Set Location to Login, Unlock System by click on the lock at the top left corner and drag and drop the certificate gdbcert to the System Keychain.

I had no success using gdb with Eclipse Oxygen.2 Release (4.7.2).

In the upper left corner of the window is a lock that says login and another that says System.

You may have to set this every time but at least it works:((.

I am using OS X 10.13.6 and gdb version is 8.1.1 I have successfully finished the first nine steps you gave.

And under the recover mode, it returns the same as I input csrutil enable --without debug, both returns csrutil: requesting an unsupported configuration.

This is likely to break in the future and leave your machine in an unknown state.

But the Eclipse still tells me gdb cannot be run due to unknow reason.

Codesign gdb using your certificate: codesign -fs gdbc usrlocalbingdb.

You can use lldb, but that throws some errors too sometimes.

But i still have one problem: when starting debugging, there is an error: New Thread 0xc03 of process 36990 New Thread 0x1003 of process 36990 During startup program terminated with signal, Unknown signal.

Unable to find Mach task port for process-id 1510: (oskern) failure (0x5).

During startup program terminated with signal, Unknown signal.

I followed your instructions, but now have an additional problem.

However, sometimes in doesnt, in these cases, I just restart the application and then it works most of the time.

When system libraries are loaded from cache, their segments are split in groups: first all TEXT segments, then all DATA segments, etc (this can be seen in vmmap --interleaved ).

However, GDB expects segments for a single library to follow each other (see GDBs code darwinrelocatesectionaddresses ).

Apples fork of GDB had support for dyld cache, see getsectoffsforsharedcachedylib, but Apples GDB was discontinued in 2013 and replaced with LLDB.

So the simplest workaround is to disable dyld cache for specific process.

Install Gbd For Mac