blob: cabc9e1a0e74e2e0ba01a4408a2ec43af73f7c8a [file] [log] [blame]
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
Blue Swirl8167ee82009-07-16 20:47:01 +000017 * along with this program; if not, see <http://www.gnu.org/licenses/>.
bellard31e31b82003-02-18 22:55:36 +000018 */
19#include <stdlib.h>
20#include <stdio.h>
21#include <stdarg.h>
bellard04369ff2003-03-20 22:33:23 +000022#include <string.h>
bellard31e31b82003-02-18 22:55:36 +000023#include <errno.h>
bellard0ecfa992003-03-03 14:32:43 +000024#include <unistd.h>
balroge4415702008-11-10 02:55:33 +000025#include <sys/mman.h>
Mika Westerbergedf8e2a2009-04-07 09:57:11 +030026#include <sys/syscall.h>
Richard Henderson703e0e82010-03-19 14:21:13 -070027#include <sys/resource.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"
Paolo Bonzini1de7afc2012-12-17 18:20:00 +010031#include "qemu/cache-utils.h"
Blue Swirl2b41f102011-06-19 20:38:22 +000032#include "cpu.h"
Richard Henderson9002ec72010-05-06 08:50:41 -070033#include "tcg.h"
Paolo Bonzini1de7afc2012-12-17 18:20:00 +010034#include "qemu/timer.h"
35#include "qemu/envlist.h"
Paul Brookd8fd2952012-03-30 18:02:50 +010036#include "elf.h"
aurel3204a6dfe2009-01-30 19:59:17 +000037
aurel32d088d662009-01-30 20:09:01 +000038char *exec_path;
39
aurel321b530a62009-04-05 20:08:59 +000040int singlestep;
Johannes Schauerfc9c5412011-08-06 08:54:12 +020041const char *filename;
42const char *argv0;
43int gdbstub_port;
44envlist_t *envlist;
Andreas Färber51fb2562013-07-02 18:26:11 +020045static const char *cpu_model;
Paul Brook379f6692009-07-17 12:48:08 +010046unsigned long mmap_min_addr;
Richard Henderson14f24e12010-03-10 15:39:07 -080047#if defined(CONFIG_USE_GUEST_BASE)
Paul Brook379f6692009-07-17 12:48:08 +010048unsigned long guest_base;
49int have_guest_base;
Alexander Graf288e65b2011-12-14 00:33:28 +010050#if (TARGET_LONG_BITS == 32) && (HOST_LONG_BITS == 64)
51/*
52 * When running 32-on-64 we should make sure we can fit all of the possible
53 * guest address space into a contiguous chunk of virtual host memory.
54 *
55 * This way we will never overlap with our own libraries or binaries or stack
56 * or anything else that QEMU maps.
57 */
Alexander Graf314992b2013-01-03 14:17:18 +010058# ifdef TARGET_MIPS
59/* MIPS only supports 31 bits of virtual address space for user space */
60unsigned long reserved_va = 0x77000000;
61# else
Alexander Graf288e65b2011-12-14 00:33:28 +010062unsigned long reserved_va = 0xf7000000;
Alexander Graf314992b2013-01-03 14:17:18 +010063# endif
Alexander Graf288e65b2011-12-14 00:33:28 +010064#else
Paul Brook68a1c812010-05-29 02:27:35 +010065unsigned long reserved_va;
Paul Brook379f6692009-07-17 12:48:08 +010066#endif
Alexander Graf288e65b2011-12-14 00:33:28 +010067#endif
aurel321b530a62009-04-05 20:08:59 +000068
Johannes Schauerfc9c5412011-08-06 08:54:12 +020069static void usage(void);
70
Paolo Bonzini7ee28222010-05-26 16:08:22 +020071static const char *interp_prefix = CONFIG_QEMU_INTERP_PREFIX;
pbrookc5937222006-05-14 11:30:38 +000072const char *qemu_uname_release = CONFIG_UNAME_RELEASE;
bellard586314f2003-03-03 15:02:29 +000073
bellard9de5e442003-03-23 16:49:39 +000074/* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
75 we allocate a bigger stack. Need a better solution, for example
76 by remapping the process stack directly at the right place */
Richard Henderson703e0e82010-03-19 14:21:13 -070077unsigned long guest_stack_size = 8 * 1024 * 1024UL;
bellard31e31b82003-02-18 22:55:36 +000078
79void gemu_log(const char *fmt, ...)
80{
81 va_list ap;
82
83 va_start(ap, fmt);
84 vfprintf(stderr, fmt, ap);
85 va_end(ap);
86}
87
blueswir18fcd3692008-08-17 20:26:25 +000088#if defined(TARGET_I386)
Andreas Färber05390242012-02-25 03:37:53 +010089int cpu_get_pic_interrupt(CPUX86State *env)
bellard92ccca62003-06-24 13:30:31 +000090{
91 return -1;
92}
blueswir18fcd3692008-08-17 20:26:25 +000093#endif
bellard92ccca62003-06-24 13:30:31 +000094
pbrookd5975362008-06-07 20:50:51 +000095/***********************************************************/
96/* Helper routines for implementing atomic operations. */
97
98/* To implement exclusive operations we force all cpus to syncronise.
99 We don't require a full sync, only that no cpus are executing guest code.
100 The alternative is to map target atomic ops onto host equivalents,
101 which requires quite a lot of per host/target work. */
pbrookc2764712009-03-07 15:24:59 +0000102static pthread_mutex_t cpu_list_mutex = PTHREAD_MUTEX_INITIALIZER;
pbrookd5975362008-06-07 20:50:51 +0000103static pthread_mutex_t exclusive_lock = PTHREAD_MUTEX_INITIALIZER;
104static pthread_cond_t exclusive_cond = PTHREAD_COND_INITIALIZER;
105static pthread_cond_t exclusive_resume = PTHREAD_COND_INITIALIZER;
106static int pending_cpus;
107
108/* Make sure everything is in a consistent state for calling fork(). */
109void fork_start(void)
110{
Evgeny Voevodin5e5f07e2013-02-01 01:47:23 +0700111 pthread_mutex_lock(&tcg_ctx.tb_ctx.tb_lock);
pbrookd5975362008-06-07 20:50:51 +0000112 pthread_mutex_lock(&exclusive_lock);
Riku Voipiod032d1b2009-12-04 15:16:31 +0200113 mmap_fork_start();
pbrookd5975362008-06-07 20:50:51 +0000114}
115
116void fork_end(int child)
117{
Riku Voipiod032d1b2009-12-04 15:16:31 +0200118 mmap_fork_end(child);
pbrookd5975362008-06-07 20:50:51 +0000119 if (child) {
Andreas Färberbdc44642013-06-24 23:50:24 +0200120 CPUState *cpu, *next_cpu;
pbrookd5975362008-06-07 20:50:51 +0000121 /* Child processes created by fork() only have a single thread.
122 Discard information about the parent threads. */
Andreas Färberbdc44642013-06-24 23:50:24 +0200123 CPU_FOREACH_SAFE(cpu, next_cpu) {
124 if (cpu != thread_cpu) {
125 QTAILQ_REMOVE(&cpus, thread_cpu, node);
126 }
127 }
pbrookd5975362008-06-07 20:50:51 +0000128 pending_cpus = 0;
129 pthread_mutex_init(&exclusive_lock, NULL);
pbrookc2764712009-03-07 15:24:59 +0000130 pthread_mutex_init(&cpu_list_mutex, NULL);
pbrookd5975362008-06-07 20:50:51 +0000131 pthread_cond_init(&exclusive_cond, NULL);
132 pthread_cond_init(&exclusive_resume, NULL);
Evgeny Voevodin5e5f07e2013-02-01 01:47:23 +0700133 pthread_mutex_init(&tcg_ctx.tb_ctx.tb_lock, NULL);
Andreas Färbera2247f82013-06-09 19:47:04 +0200134 gdbserver_fork((CPUArchState *)thread_cpu->env_ptr);
pbrookd5975362008-06-07 20:50:51 +0000135 } else {
136 pthread_mutex_unlock(&exclusive_lock);
Evgeny Voevodin5e5f07e2013-02-01 01:47:23 +0700137 pthread_mutex_unlock(&tcg_ctx.tb_ctx.tb_lock);
pbrookd5975362008-06-07 20:50:51 +0000138 }
pbrookd5975362008-06-07 20:50:51 +0000139}
140
141/* Wait for pending exclusive operations to complete. The exclusive lock
142 must be held. */
143static inline void exclusive_idle(void)
144{
145 while (pending_cpus) {
146 pthread_cond_wait(&exclusive_resume, &exclusive_lock);
147 }
148}
149
150/* Start an exclusive operation.
151 Must only be called from outside cpu_arm_exec. */
152static inline void start_exclusive(void)
153{
Andreas Färber0315c312012-12-17 07:34:52 +0100154 CPUState *other_cpu;
155
pbrookd5975362008-06-07 20:50:51 +0000156 pthread_mutex_lock(&exclusive_lock);
157 exclusive_idle();
158
159 pending_cpus = 1;
160 /* Make all other cpus stop executing. */
Andreas Färberbdc44642013-06-24 23:50:24 +0200161 CPU_FOREACH(other_cpu) {
Andreas Färber0315c312012-12-17 07:34:52 +0100162 if (other_cpu->running) {
pbrookd5975362008-06-07 20:50:51 +0000163 pending_cpus++;
Andreas Färber60a3e172013-05-17 18:26:54 +0200164 cpu_exit(other_cpu);
pbrookd5975362008-06-07 20:50:51 +0000165 }
166 }
167 if (pending_cpus > 1) {
168 pthread_cond_wait(&exclusive_cond, &exclusive_lock);
169 }
170}
171
172/* Finish an exclusive operation. */
173static inline void end_exclusive(void)
174{
175 pending_cpus = 0;
176 pthread_cond_broadcast(&exclusive_resume);
177 pthread_mutex_unlock(&exclusive_lock);
178}
179
180/* Wait for exclusive ops to finish, and begin cpu execution. */
Andreas Färber0315c312012-12-17 07:34:52 +0100181static inline void cpu_exec_start(CPUState *cpu)
pbrookd5975362008-06-07 20:50:51 +0000182{
183 pthread_mutex_lock(&exclusive_lock);
184 exclusive_idle();
Andreas Färber0315c312012-12-17 07:34:52 +0100185 cpu->running = true;
pbrookd5975362008-06-07 20:50:51 +0000186 pthread_mutex_unlock(&exclusive_lock);
187}
188
189/* Mark cpu as not executing, and release pending exclusive ops. */
Andreas Färber0315c312012-12-17 07:34:52 +0100190static inline void cpu_exec_end(CPUState *cpu)
pbrookd5975362008-06-07 20:50:51 +0000191{
192 pthread_mutex_lock(&exclusive_lock);
Andreas Färber0315c312012-12-17 07:34:52 +0100193 cpu->running = false;
pbrookd5975362008-06-07 20:50:51 +0000194 if (pending_cpus > 1) {
195 pending_cpus--;
196 if (pending_cpus == 1) {
197 pthread_cond_signal(&exclusive_cond);
198 }
199 }
200 exclusive_idle();
201 pthread_mutex_unlock(&exclusive_lock);
202}
pbrookc2764712009-03-07 15:24:59 +0000203
204void cpu_list_lock(void)
205{
206 pthread_mutex_lock(&cpu_list_mutex);
207}
208
209void cpu_list_unlock(void)
210{
211 pthread_mutex_unlock(&cpu_list_mutex);
212}
pbrookd5975362008-06-07 20:50:51 +0000213
214
bellarda541f292004-04-12 20:39:29 +0000215#ifdef TARGET_I386
216/***********************************************************/
217/* CPUX86 core interface */
218
Andreas Färber05390242012-02-25 03:37:53 +0100219void cpu_smm_update(CPUX86State *env)
bellard02a16022006-09-24 18:48:23 +0000220{
221}
222
bellard28ab0e22004-05-20 14:02:14 +0000223uint64_t cpu_get_tsc(CPUX86State *env)
224{
225 return cpu_get_real_ticks();
226}
227
ths5fafdf22007-09-16 21:08:06 +0000228static void write_dt(void *ptr, unsigned long addr, unsigned long limit,
bellardf4beb512003-05-27 23:28:08 +0000229 int flags)
bellard6dbad632003-03-16 18:05:05 +0000230{
bellardf4beb512003-05-27 23:28:08 +0000231 unsigned int e1, e2;
pbrook53a59602006-03-25 19:31:22 +0000232 uint32_t *p;
bellard6dbad632003-03-16 18:05:05 +0000233 e1 = (addr << 16) | (limit & 0xffff);
234 e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000);
bellardf4beb512003-05-27 23:28:08 +0000235 e2 |= flags;
pbrook53a59602006-03-25 19:31:22 +0000236 p = ptr;
malcd538e8f2008-08-20 22:39:26 +0000237 p[0] = tswap32(e1);
238 p[1] = tswap32(e2);
bellardf4beb512003-05-27 23:28:08 +0000239}
240
balroge4415702008-11-10 02:55:33 +0000241static uint64_t *idt_table;
blueswir1eb38c522008-09-06 17:47:39 +0000242#ifdef TARGET_X86_64
bellardd2fd1af2007-11-14 18:08:56 +0000243static void set_gate64(void *ptr, unsigned int type, unsigned int dpl,
244 uint64_t addr, unsigned int sel)
245{
bellard4dbc4222007-11-15 15:27:03 +0000246 uint32_t *p, e1, e2;
bellardd2fd1af2007-11-14 18:08:56 +0000247 e1 = (addr & 0xffff) | (sel << 16);
248 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
249 p = ptr;
bellard4dbc4222007-11-15 15:27:03 +0000250 p[0] = tswap32(e1);
251 p[1] = tswap32(e2);
252 p[2] = tswap32(addr >> 32);
253 p[3] = 0;
bellardd2fd1af2007-11-14 18:08:56 +0000254}
255/* only dpl matters as we do only user space emulation */
256static void set_idt(int n, unsigned int dpl)
257{
258 set_gate64(idt_table + n * 2, 0, dpl, 0, 0);
259}
260#else
ths5fafdf22007-09-16 21:08:06 +0000261static void set_gate(void *ptr, unsigned int type, unsigned int dpl,
bellardd2fd1af2007-11-14 18:08:56 +0000262 uint32_t addr, unsigned int sel)
bellardf4beb512003-05-27 23:28:08 +0000263{
bellard4dbc4222007-11-15 15:27:03 +0000264 uint32_t *p, e1, e2;
bellardf4beb512003-05-27 23:28:08 +0000265 e1 = (addr & 0xffff) | (sel << 16);
266 e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8);
pbrook53a59602006-03-25 19:31:22 +0000267 p = ptr;
bellard4dbc4222007-11-15 15:27:03 +0000268 p[0] = tswap32(e1);
269 p[1] = tswap32(e2);
bellard6dbad632003-03-16 18:05:05 +0000270}
271
bellardf4beb512003-05-27 23:28:08 +0000272/* only dpl matters as we do only user space emulation */
273static void set_idt(int n, unsigned int dpl)
274{
275 set_gate(idt_table + n, 0, dpl, 0, 0);
276}
bellardd2fd1af2007-11-14 18:08:56 +0000277#endif
bellard31e31b82003-02-18 22:55:36 +0000278
bellard89e957e2003-05-10 12:33:15 +0000279void cpu_loop(CPUX86State *env)
bellard1b6b0292003-03-22 17:31:38 +0000280{
Andreas Färberdb6b81d2013-06-27 19:49:31 +0200281 CPUState *cs = CPU(x86_env_get_cpu(env));
bellardbc8a22c2003-03-30 21:02:40 +0000282 int trapnr;
blueswir1992f48a2007-10-14 16:27:31 +0000283 abi_ulong pc;
Anthony Liguoric227f092009-10-01 16:12:16 -0500284 target_siginfo_t info;
bellard851e67a2003-03-29 16:53:14 +0000285
bellard1b6b0292003-03-22 17:31:38 +0000286 for(;;) {
bellardbc8a22c2003-03-30 21:02:40 +0000287 trapnr = cpu_x86_exec(env);
bellardbc8a22c2003-03-30 21:02:40 +0000288 switch(trapnr) {
bellardf4beb512003-05-27 23:28:08 +0000289 case 0x80:
bellardd2fd1af2007-11-14 18:08:56 +0000290 /* linux syscall from int $0x80 */
ths5fafdf22007-09-16 21:08:06 +0000291 env->regs[R_EAX] = do_syscall(env,
292 env->regs[R_EAX],
bellardf4beb512003-05-27 23:28:08 +0000293 env->regs[R_EBX],
294 env->regs[R_ECX],
295 env->regs[R_EDX],
296 env->regs[R_ESI],
297 env->regs[R_EDI],
Peter Maydell5945cfc2011-06-16 17:37:13 +0100298 env->regs[R_EBP],
299 0, 0);
bellardf4beb512003-05-27 23:28:08 +0000300 break;
bellardd2fd1af2007-11-14 18:08:56 +0000301#ifndef TARGET_ABI32
302 case EXCP_SYSCALL:
Stefan Weil5ba18542011-05-07 22:20:03 +0200303 /* linux syscall from syscall instruction */
bellardd2fd1af2007-11-14 18:08:56 +0000304 env->regs[R_EAX] = do_syscall(env,
305 env->regs[R_EAX],
306 env->regs[R_EDI],
307 env->regs[R_ESI],
308 env->regs[R_EDX],
309 env->regs[10],
310 env->regs[8],
Peter Maydell5945cfc2011-06-16 17:37:13 +0100311 env->regs[9],
312 0, 0);
bellardd2fd1af2007-11-14 18:08:56 +0000313 env->eip = env->exception_next_eip;
314 break;
315#endif
bellardf4beb512003-05-27 23:28:08 +0000316 case EXCP0B_NOSEG:
317 case EXCP0C_STACK:
318 info.si_signo = SIGBUS;
319 info.si_errno = 0;
320 info.si_code = TARGET_SI_KERNEL;
321 info._sifields._sigfault._addr = 0;
pbrook624f7972008-05-31 16:11:38 +0000322 queue_signal(env, info.si_signo, &info);
bellardf4beb512003-05-27 23:28:08 +0000323 break;
bellard1b6b0292003-03-22 17:31:38 +0000324 case EXCP0D_GPF:
bellardd2fd1af2007-11-14 18:08:56 +0000325 /* XXX: potential problem if ABI32 */
j_mayer84409dd2007-04-06 08:56:50 +0000326#ifndef TARGET_X86_64
bellard851e67a2003-03-29 16:53:14 +0000327 if (env->eflags & VM_MASK) {
bellard89e957e2003-05-10 12:33:15 +0000328 handle_vm86_fault(env);
j_mayer84409dd2007-04-06 08:56:50 +0000329 } else
330#endif
331 {
bellardf4beb512003-05-27 23:28:08 +0000332 info.si_signo = SIGSEGV;
333 info.si_errno = 0;
334 info.si_code = TARGET_SI_KERNEL;
335 info._sifields._sigfault._addr = 0;
pbrook624f7972008-05-31 16:11:38 +0000336 queue_signal(env, info.si_signo, &info);
bellard1b6b0292003-03-22 17:31:38 +0000337 }
338 break;
bellardb689bc52003-05-08 15:33:33 +0000339 case EXCP0E_PAGE:
340 info.si_signo = SIGSEGV;
341 info.si_errno = 0;
342 if (!(env->error_code & 1))
343 info.si_code = TARGET_SEGV_MAPERR;
344 else
345 info.si_code = TARGET_SEGV_ACCERR;
bellard970a87a2003-06-21 13:13:25 +0000346 info._sifields._sigfault._addr = env->cr[2];
pbrook624f7972008-05-31 16:11:38 +0000347 queue_signal(env, info.si_signo, &info);
bellardb689bc52003-05-08 15:33:33 +0000348 break;
bellard9de5e442003-03-23 16:49:39 +0000349 case EXCP00_DIVZ:
j_mayer84409dd2007-04-06 08:56:50 +0000350#ifndef TARGET_X86_64
bellardbc8a22c2003-03-30 21:02:40 +0000351 if (env->eflags & VM_MASK) {
bellard447db212003-05-10 15:10:36 +0000352 handle_vm86_trap(env, trapnr);
j_mayer84409dd2007-04-06 08:56:50 +0000353 } else
354#endif
355 {
bellardbc8a22c2003-03-30 21:02:40 +0000356 /* division by zero */
357 info.si_signo = SIGFPE;
358 info.si_errno = 0;
359 info.si_code = TARGET_FPE_INTDIV;
360 info._sifields._sigfault._addr = env->eip;
pbrook624f7972008-05-31 16:11:38 +0000361 queue_signal(env, info.si_signo, &info);
bellardbc8a22c2003-03-30 21:02:40 +0000362 }
bellard9de5e442003-03-23 16:49:39 +0000363 break;
aliguori01df0402008-11-18 21:08:15 +0000364 case EXCP01_DB:
bellard447db212003-05-10 15:10:36 +0000365 case EXCP03_INT3:
j_mayer84409dd2007-04-06 08:56:50 +0000366#ifndef TARGET_X86_64
bellard447db212003-05-10 15:10:36 +0000367 if (env->eflags & VM_MASK) {
368 handle_vm86_trap(env, trapnr);
j_mayer84409dd2007-04-06 08:56:50 +0000369 } else
370#endif
371 {
bellard447db212003-05-10 15:10:36 +0000372 info.si_signo = SIGTRAP;
373 info.si_errno = 0;
aliguori01df0402008-11-18 21:08:15 +0000374 if (trapnr == EXCP01_DB) {
bellard447db212003-05-10 15:10:36 +0000375 info.si_code = TARGET_TRAP_BRKPT;
376 info._sifields._sigfault._addr = env->eip;
377 } else {
378 info.si_code = TARGET_SI_KERNEL;
379 info._sifields._sigfault._addr = 0;
380 }
pbrook624f7972008-05-31 16:11:38 +0000381 queue_signal(env, info.si_signo, &info);
bellard447db212003-05-10 15:10:36 +0000382 }
383 break;
bellard9de5e442003-03-23 16:49:39 +0000384 case EXCP04_INTO:
385 case EXCP05_BOUND:
j_mayer84409dd2007-04-06 08:56:50 +0000386#ifndef TARGET_X86_64
bellardbc8a22c2003-03-30 21:02:40 +0000387 if (env->eflags & VM_MASK) {
bellard447db212003-05-10 15:10:36 +0000388 handle_vm86_trap(env, trapnr);
j_mayer84409dd2007-04-06 08:56:50 +0000389 } else
390#endif
391 {
bellardbc8a22c2003-03-30 21:02:40 +0000392 info.si_signo = SIGSEGV;
393 info.si_errno = 0;
bellardb689bc52003-05-08 15:33:33 +0000394 info.si_code = TARGET_SI_KERNEL;
bellardbc8a22c2003-03-30 21:02:40 +0000395 info._sifields._sigfault._addr = 0;
pbrook624f7972008-05-31 16:11:38 +0000396 queue_signal(env, info.si_signo, &info);
bellardbc8a22c2003-03-30 21:02:40 +0000397 }
bellard9de5e442003-03-23 16:49:39 +0000398 break;
399 case EXCP06_ILLOP:
400 info.si_signo = SIGILL;
401 info.si_errno = 0;
402 info.si_code = TARGET_ILL_ILLOPN;
403 info._sifields._sigfault._addr = env->eip;
pbrook624f7972008-05-31 16:11:38 +0000404 queue_signal(env, info.si_signo, &info);
bellard9de5e442003-03-23 16:49:39 +0000405 break;
406 case EXCP_INTERRUPT:
407 /* just indicate that signals should be handled asap */
408 break;
bellard1fddef42005-04-17 19:16:13 +0000409 case EXCP_DEBUG:
410 {
411 int sig;
412
Andreas Färberdb6b81d2013-06-27 19:49:31 +0200413 sig = gdb_handlesig(cs, TARGET_SIGTRAP);
bellard1fddef42005-04-17 19:16:13 +0000414 if (sig)
415 {
416 info.si_signo = sig;
417 info.si_errno = 0;
418 info.si_code = TARGET_TRAP_BRKPT;
pbrook624f7972008-05-31 16:11:38 +0000419 queue_signal(env, info.si_signo, &info);
bellard1fddef42005-04-17 19:16:13 +0000420 }
421 }
422 break;
bellard1b6b0292003-03-22 17:31:38 +0000423 default:
bellard970a87a2003-06-21 13:13:25 +0000424 pc = env->segs[R_CS].base + env->eip;
ths5fafdf22007-09-16 21:08:06 +0000425 fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
bellardbc8a22c2003-03-30 21:02:40 +0000426 (long)pc, trapnr);
bellard1b6b0292003-03-22 17:31:38 +0000427 abort();
428 }
bellard66fb9762003-03-23 01:06:05 +0000429 process_pending_signals(env);
bellard1b6b0292003-03-22 17:31:38 +0000430 }
431}
bellardb346ff42003-06-15 20:05:50 +0000432#endif
433
434#ifdef TARGET_ARM
435
Paul Brookd8fd2952012-03-30 18:02:50 +0100436#define get_user_code_u32(x, gaddr, doswap) \
437 ({ abi_long __r = get_user_u32((x), (gaddr)); \
438 if (!__r && (doswap)) { \
439 (x) = bswap32(x); \
440 } \
441 __r; \
442 })
443
444#define get_user_code_u16(x, gaddr, doswap) \
445 ({ abi_long __r = get_user_u16((x), (gaddr)); \
446 if (!__r && (doswap)) { \
447 (x) = bswap16(x); \
448 } \
449 __r; \
450 })
451
Peter Maydell1861c452013-09-03 20:12:13 +0100452#ifdef TARGET_ABI32
453/* Commpage handling -- there is no commpage for AArch64 */
454
Dr. David Alan Gilbert97cc7562011-08-31 17:24:34 +0100455/*
456 * See the Linux kernel's Documentation/arm/kernel_user_helpers.txt
457 * Input:
458 * r0 = pointer to oldval
459 * r1 = pointer to newval
460 * r2 = pointer to target value
461 *
462 * Output:
463 * r0 = 0 if *ptr was changed, non-0 if no exchange happened
464 * C set if *ptr was changed, clear if no exchange happened
465 *
466 * Note segv's in kernel helpers are a bit tricky, we can set the
467 * data address sensibly but the PC address is just the entry point.
468 */
469static void arm_kernel_cmpxchg64_helper(CPUARMState *env)
470{
471 uint64_t oldval, newval, val;
472 uint32_t addr, cpsr;
473 target_siginfo_t info;
474
475 /* Based on the 32 bit code in do_kernel_trap */
476
477 /* XXX: This only works between threads, not between processes.
478 It's probably possible to implement this with native host
479 operations. However things like ldrex/strex are much harder so
480 there's not much point trying. */
481 start_exclusive();
482 cpsr = cpsr_read(env);
483 addr = env->regs[2];
484
485 if (get_user_u64(oldval, env->regs[0])) {
486 env->cp15.c6_data = env->regs[0];
487 goto segv;
488 };
489
490 if (get_user_u64(newval, env->regs[1])) {
491 env->cp15.c6_data = env->regs[1];
492 goto segv;
493 };
494
495 if (get_user_u64(val, addr)) {
496 env->cp15.c6_data = addr;
497 goto segv;
498 }
499
500 if (val == oldval) {
501 val = newval;
502
503 if (put_user_u64(val, addr)) {
504 env->cp15.c6_data = addr;
505 goto segv;
506 };
507
508 env->regs[0] = 0;
509 cpsr |= CPSR_C;
510 } else {
511 env->regs[0] = -1;
512 cpsr &= ~CPSR_C;
513 }
514 cpsr_write(env, cpsr, CPSR_C);
515 end_exclusive();
516 return;
517
518segv:
519 end_exclusive();
520 /* We get the PC of the entry address - which is as good as anything,
521 on a real kernel what you get depends on which mode it uses. */
522 info.si_signo = SIGSEGV;
523 info.si_errno = 0;
524 /* XXX: check env->error_code */
525 info.si_code = TARGET_SEGV_MAPERR;
526 info._sifields._sigfault._addr = env->cp15.c6_data;
527 queue_signal(env, info.si_signo, &info);
528
529 end_exclusive();
530}
531
pbrookfbb4a2e2008-05-29 00:20:44 +0000532/* Handle a jump to the kernel code page. */
533static int
534do_kernel_trap(CPUARMState *env)
535{
536 uint32_t addr;
537 uint32_t cpsr;
538 uint32_t val;
539
540 switch (env->regs[15]) {
541 case 0xffff0fa0: /* __kernel_memory_barrier */
542 /* ??? No-op. Will need to do better for SMP. */
543 break;
544 case 0xffff0fc0: /* __kernel_cmpxchg */
pbrookd5975362008-06-07 20:50:51 +0000545 /* XXX: This only works between threads, not between processes.
