[b0aabe0] | 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-libffi" role="wrap">
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| 9 | <?dbhtml filename="libffi.html"?>
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| 10 |
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| 11 | <sect1info condition="script">
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| 12 | <productname>libffi</productname>
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| 13 | <productnumber>&libffi-version;</productnumber>
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| 14 | <address>&libffi-url;</address>
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| 15 | </sect1info>
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| 16 |
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[e03d5e49] | 17 | <title>Libffi-&libffi-version;</title>
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[b0aabe0] | 18 |
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| 19 | <indexterm zone="ch-system-libffi">
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| 20 | <primary sortas="a-libffi">libffi</primary>
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| 21 | </indexterm>
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| 22 |
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| 23 | <sect2 role="package">
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| 24 | <title/>
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| 25 |
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[e03d5e49] | 26 | <para>The Libffi library provides a portable, high level programming
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[b0aabe0] | 27 | interface to various calling conventions. This allows a programmer to call
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| 28 | any function specified by a call interface description at run time.</para>
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| 29 |
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| 30 | <segmentedlist>
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| 31 | <segtitle>&buildtime;</segtitle>
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| 32 | <segtitle>&diskspace;</segtitle>
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| 33 |
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| 34 | <seglistitem>
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[6dfcfecc] | 35 | <seg>&libffi-fin-sbu;</seg>
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| 36 | <seg>&libffi-fin-du;</seg>
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[b0aabe0] | 37 | </seglistitem>
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| 38 | </segmentedlist>
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| 39 |
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| 40 | </sect2>
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| 41 |
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| 42 | <sect2 role="installation">
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[e03d5e49] | 43 | <title>Installation of Libffi</title>
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[b0aabe0] | 44 |
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[8dbae30] | 45 | <note>
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| 46 | <para>Similar to GMP, libffi builds with optimizations specific
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| 47 | to the proccesor in use. If building for another system, export
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| 48 | CFLAGS and CXXFLAGS to specify a generic build for your architecture.
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| 49 | If this is not done, all applications that link to libffi will trigger
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| 50 | Illegal Operation Errors.</para>
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| 51 | </note>
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[6dfcfecc] | 52 |
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[b0aabe0] | 53 | <para>Prepare libffi for compilation:</para>
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| 54 |
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[3ba82a8] | 55 | <screen><userinput remap="configure">./configure --prefix=/usr \
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| 56 | --disable-static \
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| 57 | --with-gcc-arch=native \
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| 58 | --disable-exec-static-tramp </userinput></screen>
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[b8b65b7] | 59 |
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| 60 | <variablelist>
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| 61 | <title>The meaning of the configure option:</title>
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| 62 |
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| 63 | <varlistentry>
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| 64 | <term><parameter>--with-gcc-arch=native</parameter></term>
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| 65 | <listitem>
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[6dfcfecc] | 66 | <para>Ensure GCC optimizes for the current system. If this
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[b8b65b7] | 67 | is not specified, the system is guessed and the code generated
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| 68 | may not be correct for some systems. If the generated code
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| 69 | will be copied from the native system to a less capable
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| 70 | system, use the less capable system as a parameter. For details
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| 71 | about alternative system types, see <ulink
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[2c53f52] | 72 | url='https://gcc.gnu.org/onlinedocs/gcc-&gcc-version;/gcc/x86-Options.html'>
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[6dfcfecc] | 73 | the x86 options in the GCC manual</ulink>.</para>
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[b8b65b7] | 74 | </listitem>
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| 75 | </varlistentry>
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| 76 |
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| 77 | </variablelist>
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[b0aabe0] | 78 |
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| 79 | <para>Compile the package:</para>
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| 80 |
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| 81 | <screen><userinput remap="make">make</userinput></screen>
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| 82 |
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| 83 | <para>To test the results, issue:</para>
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| 84 |
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| 85 | <screen><userinput remap="test">make check</userinput></screen>
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| 86 |
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| 87 | <para>Install the package:</para>
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| 88 |
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| 89 | <screen><userinput remap="install">make install</userinput></screen>
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| 90 |
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| 91 | </sect2>
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| 92 |
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[6dfcfecc] | 93 | <!-- - - - - - - - - - -->
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| 94 | <!-- Multilib - 32bit -->
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| 95 | <!-- - - - - - - - - - -->
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[fd48baa] | 96 |
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| 97 | <sect2 arch="ml_32,ml_all" role="installation">
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[6dfcfecc] | 98 | <title>Installation of Libffi - 32bit</title>
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[b3f1ebb3] | 99 |
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| 100 | <para>Clean previous build:</para>
