gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / gdb / dummy-frame.h

diff --git a/gdb/dummy-frame.h b/gdb/dummy-frame.h
index 1b3979d9dee975ff0aa553fbd3f12c1d2223b621..1d43510947131f1868874c6290b168cff707b271 100644 (file)
--- a/gdb/dummy-frame.h
+++ b/gdb/dummy-frame.h
@@ -1,6 +1,6 @@
 /* Code dealing with dummy stack frames, for GDB, the GNU debugger.
 
-   Copyright (C) 2002, 2004, 2007-2012 Free Software Foundation, Inc.
+   Copyright (C) 2002-2020 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -24,22 +24,19 @@
 
 struct infcall_suspend_state;
 struct frame_unwind;
+class thread_info;
 
 /* Push the information needed to identify, and unwind from, a dummy
    frame onto the dummy frame stack.  */
 
-/* NOTE: cagney/2004-08-02: This interface will eventually need to be
-   parameterized with the caller's thread - that will allow per-thread
-   dummy-frame stacks and, hence, per-thread inferior function
-   calls.  */
-
 /* NOTE: cagney/2004-08-02: In the case of ABIs using push_dummy_code
    containing more than one instruction, this interface many need to
    be expanded so that it knowns the lower/upper extent of the dummy
    frame's code.  */
 
-extern void dummy_frame_push (struct infcall_suspend_state *caller_state,
-                              const struct frame_id *dummy_id);
+extern void dummy_frame_push (infcall_suspend_state *caller_state,
+                             const frame_id *dummy_id,
+                             thread_info *thread);
 
 /* Pop the dummy frame DUMMY_ID, restoring program state to that before the
    frame was created.
@@ -50,13 +47,37 @@ extern void dummy_frame_push (struct infcall_suspend_state *caller_state,
    stack, because the other frames may be for different threads, and there's
    currently no way to tell which stack frame is for which thread.  */
 
-extern void dummy_frame_pop (struct frame_id dummy_id);
+extern void dummy_frame_pop (frame_id dummy_id, thread_info *thread);
 
-extern void dummy_frame_discard (struct frame_id dummy_id);
+extern void dummy_frame_discard (frame_id dummy_id, thread_info *thread);
 
 /* If the PC falls in a dummy frame, return a dummy frame
    unwinder.  */
 
 extern const struct frame_unwind dummy_frame_unwind;
 
+/* Destructor for dummy_frame.  DATA is supplied by registrant.
+   REGISTERS_VALID is 1 for dummy_frame_pop, 0 for dummy_frame_discard.  */
+typedef void (dummy_frame_dtor_ftype) (void *data, int registers_valid);
+
+/* Call DTOR with DTOR_DATA when DUMMY_ID frame of thread THREAD gets
+   discarded.  Dummy frame with DUMMY_ID must exist.  Multiple
+   destructors may be registered, they will be called in the reverse
+   order of registrations (LIFO).  */
+extern void register_dummy_frame_dtor (frame_id dummy_id,
+                                      thread_info *thread,
+                                      dummy_frame_dtor_ftype *dtor,
+                                      void *dtor_data);
+
+/* Return 1 if there exists any dummy frame with any of its registered
+   destructors equal to both DTOR and DTOR_DATA.  Return 0 otherwise.  */
+extern int find_dummy_frame_dtor (dummy_frame_dtor_ftype *dtor,
+                                 void *dtor_data);
+
+/* Default implementation of gdbarch_dummy_id.  Generate a dummy frame_id
+   for THIS_FRAME assuming that the frame is a dummy frame.  */
+
+extern struct frame_id default_dummy_id (struct gdbarch *gdbarch,
+                                        struct frame_info *this_frame);
+
 #endif /* !defined (DUMMY_FRAME_H)  */