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  1. #!/bin/sh
  2.  
  3. # Copyright (c) 2013, Derek Buitenhuis
  4. #
  5. # Permission to use, copy, modify, and/or distribute this software for any
  6. # purpose with or without fee is hereby granted, provided that the above
  7. # copyright notice and this permission notice appear in all copies.
  8. #
  9. # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  10. # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  11. # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  12. # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  13. # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  14. # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  15. # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  16.  
  17. # mktemp isn't POSIX, so supply an implementation
  18. mktemp() {
  19.     echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
  20. }
  21.  
  22. if [ $# -lt 2 ]; then
  23.     echo "Usage: makedef <version_script> <objects>" >&2
  24.     exit 0
  25. fi
  26.  
  27. vscript=$1
  28. shift
  29.  
  30. if [ ! -f "$vscript" ]; then
  31.     echo "Version script does not exist" >&2
  32.     exit 1
  33. fi
  34.  
  35. for object in "$@"; do
  36.     if [ ! -f "$object" ]; then
  37.         echo "Object does not exist: ${object}" >&2
  38.         exit 1
  39.     fi
  40. done
  41.  
  42. # Create a lib temporarily to dump symbols from.
  43. # It's just much easier to do it this way
  44. libname=$(mktemp -u "library").lib
  45.  
  46. trap 'rm -f -- $libname' EXIT
  47.  
  48. lib -out:${libname} $@ >/dev/null
  49. if [ $? != 0 ]; then
  50.     echo "Could not create temporary library." >&2
  51.     exit 1
  52. fi
  53.  
  54. IFS='
  55. '
  56.  
  57. # Determine if we're building for x86 or x86_64 and
  58. # set the symbol prefix accordingly.
  59. prefix=""
  60. arch=$(dumpbin -headers ${libname} |
  61.        tr '\t' ' ' |
  62.        grep '^ \+.\+machine \+(.\+)' |
  63.        head -1 |
  64.        sed -e 's/^ \{1,\}.\{1,\} \{1,\}machine \{1,\}(\(...\)).*/\1/')
  65.  
  66. if [ "${arch}" = "x86" ]; then
  67.     prefix="_"
  68. else
  69.     if [ "${arch}" != "ARM" ] && [ "${arch}" != "x64" ]; then
  70.         echo "Unknown machine type." >&2
  71.         exit 1
  72.     fi
  73. fi
  74.  
  75. started=0
  76. regex="none"
  77.  
  78. for line in $(cat ${vscript} | tr '\t' ' '); do
  79.     # We only care about global symbols
  80.     echo "${line}" | grep -q '^ \+global:'
  81.     if [ $? = 0 ]; then
  82.         started=1
  83.         line=$(echo "${line}" | sed -e 's/^ \{1,\}global: *//')
  84.     else
  85.         echo "${line}" | grep -q '^ \+local:'
  86.         if [ $? = 0 ]; then
  87.             started=0
  88.         fi
  89.     fi
  90.  
  91.     if [ ${started} = 0 ]; then
  92.         continue
  93.     fi
  94.  
  95.     # Handle multiple symbols on one line
  96.     IFS=';'
  97.  
  98.     # Work around stupid expansion to filenames
  99.     line=$(echo "${line}" | sed -e 's/\*/.\\+/g')
  100.     for exp in ${line}; do
  101.         # Remove leading and trailing whitespace
  102.         exp=$(echo "${exp}" | sed -e 's/^ *//' -e 's/ *$//')
  103.  
  104.         if [ "${regex}" = "none" ]; then
  105.             regex="${exp}"
  106.         else
  107.             regex="${regex};${exp}"
  108.         fi
  109.     done
  110.  
  111.     IFS='
  112. '
  113. done
  114.  
  115. dump=$(dumpbin -linkermember:1 ${libname})
  116.  
  117. rm ${libname}
  118.  
  119. IFS=';'
  120. list=""
  121. for exp in ${regex}; do
  122.     list="${list}"'
  123. '$(echo "${dump}" |
  124.           sed -e '/public symbols/,$!d' -e '/^ \{1,\}Summary/,$d' -e "s/ \{1,\}${prefix}/ /" -e 's/ \{1,\}/ /g' |
  125.           tail -n +2 |
  126.           cut -d' ' -f3 |
  127.           grep "^${exp}" |
  128.           sed -e 's/^/    /')
  129. done
  130.  
  131. echo "EXPORTS"
  132. echo "${list}" | sort | uniq | tail -n +2
  133.