// YES means even the normal variant, libSystem.B.dylib, will be ASanified.
//
// XBS sets RC_SUPPORT_ADDRESS_SANITIZATION=1 to trigger the ASanified normal variant.
-ASAN_IN_NORMAL_VARIANT_1 = YES
-ASAN_IN_NORMAL_VARIANT_0 = NO
-ASAN_IN_NORMAL_VARIANT_ = NO
-ASAN_IN_NORMAL_VARIANT = $(ASAN_IN_NORMAL_VARIANT_$(RC_SUPPORT_ADDRESS_SANITIZATION))
+ASAN_IN_NORMAL_VARIANT_DK_ = YES
+ASAN_IN_NORMAL_VARIANT_DK_1 = NO
+ASAN_IN_NORMAL_VARIANT_RC_1 = $(ASAN_IN_NORMAL_VARIANT_DK_$(DRIVERKIT))
+ASAN_IN_NORMAL_VARIANT_RC_ = NO
+ASAN_IN_NORMAL_VARIANT = $(ASAN_IN_NORMAL_VARIANT_RC_$(RC_SUPPORT_ADDRESS_SANITIZATION))
+
+// Apple Internal Sanitizer dylib path
+SANITIZER_DYLIB_DIR = /usr/appleinternal/lib/sanitizers
ASAN_CFLAGS_ =
ASAN_CFLAGS_YES = -DCURRENT_VARIANT_asan=1
ASAN_LDFLAGS_ =
-SHARED_ASAN_LDFLAGS = -L $(SDKROOT)/usr/local/lib/sanitizers -Xlinker -not_for_dyld_shared_cache -rpath /usr/local/lib/sanitizers/
+SHARED_ASAN_LDFLAGS = -L $(SDKROOT)$(SANITIZER_DYLIB_DIR) -Xlinker -not_for_dyld_shared_cache -rpath $(SANITIZER_DYLIB_DIR)/
ASAN_LDFLAGS_YES[sdk=macosx*] = $(SHARED_ASAN_LDFLAGS) -Xlinker -upward-lclang_rt.asan_osx_dynamic
ASAN_LDFLAGS_YES[sdk=iphoneos*] = $(SHARED_ASAN_LDFLAGS) -Xlinker -upward-lclang_rt.asan_ios_dynamic
ASAN_LDFLAGS_YES[sdk=watchos*] = $(SHARED_ASAN_LDFLAGS) -Xlinker -upward-lclang_rt.asan_watchos_dynamic
ASAN_IN_NORMAL_VARIANT_CFLAGS = $(ASAN_CFLAGS_$(ASAN_IN_NORMAL_VARIANT))
ASAN_IN_NORMAL_VARIANT_LDFLAGS = $(ASAN_LDFLAGS_$(ASAN_IN_NORMAL_VARIANT))
-BUILD_VARIANTS = normal debug asan
+SDK_INSTALL_VARIANT = $(SDK_INSTALL_VARIANT_$(DRIVERKIT))
+SDK_INSTALL_VARIANT_1 = driverkit
+SDK_INSTALL_VARIANT_ = default
+SDK_INSTALL_ROOT = $(SDK_INSTALL_ROOT_$(SDK_INSTALL_VARIANT))
+SDK_INSTALL_ROOT_driverkit = $(DRIVERKITROOT)
+SDK_INSTALL_HEADERS_ROOT = $(SDK_INSTALL_HEADERS_ROOT_$(SDK_INSTALL_VARIANT))
+SDK_INSTALL_HEADERS_ROOT_driverkit = $(SDK_INSTALL_ROOT)/$(SDK_RUNTIME_HEADERS_PREFIX)
+SDK_RUNTIME_HEADERS_PREFIX = Runtime
+
+BUILD_VARIANTS = $(BUILD_VARIANTS_$(SDK_INSTALL_VARIANT))
+BUILD_VARIANTS_default = normal debug asan
+BUILD_VARIANTS_driverkit = normal debug
SUPPORTED_PLATFORMS = macosx iphoneos iphonesimulator appletvos appletvsimulator watchos watchsimulator
-INSTALL_PATH = /usr/lib
+INSTALL_PATH = $(SDK_INSTALL_ROOT)/usr/lib
+INSTALL_PATH_PREFIX = $(SDK_INSTALL_ROOT)
+INSTALL_PATH_FRAMEWORK_PREFIX = $(SDK_INSTALL_HEADERS_ROOT)
DYLIB_CURRENT_VERSION = $(CURRENT_VERSION_STRING_$(RC_XBS))
+// used in PRODUCT_NAME of dylib target