546 It's probably possible to implement this with native host
547 operations. However things like ldrex/strex are much harder so
548 there's not much point trying. */
549 start_exclusive();
pbrookfbb4a2e2008-05-29 00:20:44 +0000550 cpsr = cpsr_read(env);
551 addr = env->regs[2];
552 /* FIXME: This should SEGV if the access fails. */
553 if (get_user_u32(val, addr))
554 val = ~env->regs[0];
555 if (val == env->regs[0]) {
556 val = env->regs[1];
557 /* FIXME: Check for segfaults. */
558 put_user_u32(val, addr);
559 env->regs[0] = 0;
560 cpsr |= CPSR_C;
561 } else {
562 env->regs[0] = -1;
563 cpsr &= ~CPSR_C;
564 }
565 cpsr_write(env, cpsr, CPSR_C);
pbrookd5975362008-06-07 20:50:51 +0000566 end_exclusive();
pbrookfbb4a2e2008-05-29 00:20:44 +0000567 break;
568 case 0xffff0fe0: /* __kernel_get_tls */
Peter Maydelle4fe8302014-01-04 22:15:45 +0000569 env->regs[0] = env->cp15.tpidrro_el0;
pbrookfbb4a2e2008-05-29 00:20:44 +0000570 break;
Dr. David Alan Gilbert97cc7562011-08-31 17:24:34 +0100571 case 0xffff0f60: /* __kernel_cmpxchg64 */
572 arm_kernel_cmpxchg64_helper(env);
573 break;
574
pbrookfbb4a2e2008-05-29 00:20:44 +0000575 default:
576 return 1;
577 }
578 /* Jump back to the caller. */
579 addr = env->regs[14];
580 if (addr & 1) {
581 env->thumb = 1;
582 addr &= ~1;
583 }
584 env->regs[15] = addr;
585
586 return 0;
587}
588
Michael Matzfa2ef212014-01-04 22:15:47 +0000589/* Store exclusive handling for AArch32 */
Paul Brook426f5ab2009-11-22 21:35:13 +0000590static int do_strex(CPUARMState *env)
591{
Peter Maydell03d05e22014-01-04 22:15:47 +0000592 uint64_t val;
Paul Brook426f5ab2009-11-22 21:35:13 +0000593 int size;
594 int rc = 1;
595 int segv = 0;
596 uint32_t addr;
597 start_exclusive();
Peter Maydell03d05e22014-01-04 22:15:47 +0000598 if (env->exclusive_addr != env->exclusive_test) {
Paul Brook426f5ab2009-11-22 21:35:13 +0000599 goto fail;
600 }
Peter Maydell03d05e22014-01-04 22:15:47 +0000601 /* We know we're always AArch32 so the address is in uint32_t range
602 * unless it was the -1 exclusive-monitor-lost value (which won't
603 * match exclusive_test above).
604 */
605 assert(extract64(env->exclusive_addr, 32, 32) == 0);
606 addr = env->exclusive_addr;
Paul Brook426f5ab2009-11-22 21:35:13 +0000607 size = env->exclusive_info & 0xf;
608 switch (size) {
609 case 0:
610 segv = get_user_u8(val, addr);
611 break;
612 case 1:
613 segv = get_user_u16(val, addr);
614 break;
615 case 2:
616 case 3:
617 segv = get_user_u32(val, addr);
618 break;
Aurelien Jarnof7001a32009-12-24 00:17:12 +0100619 default:
620 abort();
Paul Brook426f5ab2009-11-22 21:35:13 +0000621 }
622 if (segv) {
623 env->cp15.c6_data = addr;
624 goto done;
625 }
Paul Brook426f5ab2009-11-22 21:35:13 +0000626 if (size == 3) {
Peter Maydell03d05e22014-01-04 22:15:47 +0000627 uint32_t valhi;
628 segv = get_user_u32(valhi, addr + 4);
Paul Brook426f5ab2009-11-22 21:35:13 +0000629 if (segv) {
630 env->cp15.c6_data = addr + 4;
631 goto done;
632 }
Peter Maydell03d05e22014-01-04 22:15:47 +0000633 val = deposit64(val, 32, 32, valhi);
Paul Brook426f5ab2009-11-22 21:35:13 +0000634 }
Peter Maydell03d05e22014-01-04 22:15:47 +0000635 if (val != env->exclusive_val) {
636 goto fail;
637 }
638
Paul Brook426f5ab2009-11-22 21:35:13 +0000639 val = env->regs[(env->exclusive_info >> 8) & 0xf];
640 switch (size) {
641 case 0:
642 segv = put_user_u8(val, addr);
643 break;
644 case 1:
645 segv = put_user_u16(val, addr);
646 break;
647 case 2:
648 case 3:
649 segv = put_user_u32(val, addr);
650 break;
651 }
652 if (segv) {
653 env->cp15.c6_data = addr;
654 goto done;
655 }
656 if (size == 3) {
657 val = env->regs[(env->exclusive_info >> 12) & 0xf];
Peter Maydell2c9adbd2010-12-07 15:37:34 +0000658 segv = put_user_u32(val, addr + 4);
Paul Brook426f5ab2009-11-22 21:35:13 +0000659 if (segv) {
660 env->cp15.c6_data = addr + 4;
661 goto done;
662 }
663 }
664 rc = 0;
665fail:
Paul Brook725b8a62009-12-11 15:38:10 +0000666 env->regs[15] += 4;
Paul Brook426f5ab2009-11-22 21:35:13 +0000667 env->regs[(env->exclusive_info >> 4) & 0xf] = rc;
668done:
669 end_exclusive();
670 return segv;
671}
672
bellardb346ff42003-06-15 20:05:50 +0000673void cpu_loop(CPUARMState *env)
674{
Andreas Färber0315c312012-12-17 07:34:52 +0100675 CPUState *cs = CPU(arm_env_get_cpu(env));
bellardb346ff42003-06-15 20:05:50 +0000676 int trapnr;
677 unsigned int n, insn;
Anthony Liguoric227f092009-10-01 16:12:16 -0500678 target_siginfo_t info;
bellardb5ff1b32005-11-26 10:38:39 +0000679 uint32_t addr;
ths3b46e622007-09-17 08:09:54 +0000680
bellardb346ff42003-06-15 20:05:50 +0000681 for(;;) {
Andreas Färber0315c312012-12-17 07:34:52 +0100682 cpu_exec_start(cs);
bellardb346ff42003-06-15 20:05:50 +0000683 trapnr = cpu_arm_exec(env);
Andreas Färber0315c312012-12-17 07:34:52 +0100684 cpu_exec_end(cs);
bellardb346ff42003-06-15 20:05:50 +0000685 switch(trapnr) {
686 case EXCP_UDEF:
bellardc6981052004-02-16 21:49:03 +0000687 {
688 TaskState *ts = env->opaque;
689 uint32_t opcode;
aurel326d9a42b2008-04-07 20:30:53 +0000690 int rc;
bellardc6981052004-02-16 21:49:03 +0000691
692 /* we handle the FPU emulation here, as Linux */
693 /* we get the opcode */
bellard2f619692007-11-16 10:46:05 +0000694 /* FIXME - what to do if get_user() fails? */
Paul Brookd8fd2952012-03-30 18:02:50 +0100695 get_user_code_u32(opcode, env->regs[15], env->bswap_code);
ths3b46e622007-09-17 08:09:54 +0000696
aurel326d9a42b2008-04-07 20:30:53 +0000697 rc = EmulateAll(opcode, &ts->fpa, env);
698 if (rc == 0) { /* illegal instruction */
bellardc6981052004-02-16 21:49:03 +0000699 info.si_signo = SIGILL;
700 info.si_errno = 0;
701 info.si_code = TARGET_ILL_ILLOPN;
702 info._sifields._sigfault._addr = env->regs[15];
pbrook624f7972008-05-31 16:11:38 +0000703 queue_signal(env, info.si_signo, &info);
aurel326d9a42b2008-04-07 20:30:53 +0000704 } else if (rc < 0) { /* FP exception */
705 int arm_fpe=0;
706
707 /* translate softfloat flags to FPSR flags */
708 if (-rc & float_flag_invalid)
709 arm_fpe |= BIT_IOC;
710 if (-rc & float_flag_divbyzero)
711 arm_fpe |= BIT_DZC;
712 if (-rc & float_flag_overflow)
713 arm_fpe |= BIT_OFC;
714 if (-rc & float_flag_underflow)
715 arm_fpe |= BIT_UFC;
716 if (-rc & float_flag_inexact)
717 arm_fpe |= BIT_IXC;
718
719 FPSR fpsr = ts->fpa.fpsr;
720 //printf("fpsr 0x%x, arm_fpe 0x%x\n",fpsr,arm_fpe);
721
722 if (fpsr & (arm_fpe << 16)) { /* exception enabled? */
723 info.si_signo = SIGFPE;
724 info.si_errno = 0;
725
726 /* ordered by priority, least first */
727 if (arm_fpe & BIT_IXC) info.si_code = TARGET_FPE_FLTRES;
728 if (arm_fpe & BIT_UFC) info.si_code = TARGET_FPE_FLTUND;
729 if (arm_fpe & BIT_OFC) info.si_code = TARGET_FPE_FLTOVF;
730 if (arm_fpe & BIT_DZC) info.si_code = TARGET_FPE_FLTDIV;
731 if (arm_fpe & BIT_IOC) info.si_code = TARGET_FPE_FLTINV;
732
733 info._sifields._sigfault._addr = env->regs[15];
pbrook624f7972008-05-31 16:11:38 +0000734 queue_signal(env, info.si_signo, &info);
aurel326d9a42b2008-04-07 20:30:53 +0000735 } else {
736 env->regs[15] += 4;
737 }
738
739 /* accumulate unenabled exceptions */
740 if ((!(fpsr & BIT_IXE)) && (arm_fpe & BIT_IXC))
741 fpsr |= BIT_IXC;
742 if ((!(fpsr & BIT_UFE)) && (arm_fpe & BIT_UFC))
743 fpsr |= BIT_UFC;
744 if ((!(fpsr & BIT_OFE)) && (arm_fpe & BIT_OFC))
745 fpsr |= BIT_OFC;
746 if ((!(fpsr & BIT_DZE)) && (arm_fpe & BIT_DZC))
747 fpsr |= BIT_DZC;
748 if ((!(fpsr & BIT_IOE)) && (arm_fpe & BIT_IOC))
749 fpsr |= BIT_IOC;
750 ts->fpa.fpsr=fpsr;
751 } else { /* everything OK */
bellardc6981052004-02-16 21:49:03 +0000752 /* increment PC */
753 env->regs[15] += 4;
754 }
755 }
bellardb346ff42003-06-15 20:05:50 +0000756 break;
757 case EXCP_SWI:
pbrook06c949e2006-02-04 19:35:26 +0000758 case EXCP_BKPT:
bellardb346ff42003-06-15 20:05:50 +0000759 {
pbrookce4defa2006-02-09 16:49:55 +0000760 env->eabi = 1;
bellardb346ff42003-06-15 20:05:50 +0000761 /* system call */
pbrook06c949e2006-02-04 19:35:26 +0000762 if (trapnr == EXCP_BKPT) {
763 if (env->thumb) {
bellard2f619692007-11-16 10:46:05 +0000764 /* FIXME - what to do if get_user() fails? */
Paul Brookd8fd2952012-03-30 18:02:50 +0100765 get_user_code_u16(insn, env->regs[15], env->bswap_code);
pbrook06c949e2006-02-04 19:35:26 +0000766 n = insn & 0xff;
767 env->regs[15] += 2;
768 } else {
bellard2f619692007-11-16 10:46:05 +0000769 /* FIXME - what to do if get_user() fails? */
Paul Brookd8fd2952012-03-30 18:02:50 +0100770 get_user_code_u32(insn, env->regs[15], env->bswap_code);
pbrook06c949e2006-02-04 19:35:26 +0000771 n = (insn & 0xf) | ((insn >> 4) & 0xff0);
772 env->regs[15] += 4;
773 }
bellard192c7bd2005-04-27 20:11:21 +0000774 } else {
pbrook06c949e2006-02-04 19:35:26 +0000775 if (env->thumb) {
bellard2f619692007-11-16 10:46:05 +0000776 /* FIXME - what to do if get_user() fails? */
Paul Brookd8fd2952012-03-30 18:02:50 +0100777 get_user_code_u16(insn, env->regs[15] - 2,
778 env->bswap_code);
pbrook06c949e2006-02-04 19:35:26 +0000779 n = insn & 0xff;
780 } else {
bellard2f619692007-11-16 10:46:05 +0000781 /* FIXME - what to do if get_user() fails? */
Paul Brookd8fd2952012-03-30 18:02:50 +0100782 get_user_code_u32(insn, env->regs[15] - 4,
783 env->bswap_code);
pbrook06c949e2006-02-04 19:35:26 +0000784 n = insn & 0xffffff;
785 }
bellard192c7bd2005-04-27 20:11:21 +0000786 }
787
bellard6f1f31c2004-04-25 18:00:45 +0000788 if (n == ARM_NR_cacheflush) {
Blue Swirldcfd14b2011-05-14 11:55:30 +0000789 /* nop */
bellarda4f81972005-04-23 18:25:41 +0000790 } else if (n == ARM_NR_semihosting
791 || n == ARM_NR_thumb_semihosting) {
792 env->regs[0] = do_arm_semihosting (env);
Alexander Graf3a1363a2012-05-29 05:30:26 +0000793 } else if (n == 0 || n >= ARM_SYSCALL_BASE || env->thumb) {
bellardb346ff42003-06-15 20:05:50 +0000794 /* linux syscall */
pbrookce4defa2006-02-09 16:49:55 +0000795 if (env->thumb || n == 0) {
bellard192c7bd2005-04-27 20:11:21 +0000796 n = env->regs[7];
797 } else {
798 n -= ARM_SYSCALL_BASE;
pbrookce4defa2006-02-09 16:49:55 +0000799 env->eabi = 0;
bellard192c7bd2005-04-27 20:11:21 +0000800 }
pbrookfbb4a2e2008-05-29 00:20:44 +0000801 if ( n > ARM_NR_BASE) {
802 switch (n) {
803 case ARM_NR_cacheflush:
Blue Swirldcfd14b2011-05-14 11:55:30 +0000804 /* nop */
pbrookfbb4a2e2008-05-29 00:20:44 +0000805 break;
806 case ARM_NR_set_tls:
807 cpu_set_tls(env, env->regs[0]);
808 env->regs[0] = 0;
809 break;
810 default:
811 gemu_log("qemu: Unsupported ARM syscall: 0x%x\n",
812 n);
813 env->regs[0] = -TARGET_ENOSYS;
814 break;
815 }
816 } else {
817 env->regs[0] = do_syscall(env,
818 n,
819 env->regs[0],
820 env->regs[1],
821 env->regs[2],
822 env->regs[3],
823 env->regs[4],
Peter Maydell5945cfc2011-06-16 17:37:13 +0100824 env->regs[5],
825 0, 0);
pbrookfbb4a2e2008-05-29 00:20:44 +0000826 }
bellardb346ff42003-06-15 20:05:50 +0000827 } else {
828 goto error;
829 }
830 }
831 break;
bellard43fff232003-07-09 19:31:39 +0000832 case EXCP_INTERRUPT:
833 /* just indicate that signals should be handled asap */
834 break;
bellard68016c62005-02-07 23:12:27 +0000835 case EXCP_PREFETCH_ABORT:
balrogeae473c2008-07-29 14:09:57 +0000836 addr = env->cp15.c6_insn;
bellardb5ff1b32005-11-26 10:38:39 +0000837 goto do_segv;
bellard68016c62005-02-07 23:12:27 +0000838 case EXCP_DATA_ABORT:
balrogeae473c2008-07-29 14:09:57 +0000839 addr = env->cp15.c6_data;
bellardb5ff1b32005-11-26 10:38:39 +0000840 do_segv:
bellard68016c62005-02-07 23:12:27 +0000841 {
842 info.si_signo = SIGSEGV;
843 info.si_errno = 0;
844 /* XXX: check env->error_code */
845 info.si_code = TARGET_SEGV_MAPERR;
bellardb5ff1b32005-11-26 10:38:39 +0000846 info._sifields._sigfault._addr = addr;
pbrook624f7972008-05-31 16:11:38 +0000847 queue_signal(env, info.si_signo, &info);
bellard68016c62005-02-07 23:12:27 +0000848 }
849 break;
bellard1fddef42005-04-17 19:16:13 +0000850 case EXCP_DEBUG:
851 {
852 int sig;
853
Andreas Färberdb6b81d2013-06-27 19:49:31 +0200854 sig = gdb_handlesig(cs, TARGET_SIGTRAP);
bellard1fddef42005-04-17 19:16:13 +0000855 if (sig)
856 {
857 info.si_signo = sig;
858 info.si_errno = 0;
859 info.si_code = TARGET_TRAP_BRKPT;
pbrook624f7972008-05-31 16:11:38 +0000860 queue_signal(env, info.si_signo, &info);
bellard1fddef42005-04-17 19:16:13 +0000861 }
862 }
863 break;
pbrookfbb4a2e2008-05-29 00:20:44 +0000864 case EXCP_KERNEL_TRAP:
865 if (do_kernel_trap(env))
866 goto error;
867 break;
Paul Brook426f5ab2009-11-22 21:35:13 +0000868 case EXCP_STREX:
869 if (do_strex(env)) {
870 addr = env->cp15.c6_data;
871 goto do_segv;
872 }
Paul Brooke9273452009-11-24 13:10:08 +0000873 break;
bellardb346ff42003-06-15 20:05:50 +0000874 default:
875 error:
ths5fafdf22007-09-16 21:08:06 +0000876 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
bellardb346ff42003-06-15 20:05:50 +0000877 trapnr);
Andreas Färber878096e2013-05-27 01:33:50 +0200878 cpu_dump_state(cs, stderr, fprintf, 0);
bellardb346ff42003-06-15 20:05:50 +0000879 abort();
880 }
881 process_pending_signals(env);
882 }
883}
884
Peter Maydell1861c452013-09-03 20:12:13 +0100885#else
886
Michael Matzfa2ef212014-01-04 22:15:47 +0000887/*
888 * Handle AArch64 store-release exclusive
889 *
890 * rs = gets the status result of store exclusive
891 * rt = is the register that is stored
892 * rt2 = is the second register store (in STP)
893 *
894 */
895static int do_strex_a64(CPUARMState *env)
896{
897 uint64_t val;
898 int size;
899 bool is_pair;
900 int rc = 1;
901 int segv = 0;
902 uint64_t addr;
903 int rs, rt, rt2;
904
905 start_exclusive();
906 /* size | is_pair << 2 | (rs << 4) | (rt << 9) | (rt2 << 14)); */
907 size = extract32(env->exclusive_info, 0, 2);
908 is_pair = extract32(env->exclusive_info, 2, 1);
909 rs = extract32(env->exclusive_info, 4, 5);
910 rt = extract32(env->exclusive_info, 9, 5);
911 rt2 = extract32(env->exclusive_info, 14, 5);
912
913 addr = env->exclusive_addr;
914
915 if (addr != env->exclusive_test) {
916 goto finish;
917 }
918
919 switch (size) {
920 case 0:
921 segv = get_user_u8(val, addr);
922 break;
923 case 1:
924 segv = get_user_u16(val, addr);
925 break;
926 case 2:
927 segv = get_user_u32(val, addr);
928 break;
929 case 3:
930 segv = get_user_u64(val, addr);
931 break;
932 default:
933 abort();
934 }
935 if (segv) {
936 env->cp15.c6_data = addr;
937 goto error;
938 }
939 if (val != env->exclusive_val) {
940 goto finish;
941 }
942 if (is_pair) {
943 if (size == 2) {
944 segv = get_user_u32(val, addr + 4);
945 } else {
946 segv = get_user_u64(val, addr + 8);
947 }
948 if (segv) {
949 env->cp15.c6_data = addr + (size == 2 ? 4 : 8);
950 goto error;
951 }
952 if (val != env->exclusive_high) {
953 goto finish;
954 }
955 }
956 val = env->xregs[rt];
957 switch (size) {
958 case 0:
959 segv = put_user_u8(val, addr);
960 break;
961 case 1:
962 segv = put_user_u16(val, addr);
963 break;
964 case 2:
965 segv = put_user_u32(val, addr);
966 break;
967 case 3:
968 segv = put_user_u64(val, addr);
969 break;
970 }
971 if (segv) {
972 goto error;
973 }
974 if (is_pair) {
975 val = env->xregs[rt2];
976 if (size == 2) {
977 segv = put_user_u32(val, addr + 4);
978 } else {
979 segv = put_user_u64(val, addr + 8);
980 }
981 if (segv) {
982 env->cp15.c6_data = addr + (size == 2 ? 4 : 8);
983 goto error;
984 }
985 }
986 rc = 0;
987finish:
988 env->pc += 4;
989 /* rs == 31 encodes a write to the ZR, thus throwing away
990 * the status return. This is rather silly but valid.
991 */
992 if (rs < 31) {
993 env->xregs[rs] = rc;
994 }
995error:
996 /* instruction faulted, PC does not advance */
997 /* either way a strex releases any exclusive lock we have */
998 env->exclusive_addr = -1;
999 end_exclusive();
1000 return segv;
1001}
1002
Peter Maydell1861c452013-09-03 20:12:13 +01001003/* AArch64 main loop */
1004void cpu_loop(CPUARMState *env)
1005{
1006 CPUState *cs = CPU(arm_env_get_cpu(env));
1007 int trapnr, sig;
1008 target_siginfo_t info;
1009 uint32_t addr;
1010
1011 for (;;) {
1012 cpu_exec_start(cs);
1013 trapnr = cpu_arm_exec(env);
1014 cpu_exec_end(cs);
1015
1016 switch (trapnr) {
1017 case EXCP_SWI:
1018 env->xregs[0] = do_syscall(env,
1019 env->xregs[8],
1020 env->xregs[0],
1021 env->xregs[1],
1022 env->xregs[2],
1023 env->xregs[3],
1024 env->xregs[4],
1025 env->xregs[5],
1026 0, 0);
1027 break;
1028 case EXCP_INTERRUPT:
1029 /* just indicate that signals should be handled asap */
1030 break;
1031 case EXCP_UDEF:
1032 info.si_signo = SIGILL;
1033 info.si_errno = 0;
1034 info.si_code = TARGET_ILL_ILLOPN;
1035 info._sifields._sigfault._addr = env->pc;
1036 queue_signal(env, info.si_signo, &info);
1037 break;
1038 case EXCP_PREFETCH_ABORT:
1039 addr = env->cp15.c6_insn;
1040 goto do_segv;
1041 case EXCP_DATA_ABORT:
1042 addr = env->cp15.c6_data;
1043 do_segv:
1044 info.si_signo = SIGSEGV;
1045 info.si_errno = 0;
1046 /* XXX: check env->error_code */
1047 info.si_code = TARGET_SEGV_MAPERR;
1048 info._sifields._sigfault._addr = addr;
1049 queue_signal(env, info.si_signo, &info);
1050 break;
1051 case EXCP_DEBUG:
1052 case EXCP_BKPT:
1053 sig = gdb_handlesig(cs, TARGET_SIGTRAP);
1054 if (sig) {
1055 info.si_signo = sig;
1056 info.si_errno = 0;
1057 info.si_code = TARGET_TRAP_BRKPT;
1058 queue_signal(env, info.si_signo, &info);
1059 }
1060 break;
1061 case EXCP_STREX:
Michael Matzfa2ef212014-01-04 22:15:47 +00001062 if (do_strex_a64(env)) {
Peter Maydell1861c452013-09-03 20:12:13 +01001063 addr = env->cp15.c6_data;
1064 goto do_segv;
1065 }
1066 break;
1067 default:
1068 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
1069 trapnr);
1070 cpu_dump_state(cs, stderr, fprintf, 0);
1071 abort();
1072 }
1073 process_pending_signals(env);
Michael Matzfa2ef212014-01-04 22:15:47 +00001074 /* Exception return on AArch64 always clears the exclusive monitor,
1075 * so any return to running guest code implies this.
1076 * A strex (successful or otherwise) also clears the monitor, so
1077 * we don't need to specialcase EXCP_STREX.
