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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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#include <stdlib.h> |
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#include <stdio.h> |
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#include <stdarg.h> |
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#include <string.h> |
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#include <errno.h> |
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#include <unistd.h> |
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#include <sys/mman.h> |
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#include <sys/syscall.h> |
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#include "qemu.h" |
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#include "qemu-common.h" |
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#include "cache-utils.h" |
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/* For tb_lock */
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#include "exec-all.h" |
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#include "envlist.h" |
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#define DEBUG_LOGFILE "/tmp/qemu.log" |
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char *exec_path;
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int singlestep;
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static const char *interp_prefix = CONFIG_QEMU_PREFIX; |
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const char *qemu_uname_release = CONFIG_UNAME_RELEASE; |
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|
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#if defined(__i386__) && !defined(CONFIG_STATIC)
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/* Force usage of an ELF interpreter even if it is an ELF shared
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object ! */
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const char interp[] __attribute__((section(".interp"))) = "/lib/ld-linux.so.2"; |
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#endif
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/* for recent libc, we add these dummy symbols which are not declared
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when generating a linked object (bug in ld ?) */
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#if (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3)) && !defined(CONFIG_STATIC) |
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asm(".globl __preinit_array_start\n" |
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".globl __preinit_array_end\n"
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".globl __init_array_start\n"
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".globl __init_array_end\n"
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".globl __fini_array_start\n"
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".globl __fini_array_end\n"
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".section \".rodata\"\n"
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"__preinit_array_start:\n"
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"__preinit_array_end:\n"
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"__init_array_start:\n"
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"__init_array_end:\n"
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"__fini_array_start:\n"
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"__fini_array_end:\n"
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".long 0\n"
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".previous\n");
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#endif
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/* XXX: on x86 MAP_GROWSDOWN only works if ESP <= address + 32, so
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we allocate a bigger stack. Need a better solution, for example
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by remapping the process stack directly at the right place */
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unsigned long x86_stack_size = 512 * 1024; |
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void gemu_log(const char *fmt, ...) |
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{
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va_list ap; |
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va_start(ap, fmt); |
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vfprintf(stderr, fmt, ap); |
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va_end(ap); |
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} |
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|
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#if defined(TARGET_I386)
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int cpu_get_pic_interrupt(CPUState *env)
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{
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return -1; |
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} |
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#endif
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/* timers for rdtsc */
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#if 0
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static uint64_t emu_time;
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int64_t cpu_get_real_ticks(void)
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{
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return emu_time++;
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}
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#endif
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#if defined(USE_NPTL)
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/***********************************************************/
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/* Helper routines for implementing atomic operations. */
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/* To implement exclusive operations we force all cpus to syncronise.
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We don't require a full sync, only that no cpus are executing guest code.
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The alternative is to map target atomic ops onto host equivalents,
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which requires quite a lot of per host/target work. */
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static pthread_mutex_t cpu_list_mutex = PTHREAD_MUTEX_INITIALIZER;
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static pthread_mutex_t exclusive_lock = PTHREAD_MUTEX_INITIALIZER;
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static pthread_cond_t exclusive_cond = PTHREAD_COND_INITIALIZER;
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static pthread_cond_t exclusive_resume = PTHREAD_COND_INITIALIZER;
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static int pending_cpus; |
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/* Make sure everything is in a consistent state for calling fork(). */
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void fork_start(void) |
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{
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mmap_fork_start(); |
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pthread_mutex_lock(&tb_lock); |
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pthread_mutex_lock(&exclusive_lock); |
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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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/* 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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mmap_fork_end(child); |
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} |
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/* Wait for pending exclusive operations to complete. The exclusive lock
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must be held. */
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static inline void exclusive_idle(void) |
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{
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while (pending_cpus) {
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pthread_cond_wait(&exclusive_resume, &exclusive_lock); |
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} |
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} |
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/* Start an exclusive operation.
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Must only be called from outside cpu_arm_exec. */
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static inline void start_exclusive(void) |
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{
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CPUState *other; |
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pthread_mutex_lock(&exclusive_lock); |
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exclusive_idle(); |
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pending_cpus = 1;
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/* Make all other cpus stop executing. */
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for (other = first_cpu; other; other = other->next_cpu) {
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if (other->running) {
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pending_cpus++; |
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cpu_exit(other); |
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} |
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} |
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if (pending_cpus > 1) { |
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pthread_cond_wait(&exclusive_cond, &exclusive_lock); |
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} |
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} |
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/* Finish an exclusive operation. */
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static inline void end_exclusive(void) |
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{
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pending_cpus = 0;
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pthread_cond_broadcast(&exclusive_resume); |
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pthread_mutex_unlock(&exclusive_lock); |
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} |
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/* Wait for exclusive ops to finish, and begin cpu execution. */
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static inline void cpu_exec_start(CPUState *env) |
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{
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pthread_mutex_lock(&exclusive_lock); |
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exclusive_idle(); |
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env->running = 1;
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pthread_mutex_unlock(&exclusive_lock); |
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} |
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/* Mark cpu as not executing, and release pending exclusive ops. */
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static inline void cpu_exec_end(CPUState *env) |
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{
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pthread_mutex_lock(&exclusive_lock); |
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env->running = 0;
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if (pending_cpus > 1) { |
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pending_cpus--; |
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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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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 !USE_NPTL */ |
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/* These are no-ops because we are not threadsafe. */
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static inline void cpu_exec_start(CPUState *env) |
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{
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} |
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static inline void cpu_exec_end(CPUState *env) |
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{
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} |
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static inline void start_exclusive(void) |
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{
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} |
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static inline void end_exclusive(void) |
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{
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} |
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void fork_start(void) |
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{
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} |
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|
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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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#ifdef TARGET_I386
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/***********************************************************/
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/* CPUX86 core interface */
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void cpu_smm_update(CPUState *env)
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{
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} |
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uint64_t cpu_get_tsc(CPUX86State *env) |
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{
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return cpu_get_real_ticks();
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} |
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static void write_dt(void *ptr, unsigned long addr, unsigned long limit, |
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int flags)
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{
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unsigned int e1, e2; |
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uint32_t *p; |
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e1 = (addr << 16) | (limit & 0xffff); |
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e2 = ((addr >> 16) & 0xff) | (addr & 0xff000000) | (limit & 0x000f0000); |
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e2 |= flags; |
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p = ptr; |
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p[0] = tswap32(e1);
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p[1] = tswap32(e2);
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} |
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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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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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break;
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#ifndef TARGET_ABI32
|
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case EXCP_SYSCALL:
|
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/* linux syscall from syscall intruction */
|
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env->regs[R_EAX] = do_syscall(env, |
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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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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; |
| 364 |
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); |
| 372 |
} else
|
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#endif
|
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{
|
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info.si_signo = SIGSEGV; |
| 376 |
info.si_errno = 0;
|
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info.si_code = TARGET_SI_KERNEL; |
| 378 |
info._sifields._sigfault._addr = 0;
|
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queue_signal(env, info.si_signo, &info); |
| 380 |
} |
| 381 |
break;
|
| 382 |
case EXCP0E_PAGE:
|
| 383 |
info.si_signo = SIGSEGV; |
| 384 |
info.si_errno = 0;
|
| 385 |
if (!(env->error_code & 1)) |
| 386 |
info.si_code = TARGET_SEGV_MAPERR; |
| 387 |
else
|
| 388 |
info.si_code = TARGET_SEGV_ACCERR; |
| 389 |
info._sifields._sigfault._addr = env->cr[2];
|
| 390 |
queue_signal(env, info.si_signo, &info); |
| 391 |
break;
|
| 392 |
case EXCP00_DIVZ:
|
| 393 |
#ifndef TARGET_X86_64
|
| 394 |
if (env->eflags & VM_MASK) {
|
| 395 |
handle_vm86_trap(env, trapnr); |
| 396 |
} else
|
| 397 |
#endif
|
| 398 |
{
|
| 399 |
/* division by zero */
|
| 400 |
info.si_signo = SIGFPE; |
| 401 |
info.si_errno = 0;
|
| 402 |
info.si_code = TARGET_FPE_INTDIV; |
| 403 |
info._sifields._sigfault._addr = env->eip; |
| 404 |
queue_signal(env, info.si_signo, &info); |
| 405 |
} |
| 406 |
break;
|
| 407 |
case EXCP01_DB:
|
| 408 |
case EXCP03_INT3:
|
| 409 |
#ifndef TARGET_X86_64
|
| 410 |
if (env->eflags & VM_MASK) {
|
| 411 |
handle_vm86_trap(env, trapnr); |
| 412 |
} else
|
| 413 |
#endif
|
| 414 |
{
|
| 415 |
info.si_signo = SIGTRAP; |
| 416 |
info.si_errno = 0;
|
| 417 |
if (trapnr == EXCP01_DB) {
|
| 418 |
info.si_code = TARGET_TRAP_BRKPT; |
| 419 |
info._sifields._sigfault._addr = env->eip; |
| 420 |
} else {
|
| 421 |
info.si_code = TARGET_SI_KERNEL; |
| 422 |
info._sifields._sigfault._addr = 0;
|
| 423 |
} |
| 424 |
queue_signal(env, info.si_signo, &info); |
| 425 |
} |
| 426 |
break;
|
| 427 |
case EXCP04_INTO:
|
| 428 |
case EXCP05_BOUND:
|
| 429 |
#ifndef TARGET_X86_64
|
| 430 |
if (env->eflags & VM_MASK) {
|
| 431 |
handle_vm86_trap(env, trapnr); |
| 432 |
} else
|
| 433 |
#endif
|
| 434 |
{
|
| 435 |
info.si_signo = SIGSEGV; |
| 436 |
info.si_errno = 0;
|
| 437 |
info.si_code = TARGET_SI_KERNEL; |
| 438 |
info._sifields._sigfault._addr = 0;
|
| 439 |
queue_signal(env, info.si_signo, &info); |
| 440 |
} |
| 441 |
break;
|
| 442 |
case EXCP06_ILLOP:
|
| 443 |
info.si_signo = SIGILL; |
| 444 |
info.si_errno = 0;
|
| 445 |
info.si_code = TARGET_ILL_ILLOPN; |
| 446 |
info._sifields._sigfault._addr = env->eip; |
| 447 |
queue_signal(env, info.si_signo, &info); |
| 448 |
break;
|
| 449 |
case EXCP_INTERRUPT:
|
| 450 |
/* just indicate that signals should be handled asap */
|
| 451 |
break;
|
| 452 |
case EXCP_DEBUG:
|
| 453 |
{
|
| 454 |
int sig;
|
| 455 |
|
| 456 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 457 |
if (sig)
|
| 458 |
{
|
| 459 |
info.si_signo = sig; |
| 460 |
info.si_errno = 0;
|
| 461 |
info.si_code = TARGET_TRAP_BRKPT; |
| 462 |
queue_signal(env, info.si_signo, &info); |
| 463 |
} |
| 464 |
} |
| 465 |
break;
|
| 466 |
default:
|
| 467 |
pc = env->segs[R_CS].base + env->eip; |
| 468 |
fprintf(stderr, "qemu: 0x%08lx: unhandled CPU exception 0x%x - aborting\n",
|
| 469 |
(long)pc, trapnr);
|
| 470 |
abort(); |
| 471 |
} |
| 472 |
process_pending_signals(env); |
| 473 |
} |
| 474 |
} |
| 475 |
#endif
|
| 476 |
|
| 477 |
#ifdef TARGET_ARM
|
| 478 |
|
| 479 |
static void arm_cache_flush(abi_ulong start, abi_ulong last) |
| 480 |
{
|
| 481 |
abi_ulong addr, last1; |
| 482 |
|
| 483 |
if (last < start)
|
| 484 |
return;
|
| 485 |
addr = start; |
| 486 |
for(;;) {
|
| 487 |
last1 = ((addr + TARGET_PAGE_SIZE) & TARGET_PAGE_MASK) - 1;
|
| 488 |
if (last1 > last)
|
| 489 |
last1 = last; |
| 490 |
tb_invalidate_page_range(addr, last1 + 1);
|
| 491 |
if (last1 == last)
|
| 492 |
break;
|
| 493 |
addr = last1 + 1;
|
| 494 |
} |
| 495 |
} |
| 496 |
|
| 497 |
/* Handle a jump to the kernel code page. */
|
| 498 |
static int |
| 499 |
do_kernel_trap(CPUARMState *env) |
| 500 |
{
|
| 501 |
uint32_t addr; |
| 502 |
uint32_t cpsr; |
| 503 |
uint32_t val; |
| 504 |
|
| 505 |
switch (env->regs[15]) { |
| 506 |
case 0xffff0fa0: /* __kernel_memory_barrier */ |
| 507 |
/* ??? No-op. Will need to do better for SMP. */
|
| 508 |
break;
|
| 509 |
case 0xffff0fc0: /* __kernel_cmpxchg */ |
| 510 |
/* XXX: This only works between threads, not between processes.
