[Mono-dev] Using .so file in Android Library Project and then using it in an Android App

Fri Nov 28 10:32:44 UTC 2014

Now, I can add .so file into the csproj. However, a new error occured:
libcyusb.so is not a valid ELF.

I think while building libcyusb in linux, I should add Android as target
OS. Is that true? If it is, how can I add it to the makefile? Do you know
the commands for it?

2014-11-26 19:36 GMT+02:00 Rafael Teixeira <monoman at gmail.com>:

> I think you'll need to add it to the application. I'm not sure Android
> will let you install the native lib in any valid place afterwards, like
> extracting it from an embedded resource and writing to a file, but I might
> be wrong... Wait for the experts to chime in...
>
>
> On Wed Nov 26 2014 at 3:05:25 PM Burhan Eyuboglu <burhaneyuboglu at gmail.com>
> wrote:
>
>> Is <AndroidNativeLibrary> valid for adding .so file to
>> AndroidLibraryProject? I m not trying to add it to AndroidApplication
>>
>> 26 Kasım 2014 Çarşamba tarihinde, Rafael Teixeira <monoman at gmail.com>
>> yazdı:
>>
>>> It should be
>>> <AndroidNativeLibrary Include="Resources\lib\armeabi-v7a\libcyusb.so" />,
>>> that is what Jonathan meant by choosing the action (you can change it on
>>> the properties window when selecting the item in the solution explorer),
>>> also it is not a good thing to put it inside the Resources folder, it is
>>> not an embeddable resource, it will be packed in the apk not in the managed
>>> dll.
>>>
>>> On Wed Nov 26 2014 at 2:08:39 PM Burhan Eyuboglu <
>>> burhaneyuboglu at gmail.com> wrote:
>>>
>>>>
>>>>
>>>>
>>>> I have created a lib file in the resources folder, and armeabi-v7a
>>>> folder in the lib file and put the libcyusb.so there. When I look at the
>>>> csproj file, it has changed like that:
>>>>
>>>> <ItemGroup>
>>>>     <AndroidEmbeddedJavaLibrary
>>>> Include="Resources\lib\armeabi-v7a\libcyusb.so" />
>>>>
>>>>
>>>> However, I'm still getting " can not load dll" error:
>>>>
>>>> [monodroid-debug] Trying to initialize the debugger with options:
>>>> --debugger-agent=transport=dt_socket,loglevel=0,address=127.0.0.1:8852
>>>> ,server=y,embedding=1
>>>> [libc] WARNING: generic atexit() called from legacy shared library
>>>> [Mono] Image addref mscorlib[0x5ac6bfe0] -> mscorlib.dll[0x5ace0fa0]: 1
>>>> [Mono] AOT module 'mscorlib.dll.so' not found: Cannot load library:
>>>> load_library(linker.cpp:746): library
>>>> "/data/data/LibraryDenemesi.LibraryDenemesi/lib/mscorlib.dll.so" not
>>>> found
>>>> [Mono] Assembly mscorlib[0x5ac6bfe0] added to domain RootDomain,
>>>> ref_count=1
>>>> [Mono] Assembly Loader probing location:
>>>> '/storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/LibraryDenemesi.dll'.
>>>> [Mono] Image addref LibraryDenemesi[0x5c771638] ->
>>>> /storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/LibraryDenemesi.dll[0x5bb190f0]:
>>>> 2
>>>> [Mono] Assembly LibraryDenemesi[0x5c771638] added to domain RootDomain,
>>>> ref_count=1
>>>> [Mono] AOT module
>>>> '/storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/
>>>> LibraryDenemesi.dll.so' not found: Cannot load library:
>>>> load_library(linker.cpp:746): library
>>>> "/data/data/LibraryDenemesi.LibraryDenemesi/lib//storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/
>>>> LibraryDenemesi.dll.so" not found
>>>> [Mono] Assembly Loader loaded assembly from location:
>>>> '/storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/LibraryDenemesi.dll'.
>>>> [Mono] Config attempting to parse:
>>>> '/storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/LibraryDenemesi.dll.config'.
>>>> [Mono] Config attempting to parse:
>>>> '/Users/builder/data/lanes/monodroid-mlion-monodroid-4.20-series/ba9bbbdd/source/monodroid/builds/install/mono-armv7/etc/mono/assemblies/LibraryDenemesi/LibraryDenemesi.config'.
