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Re: Remove "Path" lines from sample config
by Saulius Krasuckas April 14, 2004

April 14, 2004

> Changelog: > Remove "Path" lines from sample config. > Setup the links for the default DOS drives in wineinstall. hey, it is plain and simple change but it makes me disappointed right after second reinstall of Wine. GNU ln when encounters existing target (link to directory, in fact) creates a sym-link with the name of original target already in mentioned symlinked dir. that we are getting is like a: ln: `/home/s2/.wine/dosdevices/c:/c': File exists and this: lrwxrwxrwx 1 s2 s2 10 Apr 14 15:36 /home/s2/.wine/dosdevices/c: -> /home/s2/c lrwxrwxrwx 1 s2 s2 10 Apr 14 15:58 /home/s2/.wine/dosdevices/c:/c -> /home/s2/c as that does not belong to Wine binary (it is more to config of Wine-user), i'd not like to change existing dosdevices/ symlinks during "make uninstall" or even "tools/wineinstall". OK, maybe target should only be removed if it is not a symlink. so, what about some additional small bash function? Index: wine/tools/wineinstall =================================================================== RCS file: /home/wine/wine/tools/wineinstall,v retrieving revision 1.67 diff -u -r1.67 wineinstall --- wine/tools/wineinstall 12 Apr 2004 22:05:00 -0000 1.67 +++ wine/tools/wineinstall 14 Apr 2004 14:54:05 -0000 @@ -140,6 +140,16 @@ link_app winebrowser "$CROOT/windows/winebrowser.exe" } +function link_file_safely { + # makes link to target if link does not exist already + # parameters: + # $1 - path to target, + # $2 - path to link name + if [ -L $2 ]; then return 1; fi + if [ -e $2 ]; then return 2; fi + ln -s $1 $2 +} + # startup... echo "WINE Installer v0.74" @@ -600,12 +610,12 @@ echo "Preparing to install default Wine registry entries..." # Make sure we are on a Windows drive - ln -s /mnt/fd0 ~/.wine/dosdevices/a: - ln -s $CROOT ~/.wine/dosdevices/c: - ln -s /cdrom ~/.wine/dosdevices/d: - ln -s /tmp ~/.wine/dosdevices/e: - ln -s ~ ~/.wine/dosdevices/f: - ln -s / ~/.wine/dosdevices/z: + link_file_safely /mnt/fd0 ~/.wine/dosdevices/a: + link_file_safely $CROOT ~/.wine/dosdevices/c: + link_file_safely /cdrom ~/.wine/dosdevices/d: + link_file_safely /tmp ~/.wine/dosdevices/e: + link_file_safely ~ ~/.wine/dosdevices/f: + link_file_safely / ~/.wine/dosdevices/z: echo "Installing default Wine registry entries..." echo PS and yes, that double check in "link_file_safely" function (one for existing target/link with a given name and second about target being some file of other kind) may be overhead. PPS IMHO it could be nice to eliminate overhead of multiple passing string "~/.wine/dosdevices/" by assigning its value to some script variable and by putting out that block into separate function, say some "mk_dosdevices" or like. ughm?

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Re: exec-shield workaround take 4
by Mike Hearn April 14, 2004

April 14, 2004

On Wed, 14 Apr 2004 18:44:45 +0900, Mike McCormack wrote: > Anybody have a FreeBSD machine to test this on? If it still uses syscalls surely that won't work on anything other than Linux?

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RE: Handling dialog messages for non-template based dialogs
by Santosh Siddheshwar April 14, 2004

April 14, 2004

Thanks for the feedback. Excellent catches! Hope my next mail to wine-patches gets through! Regards Santosh Siddheshwar > -----Original Message----- > From: Dmitry Timoshkov [SMTP:dmitry(a)baikal.ru] > Sent: Tuesday, April 13, 2004 7:38 PM > To: Santosh Siddheshwar; Robert Shearman; wine-devel(a)winehq.org > Cc: santosh.s(a)sonata-software.com > Subject: Re: Handling dialog messages for non-template based dialogs > > "Santosh Siddheshwar" <santosh.s(a)sonata-software.com> wrote: > > > I didnt get the second point that you mention > > Another one might be that WM_CREATE must be always > > passed to DEFDLG_Proc regardless of what result an application > > returned to DefDlgProc16/A/W. > > Here is a snippet of DefDlgProc16 (DefDlgProcA/W are the same): > > LRESULT WINAPI DefDlgProc16( HWND16 hwnd, UINT16 msg, WPARAM16 wParam, > LPARAM lParam ) > { > WNDPROC16 dlgproc; > HWND hwnd32 = WIN_Handle32( hwnd ); > BOOL result = FALSE; > > ===== > Perhaps WM_CREATE handling code should be moved here: > if (msg == WM_CREATE) > { > wndPtr->flags |= WIN_ISDIALOG; > blah-blah-blah > } > ===== > > SetWindowLongW( hwnd32, DWL_MSGRESULT, 0 ); > > if ((dlgproc = (WNDPROC16)DEFDLG_GetDlgProc( hwnd32 ))) > { > /* Call dialog procedure */ > result = CallWindowProc16( dlgproc, hwnd, msg, wParam, lParam ); > /* 16 bit dlg procs only return BOOL16 */ > if( WINPROC_GetProcType( (WNDPROC)dlgproc ) == WIN_PROC_16 ) > result = LOWORD(result); > } > > if (!result && IsWindow(hwnd32)) <== here we check whether an app > handled the message > { > /* callback didn't process this message */ > > switch(msg) > { > case WM_ERASEBKGND: > > Probably WM_CREATE handling should be performed even before control > is passed to an application. > > -- > Dmitry. ********************************************************************* Disclaimer: The information in this e-mail and any attachments is confidential / privileged. It is intended solely for the addressee or addressees. If you are not the addressee indicated in this message, you may not copy or deliver this message to anyone. In such case, you should destroy this message and kindly notify the sender by reply email. Please advise immediately if you or your employer does not consent to Internet email for messages of this kind. *********************************************************************

