tools/lib/lockdep/Makefile

   1 # file format version
   2 FILE_VERSION = 1
   3
   4 LIBLOCKDEP_VERSION=$(shell make --no-print-directory -sC ../../.. kernelversion)
   5
   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
  21 INSTALL = install
  22
  23 # Use DESTDIR for installing into a different root directory.
  24 # This is useful for building a package. The program will be
  25 # installed in this directory as if it was the root directory.
  26 # Then the build tool can move it later.
  27 DESTDIR ?=
  28 DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
  29
  30 prefix ?= /usr/local
  31 libdir_relative = lib
  32 libdir = $(prefix)/$(libdir_relative)
  33 bindir_relative = bin
  34 bindir = $(prefix)/$(bindir_relative)
  35
  36 export DESTDIR DESTDIR_SQ INSTALL
  37
  38 # copy a bit from Linux kbuild
  39
  40 ifeq ("$(origin V)", "command line")
  41   VERBOSE = $(V)
  42 endif
  43 ifndef VERBOSE
  44   VERBOSE = 0
  45 endif
  46
  47 ifeq ("$(origin O)", "command line")
  48   BUILD_OUTPUT := $(O)
  49 endif
  50
  51 ifeq ($(BUILD_SRC),)
  52 ifneq ($(BUILD_OUTPUT),)
  53
  54 define build_output
  55         $(if $(VERBOSE:1=),@)$(MAKE) -C $(BUILD_OUTPUT) \
  56         BUILD_SRC=$(CURDIR) -f $(CURDIR)/Makefile $1
  57 endef
  58
  59 saved-output := $(BUILD_OUTPUT)
  60 BUILD_OUTPUT := $(shell cd $(BUILD_OUTPUT) && /bin/pwd)
  61 $(if $(BUILD_OUTPUT),, \
  62      $(error output directory "$(saved-output)" does not exist))
  63
  64 all: sub-make
  65
  66 gui: force
  67         $(call build_output, all_cmd)
  68
  69 $(filter-out gui,$(MAKECMDGOALS)): sub-make
  70
  71 sub-make: force
  72         $(call build_output, $(MAKECMDGOALS))
  73
  74
  75 # Leave processing to above invocation of make
  76 skip-makefile := 1
  77
  78 endif # BUILD_OUTPUT
  79 endif # BUILD_SRC
  80
  81 # We process the rest of the Makefile if this is the final invocation of make
  82 ifeq ($(skip-makefile),)
  83
  84 srctree         := $(realpath $(if $(BUILD_SRC),$(BUILD_SRC),$(CURDIR)))
  85 objtree         := $(realpath $(CURDIR))
  86 src             := $(srctree)
  87 obj             := $(objtree)
  88
  89 export prefix libdir bindir src obj
  90
  91 # Shell quotes
  92 libdir_SQ = $(subst ','\'',$(libdir))
  93 bindir_SQ = $(subst ','\'',$(bindir))
  94
  95 LIB_FILE = liblockdep.a liblockdep.so.$(LIBLOCKDEP_VERSION)
  96 BIN_FILE = lockdep
  97
  98 CONFIG_INCLUDES =
  99 CONFIG_LIBS     =
 100 CONFIG_FLAGS    =
 101
 102 OBJ             = $@
 103 N               =
 104
 105 export Q VERBOSE
 106
 107 INCLUDES = -I. -I./uinclude -I./include -I../../include $(CONFIG_INCLUDES)
 108
 109 # Set compile option CFLAGS if not set elsewhere
 110 CFLAGS ?= -g -DCONFIG_LOCKDEP -DCONFIG_STACKTRACE -DCONFIG_PROVE_LOCKING -DBITS_PER_LONG=__WORDSIZE -DLIBLOCKDEP_VERSION='"$(LIBLOCKDEP_VERSION)"' -rdynamic -O0 -g
 111
 112 override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
 113
 114 ifeq ($(VERBOSE),1)
 115   Q =
 116   print_compile =
 117   print_app_build =
 118   print_fpic_compile =
 119   print_shared_lib_compile =
 120   print_install =
 121 else
 122   Q = @
 123   print_compile =               echo '  CC                 '$(OBJ);
 124   print_app_build =             echo '  BUILD              '$(OBJ);
 125   print_fpic_compile =          echo '  CC FPIC            '$(OBJ);
 126   print_shared_lib_compile =    echo '  BUILD SHARED LIB   '$(OBJ);
 127   print_static_lib_build =      echo '  BUILD STATIC LIB   '$(OBJ);
 128   print_install =               echo '  INSTALL     '$1'        to      $(DESTDIR_SQ)$2';
 129 endif
 130
