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| author | Martin Storsjo <martin@martin.st> | 2018-07-23 22:09:23 +0000 |
|---|---|---|
| committer | Martin Storsjo <martin@martin.st> | 2018-07-23 22:09:23 +0000 |
| commit | 363301929037f7ca8575e835be410151ccece134 (patch) | |
| tree | f122fb3c0f45b05193c72ba48016f0b50a833264 | |
| parent | b35994390a41f4bd8c85b2291daaf6ca113e758b (diff) | |
| download | libcxxabi-363301929037f7ca8575e835be410151ccece134.tar.gz | |
Implement a GCC compatible SEH unwinding personality, __gxx_personality_seh0
This allows handling SEH based exceptions, with unwind functions
provided by libgcc.
Differential Revision: https://reviews.llvm.org/D49638
git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@337754 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | src/cxa_personality.cpp | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/src/cxa_personality.cpp b/src/cxa_personality.cpp index 7f857fa..6759d8a 100644 --- a/src/cxa_personality.cpp +++ b/src/cxa_personality.cpp @@ -23,6 +23,16 @@ #include "private_typeinfo.h" #include "unwind.h" +#if defined(__SEH__) && !defined(__USING_SJLJ_EXCEPTIONS__) +#include <windows.h> +#include <winnt.h> + +extern "C" EXCEPTION_DISPOSITION _GCC_specific_handler(PEXCEPTION_RECORD, + void *, PCONTEXT, + PDISPATCHER_CONTEXT, + _Unwind_Personality_Fn); +#endif + /* Exception Header Layout: @@ -934,12 +944,16 @@ _UA_CLEANUP_PHASE */ #if !defined(_LIBCXXABI_ARM_EHABI) +#if defined(__SEH__) && !defined(__USING_SJLJ_EXCEPTIONS__) +static _Unwind_Reason_Code __gxx_personality_imp +#else _LIBCXXABI_FUNC_VIS _Unwind_Reason_Code #ifdef __USING_SJLJ_EXCEPTIONS__ __gxx_personality_sj0 #else __gxx_personality_v0 #endif +#endif (int version, _Unwind_Action actions, uint64_t exceptionClass, _Unwind_Exception* unwind_exception, _Unwind_Context* context) { @@ -1022,6 +1036,17 @@ __gxx_personality_v0 // We were called improperly: neither a phase 1 or phase 2 search return _URC_FATAL_PHASE1_ERROR; } + +#if defined(__SEH__) && !defined(__USING_SJLJ_EXCEPTIONS__) +extern "C" EXCEPTION_DISPOSITION +__gxx_personality_seh0(PEXCEPTION_RECORD ms_exc, void *this_frame, + PCONTEXT ms_orig_context, PDISPATCHER_CONTEXT ms_disp) +{ + return _GCC_specific_handler(ms_exc, this_frame, ms_orig_context, ms_disp, + __gxx_personality_imp); +} +#endif + #else extern "C" _Unwind_Reason_Code __gnu_unwind_frame(_Unwind_Exception*, |