[ltt-dev] [PATCH RFC urcu 0/2] v2 allow multiple URCU flavors in one executable

[Paul E. McKenney]

Hello!

The following set of patches permits a single executable to use
multiple flavors of URCU without resorting to linker tricks.  The
approach is to map each flavor to a different namespace.  The patches
are as follows:

1.	Provide pthread_atfork-friendly interfaces.
2.	Map symbols to allow multiple flavors of URCU to be mixed.
3.	Apply feedback from v1 review.
4.	Extend symbol mapping to include defer_rcu().

This does not yet centralize pthread_atfork() handling, nor does it
combine all the binaries into a single dynamic library.  This latter
is enabled by the name mapping.

Further thoughts?

							Thanx, Paul


 Makefile.am            |    4 
 README                 |   20 -
 a/urcu-call-rcu.c      |  620 -------------------------------------------------
 b/Makefile.am          |    3 
 b/README               |    4 
 b/tests/Makefile.am    |   33 +-
 b/tests/rcutorture.h   |    1 
 b/tests/urcutorture.c  |   13 -
 b/urcu-bp-map.h        |   61 ++++
 b/urcu-bp.c            |    4 
 b/urcu-bp.h            |    8 
 b/urcu-call-rcu-impl.h |  618 ++++++++++++++++++++++++++++++++++++++++++++++++
 b/urcu-call-rcu.c      |   29 ++
 b/urcu-defer-impl.h    |  450 +++++++++++++++++++++++++++++++++++
 b/urcu-map.h           |  117 +++++++++
 b/urcu-qsbr-map.h      |   63 ++++
 b/urcu-qsbr.c          |   36 +-
 b/urcu-qsbr.h          |   18 -
 b/urcu.c               |    5 
 b/urcu.h               |   20 +
 tests/Makefile.am      |    2 
 urcu-bp-map.h          |    6 
 urcu-bp.c              |    1 
 urcu-bp.h              |    5 
 urcu-defer-static.h    |  108 --------
 urcu-defer.c           |  385 ------------------------------
 urcu-map.h             |   26 ++
 urcu-qsbr-map.h        |    6 
 urcu-qsbr.c            |    1 
 urcu-qsbr.h            |   11 
 urcu.c                 |    1 
 urcu.h                 |   13 -
 32 files changed, 1497 insertions(+), 1195 deletions(-)