a140262008-06-07 08:07:37 +0000851 if (env->cleanwin < env->nwindows - 1)
852 env->cleanwin++;
bellard5ef54112006-07-18 21:14:09 +0000853 env->cansave--;
blueswir1eda52952008-08-27 19:19:44 +0000854#else
855 env->wim = new_wim;
bellard5ef54112006-07-18 21:14:09 +0000856#endif
bellard060366c2004-01-04 15:50:01 +0000857}
858
859static void flush_windows(CPUSPARCState *env)
860{
861 int offset, cwp1;
bellard2623cba2005-02-19 17:25:31 +0000862
863 offset = 1;
bellard060366c2004-01-04 15:50:01 +0000864 for(;;) {
865 /* if restore would invoke restore_window(), then we can stop */
blueswir11a140262008-06-07 08:07:37 +0000866 cwp1 = cpu_cwp_inc(env, env->cwp + offset);
blueswir1eda52952008-08-27 19:19:44 +0000867#ifndef TARGET_SPARC64
bellard060366c2004-01-04 15:50:01 +0000868 if (env->wim & (1 << cwp1))
869 break;
blueswir1eda52952008-08-27 19:19:44 +0000870#else
871 if (env->canrestore == 0)
872 break;
873 env->cansave++;
874 env->canrestore--;
875#endif
bellard2623cba2005-02-19 17:25:31 +0000876 save_window_offset(env, cwp1);
bellard060366c2004-01-04 15:50:01 +0000877 offset++;
878 }
blueswir11a140262008-06-07 08:07:37 +0000879 cwp1 = cpu_cwp_inc(env, env->cwp + 1);
blueswir1eda52952008-08-27 19:19:44 +0000880#ifndef TARGET_SPARC64
881 /* set wim so that restore will reload the registers */
bellard2623cba2005-02-19 17:25:31 +0000882 env->wim = 1 << cwp1;
blueswir1eda52952008-08-27 19:19:44 +0000883#endif
bellard2623cba2005-02-19 17:25:31 +0000884#if defined(DEBUG_WIN)
885 printf("flush_windows: nb=%d\n", offset - 1);
bellard80a9d032005-01-03 23:31:27 +0000886#endif
bellard2623cba2005-02-19 17:25:31 +0000887}
bellard060366c2004-01-04 15:50:01 +0000888
bellard93ac68b2003-09-30 20:57:29 +0000889void cpu_loop (CPUSPARCState *env)
890{
bellard060366c2004-01-04 15:50:01 +0000891 int trapnr, ret;
bellard61ff6f52005-02-15 22:54:53 +0000892 target_siginfo_t info;
ths3b46e622007-09-17 08:09:54 +0000893
bellard060366c2004-01-04 15:50:01 +0000894 while (1) {
895 trapnr = cpu_sparc_exec (env);
ths3b46e622007-09-17 08:09:54 +0000896
bellard060366c2004-01-04 15:50:01 +0000897 switch (trapnr) {
bellard5ef54112006-07-18 21:14:09 +0000898#ifndef TARGET_SPARC64
ths5fafdf22007-09-16 21:08:06 +0000899 case 0x88:
bellard060366c2004-01-04 15:50:01 +0000900 case 0x90:
bellard5ef54112006-07-18 21:14:09 +0000901#else
blueswir1cb33da52007-10-09 16:34:29 +0000902 case 0x110:
bellard5ef54112006-07-18 21:14:09 +0000903 case 0x16d:
904#endif
bellard060366c2004-01-04 15:50:01 +0000905 ret = do_syscall (env, env->gregs[1],
ths5fafdf22007-09-16 21:08:06 +0000906 env->regwptr[0], env->regwptr[1],
907 env->regwptr[2], env->regwptr[3],
bellard060366c2004-01-04 15:50:01 +0000908 env->regwptr[4], env->regwptr[5]);
909 if ((unsigned int)ret >= (unsigned int)(-515)) {
blueswir1992f48a2007-10-14 16:27:31 +0000910#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
bellard27908722006-10-23 21:31:01 +0000911 env->xcc |= PSR_CARRY;
912#else
bellard060366c2004-01-04 15:50:01 +0000913 env->psr |= PSR_CARRY;
bellard27908722006-10-23 21:31:01 +0000914#endif
bellard060366c2004-01-04 15:50:01 +0000915 ret = -ret;
916 } else {
blueswir1992f48a2007-10-14 16:27:31 +0000917#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
bellard27908722006-10-23 21:31:01 +0000918 env->xcc &= ~PSR_CARRY;
919#else
bellard060366c2004-01-04 15:50:01 +0000920 env->psr &= ~PSR_CARRY;
bellard27908722006-10-23 21:31:01 +0000921#endif
bellard060366c2004-01-04 15:50:01 +0000922 }
923 env->regwptr[0] = ret;
924 /* next instruction */
925 env->pc = env->npc;
926 env->npc = env->npc + 4;
927 break;
928 case 0x83: /* flush windows */
blueswir1992f48a2007-10-14 16:27:31 +0000929#ifdef TARGET_ABI32
930 case 0x103:
931#endif
bellard2623cba2005-02-19 17:25:31 +0000932 flush_windows(env);
bellard060366c2004-01-04 15:50:01 +0000933 /* next instruction */
934 env->pc = env->npc;
935 env->npc = env->npc + 4;
936 break;
bellard34751872005-07-02 14:31:34 +0000937#ifndef TARGET_SPARC64
bellard060366c2004-01-04 15:50:01 +0000938 case TT_WIN_OVF: /* window overflow */
939 save_window(env);
940 break;
941 case TT_WIN_UNF: /* window underflow */
942 restore_window(env);
943 break;
bellard61ff6f52005-02-15 22:54:53 +0000944 case TT_TFAULT:
945 case TT_DFAULT:
946 {
947 info.si_signo = SIGSEGV;
948 info.si_errno = 0;
949 /* XXX: check env->error_code */
950 info.si_code = TARGET_SEGV_MAPERR;
951 info._sifields._sigfault._addr = env->mmuregs[4];
pbrook624f7972008-05-31 16:11:38 +0000952 queue_signal(env, info.si_signo, &info);
bellard61ff6f52005-02-15 22:54:53 +0000953 }
954 break;
bellard34751872005-07-02 14:31:34 +0000955#else
bellard5ef54112006-07-18 21:14:09 +0000956 case TT_SPILL: /* window overflow */
957 save_window(env);
958 break;
959 case TT_FILL: /* window underflow */
960 restore_window(env);
961 break;
blueswir17f84a722007-07-07 20:46:41 +0000962 case TT_TFAULT:
963 case TT_DFAULT:
964 {
965 info.si_signo = SIGSEGV;
966 info.si_errno = 0;
967 /* XXX: check env->error_code */
968 info.si_code = TARGET_SEGV_MAPERR;
969 if (trapnr == TT_DFAULT)
970 info._sifields._sigfault._addr = env->dmmuregs[4];
971 else
blueswir1375ee382008-03-05 17:59:48 +0000972 info._sifields._sigfault._addr = env->tsptr->tpc;
pbrook624f7972008-05-31 16:11:38 +0000973 queue_signal(env, info.si_signo, &info);
blueswir17f84a722007-07-07 20:46:41 +0000974 }
975 break;
bellard27524dc2007-11-11 19:32:52 +0000976#ifndef TARGET_ABI32
blueswir15bfb56b2007-10-05 17:01:51 +0000977 case 0x16e:
978 flush_windows(env);
979 sparc64_get_context(env);
980 break;
981 case 0x16f:
982 flush_windows(env);
983 sparc64_set_context(env);
984 break;
bellard34751872005-07-02 14:31:34 +0000985#endif
bellard27524dc2007-11-11 19:32:52 +0000986#endif
bellard48dc41e2006-06-21 18:15:50 +0000987 case EXCP_INTERRUPT:
988 /* just indicate that signals should be handled asap */
989 break;
bellard1fddef42005-04-17 19:16:13 +0000990 case EXCP_DEBUG:
991 {
992 int sig;
993
994 sig = gdb_handlesig (env, TARGET_SIGTRAP);
995 if (sig)
996 {
997 info.si_signo = sig;
998 info.si_errno = 0;
999 info.si_code = TARGET_TRAP_BRKPT;
pbrook624f7972008-05-31 16:11:38 +00001000 queue_signal(env, info.si_signo, &info);
bellard1fddef42005-04-17 19:16:13 +00001001 }
1002 }
1003 break;
bellard060366c2004-01-04 15:50:01 +00001004 default:
1005 printf ("Unhandled trap: 0x%x\n", trapnr);
bellard7fe48482004-10-09 18:08:01 +00001006 cpu_dump_state(env, stderr, fprintf, 0);
bellard060366c2004-01-04 15:50:01 +00001007 exit (1);
1008 }
1009 process_pending_signals (env);
1010 }
bellard93ac68b2003-09-30 20:57:29 +00001011}
1012
1013#endif
1014
bellard67867302003-11-23 17:05:30 +00001015#ifdef TARGET_PPC
bellard9fddaa02004-05-21 12:59:32 +00001016static inline uint64_t cpu_ppc_get_tb (CPUState *env)
1017{
1018 /* TO FIX */
1019 return 0;
1020}
ths3b46e622007-09-17 08:09:54 +00001021
bellard9fddaa02004-05-21 12:59:32 +00001022uint32_t cpu_ppc_load_tbl (CPUState *env)
1023{
1024 return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
1025}
ths3b46e622007-09-17 08:09:54 +00001026
bellard9fddaa02004-05-21 12:59:32 +00001027uint32_t cpu_ppc_load_tbu (CPUState *env)
1028{
1029 return cpu_ppc_get_tb(env) >> 32;
1030}
ths3b46e622007-09-17 08:09:54 +00001031
j_mayera062e362007-09-30 00:38:38 +00001032uint32_t cpu_ppc_load_atbl (CPUState *env)
bellard9fddaa02004-05-21 12:59:32 +00001033{
j_mayera062e362007-09-30 00:38:38 +00001034 return cpu_ppc_get_tb(env) & 0xFFFFFFFF;
bellard9fddaa02004-05-21 12:59:32 +00001035}
1036
j_mayera062e362007-09-30 00:38:38 +00001037uint32_t cpu_ppc_load_atbu (CPUState *env)
bellard9fddaa02004-05-21 12:59:32 +00001038{
j_mayera062e362007-09-30 00:38:38 +00001039 return cpu_ppc_get_tb(env) >> 32;
bellard9fddaa02004-05-21 12:59:32 +00001040}
ths5fafdf22007-09-16 21:08:06 +00001041
j_mayer76a66252007-03-07 08:32:30 +00001042uint32_t cpu_ppc601_load_rtcu (CPUState *env)
1043__attribute__ (( alias ("cpu_ppc_load_tbu") ));
1044
j_mayer76a66252007-03-07 08:32:30 +00001045uint32_t cpu_ppc601_load_rtcl (CPUState *env)
bellard9fddaa02004-05-21 12:59:32 +00001046{
j_mayer76a66252007-03-07 08:32:30 +00001047 return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
bellard9fddaa02004-05-21 12:59:32 +00001048}
j_mayer76a66252007-03-07 08:32:30 +00001049
j_mayera750fc02007-09-26 23:54:22 +00001050/* XXX: to be fixed */
1051int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, target_ulong *valp)
1052{
1053 return -1;
1054}
1055
1056int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, target_ulong val)
1057{
1058 return -1;
1059}
1060
j_mayere1833e12007-09-29 13:06:16 +00001061#define EXCP_DUMP(env, fmt, args...) \
1062do { \
1063 fprintf(stderr, fmt , ##args); \
1064 cpu_dump_state(env, stderr, fprintf, 0); \
aliguori93fcfe32009-01-15 22:34:14 +00001065 qemu_log(fmt, ##args); \
1066 log_cpu_state(env, 0); \
j_mayere1833e12007-09-29 13:06:16 +00001067} while (0)
1068
bellard67867302003-11-23 17:05:30 +00001069void cpu_loop(CPUPPCState *env)
1070{
bellard67867302003-11-23 17:05:30 +00001071 target_siginfo_t info;
bellard61190b12004-01-04 23:54:31 +00001072 int trapnr;
1073 uint32_t ret;
ths3b46e622007-09-17 08:09:54 +00001074
bellard67867302003-11-23 17:05:30 +00001075 for(;;) {
1076 trapnr = cpu_ppc_exec(env);
1077 switch(trapnr) {
j_mayere1833e12007-09-29 13:06:16 +00001078 case POWERPC_EXCP_NONE:
1079 /* Just go on */
bellard67867302003-11-23 17:05:30 +00001080 break;
j_mayere1833e12007-09-29 13:06:16 +00001081 case POWERPC_EXCP_CRITICAL: /* Critical input */
1082 cpu_abort(env, "Critical interrupt while in user mode. "
1083 "Aborting\n");
1084 break;
1085 case POWERPC_EXCP_MCHECK: /* Machine check exception */
