/* * Win32 builtin dlls support * * Copyright 2000 Alexandre Julliard * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include #include #include #include #include #include #include #include #ifdef HAVE_SYS_MMAN_H #include #endif #ifdef HAVE_SYS_RESOURCE_H # include #endif #include #include #ifdef __APPLE__ #include #define environ (*_NSGetEnviron()) #include #define LoadResource MacLoadResource #define GetCurrentThread MacGetCurrentThread #include #undef LoadResource #undef GetCurrentThread #include #include #else extern char **environ; #endif #define NONAMELESSUNION #define NONAMELESSSTRUCT #include "windef.h" #include "winbase.h" #include "wine/asm.h" /* argc/argv for the Windows application */ int __wine_main_argc = 0; char **__wine_main_argv = NULL; WCHAR **__wine_main_wargv = NULL; char **__wine_main_environ = NULL; #define MAX_DLLS 100 static struct { const IMAGE_NT_HEADERS *nt; /* NT header */ const char *filename; /* DLL file name */ } builtin_dlls[MAX_DLLS]; static int nb_dlls; static const IMAGE_NT_HEADERS *main_exe; typedef void (*load_dll_callback_t)( void *, const char * ); static load_dll_callback_t load_dll_callback; extern void *wine_anon_mmap( void *start, size_t size, int prot, int flags ); #ifdef __ASM_OBSOLETE struct dll_path_context { unsigned int index; /* current index in the dll path list */ char *buffer; /* buffer used for storing path names */ char *name; /* start of file name part in buffer (including leading slash) */ int namelen; /* length of file name without .so extension */ int win16; /* 16-bit dll search */ }; static const char *default_dlldir; static const char **dll_paths; static unsigned int nb_dll_paths; static int dll_path_maxlen; extern const char *build_dir; extern void wine_init_argv0_path_obsolete( const char *argv0 ); extern void mmap_init(void); extern const char *get_dlldir( const char **default_dlldir ); /* build the dll load path from the WINEDLLPATH variable */ static void build_dll_path(void) { int len, count = 0; char *p, *path = getenv( "WINEDLLPATH" ); const char *dlldir = get_dlldir( &default_dlldir ); if (path) { /* count how many path elements we need */ path = strdup(path); p = path; while (*p) { while (*p == ':') p++; if (!*p) break; count++; while (*p && *p != ':') p++; } } dll_paths = malloc( (count+2) * sizeof(*dll_paths) ); nb_dll_paths = 0; if (dlldir) { dll_path_maxlen = strlen(dlldir); dll_paths[nb_dll_paths++] = dlldir; } else if (build_dir) { dll_path_maxlen = strlen(build_dir) + sizeof("/programs"); } if (count) { p = path; while (*p) { while (*p == ':') *p++ = 0; if (!*p) break; dll_paths[nb_dll_paths] = p; while (*p && *p != ':') p++; if (p - dll_paths[nb_dll_paths] > dll_path_maxlen) dll_path_maxlen = p - dll_paths[nb_dll_paths]; nb_dll_paths++; } } /* append default dll dir (if not empty) to path */ if ((len = strlen(default_dlldir)) > 0) { if (len > dll_path_maxlen) dll_path_maxlen = len; dll_paths[nb_dll_paths++] = default_dlldir; } } static inline char *prepend( char *buffer, const char *str, size_t len ) { return memcpy( buffer - len, str, len ); } /* get a filename from the next entry in the dll path */ static char *next_dll_path( struct dll_path_context *context ) { unsigned int index = context->index++; int namelen = context->namelen; char *path = context->name; switch(index) { case 0: /* try dlls dir with subdir prefix */ if (namelen > 4 && !memcmp( context->name + namelen - 4, ".dll", 4 )) namelen -= 4; if (!context->win16) path = prepend( path, context->name, namelen ); path = prepend( path, "/dlls", sizeof("/dlls") - 1 ); path = prepend( path, build_dir, strlen(build_dir) ); return path; case 