spec.html revision 81b7ea7df48333715c0c57d5418c5383e3f5c950
1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" 2 "http://www.w3.org/TR/html4/strict.dtd"> 3<html> 4<head> 5 <title>libc++abi spec</title> 6</head> 7<body> 8 9<table border=1> 10<tr> 11<th rowspan=2>libc++abi Specification</th> 12<th colspan=3>Completed ?</th> 13</tr> 14 15<tr> 16<th>dawin</th><th>linux</th><th>arm</th> 17</tr> 18 19<tr> 20<td colspan=4 align="center">Memory management</td> 21</tr> 22 23<tr> 24<td> 25<p> 26<code>void* __cxa_allocate_exception(size_t thrown_size) throw();</code> 27</p> 28<blockquote> 29<p> 30<i>Effects:</i> Allocates memory to hold the exception to be thrown. 31<tt>thrown_size</tt> is the size of the exception object. Can allocate 32additional memory to hold private data. If memory can not be allocated, call 33<tt>std::terminate()</tt>. 34</p> 35<p> 36<i>Returns:</i> A pointer to the memory allocated for the exception object. 37</p> 38</blockquote> 39</td> 40<td>✓</td> 41<td>✓</td> 42<td>✓</td> 43</tr> 44 45<tr> 46<td> 47<p> 48<code>void __cxa_free_exception(void * thrown_exception) throw();</code> 49</p> 50<blockquote> 51<p> 52<i>Effects:</i> Frees memory allocated by <tt>__cxa_allocate_exception</tt>. 53</p> 54</blockquote> 55</td> 56<td>✓</td> 57<td>✓</td> 58<td>✓</td> 59</tr> 60 61<tr> 62<td colspan=4 align="center">Exception Handling</td> 63</tr> 64 65<tr> 66<td> 67<p> 68<code>void __cxa_throw(void* thrown_exception, struct std::type_info * tinfo, 69 void (*dest)(void*));</code> 70</p> 71<blockquote> 72<p> 73<i>Effects:</i> 74</p> 75</blockquote> 76</td> 77<td></td> 78<td></td> 79<td></td> 80</tr> 81 82<tr> 83<td> 84<p> 85<code>void* __cxa_get_exception_ptr(void* exceptionObject) throw();</code> 86</p> 87<blockquote> 88<p> 89<i>Returns:</i> The adjusted pointer to the exception object. (The adjusted 90pointer is typically computed by the personality routine during phase 1 and 91saved in the exception object.) 92</p> 93</blockquote> 94</td> 95<td></td> 96<td></td> 97<td></td> 98</tr> 99 100<tr> 101<td> 102<p> 103<code>void* __cxa_begin_catch(void* exceptionObject) throw();</code> 104</p> 105<blockquote> 106<p> 107<i>Effects:</i> 108</p> 109<ul> 110<li>Increment's the exception's handler count.</li> 111<li>Places the exception on the stack of currently-caught exceptions if it is 112not already there, linking the exception to the previous top of the stack.</li> 113<li>Decrements the uncaught_exception count.</li> 114</ul> 115<p> 116If the initialization of the catch parameter is trivial (e,g., there is no 117formal catch parameter, or the parameter has no copy constructor), the calls to 118<tt>__cxa_get_exception_ptr()</tt> and <tt>__cxa_begin_catch()</tt> may be 119combined into a single call to <tt>__cxa_begin_catch()</tt>. 120</p> 121<p> 122When the personality routine encounters a termination condition, it will call 123<tt>__cxa_begin_catch()</tt> to mark the exception as handled and then call 124<tt>terminate()</tt>, which shall not return to its caller. 125</p> 126<p> 127<i>Returns:</i> The adjusted pointer to the exception object. 128</p> 129</blockquote> 130</td> 131<td></td> 132<td></td> 133<td></td> 134</tr> 135 136<tr> 137<td> 138<p> 139<code>void __cxa_end_catch();</code> 140</p> 141<blockquote> 142<p> 143<i>Effects:</i> Locates the most recently caught exception and decrements its 144handler count. Removes the exception from the caughtÓexception stack, if the 145handler count goes to zero. Destroys the exception if the handler count goes to 146zero, and the exception was not re-thrown by throw. Collaboration between 147__cxa_rethrow() and __cxa_end_catch() is necessary to handle the last point. 