neptards
/
libcxxabi
forked from mirror/libcxxabi
Code Issues Pull Requests Releases Wiki Activity

Commit Graph

  • 53cf764ab4 Add version number to this library so we can recognize when we're using it. Howard Hinnant 2012-02-02 20:47:05 +0000
  • e35bb60157 There's a crasher I need to track down, occurring at -O0. Howard Hinnant 2012-02-02 20:42:31 +0000
  • cf95babcc4 added const nullptr tests Marshall Clow 2012-02-01 22:27:24 +0000
  • 61a88d8800 removed duplicated tests - Howard was quicker than me. Marshall Clow 2012-02-01 21:49:28 +0000
  • c9577b1a2b Added tests for catching const/non-const nullptr Marshall Clow 2012-02-01 21:37:24 +0000
  • 4c3bdd6f62 Add test for pointer qualification conversion. Howard Hinnant 2012-02-01 21:25:40 +0000
  • 0550d57ec1 Changed a TODO to a 'maybe some time in the future'. Howard Hinnant 2012-02-01 21:12:07 +0000
  • 9f54f7a888 Removed DEBUG statements. Howard Hinnant 2012-02-01 21:08:30 +0000
  • 575160dca0 Remove a TODO regarding where some can_catch are implemented. I opted to make can_catch pure virtual in the top __shim_type_info, and have each sub-class implement its own. There are some repeated definitions, but they are trivial. Howard Hinnant 2012-02-01 21:06:46 +0000
  • ebe450533f Add some tests to test catching nullptr with pointers and member pointers. Tests are only activated if #if __has_feature(cxx_nullptr). Howard Hinnant 2012-02-01 21:01:52 +0000
  • c649bdea9d Quash a TODO related to catching pointer-to-member. These tests fail on my copy of gcc-4.2. But I believe the tests to be correct (and they pass for libc++abi). I've enquired on the C++ standards mailing list for a clarification in case I'm wrong. So far I've gotten one response that agrees with me. Howard Hinnant 2012-02-01 20:53:21 +0000
  • 4b3cb1cb82 Quash TODO regarding catch by function type. Add tests to back it up. Howard Hinnant 2012-02-01 19:42:45 +0000
  • aafd08aa28 Quash TODO regarding catch by array type. Add tests to back it up. Howard Hinnant 2012-02-01 19:21:28 +0000
  • 7c73587e51 Removing a TODO: can_catch is fundamentally different than search_above_dst. can_catch is looking for an unamiguous public base class of a specific type, but at any address. search_above_dst is looking for an unambiguous public base class of a specific type, *and* at a specific address. Additionally can_catch is run for all types. search_above_dst is only run on class types. So these are only superficially similar. Not similar enough for resuse, at least without making the code unreadable. Howard Hinnant 2012-02-01 18:52:35 +0000
  • 8dd7a48855 Teach exception_cleanup_func about dependent exceptions. Howard Hinnant 2012-02-01 18:44:21 +0000
  • 7ab185ea39 Treat all exceptions except that the ones that this library throws as foreign. Even other C++ exceptions. Howard Hinnant 2012-02-01 18:15:15 +0000
  • 29ae5fcdae Nothing but polishing comments. Howard Hinnant 2012-02-01 16:56:40 +0000
  • 3a1009ca97 Move an error detector to a better place. Howard Hinnant 2012-02-01 16:16:11 +0000
  • e162bf2dec Here's a test for catching pointers. Howard Hinnant 2012-02-01 00:22:38 +0000
  • 830713c63e More test cases concentrating on catching class types. Howard Hinnant 2012-01-31 23:52:20 +0000
  • dfb07f80c1 Some unwinding test cases Howard Hinnant 2012-01-31 21:58:58 +0000
  • 3a2765fc4e Back the optimization down from -O3 to -Os. I'm getting an unexplained crasher on -O3. I've looked for a libc++abi bug and can't find one. I'm suspecting clang optimizer bug. But I don't have a good test case at the moment. Deferring investigation on this for now as I will soon be developing more and smaller tests. Howard Hinnant 2012-01-31 20:22:59 +0000
  • 9fb5709499 Drop the stress a notch on dynamic_cast_stress.cpp. Otherwise it occasionally causes clang to crash. Put a noexcept(false) on a throwing destructor in test_vector1.cpp. The test now passes for both C++03 and C++11 modes. Add testit script. All tests are now PASSING :-) Howard Hinnant 2012-01-31 20:10:33 +0000
  • 6953d901c3 Correct test bug. Howard Hinnant 2012-01-31 20:01:06 +0000
  • 06b1ea1bbd Have the default unexpected/terminate handler output *demangled* names for the type of exception instead of the mangled name. Howard Hinnant 2012-01-31 19:48:06 +0000