 131 do_fpic_compile =                                       \
 132         ($(print_fpic_compile)                          \
 133         $(CC) -c $(CFLAGS) $(EXT) -fPIC $< -o $@)
 134
 135 do_app_build =                                          \
 136         ($(print_app_build)                             \
 137         $(CC) $^ -rdynamic -o $@ $(CONFIG_LIBS) $(LIBS))
 138
 139 do_compile_shared_library =                     \
 140         ($(print_shared_lib_compile)            \
 141         $(CC) --shared $^ -o $@ -lpthread -ldl -Wl,-soname='"$@"';$(shell ln -s $@ liblockdep.so))
 142
 143 do_build_static_lib =                           \
 144         ($(print_static_lib_build)              \
 145         $(RM) $@;  $(AR) rcs $@ $^)
 146
 147
 148 define do_compile
 149         $(print_compile)                                                \
 150         $(CC) -c $(CFLAGS) $(EXT) $< -o $(obj)/$@;
 151 endef
 152
 153 $(obj)/%.o: $(src)/%.c
 154         $(Q)$(call do_compile)
 155
 156 %.o: $(src)/%.c
 157         $(Q)$(call do_compile)
 158
 159 PEVENT_LIB_OBJS = common.o lockdep.o preload.o rbtree.o
 160
 161 ALL_OBJS = $(PEVENT_LIB_OBJS)
 162
 163 CMD_TARGETS = $(LIB_FILE)
 164
 165 TARGETS = $(CMD_TARGETS)
 166
 167
 168 all: all_cmd
 169
 170 all_cmd: $(CMD_TARGETS)
 171
 172 liblockdep.so.$(LIBLOCKDEP_VERSION): $(PEVENT_LIB_OBJS)
 173         $(Q)$(do_compile_shared_library)
 174
 175 liblockdep.a: $(PEVENT_LIB_OBJS)
 176         $(Q)$(do_build_static_lib)
 177
 178 $(PEVENT_LIB_OBJS): %.o: $(src)/%.c
 179         $(Q)$(do_fpic_compile)
 180
 181 ## make deps
 182
 183 all_objs := $(sort $(ALL_OBJS))
 184 all_deps := $(all_objs:%.o=.%.d)
 185
 186 # let .d file also depends on the source and header files
 187 define check_deps
 188                 @set -e; $(RM) $@; \
 189                 $(CC) -MM $(CFLAGS) $< > $@.$$$$; \
 190                 sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
 191                 $(RM) $@.$$$$
 192 endef
 193
 194 $(all_deps): .%.d: $(src)/%.c
 195         $(Q)$(call check_deps)
 196
 197 $(all_objs) : %.o : .%.d
 198
 199 dep_includes := $(wildcard $(all_deps))
 200
 201 ifneq ($(dep_includes),)
 202  include $(dep_includes)
 203 endif
 204
 205 ### Detect environment changes
 206 TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):$(ARCH):$(CROSS_COMPILE)
 207
 208 tags:   force
 209         $(RM) tags
 210         find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
 211         --regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'
 212
 213 TAGS:   force
 214         $(RM) TAGS
 215         find . -name '*.[ch]' | xargs etags \
 216         --regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'
 217
 218 define do_install
 219         $(print_install)                                \
 220         if [ ! -d '$(DESTDIR_SQ)$2' ]; then             \
 221                 $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2'; \
 222         fi;                                             \
 223         $(INSTALL) $1 '$(DESTDIR_SQ)$2'
 224 endef
 225
 226 install_lib: all_cmd
 227         $(Q)$(call do_install,$(LIB_FILE),$(libdir_SQ))
 228         $(Q)$(call do_install,$(BIN_FILE),$(bindir_SQ))
 229
 230 install: install_lib
 231
 232 clean:
 233         $(RM) *.o *~ $(TARGETS) *.a *liblockdep*.so* $(VERSION_FILES) .*.d
 234         $(RM) tags TAGS
 235
 236 endif # skip-makefile
 237
 238 PHONY += force
 239 force:
 240
 241 # Declare the contents of the .PHONY variable as phony.  We keep that
 242 # information in a variable so we can use it in if_changed and friends.
 243 .PHONY: $(PHONY)