148Though implementation-defined, one possibility is for __cxa_rethrow() to set a 149flag in the handlerCount member of the exception header to mark an exception 150being rethrown. 151</p> 152</blockquote> 153</td> 154<td></td> 155<td></td> 156<td></td> 157</tr> 158 159<tr> 160<td> 161<p> 162<code>std::type_info* __cxa_current_exception_type();</code> 163</p> 164<blockquote> 165<p> 166<i>Returns:</i> the type of the currently handled exception, or null if there 167are no caught exceptions. 168</p> 169</blockquote> 170</td> 171<td></td> 172<td></td> 173<td></td> 174</tr> 175 176<tr> 177<td> 178<p> 179<code>void __cxa_rethrow();</code> 180</p> 181<blockquote> 182<p> 183<i>Effects:</i> Marks the exception object on top of the caughtExceptions stack 184(in an implementation-defined way) as being rethrown. If the caughtExceptions 185stack is empty, it calls terminate() (see [C++FDIS] [except.throw], 15.1.8). It 186then returns to the handler that called it, which must call __cxa_end_catch(), 187perform any necessary cleanup, and finally call _Unwind_Resume() to continue 188unwinding. 189</p> 190</blockquote> 191</td> 192<td></td> 193<td></td> 194<td></td> 195</tr> 196 197<tr> 198<td> 199<p> 200<code>void* __cxa_current_primary_exception() throw();</code> 201</p> 202<blockquote> 203<p> 204<i>Effects:</i> Increments the ownership count of the currently handled 205exception (if any) by one. 206</p> 207<p> 208<i>Returns:</i> the type of the currently handled exception, or null if there 209are no caught exceptions. 210</p> 211</blockquote> 212</td> 213<td></td> 214<td></td> 215<td></td> 216</tr> 217 218<tr> 219<td> 220<p> 221<code>void __cxa_decrement_exception_refcount(void* primary_exception) throw();</code> 222</p> 223<blockquote> 224<p> 225<i>Effects:</i> Decrements the ownership count of the exception by 1, and on 226zero calls <tt>_Unwind_DeleteException</tt> with the exception object. 227</p> 228</blockquote> 229</td> 230<td></td> 231<td></td> 232<td></td> 233</tr> 234 235<tr> 236<td> 237<p> 238<code>__cxa_eh_globals* __cxa_get_globals() throw();</code> 239</p> 240<blockquote> 241<p> 242<i>Returns:</i> A pointer to the __cxa_eh_globals structure for the current 243thread, initializing it if necessary. 244</p> 245</blockquote> 246</td> 247<td>✓</td> 248<td>✓</td> 249<td>✓</td> 250</tr> 251 252<tr> 253<td> 254<p> 255<code>__cxa_eh_globals* __cxa_get_globals_fast() throw();</code> 256</p> 257<blockquote> 258<p> 259<i>Requires:</i> At least one prior call to __cxa_get_globals has been made from 260the current thread. 261</p> 262<p> 263<i>Returns:</i> A pointer to the __cxa_eh_globals structure for the current 264thread. 265</p> 266</blockquote> 267</td> 268<td>✓</td> 269<td>✓</td> 270<td>✓</td> 271</tr> 272 273<tr> 274<td> 275<p> 276<code>void __cxa_increment_exception_refcount(void* primary_exception) throw();</code> 277</p> 278<blockquote> 279<p> 280<i>Effects:</i> Increments the ownership count of the referenced exception. 281</p> 282</blockquote> 283</td> 284<td></td> 285<td></td> 286<td></td> 287</tr> 288 289<tr> 290<td> 291<p> 292<code>void __cxa_rethrow_primary_exception(void* primary_exception);</code> 293</p> 294<blockquote> 295<p> 296<i>Effects:</i> Implements <tt>std::rethrow_exception(exception_ptr p)</tt>. 