986 lines
29 KiB
C
986 lines
29 KiB
C
/*
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* Win32 builtin dlls support
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*
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* Copyright 2000 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <assert.h>
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#include <ctype.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#ifdef HAVE_SYS_MMAN_H
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#include <sys/mman.h>
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#endif
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#ifdef HAVE_SYS_RESOURCE_H
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# include <sys/resource.h>
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#endif
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#define NONAMELESSUNION
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#define NONAMELESSSTRUCT
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#include "windef.h"
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#include "winbase.h"
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#include "wine/library.h"
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#ifdef __APPLE__
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#include <crt_externs.h>
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#define environ (*_NSGetEnviron())
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#include <CoreFoundation/CoreFoundation.h>
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#include <pthread.h>
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#else
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extern char **environ;
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#endif
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/* argc/argv for the Windows application */
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int __wine_main_argc = 0;
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char **__wine_main_argv = NULL;
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WCHAR **__wine_main_wargv = NULL;
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char **__wine_main_environ = NULL;
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struct dll_path_context
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{
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unsigned int index; /* current index in the dll path list */
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char *buffer; /* buffer used for storing path names */
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char *name; /* start of file name part in buffer (including leading slash) */
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int namelen; /* length of file name without .so extension */
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int win16; /* 16-bit dll search */
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};
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#define MAX_DLLS 100
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static struct
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{
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const IMAGE_NT_HEADERS *nt; /* NT header */
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const char *filename; /* DLL file name */
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} builtin_dlls[MAX_DLLS];
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static int nb_dlls;
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static const IMAGE_NT_HEADERS *main_exe;
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static load_dll_callback_t load_dll_callback;
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static const char *build_dir;
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static const char *default_dlldir;
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static const char **dll_paths;
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static unsigned int nb_dll_paths;
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static int dll_path_maxlen;
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extern void mmap_init(void);
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extern const char *get_dlldir( const char **default_dlldir );
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/* build the dll load path from the WINEDLLPATH variable */
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static void build_dll_path(void)
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{
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int len, count = 0;
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char *p, *path = getenv( "WINEDLLPATH" );
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const char *dlldir = get_dlldir( &default_dlldir );
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if (path)
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{
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/* count how many path elements we need */
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path = strdup(path);
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p = path;
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while (*p)
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{
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while (*p == ':') p++;
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if (!*p) break;
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count++;
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while (*p && *p != ':') p++;
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}
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}
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dll_paths = malloc( (count+2) * sizeof(*dll_paths) );
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nb_dll_paths = 0;
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if (dlldir)
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{
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dll_path_maxlen = strlen(dlldir);
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dll_paths[nb_dll_paths++] = dlldir;
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}
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else if ((build_dir = wine_get_build_dir()))
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{
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dll_path_maxlen = strlen(build_dir) + sizeof("/programs");
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}
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if (count)
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{
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p = path;
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while (*p)
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{
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while (*p == ':') *p++ = 0;
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if (!*p) break;
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dll_paths[nb_dll_paths] = p;
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while (*p && *p != ':') p++;
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if (p - dll_paths[nb_dll_paths] > dll_path_maxlen)
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dll_path_maxlen = p - dll_paths[nb_dll_paths];
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nb_dll_paths++;
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}
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}
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/* append default dll dir (if not empty) to path */
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if ((len = strlen(default_dlldir)) > 0)
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{
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if (len > dll_path_maxlen) dll_path_maxlen = len;
