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From: dsmith@sourceware.org
To: systemtap-cvs@sourceware.org
Subject: [SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.7-188-g36de3b6
Date: Fri, 27 Apr 2012 20:44:00 -0000	[thread overview]
Message-ID: <20120427204411.4538.qmail@sourceware.org> (raw)

This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "systemtap: system-wide probe/trace tool".

The branch, master has been updated
       via  36de3b61c7ae68f08d72816f91e5ecddcda078fd (commit)
      from  f8c056b347ee6a964df332cd0e3b151c2a312d12 (commit)

Those revisions listed above that are new to this repository have
not appeared on any other notification email; so we list those
revisions in full, below.

- Log -----------------------------------------------------------------
commit 36de3b61c7ae68f08d72816f91e5ecddcda078fd
Author: David Smith <dsmith@redhat.com>
Date:   Fri Apr 27 15:43:16 2012 -0500

    Use new task_work kernel feature to truly stop tasks.
    
    * buildrun.cxx (compile_pass): Add STAPCONF_TASK_WORK_ADD_EXPORTED autoconf.
    * runtime/autoconf-utrace-via-ftrace.c (__autoconf_func): Makes sure
      <linux/task_work.h> is present and works.
    * runtime/autoconf-utrace-via-tracepoints.c (__autoconf_func): Ditto.
    * runtime/runtime.h: Added export kludge variables for task_work_add() and
      task_work_cancel().
    * runtime/stp_utrace.c (utrace_init): If the task_work_* functions aren't
      exported, use kallsyms_lookup_name() to find them.
      (utrace_cleanup): Cancel work function if necessary.
      (utrace_task_alloc): Initialize task work structure.
      (utrace_free): Cancel work function if necessary.
      (utrace_do_stop): Use task_work_add() functionality to replace
      set_notify_resume().
      (utrace_stop): Ditto.
      (utrace_control): Ditto.
      (finish_report): Ditto.
      (utrace_resume): Updated to work as task worker function.
    * runtime/task_finder2.c (__stp_task_worker): New function.
      (__stp_utrace_task_finder_target_quiesce): If we can't sleep, use
      task_work_add() to truly stop the task.
    * runtime/uprobes-inode.c (stapiu_change_plus): Check build-ids.

-----------------------------------------------------------------------

Summary of changes:
 buildrun.cxx                              |    3 +
 runtime/autoconf-utrace-via-ftrace.c      |    5 +
 runtime/autoconf-utrace-via-tracepoints.c |    6 ++
 runtime/runtime.h                         |    6 ++
 runtime/stp_utrace.c                      |  123 +++++++++++++++++++++++++----
 runtime/task_finder2.c                    |   71 +++++++++++++++--
 runtime/uprobes-inode.c                   |   11 +++-
 7 files changed, 201 insertions(+), 24 deletions(-)


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systemtap: system-wide probe/trace tool


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