2 1

Game support
by James Perry April 14, 2004

April 14, 2004

Hi everyone, I've been following Wine development for a while but now I think it's time to contribute something. I don't use Windows anymore (except for PowerPoint at work), but I decided it would be good to be able to play some games on Linux. So I grabbed Wine from CVS, compiled it up and tested some games, with the intention of finding where the problems were and hopefully fixing them. I have put my results on a web page at: http://www.epcc.ed.ac.uk/~jamesp/wine-games.html to avoid making this posting even longer. Note that I haven't looked in detail at most of these yet, I just tried them out once to see what would happen. I'm gradually working through the list, debugging them. I've already submitted one patch (to solve a D3D blend mode problem that affected SonicR). I have traced a number of the other problems to specific aspects of Wine, but I'm not sure how to go about fixing them. Any advice on these points from experienced developers would be welcome: 1. MusicVR exits with this error: X Error of failed request: GLXBadDrawable Major opcode of failed request: 145 (GLX) Minor opcode of failed request: 11 (X_GLXSwapBuffers) Serial number of failed request: 10522 Current serial number in output stream: 10523 I traced it to the line: glXMakeCurrent(default_display, None, NULL) in dlls/opengl32/wgl.c. My OpenGL (nVidia) doesn't seem to like the drawable being set to None, although according to the GLX docs, this should be OK. Simply commenting out the line makes the game work fine, but I don't think this is the right fix. Any ideas? 2. Settlers III crashes almost straight away, in the code of the PE-Crypt protection system. This is caused by the processor's direction flag (which controls whether pointers are incremented or decremented by string instructions) getting reset somewhere, probably in Wine code. Can anyone comment on treatment of this flag in Wine? Is it likely to be clobbered in lots of places? Basically, is there any hope of getting this working? I'm not sure where to start with this one. 3. South Park Rally creates its DirectInput object using the generic OLE functions, which doesn't work in Wine right now. I have some initial code to support this, but not sure if it does everything it needs to. I have: - copied regsvr.c from the DirectSound DLL and edited it to register the DirectInput classes, and implement the DirectInput Dll[Un]RegisterServer methods - removed the stubs of those functions from dinput_main.c - added regsvr.c to the list of source files in dinput's Makefile.in, and added ole32 and advapi32 to the list of imports It would also be good if the default registry created by winebuild contained the necessary entries to make this work (I had to add them by hand), but I couldn't find where the initial registry entries come from. If this all sounds OK, I can submit it as a patch. Although even with this support, South Park Rally fails with another DirectX problem. One step at a time though... 4. The CD audio in Sonic 3D doesn't play in Wine yet. I found there were two separate problems causing this. First, it's trying to use CD device 2. No idea where this number comes from, as I have only one CD-ROM in the system, and the game doesn't seem to be specifying device 2 anywhere. Anyone know where mcicda gets the device ID from, save me spending ages looking for it? Second, it's using TMSF (track,minutes,seconds,frames) format to specify locations on the CD. These appear as colon-separated values in the MCI commands (e.g. "02:00:00") but the argument parser chokes on them, expecting a single integer. I got around this by hacking MCI_GetDWord to recognise the colons and parse these arguments correctly, but maybe that's not the way to do it... any suggestions? Sorry this post is so long. Finally, I'd just like to say great job everyone! I was impressed that things like DirectX, InstallShield and even SecuROM copy protection are working so well - they're flawless on some of the games I tried. It's really come on since I first tried it back in 2000. Cheers, James

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Re: shell32 - file not found
by Uwe Bonnes April 14, 2004

April 14, 2004

>>>>> "Martin" == Martin Fuchs <martin-fuchs(a)gmx.net> writes: Martin> Changelog: return "file not found" error values instead of Martin> E_INVALIDARG if _ILCreateFromPathA() failed to find files ... Martin> 0x80070002L; /* file not found */ } else { pidlTemp = ... Don't we have a symbolic error for that? -- Uwe Bonnes bon(a)elektron.ikp.physik.tu-darmstadt.de Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt --------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------

2 1

(no subject)
by j.cooper1＠comcast.net April 13, 2004

April 13, 2004

I am trying to compile Wine (the latest CVS) on Mac os x. If I emailed the wrong list sorry I noticed what I think is a bug in file dll/kernel/console.c around line 1003 exists function below when compiling it gives me an error about x being undefined or something similar COORD WINAPI GetLargestConsoleWindowSize(HANDLE hConsoleOutput) { COORD c; c.X = 80; c.Y = 24; TRACE("(%p), returning %dx%d\n", hConsoleOutput, c.X, x.Y); return c; } #endif /* defined(__i386__) */ Changing the x.Y to c.X seems to fix the problem COORD WINAPI GetLargestConsoleWindowSize(HANDLE hConsoleOutput) { COORD c; c.X = 80; c.Y = 24; TRACE("(%p), returning %dx%d\n", hConsoleOutput, c.X, x.Y); return c; } I am not a programmer nor do I know how to create a patch or if I am correct in my assumptions. Could some one please help me out? Jeff ps.. I now get an error compiling dbghelp. I am not on the computer I am compiling on so I can't copy and paste the error. If there are typos in the error that is because I am copying the code by typing it up elf_module.c:627: error: previous declaration of 'elf_read_wine_loader_dbg_info' dbghelp_private.h:275: error: previous declaration of 'elf_read_wine_loader_dbg_info' elf module.c:71: warning: '__wine_dbch___default' defined but not used make[2]: *** [elf_module.o] Error 1 make[1]: *** [dbghelp] Error 2 make: *** [dlls] Error 2

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RE: CryptoAPI
by Juan Lang April 13, 2004

April 13, 2004

Hi Robert, Robert wrote: > It depends on which part you are trying to implement. > For the Certificate Store functions I would recommend > implementing the "OID support functions" first, I was taking a look at implementing the certificate store functions, and I was thinking (hoping?) I could avoid the OID stuff. Maybe I'm missing something, but a cert will be stored in the registry in some well-known format, and as long as Wine handles the registry I/O bit, OpenSSL ought to be able to read the certs, right? So CertOpenStore/CertEnumStore et al wouldn't need to do any asn.1 decoding, at least not from the get-go. What did I miss? --Juan __________________________________ Do you Yahoo!? Yahoo! Small Business $15K Web Design Giveaway http://promotions.yahoo.com/design_giveaway/

