* Makefile.in (vax-tdep.o): Add $(arch_utils_h), $(inferior_h),

and vax-tdep.h.
* vax-tdep.h: New file.
* vax-tdep.c: Include inferior.h, arch-utils.h, and vax-tdep.h.
Make several routines static.
(vax_get_saved_register): New function.
(vax_gdbarch_init): New function.
(_initialize_vax_tdep): Register vax_gdbarch_init.
* config/vax/tm-vax.h: Set GDB_MULTI_ARCH to GDB_MULTI_ARCH_PARTIAL.
Remove macros now under the control of gdbarch.

5 files changed, 264 insertions, 170 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index a433c10..c99c648 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,16 @@
+2002-04-22  Jason Thorpe  <thorpej@wasabisystems.com>
+
+	* Makefile.in (vax-tdep.o): Add $(arch_utils_h), $(inferior_h),
+	and vax-tdep.h.
+	* vax-tdep.h: New file.
+	* vax-tdep.c: Include inferior.h, arch-utils.h, and vax-tdep.h.
+	Make several routines static.
+	(vax_get_saved_register): New function.
+	(vax_gdbarch_init): New function.
+	(_initialize_vax_tdep): Register vax_gdbarch_init.
+	* config/vax/tm-vax.h: Set GDB_MULTI_ARCH to GDB_MULTI_ARCH_PARTIAL.
+	Remove macros now under the control of gdbarch.
+
 2002-04-22  Michael Snyder  <msnyder@redhat.com>
 
 	* arm-tdep.c: Some whitespace and coding standards tweaks.
diff --git a/gdb/Makefile.in b/gdb/Makefile.in
index 6098503..6c7a4f0 100644
--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -2156,7 +2156,8 @@ values.o: values.c $(defs_h) $(expression_h) $(frame_h) $(gdbcmd_h) \
 	$(gdbcore_h) $(gdbtypes_h) $(symtab_h) $(target_h) $(value_h) \
 	$(gdb_string_h) scm-lang.h $(doublest_h)
 
-vax-tdep.o: vax-tdep.c $(OP_INCLUDE)/vax.h $(defs_h) $(symtab_h)
+vax-tdep.o: vax-tdep.c $(OP_INCLUDE)/vax.h $(defs_h) $(symtab_h) \
+	$(arch_utils_h) $(inferior_h) vax-tdep.h
 
 x86-64-linux-tdep.o : x86-64-linux-tdep.c $(defs_h) $(inferior_h) \
 	$(gdbcore_h) $(regcache_h) x86-64-tdep.h i386-tdep.h $(dwarf2cfi_h)
diff --git a/gdb/config/vax/tm-vax.h b/gdb/config/vax/tm-vax.h
index ee6ec00..204d155 100644
--- a/gdb/config/vax/tm-vax.h
+++ b/gdb/config/vax/tm-vax.h
@@ -19,16 +19,7 @@
    Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-/* Offset from address of function to start of its code.
-   Zero on most machines.  */
-
-#define FUNCTION_START_OFFSET 2
-
-extern CORE_ADDR vax_skip_prologue (CORE_ADDR);
-#define SKIP_PROLOGUE(pc) (vax_skip_prologue (pc))
-
-#define SAVED_PC_AFTER_CALL(frame) vax_saved_pc_after_call ((frame))
-extern CORE_ADDR vax_saved_pc_after_call (struct frame_info *);
+#define GDB_MULTI_ARCH GDB_MULTI_ARCH_PARTIAL
 
 #define TARGET_UPAGES 14
 #define TARGET_NBPG 512
@@ -40,151 +31,18 @@ extern CORE_ADDR vax_saved_pc_after_call (struct frame_info *);
 #define SIGTRAMP_START(pc)	STACK_END_ADDR
 #define SIGTRAMP_END(pc)	0x80000000
 
-/* Stack grows downward.  */
-
-#define INNER_THAN(lhs,rhs) core_addr_lessthan ((lhs), (rhs))
-
 /* Sequence of bytes for breakpoint instruction.  */
-
 #define BREAKPOINT {3}
 
