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 31ifeq ($(CC),clang) 32 FOPTS := $(filter-out -ffat-lto-objects, $(FOPTS)) 33 WOPTS := $(filter-out -Wno-maybe-uninitialized, $(WOPTS)) 34endif 35 36TRACEFS_HEADERS := $$($(PKG_CONFIG) --cflags libtracefs) 37 38CFLAGS := -O -g -DVERSION=\"$(VERSION)\" $(FOPTS) $(MOPTS) $(WOPTS) $(TRACEFS_HEADERS) $(EXTRA_CFLAGS) 39LDFLAGS := -flto=auto -ggdb $(EXTRA_LDFLAGS) 40LIBS := $$($(PKG_CONFIG) --libs libtracefs) 41 42SRC := $(wildcard src/*.c) 43HDR := $(wildcard src/*.h) 44OBJ := $(SRC:.c=.o) 45DIRS := src 46FILES := Makefile README.txt 47CEXT := bz2 48TARBALL := $(NAME)-$(VERSION).tar.$(CEXT) 49TAROPTS := -cvjf $(TARBALL) 50BINDIR := /usr/bin 51DATADIR := /usr/share 52DOCDIR := $(DATADIR)/doc 53MANDIR := $(DATADIR)/man 54LICDIR := $(DATADIR)/licenses 55SRCTREE := $(or $(BUILD_SRC),$(CURDIR)) 56 57# If running from the tarball, man pages are stored in the Documentation 58# dir. If running from the kernel source, man pages are stored in 59# Documentation/tools/rtla/. 60ifneq ($(wildcard Documentation/.*),) 61DOCSRC = Documentation/ 62else 63DOCSRC = $(SRCTREE)/../../../Documentation/tools/rtla/ 64endif 65 66LIBTRACEEVENT_MIN_VERSION = 1.5 67LIBTRACEFS_MIN_VERSION = 1.3 68 69.PHONY: all warnings show_warnings 70all: warnings rtla 71 72TEST_LIBTRACEEVENT = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEEVENT_MIN_VERSION) libtraceevent > /dev/null 2>&1 || echo n") 73ifeq ("$(TEST_LIBTRACEEVENT)", "n") 74WARNINGS = show_warnings 75MISSING_LIBS += echo "** libtraceevent version $(LIBTRACEEVENT_MIN_VERSION) or higher"; 76MISSING_PACKAGES += "libtraceevent-devel" 77MISSING_SOURCE += echo "** https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git/ "; 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") 82WARNINGS = show_warnings 83MISSING_LIBS += echo "** libtracefs version $(LIBTRACEFS_MIN_VERSION) or higher"; 84MISSING_PACKAGES += "libtracefs-devel" 85MISSING_SOURCE += echo "** https://git.kernel.org/pub/scm/libs/libtrace/libtracefs.git/ "; 86endif 87 88define show_dependencies 89 @echo "********************************************"; \ 90 echo "** NOTICE: Failed build dependencies"; \ 91 echo "**"; \ 92 echo "** Required Libraries:"; \ 93 $(MISSING_LIBS) \ 94 echo "**"; \ 95 echo "** Consider installing the latest libtracefs from your"; \ 96 echo "** distribution, e.g., 'dnf install $(MISSING_PACKAGES)' on Fedora,"; \ 97 echo "** or from source:"; \ 98 echo "**"; \ 99 $(MISSING_SOURCE) \ 100 echo "**"; \ 101 echo "********************************************" 102endef 103 104show_warnings: 105 $(call show_dependencies); 106 107ifneq ("$(WARNINGS)", "") 108ERROR_OUT = $(error Please add the necessary dependencies) 109 110warnings: $(WARNINGS) 111 $(ERROR_OUT) 112endif 113 114rtla: $(OBJ) 115 $(CC) -o rtla $(LDFLAGS) $(OBJ) $(LIBS) 116 117static: $(OBJ) 118 $(CC) -o rtla-static $(LDFLAGS) --static $(OBJ) $(LIBS) -lpthread -ldl 119 120.PHONY: install 121install: doc_install 122 $(MKDIR) -p $(DESTDIR)$(BINDIR) 123 $(INSTALL) rtla -m 755 $(DESTDIR)$(BINDIR) 124 $(STRIP) $(DESTDIR)$(BINDIR)/rtla 125 @test ! -f $(DESTDIR)$(BINDIR)/osnoise || rm $(DESTDIR)$(BINDIR)/osnoise 126 ln -s rtla $(DESTDIR)$(BINDIR)/osnoise 127 @test ! -f $(DESTDIR)$(BINDIR)/hwnoise || rm $(DESTDIR)$(BINDIR)/hwnoise 128 ln -s rtla $(DESTDIR)$(BINDIR)/hwnoise 129 @test ! -f $(DESTDIR)$(BINDIR)/timerlat || rm $(DESTDIR)$(BINDIR)/timerlat 130 ln -s rtla $(DESTDIR)$(BINDIR)/timerlat 131 132.PHONY: clean tarball 133clean: doc_clean 134 @test ! -f rtla || rm rtla 135 @test ! -f rtla-static || rm rtla-static 136 @test ! -f src/rtla.o || rm src/rtla.o 137 @test ! -f $(TARBALL) || rm -f $(TARBALL) 138 @rm -rf *~ $(OBJ) *.tar.$(CEXT) 139 140tarball: clean 141 rm -rf $(NAME)-$(VERSION) && mkdir $(NAME)-$(VERSION) 142 echo $(VERSION) > $(NAME)-$(VERSION)/VERSION 143 cp -r $(DIRS) $(FILES) $(NAME)-$(VERSION) 144 mkdir $(NAME)-$(VERSION)/Documentation/ 145 cp -rp $(SRCTREE)/../../../Documentation/tools/rtla/* $(NAME)-$(VERSION)/Documentation/ 146 tar $(TAROPTS) --exclude='*~' $(NAME)-$(VERSION) 147 rm -rf $(NAME)-$(VERSION) 148 149.PHONY: doc doc_clean doc_install 150doc: 151 $(MAKE) -C $(DOCSRC) 152 153doc_clean: 154 $(MAKE) -C $(DOCSRC) clean 155 156doc_install: 157 $(MAKE) -C $(DOCSRC) install 158