pe_image.c
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上传用户:kjfoods
上传日期:2020-07-06
资源大小:29949k
文件大小:32k
源码类别:
midi
开发平台:
Unix_Linux
- /*
- * $Id: e6cb36bb78e268c6795f68deddf94be469b564ef $
- *
- * Copyright 1994 Eric Youndale & Erik Bos
- * Copyright 1995 Martin von Löwis
- * Copyright 1996-98 Marcus Meissner
- *
- * based on Eric Youndale's pe-test and:
- *
- * ftp.microsoft.com:/pub/developer/MSDN/CD8/PEFILE.ZIP
- * make that:
- * ftp.microsoft.com:/developr/MSDN/OctCD/PEFILE.ZIP
- *
- * Modified for use with MPlayer, detailed CVS changelog at
- * http://www.mplayerhq.hu/cgi-bin/cvsweb.cgi/main/
- *
- * File now distributed as part of VLC media player with no modifications.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- */
- /* Notes:
- * Before you start changing something in this file be aware of the following:
- *
- * - There are several functions called recursively. In a very subtle and
- * obscure way. DLLs can reference each other recursively etc.
- * - If you want to enhance, speed up or clean up something in here, think
- * twice WHY it is implemented in that strange way. There is usually a reason.
- * Though sometimes it might just be lazyness ;)
- * - In PE_MapImage, right before fixup_imports() all external and internal
- * state MUST be correct since this function can be called with the SAME image
- * AGAIN. (Thats recursion for you.) That means MODREF.module and
- * NE_MODULE.module32.
- * - Sometimes, we can't use Linux mmap() to mmap() the images directly.
- *
- * The problem is, that there is not direct 1:1 mapping from a diskimage and
- * a memoryimage. The headers at the start are mapped linear, but the sections
- * are not. Older x86 pe binaries are 512 byte aligned in file and 4096 byte
- * aligned in memory. Linux likes them 4096 byte aligned in memory (due to
- * x86 pagesize, this cannot be fixed without a rather large kernel rewrite)
- * and 'blocksize' file-aligned (offsets). Since we have 512/1024/2048 (CDROM)
- * and other byte blocksizes, we can't always do this. We *can* do this for
- * newer pe binaries produced by MSVC 5 and later, since they are also aligned
- * to 4096 byte boundaries on disk.
- */
- #include "config.h"
- #include <errno.h>
- #include <assert.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>
- #include <unistd.h>
- #include <sys/types.h>
- #include <sys/stat.h>
- #include <fcntl.h>
- #ifdef HAVE_SYS_MMAN_H
- #include <sys/mman.h>
- #endif
- #include "wine/windef.h"
- #include "wine/winbase.h"
- #include "wine/winerror.h"
- #include "wine/heap.h"
- #include "wine/pe_image.h"
- #include "wine/module.h"
- #include "wine/debugtools.h"
- #include "ext.h"
- #include "win32.h"
- #define RVA(x) ((void *)((char *)load_addr+(unsigned int)(x)))
- #define AdjustPtr(ptr,delta) ((char *)(ptr) + (delta))
- extern void* LookupExternal(const char* library, int ordinal);
- extern void* LookupExternalByName(const char* library, const char* name);
- static void dump_exports( HMODULE hModule )
- {
- char *Module;
- unsigned int i, j;
- u_short *ordinal;
- u_long *function,*functions;
- u_char **name;
- unsigned int load_addr = hModule;
- DWORD rva_start = PE_HEADER(hModule)->OptionalHeader
- .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
- DWORD rva_end = rva_start + PE_HEADER(hModule)->OptionalHeader
- .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
- IMAGE_EXPORT_DIRECTORY *pe_exports = (IMAGE_EXPORT_DIRECTORY*)RVA(rva_start);
- Module = (char*)RVA(pe_exports->Name);
- TRACE("*******EXPORT DATA*******n");
- TRACE("Module name is %s, %ld functions, %ld namesn",
- Module, pe_exports->NumberOfFunctions, pe_exports->NumberOfNames);
- ordinal=(u_short*) RVA(pe_exports->AddressOfNameOrdinals);
- functions=function=(u_long*) RVA(pe_exports->AddressOfFunctions);
- name=(u_char**) RVA(pe_exports->AddressOfNames);
- TRACE(" Ord RVA Addr Namen" );
- for (i=0;i<pe_exports->NumberOfFunctions;i++, function++)
- {
- if (!*function) continue;
- if (TRACE_ON(win32))
- {
- DPRINTF( "%4ld %08lx %p", i + pe_exports->Base, *function, RVA(*function) );
- for (j = 0; j < pe_exports->NumberOfNames; j++)
- if (ordinal[j] == i)
- {
- DPRINTF( " %s", (char*)RVA(name[j]) );
- break;
- }
- if ((*function >= rva_start) && (*function <= rva_end))
- DPRINTF(" (forwarded -> %s)", (char *)RVA(*function));
- DPRINTF("n");
- }
- }
- }
- /* Look up the specified function or ordinal in the exportlist:
- * If it is a string:
- * - look up the name in the Name list.