-/* Amount PC must be decremented by after a breakpoint.
-   This is often the number of bytes in BREAKPOINT
-   but not always.  */
-
-#define DECR_PC_AFTER_BREAK 0
-
-/* Say how long (ordinary) registers are.  This is a piece of bogosity
-   used in push_word and a few other places; REGISTER_RAW_SIZE is the
-   real way to know how big a register is.  */
-
-#define REGISTER_SIZE 4
-
-/* Number of machine registers */
-
-#define NUM_REGS 17
-
-/* Return the name of the register specified by N.  */
-#define REGISTER_NAME(N) vax_register_name ((N))
-extern char *vax_register_name (int);
-
-/* Register numbers of various important registers.
-   Note that some of these values are "real" register numbers,
-   and correspond to the general registers of the machine,
-   and some are "phony" register numbers which are too large
-   to be actual register numbers as far as the user is concerned
-   but do serve to get the desired values when passed to read_register.  */
-
-#define AP_REGNUM 12
-#define FP_REGNUM 13		/* Contains address of executing stack frame */
-#define SP_REGNUM 14		/* Contains address of top of stack */
-#define PC_REGNUM 15		/* Contains program counter */
-#define PS_REGNUM 16		/* Contains processor status */
-
-/* Total amount of space needed to store our copies of the machine's
-   register state, the array `registers'.  */
-#define REGISTER_BYTES (17*4)
-
-/* Index within `registers' of the first byte of the space for
-   register N.  */
-#define REGISTER_BYTE(N) vax_register_byte ((N))
-extern int vax_register_byte (int);
-
-/* Number of bytes of storage in the actual machine representation
-   for register N.  On the vax, all regs are 4 bytes.  */
-#define REGISTER_RAW_SIZE(N) vax_register_raw_size ((N))
-extern int vax_register_raw_size (int);
-
-/* Number of bytes of storage in the program's representation
-   for register N.  On the vax, all regs are 4 bytes.  */
-#define REGISTER_VIRTUAL_SIZE(N) vax_register_virtual_size ((N))
-extern int vax_register_virtual_size (int);
-
-/* Largest value REGISTER_RAW_SIZE can have.  */
-
-#define MAX_REGISTER_RAW_SIZE 4
-
-/* Largest value REGISTER_VIRTUAL_SIZE can have.  */
-
-#define MAX_REGISTER_VIRTUAL_SIZE 4
-
-/* Return the GDB type object for the "standard" data type
-   of data in register N.  */
-#define REGISTER_VIRTUAL_TYPE(N) vax_register_virtual_type ((N))
-extern struct type *vax_register_virtual_type (int);
-
-#define STORE_STRUCT_RETURN(ADDR, SP) vax_store_struct_return ((ADDR), (SP))
-extern void vax_store_struct_return (CORE_ADDR, CORE_ADDR);
-
-#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
-  vax_extract_return_value ((TYPE), (REGBUF), (VALBUF))
-extern void vax_extract_return_value (struct type *, char *, char *);
-
-#define STORE_RETURN_VALUE(TYPE,VALBUF) \
-  vax_store_return_value ((TYPE), (VALBUF))
-extern void vax_store_return_value (struct type *, char *);
-
-#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
-  vax_extract_struct_value_address ((REGBUF))
-extern CORE_ADDR vax_extract_struct_value_address (char *);
-
-
-#define FRAME_CHAIN(FI) vax_frame_chain ((FI))
-extern CORE_ADDR vax_frame_chain (struct frame_info *);
-
-#define FRAMELESS_FUNCTION_INVOCATION(FI) \
-  generic_frameless_function_invocation_not ((FI))
+#define AP_REGNUM 12	/* XXXJRT */
 
 /* Offset to saved PC in sigcontext, from <sys/signal.h>.  */
 /* XXXJRT should go away */
 #define SIGCONTEXT_PC_OFFSET 12
 
