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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 <sys/resource.h> |
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|
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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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#include "cpu.h" |
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#include "tcg.h" |
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#include "qemu-timer.h" |
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#include "envlist.h" |
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#include "elf.h" |
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|
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#define DEBUG_LOGFILE "/tmp/qemu.log" |
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|
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char *exec_path;
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|
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int singlestep;
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const char *filename; |
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const char *argv0; |
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int gdbstub_port;
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envlist_t *envlist; |
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const char *cpu_model; |
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unsigned long mmap_min_addr; |
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#if defined(CONFIG_USE_GUEST_BASE)
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unsigned long guest_base; |
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int have_guest_base;
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#if (TARGET_LONG_BITS == 32) && (HOST_LONG_BITS == 64) |
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/*
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* When running 32-on-64 we should make sure we can fit all of the possible
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* guest address space into a contiguous chunk of virtual host memory.
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*
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* This way we will never overlap with our own libraries or binaries or stack
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* or anything else that QEMU maps.
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*/
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unsigned long reserved_va = 0xf7000000; |
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#else
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unsigned long reserved_va; |
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#endif
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#endif
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|
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static void usage(void); |
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|
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static const char *interp_prefix = CONFIG_QEMU_INTERP_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 guest_stack_size = 8 * 1024 * 1024UL; |
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|
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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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|
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#if defined(TARGET_I386)
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int cpu_get_pic_interrupt(CPUX86State *env)
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{
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return -1; |
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} |
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#endif
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|
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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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|
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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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|
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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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CPUArchState *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(CPUArchState *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(CPUArchState *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--; |
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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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|
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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(CPUArchState *env) |
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{
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} |
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static inline void cpu_exec_end(CPUArchState *env) |
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{
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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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|
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static inline void end_exclusive(void) |
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{
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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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|
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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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|
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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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|
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|
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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(CPUX86State *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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|
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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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} |
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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; |
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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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} |
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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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|
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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; |
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target_siginfo_t info; |
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|
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for(;;) {
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trapnr = cpu_x86_exec(env); |
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switch(trapnr) {
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case 0x80: |
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/* linux syscall from int $0x80 */
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env->regs[R_EAX] = do_syscall(env, |
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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], |
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0, 0); |
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break;
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#ifndef TARGET_ABI32
|
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case EXCP_SYSCALL:
|
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/* linux syscall from syscall instruction */
|
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env->regs[R_EAX] = do_syscall(env, |
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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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0, 0); |
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env->eip = env->exception_next_eip; |
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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; |
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info.si_errno = 0;
|
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info.si_code = TARGET_SI_KERNEL; |
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info._sifields._sigfault._addr = 0;
|
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queue_signal(env, info.si_signo, &info); |
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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); |
| 358 |
} else
|
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#endif
|
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{
|
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info.si_signo = SIGSEGV; |
| 362 |
info.si_errno = 0;
|
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info.si_code = TARGET_SI_KERNEL; |
| 364 |
info._sifields._sigfault._addr = 0;
|
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queue_signal(env, info.si_signo, &info); |
| 366 |
} |
| 367 |
break;
|
| 368 |
case EXCP0E_PAGE:
|
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info.si_signo = SIGSEGV; |
| 370 |
info.si_errno = 0;
|
| 371 |
if (!(env->error_code & 1)) |
| 372 |
info.si_code = TARGET_SEGV_MAPERR; |
| 373 |
else
|
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info.si_code = TARGET_SEGV_ACCERR; |
| 375 |
info._sifields._sigfault._addr = env->cr[2];
|
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queue_signal(env, info.si_signo, &info); |
| 377 |
break;
|
| 378 |
case EXCP00_DIVZ:
|
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#ifndef TARGET_X86_64
|
| 380 |
if (env->eflags & VM_MASK) {
|
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handle_vm86_trap(env, trapnr); |
| 382 |
} else
|
| 383 |
#endif
|
| 384 |
{
|
| 385 |
/* division by zero */
|
| 386 |
info.si_signo = SIGFPE; |
| 387 |
info.si_errno = 0;
|
| 388 |
info.si_code = TARGET_FPE_INTDIV; |
| 389 |
info._sifields._sigfault._addr = env->eip; |
| 390 |
queue_signal(env, info.si_signo, &info); |
| 391 |
} |
| 392 |
break;
|
| 393 |
case EXCP01_DB:
|
| 394 |
case EXCP03_INT3:
|
| 395 |
#ifndef TARGET_X86_64
|
| 396 |
if (env->eflags & VM_MASK) {
|
| 397 |
handle_vm86_trap(env, trapnr); |
| 398 |
} else
|
| 399 |
#endif
|
| 400 |
{
|
| 401 |
info.si_signo = SIGTRAP; |
| 402 |
info.si_errno = 0;
|
| 403 |
if (trapnr == EXCP01_DB) {
|
| 404 |
info.si_code = TARGET_TRAP_BRKPT; |
| 405 |
info._sifields._sigfault._addr = env->eip; |
| 406 |
} else {
|
| 407 |
info.si_code = TARGET_SI_KERNEL; |
| 408 |
info._sifields._sigfault._addr = 0;
|
| 409 |
} |
| 410 |
queue_signal(env, info.si_signo, &info); |
| 411 |
} |
| 412 |
break;
|
| 413 |
case EXCP04_INTO:
|
| 414 |
case EXCP05_BOUND:
|
| 415 |
#ifndef TARGET_X86_64
|
| 416 |
if (env->eflags & VM_MASK) {
|
| 417 |
handle_vm86_trap(env, trapnr); |
| 418 |
} else
|
| 419 |
#endif
|
| 420 |
{
|
| 421 |
info.si_signo = SIGSEGV; |
| 422 |
info.si_errno = 0;
|
| 423 |
info.si_code = TARGET_SI_KERNEL; |
| 424 |
info._sifields._sigfault._addr = 0;
|
| 425 |
queue_signal(env, info.si_signo, &info); |
| 426 |
} |
| 427 |
break;
|
| 428 |
case EXCP06_ILLOP:
|
| 429 |
info.si_signo = SIGILL; |
| 430 |
info.si_errno = 0;
|
| 431 |
info.si_code = TARGET_ILL_ILLOPN; |
| 432 |
info._sifields._sigfault._addr = env->eip; |
| 433 |
queue_signal(env, info.si_signo, &info); |
| 434 |
break;
|
| 435 |
case EXCP_INTERRUPT:
|
| 436 |
/* just indicate that signals should be handled asap */
|
| 437 |
break;
|
| 438 |
case EXCP_DEBUG:
|
| 439 |
{
|
| 440 |
int sig;
|
| 441 |
|
| 442 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 443 |
if (sig)
|
| 444 |
{
|
| 445 |
info.si_signo = sig; |
| 446 |
info.si_errno = 0;
|
| 447 |
info.si_code = TARGET_TRAP_BRKPT; |
| 448 |
queue_signal(env, info.si_signo, &info); |
| 449 |
} |
| 450 |
} |
| 451 |
break;
|
| 452 |
default:
|
| 453 |
pc = env->segs[R_CS].base + env->eip; |
| 454 |
fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
|
| 455 |
(long)pc, trapnr);
|
| 456 |
abort(); |
| 457 |
} |
| 458 |
process_pending_signals(env); |
| 459 |
} |
| 460 |
} |
| 461 |
#endif
|
| 462 |
|
| 463 |
#ifdef TARGET_ARM
|
| 464 |
|
| 465 |
#define get_user_code_u32(x, gaddr, doswap) \
|
| 466 |
({ abi_long __r = get_user_u32((x), (gaddr)); \
|
| 467 |
if (!__r && (doswap)) { \
|
| 468 |
(x) = bswap32(x); \ |
| 469 |
} \ |
| 470 |
__r; \ |
| 471 |
}) |
| 472 |
|
| 473 |
#define get_user_code_u16(x, gaddr, doswap) \
|
| 474 |
({ abi_long __r = get_user_u16((x), (gaddr)); \
|
| 475 |
if (!__r && (doswap)) { \
|
| 476 |
(x) = bswap16(x); \ |
| 477 |
} \ |
| 478 |
__r; \ |
| 479 |
}) |
| 480 |
|
| 481 |
/*
|
| 482 |
* See the Linux kernel's Documentation/arm/kernel_user_helpers.txt
|
| 483 |
* Input:
|
| 484 |
* r0 = pointer to oldval
|
| 485 |
* r1 = pointer to newval
|
| 486 |
* r2 = pointer to target value
|
| 487 |
*
|
| 488 |
* Output:
|
| 489 |
* r0 = 0 if *ptr was changed, non-0 if no exchange happened
|
| 490 |
* C set if *ptr was changed, clear if no exchange happened
|
| 491 |
*
|
| 492 |
* Note segv's in kernel helpers are a bit tricky, we can set the
|
| 493 |
* data address sensibly but the PC address is just the entry point.
|
| 494 |
*/
|
| 495 |
static void arm_kernel_cmpxchg64_helper(CPUARMState *env) |
| 496 |
{
|
| 497 |
uint64_t oldval, newval, val; |
| 498 |
uint32_t addr, cpsr; |
| 499 |
target_siginfo_t info; |
| 500 |
|
| 501 |
/* Based on the 32 bit code in do_kernel_trap */
|
| 502 |
|
| 503 |
/* XXX: This only works between threads, not between processes.
|
| 504 |
It's probably possible to implement this with native host
|
| 505 |
operations. However things like ldrex/strex are much harder so
|
| 506 |
there's not much point trying. */
|
| 507 |
start_exclusive(); |
| 508 |
cpsr = cpsr_read(env); |
| 509 |
addr = env->regs[2];
|
| 510 |
|
| 511 |
if (get_user_u64(oldval, env->regs[0])) { |
| 512 |
env->cp15.c6_data = env->regs[0];
|
| 513 |
goto segv;
|
| 514 |
}; |
| 515 |
|
| 516 |
if (get_user_u64(newval, env->regs[1])) { |
| 517 |
env->cp15.c6_data = env->regs[1];
|
| 518 |
goto segv;
|
| 519 |
}; |
| 520 |
|
| 521 |
if (get_user_u64(val, addr)) {
|
| 522 |
env->cp15.c6_data = addr; |
| 523 |
goto segv;
|
| 524 |
} |
| 525 |
|
| 526 |
if (val == oldval) {
|
| 527 |
val = newval; |
| 528 |
|
| 529 |
if (put_user_u64(val, addr)) {
|
| 530 |
env->cp15.c6_data = addr; |
| 531 |
goto segv;
|
| 532 |
}; |
| 533 |
|
| 534 |
env->regs[0] = 0; |
| 535 |
cpsr |= CPSR_C; |
| 536 |
} else {
|
| 537 |
env->regs[0] = -1; |
| 538 |
cpsr &= ~CPSR_C; |
| 539 |
} |
| 540 |
cpsr_write(env, cpsr, CPSR_C); |
| 541 |
end_exclusive(); |
| 542 |
return;
|
| 543 |
|
| 544 |
segv:
|
| 545 |
end_exclusive(); |
| 546 |
/* We get the PC of the entry address - which is as good as anything,
|
| 547 |
on a real kernel what you get depends on which mode it uses. */
|
| 548 |
info.si_signo = SIGSEGV; |
| 549 |
info.si_errno = 0;
|
| 550 |
/* XXX: check env->error_code */
|
| 551 |
info.si_code = TARGET_SEGV_MAPERR; |
| 552 |
info._sifields._sigfault._addr = env->cp15.c6_data; |
| 553 |
queue_signal(env, info.si_signo, &info); |
| 554 |
|
| 555 |
end_exclusive(); |
| 556 |
} |
| 557 |
|
| 558 |
/* Handle a jump to the kernel code page. */
|
| 559 |
static int |
| 560 |
do_kernel_trap(CPUARMState *env) |
| 561 |
{
|
| 562 |
uint32_t addr; |
| 563 |
uint32_t cpsr; |
| 564 |
uint32_t val; |
| 565 |
|
| 566 |
switch (env->regs[15]) { |
| 567 |
case 0xffff0fa0: /* __kernel_memory_barrier */ |
| 568 |
/* ??? No-op. Will need to do better for SMP. */
|
| 569 |
break;
|
| 570 |
case 0xffff0fc0: /* __kernel_cmpxchg */ |
| 571 |
/* XXX: This only works between threads, not between processes.
|
| 572 |
It's probably possible to implement this with native host
|
| 573 |
operations. However things like ldrex/strex are much harder so
|
| 574 |
there's not much point trying. */
|
| 575 |
start_exclusive(); |
| 576 |
cpsr = cpsr_read(env); |
| 577 |
addr = env->regs[2];
|
| 578 |
/* FIXME: This should SEGV if the access fails. */
|
| 579 |
if (get_user_u32(val, addr))
|
| 580 |
val = ~env->regs[0];
|
| 581 |
if (val == env->regs[0]) { |
| 582 |
val = env->regs[1];
|
| 583 |
/* FIXME: Check for segfaults. */
|
| 584 |
put_user_u32(val, addr); |
| 585 |
env->regs[0] = 0; |
| 586 |
cpsr |= CPSR_C; |
| 587 |
} else {
|
| 588 |
env->regs[0] = -1; |
| 589 |
cpsr &= ~CPSR_C; |
| 590 |
} |
| 591 |
cpsr_write(env, cpsr, CPSR_C); |
| 592 |
end_exclusive(); |
| 593 |
break;
|
| 594 |
case 0xffff0fe0: /* __kernel_get_tls */ |
| 595 |
env->regs[0] = env->cp15.c13_tls2;
|
| 596 |
break;
|
| 597 |
case 0xffff0f60: /* __kernel_cmpxchg64 */ |
| 598 |
arm_kernel_cmpxchg64_helper(env); |
| 599 |
break;
|
| 600 |
|
| 601 |
default:
|
| 602 |
return 1; |
| 603 |
} |
| 604 |
/* Jump back to the caller. */
|
| 605 |
addr = env->regs[14];
|
| 606 |
if (addr & 1) { |
| 607 |
env->thumb = 1;
|
| 608 |
addr &= ~1;
|
| 609 |
} |
| 610 |
env->regs[15] = addr;
|
| 611 |
|
| 612 |
return 0; |
| 613 |
} |
| 614 |
|
| 615 |
static int do_strex(CPUARMState *env) |
| 616 |
{
|
| 617 |
uint32_t val; |
| 618 |
int size;
|
| 619 |
int rc = 1; |
| 620 |
int segv = 0; |
| 621 |
uint32_t addr; |
| 622 |
start_exclusive(); |
| 623 |
addr = env->exclusive_addr; |
| 624 |
if (addr != env->exclusive_test) {
|
| 625 |
goto fail;
|
| 626 |
} |
| 627 |
size = env->exclusive_info & 0xf;
|
| 628 |
switch (size) {
|
| 629 |
case 0: |
| 630 |
segv = get_user_u8(val, addr); |
| 631 |
break;
|
| 632 |
case 1: |
| 633 |
segv = get_user_u16(val, addr); |
| 634 |
break;
|
| 635 |
case 2: |
| 636 |
case 3: |
| 637 |
segv = get_user_u32(val, addr); |
| 638 |
break;
|
| 639 |
default:
|
| 640 |
abort(); |
| 641 |
} |
| 642 |
if (segv) {
|
| 643 |
env->cp15.c6_data = addr; |
| 644 |
goto done;
|
| 645 |
} |
| 646 |
if (val != env->exclusive_val) {
|
| 647 |
goto fail;
|
| 648 |
} |
| 649 |
if (size == 3) { |
| 650 |
segv = get_user_u32(val, addr + 4);
|
| 651 |
if (segv) {
|
| 652 |
env->cp15.c6_data = addr + 4;
|
| 653 |
goto done;
|
| 654 |
} |
| 655 |
