[thirdparty/binutils-gdb.git] / sim / common / sim-config.h

/*  This file is part of the program psim.

    Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>

    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.
 
    */


#ifndef SIM_CONFIG_H
#define SIM_CONFIG_H


/* Host dependant:

   The CPP below defines information about the compilation host.  In
   particular it defines the macro's:

   	WITH_HOST_BYTE_ORDER	The byte order of the host. Could
				be any of LITTLE_ENDIAN, BIG_ENDIAN
				or 0 (unknown).  Those macro's also
				need to be defined.

 */


/* NetBSD:

   NetBSD is easy, everything you could ever want is in a header file
   (well almost :-) */

#if defined(__NetBSD__)
# include <machine/endian.h>
# if (WITH_HOST_BYTE_ORDER == 0)
#  undef WITH_HOST_BYTE_ORDER
#  define WITH_HOST_BYTE_ORDER BYTE_ORDER
# endif
# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER)
#  error "host endian incorrectly configured, check config.h"
# endif
#endif

/* Linux is similarly easy.  */

#if defined(__linux__)
# include <endian.h>
# if defined(__LITTLE_ENDIAN) && !defined(LITTLE_ENDIAN)
#  define LITTLE_ENDIAN __LITTLE_ENDIAN
# endif
# if defined(__BIG_ENDIAN) && !defined(BIG_ENDIAN)
#  define BIG_ENDIAN __BIG_ENDIAN
# endif
# if defined(__BYTE_ORDER) && !defined(BYTE_ORDER)
#  define BYTE_ORDER __BYTE_ORDER
# endif
# if (WITH_HOST_BYTE_ORDER == 0)
#  undef WITH_HOST_BYTE_ORDER
#  define WITH_HOST_BYTE_ORDER BYTE_ORDER
# endif
# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER)
#  error "host endian incorrectly configured, check config.h"
# endif
#endif

/* INSERT HERE - hosts that have available LITTLE_ENDIAN and
   BIG_ENDIAN macro's */


/* Some hosts don't define LITTLE_ENDIAN or BIG_ENDIAN, help them out */

#ifndef LITTLE_ENDIAN
#define LITTLE_ENDIAN 1234
#endif
#ifndef BIG_ENDIAN
#define BIG_ENDIAN 4321
#endif


/* SunOS on SPARC:

   Big endian last time I looked */

#if defined(sparc) || defined(__sparc__)
# if (WITH_HOST_BYTE_ORDER == 0)
#  undef WITH_HOST_BYTE_ORDER
#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
# endif
# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
#  error "sun was big endian last time I looked ..."
# endif
#endif


/* Random x86

   Little endian last time I looked */

#if defined(i386) || defined(i486) || defined(i586) || defined (i686) || defined(__i386__) || defined(__i486__) || defined(__i586__) || defined (__i686__)
# if (WITH_HOST_BYTE_ORDER == 0)
#  undef WITH_HOST_BYTE_ORDER
#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
# endif
# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
#  error "x86 was little endian last time I looked ..."
# endif
#endif

#if (defined (__i486__) || defined (__i586__) || defined (__i686__)) && defined(__GNUC__) && WITH_BSWAP
#undef  htonl
#undef  ntohl
#define htonl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; })
#define ntohl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; })
#endif

/* Power or PowerPC running AIX  */
#if defined(_POWER) && defined(_AIX)
# if (WITH_HOST_BYTE_ORDER == 0)
#  undef WITH_HOST_BYTE_ORDER
#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
# endif
# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
#  error "Power/PowerPC AIX was big endian last time I looked ..."
# endif
#endif

/* Solaris running PowerPC */
#if defined(__PPC) && defined(__sun__)
# if (WITH_HOST_BYTE_ORDER == 0)
#  undef WITH_HOST_BYTE_ORDER
#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
# endif
# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
#  error "Solaris on PowerPCs was little endian last time I looked ..."
# endif
#endif

/* HP/PA */
#if defined(__hppa__)
# if (WITH_HOST_BYTE_ORDER == 0)
#  undef WITH_HOST_BYTE_ORDER
#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
# endif
# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
#  error "HP/PA was big endian last time I looked ..."
# endif
#endif

/* Big endian MIPS */
#if defined(__MIPSEB__)
# if (WITH_HOST_BYTE_ORDER == 0)
#  undef WITH_HOST_BYTE_ORDER
#  define WITH_HOST_BYTE_ORDER BIG_ENDIAN
# endif
# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
#  error "MIPSEB was big endian last time I looked ..."
# endif
#endif

