Hi Jeremy, IcedTea OpenJDK, which is shipped from Linux Distros (e.g. Fedora) contains jstack.stp .
jstack.stp is SystemTap tapset - it can parse Java and native frame from thread stack. You may use its implementation on GDB. Thanks, Yasumasa IcedTea Committer On 2015/02/12 7:27, Jeremy Manson wrote: > Hey folks, > > I think I've mentioned to some of the people on this list that we (and by > we, I mean Sasha Smundak) have been working on interoperability between gdb > and Java. Basically, what we have now allows us to get a backtrace in gdb > that includes Java frames with parameter values (no local variables yet). > > Needless to say, this has been terribly, terribly helpful in our JVM and > JNI debugging. > > Support for this feature is basically two parts: > > First, gdb needed to be extended to support the ability to plug in a frame > unwinder. The process of submitting this to gdb (which has been ongoing > for quite a while) is finally starting to make reasonable progress. > > Next, we need a plugin for OpenJDK. We have a plugin written that calls > out to the serviceability agent. (It's written in Python, per gdb's > requirements). > > Pending the gdb support being finalized, we'd love to contribute the plugin > to OpenJDK. What should we do make that happen? Write a JEP and submit > it to this list? Technically, neither of us are committers (which you need > to be to submit a JEP), but I imagine we can work around that. > > Here's the gdb patch, for anyone interested: > > https://sourceware.org/ml/gdb-patches/2014-12/msg00408.html > > Thanks! > > Jeremy >