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dll_paths[nb_dll_paths++] = default_dlldir;
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}
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}
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/* check if the library is the correct architecture */
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/* only returns false for a valid library of the wrong arch */
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static int check_library_arch( int fd )
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{
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#ifdef __APPLE__
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struct /* Mach-O header */
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{
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unsigned int magic;
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unsigned int cputype;
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} header;
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if (read( fd, &header, sizeof(header) ) != sizeof(header)) return 1;
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if (header.magic != 0xfeedface) return 1;
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if (sizeof(void *) == sizeof(int)) return !(header.cputype >> 24);
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else return (header.cputype >> 24) == 1; /* CPU_ARCH_ABI64 */
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#else
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struct /* ELF header */
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{
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unsigned char magic[4];
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unsigned char class;
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unsigned char data;
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unsigned char version;
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} header;
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if (read( fd, &header, sizeof(header) ) != sizeof(header)) return 1;
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if (memcmp( header.magic, "\177ELF", 4 )) return 1;
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if (header.version != 1 /* EV_CURRENT */) return 1;
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#ifdef WORDS_BIGENDIAN
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if (header.data != 2 /* ELFDATA2MSB */) return 1;
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#else
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if (header.data != 1 /* ELFDATA2LSB */) return 1;
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#endif
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if (sizeof(void *) == sizeof(int)) return header.class == 1; /* ELFCLASS32 */
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else return header.class == 2; /* ELFCLASS64 */
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#endif
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}
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/* check if a given file can be opened */
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static inline int file_exists( const char *name )
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{
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int ret = 0;
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int fd = open( name, O_RDONLY );
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if (fd != -1)
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{
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ret = check_library_arch( fd );
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close( fd );
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}
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return ret;
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}
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static inline char *prepend( char *buffer, const char *str, size_t len )
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{
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return memcpy( buffer - len, str, len );
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}
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/* get a filename from the next entry in the dll path */
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static char *next_dll_path( struct dll_path_context *context )
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{
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unsigned int index = context->index++;
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int namelen = context->namelen;
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char *path = context->name;
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switch(index)
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{
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case 0: /* try dlls dir with subdir prefix */
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if (namelen > 4 && !memcmp( context->name + namelen - 4, ".dll", 4 )) namelen -= 4;
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if (!context->win16) path = prepend( path, context->name, namelen );
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path = prepend( path, "/dlls", sizeof("/dlls") - 1 );
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path = prepend( path, build_dir, strlen(build_dir) );
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return path;
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case 1: /* try programs dir with subdir prefix */
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if (!context->win16)
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{
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if (namelen > 4 && !memcmp( context->name + namelen - 4, ".exe", 4 )) namelen -= 4;
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path = prepend( path, context->name, namelen );
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path = prepend( path, "/programs", sizeof("/programs") - 1 );
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path = prepend( path, build_dir, strlen(build_dir) );
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return path;
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}
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context->index++;
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/* fall through */
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default:
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index -= 2;
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if (index < nb_dll_paths)
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return prepend( context->name, dll_paths[index], strlen( dll_paths[index] ));
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break;
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}
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return NULL;
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}
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/* get a filename from the first entry in the dll path */
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static char *first_dll_path( const char *name, int win16, struct dll_path_context *context )
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{
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char *p;
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int namelen = strlen( name );
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const char *ext = win16 ? "16" : ".so";
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context->buffer = malloc( dll_path_maxlen + 2 * namelen + strlen(ext) + 3 );
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context->index = build_dir ? 0 : 2; /* if no build dir skip all the build dir magic cases */
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context->name = context->buffer + dll_path_maxlen + namelen + 1;