/* Little endian MIPS */
#if defined(__MIPSEL__)
# if (WITH_HOST_BYTE_ORDER == 0)
#  undef WITH_HOST_BYTE_ORDER
#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
# endif
# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
#  error "MIPSEL was little endian last time I looked ..."
# endif
#endif

/* Windows NT */
#if defined(__WIN32__)
# if (WITH_HOST_BYTE_ORDER == 0)
#  undef WITH_HOST_BYTE_ORDER
#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
# endif
# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
#  error "Windows NT was little endian last time I looked ..."
# endif
#endif

/* Alpha running DEC unix */
#if defined(__osf__) && defined(__alpha__)
# if (WITH_HOST_BYTE_ORDER == 0)
#  undef WITH_HOST_BYTE_ORDER
#  define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
# endif
# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
#  error "AXP running DEC unix was little endian last time I looked ..."
# endif
#endif


/* INSERT HERE - additional hosts that do not have LITTLE_ENDIAN and
   BIG_ENDIAN definitions available.  */
\f
/* Until devices and tree properties are sorted out, tell sim-config.c
   not to call the tree_find_foo fns.  */
#define WITH_TREE_PROPERTIES 0


/* endianness of the host/target:

   If the build process is aware (at compile time) of the endianness
   of the host/target it is able to eliminate slower generic endian
   handling code.

   Possible values are 0 (unknown), LITTLE_ENDIAN, BIG_ENDIAN */

#ifndef WITH_HOST_BYTE_ORDER
#define WITH_HOST_BYTE_ORDER		0 /*unknown*/
#endif

#ifndef WITH_TARGET_BYTE_ORDER
#define WITH_TARGET_BYTE_ORDER		0 /*unknown*/
#endif

#ifndef WITH_DEFAULT_TARGET_BYTE_ORDER
#define WITH_DEFAULT_TARGET_BYTE_ORDER 0 /* fatal */
#endif

extern int current_host_byte_order;
#define CURRENT_HOST_BYTE_ORDER (WITH_HOST_BYTE_ORDER \
				 ? WITH_HOST_BYTE_ORDER \
				 : current_host_byte_order)
extern int current_target_byte_order;
#define CURRENT_TARGET_BYTE_ORDER (WITH_TARGET_BYTE_ORDER \
				   ? WITH_TARGET_BYTE_ORDER \
				   : current_target_byte_order)


/* XOR endian.

   In addition to the above, the simulator can support the horrible
   XOR endian mode (as found in the PowerPC and MIPS ISA).  See
   sim-core for more information.

   If WITH_XOR_ENDIAN is non-zero, it specifies the number of bytes
   potentially involved in the XOR munge. A typical value is 8. */

#ifndef WITH_XOR_ENDIAN
#define WITH_XOR_ENDIAN		0
#endif


/* Intel host BSWAP support:

   Whether to use bswap on the 486 and pentiums rather than the 386
   sequence that uses xchgb/rorl/xchgb */
#ifndef WITH_BSWAP
#define	WITH_BSWAP 0
#endif


/* SMP support:

   Sets a limit on the number of processors that can be simulated.  If
   WITH_SMP is set to zero (0), the simulator is restricted to
   suporting only one processor (and as a consequence leaves the SMP
   code out of the build process).

   The actual number of processors is taken from the device
   /options/smp@<nr-cpu> */

#if defined (WITH_SMP) && (WITH_SMP > 0)
#define MAX_NR_PROCESSORS		WITH_SMP
#endif

#ifndef MAX_NR_PROCESSORS
#define MAX_NR_PROCESSORS		1
#endif


/* Size of target word, address and OpenFirmware Cell:

   The target word size is determined by the natural size of its
   reginsters.

   On most hosts, the address and cell are the same size as a target
   word.  */

#ifndef WITH_TARGET_WORD_BITSIZE
#define WITH_TARGET_WORD_BITSIZE        32
#endif

#ifndef WITH_TARGET_ADDRESS_BITSIZE
#define WITH_TARGET_ADDRESS_BITSIZE	WITH_TARGET_WORD_BITSIZE
#endif

#ifndef WITH_TARGET_CELL_BITSIZE
#define WITH_TARGET_CELL_BITSIZE	WITH_TARGET_WORD_BITSIZE
#endif

#ifndef WITH_TARGET_FLOATING_POINT_BITSIZE
#define WITH_TARGET_FLOATING_POINT_BITSIZE 64
#endif


/* Most significant bit of target:

   Set this according to your target's bit numbering convention.  For
   the PowerPC it is zero, for many other targets it is 31 or 63.

