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del qemu/target-m68k/m68k-semi.c

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Nguyen Anh Quynh 2017-01-20 11:52:31 +08:00
parent ec6602a7e1
commit 94e55f45c1
3 changed files with 0 additions and 195 deletions
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79
qemu/include/exec/softmmu-semi.h
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@ -1,79 +0,0 @@
/*
* Helper routines to provide target memory access for semihosting
* syscalls in system emulation mode.
*
* Copyright (c) 2007 CodeSourcery.
*
* This code is licensed under the GPL
*/
#ifndef SOFTMMU_SEMI_H
#define SOFTMMU_SEMI_H 1
static inline uint32_t softmmu_tget32(CPUArchState *env, uint32_t addr)
{
uint32_t val;
cpu_memory_rw_debug(ENV_GET_CPU(env), addr, (uint8_t *)&val, 4, 0);
return tswap32(val);
}
static inline uint32_t softmmu_tget8(CPUArchState *env, uint32_t addr)
{
uint8_t val;
cpu_memory_rw_debug(ENV_GET_CPU(env), addr, &val, 1, 0);
return val;
}
#define get_user_u32(arg, p) ({ arg = softmmu_tget32(env, p) ; 0; })
#define get_user_u8(arg, p) ({ arg = softmmu_tget8(env, p) ; 0; })
#define get_user_ual(arg, p) get_user_u32(arg, p)
static inline void softmmu_tput32(CPUArchState *env, uint32_t addr, uint32_t val)
{
val = tswap32(val);
cpu_memory_rw_debug(ENV_GET_CPU(env), addr, (uint8_t *)&val, 4, 1);
}
#define put_user_u32(arg, p) ({ softmmu_tput32(env, p, arg) ; 0; })
#define put_user_ual(arg, p) put_user_u32(arg, p)
static void *softmmu_lock_user(CPUArchState *env, uint32_t addr, uint32_t len,
int copy)
{
uint8_t *p;
/* TODO: Make this something that isn't fixed size. */
p = malloc(len);
if (p && copy) {
cpu_memory_rw_debug(ENV_GET_CPU(env), addr, p, len, 0);
}
return p;
}
#define lock_user(type, p, len, copy) softmmu_lock_user(env, p, len, copy)
static char *softmmu_lock_user_string(CPUArchState *env, uint32_t addr)
{
char *p;
char *s;
uint8_t c;
/* TODO: Make this something that isn't fixed size. */
s = p = malloc(1024);
if (!s) {
return NULL;
}
do {
cpu_memory_rw_debug(ENV_GET_CPU(env), addr, &c, 1, 0);
addr++;
*(p++) = c;
} while (c);
return s;
}
#define lock_user_string(p) softmmu_lock_user_string(env, p)
static void softmmu_unlock_user(CPUArchState *env, void *p, target_ulong addr,
target_ulong len)
{
if (len) {
cpu_memory_rw_debug(ENV_GET_CPU(env), addr, p, len, 1);
}
free(p);
}
#define unlock_user(s, args, len) softmmu_unlock_user(env, s, args, len)
#endif

1
qemu/target-m68k/Makefile.objs
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@ -1,3 +1,2 @@
#obj-y += m68k-semi.o
obj-y += translate.o op_helper.o helper.o cpu.o
obj-y += unicorn.o

115
qemu/target-m68k/m68k-semi.c
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@ -1,115 +0,0 @@
/*
* m68k/ColdFire Semihosting syscall interface
*
* Copyright (c) 2005-2007 CodeSourcery.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/time.h>
#include <time.h>
#include "cpu.h"
#if defined(CONFIG_USER_ONLY)
#include "qemu.h"
#define SEMIHOSTING_HEAP_SIZE (128 * 1024 * 1024)
#else
#include "qemu-common.h"
#include "exec/softmmu-semi.h"
#endif
#include "sysemu/sysemu.h"
#define HOSTED_EXIT 0
#define HOSTED_INIT_SIM 1
#define HOSTED_OPEN 2
#define HOSTED_CLOSE 3
#define HOSTED_READ 4
#define HOSTED_WRITE 5
#define HOSTED_LSEEK 6
#define HOSTED_RENAME 7
#define HOSTED_UNLINK 8
#define HOSTED_STAT 9
#define HOSTED_FSTAT 10
#define HOSTED_GETTIMEOFDAY 11
#define HOSTED_ISATTY 12
#define HOSTED_SYSTEM 13
static void translate_stat(CPUM68KState *env, target_ulong addr, struct stat *s)
{
}
static void m68k_semi_return_u32(CPUM68KState *env, uint32_t ret, uint32_t err)
{
target_ulong args = env->dregs[1];
if (put_user_u32(ret, args) ||
put_user_u32(err, args + 4)) {
/* The m68k semihosting ABI does not provide any way to report this
* error to the guest, so the best we can do is log it in qemu.
* It is always a guest error not to pass us a valid argument block.
*/
qemu_log_mask(LOG_GUEST_ERROR, "m68k-semihosting: return value "
"discarded because argument block not writable\n");
}
}
static void m68k_semi_return_u64(CPUM68KState *env, uint64_t ret, uint32_t err)
{
target_ulong args = env->dregs[1];
if (put_user_u32(ret >> 32, args) ||
put_user_u32(ret, args + 4) ||
put_user_u32(err, args + 8)) {
/* No way to report this via m68k semihosting ABI; just log it */
qemu_log_mask(LOG_GUEST_ERROR, "m68k-semihosting: return value "
"discarded because argument block not writable\n");
}
}
static int m68k_semi_is_fseek;
static void m68k_semi_cb(CPUState *cs, target_ulong ret, target_ulong err)
{
M68kCPU *cpu = M68K_CPU(cs->uc, cs);
CPUM68KState *env = &cpu->env;
if (m68k_semi_is_fseek) {
/* FIXME: We've already lost the high bits of the fseek
return value. */
m68k_semi_return_u64(env, ret, err);
m68k_semi_is_fseek = 0;
} else {
m68k_semi_return_u32(env, ret, err);
}
}
/* Read the input value from the argument block; fail the semihosting
* call if the memory read fails.
*/
#define GET_ARG(n) do { \
if (get_user_ual(arg ## n, args + (n) * 4)) { \
result = -1; \
errno = EFAULT; \
goto failed; \
} \
} while (0)
void do_m68k_semihosting(CPUM68KState *env, int nr)
{
}