# Lib32 Packages for Chakra, part of chakra-project.org
#
# maintainer: Giuseppe CalĂ  <jiveaxe@gmail.com>
# maintainer: Anke Boersma <abveritas[at]chakra-project[dot]org>
# maintainer: Manuel Tortosa <manutortoasĂ@chakra-project.org>

# toolchain build order: 
# lib32-glibc > binutils-multilib > gcc-multilib > binutils-multilib > lib32-glibc

_pkgname=glibc
pkgname=lib32-$_pkgname
pkgver=2.15
pkgrel=2
_glibcdate=20120419
pkgdesc="GNU C Library for multilib"
arch=('x86_64')
url="http://www.gnu.org/software/libc"
license=('GPL' 'LGPL')
depends=("glibc>=$pkgver")
#makedepends=('gcc-multilib>=4.7')
makedepends=('gcc-multilib')
options=('!strip' '!emptydirs')
source=(http://chakra.sourceforge.net/sources/${_pkgname}/${_pkgname}-${pkgver}_${_glibcdate}.tar.xz
        glibc-2.15-do-not-install-timezone-files.patch
        glibc-2.15-do-not-install-timezone-files-2.patch
        glibc-__i686.patch
        glibc-2.12.2-ignore-origin-of-privileged-program.patch
        glibc-2.14-libdl-crash.patch
        glibc-2.14-reexport-rpc-interface.patch
        glibc-2.14-reinstall-nis-rpc-headers.patch
        glibc-2.15-fix-res_query-assert.patch
        glibc-2.15-lddebug-scopes.patch
        glibc-2.15-revert-c5a0802a.patch
        glibc-2.15-scanf.patch
        glibc-2.15-ifunc.patch
        glibc-2.15-avx.patch
        glibc-2.15-strcasecmp-disable-avx.patch
        glibc-2.15-gb18030.patch
        glibc-2.15-revert-netlink-cache.patch
        glibc-2.15-arena.patch
        glibc-2.15-negative-result-cache.patch
        glibc-2.15-multiarch-x86-strcmp.patch
        glibc-2.15-vdso.patch
        glibc-2.15-feraiseexcept-plt.patch
        glibc-2.15-vfprintf-nargs.patch
        glibc-2.15-__libc_res_nquerydomain-out-of-bounds.patch
        glibc-2.15-fmtmsg-locking.patch
        glibc-2.15-non-signalling-comparisons.patch
        glibc-2.15-rintf-rounding.patch
        glibc-2.15-nearbyintf-rounding.patch
        glibc-2.15-confstr-local-buffer-extent.patch
        lib32-glibc.conf)
md5sums=('c0487f4e83db1b9b30d7989fc47dbead'
         '349227bcedb19cea008fbcb2c7e1a582'
         '880439de2c608177ed1d749722d26820'
         '40cd342e21f71f5e49e32622b25acc52'
         'b042647ea7d6f22ad319e12e796bd13e'
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         '62288103a28f5f779da4ee64621d81d1'
         '34baaa90a8fcd500adfbe8c609ed81f1'
         '66898e99bf9279db25f1d9b058116c2e'
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         '5022c0c96c770fdaf5225aa44297f13c'
         'f65fa79b4bd2b5e7ed5563a3d1beadd3'
         '3eae060bc0eac2a85c07956d2b799f15'
         'a55eadc2ed4ce869a1e193f0bfb72444'
         'a0219bb48baf56b3085c118b6db2c1a6'
         '3d9ca85e0e8507830b3fb67cdee0c04b'
         '3168364ac51cc7ad479eb6390a5897ff'
         'de9399a35a9c14f793c66f1230674d67'
         '9ea0f925e508b58042f9c1f83871be6a'
         '56e51cd17aa23af99cba46dfadedde38'
         'f59bd7c9dd6330bfacb3334b09ef73db'
         '104300a586580bb340bb70162a196c80'
         '50dc7006874cbd86ee436044752f5228'
         '4ed0bb09c3851cd9cb5e39c946a8a334'
         '6e052f1cb693d5d3203f50f9d4e8c33b')

build() {
  cd ${srcdir}/glibc

  # timezone data is in separate package (tzdata)
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=482ff4da
  patch -p1 -i ${srcdir}/glibc-2.15-do-not-install-timezone-files.patch
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=a458e7fe
  patch -p1 -i ${srcdir}/glibc-2.15-do-not-install-timezone-files-2.patch

