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
27RV		:= $(OUTPUT)rv
28RV_IN		:= $(RV)-in.o
29
30VERSION		:= $(shell sh -c "make -sC ../../.. kernelversion | grep -v make")
31DOCSRC		:= ../../../Documentation/tools/rv/
32
33FEATURE_TESTS	:= libtraceevent
34FEATURE_TESTS	+= libtracefs
35FEATURE_DISPLAY	:= libtraceevent
36FEATURE_DISPLAY	+= libtracefs
37
38ifeq ($(V),1)
39  Q		=
40else
41  Q		= @
42endif
43
44all: $(RV)
45
46include $(srctree)/tools/build/Makefile.include
47include Makefile.rv
48
49# check for dependencies only on required targets
50NON_CONFIG_TARGETS := clean install doc doc_clean doc_install
51
52config		:= 1
53ifdef MAKECMDGOALS
54  ifeq ($(filter-out $(NON_CONFIG_TARGETS),$(MAKECMDGOALS)),)
55  config	:= 0
56endif
57endif
58
59ifeq ($(config),1)
60  include $(srctree)/tools/build/Makefile.feature
61  include Makefile.config
62endif
63
64CFLAGS		+= $(INCLUDES) $(LIB_INCLUDES)
65
66export CFLAGS OUTPUT srctree
67
68$(RV): $(RV_IN)
69	$(QUIET_LINK)$(CC) $(LDFLAGS) -o $(RV) $(RV_IN) $(EXTLIBS)
70
71static: $(RV_IN)
72	$(eval LDFLAGS += -static)
73	$(QUIET_LINK)$(CC) $(LDFLAGS) -o $(RV)-static $(RV_IN) $(EXTLIBS)
74
75rv.%: fixdep FORCE
76	make -f $(srctree)/tools/build/Makefile.build dir=. $@
77
78$(RV_IN): fixdep FORCE
79	make $(build)=rv
80
81clean: doc_clean fixdep-clean
82	$(call QUIET_CLEAN, rv)
83	$(Q)find . -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
84	$(Q)rm -f rv rv-static fixdep FEATURE-DUMP rv-*
85	$(Q)rm -rf feature
86
87.PHONY: FORCE clean