Release Cosmopolitan v3.6.0

This release is an atomic upgrade to GCC 14.1.0 with C23 and C++23

third_party/libcxx/__exception/exception.h

@@ -69,18 +69,21 @@ public:
 // On all other platforms, we define our own std::exception and std::bad_exception types
 // regardless of whether exceptions are turned on as a language feature.
 
-class _LIBCPP_EXCEPTION_ABI exception {
+class _LIBCPP_EXPORTED_FROM_ABI exception {
 public:
   _LIBCPP_HIDE_FROM_ABI exception() _NOEXCEPT {}
-  _LIBCPP_HIDE_FROM_ABI exception(const exception&) _NOEXCEPT = default;
+  _LIBCPP_HIDE_FROM_ABI exception(const exception&) _NOEXCEPT            = default;
+  _LIBCPP_HIDE_FROM_ABI exception& operator=(const exception&) _NOEXCEPT = default;
 
   virtual ~exception() _NOEXCEPT;
   virtual const char* what() const _NOEXCEPT;
 };
 
-class _LIBCPP_EXCEPTION_ABI bad_exception : public exception {
+class _LIBCPP_EXPORTED_FROM_ABI bad_exception : public exception {
 public:
   _LIBCPP_HIDE_FROM_ABI bad_exception() _NOEXCEPT {}
+  _LIBCPP_HIDE_FROM_ABI bad_exception(const bad_exception&) _NOEXCEPT            = default;
+  _LIBCPP_HIDE_FROM_ABI bad_exception& operator=(const bad_exception&) _NOEXCEPT = default;
   ~bad_exception() _NOEXCEPT override;
   const char* what() const _NOEXCEPT override;
 };

third_party/libcxx/__exception/exception_ptr.h

@@ -12,21 +12,63 @@
 #include <__config>
 #include <__exception/operations.h>
 #include <__memory/addressof.h>
+#include <__memory/construct_at.h>
+#include <__type_traits/decay.h>
 #include <cstddef>
 #include <cstdlib>
+#include <new>
+#include <typeinfo>
 
 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
 #  pragma GCC system_header
 #endif
 
+#ifndef _LIBCPP_ABI_MICROSOFT
+
+#  if _LIBCPP_AVAILABILITY_HAS_INIT_PRIMARY_EXCEPTION
+
+namespace __cxxabiv1 {
+
+extern "C" {
+_LIBCPP_OVERRIDABLE_FUNC_VIS void* __cxa_allocate_exception(size_t) throw();
+_LIBCPP_OVERRIDABLE_FUNC_VIS void __cxa_free_exception(void*) throw();
+
+struct __cxa_exception;
+_LIBCPP_OVERRIDABLE_FUNC_VIS __cxa_exception* __cxa_init_primary_exception(
+    void*,
+    std::type_info*,
+#    if defined(_WIN32)
+    void(__thiscall*)(void*)) throw();
+#    elif defined(__wasm__)
+    // In Wasm, a destructor returns its argument
+    void* (*)(void*)) throw();
+#    else
+    void (*)(void*)) throw();
+#    endif
+}
+
+} // namespace __cxxabiv1
+
+#  endif
+
+#endif
+
 namespace std { // purposefully not using versioning namespace
 
 #ifndef _LIBCPP_ABI_MICROSOFT
 
-class _LIBCPP_TYPE_VIS exception_ptr {
+class _LIBCPP_EXPORTED_FROM_ABI exception_ptr {
   void* __ptr_;
 
+  static exception_ptr __from_native_exception_pointer(void*) _NOEXCEPT;
+
+  template <class _Ep>
+  friend _LIBCPP_HIDE_FROM_ABI exception_ptr make_exception_ptr(_Ep) _NOEXCEPT;
+
 public:
+  // exception_ptr is basically a COW string.
+  using __trivially_relocatable = exception_ptr;
+
   _LIBCPP_HIDE_FROM_ABI exception_ptr() _NOEXCEPT : __ptr_() {}
   _LIBCPP_HIDE_FROM_ABI exception_ptr(nullptr_t) _NOEXCEPT : __ptr_() {}
 
