[libcxx-commits] [libcxx] fda3fbe - Revert "[libc++][hardening] Introduce a dylib function to log hardening errors." (#148787)
via libcxx-commits
libcxx-commits at lists.llvm.org
Tue Jul 15 03:12:45 PDT 2025
Author: Nikolas Klauser
Date: 2025-07-15T12:12:41+02:00
New Revision: fda3fbee6f4ae241f46f1328efdc1aae1e49ea92
URL: https://github.com/llvm/llvm-project/commit/fda3fbee6f4ae241f46f1328efdc1aae1e49ea92
DIFF: https://github.com/llvm/llvm-project/commit/fda3fbee6f4ae241f46f1328efdc1aae1e49ea92.diff
LOG: Revert "[libc++][hardening] Introduce a dylib function to log hardening errors." (#148787)
Reverts llvm/llvm-project#148266
I'm reverting this temporarily, since the release branch is today and
this is ABI sensitive. Let's wait until after the branch so that we have
plenty time to discuss the patch.
Added:
Modified:
libcxx/include/CMakeLists.txt
libcxx/include/__configuration/availability.h
libcxx/include/module.modulemap.in
libcxx/lib/abi/CHANGELOG.TXT
libcxx/lib/abi/arm64-apple-darwin.libcxxabi.v1.stable.exceptions.nonew.abilist
libcxx/lib/abi/i686-linux-android21.libcxxabi.v1.stable.exceptions.nonew.abilist
libcxx/lib/abi/powerpc-ibm-aix.libcxxabi.v1.stable.exceptions.nonew.abilist
libcxx/lib/abi/powerpc64-ibm-aix.libcxxabi.v1.stable.exceptions.nonew.abilist
libcxx/lib/abi/x86_64-apple-darwin.libcxxabi.v1.stable.exceptions.nonew.abilist
libcxx/lib/abi/x86_64-linux-android21.libcxxabi.v1.stable.exceptions.nonew.abilist
libcxx/lib/abi/x86_64-unknown-freebsd.libcxxabi.v1.stable.exceptions.nonew.abilist
libcxx/lib/abi/x86_64-unknown-linux-gnu.libcxxabi.v1.stable.exceptions.nonew.abilist
libcxx/lib/abi/x86_64-unknown-linux-gnu.libcxxabi.v1.stable.noexceptions.nonew.abilist
libcxx/src/CMakeLists.txt
libcxx/utils/libcxx/test/features.py
Removed:
libcxx/include/__log_hardening_failure
libcxx/src/log_hardening_failure.cpp
libcxx/test/libcxx/assertions/log_hardening_failure.pass.cpp
################################################################################
diff --git a/libcxx/include/CMakeLists.txt b/libcxx/include/CMakeLists.txt
index 85758c671e1e0..4f2a8dddad92c 100644
--- a/libcxx/include/CMakeLists.txt
+++ b/libcxx/include/CMakeLists.txt
@@ -535,7 +535,6 @@ set(files
__locale_dir/time.h
__locale_dir/wbuffer_convert.h
__locale_dir/wstring_convert.h
- __log_hardening_failure
__math/abs.h
__math/copysign.h
__math/error_functions.h
diff --git a/libcxx/include/__configuration/availability.h b/libcxx/include/__configuration/availability.h
index 2782ddb509eab..ae58e36b508b4 100644
--- a/libcxx/include/__configuration/availability.h
+++ b/libcxx/include/__configuration/availability.h
@@ -304,11 +304,6 @@
#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_HARDENING_FAILURE _LIBCPP_INTRODUCED_IN_LLVM_21
-#define _LIBCPP_AVAILABILITY_LOG_HARDENING_FAILURE _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.
//
diff --git a/libcxx/include/__log_hardening_failure b/libcxx/include/__log_hardening_failure
deleted file mode 100644
index a1c11252131c4..0000000000000
--- a/libcxx/include/__log_hardening_failure
+++ /dev/null
@@ -1,45 +0,0 @@
-// -*- 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_HARDENING_FAILURE
-#define _LIBCPP___LOG_HARDENING_FAILURE
-
-#include <__config>
-
-#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
-# pragma GCC system_header
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-// This function should never be called directly from the code -- it should only be called through the
-// `_LIBCPP_LOG_HARDENING_FAILURE` macro.
-_LIBCPP_AVAILABILITY_LOG_HARDENING_FAILURE _LIBCPP_EXPORTED_FROM_ABI void
-__log_hardening_failure(const char* __message) _NOEXCEPT;
-
-// _LIBCPP_LOG_HARDENING_FAILURE(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_HARDENING_FAILURE)
-
-# if !_LIBCPP_AVAILABILITY_HAS_LOG_HARDENING_FAILURE
-// The decltype is there to suppress -Wunused warnings in this configuration.
