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419e9e117f
function call in SCM_DEFER_INTS/SCM_ALLOW_INTS. (scm_dynamic_link, scm_dynamic_unlink, scm_dynamic_func): Always call the sysdep functions with deferred ints. * dynl.c, dynl-dl.c, dynl-dld.c, dynl-shl.c (sysdep_dynl_link, sysdep_dynl_unlink, sysdep_dynl_func): Expect to be called with deferred interrupts and insert SCM_ALLOW_INTS before throwing an error. * dynl.c (scm_dynamic_unlink, scm_dynamic_call): Return SCM_UNSPECIFIED.
131 lines
3.7 KiB
C
131 lines
3.7 KiB
C
/* dynl-dld.c - dynamic linking with dld
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*
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* Copyright (C) 1990-1997 Free Software Foundation, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307 USA
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*
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* As a special exception, the Free Software Foundation gives permission
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* for additional uses of the text contained in its release of GUILE.
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*
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* The exception is that, if you link the GUILE library with other files
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* to produce an executable, this does not by itself cause the
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* resulting executable to be covered by the GNU General Public License.
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* Your use of that executable is in no way restricted on account of
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* linking the GUILE library code into it.
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*
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* This exception does not however invalidate any other reasons why
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* the executable file might be covered by the GNU General Public License.
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*
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* This exception applies only to the code released by the
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* Free Software Foundation under the name GUILE. If you copy
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* code from other Free Software Foundation releases into a copy of
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* GUILE, as the General Public License permits, the exception does
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* not apply to the code that you add in this way. To avoid misleading
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* anyone as to the status of such modified files, you must delete
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* this exception notice from them.
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*
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* If you write modifications of your own for GUILE, it is your choice
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* whether to permit this exception to apply to your modifications.
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* If you do not wish that, delete this exception notice. */
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/* "dynl.c" dynamically link&load object files.
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Author: Aubrey Jaffer
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Modified for libguile by Marius Vollmer */
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#include "dld.h"
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static void listundef SCM_P ((void));
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static void
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listundefs ()
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{
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int i;
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char **undefs = dld_list_undefined_sym();
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puts(" undefs:");
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for(i = dld_undefined_sym_count;i--;) {
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putc('"', stdout);
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fputs(undefs[i], stdout);
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puts("\"");
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}
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free(undefs);
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}
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static void *
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sysdep_dynl_link (fname, subr)
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char *fname;
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char *subr;
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{
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int status;
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status = dld_link (fname);
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if (status)
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{
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SCM_ALLOW_INTS;
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scm_misc_error (subr, dld_strerror (status), SCM_EOL);
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}
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return fname;
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}
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static void
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sysdep_dynl_unlink (handle, subr)
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void *handle;
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char *subr;
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{
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int status;
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status = dld_unlink_by_file ((char *)fname, 1);
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if (status)
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{
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SCM_ALLOW_INTS;
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scm_misc_error (s_dynamic_unlink, dld_strerror (status), SCM_EOL);
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}
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}
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static void *
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sysdep_dynl_func (symb, handle, subr)
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char *symb;
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void *handle;
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char *subr;
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{
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void *func;
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func = (void *) dld_get_func (func);
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if (func == 0)
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scm_misc_error (subr, dld_strerror (dld_errno), SCM_EOL);
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if (!dld_function_executable_p (func)) {
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listundefs ();
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SCM_ALLOW_INTS;
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scm_misc_error (subr, "unresolved symbols remain", SCM_EOL);
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}
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return func;
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}
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static void
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sysdep_dynl_init ()
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{
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#ifndef RTL
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if (!execpath)
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execpath = dld_find_executable (SCM_CHARS (SCM_CAR (progargs)));
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if (dld_init (SCM_CHARS (SCM_CAR (progargs)))) {
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dld_perror("DLD");
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return;
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}
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#endif
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#ifdef DLD_DYNCM /* XXX - what's this? */
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add_feature("dld:dyncm");
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#endif
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}
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