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/* Parameters for execution on a Mitsubishi m32r processor.
Copyright 1996, 1997 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. */
/* Used by mswin. */
#define TARGET_M32R 1
/* mvs_check TARGET_BYTE_ORDER BIG_ENDIAN */
#define TARGET_BYTE_ORDER BIG_ENDIAN
/* mvs_check REGISTER_NAMES */
#define REGISTER_NAMES \
{ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \
"r8", "r9", "r10", "r11", "r12", "fp", "lr", "sp", \
"psw", "cbr", "spi", "spu", "bpc", "pc", "accl", "acch", \
/* "cond", "sm", "bsm", "ie", "bie", "bcarry", */ \
}
/* mvs_check NUM_REGS */
#define NUM_REGS 24
/* mvs_check REGISTER_SIZE */
#define REGISTER_SIZE 4
/* mvs_check MAX_REGISTER_RAW_SIZE */
#define MAX_REGISTER_RAW_SIZE 4
/* mvs_check *_REGNUM */
#define R0_REGNUM 0
#define STRUCT_RETURN_REGNUM 0
#define ARG0_REGNUM 0
#define ARGLAST_REGNUM 3
#define V0_REGNUM 0
#define V1_REGNUM 1
#define FP_REGNUM 13
#define RP_REGNUM 14
#define SP_REGNUM 15
#define PSW_REGNUM 16
#define CBR_REGNUM 17
#define SPI_REGNUM 18
#define SPU_REGNUM 19
#define BPC_REGNUM 20
#define PC_REGNUM 21
#define ACCL_REGNUM 22
#define ACCH_REGNUM 23
/* mvs_check REGISTER_BYTES */
#define REGISTER_BYTES (NUM_REGS * 4)
/* mvs_check REGISTER_VIRTUAL_TYPE */
#define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
/* mvs_check REGISTER_BYTE */
#define REGISTER_BYTE(REG) ((REG) * 4)
/* mvs_check REGISTER_VIRTUAL_SIZE */
#define REGISTER_VIRTUAL_SIZE(REG) 4
/* mvs_check REGISTER_RAW_SIZE */
#define REGISTER_RAW_SIZE(REG) 4
/* mvs_check MAX_REGISTER_VIRTUAL_SIZE */
#define MAX_REGISTER_VIRTUAL_SIZE 4
/* mvs_check BREAKPOINT */
#define BREAKPOINT {0x10, 0xf1}
/* mvs_no_check FUNCTION_START_OFFSET */
#define FUNCTION_START_OFFSET 0
/* mvs_check DECR_PC_AFTER_BREAK */
#define DECR_PC_AFTER_BREAK 0
/* mvs_check INNER_THAN */
#define INNER_THAN(lhs,rhs) ((lhs) < (rhs))
/* mvs_check SAVED_PC_AFTER_CALL */
#define SAVED_PC_AFTER_CALL(fi) read_register (RP_REGNUM)
#ifdef __STDC__
struct frame_info;
struct frame_saved_regs;
struct type;
struct value;
#endif
/* Define other aspects of the stack frame.
We keep the offsets of all saved registers, 'cause we need 'em a lot!
