-/* Copyright (C) 1995,1996,1997 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. */
-
-/* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
- gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
-
-\f
-
-#include <stdio.h>
-#include "_scm.h"
-
-#include "stackchk.h"
-\f
-
-/* {Stack Checking}
- */
-
-#ifdef STACK_CHECKING
-int scm_stack_checking_enabled_p;
-
-SCM_SYMBOL (scm_stack_overflow_key, "stack-overflow");
-
-void
-scm_report_stack_overflow ()
-{
- scm_stack_checking_enabled_p = 0;
- scm_error (scm_stack_overflow_key,
- NULL,
- "Stack overflow",
- SCM_BOOL_F,
- SCM_BOOL_F);
-}
-
-#endif
-
-long
-scm_stack_size (SCM_STACKITEM *start)
-{
- SCM_STACKITEM stack;
-#ifdef SCM_STACK_GROWS_UP
- return &stack - start;
-#else
- return start - &stack;
-#endif /* def SCM_STACK_GROWS_UP */
-}
-
-
-void
-scm_stack_report ()
-{
- SCM_STACKITEM stack;
- scm_intprint (scm_stack_size (SCM_BASE (scm_rootcont)) * sizeof (SCM_STACKITEM),
- 16, scm_cur_errp);
- scm_puts (" of stack: 0x", scm_cur_errp);
- scm_intprint ((long) SCM_BASE (scm_rootcont), 16, scm_cur_errp);
- scm_puts (" - 0x", scm_cur_errp);
- scm_intprint ((long) &stack, 16, scm_cur_errp);
- scm_puts ("\n", scm_cur_errp);
-}
-
-
-
-
-void
-scm_init_stackchk ()
-{
-#include "stackchk.x"
-}
+/* Copyright (C) 1995,1996,1997, 2000, 2001, 2006, 2008, 2010, 2011 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
+ */
+
+
+\f
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "libguile/_scm.h"
+#include "libguile/ports.h"
+#include "libguile/root.h"
+#include "libguile/threads.h"
+#include "libguile/dynwind.h"
+
+#include "libguile/stackchk.h"
+\f
+
+/* {Stack Checking}
+ */
+
+int scm_stack_checking_enabled_p;
+
+SCM_SYMBOL (scm_stack_overflow_key, "stack-overflow");
+
+static void
+reset_scm_stack_checking_enabled_p (void *arg)
+{
+ scm_stack_checking_enabled_p = (int)(scm_t_bits)arg;
+}
+
+void
+scm_report_stack_overflow ()
+{
+ scm_dynwind_begin (0); /* non-rewindable frame */
+ scm_dynwind_unwind_handler (reset_scm_stack_checking_enabled_p,
+ (void*)(scm_t_bits)scm_stack_checking_enabled_p,
+ SCM_F_WIND_EXPLICITLY);
+
+ scm_stack_checking_enabled_p = 0;
+
+ scm_error (scm_stack_overflow_key,
+ NULL,
+ "Stack overflow",
+ SCM_BOOL_F,
+ SCM_BOOL_F);
+
+ /* not reached */
+ scm_dynwind_end ();
+}
+
+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_unlocked (" of stack: 0x", port);
+ scm_uintprint ((scm_t_bits) thread->continuation_base, 16, port);
+ scm_puts_unlocked (" - 0x", port);
+ scm_uintprint ((scm_t_bits) &stack, 16, port);
+ scm_puts_unlocked ("\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:
+*/
HCoop / bpt / guile.git / blobdiff