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<p class="MsoNormal"><span style="font-size:11.0pt">I just added ad-hoc code signing to the new LLD MachO port:
<a href="https://reviews.llvm.org/D96164">https://reviews.llvm.org/D96164</a><br>
<br>
Observe what happens for a simple “hello world” test program:<br>
1) Build with ld64.lld.darwinnew<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">2) Attempt to run. It dies immediately with SIGKILL<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">3) Wait a few hours<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">4) The same program now runs<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">5) Rebuild as in step (1). cmp(1) says it is byte-for-byte identical with the program built at step (1).<br>
6) Attempt to run. It dies immediately with SIGKILL<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">7) Use cp(1) to copy the program built in step (5)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">8) The step (5) program continues to die with SIGKILL, while the copy from step (7) runs<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">WTF?!<br>
<br>
G<br>
<br>
<o:p></o:p></span></p>
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