[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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[e4a5635] | 34 | <seg>&gcc-ch6-sbu;</seg>
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| 35 | <seg>&gcc-ch6-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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[0967c90] | 54 | <para>Remove the symlink created earlier as the final gcc includes will be
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| 55 | installed here:</para>
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| 56 |
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| 57 | <screen><userinput remap="pre">rm -f /usr/lib/gcc</userinput></screen>
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| 58 |
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[f1dd547] | 59 | <para>The GCC documentation recommends building GCC in a dedicated build directory:</para>
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[73aedd1d] | 60 |
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[f1dd547] | 61 | <screen><userinput remap="pre">mkdir -v build
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| 62 | cd build</userinput></screen>
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[73aedd1d] | 63 |
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[6a82dd9] | 64 | <para>Prepare GCC for compilation:</para>
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[73aedd1d] | 65 |
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[f1dd547] | 66 | <screen><userinput remap="configure">SED=sed \
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| 67 | ../configure --prefix=/usr \
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| 68 | --enable-languages=c,c++ \
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| 69 | --disable-multilib \
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| 70 | --disable-bootstrap \
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| 71 | --with-system-zlib</userinput></screen>
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[73aedd1d] | 72 |
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[1cdaff9] | 73 | <para>Note that for other languages, there are some prerequisites that
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[93756f6] | 74 | are not yet available. See the
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[0ee07e5] | 75 | <ulink url="&blfs-book;general/gcc.html">BLFS Book</ulink>
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[93756f6] | 76 | for instructions on how to build all of GCC's supported languages.</para>
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[182d5d3] | 77 |
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[ae4d45a] | 78 | <variablelist>
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[0cba512d] | 79 | <title>The meaning of the new configure parameters:</title>
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[cde2ae7] | 80 |
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[ff0f063] | 81 | <varlistentry>
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[cde2ae7] | 82 | <term><envar>SED=sed</envar></term>
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[ff0f063] | 83 | <listitem>
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[cde2ae7] | 84 | <para>Setting this environment variable prevents a hard-coded
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| 85 | path to /tools/bin/sed.</para>
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[ff0f063] | 86 | </listitem>
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| 87 | </varlistentry>
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[cde2ae7] | 88 |
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[ae4d45a] | 89 | <varlistentry>
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| 90 | <term><parameter>--with-system-zlib</parameter></term>
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| 91 | <listitem>
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| 92 | <para>This switch tells GCC to link to the system installed copy of
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[8dac2e2] | 93 | the Zlib library, rather than its own internal copy.</para>
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[ae4d45a] | 94 | </listitem>
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| 95 | </varlistentry>
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| 96 | </variablelist>
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| 97 |
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[6a82dd9] | 98 | <para>Compile the package:</para>
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[73aedd1d] | 99 |
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[0445a3d] | 100 | <screen><userinput remap="make">make</userinput></screen>
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[73aedd1d] | 101 |
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[6a82dd9] | 102 | <important>
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| 103 | <para>In this section, the test suite for GCC is considered
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| 104 | critical. Do not skip it under any circumstance.</para>
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| 105 | </important>
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[81fd230] | 106 |
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[4e48f56e] | 107 | <para>One set of tests in the GCC test suite is known to exhaust the stack,
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| 108 | so increase the stack size prior to running the tests:</para>
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| 109 |
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[2efa44a] | 110 | <screen><userinput remap="test">ulimit -s 32768</userinput></screen>
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[4e48f56e] | 111 |
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[6a82dd9] | 112 | <para>Test the results, but do not stop at errors:</para>
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[73aedd1d] | 113 |
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[0445a3d] | 114 | <screen><userinput remap="test">make -k check</userinput></screen>
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[73aedd1d] | 115 |
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[9278974d] | 116 | <para>To receive a summary of the test suite results, run:</para>
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| 117 |
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[f1dd547] | 118 | <screen><userinput remap="test">../contrib/test_summary</userinput></screen>
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[9278974d] | 119 |
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| 120 | <para>For only the summaries, pipe the output through
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| 121 | <userinput>grep -A7 Summ</userinput>.</para>
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| 122 |
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| 123 | <para>Results can be compared with those located at <ulink
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[98e7ac4] | 124 | url="&test-results;"/> and
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| 125 | <ulink url="http://gcc.gnu.org/ml/gcc-testresults/"/>.</para>
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[9278974d] | 126 |
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| 127 | <para>A few unexpected failures cannot always be avoided. The GCC developers
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[0238d49] | 128 | are usually aware of these issues, but have not resolved them yet.
