2 files changed, 8 insertions, 0 deletions

diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 5bed8be34b..b4437ce0f9 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -1270,6 +1270,8 @@ source "drivers/Kconfig"
 
 source "fs/Kconfig"
 
+source "kernel/Kconfig.instrumentation"
+
 source "arch/i386/Kconfig.debug"
 
 source "security/Kconfig"
diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index b81cb64d48..f5b9a37def 100644
--- a/arch/i386/Makefile
+++ b/arch/i386/Makefile
@@ -20,6 +20,12 @@
 # Fill in SRCARCH
 SRCARCH := x86
 
+# BITS is used as extension for files which are available in a 32 bit
+# and a 64 bit version to simplify shared Makefiles.
+# e.g.: obj-y += foo_$(BITS).o
+BITS := 32
+export BITS
+
 HAS_BIARCH      := $(call cc-option-yn, -m32)
 ifeq ($(HAS_BIARCH),y)
 AS              := $(AS) --32