tree 38f595eb9ddf64310fd7a8ae26225c63b400cde5
parent 251b2d5c65b72022570ab3034fa082d3af53c059
author Ryan Prichard <rprichard@google.com> 1599173985 -0700
committer Copybara-Service <copybara-worker@google.com> 1604019921 -0700

[libunwind] Minor SJLJ config cleanup. NFCI.

Simplify:

    defined(__ARM_DWARF_EH__) || !defined(__arm__)

to:

    !defined(_LIBUNWIND_ARM_EHABI)

A later patch benefits from the simplicity. This change will result in
the two DWARF macros being defined when __USING_SJLJ_EXCEPTIONS__ is
defined, but:

 * That's already the case with the __APPLE__ and _WIN32 clauses.
 * That's also already the case with other architectures.
 * With __USING_SJLJ_EXCEPTIONS__, most of the unwinder is #ifdef'ed
   away.

Generally, when __USING_SJLJ_EXCEPTIONS__ is defined, most of the
libunwind code is removed by the preprocessor. e.g. None of the hpp
files are included, and almost all of the .c and .cpp files are defined
away, except in Unwind-sjlj.c. Unwind_AppleExtras.cpp is an exception
because it includes two hpp files, which it doesn't use. Remove the
unneeded includes for consistency with the general rule.

Reviewed By: steven_wu

Differential Revision: https://reviews.llvm.org/D86767

GitOrigin-RevId: 673484b34189b1bccf73a2ec96968092bc8a26a7