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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 1, 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 three symbols give information on
- the size of various data types. */
-
- #define SHORTBITS 16 /* Number of bits in a short */
-
- #define INTBITS 32 /* Number of bits in an int */
-
- #define LONGBITS 32 /* Number of bits in a long */
-
- /* Define BIG_ENDIAN iff lowest-numbered byte in a word
- is the most significant byte. */
-
- #define 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
-
- /* Define how to take a char and sign-extend into an int.
- On machines where char is signed, this is a no-op. */
-
- #define SIGN_EXTEND_CHAR(c) ((((int) (c)) << 24) >> 24)
-
- /* Now define a symbol for the cpu type, if your compiler
- does not define it automatically. */
-
- #define IBMRTAIX
-
- #ifndef AIX
- #define AIX
- #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))
-
- /* 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 defines needed to make them work. */
- /* AIX has one problem related to PTYs though: SIGHUP is seen by the parent */
- /* along with SIGCHLD when the child dies. Thus we need to ignore SIGHUP */
- /* once a process is begun on a PTY. EMACS may not go away when its tty */
- /* goes away because of this -- if this is a problem, either comment out the */
- /* def of HAVE_PTYS below, or set process-connection-type to nil in .emacs. */
-
- #define HAVE_PTYS
- #define PTY_ITERATION for (i=0; i<256; i++)
- #define PTY_NAME_SPRINTF sprintf (pty_name, "/dev/ptc%d", i);
- #define PTY_TTY_NAME_SPRINTF \
- /* Check that server side not already open */ \
- if ((ioctl(fd, PTYSTATUS, 0) & 0xFFFF) != 0) { \
- close(fd); \
- continue; \
- } \
- sprintf (pty_name, "/dev/pts%d", i);
-
- /* TIOCNOTTY isn't needed on AIX, but the rest of the conditionalized code
- in process.c does properly begin a new process group if we fake this out.
- On AIX 2.2 TIOCNOTTY is defined in termio.h, and this will be overriden
- by that definition appropriately. */
-
- #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 -lrts
- #define LIBX10_MACHINE -lrts
- #define LIBX11_MACHINE -lrts
- */
-
- #define C_SWITCH_MACHINE -I/usr/include -I/usr/include/bsd -Nn2000
- /* need to duplicate -lsock -lbsd -lrts so refs in libX can be resolved */
- /* order of lib specs in ymakefile should probably be changed. */
- #define LIBS_MACHINE -lsock -lbsd -lrts
- #define LIBX10_MACHINE -lsock -lbsd -lrts
- #define LIBX11_MACHINE -lsock -lbsd -lrts
-
- #define OBJECTS_MACHINE hftctl.o
- #define START_FILES /lib/crt0.o
- #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 */
-
- #define bzero(t,s) (memset((t),(0),(s)))
- #define bcmp(f,t,s) (memcmp((t),(f),(s)))
- #define vfork fork
- #define killpg( pgrp, sig ) (kill( -(pgrp), (sig) ))
-
- #define BSTRING
- #define HAVE_DUP2
- #define HAVE_GETTIMEOFDAY
- #define HAVE_SELECT
- #define HAVE_TIMEVAL
- #define HAVE_VFORK
-
- /* But don't use utimes() -- it causes SIGSEGV! Use utime() instead. */
- #define USE_UTIME
-
- /* getwd is in same object module as getcwd in AIX 2.2, but doesn't exist */
- /* at all in 2.1.2. So, for compatibility, avoid name collision on 2.2 */
- #define getwd AIX_getwd
-
- /* AIX defines FIONREAD, but it does not work. */
- #define BROKEN_FIONREAD
-