[deliverable/binutils-gdb.git] / gdb / tm-sun386.h

/* Parameters for a Sun 386i target machine, for GDB, the GNU debugger.
   Copyright 1986, 1987, 1991, 1992 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., 675 Mass Ave, Cambridge, MA 02139, USA.  */

#define TARGET_BYTE_ORDER LITTLE_ENDIAN

#ifndef sun386
#define sun386
#endif
#define GDB_TARGET_IS_SUN386 1
#define SUNOS4
#define USE_MACHINE_REG_H

/* Perhaps some day this will work even without the following #define */
#define COFF_ENCAPSULATE

#ifdef COFF_ENCAPSULATE
#define NAMES_HAVE_UNDERSCORE
/* Avoid conflicts between our include files and <sys/exec.h>
   (maybe not needed anymore).  */
#define _EXEC_
#endif

/* sun386 ptrace seems unable to change the frame pointer */
#define PTRACE_FP_BUG

/* 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(frompc)   {(frompc) = i386_skip_prologue((frompc));}

extern int
i386_skip_prologue PARAMS ((int));

/* 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_integer (read_register (SP_REGNUM), 4))

/* Address of end of stack space.  */

#define STACK_END_ADDR 0xfc000000

/* Stack grows downward.  */

#define INNER_THAN <

/* Sequence of bytes for breakpoint instruction.  */

#define BREAKPOINT {0xcc}

/* Amount PC must be decremented by after a breakpoint.
   This is often the number of bytes in BREAKPOINT
   but not always.  */

#define DECR_PC_AFTER_BREAK 1

/* Nonzero if instruction at PC is a return instruction.  */

#define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 1) == 0xc3)

/* Return 1 if P points to an invalid floating point value.
   LEN is the length in bytes -- not relevant on the 386.  */

#define INVALID_FLOAT(p, len) (0)

/* Largest integer type */
#define LONGEST long

/* Name of the builtin type for the LONGEST type above. */
#define BUILTIN_TYPE_LONGEST builtin_type_long

/* Say how long (ordinary) registers are.  */

#define REGISTER_TYPE long

/* Number of machine registers */

#define NUM_REGS 35

/* Initializer for an array of names of registers.
   There should be NUM_REGS strings in this initializer.  */

/* the order of the first 8 registers must match the compiler's
 * numbering scheme (which is the same as the 386 scheme)
 * also, this table must match regmap in i386-pinsn.c.
 */
#define REGISTER_NAMES { "gs", "fs", "es", "ds",		\
			 "edi", "esi", "ebp", "esp",		\
			 "ebx", "edx", "ecx", "eax",		\
			 "retaddr", "trapnum", "errcode", "ip",	\
			 "cs", "ps", "sp", "ss",		\
			 "fst0", "fst1", "fst2", "fst3",	\
			 "fst4", "fst5", "fst6", "fst7",	\
			 "fctrl", "fstat", "ftag", "fip",	\
			 "fcs", "fopoff", "fopsel"		\
			 }

/* 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 FP_REGNUM 6		/* Contains address of executing stack frame */
#define SP_REGNUM 18		/* Contains address of top of stack */
#define PS_REGNUM 17		/* Contains processor status */
#define PC_REGNUM 15		/* Contains program counter */
#define FP0_REGNUM 20		/* Floating point register 0 */
#define FPC_REGNUM 28		/* 80387 control register */

/* Total amount of space needed to store our copies of the machine's
   register state, the array `registers'.  */
#define REGISTER_BYTES (20*4+8*10+7*4)

/* Index within `registers' of the first byte of the space for
   register N.  */

#define REGISTER_BYTE(N) \
 ((N) >= FPC_REGNUM ? (((N) - FPC_REGNUM) * 4) + 160	\
  : (N) >= FP0_REGNUM ? (((N) - FP0_REGNUM) * 10) + 80	\
  : (N) * 4)

/* Number of bytes of storage in the actual machine representation
   for register N.  */

#define REGISTER_RAW_SIZE(N) (((unsigned)((N) - FP0_REGNUM)) < 8 ? 10 : 4)

/* Number of bytes of storage in the program's representation
   for register N. */

#define REGISTER_VIRTUAL_SIZE(N) (((unsigned)((N) - FP0_REGNUM)) < 8 ? 8 : 4)

