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[PATCH RFC] do not throw in std::make_exception_ptr
- From: Gleb Natapov <gleb at scylladb dot com>
- To: gcc-patches at gcc dot gnu dot org, ibstdc++ at gcc dot gnu dot org
- Date: Thu, 28 Jul 2016 10:17:16 +0300
- Subject: [PATCH RFC] do not throw in std::make_exception_ptr
- Authentication-results: sourceware.org; auth=none
Here is my attempt to fix
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68297. The resulting patch
is a little bit long because I had to split <exception> and cxxabi.h
include files. The former had to be split due to circular dependency
that formed after including <typeinfo> in exception_ptr.h and the later
is because of inability to include cxxabi.h in exception_ptr.h because
it makes libstdc++/30586 to reappear again.
Comments are welcome.
diff --git a/libcilkrts/runtime/except-gcc.h b/libcilkrts/runtime/except-gcc.h
index 3ef4061..113fade 100644
--- a/libcilkrts/runtime/except-gcc.h
+++ b/libcilkrts/runtime/except-gcc.h
@@ -65,7 +65,7 @@
#endif
#include <cilk/common.h>
-#include <exception>
+#include <bits/exception.h>
#include <typeinfo>
struct __cxa_exception;
diff --git a/libstdc++-v3/config/abi/pre/gnu-versioned-namespace.ver b/libstdc++-v3/config/abi/pre/gnu-versioned-namespace.ver
index 8304dee..65866a3 100644
--- a/libstdc++-v3/config/abi/pre/gnu-versioned-namespace.ver
+++ b/libstdc++-v3/config/abi/pre/gnu-versioned-namespace.ver
@@ -179,6 +179,7 @@ CXXABI_2.0 {
__cxa_free_exception;
__cxa_free_dependent_exception;
__cxa_get_exception_ptr;
+ __cxa_init_primary_exception;
__cxa_get_globals;
__cxa_get_globals_fast;
__cxa_guard_abort;
@@ -205,6 +206,7 @@ CXXABI_2.0 {
# std::exception_ptr
_ZNSt15__exception_ptr13exception_ptrC1Ev;
_ZNSt15__exception_ptr13exception_ptrC2Ev;
+ _ZNSt15__exception_ptr13exception_ptrC1EPv;
_ZNSt15__exception_ptr13exception_ptrC1ERKS0_;
_ZNSt15__exception_ptr13exception_ptrC2ERKS0_;
_ZNSt15__exception_ptr13exception_ptrC1EMS0_FvvE;
diff --git a/libstdc++-v3/config/abi/pre/gnu.ver b/libstdc++-v3/config/abi/pre/gnu.ver
index 5c6b0fe..2425dca 100644
--- a/libstdc++-v3/config/abi/pre/gnu.ver
+++ b/libstdc++-v3/config/abi/pre/gnu.ver
@@ -2152,6 +2152,13 @@ CXXABI_1.3.10 {
} CXXABI_1.3.9;
+CXXABI_1.3.11 {
+
+ __cxa_init_primary_exception;
+ _ZNSt15__exception_ptr13exception_ptrC1EPv;
+
+} CXXABI_1.3.10;
