From: "nobu (Nobuyoshi Nakada)" <nobu@...>
Date: 2013-11-27T11:15:46+09:00
Subject: [ruby-core:58618] [ruby-trunk - Feature #9162][Assigned] Read/Write	operations in Tracepoint


Issue #9162 has been updated by nobu (Nobuyoshi Nakada).

Category set to core
Status changed from Open to Assigned
Assignee set to ko1 (Koichi Sasada)


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Feature #9162: Read/Write operations in Tracepoint
https://bugs.ruby-lang.org/issues/9162#change-43187

Author: davidann (David Weiser)
Status: Assigned
Priority: Normal
Assignee: ko1 (Koichi Sasada)
Category: core
Target version: 


Is there a way to access when variables are read/assigned in Tracepoint?  Specifically, I'm interested in creating a tool which does dynamic, threading analysis of Ruby code to find atomicity violations, dead-locks and race conditions.  However, to do so would require the ability to know when a variable is written to, or read from, and the thread in which the operation happened.

I looked in vm_trace.c and did not find the events that would be needed to do this type of analysis.

Can I use Tracepoint to get this information?  Or should I use some other approach?


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