Re: base.bbclass problem? Was: package-stagefile-shell() breaks if DEPLOY_DIR is outside of TMPDIR

[Koen Kooi <k.kooi@student.utwente.nl>]

On 26-09-2008 19:39, Denys Dmytriyenko wrote:
> Does anybody have any comments? Am I doing something totally wrong? Or is it
> too low-level so nobody wants to touch it? Please let me know. Thanks.


package_stagefile_shell is there to manually mark files that need to get 
revived to make a build work, which as it happens is with bootloaders 
and kernel images :)
I don't think it's limited to deploy, but your patch is a step in the 
right direction.

regards,

Koen


> On Thu, Sep 25, 2008 at 12:23:21AM -0400, Denys Dmytriyenko wrote:
>> Hi,
>>
>> I just submitted a bug report #4580, but wanted to follow up here as my
>> description/fix maybe controversial or at least touches the low-level stuff.
>>
>> Here is the description from the ticket:
>>
>> When DEPLOY_DIR is configured to be outside of TMPDIR, building a kernel
>> breaks, as "cp" cannot copy a file into itself:
>>
>> cp: `/OE/deploy/glibc/images/omap3evm/uImage.bin' and `/OE/deploy/glibc/images/omap3evm/uImage.bin' are the same file
>>
>> What happens is inside the do_deploy() function of the kernel.bbclass it calls
>> package-stagefile-shell() with the uImage binary in DEPLOY_DIR as a parameter:
>>
>> package_stagefile_shell ${DEPLOY_DIR_IMAGE}/${KERNEL_IMAGE_BASE_NAME}.bin
>>
>> That function is supposed to save a copy of the file in the staging directory
>> (packaged-staging magic):
>>
>> package_stagefile_shell() {
>>          if [ "$PSTAGING_ACTIVE" = "1" ]; then
>>                  srcfile=$1
>>                  destfile=`echo $srcfile | sed s#${TMPDIR}#${PSTAGE_TMPDIR_STAGE}#`
>>                  destdir=`dirname $destfile`
>>                  mkdir -p $destdir
>>                  cp -dp $srcfile $destfile
>>          fi
>> }
>>
>> The problem there is it substitutes (sed) TMPDIR with PSTAGE_TMPDIR_STAGE in
>> file's path. It works if DEPLOY_DIR is inside TMPDIR, but the path remains the
>> same if otherwise, leading to the mentioned error.
>>
>> The function above is a shell counterpart of the python package_stagefile(). I
>> grepped both of them and it appears the python function is used inside the
>> package.bbclass to do some actual staging, while the shell function is only
>> used in recipes for kernels and bootloaders (u-boot, x-load) and is always
>> called with files in DEPLOY_DIR.
>>
>> So, changing above sed command to:
>>
>> sed s#${DEPLOY_DIR}#${PSTAGE_TMPDIR_STAGE}#`
>>
>> makes it work and doesn't seem to break anything else for me. I think the
>> function maybe renamed to package_stagefile_deploy() to reflect its purpose,
>> but that would require changes in several recipes.
>>
>> I'm attaching the actual patch for review. It works for me, but I'm not sure
>> how correct it is, so I'm asking here. Thanks.
>>
>> --
>> Denys
>
>> diff --git a/classes/base.bbclass b/classes/base.bbclass
>> index 540b891..1172b8f 100644
>> --- a/classes/base.bbclass
>> +++ b/classes/base.bbclass
>> @@ -389,7 +389,7 @@ def package_stagefile(file, d):
>>   package_stagefile_shell() {
>>   	if [ "$PSTAGING_ACTIVE" = "1" ]; then
>>   		srcfile=$1
>> -		destfile=`echo $srcfile | sed s#${TMPDIR}#${PSTAGE_TMPDIR_STAGE}#`
>> +		destfile=`echo $srcfile | sed s#${DEPLOY_DIR}#${PSTAGE_TMPDIR_STAGE}#`
>>   		destdir=`dirname $destfile`
>>   		mkdir -p $destdir
>>   		cp -dp $srcfile $destfile