28 May 2008

Author: tkreuzer
Date: Tue May 27 19:41:13 2008
New Revision: 33732
URL: http://svn.reactos.org/svn/reactos?rev=33732&view=rev
Log:
exception.h: merge changes from wine.
Revision 1.37 fixes the exception in ole32 when opening a file with FoxitReader. Also fixes some warnings and hopefully some usermode crashes.
1.28: Jonathan Ernst jonathan@ernstfamily.ch
Update the address of the Free Software Foundation.
1.29: Alexandre Julliard julliard@winehq.org
include: Exception filters should return LONG, not DWORD.
Also move UnhandledExceptionFilter definitions to winbase.h since they
are there in the latest SDK.
1.30: Rob Shearman rob@codeweavers.com
include: Move Wine-specific EH_* defines from winnt.h to include/wine/exception.h.
1.33: Rob Shearman rob@codeweavers.com
Add a new convenience macro for an exception handler that handles all exceptions.
When using native compiler exceptions, the previous method of doing
this, __EXCEPT(NULL), would expand to __except(
(NULL)(GetExceptionInformation())) which doesn't compile as NULL isn't a
function.
So add a new macro, __EXCEPT_ALL, which works correctly both when using
native compiler exceptions and without and which makes the meaning of
code in which it is used clearer.
1.35: Alexandre Julliard julliard@winehq.org
ntdll: Make the exception handling functions inline.
1.36: Alexandre Julliard julliard@winehq.org
exception.h: Only push the exception frame after sigsetjmp.
Otherwise on Windows longjmp may want to mess with the exception frame.
1.37: Alexandre Julliard julliard@winehq.org
exception.h: Preserve registers when calling RtlUnwind.
See issue #812 for more details.
Modified:
    trunk/reactos/include/reactos/wine/exception.h
Modified: trunk/reactos/include/reactos/wine/exception.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/include/reactos/wine/except...
==============================================================================

