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/*
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* qemu user main
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <stdarg.h> |
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#include <string.h> |
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#include <errno.h> |
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#include <unistd.h> |
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#include <sys/mman.h> |
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#include <sys/syscall.h> |
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#include "qemu.h" |
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#include "qemu-common.h" |
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#include "cache-utils.h" |
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/* For tb_lock */
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#include "exec-all.h" |
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#include "envlist.h" |
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#define DEBUG_LOGFILE "/tmp/qemu.log" |
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char *exec_path;
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int singlestep;
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#if defined(CONFIG_USE_GUEST_BASE)
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unsigned long mmap_min_addr; |
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unsigned long guest_base; |
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int have_guest_base;
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#endif
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static const char *interp_prefix = CONFIG_QEMU_PREFIX; |
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const char *qemu_uname_release = CONFIG_UNAME_RELEASE; |
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|
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/* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
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we allocate a bigger stack. Need a better solution, for example
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by remapping the process stack directly at the right place */
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unsigned long x86_stack_size = 512 * 1024; |
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void gemu_log(const char *fmt, ...) |
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{ |
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va_list ap; |
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va_start(ap, fmt); |
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vfprintf(stderr, fmt, ap); |
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va_end(ap); |
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} |
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#if defined(TARGET_I386)
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int cpu_get_pic_interrupt(CPUState *env)
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{ |
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return -1; |
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} |
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#endif
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/* timers for rdtsc */
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#if 0
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static uint64_t emu_time;
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int64_t cpu_get_real_ticks(void)
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{
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return emu_time++;
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}
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#endif
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#if defined(CONFIG_USE_NPTL)
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/***********************************************************/
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/* Helper routines for implementing atomic operations. */
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/* To implement exclusive operations we force all cpus to syncronise.
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We don't require a full sync, only that no cpus are executing guest code.
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The alternative is to map target atomic ops onto host equivalents,
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which requires quite a lot of per host/target work. */
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static pthread_mutex_t cpu_list_mutex = PTHREAD_MUTEX_INITIALIZER;
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static pthread_mutex_t exclusive_lock = PTHREAD_MUTEX_INITIALIZER;
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static pthread_cond_t exclusive_cond = PTHREAD_COND_INITIALIZER;
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static pthread_cond_t exclusive_resume = PTHREAD_COND_INITIALIZER;
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static int pending_cpus; |
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/* Make sure everything is in a consistent state for calling fork(). */
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void fork_start(void) |
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{ |
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pthread_mutex_lock(&tb_lock); |
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pthread_mutex_lock(&exclusive_lock); |
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mmap_fork_start(); |
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} |
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void fork_end(int child) |
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{ |
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mmap_fork_end(child); |
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if (child) {
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/* Child processes created by fork() only have a single thread.
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Discard information about the parent threads. */
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first_cpu = thread_env; |
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thread_env->next_cpu = NULL;
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pending_cpus = 0;
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pthread_mutex_init(&exclusive_lock, NULL);
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pthread_mutex_init(&cpu_list_mutex, NULL);
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pthread_cond_init(&exclusive_cond, NULL);
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pthread_cond_init(&exclusive_resume, NULL);
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pthread_mutex_init(&tb_lock, NULL);
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gdbserver_fork(thread_env); |
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} else {
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pthread_mutex_unlock(&exclusive_lock); |
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pthread_mutex_unlock(&tb_lock); |
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} |
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} |
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/* Wait for pending exclusive operations to complete. The exclusive lock
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must be held. */
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static inline void exclusive_idle(void) |
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{ |
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while (pending_cpus) {
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pthread_cond_wait(&exclusive_resume, &exclusive_lock); |
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} |
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} |
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/* Start an exclusive operation.
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Must only be called from outside cpu_arm_exec. */
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static inline void start_exclusive(void) |
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{ |
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CPUState *other; |
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pthread_mutex_lock(&exclusive_lock); |
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exclusive_idle(); |
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pending_cpus = 1;
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/* Make all other cpus stop executing. */
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for (other = first_cpu; other; other = other->next_cpu) {
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if (other->running) {
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pending_cpus++; |
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cpu_exit(other); |
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} |
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} |
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if (pending_cpus > 1) { |
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pthread_cond_wait(&exclusive_cond, &exclusive_lock); |
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} |
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} |
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/* Finish an exclusive operation. */
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static inline void end_exclusive(void) |
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{ |
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pending_cpus = 0;
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pthread_cond_broadcast(&exclusive_resume); |
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pthread_mutex_unlock(&exclusive_lock); |
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} |
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/* Wait for exclusive ops to finish, and begin cpu execution. */
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static inline void cpu_exec_start(CPUState *env) |
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{ |
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pthread_mutex_lock(&exclusive_lock); |
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exclusive_idle(); |
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env->running = 1;
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pthread_mutex_unlock(&exclusive_lock); |
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} |
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/* Mark cpu as not executing, and release pending exclusive ops. */
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static inline void cpu_exec_end(CPUState *env) |
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{ |
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pthread_mutex_lock(&exclusive_lock); |
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env->running = 0;
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if (pending_cpus > 1) { |
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pending_cpus--; |
182 |
if (pending_cpus == 1) { |
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pthread_cond_signal(&exclusive_cond); |
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} |
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} |
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exclusive_idle(); |
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pthread_mutex_unlock(&exclusive_lock); |
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} |
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void cpu_list_lock(void) |
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{ |
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pthread_mutex_lock(&cpu_list_mutex); |
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} |
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void cpu_list_unlock(void) |
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{ |
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pthread_mutex_unlock(&cpu_list_mutex); |
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} |
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#else /* if !CONFIG_USE_NPTL */ |
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/* These are no-ops because we are not threadsafe. */
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static inline void cpu_exec_start(CPUState *env) |
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{ |
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} |
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static inline void cpu_exec_end(CPUState *env) |
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{ |
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} |
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static inline void start_exclusive(void) |
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{ |
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} |
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static inline void end_exclusive(void) |
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{ |
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} |
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void fork_start(void) |
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{ |
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} |
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void fork_end(int child) |
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{ |
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if (child) {
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gdbserver_fork(thread_env); |
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} |
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} |
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void cpu_list_lock(void) |
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{ |
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} |
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void cpu_list_unlock(void) |
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{ |
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} |
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#endif
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#ifdef TARGET_I386
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/***********************************************************/
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/* CPUX86 core interface */
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void cpu_smm_update(CPUState *env)
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{ |
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} |
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uint64_t cpu_get_tsc(CPUX86State *env) |
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{ |
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return cpu_get_real_ticks();
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} |
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static void write_dt(void *ptr, unsigned long addr, unsigned long limit, |
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int flags)
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{ |
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unsigned int e1, e2; |
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uint32_t *p; |
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e1 = (addr << 16) | (limit & 0xffff); |
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e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000); |
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e2 |= flags; |
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p = ptr; |
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p[0] = tswap32(e1);
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p[1] = tswap32(e2);
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} |
263 |
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static uint64_t *idt_table;
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#ifdef TARGET_X86_64
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static void set_gate64(void *ptr, unsigned int type, unsigned int dpl, |
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uint64_t addr, unsigned int sel) |
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{ |
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uint32_t *p, e1, e2; |
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e1 = (addr & 0xffff) | (sel << 16); |
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e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8); |
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p = ptr; |
273 |
p[0] = tswap32(e1);
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p[1] = tswap32(e2);
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p[2] = tswap32(addr >> 32); |
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p[3] = 0; |
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} |
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/* only dpl matters as we do only user space emulation */
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static void set_idt(int n, unsigned int dpl) |
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{ |
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set_gate64(idt_table + n * 2, 0, dpl, 0, 0); |
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} |
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#else
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static void set_gate(void *ptr, unsigned int type, unsigned int dpl, |
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uint32_t addr, unsigned int sel) |
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{ |
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uint32_t *p, e1, e2; |
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e1 = (addr & 0xffff) | (sel << 16); |
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e2 = (addr & 0xffff0000) | 0x8000 | (dpl << 13) | (type << 8); |
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p = ptr; |
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p[0] = tswap32(e1);
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p[1] = tswap32(e2);
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} |
294 |
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/* only dpl matters as we do only user space emulation */
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static void set_idt(int n, unsigned int dpl) |
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{ |
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set_gate(idt_table + n, 0, dpl, 0, 0); |
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} |
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#endif
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void cpu_loop(CPUX86State *env)
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{ |
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int trapnr;
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abi_ulong pc; |
306 |
target_siginfo_t info; |
307 |
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for(;;) {
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trapnr = cpu_x86_exec(env); |
310 |
switch(trapnr) {
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case 0x80: |
312 |
/* linux syscall from int $0x80 */
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env->regs[R_EAX] = do_syscall(env, |
314 |
env->regs[R_EAX], |
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env->regs[R_EBX], |
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env->regs[R_ECX], |
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env->regs[R_EDX], |
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env->regs[R_ESI], |
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env->regs[R_EDI], |
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env->regs[R_EBP]); |
321 |
break;
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#ifndef TARGET_ABI32
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case EXCP_SYSCALL:
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/* linux syscall from syscall intruction */
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env->regs[R_EAX] = do_syscall(env, |
326 |
env->regs[R_EAX], |
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env->regs[R_EDI], |
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env->regs[R_ESI], |
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env->regs[R_EDX], |
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env->regs[10],
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env->regs[8],
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env->regs[9]);
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env->eip = env->exception_next_eip; |
334 |
break;
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#endif
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case EXCP0B_NOSEG:
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case EXCP0C_STACK:
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info.si_signo = SIGBUS; |
339 |
info.si_errno = 0;
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info.si_code = TARGET_SI_KERNEL; |
341 |
info._sifields._sigfault._addr = 0;
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queue_signal(env, info.si_signo, &info); |
343 |
break;
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case EXCP0D_GPF:
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/* XXX: potential problem if ABI32 */
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#ifndef TARGET_X86_64
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if (env->eflags & VM_MASK) {
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handle_vm86_fault(env); |
349 |
} else
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#endif
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351 |
{ |
352 |
info.si_signo = SIGSEGV; |
353 |
info.si_errno = 0;
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354 |
info.si_code = TARGET_SI_KERNEL; |
355 |
info._sifields._sigfault._addr = 0;
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356 |
queue_signal(env, info.si_signo, &info); |
357 |
} |
358 |
break;
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359 |
case EXCP0E_PAGE:
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360 |
info.si_signo = SIGSEGV; |
361 |
info.si_errno = 0;
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362 |
if (!(env->error_code & 1)) |
363 |
info.si_code = TARGET_SEGV_MAPERR; |
364 |
else
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365 |
info.si_code = TARGET_SEGV_ACCERR; |
366 |
info._sifields._sigfault._addr = env->cr[2];
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367 |
queue_signal(env, info.si_signo, &info); |
368 |
break;
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369 |
case EXCP00_DIVZ:
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370 |
#ifndef TARGET_X86_64
|
371 |
if (env->eflags & VM_MASK) {
|
372 |
handle_vm86_trap(env, trapnr); |
373 |
} else
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374 |
#endif
|
375 |
{ |
376 |
/* division by zero */
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377 |
info.si_signo = SIGFPE; |
378 |
info.si_errno = 0;
|
379 |
info.si_code = TARGET_FPE_INTDIV; |
380 |
info._sifields._sigfault._addr = env->eip; |
381 |
queue_signal(env, info.si_signo, &info); |
382 |
} |
383 |
break;
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384 |
case EXCP01_DB:
|
385 |
case EXCP03_INT3:
|
386 |
#ifndef TARGET_X86_64
|
387 |
if (env->eflags & VM_MASK) {
|
388 |
handle_vm86_trap(env, trapnr); |
389 |
} else
|
390 |
#endif
|
391 |
{ |
392 |
info.si_signo = SIGTRAP; |
393 |
info.si_errno = 0;
|
394 |
if (trapnr == EXCP01_DB) {
|
395 |
info.si_code = TARGET_TRAP_BRKPT; |
396 |
info._sifields._sigfault._addr = env->eip; |
397 |
} else {
|
398 |
info.si_code = TARGET_SI_KERNEL; |
399 |
info._sifields._sigfault._addr = 0;
|
400 |
} |
401 |
queue_signal(env, info.si_signo, &info); |
402 |
} |
403 |
break;
|
404 |
case EXCP04_INTO:
|
405 |
case EXCP05_BOUND:
|
406 |
#ifndef TARGET_X86_64
|
407 |
if (env->eflags & VM_MASK) {
|
408 |
handle_vm86_trap(env, trapnr); |
409 |
} else
|
410 |
#endif
|
411 |
{ |
412 |
info.si_signo = SIGSEGV; |
413 |
info.si_errno = 0;
|
414 |
info.si_code = TARGET_SI_KERNEL; |
415 |
info._sifields._sigfault._addr = 0;
|
416 |
queue_signal(env, info.si_signo, &info); |
417 |
} |
418 |
break;
|
419 |
case EXCP06_ILLOP:
|
420 |
info.si_signo = SIGILL; |
421 |
info.si_errno = 0;
|
422 |
info.si_code = TARGET_ILL_ILLOPN; |
423 |
info._sifields._sigfault._addr = env->eip; |
424 |
queue_signal(env, info.si_signo, &info); |
425 |
break;
|
426 |
case EXCP_INTERRUPT:
|
427 |
/* just indicate that signals should be handled asap */
|
428 |
break;
|
429 |
case EXCP_DEBUG:
|
430 |
{ |
431 |
int sig;
|
432 |
|
433 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
434 |
if (sig)
|
435 |
{ |
436 |
info.si_signo = sig; |
437 |
info.si_errno = 0;
|
438 |
info.si_code = TARGET_TRAP_BRKPT; |
439 |
queue_signal(env, info.si_signo, &info); |
440 |
} |
441 |
} |
442 |
break;
|
443 |
default:
|
444 |
pc = env->segs[R_CS].base + env->eip; |
445 |
fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
|
446 |
(long)pc, trapnr);
|
447 |
abort(); |
448 |
} |
449 |
process_pending_signals(env); |
450 |
} |
451 |
} |
452 |
#endif
|
453 |
|
454 |
#ifdef TARGET_ARM
|
455 |
|
456 |
static void arm_cache_flush(abi_ulong start, abi_ulong last) |
457 |
{ |
458 |
abi_ulong addr, last1; |
459 |
|
460 |
if (last < start)
|
461 |
return;
|
462 |
addr = start; |
463 |
for(;;) {
|
464 |
last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
|
465 |
if (last1 > last)
|
466 |
last1 = last; |
467 |
tb_invalidate_page_range(addr, last1 + 1);
|
468 |
if (last1 == last)
|
469 |
break;
|
470 |
addr = last1 + 1;
|
471 |
} |
472 |
} |
473 |
|
474 |
/* Handle a jump to the kernel code page. */
|
475 |
static int |
476 |
do_kernel_trap(CPUARMState *env) |
477 |
{ |
478 |
uint32_t addr; |
479 |
uint32_t cpsr; |
480 |
uint32_t val; |
481 |
|
482 |
switch (env->regs[15]) { |
483 |
case 0xffff0fa0: /* __kernel_memory_barrier */ |
484 |
/* ??? No-op. Will need to do better for SMP. */
|
485 |
break;
|
486 |
case 0xffff0fc0: /* __kernel_cmpxchg */ |
487 |
/* XXX: This only works between threads, not between processes.
