/* Except handler stores pointer to exception pointers here */
PSEH3$_EXCEPTION_POINTERS volatile ExceptionPointers;
+ /* Except handle stores the exception code here */
+ unsigned long ExceptionCode;
+
/* Registers that we need to save */
unsigned long Esp;
unsigned long Ebp;
/* This attribute allows automatic cleanup of the registered frames */
#define _SEH3$_AUTO_CLEANUP __attribute__((cleanup(_SEH3$_AutoCleanup)))
-/* CLANG specific definitions! */
-#ifdef __clang__
-
-/* CLANG thinks it is smart and optimizes the alloca away if it is 0 and with it the use of a frame register */
-#define _SEH3$_EnforceFramePointer() asm volatile ("#\n" : : "m"(*(char*)__builtin_alloca(4)) : "%esp", "memory")
-
-/* CLANG doesn't have asm goto! */
-#define _SEH3$_ASM_GOTO(_Label, ...)
-
int
__attribute__((regparm(3)))
__attribute__((returns_twice))
const SEH3$_SCOPE_TABLE* ScopeTable,
void* AllocaFrame);
+int
+__attribute__((regparm(3)))
+__attribute__((returns_twice))
+_SEH3$_RegisterTryLevelWithNonVolatiles(
+ volatile SEH3$_REGISTRATION_FRAME* RegistrationFrame,
+ const SEH3$_SCOPE_TABLE* ScopeTable,
+ void* AllocaFrame);
+
+/* CLANG specific definitions! */
+#ifdef __clang__
+
+/* CLANG thinks it is smart and optimizes the alloca away if it is 0 and with it the use of a frame register */
+#define _SEH3$_EnforceFramePointer() asm volatile ("#\n" : : "m"(*(char*)__builtin_alloca(4)) : "%esp", "memory")
+
+/* CLANG doesn't have asm goto! */
+#define _SEH3$_ASM_GOTO(...)
+
#define _SEH3$_RegisterFrame_(_TrylevelFrame, _DataTable) \
do { \
int result = _SEH3$_RegisterFrameWithNonVolatiles(_TrylevelFrame, _DataTable, __builtin_alloca(0)); \
} \
} while(0)
-int
-__attribute__((regparm(3)))
-__attribute__((returns_twice))
-_SEH3$_RegisterTryLevelWithNonVolatiles(
- volatile SEH3$_REGISTRATION_FRAME* RegistrationFrame,
- const SEH3$_SCOPE_TABLE* ScopeTable,
- void* AllocaFrame);
-
#define _SEH3$_RegisterTryLevel_(_TrylevelFrame, _DataTable) \
do { \
int result = _SEH3$_RegisterTryLevelWithNonVolatiles(_TrylevelFrame, _DataTable, __builtin_alloca(0)); \
/* This will make GCC use ebp, even if it was disabled by -fomit-frame-pointer */
#define _SEH3$_EnforceFramePointer() asm volatile ("#\n" : : "m"(*(char*)__builtin_alloca(0)) : "%esp", "memory")
-#define _SEH3$_ASM_GOTO(_Label, ...) asm goto ("#\n" : : : "memory", ## __VA_ARGS__ : _Label)
+#define _SEH3$_ASM_GOTO(...) asm goto ("#\n" : : : "memory" : __VA_ARGS__)
#ifdef __cplusplus
#define _SEH3$_CALL_WRAPPER(_Function, _TrylevelFrame, _DataTable) \
- asm goto ("leal %0, %%eax\n" \
- "leal %1, %%edx\n" \
- "call " #_Function "WithStackLayout\n" \
+ asm goto ("leal %0, %%eax\n\t" \
+ "leal %1, %%edx\n\t" \
+ "call " #_Function "WithStackLayout" \
: \
- : "m" (*(_TrylevelFrame)), "m" (*(_DataTable)), "c"(__builtin_alloca(0)) \
+ : "m" (*(_TrylevelFrame)), "m" (*(_DataTable)), "c" (__builtin_alloca(0)), "p" (_SEH3$_RegisterFrameWithNonVolatiles) \
: "eax", "edx", "memory" \
- : _SEH3$_l_HandlerTarget, _SEH3$_l_FilterOrFinally)