>>>> [Mono] Image addref CypressLibrary[0x5ac25fb0] ->
>>>> CypressLibrary.dll[0x5bb1a420]: 1
>>>> [Mono] Assembly CypressLibrary[0x5ac25fb0] added to domain RootDomain,
>>>> ref_count=1
>>>> [Mono] AOT module 'CypressLibrary.dll.so' not found: Cannot load
>>>> library: load_library(linker.cpp:746): library
>>>> "/data/data/LibraryDenemesi.LibraryDenemesi/lib/CypressLibrary.dll.so"
>>>> not found
>>>> [monodroid-gc] GREF GC Threshold: 46800
>>>> [Mono] Image addref Mono.Android[0x5aa93670] ->
>>>> Mono.Android.dll[0x5ace36c8]: 1
>>>> [Mono] Assembly Mono.Android[0x5aa93670] added to domain RootDomain,
>>>> ref_count=1
>>>> [Mono] AOT module 'Mono.Android.dll.so' not found: Cannot load
>>>> library: load_library(linker.cpp:746): library
>>>> "/data/data/LibraryDenemesi.LibraryDenemesi/lib/Mono.Android.dll.so"
>>>> not found
>>>> [Mono] Assembly Ref addref Mono.Android[0x5aa93670] ->
>>>> mscorlib[0x5ac6bfe0]: 2
>>>> [Mono] Image addref System.Core[0x5aceeb28] ->
>>>> System.Core.dll[0x59bb3240]: 1
>>>> [Mono] Assembly System.Core[0x5aceeb28] added to domain RootDomain,
>>>> ref_count=1
>>>> [Mono] AOT module 'System.Core.dll.so' not found: Cannot load library:
>>>> load_library(linker.cpp:746): library
>>>> "/data/data/LibraryDenemesi.LibraryDenemesi/lib/System.Core.dll.so"
>>>> not found
>>>> [Mono] Assembly Ref addref Mono.Android[0x5aa93670] ->
>>>> System.Core[0x5aceeb28]: 2
>>>> [Mono] Assembly Ref addref System.Core[0x5aceeb28] ->
>>>> mscorlib[0x5ac6bfe0]: 3
>>>> [Mono] Assembly Ref addref LibraryDenemesi[0x5c771638] ->
>>>> Mono.Android[0x5aa93670]: 2
>>>> [Mono] DllImport attempting to load: '__Internal'.
>>>> [Mono] DllImport loaded library '(null)'.
>>>> [Mono] DllImport searching in: '__Internal' ('(null)').
>>>> [Mono] Searching for '_monodroid_gc_wait_for_bridge_processing'.
>>>> [Mono] Probing '_monodroid_gc_wait_for_bridge_processing'.
>>>> [Mono] Found as '_monodroid_gc_wait_for_bridge_processing'.
>>>> [Mono] DllImport searching in: '__Internal' ('(null)').
>>>> [Mono] Searching for '_monodroid_get_identity_hash_code'.
>>>> [Mono] Probing '_monodroid_get_identity_hash_code'.
>>>> [Mono] Found as '_monodroid_get_identity_hash_code'.
>>>> Loaded assembly: MonoDroidConstructors [External]
>>>> [Mono] Assembly Ref addref LibraryDenemesi[0x5c771638] ->
>>>> mscorlib[0x5ac6bfe0]: 4
>>>> [Mono] DllImport searching in: '__Internal' ('(null)').
>>>> [Mono] Searching for '_monodroid_gref_log_new'.
>>>> [Mono] Probing '_monodroid_gref_log_new'.
>>>> [Mono] Found as '_monodroid_gref_log_new'.
>>>> [Mono] Assembly Loader probing location:
>>>> '/storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/CypressDenemeLibrary.dll'.
>>>> [Mono] Image addref CypressDenemeLibrary[0x5f6dd4f8] ->
>>>> /storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/CypressDenemeLibrary.dll[0x5f6dd150]:
>>>> 2
>>>> [Mono] Assembly CypressDenemeLibrary[0x5f6dd4f8] added to domain
>>>> RootDomain, ref_count=1
>>>> [Mono] AOT module
>>>> '/storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/
>>>> CypressDenemeLibrary.dll.so' not found: Cannot load library:
>>>> load_library(linker.cpp:746): library
>>>> "/data/data/LibraryDenemesi.LibraryDenemesi/lib//storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/
>>>> CypressDenemeLibrary.dll.so" not found
>>>> [Mono] Assembly Loader loaded assembly from location:
>>>> '/storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/CypressDenemeLibrary.dll'.