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| 101 |
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| 102 | <screen><userinput remap="pre">make distclean</userinput></screen>
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| 103 |
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| 104 | <para>Prepare Libffi for compilation:</para>
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| 105 |
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[6dfcfecc] | 106 | <screen><userinput remap="configure">CC="gcc -m32" CXX="g++ -m32" ./configure \
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[b3f1ebb3] | 107 | --prefix=/usr \
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| 108 | --disable-static \
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[0ebda11] | 109 | --libdir=/usr/lib32 \
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[b3f1ebb3] | 110 | --with-gcc-arch=i686 \
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| 111 | --host=i686-pc-linux-gnu</userinput></screen>
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| 112 |
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| 113 | <para>Compile the package:</para>
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| 114 |
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| 115 | <screen><userinput remap="make">make</userinput></screen>
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| 116 |
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| 117 | <para>To test the results, issue:</para>
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| 118 |
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| 119 | <screen><userinput remap="test">make check</userinput></screen>
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| 120 |
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| 121 | <para>Install the package:</para>
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| 122 |
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| 123 | <screen><userinput remap="install">make DESTDIR=$PWD/DESTDIR install
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[0ebda11] | 124 | cp -Rv DESTDIR/usr/lib32/* /usr/lib32
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[b3f1ebb3] | 125 | rm -rf DESTDIR</userinput></screen>
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| 126 |
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[6dfcfecc] | 127 | </sect2><!-- m32 -->
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[b3f1ebb3] | 128 |
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[6dfcfecc] | 129 | <!-- - - - - - - - - - -->
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| 130 | <!-- Multilib - x32bit -->
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| 131 | <!-- - - - - - - - - - -->
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[fd48baa] | 132 |
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| 133 | <sect2 arch="ml_x32,ml_all" role="installation">
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[bd1abf6] | 134 | <title>Installation of Libffi - x32bit</title>
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[b3f1ebb3] | 135 |
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| 136 | <para>Clean previous build:</para>
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| 137 |
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| 138 | <screen><userinput remap="pre">make distclean</userinput></screen>
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| 139 |
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| 140 | <para>Prepare Libffi for compilation:</para>
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| 141 |
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[6dfcfecc] | 142 | <screen><userinput remap="configure">CC="gcc -mx32" CXX="g++ -mx32" ./configure \
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| 143 | --prefix=/usr \
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| 144 | --disable-static \
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[0ebda11] | 145 | --libdir=/usr/libx32 \
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[6dfcfecc] | 146 | --with-gcc-arch=x86_64 \
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[b3f1ebb3] | 147 | --host=x86_64-unknown-linux-gnux32</userinput></screen>
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| 148 |
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| 149 | <para>Compile the package:</para>
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| 150 |
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| 151 | <screen><userinput remap="make">make</userinput></screen>
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| 152 |
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| 153 | <para>To test the results, issue:</para>
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| 154 |
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| 155 | <screen><userinput remap="test">make check</userinput></screen>
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| 156 |
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| 157 | <para>Install the package:</para>
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| 158 |
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| 159 | <screen><userinput remap="install">make DESTDIR=$PWD/DESTDIR install
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[0ebda11] | 160 | cp -Rv DESTDIR/usr/libx32/* /usr/libx32
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[b3f1ebb3] | 161 | rm -rf DESTDIR</userinput></screen>
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| 162 |
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[6dfcfecc] | 163 | </sect2><!-- mx32 -->
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[b3f1ebb3] | 164 |
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[b0aabe0] | 165 | <sect2 id="contents-libffi" role="content">
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[e03d5e49] | 166 | <title>Contents of Libffi</title>
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[b0aabe0] | 167 |
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| 168 | <segmentedlist>
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| 169 | <segtitle>Installed library</segtitle>
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| 170 |
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| 171 | <seglistitem>
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| 172 | <seg>libffi.so</seg>
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| 173 | </seglistitem>
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| 174 | </segmentedlist>
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| 175 |
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| 176 | <variablelist>
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| 177 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 178 | <?dbfo list-presentation="list"?>
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| 179 | <?dbhtml list-presentation="table"?>
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| 180 |
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| 181 | <varlistentry id="libffi">
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| 182 | <term><filename class="libraryfile">libffi</filename></term>
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| 183 | <listitem>
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[4c8c128] | 184 | <para>contains the foreign function interface API functions</para>
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[b0aabe0] | 185 | <indexterm zone="ch-system-libffi">
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| 186 | <primary sortas="c-libffi">libffi</primary>
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| 187 | </indexterm>
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| 188 | </listitem>
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| 189 | </varlistentry>
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| 190 | </variablelist>
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| 191 |
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| 192 | </sect2>
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| 193 |
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| 194 | </sect1>
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| 195 |
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