git.oblomov.eu Git - wine/blob - 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 PVOID RVAToAddr(DWORD_PTR rva, HMODULE module)
  31 {
  32     if (rva == 0)
  33         return NULL;
  34     return ((char*) module) + rva;
  35 }
  36
  37 static const struct
  38 {
  39     WORD e_magic;      /* 00: MZ Header signature */
  40     WORD unused[29];
  41     DWORD e_lfanew;    /* 3c: Offset to extended header */
  42 } dos_header =
  43 {
  44     IMAGE_DOS_SIGNATURE, { 0 }, sizeof(dos_header)
  45 };
  46
  47 static IMAGE_NT_HEADERS nt_header =
  48 {
  49     IMAGE_NT_SIGNATURE, /* Signature */
  50     {
  51 #if defined __i386__
  52       IMAGE_FILE_MACHINE_I386, /* Machine */
  53 #elif defined __x86_64__
  54       IMAGE_FILE_MACHINE_AMD64, /* Machine */
  55 #elif defined __powerpc__
  56       IMAGE_FILE_MACHINE_POWERPC, /* Machine */
  57 #else
  58 # error You must specify the machine type
  59 #endif
  60       1, /* NumberOfSections */
  61       0, /* TimeDateStamp */
  62       0, /* PointerToSymbolTable */
  63       0, /* NumberOfSymbols */
  64       sizeof(IMAGE_OPTIONAL_HEADER), /* SizeOfOptionalHeader */
  65       IMAGE_FILE_EXECUTABLE_IMAGE | IMAGE_FILE_DLL /* Characteristics */
  66     },
  67     { IMAGE_NT_OPTIONAL_HDR_MAGIC, /* Magic */
  68       1, /* MajorLinkerVersion */
  69       0, /* MinorLinkerVersion */
  70       0, /* SizeOfCode */
  71       0, /* SizeOfInitializedData */
  72       0, /* SizeOfUninitializedData */
  73       0, /* AddressOfEntryPoint */
  74       0x10, /* BaseOfCode, also serves as e_lfanew in the truncated MZ header */
  75       0, /* BaseOfData */
  76       0x10000000, /* ImageBase */
  77       0, /* SectionAlignment */
  78       0, /* FileAlignment */
  79       4, /* MajorOperatingSystemVersion */
  80       0, /* MinorOperatingSystemVersion */
  81       1, /* MajorImageVersion */
  82       0, /* MinorImageVersion */
  83       4, /* MajorSubsystemVersion */
  84       0, /* MinorSubsystemVersion */
  85       0, /* Win32VersionValue */
  86       sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER) + 0x1000, /* SizeOfImage */
  87       sizeof(dos_header) + sizeof(nt_header), /* SizeOfHeaders */
  88       0, /* CheckSum */
  89       IMAGE_SUBSYSTEM_WINDOWS_CUI, /* Subsystem */
  90       0, /* DllCharacteristics */
  91       0, /* SizeOfStackReserve */
  92       0, /* SizeOfStackCommit */
  93       0, /* SizeOfHeapReserve */
  94       0, /* SizeOfHeapCommit */
  95       0, /* LoaderFlags */
  96       0, /* NumberOfRvaAndSizes */
  97       { { 0 } } /* DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES] */
  98     }
  99 };
 100
 101 static IMAGE_SECTION_HEADER section =
 102 {
 103     ".rodata", /* Name */
 104     { 0x10 }, /* Misc */
 105     0, /* VirtualAddress */
 106     0x0a, /* SizeOfRawData */
 107     0, /* PointerToRawData */
 108     0, /* PointerToRelocations */
 109     0, /* PointerToLinenumbers */
 110     0, /* NumberOfRelocations */
 111     0, /* NumberOfLinenumbers */
 112     IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_MEM_READ, /* Characteristics */
 113 };
 114
 115 static void test_Loader(void)
 116 {
 117     static const struct test_data
 118     {
 119         const void *dos_header;
 120         DWORD size_of_dos_header;
 121         WORD number_of_sections, size_of_optional_header;
 122         DWORD section_alignment, file_alignment;
 123         DWORD size_of_image, size_of_headers;
 124         DWORD error; /* 0 means LoadLibrary should succeed */
 125         DWORD alt_error; /* alternate error */
 126     } td[] =
 127     {
 128         { &dos_header, sizeof(dos_header),
