starboard/shared/linux/memory_get_stack_bounds.cc

// Copyright 2016 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "starboard/memory.h"

#include <pthread.h>

#include "starboard/common/log.h"

#if SB_API_VERSION < 15
void SbMemoryGetStackBounds(void** out_high, void** out_low) {
  void* stackBase = 0;
  size_t stackSize = 0;

  pthread_t thread = pthread_self();
  pthread_attr_t sattr;
  pthread_attr_init(&sattr);
  pthread_getattr_np(thread, &sattr);
  int rc = pthread_attr_getstack(&sattr, &stackBase, &stackSize);
  SB_DCHECK(rc == 0);
  SB_DCHECK(stackBase);
  pthread_attr_destroy(&sattr);
  *out_high = static_cast<char*>(stackBase) + stackSize;
  *out_low = stackBase;
}
#endif