cc17453a58
Multiarch the sh target.
* sh-tdep.c:
(sh_generic_reg_names, sh_reg_names,sh3_reg_names, sh3e_reg_names,
sh_dsp_reg_names, sh3_dsp_reg_names, sh_processor_type_table):
Remove.
(XMALLOC): Define.
(struct frame_extra_info): Define.
(sh_register_raw_size, sh_register_virtual_size,
sh_register_virtual_type, sh_register_byte, sh_breakpoint_from_pc,
sh_frame_saved_pc, sh_skip_prologue,
sh_nofp_frame_init_saved_regs, sh_fp_frame_init_saved_regs,
sh_extract_struct_value_address, sh_use_struct_convention,
sh_store_struct_return, sh_push_arguments, sh_push_return_address,
sh_saved_pc_after_call, sh_generic_register_name,
sh_sh_register_name, sh_sh3_register_name, sh_sh3e_register_name,
sh_sh_dsp_register_name, sh_sh3_dsp_register_name,
sh_frame_args_address, sh_frame_locals_address,
sh_coerce_float_to_double, sh_default_store_return_value,
sh3e_sh4_store_return_value, sh_generic_show_regs,
sh3_show_regs,sh3e_show_regs, sh3_dsp_show_regs, sh4_show_regs,
sh_dsp_show_regs, sh_register_byte, sh_register_raw_size,
sh_register_virtual_size, sh_sh3e_register_virtual_type,
sh_default_register_virtual_type, sh_gdbarch_init): New functions.
(sh_target_architecture_hook, sh_frame_find_saved_regs,
sh_show_regs): Delete functions.
(sh_frame_chain, sh_find_callers_reg, sh_init_extra_frame_info,
sh_pop_frame, sh_extract_return_value): Update
* config/sh/tm-sh.h (GDB_MULTI_ARCH): Define to 1.
(struct gdbarch_tdep): Define.
Remove all unnecessary defines.
* remote-e7000.c ({PR,GBR,SR,MACL,VBR,MACH}_REGNUM): Define to -1,
for h8300 case.
(want_sh,want_nopc_sh,want_nopc_sh3): Make nomenclature
consistent.
(e7000_fetch_registers): Remove ifdef GDB_TARGET_IS_SH, use
runtime check instead.
(e7000_wait): Ditto.
* sh3-rom.c (sh3_supply_register): Use gdbarch_tdep to get the SSR
and SPC register numbers.
(sh3_regnames, sh3e_regnames): Don't specify a size.
* config/h8300/tm-h8300.h: Add comment.
307 lines
10 KiB
C
307 lines
10 KiB
C
/* Parameters for execution on a H8/300 series machine.
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Copyright 1992, 1993, 2000 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* Contributed by Steve Chamberlain sac@cygnus.com */
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struct frame_info;
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struct frame_saved_regs;
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struct value;
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struct type;
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/* 1 if debugging H8/300H application */
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/* NOTE: ezannoni 2000-07-18: these variables are part of sim, defined
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in sim/h8300/compile.c. They really should not be used this
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way. Because of this we cannot get rid of the macro
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GDB_TARGET_IS_H8300 in remote-e7000.c */
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extern int h8300hmode;
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extern int h8300smode;
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/* Number of bytes in a word */
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#define BINWORD (h8300hmode?4:2)
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#define EXTRA_FRAME_INFO \
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struct frame_saved_regs *fsr; \
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CORE_ADDR from_pc; \
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CORE_ADDR args_pointer;\
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CORE_ADDR locals_pointer ;
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/* Zero the frame_saved_regs pointer when the frame is initialized,
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so that FRAME_FIND_SAVED_REGS () will know to allocate and
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initialize a frame_saved_regs struct the first time it is called.
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Set the arg_pointer to -1, which is not valid; 0 and other values
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indicate real, cached values. */
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#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) \
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h8300_init_extra_frame_info (fromleaf, fi)
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extern void h8300_init_extra_frame_info ();
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#define IEEE_FLOAT (1)
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/* Define the bit, byte, and word ordering of the machine. */
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#define TARGET_BYTE_ORDER BIG_ENDIAN
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#undef TARGET_INT_BIT
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#define TARGET_INT_BIT 16
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#undef TARGET_LONG_BIT
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#define TARGET_LONG_BIT 32
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#undef TARGET_PTR_BIT
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#define TARGET_PTR_BIT (h8300hmode ? 32:16)
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/* Offset from address of function to start of its code.
