linux/tools/gpio/Makefile
Jiri Olsa 4ccc98a489 tools gpio: Allow overriding CFLAGS
So that the user can specify outside CFLAGS values.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Hartmut Knaack <knaack.h@gmx.de> <knaack.h@gmx.de>
Cc: Herton Krzesinski <herton@redhat.com>
Cc: Jonathan Cameron <jic23@kernel.org>
Cc: Lars-Peter Clausen <lars@metafoo.de>
Link: http://lkml.kernel.org/r/20181212102537.25902-7-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2018-12-28 16:33:08 -03:00

75 lines
1.8 KiB
Makefile

# SPDX-License-Identifier: GPL-2.0
include ../scripts/Makefile.include
bindir ?= /usr/bin
ifeq ($(srctree),)
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
endif
# Do not use make's built-in rules
# (this improves performance and avoids hard-to-debug behaviour);
MAKEFLAGS += -r
override CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include
ALL_TARGETS := lsgpio gpio-hammer gpio-event-mon
ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS))
all: $(ALL_PROGRAMS)
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 $@
clean:
rm -f $(ALL_PROGRAMS)
rm -f $(OUTPUT)include/linux/gpio.h
find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete
install: $(ALL_PROGRAMS)
install -d -m 755 $(DESTDIR)$(bindir); \
for program in $(ALL_PROGRAMS); do \
install $$program $(DESTDIR)$(bindir); \
done
FORCE:
.PHONY: all install clean FORCE prepare