Support imx6q-sabrelite userland timer driver.

Ubiquitous/XiZi_AIoT/services/lib/serial/Makefile

@@ -0,0 +1,28 @@
+ifeq ($(BOARD), imx6q-sabrelite)
+toolchain ?= arm-none-eabi-
+endif
+ifeq ($(BOARD), zynq7000-zc702)
+toolchain ?= arm-xilinx-eabi-
+endif
+cc = ${toolchain}gcc
+ld = ${toolchain}g++
+objdump = ${toolchain}objdump
+user_ldflags = -N -Ttext 0
+
+cflags = -std=c11 -march=armv7-a -mtune=cortex-a9 -nostdlib -nodefaultlibs -mfloat-abi=soft -fno-pic -static -fno-builtin -fno-strict-aliasing -Wall -ggdb -Wno-unused -Werror -fno-omit-frame-pointer -fno-stack-protector -fno-pie 
+c_useropts = -O0
+
+INC_DIR = 	-I$(KERNEL_ROOT)/services/app \
+			-I$(KERNEL_ROOT)/services/fs/libfs \
+		  	-I$(KERNEL_ROOT)/services/boards/$(BOARD) \
+		  	-I$(KERNEL_ROOT)/services/lib/memory \
+			-I$(KERNEL_ROOT)/services/lib/serial \
+			-I$(KERNEL_ROOT)/services/lib/usyscall \
+		  	-I$(KERNEL_ROOT)/services/lib/ipc 
+
+all: printf.o
+	@mv $^ $(KERNEL_ROOT)/services/app
+
+%.o: %.c
+	@echo "cc $^"
+	@${cc} ${cflags} ${c_useropts} ${INC_DIR} -o $@ -c $^