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[b2f3f15] | 129 | In particular, five tests in the libstdc++ test suite are known to fail
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[30216f9] | 130 | when running as the root user as we do here.
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[9278974d] | 131 | Unless the test results are vastly different from those at the above URL,
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| 132 | it is safe to continue.</para>
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[73aedd1d] | 133 |
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[6a82dd9] | 134 | <para>Install the package:</para>
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[73aedd1d] | 135 |
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[0445a3d] | 136 | <screen><userinput remap="install">make install</userinput></screen>
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[73aedd1d] | 137 |
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[60b23a6f] | 138 | <para>Create a symlink required by the <ulink
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| 139 | url="http://refspecs.linuxfoundation.org/FHS_3.0/fhs/ch03s09.html">FHS</ulink>
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| 140 | for "historical" reasons.</para>
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[73aedd1d] | 141 |
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[0445a3d] | 142 | <screen><userinput remap="install">ln -sv ../usr/bin/cpp /lib</userinput></screen>
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[73aedd1d] | 143 |
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[6a82dd9] | 144 | <para>Many packages use the name <command>cc</command> to call the C
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| 145 | compiler. To satisfy those packages, create a symlink:</para>
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[1ba726f] | 146 |
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[0445a3d] | 147 | <screen><userinput remap="install">ln -sv gcc /usr/bin/cc</userinput></screen>
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[1ba726f] | 148 |
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[6206f72] | 149 | <para>Add a compatibility symlink to enable building programs with
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| 150 | Link Time Optimization (LTO):</para>
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| 151 |
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[aa9bb6c] | 152 | <screen><userinput remap="install">install -v -dm755 /usr/lib/bfd-plugins
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[040ecb6] | 153 | ln -sfv ../../libexec/gcc/$(gcc -dumpmachine)/&gcc-version;/liblto_plugin.so \
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| 154 | /usr/lib/bfd-plugins/</userinput></screen>
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[6206f72] | 155 |
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[09f1daf] | 156 | <para>Now that our final toolchain is in place, it is important to again ensure
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| 157 | that compiling and linking will work as expected. We do this by performing
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| 158 | the same sanity checks as we did earlier in the chapter:</para>
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| 159 |
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[d9441360] | 160 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 161 | href="adjusting.xml"
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[09f1daf] | 162 | xpointer="xpointer(//*[@os='a'])"/>
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| 163 |
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[d9441360] | 164 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 165 | href="adjusting.xml"
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[09f1daf] | 166 | xpointer="xpointer(//*[@os='b'])"/>
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| 167 |
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[d9441360] | 168 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 169 | href="adjusting.xml"
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[09f1daf] | 170 | xpointer="xpointer(//*[@os='c'])"/>
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| 171 |
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[d9441360] | 172 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 173 | href="adjusting.xml"
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[09f1daf] | 174 | xpointer="xpointer(//*[@os='d'])"/>
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| 175 |
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[d9441360] | 176 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 177 | href="adjusting.xml"
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[09f1daf] | 178 | xpointer="xpointer(//*[@os='e'])"/>
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| 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='f'])"/>
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| 183 |
