[GIT,PULL,ODPv3] running things in process mode

Since v2:
-serious rebase following clash with dba05a28 (api: init: add instance handle)
-squashing the validation changes. I am not very keen on squashing
 small isolated modifs to larger patches. don't really see the gain.
 Squashing more will put even more unrelated things together.

Since v1:
-variable declaration gathered in function 's head (Petri)
-linux prefix removed from helper's types and function names (Mike, Christophe)

Hi,

This patch series adds the ability to run tests/ exemples / perf-test
in "process mode" (i.e letting OPD threads being linux processes)
It it hence tackling ODP-171.

This is achieved in 2 main steps:

A]
The 2 pairs of helper functions:
odph_linux_pthread_create(), odph_linux_pthread_join()
and
odph_linux_process_fork_n(), odph_linux_process_wait_n()
are replaced by:
odph_linux_odpthreads_create() and odph_linux_odpthreads_join()
The latter's callers are unaware of the actual implementation of the ODP
thread (making test truly platform agnostic).
The helper functions decide at run time whether an odp thread is to be
a linux process or pthread based on the command line argument.

B] each test/example now calls a new helper function,
odph_linux_parse_options(), so that the helper can get its own arguments
out of the command line.
Currentely supported args are: --odph_proc, --odph_thread.
Defaults assumes thread. specifying both options runs in mixed mode.

The changed are first done on the shmem tests, and thereafter propagated
to other helper users.
Note that this patch series enable the option but does not affect
make check at this time: make check still calls the tests with no options
which default to thread mode.

This patch series nicely splits it two groups (you can split your review
there):
1) up to "validation: pktio: adding command line argument parsing", the new
helper functions are introduced, and used in the validation tests.
2) from "helper: adding a function to merge getopt parameters" the ability
to parse command line arguments in subset in added and applied to
the example and performance tests.

Hope this makes sence for you too!

----

The following changes since commit 577eb779447b889e6d34e7732576e474f47e7c70:

  example: packet make check tests (2016-04-26 15:47:24 +0300)

are available in the git repository at:

  https://git.linaro.org/people/christophe.milard/odp.git test_in_process_mode_v3

for you to fetch changes up to 71e38c2d49b4e4b7649ddebcb69fb680f46139cc:

  helper: removing dead code (2016-04-27 14:11:58 +0200)

----------------------------------------------------------------
Christophe Milard (36):
      helpers: adding command line argument parsing
      validation: common: adding command line argument parsing
      validation: shmem: adding command line argument parsing
      helpers: linux: creating common entry for process and thread
      helpers: linux: creating functions to handle odpthreads
      helper: test: adding odpthread functions tests
      validation: using implementation agnostic function for ODP threads
      validation: most tests: adding command line argument parsing
      validation: init: adding command line argument parsing
      validation: pktio: adding command line argument parsing
      helper: adding a function to merge getopt parameters
      helper: parsing the complete set of options
      performance: odp_scheduling: proc mode done by helper
      performance: odp_pktio_perf: using agnostic function for ODP threads
      performance: odp_pktio_perf: adding helper cmd line parsing
      performance: odp_l2fwd: using agnostic function for ODP threads
      performance: odp_l2fwd: adding helper cmd line parsing
      performance: crypto: using agnostic function for ODP threads
      performance: crypto: adding helper cmd line parsing
      example: classifier: using agnostic function for ODP threads
      example: classifier: adding helper cmd line parsing
      example: generator: using agnostic function for ODP threads
      example: generator: adding helper cmd line parsing
      example: ipsec: using agnostic function for ODP threads
      example: ipsec: adding helper cmd line parsing
      example: l2fwd_simple: using agnostic function for ODP threads
      example: l2fwd_simple: adding helper cmd line parsing
      example: pktio: using agnostic function for ODP threads
      example: pktio: adding helper cmd line parsing
      example: time: using agnostic function for ODP threads
      example: time: adding helper cmd line parsing
      example: timer: using agnostic function for ODP threads
      example: timer: adding helper cmd line parsing
      example: switch: using agnostic function for ODP threads
      example: switch: adding helper cmd line parsing
      helper: removing dead code

