source: clfs-embedded/BOOK/cross-tools/mips/variables.xml @ e269c28

Last change on this file since e269c28 was e269c28, checked in by Joe Ciccone <jciccone@…>, 12 years ago

Make sure that we change CLFS_HOST before we set it and also make sure that CLFS_HOST gets saved to the bashrc.

  • Property mode set to 100644
File size: 3.4 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  <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
16  href="../x86/variables.xml"
17  xpointer="xpointer(//*[@os='a'])"/>
18
19  <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
20  href="../x86/variables.xml"
21  xpointer="xpointer(//*[@os='b'])"/>
22
23  <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
24  href="../x86/variables.xml"
25  xpointer="xpointer(//*[@os='c'])"/>
26
27<screen os="d"><userinput>export CLFS_ARCH=$(echo ${CLFS_TARGET} | sed -e 's/-.*//' -e 's/mips64/mips/')</userinput></screen>
28
29  <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
30  href="../x86/variables.xml"
31  xpointer="xpointer(//*[@os='e'])"/>
32
33<screen os="f"><userinput>export CLFS_ENDIAN=$(echo ${CLFS_ARCH} | sed -e 's/mipsel/LITTLE/' -e 's/mips/BIG/')
34if [ "${CLFS_ENDIAN}" = "LITTLE" ]; then
35  export CLFS_NOT_ENDIAN=BIG
36else
37  export CLFS_NOT_ENDIAN=LITTLE
38fi</userinput></screen>
39
40  <para os="m1">Now you will need to set the MIPS LEVEL. This determines how your
41uClibc is built. There are currently 5 MIPS ISA Levels. To keep things simple
42we are only using 2. For more information, go to
43<ulink url="http://www.linux-mips.org/wiki/Instruction_Set_Architecture"/></para>
44
45<screen os="m2"><userinput>export CLFS_MIPS_LEVEL="{mips level}"</userinput></screen>
46
47  <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
48  href="../x86/variables.xml"
49  xpointer="xpointer(//*[@os='g'])"/>
50
51<screen os="h"><userinput>echo export CLFS_HOST=\""${CLFS_HOST}\"" &gt;&gt; ~/.bashrc
52echo export CLFS_TARGET=\""${CLFS_TARGET}\"" &gt;&gt; ~/.bashrc
53echo export CLFS_ARCH=\""${CLFS_ARCH}\"" &gt;&gt; ~/.bashrc
54echo export CLFS_ENDIAN=\""${CLFS_ENDIAN}\"" &gt;&gt; ~/.bashrc
55echo export CLFS_NOT_ENDIAN=\""${CLFS_NOT_ENDIAN}\"" &gt;&gt; ~/.bashrc
56echo export CLFS_MIPS_LEVEL=\""${CLFS_MIPS_LEVEL}\"" &gt;&gt; ~/.bashrc</userinput></screen>
57
58  <table os="i">
59    <title>Processor Type and  Target Triplets</title>
60    <?dbfo table-width="5.5in" ?>
61
62    <tgroup cols="2">
63
64      <colspec colnum="1" colwidth="2in"   colname="Processor"/>
65      <colspec colnum="2" colwidth="2.5in" colname="Triplet"/>
66      <colspec colnum="3" colwidth="1in"   colname="MIPS Level"/>
67
68      <thead>
69        <row>
70          <entry>Processor</entry>
71          <entry>Target Triplet</entry>
72          <entry>MIPS Level</entry>
73        </row>
74      </thead>
75
76      <tbody>
77        <row>
78          <entry>MIPS 32 bits Little Endian</entry>
79          <entry>mipsel-unknown-linux-uclibc</entry>
80          <entry>1</entry>
81        </row>
82        <row>
83          <entry>MIPS 32 bits Big Endian</entry>
84          <entry>mips-unknown-linux-uclibc</entry>
85          <entry>1</entry>
86        </row>
87        <row>
88          <entry>MIPS 64 bits Little Endian</entry>
89          <entry>mips64el-unknown-linux-uclibc</entry>
90          <entry>3</entry>
91        </row>
92        <row>
93          <entry>MIPS 64 bits Big Endian</entry>
94          <entry>mips64-unknown-linux-uclibc</entry>
95          <entry>3</entry>
96        </row>
97      </tbody>
98
99    </tgroup>
100
101  </table>
102
103</sect1>
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