dlls/kernel32/tests/loader.c

   1 /*
   2  * Unit test suite for the PE loader.
   3  *
   4  * Copyright 2006 Dmitry Timoshkov
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <stdarg.h>
  22 #include <assert.h>
  23
  24 #include "windef.h"
  25 #include "winbase.h"
  26 #include "wine/test.h"
  27
  28 #define ALIGN_SIZE(size, alignment) (((size) + (alignment - 1)) & ~((alignment - 1)))
  29
  30 static const struct
  31 {
  32     WORD e_magic;      /* 00: MZ Header signature */
  33     WORD unused[29];
  34     DWORD e_lfanew;    /* 3c: Offset to extended header */
  35 } dos_header =
  36 {
  37     IMAGE_DOS_SIGNATURE, { 0 }, sizeof(dos_header)
  38 };
  39
  40 static IMAGE_NT_HEADERS nt_header =
  41 {
  42     IMAGE_NT_SIGNATURE, /* Signature */
  43     {
  44 #if defined __i386__
  45       IMAGE_FILE_MACHINE_I386, /* Machine */
  46 #elif defined __x86_64__
  47       IMAGE_FILE_MACHINE_AMD64, /* Machine */
  48 #else
  49 # error You must specify the machine type
  50 #endif
  51       1, /* NumberOfSections */
  52       0, /* TimeDateStamp */
  53       0, /* PointerToSymbolTable */
  54       0, /* NumberOfSymbols */
  55       sizeof(IMAGE_OPTIONAL_HEADER), /* SizeOfOptionalHeader */
  56       IMAGE_FILE_EXECUTABLE_IMAGE | IMAGE_FILE_DLL /* Characteristics */
  57     },
  58     { IMAGE_NT_OPTIONAL_HDR_MAGIC, /* Magic */
  59       1, /* MajorLinkerVersion */
  60       0, /* MinorLinkerVersion */
  61       0, /* SizeOfCode */
  62       0, /* SizeOfInitializedData */
  63       0, /* SizeOfUninitializedData */
  64       0, /* AddressOfEntryPoint */
  65       0x10, /* BaseOfCode, also serves as e_lfanew in the truncated MZ header */
  66       0, /* BaseOfData */
  67       0x10000000, /* ImageBase */
  68       0, /* SectionAlignment */
  69       0, /* FileAlignment */
  70       4, /* MajorOperatingSystemVersion */
  71       0, /* MinorOperatingSystemVersion */
  72       1, /* MajorImageVersion */
  73       0, /* MinorImageVersion */
  74       4, /* MajorSubsystemVersion */
  75       0, /* MinorSubsystemVersion */
  76       0, /* Win32VersionValue */
  77       sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER) + 0x1000, /* SizeOfImage */
  78       sizeof(dos_header) + sizeof(nt_header), /* SizeOfHeaders */
  79       0, /* CheckSum */
  80       IMAGE_SUBSYSTEM_WINDOWS_CUI, /* Subsystem */
  81       0, /* DllCharacteristics */
  82       0, /* SizeOfStackReserve */
  83       0, /* SizeOfStackCommit */
  84       0, /* SizeOfHeapReserve */
  85       0, /* SizeOfHeapCommit */
  86       0, /* LoaderFlags */
  87       0, /* NumberOfRvaAndSizes */
  88       { { 0 } } /* DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES] */
  89     }
  90 };
  91
  92 static IMAGE_SECTION_HEADER section =
  93 {
  94     ".rodata", /* Name */
  95     { 0x10 }, /* Misc */
  96     0, /* VirtualAddress */
  97     0x0a, /* SizeOfRawData */
  98     0, /* PointerToRawData */
  99     0, /* PointerToRelocations */
 100     0, /* PointerToLinenumbers */
 101     0, /* NumberOfRelocations */
 102     0, /* NumberOfLinenumbers */
 103     IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_MEM_READ, /* Characteristics */
 104 };
 105
 106 START_TEST(loader)
 107 {
 108     static const struct test_data
 109     {
 110         const void *dos_header;
 111         DWORD size_of_dos_header;
 112         WORD number_of_sections, size_of_optional_header;
 113         DWORD section_alignment, file_alignment;
 114         DWORD size_of_image, size_of_headers;
 115         DWORD error; /* 0 means LoadLibrary should succeed */
 116     } td[] =
 117     {
 118         { &dos_header, sizeof(dos_header),
 119           1, 0, 0, 0, 0, 0,
 120           ERROR_BAD_EXE_FORMAT
 121         },
 122         { &dos_header, sizeof(dos_header),
