-/* new abi support -*- C++ -*-
- Copyright (C) 2000
- Free Software Foundation, Inc.
- Written by Nathan Sidwell, Codesourcery LLC, <nathan@codesourcery.com> */
+// ABI Support -*- C++ -*-
-// This file is part of GNU CC.
+// Copyright (C) 2000-2016 Free Software Foundation, Inc.
//
-// GNU CC is free software; you can redistribute it and/or modify
+// This file is part of GCC.
+//
+// GCC is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
-// the Free Software Foundation; either version 2, or (at your option)
+// the Free Software Foundation; either version 3, or (at your option)
// any later version.
-//
-// GNU CC is distributed in the hope that it will be useful,
+//
+// GCC is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with GNU CC; see the file COPYING. If not, write to
-// the Free Software Foundation, 59 Temple Place - Suite 330,
-// Boston, MA 02111-1307, USA.
-
-// As a special exception, you may use this file as part of a free software
-// library without restriction. Specifically, if other files instantiate
-// templates or use macros or inline functions from this file, or you compile
-// this file and link it with other files to produce an executable, this
-// file does not by itself cause the resulting executable to be covered by
-// the GNU General Public License. This exception does not however
-// invalidate any other reasons why the executable file might be covered by
-// the GNU General Public License.
+//
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+// Written by Nathan Sidwell, Codesourcery LLC, <nathan@codesourcery.com>
/* This file declares the new abi entry points into the runtime. It is not
normally necessary for user programs to include this header, or use the
entry points directly. However, this header is available should that be
needed.
-
+
Some of the entry points are intended for both C and C++, thus this header
is includable from both C and C++. Though the C++ specific parts are not
available in C, naturally enough. */
-#ifndef __CXXABI_H
-#define __CXXABI_H 1
+/** @file cxxabi.h
+ * The header provides an interface to the C++ ABI.
+ */
+
+#ifndef _CXXABI_H
+#define _CXXABI_H 1
-#if defined(__cplusplus) && (!defined(__GXX_ABI_VERSION) || __GXX_ABI_VERSION < 100)
-/* These structures only make sense when targeting the new abi, catch a
- bonehead error early rather than let the user get very confused. */
-#error "Not targetting the new abi, supply -fnew-abi"
+#pragma GCC system_header
+
+#pragma GCC visibility push(default)
+
+#include <stddef.h>
+#include <bits/c++config.h>
+#include <bits/cxxabi_tweaks.h>
+#include <bits/cxxabi_forced.h>
+#include <bits/cxxabi_init_exception.h>
+
+#ifdef __cplusplus
+namespace __cxxabiv1
+{
+ extern "C"
+ {
#endif
+ typedef __cxa_cdtor_return_type (*__cxa_cdtor_type)(void *);
+
+ // Allocate array.
+ void*
+ __cxa_vec_new(size_t __element_count, size_t __element_size,
+ size_t __padding_size, __cxa_cdtor_type __constructor,
+ __cxa_cdtor_type __destructor);
+
+ void*
+ __cxa_vec_new2(size_t __element_count, size_t __element_size,
+ size_t __padding_size, __cxa_cdtor_type __constructor,
+ __cxa_cdtor_type __destructor, void *(*__alloc) (size_t),
+ void (*__dealloc) (void*));
+
+ void*
+ __cxa_vec_new3(size_t __element_count, size_t __element_size,
+ size_t __padding_size, __cxa_cdtor_type __constructor,
+ __cxa_cdtor_type __destructor, void *(*__alloc) (size_t),
+ void (*__dealloc) (void*, size_t));
+
+ // Construct array.
+ __cxa_vec_ctor_return_type
+ __cxa_vec_ctor(void* __array_address, size_t __element_count,
+ size_t __element_size, __cxa_cdtor_type __constructor,
+ __cxa_cdtor_type __destructor);
+
+ __cxa_vec_ctor_return_type
+ __cxa_vec_cctor(void* __dest_array, void* __src_array,
+ size_t __element_count, size_t __element_size,
+ __cxa_cdtor_return_type (*__constructor) (void*, void*),
+ __cxa_cdtor_type __destructor);
+
+ // Destruct array.
+ void
+ __cxa_vec_dtor(void* __array_address, size_t __element_count,
+ size_t __element_size, __cxa_cdtor_type __destructor);
+
+ void
+ __cxa_vec_cleanup(void* __array_address, size_t __element_count, size_t __s,
+ __cxa_cdtor_type __destructor) _GLIBCXX_NOTHROW;
+
+ // Destruct and release array.
+ void
+ __cxa_vec_delete(void* __array_address, size_t __element_size,
+ size_t __padding_size, __cxa_cdtor_type __destructor);
+
+ void
+ __cxa_vec_delete2(void* __array_address, size_t __element_size,
+ size_t __padding_size, __cxa_cdtor_type __destructor,
+ void (*__dealloc) (void*));
+
+ void
+ __cxa_vec_delete3(void* __array_address, size_t __element_size,
+ size_t __padding_size, __cxa_cdtor_type __destructor,
+ void (*__dealloc) (void*, size_t));
+
+ int
+ __cxa_guard_acquire(__guard*);
+
+ void
+ __cxa_guard_release(__guard*) _GLIBCXX_NOTHROW;
+
+ void
+ __cxa_guard_abort(__guard*) _GLIBCXX_NOTHROW;
+
+ // DSO destruction.
