[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.7-133-gc0456b6

[dsmith at sourceware dot org]

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- Log -----------------------------------------------------------------
commit c0456b6fda16307070e0896d3cca86f523214a5e
Author: David Smith <dsmith@redhat.com>
Date:   Fri Mar 23 15:52:01 2012 -0500

    Improve build-id checking when the task we're interested in isn't 'current'.
    
    * translate.cxx (emit_module_init): Moved include files to
      runtime/runtime.h.
    * runtime/runtime.h: Moved includes here from translate.cxx.  Rearranged
      order a bit, to allow use of __access_process_vm() earlier.
    * runtime/sym.c (_stp_build_id_check): Instead of passing in a flag to
      indicate build-id checking a user module, instead pass a task_struct
      pointer in.  If the task_struct pointer isn't 'current', use
      __access_process_vm() to read data.
      (_stp_module_check): Update _stp_build_id_check() call.
      (_stp_kmodule_check): Ditto.
      (_stp_usermodule_check): Ditto.
    * runtime/vma.c (_stp_vma_match_vdso): If the task we're trying to match
      isn't 'current', use __access_process_vm() to read data.

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

Summary of changes:
 runtime/runtime.h |   38 +++++++++++++++++++++++++-------------
 runtime/sym.c     |   52 ++++++++++++++++++++++++++++++----------------------
 runtime/vma.c     |   12 ++++++++++--
 translate.cxx     |   17 -----------------
 4 files changed, 65 insertions(+), 54 deletions(-)


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systemtap: system-wide probe/trace tool