1# SPDX-License-Identifier: GPL-2.0-only
2
3ifeq ($(srctree),)
4  srctree	:= $(patsubst %/,%,$(dir $(CURDIR)))
5  srctree	:= $(patsubst %/,%,$(dir $(srctree)))
6  srctree	:= $(patsubst %/,%,$(dir $(srctree)))
7endif
8
9include $(srctree)/tools/scripts/Makefile.include
10
11# O is an alias for OUTPUT
12OUTPUT		:= $(O)
13
14ifeq ($(OUTPUT),)
15  OUTPUT	:= $(CURDIR)
16else
17  # subdir is used by the ../Makefile in $(call descend,)
18  ifneq ($(subdir),)
19    OUTPUT	:= $(OUTPUT)/$(subdir)
20  endif
21endif
22
23ifneq ($(patsubst %/,,$(lastword $(OUTPUT))),)
24  OUTPUT	:= $(OUTPUT)/
25endif
26
27LATENCY-COLLECTOR	:= $(OUTPUT)latency-collector
28LATENCY-COLLECTOR_IN	:= $(LATENCY-COLLECTOR)-in.o
29
30export CC	:= gcc
31export LD	:= ld
32export AR	:= ar
33export PKG_CONFIG := pkg-config
34
35FEATURE_TESTS	:= libtraceevent
36FEATURE_TESTS	+= libtracefs
37FEATURE_DISPLAY	:= libtraceevent
38FEATURE_DISPLAY	+= libtracefs
39
40all: $(LATENCY-COLLECTOR)
41
42include $(srctree)/tools/build/Makefile.include
43
44# check for dependencies only on required targets
45NON_CONFIG_TARGETS := clean install
46
47config		:= 1
48ifdef MAKECMDGOALS
49ifeq ($(filter-out $(NON_CONFIG_TARGETS),$(MAKECMDGOALS)),)
50 config		:= 0
51endif
52endif
53
54ifeq ($(config),1)
55  include $(srctree)/tools/build/Makefile.feature
56  include Makefile.config
57endif
58
59CFLAGS		+= $(INCLUDES) $(LIB_INCLUDES)
60
61export CFLAGS OUTPUT srctree
62
63$(LATENCY-COLLECTOR): $(LATENCY-COLLECTOR_IN)
64	$(QUIET_LINK)$(CC) $(LDFLAGS) -o $(LATENCY-COLLECTOR) $(LATENCY-COLLECTOR_IN) $(EXTLIBS)
65
66latency-collector.%: fixdep FORCE
67	make -f $(srctree)/tools/build/Makefile.build dir=. $@
68
69$(LATENCY-COLLECTOR_IN): fixdep FORCE
70	make $(build)=latency-collector
71
72INSTALL		:= install
73MKDIR		:= mkdir
74STRIP		:= strip
75BINDIR		:= /usr/bin
76
77install:
78	@$(MKDIR) -p $(DESTDIR)$(BINDIR)
79	$(call QUIET_INSTALL,latency-collector)$(INSTALL) $(LATENCY-COLLECTOR) -m 755 $(DESTDIR)$(BINDIR)
80	@$(STRIP) $(DESTDIR)$(BINDIR)/latency-collector
81
82clean:
83	$(call QUIET_CLEAN, latency-collector)
84	$(Q)find . -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
85	$(Q)@rm -f latency-collector fixdep FEATURE-DUMP
86	$(Q)rm -rf feature
87.PHONY: FORCE clean install
88