[yocto] Quick confirmation about multilib

[Kang Kai]

On 2018/12/13 上午1:16, Nicholas Tsirakis wrote:
> Sure, thanks for the reply. The image itself should is 64 bit and I 
> want to add an additional toolchain to my image that can run 32-bit 
> binaries. I am trying to build a 32-bit glibc that will be part of 
> this toolchain.
>
> Now, when I go to build, there is a new folder that got created in 
> tmp-glibc for the lib32-* files:
>
> tmp-glibc/work/x86-oemllib32-linux/lib32-*
>
> and upon entering the lib32-glibc folder, I'm seeing this:
>
> tmp-glibc/work/x86-oemllib32-linux/lib32-glibc/2.25-r0/build-x86_64-oemllib32-linux/
>
> I'm just not sure if that "x86_64" in the build folder name is correct.

Hi Nicholas,

It seems not right that it should be "build-i686-pokymllib32-linux". Do 
you have any other config? And do you use Yocto
that your TARGET_VENDOR is 'oe' but the default value is 'poky'. And 
please check var TARGET_SYS from output of 'bitbake -e',
you may find where "x86_64" is from.

Regards,
Kai




> I may be doing something entirely wrong as well; this is my first time 
> using multilib. As an FYI, I have the following to my local.conf:
> require conf/multilib.conf
> MULTILIBS = "multilib:lib32"
> DEFAULTTUNE_virtclass-multilib-lib32 = "x86"
>
> Any clarification is appreciated.
>
> On Wed, Dec 12, 2018 at 12:04 PM Burton, Ross <ross.burton at intel.com 
> <mailto:ross.burton at intel.com>> wrote:
>
>     On Wed, 12 Dec 2018 at 16:59, Nicholas Tsirakis
>     <niko.tsirakis at gmail.com <mailto:niko.tsirakis at gmail.com>> wrote:
>     > I'm trying to build a 32-bit toolchain for my 64-bit image using
>     multilib and was hoping someone could confirm something for me. I
>     am seeing issues when building lib32-glibc, and I can't tell if
>     it's attempting to build properly. The resulting build files are
>     created in a folder called "x86_64-oemllib32-..." - is this
>     correct? Or should it be "x86-oemllib32" being that it's a 32-bit
>     library?
>
>     Can you clarify here was should be 32-bit and what should be 64-bit?
>
>     Ross
>
>

-- 
Kai Kang

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