@@ -44,18 +86,44 @@ public:
     return !(__x == __y);
   }
 
-  friend _LIBCPP_FUNC_VIS exception_ptr current_exception() _NOEXCEPT;
-  friend _LIBCPP_FUNC_VIS void rethrow_exception(exception_ptr);
+  friend _LIBCPP_EXPORTED_FROM_ABI exception_ptr current_exception() _NOEXCEPT;
+  friend _LIBCPP_EXPORTED_FROM_ABI void rethrow_exception(exception_ptr);
 };
 
 template <class _Ep>
 _LIBCPP_HIDE_FROM_ABI exception_ptr make_exception_ptr(_Ep __e) _NOEXCEPT {
 #  ifndef _LIBCPP_HAS_NO_EXCEPTIONS
+#    if _LIBCPP_AVAILABILITY_HAS_INIT_PRIMARY_EXCEPTION && __cplusplus >= 201103L
+  using _Ep2 = __decay_t<_Ep>;
+
+  void* __ex = __cxxabiv1::__cxa_allocate_exception(sizeof(_Ep));
+#      ifdef __wasm__
+  // In Wasm, a destructor returns its argument
+  (void)__cxxabiv1::__cxa_init_primary_exception(
+      __ex, const_cast<std::type_info*>(&typeid(_Ep)), [](void* __p) -> void* {
+#      else
+  (void)__cxxabiv1::__cxa_init_primary_exception(__ex, const_cast<std::type_info*>(&typeid(_Ep)), [](void* __p) {
+#      endif
+        std::__destroy_at(static_cast<_Ep2*>(__p));
+#      ifdef __wasm__
+        return __p;
+#      endif
+      });
+
+  try {
+    ::new (__ex) _Ep2(__e);
+    return exception_ptr::__from_native_exception_pointer(__ex);
+  } catch (...) {
+    __cxxabiv1::__cxa_free_exception(__ex);
+    return current_exception();
+  }
+#    else
   try {
     throw __e;
   } catch (...) {
     return current_exception();
   }
+#    endif
 #  else
   ((void)__e);
   std::abort();
@@ -64,7 +132,7 @@ _LIBCPP_HIDE_FROM_ABI exception_ptr make_exception_ptr(_Ep __e) _NOEXCEPT {
 
 #else // _LIBCPP_ABI_MICROSOFT
 
-class _LIBCPP_TYPE_VIS exception_ptr {
+class _LIBCPP_EXPORTED_FROM_ABI exception_ptr {
   _LIBCPP_DIAGNOSTIC_PUSH
   _LIBCPP_CLANG_DIAGNOSTIC_IGNORED("-Wunused-private-field")
   void* __ptr1_;
@@ -81,17 +149,17 @@ public:
   explicit operator bool() const _NOEXCEPT;
 };
 
-_LIBCPP_FUNC_VIS bool operator==(const exception_ptr& __x, const exception_ptr& __y) _NOEXCEPT;
+_LIBCPP_EXPORTED_FROM_ABI bool operator==(const exception_ptr& __x, const exception_ptr& __y) _NOEXCEPT;
 
 inline _LIBCPP_HIDE_FROM_ABI bool operator!=(const exception_ptr& __x, const exception_ptr& __y) _NOEXCEPT {
   return !(__x == __y);
 }
 
-_LIBCPP_FUNC_VIS void swap(exception_ptr&, exception_ptr&) _NOEXCEPT;
+_LIBCPP_EXPORTED_FROM_ABI void swap(exception_ptr&, exception_ptr&) _NOEXCEPT;
 
