match JGadget hashcode

config/MarioClub_us/dol_slices.yml

@@ -115,6 +115,9 @@ libs/JSystem/JUtility/JUTXfb.cpp:
 libs/JSystem/JUtility/JUTFontData_Ascfont_fix12.s:
     .rodata: [0x80362160, 0x803662c0]
 
+libs/JSystem/JGadget/hashcode.cpp:
+    .text: [0x8007853c, 0x800785a4]
+
 libs/JSystem/JSupport/JSUInputStream.cpp:
     .text: [0x80078780, 0x80078b2c]
     .rodata: [0x80366778, 0x80366798]

config/Release_eu/dol_slices.yml

@@ -181,6 +181,9 @@ libs/JSystem/JSupport/JSUFileStream.cpp:
     .text: [0x80017e94, 0x800180b4]
     .data: [0x80348018, 0x80348040]
 
+libs/JSystem/JGadget/hashcode.cpp:
+    .text: [0x800180b4, 0x8001811c]
+
 libs/JSystem/JUtility/JUTAssert.cpp:
     .text: [0x800182a0, 0x800185a0]
     .bss: [0x8036df80, 0x8036e0c0]

config/Release_eu/symbols.yml

@@ -472,13 +472,18 @@ global:
   0x80017e84: getLength__20JSUMemoryInputStreamCFv
   0x80017e8c: getPosition__20JSUMemoryInputStreamCFv
   0x80347ff0: __vt__20JSUMemoryInputStream
-  # JSUFileInputStream.cpp
+  # JSUFileStream.cpp
   0x80017e94: __ct__18JSUFileInputStreamFP7JKRFile
   0x80017ed8: readData__18JSUFileInputStreamFPvl
   0x80017fa4: seekPos__18JSUFileInputStreamFl17JSUStreamSeekFrom
   0x8001807c: getLength__18JSUFileInputStreamCFv
   0x800180ac: getPosition__18JSUFileInputStreamCFv
   0x80348018: __vt__18JSUFileInputStream
+
+  # JGadget
+  # hashcode.cpp
+  0x800180b4: getHashCode__7JGadgetFPCc
+  
   # JUtility
   # JUTAssert.cpp
   0x800182a0: create__12JUTAssertionFv

include/JSystem/JGadget/hashcode.h

@@ -0,0 +1,37 @@
+#ifndef JSYSTEM_HASHCODE_H
+#define JSYSTEM_HASHCODE_H
+
+#include "types.h"
+
+namespace JGadget
+{
+    u32 getHashCode(const char *, u32);
+    u32 getHashCode(const char *);
+    
+    namespace
+    {
+        template <typename T>
+        struct TPRIsEnd_value_
+        {
+            TPRIsEnd_value_()
+            {
+                val = 0;
+            }
+            T val;
+        };
+
+        template <typename T, typename U>
+        static u32 getHashCode_(const char *pName, U end)
+        {
+            u32 hash = 0;
+
+            for (; *pName != end.val; pName++)
+            {
+                hash = *pName + hash * 31;
+            }
+            return hash;
+        }
+    }
+}
+
+#endif

libs/JSystem/JGadget/hashcode.cpp

@@ -0,0 +1,11 @@
+#include "JSystem/JGadget/hashcode.h"
+
+u32 JGadget::getHashCode(const char *, u32) 
+{
+    // UNUSED
+}
+
+u32 JGadget::getHashCode(const char *data)
+{
+    return getHashCode_<char>(data, TPRIsEnd_value_<char>());
+}