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Revert "Split exception.cpp and new.cpp implementation into different files for different runtimes."

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The compiler-rt CMake configuration needs some tweaking before this can land.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@294727 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Fiselier
2017-02-10 07:43:08 +00:00
parent e1b6382ee3
commit d3298ad74e
17 changed files with 511 additions and 727 deletions
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3
CMakeLists.txt
View File

@@ -125,9 +125,6 @@ if (LIBCXX_CXX_ABI STREQUAL "default")
if (LIBCXX_TARGETING_MSVC) if (LIBCXX_TARGETING_MSVC)
# FIXME: Figure out how to configure the ABI library on Windows. # FIXME: Figure out how to configure the ABI library on Windows.
set(LIBCXX_CXX_ABI_LIBNAME "vcruntime") set(LIBCXX_CXX_ABI_LIBNAME "vcruntime")
elseif(APPLE)
set(LIBCXX_CXX_ABI_LIBNAME "libcxxabi")
set(LIBCXX_CXX_ABI_SYSTEM 1)
else() else()
set(LIBCXX_CXX_ABI_LIBNAME "default") set(LIBCXX_CXX_ABI_LIBNAME "default")
endif() endif()

8
cmake/Modules/HandleLibCXXABI.cmake
View File

@@ -103,11 +103,9 @@ elseif ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libcxxabi")
# Assume c++abi is installed in the system, rely on -lc++abi link flag. # Assume c++abi is installed in the system, rely on -lc++abi link flag.
set(CXXABI_LIBNAME "c++abi") set(CXXABI_LIBNAME "c++abi")
endif() endif()
set(HEADERS "cxxabi.h;__cxxabi_config.h") setup_abi_lib("-DLIBCXX_BUILDING_LIBCXXABI"
if (LIBCXX_CXX_ABI_SYSTEM) ${CXXABI_LIBNAME} "cxxabi.h;__cxxabi_config.h" ""
set(HEADERS "") )
endif()
setup_abi_lib("-DLIBCXX_BUILDING_LIBCXXABI" ${CXXABI_LIBNAME} "${HEADERS}" "")
elseif ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libcxxrt") elseif ("${LIBCXX_CXX_ABI_LIBNAME}" STREQUAL "libcxxrt")
setup_abi_lib("-DLIBCXXRT" setup_abi_lib("-DLIBCXXRT"
"cxxrt" "cxxabi.h;unwind.h;unwind-arm.h;unwind-itanium.h" "" "cxxrt" "cxxabi.h;unwind.h;unwind-arm.h;unwind-itanium.h" ""

6
include/exception
View File

@@ -82,10 +82,6 @@ template <class E> void rethrow_if_nested(const E& e);
#include <cstdlib> #include <cstdlib>
#include <type_traits> #include <type_traits>
#if defined(_LIBCPP_ABI_MICROSOFT)
#include <vcruntime_exception.h>
#endif
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header #pragma GCC system_header
#endif #endif
@@ -93,7 +89,6 @@ template <class E> void rethrow_if_nested(const E& e);
namespace std // purposefully not using versioning namespace namespace std // purposefully not using versioning namespace
{ {
#if !defined(_LIBCPP_ABI_MICROSOFT)
class _LIBCPP_EXCEPTION_ABI exception class _LIBCPP_EXCEPTION_ABI exception
{ {
public: public:
@@ -110,7 +105,6 @@ public:
virtual ~bad_exception() _NOEXCEPT; virtual ~bad_exception() _NOEXCEPT;
virtual const char* what() const _NOEXCEPT; virtual const char* what() const _NOEXCEPT;
}; };
#endif // !_LIBCPP_ABI_MICROSOFT
typedef void (*unexpected_handler)(); typedef void (*unexpected_handler)();
_LIBCPP_FUNC_VIS unexpected_handler set_unexpected(unexpected_handler) _NOEXCEPT; _LIBCPP_FUNC_VIS unexpected_handler set_unexpected(unexpected_handler) _NOEXCEPT;

