linux-kernel - Re: vdso_install target broken post-3.15

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Message-ID: <5398732E.2060900@zytor.com>
Date:	Wed, 11 Jun 2014 08:18:06 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Josh Boyer <jwboyer@...oraproject.org>,
	Andy Lutomirski <luto@...capital.net>
CC:	"Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>
Subject: Re: vdso_install target broken post-3.15

On 06/11/2014 08:16 AM, Josh Boyer wrote:
> On Wed, Jun 11, 2014 at 10:14 AM, Josh Boyer <jwboyer@...oraproject.org> wrote:
>> Hi,
>>
>> I'm guessing commit 6f121e548f83674ab4920a4e60afb58d4f61b829 is what
>> broke the vdso_install target:
>>
>> + make -s ARCH=x86_64
>> INSTALL_MOD_PATH=/home/jwboyer/rpmbuild/BUILDROOT/kernel-3.16.0-0.rc0.git1.1.fc21.x86_64
>> vdso_install KERNELRELEASE=3.16.0-0.rc0.git1.1.fc21.x86_64
>> make[1]: *** No rule to make target `arch/x86/vdso/vdso.so.dbg',
>> needed by `vdso.so'.  Stop.
>> make: *** [vdso_install] Error 2
>>
>> The crazy Fedora versioning there corresponds to
>> 3f17ea6dea8ba5668873afa54628a91aaa3fb1c0 in Linus' tree.  I'll poke at
>> this some, but if you have some quick ideas I'd be happy to try them.
> 
> OK, I'm stumped.  Looking at that commit, it removes all target
> invocations for vdso.so.  Which means even a simple 'make' in the vdso
> directory fails with:
> 
> [jwboyer@...er vdso]$ make
> make: *** No rule to make target `/vdso.so', needed by `/vdso.o'.  Stop.
> [jwboyer@...er vdso]$
> 
> So how was this commit build tested?
> 

Since when do we support "make" in a subdirectory?

	-hpa


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