/* Largest value REGISTER_RAW_SIZE can have.  */

#define MAX_REGISTER_RAW_SIZE 10

/* Largest value REGISTER_VIRTUAL_SIZE can have.  */

#define MAX_REGISTER_VIRTUAL_SIZE 8

/* Nonzero if register N requires conversion
   from raw format to virtual format.  */

#define REGISTER_CONVERTIBLE(N) (((unsigned)((N) - FP0_REGNUM)) < 8)

/* Convert data from raw format for register REGNUM
   to virtual format for register REGNUM.  */

#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) 	\
{ if ((REGNUM) >= FP0_REGNUM && (REGNUM) < FPC_REGNUM)	\
    i387_to_double ((FROM), (TO));			\
  else							\
    bcopy ((FROM), (TO), 4); }

extern void
i387_to_double PARAMS ((char *, char *));

/* Convert data from virtual format for register REGNUM
   to raw format for register REGNUM.  */

#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) 	\
{ if ((REGNUM) >= FP0_REGNUM && (REGNUM) < FPC_REGNUM)	\
    double_to_i387 ((FROM), (TO));	\
  else					\
    bcopy ((FROM), (TO), 4); }

extern void
double_to_i387 PARAMS ((char *, char *));

/* Return the GDB type object for the "standard" data type
   of data in register N.  */

#define REGISTER_VIRTUAL_TYPE(N) \
 (((unsigned)((N) - FP0_REGNUM)) < 8 ? builtin_type_double : builtin_type_int)

/* Store the address of the place in which to copy the structure the
   subroutine will return.  This is called from call_function. */

#define STORE_STRUCT_RETURN(ADDR, SP) \
  { (SP) -= sizeof (ADDR);		\
    write_memory ((SP), &(ADDR), sizeof (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) \
  bcopy (REGBUF + REGISTER_BYTE (TYPE_CODE (TYPE) == TYPE_CODE_FLT ? FP0_REGNUM : 11), VALBUF, TYPE_LENGTH (TYPE))

/* Write into appropriate registers a function return value
   of type TYPE, given in virtual format.  */

#define STORE_RETURN_VALUE(TYPE,VALBUF) \
  write_register_bytes (REGISTER_BYTE (TYPE_CODE (TYPE) == TYPE_CODE_FLT ? FP0_REGNUM : 11), 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) (*(int *)(REGBUF))
\f
/* 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. */

#define FRAME_CHAIN(thisframe) \
  (!inside_entry_file ((thisframe)->pc) ? \
   read_memory_integer ((thisframe)->frame, 4) :\
   0)

/* 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) \
{ (FRAMELESS) = frameless_look_for_prologue (FI); }

#define FRAME_SAVED_PC(FRAME) (read_memory_integer ((FRAME)->frame + 4, 4))

#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)

#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)

/* Return number of args passed to a frame.
   Can return -1, meaning no way to tell.  */

#define FRAME_NUM_ARGS(numargs, fi) (numargs) = i386_frame_num_args(fi)

#ifdef __STDC__		/* Forward decl's for prototypes */
struct frame_info;
struct frame_saved_regs;
#endif

extern int
i386_frame_num_args PARAMS ((struct frame_info *));

/* Return number of bytes at start of arglist that are not really args.  */

#define FRAME_ARGS_SKIP 8

/* 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) \
{ i386_frame_find_saved_regs ((frame_info), &(frame_saved_regs)); }

extern void
i386_frame_find_saved_regs PARAMS ((struct frame_info *,
				    struct frame_saved_regs *));

\f
/* Things needed for making the inferior call functions.  */

/* Push an empty stack frame, to record the current PC, etc.  */

#define PUSH_DUMMY_FRAME { i386_push_dummy_frame (); }

extern void
i386_push_dummy_frame PARAMS ((void));

/* Discard from the stack the innermost frame, restoring all registers.  */

#define POP_FRAME  { i386_pop_frame (); }

extern void
i386_pop_frame PARAMS ((void));

/* this is 
 *   call 11223344 (32 bit relative)
 *   int3
 */

#define CALL_DUMMY { 0x223344e8, 0xcc11 }

#define CALL_DUMMY_LENGTH 8

#define CALL_DUMMY_START_OFFSET 0  /* Start execution at beginning of dummy */

/* Insert the specified number of args and function address
   into a call sequence of the above form stored at DUMMYNAME.  */

