[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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[6dfcfecc] | 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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[a04b3d39] | 44 | <para>At first, fix an issue breaking
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| 45 | <filename class="libraryfile">libasan.a</filename> building this package
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| 46 | with Glibc-2.34:</para>
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| 47 |
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| 48 | <screen><userinput remap="pre">sed -e '/static.*SIGSTKSZ/d' \
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| 49 | -e 's/return kAltStackSize/return SIGSTKSZ * 4/' \
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| 50 | -i libsanitizer/sanitizer_common/sanitizer_posix_libcdep.cpp</userinput></screen>
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| 51 |
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[ed3be61] | 52 | <para>If building on x86_64, change the default directory name for 64-bit
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[6dfcfecc] | 53 | libraries to <quote>lib</quote>:</para>
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[be3d9f3] | 54 |
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[b3f1ebb3] | 55 | <screen arch="default"><userinput remap="pre">case $(uname -m) in
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[be3d9f3] | 56 | x86_64)
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| 57 | sed -e '/m64=/s/lib64/lib/' \
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| 58 | -i.orig gcc/config/i386/t-linux64
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| 59 | ;;
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| 60 | esac</userinput></screen>
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| 61 |
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[fd48baa] | 62 | <para arch="ml_32,ml_x32,ml_all">Change the default directory name for 64-bit
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[b3f1ebb3] | 63 | libraries to <quote>lib</quote>:</para>
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| 64 |
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[6dfcfecc] | 65 | <screen arch="ml_32,ml_x32,ml_all"><userinput remap="pre">sed -e '/m64=/s/lib64/lib/' \
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[0ebda11] | 66 | -e '/m32=/s/m32=.*/m32=..\/lib32$(call if_multiarch,:i386-linux-gnu)/' \
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[9c0c3a0] | 67 | -i.orig gcc/config/i386/t-linux64</userinput></screen>
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[b3f1ebb3] | 68 |
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[f1dd547] | 69 | <para>The GCC documentation recommends building GCC in a dedicated build directory:</para>
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[73aedd1d] | 70 |
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[f1dd547] | 71 | <screen><userinput remap="pre">mkdir -v build
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| 72 | cd build</userinput></screen>
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[73aedd1d] | 73 |
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[6a82dd9] | 74 | <para>Prepare GCC for compilation:</para>
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[73aedd1d] | 75 |
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[6dfcfecc] | 76 | <screen arch="default"><userinput remap="configure">../configure --prefix=/usr \
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| 77 | LD=ld \
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[f1dd547] | 78 | --enable-languages=c,c++ \
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[6dfcfecc] | 79 | --disable-multilib \
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[f1dd547] | 80 | --disable-bootstrap \
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[6dfcfecc] | 81 | --with-system-zlib</userinput></screen>
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| 82 | <screen arch="ml_32,ml_x32,ml_all"><userinput remap="configure"
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| 83 | arch="ml_32" >mlist=m64,m32</userinput><userinput remap="configure"
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| 84 | arch="ml_x32">mlist=m64,mx32</userinput><userinput remap="configure"
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| 85 | arch="ml_all">mlist=m64,m32,mx32</userinput>
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| 86 | <userinput remap="configure">../configure --prefix=/usr \
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| 87 | LD=ld \
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| 88 | --enable-languages=c,c++ \
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| 89 | --enable-multilib \
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| 90 | --with-multilib-list=$mlist \
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| 91 | --disable-bootstrap \
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| 92 | --with-system-zlib</userinput></screen>
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| 93 |
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| 94 | <para>Note that for other programming languages there are some prerequisites that
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[93756f6] | 95 | are not yet available. See the
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[6dfcfecc] | 96 | <ulink url="&blfs-book;general/gcc.html">BLFS Book GCC page</ulink>
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[93756f6] | 97 | for instructions on how to build all of GCC's supported languages.</para>
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[182d5d3] | 98 |
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[ae4d45a] | 99 | <variablelist>
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[0cba512d] | 100 | <title>The meaning of the new configure parameters:</title>
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[cde2ae7] | 101 |
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[ff0f063] | 102 | <varlistentry>
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[6dfcfecc] | 103 | <term><parameter>LD=ld</parameter></term>
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[ff0f063] | 104 | <listitem>
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[6dfcfecc] | 105 | <para>This parameter makes the configure script use the ld installed
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| 106 | by the binutils built earlier in this chapter, rather than
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| 107 | the cross-built version which would otherwise be used.</para>
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[ff0f063] | 108 | </listitem>
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| 109 | </varlistentry>
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[6dfcfecc] | 110 |
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[ae4d45a] | 111 | <varlistentry>
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| 112 | <term><parameter>--with-system-zlib</parameter></term>
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| 113 | <listitem>
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| 114 | <para>This switch tells GCC to link to the system installed copy of
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[6dfcfecc] | 115 | the zlib library, rather than its own internal copy.</para>
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[ae4d45a] | 116 | </listitem>
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| 117 | </varlistentry>
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| 118 | </variablelist>
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| 119 |
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[6a82dd9] | 120 | <para>Compile the package:</para>
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[73aedd1d] | 121 |
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[0445a3d] | 122 | <screen><userinput remap="make">make</userinput></screen>
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[73aedd1d] | 123 |
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[6a82dd9] | 124 | <important>
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| 125 | <para>In this section, the test suite for GCC is considered
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| 126 | critical. Do not skip it under any circumstance.</para>
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| 127 | </important>
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[81fd230] | 128 |
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[6dfcfecc] | 129 | <para>One set of tests in the GCC test suite is known to exhaust the default
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| 130 | stack, so increase the stack size prior to running the tests:</para>
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[4e48f56e] | 131 |
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[2efa44a] | 132 | <screen><userinput remap="test">ulimit -s 32768</userinput></screen>
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[4e48f56e] | 133 |
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[76db8d6] | 134 | <para>Test the results as a non-privileged user, but do not stop at errors:</para>
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| 135 |
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[8d4f212] | 136 | <screen><userinput remap="test">chown -Rv tester .