2 3

exec-shield workaround take 3
by Mike McCormack April 13, 2004

April 13, 2004

Hi, Here's a new patch for exec-shield. Changes against the last patch: * reserve only the area required by the PE EXE if launched from CreateProcess (else just a default slab) * pass the reserved area to wine, so wine knows about it * unmap the preloader after it is no longer used Again, comments, improvements, flames and test reports are all welcome! Mike ----------------------------------------------------------------------- Hi, This patch works around the exec-shield problems with Fedora Core. I'd be greatful if any people using Fedora core could test it out and see how it works. It should be enough to apply it to the latest CVS tip and recompile. All comments and flames accepted... /me wears his asbestos suit. Mike ChangeLog: * workaround exec-shield by reserving memory before run ld-linux.so.2 Index: dlls/kernel/process.c =================================================================== RCS file: /home/wine/wine/dlls/kernel/process.c,v retrieving revision 1.50 diff -u -r1.50 process.c --- dlls/kernel/process.c 25 Mar 2004 23:41:04 -0000 1.50 +++ dlls/kernel/process.c 11 Apr 2004 07:14:20 -0000 @@ -1055,7 +1055,8 @@ * * Build the environment of a new child process. */ -static char **build_envp( const WCHAR *envW, const WCHAR *extra_envW ) +static char **build_envp( const WCHAR *envW, const WCHAR *extra_envW, + const char *workdir, const char *unixpath ) { const WCHAR *p; char **envp; @@ -1078,7 +1079,7 @@ if (!(env = malloc( length ))) return NULL; WideCharToMultiByte( CP_UNIXCP, 0, envW, p - envW, env, length, NULL, NULL ); - count += 4; + count += 6; if ((envp = malloc( count * sizeof(*envp) ))) { @@ -1093,6 +1094,11 @@ if ((p = getenv("TMP"))) *envptr++ = alloc_env_string( "TMP=", p ); if ((p = getenv("HOME"))) *envptr++ = alloc_env_string( "HOME=", p ); if ((p = getenv("WINEPREFIX"))) *envptr++ = alloc_env_string( "WINEPREFIX=", p ); + + /* record the unix working directory */ + if (workdir) *envptr++ = alloc_env_string( "WINEWORKDIR=", workdir ); + if (unixpath) *envptr++ = alloc_env_string( "WINEPEEXEPATH=", unixpath ); + /* now put the Windows environment strings */ for (p = env; *p; p += strlen(p) + 1) { @@ -1131,7 +1137,7 @@ if (!(pid = fork())) /* child */ { char **argv = build_argv( cmdline, 0 ); - char **envp = build_envp( env, NULL ); + char **envp = build_envp( env, NULL, NULL, NULL ); close( fd[0] ); /* Reset signals that we previously set to SIG_IGN */ @@ -1166,14 +1172,8 @@ RTL_USER_PROCESS_PARAMETERS *params; UNICODE_STRING image_str, cmdline_str, desktop, title; NTSTATUS status; - WCHAR buffer[MAX_PATH]; - - if(!GetLongPathNameW( filename, buffer, MAX_PATH )) - lstrcpynW( buffer, filename, MAX_PATH ); - if(!GetFullPathNameW( buffer, MAX_PATH, buffer, NULL )) - lstrcpynW( buffer, filename, MAX_PATH ); - RtlInitUnicodeString( &image_str, buffer ); + RtlInitUnicodeString( &image_str, filename ); RtlInitUnicodeString( &cmdline_str, cmdline ); if (startup->lpDesktop) RtlInitUnicodeString( &desktop, startup->lpDesktop ); if (startup->lpTitle) RtlInitUnicodeString( &title, startup->lpTitle ); @@ -1225,6 +1225,7 @@ pid_t pid; int err; char dummy = 0; + WCHAR buffer[MAX_PATH]; if (!env) { @@ -1232,7 +1233,12 @@ extra_env = DRIVE_BuildEnv(); } - if (!(params = create_user_params( filename, cmd_line, startup ))) + if(!GetLongPathNameW( filename, buffer, MAX_PATH )) + lstrcpynW( buffer, filename, MAX_PATH ); + if(!GetFullPathNameW( buffer, MAX_PATH, buffer, NULL )) + lstrcpynW( buffer, filename, MAX_PATH ); + + if (!(params = create_user_params( buffer, cmd_line, startup ))) { if (extra_env) HeapFree( GetProcessHeap(), 0, extra_env ); return FALSE; @@ -1263,7 +1269,20 @@ if (!(pid = fork())) /* child */ { char **argv = build_argv( cmd_line, 1 ); - char **envp = build_envp( env, extra_env ); + char **envp; + CHAR unixpath[MAX_PATH]; + + unixpath[0]=0; + wine_get_unix_file_name( buffer, unixpath, MAX_PATH ); + + /* preseve the current directory, the preloader may forget it */ + if( !unixdir ) + { + char *dir = HeapAlloc( GetProcessHeap(), 0, MAX_PATH ); + getcwd( dir, MAX_PATH ); + unixdir = dir; + } + envp = build_envp( env, extra_env, unixdir, unixpath ); close( startfd[1] ); close( execfd[0] ); @@ -1275,8 +1294,6 @@ /* Reset signals that we previously set to SIG_IGN */ signal( SIGPIPE, SIG_DFL ); signal( SIGCHLD, SIG_DFL ); - - if (unixdir) chdir(unixdir); if (argv && envp) { Index: libs/wine/config.c =================================================================== RCS file: /home/wine/wine/libs/wine/config.c,v retrieving revision 1.3 diff -u -r1.3 config.c --- libs/wine/config.c 11 Nov 2003 22:21:29 -0000 1.3 +++ libs/wine/config.c 11 Apr 2004 07:14:21 -0000 @@ -243,6 +243,23 @@ return user_name; } +/* run wine binary in it's own directory, so it can find it's preloader */ +int wine_cwd_execve( const char *name, char **argv, char **envp ) +{ + char *dir, *p; + + dir = strdup( name ); + p = strrchr( dir, '/' ); + if( p ) + { + *p++ = 0; + chdir( dir ); + name = p; + } + + return execve( name, argv, envp ); +} + /* exec a wine internal binary (either the wine loader or the wine server) */ /* if name is null, default to the name of the current binary */ void wine_exec_wine_binary( const char *name, char **argv, char **envp ) @@ -257,7 +274,7 @@ argv[0] = xmalloc( sizeof(BINDIR "/") + strlen(name) ); strcpy( argv[0], BINDIR "/" ); strcat( argv[0], name ); - execve( argv[0], argv, envp ); + wine_cwd_execve( argv[0], argv, envp ); free( argv[0] ); /* now try the path of argv0 of the current binary */ @@ -266,7 +283,7 @@ argv[0] = xmalloc( strlen(argv0_path) + strlen(name) + 1 ); strcpy( argv[0], argv0_path ); strcat( argv[0], name ); - execve( argv[0], argv, envp ); + wine_cwd_execve( argv[0], argv, envp ); free( argv[0] ); } @@ -283,7 +300,7 @@ memcpy( argv[0], pos, ptr - pos ); strcpy( argv[0] + (ptr - pos), "/" ); strcat( argv[0] + (ptr - pos), name ); - execve( argv[0], argv, envp ); + wine_cwd_execve( argv[0], argv, envp ); pos = ptr; } free( argv[0] ); Index: loader/Makefile.in =================================================================== RCS file: /home/wine/wine/loader/Makefile.in,v retrieving revision 1.14 diff -u -r1.14 Makefile.in --- loader/Makefile.in 22 Nov 2003 00:08:26 -0000 1.14 +++ loader/Makefile.in 11 Apr 2004 07:14:21 -0000 @@ -23,20 +23,30 @@ LIBPTHREAD = @LIBPTHREAD@ LDEXECFLAGS = @LDEXECFLAGS@ -wine-glibc: glibc.o Makefile.in +WINELDEXECFLAGS = $(LDEXECFLAGS),--dynamic-linker=$(WINELDSO) + +WINELDSO=ld-winepreload.so + +$(WINELDSO): preload.o Makefile.in + $(CC) -nostartfiles -lc -static -Wl,"-Ttext=0x7ff81000" -o $@ $< + +preload.c: preload.h main.h + +wine-glibc: glibc.o Makefile.in $(WINELDSO) $(CC) -o $@ $(LDEXECFLAGS) glibc.o $(LIBWINE) $(LIBPORT) $(LIBPTHREAD) $(EXTRALIBS) $(LDFLAGS) -wine-kthread: $(KTHREAD_OBJS) Makefile.in - $(CC) -o $@ $(LDEXECFLAGS) $(KTHREAD_OBJS) $(LIBWINE) $(LIBPORT) $(EXTRALIBS) $(LDFLAGS) +wine-kthread: $(KTHREAD_OBJS) Makefile.in $(WINELDSO) + $(CC) -o $@ $(WINELDEXECFLAGS) $(KTHREAD_OBJS) $(LIBWINE) $(LIBPORT) $(EXTRALIBS) $(LDFLAGS) -wine-pthread: $(PTHREAD_OBJS) Makefile.in - $(CC) -o $@ $(LDEXECFLAGS) $(PTHREAD_OBJS) $(LIBWINE) $(LIBPORT) $(LIBPTHREAD) $(EXTRALIBS) $(LDFLAGS) +wine-pthread: $(PTHREAD_OBJS) Makefile.in $(WINELDSO) + $(CC) -o $@ $(WINELDEXECFLAGS) $(PTHREAD_OBJS) $(LIBWINE) $(LIBPORT) $(LIBPTHREAD) $(EXTRALIBS) $(LDFLAGS) $(MODULE): $(MAIN_BINARY) $(RM) $(MODULE) && $(LN_S) $(MAIN_BINARY) $(MODULE) install:: $(WINE_BINARIES) $(MKINSTALLDIRS) $(bindir) + $(INSTALL_PROGRAM) $(WINELDSO) $(bindir); \ for f in $(WINE_BINARIES); do \ if [ "$(MAIN_BINARY)" = "$$f" ]; \ then $(INSTALL_PROGRAM) $$f $(bindir)/$(MODULE); \ @@ -48,6 +58,6 @@ $(RM) $(WINE_BINARIES:%=$(bindir)/%) $(bindir)/$(MODULE) clean:: - $(RM) $(WINE_BINARIES) $(MODULE) + $(RM) $(WINE_BINARIES) $(MODULE) $(WINELDSO) ### Dependencies: Index: loader/glibc.c =================================================================== RCS file: /home/wine/wine/loader/glibc.c,v retrieving revision 1.3 diff -u -r1.3 glibc.c --- loader/glibc.c 20 Feb 2004 20:19:23 -0000 1.3 +++ loader/glibc.c 11 Apr 2004 07:14:21 -0000 @@ -75,6 +75,17 @@ { const char *loader = getenv( "WINELOADER" ); const char *threads = get_threading(); + char cwd[MAX_PATH], *cwd_var; + + if( !getcwd( cwd, sizeof cwd ) ) + { + fprintf( stderr, "wine: could get current directory\n" ); + exit(1); + } + cwd_var = xmalloc( sizeof("WINEWORKDIR=") + strlen(cwd) ); + strcpy( cwd_var, "WINEWORKDIR=" ); + strcat( cwd_var, cwd ); + putenv( cwd_var ); if (loader) { @@ -86,6 +97,9 @@ new_name = xmalloc( (path - loader) + strlen(threads) + 1 ); memcpy( new_name, loader, path - loader ); + new_name[ path - loader ] = 0; + if( new_name[0] ) + chdir( new_name ); strcpy( new_name + (path - loader), threads ); /* update WINELOADER with the new name */ Index: loader/main.c =================================================================== RCS file: /home/wine/wine/loader/main.c,v retrieving revision 1.90 diff -u -r1.90 main.c --- loader/main.c 20 Jan 2004 00:28:01 -0000 1.90 +++ loader/main.c 11 Apr 2004 07:14:21 -0000 @@ -20,19 +20,44 @@ #include <stdio.h> #include <stdlib.h> +#include <unistd.h> +#include <sys/mman.h> #include "wine/library.h" +#include "main.h" + +/* this variable is set by the wine-specific shared object loader */ +struct wine_preload_info *wine_preload_vars; + /********************************************************************** * main */ int main( int argc, char *argv[] ) { - char error[1024]; + char error[1024], *dir; + + if( wine_preload_vars ) + { + /* printf("vars(*%p) = %p -> (%p, %08x) (%p, %08x)\n", + &wine_preload_vars, wine_preload_vars, + wine_preload_vars->pe_address, + wine_preload_vars->pe_size, + wine_preload_vars->preload_base, + wine_preload_vars->preload_size ); */ + + /* let wine know which area was mapped */ + wine_set_pe_load_area(wine_preload_vars->pe_address, + wine_preload_vars->pe_size); + + /* unmap the preloader itself */ + munmap( wine_preload_vars->preload_base, + wine_preload_vars->preload_size ); + wine_preload_vars = NULL; + } -#if 0 - static char pe_load[256*1024*1024] __attribute__((aligned(4096))); - wine_set_pe_load_area( pe_load, sizeof(pe_load) ); -#endif + dir = getenv( "WINEWORKDIR" ); + if( dir ) + chdir( dir ); wine_init( argc, argv, error, sizeof(error) ); fprintf( stderr, "wine: failed to initialize: %s\n", error ); --- /dev/null 1994-07-18 08:46:18.000000000 +0900 +++ loader/main.h 2004-04-11 16:58:25.000000000 +0900 @@ -0,0 +1,8 @@ + +struct wine_preload_info +{ + void *pe_address; + size_t pe_size; + void *preload_base; + size_t preload_size; +}; --- /dev/null 1994-07-18 08:46:18.000000000 +0900 +++ loader/preload.h 2004-04-11 16:58:25.000000000 +0900 @@ -0,0 +1,51 @@ +/* + mini loader for ld.so - x86 Linux 2.4.x+ kernels only + + Copyright 2004 Mike McCormack for Codeweavers + + Copyright (C) 1995,96,97,98,99,2000,2001,2002 Free Software Foundation, Inc. + + The GNU C 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. + + The GNU C 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 the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. + */ + +#define LDSO_NAME "/lib/ld-linux.so.2" + +/* ELF definitions */ +#define ELF_PREFERRED_ADDRESS(loader, maplength, mapstartpref) (mapstartpref) +#define ELF_FIXED_ADDRESS(loader, mapstart) ((void) 0) + +#define __ELF_NATIVE_CLASS 32 +#define MAP_BASE_ADDR(l) 0 +#define MAP_COPY MAP_PRIVATE +#define ANONFD -1 + +#define ElfW(type) _ElfW (Elf, __ELF_NATIVE_CLASS, type) +#define _ElfW(e,w,t) _ElfW_1 (e, w, _##t) +#define _ElfW_1(e,w,t) e##w##t + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/mman.