Load plugins in usermode lv2 module_start

For 4.84 REX only, can be easily ported to other fws.
will look for `/dev_hdd0/game_plugin_bootloader.sprx` and start it. if you have exceptions enabled in shellcode, you'll get exceptions to find out any errors.

Author: illusionyy

8.3/4.84/REBUG/REX/SRC/lv2/include/lv2/patch.h

@@ -45,6 +45,9 @@
 #define MAKE_JUMP_VALUE(addr, to) ((0x12 << 26) | ((((to-(uint64_t)(addr))>>2)&0xFFFFFF) << 2))
 #define MAKE_CALL_VALUE(addr, to) ((0x12 << 26) | ((((to-(uint64_t)(addr))>>2)&0xFFFFFF) << 2)) | 1
 
+#define READ_JUMP_OFFSET(value) ((int32_t)(((value) & 0x03FFFFFC) << 6) >> 6)
+#define READ_CALL_OFFSET(value) ((int32_t)((((value) & ~1) & 0x03FFFFFC) << 6) >> 6)
+
 #define B(A)	MAKE_JUMP_VALUE(0, A)
 #define BL(A)	MAKE_CALL_VALUE(0, A)
 

8.3/4.84/REBUG/REX/SRC/make_stage2.bat

@@ -12,7 +12,7 @@ if not exist ..\BIN mkdir ..\BIN
 cd stage2
 
 rm -f *.o *.elf *.bin *.release *.debug *.map *.lzma ../lv2/src/*.o ../lv1/src/*.o ../debug/src/*.o
-make --silent all
+make all
 rm -f *.o *.elf *.map *.lzma ../lv2/src/*.o ../lv1/src/*.o ../debug/src/*.o
-
-pause
+cd ..
+rem pause

8.3/4.84/REBUG/REX/SRC/stage2/common.h

@@ -12,7 +12,12 @@
 
 #undef  printf
 #define printf			_debug_printf
+#if DEBUG
+#define DPRINTF(...)
+#define DPRINTF2 _debug_printf
+#else
 #define DPRINTF			_debug_printf
+#endif
 #define DPRINT_HEX		debug_print_hex
 #define DPRINT_HEX_C	debug_print_hex_c
 
@@ -120,6 +125,7 @@ static INLINE void dump_stack_trace4(uint64_t *stack, unsigned int n)
 #define fatal(s) { while(1); }
 #define printf(...)
 #define DPRINTF(...)
+#define DPRINTF2(...)
 #define DPRINT_HEX(b, s)
 #define DPRINT_HEX_C(b, s)
 #define dump_stack_trace(n)