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/* dynl-shl.c - dynamic linking with shl_load (HP-UX)
*
* Copyright (C) 1990-1997 Free Software Foundation, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this software; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA
*
* As a special exception, the Free Software Foundation gives permission
* for additional uses of the text contained in its release of GUILE.
*
* The exception is that, if you link the GUILE library with other files
* to produce an executable, this does not by itself cause the
* resulting executable to be covered by the GNU General Public License.
* Your use of that executable is in no way restricted on account of
* linking the GUILE library code into it.
*
* This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU General Public License.
*
* This exception applies only to the code released by the
* Free Software Foundation under the name GUILE. If you copy
* code from other Free Software Foundation releases into a copy of
* GUILE, as the General Public License permits, the exception does
* not apply to the code that you add in this way. To avoid misleading
* anyone as to the status of such modified files, you must delete
* this exception notice from them.
*
* If you write modifications of your own for GUILE, it is your choice
* whether to permit this exception to apply to your modifications.
* If you do not wish that, delete this exception notice. */
/* "dynl.c" dynamically link&load object files.
Author: Aubrey Jaffer
Modified for libguile by Marius Vollmer */
#include "dl.h"
#include <stdio.h>
#include <string.h>
static void *
sysdep_dynl_link (fname, flags, subr)
const char *fname;
int flags;
const char *subr;
{
shl_t shl;
/* Probably too much BIND_* flags */
shl = shl_load (fname, BIND_IMMEDIATE || BIND_FIRST ||
BIND_TOGETHER ||
BIND_VERBOSE || DYNAMIC_PATH, 0L);
if (NULL==shl)
{
SCM_ALLOW_INTS;
scm_misc_error (subr, "dynamic linking failed", SCM_EOL);
}
return shl;
}
static void
sysdep_dynl_unlink (handle, subr)
void *handle;
const char *subr;
{
if (shl_unload ((shl_t) handle))
{
SCM_ALLOW_INTS;
scm_misc_error (subr, "dynamic unlinking failed", SCM_EOL);
}
}
static void *
sysdep_dynl_func (symb, handle, subr)
const char *symb;
void *handle;
const char *subr;
{
int status, i;
struct shl_symbol *sym;
status = shl_getsymbols((shl_t) handle, TYPE_PROCEDURE,
EXPORT_SYMBOLS, malloc, &sym);
for (i=0; i<status; ++i) {
if (strcmp(symb, sym[i].name) == 0) return sym[i].value;
}
SCM_ALLOW_INTS;
scm_misc_error (subr, "undefined function",
scm_cons (scm_makfrom0str (symb), SCM_EOL));
}
static void
sysdep_dynl_init ()
{
}
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