tests: footprint: set ARCH correctly and provide defaults

Change-Id: I57beaf70d3cf8f1ef4267f002d2e72df22b918b8
Signed-off-by: Anas Nashif <anas.nashif@intel.com>

tests/legacy/benchmark/footprint/microkernel/Makefile

@@ -2,6 +2,9 @@
 TEST ?= min
 BOARD ?= qemu_x86
 
+
+ARCH = $(notdir $(subst /$(BOARD),,$(wildcard $(ZEPHYR_BASE)/boards/*/$(BOARD))))
+
 MDEF_FILE = micro_${TEST}.mdef
 CONF_FILE = $(or $(wildcard $(TEST)/$(BOARD).conf), \
                  $(wildcard $(TEST)/$(ARCH).conf))

tests/legacy/benchmark/footprint/nanokernel/Makefile

@@ -1,9 +1,15 @@
 # default configuration
 TEST ?= min
 
+ARCH = $(notdir $(subst /$(BOARD),,$(wildcard $(ZEPHYR_BASE)/boards/*/$(BOARD))))
+
 BOARD ?= qemu_x86
-CONF_FILE = $(or $(wildcard $(TEST)/$(BOARD).conf), \
+CONF_FILE ?= $(or $(wildcard $(TEST)/$(BOARD).conf), \
                  $(wildcard $(TEST)/$(ARCH).conf))
+ifeq ($(CONF_FILE),)
+CONF_FILE = $(TEST)/default.conf
+endif
+
 ifeq ($(TEST),float)
 CFLAGS += -DTEST_max
 else

tests/legacy/benchmark/footprint/nanokernel/max/default.conf

@@ -0,0 +1,4 @@
+CONFIG_PRINTK=y
+CONFIG_STDOUT_CONSOLE=y
+CONFIG_IDT_NUM_VECTORS=256
+CONFIG_LEGACY_KERNEL=y

tests/legacy/benchmark/footprint/nanokernel/min/default.conf

@@ -0,0 +1,10 @@
+CONFIG_ISR_STACK_SIZE=128
+CONFIG_MAIN_STACK_SIZE=128
+CONFIG_SYS_CLOCK_TICKS_PER_SEC=0
+CONFIG_PRINTK=n
+CONFIG_CONSOLE=n
+CONFIG_SERIAL=n
+CONFIG_IPM=n
+CONFIG_GPIO=n
+CONFIG_ERRNO=n
+CONFIG_LEGACY_KERNEL=y

tests/legacy/benchmark/footprint/nanokernel/reg/default.conf

@@ -0,0 +1,4 @@
+CONFIG_ISR_STACK_SIZE=512
+CONFIG_MAIN_STACK_SIZE=512
+CONFIG_PRINTK=y
+CONFIG_LEGACY_KERNEL=y