* arm-tdep.c (arm_frame_chain_valid): Remove unnecessary test.

	* d10v-tdep.c (d10v_frame_chain_valid): Remove unnecessary tests.
	* hppa-tdep.c (hppa_frame_chain_valid): Remove unnecessary test.

	* blockframe.c: Include "gdbcmd.h" and "command.h".
	(backtrace_below_main): New variable.
	(file_frame_chain_valid, func_frame_chain_valid)
	(nonnull_frame_chain_valid, generic_file_frame_chain_valid)
	(generic_func_frame_chain_valid): Remove functions.
	(frame_chain_valid, do_flush_frames_sfunc): New functions.
	(_initialize_blockframe): New function.
	* Makefile.in (blockframe.o): Update dependencies.
	* frame.c (frame_saved_regs_id_unwind, get_prev_frame): Remove FIXME
	comment.  Call frame_chain_valid ().
	* frame.h: Remove old prototypes.  Add prototype for
	frame_chain_valid and update comments to match.
	* gdbarch.sh: Change FRAME_CHAIN_VALID into a predicated function.
	Remove old comment.
	* gdbarch.h: Regenerated.
	* gdbarch.c: Regenerated.

Plus updates to all other targets not to provide a FRAME_CHAIN_VALID.

40 files changed, 203 insertions, 206 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 63fbb55..774ac88 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,60 @@
+2003-01-04  Daniel Jacobowitz  <drow@mvista.com>
+
+	* arm-tdep.c (arm_frame_chain_valid):  Remove unnecessary test.
+	* d10v-tdep.c (d10v_frame_chain_valid): Remove unnecessary tests.
+	* hppa-tdep.c (hppa_frame_chain_valid): Remove unnecessary test.
+
+	* blockframe.c: Include "gdbcmd.h" and "command.h".
+	(backtrace_below_main): New variable.
+	(file_frame_chain_valid, func_frame_chain_valid)
+	(nonnull_frame_chain_valid, generic_file_frame_chain_valid)
+	(generic_func_frame_chain_valid): Remove functions.
+	(frame_chain_valid, do_flush_frames_sfunc): New functions.
+	(_initialize_blockframe): New function.
+	* Makefile.in (blockframe.o): Update dependencies.
+	* frame.c (frame_saved_regs_id_unwind, get_prev_frame): Remove FIXME
+	comment.  Call frame_chain_valid ().
+	* frame.h: Remove old prototypes.  Add prototype for
+	frame_chain_valid and update comments to match.
+	* gdbarch.sh: Change FRAME_CHAIN_VALID into a predicated function.
+	Remove old comment.
+	* gdbarch.h: Regenerated.
+	* gdbarch.c: Regenerated.
+
+	* alpha-tdep.c (alpha_gdbarch_init): Don't call
+	set_gdbarch_frame_chain_valid.
+	* avr-tdep.c (avr_gdbarch_init): Likewise.
+	* cris-tdep.c (cris_gdbarch_init): Likewise.
+	* frv-tdep.c (frv_gdbarch_init): Likewise.
+	* h8300-tdep.c (h8300_gdbarch_init): Likewise.
+	* i386-tdep.c (i386_svr4_init_abi): Likewise.
+	(i386_nw_init_abi): Likewise.
+	(i386_gdbarch_init): Likewise.
+	* ia64-tdep.c (ia64_gdbarch_init): Likewise.
+	* m68hc11-tdep.c (m68hc11_gdbarch_init): Likewise.
+	* m68k-tdep.c (m68k_gdbarch_init): Likewise.
+	* mcore-tdep.c (mcore_gdbarch_init): Likewise.
+	* mips-tdep.c (mips_gdbarch_init): Likewise.
+	* mn10300-tdep.c (mn10300_gdbarch_init): Likewise.
+	* ns32k-tdep.c (ns32k_gdbarch_init): Likewise.
+	* ppcnbsd-tdep.c (ppcnbsd_init_abi): Likewise.
+	* rs6000-tdep.c (rs6000_gdbarch_init): Likewise.
+	* s390-tdep.c (s390_gdbarch_init): Likewise.
+	* sh-tdep.c (sh_gdbarch_init): Likewise.
+	* sparc-tdep.c (sparc_gdbarch_init): Likewise.
+	* v850-tdep.c (v850_gdbarch_init): Likewise.
+	* vax-tdep.c (vax_gdbarch_init): Likewise.
+	* x86-64-tdep.c (x86_64_init_abi): Likewise.
+
+	* config/m32r/tm-m32r.h (FRAME_CHAIN_VALID): Don't define.
+	* config/m68k/tm-apollo68b.h (FRAME_CHAIN_VALID): Likewise.
+	* config/m68k/tm-m68kv4.h (FRAME_CHAIN_VALID): Likewise.
+	* config/m68k/tm-monitor.h (FRAME_CHAIN_VALID): Likewise.
+	* config/m68k/tm-os68k.h (FRAME_CHAIN_VALID): Likewise.
+	* config/m68k/tm-vx68.h (FRAME_CHAIN_VALID): Likewise.
+	* config/mn10200/tm-mn10200.h (FRAME_CHAIN_VALID): Likewise.
+	* config/sparc/tm-sparclite.h (FRAME_CHAIN_VALID): Likewise.
+
 2002-01-04  Daniel Jacobowitz  <drow@mvista.com>
 
 	* Makefile.in (acconfig_h): Remove incorrect macro.
diff --git a/gdb/Makefile.in b/gdb/Makefile.in
index cf4b808..8bccf6e 100644
--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -1537,7 +1537,7 @@ bcache.o: bcache.c $(defs_h) $(gdb_obstack_h) $(bcache_h) $(gdb_string_h)
 blockframe.o: blockframe.c $(defs_h) $(symtab_h) $(bfd_h) $(symfile_h) \
 	$(objfiles_h) $(frame_h) $(gdbcore_h) $(value_h) $(target_h) \
 	$(inferior_h) $(annotate_h) $(regcache_h) $(gdb_assert_h) \
-	$(dummy_frame_h)
+	$(dummy_frame_h) $(command_h) $(gdbcmd_h)
 breakpoint.o: breakpoint.c $(defs_h) $(symtab_h) $(frame_h) $(breakpoint_h) \
 	$(gdbtypes_h) $(expression_h) $(gdbcore_h) $(gdbcmd_h) $(value_h) \
 	$(command_h) $(inferior_h) $(gdbthread_h) $(target_h) $(language_h) \
diff --git a/gdb/alpha-tdep.c b/gdb/alpha-tdep.c
index 86cb625..8894783 100644
--- a/gdb/alpha-tdep.c
+++ b/gdb/alpha-tdep.c
@@ -1842,7 +1842,6 @@ alpha_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_saved_pc_after_call (gdbarch, alpha_saved_pc_after_call);
 
   set_gdbarch_frame_chain (gdbarch, alpha_frame_chain);
-  set_gdbarch_frame_chain_valid (gdbarch, func_frame_chain_valid);
   set_gdbarch_frame_saved_pc (gdbarch, alpha_frame_saved_pc);
 
   set_gdbarch_frame_init_saved_regs (gdbarch, alpha_frame_init_saved_regs);
diff --git a/gdb/arm-tdep.c b/gdb/arm-tdep.c
index 4c3f7fb..e988db4 100644
--- a/gdb/arm-tdep.c
+++ b/gdb/arm-tdep.c
@@ -159,7 +159,7 @@ struct frame_extra_info
 static int
 arm_frame_chain_valid (CORE_ADDR chain, struct frame_info *thisframe)
 {
-  return (chain != 0 && (FRAME_SAVED_PC (thisframe) >= LOWEST_PC));
+  return (FRAME_SAVED_PC (thisframe) >= LOWEST_PC);
 }
 
