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f14eced5ac
Add a check in 'softmmu-uaccess.h' that the header is only include in system emulation, and rename it as 'uaccess.h'. Rename the API methods: - softmmu_[un]lock_user*() -> uaccess_[un]lock_user*() - softmmu_strlen_user() -> uaccess_strlen_user(). Update a pair of comments. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20231004090629.37473-9-philmd@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
64 lines
2.5 KiB
C
64 lines
2.5 KiB
C
/*
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* Helper routines to provide target memory access for semihosting
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* syscalls in system emulation mode.
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*
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* Copyright (c) 2007 CodeSourcery.
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*
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* This code is licensed under the GPL
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*/
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#ifndef SEMIHOSTING_UACCESS_H
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#define SEMIHOSTING_UACCESS_H
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#ifdef CONFIG_USER_ONLY
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#error Cannot include semihosting/uaccess.h from user emulation
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#endif
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#include "cpu.h"
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#define get_user_u64(val, addr) \
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({ uint64_t val_ = 0; \
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int ret_ = cpu_memory_rw_debug(env_cpu(env), (addr), \
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&val_, sizeof(val_), 0); \
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(val) = tswap64(val_); ret_; })
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#define get_user_u32(val, addr) \
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({ uint32_t val_ = 0; \
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int ret_ = cpu_memory_rw_debug(env_cpu(env), (addr), \
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&val_, sizeof(val_), 0); \
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(val) = tswap32(val_); ret_; })
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#define get_user_u8(val, addr) \
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({ uint8_t val_ = 0; \
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int ret_ = cpu_memory_rw_debug(env_cpu(env), (addr), \
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&val_, sizeof(val_), 0); \
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(val) = val_; ret_; })
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#define get_user_ual(arg, p) get_user_u32(arg, p)
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#define put_user_u64(val, addr) \
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({ uint64_t val_ = tswap64(val); \
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cpu_memory_rw_debug(env_cpu(env), (addr), &val_, sizeof(val_), 1); })
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#define put_user_u32(val, addr) \
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({ uint32_t val_ = tswap32(val); \
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cpu_memory_rw_debug(env_cpu(env), (addr), &val_, sizeof(val_), 1); })
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#define put_user_ual(arg, p) put_user_u32(arg, p)
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void *uaccess_lock_user(CPUArchState *env, target_ulong addr,
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target_ulong len, bool copy);
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#define lock_user(type, p, len, copy) uaccess_lock_user(env, p, len, copy)
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char *uaccess_lock_user_string(CPUArchState *env, target_ulong addr);
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#define lock_user_string(p) uaccess_lock_user_string(env, p)
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void uaccess_unlock_user(CPUArchState *env, void *p,
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target_ulong addr, target_ulong len);
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#define unlock_user(s, args, len) uaccess_unlock_user(env, s, args, len)
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ssize_t uaccess_strlen_user(CPUArchState *env, target_ulong addr);
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#define target_strlen(p) uaccess_strlen_user(env, p)
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#endif /* SEMIHOSTING_SOFTMMU_UACCESS_H */
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