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wine-winehq
Commit b1abca8a authored by Alexandre Julliard's avatar Alexandre Julliard
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Initial version of the Wine preloader, used to reserve memory

areas at startup. Based on the work of Mike McCormack.
parent ed8a41c7
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Showing with 131 additions and 47 deletions
configure
View file @ b1abca8a
......@@ -14180,31 +14180,44 @@ echo "${ECHO_T}$ac_cv_c_export_dynamic" >&6
case $host_cpu in
*i[3456789]86*)
echo "$as_me:$LINENO: checking whether we can relocate the executable to 0x00110000" >&5
echo $ECHO_N "checking whether we can relocate the executable to 0x00110000... $ECHO_C" >&6
echo "$as_me:$LINENO: checking whether we can relocate the executable to 0x77f00000" >&5
echo $ECHO_N "checking whether we can relocate the executable to 0x77f00000... $ECHO_C" >&6
if test "${ac_cv_ld_reloc_exec+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wl,--section-start,.interp=0x00110400"
if test "$cross_compiling" = yes; then
ac_cv_ld_reloc_exec="no"
else
cat >conftest.$ac_ext <<_ACEOF
ac_wine_try_cflags_saved=$CFLAGS
CFLAGS="$CFLAGS -Wl,--section-start,.interp=0x77f00400"
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
#include <unistd.h>
int main() { return (sbrk(32*1024*1024) == (void *)-1); }
int
main ()
{
;
return 0;
}
_ACEOF
rm -f conftest$ac_exeext
rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
(eval $ac_link) 2>&5
(eval $ac_link) 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); } && { ac_try='./conftest$ac_exeext'
(exit $ac_status); } &&
{ ac_try='test -z "$ac_c_werror_flag" || test ! -s conftest.err'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
{ ac_try='test -s conftest$ac_exeext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
......@@ -14212,22 +14225,20 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
(exit $ac_status); }; }; then
ac_cv_ld_reloc_exec="yes"
else
echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
( exit $ac_status )
ac_cv_ld_reloc_exec="no"
fi
rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
CFLAGS="$saved_CFLAGS"
rm -f conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
CFLAGS=$ac_wine_try_cflags_saved
fi
echo "$as_me:$LINENO: result: $ac_cv_ld_reloc_exec" >&5
echo "${ECHO_T}$ac_cv_ld_reloc_exec" >&6
if test "$ac_cv_ld_reloc_exec" = "yes"
then
LDEXECFLAGS="$LDEXECFLAGS -Wl,--section-start,.interp=0x00110400"
LDEXECFLAGS="$LDEXECFLAGS -Wl,--section-start,.interp=0x77f00400"
fi
;;
esac
......@@ -14528,7 +14539,7 @@ esac
case $host_os in
linux*)
WINE_BINARIES="wine-glibc wine-kthread wine-pthread"
WINE_BINARIES="wine-glibc wine-kthread wine-pthread wine-preloader"
MAIN_BINARY="wine-glibc"
......
configure.ac
View file @ b1abca8a
......@@ -905,16 +905,12 @@ case $host_os in
case $host_cpu in
*i[[3456789]]86*)
AC_CACHE_CHECK([whether we can relocate the executable to 0x00110000], ac_cv_ld_reloc_exec,
[saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wl,--section-start,.interp=0x00110400"
AC_TRY_RUN([#include <unistd.h>
int main() { return (sbrk(32*1024*1024) == (void *)-1); }],
ac_cv_ld_reloc_exec="yes", ac_cv_ld_reloc_exec="no", ac_cv_ld_reloc_exec="no")
CFLAGS="$saved_CFLAGS"])
AC_CACHE_CHECK([whether we can relocate the executable to 0x77f00000], ac_cv_ld_reloc_exec,
[WINE_TRY_CFLAGS([-Wl,--section-start,.interp=0x77f00400],
ac_cv_ld_reloc_exec="yes", ac_cv_ld_reloc_exec="no")])
if test "$ac_cv_ld_reloc_exec" = "yes"
then
LDEXECFLAGS="$LDEXECFLAGS -Wl,--section-start,.interp=0x00110400"
LDEXECFLAGS="$LDEXECFLAGS -Wl,--section-start,.interp=0x77f00400"
fi
;;
esac
......@@ -980,7 +976,7 @@ esac
case $host_os in
linux*)
AC_SUBST(WINE_BINARIES,"wine-glibc wine-kthread wine-pthread")
AC_SUBST(WINE_BINARIES,"wine-glibc wine-kthread wine-pthread wine-preloader")
AC_SUBST(MAIN_BINARY,"wine-glibc")
;;
*)
......
