modify your Android.mk add below command "LOCAL_CPPFLAGS += -g" for C++ files and "LOCAL_CFLAGS += -G" FOR C files.
rebuild your library and system image(if necessary)
2. in your local system redirect the debug port
$ telnet localhost 5554
redir add tcp:1234:1234
exit
3.you can start emulator by below command with debug port redirected.
./emulator -avd avdname -qemu -redir udp:1234::1234
4. push gdbserver to emulator
adb push ./out/target/product/generic/obj/EXECUTABLES/gdbserver_intermediates/gdbserver /system/bin/
5. run # gdbserver :1234 --attach your-desired-pid or gdbserver :1234 desired_process
6. run ./prebuilt/linux-x86/toolchain/arm-eabi-4.2.1/bin/arm-eabi-gdb ./out/target/product/generic/symbols/system/bin/app_process
7. in gdb-terminal
gdb>set solib-search-path out/target/product/generic/symbols/system/lib
In case there are multiple library paths to be searched, use ':' to concatenate the paths
gdb>target remote localhost:1234
8. Now you can see the Errors .... Happy remote Debugging!!!!
Common Error:
Malformed packet(b) (missing colon): re:0;
Packet: 'T050b:00000000;0d:c03ecebe;0f:b0070040;thread:4ab;core:0;'
This means the gdbserver and gdb in localhost are not compatible!!