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> + +#define GL(x) x + +extern unsigned int GL(dl_pagesize); + --- /dev/null 1994-07-18 08:46:18.000000000 +0900 +++ loader/preload.c 2004-04-11 16:58:25.000000000 +0900 @@ -0,0 +1,727 @@ +/* + mini loader for ld.so - x86 Linux 2.4.x+ kernels only + + Copyright 2004 Mike McCormack for Codeweavers + + Copyright (C) 1995,96,97,98,99,2000,2001,2002 Free Software Foundation, Inc. + + The GNU C 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. + + The GNU C 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 the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. + */ + +/* + * Design notes + * + * The goal of this program is to be a workaround for exec-shield, as used + * by the Linux kernel distributed with Fedora Core and other distros. + * + * To do this, we implement our own shared object loader that reserves memory + * that is important to Wine, and then loads the the standard shared object + * loader (ELF interpreter), usually ld-linux.so.2 + * + * This program will be invoked by linking it as the shared object loader + * using the link time flags --shared-loader=ld-winepreload.so . Since we + * are not using an absolute path, an executable using this shared object + * loader must be invoked from the directory that contains this loader. + * + * We will try to set up the stack an memory area so that the program that + * loads after us (eg. the wine binary) never knows we were here, except that + * areas of memory it needs are already magically reserved. + * + * The following memory areas are important to Wine: + * 0x00000000 - the DOS area + * 0x00400000 - the standard Win32 load address + * 0x65430000 - the shared heap + * + * If this program is used as the shared object loader. the only difference + * that the loaded programs should see is that this loader will be mapped + * into memory when it starts. + * + * Limitations: + * * using a non-absolution path for the shared object loader is not standard + */ + +/* + * References (things I consulted to understand how ELF loading works): + * + * glibc 2.3.2 elf/dl-load.c + * http://www.gnu.org/directory/glibc.html + * + * Linux 2.6.4 fs/binfmt_elf.c + * ftp://ftp.kernel.org/pub/linux/kernel/v2.6/linux-2.6.4.tar.bz2 + * + * Userland exec, by <grugq(a)hcunix.net> + * http://cert.uni-stuttgart.de/archive/bugtraq/2004/01/msg00002.html + * + * The ELF specification: + * http://www.linuxbase.org/spec/booksets/LSB-Embedded/LSB-Embedded/book387.ht… + */ + +#include "preload.h" +#include "main.h" +#include <elf.h> + +/* the following headers are needed to get the definition for IMAGE_NT_HEADERS */ +#include <stdarg.h> +#include "windef.h" +#include "winbase.h" + +/* debugging */ +#undef DUMP_SEGMENTS +#undef DUMP_ARG +#undef DUMP_AUX_INFO +#undef DUMP_SYMS + +unsigned int GL(dl_pagesize) = 0x0000; +extern const unsigned char _end[]; + +struct link_map { + ElfW(Addr) l_addr; + ElfW(Dyn) *l_ld; + const ElfW(Phdr) *l_phdr; + ElfW(Addr) l_entry; + ElfW(Half) l_ldnum; + ElfW(Half) l_phnum; + ElfW(Addr) l_map_start, l_map_end; +}; + +/* + * wld_printf - just the basics + * + * %x prints a hex number + * %s prints a string + */ +void wld_sprintf(char *str, char *fmt, int *args ) +{ + char *p = fmt; + + while( *p ) + { + if( *p == '%' ) + { + p++; + if( *p == 'x' ) + { + int ch, i, x = *++args; + for(i=7; i>=0; i--) + { + ch = (x>>(i*4))&0xf; + ch += '0'; + if(ch>'9') + ch+=('A'-10-'0'); + *str++ = ch; + } + } + else if( *p == 's' ) + { + char *s = (char*)*++args; + while(*s) + *str++ = *s++; + } + else if( *p == 0 ) + break; + p++; + } + *str++ = *p++; + } + *str = 0; +} + +int wld_strlen(char *str) +{ + int n = 0; + while( str[n] ) + n++; + return n; +} + +void wld_printf(char *fmt, ... ) +{ + char buffer[100]; + int n; + + buffer[0]=0; + wld_sprintf(buffer, fmt, (int*)&fmt ); + n = wld_strlen( buffer ); + write(2, buffer, n); +} + +void wld_strncpy(char *dest, char *src, int count ) +{ + while( (*dest++ = *src++) && --count ) + ; + *dest = 0; +} + +void wld_memset( unsigned char *buf, int val, size_t len ) +{ + while( len-- ) + *buf++=val; +} + +#ifdef DUMP_AUX_INFO +/* + * Dump interesting bits of the ELF auxv_t structure that is passed + * as the 4th parameter to the _start function + */ +static void wld_dump_auxilary( ElfW(auxv_t) *av ) +{ + for ( ; av->a_type != AT_NULL; av++) + switch (av->a_type) + { + case AT_PAGESZ: + wld_printf("AT_PAGESZ = %x\n",av->a_un.a_val); + break; + case AT_PHDR: + wld_printf("AT_PHDR = %x\n",av->a_un.a_ptr); + break; + case AT_PHNUM: + wld_printf("AT_PHNUM = %x\n",av->a_un.a_val); + break; + case AT_ENTRY: + wld_printf("AT_ENTRY = %x\n",av->a_un.a_val); + break; + case AT_BASE: + wld_printf("AT_BASE = %x\n",av->a_un.a_val); + break; + } +} +#endif + +/* + * wld_set_auxilary + * + * Set a field of the auxillary structure + */ +void wld_set_auxilary( ElfW(auxv_t) *av, int type, long int val ) +{ + for ( ; av->a_type != AT_NULL; av++) + if( av->a_type == type ) + av->a_un.a_val = val; +} + +/* + * wld_get_auxilary + * + * Get a field of the auxillary structure + */ +int wld_get_auxilary( ElfW(auxv_t) *av, int type, int *val ) +{ + for ( ; av->a_type != AT_NULL; av++) + if( av->a_type == type ) + { + *val = av->a_un.a_val; + return 1; + } + return 0; +} + +/* + * wld_map_so + * + * modelled after _dl_map_object_from_fd() from glibc-2.3.1/elf/dl-load.c + * + * This function maps the segments from an ELF object, and optionally + * stores information about the mapping into the auxv_t structure. + */ +void* wld_map_so( int fd, void* buf, size_t buflen, struct link_map *l) +{ + ElfW(Ehdr) *header = buf; + ElfW(Phdr) *phdr, *ph; + /* Scan the program header table, collecting its load commands. */ + struct loadcmd + { + ElfW(Addr) mapstart, mapend, dataend, allocend; + off_t mapoff; + int prot; + } loadcmds[header->e_phnum], *c; + size_t nloadcmds = 0, maplength; + + header = buf; + phdr = (void*) (((unsigned char*)buf) + header->e_phoff); + + if( header->e_ident[0] != 0x7f && + header->e_ident[0] != 'E' && + header->e_ident[0] != 'L' && + header->e_ident[0] != 'F' ) + { + wld_printf("Not an ELF binary... don't know how to load it\n"); + return NULL; + } + + if( header->e_machine != EM_386 ) + { + wld_printf("Not an i386 ELF binary... don't