2 * Win32 builtin functions
4 * Copyright 1997 Alexandre Julliard
16 #include <sys/types.h>
17 #ifdef HAVE_SYS_MMAN_H
22 #include "wine/winbase16.h"
30 #include "debugtools.h"
32 DEFAULT_DEBUG_CHANNEL(module);
33 DECLARE_DEBUG_CHANNEL(relay);
40 IMAGE_RESOURCE_DATA_ENTRY *entries;
47 const IMAGE_NT_HEADERS *nt; /* NT header */
48 const char *filename; /* DLL file name */
49 } BUILTIN32_DESCRIPTOR;
51 extern void RELAY_SetupDLL( const char *module );
53 static BUILTIN32_DESCRIPTOR builtin_dlls[MAX_DLLS];
57 /***********************************************************************
60 void *BUILTIN32_dlopen( const char *name )
65 if ((p = strrchr( name, '/' ))) name = p + 1;
66 if ((p = strrchr( name, '\\' ))) name = p + 1;
67 sprintf( buffer, "lib%s", name );
68 for (p = buffer; *p; p++) *p = tolower(*p);
69 if ((p = strrchr( buffer, '.' )) && (!strcmp( p, ".dll" ) || !strcmp( p, ".exe" ))) *p = 0;
70 strcat( buffer, ".so" );
72 if (!(handle = ELFDLL_dlopen( buffer, RTLD_NOW )))
76 p = strchr(pErr, ':');
78 (!strncmp(p, ": undefined symbol", 18))) /* undef symbol -> ERR() */
79 ERR("failed to load %s: %s\n", buffer, pErr);
80 else /* WARN() for libraries that are supposed to be native */
81 WARN("failed to load %s: %s\n", buffer, pErr );
89 /***********************************************************************
92 int BUILTIN32_dlclose( void *handle )
95 /* FIXME: should unregister descriptors first */
96 /* return dlclose( handle ); */
102 /***********************************************************************
105 * Adjust an array of pointers to make them into RVAs.
107 static inline void fixup_rva_ptrs( void *array, void *base, int count )
109 void **ptr = (void **)array;
112 if (*ptr) *ptr = (void *)((char *)*ptr - (char *)base);
118 /***********************************************************************
121 static void fixup_resources( IMAGE_RESOURCE_DIRECTORY *dir, char *root, void *base )
123 IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
126 entry = (IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
127 for (i = 0; i < dir->NumberOfNamedEntries + dir->NumberOfIdEntries; i++, entry++)
129 void *ptr = root + entry->u2.s.OffsetToDirectory;
130 if (entry->u2.s.DataIsDirectory) fixup_resources( ptr, root, base );
133 IMAGE_RESOURCE_DATA_ENTRY *data = ptr;
134 fixup_rva_ptrs( &data->OffsetToData, base, 1 );
140 /***********************************************************************
141 * BUILTIN32_DoLoadImage
143 * Load a built-in Win32 module. Helper function for BUILTIN32_LoadImage.
145 static HMODULE BUILTIN32_DoLoadImage( const BUILTIN32_DESCRIPTOR *descr )
147 IMAGE_DATA_DIRECTORY *dir;
148 IMAGE_DOS_HEADER *dos;
149 IMAGE_NT_HEADERS *nt;
150 IMAGE_SECTION_HEADER *sec;
151 INT size, nb_sections;
152 BYTE *addr, *code_start, *data_start;
153 int page_size = VIRTUAL_GetPageSize();
155 /* Allocate the module */
157 nb_sections = 2; /* code + data */
159 size = (sizeof(IMAGE_DOS_HEADER)
160 + sizeof(IMAGE_NT_HEADERS)
161 + nb_sections * sizeof(IMAGE_SECTION_HEADER));
163 assert( size <= page_size );
165 if (descr->nt->OptionalHeader.ImageBase)
167 void *base = (void *)descr->nt->OptionalHeader.ImageBase;
168 if ((addr = VIRTUAL_mmap( -1, base, page_size, 0,
169 PROT_READ|PROT_WRITE, MAP_FIXED )) != base)
171 ERR("failed to map over PE header for %s at %p\n", descr->filename, base );
177 if (!(addr = VirtualAlloc( NULL, page_size, MEM_COMMIT, PAGE_READWRITE ))) return 0;
180 dos = (IMAGE_DOS_HEADER *)addr;
181 nt = (IMAGE_NT_HEADERS *)(dos + 1);
182 sec = (IMAGE_SECTION_HEADER *)(nt + 1);
183 code_start = addr + page_size;
186 data_start = code_start + page_size;
188 /* Build the DOS and NT headers */
190 dos->e_magic = IMAGE_DOS_SIGNATURE;
191 dos->e_lfanew = sizeof(*dos);
195 nt->FileHeader.NumberOfSections = nb_sections;
196 nt->OptionalHeader.SizeOfCode = data_start - code_start;
197 nt->OptionalHeader.SizeOfInitializedData = 0;
198 nt->OptionalHeader.SizeOfUninitializedData = 0;
199 nt->OptionalHeader.ImageBase = (DWORD)addr;
201 fixup_rva_ptrs( &nt->OptionalHeader.AddressOfEntryPoint, addr, 1 );
203 /* Build the code section */
205 strcpy( sec->Name, ".text" );
206 sec->SizeOfRawData = data_start - code_start;
207 sec->Misc.VirtualSize = sec->SizeOfRawData;
208 sec->VirtualAddress = code_start - addr;
209 sec->PointerToRawData = code_start - addr;
210 sec->Characteristics = (IMAGE_SCN_CNT_CODE | IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ);
