[673b0d8] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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[b06ca36] | 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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[673b0d8] | 4 | <!ENTITY % general-entities SYSTEM "../general.ent">
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| 5 | %general-entities;
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| 6 | ]>
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[6a82dd9] | 7 |
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[81fd230] | 8 | <sect1 id="ch-system-gcc" role="wrap">
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[6a82dd9] | 9 | <?dbhtml filename="gcc.html"?>
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| 10 |
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[e747759] | 11 | <sect1info condition="script">
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| 12 | <productname>gcc</productname>
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| 13 | <productnumber>&gcc-version;</productnumber>
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| 14 | <address>&gcc-url;</address>
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| 15 | </sect1info>
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| 16 |
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[6a82dd9] | 17 | <title>GCC-&gcc-version;</title>
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| 18 |
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| 19 | <indexterm zone="ch-system-gcc">
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| 20 | <primary sortas="a-GCC">GCC</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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[6370fa6] | 25 |
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[6a82dd9] | 26 | <para>The GCC package contains the GNU compiler collection, which includes
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| 27 | the C and C++ compilers.</para>
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[673b0d8] | 28 |
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[6a82dd9] | 29 | <segmentedlist>
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| 30 | <segtitle>&buildtime;</segtitle>
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| 31 | <segtitle>&diskspace;</segtitle>
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[5888299] | 32 |
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[6a82dd9] | 33 | <seglistitem>
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[fb386e0] | 34 | <seg>&gcc-fin-sbu;</seg>
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| 35 | <seg>&gcc-fin-du;</seg>
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[6a82dd9] | 36 | </seglistitem>
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| 37 | </segmentedlist>
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[3554fa3a] | 38 |
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[6a82dd9] | 39 | </sect2>
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| 40 |
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| 41 | <sect2 role="installation">
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| 42 | <title>Installation of GCC</title>
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[12836f5] | 43 |
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[ed3be61] | 44 | <para>If building on x86_64, change the default directory name for 64-bit
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[be3d9f3] | 45 | libraries to <quote>lib</quote>:</para>
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| 46 |
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| 47 | <screen><userinput remap="pre">case $(uname -m) in
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| 48 | x86_64)
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| 49 | sed -e '/m64=/s/lib64/lib/' \
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| 50 | -i.orig gcc/config/i386/t-linux64
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| 51 | ;;
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| 52 | esac</userinput></screen>
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| 53 |
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[f1dd547] | 54 | <para>The GCC documentation recommends building GCC in a dedicated build directory:</para>
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[73aedd1d] | 55 |
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[f1dd547] | 56 | <screen><userinput remap="pre">mkdir -v build
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| 57 | cd build</userinput></screen>
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[73aedd1d] | 58 |
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[6a82dd9] | 59 | <para>Prepare GCC for compilation:</para>
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[73aedd1d] | 60 |
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[efcb393] | 61 | <screen><userinput remap="configure">../configure --prefix=/usr \
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| 62 | LD=ld \
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[f1dd547] | 63 | --enable-languages=c,c++ \
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| 64 | --disable-multilib \
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| 65 | --disable-bootstrap \
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| 66 | --with-system-zlib</userinput></screen>
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[73aedd1d] | 67 |
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[6a156bab] | 68 | <para>Note that for other programming languages there are some prerequisites that
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[93756f6] | 69 | are not yet available. See the
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[6a156bab] | 70 | <ulink url="&blfs-book;general/gcc.html">BLFS Book GCC page</ulink>
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[93756f6] | 71 | for instructions on how to build all of GCC's supported languages.</para>
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[182d5d3] | 72 |
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[ae4d45a] | 73 | <variablelist>
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[a89ab79] | 74 | <title>The meaning of the new configure parameters:</title>
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| 75 |
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| 76 | <varlistentry>
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| 77 | <term><parameter>LD=ld</parameter></term>
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| 78 | <listitem>
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| 79 | <para>This parameter makes the configure script use the ld installed
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[6a156bab] | 80 | by the binutils built earlier in this chapter, rather than
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[a89ab79] | 81 | the cross-built version which would otherwise be used.</para>
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| 82 | </listitem>
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| 83 | </varlistentry>
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[cde2ae7] | 84 |
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[ae4d45a] | 85 | <varlistentry>
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| 86 | <term><parameter>--with-system-zlib</parameter></term>
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| 87 | <listitem>
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| 88 | <para>This switch tells GCC to link to the system installed copy of
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[6a156bab] | 89 | the zlib library, rather than its own internal copy.</para>
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[ae4d45a] | 90 | </listitem>
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| 91 | </varlistentry>
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| 92 | </variablelist>
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| 93 |
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[6a82dd9] | 94 | <para>Compile the package:</para>
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[73aedd1d] | 95 |
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[0445a3d] | 96 | <screen><userinput remap="make">make</userinput></screen>
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[73aedd1d] | 97 |
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[6a82dd9] | 98 | <important>
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| 99 | <para>In this section, the test suite for GCC is considered
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| 100 | critical. Do not skip it under any circumstance.</para>
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| 101 | </important>
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[81fd230] | 102 |
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[6a156bab] | 103 | <para>One set of tests in the GCC test suite is known to exhaust the default
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| 104 | stack, so increase the stack size prior to running the tests:</para>
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[4e48f56e] | 105 |
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[2efa44a] | 106 | <screen><userinput remap="test">ulimit -s 32768</userinput></screen>
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[4e48f56e] | 107 |
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[76db8d6] | 108 | <para>Test the results as a non-privileged user, but do not stop at errors:</para>
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| 109 |
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[ae7f075] | 110 | <screen><userinput remap="test">chown -Rv tester .