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[98e7ac4] | 184 | <screen><computeroutput>/usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crt1.o succeeded
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| 185 | /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crti.o succeeded
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| 186 | /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crtn.o succeeded</computeroutput></screen>
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[09f1daf] | 187 |
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[6e88633] | 188 | <para>Depending on your machine architecture, the above may differ slightly,
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| 189 | the difference usually being the name of the directory
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[be3d9f3] | 190 | after <filename class="directory">/usr/lib/gcc</filename>. The important
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| 191 | thing to look for here is that <command>gcc</command> has found all three
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[5f7456b] | 192 | <filename>crt*.o</filename> files under the
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| 193 | <filename class="directory">/usr/lib</filename> directory.</para>
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[6e88633] | 194 |
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[d9441360] | 195 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 196 | href="adjusting.xml"
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[09f1daf] | 197 | xpointer="xpointer(//*[@os='g'])"/>
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| 198 |
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[041c8f67] | 199 | <screen><userinput>grep -B4 '^ /usr/include' dummy.log</userinput></screen>
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[e9a652b] | 200 |
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[d9441360] | 201 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 202 | href="adjusting.xml"
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[09f1daf] | 203 | xpointer="xpointer(//*[@os='h'])"/>
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| 204 |
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[e9a652b] | 205 | <screen><computeroutput>#include <...> search starts here:
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[98e7ac4] | 206 | /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/include
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[c528e3a] | 207 | /usr/local/include
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[98e7ac4] | 208 | /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/include-fixed
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[e9a652b] | 209 | /usr/include</computeroutput></screen>
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| 210 |
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[6e88633] | 211 | <para>Again, note that the directory named after your target triplet may be
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| 212 | different than the above, depending on your architecture.</para>
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| 213 |
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[3f39abf3] | 214 | <note><para>As of version 4.3.0, GCC now unconditionally installs the
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| 215 | <filename>limits.h</filename> file into the private
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[041c8f67] | 216 | <filename class="directory">include-fixed</filename> directory, and that
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[3f39abf3] | 217 | directory is required to be in place.</para></note>
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| 218 |
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[d9441360] | 219 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 220 | href="adjusting.xml"
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[09f1daf] | 221 | xpointer="xpointer(//*[@os='i'])"/>
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| 222 |
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[d9441360] | 223 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 224 | href="adjusting.xml"
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[09f1daf] | 225 | xpointer="xpointer(//*[@os='j'])"/>
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| 226 |
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[d9441360] | 227 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 228 | href="adjusting.xml"
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[09f1daf] | 229 | xpointer="xpointer(//*[@os='k'])"/>
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| 230 |
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[98e7ac4] | 231 | <screen><computeroutput>SEARCH_DIR("/usr/x86_64-pc-linux-gnu/lib64")
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| 232 | SEARCH_DIR("/usr/local/lib64")
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| 233 | SEARCH_DIR("/lib64")
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| 234 | SEARCH_DIR("/usr/lib64")
