source: chapter06/libffi.xml@ 71ab47c

multilib-10.1 multilib-before-cross
Last change on this file since 71ab47c was 71ab47c, checked in by Thomas Trepl <thomas@…>, 2 years ago

MultiLib: Merge changes from trunk

git-svn-id: http://svn.linuxfromscratch.org/LFS/branches/multilib@11703 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../general.ent">
5 %general-entities;
6]>
7
8<sect1 id="ch-system-libffi" role="wrap">
9 <?dbhtml filename="libffi.html"?>
10
11 <sect1info condition="script">
12 <productname>libffi</productname>
13 <productnumber>&libffi-version;</productnumber>
14 <address>&libffi-url;</address>
15 </sect1info>
16
17 <title>Libffi-&libffi-version;</title>
18
19 <indexterm zone="ch-system-libffi">
20 <primary sortas="a-libffi">libffi</primary>
21 </indexterm>
22
23 <sect2 role="package">
24 <title/>
25
26 <para>The Libffi library provides a portable, high level programming
27 interface to various calling conventions. This allows a programmer to call
28 any function specified by a call interface description at run time.</para>
29
30 <segmentedlist>
31 <segtitle>&buildtime;</segtitle>
32 <segtitle>&diskspace;</segtitle>
33
34 <seglistitem>
35 <seg>&libffi-ch6-sbu;</seg>
36 <seg>&libffi-ch6-du;</seg>
37 </seglistitem>
38 </segmentedlist>
39
40 </sect2>
41
42 <sect2 role="installation">
43 <title>Installation of Libffi</title>
44
45 <note>
46 <para>Similar to GMP, libffi builds with optimizations specific
47 to the proccesor in use. If building for another system, export
48 CFLAGS and CXXFLAGS to specify a generic build for your architecture.
49 If this is not done, all applications that link to libffi will trigger
50 Illegal Operation Errors.</para>
51 </note>
52<!--
53 <para>Modify the Makefile to install headers into the standard
54 <filename class="directory">/usr/include</filename> directory instead of
55 <filename class="directory">/usr/lib/libffi-&libffi-version;/include</filename>.</para>
56
57<screen><userinput remap="pre">sed -e '/^includesdir/ s/$(libdir).*$/$(includedir)/' \
58 -i include/Makefile.in
59
60sed -e '/^includedir/ s/=.*$/=@includedir@/' \
61 -e 's/^Cflags: -I${includedir}/Cflags:/' \
62 -i libffi.pc.in</userinput></screen>
63-->
64 <para>Prepare libffi for compilation:</para>
65
66<screen><userinput remap="configure">./configure --prefix=/usr --disable-static --with-gcc-arch=native</userinput></screen>
67
68 <variablelist>
69 <title>The meaning of the configure option:</title>
70
71 <varlistentry>
72 <term><parameter>--with-gcc-arch=native</parameter></term>
73 <listitem>
74 <para>Ensure gcc optimizes for the current system. If this
75 is not specified, the system is guessed and the code generated
76 may not be correct for some systems. If the generated code
77 will be copied from the native system to a less capable
78 system, use the less capable system as a parameter. For details
79 about alternative system types, see <ulink
80 url='https://gcc.gnu.org/onlinedocs/gcc-&gcc-version;/gcc/x86-Options.html'>
81 the x86 options in the gcc manual</ulink>.</para>
82 </listitem>
83 </varlistentry>
84
85 </variablelist>
86
87 <para>Compile the package:</para>
88
89<screen><userinput remap="make">make</userinput></screen>
90
91 <para>To test the results, issue:</para>
92
93<screen><userinput remap="test">make check</userinput></screen>
94
95 <para>Six tests, all related to test-callback.c, are known to fail.</para>
96
97 <para>Install the package:</para>
98
99<screen><userinput remap="install">make install</userinput></screen>
100
101 </sect2>
102
103 <!-- ~~~~~~~~~~~~~~~~~~~~ ABI 32 ~~~~~~~~~~~~~~~~~~~~ -->
104
105 <sect2 arch="ml_32,ml_all" role="installation">
106 <title>Installation of Libffi - 32-bit</title>
107
108 <para>Clean previous build:</para>
109
110<screen><userinput remap="pre">make distclean</userinput></screen>
111
112 <para>Prepare Libffi for compilation:</para>
113
114<screen><userinput remap="configure">CC="gcc -m32" CXX="g++ -m32" \
115./configure \
116 --prefix=/usr \
117 --disable-static \
118 --libdir=/usr/lib32 \
119 --with-gcc-arch=i686 \
120 --host=i686-pc-linux-gnu</userinput></screen>
121
122 <para>Compile the package:</para>
123
124<screen><userinput remap="make">make</userinput></screen>
125
126 <para>To test the results, issue:</para>
127
128<screen><userinput remap="test">make check</userinput></screen>
129
130 <para>Install the package:</para>
131
132<screen><userinput remap="install">make DESTDIR=$PWD/DESTDIR install
133cp -Rv DESTDIR/usr/lib32/* /usr/lib32
134rm -rf DESTDIR</userinput></screen>
135
136 </sect2>
137
138 <!-- ~~~~~~~~~~~~~~~~~~~~ ABI x32 ~~~~~~~~~~~~~~~~~~~~ -->
139
140 <sect2 arch="ml_x32,ml_all" role="installation">
141 <title>Installation of Libffi - x32-bit</title>
142
143 <para>Clean previous build:</para>
144
145<screen><userinput remap="pre">make distclean</userinput></screen>
146
147 <para>Prepare Libffi for compilation:</para>
148
149<screen><userinput remap="configure">CC="gcc -mx32" CXX="g++ -mx32" \
150./configure \
151 --prefix=/usr \
152 --disable-static \
153 --with-gcc-arch=x86_64 \
154 --libdir=/usr/libx32 \
155 --host=x86_64-unknown-linux-gnux32</userinput></screen>
156
157 <para>Compile the package:</para>
158
159<screen><userinput remap="make">make</userinput></screen>
160
161 <para>To test the results, issue:</para>
162
163<screen><userinput remap="test">make check</userinput></screen>
164
165 <para>Install the package:</para>
166
167<screen><userinput remap="install">make DESTDIR=$PWD/DESTDIR install
168cp -Rv DESTDIR/usr/libx32/* /usr/libx32
169rm -rf DESTDIR</userinput></screen>
170
171 </sect2>
172
173 <sect2 id="contents-libffi" role="content">
174 <title>Contents of Libffi</title>
175
176 <segmentedlist>
177 <segtitle>Installed library</segtitle>
178
179 <seglistitem>
180 <seg>libffi.so</seg>
181 </seglistitem>
182 </segmentedlist>
183
184 <variablelist>
185 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
186 <?dbfo list-presentation="list"?>
187 <?dbhtml list-presentation="table"?>
188
189 <varlistentry id="libffi">
190 <term><filename class="libraryfile">libffi</filename></term>
191 <listitem>
192 <para>contains the libffi API functions.</para>
193 <indexterm zone="ch-system-libffi">
194 <primary sortas="c-libffi">libffi</primary>
195 </indexterm>
196 </listitem>
197 </varlistentry>
198 </variablelist>
199
200 </sect2>
201
202</sect1>
203
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