You can always leave or enter TUI at any time durring debug session. For example you can do it with &lt;kbd&gt;ctrl&lt;/kbd&gt;+&lt;kbd&gt;x&lt;/kbd&gt; &lt;kbd&gt;a&lt;/kbd&gt; key binding. [25.2 TUI Key Bindings][1].


  [1]: http://sourceware.org/gdb/onlinedocs/gdb/TUI-Keys.html#TUI-Keys

**vi Readline input bug**

In GDB 7.7, `Ctrl-x + a` does not work if you have in your `~/.inputrc`:

    set editing-mode vi
    set keymap vi

If I remove those lines it works.

This seems to be mentioned at in the following bug report: https://sourceware.org/bugzilla/show_bug.cgi?id=15163

I have requested a workaround at https://sourceware.org/ml/gdb/2015-06/msg00009.html and Andrew Burgess replied that he had [just submitted](https://sourceware.org/ml/gdb-patches/2015-05/msg00559.html) a well received patch to add:

    tui enable
    tui disable

so in future versions we should have commands as an alternative to the shortcuts.

I have later tested this on GDB 8.1 in Ubuntu 18.04 and it worked perfectly.

But then I saw the light and moved from TUI to GDB Dashboard: https://github.com/cyrus-and/gdb-dashboard which is simply more powerful and less buggy.

See also: http://superuser.com/questions/180512/how-to-turn-off-gdb-tui

Xcode Project Scheme sharing... how to do that?

When I commit my Xcode project to SVN, I found that the schemes that I created are saved under my username folder, e.g.

abc.xcodeproj/xcuserdata/_my_user_name_.xcuserdatad/xcschemes/projectABC_debug.xcscheme

When multiple users are working on the same project, the schemes can&#39;t be shared to them since they don&#39;t have the same user name.

So, how to share the schemes among multiple users easily?

Xcode Project Scheme sharing... how to do that?

How can I make it so the screen orientation is always landscape?

Do I need to add something to the `manifest.xml`?

Android, landscape only orientation?

When debugging with GDB， i usually using layout src to check my code. But when i open it, i don&#39;t know how to close it. It seems that there are some other layout, and when open a new layout, it will split the window, but i still can not found a command to merge the splitted windows.

How to close layout SRC windows in gdb?

<p>When debugging with GDB， i usually using layout src to check my code. But when i open it, i don't know how to close it. It seems that there are some other layout, and when open a new layout, it will split the window, but i still can not found a command to merge the splitted windows.</p>


I am familiar with VS.Net IDE &amp; it has a lot of support for debugging. But the android development is something new for me. I am using the Eclipse IDE. I was wondering **how to debug the android application line by line just like we can do in .Net IDE?**

**Currently i am using the log window**, but i am not happy with it. I need suggestion from the expert guys, what is the best way to debug the Android application using Eclipse?

Great thanks for your valuable time &amp; help.

How to Debug Android application line by line using Eclipse?

It&#39;s not adding anything and it makes the page slower and I want it gone. Don&#39;t ask. There&#39;s little about the profiler on the website and nothing in the app config.

How do I disable the Symfony 2 profiler bar?

I have created an ASP.NET MVC 3 project, and am using IIS Express as the web server when developing. When I try to debug, I get the error message below.

How can this be solved?

&gt;Server Error in &#39;/&#39; Application.

&gt;Access is denied.
Description: An error occurred while accessing the resources required to serve this request. The server may not be configured for access to the requested URL.

&gt;Error message 401.2.: Unauthorized: Logon failed due to server configuration.  Verify that you have permission to view this directory or page based on the credentials you supplied and the authentication methods enabled on the Web server.  Contact the Web server&#39;s administrator for additional assistance.

IIS Express gives Access Denied error when debugging ASP.NET MVC

I am making an app that processes sensitive credit card data.

If my code is running in debug mode I want to log this data to the console and make some file dumps.   

However on the final appstore version (ie when it is running in release mode) it is essential all of this is disabled (security hazard)!

I will try to answer my question as best I can;  so the question becomes *&#39;Is this solution path the right or best way to do it?&#39;*
  
    // add `IS_DEBUG=1` to your debug build preprocessor settings  
  
    #if( IS_DEBUG )  
    #define MYLog(args...) NSLog(args)  
    #else  
    #define MYLog(args...)  
    #endif  



How to determine whether code is running in DEBUG / RELEASE build?

A dynamically-added script is not showing up in the browser&#39;s debugger&#39;s scripts section.

Explanation:

I need to use and have used

    if( someCondition == true ){
       $.getScript(&quot;myScirpt.js&quot;, function() {
           alert(&#39;Load Complete&#39;);
           myFunction();
       });
    }

so that myScript.js can be dynamically loaded on meeting some condition...
And myFunction can be called only after getting the whole script loaded...

But browsers are not showing the dynamically loaded myScript.js in their debugger&#39;s script section.

Is there another way round so that all of the goals may be achieved which will make one to be able to debug a dynamically-loaded script there in the browser itself?


How to debug dynamically loaded JavaScript (with jQuery) in the browser&#39;s debugger itself?

I typically run my program with:

    perl -e &#39;print &quot;A&quot;x200&#39; | ./vuln_prog

The stdin is consumed by a `gets()` function in C++.

If this were just a command argument, I could open gdb by doing:

    gdb ./vuln_prog
    run $(perl -e &#39;print &quot;A&quot;x200&#39;)

However, my scenario is not a command argument, but rather input (STDIN?).  How would I debug this in gdb?  I&#39;ve tried a bunch of options, but nothing seems to really work.