if (val != env->exclusive_high) {
|
| 656 |
goto fail;
|
| 657 |
} |
| 658 |
} |
| 659 |
val = env->regs[(env->exclusive_info >> 8) & 0xf]; |
| 660 |
switch (size) {
|
| 661 |
case 0: |
| 662 |
segv = put_user_u8(val, addr); |
| 663 |
break;
|
| 664 |
case 1: |
| 665 |
segv = put_user_u16(val, addr); |
| 666 |
break;
|
| 667 |
case 2: |
| 668 |
case 3: |
| 669 |
segv = put_user_u32(val, addr); |
| 670 |
break;
|
| 671 |
} |
| 672 |
if (segv) {
|
| 673 |
env->cp15.c6_data = addr; |
| 674 |
goto done;
|
| 675 |
} |
| 676 |
if (size == 3) { |
| 677 |
val = env->regs[(env->exclusive_info >> 12) & 0xf]; |
| 678 |
segv = put_user_u32(val, addr + 4);
|
| 679 |
if (segv) {
|
| 680 |
env->cp15.c6_data = addr + 4;
|
| 681 |
goto done;
|
| 682 |
} |
| 683 |
} |
| 684 |
rc = 0;
|
| 685 |
fail:
|
| 686 |
env->regs[15] += 4; |
| 687 |
env->regs[(env->exclusive_info >> 4) & 0xf] = rc; |
| 688 |
done:
|
| 689 |
end_exclusive(); |
| 690 |
return segv;
|
| 691 |
} |
| 692 |
|
| 693 |
void cpu_loop(CPUARMState *env)
|
| 694 |
{
|
| 695 |
int trapnr;
|
| 696 |
unsigned int n, insn; |
| 697 |
target_siginfo_t info; |
| 698 |
uint32_t addr; |
| 699 |
|
| 700 |
for(;;) {
|
| 701 |
cpu_exec_start(env); |
| 702 |
trapnr = cpu_arm_exec(env); |
| 703 |
cpu_exec_end(env); |
| 704 |
switch(trapnr) {
|
| 705 |
case EXCP_UDEF:
|
| 706 |
{
|
| 707 |
TaskState *ts = env->opaque; |
| 708 |
uint32_t opcode; |
| 709 |
int rc;
|
| 710 |
|
| 711 |
/* we handle the FPU emulation here, as Linux */
|
| 712 |
/* we get the opcode */
|
| 713 |
/* FIXME - what to do if get_user() fails? */
|
| 714 |
get_user_code_u32(opcode, env->regs[15], env->bswap_code);
|
| 715 |
|
| 716 |
rc = EmulateAll(opcode, &ts->fpa, env); |
| 717 |
if (rc == 0) { /* illegal instruction */ |
| 718 |
info.si_signo = SIGILL; |
| 719 |
info.si_errno = 0;
|
| 720 |
info.si_code = TARGET_ILL_ILLOPN; |
| 721 |
info._sifields._sigfault._addr = env->regs[15];
|
| 722 |
queue_signal(env, info.si_signo, &info); |
| 723 |
} else if (rc < 0) { /* FP exception */ |
| 724 |
int arm_fpe=0; |
| 725 |
|
| 726 |
/* translate softfloat flags to FPSR flags */
|
| 727 |
if (-rc & float_flag_invalid)
|
| 728 |
arm_fpe |= BIT_IOC; |
| 729 |
if (-rc & float_flag_divbyzero)
|
| 730 |
arm_fpe |= BIT_DZC; |
| 731 |
if (-rc & float_flag_overflow)
|
| 732 |
arm_fpe |= BIT_OFC; |
| 733 |
if (-rc & float_flag_underflow)
|
| 734 |
arm_fpe |= BIT_UFC; |
| 735 |
if (-rc & float_flag_inexact)
|
| 736 |
arm_fpe |= BIT_IXC; |
| 737 |
|
| 738 |
FPSR fpsr = ts->fpa.fpsr; |
| 739 |
//printf("fpsr 0x%x, arm_fpe 0x%x\n",fpsr,arm_fpe);
|
| 740 |
|
| 741 |
if (fpsr & (arm_fpe << 16)) { /* exception enabled? */ |
| 742 |
info.si_signo = SIGFPE; |
| 743 |
info.si_errno = 0;
|
| 744 |
|
| 745 |
/* ordered by priority, least first */
|
| 746 |
if (arm_fpe & BIT_IXC) info.si_code = TARGET_FPE_FLTRES;
|
| 747 |
if (arm_fpe & BIT_UFC) info.si_code = TARGET_FPE_FLTUND;
|
| 748 |
if (arm_fpe & BIT_OFC) info.si_code = TARGET_FPE_FLTOVF;
|
| 749 |
if (arm_fpe & BIT_DZC) info.si_code = TARGET_FPE_FLTDIV;
|
| 750 |
if (arm_fpe & BIT_IOC) info.si_code = TARGET_FPE_FLTINV;
|
| 751 |
|
| 752 |
info._sifields._sigfault._addr = env->regs[15];
|
| 753 |
queue_signal(env, info.si_signo, &info); |
| 754 |
} else {
|
| 755 |
env->regs[15] += 4; |
| 756 |
} |
| 757 |
|
| 758 |
/* accumulate unenabled exceptions */
|
| 759 |
if ((!(fpsr & BIT_IXE)) && (arm_fpe & BIT_IXC))
|
| 760 |
fpsr |= BIT_IXC; |
| 761 |
if ((!(fpsr & BIT_UFE)) && (arm_fpe & BIT_UFC))
|
| 762 |
fpsr |= BIT_UFC; |
| 763 |
if ((!(fpsr & BIT_OFE)) && (arm_fpe & BIT_OFC))
|
| 764 |
fpsr |= BIT_OFC; |
| 765 |
if ((!(fpsr & BIT_DZE)) && (arm_fpe & BIT_DZC))
|
| 766 |
fpsr |= BIT_DZC; |
| 767 |
if ((!(fpsr & BIT_IOE)) && (arm_fpe & BIT_IOC))
|
| 768 |
fpsr |= BIT_IOC; |
| 769 |
ts->fpa.fpsr=fpsr; |
| 770 |
} else { /* everything OK */ |
| 771 |
/* increment PC */
|
| 772 |
env->regs[15] += 4; |
| 773 |
} |
| 774 |
} |
| 775 |
break;
|
| 776 |
case EXCP_SWI:
|
| 777 |
case EXCP_BKPT:
|
| 778 |
{
|
| 779 |
env->eabi = 1;
|
| 780 |
/* system call */
|
| 781 |
if (trapnr == EXCP_BKPT) {
|
| 782 |
if (env->thumb) {
|
| 783 |
/* FIXME - what to do if get_user() fails? */
|
| 784 |
get_user_code_u16(insn, env->regs[15], env->bswap_code);
|
| 785 |
n = insn & 0xff;
|
| 786 |
env->regs[15] += 2; |
| 787 |
} else {
|
| 788 |
/* FIXME - what to do if get_user() fails? */
|
| 789 |
get_user_code_u32(insn, env->regs[15], env->bswap_code);
|
| 790 |
n = (insn & 0xf) | ((insn >> 4) & 0xff0); |
| 791 |
env->regs[15] += 4; |
| 792 |
} |
| 793 |
} else {
|
| 794 |
if (env->thumb) {
|
| 795 |
/* FIXME - what to do if get_user() fails? */
|
| 796 |
get_user_code_u16(insn, env->regs[15] - 2, |
| 797 |
env->bswap_code); |
| 798 |
n = insn & 0xff;
|
| 799 |
} else {
|
| 800 |
/* FIXME - what to do if get_user() fails? */
|
| 801 |
get_user_code_u32(insn, env->regs[15] - 4, |
| 802 |
env->bswap_code); |
| 803 |
n = insn & 0xffffff;
|
| 804 |
} |
| 805 |
} |
| 806 |
|
| 807 |
if (n == ARM_NR_cacheflush) {
|
| 808 |
/* nop */
|
| 809 |
} else if (n == ARM_NR_semihosting |
| 810 |
|| n == ARM_NR_thumb_semihosting) {
|
| 811 |
env->regs[0] = do_arm_semihosting (env);
|
| 812 |
} else if (n == 0 || n >= ARM_SYSCALL_BASE || env->thumb) { |
| 813 |
/* linux syscall */
|
| 814 |
if (env->thumb || n == 0) { |
| 815 |
n = env->regs[7];
|
| 816 |
} else {
|
| 817 |
n -= ARM_SYSCALL_BASE; |
| 818 |
env->eabi = 0;
|
| 819 |
} |
| 820 |
if ( n > ARM_NR_BASE) {
|
| 821 |
switch (n) {
|
| 822 |
case ARM_NR_cacheflush:
|
| 823 |
/* nop */
|
| 824 |
break;
|
| 825 |
case ARM_NR_set_tls:
|
| 826 |
cpu_set_tls(env, env->regs[0]);
|
| 827 |
env->regs[0] = 0; |
| 828 |
break;
|
| 829 |
default:
|
| 830 |
gemu_log("qemu: Unsupported ARM syscall: 0x%x\n",
|
| 831 |
n); |
| 832 |
env->regs[0] = -TARGET_ENOSYS;
|
| 833 |
break;
|
| 834 |
} |
| 835 |
} else {
|
| 836 |
env->regs[0] = do_syscall(env,
|
| 837 |
n, |
| 838 |
env->regs[0],
|
| 839 |
env->regs[1],
|
| 840 |
env->regs[2],
|
| 841 |
env->regs[3],
|
| 842 |
env->regs[4],
|
| 843 |
env->regs[5],
|
| 844 |
0, 0); |
| 845 |
} |
| 846 |
} else {
|
| 847 |
goto error;
|
| 848 |
} |
| 849 |
} |
| 850 |
break;
|
| 851 |
case EXCP_INTERRUPT:
|
| 852 |
/* just indicate that signals should be handled asap */
|
| 853 |
break;
|
| 854 |
case EXCP_PREFETCH_ABORT:
|
| 855 |
addr = env->cp15.c6_insn; |
| 856 |
goto do_segv;
|
| 857 |
case EXCP_DATA_ABORT:
|
| 858 |
addr = env->cp15.c6_data; |
| 859 |
do_segv:
|
| 860 |
{
|
| 861 |
info.si_signo = SIGSEGV; |
| 862 |
info.si_errno = 0;
|
| 863 |
/* XXX: check env->error_code */
|
| 864 |
info.si_code = TARGET_SEGV_MAPERR; |
| 865 |
info._sifields._sigfault._addr = addr; |
| 866 |
queue_signal(env, info.si_signo, &info); |
| 867 |
} |
| 868 |
break;
|
| 869 |
case EXCP_DEBUG:
|
| 870 |
{
|
| 871 |
int sig;
|
| 872 |
|
| 873 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 874 |
if (sig)
|
| 875 |
{
|
| 876 |
info.si_signo = sig; |
| 877 |
info.si_errno = 0;
|
| 878 |
info.si_code = TARGET_TRAP_BRKPT; |
| 879 |
queue_signal(env, info.si_signo, &info); |
| 880 |
} |
| 881 |
} |
| 882 |
break;
|
| 883 |
case EXCP_KERNEL_TRAP:
|
| 884 |
if (do_kernel_trap(env))
|
| 885 |
goto error;
|
| 886 |
break;
|
| 887 |
case EXCP_STREX:
|
| 888 |
if (do_strex(env)) {
|
| 889 |
addr = env->cp15.c6_data; |
| 890 |
goto do_segv;
|
| 891 |
} |
| 892 |
break;
|
| 893 |
default:
|
| 894 |
error:
|
| 895 |
fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
|
| 896 |
trapnr); |
| 897 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 898 |
abort(); |
| 899 |
} |
| 900 |
process_pending_signals(env); |
| 901 |
} |
| 902 |
} |
| 903 |
|
| 904 |
#endif
|
| 905 |
|
| 906 |
#ifdef TARGET_UNICORE32
|
| 907 |
|
| 908 |
void cpu_loop(CPUUniCore32State *env)
|
| 909 |
{
|
| 910 |
int trapnr;
|
| 911 |
unsigned int n, insn; |
| 912 |
target_siginfo_t info; |
| 913 |
|
| 914 |
for (;;) {
|
| 915 |
cpu_exec_start(env); |
| 916 |
trapnr = uc32_cpu_exec(env); |
| 917 |
cpu_exec_end(env); |
| 918 |
switch (trapnr) {
|
| 919 |
case UC32_EXCP_PRIV:
|
| 920 |
{
|
| 921 |
/* system call */
|
| 922 |
get_user_u32(insn, env->regs[31] - 4); |
| 923 |
n = insn & 0xffffff;
|
| 924 |
|
| 925 |
if (n >= UC32_SYSCALL_BASE) {
|
| 926 |
/* linux syscall */
|
| 927 |
n -= UC32_SYSCALL_BASE; |
| 928 |
if (n == UC32_SYSCALL_NR_set_tls) {
|
| 929 |
cpu_set_tls(env, env->regs[0]);
|
| 930 |
env->regs[0] = 0; |
| 931 |
} else {
|
| 932 |
env->regs[0] = do_syscall(env,
|
| 933 |
n, |
| 934 |
env->regs[0],
|
| 935 |
env->regs[1],
|
| 936 |
env->regs[2],
|
| 937 |
env->regs[3],
|
| 938 |
env->regs[4],
|
| 939 |
env->regs[5],
|
| 940 |
0, 0); |
| 941 |
} |
| 942 |
} else {
|
| 943 |
goto error;
|
| 944 |
} |
| 945 |
} |
| 946 |
break;
|
| 947 |
case UC32_EXCP_DTRAP:
|
| 948 |
case UC32_EXCP_ITRAP:
|
| 949 |
info.si_signo = SIGSEGV; |
| 950 |
info.si_errno = 0;
|
| 951 |
/* XXX: check env->error_code */
|
| 952 |
info.si_code = TARGET_SEGV_MAPERR; |
| 953 |
info._sifields._sigfault._addr = env->cp0.c4_faultaddr; |
| 954 |
queue_signal(env, info.si_signo, &info); |
| 955 |
break;
|
| 956 |
case EXCP_INTERRUPT:
|
| 957 |
/* just indicate that signals should be handled asap */
|
| 958 |
break;
|
| 959 |
case EXCP_DEBUG:
|
| 960 |
{
|
| 961 |
int sig;
|
| 962 |
|
| 963 |
sig = gdb_handlesig(env, TARGET_SIGTRAP); |
| 964 |
if (sig) {
|
| 965 |
info.si_signo = sig; |
| 966 |
info.si_errno = 0;
|
| 967 |
info.si_code = TARGET_TRAP_BRKPT; |
| 968 |
queue_signal(env, info.si_signo, &info); |
| 969 |
} |
| 970 |
} |
| 971 |
break;
|
| 972 |
default:
|
| 973 |
goto error;
|
| 974 |
} |
| 975 |
process_pending_signals(env); |
| 976 |
} |
| 977 |
|
| 978 |
error:
|
| 979 |
fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n", trapnr);
|
| 980 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 981 |
abort(); |
| 982 |
} |
| 983 |
#endif
|
| 984 |
|
| 985 |
#ifdef TARGET_SPARC
|
| 986 |
#define SPARC64_STACK_BIAS 2047 |
| 987 |
|
| 988 |
//#define DEBUG_WIN
|
| 989 |
|
| 990 |
/* WARNING: dealing with register windows _is_ complicated. More info
|
| 991 |
can be found at http://www.sics.se/~psm/sparcstack.html */
|
| 992 |
static inline int get_reg_index(CPUSPARCState *env, int cwp, int index) |
| 993 |
{
|
| 994 |
index = (index + cwp * 16) % (16 * env->nwindows); |
| 995 |
/* wrap handling : if cwp is on the last window, then we use the
|
| 996 |
registers 'after' the end */
|
| 997 |
if (index < 8 && env->cwp == env->nwindows - 1) |
| 998 |
index += 16 * env->nwindows;
|
| 999 |
return index;
|
| 1000 |
} |
| 1001 |
|
| 1002 |
/* save the register window 'cwp1' */
|
| 1003 |
static inline void save_window_offset(CPUSPARCState *env, int cwp1) |
| 1004 |
{
|
| 1005 |
unsigned int i; |
| 1006 |
abi_ulong sp_ptr; |
| 1007 |
|
| 1008 |
sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
|
| 1009 |
#ifdef TARGET_SPARC64
|
| 1010 |
if (sp_ptr & 3) |
| 1011 |
sp_ptr += SPARC64_STACK_BIAS; |
| 1012 |
#endif
|
| 1013 |
#if defined(DEBUG_WIN)
|
| 1014 |
printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n", |
| 1015 |
sp_ptr, cwp1); |
| 1016 |
#endif
|
| 1017 |
for(i = 0; i < 16; i++) { |
| 1018 |
/* FIXME - what to do if put_user() fails? */
|
| 1019 |
put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
|
| 1020 |
sp_ptr += sizeof(abi_ulong);
|
| 1021 |
} |
| 1022 |
} |
| 1023 |
|
| 1024 |
static void save_window(CPUSPARCState *env) |
| 1025 |
{
|
| 1026 |
#ifndef TARGET_SPARC64
|
| 1027 |
unsigned int new_wim; |
| 1028 |
new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) & |
| 1029 |
((1LL << env->nwindows) - 1); |
| 1030 |
save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
|
| 1031 |
env->wim = new_wim; |
| 1032 |
#else
|
| 1033 |
save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
|
| 1034 |
env->cansave++; |
| 1035 |
env->canrestore--; |
| 1036 |
#endif
|
| 1037 |
} |
| 1038 |
|
| 1039 |
static void restore_window(CPUSPARCState *env) |
| 1040 |
{
|
| 1041 |
#ifndef TARGET_SPARC64
|
| 1042 |
unsigned int new_wim; |
| 1043 |
#endif
|
| 1044 |
unsigned int i, cwp1; |
| 1045 |
abi_ulong sp_ptr; |
| 1046 |
|
| 1047 |
#ifndef TARGET_SPARC64
|
| 1048 |
new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) & |
| 1049 |
((1LL << env->nwindows) - 1); |
| 1050 |
#endif
|
| 1051 |
|
| 1052 |
/* restore the invalid window */
|
| 1053 |
cwp1 = cpu_cwp_inc(env, env->cwp + 1);
|
| 1054 |
sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
|
| 1055 |
#ifdef TARGET_SPARC64
|
| 1056 |
if (sp_ptr & 3) |
| 1057 |
sp_ptr += SPARC64_STACK_BIAS; |
| 1058 |
#endif
|
| 1059 |
#if defined(DEBUG_WIN)
|
| 1060 |
printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n", |
| 1061 |
sp_ptr, cwp1); |
| 1062 |
#endif
|
| 1063 |
for(i = 0; i < 16; i++) { |
| 1064 |
/* FIXME - what to do if get_user() fails? */
|
| 1065 |
get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
|
| 1066 |
sp_ptr += sizeof(abi_ulong);
|
| 1067 |
} |
| 1068 |
#ifdef TARGET_SPARC64
|
| 1069 |
env->canrestore++; |
| 1070 |
if (env->cleanwin < env->nwindows - 1) |
| 1071 |
env->cleanwin++; |
| 1072 |
env->cansave--; |
| 1073 |
#else
|
| 1074 |
env->wim = new_wim; |
| 1075 |
#endif
|
| 1076 |
} |
| 1077 |
|
| 1078 |
static void flush_windows(CPUSPARCState *env) |
| 1079 |
{
|
| 1080 |
int offset, cwp1;
|
| 1081 |
|
| 1082 |
offset = 1;
|
| 1083 |
for(;;) {
|
| 1084 |
/* if restore would invoke restore_window(), then we can stop */
|
| 1085 |
cwp1 = cpu_cwp_inc(env, env->cwp + offset); |
| 1086 |
#ifndef TARGET_SPARC64
|
| 1087 |
if (env->wim & (1 << cwp1)) |
| 1088 |
break;
|
| 1089 |
#else
|
| 1090 |
if (env->canrestore == 0) |
| 1091 |
break;
|
| 1092 |
env->cansave++; |
| 1093 |
env->canrestore--; |
| 1094 |
#endif
|
| 1095 |
save_window_offset(env, cwp1); |
| 1096 |
offset++; |
| 1097 |
} |
| 1098 |
cwp1 = cpu_cwp_inc(env, env->cwp + 1);
|
| 1099 |
#ifndef TARGET_SPARC64
|
| 1100 |
/* set wim so that restore will reload the registers */
|
| 1101 |
env->wim = 1 << cwp1;
|
| 1102 |
#endif
|
| 1103 |
#if defined(DEBUG_WIN)
|
| 1104 |
printf("flush_windows: nb=%d\n", offset - 1); |
| 1105 |
#endif
|
| 1106 |
} |
| 1107 |
|
| 1108 |
void cpu_loop (CPUSPARCState *env)
|
| 1109 |
{
|
| 1110 |
int trapnr;
|
| 1111 |
abi_long ret; |
| 1112 |
target_siginfo_t info; |
| 1113 |
|
| 1114 |
while (1) { |
| 1115 |
trapnr = cpu_sparc_exec (env); |
| 1116 |
|
| 1117 |
switch (trapnr) {
|
| 1118 |
#ifndef TARGET_SPARC64
|
| 1119 |
case 0x88: |
| 1120 |
case 0x90: |
| 1121 |
#else
|
| 1122 |
case 0x110: |
| 1123 |
case 0x16d: |
| 1124 |
#endif
|
| 1125 |
ret = do_syscall (env, env->gregs[1],
|
| 1126 |
env->regwptr[0], env->regwptr[1], |
| 1127 |
env->regwptr[2], env->regwptr[3], |
| 1128 |
env->regwptr[4], env->regwptr[5], |
| 1129 |
0, 0); |
| 1130 |
if ((abi_ulong)ret >= (abi_ulong)(-515)) { |
| 1131 |
#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
|
| 1132 |
env->xcc |= PSR_CARRY; |
| 1133 |
#else
|
| 1134 |
env->psr |= PSR_CARRY; |
| 1135 |
#endif
|
| 1136 |
ret = -ret; |
| 1137 |
} else {
|
| 1138 |
#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
|
| 1139 |
env->xcc &= ~PSR_CARRY; |
| 1140 |
#else
|
| 1141 |
env->psr &= ~PSR_CARRY; |
| 1142 |
#endif
|
| 1143 |
} |
| 1144 |
env->regwptr[0] = ret;
|
| 1145 |
/* next instruction */
|
| 1146 |
env->pc = env->npc; |
| 1147 |
env->npc = env->npc + 4;
|
| 1148 |
break;
|
| 1149 |
case 0x83: /* flush windows */ |
| 1150 |
#ifdef TARGET_ABI32
|
| 1151 |
case 0x103: |
| 1152 |
#endif
|
| 1153 |
flush_windows(env); |
| 1154 |
/* next instruction */
|
| 1155 |
env->pc = env->npc; |
| 1156 |
env->npc = env->npc + 4;
|
| 1157 |
break;
|
| 1158 |
#ifndef TARGET_SPARC64
|
| 1159 |
case TT_WIN_OVF: /* window overflow */ |
| 1160 |
save_window(env); |
| 1161 |
break;
|
| 1162 |
case TT_WIN_UNF: /* window underflow */ |
| 1163 |
restore_window(env); |
| 1164 |
break;
|
| 1165 |
case TT_TFAULT:
|
| 1166 |
case TT_DFAULT:
|
| 1167 |
{
|
| 1168 |
info.si_signo = TARGET_SIGSEGV; |
| 1169 |
info.si_errno = 0;
|
| 1170 |
/* XXX: check env->error_code */
|
| 1171 |
info.si_code = TARGET_SEGV_MAPERR; |
| 1172 |
info._sifields._sigfault._addr = env->mmuregs[4];
|
| 1173 |
queue_signal(env, info.si_signo, &info); |
| 1174 |
} |
| 1175 |
break;
|
| 1176 |
#else
|
| 1177 |
case TT_SPILL: /* window overflow */ |
| 1178 |
save_window(env); |
| 1179 |
break;
|
| 1180 |
case TT_FILL: /* window underflow */ |
| 1181 |
restore_window(env); |
| 1182 |
break;
|
| 1183 |
case TT_TFAULT:
|
| 1184 |
case TT_DFAULT:
|
| 1185 |
{
|
| 1186 |
info.si_signo = TARGET_SIGSEGV; |
| 1187 |
info.si_errno = 0;
|
| 1188 |
/* XXX: check env->error_code */
|
| 1189 |
info.si_code = TARGET_SEGV_MAPERR; |
| 1190 |
if (trapnr == TT_DFAULT)
|
| 1191 |
info._sifields._sigfault._addr = env->dmmuregs[4];
|
| 1192 |
else
|
| 1193 |
info._sifields._sigfault._addr = cpu_tsptr(env)->tpc; |
| 1194 |
queue_signal(env, info.si_signo, &info); |
| 1195 |
} |
| 1196 |
break;
|
| 1197 |
#ifndef TARGET_ABI32
|
| 1198 |
case 0x16e: |
| 1199 |
flush_windows(env); |
| 1200 |
sparc64_get_context(env); |
| 1201 |
break;
|
| 1202 |
case 0x16f: |
| 1203 |
flush_windows(env); |
| 1204 |
sparc64_set_context(env); |
| 1205 |
break;
|
| 1206 |
#endif
|
| 1207 |
#endif
|
| 1208 |
case EXCP_INTERRUPT:
|
| 1209 |
/* just indicate that signals should be handled asap */
|
| 1210 |
break;
|
| 1211 |
case TT_ILL_INSN:
|
| 1212 |
{
|
| 1213 |
info.si_signo = TARGET_SIGILL; |
| 1214 |
info.si_errno = 0;
|
| 1215 |
info.si_code = TARGET_ILL_ILLOPC; |
| 1216 |
info._sifields._sigfault._addr = env->pc; |
| 1217 |
queue_signal(env, info.si_signo, &info); |
| 1218 |
} |
| 1219 |
break;
|
| 1220 |
case EXCP_DEBUG:
|
| 1221 |
{
|
| 1222 |
int sig;
|
| 1223 |
|
| 1224 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 1225 |
if (sig)
|
| 1226 |
{
|
| 1227 |
info.si_signo = sig; |
| 1228 |
info.si_errno = 0;
|
| 1229 |
info.si_code = TARGET_TRAP_BRKPT; |
| 1230 |
queue_signal(env, info.si_signo, &info); |
| 1231 |
} |
| 1232 |
} |
| 1233 |
break;
|
| 1234 |
default:
|
| 1235 |
printf ("Unhandled trap: 0x%x\n", trapnr);
|
| 1236 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 1237 |
exit (1);
|
| 1238 |
} |
| 1239 |
process_pending_signals (env); |
| 1240 |
} |
| 1241 |
} |
| 1242 |
|
| 1243 |
#endif
|
| 1244 |
|
| 1245 |
#ifdef TARGET_PPC
|
| 1246 |
static inline uint64_t cpu_ppc_get_tb(CPUPPCState *env) |
| 1247 |
{
|
| 1248 |
/* TO FIX */
|
| 1249 |
return 0; |
| 1250 |
} |
| 1251 |
|
| 1252 |
uint64_t cpu_ppc_load_tbl(CPUPPCState *env) |
| 1253 |
{
|
