16b3a45ccSpbrook /* 26b3a45ccSpbrook * Helper routines to provide target memory access for semihosting 36b3a45ccSpbrook * syscalls in system emulation mode. 46b3a45ccSpbrook * 56b3a45ccSpbrook * Copyright (c) 2007 CodeSourcery. 66b3a45ccSpbrook * 78e31bf38SMatthew Fernandez * This code is licensed under the GPL 86b3a45ccSpbrook */ 9175de524SMarkus Armbruster 10f14eced5SPhilippe Mathieu-Daudé #ifndef SEMIHOSTING_UACCESS_H 11f14eced5SPhilippe Mathieu-Daudé #define SEMIHOSTING_UACCESS_H 12f14eced5SPhilippe Mathieu-Daudé 13f14eced5SPhilippe Mathieu-Daudé #ifdef CONFIG_USER_ONLY 14f14eced5SPhilippe Mathieu-Daudé #error Cannot include semihosting/uaccess.h from user emulation 15f14eced5SPhilippe Mathieu-Daudé #endif 166b3a45ccSpbrook 17*3aac8abaSPhilippe Mathieu-Daudé #include "exec/cpu-common.h" 18*3aac8abaSPhilippe Mathieu-Daudé #include "exec/cpu-defs.h" 19*3aac8abaSPhilippe Mathieu-Daudé #include "exec/tswap.h" 20ec150c7eSMarkus Armbruster 218ce5c644SRichard Henderson #define get_user_u64(val, addr) \ 228ce5c644SRichard Henderson ({ uint64_t val_ = 0; \ 238ce5c644SRichard Henderson int ret_ = cpu_memory_rw_debug(env_cpu(env), (addr), \ 248ce5c644SRichard Henderson &val_, sizeof(val_), 0); \ 258ce5c644SRichard Henderson (val) = tswap64(val_); ret_; }) 2644d4a499SPeter Maydell 278ce5c644SRichard Henderson #define get_user_u32(val, addr) \ 288ce5c644SRichard Henderson ({ uint32_t val_ = 0; \ 298ce5c644SRichard Henderson int ret_ = cpu_memory_rw_debug(env_cpu(env), (addr), \ 308ce5c644SRichard Henderson &val_, sizeof(val_), 0); \ 318ce5c644SRichard Henderson (val) = tswap32(val_); ret_; }) 3244d4a499SPeter Maydell 338ce5c644SRichard Henderson #define get_user_u8(val, addr) \ 348ce5c644SRichard Henderson ({ uint8_t val_ = 0; \ 358ce5c644SRichard Henderson int ret_ = cpu_memory_rw_debug(env_cpu(env), (addr), \ 368ce5c644SRichard Henderson &val_, sizeof(val_), 0); \ 378ce5c644SRichard Henderson (val) = val_; ret_; }) 386b3a45ccSpbrook 392f619698Sbellard #define get_user_ual(arg, p) get_user_u32(arg, p) 406b3a45ccSpbrook 418ce5c644SRichard Henderson #define put_user_u64(val, addr) \ 428ce5c644SRichard Henderson ({ uint64_t val_ = tswap64(val); \ 438ce5c644SRichard Henderson cpu_memory_rw_debug(env_cpu(env), (addr), &val_, sizeof(val_), 1); }) 4444d4a499SPeter Maydell 458ce5c644SRichard Henderson #define put_user_u32(val, addr) \ 468ce5c644SRichard Henderson ({ uint32_t val_ = tswap32(val); \ 478ce5c644SRichard Henderson cpu_memory_rw_debug(env_cpu(env), (addr), &val_, sizeof(val_), 1); }) 488ce5c644SRichard Henderson 492f619698Sbellard #define put_user_ual(arg, p) put_user_u32(arg, p) 506b3a45ccSpbrook 51f14eced5SPhilippe Mathieu-Daudé void *uaccess_lock_user(CPUArchState *env, target_ulong addr, 520a922181SRichard Henderson target_ulong len, bool copy); 53f14eced5SPhilippe Mathieu-Daudé #define lock_user(type, p, len, copy) uaccess_lock_user(env, p, len, copy) 548ce5c644SRichard Henderson 55f14eced5SPhilippe Mathieu-Daudé char *uaccess_lock_user_string(CPUArchState *env, target_ulong addr); 56f14eced5SPhilippe Mathieu-Daudé #define lock_user_string(p) uaccess_lock_user_string(env, p) 578ce5c644SRichard Henderson 58f14eced5SPhilippe Mathieu-Daudé void uaccess_unlock_user(CPUArchState *env, void *p, 590a922181SRichard Henderson target_ulong addr, target_ulong len); 60f14eced5SPhilippe Mathieu-Daudé #define unlock_user(s, args, len) uaccess_unlock_user(env, s, args, len) 61cb9c377fSPaolo Bonzini 62f14eced5SPhilippe Mathieu-Daudé ssize_t uaccess_strlen_user(CPUArchState *env, target_ulong addr); 63f14eced5SPhilippe Mathieu-Daudé #define target_strlen(p) uaccess_strlen_user(env, p) 645f9ca6f3SRichard Henderson 65c89a14adSRichard Henderson #endif /* SEMIHOSTING_SOFTMMU_UACCESS_H */ 66