/*
Called by landing pads during unwinding to figure out which stack segment we
are currently running on and record the stack limit (which was not restored
when unwinding through __morestack).
*/
void
rust_task::reset_stack_limit() {
I(thread, on_rust_stack());
uintptr_t sp = get_sp();
// Have to do the rest on the C stack because it involves
// freeing stack segments, logging, etc.
// FIXME: This probably doesn't need to happen on the C
// stack now
reset_args ra = {this, sp};
call_on_c_stack(&ra, (void*)reset_stack_limit_on_c_stack);
}
void
rust_task::delete_all_stacks() {
I(thread, !on_rust_stack());
// Delete all the stacks. There may be more than one if the task failed
// and no landing pads stopped to clean up.
I(thread, stk->next == NULL);
while (stk != NULL) {
stk_seg *prev = stk->prev;
free_stack(stk);
stk = prev;
}
}
void
rust_task::delete_all_stacks() {
assert(!on_rust_stack());
// Delete all the stacks. There may be more than one if the task failed
// and no landing pads stopped to clean up.
assert(stk->next == NULL);
while (stk != NULL) {
stk_seg *prev = stk->prev;
if (stk->is_big)
sched_loop->return_big_stack(stk);
else
free_stack(stk);
stk = prev;
}
}
