/* * Unix interface for loader functions * * Copyright (C) 2020 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 */ #if 0 #pragma makedep unix #endif #include "config.h" #include "wine/port.h" #include #include #include #include #include #ifdef HAVE_LINK_H # include #endif #ifdef HAVE_PWD_H # include #endif #ifdef HAVE_ELF_H # include #endif #ifdef HAVE_LINK_H # include #endif #ifdef HAVE_SYS_AUXV_H # include #endif #ifdef HAVE_SYS_MMAN_H # include #endif #ifdef HAVE_SYS_RESOURCE_H # include #endif #ifdef HAVE_SYS_UTSNAME_H #include #endif #ifdef HAVE_SYS_WAIT_H #include #endif #ifdef __APPLE__ # include # define LoadResource MacLoadResource # define GetCurrentThread MacGetCurrentThread # include # undef LoadResource # undef GetCurrentThread # include # include # include # include # include # include # ifndef _POSIX_SPAWN_DISABLE_ASLR # define _POSIX_SPAWN_DISABLE_ASLR 0x0100 # endif #endif #include "ntstatus.h" #define WIN32_NO_STATUS #define NONAMELESSUNION #define NONAMELESSSTRUCT #include "windef.h" #include "winnt.h" #include "winbase.h" #include "winnls.h" #include "winioctl.h" #include "winternl.h" #include "unix_private.h" #include "wine/list.h" #include "wine/library.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(module); extern IMAGE_NT_HEADERS __wine_spec_nt_header; void (WINAPI *pDbgUiRemoteBreakin)( void *arg ) = NULL; NTSTATUS (WINAPI *pKiUserExceptionDispatcher)(EXCEPTION_RECORD*,CONTEXT*) = NULL; void (WINAPI *pLdrInitializeThunk)(CONTEXT*,void**,ULONG_PTR,ULONG_PTR) = NULL; void (WINAPI *pRtlUserThreadStart)( PRTL_THREAD_START_ROUTINE entry, void *arg ) = NULL; static void (CDECL *p__wine_set_unix_funcs)( int version, const struct unix_funcs *funcs ); #ifdef __GNUC__ static void fatal_error( const char *err, ... ) __attribute__((noreturn, format(printf,1,2))); #endif #if defined(linux) || defined(__APPLE__) static const BOOL use_preloader = TRUE; #else static const BOOL use_preloader = FALSE; #endif static const BOOL is_win64 = (sizeof(void *) > sizeof(int)); static char *argv0; static const char *bin_dir; static const char *dll_dir; static SIZE_T dll_path_maxlen; const char *home_dir = NULL; const char *data_dir = NULL; const char *build_dir = NULL; const char *config_dir = NULL; const char **dll_paths = NULL; const char *user_name = NULL; static HMODULE ntdll_module; struct file_id { BYTE ObjectId[16]; }; struct builtin_module { struct list entry; struct file_id id; void *handle; void *module; }; static struct list builtin_modules = LIST_INIT( builtin_modules ); static NTSTATUS add_builtin_module( void *module, void *handle, const FILE_OBJECTID_BUFFER *id ) { struct builtin_module *builtin; if (!(builtin = malloc( sizeof(*builtin) ))) return STATUS_NO_MEMORY; builtin->handle = handle; builtin->module = module; if (id) memcpy( &builtin->id, id->ObjectId, sizeof(builtin->id) ); else memset( &builtin->id, 0, sizeof(builtin->id) ); list_add_tail( &builtin_modules, &builtin->entry ); return STATUS_SUCCESS; } static inline void *get_rva( const IMAGE_NT_HEADERS *nt, ULONG_PTR addr ) { return (BYTE *)nt + addr; } /* adjust an array of pointers to make them into RVAs */ static inline void fixup_rva_ptrs( void *array, BYTE *base, unsigned int count ) { BYTE **src = array; DWORD *dst = array; for ( ; count; count--, src++, dst++) *dst = *src ? *src - base : 0; } /* fixup an array of RVAs by adding the specified delta */ static inline void fixup_rva_dwords( DWORD *ptr, int delta, unsigned int count ) { for ( ; count; count--, ptr++) if (*ptr) *ptr += delta; } /* fixup an array of name/ordinal RVAs by adding the specified delta */ static inline void fixup_rva_names( UINT_PTR *ptr, int delta ) { for ( ; *ptr; ptr++) if (!(*ptr & IMAGE_ORDINAL_FLAG)) *ptr += delta; } /* fixup RVAs in the resource directory */ static void fixup_so_resources( IMAGE_RESOURCE_DIRECTORY *dir, BYTE *root, int delta ) { IMAGE_RESOURCE_DIRECTORY_ENTRY *entry = (IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1); unsigned int i; for (i = 0; i < dir->NumberOfNamedEntries + dir->NumberOfIdEntries; i++, entry++) { void *ptr = root + entry->u2.s2.OffsetToDirectory; if (entry->u2.s2.DataIsDirectory) fixup_so_resources( ptr, root, delta ); else fixup_rva_dwords( &((IMAGE_RESOURCE_DATA_ENTRY *)ptr)->OffsetToData, delta, 1 ); } } /* die on a fatal error; use only during initialization */ static void fatal_error( const char *err, ... ) { va_list args; va_start( args, err ); fprintf( stderr, "wine: " ); vfprintf( stderr, err, args ); va_end( args ); exit(1); } static void set_max_limit( int limit ) { struct rlimit rlimit; if (!getrlimit( limit, &rlimit )) { rlimit.rlim_cur = rlimit.rlim_max; setrlimit( limit, &rlimit ); } } /* canonicalize path and return its directory name */ static char *realpath_dirname( const char *name ) { char *p, *fullpath = realpath( name, NULL ); if (fullpath) { p = strrchr( fullpath, '/' ); if (p == fullpath) p++; if (p) *p = 0; } return fullpath; } /* if string ends with tail, remove it */ static char *remove_tail( const char *str, const char *tail ) { size_t len = strlen( str ); size_t tail_len = strlen( tail ); char *ret; if (len < tail_len) return NULL; if (strcmp( str + len - tail_len, tail )) return NULL; ret = malloc( len - tail_len + 1 ); memcpy( ret, str, len - tail_len ); ret[len - tail_len] = 0; return ret; } /* build a path from the specified dir and name */ static char *build_path( const char *dir, const char *name ) { size_t len = strlen( dir ); char *ret = malloc( len + strlen( name ) + 2 ); memcpy( ret, dir, len ); if (len && ret[len - 1] != '/') ret[len++] = '/'; strcpy( ret + len, name ); return ret; } static void set_dll_path(void) { char *p, *path = getenv( "WINEDLLPATH" ); int i, count = 0; if (path) for (p = path, count = 1; *p; p++) if (*p == ':') count++; dll_paths = malloc( (count + 2) * sizeof(*dll_paths) ); count = 0; if (!build_dir) dll_paths[count++] = dll_dir; if (path) { path = strdup(path); for (p = strtok( path, ":" ); p; p = strtok( NULL, ":" )) dll_paths[count++] = strdup( p ); free( path ); } for (i = 0; i < count; i++) dll_path_maxlen = max( dll_path_maxlen, strlen(dll_paths[i]) ); dll_paths[count] = NULL; } static void set_home_dir(void) { const char *home = getenv( "HOME" ); const char *name = getenv( "USER" ); const char *p; if (!home || !name) { struct passwd *pwd = getpwuid( getuid() ); if (pwd) { if (!home) home = pwd->pw_dir; if (!name) name = pwd->pw_name; } if (!name) name = "wine"; } if ((p = strrchr( name, '/' ))) name = p + 1; if ((p = strrchr( name, '\\' ))) name = p + 1; home_dir = strdup( home ); user_name = strdup( name ); } static void set_config_dir(void) { char *p, *dir; const char *prefix = getenv( "WINEPREFIX" ); if (prefix) { if (prefix[0] != '/') fatal_error( "invalid directory %s in WINEPREFIX: not an absolute path\n", prefix ); config_dir = dir = strdup( prefix ); for (p = dir + strlen(dir) - 1; p > dir && *p == '/'; p--) *p = 0; } else { if (!home_dir) fatal_error( "could not determine your home directory\n" ); if (home_dir[0] != '/') fatal_error( "the home directory %s is not an absolute path\n", home_dir ); config_dir = build_path( home_dir, ".wine" ); } } static void init_paths( int argc, char *argv[], char *envp[] ) { Dl_info info; argv0 = strdup( argv[0] ); if (!dladdr( init_paths, &info ) || !(dll_dir = realpath_dirname( info.dli_fname ))) fatal_error( "cannot get path to ntdll.so\n" ); if (!(build_dir = remove_tail( dll_dir, "/dlls/ntdll" ))) { #if defined(__linux__) || defined(__FreeBSD_kernel__) || defined(__NetBSD__) bin_dir = realpath_dirname( "/proc/self/exe" ); #elif defined (__FreeBSD__) || defined(__DragonFly__) bin_dir = realpath_dirname( "/proc/curproc/file" ); #else bin_dir = realpath_dirname( argv0 ); #endif if (!bin_dir) bin_dir = build_path( dll_dir, DLL_TO_BINDIR ); data_dir = build_path( bin_dir, BIN_TO_DATADIR ); } set_dll_path(); set_home_dir(); set_config_dir(); } /********************************************************************* * get_version */ const char * CDECL get_version(void) { return PACKAGE_VERSION; } /********************************************************************* * get_build_id */ const char * CDECL get_build_id(void) { extern const char wine_build[]; return wine_build; } /********************************************************************* * get_host_version */ void CDECL get_host_version( const char **sysname, const char **release ) { #ifdef HAVE_SYS_UTSNAME_H static struct utsname buf; static BOOL init_done; if (!init_done) { uname( &buf ); init_done = TRUE; } if (sysname) *sysname = buf.sysname; if (release) *release = buf.release; #else if (sysname) *sysname = ""; if (release) *release = ""; #endif } static void preloader_exec( char **argv ) { if (use_preloader) { static const char *preloader = "wine-preloader"; char *p; if (!(p = strrchr( argv[1], '/' ))) p = argv[1]; else p++; if (strlen(p) > 2 && !strcmp( p + strlen(p) - 2, "64" )) preloader = "wine64-preloader"; argv[0] = malloc( p - argv[1] + strlen(preloader) + 1 ); memcpy( argv[0], argv[1], p - argv[1] ); strcpy( argv[0] + (p - argv[1]), preloader ); #ifdef __APPLE__ { posix_spawnattr_t attr; posix_spawnattr_init( &attr ); posix_spawnattr_setflags( &attr, POSIX_SPAWN_SETEXEC | _POSIX_SPAWN_DISABLE_ASLR ); posix_spawn( NULL, argv[0], NULL, &attr, argv, *_NSGetEnviron() ); posix_spawnattr_destroy( &attr ); } #endif execv( argv[0], argv ); free( argv[0] ); } execv( argv[1], argv + 1 ); } static NTSTATUS loader_exec( const char *loader, char **argv, client_cpu_t cpu ) { char *p, *path; if (build_dir) { argv[1] = build_path( build_dir, (cpu == CPU_x86_64) ? "loader/wine64" : "loader/wine" ); preloader_exec( argv ); return STATUS_INVALID_IMAGE_FORMAT; } if ((p = strrchr( loader, '/' ))) loader = p + 1; argv[1] = build_path( bin_dir, loader ); preloader_exec( argv ); argv[1] = getenv( "WINELOADER" ); if (argv[1]) preloader_exec( argv ); if ((path = getenv( "PATH" ))) { for (p = strtok( strdup( path ), ":" ); p; p = strtok( NULL, ":" )) { argv[1] = build_path( p, loader ); preloader_exec( argv ); } } argv[1] = build_path( BINDIR, loader ); preloader_exec( argv ); return STATUS_INVALID_IMAGE_FORMAT; } /*********************************************************************** * exec_wineloader * * argv[0] and argv[1] must be reserved for the preloader and loader respectively. */ NTSTATUS exec_wineloader( char **argv, int socketfd, const pe_image_info_t *pe_info ) { int is_child_64bit = (pe_info->cpu == CPU_x86_64 || pe_info->cpu == CPU_ARM64); ULONGLONG res_start = pe_info->base; ULONGLONG res_end = pe_info->base + pe_info->map_size; const char *loader = argv0; const char *loader_env = getenv( "WINELOADER" ); char preloader_reserve[64], socket_env[64]; if (!is_win64 ^ !is_child_64bit) { /* remap WINELOADER to the alternate 32/64-bit version if necessary */ if (loader_env) { int len = strlen( loader_env ); char *env = malloc( sizeof("WINELOADER=") + len + 2 ); if (!env) return STATUS_NO_MEMORY; strcpy( env, "WINELOADER=" ); strcat( env, loader_env ); if (is_child_64bit) { strcat( env, "64" ); } else { len += sizeof("WINELOADER=") - 1; if (!strcmp( env + len - 2, "64" )) env[len - 2] = 0; } loader = env; putenv( env ); } else loader = is_child_64bit ? "wine64" : "wine"; } signal( SIGPIPE, SIG_DFL ); sprintf( socket_env, "WINESERVERSOCKET=%u", socketfd ); sprintf( preloader_reserve, "WINEPRELOADRESERVE=%x%08x-%x%08x", (ULONG)(res_start >> 32), (ULONG)res_start, (ULONG)(res_end >> 32), (ULONG)res_end ); putenv( preloader_reserve ); putenv( socket_env ); return loader_exec( loader, argv, pe_info->cpu ); } /*********************************************************************** * exec_wineserver * * Exec a new wine server. */ static void exec_wineserver( char **argv ) { char *path; if (build_dir) { if (!is_win64) /* look for 64-bit server */ { char *loader = realpath_dirname( build_path( build_dir, "loader/wine64" )); if (loader) { argv[0] = build_path( loader, "../server/wineserver" ); execv( argv[0], argv ); } } argv[0] = build_path( build_dir, "server/wineserver" ); execv( argv[0], argv ); return; } argv[0] = build_path( bin_dir, "wineserver" ); execv( argv[0], argv ); argv[0] = getenv( "WINESERVER" ); if (argv[0]) execv( argv[0], argv ); if ((path = getenv( "PATH" ))) { for (path = strtok( strdup( path ), ":" ); path; path = strtok( NULL, ":" )) { argv[0] = build_path( path, "wineserver" ); execvp( argv[0], argv ); } } argv[0] = build_path( BINDIR, "wineserver" ); execv( argv[0], argv ); } /*********************************************************************** * start_server * * Start a new wine server. */ void start_server( BOOL debug ) { static BOOL started; /* we only try once */ char *argv[3]; static char debug_flag[] = "-d"; if (!started) { int status; int pid = fork(); if (pid == -1) fatal_error( "fork: %s", strerror(errno) ); if (!pid) { argv[1] = debug ? debug_flag : NULL; argv[2] = NULL; exec_wineserver( argv ); fatal_error( "could not exec wineserver\n" ); } waitpid( pid, &status, 0 ); status = WIFEXITED(status) ? WEXITSTATUS(status) : 1; if (status == 2) return; /* server lock held by someone else, will retry later */ if (status) exit(status); /* server failed */ started = TRUE; } } /************************************************************************* * map_so_dll * * Map a builtin dll in memory and fixup RVAs. */ static NTSTATUS map_so_dll( const IMAGE_NT_HEADERS *nt_descr, HMODULE module ) { static const char builtin_signature[32] = "Wine builtin DLL"; IMAGE_DATA_DIRECTORY *dir; IMAGE_DOS_HEADER *dos; IMAGE_NT_HEADERS *nt; IMAGE_SECTION_HEADER *sec; BYTE *addr = (BYTE *)module; DWORD code_start, code_end, data_start, data_end, align_mask; int delta, nb_sections = 2; /* code + data */ unsigned int i; DWORD size = (sizeof(IMAGE_DOS_HEADER) + sizeof(builtin_signature) + sizeof(IMAGE_NT_HEADERS) + nb_sections * sizeof(IMAGE_SECTION_HEADER)); if (wine_anon_mmap( addr, size, PROT_READ | PROT_WRITE, MAP_FIXED ) != addr) return STATUS_NO_MEMORY; dos = (IMAGE_DOS_HEADER *)addr; nt = (IMAGE_NT_HEADERS *)((BYTE *)(dos + 1) + sizeof(builtin_signature)); 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_lfanew = sizeof(*dos) + sizeof(builtin_signature); *nt = *nt_descr; delta = (const BYTE *)nt_descr - addr; align_mask = nt->OptionalHeader.SectionAlignment - 1; code_start = (size + align_mask) & ~align_mask; data_start = delta & ~align_mask; #ifdef __APPLE__ { Dl_info dli; unsigned long data_size; /* 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 + align_mask) & ~align_mask; } #else code_end = data_start; data_end = (nt->OptionalHeader.SizeOfImage + delta + align_mask) & ~align_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 = (IMAGE_IMPORT_DESCRIPTOR *)(addr + dir->VirtualAddress); while (imports->Name) { fixup_rva_dwords( &imports->u.OriginalFirstThunk, delta, 1 ); fixup_rva_dwords( &imports->Name, delta, 1 ); fixup_rva_dwords( &imports->FirstThunk, delta, 1 ); if (imports->u.OriginalFirstThunk) fixup_rva_names( (UINT_PTR *)(addr + imports->u.OriginalFirstThunk), delta ); if (imports->FirstThunk) fixup_rva_names( (UINT_PTR *)(addr + imports->FirstThunk), delta ); imports++; } } /* build the resource directory */ dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_RESOURCE_DIRECTORY]; if (dir->Size) { void *ptr = addr + dir->VirtualAddress; fixup_so_resources( ptr, ptr, delta ); } /* build the export directory */ dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_EXPORT_DIRECTORY]; if (dir->Size) { IMAGE_EXPORT_DIRECTORY *exports = (IMAGE_EXPORT_DIRECTORY *)(addr + dir->VirtualAddress); fixup_rva_dwords( &exports->Name, delta, 1 ); fixup_rva_dwords( &exports->AddressOfFunctions, delta, 1 ); fixup_rva_dwords( &exports->AddressOfNames, delta, 1 ); fixup_rva_dwords( &exports->AddressOfNameOrdinals, delta, 1 ); fixup_rva_dwords( (DWORD *)(addr + exports->AddressOfNames), delta, exports->NumberOfNames ); fixup_rva_ptrs( addr + exports->AddressOfFunctions, addr, exports->NumberOfFunctions ); } return STATUS_SUCCESS; } static const IMAGE_EXPORT_DIRECTORY *get_export_dir( HMODULE module ) { const IMAGE_DOS_HEADER *dos = (const IMAGE_DOS_HEADER *)module; const IMAGE_NT_HEADERS *nt; DWORD addr; if (dos->e_magic != IMAGE_DOS_SIGNATURE) return NULL; nt = (IMAGE_NT_HEADERS *)((const BYTE *)dos + dos->e_lfanew); if (nt->Signature != IMAGE_NT_SIGNATURE) return NULL; addr = nt->OptionalHeader.DataDirectory[IMAGE_FILE_EXPORT_DIRECTORY].VirtualAddress; if (!addr) return NULL; return (IMAGE_EXPORT_DIRECTORY *)((BYTE *)module + addr); } static ULONG_PTR find_ordinal_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports, DWORD ordinal ) { const DWORD *functions = (const DWORD *)((BYTE *)module + exports->AddressOfFunctions); if (ordinal >= exports->NumberOfFunctions) return 0; if (!functions[ordinal]) return 0; return (ULONG_PTR)module + functions[ordinal]; } static ULONG_PTR find_named_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports, const char *name ) { const WORD *ordinals = (const WORD *)((BYTE *)module + exports->AddressOfNameOrdinals); const DWORD *names = (const DWORD *)((BYTE *)module + exports->AddressOfNames); int min = 0, max = exports->NumberOfNames - 1; while (min <= max) { int res, pos = (min + max) / 2; char *ename = (char *)module + names[pos]; if (!(res = strcmp( ename, name ))) return find_ordinal_export( module, exports, ordinals[pos] ); if (res > 0) max = pos - 1; else min = pos + 1; } return 0; } static ULONG_PTR find_pe_export( HMODULE module, const IMAGE_EXPORT_DIRECTORY *exports, const IMAGE_IMPORT_BY_NAME *name ) { const WORD *ordinals = (const WORD *)((BYTE *)module + exports->AddressOfNameOrdinals); const DWORD *names = (const DWORD *)((BYTE *)module + exports->AddressOfNames); if (name->Hint < exports->NumberOfNames) { char *ename = (char *)module + names[name->Hint]; if (!strcmp( ename, (char *)name->Name )) return find_ordinal_export( module, exports, ordinals[name->Hint] ); } return find_named_export( module, exports, (char *)name->Name ); } static void fixup_ntdll_imports( const IMAGE_NT_HEADERS *nt ) { const IMAGE_EXPORT_DIRECTORY *ntdll_exports = get_export_dir( ntdll_module ); const IMAGE_IMPORT_DESCRIPTOR *descr; const IMAGE_THUNK_DATA *import_list; IMAGE_THUNK_DATA *thunk_list; void **ptr; assert( ntdll_exports ); descr = get_rva( nt, nt->OptionalHeader.DataDirectory[IMAGE_FILE_IMPORT_DIRECTORY].VirtualAddress ); /* ntdll must be the only import */ assert( !strcmp( get_rva( nt, descr->Name ), "ntdll.dll" )); assert( !descr[1].Name ); thunk_list = get_rva( nt, (DWORD)descr->FirstThunk ); if (descr->u.OriginalFirstThunk) import_list = get_rva( nt, (DWORD)descr->u.OriginalFirstThunk ); else import_list = thunk_list; while (import_list->u1.Ordinal) { if (IMAGE_SNAP_BY_ORDINAL( import_list->u1.Ordinal )) { int ordinal = IMAGE_ORDINAL( import_list->u1.Ordinal ) - ntdll_exports->Base; thunk_list->u1.Function = find_ordinal_export( ntdll_module, ntdll_exports, ordinal ); if (!thunk_list->u1.Function) ERR( "ordinal %u not found\n", ordinal ); } else /* import by name */ { IMAGE_IMPORT_BY_NAME *pe_name = get_rva( nt, import_list->u1.AddressOfData ); thunk_list->u1.Function = find_pe_export( ntdll_module, ntdll_exports, pe_name ); if (!thunk_list->u1.Function) ERR( "%s not found\n", pe_name->Name ); } import_list++; thunk_list++; } #define GET_FUNC(name) \ if (!(p##name = (void *)find_named_export( ntdll_module, ntdll_exports, #name ))) \ ERR( "%s not found\n", #name ) GET_FUNC( DbgUiRemoteBreakin ); GET_FUNC( KiUserExceptionDispatcher ); GET_FUNC( LdrInitializeThunk ); GET_FUNC( RtlUserThreadStart ); GET_FUNC( __wine_set_unix_funcs ); #undef GET_FUNC #define SET_PTR(name,val) \ if ((ptr = (void *)find_named_export( ntdll_module, ntdll_exports, #name ))) *ptr = val; \ else ERR( "%s not found\n", #name ) SET_PTR( __wine_syscall_dispatcher, __wine_syscall_dispatcher ); #ifdef __i386__ SET_PTR( __wine_ldt_copy, &__wine_ldt_copy ); #endif #undef SET_PTR } static void *callback_module; /*********************************************************************** * load_builtin_callback * * Load a library in memory; callback function for wine_dll_register */ static void load_builtin_callback( void *module, const char *filename ) { callback_module = module; } /*********************************************************************** * dlopen_dll */ static NTSTATUS dlopen_dll( const char *so_name, void **ret_module ) { struct builtin_module *builtin; void *module, *handle; const IMAGE_NT_HEADERS *nt; callback_module = (void *)1; handle = dlopen( so_name, RTLD_NOW ); if (!handle) { WARN( "failed to load .so lib %s: %s\n", debugstr_a(so_name), dlerror() ); return STATUS_INVALID_IMAGE_FORMAT; } if (callback_module != (void *)1) /* callback was called */ { if (!callback_module) return STATUS_NO_MEMORY; WARN( "got old-style builtin library %s, constructors won't work\n", debugstr_a(so_name) ); module = callback_module; LIST_FOR_EACH_ENTRY( builtin, &builtin_modules, struct builtin_module, entry ) if (builtin->module == module) goto already_loaded; } else if ((nt = dlsym( handle, "__wine_spec_nt_header" ))) { module = (HMODULE)((nt->OptionalHeader.ImageBase + 0xffff) & ~0xffff); LIST_FOR_EACH_ENTRY( builtin, &builtin_modules, struct builtin_module, entry ) if (builtin->module == module) goto already_loaded; if (map_so_dll( nt, module )) { dlclose( handle ); return STATUS_NO_MEMORY; } } else /* already loaded .so */ { WARN( "%s already loaded?