1086 cpu_abort(env, "Machine check exception while in user mode. "
1087 "Aborting\n");
1088 break;
1089 case POWERPC_EXCP_DSI: /* Data storage exception */
1090 EXCP_DUMP(env, "Invalid data memory access: 0x" ADDRX "\n",
1091 env->spr[SPR_DAR]);
1092 /* XXX: check this. Seems bugged */
1093 switch (env->error_code & 0xFF000000) {
1094 case 0x40000000:
1095 info.si_signo = TARGET_SIGSEGV;
1096 info.si_errno = 0;
1097 info.si_code = TARGET_SEGV_MAPERR;
1098 break;
1099 case 0x04000000:
1100 info.si_signo = TARGET_SIGILL;
1101 info.si_errno = 0;
1102 info.si_code = TARGET_ILL_ILLADR;
1103 break;
1104 case 0x08000000:
1105 info.si_signo = TARGET_SIGSEGV;
1106 info.si_errno = 0;
1107 info.si_code = TARGET_SEGV_ACCERR;
1108 break;
1109 default:
1110 /* Let's send a regular segfault... */
1111 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1112 env->error_code);
1113 info.si_signo = TARGET_SIGSEGV;
1114 info.si_errno = 0;
1115 info.si_code = TARGET_SEGV_MAPERR;
1116 break;
1117 }
1118 info._sifields._sigfault._addr = env->nip;
pbrook624f7972008-05-31 16:11:38 +00001119 queue_signal(env, info.si_signo, &info);
j_mayere1833e12007-09-29 13:06:16 +00001120 break;
1121 case POWERPC_EXCP_ISI: /* Instruction storage exception */
1122 EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" ADDRX "\n",
j_mayerf10c3152007-11-03 13:22:08 +00001123 env->spr[SPR_SRR0]);
j_mayere1833e12007-09-29 13:06:16 +00001124 /* XXX: check this */
1125 switch (env->error_code & 0xFF000000) {
1126 case 0x40000000:
1127 info.si_signo = TARGET_SIGSEGV;
1128 info.si_errno = 0;
1129 info.si_code = TARGET_SEGV_MAPERR;
1130 break;
1131 case 0x10000000:
1132 case 0x08000000:
1133 info.si_signo = TARGET_SIGSEGV;
1134 info.si_errno = 0;
1135 info.si_code = TARGET_SEGV_ACCERR;
1136 break;
1137 default:
1138 /* Let's send a regular segfault... */
1139 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1140 env->error_code);
1141 info.si_signo = TARGET_SIGSEGV;
1142 info.si_errno = 0;
1143 info.si_code = TARGET_SEGV_MAPERR;
1144 break;
1145 }
1146 info._sifields._sigfault._addr = env->nip - 4;
pbrook624f7972008-05-31 16:11:38 +00001147 queue_signal(env, info.si_signo, &info);
j_mayere1833e12007-09-29 13:06:16 +00001148 break;
1149 case POWERPC_EXCP_EXTERNAL: /* External input */
1150 cpu_abort(env, "External interrupt while in user mode. "
1151 "Aborting\n");
1152 break;
1153 case POWERPC_EXCP_ALIGN: /* Alignment exception */
1154 EXCP_DUMP(env, "Unaligned memory access\n");
1155 /* XXX: check this */
1156 info.si_signo = TARGET_SIGBUS;
1157 info.si_errno = 0;
1158 info.si_code = TARGET_BUS_ADRALN;
1159 info._sifields._sigfault._addr = env->nip - 4;
pbrook624f7972008-05-31 16:11:38 +00001160 queue_signal(env, info.si_signo, &info);
j_mayere1833e12007-09-29 13:06:16 +00001161 break;
1162 case POWERPC_EXCP_PROGRAM: /* Program exception */
1163 /* XXX: check this */
1164 switch (env->error_code & ~0xF) {
1165 case POWERPC_EXCP_FP:
1166 EXCP_DUMP(env, "Floating point program exception\n");
j_mayere1833e12007-09-29 13:06:16 +00001167 info.si_signo = TARGET_SIGFPE;
1168 info.si_errno = 0;
1169 switch (env->error_code & 0xF) {
1170 case POWERPC_EXCP_FP_OX:
1171 info.si_code = TARGET_FPE_FLTOVF;
1172 break;
1173 case POWERPC_EXCP_FP_UX:
1174 info.si_code = TARGET_FPE_FLTUND;
1175 break;
1176 case POWERPC_EXCP_FP_ZX:
1177 case POWERPC_EXCP_FP_VXZDZ:
1178 info.si_code = TARGET_FPE_FLTDIV;
1179 break;
1180 case POWERPC_EXCP_FP_XX:
1181 info.si_code = TARGET_FPE_FLTRES;
1182 break;
1183 case POWERPC_EXCP_FP_VXSOFT:
1184 info.si_code = TARGET_FPE_FLTINV;
1185 break;
j_mayer7c580442007-10-27 17:54:30 +00001186 case POWERPC_EXCP_FP_VXSNAN:
j_mayere1833e12007-09-29 13:06:16 +00001187 case POWERPC_EXCP_FP_VXISI:
1188 case POWERPC_EXCP_FP_VXIDI:
1189 case POWERPC_EXCP_FP_VXIMZ:
1190 case POWERPC_EXCP_FP_VXVC:
1191 case POWERPC_EXCP_FP_VXSQRT:
1192 case POWERPC_EXCP_FP_VXCVI:
1193 info.si_code = TARGET_FPE_FLTSUB;
1194 break;
1195 default:
1196 EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
1197 env->error_code);
1198 break;
1199 }
1200 break;
1201 case POWERPC_EXCP_INVAL:
1202 EXCP_DUMP(env, "Invalid instruction\n");
1203 info.si_signo = TARGET_SIGILL;
1204 info.si_errno = 0;
1205 switch (env->error_code & 0xF) {
1206 case POWERPC_EXCP_INVAL_INVAL:
1207 info.si_code = TARGET_ILL_ILLOPC;
1208 break;
1209 case POWERPC_EXCP_INVAL_LSWX:
1210 info.si_code = TARGET_ILL_ILLOPN;
1211 break;
1212 case POWERPC_EXCP_INVAL_SPR:
1213 info.si_code = TARGET_ILL_PRVREG;
1214 break;
1215 case POWERPC_EXCP_INVAL_FP:
1216 info.si_code = TARGET_ILL_COPROC;
1217 break;
1218 default:
1219 EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
1220 env->error_code & 0xF);
1221 info.si_code = TARGET_ILL_ILLADR;
1222 break;
1223 }
1224 break;
1225 case POWERPC_EXCP_PRIV:
1226 EXCP_DUMP(env, "Privilege violation\n");
1227 info.si_signo = TARGET_SIGILL;
1228 info.si_errno = 0;
1229 switch (env->error_code & 0xF) {
1230 case POWERPC_EXCP_PRIV_OPC:
1231 info.si_code = TARGET_ILL_PRVOPC;
1232 break;
1233 case POWERPC_EXCP_PRIV_REG:
1234 info.si_code = TARGET_ILL_PRVREG;
1235 break;
1236 default:
1237 EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
1238 env->error_code & 0xF);
1239 info.si_code = TARGET_ILL_PRVOPC;
1240 break;
1241 }
1242 break;
1243 case POWERPC_EXCP_TRAP:
1244 cpu_abort(env, "Tried to call a TRAP\n");
1245 break;
1246 default:
1247 /* Should not happen ! */
1248 cpu_abort(env, "Unknown program exception (%02x)\n",
1249 env->error_code);
1250 break;
1251 }
1252 info._sifields._sigfault._addr = env->nip - 4;
pbrook624f7972008-05-31 16:11:38 +00001253 queue_signal(env, info.si_signo, &info);
j_mayere1833e12007-09-29 13:06:16 +00001254 break;
1255 case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
1256 EXCP_DUMP(env, "No floating point allowed\n");
1257 info.si_signo = TARGET_SIGILL;
1258 info.si_errno = 0;
1259 info.si_code = TARGET_ILL_COPROC;
1260 info._sifields._sigfault._addr = env->nip - 4;
pbrook624f7972008-05-31 16:11:38 +00001261 queue_signal(env, info.si_signo, &info);
j_mayere1833e12007-09-29 13:06:16 +00001262 break;
1263 case POWERPC_EXCP_SYSCALL: /* System call exception */
1264 cpu_abort(env, "Syscall exception while in user mode. "
1265 "Aborting\n");
1266 break;
1267 case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
1268 EXCP_DUMP(env, "No APU instruction allowed\n");
1269 info.si_signo = TARGET_SIGILL;
1270 info.si_errno = 0;
1271 info.si_code = TARGET_ILL_COPROC;
1272 info._sifields._sigfault._addr = env->nip - 4;
pbrook624f7972008-05-31 16:11:38 +00001273 queue_signal(env, info.si_signo, &info);
j_mayere1833e12007-09-29 13:06:16 +00001274 break;
1275 case POWERPC_EXCP_DECR: /* Decrementer exception */
1276 cpu_abort(env, "Decrementer interrupt while in user mode. "
1277 "Aborting\n");
1278 break;
1279 case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
1280 cpu_abort(env, "Fix interval timer interrupt while in user mode. "
1281 "Aborting\n");
1282 break;
1283 case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
1284 cpu_abort(env, "Watchdog timer interrupt while in user mode. "
1285 "Aborting\n");
1286 break;
1287 case POWERPC_EXCP_DTLB: /* Data TLB error */
1288 cpu_abort(env, "Data TLB exception while in user mode. "
1289 "Aborting\n");
1290 break;
1291 case POWERPC_EXCP_ITLB: /* Instruction TLB error */
1292 cpu_abort(env, "Instruction TLB exception while in user mode. "
1293 "Aborting\n");
1294 break;
j_mayere1833e12007-09-29 13:06:16 +00001295 case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */
1296 EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
1297 info.si_signo = TARGET_SIGILL;
1298 info.si_errno = 0;
1299 info.si_code = TARGET_ILL_COPROC;
1300 info._sifields._sigfault._addr = env->nip - 4;
pbrook624f7972008-05-31 16:11:38 +00001301 queue_signal(env, info.si_signo, &info);
j_mayere1833e12007-09-29 13:06:16 +00001302 break;
1303 case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */
1304 cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
1305 break;
1306 case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */
1307 cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
1308 break;
1309 case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */
1310 cpu_abort(env, "Performance monitor exception not handled\n");
1311 break;
1312 case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
1313 cpu_abort(env, "Doorbell interrupt while in user mode. "
1314 "Aborting\n");
1315 break;
1316 case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
1317 cpu_abort(env, "Doorbell critical interrupt while in user mode. "
1318 "Aborting\n");
1319 break;
1320 case POWERPC_EXCP_RESET: /* System reset exception */
1321 cpu_abort(env, "Reset interrupt while in user mode. "
1322 "Aborting\n");
1323 break;
j_mayere1833e12007-09-29 13:06:16 +00001324 case POWERPC_EXCP_DSEG: /* Data segment exception */
1325 cpu_abort(env, "Data segment exception while in user mode. "
1326 "Aborting\n");
1327 break;
1328 case POWERPC_EXCP_ISEG: /* Instruction segment exception */
1329 cpu_abort(env, "Instruction segment exception "
1330 "while in user mode. Aborting\n");
1331 break;
j_mayere85e7c62007-10-18 19:59:49 +00001332 /* PowerPC 64 with hypervisor mode support */
j_mayere1833e12007-09-29 13:06:16 +00001333 case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
1334 cpu_abort(env, "Hypervisor decrementer interrupt "
1335 "while in user mode. Aborting\n");
1336 break;
j_mayere1833e12007-09-29 13:06:16 +00001337 case POWERPC_EXCP_TRACE: /* Trace exception */
1338 /* Nothing to do:
1339 * we use this exception to emulate step-by-step execution mode.
