libc/src/pthread/pthread_attr_setguardsize.cpp

   1 //===-- Implementation of the pthread_attr_setguardsize -----------------===//
   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 #include "pthread_attr_setguardsize.h"
  10
  11 #include "src/__support/common.h"
  12
  13 #include <errno.h>
  14 #include <linux/param.h> // For EXEC_PAGESIZE.
  15 #include <pthread.h>
  16
  17 namespace __llvm_libc {
  18
  19 LLVM_LIBC_FUNCTION(int, pthread_attr_setguardsize,
  20                    (pthread_attr_t *__restrict attr, size_t guardsize)) {
  21   if (guardsize % EXEC_PAGESIZE != 0)
  22     return EINVAL;
  23   attr->__guardsize = guardsize;
  24   return 0;
  25 }
  26
  27 } // namespace __llvm_libc