Hi Nio
I got the same problem with you.
Do you have any good solution about it?
Maybe we can discuss that question together?

Thanks in advance.
ehung


On 3月20日, 下午10時24分, Nio <[email protected]> wrote:
> Hi David, it is not works. I think why I can't build a so namedlibgps.so 
> because there is already a libhardware.so in the parent
> directory of gps(hardware/libhardware/gps/). If so, I think I can't
> build a so like unless I change something refer to that. Ah, do you
> know how qualcomm build itslibgps.so?
>
> On 3月20日, 下午10时53分, David Turner <[email protected]> wrote:
>
> > Ah, another reason is to generate libfoo.so, you must name use "LOCAL_MODULE
> > := foo" + "include $(BUILD_SHARED_LIBRARY)"
> > using "LOCAL_MODULE := libfoo" will probably result in the generate of
> > "liblibfoo.so" or something, and the build system might not like it.
>
> > I'm just speculating though.
>
> > 2009/3/20 David Turner <[email protected]>
>
> > > It might be that there is already another module named gps_hardware
> > > somewhere in the build process, and that the error message is related to
> > > that. You should really try to call it "gps_fnord.c", assuming "fnord" is 
> > > a
> > > name related to your specific hardware.
>
> > > Or just name it "libgps.so" (LOCAL_MODULE := gps) and don't build another
> > > one.
>
> > > 2009/3/20 Nio <[email protected]>
>
> > >> Thanks David, in fact I new a file called gps_hardware.c instead of
> > >> gps_qemu.c and i try to build a so called gps_hardware.so.but when I
> > >> try to make,
> > >> it reminds errors:
> > >> build/core/shared_library.mk:20:*** hardware/libhardware/gps:
> > >> Illegal use of OVERRIDE_BUILT_MODULE_PATH.
> > >> I don't know what was happenning here.
> > >> what i have done:
> > >> 1.add to Android.mk as follow:
> > >>  LOCAL_PATH := $(call my-dir)
> > >>  include $(CLEAR_VARS)
> > >>  ...
> > >>  LOCAL_SRC_FILES += gps/gps_hardware.c
> > >>  LOCAL_SRC_FILES += gps/gps_hardware.c
> > >>  LOCAL_MODULE := libgps_hardware
> > >> include $(BUILD_SHARED_LIBRARY)
>
> > >> 2.add to vendor/marvell/littleton/BoardConfig.mk
> > >>  BOARD_GPS_LIBRARIES := libgps_hardware
>
> > >> I have no idea what is wrong with my code. Is there any advices?
> > >> Best Regards,
> > >> Nio
>
> > >> On 3月20日, 下午2时00分, David Turner <[email protected]> wrote:
> > >> > You should not need to modify gps_qemu.c at all, and this source file
> > >> > doesn't correspond to a stand-alone library;
> > >> > instead, it is part of libhardware.so.
>
> > >> > What you should do is write your ownlibgps.so that provides the
> > >> following
> > >> > function:
>
> > >> > const GpsInterface* gps_get_interface();
>
> > >> > which shall return an interface pointer to your custom implementation.
> > >> > that's about it.
>
> > >> > On Sun, Mar 15, 2009 at 8:37 PM, Nio <[email protected]> wrote:
>
> > >> > > Hi there,
> > >> > > I change the file gps_qemu.c as to integrate with my GPS. But I dont
> > >> > > know how to build a libgps_qemu.so. I have added
> > >> > > BOARD_GPS_LIBRARIES := libgps_qemu in the file BoardConfig.mk and
> > >> > > added LOCAL_SHARD_LIBRARIES +=$(BOARD_GPS_LIBRARIES) in the file gps/
> > >> > > Android.mk. But when I make, it still tells me there are no rules to
> > >> > > create out/target/product/littleton/obj/SHARD_LIBRERIES/
> > >> > > libhardware_intermediates/LINKED/libgps_qemu.so.
> > >> > > Can any one give some help? Thanks in advance.
>
> > >> > > Best Regards,
> > >> > > Nio
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