do not undefine _hardened_build (#2044917)

update annobin plugin patch (#2030667)

update annobin plugin patch (#2030667)

update annobin plugin patch (#2030667)

fix dg-ice tests (#1996047)

update annobin plugin patch (#2030667)

build annobin plugin (patch by Nick Clifton) (#2030667)

update from releases/gcc-11-branch (#1996858)
PRs ada/100486, c++/70796, c++/92746, c++/93286, c++/94490, c++/102642,
profile/100520, ipa/102714,
end/64888,
end/101480, middle-end/102431, middle-end/102518,
end/103059, middle-end/103181, middle-end/103248,
end/103384, preprocessor/103130, rtl-optimization/102356,
optimization/102842, target/101985, target/102976, target/102991,
optimization/100393, tree-optimization/102139,
optimization/102505, tree-optimization/102572,
optimization/102788, tree-optimization/102789,
optimization/102798, tree-optimization/102970,
optimization/103192, tree-optimization/103204,
optimization/103237, tree-optimization/103255,
optimization/103435
fix up #__VA_OPT__ handling (PR preprocessor/103415)

add -Wbidi-chars patch (#2008393)

update from releases/gcc-11-branch (#1996858)
build target shared libraries with -Wl,-z,relro,-z,now
add mwaitintrin.h on x86 (#2013860)
improve generated code with extern thread_local constinit vars
add support for C++20 #__VA_OPT__
add bundled(libbacktrace) and bundled(libffi) provides (#1993932)

bootstrap with -Wl,-z,relro,-z,now, apply libgcc hardening patch (#1988450)
fix libsanitizer with non-constant SIGSTKSZ (#1992727)

enable LTO profiledbootstrap on all arches (#1986141)

Rebuild with changed aarch64 build flags (#1984652)

update from releases/gcc-11-branch (#1986836)
GCC 11.2 release
PRs middle-end/101586, rtl-optimization/101562
enable LTO profiledbootstrap on x86_64, i?86, ppc64le and s390x for rhel9

drop patch that retained broken std::call_once symbols

update from releases/gcc-11-branch
PRs c++/100876, c++/100879, c++/101106, c/100619, c/100783, fortran/95501,
asm/100785,
end/100250, middle-end/100307, middle-end/100574,
end/100684, middle-end/100732, middle-end/100876,
end/101062, middle-end/101167, target/99842, target/99939,