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91 lines
2.4 KiB
91 lines
2.4 KiB
# SPDX-License-Identifier: GPL-2.0 |
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include ../scripts/Makefile.include |
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bindir ?= /usr/bin |
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# This will work when gpio is built in tools env. where srctree |
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# isn't set and when invoked from selftests build, where srctree |
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# is set to ".". building_out_of_srctree is undefined for in srctree |
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# builds |
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ifndef building_out_of_srctree |
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srctree := $(patsubst %/,%,$(dir $(CURDIR))) |
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srctree := $(patsubst %/,%,$(dir $(srctree))) |
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endif |
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# Do not use make's built-in rules |
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# (this improves performance and avoids hard-to-debug behaviour); |
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MAKEFLAGS += -r |
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override CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include |
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ALL_TARGETS := lsgpio gpio-hammer gpio-event-mon gpio-watch |
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ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS)) |
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all: $(ALL_PROGRAMS) |
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export srctree OUTPUT CC LD CFLAGS |
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include $(srctree)/tools/build/Makefile.include |
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# |
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# We need the following to be outside of kernel tree |
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# |
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$(OUTPUT)include/linux/gpio.h: ../../include/uapi/linux/gpio.h |
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mkdir -p $(OUTPUT)include/linux 2>&1 || true |
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ln -sf $(CURDIR)/../../include/uapi/linux/gpio.h $@ |
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prepare: $(OUTPUT)include/linux/gpio.h |
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GPIO_UTILS_IN := $(OUTPUT)gpio-utils-in.o |
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$(GPIO_UTILS_IN): prepare FORCE |
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$(Q)$(MAKE) $(build)=gpio-utils |
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# |
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# lsgpio |
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# |
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LSGPIO_IN := $(OUTPUT)lsgpio-in.o |
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$(LSGPIO_IN): prepare FORCE $(OUTPUT)gpio-utils-in.o |
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$(Q)$(MAKE) $(build)=lsgpio |
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$(OUTPUT)lsgpio: $(LSGPIO_IN) |
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$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ |
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# |
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# gpio-hammer |
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# |
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GPIO_HAMMER_IN := $(OUTPUT)gpio-hammer-in.o |
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$(GPIO_HAMMER_IN): prepare FORCE $(OUTPUT)gpio-utils-in.o |
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$(Q)$(MAKE) $(build)=gpio-hammer |
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$(OUTPUT)gpio-hammer: $(GPIO_HAMMER_IN) |
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$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ |
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# |
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# gpio-event-mon |
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# |
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GPIO_EVENT_MON_IN := $(OUTPUT)gpio-event-mon-in.o |
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$(GPIO_EVENT_MON_IN): prepare FORCE $(OUTPUT)gpio-utils-in.o |
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$(Q)$(MAKE) $(build)=gpio-event-mon |
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$(OUTPUT)gpio-event-mon: $(GPIO_EVENT_MON_IN) |
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$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ |
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# |
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# gpio-watch |
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# |
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GPIO_WATCH_IN := $(OUTPUT)gpio-watch-in.o |
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$(GPIO_WATCH_IN): prepare FORCE |
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$(Q)$(MAKE) $(build)=gpio-watch |
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$(OUTPUT)gpio-watch: $(GPIO_WATCH_IN) |
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$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@ |
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clean: |
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rm -f $(ALL_PROGRAMS) |
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rm -f $(OUTPUT)include/linux/gpio.h |
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find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete |
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install: $(ALL_PROGRAMS) |
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install -d -m 755 $(DESTDIR)$(bindir); \ |
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for program in $(ALL_PROGRAMS); do \ |
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install $$program $(DESTDIR)$(bindir); \ |
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done |
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FORCE: |
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.PHONY: all install clean FORCE prepare
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