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| 111 | su tester -c "PATH=$PATH make -k check"</userinput></screen>
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[73aedd1d] | 112 |
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[9278974d] | 113 | <para>To receive a summary of the test suite results, run:</para>
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| 114 |
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[f1dd547] | 115 | <screen><userinput remap="test">../contrib/test_summary</userinput></screen>
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[9278974d] | 116 |
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| 117 | <para>For only the summaries, pipe the output through
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| 118 | <userinput>grep -A7 Summ</userinput>.</para>
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| 119 |
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| 120 | <para>Results can be compared with those located at <ulink
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[98e7ac4] | 121 | url="&test-results;"/> and
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[b30de8f] | 122 | <ulink url="https://gcc.gnu.org/ml/gcc-testresults/"/>.</para>
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[9278974d] | 123 |
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[7433c5d] | 124 | <para>Six tests related to get_time are known to fail. These are
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[7f016773] | 125 | apparently related to the en_HK locale.</para>
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[7433c5d] | 126 |
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[b9e4312] | 127 | <para>Two tests named lookup.cc and reverse.cc in experimental/net
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| 128 | are known to fail in LFS chroot environment because they require
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| 129 | /etc/hosts and iana-etc.</para>
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| 130 |
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[9278974d] | 131 | <para>A few unexpected failures cannot always be avoided. The GCC developers
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[0238d49] | 132 | are usually aware of these issues, but have not resolved them yet.
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[9278974d] | 133 | Unless the test results are vastly different from those at the above URL,
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| 134 | it is safe to continue.</para>
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[73aedd1d] | 135 |
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[ac95fdb] | 136 | <!--note><para>
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[e3e989a] | 137 | On some combinations of kernel configuration and AMD processors
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| 138 | there may be more than 1100 failures in the gcc.target/i386/mpx
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| 139 | tests (which are designed to test the MPX option on recent
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| 140 | Intel processors). These can safely be ignored on AMD
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[1c8cc71] | 141 | processors. These tests will also fail on Intel processors if MPX support
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| 142 | is not enabled in the kernel even though it is present on the CPU.
