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1.1 root 1: /* R2 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 1, 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 GNU Emacs; see the file COPYING. If not, write to
18: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
19:
20:
21: /* The following three symbols give information on
22: the size of various data types. */
23:
24: #define SHORTBITS 16 /* Number of bits in a short */
25:
26: #define INTBITS 32 /* Number of bits in an int */
27:
28: #define LONGBITS 32 /* Number of bits in a long */
29:
30: /* Define BIG_ENDIAN iff lowest-numbered byte in a word
31: is the most significant byte. */
32:
33: #define BIG_ENDIAN 4321
34:
35: /* Define NO_ARG_ARRAY if you cannot take the address of the first of a
36: * group of arguments and treat it as an array of the arguments. */
37:
38: #define NO_ARG_ARRAY
39:
40: /* Define how to take a char and sign-extend into an int.
41: On machines where char is signed, this is a no-op. */
42:
43: #define SIGN_EXTEND_CHAR(c) ((((int) (c)) << 24) >> 24)
44:
45: /* Now define a symbol for the cpu type, if your compiler
46: does not define it automatically. */
47:
48: #define IBMR2AIX
49:
50: /* Use type int rather than a union, to represent Lisp_Object */
51: /* This is desirable for most machines. */
52:
53: #define NO_UNION_TYPE
54:
55: /* Define CANNOT_DUMP on machines where unexec does not work.
56: Then the function dump-emacs will not be defined
57: and temacs will do (load "loadup") automatically unless told otherwise. */
58: /* #define CANNOT_DUMP */
59:
60: #define UNEXEC unexaix.o
61:
62: /* Define addresses, macros, change some setup for dump */
63:
64: #define NO_REMAP
65:
66: #define TEXT_START 0x10000000
67: #define TEXT_END 0
68: #define DATA_START 0x20000000
69: #define DATA_END 0
70:
71: /* The data segment in this machine always starts at address 0x20000000.
72: An address of data cannot be stored correctly in a Lisp object;
73: we always lose the high bits. We must tell XPNTR to add them back. */
74:
75: #define DATA_SEG_BITS 0x20000000
76:
77: #ifdef CANNOT_DUMP
78: /* Define shared memory segment symbols */
79:
80: #define PURE_SEG_BITS 0x30000000
81:
82: /* Use shared memory. */
83: /* This is turned off because it does not always work. See etc/AIX.DUMP. */
84: /* #define HAVE_SHM */
85: #define SHMKEY 5305035 /* used for shared memory code segments */
86: #endif /* CANNOT_DUMP */
87:
88: #define N_BADMAG(x) BADMAG(x)
89: #define N_TXTOFF(x) A_TEXTPOS(x)
90: #define N_SYMOFF(x) A_SYMPOS(x)
91: #define A_TEXT_OFFSET(HDR) sizeof(HDR)
92: /* #define ADJUST_EXEC_HEADER \
93: unexec_text_start += sizeof(hdr); \
94: unexec_data_start = ohdr.a_dbase
95: */
96: #undef ADDR_CORRECT
97: #define ADDR_CORRECT(x) ((int)(x))
98:
99: /* Define C_ALLOCA if this machine does not support a true alloca
100: and the one written in C should be used instead.
101: Define HAVE_ALLOCA to say that the system provides a properly
102: working alloca function and it should be used.
103: Define neither one if an assembler-language alloca
104: in the file alloca.s should be used. */
105:
106: #define C_ALLOCA
107: #define STACK_DIRECTION -1 /* tell alloca.c which way it grows */
108:
109: /* Specify the font for X to use. */
110:
111: #define X_DEFAULT_FONT "Rom14.500"
112:
113: /* Here override various assumptions in ymakefile */
114:
115: #define OBJECTS_MACHINE hftctl.o
116: /* C_SWITCH_MACHINE used to have -D_BSD, but [email protected] says no need. */
117: #define C_SWITCH_MACHINE
118: #define LIBS_MACHINE -lrts
119: #define START_FILES
120: #define HAVE_DUP2
121: #define HAVE_GETTIMEOFDAY
122: #define HAVE_SYSVIPC
123: #define HAVE_SETSID
124: #define HAVE_GETWD
125: /*** BUILD 9008 - FIONREAD problem still exists in X-Windows. ***/
126: #define BROKEN_FIONREAD
127: #define NO_SIOCTL_H
128:
129: #undef LINKER
130: #define LINKER cc -Wl,-bnso,-bnodelcsect,-bI:/lib/syscalls.exp
131:
132: /* The header files seem to be from X11R4, but the library is not.
133: So don don't use the r4 library features. */
134:
135: #ifndef SPECIFY_X11R4
136: #define SPECIFY_X11R4 0
137: #endif
138:
139: #ifdef __STDC__
140: #ifndef DONT_DEFINE_SIGNAL
141: /* Cast the function argument to avoid warnings. */
142: #define signal(sig, func) (signal (sig, (void (*) (int)) (func)))
143: #endif
144: #endif
145:
146: #if 0 /* s-aix3-1.h seems to do this. */
147: /* Special way to find a pty. */
148: #define PTY_ITERATION for (i = 0; i < 4; ++i)
149: #define PTY_NAME_SPRINTF strcpy (pty_name, "/dev/ptc");
150: #define PTY_TTY_NAME_SPRINTF strcpy (pty_name, ttyname (fd));
151: #endif
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