- * - look up the ordinal with that index.
- * - use the ordinal as offset into the functionlist
- * If it is a ordinal:
- * - use ordinal-pe_export->Base as offset into the functionlist
- */
- FARPROC PE_FindExportedFunction(
- WINE_MODREF *wm,
- LPCSTR funcName,
- WIN_BOOL snoop )
- {
- u_short * ordinals;
- u_long * function;
- u_char ** name;
- const char *ename = NULL;
- int i, ordinal;
- PE_MODREF *pem = &(wm->binfmt.pe);
- IMAGE_EXPORT_DIRECTORY *exports = pem->pe_export;
- unsigned int load_addr = wm->module;
- u_long rva_start, rva_end, addr;
- char * forward;
- if (HIWORD(funcName))
- TRACE("(%s)n",funcName);
- else
- TRACE("(%d)n",(int)funcName);
- if (!exports) {
- /* Not a fatal problem, some apps do
- * GetProcAddress(0,"RegisterPenApp") which triggers this
- * case.
- */
- WARN("Module %08x(%s)/MODREF %p doesn't have a exports table.n",wm->module,wm->modname,pem);
- return NULL;
- }
- ordinals= (u_short*) RVA(exports->AddressOfNameOrdinals);
- function= (u_long*) RVA(exports->AddressOfFunctions);
- name = (u_char **) RVA(exports->AddressOfNames);
- forward = NULL;
- rva_start = PE_HEADER(wm->module)->OptionalHeader
- .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].VirtualAddress;
- rva_end = rva_start + PE_HEADER(wm->module)->OptionalHeader
- .DataDirectory[IMAGE_DIRECTORY_ENTRY_EXPORT].Size;
- if (HIWORD(funcName))
- {
- int min = 0, max = exports->NumberOfNames - 1;
- while (min <= max)
- {
- int res, pos = (min + max) / 2;
- ename = (const char*) RVA(name[pos]);
- if (!(res = strcmp( ename, funcName )))
- {
- ordinal = ordinals[pos];
- goto found;
- }
- if (res > 0) max = pos - 1;
- else min = pos + 1;
- }
- for (i = 0; i < exports->NumberOfNames; i++)
- {
- ename = (const char*) RVA(name[i]);
- if (!strcmp( ename, funcName ))
- {
- ERR( "%s.%s required a linear searchn", wm->modname, funcName );
- ordinal = ordinals[i];
- goto found;
- }
- }
- return NULL;
- }
- else
- {
- ordinal = LOWORD(funcName) - exports->Base;
- if (snoop && name)
- {
- for (i = 0; i < exports->NumberOfNames; i++)
- if (ordinals[i] == ordinal)
- {
- ename = RVA(name[i]);
- break;
- }
- }
- }
- found:
- if (ordinal >= exports->NumberOfFunctions)
- {
- TRACE(" ordinal %ld out of range!n", ordinal + exports->Base );
- return NULL;
- }
- addr = function[ordinal];
- if (!addr) return NULL;
- if ((addr < rva_start) || (addr >= rva_end))
- {
- FARPROC proc = RVA(addr);
- if (snoop)
- {
- if (!ename) ename = "@";
- // proc = SNOOP_GetProcAddress(wm->module,ename,ordinal,proc);
- TRACE("SNOOP_GetProcAddress n/an");
- }
- return proc;
- }
- else
- {
- WINE_MODREF *wm;
- char *forward = RVA(addr);
- char module[256];
- char *end = strchr(forward, '.');
- if (!end) return NULL;
- if (end - forward >= sizeof(module)) return NULL;
- memcpy( module, forward, end - forward );
- module[end-forward] = 0;
- if (!(wm = MODULE_FindModule( module )))
- {
- ERR("module not found for forward '%s'n", forward );
- return NULL;
- }
- return MODULE_GetProcAddress( wm->module, end + 1, snoop );
- }
- }
- static DWORD fixup_imports( WINE_MODREF *wm )
- {
- IMAGE_IMPORT_DESCRIPTOR *pe_imp;
- PE_MODREF *pem;
- unsigned int load_addr = wm->module;
- int i,characteristics_detection=1;
- char *modname;
- assert(wm->type==MODULE32_PE);
- pem = &(wm->binfmt.pe);
- if (pem->pe_export)
- modname = (char*) RVA(pem->pe_export->Name);
- else
- modname = "<unknown>";
- TRACE("Dumping imports listn");
- pe_imp = pem->pe_import;
- if (!pe_imp) return 0;
- /* We assume that we have at least one import with !0 characteristics and
- * detect broken imports with all characteristsics 0 (notably Borland) and
- * switch the detection off for them.