-#define FRAME_SAVED_PC(FRAME) vax_frame_saved_pc ((FRAME))
-extern CORE_ADDR vax_frame_saved_pc (struct frame_info *);
-
 /* XXXJRT not yet under gdbarch control */
-#define FRAME_ARGS_ADDRESS_CORRECT(fi) vax_frame_args_address ((fi))
-extern CORE_ADDR vax_frame_args_address (struct frame_info *);
-
-#define FRAME_ARGS_ADDRESS(fi) vax_frame_args_address ((fi))
-extern CORE_ADDR vax_frame_args_address (struct frame_info *);
-
-#define FRAME_LOCALS_ADDRESS(fi) vax_frame_locals_address ((fi))
-extern CORE_ADDR vax_frame_locals_address (struct frame_info *);
-
-extern int vax_frame_num_args (struct frame_info *fi);
-#define FRAME_NUM_ARGS(fi) (vax_frame_num_args ((fi)))
-
-/* Return number of bytes at start of arglist that are not really args.  */
-
-#define FRAME_ARGS_SKIP 4
-
-#define FRAME_INIT_SAVED_REGS(fi) vax_frame_init_saved_regs ((fi))
-extern void vax_frame_init_saved_regs (struct frame_info *);
-
-#define PUSH_DUMMY_FRAME vax_push_dummy_frame()
-extern void vax_push_dummy_frame (void);
-
-#define POP_FRAME vax_pop_frame()
-extern void vax_pop_frame (void);
-
-#define CALL_DUMMY_WORDS vax_call_dummy_words
-extern LONGEST vax_call_dummy_words[];
-
-#define SIZEOF_CALL_DUMMY_WORDS sizeof_vax_call_dummy_words
-extern int sizeof_vax_call_dummy_words;
-
-struct value;
-#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
-  vax_fix_call_dummy ((dummyname), (pc), (fun), (nargs), (args), (type), \
-		      (gcc_p))
-extern void vax_fix_call_dummy (char *, CORE_ADDR, CORE_ADDR, int,
-                                struct value **, struct type *, int);
-
-#define CALL_DUMMY_START_OFFSET 0 /* Start execution at beginning of dummy */
-
-#define CALL_DUMMY_BREAKPOINT_OFFSET 7
+#define FRAME_ARGS_ADDRESS_CORRECT(fi) vax_frame_args_address_correct ((fi))
+extern CORE_ADDR vax_frame_args_address_correct (struct frame_info *);
 
 /* If vax pcc says CHAR or SHORT, it provides the correct address.  */
-
 #define BELIEVE_PCC_PROMOTION 1
diff --git a/gdb/vax-tdep.c b/gdb/vax-tdep.c
index 8fc2997..0478227 100644
--- a/gdb/vax-tdep.c
+++ b/gdb/vax-tdep.c
@@ -23,9 +23,39 @@
 #include "symtab.h"
 #include "opcode/vax.h"
 #include "gdbcore.h"
+#include "inferior.h"
 #include "regcache.h"
 #include "frame.h"
 #include "value.h"
+#include "arch-utils.h"
+
+#include "vax-tdep.h"
+
+static gdbarch_register_name_ftype vax_register_name;
+static gdbarch_register_byte_ftype vax_register_byte;
+static gdbarch_register_raw_size_ftype vax_register_raw_size;
+static gdbarch_register_virtual_size_ftype vax_register_virtual_size;
+static gdbarch_register_virtual_type_ftype vax_register_virtual_type;
+
+static gdbarch_skip_prologue_ftype vax_skip_prologue;
+static gdbarch_saved_pc_after_call_ftype vax_saved_pc_after_call;
+static gdbarch_frame_num_args_ftype vax_frame_num_args;
+static gdbarch_frame_chain_ftype vax_frame_chain;
+static gdbarch_frame_saved_pc_ftype vax_frame_saved_pc;
+static gdbarch_frame_args_address_ftype vax_frame_args_address;
+static gdbarch_frame_locals_address_ftype vax_frame_locals_address;
+static gdbarch_frame_init_saved_regs_ftype vax_frame_init_saved_regs;
+static gdbarch_get_saved_register_ftype vax_get_saved_register;
+
+static gdbarch_store_struct_return_ftype vax_store_struct_return;
+static gdbarch_extract_return_value_ftype vax_extract_return_value;
+static gdbarch_store_return_value_ftype vax_store_return_value;
+static gdbarch_extract_struct_value_address_ftype
+    vax_extract_struct_value_address;
+
+static gdbarch_push_dummy_frame_ftype vax_push_dummy_frame;
+static gdbarch_pop_frame_ftype vax_pop_frame;
+static gdbarch_fix_call_dummy_ftype vax_fix_call_dummy;
 
 /* Return 1 if P points to an invalid floating point value.
    LEN is the length in bytes -- not relevant on the Vax.  */
@@ -53,7 +83,7 @@
 
 static unsigned char *print_insn_arg ();
 
-char *
+static char *
 vax_register_name (int regno)
 {
   static char *register_names[] =
@@ -70,31 +100,76 @@ vax_register_name (int regno)
   return (register_names[regno]);
 }
 