>>>> [Mono] Config attempting to parse:
>>>> '/storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/CypressDenemeLibrary.dll.config'.
>>>> [Mono] Config attempting to parse:
>>>> '/Users/builder/data/lanes/monodroid-mlion-monodroid-4.20-series/ba9bbbdd/source/monodroid/builds/install/mono-armv7/etc/mono/assemblies/CypressDenemeLibrary/CypressDenemeLibrary.config'.
>>>> [Mono] Assembly Ref addref LibraryDenemesi[0x5c771638] ->
>>>> CypressDenemeLibrary[0x5f6dd4f8]: 2
>>>> [Mono] Assembly Ref addref CypressDenemeLibrary[0x5f6dd4f8] ->
>>>> mscorlib[0x5ac6bfe0]: 5
>>>> [Mono] DllImport attempting to load: 'libcyusb.so'.
>>>> [Mono] DllImport error loading library
>>>> '/storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/libcyusb.so':
>>>> 'Cannot load library: load_library(linker.cpp:746): library
>>>> "/data/data/LibraryDenemesi.LibraryDenemesi/lib//storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/libcyusb.so"
>>>> not found'.
>>>> [Mono] DllImport error loading library
>>>> '/storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/libcyusb.so':
>>>> 'Cannot load library: load_library(linker.cpp:746): library
>>>> "/data/data/LibraryDenemesi.LibraryDenemesi/lib//storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/libcyusb.so"
>>>> not found'.
>>>> [Mono] DllImport error loading library 'libcyusb.so': 'Cannot load
>>>> library: load_library(linker.cpp:746): library
>>>> "/data/data/LibraryDenemesi.LibraryDenemesi/lib/libcyusb.so" not found'.
>>>> [Mono] DllImport error loading library 'libcyusb.so': 'Cannot load
>>>> library: load_library(linker.cpp:746): library
>>>> "/data/data/LibraryDenemesi.LibraryDenemesi/lib/libcyusb.so" not found'.
>>>> [Mono] DllImport error loading library 'libcyusb.so': 'Cannot load
>>>> library: load_library(linker.cpp:746): library
>>>> "/data/data/LibraryDenemesi.LibraryDenemesi/lib/libcyusb.so" not found'.
>>>> [Mono] DllImport unable to load library 'Cannot load library:
>>>> load_library(linker.cpp:746): library
>>>> "/data/data/LibraryDenemesi.LibraryDenemesi/lib/libcyusb.so" not found'.
>>>> Loaded assembly:
>>>> /storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/CypressDenemeLibrary.dll
>>>> [External]
>>>> [MoreInfoHPW_ViewGroup] Parent view is not a TextView
>>>> [Mono] DllImport searching in: '__Internal' ('(null)').
>>>> [Mono] Searching for '_monodroid_gref_log_delete'.
>>>> [Mono] Probing '_monodroid_gref_log_delete'.
>>>> [Mono] Found as '_monodroid_gref_log_delete'.
>>>> [Mono] DllImport attempting to load: 'libcyusb.so'.
>>>> [Mono] DllImport error loading library
>>>> '/storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/libcyusb.so':
>>>> 'Cannot load library: load_library(linker.cpp:746): library
>>>> "/data/data/LibraryDenemesi.LibraryDenemesi/lib//storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/libcyusb.so"
>>>> not found'.
>>>> [Mono] DllImport error loading library
>>>> '/storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/libcyusb.so':
>>>> 'Cannot load library: load_library(linker.cpp:746): library
>>>> "/data/data/LibraryDenemesi.LibraryDenemesi/lib//storage/emulated/0/Android/data/LibraryDenemesi.LibraryDenemesi/files/.__override__/libcyusb.so"
>>>> not found'.
>>>> [Mono] DllImport error loading library 'libcyusb.so': 'Cannot load
>>>> library: load_library(linker.cpp:746): library
>>>> "/data/data/LibraryDenemesi.LibraryDenemesi/lib/libcyusb.so" not found'.
>>>> [Mono] DllImport error loading library 'libcyusb.so': 'Cannot load
>>>> library: load_library(linker.cpp:746): library
>>>> "/data/data/LibraryDenemesi.LibraryDenemesi/lib/libcyusb.so" not found'.
