手機 - Blackberry Passport - 如何透過GDB Debug Native App

參考資訊：
https://wiki.qt.io/Remote_debugging_on_Blackberry_devices

main.c

#include <stdio.h>

int main(int argc, char** argv)
{
    printf("This is a testing for Blackberry 10\n");
    return 0;
}

bar-descriptor.xml

<?xml version="1.0" encoding="utf-8" standalone="no"?>
<qnx xmlns="http://www.qnx.com/schemas/application/1.0">
    <id>com.Steward.main</id>
    <name>main</name>
    <filename>main</filename>
    <versionNumber>1.0.0</versionNumber>
    <buildId>1</buildId>
    <description>Testing for Blackberry 10</description>
    <author>Steward</author>
    <authorId>gYAAgGE4qaHzBnzEAu8JKe4G1OI</authorId>
    <asset path="main" entry="true" type="Qnx/Elf">main</asset>
</qnx>

1. 編譯檔案

$ source ~/bbndk/bbndk-*.sh
$ ntoarmv7-gcc -g -o main main.c
$ blackberry-nativepackager -package main.bar bar-descriptor.xml -devMode -debugToken ${HOME}/.rim/debugtoken_q30.bar

2. 透過Chrome安裝main.bar到手機上
3. 建立ssh連線

$ ssh-keygen -b 4096 -f ~/.ssh/id_rsa_4096
$ blackberry-connect xxx.xxx.xxx.xxx -password xxx -sshPublicKey ~/.ssh/id_rsa_4096.pub
    Info: Connecting to target xxx.xxx.xxx.xxx:4455
    Info: Authenticating with target xxx.xxx.xxx.xxx:4455
    Info: Encryption parameters verified
    Info: Authenticating with target credentials.
    Info: Successfully authenticated with target credentials.
    Info: Sending ssh key to target xxx.xxx.xxx.xxx:4455
    Info: ssh key successfully transferred.
    Info: Successfully connected. This application must remain running in order to use debug tools. Exiting the application will terminate this connection.

4. 開啟另一個Terminal視窗並且Deploy main.bar(result的結果就是PID)

$ blackberry-deploy -debugNative -device xxx.xxx.xxx.xxx -password xxx -launchApp main.bar
    Info: Sending request: LAUNCH
    Info: Action: Launch
    Info: Debug native: on
    Info: Launching com.Steward.main.testDev_teward_main13c0fbb4...
    result::15708394
    Info: done

5. Debug main.bar

$ ntoarm-gdb

(gdb) target qnx xxx.xxx.xxx.xxx:8000 
    Remote debugging using xxx.xxx.xxx.xxx:8000
    MsgNak received - resending
    Remote target is little-endian

(gdb) attach 15708394
    Attaching to pid 15708394
    [New pid 15708394 tid 1]
    warning: Shared object "/usr/lib/ldqnx.so.2" could not be validated and will be ignored.
    warning: Could not load shared library symbols for /usr/lib/ldqnx.so.2.
    Do you need "set solib-search-path" or "set sysroot"?
    warning: Host file /usr/lib/ldqnx.so.2 does not match target file <?>
    0x017e3918 in ?? ()

(gdb) file main
    A program is being debugged already.
    Are you sure you want to change the file? (y or n) y
    Reading symbols from /home/steward/Downloads/main...done.

(gdb) set solib-search-path $BBNDK/target_10_3_1_995/qnx6/armle-v7/lib/:$BBNDK/target_10_3_1_995/qnx6/armle-v7/usr/lib
    warning: Shared object "/usr/lib/ldqnx.so.2" could not be validated and will be ignored.
    warning: Shared object "/usr/lib/ldqnx.so.2" could not be validated and will be ignored.
    warning: Could not load shared library symbols for /usr/lib/ldqnx.so.2.
    Do you need "set solib-search-path" or "set sysroot"?
    warning: Host file /usr/lib/ldqnx.so.2 does not match target file <?>
    Cannot access memory at address 0x0

(gdb) b main
    Cannot access memory at address 0x0
    Breakpoint 1 at 0x10c6786e: file main.c, line 5.

(gdb) c
    Continuing.

    Breakpoint 1, main (argc=1, argv=0x106061c4) at main.c:5
    5  printf("This is a testing for Blackberry 10\n");

(gdb) quit

使用者也可以透過SSH登入並直接到Appdata目錄執行，如下所示：

$ pwd
    /accounts/1000/appdata/com.Steward.main.testDev_teward_main13c0fbb4/app/native

$ ./main 
    This is a testing for Blackberry 10

P.S. 如果該App不是在目前登入的電腦上製作的話，基本上，使用者是沒有權限進入該App資料夾執行的