[libcxx-commits] [PATCH] D59694: [PPC64][libunwind] Fix r2 not properly restored
Mark Millard via Phabricator via libcxx-commits
libcxx-commits at lists.llvm.org
Sat Mar 30 12:32:54 PDT 2019
markmi added a comment.
I wrote elsewhere:
> I'd not looked at kernel code in a long time but had a reason to
> do so yesterday. The kernel is using the ELFv2 ABI in my
> non-gcc-4.2.1 builds.
Also: buildworld is using the ELFv1 ABI in my builds.
(Both contexts are using defaults.)
This leaves me wondering if, for example, a kernel debugger
would track the kernel ABI when it is distinct from the world
ABI, given libunwind having a compile-time choice of which
ELFv? ABI to handle for r2 (TOC) use.
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