|
| 511 |
It's probably possible to implement this with native host
|
| 512 |
operations. However things like ldrex/strex are much harder so
|
| 513 |
there's not much point trying. */
|
| 514 |
start_exclusive(); |
| 515 |
cpsr = cpsr_read(env); |
| 516 |
addr = env->regs[2];
|
| 517 |
/* FIXME: This should SEGV if the access fails. */
|
| 518 |
if (get_user_u32(val, addr))
|
| 519 |
val = ~env->regs[0];
|
| 520 |
if (val == env->regs[0]) { |
| 521 |
val = env->regs[1];
|
| 522 |
/* FIXME: Check for segfaults. */
|
| 523 |
put_user_u32(val, addr); |
| 524 |
env->regs[0] = 0; |
| 525 |
cpsr |= CPSR_C; |
| 526 |
} else {
|
| 527 |
env->regs[0] = -1; |
| 528 |
cpsr &= ~CPSR_C; |
| 529 |
} |
| 530 |
cpsr_write(env, cpsr, CPSR_C); |
| 531 |
end_exclusive(); |
| 532 |
break;
|
| 533 |
case 0xffff0fe0: /* __kernel_get_tls */ |
| 534 |
env->regs[0] = env->cp15.c13_tls2;
|
| 535 |
break;
|
| 536 |
default:
|
| 537 |
return 1; |
| 538 |
} |
| 539 |
/* Jump back to the caller. */
|
| 540 |
addr = env->regs[14];
|
| 541 |
if (addr & 1) { |
| 542 |
env->thumb = 1;
|
| 543 |
addr &= ~1;
|
| 544 |
} |
| 545 |
env->regs[15] = addr;
|
| 546 |
|
| 547 |
return 0; |
| 548 |
} |
| 549 |
|
| 550 |
void cpu_loop(CPUARMState *env)
|
| 551 |
{
|
| 552 |
int trapnr;
|
| 553 |
unsigned int n, insn; |
| 554 |
target_siginfo_t info; |
| 555 |
uint32_t addr; |
| 556 |
|
| 557 |
for(;;) {
|
| 558 |
cpu_exec_start(env); |
| 559 |
trapnr = cpu_arm_exec(env); |
| 560 |
cpu_exec_end(env); |
| 561 |
switch(trapnr) {
|
| 562 |
case EXCP_UDEF:
|
| 563 |
{
|
| 564 |
TaskState *ts = env->opaque; |
| 565 |
uint32_t opcode; |
| 566 |
int rc;
|
| 567 |
|
| 568 |
/* we handle the FPU emulation here, as Linux */
|
| 569 |
/* we get the opcode */
|
| 570 |
/* FIXME - what to do if get_user() fails? */
|
| 571 |
get_user_u32(opcode, env->regs[15]);
|
| 572 |
|
| 573 |
rc = EmulateAll(opcode, &ts->fpa, env); |
| 574 |
if (rc == 0) { /* illegal instruction */ |
| 575 |
info.si_signo = SIGILL; |
| 576 |
info.si_errno = 0;
|
| 577 |
info.si_code = TARGET_ILL_ILLOPN; |
| 578 |
info._sifields._sigfault._addr = env->regs[15];
|
| 579 |
queue_signal(env, info.si_signo, &info); |
| 580 |
} else if (rc < 0) { /* FP exception */ |
| 581 |
int arm_fpe=0; |
| 582 |
|
| 583 |
/* translate softfloat flags to FPSR flags */
|
| 584 |
if (-rc & float_flag_invalid)
|
| 585 |
arm_fpe |= BIT_IOC; |
| 586 |
if (-rc & float_flag_divbyzero)
|
| 587 |
arm_fpe |= BIT_DZC; |
| 588 |
if (-rc & float_flag_overflow)
|
| 589 |
arm_fpe |= BIT_OFC; |
| 590 |
if (-rc & float_flag_underflow)
|
| 591 |
arm_fpe |= BIT_UFC; |
| 592 |
if (-rc & float_flag_inexact)
|
| 593 |
arm_fpe |= BIT_IXC; |
| 594 |
|
| 595 |
FPSR fpsr = ts->fpa.fpsr; |
| 596 |
//printf("fpsr 0x%x, arm_fpe 0x%x\n",fpsr,arm_fpe);
|
| 597 |
|
| 598 |
if (fpsr & (arm_fpe << 16)) { /* exception enabled? */ |
| 599 |
info.si_signo = SIGFPE; |
| 600 |
info.si_errno = 0;
|
| 601 |
|
| 602 |
/* ordered by priority, least first */
|
| 603 |
if (arm_fpe & BIT_IXC) info.si_code = TARGET_FPE_FLTRES;
|
| 604 |
if (arm_fpe & BIT_UFC) info.si_code = TARGET_FPE_FLTUND;
|
| 605 |
if (arm_fpe & BIT_OFC) info.si_code = TARGET_FPE_FLTOVF;
|
| 606 |
if (arm_fpe & BIT_DZC) info.si_code = TARGET_FPE_FLTDIV;
|
| 607 |
if (arm_fpe & BIT_IOC) info.si_code = TARGET_FPE_FLTINV;
|
| 608 |
|
| 609 |
info._sifields._sigfault._addr = env->regs[15];
|
| 610 |
queue_signal(env, info.si_signo, &info); |
| 611 |
} else {
|
| 612 |
env->regs[15] += 4; |
| 613 |
} |
| 614 |
|
| 615 |
/* accumulate unenabled exceptions */
|
| 616 |
if ((!(fpsr & BIT_IXE)) && (arm_fpe & BIT_IXC))
|
| 617 |
fpsr |= BIT_IXC; |
| 618 |
if ((!(fpsr & BIT_UFE)) && (arm_fpe & BIT_UFC))
|
| 619 |
fpsr |= BIT_UFC; |
| 620 |
if ((!(fpsr & BIT_OFE)) && (arm_fpe & BIT_OFC))
|
| 621 |
fpsr |= BIT_OFC; |
| 622 |
if ((!(fpsr & BIT_DZE)) && (arm_fpe & BIT_DZC))
|
| 623 |
fpsr |= BIT_DZC; |
| 624 |
if ((!(fpsr & BIT_IOE)) && (arm_fpe & BIT_IOC))
|
| 625 |
fpsr |= BIT_IOC; |
| 626 |
ts->fpa.fpsr=fpsr; |
| 627 |
} else { /* everything OK */ |
| 628 |
/* increment PC */
|
| 629 |
env->regs[15] += 4; |
| 630 |
} |
| 631 |
} |
| 632 |
break;
|
| 633 |
case EXCP_SWI:
|
| 634 |
case EXCP_BKPT:
|
| 635 |
{
|
| 636 |
env->eabi = 1;
|
| 637 |
/* system call */
|
| 638 |
if (trapnr == EXCP_BKPT) {
|
| 639 |
if (env->thumb) {
|
| 640 |
/* FIXME - what to do if get_user() fails? */
|
| 641 |
get_user_u16(insn, env->regs[15]);
|
| 642 |
n = insn & 0xff;
|
| 643 |
env->regs[15] += 2; |
| 644 |
} else {
|
| 645 |
/* FIXME - what to do if get_user() fails? */
|
| 646 |
get_user_u32(insn, env->regs[15]);
|
| 647 |
n = (insn & 0xf) | ((insn >> 4) & 0xff0); |
| 648 |
env->regs[15] += 4; |
| 649 |
} |
| 650 |
} else {
|
| 651 |
if (env->thumb) {
|
| 652 |
/* FIXME - what to do if get_user() fails? */
|
| 653 |
get_user_u16(insn, env->regs[15] - 2); |
| 654 |
n = insn & 0xff;
|
| 655 |
} else {
|
| 656 |
/* FIXME - what to do if get_user() fails? */
|
| 657 |
get_user_u32(insn, env->regs[15] - 4); |
| 658 |
n = insn & 0xffffff;
|
| 659 |
} |
| 660 |
} |
| 661 |
|
| 662 |
if (n == ARM_NR_cacheflush) {
|
| 663 |
arm_cache_flush(env->regs[0], env->regs[1]); |
| 664 |
} else if (n == ARM_NR_semihosting |
| 665 |
|| n == ARM_NR_thumb_semihosting) {
|
| 666 |
env->regs[0] = do_arm_semihosting (env);
|
| 667 |
} else if (n == 0 || n >= ARM_SYSCALL_BASE |
| 668 |
|| (env->thumb && n == ARM_THUMB_SYSCALL)) {
|
| 669 |
/* linux syscall */
|
| 670 |
if (env->thumb || n == 0) { |
| 671 |
n = env->regs[7];
|
| 672 |
} else {
|
| 673 |
n -= ARM_SYSCALL_BASE; |
| 674 |
env->eabi = 0;
|
| 675 |
} |
| 676 |
if ( n > ARM_NR_BASE) {
|
| 677 |
switch (n) {
|
| 678 |
case ARM_NR_cacheflush:
|
| 679 |
arm_cache_flush(env->regs[0], env->regs[1]); |
| 680 |
break;
|
| 681 |
case ARM_NR_set_tls:
|
| 682 |
cpu_set_tls(env, env->regs[0]);
|
| 683 |
env->regs[0] = 0; |
| 684 |
break;
|
| 685 |
default:
|
| 686 |
gemu_log("qemu: Unsupported ARM syscall: 0x%x\n",
|
| 687 |
n); |
| 688 |
env->regs[0] = -TARGET_ENOSYS;
|
| 689 |
break;
|
| 690 |
} |
| 691 |
} else {
|
| 692 |
env->regs[0] = do_syscall(env,
|
| 693 |
n, |
| 694 |
env->regs[0],
|
| 695 |
env->regs[1],
|
| 696 |
env->regs[2],
|
| 697 |
env->regs[3],
|
| 698 |
env->regs[4],
|
| 699 |
env->regs[5]);
|
| 700 |
} |
| 701 |
} else {
|
| 702 |
goto error;
|
| 703 |
} |
| 704 |
} |
| 705 |
break;
|
| 706 |
case EXCP_INTERRUPT:
|
| 707 |
/* just indicate that signals should be handled asap */
|
| 708 |
break;
|
| 709 |
case EXCP_PREFETCH_ABORT:
|
| 710 |
addr = env->cp15.c6_insn; |
| 711 |
goto do_segv;
|
| 712 |
case EXCP_DATA_ABORT:
|
| 713 |
addr = env->cp15.c6_data; |
| 714 |
goto do_segv;
|
| 715 |
do_segv:
|
| 716 |
{
|
| 717 |
info.si_signo = SIGSEGV; |
| 718 |
info.si_errno = 0;
|
| 719 |
/* XXX: check env->error_code */
|
| 720 |
info.si_code = TARGET_SEGV_MAPERR; |
| 721 |
info._sifields._sigfault._addr = addr; |
| 722 |
queue_signal(env, info.si_signo, &info); |
| 723 |
} |
| 724 |
break;
|
| 725 |
case EXCP_DEBUG:
|
| 726 |
{
|
| 727 |
int sig;
|
| 728 |
|
| 729 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 730 |
if (sig)
|
| 731 |
{
|
| 732 |
info.si_signo = sig; |
| 733 |
info.si_errno = 0;
|
| 734 |
info.si_code = TARGET_TRAP_BRKPT; |
| 735 |
queue_signal(env, info.si_signo, &info); |
| 736 |
} |
| 737 |
} |
| 738 |
break;
|
| 739 |
case EXCP_KERNEL_TRAP:
|
| 740 |
if (do_kernel_trap(env))
|
| 741 |
goto error;
|
| 742 |
break;
|
| 743 |
default:
|
| 744 |
error:
|
| 745 |
fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
|
| 746 |
trapnr); |
| 747 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 748 |
abort(); |
| 749 |
} |
| 750 |
process_pending_signals(env); |
| 751 |
} |
| 752 |
} |
| 753 |
|
| 754 |
#endif
|
| 755 |
|
| 756 |
#ifdef TARGET_SPARC
|
| 757 |
#define SPARC64_STACK_BIAS 2047 |
| 758 |
|
| 759 |
//#define DEBUG_WIN
|
| 760 |
|
| 761 |
/* WARNING: dealing with register windows _is_ complicated. More info
|
| 762 |
can be found at http://www.sics.se/~psm/sparcstack.html */
|
| 763 |
static inline int get_reg_index(CPUSPARCState *env, int cwp, int index) |
| 764 |
{
|
| 765 |
index = (index + cwp * 16) % (16 * env->nwindows); |
| 766 |
/* wrap handling : if cwp is on the last window, then we use the
|
| 767 |
registers 'after' the end */
|
| 768 |
if (index < 8 && env->cwp == env->nwindows - 1) |
| 769 |
index += 16 * env->nwindows;
|
| 770 |
return index;
|
| 771 |
} |
| 772 |
|
| 773 |
/* save the register window 'cwp1' */
|
| 774 |
static inline void save_window_offset(CPUSPARCState *env, int cwp1) |
| 775 |
{
|
| 776 |
unsigned int i; |
| 777 |
abi_ulong sp_ptr; |
| 778 |
|
| 779 |
sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
|
| 780 |
#ifdef TARGET_SPARC64
|
| 781 |
if (sp_ptr & 3) |
| 782 |
sp_ptr += SPARC64_STACK_BIAS; |
| 783 |
#endif
|
| 784 |
#if defined(DEBUG_WIN)
|
| 785 |
printf("win_overflow: sp_ptr=0x" TARGET_ABI_FMT_lx " save_cwp=%d\n", |
| 786 |
sp_ptr, cwp1); |
| 787 |
#endif
|
| 788 |
for(i = 0; i < 16; i++) { |
| 789 |
/* FIXME - what to do if put_user() fails? */
|
| 790 |
put_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
|
| 791 |
sp_ptr += sizeof(abi_ulong);
|
| 792 |
} |
| 793 |
} |
| 794 |
|
| 795 |
static void save_window(CPUSPARCState *env) |
| 796 |
{
|
| 797 |
#ifndef TARGET_SPARC64
|
| 798 |
unsigned int new_wim; |
| 799 |
new_wim = ((env->wim >> 1) | (env->wim << (env->nwindows - 1))) & |
| 800 |
((1LL << env->nwindows) - 1); |
| 801 |
save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
|
| 802 |
env->wim = new_wim; |
| 803 |
#else
|
| 804 |
save_window_offset(env, cpu_cwp_dec(env, env->cwp - 2));
|
| 805 |
env->cansave++; |
| 806 |
env->canrestore--; |
| 807 |
#endif
|
| 808 |
} |
| 809 |
|
| 810 |
static void restore_window(CPUSPARCState *env) |
| 811 |
{
|
| 812 |
#ifndef TARGET_SPARC64
|
| 813 |
unsigned int new_wim; |
| 814 |
#endif
|
| 815 |
unsigned int i, cwp1; |
| 816 |
abi_ulong sp_ptr; |
| 817 |
|
| 818 |
#ifndef TARGET_SPARC64
|
| 819 |
new_wim = ((env->wim << 1) | (env->wim >> (env->nwindows - 1))) & |
| 820 |
((1LL << env->nwindows) - 1); |
| 821 |
#endif
|
| 822 |
|
| 823 |
/* restore the invalid window */
|
| 824 |
cwp1 = cpu_cwp_inc(env, env->cwp + 1);
|
| 825 |
sp_ptr = env->regbase[get_reg_index(env, cwp1, 6)];
|
| 826 |
#ifdef TARGET_SPARC64
|
| 827 |
if (sp_ptr & 3) |
| 828 |
sp_ptr += SPARC64_STACK_BIAS; |
| 829 |
#endif
|
| 830 |
#if defined(DEBUG_WIN)
|
| 831 |
printf("win_underflow: sp_ptr=0x" TARGET_ABI_FMT_lx " load_cwp=%d\n", |
| 832 |
sp_ptr, cwp1); |
| 833 |
#endif
|
| 834 |
for(i = 0; i < 16; i++) { |
| 835 |
/* FIXME - what to do if get_user() fails? */
|
| 836 |
get_user_ual(env->regbase[get_reg_index(env, cwp1, 8 + i)], sp_ptr);
|
| 837 |
sp_ptr += sizeof(abi_ulong);
|
| 838 |
} |
| 839 |
#ifdef TARGET_SPARC64
|
| 840 |
env->canrestore++; |
| 841 |
if (env->cleanwin < env->nwindows - 1) |
| 842 |
env->cleanwin++; |
| 843 |
env->cansave--; |
| 844 |
#else
|
| 845 |
env->wim = new_wim; |
| 846 |
#endif
|
| 847 |
} |
| 848 |
|
| 849 |
static void flush_windows(CPUSPARCState *env) |
| 850 |
{
|
| 851 |
int offset, cwp1;
|
| 852 |
|
| 853 |
offset = 1;
|
| 854 |
for(;;) {
|
| 855 |
/* if restore would invoke restore_window(), then we can stop */
|
| 856 |
cwp1 = cpu_cwp_inc(env, env->cwp + offset); |
| 857 |
#ifndef TARGET_SPARC64
|
| 858 |
if (env->wim & (1 << cwp1)) |
| 859 |
break;
|
| 860 |
#else
|
| 861 |
if (env->canrestore == 0) |
| 862 |
break;
|
| 863 |
env->cansave++; |
| 864 |
env->canrestore--; |
| 865 |
#endif
|
| 866 |
save_window_offset(env, cwp1); |
| 867 |
offset++; |
| 868 |
} |
| 869 |
cwp1 = cpu_cwp_inc(env, env->cwp + 1);
|
| 870 |
#ifndef TARGET_SPARC64
|
| 871 |
/* set wim so that restore will reload the registers */
|
| 872 |
env->wim = 1 << cwp1;
|
| 873 |
#endif
|
| 874 |
#if defined(DEBUG_WIN)
|
| 875 |
printf("flush_windows: nb=%d\n", offset - 1); |
| 876 |
#endif
|
| 877 |
} |
| 878 |
|
| 879 |
void cpu_loop (CPUSPARCState *env)
|
| 880 |
{
|
| 881 |
int trapnr, ret;
|
| 882 |
target_siginfo_t info; |
| 883 |
|
| 884 |
while (1) { |
| 885 |
trapnr = cpu_sparc_exec (env); |
| 886 |
|
| 887 |
switch (trapnr) {
|
| 888 |
#ifndef TARGET_SPARC64
|
| 889 |
case 0x88: |
| 890 |
case 0x90: |
| 891 |
#else
|
| 892 |
case 0x110: |
| 893 |
case 0x16d: |
| 894 |
#endif
|
| 895 |
ret = do_syscall (env, env->gregs[1],
|
| 896 |
env->regwptr[0], env->regwptr[1], |
| 897 |
env->regwptr[2], env->regwptr[3], |
| 898 |
env->regwptr[4], env->regwptr[5]); |
| 899 |
if ((unsigned int)ret >= (unsigned int)(-515)) { |
| 900 |
#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
|
| 901 |
env->xcc |= PSR_CARRY; |
| 902 |
#else
|
| 903 |
env->psr |= PSR_CARRY; |
| 904 |
#endif
|
| 905 |
ret = -ret; |
| 906 |
} else {
|
| 907 |
#if defined(TARGET_SPARC64) && !defined(TARGET_ABI32)
|
| 908 |
env->xcc &= ~PSR_CARRY; |
| 909 |
#else
|
| 910 |
env->psr &= ~PSR_CARRY; |
| 911 |
#endif
|
| 912 |
} |
| 913 |
env->regwptr[0] = ret;
|
| 914 |
/* next instruction */
|
| 915 |
env->pc = env->npc; |
| 916 |
env->npc = env->npc + 4;
|
| 917 |
break;
|
| 918 |
case 0x83: /* flush windows */ |
| 919 |
#ifdef TARGET_ABI32
|
| 920 |
case 0x103: |
| 921 |
#endif
|
| 922 |
flush_windows(env); |
| 923 |
/* next instruction */
|
| 924 |
env->pc = env->npc; |
| 925 |
env->npc = env->npc + 4;
|
| 926 |
break;
|
| 927 |
#ifndef TARGET_SPARC64
|
| 928 |
case TT_WIN_OVF: /* window overflow */ |
| 929 |
save_window(env); |
| 930 |
break;
|
| 931 |
case TT_WIN_UNF: /* window underflow */ |
| 932 |
restore_window(env); |
| 933 |
break;
|
| 934 |
case TT_TFAULT:
|
| 935 |
case TT_DFAULT:
|
| 936 |
{
|
| 937 |
info.si_signo = SIGSEGV; |
| 938 |
info.si_errno = 0;
|
| 939 |
/* XXX: check env->error_code */
|
| 940 |
info.si_code = TARGET_SEGV_MAPERR; |
| 941 |
info._sifields._sigfault._addr = env->mmuregs[4];
|
| 942 |
queue_signal(env, info.si_signo, &info); |
| 943 |
} |
| 944 |
break;
|
| 945 |
#else
|
| 946 |
case TT_SPILL: /* window overflow */ |
| 947 |
save_window(env); |
| 948 |