1078 */
1079 env->exclusive_addr = -1;
Peter Maydell1861c452013-09-03 20:12:13 +01001080 }
1081}
1082#endif /* ndef TARGET_ABI32 */
1083
bellardb346ff42003-06-15 20:05:50 +00001084#endif
bellard1b6b0292003-03-22 17:31:38 +00001085
Guan Xuetaod2fbca92011-04-12 16:27:03 +08001086#ifdef TARGET_UNICORE32
1087
Andreas Färber05390242012-02-25 03:37:53 +01001088void cpu_loop(CPUUniCore32State *env)
Guan Xuetaod2fbca92011-04-12 16:27:03 +08001089{
Andreas Färber0315c312012-12-17 07:34:52 +01001090 CPUState *cs = CPU(uc32_env_get_cpu(env));
Guan Xuetaod2fbca92011-04-12 16:27:03 +08001091 int trapnr;
1092 unsigned int n, insn;
1093 target_siginfo_t info;
1094
1095 for (;;) {
Andreas Färber0315c312012-12-17 07:34:52 +01001096 cpu_exec_start(cs);
Guan Xuetaod2fbca92011-04-12 16:27:03 +08001097 trapnr = uc32_cpu_exec(env);
Andreas Färber0315c312012-12-17 07:34:52 +01001098 cpu_exec_end(cs);
Guan Xuetaod2fbca92011-04-12 16:27:03 +08001099 switch (trapnr) {
1100 case UC32_EXCP_PRIV:
1101 {
1102 /* system call */
1103 get_user_u32(insn, env->regs[31] - 4);
1104 n = insn & 0xffffff;
1105
1106 if (n >= UC32_SYSCALL_BASE) {
1107 /* linux syscall */
1108 n -= UC32_SYSCALL_BASE;
1109 if (n == UC32_SYSCALL_NR_set_tls) {
1110 cpu_set_tls(env, env->regs[0]);
1111 env->regs[0] = 0;
1112 } else {
1113 env->regs[0] = do_syscall(env,
1114 n,
1115 env->regs[0],
1116 env->regs[1],
1117 env->regs[2],
1118 env->regs[3],
1119 env->regs[4],
Peter Maydell5945cfc2011-06-16 17:37:13 +01001120 env->regs[5],
1121 0, 0);
Guan Xuetaod2fbca92011-04-12 16:27:03 +08001122 }
1123 } else {
1124 goto error;
1125 }
1126 }
1127 break;
Guan Xuetaod48813d2012-08-10 14:42:23 +08001128 case UC32_EXCP_DTRAP:
1129 case UC32_EXCP_ITRAP:
Guan Xuetaod2fbca92011-04-12 16:27:03 +08001130 info.si_signo = SIGSEGV;
1131 info.si_errno = 0;
1132 /* XXX: check env->error_code */
1133 info.si_code = TARGET_SEGV_MAPERR;
1134 info._sifields._sigfault._addr = env->cp0.c4_faultaddr;
1135 queue_signal(env, info.si_signo, &info);
1136 break;
1137 case EXCP_INTERRUPT:
1138 /* just indicate that signals should be handled asap */
1139 break;
1140 case EXCP_DEBUG:
1141 {
1142 int sig;
1143
Andreas Färberdb6b81d2013-06-27 19:49:31 +02001144 sig = gdb_handlesig(cs, TARGET_SIGTRAP);
Guan Xuetaod2fbca92011-04-12 16:27:03 +08001145 if (sig) {
1146 info.si_signo = sig;
1147 info.si_errno = 0;
1148 info.si_code = TARGET_TRAP_BRKPT;
1149 queue_signal(env, info.si_signo, &info);
1150 }
1151 }
1152 break;
1153 default:
1154 goto error;
1155 }
1156 process_pending_signals(env);
1157 }
1158
1159error:
1160 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr);
Andreas Färber878096e2013-05-27 01:33:50 +02001161 cpu_dump_state(cs, stderr, fprintf, 0);
Guan Xuetaod2fbca92011-04-12 16:27:03 +08001162 abort();
1163}
1164#endif
1165
bellard93ac68b2003-09-30 20:57:29 +00001166#ifdef TARGET_SPARC
blueswir1ed23fbd2008-08-30 09:20:21 +00001167#define SPARC64_STACK_BIAS 2047
bellard93ac68b2003-09-30 20:57:29 +00001168
bellard060366c2004-01-04 15:50:01 +00001169//#define DEBUG_WIN
1170
bellard2623cba2005-02-19 17:25:31 +00001171/* WARNING: dealing with register windows _is_ complicated. More info
1172 can be found at http://www.sics.se/~psm/sparcstack.html */
bellard060366c2004-01-04 15:50:01 +00001173static inline int get_reg_index(CPUSPARCState *env, int cwp, int index)
1174{
blueswir11a140262008-06-07 08:07:37 +00001175 index = (index + cwp * 16) % (16 * env->nwindows);
bellard060366c2004-01-04 15:50:01 +00001176 /* wrap handling : if cwp is on the last window, then we use the
1177 registers 'after' the end */
blueswir11a140262008-06-07 08:07:37 +00001178 if (index < 8 && env->cwp == env->nwindows - 1)
1179 index += 16 * env->nwindows;
bellard060366c2004-01-04 15:50:01 +00001180 return index;
1181}
1182
bellard2623cba2005-02-19 17:25:31 +00001183/* save the register window 'cwp1' */
1184static inline void save_window_offset(CPUSPARCState *env, int cwp1)
bellard060366c2004-01-04 15:50:01 +00001185{
bellard2623cba2005-02-19 17:25:31 +00001186 unsigned int i;
blueswir1992f48a2007-10-14 16:27:31 +00001187 abi_ulong sp_ptr;
ths3b46e622007-09-17 08:09:54 +00001188
pbrook53a59602006-03-25 19:31:22 +00001189 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
blueswir1ed23fbd2008-08-30 09:20:21 +00001190#ifdef TARGET_SPARC64
1191 if (sp_ptr & 3)
1192 sp_ptr += SPARC64_STACK_BIAS;
1193#endif
bellard060366c2004-01-04 15:50:01 +00001194#if defined(DEBUG_WIN)
blueswir12daf0282008-06-15 18:02:48 +00001195 printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n",
1196 sp_ptr, cwp1);
bellard060366c2004-01-04 15:50:01 +00001197#endif
bellard2623cba2005-02-19 17:25:31 +00001198 for(i = 0; i < 16; i++) {
bellard2f619692007-11-16 10:46:05 +00001199 /* FIXME - what to do if put_user() fails? */
1200 put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
blueswir1992f48a2007-10-14 16:27:31 +00001201 sp_ptr += sizeof(abi_ulong);
bellard2623cba2005-02-19 17:25:31 +00001202 }
bellard060366c2004-01-04 15:50:01 +00001203}
1204
1205static void save_window(CPUSPARCState *env)
1206{
bellard5ef54112006-07-18 21:14:09 +00001207#ifndef TARGET_SPARC64
bellard2623cba2005-02-19 17:25:31 +00001208 unsigned int new_wim;
blueswir11a140262008-06-07 08:07:37 +00001209 new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) &
1210 ((1LL << env->nwindows) - 1);
1211 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
bellard2623cba2005-02-19 17:25:31 +00001212 env->wim = new_wim;
bellard5ef54112006-07-18 21:14:09 +00001213#else
blueswir11a140262008-06-07 08:07:37 +00001214 save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
bellard5ef54112006-07-18 21:14:09 +00001215 env->cansave++;
1216 env->canrestore--;
1217#endif
bellard060366c2004-01-04 15:50:01 +00001218}
1219
1220static void restore_window(CPUSPARCState *env)
1221{
blueswir1eda52952008-08-27 19:19:44 +00001222#ifndef TARGET_SPARC64
1223 unsigned int new_wim;
1224#endif
1225 unsigned int i, cwp1;
blueswir1992f48a2007-10-14 16:27:31 +00001226 abi_ulong sp_ptr;
ths3b46e622007-09-17 08:09:54 +00001227
blueswir1eda52952008-08-27 19:19:44 +00001228#ifndef TARGET_SPARC64
blueswir11a140262008-06-07 08:07:37 +00001229 new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) &
1230 ((1LL << env->nwindows) - 1);
blueswir1eda52952008-08-27 19:19:44 +00001231#endif
ths3b46e622007-09-17 08:09:54 +00001232
bellard060366c2004-01-04 15:50:01 +00001233 /* restore the invalid window */
blueswir11a140262008-06-07 08:07:37 +00001234 cwp1 = cpu_cwp_inc(env, env->cwp + 1);
pbrook53a59602006-03-25 19:31:22 +00001235 sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
blueswir1ed23fbd2008-08-30 09:20:21 +00001236#ifdef TARGET_SPARC64
1237 if (sp_ptr & 3)
1238 sp_ptr += SPARC64_STACK_BIAS;
1239#endif
bellard060366c2004-01-04 15:50:01 +00001240#if defined(DEBUG_WIN)
blueswir12daf0282008-06-15 18:02:48 +00001241 printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n",
1242 sp_ptr, cwp1);
bellard060366c2004-01-04 15:50:01 +00001243#endif
bellard2623cba2005-02-19 17:25:31 +00001244 for(i = 0; i < 16; i++) {
bellard2f619692007-11-16 10:46:05 +00001245 /* FIXME - what to do if get_user() fails? */
1246 get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
blueswir1992f48a2007-10-14 16:27:31 +00001247 sp_ptr += sizeof(abi_ulong);
bellard2623cba2005-02-19 17:25:31 +00001248 }
bellard5ef54112006-07-18 21:14:09 +00001249#ifdef TARGET_SPARC64
1250 env->canrestore++;
blueswir11a140262008-06-07 08:07:37 +00001251 if (env->cleanwin < env->nwindows - 1)
1252 env->cleanwin++;
bellard5ef54112006-07-18 21:14:09 +00001253 env->cansave--;
blueswir1eda52952008-08-27 19:19:44 +00001254#else
1255 env->wim = new_wim;
bellard5ef54112006-07-18 21:14:09 +00001256#endif
bellard060366c2004-01-04 15:50:01 +00001257}
1258
1259static void flush_windows(CPUSPARCState *env)
1260{
1261 int offset, cwp1;
bellard2623cba2005-02-19 17:25:31 +00001262
1263 offset = 1;
bellard060366c2004-01-04 15:50:01 +00001264 for(;;) {
1265 /* if restore would invoke restore_window(), then we can stop */
blueswir11a140262008-06-07 08:07:37 +00001266 cwp1 = cpu_cwp_inc(env, env->cwp + offset);
blueswir1eda52952008-08-27 19:19:44 +00001267#ifndef TARGET_SPARC64
bellard060366c2004-01-04 15:50:01 +00001268 if (env->wim & (1 << cwp1))
1269 break;
blueswir1eda52952008-08-27 19:19:44 +00001270#else
1271 if (env->canrestore == 0)
1272 break;
1273 env->cansave++;
1274 env->canrestore--;
1275#endif
bellard2623cba2005-02-19 17:25:31 +00001276 save_window_offset(env, cwp1);
bellard060366c2004-01-04 15:50:01 +00001277 offset++;
1278 }
blueswir11a140262008-06-07 08:07:37 +00001279 cwp1 = cpu_cwp_inc(env, env->cwp + 1);
blueswir1eda52952008-08-27 19:19:44 +00001280#ifndef TARGET_SPARC64
1281 /* set wim so that restore will reload the registers */
bellard2623cba2005-02-19 17:25:31 +00001282 env->wim = 1 << cwp1;
blueswir1eda52952008-08-27 19:19:44 +00001283#endif
bellard2623cba2005-02-19 17:25:31 +00001284#if defined(DEBUG_WIN)
1285 printf("flush_windows: nb=%d\n", offset - 1);
bellard80a9d032005-01-03 23:31:27 +00001286#endif
bellard2623cba2005-02-19 17:25:31 +00001287}
bellard060366c2004-01-04 15:50:01 +00001288
bellard93ac68b2003-09-30 20:57:29 +00001289void cpu_loop (CPUSPARCState *env)
1290{
Andreas Färber878096e2013-05-27 01:33:50 +02001291 CPUState *cs = CPU(sparc_env_get_cpu(env));
Richard Henderson2cc20262010-04-25 11:01:25 -07001292 int trapnr;
1293 abi_long ret;
Anthony Liguoric227f092009-10-01 16:12:16 -05001294 target_siginfo_t info;
ths3b46e622007-09-17 08:09:54 +00001295
bellard060366c2004-01-04 15:50:01 +00001296 while (1) {
1297 trapnr = cpu_sparc_exec (env);
ths3b46e622007-09-17 08:09:54 +00001298
Richard Henderson20132b92012-10-09 14:50:00 -07001299 /* Compute PSR before exposing state. */
1300 if (env->cc_op != CC_OP_FLAGS) {
1301 cpu_get_psr(env);
1302 }
1303
bellard060366c2004-01-04 15:50:01 +00001304 switch (trapnr) {
bellard5ef54112006-07-18 21:14:09 +00001305#ifndef TARGET_SPARC64
ths5fafdf22007-09-16 21:08:06 +00001306 case 0x88:
bellard060366c2004-01-04 15:50:01 +00001307 case 0x90:
bellard5ef54112006-07-18 21:14:09 +00001308#else
blueswir1cb33da52007-10-09 16:34:29 +00001309 case 0x110:
bellard5ef54112006-07-18 21:14:09 +00001310 case 0x16d:
1311#endif
bellard060366c2004-01-04 15:50:01 +00001312 ret = do_syscall (env, env->gregs[1],
ths5fafdf22007-09-16 21:08:06 +00001313 env->regwptr[0], env->regwptr[1],
1314 env->regwptr[2], env->regwptr[3],
Peter Maydell5945cfc2011-06-16 17:37:13 +01001315 env->regwptr[4], env->regwptr[5],
1316 0, 0);
Richard Henderson2cc20262010-04-25 11:01:25 -07001317 if ((abi_ulong)ret >= (abi_ulong)(-515)) {
blueswir1992f48a2007-10-14 16:27:31 +00001318#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
bellard27908722006-10-23 21:31:01 +00001319 env->xcc |= PSR_CARRY;
1320#else
bellard060366c2004-01-04 15:50:01 +00001321 env->psr |= PSR_CARRY;
bellard27908722006-10-23 21:31:01 +00001322#endif
bellard060366c2004-01-04 15:50:01 +00001323 ret = -ret;
1324 } else {
blueswir1992f48a2007-10-14 16:27:31 +00001325#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
bellard27908722006-10-23 21:31:01 +00001326 env->xcc &= ~PSR_CARRY;
1327#else
bellard060366c2004-01-04 15:50:01 +00001328 env->psr &= ~PSR_CARRY;
bellard27908722006-10-23 21:31:01 +00001329#endif
bellard060366c2004-01-04 15:50:01 +00001330 }
1331 env->regwptr[0] = ret;
1332 /* next instruction */
1333 env->pc = env->npc;
1334 env->npc = env->npc + 4;
1335 break;
1336 case 0x83: /* flush windows */
blueswir1992f48a2007-10-14 16:27:31 +00001337#ifdef TARGET_ABI32
1338 case 0x103:
1339#endif
bellard2623cba2005-02-19 17:25:31 +00001340 flush_windows(env);
bellard060366c2004-01-04 15:50:01 +00001341 /* next instruction */
1342 env->pc = env->npc;
1343 env->npc = env->npc + 4;
1344 break;
bellard34751872005-07-02 14:31:34 +00001345#ifndef TARGET_SPARC64
bellard060366c2004-01-04 15:50:01 +00001346 case TT_WIN_OVF: /* window overflow */
1347 save_window(env);
1348 break;
1349 case TT_WIN_UNF: /* window underflow */
1350 restore_window(env);
1351 break;
bellard61ff6f52005-02-15 22:54:53 +00001352 case TT_TFAULT:
1353 case TT_DFAULT:
1354 {
Richard Henderson59f71822011-10-25 10:34:07 -07001355 info.si_signo = TARGET_SIGSEGV;
bellard61ff6f52005-02-15 22:54:53 +00001356 info.si_errno = 0;
1357 /* XXX: check env->error_code */
1358 info.si_code = TARGET_SEGV_MAPERR;
1359 info._sifields._sigfault._addr = env->mmuregs[4];
pbrook624f7972008-05-31 16:11:38 +00001360 queue_signal(env, info.si_signo, &info);
bellard61ff6f52005-02-15 22:54:53 +00001361 }
1362 break;
bellard34751872005-07-02 14:31:34 +00001363#else
bellard5ef54112006-07-18 21:14:09 +00001364 case TT_SPILL: /* window overflow */
1365 save_window(env);
1366 break;
1367 case TT_FILL: /* window underflow */
1368 restore_window(env);
1369 break;
blueswir17f84a722007-07-07 20:46:41 +00001370 case TT_TFAULT:
1371 case TT_DFAULT:
1372 {
Richard Henderson59f71822011-10-25 10:34:07 -07001373 info.si_signo = TARGET_SIGSEGV;
blueswir17f84a722007-07-07 20:46:41 +00001374 info.si_errno = 0;
1375 /* XXX: check env->error_code */
1376 info.si_code = TARGET_SEGV_MAPERR;
1377 if (trapnr == TT_DFAULT)
1378 info._sifields._sigfault._addr = env->dmmuregs[4];
1379 else
Igor Kovalenko8194f352009-08-03 23:15:02 +04001380 info._sifields._sigfault._addr = cpu_tsptr(env)->tpc;
pbrook624f7972008-05-31 16:11:38 +00001381 queue_signal(env, info.si_signo, &info);
blueswir17f84a722007-07-07 20:46:41 +00001382 }
1383 break;
bellard27524dc2007-11-11 19:32:52 +00001384#ifndef TARGET_ABI32
blueswir15bfb56b2007-10-05 17:01:51 +00001385 case 0x16e:
1386 flush_windows(env);
1387 sparc64_get_context(env);
1388 break;
1389 case 0x16f:
1390 flush_windows(env);
1391 sparc64_set_context(env);
1392 break;
bellard34751872005-07-02 14:31:34 +00001393#endif
bellard27524dc2007-11-11 19:32:52 +00001394#endif
bellard48dc41e2006-06-21 18:15:50 +00001395 case EXCP_INTERRUPT:
1396 /* just indicate that signals should be handled asap */
1397 break;
Richard Henderson75f22e42011-10-25 10:34:06 -07001398 case TT_ILL_INSN:
1399 {
1400 info.si_signo = TARGET_SIGILL;
1401 info.si_errno = 0;
1402 info.si_code = TARGET_ILL_ILLOPC;
1403 info._sifields._sigfault._addr = env->pc;
1404 queue_signal(env, info.si_signo, &info);
1405 }
1406 break;
bellard1fddef42005-04-17 19:16:13 +00001407 case EXCP_DEBUG:
1408 {
1409 int sig;
1410
Andreas Färberdb6b81d2013-06-27 19:49:31 +02001411 sig = gdb_handlesig(cs, TARGET_SIGTRAP);
bellard1fddef42005-04-17 19:16:13 +00001412 if (sig)
1413 {
1414 info.si_signo = sig;
1415 info.si_errno = 0;
1416 info.si_code = TARGET_TRAP_BRKPT;
pbrook624f7972008-05-31 16:11:38 +00001417 queue_signal(env, info.si_signo, &info);
bellard1fddef42005-04-17 19:16:13 +00001418 }
1419 }
1420 break;
bellard060366c2004-01-04 15:50:01 +00001421 default:
1422 printf ("Unhandled trap: 0x%x\n", trapnr);
Andreas Färber878096e2013-05-27 01:33:50 +02001423 cpu_dump_state(cs, stderr, fprintf, 0);
bellard060366c2004-01-04 15:50:01 +00001424 exit (1);
1425 }
1426 process_pending_signals (env);
1427 }
bellard93ac68b2003-09-30 20:57:29 +00001428}
1429
1430#endif
1431
bellard67867302003-11-23 17:05:30 +00001432#ifdef TARGET_PPC
Andreas Färber05390242012-02-25 03:37:53 +01001433static inline uint64_t cpu_ppc_get_tb(CPUPPCState *env)
bellard9fddaa02004-05-21 12:59:32 +00001434{
1435 /* TO FIX */
1436 return 0;
1437}
ths3b46e622007-09-17 08:09:54 +00001438
Andreas Färber05390242012-02-25 03:37:53 +01001439uint64_t cpu_ppc_load_tbl(CPUPPCState *env)
bellard9fddaa02004-05-21 12:59:32 +00001440{
Alexander Grafe3ea6522009-12-21 12:24:17 +01001441 return cpu_ppc_get_tb(env);
bellard9fddaa02004-05-21 12:59:32 +00001442}
ths3b46e622007-09-17 08:09:54 +00001443
Andreas Färber05390242012-02-25 03:37:53 +01001444uint32_t cpu_ppc_load_tbu(CPUPPCState *env)
bellard9fddaa02004-05-21 12:59:32 +00001445{
1446 return cpu_ppc_get_tb(env) >> 32;
1447}
ths3b46e622007-09-17 08:09:54 +00001448
Andreas Färber05390242012-02-25 03:37:53 +01001449uint64_t cpu_ppc_load_atbl(CPUPPCState *env)
bellard9fddaa02004-05-21 12:59:32 +00001450{
Aurelien Jarnob711de92009-12-21 13:52:08 +01001451 return cpu_ppc_get_tb(env);
bellard9fddaa02004-05-21 12:59:32 +00001452}
1453
Andreas Färber05390242012-02-25 03:37:53 +01001454uint32_t cpu_ppc_load_atbu(CPUPPCState *env)
bellard9fddaa02004-05-21 12:59:32 +00001455{
j_mayera062e362007-09-30 00:38:38 +00001456 return cpu_ppc_get_tb(env) >> 32;
bellard9fddaa02004-05-21 12:59:32 +00001457}
ths5fafdf22007-09-16 21:08:06 +00001458
Andreas Färber05390242012-02-25 03:37:53 +01001459uint32_t cpu_ppc601_load_rtcu(CPUPPCState *env)
j_mayer76a66252007-03-07 08:32:30 +00001460__attribute__ (( alias ("cpu_ppc_load_tbu") ));
1461
Andreas Färber05390242012-02-25 03:37:53 +01001462uint32_t cpu_ppc601_load_rtcl(CPUPPCState *env)
bellard9fddaa02004-05-21 12:59:32 +00001463{
j_mayer76a66252007-03-07 08:32:30 +00001464 return cpu_ppc_load_tbl(env) & 0x3FFFFF80;
bellard9fddaa02004-05-21 12:59:32 +00001465}
j_mayer76a66252007-03-07 08:32:30 +00001466
j_mayera750fc02007-09-26 23:54:22 +00001467/* XXX: to be fixed */
Alexander Graf73b01962009-12-21 14:02:39 +01001468int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, uint32_t *valp)
j_mayera750fc02007-09-26 23:54:22 +00001469{
1470 return -1;
1471}
1472
Alexander Graf73b01962009-12-21 14:02:39 +01001473int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, uint32_t val)
j_mayera750fc02007-09-26 23:54:22 +00001474{
1475 return -1;
1476}
1477
Blue Swirl001faf32009-05-13 17:53:17 +00001478#define EXCP_DUMP(env, fmt, ...) \
1479do { \
Andreas Färbera0762852013-06-16 07:28:50 +02001480 CPUState *cs = ENV_GET_CPU(env); \
Blue Swirl001faf32009-05-13 17:53:17 +00001481 fprintf(stderr, fmt , ## __VA_ARGS__); \
Andreas Färbera0762852013-06-16 07:28:50 +02001482 cpu_dump_state(cs, stderr, fprintf, 0); \
Blue Swirl001faf32009-05-13 17:53:17 +00001483 qemu_log(fmt, ## __VA_ARGS__); \
Blue Swirleeacee42012-06-03 16:35:32 +00001484 if (qemu_log_enabled()) { \
Andreas Färbera0762852013-06-16 07:28:50 +02001485 log_cpu_state(cs, 0); \
Blue Swirleeacee42012-06-03 16:35:32 +00001486 } \
j_mayere1833e12007-09-29 13:06:16 +00001487} while (0)
1488
Nathan Froyd56f066b2009-08-03 08:43:27 -07001489static int do_store_exclusive(CPUPPCState *env)
1490{
1491 target_ulong addr;
1492 target_ulong page_addr;
1493 target_ulong val;
1494 int flags;
1495 int segv = 0;
1496
1497 addr = env->reserve_ea;
1498 page_addr = addr & TARGET_PAGE_MASK;
1499 start_exclusive();
1500 mmap_lock();
1501 flags = page_get_flags(page_addr);
1502 if ((flags & PAGE_READ) == 0) {
1503 segv = 1;
1504 } else {
1505 int reg = env->reserve_info & 0x1f;
1506 int size = (env->reserve_info >> 5) & 0xf;
1507 int stored = 0;
1508
1509 if (addr == env->reserve_addr) {
1510 switch (size) {
1511 case 1: segv = get_user_u8(val, addr); break;
1512 case 2: segv = get_user_u16(val, addr); break;
1513 case 4: segv = get_user_u32(val, addr); break;
1514#if defined(TARGET_PPC64)
1515 case 8: segv = get_user_u64(val, addr); break;
1516#endif
1517 default: abort();
1518 }
1519 if (!segv && val == env->reserve_val) {
1520 val = env->gpr[reg];
1521 switch (size) {
1522 case 1: segv = put_user_u8(val, addr); break;
1523 case 2: segv = put_user_u16(val, addr); break;
1524 case 4: segv = put_user_u32(val, addr); break;
1525#if defined(TARGET_PPC64)
1526 case 8: segv = put_user_u64(val, addr); break;
1527#endif
1528 default: abort();
1529 }
1530 if (!segv) {
1531 stored = 1;
1532 }
1533 }
1534 }
1535 env->crf[0] = (stored << 1) | xer_so;
1536 env->reserve_addr = (target_ulong)-1;
1537 }
1538 if (!segv) {
1539 env->nip += 4;
1540 }
1541 mmap_unlock();
1542 end_exclusive();
1543 return segv;
1544}
1545
bellard67867302003-11-23 17:05:30 +00001546void cpu_loop(CPUPPCState *env)
1547{
Andreas Färber0315c312012-12-17 07:34:52 +01001548 CPUState *cs = CPU(ppc_env_get_cpu(env));
