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[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.1-120-g3897525


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- Log -----------------------------------------------------------------
commit 38975255091d0c6bc33ae3c6907bb7886b70598d
Author: David Smith <dsmith@redhat.com>
Date:   Thu Feb 25 16:29:50 2010 -0600

    Fixed pr 10690 by adding '.maxsize(NNN)' procfs read probe parameter.
    
    * tapset-procfs.cxx (procfs_derived_probe::procfs_derived_probe): Added
      'maxsize_val' initialization.
      (procfs_derived_probe::join_group): Updated '_stp_procfs_data'
      definition and added STP_PROCFS_BUFSIZE.
      (procfs_derived_probe_group::emit_module_decls): Emits structure to
      contain procfs file buffers.  Initializes '.bufsize' structure member.
      (procfs_var_expanding_visitor::visit_target_symbol): Uses 'bufsize' for
      maximum buffer size instead of using MAXSTRINGLEN.
      (procfs_builder::build): Looks for '.maxsize(NNN)' parameter.
      (register_tapset_procfs): Added '.maxsize(NNN)' parameter binding.
    * runtime/procfs-probes.c (stap_procfs_probe): Converted 'buffer' to a
      pointer and added 'bufsize' member.
    * testsuite/semko/procfs13.stp: New testcase.
    * testsuite/semko/procfs14.stp: Ditto.
    * testsuite/semko/procfs15.stp: Ditto.
    * testsuite/systemtap.base/procfs_maxsize.exp: Ditto.
    * testsuite/systemtap.base/procfs.exp: Minor fix.
    * stapprobes.3stap.in: Added '.maxsize(NNN)' documentation.
    * stap.1.in: Added STP_PROCFS_BUFSIZE documentation.

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

Summary of changes:
 runtime/procfs-probes.c                     |    9 +-
 stap.1.in                                   |    9 +-
 stapprobes.3stap.in                         |   30 +++-
 tapset-procfs.cxx                           |  117 +++++++++--
 testsuite/semko/procfs13.stp                |    4 +
 testsuite/semko/procfs14.stp                |    4 +
 testsuite/semko/procfs15.stp                |    4 +
 testsuite/systemtap.base/procfs.exp         |    2 +-
 testsuite/systemtap.base/procfs_maxsize.exp |  288 +++++++++++++++++++++++++++
 9 files changed, 439 insertions(+), 28 deletions(-)
 create mode 100755 testsuite/semko/procfs13.stp
 create mode 100755 testsuite/semko/procfs14.stp
 create mode 100755 testsuite/semko/procfs15.stp
 create mode 100644 testsuite/systemtap.base/procfs_maxsize.exp


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