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Diffstat (limited to 'libltdl/loaders/dld_link.c')
| -rw-r--r-- | libltdl/loaders/dld_link.c | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/libltdl/loaders/dld_link.c b/libltdl/loaders/dld_link.c deleted file mode 100644 index 7e882c9..0000000 --- a/libltdl/loaders/dld_link.c +++ /dev/null @@ -1,158 +0,0 @@ -/* loader-dld_link.c -- dynamic linking with dld - - Copyright (C) 1998, 1999, 2000, 2004, 2006, - 2007, 2008 Free Software Foundation, Inc. - Written by Thomas Tanner, 1998 - - NOTE: The canonical source of this file is maintained with the - GNU Libtool package. Report bugs to bug-libtool@gnu.org. - -GNU Libltdl 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 of the License, or (at your option) any later version. - -As a special exception to the GNU Lesser General Public License, -if you distribute this file as part of a program or library that -is built using GNU Libtool, you may include this file under the -same distribution terms that you use for the rest of that program. - -GNU Libltdl 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 GNU Libltdl; see the file COPYING.LIB. If not, a -copy can be downloaded from http://www.gnu.org/licenses/lgpl.html, -or obtained by writing to the Free Software Foundation, Inc., -51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. -*/ - -#include "lt__private.h" -#include "lt_dlloader.h" - -/* Use the preprocessor to rename non-static symbols to avoid namespace - collisions when the loader code is statically linked into libltdl. - Use the "<module_name>_LTX_" prefix so that the symbol addresses can - be fetched from the preloaded symbol list by lt_dlsym(): */ -#define get_vtable dld_link_LTX_get_vtable - -LT_BEGIN_C_DECLS -LT_SCOPE lt_dlvtable *get_vtable (lt_user_data loader_data); -LT_END_C_DECLS - - -/* Boilerplate code to set up the vtable for hooking this loader into - libltdl's loader list: */ -static int vl_exit (lt_user_data loader_data); -static lt_module vm_open (lt_user_data loader_data, const char *filename, - lt_dladvise advise); -static int vm_close (lt_user_data loader_data, lt_module module); -static void * vm_sym (lt_user_data loader_data, lt_module module, - const char *symbolname); - -static lt_dlvtable *vtable = 0; - -/* Return the vtable for this loader, only the name and sym_prefix - attributes (plus the virtual function implementations, obviously) - change between loaders. */ -lt_dlvtable * -get_vtable (lt_user_data loader_data) -{ - if (!vtable) - { - vtable = lt__zalloc (sizeof *vtable); - } - - if (vtable && !vtable->name) - { - vtable->name = "lt_dld_link"; - vtable->module_open = vm_open; - vtable->module_close = vm_close; - vtable->find_sym = vm_sym; - vtable->dlloader_exit = vl_exit; - vtable->dlloader_data = loader_data; - vtable->priority = LT_DLLOADER_APPEND; - } - - if (vtable && (vtable->dlloader_data != loader_data)) - { - LT__SETERROR (INIT_LOADER); - return 0; - } - - return vtable; -} - - - -/* --- IMPLEMENTATION --- */ - - -#if defined(HAVE_DLD_H) -# include <dld.h> -#endif - -/* A function called through the vtable when this loader is no - longer needed by the application. */ -static int -vl_exit (lt_user_data LT__UNUSED loader_data) -{ - vtable = NULL; - return 0; -} - -/* A function called through the vtable to open a module with this - loader. Returns an opaque representation of the newly opened - module for processing with this loader's other vtable functions. */ -static lt_module -vm_open (lt_user_data LT__UNUSED loader_data, const char *filename, - lt_dladvise LT__UNUSED advise) -{ - lt_module module = lt__strdup (filename); - - if (dld_link (filename) != 0) - { - LT__SETERROR (CANNOT_OPEN); - FREE (module); - } - - return module; -} - -/* A function called through the vtable when a particular module - should be unloaded. */ -static int -vm_close (lt_user_data LT__UNUSED loader_data, lt_module module) -{ - int errors = 0; - - if (dld_unlink_by_file ((char*)(module), 1) != 0) - { - LT__SETERROR (CANNOT_CLOSE); - ++errors; - } - else - { - FREE (module); - } - - return errors; -} - -/* A function called through the vtable to get the address of - a symbol loaded from a particular module. */ -static void * -vm_sym (lt_user_data LT__UNUSED loader_data, lt_module LT__UNUSED module, - const char *name) -{ - void *address = dld_get_func (name); - - if (!address) - { - LT__SETERROR (SYMBOL_NOT_FOUND); - } - - return address; -} |