oot/src/code/__osMalloc.c

#include <global.h>
#include <vt.h>

#define FILL_ALLOCBLOCK     (1 << 0)
#define FILL_FREEBLOCK      (1 << 1)
#define CHECK_FREE_BLOCK    (1 << 2)

#define NODE_MAGIC          (0x7373)

#define BLOCK_UNINIT_MAGIC      (0xAB)
#define BLOCK_UNINIT_MAGIC_32   (0xABABABAB)
#define BLOCK_ALLOC_MAGIC       (0xCD)
#define BLOCK_ALLOC_MAGIC_32    (0xCDCDCDCD)
#define BLOCK_FREE_MAGIC        (0xEF)
#define BLOCK_FREE_MAGIC_32     (0xEFEFEFEF)

OSMesg sArenaLockMsg;
u32 __osMalloc_FreeBlockTest_Enable;

bool ArenaImpl_GetFillAllocBlock(Arena* arena)
{
    return (arena->flag & FILL_ALLOCBLOCK) != 0;
}
bool ArenaImpl_GetFillFreeBlock(Arena* arena)
{
    return (arena->flag & FILL_FREEBLOCK) != 0;
}
bool ArenaImpl_GetCheckFreeBlock(Arena* arena)
{
    return (arena->flag & CHECK_FREE_BLOCK) != 0;
}

void ArenaImpl_SetFillAllocBlock(Arena* arena)
{
    arena->flag |= FILL_ALLOCBLOCK;
}
void ArenaImpl_SetFillFreeBlock(Arena* arena)
{
    arena->flag |= FILL_FREEBLOCK;
}
void ArenaImpl_SetCheckFreeBlock(Arena* arena)
{
    arena->flag |= CHECK_FREE_BLOCK;
}

void ArenaImpl_UnsetFillAllocBlock(Arena* arena)
{
    arena->flag &= ~FILL_ALLOCBLOCK;
}
void ArenaImpl_UnsetFillFreeBlock(Arena* arena)
{
    arena->flag &= ~FILL_FREEBLOCK;
}
void ArenaImpl_UnsetCheckFreeBlock(Arena* arena)
{
    arena->flag &= ~CHECK_FREE_BLOCK;
}

void ArenaImpl_SetDebugInfo(ArenaNode* node, const char* file, s32 line, Arena* arena)
{
    node->filename = file;
    node->line = line;
    node->threadId = osGetThreadId(NULL);
    node->arena = arena;
    node->time = osGetTime();
}

void ArenaImpl_LockInit(Arena* arena)
{
    osCreateMesgQueue(&arena->lock, &sArenaLockMsg, 1);
}

void ArenaImpl_Lock(Arena* arena)
{
    osSendMesg(&arena->lock, NULL, OS_MESG_BLOCK);
}

void ArenaImpl_Unlock(Arena* arena)
{
    osRecvMesg(&arena->lock, NULL, OS_MESG_BLOCK);
}

ArenaNode* ArenaImpl_GetNextBlock(ArenaNode* node)
{
    ArenaNode* ret;

    ret = node->next;
    if (ret && (!ret || (ret->magic != NODE_MAGIC)))
    {
        osSyncPrintf(VT_COL(RED, WHITE) "緊急事態！メモリリーク発見！ (block=%08x)\n" VT_RST, ret);
        ret = NULL;
        node->next = NULL;
    }

    return ret;
}

ArenaNode* ArenaImpl_GetPrevBlock(ArenaNode* node)
{
    ArenaNode* ret;

    ret = node->prev;
    if (ret && (!ret || (ret->magic != NODE_MAGIC)))
    {
        osSyncPrintf(VT_COL(RED, WHITE) "緊急事態！メモリリーク発見！ (block=%08x)\n" VT_RST, ret);
        ret = NULL;
        node->prev = NULL;
    }

