Platform: RK3399
OS: Android 7.1
Kernel: v4.4.83
调试Audio HAL层发现在out/target/product/rk3399_mid/system/lib/hw
目录下没看到
audio.primary.rk30board.so,
而是放在了out/target/product/rk3399_mid/system/vendor/lib/hw
目录下。
kris@eco:~/rk3399/out/target/product/rk3399_mid/system/vendor/lib/hw$ ls
audio.primary.rk30board.so lights.rk3399.so power.rk3399.so
除了Audio之外,还有light和power这两个模块的库也生成到了此目录。
路径控制主要是在Android.mk中
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := audio.primary.$(TARGET_BOARD_HARDWARE)
LOCAL_PROPRIETARY_MODULE := true
LOCAL_MODULE_RELATIVE_PATH := hw
LOCAL_SRC_FILES := \
audio_hw.c \
alsa_route.c \
alsa_mixer.c \
audio_hw_hdmi.c
其中的LOCAL_PROPRIETARY_MODULE定义就是控制生成路径到system/vendor/lib
,否则就是system/lib
像Camera模块没定义LOCAL_PROPRIETARY_MODULE
,因此和rk3288 Android6.0平台一样还是生成到
out/target/product/rk3399_mid/system/lib/hw