libjava/classpath/scripts/check_jni_methods.sh

   1 #!/bin/sh
   2
   3 # Fail if any command fails
   4 set -e
   5
   6 TMPFILE=/tmp/check-jni-methods.$$.1
   7 TMPFILE2=/tmp/check-jni-methods.$$.2
   8 TMPFILE3=/tmp/check-jni-methods.$$.3
   9
  10 # Find all methods defined in the header files generated
  11 # from the java source files.
  12 grep -h '^JNIEXPORT .* Java_' include/*.h | \
  13         LC_ALL=C sed -e 's,.*JNICALL \(Java_[a-z_A-Z0-9]*\).*$,\1,' | \
  14         sort > $TMPFILE
  15
  16 # Find all methods in the JNI C source files.
  17 find native/jni -name \*.c | \
  18         xargs grep -h '^Java_' | \
  19         LC_ALL=C sed -e 's,^\(Java_[a-z_A-Z0-9]*\).*$,\1,' > $TMPFILE2
  20 # Or in the the C++ files. (Note that cpp doesn't follow gnu conventions atm)
  21 # So we try to match both GNU style and some other style.
  22 find native/jni -name \*.cpp | \
  23         xargs grep -h '^Java_' | \
  24         LC_ALL=C sed -e 's,^\(Java_[a-z_A-Z0-9]*\).*$,\1,' >> $TMPFILE2
  25 find native/jni -name \*.cpp | \
  26         xargs egrep -h '^(JNIEXPORT .* JNICALL )?Java_' | \
  27         cut -f4 -d\  | \
  28         LC_ALL=C sed -e 's,^\JNIEXPORT .* JNICALL \(Java_[a-z_A-Z0-9]*\).*$,\1,' >> $TMPFILE2
  29 mv $TMPFILE2 $TMPFILE3
  30 sort $TMPFILE3 | uniq > $TMPFILE2
  31 rm $TMPFILE3
  32
  33 # Write temporary ignore file.
  34 cat > $TMPFILE3 << EOF
  35 -Java_gnu_java_awt_peer_gtk_GtkMenuComponentPeer_dispose
  36 -Java_java_lang_VMSystem_arraycopy
  37 -Java_java_lang_VMSystem_identityHashCode
  38 EOF
  39
  40 # Compare again silently.
  41 # Use fgrep and direct the output to /dev/null for compatibility with older
  42 # grep instead of using the non portable -q.
  43 if diff -U 0 $TMPFILE $TMPFILE2 | grep '^[+-]Java' | \
  44     fgrep -v -f $TMPFILE3 > /dev/null;
  45 then
  46   PROBLEM=1
  47   echo "Found a problem with the JNI methods declared and implemented."
  48   echo "(-) missing in implementation, (+) missing in header files"
  49
  50   # Compare the found method lists.
  51   diff -U 0 $TMPFILE $TMPFILE2  | grep '^[+-]Java' | fgrep -v -f $TMPFILE3
  52 fi
  53
  54 # Cleanup.
  55 rm -f $TMPFILE $TMPFILE2 $TMPFILE3
  56
  57 if test "$PROBLEM" = "1" ; then
  58   exit 1
  59 fi
  60
  61 exit 0