1 NAME := rtla 2 # Follow the kernel version 3 VERSION := $(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. 11 define allow-override 12 $(if $(or $(findstring environment,$(origin $(1))),\ 13 $(findstring command line,$(origin $(1)))),,\ 14 $(eval $(1) = $(2))) 15 endef 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 $(call allow-override,LDCONFIG,ldconfig) 24 25 INSTALL = install 26 MKDIR = mkdir 27 FOPTS := -flto=auto -ffat-lto-objects -fexceptions -fstack-protector-strong \ 28 -fasynchronous-unwind-tables -fstack-clash-protection 29 WOPTS := -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -Wno-maybe-uninitialized 30 31 ifeq ($(CC),clang) 32 FOPTS := $(filter-out -ffat-lto-objects, $(FOPTS)) 33 WOPTS := $(filter-out -Wno-maybe-uninitialized, $(WOPTS)) 34 endif 35 36 TRACEFS_HEADERS := $$($(PKG_CONFIG) --cflags libtracefs) 37 38 CFLAGS := -O -g -DVERSION=\"$(VERSION)\" $(FOPTS) $(MOPTS) $(WOPTS) $(TRACEFS_HEADERS) $(EXTRA_CFLAGS) 39 LDFLAGS := -flto=auto -ggdb $(EXTRA_LDFLAGS) 40 LIBS := $$($(PKG_CONFIG) --libs libtracefs) 41 42 SRC := $(wildcard src/*.c) 43 HDR := $(wildcard src/*.h) 44 OBJ := $(SRC:.c=.o) 45 DIRS := src 46 FILES := Makefile README.txt 47 CEXT := bz2 48 TARBALL := $(NAME)-$(VERSION).tar.$(CEXT) 49 TAROPTS := -cvjf $(TARBALL) 50 BINDIR := /usr/bin 51 DATADIR := /usr/share 52 DOCDIR := $(DATADIR)/doc 53 MANDIR := $(DATADIR)/man 54 LICDIR := $(DATADIR)/licenses 55 SRCTREE := $(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/. 60 ifneq ($(wildcard Documentation/.*),) 61 DOCSRC = Documentation/ 62 else 63 DOCSRC = $(SRCTREE)/../../../Documentation/tools/rtla/ 64 endif 65 66 LIBTRACEEVENT_MIN_VERSION = 1.5 67 LIBTRACEFS_MIN_VERSION = 1.3 68 69 .PHONY: all warnings show_warnings 70 all: warnings rtla 71 72 TEST_LIBTRACEEVENT = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEEVENT_MIN_VERSION) libtraceevent > /dev/null 2>&1 || echo n") 73 ifeq ("$(TEST_LIBTRACEEVENT)", "n") 74 WARNINGS = show_warnings 75 MISSING_LIBS += echo "** libtraceevent version $(LIBTRACEEVENT_MIN_VERSION) or higher"; 76 MISSING_PACKAGES += "libtraceevent-devel" 77 MISSING_SOURCE += echo "** https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git/ "; 78 endif 79 80 TEST_LIBTRACEFS = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEFS_MIN_VERSION) libtracefs > /dev/null 2>&1 || echo n") 81 ifeq ("$(TEST_LIBTRACEFS)", "n") 82 WARNINGS = show_warnings 83 MISSING_LIBS += echo "** libtracefs version $(LIBTRACEFS_MIN_VERSION) or higher"; 84 MISSING_PACKAGES += "libtracefs-devel" 85 MISSING_SOURCE += echo "** https://git.kernel.org/pub/scm/libs/libtrace/libtracefs.git/ "; 86 endif 87 88 define 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 "********************************************" 102 endef 103 104 show_warnings: 105 $(call show_dependencies); 106 107 ifneq ("$(WARNINGS)", "") 108 ERROR_OUT = $(error Please add the necessary dependencies) 109 110 warnings: $(WARNINGS) 111 $(ERROR_OUT) 112 endif 113 114 rtla: $(OBJ) 115 $(CC) -o rtla $(LDFLAGS) $(OBJ) $(LIBS) 116 117 static: $(OBJ) 118 $(CC) -o rtla-static $(LDFLAGS) --static $(OBJ) $(LIBS) -lpthread -ldl 119 120 .PHONY: install 121 install: 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 133 clean: 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) 139 140 tarball: 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 150 doc: 151 $(MAKE) -C $(DOCSRC) 152 153 doc_clean: 154 $(MAKE) -C $(DOCSRC) clean 155 156 doc_install: 157 $(MAKE) -C $(DOCSRC) install 158