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[libc++][hardening] Introduce a dylib function to log hardening errors. #148266

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Merged
merged 13 commits into from
Jul 15, 2025
Merged

[libc++][hardening] Introduce a dylib function to log hardening errors. #148266

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[libc++][hardening] Introduce a dylib function to log hardening errors.
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1 change: 1 addition & 0 deletions libcxx/include/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -535,6 +535,7 @@ set(files
__locale_dir/time.h
__locale_dir/wbuffer_convert.h
__locale_dir/wstring_convert.h
__log_error
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Could we move all these functions into a single header like __hardening_utils?

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If we keep the current approach where the logging function is more generic and not exclusively for hardening, then IMO it shouldn't be in __hardening_utils; although perhaps something more generic like __error_handling_utils might make sense -- WDYT?

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Sounds good to me as well. The main thing I'd like to avoid is having a bunch of tiny headers for very closely related utilities.

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FWIW, Costa and I discussed this previously and we were thinking to reorganize the top-level headers like __verbose_abort, __assert & friends in a follow-up patch where we'll have an overall view.

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Will do in an immediate follow-up patch.

__math/abs.h
__math/copysign.h
__math/error_functions.h
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5 changes: 5 additions & 0 deletions libcxx/include/__configuration/availability.h
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Expand Up @@ -304,6 +304,11 @@
#define _LIBCPP_AVAILABILITY_HAS_VERBOSE_ABORT _LIBCPP_INTRODUCED_IN_LLVM_15
#define _LIBCPP_AVAILABILITY_VERBOSE_ABORT _LIBCPP_INTRODUCED_IN_LLVM_15_ATTRIBUTE

// This controls whether the library provides a function to log errors without terminating the program (used in
// particular by the `observe` assertion semantic).
#define _LIBCPP_AVAILABILITY_HAS_LOG_ERROR _LIBCPP_INTRODUCED_IN_LLVM_21
#define _LIBCPP_AVAILABILITY_LOG_ERROR _LIBCPP_INTRODUCED_IN_LLVM_21_ATTRIBUTE

// This controls the availability of the C++17 std::pmr library,
// which is implemented in large part in the built library.
//
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50 changes: 50 additions & 0 deletions libcxx/include/__log_error
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@@ -0,0 +1,50 @@
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#ifndef _LIBCPP___LOG_ERROR
#define _LIBCPP___LOG_ERROR

#include <__config>

#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif

_LIBCPP_BEGIN_NAMESPACE_STD

enum class __log_error_reason : int {
// Where possible, it logs in a way that indicates a fatal error (which might include capturing the stack trace).
__hardening_failure
};

// This function should never be called directly from the code -- it should only be called through the
// `_LIBCPP_LOG_ERROR` macro.
_LIBCPP_AVAILABILITY_LOG_ERROR _LIBCPP_EXPORTED_FROM_ABI void
__log_error(__log_error_reason __reason, const char* __message) _NOEXCEPT;

// _LIBCPP_LOG_ERROR(message)
//
// This macro is used to log an error without terminating the program (as is the case for hardening failures if the
// `observe` assertion semantic is used, for example).

#if !defined(_LIBCPP_LOG_ERROR)

# if !_LIBCPP_AVAILABILITY_HAS_LOG_ERROR
// The decltype is there to suppress -Wunused warnings in this configuration.
void __use(const char*);
# define _LIBCPP_LOG_ERROR(__message) (decltype(::std::__use(__message))())
# else
# define _LIBCPP_LOG_ERROR(__reason, __message) ::std::__log_error(__reason, __message)
# endif

#endif // !defined(_LIBCPP_LOG_ERROR)

