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      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
     60