 123           1, sizeof(IMAGE_OPTIONAL_HEADER), 0x1000, 0x1000,
 124           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER) + 0xe00,
 125           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER),
 126           ERROR_BAD_EXE_FORMAT /* XP doesn't like too small image size */
 127         },
 128         { &dos_header, sizeof(dos_header),
 129           1, sizeof(IMAGE_OPTIONAL_HEADER), 0x1000, 0x1000,
 130           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER) + 0x1000,
 131           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER),
 132           ERROR_SUCCESS
 133         },
 134         { &dos_header, sizeof(dos_header),
 135           1, sizeof(IMAGE_OPTIONAL_HEADER), 0x1000, 0x1000,
 136           0x1f00,
 137           0x1000,
 138           ERROR_SUCCESS
 139         },
 140         { &dos_header, sizeof(dos_header),
 141           1, sizeof(IMAGE_OPTIONAL_HEADER), 0x200, 0x200,
 142           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER) + 0x1000,
 143           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER),
 144           ERROR_SUCCESS
 145         },
 146         { &dos_header, sizeof(dos_header),
 147           1, sizeof(IMAGE_OPTIONAL_HEADER), 0x200, 0x1000,
 148           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER) + 0x1000,
 149           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER),
 150           ERROR_BAD_EXE_FORMAT /* XP doesn't like aligments */
 151         },
 152         { &dos_header, sizeof(dos_header),
 153           1, sizeof(IMAGE_OPTIONAL_HEADER), 0x1000, 0x200,
 154           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER) + 0x1000,
 155           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER),
 156           ERROR_SUCCESS
 157         },
 158         { &dos_header, sizeof(dos_header),
 159           1, sizeof(IMAGE_OPTIONAL_HEADER), 0x1000, 0x200,
 160           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER) + 0x1000,
 161           0x200,
 162           ERROR_SUCCESS
 163         },
 164         /* Mandatory are all fields up to SizeOfHeaders, everything else
 165          * is really optional (at least that's true for XP).
 166          */
 167         { &dos_header, sizeof(dos_header),
 168           1, FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum), 0x200, 0x200,
 169           sizeof(dos_header) + sizeof(DWORD) + sizeof(IMAGE_FILE_HEADER) + FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum) + sizeof(IMAGE_SECTION_HEADER) + 0x10,
 170           sizeof(dos_header) + sizeof(DWORD) + sizeof(IMAGE_FILE_HEADER) + FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum) + sizeof(IMAGE_SECTION_HEADER),
 171           ERROR_SUCCESS
 172         },
 173         { &dos_header, sizeof(dos_header),
 174           0, FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum), 0x200, 0x200,
 175           0xd0, /* beyond of the end of file */
 176           0xc0, /* beyond of the end of file */
 177           ERROR_SUCCESS
 178         },
 179         { &dos_header, sizeof(dos_header),
 180           0, FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum), 0x200, 0x200,
 181           0x1000,
 182           0,
 183           ERROR_SUCCESS
 184         },
 185         { &dos_header, sizeof(dos_header),
 186           0, FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum), 0x200, 0x200,
 187           1,
 188           0,
 189           ERROR_SUCCESS
 190         },
 191 #if 0 /* not power of 2 alignments need more test cases */
 192         { &dos_header, sizeof(dos_header),
 193           0, FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum), 0x300, 0x300,
 194           1,
 195           0,
 196           ERROR_BAD_EXE_FORMAT /* alignment is not power of 2 */
 197         },
 198 #endif
