Alexandre Julliard : ntdll/tests: Add tests for RtlWow64GetCurrentCpuArea().
Module: wine Branch: master Commit: c9d23a15cef7c8508bc9b82a9247b10a12d4fb49 URL: https://source.winehq.org/git/wine.git/?a=commit;h=c9d23a15cef7c8508bc9b82a9... Author: Alexandre Julliard <julliard(a)winehq.org> Date: Wed Jun 30 11:12:46 2021 +0200 ntdll/tests: Add tests for RtlWow64GetCurrentCpuArea(). Signed-off-by: Alexandre Julliard <julliard(a)winehq.org> --- dlls/ntdll/tests/wow64.c | 130 +++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 127 insertions(+), 3 deletions(-) diff --git a/dlls/ntdll/tests/wow64.c b/dlls/ntdll/tests/wow64.c index d31afa373e2..b7b63f3fd8c 100644 --- a/dlls/ntdll/tests/wow64.c +++ b/dlls/ntdll/tests/wow64.c @@ -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(); }
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Alexandre Julliard