Re: [PATCH v2 2/2] x86: Support compiling out human-friendly processor feature names

From: H. Peter Anvin
Date: Sun Feb 23 2014 - 12:58:24 EST


On 02/22/2014 01:36 PM, Josh Triplett wrote:
>
> No, even after removing the ifdefs around the build rules as you
> suggested (and v3's fixes for the resulting build issues, notably
> changing some -y's to -$(CONFIG_X86_FEATURE_NAMES)), the makefiles still
> manage to not build mkcpustr or cpustr.h, because nothing depends on it.
>

How could it miss the rule:

$(obj)/cpu.o: $(obj)/cpustr.h

> I could change the build rules to generate an empty cpustr.h and avoid
> this ifdef, but that'd require an additional ifdef block in the Makefile.

Typically the way it is done is to generate the #ifdef *inside*
cpustr.h. However, cpustr.h is kind of special anyway so it probably
doesn't matter.

-hpa


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/