Makefile

   1 SubDirs := lib
   2
   3 # Set default rule before anything else.
   4 all: help
   5
   6 include make/config.mk
   7 include make/util.mk
   8 # If SRCROOT is defined, assume we are doing an Apple style build. We should be
   9 # able to use RC_XBS for this but that is unused during "make installsrc".
  10 ifdef SRCROOT
  11   include make/AppleBI.mk
  12 endif
  13
  14 # Make sure we don't build with a missing ProjObjRoot.
  15 ifeq ($(ProjObjRoot),)
  16 $(error Refusing to build with empty ProjObjRoot variable)
  17 endif
  18
  19 ##############
  20
  21 ###
  22 # Rules
  23
  24 ###
  25 # Top level targets
  26
  27 # FIXME: Document the available subtargets.
  28 help:
  29         @echo "usage: make [{VARIABLE=VALUE}*] target"
  30         @echo
  31         @echo "User variables:"
  32         @echo "  VERBOSE=1: Use to show all commands [default=0]"
  33         @echo
  34         @echo "Available targets:"
  35         @echo "  <platform name>: build the libraries for 'platform'"
  36         @echo "  clean:           clean all configurations"
  37         @echo "  test:            run unit tests"
  38         @echo
  39         @echo "  info-platforms:  list available platforms"
  40         @echo "  help-devel:      print additional help for developers"
  41         @echo
  42
  43 help-devel: help
  44         @echo "Development targets:"
  45         @echo "  <platform name>-<config name>:"
  46         @echo "    build the libraries for a single platform config"
  47         @echo "  <platform name>-<config name>-<arch name>:"
  48         @echo "    build the libraries for a single config and arch"
  49         @echo "  info-functions: list available compiler-rt functions"
  50         @echo "  help-hidden: print help for Makefile debugging"
  51         @echo
  52
  53 help-hidden: help-devel
  54         @echo "Debugging variables:"
  55         @echo "  DEBUGMAKE=1: enable some Makefile logging [default=]"
  56         @echo "           =2: enable more Makefile logging"
  57         @echo
  58         @echo "Debugging targets:"
  59         @echo "  make-print-FOO: print information on the variable 'FOO'"
  60         @echo
  61
  62 info-functions:
  63         @echo "compiler-rt Available Functions"
  64         @echo
  65         @echo "All Functions: $(AvailableFunctions)"
  66         @$(foreach fn,$(AvailableFunctions),\
  67           printf "  %-20s - available in (%s)\n" $(fn)\
  68             "$(foreach key,$(AvailableIn.$(fn)),$($(key).Dir))";)
  69
  70 info-platforms:
  71         @echo "compiler-rt Available Platforms"
  72         @echo
  73         @echo "Platforms:"
  74         @$(foreach key,$(PlatformKeys),\
  75           printf "  %s - from '%s'\n" $($(key).Name) $($(key).Path);\
  76           printf "    %s\n" "$($(key).Description)";\
  77           printf "    Configurations: %s\n\n" "$($(key).Configs)";)
  78
  79 # Provide default clean target which is extended by other templates.
  80 .PHONY: clean
  81 clean::
  82
  83 # Test
  84 .PHONY: test
  85 test:
  86         cd test/Unit && ./test
  87
  88 ###
  89 # Directory handling magic.
  90
  91 # Create directories as needed, and timestamp their creation.
  92 %/.dir:
  93         $(Summary) "  MKDIR:     $*"
  94         $(Verb) $(MKDIR) $* > /dev/null
  95         $(Verb) echo 'Created.' > $@
  96
  97 # Remove directories
  98 %/.remove:
  99         $(Verb) $(RM) -r $*
 100
 101 ###
 102 # Include child makefile fragments
 103
 104 Dir := .
 105 include make/subdir.mk
 106 include make/lib_info.mk
 107 include make/lib_util.mk
 108 include make/lib_platforms.mk
 109
 110 ###
 111 # Define Platform Rules
 112
 113 define PerPlatform_template
 114 $(call Set,Tmp.Key,$(1))
 115 $(call Set,Tmp.Name,$($(Tmp.Key).Name))
 116 $(call Set,Tmp.Configs,$($(Tmp.Key).Configs))
 117 $(call Set,Tmp.ObjPath,$(ProjObjRoot)/$(Tmp.Name))
 118
 119 # Top-Level Platform Target
 120 $(Tmp.Name):: $(Tmp.Configs:%=$(Tmp.Name)-%)
 121 .PHONY: $(Tmp.Name)
 122
 123 clean::
 124         $(Verb) rm -rf $(Tmp.ObjPath)
 125
 126 # Per-Config Libraries
 127 $(foreach config,$(Tmp.Configs),\
 128   $(call PerPlatformConfig_template,$(config)))
 129 endef
 130
 131 define PerPlatformConfig_template
 132 $(call Set,Tmp.Config,$(1))
 133 $(call Set,Tmp.ObjPath,$(ProjObjRoot)/$(Tmp.Name)/$(Tmp.Config))
 134 $(call Set,Tmp.SHARED_LIBRARY,$(strip \
 135   $(call GetCNAVar,SHARED_LIBRARY,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
 136 $(call Set,Tmp.SHARED_LIBRARY_SUFFIX,$(strip \
 137   $(call GetCNAVar,SHARED_LIBRARY_SUFFIX,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
 138
 139 # Compute the library suffix.