|
488 |
It's probably possible to implement this with native host
|
489 |
operations. However things like ldrex/strex are much harder so
|
490 |
there's not much point trying. */
|
491 |
start_exclusive(); |
492 |
cpsr = cpsr_read(env); |
493 |
addr = env->regs[2];
|
494 |
/* FIXME: This should SEGV if the access fails. */
|
495 |
if (get_user_u32(val, addr))
|
496 |
val = ~env->regs[0];
|
497 |
if (val == env->regs[0]) { |
498 |
val = env->regs[1];
|
499 |
/* FIXME: Check for segfaults. */
|
500 |
put_user_u32(val, addr); |
501 |
env->regs[0] = 0; |
502 |
cpsr |= CPSR_C; |
503 |
} else {
|
504 |
env->regs[0] = -1; |
505 |
cpsr &= ~CPSR_C; |
506 |
} |
507 |
cpsr_write(env, cpsr, CPSR_C); |
508 |
end_exclusive(); |
509 |
break;
|
510 |
case 0xffff0fe0: /* __kernel_get_tls */ |
511 |
env->regs[0] = env->cp15.c13_tls2;
|
512 |
break;
|
513 |
default:
|
514 |
return 1; |
515 |
} |
516 |
/* Jump back to the caller. */
|
517 |
addr = env->regs[14];
|
518 |
if (addr & 1) { |
519 |
env->thumb = 1;
|
520 |
addr &= ~1;
|
521 |
} |
522 |
env->regs[15] = addr;
|
523 |
|
524 |
return 0; |
525 |
} |
526 |
|
527 |
static int do_strex(CPUARMState *env) |
528 |
{ |
529 |
uint32_t val; |
530 |
int size;
|
531 |
int rc = 1; |
532 |
int segv = 0; |
533 |
uint32_t addr; |
534 |
start_exclusive(); |
535 |
addr = env->exclusive_addr; |
536 |
if (addr != env->exclusive_test) {
|
537 |
goto fail;
|
538 |
} |
539 |
size = env->exclusive_info & 0xf;
|
540 |
switch (size) {
|
541 |
case 0: |
542 |
segv = get_user_u8(val, addr); |
543 |
break;
|
544 |
case 1: |
545 |
segv = get_user_u16(val, addr); |
546 |
break;
|
547 |
case 2: |
548 |
case 3: |
549 |
segv = get_user_u32(val, addr); |
550 |
break;
|
551 |
} |
552 |
if (segv) {
|
553 |
env->cp15.c6_data = addr; |
554 |
goto done;
|
555 |
} |
556 |
if (val != env->exclusive_val) {
|
557 |
goto fail;
|
558 |
} |
559 |
if (size == 3) { |
560 |
segv = get_user_u32(val, addr + 4);
|
561 |
if (segv) {
|
562 |
env->cp15.c6_data = addr + 4;
|
563 |
goto done;
|
564 |
} |
565 |
if (val != env->exclusive_high) {
|
566 |
goto fail;
|
567 |
} |
568 |
} |
569 |
val = env->regs[(env->exclusive_info >> 8) & 0xf]; |
570 |
switch (size) {
|
571 |
case 0: |
572 |
segv = put_user_u8(val, addr); |
573 |
break;
|
574 |
case 1: |
575 |
segv = put_user_u16(val, addr); |
576 |
break;
|
577 |
case 2: |
578 |
case 3: |
579 |
segv = put_user_u32(val, addr); |
580 |
break;
|
581 |
} |
582 |
if (segv) {
|
583 |
env->cp15.c6_data = addr; |
584 |
goto done;
|
585 |
} |
586 |
if (size == 3) { |
587 |
val = env->regs[(env->exclusive_info >> 12) & 0xf]; |
588 |
segv = put_user_u32(val, addr); |
589 |
if (segv) {
|
590 |
env->cp15.c6_data = addr + 4;
|
591 |
goto done;
|
592 |
} |
593 |
} |
594 |
rc = 0;
|
595 |
fail:
|
596 |
env->regs[15] += 4; |
597 |
env->regs[(env->exclusive_info >> 4) & 0xf] = rc; |
598 |
done:
|
599 |
end_exclusive(); |
600 |
return segv;
|
601 |
} |
602 |
|
603 |
void cpu_loop(CPUARMState *env)
|
604 |
{ |
605 |
int trapnr;
|
606 |
unsigned int n, insn; |
607 |
target_siginfo_t info; |
608 |
uint32_t addr; |
609 |
|
610 |
for(;;) {
|
611 |
cpu_exec_start(env); |
612 |
trapnr = cpu_arm_exec(env); |
613 |
cpu_exec_end(env); |
614 |
switch(trapnr) {
|
615 |
case EXCP_UDEF:
|
616 |
{ |
617 |
TaskState *ts = env->opaque; |
618 |
uint32_t opcode; |
619 |
int rc;
|
620 |
|
621 |
/* we handle the FPU emulation here, as Linux */
|
622 |
/* we get the opcode */
|
623 |
/* FIXME - what to do if get_user() fails? */
|
624 |
get_user_u32(opcode, env->regs[15]);
|
625 |
|
626 |
rc = EmulateAll(opcode, &ts->fpa, env); |
627 |
if (rc == 0) { /* illegal instruction */ |
628 |
info.si_signo = SIGILL; |
629 |
info.si_errno = 0;
|
630 |
info.si_code = TARGET_ILL_ILLOPN; |
631 |
info._sifields._sigfault._addr = env->regs[15];
|
632 |
queue_signal(env, info.si_signo, &info); |
633 |
} else if (rc < 0) { /* FP exception */ |
634 |
int arm_fpe=0; |
635 |
|
636 |
/* translate softfloat flags to FPSR flags */
|
637 |
if (-rc & float_flag_invalid)
|
638 |
arm_fpe |= BIT_IOC; |
639 |
if (-rc & float_flag_divbyzero)
|
640 |
arm_fpe |= BIT_DZC; |
641 |
if (-rc & float_flag_overflow)
|
642 |
arm_fpe |= BIT_OFC; |
643 |
if (-rc & float_flag_underflow)
|
644 |
arm_fpe |= BIT_UFC; |
645 |
if (-rc & float_flag_inexact)
|
646 |
arm_fpe |= BIT_IXC; |
647 |
|
648 |
FPSR fpsr = ts->fpa.fpsr; |
649 |
//printf("fpsr 0x%x, arm_fpe 0x%x\n",fpsr,arm_fpe);
|
650 |
|
651 |
if (fpsr & (arm_fpe << 16)) { /* exception enabled? */ |
652 |
info.si_signo = SIGFPE; |
653 |
info.si_errno = 0;
|
654 |
|
655 |
/* ordered by priority, least first */
|
656 |
if (arm_fpe & BIT_IXC) info.si_code = TARGET_FPE_FLTRES;
|
657 |
if (arm_fpe & BIT_UFC) info.si_code = TARGET_FPE_FLTUND;
|
658 |
if (arm_fpe & BIT_OFC) info.si_code = TARGET_FPE_FLTOVF;
|
659 |
if (arm_fpe & BIT_DZC) info.si_code = TARGET_FPE_FLTDIV;
|
660 |
if (arm_fpe & BIT_IOC) info.si_code = TARGET_FPE_FLTINV;
|
661 |
|
662 |
info._sifields._sigfault._addr = env->regs[15];
|
663 |
queue_signal(env, info.si_signo, &info); |
664 |
} else {
|
665 |
env->regs[15] += 4; |
666 |
} |
667 |
|
668 |
/* accumulate unenabled exceptions */
|
669 |
if ((!(fpsr & BIT_IXE)) && (arm_fpe & BIT_IXC))
|
670 |
fpsr |= BIT_IXC; |
671 |
if ((!(fpsr & BIT_UFE)) && (arm_fpe & BIT_UFC))
|
672 |
fpsr |= BIT_UFC; |
673 |
if ((!(fpsr & BIT_OFE)) && (arm_fpe & BIT_OFC))
|
674 |
fpsr |= BIT_OFC; |
675 |
if ((!(fpsr & BIT_DZE)) && (arm_fpe & BIT_DZC))
|
676 |
fpsr |= BIT_DZC; |
677 |
if ((!(fpsr & BIT_IOE)) && (arm_fpe & BIT_IOC))
|
678 |
fpsr |= BIT_IOC; |
679 |
ts->fpa.fpsr=fpsr; |
680 |
} else { /* everything OK */ |
681 |
/* increment PC */
|
682 |
env->regs[15] += 4; |
683 |
} |
684 |
} |
685 |
break;
|
686 |
case EXCP_SWI:
|
687 |
case EXCP_BKPT:
|
688 |
{ |
689 |
env->eabi = 1;
|
690 |
/* system call */
|
691 |
if (trapnr == EXCP_BKPT) {
|
692 |
if (env->thumb) {
|
693 |
/* FIXME - what to do if get_user() fails? */
|
694 |
get_user_u16(insn, env->regs[15]);
|
695 |
n = insn & 0xff;
|
696 |
env->regs[15] += 2; |
697 |
} else {
|
698 |
/* FIXME - what to do if get_user() fails? */
|
699 |
get_user_u32(insn, env->regs[15]);
|
700 |
n = (insn & 0xf) | ((insn >> 4) & 0xff0); |
701 |
env->regs[15] += 4; |
702 |
} |
703 |
} else {
|
704 |
if (env->thumb) {
|
705 |
/* FIXME - what to do if get_user() fails? */
|
706 |
get_user_u16(insn, env->regs[15] - 2); |
707 |
n = insn & 0xff;
|
708 |
} else {
|
709 |
/* FIXME - what to do if get_user() fails? */
|
710 |
get_user_u32(insn, env->regs[15] - 4); |
711 |
n = insn & 0xffffff;
|
712 |
} |
713 |
} |
714 |
|
715 |
if (n == ARM_NR_cacheflush) {
|
716 |
arm_cache_flush(env->regs[0], env->regs[1]); |
717 |
} else if (n == ARM_NR_semihosting |
718 |
|| n == ARM_NR_thumb_semihosting) { |
719 |
env->regs[0] = do_arm_semihosting (env);
|
720 |
} else if (n == 0 || n >= ARM_SYSCALL_BASE |
721 |
|| (env->thumb && n == ARM_THUMB_SYSCALL)) { |
722 |
/* linux syscall */
|
723 |
if (env->thumb || n == 0) { |
724 |
n = env->regs[7];
|
725 |
} else {
|
726 |
n -= ARM_SYSCALL_BASE; |
727 |
env->eabi = 0;
|
728 |
} |
729 |
if ( n > ARM_NR_BASE) {
|
730 |
switch (n) {
|
731 |
case ARM_NR_cacheflush:
|
732 |
arm_cache_flush(env->regs[0], env->regs[1]); |
733 |
break;
|
734 |
case ARM_NR_set_tls:
|
735 |
cpu_set_tls(env, env->regs[0]);
|
736 |
env->regs[0] = 0; |
737 |
break;
|
738 |
default:
|
739 |
gemu_log("qemu: Unsupported ARM syscall: 0x%x\n",
|
740 |
n); |
741 |
env->regs[0] = -TARGET_ENOSYS;
|
742 |
break;
|
743 |
} |
744 |
} else {
|
745 |
env->regs[0] = do_syscall(env,
|
746 |
n, |
747 |
env->regs[0],
|
748 |
env->regs[1],
|
749 |
env->regs[2],
|
750 |
env->regs[3],
|
751 |
env->regs[4],
|
752 |
env->regs[5]);
|
753 |
} |
754 |
} else {
|
755 |
goto error;
|
756 |
} |
757 |
} |
758 |
break;
|
759 |
case EXCP_INTERRUPT:
|
760 |
/* just indicate that signals should be handled asap */
|
761 |
break;
|
762 |
case EXCP_PREFETCH_ABORT:
|
763 |
addr = env->cp15.c6_insn; |
764 |
goto do_segv;
|
765 |
case EXCP_DATA_ABORT:
|
766 |
addr = env->cp15.c6_data; |
767 |
goto do_segv;
|
768 |
do_segv:
|
769 |
{ |
770 |
info.si_signo = SIGSEGV; |
771 |
info.si_errno = 0;
|
772 |
/* XXX: check env->error_code */
|
773 |
info.si_code = TARGET_SEGV_MAPERR; |
774 |
info._sifields._sigfault._addr = addr; |
775 |
queue_signal(env, info.si_signo, &info); |
776 |
} |
777 |
break;
|
778 |
case EXCP_DEBUG:
|
779 |
{ |
780 |
int sig;
|
781 |
|
782 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
783 |
if (sig)
|
784 |
{ |
785 |
info.si_signo = sig; |
786 |
info.si_errno = 0;
|
787 |
info.si_code = TARGET_TRAP_BRKPT; |
788 |
queue_signal(env, info.si_signo, &info); |
789 |
} |
790 |
} |
791 |
break;
|
792 |
case EXCP_KERNEL_TRAP:
|
793 |
if (do_kernel_trap(env))
|
794 |
goto error;
|
795 |
break;
|
796 |
case EXCP_STREX:
|
797 |
if (do_strex(env)) {
|
798 |
addr = env->cp15.c6_data; |
799 |
goto do_segv;
|
800 |
} |
801 |
break;
|
802 |
default:
|
803 |
error:
|
804 |
fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
|
805 |
trapnr); |
806 |
cpu_dump_state(env, stderr, fprintf, 0);
|
807 |
abort(); |
808 |
} |
809 |
process_pending_signals(env); |
810 |
} |
811 |
} |
812 |
|
813 |
#endif
|
814 |
|
815 |
#ifdef TARGET_SPARC
|
816 |
#define SPARC64_STACK_BIAS 2047 |
817 |
|
818 |
//#define DEBUG_WIN
|
819 |
|
820 |
/* WARNING: dealing with register windows _is_ complicated. More info
|
821 |
can be found at http://www.sics.se/~psm/sparcstack.html */
|
822 |
static inline int get_reg_index(CPUSPARCState *env, int cwp, int index) |
823 |
{ |
824 |
index = (index + cwp * 16) % (16 * env->nwindows); |
825 |
/* wrap handling : if cwp is on the last window, then we use the
|
826 |
registers 'after' the end */
|
827 |
if (index < 8 && env->cwp == env->nwindows - 1) |
828 |
index += 16 * env->nwindows;
|
829 |
return index;
|
830 |
} |
831 |
|
832 |
/* save the register window 'cwp1' */
|
833 |
static inline void save_window_offset(CPUSPARCState *env, int cwp1) |
834 |
{ |
835 |
unsigned int i; |
836 |
abi_ulong sp_ptr; |
837 |
|
838 |
sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
|
839 |
#ifdef TARGET_SPARC64
|
840 |
if (sp_ptr & 3) |
841 |
sp_ptr += SPARC64_STACK_BIAS; |
842 |
#endif
|
843 |
#if defined(DEBUG_WIN)
|
844 |
printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n", |
845 |
sp_ptr, cwp1); |
846 |
#endif
|
847 |
for(i = 0; i < 16; i++) { |
848 |
/* FIXME - what to do if put_user() fails? */
|
849 |
put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
|
850 |
sp_ptr += sizeof(abi_ulong);
|
851 |
} |
852 |
} |
853 |
|
854 |
static void save_window(CPUSPARCState *env) |
855 |
{ |
856 |
#ifndef TARGET_SPARC64
|
857 |
unsigned int new_wim; |
858 |
new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) & |
859 |
((1LL << env->nwindows) - 1); |
860 |
save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
|
861 |
env->wim = new_wim; |
862 |
#else
|
863 |
save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
|
864 |
env->cansave++; |
865 |
env->canrestore--; |
866 |
#endif
|
867 |
} |
868 |
|
869 |
static void restore_window(CPUSPARCState *env) |
870 |
{ |
871 |
#ifndef TARGET_SPARC64
|
872 |
unsigned int new_wim; |
873 |
#endif
|
874 |
unsigned int i, cwp1; |
875 |
abi_ulong sp_ptr; |
876 |
|
877 |
#ifndef TARGET_SPARC64
|
878 |
new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) & |
879 |
((1LL << env->nwindows) - 1); |
880 |
#endif
|
881 |
|
882 |
/* restore the invalid window */
|
883 |
cwp1 = cpu_cwp_inc(env, env->cwp + 1);
|
884 |
sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
|
885 |
#ifdef TARGET_SPARC64
|
886 |
if (sp_ptr & 3) |
887 |
sp_ptr += SPARC64_STACK_BIAS; |
888 |
#endif
|
889 |
#if defined(DEBUG_WIN)
|
890 |
printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n", |
891 |
sp_ptr, cwp1); |
892 |
#endif
|
893 |
for(i = 0; i < 16; i++) { |
894 |
/* FIXME - what to do if get_user() fails? */
|
895 |
get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
|
896 |
sp_ptr += sizeof(abi_ulong);
|
897 |
} |
898 |
#ifdef TARGET_SPARC64
|
899 |
env->canrestore++; |
900 |
if (env->cleanwin < env->nwindows - 1) |
901 |
env->cleanwin++; |
902 |
env->cansave--; |
903 |
#else
|
904 |
env->wim = new_wim; |
905 |
#endif
|
906 |
} |
907 |
|
908 |
static void flush_windows(CPUSPARCState *env) |
909 |
{ |
910 |
int offset, cwp1;
|
911 |
|
912 |
offset = 1;
|
913 |
for(;;) {
|
914 |
/* if restore would invoke restore_window(), then we can stop */
|
915 |
cwp1 = cpu_cwp_inc(env, env->cwp + offset); |
916 |
#ifndef TARGET_SPARC64
|
917 |
if (env->wim & (1 << cwp1)) |
918 |
break;
|
919 |
#else
|
920 |
if (env->canrestore == 0) |
921 |
break;
|
922 |
env->cansave++; |
923 |
env->canrestore--; |
924 |
#endif
|
925 |
save_window_offset(env, cwp1); |
926 |
offset++; |
927 |
} |
928 |
cwp1 = cpu_cwp_inc(env, env->cwp + 1);
|
929 |
#ifndef TARGET_SPARC64
|
930 |
/* set wim so that restore will reload the registers */
