On Fri, 12 Aug 2005 14:01:59 -0600, Orion Poplawski wrote: > I'm working on packaging plplot for Fedora Extras. It has a Java > interface that appears to work fine on x86 but not on ppc. Basically > the Java stuff is just a JNI wrapper to the C library. > > Is there any way to run the java byte-code/JVM under a debugger? My > first attempt to debug was to compile the program to native code and run > under gdb as mentioned on the gcj website, but the native code appears > to run fine. It's tricky - but possible - to debug interpreted bytecode. JDWP protocol support is being worked on, but it's not ready yet. Is plplot multithreaded? I've just discovered a thread-safety bug in the gij interpreter which has lain unfixed for several years: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23367 I'm told that this bug only affects the interpreter. There are also a couple of other threading bugs that I know of (one of which is not so easy to reproduce on x86 but easy to reproduce on x86-64, FWIW). But both of those are not specific to interpreted code. If you want to join the #fedora-java IRC channel on irc.freenode.net, I can try and help you debug it over IRC. What kind of problems are you experiencing on ppc, when running plplot as interpreted? -- Robin
