# maintainer: Manuel Tortosa <manutortosa[at]chakra-project[dot]org>

pkgname=glibc
pkgver=2.18
pkgrel=5
pkgdesc="GNU C Library"
arch=('x86_64')
url="http://www.gnu.org/software/libc"
license=('GPL' 'LGPL')
groups=('base')
depends=('linux-api-headers>=3.10' 'tzdata')
makedepends=('gcc>=4.8')
backup=(etc/gai.conf
        etc/locale.gen
        etc/nscd.conf)
options=('!strip' 'staticlibs')
install=glibc.install
source=(http://ftp.gnu.org/gnu/libc/${pkgname}-${pkgver}.tar.xz{,.sig}
        glibc-2.18-readdir_r-CVE-2013-4237.patch
	glibc-2.18-malloc-corrupt-CVE-2013-4332.patch
	glibc-2.18-strcoll-CVE-2012-4412+4424.patch
	glibc-2.18-ptr-mangle-CVE-2013-4788.patch
        glibc-2.18-strstr-hackfix.patch
        nscd.service
        nscd.tmpfiles
        locale.gen.txt
        locale-gen  # parallel version, see https://bugs.archlinux.org/task/36955
        locale.patch
        glibc.conf)
sha1sums=('1f0e4e7ba5fe1f45ffd0548b6c36caef0bc7e51f'
          'SKIP'
          '7ecd9abb03495a620f0e4a2d45a6046310649fde'
          'd3dd647f2f292c44f31311ea3cf9e39db7ba798e'
          '04f38fe8508e2541c9d946a9d788c60f160c1cc0'
          'f0117b071f5f24c2522231aa9452342bea0d0c3f'
          'f928cedf0fb3d2bf046975680c637d6b09ad93cf'
          '18406ad58e562a85a13b3cebe938841cf5d624ff'
          '1a9eb962463409159792a1a2d768524f37ce2e7b'
          '61f72da0b1f44af013c8a6873a298c2b6efb3f3d'
          'b8a9e83a5c0d22066a7923f07d02c88484d438ba'
          '46afb75ca2197d84d6e8cc426389a1e7d8aca479'
          'b335a2526d631aaed53d3a88cc3904a51fccd1a4')

prepare() {
  cd ${srcdir}/${pkgname}-${pkgver}
  
  # upstream commit 91ce4085
  patch -p1 -i $srcdir/glibc-2.18-readdir_r-CVE-2013-4237.patch

  # upstream commits 1159a193, 55e17aad and b73ed247
  patch -p1 -i $srcdir/glibc-2.18-malloc-corrupt-CVE-2013-4332.patch

  # upstream commits 1326ba1a, 141f3a77 and 303e567a
  # https://sourceware.org/ml/libc-alpha/2013-08/msg00394.html
  # https://sourceware.org/ml/libc-alpha/2013-08/msg00462.html
  patch -p1 -i $srcdir/glibc-2.18-strcoll-CVE-2012-4412+4424.patch

  # upstream commits c61b4d41 and 0b1f8e35
  patch -p1 -i $srcdir/glibc-2.18-ptr-mangle-CVE-2013-4788.patch

  # hack fix for strstr issues on x86
  patch -p1 -i $srcdir/glibc-2.18-strstr-hackfix.patch

  # patch regarding locale generation, severly affects ISO creation
  # origin: http://comments.gmane.org/gmane.comp.lib.glibc.alpha/31543
  patch -p1 -u -i ${srcdir}/locale.patch

  mkdir ${srcdir}/glibc-build
}


build() {
  cd ${srcdir}/glibc-build

  echo "slibdir=/lib" >> configparms
  
  # remove hardening options for building libraries
  CFLAGS=${CFLAGS/-fstack-protector/}
  CPPFLAGS=${CPPFLAGS/-D_FORTIFY_SOURCE=2/}

  ${srcdir}/glibc-${pkgver}/configure --prefix=/usr \
      --libdir=/usr/lib --libexecdir=/usr/lib \
      --with-headers=/usr/include \
      --enable-add-ons=nptl,libidn \
      --enable-obsolete-rpc \
      --enable-kernel=2.6.32 \
      --enable-bind-now --disable-profile \
      --enable-stackguard-randomization \
      --enable-lock-elision \
      --enable-multi-arch

