Mon Aug 26 18:36:54 1996 Martin M. Hunt <hunt@pizza.cygnus.com>

	* d10v.mt: New file.
	* tm-d10v.h: New file.

1 files changed, 225 insertions, 0 deletions

diff --git a/gdb/config/d10v/tm-d10v.h b/gdb/config/d10v/tm-d10v.h
new file mode 100644
index 0000000..87658ed
--- /dev/null
+++ b/gdb/config/d10v/tm-d10v.h
@@ -0,0 +1,225 @@
+/* Target-specific definition for the Mitsubishi D10V
+   Copyright (C) 1996 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.  */
+
+/* Contributed by Martin Hunt, hunt@cygnus.com */
+
+
+#define GDB_TARGET_IS_D10V
+
+
+/* Define the bit, byte, and word ordering of the machine.  */
+
+#define TARGET_BYTE_ORDER	BIG_ENDIAN
+
+
+/* Offset from address of function to start of its code.
+   Zero on most machines.  */
+
+#define FUNCTION_START_OFFSET 0
+
+/* Advance PC across any function entry prologue instructions
+   to reach some "real" code.  */
+
+extern CORE_ADDR d10v_skip_prologue ();
+#define SKIP_PROLOGUE(ip) \
+    {(ip) = d10v_skip_prologue(ip);}
+
+
+/* Immediately after a function call, return the saved pc.
+   Can't always go through the frames for this because on some machines
+   the new frame is not set up until the new function executes
+   some instructions. 
+
+   The return address is the value saved in the PR register + 4  */
+
+#define SAVED_PC_AFTER_CALL(frame) \
+  (ADDR_BITS_REMOVE(read_register(PR_REGNUM)))
+
+/* Stack grows downward.  */
+
+#define INNER_THAN <
+
+    /* for a breakpoint, use "dbt || nop" */
+#define BREAKPOINT {0x2f, 0x90, 0x5e, 0x00} 
+
+/* If your kernel resets the pc after the trap happens you may need to
+   define this before including this file.  */
+#define DECR_PC_AFTER_BREAK 0
+
+#define REGISTER_NAMES \
+{ "r0", "r1", "r2", "r3", "r4", "r5",  "r6", "r7", \
+    "r8", "r9", "r10","r11","r12", "r13", "r14","sp",\
+    "psw","bpsw","pc","bpc", "cr4", "cr5", "cr6", "rpt_c",\
+    "rpt_s","rpt_e", "mod_s", "mod_e", "cr12", "cr13", "iba", "cr15",\
+    "a0", "a1"\
+    }
+
+#define NUM_REGS 34
+
+/* 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 R0_REGNUM	0
+#define LR_REGNUM 	13
+#define SP_REGNUM 	15
+#define FP_REGNUM	11
+#define PC_REGNUM 	18
+#define PR_REGNUM 	17
+#define PSW_REGNUM 	16
+#define A0_REGNUM 	32
+
+/* Say how much memory is needed to store a copy of the register set */
+#define REGISTER_BYTES    ((NUM_REGS-2)*2+16) 
+
+/* Index within `registers' of the first byte of the space for
+   register N.  */
+
+#define REGISTER_BYTE(N)  \
+( ((N) > A0_REGNUM) ? ( ((N)-A0_REGNUM)*8 + A0_REGNUM*2 ) : ((N) * 2) )
+
+/* Number of bytes of storage in the actual machine representation
+   for register N.  */
+
+#define REGISTER_RAW_SIZE(N) ( ((N) >= A0_REGNUM) ? 8 : 2 )
+
+/* Number of bytes of storage in the program's representation
+   for register N.  */   
+#define REGISTER_VIRTUAL_SIZE(N) ( ((N) >= A0_REGNUM) ? 8 : 2 )
+
+/* Largest value REGISTER_RAW_SIZE can have.  */
+
+#define MAX_REGISTER_RAW_SIZE 8
+
+/* Largest value REGISTER_VIRTUAL_SIZE can have.  */
+
+#define MAX_REGISTER_VIRTUAL_SIZE 8
+
+/* Return the GDB type object for the "standard" data type
+   of data in register N.  */
+
+#define REGISTER_VIRTUAL_TYPE(N) \
+( ((N) < A0_REGNUM ) ? builtin_type_short : builtin_type_long_long)
+
+
+/* Store the address of the place in which to copy the structure the
+   subroutine will return.  This is called from call_function. 
