unwind: use a more portable endianness check in EHABI
The ARM specific code was trying to determine endianness using the
`__LITTLE_ENDIAN__` macro which is not guaranteed to be defined.
When not defined, it makes libunwind to build the big-endian code even
when the compiler builds for a little-endian target.
This change allows building libunwind with the `musl-gcc` toolchain
which does not define `__LITTLE_ENDIAN__`. Use `__BYTE_ORDER__`
instead.
Patch by Idan Freiberg!
GitOrigin-RevId: 68c50708d1f2b9aee3f10ec710df0b1387f701e5
1 file changed