_LIBCPP_END_NAMESPACE_STD

#endif // _LIBCPP___LOG_ERROR
3 changes: 3 additions & 0 deletions libcxx/include/module.modulemap.in
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Expand Up @@ -2353,6 +2353,9 @@ module std [system] {
header "__std_mbstate_t.h"
export *
}
module log_error {
header "__log_error"
}
module verbose_abort {
header "__verbose_abort"
}
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5 changes: 3 additions & 2 deletions libcxx/lib/abi/arm64-apple-darwin.libcxxabi.v1.stable.exceptions.nonew.abilist
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Expand Up @@ -534,6 +534,7 @@
{'is_defined': True, 'name': '__ZNKSt3__115basic_streambufIwNS_11char_traitsIwEEE6getlocEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNKSt3__115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEE3strEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNKSt3__115error_condition7messageEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNKSt3__117bad_function_call4whatEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNKSt3__117moneypunct_bynameIcLb0EE11do_groupingEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNKSt3__117moneypunct_bynameIcLb0EE13do_neg_formatEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNKSt3__117moneypunct_bynameIcLb0EE13do_pos_formatEv', 'type': 'FUNC'}
Expand Down Expand Up @@ -944,6 +945,7 @@
{'is_defined': True, 'name': '__ZNSt3__110to_wstringEx', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__110to_wstringEy', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__111__call_onceERVmPvPFvS2_E', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__111__log_errorENS_18__log_error_reasonEPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__111__money_getIcE13__gather_infoEbRKNS_6localeERNS_10money_base7patternERcS8_RNS_12basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEESF_SF_SF_Ri', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__111__money_getIwE13__gather_infoEbRKNS_6localeERNS_10money_base7patternERwS8_RNS_12basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEERNS9_IwNSA_IwEENSC_IwEEEESJ_SJ_Ri', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__111__money_putIcE13__gather_infoEbbRKNS_6localeERNS_10money_base7patternERcS8_RNS_12basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEESF_SF_Ri', 'type': 'FUNC'}
Expand Down Expand Up @@ -1125,6 +1127,7 @@
{'is_defined': True, 'name': '__ZNSt3__112system_errorD0Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__112system_errorD1Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__112system_errorD2Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__113__hash_memoryEPKvm', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__113basic_filebufIcNS_11char_traitsIcEEE11__read_modeEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__113basic_filebufIcNS_11char_traitsIcEEE12__write_modeEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__113basic_filebufIcNS_11char_traitsIcEEE4openEPKcj', 'type': 'FUNC'}
Expand Down Expand Up @@ -1305,7 +1308,6 @@
{'is_defined': True, 'name': '__ZNSt3__113shared_futureIvED1Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__113shared_futureIvED2Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__113shared_futureIvEaSERKS1_', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__113__hash_memoryEPKvm', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__114__num_get_base10__get_baseERNS_8ios_baseE', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__114__num_get_base5__srcE', 'size': 0, 'type': 'OBJECT'}
{'is_defined': True, 'name': '__ZNSt3__114__num_put_base12__format_intEPcPKcbj', 'type': 'FUNC'}
Expand Down Expand Up @@ -1508,7 +1510,6 @@
{'is_defined': True, 'name': '__ZNSt3__117bad_function_callD0Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__117bad_function_callD1Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__117bad_function_callD2Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNKSt3__117bad_function_call4whatEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__117iostream_categoryEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__117moneypunct_bynameIcLb0EE4initEPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__117moneypunct_bynameIcLb1EE4initEPKc', 'type': 'FUNC'}
Expand Down
7 changes: 4 additions & 3 deletions libcxx/lib/abi/i686-linux-android21.libcxxabi.v1.stable.exceptions.nonew.abilist
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Expand Up @@ -170,6 +170,7 @@
{'is_defined': True, 'name': '_ZNKSt6__ndk115basic_streambufIwNS_11char_traitsIwEEE6getlocEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNKSt6__ndk115basic_stringbufIcNS_11char_traitsIcEENS_9allocatorIcEEE3strEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNKSt6__ndk115error_condition7messageEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNKSt6__ndk117bad_function_call4whatEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNKSt6__ndk117moneypunct_bynameIcLb0EE11do_groupingEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNKSt6__ndk117moneypunct_bynameIcLb0EE13do_neg_formatEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNKSt6__ndk117moneypunct_bynameIcLb0EE13do_pos_formatEv', 'type': 'FUNC'}
Expand Down Expand Up @@ -580,6 +581,7 @@
{'is_defined': True, 'name': '_ZNSt6__ndk110to_wstringEx', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk110to_wstringEy', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk111__call_onceERVmPvPFvS2_E', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk111__log_errorENS_18__log_error_reasonEPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk111__money_getIcE13__gather_infoEbRKNS_6localeERNS_10money_base7patternERcS8_RNS_12basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEESF_SF_SF_Ri', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk111__money_getIwE13__gather_infoEbRKNS_6localeERNS_10money_base7patternERwS8_RNS_12basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEERNS9_IwNSA_IwEENSC_IwEEEESJ_SJ_Ri', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk111__money_putIcE13__gather_infoEbbRKNS_6localeERNS_10money_base7patternERcS8_RNS_12basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEESF_SF_Ri', 'type': 'FUNC'}
Expand Down Expand Up @@ -761,6 +763,7 @@
