URL
https://opencores.org/ocsvn/or1k/or1k/trunk
Subversion Repositories or1k
Compare Revisions
- This comparison shows the changes necessary to convert path
/or1k/tags/start/gdb-5.0/gdb/config/h8300
- from Rev 579 to Rev 1765
- ↔ Reverse comparison
Rev 579 → Rev 1765
/h8300.mt
0,0 → 1,6
# Target: H8300 with HMS monitor, E7000 ICE and H8 simulator |
TDEPFILES= h8300-tdep.o remote-e7000.o ser-e7kpc.o monitor.o remote-hms.o dsrec.o |
TM_FILE= tm-h8300.h |
|
SIM_OBS = remote-sim.o |
SIM = ../sim/h8300/libsim.a |
/tm-h8300.h
0,0 → 1,301
/* Parameters for execution on a H8/300 series machine. |
Copyright 1992, 1993 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 Steve Chamberlain sac@cygnus.com */ |
|
struct frame_info; |
struct frame_saved_regs; |
struct value; |
struct type; |
|
/* 1 if debugging H8/300H application */ |
extern int h8300hmode; |
extern int h8300smode; |
|
/* Number of bytes in a word */ |
|
#define BINWORD (h8300hmode?4:2) |
|
#define EXTRA_FRAME_INFO \ |
struct frame_saved_regs *fsr; \ |
CORE_ADDR from_pc; \ |
CORE_ADDR args_pointer;\ |
CORE_ADDR locals_pointer ; |
|
/* Zero the frame_saved_regs pointer when the frame is initialized, |
so that FRAME_FIND_SAVED_REGS () will know to allocate and |
initialize a frame_saved_regs struct the first time it is called. |
Set the arg_pointer to -1, which is not valid; 0 and other values |
indicate real, cached values. */ |
|
#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \ |
h8300_init_extra_frame_info (fromleaf, fi) |
|
extern void h8300_init_extra_frame_info (); |
|
#define IEEE_FLOAT |
/* Define the bit, byte, and word ordering of the machine. */ |
#define TARGET_BYTE_ORDER BIG_ENDIAN |
#undef TARGET_INT_BIT |
#define TARGET_INT_BIT 16 |
#undef TARGET_LONG_BIT |
#define TARGET_LONG_BIT 32 |
#undef TARGET_PTR_BIT |
#define TARGET_PTR_BIT (h8300hmode ? 32:16) |
|
/* 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. */ |
|
#define SKIP_PROLOGUE(ip) (h8300_skip_prologue(ip)) |
extern CORE_ADDR h8300_skip_prologue (); |
|
/* 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. */ |
|
#define SAVED_PC_AFTER_CALL(frame) \ |
read_memory_unsigned_integer (read_register (SP_REGNUM), BINWORD) |
|
/* Stack grows downward. */ |
|
#define INNER_THAN(lhs,rhs) ((lhs) < (rhs)) |
|
/*#define BREAKPOINT {0x7A, 0xFF} */ |
#define BREAKPOINT {0x01, 0x80} /* Sleep */ |
#define REMOTE_BREAKPOINT { 0x57, 0x30} /* trapa #3 */ |
/* 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 |
|
/* Say how long registers are. */ |
|
#define REGISTER_SIZE 4 |
|
#define NUM_REGS 13 |
|
#define REGISTER_BYTES (NUM_REGS * 4) |
|
/* Index within `registers' of the first byte of the space for |
register N. */ |
|
#define REGISTER_BYTE(N) ((N) * 4) |
|
/* Number of bytes of storage in the actual machine representation |
for register N. On the H8/300, all regs are 2 bytes. */ |
|
#define REGISTER_RAW_SIZE(N) (h8300hmode ? 4 : 2) |
|
/* Number of bytes of storage in the program's representation |
for register N. */ |
|
#define REGISTER_VIRTUAL_SIZE(N) (h8300hmode ? 4 : 2) |
|
/* 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) \ |
(h8300hmode ? builtin_type_unsigned_long : builtin_type_unsigned_short) |
|
/* Initializer for an array of names of registers. |
Entries beyond the first NUM_REGS are ignored. */ |
|
#define REGISTER_NAMES \ |
{"r0", "r1", "r2", "r3", "r4", "r5", "r6", "sp", "ccr","pc","cycles","tick","inst"} |
|
/* An array of names of registers. */ |
|
extern char **h8300_register_names; |
#define REGISTER_NAME(i) h8300_register_names[i] |
|
/* 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 ARG0_REGNUM 0 /* first reg in which an arg may be passed */ |
#define ARGLAST_REGNUM 2 /* last reg in which an arg may be passed */ |
#define FP_REGNUM 6 /* Contain saddress of executing stack frame */ |
#define SP_REGNUM 7 /* Contains address of top of stack */ |
#define CCR_REGNUM 8 /* Contains processor status */ |
#define PC_REGNUM 9 /* Contains program counter */ |
|
/* 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. */ |
|
/* FIXME: Won't work with both h8/300's. */ |