+
# Symbols in the support library (libsupc++) supporting transactional memory.
CXXABI_TM_1 {
diff --git a/libstdc++-v3/include/Makefile.am b/libstdc++-v3/include/Makefile.am
index 4bc3354..8eee88b 100644
--- a/libstdc++-v3/include/Makefile.am
+++ b/libstdc++-v3/include/Makefile.am
@@ -201,8 +201,10 @@ bits_sup_srcdir = ${glibcxx_srcdir}/libsupc++
bits_sup_headers = \
${bits_sup_srcdir}/atomic_lockfree_defines.h \
${bits_sup_srcdir}/cxxabi_forced.h \
+ ${bits_sup_srcdir}/cxxabiv1.h \
${bits_sup_srcdir}/exception_defines.h \
${bits_sup_srcdir}/exception_ptr.h \
+ ${bits_sup_srcdir}/exception.h \
${bits_sup_srcdir}/hash_bytes.h \
${bits_sup_srcdir}/nested_exception.h
diff --git a/libstdc++-v3/include/Makefile.in b/libstdc++-v3/include/Makefile.in
index 1f255a9..18e6073 100644
--- a/libstdc++-v3/include/Makefile.in
+++ b/libstdc++-v3/include/Makefile.in
@@ -491,8 +491,10 @@ bits_sup_srcdir = ${glibcxx_srcdir}/libsupc++
bits_sup_headers = \
${bits_sup_srcdir}/atomic_lockfree_defines.h \
${bits_sup_srcdir}/cxxabi_forced.h \
+ ${bits_sup_srcdir}/cxxabiv1.h \
${bits_sup_srcdir}/exception_defines.h \
${bits_sup_srcdir}/exception_ptr.h \
+ ${bits_sup_srcdir}/exception.h \
${bits_sup_srcdir}/hash_bytes.h \
${bits_sup_srcdir}/nested_exception.h
diff --git a/libstdc++-v3/libsupc++/Makefile.am b/libstdc++-v3/libsupc++/Makefile.am
index b45b5ae..644e51e 100644
--- a/libstdc++-v3/libsupc++/Makefile.am
+++ b/libstdc++-v3/libsupc++/Makefile.am
@@ -34,8 +34,8 @@ std_HEADERS = \
cxxabi.h exception initializer_list new typeinfo
bits_HEADERS = \
- atomic_lockfree_defines.h cxxabi_forced.h \
- exception_defines.h exception_ptr.h hash_bytes.h nested_exception.h
+ atomic_lockfree_defines.h cxxabi_forced.h cxxabiv1.h\
+ exception_defines.h exception_ptr.h exception.h hash_bytes.h nested_exception.h
headers = $(std_HEADERS) $(bits_HEADERS)
diff --git a/libstdc++-v3/libsupc++/Makefile.in b/libstdc++-v3/libsupc++/Makefile.in
index f3648ac..bbb837a 100644
--- a/libstdc++-v3/libsupc++/Makefile.in
+++ b/libstdc++-v3/libsupc++/Makefile.in
@@ -394,8 +394,8 @@ std_HEADERS = \
cxxabi.h exception initializer_list new typeinfo
bits_HEADERS = \
- atomic_lockfree_defines.h cxxabi_forced.h \
- exception_defines.h exception_ptr.h hash_bytes.h nested_exception.h
+ atomic_lockfree_defines.h cxxabi_forced.h cxxabiv1.h \
+ exception_defines.h exception_ptr.h exception.h hash_bytes.h nested_exception.h
headers = $(std_HEADERS) $(bits_HEADERS)
@GLIBCXX_HOSTED_TRUE@c_sources = \
diff --git a/libstdc++-v3/libsupc++/cxxabi.h b/libstdc++-v3/libsupc++/cxxabi.h
index 11ff9e5..a33cc90 100644
--- a/libstdc++-v3/libsupc++/cxxabi.h
+++ b/libstdc++-v3/libsupc++/cxxabi.h
@@ -45,622 +45,11 @@
#pragma GCC visibility push(default)
-#include <stddef.h>
-#include <bits/c++config.h>
-#include <bits/cxxabi_tweaks.h>
#include <bits/cxxabi_forced.h>
-
-#ifndef _GLIBCXX_CDTOR_CALLABI
-#define _GLIBCXX_CDTOR_CALLABI
-#endif
-
-#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
+#include <bits/cxxabiv1.h>
#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) { }
-
- virtual
- ~__fundamental_type_info();
- };
-
- // 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) { }
-
- virtual
- ~__array_type_info();
- };
-
- // 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();
-
- protected:
- // Implementation defined member function.