 /* Set to true if the 32-bit mode is in use.  */
diff --git a/gdb/avr-tdep.c b/gdb/avr-tdep.c
index d1b1416..64f8822 100644
--- a/gdb/avr-tdep.c
+++ b/gdb/avr-tdep.c
@@ -1,5 +1,5 @@
 /* Target-dependent code for Atmel AVR, for GDB.
-   Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002
+   Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
    Free Software Foundation, Inc.
 
    This file is part of GDB.
@@ -1262,7 +1262,6 @@ avr_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_frame_args_skip (gdbarch, 0);
   set_gdbarch_frameless_function_invocation (gdbarch, frameless_look_for_prologue);	/* ??? */
   set_gdbarch_frame_chain (gdbarch, avr_frame_chain);
-  set_gdbarch_frame_chain_valid (gdbarch, generic_func_frame_chain_valid);
   set_gdbarch_frame_saved_pc (gdbarch, avr_frame_saved_pc);
   set_gdbarch_frame_args_address (gdbarch, avr_frame_address);
   set_gdbarch_frame_locals_address (gdbarch, avr_frame_address);
diff --git a/gdb/blockframe.c b/gdb/blockframe.c
index 665b1ba..35fc798 100644
--- a/gdb/blockframe.c
+++ b/gdb/blockframe.c
@@ -2,7 +2,7 @@
    functions and pc values.
 
    Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
-   1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 Free Software
+   1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software
    Foundation, Inc.
 
    This file is part of GDB.
@@ -36,41 +36,16 @@
 #include "regcache.h"
 #include "gdb_assert.h"
 #include "dummy-frame.h"
+#include "command.h"
+#include "gdbcmd.h"
 
-/* Prototypes for exported functions. */
-
-void _initialize_blockframe (void);
+/* Flag to indicate whether backtraces should stop at main.  */
 
-/* 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. */
-
-int
-file_frame_chain_valid (CORE_ADDR chain, struct frame_info *thisframe)
-{
-  return ((chain) != 0
-	  && !inside_entry_file (frame_pc_unwind (thisframe)));
-}
-
-/* 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. */
-
-int
-func_frame_chain_valid (CORE_ADDR chain, struct frame_info *thisframe)
-{
-  return ((chain) != 0
-	  && !inside_main_func (get_frame_pc (thisframe))
-	  && !inside_entry_func (get_frame_pc (thisframe)));
-}
+static int backtrace_below_main;
 
-/* A very simple method of determining a valid frame */
+/* Prototypes for exported functions. */
 
-int
-nonnull_frame_chain_valid (CORE_ADDR chain, struct frame_info *thisframe)
-{
-  return ((chain) != 0);
-}
+void _initialize_blockframe (void);
 
 /* Is ADDR inside the startup file?  Note that if your machine
    has a way to detect the bottom of the stack, there is no need
@@ -689,34 +664,86 @@ deprecated_pc_in_call_dummy_at_entry_point (CORE_ADDR pc, CORE_ADDR sp,
 	  && (pc) <= (CALL_DUMMY_ADDRESS () + DECR_PC_AFTER_BREAK));
 }
 
-
 /* Function: frame_chain_valid 
    Returns true for a user frame or a call_function_by_hand dummy frame,
-   and false for the CRT0 start-up frame.  Purpose is to terminate backtrace */
+   and false for the CRT0 start-up frame.  Purpose is to terminate backtrace.  */
 
 int
-generic_file_frame_chain_valid (CORE_ADDR fp, struct frame_info *fi)
+frame_chain_valid (CORE_ADDR fp, struct frame_info *fi)
 {
-  if (DEPRECATED_PC_IN_CALL_DUMMY (frame_pc_unwind (fi), fp, fp))
-    return 1;			/* don't prune CALL_DUMMY frames */
-  else				/* fall back to default algorithm (see frame.h) */
-    return (fp != 0
-	    && (INNER_THAN (get_frame_base (fi), fp)
-		|| get_frame_base (fi) == fp)
-	    && !inside_entry_file (frame_pc_unwind (fi)));
+  /* Don't prune CALL_DUMMY frames.  */
+  if (DEPRECATED_USE_GENERIC_DUMMY_FRAMES
+      && DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fi), 0, 0))
+    return 1;
+
+  /* If the new frame pointer is zero, then it isn't valid.  */
+  if (fp == 0)
+    return 0;
+  
+  /* If the new frame would be inside (younger than) the previous frame,
+     then it isn't valid.  */
+  if (INNER_THAN (fp, get_frame_base (fi)))
+    return 0;
+  
+  /* If we're already inside the entry function for the main objfile, then it
+     isn't valid.  */
+  if (inside_entry_func (get_frame_pc (fi)))
+    return 0;
+
+  /* If we're inside the entry file, it isn't valid.  */
+  /* NOTE/drow 2002-12-25: should there be a way to disable this check?  It
+     assumes a single small entry file, and the way some debug readers (e.g.
+     dbxread) figure out which object is the entry file is somewhat hokey.  */
+  if (inside_entry_file (frame_pc_unwind (fi)))
+      return 0;
+
+  /* If we want backtraces to stop at main, and we're inside main, then it
+     isn't valid.  */
+  if (!backtrace_below_main && inside_main_func (get_frame_pc (fi)))
+    return 0;
+
+  /* If the architecture has a custom FRAME_CHAIN_VALID, call it now.  */
+  if (FRAME_CHAIN_VALID_P ())
+    return FRAME_CHAIN_VALID (fp, fi);
+
+  return 1;
 }
 
