Import compiler-rt r117047.vendor/compiler-rt/compiler-rt-r117047

1 files changed, 243 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 000000000000..530590618c62
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,243 @@
+SubDirs := lib
+
+# Set default rule before anything else.
+all: help
+
+include make/config.mk
+include make/util.mk
+# If SRCROOT is defined, assume we are doing an Apple style build. We should be
+# able to use RC_XBS for this but that is unused during "make installsrc".
+ifdef SRCROOT
+  include make/AppleBI.mk
+endif
+
+# Make sure we don't build with a missing ProjObjRoot.
+ifeq ($(ProjObjRoot),)
+$(error Refusing to build with empty ProjObjRoot variable)
+endif
+
+##############
+
+###
+# Rules
+
+###
+# Top level targets
+
+# FIXME: Document the available subtargets.
+help:
+	@echo "usage: make [{VARIABLE=VALUE}*] target"
+	@echo
+	@echo "User variables:"
+	@echo "  VERBOSE=1: Use to show all commands [default=0]"
+	@echo
+	@echo "Available targets:"
+	@echo "  <platform name>: build the libraries for 'platform'"
+	@echo "  clean:           clean all configurations"
+	@echo "  test:            run unit tests"
+	@echo
+	@echo "  info-platforms:  list available platforms"
+	@echo "  help-devel:      print additional help for developers"
+	@echo
+
+help-devel: help
+	@echo "Development targets:"
+	@echo "  <platform name>-<config name>:"
+	@echo "    build the libraries for a single platform config"
+	@echo "  <platform name>-<config name>-<arch name>:"
+	@echo "    build the libraries for a single config and arch"
+	@echo "  info-functions: list available compiler-rt functions"
+	@echo "  help-hidden: print help for Makefile debugging"
+	@echo
+
+help-hidden: help-devel
+	@echo "Debugging variables:"
+	@echo "  DEBUGMAKE=1: enable some Makefile logging [default=]"
+	@echo "           =2: enable more Makefile logging"
+	@echo
+	@echo "Debugging targets:"
+	@echo "  make-print-FOO: print information on the variable 'FOO'"
+	@echo
+
+info-functions:
+	@echo "compiler-rt Available Functions"
+	@echo
+	@echo "All Functions: $(AvailableFunctions)"
+	@$(foreach fn,$(AvailableFunctions),\
+	  printf "  %-20s - available in (%s)\n" $(fn)\
+	    "$(foreach key,$(AvailableIn.$(fn)),$($(key).Dir))";)
+
+info-platforms:
+	@echo "compiler-rt Available Platforms"
+	@echo
+	@echo "Platforms:"
+	@$(foreach key,$(PlatformKeys),\
+	  printf "  %s - from '%s'\n" $($(key).Name) $($(key).Path);\
+	  printf "    %s\n" "$($(key).Description)";\
+	  printf "    Configurations: %s\n\n" "$($(key).Configs)";)
+
+# Provide default clean target which is extended by other templates.
+.PHONY: clean
+clean::
+
+# Test
+.PHONY: test
+test:
+	cd test/Unit && ./test
+
+###
+# Directory handling magic.
+
+# Create directories as needed, and timestamp their creation.
+%/.dir:
+	$(Summary) "  MKDIR:     $*"
+	$(Verb) $(MKDIR) $* > /dev/null
+	$(Verb) $(DATE) > $@
+
+# Remove directories
+%/.remove:
+	$(Verb) $(RM) -r $*
+
+###
+# Include child makefile fragments
+
+Dir := .