24
include/new
View File

@@ -92,10 +92,6 @@ void operator delete[](void* ptr, void*) noexcept;
#include <cstdlib> #include <cstdlib>
#endif #endif
#if defined(_LIBCPP_ABI_MICROSOFT)
#include <new.h>
#endif
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
#pragma GCC system_header #pragma GCC system_header
#endif #endif
@@ -114,10 +110,6 @@ void operator delete[](void* ptr, void*) noexcept;
namespace std // purposefully not using versioning namespace namespace std // purposefully not using versioning namespace
{ {
#if !defined(_LIBCPP_ABI_MICROSOFT)
struct _LIBCPP_TYPE_VIS nothrow_t {};
extern _LIBCPP_FUNC_VIS const nothrow_t nothrow;
class _LIBCPP_EXCEPTION_ABI bad_alloc class _LIBCPP_EXCEPTION_ABI bad_alloc
: public exception : public exception
{ {
@@ -136,12 +128,6 @@ public:
virtual const char* what() const _NOEXCEPT; virtual const char* what() const _NOEXCEPT;
}; };
typedef void (*new_handler)();
_LIBCPP_FUNC_VIS new_handler set_new_handler(new_handler) _NOEXCEPT;
_LIBCPP_FUNC_VIS new_handler get_new_handler() _NOEXCEPT;
#endif // !_LIBCPP_ABI_MICROSOFT
_LIBCPP_NORETURN _LIBCPP_FUNC_VIS void __throw_bad_alloc(); // not in C++ spec _LIBCPP_NORETURN _LIBCPP_FUNC_VIS void __throw_bad_alloc(); // not in C++ spec
#if defined(_LIBCPP_BUILDING_NEW) || (_LIBCPP_STD_VER > 11) #if defined(_LIBCPP_BUILDING_NEW) || (_LIBCPP_STD_VER > 11)
@@ -167,6 +153,12 @@ enum align_val_t { __zero = 0, __max = (size_t)-1 };
#endif #endif
#endif #endif
struct _LIBCPP_TYPE_VIS nothrow_t {};
extern _LIBCPP_FUNC_VIS const nothrow_t nothrow;
typedef void (*new_handler)();
_LIBCPP_FUNC_VIS new_handler set_new_handler(new_handler) _NOEXCEPT;
_LIBCPP_FUNC_VIS new_handler get_new_handler() _NOEXCEPT;
} // std } // std
#if defined(_LIBCPP_CXX03_LANG) #if defined(_LIBCPP_CXX03_LANG)
@@ -175,8 +167,6 @@ enum align_val_t { __zero = 0, __max = (size_t)-1 };
#define _THROW_BAD_ALLOC #define _THROW_BAD_ALLOC
#endif #endif
#if !defined(_LIBCPP_ABI_MICROSOFT)
_LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz) _THROW_BAD_ALLOC; _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz) _THROW_BAD_ALLOC;
_LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz, const std::nothrow_t&) _NOEXCEPT _NOALIAS; _LIBCPP_OVERRIDABLE_FUNC_VIS void* operator new(std::size_t __sz, const std::nothrow_t&) _NOEXCEPT _NOALIAS;
_LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete(void* __p) _NOEXCEPT; _LIBCPP_OVERRIDABLE_FUNC_VIS void operator delete(void* __p) _NOEXCEPT;
@@ -216,8 +206,6 @@ inline _LIBCPP_INLINE_VISIBILITY void* operator new[](std::size_t, void* __p) _N
inline _LIBCPP_INLINE_VISIBILITY void operator delete (void*, void*) _NOEXCEPT {} inline _LIBCPP_INLINE_VISIBILITY void operator delete (void*, void*) _NOEXCEPT {}
inline _LIBCPP_INLINE_VISIBILITY void operator delete[](void*, void*) _NOEXCEPT {} inline _LIBCPP_INLINE_VISIBILITY void operator delete[](void*, void*) _NOEXCEPT {}
#endif // !_LIBCPP_ABI_MICROSOFT
_LIBCPP_BEGIN_NAMESPACE_STD _LIBCPP_BEGIN_NAMESPACE_STD
inline _LIBCPP_INLINE_VISIBILITY void *__allocate(size_t __size) { inline _LIBCPP_INLINE_VISIBILITY void *__allocate(size_t __size) {

7
include/typeinfo
View File

@@ -69,9 +69,7 @@ public:
#pragma GCC system_header #pragma GCC system_header
#endif #endif
#if defined(_LIBCPP_ABI_MICROSOFT) #if defined(_LIBCPP_NONUNIQUE_RTTI_BIT)
#include <vcruntime_typeinfo.h>
#elif defined(_LIBCPP_NONUNIQUE_RTTI_BIT)
#define _LIBCPP_HAS_NONUNIQUE_TYPEINFO #define _LIBCPP_HAS_NONUNIQUE_TYPEINFO
#else #else
#define _LIBCPP_HAS_UNIQUE_TYPEINFO #define _LIBCPP_HAS_UNIQUE_TYPEINFO
@@ -80,7 +78,6 @@ public:
namespace std // purposefully not using versioning namespace namespace std // purposefully not using versioning namespace
{ {
#if !defined(_LIBCPP_ABI_MICROSOFT)
class _LIBCPP_EXCEPTION_ABI type_info class _LIBCPP_EXCEPTION_ABI type_info
{ {
type_info& operator=(const type_info&); type_info& operator=(const type_info&);
@@ -190,8 +187,6 @@ public:
virtual const char* what() const _NOEXCEPT; virtual const char* what() const _NOEXCEPT;
}; };
#endif // !_LIBCPP_ABI_MICROSOFT
} // std } // std
_LIBCPP_BEGIN_NAMESPACE_STD _LIBCPP_BEGIN_NAMESPACE_STD

