Patch ping

[Jakub Jelinek]

Hi!

I'd like to ping a few patches:

https://gcc.gnu.org/pipermail/gcc-patches/2020-August/552451.html
  - allow plugins to deal with global_options layout changes

https://gcc.gnu.org/pipermail/gcc-patches/2020-September/553420.html
  - --enable-link-serialization{,=N} support

https://gcc.gnu.org/pipermail/gcc-patches/2020-September/553948.html
  - PR96994 - fix up C++ handling of default initialization with
	      consteval default ctor

https://gcc.gnu.org/pipermail/gcc-patches/2020-September/553992.html
  - pass -gdwarf-5 to assembler for -gdwarf-5 if possible

https://gcc.gnu.org/pipermail/gcc-patches/2020-September/554246.html
  - PR97073 - fix wrong-code on double-word op expansion

	Jakub