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ntdll/tests: Add a test for a Wow64-only syscall. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2021-07-27 13:48:53 +02:00
parent 1d457b14a1
commit a9828988e9
1 changed files with 26 additions and 15 deletions
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41
dlls/ntdll/tests/wow64.c
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@ -1176,24 +1176,16 @@ static void test_iosb(void)
static NTSTATUS invoke_syscall( const char *name, ULONG args32[] )
{
NTSTATUS status;
ULONG64 args64[] = { -1, PtrToUlong( args32 ) };
ULONG64 ptr, res, func = get_proc_address64( wow64_module, "Wow64SystemServiceEx" );
BYTE syscall[32];
ULONG64 func = get_proc_address64( wow64_module, "Wow64SystemServiceEx" );
BYTE *syscall = (BYTE *)GetProcAddress( GetModuleHandleA("ntdll.dll"), name );
if (!(ptr = get_proc_address64( ntdll_module, name ))) return STATUS_NOT_IMPLEMENTED;
ok( syscall != NULL, "syscall %s not found\n", name );
if (syscall[0] == 0xb8)
args64[0] = *(DWORD *)(syscall + 1);
else
win_skip( "syscall thunk %s not recognized\n", name );
if (pNtWow64ReadVirtualMemory64)
{
HANDLE process = OpenProcess( PROCESS_ALL_ACCESS, FALSE, GetCurrentProcessId() );
status = pNtWow64ReadVirtualMemory64( process, ptr, syscall, sizeof(syscall), &res );
ok( !status, "NtWow64ReadVirtualMemory64 failed %x\n", status );
if (syscall[0] == 0x4c && syscall[1] == 0x8b && syscall[2] == 0xd1 && syscall[3] == 0xb8)
args64[0] = *(DWORD *)(syscall + 4);
else
win_skip( "syscall thunk not recognized\n" );
NtClose( process );
}
return call_func64( func, ARRAY_SIZE(args64), args64 );
}
@ -1262,6 +1254,25 @@ static void test_syscalls(void)
status = NtClose( event );
ok( !status, "NtClose failed %x\n", status );
if (pNtWow64ReadVirtualMemory64)
{
TEB64 *teb64 = (TEB64 *)NtCurrentTeb()->GdiBatchCount;
PEB64 peb64, peb64_2;
ULONG64 res, res2;
HANDLE process = OpenProcess( PROCESS_ALL_ACCESS, FALSE, GetCurrentProcessId() );
ULONG args32[] = { HandleToLong( process ), (ULONG)teb64->Peb, teb64->Peb >> 32,
PtrToUlong(&peb64_2), sizeof(peb64_2), 0, PtrToUlong(&res2) };
ok( process != 0, "failed to open current process %u\n", GetLastError() );
status = pNtWow64ReadVirtualMemory64( process, teb64->Peb, &peb64, sizeof(peb64), &res );
ok( !status, "NtWow64ReadVirtualMemory64 failed %x\n", status );
status = invoke_syscall( "NtWow64ReadVirtualMemory64", args32 );
ok( !status, "NtWow64ReadVirtualMemory64 failed %x\n", status );
ok( res2 == res, "wrong len %s / %s\n", wine_dbgstr_longlong(res), wine_dbgstr_longlong(res2) );
ok( !memcmp( &peb64, &peb64_2, res ), "data is different\n" );
NtClose( process );
}
}
static void test_cpu_area(void)