-int
+static int
 vax_register_byte (int regno)
 {
   return (regno * 4);
 }
 
-int
+static int
 vax_register_raw_size (int regno)
 {
   return (4);
 }
 
-int
+static int
 vax_register_virtual_size (int regno)
 {
   return (4);
 }
 
-struct type *
+static struct type *
 vax_register_virtual_type (int regno)
 {
   return (builtin_type_int);
 }
 
-void
+static void
+vax_get_saved_register (char *raw_buffer, int *optimized, CORE_ADDR *addrp,
+                        struct frame_info *frame, int regnum,
+                        enum lval_type *lval)
+{
+  CORE_ADDR addr;
+
+  if (!target_has_registers)
+    error ("No registers.");
+
+  /* Normal systems don't optimize out things with register numbers.  */
+  if (optimized != NULL)
+    *optimized = 0;
+  addr = find_saved_register (frame, regnum);
+  if (addr != 0)
+    {
+      if (lval != NULL)
+	*lval = lval_memory;
+      if (regnum == SP_REGNUM)
+	{
+	  if (raw_buffer != NULL)
+	    {
+	      /* Put it back in target format.  */
+	      store_address (raw_buffer, REGISTER_RAW_SIZE (regnum),
+			     (LONGEST) addr);
+	    }
+	  if (addrp != NULL)
+	    *addrp = 0;
+	  return;
+	}
+      if (raw_buffer != NULL)
+	target_read_memory (addr, raw_buffer, REGISTER_RAW_SIZE (regnum));
+    }
+  else
+    {
+      if (lval != NULL)
+	*lval = lval_register;
+      addr = REGISTER_BYTE (regnum);
+      if (raw_buffer != NULL)
+	read_register_gen (regnum, raw_buffer);
+    }
+  if (addrp != NULL)
+    *addrp = addr;
+}
+
+static void
 vax_frame_init_saved_regs (struct frame_info *frame)
 {
   int regnum, regmask;
@@ -128,7 +203,7 @@ vax_frame_init_saved_regs (struct frame_info *frame)
   frame->saved_regs[PS_REGNUM] = frame->frame + 4;
 }
 
-CORE_ADDR
+static CORE_ADDR
 vax_frame_saved_pc (struct frame_info *frame)
 {
   if (frame->signal_handler_caller)
@@ -155,7 +230,7 @@ vax_frame_args_address_correct (struct frame_info *frame)
   return (0);
 }
 
-CORE_ADDR
+static CORE_ADDR
 vax_frame_args_address (struct frame_info *frame)
 {
   /* In most of GDB, getting the args address is too important to
@@ -167,19 +242,19 @@ vax_frame_args_address (struct frame_info *frame)
   return (read_register (AP_REGNUM));
 }
 
-CORE_ADDR
+static CORE_ADDR
 vax_frame_locals_address (struct frame_info *frame)
 {
   return (frame->frame);
 }
 
-int
+static int
 vax_frame_num_args (struct frame_info *fi)
 {
   return (0xff & read_memory_integer (FRAME_ARGS_ADDRESS (fi), 1));
 }
 
-CORE_ADDR
+static CORE_ADDR
 vax_frame_chain (struct frame_info *frame)
 {
   /* In the case of the VAX, the frame's nominal address is the FP value,
@@ -190,7 +265,7 @@ vax_frame_chain (struct frame_info *frame)
   return (read_memory_integer (frame->frame + 12, 4));
 }
 
-void
+static void
 vax_push_dummy_frame (void)
 {
   CORE_ADDR sp = read_register (SP_REGNUM);
@@ -209,7 +284,7 @@ vax_push_dummy_frame (void)
   write_register (AP_REGNUM, sp + (17 * 4));
 }
 
-void
+static void
 vax_pop_frame (void)
 {
   CORE_ADDR fp = read_register (FP_REGNUM);
@@ -243,10 +318,10 @@ vax_pop_frame (void)
 
    It is 8 bytes long.  The address and argc are patched by
    vax_fix_call_dummy().  */
-LONGEST vax_call_dummy_words[] = { 0x329f69fb, 0x03323232 };
-int sizeof_vax_call_dummy_words = sizeof(vax_call_dummy_words);
+static LONGEST vax_call_dummy_words[] = { 0x329f69fb, 0x03323232 };
+static int sizeof_vax_call_dummy_words = sizeof(vax_call_dummy_words);
 