I would normally just run gdb on the process, and when it prompts for user input, type it in, however I&#39;m not wanting to type just &quot;A&quot;.  I want to type all chars from \x00-\xff, which I can&#39;t type.


gdb - debugging with piped input (not arguments)

I&#39;m debugging a C++ program with GDB.

I have a pointer to an object of certain class. The pointer is declared to be of some super class which is extended by several sub-classes.

There is no fields in the object to specify the precise class type of this object but some virtual functions (e.g. bool is_xxx()) are defined to tell the class type at runtime.

Is there some way to tell the precise class type of an object in GDB without calling these virtual functions. Calling such functions in GDB may generate confusing result when the program is multi-threaded.


How to determine if an object is an instance of certain derived C++ class from a pointer to a base class in GDB?

How can I permanently change the disassembly flavor in GDB.  I tried:`set disassembly-flavor intel` in GDB, but when I fire up GDB later it still has the att flavor.

Permanently Change Disassembly Flavor in GDB

I&#39;m trying to inspect a buffer which contains a binary formatted message, but also contains string data. As an example, I&#39;m using this C code:

    int main (void) {
        char buf[100] = &quot;\x01\x02\x03\x04String Data\xAA\xBB\xCC&quot;;
    
        return 0;
    }

I&#39;d like to get a hex dump of what&#39;s in `buf`, of a format similar to `xxd` (I don&#39;t care if it&#39;s an exact match, what I&#39;m really looking for is a hex dump side by side with printable chars).

Inside GDB I can use something like:

    (gdb) x /100bx buf
    0x7fffffffdf00: 0x01    0x02    0x03    0x04    0x53    0x74    0x72    0x69
    0x7fffffffdf08: 0x6e    0x67    0x20    0x44    0x61    0x74    0x61    0xaa
    0x7fffffffdf10: 0xbb    0xcc    0x00    0x00    0x00    0x00    0x00    0x00
    0x7fffffffdf18: 0x00    0x00    0x00    0x00    0x00    0x00    0x00    0x00
    0x7fffffffdf20: 0x00    0x00    0x00    0x00    0x00    0x00    0x00    0x00
    0x7fffffffdf28: 0x00    0x00    0x00    0x00    0x00    0x00    0x00    0x00
    0x7fffffffdf30: 0x00    0x00    0x00    0x00    0x00    0x00    0x00    0x00
    0x7fffffffdf38: 0x00    0x00    0x00    0x00    0x00    0x00    0x00    0x00
    0x7fffffffdf40: 0x00    0x00    0x00    0x00    0x00    0x00    0x00    0x00
    0x7fffffffdf48: 0x00    0x00    0x00    0x00    0x00    0x00    0x00    0x00
    0x7fffffffdf50: 0x00    0x00    0x00    0x00    0x00    0x00    0x00    0x00
    0x7fffffffdf58: 0x00    0x00    0x00    0x00    0x00    0x00    0x00    0x00

which is fine, but it&#39;s hard to pick out strings that way... or I can use

    (gdb) x /100bs buf
    0x7fffffffdf00:  &quot;\001\002\003\004String Data\252\273\314&quot;
    0x7fffffffdf13:  &quot;&quot;
    0x7fffffffdf14:  &quot;&quot;
    0x7fffffffdf15:  &quot;&quot;
    0x7fffffffdf16:  &quot;&quot;
    0x7fffffffdf17:  &quot;&quot;
    ...

which makes it hard to read the binary part... the actual messages I&#39;m dealing with have plenty of ascii nul&#39;s in them, too, so really it just looks like a mess.

The best I can come up with is to do this:

    (gdb) dump binary memory dump.bin buf buf+100

and then

    $ xxd dump.bin
    0000000: 0102 0304 5374 7269 6e67 2044 6174 61aa  ....String Data.
    0000010: bbcc 0000 0000 0000 0000 0000 0000 0000  ................
    0000020: 0000 0000 0000 0000 0000 0000 0000 0000  ................
    0000030: 0000 0000 0000 0000 0000 0000 0000 0000  ................
    0000040: 0000 0000 0000 0000 0000 0000 0000 0000  ................
    0000050: 0000 0000 0000 0000 0000 0000 0000 0000  ................
    0000060: 0000 0000                                ....

but that&#39;s a pain to do that every time. I figured somebody out there has wanted this before, so wondering if anybody has found a way to do it inside gdb.  Plus you lose the addresses from the original memory this way.

I&#39;m using GDB 7.4 with python support built in, so I&#39;m open to the idea of using a pretty printer or similar, but I don&#39;t know how to set that up.


Memory dump formatted like xxd from gdb

I keep getting this error mesage when trying to add a breakpoint in gdb.

I&#39;ve used these commands to compile:

    gcc -g main.c utmpib2.c -o main.o
    and:
    cc -g main.c utmpib2.c -o main.o
    and also:
    g++ -g main.c utmpib2.c -o main.o

I also tried &quot;-ggdb&quot; instead of &quot;-g&quot; and I still get that error message.

I then execute gdb:

    $gdb

In gdb:

    (gdb)exec-file main.o
    (gdb)break 59
    No symbol table is loaded. Use the &quot;file&quot; command.



Content Type	Original Author	Original Content on Stackoverflow
Question	Frank Cheng	View Question on Stackoverflow
Solution 1 - Debugging	ks1322	View Answer on Stackoverflow
Solution 2 - Debugging	Ciro Santilli Путлер Капут 六四事	View Answer on Stackoverflow

How to close layout SRC windows in gdb?

Debugging Problem Overview

Debugging Solutions

Solution 1 - Debugging

Solution 2 - Debugging

Android, landscape only orientation?

Xcode Project Scheme sharing... how to do that?

Attributions