{'is_defined': True, 'name': '_ZNSt6__ndk112system_errorD0Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk112system_errorD1Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk112system_errorD2Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk113__hash_memoryEPKvj', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk113basic_filebufIcNS_11char_traitsIcEEE11__read_modeEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk113basic_filebufIcNS_11char_traitsIcEEE12__write_modeEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk113basic_filebufIcNS_11char_traitsIcEEE4openEPKcj', 'type': 'FUNC'}
Expand Down Expand Up @@ -941,7 +944,6 @@
{'is_defined': True, 'name': '_ZNSt6__ndk113shared_futureIvED1Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk113shared_futureIvED2Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk113shared_futureIvEaSERKS1_', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk113__hash_memoryEPKvj', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk114__num_get_base10__get_baseERNS_8ios_baseE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk114__num_get_base5__srcE', 'size': 33, 'type': 'OBJECT'}
{'is_defined': True, 'name': '_ZNSt6__ndk114__num_put_base12__format_intEPcPKcbj', 'type': 'FUNC'}
Expand Down Expand Up @@ -1144,7 +1146,6 @@
{'is_defined': True, 'name': '_ZNSt6__ndk117bad_function_callD0Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk117bad_function_callD1Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk117bad_function_callD2Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNKSt6__ndk117bad_function_call4whatEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk117iostream_categoryEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk117moneypunct_bynameIcLb0EE4initEPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk117moneypunct_bynameIcLb1EE4initEPKc', 'type': 'FUNC'}
Expand Down Expand Up @@ -2331,4 +2332,4 @@
{'is_defined': True, 'name': '__cxa_vec_dtor', 'type': 'FUNC'}
{'is_defined': True, 'name': '__cxa_vec_new', 'type': 'FUNC'}
{'is_defined': True, 'name': '__cxa_vec_new2', 'type': 'FUNC'}
{'is_defined': True, 'name': '__cxa_vec_new3', 'type': 'FUNC'}
{'is_defined': True, 'name': '__cxa_vec_new3', 'type': 'FUNC'}
7 changes: 4 additions & 3 deletions libcxx/lib/abi/powerpc-ibm-aix.libcxxabi.v1.stable.exceptions.nonew.abilist
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Expand Up @@ -96,6 +96,7 @@
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNKSt3__115__codecvt_utf16IwLb1EE6do_outERPcPKwS5_RS5_S2_S2_S3_', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNKSt3__115__codecvt_utf16IwLb1EE9do_lengthERPcPKcS5_m', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNKSt3__115error_condition7messageEv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNKSt3__117bad_function_call4whatEv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNKSt3__118__time_get_storageIcE15__do_date_orderEv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNKSt3__118__time_get_storageIwE15__do_date_orderEv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNKSt3__119__shared_weak_count13__get_deleterERKSt9type_info', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
Expand Down Expand Up @@ -311,6 +312,7 @@
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__110to_wstringEx', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__110to_wstringEy', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__111__call_onceERVmPvPFvS2_E', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__111__log_errorENS_18__log_error_reasonEPKc', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__111regex_errorC1ENS_15regex_constants10error_typeE', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__111regex_errorC2ENS_15regex_constants10error_typeE', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__111regex_errorD0Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
Expand Down Expand Up @@ -410,6 +412,7 @@
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__112system_errorD0Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__112system_errorD1Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__112system_errorD2Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__113__hash_memoryEPKvm', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__113random_deviceC1ERKNS_12basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEE', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__113random_deviceC2ERKNS_12basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEEE', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__113random_deviceD1Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
Expand All @@ -418,7 +421,6 @@
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__113shared_futureIvED1Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__113shared_futureIvED2Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__113shared_futureIvEaSERKS1_', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__113__hash_memoryEPKvm', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__114__num_get_base10__get_baseERNS_8ios_baseE', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__114__num_get_base5__srcE', 'storage_mapping_class': 'RO', 'type': 'OBJECT'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__114__num_put_base12__format_intEPcPKcbj', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
Expand Down Expand Up @@ -503,7 +505,6 @@
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__117bad_function_callD0Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__117bad_function_callD1Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__117bad_function_callD2Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNKSt3__117bad_function_call4whatEv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__117iostream_categoryEv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__117moneypunct_bynameIcLb0EE4initEPKc', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__117moneypunct_bynameIcLb1EE4initEPKc', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
Expand Down Expand Up @@ -2018,4 +2019,4 @@
{'import_export': 'wIMP', 'is_defined': False, 'name': '_Znam', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'wIMP', 'is_defined': False, 'name': '_ZnamSt11align_val_t', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'wIMP', 'is_defined': False, 'name': '_Znwm', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'wIMP', 'is_defined': False, 'name': '_ZnwmSt11align_val_t', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'wIMP', 'is_defined': False, 'name': '_ZnwmSt11align_val_t', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
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