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| 235 | SEARCH_DIR("/usr/x86_64-pc-linux-gnu/lib")
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[e9a652b] | 236 | SEARCH_DIR("/usr/local/lib")
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| 237 | SEARCH_DIR("/lib")
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[6e88633] | 238 | SEARCH_DIR("/usr/lib");</computeroutput></screen>
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| 239 |
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[98e7ac4] | 240 | <para>A 32-bit system may see a few different directories. For example, here
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| 241 | is the output from an i686 machine:</para>
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[6e88633] | 242 |
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[98e7ac4] | 243 | <screen><computeroutput>SEARCH_DIR("/usr/i686-pc-linux-gnu/lib32")
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| 244 | SEARCH_DIR("/usr/local/lib32")
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| 245 | SEARCH_DIR("/lib32")
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| 246 | SEARCH_DIR("/usr/lib32")
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| 247 | SEARCH_DIR("/usr/i686-pc-linux-gnu/lib")
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[6e88633] | 248 | SEARCH_DIR("/usr/local/lib")
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| 249 | SEARCH_DIR("/lib")
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[e9a652b] | 250 | SEARCH_DIR("/usr/lib");</computeroutput></screen>
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| 251 |
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[d9441360] | 252 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 253 | href="adjusting.xml"
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[09f1daf] | 254 | xpointer="xpointer(//*[@os='l'])"/>
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| 255 |
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[d9441360] | 256 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 257 | href="adjusting.xml"
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[09f1daf] | 258 | xpointer="xpointer(//*[@os='m'])"/>
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| 259 |
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[d9441360] | 260 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 261 | href="adjusting.xml"
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[09f1daf] | 262 | xpointer="xpointer(//*[@os='n'])"/>
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| 263 |
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[d9441360] | 264 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 265 | href="adjusting.xml"
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[09f1daf] | 266 | xpointer="xpointer(//*[@os='o'])"/>
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| 267 |
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[d9441360] | 268 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 269 | href="adjusting.xml"
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[09f1daf] | 270 | xpointer="xpointer(//*[@os='p'])"/>
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| 271 |
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[d9441360] | 272 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 273 | href="adjusting.xml"
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[09f1daf] | 274 | xpointer="xpointer(//*[@os='q'])"/>
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| 275 |
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[d9441360] | 276 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 277 | href="adjusting.xml"
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[09f1daf] | 278 | xpointer="xpointer(//*[@os='r'])"/>
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| 279 |
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[d9441360] | 280 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 281 | href="adjusting.xml"
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[09f1daf] | 282 | xpointer="xpointer(//*[@os='s'])"/>
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| 283 |
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[d9441360] | 284 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 285 | href="adjusting.xml"
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[09f1daf] | 286 | xpointer="xpointer(//*[@os='t'])"/>
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[6a82dd9] | 287 |
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[d9441360] | 288 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 289 | href="adjusting.xml"
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[e9a652b] | 290 | xpointer="xpointer(//*[@os='u'])"/>
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| 291 |
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[d9441360] | 292 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 293 | href="adjusting.xml"
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[e9a652b] | 294 | xpointer="xpointer(//*[@os='v'])"/>
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| 295 |