  • 2e774bf081 Fix type-o in the comment of the last commit Howard Hinnant 2012-01-31 19:05:08 +0000
  • 135b4bd223 Found and fixed a bug in __cxa_call_unexpected. If the unexpected_handler rethrows the same exception then needed information gets overwritten in the original exception header. Therefore save it locally before executing the unexpected_handler. Howard Hinnant 2012-01-31 18:57:20 +0000
  • a5f9da203d Found and fixed bug in personality function: Don't dive into the action table if the action entry is zero. Howard Hinnant 2012-01-31 17:15:14 +0000
  • 1a58491066 Minor bug fix in __cxa_call_unexpected. Changed std::terminate to detect a caught-but-unhandled exception, and choose the handler out of that if found. Howard Hinnant 2012-01-31 01:51:15 +0000
  • 4c8d5613f3 Refactored personality function. Found one bug in scanning exception spec lists. Howard Hinnant 2012-01-30 20:16:21 +0000
  • 723ef221e0 Removed debugging print statements Howard Hinnant 2012-01-30 20:13:37 +0000
  • 7da9b96afc Add a descriptive name for a constant. Also I'm at least temporarily waging war on throw specs, both old and new style. Except where we have already publicly exposed the throw spec, I'm getting rid of them. They may come back later. But they seem somewhat prone to cyclic dependencies here. The throw spec implies compiler generated code that this library has to jump to during stack unwinding. I'd like to minimize the possiblity that the code used to properly make that jump is itself creating such jumps. Howard Hinnant 2012-01-30 16:07:00 +0000
  • 2b891bfd06 Add -fstrict-aliasing -Wstrict-aliasing and change optimization from -Os to -O3 Howard Hinnant 2012-01-30 16:03:23 +0000
  • ca00a4e83e Put throw() clauses back on these functions in cxxabi.h. This header must be C++03 compatible and these throw specs are consistent with the current cxxabi.h that Apple ships. Howard Hinnant 2012-01-30 16:02:11 +0000
  • 978bfdea30 Minor updates to a couple of comments. Howard Hinnant 2012-01-28 00:34:46 +0000
  • a4d69a35ba Add a little paranoia for testing purposes. Howard Hinnant 2012-01-28 00:32:31 +0000
  • 27b00d862a Minor header fixups for test. Howard Hinnant 2012-01-28 00:30:38 +0000
  • eb6fb17e25 Silence a warning. Howard Hinnant 2012-01-28 00:29:27 +0000
  • 66f658093a Sometimes it takes all day to write a decent comment. This is one of those times, and I'm still not quite sure I have them correct. Howard Hinnant 2012-01-28 00:28:31 +0000
  • 033016c562 These commits are intended to be temporary in nature and are to facilitate the testing of libc++abi.dylib at this point in time. Howard Hinnant 2012-01-25 19:27:42 +0000
  • f6d4cba783 Add comment documenting extension behavior of __cxa_get_globals_fast(). Howard Hinnant 2012-01-25 19:19:13 +0000
  • de34b3e7ee cxa_guard.cpp didn't quite make it on the last commit: Restricted headers to cxa_guard.cpp and abort_messsage.h, and added a comment regarding reentrancy brought up by John McCall. Thanks John. Howard Hinnant 2012-01-25 19:02:40 +0000
  • 1743feef39 Restricted headers to cxa_guard.cpp and abort_messsage.h, and added a comment regarding reentrancy brought up by John McCall. Thanks John. Howard Hinnant 2012-01-25 18:50:55 +0000
  • f81cdffb22 By changing all of the throw() specs to noexcept I've been able to compile and link all of the source files into a dylib. Prior to this substitution the changed functions were calling __cxa_call_unexpected which isn't implemented yet. However in none of these cases do we actaully want __cxa_call_unexpected to be called. Primative buildit script added. Howard Hinnant 2012-01-24 23:42:30 +0000
  • 00cc7d2c79 Add some needed symbols in exception.cpp and eliminate dependence upon uncaught_exception() from cxa_vector.cpp. libc++abi is very nearly a self-contained (though not complete) library now. Howard Hinnant 2012-01-24 21:48:10 +0000
  • 60a178840d Marshall Clow reminded me that fallback_malloc.cpp was broken out for testing purposes. We've agreed to simply rename fallback_malloc.cpp to fallback_malloc.ipp. Thanks Marshall. Howard Hinnant 2012-01-24 21:41:27 +0000
  • 35b2c2af6b Add some needed symbols to cxa_new_delete.cpp and put the display() stuff under #DEBUG (again). Howard Hinnant 2012-01-24 21:35:18 +0000