 140 $(if $(call streq,1,$(Tmp.SHARED_LIBRARY)),
 141   $(call Set,Tmp.LibrarySuffix,$(Tmp.SHARED_LIBRARY_SUFFIX)),
 142   $(call Set,Tmp.LibrarySuffix,a))
 143
 144 # Compute the archs to build, depending on whether this is a universal build or
 145 # not.
 146 $(call Set,Tmp.ArchsToBuild,\
 147   $(if $(call IsDefined,$(Tmp.Key).UniversalArchs),\
 148        $(strip \
 149          $(or $($(Tmp.Key).UniversalArchs.$(Tmp.Config)),\
 150               $($(Tmp.Key).UniversalArchs))),\
 151        $(call VarOrDefault,$(Tmp.Key).Arch.$(Tmp.Config),$($(Tmp.Key).Arch))))
 152
 153 # Copy or lipo to create the per-config library.
 154 $(call Set,Tmp.Inputs,$(Tmp.ArchsToBuild:%=$(Tmp.ObjPath)/%/libcompiler_rt.$(Tmp.LibrarySuffix)))
 155 $(Tmp.ObjPath)/libcompiler_rt.$(Tmp.LibrarySuffix): $(Tmp.Inputs) $(Tmp.ObjPath)/.dir
 156         $(Summary) "  FINAL-ARCHIVE: $(Tmp.Name)/$(Tmp.Config): $$@"
 157         -$(Verb) $(RM) $$@
 158         $(if $(call streq,1,$(words $(Tmp.ArchsToBuild))), \
 159           $(Verb) $(CP) $(Tmp.Inputs) $$@, \
 160           $(Verb) $(LIPO) -create -output $$@ $(Tmp.Inputs))
 161 .PRECIOUS: $(Tmp.ObjPath)/.dir
 162
 163 # Per-Config Targets
 164 $(Tmp.Name)-$(Tmp.Config):: $(Tmp.ObjPath)/libcompiler_rt.$(Tmp.LibrarySuffix)
 165 .PHONY: $(Tmp.Name)-$(Tmp.Config)
 166
 167 # Per-Config-Arch Libraries
 168 $(foreach arch,$(Tmp.ArchsToBuild),\
 169   $(call PerPlatformConfigArch_template,$(arch)))
 170 endef
 171
 172 define PerPlatformConfigArch_template
 173 $(call Set,Tmp.Arch,$(1))
 174 $(call Set,Tmp.ObjPath,$(ProjObjRoot)/$(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch))
 175 $(call Set,Tmp.Functions,$(strip \
 176   $(AlwaysRequiredModules) \
 177   $(call GetCNAVar,FUNCTIONS,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
 178 $(call Set,Tmp.Optimized,$(strip \
 179   $(call GetCNAVar,OPTIMIZED,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
 180 $(call Set,Tmp.AR,$(strip \
 181   $(call GetCNAVar,AR,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
 182 $(call Set,Tmp.ARFLAGS,$(strip \
 183   $(call GetCNAVar,ARFLAGS,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
 184 $(call Set,Tmp.CC,$(strip \
 185   $(call GetCNAVar,CC,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
 186 $(call Set,Tmp.LDFLAGS,$(strip \
 187   $(call GetCNAVar,LDFLAGS,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
 188 $(call Set,Tmp.RANLIB,$(strip \
 189   $(call GetCNAVar,RANLIB,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
 190 $(call Set,Tmp.RANLIBFLAGS,$(strip \
 191   $(call GetCNAVar,RANLIBFLAGS,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
 192 $(call Set,Tmp.SHARED_LIBRARY,$(strip \
 193   $(call GetCNAVar,SHARED_LIBRARY,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
 194
 195 # Compute the library suffix.
 196 $(if $(call streq,1,$(Tmp.SHARED_LIBRARY)),
 197   $(call Set,Tmp.LibrarySuffix,$(Tmp.SHARED_LIBRARY_SUFFIX)),
 198   $(call Set,Tmp.LibrarySuffix,a))
 199
 200 # Compute the object inputs for this library.
