ref: d88e0899cedc9f06e71ea32d58f53421bcf069ae
parent: 241e9b775777a8dba2fa370f7fb73afd88aa6859
author: Guangwei <guangwwa@cisco.com>
date: Tue Oct 16 08:11:05 EDT 2018
add clang support for arm/arm64/x86/x86_64 when NDK version is greater then 17
--- a/build/platform-android.mk
+++ b/build/platform-android.mk
@@ -37,6 +37,8 @@
endif
TOOLCHAINPREFIX = $(shell NDK_PROJECT_PATH=$(SRC_PATH)/codec/build/android/dec make --no-print-dir -f $(NDKROOT)/build/core/build-local.mk DUMP_TOOLCHAIN_PREFIX APP_ABI=$(APP_ABI))
+TOOLCHAIN_NAME = $(shell NDK_TOOLCHAIN_VERSION= NDK_PROJECT_PATH=$(SRC_PATH)/codec/build/android/dec make --no-print-dir -f $(NDKROOT)/build/core/build-local.mk DUMP_TOOLCHAIN_NAME APP_ABI=$(APP_ABI))
+GCC_TOOLCHAIN_PATH = $(shell dirname $(TOOLCHAINPREFIX) | xargs dirname )
SYSROOT = $(NDKROOT)/platforms/android-$(NDKLEVEL)/arch-$(ARCH)
CXX = $(TOOLCHAINPREFIX)g++
@@ -43,10 +45,34 @@
CC = $(TOOLCHAINPREFIX)gcc
AR = $(TOOLCHAINPREFIX)ar
CFLAGS += -DANDROID_NDK -fpic --sysroot=$(SYSROOT) -MMD -MP
+CFLAGS += -isystem $(NDKROOT)/sysroot/usr/include -isystem $(NDKROOT)/sysroot/usr/include/$(TOOLCHAIN_NAME) -D__ANDROID_API__=$(NDKLEVEL)
CXXFLAGS += -fno-rtti -fno-exceptions
LDFLAGS += --sysroot=$(SYSROOT)
SHLDFLAGS = -Wl,--no-undefined -Wl,-z,relro -Wl,-z,now -Wl,-soname,lib$(PROJECT_NAME).so
+ifeq ($(NDK_TOOLCHAIN_VERSION), clang)
+ HOST_OS = $(shell uname -s | tr [A-Z] [a-z])
+ LLVM_INSTALL_DIR = $(NDKROOT)/toolchains/llvm/prebuilt/$(HOST_OS)-x86_64/bin
+ CC = $(LLVM_INSTALL_DIR)/clang
+ CXX = $(LLVM_INSTALL_DIR)/clang++
+
+ ifeq ($(ARCH), arm)
+ TARGET_NAME = armv7-none-linux-androideabi
+ else ifeq ($(ARCH), arm64)
+ TARGET_NAME = aarch64-none-linux-android
+ else ifeq ($(ARCH), x86)
+ TARGET_NAME = i686-none-linux-android
+ else ifeq ($(ARCH), x86_64)
+ TARGET_NAME = x86_64-none-linux-android
+ else
+ $(error "does not support this arch now!")
+ endif
+
+ CFLAGS += -target $(TARGET_NAME)
+ LDFLAGS += -target $(TARGET_NAME) -gcc-toolchain $(GCC_TOOLCHAIN_PATH)
+ LDFLAGS += -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libunwind.a
+endif
+
ifneq ($(CXX),$(wildcard $(CXX)))
ifneq ($(CXX).exe,$(wildcard $(CXX).exe))
$(error Compiler not found, bad NDKROOT or ARCH?)
@@ -68,10 +94,10 @@
binaries: decdemo encdemo
decdemo: libraries
- cd ./codec/build/android/dec && $(NDKROOT)/ndk-build -B APP_ABI=$(APP_ABI) && android update project -t $(TARGET) -p . && ant debug
+ cd ./codec/build/android/dec && $(NDKROOT)/ndk-build -B NDK_TOOLCHAIN_VERSION=$(NDK_TOOLCHAIN_VERSION) APP_ABI=$(APP_ABI) APP_PLATFORM=$(TARGET) && android update project -t $(TARGET) -p . && ant debug
encdemo: libraries
- cd ./codec/build/android/enc && $(NDKROOT)/ndk-build -B APP_ABI=$(APP_ABI) && android update project -t $(TARGET) -p . && ant debug
+ cd ./codec/build/android/enc && $(NDKROOT)/ndk-build -B NDK_TOOLCHAIN_VERSION=$(NDK_TOOLCHAIN_VERSION) APP_ABI=$(APP_ABI) APP_PLATFORM=$(TARGET) && android update project -t $(TARGET) -p . && ant debug
clean_Android: clean_Android_dec clean_Android_enc
--- a/codec/build/android/dec/jni/Application.mk
+++ b/codec/build/android/dec/jni/Application.mk
@@ -1,2 +1,6 @@
+ifeq ($(NDK_TOOLCHAIN_VERSION), clang)
+APP_STL := c++_shared
+else
APP_STL := stlport_shared
+endif
APP_PLATFORM := android-12
--- a/codec/build/android/enc/jni/Application.mk
+++ b/codec/build/android/enc/jni/Application.mk
@@ -1,2 +1,6 @@
+ifeq ($(NDK_TOOLCHAIN_VERSION), clang)
+APP_STL := c++_shared
+else
APP_STL := stlport_shared
+endif
APP_PLATFORM := android-12
--- a/codec/common/arm64/arm_arch64_common_macro.S
+++ b/codec/common/arm64/arm_arch64_common_macro.S
@@ -52,13 +52,17 @@
.align 2
.global \funcName
.type \funcName, %function
+#ifndef __clang__
.func \funcName
+#endif
\funcName:
.endm
.macro WELS_ASM_AARCH64_FUNC_END
ret
+#ifndef __clang__
.endfunc
+#endif
.endm
#endif