blob: c3bf1f117e18376bd58433f2088e17cd8d04756b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!ENTITY % general-entities SYSTEM "../general.ent">
%general-entities;
]>
<sect1 id="ch-tools-binutils-pass1" role="wrap">
<?dbhtml filename="binutils-pass1.html"?>
<sect1info condition="script">
<productname>binutils-pass1</productname>
<productnumber>&binutils-version;</productnumber>
<address>&binutils-url;</address>
</sect1info>
<title>Binutils-&binutils-version; - Pass 1</title>
<indexterm zone="ch-tools-binutils-pass1">
<primary sortas="a-Binutils">Binutils</primary>
<secondary>tools, pass 1</secondary>
</indexterm>
<sect2 role="package">
<title/>
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
href="../chapter08/binutils.xml"
xpointer="xpointer(/sect1/sect2[1]/para[1])"/>
<segmentedlist>
<segtitle>&buildtime;</segtitle>
<segtitle>&diskspace;</segtitle>
<seglistitem>
<seg>&binutils-tmpp1-sbu;</seg>
<seg>&binutils-tmpp1-du;</seg>
</seglistitem>
</segmentedlist>
</sect2>
<sect2 role="installation">
<title>Installation of Cross Binutils</title>
<note><para>Go back and re-read the notes in the section titled <xref
linkend="ch-tools-generalinstructions"/>.
Understanding the notes labeled important can save you a lot
of problems later.</para></note>
<para>It is important that Binutils be the first package compiled
because both Glibc and GCC perform various tests on the available
linker and assembler to determine which of their own features to
enable.</para>
<para>The Binutils documentation recommends building Binutils
in a dedicated build directory:</para>
<screen><userinput remap="pre">mkdir -v build
cd build</userinput></screen>
<note>
<para>In order for the SBU values listed in the rest of the book
to be of any use, measure the time it takes to build this package from
the configuration, up to and including the first install. To achieve
this easily, wrap the commands in a <command>time</command>
command like this: <userinput>time { ../configure ... && make
&& make install; }</userinput>.</para>
</note>
<para>Now prepare Binutils for compilation:</para>
<screen><userinput remap="configure">../configure --prefix=$LFS/tools \
--with-sysroot=$LFS \
--target=$LFS_TGT \
--disable-nls \
--enable-gprofng=no \
--disable-werror \
--enable-default-hash-style=gnu</userinput></screen>
<variablelist>
<title>The meaning of the configure options:</title>
<varlistentry>
<term><parameter>--prefix=$LFS/tools</parameter></term>
<listitem>
<para>This tells the configure script to prepare to install the
Binutils programs in the <filename
class="directory">$LFS/tools</filename> directory.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>--with-sysroot=$LFS</parameter></term>
<listitem>
<para>For cross compilation, this tells the build system to look in
$LFS for the target system libraries as needed.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><envar>--target=$LFS_TGT</envar></term>
<listitem>
<para>Because the machine description in the <envar>LFS_TGT</envar>
variable is slightly different than the value returned by the
<command>config.guess</command> script, this switch will tell the
<command>configure</command> script to adjust binutil's build system
for building a cross linker. </para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>--disable-nls</parameter></term>
<listitem>
<para>This disables internationalization as i18n is not needed for the
temporary tools.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>--enable-gprofng=no</parameter></term>
<listitem>
<para>This disables building gprofng which is not needed for the
temporary tools.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>--disable-werror</parameter></term>
<listitem>
<para>This prevents the build from stopping in the event that there
are warnings from the host's compiler.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>--enable-default-hash-style=gnu</parameter></term>
<listitem>
<para>By default, the linker would generate both the GNU-style
hash table and the classic ELF hash table for shared libraries and
dynamically linked executables. The hash tables are only intended
for a dynamic linker to perform symbol lookup. On LFS the dynamic
linker (provided by the Glibc package) will always use the
GNU-style hash table which is faster to query. So the classic
ELF hash table is completely useless. This makes the the linker
only generate the GNU-style hash table by default, so we can avoid
wasting time to generate the classic ELF hash table when we build
the packages, or wasting disk space to store it.</para>
</listitem>
</varlistentry>
</variablelist>
<para>Continue with compiling the package:</para>
<screen><userinput remap="make">make</userinput></screen>
<para>Install the package:</para>
<screen><userinput remap="install">make install</userinput></screen>
</sect2>
<sect2 role="content">
<title/>
<para>Details on this package are located in
<xref linkend="contents-binutils" role="."/></para>
</sect2>
</sect1>
|