    return ret;
}

ArenaNode* ArenaImpl_GetLastBlock(Arena* arena)
{
    ArenaNode* ret = NULL;
    ArenaNode* iter;

    if (arena && arena->head && arena->head->magic == NODE_MAGIC)
    {
        iter = arena->head;
        while (iter)
        {
            ret = iter;
            iter = ArenaImpl_GetNextBlock(iter);
        }
    }

    return ret;
}

void __osMallocInit(Arena* arena, void* start, u32 size)
{
    bzero(arena, sizeof(Arena));
    ArenaImpl_LockInit(arena);
    __osMallocAddBlock(arena, start, size);
    arena->isInit = true;
}

void __osMallocAddBlock(Arena* arena, void* start, s32 size)
{
    s32 diff;
    s32 size2;
    ArenaNode* firstNode;
    ArenaNode* lastNode;
    
    if (start)
    {
        firstNode = (ArenaNode*)ALIGN16((u32)start);
        diff = (s32)firstNode - (s32)start;
        size2 = (size - diff) & ~0xF;
        if (size2 > (s32)sizeof(ArenaNode))
        {
            func_80106860(firstNode, BLOCK_UNINIT_MAGIC, size2); //memset
            firstNode->next = NULL;
            firstNode->prev = NULL;
            firstNode->size = size2 - sizeof(ArenaNode);
            firstNode->isFree = true;
            firstNode->magic = NODE_MAGIC;
            ArenaImpl_Lock(arena);
            lastNode = ArenaImpl_GetLastBlock(arena);
            if (!lastNode)
            {
                arena->head = firstNode;
                arena->start = start;
            }
            else
            {
                firstNode->prev = lastNode;
                lastNode->next = firstNode;
            }
            ArenaImpl_Unlock(arena);
        }
    }
}

void ArenaImpl_RemoveAllBlocks(Arena* arena)
{
    ArenaNode* iter;
    ArenaNode* next;

    ArenaImpl_Lock(arena);
    iter = arena->head;
    while (iter)
    {
        next = ArenaImpl_GetNextBlock(iter);
        func_80106860(iter, BLOCK_UNINIT_MAGIC, iter->size + sizeof(ArenaNode)); //memset
        iter = next;
    }

    ArenaImpl_Unlock(arena);
}

void __osMallocCleanup(Arena* arena)
{
    ArenaImpl_RemoveAllBlocks(arena);
    bzero(arena, sizeof(*arena));
}

u8 __osMallocIsInitalized(Arena* arena)
{
    return arena->isInit;
}

void __osMalloc_FreeBlockTest(Arena *arena, ArenaNode *node)
{
    ArenaNode *node2;
    u32* start;
    u32* end;
    u32* iter;

    node2 = node;

    if (__osMalloc_FreeBlockTest_Enable)
    {
        start = (u32*)((u32)node + sizeof(ArenaNode));
        end = (u32*)((u32) start + node2->size);
        iter = start;
        while (iter < end)
        {
            if (*iter != BLOCK_UNINIT_MAGIC_32 && *iter != BLOCK_FREE_MAGIC_32)
            {
                osSyncPrintf(VT_COL(RED, WHITE) "緊急事態！メモリリーク検出！ (block=%08x s=%08x e=%08x p=%08x)\n" VT_RST, node, start, end, iter);
                __osDisplayArena(arena);
                return;
            }
            iter++;
        }
    }
}

//single instruction not matching, stack problem
#ifdef NON_MATCHING
void* __osMalloc_NoLockDebug(Arena *arena, u32 size, const char *file, s32 line)
{
    ArenaNode *iter;
    u32 blockSize;
    ArenaNode *newNode;
    void *ret;
    ArenaNode *next;
    u32 pad;

    ret = NULL;
    iter = arena->head;
    size = ALIGN16(size);
    while (iter)
    {
        if (iter->isFree && iter->size >= size)
        {
            if ((arena->flag & CHECK_FREE_BLOCK) != 0)
                __osMalloc_FreeBlockTest(arena, iter);

