OpenCloudOS-Kernel/arch/arm64/include/asm/linkage.h

#ifndef __ASM_LINKAGE_H
#define __ASM_LINKAGE_H

#define __ALIGN		.align 4
#define __ALIGN_STR	".align 4"

#endif
arm64: fix alignment padding in assembly code An interesting effect of using the generic version of linkage.h is that the padding is defined in terms of x86 NOPs, which can have even more interesting effects when the assembly code looks like this: ENTRY(func1) mov x0, xzr ENDPROC(func1) // fall through ENTRY(func2) mov x0, #1 ret ENDPROC(func2) Admittedly, the code is not very nice. But having code from another architecture doesn't look completely sane either. The fix is to add arm64's version of linkage.h, which causes the insertion of proper AArch64 NOPs. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> 2012-10-20 00:33:27 +08:00			`#ifndef __ASM_LINKAGE_H`
			`#define __ASM_LINKAGE_H`

			`#define __ALIGN .align 4`
			`#define __ALIGN_STR ".align 4"`

			`#endif`