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