# \[PATCH v2\] lib/decompress\_unxz.c: removing all memory helper functions

- From: Nicolas Pitre \<hidden\>
- Date: 2012-06-12 17:45:06 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2012/06/3878300
- Thread: https://ratatoskr.run/linux-arm-kernel/2012/06/3877875/t.md

```text
On Tue, 12 Jun 2012, H. Peter Anvin wrote:

> On 06/12/2012 10:26 AM, Nicolas Pitre wrote:
> > 
> > Instead of copying, maybe this would be much better to make the content 
> > of lib/string.c usable in a pre-boot environment.
> > 
> 
> Not sure about that... a lot of it is #ifndef __HAVE_ARCH_* and you
> *really* want those optimizations on some arches.

Sure.  What about:

lib/boot/mem.c: lib/string.c
	sed 's/^#ifndef __HAVE_ARCH_/#ifndef __HAVE_PREBOOT_ARCH_/' < $< > $@

This is over simplified but you get the idea.  Maybe lib/string.c itself 
should be split into several files to help with a finer grained 
selection.


Nicolas
```