 129           1, 0, 0, 0, 0, 0,
 130           ERROR_BAD_EXE_FORMAT
 131         },
 132         { &dos_header, sizeof(dos_header),
 133           1, sizeof(IMAGE_OPTIONAL_HEADER), 0x1000, 0x1000,
 134           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER) + 0xe00,
 135           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER),
 136           ERROR_BAD_EXE_FORMAT /* XP doesn't like too small image size */
 137         },
 138         { &dos_header, sizeof(dos_header),
 139           1, sizeof(IMAGE_OPTIONAL_HEADER), 0x1000, 0x1000,
 140           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER) + 0x1000,
 141           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER),
 142           ERROR_SUCCESS
 143         },
 144         { &dos_header, sizeof(dos_header),
 145           1, sizeof(IMAGE_OPTIONAL_HEADER), 0x1000, 0x1000,
 146           0x1f00,
 147           0x1000,
 148           ERROR_SUCCESS
 149         },
 150         { &dos_header, sizeof(dos_header),
 151           1, sizeof(IMAGE_OPTIONAL_HEADER), 0x200, 0x200,
 152           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER) + 0x200,
 153           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER),
 154           ERROR_SUCCESS, ERROR_INVALID_ADDRESS /* vista is more strict */
 155         },
 156         { &dos_header, sizeof(dos_header),
 157           1, sizeof(IMAGE_OPTIONAL_HEADER), 0x200, 0x1000,
 158           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER) + 0x1000,
 159           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER),
 160           ERROR_BAD_EXE_FORMAT /* XP doesn't like alignments */
 161         },
 162         { &dos_header, sizeof(dos_header),
 163           1, sizeof(IMAGE_OPTIONAL_HEADER), 0x1000, 0x200,
 164           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER) + 0x1000,
 165           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER),
 166           ERROR_SUCCESS
 167         },
 168         { &dos_header, sizeof(dos_header),
 169           1, sizeof(IMAGE_OPTIONAL_HEADER), 0x1000, 0x200,
 170           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER) + 0x1000,
 171           0x200,
 172           ERROR_SUCCESS
 173         },
 174         /* Mandatory are all fields up to SizeOfHeaders, everything else
 175          * is really optional (at least that's true for XP).
 176          */
 177         { &dos_header, sizeof(dos_header),
 178           1, FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum), 0x200, 0x200,
 179           sizeof(dos_header) + sizeof(DWORD) + sizeof(IMAGE_FILE_HEADER) + FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum) + sizeof(IMAGE_SECTION_HEADER) + 0x10,
 180           sizeof(dos_header) + sizeof(DWORD) + sizeof(IMAGE_FILE_HEADER) + FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum) + sizeof(IMAGE_SECTION_HEADER),
 181           ERROR_SUCCESS, ERROR_BAD_EXE_FORMAT /* vista is more strict */
 182         },
 183         { &dos_header, sizeof(dos_header),
 184           0, FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum), 0x200, 0x200,
 185           0xd0, /* beyond of the end of file */
 186           0xc0, /* beyond of the end of file */
 187           ERROR_SUCCESS, ERROR_BAD_EXE_FORMAT /* vista is more strict */
 188         },
 189         { &dos_header, sizeof(dos_header),
 190           0, FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum), 0x200, 0x200,
 191           0x1000,
 192           0,
 193           ERROR_SUCCESS, ERROR_BAD_EXE_FORMAT /* vista is more strict */
 194         },
 195         { &dos_header, sizeof(dos_header),
