Add libc++ and libc++abi to third-party.

third_party/libc++abi/include/cxxabi.h

+//===--------------------------- cxxabi.h ---------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef __CXXABI_H
+#define __CXXABI_H 
+
+/*
+ * This header provides the interface to the C++ ABI as defined at:
+ *       http://www.codesourcery.com/cxx-abi/
+ */
+
+#include <stddef.h>
+#include <stdint.h>
+
+#define _LIBCPPABI_VERSION 1001
+#define LIBCXXABI_NORETURN  __attribute__((noreturn))
+
+#ifdef __cplusplus
+
+namespace std {
+    class type_info; // forward declaration
+}
+
+
+// runtime routines use C calling conventions, but are in __cxxabiv1 namespace
+namespace __cxxabiv1 {  
+  extern "C"  {
+
+// 2.4.2 Allocating the Exception Object
+extern void * __cxa_allocate_exception(size_t thrown_size) throw();
+extern void __cxa_free_exception(void * thrown_exception) throw();
+
+// 2.4.3 Throwing the Exception Object
+extern LIBCXXABI_NORETURN void __cxa_throw(void * thrown_exception, 
+        std::type_info * tinfo, void (*dest)(void *));
+
+// 2.5.3 Exception Handlers
+extern void * __cxa_get_exception_ptr(void * exceptionObject) throw();
+extern void * __cxa_begin_catch(void * exceptionObject) throw();
+extern void __cxa_end_catch();
+extern std::type_info * __cxa_current_exception_type();
+
+// 2.5.4 Rethrowing Exceptions
+extern LIBCXXABI_NORETURN void __cxa_rethrow();
+
+
+
+// 2.6 Auxiliary Runtime APIs
+extern LIBCXXABI_NORETURN void __cxa_bad_cast(void);
+extern LIBCXXABI_NORETURN void __cxa_bad_typeid(void);
+
+
+
+// 3.2.6 Pure Virtual Function API
+extern LIBCXXABI_NORETURN void __cxa_pure_virtual(void);
+
+// 3.2.7 Deleted Virtual Function API
+extern LIBCXXABI_NORETURN void __cxa_deleted_virtual(void);
+
+// 3.3.2 One-time Construction API
+#if __arm__
+extern int  __cxa_guard_acquire(uint32_t*);
+extern void __cxa_guard_release(uint32_t*);
+extern void __cxa_guard_abort(uint32_t*);
+#else
+extern int  __cxa_guard_acquire(uint64_t*);
+extern void __cxa_guard_release(uint64_t*);
+extern void __cxa_guard_abort(uint64_t*);
+#endif
+
+// 3.3.3 Array Construction and Destruction API
+extern void* __cxa_vec_new(size_t element_count, 
+                           size_t element_size, 
+                           size_t padding_size, 
+                           void (*constructor)(void*),
+                           void (*destructor)(void*) );
+
+extern void* __cxa_vec_new2(size_t element_count,
+                            size_t element_size, 
+                            size_t padding_size,
+                            void  (*constructor)(void*),
+                            void  (*destructor)(void*),
+                            void* (*alloc)(size_t), 
+                            void  (*dealloc)(void*) );
+
+extern void* __cxa_vec_new3(size_t element_count,
+                            size_t element_size, 
+                            size_t padding_size,
+                            void  (*constructor)(void*),
+                            void  (*destructor)(void*),
+                            void* (*alloc)(size_t), 
+                            void  (*dealloc)(void*, size_t) );
+  
+extern void __cxa_vec_ctor(void*  array_address, 
+                           size_t element_count,
+                           size_t element_size, 
+                           void (*constructor)(void*),
+                           void (*destructor)(void*) );
+
+
+extern void __cxa_vec_dtor(void*  array_address, 
+                           size_t element_count,
+                           size_t element_size, 
+                           void (*destructor)(void*) );
+
+
+extern void __cxa_vec_cleanup(void* array_address, 
+                             size_t element_count,
+                             size_t element_size, 
+                             void  (*destructor)(void*) );
+
+
+extern void __cxa_vec_delete(void*  array_address, 
+                             size_t element_size, 
+                             size_t padding_size, 
+                             void  (*destructor)(void*) );
+
+
+extern void __cxa_vec_delete2(void* array_address, 
+                             size_t element_size, 
+                             size_t padding_size, 
+                             void  (*destructor)(void*),
+                             void  (*dealloc)(void*) );
+  
+
+extern void __cxa_vec_delete3(void* __array_address, 
+                             size_t element_size, 
+                             size_t padding_size, 
+                             void  (*destructor)(void*),
+                             void  (*dealloc) (void*, size_t));
+
+
+extern void __cxa_vec_cctor(void*  dest_array, 
+                            void*  src_array, 
+                            size_t element_count, 
+                            size_t element_size, 
+                            void  (*constructor) (void*, void*), 
+                            void  (*destructor)(void*) );
+
+
+// 3.3.5.3 Runtime API
+extern int __cxa_atexit(void (*f)(void*), void* p, void* d);
+extern int __cxa_finalize(void*);
+
+
+// 3.4 Demangler API
+extern char* __cxa_demangle(const char* mangled_name, 
+                            char*       output_buffer,
+                            size_t*     length, 
+                            int*        status);
+
+// Apple additions to support C++ 0x exception_ptr class
+// These are primitives to wrap a smart pointer around an exception object
+extern void * __cxa_current_primary_exception() throw();
+extern void __cxa_rethrow_primary_exception(void* primary_exception);
+extern void __cxa_increment_exception_refcount(void* primary_exception) throw();
+extern void __cxa_decrement_exception_refcount(void* primary_exception) throw();
+
+// Apple addition to support std::uncaught_exception()
+extern bool __cxa_uncaught_exception() throw();
+
+  } // extern "C"
+} // namespace __cxxabiv1
+
+#endif // __cplusplus
+
+namespace abi = __cxxabiv1;
+
+#endif // __CXXABI_H