Alexandre Julliard : msvcrt: Add support for VC7 and VC8 extensions to the C++ exception handler.
Module: wine Branch: master Commit: 5807b5e55c9647dbd68454aab08f5f7e86436793 URL: http://source.winehq.org/git/wine.git/?a=commit;h=5807b5e55c9647dbd68454aab0...
Author: Alexandre Julliard julliard@winehq.org Date: Tue Apr 13 17:21:06 2010 +0200
msvcrt: Add support for VC7 and VC8 extensions to the C++ exception handler.
---
dlls/msvcr80/msvcr80.spec | 4 ++-- dlls/msvcr90/msvcr90.spec | 4 ++-- dlls/msvcrt/cppexcept.c | 17 +++++++++++++---- dlls/msvcrt/cppexcept.h | 13 ++++++++++--- dlls/msvcrt/msvcrt.spec | 4 ++-- 5 files changed, 29 insertions(+), 13 deletions(-)
diff --git a/dlls/msvcr80/msvcr80.spec b/dlls/msvcr80/msvcr80.spec index ec80a7f..3540296 100644 --- a/dlls/msvcr80/msvcr80.spec +++ b/dlls/msvcr80/msvcr80.spec @@ -118,8 +118,8 @@ @ cdecl __CxxDetectRethrow(ptr) msvcrt.__CxxDetectRethrow @ stub __CxxExceptionFilter @ cdecl -i386 -norelay __CxxFrameHandler(ptr ptr ptr ptr) msvcrt.__CxxFrameHandler -@ stub __CxxFrameHandler2 -@ stub __CxxFrameHandler3 +@ cdecl -i386 -norelay __CxxFrameHandler2(ptr ptr ptr ptr) msvcrt.__CxxFrameHandler +@ cdecl -i386 -norelay __CxxFrameHandler3(ptr ptr ptr ptr) msvcrt.__CxxFrameHandler @ stdcall -i386 __CxxLongjmpUnwind(ptr) msvcrt.__CxxLongjmpUnwind @ cdecl __CxxQueryExceptionSize() msvcrt.__CxxQueryExceptionSize @ stub __CxxRegisterExceptionObject diff --git a/dlls/msvcr90/msvcr90.spec b/dlls/msvcr90/msvcr90.spec index 5854663..218ae78 100644 --- a/dlls/msvcr90/msvcr90.spec +++ b/dlls/msvcr90/msvcr90.spec @@ -115,8 +115,8 @@ @ cdecl __CxxDetectRethrow(ptr) msvcrt.__CxxDetectRethrow @ stub __CxxExceptionFilter @ cdecl -i386 -norelay __CxxFrameHandler(ptr ptr ptr ptr) msvcrt.__CxxFrameHandler -@ stub __CxxFrameHandler2 -@ stub __CxxFrameHandler3 +@ cdecl -i386 -norelay __CxxFrameHandler2(ptr ptr ptr ptr) msvcrt.__CxxFrameHandler +@ cdecl -i386 -norelay __CxxFrameHandler3(ptr ptr ptr ptr) msvcrt.__CxxFrameHandler @ stdcall -i386 __CxxLongjmpUnwind(ptr) msvcrt.__CxxLongjmpUnwind @ cdecl __CxxQueryExceptionSize() msvcrt.__CxxQueryExceptionSize @ stub __CxxRegisterExceptionObject diff --git a/dlls/msvcrt/cppexcept.c b/dlls/msvcrt/cppexcept.c index 4bdd59c..a07d544 100644 --- a/dlls/msvcrt/cppexcept.c +++ b/dlls/msvcrt/cppexcept.c @@ -138,6 +138,10 @@ static void dump_function_descr( const cxx_function_descr *descr ) ptr->type_info, dbgstr_type_info( ptr->type_info ) ); } } + if (descr->magic <= CXX_FRAME_MAGIC_VC6) return; + TRACE( "expect list: %p\n", descr->expect_list ); + if (descr->magic <= CXX_FRAME_MAGIC_VC7) return; + TRACE( "flags: %08x\n", descr->flags ); }
/* check if the exception type is caught by a given catch block, and return the type that matched */ @@ -363,11 +367,16 @@ DWORD CDECL cxx_frame_handler( PEXCEPTION_RECORD rec, cxx_exception_frame* frame { cxx_exception_type *exc_type;