Anthony Liguoric227f092009-10-01 16:12:16 -05001549 target_siginfo_t info;
bellard61190b12004-01-04 23:54:31 +00001550 int trapnr;
Richard Henderson9e0e2f92011-10-26 09:59:18 -07001551 target_ulong ret;
ths3b46e622007-09-17 08:09:54 +00001552
bellard67867302003-11-23 17:05:30 +00001553 for(;;) {
Andreas Färber0315c312012-12-17 07:34:52 +01001554 cpu_exec_start(cs);
bellard67867302003-11-23 17:05:30 +00001555 trapnr = cpu_ppc_exec(env);
Andreas Färber0315c312012-12-17 07:34:52 +01001556 cpu_exec_end(cs);
bellard67867302003-11-23 17:05:30 +00001557 switch(trapnr) {
j_mayere1833e12007-09-29 13:06:16 +00001558 case POWERPC_EXCP_NONE:
1559 /* Just go on */
bellard67867302003-11-23 17:05:30 +00001560 break;
j_mayere1833e12007-09-29 13:06:16 +00001561 case POWERPC_EXCP_CRITICAL: /* Critical input */
1562 cpu_abort(env, "Critical interrupt while in user mode. "
1563 "Aborting\n");
1564 break;
1565 case POWERPC_EXCP_MCHECK: /* Machine check exception */
1566 cpu_abort(env, "Machine check exception while in user mode. "
1567 "Aborting\n");
1568 break;
1569 case POWERPC_EXCP_DSI: /* Data storage exception */
Blue Swirl90e189e2009-08-16 11:13:18 +00001570 EXCP_DUMP(env, "Invalid data memory access: 0x" TARGET_FMT_lx "\n",
j_mayere1833e12007-09-29 13:06:16 +00001571 env->spr[SPR_DAR]);
1572 /* XXX: check this. Seems bugged */
1573 switch (env->error_code & 0xFF000000) {
1574 case 0x40000000:
1575 info.si_signo = TARGET_SIGSEGV;
1576 info.si_errno = 0;
1577 info.si_code = TARGET_SEGV_MAPERR;
1578 break;
1579 case 0x04000000:
1580 info.si_signo = TARGET_SIGILL;
1581 info.si_errno = 0;
1582 info.si_code = TARGET_ILL_ILLADR;
1583 break;
1584 case 0x08000000:
1585 info.si_signo = TARGET_SIGSEGV;
1586 info.si_errno = 0;
1587 info.si_code = TARGET_SEGV_ACCERR;
1588 break;
1589 default:
1590 /* Let's send a regular segfault... */
1591 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1592 env->error_code);
1593 info.si_signo = TARGET_SIGSEGV;
1594 info.si_errno = 0;
1595 info.si_code = TARGET_SEGV_MAPERR;
1596 break;
1597 }
1598 info._sifields._sigfault._addr = env->nip;
pbrook624f7972008-05-31 16:11:38 +00001599 queue_signal(env, info.si_signo, &info);
j_mayere1833e12007-09-29 13:06:16 +00001600 break;
1601 case POWERPC_EXCP_ISI: /* Instruction storage exception */
Blue Swirl90e189e2009-08-16 11:13:18 +00001602 EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" TARGET_FMT_lx
1603 "\n", env->spr[SPR_SRR0]);
j_mayere1833e12007-09-29 13:06:16 +00001604 /* XXX: check this */
1605 switch (env->error_code & 0xFF000000) {
1606 case 0x40000000:
1607 info.si_signo = TARGET_SIGSEGV;
1608 info.si_errno = 0;
1609 info.si_code = TARGET_SEGV_MAPERR;
1610 break;
1611 case 0x10000000:
1612 case 0x08000000:
1613 info.si_signo = TARGET_SIGSEGV;
1614 info.si_errno = 0;
1615 info.si_code = TARGET_SEGV_ACCERR;
1616 break;
1617 default:
1618 /* Let's send a regular segfault... */
1619 EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
1620 env->error_code);
1621 info.si_signo = TARGET_SIGSEGV;
1622 info.si_errno = 0;
1623 info.si_code = TARGET_SEGV_MAPERR;
1624 break;
1625 }
1626 info._sifields._sigfault._addr = env->nip - 4;
pbrook624f7972008-05-31 16:11:38 +00001627 queue_signal(env, info.si_signo, &info);
j_mayere1833e12007-09-29 13:06:16 +00001628 break;
1629 case POWERPC_EXCP_EXTERNAL: /* External input */
1630 cpu_abort(env, "External interrupt while in user mode. "
1631 "Aborting\n");
1632 break;
1633 case POWERPC_EXCP_ALIGN: /* Alignment exception */
1634 EXCP_DUMP(env, "Unaligned memory access\n");
1635 /* XXX: check this */
1636 info.si_signo = TARGET_SIGBUS;
1637 info.si_errno = 0;
1638 info.si_code = TARGET_BUS_ADRALN;
1639 info._sifields._sigfault._addr = env->nip - 4;
pbrook624f7972008-05-31 16:11:38 +00001640 queue_signal(env, info.si_signo, &info);
j_mayere1833e12007-09-29 13:06:16 +00001641 break;
1642 case POWERPC_EXCP_PROGRAM: /* Program exception */
1643 /* XXX: check this */
1644 switch (env->error_code & ~0xF) {
1645 case POWERPC_EXCP_FP:
1646 EXCP_DUMP(env, "Floating point program exception\n");
j_mayere1833e12007-09-29 13:06:16 +00001647 info.si_signo = TARGET_SIGFPE;
1648 info.si_errno = 0;
1649 switch (env->error_code & 0xF) {
1650 case POWERPC_EXCP_FP_OX:
1651 info.si_code = TARGET_FPE_FLTOVF;
1652 break;
1653 case POWERPC_EXCP_FP_UX:
1654 info.si_code = TARGET_FPE_FLTUND;
1655 break;
1656 case POWERPC_EXCP_FP_ZX:
1657 case POWERPC_EXCP_FP_VXZDZ:
1658 info.si_code = TARGET_FPE_FLTDIV;
1659 break;
1660 case POWERPC_EXCP_FP_XX:
1661 info.si_code = TARGET_FPE_FLTRES;
1662 break;
1663 case POWERPC_EXCP_FP_VXSOFT:
1664 info.si_code = TARGET_FPE_FLTINV;
1665 break;
j_mayer7c580442007-10-27 17:54:30 +00001666 case POWERPC_EXCP_FP_VXSNAN:
j_mayere1833e12007-09-29 13:06:16 +00001667 case POWERPC_EXCP_FP_VXISI:
1668 case POWERPC_EXCP_FP_VXIDI:
1669 case POWERPC_EXCP_FP_VXIMZ:
1670 case POWERPC_EXCP_FP_VXVC:
1671 case POWERPC_EXCP_FP_VXSQRT:
1672 case POWERPC_EXCP_FP_VXCVI:
1673 info.si_code = TARGET_FPE_FLTSUB;
1674 break;
1675 default:
1676 EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
1677 env->error_code);
1678 break;
1679 }
1680 break;
1681 case POWERPC_EXCP_INVAL:
1682 EXCP_DUMP(env, "Invalid instruction\n");
1683 info.si_signo = TARGET_SIGILL;
1684 info.si_errno = 0;
1685 switch (env->error_code & 0xF) {
1686 case POWERPC_EXCP_INVAL_INVAL:
1687 info.si_code = TARGET_ILL_ILLOPC;
1688 break;
1689 case POWERPC_EXCP_INVAL_LSWX:
1690 info.si_code = TARGET_ILL_ILLOPN;
1691 break;
1692 case POWERPC_EXCP_INVAL_SPR:
1693 info.si_code = TARGET_ILL_PRVREG;
1694 break;
1695 case POWERPC_EXCP_INVAL_FP:
1696 info.si_code = TARGET_ILL_COPROC;
1697 break;
1698 default:
1699 EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
1700 env->error_code & 0xF);
1701 info.si_code = TARGET_ILL_ILLADR;
1702 break;
1703 }
1704 break;
1705 case POWERPC_EXCP_PRIV:
1706 EXCP_DUMP(env, "Privilege violation\n");
1707 info.si_signo = TARGET_SIGILL;
1708 info.si_errno = 0;
1709 switch (env->error_code & 0xF) {
1710 case POWERPC_EXCP_PRIV_OPC:
1711 info.si_code = TARGET_ILL_PRVOPC;
1712 break;
1713 case POWERPC_EXCP_PRIV_REG:
1714 info.si_code = TARGET_ILL_PRVREG;
1715 break;
1716 default:
1717 EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
1718 env->error_code & 0xF);
1719 info.si_code = TARGET_ILL_PRVOPC;
1720 break;
1721 }
1722 break;
1723 case POWERPC_EXCP_TRAP:
1724 cpu_abort(env, "Tried to call a TRAP\n");
1725 break;
1726 default:
1727 /* Should not happen ! */
1728 cpu_abort(env, "Unknown program exception (%02x)\n",
1729 env->error_code);
1730 break;
1731 }
1732 info._sifields._sigfault._addr = env->nip - 4;
pbrook624f7972008-05-31 16:11:38 +00001733 queue_signal(env, info.si_signo, &info);
j_mayere1833e12007-09-29 13:06:16 +00001734 break;
1735 case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */
1736 EXCP_DUMP(env, "No floating point allowed\n");
1737 info.si_signo = TARGET_SIGILL;
1738 info.si_errno = 0;
1739 info.si_code = TARGET_ILL_COPROC;
1740 info._sifields._sigfault._addr = env->nip - 4;
pbrook624f7972008-05-31 16:11:38 +00001741 queue_signal(env, info.si_signo, &info);
j_mayere1833e12007-09-29 13:06:16 +00001742 break;
1743 case POWERPC_EXCP_SYSCALL: /* System call exception */
1744 cpu_abort(env, "Syscall exception while in user mode. "
1745 "Aborting\n");
1746 break;
1747 case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
1748 EXCP_DUMP(env, "No APU instruction allowed\n");
1749 info.si_signo = TARGET_SIGILL;
1750 info.si_errno = 0;
1751 info.si_code = TARGET_ILL_COPROC;
1752 info._sifields._sigfault._addr = env->nip - 4;
pbrook624f7972008-05-31 16:11:38 +00001753 queue_signal(env, info.si_signo, &info);
j_mayere1833e12007-09-29 13:06:16 +00001754 break;
1755 case POWERPC_EXCP_DECR: /* Decrementer exception */
1756 cpu_abort(env, "Decrementer interrupt while in user mode. "
1757 "Aborting\n");
1758 break;
1759 case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
1760 cpu_abort(env, "Fix interval timer interrupt while in user mode. "
1761 "Aborting\n");
1762 break;
1763 case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
1764 cpu_abort(env, "Watchdog timer interrupt while in user mode. "
1765 "Aborting\n");
1766 break;
1767 case POWERPC_EXCP_DTLB: /* Data TLB error */
1768 cpu_abort(env, "Data TLB exception while in user mode. "
1769 "Aborting\n");
1770 break;
1771 case POWERPC_EXCP_ITLB: /* Instruction TLB error */
1772 cpu_abort(env, "Instruction TLB exception while in user mode. "
1773 "Aborting\n");
1774 break;
j_mayere1833e12007-09-29 13:06:16 +00001775 case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */
1776 EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
1777 info.si_signo = TARGET_SIGILL;
1778 info.si_errno = 0;
1779 info.si_code = TARGET_ILL_COPROC;
1780 info._sifields._sigfault._addr = env->nip - 4;
pbrook624f7972008-05-31 16:11:38 +00001781 queue_signal(env, info.si_signo, &info);
j_mayere1833e12007-09-29 13:06:16 +00001782 break;
1783 case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */
1784 cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
1785 break;
1786 case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */
1787 cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
1788 break;
1789 case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */
1790 cpu_abort(env, "Performance monitor exception not handled\n");
1791 break;
1792 case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
1793 cpu_abort(env, "Doorbell interrupt while in user mode. "
1794 "Aborting\n");
1795 break;
1796 case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
1797 cpu_abort(env, "Doorbell critical interrupt while in user mode. "
1798 "Aborting\n");
1799 break;
1800 case POWERPC_EXCP_RESET: /* System reset exception */
1801 cpu_abort(env, "Reset interrupt while in user mode. "
1802 "Aborting\n");
1803 break;
j_mayere1833e12007-09-29 13:06:16 +00001804 case POWERPC_EXCP_DSEG: /* Data segment exception */
1805 cpu_abort(env, "Data segment exception while in user mode. "
1806 "Aborting\n");
1807 break;
1808 case POWERPC_EXCP_ISEG: /* Instruction segment exception */
1809 cpu_abort(env, "Instruction segment exception "
1810 "while in user mode. Aborting\n");
1811 break;
j_mayere85e7c62007-10-18 19:59:49 +00001812 /* PowerPC 64 with hypervisor mode support */
j_mayere1833e12007-09-29 13:06:16 +00001813 case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
1814 cpu_abort(env, "Hypervisor decrementer interrupt "
1815 "while in user mode. Aborting\n");
1816 break;
j_mayere1833e12007-09-29 13:06:16 +00001817 case POWERPC_EXCP_TRACE: /* Trace exception */
1818 /* Nothing to do:
1819 * we use this exception to emulate step-by-step execution mode.
1820 */
1821 break;
j_mayere85e7c62007-10-18 19:59:49 +00001822 /* PowerPC 64 with hypervisor mode support */
j_mayere1833e12007-09-29 13:06:16 +00001823 case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
1824 cpu_abort(env, "Hypervisor data storage exception "
1825 "while in user mode. Aborting\n");
1826 break;
1827 case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */
1828 cpu_abort(env, "Hypervisor instruction storage exception "
1829 "while in user mode. Aborting\n");
1830 break;
1831 case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
1832 cpu_abort(env, "Hypervisor data segment exception "
1833 "while in user mode. Aborting\n");
1834 break;
1835 case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */
1836 cpu_abort(env, "Hypervisor instruction segment exception "
1837 "while in user mode. Aborting\n");
1838 break;
j_mayere1833e12007-09-29 13:06:16 +00001839 case POWERPC_EXCP_VPU: /* Vector unavailable exception */
1840 EXCP_DUMP(env, "No Altivec instructions allowed\n");
1841 info.si_signo = TARGET_SIGILL;
1842 info.si_errno = 0;
1843 info.si_code = TARGET_ILL_COPROC;
1844 info._sifields._sigfault._addr = env->nip - 4;
pbrook624f7972008-05-31 16:11:38 +00001845 queue_signal(env, info.si_signo, &info);
j_mayere1833e12007-09-29 13:06:16 +00001846 break;
1847 case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */
Dong Xu Wangb4916d72011-11-22 18:06:17 +08001848 cpu_abort(env, "Programmable interval timer interrupt "
j_mayere1833e12007-09-29 13:06:16 +00001849 "while in user mode. Aborting\n");
1850 break;
1851 case POWERPC_EXCP_IO: /* IO error exception */
1852 cpu_abort(env, "IO error exception while in user mode. "
1853 "Aborting\n");
1854 break;
1855 case POWERPC_EXCP_RUNM: /* Run mode exception */
1856 cpu_abort(env, "Run mode exception while in user mode. "
1857 "Aborting\n");
1858 break;
1859 case POWERPC_EXCP_EMUL: /* Emulation trap exception */
1860 cpu_abort(env, "Emulation trap exception not handled\n");
1861 break;
1862 case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
1863 cpu_abort(env, "Instruction fetch TLB exception "
1864 "while in user-mode. Aborting");
1865 break;
1866 case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
1867 cpu_abort(env, "Data load TLB exception while in user-mode. "
1868 "Aborting");
1869 break;
1870 case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
1871 cpu_abort(env, "Data store TLB exception while in user-mode. "
1872 "Aborting");
1873 break;
1874 case POWERPC_EXCP_FPA: /* Floating-point assist exception */
1875 cpu_abort(env, "Floating-point assist exception not handled\n");
1876 break;
1877 case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
1878 cpu_abort(env, "Instruction address breakpoint exception "
1879 "not handled\n");
1880 break;
1881 case POWERPC_EXCP_SMI: /* System management interrupt */
1882 cpu_abort(env, "System management interrupt while in user mode. "
1883 "Aborting\n");
1884 break;
1885 case POWERPC_EXCP_THERM: /* Thermal interrupt */
1886 cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
1887 "Aborting\n");
1888 break;
1889 case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */
1890 cpu_abort(env, "Performance monitor exception not handled\n");
1891 break;
1892 case POWERPC_EXCP_VPUA: /* Vector assist exception */
1893 cpu_abort(env, "Vector assist exception not handled\n");
1894 break;
1895 case POWERPC_EXCP_SOFTP: /* Soft patch exception */
1896 cpu_abort(env, "Soft patch exception not handled\n");
1897 break;
1898 case POWERPC_EXCP_MAINT: /* Maintenance exception */
1899 cpu_abort(env, "Maintenance exception while in user mode. "
1900 "Aborting\n");
1901 break;
1902 case POWERPC_EXCP_STOP: /* stop translation */
1903 /* We did invalidate the instruction cache. Go on */
1904 break;
1905 case POWERPC_EXCP_BRANCH: /* branch instruction: */
1906 /* We just stopped because of a branch. Go on */
1907 break;
1908 case POWERPC_EXCP_SYSCALL_USER:
1909 /* system call in user-mode emulation */
bellard67867302003-11-23 17:05:30 +00001910 /* WARNING:
1911 * PPC ABI uses overflow flag in cr0 to signal an error
1912 * in syscalls.
1913 */
1914 env->crf[0] &= ~0x1;
1915 ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4],
1916 env->gpr[5], env->gpr[6], env->gpr[7],
Peter Maydell5945cfc2011-06-16 17:37:13 +01001917 env->gpr[8], 0, 0);
Richard Henderson9e0e2f92011-10-26 09:59:18 -07001918 if (ret == (target_ulong)(-TARGET_QEMU_ESIGRETURN)) {
Nathan Froydbcd49332009-05-12 19:13:18 -07001919 /* Returning from a successful sigreturn syscall.
1920 Avoid corrupting register state. */
1921 break;
1922 }
Richard Henderson9e0e2f92011-10-26 09:59:18 -07001923 if (ret > (target_ulong)(-515)) {
bellard67867302003-11-23 17:05:30 +00001924 env->crf[0] |= 0x1;
1925 ret = -ret;
1926 }
1927 env->gpr[3] = ret;
1928 break;
Nathan Froyd56f066b2009-08-03 08:43:27 -07001929 case POWERPC_EXCP_STCX:
1930 if (do_store_exclusive(env)) {
1931 info.si_signo = TARGET_SIGSEGV;
1932 info.si_errno = 0;
1933 info.si_code = TARGET_SEGV_MAPERR;
1934 info._sifields._sigfault._addr = env->nip;
1935 queue_signal(env, info.si_signo, &info);
1936 }
1937 break;
aurel3271f75752008-11-14 17:05:54 +00001938 case EXCP_DEBUG:
1939 {
1940 int sig;
1941
Andreas Färberdb6b81d2013-06-27 19:49:31 +02001942 sig = gdb_handlesig(cs, TARGET_SIGTRAP);
aurel3271f75752008-11-14 17:05:54 +00001943 if (sig) {
1944 info.si_signo = sig;
1945 info.si_errno = 0;
1946 info.si_code = TARGET_TRAP_BRKPT;
1947 queue_signal(env, info.si_signo, &info);
1948 }
1949 }
1950 break;
j_mayer56ba31f2007-09-30 15:15:18 +00001951 case EXCP_INTERRUPT:
1952 /* just indicate that signals should be handled asap */
1953 break;
bellard67867302003-11-23 17:05:30 +00001954 default:
j_mayere1833e12007-09-29 13:06:16 +00001955 cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
1956 break;
bellard67867302003-11-23 17:05:30 +00001957 }
1958 process_pending_signals(env);
1959 }
1960}
1961#endif
1962
bellard048f6b42005-11-26 18:47:20 +00001963#ifdef TARGET_MIPS
1964
Richard Hendersonff4f7382013-02-10 10:30:45 -08001965# ifdef TARGET_ABI_MIPSO32
1966# define MIPS_SYS(name, args) args,
bellard048f6b42005-11-26 18:47:20 +00001967static const uint8_t mips_syscall_args[] = {
An-Cheng Huang29fb0f22011-08-09 12:31:41 -07001968 MIPS_SYS(sys_syscall , 8) /* 4000 */
bellard048f6b42005-11-26 18:47:20 +00001969 MIPS_SYS(sys_exit , 1)
1970 MIPS_SYS(sys_fork , 0)
1971 MIPS_SYS(sys_read , 3)
1972 MIPS_SYS(sys_write , 3)
1973 MIPS_SYS(sys_open , 3) /* 4005 */
1974 MIPS_SYS(sys_close , 1)
1975 MIPS_SYS(sys_waitpid , 3)
1976 MIPS_SYS(sys_creat , 2)
1977 MIPS_SYS(sys_link , 2)
1978 MIPS_SYS(sys_unlink , 1) /* 4010 */
1979 MIPS_SYS(sys_execve , 0)
1980 MIPS_SYS(sys_chdir , 1)
1981 MIPS_SYS(sys_time , 1)
1982 MIPS_SYS(sys_mknod , 3)
1983 MIPS_SYS(sys_chmod , 2) /* 4015 */
1984 MIPS_SYS(sys_lchown , 3)
1985 MIPS_SYS(sys_ni_syscall , 0)
1986 MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */
1987 MIPS_SYS(sys_lseek , 3)
1988 MIPS_SYS(sys_getpid , 0) /* 4020 */
1989 MIPS_SYS(sys_mount , 5)
Richard Henderson868e34d2013-07-24 09:50:01 -10001990 MIPS_SYS(sys_umount , 1)
bellard048f6b42005-11-26 18:47:20 +00001991 MIPS_SYS(sys_setuid , 1)
1992 MIPS_SYS(sys_getuid , 0)
1993 MIPS_SYS(sys_stime , 1) /* 4025 */
1994 MIPS_SYS(sys_ptrace , 4)
1995 MIPS_SYS(sys_alarm , 1)
1996 MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */
1997 MIPS_SYS(sys_pause , 0)
1998 MIPS_SYS(sys_utime , 2) /* 4030 */
1999 MIPS_SYS(sys_ni_syscall , 0)
2000 MIPS_SYS(sys_ni_syscall , 0)
2001 MIPS_SYS(sys_access , 2)
2002 MIPS_SYS(sys_nice , 1)
2003 MIPS_SYS(sys_ni_syscall , 0) /* 4035 */
2004 MIPS_SYS(sys_sync , 0)
2005 MIPS_SYS(sys_kill , 2)
2006 MIPS_SYS(sys_rename , 2)
2007 MIPS_SYS(sys_mkdir , 2)
2008 MIPS_SYS(sys_rmdir , 1) /* 4040 */
2009 MIPS_SYS(sys_dup , 1)
2010 MIPS_SYS(sys_pipe , 0)
2011 MIPS_SYS(sys_times , 1)
2012 MIPS_SYS(sys_ni_syscall , 0)
2013 MIPS_SYS(sys_brk , 1) /* 4045 */
2014 MIPS_SYS(sys_setgid , 1)
2015 MIPS_SYS(sys_getgid , 0)
2016 MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */
2017 MIPS_SYS(sys_geteuid , 0)
2018 MIPS_SYS(sys_getegid , 0) /* 4050 */
2019 MIPS_SYS(sys_acct , 0)
Richard Henderson868e34d2013-07-24 09:50:01 -10002020 MIPS_SYS(sys_umount2 , 2)
bellard048f6b42005-11-26 18:47:20 +00002021 MIPS_SYS(sys_ni_syscall , 0)
2022 MIPS_SYS(sys_ioctl , 3)
2023 MIPS_SYS(sys_fcntl , 3) /* 4055 */
2024 MIPS_SYS(sys_ni_syscall , 2)
2025 MIPS_SYS(sys_setpgid , 2)
2026 MIPS_SYS(sys_ni_syscall , 0)
2027 MIPS_SYS(sys_olduname , 1)
2028 MIPS_SYS(sys_umask , 1) /* 4060 */
2029 MIPS_SYS(sys_chroot , 1)
2030 MIPS_SYS(sys_ustat , 2)
2031 MIPS_SYS(sys_dup2 , 2)
2032 MIPS_SYS(sys_getppid , 0)
2033 MIPS_SYS(sys_getpgrp , 0) /* 4065 */
2034 MIPS_SYS(sys_setsid , 0)
2035 MIPS_SYS(sys_sigaction , 3)
2036 MIPS_SYS(sys_sgetmask , 0)
2037 MIPS_SYS(sys_ssetmask , 1)
2038 MIPS_SYS(sys_setreuid , 2) /* 4070 */
2039 MIPS_SYS(sys_setregid , 2)
2040 MIPS_SYS(sys_sigsuspend , 0)
2041 MIPS_SYS(sys_sigpending , 1)
2042 MIPS_SYS(sys_sethostname , 2)
2043 MIPS_SYS(sys_setrlimit , 2) /* 4075 */
2044 MIPS_SYS(sys_getrlimit , 2)
2045 MIPS_SYS(sys_getrusage , 2)
2046 MIPS_SYS(sys_gettimeofday, 2)
2047 MIPS_SYS(sys_settimeofday, 2)
2048 MIPS_SYS(sys_getgroups , 2) /* 4080 */