|
931 |
env->wim = 1 << cwp1;
|
932 |
#endif
|
933 |
#if defined(DEBUG_WIN)
|
934 |
printf("flush_windows: nb=%d\n", offset - 1); |
935 |
#endif
|
936 |
} |
937 |
|
938 |
void cpu_loop (CPUSPARCState *env)
|
939 |
{ |
940 |
int trapnr, ret;
|
941 |
target_siginfo_t info; |
942 |
|
943 |
while (1) { |
944 |
trapnr = cpu_sparc_exec (env); |
945 |
|
946 |
switch (trapnr) {
|
947 |
#ifndef TARGET_SPARC64
|
948 |
case 0x88: |
949 |
case 0x90: |
950 |
#else
|
951 |
case 0x110: |
952 |
case 0x16d: |
953 |
#endif
|
954 |
ret = do_syscall (env, env->gregs[1],
|
955 |
env->regwptr[0], env->regwptr[1], |
956 |
env->regwptr[2], env->regwptr[3], |
957 |
env->regwptr[4], env->regwptr[5]); |
958 |
if ((unsigned int)ret >= (unsigned int)(-515)) { |
959 |
#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
|
960 |
env->xcc |= PSR_CARRY; |
961 |
#else
|
962 |
env->psr |= PSR_CARRY; |
963 |
#endif
|
964 |
ret = -ret; |
965 |
} else {
|
966 |
#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
|
967 |
env->xcc &= ~PSR_CARRY; |
968 |
#else
|
969 |
env->psr &= ~PSR_CARRY; |
970 |
#endif
|
971 |
} |
972 |
env->regwptr[0] = ret;
|
973 |
/* next instruction */
|
974 |
env->pc = env->npc; |
975 |
env->npc = env->npc + 4;
|
976 |
break;
|
977 |
case 0x83: /* flush windows */ |
978 |
#ifdef TARGET_ABI32
|
979 |
case 0x103: |
980 |
#endif
|
981 |
flush_windows(env); |
982 |
/* next instruction */
|
983 |
env->pc = env->npc; |
984 |
env->npc = env->npc + 4;
|
985 |
break;
|
986 |
#ifndef TARGET_SPARC64
|
987 |
case TT_WIN_OVF: /* window overflow */ |
988 |
save_window(env); |
989 |
break;
|
990 |
case TT_WIN_UNF: /* window underflow */ |
991 |
restore_window(env); |
992 |
break;
|
993 |
case TT_TFAULT:
|
994 |
case TT_DFAULT:
|
995 |
{ |
996 |
info.si_signo = SIGSEGV; |
997 |
info.si_errno = 0;
|
998 |
/* XXX: check env->error_code */
|
999 |
info.si_code = TARGET_SEGV_MAPERR; |
1000 |
info._sifields._sigfault._addr = env->mmuregs[4];
|
1001 |
queue_signal(env, info.si_signo, &info); |
1002 |
} |
1003 |
break;
|
1004 |
#else
|
1005 |
case TT_SPILL: /* window overflow */ |
1006 |
save_window(env); |
1007 |
break;
|
1008 |
case TT_FILL: /* window underflow */ |
1009 |
restore_window(env); |
1010 |
break;
|
1011 |
case TT_TFAULT:
|
1012 |
case TT_DFAULT:
|
1013 |
{ |
1014 |
info.si_signo = SIGSEGV; |
1015 |
info.si_errno = 0;
|
1016 |
/* XXX: check env->error_code */
|
1017 |
info.si_code = TARGET_SEGV_MAPERR; |
1018 |
if (trapnr == TT_DFAULT)
|
1019 |
info._sifields._sigfault._addr = env->dmmuregs[4];
|
1020 |
else
|
1021 |
info._sifields._sigfault._addr = cpu_tsptr(env)->tpc; |
1022 |
queue_signal(env, info.si_signo, &info); |
1023 |
} |
1024 |
break;
|
1025 |
#ifndef TARGET_ABI32
|
1026 |
case 0x16e: |
1027 |
flush_windows(env); |
1028 |
sparc64_get_context(env); |
1029 |
break;
|
1030 |
case 0x16f: |
1031 |
flush_windows(env); |
1032 |
sparc64_set_context(env); |
1033 |
break;
|
1034 |
#endif
|
1035 |
#endif
|
1036 |
case EXCP_INTERRUPT:
|
1037 |
/* just indicate that signals should be handled asap */
|
1038 |
break;
|
1039 |
case EXCP_DEBUG:
|
1040 |
{ |
1041 |
int sig;
|
1042 |
|
1043 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
1044 |
if (sig)
|
1045 |
{ |
1046 |
info.si_signo = sig; |
1047 |
info.si_errno = 0;
|
1048 |
info.si_code = TARGET_TRAP_BRKPT; |
1049 |
queue_signal(env, info.si_signo, &info); |
1050 |
} |
1051 |
} |
1052 |
break;
|
1053 |
default:
|
1054 |
printf ("Unhandled trap: 0x%x\n", trapnr);
|
1055 |
cpu_dump_state(env, stderr, fprintf, 0);
|
1056 |
exit (1);
|
1057 |
} |
1058 |
process_pending_signals (env); |
1059 |
} |
1060 |
} |
1061 |
|
1062 |
#endif
|
1063 |
|
1064 |
#ifdef TARGET_PPC
|
1065 |
static inline uint64_t cpu_ppc_get_tb (CPUState *env) |
1066 |
{ |
1067 |
/* TO FIX */
|
1068 |
return 0; |
1069 |
} |
1070 |
|
1071 |
uint64_t cpu_ppc_load_tbl (CPUState *env) |
1072 |
{ |
1073 |
return cpu_ppc_get_tb(env);
|
1074 |
} |
1075 |
|
1076 |
uint32_t cpu_ppc_load_tbu (CPUState *env) |
1077 |
{ |
1078 |
return cpu_ppc_get_tb(env) >> 32; |
1079 |
} |
1080 |
|
1081 |
uint32_t cpu_ppc_load_atbl (CPUState *env) |
1082 |
{ |
1083 |
return cpu_ppc_get_tb(env) & 0xFFFFFFFF; |
1084 |
} |
1085 |
|
1086 |
uint32_t cpu_ppc_load_atbu (CPUState *env) |
1087 |
{ |
1088 |
return cpu_ppc_get_tb(env) >> 32; |
1089 |
} |
1090 |
|
1091 |
uint32_t cpu_ppc601_load_rtcu (CPUState *env) |
1092 |
__attribute__ (( alias ("cpu_ppc_load_tbu") ));
|
1093 |
|
1094 |
uint32_t cpu_ppc601_load_rtcl (CPUState *env) |
1095 |
{ |
1096 |
return cpu_ppc_load_tbl(env) & 0x3FFFFF80; |
1097 |
} |
1098 |
|
1099 |
/* XXX: to be fixed */
|
1100 |
int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, target_ulong *valp) |
1101 |
{ |
1102 |
return -1; |
1103 |
} |
1104 |
|
1105 |
int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, target_ulong val) |
1106 |
{ |
1107 |
return -1; |
1108 |
} |
1109 |
|
1110 |
#define EXCP_DUMP(env, fmt, ...) \
|
1111 |
do { \
|
1112 |
fprintf(stderr, fmt , ## __VA_ARGS__); \ |
1113 |
cpu_dump_state(env, stderr, fprintf, 0); \
|
1114 |
qemu_log(fmt, ## __VA_ARGS__); \ |
1115 |
if (logfile) \
|
1116 |
log_cpu_state(env, 0); \
|
1117 |
} while (0) |
1118 |
|
1119 |
static int do_store_exclusive(CPUPPCState *env) |
1120 |
{ |
1121 |
target_ulong addr; |
1122 |
target_ulong page_addr; |
1123 |
target_ulong val; |
1124 |
int flags;
|
1125 |
int segv = 0; |
1126 |
|
1127 |
addr = env->reserve_ea; |
1128 |
page_addr = addr & TARGET_PAGE_MASK; |
1129 |
start_exclusive(); |
1130 |
mmap_lock(); |
1131 |
flags = page_get_flags(page_addr); |
1132 |
if ((flags & PAGE_READ) == 0) { |
1133 |
segv = 1;
|
1134 |
} else {
|
1135 |
int reg = env->reserve_info & 0x1f; |
1136 |
int size = (env->reserve_info >> 5) & 0xf; |
1137 |
int stored = 0; |
1138 |
|
1139 |
if (addr == env->reserve_addr) {
|
1140 |
switch (size) {
|
1141 |
case 1: segv = get_user_u8(val, addr); break; |
1142 |
case 2: segv = get_user_u16(val, addr); break; |
1143 |
case 4: segv = get_user_u32(val, addr); break; |
1144 |
#if defined(TARGET_PPC64)
|
1145 |
case 8: segv = get_user_u64(val, addr); break; |
1146 |
#endif
|
1147 |
default: abort();
|
1148 |
} |
1149 |
if (!segv && val == env->reserve_val) {
|
1150 |
val = env->gpr[reg]; |
1151 |
switch (size) {
|
1152 |
case 1: segv = put_user_u8(val, addr); break; |
1153 |
case 2: segv = put_user_u16(val, addr); break; |
1154 |
case 4: segv = put_user_u32(val, addr); break; |
1155 |
#if defined(TARGET_PPC64)
|
1156 |
case 8: segv = put_user_u64(val, addr); break; |
1157 |
#endif
|
1158 |
default: abort();
|
1159 |
} |
1160 |
if (!segv) {
|
1161 |
stored = 1;
|
1162 |
} |
1163 |
} |
1164 |
} |
1165 |
env->crf[0] = (stored << 1) | xer_so; |
1166 |
env->reserve_addr = (target_ulong)-1;
|
1167 |
} |
1168 |
if (!segv) {
|
1169 |
env->nip += 4;
|
1170 |
} |
1171 |
mmap_unlock(); |
1172 |
end_exclusive(); |
1173 |
return segv;
|
1174 |
} |
1175 |
|
1176 |
void cpu_loop(CPUPPCState *env)
|
1177 |
{ |
1178 |
target_siginfo_t info; |
1179 |
int trapnr;
|
1180 |
uint32_t ret; |
1181 |
|
1182 |
for(;;) {
|
1183 |
cpu_exec_start(env); |
1184 |
trapnr = cpu_ppc_exec(env); |
1185 |
cpu_exec_end(env); |
1186 |
switch(trapnr) {
|
1187 |
case POWERPC_EXCP_NONE:
|
1188 |
/* Just go on */
|
1189 |
break;
|
1190 |
case POWERPC_EXCP_CRITICAL: /* Critical input */ |
1191 |
cpu_abort(env, "Critical interrupt while in user mode. "
|
1192 |
"Aborting\n");
|
1193 |
break;
|
1194 |
case POWERPC_EXCP_MCHECK: /* Machine check exception */ |
1195 |
cpu_abort(env, "Machine check exception while in user mode. "
|
1196 |
"Aborting\n");
|
1197 |
break;
|
1198 |
case POWERPC_EXCP_DSI: /* Data storage exception */ |
1199 |
EXCP_DUMP(env, "Invalid data memory access: 0x" TARGET_FMT_lx "\n", |
1200 |
env->spr[SPR_DAR]); |
1201 |
/* XXX: check this. Seems bugged */
|
1202 |
switch (env->error_code & 0xFF000000) { |
1203 |
case 0x40000000: |
1204 |
info.si_signo = TARGET_SIGSEGV; |
1205 |
info.si_errno = 0;
|
1206 |
info.si_code = TARGET_SEGV_MAPERR; |
1207 |
break;
|
1208 |
case 0x04000000: |
1209 |
info.si_signo = TARGET_SIGILL; |
1210 |
info.si_errno = 0;
|
1211 |
info.si_code = TARGET_ILL_ILLADR; |
1212 |
break;
|
1213 |
case 0x08000000: |
1214 |
info.si_signo = TARGET_SIGSEGV; |
1215 |
info.si_errno = 0;
|
1216 |
info.si_code = TARGET_SEGV_ACCERR; |
1217 |
break;
|
1218 |
default:
|
1219 |
/* Let's send a regular segfault... */
|
1220 |
EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
|
1221 |
env->error_code); |
1222 |
info.si_signo = TARGET_SIGSEGV; |
1223 |
info.si_errno = 0;
|
1224 |
info.si_code = TARGET_SEGV_MAPERR; |
1225 |
break;
|
1226 |
} |
1227 |
info._sifields._sigfault._addr = env->nip; |
1228 |
queue_signal(env, info.si_signo, &info); |
1229 |
break;
|
1230 |
case POWERPC_EXCP_ISI: /* Instruction storage exception */ |
1231 |
EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" TARGET_FMT_lx
|
1232 |
"\n", env->spr[SPR_SRR0]);
|
1233 |
/* XXX: check this */
|
1234 |
switch (env->error_code & 0xFF000000) { |
1235 |
case 0x40000000: |
1236 |
info.si_signo = TARGET_SIGSEGV; |
1237 |
info.si_errno = 0;
|
1238 |
info.si_code = TARGET_SEGV_MAPERR; |
1239 |
break;
|
1240 |
case 0x10000000: |
1241 |
case 0x08000000: |
1242 |
info.si_signo = TARGET_SIGSEGV; |
1243 |
info.si_errno = 0;
|
1244 |
info.si_code = TARGET_SEGV_ACCERR; |
1245 |
break;
|
1246 |
default:
|
1247 |
/* Let's send a regular segfault... */
|
1248 |
EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
|
1249 |
env->error_code); |
1250 |
info.si_signo = TARGET_SIGSEGV; |
1251 |
info.si_errno = 0;
|
1252 |
info.si_code = TARGET_SEGV_MAPERR; |
1253 |
break;
|
1254 |
} |
1255 |
info._sifields._sigfault._addr = env->nip - 4;
|
1256 |
queue_signal(env, info.si_signo, &info); |
1257 |
break;
|
1258 |
case POWERPC_EXCP_EXTERNAL: /* External input */ |
1259 |
cpu_abort(env, "External interrupt while in user mode. "
|
1260 |
"Aborting\n");
|
1261 |
break;
|
1262 |
case POWERPC_EXCP_ALIGN: /* Alignment exception */ |
1263 |
EXCP_DUMP(env, "Unaligned memory access\n");
|
1264 |
/* XXX: check this */
|
1265 |
info.si_signo = TARGET_SIGBUS; |
1266 |
info.si_errno = 0;
|
1267 |
info.si_code = TARGET_BUS_ADRALN; |
1268 |
info._sifields._sigfault._addr = env->nip - 4;
|
1269 |
queue_signal(env, info.si_signo, &info); |
1270 |
break;
|
1271 |
case POWERPC_EXCP_PROGRAM: /* Program exception */ |
1272 |
/* XXX: check this */
|
1273 |
switch (env->error_code & ~0xF) { |
1274 |
case POWERPC_EXCP_FP:
|
1275 |
EXCP_DUMP(env, "Floating point program exception\n");
|
1276 |
info.si_signo = TARGET_SIGFPE; |
1277 |
info.si_errno = 0;
|
1278 |
switch (env->error_code & 0xF) { |
1279 |
case POWERPC_EXCP_FP_OX:
|
1280 |
info.si_code = TARGET_FPE_FLTOVF; |
1281 |
break;
|
1282 |
case POWERPC_EXCP_FP_UX:
|
1283 |
info.si_code = TARGET_FPE_FLTUND; |
1284 |
break;
|
1285 |
case POWERPC_EXCP_FP_ZX:
|
1286 |
case POWERPC_EXCP_FP_VXZDZ:
|
1287 |
info.si_code = TARGET_FPE_FLTDIV; |
1288 |
break;
|
1289 |
case POWERPC_EXCP_FP_XX:
|
1290 |
info.si_code = TARGET_FPE_FLTRES; |
1291 |
break;
|
1292 |
case POWERPC_EXCP_FP_VXSOFT:
|
1293 |
info.si_code = TARGET_FPE_FLTINV; |
1294 |
break;
|
1295 |
case POWERPC_EXCP_FP_VXSNAN:
|
1296 |
case POWERPC_EXCP_FP_VXISI:
|
1297 |
case POWERPC_EXCP_FP_VXIDI:
|
1298 |
case POWERPC_EXCP_FP_VXIMZ:
|
1299 |
case POWERPC_EXCP_FP_VXVC:
|
1300 |
case POWERPC_EXCP_FP_VXSQRT:
|
1301 |
case POWERPC_EXCP_FP_VXCVI:
|
1302 |
info.si_code = TARGET_FPE_FLTSUB; |
1303 |
break;
|
1304 |
default:
|
1305 |
EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
|
1306 |
env->error_code); |
1307 |
break;
|
1308 |
} |
1309 |
break;
|
1310 |
case POWERPC_EXCP_INVAL:
|
1311 |
EXCP_DUMP(env, "Invalid instruction\n");
|
1312 |
info.si_signo = TARGET_SIGILL; |
1313 |
info.si_errno = 0;
|
1314 |
switch (env->error_code & 0xF) { |
1315 |
case POWERPC_EXCP_INVAL_INVAL:
|
1316 |
info.si_code = TARGET_ILL_ILLOPC; |
1317 |
break;
|
1318 |
case POWERPC_EXCP_INVAL_LSWX:
|
1319 |
info.si_code = TARGET_ILL_ILLOPN; |
1320 |
break;
|
1321 |
case POWERPC_EXCP_INVAL_SPR:
|
1322 |
info.si_code = TARGET_ILL_PRVREG; |
1323 |
break;
|
1324 |
case POWERPC_EXCP_INVAL_FP:
|
1325 |
info.si_code = TARGET_ILL_COPROC; |
1326 |
break;
|
1327 |
default:
|
1328 |
EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
|
1329 |
env->error_code & 0xF);
|
1330 |
info.si_code = TARGET_ILL_ILLADR; |
1331 |
break;
|
1332 |
} |
1333 |
break;
|
1334 |
case POWERPC_EXCP_PRIV:
|
1335 |
EXCP_DUMP(env, "Privilege violation\n");
|
1336 |
info.si_signo = TARGET_SIGILL; |
1337 |
info.si_errno = 0;
|
1338 |
switch (env->error_code & 0xF) { |
1339 |
case POWERPC_EXCP_PRIV_OPC:
|
1340 |
info.si_code = TARGET_ILL_PRVOPC; |
1341 |
break;
|
1342 |
case POWERPC_EXCP_PRIV_REG:
|
1343 |
info.si_code = TARGET_ILL_PRVREG; |
1344 |
break;
|
1345 |
default:
|
1346 |
EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
|
1347 |
env->error_code & 0xF);
|
1348 |
