I have a Android native code, which comprises of a static library(XXX.a) and the final ndk-build command(with NDK_DEBUG set to 1) takes the above prebuilt static library and creates a shared object.
I use the nm command to look into the shared object for a particular function definition and it seems to be available( 001ff2f5 T XXXXX).
But when I run ndk-gdb on Android device running 4.4.2, gdb fails to load the shared object symbols :
Android NDK installation path: /opt/android-ndk-r8
Using specific adb command: ~/Desktop/adt-bundle-linux-x86-20131030/sdk/platform-tools/adb
ADB version found: Android Debug Bridge version 1.0.31
Using ADB flags:
Using auto-detected project path: .
Found package name: com.example.ue2fileviewer
ABIs targetted by application: armeabi
Device API Level: 19
Device CPU ABIs: armeabi-v7a armeabi
Compatible device ABI: armeabi
Using gdb setup init: ./libs/armeabi/gdb.setup
Using toolchain prefix: /opt/android-ndk-r8/toolchains/arm-linux-androideabi-4.4.3/prebuilt/linux-x86/bin/arm-linux-androideabi-
Using app out directory: ./obj/local/armeabi
Found debuggable flag: true
Found device gdbserver: /data/data/com.example.ue2fileviewer/lib/gdbserver
Found data directory: '/data/data/com.example.ue2fileviewer'
Found first launchable activity: .UE2FvSample
Launching activity: com.example.ue2fileviewer/.UE2FvSample
COMMAND: ~/Desktop/adt-bundle-linux-x86-20131030/sdk/platform-tools/adb shell am start -n com.example.ue2fileviewer/.UE2FvSample
Starting: Intent { cmp=com.example.ue2fileviewer/.UE2FvSample }
COMMAND:~/Desktop/adt-bundle-linux-x86-20131030/sdk/platform-tools/adb shell sleep 10
Found running PID: 1650
Killing existing debugging session
COMMAND: ~/Desktop/adt-bundle-linux-x86-20131030/sdk/platform-tools/adb shell kill -9 29470
/system/bin/sh: kill: 29470: Operation not permitted
Launched gdbserver succesfully.
Setup network redirection
COMMAND:~/Desktop/adt-bundle-linux-x86-20131030/sdk/platform-tools/adb forward tcp:5039 localfilesystem:/data/data/com.example.ue2fileviewer/debug-socket
COMMAND: ~/Desktop/adt-bundle-linux-x86-20131030/sdk/platform-tools/adb shell run-as com.example.ue2fileviewer lib/gdbserver +debug-socket --attach 1650
COMMAND: ~/Desktop/adt-bundle-linux-x86-20131030/sdk/platform-tools/adb pull /system/bin/app_process ./obj/local/armeabi/app_process
Attached; pid = 1650
Listening on sockaddr socket debug-socket
106 KB/s (9560 bytes in 0.087s)
Pulled app_process from device/emulator.
COMMAND: ~/Desktop/adt-bundle-linux-x86-20131030/sdk/platform-tools/adb pull /system/lib/libc.so ./obj/local/armeabi/libc.so
780 KB/s (310652 bytes in 0.388s)
Pulled libc.so from device/emulator.
GNU gdb 6.6
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GDB is free software, covered by the GNU General Public License, and you are
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Type "show copying" to see the conditions.
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This GDB was configured as "--host=i386-linux-gnu --target=arm-elf-linux".
(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
0x4004f73c in ?? ()
gdb: Unable to get location for thread creation breakpoint: requested event is not supported
(gdb)
I am running it on Ubuntu, ndk-r8 NDK version and on Android SDK Platform android-19.
I have tried almost all posts currently available in stack overflow but none of it seems to work for me. I have been trying to set a breakpoint in the function present in the static library but with no success.
Can someone please provide an insight of where I might be going wrong and how to proceed from here to get ndk-gdb debugging working?