 199         { &dos_header, sizeof(dos_header),
 200           0, FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum), 4, 4,
 201           1,
 202           0,
 203           ERROR_SUCCESS
 204         },
 205         { &dos_header, sizeof(dos_header),
 206           0, FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum), 1, 1,
 207           1,
 208           0,
 209           ERROR_SUCCESS
 210         },
 211         { &dos_header, sizeof(dos_header),
 212           0, FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum), 0x200, 0x200,
 213           0,
 214           0,
 215           ERROR_BAD_EXE_FORMAT /* image size == 0 -> failure */
 216         },
 217         /* the following data mimics the PE image which upack creates */
 218         { &dos_header, 0x10,
 219           1, 0x148, 0x1000, 0x200,
 220           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER) + 0x1000,
 221           0x200,
 222           ERROR_SUCCESS
 223         },
 224         /* Minimal PE image that XP is able to load: 92 bytes */
 225         { &dos_header, 0x04,
 226           0, FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum),
 227           0x04 /* also serves as e_lfanew in the truncated MZ header */, 0x04,
 228           1,
 229           0,
 230           ERROR_SUCCESS
 231         }
 232     };
 233     static const char filler[0x1000];
 234     static const char section_data[0x10] = "section data";
 235     int i;
 236     DWORD dummy, file_size, file_align;
 237     HANDLE hfile;
 238     HMODULE hlib, hlib_as_data_file;
 239     SYSTEM_INFO si;
 240     char temp_path[MAX_PATH];
 241     char dll_name[MAX_PATH];
 242
 243     GetSystemInfo(&si);
 244     trace("system page size 0x%04x\n", si.dwPageSize);
 245
 246     /* prevent displaying of the "Unable to load this DLL" message box */
 247     SetErrorMode(SEM_FAILCRITICALERRORS);
 248
 249     GetTempPath(MAX_PATH, temp_path);
 250
 251     for (i = 0; i < sizeof(td)/sizeof(td[0]); i++)
 252     {
 253         GetTempFileName(temp_path, "ldr", 0, dll_name);
 254
 255         /*trace("creating %s\n", dll_name);*/
 256         hfile = CreateFileA(dll_name, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, 0);
 257         if (hfile == INVALID_HANDLE_VALUE)
 258         {
 259             ok(0, "could not create %s\n", dll_name);
 260             break;
 261         }
 262
 263         SetLastError(0xdeadbeef);
 264         ok(WriteFile(hfile, td[i].dos_header, td[i].size_of_dos_header, &dummy, NULL),
 265            "WriteFile error %d\n", GetLastError());
 266
 267         nt_header.FileHeader.NumberOfSections = td[i].number_of_sections;
 268         nt_header.FileHeader.SizeOfOptionalHeader = td[i].size_of_optional_header;
 269
 270         nt_header.OptionalHeader.SectionAlignment = td[i].section_alignment;
 271         nt_header.OptionalHeader.FileAlignment = td[i].file_alignment;
 272         nt_header.OptionalHeader.SizeOfImage = td[i].size_of_image;
 273         nt_header.OptionalHeader.SizeOfHeaders = td[i].size_of_headers;
 274         SetLastError(0xdeadbeef);
 275         ok(WriteFile(hfile, &nt_header, sizeof(DWORD) + sizeof(IMAGE_FILE_HEADER), &dummy, NULL),
 276            "WriteFile error %d\n", GetLastError());
 277
 278         if (nt_header.FileHeader.SizeOfOptionalHeader)
 279         {
 280             SetLastError(0xdeadbeef);
 281             ok(WriteFile(hfile, &nt_header.OptionalHeader,
 282                          min(nt_header.FileHeader.SizeOfOptionalHeader, sizeof(IMAGE_OPTIONAL_HEADER)),
 283                          &dummy, NULL),
 284                "WriteFile error %d\n", GetLastError());
 285             if (nt_header.FileHeader.SizeOfOptionalHeader > sizeof(IMAGE_OPTIONAL_HEADER))
 286             {
 287                 file_align = nt_header.FileHeader.SizeOfOptionalHeader - sizeof(IMAGE_OPTIONAL_HEADER);