  • c2dfdeb451 Got fooled by fallback_malloc.cpp source file: it is really a private header. I've manually included it into the only place it is used: cxa_exception.cpp. Howard Hinnant 2012-01-24 21:02:21 +0000
  • 73fd45bc7d Add new file for public type_info-related signatures Howard Hinnant 2012-01-24 21:01:01 +0000
  • c632c50527 CrashReporterClient.h is back, but this time protected with __has_include. Thanks for the suggestion Doug. The use is consistent with how the same header is used in llvm/lib/Support/PrettyStackTrace.cpp (though there autoconfig is used instead of __has_include). Howard Hinnant 2012-01-24 19:58:25 +0000
  • 3f034b77da Remove dependence upon std::exception_ptr from the default_terminate_handler. Recovered the equivalent functionality at a lower level. Howard Hinnant 2012-01-24 18:26:29 +0000
  • 08f419c67a Forgot to include this file in the last commit: Move kOurExceptionClass and kOurDependentExceptionClass from source to header so that they can be used in multiple sources. This is a private header, these constants are not publicly exposed. Howard Hinnant 2012-01-24 18:17:40 +0000
  • 2a70c10984 Move kOurExceptionClass and kOurDependentExceptionClass from source to header so that they can be used in multiple sources. This is a private header, these constants are not publicly exposed. Howard Hinnant 2012-01-24 18:15:20 +0000
  • ae154287dd Removed reference to internal header Howard Hinnant 2012-01-24 00:52:33 +0000
  • ca6514dfea Changed my mind about __cxa_uncaught_exception and added it. Howard Hinnant 2012-01-24 00:01:31 +0000
  • 8f696ff15c I renamed abort_message to be a C++ file to simplify my simplistic build script which I'm still working on. I also added a struct for the crash reporter on __APPLE__. Howard Hinnant 2012-01-23 23:58:26 +0000
  • 928afcd281 A lot of the code in cxa_exception.cpp depends on __cxa_get_globals_fast() returning null if __cxa_get_globals() hasn't been called yet. However it doesn't reliably do that, at least on OS X if __cxa_get_globals_fast() is called prior to pthread_key_create() running. Our choice is to either limit our use of __cxa_get_globals_fast() more than we have, or to have __cxa_get_globals_fast() initialize with pthread_key_create() if necessary. I chose the latter, and replaced pthread_once with a C++11 local static (which should do the same thing). Howard Hinnant 2012-01-23 23:55:58 +0000
  • 9c6f621671 Added missing #include Howard Hinnant 2012-01-23 23:51:56 +0000
  • a1919d2ee2 I'm beginning to be able to throw/catch a wide variety of objects. Howard Hinnant 2012-01-23 18:39:47 +0000
  • c30bfdc7ff Getting started on matching a thrown exception to a catch clause, and setting the adjusted pointer to the caught object appearing in the catch clause. Howard Hinnant 2012-01-22 21:47:40 +0000
  • a36fb308d6 I kept getting confused among the __cxa_exception*, the _Unwind_Exception* and the void* to the thrown object. So I've gone through these two files and attempted to institute a consistent variable naming scheme, and in a few instances, turned void* into a concrete* to have the type system help me out. No change in functionality for this commit is intended. Howard Hinnant 2012-01-22 19:14:27 +0000
  • facfc46ef3 Add __shim_type_info which fits below std::type_info and above all of the other type_info-derived classes. This is where all of the virtual functions that serve as details of the inner-workings of type_info will live (safely hidden from public view). All type_info objects will be safely down-castable to __shim_type_info, so as to access implementation detail virtual functions. Also temporarily add some print/display statements to each type_info-derived class. This is in support of the continuing development on the personality function. Howard Hinnant 2012-01-22 01:23:02 +0000
  • 321a095c08 Change header to generic, instead of implementation specific Howard Hinnant 2012-01-22 01:19:20 +0000
  • 65255631de One more small optimization: Where possible, for loops that do a search and then try to break out of the loop early, eliminate the attempt to break out of the loop after the last search. And with that, I'm declaring __dynamic_cast done. Though if anyone sees any problems, has suggestions for improvements, or wants to contribute some test cases, that is certainly welcome feedback. Howard Hinnant 2012-01-16 18:21:05 +0000
