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authorMasami Hiramatsu <masami.hiramatsu.pt@hitachi.com>2012-09-28 17:15:17 +0900
committerSteven Rostedt <rostedt@goodmis.org>2013-01-21 13:22:35 -0500
commit06aeaaeabf69da4a3e86df532425640f51b01cef (patch)
treee1ff9ec31435102d3f3ba665ce02de49879794f5 /kernel/trace/Kconfig
parent8741db532e86da2e54f05be751bfe1922ca63d57 (diff)
downloadop-kernel-dev-06aeaaeabf69da4a3e86df532425640f51b01cef.zip
op-kernel-dev-06aeaaeabf69da4a3e86df532425640f51b01cef.tar.gz
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>
Diffstat (limited to 'kernel/trace/Kconfig')
-rw-r--r--kernel/trace/Kconfig8
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 5d89335..cdc9d28 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -39,6 +39,9 @@ config HAVE_DYNAMIC_FTRACE
help
See Documentation/trace/ftrace-design.txt
+config HAVE_DYNAMIC_FTRACE_WITH_REGS
+ bool
+
config HAVE_FTRACE_MCOUNT_RECORD
bool
help
@@ -434,6 +437,11 @@ config DYNAMIC_FTRACE
were made. If so, it runs stop_machine (stops all CPUS)
and modifies the code to jump over the call to ftrace.
+config DYNAMIC_FTRACE_WITH_REGS
+ def_bool y
+ depends on DYNAMIC_FTRACE
+ depends on HAVE_DYNAMIC_FTRACE_WITH_REGS
+
config FUNCTION_PROFILER
bool "Kernel function profiler"
depends on FUNCTION_TRACER
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