+ int
+ __cxa_atexit(void (*)(void*), void*, void*) _GLIBCXX_NOTHROW;
+
+ int
+ __cxa_finalize(void*);
+
+ // TLS destruction.
+ int
+ __cxa_thread_atexit(void (*)(void*), void*, void *) _GLIBCXX_NOTHROW;
+
+ // Pure virtual functions.
+ void
+ __cxa_pure_virtual(void) __attribute__ ((__noreturn__));
+
+ void
+ __cxa_deleted_virtual(void) __attribute__ ((__noreturn__));
+
+ // Exception handling auxiliary.
+ void
+ __cxa_bad_cast() __attribute__((__noreturn__));
+
+ void
+ __cxa_bad_typeid() __attribute__((__noreturn__));
+
+ void
+ __cxa_throw_bad_array_new_length() __attribute__((__noreturn__));
+
+ /**
+ * @brief Demangling routine.
+ * ABI-mandated entry point in the C++ runtime library for demangling.
+ *
+ * @param __mangled_name A NUL-terminated character string
+ * containing the name to be demangled.
+ *
+ * @param __output_buffer A region of memory, allocated with
+ * malloc, of @a *__length bytes, into which the demangled name is
+ * stored. If @a __output_buffer is not long enough, it is
+ * expanded using realloc. @a __output_buffer may instead be NULL;
+ * in that case, the demangled name is placed in a region of memory
+ * allocated with malloc.
+ *
+ * @param __length If @a __length is non-NULL, the length of the
+ * buffer containing the demangled name is placed in @a *__length.
+ *
+ * @param __status @a *__status is set to one of the following values:
+ * 0: The demangling operation succeeded.
+ * -1: A memory allocation failure occurred.
+ * -2: @a mangled_name is not a valid name under the C++ ABI mangling rules.
+ * -3: One of the arguments is invalid.
+ *
+ * @return A pointer to the start of the NUL-terminated demangled
+ * name, or NULL if the demangling fails. The caller is
+ * responsible for deallocating this memory using @c free.
+ *
+ * The demangling is performed using the C++ ABI mangling rules,
+ * with GNU extensions. For example, this function is used in
+ * __gnu_cxx::__verbose_terminate_handler.
+ *
+ * See http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt12ch39.html
+ * for other examples of use.
+ *
+ * @note The same demangling functionality is available via
+ * libiberty (@c <libiberty/demangle.h> and @c libiberty.a) in GCC
+ * 3.1 and later, but that requires explicit installation (@c
+ * --enable-install-libiberty) and uses a different API, although
+ * the ABI is unchanged.
+ */
+ char*
+ __cxa_demangle(const char* __mangled_name, char* __output_buffer,
+ size_t* __length, int* __status);
+
#ifdef __cplusplus
+ }
+} // namespace __cxxabiv1
+#endif
-// We use the compiler builtins __SIZE_TYPE__ and __PTRDIFF_TYPE__ instead of
-// std::size_t and std::ptrdiff_t respectively. This makes us independant of
-// the conformance level of <cstddef> and whether -fhonor-std was supplied.
-// <cstddef> is not currently available during compiler building anyway.
-// Including <stddef.h> would be wrong, as that would rudely place size_t in
-// the global namespace.
+#ifdef __cplusplus
#include <typeinfo>
namespace __cxxabiv1
{
+ // Type information for int, float etc.
+ class __fundamental_type_info : public std::type_info
+ {
+ public:
+ explicit
+ __fundamental_type_info(const char* __n) : std::type_info(__n) { }
-/* type information for int, float etc */
-class __fundamental_type_info
- : public std::type_info
-{
-public:
- virtual ~__fundamental_type_info ();
-public:
- explicit __fundamental_type_info (const char *__n)
- : std::type_info (__n)
- { }
-};
+ virtual
+ ~__fundamental_type_info();
+ };
-/* type information for array objects */
-class __array_type_info
- : public std::type_info
-{
-/* abi defined member functions */
-protected:
- virtual ~__array_type_info ();
-public:
- explicit __array_type_info (const char *__n)
- : std::type_info (__n)
- { }
-};
+ // Type information for array objects.