   For targets that can both have either 32 or 64 bit words and number
   MSB as 31, 63.  Define this to be (WITH_TARGET_WORD_BITSIZE - 1) */

#ifndef WITH_TARGET_WORD_MSB
#define WITH_TARGET_WORD_MSB            0
#endif


/* Program environment:

   Three environments are available - UEA (user), VEA (virtual) and
   OEA (perating).  The former two are environment that users would
   expect to see (VEA includes things like coherency and the time
   base) while OEA is what an operating system expects to see.  By
   setting these to specific values, the build process is able to
   eliminate non relevent environment code.

   STATE_ENVIRONMENT(sd) specifies which of vea or oea is required for
   the current runtime.

   ALL_ENVIRONMENT is used during configuration as a value for
   WITH_ENVIRONMENT to indicate the choice is runtime selectable.
   The default is then USER_ENVIRONMENT [since allowing the user to choose
   the default at configure time seems like featuritis and since people using
   OPERATING_ENVIRONMENT have more to worry about than selecting the
   default].
   ALL_ENVIRONMENT is also used to set STATE_ENVIRONMENT to the
   "uninitialized" state.  */

enum sim_environment {
  ALL_ENVIRONMENT,
  USER_ENVIRONMENT,
  VIRTUAL_ENVIRONMENT,
  OPERATING_ENVIRONMENT
};

/* If the simulator specified SIM_AC_OPTION_ENVIRONMENT, indicate so.  */
#ifdef WITH_ENVIRONMENT
#define SIM_HAVE_ENVIRONMENT
#endif

/* If the simulator doesn't specify SIM_AC_OPTION_ENVIRONMENT in its
   configure.in, the only supported environment is the user environment.  */
#ifndef WITH_ENVIRONMENT
#define WITH_ENVIRONMENT USER_ENVIRONMENT
#endif

#define DEFAULT_ENVIRONMENT (WITH_ENVIRONMENT != ALL_ENVIRONMENT \
			     ? WITH_ENVIRONMENT \
			     : USER_ENVIRONMENT)


/* Callback & Modulo Memory.

   Core includes a builtin memory type (raw_memory) that is
   implemented using an array.  raw_memory does not require any
   additional functions etc.

   Callback memory is where the core calls a core device for the data
   it requires.  Callback memory can be layered using priorities.

   Modulo memory is a variation on raw_memory where ADDRESS & (MODULO
   - 1) is used as the index into the memory array.

   The OEA model uses callback memory for devices.

   The VEA model uses callback memory to capture `page faults'.

   BTW, while raw_memory could have been implemented as a callback,
   profiling has shown that there is a biger win (at least for the
   x86) in eliminating a function call for the most common
   (raw_memory) case. */

#ifndef WITH_CALLBACK_MEMORY
#define WITH_CALLBACK_MEMORY		1
#endif

#ifndef WITH_MODULO_MEMORY
#define WITH_MODULO_MEMORY              0
#endif


/* Alignment:

   A processor architecture may or may not handle miss aligned
   transfers.

   As alternatives: both little and big endian modes take an exception
   (STRICT_ALIGNMENT); big and little endian models handle mis aligned
   transfers (NONSTRICT_ALIGNMENT); or the address is forced into
   alignment using a mask (FORCED_ALIGNMENT).

   Mixed alignment should be specified when the simulator needs to be
   able to change the alignment requirements on the fly (eg for
   bi-endian support). */

enum sim_alignments {
  MIXED_ALIGNMENT,
  NONSTRICT_ALIGNMENT,
  STRICT_ALIGNMENT,
  FORCED_ALIGNMENT,
};

extern enum sim_alignments current_alignment;

#if !defined (WITH_ALIGNMENT)
#define WITH_ALIGNMENT 0
#endif

#if !defined (WITH_DEFAULT_ALIGNMENT)
#define WITH_DEFAULT_ALIGNMENT 0 /* fatal */
#endif


#define CURRENT_ALIGNMENT (WITH_ALIGNMENT \
			   ? WITH_ALIGNMENT \
			   : current_alignment)


/* Floating point suport:

   Should the processor trap for all floating point instructions (as
   if the hardware wasn't implemented) or implement the floating point
   instructions directly. */

#if defined (WITH_FLOATING_POINT)

#define SOFT_FLOATING_POINT		1
#define HARD_FLOATING_POINT		2

extern int current_floating_point;
#define CURRENT_FLOATING_POINT (WITH_FLOATING_POINT \
				? WITH_FLOATING_POINT \
				: current_floating_point)

#endif


/* Engine module.