1: /* try programs dir with subdir prefix */ if (!context->win16) { if (namelen > 4 && !memcmp( context->name + namelen - 4, ".exe", 4 )) namelen -= 4; path = prepend( path, context->name, namelen ); path = prepend( path, "/programs", sizeof("/programs") - 1 ); path = prepend( path, build_dir, strlen(build_dir) ); return path; } context->index++; /* fall through */ default: index -= 2; if (index >= nb_dll_paths) return NULL; path = prepend( path, dll_paths[index], strlen( dll_paths[index] )); return path; } } /* get a filename from the first entry in the dll path */ static char *first_dll_path( const char *name, int win16, struct dll_path_context *context ) { char *p; int namelen = strlen( name ); const char *ext = win16 ? "16" : ".so"; context->buffer = malloc( dll_path_maxlen + 2 * namelen + strlen(ext) + 3 ); context->index = build_dir ? 0 : 2; /* if no build dir skip all the build dir magic cases */ context->name = context->buffer + dll_path_maxlen + namelen + 1; context->namelen = namelen + 1; context->win16 = win16; /* store the name at the end of the buffer, followed by extension */ p = context->name; *p++ = '/'; memcpy( p, name, namelen ); strcpy( p + namelen, ext ); return next_dll_path( context ); } /* free the dll path context created by first_dll_path */ static inline void free_dll_path( struct dll_path_context *context ) { free( context->buffer ); } #endif /* __ASM_OBSOLETE */ /* adjust an array of pointers to make them into RVAs */ static inline void fixup_rva_ptrs( void *array, BYTE *base, unsigned int count ) { void **src = (void **)array; DWORD *dst = (DWORD *)array; while (count--) { *dst++ = *src ? (BYTE *)*src - base : 0; src++; } } /* fixup an array of RVAs by adding the specified delta */ static inline void fixup_rva_dwords( DWORD *ptr, int delta, unsigned int count ) { while (count--) { if (*ptr) *ptr += delta; ptr++; } } /* fixup an array of name/ordinal RVAs by adding the specified delta */ static inline void fixup_rva_names( UINT_PTR *ptr, int delta ) { while (*ptr) { if (!(*ptr & IMAGE_ORDINAL_FLAG)) *ptr += delta; ptr++; } } /* fixup RVAs in the import directory */ static void fixup_imports( IMAGE_IMPORT_DESCRIPTOR *dir, BYTE *base, int delta ) { while (dir->Name) { fixup_rva_dwords( &dir->u.OriginalFirstThunk, delta, 1 ); fixup_rva_dwords( &dir->Name, delta, 1 ); fixup_rva_dwords( &dir->FirstThunk, delta, 1 ); if (dir->u.OriginalFirstThunk) fixup_rva_names( (UINT_PTR *)(base + dir->u.OriginalFirstThunk), delta ); if (dir->FirstThunk) fixup_rva_names( (UINT_PTR *)(base + dir->FirstThunk), delta ); dir++; } } /* fixup RVAs in the export directory */ static void fixup_exports( IMAGE_EXPORT_DIRECTORY *dir, BYTE *base, int delta ) { fixup_rva_dwords( &dir->Name, delta, 1 ); fixup_rva_dwords( &dir->AddressOfFunctions, delta, 1 ); fixup_rva_dwords( &dir->AddressOfNames, delta, 1 ); fixup_rva_dwords( &dir->AddressOfNameOrdinals, delta, 1 ); fixup_rva_dwords( (DWORD *)(base + dir->AddressOfNames), delta, dir->NumberOfNames ); fixup_rva_ptrs( (base + dir->AddressOfFunctions), base, dir->NumberOfFunctions ); } /* fixup RVAs in the resource directory */ static void fixup_resources( IMAGE_RESOURCE_DIRECTORY *dir, BYTE *root, int delta ) { IMAGE_RESOURCE_DIRECTORY_ENTRY *entry; int i; entry = (IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1); for (i = 0; i < dir->NumberOfNamedEntries + dir->NumberOfIdEntries; i++, entry++) { void *ptr = root + entry->u2.s2.OffsetToDirectory; if (entry->u2.s2.DataIsDirectory) fixup_resources( ptr, root, delta ); else { IMAGE_RESOURCE_DATA_ENTRY *data = ptr; fixup_rva_dwords( &data->OffsetToData, delta, 1 ); } } } /* map