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1NAME := rtla
2# Follow the kernel version
3VERSION := $(shell cat VERSION 2> /dev/null || make -sC ../../.. kernelversion | grep -v make)
4
5# From libtracefs:
6# Makefiles suck: This macro sets a default value of $(2) for the
7# variable named by $(1), unless the variable has been set by
8# environment or command line. This is necessary for CC and AR
9# because make sets default values, so the simpler ?= approach
10# won't work as expected.
11define allow-override
12 $(if $(or $(findstring environment,$(origin $(1))),\
13 $(findstring command line,$(origin $(1)))),,\
14 $(eval $(1) = $(2)))
15endef
16
17# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.
18$(call allow-override,CC,$(CROSS_COMPILE)gcc)
19$(call allow-override,AR,$(CROSS_COMPILE)ar)
20$(call allow-override,STRIP,$(CROSS_COMPILE)strip)
21$(call allow-override,PKG_CONFIG,pkg-config)
22$(call allow-override,LD_SO_CONF_PATH,/etc/ld.so.conf.d/)
23$(call allow-override,LDCONFIG,ldconfig)
24
25INSTALL = install
26MKDIR = mkdir
27FOPTS := -flto=auto -ffat-lto-objects -fexceptions -fstack-protector-strong \
28 -fasynchronous-unwind-tables -fstack-clash-protection
29WOPTS := -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -Wno-maybe-uninitialized
30
31TRACEFS_HEADERS := $$($(PKG_CONFIG) --cflags libtracefs)
32
33CFLAGS := -O -g -DVERSION=\"$(VERSION)\" $(FOPTS) $(MOPTS) $(WOPTS) $(TRACEFS_HEADERS) $(EXTRA_CFLAGS)
34LDFLAGS := -ggdb $(EXTRA_LDFLAGS)
35LIBS := $$($(PKG_CONFIG) --libs libtracefs)
36
37SRC := $(wildcard src/*.c)
38HDR := $(wildcard src/*.h)
39OBJ := $(SRC:.c=.o)
40DIRS := src
41FILES := Makefile README.txt
42CEXT := bz2
43TARBALL := $(NAME)-$(VERSION).tar.$(CEXT)
44TAROPTS := -cvjf $(TARBALL)
45BINDIR := /usr/bin
46DATADIR := /usr/share
47DOCDIR := $(DATADIR)/doc
48MANDIR := $(DATADIR)/man
49LICDIR := $(DATADIR)/licenses
50SRCTREE := $(or $(BUILD_SRC),$(CURDIR))
51
52# If running from the tarball, man pages are stored in the Documentation
53# dir. If running from the kernel source, man pages are stored in
54# Documentation/tools/rtla/.
55ifneq ($(wildcard Documentation/.*),)
56DOCSRC = Documentation
57else
58DOCSRC = $(SRCTREE)/../../../Documentation/tools/rtla/
59endif
60
61LIBTRACEEVENT_MIN_VERSION = 1.5
62LIBTRACEFS_MIN_VERSION = 1.3
63
64.PHONY: all warnings show_warnings
65all: warnings rtla
66
67TEST_LIBTRACEEVENT = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEEVENT_MIN_VERSION) libtraceevent > /dev/null 2>&1 || echo n")
68ifeq ("$(TEST_LIBTRACEEVENT)", "n")
69WARNINGS = show_warnings
70MISSING_LIBS += echo "** libtraceevent version $(LIBTRACEEVENT_MIN_VERSION) or higher";
71MISSING_PACKAGES += "libtraceevent-devel"
72MISSING_SOURCE += echo "** https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git/ ";
73endif
74
75TEST_LIBTRACEFS = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEFS_MIN_VERSION) libtracefs > /dev/null 2>&1 || echo n")
76ifeq ("$(TEST_LIBTRACEFS)", "n")
77WARNINGS = show_warnings
78MISSING_LIBS += echo "** libtracefs version $(LIBTRACEFS_MIN_VERSION) or higher";
79MISSING_PACKAGES += "libtracefs-devel"
80MISSING_SOURCE += echo "** https://git.kernel.org/pub/scm/libs/libtrace/libtracefs.git/ ";
81endif
82
83define show_dependencies
84 @echo "********************************************"; \
85 echo "** NOTICE: Failed build dependencies"; \