 288                 assert(file_align < sizeof(filler));
 289                 SetLastError(0xdeadbeef);
 290                 ok(WriteFile(hfile, filler, file_align, &dummy, NULL),
 291                    "WriteFile error %d\n", GetLastError());
 292             }
 293         }
 294
 295         assert(nt_header.FileHeader.NumberOfSections <= 1);
 296         if (nt_header.FileHeader.NumberOfSections)
 297         {
 298             if (nt_header.OptionalHeader.SectionAlignment >= si.dwPageSize)
 299             {
 300                 section.PointerToRawData = td[i].size_of_dos_header;
 301                 section.VirtualAddress = nt_header.OptionalHeader.SectionAlignment;
 302                 section.Misc.VirtualSize = section.SizeOfRawData * 10;
 303             }
 304             else
 305             {
 306                 section.PointerToRawData = nt_header.OptionalHeader.SizeOfHeaders;
 307                 section.VirtualAddress = nt_header.OptionalHeader.SizeOfHeaders;
 308                 section.Misc.VirtualSize = 5;
 309             }
 310
 311             SetLastError(0xdeadbeef);
 312             ok(WriteFile(hfile, &section, sizeof(section), &dummy, NULL),
 313                "WriteFile error %d\n", GetLastError());
 314
 315             /* section data */
 316             SetLastError(0xdeadbeef);
 317             ok(WriteFile(hfile, section_data, sizeof(section_data), &dummy, NULL),
 318                "WriteFile error %d\n", GetLastError());
 319         }
 320
 321         file_size = GetFileSize(hfile, NULL);
 322         CloseHandle(hfile);
 323
 324         SetLastError(0xdeadbeef);
 325         hlib = LoadLibrary(dll_name);
 326         if (td[i].error == ERROR_SUCCESS)
 327         {
 328             MEMORY_BASIC_INFORMATION info;
 329
 330             ok(hlib != 0, "%d: LoadLibrary error %d\n", i, GetLastError());
 331
 332             /* No point in crashing. Test crashes on Vista with some of the given files */
 333             if (hlib == 0)
 334             {
 335                 skip("Failed to load dll number %d\n", i);
 336                 goto endloop;
 337             }
 338
 339             SetLastError(0xdeadbeef);
 340             ok(VirtualQuery(hlib, &info, sizeof(info)) == sizeof(info),
 341                 "%d: VirtualQuery error %d\n", i, GetLastError());
 342             ok(info.BaseAddress == hlib, "%d: %p != %p\n", i, info.BaseAddress, hlib);
 343             ok(info.AllocationBase == hlib, "%d: %p != %p\n", i, info.AllocationBase, hlib);
 344             ok(info.AllocationProtect == PAGE_EXECUTE_WRITECOPY, "%d: %x != PAGE_EXECUTE_WRITECOPY\n", i, info.AllocationProtect);
 345             ok(info.RegionSize == ALIGN_SIZE(nt_header.OptionalHeader.SizeOfImage, si.dwPageSize), "%d: got %lx != expected %x\n",
 346                i, info.RegionSize, ALIGN_SIZE(nt_header.OptionalHeader.SizeOfImage, si.dwPageSize));
 347             ok(info.State == MEM_COMMIT, "%d: %x != MEM_COMMIT\n", i, info.State);
 348             if (nt_header.OptionalHeader.SectionAlignment < si.dwPageSize)
 349                 ok(info.Protect == PAGE_EXECUTE_WRITECOPY, "%d: %x != PAGE_EXECUTE_WRITECOPY\n", i, info.Protect);
 350             else
 351                 ok(info.Protect == PAGE_READONLY, "%d: %x != PAGE_READONLY\n", i, info.Protect);
 352             ok(info.Type == SEC_IMAGE, "%d: %x != SEC_IMAGE\n", i, info.Type);
 353
 354             SetLastError(0xdeadbeef);
 355             ok(VirtualQuery((char *)hlib + info.RegionSize, &info, sizeof(info)) == sizeof(info),
 356                 "%d: VirtualQuery error %d\n", i, GetLastError());
 357             if (nt_header.OptionalHeader.SectionAlignment == si.dwPageSize ||
 358                 nt_header.OptionalHeader.SectionAlignment == nt_header.OptionalHeader.FileAlignment)
