[Bug 233405] sparc64: DWARF unwinder required for GCC 4.2.1 retirement

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=233405

--- Comment #11 from Conrad Meyer <cem at freebsd.org> ---
(In reply to Ed Maste from comment #10)
For us, they’re both defined, and we only support sparc64.  The un-numbered
variant was already used in that file, so I just followed existing convention.

The upstream numbers (cursor words) are probably intended for 32bit Sparc.  So
this isn’t literally the patch to upstream, if you cared to, but retaining
32bit Sparc isn’t too difficult.

It’s odd- the clang/llvm sparc support is heavily v8 (pre-64bit) focused, but
the (rough, minimal) LLD support is V9 *only*. Different contributors,
patchwork support...

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