[bpt/emacs.git] / src / m / ibmrt-aix.h

/* RTPC AIX machine/system dependent defines
   Copyright (C) 1988, 1999, 2002 Free Software Foundation, Inc.

This file is part of GNU Emacs.

GNU Emacs 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, or (at your option)
any later version.

GNU Emacs 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 GNU Emacs; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */


/* The following line tells the configuration script what sort of
   operating system this machine is likely to run.
   USUAL-OPSYS="usg5-2-2"  */

/* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word
   is the most significant byte.  */

#define WORDS_BIG_ENDIAN

/* Define NO_ARG_ARRAY if you cannot take the address of the first of a
 * group of arguments and treat it as an array of the arguments.  */

#define NO_ARG_ARRAY

/* Now define a symbol for the cpu type, if your compiler
   does not define it automatically.  */

#ifndef IBMAIX
#define IBMAIX
#endif

/* Use type int rather than a union, to represent Lisp_Object */
/* This is desirable for most machines.  */

#define NO_UNION_TYPE

/* No load average information appears in the AIX kernel.  VRM has this
   info, and if anyone desires they should fix fns.c to get it out of VRM */

/* Define CANNOT_DUMP on machines where unexec does not work.
   Then the function dump-emacs will not be defined
   and temacs will do (load "loadup") automatically unless told otherwise.  */

/* #define CANNOT_DUMP */

/* Define addresses, macros, change some setup for dump */

#undef COFF
#define NO_REMAP
#undef static
  /* Since NO_REMAP, problem with statics doesn't exist */

#define TEXT_START 0x10000000
#define TEXT_END 0
#define DATA_START 0x20000000
#define DATA_END 0

/* The data segment in this machine always starts at address 0x20000000.
   An address of data cannot be stored correctly in a Lisp object;
   we always lose the high bits.  We must tell XPNTR to add them back.  */

#define DATA_SEG_BITS 0x20000000

#define N_BADMAG(x) BADMAG(x)
#define N_TXTOFF(x) A_TEXTPOS(x)
#define N_SYMOFF(x) A_SYMPOS(x)
#define A_TEXT_OFFSET(HDR) sizeof(HDR)
#define ADJUST_EXEC_HEADER \
    unexec_text_start += sizeof(hdr); \
    unexec_data_start = ohdr.a_dbase
#undef ADDR_CORRECT
#define ADDR_CORRECT(x) ((int)(x))

/* This is the offset of the executable's text, from the start of the file.  */

#define A_TEXT_SEEK(HDR) (N_TXTOFF (hdr) + sizeof (hdr))

/* AIX has PTYs, so define here, along with macros needed to make them work. */

#define HAVE_PTYS
#define PTY_ITERATION for (i=0; i<256; i++)
#define PTY_NAME_SPRINTF sprintf (ptyname, "/dev/ptc%d", i);

#define PTY_TTY_NAME_SPRINTF				\
{ /* Check that server side not already open */		\
  if ((ioctl (*ptyv, PTYSTATUS, 0) & 0xFFFF) != 0)	\
    {							\
      emacs_close (*ptyv);				\
      continue;						\
    }							\
  /* And finally to be sure we can open it later */	\
  sprintf (ptyname, "/dev/pts%d", i);			\
  signal (SIGHUP,SIG_IGN);				\
}     /* ignore hangup at process end */

/* TIOCNOTTY doesn't occur on AIX, but the rest
   of the conditionalized code in process.c does
   the right thing if we fake this out.  */
#define TIOCNOTTY IOCTYPE

/* AIX has IPC. It also has sockets, and either can be used for client/server.
   I would suggest the client/server code be changed to use HAVE_SOCKETS rather
   than BSD_SYSTEM as the conditional if sockets provide any advantages. */

#define HAVE_SYSVIPC

/* AIX has sockets */

#define HAVE_SOCKETS
/* #define SKTPAIR */ /* SKTPAIR works, but what is advantage over pipes? */

/* Specify the font for X to use.  */

#define X_DEFAULT_FONT "Rom14.500"

/* Here override various assumptions in ymakefile */

/* On AIX 2.2.1, use these definitions instead
#define C_SWITCH_MACHINE -I/usr/include -Nn2000
#define LIBS_MACHINE -lX -lrts
*/