-int
-generic_func_frame_chain_valid (CORE_ADDR fp, struct frame_info *fi)
+void
+do_flush_frames_sfunc (char *args, int from_tty, struct cmd_list_element *c)
 {
-  if (DEPRECATED_USE_GENERIC_DUMMY_FRAMES
-      && DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (fi), 0, 0))
-    return 1;			/* don't prune CALL_DUMMY frames */
-  else				/* fall back to default algorithm (see frame.h) */
-    return (fp != 0
-	    && (INNER_THAN (get_frame_base (fi), fp)
-		|| get_frame_base (fi) == fp)
-	    && !inside_main_func (get_frame_pc (fi))
-	    && !inside_entry_func (get_frame_pc (fi)));
+  int saved_level;
+  struct frame_info *cur_frame;
+
+  if (! target_has_stack)
+    return;
+
+  saved_level = frame_relative_level (get_selected_frame ());
+
+  flush_cached_frames ();
+
+  cur_frame = find_relative_frame (get_current_frame (), &saved_level);
+  select_frame (cur_frame);
+
+  /* If we were below main and backtrace-below-main was turned off,
+     SAVED_LEVEL will be non-zero.  CUR_FRAME will point to main.
+     Accept this but print the new frame.  */
+  if (saved_level != 0)
+    print_stack_frame (get_selected_frame (), -1, 0);
 }
 
+void
+_initialize_blockframe (void)
+{
+  add_setshow_boolean_cmd ("backtrace-below-main", class_obscure,
+			   &backtrace_below_main,
+ "Set whether backtraces should continue past \"main\".\n"
+ "Normally the caller of \"main\" is not of interest, so GDB will terminate\n"
+ "the backtrace at \"main\".  Set this variable if you need to see the rest\n"
+ "of the stack trace.",
+ "Show whether backtraces should continue past \"main\".\n"
+ "Normally the caller of \"main\" is not of interest, so GDB will terminate\n"
+ "the backtrace at \"main\".  Set this variable if you need to see the rest\n"
+ "of the stack trace.",
+			   do_flush_frames_sfunc, NULL, &setlist, &showlist);
+}
diff --git a/gdb/config/m32r/tm-m32r.h b/gdb/config/m32r/tm-m32r.h
index 8dc86e4..aa92499 100644
--- a/gdb/config/m32r/tm-m32r.h
+++ b/gdb/config/m32r/tm-m32r.h
@@ -131,8 +131,6 @@ extern CORE_ADDR m32r_frame_chain (struct frame_info *fi);
 /* mvs_check  FRAME_CHAIN */
 #define FRAME_CHAIN(fi) 		m32r_frame_chain (fi)
 
-#define FRAME_CHAIN_VALID(fp, frame)	generic_file_frame_chain_valid (fp, frame)
-
 extern CORE_ADDR m32r_find_callers_reg (struct frame_info *fi, int regnum);
 extern CORE_ADDR m32r_frame_saved_pc (struct frame_info *);
 /* mvs_check  FRAME_SAVED_PC */
diff --git a/gdb/config/m68k/tm-apollo68b.h b/gdb/config/m68k/tm-apollo68b.h
index d43eec9..f0b7488 100644
--- a/gdb/config/m68k/tm-apollo68b.h
+++ b/gdb/config/m68k/tm-apollo68b.h
@@ -1,5 +1,5 @@
 /* Parameters for execution on Apollo 68k running BSD.
-   Copyright 1986, 1987, 1989, 1991, 1993, 1994, 1998
+   Copyright 1986, 1987, 1989, 1991, 1993, 1994, 1998, 2003
    Free Software Foundation, Inc.
    Contributed by Cygnus Support.
 
@@ -26,8 +26,6 @@
 
 #include "m68k/tm-m68k.h"
 
-#define FRAME_CHAIN_VALID(chain, thisframe) nonnull_frame_chain_valid (chain, thisframe)
-
 /* These are the jmp_buf registers I could guess. There are 13 registers
  * in the buffer. There are 8 data registers, 6 general address registers,
  * the Frame Pointer, the Stack Pointer, the PC and the SR in the chip. I would
diff --git a/gdb/config/m68k/tm-m68kv4.h b/gdb/config/m68k/tm-m68kv4.h
index 275ab62..11bb122 100644
--- a/gdb/config/m68k/tm-m68kv4.h
+++ b/gdb/config/m68k/tm-m68kv4.h
@@ -1,6 +1,6 @@
 /* Target definitions for GDB on a Motorola 680x0 running SVR4.
    (Commodore Amiga with amix or Atari TT with ASV)
-   Copyright 1991, 1994, 1995, 1996, 1998, 1999, 2000
+   Copyright 1991, 1994, 1995, 1996, 1998, 1999, 2000, 2003
    Free Software Foundation, Inc.
    Written by Fred Fish at Cygnus Support (fnf@cygint)
 
@@ -30,10 +30,6 @@
 
 #define DECR_PC_AFTER_BREAK 0	/* No decrement required */
 
-/* Use the alternate method of determining valid frame chains. */
-
-#define FRAME_CHAIN_VALID(fp,fi) func_frame_chain_valid (fp, fi)
-
 #include "config/tm-sysv4.h"
 #include "m68k/tm-m68k.h"
 
diff --git a/gdb/config/m68k/tm-monitor.h b/gdb/config/m68k/tm-monitor.h
index 6d38b55..1b00a8f 100644
--- a/gdb/config/m68k/tm-monitor.h
+++ b/gdb/config/m68k/tm-monitor.h
@@ -1,5 +1,5 @@
 /* Target machine definitions for a generic m68k monitor/emulator.
-   Copyright 1986, 1987, 1989, 1993, 1994, 1995, 1996, 1998, 1999
+   Copyright 1986, 1987, 1989, 1993, 1994, 1995, 1996, 1998, 1999, 2003
    Free Software Foundation, Inc.
 
    This file is part of GDB.
@@ -38,9 +38,4 @@
 
 #include "m68k/tm-m68k.h"
 
-/* Need to do this for ELF targets, where we can't figure out the boundaries of
-   the entry file.  This method stops the backtrace when we reach main.  */
-
-#define FRAME_CHAIN_VALID(fp,fi) func_frame_chain_valid (fp, fi)
-
 /* FIXME, should do GET_LONGJMP_TARGET for newlib.  */
diff --git a/gdb/config/m68k/tm-os68k.h b/gdb/config/m68k/tm-os68k.h
index ed1d5c8..2954570 100644
--- a/gdb/config/m68k/tm-os68k.h
+++ b/gdb/config/m68k/tm-os68k.h
@@ -1,5 +1,5 @@
 /* Parameters for execution on VxWorks m68k's, for GDB, the GNU debugger.
-   Copyright 1986, 1987, 1989, 1991, 1998 Free Software Foundation, Inc.
+   Copyright 1986, 1987, 1989, 1991, 1998, 2003 Free Software Foundation, Inc.
    Contributed by Cygnus Support.
 
