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b9b9a02804
* libguile/__scm.h: Remove #define STACK_CHECKING and #undef NO_CEVAL_STACK_CHECKING. * libguile/debug.c (scm_debug_options) * libguile/init.c (scm_i_init_guile): * libguile/stackchk.c (scm_report_stack_overflow): * libguile/stackchk.h: Always enable stack checking.
117 lines
2.8 KiB
C
117 lines
2.8 KiB
C
/* Copyright (C) 1995,1996,1997, 2000, 2001, 2006, 2008, 2010, 2011 Free Software Foundation, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 3 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "libguile/_scm.h"
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#include "libguile/ports.h"
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#include "libguile/root.h"
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#include "libguile/threads.h"
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#include "libguile/dynwind.h"
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#include "libguile/stackchk.h"
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/* {Stack Checking}
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*/
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int scm_stack_checking_enabled_p;
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SCM_SYMBOL (scm_stack_overflow_key, "stack-overflow");
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static void
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reset_scm_stack_checking_enabled_p (void *arg)
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{
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scm_stack_checking_enabled_p = (int)(scm_t_bits)arg;
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}
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void
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scm_report_stack_overflow ()
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{
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scm_dynwind_begin (0); /* non-rewindable frame */
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scm_dynwind_unwind_handler (reset_scm_stack_checking_enabled_p,
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(void*)(scm_t_bits)scm_stack_checking_enabled_p,
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SCM_F_WIND_EXPLICITLY);
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scm_stack_checking_enabled_p = 0;
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scm_error (scm_stack_overflow_key,
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NULL,
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"Stack overflow",
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SCM_BOOL_F,
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SCM_BOOL_F);
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/* not reached */
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scm_dynwind_end ();
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}
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long
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scm_stack_size (SCM_STACKITEM *start)
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{
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SCM_STACKITEM stack;
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#if SCM_STACK_GROWS_UP
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return &stack - start;
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#else
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return start - &stack;
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#endif /* SCM_STACK_GROWS_UP */
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}
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void
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scm_stack_report ()
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{
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SCM port = scm_current_error_port ();
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SCM_STACKITEM stack;
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scm_i_thread *thread = SCM_I_CURRENT_THREAD;
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scm_uintprint ((scm_stack_size (thread->continuation_base)
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* sizeof (SCM_STACKITEM)),
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16, port);
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scm_puts (" of stack: 0x", port);
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scm_uintprint ((scm_t_bits) thread->continuation_base, 16, port);
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scm_puts (" - 0x", port);
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scm_uintprint ((scm_t_bits) &stack, 16, port);
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scm_puts ("\n", port);
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}
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SCM_DEFINE (scm_sys_get_stack_size, "%get-stack-size", 0, 0, 0,
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(),
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"Return the current thread's C stack size (in Scheme objects).")
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#define FUNC_NAME s_scm_sys_get_stack_size
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{
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return scm_from_long (scm_stack_size (SCM_I_CURRENT_THREAD->base));
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}
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#undef FUNC_NAME
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void
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scm_init_stackchk ()
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{
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#include "libguile/stackchk.x"
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}
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/*
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Local Variables:
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c-file-style: "gnu"
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End:
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*/
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