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Zero on most machines. */
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#define FUNCTION_START_OFFSET 0
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/* Advance PC across any function entry prologue instructions
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to reach some "real" code. */
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#define SKIP_PROLOGUE(ip) (h8300_skip_prologue(ip))
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extern CORE_ADDR h8300_skip_prologue ();
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/* Immediately after a function call, return the saved pc.
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Can't always go through the frames for this because on some machines
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the new frame is not set up until the new function executes
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some instructions. */
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#define SAVED_PC_AFTER_CALL(frame) \
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read_memory_unsigned_integer (read_register (SP_REGNUM), BINWORD)
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/* Stack grows downward. */
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#define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
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/*#define BREAKPOINT {0x7A, 0xFF} */
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#define BREAKPOINT {0x01, 0x80} /* Sleep */
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#define REMOTE_BREAKPOINT { 0x57, 0x30} /* trapa #3 */
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/* If your kernel resets the pc after the trap happens you may need to
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define this before including this file. */
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#define DECR_PC_AFTER_BREAK 0
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/* Say how long registers are. */
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#define REGISTER_SIZE 4
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#define NUM_REGS 13
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#define REGISTER_BYTES (NUM_REGS * 4)
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/* Index within `registers' of the first byte of the space for
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register N. */
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#define REGISTER_BYTE(N) ((N) * 4)
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/* Number of bytes of storage in the actual machine representation
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for register N. On the H8/300, all regs are 2 bytes. */
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#define REGISTER_RAW_SIZE(N) (h8300hmode ? 4 : 2)
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/* Number of bytes of storage in the program's representation
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for register N. */
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#define REGISTER_VIRTUAL_SIZE(N) (h8300hmode ? 4 : 2)
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/* Largest value REGISTER_RAW_SIZE can have. */
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#define MAX_REGISTER_RAW_SIZE 4
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/* Largest value REGISTER_VIRTUAL_SIZE can have. */
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#define MAX_REGISTER_VIRTUAL_SIZE 4
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/* Return the GDB type object for the "standard" data type
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of data in register N. */
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#define REGISTER_VIRTUAL_TYPE(N) \
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(h8300hmode ? builtin_type_unsigned_long : builtin_type_unsigned_short)
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/* Initializer for an array of names of registers.
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Entries beyond the first NUM_REGS are ignored. */
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#define REGISTER_NAMES \
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{"r0", "r1", "r2", "r3", "r4", "r5", "r6", "sp", "ccr","pc","cycles","tick","inst"}
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/* An array of names of registers. */
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extern char **h8300_register_names;
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#define REGISTER_NAME(i) h8300_register_names[i]
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/* Register numbers of various important registers.
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Note that some of these values are "real" register numbers,
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and correspond to the general registers of the machine,
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and some are "phony" register numbers which are too large
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to be actual register numbers as far as the user is concerned
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but do serve to get the desired values when passed to read_register. */
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#define ARG0_REGNUM 0 /* first reg in which an arg may be passed */
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#define ARGLAST_REGNUM 2 /* last reg in which an arg may be passed */
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#define FP_REGNUM 6 /* Contain saddress of executing stack frame */
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#define SP_REGNUM 7 /* Contains address of top of stack */
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#define CCR_REGNUM 8 /* Contains processor status */
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#define PC_REGNUM 9 /* Contains program counter */
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/* Extract from an array REGBUF containing the (raw) register state
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a function return value of type TYPE, and copy that, in virtual format,
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into VALBUF. */
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/* FIXME: Won't work with both h8/300's. */
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extern void h8300_extract_return_value (struct type *, char *, char *);
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#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
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h8300_extract_return_value (TYPE, (char *)(REGBUF), (char *)(VALBUF))
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/* Write into appropriate registers a function return value
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of type TYPE, given in virtual format. Assumes floats are passed
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in d0/d1. */
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/* FIXME: Won't work with both h8/300's. */
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extern void h8300_store_return_value (struct type *, char *);
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#define STORE_RETURN_VALUE(TYPE,VALBUF) \
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h8300_store_return_value(TYPE, (char *) (VALBUF))
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/* struct passing and returning stuff */
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#define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) \
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write_register (0, STRUCT_ADDR)
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#define USE_STRUCT_CONVENTION(gcc_p, type) (1)
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/* Extract from an array REGBUF containing the (raw) register state
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the address in which a function should return its structure value,
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as a CORE_ADDR (or an expression that can be used as one). */
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#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
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extract_address (REGBUF + REGISTER_BYTE (0), \
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REGISTER_RAW_SIZE (0))
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/* Describe the pointer in each stack frame to the previous stack frame
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(its caller). */
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/* FRAME_CHAIN takes a frame's nominal address
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and produces the frame's chain-pointer.