break;
|
| 949 |
case TT_FILL: /* window underflow */ |
| 950 |
restore_window(env); |
| 951 |
break;
|
| 952 |
case TT_TFAULT:
|
| 953 |
case TT_DFAULT:
|
| 954 |
{
|
| 955 |
info.si_signo = SIGSEGV; |
| 956 |
info.si_errno = 0;
|
| 957 |
/* XXX: check env->error_code */
|
| 958 |
info.si_code = TARGET_SEGV_MAPERR; |
| 959 |
if (trapnr == TT_DFAULT)
|
| 960 |
info._sifields._sigfault._addr = env->dmmuregs[4];
|
| 961 |
else
|
| 962 |
info._sifields._sigfault._addr = env->tsptr->tpc; |
| 963 |
queue_signal(env, info.si_signo, &info); |
| 964 |
} |
| 965 |
break;
|
| 966 |
#ifndef TARGET_ABI32
|
| 967 |
case 0x16e: |
| 968 |
flush_windows(env); |
| 969 |
sparc64_get_context(env); |
| 970 |
break;
|
| 971 |
case 0x16f: |
| 972 |
flush_windows(env); |
| 973 |
sparc64_set_context(env); |
| 974 |
break;
|
| 975 |
#endif
|
| 976 |
#endif
|
| 977 |
case EXCP_INTERRUPT:
|
| 978 |
/* just indicate that signals should be handled asap */
|
| 979 |
break;
|
| 980 |
case EXCP_DEBUG:
|
| 981 |
{
|
| 982 |
int sig;
|
| 983 |
|
| 984 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 985 |
if (sig)
|
| 986 |
{
|
| 987 |
info.si_signo = sig; |
| 988 |
info.si_errno = 0;
|
| 989 |
info.si_code = TARGET_TRAP_BRKPT; |
| 990 |
queue_signal(env, info.si_signo, &info); |
| 991 |
} |
| 992 |
} |
| 993 |
break;
|
| 994 |
default:
|
| 995 |
printf ("Unhandled trap: 0x%x\n", trapnr);
|
| 996 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 997 |
exit (1);
|
| 998 |
} |
| 999 |
process_pending_signals (env); |
| 1000 |
} |
| 1001 |
} |
| 1002 |
|
| 1003 |
#endif
|
| 1004 |
|
| 1005 |
#ifdef TARGET_PPC
|
| 1006 |
static inline uint64_t cpu_ppc_get_tb (CPUState *env) |
| 1007 |
{
|
| 1008 |
/* TO FIX */
|
| 1009 |
return 0; |
| 1010 |
} |
| 1011 |
|
| 1012 |
uint32_t cpu_ppc_load_tbl (CPUState *env) |
| 1013 |
{
|
| 1014 |
return cpu_ppc_get_tb(env) & 0xFFFFFFFF; |
| 1015 |
} |
| 1016 |
|
| 1017 |
uint32_t cpu_ppc_load_tbu (CPUState *env) |
| 1018 |
{
|
| 1019 |
return cpu_ppc_get_tb(env) >> 32; |
| 1020 |
} |
| 1021 |
|
| 1022 |
uint32_t cpu_ppc_load_atbl (CPUState *env) |
| 1023 |
{
|
| 1024 |
return cpu_ppc_get_tb(env) & 0xFFFFFFFF; |
| 1025 |
} |
| 1026 |
|
| 1027 |
uint32_t cpu_ppc_load_atbu (CPUState *env) |
| 1028 |
{
|
| 1029 |
return cpu_ppc_get_tb(env) >> 32; |
| 1030 |
} |
| 1031 |
|
| 1032 |
uint32_t cpu_ppc601_load_rtcu (CPUState *env) |
| 1033 |
__attribute__ (( alias ("cpu_ppc_load_tbu") ));
|
| 1034 |
|
| 1035 |
uint32_t cpu_ppc601_load_rtcl (CPUState *env) |
| 1036 |
{
|
| 1037 |
return cpu_ppc_load_tbl(env) & 0x3FFFFF80; |
| 1038 |
} |
| 1039 |
|
| 1040 |
/* XXX: to be fixed */
|
| 1041 |
int ppc_dcr_read (ppc_dcr_t *dcr_env, int dcrn, target_ulong *valp) |
| 1042 |
{
|
| 1043 |
return -1; |
| 1044 |
} |
| 1045 |
|
| 1046 |
int ppc_dcr_write (ppc_dcr_t *dcr_env, int dcrn, target_ulong val) |
| 1047 |
{
|
| 1048 |
return -1; |
| 1049 |
} |
| 1050 |
|
| 1051 |
#define EXCP_DUMP(env, fmt, ...) \
|
| 1052 |
do { \
|
| 1053 |
fprintf(stderr, fmt , ## __VA_ARGS__); \ |
| 1054 |
cpu_dump_state(env, stderr, fprintf, 0); \
|
| 1055 |
qemu_log(fmt, ## __VA_ARGS__); \ |
| 1056 |
log_cpu_state(env, 0); \
|
| 1057 |
} while (0) |
| 1058 |
|
| 1059 |
void cpu_loop(CPUPPCState *env)
|
| 1060 |
{
|
| 1061 |
target_siginfo_t info; |
| 1062 |
int trapnr;
|
| 1063 |
uint32_t ret; |
| 1064 |
|
| 1065 |
for(;;) {
|
| 1066 |
trapnr = cpu_ppc_exec(env); |
| 1067 |
switch(trapnr) {
|
| 1068 |
case POWERPC_EXCP_NONE:
|
| 1069 |
/* Just go on */
|
| 1070 |
break;
|
| 1071 |
case POWERPC_EXCP_CRITICAL: /* Critical input */ |
| 1072 |
cpu_abort(env, "Critical interrupt while in user mode. "
|
| 1073 |
"Aborting\n");
|
| 1074 |
break;
|
| 1075 |
case POWERPC_EXCP_MCHECK: /* Machine check exception */ |
| 1076 |
cpu_abort(env, "Machine check exception while in user mode. "
|
| 1077 |
"Aborting\n");
|
| 1078 |
break;
|
| 1079 |
case POWERPC_EXCP_DSI: /* Data storage exception */ |
| 1080 |
EXCP_DUMP(env, "Invalid data memory access: 0x" ADDRX "\n", |
| 1081 |
env->spr[SPR_DAR]); |
| 1082 |
/* XXX: check this. Seems bugged */
|
| 1083 |
switch (env->error_code & 0xFF000000) { |
| 1084 |
case 0x40000000: |
| 1085 |
info.si_signo = TARGET_SIGSEGV; |
| 1086 |
info.si_errno = 0;
|
| 1087 |
info.si_code = TARGET_SEGV_MAPERR; |
| 1088 |
break;
|
| 1089 |
case 0x04000000: |
| 1090 |
info.si_signo = TARGET_SIGILL; |
| 1091 |
info.si_errno = 0;
|
| 1092 |
info.si_code = TARGET_ILL_ILLADR; |
| 1093 |
break;
|
| 1094 |
case 0x08000000: |
| 1095 |
info.si_signo = TARGET_SIGSEGV; |
| 1096 |
info.si_errno = 0;
|
| 1097 |
info.si_code = TARGET_SEGV_ACCERR; |
| 1098 |
break;
|
| 1099 |
default:
|
| 1100 |
/* Let's send a regular segfault... */
|
| 1101 |
EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
|
| 1102 |
env->error_code); |
| 1103 |
info.si_signo = TARGET_SIGSEGV; |
| 1104 |
info.si_errno = 0;
|
| 1105 |
info.si_code = TARGET_SEGV_MAPERR; |
| 1106 |
break;
|
| 1107 |
} |
| 1108 |
info._sifields._sigfault._addr = env->nip; |
| 1109 |
queue_signal(env, info.si_signo, &info); |
| 1110 |
break;
|
| 1111 |
case POWERPC_EXCP_ISI: /* Instruction storage exception */ |
| 1112 |
EXCP_DUMP(env, "Invalid instruction fetch: 0x\n" ADDRX "\n", |
| 1113 |
env->spr[SPR_SRR0]); |
| 1114 |
/* XXX: check this */
|
| 1115 |
switch (env->error_code & 0xFF000000) { |
| 1116 |
case 0x40000000: |
| 1117 |
info.si_signo = TARGET_SIGSEGV; |
| 1118 |
info.si_errno = 0;
|
| 1119 |
info.si_code = TARGET_SEGV_MAPERR; |
| 1120 |
break;
|
| 1121 |
case 0x10000000: |
| 1122 |
case 0x08000000: |
| 1123 |
info.si_signo = TARGET_SIGSEGV; |
| 1124 |
info.si_errno = 0;
|
| 1125 |
info.si_code = TARGET_SEGV_ACCERR; |
| 1126 |
break;
|
| 1127 |
default:
|
| 1128 |
/* Let's send a regular segfault... */
|
| 1129 |
EXCP_DUMP(env, "Invalid segfault errno (%02x)\n",
|
| 1130 |
env->error_code); |
| 1131 |
info.si_signo = TARGET_SIGSEGV; |
| 1132 |
info.si_errno = 0;
|
| 1133 |
info.si_code = TARGET_SEGV_MAPERR; |
| 1134 |
break;
|
| 1135 |
} |
| 1136 |
info._sifields._sigfault._addr = env->nip - 4;
|
| 1137 |
queue_signal(env, info.si_signo, &info); |
| 1138 |
break;
|
| 1139 |
case POWERPC_EXCP_EXTERNAL: /* External input */ |
| 1140 |
cpu_abort(env, "External interrupt while in user mode. "
|
| 1141 |
"Aborting\n");
|
| 1142 |
break;
|
| 1143 |
case POWERPC_EXCP_ALIGN: /* Alignment exception */ |
| 1144 |
EXCP_DUMP(env, "Unaligned memory access\n");
|
| 1145 |
/* XXX: check this */
|
| 1146 |
info.si_signo = TARGET_SIGBUS; |
| 1147 |
info.si_errno = 0;
|
| 1148 |
info.si_code = TARGET_BUS_ADRALN; |
| 1149 |
info._sifields._sigfault._addr = env->nip - 4;
|
| 1150 |
queue_signal(env, info.si_signo, &info); |
| 1151 |
break;
|
| 1152 |
case POWERPC_EXCP_PROGRAM: /* Program exception */ |
| 1153 |
/* XXX: check this */
|
| 1154 |
switch (env->error_code & ~0xF) { |
| 1155 |
case POWERPC_EXCP_FP:
|
| 1156 |
EXCP_DUMP(env, "Floating point program exception\n");
|
| 1157 |
info.si_signo = TARGET_SIGFPE; |
| 1158 |
info.si_errno = 0;
|
| 1159 |
switch (env->error_code & 0xF) { |
| 1160 |
case POWERPC_EXCP_FP_OX:
|
| 1161 |
info.si_code = TARGET_FPE_FLTOVF; |
| 1162 |
break;
|
| 1163 |
case POWERPC_EXCP_FP_UX:
|
| 1164 |
info.si_code = TARGET_FPE_FLTUND; |
| 1165 |
break;
|
| 1166 |
case POWERPC_EXCP_FP_ZX:
|
| 1167 |
case POWERPC_EXCP_FP_VXZDZ:
|
| 1168 |
info.si_code = TARGET_FPE_FLTDIV; |
| 1169 |
break;
|
| 1170 |
case POWERPC_EXCP_FP_XX:
|
| 1171 |
info.si_code = TARGET_FPE_FLTRES; |
| 1172 |
break;
|
| 1173 |
case POWERPC_EXCP_FP_VXSOFT:
|
| 1174 |
info.si_code = TARGET_FPE_FLTINV; |
| 1175 |
break;
|
| 1176 |
case POWERPC_EXCP_FP_VXSNAN:
|
| 1177 |
case POWERPC_EXCP_FP_VXISI:
|
| 1178 |
case POWERPC_EXCP_FP_VXIDI:
|
| 1179 |
case POWERPC_EXCP_FP_VXIMZ:
|
| 1180 |
case POWERPC_EXCP_FP_VXVC:
|
| 1181 |
case POWERPC_EXCP_FP_VXSQRT:
|
| 1182 |
case POWERPC_EXCP_FP_VXCVI:
|
| 1183 |
info.si_code = TARGET_FPE_FLTSUB; |
| 1184 |
break;
|
| 1185 |
default:
|
| 1186 |
EXCP_DUMP(env, "Unknown floating point exception (%02x)\n",
|
| 1187 |
env->error_code); |
| 1188 |
break;
|
| 1189 |
} |
| 1190 |
break;
|
| 1191 |
case POWERPC_EXCP_INVAL:
|
| 1192 |
EXCP_DUMP(env, "Invalid instruction\n");
|
| 1193 |
info.si_signo = TARGET_SIGILL; |
| 1194 |
info.si_errno = 0;
|
| 1195 |
switch (env->error_code & 0xF) { |
| 1196 |
case POWERPC_EXCP_INVAL_INVAL:
|
| 1197 |
info.si_code = TARGET_ILL_ILLOPC; |
| 1198 |
break;
|
| 1199 |
case POWERPC_EXCP_INVAL_LSWX:
|
| 1200 |
info.si_code = TARGET_ILL_ILLOPN; |
| 1201 |
break;
|
| 1202 |
case POWERPC_EXCP_INVAL_SPR:
|
| 1203 |
info.si_code = TARGET_ILL_PRVREG; |
| 1204 |
break;
|
| 1205 |
case POWERPC_EXCP_INVAL_FP:
|
| 1206 |
info.si_code = TARGET_ILL_COPROC; |
| 1207 |
break;
|
| 1208 |
default:
|
| 1209 |
EXCP_DUMP(env, "Unknown invalid operation (%02x)\n",
|
| 1210 |
env->error_code & 0xF);
|
| 1211 |
info.si_code = TARGET_ILL_ILLADR; |
| 1212 |
break;
|
| 1213 |
} |
| 1214 |
break;
|
| 1215 |
case POWERPC_EXCP_PRIV:
|
| 1216 |
EXCP_DUMP(env, "Privilege violation\n");
|
| 1217 |
info.si_signo = TARGET_SIGILL; |
| 1218 |
info.si_errno = 0;
|
| 1219 |
switch (env->error_code & 0xF) { |
| 1220 |
case POWERPC_EXCP_PRIV_OPC:
|
| 1221 |
info.si_code = TARGET_ILL_PRVOPC; |
| 1222 |
break;
|
| 1223 |
case POWERPC_EXCP_PRIV_REG:
|
| 1224 |
info.si_code = TARGET_ILL_PRVREG; |
| 1225 |
break;
|
| 1226 |
default:
|
| 1227 |
EXCP_DUMP(env, "Unknown privilege violation (%02x)\n",
|
| 1228 |
env->error_code & 0xF);
|
| 1229 |
info.si_code = TARGET_ILL_PRVOPC; |
| 1230 |
break;
|
| 1231 |
} |
| 1232 |
break;
|
| 1233 |
case POWERPC_EXCP_TRAP:
|
| 1234 |
cpu_abort(env, "Tried to call a TRAP\n");
|
| 1235 |
break;
|
| 1236 |
default:
|
| 1237 |
/* Should not happen ! */
|
| 1238 |
cpu_abort(env, "Unknown program exception (%02x)\n",
|
| 1239 |
env->error_code); |
| 1240 |
break;
|
| 1241 |
} |
| 1242 |
info._sifields._sigfault._addr = env->nip - 4;
|
| 1243 |
queue_signal(env, info.si_signo, &info); |
| 1244 |
break;
|
| 1245 |
case POWERPC_EXCP_FPU: /* Floating-point unavailable exception */ |
| 1246 |
EXCP_DUMP(env, "No floating point allowed\n");
|
| 1247 |
info.si_signo = TARGET_SIGILL; |
| 1248 |
info.si_errno = 0;
|
| 1249 |
info.si_code = TARGET_ILL_COPROC; |
| 1250 |
info._sifields._sigfault._addr = env->nip - 4;
|
| 1251 |
queue_signal(env, info.si_signo, &info); |
| 1252 |
break;
|
| 1253 |
case POWERPC_EXCP_SYSCALL: /* System call exception */ |
| 1254 |
cpu_abort(env, "Syscall exception while in user mode. "
|
| 1255 |
"Aborting\n");
|
| 1256 |
break;
|
| 1257 |
case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */ |
| 1258 |
EXCP_DUMP(env, "No APU instruction allowed\n");
|
| 1259 |
info.si_signo = TARGET_SIGILL; |
| 1260 |
info.si_errno = 0;
|
| 1261 |
info.si_code = TARGET_ILL_COPROC; |
| 1262 |
info._sifields._sigfault._addr = env->nip - 4;
|
| 1263 |
queue_signal(env, info.si_signo, &info); |
| 1264 |
break;
|
| 1265 |
case POWERPC_EXCP_DECR: /* Decrementer exception */ |
| 1266 |
cpu_abort(env, "Decrementer interrupt while in user mode. "
|
| 1267 |
"Aborting\n");
|
| 1268 |
break;
|
| 1269 |
case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */ |
| 1270 |
cpu_abort(env, "Fix interval timer interrupt while in user mode. "
|
| 1271 |
"Aborting\n");
|
| 1272 |
break;
|
| 1273 |
case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */ |
| 1274 |
cpu_abort(env, "Watchdog timer interrupt while in user mode. "
|
| 1275 |
"Aborting\n");
|
| 1276 |
break;
|
| 1277 |
case POWERPC_EXCP_DTLB: /* Data TLB error */ |
| 1278 |
cpu_abort(env, "Data TLB exception while in user mode. "
|
| 1279 |
"Aborting\n");
|
| 1280 |
break;
|
| 1281 |
case POWERPC_EXCP_ITLB: /* Instruction TLB error */ |
| 1282 |
cpu_abort(env, "Instruction TLB exception while in user mode. "
|
| 1283 |
"Aborting\n");
|
| 1284 |
break;
|
| 1285 |
case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */ |
| 1286 |
EXCP_DUMP(env, "No SPE/floating-point instruction allowed\n");
|
| 1287 |
info.si_signo = TARGET_SIGILL; |
| 1288 |
info.si_errno = 0;
|
| 1289 |
info.si_code = TARGET_ILL_COPROC; |
| 1290 |
info._sifields._sigfault._addr = env->nip - 4;
|
| 1291 |
queue_signal(env, info.si_signo, &info); |
| 1292 |
break;
|
| 1293 |
case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */ |
| 1294 |
cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
|
| 1295 |
break;
|
| 1296 |
case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */ |
| 1297 |
cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
|
| 1298 |
break;
|
| 1299 |
case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */ |
| 1300 |
cpu_abort(env, "Performance monitor exception not handled\n");
|
| 1301 |
break;
|
| 1302 |
case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */ |
| 1303 |
cpu_abort(env, "Doorbell interrupt while in user mode. "
|
| 1304 |
"Aborting\n");
|
| 1305 |
break;
|
| 1306 |
case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */ |
| 1307 |
cpu_abort(env, "Doorbell critical interrupt while in user mode. "
|
| 1308 |
"Aborting\n");
|
| 1309 |
break;
|
| 1310 |
case POWERPC_EXCP_RESET: /* System reset exception */ |
| 1311 |
cpu_abort(env, "Reset interrupt while in user mode. "
|
| 1312 |
"Aborting\n");
|
| 1313 |
break;
|
| 1314 |
case POWERPC_EXCP_DSEG: /* Data segment exception */ |
| 1315 |
cpu_abort(env, "Data segment exception while in user mode. "
|
| 1316 |
"Aborting\n");
|
| 1317 |
break;
|
| 1318 |
case POWERPC_EXCP_ISEG: /* Instruction segment exception */ |
| 1319 |
cpu_abort(env, "Instruction segment exception "
|
| 1320 |
"while in user mode. Aborting\n");
|
| 1321 |
break;
|
| 1322 |
/* PowerPC 64 with hypervisor mode support */
|
| 1323 |
case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */ |
| 1324 |
cpu_abort(env, "Hypervisor decrementer interrupt "
|
| 1325 |
"while in user mode. Aborting\n");
|
| 1326 |
break;
|
| 1327 |
case POWERPC_EXCP_TRACE: /* Trace exception */ |
| 1328 |
/* Nothing to do:
|
| 1329 |
* we use this exception to emulate step-by-step execution mode.