1340 */
1341 break;
j_mayere85e7c62007-10-18 19:59:49 +00001342 /* PowerPC 64 with hypervisor mode support */
j_mayere1833e12007-09-29 13:06:16 +00001343 case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
1344 cpu_abort(env, "Hypervisor data storage exception "
1345 "while in user mode. Aborting\n");
1346 break;
1347 case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */
1348 cpu_abort(env, "Hypervisor instruction storage exception "
1349 "while in user mode. Aborting\n");
1350 break;
1351 case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
1352 cpu_abort(env, "Hypervisor data segment exception "
1353 "while in user mode. Aborting\n");
1354 break;
1355 case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */
1356 cpu_abort(env, "Hypervisor instruction segment exception "
1357 "while in user mode. Aborting\n");
1358 break;
j_mayere1833e12007-09-29 13:06:16 +00001359 case POWERPC_EXCP_VPU: /* Vector unavailable exception */
1360 EXCP_DUMP(env, "No Altivec instructions allowed\n");
1361 info.si_signo = TARGET_SIGILL;
1362 info.si_errno = 0;
1363 info.si_code = TARGET_ILL_COPROC;
1364 info._sifields._sigfault._addr = env->nip - 4;
pbrook624f7972008-05-31 16:11:38 +00001365 queue_signal(env, info.si_signo, &info);
j_mayere1833e12007-09-29 13:06:16 +00001366 break;
1367 case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */
1368 cpu_abort(env, "Programable interval timer interrupt "
1369 "while in user mode. Aborting\n");
1370 break;
1371 case POWERPC_EXCP_IO: /* IO error exception */
1372 cpu_abort(env, "IO error exception while in user mode. "
1373 "Aborting\n");
1374 break;
1375 case POWERPC_EXCP_RUNM: /* Run mode exception */
1376 cpu_abort(env, "Run mode exception while in user mode. "
1377 "Aborting\n");
1378 break;
1379 case POWERPC_EXCP_EMUL: /* Emulation trap exception */
1380 cpu_abort(env, "Emulation trap exception not handled\n");
1381 break;
1382 case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
1383 cpu_abort(env, "Instruction fetch TLB exception "
1384 "while in user-mode. Aborting");
1385 break;
1386 case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
1387 cpu_abort(env, "Data load TLB exception while in user-mode. "
1388 "Aborting");
1389 break;
1390 case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
1391 cpu_abort(env, "Data store TLB exception while in user-mode. "
1392 "Aborting");
1393 break;
1394 case POWERPC_EXCP_FPA: /* Floating-point assist exception */
1395 cpu_abort(env, "Floating-point assist exception not handled\n");
1396 break;
1397 case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
1398 cpu_abort(env, "Instruction address breakpoint exception "
1399 "not handled\n");
1400 break;
1401 case POWERPC_EXCP_SMI: /* System management interrupt */
1402 cpu_abort(env, "System management interrupt while in user mode. "
1403 "Aborting\n");
1404 break;
1405 case POWERPC_EXCP_THERM: /* Thermal interrupt */
1406 cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
1407 "Aborting\n");
1408 break;
1409 case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */
1410 cpu_abort(env, "Performance monitor exception not handled\n");
1411 break;
1412 case POWERPC_EXCP_VPUA: /* Vector assist exception */
1413 cpu_abort(env, "Vector assist exception not handled\n");
1414 break;
1415 case POWERPC_EXCP_SOFTP: /* Soft patch exception */
1416 cpu_abort(env, "Soft patch exception not handled\n");
1417 break;
1418 case POWERPC_EXCP_MAINT: /* Maintenance exception */
1419 cpu_abort(env, "Maintenance exception while in user mode. "
1420 "Aborting\n");
1421 break;
1422 case POWERPC_EXCP_STOP: /* stop translation */
1423 /* We did invalidate the instruction cache. Go on */
1424 break;
1425 case POWERPC_EXCP_BRANCH: /* branch instruction: */
1426 /* We just stopped because of a branch. Go on */
1427 break;
1428 case POWERPC_EXCP_SYSCALL_USER:
1429 /* system call in user-mode emulation */
bellard67867302003-11-23 17:05:30 +00001430 /* WARNING:
1431 * PPC ABI uses overflow flag in cr0 to signal an error
1432 * in syscalls.
1433 */
bellard61190b12004-01-04 23:54:31 +00001434#if 0
1435 printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
1436 env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
1437#endif
bellard67867302003-11-23 17:05:30 +00001438 env->crf[0] &= ~0x1;
1439 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
1440 env->gpr[5], env->gpr[6], env->gpr[7],
1441 env->gpr[8]);
1442 if (ret > (uint32_t)(-515)) {
1443 env->crf[0] |= 0x1;
1444 ret = -ret;
1445 }
1446 env->gpr[3] = ret;
bellard61190b12004-01-04 23:54:31 +00001447#if 0
1448 printf("syscall returned 0x%08x (%d)\n", ret, ret);
1449#endif
bellard67867302003-11-23 17:05:30 +00001450 break;
aurel3271f75752008-11-14 17:05:54 +00001451 case EXCP_DEBUG:
1452 {
1453 int sig;
1454
1455 sig = gdb_handlesig(env, TARGET_SIGTRAP);
1456 if (sig) {
1457 info.si_signo = sig;
1458 info.si_errno = 0;
1459 info.si_code = TARGET_TRAP_BRKPT;
1460 queue_signal(env, info.si_signo, &info);
1461 }
1462 }
1463 break;
j_mayer56ba31f2007-09-30 15:15:18 +00001464 case EXCP_INTERRUPT:
1465 /* just indicate that signals should be handled asap */
1466 break;
bellard67867302003-11-23 17:05:30 +00001467 default:
j_mayere1833e12007-09-29 13:06:16 +00001468 cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
1469 break;
bellard67867302003-11-23 17:05:30 +00001470 }
1471 process_pending_signals(env);
1472 }
1473}
1474#endif
1475
bellard048f6b42005-11-26 18:47:20 +00001476#ifdef TARGET_MIPS
1477
1478#define MIPS_SYS(name, args) args,
1479
1480static const uint8_t mips_syscall_args[] = {
1481 MIPS_SYS(sys_syscall , 0) /* 4000 */
1482 MIPS_SYS(sys_exit , 1)
1483 MIPS_SYS(sys_fork , 0)
1484 MIPS_SYS(sys_read , 3)
1485 MIPS_SYS(sys_write , 3)
1486 MIPS_SYS(sys_open , 3) /* 4005 */
1487 MIPS_SYS(sys_close , 1)
1488 MIPS_SYS(sys_waitpid , 3)
1489 MIPS_SYS(sys_creat , 2)
1490 MIPS_SYS(sys_link , 2)
1491 MIPS_SYS(sys_unlink , 1) /* 4010 */
1492 MIPS_SYS(sys_execve , 0)
1493 MIPS_SYS(sys_chdir , 1)
1494 MIPS_SYS(sys_time , 1)
1495 MIPS_SYS(sys_mknod , 3)
1496 MIPS_SYS(sys_chmod , 2) /* 4015 */
1497 MIPS_SYS(sys_lchown , 3)
1498 MIPS_SYS(sys_ni_syscall , 0)
1499 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1500 MIPS_SYS(sys_lseek , 3)
1501 MIPS_SYS(sys_getpid , 0) /* 4020 */
1502 MIPS_SYS(sys_mount , 5)
1503 MIPS_SYS(sys_oldumount , 1)
1504 MIPS_SYS(sys_setuid , 1)
1505 MIPS_SYS(sys_getuid , 0)
1506 MIPS_SYS(sys_stime , 1) /* 4025 */
1507 MIPS_SYS(sys_ptrace , 4)
1508 MIPS_SYS(sys_alarm , 1)
1509 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1510 MIPS_SYS(sys_pause , 0)
1511 MIPS_SYS(sys_utime , 2) /* 4030 */
1512 MIPS_SYS(sys_ni_syscall , 0)
1513 MIPS_SYS(sys_ni_syscall , 0)
1514 MIPS_SYS(sys_access , 2)
1515 MIPS_SYS(sys_nice , 1)
1516 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
1517 MIPS_SYS(sys_sync , 0)
1518 MIPS_SYS(sys_kill , 2)
1519 MIPS_SYS(sys_rename , 2)
1520 MIPS_SYS(sys_mkdir , 2)
1521 MIPS_SYS(sys_rmdir , 1) /* 4040 */
1522 MIPS_SYS(sys_dup , 1)
1523 MIPS_SYS(sys_pipe , 0)
1524 MIPS_SYS(sys_times , 1)
1525 MIPS_SYS(sys_ni_syscall , 0)
1526 MIPS_SYS(sys_brk , 1) /* 4045 */
1527 MIPS_SYS(sys_setgid , 1)
1528 MIPS_SYS(sys_getgid , 0)
1529 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
1530 MIPS_SYS(sys_geteuid , 0)
1531 MIPS_SYS(sys_getegid , 0) /* 4050 */
1532 MIPS_SYS(sys_acct , 0)
1533 MIPS_SYS(sys_umount , 2)
1534 MIPS_SYS(sys_ni_syscall , 0)
1535 MIPS_SYS(sys_ioctl , 3)
1536 MIPS_SYS(sys_fcntl , 3) /* 4055 */
1537 MIPS_SYS(sys_ni_syscall , 2)
1538 MIPS_SYS(sys_setpgid , 2)
1539 MIPS_SYS(sys_ni_syscall , 0)
1540 MIPS_SYS(sys_olduname , 1)
1541 MIPS_SYS(sys_umask , 1) /* 4060 */
1542 MIPS_SYS(sys_chroot , 1)
1543 MIPS_SYS(sys_ustat , 2)
1544 MIPS_SYS(sys_dup2 , 2)
1545 MIPS_SYS(sys_getppid , 0)
1546 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
1547 MIPS_SYS(sys_setsid , 0)
1548 MIPS_SYS(sys_sigaction , 3)
1549 MIPS_SYS(sys_sgetmask , 0)
1550 MIPS_SYS(sys_ssetmask , 1)
1551 MIPS_SYS(sys_setreuid , 2) /* 4070 */
1552 MIPS_SYS(sys_setregid , 2)
1553 MIPS_SYS(sys_sigsuspend , 0)
1554 MIPS_SYS(sys_sigpending , 1)
1555 MIPS_SYS(sys_sethostname , 2)
1556 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
1557 MIPS_SYS(sys_getrlimit , 2)
1558 MIPS_SYS(sys_getrusage , 2)
1559 MIPS_SYS(sys_gettimeofday, 2)
1560 MIPS_SYS(sys_settimeofday, 2)
1561 MIPS_SYS(sys_getgroups , 2) /* 4080 */
1562 MIPS_SYS(sys_setgroups , 2)
1563 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
1564 MIPS_SYS(sys_symlink , 2)
1565 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
1566 MIPS_SYS(sys_readlink , 3) /* 4085 */
