mirror of
https://git.savannah.gnu.org/git/guile.git
synced 2025-04-30 03:40:34 +02:00
7e2fd4e7f5
* module/ice-9/boot-9.scm (catch): Signal an early error if the handler or pre-unwind handler types aren't right. This is more important than it was, given that we dispatch on type now when finding matching catch clauses. * libguile/vm.c (vm_expand_stack): Use the standard scm_report_stack_overflow to signal stack overflow. This will avoid running pre-unwind handlers. * libguile/throw.h: Move scm_report_stack_overflow here. * libguile/throw.c (catch): Define a version of catch in C. (throw_without_pre_unwind): New helper. Besides serving as the pre-boot "throw" binding, it allows stack overflow to throw without running pre-unwind handlers. (scm_catch, scm_catch_with_pre_unwind_handler) (scm_with_throw_handler): Use the new catch in C. (scm_report_stack_overflow): Moved from stackchk.c; throws an unwind-only exception. * libguile/stackchk.h: * libguile/stackchk.c: Remove the scm_report_stack_overflow bits.
95 lines
2.3 KiB
C
95 lines
2.3 KiB
C
/* Copyright (C) 1995,1996,1997, 2000, 2001, 2006, 2008, 2010, 2011, 2014 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/ports.h"
|
||
#include "libguile/root.h"
|
||
#include "libguile/threads.h"
|
||
#include "libguile/dynwind.h"
|
||
|
||
#include "libguile/stackchk.h"
|
||
|
||
|
||
/* {Stack Checking}
|
||
*/
|
||
|
||
int scm_stack_checking_enabled_p;
|
||
|
||
static void
|
||
reset_scm_stack_checking_enabled_p (void *arg)
|
||
{
|
||
scm_stack_checking_enabled_p = (int)(scm_t_bits)arg;
|
||
}
|
||
|
||
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:
|
||
*/
|