332
src/exception.cpp
View File

@@ -6,30 +6,328 @@
// Source Licenses. See LICENSE.TXT for details. // Source Licenses. See LICENSE.TXT for details.
// //
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
#include <stdlib.h>
#include <stdio.h>
#include "exception" #include "exception"
#include "new" #include "new"
#if defined(LIBCXXRT) || defined(LIBCXX_BUILDING_LIBCXXABI) || \ #if defined(_LIBCPP_ABI_MICROSOFT)
(defined(__APPLE__) && !defined(_LIBCPP_BUILDING_HAS_NO_ABI_LIBRARY)) #include <eh.h>
#include <corecrt_terminate.h>
#elif defined(__APPLE__) && !defined(LIBCXXRT) && \
!defined(_LIBCPP_BUILDING_HAS_NO_ABI_LIBRARY)
#include <cxxabi.h> #include <cxxabi.h>
using namespace __cxxabiv1; using namespace __cxxabiv1;
#define HAVE_DEPENDENT_EH_ABI 1 #define HAVE_DEPENDENT_EH_ABI 1
#ifndef _LIBCPPABI_VERSION
using namespace __cxxabiapple;
// On Darwin, there are two STL shared libraries and a lower level ABI
// shared library. The globals holding the current terminate handler and
// current unexpected handler are in the ABI library.
#define __terminate_handler __cxxabiapple::__cxa_terminate_handler
#define __unexpected_handler __cxxabiapple::__cxa_unexpected_handler
#endif // _LIBCPPABI_VERSION
#elif defined(LIBCXXRT) || defined(LIBCXX_BUILDING_LIBCXXABI)
#include <cxxabi.h>
using namespace __cxxabiv1;
#if defined(LIBCXXRT) || defined(_LIBCPPABI_VERSION)
#define HAVE_DEPENDENT_EH_ABI 1
#endif
#elif !defined(__GLIBCXX__) // defined(LIBCXX_BUILDING_LIBCXXABI)
_LIBCPP_SAFE_STATIC static std::terminate_handler __terminate_handler;
_LIBCPP_SAFE_STATIC static std::unexpected_handler __unexpected_handler;
#endif // defined(LIBCXX_BUILDING_LIBCXXABI)
namespace std
{
#if !defined(LIBCXXRT) && !defined(_LIBCPPABI_VERSION) && !defined(__GLIBCXX__)
// libcxxrt provides implementations of these functions itself.
unexpected_handler
set_unexpected(unexpected_handler func) _NOEXCEPT
{
#if defined(_LIBCPP_ABI_MICROSOFT)
return ::set_unexpected(func);
#else
return __sync_lock_test_and_set(&__unexpected_handler, func);
#endif
}
unexpected_handler
get_unexpected() _NOEXCEPT
{
#if defined(_LIBCPP_ABI_MICROSOFT)
return ::_get_unexpected();
#else
return __sync_fetch_and_add(&__unexpected_handler, (unexpected_handler)0);
#endif
}
_LIBCPP_NORETURN
void
unexpected()
{
(*get_unexpected())();
// unexpected handler should not return
terminate();
}
terminate_handler
set_terminate(terminate_handler func) _NOEXCEPT
{
#if defined(_LIBCPP_ABI_MICROSOFT)
return ::set_terminate(func);
#else
return __sync_lock_test_and_set(&__terminate_handler, func);
#endif
}
terminate_handler
get_terminate() _NOEXCEPT
{
#if defined(_LIBCPP_ABI_MICROSOFT)
return ::_get_terminate();
#else
return __sync_fetch_and_add(&__terminate_handler, (terminate_handler)0);
#endif
}
#ifndef __EMSCRIPTEN__ // We provide this in JS
_LIBCPP_NORETURN
void
terminate() _NOEXCEPT
{
#ifndef _LIBCPP_NO_EXCEPTIONS
try
{
#endif // _LIBCPP_NO_EXCEPTIONS
(*get_terminate())();
// handler should not return
fprintf(stderr, "terminate_handler unexpectedly returned\n");
::abort();
#ifndef _LIBCPP_NO_EXCEPTIONS
}
catch (...)
{
// handler should not throw exception
fprintf(stderr, "terminate_handler unexpectedly threw an exception\n");
::abort();
}
#endif // _LIBCPP_NO_EXCEPTIONS
}
#endif // !__EMSCRIPTEN__
#endif // !defined(LIBCXXRT) && !defined(_LIBCPPABI_VERSION)
#if !defined(LIBCXXRT) && !defined(__GLIBCXX__) && !defined(__EMSCRIPTEN__)
bool uncaught_exception() _NOEXCEPT { return uncaught_exceptions() > 0; }
int uncaught_exceptions() _NOEXCEPT
{
#if !defined(_LIBCPP_BUILDING_HAS_NO_ABI_LIBRARY) && \
(defined(__APPLE__) || defined(_LIBCPPABI_VERSION))
// on Darwin, there is a helper function so __cxa_get_globals is private
# if _LIBCPPABI_VERSION > 1101
return __cxa_uncaught_exceptions();
# else
return __cxa_uncaught_exception() ? 1 : 0;
# endif
#elif defined(_LIBCPP_ABI_MICROSOFT)
return __uncaught_exceptions();
#else
# if defined(_LIBCPP_MSVC)
_LIBCPP_WARNING("uncaught_exceptions not yet implemented")
# else
# warning uncaught_exception not yet implemented
# endif
fprintf(stderr, "uncaught_exceptions not yet implemented\n");
::abort();
#endif // __APPLE__
}
#ifndef _LIBCPPABI_VERSION
exception::~exception() _NOEXCEPT
{
}
const char* exception::what() const _NOEXCEPT
{
return "std::exception";
}
#endif // _LIBCPPABI_VERSION
#endif //LIBCXXRT
#if !defined(_LIBCPPABI_VERSION) && !defined(__GLIBCXX__)
bad_exception::~bad_exception() _NOEXCEPT
{
}
const char* bad_exception::what() const _NOEXCEPT
{
return "std::bad_exception";
}
#endif #endif