| 1254 |
return cpu_ppc_get_tb(env);
|
| 1255 |
} |
| 1256 |
|
| 1257 |
uint32_t cpu_ppc_load_tbu(CPUPPCState *env) |
| 1258 |
{
|
| 1259 |
return cpu_ppc_get_tb(env) >> 32; |
| 1260 |
} |
| 1261 |
|
| 1262 |
uint64_t cpu_ppc_load_atbl(CPUPPCState *env) |
| 1263 |
{
|
| 1264 |
return cpu_ppc_get_tb(env);
|
| 1265 |
} |
| 1266 |
|
| 1267 |
uint32_t cpu_ppc_load_atbu(CPUPPCState *env) |
| 1268 |
{
|
| 1269 |
return cpu_ppc_get_tb(env) >> 32; |
| 1270 |
} |
| 1271 |
|
| 1272 |
uint32_t cpu_ppc601_load_rtcu(CPUPPCState *env) |
| 1273 |
__attribute__ (( alias ("cpu_ppc_load_tbu") ));
|
| 1274 |
|
| 1275 |
uint32_t cpu_ppc601_load_rtcl(CPUPPCState *env) |
| 1276 |
{
|
| 1277 |
return cpu_ppc_load_tbl(env) & 0x3FFFFF80; |
| 1278 |
} |
| 1279 |
|
| 1280 |
/* XXX: to be fixed */
|
| 1281 |
int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, uint32_t *valp) |
| 1282 |
{
|
| 1283 |
return -1; |
| 1284 |
} |
| 1285 |
|
| 1286 |
int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, uint32_t val) |
| 1287 |
{
|
| 1288 |
return -1; |
| 1289 |
} |
| 1290 |
|
| 1291 |
#define EXCP_DUMP(env, fmt, ...) \
|
| 1292 |
do { \
|
| 1293 |
fprintf(stderr, fmt , ## __VA_ARGS__); \ |
| 1294 |
cpu_dump_state(env, stderr, fprintf, 0); \
|
| 1295 |
qemu_log(fmt, ## __VA_ARGS__); \ |
| 1296 |
if (qemu_log_enabled()) { \
|
| 1297 |
log_cpu_state(env, 0); \
|
| 1298 |
} \ |
| 1299 |
} while (0) |
| 1300 |
|
| 1301 |
static int do_store_exclusive(CPUPPCState *env) |
| 1302 |
{
|
| 1303 |
target_ulong addr; |
| 1304 |
target_ulong page_addr; |
| 1305 |
target_ulong val; |
| 1306 |
int flags;
|
| 1307 |
int segv = 0; |
| 1308 |
|
| 1309 |
addr = env->reserve_ea; |
| 1310 |
page_addr = addr & TARGET_PAGE_MASK; |
| 1311 |
start_exclusive(); |
| 1312 |
mmap_lock(); |
| 1313 |
flags = page_get_flags(page_addr); |
| 1314 |
if ((flags & PAGE_READ) == 0) { |
| 1315 |
segv = 1;
|
| 1316 |
} else {
|
| 1317 |
int reg = env->reserve_info & 0x1f; |
| 1318 |
int size = (env->reserve_info >> 5) & 0xf; |
| 1319 |
int stored = 0; |
| 1320 |
|
| 1321 |
if (addr == env->reserve_addr) {
|
| 1322 |
switch (size) {
|
| 1323 |
case 1: segv = get_user_u8(val, addr); break; |
| 1324 |
case 2: segv = get_user_u16(val, addr); break; |
| 1325 |
case 4: segv = get_user_u32(val, addr); break; |
| 1326 |
#if defined(TARGET_PPC64)
|
| 1327 |
case 8: segv = get_user_u64(val, addr); break; |
| 1328 |
#endif
|
| 1329 |
default: abort();
|
| 1330 |
} |
| 1331 |
if (!segv && val == env->reserve_val) {
|
| 1332 |
val = env->gpr[reg]; |
| 1333 |
switch (size) {
|
| 1334 |
case 1: segv = put_user_u8(val, addr); break; |
| 1335 |
case 2: segv = put_user_u16(val, addr); break; |
| 1336 |
case 4: segv = put_user_u32(val, addr); break; |
| 1337 |
#if defined(TARGET_PPC64)
|
| 1338 |
case 8: segv = put_user_u64(val, addr); break; |
| 1339 |
#endif
|
| 1340 |
default: abort();
|
| 1341 |
} |
| 1342 |
if (!segv) {
|
| 1343 |
stored = 1;
|
| 1344 |
} |
| 1345 |
} |
| 1346 |
} |
| 1347 |
env->crf[0] = (stored << 1) | xer_so; |
| 1348 |
env->reserve_addr = (target_ulong)-1;
|
| 1349 |
} |
| 1350 |
if (!segv) {
|
| 1351 |
env->nip += 4;
|
| 1352 |
} |
| 1353 |
mmap_unlock(); |
| 1354 |
end_exclusive(); |
| 1355 |
return segv;
|
| 1356 |
} |
| 1357 |
|
| 1358 |
void cpu_loop(CPUPPCState *env)
|
| 1359 |
{
|
| 1360 |
target_siginfo_t info; |
| 1361 |
int trapnr;
|
| 1362 |
target_ulong ret; |
| 1363 |
|
| 1364 |
for(;;) {
|
| 1365 |
cpu_exec_start(env); |
| 1366 |
trapnr = cpu_ppc_exec(env); |
| 1367 |
cpu_exec_end(env); |
| 1368 |
switch(trapnr) {
|
| 1369 |
case POWERPC_EXCP_NONE:
|
| 1370 |
/* Just go on */
|
| 1371 |
break;
|
| 1372 |
case POWERPC_EXCP_CRITICAL: /* Critical input */ |
| 1373 |
cpu_abort(env, "Critical interrupt while in user mode. "
|
| 1374 |
"Aborting\n");
|
| 1375 |
break;
|
| 1376 |
case POWERPC_EXCP_MCHECK: /* Machine check exception */ |
| 1377 |
cpu_abort(env, "Machine check exception while in user mode. "
|
| 1378 |
"Aborting\n");
|
| 1379 |
break;
|
| 1380 |
case POWERPC_EXCP_DSI: /* Data storage exception */ |
| 1381 |
EXCP_DUMP(env, "Invalid data memory access: 0x" TARGET_FMT_lx "\n", |
| 1382 |
env->spr[SPR_DAR]); |
| 1383 |
/* XXX: check this. Seems bugged */
|
| 1384 |
switch (env->error_code & 0xFF000000) { |
| 1385 |
case 0x40000000: |
| 1386 |
info.si_signo = TARGET_SIGSEGV; |
| 1387 |
info.si_errno = 0;
|
| 1388 |
info.si_code = TARGET_SEGV_MAPERR; |
| 1389 |
break;
|
| 1390 |
case 0x04000000: |
| 1391 |
info.si_signo = TARGET_SIGILL; |
| 1392 |
info.si_errno = 0;
|
| 1393 |
info.si_code = TARGET_ILL_ILLADR; |
| 1394 |
break;
|
| 1395 |
case 0x08000000: |
| 1396 |
info.si_signo = TARGET_SIGSEGV; |
| 1397 |
info.si_errno = 0;
|
| 1398 |
info.si_code = TARGET_SEGV_ACCERR; |
| 1399 |
break;
|
| 1400 |
default:
|
| 1401 |
/* Let's send a regular segfault... */
|
| 1402 |
EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
|
| 1403 |
env->error_code); |
| 1404 |
info.si_signo = TARGET_SIGSEGV; |
| 1405 |
info.si_errno = 0;
|
| 1406 |
info.si_code = TARGET_SEGV_MAPERR; |
| 1407 |
break;
|
| 1408 |
} |
| 1409 |
info._sifields._sigfault._addr = env->nip; |
| 1410 |
queue_signal(env, info.si_signo, &info); |
| 1411 |
break;
|
| 1412 |
case POWERPC_EXCP_ISI: /* Instruction storage exception */ |
| 1413 |
EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" TARGET_FMT_lx
|
| 1414 |
"\n", env->spr[SPR_SRR0]);
|
| 1415 |
/* XXX: check this */
|
| 1416 |
switch (env->error_code & 0xFF000000) { |
| 1417 |
case 0x40000000: |
| 1418 |
info.si_signo = TARGET_SIGSEGV; |
| 1419 |
info.si_errno = 0;
|
| 1420 |
info.si_code = TARGET_SEGV_MAPERR; |
| 1421 |
break;
|
| 1422 |
case 0x10000000: |
| 1423 |
case 0x08000000: |
| 1424 |
info.si_signo = TARGET_SIGSEGV; |
| 1425 |
info.si_errno = 0;
|
| 1426 |
info.si_code = TARGET_SEGV_ACCERR; |
| 1427 |
break;
|
| 1428 |
default:
|
| 1429 |
/* Let's send a regular segfault... */
|
| 1430 |
EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
|
| 1431 |
env->error_code); |
| 1432 |
info.si_signo = TARGET_SIGSEGV; |
| 1433 |
info.si_errno = 0;
|
| 1434 |
info.si_code = TARGET_SEGV_MAPERR; |
| 1435 |
break;
|
| 1436 |
} |
| 1437 |
info._sifields._sigfault._addr = env->nip - 4;
|
| 1438 |
queue_signal(env, info.si_signo, &info); |
| 1439 |
break;
|
| 1440 |
case POWERPC_EXCP_EXTERNAL: /* External input */ |
| 1441 |
cpu_abort(env, "External interrupt while in user mode. "
|
| 1442 |
"Aborting\n");
|
| 1443 |
break;
|
| 1444 |
case POWERPC_EXCP_ALIGN: /* Alignment exception */ |
| 1445 |
EXCP_DUMP(env, "Unaligned memory access\n");
|
| 1446 |
/* XXX: check this */
|
| 1447 |
info.si_signo = TARGET_SIGBUS; |
| 1448 |
info.si_errno = 0;
|
| 1449 |
info.si_code = TARGET_BUS_ADRALN; |
| 1450 |
info._sifields._sigfault._addr = env->nip - 4;
|
| 1451 |
queue_signal(env, info.si_signo, &info); |
| 1452 |
break;
|
| 1453 |
case POWERPC_EXCP_PROGRAM: /* Program exception */ |
| 1454 |
/* XXX: check this */
|
| 1455 |
switch (env->error_code & ~0xF) { |
| 1456 |
case POWERPC_EXCP_FP:
|
| 1457 |
EXCP_DUMP(env, "Floating point program exception\n");
|
| 1458 |
info.si_signo = TARGET_SIGFPE; |
| 1459 |
info.si_errno = 0;
|
| 1460 |
switch (env->error_code & 0xF) { |
| 1461 |
case POWERPC_EXCP_FP_OX:
|
| 1462 |
info.si_code = TARGET_FPE_FLTOVF; |
| 1463 |
break;
|
| 1464 |
case POWERPC_EXCP_FP_UX:
|
| 1465 |
info.si_code = TARGET_FPE_FLTUND; |
| 1466 |
break;
|
| 1467 |
case POWERPC_EXCP_FP_ZX:
|
| 1468 |
case POWERPC_EXCP_FP_VXZDZ:
|
| 1469 |
info.si_code = TARGET_FPE_FLTDIV; |
| 1470 |
break;
|
| 1471 |
case POWERPC_EXCP_FP_XX:
|
| 1472 |
info.si_code = TARGET_FPE_FLTRES; |
| 1473 |
break;
|
| 1474 |
case POWERPC_EXCP_FP_VXSOFT:
|
| 1475 |
info.si_code = TARGET_FPE_FLTINV; |
| 1476 |
break;
|
| 1477 |
case POWERPC_EXCP_FP_VXSNAN:
|
| 1478 |
case POWERPC_EXCP_FP_VXISI:
|
| 1479 |
case POWERPC_EXCP_FP_VXIDI:
|
| 1480 |
case POWERPC_EXCP_FP_VXIMZ:
|
| 1481 |
case POWERPC_EXCP_FP_VXVC:
|
| 1482 |
case POWERPC_EXCP_FP_VXSQRT:
|
| 1483 |
case POWERPC_EXCP_FP_VXCVI:
|
| 1484 |
info.si_code = TARGET_FPE_FLTSUB; |
| 1485 |
break;
|
| 1486 |
default:
|
| 1487 |
EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
|
| 1488 |
env->error_code); |
| 1489 |
break;
|
| 1490 |
} |
| 1491 |
break;
|
| 1492 |
case POWERPC_EXCP_INVAL:
|
| 1493 |
EXCP_DUMP(env, "Invalid instruction\n");
|
| 1494 |
info.si_signo = TARGET_SIGILL; |
| 1495 |
info.si_errno = 0;
|
| 1496 |
switch (env->error_code & 0xF) { |
| 1497 |
case POWERPC_EXCP_INVAL_INVAL:
|
| 1498 |
info.si_code = TARGET_ILL_ILLOPC; |
| 1499 |
break;
|
| 1500 |
case POWERPC_EXCP_INVAL_LSWX:
|
| 1501 |
info.si_code = TARGET_ILL_ILLOPN; |
| 1502 |
break;
|
| 1503 |
case POWERPC_EXCP_INVAL_SPR:
|
| 1504 |
info.si_code = TARGET_ILL_PRVREG; |
| 1505 |
break;
|
| 1506 |
case POWERPC_EXCP_INVAL_FP:
|
| 1507 |
info.si_code = TARGET_ILL_COPROC; |
| 1508 |
break;
|
| 1509 |
default:
|
| 1510 |
EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
|
| 1511 |
env->error_code & 0xF);
|
| 1512 |
info.si_code = TARGET_ILL_ILLADR; |
| 1513 |
break;
|
| 1514 |
} |
| 1515 |
break;
|
| 1516 |
case POWERPC_EXCP_PRIV:
|
| 1517 |
EXCP_DUMP(env, "Privilege violation\n");
|
| 1518 |
info.si_signo = TARGET_SIGILL; |
| 1519 |
info.si_errno = 0;
|
| 1520 |
switch (env->error_code & 0xF) { |
| 1521 |
case POWERPC_EXCP_PRIV_OPC:
|
| 1522 |
info.si_code = TARGET_ILL_PRVOPC; |
| 1523 |
break;
|
| 1524 |
case POWERPC_EXCP_PRIV_REG:
|
| 1525 |
info.si_code = TARGET_ILL_PRVREG; |
| 1526 |
break;
|
| 1527 |
default:
|
| 1528 |
EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
|
| 1529 |
env->error_code & 0xF);
|
| 1530 |
info.si_code = TARGET_ILL_PRVOPC; |
| 1531 |
break;
|
| 1532 |
} |
| 1533 |
break;
|
| 1534 |
case POWERPC_EXCP_TRAP:
|
| 1535 |
cpu_abort(env, "Tried to call a TRAP\n");
|
| 1536 |
break;
|
| 1537 |
default:
|
| 1538 |
/* Should not happen ! */
|
| 1539 |
cpu_abort(env, "Unknown program exception (%02x)\n",
|
| 1540 |
env->error_code); |
| 1541 |
break;
|
| 1542 |
} |
| 1543 |
info._sifields._sigfault._addr = env->nip - 4;
|
| 1544 |
queue_signal(env, info.si_signo, &info); |
| 1545 |
break;
|
| 1546 |
case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */ |
| 1547 |
EXCP_DUMP(env, "No floating point allowed\n");
|
| 1548 |
info.si_signo = TARGET_SIGILL; |
| 1549 |
info.si_errno = 0;
|
| 1550 |
info.si_code = TARGET_ILL_COPROC; |
| 1551 |
info._sifields._sigfault._addr = env->nip - 4;
|
| 1552 |
queue_signal(env, info.si_signo, &info); |
| 1553 |
break;
|
| 1554 |
case POWERPC_EXCP_SYSCALL: /* System call exception */ |
| 1555 |
cpu_abort(env, "Syscall exception while in user mode. "
|
| 1556 |
"Aborting\n");
|
| 1557 |
break;
|
| 1558 |
case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */ |
| 1559 |
EXCP_DUMP(env, "No APU instruction allowed\n");
|
| 1560 |
info.si_signo = TARGET_SIGILL; |
| 1561 |
info.si_errno = 0;
|
| 1562 |
info.si_code = TARGET_ILL_COPROC; |
| 1563 |
info._sifields._sigfault._addr = env->nip - 4;
|
| 1564 |
queue_signal(env, info.si_signo, &info); |
| 1565 |
break;
|
| 1566 |
case POWERPC_EXCP_DECR: /* Decrementer exception */ |
| 1567 |
cpu_abort(env, "Decrementer interrupt while in user mode. "
|
| 1568 |
"Aborting\n");
|
| 1569 |
break;
|
| 1570 |
case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */ |
| 1571 |
cpu_abort(env, "Fix interval timer interrupt while in user mode. "
|
| 1572 |
"Aborting\n");
|
| 1573 |
break;
|
| 1574 |
case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */ |
| 1575 |
cpu_abort(env, "Watchdog timer interrupt while in user mode. "
|
| 1576 |
"Aborting\n");
|
| 1577 |
break;
|
| 1578 |
case POWERPC_EXCP_DTLB: /* Data TLB error */ |
| 1579 |
cpu_abort(env, "Data TLB exception while in user mode. "
|
| 1580 |
"Aborting\n");
|
| 1581 |
break;
|
| 1582 |
case POWERPC_EXCP_ITLB: /* Instruction TLB error */ |
| 1583 |
cpu_abort(env, "Instruction TLB exception while in user mode. "
|
| 1584 |
"Aborting\n");
|
| 1585 |
break;
|
| 1586 |
case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */ |
| 1587 |
EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
|
| 1588 |
info.si_signo = TARGET_SIGILL; |
| 1589 |
info.si_errno = 0;
|
| 1590 |
info.si_code = TARGET_ILL_COPROC; |
| 1591 |
info._sifields._sigfault._addr = env->nip - 4;
|
| 1592 |
queue_signal(env, info.si_signo, &info); |
| 1593 |
break;
|
| 1594 |
case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */ |
| 1595 |
cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
|
| 1596 |
break;
|
| 1597 |
case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */ |
| 1598 |
cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
|
| 1599 |
break;
|
| 1600 |
case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */ |
| 1601 |
cpu_abort(env, "Performance monitor exception not handled\n");
|
| 1602 |
break;
|
| 1603 |
case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */ |
| 1604 |
cpu_abort(env, "Doorbell interrupt while in user mode. "
|
| 1605 |
"Aborting\n");
|
| 1606 |
break;
|
| 1607 |
case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */ |
| 1608 |
cpu_abort(env, "Doorbell critical interrupt while in user mode. "
|
| 1609 |
"Aborting\n");
|
| 1610 |
break;
|
| 1611 |
case POWERPC_EXCP_RESET: /* System reset exception */ |
| 1612 |
cpu_abort(env, "Reset interrupt while in user mode. "
|
| 1613 |
"Aborting\n");
|
| 1614 |
break;
|
| 1615 |
case POWERPC_EXCP_DSEG: /* Data segment exception */ |
| 1616 |
cpu_abort(env, "Data segment exception while in user mode. "
|
| 1617 |
"Aborting\n");
|
| 1618 |
break;
|
| 1619 |
case POWERPC_EXCP_ISEG: /* Instruction segment exception */ |
| 1620 |
cpu_abort(env, "Instruction segment exception "
|
| 1621 |
"while in user mode. Aborting\n");
|
| 1622 |
break;
|
| 1623 |
/* PowerPC 64 with hypervisor mode support */
|
| 1624 |
case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */ |
| 1625 |
cpu_abort(env, "Hypervisor decrementer interrupt "
|
| 1626 |
"while in user mode. Aborting\n");
|
| 1627 |
break;
|
| 1628 |
case POWERPC_EXCP_TRACE: /* Trace exception */ |
| 1629 |
/* Nothing to do:
|
| 1630 |
* we use this exception to emulate step-by-step execution mode.
|
| 1631 |
*/
|
| 1632 |
break;
|
| 1633 |
/* PowerPC 64 with hypervisor mode support */
|
| 1634 |
case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */ |
| 1635 |
cpu_abort(env, "Hypervisor data storage exception "
|
| 1636 |
"while in user mode. Aborting\n");
|
| 1637 |
break;
|
| 1638 |
case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */ |
| 1639 |
cpu_abort(env, "Hypervisor instruction storage exception "
|
| 1640 |
"while in user mode. Aborting\n");
|
| 1641 |
break;
|
| 1642 |
case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */ |
| 1643 |
cpu_abort(env, "Hypervisor data segment exception "
|
| 1644 |
"while in user mode. Aborting\n");
|
| 1645 |
break;
|
| 1646 |
case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */ |
| 1647 |
cpu_abort(env, "Hypervisor instruction segment exception "
|
| 1648 |
"while in user mode. Aborting\n");
|
| 1649 |
break;
|
| 1650 |
case POWERPC_EXCP_VPU: /* Vector unavailable exception */ |
| 1651 |
EXCP_DUMP(env, "No Altivec instructions allowed\n");
|
| 1652 |
info.si_signo = TARGET_SIGILL; |
| 1653 |
info.si_errno = 0;
|
| 1654 |
info.si_code = TARGET_ILL_COPROC; |
| 1655 |
info._sifields._sigfault._addr = env->nip - 4;
|
| 1656 |
queue_signal(env, info.si_signo, &info); |
| 1657 |
break;
|
| 1658 |
case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */ |
| 1659 |
cpu_abort(env, "Programmable interval timer interrupt "
|
| 1660 |
"while in user mode. Aborting\n");
|
| 1661 |
break;
|
| 1662 |
case POWERPC_EXCP_IO: /* IO error exception */ |
| 1663 |
cpu_abort(env, "IO error exception while in user mode. "
|
| 1664 |
"Aborting\n");
|
| 1665 |
break;
|
| 1666 |
case POWERPC_EXCP_RUNM: /* Run mode exception */ |
| 1667 |
cpu_abort(env, "Run mode exception while in user mode. "
|
| 1668 |
"Aborting\n");
|
| 1669 |
break;
|
| 1670 |
case POWERPC_EXCP_EMUL: /* Emulation trap exception */ |
| 1671 |
cpu_abort(env, "Emulation trap exception not handled\n");
|
| 1672 |
break;
|
| 1673 |
case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */ |
| 1674 |
cpu_abort(env, "Instruction fetch TLB exception "
|
| 1675 |
"while in user-mode. Aborting");
|
| 1676 |
break;
|
| 1677 |
case POWERPC_EXCP_DLTLB: /* Data load TLB miss */ |
| 1678 |
cpu_abort(env, "Data load TLB exception while in user-mode. "
|
| 1679 |
"Aborting");
|
| 1680 |
break;
|
| 1681 |
case POWERPC_EXCP_DSTLB: /* Data store TLB miss */ |
| 1682 |
cpu_abort(env, "Data store TLB exception while in user-mode. "
|
| 1683 |
"Aborting");
|
| 1684 |
break;
|
| 1685 |
case POWERPC_EXCP_FPA: /* Floating-point assist exception */ |
| 1686 |
cpu_abort(env, "Floating-point assist exception not handled\n");
|
| 1687 |
break;
|
| 1688 |
case POWERPC_EXCP_IABR: /* Instruction address breakpoint */ |
| 1689 |
cpu_abort(env, "Instruction address breakpoint exception "
|
| 1690 |
"not handled\n");
|
| 1691 |
break;
|
| 1692 |
case POWERPC_EXCP_SMI: /* System management interrupt */ |
| 1693 |
cpu_abort(env, "System management interrupt while in user mode. "
|
| 1694 |
"Aborting\n");
|
| 1695 |
break;
|
| 1696 |
case POWERPC_EXCP_THERM: /* Thermal interrupt */ |
| 1697 |
cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
|
| 1698 |
"Aborting\n");
|
| 1699 |
break;
|
| 1700 |
case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */ |
| 1701 |
cpu_abort(env, "Performance monitor exception not handled\n");
|
| 1702 |
break;
|
| 1703 |
case POWERPC_EXCP_VPUA: /* Vector assist exception */ |
| 1704 |
cpu_abort(env, "Vector assist exception not handled\n");
|
| 1705 |
break;
|
| 1706 |
case POWERPC_EXCP_SOFTP: /* Soft patch exception */ |
| 1707 |
cpu_abort(env, "Soft patch exception not handled\n");
|
| 1708 |
break;
|
| 1709 |
case POWERPC_EXCP_MAINT: /* Maintenance exception */ |
| 1710 |
cpu_abort(env, "Maintenance exception while in user mode. "
|
| 1711 |
"Aborting\n");
|
| 1712 |
break;
|
| 1713 |
case POWERPC_EXCP_STOP: /* stop translation */ |
| 1714 |
/* We did invalidate the instruction cache. Go on */
|
| 1715 |
break;
|
| 1716 |
case POWERPC_EXCP_BRANCH: /* branch instruction: */ |
| 1717 |
/* We just stopped because of a branch. Go on */
|
| 1718 |
break;
|
| 1719 |
case POWERPC_EXCP_SYSCALL_USER:
|
| 1720 |
/* system call in user-mode emulation */
|
| 1721 |
/* WARNING:
|
| 1722 |
* PPC ABI uses overflow flag in cr0 to signal an error
|
| 1723 |
* in syscalls.