info.si_code = TARGET_ILL_PRVOPC; |
1349 |
break;
|
1350 |
} |
1351 |
break;
|
1352 |
case POWERPC_EXCP_TRAP:
|
1353 |
cpu_abort(env, "Tried to call a TRAP\n");
|
1354 |
break;
|
1355 |
default:
|
1356 |
/* Should not happen ! */
|
1357 |
cpu_abort(env, "Unknown program exception (%02x)\n",
|
1358 |
env->error_code); |
1359 |
break;
|
1360 |
} |
1361 |
info._sifields._sigfault._addr = env->nip - 4;
|
1362 |
queue_signal(env, info.si_signo, &info); |
1363 |
break;
|
1364 |
case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */ |
1365 |
EXCP_DUMP(env, "No floating point allowed\n");
|
1366 |
info.si_signo = TARGET_SIGILL; |
1367 |
info.si_errno = 0;
|
1368 |
info.si_code = TARGET_ILL_COPROC; |
1369 |
info._sifields._sigfault._addr = env->nip - 4;
|
1370 |
queue_signal(env, info.si_signo, &info); |
1371 |
break;
|
1372 |
case POWERPC_EXCP_SYSCALL: /* System call exception */ |
1373 |
cpu_abort(env, "Syscall exception while in user mode. "
|
1374 |
"Aborting\n");
|
1375 |
break;
|
1376 |
case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */ |
1377 |
EXCP_DUMP(env, "No APU instruction allowed\n");
|
1378 |
info.si_signo = TARGET_SIGILL; |
1379 |
info.si_errno = 0;
|
1380 |
info.si_code = TARGET_ILL_COPROC; |
1381 |
info._sifields._sigfault._addr = env->nip - 4;
|
1382 |
queue_signal(env, info.si_signo, &info); |
1383 |
break;
|
1384 |
case POWERPC_EXCP_DECR: /* Decrementer exception */ |
1385 |
cpu_abort(env, "Decrementer interrupt while in user mode. "
|
1386 |
"Aborting\n");
|
1387 |
break;
|
1388 |
case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */ |
1389 |
cpu_abort(env, "Fix interval timer interrupt while in user mode. "
|
1390 |
"Aborting\n");
|
1391 |
break;
|
1392 |
case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */ |
1393 |
cpu_abort(env, "Watchdog timer interrupt while in user mode. "
|
1394 |
"Aborting\n");
|
1395 |
break;
|
1396 |
case POWERPC_EXCP_DTLB: /* Data TLB error */ |
1397 |
cpu_abort(env, "Data TLB exception while in user mode. "
|
1398 |
"Aborting\n");
|
1399 |
break;
|
1400 |
case POWERPC_EXCP_ITLB: /* Instruction TLB error */ |
1401 |
cpu_abort(env, "Instruction TLB exception while in user mode. "
|
1402 |
"Aborting\n");
|
1403 |
break;
|
1404 |
case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */ |
1405 |
EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
|
1406 |
info.si_signo = TARGET_SIGILL; |
1407 |
info.si_errno = 0;
|
1408 |
info.si_code = TARGET_ILL_COPROC; |
1409 |
info._sifields._sigfault._addr = env->nip - 4;
|
1410 |
queue_signal(env, info.si_signo, &info); |
1411 |
break;
|
1412 |
case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */ |
1413 |
cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
|
1414 |
break;
|
1415 |
case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */ |
1416 |
cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
|
1417 |
break;
|
1418 |
case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */ |
1419 |
cpu_abort(env, "Performance monitor exception not handled\n");
|
1420 |
break;
|
1421 |
case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */ |
1422 |
cpu_abort(env, "Doorbell interrupt while in user mode. "
|
1423 |
"Aborting\n");
|
1424 |
break;
|
1425 |
case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */ |
1426 |
cpu_abort(env, "Doorbell critical interrupt while in user mode. "
|
1427 |
"Aborting\n");
|
1428 |
break;
|
1429 |
case POWERPC_EXCP_RESET: /* System reset exception */ |
1430 |
cpu_abort(env, "Reset interrupt while in user mode. "
|
1431 |
"Aborting\n");
|
1432 |
break;
|
1433 |
case POWERPC_EXCP_DSEG: /* Data segment exception */ |
1434 |
cpu_abort(env, "Data segment exception while in user mode. "
|
1435 |
"Aborting\n");
|
1436 |
break;
|
1437 |
case POWERPC_EXCP_ISEG: /* Instruction segment exception */ |
1438 |
cpu_abort(env, "Instruction segment exception "
|
1439 |
"while in user mode. Aborting\n");
|
1440 |
break;
|
1441 |
/* PowerPC 64 with hypervisor mode support */
|
1442 |
case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */ |
1443 |
cpu_abort(env, "Hypervisor decrementer interrupt "
|
1444 |
"while in user mode. Aborting\n");
|
1445 |
break;
|
1446 |
case POWERPC_EXCP_TRACE: /* Trace exception */ |
1447 |
/* Nothing to do:
|
1448 |
* we use this exception to emulate step-by-step execution mode.
|
1449 |
*/
|
1450 |
break;
|
1451 |
/* PowerPC 64 with hypervisor mode support */
|
1452 |
case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */ |
1453 |
cpu_abort(env, "Hypervisor data storage exception "
|
1454 |
"while in user mode. Aborting\n");
|
1455 |
break;
|
1456 |
case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */ |
1457 |
cpu_abort(env, "Hypervisor instruction storage exception "
|
1458 |
"while in user mode. Aborting\n");
|
1459 |
break;
|
1460 |
case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */ |
1461 |
cpu_abort(env, "Hypervisor data segment exception "
|
1462 |
"while in user mode. Aborting\n");
|
1463 |
break;
|
1464 |
case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */ |
1465 |
cpu_abort(env, "Hypervisor instruction segment exception "
|
1466 |
"while in user mode. Aborting\n");
|
1467 |
break;
|
1468 |
case POWERPC_EXCP_VPU: /* Vector unavailable exception */ |
1469 |
EXCP_DUMP(env, "No Altivec instructions allowed\n");
|
1470 |
info.si_signo = TARGET_SIGILL; |
1471 |
info.si_errno = 0;
|
1472 |
info.si_code = TARGET_ILL_COPROC; |
1473 |
info._sifields._sigfault._addr = env->nip - 4;
|
1474 |
queue_signal(env, info.si_signo, &info); |
1475 |
break;
|
1476 |
case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */ |
1477 |
cpu_abort(env, "Programable interval timer interrupt "
|
1478 |
"while in user mode. Aborting\n");
|
1479 |
break;
|
1480 |
case POWERPC_EXCP_IO: /* IO error exception */ |
1481 |
cpu_abort(env, "IO error exception while in user mode. "
|
1482 |
"Aborting\n");
|
1483 |
break;
|
1484 |
case POWERPC_EXCP_RUNM: /* Run mode exception */ |
1485 |
cpu_abort(env, "Run mode exception while in user mode. "
|
1486 |
"Aborting\n");
|
1487 |
break;
|
1488 |
case POWERPC_EXCP_EMUL: /* Emulation trap exception */ |
1489 |
cpu_abort(env, "Emulation trap exception not handled\n");
|
1490 |
break;
|
1491 |
case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */ |
1492 |
cpu_abort(env, "Instruction fetch TLB exception "
|
1493 |
"while in user-mode. Aborting");
|
1494 |
break;
|
1495 |
case POWERPC_EXCP_DLTLB: /* Data load TLB miss */ |
1496 |
cpu_abort(env, "Data load TLB exception while in user-mode. "
|
1497 |
"Aborting");
|
1498 |
break;
|
1499 |
case POWERPC_EXCP_DSTLB: /* Data store TLB miss */ |
1500 |
cpu_abort(env, "Data store TLB exception while in user-mode. "
|
1501 |
"Aborting");
|
1502 |
break;
|
1503 |
case POWERPC_EXCP_FPA: /* Floating-point assist exception */ |
1504 |
cpu_abort(env, "Floating-point assist exception not handled\n");
|
1505 |
break;
|
1506 |
case POWERPC_EXCP_IABR: /* Instruction address breakpoint */ |
1507 |
cpu_abort(env, "Instruction address breakpoint exception "
|
1508 |
"not handled\n");
|
1509 |
break;
|
1510 |
case POWERPC_EXCP_SMI: /* System management interrupt */ |
1511 |
cpu_abort(env, "System management interrupt while in user mode. "
|
1512 |
"Aborting\n");
|
1513 |
break;
|
1514 |
case POWERPC_EXCP_THERM: /* Thermal interrupt */ |
1515 |
cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
|
1516 |
"Aborting\n");
|
1517 |
break;
|
1518 |
case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */ |
1519 |
cpu_abort(env, "Performance monitor exception not handled\n");
|
1520 |
break;
|
1521 |
case POWERPC_EXCP_VPUA: /* Vector assist exception */ |
1522 |
cpu_abort(env, "Vector assist exception not handled\n");
|
1523 |
break;
|
1524 |
case POWERPC_EXCP_SOFTP: /* Soft patch exception */ |
1525 |
cpu_abort(env, "Soft patch exception not handled\n");
|
1526 |
break;
|
1527 |
case POWERPC_EXCP_MAINT: /* Maintenance exception */ |
1528 |
cpu_abort(env, "Maintenance exception while in user mode. "
|
1529 |
"Aborting\n");
|
1530 |
break;
|
1531 |
case POWERPC_EXCP_STOP: /* stop translation */ |
1532 |
/* We did invalidate the instruction cache. Go on */
|
1533 |
break;
|
1534 |
case POWERPC_EXCP_BRANCH: /* branch instruction: */ |
1535 |
/* We just stopped because of a branch. Go on */
|
1536 |
break;
|
1537 |
case POWERPC_EXCP_SYSCALL_USER:
|
1538 |
/* system call in user-mode emulation */
|
1539 |
/* WARNING:
|
1540 |
* PPC ABI uses overflow flag in cr0 to signal an error
|
1541 |
* in syscalls.
|
1542 |
*/
|
1543 |
#if 0
|
1544 |
printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
|
1545 |
env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
|
1546 |
#endif
|
1547 |
env->crf[0] &= ~0x1; |
1548 |
ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4], |
1549 |
env->gpr[5], env->gpr[6], env->gpr[7], |
1550 |
env->gpr[8]);
|
1551 |
if (ret == (uint32_t)(-TARGET_QEMU_ESIGRETURN)) {
|
1552 |
/* Returning from a successful sigreturn syscall.
|
1553 |
Avoid corrupting register state. */
|
1554 |
break;
|
1555 |
} |
1556 |
if (ret > (uint32_t)(-515)) { |
1557 |
env->crf[0] |= 0x1; |
1558 |
ret = -ret; |
1559 |
} |
1560 |
env->gpr[3] = ret;
|
1561 |
#if 0
|
1562 |
printf("syscall returned 0x%08x (%d)\n", ret, ret);
|
1563 |
#endif
|
1564 |
break;
|
1565 |
case POWERPC_EXCP_STCX:
|
1566 |
if (do_store_exclusive(env)) {
|
1567 |
info.si_signo = TARGET_SIGSEGV; |
1568 |
info.si_errno = 0;
|
1569 |
info.si_code = TARGET_SEGV_MAPERR; |
1570 |
info._sifields._sigfault._addr = env->nip; |
1571 |
queue_signal(env, info.si_signo, &info); |
1572 |
} |
1573 |
break;
|
1574 |
case EXCP_DEBUG:
|
1575 |
{ |
1576 |
int sig;
|
1577 |
|
1578 |
sig = gdb_handlesig(env, TARGET_SIGTRAP); |
1579 |
if (sig) {
|
1580 |
info.si_signo = sig; |
1581 |
info.si_errno = 0;
|
1582 |
info.si_code = TARGET_TRAP_BRKPT; |
1583 |
queue_signal(env, info.si_signo, &info); |
1584 |
} |
1585 |
} |
1586 |
break;
|
1587 |
case EXCP_INTERRUPT:
|
1588 |
/* just indicate that signals should be handled asap */
|
1589 |
break;
|
1590 |
default:
|
1591 |
cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
|
1592 |
break;
|
1593 |
} |
1594 |
process_pending_signals(env); |
1595 |
} |
1596 |
} |
1597 |
#endif
|
1598 |
|
1599 |
#ifdef TARGET_MIPS
|
1600 |
|
1601 |
#define MIPS_SYS(name, args) args,
|
1602 |
|
1603 |
static const uint8_t mips_syscall_args[] = { |
1604 |
MIPS_SYS(sys_syscall , 0) /* 4000 */ |
1605 |
MIPS_SYS(sys_exit , 1)
|
1606 |
MIPS_SYS(sys_fork , 0)
|
1607 |
MIPS_SYS(sys_read , 3)
|
1608 |
MIPS_SYS(sys_write , 3)
|
1609 |
MIPS_SYS(sys_open , 3) /* 4005 */ |
1610 |
MIPS_SYS(sys_close , 1)
|
1611 |
MIPS_SYS(sys_waitpid , 3)
|
1612 |
MIPS_SYS(sys_creat , 2)
|
1613 |
MIPS_SYS(sys_link , 2)
|
1614 |
MIPS_SYS(sys_unlink , 1) /* 4010 */ |
1615 |
MIPS_SYS(sys_execve , 0)
|
1616 |
MIPS_SYS(sys_chdir , 1)
|
1617 |
MIPS_SYS(sys_time , 1)
|
1618 |
MIPS_SYS(sys_mknod , 3)
|
1619 |
MIPS_SYS(sys_chmod , 2) /* 4015 */ |
1620 |
MIPS_SYS(sys_lchown , 3)
|
1621 |
MIPS_SYS(sys_ni_syscall , 0)
|
1622 |
MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */ |
1623 |
MIPS_SYS(sys_lseek , 3)
|
1624 |
MIPS_SYS(sys_getpid , 0) /* 4020 */ |
1625 |
MIPS_SYS(sys_mount , 5)
|
1626 |
MIPS_SYS(sys_oldumount , 1)
|
1627 |
MIPS_SYS(sys_setuid , 1)
|
1628 |
MIPS_SYS(sys_getuid , 0)
|
1629 |
MIPS_SYS(sys_stime , 1) /* 4025 */ |
1630 |
MIPS_SYS(sys_ptrace , 4)
|
1631 |
MIPS_SYS(sys_alarm , 1)
|
1632 |
MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */ |
1633 |
MIPS_SYS(sys_pause , 0)
|
1634 |
MIPS_SYS(sys_utime , 2) /* 4030 */ |
1635 |
MIPS_SYS(sys_ni_syscall , 0)
|
1636 |
MIPS_SYS(sys_ni_syscall , 0)
|
1637 |
MIPS_SYS(sys_access , 2)
|
1638 |
MIPS_SYS(sys_nice , 1)
|
1639 |
MIPS_SYS(sys_ni_syscall , 0) /* 4035 */ |
1640 |
MIPS_SYS(sys_sync , 0)
|
1641 |
MIPS_SYS(sys_kill , 2)
|
1642 |
MIPS_SYS(sys_rename , 2)
|
1643 |
MIPS_SYS(sys_mkdir , 2)
|
1644 |
MIPS_SYS(sys_rmdir , 1) /* 4040 */ |
1645 |
MIPS_SYS(sys_dup , 1)
|
1646 |
MIPS_SYS(sys_pipe , 0)
|
1647 |
MIPS_SYS(sys_times , 1)
|
1648 |
MIPS_SYS(sys_ni_syscall , 0)
|
1649 |
MIPS_SYS(sys_brk , 1) /* 4045 */ |
1650 |
MIPS_SYS(sys_setgid , 1)
|
1651 |
MIPS_SYS(sys_getgid , 0)
|
1652 |
MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */ |
1653 |
MIPS_SYS(sys_geteuid , 0)
|
1654 |
MIPS_SYS(sys_getegid , 0) /* 4050 */ |
1655 |
MIPS_SYS(sys_acct , 0)
|
1656 |
MIPS_SYS(sys_umount , 2)
|
1657 |
MIPS_SYS(sys_ni_syscall , 0)
|
1658 |
MIPS_SYS(sys_ioctl , 3)
|
1659 |
MIPS_SYS(sys_fcntl , 3) /* 4055 */ |
1660 |
MIPS_SYS(sys_ni_syscall , 2)
|
1661 |
MIPS_SYS(sys_setpgid , 2)
|
1662 |
MIPS_SYS(sys_ni_syscall , 0)
|
1663 |
MIPS_SYS(sys_olduname , 1)
|
1664 |
MIPS_SYS(sys_umask , 1) /* 4060 */ |
1665 |
MIPS_SYS(sys_chroot , 1)
|
1666 |
MIPS_SYS(sys_ustat , 2)
|
1667 |
MIPS_SYS(sys_dup2 , 2)
|
1668 |
MIPS_SYS(sys_getppid , 0)
|
1669 |
MIPS_SYS(sys_getpgrp , 0) /* 4065 */ |
1670 |
MIPS_SYS(sys_setsid , 0)
|
1671 |
MIPS_SYS(sys_sigaction , 3)