1567 MIPS_SYS(sys_uselib , 1)
1568 MIPS_SYS(sys_swapon , 2)
1569 MIPS_SYS(sys_reboot , 3)
1570 MIPS_SYS(old_readdir , 3)
1571 MIPS_SYS(old_mmap , 6) /* 4090 */
1572 MIPS_SYS(sys_munmap , 2)
1573 MIPS_SYS(sys_truncate , 2)
1574 MIPS_SYS(sys_ftruncate , 2)
1575 MIPS_SYS(sys_fchmod , 2)
1576 MIPS_SYS(sys_fchown , 3) /* 4095 */
1577 MIPS_SYS(sys_getpriority , 2)
1578 MIPS_SYS(sys_setpriority , 3)
1579 MIPS_SYS(sys_ni_syscall , 0)
1580 MIPS_SYS(sys_statfs , 2)
1581 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
1582 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
1583 MIPS_SYS(sys_socketcall , 2)
1584 MIPS_SYS(sys_syslog , 3)
1585 MIPS_SYS(sys_setitimer , 3)
1586 MIPS_SYS(sys_getitimer , 2) /* 4105 */
1587 MIPS_SYS(sys_newstat , 2)
1588 MIPS_SYS(sys_newlstat , 2)
1589 MIPS_SYS(sys_newfstat , 2)
1590 MIPS_SYS(sys_uname , 1)
1591 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
1592 MIPS_SYS(sys_vhangup , 0)
1593 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
1594 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
1595 MIPS_SYS(sys_wait4 , 4)
1596 MIPS_SYS(sys_swapoff , 1) /* 4115 */
1597 MIPS_SYS(sys_sysinfo , 1)
1598 MIPS_SYS(sys_ipc , 6)
1599 MIPS_SYS(sys_fsync , 1)
1600 MIPS_SYS(sys_sigreturn , 0)
1601 MIPS_SYS(sys_clone , 0) /* 4120 */
1602 MIPS_SYS(sys_setdomainname, 2)
1603 MIPS_SYS(sys_newuname , 1)
1604 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
1605 MIPS_SYS(sys_adjtimex , 1)
1606 MIPS_SYS(sys_mprotect , 3) /* 4125 */
1607 MIPS_SYS(sys_sigprocmask , 3)
1608 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
1609 MIPS_SYS(sys_init_module , 5)
1610 MIPS_SYS(sys_delete_module, 1)
1611 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
1612 MIPS_SYS(sys_quotactl , 0)
1613 MIPS_SYS(sys_getpgid , 1)
1614 MIPS_SYS(sys_fchdir , 1)
1615 MIPS_SYS(sys_bdflush , 2)
1616 MIPS_SYS(sys_sysfs , 3) /* 4135 */
1617 MIPS_SYS(sys_personality , 1)
1618 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
1619 MIPS_SYS(sys_setfsuid , 1)
1620 MIPS_SYS(sys_setfsgid , 1)
1621 MIPS_SYS(sys_llseek , 5) /* 4140 */
1622 MIPS_SYS(sys_getdents , 3)
1623 MIPS_SYS(sys_select , 5)
1624 MIPS_SYS(sys_flock , 2)
1625 MIPS_SYS(sys_msync , 3)
1626 MIPS_SYS(sys_readv , 3) /* 4145 */
1627 MIPS_SYS(sys_writev , 3)
1628 MIPS_SYS(sys_cacheflush , 3)
1629 MIPS_SYS(sys_cachectl , 3)
1630 MIPS_SYS(sys_sysmips , 4)
1631 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
1632 MIPS_SYS(sys_getsid , 1)
1633 MIPS_SYS(sys_fdatasync , 0)
1634 MIPS_SYS(sys_sysctl , 1)
1635 MIPS_SYS(sys_mlock , 2)
1636 MIPS_SYS(sys_munlock , 2) /* 4155 */
1637 MIPS_SYS(sys_mlockall , 1)
1638 MIPS_SYS(sys_munlockall , 0)
1639 MIPS_SYS(sys_sched_setparam, 2)
1640 MIPS_SYS(sys_sched_getparam, 2)
1641 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
1642 MIPS_SYS(sys_sched_getscheduler, 1)
1643 MIPS_SYS(sys_sched_yield , 0)
1644 MIPS_SYS(sys_sched_get_priority_max, 1)
1645 MIPS_SYS(sys_sched_get_priority_min, 1)
1646 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
1647 MIPS_SYS(sys_nanosleep, 2)
1648 MIPS_SYS(sys_mremap , 4)
1649 MIPS_SYS(sys_accept , 3)
1650 MIPS_SYS(sys_bind , 3)
1651 MIPS_SYS(sys_connect , 3) /* 4170 */
1652 MIPS_SYS(sys_getpeername , 3)
1653 MIPS_SYS(sys_getsockname , 3)
1654 MIPS_SYS(sys_getsockopt , 5)
1655 MIPS_SYS(sys_listen , 2)
1656 MIPS_SYS(sys_recv , 4) /* 4175 */
1657 MIPS_SYS(sys_recvfrom , 6)
1658 MIPS_SYS(sys_recvmsg , 3)
1659 MIPS_SYS(sys_send , 4)
1660 MIPS_SYS(sys_sendmsg , 3)
1661 MIPS_SYS(sys_sendto , 6) /* 4180 */
1662 MIPS_SYS(sys_setsockopt , 5)
1663 MIPS_SYS(sys_shutdown , 2)
1664 MIPS_SYS(sys_socket , 3)
1665 MIPS_SYS(sys_socketpair , 4)
1666 MIPS_SYS(sys_setresuid , 3) /* 4185 */
1667 MIPS_SYS(sys_getresuid , 3)
1668 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
1669 MIPS_SYS(sys_poll , 3)
1670 MIPS_SYS(sys_nfsservctl , 3)
1671 MIPS_SYS(sys_setresgid , 3) /* 4190 */
1672 MIPS_SYS(sys_getresgid , 3)
1673 MIPS_SYS(sys_prctl , 5)
1674 MIPS_SYS(sys_rt_sigreturn, 0)
1675 MIPS_SYS(sys_rt_sigaction, 4)
1676 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
1677 MIPS_SYS(sys_rt_sigpending, 2)
1678 MIPS_SYS(sys_rt_sigtimedwait, 4)
1679 MIPS_SYS(sys_rt_sigqueueinfo, 3)
1680 MIPS_SYS(sys_rt_sigsuspend, 0)
1681 MIPS_SYS(sys_pread64 , 6) /* 4200 */
1682 MIPS_SYS(sys_pwrite64 , 6)
1683 MIPS_SYS(sys_chown , 3)
1684 MIPS_SYS(sys_getcwd , 2)
1685 MIPS_SYS(sys_capget , 2)
1686 MIPS_SYS(sys_capset , 2) /* 4205 */
1687 MIPS_SYS(sys_sigaltstack , 0)
1688 MIPS_SYS(sys_sendfile , 4)
1689 MIPS_SYS(sys_ni_syscall , 0)
1690 MIPS_SYS(sys_ni_syscall , 0)
1691 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
1692 MIPS_SYS(sys_truncate64 , 4)
1693 MIPS_SYS(sys_ftruncate64 , 4)
1694 MIPS_SYS(sys_stat64 , 2)
1695 MIPS_SYS(sys_lstat64 , 2)
1696 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
1697 MIPS_SYS(sys_pivot_root , 2)
1698 MIPS_SYS(sys_mincore , 3)
1699 MIPS_SYS(sys_madvise , 3)
1700 MIPS_SYS(sys_getdents64 , 3)
1701 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
1702 MIPS_SYS(sys_ni_syscall , 0)
1703 MIPS_SYS(sys_gettid , 0)
1704 MIPS_SYS(sys_readahead , 5)
1705 MIPS_SYS(sys_setxattr , 5)
1706 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
1707 MIPS_SYS(sys_fsetxattr , 5)
1708 MIPS_SYS(sys_getxattr , 4)
1709 MIPS_SYS(sys_lgetxattr , 4)
1710 MIPS_SYS(sys_fgetxattr , 4)
1711 MIPS_SYS(sys_listxattr , 3) /* 4230 */
1712 MIPS_SYS(sys_llistxattr , 3)
1713 MIPS_SYS(sys_flistxattr , 3)
1714 MIPS_SYS(sys_removexattr , 2)
1715 MIPS_SYS(sys_lremovexattr, 2)
1716 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
1717 MIPS_SYS(sys_tkill , 2)
1718 MIPS_SYS(sys_sendfile64 , 5)
1719 MIPS_SYS(sys_futex , 2)
1720 MIPS_SYS(sys_sched_setaffinity, 3)
1721 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
1722 MIPS_SYS(sys_io_setup , 2)
1723 MIPS_SYS(sys_io_destroy , 1)
1724 MIPS_SYS(sys_io_getevents, 5)
1725 MIPS_SYS(sys_io_submit , 3)
1726 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
1727 MIPS_SYS(sys_exit_group , 1)
1728 MIPS_SYS(sys_lookup_dcookie, 3)
1729 MIPS_SYS(sys_epoll_create, 1)
1730 MIPS_SYS(sys_epoll_ctl , 4)
1731 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
1732 MIPS_SYS(sys_remap_file_pages, 5)
1733 MIPS_SYS(sys_set_tid_address, 1)
1734 MIPS_SYS(sys_restart_syscall, 0)
1735 MIPS_SYS(sys_fadvise64_64, 7)
1736 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
1737 MIPS_SYS(sys_fstatfs64 , 2)
1738 MIPS_SYS(sys_timer_create, 3)
1739 MIPS_SYS(sys_timer_settime, 4)
1740 MIPS_SYS(sys_timer_gettime, 2)
1741 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
1742 MIPS_SYS(sys_timer_delete, 1)
1743 MIPS_SYS(sys_clock_settime, 2)
1744 MIPS_SYS(sys_clock_gettime, 2)
1745 MIPS_SYS(sys_clock_getres, 2)
1746 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
1747 MIPS_SYS(sys_tgkill , 3)
1748 MIPS_SYS(sys_utimes , 2)
1749 MIPS_SYS(sys_mbind , 4)
1750 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
1751 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
1752 MIPS_SYS(sys_mq_open , 4)
1753 MIPS_SYS(sys_mq_unlink , 1)
1754 MIPS_SYS(sys_mq_timedsend, 5)
1755 MIPS_SYS(sys_mq_timedreceive, 5)
1756 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
1757 MIPS_SYS(sys_mq_getsetattr, 3)
1758 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
1759 MIPS_SYS(sys_waitid , 4)
1760 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
1761 MIPS_SYS(sys_add_key , 5)
ths388bb212007-05-13 13:58:00 +00001762 MIPS_SYS(sys_request_key, 4)
bellard048f6b42005-11-26 18:47:20 +00001763 MIPS_SYS(sys_keyctl , 5)
ths6f5b89a2007-03-02 20:48:00 +00001764 MIPS_SYS(sys_set_thread_area, 1)
ths388bb212007-05-13 13:58:00 +00001765 MIPS_SYS(sys_inotify_init, 0)
1766 MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
1767 MIPS_SYS(sys_inotify_rm_watch, 2)
1768 MIPS_SYS(sys_migrate_pages, 4)
1769 MIPS_SYS(sys_openat, 4)
1770 MIPS_SYS(sys_mkdirat, 3)
1771 MIPS_SYS(sys_mknodat, 4) /* 4290 */
1772 MIPS_SYS(sys_fchownat, 5)
1773 MIPS_SYS(sys_futimesat, 3)
1774 MIPS_SYS(sys_fstatat64, 4)
1775 MIPS_SYS(sys_unlinkat, 3)
1776 MIPS_SYS(sys_renameat, 4) /* 4295 */
1777 MIPS_SYS(sys_linkat, 5)
1778 MIPS_SYS(sys_symlinkat, 3)
1779 MIPS_SYS(sys_readlinkat, 4)
1780 MIPS_SYS(sys_fchmodat, 3)
1781 MIPS_SYS(sys_faccessat, 3) /* 4300 */
1782 MIPS_SYS(sys_pselect6, 6)
1783 MIPS_SYS(sys_ppoll, 5)
1784 MIPS_SYS(sys_unshare, 1)
1785 MIPS_SYS(sys_splice, 4)
1786 MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
1787 MIPS_SYS(sys_tee, 4)
1788 MIPS_SYS(sys_vmsplice, 4)
1789 MIPS_SYS(sys_move_pages, 6)
1790 MIPS_SYS(sys_set_robust_list, 2)
1791 MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
1792 MIPS_SYS(sys_kexec_load, 4)
