[SCM] systemtap: system-wide probe/trace tool branch, master, updated. rhel52-ga-338-ga90e7a9

[SCM] systemtap: system-wide probe/trace tool branch, master, updated. rhel52-ga-338-ga90e7a9

[dsmith]

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       via  37e24fbe9a36eee5cc16f689b55c2e90159d5f2f (commit)
       via  cfac4b1fc487712e0ce5b11630b74bdaea5f8966 (commit)
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- Log -----------------------------------------------------------------
commit a90e7a969b9eabd434d206068155c3e75934f00f
Author: David Smith <dsmith@redhat.com>
Date:   Wed May 28 12:00:08 2008 -0500

    Removed debug print.
    2008-05-28  David Smith  <dsmith@redhat.com>
    
            * tapsets.cxx (utrace_derived_probe_group::emit_module_decls):
            Removed debug print.

commit 37e24fbe9a36eee5cc16f689b55c2e90159d5f2f
Author: David Smith <dsmith@redhat.com>
Date:   Wed May 28 11:56:06 2008 -0500

    Handle bug #6500 fallout.
    2008-05-28  David Smith  <dsmith@redhat.com>
    
            * tapsets.cxx (utrace_derived_probe_group::emit_probe_decl):
            Instead of adding clone handlers, just call the probes directly.
            (utrace_derived_probe_group::emit_module_decls): For syscall
            probes, on exec detach the parent's utrace engine from the child.
    
    2008-05-28  David Smith  <dsmith@redhat.com>
    
            * task_finder.c (__stp_utrace_attach_match_filename): Added
            register_p parameter, which is passed on to the callback.  Only
            adds death notification if register_p is 1.  If register_p is 0,
            removes death notification.
            (__stp_utrace_attach_match_tsk): Moved code from
            __stp_utrace_task_finder_report_clone that handles the details of
            grabbing a task's path.
            (__stp_utrace_task_finder_report_clone): Calls new
            __stp_utrace_attach_match_tsk().
            (__stp_utrace_task_finder_report_exec): Notifies upper layer that
            it might need to detach from newly exec'ed process.`

commit cfac4b1fc487712e0ce5b11630b74bdaea5f8966
Author: David Smith <dsmith@redhat.com>
Date:   Wed May 21 12:59:56 2008 -0500

    Minor improvement to multi-threaded support.
    2008-05-21  David Smith  <dsmith@redhat.com>
    
            * tapsets.cxx (utrace_derived_probe_group::emit_module_decls):
            Added new 'event_flag' parameter to task_finder callback.  Only
            calls probe handlers if we received the correct event.
    
    2008-05-21  David Smith  <dsmith@redhat.com>
    
            * task_finder.c (__stp_utrace_attach_match_filename): Added
            event_flag parameter of event to pass to callback.
            (__stp_utrace_task_finder_target_death): Ditto.
            (__stp_utrace_task_finder_report_clone): Calls
            __stp_utrace_attach_match_filename() with new argument.
            (__stp_utrace_task_finder_report_exec): Ditto.
            (stap_start_task_finder): Calls callback with an invalid
            event_flag since this callback call isn't related to an event.

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

Summary of changes:
 ChangeLog             |   18 ++++++-
 runtime/ChangeLog     |   25 ++++++++++
 runtime/task_finder.c |  129 ++++++++++++++++++++++++++++++++++++-------------
 tapsets.cxx           |   88 ++++++++++++++++++++-------------
 4 files changed, 191 insertions(+), 69 deletions(-)


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systemtap: system-wide probe/trace tool