2 * coree.c: mscoree.dll functions
5 * Kornel Pal <http://www.kornelpal.hu/>
7 * Copyright (C) 2008 Kornel Pal
16 #include <mono/io-layer/io-layer.h>
17 #include <mono/utils/mono-path.h>
19 #include "metadata-internals.h"
22 #include "domain-internals.h"
23 #include "appdomain.h"
27 #include "environment.h"
32 HMODULE coree_module_handle = NULL;
34 static gboolean init_from_coree = FALSE;
37 mono_get_module_file_name (HMODULE module_handle)
40 gchar* file_name_utf8;
45 file_name = g_new (gunichar2, buffer_size);
48 size = GetModuleFileName (module_handle, file_name, buffer_size);
54 g_assert (size <= buffer_size);
55 if (size != buffer_size)
59 file_name = g_realloc (file_name, buffer_size * sizeof (gunichar2));
62 file_name_utf8 = g_utf16_to_utf8 (file_name, size, NULL, NULL, NULL);
65 return file_name_utf8;
68 /* Entry point called by LdrLoadDll of ntdll.dll after _CorValidateImage. */
69 BOOL STDMETHODCALLTYPE _CorDllMain(HINSTANCE hInst, DWORD dwReason, LPVOID lpReserved)
71 MonoAssembly* assembly;
78 case DLL_PROCESS_ATTACH:
79 DisableThreadLibraryCalls (hInst);
81 file_name = mono_get_module_file_name (hInst);
83 if (mono_get_root_domain ()) {
84 image = mono_image_open_from_module_handle (hInst, mono_path_resolve_symlinks (file_name), TRUE, NULL);
86 init_from_coree = TRUE;
87 mono_runtime_load (file_name, NULL);
88 error = (gchar*) mono_check_corlib_version ();
96 image = mono_image_open (file_name, NULL);
98 image->has_entry_point = TRUE;
99 mono_close_exe_image ();
100 /* Decrement reference count to zero. (Image will not be closed.) */
101 mono_image_close (image);
111 * FIXME: Find a better way to call mono_image_fixup_vtable. Only
112 * loader trampolines should be used and assembly loading should
113 * probably be delayed until the first call to an exported function.
115 if (image->tables [MONO_TABLE_ASSEMBLY].rows && ((MonoCLIImageInfo*) image->image_info)->cli_cli_header.ch_vtable_fixups.rva)
116 assembly = mono_assembly_open (file_name, NULL);
120 case DLL_PROCESS_DETACH:
121 if (lpReserved != NULL)
122 /* The process is terminating. */
124 file_name = mono_get_module_file_name (hInst);
125 image = mono_image_loaded (file_name);
127 mono_image_close (image);
136 /* Called by ntdll.dll reagardless of entry point after _CorValidateImage. */
137 __int32 STDMETHODCALLTYPE _CorExeMain(void)
141 MonoAssembly* assembly;
146 gchar* corlib_version_error;
152 file_name = mono_get_module_file_name (NULL);
153 init_from_coree = TRUE;
154 domain = mono_runtime_load (file_name, NULL);
156 corlib_version_error = (gchar*) mono_check_corlib_version ();
157 if (corlib_version_error) {
158 g_free (corlib_version_error);
160 MessageBox (NULL, L"Corlib not in sync with this runtime.", NULL, MB_ICONERROR);
161 mono_runtime_quit ();
165 assembly = mono_assembly_open (file_name, NULL);
166 mono_close_exe_image ();
169 MessageBox (NULL, L"Cannot open assembly.", NULL, MB_ICONERROR);
170 mono_runtime_quit ();
174 image = assembly->image;
175 entry = mono_image_get_entry_point (image);
178 MessageBox (NULL, L"Assembly doesn't have an entry point.", NULL, MB_ICONERROR);
179 mono_runtime_quit ();
183 method = mono_get_method_checked (image, entry, NULL, NULL, &error);
184 if (method == NULL) {
186 mono_error_cleanup (&error); /* FIXME don't swallow the error */
187 MessageBox (NULL, L"The entry point method could not be loaded.", NULL, MB_ICONERROR);
188 mono_runtime_quit ();
192 argvw = CommandLineToArgvW (GetCommandLine (), &argc);
193 argv = g_new0 (gchar*, argc);