#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p)   \
{ \
	*(int *)((char *)(dummyname) + 1) = (int)(fun) - (pc) - 5; \
}
Commit	Line	Data
75af490b JG	1	/* Parameters for a Sun 386i target machine, for GDB, the GNU debugger.
75af490b JG	2	Copyright 1986, 1987, 1991, 1992 Free Software Foundation, Inc.
dd3b648e RP	3
	4	This file is part of GDB.
	5
99a7de40	6	This program is free software; you can redistribute it and/or modify
dd3b648e	7	it under the terms of the GNU General Public License as published by
99a7de40 JG	8	the Free Software Foundation; either version 2 of the License, or
99a7de40 JG	9	(at your option) any later version.
dd3b648e	10
99a7de40	11	This program is distributed in the hope that it will be useful,
dd3b648e RP	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
99a7de40 JG	17	along with this program; if not, write to the Free Software
99a7de40 JG	18	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
dd3b648e RP	19
	20	#define TARGET_BYTE_ORDER LITTLE_ENDIAN
	21
	22	#ifndef sun386
	23	#define sun386
	24	#endif
94ac73c1	25	#define GDB_TARGET_IS_SUN386 1
dd3b648e RP	26	#define SUNOS4
	27	#define USE_MACHINE_REG_H
	28
	29	/* Perhaps some day this will work even without the following #define */
	30	#define COFF_ENCAPSULATE
	31
	32	#ifdef COFF_ENCAPSULATE
	33	#define NAMES_HAVE_UNDERSCORE
44ff4c96 JG	34	/* Avoid conflicts between our include files and <sys/exec.h>
44ff4c96 JG	35	(maybe not needed anymore). */
dd3b648e RP	36	#define _EXEC_
	37	#endif
	38
dd3b648e RP	39	/* sun386 ptrace seems unable to change the frame pointer */
	40	#define PTRACE_FP_BUG
	41
dd3b648e RP	42	/* Offset from address of function to start of its code.
	43	Zero on most machines. */
	44
	45	#define FUNCTION_START_OFFSET 0
	46
	47	/* Advance PC across any function entry prologue instructions
	48	to reach some "real" code. */
	49
	50	#define SKIP_PROLOGUE(frompc) {(frompc) = i386_skip_prologue((frompc));}
	51
75af490b JG	52	extern int
	53	i386_skip_prologue PARAMS ((int));
	54
dd3b648e RP	55	/* Immediately after a function call, return the saved pc.
	56	Can't always go through the frames for this because on some machines
	57	the new frame is not set up until the new function executes
	58	some instructions. */
	59
	60	#define SAVED_PC_AFTER_CALL(frame) \
	61	(read_memory_integer (read_register (SP_REGNUM), 4))
	62
	63	/* Address of end of stack space. */
	64
	65	#define STACK_END_ADDR 0xfc000000
	66
	67	/* Stack grows downward. */
	68
	69	#define INNER_THAN <
	70
	71	/* Sequence of bytes for breakpoint instruction. */
	72
	73	#define BREAKPOINT {0xcc}
	74
	75	/* Amount PC must be decremented by after a breakpoint.
	76	This is often the number of bytes in BREAKPOINT
	77	but not always. */
	78
	79	#define DECR_PC_AFTER_BREAK 1
	80
	81	/* Nonzero if instruction at PC is a return instruction. */
	82
	83	#define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 1) == 0xc3)
	84
	85	/* Return 1 if P points to an invalid floating point value.
	86	LEN is the length in bytes -- not relevant on the 386. */
	87
	88	#define INVALID_FLOAT(p, len) (0)
	89
	90	/* Largest integer type */
	91	#define LONGEST long
	92
	93	/* Name of the builtin type for the LONGEST type above. */
	94	#define BUILTIN_TYPE_LONGEST builtin_type_long
	95
	96	/* Say how long (ordinary) registers are. */
	97
	98	#define REGISTER_TYPE long
	99
	100	/* Number of machine registers */
	101
	102	#define NUM_REGS 35
	103
	104	/* Initializer for an array of names of registers.
	105	There should be NUM_REGS strings in this initializer. */
	106
	107	/* the order of the first 8 registers must match the compiler's
	108	* numbering scheme (which is the same as the 386 scheme)
	109	* also, this table must match regmap in i386-pinsn.c.
	110	*/
	111	#define REGISTER_NAMES { "gs", "fs", "es", "ds", \
	112	"edi", "esi", "ebp", "esp", \
