fusl/src/thread/pthread_attr_setstack.c

#include "pthread_impl.h"

int pthread_attr_setstack(pthread_attr_t* a, void* addr, size_t size) {
  if (size - PTHREAD_STACK_MIN > SIZE_MAX / 4)
    return EINVAL;
  a->_a_stackaddr = (size_t)addr + size;
  a->_a_stacksize = size - DEFAULT_STACK_SIZE;
  return 0;
}