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0674eb08 | 1 | /* sigstack, sigaltstack definitions. |
b168057a | 2 | Copyright (C) 1998-2015 Free Software Foundation, Inc. |
0674eb08 UD |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
17 | <http://www.gnu.org/licenses/>. */ | |
0674eb08 UD |
18 | |
19 | #ifndef _SIGNAL_H | |
20 | # error "Never include this file directly. Use <signal.h> instead" | |
21 | #endif | |
22 | ||
23 | ||
24 | /* Structure describing a signal stack (obsolete). */ | |
25 | struct sigstack | |
26 | { | |
27 | void *ss_sp; /* Signal stack pointer. */ | |
28 | int ss_onstack; /* Nonzero if executing on this stack. */ | |
29 | }; | |
30 | ||
31 | ||
32 | /* Possible values for `ss_flags.'. */ | |
33 | enum | |
34 | { | |
35 | SS_ONSTACK = 1, | |
36 | #define SS_ONSTACK SS_ONSTACK | |
37 | SS_DISABLE | |
38 | #define SS_DISABLE SS_DISABLE | |
39 | }; | |
40 | ||
41 | /* Minimum stack size for a signal handler. */ | |
42 | #define MINSIGSTKSZ 4096 | |
43 | ||
44 | /* System default stack size. */ | |
45 | #define SIGSTKSZ 16384 | |
46 | ||
47 | ||
48 | /* Alternate, preferred interface. */ | |
49 | typedef struct sigaltstack | |
50 | { | |
51 | void *ss_sp; | |
52 | int ss_flags; | |
53 | size_t ss_size; | |
54 | } stack_t; |