Re: stack alignment in the kernel was Re: nasm over gas?

[Jamie Lokier]

Andi Kleen wrote:
> Hmm. The i386 Makefile sets that already. Where exactly did you see
> bogus stack adjustments in kernel code?

I didn't.  I saw them in a test program for __builtin_expect() in the
"oops_in_progress is unlikely()" thread.

I'm used to seeing redundant "mov" instructions and such from GCC, so
when I saw the stack adjustments with -O2 go away with -Os I thought
they were more of the same - not realising that -Os turns off the stack
alignment.  My error.

-- Jamie
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