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-glibc-headers" role="wrap"> |
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9 | <?dbhtml filename="glibc-headers.html"?> |
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10 | |
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11 | <title>Glibc-&glibc-version; Headers</title> |
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12 | |
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13 | <indexterm zone="ch-cross-tools-glibc-headers"> |
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14 | <primary sortas="a-Glibc">Glibc</primary> |
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15 | <secondary>cross tools, headers</secondary> |
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16 | </indexterm> |
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17 | |
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18 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
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19 | href="../common/glibc.xml" |
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20 | xpointer="xpointer(//*[@role='package'])"/> |
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21 | |
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22 | <sect2 role="installation"> |
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23 | <title>Installation of Glibc Headers</title> |
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24 | |
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25 | <para os="s1">The following sed removes a dependency of gcc 3.4.x from |
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26 | the Glibc we are using in Cross-LFS. The reason we are changing it is |
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27 | because this only installs the headers; no compiling takes place. In the |
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28 | next Glibc chapter, we use the GCC that's built right after this chapter.</para> |
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29 | |
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30 | <screen os="s2"><userinput>cp configure{,.orig} |
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31 | sed -e 's/3.4/3.[0-9]/g' configure.orig > configure</userinput></screen> |
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32 | |
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33 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
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34 | href="glibc.xml" |
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35 | xpointer="xpointer(//*[@os='u1'])"/> |
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36 | |
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37 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
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38 | href="glibc.xml" |
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39 | xpointer="xpointer(//*[@os='u2'])"/> |
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40 | |
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41 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
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42 | href="../common/glibc.xml" |
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43 | xpointer="xpointer(//*[@os='b'])"/> |
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44 | |
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45 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
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46 | href="../common/glibc.xml" |
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47 | xpointer="xpointer(//*[@os='c'])"/> |
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48 | |
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49 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
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50 | href="../common/glibc.xml" |
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51 | xpointer="xpointer(//*[@os='d'])"/> |
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52 | |
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53 | <screen os="e"><userinput>echo "libc_cv_forced_unwind=yes" > config.cache |
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54 | echo "libc_cv_c_cleanup=yes" >> config.cache |
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55 | echo "libc_cv_arm_tls=yes" >> config.cache</userinput></screen> |
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56 | |
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57 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
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58 | href="../common/glibc.xml" |
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59 | xpointer="xpointer(//*[@os='f'])"/> |
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60 | |
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61 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
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62 | href="../common/glibc.xml" |
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63 | xpointer="xpointer(//*[@os='g'])"/> |
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64 | |
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65 | <xi:include xmlns:xi="http://www.w3.org/2003/XInclude" |
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66 | href="../common/glibc.xml" |
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67 | xpointer="xpointer(//*[@os='h'])"/> |
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68 | |
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69 | <screen os="i"><userinput>CC=gcc ../glibc-&glibc-version;/configure --prefix=/usr \ |
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70 | --host=${CLFS_TARGET} --build=${CLFS_HOST} \ |
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71 | --with-headers=${CLFS}/usr/include --cache-file=config.cache</userinput></screen> |
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72 | |
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73 | <variablelist os="dj"> |
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74 | <title>The meaning of the configure options:</title> |
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75 | |
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76 | <varlistentry os="dj1"> |
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77 | <term><parameter>CC=gcc</parameter></term> |
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78 | <listitem> |
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79 | <para>Tells Glibc to use the host's GCC compiler.</para> |
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80 | </listitem> |
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81 | </varlistentry> |
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82 | |
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83 | <varlistentry os="dj2"> |
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84 | <term><parameter>--with-headers=${CLFS}/usr/include</parameter></term> |
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85 | <listitem> |
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86 | <para>This tells Glibc to compile itself against the headers |
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87 | recently installed to the <filename class="directory">${CLFS}/usr/include</filename> |
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88 | directory, so that it knows exactly what features the kernel has |
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89 | and can optimize itself accordingly.</para> |
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90 | </listitem> |
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91 | </varlistentry> |
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92 | |
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93 | </variablelist> |
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94 | |
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95 | <para os="k">Now, install the headers:</para> |
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96 | |
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97 | <screen os="l"><userinput>make install-headers</userinput></screen> |
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98 | |
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99 | <para os="m">Some files aren't installed by the above command, so |
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100 | we will copy the additional header files we need.</para> |
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101 | |
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102 | <para os="n">First we will copy a common file over to <filename |
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103 | class="directory">${CLFS}/usr/include</filename>:</para> |
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104 | |
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105 | <screen os="o"><userinput>cp -v bits/stdio_lim.h ${CLFS}/usr/include/bits</userinput></screen> |
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106 | |
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107 | <para os="p">Now we will create a blank stub file:</para> |
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108 | |
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109 | <screen os="q"><userinput>touch ${CLFS}/usr/include/gnu/stubs.h</userinput></screen> |
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110 | |
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111 | <para os="r">Another header is needed for NPTL:</para> |
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112 | |
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113 | <screen os="s"><userinput>cp -v ../glibc-&glibc-version;/ports/sysdeps/unix/sysv/linux/arm/nptl/bits/pthreadtypes.h \ |
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114 | ${CLFS}/usr/include/bits</userinput></screen> |
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115 | |
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116 | </sect2> |
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117 | |
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118 | <sect2 role="content" id="contents-glibc-headers"> |
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119 | <title/> |
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120 | |
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121 | <para>Details on this package are located in <xref |
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122 | linkend="contents-glibc" role="."/></para> |
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123 | |
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124 | </sect2> |
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125 | |
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126 | </sect1> |
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