1793 MIPS_SYS(sys_getcpu, 3)
1794 MIPS_SYS(sys_epoll_pwait, 6)
1795 MIPS_SYS(sys_ioprio_set, 3)
1796 MIPS_SYS(sys_ioprio_get, 2)
bellard048f6b42005-11-26 18:47:20 +00001797};
1798
1799#undef MIPS_SYS
1800
1801void cpu_loop(CPUMIPSState *env)
1802{
1803 target_siginfo_t info;
ths388bb212007-05-13 13:58:00 +00001804 int trapnr, ret;
bellard048f6b42005-11-26 18:47:20 +00001805 unsigned int syscall_num;
bellard048f6b42005-11-26 18:47:20 +00001806
1807 for(;;) {
1808 trapnr = cpu_mips_exec(env);
1809 switch(trapnr) {
1810 case EXCP_SYSCALL:
thsb5dc7732008-06-27 10:02:35 +00001811 syscall_num = env->active_tc.gpr[2] - 4000;
1812 env->active_tc.PC += 4;
ths388bb212007-05-13 13:58:00 +00001813 if (syscall_num >= sizeof(mips_syscall_args)) {
1814 ret = -ENOSYS;
1815 } else {
1816 int nb_args;
blueswir1992f48a2007-10-14 16:27:31 +00001817 abi_ulong sp_reg;
1818 abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
ths388bb212007-05-13 13:58:00 +00001819
1820 nb_args = mips_syscall_args[syscall_num];
thsb5dc7732008-06-27 10:02:35 +00001821 sp_reg = env->active_tc.gpr[29];
ths388bb212007-05-13 13:58:00 +00001822 switch (nb_args) {
1823 /* these arguments are taken from the stack */
bellard2f619692007-11-16 10:46:05 +00001824 /* FIXME - what to do if get_user() fails? */
1825 case 8: get_user_ual(arg8, sp_reg + 28);
1826 case 7: get_user_ual(arg7, sp_reg + 24);
1827 case 6: get_user_ual(arg6, sp_reg + 20);
1828 case 5: get_user_ual(arg5, sp_reg + 16);
ths388bb212007-05-13 13:58:00 +00001829 default:
1830 break;
bellard048f6b42005-11-26 18:47:20 +00001831 }
thsb5dc7732008-06-27 10:02:35 +00001832 ret = do_syscall(env, env->active_tc.gpr[2],
1833 env->active_tc.gpr[4],
1834 env->active_tc.gpr[5],
1835 env->active_tc.gpr[6],
1836 env->active_tc.gpr[7],
ths388bb212007-05-13 13:58:00 +00001837 arg5, arg6/*, arg7, arg8*/);
bellard048f6b42005-11-26 18:47:20 +00001838 }
ths388bb212007-05-13 13:58:00 +00001839 if ((unsigned int)ret >= (unsigned int)(-1133)) {
thsb5dc7732008-06-27 10:02:35 +00001840 env->active_tc.gpr[7] = 1; /* error flag */
ths388bb212007-05-13 13:58:00 +00001841 ret = -ret;
1842 } else {
thsb5dc7732008-06-27 10:02:35 +00001843 env->active_tc.gpr[7] = 0; /* error flag */
ths388bb212007-05-13 13:58:00 +00001844 }
thsb5dc7732008-06-27 10:02:35 +00001845 env->active_tc.gpr[2] = ret;
bellard048f6b42005-11-26 18:47:20 +00001846 break;
thsca7c2b12006-12-10 22:08:10 +00001847 case EXCP_TLBL:
1848 case EXCP_TLBS:
bellard6900e842005-12-05 21:04:24 +00001849 case EXCP_CpU:
bellard048f6b42005-11-26 18:47:20 +00001850 case EXCP_RI:
bellardbc1ad2d2006-06-14 13:37:55 +00001851 info.si_signo = TARGET_SIGILL;
1852 info.si_errno = 0;
1853 info.si_code = 0;
pbrook624f7972008-05-31 16:11:38 +00001854 queue_signal(env, info.si_signo, &info);
bellard048f6b42005-11-26 18:47:20 +00001855 break;
bellard106ec872006-06-27 21:08:10 +00001856 case EXCP_INTERRUPT:
1857 /* just indicate that signals should be handled asap */
1858 break;
pbrookd08b2a22006-11-04 16:46:29 +00001859 case EXCP_DEBUG:
1860 {
1861 int sig;
1862
1863 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1864 if (sig)
1865 {
1866 info.si_signo = sig;
1867 info.si_errno = 0;
1868 info.si_code = TARGET_TRAP_BRKPT;
pbrook624f7972008-05-31 16:11:38 +00001869 queue_signal(env, info.si_signo, &info);
pbrookd08b2a22006-11-04 16:46:29 +00001870 }
1871 }
1872 break;
bellard048f6b42005-11-26 18:47:20 +00001873 default:
1874 // error:
ths5fafdf22007-09-16 21:08:06 +00001875 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
bellard048f6b42005-11-26 18:47:20 +00001876 trapnr);
1877 cpu_dump_state(env, stderr, fprintf, 0);
1878 abort();
1879 }
1880 process_pending_signals(env);
1881 }
1882}
1883#endif
1884
bellardfdf9b3e2006-04-27 21:07:38 +00001885#ifdef TARGET_SH4
1886void cpu_loop (CPUState *env)
1887{
1888 int trapnr, ret;
pbrook355fb232006-06-17 19:58:25 +00001889 target_siginfo_t info;
ths3b46e622007-09-17 08:09:54 +00001890
bellardfdf9b3e2006-04-27 21:07:38 +00001891 while (1) {
1892 trapnr = cpu_sh4_exec (env);
ths3b46e622007-09-17 08:09:54 +00001893
bellardfdf9b3e2006-04-27 21:07:38 +00001894 switch (trapnr) {
1895 case 0x160:
aurel320b6d3ae2008-09-15 07:43:43 +00001896 env->pc += 2;
ths5fafdf22007-09-16 21:08:06 +00001897 ret = do_syscall(env,
1898 env->gregs[3],
1899 env->gregs[4],
1900 env->gregs[5],
1901 env->gregs[6],
1902 env->gregs[7],
1903 env->gregs[0],
thsfca743f2007-11-20 15:22:44 +00001904 env->gregs[1]);
pbrook9c2a9ea2006-06-18 19:12:54 +00001905 env->gregs[0] = ret;
bellardfdf9b3e2006-04-27 21:07:38 +00001906 break;
thsc3b5bc82007-12-02 06:31:25 +00001907 case EXCP_INTERRUPT:
1908 /* just indicate that signals should be handled asap */
1909 break;
pbrook355fb232006-06-17 19:58:25 +00001910 case EXCP_DEBUG:
1911 {
1912 int sig;
1913
1914 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1915 if (sig)
1916 {
1917 info.si_signo = sig;
1918 info.si_errno = 0;
1919 info.si_code = TARGET_TRAP_BRKPT;
pbrook624f7972008-05-31 16:11:38 +00001920 queue_signal(env, info.si_signo, &info);
pbrook355fb232006-06-17 19:58:25 +00001921 }
1922 }
1923 break;
thsc3b5bc82007-12-02 06:31:25 +00001924 case 0xa0:
1925 case 0xc0:
1926 info.si_signo = SIGSEGV;
1927 info.si_errno = 0;
1928 info.si_code = TARGET_SEGV_MAPERR;
1929 info._sifields._sigfault._addr = env->tea;
pbrook624f7972008-05-31 16:11:38 +00001930 queue_signal(env, info.si_signo, &info);
thsc3b5bc82007-12-02 06:31:25 +00001931 break;
1932
bellardfdf9b3e2006-04-27 21:07:38 +00001933 default:
1934 printf ("Unhandled trap: 0x%x\n", trapnr);
1935 cpu_dump_state(env, stderr, fprintf, 0);
1936 exit (1);
1937 }
1938 process_pending_signals (env);
1939 }
1940}
1941#endif
1942
ths48733d12007-10-08 13:36:46 +00001943#ifdef TARGET_CRIS
1944void cpu_loop (CPUState *env)
1945{
1946 int trapnr, ret;
1947 target_siginfo_t info;
1948
1949 while (1) {
1950 trapnr = cpu_cris_exec (env);
1951 switch (trapnr) {
1952 case 0xaa:
1953 {
1954 info.si_signo = SIGSEGV;
1955 info.si_errno = 0;
1956 /* XXX: check env->error_code */
1957 info.si_code = TARGET_SEGV_MAPERR;
edgar_igle00c1e72008-05-27 21:12:09 +00001958 info._sifields._sigfault._addr = env->pregs[PR_EDA];
pbrook624f7972008-05-31 16:11:38 +00001959 queue_signal(env, info.si_signo, &info);
ths48733d12007-10-08 13:36:46 +00001960 }
1961 break;
edgar_iglb6d3abd2008-02-28 11:29:27 +00001962 case EXCP_INTERRUPT:
1963 /* just indicate that signals should be handled asap */
1964 break;
ths48733d12007-10-08 13:36:46 +00001965 case EXCP_BREAK:
1966 ret = do_syscall(env,
1967 env->regs[9],
1968 env->regs[10],
1969 env->regs[11],
1970 env->regs[12],
1971 env->regs[13],
1972 env->pregs[7],
1973 env->pregs[11]);
1974 env->regs[10] = ret;
ths48733d12007-10-08 13:36:46 +00001975 break;
1976 case EXCP_DEBUG:
1977 {
1978 int sig;
1979
1980 sig = gdb_handlesig (env, TARGET_SIGTRAP);
1981 if (sig)
1982 {
1983 info.si_signo = sig;
1984 info.si_errno = 0;
1985 info.si_code = TARGET_TRAP_BRKPT;
pbrook624f7972008-05-31 16:11:38 +00001986 queue_signal(env, info.si_signo, &info);
ths48733d12007-10-08 13:36:46 +00001987 }
1988 }
1989 break;
1990 default:
1991 printf ("Unhandled trap: 0x%x\n", trapnr);
1992 cpu_dump_state(env, stderr, fprintf, 0);
1993 exit (1);
1994 }
1995 process_pending_signals (env);
1996 }
1997}
1998#endif
1999
pbrooke6e59062006-10-22 00:18:54 +00002000#ifdef TARGET_M68K
2001
2002void cpu_loop(CPUM68KState *env)
2003{
2004 int trapnr;
2005 unsigned int n;
2006 target_siginfo_t info;
2007 TaskState *ts = env->opaque;
ths3b46e622007-09-17 08:09:54 +00002008
pbrooke6e59062006-10-22 00:18:54 +00002009 for(;;) {
2010 trapnr = cpu_m68k_exec(env);
2011 switch(trapnr) {
2012 case EXCP_ILLEGAL:
2013 {
2014 if (ts->sim_syscalls) {
2015 uint16_t nr;
2016 nr = lduw(env->pc + 2);
2017 env->pc += 4;
2018 do_m68k_simcall(env, nr);
2019 } else {
2020 goto do_sigill;
2021 }
2022 }
2023 break;
pbrooka87295e2007-05-26 15:09:38 +00002024 case EXCP_HALT_INSN:
pbrooke6e59062006-10-22 00:18:54 +00002025 /* Semihosing syscall. */
pbrooka87295e2007-05-26 15:09:38 +00002026 env->pc += 4;
pbrooke6e59062006-10-22 00:18:54 +00002027 do_m68k_semihosting(env, env->dregs[0]);
2028 break;
2029 case EXCP_LINEA:
2030 case EXCP_LINEF:
2031 case EXCP_UNSUPPORTED:
2032 do_sigill:
2033 info.si_signo = SIGILL;
2034 info.si_errno = 0;
2035 info.si_code = TARGET_ILL_ILLOPN;
2036 info._sifields._sigfault._addr = env->pc;
pbrook624f7972008-05-31 16:11:38 +00002037 queue_signal(env, info.si_signo, &info);
pbrooke6e59062006-10-22 00:18:54 +00002038 break;
2039 case EXCP_TRAP0:
2040 {
2041 ts->sim_syscalls = 0;
2042 n = env->dregs[0];
2043 env->pc += 2;