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context->namelen = namelen + 1;
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context->win16 = win16;
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/* store the name at the end of the buffer, followed by extension */
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p = context->name;
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*p++ = '/';
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memcpy( p, name, namelen );
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strcpy( p + namelen, ext );
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return next_dll_path( context );
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}
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/* free the dll path context created by first_dll_path */
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static inline void free_dll_path( struct dll_path_context *context )
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{
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free( context->buffer );
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}
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/* open a library for a given dll, searching in the dll path
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* 'name' must be the Windows dll name (e.g. "kernel32.dll") */
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static void *dlopen_dll( const char *name, char *error, int errorsize,
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int test_only, int *exists )
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{
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struct dll_path_context context;
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char *path;
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void *ret = NULL;
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*exists = 0;
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for (path = first_dll_path( name, 0, &context ); path; path = next_dll_path( &context ))
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{
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if (!test_only && (ret = wine_dlopen( path, RTLD_NOW, error, errorsize ))) break;
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if ((*exists = file_exists( path ))) break; /* exists but cannot be loaded, return the error */
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}
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free_dll_path( &context );
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return ret;
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}
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/* adjust an array of pointers to make them into RVAs */
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static inline void fixup_rva_ptrs( void *array, BYTE *base, unsigned int count )
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{
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void **src = (void **)array;
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DWORD *dst = (DWORD *)array;
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while (count--)
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{
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*dst++ = *src ? (BYTE *)*src - base : 0;
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src++;
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}
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}
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/* fixup an array of RVAs by adding the specified delta */
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static inline void fixup_rva_dwords( DWORD *ptr, int delta, unsigned int count )
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{
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while (count--)
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{
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if (*ptr) *ptr += delta;
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ptr++;
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}
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}
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/* fixup RVAs in the import directory */
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static void fixup_imports( IMAGE_IMPORT_DESCRIPTOR *dir, BYTE *base, int delta )
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{
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UINT_PTR *ptr;
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while (dir->Name)
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{
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fixup_rva_dwords( &dir->u.OriginalFirstThunk, delta, 1 );
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fixup_rva_dwords( &dir->Name, delta, 1 );
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fixup_rva_dwords( &dir->FirstThunk, delta, 1 );
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ptr = (UINT_PTR *)(base + (dir->u.OriginalFirstThunk ? dir->u.OriginalFirstThunk : dir->FirstThunk));
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while (*ptr)
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{
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if (!(*ptr & IMAGE_ORDINAL_FLAG)) *ptr += delta;
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ptr++;
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}
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dir++;
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}
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}
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/* fixup RVAs in the export directory */
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static void fixup_exports( IMAGE_EXPORT_DIRECTORY *dir, BYTE *base, int delta )
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{
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fixup_rva_dwords( &dir->Name, delta, 1 );
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fixup_rva_dwords( &dir->AddressOfFunctions, delta, 1 );
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fixup_rva_dwords( &dir->AddressOfNames, delta, 1 );
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fixup_rva_dwords( &dir->AddressOfNameOrdinals, delta, 1 );
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fixup_rva_dwords( (DWORD *)(base + dir->AddressOfNames), delta, dir->NumberOfNames );
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fixup_rva_ptrs( (base + dir->AddressOfFunctions), base, dir->NumberOfFunctions );
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}
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/* fixup RVAs in the resource directory */
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static void fixup_resources( IMAGE_RESOURCE_DIRECTORY *dir, BYTE *root, int delta )
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{
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IMAGE_RESOURCE_DIRECTORY_ENTRY *entry;
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int i;
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entry = (IMAGE_RESOURCE_DIRECTORY_ENTRY *)(dir + 1);
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for (i = 0; i < dir->NumberOfNamedEntries + dir->NumberOfIdEntries; i++, entry++)
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{
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void *ptr = root + entry->u2.s3.OffsetToDirectory;
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if (entry->u2.s3.DataIsDirectory) fixup_resources( ptr, root, delta );
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else
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{
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IMAGE_RESOURCE_DATA_ENTRY *data = ptr;
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fixup_rva_dwords( &data->OffsetToData, delta, 1 );
