[gforth] / gforth / INSTALL  

gforth: gforth/INSTALL


1 : anton 1.7 You need gcc version 2.0 or later to compile gforth.
2 : anton 1.1
3 : anton 1.5 First, type
4 : anton 1.3
5 : anton 1.8 ./configure
6 : anton 1.1
7 : anton 1.21 (see Section Configuration Options below for details).
8 :    
9 :     After configuration, type
10 :    
11 :     make
12 :    
13 :     Now you can check whether your shiny new Forth system works. Say
14 :    
15 :     make test
16 :    
17 :     You can run some benchmarks with
18 :    
19 :     make bench
20 :    
21 :     and compare them with the results in Benchres and in the manual.
22 :    
23 :     If everything is all right, you may want to install gforth. Type
24 :    
25 :     make install
26 :    
27 :     You have to make an entry in the info directory file manually.
28 :    
29 :     For paper documentation, print gforth.ps (a Postscript file (300dpi
30 :     fonts, i.e., it works, but does not produce best quality on better
31 :     printers)), or say
32 :    
33 :     make gforth.dvi
34 :    
35 :     and print the resulting file gforth.dvi. You can also get the
36 :     documentation in HTML format by typing
37 :    
38 :     make html
39 :    
40 :     If you prefer plain ASCII documentation, just concatenate the files
41 :     gforth.info-* ('cat gforth.info-*' under Unix).
42 :    
43 :    
44 :     Configuration Options
45 :    
46 :     You can build in a directory different from the source directory by
47 :     changing to the build directory and invoking configure thus:
48 :    
49 :     $srcdir/configure
50 :    
51 : anton 1.22 where $srcdir is the source directory. You need a VPATH-capable 'make'
52 :     (e.g., GNU make) for this. (Note that we tested this only
53 : anton 1.21 for installation; i.e., if you want to hack the Gforth sources, you
54 :     should probably build in the source directory).
55 :    
56 : pazsan 1.4 configure has the following useful parameters:
57 : anton 1.9 --prefix=PREFIX install architecture-independent files in PREFIX
58 :     [default: /usr/local]
59 :     --exec-prefix=PREFIX install architecture-dependent files in PREFIX
60 :     [default: same as prefix]
61 : anton 1.8 --enable-force-reg Use explicit register declarations if they appear in
62 :     the machine.h file. This can cause a good speedup,
63 :     but also incorrect code with some gcc versions on
64 :     some processors (default disabled).
65 :     --enable-direct-threaded Force direct threading. This may not work on
66 :     some machines and may cause slowdown on others.
67 :     (default processor-dependent)
68 :     --enable-indirect-threaded Force indirect threading. This can cause a
69 :     slowdown on some machines.
70 :     (default processor-dependent)
71 :     --with-debug specifies option -g to compile with debug info (default)
72 : anton 1.22 --without-debug omits the -g switch and creates smaller images on
73 :     machines where strip has problems with gcc style
74 :     debugging informations.
75 : anton 1.8 --help: tells you about other parameters.
76 : anton 1.1
77 : anton 1.21 The file Benchres shows which combination of the -enable options we
78 :     tried gave the best results for various machines.
79 :    
80 : anton 1.9 If you don't like the defaults for the installation directories, you
81 :     should override them already during configure. E.g., if you want to
82 :     install in the /gnu hierarchy instead of in the default /usr/local
83 : anton 1.15 hierarchy, say
84 : anton 1.5
85 : anton 1.9 ./configure --prefix=/gnu
86 : anton 1.2
87 : anton 1.17 Moreover, if your GCC is not called gcc (but, e.g., gcc-2.7.1), you
88 :     should say so during configuration. E.g.:
89 : pazsan 1.16
90 : anton 1.17 env CC=gcc-2.7.1 ./configure
91 : pazsan 1.16
92 : anton 1.17 You can also pass additional options to gcc in this way, e.g., if you
93 :     want to generate an a.out executable under Linux with gcc-2.7.0:
94 : anton 1.15
95 : anton 1.17 env "CC=gcc -b i486-linuxaout -V 2.7.0" ./configure
96 : anton 1.15
97 : anton 1.22 You can change the sizes of the various areas used in the default
98 :     image `gforth.fi' by passing the appropriate Gforth command line
99 :     options in the FORTHSIZES environment variable:
100 :    
101 :     env "FORTHSIZES=--dictionary-size=256k --data-stack-size=16k --fp-stack-size=16k --return-stack-size=16k --locals-stack-size=16k" ./configure
102 :    
103 :     The line above reaffirms the default sizes. Note that the locals
104 :     stack area is also used as input buffer stack.
105 : anton 1.17
106 :     Preloading installation-specific code
107 :    
108 :     If you want to have some installation-specific files loaded when
109 :     Gforth starts (e.g., an assembler for your processor), put commands
