Blackfin arch: Add basic irq stack checking for Blackfin

Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

1 files changed, 16 insertions, 0 deletions

diff --git a/arch/blackfin/Kconfig.debug b/arch/blackfin/Kconfig.debug
index 3ad25983ec97..bfd712ab125c 100644
--- a/arch/blackfin/Kconfig.debug
+++ b/arch/blackfin/Kconfig.debug
@@ -2,6 +2,22 @@ menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
 
+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 "Enable 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 output.
+
+          This option will slow down process creation somewhat.
+
 config HAVE_ARCH_KGDB
        def_bool y