ths5fafdf22007-09-16 21:08:06 +00002044 env->dregs[0] = do_syscall(env,
2045 n,
pbrooke6e59062006-10-22 00:18:54 +00002046 env->dregs[1],
2047 env->dregs[2],
2048 env->dregs[3],
2049 env->dregs[4],
2050 env->dregs[5],
pbrookbb7ec042008-03-25 22:28:25 +00002051 env->aregs[0]);
pbrooke6e59062006-10-22 00:18:54 +00002052 }
2053 break;
2054 case EXCP_INTERRUPT:
2055 /* just indicate that signals should be handled asap */
2056 break;
2057 case EXCP_ACCESS:
2058 {
2059 info.si_signo = SIGSEGV;
2060 info.si_errno = 0;
2061 /* XXX: check env->error_code */
2062 info.si_code = TARGET_SEGV_MAPERR;
2063 info._sifields._sigfault._addr = env->mmu.ar;
pbrook624f7972008-05-31 16:11:38 +00002064 queue_signal(env, info.si_signo, &info);
pbrooke6e59062006-10-22 00:18:54 +00002065 }
2066 break;
2067 case EXCP_DEBUG:
2068 {
2069 int sig;
2070
2071 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2072 if (sig)
2073 {
2074 info.si_signo = sig;
2075 info.si_errno = 0;
2076 info.si_code = TARGET_TRAP_BRKPT;
pbrook624f7972008-05-31 16:11:38 +00002077 queue_signal(env, info.si_signo, &info);
pbrooke6e59062006-10-22 00:18:54 +00002078 }
2079 }
2080 break;
2081 default:
ths5fafdf22007-09-16 21:08:06 +00002082 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
pbrooke6e59062006-10-22 00:18:54 +00002083 trapnr);
2084 cpu_dump_state(env, stderr, fprintf, 0);
2085 abort();
2086 }
2087 process_pending_signals(env);
2088 }
2089}
2090#endif /* TARGET_M68K */
2091
j_mayer7a3148a2007-04-05 07:13:51 +00002092#ifdef TARGET_ALPHA
2093void cpu_loop (CPUState *env)
2094{
j_mayere96efcf2007-04-14 12:17:09 +00002095 int trapnr;
j_mayer7a3148a2007-04-05 07:13:51 +00002096 target_siginfo_t info;
ths3b46e622007-09-17 08:09:54 +00002097
j_mayer7a3148a2007-04-05 07:13:51 +00002098 while (1) {
2099 trapnr = cpu_alpha_exec (env);
ths3b46e622007-09-17 08:09:54 +00002100
j_mayer7a3148a2007-04-05 07:13:51 +00002101 switch (trapnr) {
2102 case EXCP_RESET:
2103 fprintf(stderr, "Reset requested. Exit\n");
2104 exit(1);
2105 break;
2106 case EXCP_MCHK:
2107 fprintf(stderr, "Machine check exception. Exit\n");
2108 exit(1);
2109 break;
2110 case EXCP_ARITH:
2111 fprintf(stderr, "Arithmetic trap.\n");
2112 exit(1);
2113 break;
2114 case EXCP_HW_INTERRUPT:
ths5fafdf22007-09-16 21:08:06 +00002115 fprintf(stderr, "External interrupt. Exit\n");
j_mayer7a3148a2007-04-05 07:13:51 +00002116 exit(1);
2117 break;
2118 case EXCP_DFAULT:
2119 fprintf(stderr, "MMU data fault\n");
2120 exit(1);
2121 break;
2122 case EXCP_DTB_MISS_PAL:
2123 fprintf(stderr, "MMU data TLB miss in PALcode\n");
2124 exit(1);
2125 break;
2126 case EXCP_ITB_MISS:
2127 fprintf(stderr, "MMU instruction TLB miss\n");
2128 exit(1);
2129 break;
2130 case EXCP_ITB_ACV:
2131 fprintf(stderr, "MMU instruction access violation\n");
2132 exit(1);
2133 break;
2134 case EXCP_DTB_MISS_NATIVE:
2135 fprintf(stderr, "MMU data TLB miss\n");
2136 exit(1);
2137 break;
2138 case EXCP_UNALIGN:
2139 fprintf(stderr, "Unaligned access\n");
2140 exit(1);
2141 break;
2142 case EXCP_OPCDEC:
2143 fprintf(stderr, "Invalid instruction\n");
2144 exit(1);
2145 break;
2146 case EXCP_FEN:
2147 fprintf(stderr, "Floating-point not allowed\n");
2148 exit(1);
2149 break;
2150 case EXCP_CALL_PAL ... (EXCP_CALL_PALP - 1):
j_mayer7a3148a2007-04-05 07:13:51 +00002151 call_pal(env, (trapnr >> 6) | 0x80);
2152 break;
2153 case EXCP_CALL_PALP ... (EXCP_CALL_PALE - 1):
blueswir17f75ffd2007-05-27 19:39:27 +00002154 fprintf(stderr, "Privileged call to PALcode\n");
j_mayer7a3148a2007-04-05 07:13:51 +00002155 exit(1);
2156 break;
2157 case EXCP_DEBUG:
2158 {
2159 int sig;
2160
2161 sig = gdb_handlesig (env, TARGET_SIGTRAP);
2162 if (sig)
2163 {
2164 info.si_signo = sig;
2165 info.si_errno = 0;
2166 info.si_code = TARGET_TRAP_BRKPT;
pbrook624f7972008-05-31 16:11:38 +00002167 queue_signal(env, info.si_signo, &info);
j_mayer7a3148a2007-04-05 07:13:51 +00002168 }
2169 }
2170 break;
2171 default:
2172 printf ("Unhandled trap: 0x%x\n", trapnr);
2173 cpu_dump_state(env, stderr, fprintf, 0);
2174 exit (1);
2175 }
2176 process_pending_signals (env);
2177 }
2178}
2179#endif /* TARGET_ALPHA */
2180
blueswir18fcd3692008-08-17 20:26:25 +00002181static void usage(void)
bellard31e31b82003-02-18 22:55:36 +00002182{
bellard68d0f702008-01-06 17:21:48 +00002183 printf("qemu-" TARGET_ARCH " version " QEMU_VERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n"
2184 "usage: qemu-" TARGET_ARCH " [options] program [arguments...]\n"
bellardb346ff42003-06-15 20:05:50 +00002185 "Linux CPU emulator (compiled for %s emulation)\n"
bellardd691f662003-03-24 21:58:34 +00002186 "\n"
bellard68d0f702008-01-06 17:21:48 +00002187 "Standard options:\n"
thsb12b6a12007-06-17 16:38:39 +00002188 "-h print this help\n"
2189 "-g port wait gdb connection to port\n"
2190 "-L path set the elf interpreter prefix (default=%s)\n"
2191 "-s size set the stack size in bytes (default=%ld)\n"
2192 "-cpu model select CPU (-cpu ? for list)\n"
2193 "-drop-ld-preload drop LD_PRELOAD for target process\n"
aurel3204a6dfe2009-01-30 19:59:17 +00002194 "-E var=value sets/modifies targets environment variable(s)\n"
2195 "-U var unsets targets environment variable(s)\n"
bellard54936002003-05-13 00:25:15 +00002196 "\n"
bellard68d0f702008-01-06 17:21:48 +00002197 "Debug options:\n"
bellard6f1f31c2004-04-25 18:00:45 +00002198 "-d options activate log (logfile=%s)\n"
bellardb6741952007-11-11 14:46:06 +00002199 "-p pagesize set the host page size to 'pagesize'\n"
balrogb01bcae2007-12-16 13:05:59 +00002200 "-strace log system calls\n"
2201 "\n"
bellard68d0f702008-01-06 17:21:48 +00002202 "Environment variables:\n"
balrogb01bcae2007-12-16 13:05:59 +00002203 "QEMU_STRACE Print system calls and arguments similar to the\n"
2204 " 'strace' program. Enable by setting to any value.\n"
aurel3204a6dfe2009-01-30 19:59:17 +00002205 "You can use -E and -U options to set/unset environment variables\n"
2206 "for target process. It is possible to provide several variables\n"
2207 "by repeating the option. For example:\n"
2208 " -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n"
2209 "Note that if you provide several changes to single variable\n"
2210 "last change will stay in effect.\n"
balrogb01bcae2007-12-16 13:05:59 +00002211 ,
bellardb346ff42003-06-15 20:05:50 +00002212 TARGET_ARCH,
ths5fafdf22007-09-16 21:08:06 +00002213 interp_prefix,
bellard54936002003-05-13 00:25:15 +00002214 x86_stack_size,
2215 DEBUG_LOGFILE);
bellard74cd30b2003-04-11 00:13:41 +00002216 _exit(1);
bellard31e31b82003-02-18 22:55:36 +00002217}
2218
pbrookd5975362008-06-07 20:50:51 +00002219THREAD CPUState *thread_env;
bellard59faf6d2003-06-25 16:18:50 +00002220
pbrookc3a92832008-06-09 14:02:50 +00002221/* Assumes contents are already zeroed. */
pbrook624f7972008-05-31 16:11:38 +00002222void init_task_state(TaskState *ts)
2223{
2224 int i;
2225
pbrook624f7972008-05-31 16:11:38 +00002226 ts->used = 1;
2227 ts->first_free = ts->sigqueue_table;
2228 for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) {
2229 ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1];
2230 }
2231 ts->sigqueue_table[i].next = NULL;
2232}
2233
malc902b3d52008-12-10 19:18:40 +00002234int main(int argc, char **argv, char **envp)
bellard31e31b82003-02-18 22:55:36 +00002235{
2236 const char *filename;
j_mayerb1f9be32007-03-19 08:08:28 +00002237 const char *cpu_model;
bellard01ffc752003-02-18 23:00:51 +00002238 struct target_pt_regs regs1, *regs = &regs1;
bellard31e31b82003-02-18 22:55:36 +00002239 struct image_info info1, *info = &info1;
bellard851e67a2003-03-29 16:53:14 +00002240 TaskState ts1, *ts = &ts1;
bellardb346ff42003-06-15 20:05:50 +00002241 CPUState *env;
bellard586314f2003-03-03 15:02:29 +00002242 int optind;
bellardd691f662003-03-24 21:58:34 +00002243 const char *r;
bellard74c33be2005-10-30 21:01:05 +00002244 int gdbstub_port = 0;
aurel3204a6dfe2009-01-30 19:59:17 +00002245 char **target_environ, **wrk;
2246 envlist_t *envlist = NULL;
thsb12b6a12007-06-17 16:38:39 +00002247
bellard31e31b82003-02-18 22:55:36 +00002248 if (argc <= 1)
pbrook44de1b32008-03-26 22:40:25 +00002249 usage();
bellardf801f972003-04-07 21:31:06 +00002250
malc902b3d52008-12-10 19:18:40 +00002251 qemu_cache_utils_init(envp);
2252
bellardcc38b842003-10-27 21:16:14 +00002253 /* init debug */
2254 cpu_set_log_filename(DEBUG_LOGFILE);
2255
aurel3204a6dfe2009-01-30 19:59:17 +00002256 if ((envlist = envlist_create()) == NULL) {
2257 (void) fprintf(stderr, "Unable to allocate envlist\n");
2258 exit(1);
2259 }
2260
2261 /* add current environment into the list */
2262 for (wrk = environ; *wrk != NULL; wrk++) {
2263 (void) envlist_setenv(envlist, *wrk);