|
| 1724 |
*/
|
| 1725 |
env->crf[0] &= ~0x1; |
| 1726 |
ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4], |
| 1727 |
env->gpr[5], env->gpr[6], env->gpr[7], |
| 1728 |
env->gpr[8], 0, 0); |
| 1729 |
if (ret == (target_ulong)(-TARGET_QEMU_ESIGRETURN)) {
|
| 1730 |
/* Returning from a successful sigreturn syscall.
|
| 1731 |
Avoid corrupting register state. */
|
| 1732 |
break;
|
| 1733 |
} |
| 1734 |
if (ret > (target_ulong)(-515)) { |
| 1735 |
env->crf[0] |= 0x1; |
| 1736 |
ret = -ret; |
| 1737 |
} |
| 1738 |
env->gpr[3] = ret;
|
| 1739 |
break;
|
| 1740 |
case POWERPC_EXCP_STCX:
|
| 1741 |
if (do_store_exclusive(env)) {
|
| 1742 |
info.si_signo = TARGET_SIGSEGV; |
| 1743 |
info.si_errno = 0;
|
| 1744 |
info.si_code = TARGET_SEGV_MAPERR; |
| 1745 |
info._sifields._sigfault._addr = env->nip; |
| 1746 |
queue_signal(env, info.si_signo, &info); |
| 1747 |
} |
| 1748 |
break;
|
| 1749 |
case EXCP_DEBUG:
|
| 1750 |
{
|
| 1751 |
int sig;
|
| 1752 |
|
| 1753 |
sig = gdb_handlesig(env, TARGET_SIGTRAP); |
| 1754 |
if (sig) {
|
| 1755 |
info.si_signo = sig; |
| 1756 |
info.si_errno = 0;
|
| 1757 |
info.si_code = TARGET_TRAP_BRKPT; |
| 1758 |
queue_signal(env, info.si_signo, &info); |
| 1759 |
} |
| 1760 |
} |
| 1761 |
break;
|
| 1762 |
case EXCP_INTERRUPT:
|
| 1763 |
/* just indicate that signals should be handled asap */
|
| 1764 |
break;
|
| 1765 |
default:
|
| 1766 |
cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
|
| 1767 |
break;
|
| 1768 |
} |
| 1769 |
process_pending_signals(env); |
| 1770 |
} |
| 1771 |
} |
| 1772 |
#endif
|
| 1773 |
|
| 1774 |
#ifdef TARGET_MIPS
|
| 1775 |
|
| 1776 |
#define MIPS_SYS(name, args) args,
|
| 1777 |
|
| 1778 |
static const uint8_t mips_syscall_args[] = { |
| 1779 |
MIPS_SYS(sys_syscall , 8) /* 4000 */ |
| 1780 |
MIPS_SYS(sys_exit , 1)
|
| 1781 |
MIPS_SYS(sys_fork , 0)
|
| 1782 |
MIPS_SYS(sys_read , 3)
|
| 1783 |
MIPS_SYS(sys_write , 3)
|
| 1784 |
MIPS_SYS(sys_open , 3) /* 4005 */ |
| 1785 |
MIPS_SYS(sys_close , 1)
|
| 1786 |
MIPS_SYS(sys_waitpid , 3)
|
| 1787 |
MIPS_SYS(sys_creat , 2)
|
| 1788 |
MIPS_SYS(sys_link , 2)
|
| 1789 |
MIPS_SYS(sys_unlink , 1) /* 4010 */ |
| 1790 |
MIPS_SYS(sys_execve , 0)
|
| 1791 |
MIPS_SYS(sys_chdir , 1)
|
| 1792 |
MIPS_SYS(sys_time , 1)
|
| 1793 |
MIPS_SYS(sys_mknod , 3)
|
| 1794 |
MIPS_SYS(sys_chmod , 2) /* 4015 */ |
| 1795 |
MIPS_SYS(sys_lchown , 3)
|
| 1796 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 1797 |
MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */ |
| 1798 |
MIPS_SYS(sys_lseek , 3)
|
| 1799 |
MIPS_SYS(sys_getpid , 0) /* 4020 */ |
| 1800 |
MIPS_SYS(sys_mount , 5)
|
| 1801 |
MIPS_SYS(sys_oldumount , 1)
|
| 1802 |
MIPS_SYS(sys_setuid , 1)
|
| 1803 |
MIPS_SYS(sys_getuid , 0)
|
| 1804 |
MIPS_SYS(sys_stime , 1) /* 4025 */ |
| 1805 |
MIPS_SYS(sys_ptrace , 4)
|
| 1806 |
MIPS_SYS(sys_alarm , 1)
|
| 1807 |
MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */ |
| 1808 |
MIPS_SYS(sys_pause , 0)
|
| 1809 |
MIPS_SYS(sys_utime , 2) /* 4030 */ |
| 1810 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 1811 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 1812 |
MIPS_SYS(sys_access , 2)
|
| 1813 |
MIPS_SYS(sys_nice , 1)
|
| 1814 |
MIPS_SYS(sys_ni_syscall , 0) /* 4035 */ |
| 1815 |
MIPS_SYS(sys_sync , 0)
|
| 1816 |
MIPS_SYS(sys_kill , 2)
|
| 1817 |
MIPS_SYS(sys_rename , 2)
|
| 1818 |
MIPS_SYS(sys_mkdir , 2)
|
| 1819 |
MIPS_SYS(sys_rmdir , 1) /* 4040 */ |
| 1820 |
MIPS_SYS(sys_dup , 1)
|
| 1821 |
MIPS_SYS(sys_pipe , 0)
|
| 1822 |
MIPS_SYS(sys_times , 1)
|
| 1823 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 1824 |
MIPS_SYS(sys_brk , 1) /* 4045 */ |
| 1825 |
MIPS_SYS(sys_setgid , 1)
|
| 1826 |
MIPS_SYS(sys_getgid , 0)
|
| 1827 |
MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */ |
| 1828 |
MIPS_SYS(sys_geteuid , 0)
|
| 1829 |
MIPS_SYS(sys_getegid , 0) /* 4050 */ |
| 1830 |
MIPS_SYS(sys_acct , 0)
|
| 1831 |
MIPS_SYS(sys_umount , 2)
|
| 1832 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 1833 |
MIPS_SYS(sys_ioctl , 3)
|
| 1834 |
MIPS_SYS(sys_fcntl , 3) /* 4055 */ |
| 1835 |
MIPS_SYS(sys_ni_syscall , 2)
|
| 1836 |
MIPS_SYS(sys_setpgid , 2)
|
| 1837 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 1838 |
MIPS_SYS(sys_olduname , 1)
|
| 1839 |
MIPS_SYS(sys_umask , 1) /* 4060 */ |
| 1840 |
MIPS_SYS(sys_chroot , 1)
|
| 1841 |
MIPS_SYS(sys_ustat , 2)
|
| 1842 |
MIPS_SYS(sys_dup2 , 2)
|
| 1843 |
MIPS_SYS(sys_getppid , 0)
|
| 1844 |
MIPS_SYS(sys_getpgrp , 0) /* 4065 */ |
| 1845 |
MIPS_SYS(sys_setsid , 0)
|
| 1846 |
MIPS_SYS(sys_sigaction , 3)
|
| 1847 |
MIPS_SYS(sys_sgetmask , 0)
|
| 1848 |
MIPS_SYS(sys_ssetmask , 1)
|
| 1849 |
MIPS_SYS(sys_setreuid , 2) /* 4070 */ |
| 1850 |
MIPS_SYS(sys_setregid , 2)
|
| 1851 |
MIPS_SYS(sys_sigsuspend , 0)
|
| 1852 |
MIPS_SYS(sys_sigpending , 1)
|
| 1853 |
MIPS_SYS(sys_sethostname , 2)
|
| 1854 |
MIPS_SYS(sys_setrlimit , 2) /* 4075 */ |
| 1855 |
MIPS_SYS(sys_getrlimit , 2)
|
| 1856 |
MIPS_SYS(sys_getrusage , 2)
|
| 1857 |
MIPS_SYS(sys_gettimeofday, 2)
|
| 1858 |
MIPS_SYS(sys_settimeofday, 2)
|
| 1859 |
MIPS_SYS(sys_getgroups , 2) /* 4080 */ |
| 1860 |
MIPS_SYS(sys_setgroups , 2)
|
| 1861 |
MIPS_SYS(sys_ni_syscall , 0) /* old_select */ |
| 1862 |
MIPS_SYS(sys_symlink , 2)
|
| 1863 |
MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */ |
| 1864 |
MIPS_SYS(sys_readlink , 3) /* 4085 */ |
| 1865 |
MIPS_SYS(sys_uselib , 1)
|
| 1866 |
MIPS_SYS(sys_swapon , 2)
|
| 1867 |
MIPS_SYS(sys_reboot , 3)
|
| 1868 |
MIPS_SYS(old_readdir , 3)
|
| 1869 |
MIPS_SYS(old_mmap , 6) /* 4090 */ |
| 1870 |
MIPS_SYS(sys_munmap , 2)
|
| 1871 |
MIPS_SYS(sys_truncate , 2)
|
| 1872 |
MIPS_SYS(sys_ftruncate , 2)
|
| 1873 |
MIPS_SYS(sys_fchmod , 2)
|
| 1874 |
MIPS_SYS(sys_fchown , 3) /* 4095 */ |
| 1875 |
MIPS_SYS(sys_getpriority , 2)
|
| 1876 |
MIPS_SYS(sys_setpriority , 3)
|
| 1877 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 1878 |
MIPS_SYS(sys_statfs , 2)
|
| 1879 |
MIPS_SYS(sys_fstatfs , 2) /* 4100 */ |
| 1880 |
MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */ |
| 1881 |
MIPS_SYS(sys_socketcall , 2)
|
| 1882 |
MIPS_SYS(sys_syslog , 3)
|
| 1883 |
MIPS_SYS(sys_setitimer , 3)
|
| 1884 |
MIPS_SYS(sys_getitimer , 2) /* 4105 */ |
| 1885 |
MIPS_SYS(sys_newstat , 2)
|
| 1886 |
MIPS_SYS(sys_newlstat , 2)
|
| 1887 |
MIPS_SYS(sys_newfstat , 2)
|
| 1888 |
MIPS_SYS(sys_uname , 1)
|
| 1889 |
MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */ |
| 1890 |
MIPS_SYS(sys_vhangup , 0)
|
| 1891 |
MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */ |
| 1892 |
MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */ |
| 1893 |
MIPS_SYS(sys_wait4 , 4)
|
| 1894 |
MIPS_SYS(sys_swapoff , 1) /* 4115 */ |
| 1895 |
MIPS_SYS(sys_sysinfo , 1)
|
| 1896 |
MIPS_SYS(sys_ipc , 6)
|
| 1897 |
MIPS_SYS(sys_fsync , 1)
|
| 1898 |
MIPS_SYS(sys_sigreturn , 0)
|
| 1899 |
MIPS_SYS(sys_clone , 6) /* 4120 */ |
| 1900 |
MIPS_SYS(sys_setdomainname, 2)
|
| 1901 |
MIPS_SYS(sys_newuname , 1)
|
| 1902 |
MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */ |
| 1903 |
MIPS_SYS(sys_adjtimex , 1)
|
| 1904 |
MIPS_SYS(sys_mprotect , 3) /* 4125 */ |
| 1905 |
MIPS_SYS(sys_sigprocmask , 3)
|
| 1906 |
MIPS_SYS(sys_ni_syscall , 0) /* was create_module */ |
| 1907 |
MIPS_SYS(sys_init_module , 5)
|
| 1908 |
MIPS_SYS(sys_delete_module, 1)
|
| 1909 |
MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */ |
| 1910 |
MIPS_SYS(sys_quotactl , 0)
|
| 1911 |
MIPS_SYS(sys_getpgid , 1)
|
| 1912 |
MIPS_SYS(sys_fchdir , 1)
|
| 1913 |
MIPS_SYS(sys_bdflush , 2)
|
| 1914 |
MIPS_SYS(sys_sysfs , 3) /* 4135 */ |
| 1915 |
MIPS_SYS(sys_personality , 1)
|
| 1916 |
MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */ |
| 1917 |
MIPS_SYS(sys_setfsuid , 1)
|
| 1918 |
MIPS_SYS(sys_setfsgid , 1)
|
| 1919 |
MIPS_SYS(sys_llseek , 5) /* 4140 */ |
| 1920 |
MIPS_SYS(sys_getdents , 3)
|
| 1921 |
MIPS_SYS(sys_select , 5)
|
| 1922 |
MIPS_SYS(sys_flock , 2)
|
| 1923 |
MIPS_SYS(sys_msync , 3)
|
| 1924 |
MIPS_SYS(sys_readv , 3) /* 4145 */ |
| 1925 |
MIPS_SYS(sys_writev , 3)
|
| 1926 |
MIPS_SYS(sys_cacheflush , 3)
|
| 1927 |
MIPS_SYS(sys_cachectl , 3)
|
| 1928 |
MIPS_SYS(sys_sysmips , 4)
|
| 1929 |
MIPS_SYS(sys_ni_syscall , 0) /* 4150 */ |
| 1930 |
MIPS_SYS(sys_getsid , 1)
|
| 1931 |
MIPS_SYS(sys_fdatasync , 0)
|
| 1932 |
MIPS_SYS(sys_sysctl , 1)
|
| 1933 |
MIPS_SYS(sys_mlock , 2)
|
| 1934 |
MIPS_SYS(sys_munlock , 2) /* 4155 */ |
| 1935 |
MIPS_SYS(sys_mlockall , 1)
|
| 1936 |
MIPS_SYS(sys_munlockall , 0)
|
| 1937 |
MIPS_SYS(sys_sched_setparam, 2)
|
| 1938 |
MIPS_SYS(sys_sched_getparam, 2)
|
| 1939 |
MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */ |
| 1940 |
MIPS_SYS(sys_sched_getscheduler, 1)
|
| 1941 |
MIPS_SYS(sys_sched_yield , 0)
|
| 1942 |
MIPS_SYS(sys_sched_get_priority_max, 1)
|
| 1943 |
MIPS_SYS(sys_sched_get_priority_min, 1)
|
| 1944 |
MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */ |
| 1945 |
MIPS_SYS(sys_nanosleep, 2)
|
| 1946 |
MIPS_SYS(sys_mremap , 4)
|
| 1947 |
MIPS_SYS(sys_accept , 3)
|
| 1948 |
MIPS_SYS(sys_bind , 3)
|
| 1949 |
MIPS_SYS(sys_connect , 3) /* 4170 */ |
| 1950 |
MIPS_SYS(sys_getpeername , 3)
|
| 1951 |
MIPS_SYS(sys_getsockname , 3)
|
| 1952 |
MIPS_SYS(sys_getsockopt , 5)
|
| 1953 |
MIPS_SYS(sys_listen , 2)
|
| 1954 |
MIPS_SYS(sys_recv , 4) /* 4175 */ |
| 1955 |
MIPS_SYS(sys_recvfrom , 6)
|
| 1956 |
MIPS_SYS(sys_recvmsg , 3)
|
| 1957 |
MIPS_SYS(sys_send , 4)
|
| 1958 |
MIPS_SYS(sys_sendmsg , 3)
|
| 1959 |
MIPS_SYS(sys_sendto , 6) /* 4180 */ |
| 1960 |
MIPS_SYS(sys_setsockopt , 5)
|
| 1961 |
MIPS_SYS(sys_shutdown , 2)
|
| 1962 |
MIPS_SYS(sys_socket , 3)
|
| 1963 |
MIPS_SYS(sys_socketpair , 4)
|
| 1964 |
MIPS_SYS(sys_setresuid , 3) /* 4185 */ |
| 1965 |
MIPS_SYS(sys_getresuid , 3)
|
| 1966 |
MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */ |
| 1967 |
MIPS_SYS(sys_poll , 3)
|
| 1968 |
MIPS_SYS(sys_nfsservctl , 3)
|
| 1969 |
MIPS_SYS(sys_setresgid , 3) /* 4190 */ |
| 1970 |
MIPS_SYS(sys_getresgid , 3)
|
| 1971 |
MIPS_SYS(sys_prctl , 5)
|
| 1972 |
MIPS_SYS(sys_rt_sigreturn, 0)
|
| 1973 |
MIPS_SYS(sys_rt_sigaction, 4)
|
| 1974 |
MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */ |
| 1975 |
MIPS_SYS(sys_rt_sigpending, 2)
|
| 1976 |
MIPS_SYS(sys_rt_sigtimedwait, 4)
|
| 1977 |
MIPS_SYS(sys_rt_sigqueueinfo, 3)
|
| 1978 |
MIPS_SYS(sys_rt_sigsuspend, 0)
|
| 1979 |
MIPS_SYS(sys_pread64 , 6) /* 4200 */ |
| 1980 |
MIPS_SYS(sys_pwrite64 , 6)
|
| 1981 |
MIPS_SYS(sys_chown , 3)
|
| 1982 |
MIPS_SYS(sys_getcwd , 2)
|
| 1983 |
MIPS_SYS(sys_capget , 2)
|
| 1984 |
MIPS_SYS(sys_capset , 2) /* 4205 */ |
| 1985 |
MIPS_SYS(sys_sigaltstack , 2)
|
| 1986 |
MIPS_SYS(sys_sendfile , 4)
|
| 1987 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 1988 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 1989 |
MIPS_SYS(sys_mmap2 , 6) /* 4210 */ |
| 1990 |
MIPS_SYS(sys_truncate64 , 4)
|
| 1991 |
MIPS_SYS(sys_ftruncate64 , 4)
|
| 1992 |
MIPS_SYS(sys_stat64 , 2)
|
| 1993 |
MIPS_SYS(sys_lstat64 , 2)
|
| 1994 |
MIPS_SYS(sys_fstat64 , 2) /* 4215 */ |
| 1995 |
MIPS_SYS(sys_pivot_root , 2)
|
| 1996 |
MIPS_SYS(sys_mincore , 3)
|
| 1997 |
MIPS_SYS(sys_madvise , 3)
|
| 1998 |
MIPS_SYS(sys_getdents64 , 3)
|
| 1999 |
MIPS_SYS(sys_fcntl64 , 3) /* 4220 */ |
| 2000 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 2001 |
MIPS_SYS(sys_gettid , 0)
|
| 2002 |
MIPS_SYS(sys_readahead , 5)
|
| 2003 |
MIPS_SYS(sys_setxattr , 5)
|
| 2004 |
MIPS_SYS(sys_lsetxattr , 5) /* 4225 */ |
| 2005 |
MIPS_SYS(sys_fsetxattr , 5)
|
| 2006 |
MIPS_SYS(sys_getxattr , 4)
|
| 2007 |
MIPS_SYS(sys_lgetxattr , 4)
|
| 2008 |
MIPS_SYS(sys_fgetxattr , 4)
|
| 2009 |
MIPS_SYS(sys_listxattr , 3) /* 4230 */ |
| 2010 |
MIPS_SYS(sys_llistxattr , 3)
|
| 2011 |
MIPS_SYS(sys_flistxattr , 3)
|
| 2012 |
MIPS_SYS(sys_removexattr , 2)
|
| 2013 |
MIPS_SYS(sys_lremovexattr, 2)
|
| 2014 |
MIPS_SYS(sys_fremovexattr, 2) /* 4235 */ |
| 2015 |
MIPS_SYS(sys_tkill , 2)
|
| 2016 |
MIPS_SYS(sys_sendfile64 , 5)
|
| 2017 |
MIPS_SYS(sys_futex , 2)
|
| 2018 |
MIPS_SYS(sys_sched_setaffinity, 3)
|
| 2019 |
MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */ |
| 2020 |
MIPS_SYS(sys_io_setup , 2)
|
| 2021 |
MIPS_SYS(sys_io_destroy , 1)
|
| 2022 |
MIPS_SYS(sys_io_getevents, 5)
|
| 2023 |
MIPS_SYS(sys_io_submit , 3)
|
| 2024 |
MIPS_SYS(sys_io_cancel , 3) /* 4245 */ |
| 2025 |
MIPS_SYS(sys_exit_group , 1)
|
| 2026 |
MIPS_SYS(sys_lookup_dcookie, 3)
|
| 2027 |
MIPS_SYS(sys_epoll_create, 1)
|
| 2028 |
MIPS_SYS(sys_epoll_ctl , 4)
|
| 2029 |
MIPS_SYS(sys_epoll_wait , 3) /* 4250 */ |
| 2030 |
MIPS_SYS(sys_remap_file_pages, 5)
|
| 2031 |
MIPS_SYS(sys_set_tid_address, 1)
|
| 2032 |
MIPS_SYS(sys_restart_syscall, 0)
|
| 2033 |
MIPS_SYS(sys_fadvise64_64, 7)
|
| 2034 |
MIPS_SYS(sys_statfs64 , 3) /* 4255 */ |
| 2035 |
MIPS_SYS(sys_fstatfs64 , 2)
|
| 2036 |
MIPS_SYS(sys_timer_create, 3)
|
| 2037 |
MIPS_SYS(sys_timer_settime, 4)
|
| 2038 |
MIPS_SYS(sys_timer_gettime, 2)
|
| 2039 |
MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */ |
| 2040 |
MIPS_SYS(sys_timer_delete, 1)
|
| 2041 |
MIPS_SYS(sys_clock_settime, 2)
|
| 2042 |
MIPS_SYS(sys_clock_gettime, 2)
|
| 2043 |
MIPS_SYS(sys_clock_getres, 2)
|
| 2044 |
MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */ |
| 2045 |
MIPS_SYS(sys_tgkill , 3)
|
| 2046 |
MIPS_SYS(sys_utimes , 2)
|
| 2047 |
MIPS_SYS(sys_mbind , 4)
|
| 2048 |
MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */ |
| 2049 |
MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */ |
| 2050 |
MIPS_SYS(sys_mq_open , 4)
|
| 2051 |
MIPS_SYS(sys_mq_unlink , 1)
|
| 2052 |
MIPS_SYS(sys_mq_timedsend, 5)
|
| 2053 |
MIPS_SYS(sys_mq_timedreceive, 5)
|
| 2054 |
MIPS_SYS(sys_mq_notify , 2) /* 4275 */ |
| 2055 |
MIPS_SYS(sys_mq_getsetattr, 3)
|
| 2056 |
MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */ |
| 2057 |
MIPS_SYS(sys_waitid , 4)
|
| 2058 |
MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */ |
| 2059 |
MIPS_SYS(sys_add_key , 5)
|
| 2060 |
MIPS_SYS(sys_request_key, 4)
|
| 2061 |
MIPS_SYS(sys_keyctl , 5)
|
| 2062 |
MIPS_SYS(sys_set_thread_area, 1)
|
| 2063 |
MIPS_SYS(sys_inotify_init, 0)
|
| 2064 |
MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */ |
| 2065 |
MIPS_SYS(sys_inotify_rm_watch, 2)
|
| 2066 |
MIPS_SYS(sys_migrate_pages, 4)
|
| 2067 |
MIPS_SYS(sys_openat, 4)
|
| 2068 |
MIPS_SYS(sys_mkdirat, 3)
|
| 2069 |
MIPS_SYS(sys_mknodat, 4) /* 4290 */ |
| 2070 |
MIPS_SYS(sys_fchownat, 5)
|
| 2071 |
MIPS_SYS(sys_futimesat, 3)
|
| 2072 |
MIPS_SYS(sys_fstatat64, 4)
|
| 2073 |
MIPS_SYS(sys_unlinkat, 3)
|
| 2074 |
MIPS_SYS(sys_renameat, 4) /* 4295 */ |
| 2075 |
MIPS_SYS(sys_linkat, 5)
|
| 2076 |
MIPS_SYS(sys_symlinkat, 3)
|
| 2077 |
MIPS_SYS(sys_readlinkat, 4)
|
| 2078 |
MIPS_SYS(sys_fchmodat, 3)
|
| 2079 |
