-#include "frame.h"
-#include "dummy-frame.h"
-
-static int
-i386_cygwin_frame_chain_valid (CORE_ADDR chain, struct frame_info *thisframe)
-{
- /* In the context where this is used, we get the saved PC before we've
- successfully unwound far enough to be sure what we've got (it may
- be a signal handler caller). If we're dealing with a signal
- handler caller, this will return valid, which is fine. If not,
- it'll make the correct test. */
- return ((get_frame_type (thisframe) == SIGTRAMP_FRAME) || chain != 0);
-}
-/* Return the chain-pointer for FRAME. In the case of the i386, the
- frame's nominal address is the address of a 4-byte word containing
- the calling frame's address. */
-static CORE_ADDR
-i386_cygwin_frame_chain (struct frame_info *frame)
-{
- if (pc_in_dummy_frame (get_frame_pc (frame)))
- return get_frame_base (frame);