194 argv [0] = file_name;
195 for (i = 1; i < argc; ++i)
196 argv [i] = g_utf16_to_utf8 (argvw [i], -1, NULL, NULL, NULL);
199 mono_runtime_run_main (method, argc, argv, NULL);
200 mono_thread_manage ();
202 mono_runtime_quit ();
204 /* return does not terminate the process. */
205 ExitProcess (mono_environment_exitcode_get ());
208 /* Called by msvcrt.dll when shutting down. */
209 void STDMETHODCALLTYPE CorExitProcess(int exitCode)
211 /* FIXME: This is not currently supported by the runtime. */
213 if (mono_get_root_domain () && !mono_runtime_is_shutting_down ()) {
214 mono_runtime_set_shutting_down ();
215 mono_thread_suspend_all_other_threads ();
216 mono_runtime_quit ();
219 ExitProcess (exitCode);
222 /* Called by ntdll.dll before _CorDllMain and _CorExeMain. */
223 STDAPI _CorValidateImage(PVOID *ImageBase, LPCWSTR FileName)
225 IMAGE_DOS_HEADER* DosHeader;
226 IMAGE_NT_HEADERS32* NtHeaders32;
227 IMAGE_DATA_DIRECTORY* CliHeaderDir;
229 IMAGE_NT_HEADERS64* NtHeaders64;
230 MonoCLIHeader* CliHeader;
236 DosHeader = (IMAGE_DOS_HEADER*)*ImageBase;
237 if (DosHeader->e_magic != IMAGE_DOS_SIGNATURE)
238 return STATUS_INVALID_IMAGE_FORMAT;
240 NtHeaders32 = (IMAGE_NT_HEADERS32*)((DWORD_PTR)DosHeader + DosHeader->e_lfanew);
241 if (NtHeaders32->Signature != IMAGE_NT_SIGNATURE)
242 return STATUS_INVALID_IMAGE_FORMAT;
245 NtHeaders64 = (IMAGE_NT_HEADERS64*)NtHeaders32;
246 if (NtHeaders64->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC)
248 if (NtHeaders64->OptionalHeader.NumberOfRvaAndSizes <= IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR)
249 return STATUS_INVALID_IMAGE_FORMAT;
251 CliHeaderDir = &NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR];
252 if (!CliHeaderDir->VirtualAddress)
253 return STATUS_INVALID_IMAGE_FORMAT;
255 CliHeader = (MonoCLIHeader*)((DWORD_PTR)DosHeader + CliHeaderDir->VirtualAddress);
256 if (CliHeader->ch_flags & CLI_FLAGS_32BITREQUIRED)
257 return STATUS_INVALID_IMAGE_FORMAT;
259 if (CliHeader->ch_flags & CLI_FLAGS_ILONLY)
261 /* Avoid calling _CorDllMain because imports are not resolved for IL only images. */
262 if (NtHeaders64->OptionalHeader.AddressOfEntryPoint != 0)
264 Address = &NtHeaders64->OptionalHeader.AddressOfEntryPoint;
265 if (!VirtualProtect(Address, sizeof(DWORD), PAGE_READWRITE, &OldProtect))
268 if (!VirtualProtect(Address, sizeof(DWORD), OldProtect, &OldProtect))
273 return STATUS_SUCCESS;
276 if (NtHeaders32->OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR32_MAGIC)
277 return STATUS_INVALID_IMAGE_FORMAT;
279 if (NtHeaders32->OptionalHeader.NumberOfRvaAndSizes <= IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR)
280 return STATUS_INVALID_IMAGE_FORMAT;
282 CliHeaderDir = &NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR];
283 if (!CliHeaderDir->VirtualAddress)
284 return STATUS_INVALID_IMAGE_FORMAT;
286 CliHeader = (MonoCLIHeader*)((DWORD_PTR)DosHeader + CliHeaderDir->VirtualAddress);
287 if (!(CliHeader->ch_flags & CLI_FLAGS_ILONLY) || (CliHeader->ch_flags & CLI_FLAGS_32BITREQUIRED))
288 return STATUS_INVALID_IMAGE_FORMAT;
290 /* Fixup IMAGE_NT_HEADERS32 to IMAGE_NT_HEADERS64. */
291 SizeOfHeaders = NtHeaders32->OptionalHeader.SizeOfHeaders;
292 if (SizeOfHeaders < DosHeader->e_lfanew + sizeof(IMAGE_NT_HEADERS64) + (sizeof(IMAGE_SECTION_HEADER) * NtHeaders32->FileHeader.NumberOfSections))
293 return STATUS_INVALID_IMAGE_FORMAT;
295 if (!VirtualProtect(DosHeader, SizeOfHeaders, PAGE_READWRITE, &OldProtect))