2049 MIPS_SYS(sys_setgroups , 2)
2050 MIPS_SYS(sys_ni_syscall , 0) /* old_select */
2051 MIPS_SYS(sys_symlink , 2)
2052 MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */
2053 MIPS_SYS(sys_readlink , 3) /* 4085 */
2054 MIPS_SYS(sys_uselib , 1)
2055 MIPS_SYS(sys_swapon , 2)
2056 MIPS_SYS(sys_reboot , 3)
2057 MIPS_SYS(old_readdir , 3)
2058 MIPS_SYS(old_mmap , 6) /* 4090 */
2059 MIPS_SYS(sys_munmap , 2)
2060 MIPS_SYS(sys_truncate , 2)
2061 MIPS_SYS(sys_ftruncate , 2)
2062 MIPS_SYS(sys_fchmod , 2)
2063 MIPS_SYS(sys_fchown , 3) /* 4095 */
2064 MIPS_SYS(sys_getpriority , 2)
2065 MIPS_SYS(sys_setpriority , 3)
2066 MIPS_SYS(sys_ni_syscall , 0)
2067 MIPS_SYS(sys_statfs , 2)
2068 MIPS_SYS(sys_fstatfs , 2) /* 4100 */
2069 MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */
2070 MIPS_SYS(sys_socketcall , 2)
2071 MIPS_SYS(sys_syslog , 3)
2072 MIPS_SYS(sys_setitimer , 3)
2073 MIPS_SYS(sys_getitimer , 2) /* 4105 */
2074 MIPS_SYS(sys_newstat , 2)
2075 MIPS_SYS(sys_newlstat , 2)
2076 MIPS_SYS(sys_newfstat , 2)
2077 MIPS_SYS(sys_uname , 1)
2078 MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */
2079 MIPS_SYS(sys_vhangup , 0)
2080 MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */
2081 MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */
2082 MIPS_SYS(sys_wait4 , 4)
2083 MIPS_SYS(sys_swapoff , 1) /* 4115 */
2084 MIPS_SYS(sys_sysinfo , 1)
2085 MIPS_SYS(sys_ipc , 6)
2086 MIPS_SYS(sys_fsync , 1)
2087 MIPS_SYS(sys_sigreturn , 0)
Paul Brook18113962009-07-09 13:11:52 +01002088 MIPS_SYS(sys_clone , 6) /* 4120 */
bellard048f6b42005-11-26 18:47:20 +00002089 MIPS_SYS(sys_setdomainname, 2)
2090 MIPS_SYS(sys_newuname , 1)
2091 MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */
2092 MIPS_SYS(sys_adjtimex , 1)
2093 MIPS_SYS(sys_mprotect , 3) /* 4125 */
2094 MIPS_SYS(sys_sigprocmask , 3)
2095 MIPS_SYS(sys_ni_syscall , 0) /* was create_module */
2096 MIPS_SYS(sys_init_module , 5)
2097 MIPS_SYS(sys_delete_module, 1)
2098 MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */
2099 MIPS_SYS(sys_quotactl , 0)
2100 MIPS_SYS(sys_getpgid , 1)
2101 MIPS_SYS(sys_fchdir , 1)
2102 MIPS_SYS(sys_bdflush , 2)
2103 MIPS_SYS(sys_sysfs , 3) /* 4135 */
2104 MIPS_SYS(sys_personality , 1)
2105 MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */
2106 MIPS_SYS(sys_setfsuid , 1)
2107 MIPS_SYS(sys_setfsgid , 1)
2108 MIPS_SYS(sys_llseek , 5) /* 4140 */
2109 MIPS_SYS(sys_getdents , 3)
2110 MIPS_SYS(sys_select , 5)
2111 MIPS_SYS(sys_flock , 2)
2112 MIPS_SYS(sys_msync , 3)
2113 MIPS_SYS(sys_readv , 3) /* 4145 */
2114 MIPS_SYS(sys_writev , 3)
2115 MIPS_SYS(sys_cacheflush , 3)
2116 MIPS_SYS(sys_cachectl , 3)
2117 MIPS_SYS(sys_sysmips , 4)
2118 MIPS_SYS(sys_ni_syscall , 0) /* 4150 */
2119 MIPS_SYS(sys_getsid , 1)
2120 MIPS_SYS(sys_fdatasync , 0)
2121 MIPS_SYS(sys_sysctl , 1)
2122 MIPS_SYS(sys_mlock , 2)
2123 MIPS_SYS(sys_munlock , 2) /* 4155 */
2124 MIPS_SYS(sys_mlockall , 1)
2125 MIPS_SYS(sys_munlockall , 0)
2126 MIPS_SYS(sys_sched_setparam, 2)
2127 MIPS_SYS(sys_sched_getparam, 2)
2128 MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */
2129 MIPS_SYS(sys_sched_getscheduler, 1)
2130 MIPS_SYS(sys_sched_yield , 0)
2131 MIPS_SYS(sys_sched_get_priority_max, 1)
2132 MIPS_SYS(sys_sched_get_priority_min, 1)
2133 MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */
2134 MIPS_SYS(sys_nanosleep, 2)
Petar Jovanovicb0932e02013-07-23 19:00:10 +02002135 MIPS_SYS(sys_mremap , 5)
bellard048f6b42005-11-26 18:47:20 +00002136 MIPS_SYS(sys_accept , 3)
2137 MIPS_SYS(sys_bind , 3)
2138 MIPS_SYS(sys_connect , 3) /* 4170 */
2139 MIPS_SYS(sys_getpeername , 3)
2140 MIPS_SYS(sys_getsockname , 3)
2141 MIPS_SYS(sys_getsockopt , 5)
2142 MIPS_SYS(sys_listen , 2)
2143 MIPS_SYS(sys_recv , 4) /* 4175 */
2144 MIPS_SYS(sys_recvfrom , 6)
2145 MIPS_SYS(sys_recvmsg , 3)
2146 MIPS_SYS(sys_send , 4)
2147 MIPS_SYS(sys_sendmsg , 3)
2148 MIPS_SYS(sys_sendto , 6) /* 4180 */
2149 MIPS_SYS(sys_setsockopt , 5)
2150 MIPS_SYS(sys_shutdown , 2)
2151 MIPS_SYS(sys_socket , 3)
2152 MIPS_SYS(sys_socketpair , 4)
2153 MIPS_SYS(sys_setresuid , 3) /* 4185 */
2154 MIPS_SYS(sys_getresuid , 3)
2155 MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */
2156 MIPS_SYS(sys_poll , 3)
2157 MIPS_SYS(sys_nfsservctl , 3)
2158 MIPS_SYS(sys_setresgid , 3) /* 4190 */
2159 MIPS_SYS(sys_getresgid , 3)
2160 MIPS_SYS(sys_prctl , 5)
2161 MIPS_SYS(sys_rt_sigreturn, 0)
2162 MIPS_SYS(sys_rt_sigaction, 4)
2163 MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */
2164 MIPS_SYS(sys_rt_sigpending, 2)
2165 MIPS_SYS(sys_rt_sigtimedwait, 4)
2166 MIPS_SYS(sys_rt_sigqueueinfo, 3)
2167 MIPS_SYS(sys_rt_sigsuspend, 0)
2168 MIPS_SYS(sys_pread64 , 6) /* 4200 */
2169 MIPS_SYS(sys_pwrite64 , 6)
2170 MIPS_SYS(sys_chown , 3)
2171 MIPS_SYS(sys_getcwd , 2)
2172 MIPS_SYS(sys_capget , 2)
2173 MIPS_SYS(sys_capset , 2) /* 4205 */
Wesley W. Terpstra053ebb22011-07-12 14:32:31 +03002174 MIPS_SYS(sys_sigaltstack , 2)
bellard048f6b42005-11-26 18:47:20 +00002175 MIPS_SYS(sys_sendfile , 4)
2176 MIPS_SYS(sys_ni_syscall , 0)
2177 MIPS_SYS(sys_ni_syscall , 0)
2178 MIPS_SYS(sys_mmap2 , 6) /* 4210 */
2179 MIPS_SYS(sys_truncate64 , 4)
2180 MIPS_SYS(sys_ftruncate64 , 4)
2181 MIPS_SYS(sys_stat64 , 2)
2182 MIPS_SYS(sys_lstat64 , 2)
2183 MIPS_SYS(sys_fstat64 , 2) /* 4215 */
2184 MIPS_SYS(sys_pivot_root , 2)
2185 MIPS_SYS(sys_mincore , 3)
2186 MIPS_SYS(sys_madvise , 3)
2187 MIPS_SYS(sys_getdents64 , 3)
2188 MIPS_SYS(sys_fcntl64 , 3) /* 4220 */
2189 MIPS_SYS(sys_ni_syscall , 0)
2190 MIPS_SYS(sys_gettid , 0)
2191 MIPS_SYS(sys_readahead , 5)
2192 MIPS_SYS(sys_setxattr , 5)
2193 MIPS_SYS(sys_lsetxattr , 5) /* 4225 */
2194 MIPS_SYS(sys_fsetxattr , 5)
2195 MIPS_SYS(sys_getxattr , 4)
2196 MIPS_SYS(sys_lgetxattr , 4)
2197 MIPS_SYS(sys_fgetxattr , 4)
2198 MIPS_SYS(sys_listxattr , 3) /* 4230 */
2199 MIPS_SYS(sys_llistxattr , 3)
2200 MIPS_SYS(sys_flistxattr , 3)
2201 MIPS_SYS(sys_removexattr , 2)
2202 MIPS_SYS(sys_lremovexattr, 2)
2203 MIPS_SYS(sys_fremovexattr, 2) /* 4235 */
2204 MIPS_SYS(sys_tkill , 2)
2205 MIPS_SYS(sys_sendfile64 , 5)
Petar Jovanovic43be1342013-07-15 15:17:40 +02002206 MIPS_SYS(sys_futex , 6)
bellard048f6b42005-11-26 18:47:20 +00002207 MIPS_SYS(sys_sched_setaffinity, 3)
2208 MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */
2209 MIPS_SYS(sys_io_setup , 2)
2210 MIPS_SYS(sys_io_destroy , 1)
2211 MIPS_SYS(sys_io_getevents, 5)
2212 MIPS_SYS(sys_io_submit , 3)
2213 MIPS_SYS(sys_io_cancel , 3) /* 4245 */
2214 MIPS_SYS(sys_exit_group , 1)
2215 MIPS_SYS(sys_lookup_dcookie, 3)
2216 MIPS_SYS(sys_epoll_create, 1)
2217 MIPS_SYS(sys_epoll_ctl , 4)
2218 MIPS_SYS(sys_epoll_wait , 3) /* 4250 */
2219 MIPS_SYS(sys_remap_file_pages, 5)
2220 MIPS_SYS(sys_set_tid_address, 1)
2221 MIPS_SYS(sys_restart_syscall, 0)
2222 MIPS_SYS(sys_fadvise64_64, 7)
2223 MIPS_SYS(sys_statfs64 , 3) /* 4255 */
2224 MIPS_SYS(sys_fstatfs64 , 2)
2225 MIPS_SYS(sys_timer_create, 3)
2226 MIPS_SYS(sys_timer_settime, 4)
2227 MIPS_SYS(sys_timer_gettime, 2)
2228 MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */
2229 MIPS_SYS(sys_timer_delete, 1)
2230 MIPS_SYS(sys_clock_settime, 2)
2231 MIPS_SYS(sys_clock_gettime, 2)
2232 MIPS_SYS(sys_clock_getres, 2)
2233 MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */
2234 MIPS_SYS(sys_tgkill , 3)
2235 MIPS_SYS(sys_utimes , 2)
2236 MIPS_SYS(sys_mbind , 4)
2237 MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */
2238 MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */
2239 MIPS_SYS(sys_mq_open , 4)
2240 MIPS_SYS(sys_mq_unlink , 1)
2241 MIPS_SYS(sys_mq_timedsend, 5)
2242 MIPS_SYS(sys_mq_timedreceive, 5)
2243 MIPS_SYS(sys_mq_notify , 2) /* 4275 */
2244 MIPS_SYS(sys_mq_getsetattr, 3)
2245 MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */
2246 MIPS_SYS(sys_waitid , 4)
2247 MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */
2248 MIPS_SYS(sys_add_key , 5)
ths388bb212007-05-13 13:58:00 +00002249 MIPS_SYS(sys_request_key, 4)
bellard048f6b42005-11-26 18:47:20 +00002250 MIPS_SYS(sys_keyctl , 5)
ths6f5b89a2007-03-02 20:48:00 +00002251 MIPS_SYS(sys_set_thread_area, 1)
ths388bb212007-05-13 13:58:00 +00002252 MIPS_SYS(sys_inotify_init, 0)
2253 MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */
2254 MIPS_SYS(sys_inotify_rm_watch, 2)
2255 MIPS_SYS(sys_migrate_pages, 4)
2256 MIPS_SYS(sys_openat, 4)
2257 MIPS_SYS(sys_mkdirat, 3)
2258 MIPS_SYS(sys_mknodat, 4) /* 4290 */
2259 MIPS_SYS(sys_fchownat, 5)
2260 MIPS_SYS(sys_futimesat, 3)
2261 MIPS_SYS(sys_fstatat64, 4)
2262 MIPS_SYS(sys_unlinkat, 3)
2263 MIPS_SYS(sys_renameat, 4) /* 4295 */
2264 MIPS_SYS(sys_linkat, 5)
2265 MIPS_SYS(sys_symlinkat, 3)
2266 MIPS_SYS(sys_readlinkat, 4)
2267 MIPS_SYS(sys_fchmodat, 3)
2268 MIPS_SYS(sys_faccessat, 3) /* 4300 */
2269 MIPS_SYS(sys_pselect6, 6)
2270 MIPS_SYS(sys_ppoll, 5)
2271 MIPS_SYS(sys_unshare, 1)
Petar Jovanovicb0932e02013-07-23 19:00:10 +02002272 MIPS_SYS(sys_splice, 6)
ths388bb212007-05-13 13:58:00 +00002273 MIPS_SYS(sys_sync_file_range, 7) /* 4305 */
2274 MIPS_SYS(sys_tee, 4)
2275 MIPS_SYS(sys_vmsplice, 4)
2276 MIPS_SYS(sys_move_pages, 6)
2277 MIPS_SYS(sys_set_robust_list, 2)
2278 MIPS_SYS(sys_get_robust_list, 3) /* 4310 */
2279 MIPS_SYS(sys_kexec_load, 4)
2280 MIPS_SYS(sys_getcpu, 3)
2281 MIPS_SYS(sys_epoll_pwait, 6)
2282 MIPS_SYS(sys_ioprio_set, 3)
2283 MIPS_SYS(sys_ioprio_get, 2)
Peter Maydelld979e8e2011-06-27 17:44:51 +01002284 MIPS_SYS(sys_utimensat, 4)
2285 MIPS_SYS(sys_signalfd, 3)
2286 MIPS_SYS(sys_ni_syscall, 0) /* was timerfd */
2287 MIPS_SYS(sys_eventfd, 1)
2288 MIPS_SYS(sys_fallocate, 6) /* 4320 */
2289 MIPS_SYS(sys_timerfd_create, 2)
2290 MIPS_SYS(sys_timerfd_gettime, 2)
2291 MIPS_SYS(sys_timerfd_settime, 4)
2292 MIPS_SYS(sys_signalfd4, 4)
2293 MIPS_SYS(sys_eventfd2, 2) /* 4325 */
2294 MIPS_SYS(sys_epoll_create1, 1)
2295 MIPS_SYS(sys_dup3, 3)
2296 MIPS_SYS(sys_pipe2, 2)
2297 MIPS_SYS(sys_inotify_init1, 1)
2298 MIPS_SYS(sys_preadv, 6) /* 4330 */
2299 MIPS_SYS(sys_pwritev, 6)
2300 MIPS_SYS(sys_rt_tgsigqueueinfo, 4)
2301 MIPS_SYS(sys_perf_event_open, 5)
2302 MIPS_SYS(sys_accept4, 4)
2303 MIPS_SYS(sys_recvmmsg, 5) /* 4335 */
2304 MIPS_SYS(sys_fanotify_init, 2)
2305 MIPS_SYS(sys_fanotify_mark, 6)
2306 MIPS_SYS(sys_prlimit64, 4)
2307 MIPS_SYS(sys_name_to_handle_at, 5)
2308 MIPS_SYS(sys_open_by_handle_at, 3) /* 4340 */
2309 MIPS_SYS(sys_clock_adjtime, 2)
2310 MIPS_SYS(sys_syncfs, 1)
bellard048f6b42005-11-26 18:47:20 +00002311};
Richard Hendersonff4f7382013-02-10 10:30:45 -08002312# undef MIPS_SYS
2313# endif /* O32 */
bellard048f6b42005-11-26 18:47:20 +00002314
Paul Brook590bc602009-07-09 17:45:17 +01002315static int do_store_exclusive(CPUMIPSState *env)
2316{
2317 target_ulong addr;
2318 target_ulong page_addr;
2319 target_ulong val;
2320 int flags;
2321 int segv = 0;
2322 int reg;
2323 int d;
2324
Aurelien Jarno5499b6f2009-11-22 13:08:14 +01002325 addr = env->lladdr;
Paul Brook590bc602009-07-09 17:45:17 +01002326 page_addr = addr & TARGET_PAGE_MASK;
2327 start_exclusive();
2328 mmap_lock();
2329 flags = page_get_flags(page_addr);
2330 if ((flags & PAGE_READ) == 0) {
2331 segv = 1;
2332 } else {
2333 reg = env->llreg & 0x1f;
2334 d = (env->llreg & 0x20) != 0;
2335 if (d) {
2336 segv = get_user_s64(val, addr);
2337 } else {
2338 segv = get_user_s32(val, addr);
2339 }
2340 if (!segv) {
2341 if (val != env->llval) {
2342 env->active_tc.gpr[reg] = 0;
2343 } else {
2344 if (d) {
2345 segv = put_user_u64(env->llnewval, addr);
2346 } else {
2347 segv = put_user_u32(env->llnewval, addr);
2348 }
2349 if (!segv) {
2350 env->active_tc.gpr[reg] = 1;
2351 }
2352 }
2353 }
2354 }
Aurelien Jarno5499b6f2009-11-22 13:08:14 +01002355 env->lladdr = -1;
Paul Brook590bc602009-07-09 17:45:17 +01002356 if (!segv) {
2357 env->active_tc.PC += 4;
2358 }
2359 mmap_unlock();
2360 end_exclusive();
2361 return segv;
2362}
2363
Meador Inge54b2f422013-01-10 16:50:22 -06002364/* Break codes */
2365enum {
2366 BRK_OVERFLOW = 6,
2367 BRK_DIVZERO = 7
2368};
2369
2370static int do_break(CPUMIPSState *env, target_siginfo_t *info,
2371 unsigned int code)
2372{
2373 int ret = -1;
2374
2375 switch (code) {
2376 case BRK_OVERFLOW:
2377 case BRK_DIVZERO:
2378 info->si_signo = TARGET_SIGFPE;
2379 info->si_errno = 0;
2380 info->si_code = (code == BRK_OVERFLOW) ? FPE_INTOVF : FPE_INTDIV;
2381 queue_signal(env, info->si_signo, &*info);
2382 ret = 0;
2383 break;
2384 default:
2385 break;
2386 }
2387
2388 return ret;
2389}
2390
bellard048f6b42005-11-26 18:47:20 +00002391void cpu_loop(CPUMIPSState *env)
2392{
Andreas Färber0315c312012-12-17 07:34:52 +01002393 CPUState *cs = CPU(mips_env_get_cpu(env));
Anthony Liguoric227f092009-10-01 16:12:16 -05002394 target_siginfo_t info;
Richard Hendersonff4f7382013-02-10 10:30:45 -08002395 int trapnr;
2396 abi_long ret;
2397# ifdef TARGET_ABI_MIPSO32
bellard048f6b42005-11-26 18:47:20 +00002398 unsigned int syscall_num;
Richard Hendersonff4f7382013-02-10 10:30:45 -08002399# endif
bellard048f6b42005-11-26 18:47:20 +00002400
2401 for(;;) {
Andreas Färber0315c312012-12-17 07:34:52 +01002402 cpu_exec_start(cs);
bellard048f6b42005-11-26 18:47:20 +00002403 trapnr = cpu_mips_exec(env);
Andreas Färber0315c312012-12-17 07:34:52 +01002404 cpu_exec_end(cs);
bellard048f6b42005-11-26 18:47:20 +00002405 switch(trapnr) {
2406 case EXCP_SYSCALL:
thsb5dc7732008-06-27 10:02:35 +00002407 env->active_tc.PC += 4;
Richard Hendersonff4f7382013-02-10 10:30:45 -08002408# ifdef TARGET_ABI_MIPSO32
2409 syscall_num = env->active_tc.gpr[2] - 4000;
ths388bb212007-05-13 13:58:00 +00002410 if (syscall_num >= sizeof(mips_syscall_args)) {
Wesley W. Terpstra7c2f6152011-07-12 14:33:23 +03002411 ret = -TARGET_ENOSYS;
ths388bb212007-05-13 13:58:00 +00002412 } else {
2413 int nb_args;
blueswir1992f48a2007-10-14 16:27:31 +00002414 abi_ulong sp_reg;
2415 abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0;
ths388bb212007-05-13 13:58:00 +00002416
2417 nb_args = mips_syscall_args[syscall_num];
thsb5dc7732008-06-27 10:02:35 +00002418 sp_reg = env->active_tc.gpr[29];
ths388bb212007-05-13 13:58:00 +00002419 switch (nb_args) {
2420 /* these arguments are taken from the stack */
An-Cheng Huang94c19612011-08-09 12:32:38 -07002421 case 8:
2422 if ((ret = get_user_ual(arg8, sp_reg + 28)) != 0) {
2423 goto done_syscall;
2424 }
2425 case 7:
2426 if ((ret = get_user_ual(arg7, sp_reg + 24)) != 0) {
2427 goto done_syscall;
2428 }
2429 case 6:
2430 if ((ret = get_user_ual(arg6, sp_reg + 20)) != 0) {
2431 goto done_syscall;
2432 }
2433 case 5:
2434 if ((ret = get_user_ual(arg5, sp_reg + 16)) != 0) {
2435 goto done_syscall;
2436 }
ths388bb212007-05-13 13:58:00 +00002437 default:
2438 break;
bellard048f6b42005-11-26 18:47:20 +00002439 }
thsb5dc7732008-06-27 10:02:35 +00002440 ret = do_syscall(env, env->active_tc.gpr[2],
2441 env->active_tc.gpr[4],
2442 env->active_tc.gpr[5],
2443 env->active_tc.gpr[6],
2444 env->active_tc.gpr[7],
Peter Maydell5945cfc2011-06-16 17:37:13 +01002445 arg5, arg6, arg7, arg8);
bellard048f6b42005-11-26 18:47:20 +00002446 }
An-Cheng Huang94c19612011-08-09 12:32:38 -07002447done_syscall:
Richard Hendersonff4f7382013-02-10 10:30:45 -08002448# else
2449 ret = do_syscall(env, env->active_tc.gpr[2],
2450 env->active_tc.gpr[4], env->active_tc.gpr[5],
2451 env->active_tc.gpr[6], env->active_tc.gpr[7],
2452 env->active_tc.gpr[8], env->active_tc.gpr[9],
2453 env->active_tc.gpr[10], env->active_tc.gpr[11]);
2454# endif /* O32 */
pbrook0b1bcb02009-04-21 01:41:10 +00002455 if (ret == -TARGET_QEMU_ESIGRETURN) {
2456 /* Returning from a successful sigreturn syscall.
2457 Avoid clobbering register state. */
2458 break;
2459 }
Richard Hendersonff4f7382013-02-10 10:30:45 -08002460 if ((abi_ulong)ret >= (abi_ulong)-1133) {
thsb5dc7732008-06-27 10:02:35 +00002461 env->active_tc.gpr[7] = 1; /* error flag */
ths388bb212007-05-13 13:58:00 +00002462 ret = -ret;
2463 } else {
thsb5dc7732008-06-27 10:02:35 +00002464 env->active_tc.gpr[7] = 0; /* error flag */
ths388bb212007-05-13 13:58:00 +00002465 }
thsb5dc7732008-06-27 10:02:35 +00002466 env->active_tc.gpr[2] = ret;
bellard048f6b42005-11-26 18:47:20 +00002467 break;
thsca7c2b12006-12-10 22:08:10 +00002468 case EXCP_TLBL:
2469 case EXCP_TLBS:
Wesley W. Terpstrae6e5bd22011-07-12 14:34:23 +03002470 case EXCP_AdEL:
2471 case EXCP_AdES:
pbrooke4474232009-04-21 01:03:10 +00002472 info.si_signo = TARGET_SIGSEGV;
2473 info.si_errno = 0;
2474 /* XXX: check env->error_code */
2475 info.si_code = TARGET_SEGV_MAPERR;
2476 info._sifields._sigfault._addr = env->CP0_BadVAddr;
2477 queue_signal(env, info.si_signo, &info);
2478 break;
bellard6900e842005-12-05 21:04:24 +00002479 case EXCP_CpU:
bellard048f6b42005-11-26 18:47:20 +00002480 case EXCP_RI:
bellardbc1ad2d2006-06-14 13:37:55 +00002481 info.si_signo = TARGET_SIGILL;
2482 info.si_errno = 0;
2483 info.si_code = 0;
pbrook624f7972008-05-31 16:11:38 +00002484 queue_signal(env, info.si_signo, &info);
bellard048f6b42005-11-26 18:47:20 +00002485 break;
bellard106ec872006-06-27 21:08:10 +00002486 case EXCP_INTERRUPT:
2487 /* just indicate that signals should be handled asap */
2488 break;
pbrookd08b2a22006-11-04 16:46:29 +00002489 case EXCP_DEBUG:
2490 {
2491 int sig;
2492
Andreas Färberdb6b81d2013-06-27 19:49:31 +02002493 sig = gdb_handlesig(cs, TARGET_SIGTRAP);
pbrookd08b2a22006-11-04 16:46:29 +00002494 if (sig)
2495 {
2496 info.si_signo = sig;
2497 info.si_errno = 0;
2498 info.si_code = TARGET_TRAP_BRKPT;
pbrook624f7972008-05-31 16:11:38 +00002499 queue_signal(env, info.si_signo, &info);
pbrookd08b2a22006-11-04 16:46:29 +00002500 }
2501 }
2502 break;
Paul Brook590bc602009-07-09 17:45:17 +01002503 case EXCP_SC:
2504 if (do_store_exclusive(env)) {
2505 info.si_signo = TARGET_SIGSEGV;
2506 info.si_errno = 0;
2507 info.si_code = TARGET_SEGV_MAPERR;
2508 info._sifields._sigfault._addr = env->active_tc.PC;
2509 queue_signal(env, info.si_signo, &info);
2510 }
2511 break;
Jia Liu853c3242012-10-24 22:17:02 +08002512 case EXCP_DSPDIS:
2513 info.si_signo = TARGET_SIGILL;
2514 info.si_errno = 0;
2515 info.si_code = TARGET_ILL_ILLOPC;
2516 queue_signal(env, info.si_signo, &info);
2517 break;
Meador Inge54b2f422013-01-10 16:50:22 -06002518 /* The code below was inspired by the MIPS Linux kernel trap
2519 * handling code in arch/mips/kernel/traps.c.
2520 */
2521 case EXCP_BREAK:
2522 {
2523 abi_ulong trap_instr;
2524 unsigned int code;
2525
Kwok Cheung Yeunga0333812013-07-19 09:21:44 -07002526 if (env->hflags & MIPS_HFLAG_M16) {
2527 if (env->insn_flags & ASE_MICROMIPS) {
2528 /* microMIPS mode */
Kwok Cheung Yeung1308c462013-09-09 17:36:40 -07002529 ret = get_user_u16(trap_instr, env->active_tc.PC);
2530 if (ret != 0) {
2531 goto error;
2532 }
Kwok Cheung Yeunga0333812013-07-19 09:21:44 -07002533
Kwok Cheung Yeung1308c462013-09-09 17:36:40 -07002534 if ((trap_instr >> 10) == 0x11) {
2535 /* 16-bit instruction */
2536 code = trap_instr & 0xf;
2537 } else {
2538 /* 32-bit instruction */
2539 abi_ulong instr_lo;
Kwok Cheung Yeunga0333812013-07-19 09:21:44 -07002540
Kwok Cheung Yeung1308c462013-09-09 17:36:40 -07002541 ret = get_user_u16(instr_lo,
2542 env->active_tc.PC + 2);
2543 if (ret != 0) {
2544 goto error;
2545 }
2546 trap_instr = (trap_instr << 16) | instr_lo;
2547 code = ((trap_instr >> 6) & ((1 << 20) - 1));
2548 /* Unfortunately, microMIPS also suffers from
2549 the old assembler bug... */
2550 if (code >= (1 << 10)) {
2551 code >>= 10;
2552 }
2553 }
Kwok Cheung Yeunga0333812013-07-19 09:21:44 -07002554 } else {
2555 /* MIPS16e mode */
2556 ret = get_user_u16(trap_instr, env->active_tc.PC);
2557 if (ret != 0) {
2558 goto error;
2559 }
2560 code = (trap_instr >> 6) & 0x3f;
Kwok Cheung Yeunga0333812013-07-19 09:21:44 -07002561 }
2562 } else {
2563 ret = get_user_ual(trap_instr, env->active_tc.PC);
Kwok Cheung Yeung1308c462013-09-09 17:36:40 -07002564 if (ret != 0) {
2565 goto error;
2566 }
Kwok Cheung Yeunga0333812013-07-19 09:21:44 -07002567
Kwok Cheung Yeung1308c462013-09-09 17:36:40 -07002568 /* As described in the original Linux kernel code, the
2569 * below checks on 'code' are to work around an old
2570 * assembly bug.