297</p> 298</blockquote> 299</td> 300<td></td> 301<td></td> 302<td></td> 303</tr> 304 305<tr> 306<td> 307<p> 308<code>bool __cxa_uncaught_exception() throw();</code> 309</p> 310<blockquote> 311<p> 312<i>Effects:</i> 313</p> 314<p> 315<i>Returns:</i> 316</p> 317</blockquote> 318</td> 319<td></td> 320<td></td> 321<td></td> 322</tr> 323 324<tr> 325<td> 326<p> 327<code>_Unwind_Reason_Code __gxx_personality_v0 328 (int, _Unwind_Action, _Unwind_Exception_Class, 329 struct _Unwind_Exception *, struct _Unwind_Context *);</code> 330</p> 331<blockquote> 332<p> 333<i>Effects:</i> 334</p> 335<p> 336<i>Returns:</i> 337</p> 338</blockquote> 339</td> 340<td></td> 341<td></td> 342<td></td> 343</tr> 344 345<tr> 346<td colspan=4 align="center">Guard objects</td> 347</tr> 348 349<tr> 350<td> 351<p> 352<code>int __cxa_guard_acquire(uint64_t* guard_object);</code> 353</p> 354<blockquote> 355<p> 356<i>Effects:</i> This function is called before initialization takes place. If 357this function returns 1, either <code>__cxa_guard_release</code> or 358<code>__cxa_guard_abort</code> must be called with the same argument. The first 359byte of the <code>guard_object</code> is not modified by this function. 360</p> 361<p> 362On Darwin the implementation checks for deadlock. 363</p> 364<p> 365<i>Returns:</i> 1 if the initialization is not yet complete, otherwise 0. 366</p> 367</blockquote> 368</td> 369<td>✓</td> 370<td>✓</td> 371<td>✓</td> 372</tr> 373 374<tr> 375<td> 376<p> 377<code>void __cxa_guard_release(uint64_t*);</code> 378</p> 379<blockquote> 380<p> 381<i>Effects:</i> Sets the first byte of the guard object to a non-zero value. 382This function is called after initialization is complete. A thread-safe 383implementation will release the mutex acquired by __cxa_guard_acquire after 384setting the first byte of the guard object. 385</p> 386</blockquote> 387</td> 388<td>✓</td> 389<td>✓</td> 390<td>✓</td> 391</tr> 392 393<tr> 394<td> 395<p> 396<code>void __cxa_guard_abort(uint64_t*);</code> 397</p> 398<blockquote> 399<p> 400<i>Effects:</i> This function is called if the initialization terminates by 401throwing an exception. 402</p> 403</blockquote> 404</td> 405<td>✓</td> 406<td>✓</td> 407<td>✓</td> 408</tr> 409 410<tr> 411<td colspan=4 align="center">Vector construction and destruction</td> 412</tr> 413 414<tr> 415<td> 416<p> 417<code>void* __cxa_vec_new(size_t element_count, 418 size_t element_size, 419 size_t padding_size, 420 void (*constructor)(void*), 421 void (*destructor)(void*) );</code> 422</p> 423<blockquote> 424<p> 425<i>Effects:</i> 426</p> 427<p> 428<i>Returns:</i> 429</p> 430</blockquote> 431</td> 432<td>✓</td> 433<td>✓</td> 434<td>✓</td> 435</tr> 436 437<tr> 438<td> 439<p> 440<code>void* __cxa_vec_new2(size_t element_count, 441 size_t element_size, 442 size_t padding_size, 443 void (*constructor)(void*), 444 void (*destructor)(void*), 445 void* (*alloc)(size_t), 446 void (*dealloc)(void*) );</code> 447</p> 448<blockquote> 449<p> 450<i>Effects:</i> 451</p> 452<p> 453<i>Returns:</i> 454</p> 455</blockquote> 456</td> 457<td>✓</td> 458<td>✓</td> 459<td>✓</td> 460</tr> 461 462<tr> 463<td> 464<p> 465<code>void* __cxa_vec_new3(size_t element_count, 466 size_t element_size, 467 size_t padding_size, 468 void (*constructor)(void*), 469 void (*destructor)(void*), 470 void* (*alloc)(size_t), 471 void (*dealloc)(void*, size_t) );</code> 472</p> 473<blockquote> 474<p> 475<i>Effects:</i> 476</p> 477<p> 478<i>Returns:</i> 479</p> 480</blockquote> 481</td> 482<td>✓</td> 483<td>✓</td> 484<td>✓</td> 485</tr> 486 487<tr> 488<td> 489<p> 490<code>void __cxa_vec_ctor(void* array_address, 491 size_t element_count, 492 size_t element_size, 493 void (*constructor)(void*), 494 void (*destructor)(void*) );</code> 495</p> 496<blockquote> 497<p> 498<i>Effects:</i> 499</p> 500</blockquote> 501</td> 502<td>✓</td> 503<td>✓</td> 504<td>✓</td> 505</tr> 506 507<tr> 508<td> 509<p> 