- virtual bool
- __is_function_p() const;
- };
-
- // 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)
- { }
-
- 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
- };
-
- 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;
- };
-
- 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 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) { }
-
-
- virtual
- ~__pointer_type_info();
-
- 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;
- };
-
- // 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
- { return __offset_flags & __public_mask; }
-
- 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
- {
- 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;
- };
-
- // Type information for a class with a single non-virtual base.
- class __si_class_type_info : public __class_type_info
- {
- 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;
- };
-
- // 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;
- };
-
- // 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__));
-
- // Allocate memory for the primary exception plus the thrown object.
- void*
- __cxa_allocate_exception(size_t) _GLIBCXX_NOTHROW;
-
- // 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;
-
- 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
- };
-
-} // namespace __cxxabiv1
-
/** @namespace abi
* @brief The cross-vendor C++ Application Binary Interface. A
* namespace alias to __cxxabiv1, but user programs should use the
diff --git a/libstdc++-v3/libsupc++/cxxabiv1.h b/libstdc++-v3/libsupc++/cxxabiv1.h
new file mode 100644
index 0000000..7f67da5
--- /dev/null
+++ b/libstdc++-v3/libsupc++/cxxabiv1.h
@@ -0,0 +1,631 @@
+#ifndef _CXXABIV1_H
+#define _CXXABIV1_H
+
+#pragma GCC system_header
+
+#include <stddef.h>
+#include <bits/c++config.h>
+#include <bits/cxxabi_tweaks.h>
+
+#ifndef _GLIBCXX_CDTOR_CALLABI
+#define _GLIBCXX_CDTOR_CALLABI
+#define _GLIBCXX_HAVE_CDTOR_CALLABI 0
+#else
+#define _GLIBCXX_HAVE_CDTOR_CALLABI 1
+#endif
+
+#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
+
+#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) { }
+
+ virtual
+ ~__fundamental_type_info();
+ };
+
+ // 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) { }
+
+ virtual
+ ~__array_type_info();
+ };
+
+ // 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();
+
+ protected:
+ // Implementation defined member function.
+ virtual bool
+ __is_function_p() const;
+ };
+
+ // 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)
+ { }
+
+ 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
+ };
+
+ 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;
+ };
+
+ 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 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) { }
+
+
+ virtual
+ ~__pointer_type_info();
+
+ 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;
+ };
+
+ // 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
+ { return __offset_flags & __public_mask; }
+
+ 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
+ {
+ 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;
+ };
+
+ // Type information for a class with a single non-virtual base.
+ class __si_class_type_info : public __class_type_info
+ {
+ 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;
+ };
+
+ // 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;
+ };
+
+ // 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__));
+
+ // Allocate memory for the primary exception plus the thrown object.
+ void*
+ __cxa_allocate_exception(size_t) _GLIBCXX_NOTHROW;
+
+ // 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;
+
+ 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;
+
+ // Initialize exception
+ __cxa_refcounted_exception*
+ __cxa_init_primary_exception(void *object, const std::type_info *tinfo,
+ void (_GLIBCXX_CDTOR_CALLABI *dest) (void *)) _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
+ };
+
+} // namespace __cxxabiv1
+
+#endif // __cplusplus
+
+#endif // _CXXABIV1_H
diff --git a/libstdc++-v3/libsupc++/eh_throw.cc b/libstdc++-v3/libsupc++/eh_throw.cc
index 9aac218..b368f8a 100644
--- a/libstdc++-v3/libsupc++/eh_throw.cc
+++ b/libstdc++-v3/libsupc++/eh_throw.cc
@@ -55,6 +55,22 @@ __gxx_exception_cleanup (_Unwind_Reason_Code code, _Unwind_Exception *exc)
#endif
}
+extern "C" __cxa_refcounted_exception*
+__cxxabiv1::__cxa_init_primary_exception(void *obj, const std::type_info *tinfo,
+ void (_GLIBCXX_CDTOR_CALLABI *dest) (void *))
+{
+ __cxa_refcounted_exception *header
+ = __get_refcounted_exception_header_from_obj (obj);
+ header->referenceCount = 0;
+ header->exc.exceptionType = tinfo;
+ header->exc.exceptionDestructor = dest;
+ header->exc.unexpectedHandler = std::get_unexpected ();
+ header->exc.terminateHandler = std::get_terminate ();
+ __GXX_INIT_PRIMARY_EXCEPTION_CLASS(header->exc.unwindHeader.exception_class);
+ header->exc.unwindHeader.exception_cleanup = __gxx_exception_cleanup;
+
+ return header;
+}
extern "C" void
__cxxabiv1::__cxa_throw (void *obj, std::type_info *tinfo,
@@ -64,17 +80,10 @@ __cxxabiv1::__cxa_throw (void *obj, std::type_info *tinfo,
__cxa_eh_globals *globals = __cxa_get_globals ();
globals->uncaughtExceptions += 1;
-
// Definitely a primary.
