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-rw-r--r--libguile/dynl-dld.c128
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diff --git a/libguile/dynl-dld.c b/libguile/dynl-dld.c
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+/* dynl-dld.c - dynamic linking with dld
+ *
+ * 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, 675 Mass Ave, Cambridge, MA 02139, 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 "dld.h"
+
+static void listundef SCM_P ((void));
+
+static void
+listundefs ()
+{
+ int i;
+ char **undefs = dld_list_undefined_sym();
+ puts(" undefs:");
+ for(i = dld_undefined_sym_count;i--;) {
+ putc('"', stdout);
+ fputs(undefs[i], stdout);
+ puts("\"");
+ }
+ free(undefs);
+}
+
+static void *
+sysdep_dynl_link (fname, subr)
+ char *fname;
+ char *subr;
+{
+ int status;
+
+ status = dld_link (fname);
+ if (status)
+ scm_misc_error (subr, dld_strerror (status), SCM_EOL);
+ return fname;
+}
+
+static void
+sysdep_dynl_unlink (handle, subr)
+ void *handle;
+ char *subr;
+{
+ int status;
+
+ SCM_DEFER_INTS;
+ status = dld_unlink_by_file ((char *)fname, 1);
+ SCM_ALLOW_INTS;
+ if (status)
+ scm_misc_error (s_dynamic_unlink, dld_strerror (status), SCM_EOL);
+}
+
+static void *
+sysdep_dynl_func (symb, handle, subr)
+ char *symb;
+ void *handle;
+ char *subr;
+{
+ void *func;
+
+ SCM_DEFER_INTS;
+ func = (void *) dld_get_func (func);
+ if (func == 0)
+ scm_misc_error (subr, dld_strerror (dld_errno), SCM_EOL);
+ if (!dld_function_executable_p (func)) {
+ listundefs ();
+ scm_misc_error (subr, "unresolved symbols remain", SCM_EOL);
+ }
+ SCM_ALLOW_INTS;
+ return func;
+}
+
+static void
+sysdep_dynl_init ()
+{
+#ifndef RTL
+ if (!execpath)
+ execpath = dld_find_executable (SCM_CHARS (SCM_CAR (progargs)));
+ if (dld_init (SCM_CHARS (SCM_CAR (progargs)))) {
+ dld_perror("DLD");
+ return;
+ }
+#endif
+
+#ifdef DLD_DYNCM /* XXX - what's this? */
+ add_feature("dld:dyncm");
+#endif
+}