2 * coree.c: mscoree.dll functions
5 * Kornel Pal <http://www.kornelpal.hu/>
7 * Copyright (C) 2008 Kornel Pal
8 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
17 #include <mono/io-layer/io-layer.h>
18 #include <mono/utils/mono-path.h>
20 #include "metadata-internals.h"
23 #include "domain-internals.h"
24 #include "appdomain.h"
28 #include "environment.h"
33 HMODULE coree_module_handle = NULL;
35 static gboolean init_from_coree = FALSE;
38 mono_get_module_file_name (HMODULE module_handle)
41 gchar* file_name_utf8;
46 file_name = g_new (gunichar2, buffer_size);
49 size = GetModuleFileName (module_handle, file_name, buffer_size);
55 g_assert (size <= buffer_size);
56 if (size != buffer_size)
60 file_name = g_realloc (file_name, buffer_size * sizeof (gunichar2));
63 file_name_utf8 = g_utf16_to_utf8 (file_name, size, NULL, NULL, NULL);
66 return file_name_utf8;
69 /* Entry point called by LdrLoadDll of ntdll.dll after _CorValidateImage. */
70 BOOL STDMETHODCALLTYPE _CorDllMain(HINSTANCE hInst, DWORD dwReason, LPVOID lpReserved)
72 MonoAssembly* assembly;
79 case DLL_PROCESS_ATTACH:
80 DisableThreadLibraryCalls (hInst);
82 file_name = mono_get_module_file_name (hInst);
84 if (mono_get_root_domain ()) {
85 image = mono_image_open_from_module_handle (hInst, mono_path_resolve_symlinks (file_name), TRUE, NULL);
87 init_from_coree = TRUE;
88 mono_runtime_load (file_name, NULL);
89 error = (gchar*) mono_check_corlib_version ();
97 image = mono_image_open (file_name, NULL);
99 image->has_entry_point = TRUE;
100 mono_close_exe_image ();
101 /* Decrement reference count to zero. (Image will not be closed.) */
102 mono_image_close (image);
112 * FIXME: Find a better way to call mono_image_fixup_vtable. Only
113 * loader trampolines should be used and assembly loading should
114 * probably be delayed until the first call to an exported function.
116 if (image->tables [MONO_TABLE_ASSEMBLY].rows && ((MonoCLIImageInfo*) image->image_info)->cli_cli_header.ch_vtable_fixups.rva)
117 assembly = mono_assembly_open (file_name, NULL);
121 case DLL_PROCESS_DETACH:
122 if (lpReserved != NULL)
123 /* The process is terminating. */
125 file_name = mono_get_module_file_name (hInst);
126 image = mono_image_loaded (file_name);
128 mono_image_close (image);
137 /* Called by ntdll.dll reagardless of entry point after _CorValidateImage. */
138 __int32 STDMETHODCALLTYPE _CorExeMain(void)
142 MonoAssembly* assembly;
147 gchar* corlib_version_error;
153 file_name = mono_get_module_file_name (NULL);
154 init_from_coree = TRUE;
155 domain = mono_runtime_load (file_name, NULL);
157 corlib_version_error = (gchar*) mono_check_corlib_version ();
158 if (corlib_version_error) {
159 g_free (corlib_version_error);
161 MessageBox (NULL, L"Corlib not in sync with this runtime.", NULL, MB_ICONERROR);
162 mono_runtime_quit ();
166 assembly = mono_assembly_open (file_name, NULL);
167 mono_close_exe_image ();
170 MessageBox (NULL, L"Cannot open assembly.", NULL, MB_ICONERROR);
171 mono_runtime_quit ();
175 image = assembly->image;
176 entry = mono_image_get_entry_point (image);
179 MessageBox (NULL, L"Assembly doesn't have an entry point.", NULL, MB_ICONERROR);
180 mono_runtime_quit ();
184 method = mono_get_method_checked (image, entry, NULL, NULL, &error);
185 if (method == NULL) {
187 mono_error_cleanup (&error); /* FIXME don't swallow the error */
188 MessageBox (NULL, L"The entry point method could not be loaded.", NULL, MB_ICONERROR);
189 mono_runtime_quit ();
