1 files changed, 46 insertions, 0 deletions
diff --git a/libjava/classpath/scripts/check_jni_methods.sh b/libjava/classpath/scripts/check_jni_methods.sh
new file mode 100755
index 00000000000..587b8792bb5
--- /dev/null
+++ b/libjava/classpath/scripts/check_jni_methods.sh
@@ -0,0 +1,46 @@
+#!/bin/sh
+
+TMPFILE=check-jni-methods.$$.1
+TMPFILE2=check-jni-methods.$$.2
+TMPFILE3=check-jni-methods.$$.3
+
+# Find all methods defined in the header files generated
+# from the java source files.
+grep -h '^JNIEXPORT .* Java_' include/*.h | \
+        LC_ALL=C sed -e 's,.*JNICALL \(Java_[a-z_A-Z0-9]*\).*$,\1,' | \
+	sort > $TMPFILE
+
+# Find all methods in the JNI C source files.
+find native/jni -name \*.c | \
+	xargs grep -h '^Java_' | \
+        LC_ALL=C sed -e 's,^\(Java_[a-z_A-Z0-9]*\) *(.*$,\1,' | \
+	sort > $TMPFILE2
+
+# Write temporary ignore file.
+cat > $TMPFILE3 << EOF
+-Java_gnu_java_awt_peer_gtk_GtkMenuComponentPeer_dispose
+-Java_java_lang_VMSystem_arraycopy
+-Java_java_lang_VMSystem_identityHashCode
+EOF
+
+# Compare again silently.
+diff -ub -0 $TMPFILE $TMPFILE2  | grep '^[+-]Java' | grep -q -v -f $TMPFILE3
+RESULT=$?
+
+if test "$RESULT" = "0" ; then
+  echo "Found a problem with the JNI methods declared and implemented."
+  echo "(-) missing in implementation, (+) missing in header files"
+
+  # Compare the found method lists.
+  diff -ub -0 $TMPFILE $TMPFILE2  | grep '^[+-]Java' | grep -v -f $TMPFILE3
+fi
+
+# Cleanup.
+rm -f $TMPFILE $TMPFILE2 $TMPFILE3
+
+if test "$RESULT" = "0" ; then
+  exit 1
+fi
+
+exit 0
+