libc/src/__support/OSUtil/darwin/syscall.h

   1 //===---------------------- Darwin syscalls ---------------------*- C++ -*-===//
   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_SRC___SUPPORT_OSUTIL_DARWIN_SYSCALL_H
  10 #define LLVM_LIBC_SRC___SUPPORT_OSUTIL_DARWIN_SYSCALL_H
  11
  12 #include "src/__support/CPP/bit.h"
  13 #include "src/__support/common.h"
  14 #include "src/__support/macros/properties/architectures.h"
  15
  16 #ifdef LIBC_TARGET_ARCH_IS_ANY_ARM
  17 #include "arm/syscall.h"
  18 #else
  19 #error "Unsupported architecture"
  20 #endif
  21
  22 namespace LIBC_NAMESPACE {
  23
  24 template <typename R, typename... Ts>
  25 LIBC_INLINE R syscall_impl(long __number, Ts... ts) {
  26   static_assert(sizeof...(Ts) <= 6, "Too many arguments for syscall");
  27   return cpp::bit_or_static_cast<R>(syscall_impl(__number, (long)ts...));
  28 }
  29
  30 } // namespace LIBC_NAMESPACE
  31
  32 #endif // LLVM_LIBC_SRC___SUPPORT_OSUTIL_DARWIN_SYSCALL_H