//===------- Linux implementation of the remap_file_pages function --------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// #include "src/sys/mman/remap_file_pages.h" #include "src/__support/OSUtil/syscall.h" // For internal syscall function. #include "src/__support/common.h" #include "src/__support/libc_errno.h" #include "src/__support/macros/config.h" #include // For syscall numbers. namespace LIBC_NAMESPACE_DECL { LLVM_LIBC_FUNCTION(int, remap_file_pages, (void *addr, size_t size, int prot, size_t pgoff, int flags)) { #ifdef SYS_remap_file_pages int ret = LIBC_NAMESPACE::syscall_impl(SYS_remap_file_pages, reinterpret_cast(addr), size, prot, pgoff, flags); #else #error "remap_file_pages syscall is not available." #endif // A negative return value indicates an error with the magnitude of the // value being the error code. if (ret < 0) { libc_errno = -ret; return -1; } return 0; } } // namespace LIBC_NAMESPACE_DECL