#define C_SWITCH_MACHINE -I/usr/include -I/usr/include/bsd -Nn2000
#define LIBS_MACHINE -lXMenu -lX -lsock -lbsd -lrts

#define OBJECTS_MACHINE hftctl.o
#define START_FILES /lib/crt0.o
/* -lXMenu, -lX must precede -lsock, -lbsd */
#define LD_SWITCH_MACHINE -n -T0x10000000 -K -e start

#if 0 /* I refuse to promulgate a recommendation that would make
         users unable to debug - RMS.  */
/* delete the following line to foil optimization, enable debugging */
#define C_DEBUG_SWITCH -O
#endif


/* Setup to do some things BSD way - these won't work previous to AIX 2.1.2 */

#include </usr/include/bsd/BSDtoAIX.h>
#define BSTRING

/* AIX utimes allegedly causes SIGSEGV.  */
#undef HAVE_UTIMES /* override configuration decision */

/* AIX defines FIONREAD, but it does not work.  */
#define BROKEN_FIONREAD

/* rocky@watson.ibm.com says this is needed.  */
#define HAVE_FTIME

/* arch-tag: eea85307-0ca9-4a9c-a4f6-89fad7591d28
   (do not change this comment) */
Commit	Line	Data
30fe07a6	1	/* RTPC AIX machine/system dependent defines
d8f6d720	2	Copyright (C) 1988, 1999, 2002 Free Software Foundation, Inc.
30fe07a6 JB	3
	4	This file is part of GNU Emacs.
	5
	6	GNU Emacs is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
17385adc	8	the Free Software Foundation; either version 2, or (at your option)
30fe07a6 JB	9	any later version.
	10
	11	GNU Emacs is distributed in the hope that it will be useful,
	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
	17	along with GNU Emacs; see the file COPYING. If not, write to
3b7ad313 EN	18	the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
3b7ad313 EN	19	Boston, MA 02111-1307, USA. */
30fe07a6 JB	20
30fe07a6 JB	21
177c0ea7	22	/* The following line tells the configuration script what sort of
30fe07a6 JB	23	operating system this machine is likely to run.
	24	USUAL-OPSYS="usg5-2-2" */
	25
74d3f806 KH	26	/* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word
	27	is the most significant byte. */
	28
	29	#define WORDS_BIG_ENDIAN
	30
30fe07a6 JB	31	/* Define NO_ARG_ARRAY if you cannot take the address of the first of a
	32	* group of arguments and treat it as an array of the arguments. */
	33
	34	#define NO_ARG_ARRAY
	35
30fe07a6 JB	36	/* Now define a symbol for the cpu type, if your compiler
	37	does not define it automatically. */
	38
	39	#ifndef IBMAIX
	40	#define IBMAIX
	41	#endif
	42
	43	/* Use type int rather than a union, to represent Lisp_Object */
	44	/* This is desirable for most machines. */
	45
	46	#define NO_UNION_TYPE
	47
	48	/* No load average information appears in the AIX kernel. VRM has this
	49	info, and if anyone desires they should fix fns.c to get it out of VRM */
	50
	51	/* Define CANNOT_DUMP on machines where unexec does not work.
	52	Then the function dump-emacs will not be defined
	53	and temacs will do (load "loadup") automatically unless told otherwise. */
	54
	55	/* #define CANNOT_DUMP */
	56
	57	/* Define addresses, macros, change some setup for dump */
	58
	59	#undef COFF
	60	#define NO_REMAP
	61	#undef static
	62	/* Since NO_REMAP, problem with statics doesn't exist */
	63
	64	#define TEXT_START 0x10000000
	65	#define TEXT_END 0
	66	#define DATA_START 0x20000000
	67	#define DATA_END 0
	68
	69	/* The data segment in this machine always starts at address 0x20000000.
	70	An address of data cannot be stored correctly in a Lisp object;