193 argvw = CommandLineToArgvW (GetCommandLine (), &argc);
194 argv = g_new0 (gchar*, argc);
195 argv [0] = file_name;
196 for (i = 1; i < argc; ++i)
197 argv [i] = g_utf16_to_utf8 (argvw [i], -1, NULL, NULL, NULL);
200 mono_runtime_run_main_checked (method, argc, argv, &error);
201 mono_error_raise_exception (&error); /* FIXME don't raise here */
202 mono_thread_manage ();
204 mono_runtime_quit ();
206 /* return does not terminate the process. */
207 ExitProcess (mono_environment_exitcode_get ());
210 /* Called by msvcrt.dll when shutting down. */
211 void STDMETHODCALLTYPE CorExitProcess(int exitCode)
213 /* FIXME: This is not currently supported by the runtime. */
215 if (mono_get_root_domain () && !mono_runtime_is_shutting_down ()) {
216 mono_runtime_set_shutting_down ();
217 mono_thread_suspend_all_other_threads ();
218 mono_runtime_quit ();
221 ExitProcess (exitCode);
224 /* Called by ntdll.dll before _CorDllMain and _CorExeMain. */
225 STDAPI _CorValidateImage(PVOID *ImageBase, LPCWSTR FileName)
227 IMAGE_DOS_HEADER* DosHeader;
228 IMAGE_NT_HEADERS32* NtHeaders32;
229 IMAGE_DATA_DIRECTORY* CliHeaderDir;
231 IMAGE_NT_HEADERS64* NtHeaders64;
232 MonoCLIHeader* CliHeader;
238 DosHeader = (IMAGE_DOS_HEADER*)*ImageBase;
239 if (DosHeader->e_magic != IMAGE_DOS_SIGNATURE)
240 return STATUS_INVALID_IMAGE_FORMAT;
242 NtHeaders32 = (IMAGE_NT_HEADERS32*)((DWORD_PTR)DosHeader + DosHeader->e_lfanew);
243 if (NtHeaders32->Signature != IMAGE_NT_SIGNATURE)
244 return STATUS_INVALID_IMAGE_FORMAT;
247 NtHeaders64 = (IMAGE_NT_HEADERS64*)NtHeaders32;
248 if (NtHeaders64->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC)
250 if (NtHeaders64->OptionalHeader.NumberOfRvaAndSizes <= IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR)
251 return STATUS_INVALID_IMAGE_FORMAT;
253 CliHeaderDir = &NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR];
254 if (!CliHeaderDir->VirtualAddress)
255 return STATUS_INVALID_IMAGE_FORMAT;
257 CliHeader = (MonoCLIHeader*)((DWORD_PTR)DosHeader + CliHeaderDir->VirtualAddress);
258 if (CliHeader->ch_flags & CLI_FLAGS_32BITREQUIRED)
259 return STATUS_INVALID_IMAGE_FORMAT;
261 if (CliHeader->ch_flags & CLI_FLAGS_ILONLY)
263 /* Avoid calling _CorDllMain because imports are not resolved for IL only images. */
264 if (NtHeaders64->OptionalHeader.AddressOfEntryPoint != 0)
266 Address = &NtHeaders64->OptionalHeader.AddressOfEntryPoint;
267 if (!VirtualProtect(Address, sizeof(DWORD), PAGE_READWRITE, &OldProtect))
270 if (!VirtualProtect(Address, sizeof(DWORD), OldProtect, &OldProtect))
275 return STATUS_SUCCESS;
278 if (NtHeaders32->OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR32_MAGIC)
279 return STATUS_INVALID_IMAGE_FORMAT;
281 if (NtHeaders32->OptionalHeader.NumberOfRvaAndSizes <= IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR)
282 return STATUS_INVALID_IMAGE_FORMAT;
284 CliHeaderDir = &NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR];
285 if (!CliHeaderDir->VirtualAddress)
286 return STATUS_INVALID_IMAGE_FORMAT;
288 CliHeader = (MonoCLIHeader*)((DWORD_PTR)DosHeader + CliHeaderDir->VirtualAddress);
289 if (!(CliHeader->ch_flags & CLI_FLAGS_ILONLY) || (CliHeader->ch_flags & CLI_FLAGS_32BITREQUIRED))
290 return STATUS_INVALID_IMAGE_FORMAT;
292 /* Fixup IMAGE_NT_HEADERS32 to IMAGE_NT_HEADERS64. */
293 SizeOfHeaders = NtHeaders32->OptionalHeader.SizeOfHeaders;
294 if (SizeOfHeaders < DosHeader->e_lfanew + sizeof(IMAGE_NT_HEADERS64) + (sizeof(IMAGE_SECTION_HEADER) * NtHeaders32->FileHeader.NumberOfSections))