dlls/kernel/process.c
View file @ b1abca8a
......@@ -1462,10 +1462,10 @@ static BOOL create_process( HANDLE hFile, LPCWSTR filename, LPWSTR cmd_line, LPW
if (argv && envp)
{
/* first, try for a WINELOADER environment variable */
argv[0] = getenv("WINELOADER");
if (argv[0]) execve( argv[0], argv, envp );
const char *loader = getenv("WINELOADER");
if (loader) wine_exec_wine_binary( loader, argv, envp, TRUE );
/* now use the standard search strategy */
wine_exec_wine_binary( NULL, argv, envp );
wine_exec_wine_binary( NULL, argv, envp, TRUE );
}
err = errno;
write( execfd[1], &err, sizeof(err) );
......
dlls/ntdll/server.c
View file @ b1abca8a
......@@ -512,7 +512,7 @@ static void start_server( const char *oldcwd )
" specified in the WINESERVER environment variable", p );
}
/* now use the standard search strategy */
wine_exec_wine_binary( argv[0], argv, NULL );
wine_exec_wine_binary( argv[0], argv, NULL, FALSE );
fatal_error( "could not exec wineserver\n" );
}
waitpid( pid, &status, 0 );
......@@ -703,7 +703,7 @@ static void create_config_dir(void)
argv[2] = "--prefix";
argv[3] = tmp_dir;
argv[4] = NULL;
wine_exec_wine_binary( argv[0], (char **)argv, NULL );
wine_exec_wine_binary( argv[0], (char **)argv, NULL, FALSE );
rmdir( tmp_dir );
fatal_perror( "could not exec wineprefixcreate" );
}
......
include/wine/library.h
View file @ b1abca8a
......@@ -33,7 +33,7 @@ extern const char *wine_get_config_dir(void);
extern const char *wine_get_server_dir(void);
extern const char *wine_get_user_name(void);
extern void wine_init_argv0_path( const char *argv0 );
extern void wine_exec_wine_binary( const char *name, char **argv, char **envp );
extern void wine_exec_wine_binary( const char *name, char **argv, char **envp, int use_preloader );
/* dll loading */
......
libs/wine/config.c
View file @ b1abca8a
......@@ -271,20 +271,50 @@ const char *wine_get_user_name(void)
return user_name;
}
/* exec a binary using the preloader if requested; helper for wine_exec_wine_binary */
static void preloader_exec( char **argv, char **envp, int use_preloader )
{
#ifdef linux
if (use_preloader)
{
static const char preloader[] = "wine-preloader";
char *p, *full_name;
if (!(p = strrchr( argv[0], '/' ))) p = argv[0];
else p++;
full_name = xmalloc( p - argv[0] + sizeof(preloader) );
memcpy( full_name, argv[0], p - argv[0] );
memcpy( full_name + (p - argv[0]), preloader, sizeof(preloader) );
if (envp) execve( full_name, argv, envp );
else execv( full_name, argv );
free( full_name );
return;
}
#else
if (envp) execve( argv[0], argv, envp );
else execv( argv[0], argv );
#endif
}
/* 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 )
void wine_exec_wine_binary( const char *name, char **argv, char **envp, int use_preloader )
{
const char *path, *pos, *ptr;
if (!envp) envp = environ;
if (!name) name = argv0_name;
if (name && strchr( name, '/' ))
{
argv[0] = (char *)name;
preloader_exec( argv, envp, use_preloader );
return;
}
else if (!name) name = argv0_name;
/* first, try bin directory */
argv[0] = xmalloc( sizeof(BINDIR "/") + strlen(name) );
strcpy( argv[0], BINDIR "/" );
strcat( argv[0], name );
execve( argv[0], argv, envp );
preloader_exec( argv, envp, use_preloader );
free( argv[0] );
/* now try the path of argv0 of the current binary */
......@@ -293,7 +323,7 @@ void wine_exec_wine_binary( const char *name, char **argv, char **envp )
argv[0] = xmalloc( strlen(argv0_path) + strlen(name) + 1 );
strcpy( argv[0], argv0_path );
strcat( argv[0], name );
execve( argv[0], argv, envp );
preloader_exec( argv, envp, use_preloader );
free( argv[0] );
}
......@@ -310,7 +340,7 @@ void wine_exec_wine_binary( const char *name, char **argv, char **envp )
memcpy( argv[0], pos, ptr - pos );
strcpy( argv[0] + (ptr - pos), "/" );
strcat( argv[0] + (ptr - pos), name );
execve( argv[0], argv, envp );
preloader_exec( argv, envp, use_preloader );
pos = ptr;
}
free( argv[0] );
......