+ : _SEH3$_l_BeforeTry, _SEH3$_l_HandlerTarget, _SEH3$_l_OnException, _SEH3$_l_BeforeFilterOrFinally, _SEH3$_l_FilterOrFinally)
#else
#define _SEH3$_CALL_WRAPPER(_Function, _TrylevelFrame, _DataTable) \
- asm goto ("leal %0, %%eax\n" \
- "leal %1, %%edx\n" \
- "call " #_Function "\n" \
+ asm goto ("leal %0, %%eax\n\t" \
+ "leal %1, %%edx\n\t" \
+ "call " #_Function \
: \
- : "m" (*(_TrylevelFrame)), "m" (*(_DataTable)) \
+ : "m" (*(_TrylevelFrame)), "m" (*(_DataTable)), "p" (_SEH3$_RegisterFrameWithNonVolatiles) \
: "eax", "edx", "ecx", "memory" \
- : _SEH3$_l_HandlerTarget)
+ : _SEH3$_l_BeforeTry, _SEH3$_l_HandlerTarget, _SEH3$_l_OnException, _SEH3$_l_BeforeFilterOrFinally, _SEH3$_l_FilterOrFinally)
#endif
/* This is an asm wrapper around _SEH3$_RegisterFrame */
around into places that are never executed. */
#define _SEH3$_SCARE_GCC() \
void *plabel; \
- _SEH3$_ASM_GOTO(_SEH3$_l_BeforeTry); \
- _SEH3$_ASM_GOTO(_SEH3$_l_HandlerTarget); \
- _SEH3$_ASM_GOTO(_SEH3$_l_OnException); \
- asm volatile ("#" : "=a"(plabel) : "p"(&&_SEH3$_l_BeforeTry), "p"(&&_SEH3$_l_HandlerTarget), "p"(&&_SEH3$_l_OnException) \
+ _SEH3$_ASM_GOTO(_SEH3$_l_BeforeTry, _SEH3$_l_HandlerTarget, _SEH3$_l_OnException, _SEH3$_l_BeforeFilterOrFinally, _SEH3$_l_FilterOrFinally); \
+ asm volatile ("#" : "=a"(plabel) : "p"(&&_SEH3$_l_BeforeTry), "p"(&&_SEH3$_l_HandlerTarget), "p"(&&_SEH3$_l_OnException), "p"(&&_SEH3$_l_FilterOrFinally) \
: "ebx", "ecx", "edx", "esi", "edi", "flags", "memory" ); \
goto _SEH3$_l_OnException;
/* On invocation, the AllocaFrame field is loaded with the return esp value */
#define _SEH3$_NESTED_FUNC_RETURN(_Result) \
/* Restore esp and return to the caller */ \
- asm volatile ("movl %[FixedEsp], %%esp\nret\n" \
- : : "a"(_Result), [FixedEsp]"m"(_SEH3$_TrylevelFrame.AllocaFrame) : "ebx", "ecx", "edx", "esi", "edi", "flags", "memory")
+ asm volatile ("movl %[FixedEsp], %%esp\n\tret" \
+ : : "a" (_Result), [FixedEsp] "m" (_SEH3$_TrylevelFrame.AllocaFrame) : "ebx", "ecx", "edx", "esi", "edi", "flags", "memory")
/* The filter "function" */
#define _SEH3$_DEFINE_FILTER_FUNC(_Name, expression) \
/* Since we cannot use nested functions, we declare these globally as macros */
#define _abnormal_termination() (_SEH3$_TrylevelFrame.ExceptionPointers != 0)
-#define _exception_code() (_SEH3$_TrylevelFrame.ExceptionPointers->ExceptionRecord->ExceptionCode)
+#define _exception_code() (_SEH3$_TrylevelFrame.ExceptionCode)
#define _exception_info() (_SEH3$_TrylevelFrame.ExceptionPointers)
#else /* __cplusplus || __clang__ */
#define _SEH3$_DECLARE_EXCEPT_INTRINSICS() \
inline __attribute__((always_inline, gnu_inline)) \
- unsigned long _exception_code() { return _SEH3$_TrylevelFrame.ExceptionPointers->ExceptionRecord->ExceptionCode; }
+ unsigned long _exception_code() { return _SEH3$_TrylevelFrame.ExceptionCode; }
/* On GCC the filter function is a nested function with __fastcall calling
convention. The eax register contains a base address the function uses
#define _SEH3$_DEFINE_FILTER_FUNC(_Name, expression) \
_SEH3$_NESTED_FUNC_OPEN(_Name) \
