1 /* Copyright (C) 1995,1996,1997, 2000, 2001, 2006, 2008 Free Software Foundation, Inc.
3 * This library is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU Lesser General Public
5 * License as published by the Free Software Foundation; either
6 * version 2.1 of the License, or (at your option) any later version.
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * Lesser General Public License for more details.
13 * You should have received a copy of the GNU Lesser General Public
14 * License along with this library; if not, write to the Free Software
15 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 #include "libguile/_scm.h"
25 #include "libguile/ports.h"
26 #include "libguile/root.h"
27 #include "libguile/threads.h"
29 #include "libguile/stackchk.h"
36 int scm_stack_checking_enabled_p;
38 SCM_SYMBOL (scm_stack_overflow_key, "stack-overflow");
41 scm_report_stack_overflow ()
43 scm_stack_checking_enabled_p = 0;
44 scm_error (scm_stack_overflow_key,
54 scm_stack_size (SCM_STACKITEM *start)
57 #if SCM_STACK_GROWS_UP
58 return &stack - start;
60 return start - &stack;
61 #endif /* SCM_STACK_GROWS_UP */
68 SCM port = scm_current_error_port ();
70 scm_i_thread *thread = SCM_I_CURRENT_THREAD;
72 scm_uintprint ((scm_stack_size (thread->continuation_base)
73 * sizeof (SCM_STACKITEM)),
75 scm_puts (" of stack: 0x", port);
76 scm_uintprint ((scm_t_bits) thread->continuation_base, 16, port);
77 scm_puts (" - 0x", port);
78 scm_uintprint ((scm_t_bits) &stack, 16, port);
79 scm_puts ("\n", port);
83 SCM_DEFINE (scm_sys_get_stack_size, "%get-stack-size", 0, 0, 0,
85 "Return the current thread's C stack size (in Scheme objects).")
86 #define FUNC_NAME s_scm_sys_get_stack_size
88 return scm_from_long (scm_stack_size (SCM_I_CURRENT_THREAD->base));
96 #include "libguile/stackchk.x"