Merge "debuggerd_handler: increase thread stack size."

    g_callbacks = *callbacks;

  }

  void* thread_stack_allocation =

    mmap(nullptr, PAGE_SIZE * 3, PROT_NONE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);

  size_t thread_stack_pages = 8;

  void* thread_stack_allocation = mmap(nullptr, PAGE_SIZE * (thread_stack_pages + 2), PROT_NONE,

                                       MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);

  if (thread_stack_allocation == MAP_FAILED) {

    fatal_errno("failed to allocate debuggerd thread stack");

  }

  char* stack = static_cast<char*>(thread_stack_allocation) + PAGE_SIZE;

  if (mprotect(stack, PAGE_SIZE, PROT_READ | PROT_WRITE) != 0) {

  if (mprotect(stack, PAGE_SIZE * thread_stack_pages, PROT_READ | PROT_WRITE) != 0) {

    fatal_errno("failed to mprotect debuggerd thread stack");

  }

  // Stack grows negatively, set it to the last byte in the page...

  stack = (stack + PAGE_SIZE - 1);

  stack = (stack + thread_stack_pages * PAGE_SIZE - 1);

  // and align it.

  stack -= 15;

  pseudothread_stack = stack;