298 memmove(NtHeaders64 + 1, IMAGE_FIRST_SECTION(NtHeaders32), sizeof(IMAGE_SECTION_HEADER) * NtHeaders32->FileHeader.NumberOfSections);
300 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES - 1].Size = 0;
301 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES - 1].VirtualAddress = 0;
302 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].Size = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].Size;
303 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].VirtualAddress = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].VirtualAddress;
304 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT].Size = 0;
305 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT].VirtualAddress = 0;
306 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IAT].Size = 0;
307 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IAT].VirtualAddress = 0;
308 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT].Size = 0;
309 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT].VirtualAddress = 0;
310 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG].Size = 0;
311 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG].VirtualAddress = 0;
312 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_TLS].Size = 0;
313 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_TLS].VirtualAddress = 0;
314 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_GLOBALPTR].Size = 0;
315 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_GLOBALPTR].VirtualAddress = 0;
316 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_ARCHITECTURE].Size = 0;
317 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_ARCHITECTURE].VirtualAddress = 0;
318 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DEBUG].Size = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DEBUG].Size;
319 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DEBUG].VirtualAddress = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_DEBUG].VirtualAddress;
320 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].Size = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].Size;
321 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].VirtualAddress = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].VirtualAddress;
322 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_SECURITY].Size = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_SECURITY].Size;
323 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_SECURITY].VirtualAddress = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_SECURITY].VirtualAddress;
324 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXCEPTION].Size = 0;
325 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXCEPTION].VirtualAddress = 0;
326 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].Size = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].Size;
327 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress = NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress;
328 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].Size = 0;
329 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress = 0;
330 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size = 0;
331 NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress = 0;
333 NtHeaders64->OptionalHeader.NumberOfRvaAndSizes = IMAGE_NUMBEROF_DIRECTORY_ENTRIES;
334 NtHeaders64->OptionalHeader.LoaderFlags = NtHeaders32->OptionalHeader.LoaderFlags;
335 NtHeaders64->OptionalHeader.SizeOfHeapCommit = (ULONGLONG)NtHeaders32->OptionalHeader.SizeOfHeapCommit;
