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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/config.h"
15#include "src/__support/macros/properties/architectures.h"
16
17#ifdef LIBC_TARGET_ARCH_IS_X86_32
18#include "i386/syscall.h"
19#elif defined(LIBC_TARGET_ARCH_IS_X86_64)
20#include "x86_64/syscall.h"
21#elif defined(LIBC_TARGET_ARCH_IS_AARCH64)
22#include "aarch64/syscall.h"
23#elif defined(LIBC_TARGET_ARCH_IS_ARM)
24#include "arm/syscall.h"
25#elif defined(LIBC_TARGET_ARCH_IS_ANY_RISCV)
26#include "riscv/syscall.h"
27#endif
28
29namespace LIBC_NAMESPACE_DECL {
30
31template <typename R, typename... Ts>
32LIBC_INLINE R syscall_impl(long __number, Ts... ts) {
33 static_assert(sizeof...(Ts) <= 6, "Too many arguments for syscall");
34 return cpp::bit_or_static_cast<R>(syscall_impl(__number, (long)ts...));
35}
36
37} // namespace LIBC_NAMESPACE_DECL
38
39#endif // LLVM_LIBC_SRC___SUPPORT_OSUTIL_LINUX_SYSCALL_H
40

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