295 return STATUS_INVALID_IMAGE_FORMAT;
297 if (!VirtualProtect(DosHeader, SizeOfHeaders, PAGE_READWRITE, &OldProtect))
300 memmove(NtHeaders64 + 1, IMAGE_FIRST_SECTION(NtHeaders32), sizeof(IMAGE_SECTION_HEADER) * NtHeaders32->FileHeader.NumberOfSections);
302 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES - 1].Size = 0;
303 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES - 1].VirtualAddress = 0;
304 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].Size = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].Size;
305 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].VirtualAddress = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].VirtualAddress;
306 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT].Size = 0;
307 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT].VirtualAddress = 0;
308 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IAT].Size = 0;
309 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IAT].VirtualAddress = 0;
310 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT].Size = 0;
311 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT].VirtualAddress = 0;
312 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG].Size = 0;
313 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG].VirtualAddress = 0;
314 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_TLS].Size = 0;
315 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_TLS].VirtualAddress = 0;
316 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_GLOBALPTR].Size = 0;
317 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_GLOBALPTR].VirtualAddress = 0;
318 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_ARCHITECTURE].Size = 0;
319 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_ARCHITECTURE].VirtualAddress = 0;
320 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DEBUG].Size = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DEBUG].Size;
321 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DEBUG].VirtualAddress = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DEBUG].VirtualAddress;
322 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].Size = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].Size;
323 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].VirtualAddress = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].VirtualAddress;
324 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_SECURITY].Size = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_SECURITY].Size;
325 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_SECURITY].VirtualAddress = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_SECURITY].VirtualAddress;
326 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXCEPTION].Size = 0;
327 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXCEPTION].VirtualAddress = 0;
328 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].Size = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].Size;
329 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress;
330 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].Size = 0;
331 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress = 0;
332 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size = 0;
333 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress = 0;
335 NtHeaders64->OptionalHeader.NumberOfRvaAndSizes = IMAGE_NUMBEROF_DIRECTORY_ENTRIES;
336 NtHeaders64->OptionalHeader.LoaderFlags = NtHeaders32->OptionalHeader.LoaderFlags;
337 NtHeaders64->OptionalHeader.SizeOfHeapCommit = (ULONGLONG)NtHeaders32->OptionalHeader.SizeOfHeapCommit;
