gcc/libstdc++-v3/config/abi/pre/gnu.ver

## Linker script for GNU versioning (GNU ld 2.13.91+ only.)
##
## Copyright (C) 2002-2020 Free Software Foundation, Inc.
##
## This file is part of the GNU ISO C++ Library.  This library is free
## software; you can redistribute it and/or modify it under the
## terms of the GNU General Public License as published by the
## Free Software Foundation; either version 3, or (at your option)
## any later version.
##
## This library is distributed in the hope that it will be useful,
## but WITHOUT ANY WARRANTY; without even the implied warranty of
## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
## GNU General Public License for more details.
##
## You should have received a copy of the GNU General Public License along
## with this library; see the file COPYING3.  If not see
## <http://www.gnu.org/licenses/>.

GLIBCXX_3.4 {

  global:

    # Names inside the 'extern' block are demangled names.
    extern "C++"
    {
      std::[ABD-Z]*;
      std::a[a-c]*;
      std::ad[a-n]*;
      std::ad[p-z]*;
      std::a[e-z]*;
#     std::ba[a-r]*;
      std::basic_[a-e]*;
      std::basic_f[a-h]*;
#     std::basic_filebuf;
      std::basic_f[j-r]*;
#     std::basic_fstream;
      std::basic_f[t-z]*;
      std::basic_[g-h]*;
      std::basic_i[a-e]*;
#     std::basic_ifstream;
#     std::basic_ios;
#     std::basic_iostream;
      std::basic_istr[a-d]*;
#     std::basic_istream;
#     std::basic_istringstream;
      std::basic_i[t-z]*;
      std::basic_[j-n]*;
      std::basic_o[a-e]*;
#     std::basic_ofstream;
#     std::basic_o[g-z]*;
      std::basic_o[g-r]*;
      std::basic_ostr[a-d]*;
#     std::basic_ostringstream;
      std::basic_[p-r]*;
#     std::basic_streambuf
#     std::basic_string
#     std::basic_stringbuf
#     std::basic_stringstream;
      std::basic_[t-z]*;
      std::ba[t-z]*;
      std::b[b-z]*;
      std::cerr;
#     std::char_traits;
#     std::c[i-z]*;
      std::c[i-n]*;
#     std::codecvt;
#     std::codecvt_byname;
#     std::collate;
#     std::collate_byname;
#     std::condition_variable;
      std::co[^dln]*;
      std::c[p-s]*;
      std::cu[^r]*;
#     std::current_exception
      std::c[v-z]*;
#     std::[d-g]*;
      std::d[a-d]*;
      std::d[f-n]*;
#     std::domain_error::d*;
#     std::domain_error::~d*;
      std::d[p-z]*;
      std::error[^_]*;
      std::exception::*;
      std::gslice*;
      std::h[^a]*;
      std::i[a-m]*;
#     std::invalid_argument::i*;
#     std::invalid_argument::~i*;
#     std::ios_base::[A-Ha-z]*;
      std::ios_base::[A-Ha-e]*;
      std::ios_base::failbit;
#     std::ios_base::failure*;
      std::ios_base::fixed;
      std::ios_base::floatfield;
      std::ios_base::goodbit;
      std::ios_base::[h-z]*;
      std::ios_base::_M_grow_words*;
      std::ios_base::_M_init*;
      std::ios_base::Init::[A-Za-z]*;
#     std::ios_base::[J-Za-z]*;
      std::i[p-r]*;
#     std::istream
#     std::istreambuf_iterator
#     std::istringstream*;
      std::istrstream*;
      std::i[t-z]*;
      std::[j-k]*;
#     std::length_error::l*;
#     std::length_error::~l*;
      std::locale::[A-Za-e]*;
      std::locale::facet::[A-Za-z]*;
      std::locale::facet::_S_get_c_locale*;
      std::locale::facet::_S_clone_c_locale*;
      std::locale::facet::_S_create_c_locale*;
      std::locale::facet::_S_destroy_c_locale*;
      std::locale::[A-Zg-h]*;
      std::locale::id::[A-Za-z]*;
      std::locale::id::_M_id*;
      std::locale::[A-Zj-m]*;
#     std::locale::name();
      std::locale::none*;
      std::locale::numeric*;
      std::locale::[A-Zo-z]*;
      std::locale::_[A-Ha-z]*;
      std::locale::_Impl::[A-Za-z]*;
#     std::locale::_Impl::_M_[A-Za-z]*;
      std::locale::_[J-Ra-z]*;
      std::locale::_S_normalize_category*;
      std::locale::_[T-Za-z]*;
#     std::logic_error::l*;
      std::logic_error::what*;
#     std::logic_error::~l*;
#     std::[m-r]*;
#     std::[m]*;
      std::messages[^_]*;
#     std::messages_byname*;
      std::money_*;
      std::moneypunct[^_]*;
#     std::moneypunct_byname*;
#     std::n[^u]*;
      std::n[^aueo]*;
      std::nothrow;
      std::nu[^m]*;
      std::num[^ep]*;
      std::numpunct[^_]*;
#     std::numpunct_byname*;
      std::ostrstream*;
#     std::out_of_range::o*;
#     std::out_of_range::~o*;
#     std::overflow_error::o*;
#     std::overflow_error::~o*;
#     std::[p-q]*;
      std::r[^aeu]*;
#     std::range_error::r*;
#     std::range_error::~r*;
#     std::re[^t]*;
#     std::rethrow_exception
#     std::runtime_error::r*
      std::runtime_error::what*;
#     std::runtime_error::~r*;
      std::set_new_handler*;
      std::set_terminate*;
      std::set_unexpected*;
#     std::string
      std::strstream*;
      std::strstreambuf*;
#     std::t[a-q]*;
      std::t[a-g]*;
      std::th[a-h]*;
      std::th[j-q]*;
      std::th[s-z]*;
#     std::t[i-n]*;
      std::tr1::h[^a]*;
      std::t[s-z]*;
#     std::[u-z]*;
#     std::underflow_error::u*;
#     std::underflow_error::~u*;
      std::unexpected*;
      std::valarray*;
      # std::vector*
      std::[w-z]*;
      std::_List_node_base::hook*;
      std::_List_node_base::swap*;
      std::_List_node_base::unhook*;
      std::_List_node_base::reverse*;
      std::_List_node_base::transfer*;
      std::__timepunct*;
#     std::__numeric_limits_base*;
      std::__num_base::_S_format_float*;
      std::__num_base::_S_format_int*;
      std::__num_base::_S_atoms_in;
      std::__num_base::_S_atoms_out;
      std::__moneypunct_cache*;
      std::__numpunct_cache*;
      std::__timepunct_cache*;
#     __gnu_debug::_Error_formatter*
    };

    # Names not in an 'extern' block are mangled names.  Character classes
    # are used in many of the regex patterns to compensate for minor differences
    # among the standard integer types and sizes on different platforms and
    # under different modes of 64-bit architecture (ILP64, LLP64, etc.)

    # std::string
    # 'y' here and below represents 'unsigned long long'
    # where it is used for size_type on LLP64 platforms.
    _ZNSsC[12]EPKc*;
    _ZNSsC[12]ERKSaIcE;
    _ZNSsC[12]ERKSs;
#   _ZNSsC[12]ERKSs[jmy]RKSaIcE;
    _ZNSsC[12]ERKSs[jmy][jmy]*;
    _ZNSsC[12]E[jmy]cRKSaIcE;
    _ZNSsC[12]Ev;
    _ZNSsC[12]I[PN]*;
    _ZNSsD*;
    _ZNSs[0-58-9]a*;
    _ZNSs5beginEv;
    _ZNSs[0-358-9][c-e]*;
    _ZNSs[0-59][g-z]*;
#   _ZNSs[67][a-z]*E[PRcjmvy]*;
    _ZNSs6appendE[PRcjmvy]*;
    _ZNSs6assignE[PRcjmvy]*;
    _ZNSs6insertE[PRcjmvy]*;
    _ZNSs6insertEN9__gnu_cxx17__normal_iteratorIPcSsEE[PRcjmvy]*;
    _ZNSs[67][j-z]*E[PRcjmvy]*;
    _ZNSs7[a-z]*EES2_[NPRjmy]*;
    _ZNSs7[a-z]*EES2_S[12]*;
    _ZNSs12_Alloc_hiderC*;
    _ZNSs12_M_leak_hardEv;
    _ZNSs12_S_constructE[jmy]cRKSaIcE;
    _ZNSs12_S_empty_repEv;
    _ZNSs13_S_copy_chars*;
    _ZNSs[0-9][0-9]_M_replace*;
    _ZNSs4_Rep10_M_destroy*;
    _ZNSs4_Rep10_M_dispose*;
    _ZNSs4_Rep10_M_refcopyEv;
    _ZNSs4_Rep10_M_refdataEv;
    _ZNSs4_Rep12_S_empty_repEv;
    _ZNSs4_Rep13_M_set_leakedEv;
    _ZNSs4_Rep15_M_set_sharableEv;
    _ZNSs4_Rep7_M_grab*;
    _ZNSs4_Rep8_M_clone*;
    _ZNSs4_Rep9_S_createE[jmy][jmy]*;
    _ZNSs7_M_dataEPc;
    _ZNSs7_M_leakEv;
    _ZNSs9_M_mutateE[jmy][jmy][jmy];
    _ZNSs4_Rep20_S_empty_rep_storageE;
    _ZNSs4_Rep11_S_max_sizeE;
    _ZNSs4_Rep11_S_terminalE;
    _ZNSsaSE[PRc]*;
    _ZNSsixE*;
    _ZNSspLE[PRc]*;
    _ZNKSs[0-3][a-b]*;
    _ZNKSs[5-9][a-b]*;
    _ZNKSs[0-9][d-e]*;
    _ZNKSs[0-9][g-z]*;
    _ZNKSs[0-9][0-9][a-z]*;
    _ZNKSs4find*;
    _ZNKSs[abd-z]*;
    _ZNKSs4_Rep12_M_is_leakedEv;
    _ZNKSs4_Rep12_M_is_sharedEv;
    _ZNKSs6_M_repEv;
    _ZNKSs7_M_dataEv;
    _ZNKSs7_M_iendEv;
    _ZNKSs8_M_check*;
    _ZNKSs8_M_limit*;
    _ZNKSs9_M_ibeginEv;
    _ZStplIcSt11char_traitsIcESaIcEESbIT_T0_T1_E*;
    _ZNKSs7compare*;
    _ZNKSs5c_strEv;
    _ZNKSs8capacityEv;
    _ZNKSs4copyEPc[jmy][jmy];

    # std::wstring
    _ZNSbIwSt11char_traitsIwESaIwEEC[12]EPKw*;
    _ZNSbIwSt11char_traitsIwESaIwEEC[12]ERKS[12]_;
#   _ZNSbIwSt11char_traitsIwESaIwEEC[12]ERKS2_mRKS1_;
    _ZNSbIwSt11char_traitsIwESaIwEEC[12]ERKS2_[jmy][jmy]*;
    _ZNSbIwSt11char_traitsIwESaIwEEC[12]E[jmy]wRKS1_;
    _ZNSbIwSt11char_traitsIwESaIwEEC[12]Ev;
    _ZNSbIwSt11char_traitsIwESaIwEEC[12]I[PN]*;
    _ZNSbIwSt11char_traitsIwESaIwEED*;
    _ZNSbIwSt11char_traitsIwESaIwEE[0-58-9]a*;
    _ZNSbIwSt11char_traitsIwESaIwEE5beginEv;
    _ZNSbIwSt11char_traitsIwESaIwEE[0-358-9][c-e]*;
    _ZNSbIwSt11char_traitsIwESaIwEE[0-59][g-z]*;
#   _ZNSbIwSt11char_traitsIwESaIwEE[67][a-b]*E[PRwjmvy]*;
    _ZNSbIwSt11char_traitsIwESaIwEE6appendE[PRwjmvy]*;
    _ZNSbIwSt11char_traitsIwESaIwEE6assignE[PRwjmvy]*;
    _ZNSbIwSt11char_traitsIwESaIwEE6insertE[PRwjmvy]*;
    _ZNSbIwSt11char_traitsIwESaIwEE6insertEN9__gnu_cxx17__normal_iteratorIPwS2_EE[PRwjmvy]*;
    _ZNSbIwSt11char_traitsIwESaIwEE[67][j-z]*E[PRwjmvy]*;
    _ZNSbIwSt11char_traitsIwESaIwEE7[a-z]*EES6_[NPRjmy]*;
    _ZNSbIwSt11char_traitsIwESaIwEE7[a-z]*EES6_S[56]*;
    _ZNSbIwSt11char_traitsIwESaIwEE12_Alloc_hiderC*;
    _ZNSbIwSt11char_traitsIwESaIwEE12_M_leak_hardEv;
    _ZNSbIwSt11char_traitsIwESaIwEE12_S_constructE[jmy]wRKS1_;
    _ZNSbIwSt11char_traitsIwESaIwEE12_S_empty_repEv;
    _ZNSbIwSt11char_traitsIwESaIwEE13_S_copy_chars*;
    _ZNSbIwSt11char_traitsIwESaIwEE14_M_replace_aux*;
    _ZNSbIwSt11char_traitsIwESaIwEE15_M_replace_safe*;
    _ZNSbIwSt11char_traitsIwESaIwEE4_Rep10_M_destroy*;
    _ZNSbIwSt11char_traitsIwESaIwEE4_Rep10_M_dispose*;
    _ZNSbIwSt11char_traitsIwESaIwEE4_Rep10_M_refcopyEv;
    _ZNSbIwSt11char_traitsIwESaIwEE4_Rep10_M_refdataEv;
    _ZNSbIwSt11char_traitsIwESaIwEE4_Rep12_S_empty_repEv;
    _ZNSbIwSt11char_traitsIwESaIwEE4_Rep13_M_set_leakedEv;
    _ZNSbIwSt11char_traitsIwESaIwEE4_Rep15_M_set_sharableEv;
    _ZNSbIwSt11char_traitsIwESaIwEE4_Rep7_M_grab*;
    _ZNSbIwSt11char_traitsIwESaIwEE4_Rep8_M_clone*;
    _ZNSbIwSt11char_traitsIwESaIwEE4_Rep9_S_createE[jmy][jmy]*;
    _ZNSbIwSt11char_traitsIwESaIwEE7_M_dataEPw;
    _ZNSbIwSt11char_traitsIwESaIwEE7_M_leakEv;
    _ZNSbIwSt11char_traitsIwESaIwEE9_M_mutateE[jmy][jmy][jmy];
    _ZNSbIwSt11char_traitsIwESaIwEE4_Rep20_S_empty_rep_storageE;
    _ZNSbIwSt11char_traitsIwESaIwEE4_Rep11_S_max_sizeE;
    _ZNSbIwSt11char_traitsIwESaIwEE4_Rep11_S_terminalE;
    _ZNSbIwSt11char_traitsIwESaIwEEaSE[PRw]*;
    _ZNSbIwSt11char_traitsIwESaIwEEixE*;
    _ZNSbIwSt11char_traitsIwESaIwEEpLE[PRw]*;
    _ZNKSbIwSt11char_traitsIwESaIwEE[0-3][a-b]*;
    _ZNKSbIwSt11char_traitsIwESaIwEE[5-9][a-b]*;
    _ZNKSbIwSt11char_traitsIwESaIwEE[0-9][d-e]*;
    _ZNKSbIwSt11char_traitsIwESaIwEE[0-9][g-z]*;
    _ZNKSbIwSt11char_traitsIwESaIwEE[0-9][0-9][a-z]*;
    _ZNKSbIwSt11char_traitsIwESaIwEE[abd-z]*;
    _ZNKSbIwSt11char_traitsIwESaIwEE4find*;
    _ZNKSbIwSt11char_traitsIwESaIwEE4_Rep12_M_is_leakedEv;
    _ZNKSbIwSt11char_traitsIwESaIwEE4_Rep12_M_is_sharedEv;
    _ZNKSbIwSt11char_traitsIwESaIwEE6_M_repEv;
    _ZNKSbIwSt11char_traitsIwESaIwEE7_M_dataEv;
    _ZNKSbIwSt11char_traitsIwESaIwEE7_M_iendEv;
    _ZNKSbIwSt11char_traitsIwESaIwEE8_M_check*;
    _ZNKSbIwSt11char_traitsIwESaIwEE8_M_limit*;
    _ZNKSbIwSt11char_traitsIwESaIwEE9_M_ibeginEv;
    _ZStplIwSt11char_traitsIwESaIwEESbIT_T0_T1_E*;
    _ZNKSbIwSt11char_traitsIwESaIwEE7compare*;
    _ZNKSbIwSt11char_traitsIwESaIwEE5c_strEv;
    _ZNKSbIwSt11char_traitsIwESaIwEE8capacityEv;
    _ZNKSbIwSt11char_traitsIwESaIwEE4copyEPw[jmy][jmy];