loader/.cvsignore
View file @ b1abca8a
......@@ -2,4 +2,5 @@ Makefile
wine
wine-glibc
wine-kthread
wine-preloader
wine-pthread
loader/Makefile.in
View file @ b1abca8a
......@@ -8,6 +8,7 @@ C_SRCS = \
glibc.c \
kthread.c \
main.c \
preloader.c \
pthread.c
KTHREAD_OBJS = kthread.o main.o
......@@ -24,7 +25,10 @@ LIBPTHREAD = @LIBPTHREAD@
LDEXECFLAGS = @LDEXECFLAGS@
wine-glibc: glibc.o Makefile.in
$(CC) -o $@ $(LDEXECFLAGS) glibc.o $(LIBWINE) $(LIBPORT) $(LIBPTHREAD) $(EXTRALIBS) $(LDFLAGS)
$(CC) -o $@ glibc.o $(LIBWINE) $(LIBPORT) $(LIBPTHREAD) $(EXTRALIBS) $(LDFLAGS)
wine-preloader: preloader.o Makefile.in
$(CC) -o $@ -static -nostartfiles -Wl,-Ttext=0x78000000 preloader.o $(LIBPORT) $(LDFLAGS)
wine-kthread: $(KTHREAD_OBJS) Makefile.in
$(CC) -o $@ $(LDEXECFLAGS) $(KTHREAD_OBJS) $(LIBWINE) $(LIBPORT) $(EXTRALIBS) $(LDFLAGS)
......
loader/glibc.c
View file @ b1abca8a
......@@ -93,13 +93,12 @@ int main( int argc, char *argv[] )
strcpy( new_loader, "WINELOADER=" );
strcat( new_loader, new_name );
putenv( new_loader );
argv[0] = new_name;
execv( argv[0], argv );
wine_exec_wine_binary( new_name, argv, NULL, TRUE );
}
else
{
wine_init_argv0_path( argv[0] );
wine_exec_wine_binary( threads, argv, NULL );
wine_exec_wine_binary( threads, argv, NULL, TRUE );
}
fprintf( stderr, "wine: could not exec %s\n", argv[0] );
exit(1);
......
loader/main.c
View file @ b1abca8a
......@@ -21,6 +21,10 @@
#include <stdio.h>
#include <stdlib.h>
#include "wine/library.h"
#include "main.h"
/* the preloader will set this variable */
const struct wine_preload_info *wine_main_preload_info = NULL;
/**********************************************************************
* main
......@@ -28,6 +32,14 @@
int main( int argc, char *argv[] )
{
char error[1024];
int i;
if (wine_main_preload_info)
{
for (i = 0; wine_main_preload_info[i].size; i++)
wine_mmap_add_reserved_area( wine_main_preload_info[i].addr,
wine_main_preload_info[i].size );
}
wine_init( argc, argv, error, sizeof(error) );
fprintf( stderr, "wine: failed to initialize: %s\n", error );
......
loader/main.h 0 → 100644
View file @ b1abca8a
/*
* Definitions for Wine main program
*
* Copyright 2004 Mike McCormack for Codeweavers
* Copyright 2004 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __WINE_LOADER_MAIN_H
#define __WINE_LOADER_MAIN_H
struct wine_preload_info
{
void *addr;
size_t size;
};
#endif /* __WINE_LOADER_MAIN_H */
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