[libcxx-commits] [libcxx] [libc++] Remove the pointer safety functions from the dylib (PR #117390)
Nikolas Klauser via libcxx-commits
libcxx-commits at lists.llvm.org
Thu Nov 28 06:35:55 PST 2024
https://github.com/philnik777 updated https://github.com/llvm/llvm-project/pull/117390
>From b2dcb4758d1f22b844f7ca998edba4111caa6a97 Mon Sep 17 00:00:00 2001
From: Nikolas Klauser <nikolasklauser at berlin.de>
Date: Fri, 22 Nov 2024 23:26:12 +0100
Subject: [PATCH] [libc++] Remove the pointer safety functions from the dylib
---
libcxx/docs/ReleaseNotes/20.rst | 4 ++++
libcxx/lib/abi/CHANGELOG.TXT | 13 +++++++++++
...bcxxabi.v1.stable.exceptions.nonew.abilist | 4 ----
...bcxxabi.v1.stable.exceptions.nonew.abilist | 4 ----
...bcxxabi.v1.stable.exceptions.nonew.abilist | 4 ----
...bcxxabi.v1.stable.exceptions.nonew.abilist | 4 ----
...bcxxabi.v1.stable.exceptions.nonew.abilist | 4 ----
...bcxxabi.v1.stable.exceptions.nonew.abilist | 4 ----
...bcxxabi.v1.stable.exceptions.nonew.abilist | 4 ----
...bcxxabi.v1.stable.exceptions.nonew.abilist | 4 ----
...xxabi.v1.stable.noexceptions.nonew.abilist | 4 ----
libcxx/src/CMakeLists.txt | 1 -
libcxx/src/legacy_pointer_safety.cpp | 23 -------------------
13 files changed, 17 insertions(+), 60 deletions(-)
delete mode 100644 libcxx/src/legacy_pointer_safety.cpp
diff --git a/libcxx/docs/ReleaseNotes/20.rst b/libcxx/docs/ReleaseNotes/20.rst
index d520c46bae1ef1..93d45f508d5ffe 100644
--- a/libcxx/docs/ReleaseNotes/20.rst
+++ b/libcxx/docs/ReleaseNotes/20.rst
@@ -105,6 +105,10 @@ Deprecations and Removals
- The ``_LIBCPP_DISABLE_AVAILABILITY`` macro that was used to force-disable availability markup has now been removed.
Whether availability markup is used by the library is now solely controlled at configuration-time.
+- The pointer safety functions ``declare_reachable``, ``declare_no_pointers``, ``undeclare_no_pointers`` and
+ ``__undeclare_reachable`` have been removed from the library. These functions were never implemented in a non-trivial
+ way, making it very unlikely that any binary depends on them.
+
Upcoming Deprecations and Removals
----------------------------------
diff --git a/libcxx/lib/abi/CHANGELOG.TXT b/libcxx/lib/abi/CHANGELOG.TXT
index e27eb5fa046ff2..f630a5a4046dff 100644
--- a/libcxx/lib/abi/CHANGELOG.TXT
+++ b/libcxx/lib/abi/CHANGELOG.TXT
@@ -16,6 +16,19 @@ New entries should be added directly below the "Version" header.
Version 20.0
------------
+* [libc++] Remove the pointer safety functions from the dylib
+
+ The pointer safety functions were never implemented by anyone in a non-trivial
+ way, which lead us to removing them entirely from the headers when they were
+ removed in C++23. This also means that just about nobody ever called these
+ functions, especially not in production code. Because of that, we expect there
+ to be no references in the wild to the functions in the dylib.