  # undefine __i686
  # http://sourceware.org/glibc/wiki/Release/2.15#Build_Failures
  patch -p1 -i ${srcdir}/glibc-__i686.patch

  # http://www.exploit-db.com/exploits/15274/
  # http://sourceware.org/git/?p=glibc.git;a=patch;h=d14e6b09  (fedora branch)
  patch -p1 -i ${srcdir}/glibc-2.12.2-ignore-origin-of-privileged-program.patch

  # http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=675155e9  (fedora branch)
  # http://sourceware.org/ml/libc-alpha/2011-06/msg00006.html
  patch -p1 -i ${srcdir}/glibc-2.14-libdl-crash.patch

  # re-export RPC interface until libtirpc is ready as a replacement
  # http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=acee4873  (fedora branch)
  patch -p1 -i ${srcdir}/glibc-2.14-reexport-rpc-interface.patch
  # http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=bdd816a3  (fedora branch)
  patch -p1 -i ${srcdir}/glibc-2.14-reinstall-nis-rpc-headers.patch

  # fix res_query assertion
  # http://sourceware.org/bugzilla/show_bug.cgi?id=13013
  patch -p1 -i ${srcdir}/glibc-2.15-fix-res_query-assert.patch

  # propriety nvidia crash - https://bugzilla.redhat.com/show_bug.cgi?id=737223
  # http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=0c95ab64  (fedora branch)
  patch -p1 -i ${srcdir}/glibc-2.15-lddebug-scopes.patch

  # revert commit c5a0802a - causes various hangs
  # https://bugzilla.redhat.com/show_bug.cgi?id=769421
  # Note: fedora may have actual fix (not submitted upstream yet...)
  # http://pkgs.fedoraproject.org/gitweb/?p=glibc.git;a=blob_plain;f=glibc-rh552960-2.patch
  patch -p1 -i ${srcdir}/glibc-2.15-revert-c5a0802a.patch

  # fix realloc usage in vfscanf
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=20b38e03
  patch -p1 -i ${srcdir}/glibc-2.15-scanf.patch

  # fix ifunc relocations
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=6ee65ed6
  patch -p1 -i ${srcdir}/glibc-2.15-ifunc.patch

  # fix AVX detection
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=afc5ed09
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=08cf777f
  patch -p1 -i ${srcdir}/glibc-2.15-avx.patch
  # and "fix" strcasecmp
  patch -p1 -i ${srcdir}/glibc-2.15-strcasecmp-disable-avx.patch

  # fix GB18030 charmap
  # http://sourceware.org/bugzilla/show_bug.cgi?id=11837
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=2a57bd79  (fedora branch)
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=3d828a61  (fedora branch)
  patch -p1 -i ${srcdir}/glibc-2.15-gb18030.patch

  # fix crash in __nscd_get_mapping if nscd not running
  # http://sourceware.org/bugzilla/show_bug.cgi?id=13594 (potential "fix" in comment)
  # reverts commit 3a2c0242 and other necessary following changes...
  patch -p1 -i ${srcdir}/glibc-2.15-revert-netlink-cache.patch

  # handle ARENA_TEST correctly
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=41b81892
  patch -p1 -i ${srcdir}/glibc-2.15-arena.patch

  # Do not cache negative results in nscd if these are transient
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=3e1aa84e
  patch -p1 -i ${srcdir}/glibc-2.15-negative-result-cache.patch