    This file is part of GDB.
@@ -37,11 +37,3 @@
 
 #undef	FRAME_CHAIN
 #define FRAME_CHAIN(thisframe) ((thisframe)->frame? read_memory_integer ((thisframe)->frame, 4): 0)
-
-/* If the chain pointer is zero (either because the saved value fetched
-   by FRAME_CHAIN was zero, or because the current FP was zero so FRAME_CHAIN
-   never fetched anything), we are at the top of the stack.  */
-/* We are guaranteed to have a zero frame pointer at bottom of stack, too. */
-
-#undef FRAME_CHAIN_VALID
-#define FRAME_CHAIN_VALID(chain, thisframe) nonnull_frame_chain_valid (chain, thisframe)
diff --git a/gdb/config/m68k/tm-vx68.h b/gdb/config/m68k/tm-vx68.h
index ea27ac4..76ac6fd 100644
--- a/gdb/config/m68k/tm-vx68.h
+++ b/gdb/config/m68k/tm-vx68.h
@@ -1,5 +1,6 @@
 /* Target machine description for VxWorks m68k's, for GDB, the GNU debugger.
-   Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1996, 1998, 1999, 2000
+   Copyright 1986, 1987, 1989, 1991, 1992, 1993, 1996, 1998, 1999, 2000,
+   2002, 2003
    Free Software Foundation, Inc.
    Contributed by Cygnus Support.
 
@@ -41,14 +42,6 @@
 #undef	FRAME_CHAIN
 #define FRAME_CHAIN(thisframe) ((thisframe)->frame? read_memory_integer ((thisframe)->frame, 4): 0)
 
-/* If the chain pointer is zero (either because the saved value fetched
-   by FRAME_CHAIN was zero, or because the current FP was zero so FRAME_CHAIN
-   never fetched anything), we are at the top of the stack.  */
-/* We are guaranteed to have a zero frame pointer at bottom of stack, too. */
-
-#undef	FRAME_CHAIN_VALID
-#define FRAME_CHAIN_VALID(chain, thisframe) nonnull_frame_chain_valid (chain, thisframe)
-
 /* FIXME, Longjmp information stolen from Sun-3 config.  Dunno if right.  */
 /* Offsets (in target ints) into jmp_buf.  Not defined by Sun, but at least
    documented in a comment in <machine/setjmp.h>! */
diff --git a/gdb/config/mn10200/tm-mn10200.h b/gdb/config/mn10200/tm-mn10200.h
index b2d0385..f25578c 100644
--- a/gdb/config/mn10200/tm-mn10200.h
+++ b/gdb/config/mn10200/tm-mn10200.h
@@ -1,6 +1,6 @@
 /* Parameters for execution on a Matsushita mn10200 processor.
 
-   Copyright 1997, 1998, 1999, 2000, 2001, 2002 Free Software
+   Copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software
    Foundation, Inc.
 
    Contributed by Geoffrey Noer <noer@cygnus.com>
@@ -116,7 +116,6 @@ extern void mn10200_frame_find_saved_regs (struct frame_info *,
 
 extern CORE_ADDR mn10200_frame_chain (struct frame_info *);
 #define FRAME_CHAIN(fi) mn10200_frame_chain (fi)
-#define FRAME_CHAIN_VALID(FP, FI)	generic_file_frame_chain_valid (FP, FI)
 
 extern CORE_ADDR mn10200_find_callers_reg (struct frame_info *, int);
 extern CORE_ADDR mn10200_frame_saved_pc (struct frame_info *);
diff --git a/gdb/config/sparc/tm-sparclite.h b/gdb/config/sparc/tm-sparclite.h
index 8fafe5e..fb8b6d5 100644
--- a/gdb/config/sparc/tm-sparclite.h
+++ b/gdb/config/sparc/tm-sparclite.h
@@ -1,5 +1,5 @@
 /* Macro definitions for GDB for a Fujitsu SPARClite.
-   Copyright 1993, 1994, 1995, 1998, 1999, 2000
+   Copyright 1993, 1994, 1995, 1998, 1999, 2000, 2001, 2002, 2003
    Free Software Foundation, Inc.
 
    This file is part of GDB.
@@ -63,9 +63,6 @@ enum {
  * The following defines must go away for MULTI_ARCH.
  */
 
-#undef  FRAME_CHAIN_VALID
-#define FRAME_CHAIN_VALID(FP,FI) func_frame_chain_valid (FP, FI)
-
 #undef NUM_REGS
 #define NUM_REGS 80
 
diff --git a/gdb/cris-tdep.c b/gdb/cris-tdep.c
index 5301355..eb7256b 100644
--- a/gdb/cris-tdep.c
+++ b/gdb/cris-tdep.c
@@ -1,5 +1,5 @@
 /* Target dependent code for CRIS, for GDB, the GNU debugger.
-   Copyright 2001 Free Software Foundation, Inc.
+   Copyright 2001, 2002, 2003 Free Software Foundation, Inc.
    Contributed by Axis Communications AB.
    Written by Hendrik Ruijter, Stefan Andersson, and Orjan Friberg.
 
@@ -4312,7 +4312,6 @@ cris_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_frameless_function_invocation 
     (gdbarch, cris_frameless_function_invocation);
   set_gdbarch_frame_chain (gdbarch, cris_frame_chain);
-  set_gdbarch_frame_chain_valid (gdbarch, generic_file_frame_chain_valid);
 
   set_gdbarch_frame_saved_pc (gdbarch, cris_frame_saved_pc);
   set_gdbarch_saved_pc_after_call (gdbarch, cris_saved_pc_after_call);
diff --git a/gdb/d10v-tdep.c b/gdb/d10v-tdep.c
index 2012cea..46f3129 100644
--- a/gdb/d10v-tdep.c
+++ b/gdb/d10v-tdep.c
@@ -1,6 +1,6 @@
 /* Target-dependent code for Mitsubishi D10V, for GDB.
 
-   Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002 Free Software
+   Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software
    Foundation, Inc.
 
    This file is part of GDB.
@@ -112,14 +112,7 @@ static void do_d10v_pop_frame (struct frame_info *fi);
 static int
 d10v_frame_chain_valid (CORE_ADDR chain, struct frame_info *frame)
 {
-  if (chain != 0 && frame != NULL)
-    {
-      if (DEPRECATED_PC_IN_CALL_DUMMY (get_frame_pc (frame), frame->frame, frame->frame))
-	return 1;	/* Path back from a call dummy must be valid. */
-      return (get_frame_pc (frame) > IMEM_START
-	      && !inside_main_func (get_frame_pc (frame)));
-    }
-  else return 0;
+    return (get_frame_pc (frame) > IMEM_START);
 }
 
 static CORE_ADDR
diff --git a/gdb/frame.c b/gdb/frame.c
index 97d6193..361651e 100644
--- a/gdb/frame.c
+++ b/gdb/frame.c
@@ -1,7 +1,7 @@
 /* Cache and manage frames for GDB, the GNU debugger.
 
