Debugging Apps That Have Been Submitted or Deployed To reproduce bugs that appear in the submitted build of your app, use the Archive feature in Xcode to test the exact build of your app that was submitted to the App Store or Mac App Store. Find out more about this and other processes to resolve issues reported by users or App Review. Debug Console input uses the mode of the active editor, which means that the Debug Console input supports syntax coloring, indentation, auto closing of quotes, and other language features. Note: You must be in a running debug session to use the Debug Console REPL. This is the recommended way to set up Visual Studio for Mac for debugging with Unity. If Visual Studio for Mac is already installed on your computer, use its Extension Manager to locate and install the Visual Studio Tools for Unity plug-in. JetBrains Rider. The default installation of JetBrains Rider can debug code in Unity on Windows or Mac. Learn how to debug energy issues in your app. See the energy debugging tools on iOS and walk through debugging common energy issues in a sample app. 37:14 Mysteries of Auto Layout, Part 2. WWDC 2015; iOS, macOS; Continue your pursuit of Auto Layout mastery. Gain high level insight into how Auto Layout works, and strategies for debugging layout. Jun 04, 2016 Debug Mac log files with the Mac Console app. An easy way to debug Mac problems and check all of your Mac OS X log files at one time is with the Mac Console application. To start the Mac Console application, just follow these steps: Click Applications; Click Utilities; Click the Mac Console icon.

What Is Debug For Mac

If you work on a Mac OS X 10.9 Mavericks or later, you will run into the problem of Eclipse refusing to interactively debug problems that otherwise build and run fine: An attempt to start a debugging session by selecting Run
Debug
from the menu will result in Eclipse complaining that an Error with command: gdb --version has occurred.

The problem is caused by Apple switching away from GDB, the GNU debugger, to LLDB, the LLVM debugger, in their Xcode toolchain (along with the transition from GCC to Clang). Unfortunately, Eclipse is not capable of communicating with any debugger other than GDB (yet). Here is a step-by-step guide for installing and configuring GDB.

Installing GDB

As with GCC, the easiest way to install GDB is through Homebrew. In a Terminal window, run the command brew install gdb, and wait for it to complete. (As usual, it may ask for your password.)

Now, we need to code-sign the GDB executable, so it will be allowed to control other processes, as necessary for a debugger. For that, we will first create a new certificate in Keychain.

What Is Debug For Mac

Creating a Certificate

Open the Keychain Access application (can be found in Applications/Utilities directory or through Spotlight). Select Certificate Assistant
Create a Certificate
in the application menu (Keychain Access). An assistant window will appear for guiding you through the process.

  1. First, you will be asked for the name and type of the certificate. You may choose the name arbitrarily, but to simplify its future use in command line, prefer names without spaces or other fancy characters, e.g., gdbcert.
  2. Make sure that Identity Type is set to Self Signed Root, change Certificate Type to Code Signing, check the Let me override defaults checkbox, and click Continue. Click Continue again in the popup prompt warning about the certificate being self-signed.
  3. On the next page, leave Security Number to be 1, and set Validity Period to a large enough number of days to cover the duration of the class or more, say, 365. (Certificates cannot last forever; the maximum validity period is 20 years.)
  4. Then click Continue once again, and keep doing so to skip the next six screens until you see the one entitled Specify a Location For The Certificate. For the only property, Keychain, choose System from the drop-down list. Lastly, click Create, type in your password, if prompted, and click Done.
  5. Back in the main window, choose the System keychain in the sidebar on the left, and select the newly created certificate from the list. Open the context menu and select Get Info. In the information window that will appear, expand the Trust section and set the Code Signing property to Always Trust. Close this window (you may be asked for your password), and quit Keychain Access.

Signing GDB

Our new certificate is now ready to be used. In order to make it immediately available for signing, we need to restart the Taskgate access-control service. You can use Activity Monitor to do this (also found in Applications/Utilities). Open it and filter the list of processes by typing taskgated in the search field in the toolbar. (If you cannot find it, make sure the menu item View
All Processes
is checked.)

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There should be exactly one process left in the list. Highlight it, then select View
Quit Process
from the menu, and click Quit in the popup prompt. The Taskgate process will be terminated and, consequently, should disappear from the list. In a few seconds, it will be restarted by the system and should reappear in the list. Please wait for this to happen (it may take up to a minute or two, at worst).

Finally, in a Terminal window, run codesign -s gdbcert /usr/local/bin/gdb (if you named your certificate differently, replace gdbcert with its name here). Once again, you will be prompted for you username and password. If the command does not produce any output, then GDB is successfully signed.

Debug Formatter

Configuring Eclipse

The only thing left to do is to point Eclipse to the GDB executable. Open Eclipse
Preferences
from the main menu (not to be confused with Project Preferences). In the tree of options listed in the sidebar, navigate to C/C++
Debug
GDB
, and set the GDB debugger field to /usr/local/bin/gdb.

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What Is Debug For Mac Operating System

If there is no GDB section in the C/C++
Debug
subtree, close the preferences window, and try to first start a debugging session for any project that you can already run without problems. You can do it by either clicking the Debug button on the toolbar, or selecting Run
Debug
from the main menu. This attempt will, of course, fail with an error message about the gdb command, but it will force the said C/C++
Debug
GDB
settings to appear in the preferences.

For

What Is Debug For Mac Operating System

This will change the GDB executable for new projects; for all existing ones (that you are going to use debugging for), you will need to manually update their debug configurations. To do that, select Run
Debug Configurations
from the menu. In the window that appears, one after another, select every project under the C++ Application section in the sidebar. For each of them, open the Debugger tab, set the GDB debugger field to the same path /usr/local/bin/gdb, and click the Apply button. After repeating this change for all listed projects, click Close.

What Is Debug For Mac Catalina

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If the above steps do not solve the issue on your machine, or you encounter a problem while following them, please do not hesitate to come to one of the upcoming common labs for help.

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