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}
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}
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}
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/* map a builtin dll in memory and fixup RVAs */
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static void *map_dll( const IMAGE_NT_HEADERS *nt_descr )
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{
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#ifdef HAVE_MMAP
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IMAGE_DATA_DIRECTORY *dir;
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IMAGE_DOS_HEADER *dos;
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IMAGE_NT_HEADERS *nt;
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IMAGE_SECTION_HEADER *sec;
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BYTE *addr;
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DWORD code_start, data_start, data_end;
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const size_t page_size = getpagesize();
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const size_t page_mask = page_size - 1;
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int delta, nb_sections = 2; /* code + data */
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unsigned int i;
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size_t size = (sizeof(IMAGE_DOS_HEADER)
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+ sizeof(IMAGE_NT_HEADERS)
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+ nb_sections * sizeof(IMAGE_SECTION_HEADER));
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assert( size <= page_size );
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/* module address must be aligned on 64K boundary */
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addr = (BYTE *)((nt_descr->OptionalHeader.ImageBase + 0xffff) & ~0xffff);
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if (wine_anon_mmap( addr, page_size, PROT_READ|PROT_WRITE, MAP_FIXED ) != addr) return NULL;
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dos = (IMAGE_DOS_HEADER *)addr;
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nt = (IMAGE_NT_HEADERS *)(dos + 1);
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sec = (IMAGE_SECTION_HEADER *)(nt + 1);
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/* Build the DOS and NT headers */
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dos->e_magic = IMAGE_DOS_SIGNATURE;
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dos->e_cblp = 0x90;
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dos->e_cp = 3;
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dos->e_cparhdr = (sizeof(*dos)+0xf)/0x10;
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dos->e_minalloc = 0;
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dos->e_maxalloc = 0xffff;
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dos->e_ss = 0x0000;
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dos->e_sp = 0x00b8;
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dos->e_lfarlc = sizeof(*dos);
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dos->e_lfanew = sizeof(*dos);
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*nt = *nt_descr;
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delta = (const BYTE *)nt_descr - addr;
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code_start = page_size;
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data_start = delta & ~page_mask;
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data_end = (nt->OptionalHeader.SizeOfImage + delta + page_mask) & ~page_mask;
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fixup_rva_ptrs( &nt->OptionalHeader.AddressOfEntryPoint, addr, 1 );
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nt->FileHeader.NumberOfSections = nb_sections;
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nt->OptionalHeader.BaseOfCode = code_start;
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#ifndef _WIN64
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nt->OptionalHeader.BaseOfData = data_start;
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#endif
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nt->OptionalHeader.SizeOfCode = data_start - code_start;
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nt->OptionalHeader.SizeOfInitializedData = data_end - data_start;
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nt->OptionalHeader.SizeOfUninitializedData = 0;
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nt->OptionalHeader.SizeOfImage = data_end;
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nt->OptionalHeader.ImageBase = (ULONG_PTR)addr;
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/* Build the code section */
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memcpy( sec->Name, ".text", sizeof(".text") );
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sec->SizeOfRawData = data_start - code_start;
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sec->Misc.VirtualSize = sec->SizeOfRawData;
|
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sec->VirtualAddress = code_start;
|
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sec->PointerToRawData = code_start;
|
|
sec->Characteristics = (IMAGE_SCN_CNT_CODE | IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ);
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sec++;
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|
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/* Build the data section */
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|
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memcpy( sec->Name, ".data", sizeof(".data") );
|
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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 |
|
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IMAGE_SCN_MEM_WRITE | IMAGE_SCN_MEM_READ);
|
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sec++;
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|
|
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for (i = 0; i < nt->OptionalHeader.NumberOfRvaAndSizes; i++)
|
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fixup_rva_dwords( &nt->OptionalHeader.DataDirectory[i].VirtualAddress, delta, 1 );
|
|
|
|
/* Build the import directory */
|
|
|
|
dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_IMPORT_DIRECTORY];
|
|
if (dir->Size)
|
|
{
|
|
IMAGE_IMPORT_DESCRIPTOR *imports = (void *)(addr + dir->VirtualAddress);
|
|
fixup_imports( imports, addr, delta );
|
|
}
|
|
|
|
/* Build the resource directory */
|
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|
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dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_RESOURCE_DIRECTORY];
|
|
if (dir->Size)
|
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{
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void *ptr = (void *)(addr + dir->VirtualAddress);
|
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fixup_resources( ptr, ptr, delta );
|
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}
|
|
|
|
/* Build the export directory */
|
|
|
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dir = &nt->OptionalHeader.DataDirectory[IMAGE_FILE_EXPORT_DIRECTORY];
|
|
if (dir->Size)
|
|
{
|
|
IMAGE_EXPORT_DIRECTORY *exports = (void *)(addr + dir->VirtualAddress);
|
|
fixup_exports( exports, addr, delta );
|
|
}
|
|
return addr;
|
|
#else /* HAVE_MMAP */
|
|
return NULL;
|
|
#endif /* HAVE_MMAP */
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* __wine_get_main_environment
|
|
*
|
|
* Return an environment pointer to work around lack of environ variable.
|
|
* Only exported on Mac OS.
|
|
*/
|
|
char **__wine_get_main_environment(void)
|
|
{
|
|
return environ;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* __wine_dll_register
|
|
*
|
|
* Register a built-in DLL descriptor.
