* remote-utils.c (try_rle): New function.

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

diff --git a/gdb/dummy-frame.h b/gdb/dummy-frame.h
index 6bdebee88786b258251581f3db5a1b19c3618fa0..c6aef72328e12f2d6be4c145c84b11f36e9244a6 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 2002 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2004 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -16,51 +16,36 @@
 
    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., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.  */
 
 #if !defined (DUMMY_FRAME_H)
 #define DUMMY_FRAME_H 1
 
 struct frame_info;
 struct regcache;
+struct frame_unwind;
+struct frame_id;
 
-/* GENERIC DUMMY FRAMES
-  
-   The following code serves to maintain the dummy stack frames for
-   inferior function calls (ie. when gdb calls into the inferior via
-   call_function_by_hand).  This code saves the machine state before
-   the call in host memory, so we must maintain an independent stack
-   and keep it consistant etc.  I am attempting to make this code
-   generic enough to be used by many targets.
- 
-   The cheapest and most generic way to do CALL_DUMMY on a new target
-   is probably to define CALL_DUMMY to be empty, CALL_DUMMY_LENGTH to
-   zero, and CALL_DUMMY_LOCATION to AT_ENTRY.  Then you must remember
-   to define PUSH_RETURN_ADDRESS, because no call instruction will be
-   being executed by the target.  Also FRAME_CHAIN_VALID as
-   generic_{file,func}_frame_chain_valid and FIX_CALL_DUMMY as
-   generic_fix_call_dummy.  */
+/* Push the information needed to identify, and unwind from, a dummy
+   frame onto the dummy frame stack.  */
 
-/* Assuming that FRAME is a dummy, return a register value for the
-   previous frame.  */
+/* 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.  */
 
-extern void generic_call_dummy_register_unwind (struct frame_info *frame,
-                                               void **unwind_cache,
-                                               int regnum,
-                                               int *optimized,
-                                               enum lval_type *lvalp,
-                                               CORE_ADDR *addrp,
-                                               int *realnump,
-                                               void *valuep);
+/* 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.  */
 
-/* Return the regcache that belongs to the dummy-frame identifed by PC
-   and FP, or NULL if no such frame exists.  */
-/* FIXME: cagney/2002-11-08: The function only exists because of
-   deprecated_generic_get_saved_register.  Eliminate that function and
-   this, to, can go.  */
+extern void dummy_frame_push (struct regcache *regcache,
+                             const struct frame_id *dummy_id);
 
-extern struct regcache *generic_find_dummy_frame (CORE_ADDR pc,
-                                                 CORE_ADDR fp);
+/* If the PC falls in a dummy frame, return a dummy frame
+   unwinder.  */
+
+extern const struct frame_unwind *const dummy_frame_unwind;
 
 #endif /* !defined (DUMMY_FRAME_H)  */