I am trying to integrate alsactl into android，when I put this folder in external and compiled，it said lack libasound.so . I guess in the former platform I have used （linux，not android）， this libasound is built into shared lib and alsactl calls for this shared lib.So I am not sure what I should do now to compile this alsactl. I used to use this alsactl to utilize the alsaconf file.
在2009-03-23，"Sean McNeil" <[email protected]> 写道： > >There is no libasound.so. It is built as libasound.a and included whole >into libaudio.so. > >susanner wrote: >> how can libasound be .so not .a? after make , I can't find libasound >> in system/lib >> >> 在2009-03-23，"Sean McNeil" <[email protected]> 写道： >> > >> >Currently you cannot rely on repo or git to build Android. Period. >> > >> >susanner wrote: >> >> So, currently, I can not rely on repo or git to build alsa , right? if >> >> it's ok, would you please let me know ? Actually I am porting >> >> mediaplayer but there is no sound . >> >> >> >> 在2009-03-23，"Sean McNeil" <[email protected]> 写道： >> >> > >> >> >There is absolutely no point in using ALSA with the current repo. I have >> >> >the changes required, but it will break builds that actually work. If >> >> >you used my changes, then you'll just end up with openCORE issues after >> >> >that. So, I will submit them once the repo is again made whole. >> >> > >> >> >susanner wrote: >> >> >> here is how I ported alsa and there is still mistakes >> >> >> 1:git alsa_sound >> >> >> $git clone >> >> >> git://android.git.kernel.org/platform/hardware/alsa_sound.git >> >> >> 2:mv alsa_sound libaudio-alsa >> >> >> 3: I copied the file AudioHardware* from >> >> >> framework/base/libs/audioflinger to hardware/libaudio-alsa >> >> >> 4: revise Android.mk under folder libaudio-alsa >> >> >> ============================= >> >> >> ifeq ($(strip $(BOARD_USES_ALSA_AUDIO)),true) >> >> >> >> >> >> LOCAL_PATH := $(call my-dir) >> >> >> >> >> >> include $(CLEAR_VARS) >> >> >> >> >> >> LOCAL_ARM_MODE := arm >> >> >> LOCAL_CFLAGS = -fno-short-enums >> >> >> # LOCAL_WHOLE_STATIC_LIBRARIES := libasound >> >> >> LOCAL_C_INCLUDES += external/alsa-lib/include >> >> >> LOCAL_SRC_FILES := \ >> >> >> AudioHardwareInterface.cpp \ >> >> >> AudioHardwareStub.cpp \ >> >> >> AudioHardwareALSA.cpp >> >> >> >> >> >> LOCAL_MODULE := libaudio >> >> >> >> >> >> LOCAL_SHARED_LIBRARIES := \ >> >> >> libcutils \ >> >> >> libutils \ >> >> >> libmedia \ >> >> >> libhardware_legacy \ >> >> >> libdl \ >> >> >> libc \ >> >> >> libasound >> >> >> >> >> >> include $(BUILD_SHARED_LIBRARY) >> >> >> >> >> >> endif >> >> >> ========================= >> >> >> 5.revise build/target/board/generic/BoardConfig.mk >> >> >> >> >> >> BOARD_USES_ALSA_AUDIO := true >> >> >> #BOARD_USES_GENERIC_AUDIO := true >> >> >> 6. cd /opt/mydroid/build/core >> >> >> $ vim prelink-linux-arm.map >> >> >> add libasound.so 0xA9200000 >> >> >> >> >> >> and the make error: >> >> >> target arm C++: libaudio <= >> >> >> hardware/libaudio-alsa/AudioHardwareALSA.cpp >> >> >> target SharedLib: libaudio >> >> >> (out/target/product/generic/obj/SHARED_LIBRARIES/libaudio_intermediates/LINKED/libaudio.so) >> >> >> out/target/product/generic/obj/SHARED_LIBRARIES/libaudio_intermediates/AudioHardwareInterface.o： >> >> >> >> >> >> 在函数‘android::AudioHardwareInterface::create()’中： >> >> >> hardware/libaudio-alsa/AudioHardwareInterface.cpp:102：对‘android:: >> >> >> AudioHardwareGeneric::AudioHardwareGeneric()’未定义的引用 >> >> >> collect2: ld returned 1 exit status >> >> >> make: *** >> >> >> [out/target/product/generic/obj/SHARED_LIBRARIES/libaudio_intermediates/LINKED/libaudio.so] >> >> >> >> >> >> 错误 1 >> >> >> >> >> >> >> >> >> >> >> >> ------------------------------------------------------------------------ >> >> >> 网易邮箱，中国第一大电子邮件服务商 <http://www.yeah.net> >> >> >> > >> >> > >> >> > >> >> >> >> >> >> >> >> >> >> >> ------------------------------------------------------------------------ >> >> 网易邮箱，中国第一大电子邮件服务商 <http://www.yeah.net> >> >> > >> > >> > >> >> >> >> >> >> ------------------------------------------------------------------------ >> 网易邮箱，中国第一大电子邮件服务商 <http://www.yeah.net> >> > > > >> --~--~---------~--~----~------------~-------~--~----~ unsubscribe: [email protected] website: http://groups.google.com/group/android-porting -~----------~----~----~----~------~----~------~--~---
