Small example of livelock regression in garbage collector for GCJ 3.3 under Win32

[Andrew Haley]

Øyvind Harboe writes:
 > >  > Division by zero can also cause the application to 
 > > terminate  > (as well as livelock).  > 
 > >  > If I add "throw new NullPointerException();" I do not see 
 > > the problem.
 > > 
 > > Your libgcj has been built incorrectly.  It is essential that 
 > > -fcheck-references and -fuse-divide-subroutine are used at 
 > > all times and that libgcj is built with these compiler 
 > > options. libgcj/configure.host should set these options where 
 > > necessary.  As far as I can see, it does.
 > 
 > There's a nasty tripwire if I ever saw one.
 > 
 > 
 > 
 > \thisiscool-gcc\gcc-3.3\bin\gcj -v
 > Reading specs from
 > \thisiscool-gcc\gcc-3.3\bin\..\lib\gcc-lib\i686-pc-mingw32\3.
 > 3.1\specs
 > Reading specs from
 > \thisiscool-gcc\gcc-3.3\bin\..\lib\gcc-lib\i686-pc-mingw32\3.
 > 3.1\..\..\..\libgcj.spec
 > rename spec lib to liborig
 > Configured with: /datal/gcc/gcc/configure
 > --prefix=/datal/gcc/build/wingcc --bui
 > ld=i686-pc-linux-gnu --host=i686-pc-mingw32 --target=i686-pc-mingw32
 > --enable-la
 > nguages=c,c++,java --with-gcc --with-gnu-as --with-gnu-ld
 > --with-as=i686-pc-ming
 > w32-as --with-ld=i686-pc-mingw32-ld --enable-threads=win32 --disable-nls
 > --disab
 > le-win32-registry --disable-shared --disable-debug --disable-multilib
 > --without-
 > newlib --enable-libgcj --disable-java-awt --without-x
 > --enable-java-gc=boehm --d
 > isable-libgcj-debug --enable-interpreter --enable-hash-synchronization
 > Thread model: win32
 > gcc version 3.3.1 20030516 (prerelease)

What on earth are you using for a mailer?  :-)

Anyway, let's see your libgcj.spec.

Andrew.