    # std::basic_streambuf
    _ZNSt15basic_streambufI[cw]St11char_traitsI[cw]EE[CD]*;
    _ZNKSt15basic_streambufI[cw]St11char_traitsI[cw]EE[0-9]*;
    _ZNSt15basic_streambufI[cw]St11char_traitsI[cw]EE4set[gp]*;
    _ZNSt15basic_streambufI[cw]St11char_traitsI[cw]EE4sync*;
    _ZNSt15basic_streambufI[cw]St11char_traitsI[cw]EE[5-9][a-z][^t]*;
    _ZNSt15basic_streambufI[cw]St11char_traitsI[cw]EE[0-9][0-9][a-z][^t]*;
    _ZNSt15basic_streambufI[cw]St11char_traitsI[cw]EEaSERKS2_;

    # std::basic_stringbuf
    _ZNSt15basic_stringbufI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]E[RS]*;
    _ZNSt15basic_stringbufI[cw]St11char_traitsI[cw]ESaI[cw]EED[^2]*;
    _ZNSt15basic_stringbufI[cw]St11char_traitsI[cw]ESaI[cw]EE[0-9][a-r]*;
    _ZNSt15basic_stringbufI[cw]St11char_traitsI[cw]ESaI[cw]EE[0-9]seek*;
    _ZNSt15basic_stringbufI[cw]St11char_traitsI[cw]ESaI[cw]EE[0-9]set*;
    _ZNKSt15basic_stringbufIcSt11char_traitsIcESaIcEE3strEv;
    _ZNKSt15basic_stringbufIwSt11char_traitsIwESaIwEE3strEv;
    _ZNSt15basic_stringbufIcSt11char_traitsIcESaIcEE3strERKSs;
    _ZNSt15basic_stringbufIwSt11char_traitsIwESaIwEE3strERKSbIwS1_S2_E;
    _ZNSt15basic_stringbufI[cw]St11char_traitsI[cw]ESaI[cw]EE[0-9][t-z]*;
    _ZNSt15basic_stringbufI[cw]St11char_traitsI[cw]ESaI[cw]EE[0-9]_M_[a-o]*;
    _ZNSt15basic_stringbufI[cw]St11char_traitsI[cw]ESaI[cw]EE[0-9]_M_[q-z]*;
    _ZNSt15basic_stringbufI[cw]St11char_traitsI[cw]ESaI[cw]EE[0-9][0-9]_M_[a-z]*;

    # std::basic_istringstream
    _ZNSt19basic_istringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]E[RS]*;
    _ZNSt19basic_istringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EED*;
    _ZNSt19basic_istringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EE3str*;
    _ZNKSt19basic_istringstreamI*;

    # std::basic_ostringstream
    _ZNSt19basic_ostringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]E[RS]*;
    _ZNSt19basic_ostringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EED*;
    _ZNSt19basic_ostringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EE3str*;
    _ZNKSt19basic_ostringstreamI*;

    # std::basic_stringstream
    _ZNSt18basic_stringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]E[RS]*;
    _ZNSt18basic_stringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EED*;
    _ZNSt18basic_stringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EE3str*;
    _ZNKSt18basic_stringstreamI*;

    # std::basic_iostream constructors (except move), destructors
    _ZNSdC[12]Ev;
    _ZNSdC[12]EP*;
    _ZNSdD*;
    _ZNSt14basic_iostreamIwSt11char_traitsIwEEC[12]Ev;
    _ZNSt14basic_iostreamIwSt11char_traitsIwEEC[12]EP*;
    _ZNSt14basic_iostreamIwSt11char_traitsIwEED*;

    # std::basic_ios constructors, destructors
    _ZNSt9basic_iosI[cw]St11char_traitsI[cw]EEC*;
    _ZNSt9basic_iosI[cw]St11char_traitsI[cw]EED*;

    # std::basic_ios members (except move, swap, set_rdbuf)
    _ZNKSt9basic_iosI[cw]St11char_traitsI[cw]EEcvPvEv;
    _ZNKSt9basic_iosI[cw]St11char_traitsI[cw]EEntEv*;
    _ZNKSt9basic_iosI[cw]St11char_traitsI[cw]EE[0-9]*;
    _ZNSt9basic_iosI[cw]St11char_traitsI[cw]EE1[015]*;
    _ZNSt9basic_iosI[cw]St11char_traitsI[cw]EE3tie*;
    _ZNSt9basic_iosI[cw]St11char_traitsI[cw]EE4fill*;
    _ZNSt9basic_iosI[cw]St11char_traitsI[cw]EE4init*;
    _ZNSt9basic_iosI[cw]St11char_traitsI[cw]EE[578][a-z]*;

    # std::basic_filebuf
    _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EEC[12]Ev;
    _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EED*;
    _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EE0*;
    _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EE13*;
    _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EE15*;
    _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EE16*;
    _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EE19*;
    _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EE2*;
    _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EE3*;
    _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EE4openEPKc*;
    _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EE4sync*;
    _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EE[5-9]*;
    _ZNKSt13basic_filebufI[cw]St11char_traitsI[cw]EE7is_openEv;

    # std::basic_fstream
    _ZNSt13basic_fstreamI[cw]St11char_traitsI[cw]EEC[12]Ev;
    _ZNSt13basic_fstreamI[cw]St11char_traitsI[cw]EEC[12]EPKc*;
    _ZNSt13basic_fstreamI[cw]St11char_traitsI[cw]EED*;
    _ZNSt13basic_fstreamI[cw]St11char_traitsI[cw]EE5closeEv;
    _ZNSt13basic_fstreamI[cw]St11char_traitsI[cw]EE7is_openEv;
    _ZNSt13basic_fstreamI[cw]St11char_traitsI[cw]EE4openEPKc*;
    _ZNKSt13basic_fstreamI[cw]St11char_traitsI[cw]EE5rdbufEv;

    # std::basic_ifstream
    _ZNSt14basic_ifstreamI[cw]St11char_traitsI[cw]EEC[12]Ev;
    _ZNSt14basic_ifstreamI[cw]St11char_traitsI[cw]EEC[12]EPKc*;
    _ZNSt14basic_ifstreamI[cw]St11char_traitsI[cw]EED*;
    _ZNSt14basic_ifstreamI[cw]St11char_traitsI[cw]EE5closeEv;
    _ZNSt14basic_ifstreamI[cw]St11char_traitsI[cw]EE7is_openEv;
    _ZNSt14basic_ifstreamI[cw]St11char_traitsI[cw]EE4openEPKc*;
    _ZNKSt14basic_ifstreamI[cw]St11char_traitsI[cw]EE5rdbufEv;

    # std::basic_ofstream
    _ZNSt14basic_ofstreamI[cw]St11char_traitsI[cw]EEC[12]Ev;
    _ZNSt14basic_ofstreamI[cw]St11char_traitsI[cw]EEC[12]EPKc*;
    _ZNSt14basic_ofstreamI[cw]St11char_traitsI[cw]EED*;
    _ZNSt14basic_ofstreamI[cw]St11char_traitsI[cw]EE5closeEv;
    _ZNSt14basic_ofstreamI[cw]St11char_traitsI[cw]EE7is_openEv;
    _ZNSt14basic_ofstreamI[cw]St11char_traitsI[cw]EE4openEPKc*;
    _ZNKSt14basic_ofstreamI[cw]St11char_traitsI[cw]EE5rdbufEv;

    # std::basic_istream<char>
    _ZNSiC[12]Ev;
    _ZNSiC[12]EP*;
    _ZNSiD*;
    _ZNKSi6sentry*;
    _ZNKSi6gcount*;
    _ZNSi3get*;
    _ZNSi4peek*;
    _ZNSi4read*;
    _ZNSi4sync*;
    _ZNSi7getline*;
    _ZNSi[5-9][j-z]*;
    # 'x' here and below matches 'long long' where it
    # is used for signed sizetypes on LLP64 platforms.
    _ZNSi6ignoreE[ilx][ilx];
    _ZNSirsE*[^g];

    # std::basic_istream<wchar_t>
    _ZNSt13basic_istreamIwSt11char_traitsIwEEC[12]Ev;
    _ZNSt13basic_istreamIwSt11char_traitsIwEEC[12]EP*;
    _ZNSt13basic_istreamIwSt11char_traitsIwEED*;
    _ZNKSt13basic_istreamIwSt11char_traitsIwEE[0-9][a-z]*;
    _ZNSt13basic_istreamIwSt11char_traitsIwEE3get*;
    _ZNSt13basic_istreamIwSt11char_traitsIwEE4peek*;
    _ZNSt13basic_istreamIwSt11char_traitsIwEE4read*;
    _ZNSt13basic_istreamIwSt11char_traitsIwEE4sync*;
    _ZNSt13basic_istreamIwSt11char_traitsIwEE[5-9][j-z]*;
    _ZNSt13basic_istreamIwSt11char_traitsIwEE6ignoreE[ilx][ijlmx];
    _ZNSt13basic_istreamIwSt11char_traitsIwEE7getline*;
    _ZNSt13basic_istreamIwSt11char_traitsIwEErsE*[^g];

    # std::istream operators and extractors
    _ZSt7getlineI[cw]St11char_traitsI[cw]ESaI[cw]EERSt13basic_istreamIT_T0_ES7_RSbI*;
    _ZSt2wsI[cw]St11char_traitsI[cw]EE*;
    _ZStrsI[cw]St11char_traitsI[cw]EERSt13basic_istream*;
    _ZStrsI[cw]St11char_traitsI[cw]ESaI[cw]EERSt13basic_istreamIT_T0_ES7_RSbI*;
    _ZStrsISt11char_traitsI[cw]EERSt13basic_istream*;
    _ZStrsId[cw]St11char_traitsI[cw]EERSt13basic_istream*;
    _ZStrsIe[cw]St11char_traitsI[cw]EERSt13basic_istream*;
    _ZStrsIf[cw]St11char_traitsI[cw]EERSt13basic_istream*;

    # std::basic_ostream<char>
    _ZNSoC[12]Ev;
    _ZNSoC[12]EP*;
    _ZNSoD*;
    _ZNKSo6sentrycvbEv;
    _ZNSo8_M_writeEPKc[ilx];
    _ZNSo3put*;
    _ZNSo[5-9][a-z]*;
    _ZNSolsE[^g];
    _ZNSolsEP*;

    # std::basic_ostream<wchar_t>
    _ZNSt13basic_ostreamIwSt11char_traitsIwEEC[12]Ev;
    _ZNSt13basic_ostreamIwSt11char_traitsIwEEC[12]EP*;
    _ZNSt13basic_ostreamIwSt11char_traitsIwEED*;
    _ZNKSt13basic_ostreamIwSt11char_traitsIwEE[0-9][a-z]*;
    _ZNSt13basic_ostreamIwSt11char_traitsIwEE3putEw;
    _ZNSt13basic_ostreamIwSt11char_traitsIwEE5flushEv;
    _ZNSt13basic_ostreamIwSt11char_traitsIwEE5seekpE*;
    _ZNSt13basic_ostreamIwSt11char_traitsIwEE5tellpEv;
    _ZNSt13basic_ostreamIwSt11char_traitsIwEE5writeEPKw*;
    _ZNSt13basic_ostreamIwSt11char_traitsIwEE6sentry*;
    _ZNSt13basic_ostreamIwSt11char_traitsIwEE8_M_writeEPKw[ilx];
    _ZNSt13basic_ostreamIwSt11char_traitsIwEElsE[^g];
    _ZNSt13basic_ostreamIwSt11char_traitsIwEElsEP*;

    # std::ostream operators and inserters
    _ZSt4end[ls]I[cw]St11char_traitsI[cw]EERSt13basic_ostream*;
    _ZSt5flushI[cw]St11char_traitsI[cw]EERSt13basic_ostream*;
    _ZStlsI[cw]St11char_traitsI[cw]EERSt13basic_ostream*;
    _ZStlsI[cw]St11char_traitsI[cw]ESaI[cw]EERSt13basic_ostreamIT_T0_ES7_RKSbI*;
    _ZStlsISt11char_traitsI[cw]EERSt13basic_ostream*;
    _ZStlsId[cw]St11char_traitsI[cw]EERSt13basic_ostream*;
    _ZStlsIe[cw]St11char_traitsI[cw]EERSt13basic_ostream*;
    _ZStlsIf[cw]St11char_traitsI[cw]EERSt13basic_ostream*;

    # std::locale destructors
    _ZNSt6localeD*;

    # std::locale::name() returning old std::string
    _ZNKSt6locale4nameEv;

    # std::locale::facet destructors
    _ZNSt6locale5facetD*;

    # std::locale::_Impl constructors, destructors
    _ZNSt6locale5_ImplC*;
    _ZNSt6locale5_ImplD*;

    # std::ios_base, std::ios_base::Init destructors
    _ZNSt8ios_baseD*;
    _ZNSt8ios_base4InitD*;

    # std::ios_base::failure constructors, destructors, virtual function
    _ZNSt8ios_base7failureC*;
    _ZNSt8ios_base7failureD*;
    _ZNKSt8ios_base7failure4whatEv;

    # bool std::has_facet
    _ZSt9has_facetIS*;

    # std::use_facet
    _ZSt9use_facetIS*;

    # std::codecvt
    _ZNSt7codecvtI[cw]*;
    _ZNKSt7codecvtI[cw]*;

    # std::codecvt_byname
    _ZNSt14codecvt_bynameI[cw]c11__mbstate_tEC[12]EPKc[jmy];
    _ZNSt14codecvt_bynameI[cw]c11__mbstate_tED*;
#if defined (_WIN32) && !defined (__CYGWIN__)
    _ZNSt14codecvt_bynameI[cw]ciE[CD]*;
#endif

    # std::collate
    _ZNSt7collateI[cw]*;
    _ZNKSt7collateI[cw]*;

    # std::collate_byname
    _ZNSt14collate_bynameI[cw]EC[12]EPKc[jmy];
    _ZNSt14collate_bynameI[cw]ED*;

    # std::ctype
    _ZNKSt5ctypeIcE8*;
    _ZNKSt5ctypeIcE9*;
    _ZNKSt5ctypeIcE10*;
    _ZNKSt5ctypeIw*;
    _ZNSt5ctypeI[cw]*;

    # std::ctype_base
    _ZNSt10ctype_base[56][ac-z]*;

    # std::ctype_byname
    _ZNSt12ctype_bynameI[cw]EC[12]EPKc?*;
    _ZNSt12ctype_bynameI[cw]ED*;

    # std::num_get
    _ZNKSt7num_getI[cw]St19istreambuf_iteratorI[cw]St11char_traitsI[cw]EEE[2-9]*;
    _ZNKSt7num_getI[cw]St19istreambuf_iteratorI[cw]St11char_traitsI[cw]EEE14_M_extract_intI*;
    _ZNKSt7num_getI[cw]St19istreambuf_iteratorI[cw]St11char_traitsI[cw]EEE16_M_extract_floatI*;

    # std::num_put
    _ZNKSt7num_putI[cw]St19ostreambuf_iteratorI[cw]St11char_traitsI[cw]EEE[2-9]*;
    _ZNKSt7num_putI[cw]St19ostreambuf_iteratorI[cw]St11char_traitsI[cw]EEE1[234]*;
    _ZNKSt7num_putI[cw]St19ostreambuf_iteratorI[cw]St11char_traitsI[cw]EEE15_M_insert_floatI*;

    # std::numpunct_byname
    _ZNSt15numpunct_bynameI[cw]EC[12]EPKc[jmy];
    _ZNSt15numpunct_bynameI[cw]ED*;

    # std::money_get
    _ZNKSt9money_getI[cw]St19istreambuf_iteratorI[cw]St11char_traitsI[cw]EEE[2-9]*;
    _ZNKSt9money_getI[cw]St19istreambuf_iteratorI[cw]St11char_traitsI[cw]EEE10_M_extractILb[01]EEES3_S3_S3_RSt8ios_baseRSt12_Ios_IostateRSs;

    # std::money_put
    _ZNKSt9money_putI[cw]St19ostreambuf_iteratorI[cw]St11char_traitsI[cw]EEE[1-8]*;
    _ZNKSt9money_putIcSt19ostreambuf_iteratorIcSt11char_traitsIcEEE9_M_insertILb[01]EEES3_S3_RSt8ios_basecRKSs;
    _ZNKSt9money_putIwSt19ostreambuf_iteratorIwSt11char_traitsIwEEE9_M_insertILb[01]EEES3_S3_RSt8ios_basewRKSbIwS2_SaIwEE;

    # std::moneypunct_byname
    _ZNSt17moneypunct_bynameI[cw]Lb[01]EEC[12]EPKc[jmy];
    _ZNSt17moneypunct_bynameI[cw]Lb[01]EED*;
    _ZNSt17moneypunct_bynameI[cw]Lb[01]EE4intlE;

    # std::time_get
    _ZNSt8time_get*;
    _ZNKSt8time_getI[cw]St19istreambuf_iteratorI[cw]St11char_traitsI[cw]EEE1*;
    _ZNKSt8time_getI[cw]St19istreambuf_iteratorI[cw]St11char_traitsI[cw]EEE8*;
    _ZNKSt8time_getI[cw]St19istreambuf_iteratorI[cw]St11char_traitsI[cw]EEE21*;

