[deliverable/binutils-gdb.git] / gdb / config / mcore / tm-mcore.h

/* Parameters for execution on a Motorola MCore.

   Copyright 1995, 1999, 2000, 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. */

#include "regcache.h"
#include "symtab.h"		/* For namespace_enum.  */
#include "symfile.h"		/* For entry_point_address().  */

#define GDB_MULTI_ARCH 0

#if !GDB_MULTI_ARCH
/* All registers are 32 bits */
#define REGISTER_SIZE 4
#define MAX_REGISTER_RAW_SIZE 4

#define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int

#define REGISTER_BYTE(REG) ((REG) * REGISTER_SIZE)
#define REGISTER_VIRTUAL_SIZE(REG) 4
#define REGISTER_RAW_SIZE(REG) 4

#define MAX_REGISTER_VIRTUAL_SIZE 4
#endif

#define REGISTER_BYTES (NUM_REGS * REGISTER_SIZE)

#if !GDB_MULTI_ARCH
extern char *mcore_register_names[];
#define REGISTER_NAME(I) mcore_register_names[I]
#endif

/* Registers. The Motorola MCore contains:

   16 32-bit general purpose registers (r0-r15)
   16 32-bit alternate file registers (ar0-ar15)
   32 32-bit control registers (cr0-cr31)
   + 1 pc
   ------
   65 registers */
#define NUM_REGS 65
#define PC_REGNUM 64
#define SP_REGNUM 0
#define FP_REGNUM (SP_REGNUM)
#define PR_REGNUM 15
#define FIRST_ARGREG 2
#define LAST_ARGREG 7
#define RETVAL_REGNUM 2

/* Offset from address of function to start of its code.
   Zero on most machines.  */
#define FUNCTION_START_OFFSET 0

#define DECR_PC_AFTER_BREAK 0

/* BREAKPOINT_FROM_PC uses the program counter value to determine
   the breakpoint that should be used. */
extern const unsigned char *mcore_breakpoint_from_pc (CORE_ADDR *pcptr,
						      int *lenptr);
#define BREAKPOINT_FROM_PC(PCPTR, LENPTR) mcore_breakpoint_from_pc (PCPTR, LENPTR)

#define INNER_THAN(LHS,RHS) ((LHS) < (RHS))

#define SAVED_PC_AFTER_CALL(FRAME)  read_register (PR_REGNUM)

struct frame_info;
struct type;
struct value;

extern void mcore_init_extra_frame_info (struct frame_info *fi);
#define INIT_EXTRA_FRAME_INFO(FROMLEAF, FI) mcore_init_extra_frame_info ((FI))
#define INIT_FRAME_PC		/* Not necessary */
#define FRAME_INIT_SAVED_REGS(FI)	/* handled by init_extra_frame_info */

extern CORE_ADDR mcore_frame_chain (struct frame_info *fi);
#define FRAME_CHAIN(FI) mcore_frame_chain ((FI))
#define FRAME_CHAIN_VALID(FP, FI) generic_file_frame_chain_valid ((FP), (FI))

extern CORE_ADDR mcore_frame_saved_pc (struct frame_info *);
#define FRAME_SAVED_PC(FI) (mcore_frame_saved_pc ((FI)))

/* Extracting/storing return values. */
extern void mcore_store_return_value (struct type *type, char *valbuf);
#define STORE_RETURN_VALUE(TYPE, VALBUF) mcore_store_return_value ((TYPE), (VALBUF))

extern void mcore_extract_return_value (struct type *type, char *regbut, char *valbuf);
#define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
    mcore_extract_return_value ((TYPE), (REGBUF), (VALBUF));

#define STORE_STRUCT_RETURN(ADDR, SP)	/* handled by mcore_push_arguments */

extern CORE_ADDR mcore_extract_struct_value_address (char *regbuf);
#define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
    mcore_extract_struct_value_address (REGBUF)

extern CORE_ADDR mcore_skip_prologue (CORE_ADDR pc);
#define SKIP_PROLOGUE(PC) mcore_skip_prologue (PC)