-_LIBCPP_FUNC_VIS exception_ptr __copy_exception_ptr(void* __except, const void* __ptr);
-_LIBCPP_FUNC_VIS exception_ptr current_exception() _NOEXCEPT;
-_LIBCPP_NORETURN _LIBCPP_FUNC_VIS void rethrow_exception(exception_ptr);
+_LIBCPP_EXPORTED_FROM_ABI exception_ptr __copy_exception_ptr(void* __except, const void* __ptr);
+_LIBCPP_EXPORTED_FROM_ABI exception_ptr current_exception() _NOEXCEPT;
+_LIBCPP_NORETURN _LIBCPP_EXPORTED_FROM_ABI void rethrow_exception(exception_ptr);
 
 // This is a built-in template function which automagically extracts the required
 // information.

third_party/libcxx/__exception/nested_exception.h

@@ -15,8 +15,8 @@
 #include <__type_traits/decay.h>
 #include <__type_traits/is_base_of.h>
 #include <__type_traits/is_class.h>
+#include <__type_traits/is_constructible.h>
 #include <__type_traits/is_convertible.h>
-#include <__type_traits/is_copy_constructible.h>
 #include <__type_traits/is_final.h>
 #include <__type_traits/is_polymorphic.h>
 #include <__utility/forward.h>
@@ -28,13 +28,13 @@
 
 namespace std { // purposefully not using versioning namespace
 
-class _LIBCPP_EXCEPTION_ABI nested_exception {
+class _LIBCPP_EXPORTED_FROM_ABI nested_exception {
   exception_ptr __ptr_;
 
 public:
   nested_exception() _NOEXCEPT;
-  //     nested_exception(const nested_exception&) noexcept = default;
-  //     nested_exception& operator=(const nested_exception&) noexcept = default;
+  _LIBCPP_HIDE_FROM_ABI nested_exception(const nested_exception&) _NOEXCEPT            = default;
+  _LIBCPP_HIDE_FROM_ABI nested_exception& operator=(const nested_exception&) _NOEXCEPT = default;
   virtual ~nested_exception() _NOEXCEPT;
 
   // access functions
@@ -53,14 +53,14 @@ struct __throw_with_nested;
 
 template <class _Tp, class _Up>
 struct __throw_with_nested<_Tp, _Up, true> {
-  _LIBCPP_NORETURN static inline _LIBCPP_INLINE_VISIBILITY void __do_throw(_Tp&& __t) {
+  _LIBCPP_NORETURN static inline _LIBCPP_HIDE_FROM_ABI void __do_throw(_Tp&& __t) {
     throw __nested<_Up>(std::forward<_Tp>(__t));
   }
 };
 
 template <class _Tp, class _Up>
 struct __throw_with_nested<_Tp, _Up, false> {
-  _LIBCPP_NORETURN static inline _LIBCPP_INLINE_VISIBILITY void __do_throw(_Tp&& __t) { throw std::forward<_Tp>(__t); }
+  _LIBCPP_NORETURN static inline _LIBCPP_HIDE_FROM_ABI void __do_throw(_Tp&& __t) { throw std::forward<_Tp>(__t); }
 };
 #endif
 
@@ -84,17 +84,15 @@ struct __can_dynamic_cast
     : _BoolConstant< is_polymorphic<_From>::value &&
                      (!is_base_of<_To, _From>::value || is_convertible<const _From*, const _To*>::value)> {};
 
-template <class _Ep>
-inline _LIBCPP_HIDE_FROM_ABI void
-rethrow_if_nested(const _Ep& __e, __enable_if_t< __can_dynamic_cast<_Ep, nested_exception>::value>* = 0) {
+template <class _Ep, __enable_if_t< __can_dynamic_cast<_Ep, nested_exception>::value, int> = 0>
+inline _LIBCPP_HIDE_FROM_ABI void rethrow_if_nested(const _Ep& __e) {
   const nested_exception* __nep = dynamic_cast<const nested_exception*>(std::addressof(__e));
   if (__nep)
     __nep->rethrow_nested();
 }
 