   Use the common start/stop/restart framework (sim-engine).
   Simulators using the other modules but not the engine should define
   WITH_ENGINE=0. */

#ifndef WITH_ENGINE
#define WITH_ENGINE			1
#endif


/* Debugging:

   Control the inclusion of debugging code.
   Debugging is only turned on in rare circumstances [say during development]
   and is not intended to be turned on otherwise.  */

#ifndef WITH_DEBUG
#define WITH_DEBUG			0
#endif

/* Include the tracing code.  Disabling this eliminates all tracing
   code */

#ifndef WITH_TRACE
#define WITH_TRACE                      (-1)
#endif

/* Include the profiling code.  Disabling this eliminates all profiling
   code.  */

#ifndef WITH_PROFILE
#define WITH_PROFILE			(-1)
#endif


/* include code that checks assertions scattered through out the
   program */

#ifndef WITH_ASSERT
#define WITH_ASSERT			1
#endif


/* Whether to check instructions for reserved bits being set */

/* #define WITH_RESERVED_BITS		1 */


/* include monitoring code */

#define MONITOR_INSTRUCTION_ISSUE	1
#define MONITOR_LOAD_STORE_UNIT		2
/* do not define WITH_MON by default */
#define DEFAULT_WITH_MON		(MONITOR_LOAD_STORE_UNIT \
					 | MONITOR_INSTRUCTION_ISSUE)


/* Current CPU model (models are in the generated models.h include file)  */
#ifndef WITH_MODEL
#define WITH_MODEL			0
#endif

#define CURRENT_MODEL (WITH_MODEL	\
		       ? WITH_MODEL	\
		       : current_model)

#ifndef WITH_DEFAULT_MODEL
#define WITH_DEFAULT_MODEL		DEFAULT_MODEL
#endif

#define MODEL_ISSUE_IGNORE		(-1)
#define MODEL_ISSUE_PROCESS		1

#ifndef WITH_MODEL_ISSUE
#define WITH_MODEL_ISSUE		0
#endif

extern int current_model_issue;
#define CURRENT_MODEL_ISSUE (WITH_MODEL_ISSUE	\
			     ? WITH_MODEL_ISSUE	\
			     : current_model_issue)


/* Whether or not input/output just uses stdio, or uses printf_filtered for
   output, and polling input for input.  */

#define DONT_USE_STDIO			2
#define DO_USE_STDIO			1

#ifndef WITH_STDIO
#define WITH_STDIO			0
#endif

extern int current_stdio;
#define CURRENT_STDIO (WITH_STDIO	\
		       ? WITH_STDIO     \
		       : current_stdio)


/* Specify that configured calls pass parameters in registers when the
   convention is that they are placed on the stack */

#ifndef WITH_REGPARM
#define WITH_REGPARM                   0
#endif

/* Specify that configured calls use an alternative calling mechanism */

#ifndef WITH_STDCALL
#define WITH_STDCALL                   0
#endif


/* Set the default state configuration, before parsing argv.  */

extern void sim_config_default (SIM_DESC sd);

/* Complete and verify the simulator configuration.  */

extern SIM_RC sim_config (SIM_DESC sd);

/* Print the simulator configuration.  */

extern void print_sim_config (SIM_DESC sd);