-void __use(const char*);
-# define _LIBCPP_LOG_HARDENING_FAILURE(__message) (decltype(::std::__use(__message))())
-# else
-# define _LIBCPP_LOG_HARDENING_FAILURE(__message) ::std::__log_hardening_failure(__message)
-# endif
-
-#endif // !defined(_LIBCPP_LOG_HARDENING_FAILURE)
-
-_LIBCPP_END_NAMESPACE_STD
-
-#endif // _LIBCPP___LOG_HARDENING_FAILURE
diff --git a/libcxx/include/module.modulemap.in b/libcxx/include/module.modulemap.in
index 53f10ab8a92a5..61ba1c381b2b3 100644
--- a/libcxx/include/module.modulemap.in
+++ b/libcxx/include/module.modulemap.in
@@ -2353,9 +2353,6 @@ module std [system] {
header "__std_mbstate_t.h"
export *
}
- module log_hardening_failure {
- header "__log_hardening_failure"
- }
module verbose_abort {
header "__verbose_abort"
}
diff --git a/libcxx/lib/abi/CHANGELOG.TXT b/libcxx/lib/abi/CHANGELOG.TXT
index c8a5cd2505394..8c1841648f821 100644
--- a/libcxx/lib/abi/CHANGELOG.TXT
+++ b/libcxx/lib/abi/CHANGELOG.TXT
@@ -36,14 +36,6 @@ Version 21.0
-------------
Symbol added: _ZNSt3__113__hash_memoryEPKvm
-* [libc++][hardening] Introduce a dylib function to log hardening errors.
-
- This patch added a function to log hardening failures to the dylib.
-
- All platforms
- -------------
- Symbol added: _ZNSt3__123__log_hardening_failureEPKc
-
------------
Version 20.0
------------
diff --git a/libcxx/lib/abi/arm64-apple-darwin.libcxxabi.v1.stable.exceptions.nonew.abilist b/libcxx/lib/abi/arm64-apple-darwin.libcxxabi.v1.stable.exceptions.nonew.abilist
index 7fbde1567e835..162757c7e37ec 100644
--- a/libcxx/lib/abi/arm64-apple-darwin.libcxxabi.v1.stable.exceptions.nonew.abilist
+++ b/libcxx/lib/abi/arm64-apple-darwin.libcxxabi.v1.stable.exceptions.nonew.abilist
@@ -1581,7 +1581,6 @@
{'is_defined': True, 'name': '__ZNSt3__123__cxx_atomic_notify_oneEPVKv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__123__libcpp_atomic_monitorEPVKNS_17__cxx_atomic_implIxNS_22__cxx_atomic_base_implIxEEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__123__libcpp_atomic_monitorEPVKv', 'type': 'FUNC'}
-{'is_defined': True, 'name': '__ZNSt3__123__log_hardening_failureEPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__125notify_all_at_thread_exitERNS_18condition_variableENS_11unique_lockINS_5mutexEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__127__from_chars_floating_pointIdEENS_19__from_chars_resultIT_EEPKcS5_NS_12chars_formatE', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__127__from_chars_floating_pointIfEENS_19__from_chars_resultIT_EEPKcS5_NS_12chars_formatE', 'type': 'FUNC'}
diff --git a/libcxx/lib/abi/i686-linux-android21.libcxxabi.v1.stable.exceptions.nonew.abilist b/libcxx/lib/abi/i686-linux-android21.libcxxabi.v1.stable.exceptions.nonew.abilist
index a911ae83e3cdb..4b6f3548ce495 100644
--- a/libcxx/lib/abi/i686-linux-android21.libcxxabi.v1.stable.exceptions.nonew.abilist
+++ b/libcxx/lib/abi/i686-linux-android21.libcxxabi.v1.stable.exceptions.nonew.abilist
@@ -1217,7 +1217,6 @@
{'is_defined': True, 'name': '_ZNSt6__ndk123__cxx_atomic_notify_oneEPVKv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk123__libcpp_atomic_monitorEPVKNS_17__cxx_atomic_implIiNS_22__cxx_atomic_base_implIiEEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk123__libcpp_atomic_monitorEPVKv', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt6__ndk123__log_hardening_failureEPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk125notify_all_at_thread_exitERNS_18condition_variableENS_11unique_lockINS_5mutexEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk127__from_chars_floating_pointIdEENS_19__from_chars_resultIT_EEPKcS5_NS_12chars_formatE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk127__from_chars_floating_pointIfEENS_19__from_chars_resultIT_EEPKcS5_NS_12chars_formatE', 'type': 'FUNC'}
diff --git a/libcxx/lib/abi/powerpc-ibm-aix.libcxxabi.v1.stable.exceptions.nonew.abilist b/libcxx/lib/abi/powerpc-ibm-aix.libcxxabi.v1.stable.exceptions.nonew.abilist
index feda9979c56ae..2b85596bd87f6 100644
--- a/libcxx/lib/abi/powerpc-ibm-aix.libcxxabi.v1.stable.exceptions.nonew.abilist