-template <class _Ep>
-inline _LIBCPP_HIDE_FROM_ABI void
-rethrow_if_nested(const _Ep&, __enable_if_t<!__can_dynamic_cast<_Ep, nested_exception>::value>* = 0) {}
+template <class _Ep, __enable_if_t<!__can_dynamic_cast<_Ep, nested_exception>::value, int> = 0>
+inline _LIBCPP_HIDE_FROM_ABI void rethrow_if_nested(const _Ep&) {}
 
 } // namespace std
 

third_party/libcxx/__exception/operations.h

@@ -9,7 +9,6 @@
 #ifndef _LIBCPP___EXCEPTION_OPERATIONS_H
 #define _LIBCPP___EXCEPTION_OPERATIONS_H
 
-#include <__availability>
 #include <__config>
 #include <cstddef>
 
@@ -21,22 +20,22 @@ namespace std { // purposefully not using versioning namespace
 #if _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_UNEXPECTED_FUNCTIONS) ||                             \
     defined(_LIBCPP_BUILDING_LIBRARY)
 using unexpected_handler = void (*)();
-_LIBCPP_FUNC_VIS unexpected_handler set_unexpected(unexpected_handler) _NOEXCEPT;
-_LIBCPP_FUNC_VIS unexpected_handler get_unexpected() _NOEXCEPT;
-_LIBCPP_NORETURN _LIBCPP_FUNC_VIS void unexpected();
+_LIBCPP_EXPORTED_FROM_ABI unexpected_handler set_unexpected(unexpected_handler) _NOEXCEPT;
+_LIBCPP_EXPORTED_FROM_ABI unexpected_handler get_unexpected() _NOEXCEPT;
+_LIBCPP_NORETURN _LIBCPP_EXPORTED_FROM_ABI void unexpected();
 #endif
 
 using terminate_handler = void (*)();
-_LIBCPP_FUNC_VIS terminate_handler set_terminate(terminate_handler) _NOEXCEPT;
-_LIBCPP_FUNC_VIS terminate_handler get_terminate() _NOEXCEPT;
+_LIBCPP_EXPORTED_FROM_ABI terminate_handler set_terminate(terminate_handler) _NOEXCEPT;
+_LIBCPP_EXPORTED_FROM_ABI terminate_handler get_terminate() _NOEXCEPT;
 
-_LIBCPP_FUNC_VIS bool uncaught_exception() _NOEXCEPT;
-_LIBCPP_FUNC_VIS _LIBCPP_AVAILABILITY_UNCAUGHT_EXCEPTIONS int uncaught_exceptions() _NOEXCEPT;
+_LIBCPP_EXPORTED_FROM_ABI bool uncaught_exception() _NOEXCEPT;
+_LIBCPP_EXPORTED_FROM_ABI int uncaught_exceptions() _NOEXCEPT;
 
-class _LIBCPP_TYPE_VIS exception_ptr;
+class _LIBCPP_EXPORTED_FROM_ABI exception_ptr;
 
-_LIBCPP_FUNC_VIS exception_ptr current_exception() _NOEXCEPT;
-_LIBCPP_NORETURN _LIBCPP_FUNC_VIS void rethrow_exception(exception_ptr);
+_LIBCPP_EXPORTED_FROM_ABI exception_ptr current_exception() _NOEXCEPT;
+_LIBCPP_NORETURN _LIBCPP_EXPORTED_FROM_ABI void rethrow_exception(exception_ptr);
 } // namespace std
 
 #endif // _LIBCPP___EXCEPTION_OPERATIONS_H

third_party/libcxx/__exception/terminate.h

@@ -16,7 +16,7 @@
 #endif
 
 namespace std { // purposefully not using versioning namespace
-_LIBCPP_NORETURN _LIBCPP_FUNC_VIS void terminate() _NOEXCEPT;
+_LIBCPP_NORETURN _LIBCPP_EXPORTED_FROM_ABI void terminate() _NOEXCEPT;
 } // namespace std
 
 #endif // _LIBCPP___EXCEPTION_TERMINATE_H