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Add support for "platform" configurations, which define a suite of co…
…mpiler-rt libraries to generate. - Each library may be built with different flags and for different architectures, and there is support for building Darwin style fat archives. - Uses an ambituous amount of make programming, but should be hidden to users and developers. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@93720 91177308-0d34-0410-b5e6-96231b3b80d8
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| # compiler-rt Configuration Support | ||
| # | ||
| # This should be included following 'lib_util.mk'. | ||
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| # The simple variables configurations can define. | ||
| PlainConfigVariables := Configs UniversalArchs Description | ||
| PerConfigVariables := Arch $(AvailableOptions) | ||
| RequiredConfigVariables := Configs Description | ||
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| ### | ||
| # Load Platforms | ||
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| # Template: subdir_traverse_template subdir | ||
| define load_platform_template | ||
| $(call Set,PlatformName,$(basename $(notdir $(1)))) | ||
| ifneq ($(DEBUGMAKE),) | ||
| $$(info MAKE: $(PlatformName): Loading platform) | ||
| endif | ||
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| # Construct the variable key for this directory. | ||
| $(call Set,PlatformKey,Platform.$(PlatformName)) | ||
| $(call Append,PlatformKeys,$(PlatformKey)) | ||
| $(call Set,$(PlatformKey).Name,$(PlatformName)) | ||
| $(call Set,$(PlatformKey).Path,$(1)) | ||
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| # Reset platform specific variables to sentinel value. | ||
| $$(foreach var,$(PlainConfigVariables) $(PerConfigVariables),\ | ||
| $$(call Set,$$(var),UNDEFINED)) | ||
| $$(foreach var,$(PerConfigVariables),\ | ||
| $$(foreach config,$$(Configs),\ | ||
| $$(call Set,$$(var).$$(config),UNDEFINED))) | ||
| $$(foreach var,$(PerConfigVariables),\ | ||
| $$(foreach arch,$(AvailableArchs),\ | ||
| $$(call Set,$$(var).$$(arch),UNDEFINED))) | ||
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| # Get the platform variables. | ||
| include make/options.mk | ||
| include $(1) | ||
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| # Check for undefined required variables. | ||
| $$(foreach var,$(RequiredConfigVariables),\ | ||
| $$(if $$(call strneq,UNDEFINED,$$($$(var))),, \ | ||
| $$(error $(Dir): variable '$$(var)' was not undefined))) | ||
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| # Check that exactly one of UniversalArchs or Arch was defined. | ||
| $$(if $$(and $$(call strneq,UNDEFINED,$$(UniversalArchs)),\ | ||
| $$(call strneq,UNDEFINED,$$(Arch))),\ | ||
| $$(error '$(1)': cannot define both 'UniversalArchs' and 'Arch')) | ||
| $$(if $$(or $$(call strneq,UNDEFINED,$$(UniversalArchs)),\ | ||
| $$(call strneq,UNDEFINED,$$(Arch))),,\ | ||
| $$(error '$(1)': must define one of 'UniversalArchs' and 'Arch')) | ||
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| # Collect all the platform variables for subsequent use. | ||
| $$(foreach var,$(PlainConfigVariables) $(PerConfigVariables),\ | ||
| $$(if $$(call strneq,UNDEFINED,$$($$(var))),\ | ||
| $$(call CopyVariable,$$(var),$(PlatformKey).$$(var)))) | ||
| $$(foreach var,$(PerConfigVariables),\ | ||
| $$(foreach config,$$(Configs),\ | ||
| $$(if $$(call strneq,UNDEFINED,$$($$(var).$$(config))),\ | ||
| $$(call CopyVariable,$$(var).$$(config),$(PlatformKey).$$(var).$$(config))))\ | ||
| $$(foreach arch,$(AvailableArchs),\ | ||
| $$(if $$(call strneq,UNDEFINED,$$($$(var).$$(arch))),\ | ||
| $$(call CopyVariable,$$(var).$$(arch),$(PlatformKey).$$(var).$$(arch))))\ | ||
| $$(foreach config,$$(Configs),\ | ||
| $$(foreach arch,$(AvailableArchs),\ | ||
| $$(if $$(call strneq,UNDEFINED,$$($$(var).$$(config).$$(arch))),\ | ||
| $$(call CopyVariable,$$(var).$$(config).$$(arch),\ | ||
| $(PlatformKey).$$(var).$$(config).$$(arch)))))) | ||
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| ifneq ($(DEBUGMAKE),) | ||
| $$(info MAKE: $(PlatformName): Done loading platform) | ||
| endif | ||
| endef | ||
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| # Evaluate this now so we do not have to worry about order of evaluation. | ||
