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x86/asm: Remove the xyz_cfi macros from dwarf2.h
They are currently unused, and I don't think that anyone was ever particularly happy with them. They had the unfortunate property that they made it easy to CFI-annotate things without thinking about them -- when pushing, do you want to just update the CFA offset, or do you also want to update the saved location of the register being pushed? Suggested-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1447bfbd10bb268b4593b32534ecefa1f4df287e.1444696194.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
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@ -81,97 +81,4 @@
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#endif
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/*
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* An attempt to make CFI annotations more or less
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* correct and shorter. It is implied that you know
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* what you're doing if you use them.
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*/
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#ifdef __ASSEMBLY__
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#ifdef CONFIG_X86_64
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.macro pushq_cfi reg
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pushq \reg
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CFI_ADJUST_CFA_OFFSET 8
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.endm
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.macro pushq_cfi_reg reg
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pushq %\reg
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CFI_ADJUST_CFA_OFFSET 8
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CFI_REL_OFFSET \reg, 0
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.endm
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.macro popq_cfi reg
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popq \reg
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CFI_ADJUST_CFA_OFFSET -8
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.endm
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.macro popq_cfi_reg reg
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popq %\reg
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CFI_ADJUST_CFA_OFFSET -8
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CFI_RESTORE \reg
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.endm
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.macro pushfq_cfi
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pushfq
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CFI_ADJUST_CFA_OFFSET 8
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.endm
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.macro popfq_cfi
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popfq
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CFI_ADJUST_CFA_OFFSET -8
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.endm
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.macro movq_cfi reg offset=0
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movq %\reg, \offset(%rsp)
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CFI_REL_OFFSET \reg, \offset
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.endm
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.macro movq_cfi_restore offset reg
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movq \offset(%rsp), %\reg
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CFI_RESTORE \reg
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.endm
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#else /*!CONFIG_X86_64*/
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.macro pushl_cfi reg
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pushl \reg
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CFI_ADJUST_CFA_OFFSET 4
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.endm
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.macro pushl_cfi_reg reg
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pushl %\reg
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CFI_ADJUST_CFA_OFFSET 4
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CFI_REL_OFFSET \reg, 0
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.endm
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.macro popl_cfi reg
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popl \reg
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CFI_ADJUST_CFA_OFFSET -4
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.endm
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.macro popl_cfi_reg reg
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popl %\reg
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CFI_ADJUST_CFA_OFFSET -4
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CFI_RESTORE \reg
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.endm
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.macro pushfl_cfi
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pushfl
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CFI_ADJUST_CFA_OFFSET 4
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.endm
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.macro popfl_cfi
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popfl
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CFI_ADJUST_CFA_OFFSET -4
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.endm
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.macro movl_cfi reg offset=0
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movl %\reg, \offset(%esp)
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CFI_REL_OFFSET \reg, \offset
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.endm
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.macro movl_cfi_restore offset reg
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movl \offset(%esp), %\reg
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CFI_RESTORE \reg
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.endm
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#endif /*!CONFIG_X86_64*/
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#endif /*__ASSEMBLY__*/
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#endif /* _ASM_X86_DWARF2_H */
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