[RFA] better alpha_register_virtual_type

[Richard Henderson <rth@twiddle.net>]

Ok?


r~


	* alpha-tdep.c (alpha_register_virtual_type): Use void_data_ptr
	for SP, GP; void_func_ptr for PC; non-language-specific types
	for all others.
	* alpha-tdep.h (ALPHA_GP_REGNUM): New.

Index: alpha-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/alpha-tdep.c,v
retrieving revision 1.95
diff -c -p -d -u -p -r1.95 alpha-tdep.c
--- alpha-tdep.c	2 Jun 2003 04:32:19 -0000	1.95
+++ alpha-tdep.c	2 Jun 2003 04:46:18 -0000
@@ -89,8 +89,17 @@ alpha_register_convertible (int regno)
 static struct type *
 alpha_register_virtual_type (int regno)
 {
-  return ((regno >= FP0_REGNUM && regno < (FP0_REGNUM+31))
-	  ? builtin_type_double : builtin_type_long);
+  if (regno == ALPHA_SP_REGNUM || regno == ALPHA_GP_REGNUM)
+    return builtin_type_void_data_ptr;
+  if (regno == ALPHA_PC_REGNUM)
+    return builtin_type_void_func_ptr;
+
+  /* Don't need to worry about little vs big endian until 
+     some jerk tries to port to alpha-unicosmk.  */
+  if (regno >= FP0_REGNUM && regno < FP0_REGNUM + 31)
+    return builtin_type_ieee_double_little;
+
+  return builtin_type_int64;
 }
 
 /* Is REGNUM a member of REGGROUP?  */
Index: alpha-tdep.h
===================================================================
RCS file: /cvs/src/src/gdb/alpha-tdep.h,v
retrieving revision 1.15
diff -c -p -d -u -p -r1.15 alpha-tdep.h
--- alpha-tdep.h	1 Jun 2003 21:46:37 -0000	1.15
+++ alpha-tdep.h	2 Jun 2003 04:46:19 -0000
@@ -43,9 +43,10 @@
 #define ALPHA_GCC_FP_REGNUM 15  /* Used by gcc as frame register */
 #define ALPHA_A0_REGNUM     16  /* Loc of first arg during a subr call */
 #define ALPHA_T9_REGNUM     23  /* Return address register for OSF/1 __div* */
+#define ALPHA_RA_REGNUM     26  /* Contains return address value */
 #define ALPHA_T12_REGNUM    27  /* Contains start addr of current proc */
+#define ALPHA_GP_REGNUM     29  /* Contains the global pointer */
 #define ALPHA_SP_REGNUM     30  /* Contains address of top of stack */
-#define ALPHA_RA_REGNUM     26  /* Contains return address value */
 #define ALPHA_ZERO_REGNUM   31  /* Read-only register, always 0 */
 #define ALPHA_FP0_REGNUM    32  /* Floating point register 0 */
 #define ALPHA_FPA0_REGNUM   48  /* First float arg during a subr call */