More JIT handling for observers

Signed-off-by: Bob Weinand <bobwei9@hotmail.com>

Author: bwoebi

Zend/zend_observer.c

@@ -240,7 +240,7 @@ static void ZEND_FASTCALL _zend_observe_fcall_begin(zend_execute_data *execute_d
 	zend_observer_fcall_begin_specialized(execute_data, true);
 }
 
-void ZEND_FASTCALL zend_observer_fcall_begin_prechecked(zend_execute_data *execute_data, zend_observer_fcall_begin_handler *handler)
+ZEND_API void ZEND_FASTCALL zend_observer_fcall_begin_prechecked(zend_execute_data *execute_data, zend_observer_fcall_begin_handler *handler)
 {
 	zend_observer_fcall_begin_handler *possible_handlers_end = handler + zend_observers_fcall_list.count;
 

Zend/zend_observer.h

@@ -43,7 +43,7 @@ typedef struct _zend_observer_fcall_handlers {
 #define ZEND_OBSERVER_DATA(function) \
 	((zend_observer_fcall_begin_handler *)&ZEND_OP_ARRAY_EXTENSION((&(function)->common), zend_observer_fcall_op_array_extension))
 
-#define ZEND_OBSERVER_NONE_OBSERVED ((void *) 3)
+#define ZEND_OBSERVER_NONE_OBSERVED ((void *) 3) // Neither begin nor end handler present
 
 #define ZEND_OBSERVER_ENABLED (zend_observer_fcall_op_array_extension != -1)
 
@@ -78,7 +78,7 @@ ZEND_API void zend_observer_activate(void);
 ZEND_API void zend_observer_shutdown(void);
 
 ZEND_API void ZEND_FASTCALL zend_observer_fcall_begin(zend_execute_data *execute_data);
-void ZEND_FASTCALL zend_observer_fcall_begin_prechecked(zend_execute_data *execute_data, zend_observer_fcall_begin_handler *observer_data);
+ZEND_API void ZEND_FASTCALL zend_observer_fcall_begin_prechecked(zend_execute_data *execute_data, zend_observer_fcall_begin_handler *observer_data);
 
 static zend_always_inline bool zend_observer_handler_is_unobserved(zend_observer_fcall_begin_handler *handler) {
 	return *handler == ZEND_OBSERVER_NONE_OBSERVED;