projects/linux·blob master · refs

55 lines · 1.6 KiB

1# SPDX-License-Identifier: GPL-2.0
2include ../scripts/Makefile.include
3
4bindir ?= /usr/bin
5
6# This will work when dma is built in tools env. where srctree
7# isn't set and when invoked from selftests build, where srctree
8# is set to ".". building_out_of_srctree is undefined for in srctree
9# builds
10ifndef building_out_of_srctree
11srctree := $(patsubst %/,%,$(dir $(CURDIR)))
12srctree := $(patsubst %/,%,$(dir $(srctree)))
13endif
14
15# Do not use make's built-in rules
16# (this improves performance and avoids hard-to-debug behaviour);
17MAKEFLAGS += -r
18
19override CFLAGS += -O2 -Wall -g -D_GNU_SOURCE -I$(OUTPUT)include
20
21ALL_TARGETS := dma_map_benchmark
22ALL_PROGRAMS := $(patsubst %,$(OUTPUT)%,$(ALL_TARGETS))
23
24all: $(ALL_PROGRAMS)
25
26export srctree OUTPUT CC LD CFLAGS
27include $(srctree)/tools/build/Makefile.include
28
29#
30# We need the following to be outside of kernel tree
31#
32$(OUTPUT)include/linux/map_benchmark.h: ../../include/uapi/linux/map_benchmark.h
33 mkdir -p $(OUTPUT)include/linux 2>&1 || true
34 ln -sf $(CURDIR)/../../include/uapi/linux/map_benchmark.h $@
35
36prepare: $(OUTPUT)include/linux/map_benchmark.h
37
38FORCE:
39
40DMA_MAP_BENCHMARK = dma_map_benchmark
41$(DMA_MAP_BENCHMARK): prepare FORCE
42 $(CC) $(CFLAGS) $(DMA_MAP_BENCHMARK).c -o $(DMA_MAP_BENCHMARK)
43
44clean:
45 rm -f $(ALL_PROGRAMS)
46 rm -rf $(OUTPUT)include
47 find $(or $(OUTPUT),.) -name '*.o' -delete -o -name '\.*.d' -delete -o -name '\.*.cmd' -delete
48
49install: $(ALL_PROGRAMS)
50 install -d -m 755 $(DESTDIR)$(bindir); \
51 for program in $(ALL_PROGRAMS); do \
52 install $$program $(DESTDIR)$(bindir); \
53 done
54
55.PHONY: all install clean prepare FORCE