+
+ Symbol removed: _ZNSt3__117declare_reachableEPv
+ Symbol removed: _ZNSt3__119declare_no_pointersEPcm
+ Symbol removed: _ZNSt3__121__undeclare_reachableEPv
+ Symbol removed: _ZNSt3__121undeclare_no_pointersEPcm
+
* [libcxx][libc] Implements from_chars floating-point
All platforms
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 79f999b3e02bb1..63a9872ee5558a 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
@@ -1507,7 +1507,6 @@
{'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': '__ZNSt3__117declare_reachableEPv', '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'}
@@ -1561,13 +1560,11 @@
{'is_defined': True, 'name': '__ZNSt3__119__thread_local_dataEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__119basic_istringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEaSEOS5_', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEaSEOS5_', 'type': 'FUNC'}
-{'is_defined': True, 'name': '__ZNSt3__119declare_no_pointersEPcm', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__120__get_collation_nameEPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__120__libcpp_atomic_waitEPVKNS_17__cxx_atomic_implIxNS_22__cxx_atomic_base_implIxEEEEx', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__120__libcpp_atomic_waitEPVKvx', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__120__throw_system_errorEiPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__121__throw_runtime_errorEPKc', 'type': 'FUNC'}
-{'is_defined': True, 'name': '__ZNSt3__121__undeclare_reachableEPv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__121recursive_timed_mutex4lockEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__121recursive_timed_mutex6unlockEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__121recursive_timed_mutex8try_lockEv', 'type': 'FUNC'}
@@ -1575,7 +1572,6 @@
{'is_defined': True, 'name': '__ZNSt3__121recursive_timed_mutexC2Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__121recursive_timed_mutexD1Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__121recursive_timed_mutexD2Ev', 'type': 'FUNC'}
-{'is_defined': True, 'name': '__ZNSt3__121undeclare_no_pointersEPcm', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__122__libcpp_verbose_abortEPKcz', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__123__cxx_atomic_notify_allEPVKNS_17__cxx_atomic_implIxNS_22__cxx_atomic_base_implIxEEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__123__cxx_atomic_notify_allEPVKv', '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 9efdf11940a77f..4bb93b8f3105e1 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
@@ -1143,7 +1143,6 @@
{'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': '_ZNSt6__ndk117declare_reachableEPv', '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'}
@@ -1197,13 +1196,11 @@
{'is_defined': True, 'name': '_ZNSt6__ndk119__thread_local_dataEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk119basic_istringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEaSEOS5_', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEaSEOS5_', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt6__ndk119declare_no_pointersEPcj', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk120__get_collation_nameEPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk120__libcpp_atomic_waitEPVKNS_17__cxx_atomic_implIiNS_22__cxx_atomic_base_implIiEEEEi', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk120__libcpp_atomic_waitEPVKvi', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk120__throw_system_errorEiPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk121__throw_runtime_errorEPKc', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt6__ndk121__undeclare_reachableEPv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk121recursive_timed_mutex4lockEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk121recursive_timed_mutex6unlockEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk121recursive_timed_mutex8try_lockEv', 'type': 'FUNC'}
@@ -1211,7 +1208,6 @@
{'is_defined': True, 'name': '_ZNSt6__ndk121recursive_timed_mutexC2Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk121recursive_timed_mutexD1Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk121recursive_timed_mutexD2Ev', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt6__ndk121undeclare_no_pointersEPcj', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk122__libcpp_verbose_abortEPKcz', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk123__cxx_atomic_notify_allEPVKNS_17__cxx_atomic_implIiNS_22__cxx_atomic_base_implIiEEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk123__cxx_atomic_notify_allEPVKv', '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 7fde4b905fc503..0fbe2aa69fb75c 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
@@ -502,7 +502,6 @@
{'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': '_ZNSt3__117declare_reachableEPv', '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'}
@@ -550,13 +549,11 @@
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__119__shared_weak_countD1Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__119__shared_weak_countD2Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__119__thread_local_dataEv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
-{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__119declare_no_pointersEPcm', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__120__get_collation_nameEPKc', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__120__libcpp_atomic_waitEPVKNS_17__cxx_atomic_implIiNS_22__cxx_atomic_base_implIiEEEEi', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__120__libcpp_atomic_waitEPVKvi', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__120__throw_system_errorEiPKc', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__121__throw_runtime_errorEPKc', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
-{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__121__undeclare_reachableEPv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutex4lockEv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutex6unlockEv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutex8try_lockEv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
@@ -564,7 +561,6 @@
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutexC2Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutexD1Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutexD2Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
-{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__121undeclare_no_pointersEPcm', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__123__cxx_atomic_notify_allEPVKNS_17__cxx_atomic_implIiNS_22__cxx_atomic_base_implIiEEEE', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__123__cxx_atomic_notify_allEPVKv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__123__cxx_atomic_notify_oneEPVKNS_17__cxx_atomic_implIiNS_22__cxx_atomic_base_implIiEEEE', '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 da30346257f957..bba9e49f23f3af 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
@@ -502,7 +502,6 @@