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| 137 | su tester -c "PATH=$PATH make -k check"</userinput></screen>
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[73aedd1d] | 138 |
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[9278974d] | 139 | <para>To receive a summary of the test suite results, run:</para>
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| 140 |
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[f1dd547] | 141 | <screen><userinput remap="test">../contrib/test_summary</userinput></screen>
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[9278974d] | 142 |
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| 143 | <para>For only the summaries, pipe the output through
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| 144 | <userinput>grep -A7 Summ</userinput>.</para>
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| 145 |
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| 146 | <para>Results can be compared with those located at <ulink
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[98e7ac4] | 147 | url="&test-results;"/> and
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[b30de8f] | 148 | <ulink url="https://gcc.gnu.org/ml/gcc-testresults/"/>.</para>
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[9278974d] | 149 |
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[2cc15c3] | 150 | <!-- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101081 -->
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| 151 | <para>Eight tests related to analyzer are known to fail.</para>
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| 152 |
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| 153 | <!-- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101751 -->
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| 154 | <para>One test named <filename>asan_test.C</filename> is known to
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| 155 | fail.</para>
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| 156 |
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| 157 | <!-- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100117 -->
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| 158 | <para>In libstdc++, one test named <filename>49745.cc</filename> is
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| 159 | known to fail because the header dependencies in glibc have have
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| 160 | changed.</para>
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[c2d2342] | 161 |
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[cefe505] | 162 | <para>In libstdc++, one numpunct test and six tests related to get_time are
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| 163 | known to fail. These are all because the locale definitions in glibc have
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[e3d0e26] | 164 | changed but libstdc++ does not currently support those changes.</para>
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[d7a9421] | 165 |
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[9278974d] | 166 | <para>A few unexpected failures cannot always be avoided. The GCC developers
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[0238d49] | 167 | are usually aware of these issues, but have not resolved them yet.
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[9278974d] | 168 | Unless the test results are vastly different from those at the above URL,
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| 169 | it is safe to continue.</para>
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[73aedd1d] | 170 |
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[1803e9b] | 171 | <!--note><para>
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[e3e989a] | 172 | On some combinations of kernel configuration and AMD processors
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| 173 | there may be more than 1100 failures in the gcc.target/i386/mpx
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| 174 | tests (which are designed to test the MPX option on recent
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| 175 | Intel processors). These can safely be ignored on AMD
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[1c8cc71] | 176 | processors. These tests will also fail on Intel processors if MPX support
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| 177 | is not enabled in the kernel even though it is present on the CPU.