	113	"ebx", "edx", "ecx", "eax", \
	114	"retaddr", "trapnum", "errcode", "ip", \
	115	"cs", "ps", "sp", "ss", \
	116	"fst0", "fst1", "fst2", "fst3", \
	117	"fst4", "fst5", "fst6", "fst7", \
	118	"fctrl", "fstat", "ftag", "fip", \
119	"fcs", "fopoff", "fopsel" \
120	}
121
122	/* Register numbers of various important registers.
123	Note that some of these values are "real" register numbers,
124	and correspond to the general registers of the machine,
125	and some are "phony" register numbers which are too large
126	to be actual register numbers as far as the user is concerned
127	but do serve to get the desired values when passed to read_register. */
128
129	#define FP_REGNUM 6 /* Contains address of executing stack frame */
130	#define SP_REGNUM 18 /* Contains address of top of stack */
131	#define PS_REGNUM 17 /* Contains processor status */
132	#define PC_REGNUM 15 /* Contains program counter */
133	#define FP0_REGNUM 20 /* Floating point register 0 */
134	#define FPC_REGNUM 28 /* 80387 control register */
135
136	/* Total amount of space needed to store our copies of the machine's
137	register state, the array `registers'. */
138	#define REGISTER_BYTES (204+810+7*4)
139
140	/* Index within `registers' of the first byte of the space for
141	register N. */
142
143	#define REGISTER_BYTE(N) \
144	((N) >= FPC_REGNUM ? (((N) - FPC_REGNUM) * 4) + 160 \
145	: (N) >= FP0_REGNUM ? (((N) - FP0_REGNUM) * 10) + 80 \
146	: (N) * 4)
147
148	/* Number of bytes of storage in the actual machine representation
149	for register N. */
150
151	#define REGISTER_RAW_SIZE(N) (((unsigned)((N) - FP0_REGNUM)) < 8 ? 10 : 4)
152
153	/* Number of bytes of storage in the program's representation
154	for register N. */
155
156	#define REGISTER_VIRTUAL_SIZE(N) (((unsigned)((N) - FP0_REGNUM)) < 8 ? 8 : 4)
157
158	/* Largest value REGISTER_RAW_SIZE can have. */
159
160	#define MAX_REGISTER_RAW_SIZE 10
161
162	/* Largest value REGISTER_VIRTUAL_SIZE can have. */
163
164	#define MAX_REGISTER_VIRTUAL_SIZE 8
165
166	/* Nonzero if register N requires conversion
167	from raw format to virtual format. */
168
169	#define REGISTER_CONVERTIBLE(N) (((unsigned)((N) - FP0_REGNUM)) < 8)
170
171	/* Convert data from raw format for register REGNUM
172	to virtual format for register REGNUM. */
173
174	#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) \
175	{ if ((REGNUM) >= FP0_REGNUM && (REGNUM) < FPC_REGNUM) \
176	i387_to_double ((FROM), (TO)); \
177	else \
178	bcopy ((FROM), (TO), 4); }
179
75af490b JG	180	extern void
	181	i387_to_double PARAMS ((char , char ));
	182
dd3b648e RP	183	/* Convert data from virtual format for register REGNUM
	184	to raw format for register REGNUM. */
	185
	186	#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) \
	187	{ if ((REGNUM) >= FP0_REGNUM && (REGNUM) < FPC_REGNUM) \
	188	double_to_i387 ((FROM), (TO)); \
	189	else \
	190	bcopy ((FROM), (TO), 4); }
	191
75af490b JG	192	extern void
	193	double_to_i387 PARAMS ((char , char ));
	194
dd3b648e RP	195	/* Return the GDB type object for the "standard" data type
	196	of data in register N. */
	197
	198	#define REGISTER_VIRTUAL_TYPE(N) \
	199	(((unsigned)((N) - FP0_REGNUM)) < 8 ? builtin_type_double : builtin_type_int)
	200
	201	/* Store the address of the place in which to copy the structure the
	202	subroutine will return. This is called from call_function. */
	203
	204	#define STORE_STRUCT_RETURN(ADDR, SP) \
	205	{ (SP) -= sizeof (ADDR); \
	206	write_memory ((SP), &(ADDR), sizeof (ADDR)); }
	207
	208	/* Extract from an array REGBUF containing the (raw) register state
	209	a function return value of type TYPE, and copy that, in virtual format,
	210	into VALBUF. */
	211
	212	#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
	213	bcopy (REGBUF + REGISTER_BYTE (TYPE_CODE (TYPE) == TYPE_CODE_FLT ? FP0_REGNUM : 11), VALBUF, TYPE_LENGTH (TYPE))