    Copyright 1986, 1987, 1989, 1991, 1994, 1995, 1996, 1998, 2000,
-   2001, 2002 Free Software Foundation, Inc.
+   2001, 2002, 2003 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -693,15 +693,7 @@ frame_saved_regs_id_unwind (struct frame_info *next_frame, void **cache)
          main.  */
       id.base = FRAME_CHAIN (next_frame);
 
-      /* FIXME: cagney/2002-06-08: There should be two tests here.
-         The first would check for a valid frame chain based on a user
-         selectable policy.  The default being ``stop at main'' (as
-         implemented by generic_func_frame_chain_valid()).  Other
-         policies would be available - stop at NULL, ....  The second
-         test, if provided by the target architecture, would check for
-         more exotic cases - most target architectures wouldn't bother
-         with this second case.  */
-      if (!FRAME_CHAIN_VALID (id.base, next_frame))
+      if (!frame_chain_valid (id.base, next_frame))
 	return null_frame_id;
     }
   if (id.base == 0)
@@ -1019,15 +1011,7 @@ get_prev_frame (struct frame_info *next_frame)
          main.  */
       address = FRAME_CHAIN (next_frame);
 
-      /* FIXME: cagney/2002-06-08: There should be two tests here.
-         The first would check for a valid frame chain based on a user
-         selectable policy.  The default being ``stop at main'' (as
-         implemented by generic_func_frame_chain_valid()).  Other
-         policies would be available - stop at NULL, ....  The second
-         test, if provided by the target architecture, would check for
-         more exotic cases - most target architectures wouldn't bother
-         with this second case.  */
-      if (!FRAME_CHAIN_VALID (address, next_frame))
+      if (!frame_chain_valid (address, next_frame))
 	return 0;
     }
   if (address == 0)
diff --git a/gdb/frame.h b/gdb/frame.h
index 283a968..21ef137 100644
--- a/gdb/frame.h
+++ b/gdb/frame.h
@@ -1,7 +1,7 @@
 /* Definitions for dealing with stack frames, for GDB, the GNU debugger.
 
    Copyright 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1996,
-   1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
+   1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -474,23 +474,14 @@ enum print_what
 
 extern void *frame_obstack_alloc (unsigned long size);
 
-/* 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.
+/* 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. */
+extern int frame_chain_valid (CORE_ADDR, struct frame_info *);
 
-extern int file_frame_chain_valid (CORE_ADDR, struct frame_info *);
-extern int func_frame_chain_valid (CORE_ADDR, struct frame_info *);
-extern int nonnull_frame_chain_valid (CORE_ADDR, struct frame_info *);
-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);
 
 
-
 #ifdef FRAME_FIND_SAVED_REGS
 /* XXX - deprecated */
 #define FRAME_INIT_SAVED_REGS(FI) deprecated_get_frame_saved_regs (FI, NULL)
diff --git a/gdb/frv-tdep.c b/gdb/frv-tdep.c
index b4c6629..0736312 100644
--- a/gdb/frv-tdep.c
+++ b/gdb/frv-tdep.c
@@ -1083,7 +1083,6 @@ frv_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_saved_pc_after_call (gdbarch, frv_saved_pc_after_call);
 
   set_gdbarch_frame_chain (gdbarch, frv_frame_chain);
-  set_gdbarch_frame_chain_valid (gdbarch, func_frame_chain_valid);
   set_gdbarch_frame_saved_pc (gdbarch, frv_frame_saved_pc);
 
   set_gdbarch_frame_init_saved_regs (gdbarch, frv_frame_init_saved_regs);
diff --git a/gdb/gdbarch.c b/gdb/gdbarch.c
index 3a44b33..e39ff5a 100644
--- a/gdb/gdbarch.c
+++ b/gdb/gdbarch.c
@@ -556,7 +556,6 @@ gdbarch_alloc (const struct gdbarch_info *info,
   current_gdbarch->remote_translate_xfer_address = generic_remote_translate_xfer_address;
   current_gdbarch->frame_args_skip = -1;
   current_gdbarch->frameless_function_invocation = generic_frameless_function_invocation_not;
-  current_gdbarch->frame_chain_valid = generic_func_frame_chain_valid;
   current_gdbarch->frame_args_address = get_frame_base;
   current_gdbarch->frame_locals_address = get_frame_base;
   current_gdbarch->extra_stack_alignment_needed = 1;
@@ -769,7 +768,7 @@ verify_gdbarch (struct gdbarch *gdbarch)
   if ((GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
       && (gdbarch->frame_chain == 0))
     fprintf_unfiltered (log, "\n\tframe_chain");
-  /* Skip verify of frame_chain_valid, invalid_p == 0 */
+  /* Skip verify of frame_chain_valid, has predicate */
   if ((GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL)
       && (gdbarch->frame_saved_pc == 0))
     fprintf_unfiltered (log, "\n\tframe_saved_pc");
@@ -1445,6 +1444,15 @@ gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file)
                         (long) current_gdbarch->frame_chain
                         /*FRAME_CHAIN ()*/);
 #endif
+#ifdef FRAME_CHAIN_VALID_P
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: %s # %s\n",
+                      "FRAME_CHAIN_VALID_P()",
+                      XSTRING (FRAME_CHAIN_VALID_P ()));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: FRAME_CHAIN_VALID_P() = %d\n",
+                      FRAME_CHAIN_VALID_P ());
+#endif
 #ifdef FRAME_CHAIN_VALID
   fprintf_unfiltered (file,
                       "gdbarch_dump: %s # %s\n",
@@ -4641,6 +4649,13 @@ set_gdbarch_frame_chain (struct gdbarch *gdbarch,
 }
 
 int
+gdbarch_frame_chain_valid_p (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  return gdbarch->frame_chain_valid != 0;
+}
+
+int
 gdbarch_frame_chain_valid (struct gdbarch *gdbarch, CORE_ADDR chain, struct frame_info *thisframe)
 {
   gdb_assert (gdbarch != NULL);
diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h
index edb8ade..d973fa3 100644
--- a/gdb/gdbarch.h
+++ b/gdb/gdbarch.h
@@ -1987,17 +1987,29 @@ extern void set_gdbarch_frame_chain (struct gdbarch *gdbarch, gdbarch_frame_chai
 #endif
 #endif
 
-/* 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. */
+#if defined (FRAME_CHAIN_VALID)
+/* Legacy for systems yet to multi-arch FRAME_CHAIN_VALID */
+#if !defined (FRAME_CHAIN_VALID_P)
+#define FRAME_CHAIN_VALID_P() (1)
+#endif
+#endif
+
+/* Default predicate for non- multi-arch targets. */
+#if (!GDB_MULTI_ARCH) && !defined (FRAME_CHAIN_VALID_P)
+#define FRAME_CHAIN_VALID_P() (0)
+#endif
+
+extern int gdbarch_frame_chain_valid_p (struct gdbarch *gdbarch);
+#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) && defined (FRAME_CHAIN_VALID_P)
+#error "Non multi-arch definition of FRAME_CHAIN_VALID"
+#endif
+#if (GDB_MULTI_ARCH > GDB_MULTI_ARCH_PARTIAL) || !defined (FRAME_CHAIN_VALID_P)
+#define FRAME_CHAIN_VALID_P() (gdbarch_frame_chain_valid_p (current_gdbarch))
+#endif
 