- */
- for (i = 0; pe_imp->Name ; pe_imp++) {
- if (!i && !pe_imp->u.Characteristics)
- characteristics_detection = 0;
- if (characteristics_detection && !pe_imp->u.Characteristics)
- break;
- i++;
- }
- if (!i) return 0;
- wm->nDeps = i;
- wm->deps = HeapAlloc( GetProcessHeap(), 0, i*sizeof(WINE_MODREF *) );
- /* load the imported modules. They are automatically
- * added to the modref list of the process.
- */
- for (i = 0, pe_imp = pem->pe_import; pe_imp->Name ; pe_imp++) {
- WINE_MODREF *wmImp;
- IMAGE_IMPORT_BY_NAME *pe_name;
- PIMAGE_THUNK_DATA import_list,thunk_list;
- char *name = (char *) RVA(pe_imp->Name);
- if (characteristics_detection && !pe_imp->u.Characteristics)
- break;
- //#warning FIXME: here we should fill imports
- TRACE("Loading imports for %s.dlln", name);
- if (pe_imp->u.OriginalFirstThunk != 0) {
- TRACE("Microsoft style imports usedn");
- import_list =(PIMAGE_THUNK_DATA) RVA(pe_imp->u.OriginalFirstThunk);
- thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
- while (import_list->u1.Ordinal) {
- if (IMAGE_SNAP_BY_ORDINAL(import_list->u1.Ordinal)) {
- int ordinal = IMAGE_ORDINAL(import_list->u1.Ordinal);
- // TRACE("--- Ordinal %s,%dn", name, ordinal);
- thunk_list->u1.Function=LookupExternal(name, ordinal);
- } else {
- pe_name = (PIMAGE_IMPORT_BY_NAME)RVA(import_list->u1.AddressOfData);
- // TRACE("--- %s %s.%dn", pe_name->Name, name, pe_name->Hint);
- thunk_list->u1.Function=LookupExternalByName(name, pe_name->Name);
- }
- import_list++;
- thunk_list++;
- }
- } else {
- TRACE("Borland style imports usedn");
- thunk_list = (PIMAGE_THUNK_DATA) RVA(pe_imp->FirstThunk);
- while (thunk_list->u1.Ordinal) {
- if (IMAGE_SNAP_BY_ORDINAL(thunk_list->u1.Ordinal)) {
- int ordinal = IMAGE_ORDINAL(thunk_list->u1.Ordinal);
- TRACE("--- Ordinal %s.%dn",name,ordinal);
- thunk_list->u1.Function=LookupExternal(
- name, ordinal);
- } else {
- pe_name=(PIMAGE_IMPORT_BY_NAME) RVA(thunk_list->u1.AddressOfData);
- TRACE("--- %s %s.%dn",
- pe_name->Name,name,pe_name->Hint);
- thunk_list->u1.Function=LookupExternalByName(
- name, pe_name->Name);
- }
- thunk_list++;
- }
- }
- }
- return 0;
- }
- static int calc_vma_size( HMODULE hModule )
- {
- int i,vma_size = 0;
- IMAGE_SECTION_HEADER *pe_seg = PE_SECTIONS(hModule);
- TRACE("Dump of segment tablen");
- TRACE(" Name VSz Vaddr SzRaw Fileadr *Reloc *Lineum #Reloc #Linum Charn");
- for (i = 0; i< PE_HEADER(hModule)->FileHeader.NumberOfSections; i++)
- {
- TRACE("%8s: %4.4lx %8.8lx %8.8lx %8.8lx %8.8lx %8.8lx %4.4x %4.4x %8.8lxn",
- pe_seg->Name,
- pe_seg->Misc.VirtualSize,
- pe_seg->VirtualAddress,
- pe_seg->SizeOfRawData,
- pe_seg->PointerToRawData,
- pe_seg->PointerToRelocations,
- pe_seg->PointerToLinenumbers,
- pe_seg->NumberOfRelocations,
- pe_seg->NumberOfLinenumbers,
- pe_seg->Characteristics);
- vma_size=max(vma_size, pe_seg->VirtualAddress+pe_seg->SizeOfRawData);
- vma_size=max(vma_size, pe_seg->VirtualAddress+pe_seg->Misc.VirtualSize);
- pe_seg++;
- }
- return vma_size;
- }
- static void do_relocations( unsigned int load_addr, IMAGE_BASE_RELOCATION *r )
- {
- int delta = load_addr - PE_HEADER(load_addr)->OptionalHeader.ImageBase;
- int hdelta = (delta >> 16) & 0xFFFF;