510<code>void __cxa_vec_dtor(void* array_address, 511 size_t element_count, 512 size_t element_size, 513 void (*destructor)(void*) );</code> 514</p> 515<blockquote> 516<p> 517<i>Effects:</i> 518</p> 519</blockquote> 520</td> 521<td>✓</td> 522<td>✓</td> 523<td>✓</td> 524</tr> 525 526<tr> 527<td> 528<p> 529<code>void __cxa_vec_cleanup(void* array_address, 530 size_t element_count, 531 size_t element_size, 532 void (*destructor)(void*) );</code> 533</p> 534<blockquote> 535<p> 536<i>Effects:</i> 537</p> 538</blockquote> 539</td> 540<td>✓</td> 541<td>✓</td> 542<td>✓</td> 543</tr> 544 545<tr> 546<td> 547<p> 548<code>void __cxa_vec_delete(void* array_address, 549 size_t element_size, 550 size_t padding_size, 551 void (*destructor)(void*) );</code> 552</p> 553<blockquote> 554<p> 555<i>Effects:</i> 556</p> 557</blockquote> 558</td> 559<td>✓</td> 560<td>✓</td> 561<td>✓</td> 562</tr> 563 564<tr> 565<td> 566<p> 567<code>void __cxa_vec_delete2(void* array_address, 568 size_t element_size, 569 size_t padding_size, 570 void (*destructor)(void*), 571 void (*dealloc)(void*) );</code> 572</p> 573<blockquote> 574<p> 575<i>Effects:</i> 576</p> 577</blockquote> 578</td> 579<td>✓</td> 580<td>✓</td> 581<td>✓</td> 582</tr> 583 584<tr> 585<td> 586<p> 587<code>void __cxa_vec_delete3(void* __array_address, 588 size_t element_size, 589 size_t padding_size, 590 void (*destructor)(void*), 591 void (*dealloc) (void*, size_t));</code> 592</p> 593<blockquote> 594<p> 595<i>Effects:</i> 596</p> 597</blockquote> 598</td> 599<td>✓</td> 600<td>✓</td> 601<td>✓</td> 602</tr> 603 604<tr> 605<td> 606<p> 607<code>void __cxa_vec_cctor(void* dest_array, 608 void* src_array, 609 size_t element_count, 610 size_t element_size, 611 void (*constructor) (void*, void*), 612 void (*destructor)(void*) );</code> 613</p> 614<blockquote> 615<p> 616<i>Effects:</i> 617</p> 618</blockquote> 619</td> 620<td>✓</td> 621<td>✓</td> 622<td>✓</td> 623</tr> 624 625<tr> 626<td colspan=4 align="center">Handlers</td> 627</tr> 628 629<tr> 630<td> 631<p> 632<code>void (*__cxa_new_handler)();</code> 633</p> 634<blockquote> 635<p> 636The currently installed new handler. 637</p> 638</blockquote> 639</td> 640<td></td> 641<td></td> 642<td></td> 643</tr> 644 645<tr> 646<td> 647<p> 648<code>void (*__cxa_terminate_handler)();</code> 649</p> 650<blockquote> 651<p> 652The currently installed terminate handler. 653</p> 654</blockquote> 655</td> 656<td></td> 657<td></td> 658<td></td> 659</tr> 660 661<tr> 662<td> 663<p> 664<code>void (*__cxa_unexpected_handler)();</code> 665</p> 666<blockquote> 667<p> 668<i>Effects:</i> 669</p> 670</blockquote> 671</td> 672<td></td> 673<td></td> 674<td></td> 675</tr> 676 677 678 679<tr> 680<td colspan=4 align="center">Utilities</td> 681</tr> 682 683<tr> 684<td> 685<p> 686<code>[[noreturn]] void __cxa_bad_cast()</code> 687</p> 688<blockquote> 689<p> 690<i>Effects:</i> Throws an exception of type <tt>bad_cast</tt>. 691</p> 692</blockquote> 693</td> 694<td>✓</td> 695<td>✓</td> 696<td>✓</td> 697</tr> 698 699<tr> 700<td> 701<p> 702<code>[[noreturn]] void __cxa_bad_typeid();</code> 703</p> 704<blockquote> 705<p> 706<i>Effects:</i> Throws an exception of type <tt>bad_typeid</tt>. 707</p> 708</blockquote> 709</td> 710<td>✓</td> 711<td>✓</td> 712<td>✓</td> 713</tr> 714 715<tr> 716<td> 717<p> 718<code>void __cxa_pure_virtual(void);</code> 719</p> 720<blockquote> 721<p> 722<i>Effects:</i> Called if the user calls a non-overridden pure virtual function, 723which has undefined behavior according to the C++ Standard. Ends the program. 