Bring our own chainloader for *hax

2016-09-23 18:07:45 +02:00
parent 083806bfc9
commit 5196869634
36 changed files with 8818 additions and 161 deletions
--- a/haxloader/source/main.c
+++ b/haxloader/source/main.c
@@ -0,0 +1,83 @@
+/*
+*   This pathFile is part of Luma3DS
+*   Copyright (C) 2016 Aurora Wright, TuxSH
+*
+*   This program is free software: you can redistribute it and/or modify
+*   it under the terms of the GNU General Public License as published by
+*   the Free Software Foundation, either version 3 of the License, or
+*   (at your option) any later version.
+*
+*   This program is distributed in the hope that it will be useful,
+*   but WITHOUT ANY WARRANTY; without even the implied warranty of
+*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*   GNU General Public License for more details.
+*
+*   You should have received a copy of the GNU General Public License
+*   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*
+*   Additional Terms 7.b of GPLv3 applies to this pathFile: Requiring preservation of specified
+*   reasonable legal notices or author attributions in that material or in the Appropriate Legal
+*   Notices displayed by works containing it.
+*/
+
+#include "memory.h"
+#include "cache.h"
+#include "types.h"
+#include "fatfs/ff.h"
+#include "../../build/bundled.h"
+
+static FATFS fs;
+
+void main()
+{
+    if(f_mount(&fs, "0:", 0) == FR_OK)
+    {
+        u32 *loaderAddress = (u32 *)0x24FFFF00;
+        u8 *payloadAddress = (u8 *)0x24F00000;
+        FIL pathFile,
+            payload;
+        bool useDefault = true;
+
+        memcpy(loaderAddress, loader_bin, loader_bin_size);
+
+        if(f_open(&pathFile, "/luma/path.txt", FA_READ) == FR_OK)
+        {
+            u32 pathSize = f_size(&pathFile);
+
+            if(pathSize > 5 && pathSize < 40)
+            {
+                char path[pathSize];
+                unsigned int read;
+                f_read(&pathFile, path, pathSize, &read);
+                if(path[pathSize - 1] == 0xA) pathSize--;
+                if(path[pathSize - 1] == 0xD) pathSize--;
+
+                if(pathSize > 5 && pathSize < 38 && path[0] == '/' && memcmp(&path[pathSize - 4], ".bin", 4) == 0)
+                {
+                    path[pathSize] = 0;
+                    useDefault = f_open(&payload, path, FA_READ) == FR_OK;
+                }
+            }
+
+            f_close(&pathFile);
+        }
+
+        if(!useDefault) f_open(&payload, "arm9loaderhax.bin", FA_READ);
+
+        u32 payloadSize = f_size(&payload);
+
+        if(payloadSize > 0)
+        {
+            unsigned int read;
+            f_read(&payload, payloadAddress, payloadSize, &read);
+            loaderAddress[1] = payloadSize;
+
+            flushDCacheRange(loaderAddress, loader_bin_size);
+            flushICacheRange(loaderAddress, loader_bin_size);
+
+            ((void (*)())loaderAddress)();
+        }
+    }
+
+    while(true);
+}