4625cd6379
Rather than having two functionally identical implementations for 32- and 64-bit configurations, extend the existing assembly abstractions enough to fold the two rwlock implementations into a shared one. Signed-off-by: Jan Beulich <jbeulich@novell.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/4E258DD7020000780004E3EA@nat28.tlf.novell.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
27 lines
582 B
C
27 lines
582 B
C
#ifdef __ASSEMBLY__
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#include <asm/asm.h>
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#include <asm/dwarf2.h>
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/* The annotation hides the frame from the unwinder and makes it look
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like a ordinary ebp save/restore. This avoids some special cases for
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frame pointer later */
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#ifdef CONFIG_FRAME_POINTER
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.macro FRAME
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__ASM_SIZE(push,_cfi) %__ASM_REG(bp)
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CFI_REL_OFFSET __ASM_REG(bp), 0
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__ASM_SIZE(mov) %__ASM_REG(sp), %__ASM_REG(bp)
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.endm
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.macro ENDFRAME
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__ASM_SIZE(pop,_cfi) %__ASM_REG(bp)
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CFI_RESTORE __ASM_REG(bp)
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.endm
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#else
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.macro FRAME
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.endm
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.macro ENDFRAME
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.endm
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#endif
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#endif /* __ASSEMBLY__ */
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