xref: /linux-6.15/tools/tracing/rtla/Makefile (revision e34293dd)
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
27RTLA		:= $(OUTPUT)rtla
28RTLA_IN		:= $(RTLA)-in.o
29
30VERSION		:= $(shell sh -c "make -sC ../../.. kernelversion | grep -v make")
31DOCSRC		:= ../../../Documentation/tools/rtla/
32
33FEATURE_TESTS	:= libtraceevent
34FEATURE_TESTS	+= libtracefs
35FEATURE_TESTS	+= libcpupower
36FEATURE_TESTS	+= libbpf
37FEATURE_TESTS	+= clang-bpf-co-re
38FEATURE_TESTS	+= bpftool-skeletons
39FEATURE_DISPLAY	:= libtraceevent
40FEATURE_DISPLAY	+= libtracefs
41FEATURE_DISPLAY	+= libcpupower
42FEATURE_DISPLAY	+= libbpf
43FEATURE_DISPLAY	+= clang-bpf-co-re
44FEATURE_DISPLAY	+= bpftool-skeletons
45
46ifeq ($(V),1)
47  Q		=
48else
49  Q		= @
50endif
51
52all: $(RTLA)
53
54include $(srctree)/tools/build/Makefile.include
55include Makefile.rtla
56
57# check for dependencies only on required targets
58NON_CONFIG_TARGETS := clean install tarball doc doc_clean doc_install
59
60config		:= 1
61ifdef MAKECMDGOALS
62ifeq ($(filter-out $(NON_CONFIG_TARGETS),$(MAKECMDGOALS)),)
63 config		:= 0
64endif
65endif
66
67ifeq ($(config),1)
68  include $(srctree)/tools/build/Makefile.feature
69  include Makefile.config
70endif
71
72CFLAGS		+= $(INCLUDES) $(LIB_INCLUDES)
73
74export CFLAGS OUTPUT srctree
75
76ifeq ($(BUILD_BPF_SKEL),1)
77src/timerlat.bpf.o: src/timerlat.bpf.c
78	$(QUIET_CLANG)$(CLANG) -g -O2 -target bpf -c $(filter %.c,$^) -o $@
79
80src/timerlat.skel.h: src/timerlat.bpf.o
81	$(QUIET_GENSKEL)$(BPFTOOL) gen skeleton $< > $@
82else
83src/timerlat.skel.h:
84	$(Q)echo '/* BPF skeleton is disabled */' > src/timerlat.skel.h
85endif
86
87$(RTLA): $(RTLA_IN)
88	$(QUIET_LINK)$(CC) $(LDFLAGS) -o $(RTLA) $(RTLA_IN) $(EXTLIBS)
89
90static: $(RTLA_IN)
91	$(eval LDFLAGS += -static)
92	$(QUIET_LINK)$(CC) -static $(LDFLAGS) -o $(RTLA)-static $(RTLA_IN)  $(EXTLIBS)
93
94rtla.%: fixdep FORCE
95	make -f $(srctree)/tools/build/Makefile.build dir=. $@
96
97$(RTLA_IN): fixdep FORCE src/timerlat.skel.h
98	make $(build)=rtla
99
100clean: doc_clean fixdep-clean
101	$(call QUIET_CLEAN, rtla)
102	$(Q)find . -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
103	$(Q)rm -f rtla rtla-static fixdep FEATURE-DUMP rtla-*
104	$(Q)rm -rf feature
105	$(Q)rm -f src/timerlat.bpf.o src/timerlat.skel.h
106check: $(RTLA)
107	RTLA=$(RTLA) prove -o -f tests/
108.PHONY: FORCE clean check
109