|
|
*/
|
|
void __wine_dll_register( const IMAGE_NT_HEADERS *header, const char *filename )
|
|
{
|
|
if (load_dll_callback) load_dll_callback( map_dll(header), filename );
|
|
else
|
|
{
|
|
if (!(header->FileHeader.Characteristics & IMAGE_FILE_DLL))
|
|
main_exe = header;
|
|
else
|
|
{
|
|
assert( nb_dlls < MAX_DLLS );
|
|
builtin_dlls[nb_dlls].nt = header;
|
|
builtin_dlls[nb_dlls].filename = filename;
|
|
nb_dlls++;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* wine_dll_set_callback
|
|
*
|
|
* Set the callback function for dll loading, and call it
|
|
* for all dlls that were implicitly loaded already.
|
|
*/
|
|
void wine_dll_set_callback( load_dll_callback_t load )
|
|
{
|
|
int i;
|
|
load_dll_callback = load;
|
|
for (i = 0; i < nb_dlls; i++)
|
|
{
|
|
const IMAGE_NT_HEADERS *nt = builtin_dlls[i].nt;
|
|
if (!nt) continue;
|
|
builtin_dlls[i].nt = NULL;
|
|
load_dll_callback( map_dll(nt), builtin_dlls[i].filename );
|
|
}
|
|
nb_dlls = 0;
|
|
if (main_exe) load_dll_callback( map_dll(main_exe), "" );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* wine_dll_load
|
|
*
|
|
* Load a builtin dll.
|
|
*/
|
|
void *wine_dll_load( const char *filename, char *error, int errorsize, int *file_exists )
|
|
{
|
|
int i;
|
|
|
|
/* callback must have been set already */
|
|
assert( load_dll_callback );
|
|
|
|
/* check if we have it in the list */
|
|
/* this can happen when initializing pre-loaded dlls in wine_dll_set_callback */
|
|
for (i = 0; i < nb_dlls; i++)
|
|
{
|
|
if (!builtin_dlls[i].nt) continue;
|
|
if (!strcmp( builtin_dlls[i].filename, filename ))
|
|
{
|
|
const IMAGE_NT_HEADERS *nt = builtin_dlls[i].nt;
|
|
builtin_dlls[i].nt = NULL;
|
|
load_dll_callback( map_dll(nt), builtin_dlls[i].filename );
|
|
*file_exists = 1;
|
|
return (void *)1;
|
|
}
|
|
}
|
|
return dlopen_dll( filename, error, errorsize, 0, file_exists );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* wine_dll_unload
|
|
*
|
|
* Unload a builtin dll.
|
|
*/
|
|
void wine_dll_unload( void *handle )
|
|
{
|
|
if (handle != (void *)1)
|
|
wine_dlclose( handle, NULL, 0 );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* wine_dll_load_main_exe
|
|
*
|
|
* Try to load the .so for the main exe.
|
|
*/
|
|
void *wine_dll_load_main_exe( const char *name, char *error, int errorsize,
|
|
int test_only, int *file_exists )
|
|
{
|
|
return dlopen_dll( name, error, errorsize, test_only, file_exists );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* wine_dll_enum_load_path
|
|
*
|
|
* Enumerate the dll load path.
|
|
*/
|
|
const char *wine_dll_enum_load_path( unsigned int index )
|
|
{
|
|
if (index >= nb_dll_paths) return NULL;
|
|
return dll_paths[index];
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* wine_dll_get_owner
|
|
*
|
|
* Retrieve the name of the 32-bit owner dll for a 16-bit dll.
|
|
* Return 0 if OK, -1 on error.
|
|
*/
|
|
int wine_dll_get_owner( const char *name, char *buffer, int size, int *exists )
|
|
{
|
|
int ret = -1;
|
|
char *path;
|
|
struct dll_path_context context;
|
|
|
|
*exists = 0;
|
|
|
|
for (path = first_dll_path( name, 1, &context ); path; path = next_dll_path( &context ))
|
|
{
|
|
int fd = open( path, O_RDONLY );
|
|
if (fd != -1)
|
|
{
|
|
int res = read( fd, buffer, size - 1 );
|
|
while (res > 0 && (buffer[res-1] == '\n' || buffer[res-1] == '\r')) res--;
|
|
buffer[res] = 0;
|
|
close( fd );
|
|
*exists = 1;
|
|
ret = 0;
|
|
break;
|
|
}
|
|
}
|
|
free_dll_path( &context );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* set_max_limit
|
|
*
|
|
* Set a user limit to the maximum allowed value.