            blockSize = ALIGN16(size) + sizeof(ArenaNode);
            if (blockSize < iter->size)
            {
                newNode = (ArenaNode *)((u32)iter + blockSize);
                newNode->next = ArenaImpl_GetNextBlock(iter);
                newNode->prev = iter;
                newNode->size = iter->size - blockSize;
                newNode->isFree = true;
                newNode->magic = NODE_MAGIC;

                iter->next = newNode;
                iter->size = size;
                next = ArenaImpl_GetNextBlock(newNode);
                if (next)
                    next->prev = newNode;
            }

            iter->isFree = false;
            ArenaImpl_SetDebugInfo(iter, file, line, arena);
            ret = (void *)((u32)iter + sizeof(ArenaNode));
            if ((arena->flag & FILL_ALLOCBLOCK) != 0)
                func_80106860(ret, BLOCK_ALLOC_MAGIC, size);

            break;
        }

        iter = ArenaImpl_GetNextBlock(iter);
    }

    return ret;
}
#else
#pragma GLOBAL_ASM("asm/non_matchings/code/__osMalloc/__osMalloc_NoLockDebug.s")
#endif

void* __osMallocDebug(Arena* arena, u32 size, const char* file, s32 line)
{
    void* ret;
    ArenaImpl_Lock(arena);
    ret = __osMalloc_NoLockDebug(arena, size, file, line);
    ArenaImpl_Unlock(arena);
    return ret;
}

//stack + missing a move
#ifdef NON_MATCHING
void* __osMallocRDebug(Arena *arena, u32 size, const char *file, s32 line)
{
    ArenaNode *iter;
    u32 blockSize;
    ArenaNode *newNode;
    ArenaNode *next;
    void *ret;

    ret = NULL;
    size = ALIGN16(size);
    ArenaImpl_Lock(arena);
    iter = ArenaImpl_GetLastBlock(arena);;
    while (iter)
    {
        if (iter->isFree && iter->size >= size)
        {
            if ((arena->flag & CHECK_FREE_BLOCK) != 0)
                __osMalloc_FreeBlockTest(arena, iter);

            blockSize = ALIGN16(size) + sizeof(ArenaNode);
            if (blockSize < iter->size)
            {
                newNode = (ArenaNode *)((u32)iter + (iter->size - size));
                newNode->next = ArenaImpl_GetNextBlock(iter);
                newNode->prev = iter;
                newNode->size = size;
                newNode->magic = NODE_MAGIC;

                iter->next = newNode;
                iter->size -= blockSize;
                next = ArenaImpl_GetNextBlock(newNode);
                if (next)
                    next->prev = newNode;
            }

            iter->isFree = false;
            ArenaImpl_SetDebugInfo(iter, file, line, arena);
            ret = (void *)((u32)iter + sizeof(ArenaNode));
            if ((arena->flag & FILL_ALLOCBLOCK) != 0)
                func_80106860(ret, BLOCK_ALLOC_MAGIC, size);

            break;
        }

        iter = ArenaImpl_GetPrevBlock(iter);
    }

    ArenaImpl_Unlock(arena);
    return ret;
}
#else
#pragma GLOBAL_ASM("asm/non_matchings/code/__osMalloc/__osMallocRDebug.s")
#endif


//same diff as __osMalloc_NoLockDebug
#ifdef NON_MATCHING
void* __osMalloc_NoLock(Arena *arena, u32 size)
{
    ArenaNode *iter;
    u32 blockSize;
    ArenaNode *newNode;
    void *ret;
    ArenaNode *next;
    u32 pad;

    ret = NULL;
    iter = arena->head;
    size = ALIGN16(size);
    while (iter)
    {
        if (iter->isFree && iter->size >= size)
        {
            if ((arena->flag & CHECK_FREE_BLOCK) != 0)
                __osMalloc_FreeBlockTest(arena, iter);

