[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.8-247-ge357582

[dsmith at sourceware dot org]

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- Log -----------------------------------------------------------------
commit e3575828e07be265fd6628a2c58103bf2fdf7535
Author: David Smith <dsmith@redhat.com>
Date:   Fri Sep 21 15:13:28 2012 -0500

    (PR14571 partial fix) For dyninst, use TLS for map and stat data.
    
    * runtime/dyninst/tls_data.c: New file.
    * runtime/stat.c (struct _Stat): Add a tls_data_container_t structure.
      (_stp_stat_tls_object_init): New function.
      (_stp_stat_tls_object_free): Ditto.
      (_stp_stat_init): Instead of directly allocating percpu data, for
      dyninst set up tls data to be created when accessed by calling
      _stp_tls_data_container_init().
      (_stp_stat_del): For dyninst, call _stp_tls_data_container_cleanup() to
      remove all the tls data.
      (_stp_stat_add): For dyninst, get the proper tls stat object.
      (_stp_stat_get_cpu): Deleted unused function.
      (_stp_stat_get): For dyninst, get the proper tls stat objects.
      (_stp_stat_clear): For dyninst, clear the stat in each thread's tls data.
    * runtime/stat.h (struct stat_data): Add a tls_data_object_t structure.
    * runtime/map.c (_stp_map_tls_object_init): New function.
      (_stp_map_tls_object_free): Ditto.
      (_stp_pmap_new): Instead of directly allocating percpu data, for dyninst
      set up tls data to be created when accessed by calling
      _stp_tls_data_container_init().
      (_stp_pmap_clear): For dyninst, clear the map in each thread's tls data.
      (_stp_pmap_del): For dyninst, call _stp_tls_data_container_cleanup() to
      remove all the tls data.
      (_stp_pmap_agg): Add dyninst support.
    * runtime/map.h (struct map_root): Add a tls_data_object_t structure.
      (struct pmap): Add a tls_data_container_t structure.
    * runtime/map-stat.c (_stp_hstat_tls_object_init): New function.
      (_stp_pmap_new_hstat_linear): For dyninst, override the standard tls
      data object init function with _stp_hstat_tls_object_init(), which knows
      how to handle hstats.
      (_stp_pmap_new_hstat_log): Ditto.
    * runtime/pmap-gen.c (_stp_pmap_tls_object_init): New function.
      (_stp_pmap_new): For dyninst, override the standard tls
      data object init function with _stp_pmap_tls_object_init(), which knows
      how to handle pmaps.
      (_stp_pmap_set): For dyninst, get the proper tls pmap object.
      (_stp_pmap_add): Ditto.
      (_stp_pmap_get_cpu): Ditto.
      (_stp_pmap_get): Ditto.
      (_stp_pmap_del): Ditto.
    * runtime/dyninst/linux_defs.h: Added container_of(), list_entry(),
      list_for_each_entry(), and list_for_each_entry_safe().

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

Summary of changes:
 runtime/dyninst/linux_defs.h |   19 +++++
 runtime/dyninst/tls_data.c   |  178 ++++++++++++++++++++++++++++++++++++++++++
 runtime/map-stat.c           |   42 ++++++++++-
 runtime/map.c                |  145 ++++++++++++++++++++++++++++++----
 runtime/map.h                |   18 ++++-
 runtime/pmap-gen.c           |   82 +++++++++++++++++++-
 runtime/stat.c               |  124 ++++++++++++++++++++++++-----
 runtime/stat.h               |   15 ++++-
 8 files changed, 580 insertions(+), 43 deletions(-)
 create mode 100644 runtime/dyninst/tls_data.c


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systemtap: system-wide probe/trace tool