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[1803e9b] | 178 | </para></note-->
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[e3e989a] | 179 |
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[3d086532] | 180 | <!-- PR 91085, will be fixed in GCC 12. -->
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[bc375da6] | 181 | <para>Install the package and remove an unneeded directory:</para>
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[73aedd1d] | 182 |
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[bc375da6] | 183 | <screen><userinput remap="install">make install
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[1daca67] | 184 | rm -rf /usr/lib/gcc/$(gcc -dumpmachine)/&gcc-version;/include-fixed/bits/</userinput></screen>
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| 185 |
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| 186 | <para>The GCC build directory is owned by <systemitem class="username">
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[8d4f212] | 187 | tester</systemitem> now and the ownership of the installed header
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[1daca67] | 188 | directory (and its content) will be incorrect. Change the ownership to
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| 189 | <systemitem class="username">root</systemitem> user and group:</para>
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| 190 |
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| 191 | <screen><userinput remap="install">chown -v -R root:root \
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[6dfcfecc] | 192 | /usr/lib/gcc/*linux-gnu/&gcc-version;/include{,-fixed}</userinput></screen>
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[73aedd1d] | 193 |
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[60b23a6f] | 194 | <para>Create a symlink required by the <ulink
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[b30de8f] | 195 | url="https://refspecs.linuxfoundation.org/FHS_3.0/fhs/ch03s09.html">FHS</ulink>
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[60b23a6f] | 196 | for "historical" reasons.</para>
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[73aedd1d] | 197 |
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[9c3ce2a] | 198 | <screen><userinput remap="install">ln -svr /usr/bin/cpp /usr/lib</userinput></screen>
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[6dfcfecc] | 199 | <!-- already done earlier
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[6a82dd9] | 200 | <para>Many packages use the name <command>cc</command> to call the C
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| 201 | compiler. To satisfy those packages, create a symlink:</para>
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[1ba726f] | 202 |
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[0445a3d] | 203 | <screen><userinput remap="install">ln -sv gcc /usr/bin/cc</userinput></screen>
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[6dfcfecc] | 204 | -->
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[6206f72] | 205 | <para>Add a compatibility symlink to enable building programs with
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| 206 | Link Time Optimization (LTO):</para>
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| 207 |
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[9da9d014] | 208 | <screen><userinput remap="install">ln -sfv ../../libexec/gcc/$(gcc -dumpmachine)/&gcc-version;/liblto_plugin.so \
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[040ecb6] | 209 | /usr/lib/bfd-plugins/</userinput></screen>
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[6206f72] | 210 |
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[09f1daf] | 211 | <para>Now that our final toolchain is in place, it is important to again ensure
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| 212 | that compiling and linking will work as expected. We do this by performing
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[6dfcfecc] | 213 | some sanity checks:</para>
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[09f1daf] | 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='a'])"/>
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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='b'])"/>
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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='c'])"/>
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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='d'])"/>
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| 230 |
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[d9441360] | 231 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 232 | href="adjusting.xml"