 359             {
 360                 ok(info.BaseAddress == (char *)hlib + ALIGN_SIZE(nt_header.OptionalHeader.SizeOfImage, si.dwPageSize), "%d: got %p != expected %p\n",
 361                    i, info.BaseAddress, (char *)hlib + ALIGN_SIZE(nt_header.OptionalHeader.SizeOfImage, si.dwPageSize));
 362                 ok(info.AllocationBase == 0, "%d: %p != 0\n", i, info.AllocationBase);
 363                 ok(info.AllocationProtect == 0, "%d: %x != 0\n", i, info.AllocationProtect);
 364                 /*ok(info.RegionSize == not_practical_value, "%d: %lx != not_practical_value\n", i, info.RegionSize);*/
 365                 ok(info.State == MEM_FREE, "%d: %x != MEM_FREE\n", i, info.State);
 366                 ok(info.Type == 0, "%d: %x != 0\n", i, info.Type);
 367                 ok(info.Protect == PAGE_NOACCESS, "%d: %x != PAGE_NOACCESS\n", i, info.Protect);
 368             }
 369             else
 370             {
 371                 ok(info.Protect == PAGE_EXECUTE_WRITECOPY, "%d: %x != PAGE_EXECUTE_WRITECOPY\n", i, info.Protect);
 372                 ok(info.BaseAddress == hlib, "%d: got %p != expected %p\n", i, info.BaseAddress, hlib);
 373                 ok(info.AllocationBase == hlib, "%d: %p != %p\n", i, info.AllocationBase, hlib);
 374                 ok(info.AllocationProtect == PAGE_EXECUTE_WRITECOPY, "%d: %x != PAGE_EXECUTE_WRITECOPY\n", i, info.AllocationProtect);
 375                 ok(info.RegionSize == ALIGN_SIZE(file_size, si.dwPageSize), "%d: got %lx != expected %x\n",
 376                    i, info.RegionSize, ALIGN_SIZE(file_size, si.dwPageSize));
 377                 ok(info.State == MEM_COMMIT, "%d: %x != MEM_COMMIT\n", i, info.State);
 378                 ok(info.Protect == PAGE_READONLY, "%d: %x != PAGE_READONLY\n", i, info.Protect);
 379                 ok(info.Type == SEC_IMAGE, "%d: %x != SEC_IMAGE\n", i, info.Type);
 380             }
 381
 382             /* header: check the zeroing of alignment */
 383             if (nt_header.OptionalHeader.SectionAlignment >= si.dwPageSize)
 384             {
 385                 const char *start;
 386                 int size;
 387
 388                 start = (const char *)hlib + nt_header.OptionalHeader.SizeOfHeaders;
 389                 size = ALIGN_SIZE((ULONG_PTR)start, si.dwPageSize) - (ULONG_PTR)start;
 390                 ok(!memcmp(start, filler, size), "%d: header alignment is not cleared\n", i);
 391             }
 392
 393             if (nt_header.FileHeader.NumberOfSections)
 394             {
 395                 SetLastError(0xdeadbeef);
 396                 ok(VirtualQuery((char *)hlib + section.VirtualAddress, &info, sizeof(info)) == sizeof(info),
 397                     "%d: VirtualQuery error %d\n", i, GetLastError());
 398                 if (nt_header.OptionalHeader.SectionAlignment < si.dwPageSize)
 399                 {
 400                     ok(info.BaseAddress == (char *)hlib, "%d: got %p != expected %p\n", i, info.BaseAddress, (char *)hlib);
 401                     ok(info.RegionSize == ALIGN_SIZE(nt_header.OptionalHeader.SizeOfImage, si.dwPageSize), "%d: got %lx != expected %x\n",
 402                        i, info.RegionSize, ALIGN_SIZE(nt_header.OptionalHeader.SizeOfImage, si.dwPageSize));
 403                     ok(info.Protect == PAGE_EXECUTE_WRITECOPY, "%d: %x != PAGE_EXECUTE_WRITECOPY\n", i, info.Protect);
 404                 }
 405                 else
 406                 {
 407                     ok(info.BaseAddress == (char *)hlib + section.VirtualAddress, "%d: got %p != expected %p\n", i, info.BaseAddress, (char *)hlib + section.VirtualAddress);
 408                     ok(info.RegionSize == ALIGN_SIZE(section.Misc.VirtualSize, si.dwPageSize), "%d: got %lx != expected %x\n",
 409                        i, info.RegionSize, ALIGN_SIZE(section.Misc.VirtualSize, si.dwPageSize));