#define FRAME_ARGS_SKIP 0
extern CORE_ADDR mcore_frame_args_address (struct frame_info *fi);
#define FRAME_ARGS_ADDRESS(FI) mcore_frame_args_address ((FI))
extern CORE_ADDR mcore_frame_locals_address (struct frame_info *fi);
#define FRAME_LOCALS_ADDRESS(FI) mcore_frame_locals_address ((FI))
#define FRAME_NUM_ARGS(FI) (-1)


extern void mcore_pop_frame (struct frame_info *fi);
#define POP_FRAME mcore_pop_frame (get_current_frame ())

#if !GDB_MULTI_ARCH
#define USE_GENERIC_DUMMY_FRAMES 1
#define CALL_DUMMY                   {0}
#define CALL_DUMMY_START_OFFSET      (0)
#define CALL_DUMMY_BREAKPOINT_OFFSET (0)
#define CALL_DUMMY_LOCATION          AT_ENTRY_POINT
#define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP)
#define CALL_DUMMY_ADDRESS()         entry_point_address ()
#define SIZEOF_CALL_DUMMY_WORDS      0
#define SAVE_DUMMY_FRAME_TOS(SP)     generic_save_dummy_frame_tos (SP)
#endif

extern CORE_ADDR mcore_push_return_address (CORE_ADDR, CORE_ADDR);
#define PUSH_RETURN_ADDRESS(PC, SP)  mcore_push_return_address (PC, SP)

#define PUSH_DUMMY_FRAME	generic_push_dummy_frame ()

extern CORE_ADDR mcore_push_arguments (int, struct value **, CORE_ADDR,
				       unsigned char, CORE_ADDR);
#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
  (SP) = mcore_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)

#if !GDB_MULTI_ARCH
#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP)
#endif

/* MCore will never pass a sturcture by reference. It will always be split
   between registers and stack. */
#define REG_STRUCT_HAS_ADDR(GCC_P, TYPE) 0

extern use_struct_convention_fn mcore_use_struct_convention;
#define USE_STRUCT_CONVENTION(GCC_P, TYPE) mcore_use_struct_convention (GCC_P, TYPE)

/* override the default 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)

/* Cons up virtual frame pointer for trace */
extern void mcore_virtual_frame_pointer (CORE_ADDR, int *, LONGEST *);
#define TARGET_VIRTUAL_FRAME_POINTER(PC, REGP, OFFP) \
	mcore_virtual_frame_pointer ((PC), (REGP), (OFFP))