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[09f1daf] | 233 | xpointer="xpointer(//*[@os='e'])"/>
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| 234 |
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[d9441360] | 235 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 236 | href="adjusting.xml"
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[09f1daf] | 237 | xpointer="xpointer(//*[@os='f'])"/>
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| 238 |
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[98e7ac4] | 239 | <screen><computeroutput>/usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crt1.o succeeded
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| 240 | /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crti.o succeeded
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| 241 | /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/../../../../lib/crtn.o succeeded</computeroutput></screen>
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[09f1daf] | 242 |
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[6dfcfecc] | 243 | <para>Depending on your machine architecture, the above may differ slightly.
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| 244 | The difference will be the name of the directory
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[be3d9f3] | 245 | after <filename class="directory">/usr/lib/gcc</filename>. The important
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| 246 | thing to look for here is that <command>gcc</command> has found all three
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[5f7456b] | 247 | <filename>crt*.o</filename> files under the
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| 248 | <filename class="directory">/usr/lib</filename> directory.</para>
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[6e88633] | 249 |
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[d9441360] | 250 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 251 | href="adjusting.xml"
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[09f1daf] | 252 | xpointer="xpointer(//*[@os='g'])"/>
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| 253 |
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[041c8f67] | 254 | <screen><userinput>grep -B4 '^ /usr/include' dummy.log</userinput></screen>
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[e9a652b] | 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='h'])"/>
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| 259 |
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[e9a652b] | 260 | <screen><computeroutput>#include <...> search starts here:
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[98e7ac4] | 261 | /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/include
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[c528e3a] | 262 | /usr/local/include
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[98e7ac4] | 263 | /usr/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/include-fixed
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[e9a652b] | 264 | /usr/include</computeroutput></screen>
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| 265 |
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[6dfcfecc] | 266 | <para>Again, the directory named after your target triplet may be
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| 267 | different than the above, depending on your system architecture.</para>
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[3f39abf3] | 268 |
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[d9441360] | 269 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 270 | href="adjusting.xml"
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[09f1daf] | 271 | xpointer="xpointer(//*[@os='i'])"/>
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| 272 |
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[d9441360] | 273 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 274 | href="adjusting.xml"
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[09f1daf] | 275 | xpointer="xpointer(//*[@os='j'])"/>
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| 276 |
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[d9441360] | 277 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 278 | href="adjusting.xml"
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[09f1daf] | 279 | xpointer="xpointer(//*[@os='k'])"/>
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| 280 |
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[98e7ac4] | 281 | <screen><computeroutput>SEARCH_DIR("/usr/x86_64-pc-linux-gnu/lib64")