110 :     for loading them into /usr/local/share/gforth/site-forth/site-init.fs
111 :     (if the commands work for all architectures) or
112 :     /usr/local/lib/gforth/site-forth/site-init.fs (for
113 :     architecture-specific commands);
114 :     /usr/local/lib/gforth/site-forth/site-init.fs takes precedence if both
115 :     files are present (unless you change the search path). The file names
116 :     given above are the defaults; if you have changed the prefix, you have
117 :     to replace "/usr/local" in these names with your prefix.
118 :    
119 :     By default, the installation procedure creates an empty
120 :     /usr/local/share/gforth/site-forth/site-init.fs if there is no such
121 :     file.
122 :    
123 :     If you change the site-init.fs file, you should run "make install"
124 :     again for the changes to take effect (Actually, the part of "make
125 :     install" starting with "rm gforth.fi" is sufficient).
126 :    
127 :    
128 : anton 1.12 Multiple Versions and Deinstallation
129 :    
130 :     Several versions of Gforth can be installed and used at the same
131 :     time. Version `foo' can be invoked with `gforth-foo'. We recommend to
132 :     keep the old version for some time after a new one has been installed.
133 : anton 1.10
134 : anton 1.12 You can deinstall this version of Gforth with 'make uninstall' and
135 :     version foo with 'make uninstall VERSION=foo'. 'make uninstall' also
136 :     tells you how to uninstall Gforth completely.
137 : anton 1.17
138 : anton 1.10
139 : anton 1.12 A Possible Problem
140 : anton 1.10
141 :     You need to read this only if you see a message like
142 :    
143 : anton 1.19 ...
144 :     The Gforth installer should look into the INSTALL file
145 :    
146 :     1) "gforth: Cannot load nonrelocatable image (compiled for address $1234) at address $5678
147 : anton 1.10 The Gforth installer should look into the INSTALL file"
148 :    
149 : anton 1.11 Gforth supports both relocatable and fixed-address images. If you load
150 : anton 1.10 normal Forth code and save the image, you get a fixed-address
151 :     image. Producing a relocatable image is more difficult.
152 :    
153 : anton 1.11 Therefore, Gforth has only a relocatable image of the kernel
154 : pazsan 1.20 (kernel.fi), which is powerful enough to load the rest of
155 : anton 1.10 Gforth. However, loading the rest takes a noticable amount of time. To
156 : anton 1.11 avoid this delay (which would occur on every startup), the
157 :     installation procedure produces an image fixed at an address
158 :     determined at the Gforth run that produced the image. This
159 :     fixed-address image is loaded by default. On most OSs this works,
160 :     because the first chunk of memory is always allocated at the same
161 :     address. If the address changes, you get the message above.
162 : anton 1.10
163 :     An image address change can be caused by a change of the gforth
164 :     executable, or by a change (upgrade) of the OS; in these cases you
165 :     just have to rebuild and reinstall the fixed address image with
166 :    
167 :     rm gforth.fi; make gforth.fi; make install
168 :    
169 :     If you get such a message with a different address in place of the
170 : anton 1.19 $5678 each time you try to start gforth, you cannot use fixed-address
171 : anton 1.10 images on your OS. In this case, send us a message so that we start
172 :     searching for a comfortable solution to this problem. In the
173 :     meantime, start gforth with
174 :    
175 : pazsan 1.20 gforth -i kernel.fi startup.fs
176 : anton 1.19
177 :    
178 :     2) "%s: Checksum of image ($13579b) does not match the executable ($2468a)
179 :     The Gforth installer should look into the INSTALL file"
180 :    
181 :     A fixed-address image is not only fixed with respect to its base
182 :     address, but also with respect to certain addresses in the gforth
183 :     executable and the threading method. These things are encoded in a
184 :     checksum.
185 :    
186 :     If the checksum of the executable and the checksum of the image are
187 :     not equal, you get the message above. This can be caused, e.g., by
188 :     trying to run an image produced for a direct threading system on an
189 :     indirect threaded system.
190 :    
191 :     Chances are that you unintentionally tried to execute an image from
192 : anton 1.21 the wrong directory. As a remedy, you can specify Gforth's search
193 : anton 1.19 path with the "-p" command line option and with the GFORTHPATH
194 :     environment variable.
195 :    
196 :     On the other hand, if you need to solve the problem by creating a new
197 :     fixed-address image, you can use the steps described above.
198 :    
199 : anton 1.10

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