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-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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17 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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18 | href="../ppc/yaboot.xml" |
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19 | xpointer="xpointer(//*[@role='package'])"/> |
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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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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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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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31 | |
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32 | <screen><userinput>sed -i -e "s/\(-print-libgcc-file-name\)/${BUILD32} \1/" \ |
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33 | -e "s/-Werror//" \ |
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34 | -e "s/\(-Bstatic\)/-melf32ppclinux \1/" Makefile |
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35 | </userinput></screen> |
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36 | |
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37 | <variablelist os="j"> |
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38 | <title>The meaning of the sed parameters:</title> |
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39 | |
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40 | <varlistentry> |
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41 | <term><parameter>"s/\(-print-libgcc-file-name\)/${BUILD32} \1/"</parameter></term> |
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42 | <listitem> |
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43 | <para>This picks a convenient place within the Makefile's lgcc |
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44 | variable and inserts the flag to force <command>gcc</command> to |
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45 | create 32-bit code when compiling yaboot.</para> |
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46 | </listitem> |
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47 | </varlistentry> |
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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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54 | <varlistentry> |
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55 | <term><parameter>"s/\(-Bstatic\)/-melf32ppclinux \1/"</parameter></term> |
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56 | <listitem> |
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57 | <para>This picks the end of the LFLAGS which the Makefile passes to |
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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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61 | </listitem> |
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62 | </varlistentry> |
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63 | |
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64 | </variablelist> |
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65 | |
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66 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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67 | href="../ppc/yaboot.xml" |
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68 | xpointer="xpointer(//*[@os='p3'])"/> |
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69 | |
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70 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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71 | href="../ppc/yaboot.xml" |
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72 | xpointer="xpointer(//*[@os='p4'])"/> |
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73 | |
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74 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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75 | href="../ppc/yaboot.xml" |
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76 | xpointer="xpointer(//*[@os='p5'])"/> |
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77 | |
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78 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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79 | href="../ppc/yaboot.xml" |
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80 | xpointer="xpointer(//*[@os='p6'])"/> |
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81 | |
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82 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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83 | href="../ppc/yaboot.xml" |
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84 | xpointer="xpointer(//*[@os='a'])"/> |
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85 | |
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86 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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87 | href="../ppc/yaboot.xml" |
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88 | xpointer="xpointer(//*[@os='b'])"/> |
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89 | |
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90 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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91 | href="../ppc/yaboot.xml" |
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92 | xpointer="xpointer(//*[@os='c'])"/> |
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93 | |
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94 | <screen os="d"><userinput>CFLAGS="${BUILD32}" make PREFIX=/usr</userinput></screen> |
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95 | |
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96 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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97 | href="../ppc/yaboot.xml" |
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98 | xpointer="xpointer(//*[@os='e'])"/> |
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99 | |
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100 | <important os="j0"> |
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101 | <para>The multilib install of yaboot can fail if you miss any of the |
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102 | patches or seds, or omit the CFLAGS variable. <command>ld</command> will |
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103 | issue warnings, but the install will appear to complete successfully. |
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104 | That would result in an unbootable system, so you need to log the output |
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105 | to check it.</para> |
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106 | </important> |
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107 | |
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108 | <screen os='f'><userinput>make PREFIX=/usr install 2>&1 | tee instlog</userinput></screen> |
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109 | |
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110 | <para os='g'>To ensure that the install was successful, run the following |
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111 | command:</para> |
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112 | |
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113 | <screen os='h'><userinput>grep 'powerpc:common64' instlog</userinput></screen> |
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114 | |
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115 | <para os='i'>If the command gave you <emphasis>any</emphasis> output |
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116 | (... is incompatible with powerpc:common output) the build of yaboot is |
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117 | broken and you will have to correct your error(s) and repeat it.</para> |
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118 | |
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119 | </sect2> |
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120 | |
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121 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" |
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122 | href="../ppc/yaboot.xml" |
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123 | xpointer="xpointer(id('contents-yaboot'))"/> |
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124 | |
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125 | </sect1> |
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