1 //===-- Definition of macros from unistd.h --------------------------------===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLVM_LIBC_MACROS_LINUX_UNISTD_MACROS_H 10 #define LLVM_LIBC_MACROS_LINUX_UNISTD_MACROS_H 11 12 // Values for mode argument to the access(...) function. 13 #define F_OK 0 14 #define X_OK 1 15 #define W_OK 2 16 #define R_OK 4 17 18 #define _SC_PAGESIZE 1 19 #define _SC_PAGE_SIZE _SC_PAGESIZE 20 21 // Macro to set up the call to the __llvm_libc_syscall function 22 // This is to prevent the call from having fewer than 6 arguments, since six 23 // arguments are always passed to the syscall. Unnecessary arguments are 24 // ignored. 25 #define __syscall_helper(sysno, arg1, arg2, arg3, arg4, arg5, arg6, ...) \ 26 __llvm_libc_syscall((long)(sysno), (long)(arg1), (long)(arg2), (long)(arg3), \ 27 (long)(arg4), (long)(arg5), (long)(arg6)) 28 #define syscall(...) __syscall_helper(__VA_ARGS__, 0, 1, 2, 3, 4, 5, 6) 29 30 #endif // LLVM_LIBC_MACROS_LINUX_UNISTD_MACROS_H 31