    # std::time_get_byname
    _ZNSt15time_get_bynameI[cw]*EEEC[12]EPKc[jmy];
    _ZNSt15time_get_bynameI[cw]*EEED[012]Ev;

    # std::time_put
    _ZNSt8time_put*;
    _ZNKSt8time_put*;

    # std::time_put_byname
    _ZNSt15time_put_bynameI[cw]*EC[12]EPKc?*;
    _ZNSt15time_put_bynameI[cw]*ED[012]Ev;

    # std::numeric_limits
    _ZNSt21__numeric_limits_base[5-9]*;
    _ZNSt21__numeric_limits_base1[0-7][hirt]*;
    _ZNSt21__numeric_limits_base1[0-7]mi*;
    _ZNSt21__numeric_limits_base1[0-7]max_e*;

    _ZNSt14numeric_limitsI[a-m]E[5-9]*;
    _ZNSt14numeric_limitsI[p-z]E[5-9]*;
    _ZNSt14numeric_limitsI[a-m]E1[0-7][hirt]*;
    _ZNSt14numeric_limitsI[p-z]E1[0-7][hirt]*;
    _ZNSt14numeric_limitsI[a-m]E1[0-7]mi*;
    _ZNSt14numeric_limitsI[p-z]E1[0-7]mi*;
    _ZNSt14numeric_limitsI[a-m]E1[0-7]max_e*;
    _ZNSt14numeric_limitsI[p-z]E1[0-7]max_e*;

    # std::messages_byname
    _ZNSt15messages_bynameI[cw]EC[12]EPKc[jmy];
    _ZNSt15messages_bynameI[cw]ED*;

    # std::_Rb_tree
    _ZSt18_Rb_tree_decrementPKSt18_Rb_tree_node_base;
    _ZSt18_Rb_tree_decrementPSt18_Rb_tree_node_base;
    _ZSt18_Rb_tree_incrementPKSt18_Rb_tree_node_base;
    _ZSt18_Rb_tree_incrementPSt18_Rb_tree_node_base;
    _ZSt20_Rb_tree_black_countPKSt18_Rb_tree_node_baseS1_;
    _ZSt20_Rb_tree_rotate_leftPSt18_Rb_tree_node_baseRS0_;
    _ZSt21_Rb_tree_rotate_rightPSt18_Rb_tree_node_baseRS0_;
    _ZSt28_Rb_tree_rebalance_for_erasePSt18_Rb_tree_node_baseRS_;
    _ZSt29_Rb_tree_insert_and_rebalancebPSt18_Rb_tree_node_baseS0_RS_;

    # std::__basic_file
    _ZNKSt12__basic_fileIcE7is_openEv;
    _ZNSt12__basic_fileIcE2fdEv;
    _ZNSt12__basic_fileIcE4openEPKcSt13_Ios_Openmodei;
    _ZNSt12__basic_fileIcE4syncEv;
    _ZNSt12__basic_fileIcE5closeEv;
    _ZNSt12__basic_fileIcE6xsgetn*;
    _ZNSt12__basic_fileIcE6xsputn*;
    _ZNSt12__basic_fileIcE7seekoff*;
    _ZNSt12__basic_fileIcE8sys_openE*St13_Ios_Openmode;
    _ZNSt12__basic_fileIcE8xsputn_2*;
    _ZNSt12__basic_fileIcE9showmanycEv;
    _ZNSt12__basic_fileIcEC*;
    _ZNSt12__basic_fileIcED*;

    # std::__convert_to_v
    _ZSt14__convert_to_vI[^g]*;

    # __gnu_cxx::stdio_sync_filebuf
    _ZTVN9__gnu_cxx18stdio_sync_filebufI[cw]St11char_traitsI[cw]EEE;

    # __gnu_cxx::__atomic_add
    # __gnu_cxx::__exchange_and_add
    _ZN9__gnu_cxx12__atomic_addEPV[il]i;
    _ZN9__gnu_cxx18__exchange_and_addEPV[il]i;

    # debug mode
    _ZN10__gnu_norm15_List_node_base4hook*;
    _ZN10__gnu_norm15_List_node_base4swap*;
    _ZN10__gnu_norm15_List_node_base6unhookEv;
    _ZN10__gnu_norm15_List_node_base7reverseEv;
    _ZN10__gnu_norm15_List_node_base8transfer*;

    # __gnu_debug::_Safe_sequence_base and _Safe_iterator_base
    _ZN11__gnu_debug19_Safe_sequence_base13_M_detach_allEv;
    _ZN11__gnu_debug19_Safe_sequence_base18_M_detach_singularEv;
    _ZN11__gnu_debug19_Safe_sequence_base22_M_revalidate_singularEv;
    _ZN11__gnu_debug19_Safe_sequence_base7_M_swapERS0_;
    _ZN11__gnu_debug19_Safe_iterator_base9_M_attachEPNS_19_Safe_sequence_baseEb;
    _ZN11__gnu_debug19_Safe_iterator_base9_M_detachEv;
    _ZNK11__gnu_debug19_Safe_iterator_base11_M_singularEv;
    _ZNK11__gnu_debug19_Safe_iterator_base14_M_can_compareERKS0_;

    # __gnu_debug::_Error_formatter
    _ZNK11__gnu_debug16_Error_formatter10_M_message*;
    _ZNK11__gnu_debug16_Error_formatter10_Parameter*;
    _ZNK11__gnu_debug16_Error_formatter13_M_print_word*;
    _ZNK11__gnu_debug16_Error_formatter15_M_print_string*;
    _ZNK11__gnu_debug16_Error_formatter8_M_error*;

    # exceptions as functions
    _ZSt16__throw_bad_castv;
    _ZSt17__throw_bad_allocv;
    _ZSt18__throw_bad_typeidv;
    _ZSt19__throw_ios_failurePKc;
    _ZSt19__throw_logic_errorPKc;
    _ZSt19__throw_range_errorPKc;
    _ZSt20__throw_domain_errorPKc;
    _ZSt20__throw_length_errorPKc;
    _ZSt20__throw_out_of_rangePKc;
    _ZSt21__throw_bad_exceptionv;
    _ZSt21__throw_runtime_errorPKc;
    _ZSt22__throw_overflow_errorPKc;
    _ZSt23__throw_underflow_errorPKc;
    _ZSt24__throw_invalid_argumentPKc;

    # operator new(size_t)
    _Znw[jmy];
    # operator new(size_t, std::nothrow_t const&)
    _Znw[jmy]RKSt9nothrow_t;

    # operator delete(void*)
    _ZdlPv;
    # operator delete(void*, std::nothrow_t const&)
    _ZdlPvRKSt9nothrow_t;

    # operator new[](size_t)
    _Zna[jmy];
    # operator new[](size_t, std::nothrow_t const&)
    _Zna[jmy]RKSt9nothrow_t;

    # operator delete[](void*)
    _ZdaPv;
    # operator delete[](void*, std::nothrow_t const&)
    _ZdaPvRKSt9nothrow_t;

    # virtual table
    _ZTVNSt8ios_base7failureE;
    _ZTVNSt6locale5facetE;
    _ZTVS[a-z];
    _ZTVSt[0-6][A-Za-z]*;
    _ZTVSt7[A-Zab]*;
    _ZTVSt7codecvtI[cw]c*;
    _ZTVSt7collateI[cw]E;
    _ZTVSt7[d-z]*;
    _ZTVSt[89][A-Za-z]*;
#   _ZTVSt[0-9][0-9][A-Za-z]*;
    _ZTVSt[0-9][0-9][A-Z]*;
#   _ZTVSt[0-9][0-9][a-d]*;
    _ZTVSt[0-9][0-9]a*;
    _ZTVSt10bad_typeid;
    _ZTVSt13bad_exception;
#   _ZTVSt[0-9][0-9]basic*;
    _ZTVSt1[34]basic*;
    _ZTVSt15basic_streambufI*;
    _ZTVSt15basic_stringbufI*;
    _ZTVSt18basic_stringstreamI*;
    _ZTVSt19basic_istringstreamI*;
    _ZTVSt19basic_ostringstreamI*;
    _ZTVSt10ctype_base;
    _ZTVSt12codecvt_base;
    _ZTVSt12ctype_bynameI[cw]E;
    _ZTVSt14co*_bynameI[cw]*;
    _ZTVSt12domain_error;
    _ZTVSt10istrstream;
    _ZTVSt16invalid_argument;
    _ZTVSt11logic_error;
    _ZTVSt12length_error;
    _ZTVSt1[07]money*;
    _ZTVSt1[35]messages*;
    _ZTVSt15numpunct_bynameI[cw]E;
    _ZTVSt1[024]o*;
    _ZTVSt11range_error;
    _ZTVSt13runtime_error;
    _ZTVSt12strstreambuf;
    _ZTVSt15time*;
    _ZTVSt15underflow_error;

    _ZTVSt11__timepunctI[cw]E;
    _ZTVSt23__codecvt_abstract_baseI[cw]c11__mbstate_tE;
    _ZTVSt21__ctype_abstract_baseI[cw]E;

    # VTT structure
    _ZTTS[a-z];
    _ZTTSt[0-9][A-Za-z]*;
#   _ZTTSt[0-9][0-9][A-Za-z]*;
    _ZTTSt1[0-4]*;
    _ZTTSt15a*;
    _ZTTSt15basic_streambufI*;
    _ZTTSt15basic_stringbufI*;
    _ZTTSt15[c-z]*;
    _ZTTSt1[67]*;
    _ZTTSt18basic_stringstreamI*;
    _ZTTSt19basic_istringstreamI*;
    _ZTTSt19basic_ostringstreamI*;
    _ZTTSt[2-9]*;

    # typeinfo structure
    _ZTIS[a-z];
    _ZTISt[0-6][A-Za-z]*;
    _ZTISt7[A-Zab]*;
    _ZTISt7codecvtI[cw]c*;
    _ZTISt7collateI[cw]E;
    _ZTISt7[d-z]*;
    _ZTISt[89][A-Za-z]*;
#   _ZTISt[0-9][0-9][A-Za-z]*;
    _ZTISt[0-9][0-9][A-Z]*;
#   _ZTISt[0-9][0-9][a-d]*;
    _ZTISt[0-9][0-9]a*;
    _ZTISt10bad_typeid;
    _ZTISt13bad_exception;
#   _ZTISt[0-9][0-9]basic*;
    _ZTISt1[34]basic*;
    _ZTISt15basic_streambufI*;
    _ZTISt15basic_stringbufI*;
    _ZTISt18basic_stringstreamI*;
    _ZTISt19basic_istringstreamI*;
    _ZTISt19basic_ostringstreamI*;
    _ZTISt10ctype_base;
    _ZTISt12codecvt_base;
    _ZTISt12ctype_bynameI[cw]E;
    _ZTISt14co*_bynameI[cw]*;
    _ZTISt12domain_error;
    _ZTISt10istrstream;
    _ZTISt16invalid_argument;
    _ZTISt11logic_error;
    _ZTISt12length_error;
    _ZTISt1[07]money*;
    _ZTISt1[35]messages*;
    _ZTISt15numpunct_bynameI[cw]E;
    _ZTISt1[024]o*;
    _ZTISt11range_error;
    _ZTISt13runtime_error;
    _ZTISt12strstreambuf;
    _ZTISt15time*;
    _ZTISt15underflow_error;
    _ZTISt11__timepunctI[cw]E;
    _ZTISt10__num_base;
    _ZTISt21__ctype_abstract_baseI[cw]E;
    _ZTISt23__codecvt_abstract_baseI[cw]c11__mbstate_tE;
#    _ZTISt16__numpunct_cacheI[cw]E;
#    _ZTISt17__timepunct_cacheI[cw]E;
#    _ZTISt18__moneypunct_cacheI[cw]Lb?EE;
    _ZTINSt8ios_base7failureE;
    _ZTINSt6locale5facetE;
    _ZTIN9__gnu_cxx18stdio_sync_filebufI[cw]St11char_traitsI[cw]EEE;
    _ZTIN9__gnu_cxx13stdio_filebufI[cw]St11char_traitsI[cw]EEE;

    # typeinfo name
    _ZTSNSt8ios_base7failureE;
    _ZTSNSt6locale5facetE;
    _ZTSS[a-z];
    _ZTSSt[0-6][A-Za-z]*;
    _ZTSSt7[A-Zab]*;
    _ZTSSt7codecvtI[cw]c*;
    _ZTSSt7collateI[cw]E;
    _ZTSSt7[d-z]*;
    _ZTSSt[89][A-Za-z]*;
#   _ZTSSt[0-9][0-9][A-Za-z]*;
    _ZTSSt[0-9][0-9][A-Z]*;
#   _ZTSSt[0-9][0-9][a-d]*;
    _ZTSSt[0-9][0-9]a*;
    _ZTSSt10bad_typeid;
    _ZTSSt13bad_exception;
#   _ZTSSt[0-9][0-9]basic*;
    _ZTSSt1[34]basic*;
    _ZTSSt15basic_stringbufI*;
    _ZTSSt15basic_streambufI*;
    _ZTSSt18basic_stringstreamI*;
    _ZTSSt19basic_istringstreamI*;
    _ZTSSt19basic_ostringstreamI*;
    _ZTSSt10ctype_base;
    _ZTSSt12codecvt_base;
    _ZTSSt12ctype_bynameI[cw]E;
    _ZTSSt14co*_bynameI[cw]*;
    _ZTSSt12domain_error;
    _ZTSSt10istrstream;
    _ZTSSt16invalid_argument;
    _ZTSSt11logic_error;
    _ZTSSt12length_error;
    _ZTSSt1[07]money*;
    _ZTSSt1[35]messages*;
    _ZTSSt15numpunct_bynameI[cw]E;
    _ZTSSt1[024]o*;
    _ZTSSt11range_error;
    _ZTSSt13runtime_error;
    _ZTSSt12strstreambuf;
    _ZTSSt15time*;
    _ZTSSt15underflow_error;

    _ZTSSt11__timepunctI[cw]E;
    _ZTSSt10__num_base;
    _ZTSSt21__ctype_abstract_baseI[cw]E;
    _ZTSSt23__codecvt_abstract_baseI[cw]c11__mbstate_tE;
    _ZTSN9__gnu_cxx18stdio_sync_filebufI[cw]St11char_traitsI[cw]EEE;
    _ZTSN9__gnu_cxx13stdio_filebufI[cw]St11char_traitsI[cw]EEE;

    # std::bad_alloc::~bad_alloc, std::bad_cast::~bad_cast,
    # std::bad_typeid::~bad_typeid, std::bad_exception::~bad_exception
    _ZNSt9bad_allocD*;
    _ZNSt8bad_castD*;
    _ZNSt10bad_typeidD*;
    _ZNSt13bad_exceptionD*;

    # function-scope static objects requires a guard variable.
    _ZGVNSt[2-6]*;
    _ZGVNSt7collateI[cw]*;
    _ZGVNSt7num_getI[cw]*;
    _ZGVNSt7num_putI[cw]*;
    _ZGVNSt8messagesI[cw]*;
    _ZGVNSt8numpunctI[cw]*;
    _ZGVNSt8time_getI[cw]*;
    _ZGVNSt8time_putI[cw]*;
    _ZGVNSt9money_getI[cw]*;
    _ZGVNSt9money_putI[cw]*;
    _ZGVNSt1[^07]*;
    _ZGVNSt10moneypunctI[cw]Lb[01]*;

    # exception constructors taking std::string
    _ZNSt11logic_errorC[12]ERKSs;
    _ZNSt13runtime_errorC[12]ERKSs;
    _ZNSt11range_errorC[12]ERKSs;
    _ZNSt12domain_errorC[12]ERKSs;
    _ZNSt12length_errorC[12]ERKSs;
    _ZNSt12out_of_rangeC[12]ERKSs;
    _ZNSt14overflow_errorC[12]ERKSs;
    _ZNSt15underflow_errorC[12]ERKSs;
    _ZNSt16invalid_argumentC[12]ERKSs;

    # complete, deleting and base destructors
    _ZNSt11logic_errorD[012]Ev;
    _ZNSt13runtime_errorD[012]Ev;

    # complete and deleting destructors where base destructors should not
    # be exported.
    _ZNSt11range_errorD[01]Ev;
    _ZNSt12domain_errorD[01]Ev;
    _ZNSt12length_errorD[01]Ev;
    _ZNSt12out_of_rangeD[01]Ev;
    _ZNSt14overflow_errorD[01]Ev;
    _ZNSt15underflow_errorD[01]Ev;
    _ZNSt16invalid_argumentD[01]Ev;

