[Lldb-commits] [PATCH] D96548: [lldb] [Process/FreeBSDRemote] Introduce aarch64 hw break/watchpoint support

Michał Górny via Phabricator via lldb-commits lldb-commits at lists.llvm.org
Thu Feb 18 16:49:55 PST 2021

mgorny added a comment.

In D96548#2572770 <https://reviews.llvm.org/D96548#2572770>, @omjavaid wrote:

> I am wondering Whats the need for version checks? you are excluding hardware breakpoint mangement code from the build but then that lldb-server executable may well run on FreeBSD version which actually supports HW breakpoints. Isnt there a dynamic way of checking support for hardware break/watch points. May be query hardware debug registers and if it fails just disable hardware breakpoints for that thread.

The code relies on `struct` members that are only present with this version. I'd like to avoid copying implementation details like that into the code.

> Moreover, can we shrink class name NativeRegisterContextBreakWatchpoint_arm64 to may be NativeDebugRegisterContext_arm64.

I generally leave naming decisions to @labath ;-).



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