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>

diff --git a/arch/x86/include/asm/dwarf2.h b/arch/x86/include/asm/dwarf2.h
index 09133ba..b7a1ab8 100644 (file)
--- a/arch/x86/include/asm/dwarf2.h
+++ b/arch/x86/include/asm/dwarf2.h
@@ -81,97 +81,4 @@
 
 #endif
 
-/*
- * An attempt to make CFI annotations more or less
- * correct and shorter. It is implied that you know
- * what you're doing if you use them.
- */
-#ifdef __ASSEMBLY__
-#ifdef CONFIG_X86_64
-       .macro pushq_cfi reg
-       pushq \reg
-       CFI_ADJUST_CFA_OFFSET 8
-       .endm
-
-       .macro pushq_cfi_reg reg
-       pushq %\reg
-       CFI_ADJUST_CFA_OFFSET 8
-       CFI_REL_OFFSET \reg, 0
-       .endm
-
-       .macro popq_cfi reg
-       popq \reg
-       CFI_ADJUST_CFA_OFFSET -8
-       .endm
-
-       .macro popq_cfi_reg reg
-       popq %\reg
-       CFI_ADJUST_CFA_OFFSET -8
-       CFI_RESTORE \reg
-       .endm
-
-       .macro pushfq_cfi
-       pushfq
-       CFI_ADJUST_CFA_OFFSET 8
-       .endm
-
-       .macro popfq_cfi
-       popfq
-       CFI_ADJUST_CFA_OFFSET -8
-       .endm
-
-       .macro movq_cfi reg offset=0
-       movq %\reg, \offset(%rsp)
-       CFI_REL_OFFSET \reg, \offset
-       .endm
-
-       .macro movq_cfi_restore offset reg
-       movq \offset(%rsp), %\reg
-       CFI_RESTORE \reg
-       .endm
-#else /*!CONFIG_X86_64*/
-       .macro pushl_cfi reg
-       pushl \reg
-       CFI_ADJUST_CFA_OFFSET 4
-       .endm
-
-       .macro pushl_cfi_reg reg
-       pushl %\reg
-       CFI_ADJUST_CFA_OFFSET 4
-       CFI_REL_OFFSET \reg, 0
-       .endm
-
-       .macro popl_cfi reg
-       popl \reg
-       CFI_ADJUST_CFA_OFFSET -4
-       .endm
-
-       .macro popl_cfi_reg reg
-       popl %\reg
-       CFI_ADJUST_CFA_OFFSET -4
-       CFI_RESTORE \reg
-       .endm
-
-       .macro pushfl_cfi
-       pushfl
-       CFI_ADJUST_CFA_OFFSET 4
-       .endm
-
-       .macro popfl_cfi
-       popfl
-       CFI_ADJUST_CFA_OFFSET -4
-       .endm
-
-       .macro movl_cfi reg offset=0
-       movl %\reg, \offset(%esp)
-       CFI_REL_OFFSET \reg, \offset
-       .endm
-
-       .macro movl_cfi_restore offset reg
-       movl \offset(%esp), %\reg
-       CFI_RESTORE \reg
-       .endm
-#endif /*!CONFIG_X86_64*/
-#endif /*__ASSEMBLY__*/
-
 #endif /* _ASM_X86_DWARF2_H */