!1027 Panic支持ExcHook

Merge pull request !1027 from zhangdengyu/supportPanicHook

kernel/src/los_init.c

@@ -114,6 +114,7 @@ LITE_OS_SEC_TEXT_INIT VOID LOS_Panic(const CHAR *fmt, ...)
     va_start(ap, fmt);
     PRINT_ERR(fmt, ap);
     va_end(ap);
+    OsDoExcHook(EXC_PANIC);
 #if (LOSCFG_BACKTRACE_TYPE != 0)
     LOS_BackTrace();
 #endif

utils/los_debug.h

@@ -74,6 +74,7 @@ typedef struct {
 typedef enum {
     EXC_REBOOT,
     EXC_ASSERT,
+    EXC_PANIC,
     EXC_STACKOVERFLOW,
     EXC_INTERRUPT,
     EXC_TYPE_END