tools/tracing/rtla/Makefile

   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 TRACEFS_HEADERS := $$($(PKG_CONFIG) --cflags libtracefs)
  32
  33 CFLAGS  :=      -O -g -DVERSION=\"$(VERSION)\" $(FOPTS) $(MOPTS) $(WOPTS) $(TRACEFS_HEADERS) $(EXTRA_CFLAGS)
  34 LDFLAGS :=      -ggdb $(EXTRA_LDFLAGS)
  35 LIBS    :=      $$($(PKG_CONFIG) --libs libtracefs)
  36
  37 SRC     :=      $(wildcard src/*.c)
  38 HDR     :=      $(wildcard src/*.h)
  39 OBJ     :=      $(SRC:.c=.o)
  40 DIRS    :=      src
  41 FILES   :=      Makefile README.txt
  42 CEXT    :=      bz2
  43 TARBALL :=      $(NAME)-$(VERSION).tar.$(CEXT)
  44 TAROPTS :=      -cvjf $(TARBALL)
  45 BINDIR  :=      /usr/bin
  46 DATADIR :=      /usr/share
  47 DOCDIR  :=      $(DATADIR)/doc
  48 MANDIR  :=      $(DATADIR)/man
  49 LICDIR  :=      $(DATADIR)/licenses
  50 SRCTREE :=      $(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/.
  55 ifneq ($(wildcard Documentation/.*),)
  56 DOCSRC  =       Documentation/
  57 else
  58 DOCSRC  =       $(SRCTREE)/../../../Documentation/tools/rtla/
  59 endif
  60
  61 LIBTRACEEVENT_MIN_VERSION = 1.5
  62 LIBTRACEFS_MIN_VERSION = 1.3
  63
  64 .PHONY: all warnings show_warnings
  65 all:    warnings rtla
  66
  67 TEST_LIBTRACEEVENT = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEEVENT_MIN_VERSION) libtraceevent > /dev/null 2>&1 || echo n")
  68 ifeq ("$(TEST_LIBTRACEEVENT)", "n")
  69 WARNINGS = show_warnings
  70 MISSING_LIBS += echo "**   libtraceevent version $(LIBTRACEEVENT_MIN_VERSION) or higher";
  71 MISSING_PACKAGES += "libtraceevent-devel"
  72 MISSING_SOURCE += echo "**  https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git/ ";
  73 endif
  74
  75 TEST_LIBTRACEFS = $(shell sh -c "$(PKG_CONFIG) --atleast-version $(LIBTRACEFS_MIN_VERSION) libtracefs > /dev/null 2>&1 || echo n")
  76 ifeq ("$(TEST_LIBTRACEFS)", "n")
  77 WARNINGS = show_warnings
  78 MISSING_LIBS += echo "**   libtracefs version $(LIBTRACEFS_MIN_VERSION) or higher";
  79 MISSING_PACKAGES += "libtracefs-devel"
  80 MISSING_SOURCE += echo "**  https://git.kernel.org/pub/scm/libs/libtrace/libtracefs.git/ ";
  81 endif
  82
  83 define 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 "********************************************"
  97 endef
  98
  99 show_warnings:
 100         $(call show_dependencies);
 101
 102 ifneq ("$(WARNINGS)", "")
 103 ERROR_OUT = $(error Please add the necessary dependencies)
 104
 105 warnings: $(WARNINGS)
 106         $(ERROR_OUT)
 107 endif
 108
 109 rtla: $(OBJ)
 110         $(CC) -o rtla $(LDFLAGS) $(OBJ) $(LIBS)
 111
 112 static: $(OBJ)
 113         $(CC) -o rtla-static $(LDFLAGS) --static $(OBJ) $(LIBS) -lpthread -ldl
 114
 115 .PHONY: install
 116 install: 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
 126 clean: 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
 133 tarball: 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
 143 doc:
 144         $(MAKE) -C $(DOCSRC)
 145
 146 doc_clean:
 147         $(MAKE) -C $(DOCSRC) clean
 148
 149 doc_install:
 150         $(MAKE) -C $(DOCSRC) install