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