 196           0, FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum), 0x200, 0x200,
 197           1,
 198           0,
 199           ERROR_SUCCESS, ERROR_BAD_EXE_FORMAT /* vista is more strict */
 200         },
 201 #if 0 /* not power of 2 alignments need more test cases */
 202         { &dos_header, sizeof(dos_header),
 203           0, FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum), 0x300, 0x300,
 204           1,
 205           0,
 206           ERROR_BAD_EXE_FORMAT /* alignment is not power of 2 */
 207         },
 208 #endif
 209         { &dos_header, sizeof(dos_header),
 210           0, FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum), 4, 4,
 211           1,
 212           0,
 213           ERROR_SUCCESS, ERROR_BAD_EXE_FORMAT /* vista is more strict */
 214         },
 215         { &dos_header, sizeof(dos_header),
 216           0, FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum), 1, 1,
 217           1,
 218           0,
 219           ERROR_SUCCESS, ERROR_BAD_EXE_FORMAT /* vista is more strict */
 220         },
 221         { &dos_header, sizeof(dos_header),
 222           0, FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum), 0x200, 0x200,
 223           0,
 224           0,
 225           ERROR_BAD_EXE_FORMAT /* image size == 0 -> failure */
 226         },
 227         /* the following data mimics the PE image which upack creates */
 228         { &dos_header, 0x10,
 229           1, 0x148, 0x1000, 0x200,
 230           sizeof(dos_header) + sizeof(nt_header) + sizeof(IMAGE_SECTION_HEADER) + 0x1000,
 231           0x200,
 232           ERROR_SUCCESS
 233         },
 234         /* Minimal PE image that XP is able to load: 92 bytes */
 235         { &dos_header, 0x04,
 236           0, FIELD_OFFSET(IMAGE_OPTIONAL_HEADER, CheckSum),
 237           0x04 /* also serves as e_lfanew in the truncated MZ header */, 0x04,
 238           1,
 239           0,
 240           ERROR_SUCCESS, ERROR_BAD_EXE_FORMAT /* vista is more strict */
 241         }
 242     };
 243     static const char filler[0x1000];
 244     static const char section_data[0x10] = "section data";
 245     int i;
 246     DWORD dummy, file_size, file_align;
 247     HANDLE hfile;
 248     HMODULE hlib, hlib_as_data_file;
 249     SYSTEM_INFO si;
 250     char temp_path[MAX_PATH];
 251     char dll_name[MAX_PATH];
 252
 253     GetSystemInfo(&si);
 254     trace("system page size 0x%04x\n", si.dwPageSize);
 255
 256     /* prevent displaying of the "Unable to load this DLL" message box */
 257     SetErrorMode(SEM_FAILCRITICALERRORS);
 258
 259     GetTempPath(MAX_PATH, temp_path);
 260
 261     for (i = 0; i < sizeof(td)/sizeof(td[0]); i++)
 262     {
 263         GetTempFileName(temp_path, "ldr", 0, dll_name);
 264
 265         /*trace("creating %s\n", dll_name);*/
 266         hfile = CreateFileA(dll_name, GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, 0, 0);
 267         if (hfile == INVALID_HANDLE_VALUE)
 268         {
 269             ok(0, "could not create %s\n", dll_name);
 270             break;
 271         }
 272
 273         SetLastError(0xdeadbeef);
 274         ok(WriteFile(hfile, td[i].dos_header, td[i].size_of_dos_header, &dummy, NULL),
 275            "WriteFile error %d\n", GetLastError());
 276
 277         nt_header.FileHeader.NumberOfSections = td[i].number_of_sections;
 278         nt_header.FileHeader.SizeOfOptionalHeader = td[i].size_of_optional_header;
 279
 280         nt_header.OptionalHeader.SectionAlignment = td[i].section_alignment;
 281         nt_header.OptionalHeader.FileAlignment = td[i].file_alignment;
 282         nt_header.OptionalHeader.SizeOfImage = td[i].size_of_image;
