text: /*
   * \brief  setcontext/getcontext/makecontext/swapcontext support library
   * \author Alexander Tormasov
   * \date   2021-03-12
   */
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  void *alloc_secondary_stack(char const *name, unsigned long stack_size);
  void free_secondary_stack(void *stack);
  
  #ifdef __cplusplus
  }
  #endif
  