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    <head>
        <meta charset='utf-8'>
        <title>2.6.3. Toolchain</title>
    </head>
    <body>

        <a href="index.html">Core OS Index</a>

        <h1 id="toolchain">2.6.3. Toolchain</h1>

        <p>Add flags to pkgmk configuration and change specific ports that
        don't build with hardening flags. More information about
        <a href="https://wiki.archlinux.org/index.php/DeveloperWiki:Security">arch security</a>,
        gentoo security,
        <a href="http://gcc.gnu.org/onlinedocs/gcc/Instrumentation-Options.html#Instrumentation-Options">gcc</a> instrumentation-options
        and <a href="http://www.gnu.org/software/libc/manual/html_node/Configuring-and-compiling.html">glibc</a>
        configuring and compiling. Edit /etc/pkgmk.conf;</p>

        <pre>
        export CPPFLAGS="-D_FORTIFY_SOURCE=2"
        export CFLAGS="-O2 -march=native -mtune=native -fstack-protector-strong --param=ssp-buffer-size=4"
        export CXXFLAGS="${CFLAGS}"
        export LDFLAGS="-z relro"
        </pre>

        <p>Above should compile most of the packages, for more 
        "restrict" and other flags combinations check <a href="conf/pkgmk.conf.harden">pkgmk.conf.handen</a>.</p>

        <h3>Core</h3>

        <p>Ports in core collection that need to be changed in order
        to build with pkgmk harden configuration.</p>

        <h4>Glibc</h4>

        <ul>
            <li><a href="http://www.linuxfromscratch.org/lfs/view/development/chapter06/glibc.html">lfs</a></li>
            <li><a href="https://git.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/glibc">arch</a></li>
        </ul>

        <pre>
        export CPPFLAGS=""
        export CFLAGS="-O2 -march=native -mtune=native"
        export CXXFLAGS="${CFLAGS}"
        export LDFLAGS=""
        </pre>

        <pre>
        ../$name-${version:0:4}/configure --prefix=/usr \
                --libexecdir=/usr/lib \
                --with-headers=$PKG/usr/include \
                --enable-kernel=3.12 \
                --enable-add-ons \
                --enable-static-nss \
                --disable-profile \
                --disable-werror \
                --without-gd \
                --enable-obsolete-rpc \
                --enable-multi-arch \
                --enable-stackguard-randomization \
                --enable-stack-protector=strong
        </pre>

        <h4>Gcc</h4>

        <ul>
            <li><a href="http://www.linuxfromscratch.org/lfs/view/development/chapter06/gcc.html">lfs</a></li>
            <li><a href="https://git.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/gcc">arch</a></li>
        </ul>

        <pre>
        export CPPFLAGS=""
        export CFLAGS="-O2 -march=native -mtune=native"
        export CXXFLAGS="${CFLAGS}"
        export LDFLAGS=""
        </pre>

        <h4>Openssl</h4>

        <p>Replace openssl by libressl, view if
        <a href="https://raw.githubusercontent.com/6c37/crux-ports-dropin/3.3/libressl/Pkgfile">libressl port</a> from 6c37-dropin is updated with
        latest <a href="https://raw.githubusercontent.com/libressl-portable/portable/master/ChangeLog">libressl upstream</a>. First install libressl
        to ensure it gets all the sources;

        <pre>
        $ sudo prt-get depinst libressl
        </pre>

        <p>After complaining about openssl files remove openssl;

        <pre>
        $ sudo prt-get remove openssl
        $ sudo prt-get depinst libressl
        </pre>


        <h4>libcap</h4>

        <ul>
            <li><a href="http://www.linuxfromscratch.org/lfs/view/development/chapter06/libcap.html">lfs</a></li>
            <li><a href="https://git.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/libcap">arch</a></li>
        </ul>

        <h4>bzip2</h4>

        <ul>
            <li><a href="http://www.linuxfromscratch.org/lfs/view/development/chapter06/bzip2.html">lfs</a></li>
            <li><a href="https://git.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/bzip2">arch</a></li>
        </ul>

        <h4>hdparm</h4>

        <ul>
            <li><a href="http://www.linuxfromscratch.org/blfs/view/svn/general/hdparm.html">lfs</a></li>
            <li><a href="https://git.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/hdparm">arch</a></li>
        </ul>

        <h3>Opt</h3>

        <h4>lsof</h4>

        <ul>
            <li><a href="http://www.linuxfromscratch.org/blfs/view/svn/general/lsof.html">lfs</a></li>
            <li><a href="https://git.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/lsof">arch</a></li>
        </ul>

        <h4>python</h4>

        <ul>
            <li><a href="http://www.linuxfromscratch.org/blfs/view/svn/general/python2.html">lfs</a></li>
            <li><a href="https://git.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/python2">arch</a></li>
        </ul>

        <h4>zip</h4>

        <ul>
            <li><a href="http://www.linuxfromscratch.org/blfs/view/svn/general/zip.html">lfs</a></li>
            <li><a href="https://git.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/zip">arch</a></li>
        </ul>

        <h4>glew</h4>

        <ul>
            <li><a href="https://git.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/glew">arch</a></li>
        </ul>

        <h4>dmenu</h4>

        <ul>
            <li><a href="https://git.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/dmenu">arch</a></li>
        </ul>

        <h4>Boost</h4>

        <ul>
            <li><a href="http://www.linuxfromscratch.org/blfs/view/svn/general/boost.html">lfs</a></li>
            <li><a href="https://git.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/boost">arch</a></li>
        </ul>

        <pre>
        export CPPFLAGS=""
        export CFLAGS="-O2 -march=native -mtune=native"
        export CXXFLAGS="${CFLAGS}"
        export LDFLAGS=""
        </pre>

        <h3>Contrib</h3>

        <h4>gsl</h4>

        <ul>
            <li><a href="http://www.linuxfromscratch.org/blfs/view/svn/general/gsl.html">lfs</a></li>
            <li><a href="https://git.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/gsl">arch</a></li>
        </ul>


        <a href="index.html">Core OS Index</a>
        <p>This is part of the Tribu System Documentation.
        Copyright (C) 2020
        Tribu Team.
        See the file <a href="../fdl-1.3-standalone.html">Gnu Free Documentation License</a>
        for copying conditions.</p>

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