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

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Date:	Wed, 11 Jun 2014 08:24:11 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Andy Lutomirski <luto@...capital.net>,
	Josh Boyer <jwboyer@...oraproject.org>
CC:	"Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>
Subject: Re: vdso_install target broken post-3.15

On 06/11/2014 08:20 AM, Andy Lutomirski wrote:
> 
> Is vdso_install supposed to install a .so file or just a .so.dbg file?
>  I'm having trouble parsing this:
> 
> quiet_cmd_vdso_install = INSTALL $@
>       cmd_vdso_install = cp $(obj)/$@...g $(MODLIB)/vdso/$@
> $(vdso-install-y): %.so: $(obj)/%.so.dbg FORCE
>         @mkdir -p $(MODLIB)/vdso
>         $(call cmd,vdso_install)
> 
> This seems like a rather complicated way of saying that the .so.dbg is
> installed with the .dbg at the end removed.  We can do that.  Let me
> see if I can disentangle the makefile enough.
> 

That is, indeed, what it says.

> If we need real stripped .so files, vdso2c knows how to generate them,
> but the makefile doesn't invoke it like that.  I don't see why we'd
> want to install them, though.

I don't think there is any point in that.

	-hpa

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