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[bpt/guile.git] / libguile / stackchk.h
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1/* classes: h_files */
2
3#ifndef SCM_STACKCHK_H
4#define SCM_STACKCHK_H
5
6/* Copyright (C) 1995,1996,1998,2000, 2003, 2006, 2008, 2009, 2010, 2011, 2014 Free Software Foundation, Inc.
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public License
10 * as published by the Free Software Foundation; either version 3 of
11 * the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful, but
14 * WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
21 * 02110-1301 USA
22 */
23
24\f
25
26#include "libguile/__scm.h"
27
28#include "libguile/continuations.h"
29#include "libguile/debug.h"
30
31\f
32
33/* With debug options we have the possibility to disable stack checking.
34 */
35#define SCM_STACK_CHECKING_P SCM_STACK_LIMIT
36
37#if defined BUILDING_LIBGUILE
38#include "libguile/private-options.h"
39# if SCM_STACK_GROWS_UP
40# define SCM_STACK_OVERFLOW_P(s)\
41 ((SCM_STACK_PTR (s) - SCM_I_CURRENT_THREAD->base) > SCM_STACK_LIMIT)
42# else
43# define SCM_STACK_OVERFLOW_P(s)\
44 ((SCM_I_CURRENT_THREAD->base - SCM_STACK_PTR (s)) > SCM_STACK_LIMIT)
45# endif
46# define SCM_CHECK_STACK\
47 {\
48 SCM_STACKITEM stack;\
49 if (SCM_STACK_OVERFLOW_P (&stack) && scm_stack_checking_enabled_p)\
50 scm_report_stack_overflow ();\
51 }
52#else
53# define SCM_CHECK_STACK /**/
54#endif
55
56SCM_API int scm_stack_checking_enabled_p;
57
58\f
59
60SCM_API long scm_stack_size (SCM_STACKITEM *start);
61SCM_API void scm_stack_report (void);
62SCM_API SCM scm_sys_get_stack_size (void);
63SCM_INTERNAL void scm_init_stackchk (void);
64
65#endif /* SCM_STACKCHK_H */
66
67/*
68 Local Variables:
69 c-file-style: "gnu"
70 End:
71*/