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ntdll: Load wow64.dll in 64-bit Wow64 processes. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2021-07-21 14:52:58 +02:00
parent 8337998d25
commit c4b194f4d9
1 changed files with 46 additions and 8 deletions
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54
dlls/ntdll/loader.c
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@ -3681,7 +3681,41 @@ static void load_global_options(void)
} }
#ifndef _WIN64
#ifdef _WIN64
static void (WINAPI *pWow64LdrpInitialize)( CONTEXT *ctx );
static void init_wow64( CONTEXT *context )
{
if (!imports_fixup_done)
{
HMODULE wow64;
WINE_MODREF *wm;
NTSTATUS status;
static const WCHAR wow64_path[] = L"C:\\windows\\system32\\wow64.dll";
if ((status = load_dll( NULL, wow64_path, NULL, 0, &wm )))
{
ERR( "could not load %s, status %x\n", debugstr_w(wow64_path), status );
NtTerminateProcess( GetCurrentProcess(), status );
}
wow64 = wm->ldr.DllBase;
#define GET_PTR(name) \
if (!(p ## name = RtlFindExportedRoutineByName( wow64, #name ))) ERR( "failed to load %s\n", #name )
GET_PTR( Wow64LdrpInitialize );
#undef GET_PTR
imports_fixup_done = TRUE;
}
RtlLeaveCriticalSection( &loader_section );
pWow64LdrpInitialize( context );
}
#else
void *Wow64Transition = NULL; void *Wow64Transition = NULL;
static void map_wow64cpu(void) static void map_wow64cpu(void)
@ -3712,13 +3746,13 @@ static void map_wow64cpu(void)
NtClose( file ); NtClose( file );
} }
static void init_wow64(void) static void init_wow64( CONTEXT *context )
{ {
PEB *peb = NtCurrentTeb()->Peb; PEB *peb = NtCurrentTeb()->Peb;
PEB64 *peb64; PEB64 *peb64 = UlongToPtr( NtCurrentTeb64()->Peb );
if (Wow64Transition) return; /* already initialized */
if (!NtCurrentTeb64()) return;
peb64 = UlongToPtr( NtCurrentTeb64()->Peb );
peb64->OSMajorVersion = peb->OSMajorVersion; peb64->OSMajorVersion = peb->OSMajorVersion;
peb64->OSMinorVersion = peb->OSMinorVersion; peb64->OSMinorVersion = peb->OSMinorVersion;
peb64->OSBuildNumber = peb->OSBuildNumber; peb64->OSBuildNumber = peb->OSBuildNumber;
@ -3791,14 +3825,14 @@ void WINAPI LdrInitializeThunk( CONTEXT *context, ULONG_PTR unknown2, ULONG_PTR
init_user_process_params(); init_user_process_params();
load_global_options(); load_global_options();
version_init(); version_init();
#ifndef _WIN64
init_wow64();
#endif
wm = build_main_module(); wm = build_main_module();
wm->ldr.LoadCount = -1; wm->ldr.LoadCount = -1;
build_ntdll_module(); build_ntdll_module();
if (NtCurrentTeb()->WowTebOffset) init_wow64( context );
if ((status = load_dll( NULL, L"kernel32.dll", NULL, 0, &kernel32 )) != STATUS_SUCCESS) if ((status = load_dll( NULL, L"kernel32.dll", NULL, 0, &kernel32 )) != STATUS_SUCCESS)
{ {
MESSAGE( "wine: could not load kernel32.dll, status %x\n", status ); MESSAGE( "wine: could not load kernel32.dll, status %x\n", status );
@ -3831,6 +3865,10 @@ void WINAPI LdrInitializeThunk( CONTEXT *context, ULONG_PTR unknown2, ULONG_PTR
} }
else wm = get_modref( NtCurrentTeb()->Peb->ImageBaseAddress ); else wm = get_modref( NtCurrentTeb()->Peb->ImageBaseAddress );
#ifdef _WIN64
if (NtCurrentTeb()->WowTebOffset) init_wow64( context );
#endif
RtlAcquirePebLock(); RtlAcquirePebLock();
InsertHeadList( &tls_links, &NtCurrentTeb()->TlsLinks ); InsertHeadList( &tls_links, &NtCurrentTeb()->TlsLinks );
RtlReleasePebLock(); RtlReleasePebLock();