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tools/gpio: move to tools buildsystem

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There is a nice buildsystem dedicated for userspace tools in Linux kernel tree.
Switch gpio target to be built by it.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Andy Shevchenko 2016-06-19 23:41:11 +03:00 committed by Linus Walleij
parent dd3b204af1
commit 8674cea84d
2 changed files with 64 additions and 8 deletions
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3
tools/gpio/Build Normal file
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@ -0,0 +1,3 @@
lsgpio-y += lsgpio.o gpio-utils.o
gpio-hammer-y += gpio-hammer.o gpio-utils.o
gpio-event-mon-y += gpio-event-mon.o gpio-utils.o

69
tools/gpio/Makefile
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@ -1,14 +1,67 @@
include ../scripts/Makefile.include
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(shell pwd)))
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
CFLAGS += -O2 -Wall -g -D_GNU_SOURCE
LD = $(CROSS_COMPILE)ld
CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include
all: lsgpio gpio-hammer gpio-event-mon
ALL_TARGETS := lsgpio gpio-hammer gpio-event-mon
ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS))
lsgpio: lsgpio.o gpio-utils.o
gpio-hammer: gpio-hammer.o gpio-utils.o
gpio-event-mon: gpio-event-mon.o gpio-utils.o
all: $(ALL_PROGRAMS)
%.o: %.c gpio-utils.h
export srctree OUTPUT CC LD CFLAGS
include $(srctree)/tools/build/Makefile.include
#
# We need the following to be outside of kernel tree
#
$(OUTPUT)include/linux/gpio.h: ../../include/uapi/linux/gpio.h
mkdir -p $(OUTPUT)include/linux 2>&1 || true
ln -sf $(CURDIR)/../../include/uapi/linux/gpio.h $@
prepare: $(OUTPUT)include/linux/gpio.h
#
# lsgpio
#
LSGPIO_IN := $(OUTPUT)lsgpio-in.o
$(LSGPIO_IN): prepare FORCE
$(Q)$(MAKE) $(build)=lsgpio
$(OUTPUT)lsgpio: $(LSGPIO_IN)
$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
#
# gpio-hammer
#
GPIO_HAMMER_IN := $(OUTPUT)gpio-hammer-in.o
$(GPIO_HAMMER_IN): prepare FORCE
$(Q)$(MAKE) $(build)=gpio-hammer
$(OUTPUT)gpio-hammer: $(GPIO_HAMMER_IN)
$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
#
# gpio-event-mon
#
GPIO_EVENT_MON_IN := $(OUTPUT)gpio-event-mon-in.o
$(GPIO_EVENT_MON_IN): prepare FORCE
$(Q)$(MAKE) $(build)=gpio-event-mon
$(OUTPUT)gpio-event-mon: $(GPIO_EVENT_MON_IN)
$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
.PHONY: clean
clean:
rm -f *.o lsgpio gpio-hammer gpio-event-mon
rm -f $(ALL_PROGRAMS)
rm -f $(OUTPUT)include/linux/gpio.h
find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
FORCE:
.PHONY: all clean FORCE prepare