            blockSize = ALIGN16(size) + sizeof(ArenaNode);
            if (blockSize < iter->size)
            {
                newNode = (ArenaNode *)((u32)iter + blockSize);
                newNode->next = ArenaImpl_GetNextBlock(iter);
                newNode->prev = iter;
                newNode->size = iter->size - blockSize;
                newNode->isFree = true;
                newNode->magic = NODE_MAGIC;

                iter->next = newNode;
                iter->size = size;
                next = ArenaImpl_GetNextBlock(newNode);
                if (next)
                    next->prev = newNode;
            }

            iter->isFree = false;
            ArenaImpl_SetDebugInfo(iter, NULL, 0, arena);
            ret = (void *)((u32)iter + sizeof(ArenaNode));
            if ((arena->flag & FILL_ALLOCBLOCK) != 0)
                func_80106860(ret, BLOCK_ALLOC_MAGIC, size);

            break;
        }

        iter = ArenaImpl_GetNextBlock(iter);
    }

    return ret;
}
#else
#pragma GLOBAL_ASM("asm/non_matchings/code/__osMalloc/__osMalloc_NoLock.s")
#endif

void* __osMalloc(Arena* arena, u32 size)
{
    void* ret;
    ArenaImpl_Lock(arena);
    ret = __osMalloc_NoLock(arena, size);
    ArenaImpl_Unlock(arena);
    return ret;
}

//same diff as __osMallocRDebug
#ifdef NON_MATCHING
void* __osMallocR(Arena *arena, u32 size)
{
    ArenaNode *iter;
    u32 blockSize;
    ArenaNode *newNode;
    ArenaNode *next;
    void *ret;

    ret = NULL;
    size = ALIGN16(size);
    ArenaImpl_Lock(arena);
    iter = ArenaImpl_GetLastBlock(arena);;
    while (iter)
    {
        if (iter->isFree && iter->size >= size)
        {
            if ((arena->flag & CHECK_FREE_BLOCK) != 0)
                __osMalloc_FreeBlockTest(arena, iter);

            blockSize = ALIGN16(size) + sizeof(ArenaNode);
            if (blockSize < iter->size)
            {
                newNode = (ArenaNode *)((u32)iter + (iter->size - size));
                newNode->next = ArenaImpl_GetNextBlock(iter);
                newNode->prev = iter;
                newNode->size = size;
                newNode->magic = NODE_MAGIC;

                iter->next = newNode;
                iter->size -= blockSize;
                next = ArenaImpl_GetNextBlock(newNode);
                if (next)
                    next->prev = newNode;
            }

            iter->isFree = false;
            ArenaImpl_SetDebugInfo(iter, NULL, 0, arena);
            ret = (void *)((u32)iter + sizeof(ArenaNode));
            if ((arena->flag & FILL_ALLOCBLOCK) != 0)
                func_80106860(ret, BLOCK_ALLOC_MAGIC, size);

            break;
        }

        iter = ArenaImpl_GetPrevBlock(iter);
    }

    ArenaImpl_Unlock(arena);
    return ret;
}
#else
#pragma GLOBAL_ASM("asm/non_matchings/code/__osMalloc/__osMallocR.s")
#endif


//small reordering
#ifdef NON_MATCHING
void __osFree_NoLock(Arena* arena, void* ptr)
{
    ArenaNode* node;
    ArenaNode* next;
    ArenaNode* prev;
    ArenaNode* newNext;

    if (ptr)
    {
        node = (ArenaNode*)((u32)ptr - sizeof(ArenaNode));
        if (node == NULL || node->magic != NODE_MAGIC)
        {
            osSyncPrintf(VT_COL(RED, WHITE) "__osFree:不正解放(%08x)\n" VT_RST, arena); //__osFree: Unauthorized release (%08x)
            return;
        }
        if (node->isFree)
        {
            osSyncPrintf(VT_COL(RED, WHITE) "__osFree:二重解放(%08x)\n" VT_RST, arena); //__osFree: Double release (%08x)
            return;
        }
        if (arena != node->arena && arena != NULL)
        {
            //__osFree:Tried to release in a different way than when it was secured (%08x:%08x)
            osSyncPrintf(VT_COL(RED, WHITE) "__osFree:確保時と違う方法で解放しようとした (%08x:%08x)\n" VT_RST, arena, node->arena);
            return;
        }

