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0f2d19dd JB |
1 | /* Copyright (C) 1995,1996 Free Software Foundation, Inc. |
2 | * | |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
15 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
16 | * | |
17 | * As a special exception, the Free Software Foundation gives permission | |
18 | * for additional uses of the text contained in its release of GUILE. | |
19 | * | |
20 | * The exception is that, if you link the GUILE library with other files | |
21 | * to produce an executable, this does not by itself cause the | |
22 | * resulting executable to be covered by the GNU General Public License. | |
23 | * Your use of that executable is in no way restricted on account of | |
24 | * linking the GUILE library code into it. | |
25 | * | |
26 | * This exception does not however invalidate any other reasons why | |
27 | * the executable file might be covered by the GNU General Public License. | |
28 | * | |
29 | * This exception applies only to the code released by the | |
30 | * Free Software Foundation under the name GUILE. If you copy | |
31 | * code from other Free Software Foundation releases into a copy of | |
32 | * GUILE, as the General Public License permits, the exception does | |
33 | * not apply to the code that you add in this way. To avoid misleading | |
34 | * anyone as to the status of such modified files, you must delete | |
35 | * this exception notice from them. | |
36 | * | |
37 | * If you write modifications of your own for GUILE, it is your choice | |
38 | * whether to permit this exception to apply to your modifications. | |
39 | * If you do not wish that, delete this exception notice. | |
40 | */ | |
41 | \f | |
42 | ||
43 | #include <stdio.h> | |
44 | #include "_scm.h" | |
20e6290e | 45 | #include "genio.h" |
0f2d19dd | 46 | |
20e6290e | 47 | #include "stackchk.h" |
0f2d19dd JB |
48 | \f |
49 | ||
50 | /* {Stack Checking} | |
51 | */ | |
52 | ||
39f1ef51 MD |
53 | #ifdef STACK_CHECKING |
54 | int scm_stack_checking_enabled_p; | |
0f2d19dd | 55 | |
523f5266 GH |
56 | SCM_SYMBOL (scm_stack_overflow_key, "stack-overflow"); |
57 | ||
0f2d19dd JB |
58 | void |
59 | scm_report_stack_overflow () | |
60 | { | |
39f1ef51 | 61 | scm_stack_checking_enabled_p = 0; |
01f61221 | 62 | scm_error (scm_stack_overflow_key, |
f5bf2977 GH |
63 | NULL, |
64 | "Stack overflow", | |
65 | SCM_BOOL_F, | |
66 | SCM_BOOL_F); | |
0f2d19dd JB |
67 | } |
68 | ||
69 | #endif | |
1cc91f1b | 70 | |
0f2d19dd JB |
71 | long |
72 | scm_stack_size (start) | |
73 | SCM_STACKITEM *start; | |
0f2d19dd JB |
74 | { |
75 | SCM_STACKITEM stack; | |
76 | #ifdef SCM_STACK_GROWS_UP | |
77 | return &stack - start; | |
78 | #else | |
79 | return start - &stack; | |
80 | #endif /* def SCM_STACK_GROWS_UP */ | |
81 | } | |
82 | ||
1cc91f1b | 83 | |
0f2d19dd JB |
84 | void |
85 | scm_stack_report () | |
0f2d19dd JB |
86 | { |
87 | SCM_STACKITEM stack; | |
88 | scm_intprint (scm_stack_size (SCM_BASE (scm_rootcont)) * sizeof (SCM_STACKITEM), | |
89 | 16, scm_cur_errp); | |
90 | scm_gen_puts (scm_regular_string, " of stack: 0x", scm_cur_errp); | |
91 | scm_intprint ((long) SCM_BASE (scm_rootcont), 16, scm_cur_errp); | |
92 | scm_gen_puts (scm_regular_string, " - 0x", scm_cur_errp); | |
93 | scm_intprint ((long) &stack, 16, scm_cur_errp); | |
94 | scm_gen_puts (scm_regular_string, "\n", scm_cur_errp); | |
95 | } | |
96 | ||
97 | ||
98 | ||
1cc91f1b | 99 | |
0f2d19dd JB |
100 | void |
101 | scm_init_stackchk () | |
0f2d19dd | 102 | { |
0f2d19dd JB |
103 | #include "stackchk.x" |
104 | } |