+ class __array_type_info : public std::type_info
+ {
+ public:
+ explicit
+ __array_type_info(const char* __n) : std::type_info(__n) { }
-/* type information for functions (both member and non-member) */
-class __function_type_info
- : public std::type_info
-{
-/* abi defined member functions */
-public:
- virtual ~__function_type_info ();
-public:
- explicit __function_type_info (const char *__n)
- : std::type_info (__n)
- { }
-
-/* implementation defined member functions */
-protected:
- virtual bool __is_function_p () const;
-};
-
-/* type information for enumerations */
-class __enum_type_info
- : public std::type_info
-{
-/* abi defined member functions */
-public:
- virtual ~__enum_type_info ();
-public:
- explicit __enum_type_info (const char *__n)
- : std::type_info (__n)
- { }
-};
+ virtual
+ ~__array_type_info();
+ };
-/* common type information for simple pointers and pointers to member */
-class __pbase_type_info
- : public std::type_info
-{
-/* abi defined member variables */
-public:
- unsigned int __qualifier_flags; /* qualification of the target object */
- const std::type_info *__pointee; /* type of pointed to object */
-
-/* abi defined member functions */
-public:
- virtual ~__pbase_type_info ();
-public:
- explicit __pbase_type_info (const char *__n,
- int __quals,
- const std::type_info *__type)
- : std::type_info (__n), __qualifier_flags (__quals), __pointee (__type)
- { }
+ // Type information for functions (both member and non-member).
+ class __function_type_info : public std::type_info
+ {
+ public:
+ explicit
+ __function_type_info(const char* __n) : std::type_info(__n) { }
+
+ virtual
+ ~__function_type_info();
-/* implementation defined types */
-public:
- enum __qualifier_masks {
- __const_mask = 0x1,
- __volatile_mask = 0x2,
- __restrict_mask = 0x4,
- __incomplete_mask = 0x8,
- __incomplete_class_mask = 0x10
+ protected:
+ // Implementation defined member function.
+ virtual bool
+ __is_function_p() const;
};
-/* implementation defined member functions */
-protected:
- virtual bool __do_catch (const std::type_info *__thr_type,
- void **__thr_obj,
- unsigned __outer) const;
-protected:
- inline virtual bool __pointer_catch (const __pbase_type_info *__thr_type,
- void **__thr_obj,
- unsigned __outer) const;
-};
-
-/* type information for simple pointers */
-class __pointer_type_info
- : public __pbase_type_info
-{
-/* abi defined member functions */
-public:
- virtual ~__pointer_type_info ();
-public:
- explicit __pointer_type_info (const char *__n,
- int __quals,
- const std::type_info *__type)
- : __pbase_type_info (__n, __quals, __type)
+ // Type information for enumerations.
+ class __enum_type_info : public std::type_info
+ {
+ public:
+ explicit
+ __enum_type_info(const char* __n) : std::type_info(__n) { }
+
+ virtual
+ ~__enum_type_info();
+ };
+
+ // Common type information for simple pointers and pointers to member.
+ class __pbase_type_info : public std::type_info
+ {
+ public:
+ unsigned int __flags; // Qualification of the target object.
+ const std::type_info* __pointee; // Type of pointed to object.
+
+ explicit
+ __pbase_type_info(const char* __n, int __quals,
+ const std::type_info* __type)
+ : std::type_info(__n), __flags(__quals), __pointee(__type)
{ }
-/* implementation defined member functions */
-protected:
- virtual bool __is_pointer_p () const;
+ virtual
+ ~__pbase_type_info();
+
+ // Implementation defined type.
+ enum __masks
+ {
+ __const_mask = 0x1,
+ __volatile_mask = 0x2,
+ __restrict_mask = 0x4,
+ __incomplete_mask = 0x8,
+ __incomplete_class_mask = 0x10,
+ __transaction_safe_mask = 0x20,
+ __noexcept_mask = 0x40
+ };
+
+ protected:
+ __pbase_type_info(const __pbase_type_info&);
+
+ __pbase_type_info&
+ operator=(const __pbase_type_info&);
+
+ // Implementation defined member functions.
+ virtual bool
+ __do_catch(const std::type_info* __thr_type, void** __thr_obj,
+ unsigned int __outer) const;
+
+ inline virtual bool
+ __pointer_catch(const __pbase_type_info* __thr_type, void** __thr_obj,
+ unsigned __outer) const;
+ };
-protected:
- virtual bool __pointer_catch (const __pbase_type_info *__thr_type,
- void **__thr_obj,
- unsigned __outer) const;
-};
+ inline bool __pbase_type_info::
+ __pointer_catch (const __pbase_type_info *thrown_type,
+ void **thr_obj,
+ unsigned outer) const
+ {
+ return __pointee->__do_catch (thrown_type->__pointee, thr_obj, outer + 2);
+ }
-/* type information for a pointer to member variable */
-class __pointer_to_member_type_info
- : public __pbase_type_info
-{
-/* abi defined member variables */
-public:
- __class_type_info *__context_class; /* class of the member */
-
-/* abi defined member functions */
-public:
- virtual ~__pointer_to_member_type_info ();
-public:
- explicit __pointer_to_member_type_info (const char *__n,
- int __quals,
- const std::type_info *__type,
- __class_type_info *__klass)
- : __pbase_type_info (__n, __quals, __type), __context_class (__klass)
- { }
+ // Type information for simple pointers.
