gdb on macOS 10.12 "Sierra"

Jonas Maebe
Mon Oct 31 11:54:00 GMT 2016

Tristan Gingold wrote:
>> On 01 Oct 2016, at 14:08, Jonas Maebe <> wrote:
>> Has anyone succeeded yet in getting gdb to work on macOS 10.12? Reportedly, it works when you disable SIP (which is understandable, given ), but plain code signing no longer seems to cut it.
> No, I haven't tried yet.  Did you investigate if lldb has updated its build instructions ?

I finally got time to look into this. lldb's codesigning instructions
are at .
They have not been updated recently, but they do differ from gdb's.
However, the result is exactly the same: SIG113.

I've also asked on the darwin-dev@apple list, but did not get any
replies there.


I've now tried building lldb, and regardless of whether I use the GDB or
LLDB-style codesigning certificate to sign debugserver (lldb itself does
not need codesigning), it works. So it seems like the problem is not
necessarily related to codesigning per se.


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