1 files changed, 27 insertions, 9 deletions

diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index 8fb31ab2c02..48479e014da 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -30,8 +30,35 @@ config EARLY_PRINTK
           when the kernel may crash or hang before the serial console is
           initialised. If unsure, say N.
 
+config DEBUG_STACKOVERFLOW
+        bool "Check for stack overflows"
+        depends on DEBUG_KERNEL
+        help
+          This option will cause messages to be printed if free stack space
+          drops below a certain limit.
+
+config DEBUG_STACK_USAGE
+        bool "Stack utilization instrumentation"
+        depends on DEBUG_KERNEL
+        help
+          Enables the display of the minimum amount of free stack which each
+          task has ever had available in the sysrq-T and sysrq-P debug output.
+
+          This option will slow down process creation somewhat.
+
+config 4KSTACKS
+        bool "Use 4Kb for kernel stacks instead of 8Kb"
+        depends on DEBUG_KERNEL
+        help
+          If you say Y here the kernel will use a 4Kb stacksize for the
+          kernel stack attached to each process/thread. This facilitates
+          running more threads on a system and also reduces the pressure
+          on the VM subsystem for higher order allocations. This option
+          will also use IRQ stacks to compensate for the reduced stackspace.
+
 config KGDB
         bool "Include KGDB kernel debugger"
+        select FRAME_POINTER
         help
           Include in-kernel hooks for kgdb, the Linux kernel source level
           debugger.  See <http://kgdb.sourceforge.net/> for more information.
@@ -112,13 +139,4 @@ endchoice
 
 endmenu
 
-config FRAME_POINTER
-        bool "Compile the kernel with frame pointers"
-        default y if KGDB
-        help
-          If you say Y here the resulting kernel image will be slightly larger
-          and slower, but it will give very useful debugging information.
-          If you don't debug the kernel, you can say N, but we may not be able
-          to solve problems without frame pointers.
-
 endmenu