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[970a126] | 296 | <para>Finally, move a misplaced file:</para>
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[39ec01c] | 297 |
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[970a126] | 298 | <screen><userinput remap="install">mkdir -pv /usr/share/gdb/auto-load/usr/lib
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| 299 | mv -v /usr/lib/*gdb.py /usr/share/gdb/auto-load/usr/lib</userinput></screen>
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[39ec01c] | 300 |
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[6a82dd9] | 301 | </sect2>
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| 302 |
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| 303 | <sect2 id="contents-gcc" role="content">
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| 304 | <title>Contents of GCC</title>
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| 305 |
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| 306 | <segmentedlist>
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| 307 | <segtitle>Installed programs</segtitle>
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| 308 | <segtitle>Installed libraries</segtitle>
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[fe05b08] | 309 | <segtitle>Installed directories</segtitle>
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[6a82dd9] | 310 |
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| 311 | <seglistitem>
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[2ca8941] | 312 | <seg>c++, cc (link to gcc), cpp, g++, gcc,
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[b5b97081] | 313 | gcc-ar, gcc-nm, gcc-ranlib, and gcov</seg>
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[e0901b3] | 314 |
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[b5b97081] | 315 | <seg>libasan.{a,so}, libatomic.{a,so}, libgcc.a, libgcc_eh.a,
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[b755562] | 316 | libgcc_s.so, libgcov.a, libgomp.{a,so}, libiberty.a, libitm.{a,so},
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[8a8177f9] | 317 | liblto_plugin.so,
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[3119ddc] | 318 | libquadmath.{a,so}, libssp.{a,so},
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[7bb9fda] | 319 | libssp_nonshared.a, libstdc++.{a,so}, libsupc++.a, and libtsan.{a,so}</seg>
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[2ca8941] | 320 |
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[7bb9fda] | 321 | <seg>/usr/include/c++, /usr/lib/gcc, /usr/libexec/gcc, and
|
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[4e8a532] | 322 | /usr/share/gcc-&gcc-version;</seg>
|
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[6a82dd9] | 323 | </seglistitem>
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| 324 | </segmentedlist>
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| 325 |
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| 326 | <variablelist>
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| 327 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 328 | <?dbfo list-presentation="list"?>
|
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| 329 | <?dbhtml list-presentation="table"?>
|
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| 330 |
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[75128571] | 331 | <varlistentry id="c">
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| 332 | <term><command>c++</command></term>
|
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| 333 | <listitem>
|
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| 334 | <para>The C++ compiler</para>
|
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| 335 | <indexterm zone="ch-system-gcc c">
|
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| 336 | <primary sortas="b-c++">c++</primary>
|
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| 337 | </indexterm>
|
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| 338 | </listitem>
|
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| 339 | </varlistentry>
|
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| 340 |
|
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[6a82dd9] | 341 | <varlistentry id="cc">
|
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| 342 | <term><command>cc</command></term>
|
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| 343 | <listitem>
|
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| 344 | <para>The C compiler</para>
|
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| 345 | <indexterm zone="ch-system-gcc cc">
|
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| 346 | <primary sortas="b-cc">cc</primary>
|
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| 347 | </indexterm>
|
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| 348 | </listitem>
|
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| 349 | </varlistentry>
|
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| 350 |
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| 351 | <varlistentry id="cpp">
|