/* For PE, gcc will tell us what th real type of
   arguments are when it promotes arguments. */
#define BELIEVE_PCC_PROMOTION 1
Commit	Line	Data
96baa820	1	/* Parameters for execution on a Motorola MCore.
f4f9705a AC	2
f4f9705a AC	3	Copyright 1995, 1999, 2000, 2002 Free Software Foundation, Inc.
96baa820 JM	4
	5	This file is part of GDB.
	6
	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
	9	the Free Software Foundation; either version 2 of the License, or
	10	(at your option) any later version.
	11
	12	This program is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with this program; if not, write to the Free Software
	19	Foundation, Inc., 59 Temple Place - Suite 330,
	20	Boston, MA 02111-1307, USA. */
	21
f88e2c52	22	#include "regcache.h"
d5e72505 AC	23	#include "symtab.h" /* For namespace_enum. */
d5e72505 AC	24	#include "symfile.h" /* For entry_point_address(). */
f88e2c52	25
4cfe2084 GS	26	#define GDB_MULTI_ARCH 0
	27
	28	#if !GDB_MULTI_ARCH
96baa820 JM	29	/* All registers are 32 bits */
	30	#define REGISTER_SIZE 4
	31	#define MAX_REGISTER_RAW_SIZE 4
	32
	33	#define REGISTER_VIRTUAL_TYPE(REG) builtin_type_int
	34
	35	#define REGISTER_BYTE(REG) ((REG) * REGISTER_SIZE)
	36	#define REGISTER_VIRTUAL_SIZE(REG) 4
	37	#define REGISTER_RAW_SIZE(REG) 4
	38
	39	#define MAX_REGISTER_VIRTUAL_SIZE 4
4cfe2084	40	#endif
96baa820 JM	41
	42	#define REGISTER_BYTES (NUM_REGS * REGISTER_SIZE)
	43
4cfe2084	44	#if !GDB_MULTI_ARCH
96baa820 JM	45	extern char *mcore_register_names[];
96baa820 JM	46	#define REGISTER_NAME(I) mcore_register_names[I]
4cfe2084	47	#endif
96baa820 JM	48
	49	/* Registers. The Motorola MCore contains:
	50
	51	16 32-bit general purpose registers (r0-r15)
	52	16 32-bit alternate file registers (ar0-ar15)
	53	32 32-bit control registers (cr0-cr31)
	54	+ 1 pc
	55	------
	56	65 registers */
	57	#define NUM_REGS 65
	58	#define PC_REGNUM 64
	59	#define SP_REGNUM 0
	60	#define FP_REGNUM (SP_REGNUM)
	61	#define PR_REGNUM 15
	62	#define FIRST_ARGREG 2
	63	#define LAST_ARGREG 7
	64	#define RETVAL_REGNUM 2
	65
	66	/* Offset from address of function to start of its code.
	67	Zero on most machines. */
	68	#define FUNCTION_START_OFFSET 0
	69
	70	#define DECR_PC_AFTER_BREAK 0
	71
	72	/* BREAKPOINT_FROM_PC uses the program counter value to determine
	73	the breakpoint that should be used. */
f4f9705a AC	74	extern const unsigned char mcore_breakpoint_from_pc (CORE_ADDR pcptr,
f4f9705a AC	75	int *lenptr);
96baa820 JM	76	#define BREAKPOINT_FROM_PC(PCPTR, LENPTR) mcore_breakpoint_from_pc (PCPTR, LENPTR)
	77
	78	#define INNER_THAN(LHS,RHS) ((LHS) < (RHS))
	79
	80	#define SAVED_PC_AFTER_CALL(FRAME) read_register (PR_REGNUM)
	81
	82	struct frame_info;
	83	struct type;
	84	struct value;
	85
	86	extern void mcore_init_extra_frame_info (struct frame_info *fi);
	87	#define INIT_EXTRA_FRAME_INFO(FROMLEAF, FI) mcore_init_extra_frame_info ((FI))
	88	#define INIT_FRAME_PC /* Not necessary */
	89	#define FRAME_INIT_SAVED_REGS(FI) /* handled by init_extra_frame_info */
	90
	91	extern CORE_ADDR mcore_frame_chain (struct frame_info *fi);
	92	#define FRAME_CHAIN(FI) mcore_frame_chain ((FI))
c4093a6a	93	#define FRAME_CHAIN_VALID(FP, FI) generic_file_frame_chain_valid ((FP), (FI))
96baa820 JM	94
	95	extern CORE_ADDR mcore_frame_saved_pc (struct frame_info *);
	96	#define FRAME_SAVED_PC(FI) (mcore_frame_saved_pc ((FI)))
	97
	98	/* Extracting/storing return values. */
	99	extern void mcore_store_return_value (struct type type, char valbuf);