 201 $(call Set,Tmp.Inputs,\
 202   $(foreach fn,$(sort $(Tmp.Functions)),\
 203     $(call Set,Tmp.FnDir,\
 204       $(call SelectFunctionDir,$(Tmp.Config),$(Tmp.Arch),$(fn),$(Tmp.Optimized)))\
 205     $(Tmp.ObjPath)/$(Tmp.FnDir)/$(fn).o))
 206 $(Tmp.ObjPath)/libcompiler_rt.a: $(Tmp.Inputs) $(Tmp.ObjPath)/.dir
 207         $(Summary) "  ARCHIVE:   $(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch): $$@"
 208         -$(Verb) $(RM) $$@
 209         $(Verb) $(Tmp.AR) $(Tmp.ARFLAGS) $$@ $(Tmp.Inputs)
 210         $(Verb) $(Tmp.RANLIB) $(Tmp.RANLIBFLAGS) $$@
 211 $(Tmp.ObjPath)/libcompiler_rt.dylib: $(Tmp.Inputs) $(Tmp.ObjPath)/.dir
 212         $(Summary) "  DYLIB:   $(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch): $$@"
 213         $(Verb) $(Tmp.CC) -arch $(Tmp.Arch) -dynamiclib -o $$@ \
 214           $(Tmp.Inputs) $(Tmp.LDFLAGS)
 215 $(Tmp.ObjPath)/libcompiler_rt.so: $(Tmp.Inputs) $(Tmp.ObjPath)/.dir
 216         $(Summary) "  SO:   $(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch): $$@"
 217         $(Verb) $(Tmp.CC) -shared -o $$@ \
 218           $(Tmp.Inputs) $(Tmp.LDFLAGS)
 219 .PRECIOUS: $(Tmp.ObjPath)/.dir
 220
 221 # Per-Config-Arch Targets
 222 $(Tmp.Name)-$(Tmp.Config)-$(Tmp.Arch):: $(Tmp.ObjPath)/libcompiler_rt.$(Tmp.LibrarySuffix)
 223 .PHONY: $(Tmp.Name)-$(Tmp.Config)-$(Tmp.Arch)
 224
 225 # Per-Config-Arch-SubDir Objects
 226 $(foreach key,$(SubDirKeys),\
 227   $(call PerPlatformConfigArchSubDir_template,$(key)))
 228 endef
 229
 230 define PerPlatformConfigArchSubDir_template
 231 $(call Set,Tmp.SubDirKey,$(1))
 232 $(call Set,Tmp.SubDir,$($(Tmp.SubDirKey).Dir))
 233 $(call Set,Tmp.SrcPath,$(ProjSrcRoot)/$(Tmp.SubDir))
 234 $(call Set,Tmp.ObjPath,$(ProjObjRoot)/$(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch)/$(Tmp.SubDirKey))
 235 $(call Set,Tmp.Dependencies,$($(Tmp.SubDirKey).Dependencies))
 236 $(call Set,Tmp.CC,$(strip \
 237   $(call GetCNAVar,CC,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
 238 $(call Set,Tmp.KERNEL_USE,$(strip \
 239   $(call GetCNAVar,KERNEL_USE,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
 240 $(call Set,Tmp.VISIBILITY_HIDDEN,$(strip \
 241   $(call GetCNAVar,VISIBILITY_HIDDEN,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
 242 $(call Set,Tmp.CFLAGS,$(strip \
 243   $(if $(call IsDefined,$(Tmp.Key).UniversalArchs),-arch $(Tmp.Arch),)\
 244   $(if $(call streq,$(Tmp.VISIBILITY_HIDDEN),1),\
 245        -fvisibility=hidden -DVISIBILITY_HIDDEN,)\
 246   $(if $(call streq,$(Tmp.KERNEL_USE),1),\
 247        -mkernel -DKERNEL_USE,)\
 248   $(call GetCNAVar,CFLAGS,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
 249
 250 $(Tmp.ObjPath)/%.o: $(Tmp.SrcPath)/%.s $(Tmp.Dependencies) $(Tmp.ObjPath)/.dir
 251         $(Summary) "  ASSEMBLE:  $(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch): $$<"
 252         $(Verb) $(Tmp.CC) $(Tmp.CFLAGS)  -c -o $$@ $$<
 253 $(Tmp.ObjPath)/%.o: $(Tmp.SrcPath)/%.S $(Tmp.Dependencies) $(Tmp.ObjPath)/.dir
 254         $(Summary) "  ASSEMBLE:  $(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch): $$<"
 255         $(Verb) $(Tmp.CC) $(Tmp.CFLAGS) -c -o $$@ $$<
 256 $(Tmp.ObjPath)/%.o: $(Tmp.SrcPath)/%.c $(Tmp.Dependencies) $(Tmp.ObjPath)/.dir
 257         $(Summary) "  COMPILE:   $(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch): $$<"
 258         $(Verb) $(Tmp.CC) $(COMMON_CFLAGS) $(Tmp.CFLAGS) -c -o $$@ $$<
 259 $(Tmp.ObjPath)/%.o: $(Tmp.SrcPath)/%.cc $(Tmp.Dependencies) $(Tmp.ObjPath)/.dir
 260         $(Summary) "  COMPILE:   $(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch): $$<"
 261         $(Verb) $(Tmp.CC) $(COMMON_CXXFLAGS) $(Tmp.CFLAGS) -c -o $$@ $$<
 262 .PRECIOUS: $(Tmp.ObjPath)/.dir
 263
 264 endef
 265
 266 # Run templates.
 267 $(foreach key,$(PlatformKeys),\
 268   $(eval $(call PerPlatform_template,$(key))))
 269
 270 ###
 271
 272 ifneq ($(DEBUGMAKE),)
 273   $(info MAKE: Done processing Makefile)
 274   $(info  )
 275 endif