336 NtHeaders64->OptionalHeader.SizeOfHeapReserve = (ULONGLONG)NtHeaders32->OptionalHeader.SizeOfHeapReserve;
337 NtHeaders64->OptionalHeader.SizeOfStackCommit = (ULONGLONG)NtHeaders32->OptionalHeader.SizeOfStackCommit;
338 NtHeaders64->OptionalHeader.SizeOfStackReserve = (ULONGLONG)NtHeaders32->OptionalHeader.SizeOfStackReserve;
339 NtHeaders64->OptionalHeader.DllCharacteristics = NtHeaders32->OptionalHeader.DllCharacteristics;
340 NtHeaders64->OptionalHeader.Subsystem = NtHeaders32->OptionalHeader.Subsystem;
341 NtHeaders64->OptionalHeader.CheckSum = NtHeaders32->OptionalHeader.CheckSum;
342 NtHeaders64->OptionalHeader.SizeOfHeaders = NtHeaders32->OptionalHeader.SizeOfHeaders;
343 NtHeaders64->OptionalHeader.SizeOfImage = NtHeaders32->OptionalHeader.SizeOfImage;
344 NtHeaders64->OptionalHeader.Win32VersionValue = NtHeaders32->OptionalHeader.Win32VersionValue;
345 NtHeaders64->OptionalHeader.MinorSubsystemVersion = NtHeaders32->OptionalHeader.MinorSubsystemVersion;
346 NtHeaders64->OptionalHeader.MajorSubsystemVersion = NtHeaders32->OptionalHeader.MajorSubsystemVersion;
347 NtHeaders64->OptionalHeader.MinorImageVersion = NtHeaders32->OptionalHeader.MinorImageVersion;
348 NtHeaders64->OptionalHeader.MajorImageVersion = NtHeaders32->OptionalHeader.MajorImageVersion;
349 NtHeaders64->OptionalHeader.MinorOperatingSystemVersion = NtHeaders32->OptionalHeader.MinorOperatingSystemVersion;
350 NtHeaders64->OptionalHeader.MajorOperatingSystemVersion = NtHeaders32->OptionalHeader.MajorOperatingSystemVersion;
351 NtHeaders64->OptionalHeader.FileAlignment = NtHeaders32->OptionalHeader.FileAlignment;
352 NtHeaders64->OptionalHeader.SectionAlignment = NtHeaders32->OptionalHeader.SectionAlignment;
353 NtHeaders64->OptionalHeader.ImageBase = (ULONGLONG)NtHeaders32->OptionalHeader.ImageBase;
354 /* BaseOfCode is at the same offset. */
355 NtHeaders64->OptionalHeader.AddressOfEntryPoint = 0;
356 NtHeaders64->OptionalHeader.Magic = IMAGE_NT_OPTIONAL_HDR64_MAGIC;
357 NtHeaders64->FileHeader.SizeOfOptionalHeader = sizeof(IMAGE_OPTIONAL_HEADER64);
359 if (!VirtualProtect(DosHeader, SizeOfHeaders, OldProtect, &OldProtect))
362 if (NtHeaders32->OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR32_MAGIC)
363 return STATUS_INVALID_IMAGE_FORMAT;
365 if (NtHeaders32->OptionalHeader.NumberOfRvaAndSizes <= IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR)
366 return STATUS_INVALID_IMAGE_FORMAT;
368 CliHeaderDir = &NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR];
369 if (!CliHeaderDir->VirtualAddress)
370 return STATUS_INVALID_IMAGE_FORMAT;
372 Address = &NtHeaders32->OptionalHeader.AddressOfEntryPoint;
373 if (!VirtualProtect(Address, sizeof(DWORD), PAGE_READWRITE, &OldProtect))
375 if (NtHeaders32->FileHeader.Characteristics & IMAGE_FILE_DLL)
376 *Address = (DWORD)((DWORD_PTR)&_CorDllMain - (DWORD_PTR)DosHeader);
378 *Address = (DWORD)((DWORD_PTR)&_CorExeMain - (DWORD_PTR)DosHeader);
379 if (!VirtualProtect(Address, sizeof(DWORD), OldProtect, &OldProtect))
383 return STATUS_SUCCESS;
386 /* Called by ntdll.dll. */
387 STDAPI_(VOID) _CorImageUnloading(PVOID ImageBase)
392 STDAPI CorBindToRuntimeEx(LPCWSTR pwszVersion, LPCWSTR pwszBuildFlavor, DWORD startupFlags, REFCLSID rclsid, REFIID riid, LPVOID FAR *ppv)
401 STDAPI CorBindToRuntime(LPCWSTR pwszVersion, LPCWSTR pwszBuildFlavor, REFCLSID rclsid, REFIID riid, LPVOID FAR *ppv)
403 return CorBindToRuntimeEx (pwszVersion, pwszBuildFlavor, 0, rclsid, riid, ppv);
406 HMODULE WINAPI MonoLoadImage(LPCWSTR FileName)
