1 | <sect1 id="ch05-binutils-pass1">
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2 | <title>Installing Binutils-&binutils-version; - Pass 1</title>
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3 | <?dbhtml filename="binutils-pass1.html" dir="chapter05"?>
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4 |
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5 | <screen>Estimated build time: &binutils-time-tools-pass1;
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6 | Estimated required disk space: &binutils-compsize-tools-pass1;</screen>
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7 |
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8 | <para>For the package details see <xref linkend="contents-binutils"/>.</para>
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9 |
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10 | <sect2><title> </title><para> </para></sect2>
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11 |
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12 | <sect2>
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13 | <title>Installation of Binutils</title>
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14 |
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15 | <para>It is important that Binutils be the first package to get compiled,
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16 | because both Glibc and GCC perform various tests on the available linker and
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17 | assembler to determine which of their own features to enable.</para>
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18 |
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19 | <note><para>Even though Binutils is an important toolchain package, we are not
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20 | going to run the test suite at this early stage. First, the test suite framework
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21 | is not yet in place and second, the programs from this first pass will soon be
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22 | overwritten by those installed in the second pass.</para></note>
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23 |
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24 | <para>This package is known to behave badly when you have changed its default
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25 | optimization flags (including the -march and -mcpu options). Therefore, if
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26 | you have defined any environment variables that override default
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27 | optimizations, such as CFLAGS and CXXFLAGS, we recommend unsetting or
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28 | modifying them when building Binutils.</para>
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29 |
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30 | <para>The Binutils documentation recommends building Binutils outside of the
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31 | source directory in a dedicated build directory:</para>
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32 |
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33 | <screen><userinput>mkdir ../binutils-build
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34 | cd ../binutils-build</userinput></screen>
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35 |
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36 | <note><para>If you want the SBU values listed in the rest of the book to be of
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37 | any use, you will have to measure the time it takes to build this package. To
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38 | achieve this easily, you could do something like:
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39 | <userinput>time { ./configure ... && ... && ... && make install; }</userinput>.</para></note>
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40 |
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41 | <para>Now prepare Binutils for compilation:</para>
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42 |
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43 | <screen><userinput>../binutils-&binutils-version;/configure \
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44 | --prefix=/tools --disable-nls</userinput></screen>
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45 |
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46 | <para>The meaning of the configure options:</para>
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47 |
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48 | <itemizedlist>
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49 | <listitem><para><userinput>--prefix=/tools</userinput>: This tells the
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50 | configure script to prepare to install the Binutils programs in the
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51 | <filename>/tools</filename> directory.</para></listitem>
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52 |
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53 | <listitem><para><userinput>--disable-nls</userinput>: This disables
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54 | internationalization (a word often shortened to i18n). We don't need this
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55 | for our static programs and <emphasis>nls</emphasis> often causes problems
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56 | when linking statically.</para></listitem>
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57 | </itemizedlist>
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58 |
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59 | <para>Continue with compiling the package:</para>
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60 |
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61 | <screen><userinput>make configure-host
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62 | make LDFLAGS="-all-static"</userinput></screen>
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63 |
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64 | <para>The meaning of the make parameters:</para>
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65 |
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66 | <itemizedlist>
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67 | <listitem><para><userinput>configure-host</userinput>: This forces all the
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68 | subdirectories to be configured immediately. A statically linked build will
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69 | fail without it. We therefore use this option to work around the
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70 | problem.</para></listitem>
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71 |
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72 | <listitem><para><userinput>LDFLAGS="-all-static"</userinput>: This tells the
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73 | linker that all the Binutils programs should be linked statically. However,
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74 | strictly speaking, <userinput>"-all-static"</userinput> is first passed to the
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75 | <emphasis>libtool</emphasis> program which then passes
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76 | <userinput>"-static"</userinput> on to the linker.</para></listitem>
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77 | </itemizedlist>
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78 |
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79 | <para>And install the package:</para>
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80 |
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81 | <screen><userinput>make install</userinput></screen>
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82 |
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83 | <para>Now prepare the linker for the "locking in" of Glibc later on:</para>
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84 |
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85 | <screen><userinput>make -C ld clean
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86 | make -C ld LDFLAGS="-all-static" LIB_PATH=/tools/lib</userinput></screen>
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87 |
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88 | <para>The meaning of the make parameters:</para>
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89 |
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90 | <itemizedlist>
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91 | <listitem><para><userinput>-C ld clean</userinput>: This tells the make program
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92 | to remove all the compiled files, but only in the <filename>ld</filename>
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93 | subdirectory.</para></listitem>
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94 |
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95 | <listitem><para><userinput>-C ld LDFLAGS="-all-static" LIB_PATH=/tools/lib</userinput>:
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96 | This option rebuilds everything in the <filename>ld</filename> subdirectory.
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97 | Specifying the LIB_PATH makefile variable on the command line allows us to
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98 | override the default value and have it point to our temporary tools location.
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99 | The value of this variable specifies the linker's default library search path.
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100 | You'll see how this preparation is used later on in the
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101 | chapter.</para></listitem>
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102 | </itemizedlist>
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103 |
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104 | <!-- HACK - Force some whitespace to appease tidy -->
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105 | <literallayout></literallayout>
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106 |
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107 | <warning><para>Do not yet remove the Binutils build and source directories. You
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108 | will need them again in their current state a bit further on in this
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109 | chapter.</para></warning>
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110 |
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111 | <!-- HACK - Force some whitespace to appease tidy -->
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112 | <literallayout></literallayout>
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113 |
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114 | </sect2>
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115 |
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116 | </sect1>
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117 |
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