Add support for multiple architectures with RS compat lib.

Change-Id: I310f6f72e1124c06e9c59b0f59d33f168dc1e632

core/config.mk

@@ -443,4 +443,10 @@ INTERNAL_PLATFORM_API_FILE := $(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/publi
 # objects. E.g., prebuilt/$(TARGET_PREBUILT_TAG)/libc.so
 TARGET_PREBUILT_TAG := android-$(TARGET_ARCH)
 
-include $(BUILD_SYSTEM)/dumpvar.mk
+# Set up RS prebuilt variables for compatibility library
+
+RS_PREBUILT_CLCORE := prebuilts/sdk/renderscript/lib/$(TARGET_ARCH)/libclcore.bc
+RS_PREBUILT_LIBPATH := -L prebuilts/ndk/8/platforms/android-9/arch-$(TARGET_ARCH)/usr/lib
+RS_PREBUILT_COMPILER_RT := prebuilts/sdk/renderscript/lib/$(TARGET_ARCH)/libcompiler_rt.a
+
+include $(BUILD_SYSTEM)/dumpvar.mk

core/definitions.mk

@@ -826,13 +826,13 @@ define transform-bc-to-so
 @echo "Renderscript compatibility: $(notdir $@) <= $(notdir $<)"
 $(hide) mkdir -p $(dir $@)
 $(hide) $(BCC_COMPAT) -O3 -o $(dir $@)/$(notdir $(<:.bc=.o)) -fPIC -shared \
-	-rt-path $(PRIVATE_LIBCLCORE) $<
+	-rt-path $(RS_PREBUILT_CLCORE) -mtriple $(RS_TRIPLE) $<
 $(hide) $(PRIVATE_CXX) -shared -Wl,-soname,$(notdir $@) -nostdlib \
 	-Wl,-rpath,\$$ORIGIN/../lib \
 	$(dir $@)/$(notdir $(<:.bc=.o)) \
-	$(PRIVATE_COMPILER_RT) \
+	$(RS_PREBUILT_COMPILER_RT) \
 	-o $@ -L prebuilts/gcc/ \
-	-L $(TARGET_OUT_INTERMEDIATE_LIBRARIES) $(PRIVATE_LIBPATH) \
+	-L $(TARGET_OUT_INTERMEDIATE_LIBRARIES) $(RS_PREBUILT_LIBPATH) \
 	-lRSSupport -lm
 endef
 

core/java.mk

@@ -196,10 +196,6 @@ $(RenderScript_file_stamp): PRIVATE_RS_TARGET_API := $(renderscript_target_api)
 $(RenderScript_file_stamp): $(renderscript_sources_fullpath) $(LOCAL_RENDERSCRIPT_CC)
 	$(transform-renderscripts-to-java-and-bc)
 
-# Now LOCAL_RENDERSCRIPT_COMPATIBILITY only supports arm
-ifneq ($(TARGET_ARCH),arm)
-LOCAL_RENDERSCRIPT_COMPATIBILITY :=
-endif
 ifneq ($(LOCAL_RENDERSCRIPT_COMPATIBILITY),)
 bc_files := $(patsubst %.fs,%.bc, $(patsubst %.rs,%.bc, $(notdir $(renderscript_sources))))
 rs_generated_bc := $(addprefix \
@@ -212,26 +208,14 @@ rs_compatibility_jni_libs := $(addprefix \
 
 $(rs_generated_bc) : $(RenderScript_file_stamp)
 
-ifeq (,$(TARGET_BUILD_APPS))
-rs_built_clcore := $(PRODUCT_OUT)/obj/SHARED_LIBRARIES/libclcore.bc_intermediates/libclcore.bc
-rs_extra_libpath :=
-rs_compiler_rt := $(call intermediates-dir-for,STATIC_LIBRARIES,libcompiler_rt)/libcompiler_rt.a
-else
-rs_built_clcore := prebuilts/sdk/renderscript/lib/libclcore.bc
-rs_extra_libpath := -L prebuilts/ndk/8/platforms/android-9/arch-arm/usr/lib
-rs_compiler_rt := prebuilts/sdk/renderscript/lib/libcompiler_rt.a
-endif # TARGET_BUILD_APPS
 rs_support_lib := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/libRSSupport.so
 rs_jni_lib := $(TARGET_OUT_INTERMEDIATE_LIBRARIES)/librsjni.so
 LOCAL_JNI_SHARED_LIBRARIES += libRSSupport librsjni
 
-$(rs_compatibility_jni_libs): $(RenderScript_file_stamp) $(rs_built_clcore) \
+$(rs_compatibility_jni_libs): $(RenderScript_file_stamp) $(RS_PREBUILT_CLCORE) \
     $(rs_support_lib) $(rs_jni_lib) $(rs_compiler_rt)
 $(rs_compatibility_jni_libs): | $(BCC_COMPAT)
 $(rs_compatibility_jni_libs): PRIVATE_CXX := $(TARGET_CXX)
-$(rs_compatibility_jni_libs): PRIVATE_LIBCLCORE := $(rs_built_clcore)
-$(rs_compatibility_jni_libs): PRIVATE_COMPILER_RT := $(rs_compiler_rt)
-$(rs_compatibility_jni_libs): PRIVATE_LIBPATH := $(rs_extra_libpath)
 $(rs_compatibility_jni_libs): $(renderscript_intermediate)/librs.%.so: \
     $(renderscript_intermediate.COMMON)/res/raw/%.bc
 	$(transform-bc-to-so)

core/llvm_config.mk

@@ -20,6 +20,7 @@ CLANG_CONFIG_UNKNOWN_CFLAGS := \
   -funswitch-loops
 
 ifeq ($(TARGET_ARCH),arm)
+  RS_TRIPLE := armv7-unknown-linux
   CLANG_CONFIG_EXTRA_ASFLAGS += \
     -target arm-linux-androideabi \
     -nostdlibinc \
@@ -41,6 +42,7 @@ ifeq ($(TARGET_ARCH),arm)
     -Wa,--noexecstack
 endif
 ifeq ($(TARGET_ARCH),mips)
+  RS_TRIPLE := mips-unknown-linux
   CLANG_CONFIG_EXTRA_ASFLAGS += \
     -target mipsel-linux-androideabi \
     -nostdlibinc \
@@ -65,6 +67,7 @@ ifeq ($(TARGET_ARCH),mips)
     -msynci
 endif
 ifeq ($(TARGET_ARCH),x86)
+  RS_TRIPLE := i686-unknown-linux
   CLANG_CONFIG_EXTRA_ASFLAGS += \
     -target i686-linux-android \
     -nostdlibinc \