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| 282 | SEARCH_DIR("/usr/local/lib64")
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| 283 | SEARCH_DIR("/lib64")
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| 284 | SEARCH_DIR("/usr/lib64")
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| 285 | SEARCH_DIR("/usr/x86_64-pc-linux-gnu/lib")
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[e9a652b] | 286 | SEARCH_DIR("/usr/local/lib")
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| 287 | SEARCH_DIR("/lib")
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[6e88633] | 288 | SEARCH_DIR("/usr/lib");</computeroutput></screen>
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| 289 |
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[6dfcfecc] | 290 | <para arch="default">A 32-bit system may see a few different directories. For example, here
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| 291 | is the output from an i686 machine:</para>
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[6e88633] | 292 |
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[6dfcfecc] | 293 | <!-- not using entities here as the dir names has nothing to do with multilib -->
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[b3f1ebb3] | 294 | <screen arch="default"><computeroutput>SEARCH_DIR("/usr/i686-pc-linux-gnu/lib32")
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[98e7ac4] | 295 | SEARCH_DIR("/usr/local/lib32")
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| 296 | SEARCH_DIR("/lib32")
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| 297 | SEARCH_DIR("/usr/lib32")
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| 298 | SEARCH_DIR("/usr/i686-pc-linux-gnu/lib")
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[6e88633] | 299 | SEARCH_DIR("/usr/local/lib")
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| 300 | SEARCH_DIR("/lib")
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[e9a652b] | 301 | SEARCH_DIR("/usr/lib");</computeroutput></screen>
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| 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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[09f1daf] | 305 | xpointer="xpointer(//*[@os='l'])"/>
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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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[09f1daf] | 309 | xpointer="xpointer(//*[@os='m'])"/>
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| 310 |
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[d9441360] | 311 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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[1a3e6a3] | 312 | href="adjusting.xml"
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[09f1daf] | 313 | xpointer="xpointer(//*[@os='n'])"/>
|
---|
| 314 |
|
---|
[d9441360] | 315 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
---|
[1a3e6a3] | 316 | href="adjusting.xml"
|
---|
[09f1daf] | 317 | xpointer="xpointer(//*[@os='o'])"/>
|
---|
| 318 |
|
---|
[d9441360] | 319 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
---|
[1a3e6a3] | 320 | href="adjusting.xml"
|
---|
[09f1daf] | 321 | xpointer="xpointer(//*[@os='p'])"/>
|
---|
| 322 |
|
---|
[d9441360] | 323 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
---|
[1a3e6a3] | 324 | href="adjusting.xml"
|
---|
[09f1daf] | 325 | xpointer="xpointer(//*[@os='q'])"/>
|
---|
| 326 |
|
---|
[d9441360] | 327 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
---|
[1a3e6a3] | 328 | href="adjusting.xml"
|
---|
[09f1daf] | 329 | xpointer="xpointer(//*[@os='r'])"/>
|
---|
| 330 |
|
---|
[d9441360] | 331 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
---|
[1a3e6a3] | 332 | href="adjusting.xml"
|
---|
[09f1daf] | 333 | xpointer="xpointer(//*[@os='s'])"/>
|
---|
| 334 |
|
---|
[d9441360] | 335 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
---|
[1a3e6a3] | 336 | href="adjusting.xml"
|
---|
[09f1daf] | 337 | xpointer="xpointer(//*[@os='t'])"/>
|
---|
[6a82dd9] | 338 |
|
---|
[d9441360] | 339 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
---|
[1a3e6a3] | 340 | href="adjusting.xml"
|
---|
[e9a652b] | 341 | xpointer="xpointer(//*[@os='u'])"/>
|
---|
| 342 |
|
---|
[d9441360] | 343 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
|
---|
[1a3e6a3] | 344 | href="adjusting.xml"
|
---|
[e9a652b] | 345 | xpointer="xpointer(//*[@os='v'])"/>
|
---|
| 346 |
|
---|
[970a126] | 347 | <para>Finally, move a misplaced file:</para>
|
---|
[39ec01c] | 348 |
|
---|
[970a126] | 349 | <screen><userinput remap="install">mkdir -pv /usr/share/gdb/auto-load/usr/lib
|
---|