- int ldelta = delta & 0xFFFF;
- if(delta == 0)
- return;
- while(r->VirtualAddress)
- {
- char *page = (char*) RVA(r->VirtualAddress);
- int count = (r->SizeOfBlock - 8)/2;
- int i;
- TRACE_(fixup)("%x relocations for page %lxn",
- count, r->VirtualAddress);
- for(i=0;i<count;i++)
- {
- int offset = r->TypeOffset[i] & 0xFFF;
- int type = r->TypeOffset[i] >> 12;
- // TRACE_(fixup)("patching %x type %xn", offset, type);
- switch(type)
- {
- case IMAGE_REL_BASED_ABSOLUTE: break;
- case IMAGE_REL_BASED_HIGH:
- *(short*)(page+offset) += hdelta;
- break;
- case IMAGE_REL_BASED_LOW:
- *(short*)(page+offset) += ldelta;
- break;
- case IMAGE_REL_BASED_HIGHLOW:
- *(int*)(page+offset) += delta;
- break;
- case IMAGE_REL_BASED_HIGHADJ:
- FIXME("Don't know what to do with IMAGE_REL_BASED_HIGHADJn");
- break;
- case IMAGE_REL_BASED_MIPS_JMPADDR:
- FIXME("Is this a MIPS machine ???n");
- break;
- default:
- FIXME("Unknown fixup typen");
- break;
- }
- }
- r = (IMAGE_BASE_RELOCATION*)((char*)r + r->SizeOfBlock);
- }
- }
- /**********************************************************************
- * PE_LoadImage
- * Load one PE format DLL/EXE into memory
- *
- * Unluckily we can't just mmap the sections where we want them, for
- * (at least) Linux does only support offsets which are page-aligned.
- *
- * BUT we have to map the whole image anyway, for Win32 programs sometimes
- * want to access them. (HMODULE32 point to the start of it)
- */
- HMODULE PE_LoadImage( int handle, LPCSTR filename, WORD *version )
- {
- HMODULE hModule;
- HANDLE mapping;
- IMAGE_NT_HEADERS *nt;
- IMAGE_SECTION_HEADER *pe_sec;
- IMAGE_DATA_DIRECTORY *dir;
- BY_HANDLE_FILE_INFORMATION bhfi;
- int i, rawsize, lowest_va, vma_size, file_size = 0;
- DWORD load_addr = 0, aoep, reloc = 0;
- // struct get_read_fd_request *req = get_req_buffer();
- int unix_handle = handle;
- int page_size = getpagesize();
- // if ( GetFileInformationByHandle( hFile, &bhfi ) )
- // file_size = bhfi.nFileSizeLow;
- file_size=lseek(handle, 0, SEEK_END);
- lseek(handle, 0, SEEK_SET);
- //#warning fix CreateFileMappingA
- mapping = CreateFileMappingA( handle, NULL, PAGE_READONLY | SEC_COMMIT,
- 0, 0, NULL );
- if (!mapping)
- {
- WARN("CreateFileMapping error %ldn", GetLastError() );
- return 0;
- }
- // hModule = (HMODULE)MapViewOfFile( mapping, FILE_MAP_READ, 0, 0, 0 );
- hModule=(HMODULE)mapping;
- // CloseHandle( mapping );
- if (!hModule)
- {
- WARN("MapViewOfFile error %ldn", GetLastError() );
- return 0;
- }
- if ( *(WORD*)hModule !=IMAGE_DOS_SIGNATURE)
- {
- WARN("%s image doesn't have DOS signature, but 0x%04xn", filename,*(WORD*)hModule);
- goto error;
- }
- nt = PE_HEADER( hModule );
- if ( nt->Signature != IMAGE_NT_SIGNATURE )
- {
- WARN("%s image doesn't have PE signature, but 0x%08lxn", filename, nt->Signature );
- goto error;
- }
- if ( nt->FileHeader.Machine != IMAGE_FILE_MACHINE_I386 )
- {
- MESSAGE("Trying to load PE image for unsupported architecture (");
- switch (nt->FileHeader.Machine)
- {
- case IMAGE_FILE_MACHINE_UNKNOWN: MESSAGE("Unknown"); break;
- case IMAGE_FILE_MACHINE_I860: MESSAGE("I860"); break;
- case IMAGE_FILE_MACHINE_R3000: MESSAGE("R3000"); break;
