Bug 380350 - RFE: --trace-fork-join in helgrind mode
Summary: RFE: --trace-fork-join in helgrind mode
Status: REPORTED
Alias: None
Product: valgrind
Classification: Developer tools
Component: helgrind (show other bugs)
Version: unspecified
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: Julian Seward
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-05-30 09:04 UTC by Mark Wielaard
Modified: 2017-05-30 09:04 UTC (History)
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Description Mark Wielaard 2017-05-30 09:04:42 UTC 
This was reported in the fedora bug tracker:
https://bugzilla.redhat.com/show_bug.cgi?id=1455657

When using helgrind, it would be nice to be able to correlate thread lifecycle
events with a program's logs & valgrind reports.  drd already has a
--trace-fork-join=yes option; please consider activating same for
--tool=helgrind.

This looks simple enough to implement in the same way drd does.
helgrind already has hooks for track_pre_thread_ll_create and track_pre_thread_first_insn. helgrind also intercepts pthreadZujoin (pthread_join) and generates a POST_THREAD_JOIN client request which is handled in evh__HG_PTHREAD_JOIN_POST. Which seem to be all the places where the trace_msgs need to be added.
In the track_pre_thread_ll_create thread_post_join pre_thread_create post_thread_create