Date: Thu, 26 Feb 2009 12:54:20 -0800 From: Brian Gardner <brian@experts-exchange.com> To: Swamy Venkataramanappa <Swamy.Venkataramanappa@Sun.COM> Cc: bsd-port-dev@openjdk.java.net, freebsd-java@freebsd.org Subject: Re: gdb and java Message-ID: <49A7017C.3020302@experts-exchange.com> In-Reply-To: <49A6FD5C.3070107@sun.com> References: <49A6F84E.1080504@experts-exchange.com> <49A6FD5C.3070107@sun.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Thanks Swamy, Same thing happens using java directly. Swamy Venkataramanappa wrote: > > jmap is actually a java program. jmap executable is simple launcher > just like a java launcher. > It launches java program and runs JMap.class from sa-jdi.jar or runs > attach on demand > code and attaches to the running jvm. SA based jmap can be run like this > > java -classpath <jdkhome>/sa-jdi.jar sun.jvm.hotspot.tools.JMap > -finalizerinfo <pid> > > -Swamy > > Brian Gardner wrote: >> I've had success in debugging java using jdb, however this doesn't >> seem to support native debugging. I'd like to use gdb but this >> doesn't work with (the error is bellow). Currently I'm printing to >> stderr from native code but this is less than ideal and time >> consuming, any ideas? >> >> # gdb jmap >> (gdb) run -finalizerinfo 118 >> Starting program: >> /usr/home/brian/openjdk6/freshv2.2/bsd-port6.modified/build/bsd-amd64/j2sdk-image/bin/jmap >> -finalizerinfo 118 >> (no debugging symbols found)...(no debugging symbols found)...[New >> LWP 104363] >> (no debugging symbols found)...(no debugging symbols found)...[New >> Thread 0x800b01120 (LWP 104363)] >> [New LWP 104363] >> >> Program received signal SIGTRAP, Trace/breakpoint trap. >> [Switching to LWP 104363] >> Cannot remove breakpoints because program is no longer writable. >> It might be running in another process. >> Further execution is probably impossible. >> 0x000000080050d360 in ?? () from /libexec/ld-elf.so.1 >> (gdb) >> >> >> >> > >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?49A7017C.3020302>