	214
	215	/* Write into appropriate registers a function return value
	216	of type TYPE, given in virtual format. */
	217
	218	#define STORE_RETURN_VALUE(TYPE,VALBUF) \
	219	write_register_bytes (REGISTER_BYTE (TYPE_CODE (TYPE) == TYPE_CODE_FLT ? FP0_REGNUM : 11), VALBUF, TYPE_LENGTH (TYPE))
	220
	221	/* Extract from an array REGBUF containing the (raw) register state
	222	the address in which a function should return its structure value,
	223	as a CORE_ADDR (or an expression that can be used as one). */
	224
	225	#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) ((int )(REGBUF))
	226	\f
	227	/* Describe the pointer in each stack frame to the previous stack frame
	228	(its caller). */
	229
	230	/* FRAME_CHAIN takes a frame's nominal address
5e2e79f8	231	and produces the frame's chain-pointer. */
dd3b648e RP	232
dd3b648e RP	233	#define FRAME_CHAIN(thisframe) \
5e2e79f8	234	(!inside_entry_file ((thisframe)->pc) ? \
dd3b648e RP	235	read_memory_integer ((thisframe)->frame, 4) :\
	236	0)
	237
dd3b648e RP	238	/* Define other aspects of the stack frame. */
	239
	240	/* A macro that tells us whether the function invocation represented
	241	by FI does not have a frame on the stack associated with it. If it
	242	does not, FRAMELESS is set to 1, else 0. */
	243	#define FRAMELESS_FUNCTION_INVOCATION(FI, FRAMELESS) \
	244	{ (FRAMELESS) = frameless_look_for_prologue (FI); }
	245
	246	#define FRAME_SAVED_PC(FRAME) (read_memory_integer ((FRAME)->frame + 4, 4))
	247
	248	#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
	249
	250	#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
	251
	252	/* Return number of args passed to a frame.
	253	Can return -1, meaning no way to tell. */
	254
	255	#define FRAME_NUM_ARGS(numargs, fi) (numargs) = i386_frame_num_args(fi)
	256
75af490b JG	257	#ifdef __STDC__ /* Forward decl's for prototypes */
	258	struct frame_info;
	259	struct frame_saved_regs;
	260	#endif
	261
	262	extern int
	263	i386_frame_num_args PARAMS ((struct frame_info *));
	264
dd3b648e RP	265	/* Return number of bytes at start of arglist that are not really args. */
	266
	267	#define FRAME_ARGS_SKIP 8
	268
	269	/* Put here the code to store, into a struct frame_saved_regs,
	270	the addresses of the saved registers of frame described by FRAME_INFO.
	271	This includes special registers such as pc and fp saved in special
	272	ways in the stack frame. sp is even more special:
	273	the address we return for it IS the sp for the next frame. */
	274
	275	#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
	276	{ i386_frame_find_saved_regs ((frame_info), &(frame_saved_regs)); }
	277
75af490b JG	278	extern void
	279	i386_frame_find_saved_regs PARAMS ((struct frame_info *,
	280	struct frame_saved_regs *));
	281
dd3b648e RP	282	\f
	283	/* Things needed for making the inferior call functions. */
	284
	285	/* Push an empty stack frame, to record the current PC, etc. */
	286
	287	#define PUSH_DUMMY_FRAME { i386_push_dummy_frame (); }
	288
75af490b JG	289	extern void
	290	i386_push_dummy_frame PARAMS ((void));
	291
dd3b648e RP	292	/* Discard from the stack the innermost frame, restoring all registers. */
	293
	294	#define POP_FRAME { i386_pop_frame (); }
	295
75af490b JG	296	extern void
	297	i386_pop_frame PARAMS ((void));
	298
dd3b648e RP	299	/* this is
	300	* call 11223344 (32 bit relative)
	301	* int3
	302	*/
	303
	304	#define CALL_DUMMY { 0x223344e8, 0xcc11 }
	305
	306	#define CALL_DUMMY_LENGTH 8
	307
	308	#define CALL_DUMMY_START_OFFSET 0 /* Start execution at beginning of dummy */
	309
	310	/* Insert the specified number of args and function address
	311	into a call sequence of the above form stored at DUMMYNAME. */
	312
	313	#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
	314	{ \
	315	(int )((char *)(dummyname) + 1) = (int)(fun) - (pc) - 5; \
	316	}