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[ac95fdb] | 143 | </para></note-->
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[e3e989a] | 144 |
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[dacb13d] | 145 | <para>Install the package and remove an unneeded directory:</para>
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[73aedd1d] | 146 |
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[3f01429] | 147 | <screen><userinput remap="install">make install
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[d4c8cfe3] | 148 | rm -rf /usr/lib/gcc/$(gcc -dumpmachine)/&gcc-version;/include-fixed/bits/</userinput></screen>
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[73aedd1d] | 149 |
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[e6db175] | 150 | <para>The GCC build directory is owned by <systemitem class="username">
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[ae7f075] | 151 | tester</systemitem> now and the ownership of the installed header
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[bf0ad1a] | 152 | directory (and its content) will be incorrect. Change the ownership to
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[e6db175] | 153 | <systemitem class="username">root</systemitem> user and group:</para>
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| 154 |
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| 155 | <screen><userinput remap="install">chown -v -R root:root \
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| 156 | /usr/lib/gcc/*linux-gnu/&gcc-version;/include{,-fixed}</userinput></screen>
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| 157 |
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[60b23a6f] | 158 | <para>Create a symlink required by the <ulink
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[b30de8f] | 159 | url="https://refspecs.linuxfoundation.org/FHS_3.0/fhs/ch03s09.html">FHS</ulink>
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[60b23a6f] | 160 | for "historical" reasons.</para>
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[73aedd1d] | 161 |
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[0445a3d] | 162 | <screen><userinput remap="install">ln -sv ../usr/bin/cpp /lib</userinput></screen>
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[efcb393] | 163 | <!-- already done earlier
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[6a82dd9] | 164 | <para>Many packages use the name <command>cc</command> to call the C
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| 165 | compiler. To satisfy those packages, create a symlink:</para>
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[1ba726f] | 166 |
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[0445a3d] | 167 | <screen><userinput remap="install">ln -sv gcc /usr/bin/cc</userinput></screen>
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[efcb393] | 168 | -->
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[6206f72] | 169 | <para>Add a compatibility symlink to enable building programs with
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| 170 | Link Time Optimization (LTO):</para>
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| 171 |
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[aa9bb6c] | 172 | <screen><userinput remap="install">install -v -dm755 /usr/lib/bfd-plugins
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[040ecb6] | 173 | ln -sfv ../../libexec/gcc/$(gcc -dumpmachine)/&gcc-version;/liblto_plugin.so \
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| 174 | /usr/lib/bfd-plugins/</userinput></screen>
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[6206f72] | 175 |
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[09f1daf] | 176 | <para>Now that our final toolchain is in place, it is important to again ensure
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| 177 | that compiling and linking will work as expected. We do this by performing
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[6a156bab] | 178 | some sanity checks:</para>
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[09f1daf] | 179 |
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[d9441360] | 180 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 181 | href="adjusting.xml"
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[09f1daf] | 182 | xpointer="xpointer(//*[@os='a'])"/>
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| 183 |
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[d9441360] | 184 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 185 | href="adjusting.xml"
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[09f1daf] | 186 | xpointer="xpointer(//*[@os='b'])"/>
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| 187 |
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[d9441360] | 188 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 189 | href="adjusting.xml"
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[09f1daf] | 190 | xpointer="xpointer(//*[@os='c'])"/>
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| 191 |
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[d9441360] | 192 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 193 | href="adjusting.xml"
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[09f1daf] | 194 | xpointer="xpointer(//*[@os='d'])"/>
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| 195 |
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[d9441360] | 196 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 197 | href="adjusting.xml"
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[09f1daf] | 198 | xpointer="xpointer(//*[@os='e'])"/>
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| 199 |
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[d9441360] | 200 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 201 | href="adjusting.xml"
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[09f1daf] | 202 | xpointer="xpointer(//*[@os='f'])"/>
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| 203 |