+ class __pointer_type_info : public __pbase_type_info
+ {
+ public:
+ explicit
+ __pointer_type_info(const char* __n, int __quals,
+ const std::type_info* __type)
+ : __pbase_type_info (__n, __quals, __type) { }
-/* implementation defined member functions */
-protected:
- virtual bool __pointer_catch (const __pbase_type_info *__thr_type,
- void **__thr_obj,
- unsigned __outer) const;
-};
-class __class_type_info;
+ virtual
+ ~__pointer_type_info();
-/* helper class for __vmi_class_type */
-class __base_class_info
-{
-/* abi defined member variables */
-public:
- const __class_type_info *__base; /* base class type */
- long __offset_flags; /* offset and info */
-
-/* implementation defined types */
-public:
- enum __offset_flags_masks {
- __virtual_mask = 0x1,
- __public_mask = 0x2,
- hwm_bit = 2,
- offset_shift = 8 /* bits to shift offset by */
+ protected:
+ // Implementation defined member functions.
+ virtual bool
+ __is_pointer_p() const;
+
+ virtual bool
+ __pointer_catch(const __pbase_type_info* __thr_type, void** __thr_obj,
+ unsigned __outer) const;
+ };
+
+ class __class_type_info;
+
+ // Type information for a pointer to member variable.
+ class __pointer_to_member_type_info : public __pbase_type_info
+ {
+ public:
+ __class_type_info* __context; // Class of the member.
+
+ explicit
+ __pointer_to_member_type_info(const char* __n, int __quals,
+ const std::type_info* __type,
+ __class_type_info* __klass)
+ : __pbase_type_info(__n, __quals, __type), __context(__klass) { }
+
+ virtual
+ ~__pointer_to_member_type_info();
+
+ protected:
+ __pointer_to_member_type_info(const __pointer_to_member_type_info&);
+
+ __pointer_to_member_type_info&
+ operator=(const __pointer_to_member_type_info&);
+
+ // Implementation defined member function.
+ virtual bool
+ __pointer_catch(const __pbase_type_info* __thr_type, void** __thr_obj,
+ unsigned __outer) const;
};
-
-/* implementation defined member functions */
-public:
- bool __is_virtual_p () const
+
+ // Helper class for __vmi_class_type.
+ class __base_class_type_info
+ {
+ public:
+ const __class_type_info* __base_type; // Base class type.
+#ifdef _GLIBCXX_LLP64
+ long long __offset_flags; // Offset and info.
+#else
+ long __offset_flags; // Offset and info.
+#endif
+
+ enum __offset_flags_masks
+ {
+ __virtual_mask = 0x1,
+ __public_mask = 0x2,
+ __hwm_bit = 2,
+ __offset_shift = 8 // Bits to shift offset.
+ };
+
+ // Implementation defined member functions.
+ bool
+ __is_virtual_p() const
{ return __offset_flags & __virtual_mask; }
- bool __is_public_p () const
+
+ bool
+ __is_public_p() const
{ return __offset_flags & __public_mask; }
- __PTRDIFF_TYPE__ __offset () const
- {
- // This shift, being of a signed type, is implementation defined. GCC
- // implements such shifts as arithmetic, which is what we want.
- return static_cast<__PTRDIFF_TYPE__> (__offset_flags) >> offset_shift;
+
+ ptrdiff_t
+ __offset() const
+ {
+ // This shift, being of a signed type, is implementation
+ // defined. GCC implements such shifts as arithmetic, which is
+ // what we want.
+ return static_cast<ptrdiff_t>(__offset_flags) >> __offset_shift;
}
-};
+ };
-/* type information for a class */
-class __class_type_info
- : public std::type_info
-{
-/* abi defined member functions */
-public:
- virtual ~__class_type_info ();
-public:
- explicit __class_type_info (const char *__n)
- : type_info (__n)
- { }
+ // Type information for a class.
+ class __class_type_info : public std::type_info
+ {
+ public:
+ explicit
+ __class_type_info (const char *__n) : type_info(__n) { }
+
+ virtual
+ ~__class_type_info ();
+
+ // Implementation defined types.
+ // The type sub_kind tells us about how a base object is contained
+ // within a derived object. We often do this lazily, hence the
+ // UNKNOWN value. At other times we may use NOT_CONTAINED to mean
+ // not publicly contained.
+ enum __sub_kind
+ {
+ // We have no idea.
+ __unknown = 0,
+
+ // Not contained within us (in some circumstances this might
+ // mean not contained publicly)
+ __not_contained,
+
+ // Contained ambiguously.
+ __contained_ambig,
+
+ // Via a virtual path.
+ __contained_virtual_mask = __base_class_type_info::__virtual_mask,
+
+ // Via a public path.
+ __contained_public_mask = __base_class_type_info::__public_mask,
+
+ // Contained within us.
+ __contained_mask = 1 << __base_class_type_info::__hwm_bit,
+
+ __contained_private = __contained_mask,
+ __contained_public = __contained_mask | __contained_public_mask
+ };
+
+ struct __upcast_result;
+ struct __dyncast_result;
+
+ protected:
+ // Implementation defined member functions.