|
1672 |
MIPS_SYS(sys_sgetmask , 0)
|
1673 |
MIPS_SYS(sys_ssetmask , 1)
|
1674 |
MIPS_SYS(sys_setreuid , 2) /* 4070 */ |
1675 |
MIPS_SYS(sys_setregid , 2)
|
1676 |
MIPS_SYS(sys_sigsuspend , 0)
|
1677 |
MIPS_SYS(sys_sigpending , 1)
|
1678 |
MIPS_SYS(sys_sethostname , 2)
|
1679 |
MIPS_SYS(sys_setrlimit , 2) /* 4075 */ |
1680 |
MIPS_SYS(sys_getrlimit , 2)
|
1681 |
MIPS_SYS(sys_getrusage , 2)
|
1682 |
MIPS_SYS(sys_gettimeofday, 2)
|
1683 |
MIPS_SYS(sys_settimeofday, 2)
|
1684 |
MIPS_SYS(sys_getgroups , 2) /* 4080 */ |
1685 |
MIPS_SYS(sys_setgroups , 2)
|
1686 |
MIPS_SYS(sys_ni_syscall , 0) /* old_select */ |
1687 |
MIPS_SYS(sys_symlink , 2)
|
1688 |
MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */ |
1689 |
MIPS_SYS(sys_readlink , 3) /* 4085 */ |
1690 |
MIPS_SYS(sys_uselib , 1)
|
1691 |
MIPS_SYS(sys_swapon , 2)
|
1692 |
MIPS_SYS(sys_reboot , 3)
|
1693 |
MIPS_SYS(old_readdir , 3)
|
1694 |
MIPS_SYS(old_mmap , 6) /* 4090 */ |
1695 |
MIPS_SYS(sys_munmap , 2)
|
1696 |
MIPS_SYS(sys_truncate , 2)
|
1697 |
MIPS_SYS(sys_ftruncate , 2)
|
1698 |
MIPS_SYS(sys_fchmod , 2)
|
1699 |
MIPS_SYS(sys_fchown , 3) /* 4095 */ |
1700 |
MIPS_SYS(sys_getpriority , 2)
|
1701 |
MIPS_SYS(sys_setpriority , 3)
|
1702 |
MIPS_SYS(sys_ni_syscall , 0)
|
1703 |
MIPS_SYS(sys_statfs , 2)
|
1704 |
MIPS_SYS(sys_fstatfs , 2) /* 4100 */ |
1705 |
MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */ |
1706 |
MIPS_SYS(sys_socketcall , 2)
|
1707 |
MIPS_SYS(sys_syslog , 3)
|
1708 |
MIPS_SYS(sys_setitimer , 3)
|
1709 |
MIPS_SYS(sys_getitimer , 2) /* 4105 */ |
1710 |
MIPS_SYS(sys_newstat , 2)
|
1711 |
MIPS_SYS(sys_newlstat , 2)
|
1712 |
MIPS_SYS(sys_newfstat , 2)
|
1713 |
MIPS_SYS(sys_uname , 1)
|
1714 |
MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */ |
1715 |
MIPS_SYS(sys_vhangup , 0)
|
1716 |
MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */ |
1717 |
MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */ |
1718 |
MIPS_SYS(sys_wait4 , 4)
|
1719 |
MIPS_SYS(sys_swapoff , 1) /* 4115 */ |
1720 |
MIPS_SYS(sys_sysinfo , 1)
|
1721 |
MIPS_SYS(sys_ipc , 6)
|
1722 |
MIPS_SYS(sys_fsync , 1)
|
1723 |
MIPS_SYS(sys_sigreturn , 0)
|
1724 |
MIPS_SYS(sys_clone , 6) /* 4120 */ |
1725 |
MIPS_SYS(sys_setdomainname, 2)
|
1726 |
MIPS_SYS(sys_newuname , 1)
|
1727 |
MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */ |
1728 |
MIPS_SYS(sys_adjtimex , 1)
|
1729 |
MIPS_SYS(sys_mprotect , 3) /* 4125 */ |
1730 |
MIPS_SYS(sys_sigprocmask , 3)
|
1731 |
MIPS_SYS(sys_ni_syscall , 0) /* was create_module */ |
1732 |
MIPS_SYS(sys_init_module , 5)
|
1733 |
MIPS_SYS(sys_delete_module, 1)
|
1734 |
MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */ |
1735 |
MIPS_SYS(sys_quotactl , 0)
|
1736 |
MIPS_SYS(sys_getpgid , 1)
|
1737 |
MIPS_SYS(sys_fchdir , 1)
|
1738 |
MIPS_SYS(sys_bdflush , 2)
|
1739 |
MIPS_SYS(sys_sysfs , 3) /* 4135 */ |
1740 |
MIPS_SYS(sys_personality , 1)
|
1741 |
MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */ |
1742 |
MIPS_SYS(sys_setfsuid , 1)
|
1743 |
MIPS_SYS(sys_setfsgid , 1)
|
1744 |
MIPS_SYS(sys_llseek , 5) /* 4140 */ |
1745 |
MIPS_SYS(sys_getdents , 3)
|
1746 |
MIPS_SYS(sys_select , 5)
|
1747 |
MIPS_SYS(sys_flock , 2)
|
1748 |
MIPS_SYS(sys_msync , 3)
|
1749 |
MIPS_SYS(sys_readv , 3) /* 4145 */ |
1750 |
MIPS_SYS(sys_writev , 3)
|
1751 |
MIPS_SYS(sys_cacheflush , 3)
|
1752 |
MIPS_SYS(sys_cachectl , 3)
|
1753 |
MIPS_SYS(sys_sysmips , 4)
|
1754 |
MIPS_SYS(sys_ni_syscall , 0) /* 4150 */ |
1755 |
MIPS_SYS(sys_getsid , 1)
|
1756 |
MIPS_SYS(sys_fdatasync , 0)
|
1757 |
MIPS_SYS(sys_sysctl , 1)
|
1758 |
MIPS_SYS(sys_mlock , 2)
|
1759 |
MIPS_SYS(sys_munlock , 2) /* 4155 */ |
1760 |
MIPS_SYS(sys_mlockall , 1)
|
1761 |
MIPS_SYS(sys_munlockall , 0)
|
1762 |
MIPS_SYS(sys_sched_setparam, 2)
|
1763 |
MIPS_SYS(sys_sched_getparam, 2)
|
1764 |
MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */ |
1765 |
MIPS_SYS(sys_sched_getscheduler, 1)
|
1766 |
MIPS_SYS(sys_sched_yield , 0)
|
1767 |
MIPS_SYS(sys_sched_get_priority_max, 1)
|
1768 |
MIPS_SYS(sys_sched_get_priority_min, 1)
|
1769 |
MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */ |
1770 |
MIPS_SYS(sys_nanosleep, 2)
|
1771 |
MIPS_SYS(sys_mremap , 4)
|
1772 |
MIPS_SYS(sys_accept , 3)
|
1773 |
MIPS_SYS(sys_bind , 3)
|
1774 |
MIPS_SYS(sys_connect , 3) /* 4170 */ |
1775 |
MIPS_SYS(sys_getpeername , 3)
|
1776 |
MIPS_SYS(sys_getsockname , 3)
|
1777 |
MIPS_SYS(sys_getsockopt , 5)
|
1778 |
MIPS_SYS(sys_listen , 2)
|
1779 |
MIPS_SYS(sys_recv , 4) /* 4175 */ |
1780 |
MIPS_SYS(sys_recvfrom , 6)
|
1781 |
MIPS_SYS(sys_recvmsg , 3)
|
1782 |
MIPS_SYS(sys_send , 4)
|
1783 |
MIPS_SYS(sys_sendmsg , 3)
|
1784 |
MIPS_SYS(sys_sendto , 6) /* 4180 */ |
1785 |
MIPS_SYS(sys_setsockopt , 5)
|
1786 |
MIPS_SYS(sys_shutdown , 2)
|
1787 |
MIPS_SYS(sys_socket , 3)
|
1788 |
MIPS_SYS(sys_socketpair , 4)
|
1789 |
MIPS_SYS(sys_setresuid , 3) /* 4185 */ |
1790 |
MIPS_SYS(sys_getresuid , 3)
|
1791 |
MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */ |
1792 |
MIPS_SYS(sys_poll , 3)
|
1793 |
MIPS_SYS(sys_nfsservctl , 3)
|
1794 |
MIPS_SYS(sys_setresgid , 3) /* 4190 */ |
1795 |
MIPS_SYS(sys_getresgid , 3)
|
1796 |
MIPS_SYS(sys_prctl , 5)
|
1797 |
MIPS_SYS(sys_rt_sigreturn, 0)
|
1798 |
MIPS_SYS(sys_rt_sigaction, 4)
|
1799 |
MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */ |
1800 |
MIPS_SYS(sys_rt_sigpending, 2)
|
1801 |
MIPS_SYS(sys_rt_sigtimedwait, 4)
|
1802 |
MIPS_SYS(sys_rt_sigqueueinfo, 3)
|
1803 |
MIPS_SYS(sys_rt_sigsuspend, 0)
|
1804 |
MIPS_SYS(sys_pread64 , 6) /* 4200 */ |
1805 |
MIPS_SYS(sys_pwrite64 , 6)
|
1806 |
MIPS_SYS(sys_chown , 3)
|
1807 |
MIPS_SYS(sys_getcwd , 2)
|
1808 |
MIPS_SYS(sys_capget , 2)
|
1809 |
MIPS_SYS(sys_capset , 2) /* 4205 */ |
1810 |
MIPS_SYS(sys_sigaltstack , 0)
|
1811 |
MIPS_SYS(sys_sendfile , 4)
|
1812 |
MIPS_SYS(sys_ni_syscall , 0)
|
1813 |
MIPS_SYS(sys_ni_syscall , 0)
|
1814 |
MIPS_SYS(sys_mmap2 , 6) /* 4210 */ |
1815 |
MIPS_SYS(sys_truncate64 , 4)
|
1816 |
MIPS_SYS(sys_ftruncate64 , 4)
|
1817 |
MIPS_SYS(sys_stat64 , 2)
|
1818 |
MIPS_SYS(sys_lstat64 , 2)
|
1819 |
MIPS_SYS(sys_fstat64 , 2) /* 4215 */ |
1820 |
MIPS_SYS(sys_pivot_root , 2)
|
1821 |
MIPS_SYS(sys_mincore , 3)
|
1822 |
MIPS_SYS(sys_madvise , 3)
|
1823 |
MIPS_SYS(sys_getdents64 , 3)
|
1824 |
MIPS_SYS(sys_fcntl64 , 3) /* 4220 */ |
1825 |
MIPS_SYS(sys_ni_syscall , 0)
|
1826 |
MIPS_SYS(sys_gettid , 0)
|
1827 |
MIPS_SYS(sys_readahead , 5)
|
1828 |
MIPS_SYS(sys_setxattr , 5)
|
1829 |
MIPS_SYS(sys_lsetxattr , 5) /* 4225 */ |
1830 |
MIPS_SYS(sys_fsetxattr , 5)
|
1831 |
MIPS_SYS(sys_getxattr , 4)
|
1832 |
MIPS_SYS(sys_lgetxattr , 4)
|
1833 |
MIPS_SYS(sys_fgetxattr , 4)
|
1834 |
MIPS_SYS(sys_listxattr , 3) /* 4230 */ |
1835 |
MIPS_SYS(sys_llistxattr , 3)
|
1836 |
MIPS_SYS(sys_flistxattr , 3)
|
1837 |
MIPS_SYS(sys_removexattr , 2)
|
1838 |
MIPS_SYS(sys_lremovexattr, 2)
|
1839 |
MIPS_SYS(sys_fremovexattr, 2) /* 4235 */ |
1840 |
MIPS_SYS(sys_tkill , 2)
|
1841 |
MIPS_SYS(sys_sendfile64 , 5)
|
1842 |
MIPS_SYS(sys_futex , 2)
|
1843 |
MIPS_SYS(sys_sched_setaffinity, 3)
|
1844 |
MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */ |
1845 |
MIPS_SYS(sys_io_setup , 2)
|
1846 |
MIPS_SYS(sys_io_destroy , 1)
|
1847 |
MIPS_SYS(sys_io_getevents, 5)
|
1848 |
MIPS_SYS(sys_io_submit , 3)
|
1849 |
MIPS_SYS(sys_io_cancel , 3) /* 4245 */ |
1850 |
MIPS_SYS(sys_exit_group , 1)
|
1851 |
MIPS_SYS(sys_lookup_dcookie, 3)
|
1852 |
MIPS_SYS(sys_epoll_create, 1)
|
1853 |
MIPS_SYS(sys_epoll_ctl , 4)
|
1854 |
MIPS_SYS(sys_epoll_wait , 3) /* 4250 */ |
1855 |
MIPS_SYS(sys_remap_file_pages, 5)
|
1856 |
MIPS_SYS(sys_set_tid_address, 1)
|
1857 |
MIPS_SYS(sys_restart_syscall, 0)
|
1858 |
MIPS_SYS(sys_fadvise64_64, 7)
|
1859 |
MIPS_SYS(sys_statfs64 , 3) /* 4255 */ |
1860 |
MIPS_SYS(sys_fstatfs64 , 2)
|
1861 |
MIPS_SYS(sys_timer_create, 3)
|
1862 |
MIPS_SYS(sys_timer_settime, 4)
|
1863 |
MIPS_SYS(sys_timer_gettime, 2)
|
1864 |
MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */ |
1865 |
MIPS_SYS(sys_timer_delete, 1)
|
1866 |
MIPS_SYS(sys_clock_settime, 2)
|
1867 |
MIPS_SYS(sys_clock_gettime, 2)
|
1868 |
MIPS_SYS(sys_clock_getres, 2)
|
1869 |
MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */ |
1870 |
MIPS_SYS(sys_tgkill , 3)
|
1871 |
MIPS_SYS(sys_utimes , 2)
|
1872 |
MIPS_SYS(sys_mbind , 4)
|
1873 |
MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */ |
1874 |
MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */ |
1875 |
MIPS_SYS(sys_mq_open , 4)
|
1876 |
MIPS_SYS(sys_mq_unlink , 1)
|
1877 |
MIPS_SYS(sys_mq_timedsend, 5)
|
1878 |
MIPS_SYS(sys_mq_timedreceive, 5)
|
1879 |
MIPS_SYS(sys_mq_notify , 2) /* 4275 */ |
1880 |
MIPS_SYS(sys_mq_getsetattr, 3)
|
1881 |
MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */ |
1882 |
MIPS_SYS(sys_waitid , 4)
|
1883 |
MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */ |
1884 |
MIPS_SYS(sys_add_key , 5)
|
1885 |
MIPS_SYS(sys_request_key, 4)
|
1886 |
MIPS_SYS(sys_keyctl , 5)
|
1887 |
MIPS_SYS(sys_set_thread_area, 1)
|
1888 |
MIPS_SYS(sys_inotify_init, 0)
|
1889 |
MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */ |
1890 |
MIPS_SYS(sys_inotify_rm_watch, 2)
|
1891 |
MIPS_SYS(sys_migrate_pages, 4)
|
1892 |
MIPS_SYS(sys_openat, 4)
|
1893 |
MIPS_SYS(sys_mkdirat, 3)
|
1894 |
MIPS_SYS(sys_mknodat, 4) /* 4290 */ |
1895 |
MIPS_SYS(sys_fchownat, 5)
|
1896 |
MIPS_SYS(sys_futimesat, 3)
|
1897 |
MIPS_SYS(sys_fstatat64, 4)
|
1898 |
MIPS_SYS(sys_unlinkat, 3)
|
1899 |
MIPS_SYS(sys_renameat, 4) /* 4295 */ |
1900 |
MIPS_SYS(sys_linkat, 5)
|
1901 |
MIPS_SYS(sys_symlinkat, 3)
|
1902 |
MIPS_SYS(sys_readlinkat, 4)
|
1903 |
MIPS_SYS(sys_fchmodat, 3)
|
1904 |
MIPS_SYS(sys_faccessat, 3) /* 4300 */ |
1905 |
MIPS_SYS(sys_pselect6, 6)
|
1906 |
MIPS_SYS(sys_ppoll, 5)
|
1907 |
MIPS_SYS(sys_unshare, 1)
|
1908 |
MIPS_SYS(sys_splice, 4)
|
1909 |
MIPS_SYS(sys_sync_file_range, 7) /* 4305 */ |
1910 |
MIPS_SYS(sys_tee, 4)
|
1911 |
MIPS_SYS(sys_vmsplice, 4)
|
1912 |
MIPS_SYS(sys_move_pages, 6)
|
1913 |
MIPS_SYS(sys_set_robust_list, 2)
|
1914 |
MIPS_SYS(sys_get_robust_list, 3) /* 4310 */ |
1915 |
MIPS_SYS(sys_kexec_load, 4)
|
1916 |
MIPS_SYS(sys_getcpu, 3)
|
1917 |
MIPS_SYS(sys_epoll_pwait, 6)
|
1918 |
MIPS_SYS(sys_ioprio_set, 3)
|
1919 |
MIPS_SYS(sys_ioprio_get, 2)
|
1920 |
}; |
1921 |
|
1922 |
#undef MIPS_SYS
|
1923 |
|
1924 |
static int do_store_exclusive(CPUMIPSState *env) |
1925 |
{ |
1926 |
target_ulong addr; |
1927 |
target_ulong page_addr; |
1928 |
target_ulong val; |
1929 |
int flags;
|
1930 |
int segv = 0; |
1931 |
int reg;
|
1932 |
int d;
|
1933 |
|
1934 |
addr = env->lladdr; |
1935 |
page_addr = addr & TARGET_PAGE_MASK; |
1936 |
start_exclusive(); |
1937 |
mmap_lock(); |
1938 |
flags = page_get_flags(page_addr); |
1939 |
if ((flags & PAGE_READ) == 0) { |
1940 |
segv = 1;
|
1941 |
} else {
|
1942 |
reg = env->llreg & 0x1f;
|
1943 |
d = (env->llreg & 0x20) != 0; |
1944 |
if (d) {
|
1945 |
segv = get_user_s64(val, addr); |
1946 |
} else {
|
1947 |
segv = get_user_s32(val, addr); |
1948 |
} |
1949 |
if (!segv) {
|
1950 |
if (val != env->llval) {
|
1951 |
env->active_tc.gpr[reg] = 0;
|
1952 |
} else {
|
1953 |
if (d) {
|
1954 |
segv = put_user_u64(env->llnewval, addr); |
1955 |
} else {
|
1956 |
segv = put_user_u32(env->llnewval, addr); |
1957 |
} |
1958 |
if (!segv) {
|
1959 |
env->active_tc.gpr[reg] = 1;
|
1960 |
} |
1961 |
} |
1962 |
} |
1963 |
} |
1964 |
env->lladdr = -1;
|
1965 |
if (!segv) {
|
1966 |
env->active_tc.PC += 4;
|
1967 |
} |
1968 |
mmap_unlock(); |
1969 |
end_exclusive(); |
1970 |
return segv;
|
1971 |
} |
1972 |
|
1973 |
void cpu_loop(CPUMIPSState *env)
|
1974 |
{ |
1975 |
target_siginfo_t info; |
1976 |
int trapnr, ret;
|
1977 |
unsigned int syscall_num; |
1978 |
|
1979 |
for(;;) {
|
1980 |
cpu_exec_start(env); |
1981 |
trapnr = cpu_mips_exec(env); |
1982 |
cpu_exec_end(env); |
1983 |
switch(trapnr) {
|
1984 |
case EXCP_SYSCALL:
|
1985 |
syscall_num = env->active_tc.gpr[2] - 4000; |
1986 |
env->active_tc.PC += 4;
|
1987 |
if (syscall_num >= sizeof(mips_syscall_args)) { |
1988 |
ret = -ENOSYS; |
1989 |
} else {
|
1990 |
int nb_args;
|
1991 |
abi_ulong sp_reg; |
1992 |
abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0; |
1993 |
|
1994 |
nb_args = mips_syscall_args[syscall_num]; |
1995 |
sp_reg = env->active_tc.gpr[29];
|
1996 |
switch (nb_args) {
|
1997 |
/* these arguments are taken from the stack */
|
1998 |
/* FIXME - what to do if get_user() fails? */
|
1999 |
case 8: get_user_ual(arg8, sp_reg + 28); |
2000 |
case 7: get_user_ual(arg7, sp_reg + 24); |
2001 |
case 6: get_user_ual(arg6, sp_reg + 20); |
2002 |
case 5: get_user_ual(arg5, sp_reg + 16); |
2003 |
default:
|
2004 |
break;
|
2005 |
} |
2006 |
ret = do_syscall(env, env->active_tc.gpr[2],
|
2007 |
env->active_tc.gpr[4],
|
2008 |
env->active_tc.gpr[5],
|
2009 |
env->active_tc.gpr[6],
|
2010 |
env->active_tc.gpr[7],
|
2011 |
arg5, arg6/*, arg7, arg8*/);
|
2012 |
} |
2013 |
if (ret == -TARGET_QEMU_ESIGRETURN) {
|
2014 |
/* Returning from a successful sigreturn syscall.
