libjava/classpath/scripts/check_jni_methods.sh

   1 #!/bin/sh
   2
   3 # Fail if any command fails
   4 set -e
   5 # Don't override existing files
   6 set -C
   7
   8 TMPFILE=/tmp/check-jni-methods.$$.1
   9 TMPFILE2=/tmp/check-jni-methods.$$.2
  10 TMPFILE3=/tmp/check-jni-methods.$$.3
  11
  12 # Find all methods defined in the header files generated
  13 # from the java source files.
  14 grep -h '^JNIEXPORT .* Java_' include/*.h | \
  15         LC_ALL=C sed -e 's,.*JNICALL \(Java_[a-z_A-Z0-9]*\).*$,\1,' | \
  16         sort > $TMPFILE
  17
  18 # Find all methods in the JNI C source files.
  19 find native/jni -name \*.c | \
  20         xargs grep -h '^Java_' | \
  21         LC_ALL=C sed -e 's,^\(Java_[a-z_A-Z0-9]*\) *(.*$,\1,' > $TMPFILE2
  22 # Or in the the C++ files. (Note that cpp doesn't follow gnu conventions atm)
  23 # So we try to match both GNU style and some other style.
  24 find native/jni -name \*.cpp | \
  25         xargs grep -h '^Java_' | \
  26         LC_ALL=C sed -e 's,^\(Java_[a-z_A-Z0-9]*\) *(.*$,\1,' >> $TMPFILE2
  27 find native/jni -name \*.cpp | \
  28         xargs egrep -h '^(JNIEXPORT .* JNICALL )?Java_' | \
  29         cut -f4 -d\  | \
  30         LC_ALL=C sed -e 's,^\JNIEXPORT .* JNICALL \(Java_[a-z_A-Z0-9]*\) *(.*$,\1,' >> $TMPFILE2
  31 mv $TMPFILE2 $TMPFILE3
  32 sort $TMPFILE3 > $TMPFILE2
  33 rm $TMPFILE3
  34
  35 # Write temporary ignore file.
  36 cat > $TMPFILE3 << EOF
  37 -Java_gnu_java_awt_peer_gtk_GtkMenuComponentPeer_dispose
  38 -Java_java_lang_VMSystem_arraycopy
  39 -Java_java_lang_VMSystem_identityHashCode
  40 EOF
  41
  42 # Compare again silently.
  43 # Use fgrep and direct the output to /dev/null for compatibility with older
  44 # grep instead of using the non portable -q.
  45 if diff -b -U 0 $TMPFILE $TMPFILE2 | grep '^[+-]Java' | \
  46     fgrep -v -f $TMPFILE3 > /dev/null;
  47 then
  48   PROBLEM=1
  49   echo "Found a problem with the JNI methods declared and implemented."
  50   echo "(-) missing in implementation, (+) missing in header files"
  51
  52   # Compare the found method lists.
  53   diff -b -U 0 $TMPFILE $TMPFILE2  | grep '^[+-]Java' | fgrep -v -f $TMPFILE3
  54 fi
  55
  56 # Cleanup.
  57 rm -f $TMPFILE $TMPFILE2 $TMPFILE3
  58
  59 if test "$PROBLEM" = "1" ; then
  60   exit 1
  61 fi
  62
  63 exit 0