30 lines · cpp
1//===---------- Linux implementation of the mincore function --------------===//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-exception6//7//===----------------------------------------------------------------------===//8 9#include "src/sys/mman/mincore.h"10 11#include "src/__support/OSUtil/syscall.h" // For internal syscall function.12 13#include "src/__support/libc_errno.h"14#include "src/__support/macros/config.h"15#include <sys/syscall.h> // For syscall numbers.16 17namespace LIBC_NAMESPACE_DECL {18 19LLVM_LIBC_FUNCTION(int, mincore, (void *addr, size_t len, unsigned char *vec)) {20 long ret = syscall_impl(SYS_mincore, reinterpret_cast<long>(addr), len,21 reinterpret_cast<long>(vec));22 if (ret < 0) {23 libc_errno = static_cast<int>(-ret);24 return -1;25 }26 return 0;27}28 29} // namespace LIBC_NAMESPACE_DECL30