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