#endif
Commit	Line	Data
c906108c SS	1	/* This file is part of the program psim.
	2
	3	Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
	4
	5	This program is free software; you can redistribute it and/or modify
	6	it under the terms of the GNU General Public License as published by
	7	the Free Software Foundation; either version 2 of the License, or
	8	(at your option) any later version.
	9
	10	This program is distributed in the hope that it will be useful,
	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	GNU General Public License for more details.
	14
	15	You should have received a copy of the GNU General Public License
	16	along with this program; if not, write to the Free Software
	17	Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
	18
	19	*/
	20
	21
	22	#ifndef SIM_CONFIG_H
	23	#define SIM_CONFIG_H
	24
	25
	26	/* Host dependant:
	27
	28	The CPP below defines information about the compilation host. In
	29	particular it defines the macro's:
	30
	31	WITH_HOST_BYTE_ORDER The byte order of the host. Could
	32	be any of LITTLE_ENDIAN, BIG_ENDIAN
	33	or 0 (unknown). Those macro's also
	34	need to be defined.
	35
	36	*/
	37
	38
	39	/* NetBSD:
	40
	41	NetBSD is easy, everything you could ever want is in a header file
	42	(well almost :-) */
	43
	44	#if defined(__NetBSD__)
	45	# include <machine/endian.h>
	46	# if (WITH_HOST_BYTE_ORDER == 0)
	47	# undef WITH_HOST_BYTE_ORDER
	48	# define WITH_HOST_BYTE_ORDER BYTE_ORDER
	49	# endif
	50	# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER)
	51	# error "host endian incorrectly configured, check config.h"
	52	# endif
	53	#endif
	54
	55	/* Linux is similarly easy. */
	56
	57	#if defined(__linux__)
	58	# include <endian.h>
	59	# if defined(__LITTLE_ENDIAN) && !defined(LITTLE_ENDIAN)
	60	# define LITTLE_ENDIAN __LITTLE_ENDIAN
	61	# endif
	62	# if defined(__BIG_ENDIAN) && !defined(BIG_ENDIAN)
	63	# define BIG_ENDIAN __BIG_ENDIAN
	64	# endif
65	# if defined(__BYTE_ORDER) && !defined(BYTE_ORDER)
66	# define BYTE_ORDER __BYTE_ORDER
67	# endif
68	# if (WITH_HOST_BYTE_ORDER == 0)
69	# undef WITH_HOST_BYTE_ORDER
70	# define WITH_HOST_BYTE_ORDER BYTE_ORDER
71	# endif
72	# if (BYTE_ORDER != WITH_HOST_BYTE_ORDER)
73	# error "host endian incorrectly configured, check config.h"
74	# endif
75	#endif
76
77	/* INSERT HERE - hosts that have available LITTLE_ENDIAN and
78	BIG_ENDIAN macro's */
79
80
81	/* Some hosts don't define LITTLE_ENDIAN or BIG_ENDIAN, help them out */
82
83	#ifndef LITTLE_ENDIAN
84	#define LITTLE_ENDIAN 1234
85	#endif
86	#ifndef BIG_ENDIAN
87	#define BIG_ENDIAN 4321
88	#endif
89
90
91	/* SunOS on SPARC:
92
93	Big endian last time I looked */
94
95	#if defined(sparc) \|\| defined(__sparc__)
96	# if (WITH_HOST_BYTE_ORDER == 0)
97	# undef WITH_HOST_BYTE_ORDER
98	# define WITH_HOST_BYTE_ORDER BIG_ENDIAN
99	# endif
100	# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
101	# error "sun was big endian last time I looked ..."
102	# endif
103	#endif
104
105
106	/* Random x86
107
108	Little endian last time I looked */
109
110	#if defined(i386) \|\| defined(i486) \|\| defined(i586) \|\| defined (i686) \|\| defined(__i386__) \|\| defined(__i486__) \|\| defined(__i586__) \|\| defined (__i686__)
111	# if (WITH_HOST_BYTE_ORDER == 0)
112	# undef WITH_HOST_BYTE_ORDER
113	# define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
114	# endif
115	# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
116	# error "x86 was little endian last time I looked ..."
117	# endif
118	#endif
119
120	#if (defined (__i486__) \|\| defined (__i586__) \|\| defined (__i686__)) && defined(__GNUC__) && WITH_BSWAP
121	#undef htonl
122	#undef ntohl
123	#define htonl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; })
124	#define ntohl(IN) __extension__ ({ int _out; __asm__ ("bswap %0" : "=r" (_out) : "0" (IN)); _out; })
125	#endif
126
127	/* Power or PowerPC running AIX */
128	#if defined(_POWER) && defined(_AIX)
129	# if (WITH_HOST_BYTE_ORDER == 0)
130	# undef WITH_HOST_BYTE_ORDER
131	# define WITH_HOST_BYTE_ORDER BIG_ENDIAN
132	# endif
133	# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
134	# error "Power/PowerPC AIX was big endian last time I looked ..."
135	# endif
136	#endif
137
138	/* Solaris running PowerPC */