 283         nt_header.OptionalHeader.SizeOfHeaders = td[i].size_of_headers;
 284         SetLastError(0xdeadbeef);
 285         ok(WriteFile(hfile, &nt_header, sizeof(DWORD) + sizeof(IMAGE_FILE_HEADER), &dummy, NULL),
 286            "WriteFile error %d\n", GetLastError());
 287
 288         if (nt_header.FileHeader.SizeOfOptionalHeader)
 289         {
 290             SetLastError(0xdeadbeef);
 291             ok(WriteFile(hfile, &nt_header.OptionalHeader,
 292                          min(nt_header.FileHeader.SizeOfOptionalHeader, sizeof(IMAGE_OPTIONAL_HEADER)),
 293                          &dummy, NULL),
 294                "WriteFile error %d\n", GetLastError());
 295             if (nt_header.FileHeader.SizeOfOptionalHeader > sizeof(IMAGE_OPTIONAL_HEADER))
 296             {
 297                 file_align = nt_header.FileHeader.SizeOfOptionalHeader - sizeof(IMAGE_OPTIONAL_HEADER);
 298                 assert(file_align < sizeof(filler));
 299                 SetLastError(0xdeadbeef);
 300                 ok(WriteFile(hfile, filler, file_align, &dummy, NULL),
 301                    "WriteFile error %d\n", GetLastError());
 302             }
 303         }
 304
 305         assert(nt_header.FileHeader.NumberOfSections <= 1);
 306         if (nt_header.FileHeader.NumberOfSections)
 307         {
 308             if (nt_header.OptionalHeader.SectionAlignment >= si.dwPageSize)
 309             {
 310                 section.PointerToRawData = td[i].size_of_dos_header;
 311                 section.VirtualAddress = nt_header.OptionalHeader.SectionAlignment;
 312                 section.Misc.VirtualSize = section.SizeOfRawData * 10;
 313             }
 314             else
 315             {
 316                 section.PointerToRawData = nt_header.OptionalHeader.SizeOfHeaders;
 317                 section.VirtualAddress = nt_header.OptionalHeader.SizeOfHeaders;
 318                 section.Misc.VirtualSize = 5;
 319             }
 320
 321             SetLastError(0xdeadbeef);
 322             ok(WriteFile(hfile, &section, sizeof(section), &dummy, NULL),
 323                "WriteFile error %d\n", GetLastError());
 324
 325             /* section data */
 326             SetLastError(0xdeadbeef);
 327             ok(WriteFile(hfile, section_data, sizeof(section_data), &dummy, NULL),
 328                "WriteFile error %d\n", GetLastError());
 329         }
 330
 331         file_size = GetFileSize(hfile, NULL);
 332         CloseHandle(hfile);
 333
 334         SetLastError(0xdeadbeef);
 335         hlib = LoadLibrary(dll_name);
 336         if (hlib)
 337         {
 338             MEMORY_BASIC_INFORMATION info;
 339
 340             ok( td[i].error == ERROR_SUCCESS, "%d: should have failed\n", i );
 341
 342             SetLastError(0xdeadbeef);
 343             ok(VirtualQuery(hlib, &info, sizeof(info)) == sizeof(info),
 344                 "%d: VirtualQuery error %d\n", i, GetLastError());
 345             ok(info.BaseAddress == hlib, "%d: %p != %p\n", i, info.BaseAddress, hlib);
 346             ok(info.AllocationBase == hlib, "%d: %p != %p\n", i, info.AllocationBase, hlib);
 347             ok(info.AllocationProtect == PAGE_EXECUTE_WRITECOPY, "%d: %x != PAGE_EXECUTE_WRITECOPY\n", i, info.AllocationProtect);
 348             ok(info.RegionSize == ALIGN_SIZE(nt_header.OptionalHeader.SizeOfImage, si.dwPageSize), "%d: got %lx != expected %x\n",
 349                i, info.RegionSize, ALIGN_SIZE(nt_header.OptionalHeader.SizeOfImage, si.dwPageSize));
 350             ok(info.State == MEM_COMMIT, "%d: %x != MEM_COMMIT\n", i, info.State);
 351             if (nt_header.OptionalHeader.SectionAlignment < si.dwPageSize)