    # virtual function thunks
#   _ZThn8_NS*;
    _ZThn8_NS[dio]*;
    _ZThn8_NSt1[0-9]a*;
    _ZThn8_NSt1[34]basic*;
    _ZThn8_NSt18basic_stringstreamI*;
    _ZThn8_NSt19basic_[io]stringstreamI*;
    _ZThn8_NSt1[0-9][c-z]*;
    _ZThn8_NSt[2-9][a-z0-9]*;
#   _ZThn16_NS*;
    _ZThn16_NS[dio]*;
    _ZThn16_NSt1[0-9]a*;
    _ZThn16_NSt1[34]basic*;
    _ZThn16_NSt18basic_stringstreamI*;
    _ZThn16_NSt19basic_[io]stringstreamI*;
    _ZThn16_NSt1[0-9][c-z]*;
    _ZThn16_NSt[2-9][a-z0-9]*;
#   _ZTv0_n12_NS*;
    _ZTv0_n12_NS[dio]*;
    _ZTv0_n12_NSt1[0-9]a*;
    _ZTv0_n12_NSt1[34]basic*;
    _ZTv0_n12_NSt15basic_streambufI*;
    _ZTv0_n12_NSt15basic_stringbufI*;
    _ZTv0_n12_NSt18basic_stringstreamI*;
    _ZTv0_n12_NSt19basic_[io]stringstreamI*;
    _ZTv0_n12_NSt1[0-9][c-z]*;
    _ZTv0_n12_NSt[2-9][a-z0-9]*;
#   _ZTv0_n24_NS*;
    _ZTv0_n24_NS[dio]*;
    _ZTv0_n24_NSt1[0-9]a*;
    _ZTv0_n24_NSt1[34]basic*;
    _ZTv0_n24_NSt15basic_streambufI*;
    _ZTv0_n24_NSt15basic_stringbufI*;
    _ZTv0_n24_NSt18basic_stringstreamI*;
    _ZTv0_n24_NSt19basic_[io]stringstreamI*;
    _ZTv0_n24_NSt1[0-9][c-z]*;
    _ZTv0_n24_NSt[2-9][a-z0-9]*;

    # stub functions from libmath
    sinf;
    sinl;
    sinhf;
    sinhl;
    cosf;
    cosl;
    coshf;
    coshl;
    tanf;
    tanl;
    tanhf;
    tanhl;
    atan2f;
    atan2l;
    expf;
    expl;
    hypotf;
    hypotl;
    hypot;
    logf;
    logl;
    log10f;
    log10l;
    powf;
    powl;
    sqrtf;
    sqrtl;
    copysignf;

#ifdef HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT
   # GLIBCXX_ABI compatibility only.
    # std::string
    _ZNKSs11_M_disjunctEPKc;
    _ZNKSs15_M_check_lengthE[jmy][jmy]PKc;
    _ZNSs4_Rep26_M_set_length_and_sharableE*;
    _ZNSs7_M_copyEPcPKc[jmy];
    _ZNSs7_M_moveEPcPKc[jmy];
    _ZNSs9_M_assignEPc[jmy]c;

    # std::wstring
    _ZNKSbIwSt11char_traitsIwESaIwEE11_M_disjunctEPKw;
    _ZNKSbIwSt11char_traitsIwESaIwEE15_M_check_lengthE[jmy][jmy]PKc;
    _ZNSbIwSt11char_traitsIwESaIwEE4_Rep26_M_set_length_and_sharableE*;
    _ZNSbIwSt11char_traitsIwESaIwEE7_M_copyEPwPKw[jmy];
    _ZNSbIwSt11char_traitsIwESaIwEE7_M_moveEPwPKw[jmy];
    _ZNSbIwSt11char_traitsIwESaIwEE9_M_assignEPw[jmy]w;

    _ZNKSt13basic_fstreamI[cw]St11char_traitsI[cw]EE7is_openEv;
    _ZNKSt14basic_ifstreamI[cw]St11char_traitsI[cw]EE7is_openEv;
    _ZNKSt14basic_ofstreamI[cw]St11char_traitsI[cw]EE7is_openEv;

    _ZNSi6ignoreE[ilvx];
    _ZNSt13basic_istreamIwSt11char_traitsIwEE6ignoreE[ilvx];

    _ZNSt11char_traitsI[cw]E2eqERK[cw]S2_;

    _ZNSt19istreambuf_iteratorI[cw]St11char_traitsI[cw]EEppEv;
#endif

    # std::locale::Impl _M_ members
    _ZNSt6locale5_Impl16_M_install_facetEPKNS_2idEPKNS_5facetE;
    _ZNSt6locale5_Impl16_M_replace_facetEPKS0_PKNS_2idE;
    _ZNSt6locale5_Impl19_M_replace_categoryEPKS0_PKPKNS_2idE;
    _ZNSt6locale5_Impl21_M_replace_categoriesEPKS0_i;

    # std::uncaught_exception()
    _ZSt18uncaught_exceptionv;

  # DO NOT DELETE THIS LINE.  Port-specific symbols, if any, will be here.

  local:
    *;
};

GLIBCXX_3.4.1 {

    _ZNSt12__basic_fileIcE4fileEv;

} GLIBCXX_3.4;

GLIBCXX_3.4.2 {

    _ZN9__gnu_cxx18stdio_sync_filebufI[cw]St11char_traitsI[cw]EE4fileEv;

    _ZN9__gnu_cxx17__pool_alloc_base9_M_refillE[jmy];
    _ZN9__gnu_cxx17__pool_alloc_base16_M_get_free_listE[jmy];
    _ZN9__gnu_cxx17__pool_alloc_base12_M_get_mutexEv;

} GLIBCXX_3.4.1;

GLIBCXX_3.4.3 {

    # stub functions from libmath
    acosf;
    acosl;
    asinf;
    asinl;
    atanf;
    atanl;
    ceilf;
    ceill;
    floorf;
    floorl;
    fmodf;
    fmodl;
    frexpf;
    frexpl;
    ldexpf;
    ldexpl;
    modff;
    modfl;

} GLIBCXX_3.4.2;

GLIBCXX_3.4.4 {

    _ZN9__gnu_cxx6__poolILb0EE13_M_initializeEv;
    _ZN9__gnu_cxx6__poolILb1EE13_M_initializeEPFvPvE;
    _ZN9__gnu_cxx6__poolILb1EE21_M_destroy_thread_keyEPv;
    _ZN9__gnu_cxx6__poolILb1EE16_M_get_thread_idEv;
    _ZN9__gnu_cxx6__poolILb[01]EE16_M_reserve_blockE[jmy][jmy];
    _ZN9__gnu_cxx6__poolILb[01]EE16_M_reclaim_blockEPc[jmy];
    _ZN9__gnu_cxx6__poolILb[01]EE10_M_destroyEv;

    _ZN9__gnu_cxx9free_list6_M_getE*;
    _ZN9__gnu_cxx9free_list8_M_clearEv;

} GLIBCXX_3.4.3;

GLIBCXX_3.4.5 {

    # std::string
    _ZNKSs11_M_disjunctEPKc;
    _ZNKSs15_M_check_lengthE[jmy][jmy]PKc;
    _ZNSs4_Rep26_M_set_length_and_sharableE*;
    _ZNSs7_M_copyEPcPKc[jmy];
    _ZNSs7_M_moveEPcPKc[jmy];
    _ZNSs9_M_assignEPc[jmy]c;

    # std::wstring
    _ZNKSbIwSt11char_traitsIwESaIwEE11_M_disjunctEPKw;
    _ZNKSbIwSt11char_traitsIwESaIwEE15_M_check_lengthE[jmy][jmy]PKc;
    _ZNSbIwSt11char_traitsIwESaIwEE4_Rep26_M_set_length_and_sharableE*;
    _ZNSbIwSt11char_traitsIwESaIwEE7_M_copyEPwPKw[jmy];
    _ZNSbIwSt11char_traitsIwESaIwEE7_M_moveEPwPKw[jmy];
    _ZNSbIwSt11char_traitsIwESaIwEE9_M_assignEPw[jmy]w;

    _ZNKSt13basic_fstreamI[cw]St11char_traitsI[cw]EE7is_openEv;
    _ZNKSt14basic_ifstreamI[cw]St11char_traitsI[cw]EE7is_openEv;
    _ZNKSt14basic_ofstreamI[cw]St11char_traitsI[cw]EE7is_openEv;

    _ZNSi6ignoreE[ilvx];
    _ZNSt13basic_istreamIwSt11char_traitsIwEE6ignoreE[ilvx];

    _ZNSt11char_traitsI[cw]E2eqERK[cw]S2_;

    # Those template instantiations weren't exported on Solaris in GCC 4.6
    # and aren't necessary for correct operation, so don't emit them now
    # (PR libstdc++/52188).
#if !defined(__sun__) && !defined(__svr4__)
    _ZNSt19istreambuf_iteratorI[cw]St11char_traitsI[cw]EEppEv;
#endif
} GLIBCXX_3.4.4;

GLIBCXX_3.4.6 {

    _ZSt17__copy_streambufsI[cw]St11char_traitsI[cw]EE[ix]PSt15basic_streambuf*;
    _ZNSt8ios_base17_M_call_callbacksENS_5eventE;
    _ZNSt8ios_base20_M_dispose_callbacksEv;
    _ZNSt6locale5facet13_S_get_c_nameEv;

    _ZNSt15basic_stringbufI[cw]St11char_traitsI[cw]ESaI[cw]EE9showmanycEv;

    _ZN9__gnu_cxx6__poolILb1EE13_M_initializeEv;

} GLIBCXX_3.4.5;

GLIBCXX_3.4.7 {

    _ZNSt6locale5_Impl16_M_install_cacheEPKNS_5facetE[jmy];

} GLIBCXX_3.4.6;

GLIBCXX_3.4.8 {

    _ZSt17__copy_streambufsI[cw]St11char_traitsI[cw]EElPSt15basic_streambuf*;

} GLIBCXX_3.4.7;

GLIBCXX_3.4.9 {

    _ZNSt6__norm15_List_node_base4hook*;
    _ZNSt6__norm15_List_node_base4swap*;
    _ZNSt6__norm15_List_node_base6unhookEv;
    _ZNSt6__norm15_List_node_base7reverseEv;
    _ZNSt6__norm15_List_node_base8transfer*;

    _ZNSo9_M_insertI[^g]*;
    _ZNSt13basic_ostreamIwSt11char_traitsIwEE9_M_insertI[^g]*;
    _ZNSi10_M_extractI[^g]*;
    _ZNSt13basic_istreamIwSt11char_traitsIwEE10_M_extractI[^g]*;

    _ZSt21__copy_streambufs_eofI[cw]St11char_traitsI[cw]EE[ilx]PSt15basic_streambuf*;

    _ZSt16__ostream_insert*;

    _ZN11__gnu_debug19_Safe_sequence_base12_M_get_mutexEv;
    _ZN11__gnu_debug19_Safe_iterator_base16_M_attach_singleEPNS_19_Safe_sequence_baseEb;
    _ZN11__gnu_debug19_Safe_iterator_base16_M_detach_singleEv;
    _ZN11__gnu_debug19_Safe_iterator_base12_M_get_mutexEv;

    _ZNKSt9bad_alloc4whatEv;
    _ZNKSt8bad_cast4whatEv;
    _ZNKSt10bad_typeid4whatEv;
    _ZNKSt13bad_exception4whatEv;

} GLIBCXX_3.4.8;

GLIBCXX_3.4.10 {

    _ZNK11__gnu_debug16_Error_formatter17_M_get_max_lengthEv;

    _ZNKSt3tr14hashIRKSbIwSt11char_traitsIwESaIwEEEclES6_;
    _ZNKSt3tr14hashIRKSsEclES2_;
    _ZNKSt3tr14hashISbIwSt11char_traitsIwESaIwEEEclES4_;
    _ZNKSt3tr14hashISsEclESs;
    _ZNKSt3tr14hashIeEclEe;

    _ZNKSt4hashIRKSbIwSt11char_traitsIwESaIwEEEclES5_;
    _ZNKSt4hashIRKSsEclES1_;
    _ZNKSt4hashISbIwSt11char_traitsIwESaIwEEEclES3_;
    _ZNKSt4hashISsEclESs;
    _ZNKSt4hashIeEclEe;

    _ZSt17__verify_groupingPKc[jmy]RKSs;

    _ZNSt8__detail12__prime_listE;
    _ZNSt3tr18__detail12__prime_listE;

    # for parallel mode
    _ZN14__gnu_parallel9_Settings3getEv;
    _ZN14__gnu_parallel9_Settings3setERS0_;

    _ZNSt9__cxx199815_List_node_base4hook*;
    _ZNSt9__cxx199815_List_node_base4swap*;
    _ZNSt9__cxx199815_List_node_base6unhookEv;
    _ZNSt9__cxx199815_List_node_base7reverseEv;
    _ZNSt9__cxx199815_List_node_base8transfer*;

    _ZNSt15basic_streambufI[cw]St11char_traitsI[cw]EE6stosscEv;

    _ZN9__gnu_cxx18stdio_sync_filebufI[cw]St11char_traitsI[cw]EE4syncEv;
    _ZN9__gnu_cxx18stdio_sync_filebufI[cw]St11char_traitsI[cw]EE[5-9]*;
    _ZN9__gnu_cxx18stdio_sync_filebufI[cw]St11char_traitsI[cw]EEC[12]EP*;
    _ZN9__gnu_cxx18stdio_sync_filebufI[cw]St11char_traitsI[cw]EED[^2]*;

} GLIBCXX_3.4.9;

GLIBCXX_3.4.11 {

    # atomic
    __atomic_flag_for_address;
    __atomic_flag_wait_explicit;
    atomic_flag_clear_explicit;
    atomic_flag_test_and_set_explicit;
    _ZNVSt9__atomic011atomic_flag12test_and_setESt12memory_order;
    _ZNVSt9__atomic011atomic_flag5clearESt12memory_order;

    # mutex
    _ZSt10adopt_lock;
    _ZSt10defer_lock;
    _ZSt11try_to_lock;

    _ZTISt10lock_error;
    _ZTVSt10lock_error;
    _ZTSSt10lock_error;
    _ZNKSt10lock_error4whatEv;

    _ZSt11__once_call;
    _ZSt15__once_callable;
    _ZSt14__once_functor;
    _ZSt23__get_once_functor_lockv;
    __once_proxy;

    # condition_variable
    _ZNSt18condition_variable10notify_allEv;
    _ZNSt18condition_variable10notify_oneEv;
    _ZNSt18condition_variable4waitERSt11unique_lockISt5mutexE;
    _ZNSt18condition_variableC1Ev;
    _ZNSt18condition_variableC2Ev;
    _ZNSt18condition_variableD1Ev;
    _ZNSt18condition_variableD2Ev;
    _ZNSt22condition_variable_anyC1Ev;
    _ZNSt22condition_variable_anyC2Ev;
    _ZNSt22condition_variable_anyD1Ev;
    _ZNSt22condition_variable_anyD2Ev;

    # thread
    _ZNSt6thread4joinEv;
    _ZNSt6thread6detachEv;
    _ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE;

    # system_error
    _ZSt15system_categoryv;
    _ZSt16generic_categoryv;

    _ZNKSt10error_code23default_error_conditionEv;
    _ZNKSt14error_category23default_error_conditionEi;

    _ZNKSt14error_category10equivalentERKSt10error_codei;
    _ZNKSt14error_category10equivalentEiRKSt15error_condition;

    _ZTISt14error_category;
    _ZTSSt14error_category;
    _ZTVSt14error_category;

    _ZTSSt12system_error;
    _ZTISt12system_error;
    _ZTVSt12system_error;
    _ZNSt12system_errorD*Ev;

    _ZNKSt4hashISt10error_codeEclES0_;

    _ZSt20__throw_system_errori;

    # char16_t and char32_t
    _ZNSt14numeric_limitsIDiE[5-9]*;
    _ZNSt14numeric_limitsIDsE[5-9]*;
    _ZNSt14numeric_limitsIDiE1[0-7][hirt]*;
    _ZNSt14numeric_limitsIDsE1[0-7][hirt]*;
    _ZNSt14numeric_limitsIDiE1[0-7]mi*;
    _ZNSt14numeric_limitsIDsE1[0-7]mi*;
    _ZNSt14numeric_limitsIDiE1[0-7]max_e*;
    _ZNSt14numeric_limitsIDsE1[0-7]max_e*;

    # chrono
    _ZNSt6chrono12system_clock12is_monotonicE;
    _ZNSt6chrono12system_clock3nowEv;
    _ZNSt6chrono15monotonic_clock12is_monotonicE;
    _ZNSt6chrono15monotonic_clock3nowEv;