724</p> 725</blockquote> 726</td> 727<td>✓</td> 728<td>✓</td> 729<td>✓</td> 730</tr> 731 732<tr> 733<td> 734<p> 735<code>void __cxa_call_unexpected (void*) __attribute__((noreturn));</code> 736</p> 737<blockquote> 738<p> 739<i>Effects:</i> Handles re-checking the exception specification if 740unexpectedHandler throws, and if <tt>bad_exception</tt> needs to be thrown. 741Called from the compiler. 742</p> 743</blockquote> 744</td> 745<td></td> 746<td></td> 747<td></td> 748</tr> 749 750<tr> 751<td> 752<p> 753<code>char* __cxa_demangle(const char* mangled_name, 754 char* output_buffer, 755 size_t* length, 756 int* status);</code> 757</p> 758<blockquote> 759<p> 760<i>Effects:</i> 761</p> 762<p> 763<i>Returns:</i> 764</p> 765</blockquote> 766</td> 767<td>✓</td> 768<td>✓</td> 769<td>✓</td> 770</tr> 771 772<tr> 773<td> 774<p> 775<code>void* 776 __dynamic_cast(const void* __src_ptr, 777 const __class_type_info* __src_type, 778 const __class_type_info* __dst_type, 779 ptrdiff_t __src2dst);</code> 780</p> 781<blockquote> 782<p> 783<i>Effects:</i> 784</p> 785<p> 786<i>Returns:</i> 787</p> 788</blockquote> 789</td> 790<td></td> 791<td></td> 792<td></td> 793</tr> 794 795</table> 796 797<!-- 798000000000000d570 (__DATA,__const) external typeinfo for char32_t 799000000000000cfd0 (__DATA,__const) external typeinfo for std::nullptr_t 800000000000000d520 (__DATA,__const) external typeinfo for char16_t 801000000000000d580 (__DATA,__const) external typeinfo for char32_t* 802000000000000cfe0 (__DATA,__const) external typeinfo for std::nullptr_t* 803000000000000d530 (__DATA,__const) external typeinfo for char16_t* 804000000000000d5a0 (__DATA,__const) external typeinfo for char32_t const* 805000000000000d000 (__DATA,__const) external typeinfo for std::nullptr_t const* 806000000000000d550 (__DATA,__const) external typeinfo for char16_t const* 807000000000000d190 (__DATA,__const) external typeinfo for signed char const* 808000000000000d050 (__DATA,__const) external typeinfo 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(__TEXT,__cstring) external typeinfo name for long double* 89900000000000093d4 (__TEXT,__cstring) external typeinfo name for float* 900000000000000937a (__TEXT,__cstring) external typeinfo name for unsigned char* 901000000000000939e (__TEXT,__cstring) external typeinfo name for int* 90200000000000093a7 (__TEXT,__cstring) external typeinfo name for unsigned int* 90300000000000093b0 (__TEXT,__cstring) external typeinfo name for long* 90400000000000093b9 (__TEXT,__cstring) external typeinfo name for unsigned long* 905000000000000938c (__TEXT,__cstring) external typeinfo name for short* 9060000000000009395 (__TEXT,__cstring) external typeinfo name for unsigned short* 907000000000000934a (__TEXT,__cstring) external typeinfo name for void* 9080000000000009368 (__TEXT,__cstring) external typeinfo name for wchar_t* 90900000000000093c2 (__TEXT,__cstring) external typeinfo name for long long* 91000000000000093cb (__TEXT,__cstring) external typeinfo name for unsigned long long* 9110000000000009381 (__TEXT,__cstring) external typeinfo name for signed char 912000000000000935d (__TEXT,__cstring) external typeinfo name for bool 913000000000000936f (__TEXT,__cstring) external typeinfo name for char 91400000000000093db (__TEXT,__cstring) external typeinfo name for double 91500000000000093e4 (__TEXT,__cstring) external typeinfo name for long double 91600000000000093d2 (__TEXT,__cstring) external typeinfo name for float 9170000000000009378 (__TEXT,__cstring) external typeinfo name for unsigned char 918000000000000939c (__TEXT,__cstring) external typeinfo name for int 91900000000000093a5 (__TEXT,__cstring) external typeinfo name for unsigned int 