- case IMAGE_FILE_MACHINE_R4000: MESSAGE("R4000"); break;
- case IMAGE_FILE_MACHINE_R10000: MESSAGE("R10000"); break;
- case IMAGE_FILE_MACHINE_ALPHA: MESSAGE("Alpha"); break;
- case IMAGE_FILE_MACHINE_POWERPC: MESSAGE("PowerPC"); break;
- default: MESSAGE("Unknown-%04x", nt->FileHeader.Machine); break;
- }
- MESSAGE(")n");
- goto error;
- }
- pe_sec = PE_SECTIONS( hModule );
- rawsize = 0; lowest_va = 0x10000;
- for (i = 0; i < nt->FileHeader.NumberOfSections; i++)
- {
- if (lowest_va > pe_sec[i].VirtualAddress)
- lowest_va = pe_sec[i].VirtualAddress;
- if (pe_sec[i].Characteristics & IMAGE_SCN_CNT_UNINITIALIZED_DATA)
- continue;
- if (pe_sec[i].PointerToRawData+pe_sec[i].SizeOfRawData > rawsize)
- rawsize = pe_sec[i].PointerToRawData+pe_sec[i].SizeOfRawData;
- }
- if ( file_size && file_size < rawsize )
- {
- ERR("PE module is too small (header: %d, filesize: %d), "
- "probably truncated download?n",
- rawsize, file_size );
- goto error;
- }
- aoep = nt->OptionalHeader.AddressOfEntryPoint;
- if (aoep && (aoep < lowest_va))
- FIXME("VIRUS WARNING: '%s' has an invalid entrypoint (0x%08lx) "
- "below the first virtual address (0x%08x) "
- "(possibly infected by Tchernobyl/SpaceFiller virus)!n",
- filename, aoep, lowest_va );
- /* FIXME: Hack! While we don't really support shared sections yet,
- * this checks for those special cases where the whole DLL
- * consists only of shared sections and is mapped into the
- * shared address space > 2GB. In this case, we assume that
- * the module got mapped at its base address. Thus we simply
- * check whether the module has actually been mapped there
- * and use it, if so. This is needed to get Win95 USER32.DLL
- * to work (until we support shared sections properly).
- */
- if ( nt->OptionalHeader.ImageBase & 0x80000000 )
- {
- HMODULE sharedMod = (HMODULE)nt->OptionalHeader.ImageBase;
- IMAGE_NT_HEADERS *sharedNt = (PIMAGE_NT_HEADERS)
- ( (LPBYTE)sharedMod + ((LPBYTE)nt - (LPBYTE)hModule) );
- /* Well, this check is not really comprehensive,
- but should be good enough for now ... */
- if ( !IsBadReadPtr( (LPBYTE)sharedMod, sizeof(IMAGE_DOS_HEADER) )
- && memcmp( (LPBYTE)sharedMod, (LPBYTE)hModule, sizeof(IMAGE_DOS_HEADER) ) == 0
- && !IsBadReadPtr( sharedNt, sizeof(IMAGE_NT_HEADERS) )
- && memcmp( sharedNt, nt, sizeof(IMAGE_NT_HEADERS) ) == 0 )
- {
- UnmapViewOfFile( (LPVOID)hModule );
- return sharedMod;
- }
- }
- load_addr = nt->OptionalHeader.ImageBase;
- vma_size = calc_vma_size( hModule );
- load_addr = (DWORD)VirtualAlloc( (void*)load_addr, vma_size,
- MEM_RESERVE | MEM_COMMIT,
- PAGE_EXECUTE_READWRITE );
- if (load_addr == 0)
- {
- FIXME("We need to perform base relocations for %sn", filename);
- dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BASERELOC;
- if (dir->Size)
- reloc = dir->VirtualAddress;
- else
- {
- FIXME( "FATAL: Need to relocate %s, but no relocation records present (%s). Try to run that file directly !n",
- filename,
- (nt->FileHeader.Characteristics&IMAGE_FILE_RELOCS_STRIPPED)?
- "stripped during link" : "unknown reason" );
- goto error;
- }
- /* FIXME: If we need to relocate a system DLL (base > 2GB) we should
- * really make sure that the *new* base address is also > 2GB.