#if defined(_LIBCPP_ABI_MICROSOFT) #if defined(__GLIBCXX__)
#include "support/runtime/exception_msvc.ipp"
#include "support/runtime/exception_pointer_unimplemented.ipp" // libsupc++ does not implement the dependent EH ABI and the functionality
#elif defined(_LIBCPPABI_VERSION) // it uses to implement std::exception_ptr (which it declares as an alias of
#include "support/runtime/exception_libcxxabi.ipp" // std::__exception_ptr::exception_ptr) is not directly exported to clients. So
#include "support/runtime/exception_pointer_cxxabi.ipp" // we have little choice but to hijack std::__exception_ptr::exception_ptr's
#elif defined(LIBCXXRT) // (which fortunately has the same layout as our std::exception_ptr) copy
#include "support/runtime/exception_libcxxrt.ipp" // constructor, assignment operator and destructor (which are part of its
#include "support/runtime/exception_pointer_cxxabi.ipp" // stable ABI), and its rethrow_exception(std::__exception_ptr::exception_ptr)
#elif defined(__GLIBCXX__) // function.
#include "support/runtime/exception_glibcxx.ipp"
#include "support/runtime/exception_pointer_glibcxx.ipp" namespace __exception_ptr
#else {
#include "support/runtime/exception_fallback.ipp"
#include "support/runtime/exception_pointer_unimplemented.ipp" struct exception_ptr
{
void* __ptr_;
exception_ptr(const exception_ptr&) _NOEXCEPT;
exception_ptr& operator=(const exception_ptr&) _NOEXCEPT;
~exception_ptr() _NOEXCEPT;
};
}
_LIBCPP_NORETURN void rethrow_exception(__exception_ptr::exception_ptr);
#endif #endif
exception_ptr::~exception_ptr() _NOEXCEPT
{
#if HAVE_DEPENDENT_EH_ABI
__cxa_decrement_exception_refcount(__ptr_);
#elif defined(__GLIBCXX__)
reinterpret_cast<__exception_ptr::exception_ptr*>(this)->~exception_ptr();
#else
# if defined(_LIBCPP_MSVC)
_LIBCPP_WARNING("exception_ptr not yet implemented")
# else
# warning exception_ptr not yet implemented
# endif
fprintf(stderr, "exception_ptr not yet implemented\n");
::abort();
#endif
}
exception_ptr::exception_ptr(const exception_ptr& other) _NOEXCEPT
: __ptr_(other.__ptr_)
{
#if HAVE_DEPENDENT_EH_ABI
__cxa_increment_exception_refcount(__ptr_);
#elif defined(__GLIBCXX__)
new (reinterpret_cast<void*>(this)) __exception_ptr::exception_ptr(
reinterpret_cast<const __exception_ptr::exception_ptr&>(other));
#else
# if defined(_LIBCPP_MSVC)
_LIBCPP_WARNING("exception_ptr not yet implemented")
# else
# warning exception_ptr not yet implemented
# endif
fprintf(stderr, "exception_ptr not yet implemented\n");
::abort();
#endif
}
exception_ptr& exception_ptr::operator=(const exception_ptr& other) _NOEXCEPT
{
#if HAVE_DEPENDENT_EH_ABI
if (__ptr_ != other.__ptr_)
{
__cxa_increment_exception_refcount(other.__ptr_);
__cxa_decrement_exception_refcount(__ptr_);
__ptr_ = other.__ptr_;
}
return *this;
#elif defined(__GLIBCXX__)
*reinterpret_cast<__exception_ptr::exception_ptr*>(this) =
reinterpret_cast<const __exception_ptr::exception_ptr&>(other);
return *this;
#else
# if defined(_LIBCPP_MSVC)
_LIBCPP_WARNING("exception_ptr not yet implemented")
# else
# warning exception_ptr not yet implemented
# endif
fprintf(stderr, "exception_ptr not yet implemented\n");
::abort();
#endif
}
nested_exception::nested_exception() _NOEXCEPT
: __ptr_(current_exception())
{
}
#if !defined(__GLIBCXX__)
nested_exception::~nested_exception() _NOEXCEPT
{
}
#endif
_LIBCPP_NORETURN
void
nested_exception::rethrow_nested() const
{
if (__ptr_ == nullptr)
terminate();
rethrow_exception(__ptr_);
}
#if !defined(__GLIBCXX__)
exception_ptr current_exception() _NOEXCEPT
{
#if HAVE_DEPENDENT_EH_ABI
// be nicer if there was a constructor that took a ptr, then
// this whole function would be just:
// return exception_ptr(__cxa_current_primary_exception());
exception_ptr ptr;
ptr.__ptr_ = __cxa_current_primary_exception();
return ptr;
#else
# if defined(_LIBCPP_MSVC)
_LIBCPP_WARNING( "exception_ptr not yet implemented" )
# else
# warning exception_ptr not yet implemented
# endif
fprintf(stderr, "exception_ptr not yet implemented\n");
::abort();
#endif
}
#endif // !__GLIBCXX__
_LIBCPP_NORETURN
void rethrow_exception(exception_ptr p)
{
#if HAVE_DEPENDENT_EH_ABI
__cxa_rethrow_primary_exception(p.__ptr_);
// if p.__ptr_ is NULL, above returns so we terminate
terminate();
#elif defined(__GLIBCXX__)
rethrow_exception(reinterpret_cast<__exception_ptr::exception_ptr&>(p));
#else
# if defined(_LIBCPP_MSVC)
_LIBCPP_WARNING("exception_ptr not yet implemented")
# else
# warning exception_ptr not yet implemented
# endif
fprintf(stderr, "exception_ptr not yet implemented\n");
::abort();
#endif
}
} // std