|
|
*/
|
|
static void set_max_limit( int limit )
|
|
{
|
|
#ifdef HAVE_SETRLIMIT
|
|
struct rlimit rlimit;
|
|
|
|
if (!getrlimit( limit, &rlimit ))
|
|
{
|
|
rlimit.rlim_cur = rlimit.rlim_max;
|
|
if (setrlimit( limit, &rlimit ) != 0)
|
|
{
|
|
#if defined(__APPLE__) && defined(RLIMIT_NOFILE) && defined(OPEN_MAX)
|
|
/* On Leopard, setrlimit(RLIMIT_NOFILE, ...) fails on attempts to set
|
|
* rlim_cur above OPEN_MAX (even if rlim_max > OPEN_MAX). */
|
|
if (limit == RLIMIT_NOFILE && rlimit.rlim_cur > OPEN_MAX)
|
|
{
|
|
rlimit.rlim_cur = OPEN_MAX;
|
|
setrlimit( limit, &rlimit );
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
#ifdef __APPLE__
|
|
struct apple_stack_info
|
|
{
|
|
void *stack;
|
|
size_t desired_size;
|
|
};
|
|
|
|
/***********************************************************************
|
|
* apple_alloc_thread_stack
|
|
*
|
|
* Callback for wine_mmap_enum_reserved_areas to allocate space for
|
|
* the secondary thread's stack.
|
|
*/
|
|
static int apple_alloc_thread_stack( void *base, size_t size, void *arg )
|
|
{
|
|
struct apple_stack_info *info = arg;
|
|
|
|
/* For mysterious reasons, putting the thread stack at the very top
|
|
* of the address space causes subsequent execs to fail, even on the
|
|
* child side of a fork. Avoid the top 16MB. */
|
|
char * const limit = (char*)0xff000000;
|
|
if ((char *)base >= limit) return 0;
|
|
if (size > limit - (char*)base)
|
|
size = limit - (char*)base;
|
|
if (size < info->desired_size) return 0;
|
|
info->stack = wine_anon_mmap( (char *)base + size - info->desired_size,
|
|
info->desired_size, PROT_READ|PROT_WRITE, MAP_FIXED );
|
|
return (info->stack != (void *)-1);
|
|
}
|
|
|
|
/***********************************************************************
|
|
* apple_create_wine_thread
|
|
*
|
|
* Spin off a secondary thread to complete Wine initialization, leaving
|
|
* the original thread for the Mac frameworks.
|
|
*
|
|
* Invoked as a CFRunLoopSource perform callback.
|
|
*/
|
|
static void apple_create_wine_thread( void *init_func )
|
|
{
|
|
int success = 0;
|
|
pthread_t thread;
|
|
pthread_attr_t attr;
|
|
|
|
if (!pthread_attr_init( &attr ))
|
|
{
|
|
struct apple_stack_info info;
|
|
|
|
/* Try to put the new thread's stack in the reserved area. If this
|
|
* fails, just let it go wherever. It'll be a waste of space, but we
|
|
* can go on. */
|
|
if (!pthread_attr_getstacksize( &attr, &info.desired_size ) &&
|
|
wine_mmap_enum_reserved_areas( apple_alloc_thread_stack, &info, 1 ))
|
|
{
|
|
wine_mmap_remove_reserved_area( info.stack, info.desired_size, 0 );
|
|
pthread_attr_setstackaddr( &attr, (char*)info.stack + info.desired_size );
|
|
}
|
|
|
|
if (!pthread_attr_setdetachstate( &attr, PTHREAD_CREATE_JOINABLE ) &&
|
|
!pthread_create( &thread, &attr, init_func, NULL ))
|
|
success = 1;
|
|
|
|
pthread_attr_destroy( &attr );
|
|
}
|
|
|
|
/* Failure is indicated by returning from wine_init(). Stopping
|
|
* the run loop allows apple_main_thread() and thus wine_init() to
|
|
* return. */
|
|
if (!success)
|
|
CFRunLoopStop( CFRunLoopGetCurrent() );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* apple_main_thread
|
|
*
|
|
* Park the process's original thread in a Core Foundation run loop for
|
|
* use by the Mac frameworks, especially receiving and handling
|
|
* distributed notifications. Spin off a new thread for the rest of the
|
|
* Wine initialization.