92000000000000093ae (__TEXT,__cstring) external typeinfo name for long 92100000000000093b7 (__TEXT,__cstring) external typeinfo name for unsigned long 922000000000000938a (__TEXT,__cstring) external typeinfo name for short 9230000000000009393 (__TEXT,__cstring) external typeinfo name for unsigned short 9240000000000009348 (__TEXT,__cstring) external typeinfo name for void 9250000000000009366 (__TEXT,__cstring) external typeinfo name for wchar_t 92600000000000093c0 (__TEXT,__cstring) external typeinfo name for long long 92700000000000093c9 (__TEXT,__cstring) external typeinfo name for unsigned long long 928000000000000ce30 (__DATA,__const) external vtable for __cxxabiv1::__enum_type_info 929000000000000cdb0 (__DATA,__const) external vtable for __cxxabiv1::__array_type_info 930000000000000cbe0 (__DATA,__const) external vtable for __cxxabiv1::__class_type_info 931000000000000ce70 (__DATA,__const) external vtable for __cxxabiv1::__pbase_type_info 932000000000000cec0 (__DATA,__const) external vtable for __cxxabiv1::__pointer_type_info 933000000000000cdf0 (__DATA,__const) external vtable for __cxxabiv1::__function_type_info 934000000000000cc40 (__DATA,__const) external vtable for __cxxabiv1::__si_class_type_info 935000000000000cca0 (__DATA,__const) external vtable for __cxxabiv1::__vmi_class_type_info 936000000000000cd70 (__DATA,__const) external vtable for __cxxabiv1::__fundamental_type_info 937000000000000cf10 (__DATA,__const) external vtable for __cxxabiv1::__pointer_to_member_type_info 938 939 (undefined) external ___stack_chk_fail (from libSystem) 940 (undefined) external ___stack_chk_guard (from libSystem) 941 (undefined) external ___stderrp (from libSystem) 942 (undefined) external ___strcat_chk (from libSystem) 943 (undefined) external _abort (from libSystem) 944 (undefined) external _calloc (from libSystem) 945 (undefined) external _dlsym (from libSystem) 946 (undefined) external _free (from libSystem) 947 (undefined) external _malloc (from libSystem) 948 (undefined) external _memcpy (from libSystem) 949 (undefined) external _pthread_getspecific (from libSystem) 950 (undefined) external _pthread_key_create (from libSystem) 951 (undefined) external _pthread_mutex_init (from libSystem) 952 (undefined) external _pthread_mutex_lock (from libSystem) 953 (undefined) external _pthread_mutex_unlock (from libSystem) 954 (undefined) external _pthread_mutexattr_init (from libSystem) 955 (undefined) external _pthread_mutexattr_settype (from libSystem) 956 (undefined) external _pthread_once (from libSystem) 957 (undefined) external _pthread_setspecific (from libSystem) 958 (undefined) external _realloc (from libSystem) 959 (undefined) external _strcmp (from libSystem) 960 (undefined) external _strcpy (from libSystem) 961 (undefined) external _strlen (from libSystem) 962 (undefined) external _strncmp (from libSystem) 963 (undefined) external _vasprintf (from libSystem) 964 (undefined) external _vfprintf (from libSystem) 965 (undefined) external dyld_stub_binder (from libSystem) 966 (undefined) external __Unwind_DeleteException (from libSystem) 967 (undefined) external __Unwind_GetIP (from libSystem) 968 (undefined) external __Unwind_GetLanguageSpecificData (from libSystem) 969 (undefined) external __Unwind_GetRegionStart (from libSystem) 970 (undefined) external __Unwind_RaiseException (from libSystem) 971 (undefined) external __Unwind_Resume_or_Rethrow (from libSystem) 972 (undefined) external __Unwind_SetGR (from libSystem) 973 (undefined) external __Unwind_SetIP (from libSystem) 974 (undefined) external ___bzero (from libSystem) 975 --> 976 977</body> 978</html> 979