158
src/new.cpp
View File

@@ -13,45 +13,27 @@
#include "new" #include "new"
#if defined(_LIBCPP_ABI_MICROSOFT) #if defined(__APPLE__) && !defined(LIBCXXRT) && \
// nothing todo !defined(_LIBCPP_BUILDING_HAS_NO_ABI_LIBRARY)
#elif defined(LIBCXX_BUILDING_LIBCXXABI)
#include <cxxabi.h> #include <cxxabi.h>
#elif defined(LIBCXXRT)
#include <cxxabi.h>
#include "new_handler_fallback.ipp"
#elif defined(__GLIBCXX__)
// nothing todo
#elif defined(_LIBCPP_BUILDING_NO_ABI_LIBRARY)
// nothing todo
#else
#error UNSUPPORTED configuration
#endif
namespace std #ifndef _LIBCPPABI_VERSION
{ // On Darwin, there are two STL shared libraries and a lower level ABI
// shared library. The global holding the current new handler is
// in the ABI library and named __cxa_new_handler.
#define __new_handler __cxxabiapple::__cxa_new_handler
#endif
#else // __APPLE__
#if defined(LIBCXXRT) || defined(LIBCXX_BUILDING_LIBCXXABI)
#include <cxxabi.h>
#endif // defined(LIBCXX_BUILDING_LIBCXXABI)
#if defined(_LIBCPP_BUILDING_HAS_NO_ABI_LIBRARY) || \
(!defined(_LIBCPPABI_VERSION) && !defined(__GLIBCXX__))
static std::new_handler __new_handler;
#endif // _LIBCPPABI_VERSION
#endif
#ifndef __GLIBCXX__ #ifndef __GLIBCXX__
const nothrow_t nothrow = {};
#endif
#ifndef LIBSTDCXX
void
__throw_bad_alloc()
{
#ifndef _LIBCPP_NO_EXCEPTIONS
throw bad_alloc();
#else
_VSTD::abort();
#endif
}
#endif // !LIBSTDCXX
} // std
#if !defined(__GLIBCXX__) && !defined(_LIBCPP_ABI_MICROSOFT)
// Implement all new and delete operators as weak definitions // Implement all new and delete operators as weak definitions
// in this shared library, so that they can be overridden by programs // in this shared library, so that they can be overridden by programs
@@ -295,5 +277,107 @@ operator delete[] (void* ptr, size_t, std::align_val_t alignment) _NOEXCEPT
::operator delete[](ptr, alignment); ::operator delete[](ptr, alignment);
} }
#endif // !_LIBCPP_HAS_NO_ALIGNED_ALLOCATION #endif // !defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION)
#endif // !__GLIBCXX__ && !_LIBCPP_ABI_MICROSOFT
#endif // !__GLIBCXX__
namespace std
{
#ifndef __GLIBCXX__
const nothrow_t nothrow = {};
#endif
#ifndef _LIBCPPABI_VERSION
#ifndef __GLIBCXX__
new_handler
set_new_handler(new_handler handler) _NOEXCEPT
{
return __sync_lock_test_and_set(&__new_handler, handler);
}
new_handler
get_new_handler() _NOEXCEPT
{
return __sync_fetch_and_add(&__new_handler, nullptr);
}
#endif // !__GLIBCXX__
#ifndef LIBCXXRT
bad_alloc::bad_alloc() _NOEXCEPT
{
}
#ifndef __GLIBCXX__
bad_alloc::~bad_alloc() _NOEXCEPT
{
}
const char*
bad_alloc::what() const _NOEXCEPT
{
return "std::bad_alloc";
}
#endif // !__GLIBCXX__
bad_array_new_length::bad_array_new_length() _NOEXCEPT
{
}
#ifndef __GLIBCXX__
bad_array_new_length::~bad_array_new_length() _NOEXCEPT
{
}
const char*
bad_array_new_length::what() const _NOEXCEPT
{
return "bad_array_new_length";
}
#endif // !__GLIBCXX__
#endif //LIBCXXRT
bad_array_length::bad_array_length() _NOEXCEPT
{
}
#ifndef __GLIBCXX__
bad_array_length::~bad_array_length() _NOEXCEPT
{
}
const char*
bad_array_length::what() const _NOEXCEPT
{
return "bad_array_length";
}
#endif // !__GLIBCXX__
#endif // _LIBCPPABI_VERSION
#ifndef LIBSTDCXX
void
__throw_bad_alloc()
{
#ifndef _LIBCPP_NO_EXCEPTIONS
throw bad_alloc();
#else
_VSTD::abort();
#endif
}
#endif // !LIBSTDCXX
} // std