        next = ArenaImpl_GetNextBlock(node);
        prev = ArenaImpl_GetPrevBlock(node);
        node->isFree = true;
        ArenaImpl_SetDebugInfo(node, NULL, 0, arena);
        if ((arena->flag & FILL_FREEBLOCK) != 0)
        {
            func_80106860((u32)node + sizeof(ArenaNode), BLOCK_FREE_MAGIC, node->size);
        }

        newNext = node->next;
        if ((u32)next == (u32)node + sizeof(ArenaNode) + node->size && next->isFree)
        {
            newNext = ArenaImpl_GetNextBlock(next);
            if (newNext)
                newNext->prev = node;
            
            node->size += next->size + sizeof(ArenaNode);
            if ((arena->flag & FILL_FREEBLOCK) != 0)
                func_80106860(next, BLOCK_FREE_MAGIC, sizeof(ArenaNode));
            node->next = newNext;
        }
        if (prev && prev->isFree && (u32)node == (u32)prev + sizeof(ArenaNode) + prev->size)
        {
            if (newNext)
                newNext->prev = prev;
            prev->next = newNext;
            prev->size += node->size + sizeof(ArenaNode);
            if ((arena->flag & FILL_FREEBLOCK) != 0)
                func_80106860(node, BLOCK_FREE_MAGIC, sizeof(ArenaNode));
        }

    }

}
#else
#pragma GLOBAL_ASM("asm/non_matchings/code/__osMalloc/__osFree_NoLock.s")
#endif

void __osFree(Arena* arena, void* ptr)
{
    ArenaImpl_Lock(arena);
    __osFree_NoLock(arena, ptr);
    ArenaImpl_Unlock(arena);
}

//small reordering
#ifdef NON_MATCHING
void __osFree_NoLockDebug(Arena* arena, void* ptr, const char* file, s32 line)
{
    ArenaNode* node;
    ArenaNode* next;
    ArenaNode* prev;
    ArenaNode* newNext;

    if (ptr)
    {
        node = (ArenaNode*)((u32)ptr - sizeof(ArenaNode));
        if (node == NULL || node->magic != NODE_MAGIC)
        {
            osSyncPrintf(VT_COL(RED, WHITE) "__osFree:不正解放(%08x) [%s:%d ]\n" VT_RST, arena, file, line); //__osFree: Unauthorized release (%08x)
            return;
        }
        if (node->isFree)
        {
            osSyncPrintf(VT_COL(RED, WHITE) "__osFree:二重解放(%08x)\n" VT_RST, arena); //__osFree: Double release (%08x)
            return;
        }
        if (arena != node->arena && arena != NULL)
        {
            //__osFree:Tried to release in a different way than when it was secured (%08x:%08x)
            osSyncPrintf(VT_COL(RED, WHITE) "__osFree:確保時と違う方法で解放しようとした (%08x:%08x)\n" VT_RST, arena, node->arena);
            return;
        }

        next = ArenaImpl_GetNextBlock(node);
        prev = ArenaImpl_GetPrevBlock(node);
        node->isFree = true;
        ArenaImpl_SetDebugInfo(node, file, line, arena);
        if ((arena->flag & FILL_FREEBLOCK) != 0)
        {
            func_80106860((u32)node + sizeof(ArenaNode), BLOCK_FREE_MAGIC, node->size);
        }

        newNext = node->next;
        if ((u32)next == (u32)node + sizeof(ArenaNode) + node->size && next->isFree)
        {
            newNext = ArenaImpl_GetNextBlock(next);
            if (newNext)
                newNext->prev = node;
            