- * Some DLLs really check the MSB of the module handle :-/
- */
- if ( nt->OptionalHeader.ImageBase & 0x80000000 )
- ERR( "Forced to relocate system DLL (base > 2GB). This is not good.n" );
- load_addr = (DWORD)VirtualAlloc( NULL, vma_size,
- MEM_RESERVE | MEM_COMMIT,
- PAGE_EXECUTE_READWRITE );
- if (!load_addr) {
- FIXME_(win32)(
- "FATAL: Couldn't load module %s (out of memory, %d needed)!n", filename, vma_size);
- goto error;
- }
- }
- TRACE("Load addr is %lx (base %lx), range %xn",
- load_addr, nt->OptionalHeader.ImageBase, vma_size );
- TRACE_(segment)("Loading %s at %lx, range %xn",
- filename, load_addr, vma_size );
- #if 0
- *(PIMAGE_DOS_HEADER)load_addr = *(PIMAGE_DOS_HEADER)hModule;
- *PE_HEADER( load_addr ) = *nt;
- memcpy( PE_SECTIONS(load_addr), PE_SECTIONS(hModule),
- sizeof(IMAGE_SECTION_HEADER) * nt->FileHeader.NumberOfSections );
- memcpy( load_addr, hModule, lowest_fa );
- #endif
- if ((void*)FILE_dommap( handle, (void *)load_addr, 0, nt->OptionalHeader.SizeOfHeaders,
- 0, 0, PROT_EXEC | PROT_WRITE | PROT_READ,
- MAP_PRIVATE | MAP_FIXED ) != (void*)load_addr)
- {
- ERR_(win32)( "Critical Error: failed to map PE header to necessary address.n");
- goto error;
- }
- pe_sec = PE_SECTIONS( hModule );
- for (i = 0; i < nt->FileHeader.NumberOfSections; i++, pe_sec++)
- {
- if (!pe_sec->SizeOfRawData || !pe_sec->PointerToRawData) continue;
- TRACE("%s: mmaping section %s at %p off %lx size %lx/%lxn",
- filename, pe_sec->Name, (void*)RVA(pe_sec->VirtualAddress),
- pe_sec->PointerToRawData, pe_sec->SizeOfRawData, pe_sec->Misc.VirtualSize );
- if ((void*)FILE_dommap( unix_handle, (void*)RVA(pe_sec->VirtualAddress),
- 0, pe_sec->SizeOfRawData, 0, pe_sec->PointerToRawData,
- PROT_EXEC | PROT_WRITE | PROT_READ,
- MAP_PRIVATE | MAP_FIXED ) != (void*)RVA(pe_sec->VirtualAddress))
- {
- ERR_(win32)( "Critical Error: failed to map PE section to necessary address.n");
- goto error;
- }
- if ((pe_sec->SizeOfRawData < pe_sec->Misc.VirtualSize) &&
- (pe_sec->SizeOfRawData & (page_size-1)))
- {
- DWORD end = (pe_sec->SizeOfRawData & ~(page_size-1)) + page_size;
- if (end > pe_sec->Misc.VirtualSize) end = pe_sec->Misc.VirtualSize;
- TRACE("clearing %p - %pn",
- RVA(pe_sec->VirtualAddress) + pe_sec->SizeOfRawData,
- RVA(pe_sec->VirtualAddress) + end );
- memset( (char*)RVA(pe_sec->VirtualAddress) + pe_sec->SizeOfRawData, 0,
- end - pe_sec->SizeOfRawData );
- }
- }
- if ( reloc )
- do_relocations( load_addr, (IMAGE_BASE_RELOCATION *)RVA(reloc) );
- *version = ( (nt->OptionalHeader.MajorSubsystemVersion & 0xff) << 8 )
- | (nt->OptionalHeader.MinorSubsystemVersion & 0xff);
- UnmapViewOfFile( (LPVOID)hModule );
- return (HMODULE)load_addr;
- error:
- if (unix_handle != -1) close( unix_handle );
- if (load_addr)
- VirtualFree( (LPVOID)load_addr, 0, MEM_RELEASE );
- UnmapViewOfFile( (LPVOID)hModule );
- return 0;
- }
- /**********************************************************************
- * PE_CreateModule
- *
- * Create WINE_MODREF structure for loaded HMODULE32, link it into
- * process modref_list, and fixup all imports.
- *
- * Note: hModule must point to a correctly allocated PE image,
- * with base relocations applied; the 16-bit dummy module
- * associated to hModule must already exist.
- *
- * Note: This routine must always be called in the context of the
- * process that is to own the module to be created.