- if (descr->magic != CXX_FRAME_MAGIC) + if (descr->magic < CXX_FRAME_MAGIC_VC6 || descr->magic > CXX_FRAME_MAGIC_VC8) { ERR( "invalid frame magic %x\n", descr->magic ); return ExceptionContinueSearch; } + if (descr->magic >= CXX_FRAME_MAGIC_VC8 && + (descr->flags & FUNC_DESCR_SYNCHRONOUS) && + (rec->ExceptionCode != CXX_EXCEPTION)) + return ExceptionContinueSearch; /* handle only c++ exceptions */ + if (rec->ExceptionFlags & (EH_UNWINDING|EH_EXIT_UNWIND)) { if (descr->unwind_count && !nested_trylevel) cxx_local_unwind( frame, descr, -1 ); @@ -379,7 +388,7 @@ DWORD CDECL cxx_frame_handler( PEXCEPTION_RECORD rec, cxx_exception_frame* frame { exc_type = (cxx_exception_type *)rec->ExceptionInformation[2];
- if (rec->ExceptionInformation[0] > CXX_FRAME_MAGIC && + if (rec->ExceptionInformation[0] > CXX_FRAME_MAGIC_VC8 && exc_type->custom_handler) { return exc_type->custom_handler( rec, frame, context, dispatch, @@ -466,7 +475,7 @@ void CDECL _CxxThrowException( exception *object, const cxx_exception_type *type { ULONG_PTR args[3];
- args[0] = CXX_FRAME_MAGIC; + args[0] = CXX_FRAME_MAGIC_VC6; args[1] = (ULONG_PTR)object; args[2] = (ULONG_PTR)type; RaiseException( CXX_EXCEPTION, EH_NONCONTINUABLE, 3, args ); @@ -486,7 +495,7 @@ BOOL CDECL __CxxDetectRethrow(PEXCEPTION_POINTERS ptrs)
if (rec->ExceptionCode == CXX_EXCEPTION && rec->NumberParameters == 3 && - rec->ExceptionInformation[0] == CXX_FRAME_MAGIC && + rec->ExceptionInformation[0] == CXX_FRAME_MAGIC_VC6 && rec->ExceptionInformation[2]) { ptrs->ExceptionRecord = msvcrt_get_thread_data()->exc_record; diff --git a/dlls/msvcrt/cppexcept.h b/dlls/msvcrt/cppexcept.h index 7afb078..a46f222 100644 --- a/dlls/msvcrt/cppexcept.h +++ b/dlls/msvcrt/cppexcept.h @@ -21,8 +21,10 @@ #ifndef __MSVCRT_CPPEXCEPT_H #define __MSVCRT_CPPEXCEPT_H
-#define CXX_FRAME_MAGIC 0x19930520 -#define CXX_EXCEPTION 0xe06d7363 +#define CXX_FRAME_MAGIC_VC6 0x19930520 +#define CXX_FRAME_MAGIC_VC7 0x19930521 +#define CXX_FRAME_MAGIC_VC8 0x19930522 +#define CXX_EXCEPTION 0xe06d7363
typedef void (*vtable_ptr)(void);
@@ -87,9 +89,14 @@ typedef struct __cxx_function_descr const unwind_info *unwind_table; /* array of unwind handlers */ UINT tryblock_count; /* number of try blocks */ const tryblock_info *tryblock; /* array of try blocks */ - UINT unknown[3]; + UINT ipmap_count; + const void *ipmap; + const void *expect_list; /* expected exceptions list when magic >= VC7 */ + UINT flags; /* flags when magic >= VC8 */ } cxx_function_descr;
+#define FUNC_DESCR_SYNCHRONOUS 1 /* synchronous exceptions only (built with /EHs) */ + typedef void (*cxx_copy_ctor)(void);
/* offsets for computing the this pointer */ diff --git a/dlls/msvcrt/msvcrt.spec b/dlls/msvcrt/msvcrt.spec index c90110f..8482863 100644 --- a/dlls/msvcrt/msvcrt.spec +++ b/dlls/msvcrt/msvcrt.spec @@ -114,8 +114,8 @@ @ cdecl __CxxDetectRethrow(ptr) # stub __CxxExceptionFilter @ cdecl -i386 -norelay __CxxFrameHandler(ptr ptr ptr ptr) -# stub __CxxFrameHandler2 -# stub __CxxFrameHandler3 +@ cdecl -i386 -norelay __CxxFrameHandler2(ptr ptr ptr ptr) __CxxFrameHandler +@ cdecl -i386 -norelay __CxxFrameHandler3(ptr ptr ptr ptr) __CxxFrameHandler @ stdcall -arch=x86_64 __C_specific_handler(ptr long ptr ptr) ntdll.__C_specific_handler @ stdcall -i386 __CxxLongjmpUnwind(ptr) @ cdecl __CxxQueryExceptionSize()
-
Alexandre Julliard