139	#if defined(__PPC) && defined(__sun__)
140	# if (WITH_HOST_BYTE_ORDER == 0)
141	# undef WITH_HOST_BYTE_ORDER
142	# define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
143	# endif
144	# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
145	# error "Solaris on PowerPCs was little endian last time I looked ..."
146	# endif
147	#endif
148
149	/* HP/PA */
150	#if defined(__hppa__)
151	# if (WITH_HOST_BYTE_ORDER == 0)
152	# undef WITH_HOST_BYTE_ORDER
153	# define WITH_HOST_BYTE_ORDER BIG_ENDIAN
154	# endif
155	# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
156	# error "HP/PA was big endian last time I looked ..."
157	# endif
158	#endif
159
160	/* Big endian MIPS */
161	#if defined(__MIPSEB__)
162	# if (WITH_HOST_BYTE_ORDER == 0)
163	# undef WITH_HOST_BYTE_ORDER
164	# define WITH_HOST_BYTE_ORDER BIG_ENDIAN
165	# endif
166	# if (WITH_HOST_BYTE_ORDER != BIG_ENDIAN)
167	# error "MIPSEB was big endian last time I looked ..."
168	# endif
169	#endif
170
171	/* Little endian MIPS */
172	#if defined(__MIPSEL__)
173	# if (WITH_HOST_BYTE_ORDER == 0)
174	# undef WITH_HOST_BYTE_ORDER
175	# define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
176	# endif
177	# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
178	# error "MIPSEL was little endian last time I looked ..."
179	# endif
180	#endif
181
182	/* Windows NT */
183	#if defined(__WIN32__)
184	# if (WITH_HOST_BYTE_ORDER == 0)
185	# undef WITH_HOST_BYTE_ORDER
186	# define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
187	# endif
188	# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
189	# error "Windows NT was little endian last time I looked ..."
190	# endif
191	#endif
192
193	/* Alpha running DEC unix */
194	#if defined(__osf__) && defined(__alpha__)
195	# if (WITH_HOST_BYTE_ORDER == 0)
196	# undef WITH_HOST_BYTE_ORDER
197	# define WITH_HOST_BYTE_ORDER LITTLE_ENDIAN
198	# endif
199	# if (WITH_HOST_BYTE_ORDER != LITTLE_ENDIAN)
200	# error "AXP running DEC unix was little endian last time I looked ..."
201	# endif
202	#endif
203
204
205	/* INSERT HERE - additional hosts that do not have LITTLE_ENDIAN and
206	BIG_ENDIAN definitions available. */
207	\f
208	/* Until devices and tree properties are sorted out, tell sim-config.c
209	not to call the tree_find_foo fns. */
210	#define WITH_TREE_PROPERTIES 0
211
212
213	/* endianness of the host/target:
214
215	If the build process is aware (at compile time) of the endianness
216	of the host/target it is able to eliminate slower generic endian
217	handling code.
218
219	Possible values are 0 (unknown), LITTLE_ENDIAN, BIG_ENDIAN */
220
221	#ifndef WITH_HOST_BYTE_ORDER
222	#define WITH_HOST_BYTE_ORDER 0 /unknown/
223	#endif
224
225	#ifndef WITH_TARGET_BYTE_ORDER
226	#define WITH_TARGET_BYTE_ORDER 0 /unknown/
227	#endif
228
229	#ifndef WITH_DEFAULT_TARGET_BYTE_ORDER
230	#define WITH_DEFAULT_TARGET_BYTE_ORDER 0 /* fatal */
231	#endif
232
233	extern int current_host_byte_order;
234	#define CURRENT_HOST_BYTE_ORDER (WITH_HOST_BYTE_ORDER \
235	? WITH_HOST_BYTE_ORDER \
236	: current_host_byte_order)
237	extern int current_target_byte_order;
238	#define CURRENT_TARGET_BYTE_ORDER (WITH_TARGET_BYTE_ORDER \
239	? WITH_TARGET_BYTE_ORDER \
240	: current_target_byte_order)
241
242
243
244	/* XOR endian.
245
246	In addition to the above, the simulator can support the horrible
247	XOR endian mode (as found in the PowerPC and MIPS ISA). See
248	sim-core for more information.
249
250	If WITH_XOR_ENDIAN is non-zero, it specifies the number of bytes
251	potentially involved in the XOR munge. A typical value is 8. */
252
253	#ifndef WITH_XOR_ENDIAN
254	#define WITH_XOR_ENDIAN 0
255	#endif
256
257
258
259	/* Intel host BSWAP support:
260
261	Whether to use bswap on the 486 and pentiums rather than the 386
262	sequence that uses xchgb/rorl/xchgb */
263	#ifndef WITH_BSWAP
264	#define WITH_BSWAP 0
265	#endif
266
267
268
269	/* SMP support:
270
271	Sets a limit on the number of processors that can be simulated. If
272	WITH_SMP is set to zero (0), the simulator is restricted to
273	suporting only one processor (and as a consequence leaves the SMP
274	code out of the build process).
275
276	The actual number of processors is taken from the device
277	/options/smp@<nr-cpu> */
278