	100	#define STORE_RETURN_VALUE(TYPE, VALBUF) mcore_store_return_value ((TYPE), (VALBUF))
	101
	102	extern void mcore_extract_return_value (struct type type, char regbut, char *valbuf);
26e9b323	103	#define DEPRECATED_EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
96baa820 JM	104	mcore_extract_return_value ((TYPE), (REGBUF), (VALBUF));
	105
	106	#define STORE_STRUCT_RETURN(ADDR, SP) /* handled by mcore_push_arguments */
	107
	108	extern CORE_ADDR mcore_extract_struct_value_address (char *regbuf);
26e9b323	109	#define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) \
96baa820 JM	110	mcore_extract_struct_value_address (REGBUF)
	111
	112	extern CORE_ADDR mcore_skip_prologue (CORE_ADDR pc);
585230bd	113	#define SKIP_PROLOGUE(PC) mcore_skip_prologue (PC)
96baa820 JM	114
	115	#define FRAME_ARGS_SKIP 0
	116	extern CORE_ADDR mcore_frame_args_address (struct frame_info *fi);
	117	#define FRAME_ARGS_ADDRESS(FI) mcore_frame_args_address ((FI))
	118	extern CORE_ADDR mcore_frame_locals_address (struct frame_info *fi);
	119	#define FRAME_LOCALS_ADDRESS(FI) mcore_frame_locals_address ((FI))
	120	#define FRAME_NUM_ARGS(FI) (-1)
	121
	122
	123	extern void mcore_pop_frame (struct frame_info *fi);
	124	#define POP_FRAME mcore_pop_frame (get_current_frame ())
	125
4cfe2084	126	#if !GDB_MULTI_ARCH
96baa820 JM	127	#define USE_GENERIC_DUMMY_FRAMES 1
	128	#define CALL_DUMMY {0}
	129	#define CALL_DUMMY_START_OFFSET (0)
	130	#define CALL_DUMMY_BREAKPOINT_OFFSET (0)
	131	#define CALL_DUMMY_LOCATION AT_ENTRY_POINT
	132	#define FIX_CALL_DUMMY(DUMMY, START, FUNADDR, NARGS, ARGS, TYPE, GCCP)
	133	#define CALL_DUMMY_ADDRESS() entry_point_address ()
	134	#define SIZEOF_CALL_DUMMY_WORDS 0
7be570e7	135	#define SAVE_DUMMY_FRAME_TOS(SP) generic_save_dummy_frame_tos (SP)
4cfe2084	136	#endif
96baa820	137
a14ed312	138	extern CORE_ADDR mcore_push_return_address (CORE_ADDR, CORE_ADDR);
96baa820 JM	139	#define PUSH_RETURN_ADDRESS(PC, SP) mcore_push_return_address (PC, SP)
	140
	141	#define PUSH_DUMMY_FRAME generic_push_dummy_frame ()
	142
a14ed312 KB	143	extern CORE_ADDR mcore_push_arguments (int, struct value **, CORE_ADDR,
a14ed312 KB	144	unsigned char, CORE_ADDR);
96baa820 JM	145	#define PUSH_ARGUMENTS(NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR) \
	146	(SP) = mcore_push_arguments (NARGS, ARGS, SP, STRUCT_RETURN, STRUCT_ADDR)
	147
4cfe2084	148	#if !GDB_MULTI_ARCH
96baa820	149	#define PC_IN_CALL_DUMMY(PC, SP, FP) generic_pc_in_call_dummy (PC, SP, FP)
4cfe2084	150	#endif
96baa820 JM	151
	152	/* MCore will never pass a sturcture by reference. It will always be split
	153	between registers and stack. */
	154	#define REG_STRUCT_HAS_ADDR(GCC_P, TYPE) 0
	155
	156	extern use_struct_convention_fn mcore_use_struct_convention;
	157	#define USE_STRUCT_CONVENTION(GCC_P, TYPE) mcore_use_struct_convention (GCC_P, TYPE)
	158
	159	/* override the default get_saved_register function with
	160	one that takes account of generic CALL_DUMMY frames */
	161	#define GET_SAVED_REGISTER(raw_buffer, optimized, addrp, frame, regnum, lval) \
	162	generic_get_saved_register (raw_buffer, optimized, addrp, frame, regnum, lval)
	163
	164	/* Cons up virtual frame pointer for trace */
e0441cf0	165	extern void mcore_virtual_frame_pointer (CORE_ADDR, int , LONGEST );
96baa820 JM	166	#define TARGET_VIRTUAL_FRAME_POINTER(PC, REGP, OFFP) \
	167	mcore_virtual_frame_pointer ((PC), (REGP), (OFFP))
	168
96baa820 JM	169	/* For PE, gcc will tell us what th real type of
	170	arguments are when it promotes arguments. */
	171	#define BELIEVE_PCC_PROMOTION 1