- */
- WINE_MODREF *PE_CreateModule( HMODULE hModule,
- LPCSTR filename, DWORD flags, WIN_BOOL builtin )
- {
- DWORD load_addr = (DWORD)hModule;
- IMAGE_NT_HEADERS *nt = PE_HEADER(hModule);
- IMAGE_DATA_DIRECTORY *dir;
- IMAGE_IMPORT_DESCRIPTOR *pe_import = NULL;
- IMAGE_EXPORT_DIRECTORY *pe_export = NULL;
- IMAGE_RESOURCE_DIRECTORY *pe_resource = NULL;
- WINE_MODREF *wm;
- int result;
- dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXPORT;
- if (dir->Size)
- pe_export = (PIMAGE_EXPORT_DIRECTORY)RVA(dir->VirtualAddress);
- dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IMPORT;
- if (dir->Size)
- pe_import = (PIMAGE_IMPORT_DESCRIPTOR)RVA(dir->VirtualAddress);
- dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_RESOURCE;
- if (dir->Size)
- pe_resource = (PIMAGE_RESOURCE_DIRECTORY)RVA(dir->VirtualAddress);
- dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_EXCEPTION;
- if (dir->Size) FIXME("Exception directory ignoredn" );
- dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_SECURITY;
- if (dir->Size) FIXME("Security directory ignoredn" );
- dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DEBUG;
- if (dir->Size) TRACE("Debug directory ignoredn" );
- dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COPYRIGHT;
- if (dir->Size) FIXME("Copyright string ignoredn" );
- dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_GLOBALPTR;
- if (dir->Size) FIXME("Global Pointer (MIPS) ignoredn" );
- dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG;
- if (dir->Size) FIXME("Load Configuration directory ignoredn" );
- dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT;
- if (dir->Size) TRACE("Bound Import directory ignoredn" );
- dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_IAT;
- if (dir->Size) TRACE("Import Address Table directory ignoredn" );
- dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT;
- if (dir->Size)
- {
- TRACE("Delayed import, stub calls LoadLibraryn" );
- /*
- * Nothing to do here.
- */
- #ifdef ImgDelayDescr
- /*
- * This code is useful to observe what the heck is going on.
- */
- {
- ImgDelayDescr *pe_delay = NULL;
- pe_delay = (PImgDelayDescr)RVA(dir->VirtualAddress);
- TRACE_(delayhlp)("pe_delay->grAttrs = %08xn", pe_delay->grAttrs);
- TRACE_(delayhlp)("pe_delay->szName = %sn", pe_delay->szName);
- TRACE_(delayhlp)("pe_delay->phmod = %08xn", pe_delay->phmod);
- TRACE_(delayhlp)("pe_delay->pIAT = %08xn", pe_delay->pIAT);
- TRACE_(delayhlp)("pe_delay->pINT = %08xn", pe_delay->pINT);
- TRACE_(delayhlp)("pe_delay->pBoundIAT = %08xn", pe_delay->pBoundIAT);
- TRACE_(delayhlp)("pe_delay->pUnloadIAT = %08xn", pe_delay->pUnloadIAT);
- TRACE_(delayhlp)("pe_delay->dwTimeStamp = %08xn", pe_delay->dwTimeStamp);
- }
- #endif
- }
- dir = nt->OptionalHeader.DataDirectory+IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR;
- if (dir->Size) FIXME("Unknown directory 14 ignoredn" );
- dir = nt->OptionalHeader.DataDirectory+15;
- if (dir->Size) FIXME("Unknown directory 15 ignoredn" );
- wm = (WINE_MODREF *)HeapAlloc( GetProcessHeap(),
- HEAP_ZERO_MEMORY, sizeof(*wm) );
- wm->module = hModule;
- if ( builtin )
- wm->flags |= WINE_MODREF_INTERNAL;
- if ( flags & DONT_RESOLVE_DLL_REFERENCES )
- wm->flags |= WINE_MODREF_DONT_RESOLVE_REFS;
- if ( flags & LOAD_LIBRARY_AS_DATAFILE )
- wm->flags |= WINE_MODREF_LOAD_AS_DATAFILE;
- wm->type = MODULE32_PE;
- wm->binfmt.pe.pe_export = pe_export;
- wm->binfmt.pe.pe_import = pe_import;
- wm->binfmt.pe.pe_resource = pe_resource;
- wm->binfmt.pe.tlsindex = -1;
- wm->filename = malloc(strlen(filename)+1);
- strcpy(wm->filename, filename );
- wm->modname = strrchr( wm->filename, '\' );
- if (!wm->modname) wm->modname = wm->filename;
- else wm->modname++;
- if ( pe_export )
- dump_exports( hModule );
- /* Fixup Imports */
- if ( pe_import
- && !( wm->flags & WINE_MODREF_LOAD_AS_DATAFILE )
- && !( wm->flags & WINE_MODREF_DONT_RESOLVE_REFS )
- && fixup_imports( wm ) )
- {
- /* remove entry from modref chain */
- return NULL;
- }
- return wm;
- return wm;
- }
- /******************************************************************************
- * The PE Library Loader frontend.
- * FIXME: handle the flags.
