[BUG] building libjava with -Os

Mon Sep 27 18:49:00 GMT 2004

On x86 linux 2.6.x using gcc 3.4.2 or 3.4.1 the -Os option causes a bad 
libgcj.so.5.0.0 image to be built.
The symptom of the problem is a NullPointerException in Calendar 
property file lookup, exhibited by the following program:
----------------------
import java.text.SimpleDateFormat;
public class Test
{
 public static void main( String[] args )
 {
 System.out.println("before"); System.out.flush();
 
 SimpleDateFormat dateFormatter =
 new SimpleDateFormat( "yy-MMM-dd HH:mm" );
 System.out.println("after"); System.out.flush();
 }
}
--------------
Running the above program with the bad libgcj.so.5.0.0 gives the
"before"
output, then the NullPointerException somewhere in the Calendar property 
file lookup.
If you build the libgcj with "-g3 -O2" instead of "-g3 -O2", then all is 
well.
--------------
$ gcj Test.java -o test.prog --main=Test
Here is my configure script:
--------------
#!/bin/sh
# See this URL for instructions on what this all means:
# http://gcc.gnu.org/install/
GCJFLAGS="-g3 -O2" # works ok
#GCJFLAGS="-g3 -Os" # causes NullPointerException in Test.java
#SRCDIR=/rt/gcc-3.4.1
SRCDIR=/rt/gcc-3.4.2
#SRCDIR=/rt/gcc-4.0-20040919
if [ -z $BUILDDIR ]; then
 BUILDDIR=gccbuild
fi
if [ ! -e $BUILDDIR ]; then
 mkdir $BUILDDIR
fi
PWD=`pwd`
cd $BUILDDIR
if [ "1ドル" = "distclean" ]; then
 shift
 make distclean
 find . -name config.cache -exec rm -f {} \;
fi
if [ "1ドル" = "configure" ]; then
 shift
 $SRCDIR/configure -v --enable-languages=c,c++,java \
 --prefix=/rt/gcc --enable-threads=posix \
 --with-system-zlib --enable-nls --without-included-gettext \
 --enable-libgcj-debug \
 --enable-__cxa_atexit --enable-clocale=gnu \
 --without-x --disable-java-awt --disable-gtk-cairo --with-gnu-ld \
 i486-linux
fi
if [ "1ドル" = "build" ]; then
 shift
 make GCJFLAGS="$GCJFLAGS" \
 LIBCXXFLAGS='-g -O2 -fno-implicit-templates' bootstrap
fi
if [ "1ドル" = "install" ]; then
 shift
 make install
fi
cd $PWD