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ntoskrnl.exe: Allocate pool memory from an executable heap. 

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=45843
Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura 2019-08-21 23:16:51 -05:00 committed by Alexandre Julliard
parent 6a6081fc93
commit da23da3952
2 changed files with 29 additions and 2 deletions
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8
dlls/ntoskrnl.exe/ntoskrnl.c
View File

@ -78,6 +78,8 @@ static DWORD request_thread;
/* tid of the client thread */
static DWORD client_tid;
static HANDLE ntoskrnl_heap;
struct wine_driver
{
DRIVER_OBJECT driver_obj;
@ -1998,7 +2000,7 @@ PVOID WINAPI ExAllocatePoolWithQuota( POOL_TYPE type, SIZE_T size )
PVOID WINAPI ExAllocatePoolWithTag( POOL_TYPE type, SIZE_T size, ULONG tag )
{
/* FIXME: handle page alignment constraints */
void *ret = HeapAlloc( GetProcessHeap(), 0, size );
void *ret = HeapAlloc( ntoskrnl_heap, 0, size );
TRACE( "%lu pool %u -> %p\n", size, type, ret );
return ret;
}
@ -2040,7 +2042,7 @@ void WINAPI ExFreePool( void *ptr )
void WINAPI ExFreePoolWithTag( void *ptr, ULONG tag )
{
TRACE( "%p\n", ptr );
HeapFree( GetProcessHeap(), 0, ptr );
HeapFree( ntoskrnl_heap, 0, ptr );
}
static void initialize_lookaside_list( GENERAL_LOOKASIDE *lookaside, PALLOCATE_FUNCTION allocate, PFREE_FUNCTION free,
@ -3067,9 +3069,11 @@ BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
#endif
KeQueryTickCount( &count ); /* initialize the global KeTickCount */
NtBuildNumber = NtCurrentTeb()->Peb->OSBuildNumber;
ntoskrnl_heap = HeapCreate( HEAP_CREATE_ENABLE_EXECUTE, 0, 0 );
break;
case DLL_PROCESS_DETACH:
if (reserved) break;
HeapDestroy( ntoskrnl_heap );
RtlRemoveVectoredExceptionHandler( handler );
break;
}

23
dlls/ntoskrnl.exe/tests/driver.c
View File

@ -1685,6 +1685,26 @@ static void WINAPI main_test_task(DEVICE_OBJECT *device, void *context)
IoCompleteRequest(irp, IO_NO_INCREMENT);
}
#if defined(__i386__) || defined(__x86_64__)
static void test_executable_pool(void)
{
static const unsigned char bytes[] =
{ 0xb8, 0xef, 0xbe, 0xad, 0xde, 0xc3 }; /* mov $0xdeadbeef,%eax ; ret */
static const ULONG tag = 0x74736574; /* test */
int (*func)(void);
int ret;
func = ExAllocatePoolWithTag(NonPagedPool, sizeof(bytes), tag);
ok(!!func, "Got NULL memory.\n");
memcpy(func, bytes, sizeof(bytes));
ret = func();
ok(ret == 0xdeadbeef, "Got %#x.\n", ret);
ExFreePoolWithTag(func, tag);
}
#endif
static NTSTATUS main_test(DEVICE_OBJECT *device, IRP *irp, IO_STACK_LOCATION *stack)
{
ULONG length = stack->Parameters.DeviceIoControl.OutputBufferLength;
@ -1735,6 +1755,9 @@ static NTSTATUS main_test(DEVICE_OBJECT *device, IRP *irp, IO_STACK_LOCATION *st
test_lookup_thread();
test_IoAttachDeviceToDeviceStack();
test_object_name();
#if defined(__i386__) || defined(__x86_64__)
test_executable_pool();
#endif
if (main_test_work_item) return STATUS_UNEXPECTED_IO_ERROR;