  • cc614df38c Comment smithing. Changed some casts from C-style to C++. And added timings to all of the tests. Howard Hinnant 2012-01-16 17:06:51 +0000
  • 1309366d36 I think this is getting close on __dynamic_cast. There's been quite a bit of code rearrangement, renaming, and better commenting. This exercise has exposed and fixed a few more bugs. I've also added several more tests (there's definitely a need for more tests here). Howard Hinnant 2012-01-16 00:13:46 +0000
  • 481fe05b27 Two bug fixes, several clarifications, and a few comment updates. Howard Hinnant 2012-01-14 14:15:43 +0000
  • 271f1ac649 A bug fix involving the updating of path_dst_ptr_to_static_ptr. Some minor code rearrangement optimizations (putting most likely 'if' first in an if-else series. And some major optimizations which involve stopping the search prior to an exhaustive walk over the entire tree. Some of these stops are because an ambiguity is detected earlier. And some of the short circuiting is due to the information from the bits __diamond_shaped_mask and __non_diamond_repeat_mask. The stress test checked in last night is now about 28% faster for the B<Width/2, Depth> -O3 case. I'm still playing with some more optimization possibilities but I'm not sure they will play out. Howard Hinnant 2012-01-13 23:06:03 +0000
  • a39c104501 Enclosed is a stress test for dynamic_cast. It stresses both libc++abi, and clang itself. It creates a ridiculously large class hierarchy using variadic templates. You can specify both the width and depth of the class hierarchy. And you can specify whether the cast is to the actual run time type, or to an intermediate layer in the class. About 1/3 of the time I compile this, it crashes the compiler. There seems to be an uninitialized area of memory, and I'm probably blowing past an assumption on class hierarchy size within clang (and understandably so). I can get it work most of the time with a class hierarchy width of 20 and a depth of 7. I'm making timings with both -O3 and -Os, using both cast to root and cast to intermediate, on both libc++abi, and gcc's dynamic_cast. I've put the results in a comment/table at the bottom of the test. Howard Hinnant 2012-01-13 01:22:31 +0000
  • 68fd743cd3 Oops, forgot to svn add the new test. Howard Hinnant 2012-01-12 21:08:25 +0000
  • 9a1aad5a7f Put debug print statments under a flag so that I can get a first glimpse at performance. So far I haven't noticed any performance difference between this new __dynamic_cast and gcc's implementation. But I've barely started looking. Also adding a couple of tests which come straight out of the standard. Howard Hinnant 2012-01-12 21:06:12 +0000
  • 185dc7d61f Fixed a couple of bugs, updated many comments, and am including a comprehensive test for when there are only 3 types in place. I need to do something similar for 4 and maybe more types, but I'm not sure how comprehensive I can make the test at 4 and above types. Howard Hinnant 2012-01-12 19:48:14 +0000
  • f877d21f16 Initial implementaiton of __dynamic_cast. There is still lots of debugging code in here that needs to be stripped out. And many, many unit tests need to be written. And comments and probably code cleanliness needs to be improved. But I *think* the basic algorithm is sound. There also may still be some oportunities for algorithm optimization, I'm not positive. Howard Hinnant 2012-01-11 23:49:18 +0000
  • 16650b58df This is a transitory commit for __dynamic_cast. It contains debugging statements that are not intended to be in the finished product. However some of the dubbing statements themselves contain important documentation such as how to navigate a __class_type_info hierarchy, documenting object offset and inheritance access. The intention is that this debugging code will migrate into both actual code and comments. And capturing it here so that there is no chance this stuff will be lost. Howard Hinnant 2012-01-11 00:11:17 +0000
  • 152beb7a42 Getting a start on the typeinfo infrastructure. Howard Hinnant 2012-01-09 17:10:00 +0000
  • 3fa75e1680 First brush with testing __gxx_personality_v0 reveals there is still a long way to go. But my understanding of what it is supposed to do continues to improve. I am currently contemplating whether I need to implement typeinfo before completing __gxx_personality_v0 in order to get matching catch handlers correct. Howard Hinnant 2012-01-08 23:50:46 +0000
