make/lib_info.mk

   1 # compiler-rt Library Info
   2 #
   3 # This should be included once the subdirectory information has been loaded, and
   4 # uses the utilities in 'util.mk'.
   5 #
   6 # This defines the following variables describing compiler-rt:
   7 #   AvailableFunctions   - The entire list of function names (unmangled) the
   8 #                          library can provide.
   9 #   CommonFunctions      - The list of generic functions available.
  10 #   ArchFunctions.<arch> - The list of functions commonly available for
  11 #                          'arch'. This does not include any config specific
  12 #                          functions.
  13 #
  14 #   AvailableIn.<function> - The list of subdir keys where 'function' is
  15 #                            defined.
  16
  17 # Determine the set of available modules.
  18 AvailableModules := $(sort $(foreach key,$(SubDirKeys),\
  19         $($(key).ModuleName)))
  20
  21 # Build a per-module map of subdir keys.
  22 $(foreach key,$(SubDirKeys),\
  23         $(call Append,ModuleSubDirKeys.$($(key).ModuleName),$(key)))
  24
  25 AvailableArchs := $(sort $(foreach key,$(SubDirKeys),\
  26         $($(key).OnlyArchs)))
  27
  28 AvailableFunctions := $(sort $(foreach key,$(SubDirKeys),\
  29         $(basename $($(key).ObjNames))))
  30
  31 CommonFunctions := $(sort\
  32   $(foreach key,$(ModuleSubDirKeys.builtins),\
  33     $(if $(call strneq,,$(strip $($(key).OnlyArchs) $($(key).OnlyConfigs))),,\
  34          $(basename $($(key).ObjNames)))))
  35
  36 # Compute common arch functions.
  37 $(foreach key,$(ModuleSubDirKeys.builtins),\
  38   $(if $(call strneq,,$($(key).OnlyConfigs)),,\
  39     $(foreach arch,$($(key).OnlyArchs),\
  40       $(call Append,ArchFunctions.$(arch),$(sort \
  41         $(basename $($(key).ObjNames)))))))
  42
  43 # Compute arch only functions.
  44 $(foreach arch,$(AvailableArchs),\
  45   $(call Set,ArchFunctions.$(arch),$(sort $(ArchFunctions.$(arch))))\
  46   $(call Set,ArchOnlyFunctions.$(arch),\
  47     $(call set_difference,$(ArchFunctions.$(arch)),$(CommonFunctions))))
  48
  49 # Compute lists of where each function is available.
  50 $(foreach key,$(SubDirKeys),\
  51   $(foreach fn,$(basename $($(key).ObjNames)),\
  52     $(call Append,AvailableIn.$(fn),$(key))))
  53
  54 # The names of all the available options.
  55 AvailableOptions := AR ARFLAGS \
  56                     CC CFLAGS LDFLAGS FUNCTIONS OPTIMIZED \
  57                     RANLIB RANLIBFLAGS \
  58                     VISIBILITY_HIDDEN KERNEL_USE \
  59                     SHARED_LIBRARY SHARED_LIBRARY_SUFFIX STRIP LIPO DSYMUTIL