338 NtHeaders64->OptionalHeader.SizeOfHeapReserve = (ULONGLONG)NtHeaders32->OptionalHeader.SizeOfHeapReserve;
339 NtHeaders64->OptionalHeader.SizeOfStackCommit = (ULONGLONG)NtHeaders32->OptionalHeader.SizeOfStackCommit;
340 NtHeaders64->OptionalHeader.SizeOfStackReserve = (ULONGLONG)NtHeaders32->OptionalHeader.SizeOfStackReserve;
341 NtHeaders64->OptionalHeader.DllCharacteristics = NtHeaders32->OptionalHeader.DllCharacteristics;
342 NtHeaders64->OptionalHeader.Subsystem = NtHeaders32->OptionalHeader.Subsystem;
343 NtHeaders64->OptionalHeader.CheckSum = NtHeaders32->OptionalHeader.CheckSum;
344 NtHeaders64->OptionalHeader.SizeOfHeaders = NtHeaders32->OptionalHeader.SizeOfHeaders;
345 NtHeaders64->OptionalHeader.SizeOfImage = NtHeaders32->OptionalHeader.SizeOfImage;
346 NtHeaders64->OptionalHeader.Win32VersionValue = NtHeaders32->OptionalHeader.Win32VersionValue;
347 NtHeaders64->OptionalHeader.MinorSubsystemVersion = NtHeaders32->OptionalHeader.MinorSubsystemVersion;
348 NtHeaders64->OptionalHeader.MajorSubsystemVersion = NtHeaders32->OptionalHeader.MajorSubsystemVersion;
349 NtHeaders64->OptionalHeader.MinorImageVersion = NtHeaders32->OptionalHeader.MinorImageVersion;
350 NtHeaders64->OptionalHeader.MajorImageVersion = NtHeaders32->OptionalHeader.MajorImageVersion;
351 NtHeaders64->OptionalHeader.MinorOperatingSystemVersion = NtHeaders32->OptionalHeader.MinorOperatingSystemVersion;
352 NtHeaders64->OptionalHeader.MajorOperatingSystemVersion = NtHeaders32->OptionalHeader.MajorOperatingSystemVersion;
353 NtHeaders64->OptionalHeader.FileAlignment = NtHeaders32->OptionalHeader.FileAlignment;
354 NtHeaders64->OptionalHeader.SectionAlignment = NtHeaders32->OptionalHeader.SectionAlignment;
355 NtHeaders64->OptionalHeader.ImageBase = (ULONGLONG)NtHeaders32->OptionalHeader.ImageBase;
356 /* BaseOfCode is at the same offset. */
357 NtHeaders64->OptionalHeader.AddressOfEntryPoint = 0;
358 NtHeaders64->OptionalHeader.Magic = IMAGE_NT_OPTIONAL_HDR64_MAGIC;
359 NtHeaders64->FileHeader.SizeOfOptionalHeader = sizeof(IMAGE_OPTIONAL_HEADER64);
361 if (!VirtualProtect(DosHeader, SizeOfHeaders, OldProtect, &OldProtect))
364 if (NtHeaders32->OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR32_MAGIC)
365 return STATUS_INVALID_IMAGE_FORMAT;
367 if (NtHeaders32->OptionalHeader.NumberOfRvaAndSizes <= IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR)
368 return STATUS_INVALID_IMAGE_FORMAT;
370 CliHeaderDir = &NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR];
371 if (!CliHeaderDir->VirtualAddress)
372 return STATUS_INVALID_IMAGE_FORMAT;
374 Address = &NtHeaders32->OptionalHeader.AddressOfEntryPoint;
375 if (!VirtualProtect(Address, sizeof(DWORD), PAGE_READWRITE, &OldProtect))
377 if (NtHeaders32->FileHeader.Characteristics & IMAGE_FILE_DLL)
378 *Address = (DWORD)((DWORD_PTR)&_CorDllMain - (DWORD_PTR)DosHeader);
380 *Address = (DWORD)((DWORD_PTR)&_CorExeMain - (DWORD_PTR)DosHeader);
381 if (!VirtualProtect(Address, sizeof(DWORD), OldProtect, &OldProtect))
385 return STATUS_SUCCESS;
388 /* Called by ntdll.dll. */
389 STDAPI_(VOID) _CorImageUnloading(PVOID ImageBase)
394 STDAPI CorBindToRuntimeEx(LPCWSTR pwszVersion, LPCWSTR pwszBuildFlavor, DWORD startupFlags, REFCLSID rclsid, REFIID riid, LPVOID FAR *ppv)
403 STDAPI CorBindToRuntime(LPCWSTR pwszVersion, LPCWSTR pwszBuildFlavor, REFCLSID rclsid, REFIID riid, LPVOID FAR *ppv)
405 return CorBindToRuntimeEx (pwszVersion, pwszBuildFlavor, 0, rclsid, riid, ppv);
