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Diffstat (limited to 'libguile/stackchk.c')
-rw-r--r-- | libguile/stackchk.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/libguile/stackchk.c b/libguile/stackchk.c new file mode 100644 index 000000000..a9bf133c2 --- /dev/null +++ b/libguile/stackchk.c @@ -0,0 +1,87 @@ +/* Copyright 1995-1997,2000-2001,2006,2008,2010-2011,2014,2018 + Free Software Foundation, Inc. + + This file is part of Guile. + + Guile 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. + + Guile 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 Guile. If not, see + <https://www.gnu.org/licenses/>. */ + + + + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include "dynwind.h" +#include "gsubr.h" +#include "numbers.h" +#include "ports.h" +#include "threads.h" + +#include "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_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 "stackchk.x" +} |