+ virtual bool
+ __do_upcast(const __class_type_info* __dst_type, void**__obj_ptr) const;
+
+ virtual bool
+ __do_catch(const type_info* __thr_type, void** __thr_obj,
+ unsigned __outer) const;
+
+ public:
+ // Helper for upcast. See if DST is us, or one of our bases.
+ // Return false if not found, true if found.
+ virtual bool
+ __do_upcast(const __class_type_info* __dst, const void* __obj,
+ __upcast_result& __restrict __result) const;
+
+ // Indicate whether SRC_PTR of type SRC_TYPE is contained publicly
+ // within OBJ_PTR. OBJ_PTR points to a base object of our type,
+ // which is the destination type. SRC2DST indicates how SRC
+ // objects might be contained within this type. If SRC_PTR is one
+ // of our SRC_TYPE bases, indicate the virtuality. Returns
+ // not_contained for non containment or private containment.
+ inline __sub_kind
+ __find_public_src(ptrdiff_t __src2dst, const void* __obj_ptr,
+ const __class_type_info* __src_type,
+ const void* __src_ptr) const;
+
+ // Helper for dynamic cast. ACCESS_PATH gives the access from the
+ // most derived object to this base. DST_TYPE indicates the
+ // desired type we want. OBJ_PTR points to a base of our type
+ // within the complete object. SRC_TYPE indicates the static type
+ // started from and SRC_PTR points to that base within the most
+ // derived object. Fill in RESULT with what we find. Return true
+ // if we have located an ambiguous match.
+ virtual bool
+ __do_dyncast(ptrdiff_t __src2dst, __sub_kind __access_path,
+ const __class_type_info* __dst_type, const void* __obj_ptr,
+ const __class_type_info* __src_type, const void* __src_ptr,
+ __dyncast_result& __result) const;
+
+ // Helper for find_public_subobj. SRC2DST indicates how SRC_TYPE
+ // bases are inherited by the type started from -- which is not
+ // necessarily the current type. The current type will be a base
+ // of the destination type. OBJ_PTR points to the current base.
+ virtual __sub_kind
+ __do_find_public_src(ptrdiff_t __src2dst, const void* __obj_ptr,
+ const __class_type_info* __src_type,
+ const void* __src_ptr) const;
+ };
-/* implementation defined types */
-public:
- /* sub_kind tells us about how a base object is contained within a derived
- object. We often do this lazily, hence the UNKNOWN value. At other times
- we may use NOT_CONTAINED to mean not publicly contained. */
- enum __sub_kind
+ // Type information for a class with a single non-virtual base.
+ class __si_class_type_info : public __class_type_info
{
- __unknown = 0, /* we have no idea */
- __not_contained, /* not contained within us (in some */
- /* circumstances this might mean not contained */
- /* publicly) */
- __contained_ambig, /* contained ambiguously */
-
- __contained_virtual_mask = __base_class_info::__virtual_mask, /* via a virtual path */
- __contained_public_mask = __base_class_info::__public_mask, /* via a public path */
- __contained_mask = 1 << __base_class_info::hwm_bit, /* contained within us */
-
- __contained_private = __contained_mask,
- __contained_public = __contained_mask | __contained_public_mask
+ public:
+ const __class_type_info* __base_type;
+
+ explicit
+ __si_class_type_info(const char *__n, const __class_type_info *__base)
+ : __class_type_info(__n), __base_type(__base) { }
+
+ virtual
+ ~__si_class_type_info();
+
+ protected:
+ __si_class_type_info(const __si_class_type_info&);
+
+ __si_class_type_info&
+ operator=(const __si_class_type_info&);
+
+ // Implementation defined member functions.