\n", debugstr_a(so_name)); LIST_FOR_EACH_ENTRY( builtin, &builtin_modules, struct builtin_module, entry ) if (builtin->handle == handle) goto already_loaded; return STATUS_INVALID_IMAGE_FORMAT; } if (add_builtin_module( module, handle, NULL )) { dlclose( handle ); return STATUS_NO_MEMORY; } virtual_create_builtin_view( module ); *ret_module = module; return STATUS_SUCCESS; already_loaded: *ret_module = builtin->module; dlclose( handle ); return STATUS_SUCCESS; } /*********************************************************************** * load_so_dll */ static NTSTATUS CDECL load_so_dll( UNICODE_STRING *nt_name, void **module ) { static const WCHAR soW[] = {'.','s','o',0}; ANSI_STRING unix_name; NTSTATUS status; DWORD len; if (nt_to_unix_file_name( nt_name, &unix_name, FILE_OPEN )) return STATUS_DLL_NOT_FOUND; /* remove .so extension from Windows name */ len = nt_name->Length / sizeof(WCHAR); if (len > 3 && !wcsicmp( nt_name->Buffer + len - 3, soW )) nt_name->Length -= 3 * sizeof(WCHAR); status = dlopen_dll( unix_name.Buffer, module ); RtlFreeAnsiString( &unix_name ); return status; } /* 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 } static inline char *prepend( char *buffer, const char *str, size_t len ) { return memcpy( buffer - len, str, len ); } /*********************************************************************** * open_dll_file * * Open a file for a new dll. Helper for find_dll_file. */ static NTSTATUS open_dll_file( UNICODE_STRING *nt_name, void **module, pe_image_info_t *image_info ) { struct builtin_module *builtin; FILE_BASIC_INFORMATION info; OBJECT_ATTRIBUTES attr; IO_STATUS_BLOCK io; LARGE_INTEGER size; FILE_OBJECTID_BUFFER id; SIZE_T len = 0; NTSTATUS status; HANDLE handle, mapping; InitializeObjectAttributes( &attr, nt_name, OBJ_CASE_INSENSITIVE, 0, NULL ); if ((status = NtOpenFile( &handle, GENERIC_READ | SYNCHRONIZE, &attr, &io, FILE_SHARE_READ | FILE_SHARE_DELETE, FILE_SYNCHRONOUS_IO_NONALERT | FILE_NON_DIRECTORY_FILE ))) { if (status != STATUS_OBJECT_PATH_NOT_FOUND && status != STATUS_OBJECT_NAME_NOT_FOUND && !NtQueryAttributesFile( &attr, &info )) { /* if the file exists but failed to open, report the error */ return status; } /* otherwise continue searching */ return STATUS_DLL_NOT_FOUND; } if (!NtFsControlFile( handle, 0, NULL, NULL, &io, FSCTL_GET_OBJECT_ID, NULL, 0, &id, sizeof(id) )) { LIST_FOR_EACH_ENTRY( builtin, &builtin_modules, struct builtin_module, entry ) { if (!memcmp( &builtin->id, id.ObjectId, sizeof(builtin->id) )) { TRACE( "%s is the same file as existing module %p\n", debugstr_w( nt_name->Buffer ), builtin->module ); NtClose( handle ); NtUnmapViewOfSection( NtCurrentProcess(), *module ); *module = builtin->module; return STATUS_SUCCESS; } } } else memset( id.ObjectId, 0, sizeof(id.ObjectId) ); size.QuadPart = 0; status = NtCreateSection( &mapping, STANDARD_RIGHTS_REQUIRED | SECTION_QUERY | SECTION_MAP_READ | SECTION_MAP_EXECUTE, NULL, &size, PAGE_EXECUTE_READ, SEC_IMAGE, handle ); NtClose( handle ); if (status) return status; if (*module) { NtUnmapViewOfSection( NtCurrentProcess(), *module ); *module = NULL; } status = virtual_map_section( mapping, module, 0, 0, NULL, &len, 0, PAGE_EXECUTE_READ, image_info ); if (status == STATUS_IMAGE_NOT_AT_BASE) status = STATUS_SUCCESS; NtClose( mapping ); if (status) return status; /* ignore non-builtins */ if (!(image_info->image_flags & IMAGE_FLAGS_WineBuiltin)) { WARN( "%s found in WINEDLLPATH but not a builtin, ignoring\n", debugstr_us(nt_name) ); status = STATUS_DLL_NOT_FOUND; } else if (image_info->cpu != client_cpu) { TRACE( "%s is for CPU %u, continuing search\n", debugstr_us(nt_name), image_info->cpu ); status = STATUS_IMAGE_MACHINE_TYPE_MISMATCH; } if (!status) status = add_builtin_module( *module, NULL, &id ); if (status) { NtUnmapViewOfSection( NtCurrentProcess(), *module ); *module = NULL; } return status; } /*********************************************************************** * open_builtin_file */ static NTSTATUS open_builtin_file( char *name, void **module, pe_image_info_t *image_info ) { ANSI_STRING strA; UNICODE_STRING nt_name; NTSTATUS status; int fd; nt_name.Buffer = NULL; RtlInitAnsiString( &strA, name ); if ((status = unix_to_nt_file_name( &strA, &nt_name ))) return status; status = open_dll_file( &nt_name, module, image_info ); RtlFreeUnicodeString( &nt_name ); if (status != STATUS_DLL_NOT_FOUND) return status; /* try .so file */ strcat( name, ".so" ); if ((fd = open( name, O_RDONLY )) != -1) { if (check_library_arch( fd )) { NtUnmapViewOfSection( NtCurrentProcess(), *module ); *module = NULL; if (!dlopen_dll( name, module )) { memset( image_info, 0, sizeof(*image_info) ); image_info->image_flags = IMAGE_FLAGS_WineBuiltin; status = STATUS_SUCCESS; } else { ERR( "failed to load .so lib %s\n", debugstr_a(name) ); status = STATUS_PROCEDURE_NOT_FOUND; } } else status = STATUS_IMAGE_MACHINE_TYPE_MISMATCH; close( fd ); } return status; } /*********************************************************************** * load_builtin_dll */ static NTSTATUS CDECL load_builtin_dll( const WCHAR *name, void **module, pe_image_info_t *image_info ) { unsigned int i, pos, len, namelen, maxlen = 0; char *ptr, *file; NTSTATUS status = STATUS_DLL_NOT_FOUND; BOOL found_image = FALSE; len = wcslen( name ); if (build_dir) maxlen = strlen(build_dir) + sizeof("/programs/") + len; maxlen = max( maxlen, dll_path_maxlen + 1 ) + len + sizeof(".so"); if (!