|
extern void h8300_extract_return_value PARAMS ((struct type *, char *, char *)); |
#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \ |
h8300_extract_return_value (TYPE, (char *)(REGBUF), (char *)(VALBUF)) |
|
/* Write into appropriate registers a function return value |
of type TYPE, given in virtual format. Assumes floats are passed |
in d0/d1. */ |
/* FIXME: Won't work with both h8/300's. */ |
|
extern void h8300_store_return_value PARAMS ((struct type *, char *)); |
#define STORE_RETURN_VALUE(TYPE,VALBUF) \ |
h8300_store_return_value(TYPE, (char *) (VALBUF)) |
|
/* struct passing and returning stuff */ |
#define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) \ |
write_register (0, STRUCT_ADDR) |
|
#define USE_STRUCT_CONVENTION(gcc_p, type) (1) |
|
/* 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) \ |
extract_address (REGBUF + REGISTER_BYTE (0), \ |
REGISTER_RAW_SIZE (0)) |
|
/* Describe the pointer in each stack frame to the previous stack frame |
(its caller). */ |
|
/* FRAME_CHAIN takes a frame's nominal address |
and produces the frame's chain-pointer. |
|
However, if FRAME_CHAIN_VALID returns zero, |
it means the given frame is the outermost one and has no caller. */ |
|
#define FRAME_CHAIN(FRAME) h8300_frame_chain(FRAME) |
CORE_ADDR h8300_frame_chain PARAMS ((struct frame_info *)); |
|
/* In the case of the H8/300, the frame's nominal address |
is the address of a 2-byte word containing the calling frame's address. */ |
|
/* Use the alternate method of avoiding running up off the end of |
the frame chain or following frames back into the startup code. |
See the comments in objfile.h */ |
|
#define FRAME_CHAIN_VALID(fp,fi) func_frame_chain_valid (fp, fi) |
|
/* Define other aspects of the stack frame. */ |
|
/* 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_look_for_prologue (FI)) |
|
/* Any function with a frame looks like this |
SECOND ARG |
FIRST ARG |
RET PC |
SAVED R2 |
SAVED R3 |
SAVED FP <-FP POINTS HERE |
LOCALS0 |
LOCALS1 <-SP POINTS HERE |
*/ |
|
#define FRAME_SAVED_PC(FRAME) h8300_frame_saved_pc(FRAME) |
|
#define FRAME_ARGS_ADDRESS(fi) frame_args_address(fi) |
|
#define FRAME_LOCALS_ADDRESS(fi) frame_locals_address(fi); |
|
/* 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 |
now that the C compiler delays popping them. */ |
|
#define FRAME_NUM_ARGS(fi) (-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) \ |
h8300_frame_find_saved_regs(frame_info, &(frame_saved_regs)) |
|
|
typedef unsigned short INSN_WORD; |
|
|
#define PRINT_REGISTER_HOOK(regno) print_register_hook(regno) |
|
#define GDB_TARGET_IS_H8300 |
|
#define NUM_REALREGS 10 |
#define NOP { 0x01, 0x80} /* A sleep insn */ |
|
#define BELIEVE_PCC_PROMOTION 1 |
|
/* |
* CALL_DUMMY stuff: |
*/ |
|
#define USE_GENERIC_DUMMY_FRAMES 1 |
#define CALL_DUMMY {0} |
#define CALL_DUMMY_LENGTH (0) |
#define CALL_DUMMY_ADDRESS() entry_point_address () |
#define CALL_DUMMY_LOCATION AT_ENTRY_POINT |
#define CALL_DUMMY_START_OFFSET (0) |
#define CALL_DUMMY_BREAKPOINT_OFFSET (0) |
|
extern CORE_ADDR h8300_push_arguments PARAMS ((int nargs, |
struct value ** args, |
CORE_ADDR sp, |
unsigned char struct_return, |
CORE_ADDR struct_addr)); |
extern CORE_ADDR h8300_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR)); |
|
#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP) |
#define FIX_CALL_DUMMY(DUMMY, START_SP, FUNADDR, NARGS, ARGS, TYPE, GCCP) |
#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \ |
(h8300_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)) |
/* Push an empty stack frame, to record the current PC, etc. */ |
#define PUSH_DUMMY_FRAME generic_push_dummy_frame () |
/* Discard from the stack the innermost frame, restoring all registers. */ |
#define POP_FRAME h8300_pop_frame () |
#define PUSH_RETURN_ADDRESS(PC, SP) h8300_push_return_address (PC, SP) |
|
/* override the standard get_saved_register function with |
one that takes account of generic CALL_DUMMY frames */ |
#define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \ |
generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval) |