>>>> [Mono] DllImport error loading library 'libcyusb.so': 'Cannot load
>>>> library: load_library(linker.cpp:746): library
>>>> "/data/data/LibraryDenemesi.LibraryDenemesi/lib/libcyusb.so" not found'.
>>>> [Mono] DllImport unable to load library 'Cannot load library:
>>>> load_library(linker.cpp:746): library
>>>> "/data/data/LibraryDenemesi.LibraryDenemesi/lib/libcyusb.so" not found'.
>>>> [Mono] Assembly Ref addref CypressDenemeLibrary[0x5f6dd4f8] ->
>>>> Mono.Android[0x5aa93670]: 3
>>>> [Mono] DllImport attempting to load: '/system/lib/liblog.so'.
>>>> [Mono] DllImport loaded library '/system/lib/liblog.so'.
>>>> [Mono] DllImport searching in: '/system/lib/liblog.so'
>>>> ('/system/lib/liblog.so').
>>>> [Mono] Searching for '__android_log_print'.
>>>> [Mono] Probing '__android_log_print'.
>>>> [Mono] Found as '__android_log_print'.
>>>> System.DllNotFoundException: libcyusb.so
>>>>   at (wrapper managed-to-native) DataDeneme:libusb_init ()
>>>>   at LibraryDenemesi.MainActivity.OnCreate (Android.OS.Bundle bundle)
>>>> [0x0004e] in
>>>> c:\Users\Sercan\Documents\Projects\LibraryDenemesi\LibraryDenemesi\MainActivity.cs:34
>>>> [libEGL] loaded /system/lib/egl/libEGL_mali.so
>>>> [libEGL] loaded /system/lib/egl/libGLESv1_CM_mali.so
>>>> [libEGL] loaded /system/lib/egl/libGLESv2_mali.so
>>>> [] Device driver API match
>>>> [] Device driver API version: 17
>>>> [] User space API version: 17
>>>> [] mali: REVISION=Linux-r3p1-01rel1 BUILD_DATE=Fri May 10 18:36:49 KST
>>>> 2013
>>>> [OpenGLRenderer] Enabling debug mode 0
>>>>
>>>>
>>>>
>>>> 2014-11-26 12:28 GMT+02:00 Burhan Eyuboglu <burhaneyuboglu at gmail.com>:
>>>>
>>>>>
>>>>> ---------- Forwarded message ----------
>>>>> From: Jonathan Pryor <jonpryor at vt.edu>
>>>>> Date: 2014-11-25 17:47 GMT+02:00
>>>>> Subject: Re: [Mono-dev] Using .so file in Android Library Project and
>>>>> then using it in an Android App
>>>>> To: Burhan Eyuboglu <burhaneyuboglu at gmail.com>
>>>>>
>>>>>
>>>>> On Nov 25, 2014, at 7:17 AM, Burhan Eyuboglu <burhaneyuboglu at gmail.com>
>>>>> wrote:
>>>>> > I was trying to import with wrong name : "cylibusb". My library's
>>>>> name is libcyusb.so.
>>>>> > You said that libcyusb.so should be in the .apk files in the
>>>>> previous mails, however I open the apk files (armeabi-v7a) and copy the
>>>>> libcyusb.so into them and run the application,then it gives same error and
>>>>> when I look at apk files after runining, there is no libcyusb.so in them.
>>>>> >
>>>>> > How can I put libcyusb.so to the lib/armeabi-v7a?
>>>>>
>>>>> You need to add libcyusb.so to your project with a Build action of
>>>>> AndroidNativeLibrary.
>>>>>
>>>>> When adding libcyusb.so to your project, it must be located in a
>>>>> directory that matches the ABI, e.g. you should have a
>>>>> native-libs\armeabi-v7a\libcyusb.so file, and add that file to your project
>>>>> with a Build action of AndroidNativeLibrary.
>>>>>
>>>>>  - Jon
>>>>>
>>>>>
>>>>> I need .so file with AndroidLibraryProject not with
>>>>> AndroidApplicationProject, and in the AndroidLibraryProject, there is no
>>>>> lib or lib/armeabi-v7a folder. Where can I put libcyusb.so?
>>>>>
>>>>
>>>> _______________________________________________
>>>> Mono-devel-list mailing list
>>>> Mono-devel-list at lists.ximian.com
>>>> http://lists.ximian.com/mailman/listinfo/mono-devel-list
>>>>
>>>
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