/* We are using the bottom of the stack to save some information, like the
* valgrind_stack_id. Define smx_context_usable_stack_size to give the remaining
* size for the stack. */
/* We are using the bottom of the stack to save some information, like the
* valgrind_stack_id. Define smx_context_usable_stack_size to give the remaining
* size for the stack. */