MIPS_SYS(sys_faccessat, 3) /* 4300 */ |
| 2080 |
MIPS_SYS(sys_pselect6, 6)
|
| 2081 |
MIPS_SYS(sys_ppoll, 5)
|
| 2082 |
MIPS_SYS(sys_unshare, 1)
|
| 2083 |
MIPS_SYS(sys_splice, 4)
|
| 2084 |
MIPS_SYS(sys_sync_file_range, 7) /* 4305 */ |
| 2085 |
MIPS_SYS(sys_tee, 4)
|
| 2086 |
MIPS_SYS(sys_vmsplice, 4)
|
| 2087 |
MIPS_SYS(sys_move_pages, 6)
|
| 2088 |
MIPS_SYS(sys_set_robust_list, 2)
|
| 2089 |
MIPS_SYS(sys_get_robust_list, 3) /* 4310 */ |
| 2090 |
MIPS_SYS(sys_kexec_load, 4)
|
| 2091 |
MIPS_SYS(sys_getcpu, 3)
|
| 2092 |
MIPS_SYS(sys_epoll_pwait, 6)
|
| 2093 |
MIPS_SYS(sys_ioprio_set, 3)
|
| 2094 |
MIPS_SYS(sys_ioprio_get, 2)
|
| 2095 |
MIPS_SYS(sys_utimensat, 4)
|
| 2096 |
MIPS_SYS(sys_signalfd, 3)
|
| 2097 |
MIPS_SYS(sys_ni_syscall, 0) /* was timerfd */ |
| 2098 |
MIPS_SYS(sys_eventfd, 1)
|
| 2099 |
MIPS_SYS(sys_fallocate, 6) /* 4320 */ |
| 2100 |
MIPS_SYS(sys_timerfd_create, 2)
|
| 2101 |
MIPS_SYS(sys_timerfd_gettime, 2)
|
| 2102 |
MIPS_SYS(sys_timerfd_settime, 4)
|
| 2103 |
MIPS_SYS(sys_signalfd4, 4)
|
| 2104 |
MIPS_SYS(sys_eventfd2, 2) /* 4325 */ |
| 2105 |
MIPS_SYS(sys_epoll_create1, 1)
|
| 2106 |
MIPS_SYS(sys_dup3, 3)
|
| 2107 |
MIPS_SYS(sys_pipe2, 2)
|
| 2108 |
MIPS_SYS(sys_inotify_init1, 1)
|
| 2109 |
MIPS_SYS(sys_preadv, 6) /* 4330 */ |
| 2110 |
MIPS_SYS(sys_pwritev, 6)
|
| 2111 |
MIPS_SYS(sys_rt_tgsigqueueinfo, 4)
|
| 2112 |
MIPS_SYS(sys_perf_event_open, 5)
|
| 2113 |
MIPS_SYS(sys_accept4, 4)
|
| 2114 |
MIPS_SYS(sys_recvmmsg, 5) /* 4335 */ |
| 2115 |
MIPS_SYS(sys_fanotify_init, 2)
|
| 2116 |
MIPS_SYS(sys_fanotify_mark, 6)
|
| 2117 |
MIPS_SYS(sys_prlimit64, 4)
|
| 2118 |
MIPS_SYS(sys_name_to_handle_at, 5)
|
| 2119 |
MIPS_SYS(sys_open_by_handle_at, 3) /* 4340 */ |
| 2120 |
MIPS_SYS(sys_clock_adjtime, 2)
|
| 2121 |
MIPS_SYS(sys_syncfs, 1)
|
| 2122 |
}; |
| 2123 |
|
| 2124 |
#undef MIPS_SYS
|
| 2125 |
|
| 2126 |
static int do_store_exclusive(CPUMIPSState *env) |
| 2127 |
{
|
| 2128 |
target_ulong addr; |
| 2129 |
target_ulong page_addr; |
| 2130 |
target_ulong val; |
| 2131 |
int flags;
|
| 2132 |
int segv = 0; |
| 2133 |
int reg;
|
| 2134 |
int d;
|
| 2135 |
|
| 2136 |
addr = env->lladdr; |
| 2137 |
page_addr = addr & TARGET_PAGE_MASK; |
| 2138 |
start_exclusive(); |
| 2139 |
mmap_lock(); |
| 2140 |
flags = page_get_flags(page_addr); |
| 2141 |
if ((flags & PAGE_READ) == 0) { |
| 2142 |
segv = 1;
|
| 2143 |
} else {
|
| 2144 |
reg = env->llreg & 0x1f;
|
| 2145 |
d = (env->llreg & 0x20) != 0; |
| 2146 |
if (d) {
|
| 2147 |
segv = get_user_s64(val, addr); |
| 2148 |
} else {
|
| 2149 |
segv = get_user_s32(val, addr); |
| 2150 |
} |
| 2151 |
if (!segv) {
|
| 2152 |
if (val != env->llval) {
|
| 2153 |
env->active_tc.gpr[reg] = 0;
|
| 2154 |
} else {
|
| 2155 |
if (d) {
|
| 2156 |
segv = put_user_u64(env->llnewval, addr); |
| 2157 |
} else {
|
| 2158 |
segv = put_user_u32(env->llnewval, addr); |
| 2159 |
} |
| 2160 |
if (!segv) {
|
| 2161 |
env->active_tc.gpr[reg] = 1;
|
| 2162 |
} |
| 2163 |
} |
| 2164 |
} |
| 2165 |
} |
| 2166 |
env->lladdr = -1;
|
| 2167 |
if (!segv) {
|
| 2168 |
env->active_tc.PC += 4;
|
| 2169 |
} |
| 2170 |
mmap_unlock(); |
| 2171 |
end_exclusive(); |
| 2172 |
return segv;
|
| 2173 |
} |
| 2174 |
|
| 2175 |
void cpu_loop(CPUMIPSState *env)
|
| 2176 |
{
|
| 2177 |
target_siginfo_t info; |
| 2178 |
int trapnr, ret;
|
| 2179 |
unsigned int syscall_num; |
| 2180 |
|
| 2181 |
for(;;) {
|
| 2182 |
cpu_exec_start(env); |
| 2183 |
trapnr = cpu_mips_exec(env); |
| 2184 |
cpu_exec_end(env); |
| 2185 |
switch(trapnr) {
|
| 2186 |
case EXCP_SYSCALL:
|
| 2187 |
syscall_num = env->active_tc.gpr[2] - 4000; |
| 2188 |
env->active_tc.PC += 4;
|
| 2189 |
if (syscall_num >= sizeof(mips_syscall_args)) { |
| 2190 |
ret = -TARGET_ENOSYS; |
| 2191 |
} else {
|
| 2192 |
int nb_args;
|
| 2193 |
abi_ulong sp_reg; |
| 2194 |
abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0; |
| 2195 |
|
| 2196 |
nb_args = mips_syscall_args[syscall_num]; |
| 2197 |
sp_reg = env->active_tc.gpr[29];
|
| 2198 |
switch (nb_args) {
|
| 2199 |
/* these arguments are taken from the stack */
|
| 2200 |
case 8: |
| 2201 |
if ((ret = get_user_ual(arg8, sp_reg + 28)) != 0) { |
| 2202 |
goto done_syscall;
|
| 2203 |
} |
| 2204 |
case 7: |
| 2205 |
if ((ret = get_user_ual(arg7, sp_reg + 24)) != 0) { |
| 2206 |
goto done_syscall;
|
| 2207 |
} |
| 2208 |
case 6: |
| 2209 |
if ((ret = get_user_ual(arg6, sp_reg + 20)) != 0) { |
| 2210 |
goto done_syscall;
|
| 2211 |
} |
| 2212 |
case 5: |
| 2213 |
if ((ret = get_user_ual(arg5, sp_reg + 16)) != 0) { |
| 2214 |
goto done_syscall;
|
| 2215 |
} |
| 2216 |
default:
|
| 2217 |
break;
|
| 2218 |
} |
| 2219 |
ret = do_syscall(env, env->active_tc.gpr[2],
|
| 2220 |
env->active_tc.gpr[4],
|
| 2221 |
env->active_tc.gpr[5],
|
| 2222 |
env->active_tc.gpr[6],
|
| 2223 |
env->active_tc.gpr[7],
|
| 2224 |
arg5, arg6, arg7, arg8); |
| 2225 |
} |
| 2226 |
done_syscall:
|
| 2227 |
if (ret == -TARGET_QEMU_ESIGRETURN) {
|
| 2228 |
/* Returning from a successful sigreturn syscall.
|
| 2229 |
Avoid clobbering register state. */
|
| 2230 |
break;
|
| 2231 |
} |
| 2232 |
if ((unsigned int)ret >= (unsigned int)(-1133)) { |
| 2233 |
env->active_tc.gpr[7] = 1; /* error flag */ |
| 2234 |
ret = -ret; |
| 2235 |
} else {
|
| 2236 |
env->active_tc.gpr[7] = 0; /* error flag */ |
| 2237 |
} |
| 2238 |
env->active_tc.gpr[2] = ret;
|
| 2239 |
break;
|
| 2240 |
case EXCP_TLBL:
|
| 2241 |
case EXCP_TLBS:
|
| 2242 |
case EXCP_AdEL:
|
| 2243 |
case EXCP_AdES:
|
| 2244 |
info.si_signo = TARGET_SIGSEGV; |
| 2245 |
info.si_errno = 0;
|
| 2246 |
/* XXX: check env->error_code */
|
| 2247 |
info.si_code = TARGET_SEGV_MAPERR; |
| 2248 |
info._sifields._sigfault._addr = env->CP0_BadVAddr; |
| 2249 |
queue_signal(env, info.si_signo, &info); |
| 2250 |
break;
|
| 2251 |
case EXCP_CpU:
|
| 2252 |
case EXCP_RI:
|
| 2253 |
info.si_signo = TARGET_SIGILL; |
| 2254 |
info.si_errno = 0;
|
| 2255 |
info.si_code = 0;
|
| 2256 |
queue_signal(env, info.si_signo, &info); |
| 2257 |
break;
|
| 2258 |
case EXCP_INTERRUPT:
|
| 2259 |
/* just indicate that signals should be handled asap */
|
| 2260 |
break;
|
| 2261 |
case EXCP_DEBUG:
|
| 2262 |
{
|
| 2263 |
int sig;
|
| 2264 |
|
| 2265 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 2266 |
if (sig)
|
| 2267 |
{
|
| 2268 |
info.si_signo = sig; |
| 2269 |
info.si_errno = 0;
|
| 2270 |
info.si_code = TARGET_TRAP_BRKPT; |
| 2271 |
queue_signal(env, info.si_signo, &info); |
| 2272 |
} |
| 2273 |
} |
| 2274 |
break;
|
| 2275 |
case EXCP_SC:
|
| 2276 |
if (do_store_exclusive(env)) {
|
| 2277 |
info.si_signo = TARGET_SIGSEGV; |
| 2278 |
info.si_errno = 0;
|
| 2279 |
info.si_code = TARGET_SEGV_MAPERR; |
| 2280 |
info._sifields._sigfault._addr = env->active_tc.PC; |
| 2281 |
queue_signal(env, info.si_signo, &info); |
| 2282 |
} |
| 2283 |
break;
|
| 2284 |
default:
|
| 2285 |
// error:
|
| 2286 |
fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
|
| 2287 |
trapnr); |
| 2288 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 2289 |
abort(); |
| 2290 |
} |
| 2291 |
process_pending_signals(env); |
| 2292 |
} |
| 2293 |
} |
| 2294 |
#endif
|
| 2295 |
|
| 2296 |
#ifdef TARGET_OPENRISC
|
| 2297 |
|
| 2298 |
void cpu_loop(CPUOpenRISCState *env)
|
| 2299 |
{
|
| 2300 |
int trapnr, gdbsig;
|
| 2301 |
|
| 2302 |
for (;;) {
|
| 2303 |
trapnr = cpu_exec(env); |
| 2304 |
gdbsig = 0;
|
| 2305 |
|
| 2306 |
switch (trapnr) {
|
| 2307 |
case EXCP_RESET:
|
| 2308 |
qemu_log("\nReset request, exit, pc is %#x\n", env->pc);
|
| 2309 |
exit(1);
|
| 2310 |
break;
|
| 2311 |
case EXCP_BUSERR:
|
| 2312 |
qemu_log("\nBus error, exit, pc is %#x\n", env->pc);
|
| 2313 |
gdbsig = SIGBUS; |
| 2314 |
break;
|
| 2315 |
case EXCP_DPF:
|
| 2316 |
case EXCP_IPF:
|
| 2317 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 2318 |
gdbsig = TARGET_SIGSEGV; |
| 2319 |
break;
|
| 2320 |
case EXCP_TICK:
|
| 2321 |
qemu_log("\nTick time interrupt pc is %#x\n", env->pc);
|
| 2322 |
break;
|
| 2323 |
case EXCP_ALIGN:
|
| 2324 |
qemu_log("\nAlignment pc is %#x\n", env->pc);
|
| 2325 |
gdbsig = SIGBUS; |
| 2326 |
break;
|
| 2327 |
case EXCP_ILLEGAL:
|
| 2328 |
qemu_log("\nIllegal instructionpc is %#x\n", env->pc);
|
| 2329 |
gdbsig = SIGILL; |
| 2330 |
break;
|
| 2331 |
case EXCP_INT:
|
| 2332 |
qemu_log("\nExternal interruptpc is %#x\n", env->pc);
|
| 2333 |
break;
|
| 2334 |
case EXCP_DTLBMISS:
|
| 2335 |
case EXCP_ITLBMISS:
|
| 2336 |
qemu_log("\nTLB miss\n");
|
| 2337 |
break;
|
| 2338 |
case EXCP_RANGE:
|
| 2339 |
qemu_log("\nRange\n");
|
| 2340 |
gdbsig = SIGSEGV; |
| 2341 |
break;
|
| 2342 |
case EXCP_SYSCALL:
|
| 2343 |
env->pc += 4; /* 0xc00; */ |
| 2344 |
env->gpr[11] = do_syscall(env,
|
| 2345 |
env->gpr[11], /* return value */ |
| 2346 |
env->gpr[3], /* r3 - r7 are params */ |
| 2347 |
env->gpr[4],
|
| 2348 |
env->gpr[5],
|
| 2349 |
env->gpr[6],
|
| 2350 |
env->gpr[7],
|
| 2351 |
env->gpr[8], 0, 0); |
| 2352 |
break;
|
| 2353 |
case EXCP_FPE:
|
| 2354 |
qemu_log("\nFloating point error\n");
|
| 2355 |
break;
|
| 2356 |
case EXCP_TRAP:
|
| 2357 |
qemu_log("\nTrap\n");
|
| 2358 |
gdbsig = SIGTRAP; |
| 2359 |
break;
|
| 2360 |
case EXCP_NR:
|
| 2361 |
qemu_log("\nNR\n");
|
| 2362 |
break;
|
| 2363 |
default:
|
| 2364 |
qemu_log("\nqemu: unhandled CPU exception %#x - aborting\n",
|
| 2365 |
trapnr); |
| 2366 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 2367 |
gdbsig = TARGET_SIGILL; |
| 2368 |
break;
|
| 2369 |
} |
| 2370 |
if (gdbsig) {
|
| 2371 |
gdb_handlesig(env, gdbsig); |
| 2372 |
if (gdbsig != TARGET_SIGTRAP) {
|
| 2373 |
exit(1);
|
| 2374 |
} |
| 2375 |
} |
| 2376 |
|
| 2377 |
process_pending_signals(env); |
| 2378 |
} |
| 2379 |
} |
| 2380 |
|
| 2381 |
#endif /* TARGET_OPENRISC */ |
| 2382 |
|
| 2383 |
#ifdef TARGET_SH4
|
| 2384 |
void cpu_loop(CPUSH4State *env)
|
| 2385 |
{
|
| 2386 |
int trapnr, ret;
|
| 2387 |
target_siginfo_t info; |
| 2388 |
|
| 2389 |
while (1) { |
| 2390 |
trapnr = cpu_sh4_exec (env); |
| 2391 |
|
| 2392 |
switch (trapnr) {
|
| 2393 |
case 0x160: |
| 2394 |
env->pc += 2;
|
| 2395 |
ret = do_syscall(env, |
| 2396 |
env->gregs[3],
|
| 2397 |
env->gregs[4],
|
| 2398 |
env->gregs[5],
|
| 2399 |
env->gregs[6],
|
| 2400 |
env->gregs[7],
|
| 2401 |
env->gregs[0],
|
| 2402 |
env->gregs[1],
|
| 2403 |
0, 0); |
| 2404 |
env->gregs[0] = ret;
|
| 2405 |
break;
|
| 2406 |
case EXCP_INTERRUPT:
|
| 2407 |
/* just indicate that signals should be handled asap */
|
| 2408 |
break;
|
| 2409 |
case EXCP_DEBUG:
|
| 2410 |
{
|
| 2411 |
int sig;
|
| 2412 |
|
| 2413 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 2414 |
if (sig)
|
| 2415 |
{
|
| 2416 |
info.si_signo = sig; |
| 2417 |
info.si_errno = 0;
|
| 2418 |
info.si_code = TARGET_TRAP_BRKPT; |
| 2419 |
queue_signal(env, info.si_signo, &info); |
| 2420 |
} |
| 2421 |
} |
| 2422 |
break;
|
| 2423 |
case 0xa0: |
| 2424 |
case 0xc0: |
| 2425 |
info.si_signo = SIGSEGV; |
| 2426 |
info.si_errno = 0;
|
| 2427 |
info.si_code = TARGET_SEGV_MAPERR; |
| 2428 |
info._sifields._sigfault._addr = env->tea; |
| 2429 |
queue_signal(env, info.si_signo, &info); |
| 2430 |
break;
|
| 2431 |
|
| 2432 |
default:
|
| 2433 |
printf ("Unhandled trap: 0x%x\n", trapnr);
|
| 2434 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 2435 |
exit (1);
|
| 2436 |
} |
| 2437 |
process_pending_signals (env); |
| 2438 |
} |
| 2439 |
} |
| 2440 |
#endif
|
| 2441 |
|
| 2442 |
#ifdef TARGET_CRIS
|
| 2443 |
void cpu_loop(CPUCRISState *env)
|
| 2444 |
{
|
| 2445 |
int trapnr, ret;
|
| 2446 |
target_siginfo_t info; |
| 2447 |
|
| 2448 |
while (1) { |
| 2449 |
trapnr = cpu_cris_exec (env); |
| 2450 |
switch (trapnr) {
|
| 2451 |
case 0xaa: |
| 2452 |
{
|
| 2453 |
info.si_signo = SIGSEGV; |
| 2454 |
info.si_errno = 0;
|
| 2455 |
/* XXX: check env->error_code */
|
| 2456 |
info.si_code = TARGET_SEGV_MAPERR; |
| 2457 |
info._sifields._sigfault._addr = env->pregs[PR_EDA]; |
| 2458 |
queue_signal(env, info.si_signo, &info); |
| 2459 |
} |
| 2460 |
break;
|
| 2461 |
case EXCP_INTERRUPT:
|
| 2462 |
/* just indicate that signals should be handled asap */
|
| 2463 |
break;
|
| 2464 |
case EXCP_BREAK:
|
| 2465 |
ret = do_syscall(env, |
| 2466 |
env->regs[9],
|
| 2467 |
env->regs[10],
|
| 2468 |
env->regs[11],
|
| 2469 |
env->regs[12],
|
| 2470 |
env->regs[13],
|
| 2471 |
env->pregs[7],
|
| 2472 |
env->pregs[11],
|
| 2473 |
0, 0); |
| 2474 |
env->regs[10] = ret;
|
| 2475 |
break;
|
| 2476 |
case EXCP_DEBUG:
|
| 2477 |
{
|
| 2478 |
int sig;
|
| 2479 |
|
| 2480 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 2481 |
if (sig)
|
| 2482 |
{
|
| 2483 |
info.si_signo = sig; |
| 2484 |
info.si_errno = 0;
|
| 2485 |
info.si_code = TARGET_TRAP_BRKPT; |
| 2486 |
queue_signal(env, info.si_signo, &info); |
| 2487 |
} |
| 2488 |
} |
| 2489 |
break;
|
| 2490 |
default:
|
| 2491 |
printf ("Unhandled trap: 0x%x\n", trapnr);
|
| 2492 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 2493 |
exit (1);
|
| 2494 |
} |
| 2495 |
process_pending_signals (env); |
| 2496 |
} |
| 2497 |
} |
| 2498 |
#endif
|
| 2499 |
|
| 2500 |
#ifdef TARGET_MICROBLAZE
|
| 2501 |
void cpu_loop(CPUMBState *env)
|
| 2502 |
{
|
| 2503 |
int trapnr, ret;
|
| 2504 |
target_siginfo_t info; |
| 2505 |
|
| 2506 |
while (1) { |
| 2507 |
trapnr = cpu_mb_exec (env); |
| 2508 |
switch (trapnr) {
|
| 2509 |
case 0xaa: |
| 2510 |
{
|
| 2511 |
info.si_signo = SIGSEGV; |
| 2512 |
info.si_errno = 0;
|
| 2513 |
/* XXX: check env->error_code */
|
| 2514 |
info.si_code = TARGET_SEGV_MAPERR; |
| 2515 |
info._sifields._sigfault._addr = 0;
|
| 2516 |
queue_signal(env, info.si_signo, &info); |
| 2517 |
} |
| 2518 |
break;
|
| 2519 |
case EXCP_INTERRUPT:
|
| 2520 |
/* just indicate that signals should be handled asap */
|
| 2521 |
break;
|
| 2522 |
case EXCP_BREAK:
|
| 2523 |
/* Return address is 4 bytes after the call. */
|
| 2524 |
env->regs[14] += 4; |
| 2525 |
ret = do_syscall(env, |
| 2526 |
env->regs[12],
|
| 2527 |
env->regs[5],
|
| 2528 |
env->regs[6],
|
| 2529 |
env->regs[7],
|
| 2530 |
env->regs[8],
|
| 2531 |
env->regs[9],
|
| 2532 |
env->regs[10],
|
| 2533 |
0, 0); |
| 2534 |
env->regs[3] = ret;
|
| 2535 |
env->sregs[SR_PC] = env->regs[14];
|
| 2536 |
break;
|
| 2537 |
case EXCP_HW_EXCP:
|
| 2538 |
env->regs[17] = env->sregs[SR_PC] + 4; |
| 2539 |
if (env->iflags & D_FLAG) {
|
| 2540 |
env->sregs[SR_ESR] |= 1 << 12; |
| 2541 |
env->sregs[SR_PC] -= 4;
|
| 2542 |
/* FIXME: if branch was immed, replay the imm as well. */
|
| 2543 |
} |
| 2544 |
|
| 2545 |
env->iflags &= ~(IMM_FLAG | D_FLAG); |
| 2546 |
|
| 2547 |
switch (env->sregs[SR_ESR] & 31) { |
| 2548 |
case ESR_EC_DIVZERO:
|
| 2549 |
info.si_signo = SIGFPE; |
| 2550 |
info.si_errno = 0;
|
| 2551 |
info.si_code = TARGET_FPE_FLTDIV; |