2571 */
2572 code = ((trap_instr >> 6) & ((1 << 20) - 1));
2573 if (code >= (1 << 10)) {
2574 code >>= 10;
2575 }
Meador Inge54b2f422013-01-10 16:50:22 -06002576 }
2577
2578 if (do_break(env, &info, code) != 0) {
2579 goto error;
2580 }
2581 }
2582 break;
2583 case EXCP_TRAP:
2584 {
2585 abi_ulong trap_instr;
2586 unsigned int code = 0;
2587
Kwok Cheung Yeunga0333812013-07-19 09:21:44 -07002588 if (env->hflags & MIPS_HFLAG_M16) {
2589 /* microMIPS mode */
2590 abi_ulong instr[2];
2591
2592 ret = get_user_u16(instr[0], env->active_tc.PC) ||
2593 get_user_u16(instr[1], env->active_tc.PC + 2);
2594
2595 trap_instr = (instr[0] << 16) | instr[1];
2596 } else {
2597 ret = get_user_ual(trap_instr, env->active_tc.PC);
2598 }
2599
Meador Inge54b2f422013-01-10 16:50:22 -06002600 if (ret != 0) {
2601 goto error;
2602 }
2603
2604 /* The immediate versions don't provide a code. */
2605 if (!(trap_instr & 0xFC000000)) {
Kwok Cheung Yeunga0333812013-07-19 09:21:44 -07002606 if (env->hflags & MIPS_HFLAG_M16) {
2607 /* microMIPS mode */
2608 code = ((trap_instr >> 12) & ((1 << 4) - 1));
2609 } else {
2610 code = ((trap_instr >> 6) & ((1 << 10) - 1));
2611 }
Meador Inge54b2f422013-01-10 16:50:22 -06002612 }
2613
2614 if (do_break(env, &info, code) != 0) {
2615 goto error;
2616 }
2617 }
2618 break;
bellard048f6b42005-11-26 18:47:20 +00002619 default:
Meador Inge54b2f422013-01-10 16:50:22 -06002620error:
ths5fafdf22007-09-16 21:08:06 +00002621 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
bellard048f6b42005-11-26 18:47:20 +00002622 trapnr);
Andreas Färber878096e2013-05-27 01:33:50 +02002623 cpu_dump_state(cs, stderr, fprintf, 0);
bellard048f6b42005-11-26 18:47:20 +00002624 abort();
2625 }
2626 process_pending_signals(env);
2627 }
2628}
2629#endif
2630
Jia Liud9627832012-07-20 15:50:52 +08002631#ifdef TARGET_OPENRISC
2632
2633void cpu_loop(CPUOpenRISCState *env)
2634{
Andreas Färber878096e2013-05-27 01:33:50 +02002635 CPUState *cs = CPU(openrisc_env_get_cpu(env));
Jia Liud9627832012-07-20 15:50:52 +08002636 int trapnr, gdbsig;
2637
2638 for (;;) {
2639 trapnr = cpu_exec(env);
2640 gdbsig = 0;
2641
2642 switch (trapnr) {
2643 case EXCP_RESET:
2644 qemu_log("\nReset request, exit, pc is %#x\n", env->pc);
2645 exit(1);
2646 break;
2647 case EXCP_BUSERR:
2648 qemu_log("\nBus error, exit, pc is %#x\n", env->pc);
2649 gdbsig = SIGBUS;
2650 break;
2651 case EXCP_DPF:
2652 case EXCP_IPF:
Andreas Färber878096e2013-05-27 01:33:50 +02002653 cpu_dump_state(cs, stderr, fprintf, 0);
Jia Liud9627832012-07-20 15:50:52 +08002654 gdbsig = TARGET_SIGSEGV;
2655 break;
2656 case EXCP_TICK:
2657 qemu_log("\nTick time interrupt pc is %#x\n", env->pc);
2658 break;
2659 case EXCP_ALIGN:
2660 qemu_log("\nAlignment pc is %#x\n", env->pc);
2661 gdbsig = SIGBUS;
2662 break;
2663 case EXCP_ILLEGAL:
2664 qemu_log("\nIllegal instructionpc is %#x\n", env->pc);
2665 gdbsig = SIGILL;
2666 break;
2667 case EXCP_INT:
2668 qemu_log("\nExternal interruptpc is %#x\n", env->pc);
2669 break;
2670 case EXCP_DTLBMISS:
2671 case EXCP_ITLBMISS:
2672 qemu_log("\nTLB miss\n");
2673 break;
2674 case EXCP_RANGE:
2675 qemu_log("\nRange\n");
2676 gdbsig = SIGSEGV;
2677 break;
2678 case EXCP_SYSCALL:
2679 env->pc += 4; /* 0xc00; */
2680 env->gpr[11] = do_syscall(env,
2681 env->gpr[11], /* return value */
2682 env->gpr[3], /* r3 - r7 are params */
2683 env->gpr[4],
2684 env->gpr[5],
2685 env->gpr[6],
2686 env->gpr[7],
2687 env->gpr[8], 0, 0);
2688 break;
2689 case EXCP_FPE:
2690 qemu_log("\nFloating point error\n");
2691 break;
2692 case EXCP_TRAP:
2693 qemu_log("\nTrap\n");
2694 gdbsig = SIGTRAP;
2695 break;
2696 case EXCP_NR:
2697 qemu_log("\nNR\n");
2698 break;
2699 default:
2700 qemu_log("\nqemu: unhandled CPU exception %#x - aborting\n",
2701 trapnr);
Andreas Färber878096e2013-05-27 01:33:50 +02002702 cpu_dump_state(cs, stderr, fprintf, 0);
Jia Liud9627832012-07-20 15:50:52 +08002703 gdbsig = TARGET_SIGILL;
2704 break;
2705 }
2706 if (gdbsig) {
Andreas Färberdb6b81d2013-06-27 19:49:31 +02002707 gdb_handlesig(cs, gdbsig);
Jia Liud9627832012-07-20 15:50:52 +08002708 if (gdbsig != TARGET_SIGTRAP) {
2709 exit(1);
2710 }
2711 }
2712
2713 process_pending_signals(env);
2714 }
2715}
2716
2717#endif /* TARGET_OPENRISC */
2718
bellardfdf9b3e2006-04-27 21:07:38 +00002719#ifdef TARGET_SH4
Andreas Färber05390242012-02-25 03:37:53 +01002720void cpu_loop(CPUSH4State *env)
bellardfdf9b3e2006-04-27 21:07:38 +00002721{
Andreas Färber878096e2013-05-27 01:33:50 +02002722 CPUState *cs = CPU(sh_env_get_cpu(env));
bellardfdf9b3e2006-04-27 21:07:38 +00002723 int trapnr, ret;
Anthony Liguoric227f092009-10-01 16:12:16 -05002724 target_siginfo_t info;
ths3b46e622007-09-17 08:09:54 +00002725
bellardfdf9b3e2006-04-27 21:07:38 +00002726 while (1) {
2727 trapnr = cpu_sh4_exec (env);
ths3b46e622007-09-17 08:09:54 +00002728
bellardfdf9b3e2006-04-27 21:07:38 +00002729 switch (trapnr) {
2730 case 0x160:
aurel320b6d3ae2008-09-15 07:43:43 +00002731 env->pc += 2;
ths5fafdf22007-09-16 21:08:06 +00002732 ret = do_syscall(env,
2733 env->gregs[3],
2734 env->gregs[4],
2735 env->gregs[5],
2736 env->gregs[6],
2737 env->gregs[7],
2738 env->gregs[0],
Peter Maydell5945cfc2011-06-16 17:37:13 +01002739 env->gregs[1],
2740 0, 0);
pbrook9c2a9ea2006-06-18 19:12:54 +00002741 env->gregs[0] = ret;
bellardfdf9b3e2006-04-27 21:07:38 +00002742 break;
thsc3b5bc82007-12-02 06:31:25 +00002743 case EXCP_INTERRUPT:
2744 /* just indicate that signals should be handled asap */
2745 break;
pbrook355fb232006-06-17 19:58:25 +00002746 case EXCP_DEBUG:
2747 {
2748 int sig;
2749
Andreas Färberdb6b81d2013-06-27 19:49:31 +02002750 sig = gdb_handlesig(cs, TARGET_SIGTRAP);
pbrook355fb232006-06-17 19:58:25 +00002751 if (sig)
2752 {
2753 info.si_signo = sig;
2754 info.si_errno = 0;
2755 info.si_code = TARGET_TRAP_BRKPT;
pbrook624f7972008-05-31 16:11:38 +00002756 queue_signal(env, info.si_signo, &info);
pbrook355fb232006-06-17 19:58:25 +00002757 }
2758 }
2759 break;
thsc3b5bc82007-12-02 06:31:25 +00002760 case 0xa0:
2761 case 0xc0:
2762 info.si_signo = SIGSEGV;
2763 info.si_errno = 0;
2764 info.si_code = TARGET_SEGV_MAPERR;
2765 info._sifields._sigfault._addr = env->tea;
pbrook624f7972008-05-31 16:11:38 +00002766 queue_signal(env, info.si_signo, &info);
thsc3b5bc82007-12-02 06:31:25 +00002767 break;
2768
bellardfdf9b3e2006-04-27 21:07:38 +00002769 default:
2770 printf ("Unhandled trap: 0x%x\n", trapnr);
Andreas Färber878096e2013-05-27 01:33:50 +02002771 cpu_dump_state(cs, stderr, fprintf, 0);
bellardfdf9b3e2006-04-27 21:07:38 +00002772 exit (1);
2773 }
2774 process_pending_signals (env);
2775 }
2776}
2777#endif
2778
ths48733d12007-10-08 13:36:46 +00002779#ifdef TARGET_CRIS
Andreas Färber05390242012-02-25 03:37:53 +01002780void cpu_loop(CPUCRISState *env)
ths48733d12007-10-08 13:36:46 +00002781{
Andreas Färber878096e2013-05-27 01:33:50 +02002782 CPUState *cs = CPU(cris_env_get_cpu(env));
ths48733d12007-10-08 13:36:46 +00002783 int trapnr, ret;
Anthony Liguoric227f092009-10-01 16:12:16 -05002784 target_siginfo_t info;
ths48733d12007-10-08 13:36:46 +00002785
2786 while (1) {
2787 trapnr = cpu_cris_exec (env);
2788 switch (trapnr) {
2789 case 0xaa:
2790 {
2791 info.si_signo = SIGSEGV;
2792 info.si_errno = 0;
2793 /* XXX: check env->error_code */
2794 info.si_code = TARGET_SEGV_MAPERR;
edgar_igle00c1e72008-05-27 21:12:09 +00002795 info._sifields._sigfault._addr = env->pregs[PR_EDA];
pbrook624f7972008-05-31 16:11:38 +00002796 queue_signal(env, info.si_signo, &info);
ths48733d12007-10-08 13:36:46 +00002797 }
2798 break;
edgar_iglb6d3abd2008-02-28 11:29:27 +00002799 case EXCP_INTERRUPT:
2800 /* just indicate that signals should be handled asap */
2801 break;
ths48733d12007-10-08 13:36:46 +00002802 case EXCP_BREAK:
2803 ret = do_syscall(env,
2804 env->regs[9],
2805 env->regs[10],
2806 env->regs[11],
2807 env->regs[12],
2808 env->regs[13],
2809 env->pregs[7],
Peter Maydell5945cfc2011-06-16 17:37:13 +01002810 env->pregs[11],
2811 0, 0);
ths48733d12007-10-08 13:36:46 +00002812 env->regs[10] = ret;
ths48733d12007-10-08 13:36:46 +00002813 break;
2814 case EXCP_DEBUG:
2815 {
2816 int sig;
2817
Andreas Färberdb6b81d2013-06-27 19:49:31 +02002818 sig = gdb_handlesig(cs, TARGET_SIGTRAP);
ths48733d12007-10-08 13:36:46 +00002819 if (sig)
2820 {
2821 info.si_signo = sig;
2822 info.si_errno = 0;
2823 info.si_code = TARGET_TRAP_BRKPT;
pbrook624f7972008-05-31 16:11:38 +00002824 queue_signal(env, info.si_signo, &info);
ths48733d12007-10-08 13:36:46 +00002825 }
2826 }
2827 break;
2828 default:
2829 printf ("Unhandled trap: 0x%x\n", trapnr);
Andreas Färber878096e2013-05-27 01:33:50 +02002830 cpu_dump_state(cs, stderr, fprintf, 0);
ths48733d12007-10-08 13:36:46 +00002831 exit (1);
2832 }
2833 process_pending_signals (env);
2834 }
2835}
2836#endif
2837
Edgar E. Iglesiasb779e292009-05-20 21:31:33 +02002838#ifdef TARGET_MICROBLAZE
Andreas Färber05390242012-02-25 03:37:53 +01002839void cpu_loop(CPUMBState *env)
Edgar E. Iglesiasb779e292009-05-20 21:31:33 +02002840{
Andreas Färber878096e2013-05-27 01:33:50 +02002841 CPUState *cs = CPU(mb_env_get_cpu(env));
Edgar E. Iglesiasb779e292009-05-20 21:31:33 +02002842 int trapnr, ret;
Anthony Liguoric227f092009-10-01 16:12:16 -05002843 target_siginfo_t info;
Edgar E. Iglesiasb779e292009-05-20 21:31:33 +02002844
2845 while (1) {
2846 trapnr = cpu_mb_exec (env);
2847 switch (trapnr) {
2848 case 0xaa:
2849 {
2850 info.si_signo = SIGSEGV;
2851 info.si_errno = 0;
2852 /* XXX: check env->error_code */
2853 info.si_code = TARGET_SEGV_MAPERR;
2854 info._sifields._sigfault._addr = 0;
2855 queue_signal(env, info.si_signo, &info);
2856 }
2857 break;
2858 case EXCP_INTERRUPT:
2859 /* just indicate that signals should be handled asap */
2860 break;
2861 case EXCP_BREAK:
2862 /* Return address is 4 bytes after the call. */
2863 env->regs[14] += 4;
Edgar E. Iglesiasd7dce492012-04-26 14:18:25 +02002864 env->sregs[SR_PC] = env->regs[14];
Edgar E. Iglesiasb779e292009-05-20 21:31:33 +02002865 ret = do_syscall(env,
2866 env->regs[12],
2867 env->regs[5],
2868 env->regs[6],
2869 env->regs[7],
2870 env->regs[8],
2871 env->regs[9],
Peter Maydell5945cfc2011-06-16 17:37:13 +01002872 env->regs[10],
2873 0, 0);
Edgar E. Iglesiasb779e292009-05-20 21:31:33 +02002874 env->regs[3] = ret;
Edgar E. Iglesiasb779e292009-05-20 21:31:33 +02002875 break;
Edgar E. Iglesiasb76da7e2010-09-09 10:24:01 +02002876 case EXCP_HW_EXCP:
2877 env->regs[17] = env->sregs[SR_PC] + 4;
2878 if (env->iflags & D_FLAG) {
2879 env->sregs[SR_ESR] |= 1 << 12;
2880 env->sregs[SR_PC] -= 4;
Dong Xu Wangb4916d72011-11-22 18:06:17 +08002881 /* FIXME: if branch was immed, replay the imm as well. */
Edgar E. Iglesiasb76da7e2010-09-09 10:24:01 +02002882 }
2883
2884 env->iflags &= ~(IMM_FLAG | D_FLAG);
2885
2886 switch (env->sregs[SR_ESR] & 31) {
Edgar E. Iglesias22a78d62011-08-22 18:42:54 +02002887 case ESR_EC_DIVZERO:
2888 info.si_signo = SIGFPE;
2889 info.si_errno = 0;
2890 info.si_code = TARGET_FPE_FLTDIV;
2891 info._sifields._sigfault._addr = 0;
2892 queue_signal(env, info.si_signo, &info);
2893 break;
Edgar E. Iglesiasb76da7e2010-09-09 10:24:01 +02002894 case ESR_EC_FPU:
2895 info.si_signo = SIGFPE;
2896 info.si_errno = 0;
2897 if (env->sregs[SR_FSR] & FSR_IO) {
2898 info.si_code = TARGET_FPE_FLTINV;
2899 }
2900 if (env->sregs[SR_FSR] & FSR_DZ) {
2901 info.si_code = TARGET_FPE_FLTDIV;
2902 }
2903 info._sifields._sigfault._addr = 0;
2904 queue_signal(env, info.si_signo, &info);
2905 break;
2906 default:
2907 printf ("Unhandled hw-exception: 0x%x\n",
Edgar E. Iglesias2e42d522011-04-11 23:57:07 +02002908 env->sregs[SR_ESR] & ESR_EC_MASK);
Andreas Färber878096e2013-05-27 01:33:50 +02002909 cpu_dump_state(cs, stderr, fprintf, 0);
Edgar E. Iglesiasb76da7e2010-09-09 10:24:01 +02002910 exit (1);
2911 break;
2912 }
2913 break;
Edgar E. Iglesiasb779e292009-05-20 21:31:33 +02002914 case EXCP_DEBUG:
2915 {
2916 int sig;
2917
Andreas Färberdb6b81d2013-06-27 19:49:31 +02002918 sig = gdb_handlesig(cs, TARGET_SIGTRAP);
Edgar E. Iglesiasb779e292009-05-20 21:31:33 +02002919 if (sig)
2920 {
2921 info.si_signo = sig;
2922 info.si_errno = 0;
2923 info.si_code = TARGET_TRAP_BRKPT;
2924 queue_signal(env, info.si_signo, &info);
2925 }
2926 }
2927 break;
2928 default:
2929 printf ("Unhandled trap: 0x%x\n", trapnr);
Andreas Färber878096e2013-05-27 01:33:50 +02002930 cpu_dump_state(cs, stderr, fprintf, 0);
Edgar E. Iglesiasb779e292009-05-20 21:31:33 +02002931 exit (1);
2932 }
2933 process_pending_signals (env);
2934 }
2935}
2936#endif
2937
pbrooke6e59062006-10-22 00:18:54 +00002938#ifdef TARGET_M68K
2939
2940void cpu_loop(CPUM68KState *env)
2941{
Andreas Färber878096e2013-05-27 01:33:50 +02002942 CPUState *cs = CPU(m68k_env_get_cpu(env));
pbrooke6e59062006-10-22 00:18:54 +00002943 int trapnr;
2944 unsigned int n;
Anthony Liguoric227f092009-10-01 16:12:16 -05002945 target_siginfo_t info;
pbrooke6e59062006-10-22 00:18:54 +00002946 TaskState *ts = env->opaque;
ths3b46e622007-09-17 08:09:54 +00002947
pbrooke6e59062006-10-22 00:18:54 +00002948 for(;;) {
2949 trapnr = cpu_m68k_exec(env);
2950 switch(trapnr) {
2951 case EXCP_ILLEGAL:
2952 {
2953 if (ts->sim_syscalls) {
2954 uint16_t nr;
2955 nr = lduw(env->pc + 2);
2956 env->pc += 4;
2957 do_m68k_simcall(env, nr);
2958 } else {
2959 goto do_sigill;
2960 }
2961 }
2962 break;
pbrooka87295e2007-05-26 15:09:38 +00002963 case EXCP_HALT_INSN:
pbrooke6e59062006-10-22 00:18:54 +00002964 /* Semihosing syscall. */
pbrooka87295e2007-05-26 15:09:38 +00002965 env->pc += 4;
pbrooke6e59062006-10-22 00:18:54 +00002966 do_m68k_semihosting(env, env->dregs[0]);
2967 break;
2968 case EXCP_LINEA:
2969 case EXCP_LINEF:
2970 case EXCP_UNSUPPORTED:
2971 do_sigill:
2972 info.si_signo = SIGILL;
2973 info.si_errno = 0;
2974 info.si_code = TARGET_ILL_ILLOPN;
2975 info._sifields._sigfault._addr = env->pc;
pbrook624f7972008-05-31 16:11:38 +00002976 queue_signal(env, info.si_signo, &info);
pbrooke6e59062006-10-22 00:18:54 +00002977 break;
2978 case EXCP_TRAP0:
2979 {
2980 ts->sim_syscalls = 0;
2981 n = env->dregs[0];
2982 env->pc += 2;
ths5fafdf22007-09-16 21:08:06 +00002983 env->dregs[0] = do_syscall(env,
2984 n,
pbrooke6e59062006-10-22 00:18:54 +00002985 env->dregs[1],
2986 env->dregs[2],
2987 env->dregs[3],
2988 env->dregs[4],
2989 env->dregs[5],
Peter Maydell5945cfc2011-06-16 17:37:13 +01002990 env->aregs[0],
2991 0, 0);
pbrooke6e59062006-10-22 00:18:54 +00002992 }
2993 break;
2994 case EXCP_INTERRUPT:
2995 /* just indicate that signals should be handled asap */
2996 break;
2997 case EXCP_ACCESS:
2998 {
2999 info.si_signo = SIGSEGV;
3000 info.si_errno = 0;
3001 /* XXX: check env->error_code */
3002 info.si_code = TARGET_SEGV_MAPERR;
3003 info._sifields._sigfault._addr = env->mmu.ar;
pbrook624f7972008-05-31 16:11:38 +00003004 queue_signal(env, info.si_signo, &info);
pbrooke6e59062006-10-22 00:18:54 +00003005 }
3006 break;
3007 case EXCP_DEBUG:
3008 {
3009 int sig;
3010
Andreas Färberdb6b81d2013-06-27 19:49:31 +02003011 sig = gdb_handlesig(cs, TARGET_SIGTRAP);
pbrooke6e59062006-10-22 00:18:54 +00003012 if (sig)
3013 {
3014 info.si_signo = sig;
3015 info.si_errno = 0;
3016 info.si_code = TARGET_TRAP_BRKPT;
pbrook624f7972008-05-31 16:11:38 +00003017 queue_signal(env, info.si_signo, &info);
pbrooke6e59062006-10-22 00:18:54 +00003018 }
3019 }
3020 break;
3021 default:
ths5fafdf22007-09-16 21:08:06 +00003022 fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
pbrooke6e59062006-10-22 00:18:54 +00003023 trapnr);
Andreas Färber878096e2013-05-27 01:33:50 +02003024 cpu_dump_state(cs, stderr, fprintf, 0);
pbrooke6e59062006-10-22 00:18:54 +00003025 abort();
3026 }
3027 process_pending_signals(env);
3028 }
3029}
3030#endif /* TARGET_M68K */
3031
j_mayer7a3148a2007-04-05 07:13:51 +00003032#ifdef TARGET_ALPHA
Richard Henderson6910b8f2010-04-07 15:42:26 -07003033static void do_store_exclusive(CPUAlphaState *env, int reg, int quad)
3034{
3035 target_ulong addr, val, tmp;
3036 target_siginfo_t info;
3037 int ret = 0;
3038
3039 addr = env->lock_addr;
3040 tmp = env->lock_st_addr;
3041 env->lock_addr = -1;
3042 env->lock_st_addr = 0;
3043
3044 start_exclusive();
3045 mmap_lock();
3046
3047 if (addr == tmp) {
3048 if (quad ? get_user_s64(val, addr) : get_user_s32(val, addr)) {
3049 goto do_sigsegv;
3050 }
3051
3052 if (val == env->lock_value) {
3053 tmp = env->ir[reg];
3054 if (quad ? put_user_u64(tmp, addr) : put_user_u32(tmp, addr)) {
3055 goto do_sigsegv;
3056 }
3057 ret = 1;
3058 }
3059 }
3060 env->ir[reg] = ret;
3061 env->pc += 4;
3062
3063 mmap_unlock();
3064 end_exclusive();
3065 return;
3066
3067 do_sigsegv:
3068 mmap_unlock();
3069 end_exclusive();
3070
3071 info.si_signo = TARGET_SIGSEGV;
3072 info.si_errno = 0;
3073 info.si_code = TARGET_SEGV_MAPERR;
3074 info._sifields._sigfault._addr = addr;
3075 queue_signal(env, TARGET_SIGSEGV, &info);
3076}
3077
Andreas Färber05390242012-02-25 03:37:53 +01003078void cpu_loop(CPUAlphaState *env)
j_mayer7a3148a2007-04-05 07:13:51 +00003079{
Andreas Färber878096e2013-05-27 01:33:50 +02003080 CPUState *cs = CPU(alpha_env_get_cpu(env));
j_mayere96efcf2007-04-14 12:17:09 +00003081 int trapnr;
Anthony Liguoric227f092009-10-01 16:12:16 -05003082 target_siginfo_t info;
Richard Henderson6049f4f2009-12-27 18:30:03 -08003083 abi_long sysret;
ths3b46e622007-09-17 08:09:54 +00003084
j_mayer7a3148a2007-04-05 07:13:51 +00003085 while (1) {
3086 trapnr = cpu_alpha_exec (env);
ths3b46e622007-09-17 08:09:54 +00003087
Richard Hendersonac316ca2010-04-12 16:14:54 -07003088 /* All of the traps imply a transition through PALcode, which
3089 implies an REI instruction has been executed. Which means
3090 that the intr_flag should be cleared. */
3091 env->intr_flag = 0;
3092
j_mayer7a3148a2007-04-05 07:13:51 +00003093 switch (trapnr) {
3094 case EXCP_RESET:
3095 fprintf(stderr, "Reset requested. Exit\n");
3096 exit(1);
3097 break;
3098 case EXCP_MCHK:
3099 fprintf(stderr, "Machine check exception. Exit\n");
3100 exit(1);
3101 break;
Richard Henderson07b6c132011-05-20 14:04:57 -07003102 case EXCP_SMP_INTERRUPT:
3103 case EXCP_CLK_INTERRUPT:
3104 case EXCP_DEV_INTERRUPT:
ths5fafdf22007-09-16 21:08:06 +00003105 fprintf(stderr, "External interrupt. Exit\n");
j_mayer7a3148a2007-04-05 07:13:51 +00003106 exit(1);
3107 break;
Richard Henderson07b6c132011-05-20 14:04:57 -07003108 case EXCP_MMFAULT:
Richard Henderson6910b8f2010-04-07 15:42:26 -07003109 env->lock_addr = -1;
Richard Henderson6049f4f2009-12-27 18:30:03 -08003110 info.si_signo = TARGET_SIGSEGV;
3111 info.si_errno = 0;
Richard Henderson129d8aa2011-05-20 13:30:00 -07003112 info.si_code = (page_get_flags(env->trap_arg0) & PAGE_VALID
Richard Henderson0be1d072010-05-21 10:03:33 -07003113 ? TARGET_SEGV_ACCERR : TARGET_SEGV_MAPERR);
Richard Henderson129d8aa2011-05-20 13:30:00 -07003114 info._sifields._sigfault._addr = env->trap_arg0;
Richard Henderson6049f4f2009-12-27 18:30:03 -08003115 queue_signal(env, info.si_signo, &info);
j_mayer7a3148a2007-04-05 07:13:51 +00003116 break;
j_mayer7a3148a2007-04-05 07:13:51 +00003117 case EXCP_UNALIGN:
Richard Henderson6910b8f2010-04-07 15:42:26 -07003118 env->lock_addr = -1;
Richard Henderson6049f4f2009-12-27 18:30:03 -08003119 info.si_signo = TARGET_SIGBUS;
3120 info.si_errno = 0;
3121 info.si_code = TARGET_BUS_ADRALN;
Richard Henderson129d8aa2011-05-20 13:30:00 -07003122 info._sifields._sigfault._addr = env->trap_arg0;
Richard Henderson6049f4f2009-12-27 18:30:03 -08003123 queue_signal(env, info.si_signo, &info);
j_mayer7a3148a2007-04-05 07:13:51 +00003124 break;
3125 case EXCP_OPCDEC:
Richard Henderson6049f4f2009-12-27 18:30:03 -08003126 do_sigill:
Richard Henderson6910b8f2010-04-07 15:42:26 -07003127 env->lock_addr = -1;
Richard Henderson6049f4f2009-12-27 18:30:03 -08003128 info.si_signo = TARGET_SIGILL;
3129 info.si_errno = 0;
3130 info.si_code = TARGET_ILL_ILLOPC;
3131 info._sifields._sigfault._addr = env->pc;
3132 queue_signal(env, info.si_signo, &info);
j_mayer7a3148a2007-04-05 07:13:51 +00003133 break;
Richard Henderson07b6c132011-05-20 14:04:57 -07003134 case EXCP_ARITH:
3135 env->lock_addr = -1;
3136 info.si_signo = TARGET_SIGFPE;
3137 info.si_errno = 0;
3138 info.si_code = TARGET_FPE_FLTINV;
3139 info._sifields._sigfault._addr = env->pc;
3140 queue_signal(env, info.si_signo, &info);
3141 break;
j_mayer7a3148a2007-04-05 07:13:51 +00003142 case EXCP_FEN:
Richard Henderson6049f4f2009-12-27 18:30:03 -08003143 /* No-op. Linux simply re-enables the FPU. */
j_mayer7a3148a2007-04-05 07:13:51 +00003144 break;
Richard Henderson07b6c132011-05-20 14:04:57 -07003145 case EXCP_CALL_PAL:
Richard Henderson6910b8f2010-04-07 15:42:26 -07003146 env->lock_addr = -1;
Richard Henderson07b6c132011-05-20 14:04:57 -07003147 switch (env->error_code) {
Richard Henderson6049f4f2009-12-27 18:30:03 -08003148 case 0x80:
3149 /* BPT */
3150 info.si_signo = TARGET_SIGTRAP;
3151 info.si_errno = 0;
3152 info.si_code = TARGET_TRAP_BRKPT;
3153 info._sifields._sigfault._addr = env->pc;
3154 queue_signal(env, info.si_signo, &info);
3155 break;
3156 case 0x81:
3157 /* BUGCHK */
3158 info.si_signo = TARGET_SIGTRAP;
3159 info.si_errno = 0;
3160 info.si_code = 0;
3161 info._sifields._sigfault._addr = env->pc;
3162 queue_signal(env, info.si_signo, &info);
3163 break;
3164 case 0x83:
3165 /* CALLSYS */
3166 trapnr = env->ir[IR_V0];
3167 sysret = do_syscall(env, trapnr,
3168 env->ir[IR_A0], env->ir[IR_A1],
3169 env->ir[IR_A2], env->ir[IR_A3],
Peter Maydell5945cfc2011-06-16 17:37:13 +01003170 env->ir[IR_A4], env->ir[IR_A5],
3171 0, 0);
Richard Hendersona5b3b132010-05-03 10:07:55 -07003172 if (trapnr == TARGET_NR_sigreturn
3173 || trapnr == TARGET_NR_rt_sigreturn) {
3174 break;
3175 }
3176 /* Syscall writes 0 to V0 to bypass error check, similar
Richard Henderson0e141972012-06-07 14:47:41 -07003177 to how this is handled internal to Linux kernel.
