1 /* machine description file for Convex (all models).
2 Copyright (C) 1987, 1994 Free Software Foundation, Inc.
4 This file is part of GNU Emacs.
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)
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.
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. */
21 /* Synched up with: FSF 19.31. */
23 /* The following line tells the configuration script what sort of
24 operating system this machine is likely to run.
25 USUAL-OPSYS="bsd4-3" */
27 /* Now define a symbol for the cpu type, if your compiler
28 does not define it automatically. */
29 #ifndef convex /* The compiler doesn't always do this. */
33 #ifndef __GNUC__ /* David M. Cooke <dcooke@haven.larc.nasa.gov>
34 and Ralph Sobek <Ralph.Sobek@cerfacs.fr> agree
35 must ignore one arg when compiled with convex compiler. */
36 #define CRT0_DUMMIES ignore,
41 /* crt0.c should define a symbol `start' and do .globl with a dot. */
43 #define DOT_GLOBAL_START
45 /* Data type of load average, as read out of kmem. */
47 #define LOAD_AVE_TYPE double
49 /* Convert that into an integer that is 100 for a load average of 1.0 */
51 #define LOAD_AVE_CVT(x) (int) ((x) * 100.0)
53 /* Define CANNOT_DUMP on machines where unexec does not work.
54 Then the function dump-emacs will not be defined
55 and temacs will do (load "loadup") automatically unless told otherwise. */
57 /* #define CANNOT_DUMP */
59 /* Define C_ALLOCA if this machine does not support a true alloca
60 and the one written in C should be used instead.
61 Define HAVE_ALLOCA to say that the system provides a properly
62 working alloca function and it should be used.
63 Define neither one if an assembler-language alloca
64 in the file alloca.s should be used. */
66 /* #define C_ALLOCA */
69 /* Must use the system's termcap. It does special things. */
71 #define LIBS_TERMCAP "-ltermcap"
73 /* Define NO_REMAP if memory segmentation makes it not work well
74 to change the boundary between the text section and data section
75 when Emacs is dumped. If you define this, the preloaded Lisp
76 code will not be sharable; but that's better than failing completely. */
78 /* #define NO_REMAP */
80 /* Right shift is logical shift.
81 And the usual way of handling such machines, which involves
82 copying the number into sign_extend_temp, does not work
83 for reasons as yet unknown. */
85 #define XREALINT(a) sign_extend_lisp_int (a)
87 /* Convex uses a special version of unexec. */
89 #define UNEXEC "unexconvex.o"
91 /* you gotta define 'COFF' for post 6.1 unexec. */
94 #define TEXT_START 0x80001000
96 /* Posix stuff for Convex OS 8.1 and up. */
98 #define LD_SWITCH_MACHINE "-e__start -L /usr/lib '-A__iob=___ap$$iob' '-A_use_libc_sema=___ap$$use_libc_sema'"
102 /* These symbols have been undefined to advance the state of the art. */
104 #define S_IFMT _S_IFMT
105 #define S_IFDIR _S_IFDIR
107 #define S_IREAD _S_IREAD
108 #define S_IWRITE _S_IWRITE
109 #define S_IEXEC _S_IEXEC
113 /* Ptys may start below ptyp0; call a routine to hunt for where. */
115 #undef FIRST_PTY_LETTER
116 #define FIRST_PTY_LETTER first_pty_letter()
120 * Force a K&R compilation and libraries with the Convex V 4.0 C compiler
122 #define C_SWITCH_MACHINE "-pcc"
123 #define LIB_STANDARD "-lc_old"
124 #define LIBS_MACHINE "-lC2_old"
125 #define LD_SWITCH_MACHINE "-X -NL -fn -Enoposix -A__iob=___ap\$$iob -A_use_libc_sema=___ap\$$use_libc_sema -L /usr/lib"
128 /* Avoid error in xrdb.c - d.m.cooke@larc.nasa.gov. */
129 #define DECLARE_GETPWUID_WITH_UID_T
131 /* Tested for both Convex C and GNUC by d.m.cooke@larc.nasa.gov. */
132 #define LIBS_MACHINE "-lC2"
134 /* Avoid error in getloadavg.c. */
135 #define NLIST_NAME_UNION 1
137 #if 0 /* This is supposed to be an improvement.
138 It would be good for people to try enabling this code
139 and report the results. */
140 /* gcc -nostdlib prevents some math symbols from being included.
141 So we have to use -nostartfiles instead. */
142 #define LINKER "$(CC) -nostartfiles"
144 #define ORDINARY_LINK
146 #undef LD_SWITCH_MACHINE
147 #define LD_SWITCH_MACHINE "-L /usr/lib '-A__iob=___ap$$iob' '-A_use_libc_sema=___ap$$use_libc_sema'"