| 2552 |
info._sifields._sigfault._addr = 0;
|
| 2553 |
queue_signal(env, info.si_signo, &info); |
| 2554 |
break;
|
| 2555 |
case ESR_EC_FPU:
|
| 2556 |
info.si_signo = SIGFPE; |
| 2557 |
info.si_errno = 0;
|
| 2558 |
if (env->sregs[SR_FSR] & FSR_IO) {
|
| 2559 |
info.si_code = TARGET_FPE_FLTINV; |
| 2560 |
} |
| 2561 |
if (env->sregs[SR_FSR] & FSR_DZ) {
|
| 2562 |
info.si_code = TARGET_FPE_FLTDIV; |
| 2563 |
} |
| 2564 |
info._sifields._sigfault._addr = 0;
|
| 2565 |
queue_signal(env, info.si_signo, &info); |
| 2566 |
break;
|
| 2567 |
default:
|
| 2568 |
printf ("Unhandled hw-exception: 0x%x\n",
|
| 2569 |
env->sregs[SR_ESR] & ESR_EC_MASK); |
| 2570 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 2571 |
exit (1);
|
| 2572 |
break;
|
| 2573 |
} |
| 2574 |
break;
|
| 2575 |
case EXCP_DEBUG:
|
| 2576 |
{
|
| 2577 |
int sig;
|
| 2578 |
|
| 2579 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 2580 |
if (sig)
|
| 2581 |
{
|
| 2582 |
info.si_signo = sig; |
| 2583 |
info.si_errno = 0;
|
| 2584 |
info.si_code = TARGET_TRAP_BRKPT; |
| 2585 |
queue_signal(env, info.si_signo, &info); |
| 2586 |
} |
| 2587 |
} |
| 2588 |
break;
|
| 2589 |
default:
|
| 2590 |
printf ("Unhandled trap: 0x%x\n", trapnr);
|
| 2591 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 2592 |
exit (1);
|
| 2593 |
} |
| 2594 |
process_pending_signals (env); |
| 2595 |
} |
| 2596 |
} |
| 2597 |
#endif
|
| 2598 |
|
| 2599 |
#ifdef TARGET_M68K
|
| 2600 |
|
| 2601 |
void cpu_loop(CPUM68KState *env)
|
| 2602 |
{
|
| 2603 |
int trapnr;
|
| 2604 |
unsigned int n; |
| 2605 |
target_siginfo_t info; |
| 2606 |
TaskState *ts = env->opaque; |
| 2607 |
|
| 2608 |
for(;;) {
|
| 2609 |
trapnr = cpu_m68k_exec(env); |
| 2610 |
switch(trapnr) {
|
| 2611 |
case EXCP_ILLEGAL:
|
| 2612 |
{
|
| 2613 |
if (ts->sim_syscalls) {
|
| 2614 |
uint16_t nr; |
| 2615 |
nr = lduw(env->pc + 2);
|
| 2616 |
env->pc += 4;
|
| 2617 |
do_m68k_simcall(env, nr); |
| 2618 |
} else {
|
| 2619 |
goto do_sigill;
|
| 2620 |
} |
| 2621 |
} |
| 2622 |
break;
|
| 2623 |
case EXCP_HALT_INSN:
|
| 2624 |
/* Semihosing syscall. */
|
| 2625 |
env->pc += 4;
|
| 2626 |
do_m68k_semihosting(env, env->dregs[0]);
|
| 2627 |
break;
|
| 2628 |
case EXCP_LINEA:
|
| 2629 |
case EXCP_LINEF:
|
| 2630 |
case EXCP_UNSUPPORTED:
|
| 2631 |
do_sigill:
|
| 2632 |
info.si_signo = SIGILL; |
| 2633 |
info.si_errno = 0;
|
| 2634 |
info.si_code = TARGET_ILL_ILLOPN; |
| 2635 |
info._sifields._sigfault._addr = env->pc; |
| 2636 |
queue_signal(env, info.si_signo, &info); |
| 2637 |
break;
|
| 2638 |
case EXCP_TRAP0:
|
| 2639 |
{
|
| 2640 |
ts->sim_syscalls = 0;
|
| 2641 |
n = env->dregs[0];
|
| 2642 |
env->pc += 2;
|
| 2643 |
env->dregs[0] = do_syscall(env,
|
| 2644 |
n, |
| 2645 |
env->dregs[1],
|
| 2646 |
env->dregs[2],
|
| 2647 |
env->dregs[3],
|
| 2648 |
env->dregs[4],
|
| 2649 |
env->dregs[5],
|
| 2650 |
env->aregs[0],
|
| 2651 |
0, 0); |
| 2652 |
} |
| 2653 |
break;
|
| 2654 |
case EXCP_INTERRUPT:
|
| 2655 |
/* just indicate that signals should be handled asap */
|
| 2656 |
break;
|
| 2657 |
case EXCP_ACCESS:
|
| 2658 |
{
|
| 2659 |
info.si_signo = SIGSEGV; |
| 2660 |
info.si_errno = 0;
|
| 2661 |
/* XXX: check env->error_code */
|
| 2662 |
info.si_code = TARGET_SEGV_MAPERR; |
| 2663 |
info._sifields._sigfault._addr = env->mmu.ar; |
| 2664 |
queue_signal(env, info.si_signo, &info); |
| 2665 |
} |
| 2666 |
break;
|
| 2667 |
case EXCP_DEBUG:
|
| 2668 |
{
|
| 2669 |
int sig;
|
| 2670 |
|
| 2671 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 2672 |
if (sig)
|
| 2673 |
{
|
| 2674 |
info.si_signo = sig; |
| 2675 |
info.si_errno = 0;
|
| 2676 |
info.si_code = TARGET_TRAP_BRKPT; |
| 2677 |
queue_signal(env, info.si_signo, &info); |
| 2678 |
} |
| 2679 |
} |
| 2680 |
break;
|
| 2681 |
default:
|
| 2682 |
fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
|
| 2683 |
trapnr); |
| 2684 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 2685 |
abort(); |
| 2686 |
} |
| 2687 |
process_pending_signals(env); |
| 2688 |
} |
| 2689 |
} |
| 2690 |
#endif /* TARGET_M68K */ |
| 2691 |
|
| 2692 |
#ifdef TARGET_ALPHA
|
| 2693 |
static void do_store_exclusive(CPUAlphaState *env, int reg, int quad) |
| 2694 |
{
|
| 2695 |
target_ulong addr, val, tmp; |
| 2696 |
target_siginfo_t info; |
| 2697 |
int ret = 0; |
| 2698 |
|
| 2699 |
addr = env->lock_addr; |
| 2700 |
tmp = env->lock_st_addr; |
| 2701 |
env->lock_addr = -1;
|
| 2702 |
env->lock_st_addr = 0;
|
| 2703 |
|
| 2704 |
start_exclusive(); |
| 2705 |
mmap_lock(); |
| 2706 |
|
| 2707 |
if (addr == tmp) {
|
| 2708 |
if (quad ? get_user_s64(val, addr) : get_user_s32(val, addr)) {
|
| 2709 |
goto do_sigsegv;
|
| 2710 |
} |
| 2711 |
|
| 2712 |
if (val == env->lock_value) {
|
| 2713 |
tmp = env->ir[reg]; |
| 2714 |
if (quad ? put_user_u64(tmp, addr) : put_user_u32(tmp, addr)) {
|
| 2715 |
goto do_sigsegv;
|
| 2716 |
} |
| 2717 |
ret = 1;
|
| 2718 |
} |
| 2719 |
} |
| 2720 |
env->ir[reg] = ret; |
| 2721 |
env->pc += 4;
|
| 2722 |
|
| 2723 |
mmap_unlock(); |
| 2724 |
end_exclusive(); |
| 2725 |
return;
|
| 2726 |
|
| 2727 |
do_sigsegv:
|
| 2728 |
mmap_unlock(); |
| 2729 |
end_exclusive(); |
| 2730 |
|
| 2731 |
info.si_signo = TARGET_SIGSEGV; |
| 2732 |
info.si_errno = 0;
|
| 2733 |
info.si_code = TARGET_SEGV_MAPERR; |
| 2734 |
info._sifields._sigfault._addr = addr; |
| 2735 |
queue_signal(env, TARGET_SIGSEGV, &info); |
| 2736 |
} |
| 2737 |
|
| 2738 |
void cpu_loop(CPUAlphaState *env)
|
| 2739 |
{
|
| 2740 |
int trapnr;
|
| 2741 |
target_siginfo_t info; |
| 2742 |
abi_long sysret; |
| 2743 |
|
| 2744 |
while (1) { |
| 2745 |
trapnr = cpu_alpha_exec (env); |
| 2746 |
|
| 2747 |
/* All of the traps imply a transition through PALcode, which
|
| 2748 |
implies an REI instruction has been executed. Which means
|
| 2749 |
that the intr_flag should be cleared. */
|
| 2750 |
env->intr_flag = 0;
|
| 2751 |
|
| 2752 |
switch (trapnr) {
|
| 2753 |
case EXCP_RESET:
|
| 2754 |
fprintf(stderr, "Reset requested. Exit\n");
|
| 2755 |
exit(1);
|
| 2756 |
break;
|
| 2757 |
case EXCP_MCHK:
|
| 2758 |
fprintf(stderr, "Machine check exception. Exit\n");
|
| 2759 |
exit(1);
|
| 2760 |
break;
|
| 2761 |
case EXCP_SMP_INTERRUPT:
|
| 2762 |
case EXCP_CLK_INTERRUPT:
|
| 2763 |
case EXCP_DEV_INTERRUPT:
|
| 2764 |
fprintf(stderr, "External interrupt. Exit\n");
|
| 2765 |
exit(1);
|
| 2766 |
break;
|
| 2767 |
case EXCP_MMFAULT:
|
| 2768 |
env->lock_addr = -1;
|
| 2769 |
info.si_signo = TARGET_SIGSEGV; |
| 2770 |
info.si_errno = 0;
|
| 2771 |
info.si_code = (page_get_flags(env->trap_arg0) & PAGE_VALID |
| 2772 |
? TARGET_SEGV_ACCERR : TARGET_SEGV_MAPERR); |
| 2773 |
info._sifields._sigfault._addr = env->trap_arg0; |
| 2774 |
queue_signal(env, info.si_signo, &info); |
| 2775 |
break;
|
| 2776 |
case EXCP_UNALIGN:
|
| 2777 |
env->lock_addr = -1;
|
| 2778 |
info.si_signo = TARGET_SIGBUS; |
| 2779 |
info.si_errno = 0;
|
| 2780 |
info.si_code = TARGET_BUS_ADRALN; |
| 2781 |
info._sifields._sigfault._addr = env->trap_arg0; |
| 2782 |
queue_signal(env, info.si_signo, &info); |
| 2783 |
break;
|
| 2784 |
case EXCP_OPCDEC:
|
| 2785 |
do_sigill:
|
| 2786 |
env->lock_addr = -1;
|
| 2787 |
info.si_signo = TARGET_SIGILL; |
| 2788 |
info.si_errno = 0;
|
| 2789 |
info.si_code = TARGET_ILL_ILLOPC; |
| 2790 |
info._sifields._sigfault._addr = env->pc; |
| 2791 |
queue_signal(env, info.si_signo, &info); |
| 2792 |
break;
|
| 2793 |
case EXCP_ARITH:
|
| 2794 |
env->lock_addr = -1;
|
| 2795 |
info.si_signo = TARGET_SIGFPE; |
| 2796 |
info.si_errno = 0;
|
| 2797 |
info.si_code = TARGET_FPE_FLTINV; |
| 2798 |
info._sifields._sigfault._addr = env->pc; |
| 2799 |
queue_signal(env, info.si_signo, &info); |
| 2800 |
break;
|
| 2801 |
case EXCP_FEN:
|
| 2802 |
/* No-op. Linux simply re-enables the FPU. */
|
| 2803 |
break;
|
| 2804 |
case EXCP_CALL_PAL:
|
| 2805 |
env->lock_addr = -1;
|
| 2806 |
switch (env->error_code) {
|
| 2807 |
case 0x80: |
| 2808 |
/* BPT */
|
| 2809 |
info.si_signo = TARGET_SIGTRAP; |
| 2810 |
info.si_errno = 0;
|
| 2811 |
info.si_code = TARGET_TRAP_BRKPT; |
| 2812 |
info._sifields._sigfault._addr = env->pc; |
| 2813 |
queue_signal(env, info.si_signo, &info); |
| 2814 |
break;
|
| 2815 |
case 0x81: |
| 2816 |
/* BUGCHK */
|
| 2817 |
info.si_signo = TARGET_SIGTRAP; |
| 2818 |
info.si_errno = 0;
|
| 2819 |
info.si_code = 0;
|
| 2820 |
info._sifields._sigfault._addr = env->pc; |
| 2821 |
queue_signal(env, info.si_signo, &info); |
| 2822 |
break;
|
| 2823 |
case 0x83: |
| 2824 |
/* CALLSYS */
|
| 2825 |
trapnr = env->ir[IR_V0]; |
| 2826 |
sysret = do_syscall(env, trapnr, |
| 2827 |
env->ir[IR_A0], env->ir[IR_A1], |
| 2828 |
env->ir[IR_A2], env->ir[IR_A3], |
| 2829 |
env->ir[IR_A4], env->ir[IR_A5], |
| 2830 |
0, 0); |
| 2831 |
if (trapnr == TARGET_NR_sigreturn
|
| 2832 |
|| trapnr == TARGET_NR_rt_sigreturn) {
|
| 2833 |
break;
|
| 2834 |
} |
| 2835 |
/* Syscall writes 0 to V0 to bypass error check, similar
|
| 2836 |
to how this is handled internal to Linux kernel.
|
| 2837 |
(Ab)use trapnr temporarily as boolean indicating error. */
|
| 2838 |
trapnr = (env->ir[IR_V0] != 0 && sysret < 0); |
| 2839 |
env->ir[IR_V0] = (trapnr ? -sysret : sysret); |
| 2840 |
env->ir[IR_A3] = trapnr; |
| 2841 |
break;
|
| 2842 |
case 0x86: |
| 2843 |
/* IMB */
|
| 2844 |
/* ??? We can probably elide the code using page_unprotect
|
| 2845 |
that is checking for self-modifying code. Instead we
|
| 2846 |
could simply call tb_flush here. Until we work out the
|
| 2847 |
changes required to turn off the extra write protection,
|
| 2848 |
this can be a no-op. */
|
| 2849 |
break;
|
| 2850 |
case 0x9E: |
| 2851 |
/* RDUNIQUE */
|
| 2852 |
/* Handled in the translator for usermode. */
|
| 2853 |
abort(); |
| 2854 |
case 0x9F: |
| 2855 |
/* WRUNIQUE */
|
| 2856 |
/* Handled in the translator for usermode. */
|
| 2857 |
abort(); |
| 2858 |
case 0xAA: |
| 2859 |
/* GENTRAP */
|
| 2860 |
info.si_signo = TARGET_SIGFPE; |
| 2861 |
switch (env->ir[IR_A0]) {
|
| 2862 |
case TARGET_GEN_INTOVF:
|
| 2863 |
info.si_code = TARGET_FPE_INTOVF; |
| 2864 |
break;
|
| 2865 |
case TARGET_GEN_INTDIV:
|
| 2866 |
info.si_code = TARGET_FPE_INTDIV; |
| 2867 |
break;
|
| 2868 |
case TARGET_GEN_FLTOVF:
|
| 2869 |
info.si_code = TARGET_FPE_FLTOVF; |
| 2870 |
break;
|
| 2871 |
case TARGET_GEN_FLTUND:
|
| 2872 |
info.si_code = TARGET_FPE_FLTUND; |
| 2873 |
break;
|
| 2874 |
case TARGET_GEN_FLTINV:
|
| 2875 |
info.si_code = TARGET_FPE_FLTINV; |
| 2876 |
break;
|
| 2877 |
case TARGET_GEN_FLTINE:
|
| 2878 |
info.si_code = TARGET_FPE_FLTRES; |
| 2879 |
break;
|
| 2880 |
case TARGET_GEN_ROPRAND:
|
| 2881 |
info.si_code = 0;
|
| 2882 |
break;
|
| 2883 |
default:
|
| 2884 |
info.si_signo = TARGET_SIGTRAP; |
| 2885 |
info.si_code = 0;
|
| 2886 |
break;
|
| 2887 |
} |
| 2888 |
info.si_errno = 0;
|
| 2889 |
info._sifields._sigfault._addr = env->pc; |
| 2890 |
queue_signal(env, info.si_signo, &info); |
| 2891 |
break;
|
| 2892 |
default:
|
| 2893 |
goto do_sigill;
|
| 2894 |
} |
| 2895 |
break;
|
| 2896 |
case EXCP_DEBUG:
|
| 2897 |
info.si_signo = gdb_handlesig (env, TARGET_SIGTRAP); |
| 2898 |
if (info.si_signo) {
|
| 2899 |
env->lock_addr = -1;
|
| 2900 |
info.si_errno = 0;
|
| 2901 |
info.si_code = TARGET_TRAP_BRKPT; |
| 2902 |
queue_signal(env, info.si_signo, &info); |
| 2903 |
} |
| 2904 |
break;
|
| 2905 |
case EXCP_STL_C:
|
| 2906 |
case EXCP_STQ_C:
|
| 2907 |
do_store_exclusive(env, env->error_code, trapnr - EXCP_STL_C); |
| 2908 |
break;
|
| 2909 |
case EXCP_INTERRUPT:
|
| 2910 |
/* Just indicate that signals should be handled asap. */
|
| 2911 |
break;
|
| 2912 |
default:
|
| 2913 |
printf ("Unhandled trap: 0x%x\n", trapnr);
|
| 2914 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 2915 |
exit (1);
|
| 2916 |
} |
| 2917 |
process_pending_signals (env); |
| 2918 |
} |
| 2919 |
} |
| 2920 |
#endif /* TARGET_ALPHA */ |
| 2921 |
|
| 2922 |
#ifdef TARGET_S390X
|
| 2923 |
void cpu_loop(CPUS390XState *env)
|
| 2924 |
{
|
| 2925 |
int trapnr;
|
| 2926 |
target_siginfo_t info; |
| 2927 |
|
| 2928 |
while (1) { |
| 2929 |
trapnr = cpu_s390x_exec (env); |
| 2930 |
|
| 2931 |
switch (trapnr) {
|
| 2932 |
case EXCP_INTERRUPT:
|
| 2933 |
/* just indicate that signals should be handled asap */
|
| 2934 |
break;
|
| 2935 |
case EXCP_DEBUG:
|
| 2936 |
{
|
| 2937 |
int sig;
|
| 2938 |
|
| 2939 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 2940 |
if (sig) {
|
| 2941 |
info.si_signo = sig; |
| 2942 |
info.si_errno = 0;
|
| 2943 |
info.si_code = TARGET_TRAP_BRKPT; |
| 2944 |
queue_signal(env, info.si_signo, &info); |
| 2945 |
} |
| 2946 |
} |
| 2947 |
break;
|
| 2948 |
case EXCP_SVC:
|
| 2949 |
{
|
| 2950 |
int n = env->int_svc_code;
|
| 2951 |
if (!n) {
|
| 2952 |
/* syscalls > 255 */
|
| 2953 |
n = env->regs[1];
|
| 2954 |
} |
| 2955 |
env->psw.addr += env->int_svc_ilc; |
| 2956 |
env->regs[2] = do_syscall(env, n,
|
| 2957 |
env->regs[2],
|
| 2958 |
env->regs[3],
|
| 2959 |
env->regs[4],
|
| 2960 |
env->regs[5],
|
| 2961 |
env->regs[6],
|
| 2962 |
env->regs[7],
|
| 2963 |
0, 0); |
| 2964 |
} |
| 2965 |
break;
|
| 2966 |
case EXCP_ADDR:
|
| 2967 |
{
|
| 2968 |
info.si_signo = SIGSEGV; |
| 2969 |
info.si_errno = 0;
|
| 2970 |
/* XXX: check env->error_code */
|
| 2971 |
info.si_code = TARGET_SEGV_MAPERR; |
| 2972 |
info._sifields._sigfault._addr = env->__excp_addr; |
| 2973 |
queue_signal(env, info.si_signo, &info); |
| 2974 |
} |
| 2975 |
break;
|
| 2976 |
case EXCP_SPEC:
|
| 2977 |
{
|
| 2978 |
fprintf(stderr,"specification exception insn 0x%08x%04x\n", ldl(env->psw.addr), lduw(env->psw.addr + 4)); |
| 2979 |
info.si_signo = SIGILL; |
| 2980 |
info.si_errno = 0;
|
| 2981 |
info.si_code = TARGET_ILL_ILLOPC; |
| 2982 |
info._sifields._sigfault._addr = env->__excp_addr; |
| 2983 |
queue_signal(env, info.si_signo, &info); |
| 2984 |
} |
| 2985 |
break;
|
| 2986 |
default:
|
| 2987 |
printf ("Unhandled trap: 0x%x\n", trapnr);
|
| 2988 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 2989 |
exit (1);
|
| 2990 |
} |
| 2991 |
process_pending_signals (env); |
| 2992 |
} |
| 2993 |
} |
| 2994 |
|
| 2995 |
#endif /* TARGET_S390X */ |
| 2996 |
|
| 2997 |
THREAD CPUArchState *thread_env; |
| 2998 |
|
| 2999 |
void task_settid(TaskState *ts)
|
| 3000 |
{
|
| 3001 |
if (ts->ts_tid == 0) { |
| 3002 |
#ifdef CONFIG_USE_NPTL
|
| 3003 |
ts->ts_tid = (pid_t)syscall(SYS_gettid); |
| 3004 |
#else
|
| 3005 |
/* when no threads are used, tid becomes pid */
|
| 3006 |
ts->ts_tid = getpid(); |
| 3007 |
#endif
|
| 3008 |
} |
| 3009 |
} |
| 3010 |
|
| 3011 |
void stop_all_tasks(void) |
| 3012 |
{
|
| 3013 |
/*
|
| 3014 |
* We trust that when using NPTL, start_exclusive()
|
| 3015 |
* handles thread stopping correctly.
