[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.6-311-g2ec6b38

[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.6-311-g2ec6b38

[dsmith]

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- Log -----------------------------------------------------------------
commit 2ec6b38c60450db5d94323284d53978ea9c2bf1f
Author: David Smith <dsmith@redhat.com>
Date:   Thu Oct 13 16:24:43 2011 -0500

    (More PR13289 fixes) Added better %m/%M error handling.
    
    * runtime/print.c (_stp_unreserve_bytes): New function.
    * runtime/print.h: Added _stp_unreserve_bytes() declaration.
    * runtime/vsprintf.c (_stp_vsprint_memory): Only change the input pointer
      to "<NULL>" when we're formatting a string (%s), not when we're
      formatting raw memory (%m/%M).  Also, return NULL on errors.
      (_stp_vsprint_memory_size): Only change the input pointer to "<NULL>"
      when we're formatting a string (%s), not when we're formatting raw
      memory (%m/%M).
      (_stp_vsnprintf): If _stp_vsprint_memory() returns NULL, unreserve bytes
      in the print buffer, when necessary.
    * translate.cxx (c_unparser::emit_compiled_printfs): If
      _stp_vsprint_memory() returns NULL, unreserve bytes in the print buffer,
      when necessary.  Also improve error message if _stp_vsprint_memory()
      fails by setting 'last_stmt'.
    * testsuite/systemtap.stress/conversions.stp: Added tests for '%M' and for
      using sprintf() with '%m' and '%M'.
    * testsuite/systemtap.stress/conversions.exp: Updated error count.

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

Summary of changes:
 runtime/print.c                            |   10 ++++++++++
 runtime/print.h                            |    1 +
 runtime/vsprintf.c                         |   25 +++++++++++++++----------
 testsuite/systemtap.stress/conversions.exp |    2 +-
 testsuite/systemtap.stress/conversions.stp |    3 +++
 translate.cxx                              |   11 +++++++++--
 6 files changed, 39 insertions(+), 13 deletions(-)


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systemtap: system-wide probe/trace tool