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

/* RTPC AIX machine/system dependent defines
   Copyright (C) 1988, 1999, 2002, 2003, 2004,
                 2005, 2006 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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, 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
b908093d	2	Copyright (C) 1988, 1999, 2002, 2003, 2004,
aaef169d	3	2005, 2006 Free Software Foundation, Inc.
30fe07a6 JB	4
	5	This file is part of GNU Emacs.
	6
	7	GNU Emacs is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
17385adc	9	the Free Software Foundation; either version 2, or (at your option)
30fe07a6 JB	10	any later version.
	11
	12	GNU Emacs 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 GNU Emacs; see the file COPYING. If not, write to
364c38d3 LK	19	the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
364c38d3 LK	20	Boston, MA 02110-1301, USA. */
30fe07a6 JB	21
30fe07a6 JB	22
177c0ea7	23	/* The following line tells the configuration script what sort of
30fe07a6 JB	24	operating system this machine is likely to run.
	25	USUAL-OPSYS="usg5-2-2" */
	26
74d3f806 KH	27	/* Define WORDS_BIG_ENDIAN iff lowest-numbered byte in a word
	28	is the most significant byte. */
	29
	30	#define WORDS_BIG_ENDIAN
	31
30fe07a6 JB	32	/* Define NO_ARG_ARRAY if you cannot take the address of the first of a
	33	* group of arguments and treat it as an array of the arguments. */
	34
	35	#define NO_ARG_ARRAY
	36
30fe07a6 JB	37	/* Now define a symbol for the cpu type, if your compiler
	38	does not define it automatically. */
	39
	40	#ifndef IBMAIX
	41	#define IBMAIX
	42	#endif
	43
	44	/* Use type int rather than a union, to represent Lisp_Object */
	45	/* This is desirable for most machines. */
	46
	47	#define NO_UNION_TYPE
	48
	49	/* No load average information appears in the AIX kernel. VRM has this
	50	info, and if anyone desires they should fix fns.c to get it out of VRM */
	51
	52	/* Define CANNOT_DUMP on machines where unexec does not work.
	53	Then the function dump-emacs will not be defined
	54	and temacs will do (load "loadup") automatically unless told otherwise. */
	55
	56	/* #define CANNOT_DUMP */
	57
	58	/* Define addresses, macros, change some setup for dump */
	59
	60	#undef COFF
	61	#define NO_REMAP
	62	#undef static
	63	/* Since NO_REMAP, problem with statics doesn't exist */
	64
	65	#define TEXT_START 0x10000000
	66	#define TEXT_END 0
	67	#define DATA_START 0x20000000
	68	#define DATA_END 0
	69
	70	/* The data segment in this machine always starts at address 0x20000000.
	71	An address of data cannot be stored correctly in a Lisp object;
	72	we always lose the high bits. We must tell XPNTR to add them back. */
	73
	74	#define DATA_SEG_BITS 0x20000000
	75
	76	#define N_BADMAG(x) BADMAG(x)
	77	#define N_TXTOFF(x) A_TEXTPOS(x)
	78	#define N_SYMOFF(x) A_SYMPOS(x)
	79	#define A_TEXT_OFFSET(HDR) sizeof(HDR)
	80	#define ADJUST_EXEC_HEADER \
	81	unexec_text_start += sizeof(hdr); \
	82	unexec_data_start = ohdr.a_dbase
	83	#undef ADDR_CORRECT
	84	#define ADDR_CORRECT(x) ((int)(x))
	85
	86	/* This is the offset of the executable's text, from the start of the file. */
	87
	88	#define A_TEXT_SEEK(HDR) (N_TXTOFF (hdr) + sizeof (hdr))
	89
30fe07a6 JB	90	/* AIX has PTYs, so define here, along with macros needed to make them work. */
	91
	92	#define HAVE_PTYS
	93	#define PTY_ITERATION for (i=0; i<256; i++)
	94	#define PTY_NAME_SPRINTF sprintf (ptyname, "/dev/ptc%d", i);
	95
	96	#define PTY_TTY_NAME_SPRINTF \
	97	{ /* Check that server side not already open */ \
	98	if ((ioctl (*ptyv, PTYSTATUS, 0) & 0xFFFF) != 0) \
	99	{ \
332d98c7	100	emacs_close (*ptyv); \
30fe07a6 JB	101	continue; \
	102	} \
	103	/* And finally to be sure we can open it later */ \
	104	sprintf (ptyname, "/dev/pts%d", i); \
	105	signal (SIGHUP,SIG_IGN); \
	106	} /* ignore hangup at process end */
	107
	108	/* TIOCNOTTY doesn't occur on AIX, but the rest
	109	of the conditionalized code in process.c does
	110	the right thing if we fake this out. */
	111	#define TIOCNOTTY IOCTYPE
	112
	113	/* AIX has IPC. It also has sockets, and either can be used for client/server.
	114	I would suggest the client/server code be changed to use HAVE_SOCKETS rather
8e4c450d	115	than BSD_SYSTEM as the conditional if sockets provide any advantages. */
30fe07a6 JB	116
	117	#define HAVE_SYSVIPC
	118
	119	/* AIX has sockets */
	120
	121	#define HAVE_SOCKETS
	122	/* #define SKTPAIR / / SKTPAIR works, but what is advantage over pipes? */
	123
	124	/* Specify the font for X to use. */
	125
	126	#define X_DEFAULT_FONT "Rom14.500"
	127
	128	/* Here override various assumptions in ymakefile */
	129
	130	/* On AIX 2.2.1, use these definitions instead
	131	#define C_SWITCH_MACHINE -I/usr/include -Nn2000
	132	#define LIBS_MACHINE -lX -lrts
	133	*/
	134
	135	#define C_SWITCH_MACHINE -I/usr/include -I/usr/include/bsd -Nn2000
	136	#define LIBS_MACHINE -lXMenu -lX -lsock -lbsd -lrts
	137
	138	#define OBJECTS_MACHINE hftctl.o
	139	#define START_FILES /lib/crt0.o
	140	/* -lXMenu, -lX must precede -lsock, -lbsd */
	141	#define LD_SWITCH_MACHINE -n -T0x10000000 -K -e start
	142
	143	#if 0 /* I refuse to promulgate a recommendation that would make
	144	users unable to debug - RMS. */
	145	/* delete the following line to foil optimization, enable debugging */
	146	#define C_DEBUG_SWITCH -O
	147	#endif
	148
	149
	150	/* Setup to do some things BSD way - these won't work previous to AIX 2.1.2 */
	151
	152	#include </usr/include/bsd/BSDtoAIX.h>
	153	#define BSTRING
30fe07a6	154
5df58331 KH	155	/* AIX utimes allegedly causes SIGSEGV. */
5df58331 KH	156	#undef HAVE_UTIMES /* override configuration decision */
30fe07a6 JB	157
	158	/* AIX defines FIONREAD, but it does not work. */
	159	#define BROKEN_FIONREAD
2e388a26 RS	160
	161	/* rocky@watson.ibm.com says this is needed. */
	162	#define HAVE_FTIME
ab5796a9 MB	163
	164	/* arch-tag: eea85307-0ca9-4a9c-a4f6-89fad7591d28
	165	(do not change this comment) */