[lldb-dev] Can't debug "hello, world" with stock lldb from XCode 5?

[Greg Clayton]

You must have made your "lldb_codesign" prior to installing 10.9?

If you didn't please follow the instructions:

    % svn cat http://llvm.org/svn/llvm-project/lldb/trunk/docs/code-signing.txt

If you already have a "lldb_codesign", it now needs to be marked as trusted again after the recent OS install. This is easier than doing everything from scratch, you just need to do:

- Launch /Applications/Utilities/Keychain Access.app
- Drag the existing "lldb_codesign" code signing certificate from the "login" keychain to the "System" keychain in the 
- In the Keychain Access GUI, click and drag "lldb_codesign" in the "System" keychain onto the desktop. The drag will create a "~/Desktop/lldb_codesign.cer" file used in the next step.
- Switch to Terminal, and run the following:

% sudo security add-trust -d -r trustRoot -p basic -p codeSign -k /Library/Keychains/System.keychain ~/Desktop/lldb_codesign.cer
% rm -f ~/Desktop/lldb_codesign.cer

- Drag the "lldb_codesign" certificate from the "System" keychain back into the "login" keychain
- Quit Keychain Access
- delete your old LLDB build folder as it has been code signed by an invalid code signature and will be cached by the kernel
- Reboot

You can also run lldb with "sudo" and it will work regardless of the code signing...

On Jan 29, 2014, at 1:43 PM, Dan Kegel <dank at kegel.com> wrote:

> Hi!
> I just installed a fresh copy of Mac OS X 10.9, and on that, XCode 5.
> Alas, it doesn't seem to be able to debug a trivial C program:
> 
> $ lldb --version
> lldb-300.2.53
> $ gcc -g hello.c
> $ lldb ./a.out
> 2014-01-29 13:42:20.095 lldb[273:262f] Metadata.framework [Error]:
> couldn't get the client port
> Current executable set to './a.out' (x86_64).
> (lldb) run
> Process 3511 launched: './a.out' (x86_64)
> error: initial process state wasn't stopped: exited
> 
> Can I buy a clue?
> 
> Thanks!
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