Joe Hoffert writes: > Hi, Andrew. > > On Tue, 2007-12-04 at 18:13 +0000, Andrew Haley wrote: > > Joe Hoffert writes: > > > > > You're right that using gcj or g++ to link doesn't matter. The > > > difference with what I was doing before was the compiler/linker > > > options. > > > > Can you let us know what in our instructions didn't give you the > > information you needed? It might help us improve our documentation. > > I didn't see anything in gcj.pdf that talks about conflicting compiler > or linker options. The options that gave me trouble are the > -fvisibility=hidden and -fvisibility-inlines-hidden. When I take these > out the program compiles and links. I think I'll be fine without these > options. Ah, OK. I'm not sure we could fix that, even in principle: you may well be the first person ever to experiment with changing symbol visibility, and I would have had to try it to discover what would happen. OK, I could have guessed that it wouldn't work! > Now the program is aborting with the first "Java" call. I'm simply > calling a method specified by the gcjh generated header file. The code > is aborting from initializeClass: > > (gdb) where > #0 0x00110402 in __kernel_vsyscall () > #1 0x0084bfa0 in raise () from /lib/libc.so.6 > #2 0x0084d8b1 in abort () from /lib/libc.so.6 > #3 0x02da0d38 in _Jv_Throw () from /usr/lib/libgcj.so.8rh > #4 0x02ddc888 in java::lang::Class::initializeClass () > from /usr/lib/libgcj.so.8rh > #5 0x02dddd36 in _Jv_InitClass () from /usr/lib/libgcj.so.8rh > #6 0x00145a44 in > multishot.examples.RicochetApp.initialize(java.lang.String, > java.lang.String, int, java.lang.String)multishot.examples.RicochetApp > () > from /home/jhoffert/Ricochet/trimmed/c > ++-java/linux-jdk1.5/libricochet.so > #7 0x08048ec2 in main (argc=4, argv=0xbfca39e4) at > RicochetAppMain.cpp:95 You really did call JvCreateJavaVM() first, didn't you? > Is there I'm not doing when calling JvCreateJavaVM? I called this > initially with an empty JvVMInitArgs argument and the program > aborted so I added the -D option for the .jar file. This seems > redundant to me but I wasn't sure what else to try. This argument > is what I pass when I'm using the invocation API. > > I appreciate your time but don't want to waste it. Please point me to > documentation, examples, or tutorials if you don't have time to keep > helping me. You have the documentation. :-) When asking a question like this, you are far more likely to get an answer if you submit a runnable test case. That way I can see what's going wrong. Right now, I have no idea. Andrew. -- Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, UK Registered in England and Wales No. 3798903