    # string/wstring initializer_list overloads
    _ZNSs6appendESt16initializer_listIcE;
    _ZNSs6assignESt16initializer_listIcE;
    _ZNSs6insertEN9__gnu_cxx17__normal_iteratorIPcSsEESt16initializer_listIcE;
    _ZNSs7replaceEN9__gnu_cxx17__normal_iteratorIPcSsEES2_St16initializer_listIcE;
    _ZNSsC1ESt16initializer_listIcERKSaIcE;
    _ZNSsC2ESt16initializer_listIcERKSaIcE;
    _ZNSsaSESt16initializer_listIcE;
    _ZNSspLESt16initializer_listIcE;
    _ZNSbIwSt11char_traitsIwESaIwEE6appendESt16initializer_listIwE;
    _ZNSbIwSt11char_traitsIwESaIwEE6assignESt16initializer_listIwE;
    _ZNSbIwSt11char_traitsIwESaIwEE6insertEN9__gnu_cxx17__normal_iteratorIPwS2_EESt16initializer_listIwE;
    _ZNSbIwSt11char_traitsIwESaIwEE7replaceEN9__gnu_cxx17__normal_iteratorIPwS2_EES6_St16initializer_listIwE;
    _ZNSbIwSt11char_traitsIwESaIwEEC1ESt16initializer_listIwERKS1_;
    _ZNSbIwSt11char_traitsIwESaIwEEC2ESt16initializer_listIwERKS1_;
    _ZNSbIwSt11char_traitsIwESaIwEEaSESt16initializer_listIwE;
    _ZNSbIwSt11char_traitsIwESaIwEEpLESt16initializer_listIwE;

    # ctype<char>::_M_narrow_init and _M_widen_init
    _ZNKSt5ctypeIcE14_M_narrow_initEv;
    _ZNKSt5ctypeIcE13_M_widen_initEv;

} GLIBCXX_3.4.10;

GLIBCXX_3.4.12 {

    # mutex
    _ZSt27__set_once_functor_lock_ptrPSt11unique_lockISt5mutexE;
    _ZSt16__get_once_mutexv;

} GLIBCXX_3.4.11;

GLIBCXX_3.4.13 {

    # new fstream members
    _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EE4openERKSsSt13_Ios_Openmode;
    _ZNSt13basic_fstreamI[cw]St11char_traitsI[cw]EEC[12]ERKSsSt13_Ios_Openmode;
    _ZNSt13basic_fstreamI[cw]St11char_traitsI[cw]EE4openERKSsSt13_Ios_Openmode;
    _ZNSt14basic_ifstreamI[cw]St11char_traitsI[cw]EEC[12]ERKSsSt13_Ios_Openmode;
    _ZNSt14basic_ifstreamI[cw]St11char_traitsI[cw]EE4openERKSsSt13_Ios_Openmode;
    _ZNSt14basic_ofstreamI[cw]St11char_traitsI[cw]EEC[12]ERKSsSt13_Ios_Openmode;
    _ZNSt14basic_ofstreamI[cw]St11char_traitsI[cw]EE4openERKSsSt13_Ios_Openmode;

} GLIBCXX_3.4.12;

GLIBCXX_3.4.14 {

    # atomic
    _ZNSt9__atomic011atomic_flag12test_and_setESt12memory_order;
    _ZNSt9__atomic011atomic_flag5clearESt12memory_order;

    # future
    _ZNSt12future_errorD*;
    _ZNKSt12future_error4whatEv;
    _ZTSSt12future_error;
    _ZTVSt12future_error;
    _ZTISt12future_error;
    _ZSt20__throw_future_errori;

    # GLIBCXX_ABI compatibility only.
    _ZSt15future_category;

    # string|wstring ::cbegin member functions
    _ZNKSs6cbeginEv;
    _ZNKSs4cendEv;
    _ZNKSs7crbeginEv;
    _ZNKSs5crendEv;
    _ZNKSbIwSt11char_traitsIwESaIwEE4cendEv;
    _ZNKSbIwSt11char_traitsIwESaIwEE6cbeginEv;
    _ZNKSbIwSt11char_traitsIwESaIwEE7crbeginEv;
    _ZNKSbIwSt11char_traitsIwESaIwEE5crendEv;

    # string|wstring ::_S_construct<> and ::_S_construct_aux_2 helpers
    _ZNSs12_S_constructI*;
    _ZNSbIwSt11char_traitsIwESaIwEE12_S_constructI*;
    _ZNSs18_S_construct_aux_2*;
    _ZNSbIwSt11char_traitsIwESaIwEE18_S_construct_aux_2*;

    # string|wstring shrink_to_fit member function
    _ZNSs13shrink_to_fitEv;
    _ZNSbIwSt11char_traitsIwESaIwEE13shrink_to_fitEv;

    # string|wstring move contructor, move assignment operator and
    # move assign.
    _ZNSsC1EOSs;
    _ZNSbIwSt11char_traitsIwESaIwEEC1EOS2_;
    _ZNSsaSEOSs;
    _ZNSbIwSt11char_traitsIwESaIwEEaSEOS2_;
    _ZNSs6assignEOSs;
    _ZNSbIwSt11char_traitsIwESaIwEE6assignEOS2_;

    _ZSt25__throw_bad_function_callv;

    # std::time_get::_M_extract_wday_or_month
    _ZNKSt8time_getI[cw]St19istreambuf_iteratorI[cw]St11char_traitsI[cw]EEE24_M_extract_wday_or_month*;

    # libstdc++/16896
    _ZNSt15_List_node_base7_M_hook*;
    _ZNSt15_List_node_base9_M_unhookEv;
    _ZNSt15_List_node_base10_M_reverseEv;
    _ZNSt15_List_node_base11_M_transfer*;

    _ZNSt6__norm15_List_node_base7_M_hook*;
    _ZNSt6__norm15_List_node_base9_M_unhookEv;
    _ZNSt6__norm15_List_node_base10_M_reverseEv;
    _ZNSt6__norm15_List_node_base11_M_transfer*;

    _ZNSt9__cxx199815_List_node_base7_M_hook*;
    _ZNSt9__cxx199815_List_node_base9_M_unhookEv;
    _ZNSt9__cxx199815_List_node_base10_M_reverseEv;
    _ZNSt9__cxx199815_List_node_base11_M_transfer*;

    # std::numeric_limits::max_digits10
    _ZNSt21__numeric_limits_base12max_digits10E;
    _ZNSt14numeric_limitsI[a-m]E12max_digits10E;
    _ZNSt14numeric_limitsI[p-z]E12max_digits10E;
    _ZNSt14numeric_limitsID[is]E12max_digits10E;

} GLIBCXX_3.4.13;

GLIBCXX_3.4.15 {

    # string|wstring front and back member functions
    _ZNSs5frontEv;
    _ZNKSs5frontEv;
    _ZNSbIwSt11char_traitsIwESaIwEE5frontEv;
    _ZNKSbIwSt11char_traitsIwESaIwEE5frontEv;
    _ZNSs4backEv;
    _ZNKSs4backEv;
    _ZNSbIwSt11char_traitsIwESaIwEE4backEv;
    _ZNKSbIwSt11char_traitsIwESaIwEE4backEv;

    # string|wstring move contructor.
    _ZNSsC2EOSs;
    _ZNSbIwSt11char_traitsIwESaIwEEC2EOS2_;

    # basic_filebuf::_M_get_ext_pos
    _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EE14_M_get_ext_pos*;

    # targets using emutls
    __emutls_v._ZSt11__once_call;
    __emutls_v._ZSt15__once_callable;

    # std::future_category is now a function
    _ZSt15future_categoryv;

    # std::placeholders
    _ZNSt12placeholders*;

    _ZNSt8__detail15_List_node_base7_M_hook*;
    _ZNSt8__detail15_List_node_base9_M_unhookEv;
    _ZNSt8__detail15_List_node_base10_M_reverseEv;
    _ZNSt8__detail15_List_node_base11_M_transfer*;
    _ZNSt8__detail15_List_node_base4swapERS0_S1_;

    _ZNSt11range_errorD2Ev;
    _ZNSt12domain_errorD2Ev;
    _ZNSt12length_errorD2Ev;
    _ZNSt12out_of_rangeD2Ev;
    _ZNSt14overflow_errorD2Ev;
    _ZNSt15underflow_errorD2Ev;
    _ZNSt16invalid_argumentD2Ev;

    _ZNSt11regex_errorD*;
    _ZNKSt11regex_error4whatEv;
    _ZTVSt11regex_error;
    _ZTISt11regex_error;
    _ZSt19__throw_regex_errorNSt15regex_constants10error_typeE;

    # std::bad_weak_ptr
    _ZNSt12bad_weak_ptrD*;
    _ZNKSt12bad_weak_ptr4whatEv;
    _ZTVSt12bad_weak_ptr;
    _ZTISt12bad_weak_ptr;

    # std::bad_function_call
    _ZNSt17bad_function_callD*;
    _ZTISt17bad_function_call;
    _ZTVSt17bad_function_call;

    _ZNSt14error_categoryC*;
    _ZNSt14error_categoryD*;

#ifdef HAVE_EXCEPTION_PTR_SINCE_GCC46
    # std::future symbols are only present in this version when
    # atomic operations on int are always lock-free.
    _ZNSt13__future_base12_Result_baseC*;
    _ZNSt13__future_base12_Result_baseD*;
    _ZTINSt13__future_base12_Result_baseE;
    _ZTVNSt13__future_base12_Result_baseE;

    _ZNSt13__future_base11_State_baseD*;
    _ZTINSt13__future_base11_State_baseE;
    _ZTVNSt13__future_base11_State_baseE;
#endif

} GLIBCXX_3.4.14;

GLIBCXX_3.4.16 {

    # libstdc++/48465
    _ZNSs10_S_compareE[jmy][jmy];
    _ZNSbIwSt11char_traitsIwESaIwEE10_S_compareE[jmy][jmy];

    # basic_streambuf<>::__safe_gbump, __safe_pbump
    _ZNSt15basic_streambufI[cw]St11char_traitsI[cw]EE12__safe_gbumpE*;
    _ZNSt15basic_streambufI[cw]St11char_traitsI[cw]EE12__safe_pbumpE*;

    # basic_stringbuf<>::_M_pbump
    _ZNSt15basic_stringbufI[cw]St11char_traitsI[cw]ESaI[cw]EE8_M_pbumpE*;

} GLIBCXX_3.4.15;

GLIBCXX_3.4.17 {

    # std::thread::hardware_concurrency
    _ZNSt6thread20hardware_concurrencyEv;

    # __gnu_debug::_Safe_unordered_container_base and _Safe_local_iterator_base
    _ZN11__gnu_debug30_Safe_unordered_container_base7_M_swapERS0_;
    _ZN11__gnu_debug30_Safe_unordered_container_base13_M_detach_allEv;
    _ZN11__gnu_debug25_Safe_local_iterator_base9_M_attachEPNS_19_Safe_sequence_baseEb;
    _ZN11__gnu_debug25_Safe_local_iterator_base9_M_detachEv;

    # std::numeric_limits<__int128> and <unsigned __int128>
    _ZNSt14numeric_limitsInE*;
    _ZNSt14numeric_limitsIoE*;

    # std::string::pop_back()
    _ZNSs8pop_backEv;
    # std::wstring::pop_back()
    _ZNSbIwSt11char_traitsIwESaIwEE8pop_backEv;

    # std::_Async_state_common::~_Async_state_common
    _ZTINSt13__future_base19_Async_state_commonE;
    _ZTSNSt13__future_base19_Async_state_commonE;
    _ZTVNSt13__future_base19_Async_state_commonE;
    _ZNSt13__future_base19_Async_state_commonD0Ev;
    _ZNSt13__future_base19_Async_state_commonD1Ev;
    _ZNSt13__future_base19_Async_state_commonD2Ev;

    # std::chrono::steady_clock::now()
    _ZNSt6chrono12steady_clock3nowEv;

} GLIBCXX_3.4.16;

GLIBCXX_3.4.18 {

  global:

    # Names inside the 'extern' block are demangled names.
    extern "C++"
    {
      std::__detail::_Prime_rehash_policy::*;
    };

    _ZNSt13random_device14_M_init_pretr1ERKSs;
    _ZNSt13random_device16_M_getval_pretr1Ev;
    _ZNSt13random_device7_M_finiEv;
    _ZNSt13random_device7_M_initERKSs;
    _ZNSt13random_device9_M_getvalEv;

    # std::this_thread::__sleep_for
    _ZNSt11this_thread11__sleep_for*;

    # std::bad_function_call::what()
    _ZNKSt17bad_function_call4whatEv;

} GLIBCXX_3.4.17;

GLIBCXX_3.4.19 {

    # chrono second generation
    _ZNSt6chrono3_V212steady_clock3nowEv;
    _ZNSt6chrono3_V212steady_clock9is_steadyE;
    _ZNSt6chrono3_V212system_clock3nowEv;
    _ZNSt6chrono3_V212system_clock9is_steadyE;

} GLIBCXX_3.4.18;

GLIBCXX_3.4.20 {

    # std::get_new_handler()
    _ZSt15get_new_handlerv;

    # std::get_terminate()
    _ZSt13get_terminatev;

    # std::get_unexpected()
    _ZSt14get_unexpectedv;

    # std::__throw_out_of_range_fmt(char const*, ...)
    _ZSt24__throw_out_of_range_fmtPKcz;

    # std::regex_error::regex_error(std::regex_constants::error_type)
    _ZNSt11regex_errorC1ENSt15regex_constants10error_typeE;

} GLIBCXX_3.4.19;

GLIBCXX_3.4.21 {

    # std::regex_error::regex_error(std::regex_constants::error_type)
    _ZNSt11regex_errorC2ENSt15regex_constants10error_typeE;

    # void std::thread::_M_start_thread(__shared_base_type, void(*)())
    _ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEEPFvvE;

    # Move/swap functions for iostreams
    _ZNSt8ios_base7_M_swapERS_;
    _ZNSt8ios_base7_M_moveERS_;
    _ZNSt9basic_iosI[cw]St11char_traitsI[cw]EE4moveE[OR]S2_;
    _ZNSt9basic_iosI[cw]St11char_traitsI[cw]EE4swapERS2_;
    _ZNSt9basic_iosI[cw]St11char_traitsI[cw]EE9set_rdbuf*;
    _ZNSt15basic_streambufI[cw]St11char_traitsI[cw]EE4swapERS2_;
    _ZNS[dio]4swapERS[dio];
    _ZNS[dio]aSEOS[dio];
    _ZNS[dio]C[12]EOS[dio];
    _ZNSt13basic_[io]streamIwSt11char_traitsIwEE4swapERS2_;
    _ZNSt13basic_[io]streamIwSt11char_traitsIwEEaSEOS2_;
    _ZNSt13basic_[io]streamIwSt11char_traitsIwEEC[12]EOS2_;
    _ZNSt14basic_iostreamIwSt11char_traitsIwEE4swapERS2_;
    _ZNSt14basic_iostreamIwSt11char_traitsIwEEaSEOS2_;
    _ZNSt14basic_iostreamIwSt11char_traitsIwEEC[12]EOS2_;
    _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EE4swapERS2_;
    _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EEaSEOS2_;
    _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EEC[12]EOS2_;
    _ZNSt13basic_fstreamI[cw]St11char_traitsI[cw]EE4swapERS2_;
    _ZNSt13basic_fstreamI[cw]St11char_traitsI[cw]EEaSEOS2_;
    _ZNSt13basic_fstreamI[cw]St11char_traitsI[cw]EEC[12]EOS2_;
    _ZNSt14basic_[io]fstreamI[cw]St11char_traitsI[cw]EE4swapERS2_;
    _ZNSt14basic_[io]fstreamI[cw]St11char_traitsI[cw]EEaSEOS2_;
    _ZNSt14basic_[io]fstreamI[cw]St11char_traitsI[cw]EEC[12]EOS2_;
    _ZNSt15basic_stringbufI[cw]St11char_traitsI[cw]ESaI[cw]EE4swapERS3_;
    _ZNSt15basic_stringbufI[cw]St11char_traitsI[cw]ESaI[cw]EEaSEOS3_;
    _ZNSt15basic_stringbufI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]EOS3_;
    _ZNSt18basic_stringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EE4swapERS3_;
    _ZNSt18basic_stringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EEaSEOS3_;
    _ZNSt18basic_stringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]EOS3_;
    _ZNSt19basic_[io]stringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EE4swapERS3_;
    _ZNSt19basic_[io]stringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EEaSEOS3_;
    _ZNSt19basic_[io]stringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]EOS3_;
    _ZN9__gnu_cxx18stdio_sync_filebufI[cw]St11char_traitsI[cw]EEaSEOS3_;
    _ZN9__gnu_cxx18stdio_sync_filebufI[cw]St11char_traitsI[cw]EEC[12]EOS3_;

    # basic_ostream<C,T>::basic_ostream(basic_iostream<C,T>&)
    _ZNSoC[12]ERSd;
    _ZNSt13basic_ostreamIwSt11char_traitsIwEEC[12]ERSt14basic_iostreamIwS1_E;

    # std::basic_ios::operator bool() const
    _ZNKSt9basic_iosI[cw]St11char_traitsI[cw]EEcvbEv;

    # C++11 version of std::ios_base::failure
    _ZNKSt8ios_base7failureB5cxx114whatEv;
    _ZNSt8ios_base7failureB5cxx11C[12]ERKSs;
    _ZNSt8ios_base7failureB5cxx11C[12]EPKcRKSt10error_code;
    _ZNSt8ios_base7failureB5cxx11C[12]ERKNSt7__cxx1112basic_string*;
    _ZNSt8ios_base7failureB5cxx11C[12]ERKSsB5cxx11RKSt10error_code;
    _ZNSt8ios_base7failureB5cxx11D[012]Ev;
    _ZTINSt8ios_base7failureB5cxx11E;
    _ZTSNSt8ios_base7failureB5cxx11E;
    _ZTVNSt8ios_base7failureB5cxx11E;
    _ZSt17iostream_categoryv;