(file = malloc( maxlen ))) return STATUS_NO_MEMORY; pos = maxlen - len - sizeof(".so"); /* we don't want to depend on the current codepage here */ for (i = 0; i < len; i++) { if (name[i] > 127) goto done; file[pos + i] = (char)name[i]; if (file[pos + i] >= 'A' && file[pos + i] <= 'Z') file[pos + i] += 'a' - 'A'; } file[--pos] = '/'; if (build_dir) { /* try as a dll */ ptr = file + pos; namelen = len + 1; file[pos + len + 1] = 0; if (namelen > 4 && !memcmp( ptr + namelen - 4, ".dll", 4 )) namelen -= 4; ptr = prepend( ptr, ptr, namelen ); ptr = prepend( ptr, "/dlls", sizeof("/dlls") - 1 ); ptr = prepend( ptr, build_dir, strlen(build_dir) ); status = open_builtin_file( ptr, module, image_info ); if (status != STATUS_DLL_NOT_FOUND) goto done; /* now as a program */ ptr = file + pos; namelen = len + 1; file[pos + len + 1] = 0; if (namelen > 4 && !memcmp( ptr + namelen - 4, ".exe", 4 )) namelen -= 4; ptr = prepend( ptr, ptr, namelen ); ptr = prepend( ptr, "/programs", sizeof("/programs") - 1 ); ptr = prepend( ptr, build_dir, strlen(build_dir) ); status = open_builtin_file( ptr, module, image_info ); if (status != STATUS_DLL_NOT_FOUND) goto done; } for (i = 0; dll_paths[i]; i++) { file[pos + len + 1] = 0; ptr = prepend( file + pos, dll_paths[i], strlen(dll_paths[i]) ); status = open_builtin_file( ptr, module, image_info ); if (status == STATUS_IMAGE_MACHINE_TYPE_MISMATCH) found_image = TRUE; else if (status != STATUS_DLL_NOT_FOUND) goto done; } if (found_image) status = STATUS_IMAGE_MACHINE_TYPE_MISMATCH; WARN( "cannot find builtin library for %s\n", debugstr_w(name) ); done: free( file ); return status; } /*********************************************************************** * unload_builtin_dll */ static NTSTATUS CDECL unload_builtin_dll( void *module ) { struct builtin_module *builtin; LIST_FOR_EACH_ENTRY( builtin, &builtin_modules, struct builtin_module, entry ) { if (builtin->module != module) continue; list_remove( &builtin->entry ); if (builtin->handle) dlclose( builtin->handle ); free( builtin ); return STATUS_SUCCESS; } return STATUS_INVALID_PARAMETER; } #ifdef __FreeBSD__ /* The PT_LOAD segments are sorted in increasing order, and the first * starts at the beginning of the ELF file. By parsing the file, we can * find that first PT_LOAD segment, from which we can find the base * address it wanted, and knowing mapbase where the binary was actually * loaded, use them to work out the relocbase offset. */ static BOOL get_relocbase(caddr_t mapbase, caddr_t *relocbase) { Elf_Half i; #ifdef _WIN64 const Elf64_Ehdr *elf_header = (Elf64_Ehdr*) mapbase; #else const Elf32_Ehdr *elf_header = (Elf32_Ehdr*) mapbase; #endif const Elf_Phdr *prog_header = (const Elf_Phdr *)(mapbase + elf_header->e_phoff); for (i = 0; i < elf_header->e_phnum; i++) { if (prog_header->p_type == PT_LOAD) { caddr_t desired_base = (caddr_t)((prog_header->p_vaddr / prog_header->p_align) * prog_header->p_align); *relocbase = (caddr_t) (mapbase - desired_base); return TRUE; } prog_header++; } return FALSE; } #endif /************************************************************************* * init_builtin_dll */ static void CDECL init_builtin_dll( void *module ) { #ifdef HAVE_DLINFO struct builtin_module *builtin; struct link_map *map; void (*init_func)(int, char **, char **) = NULL; void (**init_array)(int, char **, char **) = NULL; ULONG_PTR i, init_arraysz = 0; #ifdef _WIN64 const Elf64_Dyn *dyn; #else const Elf32_Dyn *dyn; #endif LIST_FOR_EACH_ENTRY( builtin, &builtin_modules, struct builtin_module, entry ) { if (builtin->module != module) continue; if (!builtin->handle) break; if (!dlinfo( builtin->handle, RTLD_DI_LINKMAP, &map )) goto found; break; } return; found: for (dyn = map->l_ld; dyn->d_tag; dyn++) { caddr_t relocbase = (caddr_t)map->l_addr; #ifdef __FreeBSD__ /* On older FreeBSD versions, l_addr was the absolute load address, now it's the relocation offset. */ if (!dlsym(RTLD_DEFAULT, "_rtld_version_laddr_offset")) if (!get_relocbase(map->l_addr, &relocbase)) return; #endif switch (dyn->d_tag) { case 0x60009990: init_array = (void *)(relocbase + dyn->d_un.d_val); break; case 0x60009991: init_arraysz = dyn->d_un.d_val; break; case 0x60009992: init_func = (void *)(relocbase + dyn->d_un.d_val); break; } } TRACE( "%p: got init_func %p init_array %p %lu\n", module, init_func, init_array, init_arraysz ); if (init_func) init_func( main_argc, main_argv, main_envp ); if (init_array) for (i = 0; i < init_arraysz / sizeof(*init_array); i++) init_array[i]( main_argc, main_argv, main_envp ); #endif } /*********************************************************************** * load_ntdll */ static HMODULE load_ntdll(void) { NTSTATUS status; void *module; int fd; char *name = build_path( dll_dir, "ntdll.dll" ); if ((fd = open( name, O_RDONLY )) != -1) { status = virtual_map_ntdll( fd, &module ); close( fd ); } else { free( name ); name = build_path( dll_dir, "ntdll.dll.so" ); status = dlopen_dll( name, &module ); } if (status) fatal_error( "failed to load %s error %x\n", name, status ); free( name ); return module; } /*********************************************************************** * get_image_address */ ULONG_PTR get_image_address(void) { #ifdef HAVE_GETAUXVAL ULONG_PTR size, num, phdr_addr = getauxval( AT_PHDR ); ElfW(Phdr) *phdr; if (!phdr_addr) return 0; phdr = (ElfW(Phdr) *)phdr_addr; size = getauxval( AT_PHENT ); num = getauxval( AT_PHNUM ); while (num--) { if (phdr->p_type == PT_PHDR) return phdr_addr - phdr->p_offset; phdr = (ElfW(Phdr) *)((char *)phdr + size); } #elif defined(__APPLE__) && defined(TASK_DYLD_INFO) struct task_dyld_info dyld_info; mach_msg_type_number_t size = TASK_DYLD_INFO_COUNT; if (task_info(mach_task_self(), TASK_DYLD_INFO, (task_info_t)&dyld_info, &size) == KERN_SUCCESS) return dyld_info.all_image_info_addr; #endif return 0; } /* math function wrappers */ static double CDECL ntdll_atan( double d ) { return atan( d ); } static double CDECL ntdll_ceil( double d ) { return ceil( d ); } static double CDECL ntdll_cos( double d ) { return cos( d ); } static double CDECL ntdll_fabs( double d ) { return fabs( d ); } static double CDECL ntdll_floor( double d ) { return floor( d ); } static double CDECL ntdll_log( double d ) { return log( d ); } static double CDECL ntdll_pow( double x, double y ) { return pow( x, y ); } static double CDECL ntdll_sin( double d ) { return sin( d ); } static double CDECL ntdll_sqrt( double d ) { return sqrt( d ); } static double CDECL ntdll_tan( double d ) { return tan( d ); } /*********************************************************************** * unix_funcs */ static struct unix_funcs unix_funcs = { NtAlertResumeThread, NtAlertThread, NtAllocateVirtualMemory, NtAreMappedFilesTheSame, NtAssignProcessToJobObject, NtCancelTimer, NtClearEvent, NtClose, NtContinue, NtCreateEvent, NtCreateIoCompletion, NtCreateJobObject, NtCreateKeyedEvent, NtCreateMailslotFile, NtCreateMutant, NtCreateNamedPipeFile, NtCreateSection, NtCreateSemaphore, NtCreateThreadEx, NtCreateTimer, NtCreateUserProcess, NtCurrentTeb, NtDelayExecution, NtDeleteFile, NtDeviceIoControlFile, NtDuplicateObject, NtFlushBuffersFile, NtFlushInstructionCache, NtFlushProcessWriteBuffers, NtFlushVirtualMemory, NtFreeVirtualMemory, NtFsControlFile, NtGetContextThread, NtGetCurrentProcessorNumber, NtGetWriteWatch, NtIsProcessInJob, NtLockVirtualMemory, NtMapViewOfSection, NtNotifyChangeDirectoryFile, NtOpenEvent, NtOpenIoCompletion, NtOpenJobObject, NtOpenKeyedEvent, NtOpenMutant, NtOpenProcess, NtOpenSection, NtOpenSemaphore, NtOpenThread, NtOpenTimer, NtPowerInformation, NtProtectVirtualMemory, NtPulseEvent, NtQueryAttributesFile, NtQueryDirectoryFile, NtQueryEvent, NtQueryFullAttributesFile, NtQueryInformationFile, NtQueryInformationJobObject, NtQueryInformationProcess, NtQueryInformationThread, NtQueryIoCompletion, NtQueryMutant, NtQueryObject, NtQueryPerformanceCounter, NtQuerySection, NtQuerySemaphore, NtQuerySystemInformation, NtQuerySystemInformationEx, NtQuerySystemTime, NtQueryTimer, NtQueryVirtualMemory, NtQueryVolumeInformationFile, NtQueueApcThread, NtRaiseException, NtReadFile, NtReadFileScatter, NtReadVirtualMemory, NtReleaseKeyedEvent, NtReleaseMutant, NtReleaseSemaphore, NtRemoveIoCompletion, NtRemoveIoCompletionEx, NtResetEvent, NtResetWriteWatch, NtResumeProcess, NtResumeThread, NtSetContextThread, NtSetEvent, NtSetInformationFile, NtSetInformationJobObject, NtSetInformationObject, NtSetInformationProcess, NtSetInformationThread, NtSetIoCompletion, NtSetLdtEntries, NtSetSystemTime, NtSetTimer, NtSetVolumeInformationFile, NtSignalAndWaitForSingleObject, NtSuspendProcess, NtSuspendThread, NtTerminateJobObject, NtTerminateProcess, NtTerminateThread, NtUnlockVirtualMemory, NtUnmapViewOfSection, NtWaitForKeyedEvent, NtWaitForMultipleObjects, NtWaitForSingleObject, NtWriteFile, NtWriteFileGather, NtWriteVirtualMemory, NtYieldExecution, DbgUiIssueRemoteBreakin, RtlGetSystemTimePrecise, RtlWaitOnAddress, RtlWakeAddressAll, RtlWakeAddressSingle, fast_RtlpWaitForCriticalSection, fast_RtlpUnWaitCriticalSection, fast_RtlDeleteCriticalSection, fast_RtlTryAcquireSRWLockExclusive, fast_RtlAcquireSRWLockExclusive, fast_RtlTryAcquireSRWLockShared, fast_RtlAcquireSRWLockShared, fast_RtlReleaseSRWLockExclusive, fast_RtlReleaseSRWLockShared, fast_RtlSleepConditionVariableSRW, fast_RtlSleepConditionVariableCS, fast_RtlWakeConditionVariable, ntdll_atan, ntdll_ceil, ntdll_cos, ntdll_fabs, ntdll_floor, ntdll_log, ntdll_pow, ntdll_sin, ntdll_sqrt, ntdll_tan, get_initial_environment, get_startup_info, get_dynamic_environment, get_initial_console, get_initial_directory, get_unix_codepage_data, get_locales, get_version, get_build_id, get_host_version, virtual_map_section, virtual_alloc_thread_stack, virtual_locked_recvmsg, virtual_release_address_space, virtual_set_large_address_space, exit_thread, exit_process, exec_process, wine_server_call, server_send_fd, server_fd_to_handle, server_handle_to_fd, server_release_fd, server_init_process_done, nt_to_unix_file_name, unix_to_nt_file_name, set_show_dot_files, load_so_dll, load_builtin_dll, unload_builtin_dll, init_builtin_dll, unwind_builtin_dll, __wine_dbg_get_channel_flags, __wine_dbg_strdup, __wine_dbg_output, __wine_dbg_header, }; /*********************************************************************** * start_main_thread */ static void start_main_thread(void) { BOOL suspend; TEB *teb = virtual_alloc_first_teb(); signal_init_threading(); signal_alloc_thread( teb ); signal_init_thread( teb ); dbg_init(); server_init_process(); startup_info_size = server_init_thread( teb->Peb, &suspend ); virtual_map_user_shared_data(); init_cpu_info(); init_files(); NtCreateKeyedEvent( &keyed_event, GENERIC_READ | GENERIC_WRITE, NULL, 0 ); p__wine_set_unix_funcs( NTDLL_UNIXLIB_VERSION, &unix_funcs ); } #ifdef __APPLE__ struct apple_stack_info { void *stack; size_t desired_size; }; static void *apple_wine_thread( void *arg ) { start_main_thread(); return NULL; } /*********************************************************************** * apple_alloc_thread_stack * * Callback for mmap_enum_reserved_areas to allocate space for * the secondary thread's stack. */ #ifndef _WIN64 static int CDECL 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 *arg ) { 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 ) && mmap_enum_reserved_areas( apple_alloc_thread_stack, &info, 1 )) { mmap_remove_reserved_area( info.stack, info.desired_size ); pthread_attr_setstackaddr( &attr, (char*)info.stack + info.desired_size ); } #endif if (!pthread_attr_setdetachstate( &attr, PTHREAD_CREATE_JOINABLE ) && !pthread_create( &thread, &attr, apple_wine_thread, NULL )) success = 1; pthread_attr_destroy( &attr ); } if (!success) exit(1); } /*********************************************************************** * 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) { CFRunLoopSourceContext source_context = { 0 }; CFRunLoopSourceRef source; if (!pthread_main_np()) 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.perform = apple_create_wine_thread; source = CFRunLoopSourceCreate( NULL, 0, &source_context ); CFRunLoopAddSource( CFRunLoopGetCurrent(), source, kCFRunLoopCommonModes ); CFRunLoopSourceSignal( source ); CFRelease( source ); CFRunLoopRun(); /* Should never return, except on error. */ } #endif /* __APPLE__ */ #ifdef __ANDROID__ static int pre_exec(void) { #if defined(__i386__) || defined(__x86_64__) return 1; /* we have a preloader */ #else return 0; /* no exec needed */ #endif } #elif defined(__linux__) && (defined(__i386__) || defined(__arm__)) static void check_vmsplit( void *stack ) { if (stack < (void *)0x80000000) { /* if the stack is below 0x80000000, assume we can safely try a munmap there */ if (munmap( (void *)0x80000000, 1 ) == -1 && errno == EINVAL) ERR( "Warning: memory above 0x80000000 doesn't seem to be accessible.\n" "Wine requires a 3G/1G user/kernel memory split to work properly.\n" ); } } static int pre_exec(void) { int temp; check_vmsplit( &temp ); #ifdef __i386__ return 1; /* we have a preloader on x86 */ #else return 0; #endif } #elif defined(__linux__) && (defined(__x86_64__) || defined(__aarch64__)) static int pre_exec(void) { return 1; /* we have a preloader on x86-64/arm64 */ } #elif defined(__APPLE__) && (defined(__i386__) || defined(__x86_64__)) static int pre_exec(void) { return 1; /* we have a preloader */ } #elif (defined(__FreeBSD__) || defined (__FreeBSD_kernel__) || defined(__DragonFly__)) static int pre_exec(void) { struct rlimit rl; rl.rlim_cur = 0x02000000; rl.rlim_max = 0x02000000; setrlimit( RLIMIT_DATA, &rl ); return 1; } #else static int pre_exec(void) { return 0; /* no exec needed */ } #endif /*********************************************************************** * check_command_line * * Check if command line is one that needs to be handled specially. */ static void check_command_line( int argc, char *argv[] ) { static const char usage[] = "Usage: wine PROGRAM [ARGUMENTS...] Run the specified program\n" " wine --help Display this help and exit\n" " wine --version Output version information and exit"; if (argc <= 1) { fprintf( stderr, "%s\n", usage ); exit(1); } if (!strcmp( argv[1], "--help" )) { printf( "%s\n", usage ); exit(0); } if (!strcmp( argv[1], "--version" )) { printf( "%s\n", get_build_id() ); exit(0); } } /*********************************************************************** * __wine_main * * Main entry point called by the wine loader. */ void __wine_main( int argc, char *argv[], char *envp[] ) { init_paths( argc, argv, envp ); if (!getenv( "WINELOADERNOEXEC" )) /* first time around */ { static char noexec[] = "WINELOADERNOEXEC=1"; putenv( noexec ); check_command_line( argc, argv ); if (pre_exec()) { char **new_argv = malloc( (argc + 2) * sizeof(*argv) ); memcpy( new_argv + 1, argv, (argc + 1) * sizeof(*argv) ); loader_exec( argv0, new_argv, client_cpu ); fatal_error( "could not exec the wine loader\n" ); } } #ifdef RLIMIT_NOFILE set_max_limit( RLIMIT_NOFILE ); #endif #ifdef RLIMIT_AS set_max_limit( RLIMIT_AS ); #endif virtual_init(); ntdll_module = load_ntdll(); fixup_ntdll_imports( &__wine_spec_nt_header ); init_environment( argc, argv, envp ); wine_dll_set_callback( load_builtin_callback ); #ifdef __APPLE__ apple_main_thread(); #endif start_main_thread(); }