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/* Copyright (C) 1995-1997,2000-2001,2006,2008,2010-2011,2014,2018
* Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 3 of
* the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "libguile/_scm.h"
#include "libguile/gsubr.h"
#include "libguile/numbers.h"
#include "libguile/ports.h"
#include "libguile/threads.h"
#include "libguile/dynwind.h"
#include "libguile/stackchk.h"
/* {Stack Checking}
*/
int scm_stack_checking_enabled_p;
long
scm_stack_size (SCM_STACKITEM *start)
{
SCM_STACKITEM stack;
#if SCM_STACK_GROWS_UP
return &stack - start;
#else
return start - &stack;
#endif /* SCM_STACK_GROWS_UP */
}
void
scm_stack_report ()
{
SCM port = scm_current_error_port ();
SCM_STACKITEM stack;
scm_i_thread *thread = SCM_I_CURRENT_THREAD;
scm_uintprint ((scm_stack_size (thread->continuation_base)
* sizeof (SCM_STACKITEM)),
16, port);
scm_puts (" of stack: 0x", port);
scm_uintprint ((scm_t_bits) thread->continuation_base, 16, port);
scm_puts (" - 0x", port);
scm_uintprint ((scm_t_bits) &stack, 16, port);
scm_puts ("\n", port);
}
SCM_DEFINE (scm_sys_get_stack_size, "%get-stack-size", 0, 0, 0,
(),
"Return the current thread's C stack size (in Scheme objects).")
#define FUNC_NAME s_scm_sys_get_stack_size
{
return scm_from_long (scm_stack_size (SCM_I_CURRENT_THREAD->base));
}
#undef FUNC_NAME
void
scm_init_stackchk ()
{
#include "libguile/stackchk.x"
}
/*
Local Variables:
c-file-style: "gnu"
End:
*/
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