+include make/subdir.mk
+include make/lib_info.mk
+include make/lib_util.mk
+include make/lib_platforms.mk
+
+###
+# Define Platform Rules
+
+define PerPlatform_template
+$(call Set,Tmp.Key,$(1))
+$(call Set,Tmp.Name,$($(Tmp.Key).Name))
+$(call Set,Tmp.Configs,$($(Tmp.Key).Configs))
+$(call Set,Tmp.ObjPath,$(ProjObjRoot)/$(Tmp.Name))
+
+# Top-Level Platform Target
+$(Tmp.Name):: $(Tmp.Configs:%=$(Tmp.ObjPath)/%/libcompiler_rt.a)
+.PHONY: $(Tmp.Name)
+
+clean::
+	$(Verb) rm -rf $(Tmp.ObjPath)
+
+# Per-Config Libraries
+$(foreach config,$(Tmp.Configs),\
+  $(call PerPlatformConfig_template,$(config)))
+endef
+
+define PerPlatformConfig_template
+$(call Set,Tmp.Config,$(1))
+$(call Set,Tmp.ObjPath,$(ProjObjRoot)/$(Tmp.Name)/$(Tmp.Config))
+
+# Compute the archs to build, depending on whether this is a universal build or
+# not.
+$(call Set,Tmp.ArchsToBuild,\
+  $(if $(call IsDefined,$(Tmp.Key).UniversalArchs),\
+       $(strip \
+         $(or $($(Tmp.Key).UniversalArchs.$(Tmp.Config)),\
+              $($(Tmp.Key).UniversalArchs))),\
+       $(call VarOrDefault,$(Tmp.Key).Arch.$(Tmp.Config),$($(Tmp.Key).Arch))))
+
+# Copy or lipo to create the per-config library.
+$(call Set,Tmp.Inputs,$(Tmp.ArchsToBuild:%=$(Tmp.ObjPath)/%/libcompiler_rt.a))
+$(Tmp.ObjPath)/libcompiler_rt.a: $(Tmp.Inputs) $(Tmp.ObjPath)/.dir
+	$(Summary) "  FINAL-ARCHIVE: $(Tmp.Name)/$(Tmp.Config): $$@"
+	-$(Verb) $(RM) $$@
+	$(if $(call streq,1,$(words $(Tmp.ArchsToBuild))), \
+	  $(Verb) $(CP) $(Tmp.Inputs) $$@, \
+	  $(Verb) $(LIPO) -create -output $$@ $(Tmp.Inputs))
+.PRECIOUS: $(Tmp.ObjPath)/.dir
+
+# Per-Config Targets
+$(Tmp.Name)-$(Tmp.Config):: $(Tmp.ObjPath)/libcompiler_rt.a
+.PHONY: $(Tmp.Name)-$(Tmp.Config)
+
+# Per-Config-Arch Libraries
+$(foreach arch,$(Tmp.ArchsToBuild),\
+  $(call PerPlatformConfigArch_template,$(arch)))
+endef
+
+define PerPlatformConfigArch_template
+$(call Set,Tmp.Arch,$(1))
+$(call Set,Tmp.ObjPath,$(ProjObjRoot)/$(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch))
+$(call Set,Tmp.Functions,$(strip \
+  $(call GetCNAVar,FUNCTIONS,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
+$(call Set,Tmp.Optimized,$(strip \
+  $(call GetCNAVar,OPTIMIZED,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
+$(call Set,Tmp.AR,$(strip \
+  $(call GetCNAVar,AR,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
+$(call Set,Tmp.ARFLAGS,$(strip \
+  $(call GetCNAVar,ARFLAGS,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
+$(call Set,Tmp.RANLIB,$(strip \
+  $(call GetCNAVar,RANLIB,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
+$(call Set,Tmp.RANLIBFLAGS,$(strip \
+  $(call GetCNAVar,RANLIBFLAGS,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
+
+# Compute the object inputs for this library.