--- trunk/reactos/include/reactos/wine/exception.h [iso-8859-1] (original)
+++ trunk/reactos/include/reactos/wine/exception.h [iso-8859-1] Tue May 27 19:41:13 2008
@@ -15,7 +15,7 @@
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  */
#ifndef __WINE_WINE_EXCEPTION_H
@@ -79,6 +79,7 @@
 #define __FINALLY(func) __finally { (func)(!AbnormalTermination()); }
 #define __ENDTRY /*nothing*/
 #define __EXCEPT_PAGE_FAULT __except(GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
+#define __EXCEPT_ALL __except(EXCEPTION_EXECUTE_HANDLER)
#else  /* USE_COMPILER_EXCEPTIONS */
@@ -100,7 +101,28 @@
          } else { \
              __f.frame.Handler = __wine_exception_handler; \
              __f.u.filter = (func); \
-             __wine_push_frame( &__f.frame ); \
+             if (setjmp( __f.jmp )) { \
+                 const __WINE_FRAME * const __eptr __attribute__((unused)) = &__f; \
+                 do {
+
+/* convenience handler for page fault exceptions */
+#define __EXCEPT_PAGE_FAULT \
+             } while(0); \
+             __wine_pop_frame( &__f.frame ); \
+             break; \
+         } else { \
+             __f.frame.Handler = __wine_exception_handler_page_fault; \
+             if (setjmp( __f.jmp )) { \
+                 const __WINE_FRAME * const __eptr __attribute__((unused)) = &__f; \
+                 do {
+
+/* convenience handler for all exception */
+#define __EXCEPT_ALL \
+             } while(0); \
+             __wine_pop_frame( &__f.frame ); \
+             break; \
+         } else { \
+             __f.frame.Handler = __wine_exception_handler_all; \
              if (setjmp( __f.jmp )) { \
                  const __WINE_FRAME * const __eptr __attribute__((unused)) = &__f; \
                  do {
@@ -109,6 +131,7 @@
                  } while (0); \
                  break; \
              } \
+             __wine_push_frame( &__f.frame ); \
              __first = 0; \
          } \
     } while (0);
@@ -127,13 +150,10 @@
     } while (0);
-typedef DWORD (CALLBACK *__WINE_FILTER)(PEXCEPTION_POINTERS);
+typedef LONG (CALLBACK *__WINE_FILTER)(PEXCEPTION_POINTERS);
 typedef void (CALLBACK *__WINE_FINALLY)(BOOL);
-/* convenience handler for page fault exceptions */
-#define __EXCEPT_PAGE_FAULT __EXCEPT( (__WINE_FILTER)1 )
-
-#define WINE_EXCEPTION_FILTER(func) DWORD CALLBACK func( PEXCEPTION_POINTERS __eptr )
+#define WINE_EXCEPTION_FILTER(func) LONG WINAPI func( EXCEPTION_POINTERS *__eptr )
 #define WINE_FINALLY_FUNC(func) void CALLBACK func( BOOL __normal )
#define GetExceptionInformation() (__eptr)
@@ -193,6 +213,39 @@
#ifndef USE_COMPILER_EXCEPTIONS
+static inline void DECLSPEC_NORETURN __wine_unwind_frame( EXCEPTION_RECORD *record,
+                                                          EXCEPTION_REGISTRATION_RECORD *frame )
+{
+    __WINE_FRAME *wine_frame = (__WINE_FRAME *)frame;
+
+    /* hack to make GetExceptionCode() work in handler */
+    wine_frame->ExceptionCode   = record->ExceptionCode;
+    wine_frame->ExceptionRecord = wine_frame;
+
+#if defined(__GNUC__) && defined(__i386__)
+    {
+        /* RtlUnwind clobbers registers on Windows */
+        int dummy1, dummy2, dummy3;
+        __asm__ __volatile__("pushl %%ebp\n\t"
+                             "pushl %%ebx\n\t"
+                             "pushl $0\n\t"
+                             "pushl %2\n\t"
+                             "pushl $0\n\t"
+                             "pushl %1\n\t"
+                             "call *%0\n\t"
+                             "popl %%ebx\n\t"
+                             "popl %%ebp"
+                             : "=a" (dummy1), "=S" (dummy2), "=D" (dummy3)
+                             : "0" (RtlUnwind), "1" (frame), "2" (record)
+                             : "ecx", "edx", "memory" );
+    }
+#else
+    RtlUnwind( frame, 0, record, 0 );
+#endif
+    __wine_pop_frame( frame );
+    longjmp( wine_frame->jmp, 1 );
+}
+ 
 static __inline EXCEPTION_DISPOSITION
 __wine_exception_handler( struct _EXCEPTION_RECORD *record, void *frame,
                           struct _CONTEXT *context, void *pdispatcher )
@@ -224,15 +277,28 @@
             break;
         }
     }
-    /* hack to make GetExceptionCode() work in handler */
-    wine_frame->ExceptionCode   = record->ExceptionCode;
-    wine_frame->ExceptionRecord = wine_frame;
-
-    RtlUnwind( frame, 0, record, 0 );
-    __wine_pop_frame( frame );
-    longjmp( wine_frame->jmp, 1 );
-}
-
+    __wine_unwind_frame( record, frame );
+}
+
+static __inline EXCEPTION_DISPOSITION
+__wine_exception_handler_page_fault( struct _EXCEPTION_RECORD *record, void *frame,
+                          struct _CONTEXT *context, void *pdispatcher )
+{
+    if (record->ExceptionFlags & (EH_UNWINDING | EH_EXIT_UNWIND | EH_NESTED_CALL))
+        return ExceptionContinueSearch;
+    if (record->ExceptionCode != STATUS_ACCESS_VIOLATION)
+        return ExceptionContinueSearch;
+    __wine_unwind_frame( record, frame );
+}
+
+static __inline EXCEPTION_DISPOSITION
+__wine_exception_handler_all( struct _EXCEPTION_RECORD *record, void *frame,
+                          struct _CONTEXT *context, void *pdispatcher )
+{
+    if (record->ExceptionFlags & (EH_UNWINDING | EH_EXIT_UNWIND | EH_NESTED_CALL))
+        return ExceptionContinueSearch;
+    __wine_unwind_frame( record, frame );
+}
static __inline EXCEPTION_DISPOSITION
 __wine_finally_handler( struct _EXCEPTION_RECORD *record, void *frame,
@@ -248,6 +314,14 @@
#endif /* USE_COMPILER_EXCEPTIONS */
+/* Exception handling flags - from OS/2 2.0 exception handling */
+
+/* Win32 seems to use the same flags as ExceptionFlags in an EXCEPTION_RECORD */
+#define EH_NONCONTINUABLE   0x01
+#define EH_UNWINDING        0x02
+#define EH_EXIT_UNWIND      0x04
+#define EH_STACK_INVALID    0x08
+#define EH_NESTED_CALL      0x10
/* Wine-specific exceptions codes */

    