port: wrap malloc & co

in case we'll need allocation stats or something later

port/include/system.h

@@ -10,4 +10,8 @@ void sysFatalError(const char *fmt, ...) __attribute__((noreturn));
 
 void sysGetExecutablePath(char *outPath, const u32 outLen);
 
+void *sysMemAlloc(const u32 size);
+void *sysMemZeroAlloc(const u32 size);
+void sysMemFree(void *ptr);
+
 #endif

port/src/fs.c

@@ -78,7 +78,7 @@ void *fsFileLoad(const char *name, u32 *outSize)
 
 	void *buf = NULL;
 	if (size) {
-		buf = calloc(1, size + 1); // sick hack for a free null terminator
+		buf = sysMemZeroAlloc(size + 1); // sick hack for a free null terminator
 		if (!buf) {
 			fprintf(stderr, "fsFileLoad: could not alloc %d bytes for file: %s\n", size, fullName);
 			fclose(f);

port/src/main.c

@@ -68,7 +68,7 @@ int main(int argc, const char **argv)
 	g_OsMemSize = osGetMemSize();
 
 	g_MempHeapSize = g_OsMemSize;
-	g_MempHeap = calloc(1, g_MempHeapSize);
+	g_MempHeap = sysMemZeroAlloc(g_MempHeapSize);
 	if (!g_MempHeap) {
 		sysFatalError("Could not alloc %u bytes for memp heap.", g_MempHeapSize);
 	}

port/src/romdata.c

@@ -149,7 +149,7 @@ static inline void romdataLoadRom(void)
 		sysFatalError("Data segment too small (%u), need at least %u.", dataSegLen, ROMDATA_FILES_OFS);
 	}
 
-	u8 *dataSeg = calloc(1, dataSegLen);
+	u8 *dataSeg = sysMemAlloc(dataSegLen);
 	if (!dataSeg) {
 		sysFatalError("Could not allocate %u bytes for data segment.", dataSegLen);
 	}

port/src/system.c

@@ -65,3 +65,18 @@ void sysGetExecutablePath(char *outPath, const u32 outLen)
 	}
 	SDL_free(sdlPath);
 }
+
+void *sysMemAlloc(const u32 size)
+{
+	return malloc(size);
+}
+
+void *sysMemZeroAlloc(const u32 size)
+{
+	return calloc(1, size);
+}
+
+void sysMemFree(void *ptr)
+{
+	free(ptr);
+}