|
| 1330 |
*/
|
| 1331 |
break;
|
| 1332 |
/* PowerPC 64 with hypervisor mode support */
|
| 1333 |
case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */ |
| 1334 |
cpu_abort(env, "Hypervisor data storage exception "
|
| 1335 |
"while in user mode. Aborting\n");
|
| 1336 |
break;
|
| 1337 |
case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */ |
| 1338 |
cpu_abort(env, "Hypervisor instruction storage exception "
|
| 1339 |
"while in user mode. Aborting\n");
|
| 1340 |
break;
|
| 1341 |
case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */ |
| 1342 |
cpu_abort(env, "Hypervisor data segment exception "
|
| 1343 |
"while in user mode. Aborting\n");
|
| 1344 |
break;
|
| 1345 |
case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */ |
| 1346 |
cpu_abort(env, "Hypervisor instruction segment exception "
|
| 1347 |
"while in user mode. Aborting\n");
|
| 1348 |
break;
|
| 1349 |
case POWERPC_EXCP_VPU: /* Vector unavailable exception */ |
| 1350 |
EXCP_DUMP(env, "No Altivec instructions allowed\n");
|
| 1351 |
info.si_signo = TARGET_SIGILL; |
| 1352 |
info.si_errno = 0;
|
| 1353 |
info.si_code = TARGET_ILL_COPROC; |
| 1354 |
info._sifields._sigfault._addr = env->nip - 4;
|
| 1355 |
queue_signal(env, info.si_signo, &info); |
| 1356 |
break;
|
| 1357 |
case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */ |
| 1358 |
cpu_abort(env, "Programable interval timer interrupt "
|
| 1359 |
"while in user mode. Aborting\n");
|
| 1360 |
break;
|
| 1361 |
case POWERPC_EXCP_IO: /* IO error exception */ |
| 1362 |
cpu_abort(env, "IO error exception while in user mode. "
|
| 1363 |
"Aborting\n");
|
| 1364 |
break;
|
| 1365 |
case POWERPC_EXCP_RUNM: /* Run mode exception */ |
| 1366 |
cpu_abort(env, "Run mode exception while in user mode. "
|
| 1367 |
"Aborting\n");
|
| 1368 |
break;
|
| 1369 |
case POWERPC_EXCP_EMUL: /* Emulation trap exception */ |
| 1370 |
cpu_abort(env, "Emulation trap exception not handled\n");
|
| 1371 |
break;
|
| 1372 |
case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */ |
| 1373 |
cpu_abort(env, "Instruction fetch TLB exception "
|
| 1374 |
"while in user-mode. Aborting");
|
| 1375 |
break;
|
| 1376 |
case POWERPC_EXCP_DLTLB: /* Data load TLB miss */ |
| 1377 |
cpu_abort(env, "Data load TLB exception while in user-mode. "
|
| 1378 |
"Aborting");
|
| 1379 |
break;
|
| 1380 |
case POWERPC_EXCP_DSTLB: /* Data store TLB miss */ |
| 1381 |
cpu_abort(env, "Data store TLB exception while in user-mode. "
|
| 1382 |
"Aborting");
|
| 1383 |
break;
|
| 1384 |
case POWERPC_EXCP_FPA: /* Floating-point assist exception */ |
| 1385 |
cpu_abort(env, "Floating-point assist exception not handled\n");
|
| 1386 |
break;
|
| 1387 |
case POWERPC_EXCP_IABR: /* Instruction address breakpoint */ |
| 1388 |
cpu_abort(env, "Instruction address breakpoint exception "
|
| 1389 |
"not handled\n");
|
| 1390 |
break;
|
| 1391 |
case POWERPC_EXCP_SMI: /* System management interrupt */ |
| 1392 |
cpu_abort(env, "System management interrupt while in user mode. "
|
| 1393 |
"Aborting\n");
|
| 1394 |
break;
|
| 1395 |
case POWERPC_EXCP_THERM: /* Thermal interrupt */ |
| 1396 |
cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
|
| 1397 |
"Aborting\n");
|
| 1398 |
break;
|
| 1399 |
case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */ |
| 1400 |
cpu_abort(env, "Performance monitor exception not handled\n");
|
| 1401 |
break;
|
| 1402 |
case POWERPC_EXCP_VPUA: /* Vector assist exception */ |
| 1403 |
cpu_abort(env, "Vector assist exception not handled\n");
|
| 1404 |
break;
|
| 1405 |
case POWERPC_EXCP_SOFTP: /* Soft patch exception */ |
| 1406 |
cpu_abort(env, "Soft patch exception not handled\n");
|
| 1407 |
break;
|
| 1408 |
case POWERPC_EXCP_MAINT: /* Maintenance exception */ |
| 1409 |
cpu_abort(env, "Maintenance exception while in user mode. "
|
| 1410 |
"Aborting\n");
|
| 1411 |
break;
|
| 1412 |
case POWERPC_EXCP_STOP: /* stop translation */ |
| 1413 |
/* We did invalidate the instruction cache. Go on */
|
| 1414 |
break;
|
| 1415 |
case POWERPC_EXCP_BRANCH: /* branch instruction: */ |
| 1416 |
/* We just stopped because of a branch. Go on */
|
| 1417 |
break;
|
| 1418 |
case POWERPC_EXCP_SYSCALL_USER:
|
| 1419 |
/* system call in user-mode emulation */
|
| 1420 |
/* WARNING:
|
| 1421 |
* PPC ABI uses overflow flag in cr0 to signal an error
|
| 1422 |
* in syscalls.
|
| 1423 |
*/
|
| 1424 |
#if 0
|
| 1425 |
printf("syscall %d 0x%08x 0x%08x 0x%08x 0x%08x\n", env->gpr[0],
|
| 1426 |
env->gpr[3], env->gpr[4], env->gpr[5], env->gpr[6]);
|
| 1427 |
#endif
|
| 1428 |
env->crf[0] &= ~0x1; |
| 1429 |
ret = do_syscall(env, env->gpr[0], env->gpr[3], env->gpr[4], |
| 1430 |
env->gpr[5], env->gpr[6], env->gpr[7], |
| 1431 |
env->gpr[8]);
|
| 1432 |
if (ret == (uint32_t)(-TARGET_QEMU_ESIGRETURN)) {
|
| 1433 |
/* Returning from a successful sigreturn syscall.
|
| 1434 |
Avoid corrupting register state. */
|
| 1435 |
break;
|
| 1436 |
} |
| 1437 |
if (ret > (uint32_t)(-515)) { |
| 1438 |
env->crf[0] |= 0x1; |
| 1439 |
ret = -ret; |
| 1440 |
} |
| 1441 |
env->gpr[3] = ret;
|
| 1442 |
#if 0
|
| 1443 |
printf("syscall returned 0x%08x (%d)\n", ret, ret);
|
| 1444 |
#endif
|
| 1445 |
break;
|
| 1446 |
case EXCP_DEBUG:
|
| 1447 |
{
|
| 1448 |
int sig;
|
| 1449 |
|
| 1450 |
sig = gdb_handlesig(env, TARGET_SIGTRAP); |
| 1451 |
if (sig) {
|
| 1452 |
info.si_signo = sig; |
| 1453 |
info.si_errno = 0;
|
| 1454 |
info.si_code = TARGET_TRAP_BRKPT; |
| 1455 |
queue_signal(env, info.si_signo, &info); |
| 1456 |
} |
| 1457 |
} |
| 1458 |
break;
|
| 1459 |
case EXCP_INTERRUPT:
|
| 1460 |
/* just indicate that signals should be handled asap */
|
| 1461 |
break;
|
| 1462 |
default:
|
| 1463 |
cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
|
| 1464 |
break;
|
| 1465 |
} |
| 1466 |
process_pending_signals(env); |
| 1467 |
} |
| 1468 |
} |
| 1469 |
#endif
|
| 1470 |
|
| 1471 |
#ifdef TARGET_MIPS
|
| 1472 |
|
| 1473 |
#define MIPS_SYS(name, args) args,
|
| 1474 |
|
| 1475 |
static const uint8_t mips_syscall_args[] = { |
| 1476 |
MIPS_SYS(sys_syscall , 0) /* 4000 */ |
| 1477 |
MIPS_SYS(sys_exit , 1)
|
| 1478 |
MIPS_SYS(sys_fork , 0)
|
| 1479 |
MIPS_SYS(sys_read , 3)
|
| 1480 |
MIPS_SYS(sys_write , 3)
|
| 1481 |
MIPS_SYS(sys_open , 3) /* 4005 */ |
| 1482 |
MIPS_SYS(sys_close , 1)
|
| 1483 |
MIPS_SYS(sys_waitpid , 3)
|
| 1484 |
MIPS_SYS(sys_creat , 2)
|
| 1485 |
MIPS_SYS(sys_link , 2)
|
| 1486 |
MIPS_SYS(sys_unlink , 1) /* 4010 */ |
| 1487 |
MIPS_SYS(sys_execve , 0)
|
| 1488 |
MIPS_SYS(sys_chdir , 1)
|
| 1489 |
MIPS_SYS(sys_time , 1)
|
| 1490 |
MIPS_SYS(sys_mknod , 3)
|
| 1491 |
MIPS_SYS(sys_chmod , 2) /* 4015 */ |
| 1492 |
MIPS_SYS(sys_lchown , 3)
|
| 1493 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 1494 |
MIPS_SYS(sys_ni_syscall , 0) /* was sys_stat */ |
| 1495 |
MIPS_SYS(sys_lseek , 3)
|
| 1496 |
MIPS_SYS(sys_getpid , 0) /* 4020 */ |
| 1497 |
MIPS_SYS(sys_mount , 5)
|
| 1498 |
MIPS_SYS(sys_oldumount , 1)
|
| 1499 |
MIPS_SYS(sys_setuid , 1)
|
| 1500 |
MIPS_SYS(sys_getuid , 0)
|
| 1501 |
MIPS_SYS(sys_stime , 1) /* 4025 */ |
| 1502 |
MIPS_SYS(sys_ptrace , 4)
|
| 1503 |
MIPS_SYS(sys_alarm , 1)
|
| 1504 |
MIPS_SYS(sys_ni_syscall , 0) /* was sys_fstat */ |
| 1505 |
MIPS_SYS(sys_pause , 0)
|
| 1506 |
MIPS_SYS(sys_utime , 2) /* 4030 */ |
| 1507 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 1508 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 1509 |
MIPS_SYS(sys_access , 2)
|
| 1510 |
MIPS_SYS(sys_nice , 1)
|
| 1511 |
MIPS_SYS(sys_ni_syscall , 0) /* 4035 */ |
| 1512 |
MIPS_SYS(sys_sync , 0)
|
| 1513 |
MIPS_SYS(sys_kill , 2)
|
| 1514 |
MIPS_SYS(sys_rename , 2)
|
| 1515 |
MIPS_SYS(sys_mkdir , 2)
|
| 1516 |
MIPS_SYS(sys_rmdir , 1) /* 4040 */ |
| 1517 |
MIPS_SYS(sys_dup , 1)
|
| 1518 |
MIPS_SYS(sys_pipe , 0)
|
| 1519 |
MIPS_SYS(sys_times , 1)
|
| 1520 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 1521 |
MIPS_SYS(sys_brk , 1) /* 4045 */ |
| 1522 |
MIPS_SYS(sys_setgid , 1)
|
| 1523 |
MIPS_SYS(sys_getgid , 0)
|
| 1524 |
MIPS_SYS(sys_ni_syscall , 0) /* was signal(2) */ |
| 1525 |
MIPS_SYS(sys_geteuid , 0)
|
| 1526 |
MIPS_SYS(sys_getegid , 0) /* 4050 */ |
| 1527 |
MIPS_SYS(sys_acct , 0)
|
| 1528 |
MIPS_SYS(sys_umount , 2)
|
| 1529 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 1530 |
MIPS_SYS(sys_ioctl , 3)
|
| 1531 |
MIPS_SYS(sys_fcntl , 3) /* 4055 */ |
| 1532 |
MIPS_SYS(sys_ni_syscall , 2)
|
| 1533 |
MIPS_SYS(sys_setpgid , 2)
|
| 1534 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 1535 |
MIPS_SYS(sys_olduname , 1)
|
| 1536 |
MIPS_SYS(sys_umask , 1) /* 4060 */ |
| 1537 |
MIPS_SYS(sys_chroot , 1)
|
| 1538 |
MIPS_SYS(sys_ustat , 2)
|
| 1539 |
MIPS_SYS(sys_dup2 , 2)
|
| 1540 |
MIPS_SYS(sys_getppid , 0)
|
| 1541 |
MIPS_SYS(sys_getpgrp , 0) /* 4065 */ |
| 1542 |
MIPS_SYS(sys_setsid , 0)
|
| 1543 |
MIPS_SYS(sys_sigaction , 3)
|
| 1544 |
MIPS_SYS(sys_sgetmask , 0)
|
| 1545 |
MIPS_SYS(sys_ssetmask , 1)
|
| 1546 |
MIPS_SYS(sys_setreuid , 2) /* 4070 */ |
| 1547 |
MIPS_SYS(sys_setregid , 2)
|
| 1548 |
MIPS_SYS(sys_sigsuspend , 0)
|
| 1549 |
MIPS_SYS(sys_sigpending , 1)
|
| 1550 |
MIPS_SYS(sys_sethostname , 2)
|
| 1551 |
MIPS_SYS(sys_setrlimit , 2) /* 4075 */ |
| 1552 |
MIPS_SYS(sys_getrlimit , 2)
|
| 1553 |
MIPS_SYS(sys_getrusage , 2)
|
| 1554 |
MIPS_SYS(sys_gettimeofday, 2)
|
| 1555 |
MIPS_SYS(sys_settimeofday, 2)
|
| 1556 |
MIPS_SYS(sys_getgroups , 2) /* 4080 */ |
| 1557 |
MIPS_SYS(sys_setgroups , 2)
|
| 1558 |
MIPS_SYS(sys_ni_syscall , 0) /* old_select */ |
| 1559 |
MIPS_SYS(sys_symlink , 2)
|
| 1560 |
MIPS_SYS(sys_ni_syscall , 0) /* was sys_lstat */ |
| 1561 |
MIPS_SYS(sys_readlink , 3) /* 4085 */ |
| 1562 |
MIPS_SYS(sys_uselib , 1)
|
| 1563 |
MIPS_SYS(sys_swapon , 2)
|
| 1564 |
MIPS_SYS(sys_reboot , 3)
|
| 1565 |
MIPS_SYS(old_readdir , 3)
|
| 1566 |
MIPS_SYS(old_mmap , 6) /* 4090 */ |
| 1567 |
MIPS_SYS(sys_munmap , 2)
|
| 1568 |
MIPS_SYS(sys_truncate , 2)
|
| 1569 |
MIPS_SYS(sys_ftruncate , 2)
|
| 1570 |
MIPS_SYS(sys_fchmod , 2)
|
| 1571 |
MIPS_SYS(sys_fchown , 3) /* 4095 */ |
| 1572 |
MIPS_SYS(sys_getpriority , 2)
|
| 1573 |
MIPS_SYS(sys_setpriority , 3)
|
| 1574 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 1575 |
MIPS_SYS(sys_statfs , 2)
|
| 1576 |
MIPS_SYS(sys_fstatfs , 2) /* 4100 */ |
| 1577 |
MIPS_SYS(sys_ni_syscall , 0) /* was ioperm(2) */ |
| 1578 |
MIPS_SYS(sys_socketcall , 2)
|
| 1579 |
MIPS_SYS(sys_syslog , 3)
|
| 1580 |
MIPS_SYS(sys_setitimer , 3)
|
| 1581 |
MIPS_SYS(sys_getitimer , 2) /* 4105 */ |
| 1582 |
MIPS_SYS(sys_newstat , 2)
|
| 1583 |
MIPS_SYS(sys_newlstat , 2)
|
| 1584 |
MIPS_SYS(sys_newfstat , 2)
|
| 1585 |
MIPS_SYS(sys_uname , 1)
|
| 1586 |
MIPS_SYS(sys_ni_syscall , 0) /* 4110 was iopl(2) */ |
| 1587 |
MIPS_SYS(sys_vhangup , 0)
|
| 1588 |
MIPS_SYS(sys_ni_syscall , 0) /* was sys_idle() */ |
| 1589 |
MIPS_SYS(sys_ni_syscall , 0) /* was sys_vm86 */ |
| 1590 |
MIPS_SYS(sys_wait4 , 4)
|
| 1591 |
MIPS_SYS(sys_swapoff , 1) /* 4115 */ |
| 1592 |
MIPS_SYS(sys_sysinfo , 1)
|
| 1593 |
MIPS_SYS(sys_ipc , 6)
|
| 1594 |
MIPS_SYS(sys_fsync , 1)
|
| 1595 |
MIPS_SYS(sys_sigreturn , 0)
|
| 1596 |
MIPS_SYS(sys_clone , 6) /* 4120 */ |
| 1597 |
MIPS_SYS(sys_setdomainname, 2)
|
| 1598 |
MIPS_SYS(sys_newuname , 1)