279	#if defined (WITH_SMP) && (WITH_SMP > 0)
280	#define MAX_NR_PROCESSORS WITH_SMP
281	#endif
282
283	#ifndef MAX_NR_PROCESSORS
284	#define MAX_NR_PROCESSORS 1
285	#endif
286
287
288	/* Size of target word, address and OpenFirmware Cell:
289
290	The target word size is determined by the natural size of its
291	reginsters.
292
293	On most hosts, the address and cell are the same size as a target
294	word. */
295
296	#ifndef WITH_TARGET_WORD_BITSIZE
297	#define WITH_TARGET_WORD_BITSIZE 32
298	#endif
299
300	#ifndef WITH_TARGET_ADDRESS_BITSIZE
301	#define WITH_TARGET_ADDRESS_BITSIZE WITH_TARGET_WORD_BITSIZE
302	#endif
303
304	#ifndef WITH_TARGET_CELL_BITSIZE
305	#define WITH_TARGET_CELL_BITSIZE WITH_TARGET_WORD_BITSIZE
306	#endif
307
308	#ifndef WITH_TARGET_FLOATING_POINT_BITSIZE
309	#define WITH_TARGET_FLOATING_POINT_BITSIZE 64
310	#endif
311
312
313
314	/* Most significant bit of target:
315
316	Set this according to your target's bit numbering convention. For
317	the PowerPC it is zero, for many other targets it is 31 or 63.
318
319	For targets that can both have either 32 or 64 bit words and number
320	MSB as 31, 63. Define this to be (WITH_TARGET_WORD_BITSIZE - 1) */
321
322	#ifndef WITH_TARGET_WORD_MSB
323	#define WITH_TARGET_WORD_MSB 0
324	#endif
325
326
327
328	/* Program environment:
329
330	Three environments are available - UEA (user), VEA (virtual) and
331	OEA (perating). The former two are environment that users would
332	expect to see (VEA includes things like coherency and the time
333	base) while OEA is what an operating system expects to see. By
334	setting these to specific values, the build process is able to
335	eliminate non relevent environment code.
336
337	STATE_ENVIRONMENT(sd) specifies which of vea or oea is required for
338	the current runtime.
339
340	ALL_ENVIRONMENT is used during configuration as a value for
341	WITH_ENVIRONMENT to indicate the choice is runtime selectable.
342	The default is then USER_ENVIRONMENT [since allowing the user to choose
343	the default at configure time seems like featuritis and since people using
344	OPERATING_ENVIRONMENT have more to worry about than selecting the
345	default].
346	ALL_ENVIRONMENT is also used to set STATE_ENVIRONMENT to the
347	"uninitialized" state. */
348
349	enum sim_environment {
350	ALL_ENVIRONMENT,
351	USER_ENVIRONMENT,
352	VIRTUAL_ENVIRONMENT,
353	OPERATING_ENVIRONMENT
354	};
355
356	/* If the simulator specified SIM_AC_OPTION_ENVIRONMENT, indicate so. */
357	#ifdef WITH_ENVIRONMENT
358	#define SIM_HAVE_ENVIRONMENT
359	#endif
360
361	/* If the simulator doesn't specify SIM_AC_OPTION_ENVIRONMENT in its
362	configure.in, the only supported environment is the user environment. */
363	#ifndef WITH_ENVIRONMENT
364	#define WITH_ENVIRONMENT USER_ENVIRONMENT
365	#endif
366
367	#define DEFAULT_ENVIRONMENT (WITH_ENVIRONMENT != ALL_ENVIRONMENT \
368	? WITH_ENVIRONMENT \
369	: USER_ENVIRONMENT)
370
371
372	/* Callback & Modulo Memory.
373
374	Core includes a builtin memory type (raw_memory) that is
375	implemented using an array. raw_memory does not require any
376	additional functions etc.
377
378	Callback memory is where the core calls a core device for the data
379	it requires. Callback memory can be layered using priorities.
380
381	Modulo memory is a variation on raw_memory where ADDRESS & (MODULO
382	- 1) is used as the index into the memory array.
383
384	The OEA model uses callback memory for devices.
385
386	The VEA model uses callback memory to capture `page faults'.
387
388	BTW, while raw_memory could have been implemented as a callback,
389	profiling has shown that there is a biger win (at least for the
390	x86) in eliminating a function call for the most common
391	(raw_memory) case. */
392
393	#ifndef WITH_CALLBACK_MEMORY
394	#define WITH_CALLBACK_MEMORY 1
395	#endif
396
397	#ifndef WITH_MODULO_MEMORY
398	#define WITH_MODULO_MEMORY 0
399	#endif
400
401
402
403	/* Alignment:
404
405	A processor architecture may or may not handle miss aligned
406	transfers.
407
408	As alternatives: both little and big endian modes take an exception
409	(STRICT_ALIGNMENT); big and little endian models handle mis aligned
410	transfers (NONSTRICT_ALIGNMENT); or the address is forced into
411	alignment using a mask (FORCED_ALIGNMENT).
