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ntdll/tests: Add tests for RtlWow64GetCurrentCpuArea(). 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2021-06-30 11:12:46 +02:00
parent 7700467a38
commit c9d23a15ce
1 changed files with 127 additions and 3 deletions
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130
dlls/ntdll/tests/wow64.c
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@ -34,6 +34,7 @@ static NTSTATUS (WINAPI *pNtWow64WriteVirtualMemory64)(HANDLE,ULONG64,const void
#endif
static BOOL is_wow64;
static void *code_mem;
static void init(void)
{
@ -54,6 +55,8 @@ static void init(void)
GET_PROC( NtWow64WriteVirtualMemory64 );
#endif
#undef GET_PROC
code_mem = VirtualAlloc( NULL, 65536, MEM_RESERVE | MEM_COMMIT, PAGE_EXECUTE_READWRITE );
}
static void test_process_architecture( HANDLE process, USHORT expect_machine, USHORT expect_native )
@ -463,6 +466,52 @@ static void test_cpu_area(void)
#else /* _WIN64 */
static const BYTE call_func64_code[] =
{
0x58, /* pop %eax */
0x0e, /* push %cs */
0x50, /* push %eax */
0x6a, 0x33, /* push $0x33 */
0xe8, 0x00, 0x00, 0x00, 0x00, /* call 1f */
0x83, 0x04, 0x24, 0x05, /* 1: addl $0x5,(%esp) */
0xcb, /* lret */
/* in 64-bit mode: */
0x4c, 0x87, 0xf4, /* xchg %r14,%rsp */
0x55, /* push %rbp */
0x48, 0x89, 0xe5, /* mov %rsp,%rbp */
0x56, /* push %rsi */
0x57, /* push %rdi */
0x41, 0x8b, 0x4e, 0x10, /* mov 0x10(%r14),%ecx */
0x41, 0x8b, 0x76, 0x14, /* mov 0x14(%r14),%esi */
0x67, 0x8d, 0x04, 0xcd, 0, 0, 0, 0, /* lea 0x0(,%ecx,8),%eax */
0x83, 0xf8, 0x20, /* cmp $0x20,%eax */
0x7d, 0x05, /* jge 1f */
0xb8, 0x20, 0x00, 0x00, 0x00, /* mov $0x20,%eax */
0x48, 0x29, 0xc4, /* 1: sub %rax,%rsp */
0x48, 0x83, 0xe4, 0xf0, /* and $~15,%rsp */
0x48, 0x89, 0xe7, /* mov %rsp,%rdi */
0xf3, 0x48, 0xa5, /* rep movsq */
0x48, 0x8b, 0x0c, 0x24, /* mov (%rsp),%rcx */
0x48, 0x8b, 0x54, 0x24, 0x08, /* mov 0x8(%rsp),%rdx */
0x4c, 0x8b, 0x44, 0x24, 0x10, /* mov 0x10(%rsp),%r8 */
0x4c, 0x8b, 0x4c, 0x24, 0x18, /* mov 0x18(%rsp),%r9 */
0x41, 0xff, 0x56, 0x08, /* callq *0x8(%r14) */
0x48, 0x8d, 0x65, 0xf0, /* lea -0x10(%rbp),%rsp */
0x5f, /* pop %rdi */
0x5e, /* pop %rsi */
0x5d, /* pop %rbp */
0x4c, 0x87, 0xf4, /* xchg %r14,%rsp */
0xcb, /* lret */
};
static NTSTATUS call_func64( ULONG64 func64, int nb_args, ULONG64 *args )
{
NTSTATUS (WINAPI *func)( ULONG64 func64, int nb_args, ULONG64 *args ) = code_mem;
memcpy( code_mem, call_func64_code, sizeof(call_func64_code) );
return func( func64, nb_args, args );
}
static ULONG64 main_module, ntdll_module, wow64_module, wow64cpu_module, wow64win_module;
static void enum_modules64( void (*func)(ULONG64,const WCHAR *) )
@ -514,6 +563,53 @@ done:
NtClose( process );
}
static ULONG64 get_proc_address64( ULONG64 module, const char *name )
{
IMAGE_DOS_HEADER dos;
IMAGE_NT_HEADERS64 nt;
IMAGE_EXPORT_DIRECTORY exports;
ULONG i, *names, *funcs;
USHORT *ordinals;
NTSTATUS status;
HANDLE process;
ULONG64 ret = 0;
char buffer[64];
if (!module) return 0;
process = OpenProcess( PROCESS_ALL_ACCESS, FALSE, GetCurrentProcessId() );
ok( process != 0, "failed to open current process %u\n", GetLastError() );
