kernel_optimize_test/tools/gpio/Makefile
Laura Abbott 0161a94e2d tools: gpio: Correctly add make dependencies for gpio_utils
gpio tools fail to build correctly with make parallelization:

$ make -s -j24
ld: gpio-utils.o: file not recognized: file truncated
make[1]: *** [/home/labbott/linux_upstream/tools/build/Makefile.build:145: lsgpio-in.o] Error 1
make: *** [Makefile:43: lsgpio-in.o] Error 2
make: *** Waiting for unfinished jobs....

This is because gpio-utils.o is used across multiple targets.
Fix this by making gpio-utios.o a proper dependency.

Cc: <stable@vger.kernel.org>
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2019-11-13 13:46:04 +01:00

83 lines
2.2 KiB
Makefile

# SPDX-License-Identifier: GPL-2.0
include ../scripts/Makefile.include
bindir ?= /usr/bin
# This will work when gpio is built in tools env. where srctree
# isn't set and when invoked from selftests build, where srctree
# is set to ".". building_out_of_srctree is undefined for in srctree
# builds
ifndef building_out_of_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
GPIO_UTILS_IN := $(output)gpio-utils-in.o
$(GPIO_UTILS_IN): prepare FORCE
$(Q)$(MAKE) $(build)=gpio-utils
#
# lsgpio
#
LSGPIO_IN := $(OUTPUT)lsgpio-in.o
$(LSGPIO_IN): prepare FORCE $(OUTPUT)gpio-utils-in.o
$(Q)$(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 $(OUTPUT)gpio-utils-in.o
$(Q)$(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 $(OUTPUT)gpio-utils-in.o
$(Q)$(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