 /* Default (function) for non- multi-arch platforms. */
 #if (!GDB_MULTI_ARCH) && !defined (FRAME_CHAIN_VALID)
-#define FRAME_CHAIN_VALID(chain, thisframe) (generic_func_frame_chain_valid (chain, thisframe))
+#define FRAME_CHAIN_VALID(chain, thisframe) (internal_error (__FILE__, __LINE__, "FRAME_CHAIN_VALID"), 0)
 #endif
 
 typedef int (gdbarch_frame_chain_valid_ftype) (CORE_ADDR chain, struct frame_info *thisframe);
diff --git a/gdb/gdbarch.sh b/gdb/gdbarch.sh
index 73f62c5..5848ca8 100755
--- a/gdb/gdbarch.sh
+++ b/gdb/gdbarch.sh
@@ -569,14 +569,7 @@ f:2:REMOTE_TRANSLATE_XFER_ADDRESS:void:remote_translate_xfer_address:CORE_ADDR g
 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
-# 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:::generic_func_frame_chain_valid::0
+F:2:FRAME_CHAIN_VALID:int:frame_chain_valid:CORE_ADDR chain, struct frame_info *thisframe:chain, thisframe::0:0
 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:get_frame_base::0
 f:2:FRAME_LOCALS_ADDRESS:CORE_ADDR:frame_locals_address:struct frame_info *fi:fi::0:get_frame_base::0
diff --git a/gdb/h8300-tdep.c b/gdb/h8300-tdep.c
index 66ecd33..8ebf604 100644
--- a/gdb/h8300-tdep.c
+++ b/gdb/h8300-tdep.c
@@ -1114,7 +1114,6 @@ h8300_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_saved_pc_after_call (gdbarch, h8300_saved_pc_after_call);
   set_gdbarch_frame_saved_pc (gdbarch, h8300_frame_saved_pc);
   set_gdbarch_skip_prologue (gdbarch, h8300_skip_prologue);
-  set_gdbarch_frame_chain_valid (gdbarch, func_frame_chain_valid);
   set_gdbarch_frame_args_address (gdbarch, h8300_frame_args_address);
   set_gdbarch_frame_locals_address (gdbarch, h8300_frame_locals_address);
 
diff --git a/gdb/hppa-tdep.c b/gdb/hppa-tdep.c
index 0d57c0e..6364dbc 100644
--- a/gdb/hppa-tdep.c
+++ b/gdb/hppa-tdep.c
@@ -1381,9 +1381,6 @@ hppa_frame_chain_valid (CORE_ADDR chain, struct frame_info *thisframe)
   struct unwind_table_entry *u, *next_u = NULL;
   struct frame_info *next;
 
-  if (!chain)
-    return 0;
-
   u = find_unwind_entry (thisframe->pc);
 
   if (u == NULL)
diff --git a/gdb/i386-tdep.c b/gdb/i386-tdep.c
index 9c1000e..9b4cf02 100644
--- a/gdb/i386-tdep.c
+++ b/gdb/i386-tdep.c
@@ -1408,9 +1408,6 @@ i386_svr4_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   set_gdbarch_in_solib_call_trampoline (gdbarch, in_plt_section);
   set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);
 
-  /* FIXME: kettenis/20020511: Why do we override this function here?  */
-  set_gdbarch_frame_chain_valid (gdbarch, generic_func_frame_chain_valid);
-
   set_gdbarch_pc_in_sigtramp (gdbarch, i386_svr4_pc_in_sigtramp);
   tdep->sigcontext_addr = i386_svr4_sigcontext_addr;
   tdep->sc_pc_offset = 14 * 4;
@@ -1438,9 +1435,6 @@ i386_nw_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
-  /* FIXME: kettenis/20020511: Why do we override this function here?  */
-  set_gdbarch_frame_chain_valid (gdbarch, generic_func_frame_chain_valid);
-
   tdep->jb_pc_offset = 24;
 }
 
@@ -1622,7 +1616,6 @@ i386_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_frameless_function_invocation (gdbarch,
                                            i386_frameless_function_invocation);
   set_gdbarch_frame_chain (gdbarch, i386_frame_chain);
-  set_gdbarch_frame_chain_valid (gdbarch, generic_file_frame_chain_valid);
   set_gdbarch_frame_saved_pc (gdbarch, i386_frame_saved_pc);
   set_gdbarch_saved_pc_after_call (gdbarch, i386_saved_pc_after_call);
   set_gdbarch_frame_num_args (gdbarch, i386_frame_num_args);
diff --git a/gdb/ia64-tdep.c b/gdb/ia64-tdep.c
index d8f7db0..c5f447c 100644
--- a/gdb/ia64-tdep.c
+++ b/gdb/ia64-tdep.c
@@ -1,6 +1,6 @@
 /* Target-dependent code for the IA-64 for GDB, the GNU debugger.
 
-   Copyright 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
+   Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -2183,7 +2183,6 @@ ia64_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_saved_pc_after_call (gdbarch, ia64_saved_pc_after_call);
 
   set_gdbarch_frame_chain (gdbarch, ia64_frame_chain);
-  set_gdbarch_frame_chain_valid (gdbarch, generic_func_frame_chain_valid);
   set_gdbarch_frame_saved_pc (gdbarch, ia64_frame_saved_pc);
 
   set_gdbarch_frame_init_saved_regs (gdbarch, ia64_frame_init_saved_regs);
diff --git a/gdb/m68hc11-tdep.c b/gdb/m68hc11-tdep.c
index eda411c..323200d 100644
--- a/gdb/m68hc11-tdep.c
+++ b/gdb/m68hc11-tdep.c
@@ -1,5 +1,5 @@
 /* Target-dependent code for Motorola 68HC11 & 68HC12
-   Copyright 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
+   Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
    Contributed by Stephane Carrez, stcarrez@nerim.fr
 
 This file is part of GDB.
@@ -1331,14 +1331,12 @@ m68hc11_gdbarch_init (struct gdbarch_info info,
 
 
   set_gdbarch_frame_chain (gdbarch, m68hc11_frame_chain);
-  set_gdbarch_frame_chain_valid (gdbarch, generic_file_frame_chain_valid);
   set_gdbarch_frame_saved_pc (gdbarch, m68hc11_frame_saved_pc);
   set_gdbarch_frame_args_address (gdbarch, m68hc11_frame_args_address);
   set_gdbarch_frame_locals_address (gdbarch, m68hc11_frame_locals_address);
   set_gdbarch_saved_pc_after_call (gdbarch, m68hc11_saved_pc_after_call);
   set_gdbarch_frame_num_args (gdbarch, frame_num_args_unknown);
 
-  set_gdbarch_frame_chain_valid (gdbarch, func_frame_chain_valid);
   set_gdbarch_get_saved_register (gdbarch, deprecated_generic_get_saved_register);
 
   set_gdbarch_store_struct_return (gdbarch, m68hc11_store_struct_return);
diff --git a/gdb/m68k-tdep.c b/gdb/m68k-tdep.c
index 34cc0eb63..bcaae9d 100644
--- a/gdb/m68k-tdep.c
+++ b/gdb/m68k-tdep.c
@@ -1,5 +1,6 @@
 /* Target dependent code for the Motorola 68000 series.
-   Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001
+   Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001,
+   2002, 2003
    Free Software Foundation, Inc.
 