|
|
*/
|
|
static void apple_main_thread( void (*init_func)(void) )
|
|
{
|
|
CFRunLoopSourceContext source_context = { 0 };
|
|
CFRunLoopSourceRef source;
|
|
|
|
/* Give ourselves the best chance of having the distributed notification
|
|
* center scheduled on this thread's run loop. In theory, it's scheduled
|
|
* in the first thread to ask for it. */
|
|
CFNotificationCenterGetDistributedCenter();
|
|
|
|
/* We use this run loop source for two purposes. First, a run loop exits
|
|
* if it has no more sources scheduled. So, we need at least one source
|
|
* to keep the run loop running. Second, although it's not critical, it's
|
|
* preferable for the Wine initialization to not proceed until we know
|
|
* the run loop is running. So, we signal our source immediately after
|
|
* adding it and have its callback spin off the Wine thread. */
|
|
source_context.info = init_func;
|
|
source_context.perform = apple_create_wine_thread;
|
|
source = CFRunLoopSourceCreate( NULL, 0, &source_context );
|
|
|
|
if (source)
|
|
{
|
|
CFRunLoopAddSource( CFRunLoopGetCurrent(), source, kCFRunLoopCommonModes );
|
|
CFRunLoopSourceSignal( source );
|
|
CFRelease( source );
|
|
|
|
CFRunLoopRun(); /* Should never return, except on error. */
|
|
}
|
|
|
|
/* If we get here (i.e. return), that indicates failure to our caller. */
|
|
}
|
|
#endif
|
|
|
|
|
|
/***********************************************************************
|
|
* wine_init
|
|
*
|
|
* Main Wine initialisation.
|
|
*/
|
|
void wine_init( int argc, char *argv[], char *error, int error_size )
|
|
{
|
|
struct dll_path_context context;
|
|
char *path;
|
|
void *ntdll = NULL;
|
|
void (*init_func)(void);
|
|
|
|
/* force a few limits that are set too low on some platforms */
|
|
#ifdef RLIMIT_NOFILE
|
|
set_max_limit( RLIMIT_NOFILE );
|
|
#endif
|
|
#ifdef RLIMIT_AS
|
|
set_max_limit( RLIMIT_AS );
|
|
#endif
|
|
|
|
wine_init_argv0_path( argv[0] );
|
|
build_dll_path();
|
|
__wine_main_argc = argc;
|
|
__wine_main_argv = argv;
|
|
__wine_main_environ = __wine_get_main_environment();
|
|
mmap_init();
|
|
|
|
for (path = first_dll_path( "ntdll.dll", 0, &context ); path; path = next_dll_path( &context ))
|
|
{
|
|
if ((ntdll = wine_dlopen( path, RTLD_NOW, error, error_size )))
|
|
{
|
|
/* if we didn't use the default dll dir, remove it from the search path */
|
|
if (default_dlldir[0] && context.index < nb_dll_paths + 2) nb_dll_paths--;
|
|
break;
|
|
}
|
|
}
|
|
free_dll_path( &context );
|
|
|
|
if (!ntdll) return;
|
|
if (!(init_func = wine_dlsym( ntdll, "__wine_process_init", error, error_size ))) return;
|
|
#ifdef __APPLE__
|
|
apple_main_thread( init_func );
|
|
#else
|
|
init_func();
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
* These functions provide wrappers around dlopen() and associated
|
|
* functions. They work around a bug in glibc 2.1.x where calling
|
|
* a dl*() function after a previous dl*() function has failed
|
|
* without a dlerror() call between the two will cause a crash.
|
|
* They all take a pointer to a buffer that
|
|
* will receive the error description (from dlerror()). This
|
|
* parameter may be NULL if the error description is not required.