|
| 3016 |
*/
|
| 3017 |
start_exclusive(); |
| 3018 |
} |
| 3019 |
|
| 3020 |
/* Assumes contents are already zeroed. */
|
| 3021 |
void init_task_state(TaskState *ts)
|
| 3022 |
{
|
| 3023 |
int i;
|
| 3024 |
|
| 3025 |
ts->used = 1;
|
| 3026 |
ts->first_free = ts->sigqueue_table; |
| 3027 |
for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) { |
| 3028 |
ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1];
|
| 3029 |
} |
| 3030 |
ts->sigqueue_table[i].next = NULL;
|
| 3031 |
} |
| 3032 |
|
| 3033 |
static void handle_arg_help(const char *arg) |
| 3034 |
{
|
| 3035 |
usage(); |
| 3036 |
} |
| 3037 |
|
| 3038 |
static void handle_arg_log(const char *arg) |
| 3039 |
{
|
| 3040 |
int mask;
|
| 3041 |
const CPULogItem *item;
|
| 3042 |
|
| 3043 |
mask = cpu_str_to_log_mask(arg); |
| 3044 |
if (!mask) {
|
| 3045 |
printf("Log items (comma separated):\n");
|
| 3046 |
for (item = cpu_log_items; item->mask != 0; item++) { |
| 3047 |
printf("%-10s %s\n", item->name, item->help);
|
| 3048 |
} |
| 3049 |
exit(1);
|
| 3050 |
} |
| 3051 |
cpu_set_log(mask); |
| 3052 |
} |
| 3053 |
|
| 3054 |
static void handle_arg_log_filename(const char *arg) |
| 3055 |
{
|
| 3056 |
cpu_set_log_filename(arg); |
| 3057 |
} |
| 3058 |
|
| 3059 |
static void handle_arg_set_env(const char *arg) |
| 3060 |
{
|
| 3061 |
char *r, *p, *token;
|
| 3062 |
r = p = strdup(arg); |
| 3063 |
while ((token = strsep(&p, ",")) != NULL) { |
| 3064 |
if (envlist_setenv(envlist, token) != 0) { |
| 3065 |
usage(); |
| 3066 |
} |
| 3067 |
} |
| 3068 |
free(r); |
| 3069 |
} |
| 3070 |
|
| 3071 |
static void handle_arg_unset_env(const char *arg) |
| 3072 |
{
|
| 3073 |
char *r, *p, *token;
|
| 3074 |
r = p = strdup(arg); |
| 3075 |
while ((token = strsep(&p, ",")) != NULL) { |
| 3076 |
if (envlist_unsetenv(envlist, token) != 0) { |
| 3077 |
usage(); |
| 3078 |
} |
| 3079 |
} |
| 3080 |
free(r); |
| 3081 |
} |
| 3082 |
|
| 3083 |
static void handle_arg_argv0(const char *arg) |
| 3084 |
{
|
| 3085 |
argv0 = strdup(arg); |
| 3086 |
} |
| 3087 |
|
| 3088 |
static void handle_arg_stack_size(const char *arg) |
| 3089 |
{
|
| 3090 |
char *p;
|
| 3091 |
guest_stack_size = strtoul(arg, &p, 0);
|
| 3092 |
if (guest_stack_size == 0) { |
| 3093 |
usage(); |
| 3094 |
} |
| 3095 |
|
| 3096 |
if (*p == 'M') { |
| 3097 |
guest_stack_size *= 1024 * 1024; |
| 3098 |
} else if (*p == 'k' || *p == 'K') { |
| 3099 |
guest_stack_size *= 1024;
|
| 3100 |
} |
| 3101 |
} |
| 3102 |
|
| 3103 |
static void handle_arg_ld_prefix(const char *arg) |
| 3104 |
{
|
| 3105 |
interp_prefix = strdup(arg); |
| 3106 |
} |
| 3107 |
|
| 3108 |
static void handle_arg_pagesize(const char *arg) |
| 3109 |
{
|
| 3110 |
qemu_host_page_size = atoi(arg); |
| 3111 |
if (qemu_host_page_size == 0 || |
| 3112 |
(qemu_host_page_size & (qemu_host_page_size - 1)) != 0) { |
| 3113 |
fprintf(stderr, "page size must be a power of two\n");
|
| 3114 |
exit(1);
|
| 3115 |
} |
| 3116 |
} |
| 3117 |
|
| 3118 |
static void handle_arg_gdb(const char *arg) |
| 3119 |
{
|
| 3120 |
gdbstub_port = atoi(arg); |
| 3121 |
} |
| 3122 |
|
| 3123 |
static void handle_arg_uname(const char *arg) |
| 3124 |
{
|
| 3125 |
qemu_uname_release = strdup(arg); |
| 3126 |
} |
| 3127 |
|
| 3128 |
static void handle_arg_cpu(const char *arg) |
| 3129 |
{
|
| 3130 |
cpu_model = strdup(arg); |
| 3131 |
if (cpu_model == NULL || is_help_option(cpu_model)) { |
| 3132 |
/* XXX: implement xxx_cpu_list for targets that still miss it */
|
| 3133 |
#if defined(cpu_list)
|
| 3134 |
cpu_list(stdout, &fprintf); |
| 3135 |
#endif
|
| 3136 |
exit(1);
|
| 3137 |
} |
| 3138 |
} |
| 3139 |
|
| 3140 |
#if defined(CONFIG_USE_GUEST_BASE)
|
| 3141 |
static void handle_arg_guest_base(const char *arg) |
| 3142 |
{
|
| 3143 |
guest_base = strtol(arg, NULL, 0); |
| 3144 |
have_guest_base = 1;
|
| 3145 |
} |
| 3146 |
|
| 3147 |
static void handle_arg_reserved_va(const char *arg) |
| 3148 |
{
|
| 3149 |
char *p;
|
| 3150 |
int shift = 0; |
| 3151 |
reserved_va = strtoul(arg, &p, 0);
|
| 3152 |
switch (*p) {
|
| 3153 |
case 'k': |
| 3154 |
case 'K': |
| 3155 |
shift = 10;
|
| 3156 |
break;
|
| 3157 |
case 'M': |
| 3158 |
shift = 20;
|
| 3159 |
break;
|
| 3160 |
case 'G': |
| 3161 |
shift = 30;
|
| 3162 |
break;
|
| 3163 |
} |
| 3164 |
if (shift) {
|
| 3165 |
unsigned long unshifted = reserved_va; |
| 3166 |
p++; |
| 3167 |
reserved_va <<= shift; |
| 3168 |
if (((reserved_va >> shift) != unshifted)
|
| 3169 |
#if HOST_LONG_BITS > TARGET_VIRT_ADDR_SPACE_BITS
|
| 3170 |
|| (reserved_va > (1ul << TARGET_VIRT_ADDR_SPACE_BITS))
|
| 3171 |
#endif
|
| 3172 |
) {
|
| 3173 |
fprintf(stderr, "Reserved virtual address too big\n");
|
| 3174 |
exit(1);
|
| 3175 |
} |
| 3176 |
} |
| 3177 |
if (*p) {
|
| 3178 |
fprintf(stderr, "Unrecognised -R size suffix '%s'\n", p);
|
| 3179 |
exit(1);
|
| 3180 |
} |
| 3181 |
} |
| 3182 |
#endif
|
| 3183 |
|
| 3184 |
static void handle_arg_singlestep(const char *arg) |
| 3185 |
{
|
| 3186 |
singlestep = 1;
|
| 3187 |
} |
| 3188 |
|
| 3189 |
static void handle_arg_strace(const char *arg) |
| 3190 |
{
|
| 3191 |
do_strace = 1;
|
| 3192 |
} |
| 3193 |
|
| 3194 |
static void handle_arg_version(const char *arg) |
| 3195 |
{
|
| 3196 |
printf("qemu-" TARGET_ARCH " version " QEMU_VERSION QEMU_PKGVERSION |
| 3197 |
", Copyright (c) 2003-2008 Fabrice Bellard\n");
|
| 3198 |
exit(0);
|
| 3199 |
} |
| 3200 |
|
| 3201 |
struct qemu_argument {
|
| 3202 |
const char *argv; |
| 3203 |
const char *env; |
| 3204 |
bool has_arg;
|
| 3205 |
void (*handle_opt)(const char *arg); |
| 3206 |
const char *example; |
| 3207 |
const char *help; |
| 3208 |
}; |
| 3209 |
|
| 3210 |
static const struct qemu_argument arg_table[] = { |
| 3211 |
{"h", "", false, handle_arg_help,
|
| 3212 |
"", "print this help"}, |
| 3213 |
{"g", "QEMU_GDB", true, handle_arg_gdb,
|
| 3214 |
"port", "wait gdb connection to 'port'"}, |
| 3215 |
{"L", "QEMU_LD_PREFIX", true, handle_arg_ld_prefix,
|
| 3216 |
"path", "set the elf interpreter prefix to 'path'"}, |
| 3217 |
{"s", "QEMU_STACK_SIZE", true, handle_arg_stack_size,
|
| 3218 |
"size", "set the stack size to 'size' bytes"}, |
| 3219 |
{"cpu", "QEMU_CPU", true, handle_arg_cpu,
|
| 3220 |
"model", "select CPU (-cpu help for list)"}, |
| 3221 |
{"E", "QEMU_SET_ENV", true, handle_arg_set_env,
|
| 3222 |
"var=value", "sets targets environment variable (see below)"}, |
| 3223 |
{"U", "QEMU_UNSET_ENV", true, handle_arg_unset_env,
|
| 3224 |
"var", "unsets targets environment variable (see below)"}, |
| 3225 |
{"0", "QEMU_ARGV0", true, handle_arg_argv0,
|
| 3226 |
"argv0", "forces target process argv[0] to be 'argv0'"}, |
| 3227 |
{"r", "QEMU_UNAME", true, handle_arg_uname,
|
| 3228 |
"uname", "set qemu uname release string to 'uname'"}, |
| 3229 |
#if defined(CONFIG_USE_GUEST_BASE)
|
| 3230 |
{"B", "QEMU_GUEST_BASE", true, handle_arg_guest_base,
|
| 3231 |
"address", "set guest_base address to 'address'"}, |
| 3232 |
{"R", "QEMU_RESERVED_VA", true, handle_arg_reserved_va,
|
| 3233 |
"size", "reserve 'size' bytes for guest virtual address space"}, |
| 3234 |
#endif
|
| 3235 |
{"d", "QEMU_LOG", true, handle_arg_log,
|
| 3236 |
"options", "activate log"}, |
| 3237 |
{"D", "QEMU_LOG_FILENAME", true, handle_arg_log_filename,
|
| 3238 |
"logfile", "override default logfile location"}, |
| 3239 |
{"p", "QEMU_PAGESIZE", true, handle_arg_pagesize,
|
| 3240 |
"pagesize", "set the host page size to 'pagesize'"}, |
| 3241 |
{"singlestep", "QEMU_SINGLESTEP", false, handle_arg_singlestep,
|
| 3242 |
"", "run in singlestep mode"}, |
| 3243 |
{"strace", "QEMU_STRACE", false, handle_arg_strace,
|
| 3244 |
"", "log system calls"}, |
| 3245 |
{"version", "QEMU_VERSION", false, handle_arg_version,
|
| 3246 |
"", "display version information and exit"}, |
| 3247 |
{NULL, NULL, false, NULL, NULL, NULL}
|
| 3248 |
}; |
| 3249 |
|
| 3250 |
static void usage(void) |
| 3251 |
{
|
| 3252 |
const struct qemu_argument *arginfo; |
| 3253 |
int maxarglen;
|
| 3254 |
int maxenvlen;
|
| 3255 |
|
| 3256 |
printf("usage: qemu-" TARGET_ARCH " [options] program [arguments...]\n" |
| 3257 |
"Linux CPU emulator (compiled for " TARGET_ARCH " emulation)\n" |
| 3258 |
"\n"
|
| 3259 |
"Options and associated environment variables:\n"
|
| 3260 |
"\n");
|
| 3261 |
|
| 3262 |
maxarglen = maxenvlen = 0;
|
| 3263 |
|
| 3264 |
for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) { |
| 3265 |
if (strlen(arginfo->env) > maxenvlen) {
|
| 3266 |
maxenvlen = strlen(arginfo->env); |
| 3267 |
} |
| 3268 |
if (strlen(arginfo->argv) > maxarglen) {
|
| 3269 |
maxarglen = strlen(arginfo->argv); |
| 3270 |
} |
| 3271 |
} |
| 3272 |
|
| 3273 |
printf("%-*s%-*sDescription\n", maxarglen+3, "Argument", |
| 3274 |
maxenvlen+1, "Env-variable"); |
| 3275 |
|
| 3276 |
for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) { |
| 3277 |
if (arginfo->has_arg) {
|
| 3278 |
printf("-%s %-*s %-*s %s\n", arginfo->argv,
|
| 3279 |
(int)(maxarglen-strlen(arginfo->argv)), arginfo->example,
|
| 3280 |
maxenvlen, arginfo->env, arginfo->help); |
| 3281 |
} else {
|
| 3282 |
printf("-%-*s %-*s %s\n", maxarglen+1, arginfo->argv, |
| 3283 |
maxenvlen, arginfo->env, |
| 3284 |
arginfo->help); |
| 3285 |
} |
| 3286 |
} |
| 3287 |
|
| 3288 |
printf("\n"
|
| 3289 |
"Defaults:\n"
|
| 3290 |
"QEMU_LD_PREFIX = %s\n"
|
| 3291 |
"QEMU_STACK_SIZE = %ld byte\n"
|
| 3292 |
"QEMU_LOG = %s\n",
|
| 3293 |
interp_prefix, |
| 3294 |
guest_stack_size, |
| 3295 |
DEBUG_LOGFILE); |
| 3296 |
|
| 3297 |
printf("\n"
|
| 3298 |
"You can use -E and -U options or the QEMU_SET_ENV and\n"
|
| 3299 |
"QEMU_UNSET_ENV environment variables to set and unset\n"
|
| 3300 |
"environment variables for the target process.\n"
|
| 3301 |
"It is possible to provide several variables by separating them\n"
|
| 3302 |
"by commas in getsubopt(3) style. Additionally it is possible to\n"
|
| 3303 |
"provide the -E and -U options multiple times.\n"
|
| 3304 |
"The following lines are equivalent:\n"
|
| 3305 |
" -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n"
|
| 3306 |
" -E var1=val2,var2=val2 -U LD_PRELOAD,LD_DEBUG\n"
|
| 3307 |
" QEMU_SET_ENV=var1=val2,var2=val2 QEMU_UNSET_ENV=LD_PRELOAD,LD_DEBUG\n"
|
| 3308 |
"Note that if you provide several changes to a single variable\n"
|
| 3309 |
"the last change will stay in effect.\n");
|
| 3310 |
|
| 3311 |
exit(1);
|
| 3312 |
} |
| 3313 |
|
| 3314 |
static int parse_args(int argc, char **argv) |
| 3315 |
{
|
| 3316 |
const char *r; |
| 3317 |
int optind;
|
| 3318 |
const struct qemu_argument *arginfo; |
| 3319 |
|
| 3320 |
for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) { |
| 3321 |
if (arginfo->env == NULL) { |
| 3322 |
continue;
|
| 3323 |
} |
| 3324 |
|
| 3325 |
r = getenv(arginfo->env); |
| 3326 |
if (r != NULL) { |
| 3327 |
arginfo->handle_opt(r); |
| 3328 |
} |
| 3329 |
} |
| 3330 |
|
| 3331 |
optind = 1;
|
| 3332 |
for (;;) {
|
| 3333 |
if (optind >= argc) {
|
| 3334 |
break;
|
| 3335 |
} |
| 3336 |
r = argv[optind]; |
| 3337 |
if (r[0] != '-') { |
| 3338 |
break;
|
| 3339 |
} |
| 3340 |
optind++; |
| 3341 |
r++; |
| 3342 |
if (!strcmp(r, "-")) { |
| 3343 |
break;
|
| 3344 |
} |
| 3345 |
|
| 3346 |
for (arginfo = arg_table; arginfo->handle_opt != NULL; arginfo++) { |
| 3347 |
if (!strcmp(r, arginfo->argv)) {
|
| 3348 |
if (arginfo->has_arg) {
|
| 3349 |
if (optind >= argc) {
|
| 3350 |
usage(); |
| 3351 |
} |
| 3352 |
arginfo->handle_opt(argv[optind]); |
| 3353 |
optind++; |
| 3354 |
} else {
|
| 3355 |
arginfo->handle_opt(NULL);
|
| 3356 |
} |
| 3357 |
break;
|
| 3358 |
} |
| 3359 |
} |
| 3360 |
|
| 3361 |
/* no option matched the current argv */
|
| 3362 |
if (arginfo->handle_opt == NULL) { |
| 3363 |
usage(); |
| 3364 |
} |
| 3365 |
} |
| 3366 |
|
| 3367 |
if (optind >= argc) {
|
| 3368 |
usage(); |
| 3369 |
} |
| 3370 |
|
| 3371 |
filename = argv[optind]; |
| 3372 |
exec_path = argv[optind]; |
| 3373 |
|
| 3374 |
return optind;
|
| 3375 |
} |
| 3376 |
|
| 3377 |
int main(int argc, char **argv, char **envp) |
| 3378 |
{
|
| 3379 |
const char *log_file = DEBUG_LOGFILE; |
| 3380 |
struct target_pt_regs regs1, *regs = ®s1;
|
| 3381 |
struct image_info info1, *info = &info1;
|
| 3382 |
struct linux_binprm bprm;
|
| 3383 |
TaskState *ts; |
| 3384 |
CPUArchState *env; |
| 3385 |
int optind;
|
| 3386 |
char **target_environ, **wrk;
|
| 3387 |
char **target_argv;
|
| 3388 |
int target_argc;
|
| 3389 |
int i;
|
| 3390 |
int ret;
|
| 3391 |
|
| 3392 |
module_call_init(MODULE_INIT_QOM); |
| 3393 |
|
| 3394 |
qemu_cache_utils_init(envp); |
| 3395 |
|
| 3396 |
if ((envlist = envlist_create()) == NULL) { |
| 3397 |
(void) fprintf(stderr, "Unable to allocate envlist\n"); |
| 3398 |
exit(1);
|
| 3399 |
} |
| 3400 |
|
| 3401 |
/* add current environment into the list */
|
| 3402 |
for (wrk = environ; *wrk != NULL; wrk++) { |
| 3403 |
(void) envlist_setenv(envlist, *wrk);
|
| 3404 |
} |
| 3405 |
|
| 3406 |
/* Read the stack limit from the kernel. If it's "unlimited",
|
| 3407 |
then we can do little else besides use the default. */
|
| 3408 |
{
|
| 3409 |
struct rlimit lim;
|
| 3410 |
if (getrlimit(RLIMIT_STACK, &lim) == 0 |
| 3411 |
&& lim.rlim_cur != RLIM_INFINITY |
| 3412 |
&& lim.rlim_cur == (target_long)lim.rlim_cur) {
|
| 3413 |
guest_stack_size = lim.rlim_cur; |
| 3414 |
} |
| 3415 |
} |
| 3416 |
|
| 3417 |
cpu_model = NULL;
|
| 3418 |
#if defined(cpudef_setup)
|
| 3419 |
cpudef_setup(); /* parse cpu definitions in target config file (TBD) */
|
| 3420 |
#endif
|
| 3421 |
|
| 3422 |
/* init debug */
|
| 3423 |
cpu_set_log_filename(log_file); |
| 3424 |
optind = parse_args(argc, argv); |
| 3425 |
|
| 3426 |
/* Zero out regs */
|
| 3427 |
memset(regs, 0, sizeof(struct target_pt_regs)); |
| 3428 |
|
| 3429 |
/* Zero out image_info */
|
| 3430 |
memset(info, 0, sizeof(struct image_info)); |
| 3431 |
|
| 3432 |
memset(&bprm, 0, sizeof (bprm)); |
| 3433 |
|
| 3434 |
/* Scan interp_prefix dir for replacement files. */
|
| 3435 |
init_paths(interp_prefix); |
| 3436 |
|
| 3437 |
if (cpu_model == NULL) { |
| 3438 |
#if defined(TARGET_I386)
|
| 3439 |
#ifdef TARGET_X86_64
|
| 3440 |
cpu_model = "qemu64";
|
| 3441 |
#else
|
| 3442 |
cpu_model = "qemu32";
|
| 3443 |
#endif
|
| 3444 |
#elif defined(TARGET_ARM)
|
| 3445 |
cpu_model = "any";
|
| 3446 |
#elif defined(TARGET_UNICORE32)
|
| 3447 |
cpu_model = "any";
|
| 3448 |
#elif defined(TARGET_M68K)
|
| 3449 |
cpu_model = "any";
|
| 3450 |
#elif defined(TARGET_SPARC)
|
| 3451 |
#ifdef TARGET_SPARC64
|
| 3452 |
cpu_model = "TI UltraSparc II";
|
| 3453 |
#else
|
| 3454 |
cpu_model = "Fujitsu MB86904";
|
| 3455 |
#endif
|
| 3456 |
#elif defined(TARGET_MIPS)
|
| 3457 |
#if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64)
|
| 3458 |
cpu_model = "20Kc";
|
| 3459 |
#else
|
| 3460 |
cpu_model = "24Kf";
|
| 3461 |
#endif
|
| 3462 |
#elif defined TARGET_OPENRISC
|
| 3463 |
cpu_model = "or1200";
|
| 3464 |
#elif defined(TARGET_PPC)
|
| 3465 |
#ifdef TARGET_PPC64
|
| 3466 |
cpu_model = "970fx";
|
| 3467 |
#else
|
| 3468 |
cpu_model = "750";
|
| 3469 |
#endif
|
| 3470 |
#else
|
| 3471 |
cpu_model = "any";
|
| 3472 |
#endif
|
| 3473 |
} |
| 3474 |
tcg_exec_init(0);
|
| 3475 |
cpu_exec_init_all(); |
| 3476 |
/* NOTE: we need to init the CPU at this stage to get
|
| 3477 |
qemu_host_page_size */
|
| 3478 |
env = cpu_init(cpu_model); |
| 3479 |
if (!env) {
|
| 3480 |
fprintf(stderr, "Unable to find CPU definition\n");
|
| 3481 |
exit(1);
|
| 3482 |
} |
| 3483 |
#if defined(TARGET_I386) || defined(TARGET_SPARC) || defined(TARGET_PPC)
|
| 3484 |
cpu_reset(ENV_GET_CPU(env)); |
| 3485 |
#endif
|
| 3486 |
|
| 3487 |
thread_env = env; |
| 3488 |
|
| 3489 |
if (getenv("QEMU_STRACE")) { |
| 3490 |
do_strace = 1;
|
| 3491 |
} |
| 3492 |
|
| 3493 |
target_environ = envlist_to_environ(envlist, NULL);
|
| 3494 |
envlist_free(envlist); |
| 3495 |
|
| 3496 |
#if defined(CONFIG_USE_GUEST_BASE)
|
| 3497 |
/*
|
| 3498 |
* Now that page sizes are configured in cpu_init() we can do
|
| 3499 |
* proper page alignment for guest_base.