411 IMAGE_DOS_HEADER* DosHeader;
412 IMAGE_NT_HEADERS32* NtHeaders32;
414 IMAGE_NT_HEADERS64* NtHeaders64;
416 HMODULE ModuleHandle;
418 FileHandle = CreateFile(FileName, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
419 if (FileHandle == INVALID_HANDLE_VALUE)
422 FileSize = GetFileSize(FileHandle, NULL);
423 if (FileSize == INVALID_FILE_SIZE)
426 MapHandle = CreateFileMapping(FileHandle, NULL, PAGE_READONLY, 0, 0, NULL);
427 if (MapHandle == NULL)
430 DosHeader = (IMAGE_DOS_HEADER*)MapViewOfFile(MapHandle, FILE_MAP_READ, 0, 0, 0);
431 if (DosHeader == NULL)
434 if (FileSize < sizeof(IMAGE_DOS_HEADER) || DosHeader->e_magic != IMAGE_DOS_SIGNATURE || FileSize < DosHeader->e_lfanew + sizeof(IMAGE_NT_HEADERS32))
435 goto InvalidImageFormat;
437 NtHeaders32 = (IMAGE_NT_HEADERS32*)((DWORD_PTR)DosHeader + DosHeader->e_lfanew);
438 if (NtHeaders32->Signature != IMAGE_NT_SIGNATURE)
439 goto InvalidImageFormat;
442 NtHeaders64 = (IMAGE_NT_HEADERS64*)NtHeaders32;
443 if (NtHeaders64->OptionalHeader.Magic == IMAGE_NT_OPTIONAL_HDR64_MAGIC)
445 if (FileSize < DosHeader->e_lfanew + sizeof(IMAGE_NT_HEADERS64) ||
446 NtHeaders64->OptionalHeader.NumberOfRvaAndSizes <= IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR ||
447 !NtHeaders64->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].VirtualAddress)
448 goto InvalidImageFormat;
454 if (NtHeaders32->OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR32_MAGIC ||
455 NtHeaders32->OptionalHeader.NumberOfRvaAndSizes <= IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR ||
456 !NtHeaders32->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR].VirtualAddress)
459 SetLastError(STATUS_INVALID_IMAGE_FORMAT);
466 UnmapViewOfFile(DosHeader);
467 CloseHandle(MapHandle);
469 ModuleHandle = LoadLibrary(FileName);
471 CloseHandle(FileHandle);
475 UnmapViewOfFile(DosHeader);
477 CloseHandle(MapHandle);
479 CloseHandle(FileHandle);
483 typedef struct _EXPORT_FIXUP
490 BYTE Bytes[sizeof(PVOID)];
492 PLABEL_DESCRIPTOR* PLabel;
497 /* Has to be binary ordered. */
498 static const EXPORT_FIXUP ExportFixups[] = {
499 {"CorBindToRuntime", &CorBindToRuntime},
500 {"CorBindToRuntimeEx", &CorBindToRuntimeEx},
501 {"CorExitProcess", &CorExitProcess},
502 {"_CorDllMain", &_CorDllMain},
503 {"_CorExeMain", &_CorExeMain},
504 {"_CorImageUnloading", &_CorImageUnloading},
505 {"_CorValidateImage", &_CorValidateImage},
509 #define EXPORT_FIXUP_COUNT (sizeof(ExportFixups) / sizeof(EXPORT_FIXUP) - 1)
511 static HMODULE ExportFixupModuleHandle = NULL;
512 static DWORD ExportFixupRvas[EXPORT_FIXUP_COUNT];
514 /* Fixup exported functions of mscoree.dll to our implementations. */
515 STDAPI MonoFixupCorEE(HMODULE ModuleHandle)
517 IMAGE_DOS_HEADER* DosHeader;
518 IMAGE_NT_HEADERS* NtHeaders;
519 IMAGE_DATA_DIRECTORY* ExportDataDir;
520 IMAGE_EXPORT_DIRECTORY* ExportDir;
524 EXPORT_FIXUP* ExportFixup;
525 DWORD* ExportFixupRva;
532 MEMORY_BASIC_INFORMATION MemoryInfo;
537 PLABEL_DESCRIPTOR* PLabel;
539 #define ELEMENT_SIZE sizeof(PLABEL_DESCRIPTOR)
540 #define REGION_WRITE_PROTECT PAGE_READWRITE
541 #define REGION_PROTECT PAGE_READ
545 #define ELEMENT_SIZE 13
546 #define REGION_WRITE_PROTECT PAGE_EXECUTE_READWRITE
547 #define REGION_PROTECT PAGE_EXECUTE_READ
551 if (ExportFixupModuleHandle != NULL)
552 return ModuleHandle == ExportFixupModuleHandle ? S_OK : E_FAIL;
554 DosHeader = (IMAGE_DOS_HEADER*)ModuleHandle;
555 if (DosHeader == NULL)
558 if (DosHeader->e_magic != IMAGE_DOS_SIGNATURE)