|
| 1599 |
MIPS_SYS(sys_ni_syscall , 0) /* sys_modify_ldt */ |
| 1600 |
MIPS_SYS(sys_adjtimex , 1)
|
| 1601 |
MIPS_SYS(sys_mprotect , 3) /* 4125 */ |
| 1602 |
MIPS_SYS(sys_sigprocmask , 3)
|
| 1603 |
MIPS_SYS(sys_ni_syscall , 0) /* was create_module */ |
| 1604 |
MIPS_SYS(sys_init_module , 5)
|
| 1605 |
MIPS_SYS(sys_delete_module, 1)
|
| 1606 |
MIPS_SYS(sys_ni_syscall , 0) /* 4130 was get_kernel_syms */ |
| 1607 |
MIPS_SYS(sys_quotactl , 0)
|
| 1608 |
MIPS_SYS(sys_getpgid , 1)
|
| 1609 |
MIPS_SYS(sys_fchdir , 1)
|
| 1610 |
MIPS_SYS(sys_bdflush , 2)
|
| 1611 |
MIPS_SYS(sys_sysfs , 3) /* 4135 */ |
| 1612 |
MIPS_SYS(sys_personality , 1)
|
| 1613 |
MIPS_SYS(sys_ni_syscall , 0) /* for afs_syscall */ |
| 1614 |
MIPS_SYS(sys_setfsuid , 1)
|
| 1615 |
MIPS_SYS(sys_setfsgid , 1)
|
| 1616 |
MIPS_SYS(sys_llseek , 5) /* 4140 */ |
| 1617 |
MIPS_SYS(sys_getdents , 3)
|
| 1618 |
MIPS_SYS(sys_select , 5)
|
| 1619 |
MIPS_SYS(sys_flock , 2)
|
| 1620 |
MIPS_SYS(sys_msync , 3)
|
| 1621 |
MIPS_SYS(sys_readv , 3) /* 4145 */ |
| 1622 |
MIPS_SYS(sys_writev , 3)
|
| 1623 |
MIPS_SYS(sys_cacheflush , 3)
|
| 1624 |
MIPS_SYS(sys_cachectl , 3)
|
| 1625 |
MIPS_SYS(sys_sysmips , 4)
|
| 1626 |
MIPS_SYS(sys_ni_syscall , 0) /* 4150 */ |
| 1627 |
MIPS_SYS(sys_getsid , 1)
|
| 1628 |
MIPS_SYS(sys_fdatasync , 0)
|
| 1629 |
MIPS_SYS(sys_sysctl , 1)
|
| 1630 |
MIPS_SYS(sys_mlock , 2)
|
| 1631 |
MIPS_SYS(sys_munlock , 2) /* 4155 */ |
| 1632 |
MIPS_SYS(sys_mlockall , 1)
|
| 1633 |
MIPS_SYS(sys_munlockall , 0)
|
| 1634 |
MIPS_SYS(sys_sched_setparam, 2)
|
| 1635 |
MIPS_SYS(sys_sched_getparam, 2)
|
| 1636 |
MIPS_SYS(sys_sched_setscheduler, 3) /* 4160 */ |
| 1637 |
MIPS_SYS(sys_sched_getscheduler, 1)
|
| 1638 |
MIPS_SYS(sys_sched_yield , 0)
|
| 1639 |
MIPS_SYS(sys_sched_get_priority_max, 1)
|
| 1640 |
MIPS_SYS(sys_sched_get_priority_min, 1)
|
| 1641 |
MIPS_SYS(sys_sched_rr_get_interval, 2) /* 4165 */ |
| 1642 |
MIPS_SYS(sys_nanosleep, 2)
|
| 1643 |
MIPS_SYS(sys_mremap , 4)
|
| 1644 |
MIPS_SYS(sys_accept , 3)
|
| 1645 |
MIPS_SYS(sys_bind , 3)
|
| 1646 |
MIPS_SYS(sys_connect , 3) /* 4170 */ |
| 1647 |
MIPS_SYS(sys_getpeername , 3)
|
| 1648 |
MIPS_SYS(sys_getsockname , 3)
|
| 1649 |
MIPS_SYS(sys_getsockopt , 5)
|
| 1650 |
MIPS_SYS(sys_listen , 2)
|
| 1651 |
MIPS_SYS(sys_recv , 4) /* 4175 */ |
| 1652 |
MIPS_SYS(sys_recvfrom , 6)
|
| 1653 |
MIPS_SYS(sys_recvmsg , 3)
|
| 1654 |
MIPS_SYS(sys_send , 4)
|
| 1655 |
MIPS_SYS(sys_sendmsg , 3)
|
| 1656 |
MIPS_SYS(sys_sendto , 6) /* 4180 */ |
| 1657 |
MIPS_SYS(sys_setsockopt , 5)
|
| 1658 |
MIPS_SYS(sys_shutdown , 2)
|
| 1659 |
MIPS_SYS(sys_socket , 3)
|
| 1660 |
MIPS_SYS(sys_socketpair , 4)
|
| 1661 |
MIPS_SYS(sys_setresuid , 3) /* 4185 */ |
| 1662 |
MIPS_SYS(sys_getresuid , 3)
|
| 1663 |
MIPS_SYS(sys_ni_syscall , 0) /* was sys_query_module */ |
| 1664 |
MIPS_SYS(sys_poll , 3)
|
| 1665 |
MIPS_SYS(sys_nfsservctl , 3)
|
| 1666 |
MIPS_SYS(sys_setresgid , 3) /* 4190 */ |
| 1667 |
MIPS_SYS(sys_getresgid , 3)
|
| 1668 |
MIPS_SYS(sys_prctl , 5)
|
| 1669 |
MIPS_SYS(sys_rt_sigreturn, 0)
|
| 1670 |
MIPS_SYS(sys_rt_sigaction, 4)
|
| 1671 |
MIPS_SYS(sys_rt_sigprocmask, 4) /* 4195 */ |
| 1672 |
MIPS_SYS(sys_rt_sigpending, 2)
|
| 1673 |
MIPS_SYS(sys_rt_sigtimedwait, 4)
|
| 1674 |
MIPS_SYS(sys_rt_sigqueueinfo, 3)
|
| 1675 |
MIPS_SYS(sys_rt_sigsuspend, 0)
|
| 1676 |
MIPS_SYS(sys_pread64 , 6) /* 4200 */ |
| 1677 |
MIPS_SYS(sys_pwrite64 , 6)
|
| 1678 |
MIPS_SYS(sys_chown , 3)
|
| 1679 |
MIPS_SYS(sys_getcwd , 2)
|
| 1680 |
MIPS_SYS(sys_capget , 2)
|
| 1681 |
MIPS_SYS(sys_capset , 2) /* 4205 */ |
| 1682 |
MIPS_SYS(sys_sigaltstack , 0)
|
| 1683 |
MIPS_SYS(sys_sendfile , 4)
|
| 1684 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 1685 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 1686 |
MIPS_SYS(sys_mmap2 , 6) /* 4210 */ |
| 1687 |
MIPS_SYS(sys_truncate64 , 4)
|
| 1688 |
MIPS_SYS(sys_ftruncate64 , 4)
|
| 1689 |
MIPS_SYS(sys_stat64 , 2)
|
| 1690 |
MIPS_SYS(sys_lstat64 , 2)
|
| 1691 |
MIPS_SYS(sys_fstat64 , 2) /* 4215 */ |
| 1692 |
MIPS_SYS(sys_pivot_root , 2)
|
| 1693 |
MIPS_SYS(sys_mincore , 3)
|
| 1694 |
MIPS_SYS(sys_madvise , 3)
|
| 1695 |
MIPS_SYS(sys_getdents64 , 3)
|
| 1696 |
MIPS_SYS(sys_fcntl64 , 3) /* 4220 */ |
| 1697 |
MIPS_SYS(sys_ni_syscall , 0)
|
| 1698 |
MIPS_SYS(sys_gettid , 0)
|
| 1699 |
MIPS_SYS(sys_readahead , 5)
|
| 1700 |
MIPS_SYS(sys_setxattr , 5)
|
| 1701 |
MIPS_SYS(sys_lsetxattr , 5) /* 4225 */ |
| 1702 |
MIPS_SYS(sys_fsetxattr , 5)
|
| 1703 |
MIPS_SYS(sys_getxattr , 4)
|
| 1704 |
MIPS_SYS(sys_lgetxattr , 4)
|
| 1705 |
MIPS_SYS(sys_fgetxattr , 4)
|
| 1706 |
MIPS_SYS(sys_listxattr , 3) /* 4230 */ |
| 1707 |
MIPS_SYS(sys_llistxattr , 3)
|
| 1708 |
MIPS_SYS(sys_flistxattr , 3)
|
| 1709 |
MIPS_SYS(sys_removexattr , 2)
|
| 1710 |
MIPS_SYS(sys_lremovexattr, 2)
|
| 1711 |
MIPS_SYS(sys_fremovexattr, 2) /* 4235 */ |
| 1712 |
MIPS_SYS(sys_tkill , 2)
|
| 1713 |
MIPS_SYS(sys_sendfile64 , 5)
|
| 1714 |
MIPS_SYS(sys_futex , 2)
|
| 1715 |
MIPS_SYS(sys_sched_setaffinity, 3)
|
| 1716 |
MIPS_SYS(sys_sched_getaffinity, 3) /* 4240 */ |
| 1717 |
MIPS_SYS(sys_io_setup , 2)
|
| 1718 |
MIPS_SYS(sys_io_destroy , 1)
|
| 1719 |
MIPS_SYS(sys_io_getevents, 5)
|
| 1720 |
MIPS_SYS(sys_io_submit , 3)
|
| 1721 |
MIPS_SYS(sys_io_cancel , 3) /* 4245 */ |
| 1722 |
MIPS_SYS(sys_exit_group , 1)
|
| 1723 |
MIPS_SYS(sys_lookup_dcookie, 3)
|
| 1724 |
MIPS_SYS(sys_epoll_create, 1)
|
| 1725 |
MIPS_SYS(sys_epoll_ctl , 4)
|
| 1726 |
MIPS_SYS(sys_epoll_wait , 3) /* 4250 */ |
| 1727 |
MIPS_SYS(sys_remap_file_pages, 5)
|
| 1728 |
MIPS_SYS(sys_set_tid_address, 1)
|
| 1729 |
MIPS_SYS(sys_restart_syscall, 0)
|
| 1730 |
MIPS_SYS(sys_fadvise64_64, 7)
|
| 1731 |
MIPS_SYS(sys_statfs64 , 3) /* 4255 */ |
| 1732 |
MIPS_SYS(sys_fstatfs64 , 2)
|
| 1733 |
MIPS_SYS(sys_timer_create, 3)
|
| 1734 |
MIPS_SYS(sys_timer_settime, 4)
|
| 1735 |
MIPS_SYS(sys_timer_gettime, 2)
|
| 1736 |
MIPS_SYS(sys_timer_getoverrun, 1) /* 4260 */ |
| 1737 |
MIPS_SYS(sys_timer_delete, 1)
|
| 1738 |
MIPS_SYS(sys_clock_settime, 2)
|
| 1739 |
MIPS_SYS(sys_clock_gettime, 2)
|
| 1740 |
MIPS_SYS(sys_clock_getres, 2)
|
| 1741 |
MIPS_SYS(sys_clock_nanosleep, 4) /* 4265 */ |
| 1742 |
MIPS_SYS(sys_tgkill , 3)
|
| 1743 |
MIPS_SYS(sys_utimes , 2)
|
| 1744 |
MIPS_SYS(sys_mbind , 4)
|
| 1745 |
MIPS_SYS(sys_ni_syscall , 0) /* sys_get_mempolicy */ |
| 1746 |
MIPS_SYS(sys_ni_syscall , 0) /* 4270 sys_set_mempolicy */ |
| 1747 |
MIPS_SYS(sys_mq_open , 4)
|
| 1748 |
MIPS_SYS(sys_mq_unlink , 1)
|
| 1749 |
MIPS_SYS(sys_mq_timedsend, 5)
|
| 1750 |
MIPS_SYS(sys_mq_timedreceive, 5)
|
| 1751 |
MIPS_SYS(sys_mq_notify , 2) /* 4275 */ |
| 1752 |
MIPS_SYS(sys_mq_getsetattr, 3)
|
| 1753 |
MIPS_SYS(sys_ni_syscall , 0) /* sys_vserver */ |
| 1754 |
MIPS_SYS(sys_waitid , 4)
|
| 1755 |
MIPS_SYS(sys_ni_syscall , 0) /* available, was setaltroot */ |
| 1756 |
MIPS_SYS(sys_add_key , 5)
|
| 1757 |
MIPS_SYS(sys_request_key, 4)
|
| 1758 |
MIPS_SYS(sys_keyctl , 5)
|
| 1759 |
MIPS_SYS(sys_set_thread_area, 1)
|
| 1760 |
MIPS_SYS(sys_inotify_init, 0)
|
| 1761 |
MIPS_SYS(sys_inotify_add_watch, 3) /* 4285 */ |
| 1762 |
MIPS_SYS(sys_inotify_rm_watch, 2)
|
| 1763 |
MIPS_SYS(sys_migrate_pages, 4)
|
| 1764 |
MIPS_SYS(sys_openat, 4)
|
| 1765 |
MIPS_SYS(sys_mkdirat, 3)
|
| 1766 |
MIPS_SYS(sys_mknodat, 4) /* 4290 */ |
| 1767 |
MIPS_SYS(sys_fchownat, 5)
|
| 1768 |
MIPS_SYS(sys_futimesat, 3)
|
| 1769 |
MIPS_SYS(sys_fstatat64, 4)
|
| 1770 |
MIPS_SYS(sys_unlinkat, 3)
|
| 1771 |
MIPS_SYS(sys_renameat, 4) /* 4295 */ |
| 1772 |
MIPS_SYS(sys_linkat, 5)
|
| 1773 |
MIPS_SYS(sys_symlinkat, 3)
|
| 1774 |
MIPS_SYS(sys_readlinkat, 4)
|
| 1775 |
MIPS_SYS(sys_fchmodat, 3)
|
| 1776 |
MIPS_SYS(sys_faccessat, 3) /* 4300 */ |
| 1777 |
MIPS_SYS(sys_pselect6, 6)
|
| 1778 |
MIPS_SYS(sys_ppoll, 5)
|
| 1779 |
MIPS_SYS(sys_unshare, 1)
|
| 1780 |
MIPS_SYS(sys_splice, 4)
|
| 1781 |
MIPS_SYS(sys_sync_file_range, 7) /* 4305 */ |
| 1782 |
MIPS_SYS(sys_tee, 4)
|
| 1783 |
MIPS_SYS(sys_vmsplice, 4)
|
| 1784 |
MIPS_SYS(sys_move_pages, 6)
|
| 1785 |
MIPS_SYS(sys_set_robust_list, 2)
|
| 1786 |
MIPS_SYS(sys_get_robust_list, 3) /* 4310 */ |
| 1787 |
MIPS_SYS(sys_kexec_load, 4)
|
| 1788 |
MIPS_SYS(sys_getcpu, 3)
|
| 1789 |
MIPS_SYS(sys_epoll_pwait, 6)
|
| 1790 |
MIPS_SYS(sys_ioprio_set, 3)
|
| 1791 |
MIPS_SYS(sys_ioprio_get, 2)
|
| 1792 |
}; |
| 1793 |
|
| 1794 |
#undef MIPS_SYS
|
| 1795 |
|
| 1796 |
static int do_store_exclusive(CPUMIPSState *env) |
| 1797 |
{
|
| 1798 |
target_ulong addr; |
| 1799 |
target_ulong page_addr; |
| 1800 |
target_ulong val; |
| 1801 |
int flags;
|
| 1802 |
int segv = 0; |
| 1803 |
int reg;
|
| 1804 |
int d;
|
| 1805 |
|
| 1806 |
addr = env->CP0_LLAddr; |
| 1807 |
page_addr = addr & TARGET_PAGE_MASK; |
| 1808 |
start_exclusive(); |
| 1809 |
mmap_lock(); |
| 1810 |
flags = page_get_flags(page_addr); |
| 1811 |
if ((flags & PAGE_READ) == 0) { |
| 1812 |
segv = 1;
|
| 1813 |
} else {
|
| 1814 |
reg = env->llreg & 0x1f;
|
| 1815 |
d = (env->llreg & 0x20) != 0; |
| 1816 |
if (d) {
|
| 1817 |
segv = get_user_s64(val, addr); |
| 1818 |
} else {
|
| 1819 |
segv = get_user_s32(val, addr); |
| 1820 |
} |
| 1821 |
if (!segv) {
|
| 1822 |
if (val != env->llval) {
|
| 1823 |
env->active_tc.gpr[reg] = 0;
|
| 1824 |
} else {
|
| 1825 |
if (d) {
|
| 1826 |
segv = put_user_u64(env->llnewval, addr); |
| 1827 |
} else {
|
| 1828 |
segv = put_user_u32(env->llnewval, addr); |
| 1829 |
} |
| 1830 |
if (!segv) {
|
| 1831 |
env->active_tc.gpr[reg] = 1;
|
| 1832 |
} |
| 1833 |
} |
| 1834 |
} |
| 1835 |
} |
| 1836 |
env->CP0_LLAddr = -1;
|
| 1837 |
if (!segv) {
|
| 1838 |
env->active_tc.PC += 4;
|
| 1839 |
} |
| 1840 |
mmap_unlock(); |
| 1841 |
end_exclusive(); |
| 1842 |
return segv;
|
| 1843 |
} |
| 1844 |
|
| 1845 |
void cpu_loop(CPUMIPSState *env)
|
| 1846 |
{
|
| 1847 |
target_siginfo_t info; |
| 1848 |
int trapnr, ret;
|
| 1849 |
unsigned int syscall_num; |
| 1850 |
|
| 1851 |
for(;;) {
|
| 1852 |
cpu_exec_start(env); |
| 1853 |
trapnr = cpu_mips_exec(env); |
| 1854 |
cpu_exec_end(env); |
| 1855 |
switch(trapnr) {
|
| 1856 |
case EXCP_SYSCALL:
|
| 1857 |
syscall_num = env->active_tc.gpr[2] - 4000; |
| 1858 |
env->active_tc.PC += 4;
|
| 1859 |
if (syscall_num >= sizeof(mips_syscall_args)) { |
| 1860 |
ret = -ENOSYS; |
| 1861 |
} else {
|
| 1862 |
int nb_args;
|
| 1863 |
abi_ulong sp_reg; |
| 1864 |
abi_ulong arg5 = 0, arg6 = 0, arg7 = 0, arg8 = 0; |
| 1865 |
|
| 1866 |
nb_args = mips_syscall_args[syscall_num]; |
| 1867 |
sp_reg = env->active_tc.gpr[29];
|
| 1868 |
switch (nb_args) {
|
| 1869 |
/* these arguments are taken from the stack */
|
| 1870 |
/* FIXME - what to do if get_user() fails? */
|
| 1871 |
case 8: get_user_ual(arg8, sp_reg + 28); |
| 1872 |
case 7: get_user_ual(arg7, sp_reg + 24); |
| 1873 |
case 6: get_user_ual(arg6, sp_reg + 20); |
| 1874 |
case 5: get_user_ual(arg5, sp_reg + 16); |
| 1875 |
default:
|
| 1876 |
break;
|
| 1877 |
} |
| 1878 |
ret = do_syscall(env, env->active_tc.gpr[2],
|
| 1879 |
env->active_tc.gpr[4],
|
| 1880 |
env->active_tc.gpr[5],
|
| 1881 |
env->active_tc.gpr[6],
|
| 1882 |
env->active_tc.gpr[7],
|
| 1883 |
arg5, arg6/*, arg7, arg8*/);
|
| 1884 |
} |
| 1885 |
if (ret == -TARGET_QEMU_ESIGRETURN) {
|
| 1886 |
/* Returning from a successful sigreturn syscall.