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[98e7ac4] | 204 | <screen><computeroutput>/usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crt1.o succeeded
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| 205 | /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crti.o succeeded
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| 206 | /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crtn.o succeeded</computeroutput></screen>
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[09f1daf] | 207 |
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[6a156bab] | 208 | <para>Depending on your machine architecture, the above may differ slightly.
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| 209 | The difference will be the name of the directory
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[be3d9f3] | 210 | after <filename class="directory">/usr/lib/gcc</filename>. The important
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| 211 | thing to look for here is that <command>gcc</command> has found all three
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[5f7456b] | 212 | <filename>crt*.o</filename> files under the
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| 213 | <filename class="directory">/usr/lib</filename> directory.</para>
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[6e88633] | 214 |
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[d9441360] | 215 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 216 | href="adjusting.xml"
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[09f1daf] | 217 | xpointer="xpointer(//*[@os='g'])"/>
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| 218 |
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[041c8f67] | 219 | <screen><userinput>grep -B4 '^ /usr/include' dummy.log</userinput></screen>
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[e9a652b] | 220 |
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[d9441360] | 221 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 222 | href="adjusting.xml"
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[09f1daf] | 223 | xpointer="xpointer(//*[@os='h'])"/>
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| 224 |
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[e9a652b] | 225 | <screen><computeroutput>#include <...> search starts here:
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[98e7ac4] | 226 | /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/include
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[c528e3a] | 227 | /usr/local/include
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[98e7ac4] | 228 | /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/include-fixed
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[e9a652b] | 229 | /usr/include</computeroutput></screen>
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| 230 |
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[6a156bab] | 231 | <para>Again, the directory named after your target triplet may be
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| 232 | different than the above, depending on your system architecture.</para>
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[3f39abf3] | 233 |
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[d9441360] | 234 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 235 | href="adjusting.xml"
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[09f1daf] | 236 | xpointer="xpointer(//*[@os='i'])"/>
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| 237 |
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[d9441360] | 238 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 239 | href="adjusting.xml"
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[09f1daf] | 240 | xpointer="xpointer(//*[@os='j'])"/>
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| 241 |
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[d9441360] | 242 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 243 | href="adjusting.xml"
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[09f1daf] | 244 | xpointer="xpointer(//*[@os='k'])"/>
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| 245 |
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[98e7ac4] | 246 | <screen><computeroutput>SEARCH_DIR("/usr/x86_64-pc-linux-gnu/lib64")
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| 247 | SEARCH_DIR("/usr/local/lib64")
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| 248 | SEARCH_DIR("/lib64")
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| 249 | SEARCH_DIR("/usr/lib64")
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| 250 | SEARCH_DIR("/usr/x86_64-pc-linux-gnu/lib")
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[e9a652b] | 251 | SEARCH_DIR("/usr/local/lib")
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| 252 | SEARCH_DIR("/lib")
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[6e88633] | 253 | SEARCH_DIR("/usr/lib");</computeroutput></screen>
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| 254 |
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[98e7ac4] | 255 | <para>A 32-bit system may see a few different directories. For example, here
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| 256 | is the output from an i686 machine:</para>
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[6e88633] | 257 |
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[98e7ac4] | 258 | <screen><computeroutput>SEARCH_DIR("/usr/i686-pc-linux-gnu/lib32")
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| 259 | SEARCH_DIR("/usr/local/lib32")
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| 260 | SEARCH_DIR("/lib32")
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| 261 | SEARCH_DIR("/usr/lib32")
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| 262 | SEARCH_DIR("/usr/i686-pc-linux-gnu/lib")
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[6e88633] | 263 | SEARCH_DIR("/usr/local/lib")
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| 264 | SEARCH_DIR("/lib")
