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Richard Purdie 6ea24f04cd bitbake/data_smart: Improve the way lazyassignment works

Currently, if a variable has been set with ??= and the code looks it up
before the data finalisation phase, no value is found. This is causes
serious problems for anonymous python functions which manipulate data, or
for the fetcher revision handling code where revisions can be set with
??=.

There is also a significant performance implication for processing lazy
assignment in finalise.

Moving the check for a default value into getVarFlag addresses both
the timing issue and the performace. This change gives a 7% real time
performance improvement to parsing the Poky metadata. The cost of the
check at this point is minimal since we have all the data flags available.

This should also fix Yocto bug 752.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2011-02-23 11:48:01 +00:00

bitbake

bitbake/data_smart: Improve the way lazyassignment works

2011-02-23 11:48:01 +00:00

documentation

documentation/kernel-manual/kernel-how-to.xml: Changes to section 3.4.4 and new 3.4.5

2011-02-18 20:51:30 -08:00

README

Poky

Poky platform builder is a combined cross build system and development environment. It features support for building X11/Matchbox/GTK based filesystem images for various embedded devices and boards. It also supports cross-architecture application development using QEMU emulation and a standalone toolchain and SDK with IDE integration.

Poky has an extensive handbook, the source of which is contained in the handbook directory. For compiled HTML or pdf versions of this, see the Poky website http://pokylinux.org.

Additional information on the specifics of hardware that Poky supports is available in README.hardware.