fix: Log fatal force flush

Summary:

Test Plan:

Module.mk

@@ -192,6 +192,7 @@ include src/main/popnhook1/Module.mk
 include src/main/popnio/Module.mk
 include src/main/procmon/Module.mk
 include src/main/pcbidgen/Module.mk
+include src/main/sdk-hook/Module.mk
 include src/main/sdvxhook/Module.mk
 include src/main/sdvxhook2-cn/Module.mk
 include src/main/sdvxhook2/Module.mk
@@ -280,6 +281,7 @@ $(zipdir)/iidx-09-to-12.zip: \
 		dist/iidx/iidxhook-10.conf \
 		dist/iidx/iidxhook-11.conf \
 		dist/iidx/iidxhook-12.conf \
+		dist/iidx/inject-09.xml \
 		dist/iidx/vefx.txt \
 		build/bin/indep-32/iidx-irbeat-patch.exe \
 		dist/iidx/iidx-irbeat-patch-09.bat \

src/main/iface-core/log.h

@@ -86,9 +86,18 @@
  * @param ... Additional arguments according to the specified arguments in the
  *            printf format string
  */
+// Additional empty log statement to trigger flush on some sinks.
+// Otherwise, the last message might get lost
 #define log_fatal(...)                                      \
     do {                                                    \
+        _bt_core_log_api.v1.fatal(                          \
+            LOG_MODULE,                                     \
+            "%s:%d: function `%s'",                         \
+            __FILE__,                                       \
+            __LINE__,                                       \
+            __FUNCTION__);                                  \
         _bt_core_log_api.v1.fatal(LOG_MODULE, __VA_ARGS__); \
+        _bt_core_log_api.v1.fatal(LOG_MODULE, "");          \
         abort();                                            \
     } while (0)