 352                 ok(info.Protect == PAGE_EXECUTE_WRITECOPY, "%d: %x != PAGE_EXECUTE_WRITECOPY\n", i, info.Protect);
 353             else
 354                 ok(info.Protect == PAGE_READONLY, "%d: %x != PAGE_READONLY\n", i, info.Protect);
 355             ok(info.Type == SEC_IMAGE, "%d: %x != SEC_IMAGE\n", i, info.Type);
 356
 357             SetLastError(0xdeadbeef);
 358             ok(VirtualQuery((char *)hlib + info.RegionSize, &info, sizeof(info)) == sizeof(info),
 359                 "%d: VirtualQuery error %d\n", i, GetLastError());
 360             if (nt_header.OptionalHeader.SectionAlignment == si.dwPageSize ||
 361                 nt_header.OptionalHeader.SectionAlignment == nt_header.OptionalHeader.FileAlignment)
 362             {
 363                 ok(info.BaseAddress == (char *)hlib + ALIGN_SIZE(nt_header.OptionalHeader.SizeOfImage, si.dwPageSize), "%d: got %p != expected %p\n",
 364                    i, info.BaseAddress, (char *)hlib + ALIGN_SIZE(nt_header.OptionalHeader.SizeOfImage, si.dwPageSize));
 365                 ok(info.AllocationBase == 0, "%d: %p != 0\n", i, info.AllocationBase);
 366                 ok(info.AllocationProtect == 0, "%d: %x != 0\n", i, info.AllocationProtect);
 367                 /*ok(info.RegionSize == not_practical_value, "%d: %lx != not_practical_value\n", i, info.RegionSize);*/
 368                 ok(info.State == MEM_FREE, "%d: %x != MEM_FREE\n", i, info.State);
 369                 ok(info.Type == 0, "%d: %x != 0\n", i, info.Type);
 370                 ok(info.Protect == PAGE_NOACCESS, "%d: %x != PAGE_NOACCESS\n", i, info.Protect);
 371             }
 372             else
 373             {
 374                 ok(info.Protect == PAGE_EXECUTE_WRITECOPY, "%d: %x != PAGE_EXECUTE_WRITECOPY\n", i, info.Protect);
 375                 ok(info.BaseAddress == hlib, "%d: got %p != expected %p\n", i, info.BaseAddress, hlib);
 376                 ok(info.AllocationBase == hlib, "%d: %p != %p\n", i, info.AllocationBase, hlib);
 377                 ok(info.AllocationProtect == PAGE_EXECUTE_WRITECOPY, "%d: %x != PAGE_EXECUTE_WRITECOPY\n", i, info.AllocationProtect);
 378                 ok(info.RegionSize == ALIGN_SIZE(file_size, si.dwPageSize), "%d: got %lx != expected %x\n",
 379                    i, info.RegionSize, ALIGN_SIZE(file_size, si.dwPageSize));
 380                 ok(info.State == MEM_COMMIT, "%d: %x != MEM_COMMIT\n", i, info.State);
 381                 ok(info.Protect == PAGE_READONLY, "%d: %x != PAGE_READONLY\n", i, info.Protect);
 382                 ok(info.Type == SEC_IMAGE, "%d: %x != SEC_IMAGE\n", i, info.Type);
 383             }
 384
 385             /* header: check the zeroing of alignment */
 386             if (nt_header.OptionalHeader.SectionAlignment >= si.dwPageSize)
 387             {
 388                 const char *start;
 389                 int size;
 390
 391                 start = (const char *)hlib + nt_header.OptionalHeader.SizeOfHeaders;
 392                 size = ALIGN_SIZE((ULONG_PTR)start, si.dwPageSize) - (ULONG_PTR)start;
 393                 ok(!memcmp(start, filler, size), "%d: header alignment is not cleared\n", i);
 394             }
 395
 396             if (nt_header.FileHeader.NumberOfSections)
 397             {
 398                 SetLastError(0xdeadbeef);
 399                 ok(VirtualQuery((char *)hlib + section.VirtualAddress, &info, sizeof(info)) == sizeof(info),
 400                     "%d: VirtualQuery error %d\n", i, GetLastError());
 401                 if (nt_header.OptionalHeader.SectionAlignment < si.dwPageSize)
 402                 {
 403                     ok(info.BaseAddress == (char *)hlib, "%d: got %p != expected %p\n", i, info.BaseAddress, (char *)hlib);