[6dfcfecc] | 350 | mv -v /usr/lib/*gdb.py /usr/share/gdb/auto-load/usr/lib</userinput></screen>
|
---|
[39ec01c] | 351 |
|
---|
[6a82dd9] | 352 | </sect2>
|
---|
| 353 |
|
---|
| 354 | <sect2 id="contents-gcc" role="content">
|
---|
| 355 | <title>Contents of GCC</title>
|
---|
| 356 |
|
---|
| 357 | <segmentedlist>
|
---|
| 358 | <segtitle>Installed programs</segtitle>
|
---|
| 359 | <segtitle>Installed libraries</segtitle>
|
---|
[fe05b08] | 360 | <segtitle>Installed directories</segtitle>
|
---|
[6a82dd9] | 361 |
|
---|
| 362 | <seglistitem>
|
---|
[2ca8941] | 363 | <seg>c++, cc (link to gcc), cpp, g++, gcc,
|
---|
[78cc3be] | 364 | gcc-ar, gcc-nm, gcc-ranlib, gcov, gcov-dump, and gcov-tool</seg>
|
---|
[e0901b3] | 365 |
|
---|
[78cc3be] | 366 | <seg>libasan.{a,so}, libatomic.{a,so}, libcc1.so, libgcc.a, libgcc_eh.a,
|
---|
| 367 | libgcc_s.so, libgcov.a, libgomp.{a,so}, libitm.{a,so},
|
---|
| 368 | liblsan.{a,so}, liblto_plugin.so,
|
---|
| 369 | libquadmath.{a,so}, libssp.{a,so}, libssp_nonshared.a,
|
---|
| 370 | libstdc++.{a,so}, libstdc++fs.a, libsupc++.a, libtsan.{a,so},
|
---|
| 371 | and libubsan.{a,so}</seg>
|
---|
[2ca8941] | 372 |
|
---|
[7bb9fda] | 373 | <seg>/usr/include/c++, /usr/lib/gcc, /usr/libexec/gcc, and
|
---|
[4e8a532] | 374 | /usr/share/gcc-&gcc-version;</seg>
|
---|
[6a82dd9] | 375 | </seglistitem>
|
---|
| 376 | </segmentedlist>
|
---|
| 377 |
|
---|
| 378 | <variablelist>
|
---|
| 379 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
|
---|
| 380 | <?dbfo list-presentation="list"?>
|
---|
| 381 | <?dbhtml list-presentation="table"?>
|
---|
| 382 |
|
---|
[75128571] | 383 | <varlistentry id="c">
|
---|
| 384 | <term><command>c++</command></term>
|
---|
| 385 | <listitem>
|
---|
| 386 | <para>The C++ compiler</para>
|
---|
| 387 | <indexterm zone="ch-system-gcc c">
|
---|
| 388 | <primary sortas="b-c++">c++</primary>
|
---|
| 389 | </indexterm>
|
---|
| 390 | </listitem>
|
---|
| 391 | </varlistentry>
|
---|
| 392 |
|
---|
[6a82dd9] | 393 | <varlistentry id="cc">
|
---|
| 394 | <term><command>cc</command></term>
|
---|
| 395 | <listitem>
|
---|
| 396 | <para>The C compiler</para>
|
---|
| 397 | <indexterm zone="ch-system-gcc cc">
|
---|
| 398 | <primary sortas="b-cc">cc</primary>
|
---|
| 399 | </indexterm>
|
---|
| 400 | </listitem>
|
---|
| 401 | </varlistentry>
|
---|
| 402 |
|
---|
| 403 | <varlistentry id="cpp">
|
---|
| 404 | <term><command>cpp</command></term>
|
---|
| 405 | <listitem>
|
---|
| 406 | <para>The C preprocessor; it is used by the compiler to expand the
|
---|
| 407 | #include, #define, and similar statements in the source files</para>
|
---|
| 408 | <indexterm zone="ch-system-gcc cpp">
|
---|
| 409 | <primary sortas="b-cpp">cpp</primary>
|
---|
| 410 | </indexterm>
|
---|
| 411 | </listitem>
|
---|
| 412 | </varlistentry>
|
---|
| 413 |
|
---|
| 414 | <varlistentry id="g">
|
---|
| 415 | <term><command>g++</command></term>
|
---|
| 416 | <listitem>
|
---|
| 417 | <para>The C++ compiler</para>
|
---|
| 418 | <indexterm zone="ch-system-gcc g">
|
---|
| 419 | <primary sortas="b-g++">g++</primary>
|
---|
| 420 | </indexterm>
|
---|
| 421 | </listitem>
|
---|
| 422 | </varlistentry>
|
---|
| 423 |
|
---|
| 424 | <varlistentry id="gcc">
|
---|
| 425 | <term><command>gcc</command></term>
|
---|
| 426 | <listitem>
|
---|
| 427 | <para>The C compiler</para>
|
---|
| 428 | <indexterm zone="ch-system-gcc gcc">
|
---|
| 429 | <primary sortas="b-gcc">gcc</primary>
|
---|
| 430 | </indexterm>
|
---|
| 431 | </listitem>
|
---|
| 432 | </varlistentry>
|
---|
| 433 |
|
---|
[e0901b3] | 434 | <varlistentry id="gcc-ar">
|
---|
| 435 | <term><command>gcc-ar</command></term>
|
---|
| 436 | <listitem>
|
---|
| 437 | <para>A wrapper around <command>ar</command> that adds a
|
---|
[afba93b] | 438 | plugin to the command line. This program is only used
|
---|
[edbeeb5] | 439 | to add "link time optimization" and is not useful with the
|
---|
[afba93b] | 440 | default build options</para>
|
---|
[e0901b3] | 441 | <indexterm zone="ch-system-gcc gcc-ar">
|
---|
| 442 | <primary sortas="b-gcc-ar">gc-ar</primary>
|
---|
| 443 | </indexterm>
|
---|
| 444 | </listitem>
|
---|
| 445 | </varlistentry>
|
---|
| 446 |
|
---|
| 447 | <varlistentry id="gcc-nm">
|
---|
| 448 | <term><command>gcc-nm</command></term>
|
---|
| 449 | <listitem>
|
---|
| 450 | <para>A wrapper around <command>nm</command> that adds a
|
---|
[afba93b] | 451 | plugin to the command line. This program is only used
|
---|
[a885478] | 452 | to add "link time optimization" and is not useful with the
|
---|
[afba93b] | 453 | default build options</para>
|
---|
[e0901b3] | 454 | <indexterm zone="ch-system-gcc gcc-nm">
|
---|
| 455 | <primary sortas="b-gcc-nm">gc-nm</primary>