|
| 1887 |
Avoid clobbering register state. */
|
| 1888 |
break;
|
| 1889 |
} |
| 1890 |
if ((unsigned int)ret >= (unsigned int)(-1133)) { |
| 1891 |
env->active_tc.gpr[7] = 1; /* error flag */ |
| 1892 |
ret = -ret; |
| 1893 |
} else {
|
| 1894 |
env->active_tc.gpr[7] = 0; /* error flag */ |
| 1895 |
} |
| 1896 |
env->active_tc.gpr[2] = ret;
|
| 1897 |
break;
|
| 1898 |
case EXCP_TLBL:
|
| 1899 |
case EXCP_TLBS:
|
| 1900 |
info.si_signo = TARGET_SIGSEGV; |
| 1901 |
info.si_errno = 0;
|
| 1902 |
/* XXX: check env->error_code */
|
| 1903 |
info.si_code = TARGET_SEGV_MAPERR; |
| 1904 |
info._sifields._sigfault._addr = env->CP0_BadVAddr; |
| 1905 |
queue_signal(env, info.si_signo, &info); |
| 1906 |
break;
|
| 1907 |
case EXCP_CpU:
|
| 1908 |
case EXCP_RI:
|
| 1909 |
info.si_signo = TARGET_SIGILL; |
| 1910 |
info.si_errno = 0;
|
| 1911 |
info.si_code = 0;
|
| 1912 |
queue_signal(env, info.si_signo, &info); |
| 1913 |
break;
|
| 1914 |
case EXCP_INTERRUPT:
|
| 1915 |
/* just indicate that signals should be handled asap */
|
| 1916 |
break;
|
| 1917 |
case EXCP_DEBUG:
|
| 1918 |
{
|
| 1919 |
int sig;
|
| 1920 |
|
| 1921 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 1922 |
if (sig)
|
| 1923 |
{
|
| 1924 |
info.si_signo = sig; |
| 1925 |
info.si_errno = 0;
|
| 1926 |
info.si_code = TARGET_TRAP_BRKPT; |
| 1927 |
queue_signal(env, info.si_signo, &info); |
| 1928 |
} |
| 1929 |
} |
| 1930 |
break;
|
| 1931 |
case EXCP_SC:
|
| 1932 |
if (do_store_exclusive(env)) {
|
| 1933 |
info.si_signo = TARGET_SIGSEGV; |
| 1934 |
info.si_errno = 0;
|
| 1935 |
info.si_code = TARGET_SEGV_MAPERR; |
| 1936 |
info._sifields._sigfault._addr = env->active_tc.PC; |
| 1937 |
queue_signal(env, info.si_signo, &info); |
| 1938 |
} |
| 1939 |
break;
|
| 1940 |
default:
|
| 1941 |
// error:
|
| 1942 |
fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
|
| 1943 |
trapnr); |
| 1944 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 1945 |
abort(); |
| 1946 |
} |
| 1947 |
process_pending_signals(env); |
| 1948 |
} |
| 1949 |
} |
| 1950 |
#endif
|
| 1951 |
|
| 1952 |
#ifdef TARGET_SH4
|
| 1953 |
void cpu_loop (CPUState *env)
|
| 1954 |
{
|
| 1955 |
int trapnr, ret;
|
| 1956 |
target_siginfo_t info; |
| 1957 |
|
| 1958 |
while (1) { |
| 1959 |
trapnr = cpu_sh4_exec (env); |
| 1960 |
|
| 1961 |
switch (trapnr) {
|
| 1962 |
case 0x160: |
| 1963 |
env->pc += 2;
|
| 1964 |
ret = do_syscall(env, |
| 1965 |
env->gregs[3],
|
| 1966 |
env->gregs[4],
|
| 1967 |
env->gregs[5],
|
| 1968 |
env->gregs[6],
|
| 1969 |
env->gregs[7],
|
| 1970 |
env->gregs[0],
|
| 1971 |
env->gregs[1]);
|
| 1972 |
env->gregs[0] = ret;
|
| 1973 |
break;
|
| 1974 |
case EXCP_INTERRUPT:
|
| 1975 |
/* just indicate that signals should be handled asap */
|
| 1976 |
break;
|
| 1977 |
case EXCP_DEBUG:
|
| 1978 |
{
|
| 1979 |
int sig;
|
| 1980 |
|
| 1981 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 1982 |
if (sig)
|
| 1983 |
{
|
| 1984 |
info.si_signo = sig; |
| 1985 |
info.si_errno = 0;
|
| 1986 |
info.si_code = TARGET_TRAP_BRKPT; |
| 1987 |
queue_signal(env, info.si_signo, &info); |
| 1988 |
} |
| 1989 |
} |
| 1990 |
break;
|
| 1991 |
case 0xa0: |
| 1992 |
case 0xc0: |
| 1993 |
info.si_signo = SIGSEGV; |
| 1994 |
info.si_errno = 0;
|
| 1995 |
info.si_code = TARGET_SEGV_MAPERR; |
| 1996 |
info._sifields._sigfault._addr = env->tea; |
| 1997 |
queue_signal(env, info.si_signo, &info); |
| 1998 |
break;
|
| 1999 |
|
| 2000 |
default:
|
| 2001 |
printf ("Unhandled trap: 0x%x\n", trapnr);
|
| 2002 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 2003 |
exit (1);
|
| 2004 |
} |
| 2005 |
process_pending_signals (env); |
| 2006 |
} |
| 2007 |
} |
| 2008 |
#endif
|
| 2009 |
|
| 2010 |
#ifdef TARGET_CRIS
|
| 2011 |
void cpu_loop (CPUState *env)
|
| 2012 |
{
|
| 2013 |
int trapnr, ret;
|
| 2014 |
target_siginfo_t info; |
| 2015 |
|
| 2016 |
while (1) { |
| 2017 |
trapnr = cpu_cris_exec (env); |
| 2018 |
switch (trapnr) {
|
| 2019 |
case 0xaa: |
| 2020 |
{
|
| 2021 |
info.si_signo = SIGSEGV; |
| 2022 |
info.si_errno = 0;
|
| 2023 |
/* XXX: check env->error_code */
|
| 2024 |
info.si_code = TARGET_SEGV_MAPERR; |
| 2025 |
info._sifields._sigfault._addr = env->pregs[PR_EDA]; |
| 2026 |
queue_signal(env, info.si_signo, &info); |
| 2027 |
} |
| 2028 |
break;
|
| 2029 |
case EXCP_INTERRUPT:
|
| 2030 |
/* just indicate that signals should be handled asap */
|
| 2031 |
break;
|
| 2032 |
case EXCP_BREAK:
|
| 2033 |
ret = do_syscall(env, |
| 2034 |
env->regs[9],
|
| 2035 |
env->regs[10],
|
| 2036 |
env->regs[11],
|
| 2037 |
env->regs[12],
|
| 2038 |
env->regs[13],
|
| 2039 |
env->pregs[7],
|
| 2040 |
env->pregs[11]);
|
| 2041 |
env->regs[10] = ret;
|
| 2042 |
break;
|
| 2043 |
case EXCP_DEBUG:
|
| 2044 |
{
|
| 2045 |
int sig;
|
| 2046 |
|
| 2047 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 2048 |
if (sig)
|
| 2049 |
{
|
| 2050 |
info.si_signo = sig; |
| 2051 |
info.si_errno = 0;
|
| 2052 |
info.si_code = TARGET_TRAP_BRKPT; |
| 2053 |
queue_signal(env, info.si_signo, &info); |
| 2054 |
} |
| 2055 |
} |
| 2056 |
break;
|
| 2057 |
default:
|
| 2058 |
printf ("Unhandled trap: 0x%x\n", trapnr);
|
| 2059 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 2060 |
exit (1);
|
| 2061 |
} |
| 2062 |
process_pending_signals (env); |
| 2063 |
} |
| 2064 |
} |
| 2065 |
#endif
|
| 2066 |
|
| 2067 |
#ifdef TARGET_MICROBLAZE
|
| 2068 |
void cpu_loop (CPUState *env)
|
| 2069 |
{
|
| 2070 |
int trapnr, ret;
|
| 2071 |
target_siginfo_t info; |
| 2072 |
|
| 2073 |
while (1) { |
| 2074 |
trapnr = cpu_mb_exec (env); |
| 2075 |
switch (trapnr) {
|
| 2076 |
case 0xaa: |
| 2077 |
{
|
| 2078 |
info.si_signo = SIGSEGV; |
| 2079 |
info.si_errno = 0;
|
| 2080 |
/* XXX: check env->error_code */
|
| 2081 |
info.si_code = TARGET_SEGV_MAPERR; |
| 2082 |
info._sifields._sigfault._addr = 0;
|
| 2083 |
queue_signal(env, info.si_signo, &info); |
| 2084 |
} |
| 2085 |
break;
|
| 2086 |
case EXCP_INTERRUPT:
|
| 2087 |
/* just indicate that signals should be handled asap */
|
| 2088 |
break;
|
| 2089 |
case EXCP_BREAK:
|
| 2090 |
/* Return address is 4 bytes after the call. */
|
| 2091 |
env->regs[14] += 4; |
| 2092 |
ret = do_syscall(env, |
| 2093 |
env->regs[12],
|
| 2094 |
env->regs[5],
|
| 2095 |
env->regs[6],
|
| 2096 |
env->regs[7],
|
| 2097 |
env->regs[8],
|
| 2098 |
env->regs[9],
|
| 2099 |
env->regs[10]);
|
| 2100 |
env->regs[3] = ret;
|
| 2101 |
env->sregs[SR_PC] = env->regs[14];
|
| 2102 |
break;
|
| 2103 |
case EXCP_DEBUG:
|
| 2104 |
{
|
| 2105 |
int sig;
|
| 2106 |
|
| 2107 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 2108 |
if (sig)
|
| 2109 |
{
|
| 2110 |
info.si_signo = sig; |
| 2111 |
info.si_errno = 0;
|
| 2112 |
info.si_code = TARGET_TRAP_BRKPT; |
| 2113 |
queue_signal(env, info.si_signo, &info); |
| 2114 |
} |
| 2115 |
} |
| 2116 |
break;
|
| 2117 |
default:
|
| 2118 |
printf ("Unhandled trap: 0x%x\n", trapnr);
|
| 2119 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 2120 |
exit (1);
|
| 2121 |
} |
| 2122 |
process_pending_signals (env); |
| 2123 |
} |
| 2124 |
} |
| 2125 |
#endif
|
| 2126 |
|
| 2127 |
#ifdef TARGET_M68K
|
| 2128 |
|
| 2129 |
void cpu_loop(CPUM68KState *env)
|
| 2130 |
{
|
| 2131 |
int trapnr;
|
| 2132 |
unsigned int n; |
| 2133 |
target_siginfo_t info; |
| 2134 |
TaskState *ts = env->opaque; |
| 2135 |
|
| 2136 |
for(;;) {
|
| 2137 |
trapnr = cpu_m68k_exec(env); |
| 2138 |
switch(trapnr) {
|
| 2139 |
case EXCP_ILLEGAL:
|
| 2140 |
{
|
| 2141 |
if (ts->sim_syscalls) {
|
| 2142 |
uint16_t nr; |
| 2143 |
nr = lduw(env->pc + 2);
|
| 2144 |
env->pc += 4;
|
| 2145 |
do_m68k_simcall(env, nr); |
| 2146 |
} else {
|
| 2147 |
goto do_sigill;
|
| 2148 |
} |
| 2149 |
} |
| 2150 |
break;
|
| 2151 |
case EXCP_HALT_INSN:
|
| 2152 |
/* Semihosing syscall. */
|
| 2153 |
env->pc += 4;
|
| 2154 |
do_m68k_semihosting(env, env->dregs[0]);
|
| 2155 |
break;
|
| 2156 |
case EXCP_LINEA:
|
| 2157 |
case EXCP_LINEF:
|
| 2158 |
case EXCP_UNSUPPORTED:
|
| 2159 |
do_sigill:
|
| 2160 |
info.si_signo = SIGILL; |
| 2161 |
info.si_errno = 0;
|
| 2162 |
info.si_code = TARGET_ILL_ILLOPN; |
| 2163 |
info._sifields._sigfault._addr = env->pc; |
| 2164 |
queue_signal(env, info.si_signo, &info); |
| 2165 |
break;
|
| 2166 |
case EXCP_TRAP0:
|
| 2167 |
{
|
| 2168 |
ts->sim_syscalls = 0;
|
| 2169 |
n = env->dregs[0];
|
| 2170 |
env->pc += 2;
|
| 2171 |
env->dregs[0] = do_syscall(env,
|
| 2172 |
n, |
| 2173 |
env->dregs[1],
|
| 2174 |
env->dregs[2],
|
| 2175 |
env->dregs[3],
|
| 2176 |
env->dregs[4],
|
| 2177 |
env->dregs[5],
|
| 2178 |
env->aregs[0]);
|
| 2179 |
} |
| 2180 |
break;
|
| 2181 |
case EXCP_INTERRUPT:
|
| 2182 |
/* just indicate that signals should be handled asap */
|
| 2183 |
break;
|
| 2184 |
case EXCP_ACCESS:
|
| 2185 |
{
|
| 2186 |
info.si_signo = SIGSEGV; |
| 2187 |
info.si_errno = 0;
|
| 2188 |
/* XXX: check env->error_code */
|
| 2189 |
info.si_code = TARGET_SEGV_MAPERR; |
| 2190 |
info._sifields._sigfault._addr = env->mmu.ar; |
| 2191 |
queue_signal(env, info.si_signo, &info); |
| 2192 |
} |
| 2193 |
break;
|
| 2194 |
case EXCP_DEBUG:
|
| 2195 |
{
|
| 2196 |
int sig;
|
| 2197 |
|
| 2198 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 2199 |
if (sig)
|
| 2200 |
{
|
| 2201 |
info.si_signo = sig; |
| 2202 |
info.si_errno = 0;
|
| 2203 |
info.si_code = TARGET_TRAP_BRKPT; |
| 2204 |
queue_signal(env, info.si_signo, &info); |
| 2205 |
} |
| 2206 |
} |
| 2207 |
break;
|
| 2208 |
default:
|
| 2209 |
fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
|
| 2210 |
trapnr); |
| 2211 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 2212 |
abort(); |
| 2213 |
} |
| 2214 |
process_pending_signals(env); |
| 2215 |
} |
| 2216 |
} |
| 2217 |
#endif /* TARGET_M68K */ |
| 2218 |
|
| 2219 |
#ifdef TARGET_ALPHA
|
| 2220 |
void cpu_loop (CPUState *env)
|
| 2221 |
{
|
| 2222 |
int trapnr;
|
| 2223 |
target_siginfo_t info; |
| 2224 |
|
| 2225 |
while (1) { |
| 2226 |
trapnr = cpu_alpha_exec (env); |
| 2227 |
|
| 2228 |
switch (trapnr) {
|
| 2229 |
case EXCP_RESET:
|
| 2230 |
fprintf(stderr, "Reset requested. Exit\n");
|
| 2231 |
exit(1);
|
| 2232 |
break;
|
| 2233 |
case EXCP_MCHK:
|
| 2234 |
fprintf(stderr, "Machine check exception. Exit\n");
|
| 2235 |
exit(1);
|
| 2236 |
break;
|
| 2237 |
case EXCP_ARITH:
|
| 2238 |
fprintf(stderr, "Arithmetic trap.\n");
|
| 2239 |
exit(1);
|
| 2240 |
break;
|
| 2241 |
case EXCP_HW_INTERRUPT:
|
| 2242 |
fprintf(stderr, "External interrupt. Exit\n");
|
| 2243 |
exit(1);
|
| 2244 |
break;
|
| 2245 |
case EXCP_DFAULT:
|
| 2246 |
fprintf(stderr, "MMU data fault\n");
|
| 2247 |
exit(1);
|
| 2248 |
break;
|
| 2249 |
case EXCP_DTB_MISS_PAL:
|
| 2250 |
fprintf(stderr, "MMU data TLB miss in PALcode\n");
|
| 2251 |
exit(1);
|
| 2252 |
break;
|
| 2253 |
case EXCP_ITB_MISS:
|
| 2254 |
fprintf(stderr, "MMU instruction TLB miss\n");
|
| 2255 |
exit(1);
|
| 2256 |
break;
|
| 2257 |
case EXCP_ITB_ACV:
|
| 2258 |
fprintf(stderr, "MMU instruction access violation\n");
|
| 2259 |
exit(1);
|
| 2260 |
break;