    This file is part of GDB.
@@ -1010,7 +1011,6 @@ m68k_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_deprecated_store_return_value (gdbarch, m68k_store_return_value);
 
   set_gdbarch_frame_chain (gdbarch, m68k_frame_chain);
-  set_gdbarch_frame_chain_valid (gdbarch, generic_func_frame_chain_valid);
   set_gdbarch_frame_saved_pc (gdbarch, m68k_frame_saved_pc);
   set_gdbarch_frame_init_saved_regs (gdbarch, m68k_frame_init_saved_regs);
   set_gdbarch_frameless_function_invocation (gdbarch,
diff --git a/gdb/mcore-tdep.c b/gdb/mcore-tdep.c
index 708cf4c..43cb248 100644
--- a/gdb/mcore-tdep.c
+++ b/gdb/mcore-tdep.c
@@ -1,5 +1,5 @@
 /* Target-machine dependent code for Motorola MCore for GDB, the GNU debugger
-   Copyright 1999, 2000, 2001 Free Software Foundation, Inc.
+   Copyright 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -1131,7 +1131,6 @@ mcore_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 
   set_gdbarch_init_extra_frame_info (gdbarch, mcore_init_extra_frame_info);
   set_gdbarch_frame_chain (gdbarch, mcore_frame_chain);
-  set_gdbarch_frame_chain_valid (gdbarch, generic_func_frame_chain_valid);
   set_gdbarch_frame_init_saved_regs (gdbarch, mcore_frame_init_saved_regs);
   set_gdbarch_frame_saved_pc (gdbarch, mcore_frame_saved_pc);
   set_gdbarch_deprecated_store_return_value (gdbarch, mcore_store_return_value);
diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c
index 2f24ec0..3dac672 100644
--- a/gdb/mips-tdep.c
+++ b/gdb/mips-tdep.c
@@ -5987,7 +5987,6 @@ mips_gdbarch_init (struct gdbarch_info info,
 				       mips_register_convert_to_raw);
 
   set_gdbarch_frame_chain (gdbarch, mips_frame_chain);
-  set_gdbarch_frame_chain_valid (gdbarch, func_frame_chain_valid);
   set_gdbarch_frameless_function_invocation (gdbarch, 
 					     generic_frameless_function_invocation_not);
   set_gdbarch_frame_saved_pc (gdbarch, mips_frame_saved_pc);
diff --git a/gdb/mn10300-tdep.c b/gdb/mn10300-tdep.c
index 582e965..a130e1c 100644
--- a/gdb/mn10300-tdep.c
+++ b/gdb/mn10300-tdep.c
@@ -1,6 +1,6 @@
 /* Target-dependent code for the Matsushita MN10300 for GDB, the GNU debugger.
 
-   Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002 Free Software
+   Copyright 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free Software
    Foundation, Inc.
 
    This file is part of GDB.
@@ -1162,9 +1162,7 @@ mn10300_gdbarch_init (struct gdbarch_info info,
   set_gdbarch_decr_pc_after_break (gdbarch, 0);
 
   /* Stack unwinding.  */
-  set_gdbarch_frame_chain_valid (gdbarch, generic_file_frame_chain_valid);
   set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
-  set_gdbarch_frame_chain_valid (gdbarch, generic_file_frame_chain_valid);
   set_gdbarch_saved_pc_after_call (gdbarch, mn10300_saved_pc_after_call);
   set_gdbarch_init_extra_frame_info (gdbarch, mn10300_init_extra_frame_info);
   set_gdbarch_deprecated_init_frame_pc (gdbarch, init_frame_pc_noop);
diff --git a/gdb/ns32k-tdep.c b/gdb/ns32k-tdep.c
index 4b3b937..f9fe294 100644
--- a/gdb/ns32k-tdep.c
+++ b/gdb/ns32k-tdep.c
@@ -573,7 +573,6 @@ ns32k_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
                                    generic_frameless_function_invocation_not);
   
   set_gdbarch_frame_chain (gdbarch, ns32k_frame_chain);
-  set_gdbarch_frame_chain_valid (gdbarch, func_frame_chain_valid);
   set_gdbarch_frame_saved_pc (gdbarch, ns32k_frame_saved_pc);
 
   set_gdbarch_frame_args_address (gdbarch, ns32k_frame_args_address);
diff --git a/gdb/ppcnbsd-tdep.c b/gdb/ppcnbsd-tdep.c
index ba863d0..21ab858 100644
--- a/gdb/ppcnbsd-tdep.c
+++ b/gdb/ppcnbsd-tdep.c
@@ -208,9 +208,6 @@ static void
 ppcnbsd_init_abi (struct gdbarch_info info,
                   struct gdbarch *gdbarch)
 {
-  /* Stop at main.  */
-  set_gdbarch_frame_chain_valid (gdbarch, generic_func_frame_chain_valid);
-
   set_gdbarch_pc_in_sigtramp (gdbarch, ppcnbsd_pc_in_sigtramp);
 
   set_solib_svr4_fetch_link_map_offsets (gdbarch,
diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c
index d0a3c03..a3a8d3d 100644
--- a/gdb/rs6000-tdep.c
+++ b/gdb/rs6000-tdep.c
@@ -2928,8 +2928,6 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
     set_gdbarch_use_struct_convention (gdbarch,
 				       generic_use_struct_convention);
 