182
src/support/runtime/exception_fallback.ipp
View File

@@ -1,182 +0,0 @@
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
namespace std {
_LIBCPP_SAFE_STATIC static std::terminate_handler __terminate_handler;
_LIBCPP_SAFE_STATIC static std::unexpected_handler __unexpected_handler;
// libcxxrt provides implementations of these functions itself.
unexpected_handler
set_unexpected(unexpected_handler func) _NOEXCEPT
{
return __sync_lock_test_and_set(&__unexpected_handler, func);
}
unexpected_handler
get_unexpected() _NOEXCEPT
{
return __sync_fetch_and_add(&__unexpected_handler, (unexpected_handler)0);
}
_LIBCPP_NORETURN
void unexpected()
{
(*get_unexpected())();
// unexpected handler should not return
terminate();
}
terminate_handler
set_terminate(terminate_handler func) _NOEXCEPT
{
return __sync_lock_test_and_set(&__terminate_handler, func);
}
terminate_handler
get_terminate() _NOEXCEPT
{
return __sync_fetch_and_add(&__terminate_handler, (terminate_handler)0);
}
#ifndef __EMSCRIPTEN__ // We provide this in JS
_LIBCPP_NORETURN
void
terminate() _NOEXCEPT
{
#ifndef _LIBCPP_NO_EXCEPTIONS
try
{
#endif // _LIBCPP_NO_EXCEPTIONS
(*get_terminate())();
// handler should not return
fprintf(stderr, "terminate_handler unexpectedly returned\n");
::abort();
#ifndef _LIBCPP_NO_EXCEPTIONS
}
catch (...)
{
// handler should not throw exception
fprintf(stderr, "terminate_handler unexpectedly threw an exception\n");
::abort();
}
#endif // _LIBCPP_NO_EXCEPTIONS
}
#endif // !__EMSCRIPTEN__
#if !defined(__EMSCRIPTEN__)
bool uncaught_exception() _NOEXCEPT { return uncaught_exceptions() > 0; }
int uncaught_exceptions() _NOEXCEPT
{
#warning uncaught_exception not yet implemented
fprintf(stderr, "uncaught_exceptions not yet implemented\n");
::abort();
}
#endif // !__EMSCRIPTEN__
exception::~exception() _NOEXCEPT
{
}
const char* exception::what() const _NOEXCEPT
{
return "std::exception";
}
bad_exception::~bad_exception() _NOEXCEPT
{
}
const char* bad_exception::what() const _NOEXCEPT
{
return "std::bad_exception";
}
bad_alloc::bad_alloc() _NOEXCEPT
{
}
bad_alloc::~bad_alloc() _NOEXCEPT
{
}
const char*
bad_alloc::what() const _NOEXCEPT
{
return "std::bad_alloc";
}
bad_array_new_length::bad_array_new_length() _NOEXCEPT
{
}
bad_array_new_length::~bad_array_new_length() _NOEXCEPT
{
}
const char*
bad_array_new_length::what() const _NOEXCEPT
{
return "bad_array_new_length";
}
bad_array_length::bad_array_length() _NOEXCEPT
{
}
bad_array_length::~bad_array_length() _NOEXCEPT
{
}
const char*
bad_array_length::what() const _NOEXCEPT
{
return "bad_array_length";
}
bad_cast::bad_cast() _NOEXCEPT
{
}
bad_typeid::bad_typeid() _NOEXCEPT
{
}
#ifndef __GLIBCXX__
bad_cast::~bad_cast() _NOEXCEPT
{
}
const char*
bad_cast::what() const _NOEXCEPT
{
return "std::bad_cast";
}
bad_typeid::~bad_typeid() _NOEXCEPT
{
}
const char*
bad_typeid::what() const _NOEXCEPT
{
return "std::bad_typeid";
}
} // namespace std

38
src/support/runtime/exception_glibcxx.ipp
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@@ -1,38 +0,0 @@
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef __GLIBCXX__
#error header can only be used when targeting libstdc++ or libsupc++
#endif
namespace std {
bad_alloc::bad_alloc() _NOEXCEPT
{
}
bad_array_new_length::bad_array_new_length() _NOEXCEPT
{
}
bad_array_length::bad_array_length() _NOEXCEPT
{
}
bad_cast::bad_cast() _NOEXCEPT
{
}
bad_typeid::bad_typeid() _NOEXCEPT
{
}
} // namespace

28
src/support/runtime/exception_libcxxabi.ipp
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@@ -1,28 +0,0 @@
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPPABI_VERSION
#error this header can only be used with libc++abi
#endif
namespace std {
bool uncaught_exception() _NOEXCEPT { return uncaught_exceptions() > 0; }
int uncaught_exceptions() _NOEXCEPT
{
# if _LIBCPPABI_VERSION > 1101
return __cxa_uncaught_exceptions();
# else
return __cxa_uncaught_exception() ? 1 : 0;
# endif
}
} // namespace std

41
src/support/runtime/exception_libcxxrt.ipp
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@@ -1,41 +0,0 @@
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LIBCXXRT
#error this header may only be used when targeting libcxxrt
#endif
namespace std {
bad_exception::~bad_exception() _NOEXCEPT
{
}
const char* bad_exception::what() const _NOEXCEPT
{
return "std::bad_exception";
}
bad_array_length::bad_array_length() _NOEXCEPT
{
}
bad_array_length::~bad_array_length() _NOEXCEPT
{
}
const char*
bad_array_length::what() const _NOEXCEPT
{
return "bad_array_length";
}
} // namespace std