- __cxa_refcounted_exception *header
- = __get_refcounted_exception_header_from_obj (obj);
+ __cxa_refcounted_exception *header =
+ __cxa_init_primary_exception(obj, tinfo, dest);
header->referenceCount = 1;
- header->exc.exceptionType = tinfo;
- header->exc.exceptionDestructor = dest;
- header->exc.unexpectedHandler = std::get_unexpected ();
- header->exc.terminateHandler = std::get_terminate ();
- __GXX_INIT_PRIMARY_EXCEPTION_CLASS(header->exc.unwindHeader.exception_class);
- header->exc.unwindHeader.exception_cleanup = __gxx_exception_cleanup;
#ifdef __USING_SJLJ_EXCEPTIONS__
_Unwind_SjLj_RaiseException (&header->exc.unwindHeader);
diff --git a/libstdc++-v3/libsupc++/exception b/libstdc++-v3/libsupc++/exception
index 63631f6..6f8b596 100644
--- a/libstdc++-v3/libsupc++/exception
+++ b/libstdc++-v3/libsupc++/exception
@@ -34,135 +34,7 @@
#pragma GCC visibility push(default)
-#include <bits/c++config.h>
-#include <bits/atomic_lockfree_defines.h>
-
-extern "C++" {
-
-namespace std
-{
- /**
- * @defgroup exceptions Exceptions
- * @ingroup diagnostics
- *
- * Classes and functions for reporting errors via exception classes.
- * @{
- */
-
- /**
- * @brief Base class for all library exceptions.
- *
- * This is the base class for all exceptions thrown by the standard
- * library, and by certain language expressions. You are free to derive
- * your own %exception classes, or use a different hierarchy, or to
- * throw non-class data (e.g., fundamental types).
- */
- class exception
- {
- public:
- exception() _GLIBCXX_USE_NOEXCEPT { }
- virtual ~exception() _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_USE_NOEXCEPT;
-
- /** Returns a C-style character string describing the general cause
- * of the current error. */
- virtual const char*
- what() const _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_USE_NOEXCEPT;
- };
-
- /** If an %exception is thrown which is not listed in a function's
- * %exception specification, one of these may be thrown. */
- class bad_exception : public exception
- {
- public:
- bad_exception() _GLIBCXX_USE_NOEXCEPT { }
-
- // This declaration is not useless:
- // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118
- virtual ~bad_exception() _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_USE_NOEXCEPT;
-
- // See comment in eh_exception.cc.
- virtual const char*
- what() const _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_USE_NOEXCEPT;
- };
-
- /// If you write a replacement %terminate handler, it must be of this type.
- typedef void (*terminate_handler) ();
-
- /// If you write a replacement %unexpected handler, it must be of this type.
- typedef void (*unexpected_handler) ();
-
- /// Takes a new handler function as an argument, returns the old function.
- terminate_handler set_terminate(terminate_handler) _GLIBCXX_USE_NOEXCEPT;
-
-#if __cplusplus >= 201103L
- /// Return the current terminate handler.