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| 352 | <term><command>cpp</command></term>
|
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| 353 | <listitem>
|
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| 354 | <para>The C preprocessor; it is used by the compiler to expand the
|
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| 355 | #include, #define, and similar statements in the source files</para>
|
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| 356 | <indexterm zone="ch-system-gcc cpp">
|
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| 357 | <primary sortas="b-cpp">cpp</primary>
|
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| 358 | </indexterm>
|
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| 359 | </listitem>
|
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| 360 | </varlistentry>
|
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| 361 |
|
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| 362 | <varlistentry id="g">
|
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| 363 | <term><command>g++</command></term>
|
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| 364 | <listitem>
|
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| 365 | <para>The C++ compiler</para>
|
---|
| 366 | <indexterm zone="ch-system-gcc g">
|
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| 367 | <primary sortas="b-g++">g++</primary>
|
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| 368 | </indexterm>
|
---|
| 369 | </listitem>
|
---|
| 370 | </varlistentry>
|
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| 371 |
|
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| 372 | <varlistentry id="gcc">
|
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| 373 | <term><command>gcc</command></term>
|
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| 374 | <listitem>
|
---|
| 375 | <para>The C compiler</para>
|
---|
| 376 | <indexterm zone="ch-system-gcc gcc">
|
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| 377 | <primary sortas="b-gcc">gcc</primary>
|
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| 378 | </indexterm>
|
---|
| 379 | </listitem>
|
---|
| 380 | </varlistentry>
|
---|
| 381 |
|
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[e0901b3] | 382 | <varlistentry id="gcc-ar">
|
---|
| 383 | <term><command>gcc-ar</command></term>
|
---|
| 384 | <listitem>
|
---|
| 385 | <para>A wrapper around <command>ar</command> that adds a
|
---|
[afba93b] | 386 | plugin to the command line. This program is only used
|
---|
[edbeeb5] | 387 | to add "link time optimization" and is not useful with the
|
---|
[afba93b] | 388 | default build options</para>
|
---|
[e0901b3] | 389 | <indexterm zone="ch-system-gcc gcc-ar">
|
---|
| 390 | <primary sortas="b-gcc-ar">gc-ar</primary>
|
---|
| 391 | </indexterm>
|
---|
| 392 | </listitem>
|
---|
| 393 | </varlistentry>
|
---|
| 394 |
|
---|
| 395 | <varlistentry id="gcc-nm">
|
---|
| 396 | <term><command>gcc-nm</command></term>
|
---|
| 397 | <listitem>
|
---|
| 398 | <para>A wrapper around <command>nm</command> that adds a
|
---|
[afba93b] | 399 | plugin to the command line. This program is only used
|
---|
[a885478] | 400 | to add "link time optimization" and is not useful with the
|
---|
[afba93b] | 401 | default build options</para>
|
---|
[e0901b3] | 402 | <indexterm zone="ch-system-gcc gcc-nm">
|
---|
| 403 | <primary sortas="b-gcc-nm">gc-nm</primary>
|
---|
| 404 | </indexterm>
|
---|
| 405 | </listitem>
|
---|
| 406 | </varlistentry>
|
---|
| 407 |
|
---|
| 408 | <varlistentry id="gcc-ranlib">
|
---|
| 409 | <term><command>gcc-ranlib</command></term>
|
---|
| 410 | <listitem>
|
---|
| 411 | <para>A wrapper around <command>ranlib</command> that adds a
|
---|
[afba93b] | 412 | plugin to the command line. This program is only used
|
---|
[a885478] | 413 | to add "link time optimization" and is not useful with the
|
---|
[afba93b] | 414 | default build options</para>
|
---|
[e0901b3] | 415 | <indexterm zone="ch-system-gcc gcc-ranlib">
|
---|
| 416 | <primary sortas="b-gcc-ranlib">gc-ranlib</primary>
|
---|
| 417 | </indexterm>
|
---|
| 418 | </listitem>
|
---|
| 419 | </varlistentry>
|
---|
[6a82dd9] | 420 |
|
---|
| 421 | <varlistentry id="gcov">
|
---|
| 422 | <term><command>gcov</command></term>
|
---|
| 423 | <listitem>
|
---|
| 424 | <para>A coverage testing tool; it is used to analyze programs to
|
---|
| 425 | determine where optimizations will have the most effect</para>
|
---|
| 426 | <indexterm zone="ch-system-gcc gcov">
|
---|
| 427 | <primary sortas="b-gcov">gcov</primary>
|
---|
| 428 | </indexterm>
|
---|
[4783efe] | 429 | </listitem>
|
---|
| 430 | </varlistentry>
|
---|
| 431 |
|
---|
| 432 | <varlistentry id="libasan">
|
---|
| 433 | <term><command>libasan</command></term>
|
---|
| 434 | <listitem>
|
---|
| 435 | <para>The Address Sanitizer runtime library</para>
|
---|
| 436 | <indexterm zone="ch-system-gcc libasan">
|
---|
| 437 | <primary sortas="b-libasan">libasan</primary>
|
---|
| 438 | </indexterm>
|
---|
[6a82dd9] | 439 | </listitem>
|
---|
| 440 | </varlistentry>
|
---|
| 441 |
|
---|
| 442 | <varlistentry id="libgcc">
|
---|