 410                     ok(info.Protect == PAGE_READONLY, "%d: %x != PAGE_READONLY\n", i, info.Protect);
 411                 }
 412                 ok(info.AllocationBase == hlib, "%d: %p != %p\n", i, info.AllocationBase, hlib);
 413                 ok(info.AllocationProtect == PAGE_EXECUTE_WRITECOPY, "%d: %x != PAGE_EXECUTE_WRITECOPY\n", i, info.AllocationProtect);
 414                 ok(info.State == MEM_COMMIT, "%d: %x != MEM_COMMIT\n", i, info.State);
 415                 ok(info.Type == SEC_IMAGE, "%d: %x != SEC_IMAGE\n", i, info.Type);
 416
 417                 if (nt_header.OptionalHeader.SectionAlignment >= si.dwPageSize)
 418                     ok(!memcmp((const char *)hlib + section.VirtualAddress + section.PointerToRawData, &nt_header, section.SizeOfRawData), "wrong section data\n");
 419                 else
 420                     ok(!memcmp((const char *)hlib + section.PointerToRawData, section_data, section.SizeOfRawData), "wrong section data\n");
 421
 422                 /* check the zeroing of alignment */
 423                 if (nt_header.OptionalHeader.SectionAlignment >= si.dwPageSize)
 424                 {
 425                     const char *start;
 426                     int size;
 427
 428                     start = (const char *)hlib + section.VirtualAddress + section.PointerToRawData + section.SizeOfRawData;
 429                     size = ALIGN_SIZE((ULONG_PTR)start, si.dwPageSize) - (ULONG_PTR)start;
 430                     ok(memcmp(start, filler, size), "%d: alignment should not be cleared\n", i);
 431                 }
 432             }
 433
 434             SetLastError(0xdeadbeef);
 435             hlib_as_data_file = LoadLibraryEx(dll_name, 0, LOAD_LIBRARY_AS_DATAFILE);
 436             ok(hlib_as_data_file != 0, "LoadLibraryEx error %u\n", GetLastError());
 437             ok(hlib_as_data_file == hlib, "hlib_as_file and hlib are different\n");
 438
 439             SetLastError(0xdeadbeef);
 440             ok(FreeLibrary(hlib), "FreeLibrary error %d\n", GetLastError());
 441
 442             SetLastError(0xdeadbeef);
 443             hlib = GetModuleHandle(dll_name);
 444             ok(hlib != 0, "GetModuleHandle error %u\n", GetLastError());
 445
 446             SetLastError(0xdeadbeef);
 447             ok(FreeLibrary(hlib_as_data_file), "FreeLibrary error %d\n", GetLastError());
 448
 449             hlib = GetModuleHandle(dll_name);
 450             ok(!hlib, "GetModuleHandle should fail\n");
 451
 452             SetLastError(0xdeadbeef);
 453             hlib_as_data_file = LoadLibraryEx(dll_name, 0, LOAD_LIBRARY_AS_DATAFILE);
 454             ok(hlib_as_data_file != 0, "LoadLibraryEx error %u\n", GetLastError());
 455             ok((ULONG_PTR)hlib_as_data_file & 1, "hlib_as_data_file is even\n");
 456
 457             hlib = GetModuleHandle(dll_name);
 458             ok(!hlib, "GetModuleHandle should fail\n");
 459
 460             SetLastError(0xdeadbeef);
 461             ok(FreeLibrary(hlib_as_data_file), "FreeLibrary error %d\n", GetLastError());
 462         }
 463         else
 464         {   /* LoadLibrary is expected to fail */
 465             ok(!hlib, "%d: LoadLibrary should fail\n", i);
 466
 467             if (GetLastError() == ERROR_GEN_FAILURE) /* Win9x, broken behaviour */
 468             {
 469                 trace("skipping the loader test on Win9x\n");
 470                 DeleteFile(dll_name);
 471                 return;
 472             }
 473
 474             ok(td[i].error == GetLastError(), "%d: expected error %d, got %d\n",
 475                i, td[i].error, GetLastError());
 476         }
 477
 478 endloop:
 479         SetLastError(0xdeadbeef);
 480         ok(DeleteFile(dll_name), "DeleteFile error %d\n", GetLastError());
 481     }
 482 }