|
| 2261 |
case EXCP_DTB_MISS_NATIVE:
|
| 2262 |
fprintf(stderr, "MMU data TLB miss\n");
|
| 2263 |
exit(1);
|
| 2264 |
break;
|
| 2265 |
case EXCP_UNALIGN:
|
| 2266 |
fprintf(stderr, "Unaligned access\n");
|
| 2267 |
exit(1);
|
| 2268 |
break;
|
| 2269 |
case EXCP_OPCDEC:
|
| 2270 |
fprintf(stderr, "Invalid instruction\n");
|
| 2271 |
exit(1);
|
| 2272 |
break;
|
| 2273 |
case EXCP_FEN:
|
| 2274 |
fprintf(stderr, "Floating-point not allowed\n");
|
| 2275 |
exit(1);
|
| 2276 |
break;
|
| 2277 |
case EXCP_CALL_PAL ... (EXCP_CALL_PALP - 1): |
| 2278 |
call_pal(env, (trapnr >> 6) | 0x80); |
| 2279 |
break;
|
| 2280 |
case EXCP_CALL_PALP ... (EXCP_CALL_PALE - 1): |
| 2281 |
fprintf(stderr, "Privileged call to PALcode\n");
|
| 2282 |
exit(1);
|
| 2283 |
break;
|
| 2284 |
case EXCP_DEBUG:
|
| 2285 |
{
|
| 2286 |
int sig;
|
| 2287 |
|
| 2288 |
sig = gdb_handlesig (env, TARGET_SIGTRAP); |
| 2289 |
if (sig)
|
| 2290 |
{
|
| 2291 |
info.si_signo = sig; |
| 2292 |
info.si_errno = 0;
|
| 2293 |
info.si_code = TARGET_TRAP_BRKPT; |
| 2294 |
queue_signal(env, info.si_signo, &info); |
| 2295 |
} |
| 2296 |
} |
| 2297 |
break;
|
| 2298 |
default:
|
| 2299 |
printf ("Unhandled trap: 0x%x\n", trapnr);
|
| 2300 |
cpu_dump_state(env, stderr, fprintf, 0);
|
| 2301 |
exit (1);
|
| 2302 |
} |
| 2303 |
process_pending_signals (env); |
| 2304 |
} |
| 2305 |
} |
| 2306 |
#endif /* TARGET_ALPHA */ |
| 2307 |
|
| 2308 |
static void usage(void) |
| 2309 |
{
|
| 2310 |
printf("qemu-" TARGET_ARCH " version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n" |
| 2311 |
"usage: qemu-" TARGET_ARCH " [options] program [arguments...]\n" |
| 2312 |
"Linux CPU emulator (compiled for %s emulation)\n"
|
| 2313 |
"\n"
|
| 2314 |
"Standard options:\n"
|
| 2315 |
"-h print this help\n"
|
| 2316 |
"-g port wait gdb connection to port\n"
|
| 2317 |
"-L path set the elf interpreter prefix (default=%s)\n"
|
| 2318 |
"-s size set the stack size in bytes (default=%ld)\n"
|
| 2319 |
"-cpu model select CPU (-cpu ? for list)\n"
|
| 2320 |
"-drop-ld-preload drop LD_PRELOAD for target process\n"
|
| 2321 |
"-E var=value sets/modifies targets environment variable(s)\n"
|
| 2322 |
"-U var unsets targets environment variable(s)\n"
|
| 2323 |
"-0 argv0 forces target process argv[0] to be argv0\n"
|
| 2324 |
"\n"
|
| 2325 |
"Debug options:\n"
|
| 2326 |
"-d options activate log (logfile=%s)\n"
|
| 2327 |
"-p pagesize set the host page size to 'pagesize'\n"
|
| 2328 |
"-singlestep always run in singlestep mode\n"
|
| 2329 |
"-strace log system calls\n"
|
| 2330 |
"\n"
|
| 2331 |
"Environment variables:\n"
|
| 2332 |
"QEMU_STRACE Print system calls and arguments similar to the\n"
|
| 2333 |
" 'strace' program. Enable by setting to any value.\n"
|
| 2334 |
"You can use -E and -U options to set/unset environment variables\n"
|
| 2335 |
"for target process. It is possible to provide several variables\n"
|
| 2336 |
"by repeating the option. For example:\n"
|
| 2337 |
" -E var1=val2 -E var2=val2 -U LD_PRELOAD -U LD_DEBUG\n"
|
| 2338 |
"Note that if you provide several changes to single variable\n"
|
| 2339 |
"last change will stay in effect.\n"
|
| 2340 |
, |
| 2341 |
TARGET_ARCH, |
| 2342 |
interp_prefix, |
| 2343 |
x86_stack_size, |
| 2344 |
DEBUG_LOGFILE); |
| 2345 |
exit(1);
|
| 2346 |
} |
| 2347 |
|
| 2348 |
THREAD CPUState *thread_env; |
| 2349 |
|
| 2350 |
void task_settid(TaskState *ts)
|
| 2351 |
{
|
| 2352 |
if (ts->ts_tid == 0) { |
| 2353 |
#ifdef USE_NPTL
|
| 2354 |
ts->ts_tid = (pid_t)syscall(SYS_gettid); |
| 2355 |
#else
|
| 2356 |
/* when no threads are used, tid becomes pid */
|
| 2357 |
ts->ts_tid = getpid(); |
| 2358 |
#endif
|
| 2359 |
} |
| 2360 |
} |
| 2361 |
|
| 2362 |
void stop_all_tasks(void) |
| 2363 |
{
|
| 2364 |
/*
|
| 2365 |
* We trust that when using NPTL, start_exclusive()
|
| 2366 |
* handles thread stopping correctly.
|
| 2367 |
*/
|
| 2368 |
start_exclusive(); |
| 2369 |
} |
| 2370 |
|
| 2371 |
/* Assumes contents are already zeroed. */
|
| 2372 |
void init_task_state(TaskState *ts)
|
| 2373 |
{
|
| 2374 |
int i;
|
| 2375 |
|
| 2376 |
ts->used = 1;
|
| 2377 |
ts->first_free = ts->sigqueue_table; |
| 2378 |
for (i = 0; i < MAX_SIGQUEUE_SIZE - 1; i++) { |
| 2379 |
ts->sigqueue_table[i].next = &ts->sigqueue_table[i + 1];
|
| 2380 |
} |
| 2381 |
ts->sigqueue_table[i].next = NULL;
|
| 2382 |
} |
| 2383 |
|
| 2384 |
int main(int argc, char **argv, char **envp) |
| 2385 |
{
|
| 2386 |
const char *filename; |
| 2387 |
const char *cpu_model; |
| 2388 |
struct target_pt_regs regs1, *regs = ®s1;
|
| 2389 |
struct image_info info1, *info = &info1;
|
| 2390 |
struct linux_binprm bprm;
|
| 2391 |
TaskState ts1, *ts = &ts1; |
| 2392 |
CPUState *env; |
| 2393 |
int optind;
|
| 2394 |
const char *r; |
| 2395 |
int gdbstub_port = 0; |
| 2396 |
char **target_environ, **wrk;
|
| 2397 |
char **target_argv;
|
| 2398 |
int target_argc;
|
| 2399 |
envlist_t *envlist = NULL;
|
| 2400 |
const char *argv0 = NULL; |
| 2401 |
int i;
|
| 2402 |
int ret;
|
| 2403 |
|
| 2404 |
if (argc <= 1) |
| 2405 |
usage(); |
| 2406 |
|
| 2407 |
qemu_cache_utils_init(envp); |
| 2408 |
|
| 2409 |
/* init debug */
|
| 2410 |
cpu_set_log_filename(DEBUG_LOGFILE); |
| 2411 |
|
| 2412 |
if ((envlist = envlist_create()) == NULL) { |
| 2413 |
(void) fprintf(stderr, "Unable to allocate envlist\n"); |
| 2414 |
exit(1);
|
| 2415 |
} |
| 2416 |
|
| 2417 |
/* add current environment into the list */
|
| 2418 |
for (wrk = environ; *wrk != NULL; wrk++) { |
| 2419 |
(void) envlist_setenv(envlist, *wrk);
|
| 2420 |
} |
| 2421 |
|
| 2422 |
cpu_model = NULL;
|
| 2423 |
optind = 1;
|
| 2424 |
for(;;) {
|
| 2425 |
if (optind >= argc)
|
| 2426 |
break;
|
| 2427 |
r = argv[optind]; |
| 2428 |
if (r[0] != '-') |
| 2429 |
break;
|
| 2430 |
optind++; |
| 2431 |
r++; |
| 2432 |
if (!strcmp(r, "-")) { |
| 2433 |
break;
|
| 2434 |
} else if (!strcmp(r, "d")) { |
| 2435 |
int mask;
|
| 2436 |
const CPULogItem *item;
|
| 2437 |
|
| 2438 |
if (optind >= argc)
|
| 2439 |
break;
|
| 2440 |
|
| 2441 |
r = argv[optind++]; |
| 2442 |
mask = cpu_str_to_log_mask(r); |
| 2443 |
if (!mask) {
|
| 2444 |
printf("Log items (comma separated):\n");
|
| 2445 |
for(item = cpu_log_items; item->mask != 0; item++) { |
| 2446 |
printf("%-10s %s\n", item->name, item->help);
|
| 2447 |
} |
| 2448 |
exit(1);
|
| 2449 |
} |
| 2450 |
cpu_set_log(mask); |
| 2451 |
} else if (!strcmp(r, "E")) { |
| 2452 |
r = argv[optind++]; |
| 2453 |
if (envlist_setenv(envlist, r) != 0) |
| 2454 |
usage(); |
| 2455 |
} else if (!strcmp(r, "U")) { |
| 2456 |
r = argv[optind++]; |
| 2457 |
if (envlist_unsetenv(envlist, r) != 0) |
| 2458 |
usage(); |
| 2459 |
} else if (!strcmp(r, "0")) { |
| 2460 |
r = argv[optind++]; |
| 2461 |
argv0 = r; |
| 2462 |
} else if (!strcmp(r, "s")) { |
| 2463 |
if (optind >= argc)
|
| 2464 |
break;
|
| 2465 |
r = argv[optind++]; |
| 2466 |
x86_stack_size = strtol(r, (char **)&r, 0); |
| 2467 |
if (x86_stack_size <= 0) |
| 2468 |
usage(); |
| 2469 |
if (*r == 'M') |
| 2470 |
x86_stack_size *= 1024 * 1024; |
| 2471 |
else if (*r == 'k' || *r == 'K') |
| 2472 |
x86_stack_size *= 1024;
|
| 2473 |
} else if (!strcmp(r, "L")) { |
| 2474 |
interp_prefix = argv[optind++]; |
| 2475 |
} else if (!strcmp(r, "p")) { |
| 2476 |
if (optind >= argc)
|
| 2477 |
break;
|
| 2478 |
qemu_host_page_size = atoi(argv[optind++]); |
| 2479 |
if (qemu_host_page_size == 0 || |
| 2480 |
(qemu_host_page_size & (qemu_host_page_size - 1)) != 0) { |
| 2481 |
fprintf(stderr, "page size must be a power of two\n");
|
| 2482 |
exit(1);
|
| 2483 |
} |
| 2484 |
} else if (!strcmp(r, "g")) { |
| 2485 |
if (optind >= argc)
|
| 2486 |
break;
|
| 2487 |
gdbstub_port = atoi(argv[optind++]); |
| 2488 |
} else if (!strcmp(r, "r")) { |
| 2489 |
qemu_uname_release = argv[optind++]; |
| 2490 |
} else if (!strcmp(r, "cpu")) { |
| 2491 |
cpu_model = argv[optind++]; |
| 2492 |
if (cpu_model == NULL || strcmp(cpu_model, "?") == 0) { |
| 2493 |
/* XXX: implement xxx_cpu_list for targets that still miss it */
|
| 2494 |
#if defined(cpu_list)
|
| 2495 |
cpu_list(stdout, &fprintf); |
| 2496 |
#endif
|
| 2497 |
exit(1);
|
| 2498 |
} |
| 2499 |
} else if (!strcmp(r, "drop-ld-preload")) { |
| 2500 |
(void) envlist_unsetenv(envlist, "LD_PRELOAD"); |
| 2501 |
} else if (!strcmp(r, "singlestep")) { |
| 2502 |
singlestep = 1;
|
| 2503 |
} else if (!strcmp(r, "strace")) { |
| 2504 |
do_strace = 1;
|
| 2505 |
} else
|
| 2506 |
{
|
| 2507 |
usage(); |
| 2508 |
} |
| 2509 |
} |
| 2510 |
if (optind >= argc)
|
| 2511 |
usage(); |
| 2512 |
filename = argv[optind]; |
| 2513 |
exec_path = argv[optind]; |
| 2514 |
|
| 2515 |
/* Zero out regs */
|
| 2516 |
memset(regs, 0, sizeof(struct target_pt_regs)); |
| 2517 |
|
| 2518 |
/* Zero out image_info */
|
| 2519 |
memset(info, 0, sizeof(struct image_info)); |
| 2520 |
|
| 2521 |
memset(&bprm, 0, sizeof (bprm)); |
| 2522 |
|
| 2523 |
/* Scan interp_prefix dir for replacement files. */
|
| 2524 |
init_paths(interp_prefix); |
| 2525 |
|
| 2526 |
if (cpu_model == NULL) { |
| 2527 |
#if defined(TARGET_I386)
|
| 2528 |
#ifdef TARGET_X86_64
|
| 2529 |
cpu_model = "qemu64";
|
| 2530 |
#else
|
| 2531 |
cpu_model = "qemu32";
|
| 2532 |
#endif
|
| 2533 |
#elif defined(TARGET_ARM)
|
| 2534 |
cpu_model = "any";
|
| 2535 |
#elif defined(TARGET_M68K)
|
| 2536 |
cpu_model = "any";
|
| 2537 |
#elif defined(TARGET_SPARC)
|
| 2538 |
#ifdef TARGET_SPARC64
|
| 2539 |
cpu_model = "TI UltraSparc II";
|
| 2540 |
#else
|
| 2541 |
cpu_model = "Fujitsu MB86904";
|
| 2542 |
#endif
|
| 2543 |
#elif defined(TARGET_MIPS)
|
| 2544 |
#if defined(TARGET_ABI_MIPSN32) || defined(TARGET_ABI_MIPSN64)
|
| 2545 |
cpu_model = "20Kc";
|
| 2546 |
#else
|
| 2547 |
cpu_model = "24Kf";
|
| 2548 |
#endif
|
| 2549 |
#elif defined(TARGET_PPC)
|
| 2550 |
#ifdef TARGET_PPC64
|
| 2551 |
cpu_model = "970";
|
| 2552 |
#else
|
| 2553 |
cpu_model = "750";
|
| 2554 |
#endif
|
| 2555 |
#else
|
| 2556 |
cpu_model = "any";
|
| 2557 |
#endif
|
| 2558 |
} |
| 2559 |
cpu_exec_init_all(0);
|
| 2560 |
/* NOTE: we need to init the CPU at this stage to get
|
| 2561 |
qemu_host_page_size */
|
| 2562 |
env = cpu_init(cpu_model); |
| 2563 |
if (!env) {
|
| 2564 |
fprintf(stderr, "Unable to find CPU definition\n");
|
| 2565 |
exit(1);
|
| 2566 |
} |
| 2567 |
thread_env = env; |
| 2568 |
|
| 2569 |
if (getenv("QEMU_STRACE")) { |
| 2570 |
do_strace = 1;
|
| 2571 |
} |
| 2572 |
|
| 2573 |
target_environ = envlist_to_environ(envlist, NULL);
|
| 2574 |
envlist_free(envlist); |
| 2575 |
|
| 2576 |
/*
|
| 2577 |
* Prepare copy of argv vector for target.
|
| 2578 |
*/
|
| 2579 |
target_argc = argc - optind; |
| 2580 |
target_argv = calloc(target_argc + 1, sizeof (char *)); |
| 2581 |
if (target_argv == NULL) { |
| 2582 |
(void) fprintf(stderr, "Unable to allocate memory for target_argv\n"); |
| 2583 |
exit(1);
|
| 2584 |
} |
| 2585 |
|
| 2586 |
/*
|
| 2587 |
* If argv0 is specified (using '-0' switch) we replace
|
| 2588 |
* argv[0] pointer with the given one.