408 HMODULE WINAPI MonoLoadImage(LPCWSTR FileName)
413 IMAGE_DOS_HEADER* DosHeader;
414 IMAGE_NT_HEADERS32* NtHeaders32;
416 IMAGE_NT_HEADERS64* NtHeaders64;
418 HMODULE ModuleHandle;
420 FileHandle = CreateFile(FileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
421 if (FileHandle == INVALID_HANDLE_VALUE)
424 FileSize = GetFileSize(FileHandle, NULL);
425 if (FileSize == INVALID_FILE_SIZE)
428 MapHandle = CreateFileMapping(FileHandle, NULL, PAGE_READONLY, 0, 0, NULL);
429 if (MapHandle == NULL)
432 DosHeader = (IMAGE_DOS_HEADER*)MapViewOfFile(MapHandle, FILE_MAP_READ, 0, 0, 0);
433 if (DosHeader == NULL)
436 if (FileSize < sizeof(IMAGE_DOS_HEADER) || DosHeader->e_magic != IMAGE_DOS_SIGNATURE || FileSize < DosHeader->e_lfanew + sizeof(IMAGE_NT_HEADERS32))
437 goto InvalidImageFormat;
439 NtHeaders32 = (IMAGE_NT_HEADERS32*)((DWORD_PTR)DosHeader + DosHeader->e_lfanew);
440 if (NtHeaders32->Signature != IMAGE_NT_SIGNATURE)
441 goto InvalidImageFormat;
444 NtHeaders64 = (IMAGE_NT_HEADERS64*)NtHeaders32;
445 if (NtHeaders64->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC)
447 if (FileSize < DosHeader->e_lfanew + sizeof(IMAGE_NT_HEADERS64) ||
448 NtHeaders64->OptionalHeader.NumberOfRvaAndSizes <= IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR ||
449 !NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].VirtualAddress)
450 goto InvalidImageFormat;
456 if (NtHeaders32->OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR32_MAGIC ||
457 NtHeaders32->OptionalHeader.NumberOfRvaAndSizes <= IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR ||
458 !NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].VirtualAddress)
461 SetLastError(STATUS_INVALID_IMAGE_FORMAT);
468 UnmapViewOfFile(DosHeader);
469 CloseHandle(MapHandle);
471 ModuleHandle = LoadLibrary(FileName);
473 CloseHandle(FileHandle);
477 UnmapViewOfFile(DosHeader);
479 CloseHandle(MapHandle);
481 CloseHandle(FileHandle);
485 typedef struct _EXPORT_FIXUP
492 BYTE Bytes[sizeof(PVOID)];
494 PLABEL_DESCRIPTOR* PLabel;
499 /* Has to be binary ordered. */
500 static const EXPORT_FIXUP ExportFixups[] = {
501 {"CorBindToRuntime", &CorBindToRuntime},
502 {"CorBindToRuntimeEx", &CorBindToRuntimeEx},
503 {"CorExitProcess", &CorExitProcess},
504 {"_CorDllMain", &_CorDllMain},
505 {"_CorExeMain", &_CorExeMain},
506 {"_CorImageUnloading", &_CorImageUnloading},
507 {"_CorValidateImage", &_CorValidateImage},
511 #define EXPORT_FIXUP_COUNT (sizeof(ExportFixups) / sizeof(EXPORT_FIXUP) - 1)
513 static HMODULE ExportFixupModuleHandle = NULL;
514 static DWORD ExportFixupRvas[EXPORT_FIXUP_COUNT];
516 /* Fixup exported functions of mscoree.dll to our implementations. */
517 STDAPI MonoFixupCorEE(HMODULE ModuleHandle)
519 IMAGE_DOS_HEADER* DosHeader;
520 IMAGE_NT_HEADERS* NtHeaders;
521 IMAGE_DATA_DIRECTORY* ExportDataDir;
522 IMAGE_EXPORT_DIRECTORY* ExportDir;
526 EXPORT_FIXUP* ExportFixup;
527 DWORD* ExportFixupRva;
534 MEMORY_BASIC_INFORMATION MemoryInfo;
539 PLABEL_DESCRIPTOR* PLabel;
541 #define ELEMENT_SIZE sizeof(PLABEL_DESCRIPTOR)
542 #define REGION_WRITE_PROTECT PAGE_READWRITE
543 #define REGION_PROTECT PAGE_READ
547 #define ELEMENT_SIZE 13
548 #define REGION_WRITE_PROTECT PAGE_EXECUTE_READWRITE
549 #define REGION_PROTECT PAGE_EXECUTE_READ
553 if (ExportFixupModuleHandle != NULL)
554 return ModuleHandle == ExportFixupModuleHandle ? S_OK : E_FAIL;
556 DosHeader = (IMAGE_DOS_HEADER*)ModuleHandle;
557 if (DosHeader == NULL)
560 if (DosHeader->e_magic != IMAGE_DOS_SIGNATURE)