status = pNtWow64ReadVirtualMemory64( process, module, &dos, sizeof(dos), NULL );
ok( !status, "NtWow64ReadVirtualMemory64 failed %x\n", status );
status = pNtWow64ReadVirtualMemory64( process, module + dos.e_lfanew, &nt, sizeof(nt), NULL );
ok( !status, "NtWow64ReadVirtualMemory64 failed %x\n", status );
status = pNtWow64ReadVirtualMemory64( process, module + nt.OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress,
&exports, sizeof(exports), NULL );
ok( !status, "NtWow64ReadVirtualMemory64 failed %x\n", status );
names = calloc( exports.NumberOfNames, sizeof(*names) );
ordinals = calloc( exports.NumberOfNames, sizeof(*ordinals) );
funcs = calloc( exports.NumberOfFunctions, sizeof(*funcs) );
status = pNtWow64ReadVirtualMemory64( process, module + exports.AddressOfNames,
names, exports.NumberOfNames * sizeof(*names), NULL );
ok( !status, "NtWow64ReadVirtualMemory64 failed %x\n", status );
status = pNtWow64ReadVirtualMemory64( process, module + exports.AddressOfNameOrdinals,
ordinals, exports.NumberOfNames * sizeof(*ordinals), NULL );
ok( !status, "NtWow64ReadVirtualMemory64 failed %x\n", status );
status = pNtWow64ReadVirtualMemory64( process, module + exports.AddressOfFunctions,
funcs, exports.NumberOfFunctions * sizeof(*funcs), NULL );
ok( !status, "NtWow64ReadVirtualMemory64 failed %x\n", status );
for (i = 0; i < exports.NumberOfNames && !ret; i++)
{
status = pNtWow64ReadVirtualMemory64( process, module + names[i], buffer, sizeof(buffer), NULL );
ok( !status, "NtWow64ReadVirtualMemory64 failed %x\n", status );
if (!strcmp( buffer, name )) ret = module + funcs[ordinals[i]];
}
free( funcs );
free( ordinals );
free( names );
NtClose( process );
return ret;
}
static void check_module( ULONG64 base, const WCHAR *name )
{
if (base == (ULONG_PTR)GetModuleHandleW(0))
@ -650,6 +746,35 @@ static void test_nt_wow64(void)
NtClose( process );
}
static void test_cpu_area(void)
{
TEB64 *teb64 = (TEB64 *)NtCurrentTeb()->GdiBatchCount;
ULONG64 ptr;
NTSTATUS status;
if (!is_wow64) return;
if (!ntdll_module) return;
if ((ptr = get_proc_address64( ntdll_module, "RtlWow64GetCurrentCpuArea" )))
{
USHORT machine = 0xdead;
ULONG64 context, context_ex;
ULONG64 args[] = { (ULONG_PTR)&machine, (ULONG_PTR)&context, (ULONG_PTR)&context_ex };
status = call_func64( ptr, ARRAY_SIZE(args), args );
ok( !status, "RtlWow64GetCpuAreaInfo failed %x\n", status );
ok( machine == IMAGE_FILE_MACHINE_I386, "wrong machine %x\n", machine );
ok( context == teb64->TlsSlots[WOW64_TLS_CPURESERVED] + 4, "wrong context %s / %s\n",
wine_dbgstr_longlong(context), wine_dbgstr_longlong(teb64->TlsSlots[WOW64_TLS_CPURESERVED]) );
ok( !context_ex, "got context_ex %s\n", wine_dbgstr_longlong(context_ex) );
args[0] = args[1] = args[2] = 0;
status = call_func64( ptr, ARRAY_SIZE(args), args );
ok( !status, "RtlWow64GetCpuAreaInfo failed %x\n", status );
}
else win_skip( "RtlWow64GetCpuAreaInfo not supported\n" );
}
#endif /* _WIN64 */
@ -658,10 +783,9 @@ START_TEST(wow64)
init();
test_query_architectures();
test_peb_teb();
#ifdef _WIN64
test_cpu_area();
#else
#ifndef _WIN64
test_nt_wow64();
test_modules();
#endif
test_cpu_area();
}