	71	we always lose the high bits. We must tell XPNTR to add them back. */
	72
	73	#define DATA_SEG_BITS 0x20000000
	74
	75	#define N_BADMAG(x) BADMAG(x)
	76	#define N_TXTOFF(x) A_TEXTPOS(x)
	77	#define N_SYMOFF(x) A_SYMPOS(x)
	78	#define A_TEXT_OFFSET(HDR) sizeof(HDR)
	79	#define ADJUST_EXEC_HEADER \
	80	unexec_text_start += sizeof(hdr); \
	81	unexec_data_start = ohdr.a_dbase
	82	#undef ADDR_CORRECT
	83	#define ADDR_CORRECT(x) ((int)(x))
	84
	85	/* This is the offset of the executable's text, from the start of the file. */
	86
	87	#define A_TEXT_SEEK(HDR) (N_TXTOFF (hdr) + sizeof (hdr))
	88
30fe07a6 JB	89	/* AIX has PTYs, so define here, along with macros needed to make them work. */
	90
	91	#define HAVE_PTYS
	92	#define PTY_ITERATION for (i=0; i<256; i++)
	93	#define PTY_NAME_SPRINTF sprintf (ptyname, "/dev/ptc%d", i);
	94
	95	#define PTY_TTY_NAME_SPRINTF \
	96	{ /* Check that server side not already open */ \
	97	if ((ioctl (*ptyv, PTYSTATUS, 0) & 0xFFFF) != 0) \
	98	{ \
332d98c7	99	emacs_close (*ptyv); \
30fe07a6 JB	100	continue; \
	101	} \
	102	/* And finally to be sure we can open it later */ \
	103	sprintf (ptyname, "/dev/pts%d", i); \
	104	signal (SIGHUP,SIG_IGN); \
	105	} /* ignore hangup at process end */
	106
	107	/* TIOCNOTTY doesn't occur on AIX, but the rest
	108	of the conditionalized code in process.c does
	109	the right thing if we fake this out. */
	110	#define TIOCNOTTY IOCTYPE
	111
	112	/* AIX has IPC. It also has sockets, and either can be used for client/server.
	113	I would suggest the client/server code be changed to use HAVE_SOCKETS rather
8e4c450d	114	than BSD_SYSTEM as the conditional if sockets provide any advantages. */
30fe07a6 JB	115
	116	#define HAVE_SYSVIPC
	117
	118	/* AIX has sockets */
	119
	120	#define HAVE_SOCKETS
	121	/* #define SKTPAIR / / SKTPAIR works, but what is advantage over pipes? */
	122
	123	/* Specify the font for X to use. */
	124
	125	#define X_DEFAULT_FONT "Rom14.500"
	126
	127	/* Here override various assumptions in ymakefile */
	128
	129	/* On AIX 2.2.1, use these definitions instead
	130	#define C_SWITCH_MACHINE -I/usr/include -Nn2000
	131	#define LIBS_MACHINE -lX -lrts
	132	*/
	133
	134	#define C_SWITCH_MACHINE -I/usr/include -I/usr/include/bsd -Nn2000
	135	#define LIBS_MACHINE -lXMenu -lX -lsock -lbsd -lrts
	136
	137	#define OBJECTS_MACHINE hftctl.o
	138	#define START_FILES /lib/crt0.o
	139	/* -lXMenu, -lX must precede -lsock, -lbsd */
	140	#define LD_SWITCH_MACHINE -n -T0x10000000 -K -e start
	141
	142	#if 0 /* I refuse to promulgate a recommendation that would make
	143	users unable to debug - RMS. */
	144	/* delete the following line to foil optimization, enable debugging */
	145	#define C_DEBUG_SWITCH -O
	146	#endif
	147
	148
	149	/* Setup to do some things BSD way - these won't work previous to AIX 2.1.2 */
	150
	151	#include </usr/include/bsd/BSDtoAIX.h>
	152	#define BSTRING
30fe07a6	153
5df58331 KH	154	/* AIX utimes allegedly causes SIGSEGV. */
5df58331 KH	155	#undef HAVE_UTIMES /* override configuration decision */
30fe07a6 JB	156
	157	/* AIX defines FIONREAD, but it does not work. */
	158	#define BROKEN_FIONREAD
2e388a26 RS	159
	160	/* rocky@watson.ibm.com says this is needed. */
	161	#define HAVE_FTIME
6b61353c KH	162
	163	/* arch-tag: eea85307-0ca9-4a9c-a4f6-89fad7591d28
	164	(do not change this comment) */