    # std::ctype_base::blank
    _ZNSt10ctype_base5blankE;

    # std::_Sp_locker::*
    _ZNSt10_Sp_locker[CD]*;

    # std::notify_all_at_thread_exit
    _ZSt25notify_all_at_thread_exitRSt18condition_variableSt11unique_lockISt5mutexE;
#ifdef HAVE_EXCEPTION_PTR_SINCE_GCC46
    # std::__future_base::_State_baseV2::_Make_ready::_M_set()
    _ZNSt13__future_base13_State_baseV211_Make_ready6_M_setEv;
#endif

    # ABI-tagged std::basic_string
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE1[01]**;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE12_Alloc_hiderC[12]EP[cw]RKS3_;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE12_M*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE13*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE14_M_replace_aux*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE1[568-9]*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE2at*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE3end*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE4back*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE4nposE;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE4rend*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE4swap*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE5begin*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE5clear*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE5erase*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE5front*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE6append*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE6assign*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE6insertI*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE6insertE[jmy]PK[cw];
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE6insertE[jmy]PK[cw][jmy];
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE6insertE[jmy]RKS4_;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE6insertE[jmy]RKS4_[jmy][jmy];
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE6insertE[jmy][jmy][cw];
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE6insertEN9__gnu_cxx17__normal_iteratorIP[cw]*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE6insertEN9__gnu_cxx17__normal_iteratorIPK[cw]S4_EE[cw];
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE6insertEN9__gnu_cxx17__normal_iteratorIPK[cw]S4_EE[jmy][cw];
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE6rbegin*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE6resize*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE7replace*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE7reserve*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE8pop_back*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE9push_back*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE[7-9]_[MS]_*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]EOS4_*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]EPK*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]ERKS[34]_;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]ERKS4_RKS3_;
#   _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]ERKS4_[jmy]RKS3_;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]ERKS4_[jmy][jmy]*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]ESt16*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]E[jmy][cw]RKS3_;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]Ev;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]I[PN]*;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE[Daip]*;
    _ZNKSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE[1-9]*;
    _ZNKSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EEixE[jmy];

    # operator+ for ABI-tagged std::basic_string
    _ZStplI[cw]St11char_traitsI[cw]ESaI[cw]EENSt7__cxx1112basic_stringIT_T0_T1_EE*;

    # ABI-tagged stringstreams
#   _ZNSt7__cxx1115basic_stringbufI[cw]St11char_traitsI[cw]*;
    _ZNSt7__cxx1115basic_stringbufI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]E[ORS]*;
    _ZNSt7__cxx1115basic_stringbufI[cw]St11char_traitsI[cw]ESaI[cw]EED[012]Ev;
    _ZNSt7__cxx1115basic_stringbufI[cw]St11char_traitsI[cw]*__xfer_bufptrs*;
    _ZNSt7__cxx1115basic_stringbufI[cw]St11char_traitsI[cw]ESaI[cw]EE[a1346789]*;
#   _ZNSt7__cxx1118basic_stringstreamI[cw]St11char_traitsI[cw]*;
    _ZNSt7__cxx1118basic_stringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]E[ORS]*;
    _ZNSt7__cxx1118basic_stringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EED[012]Ev;
    _ZNSt7__cxx1118basic_stringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EE[a34]*;
#   _ZNSt7__cxx1119basic_istringstreamI[cw]St11char_traitsI[cw]*;
#   _ZNSt7__cxx1119basic_ostringstreamI[cw]St11char_traitsI[cw]*;
    _ZNSt7__cxx1119basic_[io]stringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]E[ORS]*;
    _ZNSt7__cxx1119basic_[io]stringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EED[012]Ev;
    _ZNSt7__cxx1119basic_[io]stringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EE[a34]*;
    _ZNKSt7__cxx1115basic_stringbuf*;
    _ZNKSt7__cxx1118basic_stringstream*;
    _ZNKSt7__cxx1119basic_istringstream*;
    _ZNKSt7__cxx1119basic_ostringstream*;
    _ZT[ISTV]NSt7__cxx1115basic_stringbuf*;
    _ZT[ISTV]NSt7__cxx1118basic_stringstream*;
    _ZT[ISTV]NSt7__cxx1119basic_istringstream*;
    _ZT[ISTV]NSt7__cxx1119basic_ostringstream*;
    _ZThn8_NSt7__cxx1118basic_stringstream*;
    _ZThn16_NSt7__cxx1118basic_stringstream*;
    _ZTv0_n12_NSt7__cxx1115basic_stringbuf*;
    _ZTv0_n12_NSt7__cxx1118basic_stringstream*;
    _ZTv0_n12_NSt7__cxx1119basic_istringstream*;
    _ZTv0_n12_NSt7__cxx1119basic_ostringstream*;
    _ZTv0_n24_NSt7__cxx1115basic_stringbuf*;
    _ZTv0_n24_NSt7__cxx1118basic_stringstream*;
    _ZTv0_n24_NSt7__cxx1119basic_istringstream*;
    _ZTv0_n24_NSt7__cxx1119basic_ostringstream*;

    # I/O functions for ABI-tagged basic_string
    _ZSt7getlineI[cw]St11char_traitsI[cw]ESaI[cw]EERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_string*;
    _ZStlsI[cw]St11char_traitsI[cw]ESaI[cw]EERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_string*;
    _ZStrsI[cw]St11char_traitsI[cw]ESaI[cw]EERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_string*;

    # fstream functions taking ABI-tagged std::string
    _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EE4openERKNSt7__cxx1112basic_string*;
    _ZNSt13basic_fstreamI[cw]St11char_traitsI[cw]EEC[12]ERKNSt7__cxx1112basic_string*;
    _ZNSt13basic_fstreamI[cw]St11char_traitsI[cw]EE4openERKNSt7__cxx1112basic_string*;
    _ZNSt14basic_[io]fstreamI[cw]St11char_traitsI[cw]EEC[12]ERKNSt7__cxx1112basic_string*;
    _ZNSt14basic_[io]fstreamI[cw]St11char_traitsI[cw]EE4openERKNSt7__cxx1112basic_string*;

    # std::locale::name() returning new std::string
    _ZNKSt6locale4nameB5cxx11Ev;

    # ABI-tagged locale facets
    _ZT[ISTV]NSt7__cxx117collateI[cw]*;
    _ZT[ISTV]NSt7__cxx1114collate_bynameI[cw]*;
    _ZT[ISTV]NSt7__cxx118messagesI[cw]*;
    _ZT[ISTV]NSt7__cxx1115messages_bynameI[cw]*;
    _ZT[ISTV]NSt7__cxx119money_getI[cw]*;
    _ZT[ISTV]NSt7__cxx119money_putI[cw]*;
    _ZT[ISTV]NSt7__cxx1110moneypunctI[cw]Lb[01]*;
    _ZT[ISTV]NSt7__cxx1117moneypunct_bynameI[cw]Lb[01]*;
    _ZT[ISTV]NSt7__cxx118numpunctI[cw]*;
    _ZT[ISTV]NSt7__cxx1115numpunct_bynameI[cw]*;
    _ZT[ISTV]NSt7__cxx118time_getI[cw]*;
    _ZT[ISTV]NSt7__cxx1115time_get_bynameI[cw]*;

    # guard vars for new facet::id globals
    _ZGVNSt7__cxx117collateI[cw]*;
    _ZGVNSt7__cxx118messagesI[cw]*;
    _ZGVNSt7__cxx1110moneypunctI[cw]Lb[01]*;
    _ZGVNSt7__cxx119money_getI[cw]*;
    _ZGVNSt7__cxx119money_putI[cw]*;
    _ZGVNSt7__cxx118numpunctI[cw]*;
    _ZGVNSt7__cxx118time_getI[cw]*;

    _ZNSt7__cxx117collateI*;
    _ZNSt7__cxx1114collate_bynameI*;
    _ZNSt7__cxx118messagesI*;
    _ZNSt7__cxx1115messages_bynameI*;
    _ZNSt7__cxx119money_getI*;
    _ZNSt7__cxx119money_putI*;
    _ZNSt7__cxx1110moneypunctI*;
    _ZNSt7__cxx1117moneypunct_bynameI*;
    _ZNSt7__cxx118numpunctI*;
    _ZNSt7__cxx1115numpunct_bynameI*;
    _ZNSt7__cxx118time_getI*;
    _ZNSt7__cxx1115time_get_bynameI*;

    _ZNKSt7__cxx117collateI*;
    _ZNKSt7__cxx118messagesI*;
    _ZNKSt7__cxx119money_getI*;
    _ZNKSt7__cxx119money_putI*;
    _ZNKSt7__cxx1110moneypunctI*;
    _ZNKSt7__cxx118numpunctI*;
    _ZNKSt7__cxx118time_getI*;

    _ZSt9has_facetINSt7__cxx117collate*;
    _ZSt9has_facetINSt7__cxx118messages*;
    _ZSt9has_facetINSt7__cxx119money_get*;
    _ZSt9has_facetINSt7__cxx119money_put*;
    _ZSt9has_facetINSt7__cxx1110moneypunct*;
    _ZSt9has_facetINSt7__cxx118numpunct*;
    _ZSt9has_facetINSt7__cxx118time_get*;
    _ZSt9use_facetINSt7__cxx117collate*;
    _ZSt9use_facetINSt7__cxx118messages*;
    _ZSt9use_facetINSt7__cxx119money_get*;
    _ZSt9use_facetINSt7__cxx119money_put*;
    _ZSt9use_facetINSt7__cxx1110moneypunct*;
    _ZSt9use_facetINSt7__cxx118numpunct*;
    _ZSt9use_facetINSt7__cxx118time_get*;

    _ZSt17__verify_groupingPKc[jmy]RKNSt7__cxx1112basic_string*;

    _ZNSt3_V214error_category*;
    _ZNKSt3_V214error_category*;
    _ZTVNSt3_V214error_categoryE;
    _ZTINSt3_V214error_categoryE;
    _ZNSt3_V215system_categoryEv;
    _ZNSt3_V216generic_categoryEv;

    # New exception constructors
    _ZNSt11logic_errorC[12]EPKc;
    _ZNSt11logic_errorC[12]ERKS_;
    _ZNSt11logic_erroraSERKS_;
    _ZNSt11logic_errorC[12]ERKNSt7__cxx1112basic_string*;
    _ZNSt11range_errorC[12]EPKc;
    _ZNSt11range_errorC[12]ERKNSt7__cxx1112basic_string*;
    _ZNSt12domain_errorC[12]EPKc;
    _ZNSt12domain_errorC[12]ERKNSt7__cxx1112basic_string*;
    _ZNSt12length_errorC[12]EPKc;
    _ZNSt12length_errorC[12]ERKNSt7__cxx1112basic_string*;
    _ZNSt12out_of_rangeC[12]EPKc;
    _ZNSt12out_of_rangeC[12]ERKNSt7__cxx1112basic_string*;
    _ZNSt13runtime_errorC[12]EPKc;
    _ZNSt13runtime_errorC[12]ERKS_;
    _ZNSt13runtime_erroraSERKS_;
    _ZNSt13runtime_errorC[12]ERKNSt7__cxx1112basic_string*;
    _ZNSt14overflow_errorC[12]EPKc;
    _ZNSt14overflow_errorC[12]ERKNSt7__cxx1112basic_string*;
    _ZNSt15underflow_errorC[12]EPKc;
    _ZNSt15underflow_errorC[12]ERKNSt7__cxx1112basic_string*;
    _ZNSt16invalid_argumentC[12]EPKc;
    _ZNSt16invalid_argumentC[12]ERKNSt7__cxx1112basic_string*;

    _ZNSt13random_device14_M_init_pretr1ERKNSt7__cxx1112basic_string*;
    _ZNSt13random_device7_M_initERKNSt7__cxx1112basic_string*;

    _ZNKSt3tr14hashINSt7__cxx1112basic_string*;

    # std::time_get::get
    _ZNKSt8time_getI[cw]St19istreambuf_iteratorI[cw]St11char_traitsI[cw]EEE3getES3_S3_RSt8ios_baseRSt12_Ios_IostateP2tmPK[cw]SC_;
    _ZNKSt8time_getI[cw]St19istreambuf_iteratorI[cw]St11char_traitsI[cw]EEE6do_getES3_S3_RSt8ios_baseRSt12_Ios_IostateP2tmcc;

    # codecvt<char16_t, char, mbstate_t>, codecvt<char32_t, char, mbstate_t>
    _ZNKSt7codecvtID[is]c*;
    _ZNSt7codecvtID[is]c*;
    _ZT[ISV]St7codecvtID[is]c*E;

    extern "C++"
    {
      std::__atomic_futex_unsigned_base*;
    };

    # codecvt_utf8 etc.
    _ZNKSt19__codecvt_utf8_base*;
    _ZNSt19__codecvt_utf8_base*;
    _ZT[ISV]St19__codecvt_utf8_base*;
    _ZNKSt20__codecvt_utf16_base*;
    _ZNSt20__codecvt_utf16_base*;
    _ZT[ISV]St20__codecvt_utf16_base*;
    _ZNKSt25__codecvt_utf8_utf16_base*;
    _ZNSt25__codecvt_utf8_utf16_base*;
    _ZT[ISV]St25__codecvt_utf8_utf16_base*;

    # new string ctors for _byname facets
    _ZNSt12ctype_bynameI[cw]EC[1-5]ERKSs[jmy];
    _ZNSt14codecvt_bynameI[cw]c11__mbstate_tEC[1-5]ERKSs[jmy];
    _ZNSt15messages_bynameI[cw]EC[1-5]ERKSs[jmy];
    _ZNSt15numpunct_bynameI[cw]EC[1-5]ERKSs[jmy];
    _ZNSt15time_get_bynameI[cw]St19istreambuf_iteratorI[cw]St11char_traitsI[cw]EEEC[1-5]ERKSs[jmy];
    _ZNSt15time_put_bynameI[cw]St19ostreambuf_iteratorI[cw]St11char_traitsI[cw]EEEC[1-5]ERKSs[jmy];
    _ZNSt17moneypunct_bynameI[cw]Lb0EEC[1-5]ERKSs[jmy];
    _ZNSt17moneypunct_bynameI[cw]Lb1EEC[1-5]ERKSs[jmy];

    _ZNSt12ctype_bynameI[cw]EC[1-5]ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE[jmy];
    _ZNSt14codecvt_bynameI[cw]c11__mbstate_tEC[1-5]ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE[jmy];
    _ZNSt15time_put_bynameI[cw]St19ostreambuf_iteratorI[cw]St11char_traitsI[cw]EEEC[1-5]ERKNSt7__cxx1112basic_stringIcS2_SaIcEEE[jmy];
    _ZNSt7__cxx1115messages_bynameI[cw]EC[1-5]ERKNS_12basic_stringIcSt11char_traitsIcESaIcEEE[jmy];
    _ZNSt7__cxx1115numpunct_bynameI[cw]EC[1-5]ERKNS_12basic_stringIcSt11char_traitsIcESaIcEEE[jmy];
    _ZNSt7__cxx1115time_get_bynameI[cw]St19istreambuf_iteratorI[cw]St11char_traitsI[cw]EEEC[1-5]ERKNS_12basic_stringIcS3_SaIcEEE[jmy];
    _ZNSt7__cxx1117moneypunct_bynameI[cw]Lb0EEC[1-5]ERKNS_12basic_stringIcSt11char_traitsIcESaIcEEE[jmy];
    _ZNSt7__cxx1117moneypunct_bynameI[cw]Lb1EEC[1-5]ERKNS_12basic_stringIcSt11char_traitsIcESaIcEEE[jmy];

} GLIBCXX_3.4.20;

GLIBCXX_3.4.22 {

    # std::uncaught_exceptions()
    _ZSt19uncaught_exceptionsv;

    # std::thread::_State::~_State()
    _ZT[ISV]NSt6thread6_StateE;
    _ZNSt6thread6_StateD[012]Ev;
    _ZNSt6thread15_M_start_threadESt10unique_ptrINS_6_StateESt14default_deleteIS1_EEPFvvE;