+
+   We store structs through a pointer passed in R2 */
+
+#define STORE_STRUCT_RETURN(ADDR, SP) \
+    { write_register (2, (ADDR));  }
+
+/* Extract from an array REGBUF containing the (raw) register state
+   a function return value of type TYPE, and copy that, in virtual format,
+   into VALBUF.  */
+
+#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
+  memcpy (VALBUF, (char *)(REGBUF), TYPE_LENGTH(TYPE))
+
+
+/* Write into appropriate registers a function return value
+   of type TYPE, given in virtual format.  
+
+   Things always get returned in R2/R3 */
+
+#define STORE_RETURN_VALUE(TYPE,VALBUF) \
+  write_register_bytes (REGISTER_BYTE(2), VALBUF, TYPE_LENGTH (TYPE))
+
+
+/* Extract from an array REGBUF containing the (raw) register state
+   the address in which a function should return its structure value,
+   as a CORE_ADDR (or an expression that can be used as one).  */
+
+#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) (*(CORE_ADDR *)(REGBUF))
+
+
+/* Define other aspects of the stack frame. 
+   we keep a copy of the worked out return pc lying around, since it
+   is a useful bit of info */
+
+#define EXTRA_FRAME_INFO \
+    CORE_ADDR return_pc; \
+    int leaf_function;   \
+    int f_offset;    
+
+#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \
+    d10v_init_extra_frame_info(fromleaf, fi) 
+
+/* A macro that tells us whether the function invocation represented
+   by FI does not have a frame on the stack associated with it.  If it
+   does not, FRAMELESS is set to 1, else 0.  */
+
+#define FRAMELESS_FUNCTION_INVOCATION(FI, FRAMELESS) \
+  (FRAMELESS) = frameless_look_for_prologue(FI)
+
+#define FRAME_CHAIN(FRAME)       d10v_frame_chain(FRAME)
+#define FRAME_SAVED_PC(FRAME)    ((FRAME)->return_pc)
+#define FRAME_ARGS_ADDRESS(fi)   (fi)->frame
+#define FRAME_LOCALS_ADDRESS(fi) (fi)->frame
+
+/* Set VAL to the number of args passed to frame described by FI.
+   Can set VAL to -1, meaning no way to tell.  */
+
+/* We can't tell how many args there are */
+
+#define FRAME_NUM_ARGS(val,fi) (val = -1)
+
+/* Return number of bytes at start of arglist that are not really args.  */
+
+#define FRAME_ARGS_SKIP 0
+
+/* Put here the code to store, into a struct frame_saved_regs,
+   the addresses of the saved registers of frame described by FRAME_INFO.
+   This includes special registers such as pc and fp saved in special
+   ways in the stack frame.  sp is even more special:
+   the address we return for it IS the sp for the next frame.  */
+
+#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs)	    \
+   d10v_frame_find_saved_regs(frame_info, &(frame_saved_regs))
+
+#define NAMES_HAVE_UNDERSCORE
+
+typedef unsigned short INSN_WORD;
+
+#define ADDR_BITS_REMOVE(addr) ((addr))
+
+#define CALL_DUMMY_LENGTH 10
+
+/* Discard from the stack the innermost frame,
+   restoring all saved registers.  */
+
+#define POP_FRAME d10v_pop_frame();
+
+#define REGISTER_SIZE 2
+
+#  ifdef CC_HAS_LONG_LONG
+#    define LONGEST long long
+#  else
+#    define LONGEST long
+#  endif 
+
+void d10v_write_register_pid PARAMS (( int regno, LONGEST val, int pid));
+CORE_ADDR d10v_read_register_pid PARAMS ((int regno, int pid));
+
+#define TARGET_READ_PC(pid)		d10v_read_register_pid (PC_REGNUM, pid)
+#define TARGET_WRITE_PC(val,pid)	d10v_write_register_pid (PC_REGNUM, val, pid)