[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.3-288-g62f52bb

[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.3-288-g62f52bb

[jistone]

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- Log -----------------------------------------------------------------
commit 62f52bb0a5e157b04ab32839471ebbc36b724c3b
Author: Josh Stone <jistone@redhat.com>
Date:   Thu Nov 11 13:11:50 2010 -0800

    PR12164: Emit kprobes-sdt goo only when needed
    
    This stuff is only used for apps compiled with EXPERIMENTAL_KPROBE_SDT,
    so we don't need it most of the time.
    
    * runtime/kprobes-common.c (stap_kprobe_process_found,
      stap_kprobe_mmap_found): Only create #ifdef KPROBES_TASK_FINDER.
    * tapsets.cxx (dwarf_derived_probe::join_group): Only enable_task_finder
      in the session if a semaphore is present.
      (dwarf_derived_probe_group::enroll): Remember if any has_semaphores.
      (dwarf_derived_probe_group::emit_module_decls): Predicate sdt and
      task_finder code on has_semaphores.
      (dwarf_derived_probe_group::emit_module_init): Ditto.
      (dwarf_derived_probe_group::emit_module_exit): Ditto.

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

Summary of changes:
 runtime/kprobes-common.c |    4 +++
 tapsets.cxx              |   52 ++++++++++++++++++++++++---------------------
 2 files changed, 32 insertions(+), 24 deletions(-)


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systemtap: system-wide probe/trace tool