 404                     ok(info.RegionSize == ALIGN_SIZE(nt_header.OptionalHeader.SizeOfImage, si.dwPageSize), "%d: got %lx != expected %x\n",
 405                        i, info.RegionSize, ALIGN_SIZE(nt_header.OptionalHeader.SizeOfImage, si.dwPageSize));
 406                     ok(info.Protect == PAGE_EXECUTE_WRITECOPY, "%d: %x != PAGE_EXECUTE_WRITECOPY\n", i, info.Protect);
 407                 }
 408                 else
 409                 {
 410                     ok(info.BaseAddress == (char *)hlib + section.VirtualAddress, "%d: got %p != expected %p\n", i, info.BaseAddress, (char *)hlib + section.VirtualAddress);
 411                     ok(info.RegionSize == ALIGN_SIZE(section.Misc.VirtualSize, si.dwPageSize), "%d: got %lx != expected %x\n",
 412                        i, info.RegionSize, ALIGN_SIZE(section.Misc.VirtualSize, si.dwPageSize));
 413                     ok(info.Protect == PAGE_READONLY, "%d: %x != PAGE_READONLY\n", i, info.Protect);
 414                 }
 415                 ok(info.AllocationBase == hlib, "%d: %p != %p\n", i, info.AllocationBase, hlib);
 416                 ok(info.AllocationProtect == PAGE_EXECUTE_WRITECOPY, "%d: %x != PAGE_EXECUTE_WRITECOPY\n", i, info.AllocationProtect);
 417                 ok(info.State == MEM_COMMIT, "%d: %x != MEM_COMMIT\n", i, info.State);
 418                 ok(info.Type == SEC_IMAGE, "%d: %x != SEC_IMAGE\n", i, info.Type);
 419
 420                 if (nt_header.OptionalHeader.SectionAlignment >= si.dwPageSize)
 421                     ok(!memcmp((const char *)hlib + section.VirtualAddress + section.PointerToRawData, &nt_header, section.SizeOfRawData), "wrong section data\n");
 422                 else
 423                     ok(!memcmp((const char *)hlib + section.PointerToRawData, section_data, section.SizeOfRawData), "wrong section data\n");
 424
 425                 /* check the zeroing of alignment */
 426                 if (nt_header.OptionalHeader.SectionAlignment >= si.dwPageSize)
 427                 {
 428                     const char *start;
 429                     int size;
 430
 431                     start = (const char *)hlib + section.VirtualAddress + section.PointerToRawData + section.SizeOfRawData;
 432                     size = ALIGN_SIZE((ULONG_PTR)start, si.dwPageSize) - (ULONG_PTR)start;
 433                     ok(memcmp(start, filler, size), "%d: alignment should not be cleared\n", i);
 434                 }
 435             }
 436
 437             SetLastError(0xdeadbeef);
 438             hlib_as_data_file = LoadLibraryEx(dll_name, 0, LOAD_LIBRARY_AS_DATAFILE);
 439             ok(hlib_as_data_file != 0, "LoadLibraryEx error %u\n", GetLastError());
 440             ok(hlib_as_data_file == hlib, "hlib_as_file and hlib are different\n");
 441
 442             SetLastError(0xdeadbeef);
 443             ok(FreeLibrary(hlib), "FreeLibrary error %d\n", GetLastError());
 444
 445             SetLastError(0xdeadbeef);
 446             hlib = GetModuleHandle(dll_name);
 447             ok(hlib != 0, "GetModuleHandle error %u\n", GetLastError());
 448
 449             SetLastError(0xdeadbeef);
 450             ok(FreeLibrary(hlib_as_data_file), "FreeLibrary error %d\n", GetLastError());
 451
 452             hlib = GetModuleHandle(dll_name);
 453             ok(!hlib, "GetModuleHandle should fail\n");
 454
 455             SetLastError(0xdeadbeef);
 456             hlib_as_data_file = LoadLibraryEx(dll_name, 0, LOAD_LIBRARY_AS_DATAFILE);
 457             ok(hlib_as_data_file != 0, "LoadLibraryEx error %u\n", GetLastError());
 458             ok((ULONG_PTR)hlib_as_data_file & 1, "hlib_as_data_file is even\n");