3178 (Ab)use trapnr temporarily as boolean indicating error. */
3179 trapnr = (env->ir[IR_V0] != 0 && sysret < 0);
3180 env->ir[IR_V0] = (trapnr ? -sysret : sysret);
3181 env->ir[IR_A3] = trapnr;
Richard Henderson6049f4f2009-12-27 18:30:03 -08003182 break;
3183 case 0x86:
3184 /* IMB */
3185 /* ??? We can probably elide the code using page_unprotect
3186 that is checking for self-modifying code. Instead we
3187 could simply call tb_flush here. Until we work out the
3188 changes required to turn off the extra write protection,
3189 this can be a no-op. */
3190 break;
3191 case 0x9E:
3192 /* RDUNIQUE */
3193 /* Handled in the translator for usermode. */
3194 abort();
3195 case 0x9F:
3196 /* WRUNIQUE */
3197 /* Handled in the translator for usermode. */
3198 abort();
3199 case 0xAA:
3200 /* GENTRAP */
3201 info.si_signo = TARGET_SIGFPE;
3202 switch (env->ir[IR_A0]) {
3203 case TARGET_GEN_INTOVF:
3204 info.si_code = TARGET_FPE_INTOVF;
3205 break;
3206 case TARGET_GEN_INTDIV:
3207 info.si_code = TARGET_FPE_INTDIV;
3208 break;
3209 case TARGET_GEN_FLTOVF:
3210 info.si_code = TARGET_FPE_FLTOVF;
3211 break;
3212 case TARGET_GEN_FLTUND:
3213 info.si_code = TARGET_FPE_FLTUND;
3214 break;
3215 case TARGET_GEN_FLTINV:
3216 info.si_code = TARGET_FPE_FLTINV;
3217 break;
3218 case TARGET_GEN_FLTINE:
3219 info.si_code = TARGET_FPE_FLTRES;
3220 break;
3221 case TARGET_GEN_ROPRAND:
3222 info.si_code = 0;
3223 break;
3224 default:
3225 info.si_signo = TARGET_SIGTRAP;
3226 info.si_code = 0;
3227 break;
3228 }
3229 info.si_errno = 0;
3230 info._sifields._sigfault._addr = env->pc;
3231 queue_signal(env, info.si_signo, &info);
3232 break;
3233 default:
3234 goto do_sigill;
3235 }
j_mayer7a3148a2007-04-05 07:13:51 +00003236 break;
j_mayer7a3148a2007-04-05 07:13:51 +00003237 case EXCP_DEBUG:
Andreas Färberdb6b81d2013-06-27 19:49:31 +02003238 info.si_signo = gdb_handlesig(cs, TARGET_SIGTRAP);
Richard Henderson6049f4f2009-12-27 18:30:03 -08003239 if (info.si_signo) {
Richard Henderson6910b8f2010-04-07 15:42:26 -07003240 env->lock_addr = -1;
Richard Henderson6049f4f2009-12-27 18:30:03 -08003241 info.si_errno = 0;
3242 info.si_code = TARGET_TRAP_BRKPT;
3243 queue_signal(env, info.si_signo, &info);
j_mayer7a3148a2007-04-05 07:13:51 +00003244 }
3245 break;
Richard Henderson6910b8f2010-04-07 15:42:26 -07003246 case EXCP_STL_C:
3247 case EXCP_STQ_C:
3248 do_store_exclusive(env, env->error_code, trapnr - EXCP_STL_C);
3249 break;
Richard Hendersond0f20492012-05-31 12:05:23 -07003250 case EXCP_INTERRUPT:
3251 /* Just indicate that signals should be handled asap. */
3252 break;
j_mayer7a3148a2007-04-05 07:13:51 +00003253 default:
3254 printf ("Unhandled trap: 0x%x\n", trapnr);
Andreas Färber878096e2013-05-27 01:33:50 +02003255 cpu_dump_state(cs, stderr, fprintf, 0);
j_mayer7a3148a2007-04-05 07:13:51 +00003256 exit (1);
3257 }
3258 process_pending_signals (env);
3259 }
3260}
3261#endif /* TARGET_ALPHA */
3262
Ulrich Hechta4c075f2009-07-24 16:57:31 +02003263#ifdef TARGET_S390X
3264void cpu_loop(CPUS390XState *env)
3265{
Andreas Färber878096e2013-05-27 01:33:50 +02003266 CPUState *cs = CPU(s390_env_get_cpu(env));
Richard Hendersond5a103c2012-09-14 19:31:57 -07003267 int trapnr, n, sig;
Ulrich Hechta4c075f2009-07-24 16:57:31 +02003268 target_siginfo_t info;
Richard Hendersond5a103c2012-09-14 19:31:57 -07003269 target_ulong addr;
Ulrich Hechta4c075f2009-07-24 16:57:31 +02003270
3271 while (1) {
Richard Hendersond5a103c2012-09-14 19:31:57 -07003272 trapnr = cpu_s390x_exec(env);
Ulrich Hechta4c075f2009-07-24 16:57:31 +02003273 switch (trapnr) {
3274 case EXCP_INTERRUPT:
Richard Hendersond5a103c2012-09-14 19:31:57 -07003275 /* Just indicate that signals should be handled asap. */
Ulrich Hechta4c075f2009-07-24 16:57:31 +02003276 break;
Ulrich Hechta4c075f2009-07-24 16:57:31 +02003277
Ulrich Hechta4c075f2009-07-24 16:57:31 +02003278 case EXCP_SVC:
Richard Hendersond5a103c2012-09-14 19:31:57 -07003279 n = env->int_svc_code;
3280 if (!n) {
3281 /* syscalls > 255 */
3282 n = env->regs[1];
3283 }
3284 env->psw.addr += env->int_svc_ilen;
3285 env->regs[2] = do_syscall(env, n, env->regs[2], env->regs[3],
3286 env->regs[4], env->regs[5],
3287 env->regs[6], env->regs[7], 0, 0);
3288 break;
3289
3290 case EXCP_DEBUG:
Andreas Färberdb6b81d2013-06-27 19:49:31 +02003291 sig = gdb_handlesig(cs, TARGET_SIGTRAP);
Richard Hendersond5a103c2012-09-14 19:31:57 -07003292 if (sig) {
3293 n = TARGET_TRAP_BRKPT;
3294 goto do_signal_pc;
Ulrich Hechta4c075f2009-07-24 16:57:31 +02003295 }
3296 break;
Richard Hendersond5a103c2012-09-14 19:31:57 -07003297 case EXCP_PGM:
3298 n = env->int_pgm_code;
3299 switch (n) {
3300 case PGM_OPERATION:
3301 case PGM_PRIVILEGED:
3302 sig = SIGILL;
3303 n = TARGET_ILL_ILLOPC;
3304 goto do_signal_pc;
3305 case PGM_PROTECTION:
3306 case PGM_ADDRESSING:
3307 sig = SIGSEGV;
Ulrich Hechta4c075f2009-07-24 16:57:31 +02003308 /* XXX: check env->error_code */
Richard Hendersond5a103c2012-09-14 19:31:57 -07003309 n = TARGET_SEGV_MAPERR;
3310 addr = env->__excp_addr;
3311 goto do_signal;
3312 case PGM_EXECUTE:
3313 case PGM_SPECIFICATION:
3314 case PGM_SPECIAL_OP:
3315 case PGM_OPERAND:
3316 do_sigill_opn:
3317 sig = SIGILL;
3318 n = TARGET_ILL_ILLOPN;
3319 goto do_signal_pc;
3320
3321 case PGM_FIXPT_OVERFLOW:
3322 sig = SIGFPE;
3323 n = TARGET_FPE_INTOVF;
3324 goto do_signal_pc;
3325 case PGM_FIXPT_DIVIDE:
3326 sig = SIGFPE;
3327 n = TARGET_FPE_INTDIV;
3328 goto do_signal_pc;
3329
3330 case PGM_DATA:
3331 n = (env->fpc >> 8) & 0xff;
3332 if (n == 0xff) {
3333 /* compare-and-trap */
3334 goto do_sigill_opn;
3335 } else {
3336 /* An IEEE exception, simulated or otherwise. */
3337 if (n & 0x80) {
3338 n = TARGET_FPE_FLTINV;
3339 } else if (n & 0x40) {
3340 n = TARGET_FPE_FLTDIV;
3341 } else if (n & 0x20) {
3342 n = TARGET_FPE_FLTOVF;
3343 } else if (n & 0x10) {
3344 n = TARGET_FPE_FLTUND;
3345 } else if (n & 0x08) {
3346 n = TARGET_FPE_FLTRES;
3347 } else {
3348 /* ??? Quantum exception; BFP, DFP error. */
3349 goto do_sigill_opn;
3350 }
3351 sig = SIGFPE;
3352 goto do_signal_pc;
3353 }
3354
3355 default:
3356 fprintf(stderr, "Unhandled program exception: %#x\n", n);
Andreas Färber878096e2013-05-27 01:33:50 +02003357 cpu_dump_state(cs, stderr, fprintf, 0);
Richard Hendersond5a103c2012-09-14 19:31:57 -07003358 exit(1);
Ulrich Hechta4c075f2009-07-24 16:57:31 +02003359 }
3360 break;
Richard Hendersond5a103c2012-09-14 19:31:57 -07003361
3362 do_signal_pc:
3363 addr = env->psw.addr;
3364 do_signal:
3365 info.si_signo = sig;
3366 info.si_errno = 0;
3367 info.si_code = n;
3368 info._sifields._sigfault._addr = addr;
3369 queue_signal(env, info.si_signo, &info);
Ulrich Hechta4c075f2009-07-24 16:57:31 +02003370 break;
Richard Hendersond5a103c2012-09-14 19:31:57 -07003371
Ulrich Hechta4c075f2009-07-24 16:57:31 +02003372 default:
Richard Hendersond5a103c2012-09-14 19:31:57 -07003373 fprintf(stderr, "Unhandled trap: 0x%x\n", trapnr);
Andreas Färber878096e2013-05-27 01:33:50 +02003374 cpu_dump_state(cs, stderr, fprintf, 0);
Richard Hendersond5a103c2012-09-14 19:31:57 -07003375 exit(1);
Ulrich Hechta4c075f2009-07-24 16:57:31 +02003376 }
3377 process_pending_signals (env);
3378 }
3379}
3380
3381#endif /* TARGET_S390X */
3382
Andreas Färbera2247f82013-06-09 19:47:04 +02003383THREAD CPUState *thread_cpu;
bellard59faf6d2003-06-25 16:18:50 +00003384
Mika Westerbergedf8e2a2009-04-07 09:57:11 +03003385void task_settid(TaskState *ts)
3386{
3387 if (ts->ts_tid == 0) {
Mika Westerbergedf8e2a2009-04-07 09:57:11 +03003388 ts->ts_tid = (pid_t)syscall(SYS_gettid);
Mika Westerbergedf8e2a2009-04-07 09:57:11 +03003389 }
3390}
3391
3392void stop_all_tasks(void)
3393{
3394 /*
3395 * We trust that when using NPTL, start_exclusive()
3396 * handles thread stopping correctly.
3397 */
3398 start_exclusive();
3399}
3400
pbrookc3a92832008-06-09 14:02:50 +00003401/* Assumes contents are already zeroed. */
pbrook624f7972008-05-31 16:11:38 +00003402void init_task_state(TaskState *ts)
3403{
3404 int i;
3405
pbrook624f7972008-05-31 16:11:38 +00003406 ts->used = 1;
3407 ts->first_free = ts->sigqueue_table;
3408 for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) {
3409 ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1];
3410 }
3411 ts->sigqueue_table[i].next = NULL;
3412}
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003413
Andreas Färber30ba0ee2013-07-02 17:43:21 +02003414CPUArchState *cpu_copy(CPUArchState *env)
3415{
Andreas Färber51fb2562013-07-02 18:26:11 +02003416 CPUArchState *new_env = cpu_init(cpu_model);
Andreas Färber30ba0ee2013-07-02 17:43:21 +02003417#if defined(TARGET_HAS_ICE)
3418 CPUBreakpoint *bp;
3419 CPUWatchpoint *wp;
3420#endif
3421
3422 /* Reset non arch specific state */
3423 cpu_reset(ENV_GET_CPU(new_env));
3424
3425 memcpy(new_env, env, sizeof(CPUArchState));
3426
3427 /* Clone all break/watchpoints.
3428 Note: Once we support ptrace with hw-debug register access, make sure
3429 BP_CPU break/watchpoints are handled correctly on clone. */
3430 QTAILQ_INIT(&env->breakpoints);
3431 QTAILQ_INIT(&env->watchpoints);
3432#if defined(TARGET_HAS_ICE)
3433 QTAILQ_FOREACH(bp, &env->breakpoints, entry) {
3434 cpu_breakpoint_insert(new_env, bp->pc, bp->flags, NULL);
3435 }
3436 QTAILQ_FOREACH(wp, &env->watchpoints, entry) {
3437 cpu_watchpoint_insert(new_env, wp->vaddr, (~wp->len_mask) + 1,
3438 wp->flags, NULL);
3439 }
3440#endif
3441
3442 return new_env;
3443}
3444
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003445static void handle_arg_help(const char *arg)
3446{
3447 usage();
3448}
3449
3450static void handle_arg_log(const char *arg)
3451{
3452 int mask;
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003453
Peter Maydell4fde1eb2013-02-11 16:41:22 +00003454 mask = qemu_str_to_log_mask(arg);
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003455 if (!mask) {
Peter Maydell59a6fa62013-02-11 16:41:21 +00003456 qemu_print_log_usage(stdout);
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003457 exit(1);
3458 }
Peter Maydell24537a02013-02-11 16:41:23 +00003459 qemu_set_log(mask);
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003460}
3461
陳韋任50171d42011-11-08 17:46:44 +08003462static void handle_arg_log_filename(const char *arg)
3463{
Peter Maydell9a7e5422013-02-11 16:41:20 +00003464 qemu_set_log_filename(arg);
陳韋任50171d42011-11-08 17:46:44 +08003465}
3466
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003467static void handle_arg_set_env(const char *arg)
3468{
3469 char *r, *p, *token;
3470 r = p = strdup(arg);
3471 while ((token = strsep(&p, ",")) != NULL) {
3472 if (envlist_setenv(envlist, token) != 0) {
3473 usage();
3474 }
3475 }
3476 free(r);
3477}
3478
3479static void handle_arg_unset_env(const char *arg)
3480{
3481 char *r, *p, *token;
3482 r = p = strdup(arg);
3483 while ((token = strsep(&p, ",")) != NULL) {
3484 if (envlist_unsetenv(envlist, token) != 0) {
3485 usage();
3486 }
3487 }
3488 free(r);
3489}
3490
3491static void handle_arg_argv0(const char *arg)
3492{
3493 argv0 = strdup(arg);
3494}
3495
3496static void handle_arg_stack_size(const char *arg)
3497{
3498 char *p;
3499 guest_stack_size = strtoul(arg, &p, 0);
3500 if (guest_stack_size == 0) {
3501 usage();
3502 }
3503
3504 if (*p == 'M') {
3505 guest_stack_size *= 1024 * 1024;
3506 } else if (*p == 'k' || *p == 'K') {
3507 guest_stack_size *= 1024;
3508 }
3509}
3510
3511static void handle_arg_ld_prefix(const char *arg)
3512{
3513 interp_prefix = strdup(arg);
3514}
3515
3516static void handle_arg_pagesize(const char *arg)
3517{
3518 qemu_host_page_size = atoi(arg);
3519 if (qemu_host_page_size == 0 ||
3520 (qemu_host_page_size & (qemu_host_page_size - 1)) != 0) {
3521 fprintf(stderr, "page size must be a power of two\n");
3522 exit(1);
3523 }
3524}
3525
3526static void handle_arg_gdb(const char *arg)
3527{
3528 gdbstub_port = atoi(arg);
3529}
3530
3531static void handle_arg_uname(const char *arg)
3532{
3533 qemu_uname_release = strdup(arg);
3534}
3535
3536static void handle_arg_cpu(const char *arg)
3537{
3538 cpu_model = strdup(arg);
Peter Maydellc8057f92012-08-02 13:45:54 +01003539 if (cpu_model == NULL || is_help_option(cpu_model)) {
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003540 /* XXX: implement xxx_cpu_list for targets that still miss it */
Peter Maydelle916cbf2012-09-05 17:41:08 -03003541#if defined(cpu_list)
3542 cpu_list(stdout, &fprintf);
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003543#endif
3544 exit(1);
3545 }
3546}
3547
3548#if defined(CONFIG_USE_GUEST_BASE)
3549static void handle_arg_guest_base(const char *arg)
3550{
3551 guest_base = strtol(arg, NULL, 0);
3552 have_guest_base = 1;
3553}
3554
3555static void handle_arg_reserved_va(const char *arg)
3556{
3557 char *p;
3558 int shift = 0;
3559 reserved_va = strtoul(arg, &p, 0);
3560 switch (*p) {
3561 case 'k':
3562 case 'K':
3563 shift = 10;
3564 break;
3565 case 'M':
3566 shift = 20;
3567 break;
3568 case 'G':
3569 shift = 30;
3570 break;
3571 }
3572 if (shift) {
3573 unsigned long unshifted = reserved_va;
3574 p++;
3575 reserved_va <<= shift;
3576 if (((reserved_va >> shift) != unshifted)
3577#if HOST_LONG_BITS > TARGET_VIRT_ADDR_SPACE_BITS
3578 || (reserved_va > (1ul << TARGET_VIRT_ADDR_SPACE_BITS))
3579#endif
3580 ) {
3581 fprintf(stderr, "Reserved virtual address too big\n");
3582 exit(1);
3583 }
3584 }
3585 if (*p) {
3586 fprintf(stderr, "Unrecognised -R size suffix '%s'\n", p);
3587 exit(1);
3588 }
3589}
3590#endif
3591
3592static void handle_arg_singlestep(const char *arg)
3593{
3594 singlestep = 1;
3595}
3596
3597static void handle_arg_strace(const char *arg)
3598{
3599 do_strace = 1;
3600}
3601
3602static void handle_arg_version(const char *arg)
3603{
Paolo Bonzini2e599152013-06-04 14:45:27 +02003604 printf("qemu-" TARGET_NAME " version " QEMU_VERSION QEMU_PKGVERSION
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003605 ", Copyright (c) 2003-2008 Fabrice Bellard\n");
Peter Maydell1386d4c2011-09-29 15:48:12 +01003606 exit(0);
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003607}
3608
3609struct qemu_argument {
3610 const char *argv;
3611 const char *env;
3612 bool has_arg;
3613 void (*handle_opt)(const char *arg);
3614 const char *example;
3615 const char *help;
3616};
3617
Jim Meyering42644ce2012-05-21 21:56:19 +02003618static const struct qemu_argument arg_table[] = {
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003619 {"h", "", false, handle_arg_help,
3620 "", "print this help"},
3621 {"g", "QEMU_GDB", true, handle_arg_gdb,
3622 "port", "wait gdb connection to 'port'"},
3623 {"L", "QEMU_LD_PREFIX", true, handle_arg_ld_prefix,
3624 "path", "set the elf interpreter prefix to 'path'"},
3625 {"s", "QEMU_STACK_SIZE", true, handle_arg_stack_size,
3626 "size", "set the stack size to 'size' bytes"},
3627 {"cpu", "QEMU_CPU", true, handle_arg_cpu,
Peter Maydellc8057f92012-08-02 13:45:54 +01003628 "model", "select CPU (-cpu help for list)"},
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003629 {"E", "QEMU_SET_ENV", true, handle_arg_set_env,
3630 "var=value", "sets targets environment variable (see below)"},
3631 {"U", "QEMU_UNSET_ENV", true, handle_arg_unset_env,
3632 "var", "unsets targets environment variable (see below)"},
3633 {"0", "QEMU_ARGV0", true, handle_arg_argv0,
3634 "argv0", "forces target process argv[0] to be 'argv0'"},
3635 {"r", "QEMU_UNAME", true, handle_arg_uname,
3636 "uname", "set qemu uname release string to 'uname'"},
3637#if defined(CONFIG_USE_GUEST_BASE)
3638 {"B", "QEMU_GUEST_BASE", true, handle_arg_guest_base,
3639 "address", "set guest_base address to 'address'"},
3640 {"R", "QEMU_RESERVED_VA", true, handle_arg_reserved_va,
3641 "size", "reserve 'size' bytes for guest virtual address space"},
3642#endif
3643 {"d", "QEMU_LOG", true, handle_arg_log,
Peter Maydell989b6972013-02-26 17:52:40 +00003644 "item[,...]", "enable logging of specified items "
3645 "(use '-d help' for a list of items)"},
陳韋任50171d42011-11-08 17:46:44 +08003646 {"D", "QEMU_LOG_FILENAME", true, handle_arg_log_filename,
Peter Maydell989b6972013-02-26 17:52:40 +00003647 "logfile", "write logs to 'logfile' (default stderr)"},
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003648 {"p", "QEMU_PAGESIZE", true, handle_arg_pagesize,
3649 "pagesize", "set the host page size to 'pagesize'"},
3650 {"singlestep", "QEMU_SINGLESTEP", false, handle_arg_singlestep,
3651 "", "run in singlestep mode"},
3652 {"strace", "QEMU_STRACE", false, handle_arg_strace,
3653 "", "log system calls"},
3654 {"version", "QEMU_VERSION", false, handle_arg_version,
Peter Maydell1386d4c2011-09-29 15:48:12 +01003655 "", "display version information and exit"},
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003656 {NULL, NULL, false, NULL, NULL, NULL}
3657};
3658
3659static void usage(void)
3660{
Jim Meyering42644ce2012-05-21 21:56:19 +02003661 const struct qemu_argument *arginfo;
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003662 int maxarglen;
3663 int maxenvlen;
3664
Paolo Bonzini2e599152013-06-04 14:45:27 +02003665 printf("usage: qemu-" TARGET_NAME " [options] program [arguments...]\n"
3666 "Linux CPU emulator (compiled for " TARGET_NAME " emulation)\n"
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003667 "\n"
3668 "Options and associated environment variables:\n"
3669 "\n");
3670
Peter Maydell63ec54d2013-02-14 08:46:43 +00003671 /* Calculate column widths. We must always have at least enough space
3672 * for the column header.
3673 */
3674 maxarglen = strlen("Argument");
3675 maxenvlen = strlen("Env-variable");
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003676
3677 for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
Peter Maydell63ec54d2013-02-14 08:46:43 +00003678 int arglen = strlen(arginfo->argv);
3679 if (arginfo->has_arg) {
3680 arglen += strlen(arginfo->example) + 1;
3681 }
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003682 if (strlen(arginfo->env) > maxenvlen) {
3683 maxenvlen = strlen(arginfo->env);
3684 }
Peter Maydell63ec54d2013-02-14 08:46:43 +00003685 if (arglen > maxarglen) {
3686 maxarglen = arglen;
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003687 }
3688 }
3689
Peter Maydell63ec54d2013-02-14 08:46:43 +00003690 printf("%-*s %-*s Description\n", maxarglen+1, "Argument",
3691 maxenvlen, "Env-variable");
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003692
3693 for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
3694 if (arginfo->has_arg) {
3695 printf("-%s %-*s %-*s %s\n", arginfo->argv,
Peter Maydell63ec54d2013-02-14 08:46:43 +00003696 (int)(maxarglen - strlen(arginfo->argv) - 1),
3697 arginfo->example, maxenvlen, arginfo->env, arginfo->help);
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003698 } else {
Peter Maydell63ec54d2013-02-14 08:46:43 +00003699 printf("-%-*s %-*s %s\n", maxarglen, arginfo->argv,
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003700 maxenvlen, arginfo->env,
3701 arginfo->help);
3702 }
3703 }
3704
3705 printf("\n"
3706 "Defaults:\n"
3707 "QEMU_LD_PREFIX = %s\n"
Peter Maydell989b6972013-02-26 17:52:40 +00003708 "QEMU_STACK_SIZE = %ld byte\n",
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003709 interp_prefix,
Peter Maydell989b6972013-02-26 17:52:40 +00003710 guest_stack_size);
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003711
3712 printf("\n"
3713 "You can use -E and -U options or the QEMU_SET_ENV and\n"
3714 "QEMU_UNSET_ENV environment variables to set and unset\n"
3715 "environment variables for the target process.\n"
3716 "It is possible to provide several variables by separating them\n"
3717 "by commas in getsubopt(3) style. Additionally it is possible to\n"
3718 "provide the -E and -U options multiple times.\n"
3719 "The following lines are equivalent:\n"
3720 " -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n"
3721 " -E var1=val2,var2=val2 -U LD_PRELOAD,LD_DEBUG\n"
3722 " QEMU_SET_ENV=var1=val2,var2=val2 QEMU_UNSET_ENV=LD_PRELOAD,LD_DEBUG\n"
3723 "Note that if you provide several changes to a single variable\n"
3724 "the last change will stay in effect.\n");
3725
3726 exit(1);
3727}
3728
3729static int parse_args(int argc, char **argv)
3730{
3731 const char *r;
3732 int optind;
Jim Meyering42644ce2012-05-21 21:56:19 +02003733 const struct qemu_argument *arginfo;
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003734
3735 for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
3736 if (arginfo->env == NULL) {
3737 continue;
3738 }
3739
3740 r = getenv(arginfo->env);
3741 if (r != NULL) {
3742 arginfo->handle_opt(r);
3743 }
3744 }
3745
3746 optind = 1;
3747 for (;;) {
3748 if (optind >= argc) {
3749 break;
3750 }
3751 r = argv[optind];
3752 if (r[0] != '-') {
3753 break;
3754 }
3755 optind++;
3756 r++;
3757 if (!strcmp(r, "-")) {
3758 break;
3759 }
3760
3761 for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) {
3762 if (!strcmp(r, arginfo->argv)) {
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003763 if (arginfo->has_arg) {
Peter Maydell1386d4c2011-09-29 15:48:12 +01003764 if (optind >= argc) {
3765 usage();
3766 }
3767 arginfo->handle_opt(argv[optind]);
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003768 optind++;
Peter Maydell1386d4c2011-09-29 15:48:12 +01003769 } else {
3770 arginfo->handle_opt(NULL);
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003771 }
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003772 break;
3773 }
3774 }
3775
3776 /* no option matched the current argv */
3777 if (arginfo->handle_opt == NULL) {
3778 usage();
3779 }
3780 }
3781
3782 if (optind >= argc) {
3783 usage();
3784 }
3785
3786 filename = argv[optind];
3787 exec_path = argv[optind];
3788
3789 return optind;
3790}
3791
malc902b3d52008-12-10 19:18:40 +00003792int main(int argc, char **argv, char **envp)
bellard31e31b82003-02-18 22:55:36 +00003793{
bellard01ffc752003-02-18 23:00:51 +00003794 struct target_pt_regs regs1, *regs = &regs1;
bellard31e31b82003-02-18 22:55:36 +00003795 struct image_info info1, *info = &info1;
Mika Westerbergedf8e2a2009-04-07 09:57:11 +03003796 struct linux_binprm bprm;
Nathan Froyd48e15fc2010-10-29 07:48:57 -07003797 TaskState *ts;
Andreas Färber9349b4f2012-03-14 01:38:32 +01003798 CPUArchState *env;
Andreas Färberdb6b81d2013-06-27 19:49:31 +02003799 CPUState *cpu;
bellard586314f2003-03-03 15:02:29 +00003800 int optind;
aurel3204a6dfe2009-01-30 19:59:17 +00003801 char **target_environ, **wrk;
aurel327d8cec92009-04-15 16:11:52 +00003802 char **target_argv;
3803 int target_argc;
aurel327d8cec92009-04-15 16:11:52 +00003804 int i;
Arnaud Patardfd4d81d2009-06-19 10:39:36 +03003805 int ret;
Laurent Vivier03cfd8f2013-08-30 01:46:44 +02003806 int execfd;
thsb12b6a12007-06-17 16:38:39 +00003807
Andreas Färberce008c12012-03-04 21:32:36 +01003808 module_call_init(MODULE_INIT_QOM);
3809
Richard Hendersonb6a3e692013-06-04 11:24:49 -07003810 qemu_init_auxval(envp);
Richard Henderson664d2c42013-06-10 09:05:09 -07003811 qemu_cache_utils_init();
malc902b3d52008-12-10 19:18:40 +00003812
aurel3204a6dfe2009-01-30 19:59:17 +00003813 if ((envlist = envlist_create()) == NULL) {
3814 (void) fprintf(stderr, "Unable to allocate envlist\n");
3815 exit(1);
3816 }
3817
3818 /* add current environment into the list */
3819 for (wrk = environ; *wrk != NULL; wrk++) {
3820 (void) envlist_setenv(envlist, *wrk);
3821 }
3822
Richard Henderson703e0e82010-03-19 14:21:13 -07003823 /* Read the stack limit from the kernel. If it's "unlimited",
3824 then we can do little else besides use the default. */
3825 {
3826 struct rlimit lim;
3827 if (getrlimit(RLIMIT_STACK, &lim) == 0
takasi-y@ops.dti.ne.jp81bbe902010-04-12 04:07:35 +09003828 && lim.rlim_cur != RLIM_INFINITY
3829 && lim.rlim_cur == (target_long)lim.rlim_cur) {
Richard Henderson703e0e82010-03-19 14:21:13 -07003830 guest_stack_size = lim.rlim_cur;
3831 }
3832 }
3833
j_mayerb1f9be32007-03-19 08:08:28 +00003834 cpu_model = NULL;
john cooperb5ec5ce2010-02-20 11:14:59 -06003835#if defined(cpudef_setup)
3836 cpudef_setup(); /* parse cpu definitions in target config file (TBD) */
3837#endif
3838
Johannes Schauerfc9c5412011-08-06 08:54:12 +02003839 optind = parse_args(argc, argv);
Peter Maydell4b5dfd82011-07-18 11:44:09 +01003840
bellard31e31b82003-02-18 22:55:36 +00003841 /* Zero out regs */
bellard01ffc752003-02-18 23:00:51 +00003842 memset(regs, 0, sizeof(struct target_pt_regs));
bellard31e31b82003-02-18 22:55:36 +00003843
3844 /* Zero out image_info */
3845 memset(info, 0, sizeof(struct image_info));
3846
Mika Westerbergedf8e2a2009-04-07 09:57:11 +03003847 memset(&bprm, 0, sizeof (bprm));
3848
bellard74cd30b2003-04-11 00:13:41 +00003849 /* Scan interp_prefix dir for replacement files. */
3850 init_paths(interp_prefix);
3851
Peter Maydell4a24a752013-09-03 20:12:20 +01003852 init_qemu_uname_release();
3853
bellard46027c02007-11-08 13:56:19 +00003854 if (cpu_model == NULL) {
bellardaaed9092007-11-10 15:15:54 +00003855#if defined(TARGET_I386)
bellard46027c02007-11-08 13:56:19 +00003856#ifdef TARGET_X86_64
3857 cpu_model = "qemu64";
3858#else
3859 cpu_model = "qemu32";
3860#endif
bellardaaed9092007-11-10 15:15:54 +00003861#elif defined(TARGET_ARM)
pbrook088ab162009-04-09 15:20:50 +00003862 cpu_model = "any";
Guan Xuetaod2fbca92011-04-12 16:27:03 +08003863#elif defined(TARGET_UNICORE32)
3864 cpu_model = "any";
bellardaaed9092007-11-10 15:15:54 +00003865#elif defined(TARGET_M68K)
3866 cpu_model = "any";
3867#elif defined(TARGET_SPARC)
3868#ifdef TARGET_SPARC64
3869 cpu_model = "TI UltraSparc II";
3870#else
3871 cpu_model = "Fujitsu MB86904";
bellard46027c02007-11-08 13:56:19 +00003872#endif
bellardaaed9092007-11-10 15:15:54 +00003873#elif defined(TARGET_MIPS)
3874#if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64)
3875 cpu_model = "20Kc";
3876#else
3877 cpu_model = "24Kf";
3878#endif
Jia Liud9627832012-07-20 15:50:52 +08003879#elif defined TARGET_OPENRISC
3880 cpu_model = "or1200";
bellardaaed9092007-11-10 15:15:54 +00003881#elif defined(TARGET_PPC)
bellard7ded4f52007-11-15 15:37:50 +00003882#ifdef TARGET_PPC64
Aurelien Jarnof7177932010-04-06 12:21:05 +02003883 cpu_model = "970fx";
bellard7ded4f52007-11-15 15:37:50 +00003884#else
bellardaaed9092007-11-10 15:15:54 +00003885 cpu_model = "750";
bellard7ded4f52007-11-15 15:37:50 +00003886#endif
bellardaaed9092007-11-10 15:15:54 +00003887#else
3888 cpu_model = "any";
3889#endif
3890 }
Jan Kiszkad5ab9712011-08-02 16:10:21 +02003891 tcg_exec_init(0);
3892 cpu_exec_init_all();
bellard83fb7ad2004-07-05 21:25:26 +00003893 /* NOTE: we need to init the CPU at this stage to get
3894 qemu_host_page_size */
bellardaaed9092007-11-10 15:15:54 +00003895 env = cpu_init(cpu_model);
3896 if (!env) {
3897 fprintf(stderr, "Unable to find CPU definition\n");
3898 exit(1);
3899 }
Andreas Färberdb6b81d2013-06-27 19:49:31 +02003900 cpu = ENV_GET_CPU(env);
Andreas Färber0ac46af2013-07-26 16:42:25 +02003901 cpu_reset(cpu);
Blue Swirlb55a37c2009-11-07 10:37:06 +00003902
Andreas Färberdb6b81d2013-06-27 19:49:31 +02003903 thread_cpu = cpu;
ths3b46e622007-09-17 08:09:54 +00003904
bellardb6741952007-11-11 14:46:06 +00003905 if (getenv("QEMU_STRACE")) {
3906 do_strace = 1;
thsb92c47c2007-11-01 00:07:38 +00003907 }
3908
aurel3204a6dfe2009-01-30 19:59:17 +00003909 target_environ = envlist_to_environ(envlist, NULL);
3910 envlist_free(envlist);
thsb12b6a12007-06-17 16:38:39 +00003911
Paul Brook379f6692009-07-17 12:48:08 +01003912#if defined(CONFIG_USE_GUEST_BASE)
3913 /*
3914 * Now that page sizes are configured in cpu_init() we can do
3915 * proper page alignment for guest_base.
