src/check-symbols.sh

   1 #!/bin/sh
   2
   3 LC_ALL=C
   4 export LC_ALL
   5
   6 test -z "$srcdir" && srcdir=.
   7 stat=0
   8
   9
  10 if which nm 2>/dev/null >/dev/null; then
  11         :
  12 else
  13         echo "check-symbols.sh: 'nm' not found; skipping test"
  14         exit 77
  15 fi
  16
  17 echo "Checking that we are not exposing internal symbols"
  18 tested=false
  19 for suffix in so dylib; do
  20         so=.libs/libharfbuzz.$suffix
  21         if ! test -f "$so"; then continue; fi
  22
  23         EXPORTED_SYMBOLS="`nm "$so" | grep ' [BCDGINRSTVW] ' | grep -v ' _fini\>\| _init\>\| _fdata\>\| _ftext\>\| _fbss\>\| __bss_start\>\| __bss_start__\>\| __bss_end__\>\| _edata\>\| _end\>\| _bss_end__\>\| __end__\>\| __gcov_flush\>\| ___gcov_flush\>\| llvm_\| _llvm_' | cut -d' ' -f3`"
  24
  25         prefix=`basename "$so" | sed 's/libharfbuzz/hb/; s/-/_/g; s/[.].*//'`
  26
  27         # On mac, C symbols are prefixed with _
  28         if test $suffix = dylib; then prefix="_$prefix"; fi
  29
  30         echo "Processing $so"
  31         if echo "$EXPORTED_SYMBOLS" | grep -v "^${prefix}_"; then
  32                 echo "Ouch, internal symbols exposed"
  33                 stat=1
  34         fi
  35
  36         tested=true
  37 done
  38 if ! $tested; then
  39         echo "check-symbols.sh: no shared library found; skipping test"
  40         exit 77
  41 fi
  42
  43 exit $stat