//===-- Syscall wrapper for pkey_mprotect -----------------------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIBC_SRC___SUPPORT_OSUTIL_SYSCALL_WRAPPERS_PKEY_MPROTECT_H
#define LLVM_LIBC_SRC___SUPPORT_OSUTIL_SYSCALL_WRAPPERS_PKEY_MPROTECT_H

#include "hdr/errno_macros.h"
#include "src/__support/OSUtil/linux/syscall.h" // syscall_impl
#include "src/__support/common.h"
#include "src/__support/error_or.h"
#include "src/__support/macros/config.h"
#include <sys/syscall.h> // For syscall numbers

namespace LIBC_NAMESPACE_DECL {
namespace linux_syscalls {

LIBC_INLINE ErrorOr<int> pkey_mprotect(void *addr, size_t len, int prot,
                                       int pkey) {
#if !defined(SYS_pkey_mprotect)
  return Error(ENOSYS);
#else
  int ret = syscall_impl<int>(SYS_pkey_mprotect, reinterpret_cast<long>(addr),
                              len, prot, pkey);
  if (ret < 0)
    return Error(-ret);
  return ret;
#endif
}

} // namespace linux_syscalls
} // namespace LIBC_NAMESPACE_DECL

#endif // LLVM_LIBC_SRC___SUPPORT_OSUTIL_SYSCALL_WRAPPERS_PKEY_MPROTECT_H
