linux-yocto-3.0/yocto/standard/base: re-enable utrace

This patchset re-enables utrace. Tested on qemuppc, qemux86, qemux86-64, qemuarm (where it doesn't work, as expected - utrace doesn't currently support arm), and sugarbay.

These patches are taken from the utrace-3.0 branch of the utrace git repo at
git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc.git.

Please pull into linux-yocto-3.0/meta.

The following changes are available in the git repository at:

git://git.yoctoproject.org/linux-yocto-2.6.37-contrib.git utrace-yocto/standard/base
http://git.yoctoproject.org/cgit/cgit.cgi/linux-yocto-2.6.37-contrib/log/?h=utrace-yocto/standard/base

Oleg Nesterov (2):
ptrace: temporary revert the recent ptrace/jobctl rework
tracehooks: preparation for ptrace-utrace

Roland McGrath (1):
utrace core

  Documentation/DocBook/Makefile    |    2 +-
  Documentation/DocBook/utrace.tmpl |  589 +++++++++
  fs/exec.c                         |    1 -
  fs/proc/array.c                   |    3 +
  include/linux/ptrace.h            |    2 +
  include/linux/sched.h             |   23 +-
  include/linux/tracehook.h         |  122 ++-
  include/linux/utrace.h            |  692 +++++++++++
  init/Kconfig                      |    9 +
  kernel/Makefile                   |    1 +
  kernel/exit.c                     |   77 +-
  kernel/fork.c                     |    3 +
  kernel/ptrace.c                   |  118 +--
  kernel/signal.c                   |  341 ++----
  kernel/utrace.c                   | 2440 +++++++++++++++++++++++++++++++++++++
  15 files changed, 3986 insertions(+), 437 deletions(-)

create mode 100644 Documentation/DocBook/utrace.tmpl create mode 100644 include/linux/utrace.h create mode 100644 kernel/utrace.c

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