2002-02-17  Andrew Cagney  <ac131313@redhat.com>

	* gdbarch.sh (FRAME_CHAIN_VALID): Only require at level 2.
	Default to func_frame_chain_valid.
	* gdbarch.h, gdbarch.c: Re-generate.
	* frame.h (FRAME_CHAIN_VALID): Delete definition.

Index: frame.h
===================================================================
RCS file: /cvs/src/src/gdb/frame.h,v
retrieving revision 1.8
diff -u -r1.8 frame.h
--- frame.h	2001/12/07 12:10:15	1.8
+++ frame.h	2002/02/17 17:17:04
@@ -152,9 +152,6 @@
    targets.  If FRAME_CHAIN_VALID returns zero it means that the given frame
    is the outermost one and has no caller.
 
-   If a particular target needs a different definition, then it can override
-   the definition here by providing one in the tm file.
-
    XXXX - both default and alternate frame_chain_valid functions are
    deprecated.  New code should use dummy frames and one of the
    generic functions. */
@@ -165,17 +162,6 @@
 extern int generic_file_frame_chain_valid (CORE_ADDR, struct frame_info *);
 extern int generic_func_frame_chain_valid (CORE_ADDR, struct frame_info *);
 extern void generic_save_dummy_frame_tos (CORE_ADDR sp);
-
-#if !defined (FRAME_CHAIN_VALID)
-#if !defined (FRAME_CHAIN_VALID_ALTERNATE)
-#define FRAME_CHAIN_VALID(chain, thisframe) file_frame_chain_valid (chain, thisframe)
-#else
-/* Use the alternate method of avoiding running up off the end of the frame
-   chain or following frames back into the startup code.  See the comments
-   in objfiles.h. */
-#define FRAME_CHAIN_VALID(chain, thisframe) func_frame_chain_valid (chain,thisframe)
-#endif /* FRAME_CHAIN_VALID_ALTERNATE */
-#endif /* FRAME_CHAIN_VALID */
 
 /* The stack frame that the user has specified for commands to act on.
    Note that one cannot assume this is the address of valid data.  */
Index: gdbarch.sh
===================================================================
RCS file: /cvs/src/src/gdb/gdbarch.sh,v
retrieving revision 1.116
diff -u -r1.116 gdbarch.sh
--- gdbarch.sh	2002/02/16 23:09:16	1.116
+++ gdbarch.sh	2002/02/17 17:17:05
@@ -545,8 +545,14 @@
 v:2:FRAME_ARGS_SKIP:CORE_ADDR:frame_args_skip::::0:-1
 f:2:FRAMELESS_FUNCTION_INVOCATION:int:frameless_function_invocation:struct frame_info *fi:fi:::generic_frameless_function_invocation_not::0
 f:2:FRAME_CHAIN:CORE_ADDR:frame_chain:struct frame_info *frame:frame::0:0
-# See comments on DUMMY_FRAME for why this is required at level 1.
-f:1:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0
+# Define a default FRAME_CHAIN_VALID, in the form that is suitable for
+# most targets.  If FRAME_CHAIN_VALID returns zero it means that the
+# given frame is the outermost one and has no caller.
+#
+# XXXX - both default and alternate frame_chain_valid functions are
+# deprecated.  New code should use dummy frames and one of the generic
+# functions.
+f:2:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe:::func_frame_chain_valid::0
 f:2:FRAME_SAVED_PC:CORE_ADDR:frame_saved_pc:struct frame_info *fi:fi::0:0
 f:2:FRAME_ARGS_ADDRESS:CORE_ADDR:frame_args_address:struct frame_info *fi:fi::0:0
 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:0