xcodescripts/linker_arguments.sh

   1 #!/bin/bash -x
   2
   3 if [ $# -ne 5 ]; then
   4     echo "Usage: $0 <archs> <variants> <outputdir> <sdkroot> <srcroot>" 1>&2
   5     exit 1
   6 fi
   7
   8 shopt -s nullglob
   9
  10 ARCHS="$1"
  11 VARIANTS="$2"
  12 OUTPUTDIR="$3"
  13 SDKROOT="$4"
  14 SRCROOT="$5"
  15
  16 LIBSYS="${SDKROOT}/${SDK_INSTALL_ROOT}/usr/local/lib/system"
  17 LSYS="${SDKROOT}/${SDK_INSTALL_ROOT}/usr/lib/system"
  18
  19 mkdir -p "${OUTPUTDIR}"
  20
  21 for arch in ${ARCHS}; do
  22     for variant in ${VARIANTS}; do
  23         OUTPUTFILE="${OUTPUTDIR}/linker_arguments.${arch}.${variant}.txt"
  24         OUTPUTCONFIG="${OUTPUTDIR}/config.${arch}.${variant}.h"
  25         TEMPDIR="${OUTPUTDIR}/linker_arguments_tmp"
  26
  27         SDK_INSTALL_VARIANT="${DRIVERKIT:+_driverkit}"
  28
  29         mkdir -p "${TEMPDIR}"
  30
  31         ACTUALLIBS="${TEMPDIR}/${arch}.${variant}.actuallibs"
  32         ALLLIBS="${TEMPDIR}/${arch}.${variant}.alllibs"
  33         FROMUSRLIBSYSTEM="${TEMPDIR}/${arch}.${variant}.fromusrlibsystem"
  34         FROMUSRLOCALLIBSYSTEM="${TEMPDIR}/${arch}.${variant}.fromusrlocallibsystem"
  35         INUSRLIBSYSTEM="${TEMPDIR}/${arch}.${variant}.inusrlibsystem"
  36         INUSRLOCALLIBSYSTEM="${TEMPDIR}/${arch}.${variant}.inusrlocallibsystem"
  37         MISSINGLIBS="${TEMPDIR}/${arch}.${variant}.missinglibs"
  38         POSSIBLEUSRLOCALLIBSYSTEM="${TEMPDIR}/${arch}.${variant}.possibleusrlocallibsystem"
  39         OPTIONALLIBS="${SRCROOT}/optionallibs${SDK_INSTALL_VARIANT}"
  40         REQUIREDLIBS="${SRCROOT}/requiredlibs${SDK_INSTALL_VARIANT}"
  41
  42         if [ ${variant} = "normal" ]; then
  43             SUFFIX=""
  44         else
  45             SUFFIX="_${variant}"
  46         fi
  47
  48         rm -f "${OUTPUTFILE}"
  49
  50         cat ${REQUIREDLIBS} ${OPTIONALLIBS} | sort > ${ALLLIBS}
  51
  52         # Strip away variant information to do presence checks
  53         # non-normal variants can always link against normal clients
  54         cd ${LSYS} && ls lib*.{dylib,tbd,api,spi} | sed -E -e 's/_(debug|profile|static)\././' | while read l; do
  55                 if [ "${l: -6}" == ".dylib" ]; then
  56                         xcrun -sdk "${SDKROOT}" lipo "${LSYS}/${l}" -verify_arch "${arch}" 2>/dev/null
  57                 else
  58                         xcrun -sdk "${SDKROOT}" tapi archive "${LSYS}/${l}" --verify-arch "${arch}" 2>/dev/null
  59                 fi
  60                 if [ $? -eq 0 ]; then
  61                           echo "${l}"
  62                 fi
  63         done | sed -E -e 's/^lib//' -e 's/\..*$$//'  | sort -u > ${INUSRLIBSYSTEM}
  64         [ -d ${LIBSYS} ] && cd ${LIBSYS} && ls lib*.a | sed -E -e 's/_(debug|profile|static)\././' | while read l; do
  65             xcrun -sdk "${SDKROOT}" lipo "${LIBSYS}/${l}" -verify_arch "${arch}" 2>/dev/null
  66             if [ $? -eq 0 ]; then
  67                 echo "${l}"
  68             fi
  69         done | sed -E -e 's/^lib//' -e 's/\..*$$//' | sort -u > ${INUSRLOCALLIBSYSTEM}
  70
  71         while read line ; do
  72             for lib in ${line} ; do
  73                 egrep "^${lib}$" ${INUSRLIBSYSTEM} && break
  74             done
  75         done < ${ALLLIBS} > ${FROMUSRLIBSYSTEM}
  76
  77         while read line ; do
  78             for lib in ${line} ; do
  79                 egrep -q "^${lib}$" ${INUSRLIBSYSTEM} && break
  80                 egrep "^${lib}$" ${INUSRLOCALLIBSYSTEM} && break
  81             done
  82         done < ${ALLLIBS} > ${POSSIBLEUSRLOCALLIBSYSTEM}
  83
  84         comm -13 ${FROMUSRLIBSYSTEM} ${POSSIBLEUSRLOCALLIBSYSTEM} > ${FROMUSRLOCALLIBSYSTEM}
  85         cat ${FROMUSRLIBSYSTEM} ${FROMUSRLOCALLIBSYSTEM} | sort > ${ACTUALLIBS}
  86
  87         while read line ; do
  88             found=0
  89             for lib in ${line} ; do
  90                 egrep -q "^${lib}$" ${ACTUALLIBS} && found=1
  91             done
  92             [[ $found == 0 ]] && echo ${line}
  93         done < ${REQUIREDLIBS} > ${MISSINGLIBS}
  94
  95         if [ -s ${MISSINGLIBS} ]; then
  96             echo '*** missing required libs ***'
  97             cat ${MISSINGLIBS}
  98             exit 1
  99         fi
 100
 101         cat ${FROMUSRLIBSYSTEM} | while read lib; do
 102                 echo "#define HAVE_"$(echo "${lib/_sim/}" | tr 'a-z' 'A-Z')" 1"
 103         done >> "${OUTPUTCONFIG}"
 104
 105         cat ${FROMUSRLIBSYSTEM} | while read lib; do
 106             echo "-Wl,-reexport-l${lib}"
 107         done >> "${OUTPUTFILE}"
 108
 109         # Allow static archives to degrade to their non-variant versions
 110         cat ${FROMUSRLOCALLIBSYSTEM} | while read lib; do
 111             LPATH="${LIBSYS}/lib${lib}${SUFFIX}.a"
 112             xcrun -sdk "${SDKROOT}" lipo "${LPATH}" -verify_arch "${arch}" 2>/dev/null
 113             if [ $? -ne 0 ]; then
 114                 LPATH="${LIBSYS}/lib${lib}.a"
 115             fi
 116             echo "-Wl,-force_load,${LPATH}"
 117         done >> "${OUTPUTFILE}"
 118
 119         echo "Final contents of ${OUTPUTFILE}:"
 120         cat "${OUTPUTFILE}"
 121     done
 122 done
 123
 124 MARKERFILE="${OUTPUTDIR}/linker_arguments_changed.c"
 125
 126 for arch in ${ARCHS}; do
 127     for variant in ${VARIANTS}; do
 128         OUTPUTFILE="${OUTPUTDIR}/linker_arguments.${arch}.${variant}.txt"
 129         cat "${OUTPUTFILE}"
 130     done
 131 done | shasum | sed 's,^,// ,' > "${MARKERFILE}"
 132
 133 exit 0