Hi guys,
When trying to fix bug #892(http://bugzilla.pokylinux.org/show_bug.cgi?id=892),
I met some problems in generating the default site config files used by
cross-canadian toolchain.
When using autoconf for cross-compile, it is impossible to check features that
require running a test program. We should set those values in a file and have
the environment variable CONFIG_SITE set to that file, so the autoconf can run
correctly for cross-compiling. That's why the 2 recipes meta-toolchain.bb and
meta-environment.bb set the CONFIG_SITE environment variable in relevant
environment files. Both of them use the function siteinfo_get_files() defined
in siteinfo.bbclass.
The function siteinfo_get_files() is designed to get the default site config
files for the target system. It collects site config files from 2 places, one
is the "site" subdirectory of each BBPATH, the other is from
SITECONFIG_SYSROOT_CACHE where each package will put their own site config
cache file during their populate-sysroot task respectively.
Here we have a problem with meta-environment/meta-toolchain recipe. When
meta-environment/meta-toolchain try to call siteinfo_get_files(), there is no
way to guarantee that all other packages have finished their populate-sysroot
tasks and have put their site config cache files into the
SITECONFIG_SYSROOT_CACHE. So the value returned by siteinfo_get_files() might
differ from time to time depends on what other packages have been built before
"bitbake meta-toolchain".
When the user try to cross-compile an application using cross-canadian
toolchain we provide, we now encourage the user to use the same rootfs for both
running and cross-compiling. So I'm thinking of copying those site config cache
files in SITECONFIG_SYSROOT_CACHE into the rootfs, and have the CONFIG_SITE in
the relevant environment file point to those site config cache files in the
rootfs, something like:
export
CONFIG_SITE="${POKY_TARGET_SYSROOT}/usr/share/site-config-i586-poky-linux"
Any comments?
Best Regards,
-Lianhao
_______________________________________________
Openembedded-core mailing list
[email protected]
http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core
