fix handling of invalid ranges in std::regex (#2106262)

update from releases/gcc-11-branch (#2077536)
GCC 11.3 release
PRs c++/98249, c++/99893, c++/100608, c++/101051, c++/101532, c++/101677,
profile/105282, ipa/103083,
end/104497, middle-end/105165,
optimization/104985, rtl-optimization/105028,
optimization/105211, target/80556, target/100106, target/104117,
optimization/99121, tree-optimization/104880,
optimization/105053, tree-optimization/105070,
optimization/105189, tree-optimization/105198,
optimization/105226, tree-optimization/105232,
optimization/105235
fix bogus -Wuninitialized warning on va_arg with complex types on x86_64
remove bogus assertion in std::from_chars (PR libstdc++/105324)

update from releases/gcc-11-branch (#2063255)
PRs ada/98724, ada/104258, ada/104767, ada/104861, c++/58646, c++/59950,
end/95115, middle-end/99578, middle-end/100464,
end/100680, middle-end/100775, middle-end/100786,
end/104307, middle-end/104402, middle-end/104446,
end/104786, middle-end/104971, middle-end/105032,
optimization/104544, rtl-optimization/104589,
optimization/104777, rtl-optimization/104814, sanitizer/102656,
optimization/45178, tree-optimization/100834,
optimization/101636, tree-optimization/102819,
optimization/102893, tree-optimization/103169,
optimization/103361, tree-optimization/103489,
optimization/103544, tree-optimization/103596,
optimization/103641, tree-optimization/103864,
optimization/104263, tree-optimization/104288,
optimization/104511, tree-optimization/104601,
optimization/104675, tree-optimization/104782,
optimization/104931, tree-optimization/105094
fix x86 vector initialization expansion fallback (PR target/105123)
drop patch 22 (gcc11-libsanitizer-pthread.patch;
9607-ga8dd74bfb921ed)

add --enable-host-bind-now, use it (#2044917)

use _thread_db_sizeof_pthread to obtain struct pthread size (#2034494)
add --enable-host-pie, build the compilers as PIE (#2044917)

add support for relocation of the PCH data (pch/71934, #2044917)
remove 30_threads/future/members/poll.cc (#2050090)
avoid overly-greedy match in dejagnu regexp (#2050089)

don't set -Wl,-rpath when building annobin (#2047356)

update from releases/gcc-11-branch (#2047296)
PRs fortran/104127, fortran/104212, fortran/104227, target/101529
fix up va-opt-6.c testcase

update from releases/gcc-11-branch (#2047296)
PRs ada/103538, analyzer/101962, bootstrap/103688, c++/85846, c++/95009,
end/101751, middle-end/102860, middle-end/103813, objc/103639,
optimization/102478,
optimization/103837, rtl-optimization/103860,
optimization/103908, sanitizer/102911, target/102347,
optimization/101615, tree-optimization/103523,
optimization/103603, tree-optimization/103995

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)