|
| 2589 |
*/
|
| 2590 |
i = 0;
|
| 2591 |
if (argv0 != NULL) { |
| 2592 |
target_argv[i++] = strdup(argv0); |
| 2593 |
} |
| 2594 |
for (; i < target_argc; i++) {
|
| 2595 |
target_argv[i] = strdup(argv[optind + i]); |
| 2596 |
} |
| 2597 |
target_argv[target_argc] = NULL;
|
| 2598 |
|
| 2599 |
memset(ts, 0, sizeof(TaskState)); |
| 2600 |
init_task_state(ts); |
| 2601 |
/* build Task State */
|
| 2602 |
ts->info = info; |
| 2603 |
ts->bprm = &bprm; |
| 2604 |
env->opaque = ts; |
| 2605 |
task_settid(ts); |
| 2606 |
|
| 2607 |
ret = loader_exec(filename, target_argv, target_environ, regs, |
| 2608 |
info, &bprm); |
| 2609 |
if (ret != 0) { |
| 2610 |
printf("Error %d while loading %s\n", ret, filename);
|
| 2611 |
_exit(1);
|
| 2612 |
} |
| 2613 |
|
| 2614 |
for (i = 0; i < target_argc; i++) { |
| 2615 |
free(target_argv[i]); |
| 2616 |
} |
| 2617 |
free(target_argv); |
| 2618 |
|
| 2619 |
for (wrk = target_environ; *wrk; wrk++) {
|
| 2620 |
free(*wrk); |
| 2621 |
} |
| 2622 |
|
| 2623 |
free(target_environ); |
| 2624 |
|
| 2625 |
if (qemu_log_enabled()) {
|
| 2626 |
log_page_dump(); |
| 2627 |
|
| 2628 |
qemu_log("start_brk 0x" TARGET_ABI_FMT_lx "\n", info->start_brk); |
| 2629 |
qemu_log("end_code 0x" TARGET_ABI_FMT_lx "\n", info->end_code); |
| 2630 |
qemu_log("start_code 0x" TARGET_ABI_FMT_lx "\n", |
| 2631 |
info->start_code); |
| 2632 |
qemu_log("start_data 0x" TARGET_ABI_FMT_lx "\n", |
| 2633 |
info->start_data); |
| 2634 |
qemu_log("end_data 0x" TARGET_ABI_FMT_lx "\n", info->end_data); |
| 2635 |
qemu_log("start_stack 0x" TARGET_ABI_FMT_lx "\n", |
| 2636 |
info->start_stack); |
| 2637 |
qemu_log("brk 0x" TARGET_ABI_FMT_lx "\n", info->brk); |
| 2638 |
qemu_log("entry 0x" TARGET_ABI_FMT_lx "\n", info->entry); |
| 2639 |
} |
| 2640 |
|
| 2641 |
target_set_brk(info->brk); |
| 2642 |
syscall_init(); |
| 2643 |
signal_init(); |
| 2644 |
|
| 2645 |
#if defined(TARGET_I386)
|
| 2646 |
cpu_x86_set_cpl(env, 3);
|
| 2647 |
|
| 2648 |
env->cr[0] = CR0_PG_MASK | CR0_WP_MASK | CR0_PE_MASK;
|
| 2649 |
env->hflags |= HF_PE_MASK; |
| 2650 |
if (env->cpuid_features & CPUID_SSE) {
|
| 2651 |
env->cr[4] |= CR4_OSFXSR_MASK;
|
| 2652 |
env->hflags |= HF_OSFXSR_MASK; |
| 2653 |
} |
| 2654 |
#ifndef TARGET_ABI32
|
| 2655 |
/* enable 64 bit mode if possible */
|
| 2656 |
if (!(env->cpuid_ext2_features & CPUID_EXT2_LM)) {
|
| 2657 |
fprintf(stderr, "The selected x86 CPU does not support 64 bit mode\n");
|
| 2658 |
exit(1);
|
| 2659 |
} |
| 2660 |
env->cr[4] |= CR4_PAE_MASK;
|
| 2661 |
env->efer |= MSR_EFER_LMA | MSR_EFER_LME; |
| 2662 |
env->hflags |= HF_LMA_MASK; |
| 2663 |
#endif
|
| 2664 |
|
| 2665 |
/* flags setup : we activate the IRQs by default as in user mode */
|
| 2666 |
env->eflags |= IF_MASK; |
| 2667 |
|
| 2668 |
/* linux register setup */
|
| 2669 |
#ifndef TARGET_ABI32
|
| 2670 |
env->regs[R_EAX] = regs->rax; |
| 2671 |
env->regs[R_EBX] = regs->rbx; |
| 2672 |
env->regs[R_ECX] = regs->rcx; |
| 2673 |
env->regs[R_EDX] = regs->rdx; |
| 2674 |
env->regs[R_ESI] = regs->rsi; |
| 2675 |
env->regs[R_EDI] = regs->rdi; |
| 2676 |
env->regs[R_EBP] = regs->rbp; |
| 2677 |
env->regs[R_ESP] = regs->rsp; |
| 2678 |
env->eip = regs->rip; |
| 2679 |
#else
|
| 2680 |
env->regs[R_EAX] = regs->eax; |
| 2681 |
env->regs[R_EBX] = regs->ebx; |
| 2682 |
env->regs[R_ECX] = regs->ecx; |
| 2683 |
env->regs[R_EDX] = regs->edx; |
| 2684 |
env->regs[R_ESI] = regs->esi; |
| 2685 |
env->regs[R_EDI] = regs->edi; |
| 2686 |
env->regs[R_EBP] = regs->ebp; |
| 2687 |
env->regs[R_ESP] = regs->esp; |
| 2688 |
env->eip = regs->eip; |
| 2689 |
#endif
|
| 2690 |
|
| 2691 |
/* linux interrupt setup */
|
| 2692 |
#ifndef TARGET_ABI32
|
| 2693 |
env->idt.limit = 511;
|
| 2694 |
#else
|
| 2695 |
env->idt.limit = 255;
|
| 2696 |
#endif
|
| 2697 |
env->idt.base = target_mmap(0, sizeof(uint64_t) * (env->idt.limit + 1), |
| 2698 |
PROT_READ|PROT_WRITE, |
| 2699 |
MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); |
| 2700 |
idt_table = g2h(env->idt.base); |
| 2701 |
set_idt(0, 0); |
| 2702 |
set_idt(1, 0); |
| 2703 |
set_idt(2, 0); |
| 2704 |
set_idt(3, 3); |
| 2705 |
set_idt(4, 3); |
| 2706 |
set_idt(5, 0); |
| 2707 |
set_idt(6, 0); |
| 2708 |
set_idt(7, 0); |
| 2709 |
set_idt(8, 0); |
| 2710 |
set_idt(9, 0); |
| 2711 |
set_idt(10, 0); |
| 2712 |
set_idt(11, 0); |
| 2713 |
set_idt(12, 0); |
| 2714 |
set_idt(13, 0); |
| 2715 |
set_idt(14, 0); |
| 2716 |
set_idt(15, 0); |
| 2717 |
set_idt(16, 0); |
| 2718 |
set_idt(17, 0); |
| 2719 |
set_idt(18, 0); |
| 2720 |
set_idt(19, 0); |
| 2721 |
set_idt(0x80, 3); |
| 2722 |
|
| 2723 |
/* linux segment setup */
|
| 2724 |
{
|
| 2725 |
uint64_t *gdt_table; |
| 2726 |
env->gdt.base = target_mmap(0, sizeof(uint64_t) * TARGET_GDT_ENTRIES, |
| 2727 |
PROT_READ|PROT_WRITE, |
| 2728 |
MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); |
| 2729 |
env->gdt.limit = sizeof(uint64_t) * TARGET_GDT_ENTRIES - 1; |
| 2730 |
gdt_table = g2h(env->gdt.base); |
| 2731 |
#ifdef TARGET_ABI32
|
| 2732 |
write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff, |
| 2733 |
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | |
| 2734 |
(3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); |
| 2735 |
#else
|
| 2736 |
/* 64 bit code segment */
|
| 2737 |
write_dt(&gdt_table[__USER_CS >> 3], 0, 0xfffff, |
| 2738 |
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | |
| 2739 |
DESC_L_MASK | |
| 2740 |
(3 << DESC_DPL_SHIFT) | (0xa << DESC_TYPE_SHIFT)); |
| 2741 |
#endif
|
| 2742 |
write_dt(&gdt_table[__USER_DS >> 3], 0, 0xfffff, |
| 2743 |
DESC_G_MASK | DESC_B_MASK | DESC_P_MASK | DESC_S_MASK | |
| 2744 |
(3 << DESC_DPL_SHIFT) | (0x2 << DESC_TYPE_SHIFT)); |
| 2745 |
} |
| 2746 |
cpu_x86_load_seg(env, R_CS, __USER_CS); |
| 2747 |
cpu_x86_load_seg(env, R_SS, __USER_DS); |
| 2748 |
#ifdef TARGET_ABI32
|
| 2749 |
cpu_x86_load_seg(env, R_DS, __USER_DS); |
| 2750 |
cpu_x86_load_seg(env, R_ES, __USER_DS); |
| 2751 |
cpu_x86_load_seg(env, R_FS, __USER_DS); |
| 2752 |
cpu_x86_load_seg(env, R_GS, __USER_DS); |
| 2753 |
/* This hack makes Wine work... */
|
| 2754 |
env->segs[R_FS].selector = 0;
|
| 2755 |
#else
|
| 2756 |
cpu_x86_load_seg(env, R_DS, 0);
|
| 2757 |
cpu_x86_load_seg(env, R_ES, 0);
|
| 2758 |
cpu_x86_load_seg(env, R_FS, 0);
|
| 2759 |
cpu_x86_load_seg(env, R_GS, 0);
|
| 2760 |
#endif
|
| 2761 |
#elif defined(TARGET_ARM)
|
| 2762 |
{
|
| 2763 |
int i;
|
| 2764 |
cpsr_write(env, regs->uregs[16], 0xffffffff); |
| 2765 |
for(i = 0; i < 16; i++) { |
| 2766 |
env->regs[i] = regs->uregs[i]; |
| 2767 |
} |
| 2768 |
} |
| 2769 |
#elif defined(TARGET_SPARC)
|
| 2770 |
{
|
| 2771 |
int i;
|
| 2772 |
env->pc = regs->pc; |
| 2773 |
env->npc = regs->npc; |
| 2774 |
env->y = regs->y; |
| 2775 |
for(i = 0; i < 8; i++) |
| 2776 |
env->gregs[i] = regs->u_regs[i]; |
| 2777 |
for(i = 0; i < 8; i++) |
| 2778 |
env->regwptr[i] = regs->u_regs[i + 8];
|
| 2779 |
} |
| 2780 |
#elif defined(TARGET_PPC)
|
| 2781 |
{
|
| 2782 |
int i;
|
| 2783 |
|
| 2784 |
#if defined(TARGET_PPC64)
|
| 2785 |
#if defined(TARGET_ABI32)
|
| 2786 |
env->msr &= ~((target_ulong)1 << MSR_SF);
|
| 2787 |
#else
|
| 2788 |
env->msr |= (target_ulong)1 << MSR_SF;
|
| 2789 |
#endif
|
| 2790 |
#endif
|
| 2791 |
env->nip = regs->nip; |
| 2792 |
for(i = 0; i < 32; i++) { |
| 2793 |
env->gpr[i] = regs->gpr[i]; |
| 2794 |
} |
| 2795 |
} |
| 2796 |
#elif defined(TARGET_M68K)
|
| 2797 |
{
|
| 2798 |
env->pc = regs->pc; |
| 2799 |
env->dregs[0] = regs->d0;
|
| 2800 |
env->dregs[1] = regs->d1;
|
| 2801 |
env->dregs[2] = regs->d2;
|
| 2802 |
env->dregs[3] = regs->d3;
|
| 2803 |
env->dregs[4] = regs->d4;
|
| 2804 |
env->dregs[5] = regs->d5;
|
| 2805 |
env->dregs[6] = regs->d6;
|
| 2806 |
env->dregs[7] = regs->d7;
|
| 2807 |
env->aregs[0] = regs->a0;
|
| 2808 |
env->aregs[1] = regs->a1;
|
| 2809 |
env->aregs[2] = regs->a2;
|
| 2810 |
env->aregs[3] = regs->a3;
|
| 2811 |
env->aregs[4] = regs->a4;
|
| 2812 |
env->aregs[5] = regs->a5;
|
| 2813 |
env->aregs[6] = regs->a6;
|
| 2814 |
env->aregs[7] = regs->usp;
|
| 2815 |
env->sr = regs->sr; |
| 2816 |
ts->sim_syscalls = 1;
|
| 2817 |
} |
| 2818 |
#elif defined(TARGET_MICROBLAZE)
|
| 2819 |
{
|
| 2820 |
env->regs[0] = regs->r0;
|
| 2821 |
env->regs[1] = regs->r1;
|
| 2822 |
env->regs[2] = regs->r2;
|
| 2823 |
env->regs[3] = regs->r3;
|
| 2824 |
env->regs[4] = regs->r4;
|
| 2825 |
env->regs[5] = regs->r5;
|
| 2826 |
env->regs[6] = regs->r6;
|
| 2827 |
env->regs[7] = regs->r7;
|
| 2828 |
env->regs[8] = regs->r8;
|
| 2829 |
env->regs[9] = regs->r9;
|
| 2830 |
env->regs[10] = regs->r10;
|
| 2831 |
env->regs[11] = regs->r11;
|
| 2832 |
env->regs[12] = regs->r12;
|
| 2833 |
env->regs[13] = regs->r13;
|
| 2834 |
env->regs[14] = regs->r14;
|
| 2835 |
env->regs[15] = regs->r15;
|
| 2836 |
env->regs[16] = regs->r16;
|
| 2837 |
env->regs[17] = regs->r17;
|
| 2838 |
env->regs[18] = regs->r18;
|
| 2839 |
env->regs[19] = regs->r19;
|
| 2840 |
env->regs[20] = regs->r20;
|
| 2841 |
env->regs[21] = regs->r21;
|
| 2842 |
env->regs[22] = regs->r22;
|
| 2843 |
env->regs[23] = regs->r23;
|
| 2844 |
env->regs[24] = regs->r24;
|
| 2845 |
env->regs[25] = regs->r25;
|
| 2846 |
env->regs[26] = regs->r26;
|
| 2847 |
env->regs[27] = regs->r27;
|
| 2848 |
env->regs[28] = regs->r28;
|
| 2849 |
env->regs[29] = regs->r29;
|
| 2850 |
env->regs[30] = regs->r30;
|
| 2851 |
env->regs[31] = regs->r31;
|
| 2852 |
env->sregs[SR_PC] = regs->pc; |
| 2853 |
} |
| 2854 |
#elif defined(TARGET_MIPS)
|
| 2855 |
{
|
| 2856 |
int i;
|
| 2857 |
|
| 2858 |
for(i = 0; i < 32; i++) { |
| 2859 |
env->active_tc.gpr[i] = regs->regs[i]; |
| 2860 |
} |
| 2861 |
env->active_tc.PC = regs->cp0_epc; |
| 2862 |
} |
| 2863 |
#elif defined(TARGET_SH4)
|
| 2864 |
{
|
| 2865 |
int i;
|
| 2866 |
|
| 2867 |
for(i = 0; i < 16; i++) { |
| 2868 |
env->gregs[i] = regs->regs[i]; |
| 2869 |
} |
| 2870 |
env->pc = regs->pc; |
| 2871 |
} |
| 2872 |
#elif defined(TARGET_ALPHA)
|
| 2873 |
{
|
| 2874 |
int i;
|
| 2875 |
|
| 2876 |
for(i = 0; i < 28; i++) { |
| 2877 |
env->ir[i] = ((abi_ulong *)regs)[i]; |
| 2878 |
} |
| 2879 |
env->ipr[IPR_USP] = regs->usp; |
| 2880 |
env->ir[30] = regs->usp;
|
| 2881 |
env->pc = regs->pc; |
| 2882 |
env->unique = regs->unique; |
| 2883 |
} |
| 2884 |
#elif defined(TARGET_CRIS)
|
| 2885 |
{
|
| 2886 |
env->regs[0] = regs->r0;
|
| 2887 |
env->regs[1] = regs->r1;
|
| 2888 |
env->regs[2] = regs->r2;
|
| 2889 |
env->regs[3] = regs->r3;
|
| 2890 |
env->regs[4] = regs->r4;
|
| 2891 |
env->regs[5] = regs->r5;
|
| 2892 |
env->regs[6] = regs->r6;
|
| 2893 |
env->regs[7] = regs->r7;
|
| 2894 |
env->regs[8] = regs->r8;
|
| 2895 |
env->regs[9] = regs->r9;
|
| 2896 |
env->regs[10] = regs->r10;
|
| 2897 |
env->regs[11] = regs->r11;
|
| 2898 |
env->regs[12] = regs->r12;
|
| 2899 |
env->regs[13] = regs->r13;
|
| 2900 |
env->regs[14] = info->start_stack;
|
| 2901 |
env->regs[15] = regs->acr;
|
| 2902 |
env->pc = regs->erp; |
| 2903 |
} |
| 2904 |
#else
|
| 2905 |
#error unsupported target CPU
|
| 2906 |
#endif
|
| 2907 |
|
| 2908 |
#if defined(TARGET_ARM) || defined(TARGET_M68K)
|
| 2909 |
ts->stack_base = info->start_stack; |
| 2910 |
ts->heap_base = info->brk; |
| 2911 |
/* This will be filled in on the first SYS_HEAPINFO call. */
|
| 2912 |
ts->heap_limit = 0;
|
| 2913 |
#endif
|
| 2914 |
|
| 2915 |
if (gdbstub_port) {
|
| 2916 |
gdbserver_start (gdbstub_port); |
| 2917 |
gdb_handlesig(env, 0);
|
| 2918 |
} |
| 2919 |
cpu_loop(env); |
| 2920 |
/* never exits */
|
| 2921 |
return 0; |
| 2922 |
} |