On Tue, Jul 10, 2007 at 10:19:14AM -0700, H. Peter Anvin wrote:
> I seem to always be the one with the kbuild corner cases...
>
> As part of my x86 setup rewrite, there has been some concern that using
> asm(".code16gcc"); isn't as safe as it should be (because of gcc
> reordering), and making it safe apparently means disabling optimizations
> that adds at least 5% to the code size. Not really a huge deal, but
> undesirable in the long run.
>
> The alternative is to compile to a .s file and then inject ".code16gcc"
> to the top of the .s file before assembling it into a .o file. This
> means overriding some of kbuild's implicit rules, and I'm not sure how
> to do that cleanly.
As part of my kbuild/kconfig pre-rewrite info collecting... whatever :)
I did asm-offsets build rewrite RFC four week ago:
<http://mid.gmane.org/[EMAIL PROTECTED]>
You may be interested in it. But Sam is busy, nothing happend since
then.
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