More verbose error messages when application load fails.

include/wine/library.h

@@ -16,7 +16,8 @@ typedef void (*load_dll_callback_t)( void *, const char * );
 
 extern void wine_dll_set_callback( load_dll_callback_t load );
 extern void *wine_dll_load( const char *filename, char *error, int errorsize );
-extern void *wine_dll_load_main_exe( const char *name, int search_path );
+extern void *wine_dll_load_main_exe( const char *name, int search_path,
+                                     char *error, int errorsize );
 extern void wine_dll_unload( void *handle );
 
 /* debugging */

library/loader.c

@@ -349,7 +349,7 @@ void wine_dll_unload( void *handle )
  *
  * Try to load the .so for the main exe, optionally searching for it in PATH.
  */
-void *wine_dll_load_main_exe( const char *name, int search_path )
+void *wine_dll_load_main_exe( const char *name, int search_path, char *error, int errorsize )
 {
     void *ret = NULL;
     const char *path = NULL;
@@ -358,7 +358,7 @@ void *wine_dll_load_main_exe( const char *name, int search_path )
     if (!path)
     {
         /* no path, try only the specified name */
-        ret = wine_dlopen( name, RTLD_NOW, NULL, 0 );
+        ret = wine_dlopen( name, RTLD_NOW, error, errorsize );
     }
     else
     {
@@ -380,7 +380,7 @@ void *wine_dll_load_main_exe( const char *name, int search_path )
                 if ((len = p - path) > 0)
                 {
                     memcpy( basename - len, path, len );
-                    if ((ret = wine_dlopen( basename - len, RTLD_NOW, NULL, 0 ))) break;
+                    if ((ret = wine_dlopen( basename - len, RTLD_NOW, error, errorsize ))) break;
                 }
                 if (!*p) break;
                 path = p + 1;

scheduler/process.c

@@ -389,13 +389,14 @@ void *open_winelib_app( char *argv[] )
     void *ret = NULL;
     char *tmp;
     const char *name;
+    char errStr[100];
 
     if ((name = getenv( "WINEPRELOAD" )))
     {
-        if (!(ret = wine_dll_load_main_exe( name, 0 )))
+        if (!(ret = wine_dll_load_main_exe( name, 0, errStr, sizeof(errStr) )))
         {
-            MESSAGE( "%s: could not load '%s' as specified in the WINEPRELOAD environment variable\n",
-                     argv[0], name );
+            MESSAGE( "%s: could not load '%s' as specified in the WINEPRELOAD environment variable: %s\n",
+                     argv[0], name, errStr );
             ExitProcess(1);
         }
     }
@@ -417,12 +418,12 @@ void *open_winelib_app( char *argv[] )
             strcpy( tmp, argv0 );
             strcat( tmp, ".so" );
             /* search in PATH only if there was no '/' in argv[0] */
-            ret = wine_dll_load_main_exe( tmp, (name == argv0) );
+            ret = wine_dll_load_main_exe( tmp, (name == argv0), errStr, sizeof(errStr) );
             if (!ret && !argv[1])
             {
                 /* if no argv[1], this will be better than displaying usage */
-                MESSAGE( "%s: could not load library '%s' as Winelib application\n",
-                         argv[0], tmp );
+                MESSAGE( "%s: could not load library '%s' as Winelib application: %s\n",
+                         argv[0], tmp, errStr );
                 ExitProcess(1);
             }
             HeapFree( GetProcessHeap(), 0, tmp );