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I wanted to trace the system calls made by the find command to debug some performance issues however I could not figure out how to do this on Mac OS X Yosemite. How can I trace system calls for an arbitrary program similarly to what strace does on FreeBSD? I am especially interested in tracing file-system related calls.
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Under current versions of macOS, executables under paths covered by SIP (like
/usr/bin) cannot be traced.You can bypass this by making a copy of the executable in your home directory and tracing the copy:
You can use dtruss like in
The manual page of that utility will help you to tailor the use of the tool to your needs.