3916 */
3917 guest_base = HOST_PAGE_ALIGN(guest_base);
Paul Brook68a1c812010-05-29 02:27:35 +01003918
Meador Inge806d1022012-07-26 16:50:02 +00003919 if (reserved_va || have_guest_base) {
3920 guest_base = init_guest_space(guest_base, reserved_va, 0,
3921 have_guest_base);
3922 if (guest_base == (unsigned long)-1) {
Peter Maydell097b8cb2012-08-20 11:36:32 +01003923 fprintf(stderr, "Unable to reserve 0x%lx bytes of virtual address "
3924 "space for use as guest address space (check your virtual "
3925 "memory ulimit setting or reserve less using -R option)\n",
3926 reserved_va);
Paul Brook68a1c812010-05-29 02:27:35 +01003927 exit(1);
3928 }
Dr. David Alan Gilbert97cc7562011-08-31 17:24:34 +01003929
Meador Inge806d1022012-07-26 16:50:02 +00003930 if (reserved_va) {
3931 mmap_next_start = reserved_va;
Dr. David Alan Gilbert97cc7562011-08-31 17:24:34 +01003932 }
3933 }
Richard Henderson14f24e12010-03-10 15:39:07 -08003934#endif /* CONFIG_USE_GUEST_BASE */
Paul Brook379f6692009-07-17 12:48:08 +01003935
3936 /*
3937 * Read in mmap_min_addr kernel parameter. This value is used
3938 * When loading the ELF image to determine whether guest_base
Richard Henderson14f24e12010-03-10 15:39:07 -08003939 * is needed. It is also used in mmap_find_vma.
Paul Brook379f6692009-07-17 12:48:08 +01003940 */
Richard Henderson14f24e12010-03-10 15:39:07 -08003941 {
Paul Brook379f6692009-07-17 12:48:08 +01003942 FILE *fp;
3943
3944 if ((fp = fopen("/proc/sys/vm/mmap_min_addr", "r")) != NULL) {
3945 unsigned long tmp;
3946 if (fscanf(fp, "%lu", &tmp) == 1) {
3947 mmap_min_addr = tmp;
3948 qemu_log("host mmap_min_addr=0x%lx\n", mmap_min_addr);
3949 }
3950 fclose(fp);
3951 }
3952 }
Paul Brook379f6692009-07-17 12:48:08 +01003953
aurel327d8cec92009-04-15 16:11:52 +00003954 /*
3955 * Prepare copy of argv vector for target.
3956 */
3957 target_argc = argc - optind;
3958 target_argv = calloc(target_argc + 1, sizeof (char *));
3959 if (target_argv == NULL) {
3960 (void) fprintf(stderr, "Unable to allocate memory for target_argv\n");
3961 exit(1);
3962 }
3963
3964 /*
3965 * If argv0 is specified (using '-0' switch) we replace
3966 * argv[0] pointer with the given one.
3967 */
3968 i = 0;
3969 if (argv0 != NULL) {
3970 target_argv[i++] = strdup(argv0);
3971 }
3972 for (; i < target_argc; i++) {
3973 target_argv[i] = strdup(argv[optind + i]);
3974 }
3975 target_argv[target_argc] = NULL;
3976
Anthony Liguori7267c092011-08-20 22:09:37 -05003977 ts = g_malloc0 (sizeof(TaskState));
Mika Westerbergedf8e2a2009-04-07 09:57:11 +03003978 init_task_state(ts);
3979 /* build Task State */
3980 ts->info = info;
3981 ts->bprm = &bprm;
3982 env->opaque = ts;
3983 task_settid(ts);
3984
Richard Henderson0b959cf2013-10-15 15:00:36 -07003985 execfd = qemu_getauxval(AT_EXECFD);
3986 if (execfd == 0) {
Laurent Vivier03cfd8f2013-08-30 01:46:44 +02003987 execfd = open(filename, O_RDONLY);
Richard Henderson0b959cf2013-10-15 15:00:36 -07003988 if (execfd < 0) {
3989 printf("Error while loading %s: %s\n", filename, strerror(errno));
3990 _exit(1);
3991 }
Laurent Vivier03cfd8f2013-08-30 01:46:44 +02003992 }
3993
3994 ret = loader_exec(execfd, filename, target_argv, target_environ, regs,
Arnaud Patardfd4d81d2009-06-19 10:39:36 +03003995 info, &bprm);
3996 if (ret != 0) {
Peter Maydell885c1d12012-08-24 06:55:53 +00003997 printf("Error while loading %s: %s\n", filename, strerror(-ret));
thsb12b6a12007-06-17 16:38:39 +00003998 _exit(1);
3999 }
4000
4001 for (wrk = target_environ; *wrk; wrk++) {
4002 free(*wrk);
bellard31e31b82003-02-18 22:55:36 +00004003 }
ths3b46e622007-09-17 08:09:54 +00004004
thsb12b6a12007-06-17 16:38:39 +00004005 free(target_environ);
4006
blueswir12e77eac2009-01-20 16:57:34 +00004007 if (qemu_log_enabled()) {
Paul Brook379f6692009-07-17 12:48:08 +01004008#if defined(CONFIG_USE_GUEST_BASE)
4009 qemu_log("guest_base 0x%lx\n", guest_base);
4010#endif
blueswir12e77eac2009-01-20 16:57:34 +00004011 log_page_dump();
ths3b46e622007-09-17 08:09:54 +00004012
blueswir12e77eac2009-01-20 16:57:34 +00004013 qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk);
4014 qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code);
4015 qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n",
4016 info->start_code);
4017 qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n",
4018 info->start_data);
4019 qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data);
4020 qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n",
4021 info->start_stack);
4022 qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk);
4023 qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry);
4024 }
bellard31e31b82003-02-18 22:55:36 +00004025
pbrook53a59602006-03-25 19:31:22 +00004026 target_set_brk(info->brk);
bellard31e31b82003-02-18 22:55:36 +00004027 syscall_init();
bellard66fb9762003-03-23 01:06:05 +00004028 signal_init();
bellard31e31b82003-02-18 22:55:36 +00004029
Richard Henderson9002ec72010-05-06 08:50:41 -07004030#if defined(CONFIG_USE_GUEST_BASE)
4031 /* Now that we've loaded the binary, GUEST_BASE is fixed. Delay
4032 generating the prologue until now so that the prologue can take
4033 the real value of GUEST_BASE into account. */
4034 tcg_prologue_init(&tcg_ctx);
4035#endif
4036
bellardb346ff42003-06-15 20:05:50 +00004037#if defined(TARGET_I386)
bellard2e255c62003-08-21 23:25:21 +00004038 cpu_x86_set_cpl(env, 3);
4039
bellard3802ce22003-07-26 18:02:28 +00004040 env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
bellard1bde4652005-01-12 22:34:47 +00004041 env->hflags |= HF_PE_MASK;
Eduardo Habkost0514ef22013-04-22 16:00:15 -03004042 if (env->features[FEAT_1_EDX] & CPUID_SSE) {
bellard1bde4652005-01-12 22:34:47 +00004043 env->cr[4] |= CR4_OSFXSR_MASK;
4044 env->hflags |= HF_OSFXSR_MASK;
4045 }
bellardd2fd1af2007-11-14 18:08:56 +00004046#ifndef TARGET_ABI32
bellard4dbc4222007-11-15 15:27:03 +00004047 /* enable 64 bit mode if possible */
Eduardo Habkost0514ef22013-04-22 16:00:15 -03004048 if (!(env->features[FEAT_8000_0001_EDX] & CPUID_EXT2_LM)) {
bellard4dbc4222007-11-15 15:27:03 +00004049 fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n");
4050 exit(1);
4051 }
bellardd2fd1af2007-11-14 18:08:56 +00004052 env->cr[4] |= CR4_PAE_MASK;
bellard4dbc4222007-11-15 15:27:03 +00004053 env->efer |= MSR_EFER_LMA | MSR_EFER_LME;
bellardd2fd1af2007-11-14 18:08:56 +00004054 env->hflags |= HF_LMA_MASK;
4055#endif
bellard1bde4652005-01-12 22:34:47 +00004056
bellard415e5612004-02-03 23:37:12 +00004057 /* flags setup : we activate the IRQs by default as in user mode */
4058 env->eflags |= IF_MASK;
ths3b46e622007-09-17 08:09:54 +00004059
bellard6dbad632003-03-16 18:05:05 +00004060 /* linux register setup */
bellardd2fd1af2007-11-14 18:08:56 +00004061#ifndef TARGET_ABI32
j_mayer84409dd2007-04-06 08:56:50 +00004062 env->regs[R_EAX] = regs->rax;
4063 env->regs[R_EBX] = regs->rbx;
4064 env->regs[R_ECX] = regs->rcx;
4065 env->regs[R_EDX] = regs->rdx;
4066 env->regs[R_ESI] = regs->rsi;
4067 env->regs[R_EDI] = regs->rdi;
4068 env->regs[R_EBP] = regs->rbp;
4069 env->regs[R_ESP] = regs->rsp;
4070 env->eip = regs->rip;
4071#else
bellard0ecfa992003-03-03 14:32:43 +00004072 env->regs[R_EAX] = regs->eax;
4073 env->regs[R_EBX] = regs->ebx;
4074 env->regs[R_ECX] = regs->ecx;
4075 env->regs[R_EDX] = regs->edx;
4076 env->regs[R_ESI] = regs->esi;
4077 env->regs[R_EDI] = regs->edi;
4078 env->regs[R_EBP] = regs->ebp;
4079 env->regs[R_ESP] = regs->esp;
bellarddab2ed92003-03-22 15:23:14 +00004080 env->eip = regs->eip;
j_mayer84409dd2007-04-06 08:56:50 +00004081#endif
bellard31e31b82003-02-18 22:55:36 +00004082
bellardf4beb512003-05-27 23:28:08 +00004083 /* linux interrupt setup */
balroge4415702008-11-10 02:55:33 +00004084#ifndef TARGET_ABI32
4085 env->idt.limit = 511;
4086#else
4087 env->idt.limit = 255;
4088#endif
4089 env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1),
4090 PROT_READ|PROT_WRITE,
4091 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
4092 idt_table = g2h(env->idt.base);
bellardf4beb512003-05-27 23:28:08 +00004093 set_idt(0, 0);
4094 set_idt(1, 0);
4095 set_idt(2, 0);
4096 set_idt(3, 3);
4097 set_idt(4, 3);
bellardec95da62008-05-12 12:23:31 +00004098 set_idt(5, 0);
bellardf4beb512003-05-27 23:28:08 +00004099 set_idt(6, 0);
4100 set_idt(7, 0);
4101 set_idt(8, 0);
4102 set_idt(9, 0);
4103 set_idt(10, 0);
4104 set_idt(11, 0);
4105 set_idt(12, 0);
4106 set_idt(13, 0);
4107 set_idt(14, 0);
4108 set_idt(15, 0);
4109 set_idt(16, 0);
4110 set_idt(17, 0);
4111 set_idt(18, 0);
4112 set_idt(19, 0);
4113 set_idt(0x80, 3);
4114
bellard6dbad632003-03-16 18:05:05 +00004115 /* linux segment setup */
bellard8d18e892007-11-14 15:18:40 +00004116 {
4117 uint64_t *gdt_table;
balroge4415702008-11-10 02:55:33 +00004118 env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES,
4119 PROT_READ|PROT_WRITE,
4120 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0);
bellard8d18e892007-11-14 15:18:40 +00004121 env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1;
balroge4415702008-11-10 02:55:33 +00004122 gdt_table = g2h(env->gdt.base);
bellardd2fd1af2007-11-14 18:08:56 +00004123#ifdef TARGET_ABI32
bellard8d18e892007-11-14 15:18:40 +00004124 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
4125 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
4126 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
bellardd2fd1af2007-11-14 18:08:56 +00004127#else
4128 /* 64 bit code segment */
4129 write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff,
4130 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
4131 DESC_L_MASK |
4132 (3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT));
4133#endif
bellard8d18e892007-11-14 15:18:40 +00004134 write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff,
4135 DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK |
4136 (3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT));
4137 }
bellard6dbad632003-03-16 18:05:05 +00004138 cpu_x86_load_seg(env, R_CS, __USER_CS);
bellardd2fd1af2007-11-14 18:08:56 +00004139 cpu_x86_load_seg(env, R_SS, __USER_DS);
4140#ifdef TARGET_ABI32
bellard6dbad632003-03-16 18:05:05 +00004141 cpu_x86_load_seg(env, R_DS, __USER_DS);
4142 cpu_x86_load_seg(env, R_ES, __USER_DS);
bellard6dbad632003-03-16 18:05:05 +00004143 cpu_x86_load_seg(env, R_FS, __USER_DS);
4144 cpu_x86_load_seg(env, R_GS, __USER_DS);
thsd6eb40f2007-06-21 22:55:02 +00004145 /* This hack makes Wine work... */
4146 env->segs[R_FS].selector = 0;
bellardd2fd1af2007-11-14 18:08:56 +00004147#else
4148 cpu_x86_load_seg(env, R_DS, 0);
4149 cpu_x86_load_seg(env, R_ES, 0);
4150 cpu_x86_load_seg(env, R_FS, 0);
4151 cpu_x86_load_seg(env, R_GS, 0);
4152#endif
Alexander Graf99033ca2013-09-03 20:12:21 +01004153#elif defined(TARGET_AARCH64)
4154 {
4155 int i;
4156
4157 if (!(arm_feature(env, ARM_FEATURE_AARCH64))) {
4158 fprintf(stderr,
4159 "The selected ARM CPU does not support 64 bit mode\n");
4160 exit(1);
4161 }
4162
4163 for (i = 0; i < 31; i++) {
4164 env->xregs[i] = regs->regs[i];
4165 }
4166 env->pc = regs->pc;
4167 env->xregs[31] = regs->sp;
4168 }
bellardb346ff42003-06-15 20:05:50 +00004169#elif defined(TARGET_ARM)
4170 {
4171 int i;
bellardb5ff1b32005-11-26 10:38:39 +00004172 cpsr_write(env, regs->uregs[16], 0xffffffff);
bellardb346ff42003-06-15 20:05:50 +00004173 for(i = 0; i < 16; i++) {
4174 env->regs[i] = regs->uregs[i];
4175 }
Paul Brookd8fd2952012-03-30 18:02:50 +01004176 /* Enable BE8. */
4177 if (EF_ARM_EABI_VERSION(info->elf_flags) >= EF_ARM_EABI_VER4
4178 && (info->elf_flags & EF_ARM_BE8)) {
4179 env->bswap_code = 1;
4180 }
bellardb346ff42003-06-15 20:05:50 +00004181 }
Guan Xuetaod2fbca92011-04-12 16:27:03 +08004182#elif defined(TARGET_UNICORE32)
4183 {
4184 int i;
4185 cpu_asr_write(env, regs->uregs[32], 0xffffffff);
4186 for (i = 0; i < 32; i++) {
4187 env->regs[i] = regs->uregs[i];
4188 }
4189 }
bellard93ac68b2003-09-30 20:57:29 +00004190#elif defined(TARGET_SPARC)
bellard060366c2004-01-04 15:50:01 +00004191 {
4192 int i;
4193 env->pc = regs->pc;
4194 env->npc = regs->npc;
4195 env->y = regs->y;
4196 for(i = 0; i < 8; i++)
4197 env->gregs[i] = regs->u_regs[i];
4198 for(i = 0; i < 8; i++)
4199 env->regwptr[i] = regs->u_regs[i + 8];
4200 }
bellard67867302003-11-23 17:05:30 +00004201#elif defined(TARGET_PPC)
4202 {
4203 int i;
bellard3fc6c082005-07-02 20:59:34 +00004204
j_mayer0411a972007-10-25 21:35:50 +00004205#if defined(TARGET_PPC64)
4206#if defined(TARGET_ABI32)
4207 env->msr &= ~((target_ulong)1 << MSR_SF);
j_mayere85e7c62007-10-18 19:59:49 +00004208#else
j_mayer0411a972007-10-25 21:35:50 +00004209 env->msr |= (target_ulong)1 << MSR_SF;
4210#endif
j_mayer84409dd2007-04-06 08:56:50 +00004211#endif
bellard67867302003-11-23 17:05:30 +00004212 env->nip = regs->nip;
4213 for(i = 0; i < 32; i++) {
4214 env->gpr[i] = regs->gpr[i];
4215 }
4216 }
pbrooke6e59062006-10-22 00:18:54 +00004217#elif defined(TARGET_M68K)
4218 {
pbrooke6e59062006-10-22 00:18:54 +00004219 env->pc = regs->pc;
4220 env->dregs[0] = regs->d0;
4221 env->dregs[1] = regs->d1;
4222 env->dregs[2] = regs->d2;
4223 env->dregs[3] = regs->d3;
4224 env->dregs[4] = regs->d4;
4225 env->dregs[5] = regs->d5;
4226 env->dregs[6] = regs->d6;
4227 env->dregs[7] = regs->d7;
4228 env->aregs[0] = regs->a0;
4229 env->aregs[1] = regs->a1;
4230 env->aregs[2] = regs->a2;
4231 env->aregs[3] = regs->a3;
4232 env->aregs[4] = regs->a4;
4233 env->aregs[5] = regs->a5;
4234 env->aregs[6] = regs->a6;
4235 env->aregs[7] = regs->usp;
4236 env->sr = regs->sr;
4237 ts->sim_syscalls = 1;
4238 }
Edgar E. Iglesiasb779e292009-05-20 21:31:33 +02004239#elif defined(TARGET_MICROBLAZE)
4240 {
4241 env->regs[0] = regs->r0;
4242 env->regs[1] = regs->r1;
4243 env->regs[2] = regs->r2;
4244 env->regs[3] = regs->r3;
4245 env->regs[4] = regs->r4;
4246 env->regs[5] = regs->r5;
4247 env->regs[6] = regs->r6;
4248 env->regs[7] = regs->r7;
4249 env->regs[8] = regs->r8;
4250 env->regs[9] = regs->r9;
4251 env->regs[10] = regs->r10;
4252 env->regs[11] = regs->r11;
4253 env->regs[12] = regs->r12;
4254 env->regs[13] = regs->r13;
4255 env->regs[14] = regs->r14;
4256 env->regs[15] = regs->r15;
4257 env->regs[16] = regs->r16;
4258 env->regs[17] = regs->r17;
4259 env->regs[18] = regs->r18;
4260 env->regs[19] = regs->r19;
4261 env->regs[20] = regs->r20;
4262 env->regs[21] = regs->r21;
4263 env->regs[22] = regs->r22;
4264 env->regs[23] = regs->r23;
4265 env->regs[24] = regs->r24;
4266 env->regs[25] = regs->r25;
4267 env->regs[26] = regs->r26;
4268 env->regs[27] = regs->r27;
4269 env->regs[28] = regs->r28;
4270 env->regs[29] = regs->r29;
4271 env->regs[30] = regs->r30;
4272 env->regs[31] = regs->r31;
4273 env->sregs[SR_PC] = regs->pc;
4274 }
bellard048f6b42005-11-26 18:47:20 +00004275#elif defined(TARGET_MIPS)
4276 {
4277 int i;
4278
4279 for(i = 0; i < 32; i++) {
thsb5dc7732008-06-27 10:02:35 +00004280 env->active_tc.gpr[i] = regs->regs[i];
bellard048f6b42005-11-26 18:47:20 +00004281 }
Nathan Froyd0fddbbf2010-06-08 13:30:02 -07004282 env->active_tc.PC = regs->cp0_epc & ~(target_ulong)1;
4283 if (regs->cp0_epc & 1) {
4284 env->hflags |= MIPS_HFLAG_M16;
4285 }
bellard048f6b42005-11-26 18:47:20 +00004286 }
Jia Liud9627832012-07-20 15:50:52 +08004287#elif defined(TARGET_OPENRISC)
4288 {
4289 int i;
4290
4291 for (i = 0; i < 32; i++) {
4292 env->gpr[i] = regs->gpr[i];
4293 }
4294
4295 env->sr = regs->sr;
4296 env->pc = regs->pc;
4297 }
bellardfdf9b3e2006-04-27 21:07:38 +00004298#elif defined(TARGET_SH4)
4299 {
4300 int i;
4301
4302 for(i = 0; i < 16; i++) {
4303 env->gregs[i] = regs->regs[i];
4304 }
4305 env->pc = regs->pc;
4306 }
j_mayer7a3148a2007-04-05 07:13:51 +00004307#elif defined(TARGET_ALPHA)
4308 {
4309 int i;
4310
4311 for(i = 0; i < 28; i++) {
blueswir1992f48a2007-10-14 16:27:31 +00004312 env->ir[i] = ((abi_ulong *)regs)[i];
j_mayer7a3148a2007-04-05 07:13:51 +00004313 }
Richard Hendersondad081e2010-01-04 11:19:14 -08004314 env->ir[IR_SP] = regs->usp;
j_mayer7a3148a2007-04-05 07:13:51 +00004315 env->pc = regs->pc;
j_mayer7a3148a2007-04-05 07:13:51 +00004316 }
ths48733d12007-10-08 13:36:46 +00004317#elif defined(TARGET_CRIS)
4318 {
4319 env->regs[0] = regs->r0;
4320 env->regs[1] = regs->r1;
4321 env->regs[2] = regs->r2;
4322 env->regs[3] = regs->r3;
4323 env->regs[4] = regs->r4;
4324 env->regs[5] = regs->r5;
4325 env->regs[6] = regs->r6;
4326 env->regs[7] = regs->r7;
4327 env->regs[8] = regs->r8;
4328 env->regs[9] = regs->r9;
4329 env->regs[10] = regs->r10;
4330 env->regs[11] = regs->r11;
4331 env->regs[12] = regs->r12;
4332 env->regs[13] = regs->r13;
4333 env->regs[14] = info->start_stack;
4334 env->regs[15] = regs->acr;
4335 env->pc = regs->erp;
4336 }
Ulrich Hechta4c075f2009-07-24 16:57:31 +02004337#elif defined(TARGET_S390X)
4338 {
4339 int i;
4340 for (i = 0; i < 16; i++) {
4341 env->regs[i] = regs->gprs[i];
4342 }
4343 env->psw.mask = regs->psw.mask;
4344 env->psw.addr = regs->psw.addr;
4345 }
bellardb346ff42003-06-15 20:05:50 +00004346#else
4347#error unsupported target CPU
4348#endif
bellard31e31b82003-02-18 22:55:36 +00004349
Guan Xuetaod2fbca92011-04-12 16:27:03 +08004350#if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
pbrooka87295e2007-05-26 15:09:38 +00004351 ts->stack_base = info->start_stack;
4352 ts->heap_base = info->brk;
4353 /* This will be filled in on the first SYS_HEAPINFO call. */
4354 ts->heap_limit = 0;
4355#endif
4356
bellard74c33be2005-10-30 21:01:05 +00004357 if (gdbstub_port) {
Peter Maydellff7a9812011-09-06 14:15:50 +01004358 if (gdbserver_start(gdbstub_port) < 0) {
4359 fprintf(stderr, "qemu: could not open gdbserver on port %d\n",
4360 gdbstub_port);
4361 exit(1);
4362 }
Andreas Färberdb6b81d2013-06-27 19:49:31 +02004363 gdb_handlesig(cpu, 0);
bellard1fddef42005-04-17 19:16:13 +00004364 }
bellard1b6b0292003-03-22 17:31:38 +00004365 cpu_loop(env);
4366 /* never exits */
bellard31e31b82003-02-18 22:55:36 +00004367 return 0;
4368}