89
src/support/runtime/exception_msvc.ipp
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@@ -1,89 +0,0 @@
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_ABI_MICROSOFT
#error this header can only be used when targeting the MSVC ABI
#endif
#include <stdio.h>
#include <stdlib.h>
#include <eh.h>
#include <corecrt_terminate.h>
namespace std {
// libcxxrt provides implementations of these functions itself.
unexpected_handler
set_unexpected(unexpected_handler func) _NOEXCEPT {
return ::set_unexpected(func);
}
unexpected_handler get_unexpected() _NOEXCEPT {
return ::_get_unexpected();
}
_LIBCPP_NORETURN
void unexpected() {
(*get_unexpected())();
// unexpected handler should not return
terminate();
}
terminate_handler set_terminate(terminate_handler func) _NOEXCEPT {
return ::set_terminate(func);
}
terminate_handler get_terminate() _NOEXCEPT {
return ::_get_terminate();
}
_LIBCPP_NORETURN
void terminate() _NOEXCEPT
{
#ifndef _LIBCPP_NO_EXCEPTIONS
try
{
#endif // _LIBCPP_NO_EXCEPTIONS
(*get_terminate())();
// handler should not return
fprintf(stderr, "terminate_handler unexpectedly returned\n");
::abort();
#ifndef _LIBCPP_NO_EXCEPTIONS
}
catch (...)
{
// handler should not throw exception
fprintf(stderr, "terminate_handler unexpectedly threw an exception\n");
::abort();
}
#endif // _LIBCPP_NO_EXCEPTIONS
}
bool uncaught_exception() _NOEXCEPT { return uncaught_exceptions() > 0; }
int uncaught_exceptions() _NOEXCEPT {
return __uncaught_exceptions();
}
bad_array_length::bad_array_length() _NOEXCEPT
{
}
bad_array_length::~bad_array_length() _NOEXCEPT
{
}
const char*
bad_array_length::what() const _NOEXCEPT
{
return "bad_array_length";
}
} // namespace std

74
src/support/runtime/exception_pointer_cxxabi.ipp
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@@ -1,74 +0,0 @@
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef HAVE_DEPENDENT_EH_ABI
#error this header may only be used with libc++abi or libcxxrt
#endif
namespace std {
exception_ptr::~exception_ptr() _NOEXCEPT {
__cxa_decrement_exception_refcount(__ptr_);
}
exception_ptr::exception_ptr(const exception_ptr& other) _NOEXCEPT
: __ptr_(other.__ptr_)
{
__cxa_increment_exception_refcount(__ptr_);
}
exception_ptr& exception_ptr::operator=(const exception_ptr& other) _NOEXCEPT
{
if (__ptr_ != other.__ptr_)
{
__cxa_increment_exception_refcount(other.__ptr_);
__cxa_decrement_exception_refcount(__ptr_);
__ptr_ = other.__ptr_;
}
return *this;
}
nested_exception::nested_exception() _NOEXCEPT
: __ptr_(current_exception())
{
}
nested_exception::~nested_exception() _NOEXCEPT
{
}
_LIBCPP_NORETURN
void
nested_exception::rethrow_nested() const
{
if (__ptr_ == nullptr)
terminate();
rethrow_exception(__ptr_);
}
exception_ptr current_exception() _NOEXCEPT
{
// be nicer if there was a constructor that took a ptr, then
// this whole function would be just:
// return exception_ptr(__cxa_current_primary_exception());
exception_ptr ptr;
ptr.__ptr_ = __cxa_current_primary_exception();
return ptr;
}
_LIBCPP_NORETURN
void rethrow_exception(exception_ptr p)
{
__cxa_rethrow_primary_exception(p.__ptr_);
// if p.__ptr_ is NULL, above returns so we terminate
terminate();
}
} // namespace std

74
src/support/runtime/exception_pointer_glibcxx.ipp
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@@ -1,74 +0,0 @@
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// libsupc++ does not implement the dependent EH ABI and the functionality
// it uses to implement std::exception_ptr (which it declares as an alias of
// std::__exception_ptr::exception_ptr) is not directly exported to clients. So
// we have little choice but to hijack std::__exception_ptr::exception_ptr's
// (which fortunately has the same layout as our std::exception_ptr) copy
// constructor, assignment operator and destructor (which are part of its
// stable ABI), and its rethrow_exception(std::__exception_ptr::exception_ptr)
// function.
namespace __exception_ptr
{
struct exception_ptr
{
void* __ptr_;
exception_ptr(const exception_ptr&) _NOEXCEPT;
exception_ptr& operator=(const exception_ptr&) _NOEXCEPT;
~exception_ptr() _NOEXCEPT;
};
}
_LIBCPP_NORETURN void rethrow_exception(__exception_ptr::exception_ptr);
exception_ptr::~exception_ptr() _NOEXCEPT
{
reinterpret_cast<__exception_ptr::exception_ptr*>(this)->~exception_ptr();
}
exception_ptr::exception_ptr(const exception_ptr& other) _NOEXCEPT
: __ptr_(other.__ptr_)
{
new (reinterpret_cast<void*>(this)) __exception_ptr::exception_ptr(
reinterpret_cast<const __exception_ptr::exception_ptr&>(other));
}
exception_ptr& exception_ptr::operator=(const exception_ptr& other) _NOEXCEPT
{
*reinterpret_cast<__exception_ptr::exception_ptr*>(this) =
reinterpret_cast<const __exception_ptr::exception_ptr&>(other);
return *this;
}
nested_exception::nested_exception() _NOEXCEPT
: __ptr_(current_exception())
{
}
_LIBCPP_NORETURN
void
nested_exception::rethrow_nested() const
{
if (__ptr_ == nullptr)
terminate();
rethrow_exception(__ptr_);
}
_LIBCPP_NORETURN
void rethrow_exception(exception_ptr p)
{
rethrow_exception(reinterpret_cast<__exception_ptr::exception_ptr&>(p));
}