+$(call Set,Tmp.Inputs,\
+  $(foreach fn,$(sort $(Tmp.Functions)),\
+    $(call Set,Tmp.FnDir,\
+      $(call SelectFunctionDir,$(Tmp.Config),$(Tmp.Arch),$(fn),$(Tmp.Optimized)))\
+    $(Tmp.ObjPath)/$(Tmp.FnDir)/$(fn).o))
+$(Tmp.ObjPath)/libcompiler_rt.a: $(Tmp.Inputs) $(Tmp.ObjPath)/.dir
+	$(Summary) "  ARCHIVE:   $(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch): $$@"
+	-$(Verb) $(RM) $$@
+	$(Verb) $(Tmp.AR) $(Tmp.ARFLAGS) $$@ $(Tmp.Inputs)
+	$(Verb) $(Tmp.RANLIB) $(Tmp.RANLIBFLAGS) $$@
+.PRECIOUS: $(Tmp.ObjPath)/.dir
+
+# Per-Config-Arch Targets
+$(Tmp.Name)-$(Tmp.Config)-$(Tmp.Arch):: $(Tmp.ObjPath)/libcompiler_rt.a
+.PHONY: $(Tmp.Name)-$(Tmp.Config)-$(Tmp.Arch)
+
+# Per-Config-Arch-SubDir Objects
+$(foreach key,$(SubDirKeys),\
+  $(call PerPlatformConfigArchSubDir_template,$(key)))
+endef
+
+define PerPlatformConfigArchSubDir_template
+$(call Set,Tmp.SubDirKey,$(1))
+$(call Set,Tmp.SubDir,$($(Tmp.SubDirKey).Dir))
+$(call Set,Tmp.SrcPath,$(ProjSrcRoot)/$(Tmp.SubDir))
+$(call Set,Tmp.ObjPath,$(ProjObjRoot)/$(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch)/$(Tmp.SubDirKey))
+$(call Set,Tmp.Dependencies,$($(Tmp.SubDirKey).Dependencies))
+$(call Set,Tmp.CC,$(strip \
+  $(call GetCNAVar,CC,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
+$(call Set,Tmp.KERNEL_USE,$(strip \
+  $(call GetCNAVar,KERNEL_USE,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
+$(call Set,Tmp.VISIBILITY_HIDDEN,$(strip \
+  $(call GetCNAVar,VISIBILITY_HIDDEN,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
+$(call Set,Tmp.CFLAGS,$(strip \
+  $(if $(call IsDefined,$(Tmp.Key).UniversalArchs),-arch $(Tmp.Arch),)\
+  $(if $(call streq,$(Tmp.VISIBILITY_HIDDEN),1),\
+       -fvisibility=hidden -DVISIBILITY_HIDDEN,)\
+  $(if $(call streq,$(Tmp.KERNEL_USE),1),\
+       -mkernel -DKERNEL_USE,)\
+  $(call GetCNAVar,CFLAGS,$(Tmp.Key),$(Tmp.Config),$(Tmp.Arch))))
+
+$(Tmp.ObjPath)/%.o: $(Tmp.SrcPath)/%.s $(Tmp.Dependencies) $(Tmp.ObjPath)/.dir
+	$(Summary) "  ASSEMBLE:  $(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch): $$<"
+	$(Verb) $(Tmp.CC) $(Tmp.CFLAGS)  -c -o $$@ $$<
+$(Tmp.ObjPath)/%.o: $(Tmp.SrcPath)/%.S $(Tmp.Dependencies) $(Tmp.ObjPath)/.dir
+	$(Summary) "  ASSEMBLE:  $(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch): $$<"
+	$(Verb) $(Tmp.CC) $(Tmp.CFLAGS) -c -o $$@ $$<
+$(Tmp.ObjPath)/%.o: $(Tmp.SrcPath)/%.c $(Tmp.Dependencies) $(Tmp.ObjPath)/.dir
+	$(Summary) "  COMPILE:   $(Tmp.Name)/$(Tmp.Config)/$(Tmp.Arch): $$<"
+	$(Verb) $(Tmp.CC) $(Tmp.CFLAGS) -c -o $$@ $$<
+.PRECIOUS: $(Tmp.ObjPath)/.dir
+
+endef
+
+# Run templates.
+$(foreach key,$(PlatformKeys),\
+  $(eval $(call PerPlatform_template,$(key))))
+
+###
+
+ifneq ($(DEBUGMAKE),)
+  $(info MAKE: Done processing Makefile)
+  $(info  )
+endif