-  set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
-
   set_gdbarch_frameless_function_invocation (gdbarch,
                                          rs6000_frameless_function_invocation);
   set_gdbarch_frame_chain (gdbarch, rs6000_frame_chain);
diff --git a/gdb/s390-tdep.c b/gdb/s390-tdep.c
index 961ff4f..efae4d4 100644
--- a/gdb/s390-tdep.c
+++ b/gdb/s390-tdep.c
@@ -1815,7 +1815,6 @@ s390_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_cannot_fetch_register (gdbarch, s390_cannot_fetch_register);
   set_gdbarch_cannot_store_register (gdbarch, s390_cannot_fetch_register);
   set_gdbarch_use_struct_convention (gdbarch, s390_use_struct_convention);
-  set_gdbarch_frame_chain_valid (gdbarch, func_frame_chain_valid);
   set_gdbarch_register_name (gdbarch, s390_register_name);
   set_gdbarch_stab_reg_to_regnum (gdbarch, s390_stab_reg_to_regnum);
   set_gdbarch_dwarf_reg_to_regnum (gdbarch, s390_stab_reg_to_regnum);
diff --git a/gdb/sh-tdep.c b/gdb/sh-tdep.c
index e0088d1..10abefc 100644
--- a/gdb/sh-tdep.c
+++ b/gdb/sh-tdep.c
@@ -4565,7 +4565,6 @@ sh_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 
   set_gdbarch_frame_args_skip (gdbarch, 0);
   set_gdbarch_frameless_function_invocation (gdbarch, frameless_look_for_prologue);
-  set_gdbarch_frame_chain_valid (gdbarch, generic_file_frame_chain_valid);
   set_gdbarch_frame_saved_pc (gdbarch, sh_frame_saved_pc);
   set_gdbarch_saved_pc_after_call (gdbarch, sh_saved_pc_after_call);
   set_gdbarch_frame_num_args (gdbarch, frame_num_args_unknown);
diff --git a/gdb/sparc-tdep.c b/gdb/sparc-tdep.c
index 2c7c5dd..1ae9c92 100644
--- a/gdb/sparc-tdep.c
+++ b/gdb/sparc-tdep.c
@@ -3332,7 +3332,6 @@ sparc_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
     {
     case bfd_mach_sparc:
       set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
-      set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
       set_gdbarch_num_regs (gdbarch, 72);
       set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4);
       set_gdbarch_register_name (gdbarch, sparc32_register_name);
@@ -3343,7 +3342,6 @@ sparc_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
       break;
     case bfd_mach_sparc_sparclet:
       set_gdbarch_deprecated_extract_return_value (gdbarch, sparclet_extract_return_value);
-      set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
       set_gdbarch_num_regs (gdbarch, 32 + 32 + 8 + 8 + 8);
       set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4 + 8*4 + 8*4);
       set_gdbarch_register_name (gdbarch, sparclet_register_name);
@@ -3354,7 +3352,6 @@ sparc_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
       break;
     case bfd_mach_sparc_sparclite:
       set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
-      set_gdbarch_frame_chain_valid (gdbarch, func_frame_chain_valid);
       set_gdbarch_num_regs (gdbarch, 80);
       set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4 + 8*4);
       set_gdbarch_register_name (gdbarch, sparclite_register_name);
@@ -3365,7 +3362,6 @@ sparc_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
       break;
     case bfd_mach_sparc_v8plus:
       set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
-      set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
       set_gdbarch_num_regs (gdbarch, 72);
       set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4);
       set_gdbarch_register_name (gdbarch, sparc32_register_name);
@@ -3376,7 +3372,6 @@ sparc_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
       break;
     case bfd_mach_sparc_v8plusa:
       set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
-      set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
       set_gdbarch_num_regs (gdbarch, 72);
       set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4);
       set_gdbarch_register_name (gdbarch, sparc32_register_name);
@@ -3387,7 +3382,6 @@ sparc_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
       break;
     case bfd_mach_sparc_sparclite_le:
       set_gdbarch_deprecated_extract_return_value (gdbarch, sparc32_extract_return_value);
-      set_gdbarch_frame_chain_valid (gdbarch, func_frame_chain_valid);
       set_gdbarch_num_regs (gdbarch, 80);
       set_gdbarch_register_bytes (gdbarch, 32*4 + 32*4 + 8*4 + 8*4);
       set_gdbarch_register_name (gdbarch, sparclite_register_name);
@@ -3398,7 +3392,6 @@ sparc_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
       break;
     case bfd_mach_sparc_v9:
       set_gdbarch_deprecated_extract_return_value (gdbarch, sparc64_extract_return_value);
-      set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
       set_gdbarch_num_regs (gdbarch, 125);
       set_gdbarch_register_bytes (gdbarch, 32*8 + 32*8 + 45*8);
       set_gdbarch_register_name (gdbarch, sparc64_register_name);
@@ -3409,7 +3402,6 @@ sparc_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
       break;
     case bfd_mach_sparc_v9a:
       set_gdbarch_deprecated_extract_return_value (gdbarch, sparc64_extract_return_value);
-      set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
       set_gdbarch_num_regs (gdbarch, 125);
       set_gdbarch_register_bytes (gdbarch, 32*8 + 32*8 + 45*8);
       set_gdbarch_register_name (gdbarch, sparc64_register_name);
diff --git a/gdb/v850-tdep.c b/gdb/v850-tdep.c
index 851ba07..1a28b74 100644
--- a/gdb/v850-tdep.c
+++ b/gdb/v850-tdep.c
@@ -1241,7 +1241,6 @@ v850_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   set_gdbarch_saved_pc_after_call (gdbarch, v850_saved_pc_after_call);
   set_gdbarch_frame_saved_pc (gdbarch, v850_frame_saved_pc);
   set_gdbarch_skip_prologue (gdbarch, v850_skip_prologue);
-  set_gdbarch_frame_chain_valid (gdbarch, generic_file_frame_chain_valid);
 
   /* 
    * Miscelany
diff --git a/gdb/vax-tdep.c b/gdb/vax-tdep.c
index 1d1b83a..b915b66 100644
--- a/gdb/vax-tdep.c
+++ b/gdb/vax-tdep.c
@@ -650,7 +650,6 @@ vax_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
 				   generic_frameless_function_invocation_not);
 
   set_gdbarch_frame_chain (gdbarch, vax_frame_chain);
-  set_gdbarch_frame_chain_valid (gdbarch, func_frame_chain_valid);
   set_gdbarch_frame_saved_pc (gdbarch, vax_frame_saved_pc);
 
   set_gdbarch_frame_args_address (gdbarch, vax_frame_args_address);
diff --git a/gdb/x86-64-tdep.c b/gdb/x86-64-tdep.c
index 97c3bd9..2cf005e 100644
--- a/gdb/x86-64-tdep.c
+++ b/gdb/x86-64-tdep.c
@@ -1,6 +1,6 @@
 /* Target-dependent code for the x86-64 for GDB, the GNU debugger.
 
-   Copyright 2001, 2002 Free Software Foundation, Inc.
+   Copyright 2001, 2002, 2003 Free Software Foundation, Inc.
    Contributed by Jiri Smid, SuSE Labs.
 
    This file is part of GDB.
@@ -1005,9 +1005,6 @@ x86_64_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   set_gdbarch_frame_chain (gdbarch, x86_64_linux_frame_chain);
   set_gdbarch_frameless_function_invocation (gdbarch,
 					 x86_64_frameless_function_invocation);
-  /* FIXME: kettenis/20021025: Shouldn't this be set to
-     generic_file_frame_chain_valid?  */
-  set_gdbarch_frame_chain_valid (gdbarch, file_frame_chain_valid);
   /* FIXME: kettenis/20021026: These two are GNU/Linux-specific and
      should be moved elsewhere.  */
   set_gdbarch_frame_saved_pc (gdbarch, x86_64_linux_frame_saved_pc);