On Thu, 2011-06-09 at 15:40 -0700, Saul Wold wrote: > On 06/02/2011 08:11 PM, wenzong fan wrote: > > Hi Folks, > > > > Please help me to review the design document for ccache-native, and > > I also have two questions about it, any answers or suggestions are > > appreciated. > > > > * Feature name: ccache-native > > Priority: P3; M2 > > Owner: Wenzong Fan > > Summary: Integrate ccache-native to yocto > > > > * Description: > > Bitbake supports the 'CCACHE Mechanism', but 'ccache' hasn't been > > included by poky/yocto, just add it as a native tool. > > > > * Usage: > > Build ccache as a native tool by default and enable it for speeding > > target packages build. > > > > * Implementation: > > 1) Copy bb file from OE upstream to: > > meta/recipes-devtools/ccache/ > > > > 2) Update bb file to get the latest ccache_3.1.5 and split the single > > bb file to: > > 'ccache_3.1.5.bb', 'ccache.inc' > > > > 3) Enable ccache in the native tools building. > > > You will need to have it be a dependency pretty early on in the build. > Additionally, this is a bit a new part to this task, we want to have the > default CCACHE_DIR for the build default to a directory in TMPDIR > instead of the user's home directory. This will mean setting an > environment variable somewhere early also.
There is a little more detail on: https://wiki.yoctoproject.org/wiki/Yocto_1.1_Schedule Specifically, "c) Set CCACHE on a per recipe basis. need to figure out whether ccache data can be shared and under what circumstances." so something like adding: export CCACHE_DIR = "${TMPDIR}/ccache/${TARGET_SYS}/${PN}" to bitbake.conf with a bit more thought into working out the right components to add to the variable. Cheers, Richard _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core