+ virtual bool
+ __do_dyncast(ptrdiff_t __src2dst, __sub_kind __access_path,
+ const __class_type_info* __dst_type, const void* __obj_ptr,
+ const __class_type_info* __src_type, const void* __src_ptr,
+ __dyncast_result& __result) const;
+
+ virtual __sub_kind
+ __do_find_public_src(ptrdiff_t __src2dst, const void* __obj_ptr,
+ const __class_type_info* __src_type,
+ const void* __sub_ptr) const;
+
+ virtual bool
+ __do_upcast(const __class_type_info*__dst, const void*__obj,
+ __upcast_result& __restrict __result) const;
};
-public:
- struct __upcast_result;
- struct __dyncast_result;
-
-/* implementation defined member functions */
-protected:
- virtual bool __do_upcast (const __class_type_info *__dst_type, void **__obj_ptr) const;
-
-protected:
- virtual bool __do_catch (const type_info *__thr_type, void **__thr_obj,
- unsigned __outer) const;
-
-
-public:
- /* Helper for upcast. See if DST is us, or one of our bases. */
- /* Return false if not found, true if found. */
- virtual bool __do_upcast (const __class_type_info *__dst,
- const void *__obj,
- __upcast_result &__restrict __result) const;
-
-public:
- /* Indicate whether SRC_PTR of type SRC_TYPE is contained publicly within
- OBJ_PTR. OBJ_PTR points to a base object of our type, which is the
- destination type. SRC2DST indicates how SRC objects might be contained
- within this type. If SRC_PTR is one of our SRC_TYPE bases, indicate the
- virtuality. Returns not_contained for non containment or private
- containment. */
- inline __sub_kind __find_public_src (__PTRDIFF_TYPE__ __src2dst,
- const void *__obj_ptr,
- const __class_type_info *__src_type,
- const void *__src_ptr) const;
-
-public:
- /* dynamic cast helper. ACCESS_PATH gives the access from the most derived
- object to this base. DST_TYPE indicates the desired type we want. OBJ_PTR
- points to a base of our type within the complete object. SRC_TYPE
- indicates the static type started from and SRC_PTR points to that base
- within the most derived object. Fill in RESULT with what we find. Return
- true if we have located an ambiguous match. */
- virtual bool __do_dyncast (__PTRDIFF_TYPE__ __src2dst,
- __sub_kind __access_path,
- const __class_type_info *__dst_type,
- const void *__obj_ptr,
- const __class_type_info *__src_type,
- const void *__src_ptr,
- __dyncast_result &__result) const;
-public:
- /* Helper for find_public_subobj. SRC2DST indicates how SRC_TYPE bases are
- inherited by the type started from -- which is not necessarily the
- current type. The current type will be a base of the destination type.
- OBJ_PTR points to the current base. */
- virtual __sub_kind __do_find_public_src (__PTRDIFF_TYPE__ __src2dst,
- const void *__obj_ptr,
- const __class_type_info *__src_type,
- const void *__src_ptr) const;
-};
-
-/* type information for a class with a single non-virtual base */
-class __si_class_type_info
- : public __class_type_info
-{
-/* abi defined member variables */
-public:
- const __class_type_info *__base_type;
-
-/* abi defined member functions */
-public:
- virtual ~__si_class_type_info ();
-public:
- explicit __si_class_type_info (const char *__n,
- const __class_type_info *__base)
- : __class_type_info (__n), __base_type (__base)
- { }
+ // Type information for a class with multiple and/or virtual bases.
+ class __vmi_class_type_info : public __class_type_info
+ {
+ public:
+ unsigned int __flags; // Details about the class hierarchy.
+ unsigned int __base_count; // Number of direct bases.
+
+ // The array of bases uses the trailing array struct hack so this
+ // class is not constructable with a normal constructor. It is
+ // internally generated by the compiler.
+ __base_class_type_info __base_info[1]; // Array of bases.
+
+ explicit
+ __vmi_class_type_info(const char* __n, int ___flags)
+ : __class_type_info(__n), __flags(___flags), __base_count(0) { }
+
+ virtual
+ ~__vmi_class_type_info();
+
+ // Implementation defined types.
+ enum __flags_masks
+ {
+ __non_diamond_repeat_mask = 0x1, // Distinct instance of repeated base.
+ __diamond_shaped_mask = 0x2, // Diamond shaped multiple inheritance.
+ __flags_unknown_mask = 0x10
+ };
+
+ protected:
+ // Implementation defined member functions.
+ virtual bool
+ __do_dyncast(ptrdiff_t __src2dst, __sub_kind __access_path,
+ const __class_type_info* __dst_type, const void* __obj_ptr,
+ const __class_type_info* __src_type, const void* __src_ptr,
+ __dyncast_result& __result) const;
+
+ virtual __sub_kind
+ __do_find_public_src(ptrdiff_t __src2dst, const void* __obj_ptr,
+ const __class_type_info* __src_type,
+ const void* __src_ptr) const;
+
+ virtual bool
+ __do_upcast(const __class_type_info* __dst, const void* __obj,
+ __upcast_result& __restrict __result) const;
+ };
-/* implementation defined member functions */
-protected:
- virtual bool __do_dyncast (__PTRDIFF_TYPE__ __src2dst,
- __sub_kind __access_path,
- const __class_type_info *__dst_type,
- const void *__obj_ptr,
- const __class_type_info *__src_type,
- const void *__src_ptr,
- __dyncast_result &__result) const;
- virtual __sub_kind __do_find_public_src (__PTRDIFF_TYPE__ __src2dst,
- const void *__obj_ptr,
- const __class_type_info *__src_type,
- const void *__sub_ptr) const;
- virtual bool __do_upcast (const __class_type_info *__dst,
- const void *__obj,
- __upcast_result &__restrict __result) const;
-};
-
-/* type information for a class with multiple and/or virtual bases */
-class __vmi_class_type_info : public __class_type_info {
-/* abi defined member variables */
-public:
- unsigned int __flags; /* details about the class heirarchy */
- unsigned int __base_count; /* number of direct bases */
- __base_class_info const __base_info[1]; /* array of bases */
- /* The array of bases uses the trailing array struct hack
- so this class is not constructable with a normal constructor. It is
- internally generated by the compiler. */
-
-/* abi defined member functions */
-public:
- virtual ~__vmi_class_type_info ();
-public:
- explicit __vmi_class_type_info (const char *__n,
- int ___flags)
- : __class_type_info (__n), __flags (___flags), __base_count (0)
- { }
+ // Exception handling forward declarations.
