I have a problem getting the native debugging support to work for my Eclipse project under Windows for Android. Google unfortunately didn't help after more than 1 day of research.
I am pretty much a beginner with eclipse, so the solution might be easy because I do also some non-standard things I guess.
My android project is already functioning and running fine on my devices (Acer Iconia A500 Android 3.2.1, HTC Incredible S Android 4.0.4 etc.).
I created the project with the ADT Plugin Wizard and then added native support by using the project context menu entry added by ADT.
I then added the java files I already had (previously I used to compile with CMake and the Android stand-alone toolchain, though I never tried to remote debug this way). I created a new package for that "com.x.y" where I dropped them on to (I don't want to reveal the real package name as the project will be part of a commercial product).
Then I added my Sources by dragging them into the jni folder. The sources are not located inside the jni folder but are linked to a location "../../" below the project (Its part of a cross platform application so I can reuse the source files accross different toolchains).
I also link against 4 static libraries that will be shipped with the product by adjusting the Android.mk the following way:
LOCAL_PATH := $(call my-dir)
MY_PATH := $(LOCAL_PATH)
LOCAL_PATH := $(MY_SDK)/lib/Android/armeabi-v7aD
include $(CLEAR_VARS)
LOCAL_MODULE := A
LOCAL_SRC_FILES := libA.a
include $(PREBUILT_STATIC_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := B
LOCAL_SRC_FILES := libB.a
include $(PREBUILT_STATIC_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := C
LOCAL_SRC_FILES := libC.a
include $(PREBUILT_STATIC_LIBRARY)
include $(CLEAR_VARS)
LOCAL_MODULE := D
LOCAL_SRC_FILES := libD.a
include $(PREBUILT_STATIC_LIBRARY)
include $(CLEAR_VARS)
LOCAL_C_INCLUDES += $(my_SDK)/include/
LOCAL_PATH := $(MY_PATH)/../../..
LOCAL_CFLAGS += -Wno-format -DANDROID -fno-rtti -fno-exceptions #And many other flags If they are important I will post them later, too
LOCAL_CPPFLAGS += -fno-rtti -fno-exceptions
LOCAL_MODULE := MY_PROJECT
LOCAL_SRC_FILES := Android/Main.cpp # Some other sources..
LOCAL_LDLIBS := -lstdc++ -lEGL -lGLESv2 -llog -Wl,--allow-multiple-definition -Wl,--no-undefined
LOCAL_STATIC_LIBRARIES := A B C D
include $(BUILD_SHARED_LIBRARY)
I also have a Application.mk:
APP_ABI := armeabi-v7a
APP_PLATFORM := android-9
APP_STL := stlport_static
APP_CFLAGS += -fno-rtti -fno-exceptions
Then I added under Debug Configurations a new "Android Native Application" launching the default Activity and using
Debugger "${NdkGdb}"
Command File "${NdkProject}\libs\${NdkCompatAbi}\gdb.setup"
Shared Libraries (Added automatically) ${NdkProject}/obj/local/$NdkCompatAbi}/
The rest is also added automatically and I think should work this way.
One thing that I think is odd is that I get the console Output
[2013-03-08 10:50:36 - Unable to launch cygpath. Is Cygwin on the path?] java.io.IOException: Cannot run program "cygpath": CreateProcess error=2, The system cannot find the file specified
But I can build the project fine this way and later I don't get any warnings trying to attach gdb (I am using Msys, I also have cygwin installed so I don't know why Eclipse is complaining here).
When I launch the application, it starts up on the device and then I get the following Console output([Android Native Application] gdb):
(no debugging symbols found)
Error while mapping shared library sections:
/system/bin/linker: No such file or directory.
Error while mapping shared library sections:
libstdc++.so: No such file or directory.
... And alot more of that type
(no debugging symbols found)
warning: Unable to find dynamic linker breakpoint function.
GDB will be unable to debug shared library initializers
and track explicitly loaded dynamic code.
warning: shared library handler failed to enable breakpoint
No line 219 in file "jni/../../../MySourceFile.cpp".
I definitely build with NDK_DEBUG=1, my static .a Libraries are build with -g AndroidManifest.xml has an entry android:debuggable="true".
When I run "sh /ndk-gdb --verbose" in the eclipse project directory (using Msys) I get the following output:
Android NDK installation path: /c/SDK/android-ndk-r7 Using default adb command: /c/SDK/android-sdks/platform-tools/adb.exe ADB version found: Android Debug Bridge version 1.0.31 Using final ADB command: '/c/SDK/android-sdks/platform-tools/adb.exe' Using auto-detected project path: . Found package name: com.x.y ABIs targetted by application: armeabi-v7a Device API Level: 13 Device CPU ABIs: armeabi-v7a armeabi Compatible device ABI: armeabi-v7a Found debuggable flag: true ERROR: Non-debuggable application installed on the target device. Please re-install the debuggable version!
I really want to have native debugging support for this project. So I really appreciate any help.
Is it true that I have to use cygwin? I don't get any reasonable error message for that while trying to attach the debugger.