-void
+static void
 vax_fix_call_dummy (char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs,
                     struct value **args, struct type *type, int gcc_p)
 {
@@ -254,25 +329,25 @@ vax_fix_call_dummy (char *dummy, CORE_ADDR pc, CORE_ADDR fun, int nargs,
   store_unsigned_integer (dummy + 3, 4, fun);
 }
 
-void
+static void
 vax_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
 {
   write_register (1, addr);
 }
 
-void
+static void
 vax_extract_return_value (struct type *valtype, char *regbuf, char *valbuf)
 {
   memcpy (valbuf, regbuf + REGISTER_BYTE (0), TYPE_LENGTH (valtype));
 }
 
-void
+static void
 vax_store_return_value (struct type *valtype, char *valbuf)
 {
   write_register_bytes (0, valbuf, TYPE_LENGTH (valtype));
 }
 
-CORE_ADDR
+static CORE_ADDR
 vax_extract_struct_value_address (char *regbuf)
 {
   return (extract_address (regbuf + REGISTER_BYTE (0), REGISTER_RAW_SIZE (0)));
@@ -281,7 +356,7 @@ vax_extract_struct_value_address (char *regbuf)
 /* Advance PC across any function entry prologue instructions
    to reach some "real" code.  */
 
-CORE_ADDR
+static CORE_ADDR
 vax_skip_prologue (CORE_ADDR pc)
 {
   register int op = (unsigned char) read_memory_integer (pc, 1);
@@ -307,7 +382,7 @@ vax_skip_prologue (CORE_ADDR pc)
   return pc;
 }
 
-CORE_ADDR
+static CORE_ADDR
 vax_saved_pc_after_call (struct frame_info *frame)
 {
   return (FRAME_SAVED_PC(frame));
@@ -363,7 +438,7 @@ vax_print_insn (CORE_ADDR memaddr, disassemble_info *info)
     }
   return p - buffer;
 }
-
+
 static unsigned char *
 print_insn_arg (char *d, register char *p, CORE_ADDR addr,
 		disassemble_info *info)
@@ -534,9 +609,101 @@ print_insn_arg (char *d, register char *p, CORE_ADDR addr,
 