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[e9a652b] | 265 | SEARCH_DIR("/usr/lib");</computeroutput></screen>
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| 266 |
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[d9441360] | 267 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 268 | href="adjusting.xml"
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[09f1daf] | 269 | xpointer="xpointer(//*[@os='l'])"/>
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| 270 |
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[d9441360] | 271 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 272 | href="adjusting.xml"
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[09f1daf] | 273 | xpointer="xpointer(//*[@os='m'])"/>
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| 274 |
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[d9441360] | 275 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 276 | href="adjusting.xml"
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[09f1daf] | 277 | xpointer="xpointer(//*[@os='n'])"/>
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| 278 |
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[d9441360] | 279 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 280 | href="adjusting.xml"
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[09f1daf] | 281 | xpointer="xpointer(//*[@os='o'])"/>
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| 282 |
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[d9441360] | 283 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 284 | href="adjusting.xml"
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[09f1daf] | 285 | xpointer="xpointer(//*[@os='p'])"/>
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| 286 |
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[d9441360] | 287 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 288 | href="adjusting.xml"
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[09f1daf] | 289 | xpointer="xpointer(//*[@os='q'])"/>
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| 290 |
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[d9441360] | 291 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 292 | href="adjusting.xml"
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[09f1daf] | 293 | xpointer="xpointer(//*[@os='r'])"/>
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| 294 |
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[d9441360] | 295 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 296 | href="adjusting.xml"
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[09f1daf] | 297 | xpointer="xpointer(//*[@os='s'])"/>
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| 298 |
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[d9441360] | 299 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 300 | href="adjusting.xml"
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[09f1daf] | 301 | xpointer="xpointer(//*[@os='t'])"/>
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[6a82dd9] | 302 |
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[d9441360] | 303 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 304 | href="adjusting.xml"
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[e9a652b] | 305 | xpointer="xpointer(//*[@os='u'])"/>
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| 306 |
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[d9441360] | 307 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 308 | href="adjusting.xml"
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[e9a652b] | 309 | xpointer="xpointer(//*[@os='v'])"/>
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| 310 |
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[970a126] | 311 | <para>Finally, move a misplaced file:</para>
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[39ec01c] | 312 |
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[970a126] | 313 | <screen><userinput remap="install">mkdir -pv /usr/share/gdb/auto-load/usr/lib
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| 314 | mv -v /usr/lib/*gdb.py /usr/share/gdb/auto-load/usr/lib</userinput></screen>
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[39ec01c] | 315 |
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[6a82dd9] | 316 | </sect2>
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| 317 |
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| 318 | <sect2 id="contents-gcc" role="content">
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| 319 | <title>Contents of GCC</title>
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| 320 |
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| 321 | <segmentedlist>
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| 322 | <segtitle>Installed programs</segtitle>
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| 323 | <segtitle>Installed libraries</segtitle>
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[fe05b08] | 324 | <segtitle>Installed directories</segtitle>
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[6a82dd9] | 325 |
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| 326 | <seglistitem>
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[2ca8941] | 327 | <seg>c++, cc (link to gcc), cpp, g++, gcc,
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[78cc3be] | 328 | gcc-ar, gcc-nm, gcc-ranlib, gcov, gcov-dump, and gcov-tool</seg>
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[e0901b3] | 329 |
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[78cc3be] | 330 | <seg>libasan.{a,so}, libatomic.{a,so}, libcc1.so, libgcc.a, libgcc_eh.a,
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| 331 | libgcc_s.so, libgcov.a, libgomp.{a,so}, libitm.{a,so},
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| 332 | liblsan.{a,so}, liblto_plugin.so,
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| 333 | libquadmath.{a,so}, libssp.{a,so}, libssp_nonshared.a,
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| 334 | libstdc++.{a,so}, libstdc++fs.a, libsupc++.a, libtsan.{a,so},
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| 335 | and libubsan.{a,so}</seg>
