ftrace: Move ARCH_SUPPORTS_FTRACE_SAVE_REGS in Kconfig
Move SAVE_REGS support flag into Kconfig and rename it to CONFIG_DYNAMIC_FTRACE_WITH_REGS. This also introduces CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS which indicates the architecture depending part of ftrace has a code that saves full registers. On the other hand, CONFIG_DYNAMIC_FTRACE_WITH_REGS indicates the code is enabled. Link: http://lkml.kernel.org/r/20120928081516.3560.72534.stgit@ltc138.sdl.hitachi.co.jp Cc: Ingo Molnar <mingo@elte.hu> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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committed by
Steven Rostedt

parent
8741db532e
commit
06aeaaeabf
@@ -74,7 +74,7 @@ typedef void (*ftrace_func_t)(unsigned long ip, unsigned long parent_ip,
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* SAVE_REGS - The ftrace_ops wants regs saved at each function called
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* and passed to the callback. If this flag is set, but the
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* architecture does not support passing regs
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* (ARCH_SUPPORTS_FTRACE_SAVE_REGS is not defined), then the
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* (CONFIG_DYNAMIC_FTRACE_WITH_REGS is not defined), then the
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* ftrace_ops will fail to register, unless the next flag
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* is set.
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* SAVE_REGS_IF_SUPPORTED - This is the same as SAVE_REGS, but if the
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@@ -418,7 +418,7 @@ void ftrace_modify_all_code(int command);
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#endif
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#ifndef FTRACE_REGS_ADDR
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#ifdef ARCH_SUPPORTS_FTRACE_SAVE_REGS
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#ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS
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# define FTRACE_REGS_ADDR ((unsigned long)ftrace_regs_caller)
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#else
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# define FTRACE_REGS_ADDR FTRACE_ADDR
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@@ -480,7 +480,7 @@ extern int ftrace_make_nop(struct module *mod,
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*/
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extern int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr);
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#ifdef ARCH_SUPPORTS_FTRACE_SAVE_REGS
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#ifdef CONFIG_DYNAMIC_FTRACE_WITH_REGS
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/**
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* ftrace_modify_call - convert from one addr to another (no nop)
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* @rec: the mcount call site record
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