source: BOOK/cross-tools/x86/variables.xml@ 6c613c4

clfs-2.1 clfs-3.0.0-systemd clfs-3.0.0-sysvinit systemd sysvinit
Last change on this file since 6c613c4 was 3a63c0d, checked in by Joe Ciccone <jciccone@…>, 14 years ago

Update the command to set CLFS_HOST based on the hosts MACHTYPE.

  • Property mode set to 100644
File size: 2.8 KB
Line 
1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6]>
7
8<sect1 id="ch-cross-tools-variables">
9 <?dbhtml filename="variables.html"?>
10
11 <title>Build Variables</title>
12
13 <bridgehead renderas="sect4">Setting Host and Target</bridgehead>
14
15 <para os="a">During the building of the cross-compile tools you will need to
16 set a few variables that will be dependent on your particular needs.
17 The first variable will be the triplet of the host machine, which will be
18 put into the <envar>CLFS_HOST</envar> variable. To account for the
19 possibility that the host and target are the same arch, as cross-compiling
20 won't work when host and target are the same, part of the triplet needs to
21 be changed slightly to add "cross". Set <envar>CLFS_HOST</envar> using the
22 following command:</para>
23
24<screen os="b"><userinput>export CLFS_HOST=$(echo ${MACHTYPE} | sed -e 's/-[^-]*/-cross/')</userinput></screen>
25
26 <para os="c">Now you will need to set the triplet for the target
27 architecture. Set the target variable using the following command:</para>
28
29<screen os="d"><userinput>export CLFS_TARGET="[target triplet]"</userinput></screen>
30
31 <para os="t1">Replace [target triplet] with the appropriate machine triplet
32 using the table at the bottom of the page.</para>
33
34 <bridgehead renderas="sect4">Copy settings to the Environment</bridgehead>
35
36 <para os="e">Now add these to <filename>~/.bashrc</filename>, just in
37 case you have to exit and restart building later:</para>
38
39<screen os="f"><userinput>cat &gt;&gt; ~/.bashrc &lt;&lt; EOF
40export CLFS_HOST="${CLFS_HOST}"
41export CLFS_TARGET="${CLFS_TARGET}"
42EOF</userinput></screen>
43
44 <table os="g">
45 <title>Processor Type and Target Triplets</title>
46 <?dbfo table-width="5in" ?>
47
48 <tgroup cols="2">
49
50 <colspec colnum="1" colwidth="2.5in" colname="Processor"/>
51 <colspec colnum="2" colwidth="2.5in" colname="Triplet"/>
52
53 <thead>
54 <row>
55 <entry>Processor</entry>
56 <entry>Target Triplet</entry>
57 </row>
58 </thead>
59
60 <tbody>
61 <row>
62 <entry>386 Compatibles</entry>
63 <entry>Not Supported By Glibc</entry>
64 </row>
65 <row>
66 <entry>486 Compatibles</entry>
67 <entry>i486-pc-linux-gnu</entry>
68 </row>
69 <row>
70 <entry>Pentium, K6, 586 Compatibles</entry>
71 <entry>i586-pc-linux-gnu</entry>
72 </row>
73 <row>
74 <entry>Pentium II, Pentium III, Pentium 4</entry>
75 <entry>i686-pc-linux-gnu</entry>
76 </row>
77 <row>
78 <entry>Athlon, Duron</entry>
79 <entry>i686-pc-linux-gnu</entry>
80 </row>
81 </tbody>
82
83 </tgroup>
84
85 </table>
86
87</sect1>
Note: See TracBrowser for help on using the repository browser.