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Use custom function to check exp heap

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This commit is contained in:
Maschell 2024-04-26 23:32:39 +02:00
parent cca22cabfb
commit bf99541449
2 changed files with 71 additions and 5 deletions
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7
source/main.cpp
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@ -82,6 +82,9 @@ WUMS_INITIALIZE(args) {
}
WUMS_APPLICATION_STARTS() {
#ifdef DEBUG
initLogging();
#endif
OSReport("Running MemoryMappingModule " VERSION VERSION_EXTRA "\n");
MemoryMapping_checkHeaps();
@ -89,10 +92,6 @@ WUMS_APPLICATION_STARTS() {
// Now we can update the pointer with the "real" functions
gMEMAllocFromDefaultHeapExForThreads = MEMAllocFromDefaultHeapEx;
gMEMFreeToDefaultHeapForThreads = MEMFreeToDefaultHeap;
#ifdef DEBUG
initLogging();
#endif
}

69
source/memory_mapping.cpp
View File

@ -591,6 +591,73 @@ void *MemoryMapping_allocEx(uint32_t size, int32_t align, bool videoOnly) {
return res;
}
bool CheckMemExpHeapBlock(MEMExpHeap *heap, MEMExpHeapBlockList *block, uint32_t tag, const char *listName, uint32_t &totalSizeOut) {
MEMExpHeapBlock *prevBlock = nullptr;
for (auto *cur = block->head; cur != nullptr; cur = cur->next) {
if (cur->prev != prevBlock) {
DEBUG_FUNCTION_LINE_ERR("[Exp Heap Check] \"%s\" prev is invalid. expected %08X actual %08X", listName, prevBlock, cur->prev);
return false;
}
if (cur < heap->header.dataStart || cur > heap->header.dataEnd || ((uint32_t) cur + sizeof(MEMExpHeapBlock) + cur->blockSize) > (uint32_t) heap->header.dataEnd) {
DEBUG_FUNCTION_LINE_ERR("[Exp Heap Check] Block is not inside heap. block: %08X size %d; heap start %08X heap end %08X", cur, sizeof(MEMExpHeapBlock) + cur->blockSize, heap->header.dataStart, heap->header.dataEnd);
return false;
}
if (cur->tag != tag) {
DEBUG_FUNCTION_LINE_ERR("[Exp Heap Check] Invalid block tag expected %04X, actual %04X", tag, cur->tag);
return false;
}
totalSizeOut = totalSizeOut + cur->blockSize + (cur->attribs >> 8 & 0x7fffff) + sizeof(MEMExpHeapBlock);
prevBlock = cur;
}
if (prevBlock != block->tail) {
DEBUG_FUNCTION_LINE_ERR("[Exp Heap Check] \"%s\" tail is unexpected! expected %08X, actual %08X", listName, heap->usedList.tail, prevBlock);
return false;
}
return true;
}
bool CheckMemExpHeapCore(MEMExpHeap *heap) {
uint32_t totalSize = 0;
#pragma GCC diagnostic ignored "-Waddress-of-packed-member"
if (!CheckMemExpHeapBlock(heap, &heap->usedList, 0x5544, "used", totalSize)) {
return false;
}
#pragma GCC diagnostic ignored "-Waddress-of-packed-member"
if (!CheckMemExpHeapBlock(heap, &heap->freeList, 0x4652, "free", totalSize)) {
return false;
}
if (totalSize != (uint32_t) heap->header.dataEnd - (uint32_t) heap->header.dataStart) {
DEBUG_FUNCTION_LINE_ERR("[Exp Heap Check] heap size is unexpected! expected %08X, actual %08X", (uint32_t) heap->header.dataEnd - (uint32_t) heap->header.dataStart, totalSize);
return false;
}
return true;
}
bool CheckMemExpHeap(MEMExpHeap *heap) {
OSMemoryBarrier();
if (heap->header.tag != MEM_EXPANDED_HEAP_TAG) {
DEBUG_FUNCTION_LINE_ERR("[Exp Heap Check] Invalid heap handle. - %08X", heap->header.tag);
return false;
}
if (heap->header.flags & MEM_HEAP_FLAG_USE_LOCK) {
#pragma GCC diagnostic ignored "-Waddress-of-packed-member"
OSUninterruptibleSpinLock_Acquire(&(heap->header).lock);
}
auto result = CheckMemExpHeapCore(heap);
if (heap->header.flags & MEM_HEAP_FLAG_USE_LOCK) {
#pragma GCC diagnostic ignored "-Waddress-of-packed-member"
OSUninterruptibleSpinLock_Release(&(heap->header).lock);
}
return result;
}
void MemoryMapping_checkHeaps() {
OSLockMutex(&allocMutex);
for (int32_t i = 0; /* waiting for a break */; i++) {
@ -598,7 +665,7 @@ void MemoryMapping_checkHeaps() {
break;
}
auto heapHandle = (MEMHeapHandle) mem_mapping[i].effective_start_address;
if (!MEMCheckExpHeap(heapHandle, MEM_EXP_HEAP_CHECK_FLAGS_LOG_ERRORS)) {
if (!CheckMemExpHeap(reinterpret_cast<MEMExpHeap *>(heapHandle))) {
DEBUG_FUNCTION_LINE_ERR("MemoryMapping heap %08X (index %d) is corrupted.", heapHandle, i);
#ifdef DEBUG
OSFatal("MemoryMappingModule: Heap is corrupted");