+ struct __cxa_exception;
+ struct __cxa_refcounted_exception;
+ struct __cxa_dependent_exception;
+ struct __cxa_eh_globals;
+
+ extern "C"
+ {
+ // Dynamic cast runtime.
+
+ // src2dst has the following possible values
+ // >-1: src_type is a unique public non-virtual base of dst_type
+ // dst_ptr + src2dst == src_ptr
+ // -1: unspecified relationship
+ // -2: src_type is not a public base of dst_type
+ // -3: src_type is a multiple public non-virtual base of dst_type
+ void*
+ __dynamic_cast(const void* __src_ptr, // Starting object.
+ const __class_type_info* __src_type, // Static type of object.
+ const __class_type_info* __dst_type, // Desired target type.
+ ptrdiff_t __src2dst); // How src and dst are related.
+
+
+ // Exception handling runtime.
+
+ // The __cxa_eh_globals for the current thread can be obtained by using
+ // either of the following functions. The "fast" version assumes at least
+ // one prior call of __cxa_get_globals has been made from the current
+ // thread, so no initialization is necessary.
+ __cxa_eh_globals*
+ __cxa_get_globals() _GLIBCXX_NOTHROW __attribute__ ((__const__));
+
+ __cxa_eh_globals*
+ __cxa_get_globals_fast() _GLIBCXX_NOTHROW __attribute__ ((__const__));
+
+ // Free the space allocated for the primary exception.
+ void
+ __cxa_free_exception(void*) _GLIBCXX_NOTHROW;
+
+ // Throw the exception.
+ void
+ __cxa_throw(void*, std::type_info*, void (_GLIBCXX_CDTOR_CALLABI *) (void *))
+ __attribute__((__noreturn__));
+
+ // Used to implement exception handlers.
+ void*
+ __cxa_get_exception_ptr(void*) _GLIBCXX_NOTHROW __attribute__ ((__pure__));
+
+ void*
+ __cxa_begin_catch(void*) _GLIBCXX_NOTHROW;
-/* implementation defined types */
-public:
- enum __flags_masks {
- __non_diamond_repeat_mask = 0x1, /* distinct instance of repeated base */
- __diamond_shaped_mask = 0x2, /* diamond shaped multiple inheritance */
- non_public_base_mask = 0x4, /* has non-public direct or indirect base */
- public_base_mask = 0x8, /* has public base (direct) */
-
- __flags_unknown_mask = 0x10
+ void
+ __cxa_end_catch();
+
+ void
+ __cxa_rethrow() __attribute__((__noreturn__));
+
+ // Returns the type_info for the currently handled exception [15.3/8], or
+ // null if there is none.
+ std::type_info*
+ __cxa_current_exception_type() _GLIBCXX_NOTHROW __attribute__ ((__pure__));
+
+ // GNU Extensions.
+
+ // Allocate memory for a dependent exception.
+ __cxa_dependent_exception*
+ __cxa_allocate_dependent_exception() _GLIBCXX_NOTHROW;
+
+ // Free the space allocated for the dependent exception.
+ void
+ __cxa_free_dependent_exception(__cxa_dependent_exception*) _GLIBCXX_NOTHROW;
+
+ } // extern "C"
+
+ // A magic placeholder class that can be caught by reference
+ // to recognize foreign exceptions.
