ftrace/x86: Move MCOUNT_SAVE_FRAME out of header file
Linus pointed out that MCOUNT_SAVE_FRAME is used in only a single file and that there's no reason that it should be in a header file. Move the macro to the code that uses it. Link: http://lkml.kernel.org/r/CA+55aFwF+qCGSKdGaEgW4p6N65GZ5_XTV=1NbtWDvxnd5yYLiw@mail.gmail.com Link: http://lkml.kernel.org/r/alpine.DEB.2.11.1411262304010.3961@nanos Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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@ -1,39 +1,6 @@
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#ifndef _ASM_X86_FTRACE_H
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#define _ASM_X86_FTRACE_H
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#ifdef __ASSEMBLY__
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/* skip is set if the stack was already partially adjusted */
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.macro MCOUNT_SAVE_FRAME skip=0
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/*
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* We add enough stack to save all regs.
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*/
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subq $(SS+8-\skip), %rsp
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movq %rax, RAX(%rsp)
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movq %rcx, RCX(%rsp)
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movq %rdx, RDX(%rsp)
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movq %rsi, RSI(%rsp)
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movq %rdi, RDI(%rsp)
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movq %r8, R8(%rsp)
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movq %r9, R9(%rsp)
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/* Move RIP to its proper location */
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movq SS+8(%rsp), %rdx
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movq %rdx, RIP(%rsp)
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.endm
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.macro MCOUNT_RESTORE_FRAME skip=0
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movq R9(%rsp), %r9
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movq R8(%rsp), %r8
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movq RDI(%rsp), %rdi
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movq RSI(%rsp), %rsi
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movq RDX(%rsp), %rdx
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movq RCX(%rsp), %rcx
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movq RAX(%rsp), %rax
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addq $(SS+8-\skip), %rsp
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.endm
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#endif
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#ifdef CONFIG_FUNCTION_TRACER
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#ifdef CC_USING_FENTRY
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# define MCOUNT_ADDR ((long)(__fentry__))
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@ -21,6 +21,35 @@
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# define function_hook mcount
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#endif
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/* skip is set if the stack was already partially adjusted */
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.macro MCOUNT_SAVE_FRAME skip=0
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/*
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* We add enough stack to save all regs.
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*/
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subq $(SS+8-\skip), %rsp
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movq %rax, RAX(%rsp)
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movq %rcx, RCX(%rsp)
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movq %rdx, RDX(%rsp)
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movq %rsi, RSI(%rsp)
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movq %rdi, RDI(%rsp)
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movq %r8, R8(%rsp)
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movq %r9, R9(%rsp)
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/* Move RIP to its proper location */
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movq SS+8(%rsp), %rdx
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movq %rdx, RIP(%rsp)
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.endm
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.macro MCOUNT_RESTORE_FRAME skip=0
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movq R9(%rsp), %r9
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movq R8(%rsp), %r8
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movq RDI(%rsp), %rdi
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movq RSI(%rsp), %rsi
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movq RDX(%rsp), %rdx
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movq RCX(%rsp), %rcx
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movq RAX(%rsp), %rax
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addq $(SS+8-\skip), %rsp
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.endm
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/* skip is set if stack has been adjusted */
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.macro ftrace_caller_setup trace_label skip=0
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MCOUNT_SAVE_FRAME \skip
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