- */
- WINE_MODREF *PE_LoadLibraryExA (LPCSTR name, DWORD flags)
- {
- HMODULE hModule32;
- WINE_MODREF *wm;
- char filename[256];
- int hFile;
- WORD version = 0;
- strncpy(filename, name, sizeof(filename));
- hFile=open(filename, O_RDONLY);
- if(hFile==-1)
- return NULL;
- hModule32 = PE_LoadImage( hFile, filename, &version );
- if (!hModule32)
- {
- SetLastError( ERROR_OUTOFMEMORY );
- return NULL;
- }
- if ( !(wm = PE_CreateModule( hModule32, filename, flags, FALSE )) )
- {
- ERR( "can't load %sn", filename );
- SetLastError( ERROR_OUTOFMEMORY );
- return NULL;
- }
- close(hFile);
- //printf("^^^^^^^^^^^^^^^^Alloc VM1 %pn", wm);
- return wm;
- }
- /*****************************************************************************
- * PE_UnloadLibrary
- *
- * Unload the library unmapping the image and freeing the modref structure.
- */
- void PE_UnloadLibrary(WINE_MODREF *wm)
- {
- TRACE(" unloading %sn", wm->filename);
- free(wm->filename);
- free(wm->short_filename);
- HeapFree( GetProcessHeap(), 0, wm->deps );
- VirtualFree( (LPVOID)wm->module, 0, MEM_RELEASE );
- HeapFree( GetProcessHeap(), 0, wm );
- //printf("^^^^^^^^^^^^^^^^Free VM1 %pn", wm);
- }
- /*****************************************************************************
- * Load the PE main .EXE. All other loading is done by PE_LoadLibraryExA
- * FIXME: this function should use PE_LoadLibraryExA, but currently can't
- * due to the PROCESS_Create stuff.
- */
- /*
- * This is a dirty hack.
- * The win32 DLLs contain an alloca routine, that first probes the soon
- * to be allocated new memory *below* the current stack pointer in 4KByte
- * increments. After the mem probing below the current %esp, the stack
- * pointer is finally decremented to make room for the "alloca"ed memory.
- * Maybe the probing code is intended to extend the stack on a windows box.
- * Anyway, the linux kernel does *not* extend the stack by simply accessing
- * memory below %esp; it segfaults.
- * The extend_stack_for_dll_alloca() routine just preallocates a big chunk
- * of memory on the stack, for use by the DLLs alloca routine.
- * Added the noinline attribute as e.g. gcc 3.2.2 inlines this function
- * in a way that breaks it.
- */
- static void __attribute__((noinline)) extend_stack_for_dll_alloca(void)
- {
- #if !defined(__FreeBSD__) && !defined(__DragonFly__)
- volatile int* mem=alloca(0x20000);
- *mem=0x1234;
- #endif
- }
- /* Called if the library is loaded or freed.
- * NOTE: if a thread attaches a DLL, the current thread will only do
- * DLL_PROCESS_ATTACH. Only new created threads do DLL_THREAD_ATTACH
- * (SDK)
- */
- WIN_BOOL PE_InitDLL( WINE_MODREF *wm, DWORD type, LPVOID lpReserved )
- {
- WIN_BOOL retv = TRUE;
- assert( wm->type == MODULE32_PE );
- if ((PE_HEADER(wm->module)->FileHeader.Characteristics & IMAGE_FILE_DLL) &&
- (PE_HEADER(wm->module)->OptionalHeader.AddressOfEntryPoint)
- ) {
- DLLENTRYPROC entry ;
- entry = (void*)PE_FindExportedFunction(wm, "DllMain", 0);
- if(entry==NULL)
- entry = (void*)RVA_PTR( wm->module,OptionalHeader.AddressOfEntryPoint );
- TRACE_(relay)("CallTo32(entryproc=%p,module=%08x,type=%ld,res=%p)n",
- entry, wm->module, type, lpReserved );
- TRACE("Entering DllMain(");
- switch(type)
- {
- case DLL_PROCESS_DETACH:
- TRACE("DLL_PROCESS_DETACH) ");
- break;
- case DLL_PROCESS_ATTACH:
- TRACE("DLL_PROCESS_ATTACH) ");
- break;
- case DLL_THREAD_DETACH:
- TRACE("DLL_THREAD_DETACH) ");
- break;
- case DLL_THREAD_ATTACH:
- TRACE("DLL_THREAD_ATTACH) ");
- break;
- }
- TRACE("for %sn", wm->filename);
- extend_stack_for_dll_alloca();
- retv = entry( wm->module, type, lpReserved );
- }
- return retv;
- }
- static LPVOID
- _fixup_address(PIMAGE_OPTIONAL_HEADER opt,int delta,LPVOID addr) {
- if ( ((DWORD)addr>opt->ImageBase) &&
- ((DWORD)addr<opt->ImageBase+opt->SizeOfImage)
- )
- return (LPVOID)(((DWORD)addr)+delta);
- else
- return addr;
- }