+++ /dev/null
-/* Copyright (C) 2001 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. */
-
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <string.h>
-#include "bootstrap.h"
-#include "frames.h"
-
-\f
-scm_t_bits scm_tc16_heap_frame;
-
-SCM
-scm_c_make_heap_frame (SCM *fp)
-{
- SCM frame;
- SCM *lower = SCM_FRAME_LOWER_ADDRESS (fp);
- SCM *upper = SCM_FRAME_UPPER_ADDRESS (fp);
- size_t size = sizeof (SCM) * (upper - lower + 1);
- SCM *p = scm_gc_malloc (size, "frame");
-
- SCM_NEWSMOB (frame, scm_tc16_heap_frame, p);
- p[0] = frame; /* self link */
- memcpy (p + 1, lower, size - sizeof (SCM));
-
- return frame;
-}
-
-static SCM
-heap_frame_mark (SCM obj)
-{
- SCM *sp;
- SCM *fp = SCM_HEAP_FRAME_POINTER (obj);
- SCM *limit = &SCM_FRAME_HEAP_LINK (fp);
-
- for (sp = SCM_FRAME_LOWER_ADDRESS (fp); sp <= limit; sp++)
- if (SCM_NIMP (*sp))
- scm_gc_mark (*sp);
-
- return SCM_BOOL_F;
-}
-
-static scm_sizet
-heap_frame_free (SCM obj)
-{
- SCM *fp = SCM_HEAP_FRAME_POINTER (obj);
- SCM *lower = SCM_FRAME_LOWER_ADDRESS (fp);
- SCM *upper = SCM_FRAME_UPPER_ADDRESS (fp);
- size_t size = sizeof (SCM) * (upper - lower + 1);
-
- scm_gc_free (SCM_HEAP_FRAME_DATA (obj), size, "frame");
-
- return 0;
-}
-
-/* Scheme interface */
-
-SCM_DEFINE (scm_frame_p, "frame?", 1, 0, 0,
- (SCM obj),
- "")
-#define FUNC_NAME s_scm_frame_p
-{
- return SCM_BOOL (SCM_HEAP_FRAME_P (obj));
-}
-#undef FUNC_NAME
-
-SCM_DEFINE (scm_frame_program, "frame-program", 1, 0, 0,
- (SCM frame),
- "")
-#define FUNC_NAME s_scm_frame_program
-{
- SCM_VALIDATE_HEAP_FRAME (1, frame);
- return SCM_FRAME_PROGRAM (SCM_HEAP_FRAME_POINTER (frame));
-}
-#undef FUNC_NAME
-
-SCM_DEFINE (scm_frame_local_ref, "frame-local-ref", 2, 0, 0,
- (SCM frame, SCM index),
- "")
-#define FUNC_NAME s_scm_frame_local_ref
-{
- SCM_VALIDATE_HEAP_FRAME (1, frame);
- SCM_MAKE_VALIDATE (2, index, I_INUMP); /* FIXME: Check the range! */
- return SCM_FRAME_VARIABLE (SCM_HEAP_FRAME_POINTER (frame),
- SCM_I_INUM (index));
-}
-#undef FUNC_NAME
-
-SCM_DEFINE (scm_frame_local_set_x, "frame-local-set!", 3, 0, 0,
- (SCM frame, SCM index, SCM val),
- "")
-#define FUNC_NAME s_scm_frame_local_set_x
-{
- SCM_VALIDATE_HEAP_FRAME (1, frame);
- SCM_MAKE_VALIDATE (2, index, I_INUMP); /* FIXME: Check the range! */
- SCM_FRAME_VARIABLE (SCM_HEAP_FRAME_POINTER (frame),
- SCM_I_INUM (index)) = val;
- return SCM_UNSPECIFIED;
-}
-#undef FUNC_NAME
-
-SCM_DEFINE (scm_frame_return_address, "frame-return-address", 1, 0, 0,
- (SCM frame),
- "")
-#define FUNC_NAME s_scm_frame_return_address
-{
- SCM_VALIDATE_HEAP_FRAME (1, frame);
- return scm_from_ulong ((unsigned long)
- (SCM_FRAME_RETURN_ADDRESS
- (SCM_HEAP_FRAME_POINTER (frame))));
-}
-#undef FUNC_NAME
-
-SCM_DEFINE (scm_frame_dynamic_link, "frame-dynamic-link", 1, 0, 0,
- (SCM frame),
- "")
-#define FUNC_NAME s_scm_frame_dynamic_link
-{
- SCM_VALIDATE_HEAP_FRAME (1, frame);
- return SCM_FRAME_HEAP_LINK (SCM_HEAP_FRAME_POINTER (frame));
-}
-#undef FUNC_NAME
-
-SCM_DEFINE (scm_frame_external_link, "frame-external-link", 1, 0, 0,
- (SCM frame),
- "")
-#define FUNC_NAME s_scm_frame_external_link
-{
- SCM_VALIDATE_HEAP_FRAME (1, frame);
- return SCM_FRAME_EXTERNAL_LINK (SCM_HEAP_FRAME_POINTER (frame));
-}
-#undef FUNC_NAME
-
-\f
-void
-scm_bootstrap_frames (void)
-{
- scm_tc16_heap_frame = scm_make_smob_type ("frame", 0);
- scm_set_smob_mark (scm_tc16_heap_frame, heap_frame_mark);
- scm_set_smob_free (scm_tc16_heap_frame, heap_frame_free);
-}
-
-void
-scm_init_frames (void)
-{
- scm_bootstrap_vm ();
-
-#ifndef SCM_MAGIC_SNARFER
-#include "frames.x"
-#endif
-}
-
-/*
- Local Variables:
- c-file-style: "gnu"
- End:
-*/
HCoop / bpt / guile.git / blobdiff