/* * Helper routines to provide target memory access for semihosting * syscalls in system emulation mode. * * Copyright (c) 2007 CodeSourcery. * * This code is licenced under the GPL */static inline uint32_t softmmu_tget32(CPUState *env, uint32_t addr){    uint32_t val;    cpu_memory_rw_debug(env, addr, (uint8_t *)&val, 4, 0);    return tswap32(val);}static inline uint32_t softmmu_tget8(CPUState *env, uint32_t addr){    uint8_t val;    cpu_memory_rw_debug(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(CPUState *env, uint32_t addr, uint32_t val){    val = tswap32(val);    cpu_memory_rw_debug(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(CPUState *env, uint32_t addr, uint32_t len,                               int copy){    char *p;    /* TODO: Make this something that isn't fixed size.  */    p = malloc(len);    if (copy)        cpu_memory_rw_debug(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(CPUState *env, uint32_t addr){    char *p;    char *s;    uint8_t c;    /* TODO: Make this something that isn't fixed size.  */    s = p = malloc(1024);    do {        cpu_memory_rw_debug(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(CPUState *env, void *p, target_ulong addr,                                target_ulong len){    if (len)        cpu_memory_rw_debug(env, addr, p, len, 1);    free(p);}#define unlock_user(s, args, len) softmmu_unlock_user(env, s, args, len)