| 443 | <term><filename class="libraryfile">libgcc</filename></term>
|
---|
| 444 | <listitem>
|
---|
| 445 | <para>Contains run-time support for <command>gcc</command></para>
|
---|
| 446 | <indexterm zone="ch-system-gcc libgcc">
|
---|
[afba93b] | 447 | <primary sortas="c-libgcc">libgcc</primary>
|
---|
[6a82dd9] | 448 | </indexterm>
|
---|
| 449 | </listitem>
|
---|
| 450 | </varlistentry>
|
---|
| 451 |
|
---|
[90aae6b] | 452 | <varlistentry id="libgcov">
|
---|
| 453 | <term><filename class="libraryfile">libgcov</filename></term>
|
---|
| 454 | <listitem>
|
---|
| 455 | <para>This library is linked in to a program when GCC is instructed
|
---|
| 456 | to enable profiling</para>
|
---|
| 457 | <indexterm zone="ch-system-gcc libgcov">
|
---|
| 458 | <primary sortas="c-libgcov">libgcov</primary>
|
---|
| 459 | </indexterm>
|
---|
| 460 | </listitem>
|
---|
| 461 | </varlistentry>
|
---|
| 462 |
|
---|
| 463 | <varlistentry id="libgomp">
|
---|
| 464 | <term><filename class="libraryfile">libgomp</filename></term>
|
---|
| 465 | <listitem>
|
---|
| 466 | <para>GNU implementation of the OpenMP API for multi-platform
|
---|
| 467 | shared-memory parallel programming in C/C++ and Fortran</para>
|
---|
| 468 | <indexterm zone="ch-system-gcc libgomp">
|
---|
| 469 | <primary sortas="c-libgomp">libgomp</primary>
|
---|
| 470 | </indexterm>
|
---|
| 471 | </listitem>
|
---|
| 472 | </varlistentry>
|
---|
| 473 |
|
---|
[b755562] | 474 | <varlistentry id="libiberty">
|
---|
| 475 | <term><filename class="libraryfile">libiberty</filename></term>
|
---|
| 476 | <listitem>
|
---|
| 477 | <para>Contains routines used by various GNU programs, including
|
---|
| 478 | <command>getopt</command>, <command>obstack</command>,
|
---|
| 479 | <command>strerror</command>, <command>strtol</command>, and
|
---|
| 480 | <command>strtoul</command></para>
|
---|
| 481 | <indexterm zone="ch-system-gcc libiberty">
|
---|
| 482 | <primary sortas="c-libiberty">libiberty</primary>
|
---|
| 483 | </indexterm>
|
---|
| 484 | </listitem>
|
---|
| 485 | </varlistentry>
|
---|
| 486 |
|
---|
[3119ddc] | 487 | <varlistentry id="liblto_plugin">
|
---|
| 488 | <term><filename class="libraryfile">liblto_plugin</filename></term>
|
---|
| 489 | <listitem>
|
---|
| 490 | <para>GCC's Link Time Optimization (LTO) plugin allows GCC to perform
|
---|
[afba93b] | 491 | optimizations across compilation units</para>
|
---|
[3119ddc] | 492 | <indexterm zone="ch-system-gcc liblto_plugin">
|
---|
[afba93b] | 493 | <primary sortas="c-liblto_plugin">liblto_plugin</primary>
|
---|
[3119ddc] | 494 | </indexterm>
|
---|
| 495 | </listitem>
|
---|
| 496 | </varlistentry>
|
---|
[7bb9fda] | 497 |
|
---|
[3119ddc] | 498 | <varlistentry id="libquadmath">
|
---|
| 499 | <term><filename class="libraryfile">libquadmath</filename></term>
|
---|
| 500 | <listitem>
|
---|
| 501 | <para>GCC Quad Precision Math Library API</para>
|
---|
| 502 | <indexterm zone="ch-system-gcc libquadmath">
|
---|
[afba93b] | 503 | <primary sortas="c-libquadmath">libquadmath</primary>
|
---|
[3119ddc] | 504 | </indexterm>
|
---|
| 505 | </listitem>
|
---|
| 506 | </varlistentry>
|
---|
| 507 |
|
---|
[2791a8e] | 508 | <varlistentry id="libssp">
|
---|
| 509 | <term><filename class="libraryfile">libssp</filename></term>
|
---|
| 510 | <listitem>
|
---|
| 511 | <para>Contains routines supporting GCC's stack-smashing protection
|
---|
| 512 | functionality</para>
|
---|
| 513 | <indexterm zone="ch-system-gcc libssp">
|
---|
[afba93b] | 514 | <primary sortas="c-libssp">libssp</primary>
|
---|
[2791a8e] | 515 | </indexterm>
|
---|
| 516 | </listitem>
|
---|
| 517 | </varlistentry>
|
---|
| 518 |
|
---|
[6a82dd9] | 519 | <varlistentry id="libstdc">
|
---|
| 520 | <term><filename class="libraryfile">libstdc++</filename></term>
|
---|
| 521 | <listitem>
|
---|
| 522 | <para>The standard C++ library</para>
|
---|
| 523 | <indexterm zone="ch-system-gcc libstdc">
|
---|
| 524 | <primary sortas="c-libstdc++">libstdc++</primary>
|
---|
| 525 | </indexterm>
|
---|
| 526 | </listitem>
|
---|
| 527 | </varlistentry>
|
---|
| 528 |
|
---|
| 529 | <varlistentry id="libsupc">
|
---|
| 530 | <term><filename class="libraryfile">libsupc++</filename></term>
|
---|
| 531 | <listitem>
|
---|
| 532 | <para>Provides supporting routines for the C++ programming
|
---|
| 533 | language</para>
|
---|
| 534 | <indexterm zone="ch-system-gcc libsupc">
|
---|
| 535 | <primary sortas="c-libsupc++">libsupc++</primary>
|
---|
| 536 | </indexterm>
|
---|
| 537 | </listitem>
|
---|
| 538 | </varlistentry>
|
---|
| 539 |
|
---|
[f6b1d91] | 540 | <varlistentry id="libtsan">
|
---|
| 541 | <term><filename class="libraryfile">libtsan</filename></term>
|
---|
| 542 | <listitem>
|
---|
| 543 | <para>The Thread Sanitizer runtime library</para>
|
---|
| 544 | <indexterm zone="ch-system-gcc libtsan">
|
---|
| 545 | <primary sortas="c-libtsan">libtsan</primary>
|
---|
| 546 | </indexterm>
|
---|
| 547 | </listitem>
|
---|
| 548 | </varlistentry>
|
---|
| 549 |
|
---|
[6a82dd9] | 550 | </variablelist>
|
---|
| 551 |
|
---|
| 552 | </sect2>
|
---|
[673b0d8] | 553 |
|
---|
| 554 | </sect1>
|
---|