Fix the linker so that it will not silently generate ELF binaries with invalid progra...

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

diff --git a/gdb/dummy-frame.h b/gdb/dummy-frame.h
index c6aef72328e12f2d6be4c145c84b11f36e9244a6..7549469acb8bd14602d885249c1af4506eb48167 100644 (file)
--- a/gdb/dummy-frame.h
+++ b/gdb/dummy-frame.h
@@ -1,12 +1,12 @@
 /* Code dealing with dummy stack frames, for GDB, the GNU debugger.
 
-   Copyright (C) 2002, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2002-2016 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -15,37 +15,60 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #if !defined (DUMMY_FRAME_H)
 #define DUMMY_FRAME_H 1
 
-struct frame_info;
-struct regcache;
+#include "frame.h"
+
+struct infcall_suspend_state;
 struct frame_unwind;
-struct frame_id;
 
 /* 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 regcache *regcache,
-                             const struct frame_id *dummy_id);
+extern void dummy_frame_push (struct infcall_suspend_state *caller_state,
+                              const struct frame_id *dummy_id, ptid_t ptid);
+
+/* Pop the dummy frame DUMMY_ID, restoring program state to that before the
+   frame was created.
+   On return reinit_frame_cache has been called.
+   If the frame isn't found, flag an internal error.
+
+   NOTE: This can only pop the one frame, even if it is in the middle of the
+   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, ptid_t ptid);
+
+extern void dummy_frame_discard (struct frame_id dummy_id, ptid_t ptid);
 
 /* If the PC falls in a dummy frame, return a dummy frame
    unwinder.  */
 
-extern const struct frame_unwind *const dummy_frame_unwind;
+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 PTID 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 (struct frame_id dummy_id, ptid_t ptid,
+                                      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);
 
 #endif /* !defined (DUMMY_FRAME_H)  */