mhorne added a comment.

The FreeBSD API usage looks correct to me, but I can't comment on too much more 
than that. The code could benefit from fewer unnamed constants.

I should also note that it is my intention to merge the FreeBSD watchpoint 
patches into the 13.0 branch, in about a week's time. So your 
`__FreeBSD_version` checks will need to be updated after that point.



================
Comment at: 
lldb/source/Plugins/Process/Utility/NativeRegisterContextBreakWatchpoint_arm64.cpp:57
+  control_value |= ((1 << size) - 1) << 5;
+  control_value |= (2 << 1) | 1;
+
----------------
These magic numbers would be better with names. I see quite a few instances of 
checking/setting the enable bit, but it is not obvious what is being done 
unless you already understand the control register layout.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D96548/new/

https://reviews.llvm.org/D96548

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