 example/classifier/odp_classifier.c                |  39 +-
 example/generator/odp_generator.c                  |  45 ++-
 example/ipsec/odp_ipsec.c                          |  27 +-
 example/l2fwd_simple/odp_l2fwd_simple.c            |  48 ++-
 example/packet/odp_pktio.c                         |  45 ++-
 example/switch/odp_switch.c                        |  26 +-
 example/time/time_global_test.c                    |  17 +-
 example/timer/odp_timer_test.c                     |  26 +-
 helper/include/odp/helper/linux.h                  | 183 +++++----
 helper/linux.c                                     | 414 ++++++++++++++-------
 helper/test/.gitignore                             |   3 +-
 helper/test/Makefile.am                            |  14 +-
 helper/test/{thread.c => odpthreads.c}             |  33 +-
 helper/test/odpthreads_as_mixed                    |  15 +
 helper/test/odpthreads_as_processes                |  15 +
 helper/test/odpthreads_as_pthreads                 |  15 +
 helper/test/process.c                              |  92 -----
 platform/linux-generic/test/pktio/pktio_run        |  21 +-
 platform/linux-generic/test/pktio/pktio_run_dpdk   |  17 +-
 platform/linux-generic/test/pktio/pktio_run_netmap |   5 +-
 platform/linux-generic/test/pktio/pktio_run_pcap   |   5 +-
 platform/linux-generic/test/pktio/pktio_run_tap    |   6 +-
 test/performance/odp_crypto.c                      |  24 +-
 test/performance/odp_l2fwd.c                       |  37 +-
 test/performance/odp_pktio_perf.c                  |  34 +-
 test/performance/odp_scheduling.c                  |  91 ++---
 test/validation/atomic/atomic.c                    |  40 +-
 test/validation/atomic/atomic.h                    |   2 +-
 test/validation/atomic/atomic_main.c               |   4 +-
 test/validation/barrier/barrier.c                  |  14 +-
 test/validation/barrier/barrier.h                  |   2 +-
 test/validation/barrier/barrier_main.c             |   4 +-
 test/validation/buffer/buffer.c                    |  10 +-
 test/validation/buffer/buffer.h                    |   2 +-
 test/validation/buffer/buffer_main.c               |   4 +-
 test/validation/classification/classification.c    |  10 +-
 test/validation/classification/classification.h    |   2 +-
 .../classification/classification_main.c           |   4 +-
 test/validation/common/odp_cunit_common.c          |  24 +-
 test/validation/common/odp_cunit_common.h          |   6 +-
 test/validation/config/config.c                    |  10 +-
 test/validation/config/config.h                    |   2 +-
 test/validation/config/config_main.c               |   4 +-
 test/validation/cpumask/cpumask.c                  |  10 +-
 test/validation/cpumask/cpumask.h                  |   2 +-
 test/validation/cpumask/cpumask_main.c             |   4 +-
 test/validation/crypto/crypto.c                    |   6 +-
 test/validation/crypto/crypto.h                    |   2 +-
 test/validation/crypto/crypto_main.c               |   4 +-
 test/validation/errno/errno.c                      |  10 +-
 test/validation/errno/errno.h                      |   2 +-
 test/validation/errno/errno_main.c                 |   4 +-
 test/validation/hash/hash.c                        |  10 +-
 test/validation/hash/hash.h                        |   2 +-
 test/validation/hash/hash_main.c                   |   4 +-
 test/validation/init/init.c                        |  18 +-
 test/validation/init/init.h                        |   6 +-
 test/validation/init/init_main_abort.c             |   4 +-
 test/validation/init/init_main_log.c               |   4 +-
 test/validation/init/init_main_ok.c                |   4 +-
 test/validation/lock/lock.c                        |  50 +--
 test/validation/lock/lock.h                        |   2 +-
 test/validation/lock/lock_main.c                   |   4 +-
 test/validation/packet/packet.c                    |  10 +-
 test/validation/packet/packet.h                    |   2 +-
 test/validation/packet/packet_main.c               |   4 +-
 test/validation/pktio/pktio.c                      |  10 +-
 test/validation/pktio/pktio.h                      |   2 +-
 test/validation/pktio/pktio_main.c                 |   4 +-
 test/validation/pool/pool.c                        |  10 +-
 test/validation/pool/pool.h                        |   2 +-
 test/validation/pool/pool_main.c                   |   4 +-
 test/validation/queue/queue.c                      |  10 +-
 test/validation/queue/queue.h                      |   2 +-
 test/validation/queue/queue_main.c                 |   4 +-
 test/validation/random/random.c                    |  10 +-
 test/validation/random/random.h                    |   2 +-
 test/validation/random/random_main.c               |   4 +-
 test/validation/scheduler/scheduler.c              |  18 +-
 test/validation/scheduler/scheduler.h              |   2 +-
 test/validation/scheduler/scheduler_main.c         |   4 +-
 test/validation/shmem/shmem.c                      |  16 +-
 test/validation/shmem/shmem.h                      |   2 +-
 test/validation/shmem/shmem_main.c                 |   4 +-
 test/validation/std_clib/std_clib.c                |  10 +-
 test/validation/std_clib/std_clib.h                |   2 +-
 test/validation/std_clib/std_clib_main.c           |   4 +-
 test/validation/system/system.c                    |  10 +-
 test/validation/system/system.h                    |   2 +-
 test/validation/system/system_main.c               |   4 +-
 test/validation/thread/thread.c                    |  14 +-
 test/validation/thread/thread.h                    |   2 +-
 test/validation/thread/thread_main.c               |   4 +-
 test/validation/time/time.c                        |  10 +-
 test/validation/time/time.h                        |   2 +-
 test/validation/time/time_main.c                   |   4 +-
 test/validation/timer/timer.c                      |  10 +-
 test/validation/timer/timer.h                      |   2 +-
 test/validation/timer/timer_main.c                 |   4 +-
 test/validation/traffic_mngr/traffic_mngr.c        |   6 +-
 test/validation/traffic_mngr/traffic_mngr.h        |   2 +-
 test/validation/traffic_mngr/traffic_mngr_main.c   |   4 +-
 102 files changed, 1097 insertions(+), 718 deletions(-)
 rename helper/test/{thread.c => odpthreads.c} (71%)
 create mode 100755 helper/test/odpthreads_as_mixed
 create mode 100755 helper/test/odpthreads_as_processes
 create mode 100755 helper/test/odpthreads_as_pthreads
 delete mode 100644 helper/test/process.c