{'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': '_ZNSt3__117declare_reachableEPv', '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'}
@@ -550,13 +549,11 @@
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__119__shared_weak_countD1Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__119__shared_weak_countD2Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__119__thread_local_dataEv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
-{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__119declare_no_pointersEPcm', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__120__get_collation_nameEPKc', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__120__libcpp_atomic_waitEPVKNS_17__cxx_atomic_implIlNS_22__cxx_atomic_base_implIlEEEEl', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__120__libcpp_atomic_waitEPVKvl', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__120__throw_system_errorEiPKc', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__121__throw_runtime_errorEPKc', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
-{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__121__undeclare_reachableEPv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutex4lockEv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutex6unlockEv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutex8try_lockEv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
@@ -564,7 +561,6 @@
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutexC2Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutexD1Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutexD2Ev', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
-{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__121undeclare_no_pointersEPcm', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__123__cxx_atomic_notify_allEPVKNS_17__cxx_atomic_implIlNS_22__cxx_atomic_base_implIlEEEE', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__123__cxx_atomic_notify_allEPVKv', 'storage_mapping_class': 'DS', 'type': 'FUNC'}
{'import_export': 'EXP', 'is_defined': True, 'name': '_ZNSt3__123__cxx_atomic_notify_oneEPVKNS_17__cxx_atomic_implIlNS_22__cxx_atomic_base_implIlEEEE', '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 e1dc6e778b57c3..c0045384d6625b 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
@@ -1507,7 +1507,6 @@
{'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': '__ZNSt3__117declare_reachableEPv', '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'}
@@ -1561,13 +1560,11 @@
{'is_defined': True, 'name': '__ZNSt3__119__thread_local_dataEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__119basic_istringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEaSEOS5_', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEaSEOS5_', 'type': 'FUNC'}
-{'is_defined': True, 'name': '__ZNSt3__119declare_no_pointersEPcm', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__120__get_collation_nameEPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__120__libcpp_atomic_waitEPVKNS_17__cxx_atomic_implIxNS_22__cxx_atomic_base_implIxEEEEx', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__120__libcpp_atomic_waitEPVKvx', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__120__throw_system_errorEiPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__121__throw_runtime_errorEPKc', 'type': 'FUNC'}
-{'is_defined': True, 'name': '__ZNSt3__121__undeclare_reachableEPv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__121recursive_timed_mutex4lockEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__121recursive_timed_mutex6unlockEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__121recursive_timed_mutex8try_lockEv', 'type': 'FUNC'}
@@ -1575,7 +1572,6 @@
{'is_defined': True, 'name': '__ZNSt3__121recursive_timed_mutexC2Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__121recursive_timed_mutexD1Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__121recursive_timed_mutexD2Ev', 'type': 'FUNC'}
-{'is_defined': True, 'name': '__ZNSt3__121undeclare_no_pointersEPcm', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__122__libcpp_verbose_abortEPKcz', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__123__cxx_atomic_notify_allEPVKNS_17__cxx_atomic_implIxNS_22__cxx_atomic_base_implIxEEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '__ZNSt3__123__cxx_atomic_notify_allEPVKv', '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 ceeeffe4d97925..80fdddda7cabbb 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
@@ -1143,7 +1143,6 @@
{'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': '_ZNSt6__ndk117declare_reachableEPv', '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'}
@@ -1197,13 +1196,11 @@
{'is_defined': True, 'name': '_ZNSt6__ndk119__thread_local_dataEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk119basic_istringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEaSEOS5_', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEaSEOS5_', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt6__ndk119declare_no_pointersEPcm', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk120__get_collation_nameEPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk120__libcpp_atomic_waitEPVKNS_17__cxx_atomic_implIiNS_22__cxx_atomic_base_implIiEEEEi', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk120__libcpp_atomic_waitEPVKvi', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk120__throw_system_errorEiPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk121__throw_runtime_errorEPKc', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt6__ndk121__undeclare_reachableEPv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk121recursive_timed_mutex4lockEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk121recursive_timed_mutex6unlockEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk121recursive_timed_mutex8try_lockEv', 'type': 'FUNC'}
@@ -1211,7 +1208,6 @@
{'is_defined': True, 'name': '_ZNSt6__ndk121recursive_timed_mutexC2Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk121recursive_timed_mutexD1Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk121recursive_timed_mutexD2Ev', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt6__ndk121undeclare_no_pointersEPcm', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk122__libcpp_verbose_abortEPKcz', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk123__cxx_atomic_notify_allEPVKNS_17__cxx_atomic_implIiNS_22__cxx_atomic_base_implIiEEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt6__ndk123__cxx_atomic_notify_allEPVKv', '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 d3670d237b239f..3225e5edbcdc34 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
@@ -1158,7 +1158,6 @@
{'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': '_ZNSt3__117declare_reachableEPv', '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'}
@@ -1212,13 +1211,11 @@
