softmmu-uaccess.h (2520B)
1 /* 2 * Helper routines to provide target memory access for semihosting 3 * syscalls in system emulation mode. 4 * 5 * Copyright (c) 2007 CodeSourcery. 6 * 7 * This code is licensed under the GPL 8 */ 9 10 #ifndef SEMIHOSTING_SOFTMMU_UACCESS_H 11 #define SEMIHOSTING_SOFTMMU_UACCESS_H 12 13 #include "cpu.h" 14 15 #define get_user_u64(val, addr) \ 16 ({ uint64_t val_ = 0; \ 17 int ret_ = cpu_memory_rw_debug(env_cpu(env), (addr), \ 18 &val_, sizeof(val_), 0); \ 19 (val) = tswap64(val_); ret_; }) 20 21 #define get_user_u32(val, addr) \ 22 ({ uint32_t val_ = 0; \ 23 int ret_ = cpu_memory_rw_debug(env_cpu(env), (addr), \ 24 &val_, sizeof(val_), 0); \ 25 (val) = tswap32(val_); ret_; }) 26 27 #define get_user_u8(val, addr) \ 28 ({ uint8_t val_ = 0; \ 29 int ret_ = cpu_memory_rw_debug(env_cpu(env), (addr), \ 30 &val_, sizeof(val_), 0); \ 31 (val) = val_; ret_; }) 32 33 #define get_user_ual(arg, p) get_user_u32(arg, p) 34 35 #define put_user_u64(val, addr) \ 36 ({ uint64_t val_ = tswap64(val); \ 37 cpu_memory_rw_debug(env_cpu(env), (addr), &val_, sizeof(val_), 1); }) 38 39 #define put_user_u32(val, addr) \ 40 ({ uint32_t val_ = tswap32(val); \ 41 cpu_memory_rw_debug(env_cpu(env), (addr), &val_, sizeof(val_), 1); }) 42 43 #define put_user_ual(arg, p) put_user_u32(arg, p) 44 45 void *softmmu_lock_user(CPUArchState *env, target_ulong addr, 46 target_ulong len, bool copy); 47 #define lock_user(type, p, len, copy) softmmu_lock_user(env, p, len, copy) 48 49 char *softmmu_lock_user_string(CPUArchState *env, target_ulong addr); 50 #define lock_user_string(p) softmmu_lock_user_string(env, p) 51 52 void softmmu_unlock_user(CPUArchState *env, void *p, 53 target_ulong addr, target_ulong len); 54 #define unlock_user(s, args, len) softmmu_unlock_user(env, s, args, len) 55 56 ssize_t softmmu_strlen_user(CPUArchState *env, target_ulong addr); 57 #define target_strlen(p) softmmu_strlen_user(env, p) 58 59 #endif /* SEMIHOSTING_SOFTMMU_UACCESS_H */