The SDT support is maintained by the IcedTea folks. Perhaps asking on their email list [1] would get you closer, or on the hotspot-dev list.
/Staffan [1] http://mail.openjdk.java.net/mailman/listinfo/distro-pkg-dev > On 12 maj 2015, at 10:21, Mahesh Pujari <pujarimahesh_ku...@yahoo.com> wrote: > > I think I have mixed up things, like thinking SDT and dtrace4linux as same, > but there are not as pointed out by Staffan. > > So first I build jdk9 with not having SDT headers i.e. not having > systemtap-dev. Build was success as expected. > > Next I did a build having SDT headers in path (i.e. I having installed > systemtap and systemtap-dev), as pointed out by David, dtrace will be enabled > by default, it seems its working as expected, i.e. dtrace was enabled but the > build failed with below error. > > In file included from > /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/utilities/dtrace.hpp:49:0, > from > /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/utilities/hashtable.inline.hpp:31, > from > /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/classfile/systemDictionary.hpp:35, > from > /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/ci/ciEnv.hpp:30, > from > /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/ci/ciUtilities.hpp:28, > from > /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/ci/ciNullObject.hpp:30, > from > /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/ci/ciConstant.hpp:29, > from > /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/ci/ciArray.hpp:29, > from > /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/precompiled/precompiled.hpp:33: > ../generated/dtracefiles/hotspot.h:14:5: error: "_DTRACE_VERSION" is not > defined [-Werror=undef] > > To fix this, I re-configured with > "--with-extra-cflags=-D_DTRACE_VERSION=true" and did "make all LOG=info", now > compilation are success but linking failed (lot of them), few of the logs as > below > > Compiling /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/runtime/vm_version.cpp > Linking vm... > classLoadingService.o: In function > `ClassLoadingService::notify_class_unloaded(InstanceKlass*)': > /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/services/classLoadingService.cpp:119: > undefined reference to `__dtrace_hotspot___class__unloaded' > classLoadingService.o: In function > `ClassLoadingService::notify_class_loaded(InstanceKlass*, bool)': > /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/services/classLoadingService.cpp:144: > undefined reference to `__dtrace_hotspot___class__loaded' > compileBroker.o: In function > `CompileBroker::invoke_compiler_on_method(CompileTask*)': > /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/compiler/compileBroker.cpp:1927: > undefined reference to `__dtrace_hotspot___method__compile__begin' > > > Do I need to install some other libraries, what am I missing here. > > thanks and regards, > Mahesh Pujari > > > > On Monday, May 11, 2015 5:08 PM, Staffan Larsen <staffan.lar...@oracle.com> > wrote: > > > Note that SDT and dtrace4linux are different things. As far as I know, no one > has tried dtrace4linux with Hotspot so you are in uncharted territories. SDT > should work (if installed). Oracle Linux also has an implementation of Dtrace > that I think is different from dtrace4linux. This is also untested. > > /Staffan > > > > > On 11 maj 2015, at 13:21, David Holmes <david.hol...@oracle.com > > <mailto:david.hol...@oracle.com>> wrote: > > > > On 11/05/2015 8:51 PM, Mahesh Pujari wrote: > >> Thanks for replying back Erik. > >> I ran as you stated i.e. using "make DTRACE_ENABLED=true" but then I > >> realized that the configure that I was running would do the same i.e. by > >> having CFLAGS=-DDTRACE_ENABLED=1. > > > > No it isn't the same. The linux/makefiles/dtrace.make looks for > > DTRACE_ENABLED and will define additional targets if it is set, as well as > > setting -DDTRACE_ENABLED. If you just set the define then you miss other > > things. > > > > But that aside you don't set DTRACE_ENABLED either. dtrace will be enabled > > if the SDT header file is found. If you just do a build without trying to > > force dtrace on what does the log show? > > > > David > > ----- > > > >> When I make (using your approach and passing enable in configure), I end > >> up with lots and lots of "undefined reference to" errors during make, > >> seems I am missing something, below are some error from build.logs. > >> classLoadingService.o: In function > >> `ClassLoadingService::notify_class_unloaded(InstanceKlass*)': > >> /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/services/classLoadingService.cpp:119: > >> undefined reference to `__dtrace_hotspot___class__unloaded' > >> classLoadingService.o: In function > >> `ClassLoadingService::notify_class_loaded(InstanceKlass*, bool)': > >> /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/services/classLoadingService.cpp:144: > >> undefined reference to `__dtrace_hotspot___class__loaded' > >> compileBroker.o: In function > >> `CompileBroker::invoke_compiler_on_method(CompileTask*)': > >> /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/compiler/compileBroker.cpp:1927: > >> undefined reference to `__dtrace_hotspot___method__compile__begin' > >> /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/compiler/compileBroker.cpp:2028: > >> undefined reference to `__dtrace_hotspot___method__compile__end' > >> > >> thanks and regards,Mahesh Pujari > >> > >> > >> > >> On Monday, May 11, 2015 3:53 PM, Erik Joelsson > >> <erik.joels...@oracle.com <mailto:erik.joels...@oracle.com>> wrote: > >> > >> > >> Hello, > >> > >> I don't have any experience building with dtrace support, but the > >> Hotspot makefiles seem to imply that it can be achieved by running: > >> > >> make DTRACE_ENABLED=true > >> > >> That variable will trigger the appropriate preprocessor flags to be > >> added at least. See hotspot/make/linux/makefiles/dtrace.make. > >> > >> The jdk libraries do not support dtrace AFAIK. > >> > >> /Erik > >> > >> On 2015-05-11 11:47, Mahesh Pujari wrote: > >>> Hi all, > >>> I am trying make OpenJdk 9 with dtrace enabled, on my Ubuntu machine > >>> (installed with https://github.com/dtrace4linux/linux > >>> <https://github.com/dtrace4linux/linux>), with configuration as below > >>> (and I am noob). > >>> ./configure --enable-option-checking=fatal --with-debug-level=slowdebug > >>> --with-target-bits=64 --disable-zip-debug-info > >>> --with-boot-jdk=/mnt/ubuntu/setup/jdk1.8.0 CFLAGS=-DDTRACE_ENABLED=1 > >>> --with-extra-cflags=-D_DTRACE_VERSION=1 > >>> > >>> Below is my system info (using uname -a)Linux PHP0045 3.13.0-45-generic > >>> #74-Ubuntu SMP Tue Jan 13 19:36:28 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux > >>> > >>> When I do "make all", I end up in error as below... > >>> ... > >>> vmThread.o: In function `VMOperationQueue::add(VM_Operation*)': > >>> /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/runtime/vmThread.cpp:156: > >>> undefined reference to `__dtrace_hotspot___vmops__request' > >>> vmThread.o: In function `VMThread::evaluate_operation(VM_Operation*)': > >>> /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/runtime/vmThread.cpp:354: > >>> undefined reference to `__dtrace_hotspot___vmops__begin' > >>> /mnt/ubuntu/dev/jdk9/hotspot/src/share/vm/runtime/vmThread.cpp:374: > >>> undefined reference to `__dtrace_hotspot___vmops__end'...... > >>> > >>> Can some one direct me about what I might be missing. Can we actually > >>> build dtrace with enabled on Ubuntu, if not what other way I can do > >>> tracing (may be using systemtap, any pointers please). Am I on right > >>> track? (please direct). > >>> > >>> > >>> thanks and regards,Mahesh Pujari > >> > >> > >> > >> > >> > >