- terminate_handler get_terminate() noexcept;
-#endif
-
- /** The runtime will call this function if %exception handling must be
- * abandoned for any reason. It can also be called by the user. */
- void terminate() _GLIBCXX_USE_NOEXCEPT __attribute__ ((__noreturn__));
-
- /// Takes a new handler function as an argument, returns the old function.
- unexpected_handler set_unexpected(unexpected_handler) _GLIBCXX_USE_NOEXCEPT;
-
-#if __cplusplus >= 201103L
- /// Return the current unexpected handler.
- unexpected_handler get_unexpected() noexcept;
-#endif
-
- /** The runtime will call this function if an %exception is thrown which
- * violates the function's %exception specification. */
- void unexpected() __attribute__ ((__noreturn__));
-
- /** [18.6.4]/1: 'Returns true after completing evaluation of a
- * throw-expression until either completing initialization of the
- * exception-declaration in the matching handler or entering @c unexpected()
- * due to the throw; or after entering @c terminate() for any reason
- * other than an explicit call to @c terminate(). [Note: This includes
- * stack unwinding [15.2]. end note]'
- *
- * 2: 'When @c uncaught_exception() is true, throwing an
- * %exception can result in a call of @c terminate()
- * (15.5.1).'
- */
- bool uncaught_exception() _GLIBCXX_USE_NOEXCEPT __attribute__ ((__pure__));
-
-#if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++98
-#define __cpp_lib_uncaught_exceptions 201411
- /// The number of uncaught exceptions.
- int uncaught_exceptions() _GLIBCXX_USE_NOEXCEPT __attribute__ ((__pure__));
-#endif
-
- // @} group exceptions
-} // namespace std
-
-namespace __gnu_cxx
-{
-_GLIBCXX_BEGIN_NAMESPACE_VERSION
-
- /**
- * @brief A replacement for the standard terminate_handler which
- * prints more information about the terminating exception (if any)
- * on stderr.
- *
- * @ingroup exceptions
- *
- * Call
- * @code
- * std::set_terminate(__gnu_cxx::__verbose_terminate_handler)
- * @endcode
- * to use. For more info, see
- * http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt02ch06s02.html
- *
- * In 3.4 and later, this is on by default.
- */
- void __verbose_terminate_handler();
-
-_GLIBCXX_END_NAMESPACE_VERSION
-} // namespace
-
-} // extern "C++"
+#include <bits/exception.h>
#pragma GCC visibility pop
diff --git a/libstdc++-v3/libsupc++/exception.h b/libstdc++-v3/libsupc++/exception.h
new file mode 100644
index 0000000..bc1b8c8
--- /dev/null
+++ b/libstdc++-v3/libsupc++/exception.h
@@ -0,0 +1,163 @@
+// Exception Handling support header for -*- C++ -*-
+
+// Copyright (C) 1995-2016 Free Software Foundation, Inc.
+//
+// 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 3, or (at your option)
+// any later version.
+//
+// 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.
+//
+// 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/>.
+
+/** @file exception
+ * This is a Standard C++ Library header.
+ */
+
+#ifndef __EXCEPTION_H
+#define __EXCEPTION_H
+
+#include <bits/c++config.h>
+#include <bits/atomic_lockfree_defines.h>
+
+extern "C++" {
+
+namespace std
+{
+ /**
+ * @defgroup exceptions Exceptions
+ * @ingroup diagnostics
+ *
+ * Classes and functions for reporting errors via exception classes.
+ * @{
+ */
+
+ /**
+ * @brief Base class for all library exceptions.
+ *
+ * This is the base class for all exceptions thrown by the standard
+ * library, and by certain language expressions. You are free to derive
+ * your own %exception classes, or use a different hierarchy, or to
+ * throw non-class data (e.g., fundamental types).
