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List:       pykde
Subject:    [PyQt] Tips for debugging pyqtdeploy on android?
From:       <bootch () nc ! rr ! com>
Date:       2014-08-28 14:09:13
Message-ID: 20140828140913.5R64H.63122.root () cdptpa-web26
[Download RAW message or body]

Attempting to run or debug a pyqtdeployed helloworld app from QtCreator.  I get in application \
output window:

...
D/dalvikvm( 1601): Added shared lib \
/data/data/org.qtproject.example.hello/qt-reserved-files/plugins/platforms/android/libqtforandroid.so \
0xb2cb3150 I/Qt      ( 1601): qt start
...
D/dalvikvm( 1601): Added shared lib /data/app-lib/org.qtproject.example.hello-1/libhello.so \
0xb2cb3150 D/dalvikvm( 1601): No JNI_OnLoad found in \
/data/app-lib/org.qtproject.example.hello-1/libhello.so 0xb2cb3150, skipping init I/Qt JAVA ( \
1601): DEBUGGER: extra parameters: Bundle[{debug_ping=true, \
gdbserver_socket=/data/data/org.qtproject.example.hello/debug-socket, \
gdbserver_command=/data/data/org.qtproject.example.hello/lib/gdbserver --multi \
+/data/data/org.qtproject.example.hello/debug-socket, \
load_local_jars=jar/QtAndroid-bundled.jar:jar/QtAndroidAccessibility-bundled.jar:, \
load_local_libs=plugins/platforms/android/libqtforandroid.so:, use_local_qt_libs=true, \
libs_prefix=/data/local/tmp/qt/, ping_file=/data/data/org.qtproject.example.hello/debug-ping, \
static_init_classes=:, pong_file=/data/local/tmp/qt/debug-pong-org.qtproject.example.hello}] \
I/Qt JAVA ( 1601): DEBUGGER: removing ping file \
/data/data/org.qtproject.example.hello/debug-ping I/Qt JAVA ( 1601): DEBUGGER: removing pong \
file /data/local/tmp/qt/debug-pong-org.qtproject.example.hello I/Qt JAVA ( 1601): DEBUGGER: \
starting /data/data/org.qtproject.example.hello/lib/gdbserver --multi \
+/data/data/org.qtproject.example.hello/debug-socket I/Qt JAVA ( 1601): DEBUGGER: gdbserver \
started I/Qt JAVA ( 1601): DEBUGGER: waiting for socket at \
                /data/data/org.qtproject.example.hello/debug-socket, attempt 0
...
D/dalvikvm( 1601): GC_CONCURRENT freed 214K, 14% free 2136K/2484K, paused 12ms+3ms, total 53ms
...
I/Qt JAVA ( 1601): DEBUGGER: waiting for pong at \
/data/local/tmp/qt/debug-pong-org.qtproject.example.hello, attempt 7 I/Qt JAVA ( 1601): \
DEBUGGER: go to sleep Could not load shared library symbols for 82 libraries, e.g. \
/system/bin/linker. Use the "info sharedlibrary" command to see the complete listing.
Do you need "set solib-search-path" or "set sysroot"?Unable to find dynamic linker breakpoint \
function. GDB will be unable to debug shared library initializers
and track explicitly loaded dynamic code.I/Qt JAVA ( 1601): DEBUGGER: waiting for pong at \
/data/local/tmp/qt/debug-pong-org.qtproject.example.hello, attempt 8 I/Qt JAVA ( 1601): \
DEBUGGER: got pong /data/local/tmp/qt/debug-pong-org.qtproject.example.hello D/        ( 1601): \
HostConnection::get() New Host Connection established 0xb7d22d90, tid 1601 W/EGL_emulation( \
1601): eglSurfaceAttrib not implemented D/OpenGLRenderer( 1601): Enabling debug mode 0
Debugging has finished

"org.qtproject.example.hello" terminated.


Some of the logcat:

I/ActivityManager(  360): Start proc org.qtproject.example.hello for activity \
org.qtproject.example.hello/org.qtproject.qt5.android.bindings.QtActivity: pid=1460 uid=10018 \
gids={50018, 3003, 1028, 1015}^M W/WindowManager(  360): Screenshot failure taking screenshot \
for (302x176) to layer 21005^M I/ActivityManager(  360): Process org.qtproject.example.hello \
(pid 1460) has died.^

I'm new at Android.  I don't understand which messages are important.

It seems like the app is crashing before the debugger gets started, so the debugger can't \
produce a crash dump.

I suppose I should resort to harnessing the code with writes to logcat (or is Qt Creator \
redirecting stdout/stderr to the "application output" window?)

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