   return (unsigned char *) p;
 }
+
+/* Initialize the current architecture based on INFO.  If possible, re-use an
+   architecture from ARCHES, which is a list of architectures already created
+   during this debugging session.
+
+   Called e.g. at program startup, when reading a core file, and when reading
+   a binary file.  */
+
+static struct gdbarch *
+vax_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
+{
+  struct gdbarch *gdbarch;
+
+  /* Right now there is only one VAX architecture variant.  */
+  if (arches != NULL)
+    return (arches->gdbarch);
+
+  gdbarch = gdbarch_alloc (&info, NULL);
+
+  /* Register info */
+  set_gdbarch_num_regs (gdbarch, VAX_NUM_REGS);
+  set_gdbarch_sp_regnum (gdbarch, VAX_SP_REGNUM);
+  set_gdbarch_fp_regnum (gdbarch, VAX_FP_REGNUM);
+  set_gdbarch_pc_regnum (gdbarch, VAX_PC_REGNUM);
+  set_gdbarch_ps_regnum (gdbarch, VAX_PS_REGNUM);
+
+  set_gdbarch_register_name (gdbarch, vax_register_name);
+  set_gdbarch_register_size (gdbarch, VAX_REGISTER_SIZE);
+  set_gdbarch_register_bytes (gdbarch, VAX_REGISTER_BYTES);
+  set_gdbarch_register_byte (gdbarch, vax_register_byte);
+  set_gdbarch_register_raw_size (gdbarch, vax_register_raw_size);
+  set_gdbarch_max_register_raw_size (gdbarch, VAX_MAX_REGISTER_RAW_SIZE);
+  set_gdbarch_register_virtual_size (gdbarch, vax_register_virtual_size);
+  set_gdbarch_max_register_virtual_size (gdbarch,
+                                         VAX_MAX_REGISTER_VIRTUAL_SIZE);
+  set_gdbarch_register_virtual_type (gdbarch, vax_register_virtual_type);
+
+  /* Frame and stack info */
+  set_gdbarch_skip_prologue (gdbarch, vax_skip_prologue);
+  set_gdbarch_saved_pc_after_call (gdbarch, vax_saved_pc_after_call);
+
+  set_gdbarch_frame_num_args (gdbarch, vax_frame_num_args);
+  set_gdbarch_frameless_function_invocation (gdbarch,
+				   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);
+  set_gdbarch_frame_locals_address (gdbarch, vax_frame_locals_address);
+
+  set_gdbarch_frame_init_saved_regs (gdbarch, vax_frame_init_saved_regs);
+
+  set_gdbarch_frame_args_skip (gdbarch, 4);
+
+  set_gdbarch_get_saved_register (gdbarch, vax_get_saved_register);
+
+  set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
+
+  /* Return value info */
+  set_gdbarch_store_struct_return (gdbarch, vax_store_struct_return);
+  set_gdbarch_extract_return_value (gdbarch, vax_extract_return_value);
+  set_gdbarch_store_return_value (gdbarch, vax_store_return_value);
+  set_gdbarch_extract_struct_value_address (gdbarch,
+					    vax_extract_struct_value_address);
+
+  /* Call dummy info */
+  set_gdbarch_push_dummy_frame (gdbarch, vax_push_dummy_frame);
+  set_gdbarch_pop_frame (gdbarch, vax_pop_frame);
+  set_gdbarch_call_dummy_location (gdbarch, ON_STACK);
+  set_gdbarch_call_dummy_p (gdbarch, 1);
+  set_gdbarch_call_dummy_words (gdbarch, vax_call_dummy_words);
+  set_gdbarch_sizeof_call_dummy_words (gdbarch, sizeof_vax_call_dummy_words);
+  set_gdbarch_fix_call_dummy (gdbarch, vax_fix_call_dummy);
+  set_gdbarch_call_dummy_start_offset (gdbarch, 0);
+  set_gdbarch_call_dummy_breakpoint_offset_p (gdbarch, 1);
+  set_gdbarch_call_dummy_breakpoint_offset (gdbarch, 7);
+  set_gdbarch_use_generic_dummy_frames (gdbarch, 0);
+  set_gdbarch_pc_in_call_dummy (gdbarch, pc_in_call_dummy_on_stack);
+  set_gdbarch_call_dummy_stack_adjust_p (gdbarch, 0);
+
+  /* Breakpoint info */
+  set_gdbarch_decr_pc_after_break (gdbarch, 0);
+
+  /* Misc info */
+  set_gdbarch_function_start_offset (gdbarch, 2);
+
+  return (gdbarch);
+}
 
 void
 _initialize_vax_tdep (void)
 {
+  gdbarch_register (bfd_arch_vax, vax_gdbarch_init, NULL);
+
   tm_print_insn = vax_print_insn;
 }
diff --git a/gdb/vax-tdep.h b/gdb/vax-tdep.h
new file mode 100644
index 0000000..95324bc
--- /dev/null
+++ b/gdb/vax-tdep.h
@@ -0,0 +1,55 @@
+/* Common target dependent code for GDB on VAX systems.
+   Copyright 2002 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef VAX_TDEP_H
+#define VAX_TDEP_H
+
+/* Say how long (ordinary) registers are.  This is a piece of bogosity
+   used in push_word and a few other places;  REGISTER_RAW_SIZE is the
+   real way to know how big a register is.  */
+#define VAX_REGISTER_SIZE 4
+
+/* Number of machine registers.  */
+#define VAX_NUM_REGS 17
+
+/* Total amount of space needed to store our copies of the machine's
+   register state.  */
+#define VAX_REGISTER_BYTES (VAX_NUM_REGS * 4)
+
+/* Largest value REGISTER_RAW_SIZE can have.  */
+#define VAX_MAX_REGISTER_RAW_SIZE 4
+
+/* Largest value REGISTER_VIRTUAL_SIZE can have.  */
+#define VAX_MAX_REGISTER_VIRTUAL_SIZE 4
+
+/* Register numbers of various important registers.
+   Note that most of these values are "real" register numbers,
+   and correspond to the general registers of the machine,
+   and are "phony" register numbers which is too large
+   to be an actual register number as far as the user is concerned
+   but serves to get the desired value when passed to read_register.  */
+
+#define VAX_AP_REGNUM     12  /* argument pointer */
+#define VAX_FP_REGNUM     13  /* Contains address of executing stack frame */
+#define VAX_SP_REGNUM     14  /* Contains address of top of stack */
+#define VAX_PC_REGNUM     15  /* Contains program counter */
+#define VAX_PS_REGNUM     16  /* Contains processor status */
+
+#endif /* VAX_TDEP_H */