|
| 3500 |
*/
|
| 3501 |
guest_base = HOST_PAGE_ALIGN(guest_base); |
| 3502 |
|
| 3503 |
if (reserved_va || have_guest_base) {
|
| 3504 |
guest_base = init_guest_space(guest_base, reserved_va, 0,
|
| 3505 |
have_guest_base); |
| 3506 |
if (guest_base == (unsigned long)-1) { |
| 3507 |
fprintf(stderr, "Unable to reserve 0x%lx bytes of virtual address "
|
| 3508 |
"space for use as guest address space (check your virtual "
|
| 3509 |
"memory ulimit setting or reserve less using -R option)\n",
|
| 3510 |
reserved_va); |
| 3511 |
exit(1);
|
| 3512 |
} |
| 3513 |
|
| 3514 |
if (reserved_va) {
|
| 3515 |
mmap_next_start = reserved_va; |
| 3516 |
} |
| 3517 |
} |
| 3518 |
#endif /* CONFIG_USE_GUEST_BASE */ |
| 3519 |
|
| 3520 |
/*
|
| 3521 |
* Read in mmap_min_addr kernel parameter. This value is used
|
| 3522 |
* When loading the ELF image to determine whether guest_base
|
| 3523 |
* is needed. It is also used in mmap_find_vma.
|
| 3524 |
*/
|
| 3525 |
{
|
| 3526 |
FILE *fp; |
| 3527 |
|
| 3528 |
if ((fp = fopen("/proc/sys/vm/mmap_min_addr", "r")) != NULL) { |
| 3529 |
unsigned long tmp; |
| 3530 |
if (fscanf(fp, "%lu", &tmp) == 1) { |
| 3531 |
mmap_min_addr = tmp; |
| 3532 |
qemu_log("host mmap_min_addr=0x%lx\n", mmap_min_addr);
|
| 3533 |
} |
| 3534 |
fclose(fp); |
| 3535 |
} |
| 3536 |
} |
| 3537 |
|
| 3538 |
/*
|
| 3539 |
* Prepare copy of argv vector for target.
|
| 3540 |
*/
|
| 3541 |
target_argc = argc - optind; |
| 3542 |
target_argv = calloc(target_argc + 1, sizeof (char *)); |
| 3543 |
if (target_argv == NULL) { |
| 3544 |
(void) fprintf(stderr, "Unable to allocate memory for target_argv\n"); |
| 3545 |
exit(1);
|
| 3546 |
} |
| 3547 |
|
| 3548 |
/*
|
| 3549 |
* If argv0 is specified (using '-0' switch) we replace
|
| 3550 |
* argv[0] pointer with the given one.
|
| 3551 |
*/
|
| 3552 |
i = 0;
|
| 3553 |
if (argv0 != NULL) { |
| 3554 |
target_argv[i++] = strdup(argv0); |
| 3555 |
} |
| 3556 |
for (; i < target_argc; i++) {
|
| 3557 |
target_argv[i] = strdup(argv[optind + i]); |
| 3558 |
} |
| 3559 |
target_argv[target_argc] = NULL;
|
| 3560 |
|
| 3561 |
ts = g_malloc0 (sizeof(TaskState));
|
| 3562 |
init_task_state(ts); |
| 3563 |
/* build Task State */
|
| 3564 |
ts->info = info; |
| 3565 |
ts->bprm = &bprm; |
| 3566 |
env->opaque = ts; |
| 3567 |
task_settid(ts); |
| 3568 |
|
| 3569 |
ret = loader_exec(filename, target_argv, target_environ, regs, |
| 3570 |
info, &bprm); |
| 3571 |
if (ret != 0) { |
| 3572 |
printf("Error while loading %s: %s\n", filename, strerror(-ret));
|
| 3573 |
_exit(1);
|
| 3574 |
} |
| 3575 |
|
| 3576 |
for (wrk = target_environ; *wrk; wrk++) {
|
| 3577 |
free(*wrk); |
| 3578 |
} |
| 3579 |
|
| 3580 |
free(target_environ); |
| 3581 |
|
| 3582 |
if (qemu_log_enabled()) {
|
| 3583 |
#if defined(CONFIG_USE_GUEST_BASE)
|
| 3584 |
qemu_log("guest_base 0x%lx\n", guest_base);
|
| 3585 |
#endif
|
| 3586 |
log_page_dump(); |
| 3587 |
|
| 3588 |
qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk); |
| 3589 |
qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code); |
| 3590 |
qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n", |
| 3591 |
info->start_code); |
| 3592 |
qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n", |
| 3593 |
info->start_data); |
| 3594 |
qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data); |
| 3595 |
qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n", |
| 3596 |
info->start_stack); |
| 3597 |
qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk); |
| 3598 |
qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry); |
| 3599 |
} |
| 3600 |
|
| 3601 |
target_set_brk(info->brk); |
| 3602 |
syscall_init(); |
| 3603 |
signal_init(); |
| 3604 |
|
| 3605 |
#if defined(CONFIG_USE_GUEST_BASE)
|
| 3606 |
/* Now that we've loaded the binary, GUEST_BASE is fixed. Delay
|
| 3607 |
generating the prologue until now so that the prologue can take
|
| 3608 |
the real value of GUEST_BASE into account. */
|
| 3609 |
tcg_prologue_init(&tcg_ctx); |
| 3610 |
#endif
|
| 3611 |
|
| 3612 |
#if defined(TARGET_I386)
|
| 3613 |
cpu_x86_set_cpl(env, 3);
|
| 3614 |
|
| 3615 |
env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
|
| 3616 |
env->hflags |= HF_PE_MASK; |
| 3617 |
if (env->cpuid_features & CPUID_SSE) {
|
| 3618 |
env->cr[4] |= CR4_OSFXSR_MASK;
|
| 3619 |
env->hflags |= HF_OSFXSR_MASK; |
| 3620 |
} |
| 3621 |
#ifndef TARGET_ABI32
|
| 3622 |
/* enable 64 bit mode if possible */
|
| 3623 |
if (!(env->cpuid_ext2_features & CPUID_EXT2_LM)) {
|
| 3624 |
fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n");
|
| 3625 |
exit(1);
|
| 3626 |
} |
| 3627 |
env->cr[4] |= CR4_PAE_MASK;
|
| 3628 |
env->efer |= MSR_EFER_LMA | MSR_EFER_LME; |
| 3629 |
env->hflags |= HF_LMA_MASK; |
| 3630 |
#endif
|
| 3631 |
|
| 3632 |
/* flags setup : we activate the IRQs by default as in user mode */
|
| 3633 |
env->eflags |= IF_MASK; |
| 3634 |
|
| 3635 |
/* linux register setup */
|
| 3636 |
#ifndef TARGET_ABI32
|
| 3637 |
env->regs[R_EAX] = regs->rax; |
| 3638 |
env->regs[R_EBX] = regs->rbx; |
| 3639 |
env->regs[R_ECX] = regs->rcx; |
| 3640 |
env->regs[R_EDX] = regs->rdx; |
| 3641 |
env->regs[R_ESI] = regs->rsi; |
| 3642 |
env->regs[R_EDI] = regs->rdi; |
| 3643 |
env->regs[R_EBP] = regs->rbp; |
| 3644 |
env->regs[R_ESP] = regs->rsp; |
| 3645 |
env->eip = regs->rip; |
| 3646 |
#else
|
| 3647 |
env->regs[R_EAX] = regs->eax; |
| 3648 |
env->regs[R_EBX] = regs->ebx; |
| 3649 |
env->regs[R_ECX] = regs->ecx; |
| 3650 |
env->regs[R_EDX] = regs->edx; |
| 3651 |
env->regs[R_ESI] = regs->esi; |
| 3652 |
env->regs[R_EDI] = regs->edi; |
| 3653 |
env->regs[R_EBP] = regs->ebp; |
| 3654 |
env->regs[R_ESP] = regs->esp; |
| 3655 |
env->eip = regs->eip; |
| 3656 |
#endif
|
| 3657 |
|
| 3658 |
/* linux interrupt setup */
|
| 3659 |
#ifndef TARGET_ABI32
|
| 3660 |
env->idt.limit = 511;
|
| 3661 |
#else
|
| 3662 |
env->idt.limit = 255;
|
| 3663 |
#endif
|
| 3664 |
env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1), |
| 3665 |
PROT_READ|PROT_WRITE, |
| 3666 |
MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); |
| 3667 |
idt_table = g2h(env->idt.base); |
| 3668 |
set_idt(0, 0); |
| 3669 |
set_idt(1, 0); |
| 3670 |
set_idt(2, 0); |
| 3671 |
set_idt(3, 3); |
| 3672 |
set_idt(4, 3); |
| 3673 |
set_idt(5, 0); |
| 3674 |
set_idt(6, 0); |
| 3675 |
set_idt(7, 0); |
| 3676 |
set_idt(8, 0); |
| 3677 |
set_idt(9, 0); |
| 3678 |
set_idt(10, 0); |
| 3679 |
set_idt(11, 0); |
| 3680 |
set_idt(12, 0); |
| 3681 |
set_idt(13, 0); |
| 3682 |
set_idt(14, 0); |
| 3683 |
set_idt(15, 0); |
| 3684 |
set_idt(16, 0); |
| 3685 |
set_idt(17, 0); |
| 3686 |
set_idt(18, 0); |
| 3687 |
set_idt(19, 0); |
| 3688 |
set_idt(0x80, 3); |
| 3689 |
|
| 3690 |
/* linux segment setup */
|
| 3691 |
{
|
| 3692 |
uint64_t *gdt_table; |
| 3693 |
env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES, |
| 3694 |
PROT_READ|PROT_WRITE, |
| 3695 |
MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); |
| 3696 |
env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1; |
| 3697 |
gdt_table = g2h(env->gdt.base); |
| 3698 |
#ifdef TARGET_ABI32
|
| 3699 |
write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff, |
| 3700 |
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | |
| 3701 |
(3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); |
| 3702 |
#else
|
| 3703 |
/* 64 bit code segment */
|
| 3704 |
write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff, |
| 3705 |
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | |
| 3706 |
DESC_L_MASK | |
| 3707 |
(3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); |
| 3708 |
#endif
|
| 3709 |
write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff, |
| 3710 |
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | |
| 3711 |
(3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT)); |
| 3712 |
} |
| 3713 |
cpu_x86_load_seg(env, R_CS, __USER_CS); |
| 3714 |
cpu_x86_load_seg(env, R_SS, __USER_DS); |
| 3715 |
#ifdef TARGET_ABI32
|
| 3716 |
cpu_x86_load_seg(env, R_DS, __USER_DS); |
| 3717 |
cpu_x86_load_seg(env, R_ES, __USER_DS); |
| 3718 |
cpu_x86_load_seg(env, R_FS, __USER_DS); |
| 3719 |
cpu_x86_load_seg(env, R_GS, __USER_DS); |
| 3720 |
/* This hack makes Wine work... */
|
| 3721 |
env->segs[R_FS].selector = 0;
|
| 3722 |
#else
|
| 3723 |
cpu_x86_load_seg(env, R_DS, 0);
|
| 3724 |
cpu_x86_load_seg(env, R_ES, 0);
|
| 3725 |
cpu_x86_load_seg(env, R_FS, 0);
|
| 3726 |
cpu_x86_load_seg(env, R_GS, 0);
|
| 3727 |
#endif
|
| 3728 |
#elif defined(TARGET_ARM)
|
| 3729 |
{
|
| 3730 |
int i;
|
| 3731 |
cpsr_write(env, regs->uregs[16], 0xffffffff); |
| 3732 |
for(i = 0; i < 16; i++) { |
| 3733 |
env->regs[i] = regs->uregs[i]; |
| 3734 |
} |
| 3735 |
/* Enable BE8. */
|
| 3736 |
if (EF_ARM_EABI_VERSION(info->elf_flags) >= EF_ARM_EABI_VER4
|
| 3737 |
&& (info->elf_flags & EF_ARM_BE8)) {
|
| 3738 |
env->bswap_code = 1;
|
| 3739 |
} |
| 3740 |
} |
| 3741 |
#elif defined(TARGET_UNICORE32)
|
| 3742 |
{
|
| 3743 |
int i;
|
| 3744 |
cpu_asr_write(env, regs->uregs[32], 0xffffffff); |
| 3745 |
for (i = 0; i < 32; i++) { |
| 3746 |
env->regs[i] = regs->uregs[i]; |
| 3747 |
} |
| 3748 |
} |
| 3749 |
#elif defined(TARGET_SPARC)
|
| 3750 |
{
|
| 3751 |
int i;
|
| 3752 |
env->pc = regs->pc; |
| 3753 |
env->npc = regs->npc; |
| 3754 |
env->y = regs->y; |
| 3755 |
for(i = 0; i < 8; i++) |
| 3756 |
env->gregs[i] = regs->u_regs[i]; |
| 3757 |
for(i = 0; i < 8; i++) |
| 3758 |
env->regwptr[i] = regs->u_regs[i + 8];
|
| 3759 |
} |
| 3760 |
#elif defined(TARGET_PPC)
|
| 3761 |
{
|
| 3762 |
int i;
|
| 3763 |
|
| 3764 |
#if defined(TARGET_PPC64)
|
| 3765 |
#if defined(TARGET_ABI32)
|
| 3766 |
env->msr &= ~((target_ulong)1 << MSR_SF);
|
| 3767 |
#else
|
| 3768 |
env->msr |= (target_ulong)1 << MSR_SF;
|
| 3769 |
#endif
|
| 3770 |
#endif
|
| 3771 |
env->nip = regs->nip; |
| 3772 |
for(i = 0; i < 32; i++) { |
| 3773 |
env->gpr[i] = regs->gpr[i]; |
| 3774 |
} |
| 3775 |
} |
| 3776 |
#elif defined(TARGET_M68K)
|
| 3777 |
{
|
| 3778 |
env->pc = regs->pc; |
| 3779 |
env->dregs[0] = regs->d0;
|
| 3780 |
env->dregs[1] = regs->d1;
|
| 3781 |
env->dregs[2] = regs->d2;
|
| 3782 |
env->dregs[3] = regs->d3;
|
| 3783 |
env->dregs[4] = regs->d4;
|
| 3784 |
env->dregs[5] = regs->d5;
|
| 3785 |
env->dregs[6] = regs->d6;
|
| 3786 |
env->dregs[7] = regs->d7;
|
| 3787 |
env->aregs[0] = regs->a0;
|
| 3788 |
env->aregs[1] = regs->a1;
|
| 3789 |
env->aregs[2] = regs->a2;
|
| 3790 |
env->aregs[3] = regs->a3;
|
| 3791 |
env->aregs[4] = regs->a4;
|
| 3792 |
env->aregs[5] = regs->a5;
|
| 3793 |
env->aregs[6] = regs->a6;
|
| 3794 |
env->aregs[7] = regs->usp;
|
| 3795 |
env->sr = regs->sr; |
| 3796 |
ts->sim_syscalls = 1;
|
| 3797 |
} |
| 3798 |
#elif defined(TARGET_MICROBLAZE)
|
| 3799 |
{
|
| 3800 |
env->regs[0] = regs->r0;
|
| 3801 |
env->regs[1] = regs->r1;
|
| 3802 |
env->regs[2] = regs->r2;
|
| 3803 |
env->regs[3] = regs->r3;
|
| 3804 |
env->regs[4] = regs->r4;
|
| 3805 |
env->regs[5] = regs->r5;
|
| 3806 |
env->regs[6] = regs->r6;
|
| 3807 |
env->regs[7] = regs->r7;
|
| 3808 |
env->regs[8] = regs->r8;
|
| 3809 |
env->regs[9] = regs->r9;
|
| 3810 |
env->regs[10] = regs->r10;
|
| 3811 |
env->regs[11] = regs->r11;
|
| 3812 |
env->regs[12] = regs->r12;
|
| 3813 |
env->regs[13] = regs->r13;
|
| 3814 |
env->regs[14] = regs->r14;
|
| 3815 |
env->regs[15] = regs->r15;
|
| 3816 |
env->regs[16] = regs->r16;
|
| 3817 |
env->regs[17] = regs->r17;
|
| 3818 |
env->regs[18] = regs->r18;
|
| 3819 |
env->regs[19] = regs->r19;
|
| 3820 |
env->regs[20] = regs->r20;
|
| 3821 |
env->regs[21] = regs->r21;
|
| 3822 |
env->regs[22] = regs->r22;
|
| 3823 |
env->regs[23] = regs->r23;
|
| 3824 |
env->regs[24] = regs->r24;
|
| 3825 |
env->regs[25] = regs->r25;
|
| 3826 |
env->regs[26] = regs->r26;
|
| 3827 |
env->regs[27] = regs->r27;
|
| 3828 |
env->regs[28] = regs->r28;
|
| 3829 |
env->regs[29] = regs->r29;
|
| 3830 |
env->regs[30] = regs->r30;
|
| 3831 |
env->regs[31] = regs->r31;
|
| 3832 |
env->sregs[SR_PC] = regs->pc; |
| 3833 |
} |
| 3834 |
#elif defined(TARGET_MIPS)
|
| 3835 |
{
|
| 3836 |
int i;
|
| 3837 |
|
| 3838 |
for(i = 0; i < 32; i++) { |
| 3839 |
env->active_tc.gpr[i] = regs->regs[i]; |
| 3840 |
} |
| 3841 |
env->active_tc.PC = regs->cp0_epc & ~(target_ulong)1;
|
| 3842 |
if (regs->cp0_epc & 1) { |
| 3843 |
env->hflags |= MIPS_HFLAG_M16; |
| 3844 |
} |
| 3845 |
} |
| 3846 |
#elif defined(TARGET_OPENRISC)
|
| 3847 |
{
|
| 3848 |
int i;
|
| 3849 |
|
| 3850 |
for (i = 0; i < 32; i++) { |
| 3851 |
env->gpr[i] = regs->gpr[i]; |
| 3852 |
} |
| 3853 |
|
| 3854 |
env->sr = regs->sr; |
| 3855 |
env->pc = regs->pc; |
| 3856 |
} |
| 3857 |
#elif defined(TARGET_SH4)
|
| 3858 |
{
|
| 3859 |
int i;
|
| 3860 |
|
| 3861 |
for(i = 0; i < 16; i++) { |
| 3862 |
env->gregs[i] = regs->regs[i]; |
| 3863 |
} |
| 3864 |
env->pc = regs->pc; |
| 3865 |
} |
| 3866 |
#elif defined(TARGET_ALPHA)
|
| 3867 |
{
|
| 3868 |
int i;
|
| 3869 |
|
| 3870 |
for(i = 0; i < 28; i++) { |
| 3871 |
env->ir[i] = ((abi_ulong *)regs)[i]; |
| 3872 |
} |
| 3873 |
env->ir[IR_SP] = regs->usp; |
| 3874 |
env->pc = regs->pc; |
| 3875 |
} |
| 3876 |
#elif defined(TARGET_CRIS)
|
| 3877 |
{
|
| 3878 |
env->regs[0] = regs->r0;
|
| 3879 |
env->regs[1] = regs->r1;
|
| 3880 |
env->regs[2] = regs->r2;
|
| 3881 |
env->regs[3] = regs->r3;
|
| 3882 |
env->regs[4] = regs->r4;
|
| 3883 |
env->regs[5] = regs->r5;
|
| 3884 |
env->regs[6] = regs->r6;
|
| 3885 |
env->regs[7] = regs->r7;
|
| 3886 |
env->regs[8] = regs->r8;
|
| 3887 |
env->regs[9] = regs->r9;
|
| 3888 |
env->regs[10] = regs->r10;
|
| 3889 |
env->regs[11] = regs->r11;
|
| 3890 |
env->regs[12] = regs->r12;
|
| 3891 |
env->regs[13] = regs->r13;
|
| 3892 |
env->regs[14] = info->start_stack;
|
| 3893 |
env->regs[15] = regs->acr;
|
| 3894 |
env->pc = regs->erp; |
| 3895 |
} |
| 3896 |
#elif defined(TARGET_S390X)
|
| 3897 |
{
|
| 3898 |
int i;
|
| 3899 |
for (i = 0; i < 16; i++) { |
| 3900 |
env->regs[i] = regs->gprs[i]; |
| 3901 |
} |
| 3902 |
env->psw.mask = regs->psw.mask; |
| 3903 |
env->psw.addr = regs->psw.addr; |
| 3904 |
} |
| 3905 |
#else
|
| 3906 |
#error unsupported target CPU
|
| 3907 |
#endif
|
| 3908 |
|
| 3909 |
#if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
|
| 3910 |
ts->stack_base = info->start_stack; |
| 3911 |
ts->heap_base = info->brk; |
| 3912 |
/* This will be filled in on the first SYS_HEAPINFO call. */
|
| 3913 |
ts->heap_limit = 0;
|
| 3914 |
#endif
|
| 3915 |
|
| 3916 |
if (gdbstub_port) {
|
| 3917 |
if (gdbserver_start(gdbstub_port) < 0) { |
| 3918 |
fprintf(stderr, "qemu: could not open gdbserver on port %d\n",
|
| 3919 |
gdbstub_port); |
| 3920 |
exit(1);
|
| 3921 |
} |
| 3922 |
gdb_handlesig(env, 0);
|
| 3923 |
} |
| 3924 |
cpu_loop(env); |
| 3925 |
/* never exits */
|
| 3926 |
return 0; |
| 3927 |
} |