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/* $OpenBSD: alloca.S,v 1.1 2004/01/28 01:44:45 mickey Exp $ */
/* $NetBSD: alloca.S,v 1.1 2001/06/19 00:25:02 fvdl Exp $ */
#include <machine/asm.h>
ENTRY(alloca)
popq %rdx
movq %rsp,%rcx
addq $15,%rdi /* round up to 16 bytes */
andq $~15,%rdi
subq %rdi,%rsp
movq %rsp,%rax
jmp *%rdx
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