563 NtHeaders = (IMAGE_NT_HEADERS*)((DWORD_PTR)DosHeader + DosHeader->e_lfanew);
564 if (NtHeaders->Signature != IMAGE_NT_SIGNATURE)
567 if (NtHeaders->OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR_MAGIC)
570 if (NtHeaders->OptionalHeader.NumberOfRvaAndSizes <= IMAGE_DIRECTORY_ENTRY_EXPORT)
573 ExportDataDir = &NtHeaders->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT];
574 if (!ExportDataDir->VirtualAddress)
578 /* Allocate memory after base address because RVAs are 32-bit unsigned integers. */
579 RegionBase = DosHeader;
580 MaxRegionBase = (PVOID)((DWORD_PTR)RegionBase + (DWORD_PTR)(0x100000000L - (ELEMENT_SIZE * (EXPORT_FIXUP_COUNT - 1))));
583 if (!VirtualQuery(RegionBase, &MemoryInfo, sizeof(MEMORY_BASIC_INFORMATION)))
585 if (MemoryInfo.State == MEM_FREE && MemoryInfo.RegionSize >= ELEMENT_SIZE * EXPORT_FIXUP_COUNT)
587 Region = VirtualAlloc(RegionBase, ELEMENT_SIZE * EXPORT_FIXUP_COUNT, MEM_COMMIT | MEM_RESERVE, REGION_WRITE_PROTECT);
591 RegionBase = (PVOID)((DWORD_PTR)MemoryInfo.BaseAddress + (DWORD_PTR)MemoryInfo.RegionSize);
592 if (RegionBase > MaxRegionBase)
593 return E_OUTOFMEMORY;
597 PLabel = (PLABEL_DESCRIPTOR*)Region;
599 Trampoline = (BYTE*)Region;
603 ExportDir = (IMAGE_EXPORT_DIRECTORY*)((DWORD_PTR)DosHeader + ExportDataDir->VirtualAddress);
604 Functions = (DWORD*)((DWORD_PTR)DosHeader + ExportDir->AddressOfFunctions);
605 Names = (DWORD*)((DWORD_PTR)DosHeader + ExportDir->AddressOfNames);
606 NameOrdinals = (WORD*)((DWORD_PTR)DosHeader + ExportDir->AddressOfNameOrdinals);
607 ExportFixup = (EXPORT_FIXUP*)&ExportFixups;
608 ExportFixupRva = (DWORD*)&ExportFixupRvas;
610 for (i = 0; i < ExportDir->NumberOfNames; i++)
612 cmp = strcmp((LPCSTR)((DWORD_PTR)DosHeader + Names[i]), ExportFixup->Name);
620 ProcRva = (DWORD)((DWORD_PTR)PLabel - (DWORD_PTR)DosHeader);
621 *(PLabel)++ = *ExportFixup->ProcAddress.PLabel;
622 #elif defined(_M_AMD64)
623 ProcRva = (DWORD)((DWORD_PTR)Trampoline - (DWORD_PTR)DosHeader);
624 /* mov r11, ExportFixup->ProcAddress */
625 *(Trampoline)++ = 0x49;
626 *(Trampoline)++ = 0xBB;
627 *(Trampoline)++ = ExportFixup->ProcAddress.Bytes[0];
628 *(Trampoline)++ = ExportFixup->ProcAddress.Bytes[1];
629 *(Trampoline)++ = ExportFixup->ProcAddress.Bytes[2];
630 *(Trampoline)++ = ExportFixup->ProcAddress.Bytes[3];
631 *(Trampoline)++ = ExportFixup->ProcAddress.Bytes[4];
632 *(Trampoline)++ = ExportFixup->ProcAddress.Bytes[5];
633 *(Trampoline)++ = ExportFixup->ProcAddress.Bytes[6];
634 *(Trampoline)++ = ExportFixup->ProcAddress.Bytes[7];
636 *(Trampoline)++ = 0x41;
637 *(Trampoline)++ = 0xFF;
638 *(Trampoline)++ = 0xE3;
640 #error Unsupported architecture.
643 ProcRva = (DWORD)(ExportFixup->ProcAddress.DWordPtr - (DWORD_PTR)DosHeader);
645 Address = &Functions[NameOrdinals[i]];
646 if (!VirtualProtect(Address, sizeof(DWORD), PAGE_READWRITE, &OldProtect))
648 *ExportFixupRva = *Address;
650 if (!VirtualProtect(Address, sizeof(DWORD), OldProtect, &OldProtect))
653 if (ExportFixup->Name == NULL) {
655 if (!VirtualProtect(Region, ELEMENT_SIZE * EXPORT_FIXUP_COUNT, REGION_PROTECT, &OldProtect))
659 ExportFixupModuleHandle = ModuleHandle;
668 /* Executable images are only mapped by the OS loader. We need to do fixups for native code support. */
669 STDAPI MonoFixupExe(HMODULE ModuleHandle)
671 IMAGE_DOS_HEADER* DosHeader;
672 IMAGE_NT_HEADERS* NtHeaders;
677 DosHeader = (IMAGE_DOS_HEADER*)ModuleHandle;
678 if (DosHeader == NULL)
681 if (DosHeader->e_magic != IMAGE_DOS_SIGNATURE)
