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include: Add __EXCEPT_CTX/__FINALLY_CTX macros. 

Signed-off-by: Piotr Caban <piotr@codeweavers.com>
Signed-off-by: Daniel Lehman <dlehman@esri.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Piotr Caban 2017-05-31 12:39:29 +02:00 committed by Alexandre Julliard
parent f0949baafc
commit 3eae4807dc
2 changed files with 79 additions and 0 deletions
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38
dlls/winecrt0/exception.c
View File

@ -99,6 +99,31 @@ DWORD __wine_exception_handler( EXCEPTION_RECORD *record,
unwind_frame( record, frame );
}
DWORD __wine_exception_ctx_handler( EXCEPTION_RECORD *record,
EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context,
EXCEPTION_REGISTRATION_RECORD **pdispatcher )
{
__WINE_FRAME *wine_frame = (__WINE_FRAME *)frame;
EXCEPTION_POINTERS ptrs;
if (record->ExceptionFlags & (EH_UNWINDING | EH_EXIT_UNWIND | EH_NESTED_CALL))
return ExceptionContinueSearch;
ptrs.ExceptionRecord = record;
ptrs.ContextRecord = context;
switch(wine_frame->u.filter_ctx( &ptrs, wine_frame->ctx ))
{
case EXCEPTION_CONTINUE_SEARCH:
return ExceptionContinueSearch;
case EXCEPTION_CONTINUE_EXECUTION:
return ExceptionContinueExecution;
case EXCEPTION_EXECUTE_HANDLER:
break;
}
unwind_frame( record, frame );
}
DWORD __wine_exception_handler_page_fault( EXCEPTION_RECORD *record,
EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context,
@ -133,3 +158,16 @@ DWORD __wine_finally_handler( EXCEPTION_RECORD *record,
}
return ExceptionContinueSearch;
}
DWORD __wine_finally_ctx_handler( EXCEPTION_RECORD *record,
EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context,
EXCEPTION_REGISTRATION_RECORD **pdispatcher )
{
if (record->ExceptionFlags & (EH_UNWINDING | EH_EXIT_UNWIND))
{
__WINE_FRAME *wine_frame = (__WINE_FRAME *)frame;
wine_frame->u.finally_func_ctx( FALSE, wine_frame->ctx );
}
return ExceptionContinueSearch;
}

41
include/wine/exception.h
View File

@ -81,7 +81,9 @@ extern "C" {
#define __TRY __try
#define __EXCEPT(func) __except((func)(GetExceptionInformation()))
#define __EXCEPT_CTX(func, ctx) __except((func)(GetExceptionInformation(), ctx))
#define __FINALLY(func) __finally { (func)(!AbnormalTermination()); }
#define __FINALLY_CTX(func, ctx) __finally { (func)(!AbnormalTermination(), ctx); }
#define __ENDTRY /*nothing*/
#define __EXCEPT_PAGE_FAULT __except(GetExceptionCode() == EXCEPTION_ACCESS_VIOLATION)
#define __EXCEPT_ALL __except(EXCEPTION_EXECUTE_HANDLER)
@ -100,6 +102,10 @@ extern DWORD __wine_exception_handler( EXCEPTION_RECORD *record,
EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context,
EXCEPTION_REGISTRATION_RECORD **pdispatcher ) DECLSPEC_HIDDEN;
extern DWORD __wine_exception_ctx_handler( EXCEPTION_RECORD *record,
EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context,
EXCEPTION_REGISTRATION_RECORD **pdispatcher ) DECLSPEC_HIDDEN;
extern DWORD __wine_exception_handler_page_fault( EXCEPTION_RECORD *record,
EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context,
@ -112,6 +118,10 @@ extern DWORD __wine_finally_handler( EXCEPTION_RECORD *record,
EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context,
EXCEPTION_REGISTRATION_RECORD **pdispatcher ) DECLSPEC_HIDDEN;
extern DWORD __wine_finally_ctx_handler( EXCEPTION_RECORD *record,
EXCEPTION_REGISTRATION_RECORD *frame,
CONTEXT *context,
EXCEPTION_REGISTRATION_RECORD **pdispatcher ) DECLSPEC_HIDDEN;
#define __TRY \
do { __WINE_FRAME __f; \
@ -131,6 +141,18 @@ extern DWORD __wine_finally_handler( EXCEPTION_RECORD *record,
const __WINE_FRAME * const __eptr __attribute__((unused)) = &__f; \
do {
#define __EXCEPT_CTX(func, context) \
} while(0); \
__wine_pop_frame( &__f.frame ); \
break; \
} else { \
__f.frame.Handler = __wine_exception_ctx_handler; \
__f.u.filter_ctx = (func); \
__f.ctx = context; \
if (sigsetjmp( __f.jmp, 0 )) { \
const __WINE_FRAME * const __eptr __attribute__((unused)) = &__f; \
do {
/* convenience handler for page fault exceptions */
#define __EXCEPT_PAGE_FAULT \
} while(0); \
@ -175,9 +197,25 @@ extern DWORD __wine_finally_handler( EXCEPTION_RECORD *record,
} \
} while (0);
#define __FINALLY_CTX(func, context) \
} while(0); \
__wine_pop_frame( &__f.frame ); \
(func)(1, context); \
break; \
} else { \
__f.frame.Handler = __wine_finally_ctx_handler; \
__f.u.finally_func_ctx = (func); \
__f.ctx = context; \
__wine_push_frame( &__f.frame ); \
__first = 0; \
} \
} while (0);
typedef LONG (CALLBACK *__WINE_FILTER)(PEXCEPTION_POINTERS);
typedef LONG (CALLBACK *__WINE_FILTER_CTX)(PEXCEPTION_POINTERS, void*);
typedef void (CALLBACK *__WINE_FINALLY)(BOOL);
typedef void (CALLBACK *__WINE_FINALLY_CTX)(BOOL, void*);
#define GetExceptionInformation() (__eptr)
#define GetExceptionCode() (__eptr->ExceptionRecord->ExceptionCode)
@ -190,9 +228,12 @@ typedef struct __tagWINE_FRAME
{
/* exception data */
__WINE_FILTER filter;
__WINE_FILTER_CTX filter_ctx;
/* finally data */
__WINE_FINALLY finally_func;
__WINE_FINALLY_CTX finally_func_ctx;
} u;
void *ctx;
sigjmp_buf jmp;
/* hack to make GetExceptionCode() work in handler */
DWORD ExceptionCode;