            node->size += next->size + sizeof(ArenaNode);
            if ((arena->flag & FILL_FREEBLOCK) != 0)
                func_80106860(next, BLOCK_FREE_MAGIC, sizeof(ArenaNode));
            node->next = newNext;
        }
        if (prev && prev->isFree && (u32)node == (u32)prev + sizeof(ArenaNode) + prev->size)
        {
            if (newNext)
                newNext->prev = prev;
            prev->next = newNext;
            prev->size += node->size + sizeof(ArenaNode);
            if ((arena->flag & FILL_FREEBLOCK) != 0)
                func_80106860(node, BLOCK_FREE_MAGIC, sizeof(ArenaNode));
        }

    }

}
#else
#pragma GLOBAL_ASM("asm/non_matchings/code/__osMalloc/__osFree_NoLockDebug.s")
#endif

void __osFreeDebug(Arena* arena, void* ptr, const char* file, s32 line)
{
    ArenaImpl_Lock(arena);
    __osFree_NoLockDebug(arena, ptr, file, line);
    ArenaImpl_Unlock(arena);
}

//small reordering, stack usage
#ifdef NON_MATCHING
void* __osRealloc(Arena* arena, void* ptr, u32 newSize)
{
    ArenaNode* node;
    ArenaNode* next;
    u32 sizeDiff;
    ArenaNode* overNext;
    ArenaNode* newNext;
    void* newAlloc;
    //-----------
    ArenaNode* next2;
    ArenaNode unk;
    ArenaNode* newNext2;
    ArenaNode* overNext2;
    //----------
    u32 newSize2;
    ArenaNode* newNext3;
    ArenaNode* overNext3;


    newSize = ALIGN16(newSize);
    osSyncPrintf("__osRealloc(%08x, %d)\n", ptr, newSize);
    ArenaImpl_Lock(arena);
    if (!ptr)
    {
        ptr = __osMalloc(arena, newSize);
    }
    else if (!newSize)
    {
        __osFree_NoLock(arena, ptr);
        ptr = NULL;
    }
    else
    {
        node = (ArenaNode*)((u32)ptr - sizeof(ArenaNode));
        if (newSize == node->size)
        {
            //Does nothing because the memory block size does not change
            osSyncPrintf("メモリブロックサイズが変わらないためなにもしません\n");
        }
        else if (node->size < newSize)
        {
            next = ArenaImpl_GetNextBlock(node);
            sizeDiff = newSize - node->size;
            if ((u32)next == ((u32)node + node->size + sizeof(ArenaNode)) && next->isFree && next->size >= sizeDiff)
            {
                //Merge because there is a free block after the current memory block
                osSyncPrintf("現メモリブロックの後ろにフリーブロックがあるので結合します\n");
                next->size -= sizeDiff;
                overNext = ArenaImpl_GetNextBlock(next);
                newNext = (ArenaNode*)((u32)next + sizeDiff);
                if (overNext)
                    overNext->prev = newNext;
                node->next = newNext;
                node->size = newSize;
                func_801068B0(newNext, next, sizeof(ArenaNode)); //memcpy
            }
            else
            {
                //Allocate a new memory block and move the contents
                osSyncPrintf("新たにメモリブロックを確保して内容を移動します\n");
                newAlloc = __osMalloc_NoLock(arena, newSize);
                if (newAlloc)
                {
                    bcopy(ptr, newAlloc, node->size);
                    __osFree_NoLock(arena, ptr);
                }
                ptr = newAlloc;
            }
        }
        else if (newSize < node->size)
        {
            next2 = ArenaImpl_GetNextBlock(node);
            if (next && next->isFree)
            {   
                //Increased free block behind current memory block
                osSyncPrintf("現メモリブロックの後ろのフリーブロックを大きくしました\n");
                unk = *next2;
                newNext2 = (u32)node + ALIGN16(newSize) + sizeof(ArenaNode);
                *newNext2 = unk;
                newNext2->size += node->size - newSize;
                node->next = newNext2;
                node->size = newSize;
                overNext2 = ArenaImpl_GetNextBlock(newNext2);
                if (overNext2)
                    overNext2->prev = newNext2;
            }
            else if (newSize + sizeof(ArenaNode) < node->size)
            {
                //Generated because there is no free block after the current memory block
                osSyncPrintf("現メモリブロックの後ろにフリーブロックがないので生成します\n");
                newSize2 = ALIGN16(newSize) + sizeof(ArenaNode);
                newNext3 = (ArenaNode*)((u32)node + newSize2);
                newNext3->next = ArenaImpl_GetNextBlock(node);
                newNext3->prev = node;
                newNext3->size = node->size - newSize2;
                newNext3->isFree = true;
                newNext3->magic = NODE_MAGIC;
                node->next = newNext3;
                node->size = newSize;
                overNext3 = ArenaImpl_GetNextBlock(newNext3);
                if (overNext3)
                    overNext3->prev = newNext3;
            }
            else
            {
                //There is no room to generate free blocks
                osSyncPrintf("フリーブロック生成するだけの空きがありません\n");
                ptr = NULL;
            }
        }

