libc/include/llvm-libc-macros/linux/unistd-macros.h

   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 #define _PC_FILESIZEBITS 0
  22 #define _PC_LINK_MAX 1
  23 #define _PC_MAX_CANON 2
  24 #define _PC_MAX_INPUT 3
  25 #define _PC_NAME_MAX 4
  26 #define _PC_PATH_MAX 5
  27 #define _PC_PIPE_BUF 6
  28 #define _PC_2_SYMLINKS 7
  29 #define _PC_ALLOC_SIZE_MIN 8
  30 #define _PC_REC_INCR_XFER_SIZE 9
  31 #define _PC_REC_MAX_XFER_SIZE 10
  32 #define _PC_REC_MIN_XFER_SIZE 11
  33 #define _PC_REC_XFER_ALIGN 12
  34 #define _PC_SYMLINK_MAX 13
  35 #define _PC_CHOWN_RESTRICTED 14
  36 #define _PC_NO_TRUNC 15
  37 #define _PC_VDISABLE 16
  38 #define _PC_ASYNC_IO 17
  39 #define _PC_PRIO_IO 18
  40 #define _PC_SYNC_IO 19
  41
  42 // TODO: Move these limit macros to a separate file
  43 #define _POSIX_CHOWN_RESTRICTED 1
  44 #define _POSIX_PIPE_BUF 512
  45 #define _POSIX_NO_TRUNC 1
  46 #define _POSIX_VDISABLE '\0'
  47
  48 // Macro to set up the call to the __llvm_libc_syscall function
  49 // This is to prevent the call from having fewer than 6 arguments, since six
  50 // arguments are always passed to the syscall. Unnecessary arguments are
  51 // ignored.
  52 #define __syscall_helper(sysno, arg1, arg2, arg3, arg4, arg5, arg6, ...)       \
  53   __llvm_libc_syscall((long)(sysno), (long)(arg1), (long)(arg2), (long)(arg3), \
  54                       (long)(arg4), (long)(arg5), (long)(arg6))
  55 #define syscall(...) __syscall_helper(__VA_ARGS__, 0, 1, 2, 3, 4, 5, 6)
  56
  57 #endif // LLVM_LIBC_MACROS_LINUX_UNISTD_MACROS_H