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 := $$($(PKG_CONFIG) --cflags libtracefs) 32 33CFLAGS := -O -g -DVERSION=\"$(VERSION)\" $(FOPTS) $(MOPTS) $(WOPTS) $(TRACEFS_HEADERS) 34LDFLAGS := -ggdb 35LIBS := $$($(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 64TEST_LIBTRACEEVENT = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEEVENT_MIN_VERSION) libtraceevent > /dev/null 2>&1 || echo n") 65ifeq ("$(TEST_LIBTRACEEVENT)", "n") 66.PHONY: warning_traceevent 67warning_traceevent: 68 @echo "********************************************" 69 @echo "** NOTICE: libtraceevent version $(LIBTRACEEVENT_MIN_VERSION) or higher not found" 70 @echo "**" 71 @echo "** Consider installing the latest libtraceevent from your" 72 @echo "** distribution, e.g., 'dnf install libtraceevent' on Fedora," 73 @echo "** or from source:" 74 @echo "**" 75 @echo "** https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git/ " 76 @echo "**" 77 @echo "********************************************" 78endif 79 80TEST_LIBTRACEFS = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEFS_MIN_VERSION) libtracefs > /dev/null 2>&1 || echo n") 81ifeq ("$(TEST_LIBTRACEFS)", "n") 82.PHONY: warning_tracefs 83warning_tracefs: 84 @echo "********************************************" 85 @echo "** NOTICE: libtracefs version $(LIBTRACEFS_MIN_VERSION) or higher not found" 86 @echo "**" 87 @echo "** Consider installing the latest libtracefs from your" 88 @echo "** distribution, e.g., 'dnf install libtracefs' on Fedora," 89 @echo "** or from source:" 90 @echo "**" 91 @echo "** https://git.kernel.org/pub/scm/libs/libtrace/libtracefs.git/ " 92 @echo "**" 93 @echo "********************************************" 94endif 95 96.PHONY: all 97all: rtla 98 99rtla: $(OBJ) 100 $(CC) -o rtla $(LDFLAGS) $(OBJ) $(LIBS) 101 102static: $(OBJ) 103 $(CC) -o rtla-static $(LDFLAGS) --static $(OBJ) $(LIBS) -lpthread -ldl 104 105.PHONY: install 106install: doc_install 107 $(MKDIR) -p $(DESTDIR)$(BINDIR) 108 $(INSTALL) rtla -m 755 $(DESTDIR)$(BINDIR) 109 $(STRIP) $(DESTDIR)$(BINDIR)/rtla 110 @test ! -f $(DESTDIR)$(BINDIR)/osnoise || rm $(DESTDIR)$(BINDIR)/osnoise 111 ln -s $(DESTDIR)$(BINDIR)/rtla $(DESTDIR)$(BINDIR)/osnoise 112 @test ! -f $(DESTDIR)$(BINDIR)/timerlat || rm $(DESTDIR)$(BINDIR)/timerlat 113 ln -s $(DESTDIR)$(BINDIR)/rtla $(DESTDIR)$(BINDIR)/timerlat 114 115.PHONY: clean tarball 116clean: doc_clean 117 @test ! -f rtla || rm rtla 118 @test ! -f rtla-static || rm rtla-static 119 @test ! -f src/rtla.o || rm src/rtla.o 120 @test ! -f $(TARBALL) || rm -f $(TARBALL) 121 @rm -rf *~ $(OBJ) *.tar.$(CEXT) 122 123tarball: clean 124 rm -rf $(NAME)-$(VERSION) && mkdir $(NAME)-$(VERSION) 125 echo $(VERSION) > $(NAME)-$(VERSION)/VERSION 126 cp -r $(DIRS) $(FILES) $(NAME)-$(VERSION) 127 mkdir $(NAME)-$(VERSION)/Documentation/ 128 cp -rp $(SRCTREE)/../../../Documentation/tools/rtla/* $(NAME)-$(VERSION)/Documentation/ 129 tar $(TAROPTS) --exclude='*~' $(NAME)-$(VERSION) 130 rm -rf $(NAME)-$(VERSION) 131 132.PHONY: doc doc_clean doc_install 133doc: 134 $(MAKE) -C $(DOCSRC) 135 136doc_clean: 137 $(MAKE) -C $(DOCSRC) clean 138 139doc_install: 140 $(MAKE) -C $(DOCSRC) install 141