know how to load it\n"); + return NULL; + } + + maplength = header->e_phnum * sizeof (ElfW(Phdr)); + if (header->e_phoff + maplength > (size_t) buflen) + { + wld_printf("oops... not enough space for ELF headers\n"); + exit(1); + } + + l->l_ld = 0; + l->l_addr = 0; + l->l_phnum = header->e_phnum; + l->l_entry = header->e_entry; + + for (ph = phdr; ph < &phdr[l->l_phnum]; ++ph) + { + +#ifdef DUMP_SEGMENTS + wld_printf( "ph = %x\n", ph ); + wld_printf( " p_type = %x\n", ph->p_type ); + wld_printf( " p_flags = %x\n", ph->p_flags ); + wld_printf( " p_offset = %x\n", ph->p_offset ); + wld_printf( " p_vaddr = %x\n", ph->p_vaddr ); + wld_printf( " p_paddr = %x\n", ph->p_paddr ); + wld_printf( " p_filesz = %x\n", ph->p_filesz ); + wld_printf( " p_memsz = %x\n", ph->p_memsz ); + wld_printf( " p_align = %x\n", ph->p_align ); +#endif + + switch (ph->p_type) + { + /* These entries tell us where to find things once the file's + segments are mapped in. We record the addresses it says + verbatim, and later correct for the run-time load address. */ + case PT_DYNAMIC: + l->l_ld = (void *) ph->p_vaddr; + l->l_ldnum = ph->p_memsz / sizeof (Elf32_Dyn); + break; + + case PT_PHDR: + l->l_phdr = (void *) ph->p_vaddr; + break; + + case PT_TLS: + /* + * We don't need to set anything up because we're + * emulating the kernel, not ld-linux.so.2 + * The ELF loader will set up the TLS data itself. + */ + break; + + case PT_LOAD: + { + if ((ph->p_align & (GL(dl_pagesize) - 1)) != 0) + { + wld_printf("ELF load command alignment not page-aligned"); + return NULL; + } + if (((ph->p_vaddr - ph->p_offset) & (ph->p_align - 1)) != 0) + { + wld_printf("ELF load command address/offset not properly aligned"); + return NULL; + } + + c = &loadcmds[nloadcmds++]; + c->mapstart = ph->p_vaddr & ~(ph->p_align - 1); + c->mapend = ((ph->p_vaddr + ph->p_filesz + GL(dl_pagesize) - 1) + & ~(GL(dl_pagesize) - 1)); + c->dataend = ph->p_vaddr + ph->p_filesz; + c->allocend = ph->p_vaddr + ph->p_memsz; + c->mapoff = ph->p_offset & ~(ph->p_align - 1); + + c->prot = 0; + if (ph->p_flags & PF_R) + c->prot |= PROT_READ; + if (ph->p_flags & PF_W) + c->prot |= PROT_WRITE; + if (ph->p_flags & PF_X) + c->prot |= PROT_EXEC; + } + break; + + case PT_INTERP: + break; + + case PT_SHLIB: + case PT_NOTE: + case PT_GNU_EH_FRAME: + case 0x6474e551: /* FIXME: what is this? */ + break; + + default: + wld_printf("warning: unknown header type %x\n", ph->p_type); + break; + } + } + + /* Now process the load commands and map segments into memory. */ + c = loadcmds; + + /* Length of the sections to be loaded. */ + maplength = loadcmds[nloadcmds - 1].allocend - c->mapstart; + + if( header->e_type == ET_DYN ) + { + ElfW(Addr) mappref; + mappref = (ELF_PREFERRED_ADDRESS (loader, maplength, c->mapstart) + - MAP_BASE_ADDR (l)); + + /* Remember which part of the address space this object uses. */ + l->l_map_start = (ElfW(Addr)) mmap ((void *) mappref, maplength, + c->prot, MAP_COPY | MAP_FILE, + fd, c->mapoff); + /* wld_printf("set : offset = %x\n", c->mapoff); */ + /* wld_printf("l->l_map_start = %x\n", l->l_map_start); */ + + l->l_map_end = l->l_map_start + maplength; + l->l_addr = l->l_map_start - c->mapstart; + + mprotect ((caddr_t) (l->l_addr + c->mapend), + loadcmds[nloadcmds - 1].allocend - c->mapend, + PROT_NONE); + goto postmap; + } + else + { + ELF_FIXED_ADDRESS (loader, c->mapstart); + } + + /* Remember which part of the address space this object uses. */ + l->l_map_start = c->mapstart + l->l_addr; + l->l_map_end = l->l_map_start + maplength; + + while (c < &loadcmds[nloadcmds]) + { + if (c->mapend > c->mapstart) + /* Map the segment contents from the file. */ + mmap ((void *) (l->l_addr + c->mapstart), + c->mapend - c->mapstart, c->prot, + MAP_FIXED | MAP_COPY | MAP_FILE, fd, c->mapoff); + + postmap: + if (l->l_phdr == 0 + && (ElfW(Off)) c->mapoff <= header->e_phoff + && ((size_t) (c->mapend - c->mapstart + c->mapoff) + >= header->e_phoff + header->e_phnum * sizeof (ElfW(Phdr)))) + /* Found the program header in this segment. */ + l->l_phdr = (void *) (c->mapstart + header->e_phoff - c->mapoff); + + if (c->allocend > c->dataend) + { + /* Extra zero pages should appear at the end of this segment, + after the data mapped from the file. */ + ElfW(Addr) zero, zeroend, zeropage; + + zero = l->l_addr + c->dataend; + zeroend = l->l_addr + c->allocend; + zeropage = ((zero + GL(dl_pagesize) - 1) + & ~(GL(dl_pagesize) - 1)); + + /* + * This is different to the dl-load load... + * ld-linux.so.2 relies on the whole page being zero'ed + */ + zeroend = (zeroend +GL(dl_pagesize) - 1) & ~(GL(dl_pagesize) - 1); + + if (zeroend < zeropage) + { + /* All the extra data is in the last page of the segment. + We can just zero it. */ + zeropage = zeroend; + } + + if (zeropage > zero) + { + /* Zero the final part of the last page of the segment. */ + if ((c->prot & PROT_WRITE) == 0) + { + /* Dag nab it. */ + mprotect ((caddr_t) (zero & ~(GL(dl_pagesize) - 1)), + GL(dl_pagesize), + c->prot|PROT_WRITE); + } + memset ((void *) zero, '\0', zeropage - zero); + if ((c->prot & PROT_WRITE) == 0) + mprotect ((caddr_t) (zero & ~(GL(dl_pagesize) - 1)), + GL(dl_pagesize), c->prot); + } + + if (zeroend > zeropage) + { + /* Map the remaining zero pages in from the zero fill FD. */ + caddr_t mapat; + mapat = mmap ((caddr_t) zeropage, zeroend - zeropage, + c->prot, MAP_ANON|MAP_PRIVATE|MAP_FIXED, + ANONFD, 0); + } + } + + ++c; + } + + if (l->l_phdr == NULL) + { + wld_printf("no program header\n"); + exit(1); + } + + (ElfW(Addr)) l->l_phdr += l->l_addr; + (ElfW(Addr)) l->l_entry += l->l_addr; + + return (void*)l->l_entry; +} + +#define ROUND_SIZE(addr,size) \ + (((int)(size) + ((int)(addr) & page_mask) + page_mask) & ~page_mask) + +/* + * wld_reserve_wine_memory + * + * This is the reason we are here. + * We want to reserve address space so that the kernel doesn't + * map stuff there. We do this by getting in first before + * anything else is mapped (except this program) and reserve + * the memory