Omission in wiki.linaro.org/Platform/Android/BuildSource

Amit Pundir amit.pundir at linaro.org
Thu Jan 12 17:48:18 UTC 2012


On 12 January 2012 21:14, Andy Doan <andy.doan at linaro.org> wrote:

> On 01/12/2012 05:34 AM, Jon Medhurst (Tixy) wrote:
> > On Thu, 2012-01-12 at 13:20 +0200, Paul Sokolovsky wrote:
> >> I had a look at the latest
> >> http://wiki.linaro.org/Platform/Android/BuildSource and see that it
> >> doesn't mention the need to run ". build/envsetup.sh" explicitly. I
> >> don't know if that's omitted deliberately or just forgotten.
> >
> > The wiki mentions that you don't need to run it. Under "Divergence from
> > Google's standard build instructions"
> >
> >>  I don't if
> >> it works without it or no (I would doubt it does, but maybe there were
> >> changes to makefiles and stuff).
> >
> > I've never done envsetup.sh, I just repo init, repo sync, and then...
> >
> > PATH=$PWD/android-toolchain-eabi/bin/:$PATH make -j8 \
> >   TARGET_PRODUCT=vexpress_a9 \
> >
> TARGET_TOOLS_PREFIX=$PWD/android-toolchain-eabi/bin/arm-linux-androideabi- \
> >   boottarball systemtarball userdatatarball
> >
>
> This is interesting. The instructions in that page used to say you
> needed to pull in envsetup.sh. I guess you don't *have* to do it.
> However, it does have some nice benefits. The envsetup.sh adds some
> handy shortcuts. Specifically:
>
> - croot:   Changes directory to the top of the tree.
> - m:       Makes from the top of the tree.
> - mm:      Builds all of the modules in the current directory.
> - mmm:     Builds all of the modules in the supplied directories.
> - cgrep:   Greps on all local C/C++ files.
> - jgrep:   Greps on all local Java files.
> - resgrep: Greps on all local res/*.xml files.
> - godir:   Go to the directory containing a file.
>
> I've found I still TARGET_PRODUCT and TARGET_TOOLS_PREFIX set when I run
> them, but they are still handy. I use mmm all the time when I'm trying
> to deal with a build issue for some component.
>
>
Thanks Andy, for summing it up.

I have now added a new section on BuildSource page which talks about this
optional step.

Regards,
Amit Pundir


> Not to get off subject, but there are two more really handy android
> build tricks. Say you are building a binary, skia_bench. There are two
> really useful commands:
>
>  make TARGET_PRODUCT=XXX TARGET_TOOLS_PREFIX=XXX skia_bench
>  make TARGET_PRODUCT=XXX TARGET_TOOLS_PREFIX=XXX clean-skia_bench
>
>
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