tools/lib/lockdep/Makefile

   1 # liblockdep version
   2 LL_VERSION = 0
   3 LL_PATCHLEVEL = 0
   4 LL_EXTRAVERSION = 1
   5
   6 # file format version
   7 FILE_VERSION = 1
   8
   9 MAKEFLAGS += --no-print-directory
  10
  11
  12 # Makefiles suck: This macro sets a default value of $(2) for the
  13 # variable named by $(1), unless the variable has been set by
  14 # environment or command line. This is necessary for CC and AR
  15 # because make sets default values, so the simpler ?= approach
  16 # won't work as expected.
  17 define allow-override
  18   $(if $(or $(findstring environment,$(origin $(1))),\
  19             $(findstring command line,$(origin $(1)))),,\
  20     $(eval $(1) = $(2)))
  21 endef
  22
  23 # Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.
  24 $(call allow-override,CC,$(CROSS_COMPILE)gcc)
  25 $(call allow-override,AR,$(CROSS_COMPILE)ar)
  26
  27 INSTALL = install
  28
  29 # Use DESTDIR for installing into a different root directory.
  30 # This is useful for building a package. The program will be
  31 # installed in this directory as if it was the root directory.
  32 # Then the build tool can move it later.
  33 DESTDIR ?=
  34 DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
  35
  36 prefix ?= /usr/local
  37 libdir_relative = lib
  38 libdir = $(prefix)/$(libdir_relative)
  39 bindir_relative = bin
  40 bindir = $(prefix)/$(bindir_relative)
  41
  42 export DESTDIR DESTDIR_SQ INSTALL
  43
  44 # copy a bit from Linux kbuild
  45
  46 ifeq ("$(origin V)", "command line")
  47   VERBOSE = $(V)
  48 endif
  49 ifndef VERBOSE
  50   VERBOSE = 0
  51 endif
  52
  53 ifeq ("$(origin O)", "command line")
  54   BUILD_OUTPUT := $(O)
  55 endif
  56
  57 ifeq ($(BUILD_SRC),)
  58 ifneq ($(BUILD_OUTPUT),)
  59
  60 define build_output
  61         $(if $(VERBOSE:1=),@)$(MAKE) -C $(BUILD_OUTPUT) \
  62         BUILD_SRC=$(CURDIR) -f $(CURDIR)/Makefile $1
  63 endef
  64
  65 saved-output := $(BUILD_OUTPUT)
  66 BUILD_OUTPUT := $(shell cd $(BUILD_OUTPUT) && /bin/pwd)
  67 $(if $(BUILD_OUTPUT),, \
  68      $(error output directory "$(saved-output)" does not exist))
  69
  70 all: sub-make
  71
  72 gui: force
  73         $(call build_output, all_cmd)
  74
  75 $(filter-out gui,$(MAKECMDGOALS)): sub-make
  76
  77 sub-make: force
  78         $(call build_output, $(MAKECMDGOALS))
  79
  80
  81 # Leave processing to above invocation of make
  82 skip-makefile := 1
  83
  84 endif # BUILD_OUTPUT
  85 endif # BUILD_SRC
  86
  87 # We process the rest of the Makefile if this is the final invocation of make
  88 ifeq ($(skip-makefile),)
  89
  90 srctree         := $(realpath $(if $(BUILD_SRC),$(BUILD_SRC),$(CURDIR)))
  91 objtree         := $(realpath $(CURDIR))
  92 src             := $(srctree)
  93 obj             := $(objtree)
  94
  95 export prefix libdir bindir src obj
  96
  97 # Shell quotes
  98 libdir_SQ = $(subst ','\'',$(libdir))
  99 bindir_SQ = $(subst ','\'',$(bindir))
 100
 101 LIB_FILE = liblockdep.a liblockdep.so
 102 BIN_FILE = lockdep
 103
 104 CONFIG_INCLUDES =
 105 CONFIG_LIBS     =
 106 CONFIG_FLAGS    =
 107
 108 OBJ             = $@
 109 N               =
 110
 111 export Q VERBOSE
 112
 113 LIBLOCKDEP_VERSION = $(LL_VERSION).$(LL_PATCHLEVEL).$(LL_EXTRAVERSION)
 114
 115 INCLUDES = -I. -I/usr/local/include -I./uinclude -I./include $(CONFIG_INCLUDES)
 116
 117 # Set compile option CFLAGS if not set elsewhere
 118 CFLAGS ?= -g -DCONFIG_LOCKDEP -DCONFIG_STACKTRACE -DCONFIG_PROVE_LOCKING -DBITS_PER_LONG=__WORDSIZE -DLIBLOCKDEP_VERSION='"$(LIBLOCKDEP_VERSION)"' -rdynamic -O0 -g
 119
 120 override CFLAGS += $(CONFIG_FLAGS) $(INCLUDES) $(PLUGIN_DIR_SQ)
 121
 122 ifeq ($(VERBOSE),1)
 123   Q =
 124   print_compile =
 125   print_app_build =
 126   print_fpic_compile =
 127   print_shared_lib_compile =
 128   print_install =
 129 else
 130   Q = @
 131   print_compile =               echo '  CC                 '$(OBJ);
