[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.3-174-gc87ae2c

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- Log -----------------------------------------------------------------
commit c87ae2c195e2c0e8d22cdc2c3f767834d605ed90
Author: Josh Stone <jistone@redhat.com>
Date:   Fri Oct 1 16:41:19 2010 -0700

    Replace kretprobe->entry_ph with a full stap_probe
    
    This ensures that pp, pn, and STP_TIMING can be kept distinct for entry
    handlers vs. their normal kretprobe handlers.
    
    * tapsets.cxx (dwarf_derived_probe_group::emit_module_decls): Replace
      entry_ph with entry_probe, pointing to the global stap_probes[], and
      update all references.

commit 26e6367359476da839ab1ed7abcc4b52925da649
Author: Josh Stone <jistone@redhat.com>
Date:   Fri Oct 1 15:47:45 2010 -0700

    Centralize stap_probe, and make STP_TIMING data-driven
    
    With the move to per-probe_point STP_TIMING statistics, the design which
    wrote a separate code block for every Stat suddenly ran into scalability
    issues.  We should instead be using a data-driven loop for this.
    
    So, the scattered stap_probe structs are now pulled together in one
    global, stap_probes[].  This contains the usual suspects: ph, pp, and pn;
    it also keeps the extras that STP_TIMING needs: a Stat, the script
    location, and the derivation record.
    
    * translate.cxx (translate_pass): Add the STP_TIMING data to stap_probe,
      and output the global stap_probes[] with everything.
      (c_unparser::emit_module_init): Iterate the timing init at runtime.
      (c_unparser::emit_module_exit): Iterate the timing output at runtime.
    * tapsets.cxx (common_probe_init): Just return the right global stap_probe*
    * tapset*.cxx, runtime/*: Make pointers of all stap_probe's, and make
      the s/\./->/ change where needed too.
    * elaborate.cxx (derived_probe::derived_locations): New, gives a string
      reporting the derivation steps which reached this probe point.

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

Summary of changes:
 elaborate.cxx            |   14 +++++-
 elaborate.h              |    5 ++-
 runtime/perf.h           |    2 +-
 runtime/procfs-probes.c  |    8 ++--
 runtime/uprobes-common.c |    8 ++--
 runtime/uprobes-common.h |    2 +-
 tapset-been.cxx          |    4 +-
 tapset-itrace.cxx        |    4 +-
 tapset-mark.cxx          |    6 +-
 tapset-perfmon.cxx       |    4 +-
 tapset-procfs.cxx        |   10 ++--
 tapset-timers.cxx        |   25 +++++-----
 tapset-utrace.cxx        |    8 ++--
 tapsets.cxx              |   89 ++++++++++++++++------------------
 translate.cxx            |  122 ++++++++++++++++++---------------------------
 15 files changed, 149 insertions(+), 162 deletions(-)


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