213 /* Build the data section */
215 strcpy( sec->Name, ".data" );
216 sec->SizeOfRawData = 0;
217 sec->Misc.VirtualSize = sec->SizeOfRawData;
218 sec->VirtualAddress = data_start - addr;
219 sec->PointerToRawData = data_start - addr;
220 sec->Characteristics = (IMAGE_SCN_CNT_INITIALIZED_DATA |
221 IMAGE_SCN_MEM_WRITE | IMAGE_SCN_MEM_READ);
224 /* Build the import directory */
226 dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_IMPORT_DIRECTORY];
229 IMAGE_IMPORT_DESCRIPTOR *imports = (void *)dir->VirtualAddress;
230 fixup_rva_ptrs( &dir->VirtualAddress, addr, 1 );
231 /* we can fixup everything at once since we only have pointers and 0 values */
232 fixup_rva_ptrs( imports, addr, dir->Size / sizeof(void*) );
235 /* Build the resource directory */
237 dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_RESOURCE_DIRECTORY];
240 void *ptr = (void *)dir->VirtualAddress;
241 fixup_rva_ptrs( &dir->VirtualAddress, addr, 1 );
242 fixup_resources( ptr, ptr, addr );
245 /* Build the export directory */
247 dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_EXPORT_DIRECTORY];
250 IMAGE_EXPORT_DIRECTORY *exports = (void *)dir->VirtualAddress;
251 fixup_rva_ptrs( &dir->VirtualAddress, addr, 1 );
252 fixup_rva_ptrs( (void *)exports->AddressOfFunctions, addr, exports->NumberOfFunctions );
253 fixup_rva_ptrs( (void *)exports->AddressOfNames, addr, exports->NumberOfNames );
254 fixup_rva_ptrs( &exports->Name, addr, 1 );
255 fixup_rva_ptrs( &exports->AddressOfFunctions, addr, 1 );
256 fixup_rva_ptrs( &exports->AddressOfNames, addr, 1 );
257 fixup_rva_ptrs( &exports->AddressOfNameOrdinals, addr, 1 );
259 /* Setup relay debugging entry points */
260 if (WARN_ON(relay) || TRACE_ON(relay)) RELAY_SetupDLL( addr );
263 return (HMODULE)addr;
266 /***********************************************************************
267 * BUILTIN32_LoadLibraryExA
269 * Partly copied from the original PE_ version.
272 WINE_MODREF *BUILTIN32_LoadLibraryExA(LPCSTR path, DWORD flags)
276 char dllname[20], *p;
281 /* Fix the name in case we have a full path and extension */
283 if ((p = strrchr( name, '\\' ))) name = p + 1;
284 if ((p = strrchr( name, '/' ))) name = p + 1;
286 if (strlen(name) >= sizeof(dllname)-4) goto error;
288 strcpy( dllname, name );
289 p = strrchr( dllname, '.' );
290 if (!p) strcat( dllname, ".dll" );
292 /* Search built-in descriptor */
293 for (i = 0; i < nb_dlls; i++)
294 if (!strcasecmp( builtin_dlls[i].filename, dllname )) goto found;
296 if ((handle = BUILTIN32_dlopen( dllname )))
298 for (i = 0; i < nb_dlls; i++)
299 if (!strcasecmp( builtin_dlls[i].filename, dllname )) goto found;
300 ERR( "loaded .so but dll %s still not found\n", dllname );
301 BUILTIN32_dlclose( handle );
305 SetLastError( ERROR_FILE_NOT_FOUND );
309 /* Load built-in module */
310 if (!(module = BUILTIN32_DoLoadImage( &builtin_dlls[i] ))) return NULL;
312 /* Create 32-bit MODREF */
313 if ( !(wm = PE_CreateModule( module, path, flags, -1, TRUE )) )
315 ERR( "can't load %s\n", path );
316 SetLastError( ERROR_OUTOFMEMORY );
320 wm->refCount++; /* we don't support freeing builtin dlls (FIXME)*/
324 /***********************************************************************
325 * BUILTIN32_LoadExeModule
327 HMODULE BUILTIN32_LoadExeModule(void)
331 /* Search built-in EXE descriptor */
332 for ( i = 0; i < nb_dlls; i++ )
333 if ( !(builtin_dlls[i].nt->FileHeader.Characteristics & IMAGE_FILE_DLL) )
337 MESSAGE( "More than one built-in EXE module loaded!\n" );
346 MESSAGE( "No built-in EXE module loaded! Did you create a .spec file?\n" );
350 /* Load built-in module */
351 return BUILTIN32_DoLoadImage( &builtin_dlls[exe] );
355 /***********************************************************************
356 * BUILTIN32_RegisterDLL
358 * Register a built-in DLL descriptor.
360 void BUILTIN32_RegisterDLL( const IMAGE_NT_HEADERS *header, const char *filename )
362 assert( nb_dlls < MAX_DLLS );
363 builtin_dlls[nb_dlls].nt = header;
364 builtin_dlls[nb_dlls].filename = filename;
368 /***********************************************************************
369 * BUILTIN32_Unimplemented
371 * This function is called for unimplemented 32-bit entry points (declared
372 * as 'stub' in the spec file).
374 void BUILTIN32_Unimplemented( const char *dllname, const char *funcname )
376 __RESTORE_ES; /* Just in case */
378 MESSAGE( "FATAL: No handler for Win32 routine %s.%s", dllname, funcname );
380 MESSAGE( " (called from %p)", __builtin_return_address(1) );