sh: Decouple mcount from ftrace.

This adds a general CONFIG_MCOUNT in order to permit mcount generation
without ftrace support. This is primarily for allowing platforms to
enable aggressive stack overflow checking without having to enable ftrace
support. Based on the sparc64 implementation.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index 52a132c24aab..75b5f4e06670 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -134,4 +134,9 @@ config STACK_DEBUG
           call and will therefore incur a major performance hit. Most
           users should say N.
 
+config MCOUNT
+        def_bool y
+        depends on SUPERH32
+        depends on STACK_DEBUG || FUNCTION_TRACER
+
 endmenu