17 lines
327 B
ArmAsm
17 lines
327 B
ArmAsm
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/* $NetBSD: alloca.S,v 1.1 2001/06/19 00:25:02 fvdl Exp $ */
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#include <machine/asm.h>
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#if defined(LIBC_SCCS)
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RCSID("$NetBSD: alloca.S,v 1.1 2001/06/19 00:25:02 fvdl Exp $")
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#endif
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ENTRY(alloca)
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popq %rdx
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movq %rsp,%rcx
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addq $15,%rdi /* round up to 16 bytes */
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andq $~15,%rdi
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subq %rdi,%rsp
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movq %rsp,%rax
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jmp *%rdx
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