38 lines
707 B
C++
38 lines
707 B
C++
// syscall_args.h
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#ifndef _SYSCALL_ARGS_H
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#define _SYSCALL_ARGS_H
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#include <KernelExport.h>
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#include <vm.h>
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// Hack to be able to use the IS_USER_ADDRESS macro when compiling for R5.
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#ifdef R5_MEMORY_LAYOUT
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# undef KERNEL_BASE
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# define KERNEL_BASE 0x0
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#endif
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// copy_ref_var_from_user
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template<typename T>
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inline
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status_t
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copy_ref_var_from_user(T *user, T &kernel)
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{
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if (!IS_USER_ADDRESS(user))
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return B_BAD_ADDRESS;
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return user_memcpy(&kernel, user, sizeof(T));
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}
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// copy_ref_var_to_user
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template<typename T>
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inline
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status_t
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copy_ref_var_to_user(T &kernel, T *user)
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{
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if (!IS_USER_ADDRESS(user))
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return B_BAD_ADDRESS;
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return user_memcpy(user, &kernel, sizeof(T));
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}
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#endif // _SYSCALL_ARGS_H
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