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Sweden-Number/dlls/ntdll/unix/loader.c

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/*
* 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 <assert.h>
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <signal.h>
#ifdef HAVE_LINK_H
# include <link.h>
#endif
#ifdef HAVE_PWD_H
# include <pwd.h>
#endif
#ifdef HAVE_ELF_H
# include <elf.h>
#endif
#ifdef HAVE_LINK_H
# include <link.h>
#endif
#ifdef HAVE_SYS_AUXV_H
# include <sys/auxv.h>
#endif
#ifdef HAVE_SYS_MMAN_H
# include <sys/mman.h>
#endif
#ifdef HAVE_SYS_RESOURCE_H
# include <sys/resource.h>
#endif
#ifdef HAVE_SYS_UTSNAME_H
#include <sys/utsname.h>
#endif
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
#ifdef __APPLE__
# include <CoreFoundation/CoreFoundation.h>
# define LoadResource MacLoadResource
# define GetCurrentThread MacGetCurrentThread
# include <CoreServices/CoreServices.h>
# undef LoadResource
# undef GetCurrentThread
# include <pthread.h>
# include <mach/mach.h>
# include <mach/mach_error.h>
# include <mach-o/getsect.h>
# include <crt_externs.h>
# include <spawn.h>
# 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
extern int __wine_main_argc;
extern char **__wine_main_argv;
extern char **__wine_main_environ;
#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;
HMODULE ntdll_module = NULL;
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, int is_child_64bit )
{
char *p, *path;
if (build_dir)
{
argv[1] = build_path( build_dir, is_child_64bit ? "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, int is_child_64bit,
ULONGLONG res_start, ULONGLONG res_end )
{
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, is_child_64bit );
}
/***********************************************************************
* 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;
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
}
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, FALSE )) 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)
{
void *module;
char *name = build_path( dll_dir, "ntdll.dll.so" );
NTSTATUS 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,
NtCreateFile,
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,
NtOpenFile,
NtOpenIoCompletion,
NtOpenJobObject,
NtOpenKeyedEvent,
NtOpenMutant,
NtOpenProcess,
NtOpenSection,
NtOpenSemaphore,
NtOpenThread,
NtOpenTimer,
NtPowerInformation,
NtProtectVirtualMemory,
NtPulseEvent,
NtQueryAttributesFile,
NtQueryDirectoryFile,
NtQueryEvent,
NtQueryFullAttributesFile,
NtQueryInformationFile,
NtQueryInformationJobObject,
NtQueryInformationProcess,
NtQueryInformationThread,
NtQueryIoCompletion,
NtQueryMutant,
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,
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_dynamic_environment,
get_initial_directory,
get_unix_codepage,
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,
init_threading,
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,
};
#ifdef __APPLE__
struct apple_stack_info
{
void *stack;
size_t desired_size;
};
static void *apple_wine_thread( void *arg )
{
p__wine_set_unix_funcs( NTDLL_UNIXLIB_VERSION, &unix_funcs );
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, is_win64 );
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
p__wine_set_unix_funcs( NTDLL_UNIXLIB_VERSION, &unix_funcs );
}
static int add_area( void *base, size_t size, void *arg )
{
mmap_add_reserved_area( base, size );
return 0;
}
/***********************************************************************
* __wine_init_unix_lib
*
* Lib entry point called by ntdll.dll.so if not yet initialized.
*/
NTSTATUS __cdecl __wine_init_unix_lib( HMODULE module, const void *ptr_in, void *ptr_out )
{
const IMAGE_NT_HEADERS *nt = ptr_in;
#ifdef __APPLE__
extern char **__wine_get_main_environment(void);
char **envp = __wine_get_main_environment();
#else
char **envp = __wine_main_environ;
#endif
init_paths( __wine_main_argc, __wine_main_argv, envp );
ntdll_module = module;
map_so_dll( nt, module );
fixup_ntdll_imports( &__wine_spec_nt_header );
init_environment( __wine_main_argc, __wine_main_argv, envp );
wine_dll_set_callback( load_builtin_callback );
*(struct unix_funcs **)ptr_out = &unix_funcs;
wine_mmap_enum_reserved_areas( add_area, NULL, 0 );
return STATUS_SUCCESS;
}
BOOL WINAPI DECLSPEC_HIDDEN DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
{
if (reason == DLL_PROCESS_ATTACH) LdrDisableThreadCalloutsForDll( inst );
return TRUE;
}
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