+ class __foreign_exception
+ {
+ virtual ~__foreign_exception() throw();
+ virtual void __pure_dummy() = 0; // prevent catch by value
};
-/* implementation defined member functions */
-protected:
- virtual bool __do_dyncast (__PTRDIFF_TYPE__ __src2dst,
- __sub_kind __access_path,
- const __class_type_info *__dst_type,
- const void *__obj_ptr,
- const __class_type_info *__src_type,
- const void *__src_ptr,
- __dyncast_result &__result) const;
- virtual __sub_kind __do_find_public_src (__PTRDIFF_TYPE__ __src2dst,
- const void *__obj_ptr,
- const __class_type_info *__src_type,
- const void *__src_ptr) const;
- virtual bool __do_upcast (const __class_type_info *__dst,
- const void *__obj,
- __upcast_result &__restrict __result) const;
-};
-
-/* dynamic cast runtime */
-extern "C"
-void *__dynamic_cast (const void *__src_ptr, /* object started from */
- const __class_type_info *__src_type, /* static type of object */
- const __class_type_info *__dst_type, /* desired target type */
- __PTRDIFF_TYPE__ __src2dst); /* how src and dst are related */
-
- /* src2dst has the following possible values
- >= 0: src_type is a unique public non-virtual base of dst_type
- dst_ptr + src2dst == src_ptr
- -1: unspecified relationship
- -2: src_type is not a public base of dst_type
- -3: src_type is a multiple public non-virtual base of dst_type */
-
-/* array ctor/dtor routines */
-
-/* allocate and construct array */
-extern "C"
-void *__cxa_vec_new (__SIZE_TYPE__ __element_count,
- __SIZE_TYPE__ __element_size,
- __SIZE_TYPE__ __padding_size,
- void (*__constructor) (void *),
- void (*__destructor) (void *));
-
-extern "C"
-void *__cxa_vec_new2 (__SIZE_TYPE__ __element_count,
- __SIZE_TYPE__ __element_size,
- __SIZE_TYPE__ __padding_size,
- void (*__constructor) (void *),
- void (*__destructor) (void *),
- void *(*__alloc) (__SIZE_TYPE__),
- void (*__dealloc) (void *));
-
-extern "C"
-void *__cxa_vec_new3 (__SIZE_TYPE__ __element_count,
- __SIZE_TYPE__ __element_size,
- __SIZE_TYPE__ __padding_size,
- void (*__constructor) (void *),
- void (*__destructor) (void *),
- void *(*__alloc) (__SIZE_TYPE__),
- void (*__dealloc) (void *, __SIZE_TYPE__));
-
-/* construct array */
-extern "C"
-void __cxa_vec_ctor (void *__array_address,
- __SIZE_TYPE__ __element_count,
- __SIZE_TYPE__ __element_size,
- void (*__constructor) (void *),
- void (*__destructor) (void *));
-
-extern "C"
-void __cxa_vec_cctor (void *dest_array,
- void *src_array,
- __SIZE_TYPE__ element_count,
- __SIZE_TYPE__ element_size,
- void (*constructor) (void *, void *),
- void (*destructor) (void *));
-
-/* destruct array */
-extern "C"
-void __cxa_vec_dtor (void *__array_address,
- __SIZE_TYPE__ __element_count,
- __SIZE_TYPE__ __element_size,
- void (*__destructor) (void *));
-
-/* destruct and release array */
-extern "C"
-void __cxa_vec_delete (void *__array_address,
- __SIZE_TYPE__ __element_size,
- __SIZE_TYPE__ __padding_size,
- void (*__destructor) (void *));
-
-extern "C"
-void __cxa_vec_delete2 (void *__array_address,
- __SIZE_TYPE__ __element_size,
- __SIZE_TYPE__ __padding_size,
- void (*__destructor) (void *),
- void (*__dealloc) (void *));
-
-extern "C"
-void __cxa_vec_delete3 (void *__array_address,
- __SIZE_TYPE__ __element_size,
- __SIZE_TYPE__ __padding_size,
- void (*__destructor) (void *),
- void (*__dealloc) (void *, __SIZE_TYPE__));
-
-/* demangling routines */
-
-extern "C"
-char *__cxa_demangle (const char *__mangled_name,
- char *__output_buffer,
- __SIZE_TYPE__ *__length,
- int *__status);
-
-} /* namespace __cxxabiv1 */
-
-/* User programs should use the alias `abi'. */
+} // namespace __cxxabiv1
+
+/** @namespace abi
+ * @brief The cross-vendor C++ Application Binary Interface. A
+ * namespace alias to __cxxabiv1, but user programs should use the
+ * alias 'abi'.
+ *
+ * A brief overview of an ABI is given in the libstdc++ FAQ, question
+ * 5.8 (you may have a copy of the FAQ locally, or you can view the online
+ * version at http://gcc.gnu.org/onlinedocs/libstdc++/faq.html#5_8 ).
+ *
+ * GCC subscribes to a cross-vendor ABI for C++, sometimes
+ * called the IA64 ABI because it happens to be the native ABI for that
+ * platform. It is summarized at http://www.codesourcery.com/cxx-abi/
+ * along with the current specification.
+ *
+ * For users of GCC greater than or equal to 3.x, entry points are
+ * available in <cxxabi.h>, which notes, <em>'It is not normally
+ * necessary for user programs to include this header, or use the
+ * entry points directly. However, this header is available should
+ * that be needed.'</em>
+*/
namespace abi = __cxxabiv1;
-#else
-#endif /* __cplusplus */
+namespace __gnu_cxx
+{
+ /**
+ * @brief Exception thrown by __cxa_guard_acquire.
+ * @ingroup exceptions
+ *
+ * 6.7[stmt.dcl]/4: If control re-enters the declaration (recursively)
+ * while the object is being initialized, the behavior is undefined.
+ *
+ * Since we already have a library function to handle locking, we might
+ * as well check for this situation and throw an exception.
+ * We use the second byte of the guard variable to remember that we're
+ * in the middle of an initialization.
+ */
+ class recursive_init_error: public std::exception
+ {
+ public:
+ recursive_init_error() throw() { }
+ virtual ~recursive_init_error() throw ();
+ };
+}
+#endif // __cplusplus
+#pragma GCC visibility pop
-#endif /* __CXXABI_H */
+#endif // __CXXABI_H
git://gcc.gnu.org / gcc.git / blobdiff