+DYLIB_NAME_VERSION_SUFFIX = .B
+DYLIB_NAME_VERSION_SUFFIX[sdk=driverkit*] =
ORDER_FILE = $(SDKROOT)/$(APPLE_INTERNAL_DIR)/OrderFiles/libSystem.order
ORDER_FILE[sdk=iphonesimulator*] =
+ORDER_FILE[sdk=driverkit*] =
+SYSTEM_HEADER_SEARCH_PATHS = $(SDKROOT)/$(SDK_INSTALL_HEADERS_ROOT)/System/Library/Frameworks/System.framework/PrivateHeaders $(SDKROOT)/$(SDK_INSTALL_HEADERS_ROOT)/usr/local/include $(SDKROOT)/$(SDK_INSTALL_HEADERS_ROOT)/usr/include
+SYSTEM_FRAMEWORK_SEARCH_PATHS = $(SDKROOT)/$(SDK_INSTALL_HEADERS_ROOT)/System/Library/PrivateFrameworks $(SDKROOT)/$(SDK_INSTALL_HEADERS_ROOT)/System/Library/Frameworks
OTHER_CFLAGS = -include $(BUILT_PRODUCTS_DIR)/config.$(CURRENT_ARCH).$(CURRENT_VARIANT).h -DCURRENT_VARIANT_$(CURRENT_VARIANT)=1 $(ASAN_IN_NORMAL_VARIANT_CFLAGS)
-OTHER_LDFLAGS = -Wl,-search_paths_first -nodefaultlibs @$(BUILT_PRODUCTS_DIR)/linker_arguments.$(CURRENT_ARCH).$(CURRENT_VARIANT).txt $(ASAN_IN_NORMAL_VARIANT_LDFLAGS)
+OTHER_LDFLAGS = -Wl,-search_paths_first -nodefaultlibs @$(BUILT_PRODUCTS_DIR)/linker_arguments.$(CURRENT_ARCH).$(CURRENT_VARIANT).txt $(ASAN_IN_NORMAL_VARIANT_LDFLAGS) $(DRIVERKIT_LDFLAGS)
OTHER_LDFLAGS_asan = $(ASAN_LDFLAGS_YES)
+// whitelist of libraries in DriverKit SDK allowed to link directly against libSystem.dylib (outside of the umbrella)
+DRIVERKIT_LDFLAGS[sdk=driverkit*] = -Wl,-allowable_client,c++ -Wl,-allowable_client,c++abi -Wl,-allowable_client,DriverKit
LD_GENERATE_MAP_FILE = YES
EXECUTABLE_PREFIX = lib
-PRIVATE_HEADERS_FOLDER_PATH = /usr/local/include/os
-LIBRARY_SEARCH_PATHS = $(SDKROOT)/usr/lib/system $(SDKROOT)/usr/local/lib/system
+PRIVATE_HEADERS_FOLDER_PATH = $(SDK_INSTALL_HEADERS_ROOT)/usr/local/include/os
+LIBRARY_SEARCH_PATHS = $(SDKROOT)/$(SDK_INSTALL_ROOT)/usr/lib/system $(SDKROOT)/$(SDK_INSTALL_ROOT)/usr/local/lib/system
GCC_NO_COMMON_BLOCKS = YES
GCC_WARN_64_TO_32_BIT_CONVERSION = YES
GCC_WARN_ABOUT_RETURN_TYPE = YES
APPLY_RULES_IN_COPY_FILES = YES
PLIST_FILE_OUTPUT_FORMAT = binary
PLIST_FILE_OUTPUT_FORMAT[sdk=macosx*] = xml
+EXCLUDED_SOURCE_FILE_NAMES[sdk=driverkit*] = Info.plist
+
+EXCLUDED_SOURCE_FILE_NAMES = $(inherited) i386.c
+INCLUDED_SOURCE_FILE_NAMES[sdk=macos*][arch=i386] = $(inherited) i386.c
+EXCLUDED_SOURCE_FILE_NAMES[sdk=macosx*][arch=i386] = $(inherited) init.c CompatibilityHacks.c
// override presence of $(EXECUTABLE_VARIANT_SUFFIX) in the default EXECUTABLE_NAME rdar://26234727
DYLIB_INSTALL_NAME_EXECUTABLE_NAME = $(EXECUTABLE_PREFIX)$(PRODUCT_NAME)$(EXECUTABLE_SUFFIX)