    # Support for the Transactional Memory TS (N4514)
    _ZGTtNSt11logic_errorC[12]EPKc;
    _ZGTtNSt11logic_errorC[12]ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE;
    _ZGTtNKSt11logic_error4whatEv;
    _ZGTtNSt11logic_errorD[012]Ev;
    _ZGTtNSt12domain_errorC[12]EPKc;
    _ZGTtNSt12domain_errorC[12]ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE;
    _ZGTtNSt12domain_errorD[012]Ev;
    _ZGTtNSt16invalid_argumentC[12]EPKc;
    _ZGTtNSt16invalid_argumentC[12]ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE;
    _ZGTtNSt16invalid_argumentD[012]Ev;
    _ZGTtNSt12length_errorC[12]EPKc;
    _ZGTtNSt12length_errorC[12]ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE;
    _ZGTtNSt12length_errorD[012]Ev;
    _ZGTtNSt12out_of_rangeC[12]EPKc;
    _ZGTtNSt12out_of_rangeC[12]ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE;
    _ZGTtNSt12out_of_rangeD[012]Ev;
    _ZGTtNSt13runtime_errorC[12]EPKc;
    _ZGTtNSt13runtime_errorC[12]ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE;
    _ZGTtNKSt13runtime_error4whatEv;
    _ZGTtNSt13runtime_errorD[012]Ev;
    _ZGTtNSt11range_errorC[12]EPKc;
    _ZGTtNSt11range_errorC[12]ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE;
    _ZGTtNSt11range_errorD[012]Ev;
    _ZGTtNSt14overflow_errorC[12]EPKc;
    _ZGTtNSt14overflow_errorC[12]ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE;
    _ZGTtNSt14overflow_errorD[012]Ev;
    _ZGTtNSt15underflow_errorC[12]EPKc;
    _ZGTtNSt15underflow_errorC[12]ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE;
    _ZGTtNSt15underflow_errorD[012]Ev;

} GLIBCXX_3.4.21;

GLIBCXX_3.4.23 {

    # basic_string<C, T, A>::_Alloc_hider::_Alloc_hider(C*, A&&)
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE12_Alloc_hiderC[12]EP[cw]OS3_;

    # basic_string<C, T, A>::basic_string(const basic_string&, size_type, const A&)
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]ERKS4_[jmy]RKS3_;
    _ZNSsC[12]ERKSs[jmy]RKSaIcE;
    # This should have been _[jmy]RKS1_ not _mRKS1_ (PR libstdc++/81092):
    _ZNSbIwSt11char_traitsIwESaIwEEC[12]ERKS2_mRKS1_;

#ifndef HAVE_EXCEPTION_PTR_SINCE_GCC46
    # std::future symbols are exported in the first version to support
    # std::exception_ptr
    _ZNSt13__future_base12_Result_baseC*;
    _ZNSt13__future_base12_Result_baseD*;
    _ZTINSt13__future_base12_Result_baseE;
    _ZTVNSt13__future_base12_Result_baseE;
    _ZNSt13__future_base13_State_baseV211_Make_ready6_M_setEv;
#endif

} GLIBCXX_3.4.22;

GLIBCXX_3.4.24 {

    # These should have been in GLIBCXX_3.4.23 (PR libstdc++/81092):
    _ZNSbIwSt11char_traitsIwESaIwEEC[12]ERKS2_[jy]RKS1_;

} GLIBCXX_3.4.23;

GLIBCXX_3.4.25 {

    # std::random_device::_M_getentropy() const
    _ZNKSt13random_device13_M_getentropyEv;

} GLIBCXX_3.4.24;

GLIBCXX_3.4.26 {

    # std::basic_string::insert(const_iterator, initializer_list)
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE6insertEN9__gnu_cxx17__normal_iteratorIPK[cw]S4_EESt16initializer_listI[cw]E;

    # std::logic_error move operations
    _ZNSt11logic_errorC[12]EOS_;
    _ZNSt11logic_erroraSEOS_;
    # std::runtime_error move operations
    _ZNSt13runtime_errorC[12]EOS_;
    _ZNSt13runtime_erroraSEOS_;

    # Default constructors for stringstreams
    _ZNSt15basic_stringbufI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]Ev;
    _ZNSt18basic_stringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]Ev;
    _ZNSt19basic_[io]stringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]Ev;
    _ZNSt7__cxx1115basic_stringbufI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]Ev;
    _ZNSt7__cxx1118basic_stringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]Ev;
    _ZNSt7__cxx1119basic_[io]stringstreamI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]Ev;

    # std::__throw_ios_failure(const char*, int);
    _ZSt19__throw_ios_failurePKci;

    # std::wistream::ignore(long long, unsigned short)
    _ZNSt13basic_istreamIwSt11char_traitsIwEE6ignoreExt;
    # std::basic_filebuf::open(const wchar_t*, openmode)
    _ZNSt13basic_filebufI[cw]St11char_traitsI[cw]EE4openEPKwSt13_Ios_Openmode;
    _ZNSt13basic_fstreamI[cw]St11char_traitsI[cw]EEC[12]EPKwSt13_Ios_Openmode;
    _ZNSt13basic_fstreamI[cw]St11char_traitsI[cw]EE4openEPKwSt13_Ios_Openmode;
    _ZNSt14basic_[io]fstreamI[cw]St11char_traitsI[cw]EEC[12]EPKwSt13_Ios_Openmode;
    _ZNSt14basic_[io]fstreamI[cw]St11char_traitsI[cw]EE4openEPKwSt13_Ios_Openmode;

    _ZN11__gnu_debug25_Safe_local_iterator_base16_M_attach_singleEPNS_19_Safe_sequence_baseEb;

    # <memory_resource> members
    _ZNSt3pmr19new_delete_resourceEv;
    _ZNSt3pmr20null_memory_resourceEv;
    _ZNSt3pmr20get_default_resourceEv;
    _ZNSt3pmr20set_default_resourceEPNS_15memory_resourceE;
    _ZNSt3pmr25monotonic_buffer_resource13_M_new_bufferE[jmy][jmy];
    _ZNSt3pmr25monotonic_buffer_resource18_M_release_buffersEv;
    _ZTINSt3pmr26synchronized_pool_resourceE;
    _ZNSt3pmr26synchronized_pool_resourceC[12]ERKNS_12pool_optionsEPNS_15memory_resourceE;
    _ZNSt3pmr26synchronized_pool_resourceD[12]Ev;
    _ZNSt3pmr26synchronized_pool_resource7releaseEv;
    _ZNSt3pmr26synchronized_pool_resource11do_allocateE[jmy][jmy];
    _ZNSt3pmr26synchronized_pool_resource13do_deallocateEPv[jmy][jmy];
    _ZTINSt3pmr28unsynchronized_pool_resourceE;
    _ZNSt3pmr28unsynchronized_pool_resourceC[12]ERKNS_12pool_optionsEPNS_15memory_resourceE;
    _ZNSt3pmr28unsynchronized_pool_resourceD[12]Ev;
    _ZNSt3pmr28unsynchronized_pool_resource7releaseEv;
    _ZNSt3pmr28unsynchronized_pool_resource11do_allocateE[jmy][jmy];
    _ZNSt3pmr28unsynchronized_pool_resource13do_deallocateEPv[jmy][jmy];

    _ZNSt14collate_bynameI[cw]EC[12]ERKSs[jmy];
    _ZNKSt8time_getI[cw]St19istreambuf_iteratorI[cw]St11char_traitsI[cw]EEE3getES3_S3_RSt8ios_baseRSt12_Ios_IostateP2tmcc;

    _ZNSsC[12]ERKSsRKSaIcE;
    _ZNSsC[12]EOSsRKSaIcE;
    _ZNSbIwSt11char_traitsIwESaIwEEC[12]ERKS2_RKS1_;
    _ZNSbIwSt11char_traitsIwESaIwEEC[12]EOS2_RKS1_;

    # basic_string<C, T, A>::operator basic_string_view<C, T>() const
    _ZNKSscvSt17basic_string_viewIcSt11char_traitsIcEEEv;
    _ZNKSbIwSt11char_traitsIwESaIwEEcvSt17basic_string_viewIwS0_EEv;
    _ZNKSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EEcvSt17basic_string_viewI[cw]S2_EEv;
    # basic_string<C, T, A>::data()
    _ZNSs4dataEv;
    _ZNSbIwSt11char_traitsIwESaIwEE4dataEv;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE4dataEv;
    # basic_string<C, T, A>::_S_to_string_view(basic_string_view<C, T>)
    _ZNSs17_S_to_string_viewESt17basic_string_viewIcSt11char_traitsIcEE;
    _ZNSbIwSt11char_traitsIwESaIwEE17_S_to_string_viewESt17basic_string_viewIwS0_E;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE17_S_to_string_viewESt17basic_string_viewI[cw]S2_E;
    # basic_string<C, T, A>::__sv_wrapper::__sv_wrapper(basic_string_view<C, T>)
    _ZNSs12__sv_wrapperC[12]ESt17basic_string_viewIcSt11char_traitsIcEE;
    _ZNSbIwSt11char_traitsIwESaIwEE12__sv_wrapperC[12]ESt17basic_string_viewIwS0_E;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EE12__sv_wrapperC[12]ESt17basic_string_viewI[cw]S2_E;
    # basic_string<C, T, A>::basic_string(__sv_wrapper, const allocator_type&)
    _ZNSsC[12]ENSs12__sv_wrapperERKSaIcE;
    _ZNSbIwSt11char_traitsIwESaIwEEC[12]ENS2_12__sv_wrapperERKS1_;
    _ZNSt7__cxx1112basic_stringI[cw]St11char_traitsI[cw]ESaI[cw]EEC[12]ENS4_12__sv_wrapperERKS3_;

    # std::filesystem symbols
    _ZNKSt10filesystem16filesystem_error4whatEv;
    _ZNKSt10filesystem16filesystem_error5path[12]Ev;
    _ZNKSt10filesystem4path1[1-9][hlpr]*Ev;
    _ZNKSt10filesystem4path17_M_find_extensionEv;
    _ZNKSt10filesystem4path1[89]lexically_*ERKS0_;
    _ZNKSt10filesystem4path5_List13_Impl_deleterclEPNS1_5_ImplE;
    _ZNKSt10filesystem4path5_List3endEv;
    _ZNKSt10filesystem4path5_List5beginEv;
    _ZNKSt10filesystem4path7compareERKS0_;
    _ZNKSt10filesystem4path7compareESt17basic_string_viewI[cw]St11char_traitsI[cw]EE;
    _ZNKSt10filesystem4path9root_*Ev;
    _ZNSt10filesystem10hash_valueERKNS_4pathE;
    _ZNSt10filesystem16filesystem_errorC[12]E*;
    _ZNSt10filesystem16filesystem_errorD[012]Ev;
    _ZNSt10filesystem4path14_M_split_cmptsEv;
    _ZNSt10filesystem4path14_S_convert_locEPKcS2_RKSt6locale;
    _ZNSt10filesystem4path1[567]re*;
    _ZNSt10filesystem4path5_ListC1ERKS1_;
    _ZNSt10filesystem4path5_ListC1Ev;
    _ZNSt10filesystem4path9_M_appendESt17basic_string_viewI[cw]St11char_traitsI[cw]EE;
    _ZNSt10filesystem4path9_M_concatESt17basic_string_viewI[cw]St11char_traitsI[cw]EE;
    _ZNSt10filesystem4pathaSERKS0_;
    _ZNSt10filesystem4pathdVERKS0_;
    _ZNSt10filesystem4pathpLERKS0_;
    _ZT[IV]NSt10filesystem16filesystem_errorE;

    _ZNKSt10filesystem7__cxx1116filesystem_error4whatEv;
    _ZNKSt10filesystem7__cxx1116filesystem_error5path[12]Ev;
    _ZNKSt10filesystem7__cxx114path1[1-9][hlpr]*Ev;
    _ZNKSt10filesystem7__cxx114path17_M_find_extensionEv;
    _ZNKSt10filesystem7__cxx114path1[89]lexically_*ERKS1_;
    _ZNKSt10filesystem7__cxx114path5_List13_Impl_deleterclEPNS2_5_ImplE;
    _ZNKSt10filesystem7__cxx114path5_List3endEv;
    _ZNKSt10filesystem7__cxx114path5_List5beginEv;
    _ZNKSt10filesystem7__cxx114path7compareERKS1_;
    _ZNKSt10filesystem7__cxx114path7compareESt17basic_string_viewI[cw]St11char_traitsI[cw]EE;
    _ZNKSt10filesystem7__cxx114path9root_*Ev;
    _ZNSt10filesystem7__cxx1110hash_valueERKNS0_4pathE;
    _ZNSt10filesystem7__cxx1116filesystem_errorC[12]E*;
    _ZNSt10filesystem7__cxx1116filesystem_errorD[012]Ev;
    _ZNSt10filesystem7__cxx114path14_M_split_cmptsEv;
    _ZNSt10filesystem7__cxx114path14_S_convert_locEPKcS3_RKSt6locale;
    _ZNSt10filesystem7__cxx114path1[567]re*;
    _ZNSt10filesystem7__cxx114path5_ListC1ERKS2_;
    _ZNSt10filesystem7__cxx114path5_ListC1Ev;
    _ZNSt10filesystem7__cxx114path9_M_appendESt17basic_string_viewI[cw]St11char_traitsI[cw]EE;
    _ZNSt10filesystem7__cxx114path9_M_concatESt17basic_string_viewI[cw]St11char_traitsI[cw]EE;
    _ZNSt10filesystem7__cxx114pathaSERKS1_;
    _ZNSt10filesystem7__cxx114pathdVERKS1_;
    _ZNSt10filesystem7__cxx114pathpLERKS1_;
    _ZT[IV]NSt10filesystem7__cxx1116filesystem_errorE;

    _ZNSt10filesystem8absolute*;
    _ZNSt10filesystem9canonical*;
    _ZNSt10filesystem4copy*;
    _ZNSt10filesystem9copy_file*;
    _ZNSt10filesystem12copy_symlink*;
    _ZNSt10filesystem18create_directories*;
    _ZNSt10filesystem16create_directory*;
    _ZNSt10filesystem24create_directory_symlink*;
    _ZNSt10filesystem16create_hard_link*;
    _ZNSt10filesystem14create_symlink*;
    _ZNSt10filesystem12current_path*;
    _ZNSt10filesystem10equivalent*;
    _ZNSt10filesystem9file_size*;
    _ZNSt10filesystem15hard_link_count*;
    _ZNSt10filesystem8is_empty*;
    _ZNSt10filesystem15last_write_time*;
    _ZNSt10filesystem11permissions*;
    _ZNSt10filesystem9proximate*;
    _ZNSt10filesystem12read_symlink*;
    _ZNSt10filesystem8relative*;
    _ZNSt10filesystem6remove*;
    _ZNSt10filesystem10remove_all*;
    _ZNSt10filesystem6rename*;
    _ZNSt10filesystem11resize_file*;
    _ZNSt10filesystem5space*;
    _ZNSt10filesystem6status*;
    _ZNSt10filesystem14symlink_status*;
    _ZNSt10filesystem19temp_directory_path*;
    _ZNSt10filesystem16weakly_canonical*;

    _ZNKSt10filesystem18directory_iteratordeEv;
    _ZNSt10filesystem18directory_iteratorC[12]ERKNS_4pathENS_17directory_optionsEPSt10error_code;
    _ZNSt10filesystem18directory_iterator9incrementERSt10error_code;
    _ZNSt10filesystem18directory_iteratorppEv;
    _ZNKSt10filesystem28recursive_directory_iterator7optionsEv;
    _ZNKSt10filesystem28recursive_directory_iterator5depthEv;
    _ZNKSt10filesystem28recursive_directory_iterator17recursion_pendingEv;
    _ZNSt10filesystem28recursive_directory_iterator25disable_recursion_pendingEv;
    _ZNKSt10filesystem28recursive_directory_iteratordeEv;
    _ZNSt10filesystem28recursive_directory_iterator3popERSt10error_code;
    _ZNSt10filesystem28recursive_directory_iterator3popEv;
    _ZNSt10filesystem28recursive_directory_iterator9incrementERSt10error_code;
    _ZNSt10filesystem28recursive_directory_iteratorC[12]ERKNS_4pathENS_17directory_optionsEPSt10error_code;
    _ZNSt10filesystem28recursive_directory_iteratorD[12]Ev;
    _ZNSt10filesystem28recursive_directory_iteratoraSEOS0_;
    _ZNSt10filesystem28recursive_directory_iteratorppEv;

    _ZNKSt10filesystem7__cxx1118directory_iteratordeEv;
    _ZNSt10filesystem7__cxx1118directory_iteratorC[12]ERKNS0_4pathENS_17directory_optionsEPSt10error_code;
    _ZNSt10filesystem7__cxx1118directory_iterator9incrementERSt10error_code;
    _ZNSt10filesystem7__cxx1118directory_iteratorppEv;
    _ZNKSt10filesystem7__cxx1128recursive_directory_iterator7optionsEv;
    _ZNKSt10filesystem7__cxx1128recursive_directory_iterator5depthEv;
    _ZNKSt10filesystem7__cxx1128recursive_directory_iterator17recursion_pendingEv;
    _ZNKSt10filesystem7__cxx1128recursive_directory_iteratordeEv;
    _ZNSt10filesystem7__cxx1128recursive_directory_iterator25disable_recursion_pendingEv;
    _ZNSt10filesystem7__cxx1128recursive_directory_iterator3popERSt10error_code;
    _ZNSt10filesystem7__cxx1128recursive_directory_iterator3popEv;
    _ZNSt10filesystem7__cxx1128recursive_directory_iterator9incrementERSt10error_code;
    _ZNSt10filesystem7__cxx1128recursive_directory_iteratorC[12]ERKNS0_4pathENS_17directory_optionsEPSt10error_code;
    _ZNSt10filesystem7__cxx1128recursive_directory_iteratorD[12]Ev;
    _ZNSt10filesystem7__cxx1128recursive_directory_iteratoraSEOS1_;
    _ZNSt10filesystem7__cxx1128recursive_directory_iteratorppEv;