+ */
+ class exception
+ {
+ public:
+ exception() _GLIBCXX_USE_NOEXCEPT { }
+ virtual ~exception() _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_USE_NOEXCEPT;
+
+ /** Returns a C-style character string describing the general cause
+ * of the current error. */
+ virtual const char*
+ what() const _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_USE_NOEXCEPT;
+ };
+
+ /** If an %exception is thrown which is not listed in a function's
+ * %exception specification, one of these may be thrown. */
+ class bad_exception : public exception
+ {
+ public:
+ bad_exception() _GLIBCXX_USE_NOEXCEPT { }
+
+ // This declaration is not useless:
+ // http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_6.html#SEC118
+ virtual ~bad_exception() _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_USE_NOEXCEPT;
+
+ // See comment in eh_exception.cc.
+ virtual const char*
+ what() const _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_USE_NOEXCEPT;
+ };
+
+ /// If you write a replacement %terminate handler, it must be of this type.
+ typedef void (*terminate_handler) ();
+
+ /// If you write a replacement %unexpected handler, it must be of this type.
+ typedef void (*unexpected_handler) ();
+
+ /// Takes a new handler function as an argument, returns the old function.
+ terminate_handler set_terminate(terminate_handler) _GLIBCXX_USE_NOEXCEPT;
+
+#if __cplusplus >= 201103L
+ /// Return the current terminate handler.
+ terminate_handler get_terminate() noexcept;
+#endif
+
+ /** The runtime will call this function if %exception handling must be
+ * abandoned for any reason. It can also be called by the user. */
+ void terminate() _GLIBCXX_USE_NOEXCEPT __attribute__ ((__noreturn__));
+
+ /// Takes a new handler function as an argument, returns the old function.
+ unexpected_handler set_unexpected(unexpected_handler) _GLIBCXX_USE_NOEXCEPT;
+
+#if __cplusplus >= 201103L
+ /// Return the current unexpected handler.
+ unexpected_handler get_unexpected() noexcept;
+#endif
+
+ /** The runtime will call this function if an %exception is thrown which
+ * violates the function's %exception specification. */
+ void unexpected() __attribute__ ((__noreturn__));
+
+ /** [18.6.4]/1: 'Returns true after completing evaluation of a
+ * throw-expression until either completing initialization of the
+ * exception-declaration in the matching handler or entering @c unexpected()
+ * due to the throw; or after entering @c terminate() for any reason
+ * other than an explicit call to @c terminate(). [Note: This includes
+ * stack unwinding [15.2]. end note]'
+ *
+ * 2: 'When @c uncaught_exception() is true, throwing an
+ * %exception can result in a call of @c terminate()
+ * (15.5.1).'
+ */
+ bool uncaught_exception() _GLIBCXX_USE_NOEXCEPT __attribute__ ((__pure__));
+
+#if __cplusplus > 201402L || !defined(__STRICT_ANSI__) // c++1z or gnu++98
+#define __cpp_lib_uncaught_exceptions 201411
+ /// The number of uncaught exceptions.
+ int uncaught_exceptions() _GLIBCXX_USE_NOEXCEPT __attribute__ ((__pure__));
+#endif
+
+ // @} group exceptions
+} // namespace std
+
+namespace __gnu_cxx
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+ /**
+ * @brief A replacement for the standard terminate_handler which
+ * prints more information about the terminating exception (if any)
+ * on stderr.
+ *
+ * @ingroup exceptions
+ *
+ * Call
+ * @code
+ * std::set_terminate(__gnu_cxx::__verbose_terminate_handler)
+ * @endcode
+ * to use. For more info, see
+ * http://gcc.gnu.org/onlinedocs/libstdc++/manual/bk01pt02ch06s02.html
+ *
+ * In 3.4 and later, this is on by default.