+++ b/libcxx/lib/abi/powerpc-ibm-aix.libcxxabi.v1.stable.exceptions.nonew.abilist
@@ -569,7 +569,6 @@
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__123__cxx_atomic_notify_oneEPVKv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__123__libcpp_atomic_monitorEPVKNS_17__cxx_atomic_implIiNS_22__cxx_atomic_base_implIiEEEE', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__123__libcpp_atomic_monitorEPVKv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
-{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__123__log_hardening_failureEPKc', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__125notify_all_at_thread_exitERNS_18condition_variableENS_11unique_lockINS_5mutexEEE', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__131__arrive_barrier_algorithm_baseEPNS_24__barrier_algorithm_baseEh', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__132__destroy_barrier_algorithm_baseEPNS_24__barrier_algorithm_baseE', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
diff --git a/libcxx/lib/abi/powerpc64-ibm-aix.libcxxabi.v1.stable.exceptions.nonew.abilist b/libcxx/lib/abi/powerpc64-ibm-aix.libcxxabi.v1.stable.exceptions.nonew.abilist
index 4f67a367f682a..6ebdab96ed455 100644
--- a/libcxx/lib/abi/powerpc64-ibm-aix.libcxxabi.v1.stable.exceptions.nonew.abilist
+++ b/libcxx/lib/abi/powerpc64-ibm-aix.libcxxabi.v1.stable.exceptions.nonew.abilist
@@ -569,7 +569,6 @@
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__123__cxx_atomic_notify_oneEPVKv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__123__libcpp_atomic_monitorEPVKNS_17__cxx_atomic_implIlNS_22__cxx_atomic_base_implIlEEEE', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__123__libcpp_atomic_monitorEPVKv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
-{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__123__log_hardening_failureEPKc', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__125notify_all_at_thread_exitERNS_18condition_variableENS_11unique_lockINS_5mutexEEE', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__131__arrive_barrier_algorithm_baseEPNS_24__barrier_algorithm_baseEh', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__132__destroy_barrier_algorithm_baseEPNS_24__barrier_algorithm_baseE', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
diff --git a/libcxx/lib/abi/x86_64-apple-darwin.libcxxabi.v1.stable.exceptions.nonew.abilist b/libcxx/lib/abi/x86_64-apple-darwin.libcxxabi.v1.stable.exceptions.nonew.abilist
index 22e74ef3803b3..f6f7d7fd8265a 100644
--- a/libcxx/lib/abi/x86_64-apple-darwin.libcxxabi.v1.stable.exceptions.nonew.abilist
+++ b/libcxx/lib/abi/x86_64-apple-darwin.libcxxabi.v1.stable.exceptions.nonew.abilist
@@ -1580,7 +1580,6 @@
{'is_defined': True, 'name': '__ZNSt3__123__cxx_atomic_notify_oneEPVKv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__123__libcpp_atomic_monitorEPVKNS_17__cxx_atomic_implIxNS_22__cxx_atomic_base_implIxEEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__123__libcpp_atomic_monitorEPVKv', 'type': 'FUNC'}
-{'is_defined': True, 'name': '__ZNSt3__123__log_hardening_failureEPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__125notify_all_at_thread_exitERNS_18condition_variableENS_11unique_lockINS_5mutexEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__127__from_chars_floating_pointEPKcS1_RdNS_12chars_formatE', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__127__from_chars_floating_pointEPKcS1_RfNS_12chars_formatE', 'type': 'FUNC'}
diff --git a/libcxx/lib/abi/x86_64-linux-android21.libcxxabi.v1.stable.exceptions.nonew.abilist b/libcxx/lib/abi/x86_64-linux-android21.libcxxabi.v1.stable.exceptions.nonew.abilist
index 15c419d1933d4..45f3d7c5904e8 100644
--- a/libcxx/lib/abi/x86_64-linux-android21.libcxxabi.v1.stable.exceptions.nonew.abilist
+++ b/libcxx/lib/abi/x86_64-linux-android21.libcxxabi.v1.stable.exceptions.nonew.abilist
@@ -1217,7 +1217,6 @@