2264 }
2265
j_mayerb1f9be32007-03-19 08:08:28 +00002266 cpu_model = NULL;
bellard586314f2003-03-03 15:02:29 +00002267 optind = 1;
bellardd691f662003-03-24 21:58:34 +00002268 for(;;) {
2269 if (optind >= argc)
2270 break;
2271 r = argv[optind];
2272 if (r[0] != '-')
2273 break;
bellard586314f2003-03-03 15:02:29 +00002274 optind++;
bellardd691f662003-03-24 21:58:34 +00002275 r++;
2276 if (!strcmp(r, "-")) {
2277 break;
2278 } else if (!strcmp(r, "d")) {
bellarde19e89a2004-03-21 17:08:23 +00002279 int mask;
blueswir1c7cd6a32008-10-02 18:27:46 +00002280 const CPULogItem *item;
bellard6f1f31c2004-04-25 18:00:45 +00002281
2282 if (optind >= argc)
2283 break;
ths3b46e622007-09-17 08:09:54 +00002284
bellard6f1f31c2004-04-25 18:00:45 +00002285 r = argv[optind++];
2286 mask = cpu_str_to_log_mask(r);
bellarde19e89a2004-03-21 17:08:23 +00002287 if (!mask) {
2288 printf("Log items (comma separated):\n");
2289 for(item = cpu_log_items; item->mask != 0; item++) {
2290 printf("%-10s %s\n", item->name, item->help);
2291 }
2292 exit(1);
2293 }
2294 cpu_set_log(mask);
aurel3204a6dfe2009-01-30 19:59:17 +00002295 } else if (!strcmp(r, "E")) {
2296 r = argv[optind++];
2297 if (envlist_setenv(envlist, r) != 0)
2298 usage();
2299 } else if (!strcmp(r, "U")) {
2300 r = argv[optind++];
2301 if (envlist_unsetenv(envlist, r) != 0)
2302 usage();
bellardd691f662003-03-24 21:58:34 +00002303 } else if (!strcmp(r, "s")) {
2304 r = argv[optind++];
2305 x86_stack_size = strtol(r, (char **)&r, 0);
2306 if (x86_stack_size <= 0)
pbrook44de1b32008-03-26 22:40:25 +00002307 usage();
bellardd691f662003-03-24 21:58:34 +00002308 if (*r == 'M')
2309 x86_stack_size *= 1024 * 1024;
2310 else if (*r == 'k' || *r == 'K')
2311 x86_stack_size *= 1024;
2312 } else if (!strcmp(r, "L")) {
2313 interp_prefix = argv[optind++];
bellard54936002003-05-13 00:25:15 +00002314 } else if (!strcmp(r, "p")) {
bellard83fb7ad2004-07-05 21:25:26 +00002315 qemu_host_page_size = atoi(argv[optind++]);
2316 if (qemu_host_page_size == 0 ||
2317 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
bellard54936002003-05-13 00:25:15 +00002318 fprintf(stderr, "page size must be a power of two\n");
2319 exit(1);
2320 }
bellard1fddef42005-04-17 19:16:13 +00002321 } else if (!strcmp(r, "g")) {
bellard74c33be2005-10-30 21:01:05 +00002322 gdbstub_port = atoi(argv[optind++]);
pbrookc5937222006-05-14 11:30:38 +00002323 } else if (!strcmp(r, "r")) {
2324 qemu_uname_release = argv[optind++];
j_mayerb1f9be32007-03-19 08:08:28 +00002325 } else if (!strcmp(r, "cpu")) {
2326 cpu_model = argv[optind++];
2327 if (strcmp(cpu_model, "?") == 0) {
j_mayerc732abe2007-10-12 06:47:46 +00002328/* XXX: implement xxx_cpu_list for targets that still miss it */
2329#if defined(cpu_list)
2330 cpu_list(stdout, &fprintf);
j_mayerb1f9be32007-03-19 08:08:28 +00002331#endif
thscff4cbe2007-03-19 12:16:29 +00002332 _exit(1);
j_mayerb1f9be32007-03-19 08:08:28 +00002333 }
thsb12b6a12007-06-17 16:38:39 +00002334 } else if (!strcmp(r, "drop-ld-preload")) {
aurel3204a6dfe2009-01-30 19:59:17 +00002335 (void) envlist_unsetenv(envlist, "LD_PRELOAD");
bellardb6741952007-11-11 14:46:06 +00002336 } else if (!strcmp(r, "strace")) {
2337 do_strace = 1;
ths5fafdf22007-09-16 21:08:06 +00002338 } else
bellardc6981052004-02-16 21:49:03 +00002339 {
bellardd691f662003-03-24 21:58:34 +00002340 usage();
2341 }
bellard586314f2003-03-03 15:02:29 +00002342 }
bellardd691f662003-03-24 21:58:34 +00002343 if (optind >= argc)
2344 usage();
bellard586314f2003-03-03 15:02:29 +00002345 filename = argv[optind];
aurel32d088d662009-01-30 20:09:01 +00002346 exec_path = argv[optind];
bellard586314f2003-03-03 15:02:29 +00002347
bellard31e31b82003-02-18 22:55:36 +00002348 /* Zero out regs */
bellard01ffc752003-02-18 23:00:51 +00002349 memset(regs, 0, sizeof(struct target_pt_regs));
bellard31e31b82003-02-18 22:55:36 +00002350
2351 /* Zero out image_info */
2352 memset(info, 0, sizeof(struct image_info));
2353
bellard74cd30b2003-04-11 00:13:41 +00002354 /* Scan interp_prefix dir for replacement files. */
2355 init_paths(interp_prefix);
2356
bellard46027c02007-11-08 13:56:19 +00002357 if (cpu_model == NULL) {
bellardaaed9092007-11-10 15:15:54 +00002358#if defined(TARGET_I386)
bellard46027c02007-11-08 13:56:19 +00002359#ifdef TARGET_X86_64
2360 cpu_model = "qemu64";
2361#else
2362 cpu_model = "qemu32";
2363#endif
bellardaaed9092007-11-10 15:15:54 +00002364#elif defined(TARGET_ARM)
2365 cpu_model = "arm926";
2366#elif defined(TARGET_M68K)
2367 cpu_model = "any";
2368#elif defined(TARGET_SPARC)
2369#ifdef TARGET_SPARC64
2370 cpu_model = "TI UltraSparc II";
2371#else
2372 cpu_model = "Fujitsu MB86904";
bellard46027c02007-11-08 13:56:19 +00002373#endif
bellardaaed9092007-11-10 15:15:54 +00002374#elif defined(TARGET_MIPS)
2375#if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64)
2376 cpu_model = "20Kc";
2377#else
2378 cpu_model = "24Kf";
2379#endif
2380#elif defined(TARGET_PPC)
bellard7ded4f52007-11-15 15:37:50 +00002381#ifdef TARGET_PPC64
2382 cpu_model = "970";
2383#else
bellardaaed9092007-11-10 15:15:54 +00002384 cpu_model = "750";
bellard7ded4f52007-11-15 15:37:50 +00002385#endif
bellardaaed9092007-11-10 15:15:54 +00002386#else
2387 cpu_model = "any";
2388#endif
2389 }
bellard26a5f132008-05-28 12:30:31 +00002390 cpu_exec_init_all(0);
bellard83fb7ad2004-07-05 21:25:26 +00002391 /* NOTE: we need to init the CPU at this stage to get
2392 qemu_host_page_size */
bellardaaed9092007-11-10 15:15:54 +00002393 env = cpu_init(cpu_model);
2394 if (!env) {
2395 fprintf(stderr, "Unable to find CPU definition\n");
2396 exit(1);
2397 }
pbrookd5975362008-06-07 20:50:51 +00002398 thread_env = env;
ths3b46e622007-09-17 08:09:54 +00002399
bellardb6741952007-11-11 14:46:06 +00002400 if (getenv("QEMU_STRACE")) {
2401 do_strace = 1;
thsb92c47c2007-11-01 00:07:38 +00002402 }
2403
aurel3204a6dfe2009-01-30 19:59:17 +00002404 target_environ = envlist_to_environ(envlist, NULL);
2405 envlist_free(envlist);
thsb12b6a12007-06-17 16:38:39 +00002406
2407 if (loader_exec(filename, argv+optind, target_environ, regs, info) != 0) {
2408 printf("Error loading %s\n", filename);
2409 _exit(1);
2410 }
2411
2412 for (wrk = target_environ; *wrk; wrk++) {
2413 free(*wrk);
bellard31e31b82003-02-18 22:55:36 +00002414 }
ths3b46e622007-09-17 08:09:54 +00002415
thsb12b6a12007-06-17 16:38:39 +00002416 free(target_environ);
2417
blueswir12e77eac2009-01-20 16:57:34 +00002418 if (qemu_log_enabled()) {
2419 log_page_dump();
ths3b46e622007-09-17 08:09:54 +00002420
blueswir12e77eac2009-01-20 16:57:34 +00002421 qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk);
2422 qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code);
2423 qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n",
2424 info->start_code);
2425 qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n",
2426 info->start_data);
2427 qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data);
2428 qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n",
2429 info->start_stack);
2430 qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk);
2431 qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry);
2432 }
bellard31e31b82003-02-18 22:55:36 +00002433
pbrook53a59602006-03-25 19:31:22 +00002434 target_set_brk(info->brk);
bellard31e31b82003-02-18 22:55:36 +00002435 syscall_init();
bellard66fb9762003-03-23 01:06:05 +00002436 signal_init();
bellard31e31b82003-02-18 22:55:36 +00002437
bellard851e67a2003-03-29 16:53:14 +00002438 /* build Task State */
2439 memset(ts, 0, sizeof(TaskState));
pbrook624f7972008-05-31 16:11:38 +00002440 init_task_state(ts);
pbrook978efd62006-06-17 18:30:42 +00002441 ts->info = info;
pbrook624f7972008-05-31 16:11:38 +00002442 env->opaque = ts;
ths3b46e622007-09-17 08:09:54 +00002443
bellardb346ff42003-06-15 20:05:50 +00002444#if defined(TARGET_I386)
bellard2e255c62003-08-21 23:25:21 +00002445 cpu_x86_set_cpl(env, 3);
2446
bellard3802ce22003-07-26 18:02:28 +00002447 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
bellard1bde4652005-01-12 22:34:47 +00002448 env->hflags |= HF_PE_MASK;
2449 if (env->cpuid_features & CPUID_SSE) {
2450 env->cr[4] |= CR4_OSFXSR_MASK;
2451 env->hflags |= HF_OSFXSR_MASK;
2452 }
bellardd2fd1af2007-11-14 18:08:56 +00002453#ifndef TARGET_ABI32
bellard4dbc4222007-11-15 15:27:03 +00002454 /* enable 64 bit mode if possible */
2455 if (!(env->cpuid_ext2_features & CPUID_EXT2_LM)) {
2456 fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n");
2457 exit(1);
2458 }
bellardd2fd1af2007-11-14 18:08:56 +00002459 env->cr[4] |= CR4_PAE_MASK;
bellard4dbc4222007-11-15 15:27:03 +00002460 env->efer |= MSR_EFER_LMA | MSR_EFER_LME;
