archiver: delete the tail slash in directory name

If directory names in SRC_URI ended with "/", function
do_ar_original() in layers/oe-core/meta/classes/archiver.bbclass
will generate a tar file whose name is ".tar.gz".
So delete the "/" at the tail of the directory names before use the names.

Signed-off-by: Jian Liu <jian.liu@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
oeqa/utils/httpserver: Reset SIGTERM handler

With bitbake-worker installing a SIGTERM handler, we now need to reset the one here
to ensure that when this process shuts down, it doesn't take the rest of the task
with it. This does appear to be the only place in OE that we have this problem.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
bitbake.conf: Set PACKAGE_ARCH with ??=

Currently its near impossible for other classes to sanely override
this value with their own default. By setting a weak default we can
allow other classes to change the default and allow end recipes to
again override this.

As far as I can tell, there shouldn't be any regressions from this
change.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
lib/oe/utils: Add utils function for multiprocess execution

Our usage of multitprocessing is problematic. In particular, there is a bug
in python 2.7 multiprocessing where signals are not handled until command
completion instead of immediately.

This factors the multiprocess code into a function which is enhanced with
a workaround to ensure immediate signal handling and also better SIGINT
handling which should happen in the parent, not the children to ensure
clean exits. The workaround for the signals is being added to the core
bb.utils function so it can benefit all users.

package_manager is then converted to use the new code.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
package.bbclass: Fixup for using common function

We may as well use the common function for this rather than
duplicating the code.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
packagegroup-core-tools-debug: Drop MACHINE_ARCH as PACKAGE_ARCH

There is nothing machine specific about this recipe.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
bitbake.conf/debian.bbclass: Move AUTO_LIBNAME_PKGS definition to class file

Might as well move this default to the class which uses it allowing
for easier reading/understanding of the class.

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