  # strcasecmp_l, strncasecmp_l act as strcmp for multiarch x86
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=0bab47b6
  patch -p1 -i ${srcdir}/glibc-2.15-multiarch-x86-strcmp.patch

  # always set l_used for vDSO.
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=1f393a11
  patch -p1 -i ${srcdir}/glibc-2.15-vdso.patch

  # fix x86 PLT slot usage for feraiseexcept
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=7c35ffed
  patch -p1 -i ${srcdir}/glibc-2.15-feraiseexcept-plt.patch

  # vfprintf nargs overflow - CVE-2012-0864
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=7c1f4834
  patch -p1 -i ${srcdir}/glibc-2.15-vfprintf-nargs.patch

  # avoid out ouf bounds read in __libc_res_nquerydomain
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=8fdceb2e
  patch -p1 -i ${srcdir}/glibc-2.15-__libc_res_nquerydomain-out-of-bounds.patch

  # make fmtmsg function thread-safe
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=7724defc
  patch -p1 -i ${srcdir}/glibc-2.15-fmtmsg-locking.patch

  # use non-signaling floating-point comparisons in math functions
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=92221550
  patch -p1 -i ${srcdir}/glibc-2.15-non-signalling-comparisons.patch

  # fix rintf rounding.
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=fe45ce09
  patch -p1 -i ${srcdir}/glibc-2.15-rintf-rounding.patch

  # fix nearbyintf rounding
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=6cbeae47
  patch -p1 -i ${srcdir}/glibc-2.15-nearbyintf-rounding.patch

  # fix varaible scope issue in confstr
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=ac4c54f0
  # http://sourceware.org/git/?p=glibc.git;a=commit;h=d6a403f9
  patch -p1 -i ${srcdir}/glibc-2.15-confstr-local-buffer-extent.patch

  cd ${srcdir}
  rm -vRf glibc-build
  mkdir -p glibc-build
  cd glibc-build

  export CC="gcc -m32"

  # Hack to fix NPTL issues with Xen, only required on 32bit platforms
  export CFLAGS="${CFLAGS} -mno-tls-direct-seg-refs"

  echo "slibdir=/usr/lib32" >> configparms

  ${srcdir}/glibc/configure --prefix=/usr \
      --libdir=/usr/lib32 --libexecdir=/usr/lib32 \
      --with-headers=/usr/include \
      --enable-add-ons=nptl,libidn \
      --enable-kernel=2.6.32 \
      --with-tls --with-__thread \
      --enable-bind-now --without-gd \
      --without-cvs --disable-profile \
      --enable-multi-arch i686-unknown-linux-gnu

  make
}

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

  # some errors are expected - manually check log files
  make -k check || true
}

package() {
  cd ${srcdir}/glibc-build
  make install_root=${pkgdir} install

  rm -rf ${pkgdir}/{etc,sbin,usr/{bin,sbin,share},var}
 
  # We need one 32 bit specific header file
  find ${pkgdir}/usr/include -type f -not -name stubs-32.h -delete

  cd $pkgdir
  strip $STRIP_BINARIES usr/lib32/getconf/*

  strip $STRIP_STATIC usr/lib32/*.a

  strip $STRIP_SHARED usr/lib32/{libanl,libBrokenLocale,libcidn,libcrypt}-${pkgver}.so \
                      usr/lib32/libnss_{compat,db,dns,files,hesiod,nis,nisplus}-${pkgver}.so \
                      usr/lib32/{libdl,libm,libnsl,libresolv,librt,libutil}-${pkgver}.so \
                      usr/lib32/{libmemusage,libpcprofile,libSegFault}.so \
                      usr/lib32/{pt_chown,{audit,gconv}/*.so}

  # Dynamic linker
  install -d -m755 ${pkgdir}/lib
  ln -s ../usr/lib32/ld-linux.so.2 ${pkgdir}/lib/

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

  # Symlink /usr/lib32/locale to /usr/lib/locale
  ln -s ../lib/locale "$pkgdir/usr/lib32/locale"
}