    }
    ArenaImpl_Unlock(arena);
    return ptr;
}
#else
#pragma GLOBAL_ASM("asm/non_matchings/code/__osMalloc/__osRealloc.s")
#endif

void* __osReallocDebug(Arena* arena, void* ptr, u32 newSize, const char* file, s32 line)
{
    return __osRealloc(arena, ptr, newSize);
}

void ArenaImpl_GetSizes(Arena* arena, u32* outMaxFree, u32* outFree, u32* outAlloc)
{
    ArenaNode* iter;

    ArenaImpl_Lock(arena);

    *outMaxFree = 0;
    *outFree = 0;
    *outAlloc = 0;

    iter = arena->head;
    while(iter)
    {
        if (iter->isFree)
        {
            *outFree += iter->size;
            if (*outMaxFree < iter->size)
                *outMaxFree = iter->size;
        }
        else
            *outAlloc += iter->size;

        iter = ArenaImpl_GetNextBlock(iter);
    }

    ArenaImpl_Unlock(arena);
}

//small reordering at the end
#ifdef NON_MATCHING
void __osDisplayArena(Arena* arena)
{
    u32 freeSize;
    u32 allocatedSize;
    u32 maxFree;
    ArenaNode* iter;
    ArenaNode* next;

    if (!__osMallocIsInitalized(arena))
    {
        //Arena is not initalized
        osSyncPrintf("アリーナは初期化されていません\n");
        return;
    }

    ArenaImpl_Lock(arena);

    maxFree = 0;
    freeSize = 0;
    allocatedSize = 0;

    //Arena contents (0x%08x)
    osSyncPrintf("アリーナの内容 (0x%08x)\n", arena);
    //Memory node range status size [time s ms us ns: TID: src: line]
    osSyncPrintf("メモリブロック範囲 status サイズ  [時刻  s ms us ns: TID:src:行]\n");

    iter = arena->head;
    while(iter)
    {
        if (iter && iter->magic == NODE_MAGIC)
        {
            next = iter->next;
            osSyncPrintf("%08x-%08x%c %s %08x", iter, ((u32)iter + sizeof(ArenaNode) + iter->size),
                (!next) ? '$' : (iter != next->prev ? '!' : ' '),
                iter->isFree ? "空き" : "確保", //? "Free" : "Secure"
                iter->size);
            
            if (!iter->isFree)
                osSyncPrintf(" [%016llu:%2d:%s:%d]", (iter->time*64ll)/3ull, iter->threadId, iter->filename ? iter->filename : "**NULL**", iter->line);

            osSyncPrintf("\n");

