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 151