+ */
+ void __verbose_terminate_handler();
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+} // extern "C++"
+
+#endif
diff --git a/libstdc++-v3/libsupc++/exception_ptr.h b/libstdc++-v3/libsupc++/exception_ptr.h
index 783e539..6127b00 100644
--- a/libstdc++-v3/libsupc++/exception_ptr.h
+++ b/libstdc++-v3/libsupc++/exception_ptr.h
@@ -35,6 +35,9 @@
#include <bits/c++config.h>
#include <bits/exception_defines.h>
+#include <typeinfo>
+#include <new>
+#include <bits/cxxabiv1.h>
#if ATOMIC_INT_LOCK_FREE < 2
# error This platform does not support exception propagation.
@@ -62,6 +65,8 @@ namespace std
* value.
*/
exception_ptr current_exception() _GLIBCXX_USE_NOEXCEPT;
+ template<typename _Ex>
+ exception_ptr make_exception_ptr(_Ex) _GLIBCXX_USE_NOEXCEPT;
/// Throw the object pointed to by the exception_ptr.
void rethrow_exception(exception_ptr) __attribute__ ((__noreturn__));
@@ -87,6 +92,8 @@ namespace std
friend exception_ptr std::current_exception() _GLIBCXX_USE_NOEXCEPT;
friend void std::rethrow_exception(exception_ptr);
+ template<typename _Ex>
+ friend exception_ptr std::make_exception_ptr(_Ex) _GLIBCXX_USE_NOEXCEPT;
public:
exception_ptr() _GLIBCXX_USE_NOEXCEPT;
@@ -162,8 +169,12 @@ namespace std
swap(exception_ptr& __lhs, exception_ptr& __rhs)
{ __lhs.swap(__rhs); }
- } // namespace __exception_ptr
+ template<typename _Ex>
+ static void dest_thunk(void* x) {
+ reinterpret_cast<_Ex*>(x)->_Ex::~_Ex();
+ }
+ } // namespace __exception_ptr
/// Obtain an exception_ptr pointing to a copy of the supplied object.
template<typename _Ex>
@@ -173,7 +184,15 @@ namespace std
#if __cpp_exceptions
try
{
- throw __ex;
+#if __cpp_rtti && !_GLIBCXX_HAVE_CDTOR_CALLABI
+ void *e = __cxxabiv1::__cxa_allocate_exception(sizeof(_Ex));
+ (void)__cxxabiv1::__cxa_init_primary_exception(e, &typeid(__ex),
+ __exception_ptr::dest_thunk<_Ex>);
+ new (e) _Ex(__ex);
+ return exception_ptr(e);
+#else
+ throw __ex;
+#endif
}
catch(...)
{
diff --git a/libstdc++-v3/libsupc++/typeinfo b/libstdc++-v3/libsupc++/typeinfo
index baedf01..1c5ccc5 100644
--- a/libstdc++-v3/libsupc++/typeinfo
+++ b/libstdc++-v3/libsupc++/typeinfo
@@ -31,7 +31,7 @@
#pragma GCC system_header
-#include <exception>
+#include <bits/exception.h>
#if __cplusplus >= 201103L
#include <bits/hash_bytes.h>
#endif
diff --git a/libstdc++-v3/libsupc++/unwind-cxx.h b/libstdc++-v3/libsupc++/unwind-cxx.h
index 9121934..11da4a7 100644
--- a/libstdc++-v3/libsupc++/unwind-cxx.h
+++ b/libstdc++-v3/libsupc++/unwind-cxx.h
@@ -31,7 +31,7 @@
// Level 2: C++ ABI
#include <typeinfo>
-#include <exception>
+#include <bits/exception.h>
#include <cstddef>
#include "unwind.h"
#include <bits/atomic_word.h>
@@ -62,7 +62,7 @@ namespace __cxxabiv1
struct __cxa_exception
{
// Manage the exception object itself.
- std::type_info *exceptionType;
+ const std::type_info *exceptionType;
void (_GLIBCXX_CDTOR_CALLABI *exceptionDestructor)(void *);
// The C++ standard has entertaining rules wrt calling set_terminate
--
Gleb.