we want. + */ +void wld_reserve_wine_memory( char *pe_file, void **base, size_t *size ) +{ + IMAGE_DOS_HEADER dos; + IMAGE_NT_HEADERS nt; + int unix_fd, page_mask = GL(dl_pagesize) - 1; + + if( !pe_file ) + return; + + unix_fd = open( pe_file, O_RDONLY, 0); + if( unix_fd < 0 ) + return; + + /* + * The following code is borrowed from + * get_image_params() in wine/server/mapping.c + */ + if (read( unix_fd, &dos, sizeof(dos) ) != sizeof(dos)) goto error; + if (dos.e_magic != IMAGE_DOS_SIGNATURE) goto error; + if (lseek( unix_fd, dos.e_lfanew, SEEK_SET ) == -1) goto error; + + if (read( unix_fd, &nt.Signature, sizeof(nt.Signature) ) != sizeof(nt.Signature)) goto error; + if (nt.Signature != IMAGE_NT_SIGNATURE) goto error; + if (read( unix_fd, &nt.FileHeader, sizeof(nt.FileHeader) ) != sizeof(nt.FileHeader)) goto error; + /* zero out Optional header in the case it's not present or partial */ + memset(&nt.OptionalHeader, 0, sizeof(nt.OptionalHeader)); + if (read( unix_fd, &nt.OptionalHeader, nt.FileHeader.SizeOfOptionalHeader) != nt.FileHeader.SizeOfOptionalHeader) goto error; + + *size = ROUND_SIZE( 0, nt.OptionalHeader.SizeOfImage ); + *base = (void *)nt.OptionalHeader.ImageBase; + +#ifdef DUMP_PERESERVE + wld_printf( "parsed PE image... base %x size %x\n", *base, *size ); +#endif + +error: + close( unix_fd ); +} + +/* + * Find a symbol in the symbol table of the executable loaded + */ +void *wld_find_symbol( const ElfW(Phdr) *phdr, int num, char *var ) +{ + const ElfW(Dyn) *dyn = NULL; + void *ptr = NULL; + const ElfW(Phdr) *ph; + const ElfW(Sym) *symtab = NULL; + const char *strings = NULL; + + /* check the values */ +#ifdef DUMP_SYMS + wld_printf("%x %x\n", phdr, num ); +#endif + if( ( phdr == NULL ) || ( num == 0 ) ) + { + wld_printf("could not find PT_DYNAMIC header entry\n"); + return NULL; + } + + /* parse the (already loaded) ELF executable's header */ + for (ph = phdr; ph < &phdr[num]; ++ph) + { + if( PT_DYNAMIC == ph->p_type ) + { + dyn = (void *) ph->p_vaddr; + num = ph->p_memsz / sizeof (Elf32_Dyn); + break; + } + } + if( !dyn ) + { + wld_printf("No PT_DYNAMIC section\n"); + return ptr; + } + + while( dyn->d_tag ) + { + if( dyn->d_tag == DT_STRTAB ) + strings = (const char*) dyn->d_un.d_ptr; + if( dyn->d_tag == DT_SYMTAB ) + symtab = (const ElfW(Sym) *)dyn->d_un.d_ptr; +#ifdef DUMP_SYMS + wld_printf("%x %x\n", dyn->d_tag, dyn->d_un.d_ptr ); +#endif + dyn++; + } + + if( (!symtab) || (!strings) ) + { + wld_printf("No symbol table found\n"); + return ptr; + } + + /* FIXME: this crashes if it doesn't find the symbol we want */ + do + { + if( ( ELF32_ST_BIND(symtab->st_info) == STT_OBJECT ) && + ( 0 == strcmp( strings+symtab->st_name, var ) ) ) + { + ptr = (void*)symtab->st_value; + break; + } + symtab++; + } + while( symtab->st_name ); + +#ifdef DUMP_SYMS + wld_printf("Found %s -> %x\n", strings+symtab->st_name, symtab->st_value ); +#endif + + return ptr; +} + +/* + * wld_start + * + * Repeat the actions the kernel would do when loading a dynamically linked .so + * Load the ELF interperter ld-linux.so and then binary itself. + * + * Note, we assume that the binary is a dynamically linked ELF shared object + * and that ld-linux.so is its ELF interpreter. + */ +void* wld_start( int argc ) +{ + int fd, phnum = 0; + unsigned char buf[0x800]; + void *start; + char **argv = (char**) &argc, **p, *pe_file = NULL; + struct link_map map; + ElfW(auxv_t)* av; + ElfW(Phdr) *elf_phdr = NULL; + struct wine_preload_info **wine_preload_vars; + static struct wine_preload_info vars; + + memset( &map, 0, sizeof map ); + + /* skip over the parameters */ + p = ++argv; +#ifdef DUMP_ARG + { + int i; + for( i = 0; i<argc; i++ ) + wld_printf("argv[%x] = %s\n", i, *p++); + if(*p++) + wld_printf("argv[argc] not NULL!!\n"); + } +#else + p+=(argc+1); +#endif + + /* skip over the environment, find the name of the PE file */ + while( *p ) + { + const char pefile[] = "WINEPEEXEPATH="; + if( 0 == memcmp( pefile, *p, sizeof pefile - 1 ) ) + pe_file = (*p) + sizeof pefile - 1 ; + p++; + } + + av = (ElfW(auxv_t)*) (p+1); + wld_get_auxilary( av, AT_PAGESZ, &dl_pagesize ); +#ifdef DUMP_AUX_INFO + wld_dump_auxilary( av ); +#endif + + /* reserve memory that Wine needs */ + vars.pe_size = 0x01000000; + vars.pe_address = (void*)0x00400000; + wld_reserve_wine_memory( pe_file, &vars.pe_address, &vars.pe_size ); + mmap( vars.pe_address, vars.pe_size, PROT_NONE, + MAP_FIXED|MAP_PRIVATE|MAP_ANON, -1, 0); + + /* load the original dynamic loader itself */ + fd = open( LDSO_NAME, O_RDONLY, 0); + if( fd < 0 ) + { + wld_printf( "error: fd = %x\n", fd); + exit(1); + } + read( fd, buf, sizeof buf ); + start = wld_map_so( fd, buf, sizeof buf, &map ); + if( !start ) + exit(0); + close( fd ); + + /* + * Pass information to the wine loader in a static variable + * so it doesn't get destroyed after we leave this stack frame + */ + wld_get_auxilary( av, AT_PHDR, (int*)&elf_phdr ); + wld_get_auxilary( av, AT_PHNUM, (int*)&phnum ); + wine_preload_vars = wld_find_symbol( elf_phdr, phnum, "wine_preload_vars" ); + if( wine_preload_vars ) + { + unsigned char *base = (void*)0x7ff81000; /* FIXME - define properly */ + vars.preload_base = (void*) base; + vars.preload_size = (size_t) (_end - base); + *wine_preload_vars = &vars; + } + + wld_set_auxilary( av, AT_BASE, map.l_addr ); + +#ifdef DUMP_AUX_INFO + wld_printf("New auxillary info:\n"); + wld_dump_auxilary( av ); + wld_printf("jumping to %x\n", start); +#endif + + return start; +} + +/* + * The _start function is the entry and exit point of this program + * + * It calls wld_start, passing a pointer to the args it receives + * then jumps to the address wld_start returns after removing the + * first argv[] value, and decrementing argc + */ +void _start(void); +__asm ( + ".align 4\n" + "\t.global _start\n" + "\t.type _start,@function\n" +"_start:\n" + "\tcall wld_start\n" + "\tpush %eax\n" + "\txor %eax,%eax\n" + "\txor %ebx,%ebx\n" + "\txor %ecx,%ecx\n" + "\txor %edx,%edx\n" + "\tret\n" +); +

