1 | <?xml version="1.0" encoding="ISO-8859-1"?> |
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" |
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3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [ |
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4 | <!ENTITY % general-entities SYSTEM "../../general.ent"> |
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5 | %general-entities; |
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6 | ]> |
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7 | |
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8 | <sect1 id="ch-cross-tools-variables"> |
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9 | <?dbhtml filename="variables.html"?> |
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10 | |
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11 | <title>Build Variables</title> |
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12 | |
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13 | <bridgehead renderas="sect4">Setting Host and Target</bridgehead> |
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14 | |
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15 | <para os="a">During the building of the cross-compile tools you will need to |
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16 | set a few variables that will be dependent on your particular needs. |
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17 | You will need to set the target triplet for the target architecture, and the |
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18 | CPU type. If you do not know what triplet or CPU type you want, |
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19 | you can use the table as a reference. Set |
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20 | the command using the method listed below:</para> |
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21 | |
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22 | <screen os="b"><userinput>export CLFS_HOST=$(echo ${MACHTYPE} | sed "s/-[^-]*/-cross/") |
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23 | export CLFS_TARGET=<replaceable>[target triplet]</replaceable> |
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24 | export CLFS_CPU=<replaceable>[cpu type]</replaceable></userinput></screen> |
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25 | |
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26 | <table os="i"> |
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27 | <title>Processor Type and Target Triplets</title> |
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28 | <?dbfo table-width="7.5in" ?> |
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29 | |
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30 | <tgroup cols="4"> |
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31 | |
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32 | <colspec colnum="1" colwidth="2.5in" colname="Processor"/> |
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33 | <colspec colnum="2" colwidth="2in" colname="Triplet"/> |
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34 | <colspec colnum="3" colwidth="0.5in" colname="CPU Type"/> |
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35 | <colspec colnum="4" colwidth="2.5in" colname="Note"/> |
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36 | |
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37 | <thead> |
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38 | <row> |
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39 | <entry>Processor</entry> |
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40 | <entry>Target Triplet</entry> |
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41 | <entry>CPU Type</entry> |
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42 | <entry>Note</entry> |
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43 | </row> |
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44 | </thead> |
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45 | |
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46 | <tbody> |
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47 | <row> |
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48 | <entry>486 Compatibles</entry> |
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49 | <entry>i486-linux-musl</entry> |
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50 | <entry>i486</entry> |
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51 | <entry>Intel's i486</entry> |
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52 | </row> |
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53 | <row> |
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54 | <entry>Pentium, K6, 586 Compatibles</entry> |
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55 | <entry>i586-linux-musl</entry> |
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56 | <entry>i586</entry> |
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57 | <entry>Intel Pentium without MMX</entry> |
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58 | </row> |
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59 | <row> |
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60 | <entry>Pentium II, Pentium III, Pentium 4</entry> |
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61 | <entry>i686-linux-musl</entry> |
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62 | <entry>i686</entry> |
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63 | <entry>PentiumPro instruction set</entry> |
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64 | </row> |
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65 | <row> |
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66 | <entry>Athlon</entry> |
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67 | <entry>i686-linux-musl</entry> |
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68 | <entry>athlon</entry> |
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69 | <entry>AMD 32 bit Athlon</entry> |
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70 | </row> |
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71 | <row> |
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72 | <entry>Opteron</entry> |
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73 | <entry>x86_64-linux-musl</entry> |
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74 | <entry>k8</entry> |
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75 | <entry>AMD K8 processors with x86-64</entry> |
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76 | </row> |
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77 | </tbody> |
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78 | |
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79 | </tgroup> |
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80 | |
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81 | </table> |
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82 | |
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83 | <para os="c">Now set the architecture of the CPU:</para> |
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84 | |
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85 | <screen os="d"><userinput>export CLFS_ARCH="x86"</userinput></screen> |
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86 | |
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87 | <para os="g">Now we will add this to <filename>~/.bashrc</filename>, just in |
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88 | case you have to exit and restart building later:</para> |
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89 | |
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90 | <screen os="h"><userinput>echo export CLFS_HOST=\""${CLFS_HOST}\"" >> ~/.bashrc |
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91 | echo export CLFS_TARGET=\""${CLFS_TARGET}\"" >> ~/.bashrc |
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92 | echo export CLFS_ARCH=\""${CLFS_ARCH}\"" >> ~/.bashrc |
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93 | echo export CLFS_CPU=\""${CLFS_CPU}\"" >> ~/.bashrc</userinput></screen> |
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94 | |
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95 | </sect1> |
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