{'is_defined': True, 'name': '_ZNSt6__ndk123__cxx_atomic_notify_oneEPVKv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk123__libcpp_atomic_monitorEPVKNS_17__cxx_atomic_implIiNS_22__cxx_atomic_base_implIiEEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk123__libcpp_atomic_monitorEPVKv', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt6__ndk123__log_hardening_failureEPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk125notify_all_at_thread_exitERNS_18condition_variableENS_11unique_lockINS_5mutexEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk127__from_chars_floating_pointIdEENS_19__from_chars_resultIT_EEPKcS5_NS_12chars_formatE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk127__from_chars_floating_pointIfEENS_19__from_chars_resultIT_EEPKcS5_NS_12chars_formatE', 'type': 'FUNC'}
diff --git a/libcxx/lib/abi/x86_64-unknown-freebsd.libcxxabi.v1.stable.exceptions.nonew.abilist b/libcxx/lib/abi/x86_64-unknown-freebsd.libcxxabi.v1.stable.exceptions.nonew.abilist
index fe530d7ff06ee..de8cf6deef1df 100644
--- a/libcxx/lib/abi/x86_64-unknown-freebsd.libcxxabi.v1.stable.exceptions.nonew.abilist
+++ b/libcxx/lib/abi/x86_64-unknown-freebsd.libcxxabi.v1.stable.exceptions.nonew.abilist
@@ -1231,7 +1231,6 @@
{'is_defined': True, 'name': '_ZNSt3__123__cxx_atomic_notify_oneEPVKv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__123__libcpp_atomic_monitorEPVKNS_17__cxx_atomic_implIlNS_22__cxx_atomic_base_implIlEEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__123__libcpp_atomic_monitorEPVKv', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt3__123__log_hardening_failureEPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__125notify_all_at_thread_exitERNS_18condition_variableENS_11unique_lockINS_5mutexEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__127__from_chars_floating_pointIdEENS_19__from_chars_resultIT_EEPKcS5_NS_12chars_formatE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__127__from_chars_floating_pointIfEENS_19__from_chars_resultIT_EEPKcS5_NS_12chars_formatE', 'type': 'FUNC'}
diff --git a/libcxx/lib/abi/x86_64-unknown-linux-gnu.libcxxabi.v1.stable.exceptions.nonew.abilist b/libcxx/lib/abi/x86_64-unknown-linux-gnu.libcxxabi.v1.stable.exceptions.nonew.abilist
index d1627998bbd47..8c55c4385f6f6 100644
--- a/libcxx/lib/abi/x86_64-unknown-linux-gnu.libcxxabi.v1.stable.exceptions.nonew.abilist
+++ b/libcxx/lib/abi/x86_64-unknown-linux-gnu.libcxxabi.v1.stable.exceptions.nonew.abilist
@@ -1229,7 +1229,6 @@
{'is_defined': True, 'name': '_ZNSt3__123__cxx_atomic_notify_oneEPVKv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__123__libcpp_atomic_monitorEPVKNS_17__cxx_atomic_implIiNS_22__cxx_atomic_base_implIiEEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__123__libcpp_atomic_monitorEPVKv', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt3__123__log_hardening_failureEPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__125notify_all_at_thread_exitERNS_18condition_variableENS_11unique_lockINS_5mutexEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__127__from_chars_floating_pointIdEENS_19__from_chars_resultIT_EEPKcS5_NS_12chars_formatE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__127__from_chars_floating_pointIfEENS_19__from_chars_resultIT_EEPKcS5_NS_12chars_formatE', 'type': 'FUNC'}
diff --git a/libcxx/lib/abi/x86_64-unknown-linux-gnu.libcxxabi.v1.stable.noexceptions.nonew.abilist b/libcxx/lib/abi/x86_64-unknown-linux-gnu.libcxxabi.v1.stable.noexceptions.nonew.abilist
index ba4756ac4a49b..51caa07a74330 100644
--- a/libcxx/lib/abi/x86_64-unknown-linux-gnu.libcxxabi.v1.stable.noexceptions.nonew.abilist
+++ b/libcxx/lib/abi/x86_64-unknown-linux-gnu.libcxxabi.v1.stable.noexceptions.nonew.abilist
@@ -1200,7 +1200,6 @@
{'is_defined': True, 'name': '_ZNSt3__123__cxx_atomic_notify_oneEPVKv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__123__libcpp_atomic_monitorEPVKNS_17__cxx_atomic_implIiNS_22__cxx_atomic_base_implIiEEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__123__libcpp_atomic_monitorEPVKv', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt3__123__log_hardening_failureEPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__125notify_all_at_thread_exitERNS_18condition_variableENS_11unique_lockINS_5mutexEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__127__from_chars_floating_pointIdEENS_19__from_chars_resultIT_EEPKcS5_NS_12chars_formatE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__127__from_chars_floating_pointIfEENS_19__from_chars_resultIT_EEPKcS5_NS_12chars_formatE', 'type': 'FUNC'}
