1//===----------------------- Linux 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_LINUX_SYSCALL_H
10#define LLVM_LIBC_SRC___SUPPORT_OSUTIL_LINUX_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_X86_64
17#include "x86_64/syscall.h"
18#elif defined(LIBC_TARGET_ARCH_IS_AARCH64)
19#include "aarch64/syscall.h"
20#elif defined(LIBC_TARGET_ARCH_IS_ARM)
21#include "arm/syscall.h"
22#elif defined(LIBC_TARGET_ARCH_IS_ANY_RISCV)
23#include "riscv/syscall.h"
24#endif
25
26namespace LIBC_NAMESPACE {
27
28template <typename R, typename... Ts>
29LIBC_INLINE R syscall_impl(long __number, Ts... ts) {
30 static_assert(sizeof...(Ts) <= 6, "Too many arguments for syscall");
31 return cpp::bit_or_static_cast<R>(syscall_impl(__number, (long)ts...));
32}
33
34} // namespace LIBC_NAMESPACE
35
36#endif // LLVM_LIBC_SRC___SUPPORT_OSUTIL_LINUX_SYSCALL_H
37

source code of libc/src/__support/OSUtil/linux/syscall.h