add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/tools/usb/Makefile
..
..
@@ -1,14 +1,51 @@
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 # SPDX-License-Identifier: GPL-2.0
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 # Makefile for USB tools
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+include ../scripts/Makefile.include
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-PTHREAD_LIBS = -lpthread
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-WARNINGS = -Wall -Wextra
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-CFLAGS = $(WARNINGS) -g -I../include
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-LDFLAGS = $(PTHREAD_LIBS)
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+bindir ?= /usr/bin
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-all: testusb ffs-test
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-%: %.c
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-	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
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+ifeq ($(srctree),)
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+srctree := $(patsubst %/,%,$(dir $(CURDIR)))
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+srctree := $(patsubst %/,%,$(dir $(srctree)))
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+endif
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+
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+# Do not use make's built-in rules
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+# (this improves performance and avoids hard-to-debug behaviour);
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+MAKEFLAGS += -r
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+
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+override CFLAGS += -O2 -Wall -Wextra -g -D_GNU_SOURCE -I$(OUTPUT)include -I$(srctree)/tools/include
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+override LDFLAGS += -lpthread
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+
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+ALL_TARGETS := testusb ffs-test
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+ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS))
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+
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+all: $(ALL_PROGRAMS)
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+
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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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+TESTUSB_IN := $(OUTPUT)testusb-in.o
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+$(TESTUSB_IN): FORCE
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+	$(Q)$(MAKE) $(build)=testusb
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+$(OUTPUT)testusb: $(TESTUSB_IN)
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+	$(QUIET_LINK)$(CC) $(CFLAGS) $< -o $@ $(LDFLAGS)
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+
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+FFS_TEST_IN := $(OUTPUT)ffs-test-in.o
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+$(FFS_TEST_IN): FORCE
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+	$(Q)$(MAKE) $(build)=ffs-test
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+$(OUTPUT)ffs-test: $(FFS_TEST_IN)
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+	$(QUIET_LINK)$(CC) $(CFLAGS) $< -o $@ $(LDFLAGS)
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 clean:
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-	$(RM) testusb ffs-test
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+	rm -f $(ALL_PROGRAMS)
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+	find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete -o -name '\.*.o.cmd' -delete
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+
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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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+
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+FORCE:
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+
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+.PHONY: all install clean FORCE prepare