Unify ldd/ldconfig for all multilib eglibcs

This series of patch allow all the eglibc(s) in the current multilib configuration have the same ldd/ldconfig settings.

We put the dynamic loaders'(ld.so) names in the dictionary of "ld_info_all" defined in the file eglibc-ld.inc. This dictionary is indexed by the TUNENAME. To support a new ABI, new entry should be added into this dictionary along with the new ABI's TUNENAME.

The information in ld_info_all can be used for both ldd script and ldconfig binary.

The following changes since commit f94b781695cd8fa387daff16ecbf3987a0883018:
Bruce Ashfield (1):
poky.conf: explicitly referenced preferred linux-yocto version

are available in the git repository at:

git://git.pokylinux.org/poky-contrib llu/bug1236
http://git.pokylinux.org/cgit.cgi/poky-contrib/log/?h=llu/bug1236

Lianhao Lu (3):
utils.bbclass/multilib.conf: Added misc supporting functions.
eglibc: Modify ldd script according to multilib config.
eglibc: Setting KNOWN_INTERPRETER_NAMES for ldconfig.

 meta/classes/utils.bbclass                         |   31 ++++++++++++
 meta/conf/bitbake.conf                             |    1 +
 meta/conf/multilib.conf                            |    6 ++-
 .../eglibc/eglibc-2.13/multilib_readlib.patch      |   20 ++++++++
 meta/recipes-core/eglibc/eglibc-ld.inc             |   49 ++++++++++++++++++++
 meta/recipes-core/eglibc/eglibc.inc                |    1 +
 meta/recipes-core/eglibc/eglibc_2.13.bb            |   12 ++++-
 7 files changed, 118 insertions(+), 2 deletions(-)
 create mode 100644 meta/recipes-core/eglibc/eglibc-2.13/multilib_readlib.patch
 create mode 100644 meta/recipes-core/eglibc/eglibc-ld.inc