Segmentation fault: 11 when attempting to codesign .app

Question

I haven\'t been able to find a definition for this error in relation to codesigning. I\'m really quite stumped as of what to do.

The error occurs when attempting to exec

Answer 1

I've encountered this in Xcode 8.3.2 when I inadvertently wound up with duplicates of my signing certificates. @kristina's answer gave me the clue; $ security find-identity -v showed me two entries with identical hashes. I fixed it by deleting the first certificate in the list with that hash, via:

$ sudo security delete-certificate -Z <SHA hash>

Answer 2

passing --timestamp=none seems to make the crash go away. In this case, check the network settings, codesign may be unable to reach e.g. the timeserver.

Answer 3

A solution I found on the Apple forum worked for me: first, run the following command to find your identity's hex ID:

$ security find-identity -v
1) A048017A43F8C9C993128B0101B81CD07049601E "lldb_codesign"
...

Then you can use that hex identifier to sign:

codesign -s A048017A43F8C9C993128B0101B81CD07049601E /usr/local/bin/gdb

Some other tips I came across while debugging this:

• You have to give the full path to the binary (/usr/local/bin/gdb, not just gdb). It won't look on the PATH, I assume for security reasons.
• You have to run the codesign as root if the directory your binary is in is not user-owned.