[55ab27c] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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[aa18ac0] | 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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[55ab27c] | 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-system-yaboot" role="wrap">
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| 9 | <?dbhtml filename="yaboot.html"?>
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| 10 |
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| 11 | <title>Yaboot-&yaboot-version;</title>
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| 12 |
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| 13 | <indexterm zone="ch-system-yaboot">
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| 14 | <primary sortas="a-Yaboot">Yaboot</primary>
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| 15 | </indexterm>
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| 16 |
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[dabbced] | 17 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[c06e893] | 18 | href="../ppc/yaboot.xml"
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| 19 | xpointer="xpointer(//*[@role='package'])"/>
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[55ab27c] | 20 |
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| 21 | <sect2 role="installation">
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| 22 | <title>Installation of Yaboot</title>
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| 23 |
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[c06e893] | 24 | <para>Existing multilib distributions alter gcc to default to 32-bit
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| 25 | output. Because our gcc defaults to 64-bit, we need to pass appropriate
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[a5f7c53e] | 26 | options to both the compiler and the linker. To prevent the build from
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| 27 | failing due to compiler warnings, the -Werror flag is removed. The
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| 28 | Makefile already overrides any CC and ignores LDFLAGS in favour of
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| 29 | its own variables, so we need to use the following seds for a
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| 30 | successful compile and install.</para>
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[55ab27c] | 31 |
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[c06e893] | 32 | <screen><userinput>sed -i -e "s/\(-print-libgcc-file-name\)/${BUILD32} \1/" \
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[a5f7c53e] | 33 | -e "s/-Werror//" \
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[c06e893] | 34 | -e "s/\(-Bstatic\)/-melf32ppclinux \1/" Makefile
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| 35 | </userinput></screen>
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[55ab27c] | 36 |
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[c06e893] | 37 | <variablelist os="j">
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| 38 | <title>The meaning of the sed parameters:</title>
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[55ab27c] | 39 |
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[c06e893] | 40 | <varlistentry>
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| 41 | <term><parameter>"s/\(-print-libgcc-file-name\)/${BUILD32} \1/"</parameter></term>
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[55ab27c] | 42 | <listitem>
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[c06e893] | 43 | <para>This picks a convenient place within the Makefile's lgcc
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[e3196bd] | 44 | variable and inserts the flag to force <command>gcc</command> to
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[c06e893] | 45 | create 32-bit code when compiling yaboot.</para>
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[55ab27c] | 46 | </listitem>
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| 47 | </varlistentry>
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[a5f7c53e] | 48 | <varlistentry>
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| 49 | <term><parameter>"s/-Werror//"</parameter></term>
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| 50 | <listitem>
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| 51 | <para>This deletes the -Werror flag from the Makefile.</para>
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| 52 | </listitem>
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| 53 | </varlistentry>
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[c06e893] | 54 | <varlistentry>
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| 55 | <term><parameter>"s/\(-Bstatic\)/-melf32ppclinux \1/"</parameter></term>
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[55ab27c] | 56 | <listitem>
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[c06e893] | 57 | <para>This picks the end of the LFLAGS which the Makefile passes to
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[e3196bd] | 58 | the linker to create the second-stage linux loader, and inserts a
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| 59 | flag to force <command>ld</command> to use a suitable 32-bit
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| 60 | emulation picked from the output of <command>'ld -V'</command>.</para>
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[55ab27c] | 61 | </listitem>
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| 62 | </varlistentry>
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| 63 |
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[c06e893] | 64 | </variablelist>
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[55ab27c] | 65 |
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[dabbced] | 66 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[c06e893] | 67 | href="../ppc/yaboot.xml"
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[291bd8b] | 68 | xpointer="xpointer(//*[@os='a'])"/>
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[55ab27c] | 69 |
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[dabbced] | 70 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[c06e893] | 71 | href="../ppc/yaboot.xml"
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[291bd8b] | 72 | xpointer="xpointer(//*[@os='b'])"/>
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[55ab27c] | 73 |
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[dabbced] | 74 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[c06e893] | 75 | href="../ppc/yaboot.xml"
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[291bd8b] | 76 | xpointer="xpointer(//*[@os='c'])"/>
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[55ab27c] | 77 |
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[291bd8b] | 78 | <screen os="d"><userinput>CFLAGS="${BUILD32}" make PREFIX=/usr</userinput></screen>
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[9619f1a] | 79 |
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[dabbced] | 80 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[c06e893] | 81 | href="../ppc/yaboot.xml"
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[291bd8b] | 82 | xpointer="xpointer(//*[@os='e'])"/>
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[c06e893] | 83 |
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[bc5db55] | 84 | <important os="j0">
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| 85 | <para>The multilib install of yaboot can fail if you miss any of the
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| 86 | patches or seds, or omit the CFLAGS variable. <command>ld</command> will
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| 87 | issue warnings, but the install will appear to complete successfully.
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| 88 | That would result in an unbootable system, so you need to log the output
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| 89 | to check it.</para>
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| 90 | </important>
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| 91 |
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[291bd8b] | 92 | <screen os='f'><userinput>make PREFIX=/usr install 2>&1 | tee instlog</userinput></screen>
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[9619f1a] | 93 |
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[291bd8b] | 94 | <para os='g'>To ensure that the install was successful, run the following
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[9619f1a] | 95 | command:</para>
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| 96 |
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[291bd8b] | 97 | <screen os='h'><userinput>grep 'powerpc:common64' instlog</userinput></screen>
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[9619f1a] | 98 |
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[291bd8b] | 99 | <para os='i'>If the command gave you <emphasis>any</emphasis> output
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[bc5db55] | 100 | (... is incompatible with powerpc:common output) the build of yaboot is
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| 101 | broken and you will have to correct your error(s) and repeat it.</para>
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[55ab27c] | 102 |
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| 103 | </sect2>
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| 104 |
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[dabbced] | 105 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[c06e893] | 106 | href="../ppc/yaboot.xml"
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| 107 | xpointer="xpointer(id('contents-yaboot'))"/>
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| 108 |
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[55ab27c] | 109 | </sect1>
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