{'is_defined': True, 'name': '_ZNSt3__119__thread_local_dataEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__119basic_istringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEaSEOS5_', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEaSEOS5_', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt3__119declare_no_pointersEPcm', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__120__get_collation_nameEPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__120__libcpp_atomic_waitEPVKNS_17__cxx_atomic_implIlNS_22__cxx_atomic_base_implIlEEEEl', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__120__libcpp_atomic_waitEPVKvl', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__120__throw_system_errorEiPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__121__throw_runtime_errorEPKc', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt3__121__undeclare_reachableEPv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutex4lockEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutex6unlockEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutex8try_lockEv', 'type': 'FUNC'}
@@ -1226,7 +1223,6 @@
{'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutexC2Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutexD1Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutexD2Ev', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt3__121undeclare_no_pointersEPcm', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__122__libcpp_verbose_abortEPKcz', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__123__cxx_atomic_notify_allEPVKNS_17__cxx_atomic_implIlNS_22__cxx_atomic_base_implIlEEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__123__cxx_atomic_notify_allEPVKv', '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 2c21a03d41a0d7..ec8217067f352a 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
@@ -1156,7 +1156,6 @@
{'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': '_ZNSt3__117declare_reachableEPv', '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'}
@@ -1210,13 +1209,11 @@
{'is_defined': True, 'name': '_ZNSt3__119__thread_local_dataEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__119basic_istringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEaSEOS5_', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEaSEOS5_', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt3__119declare_no_pointersEPcm', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__120__get_collation_nameEPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__120__libcpp_atomic_waitEPVKNS_17__cxx_atomic_implIiNS_22__cxx_atomic_base_implIiEEEEi', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__120__libcpp_atomic_waitEPVKvi', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__120__throw_system_errorEiPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__121__throw_runtime_errorEPKc', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt3__121__undeclare_reachableEPv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutex4lockEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutex6unlockEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutex8try_lockEv', 'type': 'FUNC'}
@@ -1224,7 +1221,6 @@
{'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutexC2Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutexD1Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutexD2Ev', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt3__121undeclare_no_pointersEPcm', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__122__libcpp_verbose_abortEPKcz', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__123__cxx_atomic_notify_allEPVKNS_17__cxx_atomic_implIiNS_22__cxx_atomic_base_implIiEEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__123__cxx_atomic_notify_allEPVKv', '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 0d4c5095090878..6e82c97963a13f 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
@@ -1127,7 +1127,6 @@
{'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': '_ZNSt3__117declare_reachableEPv', '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'}
@@ -1181,13 +1180,11 @@
{'is_defined': True, 'name': '_ZNSt3__119__thread_local_dataEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__119basic_istringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEaSEOS5_', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__119basic_ostringstreamIcNS_11char_traitsIcEENS_9allocatorIcEEEaSEOS5_', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt3__119declare_no_pointersEPcm', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__120__get_collation_nameEPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__120__libcpp_atomic_waitEPVKNS_17__cxx_atomic_implIiNS_22__cxx_atomic_base_implIiEEEEi', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__120__libcpp_atomic_waitEPVKvi', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__120__throw_system_errorEiPKc', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__121__throw_runtime_errorEPKc', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt3__121__undeclare_reachableEPv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutex4lockEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutex6unlockEv', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutex8try_lockEv', 'type': 'FUNC'}
@@ -1195,7 +1192,6 @@
{'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutexC2Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutexD1Ev', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__121recursive_timed_mutexD2Ev', 'type': 'FUNC'}
-{'is_defined': True, 'name': '_ZNSt3__121undeclare_no_pointersEPcm', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__122__libcpp_verbose_abortEPKcz', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__123__cxx_atomic_notify_allEPVKNS_17__cxx_atomic_implIiNS_22__cxx_atomic_base_implIiEEEE', 'type': 'FUNC'}
{'is_defined': True, 'name': '_ZNSt3__123__cxx_atomic_notify_allEPVKv', 'type': 'FUNC'}
diff --git a/libcxx/src/CMakeLists.txt b/libcxx/src/CMakeLists.txt
index cce8b8976f73c0..6d60fa11bf1d20 100644
--- a/libcxx/src/CMakeLists.txt
+++ b/libcxx/src/CMakeLists.txt
@@ -32,7 +32,6 @@ set(LIBCXX_SOURCES
include/ryu/ryu.h
include/to_chars_floating_point.h
include/from_chars_floating_point.h
- legacy_pointer_safety.cpp
memory.cpp
memory_resource.cpp
new_handler.cpp
diff --git a/libcxx/src/legacy_pointer_safety.cpp b/libcxx/src/legacy_pointer_safety.cpp
deleted file mode 100644
index a9361ca879bb58..00000000000000
--- a/libcxx/src/legacy_pointer_safety.cpp
+++ /dev/null
@@ -1,23 +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 <memory>
-
-// Support for garbage collection was removed in C++23 by https://wg21.link/P2186R2. Libc++ implements
-// that removal as an extension in all Standard versions. However, we still define the functions that
-// were once part of the library's ABI for backwards compatibility.
-
-_LIBCPP_BEGIN_NAMESPACE_STD
-
-_LIBCPP_EXPORTED_FROM_ABI void declare_reachable(void*) {}
-_LIBCPP_EXPORTED_FROM_ABI void declare_no_pointers(char*, size_t) {}
-_LIBCPP_EXPORTED_FROM_ABI void undeclare_no_pointers(char*, size_t) {}
-_LIBCPP_EXPORTED_FROM_ABI void* __undeclare_reachable(void* p) { return p; }
-
-_LIBCPP_END_NAMESPACE_STD
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