| 1 | /* Copyright (C) 1995,1996,1997, 2000, 2001, 2006, 2008, 2010, 2011, 2014 Free Software Foundation, Inc. |
| 2 | * |
| 3 | * This library is free software; you can redistribute it and/or |
| 4 | * modify it under the terms of the GNU Lesser General Public License |
| 5 | * as published by the Free Software Foundation; either version 3 of |
| 6 | * the License, or (at your option) any later version. |
| 7 | * |
| 8 | * This library is distributed in the hope that it will be useful, but |
| 9 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 11 | * Lesser General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU Lesser General Public |
| 14 | * License along with this library; if not, write to the Free Software |
| 15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 16 | * 02110-1301 USA |
| 17 | */ |
| 18 | |
| 19 | |
| 20 | \f |
| 21 | #ifdef HAVE_CONFIG_H |
| 22 | # include <config.h> |
| 23 | #endif |
| 24 | |
| 25 | #include "libguile/_scm.h" |
| 26 | #include "libguile/ports.h" |
| 27 | #include "libguile/root.h" |
| 28 | #include "libguile/threads.h" |
| 29 | #include "libguile/dynwind.h" |
| 30 | |
| 31 | #include "libguile/stackchk.h" |
| 32 | \f |
| 33 | |
| 34 | /* {Stack Checking} |
| 35 | */ |
| 36 | |
| 37 | int scm_stack_checking_enabled_p; |
| 38 | |
| 39 | long |
| 40 | scm_stack_size (SCM_STACKITEM *start) |
| 41 | { |
| 42 | SCM_STACKITEM stack; |
| 43 | #if SCM_STACK_GROWS_UP |
| 44 | return &stack - start; |
| 45 | #else |
| 46 | return start - &stack; |
| 47 | #endif /* SCM_STACK_GROWS_UP */ |
| 48 | } |
| 49 | |
| 50 | |
| 51 | void |
| 52 | scm_stack_report () |
| 53 | { |
| 54 | SCM port = scm_current_error_port (); |
| 55 | SCM_STACKITEM stack; |
| 56 | scm_i_thread *thread = SCM_I_CURRENT_THREAD; |
| 57 | |
| 58 | scm_uintprint ((scm_stack_size (thread->continuation_base) |
| 59 | * sizeof (SCM_STACKITEM)), |
| 60 | 16, port); |
| 61 | scm_puts_unlocked (" of stack: 0x", port); |
| 62 | scm_uintprint ((scm_t_bits) thread->continuation_base, 16, port); |
| 63 | scm_puts_unlocked (" - 0x", port); |
| 64 | scm_uintprint ((scm_t_bits) &stack, 16, port); |
| 65 | scm_puts_unlocked ("\n", port); |
| 66 | } |
| 67 | |
| 68 | |
| 69 | SCM_DEFINE (scm_sys_get_stack_size, "%get-stack-size", 0, 0, 0, |
| 70 | (), |
| 71 | "Return the current thread's C stack size (in Scheme objects).") |
| 72 | #define FUNC_NAME s_scm_sys_get_stack_size |
| 73 | { |
| 74 | return scm_from_long (scm_stack_size (SCM_I_CURRENT_THREAD->base)); |
| 75 | } |
| 76 | #undef FUNC_NAME |
| 77 | |
| 78 | |
| 79 | void |
| 80 | scm_init_stackchk () |
| 81 | { |
| 82 | #include "libguile/stackchk.x" |
| 83 | } |
| 84 | |
| 85 | /* |
| 86 | Local Variables: |
| 87 | c-file-style: "gnu" |
| 88 | End: |
| 89 | */ |