bellardd2fd1af2007-11-14 18:08:56 +00002461 env->hflags |= HF_LMA_MASK;
2462#endif
bellard1bde4652005-01-12 22:34:47 +00002463
bellard415e5612004-02-03 23:37:12 +00002464 /* flags setup : we activate the IRQs by default as in user mode */
2465 env->eflags |= IF_MASK;
ths3b46e622007-09-17 08:09:54 +00002466
bellard6dbad632003-03-16 18:05:05 +00002467 /* linux register setup */
bellardd2fd1af2007-11-14 18:08:56 +00002468#ifndef TARGET_ABI32
j_mayer84409dd2007-04-06 08:56:50 +00002469 env->regs[R_EAX] = regs->rax;
2470 env->regs[R_EBX] = regs->rbx;
2471 env->regs[R_ECX] = regs->rcx;
2472 env->regs[R_EDX] = regs->rdx;
2473 env->regs[R_ESI] = regs->rsi;
2474 env->regs[R_EDI] = regs->rdi;
2475 env->regs[R_EBP] = regs->rbp;
2476 env->regs[R_ESP] = regs->rsp;
2477 env->eip = regs->rip;
2478#else
bellard0ecfa992003-03-03 14:32:43 +00002479 env->regs[R_EAX] = regs->eax;
2480 env->regs[R_EBX] = regs->ebx;
2481 env->regs[R_ECX] = regs->ecx;
2482 env->regs[R_EDX] = regs->edx;
2483 env->regs[R_ESI] = regs->esi;
2484 env->regs[R_EDI] = regs->edi;
2485 env->regs[R_EBP] = regs->ebp;
2486 env->regs[R_ESP] = regs->esp;
bellarddab2ed92003-03-22 15:23:14 +00002487 env->eip = regs->eip;
j_mayer84409dd2007-04-06 08:56:50 +00002488#endif
bellard31e31b82003-02-18 22:55:36 +00002489
bellardf4beb512003-05-27 23:28:08 +00002490 /* linux interrupt setup */
balroge4415702008-11-10 02:55:33 +00002491#ifndef TARGET_ABI32
2492 env->idt.limit = 511;
2493#else
2494 env->idt.limit = 255;
2495#endif
2496 env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1),
2497 PROT_READ|PROT_WRITE,
2498 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
2499 idt_table = g2h(env->idt.base);
bellardf4beb512003-05-27 23:28:08 +00002500 set_idt(0, 0);
2501 set_idt(1, 0);
2502 set_idt(2, 0);
2503 set_idt(3, 3);
2504 set_idt(4, 3);
bellardec95da62008-05-12 12:23:31 +00002505 set_idt(5, 0);
bellardf4beb512003-05-27 23:28:08 +00002506 set_idt(6, 0);
2507 set_idt(7, 0);
2508 set_idt(8, 0);
2509 set_idt(9, 0);
2510 set_idt(10, 0);
2511 set_idt(11, 0);
2512 set_idt(12, 0);
2513 set_idt(13, 0);
2514 set_idt(14, 0);
2515 set_idt(15, 0);
2516 set_idt(16, 0);
2517 set_idt(17, 0);
2518 set_idt(18, 0);
2519 set_idt(19, 0);
2520 set_idt(0x80, 3);
2521
bellard6dbad632003-03-16 18:05:05 +00002522 /* linux segment setup */
bellard8d18e892007-11-14 15:18:40 +00002523 {
2524 uint64_t *gdt_table;
balroge4415702008-11-10 02:55:33 +00002525 env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES,
2526 PROT_READ|PROT_WRITE,
2527 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
bellard8d18e892007-11-14 15:18:40 +00002528 env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1;
balroge4415702008-11-10 02:55:33 +00002529 gdt_table = g2h(env->gdt.base);
bellardd2fd1af2007-11-14 18:08:56 +00002530#ifdef TARGET_ABI32
bellard8d18e892007-11-14 15:18:40 +00002531 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
2532 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
2533 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
bellardd2fd1af2007-11-14 18:08:56 +00002534#else
2535 /* 64 bit code segment */
2536 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
2537 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
2538 DESC_L_MASK |
2539 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
2540#endif
bellard8d18e892007-11-14 15:18:40 +00002541 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
2542 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
2543 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
2544 }
bellard6dbad632003-03-16 18:05:05 +00002545 cpu_x86_load_seg(env, R_CS, __USER_CS);
bellardd2fd1af2007-11-14 18:08:56 +00002546 cpu_x86_load_seg(env, R_SS, __USER_DS);
2547#ifdef TARGET_ABI32
bellard6dbad632003-03-16 18:05:05 +00002548 cpu_x86_load_seg(env, R_DS, __USER_DS);
2549 cpu_x86_load_seg(env, R_ES, __USER_DS);
bellard6dbad632003-03-16 18:05:05 +00002550 cpu_x86_load_seg(env, R_FS, __USER_DS);
2551 cpu_x86_load_seg(env, R_GS, __USER_DS);
thsd6eb40f2007-06-21 22:55:02 +00002552 /* This hack makes Wine work... */
2553 env->segs[R_FS].selector = 0;
bellardd2fd1af2007-11-14 18:08:56 +00002554#else
2555 cpu_x86_load_seg(env, R_DS, 0);
2556 cpu_x86_load_seg(env, R_ES, 0);
2557 cpu_x86_load_seg(env, R_FS, 0);
2558 cpu_x86_load_seg(env, R_GS, 0);
2559#endif
bellardb346ff42003-06-15 20:05:50 +00002560#elif defined(TARGET_ARM)
2561 {
2562 int i;
bellardb5ff1b32005-11-26 10:38:39 +00002563 cpsr_write(env, regs->uregs[16], 0xffffffff);
bellardb346ff42003-06-15 20:05:50 +00002564 for(i = 0; i < 16; i++) {
2565 env->regs[i] = regs->uregs[i];
2566 }
bellardb346ff42003-06-15 20:05:50 +00002567 }
bellard93ac68b2003-09-30 20:57:29 +00002568#elif defined(TARGET_SPARC)
bellard060366c2004-01-04 15:50:01 +00002569 {
2570 int i;
2571 env->pc = regs->pc;
2572 env->npc = regs->npc;
2573 env->y = regs->y;
2574 for(i = 0; i < 8; i++)
2575 env->gregs[i] = regs->u_regs[i];
2576 for(i = 0; i < 8; i++)
2577 env->regwptr[i] = regs->u_regs[i + 8];
2578 }
bellard67867302003-11-23 17:05:30 +00002579#elif defined(TARGET_PPC)
2580 {
2581 int i;
bellard3fc6c082005-07-02 20:59:34 +00002582
j_mayer0411a972007-10-25 21:35:50 +00002583#if defined(TARGET_PPC64)
2584#if defined(TARGET_ABI32)
2585 env->msr &= ~((target_ulong)1 << MSR_SF);
j_mayere85e7c62007-10-18 19:59:49 +00002586#else
j_mayer0411a972007-10-25 21:35:50 +00002587 env->msr |= (target_ulong)1 << MSR_SF;
2588#endif
j_mayer84409dd2007-04-06 08:56:50 +00002589#endif
bellard67867302003-11-23 17:05:30 +00002590 env->nip = regs->nip;
2591 for(i = 0; i < 32; i++) {
2592 env->gpr[i] = regs->gpr[i];
2593 }
2594 }
pbrooke6e59062006-10-22 00:18:54 +00002595#elif defined(TARGET_M68K)
2596 {
pbrooke6e59062006-10-22 00:18:54 +00002597 env->pc = regs->pc;
2598 env->dregs[0] = regs->d0;
2599 env->dregs[1] = regs->d1;
2600 env->dregs[2] = regs->d2;
2601 env->dregs[3] = regs->d3;
2602 env->dregs[4] = regs->d4;
2603 env->dregs[5] = regs->d5;
2604 env->dregs[6] = regs->d6;
2605 env->dregs[7] = regs->d7;
2606 env->aregs[0] = regs->a0;
2607 env->aregs[1] = regs->a1;
2608 env->aregs[2] = regs->a2;
2609 env->aregs[3] = regs->a3;
2610 env->aregs[4] = regs->a4;
2611 env->aregs[5] = regs->a5;
2612 env->aregs[6] = regs->a6;
2613 env->aregs[7] = regs->usp;
2614 env->sr = regs->sr;
2615 ts->sim_syscalls = 1;
2616 }
bellard048f6b42005-11-26 18:47:20 +00002617#elif defined(TARGET_MIPS)
2618 {
2619 int i;
2620
2621 for(i = 0; i < 32; i++) {
thsb5dc7732008-06-27 10:02:35 +00002622 env->active_tc.gpr[i] = regs->regs[i];
bellard048f6b42005-11-26 18:47:20 +00002623 }
thsb5dc7732008-06-27 10:02:35 +00002624 env->active_tc.PC = regs->cp0_epc;
bellard048f6b42005-11-26 18:47:20 +00002625 }
bellardfdf9b3e2006-04-27 21:07:38 +00002626#elif defined(TARGET_SH4)
2627 {
2628 int i;
2629
2630 for(i = 0; i < 16; i++) {
2631 env->gregs[i] = regs->regs[i];
2632 }
2633 env->pc = regs->pc;
2634 }
j_mayer7a3148a2007-04-05 07:13:51 +00002635#elif defined(TARGET_ALPHA)
2636 {
2637 int i;
2638
2639 for(i = 0; i < 28; i++) {
blueswir1992f48a2007-10-14 16:27:31 +00002640 env->ir[i] = ((abi_ulong *)regs)[i];
j_mayer7a3148a2007-04-05 07:13:51 +00002641 }
2642 env->ipr[IPR_USP] = regs->usp;
2643 env->ir[30] = regs->usp;
2644 env->pc = regs->pc;
2645 env->unique = regs->unique;
2646 }
ths48733d12007-10-08 13:36:46 +00002647#elif defined(TARGET_CRIS)
2648 {
2649 env->regs[0] = regs->r0;
2650 env->regs[1] = regs->r1;
2651 env->regs[2] = regs->r2;
2652 env->regs[3] = regs->r3;
2653 env->regs[4] = regs->r4;
2654 env->regs[5] = regs->r5;
2655 env->regs[6] = regs->r6;
2656 env->regs[7] = regs->r7;
2657 env->regs[8] = regs->r8;
2658 env->regs[9] = regs->r9;
2659 env->regs[10] = regs->r10;
2660 env->regs[11] = regs->r11;
2661 env->regs[12] = regs->r12;
2662 env->regs[13] = regs->r13;
2663 env->regs[14] = info->start_stack;
2664 env->regs[15] = regs->acr;
2665 env->pc = regs->erp;
2666 }
bellardb346ff42003-06-15 20:05:50 +00002667#else
2668#error unsupported target CPU
2669#endif
bellard31e31b82003-02-18 22:55:36 +00002670
pbrooka87295e2007-05-26 15:09:38 +00002671#if defined(TARGET_ARM) || defined(TARGET_M68K)
2672 ts->stack_base = info->start_stack;
2673 ts->heap_base = info->brk;
2674 /* This will be filled in on the first SYS_HEAPINFO call. */
2675 ts->heap_limit = 0;
2676#endif
2677
bellard74c33be2005-10-30 21:01:05 +00002678 if (gdbstub_port) {
2679 gdbserver_start (gdbstub_port);
bellard1fddef42005-04-17 19:16:13 +00002680 gdb_handlesig(env, 0);
2681 }
bellard1b6b0292003-03-22 17:31:38 +00002682 cpu_loop(env);
2683 /* never exits */
bellard31e31b82003-02-18 22:55:36 +00002684 return 0;
2685}