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[2ca8941] | 336 |
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[7bb9fda] | 337 | <seg>/usr/include/c++, /usr/lib/gcc, /usr/libexec/gcc, and
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[4e8a532] | 338 | /usr/share/gcc-&gcc-version;</seg>
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[6a82dd9] | 339 | </seglistitem>
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| 340 | </segmentedlist>
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| 341 |
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| 342 | <variablelist>
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| 343 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 344 | <?dbfo list-presentation="list"?>
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| 345 | <?dbhtml list-presentation="table"?>
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| 346 |
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[75128571] | 347 | <varlistentry id="c">
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| 348 | <term><command>c++</command></term>
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| 349 | <listitem>
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| 350 | <para>The C++ compiler</para>
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| 351 | <indexterm zone="ch-system-gcc c">
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| 352 | <primary sortas="b-c++">c++</primary>
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| 353 | </indexterm>
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| 354 | </listitem>
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| 355 | </varlistentry>
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| 356 |
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[6a82dd9] | 357 | <varlistentry id="cc">
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| 358 | <term><command>cc</command></term>
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| 359 | <listitem>
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| 360 | <para>The C compiler</para>
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| 361 | <indexterm zone="ch-system-gcc cc">
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| 362 | <primary sortas="b-cc">cc</primary>
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| 363 | </indexterm>
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| 364 | </listitem>
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| 365 | </varlistentry>
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| 366 |
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| 367 | <varlistentry id="cpp">
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| 368 | <term><command>cpp</command></term>
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| 369 | <listitem>
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| 370 | <para>The C preprocessor; it is used by the compiler to expand the
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| 371 | #include, #define, and similar statements in the source files</para>
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| 372 | <indexterm zone="ch-system-gcc cpp">
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| 373 | <primary sortas="b-cpp">cpp</primary>
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| 374 | </indexterm>
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| 375 | </listitem>
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| 376 | </varlistentry>
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| 377 |
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| 378 | <varlistentry id="g">
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| 379 | <term><command>g++</command></term>
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| 380 | <listitem>
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| 381 | <para>The C++ compiler</para>
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| 382 | <indexterm zone="ch-system-gcc g">
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| 383 | <primary sortas="b-g++">g++</primary>
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| 384 | </indexterm>
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| 385 | </listitem>
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| 386 | </varlistentry>
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| 387 |
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| 388 | <varlistentry id="gcc">
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| 389 | <term><command>gcc</command></term>
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| 390 | <listitem>
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| 391 | <para>The C compiler</para>
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| 392 | <indexterm zone="ch-system-gcc gcc">
|
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| 393 | <primary sortas="b-gcc">gcc</primary>
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| 394 | </indexterm>
|
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| 395 | </listitem>
|
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| 396 | </varlistentry>
|
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| 397 |
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[e0901b3] | 398 | <varlistentry id="gcc-ar">
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| 399 | <term><command>gcc-ar</command></term>
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| 400 | <listitem>
|
---|
| 401 | <para>A wrapper around <command>ar</command> that adds a
|
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[afba93b] | 402 | plugin to the command line. This program is only used
|
---|
[edbeeb5] | 403 | to add "link time optimization" and is not useful with the
|
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[afba93b] | 404 | default build options</para>
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[e0901b3] | 405 | <indexterm zone="ch-system-gcc gcc-ar">
|
