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[SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.4-67-gb63fab8

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- Log -----------------------------------------------------------------
commit b63fab8739c5c6d6a83c5225682fb64cebd7b208
Author: Josh Stone <>
Date:   Thu Feb 10 16:43:55 2011 -0800

    Use posix_spawn_file_actions for stap_system_read
    The file actions can handle the dup2 necessary to hook a pipe onto the
    child's stdout.  It could do the necessary closing too, but we'll just
    use FD_CLOEXEC for that.
    * util.cxx (stap_spawn): Take file_actions for the posix_spawn.
      (pipe_child_fd): New, open a pipe and set the dup2 action for it.
      (stap_system_read): Let stap_spawn and pipe_child_fd do the hard part.


Summary of changes:
 util.cxx |   82 +++++++++++++++++++++++++++++++++++++------------------------
 1 files changed, 50 insertions(+), 32 deletions(-)

systemtap: system-wide probe/trace tool

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