|
|
*/
|
|
|
|
#ifndef RTLD_FIRST
|
|
#define RTLD_FIRST 0
|
|
#endif
|
|
|
|
/***********************************************************************
|
|
* wine_dlopen
|
|
*/
|
|
void *wine_dlopen( const char *filename, int flag, char *error, size_t errorsize )
|
|
{
|
|
#ifdef HAVE_DLOPEN
|
|
void *ret;
|
|
const char *s;
|
|
|
|
#ifdef __APPLE__
|
|
/* the Mac OS loader pretends to be able to load PE files, so avoid them here */
|
|
unsigned char magic[2];
|
|
int fd = open( filename, O_RDONLY );
|
|
if (fd != -1)
|
|
{
|
|
if (pread( fd, magic, 2, 0 ) == 2 && magic[0] == 'M' && magic[1] == 'Z')
|
|
{
|
|
static const char msg[] = "MZ format";
|
|
size_t len = min( errorsize, sizeof(msg) );
|
|
memcpy( error, msg, len );
|
|
error[len - 1] = 0;
|
|
close( fd );
|
|
return NULL;
|
|
}
|
|
close( fd );
|
|
}
|
|
#endif
|
|
dlerror(); dlerror();
|
|
#ifdef __sun
|
|
if (strchr( filename, ':' ))
|
|
{
|
|
char path[PATH_MAX];
|
|
/* Solaris' brain damaged dlopen() treats ':' as a path separator */
|
|
realpath( filename, path );
|
|
ret = dlopen( path, flag | RTLD_FIRST );
|
|
}
|
|
else
|
|
#endif
|
|
ret = dlopen( filename, flag | RTLD_FIRST );
|
|
s = dlerror();
|
|
if (error && errorsize)
|
|
{
|
|
if (s)
|
|
{
|
|
size_t len = strlen(s);
|
|
if (len >= errorsize) len = errorsize - 1;
|
|
memcpy( error, s, len );
|
|
error[len] = 0;
|
|
}
|
|
else error[0] = 0;
|
|
}
|
|
dlerror();
|
|
return ret;
|
|
#else
|
|
if (error)
|
|
{
|
|
static const char msg[] = "dlopen interface not detected by configure";
|
|
size_t len = min( errorsize, sizeof(msg) );
|
|
memcpy( error, msg, len );
|
|
error[len - 1] = 0;
|
|
}
|
|
return NULL;
|
|
#endif
|
|
}
|
|
|
|
/***********************************************************************
|
|
* wine_dlsym
|
|
*/
|
|
void *wine_dlsym( void *handle, const char *symbol, char *error, size_t errorsize )
|
|
{
|
|
#ifdef HAVE_DLOPEN
|
|
void *ret;
|
|
const char *s;
|
|
dlerror(); dlerror();
|
|
ret = dlsym( handle, symbol );
|
|
s = dlerror();
|
|
if (error && errorsize)
|
|
{
|
|
if (s)
|
|
{
|
|
size_t len = strlen(s);
|
|
if (len >= errorsize) len = errorsize - 1;
|
|
memcpy( error, s, len );
|
|
error[len] = 0;
|
|
}
|
|
else error[0] = 0;
|
|
}
|
|
dlerror();
|
|
return ret;
|
|
#else
|
|
if (error)
|
|
{
|
|
static const char msg[] = "dlopen interface not detected by configure";
|
|
size_t len = min( errorsize, sizeof(msg) );
|
|
memcpy( error, msg, len );
|
|
error[len - 1] = 0;
|
|
}
|
|
return NULL;
|
|
#endif
|
|
}
|
|
|
|
/***********************************************************************
|
|
* wine_dlclose
|
|
*/
|
|
int wine_dlclose( void *handle, char *error, size_t errorsize )
|
|
{
|
|
#ifdef HAVE_DLOPEN
|
|
int ret;
|
|
const char *s;
|
|
dlerror(); dlerror();
|
|
ret = dlclose( handle );
|
|
s = dlerror();
|
|
if (error && errorsize)
|
|
{
|
|
if (s)
|
|
{
|
|
size_t len = strlen(s);
|
|
if (len >= errorsize) len = errorsize - 1;
|
|
memcpy( error, s, len );
|
|
error[len] = 0;
|
|
}
|
|
else error[0] = 0;
|
|
}
|
|
dlerror();
|
|
return ret;
|
|
#else
|
|
if (error)
|
|
{
|
|
static const char msg[] = "dlopen interface not detected by configure";
|
|
size_t len = min( errorsize, sizeof(msg) );
|
|
memcpy( error, msg, len );
|
|
error[len - 1] = 0;
|
|
}
|
|
return 1;
|
|
#endif
|
|
}
|