MacOS

Enable core dumps

• MacOS 15.2
• change permission to /cores
• limit -c unlimited
• sign the executable
• see https://nasa.github.io/trick/howto_guides/How-to-dump-core-file-on-MacOS.html

sudo chmod 1777 /cores
sudo sysctl kern.coredump=1
ulimit -c unlimited
compile segv.c to segv
/usr/libexec/PlistBuddy -c "Add :com.apple.security.get-task-allow bool true" segv.entitlements
codesign -s - -f --entitlements segv.entitlements segv