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https://github.com/edk2-porting/linux-next.git
synced 2024-12-18 18:23:53 +08:00
e19b7cee02
make already provides the current working directory in a variable, so make use of it instead of forking a shell. Also replace usage of PWD by CURDIR. PWD is provided by most shells, but not all, so this makes the build system more robust. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Michal Marek <mmarek@suse.com>
76 lines
1.8 KiB
Makefile
76 lines
1.8 KiB
Makefile
include ../scripts/Makefile.include
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bindir ?= /usr/bin
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ifeq ($(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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CC = $(CROSS_COMPILE)gcc
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LD = $(CROSS_COMPILE)ld
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CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include
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ALL_TARGETS := lsgpio gpio-hammer gpio-event-mon
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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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#
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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
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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
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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
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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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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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