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/*
* BRLTTY - A background process providing access to the console screen (when in
* text mode) for a blind person using a refreshable braille display.
*
* Copyright (C) 1995-2018 by The BRLTTY Developers.
*
* BRLTTY comes with ABSOLUTELY NO WARRANTY.
*
* This is free software, placed 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. Please see the file LICENSE-LGPL for details.
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*
* This software is maintained by Dave Mielke <dave@mielke.cc>.
*/
#include "prologue.h"
#include <string.h>
#ifdef HAVE_SHL_LOAD
#include <dl.h>
#endif /* HAVE_SHL_LOAD */
#include "log.h"
#include "dynld.h"
void *
loadSharedObject (const char *path) {
#ifdef HAVE_SHL_LOAD
shl_t object = shl_load(path, BIND_IMMEDIATE|BIND_VERBOSE|DYNAMIC_PATH, 0L);
if (object) return object;
logMessage(LOG_ERR, "Shared library '%s' not loaded: %s",
path, strerror(errno));
#endif /* HAVE_SHL_LOAD */
return NULL;
}
void
unloadSharedObject (void *object) {
#ifdef HAVE_SHL_LOAD
if (shl_unload(object) == -1)
logMessage(LOG_ERR, "Shared library unload error: %s",
strerror(errno));
#endif /* HAVE_SHL_LOAD */
}
int
findSharedSymbol (void *object, const char *symbol, const void **address) {
#ifdef HAVE_SHL_LOAD
shl_t handle = object;
if (shl_findsym(&handle, symbol, TYPE_UNDEFINED, address) != -1) return 1;
logMessage(LOG_ERR, "Shared symbol '%s' not found: %s",
symbol, strerror(errno));
#endif /* HAVE_SHL_LOAD */
return 0;
}
const char *
getSharedSymbolName (void *address, ptrdiff_t *offset) {
return NULL;
}