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However, if FRAME_CHAIN_VALID returns zero,
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it means the given frame is the outermost one and has no caller. */
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#define FRAME_CHAIN(FRAME) h8300_frame_chain(FRAME)
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CORE_ADDR h8300_frame_chain (struct frame_info *);
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/* In the case of the H8/300, the frame's nominal address
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is the address of a 2-byte word containing the calling frame's address. */
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/* Use the alternate method of avoiding running up off the end of
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the frame chain or following frames back into the startup code.
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See the comments in objfile.h */
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#define FRAME_CHAIN_VALID(fp,fi) func_frame_chain_valid (fp, fi)
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/* Define other aspects of the stack frame. */
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/* A macro that tells us whether the function invocation represented
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by FI does not have a frame on the stack associated with it. If it
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does not, FRAMELESS is set to 1, else 0. */
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#define FRAMELESS_FUNCTION_INVOCATION(FI) \
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(frameless_look_for_prologue (FI))
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/* Any function with a frame looks like this
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SECOND ARG
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FIRST ARG
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RET PC
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SAVED R2
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SAVED R3
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SAVED FP <-FP POINTS HERE
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LOCALS0
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LOCALS1 <-SP POINTS HERE
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*/
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#define FRAME_SAVED_PC(FRAME) h8300_frame_saved_pc(FRAME)
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#define FRAME_ARGS_ADDRESS(fi) frame_args_address(fi)
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#define FRAME_LOCALS_ADDRESS(fi) frame_locals_address(fi);
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/* Set VAL to the number of args passed to frame described by FI.
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Can set VAL to -1, meaning no way to tell. */
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/* We can't tell how many args there are
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now that the C compiler delays popping them. */
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#define FRAME_NUM_ARGS(fi) (-1)
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/* Return number of bytes at start of arglist that are not really args. */
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#define FRAME_ARGS_SKIP 0
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/* Put here the code to store, into a struct frame_saved_regs,
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the addresses of the saved registers of frame described by FRAME_INFO.
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This includes special registers such as pc and fp saved in special
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ways in the stack frame. sp is even more special:
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the address we return for it IS the sp for the next frame. */
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#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
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h8300_frame_find_saved_regs(frame_info, &(frame_saved_regs))
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typedef unsigned short INSN_WORD;
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#define PRINT_REGISTER_HOOK(regno) print_register_hook(regno)
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#define GDB_TARGET_IS_H8300
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#define NUM_REALREGS 10
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#define NOP { 0x01, 0x80} /* A sleep insn */
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#define BELIEVE_PCC_PROMOTION 1
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/*
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* CALL_DUMMY stuff:
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*/
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#define USE_GENERIC_DUMMY_FRAMES 1
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#define CALL_DUMMY {0}
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#define CALL_DUMMY_LENGTH (0)
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#define CALL_DUMMY_ADDRESS() entry_point_address ()
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#define CALL_DUMMY_LOCATION AT_ENTRY_POINT
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#define CALL_DUMMY_START_OFFSET (0)
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#define CALL_DUMMY_BREAKPOINT_OFFSET (0)
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extern CORE_ADDR h8300_push_arguments (int nargs,
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struct value **args,
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CORE_ADDR sp,
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unsigned char struct_return,
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CORE_ADDR struct_addr);
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extern CORE_ADDR h8300_push_return_address (CORE_ADDR, CORE_ADDR);
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#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP)
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#define FIX_CALL_DUMMY(DUMMY, START_SP, FUNADDR, NARGS, ARGS, TYPE, GCCP)
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#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
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(h8300_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR))
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/* Push an empty stack frame, to record the current PC, etc. */
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#define PUSH_DUMMY_FRAME generic_push_dummy_frame ()
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/* Discard from the stack the innermost frame, restoring all registers. */
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#define POP_FRAME h8300_pop_frame ()
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#define PUSH_RETURN_ADDRESS(PC, SP) h8300_push_return_address (PC, SP)
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/* override the standard get_saved_register function with
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one that takes account of generic CALL_DUMMY frames */
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#define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \
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generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
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