We also keep the current size of the stack frame, and whether
the frame pointer is valid (for frameless functions, and when we're
still in the prologue of a function with a frame) */
/* mvs_check EXTRA_FRAME_INFO */
#define EXTRA_FRAME_INFO \
struct frame_saved_regs fsr; \
int framesize; \
int using_frame_pointer;
extern void m32r_init_extra_frame_info PARAMS ((struct frame_info *fi));
/* mvs_check INIT_EXTRA_FRAME_INFO */
#define INIT_EXTRA_FRAME_INFO(fromleaf, fi) m32r_init_extra_frame_info (fi)
/* mvs_no_check INIT_FRAME_PC */
#define INIT_FRAME_PC /* Not necessary */
extern void
m32r_frame_find_saved_regs PARAMS ((struct frame_info *fi,
struct frame_saved_regs *regaddr));
/* 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. */
/* mvs_check FRAME_FIND_SAVED_REGS */
#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
m32r_frame_find_saved_regs(frame_info, &(frame_saved_regs))
extern CORE_ADDR m32r_frame_chain PARAMS ((struct frame_info *fi));
/* mvs_check FRAME_CHAIN */
#define FRAME_CHAIN(fi) m32r_frame_chain (fi)
#define FRAME_CHAIN_VALID(fp, frame) generic_frame_chain_valid (fp, frame)
extern CORE_ADDR m32r_find_callers_reg PARAMS ((struct frame_info *fi,
int regnum));
extern CORE_ADDR m32r_frame_saved_pc PARAMS((struct frame_info *));
/* mvs_check FRAME_SAVED_PC */
#define FRAME_SAVED_PC(fi) m32r_frame_saved_pc (fi)
/* mvs_check EXTRACT_RETURN_VALUE */
#define EXTRACT_RETURN_VALUE(TYPE, REGBUF, VALBUF) \
memcpy ((VALBUF), \
(char *)(REGBUF) + REGISTER_BYTE (V0_REGNUM) + \
((TYPE_LENGTH (TYPE) > 4 ? 8 : 4) - TYPE_LENGTH (TYPE)), \
TYPE_LENGTH (TYPE))
/* mvs_check STORE_RETURN_VALUE */
#define STORE_RETURN_VALUE(TYPE, VALBUF) \
write_register_bytes(REGISTER_BYTE (V0_REGNUM) + \
((TYPE_LENGTH (TYPE) > 4 ? 8:4) - TYPE_LENGTH (TYPE)),\
(VALBUF), TYPE_LENGTH (TYPE));
extern CORE_ADDR m32r_skip_prologue PARAMS ((CORE_ADDR pc));
/* mvs_check SKIP_PROLOGUE */
#define SKIP_PROLOGUE(pc) (m32r_skip_prologue (pc))
/* mvs_no_check FRAME_ARGS_SKIP */
#define FRAME_ARGS_SKIP 0
/* mvs_no_check FRAME_ARGS_ADDRESS */
#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
/* mvs_no_check FRAME_LOCALS_ADDRESS */
#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
/* mvs_no_check FRAME_NUM_ARGS */
#define FRAME_NUM_ARGS(val, fi) ((val) = -1)
#define COERCE_FLOAT_TO_DOUBLE 1
#define TARGET_WRITE_SP m32r_write_sp
/* struct passing and returning stuff */
#define STORE_STRUCT_RETURN(STRUCT_ADDR, SP) \
write_register (0, STRUCT_ADDR)
extern use_struct_convention_fn m32r_use_struct_convention;
#define USE_STRUCT_CONVENTION(GCC_P, TYPE) m32r_use_struct_convention (GCC_P, TYPE)
#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
extract_address (REGBUF + REGISTER_BYTE (V0_REGNUM), \
REGISTER_RAW_SIZE (V0_REGNUM))
#define REG_STRUCT_HAS_ADDR(gcc_p,type) (TYPE_LENGTH (type) > 8)
/* generic dummy frame stuff */
#define PUSH_DUMMY_FRAME generic_push_dummy_frame ()
#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP)
/* target-specific dummy_frame stuff */
extern struct frame_info *m32r_pop_frame PARAMS ((struct frame_info *frame));
/* mvs_check POP_FRAME */
#define POP_FRAME m32r_pop_frame (get_current_frame ())
/* mvs_no_check STACK_ALIGN */
/* #define STACK_ALIGN(x) ((x + 3) & ~3) */
extern CORE_ADDR m32r_push_return_address PARAMS ((CORE_ADDR, CORE_ADDR));
extern CORE_ADDR m32r_push_arguments PARAMS ((int nargs,
struct value **args,
CORE_ADDR sp,
unsigned char struct_return,
CORE_ADDR struct_addr));
/* mvs_no_check PUSH_ARGUMENTS */
#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
(SP) = m32r_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
#define PUSH_RETURN_ADDRESS(PC, SP) m32r_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)
#define USE_GENERIC_DUMMY_FRAMES 1
#define CALL_DUMMY {0}
#define CALL_DUMMY_LENGTH (0)
#define CALL_DUMMY_START_OFFSET (0)
#define CALL_DUMMY_BREAKPOINT_OFFSET (0)
#define FIX_CALL_DUMMY(DUMMY1, STARTADDR, FUNADDR, NARGS, ARGS, TYPE, GCCP)
#define CALL_DUMMY_LOCATION AT_ENTRY_POINT
#define CALL_DUMMY_ADDRESS() entry_point_address ()
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