From 78ea87c58065224a8461430591fe0d1a6e71eeb5 Mon Sep 17 00:00:00 2001
From: Peter Beutner
Date: Sun, 30 Oct 2005 19:03:43 +0000
Subject: [PATCH] Fix exception handling for non CXX_EXCEPTIONs.
---
dlls/msvcrt/cppexcept.c | 67 ++++++++++++++++++++++++++---------------
1 file changed, 42 insertions(+), 25 deletions(-)
diff --git a/dlls/msvcrt/cppexcept.c b/dlls/msvcrt/cppexcept.c
index 229c836aa52..339bb7b8b13 100644
--- a/dlls/msvcrt/cppexcept.c
+++ b/dlls/msvcrt/cppexcept.c
@@ -260,13 +260,23 @@ inline static void *call_catch_block( PEXCEPTION_RECORD rec, cxx_exception_frame
for (j = 0; j < tryblock->catchblock_count; j++)
{
catchblock_info *catchblock = &tryblock->catchblock[j];
- const cxx_type_info *type = find_caught_type( info, catchblock );
- if (!type) continue;
+ if(info)
+ {
+ const cxx_type_info *type = find_caught_type( info, catchblock );
+ if (!type) continue;
- TRACE( "matched type %p in tryblock %d catchblock %d\n", type, i, j );
+ TRACE( "matched type %p in tryblock %d catchblock %d\n", type, i, j );
- /* copy the exception to its destination on the stack */
- copy_exception( object, frame, catchblock, type );
+ /* copy the exception to its destination on the stack */
+ copy_exception( object, frame, catchblock, type );
+ }
+ else
+ {
+ /* no CXX_EXCEPTION only proceed with a catch(...) block*/
+ if(catchblock->type_info)
+ continue;
+ TRACE("found catch(...) block\n");
+ }
/* unwind the stack */
RtlUnwind( frame, 0, rec, 0 );
@@ -274,8 +284,8 @@ inline static void *call_catch_block( PEXCEPTION_RECORD rec, cxx_exception_frame
frame->trylevel = tryblock->end_level + 1;
/* call the catch block */
- TRACE( "calling catch block %p for type %p addr %p ebp %p\n",
- catchblock, type, catchblock->handler, &frame->ebp );
+ TRACE( "calling catch block %p addr %p ebp %p\n",
+ catchblock, catchblock->handler, &frame->ebp );
/* setup an exception block for nested exceptions */
@@ -291,7 +301,7 @@ inline static void *call_catch_block( PEXCEPTION_RECORD rec, cxx_exception_frame
thread_data->exc_record = nested_frame.prev_rec;
__wine_pop_frame( &nested_frame.frame );
- if (info->destructor) call_dtor( info->destructor, object );
+ if (info && info->destructor) call_dtor( info->destructor, object );
TRACE( "done, continuing at %p\n", addr );
return addr;
}
@@ -325,27 +335,34 @@ static DWORD cxx_frame_handler( PEXCEPTION_RECORD rec, cxx_exception_frame* fram
}
if (!descr->tryblock_count) return ExceptionContinueSearch;
- exc_type = (cxx_exception_type *)rec->ExceptionInformation[2];
- if (rec->ExceptionCode == CXX_EXCEPTION &&
- rec->ExceptionInformation[0] > CXX_FRAME_MAGIC &&
- exc_type->custom_handler)
+ if(rec->ExceptionCode == CXX_EXCEPTION)
{
- return exc_type->custom_handler( rec, frame, exc_context, dispatch,
- descr, nested_trylevel, nested_frame, 0 );
- }
-
- if (!exc_type) /* nested exception, fetch info from original exception */
- {
- rec = msvcrt_get_thread_data()->exc_record;
exc_type = (cxx_exception_type *)rec->ExceptionInformation[2];
- }
- if (TRACE_ON(seh))
+ if (rec->ExceptionInformation[0] > CXX_FRAME_MAGIC &&
+ exc_type->custom_handler)
+ {
+ return exc_type->custom_handler( rec, frame, exc_context, dispatch,
+ descr, nested_trylevel, nested_frame, 0 );
+ }
+ if (!exc_type) /* nested exception, fetch info from original exception */
+ {
+ rec = msvcrt_get_thread_data()->exc_record;
+ exc_type = (cxx_exception_type *)rec->ExceptionInformation[2];
+ }
+ if (TRACE_ON(seh))
+ {
+ TRACE("handling C++ exception rec %p frame %p trylevel %d descr %p nested_frame %p\n",
+ rec, frame, frame->trylevel, descr, nested_frame );
+ dump_exception_type( exc_type );
+ dump_function_descr( descr, exc_type );
+ }
+ }
+ else
{
- TRACE("handling C++ exception rec %p frame %p trylevel %d descr %p nested_frame %p\n",
- rec, frame, frame->trylevel, descr, nested_frame );
- dump_exception_type( exc_type );
- dump_function_descr( descr, exc_type );
+ exc_type = NULL;
+ TRACE("handling C exception code %lx rec %p frame %p trylevel %d descr %p nested_frame %p\n",
+ rec->ExceptionCode, rec, frame, frame->trylevel, descr, nested_frame );
}
next_ip = call_catch_block( rec, frame, descr, frame->trylevel, exc_type );