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comparison src/m/ibmrt-aix.h @ 0:376386a54a3c r19-14

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Import from CVS: tag r19-14
author cvs
date Mon, 13 Aug 2007 08:45:50 +0200
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1 /* RTPC AIX machine/system dependent defines
2 Copyright (C) 1988 Free Software Foundation, Inc.
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
8 the Free Software Foundation; either version 2, or (at your option)
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 XEmacs; see the file COPYING. If not, write to
18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
20
21 /* Synched up with: FSF 19.31. */
22
23 /* The following line tells the configuration script what sort of
24 operating system this machine is likely to run.
25 USUAL-OPSYS="usg5-2-2" */
26
27 /* Now define a symbol for the cpu type, if your compiler
28 does not define it automatically. */
29
30 #ifndef IBMAIX
31 #define IBMAIX
32 #endif
33
34 /* No load average information appears in the AIX kernel. VRM has this
35 info, and if anyone desires they should fix fns.c to get it out of VRM */
36
37 /* Define CANNOT_DUMP on machines where unexec does not work.
38 Then the function dump-emacs will not be defined
39 and temacs will do (load "loadup") automatically unless told otherwise. */
40
41 /* #define CANNOT_DUMP */
42
43 /* Define addresses, macros, change some setup for dump */
44
45 #undef COFF
46 #define NO_REMAP
47
48 #define TEXT_START 0x10000000
49 #define TEXT_END 0
50 #define DATA_START 0x20000000
51 #define DATA_END 0
52
53 /* The data segment in this machine always starts at address 0x20000000.
54 An address of data cannot be stored correctly in a Lisp object;
55 we always lose the high bits. We must tell XPNTR to add them back. */
56
57 #define DATA_SEG_BITS 0x20000000
58
59 #define N_BADMAG(x) BADMAG(x)
60 #define N_TXTOFF(x) A_TEXTPOS(x)
61 #define N_SYMOFF(x) A_SYMPOS(x)
62 #define A_TEXT_OFFSET(HDR) sizeof(HDR)
63 #define ADJUST_EXEC_HEADER \
64 unexec_text_start += sizeof(hdr); \
65 unexec_data_start = ohdr.a_dbase
66 #undef ADDR_CORRECT
67 #define ADDR_CORRECT(x) ((int)(x))
68
69 /* This is the offset of the executable's text, from the start of the file. */
70
71 #define A_TEXT_SEEK(HDR) (N_TXTOFF (hdr) + sizeof (hdr))
72
73 /* Define C_ALLOCA if this machine does not support a true alloca
74 and the one written in C should be used instead.
75 Define HAVE_ALLOCA to say that the system provides a properly
76 working alloca function and it should be used.
77 Define neither one if an assembler-language alloca
78 in the file alloca.s should be used. */
79
80 #define C_ALLOCA
81 #define STACK_DIRECTION -1 /* tell alloca.c which way it grows */
82
83 /* AIX has PTYs, so define here, along with macros needed to make them work. */
84
85 #define HAVE_PTYS
86 #define PTY_ITERATION for (i=0; i<256; i++)
87 #define PTY_NAME_SPRINTF sprintf (ptyname, "/dev/ptc%d", i);
88
89 #define PTY_TTY_NAME_SPRINTF \
90 { /* Check that server side not already open */ \
91 if ((ioctl (*ptyv, PTYSTATUS, 0) & 0xFFFF) != 0) \
92 { \
93 close (*ptyv); \
94 continue; \
95 } \
96 /* And finally to be sure we can open it later */ \
97 sprintf (ptyname, "/dev/pts%d", i); \
98 signal (SIGHUP,SIG_IGN); \
99 } /* ignore hangup at process end */
100
101 /* TIOCNOTTY doesn't occur on AIX, but the rest
102 of the conditionalized code in process.c does
103 the right thing if we fake this out. */
104 #define TIOCNOTTY IOCTYPE
105
106 /* #define SKTPAIR */ /* SKTPAIR works, but what is advantage over pipes? */
107
108 /* Specify the font for X to use. */
109
110 #define X_DEFAULT_FONT "Rom14.500"
111
112 /* Here override various assumptions in ymakefile */
113
114 /* On AIX 2.2.1, use these definitions instead
115 #define C_SWITCH_MACHINE -I/usr/include -Nn2000
116 #define LIBS_MACHINE -lX -lrts
117 */
118
119 #define C_SWITCH_MACHINE -I/usr/include -I/usr/include/bsd -Nn2000
120 #define LIBS_MACHINE -lXMenu -lX -lsock -lbsd -lrts
121
122 #define OBJECTS_MACHINE hftctl.o
123 #define START_FILES /lib/crt0.o
124 /* -lXMenu, -lX must precede -lsock, -lbsd */
125 #define LD_SWITCH_MACHINE -n -T0x10000000 -K -e start
126
127 #if 0 /* I refuse to promulgate a recommendation that would make
128 users unable to debug - RMS. */
129 /* delete the following line to foil optimization, enable debugging */
130 #define C_DEBUG_SWITCH -O
131 #endif
132
133
134 /* Setup to do some things BSD way - these won't work previous to AIX 2.1.2 */
135
136 #include </usr/include/bsd/BSDtoAIX.h>
137
138 /* AIX utimes allegedly causes SIGSEGV. */
139 #undef HAVE_UTIMES /* override configuration decision */
140
141 /* rocky@watson.ibm.com says this is needed. */
142 #define HAVE_FTIME