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author | Jim Blandy <jimb@red-bean.com> | 1996-07-25 22:56:11 +0000 |
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committer | Jim Blandy <jimb@red-bean.com> | 1996-07-25 22:56:11 +0000 |
commit | 0f2d19dd46f83f41177f61d585732b32a866d613 (patch) | |
tree | 86bf67b8c05d36d8181d393e7d706785a74ee777 /libguile/stackchk.c | |
download | guile-0f2d19dd46f83f41177f61d585732b32a866d613.tar.gz |
maintainer changed: was lord, now jimb; first import
Diffstat (limited to 'libguile/stackchk.c')
-rw-r--r-- | libguile/stackchk.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/libguile/stackchk.c b/libguile/stackchk.c new file mode 100644 index 000000000..53a7556be --- /dev/null +++ b/libguile/stackchk.c @@ -0,0 +1,112 @@ +/* Copyright (C) 1995,1996 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, 675 Mass Ave, Cambridge, MA 02139, 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. + */ + + +#include <stdio.h> +#include "_scm.h" + + + +/* {Stack Checking} + */ + +#ifdef SCM_STACK_CHECK +int scm_check_stack_p; + +void +scm_report_stack_overflow () +{ + scm_check_stack_p = 0; + scm_wta (SCM_UNDEFINED, (char *) STACK_SCM_OVSCM_FLOW, NULL); +} + +#endif +#ifdef __STDC__ +long +scm_stack_size (SCM_STACKITEM *start) +#else +long +scm_stack_size (start) + SCM_STACKITEM *start; +#endif +{ + SCM_STACKITEM stack; +#ifdef SCM_STACK_GROWS_UP + return &stack - start; +#else + return start - &stack; +#endif /* def SCM_STACK_GROWS_UP */ +} + +#ifdef __STDC__ +void +scm_stack_report (void) +#else +void +scm_stack_report () +#endif +{ + SCM_STACKITEM stack; + scm_intprint (scm_stack_size (SCM_BASE (scm_rootcont)) * sizeof (SCM_STACKITEM), + 16, scm_cur_errp); + scm_gen_puts (scm_regular_string, " of stack: 0x", scm_cur_errp); + scm_intprint ((long) SCM_BASE (scm_rootcont), 16, scm_cur_errp); + scm_gen_puts (scm_regular_string, " - 0x", scm_cur_errp); + scm_intprint ((long) &stack, 16, scm_cur_errp); + scm_gen_puts (scm_regular_string, "\n", scm_cur_errp); +} + + + +#ifdef __STDC__ +void +scm_init_stackchk (void) +#else +void +scm_init_stackchk () +#endif +{ +#ifdef SCM_STACK_CHECK + scm_check_stack_p = 1; +#endif +#include "stackchk.x" +} + |