561 NtHeaders = (IMAGE_NT_HEADERS*)((DWORD_PTR)DosHeader + DosHeader->e_lfanew);
562 if (NtHeaders->Signature != IMAGE_NT_SIGNATURE)
565 if (NtHeaders->OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR_MAGIC)
568 if (NtHeaders->OptionalHeader.NumberOfRvaAndSizes <= IMAGE_DIRECTORY_ENTRY_EXPORT)
571 ExportDataDir = &NtHeaders->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT];
572 if (!ExportDataDir->VirtualAddress)
576 /* Allocate memory after base address because RVAs are 32-bit unsigned integers. */
577 RegionBase = DosHeader;
578 MaxRegionBase = (PVOID)((DWORD_PTR)RegionBase + (DWORD_PTR)(0x100000000L - (ELEMENT_SIZE * (EXPORT_FIXUP_COUNT - 1))));
581 if (!VirtualQuery(RegionBase, &MemoryInfo, sizeof(MEMORY_BASIC_INFORMATION)))
583 if (MemoryInfo.State == MEM_FREE && MemoryInfo.RegionSize >= ELEMENT_SIZE * EXPORT_FIXUP_COUNT)
585 Region = VirtualAlloc(RegionBase, ELEMENT_SIZE * EXPORT_FIXUP_COUNT, MEM_COMMIT | MEM_RESERVE, REGION_WRITE_PROTECT);
589 RegionBase = (PVOID)((DWORD_PTR)MemoryInfo.BaseAddress + (DWORD_PTR)MemoryInfo.RegionSize);
590 if (RegionBase > MaxRegionBase)
591 return E_OUTOFMEMORY;
595 PLabel = (PLABEL_DESCRIPTOR*)Region;
597 Trampoline = (BYTE*)Region;
601 ExportDir = (IMAGE_EXPORT_DIRECTORY*)((DWORD_PTR)DosHeader + ExportDataDir->VirtualAddress);
602 Functions = (DWORD*)((DWORD_PTR)DosHeader + ExportDir->AddressOfFunctions);
603 Names = (DWORD*)((DWORD_PTR)DosHeader + ExportDir->AddressOfNames);
604 NameOrdinals = (WORD*)((DWORD_PTR)DosHeader + ExportDir->AddressOfNameOrdinals);
605 ExportFixup = (EXPORT_FIXUP*)&ExportFixups;
606 ExportFixupRva = (DWORD*)&ExportFixupRvas;
608 for (i = 0; i < ExportDir->NumberOfNames; i++)
610 cmp = strcmp((LPCSTR)((DWORD_PTR)DosHeader + Names[i]), ExportFixup->Name);
618 ProcRva = (DWORD)((DWORD_PTR)PLabel - (DWORD_PTR)DosHeader);
619 *(PLabel)++ = *ExportFixup->ProcAddress.PLabel;
620 #elif defined(_M_AMD64)
621 ProcRva = (DWORD)((DWORD_PTR)Trampoline - (DWORD_PTR)DosHeader);
622 /* mov r11, ExportFixup->ProcAddress */
623 *(Trampoline)++ = 0x49;
624 *(Trampoline)++ = 0xBB;
625 *(Trampoline)++ = ExportFixup->ProcAddress.Bytes[0];
626 *(Trampoline)++ = ExportFixup->ProcAddress.Bytes[1];
627 *(Trampoline)++ = ExportFixup->ProcAddress.Bytes[2];
628 *(Trampoline)++ = ExportFixup->ProcAddress.Bytes[3];
629 *(Trampoline)++ = ExportFixup->ProcAddress.Bytes[4];
630 *(Trampoline)++ = ExportFixup->ProcAddress.Bytes[5];
631 *(Trampoline)++ = ExportFixup->ProcAddress.Bytes[6];
632 *(Trampoline)++ = ExportFixup->ProcAddress.Bytes[7];
634 *(Trampoline)++ = 0x41;
635 *(Trampoline)++ = 0xFF;
636 *(Trampoline)++ = 0xE3;
638 #error Unsupported architecture.
641 ProcRva = (DWORD)(ExportFixup->ProcAddress.DWordPtr - (DWORD_PTR)DosHeader);
643 Address = &Functions[NameOrdinals[i]];
644 if (!VirtualProtect(Address, sizeof(DWORD), PAGE_READWRITE, &OldProtect))
646 *ExportFixupRva = *Address;
648 if (!VirtualProtect(Address, sizeof(DWORD), OldProtect, &OldProtect))
651 if (ExportFixup->Name == NULL) {
653 if (!VirtualProtect(Region, ELEMENT_SIZE * EXPORT_FIXUP_COUNT, REGION_PROTECT, &OldProtect))
657 ExportFixupModuleHandle = ModuleHandle;
666 /* Executable images are only mapped by the OS loader. We need to do fixups for native code support. */
667 STDAPI MonoFixupExe(HMODULE ModuleHandle)
669 IMAGE_DOS_HEADER* DosHeader;
670 IMAGE_NT_HEADERS* NtHeaders;
675 DosHeader = (IMAGE_DOS_HEADER*)ModuleHandle;
676 if (DosHeader == NULL)
679 if (DosHeader->e_magic != IMAGE_DOS_SIGNATURE)
682 NtHeaders = (IMAGE_NT_HEADERS*)((DWORD_PTR)DosHeader + DosHeader->e_lfanew);