  # build libraries with hardening disabled
  echo "build-programs=no" >> configparms
  make
  
  # re-enable hardening for programs
  sed -i "/build-programs=/s#no#yes#" configparms
  echo "CC += -fstack-protector -D_FORTIFY_SOURCE=2" >> configparms
  echo "CXX += -fstack-protector -D_FORTIFY_SOURCE=2" >> configparms
  make

  # remove harding in preparation to run test-suite
  sed -i '2,4d' configparms
}

check() {
  # bug to file - the linker commands need to be reordered
  LDFLAGS=${LDFLAGS/--as-needed,/}

  cd ${srcdir}/glibc-build
  #  from LFS:
  #  The nptl/tst-clock2, nptl/tst-attr3, tst/tst-cputimer1, and rt/tst-cpuclock2 tests have been known to fail.
  #  The reason is not completely understood, but indications are that minor timing issues can trigger these failures. 
  # -k is an ugly workaround
  make -k check 2>&1 | tee glibc-check-log
}

package() {
  cd ${srcdir}/glibc-build

  install -dm755 ${pkgdir}/etc
  touch ${pkgdir}/etc/ld.so.conf

  make install_root=${pkgdir} install

  rm -f ${pkgdir}/etc/ld.so.{cache,conf}

  install -dm755 ${pkgdir}/{,usr/{sbin,lib/{,locale,systemd/system,tmpfiles.d}}}

  install -m644 ${srcdir}/glibc-${pkgver}/nscd/nscd.conf ${pkgdir}/etc/nscd.conf
  sed -i -e 's/^\tserver-user/#\tserver-user/' ${pkgdir}/etc/nscd.conf
  install -m644 ${srcdir}/nscd.service ${pkgdir}/usr/lib/systemd/system
  install -m644 ${srcdir}/nscd.tmpfiles ${pkgdir}/usr/lib/tmpfiles.d/nscd.conf

  install -m755 ${srcdir}/locale-gen ${pkgdir}/usr/sbin
  install -m644 ${srcdir}/glibc-${pkgver}/posix/gai.conf ${pkgdir}/etc/gai.conf

  # create /etc/locale.gen
  install -m644 ${srcdir}/locale.gen.txt ${pkgdir}/etc/locale.gen
  sed -e '1,3d' -e 's|/| |g' -e 's|\\| |g' -e 's|^|#|g' \
    ${srcdir}/glibc-${pkgver}/localedata/SUPPORTED >> ${pkgdir}/etc/locale.gen

  # fix for the linker
  sed -i '/RTLDLIST/s%lib64%lib%' ${pkgdir}/usr/bin/ldd
  # Comply with multilib binaries, they look for the linker in /lib64
  mkdir ${pkgdir}/lib64
  cd ${pkgdir}/lib64
  ln -v -s ../lib/ld* .

  cd ${pkgdir}
  strip $STRIP_BINARIES sbin/{ldconfig,sln} \
                        usr/bin/{gencat,getconf,getent,iconv,locale} \
                        usr/bin/{localedef,pcprofiledump,rpcgen,sprof} \
                        usr/lib/getconf/* \
                        usr/sbin/{iconvconfig,nscd}

  strip $STRIP_STATIC usr/lib/*.a 

  strip $STRIP_SHARED lib/{libanl,libBrokenLocale,libcidn,libcrypt}-${pkgver}.so \
                      lib/libnss_{compat,dns,files,hesiod,nis,nisplus}-${pkgver}.so \
                      lib/{libdl,libm,libnsl,libresolv,librt,libutil}-${pkgver}.so \
                      lib/{libmemusage,libpcprofile,libSegFault}.so \
                      usr/lib/{audit,gconv}/*.so

  # Add /usr/lib32 to the default library search path
  install -Dm644 "$srcdir/glibc.conf" "$pkgdir/etc/ld.so.conf.d/glibc.conf"
}