  • 8ca7603d21 Add a few TODO's and FIXME's. Making notes as I go along, but not slowing down to fix these yet. Just don't want anything to fall through the cracks. Howard Hinnant 2012-01-08 23:40:41 +0000
  • acfbf36d94 Correct comment regarding members of __cxa_dependent_exception. Actually it is useful to disguise a __cxa_dependent_exception as a __cxa_exception by filling in most (not all) of these members at __cxa_dependent_exception construction time. That way most routines don't have to care which kind of exception they have. Howard Hinnant 2012-01-08 23:39:14 +0000
  • 701d94c5dd __gxx_personality_v0 update. This is completely untested code. But my brain is scrambled and I wanted to get it checked in. Code review from anyone who knows anything at all about personality functions would be much appreciated. What is in here is borrowed heavily from llvm/examples/ExceptionDemo/ExceptionDemo.cpp. There are some calls to abort() that should probably be changed to return an error code instead. There may be encodings under readEncodedPointer that need to be implemented. And my handling of type_info is almost a complete guess. Howard Hinnant 2012-01-06 20:39:47 +0000
  • 0acbd98b56 Improved comment to explain why we can use __cxa_get_globals_fast here Marshall Clow 2012-01-04 22:18:10 +0000
  • ed2ea9bfd2 Just getting started on the personality routine. This is just a skeleton. Still learning how to fill it in... Howard Hinnant 2012-01-04 20:49:43 +0000
  • 2bce81b969 Better comment Marshall Clow 2012-01-04 14:56:09 +0000
  • aeed3a90ce Don't allocate TLS storage when checking to see if an exception has been thrown - really Marshall Clow 2012-01-03 23:26:09 +0000
  • 62edc0172b Don't allocate TLS storage when checking to see if an exception has been thrown Marshall Clow 2012-01-03 23:10:20 +0000
  • 57d64cd19a credits adjustment Howard Hinnant 2011-12-22 16:00:06 +0000
  • 64e0097014 Updated __cxa_current_exception_type to call __cxa_get_globals_fast - will not allocate globals Marshall Clow 2011-12-22 15:45:05 +0000
  • 50dbae0b85 Updated spec.html regarding __cxa_uncaught_exception. Howard Hinnant 2011-12-22 00:03:36 +0000
  • dd47ca4f1c Forgot to increment uncaughtExceptions in __cxa_rethrow_primary_exception Howard Hinnant 2011-12-21 23:48:05 +0000
  • 1b0aed9312 Added __cxa_increment_exception_refcount, __cxa_decrement_exception_refcount, __cxa_current_primary_exception, __cxa_rethrow_primary_exception Howard Hinnant 2011-12-21 23:32:11 +0000
  • 4a6e1033ec Add new and delete operators Howard Hinnant 2011-12-20 20:38:05 +0000
  • ab87dcf97e Fixed several bugs, implemented support for vector types, and cleaned out dead code. Howard Hinnant 2011-12-15 20:02:15 +0000
  • 5ee51a7062 Fix size calculation for pointer to member function Howard Hinnant 2011-12-13 01:23:16 +0000
  • d4028fe9fa Made some minor tweaks to __cxa_rethrow Howard Hinnant 2011-12-12 19:11:42 +0000
  • b5fea43d2d Added dependent exception support to __cxa_current_exception_type Howard Hinnant 2011-12-12 18:16:10 +0000
  • f270035a31 Added support for <special-name> ::= TC <first type> <number> _ <second type> # construction vtable for second-in-first, and for <special-name> ::= GR <object name> # reference temporary for object Howard Hinnant 2011-12-09 20:07:56 +0000
  • 6eb54ad96e Modified __cxa_end_catch to handle dependent exceptions. Howard Hinnant 2011-12-08 19:35:18 +0000
  • e8fcf83b57 Reviewing cxa_exception.cpp and marking as implemented as I go. Not marking as implemented on arm when I'm not sure about that platform. Howard Hinnant 2011-12-07 21:16:40 +0000
  • cd081650f8 Added __cxa_allocate_dependent_exception and __cxa_free_dependent_exception and marked them as done. Howard Hinnant 2011-12-07 18:30:06 +0000
  • fb271ad9c5 Substituted std::get_terminate() for direct access to the handler function pointer (which is now a static in cxa_handlers.cpp). This has the advantage of going through the atomic API and so is less likely to cause a data race. Ditto for unexpected. Howard Hinnant 2011-12-06 19:02:03 +0000
  • b9f2cc816d Add/update copyright notices Howard Hinnant 2011-12-06 18:01:47 +0000