[BUG] building libjava with -Os

Mon Sep 27 19:00:00 GMT 2004

Could you post a bug report to gcc.gnu.org/bugzilla?
Thanks
Bryce
DHollenbeck wrote:
> 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
>>