* 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.

1 files changed, 3 insertions, 19 deletions

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)