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/* RTPC AIX machine/system dependent defines
Copyright (C) 1988 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, 675 Mass Ave, Cambridge, MA 02139, 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))
/* Define C_ALLOCA if this machine does not support a true alloca
and the one written in C should be used instead.
Define HAVE_ALLOCA to say that the system provides a properly
working alloca function and it should be used.
Define neither one if an assembler-language alloca
in the file alloca.s should be used. */
#define C_ALLOCA
#define STACK_DIRECTION -1 /* tell alloca.c which way it grows */
/* 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) \
{ \
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 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
#define HAVE_GETTIMEOFDAY
#define HAVE_VFORK
/* 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
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