684 NtHeaders = (IMAGE_NT_HEADERS*)((DWORD_PTR)DosHeader + DosHeader->e_lfanew);
685 if (NtHeaders->Signature != IMAGE_NT_SIGNATURE)
688 if (NtHeaders->OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR_MAGIC)
691 if (NtHeaders->FileHeader.Characteristics & IMAGE_FILE_DLL)
694 if (NtHeaders->OptionalHeader.NumberOfRvaAndSizes > IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR)
696 IMAGE_DATA_DIRECTORY* CliHeaderDir;
697 MonoCLIHeader* CliHeader;
699 CliHeaderDir = &NtHeaders->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR];
700 if (CliHeaderDir->VirtualAddress)
702 CliHeader = (MonoCLIHeader*)((DWORD_PTR)DosHeader + CliHeaderDir->VirtualAddress);
703 if (CliHeader->ch_flags & CLI_FLAGS_ILONLY)
708 BaseDiff = (DWORD_PTR)DosHeader - NtHeaders->OptionalHeader.ImageBase;
711 if (NtHeaders->FileHeader.Characteristics & IMAGE_FILE_RELOCS_STRIPPED)
714 Address = &NtHeaders->OptionalHeader.ImageBase;
715 if (!VirtualProtect(Address, sizeof(DWORD_PTR), PAGE_READWRITE, &OldProtect))
717 *Address = (DWORD_PTR)DosHeader;
718 if (!VirtualProtect(Address, sizeof(DWORD_PTR), OldProtect, &OldProtect))
721 if (NtHeaders->OptionalHeader.NumberOfRvaAndSizes > IMAGE_DIRECTORY_ENTRY_BASERELOC)
723 IMAGE_DATA_DIRECTORY* BaseRelocDir;
724 IMAGE_BASE_RELOCATION* BaseReloc;
727 ULONG RelocBlockSize;
729 DWORD_PTR UNALIGNED *RelocFixup;
731 BaseRelocDir = &NtHeaders->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC];
732 if (BaseRelocDir->VirtualAddress)
734 BaseReloc = (IMAGE_BASE_RELOCATION*)((DWORD_PTR)DosHeader + BaseRelocDir->VirtualAddress);
735 BaseRelocSize = BaseRelocDir->Size;
737 while (BaseRelocSize)
739 RelocBlockSize = BaseReloc->SizeOfBlock;
741 if (!RelocBlockSize || BaseRelocSize < RelocBlockSize)
744 BaseRelocSize -= RelocBlockSize;
745 RelocBlock = (USHORT*)((DWORD_PTR)BaseReloc + sizeof(IMAGE_BASE_RELOCATION));
746 RelocBlockSize -= sizeof(IMAGE_BASE_RELOCATION);
747 RelocBlockSize /= sizeof(USHORT);
749 while (RelocBlockSize-- != 0)
751 RelocOffset = *RelocBlock & (USHORT)0x0fff;
752 RelocFixup = (DWORD_PTR*)((DWORD_PTR)DosHeader + BaseReloc->VirtualAddress + RelocOffset);
754 switch (*RelocBlock >> 12)
756 case IMAGE_REL_BASED_ABSOLUTE:
760 case IMAGE_REL_BASED_DIR64:
762 case IMAGE_REL_BASED_HIGHLOW:
764 if (!VirtualProtect(RelocFixup, sizeof(DWORD_PTR), PAGE_EXECUTE_READWRITE, &OldProtect))
766 *RelocFixup += BaseDiff;
767 if (!VirtualProtect(RelocFixup, sizeof(DWORD_PTR), OldProtect, &OldProtect))
777 BaseReloc = (IMAGE_BASE_RELOCATION*)RelocBlock;
783 if (NtHeaders->OptionalHeader.NumberOfRvaAndSizes > IMAGE_DIRECTORY_ENTRY_IMPORT)
785 IMAGE_DATA_DIRECTORY* ImportDir;
786 IMAGE_IMPORT_DESCRIPTOR* ImportDesc;
787 HMODULE ImportModuleHandle;
788 IMAGE_THUNK_DATA* ImportThunkData;
789 DWORD_PTR ProcAddress;
791 ImportDir = &NtHeaders->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT];
792 if (ImportDir->VirtualAddress != 0)
794 ImportDesc = (IMAGE_IMPORT_DESCRIPTOR*)((DWORD_PTR)DosHeader + ImportDir->VirtualAddress);
795 while (ImportDesc->Name && ImportDesc->OriginalFirstThunk)
797 ImportModuleHandle = LoadLibraryA((PCSTR)((DWORD_PTR)DosHeader + ImportDesc->Name));
798 if (ImportModuleHandle == NULL)
801 ImportThunkData = (IMAGE_THUNK_DATA*)((DWORD_PTR)DosHeader + ImportDesc->OriginalFirstThunk);
802 while (ImportThunkData->u1.Ordinal != 0)
804 if (IMAGE_SNAP_BY_ORDINAL(ImportThunkData->u1.Ordinal))
805 ProcAddress = (DWORD_PTR)GetProcAddress(ImportModuleHandle, (LPCSTR)IMAGE_ORDINAL(ImportThunkData->u1.Ordinal));