| PlatformFiles := $(wildcard make/platform/*.mk) | ||
| ifneq ($(DEBUGMAKE),) | ||
| $(info MAKE: Loading platforms: $(PlatformFiles)) | ||
| endif | ||
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| $(foreach file,$(PlatformFiles),\ | ||
| $(eval $(call load_platform_template,$(file)))) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| # Options which may be overriden for platforms, etc. | ||
| # | ||
| # This list of such variables should be kept up to date with AvailableOptions in | ||
| # 'make/lib_info.mk'. | ||
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| # The compiler to use. | ||
| CC := gcc | ||
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| # The compiler flags to use. | ||
| CFLAGS := -Wall -Werror | ||
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| # The list of functions to include in the library. | ||
| FUNCTIONS := | ||
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| # Whether optimized function implementations should be used. | ||
| OPTIMIZED := 1 | ||
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| # Miscellaneous tools. | ||
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| AR := ar | ||
| # FIXME: Remove these pipes once ranlib errors are fixed. | ||
| ARFLAGS := cru 2> /dev/null | ||
| RANLIB := ranlib | ||
| # FIXME: Remove these pipes once ranlib errors are fixed. | ||
| RANLIBFLAGS := 2> /dev/null |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,53 @@ | ||
| # Configurations to build | ||
| # | ||
| # This section must define: | ||
| # Description - A description of this target. | ||
| # Configs - The names of each configuration to build; this is used to build | ||
| # multiple libraries inside a single configuration file (for | ||
| # example, Debug and Release builds, or builds with and without | ||
| # software floating point). | ||
| # | ||
| # This section must define one of: | ||
| # UniveralArchs - A list of architectures to build for, when using universal build | ||
| # support (e.g., on Darwin). This should only be used to build fat | ||
| # libraries, simply building multiple libraries for different | ||
| # architectures should do so using distinct configs, with the | ||
| # appropriate choices for CC and CFLAGS. | ||
| # | ||
| # Arch - The target architecture; this must match the compiler-rt name for the | ||
| # architecture and is used to find the appropriate function | ||
| # implementations. | ||
| # | ||
| # When not universal builds, this section may define: | ||
| # Arch.<Config Name> - Set the target architecture on a per-config basis. | ||
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| Description := Target for building universal libraries for Darwin. | ||
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| Configs := Debug Release Profile | ||
| UniversalArchs := i386 ppc x86_64 | ||
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| # Platform Options | ||
| # | ||
| # This section may override any of the variables in make/options.mk, using: | ||
| # <Option Name> := ... option value ... | ||
| # | ||
| # See make/options.mk for the available options and their meanings. Options can | ||
| # be override on a per-config, per-arch, or per-config-and-arch basis using: | ||
| # <Option Name>.<Config Name> := ... | ||
| # <Option Name>.<Arch Name> := ... | ||
| # <Option Name>.<Config Name>.<Arch Name> := ... | ||
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| CC := gcc | ||
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| CFLAGS := -Wall -Werror | ||
| CFLAGS.Debug := $(CFLAGS) -g | ||
| CFLAGS.Release := $(CFLAGS) -O3 -fomit-frame-pointer | ||
| CFLAGS.Profile := $(CFLAGS) -pg -g | ||
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| FUNCTIONS.i386 := $(CommonFunctions) $(ArchFunctions.i386) | ||
| FUNCTIONS.ppc := $(CommonFunctions) $(ArchFunctions.ppc) | ||
| FUNCTIONS.x86_64 := $(CommonFunctions) $(ArchFunctions.x86_64) | ||
| FUNCTIONS.armv6 := $(CommonFunctions) $(ArchFunctions.armv6) | ||
| FUNCTIONS.armv7 := $(CommonFunctions) $(ArchFunctions.armv7) | ||
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| OPTIMIZED.Debug := 0 |
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