[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.4-199-g7b9215b

[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.4-199-g7b9215b

[jistone]

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- Log -----------------------------------------------------------------
commit 7b9215b214f6353d4c6169b5541fbd8190eff64e
Author: Josh Stone <jistone@redhat.com>
Date:   Thu Mar 24 11:18:45 2011 -0700

    Find SDT semaphores even in RWX mappings
    
    Some S390 environments don't have noexec mappings for data sections, so
    the .probes section with SDT semaphores is mapped RWX rather than RW-.
    Our logic which checks vm flags needs to accommodate this.
    
    * runtime/uprobes-common.c (stap_uprobe_mmap_found): Deal with mappings
      that are both executable and writable, so semaphores can be found.

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

Summary of changes:
 runtime/uprobes-common.c |   53 ++++++++++++++++++++++++++++++++++-----------
 1 files changed, 40 insertions(+), 13 deletions(-)


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systemtap: system-wide probe/trace tool