a builtin dll in memory and fixup RVAs */ static void *map_dll( const IMAGE_NT_HEADERS *nt_descr ) { IMAGE_DATA_DIRECTORY *dir; IMAGE_DOS_HEADER *dos; IMAGE_NT_HEADERS *nt; IMAGE_SECTION_HEADER *sec; BYTE *addr; DWORD code_start, code_end, data_start, data_end; const size_t page_size = sysconf( _SC_PAGESIZE ); const size_t page_mask = page_size - 1; int delta, nb_sections = 2; /* code + data */ unsigned int i; #ifdef __APPLE__ Dl_info dli; unsigned long data_size; #endif size_t size = (sizeof(IMAGE_DOS_HEADER) + sizeof(IMAGE_NT_HEADERS) + nb_sections * sizeof(IMAGE_SECTION_HEADER)); assert( size <= page_size ); /* module address must be aligned on 64K boundary */ addr = (BYTE *)((nt_descr->OptionalHeader.ImageBase + 0xffff) & ~0xffff); if (wine_anon_mmap( addr, page_size, PROT_READ|PROT_WRITE, MAP_FIXED ) != addr) return NULL; dos = (IMAGE_DOS_HEADER *)addr; nt = (IMAGE_NT_HEADERS *)(dos + 1); sec = (IMAGE_SECTION_HEADER *)(nt + 1); /* Build the DOS and NT headers */ dos->e_magic = IMAGE_DOS_SIGNATURE; dos->e_cblp = 0x90; dos->e_cp = 3; dos->e_cparhdr = (sizeof(*dos)+0xf)/0x10; dos->e_minalloc = 0; dos->e_maxalloc = 0xffff; dos->e_ss = 0x0000; dos->e_sp = 0x00b8; dos->e_lfarlc = sizeof(*dos); dos->e_lfanew = sizeof(*dos); *nt = *nt_descr; delta = (const BYTE *)nt_descr - addr; code_start = page_size; data_start = delta & ~page_mask; #ifdef __APPLE__ /* Need the mach_header, not the PE header, to give to getsegmentdata(3) */ dladdr(addr, &dli); code_end = getsegmentdata(dli.dli_fbase, "__DATA", &data_size) - addr; data_end = (code_end + data_size + page_mask) & ~page_mask; #else code_end = data_start; data_end = (nt->OptionalHeader.SizeOfImage + delta + page_mask) & ~page_mask; #endif fixup_rva_ptrs( &nt->OptionalHeader.AddressOfEntryPoint, addr, 1 ); nt->FileHeader.NumberOfSections = nb_sections; nt->OptionalHeader.BaseOfCode = code_start; #ifndef _WIN64 nt->OptionalHeader.BaseOfData = data_start; #endif nt->OptionalHeader.SizeOfCode = code_end - code_start; nt->OptionalHeader.SizeOfInitializedData = data_end - data_start; nt->OptionalHeader.SizeOfUninitializedData = 0; nt->OptionalHeader.SizeOfImage = data_end; nt->OptionalHeader.ImageBase = (ULONG_PTR)addr; /* Build the code section */ memcpy( sec->Name, ".text", sizeof(".text") ); sec->SizeOfRawData = code_end - code_start; sec->Misc.VirtualSize = sec->SizeOfRawData; sec->VirtualAddress = code_start; sec->PointerToRawData = code_start; sec->Characteristics = (IMAGE_SCN_CNT_CODE | IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ); sec++; /* Build the data section */ memcpy( sec->Name, ".data", sizeof(".data") ); sec->SizeOfRawData = data_end - data_start; sec->Misc.VirtualSize = sec->SizeOfRawData; sec->VirtualAddress = data_start; sec->PointerToRawData = data_start; sec->Characteristics = (IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_MEM_WRITE | IMAGE_SCN_MEM_READ); sec++; for (i = 0; i < nt->OptionalHeader.NumberOfRvaAndSizes; i++) fixup_rva_dwords( &nt->OptionalHeader.DataDirectory[i].VirtualAddress, delta, 1 ); /* Build the import directory */ dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_IMPORT_DIRECTORY]; if (dir->Size) { IMAGE_IMPORT_DESCRIPTOR *imports = (void *)(addr + dir->VirtualAddress); fixup_imports( imports, addr, delta ); } /* Build the resource directory */ dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_RESOURCE_DIRECTORY]; if (dir->Size) { void *ptr = (void *)(addr + dir->VirtualAddress); fixup_resources( ptr, ptr, delta ); } /* Build the export directory */ dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_EXPORT_DIRECTORY]; if (dir->Size) { IMAGE_EXPORT_DIRECTORY *exports = (void *)(addr + dir->VirtualAddress); fixup_exports( exports, addr, delta ); } return addr; } /*********************************************************************** * __wine_get_main_environment * * Return an environment pointer to work around lack of environ variable. * Only exported on Mac OS. */ char **__wine_get_main_environment(void) { return environ; } /*********************************************************************** * __wine_dll_register * * Register a built-in DLL descriptor. */ void __wine_dll_register( const IMAGE_NT_HEADERS *header, const char *filename ) { if (load_dll_callback) load_dll_callback( map_dll(header), filename ); else { if (!(header->FileHeader.Characteristics & IMAGE_FILE_DLL)) main_exe = header; else { assert( nb_dlls < MAX_DLLS ); builtin_dlls[nb_dlls].nt = header; builtin_dlls[nb_dlls].filename = filename; nb_dlls++; } } } /*********************************************************************** * wine_dll_set_callback * * Set the callback function for dll loading, and call it * for all dlls that were implicitly loaded already. */ void wine_dll_set_callback( load_dll_callback_t load ) { int i; load_dll_callback = load; for (i = 0; i < nb_dlls; i++) { const IMAGE_NT_HEADERS *nt = builtin_dlls[i].nt; if (!nt) continue; builtin_dlls[i].nt = NULL; load_dll_callback( map_dll(nt), builtin_dlls[i].filename ); } nb_dlls = 0; if (main_exe) load_dll_callback( map_dll(main_exe), "" ); } #ifdef __ASM_OBSOLETE /*********************************************************************** * wine_dll_enum_load_path * * Enumerate the dll load path. */ const char *wine_dll_enum_load_path_obsolete( unsigned int index ) { if (index >= nb_dll_paths) return NULL; return dll_paths[index]; } /* * These functions provide wrappers around dlopen() and associated * functions. They work around a bug in glibc 2.1.x where calling * a dl*() function after a previous dl*() function has failed * without a dlerror() call between the two will cause a crash. * They all take a pointer to a buffer that * will receive the error description (from dlerror()). This * parameter may be NULL if the error description is not required. */ #ifndef RTLD_FIRST #define RTLD_FIRST 0 #endif /*********************************************************************** * wine_dlopen */ void *wine_dlopen_obsolete( const char *filename, int flag, char *error, size_t errorsize ) { void *ret; const char *s; #ifdef __APPLE__ /* the Mac OS loader pretends to be able to load PE files, so avoid them here */ unsigned char magic[2]; int fd = open( filename, O_RDONLY ); if (fd != -1) { if (pread( fd, magic, 2, 0 ) == 2 && magic[0] == 'M' && magic[1] == 'Z') { if (error && errorsize) { static const char msg[] = "MZ format"; size_t len = min( errorsize, sizeof(msg) ); memcpy( error, msg, len ); error[len - 1] = 0; } close( fd ); return NULL; } close( fd ); } #endif dlerror(); dlerror(); #ifdef __sun if (strchr( filename, ':' )) { char path[PATH_MAX]; /* Solaris' brain damaged dlopen() treats ':' as a path separator */ realpath( filename, path ); ret = dlopen( path, flag | RTLD_FIRST ); } else #endif ret = dlopen( filename, flag | RTLD_FIRST ); s = dlerror(); if (error && errorsize) { if (s) { size_t len = strlen(s); if (len >= errorsize) len = errorsize - 1; memcpy( error, s, len ); error[len] = 0; } else error[0] = 0; } dlerror(); return ret; } /*********************************************************************** * wine_dlsym */ void *wine_dlsym_obsolete( void *handle, const char *symbol, char *error, size_t errorsize ) { void *ret; const char *s; dlerror(); dlerror(); ret = dlsym( handle, symbol ); s = dlerror(); if (error && errorsize) { if (s) { size_t len = strlen(s); if (len >= errorsize) len = errorsize - 1; memcpy( error, s, len ); error[len] = 0; } else error[0] = 0; } dlerror(); return ret; } /*********************************************************************** * wine_dlclose */ int wine_dlclose_obsolete( void *handle, char *error, size_t errorsize ) { int ret; const char *s; dlerror(); dlerror(); ret = dlclose( handle ); s = dlerror(); if (error && errorsize) { if (s) { size_t len = strlen(s); if (len >= errorsize) len = errorsize - 1; memcpy( error, s, len ); error[len] = 0; } else error[0] = 0; } dlerror(); return ret; } /* check if the library is the correct architecture */ /* only returns false for a valid library of the wrong arch */ static int check_library_arch( int fd ) { #ifdef __APPLE__ struct /* Mach-O header */ { unsigned int magic; unsigned int cputype; } header; if (read( fd, &header, sizeof(header) ) != sizeof(header)) return 1; if (header.magic != 0xfeedface) return 1; if (sizeof(void *) == sizeof(int)) return !(header.cputype >> 24); else return (header.cputype >> 24) == 1; /* CPU_ARCH_ABI64 */ #else struct /* ELF header */ { unsigned char magic[4]; unsigned char class; unsigned char data; unsigned char version; } header; if (read( fd, &header, sizeof(header) ) != sizeof(header)) return 1; if (memcmp( header.magic, "\177ELF", 4 )) return 1; if (header.version != 1 /* EV_CURRENT */) return 1; #ifdef WORDS_BIGENDIAN if (header.data != 2 /* ELFDATA2MSB */) return 1; #else if (header.data != 1 /* ELFDATA2LSB */) return 1; #endif if (sizeof(void *) == sizeof(int)) return header.class == 1; /* ELFCLASS32 */ else return header.class == 2; /* ELFCLASS64 */ #endif } /* check if a given file can be opened */ static int file_exists( const char *name ) { int ret = 0; int fd = open( name, O_RDONLY ); if (fd != -1) { ret = check_library_arch( fd ); close( fd ); } return ret; } /* open a library for a given dll, searching in the dll path * 'name' must be the Windows dll name (e.g. "kernel32.dll") */ static void *dlopen_dll( const char *name, char *error, int errorsize, int test_only, int *exists ) { struct dll_path_context context; char *path; void *ret = NULL; *exists = 0; for (path = first_dll_path( name, 0, &context ); path; path = next_dll_path( &context )) { if (!test_only && (ret = wine_dlopen_obsolete( path, RTLD_NOW, error, errorsize ))) break; if ((*exists = file_exists( path ))) break; /* exists but cannot be loaded, return the error */ } free_dll_path( &context ); return ret; } /*********************************************************************** * wine_dll_load * * Load a builtin dll. */ void *wine_dll_load_obsolete( const char *filename, char *error, int errorsize, int *file_exists ) { int i; /* callback must have been set already */ assert( load_dll_callback ); /* check if we have it in the list */ /* this can happen when initializing pre-loaded dlls in wine_dll_set_callback */ for (i = 0; i < nb_dlls; i++) { if (!builtin_dlls[i].nt) continue; if (!strcmp( builtin_dlls[i].filename, filename )) { const IMAGE_NT_HEADERS *nt = builtin_dlls[i].nt; builtin_dlls[i].nt = NULL; load_dll_callback( map_dll(nt), builtin_dlls[i].filename ); *file_exists = 1; return (void *)1; } } return dlopen_dll( filename, error, errorsize, 0, file_exists ); } /*********************************************************************** * wine_dll_unload * * Unload a builtin dll. */ void wine_dll_unload_obsolete( void *handle ) { if (handle != (void *)1) wine_dlclose_obsolete( handle, NULL, 0 ); } /*********************************************************************** * wine_dll_load_main_exe * * Try to load the .so for the main exe. */ void *wine_dll_load_main_exe_obsolete( const char *name, char *error, int errorsize, int test_only, int *file_exists ) { return dlopen_dll( name, error, errorsize, test_only, file_exists ); } /*********************************************************************** * wine_dll_get_owner * * Retrieve the name of the 32-bit owner dll for a 16-bit dll. * Return 0 if OK, -1 on error. */ int wine_dll_get_owner_obsolete( const char *name, char *buffer, int size, int *exists ) { int ret = -1; char *path; struct dll_path_context context; *exists = 0; for (path = first_dll_path( name, 1, &context ); path; path = next_dll_path( &context )) { int fd = open( path, O_RDONLY ); if (fd != -1) { int res = read( fd, buffer, size - 1 ); while (res > 0 && (buffer[res-1] == '\n' || buffer[res-1] == '\r')) res--; buffer[res] = 0; close( fd ); *exists = 1; ret = 0; break; } } free_dll_path( &context ); return ret; } /*********************************************************************** * set_max_limit * * Set a user limit to the maximum allowed value. */ static void set_max_limit( int limit ) { struct rlimit rlimit; if (!getrlimit( limit, &rlimit )) { rlimit.rlim_cur = rlimit.rlim_max; if (setrlimit( limit, &rlimit ) != 0) { #if defined(__APPLE__) && defined(RLIMIT_NOFILE) && defined(OPEN_MAX) /* On Leopard, setrlimit(RLIMIT_NOFILE, ...) fails on attempts to set * rlim_cur above OPEN_MAX (even if rlim_max > OPEN_MAX). */ if (limit == RLIMIT_NOFILE && rlimit.rlim_cur > OPEN_MAX) { rlimit.rlim_cur = OPEN_MAX; setrlimit( limit, &rlimit ); } #endif } } } #ifdef __APPLE__ struct apple_stack_info { void *stack; size_t desired_size; }; /*********************************************************************** * apple_alloc_thread_stack * * Callback for wine_mmap_enum_reserved_areas to allocate space for * the secondary thread's stack. */ #ifndef _WIN64 static int apple_alloc_thread_stack( void *base, size_t size, void *arg ) { struct apple_stack_info *info = arg; /* For mysterious reasons, putting the thread stack at the very top * of the address space causes subsequent execs to fail, even on the * child side of a fork. Avoid the top 16MB. */ char * const limit = (char*)0xff000000; if ((char *)base >= limit) return 0; if (size > limit - (char*)base) size = limit - (char*)base; if (size < info->desired_size) return 0; info->stack = wine_anon_mmap( (char *)base + size - info->desired_size, info->desired_size, PROT_READ|PROT_WRITE, MAP_FIXED ); return (info->stack != (void *)-1); } #endif /*********************************************************************** * apple_create_wine_thread * * Spin off a secondary thread to complete Wine initialization, leaving * the original thread for the Mac frameworks. * * Invoked as a CFRunLoopSource perform callback. */ static void apple_create_wine_thread( void *init_func ) { int success = 0; pthread_t thread; pthread_attr_t attr; if (!pthread_attr_init( &attr )) { #ifndef _WIN64 struct apple_stack_info info; /* Try to put the new thread's stack in the reserved area. If this * fails, just let it go wherever. It'll be a waste of space, but we * can go on. */ if (!pthread_attr_getstacksize( &attr, &info.desired_size ) && wine_mmap_enum_reserved_areas_obsolete( apple_alloc_thread_stack, &info, 1 )) { wine_mmap_remove_reserved_area_obsolete( info.stack, info.desired_size, 0 ); pthread_attr_setstackaddr( &attr, (char*)info.stack + info.desired_size ); } #endif if (!pthread_attr_setdetachstate( &attr, PTHREAD_CREATE_JOINABLE ) && !pthread_create( &thread, &attr, init_func, NULL )) success = 1; pthread_attr_destroy( &attr ); } /* Failure is indicated by returning from wine_init(). Stopping * the run loop allows apple_main_thread() and thus wine_init() to * return. */ if (!success) CFRunLoopStop( CFRunLoopGetCurrent() ); } /*********************************************************************** * apple_main_thread * * Park the process's original thread in a Core Foundation run loop for * use by the Mac frameworks, especially receiving and handling * distributed notifications. Spin off a new thread for the rest of the * Wine initialization. */ static void apple_main_thread( void (*init_func)(void) ) { CFRunLoopSourceContext source_context = { 0 }; CFRunLoopSourceRef source; if (!pthread_main_np()) { init_func(); return; } /* Multi-processing Services can get confused about the main thread if the * first time it's used is on a secondary thread. Use it here to make sure * that doesn't happen. */ MPTaskIsPreemptive(MPCurrentTaskID()); /* Give ourselves the best chance of having the distributed notification * center scheduled on this thread's run loop. In theory, it's scheduled * in the first thread to ask for it. */ CFNotificationCenterGetDistributedCenter(); /* We use this run loop source for two purposes. First, a run loop exits * if it has no more sources scheduled. So, we need at least one source * to keep the run loop running. Second, although it's not critical, it's * preferable for the Wine initialization to not proceed until we know * the run loop is running. So, we signal our source immediately after * adding it and have its callback spin off the Wine thread. */ source_context.info = init_func; source_context.perform = apple_create_wine_thread; source = CFRunLoopSourceCreate( NULL, 0, &source_context ); if (source) { CFRunLoopAddSource( CFRunLoopGetCurrent(), source, kCFRunLoopCommonModes ); CFRunLoopSourceSignal( source ); CFRelease( source ); CFRunLoopRun(); /* Should never return, except on error. */ } /* If we get here (i.e. return), that indicates failure to our caller. */ } #endif /*********************************************************************** * wine_init * * Main Wine initialisation. */ void wine_init_obsolete( int argc, char *argv[], char *error, int error_size ) { struct dll_path_context context; char *path; void *ntdll = NULL; void (*init_func)(void); /* force a few limits that are set too low on some platforms */ #ifdef RLIMIT_NOFILE set_max_limit( RLIMIT_NOFILE ); #endif #ifdef RLIMIT_AS set_max_limit( RLIMIT_AS ); #endif wine_init_argv0_path_obsolete( argv[0] ); build_dll_path(); __wine_main_argc = argc; __wine_main_argv = argv; __wine_main_environ = __wine_get_main_environment(); mmap_init(); for (path = first_dll_path( "ntdll.dll", 0, &context ); path; path = next_dll_path( &context )) { if ((ntdll = dlopen( path, RTLD_NOW ))) { /* if we didn't use the default dll dir, remove it from the search path */ if (default_dlldir[0] && context.index < nb_dll_paths + 2) nb_dll_paths--; break; } } free_dll_path( &context ); if (!ntdll || !(init_func = dlsym( ntdll, "__wine_process_init" ))) { if (error && error_size) { const char *s = dlerror(); if (s) { size_t len = min( strlen(s), error_size - 1 ); memcpy( error, s, len ); error[len] = 0; } else error[0] = 0; } return; } #ifdef __APPLE__ apple_main_thread( init_func ); #else init_func(); #endif } __ASM_OBSOLETE(wine_dlopen); __ASM_OBSOLETE(wine_dlsym); __ASM_OBSOLETE(wine_dlclose); __ASM_OBSOLETE(wine_dll_enum_load_path); __ASM_OBSOLETE(wine_dll_get_owner); __ASM_OBSOLETE(wine_dll_load); __ASM_OBSOLETE(wine_dll_load_main_exe); __ASM_OBSOLETE(wine_dll_unload); __ASM_OBSOLETE(wine_init); #endif /* __ASM_OBSOLETE */