683 if (NtHeaders->Signature != IMAGE_NT_SIGNATURE)
686 if (NtHeaders->OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR_MAGIC)
689 if (NtHeaders->FileHeader.Characteristics & IMAGE_FILE_DLL)
692 if (NtHeaders->OptionalHeader.NumberOfRvaAndSizes > IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR)
694 IMAGE_DATA_DIRECTORY* CliHeaderDir;
695 MonoCLIHeader* CliHeader;
697 CliHeaderDir = &NtHeaders->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR];
698 if (CliHeaderDir->VirtualAddress)
700 CliHeader = (MonoCLIHeader*)((DWORD_PTR)DosHeader + CliHeaderDir->VirtualAddress);
701 if (CliHeader->ch_flags & CLI_FLAGS_ILONLY)
706 BaseDiff = (DWORD_PTR)DosHeader - NtHeaders->OptionalHeader.ImageBase;
709 if (NtHeaders->FileHeader.Characteristics & IMAGE_FILE_RELOCS_STRIPPED)
712 Address = &NtHeaders->OptionalHeader.ImageBase;
713 if (!VirtualProtect(Address, sizeof(DWORD_PTR), PAGE_READWRITE, &OldProtect))
715 *Address = (DWORD_PTR)DosHeader;
716 if (!VirtualProtect(Address, sizeof(DWORD_PTR), OldProtect, &OldProtect))
719 if (NtHeaders->OptionalHeader.NumberOfRvaAndSizes > IMAGE_DIRECTORY_ENTRY_BASERELOC)
721 IMAGE_DATA_DIRECTORY* BaseRelocDir;
722 IMAGE_BASE_RELOCATION* BaseReloc;
725 ULONG RelocBlockSize;
727 DWORD_PTR UNALIGNED *RelocFixup;
729 BaseRelocDir = &NtHeaders->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC];
730 if (BaseRelocDir->VirtualAddress)
732 BaseReloc = (IMAGE_BASE_RELOCATION*)((DWORD_PTR)DosHeader + BaseRelocDir->VirtualAddress);
733 BaseRelocSize = BaseRelocDir->Size;
735 while (BaseRelocSize)
737 RelocBlockSize = BaseReloc->SizeOfBlock;
739 if (!RelocBlockSize || BaseRelocSize < RelocBlockSize)
742 BaseRelocSize -= RelocBlockSize;
743 RelocBlock = (USHORT*)((DWORD_PTR)BaseReloc + sizeof(IMAGE_BASE_RELOCATION));
744 RelocBlockSize -= sizeof(IMAGE_BASE_RELOCATION);
745 RelocBlockSize /= sizeof(USHORT);
747 while (RelocBlockSize-- != 0)
749 RelocOffset = *RelocBlock & (USHORT)0x0fff;
750 RelocFixup = (DWORD_PTR*)((DWORD_PTR)DosHeader + BaseReloc->VirtualAddress + RelocOffset);
752 switch (*RelocBlock >> 12)
754 case IMAGE_REL_BASED_ABSOLUTE:
758 case IMAGE_REL_BASED_DIR64:
760 case IMAGE_REL_BASED_HIGHLOW:
762 if (!VirtualProtect(RelocFixup, sizeof(DWORD_PTR), PAGE_EXECUTE_READWRITE, &OldProtect))
764 *RelocFixup += BaseDiff;
765 if (!VirtualProtect(RelocFixup, sizeof(DWORD_PTR), OldProtect, &OldProtect))
775 BaseReloc = (IMAGE_BASE_RELOCATION*)RelocBlock;
781 if (NtHeaders->OptionalHeader.NumberOfRvaAndSizes > IMAGE_DIRECTORY_ENTRY_IMPORT)
783 IMAGE_DATA_DIRECTORY* ImportDir;
784 IMAGE_IMPORT_DESCRIPTOR* ImportDesc;
785 HMODULE ImportModuleHandle;
786 IMAGE_THUNK_DATA* ImportThunkData;
787 DWORD_PTR ProcAddress;
789 ImportDir = &NtHeaders->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT];
790 if (ImportDir->VirtualAddress != 0)
792 ImportDesc = (IMAGE_IMPORT_DESCRIPTOR*)((DWORD_PTR)DosHeader + ImportDir->VirtualAddress);
793 while (ImportDesc->Name && ImportDesc->OriginalFirstThunk)
795 ImportModuleHandle = LoadLibraryA((PCSTR)((DWORD_PTR)DosHeader + ImportDesc->Name));
796 if (ImportModuleHandle == NULL)
799 ImportThunkData = (IMAGE_THUNK_DATA*)((DWORD_PTR)DosHeader + ImportDesc->OriginalFirstThunk);
800 while (ImportThunkData->u1.Ordinal != 0)
802 if (IMAGE_SNAP_BY_ORDINAL(ImportThunkData->u1.Ordinal))
803 ProcAddress = (DWORD_PTR)GetProcAddress(ImportModuleHandle, (LPCSTR)IMAGE_ORDINAL(ImportThunkData->u1.Ordinal));
