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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
#include "common.h"
#include "gcheaputilities.h"
#include "appdomain.hpp"
// These globals are variables used within the GC and maintained
// by the EE for use in write barriers. It is the responsibility
// of the GC to communicate updates to these globals to the EE through
// GCToEEInterface::StompWriteBarrierResize and GCToEEInterface::StompWriteBarrierEphemeral.
GPTR_IMPL_INIT(uint32_t, g_card_table, nullptr);
GPTR_IMPL_INIT(uint8_t, g_lowest_address, nullptr);
GPTR_IMPL_INIT(uint8_t, g_highest_address, nullptr);
GVAL_IMPL_INIT(GCHeapType, g_heap_type, GC_HEAP_INVALID);
uint8_t* g_ephemeral_low = (uint8_t*)1;
uint8_t* g_ephemeral_high = (uint8_t*)~0;
#ifdef FEATURE_MANUALLY_MANAGED_CARD_BUNDLES
uint32_t* g_card_bundle_table = nullptr;
#endif
// This is the global GC heap, maintained by the VM.
GPTR_IMPL(IGCHeap, g_pGCHeap);
IGCHandleTable* g_pGCHandleTable = nullptr;
GcDacVars g_gc_dac_vars;
GPTR_IMPL(GcDacVars, g_gcDacGlobals);
#ifdef FEATURE_USE_SOFTWARE_WRITE_WATCH_FOR_GC_HEAP
uint8_t* g_sw_ww_table = nullptr;
bool g_sw_ww_enabled_for_gc_heap = false;
#endif // FEATURE_USE_SOFTWARE_WRITE_WATCH_FOR_GC_HEAP
gc_alloc_context g_global_alloc_context = {};
// Debug-only validation for handle.
void ValidateHandleAndAppDomain(OBJECTHANDLE handle)
{
#ifdef _DEBUG_IMPL
OBJECTREF objRef = ObjectToOBJECTREF(*(Object**)handle);
VALIDATEOBJECTREF(objRef);
IGCHandleTable *pHandleTable = GCHandleTableUtilities::GetGCHandleTable();
DWORD context = (DWORD)pHandleTable->GetHandleContext(handle);
ADIndex appDomainIndex = ADIndex(context);
AppDomain *domain = SystemDomain::GetAppDomainAtIndex(appDomainIndex);
// Access to a handle in an unloaded domain is not allowed
assert(domain != nullptr);
assert(!domain->NoAccessToHandleTable());
#if CHECK_APP_DOMAIN_LEAKS
if (g_pConfig->AppDomainLeaks() && objRef != NULL)
{
if (appDomainIndex.m_dwIndex)
{
objRef->TryAssignAppDomain(domain);
}
else
{
objRef->TrySetAppDomainAgile();
}
}
#endif // CHECK_APP_DOMAIN_LEAKS
#endif // _DEBUG_IMPL
}
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