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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2017-07-26 12:59:29 +0300
committerMark Brown <broonie@kernel.org>2017-07-26 14:25:23 +0300
commitf325b73dc4db9d6c2393805b4f468e82d730764e (patch)
tree93a087d81bf2ed839b4e4d10aba63127ba976162 /tools/spi/Makefile
parent5771a8c08880cdca3bfb4a3fc6d309d6bba20877 (diff)
downloadlinux-f325b73dc4db9d6c2393805b4f468e82d730764e.tar.xz
spi: tools: move to tools buildsystem
There is a nice buildsystem dedicated for userspace tools in Linux kernel tree. Switch spi target to be built by it. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'tools/spi/Makefile')
-rw-r--r--tools/spi/Makefile56
1 files changed, 54 insertions, 2 deletions
diff --git a/tools/spi/Makefile b/tools/spi/Makefile
index 3815b18ba070..aa9517260715 100644
--- a/tools/spi/Makefile
+++ b/tools/spi/Makefile
@@ -1,6 +1,58 @@
+include ../scripts/Makefile.include
+
+ifeq ($(srctree),)
+srctree := $(patsubst %/,%,$(dir $(CURDIR)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+endif
+
+# Do not use make's built-in rules
+# (this improves performance and avoids hard-to-debug behaviour);
+MAKEFLAGS += -r
+
CC = $(CROSS_COMPILE)gcc
+LD = $(CROSS_COMPILE)ld
+CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include
+
+ALL_TARGETS := spidev_test spidev_fdx
+ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS))
+
+all: $(ALL_PROGRAMS)
+
+export srctree OUTPUT CC LD CFLAGS
+include $(srctree)/tools/build/Makefile.include
-all: spidev_test spidev_fdx
+#
+# We need the following to be outside of kernel tree
+#
+$(OUTPUT)include/linux/spi/spidev.h: ../../include/uapi/linux/spi/spidev.h
+ mkdir -p $(OUTPUT)include/linux/spi 2>&1 || true
+ ln -sf $(CURDIR)/../../include/uapi/linux/spi/spidev.h $@
+
+prepare: $(OUTPUT)include/linux/spi/spidev.h
+
+#
+# spidev_test
+#
+SPIDEV_TEST_IN := $(OUTPUT)spidev_test-in.o
+$(SPIDEV_TEST_IN): prepare FORCE
+ $(Q)$(MAKE) $(build)=spidev_test
+$(OUTPUT)spidev_test: $(SPIDEV_TEST_IN)
+ $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
+
+#
+# spidev_fdx
+#
+SPIDEV_FDX_IN := $(OUTPUT)spidev_fdx-in.o
+$(SPIDEV_FDX_IN): prepare FORCE
+ $(Q)$(MAKE) $(build)=spidev_fdx
+$(OUTPUT)spidev_fdx: $(SPIDEV_FDX_IN)
+ $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
clean:
- $(RM) spidev_test spidev_fdx
+ rm -f $(ALL_PROGRAMS)
+ rm -f $(OUTPUT)include/linux/spi/spidev.h
+ find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
+
+FORCE:
+
+.PHONY: all clean FORCE prepare