806 IMAGE_IMPORT_BY_NAME* ImportByName = (IMAGE_IMPORT_BY_NAME*)((DWORD_PTR)DosHeader + ImportThunkData->u1.AddressOfData);
807 ProcAddress = (DWORD_PTR)GetProcAddress(ImportModuleHandle, ImportByName->Name);
809 if (ProcAddress == 0)
811 Address = (DWORD_PTR*)((DWORD_PTR)ImportThunkData - ImportDesc->OriginalFirstThunk + ImportDesc->FirstThunk);
812 if (!VirtualProtect(Address, sizeof(DWORD_PTR), PAGE_READWRITE, &OldProtect))
814 *Address = ProcAddress;
815 if (!VirtualProtect(Address, sizeof(DWORD_PTR), OldProtect, &OldProtect))
829 mono_set_act_ctx (const char* file_name)
831 typedef HANDLE (WINAPI* CREATEACTCTXW_PROC) (PCACTCTXW pActCtx);
832 typedef BOOL (WINAPI* ACTIVATEACTCTX_PROC) (HANDLE hActCtx, ULONG_PTR* lpCookie);
834 HMODULE kernel32_handle;
835 CREATEACTCTXW_PROC CreateActCtx_proc;
836 ACTIVATEACTCTX_PROC ActivateActCtx_proc;
838 gunichar2* full_path_utf16;
840 gunichar2* dir_name_utf16;
842 gunichar2* base_name_utf16;
847 kernel32_handle = GetModuleHandle (L"kernel32.dll");
848 if (!kernel32_handle)
850 CreateActCtx_proc = (CREATEACTCTXW_PROC) GetProcAddress (kernel32_handle, "CreateActCtxW");
851 if (!CreateActCtx_proc)
853 ActivateActCtx_proc = (ACTIVATEACTCTX_PROC) GetProcAddress (kernel32_handle, "ActivateActCtx");
854 if (!ActivateActCtx_proc)
857 full_path = mono_path_canonicalize (file_name);
858 full_path_utf16 = g_utf8_to_utf16 (full_path, -1, NULL, NULL, NULL);
859 dir_name = g_path_get_dirname (full_path);
860 dir_name_utf16 = g_utf8_to_utf16 (dir_name, -1, NULL, NULL, NULL);
861 base_name = g_path_get_basename (full_path);
862 base_name_utf16 = g_utf8_to_utf16 (base_name, -1, NULL, NULL, NULL);
867 memset (&act_ctx, 0, sizeof (ACTCTX));
868 act_ctx.cbSize = sizeof (ACTCTX);
869 act_ctx.dwFlags = ACTCTX_FLAG_SET_PROCESS_DEFAULT | ACTCTX_FLAG_ASSEMBLY_DIRECTORY_VALID | ACTCTX_FLAG_RESOURCE_NAME_VALID | ACTCTX_FLAG_APPLICATION_NAME_VALID;
870 act_ctx.lpSource = full_path_utf16;
871 act_ctx.lpAssemblyDirectory = dir_name_utf16;
872 act_ctx.lpResourceName = MAKEINTRESOURCE (CREATEPROCESS_MANIFEST_RESOURCE_ID);
873 act_ctx.lpApplicationName = base_name_utf16;
875 handle = CreateActCtx_proc (&act_ctx);
876 if (handle == INVALID_HANDLE_VALUE && GetLastError () == ERROR_SXS_PROCESS_DEFAULT_ALREADY_SET) {
877 act_ctx.dwFlags &= ~ACTCTX_FLAG_SET_PROCESS_DEFAULT;
878 handle = CreateActCtx_proc (&act_ctx);
881 g_free (base_name_utf16);
882 g_free (dir_name_utf16);
883 g_free (full_path_utf16);
885 if (handle != INVALID_HANDLE_VALUE)
886 ActivateActCtx_proc (handle, &cookie);
890 mono_load_coree (const char* exe_file_name)
892 HMODULE module_handle;
893 gunichar2* file_name;
897 if (coree_module_handle)
900 if (!init_from_coree && exe_file_name)
901 mono_set_act_ctx (exe_file_name);
903 /* ntdll.dll loads mscoree.dll from the system32 directory. */
904 required_size = GetSystemDirectory (NULL, 0);
905 file_name = g_new (gunichar2, required_size + 12);
906 size = GetSystemDirectory (file_name, required_size);
907 g_assert (size < required_size);
908 if (file_name [size - 1] != L'\\')
909 file_name [size++] = L'\\';
910 memcpy (&file_name [size], L"mscoree.dll", 12 * sizeof (gunichar2));
912 module_handle = LoadLibrary (file_name);
915 if (module_handle && !SUCCEEDED (MonoFixupCorEE (module_handle))) {
916 FreeLibrary (module_handle);
917 module_handle = NULL;
920 coree_module_handle = module_handle;
924 mono_fixup_exe_image (MonoImage* image)
926 if (!init_from_coree && image && image->is_module_handle)
927 MonoFixupExe ((HMODULE) image->raw_data);
930 #endif /* HOST_WIN32 */