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| 406 | <primary sortas="b-gcc-ar">gc-ar</primary>
|
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| 407 | </indexterm>
|
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| 408 | </listitem>
|
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| 409 | </varlistentry>
|
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| 410 |
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| 411 | <varlistentry id="gcc-nm">
|
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| 412 | <term><command>gcc-nm</command></term>
|
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| 413 | <listitem>
|
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| 414 | <para>A wrapper around <command>nm</command> that adds a
|
---|
[afba93b] | 415 | plugin to the command line. This program is only used
|
---|
[a885478] | 416 | to add "link time optimization" and is not useful with the
|
---|
[afba93b] | 417 | default build options</para>
|
---|
[e0901b3] | 418 | <indexterm zone="ch-system-gcc gcc-nm">
|
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| 419 | <primary sortas="b-gcc-nm">gc-nm</primary>
|
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| 420 | </indexterm>
|
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| 421 | </listitem>
|
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| 422 | </varlistentry>
|
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| 423 |
|
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| 424 | <varlistentry id="gcc-ranlib">
|
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| 425 | <term><command>gcc-ranlib</command></term>
|
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| 426 | <listitem>
|
---|
| 427 | <para>A wrapper around <command>ranlib</command> that adds a
|
---|
[afba93b] | 428 | plugin to the command line. This program is only used
|
---|
[a885478] | 429 | to add "link time optimization" and is not useful with the
|
---|
[afba93b] | 430 | default build options</para>
|
---|
[e0901b3] | 431 | <indexterm zone="ch-system-gcc gcc-ranlib">
|
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| 432 | <primary sortas="b-gcc-ranlib">gc-ranlib</primary>
|
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| 433 | </indexterm>
|
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| 434 | </listitem>
|
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| 435 | </varlistentry>
|
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[6a82dd9] | 436 |
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| 437 | <varlistentry id="gcov">
|
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| 438 | <term><command>gcov</command></term>
|
---|
| 439 | <listitem>
|
---|
| 440 | <para>A coverage testing tool; it is used to analyze programs to
|
---|
| 441 | determine where optimizations will have the most effect</para>
|
---|
| 442 | <indexterm zone="ch-system-gcc gcov">
|
---|
| 443 | <primary sortas="b-gcov">gcov</primary>
|
---|
| 444 | </indexterm>
|
---|
[4783efe] | 445 | </listitem>
|
---|
| 446 | </varlistentry>
|
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| 447 |
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[78cc3be] | 448 | <varlistentry id="gcov-dump">
|
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| 449 | <term><command>gcov-dump</command></term>
|
---|
| 450 | <listitem>
|
---|
| 451 | <para>Offline gcda and gcno profile dump tool</para>
|
---|
| 452 | <indexterm zone="ch-system-gcc gcov-dump">
|
---|
| 453 | <primary sortas="b-gcov-dump">gcov-dump</primary>
|
---|
| 454 | </indexterm>
|
---|
| 455 | </listitem>
|
---|
| 456 | </varlistentry>
|
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| 457 |
|
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| 458 | <varlistentry id="gcov-tool">
|
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| 459 | <term><command>gcov-tool</command></term>
|
---|
| 460 | <listitem>
|
---|
| 461 | <para>Offline gcda profile processing tool</para>
|
---|
| 462 | <indexterm zone="ch-system-gcc gcov-tool">
|
---|
| 463 | <primary sortas="b-gcov-tool">gcov-tool</primary>
|
---|
| 464 | </indexterm>
|
---|
| 465 | </listitem>
|
---|
| 466 | </varlistentry>
|
---|
| 467 |
|
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[4783efe] | 468 | <varlistentry id="libasan">
|
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[78cc3be] | 469 | <term><filename class="libraryfile">libasan</filename></term>
|
---|
[4783efe] | 470 | <listitem>
|
---|
| 471 | <para>The Address Sanitizer runtime library</para>
|
---|
| 472 | <indexterm zone="ch-system-gcc libasan">
|
---|
| 473 | <primary sortas="b-libasan">libasan</primary>
|
---|
| 474 | </indexterm>
|
---|
[6a82dd9] | 475 | </listitem>
|
---|
| 476 | </varlistentry>
|
---|
| 477 |
|
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[78cc3be] | 478 | <varlistentry id="libatomic">
|
---|
| 479 | <term><filename class="libraryfile">libatomic</filename></term>
|
---|
| 480 | <listitem>
|
---|
| 481 | <para>GCC atomic built-in runtime library</para>
|
---|
| 482 | <indexterm zone="ch-system-gcc libatomic">
|
---|
| 483 | <primary sortas="b-libatomic">libatomic</primary>
|
---|
| 484 | </indexterm>
|
---|
| 485 | </listitem>
|
---|
| 486 | </varlistentry>
|
---|
| 487 |
|
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| 488 | <varlistentry id="libcc1">
|
---|
| 489 | <term><filename class="libraryfile">libcc1</filename></term>
|
---|
| 490 | <listitem>
|
---|
| 491 | <para>The C preprocessing library</para>
|
---|
| 492 | <indexterm zone="ch-system-gcc libcc1">
|
---|
| 493 | <primary sortas="b-libcc1">libcc1</primary>
|
---|
| 494 | </indexterm>
|
---|
| 495 | </listitem>
|
---|
| 496 | </varlistentry>
|
---|
| 497 |
|
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[6a82dd9] | 498 | <varlistentry id="libgcc">
|
---|
| 499 | <term><filename class="libraryfile">libgcc</filename></term>
|
---|
| 500 | <listitem>
|
---|
| 501 | <para>Contains run-time support for <command>gcc</command></para>
|
---|
| 502 | <indexterm zone="ch-system-gcc libgcc">
|
---|
[afba93b] | 503 | <primary sortas="c-libgcc">libgcc</primary>
