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author | Richard M. Stallman <rms@gnu.org> | 1995-03-24 05:18:06 +0000 |
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committer | Richard M. Stallman <rms@gnu.org> | 1995-03-24 05:18:06 +0000 |
commit | bf40a97ffabe6da22a0f05147b9001a3f2a17112 (patch) | |
tree | 2305a05c1a451c435c5651cf1a52c2e0d3d17e98 /src/m/mips-siemens.h | |
parent | 554216ad38160bb0cc900722abed2224db858f72 (diff) | |
download | emacs-bf40a97ffabe6da22a0f05147b9001a3f2a17112.tar.gz |
(UNEXEC): Override the definition.
(LIBS_DEBUG, ORDINARY_LINK): Add #undefs.
Total rewrite.
Diffstat (limited to 'src/m/mips-siemens.h')
-rw-r--r-- | src/m/mips-siemens.h | 194 |
1 files changed, 184 insertions, 10 deletions
diff --git a/src/m/mips-siemens.h b/src/m/mips-siemens.h index f8eb94d807e..3ac87ae4ec9 100644 --- a/src/m/mips-siemens.h +++ b/src/m/mips-siemens.h @@ -1,21 +1,195 @@ -#include "pyramid.h" +/* m- file for Mips machines. + Copyright (C) 1987, 1992, 1993, 1995 Free Software Foundation, Inc. + This file contains some changes for our SVR4 based SINIX-Mips 5.4. + I hope this is helpful to port the emacs to our RM?00 series and + maybe to the DC/OSx (Mips-based) machines of Pyramid Inc. + (Marco.Walther@mch.sni.de) -/* Don't use the ordinary -g for debugging in cc */ +This file is part of GNU Emacs. -#undef C_DEBUG_SWITCH -#define C_DEBUG_SWITCH -g +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 2, or (at your option) +any later version. -/* This system uses a slightly nonstandard variant of elf format. */ -#undef UNEXEC -#define UNEXEC unexelf.o -#define ELF_BSS_SECTION_NAME ".sbss" +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 line tells the configuration script what sort of + operating system this machine is likely to run. + USUAL-OPSYS="note" + +NOTE-START +Use m-mips4.h for RISCOS version 4; use s-bsd4-3.h with the BSD world. +Note that the proper m- file for the Decstation is m-pmax.h. +This is the m- file for SNI RM*00 machines. Use s- sinix5-4.h file! +With this the file mips-siemens.h is obsolete. +NOTE-END */ + +/* The following three symbols give information on + the size of various data types. */ -#define BSTRING +#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 -#undef BROKEN_FIONREAD +/* Define WORD_MACHINE if addresses and such have + * to be corrected before they can be used as byte counts. */ + +#undef WORD_MACHINE + +/* 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) ((signed char)(c)) + +/* Now define a symbol for the cpu type, if your compiler + does not define it automatically: + Ones defined so far include vax, m68000, ns16000, pyramid, + orion, tahoe, APOLLO and many others */ +#ifndef mips +# define mips +#endif + +/* Use type int rather than a union, to represent Lisp_Object */ +/* This is desirable for most machines. */ + +#define NO_UNION_TYPE + +/* Define EXPLICIT_SIGN_EXTEND if XINT must explicitly sign-extend + the 24-bit bit field into an int. In other words, if bit fields + are always unsigned. + + If you use NO_UNION_TYPE, this flag does not matter. */ + +#define EXPLICIT_SIGN_EXTEND + +/* Data type of load average, as read out of kmem. */ + +#define LOAD_AVE_TYPE long + +/* Convert that into an integer that is 100 for a load average of 1.0 */ + +#define LOAD_AVE_CVT(x) (int) (((double) (x)) * 100.0 / 256.0) +/* CDC EP/IX 1.4.3 uses /unix */ + +#undef KERNEL_FILE +#define KERNEL_FILE "/unix" + +/* 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. */ + +#undef CANNOT_DUMP + +/* Define VIRT_ADDR_VARIES if the virtual addresses of + pure and impure space as loaded can vary, and even their + relative order cannot be relied on. + + Otherwise Emacs assumes that text space precedes data space, + numerically. */ + +/* #define VIRT_ADDR_VARIES */ + +/* 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. */ + +#ifdef __GNUC__ +#define HAVE_ALLOCA +#else #define C_ALLOCA +#endif + +/* Define NO_REMAP if memory segmentation makes it not work well + to change the boundary between the text section and data section + when Emacs is dumped. If you define this, the preloaded Lisp + code will not be sharable; but that's better than failing completely. */ + +#define NO_REMAP + +/* Describe layout of the address space in an executing process. */ +/* MARCO ??? +*/ +#define TEXT_START 0x400000 +/* +#define DATA_START 0x10000000 +#define DATA_SEG_BITS 0x10000000 +*/ +#ifdef UNEXEC +#undef UNEXEC +#endif +#define UNEXEC unexelfsni.o + +#undef ORDINARY_LINK + +#undef LIBS_DEBUG + +/* Alter some of the options used when linking. */ + +#define LIBS_MACHINE -lmld +#define START_FILES pre-crt0.o /usr/ccs/lib/crt1.o /usr/ccs/lib/crti.o /usr/ccs/lib/values-Xt.o + +#ifdef LIB_STANDARD +#undef LIB_STANDARD +#endif +#define LIB_STANDARD -lc /usr/ccs/lib/crtn.o + +#ifdef __GNUC__ +#define C_DEBUG_SWITCH +#define C_OPTIMIZE_SWITCH -O +#define LD_SWITCH_MACHINE +#else +#define C_DEBUG_SWITCH -DSYSV +#define C_OPTIMIZE_SWITCH -DSYSV +#define LD_SWITCH_MACHINE +#endif + +#if defined(HAVE_X_WINDOWS) && defined(HAVE_X11) +#define HAVE_VFORK /* Graciously provided by libX.a */ +#endif + + +/* The standard definitions of these macros would work ok, + but these are faster because the constants are short. */ + +#define XUINT(a) (((unsigned)(a) << (INTBITS-VALBITS)) >> (INTBITS-VALBITS)) + +#define XSET(var, type, ptr) \ + ((var) = \ + ((int)(type) << VALBITS) \ + + (((unsigned) (ptr) << (INTBITS-VALBITS)) >> (INTBITS-VALBITS))) + +#define XSETINT(a, b) XSET(a, XTYPE(a), b) +#define XSETUINT(a, b) XSET(a, XTYPE(a), b) +#define XSETPNTR(a, b) XSET(a, XTYPE(a), b) + +#define XUNMARK(a) \ + ((a) = \ + (((unsigned)(a) << (INTBITS-GCTYPEBITS-VALBITS)) \ + >> (INTBITS-GCTYPEBITS-VALBITS))) |