2003-06-29  Andrew Cagney  <cagney@redhat.com>

	* gdbarch.sh (REGISTER_RAW_SIZE, REGISTER_VIRTUAL_SIZE): Add
	predicate.
	* gdbarch.h, gdbarch.c: Re-generate.
	* regcache.c (init_regcache_descr): Use legacy code when either
	REGISTER_BYTE or REGISTER_RAW_SIZE is set.

Index: gdbarch.sh
===================================================================
RCS file: /cvs/src/src/gdb/gdbarch.sh,v
retrieving revision 1.253
diff -u -r1.253 gdbarch.sh
--- gdbarch.sh	26 Jun 2003 17:18:42 -0000	1.253
+++ gdbarch.sh	29 Jun 2003 20:27:51 -0000
@@ -486,12 +486,12 @@
 # sizes agree with the value computed from REGISTER_TYPE,
 # DEPRECATED_REGISTER_RAW_SIZE can be deleted.  See: maint print
 # registers.
-f:2:REGISTER_RAW_SIZE:int:deprecated_register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
+F:2:REGISTER_RAW_SIZE:int:deprecated_register_raw_size:int reg_nr:reg_nr::generic_register_size:generic_register_size
 # If all registers have identical raw and virtual sizes and those
 # sizes agree with the value computed from REGISTER_TYPE,
 # DEPRECATED_REGISTER_VIRTUAL_SIZE can be deleted.  See: maint print
 # registers.
-f:2:REGISTER_VIRTUAL_SIZE:int:deprecated_register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size::0
+F:2:REGISTER_VIRTUAL_SIZE:int:deprecated_register_virtual_size:int reg_nr:reg_nr::generic_register_size:generic_register_size
 # DEPRECATED_MAX_REGISTER_RAW_SIZE can be deleted.  It has been
 # replaced by the constant MAX_REGISTER_SIZE.
 V:2:DEPRECATED_MAX_REGISTER_RAW_SIZE:int:deprecated_max_register_raw_size
Index: regcache.c
===================================================================
RCS file: /cvs/src/src/gdb/regcache.c,v
retrieving revision 1.88
diff -u -r1.88 regcache.c
--- regcache.c	16 Jun 2003 13:19:36 -0000	1.88
+++ regcache.c	29 Jun 2003 20:28:07 -0000
@@ -178,16 +178,17 @@
 
   /* If an old style architecture, fill in the remainder of the
      register cache descriptor using the register macros.  */
-  if (!gdbarch_pseudo_register_read_p (gdbarch)
-      && !gdbarch_pseudo_register_write_p (gdbarch)
-      && !gdbarch_register_type_p (gdbarch))
+  /* NOTE: cagney/2003-06-29: If either of REGISTER_BYTE or
+     REGISTER_RAW_SIZE are still present, things are most likely
+     totally screwed.  Ex: an architecture with raw register sizes
+     smaller than what REGISTER_BYTE indicates; non monotonic
+     REGISTER_BYTE values.  For GDB 6 check for these nasty methods
+     and fall back to legacy code when present.  Sigh!  */
+  if ((!gdbarch_pseudo_register_read_p (gdbarch)
+       && !gdbarch_pseudo_register_write_p (gdbarch)
+       && !gdbarch_register_type_p (gdbarch))
+      || REGISTER_BYTE_P () || REGISTER_RAW_SIZE_P ())
     {
-      /* NOTE: cagney/2003-05-02: Don't add a test for REGISTER_BYTE_P
-	 to the above.  Doing that would cause all the existing
-	 architectures to revert back to the legacy regcache
-	 mechanisms, and that is not a good thing.  Instead just,
-	 later, check that the register cache's layout is consistent
-	 with REGISTER_BYTE.  */
       descr->legacy_p = 1;
       init_legacy_regcache_descr (gdbarch, descr);
       return descr;