Hi,
I am creating an android JNI library, that in turn uses a
native linux library to access a particular device.
Here is a snippet from the android jni project's Android.mk file,
where libdevice is the external library.
# All of the shared libraries we link against.
LOCAL_SHARED_LIBRARIES := \
libandroid_runtime \
libnativehelper \
libcutils \
libutils \
libdevice
Now I've already created libdevice library and built the libdevice.so
shared library using the OpenEmbedded build system and it is available
on my target.
But the moment, I say I want to link to libdevice, in my JNI project's
Android.mk file as shown above, it expects to find a libdevice android
project.
Question 01: Is it really necessary to have an external android
project for it to work with android? Can I edit the jni project's
Android.mk so that it uses the pre-build shared library files and
headers locate under /usr/lib/ on the target device? i.e, Is there a
workaround for this type of situation?
Question 02: Suppose I decide to go ahead and create an external
project, which I've already done and stored it under
/external/device
What should I be adding to my Android.mk so that the following headers
of my device.cpp file can
#include <string>
#include <vector>
#include <stdexcept>
can be found?
At the moment I get the following errors:
external/libdevice/src/Device.h:24:18: error: string: No such file or
directory
external/libdevice/src/Device.h:25:18: error: vector: No such file or
directory
external/libdevice/src/Device.h:26:21: error: stdexcept: No such file
or directory
What should I do to make the external/device/Android.mk file pick up
string, vector and stdexcept?
Here is a copy of my Android.mk file for the libdevice external
project:
#ifneq ($(TARGET_ARCH),arm)
LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
LOCAL_CXXFLAGS += -Weffc++
LOCAL_SRC_FILES := src/device.cpp
LOCAL_C_INCLUDES :=
#LOCAL_STATIC_LIBRARIES :=
LOCAL_MODULE:= libserial
LOCAL_COPY_HEADERS_TO := libdevice
LOCAL_COPY_HEADERS := src/device.h
include $(BUILD_SHARED_LIBRARY)
#endif
Best regards,
Elvis
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