/* Declare the intrinsics for exception filters */ \
+_Pragma("GCC diagnostic push") \
+_Pragma("GCC diagnostic ignored \"-Wshadow\"") \
inline __attribute__((always_inline, gnu_inline)) \
- unsigned long _exception_code() { return _SEH3$_TrylevelFrame.ExceptionPointers->ExceptionRecord->ExceptionCode; } \
+ unsigned long _exception_code() { return _SEH3$_TrylevelFrame.ExceptionCode; } \
inline __attribute__((always_inline, gnu_inline)) \
void * _exception_info() { return _SEH3$_TrylevelFrame.ExceptionPointers; } \
+_Pragma("GCC diagnostic pop") \
\
/* Now handle the actual filter expression */ \
return (expression); \
(void)&&_SEH3$_l_BeforeFilterOrFinally; \
(void)&&_SEH3$_l_FilterOrFinally; \
\
-_Pragma("GCC diagnostic ignored \"-Wdeclaration-after-statement\"") \
_Pragma("GCC diagnostic push") \
+_Pragma("GCC diagnostic ignored \"-Wdeclaration-after-statement\"") \
\
/* Count the try level. Outside of any __try, _SEH3$_TryLevel is 0 */ \
enum { \
_SEH3$_l_BeforeTry: (void)0; \
_SEH3$_ASM_GOTO(_SEH3$_l_OnException); \
\
-_Pragma("GCC diagnostic ignored \"-Wdeclaration-after-statement\"") \
_Pragma("GCC diagnostic push") \
+_Pragma("GCC diagnostic ignored \"-Wdeclaration-after-statement\"") \
\
/* Forward declaration of the filter function */ \
_SEH3$_DECLARE_FILTER_FUNC(_SEH3$_FilterFunction); \
\
/* Create a static data table that contains the jump target and filter function */ \
static const SEH3$_SCOPE_TABLE _SEH3$_ScopeTable = { &&_SEH3$_l_HandlerTarget, _SEH3$_FILTER(&_SEH3$_FilterFunction, (__VA_ARGS__)), _SEH3$_TryLevel, _SEH3$_HANDLER_TYPE }; \
-\
-_Pragma("GCC diagnostic pop") \
\
/* Register the registration record. */ \
if (_SEH3$_TryLevel == 1) _SEH3$_RegisterFrame_(&_SEH3$_TrylevelFrame, &_SEH3$_ScopeTable); \
\
/* Define an empty inline finally function */ \
_SEH3$_DEFINE_DUMMY_FINALLY(_SEH3$_FinallyFunction) \
-\
-_Pragma("GCC diagnostic ignored \"-Wdeclaration-after-statement\"") \
-_Pragma("GCC diagnostic push") \
\
/* Allow intrinsics for __except to be used */ \
_SEH3$_DECLARE_EXCEPT_INTRINSICS(); \
-\
-_Pragma("GCC diagnostic pop") \
\
goto _SEH3$_l_DoTry; \
\
_SEH3$_l_BeforeTry: (void)0; \
_SEH3$_ASM_GOTO(_SEH3$_l_OnException); \
\
-_Pragma("GCC diagnostic ignored \"-Wdeclaration-after-statement\"") \
_Pragma("GCC diagnostic push") \
+_Pragma("GCC diagnostic ignored \"-Wdeclaration-after-statement\"") \
\
/* Forward declaration of the finally function */ \
_SEH3$_DECLARE_FILTER_FUNC(_SEH3$_FinallyFunction); \
\
/* Create a static data table that contains the finally function */ \
static const SEH3$_SCOPE_TABLE _SEH3$_ScopeTable = { 0, _SEH3$_FINALLY(&_SEH3$_FinallyFunction), _SEH3$_TryLevel, _SEH3$_HANDLER_TYPE }; \
-\
-_Pragma("GCC diagnostic pop") \
\
/* Register the registration record. */ \
if (_SEH3$_TryLevel == 1) _SEH3$_RegisterFrame_(&_SEH3$_TrylevelFrame, &_SEH3$_ScopeTable); \
\
/* Implementation of the auto cleanup function */ \
_SEH3$_DEFINE_CLEANUP_FUNC(_SEH3$_AutoCleanup); \
+\
+_Pragma("GCC diagnostic pop") \
\
/* Close the outer scope */ \
} while (0);