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  • BOOK/cross-tools/common/gcc-static.xml

    rcc858ed r9e0069f  
    2424    and no Threads</title>
    2525
     26    <para os="e">Here we will compile GCC, as a cross-compiler that will create
     27    executables for our target architechture, statically so that it will not
     28    need to look for Glibc's startfiles, which do not yet exist in
     29    <filename class="directory">/tools</filename>. We will use this
     30    cross-compiler, plus the cross-linker we have just installed with Binutils,
     31    to compile Glibc. After Glibc is installed into
     32    <filename class="directory">/tools</filename>, we can rebuild GCC
     33    so that it will then be able to build executables that link against the
     34    libraries in <filename class="directory">/tools</filename>.</para>
     35
    2636    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
    2737    href="../../final-system/common/gcc.xml"
    … …  
    3848<screen os="ab"><userinput>patch -Np1 -i ../&gcc-specs-patch;</userinput></screen>
    3949
    40     <para os="ag">Change the StartFile Spec so that GCC looks in 
     50    <para os="ag">Change the StartFile Spec so that GCC looks in
    4151<filename class="directory">/tools</filename>:</para>
    4252
    … …  
    6272
    6373<screen os="al"><userinput>AR=ar LDFLAGS="-Wl,-rpath,/cross-tools/lib" \
    64   ../gcc-&gcc-version;/configure --prefix=/cross-tools \
    65   --build=${CLFS_HOST} --host=${CLFS_HOST} --target=${CLFS_TARGET} \
    66   --with-sysroot=${CLFS} --with-local-prefix=/tools \
    67   --with-native-system-header-dir=/tools/include --disable-nls \
    68   --disable-shared --with-mpfr=/cross-tools --with-gmp=/cross-tools \
    69   --with-isl=/cross-tools --with-cloog=/cross-tools --with-mpc=/cross-tools \
    70   --without-headers --with-newlib --disable-decimal-float --disable-libgomp \
    71   --disable-libmudflap --disable-libssp --disable-threads --disable-multilib \
    72   --disable-libatomic --disable-libitm --disable-libsanitizer \
    73   --disable-libquadmath --disable-target-libiberty --disable-target-zlib \
    74   --with-system-zlib --enable-cloog-backend=isl --disable-isl-version-check \
    75   --enable-languages=c --enable-checking=release</userinput></screen>
     74    ../gcc-&gcc-version;/configure --prefix=/cross-tools \
     75    --build=${CLFS_HOST} --host=${CLFS_HOST} --target=${CLFS_TARGET} \
     76    --with-sysroot=${CLFS} --with-local-prefix=/tools \
     77    --with-native-system-header-dir=/tools/include --disable-nls \
     78    --disable-shared --with-mpfr=/cross-tools --with-gmp=/cross-tools \
     79    --with-isl=/cross-tools --with-cloog=/cross-tools --with-mpc=/cross-tools \
     80    --without-headers --with-newlib --disable-decimal-float --disable-libgomp \
     81    --disable-libmudflap --disable-libssp --disable-libatomic --disable-libitm \
     82    --disable-libsanitizer --disable-libquadmath --disable-threads \
     83    --disable-multilib --disable-target-zlib --with-system-zlib \
     84    --enable-languages=c --enable-checking=release</userinput></screen>
    7685
    7786    <variablelist os="am">
    7887      <title>The meaning of the new configure options:</title>
    79 
    80       <varlistentry>
    81         <term><parameter>--with-sysroot=${CLFS}</parameter></term>
    82         <listitem>
    83           <para>Tells GCC to consider ${CLFS} as the root file system.</para>
    84         </listitem>
    85       </varlistentry>
    8688
    8789     <varlistentry>
    … …  
    9698      </varlistentry>
    9799
    98 
    99100      <varlistentry>
    100101        <term><parameter>--with-native-system-headers-dir=/tools/include</parameter></term>
    … …  
    107108
    108109      <varlistentry>
    109         <term><parameter>--disable-nls</parameter></term>
    110         <listitem>
    111           <para>This disables internationalization as i18n is not needed for the
    112           cross-compile tools.</para>
     110        <term><parameter>--disable-shared</parameter></term>
     111        <listitem>
     112          <para>This tells GCC not to create a shared library.</para>
    113113        </listitem>
    114114      </varlistentry>
    … …  
    136136
    137137      <varlistentry>
    138         <term><parameter>--disable-libgomp</parameter></term>
    139         <listitem>
    140           <para>Disables the creation of runtime libraries used by GOMP.</para>
    141         </listitem>
    142       </varlistentry>
    143 
    144       <varlistentry>
    145         <term><parameter>--disable-libmudflap</parameter></term>
    146         <listitem>
    147           <para>Disables the creation of runtime libaries used by libmudflap.</para>
    148         </listitem>
    149       </varlistentry>
    150 
    151       <varlistentry>
    152         <term><parameter>--disable-libssp</parameter></term>
    153         <listitem>
    154           <para>Disables the use of Stack Smashing Protection for runtime libraries.</para>
     138        <term><parameter>--disable-lib*</parameter></term>
     139        <listitem>
     140          <para>These options prevent GCC from building a number of libraries
     141          that are not needed at this time.</para>
    155142        </listitem>
    156143      </varlistentry>
    … …  
    167154
    168155      <varlistentry>
    169         <term><parameter>--disable-libatomic</parameter></term>
    170         <listitem>
    171           <para>The atomic library isn't needed at this time.</para>
    172         </listitem>
    173       </varlistentry>
    174 
    175       <varlistentry>
    176         <term><parameter>--disable-libitm</parameter></term>
    177         <listitem>
    178           <para>The itm library isn't neeeded at this tiem.</para>
    179         </listitem>
    180       </varlistentry>
    181 
    182       <varlistentry>
    183         <term><parameter>--disable-libsanitizer</parameter></term>
    184         <listitem>
    185           <para>The sanitizer library isn't needed at this time.</para>
    186         </listitem>
    187       </varlistentry>
    188 
    189       <varlistentry>
    190         <term><parameter>--disable-libquadmath</parameter></term>
    191         <listitem>
    192           <para>The quadmath library isn't needed at this time.</para>
     156        <term><parameter>--disable-target-zlib</parameter></term>
     157        <listitem>
     158          <para>This tells GCC stuff.</para>
     159        </listitem>
     160      </varlistentry>
     161
     162      <varlistentry>
     163        <term><parameter>--with-system-zlib</parameter></term>
     164        <listitem>
     165          <para>This tells GCC to link to the system-installed zlib instead
     166          of the one in its source tree.</para>
    193167        </listitem>
    194168      </varlistentry>
    … …  
    231205<screen os="ar"><userinput>make install-gcc install-target-libgcc</userinput></screen>
    232206
     207    <para os="as">Copy <filename class="headerfile">libiberty.h</filename> to
     208    <filename class="directory">/tools/include</filename> directory:</para>
     209
     210<screen os="at"><userinput>cp -v ../gcc-&gcc-version;/include/libiberty.h /tools/include</userinput></screen>
     211
    233212  </sect2>
    234213
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