            if (iter->isFree)
            {
                freeSize += iter->size;
                if (maxFree < iter->size)
                    maxFree = iter->size;
            }
            else
            {
                allocatedSize += iter->size;
            }

            iter = next;
        }
        else
        {
            osSyncPrintf("%08x Block Invalid\n", iter);
            iter = NULL;
        }
    }

    osSyncPrintf("確保ブロックサイズの合計 0x%08x バイト\n", allocatedSize); //Total reserved node size 0x%08x bytes
    osSyncPrintf("空きブロックサイズの合計 0x%08x バイト\n", freeSize); //Total free node size 0x%08x bytes
    osSyncPrintf("最大空きブロックサイズ   0x%08x バイト\n", maxFree); //Maximum free node size 0x%08x bytes

    ArenaImpl_Unlock(arena);
}
#else
#pragma GLOBAL_ASM("asm/non_matchings/code/__osMalloc/__osDisplayArena.s")
#endif

//small reordering
#ifdef NON_MATCHING
void ArenaImpl_FaultClient(Arena* arena)
{
    u32 freeSize;
    u32 allocatedSize;
    u32 maxFree;
    ArenaNode* iter;
    ArenaNode* next;

    FaultDrawer_Printf("ARENA INFO (0x%08x)\n", arena);
    if (!__osMallocIsInitalized(arena))
    {
        FaultDrawer_Printf("Arena is uninitalized\n", arena);
        return;
    }

    maxFree = 0;
    freeSize = 0;
    allocatedSize = 0;

    FaultDrawer_Printf("Memory Block Region status size\n");

    iter = arena->head;
    while(iter)
    {
        if (iter && iter->magic == NODE_MAGIC)
        {
            next = iter->next;
            FaultDrawer_Printf("%08x-%08x%c %s %08x", iter, ((u32)iter + sizeof(ArenaNode) + iter->size),
                (!next) ? '$' : (iter != next->prev ? '!' : ' '),
                iter->isFree ? "F" : "A",
                iter->size);
            
            FaultDrawer_Printf("\n");

            if (iter->isFree)
            {
                freeSize += iter->size;
                if (maxFree < iter->size)
                    maxFree = iter->size;
            }
            else
            {
                allocatedSize += iter->size;
            }

            iter = next;
        }
        else
        {
            FaultDrawer_SetFontColor(0xF801);
            FaultDrawer_Printf("%08x Block Invalid\n", iter);
            iter = NULL;
        }
    }

    FaultDrawer_SetFontColor(0x7F1);
    FaultDrawer_Printf("Total Alloc Block Size  %08x\n", allocatedSize);
    FaultDrawer_Printf("Total Free Block Size   %08x\n", freeSize);
    FaultDrawer_Printf("Largest Free Block Size %08x\n", maxFree);
}
#else
#pragma GLOBAL_ASM("asm/non_matchings/code/__osMalloc/ArenaImpl_FaultClient.s")
#endif

u32 __osCheckArena(Arena* arena)
{
    ArenaNode *iter;
    u32 error;

    error = 0;
    ArenaImpl_Lock(arena);
    //Checking the contents of the arena. . ． (%08x)
    osSyncPrintf("アリーナの内容をチェックしています．．． (%08x)\n", arena);
    iter = arena->head;
    while(iter)
    {
        if (iter && iter->magic == NODE_MAGIC)
        {
            //Oops!! (%08x %08x)
            osSyncPrintf(VT_COL(RED, WHITE) "おおっと！！ (%08x %08x)\n" VT_RST, iter, iter->magic);
            error = 1;
            break;
        }
        iter = ArenaImpl_GetNextBlock(iter);
    }
    if (!error)
    {
        //The arena is still going well
        osSyncPrintf("アリーナはまだ、いけそうです\n");
    }
    ArenaImpl_Unlock(arena);
    return error;
}

u8 func_800FF334(Arena* arena)
{
    return arena->unk_20;
}