|
---|
[6a82dd9] | 504 | </indexterm>
|
---|
| 505 | </listitem>
|
---|
| 506 | </varlistentry>
|
---|
| 507 |
|
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[90aae6b] | 508 | <varlistentry id="libgcov">
|
---|
| 509 | <term><filename class="libraryfile">libgcov</filename></term>
|
---|
| 510 | <listitem>
|
---|
| 511 | <para>This library is linked in to a program when GCC is instructed
|
---|
| 512 | to enable profiling</para>
|
---|
| 513 | <indexterm zone="ch-system-gcc libgcov">
|
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| 514 | <primary sortas="c-libgcov">libgcov</primary>
|
---|
| 515 | </indexterm>
|
---|
| 516 | </listitem>
|
---|
| 517 | </varlistentry>
|
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| 518 |
|
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| 519 | <varlistentry id="libgomp">
|
---|
| 520 | <term><filename class="libraryfile">libgomp</filename></term>
|
---|
| 521 | <listitem>
|
---|
| 522 | <para>GNU implementation of the OpenMP API for multi-platform
|
---|
| 523 | shared-memory parallel programming in C/C++ and Fortran</para>
|
---|
| 524 | <indexterm zone="ch-system-gcc libgomp">
|
---|
| 525 | <primary sortas="c-libgomp">libgomp</primary>
|
---|
| 526 | </indexterm>
|
---|
| 527 | </listitem>
|
---|
| 528 | </varlistentry>
|
---|
| 529 |
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[78cc3be] | 530 | <varlistentry id="liblsan">
|
---|
| 531 | <term><filename class="libraryfile">liblsan</filename></term>
|
---|
[b755562] | 532 | <listitem>
|
---|
[78cc3be] | 533 | <para>The Leak Sanitizer runtime library</para>
|
---|
| 534 | <indexterm zone="ch-system-gcc liblsan">
|
---|
| 535 | <primary sortas="c-liblsan">liblsan</primary>
|
---|
[b755562] | 536 | </indexterm>
|
---|
| 537 | </listitem>
|
---|
| 538 | </varlistentry>
|
---|
| 539 |
|
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[3119ddc] | 540 | <varlistentry id="liblto_plugin">
|
---|
| 541 | <term><filename class="libraryfile">liblto_plugin</filename></term>
|
---|
| 542 | <listitem>
|
---|
| 543 | <para>GCC's Link Time Optimization (LTO) plugin allows GCC to perform
|
---|
[afba93b] | 544 | optimizations across compilation units</para>
|
---|
[3119ddc] | 545 | <indexterm zone="ch-system-gcc liblto_plugin">
|
---|
[afba93b] | 546 | <primary sortas="c-liblto_plugin">liblto_plugin</primary>
|
---|
[3119ddc] | 547 | </indexterm>
|
---|
| 548 | </listitem>
|
---|
| 549 | </varlistentry>
|
---|
[7bb9fda] | 550 |
|
---|
[3119ddc] | 551 | <varlistentry id="libquadmath">
|
---|
| 552 | <term><filename class="libraryfile">libquadmath</filename></term>
|
---|
| 553 | <listitem>
|
---|
| 554 | <para>GCC Quad Precision Math Library API</para>
|
---|
| 555 | <indexterm zone="ch-system-gcc libquadmath">
|
---|
[afba93b] | 556 | <primary sortas="c-libquadmath">libquadmath</primary>
|
---|
[3119ddc] | 557 | </indexterm>
|
---|
| 558 | </listitem>
|
---|
| 559 | </varlistentry>
|
---|
| 560 |
|
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[2791a8e] | 561 | <varlistentry id="libssp">
|
---|
| 562 | <term><filename class="libraryfile">libssp</filename></term>
|
---|
| 563 | <listitem>
|
---|
| 564 | <para>Contains routines supporting GCC's stack-smashing protection
|
---|
| 565 | functionality</para>
|
---|
| 566 | <indexterm zone="ch-system-gcc libssp">
|
---|
[afba93b] | 567 | <primary sortas="c-libssp">libssp</primary>
|
---|
[2791a8e] | 568 | </indexterm>
|
---|
| 569 | </listitem>
|
---|
| 570 | </varlistentry>
|
---|
| 571 |
|
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[6a82dd9] | 572 | <varlistentry id="libstdc">
|
---|
| 573 | <term><filename class="libraryfile">libstdc++</filename></term>
|
---|
| 574 | <listitem>
|
---|
| 575 | <para>The standard C++ library</para>
|
---|
| 576 | <indexterm zone="ch-system-gcc libstdc">
|
---|
| 577 | <primary sortas="c-libstdc++">libstdc++</primary>
|
---|
| 578 | </indexterm>
|
---|
| 579 | </listitem>
|
---|
| 580 | </varlistentry>
|
---|
| 581 |
|
---|
[78cc3be] | 582 | <varlistentry id="libstdcfs">
|
---|
| 583 | <term><filename class="libraryfile">libstdc++fs</filename></term>
|
---|
| 584 | <listitem>
|
---|
| 585 | <para>ISO/IEC TS 18822:2015 Filesystem library</para>
|
---|
| 586 | <indexterm zone="ch-system-gcc libstdcfs">
|
---|
| 587 | <primary sortas="c-libstdc++fs">libstdc++fs</primary>
|
---|
| 588 | </indexterm>
|
---|
| 589 | </listitem>
|
---|
| 590 | </varlistentry>
|
---|
| 591 |
|
---|
[6a82dd9] | 592 | <varlistentry id="libsupc">
|
---|
| 593 | <term><filename class="libraryfile">libsupc++</filename></term>
|
---|
| 594 | <listitem>
|
---|
| 595 | <para>Provides supporting routines for the C++ programming
|
---|
| 596 | language</para>
|
---|
| 597 | <indexterm zone="ch-system-gcc libsupc">
|
---|
| 598 | <primary sortas="c-libsupc++">libsupc++</primary>
|
---|
| 599 | </indexterm>
|
---|
| 600 | </listitem>
|
---|
| 601 | </varlistentry>
|
---|
| 602 |
|
---|
[f6b1d91] | 603 | <varlistentry id="libtsan">
|
---|
| 604 | <term><filename class="libraryfile">libtsan</filename></term>
|
---|
| 605 | <listitem>
|
---|
| 606 | <para>The Thread Sanitizer runtime library</para>
|
---|
| 607 | <indexterm zone="ch-system-gcc libtsan">
|
---|
| 608 | <primary sortas="c-libtsan">libtsan</primary>
|
---|
| 609 | </indexterm>
|
---|
| 610 | </listitem>
|
---|
| 611 | </varlistentry>
|
---|
| 612 |
|
---|
[78cc3be] | 613 | <varlistentry id="libubsan">
|
---|
| 614 | <term><filename class="libraryfile">libubsan</filename></term>
|
---|
| 615 | <listitem>
|
---|
| 616 | <para>The Undefined Behavior Sanitizer runtime library</para>
|
---|
| 617 | <indexterm zone="ch-system-gcc libubsan">
|
---|
| 618 | <primary sortas="c-libubsan">libubsan</primary>
|
---|
| 619 | </indexterm>
|
---|
| 620 | </listitem>
|
---|
| 621 | </varlistentry>
|
---|
| 622 |
|
---|
[6a82dd9] | 623 | </variablelist>
|
---|
| 624 |
|
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| 625 | </sect2>
|
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[673b0d8] | 626 |
|
---|
| 627 | </sect1>
|
---|