|
---|
| 456 | </indexterm>
|
---|
| 457 | </listitem>
|
---|
| 458 | </varlistentry>
|
---|
| 459 |
|
---|
| 460 | <varlistentry id="gcc-ranlib">
|
---|
| 461 | <term><command>gcc-ranlib</command></term>
|
---|
| 462 | <listitem>
|
---|
| 463 | <para>A wrapper around <command>ranlib</command> that adds a
|
---|
[afba93b] | 464 | plugin to the command line. This program is only used
|
---|
[a885478] | 465 | to add "link time optimization" and is not useful with the
|
---|
[afba93b] | 466 | default build options</para>
|
---|
[e0901b3] | 467 | <indexterm zone="ch-system-gcc gcc-ranlib">
|
---|
| 468 | <primary sortas="b-gcc-ranlib">gc-ranlib</primary>
|
---|
| 469 | </indexterm>
|
---|
| 470 | </listitem>
|
---|
| 471 | </varlistentry>
|
---|
[6a82dd9] | 472 |
|
---|
| 473 | <varlistentry id="gcov">
|
---|
| 474 | <term><command>gcov</command></term>
|
---|
| 475 | <listitem>
|
---|
| 476 | <para>A coverage testing tool; it is used to analyze programs to
|
---|
| 477 | determine where optimizations will have the most effect</para>
|
---|
| 478 | <indexterm zone="ch-system-gcc gcov">
|
---|
| 479 | <primary sortas="b-gcov">gcov</primary>
|
---|
| 480 | </indexterm>
|
---|
[4783efe] | 481 | </listitem>
|
---|
| 482 | </varlistentry>
|
---|
| 483 |
|
---|
[78cc3be] | 484 | <varlistentry id="gcov-dump">
|
---|
| 485 | <term><command>gcov-dump</command></term>
|
---|
| 486 | <listitem>
|
---|
| 487 | <para>Offline gcda and gcno profile dump tool</para>
|
---|
| 488 | <indexterm zone="ch-system-gcc gcov-dump">
|
---|
| 489 | <primary sortas="b-gcov-dump">gcov-dump</primary>
|
---|
| 490 | </indexterm>
|
---|
| 491 | </listitem>
|
---|
| 492 | </varlistentry>
|
---|
| 493 |
|
---|
| 494 | <varlistentry id="gcov-tool">
|
---|
| 495 | <term><command>gcov-tool</command></term>
|
---|
| 496 | <listitem>
|
---|
| 497 | <para>Offline gcda profile processing tool</para>
|
---|
| 498 | <indexterm zone="ch-system-gcc gcov-tool">
|
---|
| 499 | <primary sortas="b-gcov-tool">gcov-tool</primary>
|
---|
| 500 | </indexterm>
|
---|
| 501 | </listitem>
|
---|
| 502 | </varlistentry>
|
---|
| 503 |
|
---|
[4783efe] | 504 | <varlistentry id="libasan">
|
---|
[78cc3be] | 505 | <term><filename class="libraryfile">libasan</filename></term>
|
---|
[4783efe] | 506 | <listitem>
|
---|
| 507 | <para>The Address Sanitizer runtime library</para>
|
---|
| 508 | <indexterm zone="ch-system-gcc libasan">
|
---|
| 509 | <primary sortas="b-libasan">libasan</primary>
|
---|
| 510 | </indexterm>
|
---|
[6a82dd9] | 511 | </listitem>
|
---|
| 512 | </varlistentry>
|
---|
| 513 |
|
---|
[78cc3be] | 514 | <varlistentry id="libatomic">
|
---|
| 515 | <term><filename class="libraryfile">libatomic</filename></term>
|
---|
| 516 | <listitem>
|
---|
| 517 | <para>GCC atomic built-in runtime library</para>
|
---|
| 518 | <indexterm zone="ch-system-gcc libatomic">
|
---|
| 519 | <primary sortas="b-libatomic">libatomic</primary>
|
---|
| 520 | </indexterm>
|
---|
| 521 | </listitem>
|
---|
| 522 | </varlistentry>
|
---|
| 523 |
|
---|
| 524 | <varlistentry id="libcc1">
|
---|
| 525 | <term><filename class="libraryfile">libcc1</filename></term>
|
---|
| 526 | <listitem>
|
---|
| 527 | <para>The C preprocessing library</para>
|
---|
| 528 | <indexterm zone="ch-system-gcc libcc1">
|
---|
| 529 | <primary sortas="b-libcc1">libcc1</primary>
|
---|
| 530 | </indexterm>
|
---|
| 531 | </listitem>
|
---|
| 532 | </varlistentry>
|
---|
| 533 |
|
---|
[6a82dd9] | 534 | <varlistentry id="libgcc">
|
---|
| 535 | <term><filename class="libraryfile">libgcc</filename></term>
|
---|
| 536 | <listitem>
|
---|
| 537 | <para>Contains run-time support for <command>gcc</command></para>
|
---|
| 538 | <indexterm zone="ch-system-gcc libgcc">
|
---|
[afba93b] | 539 | <primary sortas="c-libgcc">libgcc</primary>
|
---|
[6a82dd9] | 540 | </indexterm>
|
---|
| 541 | </listitem>
|
---|
| 542 | </varlistentry>
|
---|
| 543 |
|
---|
[90aae6b] | 544 | <varlistentry id="libgcov">
|
---|
| 545 | <term><filename class="libraryfile">libgcov</filename></term>
|
---|
| 546 | <listitem>
|
---|
| 547 | <para>This library is linked in to a program when GCC is instructed
|
---|
| 548 | to enable profiling</para>
|
---|
| 549 | <indexterm zone="ch-system-gcc libgcov">
|
---|
| 550 | <primary sortas="c-libgcov">libgcov</primary>
|
---|
| 551 | </indexterm>
|
---|
| 552 | </listitem>
|
---|
| 553 | </varlistentry>
|
---|
| 554 |
|
---|
| 555 | <varlistentry id="libgomp">
|
---|
| 556 | <term><filename class="libraryfile">libgomp</filename></term>
|
---|
| 557 | <listitem>
|
---|
| 558 | <para>GNU implementation of the OpenMP API for multi-platform
|
---|
| 559 | shared-memory parallel programming in C/C++ and Fortran</para>