80
src/support/runtime/exception_pointer_unimplemented.ipp
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@@ -1,80 +0,0 @@
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include <stdio.h>
#include <stdlib.h>
namespace std {
exception_ptr::~exception_ptr() _NOEXCEPT
{
# warning exception_ptr not yet implemented
fprintf(stderr, "exception_ptr not yet implemented\n");
::abort();
}
exception_ptr::exception_ptr(const exception_ptr& other) _NOEXCEPT
: __ptr_(other.__ptr_)
{
# warning exception_ptr not yet implemented
fprintf(stderr, "exception_ptr not yet implemented\n");
::abort();
}
exception_ptr& exception_ptr::operator=(const exception_ptr& other) _NOEXCEPT
{
# warning exception_ptr not yet implemented
fprintf(stderr, "exception_ptr not yet implemented\n");
::abort();
}
nested_exception::nested_exception() _NOEXCEPT
: __ptr_(current_exception())
{
}
#if !defined(__GLIBCXX__)
nested_exception::~nested_exception() _NOEXCEPT
{
}
#endif
_LIBCPP_NORETURN
void
nested_exception::rethrow_nested() const
{
# warning exception_ptr not yet implemented
fprintf(stderr, "exception_ptr not yet implemented\n");
::abort();
#if 0
if (__ptr_ == nullptr)
terminate();
rethrow_exception(__ptr_);
#endif // FIXME
}
exception_ptr current_exception() _NOEXCEPT
{
# warning exception_ptr not yet implemented
fprintf(stderr, "exception_ptr not yet implemented\n");
::abort();
}
_LIBCPP_NORETURN
void rethrow_exception(exception_ptr p)
{
# warning exception_ptr not yet implemented
fprintf(stderr, "exception_ptr not yet implemented\n");
::abort();
}
} // namespace std

27
src/support/runtime/new_handler_fallback.ipp
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@@ -1,27 +0,0 @@
// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
namespace std {
_LIBCPP_SAFE_STATIC static std::new_handler __new_handler;
new_handler
set_new_handler(new_handler handler) _NOEXCEPT
{
return __sync_lock_test_and_set(&__new_handler, handler);
}
new_handler
get_new_handler() _NOEXCEPT
{
return __sync_fetch_and_add(&__new_handler, nullptr);
}
} // namespace std

65
src/typeinfo.cpp
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@@ -6,11 +6,74 @@
// Source Licenses. See LICENSE.TXT for details. // Source Licenses. See LICENSE.TXT for details.
// //
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
#include <stdlib.h>
#if !defined(_LIBCPP_BUILDING_HAS_NO_ABI_LIBRARY) && \
(defined(__APPLE__) || defined(LIBCXXRT) || defined(LIBCXX_BUILDING_LIBCXXABI))
#include <cxxabi.h>
#endif
#include "typeinfo" #include "typeinfo"
#if defined(_LIBCPP_BUILDING_HAS_NO_ABI_LIBRARY) #if defined(_LIBCPP_BUILDING_HAS_NO_ABI_LIBRARY) || \
defined(_LIBCPP_ABI_MICROSOFT) // FIXME: This is a temporary workaround
std::type_info::~type_info() std::type_info::~type_info()
{ {
} }
#endif #endif
#if !defined(LIBCXXRT) && !defined(_LIBCPPABI_VERSION)
std::bad_cast::bad_cast() _NOEXCEPT
{
}
std::bad_typeid::bad_typeid() _NOEXCEPT
{
}
#ifndef __GLIBCXX__
std::bad_cast::~bad_cast() _NOEXCEPT
{
}
const char*
std::bad_cast::what() const _NOEXCEPT
{
return "std::bad_cast";
}
std::bad_typeid::~bad_typeid() _NOEXCEPT
{
}
const char*
std::bad_typeid::what() const _NOEXCEPT
{
return "std::bad_typeid";
}
#if defined(__APPLE__) && !defined(_LIBCPP_BUILDING_HAS_NO_ABI_LIBRARY)
// On Darwin, the cxa_bad_* functions cannot be in the lower level library
// because bad_cast and bad_typeid are defined in his higher level library
void __cxxabiv1::__cxa_bad_typeid()
{
#ifndef _LIBCPP_NO_EXCEPTIONS
throw std::bad_typeid();
#else
_VSTD::abort();
#endif
}
void __cxxabiv1::__cxa_bad_cast()
{
#ifndef _LIBCPP_NO_EXCEPTIONS
throw std::bad_cast();
#else
_VSTD::abort();
#endif
}
#endif
#endif // !__GLIBCXX__
#endif // !LIBCXXRT && !_LIBCPPABI_VERSION