Adding in the Serviceability team since JVM/TI belongs there.
Dan
On 12/12/17 7:46 AM, Vladimir Ivanov wrote:
Thanks for the report, Amir!
Unfortunately, I can't access the bug you filed.
Can you, please, share the test case and instructions how to reproduce
the problem?
Also, what Java version & platform do you observe the bug on?
I briefly looked into template interpreter code on x86 and it does
have relevant code to post JVMTI events in fast accessors.
Best regards,
Vladimir Ivanov
On 12/12/17 11:12 AM, Amir Rapson wrote:
Hi Daniel, Coleen and Vladimir,
I tracked your email addresses from some mailing lists and hopefully
one of you is a relevant person for my problem.
I also filed a bug request (ID 9051849) but since I don’t have an
option to add information I decided to email you.
The problem I’m seeing is that JMTI does not receive field access
events (and probably field modification events) when /fast_getfield/
is used instead of /get_field/.
I verified this by disabling all the
/patch_bytecode(Bytecodes::_fast_?getfield, bc, rbx)/ in
/TemplateTable::getfield_or_static()/ and made sure that JVMTI
receives all the correct events.
I have the agent code and a short java program that can reproduce the
problem and would be happy to assist in fixing and or debugging this
issue.
I would appreciate any feedback.
Best regards,
Amir
Amir Rapson | Founder & VP Eng @ *vFunction* | 7 HaPelech St.
Tel-Aviv | +972-522650968