2 6

RE: Handling dialog messages for non-template based dialogs
by Santosh Siddheshwar April 13, 2004

April 13, 2004

Hi, I didnt get the second point that you mention Another one might be that WM_CREATE must be always passed to DEFDLG_Proc regardless of what result an application returned to DefDlgProc16/A/W. Regards Santosh Siddheshwar > -----Original Message----- > From: Dmitry Timoshkov [SMTP:dmitry(a)baikal.ru] > Sent: Tuesday, April 13, 2004 5:46 PM > To: Robert Shearman; wine-devel(a)winehq.org > Cc: santosh.s(a)sonata-software.com > Subject: Re: Handling dialog messages for non-template based dialogs > > "Robert Shearman" <R.J.Shearman(a)warwick.ac.uk> wrote: > > > > + if (!(dlgInfo = HeapAlloc( GetProcessHeap(), 0, > > sizeof(*dlgInfo) ))) return 0; > > > > Minor point, but you probably want to return -1 here to say that window > > creation failed. > > Good catch. Another one might be that WM_CREATE must be always > passed to DEFDLG_Proc regardless of what result an application > returned to DefDlgProc16/A/W. > > -- > Dmitry. ********************************************************************* Disclaimer: The information in this e-mail and any attachments is confidential / privileged. It is intended solely for the addressee or addressees. If you are not the addressee indicated in this message, you may not copy or deliver this message to anyone. In such case, you should destroy this message and kindly notify the sender by reply email. Please advise immediately if you or your employer does not consent to Internet email for messages of this kind. *********************************************************************

2 1

RE: Handling dialog messages for non-template based dialogs
by Robert Shearman April 13, 2004

April 13, 2004

Santosh Siddheshwar wrote: > > Change Log: > windows/defdlg.c - Added code for allocating DIALOGINFO structure and > storing it as an attribute of the window > windows/dialog.c - Removed code for allocating DIALOGINFO structure and > moved initialization of DIALOGINFO structure > to after CreateWindowEx has been called. > <<patch.diff>> > > diff -urN wine-20040408/windows/defdlg.c wine-bin/windows/defdlg.c > --- wine-20040408/windows/defdlg.c 2003-09-06 04:45:40.000000000 +0530 > +++ wine-bin/windows/defdlg.c 2004-04-13 11:53:02.000000000 +0530 > @@ -168,6 +168,27 @@ > { > switch(msg) > { > + case WM_CREATE: > + { > + /* Allocate memory for DIALOGINFO structure and store in DWL_DIALOGINFO > + structure. Also flag the window as a dialog type */ > + WND* wndPtr; > + DIALOGINFO* dlgInfo; > + if (!(dlgInfo = HeapAlloc( GetProcessHeap(), 0, sizeof(*dlgInfo) ))) return 0; Minor point, but you probably want to return -1 here to say that window creation failed. > + dlgInfo->hwndFocus = 0; > + dlgInfo->hUserFont = 0; > + dlgInfo->hMenu = 0; > + dlgInfo->xBaseUnit = 0; > + dlgInfo->yBaseUnit = 0; Rob

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