|
---|
| 560 | <indexterm zone="ch-system-gcc libgomp">
|
---|
| 561 | <primary sortas="c-libgomp">libgomp</primary>
|
---|
| 562 | </indexterm>
|
---|
| 563 | </listitem>
|
---|
| 564 | </varlistentry>
|
---|
| 565 |
|
---|
[78cc3be] | 566 | <varlistentry id="liblsan">
|
---|
| 567 | <term><filename class="libraryfile">liblsan</filename></term>
|
---|
[b755562] | 568 | <listitem>
|
---|
[78cc3be] | 569 | <para>The Leak Sanitizer runtime library</para>
|
---|
| 570 | <indexterm zone="ch-system-gcc liblsan">
|
---|
| 571 | <primary sortas="c-liblsan">liblsan</primary>
|
---|
[b755562] | 572 | </indexterm>
|
---|
| 573 | </listitem>
|
---|
| 574 | </varlistentry>
|
---|
| 575 |
|
---|
[3119ddc] | 576 | <varlistentry id="liblto_plugin">
|
---|
| 577 | <term><filename class="libraryfile">liblto_plugin</filename></term>
|
---|
| 578 | <listitem>
|
---|
| 579 | <para>GCC's Link Time Optimization (LTO) plugin allows GCC to perform
|
---|
[afba93b] | 580 | optimizations across compilation units</para>
|
---|
[3119ddc] | 581 | <indexterm zone="ch-system-gcc liblto_plugin">
|
---|
[afba93b] | 582 | <primary sortas="c-liblto_plugin">liblto_plugin</primary>
|
---|
[3119ddc] | 583 | </indexterm>
|
---|
| 584 | </listitem>
|
---|
| 585 | </varlistentry>
|
---|
[7bb9fda] | 586 |
|
---|
[3119ddc] | 587 | <varlistentry id="libquadmath">
|
---|
| 588 | <term><filename class="libraryfile">libquadmath</filename></term>
|
---|
| 589 | <listitem>
|
---|
| 590 | <para>GCC Quad Precision Math Library API</para>
|
---|
| 591 | <indexterm zone="ch-system-gcc libquadmath">
|
---|
[afba93b] | 592 | <primary sortas="c-libquadmath">libquadmath</primary>
|
---|
[3119ddc] | 593 | </indexterm>
|
---|
| 594 | </listitem>
|
---|
| 595 | </varlistentry>
|
---|
| 596 |
|
---|
[2791a8e] | 597 | <varlistentry id="libssp">
|
---|
| 598 | <term><filename class="libraryfile">libssp</filename></term>
|
---|
| 599 | <listitem>
|
---|
| 600 | <para>Contains routines supporting GCC's stack-smashing protection
|
---|
| 601 | functionality</para>
|
---|
| 602 | <indexterm zone="ch-system-gcc libssp">
|
---|
[afba93b] | 603 | <primary sortas="c-libssp">libssp</primary>
|
---|
[2791a8e] | 604 | </indexterm>
|
---|
| 605 | </listitem>
|
---|
| 606 | </varlistentry>
|
---|
| 607 |
|
---|
[6a82dd9] | 608 | <varlistentry id="libstdc">
|
---|
| 609 | <term><filename class="libraryfile">libstdc++</filename></term>
|
---|
| 610 | <listitem>
|
---|
| 611 | <para>The standard C++ library</para>
|
---|
| 612 | <indexterm zone="ch-system-gcc libstdc">
|
---|
| 613 | <primary sortas="c-libstdc++">libstdc++</primary>
|
---|
| 614 | </indexterm>
|
---|
| 615 | </listitem>
|
---|
| 616 | </varlistentry>
|
---|
| 617 |
|
---|
[78cc3be] | 618 | <varlistentry id="libstdcfs">
|
---|
| 619 | <term><filename class="libraryfile">libstdc++fs</filename></term>
|
---|
| 620 | <listitem>
|
---|
| 621 | <para>ISO/IEC TS 18822:2015 Filesystem library</para>
|
---|
| 622 | <indexterm zone="ch-system-gcc libstdcfs">
|
---|
| 623 | <primary sortas="c-libstdc++fs">libstdc++fs</primary>
|
---|
| 624 | </indexterm>
|
---|
| 625 | </listitem>
|
---|
| 626 | </varlistentry>
|
---|
| 627 |
|
---|
[6a82dd9] | 628 | <varlistentry id="libsupc">
|
---|
| 629 | <term><filename class="libraryfile">libsupc++</filename></term>
|
---|
| 630 | <listitem>
|
---|
| 631 | <para>Provides supporting routines for the C++ programming
|
---|
| 632 | language</para>
|
---|
| 633 | <indexterm zone="ch-system-gcc libsupc">
|
---|
| 634 | <primary sortas="c-libsupc++">libsupc++</primary>
|
---|
| 635 | </indexterm>
|
---|
| 636 | </listitem>
|
---|
| 637 | </varlistentry>
|
---|
| 638 |
|
---|
[f6b1d91] | 639 | <varlistentry id="libtsan">
|
---|
| 640 | <term><filename class="libraryfile">libtsan</filename></term>
|
---|
| 641 | <listitem>
|
---|
| 642 | <para>The Thread Sanitizer runtime library</para>
|
---|
| 643 | <indexterm zone="ch-system-gcc libtsan">
|
---|
| 644 | <primary sortas="c-libtsan">libtsan</primary>
|
---|
| 645 | </indexterm>
|
---|
| 646 | </listitem>
|
---|
| 647 | </varlistentry>
|
---|
| 648 |
|
---|
[78cc3be] | 649 | <varlistentry id="libubsan">
|
---|
| 650 | <term><filename class="libraryfile">libubsan</filename></term>
|
---|
| 651 | <listitem>
|
---|
| 652 | <para>The Undefined Behavior Sanitizer runtime library</para>
|
---|
| 653 | <indexterm zone="ch-system-gcc libubsan">
|
---|
| 654 | <primary sortas="c-libubsan">libubsan</primary>
|
---|
| 655 | </indexterm>
|
---|
| 656 | </listitem>
|
---|
| 657 | </varlistentry>
|
---|
| 658 |
|
---|
[6a82dd9] | 659 | </variablelist>
|
---|
| 660 |
|
---|
| 661 | </sect2>
|
---|
[673b0d8] | 662 |
|
---|
| 663 | </sect1>
|
---|