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0f2d19dd JB |
1 | /* classes: h_files */ |
2 | ||
0527e687 DH |
3 | #ifndef SCM_STACKCHK_H |
4 | #define SCM_STACKCHK_H | |
5 | ||
6 | /* Copyright (C) 1995,1996,1998,2000 Free Software Foundation, Inc. | |
7 | * | |
73be1d9e MV |
8 | * This library is free software; you can redistribute it and/or |
9 | * modify it under the terms of the GNU Lesser General Public | |
10 | * License as published by the Free Software Foundation; either | |
11 | * version 2.1 of the License, or (at your option) any later version. | |
0527e687 | 12 | * |
73be1d9e | 13 | * This library is distributed in the hope that it will be useful, |
0f2d19dd | 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
73be1d9e MV |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
16 | * Lesser General Public License for more details. | |
0527e687 | 17 | * |
73be1d9e MV |
18 | * You should have received a copy of the GNU Lesser General Public |
19 | * License along with this library; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
21 | */ | |
0527e687 | 22 | |
0f2d19dd | 23 | \f |
0527e687 | 24 | |
b4309c3c | 25 | #include "libguile/__scm.h" |
0f2d19dd | 26 | |
dfc40e20 | 27 | #include "libguile/continuations.h" |
dfc40e20 | 28 | #include "libguile/debug.h" |
d0f6ceb8 | 29 | |
0f2d19dd JB |
30 | \f |
31 | ||
d0f6ceb8 | 32 | /* With debug options we have the possibility to disable stack checking. |
39f1ef51 | 33 | */ |
39f1ef51 | 34 | #define SCM_STACK_CHECKING_P SCM_STACK_LIMIT |
39f1ef51 MD |
35 | |
36 | #ifdef STACK_CHECKING | |
6c4eb8e1 | 37 | # if SCM_STACK_GROWS_UP |
39f1ef51 | 38 | # define SCM_STACK_OVERFLOW_P(s)\ |
574f95b6 | 39 | (s > ((SCM_STACKITEM *) SCM_BASE (scm_rootcont) + SCM_STACK_LIMIT)) |
0f2d19dd | 40 | # else |
39f1ef51 | 41 | # define SCM_STACK_OVERFLOW_P(s)\ |
574f95b6 | 42 | (s < ((SCM_STACKITEM *) SCM_BASE (scm_rootcont) - SCM_STACK_LIMIT)) |
0f2d19dd JB |
43 | # endif |
44 | # define SCM_CHECK_STACK\ | |
45 | {\ | |
46 | SCM_STACKITEM stack;\ | |
39f1ef51 | 47 | if (SCM_STACK_OVERFLOW_P (&stack) && scm_stack_checking_enabled_p)\ |
0f2d19dd JB |
48 | scm_report_stack_overflow ();\ |
49 | } | |
50 | #else | |
51 | # define SCM_CHECK_STACK /**/ | |
39f1ef51 | 52 | #endif /* STACK_CHECKING */ |
0f2d19dd | 53 | |
33b001fd | 54 | SCM_API int scm_stack_checking_enabled_p; |
0f2d19dd JB |
55 | |
56 | \f | |
0f2d19dd | 57 | |
33b001fd MV |
58 | SCM_API void scm_report_stack_overflow (void); |
59 | SCM_API long scm_stack_size (SCM_STACKITEM *start); | |
60 | SCM_API void scm_stack_report (void); | |
61 | SCM_API void scm_init_stackchk (void); | |
0f2d19dd | 62 | |
0527e687 | 63 | #endif /* SCM_STACKCHK_H */ |
89e00824 ML |
64 | |
65 | /* | |
66 | Local Variables: | |
67 | c-file-style: "gnu" | |
68 | End: | |
69 | */ |