    _ZNSt12__shared_ptrINSt10filesystem4_DirELN9__gnu_cxx12_Lock_policyE[012]EEC1Ev;
    _ZNSt12__shared_ptrINSt10filesystem4_DirELN9__gnu_cxx12_Lock_policyE[012]EEC1EOS4_;
    _ZNSt12__shared_ptrINSt10filesystem4_DirELN9__gnu_cxx12_Lock_policyE[012]EEaSEOS4_;
    _ZNSt12__shared_ptrINSt10filesystem28recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE[012]EEC1Ev;
    _ZNSt12__shared_ptrINSt10filesystem28recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE[012]EEC1EOS5_;

    _ZNSt12__shared_ptrINSt10filesystem7__cxx114_DirELN9__gnu_cxx12_Lock_policyE[012]EEC1Ev;
    _ZNSt12__shared_ptrINSt10filesystem7__cxx114_DirELN9__gnu_cxx12_Lock_policyE[012]EEC1EOS5_;
    _ZNSt12__shared_ptrINSt10filesystem7__cxx114_DirELN9__gnu_cxx12_Lock_policyE[012]EEaSEOS5_;
    _ZNSt12__shared_ptrINSt10filesystem7__cxx1128recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE[012]EEC1Ev;
    _ZNSt12__shared_ptrINSt10filesystem7__cxx1128recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE[012]EEC1EOS6_;

    # basic_ostream::operator<<(nullptr_t)
    _ZNSolsEDn;
    _ZNSt13basic_ostreamIwSt11char_traitsIwEElsEDn;

    # _Sp_make_shared_tag::_S_eq
    _ZNSt19_Sp_make_shared_tag5_S_eqERKSt9type_info;

    # numeric_limits<char8_t>
    _ZNSt14numeric_limitsIDuE[5-9]*;
    _ZNSt14numeric_limitsIDuE1[0-7][hirt]*;
    _ZNSt14numeric_limitsIDuE1[0-7]mi*;
    _ZNSt14numeric_limitsIDuE1[0-7]max_e*;

    # codecvt<char16_t, char8_t, mbstate_t>, codecvt<char32_t, char8_t, mbstate_t>
    _ZNKSt7codecvtID[is]Du*;
    _ZNSt7codecvtID[is]Du*;
    _ZT[ISV]St7codecvtID[is]Du*E;

} GLIBCXX_3.4.25;

GLIBCXX_3.4.27 {

    # __shared_ptr<_Dir>::__shared_ptr() (base object ctor)
    _ZNSt12__shared_ptrINSt10filesystem4_DirELN9__gnu_cxx12_Lock_policyE[012]EEC2Ev;
    _ZNSt12__shared_ptrINSt10filesystem7__cxx114_DirELN9__gnu_cxx12_Lock_policyE[012]EEC2Ev;

    # __shared_ptr<recursive_directory_iterator::_Dir_stack>::__shared_ptr() (base object ctor)
    _ZNSt12__shared_ptrINSt10filesystem28recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE[012]EEC2Ev;
    _ZNSt12__shared_ptrINSt10filesystem7__cxx1128recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE[012]EEC2Ev;

    # recursive_directory_iterator::operator=(const recursive_directory_iterator&)
    _ZNSt10filesystem28recursive_directory_iteratoraSERKS0_;
    _ZNSt10filesystem7__cxx1128recursive_directory_iteratoraSERKS1_;

} GLIBCXX_3.4.26;

GLIBCXX_3.4.28 {

    # __shared_ptr<_Dir>::__shared_ptr(__shared_ptr&&) (base object ctor)
    _ZNSt12__shared_ptrINSt10filesystem4_DirELN9__gnu_cxx12_Lock_policyE[012]EEC2EOS4_;
    _ZNSt12__shared_ptrINSt10filesystem7__cxx114_DirELN9__gnu_cxx12_Lock_policyE[012]EEC2EOS5_;

    # __shared_ptr<recursive_directory_iterator::_Dir_stack>::__shared_ptr(__shared_ptr&&) (base object ctor)
    _ZNSt12__shared_ptrINSt10filesystem28recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE[012]EEC2EOS5_;
    _ZNSt12__shared_ptrINSt10filesystem7__cxx1128recursive_directory_iterator10_Dir_stackELN9__gnu_cxx12_Lock_policyE[012]EEC2EOS6_;

    # key functions, vtables and rtti for memory resources
    _ZNSt3pmr15memory_resourceD[0125]Ev;
    _ZT[ISV]NSt3pmr15memory_resourceE;
    _ZNSt3pmr25monotonic_buffer_resourceD[0125]Ev;
    _ZT[ISV]NSt3pmr25monotonic_buffer_resourceE;

} GLIBCXX_3.4.27;

# Symbols in the support library (libsupc++) have their own tag.
CXXABI_1.3 {

  global:
    __cxa_allocate_exception;
    __cxa_bad_cast;
    __cxa_bad_typeid;
    __cxa_begin_catch;
    __cxa_begin_cleanup;
    __cxa_call_unexpected;
    __cxa_current_exception_type;
    __cxa_demangle;
    __cxa_end_catch;
    __cxa_end_cleanup;
    __cxa_free_exception;
    __cxa_get_globals;
    __cxa_get_globals_fast;
    __cxa_guard_abort;
    __cxa_guard_acquire;
    __cxa_guard_release;
    __cxa_pure_virtual;
    __cxa_rethrow;
    __cxa_throw;
    __cxa_type_match;
    __cxa_vec_ctor;
    __cxa_vec_cctor;
    __cxa_vec_cleanup;
    __cxa_vec_delete;
    __cxa_vec_delete2;
    __cxa_vec_delete3;
    __cxa_vec_dtor;
    __cxa_vec_new;
    __cxa_vec_new2;
    __cxa_vec_new3;
    __gxx_personality_v0;
    __gxx_personality_sj0;
    __gxx_personality_seh0;
    __dynamic_cast;

    # *_type_info classes, ctor and dtor
    _ZN10__cxxabiv117__array_type_info*;
    _ZN10__cxxabiv117__class_type_info*;
    _ZN10__cxxabiv116__enum_type_info*;
    _ZN10__cxxabiv120__function_type_info*;
    _ZN10__cxxabiv123__fundamental_type_info*;
    _ZN10__cxxabiv117__pbase_type_info*;
    _ZN10__cxxabiv129__pointer_to_member_type_info*;
    _ZN10__cxxabiv119__pointer_type_info*;
    _ZN10__cxxabiv120__si_class_type_info*;
    _ZN10__cxxabiv121__vmi_class_type_info*;

    # *_type_info classes, member functions
    _ZNK10__cxxabiv117__class_type_info*;
    _ZNK10__cxxabiv120__function_type_info*;
    _ZNK10__cxxabiv117__pbase_type_info*;
    _ZNK10__cxxabiv129__pointer_to_member_type_info*;
    _ZNK10__cxxabiv119__pointer_type_info*;
    _ZNK10__cxxabiv120__si_class_type_info*;
    _ZNK10__cxxabiv121__vmi_class_type_info*;

    # virtual table
    _ZTVN10__cxxabiv117__array_type_infoE;
    _ZTVN10__cxxabiv117__class_type_infoE;
    _ZTVN10__cxxabiv116__enum_type_infoE;
    _ZTVN10__cxxabiv120__function_type_infoE;
    _ZTVN10__cxxabiv123__fundamental_type_infoE;
    _ZTVN10__cxxabiv117__pbase_type_infoE;
    _ZTVN10__cxxabiv129__pointer_to_member_type_infoE;
    _ZTVN10__cxxabiv119__pointer_type_infoE;
    _ZTVN10__cxxabiv120__si_class_type_infoE;
    _ZTVN10__cxxabiv121__vmi_class_type_infoE;

    # typeinfo structure (and some names)
    _ZTI[a-fh-mp-z];
    _ZTIP[a-fh-mp-z];
    _ZTIPK[a-fh-mp-z];
    _ZTIN10__cxxabiv117__array_type_infoE;
    _ZTIN10__cxxabiv117__class_type_infoE;
    _ZTIN10__cxxabiv116__enum_type_infoE;
    _ZTIN10__cxxabiv120__function_type_infoE;
    _ZTIN10__cxxabiv123__fundamental_type_infoE;
    _ZTIN10__cxxabiv117__pbase_type_infoE;
    _ZTIN10__cxxabiv129__pointer_to_member_type_infoE;
    _ZTIN10__cxxabiv119__pointer_type_infoE;
    _ZTIN10__cxxabiv120__si_class_type_infoE;
    _ZTIN10__cxxabiv121__vmi_class_type_infoE;

    # typeinfo name
    _ZTS[a-fh-mp-z];
    _ZTSP[a-fh-mp-z];
    _ZTSPK[a-fh-mp-z];
    _ZTSN10__cxxabiv117__array_type_infoE;
    _ZTSN10__cxxabiv117__class_type_infoE;
    _ZTSN10__cxxabiv116__enum_type_infoE;
    _ZTSN10__cxxabiv120__function_type_infoE;
    _ZTSN10__cxxabiv123__fundamental_type_infoE;
    _ZTSN10__cxxabiv117__pbase_type_infoE;
    _ZTSN10__cxxabiv129__pointer_to_member_type_infoE;
    _ZTSN10__cxxabiv119__pointer_type_infoE;
    _ZTSN10__cxxabiv120__si_class_type_infoE;
    _ZTSN10__cxxabiv121__vmi_class_type_infoE;

    # __gnu_cxx::_verbose_terminate_handler()
    _ZN9__gnu_cxx27__verbose_terminate_handlerEv;

};

CXXABI_1.3.1 {

    __cxa_get_exception_ptr;

} CXXABI_1.3;

CXXABI_1.3.2 {

    # typeinfo structures
    _ZTIN10__cxxabiv115__forced_unwindE;
    _ZTIN10__cxxabiv119__foreign_exceptionE;

} CXXABI_1.3.1;

CXXABI_1.3.3 {

    # typeinfo for char16_t and char32_t
    _ZTIDs;
    _ZTIPDs;
    _ZTIPKDs;
    _ZTIDi;
    _ZTIPDi;
    _ZTIPKDi;

#ifdef HAVE_EXCEPTION_PTR_SINCE_GCC46
    # exception_ptr
    _ZNSt15__exception_ptr13exception_ptrC[12]Ev;
    _ZNSt15__exception_ptr13exception_ptrC[12]ERKS0_;
    _ZNSt15__exception_ptr13exception_ptrC[12]EMS0_FvvE;
    _ZNSt15__exception_ptr13exception_ptrD[12]Ev;
    _ZNSt15__exception_ptr13exception_ptraSERKS0_;
    _ZNKSt15__exception_ptr13exception_ptrcvMS0_FvvEEv;
    _ZNKSt15__exception_ptr13exception_ptrntEv;
    _ZNKSt15__exception_ptr13exception_ptr20__cxa_exception_typeEv;
    _ZNSt15__exception_ptr13exception_ptr4swapERS0_;
    _ZNSt15__exception_ptreqERKNS_13exception_ptrES2_;
    _ZNSt15__exception_ptrneERKNS_13exception_ptrES2_;

    _ZSt17current_exceptionv;
    _ZSt17rethrow_exceptionNSt15__exception_ptr13exception_ptrE;
#endif

} CXXABI_1.3.2;

CXXABI_1.3.4 {

    # typeinfo for decimal floating point types
    _ZTID[fde];
    _ZTIPD[fde];
    _ZTIPKD[fde];

} CXXABI_1.3.3;

CXXABI_1.3.5 {

    # typeinfo for decltype(nullptr)
    _ZTIDn;
    _ZTIPDn;
    _ZTIPKDn;

    # typeinfo for __int128 and unsigned __int128
    _ZTI[no];
    _ZTIP[no];
    _ZTIPK[no];

    # Default function.
    _ZSt11_Hash_bytesPKv*;

    # FNV hash.
    _ZSt15_Fnv_hash_bytesPKv*;

#ifdef HAVE_EXCEPTION_PTR_SINCE_GCC46
    # std::nested_exception
    _ZNSt16nested_exceptionD*;
    _ZTISt16nested_exception;
    _ZTVSt16nested_exception;
#endif

} CXXABI_1.3.4;

CXXABI_1.3.6 {

    __cxa_allocate_dependent_exception;
    __cxa_free_dependent_exception;
    __cxa_deleted_virtual;

} CXXABI_1.3.5;

CXXABI_1.3.7 {
    __cxa_thread_atexit;
} CXXABI_1.3.6;

CXXABI_1.3.8 {
    __cxa_throw_bad_array_new_length;
    _Z*St20bad_array_new_length*;

    __cxa_throw_bad_array_length;
    _Z*St16bad_array_length*;

    # Virtual table verification stub functions.
    _Z17__VLTRegisterPair*;
    _Z22__VLTRegisterPairDebug*;
    _Z16__VLTRegisterSet*;
    _Z21__VLTRegisterSetDebug*;
    _Z24__VLTVerifyVtablePointer*;
    _Z29__VLTVerifyVtablePointerDebug*;
    __VLTChangePermission;

} CXXABI_1.3.7;

CXXABI_1.3.9 {

    # typeinfo name for __int128 and unsigned __int128
    _ZTS[no];
    _ZTSP[no];
    _ZTSPK[no];

    # operator delete(void*, std::size_t)
    _ZdlPv[jmy];
    # operator delete[](void*, std::size_t)
    _ZdaPv[jmy];

} CXXABI_1.3.8;

CXXABI_1.3.10 {

    # Support for the Transactional Memory TS (N4514)
    _ZGTtNKSt9exceptionD1Ev;
    _ZGTtNKSt9exception4whatEv;
    _ZGTtNKSt13bad_exceptionD1Ev;
    _ZGTtNKSt13bad_exception4whatEv;

    _ZN9__gnu_cxx9__freeresEv;

} CXXABI_1.3.9;

CXXABI_1.3.11 {

    __cxa_init_primary_exception;
    _ZNSt15__exception_ptr13exception_ptrC1EPv;

    # C++17 aligned new/delete
    _Znw[jmy]St11align_val_t;
    _Znw[jmy]St11align_val_tRKSt9nothrow_t;
    _Zna[jmy]St11align_val_t;
    _Zna[jmy]St11align_val_tRKSt9nothrow_t;
    _ZdlPvSt11align_val_t;
    _ZdlPvSt11align_val_tRKSt9nothrow_t;
    _ZdlPv[jmy]St11align_val_t;
    _ZdaPvSt11align_val_t;
    _ZdaPvSt11align_val_tRKSt9nothrow_t;
    _ZdaPv[jmy]St11align_val_t;

#ifndef HAVE_EXCEPTION_PTR_SINCE_GCC46
    # exception_ptr
    _ZNSt15__exception_ptr13exception_ptrC1Ev;
    _ZNSt15__exception_ptr13exception_ptrC2Ev;
    _ZNSt15__exception_ptr13exception_ptrC1ERKS0_;
    _ZNSt15__exception_ptr13exception_ptrC2ERKS0_;
    _ZNSt15__exception_ptr13exception_ptrC1EMS0_FvvE;
    _ZNSt15__exception_ptr13exception_ptrC2EMS0_FvvE;
    _ZNSt15__exception_ptr13exception_ptrD1Ev;
    _ZNSt15__exception_ptr13exception_ptrD2Ev;
    _ZNSt15__exception_ptr13exception_ptraSERKS0_;
    _ZNKSt15__exception_ptr13exception_ptrcvMS0_FvvEEv;
    _ZNKSt15__exception_ptr13exception_ptrntEv;
    _ZNKSt15__exception_ptr13exception_ptr20__cxa_exception_typeEv;
    _ZNSt15__exception_ptr13exception_ptr4swapERS0_;
    _ZNSt15__exception_ptreqERKNS_13exception_ptrES2_;
    _ZNSt15__exception_ptrneERKNS_13exception_ptrES2_;

    _ZSt17current_exceptionv;
    _ZSt17rethrow_exceptionNSt15__exception_ptr13exception_ptrE;

    # std::nested_exception
    _ZNSt16nested_exceptionD*;
    _ZTISt16nested_exception;
    _ZTVSt16nested_exception;
#endif

} CXXABI_1.3.10;

CXXABI_1.3.12 {

    # typeinfo for char8_t
    _ZTIDu;
    _ZTIPDu;
    _ZTIPKDu;

} CXXABI_1.3.11;

# Symbols in the support library (libsupc++) supporting transactional memory.
CXXABI_TM_1 {

  global:
    __cxa_tm_cleanup;

};