1 /* GMODULE - GLIB wrapper code for dynamic module loading
2 * Copyright (C) 1998, 2000 Tim Janik
4 * BeOS GMODULE implementation
5 * Copyright (C) 1999 Richard Offer and Shawn T. Amundson (amundson@gtk.org)
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20 * Boston, MA 02111-1307, USA.
28 #include <be/kernel/image.h> /* image (aka DSO) handling functions... */
31 * The BeOS doesn't use the same symantics as Unix's dlopen....
36 #endif /* RTLD_GLOBAL */
39 #endif /* RTLD_LAZY */
48 * You can load the same DSO more than once, in which case you'll have
49 * different image_id's. While this means that we don't have to worry about
50 * reference counts, it could lead to problems in the future....
53 * load_add_on() apparently does not support lazy or local binding. Need
54 * to confirm that the actual behavior is non-lazy/local. --ds
60 /* --- functions --- */
62 _g_module_open (const gchar
*file_name
,
68 handle
= load_add_on (file_name
);
71 gchar
*msg
= g_strdup_printf ("failed to load_add_on(%s): %s",
75 g_module_set_error (msg
);
81 return (gpointer
) handle
;
91 /* Is it always the first one? I'm guessing yes. */
92 status
= get_next_image_info (0, &cookie
, &info
);
94 return (gpointer
) info
.id
;
97 gchar
*msg
= g_strdup_printf ("failed to get_next_image_info(self): %s",
100 g_module_set_error (msg
);
108 _g_module_close (gpointer handle
,
114 if (unload_add_on ((image_id
) handle
) != B_OK
)
118 /* Try and get the name of the image. */
119 if (get_image_info ((image_id
) handle
, &info
) != B_OK
)
120 name
= g_strdup ("unknown");
122 name
= g_strdup (info
.name
);
124 msg
= g_strdup_printf ("failed to unload_add_on(%s): %s", name
, strerror (status
));
125 g_module_set_error (msg
);
132 _g_module_symbol (gpointer handle
,
133 const gchar
*symbol_name
)
138 int32 type
, name_len
;
140 gchar
*msg
, name
[256];
143 id
= (image_id
) handle
;
145 status
= get_image_info (id
, &info
);
148 msg
= g_strdup_printf ("failed to get_image_info(): %s", strerror (status
));
149 g_module_set_error (msg
);
155 l
= strlen (symbol_name
);
157 type
= B_SYMBOL_TYPE_ANY
;
159 status
= get_nth_image_symbol (id
, n
, name
, &name_len
, &type
, &p
);
160 while (status
== B_OK
)
162 if (p
&& strncmp (name
, symbol_name
, l
) == 0)
165 if (strcmp (name
, "_end") == 0)
167 msg
= g_strdup_printf ("unmatched symbol name `%s'", symbol_name
);
168 g_module_set_error (msg
);
175 type
= B_SYMBOL_TYPE_ANY
;
177 status
= get_nth_image_symbol (id
, n
, name
, &name_len
, &type
, &p
);
180 msg
= g_strdup_printf ("failed to get_image_symbol(%s): %s", symbol_name
, strerror (status
));
181 g_module_set_error (msg
);
188 _g_module_build_path (const gchar
*directory
,
189 const gchar
*module_name
)
191 g_warning ("_g_module_build_path() untested for BeOS!");
193 if (directory
&& *directory
)
195 if (strncmp (module_name
, "lib", 3) == 0)
196 return g_strconcat (directory
, "/", module_name
, NULL
);
198 return g_strconcat (directory
, "/lib", module_name
, "." G_MODULE_SUFFIX
, NULL
);
200 else if (strncmp (module_name
, "lib", 3) == 0)
201 return g_strdup (module_name
);
203 return g_strconcat ("lib", module_name
, "." G_MODULE_SUFFIX
, NULL
);