86 echo "**"; \
87 echo "** Required Libraries:"; \
88 $(MISSING_LIBS) \
89 echo "**"; \
90 echo "** Consider installing the latest libtracefs from your"; \
91 echo "** distribution, e.g., 'dnf install $(MISSING_PACKAGES)' on Fedora,"; \
92 echo "** or from source:"; \
93 echo "**"; \
94 $(MISSING_SOURCE) \
95 echo "**"; \
96 echo "********************************************"
97endef
98
99show_warnings:
100 $(call show_dependencies);
101
102ifneq ("$(WARNINGS)", "")
103ERROR_OUT = $(error Please add the necessary dependencies)
104
105warnings: $(WARNINGS)
106 $(ERROR_OUT)
107endif
108
109rtla: $(OBJ)
110 $(CC) -o rtla $(LDFLAGS) $(OBJ) $(LIBS)
111
112static: $(OBJ)
113 $(CC) -o rtla-static $(LDFLAGS) --static $(OBJ) $(LIBS) -lpthread -ldl
114
115.PHONY: install
116install: doc_install
117 $(MKDIR) -p $(DESTDIR)$(BINDIR)
118 $(INSTALL) rtla -m 755 $(DESTDIR)$(BINDIR)
119 $(STRIP) $(DESTDIR)$(BINDIR)/rtla
120 @test ! -f $(DESTDIR)$(BINDIR)/osnoise || rm $(DESTDIR)$(BINDIR)/osnoise
121 ln -s rtla $(DESTDIR)$(BINDIR)/osnoise
122 @test ! -f $(DESTDIR)$(BINDIR)/timerlat || rm $(DESTDIR)$(BINDIR)/timerlat
123 ln -s rtla $(DESTDIR)$(BINDIR)/timerlat
124
125.PHONY: clean tarball
126clean: doc_clean
127 @test ! -f rtla || rm rtla
128 @test ! -f rtla-static || rm rtla-static
129 @test ! -f src/rtla.o || rm src/rtla.o
130 @test ! -f $(TARBALL) || rm -f $(TARBALL)
131 @rm -rf *~ $(OBJ) *.tar.$(CEXT)
132
133tarball: clean
134 rm -rf $(NAME)-$(VERSION) && mkdir $(NAME)-$(VERSION)
135 echo $(VERSION) > $(NAME)-$(VERSION)/VERSION
136 cp -r $(DIRS) $(FILES) $(NAME)-$(VERSION)
137 mkdir $(NAME)-$(VERSION)/Documentation/
138 cp -rp $(SRCTREE)/../../../Documentation/tools/rtla/* $(NAME)-$(VERSION)/Documentation/
139 tar $(TAROPTS) --exclude='*~' $(NAME)-$(VERSION)
140 rm -rf $(NAME)-$(VERSION)
141
142.PHONY: doc doc_clean doc_install
143doc:
144 $(MAKE) -C $(DOCSRC)
145
146doc_clean:
147 $(MAKE) -C $(DOCSRC) clean
148
149doc_install:
150 $(MAKE) -C $(DOCSRC) install
1# SPDX-License-Identifier: GPL-2.0-only
2
3ifeq ($(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 := $(shell sh -c "make -sC ../../.. kernelversion | grep -v make")
31DOCSRC := ../../../Documentation/tools/rtla/
32
33FEATURE_TESTS := libtraceevent
34FEATURE_TESTS += libtracefs
35FEATURE_DISPLAY := libtraceevent
36FEATURE_DISPLAY += libtracefs
37
38ifeq ($(V),1)
39 Q =
40else
41 Q = @
42endif
43
44all: $(RTLA)
45
46include $(srctree)/tools/build/Makefile.include
47include Makefile.rtla
48
49# check for dependencies only on required targets
50NON_CONFIG_TARGETS := clean install tarball doc doc_clean doc_install
51
52config := 1
53ifdef MAKECMDGOALS
54ifeq ($(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) $(LIB_INCLUDES)
65
66export CFLAGS OUTPUT srctree
67
68$(RTLA): $(RTLA_IN)
69 $(QUIET_LINK)$(CC) $(LDFLAGS) -o $(RTLA) $(RTLA_IN) $(EXTLIBS)
70
71static: $(RTLA_IN)
72 $(eval LDFLAGS += -static)
73 $(QUIET_LINK)$(CC) -static $(LDFLAGS) -o $(RTLA)-static $(RTLA_IN) $(EXTLIBS)
74
75rtla.%: fixdep FORCE
76 make -f $(srctree)/tools/build/Makefile.build dir=. $@
77
78$(RTLA_IN): fixdep FORCE
79 make $(build)=rtla
80
81clean: doc_clean fixdep-clean
82 $(call QUIET_CLEAN, rtla)
83 $(Q)find . -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
84 $(Q)rm -f rtla rtla-static fixdep FEATURE-DUMP rtla-*
85 $(Q)rm -rf feature
86.PHONY: FORCE clean