|
2015 |
Avoid clobbering register state. */
|
2016 |
break;
|
2017 |
} |
2018 |
if ((unsigned int)ret >= (unsigned int)(-1133)) { |
2019 |
env->active_tc.gpr[7] = 1; /* error flag */ |
2020 |
ret = -ret; |
2021 |
} else {
|
2022 |
env->active_tc.gpr[7] = 0; /* error flag */ |
2023 |
} |
2024 |
env->active_tc.gpr[2] = ret;
|
2025 |
break;
|
2026 |
case EXCP_TLBL:
|
2027 |
case EXCP_TLBS:
|
2028 |
info.si_signo = TARGET_SIGSEGV; |
2029 |
info.si_errno = 0;
|
2030 |
/* XXX: check env->error_code */
|
2031 |
info.si_code = TARGET_SEGV_MAPERR; |
2032 |
info._sifields._sigfault._addr = env->CP0_BadVAddr; |
2033 |
queue_signal(env, info.si_signo, &info); |
2034 |
break;
|
2035 |
case EXCP_CpU:
|
2036 |
case EXCP_RI:
|
2037 |
info.si_signo = TARGET_SIGILL; |
2038 |
info.si_errno = 0;
|
2039 |
info.si_code = 0;
|
2040 |
queue_signal(env, info.si_signo, &info); |
2041 |
break;
|
2042 |
case EXCP_INTERRUPT:
|
2043 |
/* just indicate that signals should be handled asap */
|
2044 |
break;
|
2045 |
case EXCP_DEBUG:
|
2046 |
{ |
2047 |
int sig;
|
2048 |
|
2049 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
2050 |
if (sig)
|
2051 |
{ |
2052 |
info.si_signo = sig; |
2053 |
info.si_errno = 0;
|
2054 |
info.si_code = TARGET_TRAP_BRKPT; |
2055 |
queue_signal(env, info.si_signo, &info); |
2056 |
} |
2057 |
} |
2058 |
break;
|
2059 |
case EXCP_SC:
|
2060 |
if (do_store_exclusive(env)) {
|
2061 |
info.si_signo = TARGET_SIGSEGV; |
2062 |
info.si_errno = 0;
|
2063 |
info.si_code = TARGET_SEGV_MAPERR; |
2064 |
info._sifields._sigfault._addr = env->active_tc.PC; |
2065 |
queue_signal(env, info.si_signo, &info); |
2066 |
} |
2067 |
break;
|
2068 |
default:
|
2069 |
// error:
|
2070 |
fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
|
2071 |
trapnr); |
2072 |
cpu_dump_state(env, stderr, fprintf, 0);
|
2073 |
abort(); |
2074 |
} |
2075 |
process_pending_signals(env); |
2076 |
} |
2077 |
} |
2078 |
#endif
|
2079 |
|
2080 |
#ifdef TARGET_SH4
|
2081 |
void cpu_loop (CPUState *env)
|
2082 |
{ |
2083 |
int trapnr, ret;
|
2084 |
target_siginfo_t info; |
2085 |
|
2086 |
while (1) { |
2087 |
trapnr = cpu_sh4_exec (env); |
2088 |
|
2089 |
switch (trapnr) {
|
2090 |
case 0x160: |
2091 |
env->pc += 2;
|
2092 |
ret = do_syscall(env, |
2093 |
env->gregs[3],
|
2094 |
env->gregs[4],
|
2095 |
env->gregs[5],
|
2096 |
env->gregs[6],
|
2097 |
env->gregs[7],
|
2098 |
env->gregs[0],
|
2099 |
env->gregs[1]);
|
2100 |
env->gregs[0] = ret;
|
2101 |
break;
|
2102 |
case EXCP_INTERRUPT:
|
2103 |
/* just indicate that signals should be handled asap */
|
2104 |
break;
|
2105 |
case EXCP_DEBUG:
|
2106 |
{ |
2107 |
int sig;
|
2108 |
|
2109 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
2110 |
if (sig)
|
2111 |
{ |
2112 |
info.si_signo = sig; |
2113 |
info.si_errno = 0;
|
2114 |
info.si_code = TARGET_TRAP_BRKPT; |
2115 |
queue_signal(env, info.si_signo, &info); |
2116 |
} |
2117 |
} |
2118 |
break;
|
2119 |
case 0xa0: |
2120 |
case 0xc0: |
2121 |
info.si_signo = SIGSEGV; |
2122 |
info.si_errno = 0;
|
2123 |
info.si_code = TARGET_SEGV_MAPERR; |
2124 |
info._sifields._sigfault._addr = env->tea; |
2125 |
queue_signal(env, info.si_signo, &info); |
2126 |
break;
|
2127 |
|
2128 |
default:
|
2129 |
printf ("Unhandled trap: 0x%x\n", trapnr);
|
2130 |
cpu_dump_state(env, stderr, fprintf, 0);
|
2131 |
exit (1);
|
2132 |
} |
2133 |
process_pending_signals (env); |
2134 |
} |
2135 |
} |
2136 |
#endif
|
2137 |
|
2138 |
#ifdef TARGET_CRIS
|
2139 |
void cpu_loop (CPUState *env)
|
2140 |
{ |
2141 |
int trapnr, ret;
|
2142 |
target_siginfo_t info; |
2143 |
|
2144 |
while (1) { |
2145 |
trapnr = cpu_cris_exec (env); |
2146 |
switch (trapnr) {
|
2147 |
case 0xaa: |
2148 |
{ |
2149 |
info.si_signo = SIGSEGV; |
2150 |
info.si_errno = 0;
|
2151 |
/* XXX: check env->error_code */
|
2152 |
info.si_code = TARGET_SEGV_MAPERR; |
2153 |
info._sifields._sigfault._addr = env->pregs[PR_EDA]; |
2154 |
queue_signal(env, info.si_signo, &info); |
2155 |
} |
2156 |
break;
|
2157 |
case EXCP_INTERRUPT:
|
2158 |
/* just indicate that signals should be handled asap */
|
2159 |
break;
|
2160 |
case EXCP_BREAK:
|
2161 |
ret = do_syscall(env, |
2162 |
env->regs[9],
|
2163 |
env->regs[10],
|
2164 |
env->regs[11],
|
2165 |
env->regs[12],
|
2166 |
env->regs[13],
|
2167 |
env->pregs[7],
|
2168 |
env->pregs[11]);
|
2169 |
env->regs[10] = ret;
|
2170 |
break;
|
2171 |
case EXCP_DEBUG:
|
2172 |
{ |
2173 |
int sig;
|
2174 |
|
2175 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
2176 |
if (sig)
|
2177 |
{ |
2178 |
info.si_signo = sig; |
2179 |
info.si_errno = 0;
|
2180 |
info.si_code = TARGET_TRAP_BRKPT; |
2181 |
queue_signal(env, info.si_signo, &info); |
2182 |
} |
2183 |
} |
2184 |
break;
|
2185 |
default:
|
2186 |
printf ("Unhandled trap: 0x%x\n", trapnr);
|
2187 |
cpu_dump_state(env, stderr, fprintf, 0);
|
2188 |
exit (1);
|
2189 |
} |
2190 |
process_pending_signals (env); |
2191 |
} |
2192 |
} |
2193 |
#endif
|
2194 |
|
2195 |
#ifdef TARGET_MICROBLAZE
|
2196 |
void cpu_loop (CPUState *env)
|
2197 |
{ |
2198 |
int trapnr, ret;
|
2199 |
target_siginfo_t info; |
2200 |
|
2201 |
while (1) { |
2202 |
trapnr = cpu_mb_exec (env); |
2203 |
switch (trapnr) {
|
2204 |
case 0xaa: |
2205 |
{ |
2206 |
info.si_signo = SIGSEGV; |
2207 |
info.si_errno = 0;
|
2208 |
/* XXX: check env->error_code */
|
2209 |
info.si_code = TARGET_SEGV_MAPERR; |
2210 |
info._sifields._sigfault._addr = 0;
|
2211 |
queue_signal(env, info.si_signo, &info); |
2212 |
} |
2213 |
break;
|
2214 |
case EXCP_INTERRUPT:
|
2215 |
/* just indicate that signals should be handled asap */
|
2216 |
break;
|
2217 |
case EXCP_BREAK:
|
2218 |
/* Return address is 4 bytes after the call. */
|
2219 |
env->regs[14] += 4; |
2220 |
ret = do_syscall(env, |
2221 |
env->regs[12],
|
2222 |
env->regs[5],
|
2223 |
env->regs[6],
|
2224 |
env->regs[7],
|
2225 |
env->regs[8],
|
2226 |
env->regs[9],
|
2227 |
env->regs[10]);
|
2228 |
env->regs[3] = ret;
|
2229 |
env->sregs[SR_PC] = env->regs[14];
|
2230 |
break;
|
2231 |
case EXCP_DEBUG:
|
2232 |
{ |
2233 |
int sig;
|
2234 |
|
2235 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
2236 |
if (sig)
|
2237 |
{ |
2238 |
info.si_signo = sig; |
2239 |
info.si_errno = 0;
|
2240 |
info.si_code = TARGET_TRAP_BRKPT; |
2241 |
queue_signal(env, info.si_signo, &info); |
2242 |
} |
2243 |
} |
2244 |
break;
|
2245 |
default:
|
2246 |
printf ("Unhandled trap: 0x%x\n", trapnr);
|
2247 |
cpu_dump_state(env, stderr, fprintf, 0);
|
2248 |
exit (1);
|
2249 |
} |
2250 |
process_pending_signals (env); |
2251 |
} |
2252 |
} |
2253 |
#endif
|
2254 |
|
2255 |
#ifdef TARGET_M68K
|
2256 |
|
2257 |
void cpu_loop(CPUM68KState *env)
|
2258 |
{ |
2259 |
int trapnr;
|
2260 |
unsigned int n; |
2261 |
target_siginfo_t info; |
2262 |
TaskState *ts = env->opaque; |
2263 |
|
2264 |
for(;;) {
|
2265 |
trapnr = cpu_m68k_exec(env); |
2266 |
switch(trapnr) {
|
2267 |
case EXCP_ILLEGAL:
|
2268 |
{ |
2269 |
if (ts->sim_syscalls) {
|
2270 |
uint16_t nr; |
2271 |
nr = lduw(env->pc + 2);
|
2272 |
env->pc += 4;
|
2273 |
do_m68k_simcall(env, nr); |
2274 |
} else {
|
2275 |
goto do_sigill;
|
2276 |
} |
2277 |
} |
2278 |
break;
|
2279 |
case EXCP_HALT_INSN:
|
2280 |
/* Semihosing syscall. */
|
2281 |
env->pc += 4;
|
2282 |
do_m68k_semihosting(env, env->dregs[0]);
|
2283 |
break;
|
2284 |
case EXCP_LINEA:
|
2285 |
case EXCP_LINEF:
|
2286 |
case EXCP_UNSUPPORTED:
|
2287 |
do_sigill:
|
2288 |
info.si_signo = SIGILL; |
2289 |
info.si_errno = 0;
|
2290 |
info.si_code = TARGET_ILL_ILLOPN; |
2291 |
info._sifields._sigfault._addr = env->pc; |
2292 |
queue_signal(env, info.si_signo, &info); |
2293 |
break;
|
2294 |
case EXCP_TRAP0:
|
2295 |
{ |
2296 |
ts->sim_syscalls = 0;
|
2297 |
n = env->dregs[0];
|
2298 |
env->pc += 2;
|
2299 |
env->dregs[0] = do_syscall(env,
|
2300 |
n, |
2301 |
env->dregs[1],
|
2302 |
env->dregs[2],
|
2303 |
env->dregs[3],
|
2304 |
env->dregs[4],
|
2305 |
env->dregs[5],
|
2306 |
env->aregs[0]);
|
2307 |
} |
2308 |
break;
|
2309 |
case EXCP_INTERRUPT:
|
2310 |
/* just indicate that signals should be handled asap */
|
2311 |
break;
|
2312 |
case EXCP_ACCESS:
|
2313 |
{ |
2314 |
info.si_signo = SIGSEGV; |
2315 |
info.si_errno = 0;
|
2316 |
/* XXX: check env->error_code */
|
2317 |
info.si_code = TARGET_SEGV_MAPERR; |
2318 |
info._sifields._sigfault._addr = env->mmu.ar; |
2319 |
queue_signal(env, info.si_signo, &info); |
2320 |
} |
2321 |
break;
|
2322 |
case EXCP_DEBUG:
|
2323 |
{ |
2324 |
int sig;
|
2325 |
|
2326 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
2327 |
if (sig)
|
2328 |
{ |
2329 |
info.si_signo = sig; |
2330 |
info.si_errno = 0;
|
2331 |
info.si_code = TARGET_TRAP_BRKPT; |
2332 |
queue_signal(env, info.si_signo, &info); |
2333 |
} |
2334 |
} |
2335 |
break;
|
2336 |
default:
|
2337 |
fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
|
2338 |
trapnr); |
2339 |
cpu_dump_state(env, stderr, fprintf, 0);
|
2340 |
abort(); |
2341 |
} |
2342 |
process_pending_signals(env); |
2343 |
} |
2344 |
} |
2345 |
#endif /* TARGET_M68K */ |
2346 |
|
2347 |
#ifdef TARGET_ALPHA
|
2348 |
void cpu_loop (CPUState *env)
|
2349 |
{ |
2350 |
int trapnr;
|
2351 |
target_siginfo_t info; |
2352 |
|
2353 |
while (1) { |
2354 |
trapnr = cpu_alpha_exec (env); |
2355 |
|
2356 |
switch (trapnr) {
|
2357 |
case EXCP_RESET:
|
2358 |
fprintf(stderr, "Reset requested. Exit\n");
|
2359 |
exit(1);
|
2360 |
break;
|
2361 |
case EXCP_MCHK:
|
2362 |
fprintf(stderr, "Machine check exception. Exit\n");
|
2363 |
exit(1);
|
2364 |
break;
|
2365 |
case EXCP_ARITH:
|
2366 |
fprintf(stderr, "Arithmetic trap.\n");
|
2367 |
exit(1);
|
2368 |
break;
|
2369 |
case EXCP_HW_INTERRUPT:
|
2370 |
fprintf(stderr, "External interrupt. Exit\n");
|
2371 |
exit(1);
|
2372 |
break;
|
2373 |
case EXCP_DFAULT:
|
2374 |
fprintf(stderr, "MMU data fault\n");
|
2375 |
exit(1);
|
2376 |
break;
|
2377 |
case EXCP_DTB_MISS_PAL:
|
2378 |
fprintf(stderr, "MMU data TLB miss in PALcode\n");
|
2379 |
exit(1);
|
2380 |
break;
|
2381 |
case EXCP_ITB_MISS:
|
2382 |
fprintf(stderr, "MMU instruction TLB miss\n");
|
2383 |
exit(1);
|
2384 |
break;
|
2385 |
case EXCP_ITB_ACV:
|
2386 |
fprintf(stderr, "MMU instruction access violation\n");
|
2387 |
exit(1);
|
2388 |
break;
|
2389 |
case EXCP_DTB_MISS_NATIVE:
|
2390 |
fprintf(stderr, "MMU data TLB miss\n");
|
2391 |
exit(1);
|
2392 |
break;
|
2393 |
case EXCP_UNALIGN:
|
