diff options
Diffstat (limited to 'src/m-ibmrt-aix.h')
| -rw-r--r-- | src/m-ibmrt-aix.h | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/src/m-ibmrt-aix.h b/src/m-ibmrt-aix.h new file mode 100644 index 00000000000..4ac66567094 --- /dev/null +++ b/src/m-ibmrt-aix.h @@ -0,0 +1,196 @@ +/* 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 |