 459
 460             hlib = GetModuleHandle(dll_name);
 461             ok(!hlib, "GetModuleHandle should fail\n");
 462
 463             SetLastError(0xdeadbeef);
 464             ok(FreeLibrary(hlib_as_data_file), "FreeLibrary error %d\n", GetLastError());
 465         }
 466         else
 467         {
 468             ok(td[i].error || td[i].alt_error, "%d: LoadLibrary should succeed\n", i);
 469
 470             if (GetLastError() == ERROR_GEN_FAILURE) /* Win9x, broken behaviour */
 471             {
 472                 trace("skipping the loader test on Win9x\n");
 473                 DeleteFile(dll_name);
 474                 return;
 475             }
 476
 477             ok(td[i].error == GetLastError() || td[i].alt_error == GetLastError(),
 478                "%d: expected error %d or %d, got %d\n",
 479                i, td[i].error, td[i].alt_error, GetLastError());
 480         }
 481
 482         SetLastError(0xdeadbeef);
 483         ok(DeleteFile(dll_name), "DeleteFile error %d\n", GetLastError());
 484     }
 485 }
 486
 487 /* Verify linking style of import descriptors */
 488 static void test_ImportDescriptors(void)
 489 {
 490     HMODULE kernel32_module = NULL;
 491     PIMAGE_DOS_HEADER d_header;
 492     PIMAGE_NT_HEADERS nt_headers;
 493     DWORD import_dir_size;
 494     DWORD_PTR dir_offset;
 495     PIMAGE_IMPORT_DESCRIPTOR import_chunk;
 496
 497     /* Load kernel32 module */
 498     kernel32_module = GetModuleHandleA("kernel32.dll");
 499     assert( kernel32_module != NULL );
 500
 501     /* Get PE header info from module image */
 502     d_header = (PIMAGE_DOS_HEADER) kernel32_module;
 503     nt_headers = (PIMAGE_NT_HEADERS) (((char*) d_header) +
 504             d_header->e_lfanew);
 505
 506     /* Get size of import entry directory */
 507     import_dir_size = nt_headers->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].Size;
 508     if (!import_dir_size)
 509     {
 510         skip("Unable to continue testing due to missing import directory.\n");
 511         return;
 512     }
 513
 514     /* Get address of first import chunk */
 515     dir_offset = nt_headers->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress;
 516     import_chunk = RVAToAddr(dir_offset, kernel32_module);
 517     ok(import_chunk != 0, "Invalid import_chunk: %p\n", import_chunk);
 518     if (!import_chunk) return;
 519
 520     /* Iterate through import descriptors and verify set name,
 521      * OriginalFirstThunk, and FirstThunk.  Core Windows DLLs, such as
 522      * kernel32.dll, don't use Borland-style linking, where the table of
 523      * imported names is stored directly in FirstThunk and overwritten
 524      * by the relocation, instead of being stored in OriginalFirstThunk.
 525      * */
 526     for (; import_chunk->FirstThunk; import_chunk++)
 527     {
 528         LPCSTR module_name = RVAToAddr(import_chunk->Name, kernel32_module);
 529         PIMAGE_THUNK_DATA name_table = RVAToAddr(
 530                 U(*import_chunk).OriginalFirstThunk, kernel32_module);
 531         PIMAGE_THUNK_DATA iat = RVAToAddr(
 532                 import_chunk->FirstThunk, kernel32_module);
 533         ok(module_name != NULL, "Imported module name should not be NULL\n");
 534         ok(name_table != NULL,
 535                 "Name table for imported module %s should not be NULL\n",
 536                 module_name);
 537         ok(iat != NULL, "IAT for imported module %s should not be NULL\n",
 538                 module_name);
 539     }
 540 }
 541
 542 START_TEST(loader)
 543 {
 544     test_Loader();
 545     test_ImportDescriptors();
 546 }