808 IMAGE_IMPORT_BY_NAME* ImportByName = (IMAGE_IMPORT_BY_NAME*)((DWORD_PTR)DosHeader + ImportThunkData->u1.AddressOfData);
809 ProcAddress = (DWORD_PTR)GetProcAddress(ImportModuleHandle, ImportByName->Name);
811 if (ProcAddress == 0)
813 Address = (DWORD_PTR*)((DWORD_PTR)ImportThunkData - ImportDesc->OriginalFirstThunk + ImportDesc->FirstThunk);
814 if (!VirtualProtect(Address, sizeof(DWORD_PTR), PAGE_READWRITE, &OldProtect))
816 *Address = ProcAddress;
817 if (!VirtualProtect(Address, sizeof(DWORD_PTR), OldProtect, &OldProtect))
831 mono_set_act_ctx (const char* file_name)
833 typedef HANDLE (WINAPI* CREATEACTCTXW_PROC) (PCACTCTXW pActCtx);
834 typedef BOOL (WINAPI* ACTIVATEACTCTX_PROC) (HANDLE hActCtx, ULONG_PTR* lpCookie);
836 HMODULE kernel32_handle;
837 CREATEACTCTXW_PROC CreateActCtx_proc;
838 ACTIVATEACTCTX_PROC ActivateActCtx_proc;
840 gunichar2* full_path_utf16;
842 gunichar2* dir_name_utf16;
844 gunichar2* base_name_utf16;
849 kernel32_handle = GetModuleHandle (L"kernel32.dll");
850 if (!kernel32_handle)
852 CreateActCtx_proc = (CREATEACTCTXW_PROC) GetProcAddress (kernel32_handle, "CreateActCtxW");
853 if (!CreateActCtx_proc)
855 ActivateActCtx_proc = (ACTIVATEACTCTX_PROC) GetProcAddress (kernel32_handle, "ActivateActCtx");
856 if (!ActivateActCtx_proc)
859 full_path = mono_path_canonicalize (file_name);
860 full_path_utf16 = g_utf8_to_utf16 (full_path, -1, NULL, NULL, NULL);
861 dir_name = g_path_get_dirname (full_path);
862 dir_name_utf16 = g_utf8_to_utf16 (dir_name, -1, NULL, NULL, NULL);
863 base_name = g_path_get_basename (full_path);
864 base_name_utf16 = g_utf8_to_utf16 (base_name, -1, NULL, NULL, NULL);
869 memset (&act_ctx, 0, sizeof (ACTCTX));
870 act_ctx.cbSize = sizeof (ACTCTX);
871 act_ctx.dwFlags = ACTCTX_FLAG_SET_PROCESS_DEFAULT | ACTCTX_FLAG_ASSEMBLY_DIRECTORY_VALID | ACTCTX_FLAG_RESOURCE_NAME_VALID | ACTCTX_FLAG_APPLICATION_NAME_VALID;
872 act_ctx.lpSource = full_path_utf16;
873 act_ctx.lpAssemblyDirectory = dir_name_utf16;
874 act_ctx.lpResourceName = MAKEINTRESOURCE (CREATEPROCESS_MANIFEST_RESOURCE_ID);
875 act_ctx.lpApplicationName = base_name_utf16;
877 handle = CreateActCtx_proc (&act_ctx);
878 if (handle == INVALID_HANDLE_VALUE && GetLastError () == ERROR_SXS_PROCESS_DEFAULT_ALREADY_SET) {
879 act_ctx.dwFlags &= ~ACTCTX_FLAG_SET_PROCESS_DEFAULT;
880 handle = CreateActCtx_proc (&act_ctx);
883 g_free (base_name_utf16);
884 g_free (dir_name_utf16);
885 g_free (full_path_utf16);
887 if (handle != INVALID_HANDLE_VALUE)
888 ActivateActCtx_proc (handle, &cookie);
892 mono_load_coree (const char* exe_file_name)
894 HMODULE module_handle;
895 gunichar2* file_name;
899 if (coree_module_handle)
902 if (!init_from_coree && exe_file_name)
903 mono_set_act_ctx (exe_file_name);
905 /* ntdll.dll loads mscoree.dll from the system32 directory. */
906 required_size = GetSystemDirectory (NULL, 0);
907 file_name = g_new (gunichar2, required_size + 12);
908 size = GetSystemDirectory (file_name, required_size);
909 g_assert (size < required_size);
910 if (file_name [size - 1] != L'\\')
911 file_name [size++] = L'\\';
912 memcpy (&file_name [size], L"mscoree.dll", 12 * sizeof (gunichar2));
914 module_handle = LoadLibrary (file_name);
917 if (module_handle && !SUCCEEDED (MonoFixupCorEE (module_handle))) {
918 FreeLibrary (module_handle);
919 module_handle = NULL;
922 coree_module_handle = module_handle;
926 mono_fixup_exe_image (MonoImage* image)
928 if (!init_from_coree && image && image->is_module_handle)
929 MonoFixupExe ((HMODULE) image->raw_data);
932 #endif /* HOST_WIN32 */