412
413	Mixed alignment should be specified when the simulator needs to be
414	able to change the alignment requirements on the fly (eg for
415	bi-endian support). */
416
417	enum sim_alignments {
418	MIXED_ALIGNMENT,
419	NONSTRICT_ALIGNMENT,
420	STRICT_ALIGNMENT,
421	FORCED_ALIGNMENT,
422	};
423
424	extern enum sim_alignments current_alignment;
425
426	#if !defined (WITH_ALIGNMENT)
427	#define WITH_ALIGNMENT 0
428	#endif
429
430	#if !defined (WITH_DEFAULT_ALIGNMENT)
431	#define WITH_DEFAULT_ALIGNMENT 0 /* fatal */
432	#endif
433
434
435
436
437	#define CURRENT_ALIGNMENT (WITH_ALIGNMENT \
438	? WITH_ALIGNMENT \
439	: current_alignment)
440
441
442
443	/* Floating point suport:
444
445	Should the processor trap for all floating point instructions (as
446	if the hardware wasn't implemented) or implement the floating point
447	instructions directly. */
448
449	#if defined (WITH_FLOATING_POINT)
450
451	#define SOFT_FLOATING_POINT 1
452	#define HARD_FLOATING_POINT 2
453
454	extern int current_floating_point;
455	#define CURRENT_FLOATING_POINT (WITH_FLOATING_POINT \
456	? WITH_FLOATING_POINT \
457	: current_floating_point)
458
459	#endif
460
461
462
463	/* Engine module.
464
465	Use the common start/stop/restart framework (sim-engine).
466	Simulators using the other modules but not the engine should define
467	WITH_ENGINE=0. */
468
469	#ifndef WITH_ENGINE
470	#define WITH_ENGINE 1
471	#endif
472
473
474
475	/* Debugging:
476
477	Control the inclusion of debugging code.
478	Debugging is only turned on in rare circumstances [say during development]
479	and is not intended to be turned on otherwise. */
480
481	#ifndef WITH_DEBUG
482	#define WITH_DEBUG 0
483	#endif
484
485	/* Include the tracing code. Disabling this eliminates all tracing
486	code */
487
488	#ifndef WITH_TRACE
489	#define WITH_TRACE (-1)
490	#endif
491
492	/* Include the profiling code. Disabling this eliminates all profiling
493	code. */
494
495	#ifndef WITH_PROFILE
496	#define WITH_PROFILE (-1)
497	#endif
498
499
500	/* include code that checks assertions scattered through out the
501	program */
502
503	#ifndef WITH_ASSERT
504	#define WITH_ASSERT 1
505	#endif
506
507
508	/* Whether to check instructions for reserved bits being set */
509
510	/* #define WITH_RESERVED_BITS 1 */
511
512
513
514	/* include monitoring code */
515
516	#define MONITOR_INSTRUCTION_ISSUE 1
517	#define MONITOR_LOAD_STORE_UNIT 2
518	/* do not define WITH_MON by default */
519	#define DEFAULT_WITH_MON (MONITOR_LOAD_STORE_UNIT \
520	\| MONITOR_INSTRUCTION_ISSUE)
521
522
523	/* Current CPU model (models are in the generated models.h include file) */
524	#ifndef WITH_MODEL
525	#define WITH_MODEL 0
526	#endif
527
528	#define CURRENT_MODEL (WITH_MODEL \
529	? WITH_MODEL \
530	: current_model)
531
532	#ifndef WITH_DEFAULT_MODEL
533	#define WITH_DEFAULT_MODEL DEFAULT_MODEL
534	#endif
535
536	#define MODEL_ISSUE_IGNORE (-1)
537	#define MODEL_ISSUE_PROCESS 1
538
539	#ifndef WITH_MODEL_ISSUE
540	#define WITH_MODEL_ISSUE 0
541	#endif
542
543	extern int current_model_issue;
544	#define CURRENT_MODEL_ISSUE (WITH_MODEL_ISSUE \
545	? WITH_MODEL_ISSUE \
546	: current_model_issue)
547
548
549
550	/* Whether or not input/output just uses stdio, or uses printf_filtered for
551	output, and polling input for input. */
552
553	#define DONT_USE_STDIO 2
554	#define DO_USE_STDIO 1
555
556	#ifndef WITH_STDIO
557	#define WITH_STDIO 0
558	#endif
559
560	extern int current_stdio;
561	#define CURRENT_STDIO (WITH_STDIO \
562	? WITH_STDIO \
563	: current_stdio)
564
565
566
567	/* Specify that configured calls pass parameters in registers when the
568	convention is that they are placed on the stack */
569
570	#ifndef WITH_REGPARM
571	#define WITH_REGPARM 0
572	#endif
573
574	/* Specify that configured calls use an alternative calling mechanism */
575
576	#ifndef WITH_STDCALL
577	#define WITH_STDCALL 0
578	#endif
579
580
581	/* Set the default state configuration, before parsing argv. */
582
583	extern void sim_config_default (SIM_DESC sd);
584
585	/* Complete and verify the simulator configuration. */
586
587	extern SIM_RC sim_config (SIM_DESC sd);
588
589	/* Print the simulator configuration. */
590
591	extern void print_sim_config (SIM_DESC sd);
592
593
594	#endif