2394 |
fprintf(stderr, "Unaligned access\n");
|
2395 |
exit(1);
|
2396 |
break;
|
2397 |
case EXCP_OPCDEC:
|
2398 |
fprintf(stderr, "Invalid instruction\n");
|
2399 |
exit(1);
|
2400 |
break;
|
2401 |
case EXCP_FEN:
|
2402 |
fprintf(stderr, "Floating-point not allowed\n");
|
2403 |
exit(1);
|
2404 |
break;
|
2405 |
case EXCP_CALL_PAL ... (EXCP_CALL_PALP - 1): |
2406 |
call_pal(env, (trapnr >> 6) | 0x80); |
2407 |
break;
|
2408 |
case EXCP_CALL_PALP ... (EXCP_CALL_PALE - 1): |
2409 |
fprintf(stderr, "Privileged call to PALcode\n");
|
2410 |
exit(1);
|
2411 |
break;
|
2412 |
case EXCP_DEBUG:
|
2413 |
{ |
2414 |
int sig;
|
2415 |
|
2416 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
2417 |
if (sig)
|
2418 |
{ |
2419 |
info.si_signo = sig; |
2420 |
info.si_errno = 0;
|
2421 |
info.si_code = TARGET_TRAP_BRKPT; |
2422 |
queue_signal(env, info.si_signo, &info); |
2423 |
} |
2424 |
} |
2425 |
break;
|
2426 |
default:
|
2427 |
printf ("Unhandled trap: 0x%x\n", trapnr);
|
2428 |
cpu_dump_state(env, stderr, fprintf, 0);
|
2429 |
exit (1);
|
2430 |
} |
2431 |
process_pending_signals (env); |
2432 |
} |
2433 |
} |
2434 |
#endif /* TARGET_ALPHA */ |
2435 |
|
2436 |
static void usage(void) |
2437 |
{ |
2438 |
printf("qemu-" TARGET_ARCH " version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n" |
2439 |
"usage: qemu-" TARGET_ARCH " [options] program [arguments...]\n" |
2440 |
"Linux CPU emulator (compiled for %s emulation)\n"
|
2441 |
"\n"
|
2442 |
"Standard options:\n"
|
2443 |
"-h print this help\n"
|
2444 |
"-g port wait gdb connection to port\n"
|
2445 |
"-L path set the elf interpreter prefix (default=%s)\n"
|
2446 |
"-s size set the stack size in bytes (default=%ld)\n"
|
2447 |
"-cpu model select CPU (-cpu ? for list)\n"
|
2448 |
"-drop-ld-preload drop LD_PRELOAD for target process\n"
|
2449 |
"-E var=value sets/modifies targets environment variable(s)\n"
|
2450 |
"-U var unsets targets environment variable(s)\n"
|
2451 |
"-0 argv0 forces target process argv[0] to be argv0\n"
|
2452 |
#if defined(CONFIG_USE_GUEST_BASE)
|
2453 |
"-B address set guest_base address to address\n"
|
2454 |
#endif
|
2455 |
"\n"
|
2456 |
"Debug options:\n"
|
2457 |
"-d options activate log (logfile=%s)\n"
|
2458 |
"-p pagesize set the host page size to 'pagesize'\n"
|
2459 |
"-singlestep always run in singlestep mode\n"
|
2460 |
"-strace log system calls\n"
|
2461 |
"\n"
|
2462 |
"Environment variables:\n"
|
2463 |
"QEMU_STRACE Print system calls and arguments similar to the\n"
|
2464 |
" 'strace' program. Enable by setting to any value.\n"
|
2465 |
"You can use -E and -U options to set/unset environment variables\n"
|
2466 |
"for target process. It is possible to provide several variables\n"
|
2467 |
"by repeating the option. For example:\n"
|
2468 |
" -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n"
|
2469 |
"Note that if you provide several changes to single variable\n"
|
2470 |
"last change will stay in effect.\n"
|
2471 |
, |
2472 |
TARGET_ARCH, |
2473 |
interp_prefix, |
2474 |
x86_stack_size, |
2475 |
DEBUG_LOGFILE); |
2476 |
exit(1);
|
2477 |
} |
2478 |
|
2479 |
THREAD CPUState *thread_env; |
2480 |
|
2481 |
void task_settid(TaskState *ts)
|
2482 |
{ |
2483 |
if (ts->ts_tid == 0) { |
2484 |
#ifdef CONFIG_USE_NPTL
|
2485 |
ts->ts_tid = (pid_t)syscall(SYS_gettid); |
2486 |
#else
|
2487 |
/* when no threads are used, tid becomes pid */
|
2488 |
ts->ts_tid = getpid(); |
2489 |
#endif
|
2490 |
} |
2491 |
} |
2492 |
|
2493 |
void stop_all_tasks(void) |
2494 |
{ |
2495 |
/*
|
2496 |
* We trust that when using NPTL, start_exclusive()
|
2497 |
* handles thread stopping correctly.
|
2498 |
*/
|
2499 |
start_exclusive(); |
2500 |
} |
2501 |
|
2502 |
/* Assumes contents are already zeroed. */
|
2503 |
void init_task_state(TaskState *ts)
|
2504 |
{ |
2505 |
int i;
|
2506 |
|
2507 |
ts->used = 1;
|
2508 |
ts->first_free = ts->sigqueue_table; |
2509 |
for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) { |
2510 |
ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1];
|
2511 |
} |
2512 |
ts->sigqueue_table[i].next = NULL;
|
2513 |
} |
2514 |
|
2515 |
int main(int argc, char **argv, char **envp) |
2516 |
{ |
2517 |
const char *filename; |
2518 |
const char *cpu_model; |
2519 |
struct target_pt_regs regs1, *regs = ®s1;
|
2520 |
struct image_info info1, *info = &info1;
|
2521 |
struct linux_binprm bprm;
|
2522 |
TaskState ts1, *ts = &ts1; |
2523 |
CPUState *env; |
2524 |
int optind;
|
2525 |
const char *r; |
2526 |
int gdbstub_port = 0; |
2527 |
char **target_environ, **wrk;
|
2528 |
char **target_argv;
|
2529 |
int target_argc;
|
2530 |
envlist_t *envlist = NULL;
|
2531 |
const char *argv0 = NULL; |
2532 |
int i;
|
2533 |
int ret;
|
2534 |
|
2535 |
if (argc <= 1) |
2536 |
usage(); |
2537 |
|
2538 |
qemu_cache_utils_init(envp); |
2539 |
|
2540 |
/* init debug */
|
2541 |
cpu_set_log_filename(DEBUG_LOGFILE); |
2542 |
|
2543 |
if ((envlist = envlist_create()) == NULL) { |
2544 |
(void) fprintf(stderr, "Unable to allocate envlist\n"); |
2545 |
exit(1);
|
2546 |
} |
2547 |
|
2548 |
/* add current environment into the list */
|
2549 |
for (wrk = environ; *wrk != NULL; wrk++) { |
2550 |
(void) envlist_setenv(envlist, *wrk);
|
2551 |
} |
2552 |
|
2553 |
cpu_model = NULL;
|
2554 |
optind = 1;
|
2555 |
for(;;) {
|
2556 |
if (optind >= argc)
|
2557 |
break;
|
2558 |
r = argv[optind]; |
2559 |
if (r[0] != '-') |
2560 |
break;
|
2561 |
optind++; |
2562 |
r++; |
2563 |
if (!strcmp(r, "-")) { |
2564 |
break;
|
2565 |
} else if (!strcmp(r, "d")) { |
2566 |
int mask;
|
2567 |
const CPULogItem *item;
|
2568 |
|
2569 |
if (optind >= argc)
|
2570 |
break;
|
2571 |
|
2572 |
r = argv[optind++]; |
2573 |
mask = cpu_str_to_log_mask(r); |
2574 |
if (!mask) {
|
2575 |
printf("Log items (comma separated):\n");
|
2576 |
for(item = cpu_log_items; item->mask != 0; item++) { |
2577 |
printf("%-10s %s\n", item->name, item->help);
|
2578 |
} |
2579 |
exit(1);
|
2580 |
} |
2581 |
cpu_set_log(mask); |
2582 |
} else if (!strcmp(r, "E")) { |
2583 |
r = argv[optind++]; |
2584 |
if (envlist_setenv(envlist, r) != 0) |
2585 |
usage(); |
2586 |
} else if (!strcmp(r, "U")) { |
2587 |
r = argv[optind++]; |
2588 |
if (envlist_unsetenv(envlist, r) != 0) |
2589 |
usage(); |
2590 |
} else if (!strcmp(r, "0")) { |
2591 |
r = argv[optind++]; |
2592 |
argv0 = r; |
2593 |
} else if (!strcmp(r, "s")) { |
2594 |
if (optind >= argc)
|
2595 |
break;
|
2596 |
r = argv[optind++]; |
2597 |
x86_stack_size = strtol(r, (char **)&r, 0); |
2598 |
if (x86_stack_size <= 0) |
2599 |
usage(); |
2600 |
if (*r == 'M') |
2601 |
x86_stack_size *= 1024 * 1024; |
2602 |
else if (*r == 'k' || *r == 'K') |
2603 |
x86_stack_size *= 1024;
|
2604 |
} else if (!strcmp(r, "L")) { |
2605 |
interp_prefix = argv[optind++]; |
2606 |
} else if (!strcmp(r, "p")) { |
2607 |
if (optind >= argc)
|
2608 |
break;
|
2609 |
qemu_host_page_size = atoi(argv[optind++]); |
2610 |
if (qemu_host_page_size == 0 || |
2611 |
(qemu_host_page_size & (qemu_host_page_size - 1)) != 0) { |
2612 |
fprintf(stderr, "page size must be a power of two\n");
|
2613 |
exit(1);
|
2614 |
} |
2615 |
} else if (!strcmp(r, "g")) { |
2616 |
if (optind >= argc)
|
2617 |
break;
|
2618 |
gdbstub_port = atoi(argv[optind++]); |
2619 |
} else if (!strcmp(r, "r")) { |
2620 |
qemu_uname_release = argv[optind++]; |
2621 |
} else if (!strcmp(r, "cpu")) { |
2622 |
cpu_model = argv[optind++]; |
2623 |
if (cpu_model == NULL || strcmp(cpu_model, "?") == 0) { |
2624 |
/* XXX: implement xxx_cpu_list for targets that still miss it */
|
2625 |
#if defined(cpu_list)
|
2626 |
cpu_list(stdout, &fprintf); |
2627 |
#endif
|
2628 |
exit(1);
|
2629 |
} |
2630 |
#if defined(CONFIG_USE_GUEST_BASE)
|
2631 |
} else if (!strcmp(r, "B")) { |
2632 |
guest_base = strtol(argv[optind++], NULL, 0); |
2633 |
have_guest_base = 1;
|
2634 |
#endif
|
2635 |
} else if (!strcmp(r, "drop-ld-preload")) { |
2636 |
(void) envlist_unsetenv(envlist, "LD_PRELOAD"); |
2637 |
} else if (!strcmp(r, "singlestep")) { |
2638 |
singlestep = 1;
|
2639 |
} else if (!strcmp(r, "strace")) { |
2640 |
do_strace = 1;
|
2641 |
} else
|
2642 |
{ |
2643 |
usage(); |
2644 |
} |
2645 |
} |
2646 |
if (optind >= argc)
|
2647 |
usage(); |
2648 |
filename = argv[optind]; |
2649 |
exec_path = argv[optind]; |
2650 |
|
2651 |
/* Zero out regs */
|
2652 |
memset(regs, 0, sizeof(struct target_pt_regs)); |
2653 |
|
2654 |
/* Zero out image_info */
|
2655 |
memset(info, 0, sizeof(struct image_info)); |
2656 |
|
2657 |
memset(&bprm, 0, sizeof (bprm)); |
2658 |
|
2659 |
/* Scan interp_prefix dir for replacement files. */
|
2660 |
init_paths(interp_prefix); |
2661 |
|
2662 |
if (cpu_model == NULL) { |
2663 |
#if defined(TARGET_I386)
|
2664 |
#ifdef TARGET_X86_64
|
2665 |
cpu_model = "qemu64";
|
2666 |
#else
|
2667 |
cpu_model = "qemu32";
|
2668 |
#endif
|
2669 |
#elif defined(TARGET_ARM)
|
2670 |
cpu_model = "any";
|
2671 |
#elif defined(TARGET_M68K)
|
2672 |
cpu_model = "any";
|
2673 |
#elif defined(TARGET_SPARC)
|
2674 |
#ifdef TARGET_SPARC64
|
2675 |
cpu_model = "TI UltraSparc II";
|
2676 |
#else
|
2677 |
cpu_model = "Fujitsu MB86904";
|
2678 |
#endif
|
2679 |
#elif defined(TARGET_MIPS)
|
2680 |
#if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64)
|
2681 |
cpu_model = "20Kc";
|
2682 |
#else
|
2683 |
cpu_model = "24Kf";
|
2684 |
#endif
|
2685 |
#elif defined(TARGET_PPC)
|
2686 |
#ifdef TARGET_PPC64
|
2687 |
cpu_model = "970";
|
2688 |
#else
|
2689 |
cpu_model = "750";
|
2690 |
#endif
|
2691 |
#else
|
2692 |
cpu_model = "any";
|
2693 |
#endif
|
2694 |
} |
2695 |
cpu_exec_init_all(0);
|
2696 |
/* NOTE: we need to init the CPU at this stage to get
|
2697 |
qemu_host_page_size */
|
2698 |
env = cpu_init(cpu_model); |
2699 |
if (!env) {
|
2700 |
fprintf(stderr, "Unable to find CPU definition\n");
|
2701 |
exit(1);
|
2702 |
} |
2703 |
#if defined(TARGET_I386) || defined(TARGET_SPARC) || defined(TARGET_PPC)
|
2704 |
cpu_reset(env); |
2705 |
#endif
|
2706 |
|
2707 |
thread_env = env; |
2708 |
|
2709 |
if (getenv("QEMU_STRACE")) { |
2710 |
do_strace = 1;
|
2711 |
} |
2712 |
|
2713 |
target_environ = envlist_to_environ(envlist, NULL);
|
2714 |
envlist_free(envlist); |
2715 |
|
2716 |
#if defined(CONFIG_USE_GUEST_BASE)
|
2717 |
/*
|
2718 |
* Now that page sizes are configured in cpu_init() we can do
|
2719 |
* proper page alignment for guest_base.