diff --git a/libcxx/src/CMakeLists.txt b/libcxx/src/CMakeLists.txt
index d22580ff2f3ff..97fe57a5f24f8 100644
--- a/libcxx/src/CMakeLists.txt
+++ b/libcxx/src/CMakeLists.txt
@@ -31,7 +31,6 @@ set(LIBCXX_SOURCES
include/to_chars_floating_point.h
include/from_chars_floating_point.h
memory.cpp
- log_hardening_failure.cpp
memory_resource.cpp
new_handler.cpp
new_helpers.cpp
diff --git a/libcxx/src/log_hardening_failure.cpp b/libcxx/src/log_hardening_failure.cpp
deleted file mode 100644
index 2759fe68486ec..0000000000000
--- a/libcxx/src/log_hardening_failure.cpp
+++ /dev/null
@@ -1,50 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// 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
-//
-//===----------------------------------------------------------------------===//
-
-#include <__config>
-#include <__log_hardening_failure>
-#include <cstdio>
-
-#ifdef __BIONIC__
-# include <syslog.h>
-extern "C" void android_set_abort_message(const char* msg);
-#endif // __BIONIC__
-
-#if defined(__APPLE__) && __has_include(<os/reason_private.h>)
-# include <TargetConditionals.h>
-# include <os/reason_private.h>
-#endif
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-void __log_hardening_failure(const char* message) noexcept {
- // Always log the message to `stderr` in case the platform-specific system calls fail.
- fputs(message, stderr);
-
- // On Apple platforms, use the `os_fault_with_payload` OS function that simulates a crash.
-#if defined(__APPLE__) && __has_include(<os/reason_private.h>) && !TARGET_OS_SIMULATOR
- os_fault_with_payload(
- /*reason_namespace=*/OS_REASON_SECURITY,
- /*reason_code=*/0,
- /*payload=*/nullptr,
- /*payload_size=*/0,
- /*reason_string=*/message,
- /*reason_flags=*/0);
-
-#elif defined(__BIONIC__)
- // Show error in tombstone.
- android_set_abort_message(message);
-
- // Show error in logcat.
- openlog("libc++", 0, 0);
- syslog(LOG_CRIT, "%s", message);
- closelog();
-#endif
-}
-
-_LIBCPP_END_NAMESPACE_STD
diff --git a/libcxx/test/libcxx/assertions/log_hardening_failure.pass.cpp b/libcxx/test/libcxx/assertions/log_hardening_failure.pass.cpp
deleted file mode 100644
index d189a56d61d08..0000000000000
--- a/libcxx/test/libcxx/assertions/log_hardening_failure.pass.cpp
+++ /dev/null
@@ -1,26 +0,0 @@
-//===----------------------------------------------------------------------===//
-//
-// 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
-//
-//===----------------------------------------------------------------------===//
-
-// Basic smoke test for `__log_hardening_failure`.
-// XFAIL: availability-log_hardening_failure-missing
-
-// UNSUPPORTED: FROZEN-CXX03-HEADERS-FIXME
-
-#include <__log_hardening_failure>
-
-#include "test_macros.h"
-
-ASSERT_NOEXCEPT(std::__log_hardening_failure(""));
-
-int main(int, char**) {
- std::__log_hardening_failure("Some message");
- // It's
diff icult to properly test platform-specific logging behavior of the function; just make sure it exists and
- // can be called at runtime.
-
- return 0;
-}
diff --git a/libcxx/utils/libcxx/test/features.py b/libcxx/utils/libcxx/test/features.py
index 473e0dec413e4..0cb81546665d4 100644
--- a/libcxx/utils/libcxx/test/features.py
+++ b/libcxx/utils/libcxx/test/features.py
@@ -926,12 +926,4 @@ def check_gdb(cfg):
cfg.available_features,
),
),
- # Tests that require __log_hardening_failure support in the built library
- Feature(
- name="availability-log_hardening_failure-missing",
- when=lambda cfg: BooleanExpression.evaluate(
- "!libcpp-has-no-availability-markup && (stdlib=apple-libc++ && !_target-has-llvm-21)",
- cfg.available_features,
- ),
- ),
]
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