exo: Change fatal names and add stack overflow

bootloader/hos/secmon_exo.c

@@ -331,19 +331,21 @@ static const char *get_error_desc(u32 error_desc)
 	switch (error_desc)
 	{
 	case 0x100:
-		return "IABRT";
+		return "IABRT"; // Instruction Abort.
 	case 0x101:
-		return "DABRT";
+		return "DABRT"; // Data Abort.
 	case 0x102:
-		return "PC-UA";
+		return "IUA";   // Instruction Unaligned Access.
 	case 0x103:
-		return "SP-UA";
+		return "DUA";   // Data Unaligned Access.
 	case 0x104:
-		return "TRAP";
+		return "UDF";   // Undefined Instruction.
 	case 0x106:
-		return "SE";
+		return "SYS";   // System Error.
 	case 0x301:
-		return "SVC";
+		return "SVC";   // Bad arguments or unimplemented SVC.
+	case 0xFFD:
+		return "SO";    // Stack Overflow.
 	case 0xFFE:
 		return "std::abort";
 	default:

bootloader/main.c

@@ -1127,10 +1127,10 @@ static void _patched_rcm_protection()
 }
 
 #define EXCP_EN_ADDR   0x4003FFFC
-#define  EXCP_MAGIC 0x30505645 // EVP0
+#define  EXCP_MAGIC 0x30505645      // EVP0
 #define EXCP_TYPE_ADDR 0x4003FFF8
-#define  EXCP_TYPE_RESET 0x545352 // RST
-#define  EXCP_TYPE_UNDEF 0x464455 // UDF
+#define  EXCP_TYPE_RESET 0x545352   // RST
+#define  EXCP_TYPE_UNDEF 0x464455   // UDF
 #define  EXCP_TYPE_PABRT 0x54424150 // PABT
 #define  EXCP_TYPE_DABRT 0x54424144 // DABT
 #define EXCP_LR_ADDR   0x4003FFF4

nyx/nyx_gui/nyx.c

@@ -281,10 +281,10 @@ void load_saved_configuration()
 }
 
 #define EXCP_EN_ADDR   0x4003FFFC
-#define  EXCP_MAGIC 0x30505645 // EVP0
+#define  EXCP_MAGIC 0x30505645      // EVP0
 #define EXCP_TYPE_ADDR 0x4003FFF8
-#define  EXCP_TYPE_RESET 0x545352 // RST
-#define  EXCP_TYPE_UNDEF 0x464455 // UDF
+#define  EXCP_TYPE_RESET 0x545352   // RST
+#define  EXCP_TYPE_UNDEF 0x464455   // UDF
 #define  EXCP_TYPE_PABRT 0x54424150 // PABT
 #define  EXCP_TYPE_DABRT 0x54424144 // DABT
 #define EXCP_LR_ADDR   0x4003FFF4