 132   print_app_build =             echo '  BUILD              '$(OBJ);
 133   print_fpic_compile =          echo '  CC FPIC            '$(OBJ);
 134   print_shared_lib_compile =    echo '  BUILD SHARED LIB   '$(OBJ);
 135   print_static_lib_build =      echo '  BUILD STATIC LIB   '$(OBJ);
 136   print_install =               echo '  INSTALL     '$1'        to      $(DESTDIR_SQ)$2';
 137 endif
 138
 139 do_fpic_compile =                                       \
 140         ($(print_fpic_compile)                          \
 141         $(CC) -c $(CFLAGS) $(EXT) -fPIC $< -o $@)
 142
 143 do_app_build =                                          \
 144         ($(print_app_build)                             \
 145         $(CC) $^ -rdynamic -o $@ $(CONFIG_LIBS) $(LIBS))
 146
 147 do_compile_shared_library =                     \
 148         ($(print_shared_lib_compile)            \
 149         $(CC) --shared $^ -o $@ -lpthread -ldl)
 150
 151 do_build_static_lib =                           \
 152         ($(print_static_lib_build)              \
 153         $(RM) $@;  $(AR) rcs $@ $^)
 154
 155
 156 define do_compile
 157         $(print_compile)                                                \
 158         $(CC) -c $(CFLAGS) $(EXT) $< -o $(obj)/$@;
 159 endef
 160
 161 $(obj)/%.o: $(src)/%.c
 162         $(Q)$(call do_compile)
 163
 164 %.o: $(src)/%.c
 165         $(Q)$(call do_compile)
 166
 167 PEVENT_LIB_OBJS = common.o lockdep.o preload.o rbtree.o
 168
 169 ALL_OBJS = $(PEVENT_LIB_OBJS)
 170
 171 CMD_TARGETS = $(LIB_FILE)
 172
 173 TARGETS = $(CMD_TARGETS)
 174
 175
 176 all: all_cmd
 177
 178 all_cmd: $(CMD_TARGETS)
 179
 180 liblockdep.so: $(PEVENT_LIB_OBJS)
 181         $(Q)$(do_compile_shared_library)
 182
 183 liblockdep.a: $(PEVENT_LIB_OBJS)
 184         $(Q)$(do_build_static_lib)
 185
 186 $(PEVENT_LIB_OBJS): %.o: $(src)/%.c
 187         $(Q)$(do_fpic_compile)
 188
 189 ## make deps
 190
 191 all_objs := $(sort $(ALL_OBJS))
 192 all_deps := $(all_objs:%.o=.%.d)
 193
 194 # let .d file also depends on the source and header files
 195 define check_deps
 196                 @set -e; $(RM) $@; \
 197                 $(CC) -MM $(CFLAGS) $< > $@.$$$$; \
 198                 sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
 199                 $(RM) $@.$$$$
 200 endef
 201
 202 $(all_deps): .%.d: $(src)/%.c
 203         $(Q)$(call check_deps)
 204
 205 $(all_objs) : %.o : .%.d
 206
 207 dep_includes := $(wildcard $(all_deps))
 208
 209 ifneq ($(dep_includes),)
 210  include $(dep_includes)
 211 endif
 212
 213 ### Detect environment changes
 214 TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):$(ARCH):$(CROSS_COMPILE)
 215
 216 tags:   force
 217         $(RM) tags
 218         find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
 219         --regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'
 220
 221 TAGS:   force
 222         $(RM) TAGS
 223         find . -name '*.[ch]' | xargs etags \
 224         --regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'
 225
 226 define do_install
 227         $(print_install)                                \
 228         if [ ! -d '$(DESTDIR_SQ)$2' ]; then             \
 229                 $(INSTALL) -d -m 755 '$(DESTDIR_SQ)$2'; \
 230         fi;                                             \
 231         $(INSTALL) $1 '$(DESTDIR_SQ)$2'
 232 endef
 233
 234 install_lib: all_cmd
 235         $(Q)$(call do_install,$(LIB_FILE),$(libdir_SQ))
 236         $(Q)$(call do_install,$(BIN_FILE),$(bindir_SQ))
 237
 238 install: install_lib
 239
 240 clean:
 241         $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d
 242         $(RM) tags TAGS
 243
 244 endif # skip-makefile
 245
 246 PHONY += force
 247 force:
 248
 249 # Declare the contents of the .PHONY variable as phony.  We keep that
 250 # information in a variable so we can use it in if_changed and friends.
 251 .PHONY: $(PHONY)