|
2720 |
*/
|
2721 |
guest_base = HOST_PAGE_ALIGN(guest_base); |
2722 |
|
2723 |
/*
|
2724 |
* Read in mmap_min_addr kernel parameter. This value is used
|
2725 |
* When loading the ELF image to determine whether guest_base
|
2726 |
* is needed.
|
2727 |
*
|
2728 |
* When user has explicitly set the quest base, we skip this
|
2729 |
* test.
|
2730 |
*/
|
2731 |
if (!have_guest_base) {
|
2732 |
FILE *fp; |
2733 |
|
2734 |
if ((fp = fopen("/proc/sys/vm/mmap_min_addr", "r")) != NULL) { |
2735 |
unsigned long tmp; |
2736 |
if (fscanf(fp, "%lu", &tmp) == 1) { |
2737 |
mmap_min_addr = tmp; |
2738 |
qemu_log("host mmap_min_addr=0x%lx\n", mmap_min_addr);
|
2739 |
} |
2740 |
fclose(fp); |
2741 |
} |
2742 |
} |
2743 |
#endif /* CONFIG_USE_GUEST_BASE */ |
2744 |
|
2745 |
/*
|
2746 |
* Prepare copy of argv vector for target.
|
2747 |
*/
|
2748 |
target_argc = argc - optind; |
2749 |
target_argv = calloc(target_argc + 1, sizeof (char *)); |
2750 |
if (target_argv == NULL) { |
2751 |
(void) fprintf(stderr, "Unable to allocate memory for target_argv\n"); |
2752 |
exit(1);
|
2753 |
} |
2754 |
|
2755 |
/*
|
2756 |
* If argv0 is specified (using '-0' switch) we replace
|
2757 |
* argv[0] pointer with the given one.
|
2758 |
*/
|
2759 |
i = 0;
|
2760 |
if (argv0 != NULL) { |
2761 |
target_argv[i++] = strdup(argv0); |
2762 |
} |
2763 |
for (; i < target_argc; i++) {
|
2764 |
target_argv[i] = strdup(argv[optind + i]); |
2765 |
} |
2766 |
target_argv[target_argc] = NULL;
|
2767 |
|
2768 |
memset(ts, 0, sizeof(TaskState)); |
2769 |
init_task_state(ts); |
2770 |
/* build Task State */
|
2771 |
ts->info = info; |
2772 |
ts->bprm = &bprm; |
2773 |
env->opaque = ts; |
2774 |
task_settid(ts); |
2775 |
|
2776 |
ret = loader_exec(filename, target_argv, target_environ, regs, |
2777 |
info, &bprm); |
2778 |
if (ret != 0) { |
2779 |
printf("Error %d while loading %s\n", ret, filename);
|
2780 |
_exit(1);
|
2781 |
} |
2782 |
|
2783 |
for (i = 0; i < target_argc; i++) { |
2784 |
free(target_argv[i]); |
2785 |
} |
2786 |
free(target_argv); |
2787 |
|
2788 |
for (wrk = target_environ; *wrk; wrk++) {
|
2789 |
free(*wrk); |
2790 |
} |
2791 |
|
2792 |
free(target_environ); |
2793 |
|
2794 |
if (qemu_log_enabled()) {
|
2795 |
#if defined(CONFIG_USE_GUEST_BASE)
|
2796 |
qemu_log("guest_base 0x%lx\n", guest_base);
|
2797 |
#endif
|
2798 |
log_page_dump(); |
2799 |
|
2800 |
qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk); |
2801 |
qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code); |
2802 |
qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n", |
2803 |
info->start_code); |
2804 |
qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n", |
2805 |
info->start_data); |
2806 |
qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data); |
2807 |
qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n", |
2808 |
info->start_stack); |
2809 |
qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk); |
2810 |
qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry); |
2811 |
} |
2812 |
|
2813 |
target_set_brk(info->brk); |
2814 |
syscall_init(); |
2815 |
signal_init(); |
2816 |
|
2817 |
#if defined(TARGET_I386)
|
2818 |
cpu_x86_set_cpl(env, 3);
|
2819 |
|
2820 |
env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
|
2821 |
env->hflags |= HF_PE_MASK; |
2822 |
if (env->cpuid_features & CPUID_SSE) {
|
2823 |
env->cr[4] |= CR4_OSFXSR_MASK;
|
2824 |
env->hflags |= HF_OSFXSR_MASK; |
2825 |
} |
2826 |
#ifndef TARGET_ABI32
|
2827 |
/* enable 64 bit mode if possible */
|
2828 |
if (!(env->cpuid_ext2_features & CPUID_EXT2_LM)) {
|
2829 |
fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n");
|
2830 |
exit(1);
|
2831 |
} |
2832 |
env->cr[4] |= CR4_PAE_MASK;
|
2833 |
env->efer |= MSR_EFER_LMA | MSR_EFER_LME; |
2834 |
env->hflags |= HF_LMA_MASK; |
2835 |
#endif
|
2836 |
|
2837 |
/* flags setup : we activate the IRQs by default as in user mode */
|
2838 |
env->eflags |= IF_MASK; |
2839 |
|
2840 |
/* linux register setup */
|
2841 |
#ifndef TARGET_ABI32
|
2842 |
env->regs[R_EAX] = regs->rax; |
2843 |
env->regs[R_EBX] = regs->rbx; |
2844 |
env->regs[R_ECX] = regs->rcx; |
2845 |
env->regs[R_EDX] = regs->rdx; |
2846 |
env->regs[R_ESI] = regs->rsi; |
2847 |
env->regs[R_EDI] = regs->rdi; |
2848 |
env->regs[R_EBP] = regs->rbp; |
2849 |
env->regs[R_ESP] = regs->rsp; |
2850 |
env->eip = regs->rip; |
2851 |
#else
|
2852 |
env->regs[R_EAX] = regs->eax; |
2853 |
env->regs[R_EBX] = regs->ebx; |
2854 |
env->regs[R_ECX] = regs->ecx; |
2855 |
env->regs[R_EDX] = regs->edx; |
2856 |
env->regs[R_ESI] = regs->esi; |
2857 |
env->regs[R_EDI] = regs->edi; |
2858 |
env->regs[R_EBP] = regs->ebp; |
2859 |
env->regs[R_ESP] = regs->esp; |
2860 |
env->eip = regs->eip; |
2861 |
#endif
|
2862 |
|
2863 |
/* linux interrupt setup */
|
2864 |
#ifndef TARGET_ABI32
|
2865 |
env->idt.limit = 511;
|
2866 |
#else
|
2867 |
env->idt.limit = 255;
|
2868 |
#endif
|
2869 |
env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1), |
2870 |
PROT_READ|PROT_WRITE, |
2871 |
MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); |
2872 |
idt_table = g2h(env->idt.base); |
2873 |
set_idt(0, 0); |
2874 |
set_idt(1, 0); |
2875 |
set_idt(2, 0); |
2876 |
set_idt(3, 3); |
2877 |
set_idt(4, 3); |
2878 |
set_idt(5, 0); |
2879 |
set_idt(6, 0); |
2880 |
set_idt(7, 0); |
2881 |
set_idt(8, 0); |
2882 |
set_idt(9, 0); |
2883 |
set_idt(10, 0); |
2884 |
set_idt(11, 0); |
2885 |
set_idt(12, 0); |
2886 |
set_idt(13, 0); |
2887 |
set_idt(14, 0); |
2888 |
set_idt(15, 0); |
2889 |
set_idt(16, 0); |
2890 |
set_idt(17, 0); |
2891 |
set_idt(18, 0); |
2892 |
set_idt(19, 0); |
2893 |
set_idt(0x80, 3); |
2894 |
|
2895 |
/* linux segment setup */
|
2896 |
{ |
2897 |
uint64_t *gdt_table; |
2898 |
env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES, |
2899 |
PROT_READ|PROT_WRITE, |
2900 |
MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); |
2901 |
env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1; |
2902 |
gdt_table = g2h(env->gdt.base); |
2903 |
#ifdef TARGET_ABI32
|
2904 |
write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff, |
2905 |
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | |
2906 |
(3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); |
2907 |
#else
|
2908 |
/* 64 bit code segment */
|
2909 |
write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff, |
2910 |
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | |
2911 |
DESC_L_MASK | |
2912 |
(3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); |
2913 |
#endif
|
2914 |
write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff, |
2915 |
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | |
2916 |
(3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT)); |
2917 |
} |
2918 |
cpu_x86_load_seg(env, R_CS, __USER_CS); |
2919 |
cpu_x86_load_seg(env, R_SS, __USER_DS); |
2920 |
#ifdef TARGET_ABI32
|
2921 |
cpu_x86_load_seg(env, R_DS, __USER_DS); |
2922 |
cpu_x86_load_seg(env, R_ES, __USER_DS); |
2923 |
cpu_x86_load_seg(env, R_FS, __USER_DS); |
2924 |
cpu_x86_load_seg(env, R_GS, __USER_DS); |
2925 |
/* This hack makes Wine work... */
|
2926 |
env->segs[R_FS].selector = 0;
|
2927 |
#else
|
2928 |
cpu_x86_load_seg(env, R_DS, 0);
|
2929 |
cpu_x86_load_seg(env, R_ES, 0);
|
2930 |
cpu_x86_load_seg(env, R_FS, 0);
|
2931 |
cpu_x86_load_seg(env, R_GS, 0);
|
2932 |
#endif
|
2933 |
#elif defined(TARGET_ARM)
|
2934 |
{ |
2935 |
int i;
|
2936 |
cpsr_write(env, regs->uregs[16], 0xffffffff); |
2937 |
for(i = 0; i < 16; i++) { |
2938 |
env->regs[i] = regs->uregs[i]; |
2939 |
} |
2940 |
} |
2941 |
#elif defined(TARGET_SPARC)
|
2942 |
{ |
2943 |
int i;
|
2944 |
env->pc = regs->pc; |
2945 |
env->npc = regs->npc; |
2946 |
env->y = regs->y; |
2947 |
for(i = 0; i < 8; i++) |
2948 |
env->gregs[i] = regs->u_regs[i]; |
2949 |
for(i = 0; i < 8; i++) |
2950 |
env->regwptr[i] = regs->u_regs[i + 8];
|
2951 |
} |
2952 |
#elif defined(TARGET_PPC)
|
2953 |
{ |
2954 |
int i;
|
2955 |
|
2956 |
#if defined(TARGET_PPC64)
|
2957 |
#if defined(TARGET_ABI32)
|
2958 |
env->msr &= ~((target_ulong)1 << MSR_SF);
|
2959 |
#else
|
2960 |
env->msr |= (target_ulong)1 << MSR_SF;
|
2961 |
#endif
|
2962 |
#endif
|
2963 |
env->nip = regs->nip; |
2964 |
for(i = 0; i < 32; i++) { |
2965 |
env->gpr[i] = regs->gpr[i]; |
2966 |
} |
2967 |
} |
2968 |
#elif defined(TARGET_M68K)
|
2969 |
{ |
2970 |
env->pc = regs->pc; |
2971 |
env->dregs[0] = regs->d0;
|
2972 |
env->dregs[1] = regs->d1;
|
2973 |
env->dregs[2] = regs->d2;
|
2974 |
env->dregs[3] = regs->d3;
|
2975 |
env->dregs[4] = regs->d4;
|
2976 |
env->dregs[5] = regs->d5;
|
2977 |
env->dregs[6] = regs->d6;
|
2978 |
env->dregs[7] = regs->d7;
|
2979 |
env->aregs[0] = regs->a0;
|
2980 |
env->aregs[1] = regs->a1;
|
2981 |
env->aregs[2] = regs->a2;
|
2982 |
env->aregs[3] = regs->a3;
|
2983 |
env->aregs[4] = regs->a4;
|
2984 |
env->aregs[5] = regs->a5;
|
2985 |
env->aregs[6] = regs->a6;
|
2986 |
env->aregs[7] = regs->usp;
|
2987 |
env->sr = regs->sr; |
2988 |
ts->sim_syscalls = 1;
|
2989 |
} |
2990 |
#elif defined(TARGET_MICROBLAZE)
|
2991 |
{ |
2992 |
env->regs[0] = regs->r0;
|
2993 |
env->regs[1] = regs->r1;
|
2994 |
env->regs[2] = regs->r2;
|
2995 |
env->regs[3] = regs->r3;
|
2996 |
env->regs[4] = regs->r4;
|
2997 |
env->regs[5] = regs->r5;
|
2998 |
env->regs[6] = regs->r6;
|
2999 |
env->regs[7] = regs->r7;
|
3000 |
env->regs[8] = regs->r8;
|
3001 |
env->regs[9] = regs->r9;
|
3002 |
env->regs[10] = regs->r10;
|
3003 |
env->regs[11] = regs->r11;
|
3004 |
env->regs[12] = regs->r12;
|
3005 |
env->regs[13] = regs->r13;
|
3006 |
env->regs[14] = regs->r14;
|
3007 |
env->regs[15] = regs->r15;
|
3008 |
env->regs[16] = regs->r16;
|
3009 |
env->regs[17] = regs->r17;
|
3010 |
env->regs[18] = regs->r18;
|
3011 |
env->regs[19] = regs->r19;
|
3012 |
env->regs[20] = regs->r20;
|
3013 |
env->regs[21] = regs->r21;
|
3014 |
env->regs[22] = regs->r22;
|
3015 |
env->regs[23] = regs->r23;
|
3016 |
env->regs[24] = regs->r24;
|
3017 |
env->regs[25] = regs->r25;
|
3018 |
env->regs[26] = regs->r26;
|
3019 |
env->regs[27] = regs->r27;
|
3020 |
env->regs[28] = regs->r28;
|
3021 |
env->regs[29] = regs->r29;
|
3022 |
env->regs[30] = regs->r30;
|
3023 |
env->regs[31] = regs->r31;
|
3024 |
env->sregs[SR_PC] = regs->pc; |
3025 |
} |
3026 |
#elif defined(TARGET_MIPS)
|
3027 |
{ |
3028 |
int i;
|
3029 |
|
3030 |
for(i = 0; i < 32; i++) { |
3031 |
env->active_tc.gpr[i] = regs->regs[i]; |
3032 |
} |
3033 |
env->active_tc.PC = regs->cp0_epc; |
3034 |
} |
3035 |
#elif defined(TARGET_SH4)
|
3036 |
{ |
3037 |
int i;
|
3038 |
|
3039 |
for(i = 0; i < 16; i++) { |
3040 |
env->gregs[i] = regs->regs[i]; |
3041 |
} |
3042 |
env->pc = regs->pc; |
3043 |
} |
3044 |
#elif defined(TARGET_ALPHA)
|
3045 |
{ |
3046 |
int i;
|
3047 |
|
3048 |
for(i = 0; i < 28; i++) { |
3049 |
env->ir[i] = ((abi_ulong *)regs)[i]; |
3050 |
} |
3051 |
env->ipr[IPR_USP] = regs->usp; |
3052 |
env->ir[30] = regs->usp;
|
3053 |
env->pc = regs->pc; |
3054 |
env->unique = regs->unique; |
3055 |
} |
3056 |
#elif defined(TARGET_CRIS)
|
3057 |
{ |
3058 |
env->regs[0] = regs->r0;
|
3059 |
env->regs[1] = regs->r1;
|
3060 |
env->regs[2] = regs->r2;
|
3061 |
env->regs[3] = regs->r3;
|
3062 |
env->regs[4] = regs->r4;
|
3063 |
env->regs[5] = regs->r5;
|
3064 |
env->regs[6] = regs->r6;
|
3065 |
env->regs[7] = regs->r7;
|
3066 |
env->regs[8] = regs->r8;
|
3067 |
env->regs[9] = regs->r9;
|
3068 |
env->regs[10] = regs->r10;
|
3069 |
env->regs[11] = regs->r11;
|
3070 |
env->regs[12] = regs->r12;
|
3071 |
env->regs[13] = regs->r13;
|
3072 |
env->regs[14] = info->start_stack;
|
3073 |
env->regs[15] = regs->acr;
|
3074 |
env->pc = regs->erp; |
3075 |
} |
3076 |
#else
|
3077 |
#error unsupported target CPU
|
3078 |
#endif
|
3079 |
|
3080 |
#if defined(TARGET_ARM) || defined(TARGET_M68K)
|
3081 |
ts->stack_base = info->start_stack; |
3082 |
ts->heap_base = info->brk; |
3083 |
/* This will be filled in on the first SYS_HEAPINFO call. */
|
3084 |
ts->heap_limit = 0;
|
3085 |
#endif
|
3086 |
|
3087 |
if (gdbstub_port) {
|
3088 |
gdbserver_start (gdbstub_port); |
3089 |
gdb_handlesig(env, 0);
|
3090 |
} |
3091 |
cpu_loop(env); |
3092 |
/* never exits */
|
3093 |
return 0; |
3094 |
} |