projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| d5efd131 | 1 | /* sigstack, sigaltstack definitions. |
| bfff8b1b | 2 | Copyright (C) 1998-2017 Free Software Foundation, Inc. |
| d5efd131 MF |
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 | |
| 75efb018 MF |
16 | License along with the GNU C Library; if not, see |
| 17 | <http://www.gnu.org/licenses/>. */ | |
| d5efd131 | 18 | |
| c66b29f9 ZW |
19 | #ifndef _BITS_SIGSTACK_H |
| 20 | #define _BITS_SIGSTACK_H 1 | |
| 21 | ||
| 22 | #if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H | |
| d5efd131 MF |
23 | # error "Never include this file directly. Use <signal.h> instead" |
| 24 | #endif | |
| 25 | ||
| c66b29f9 ZW |
26 | #define __need_size_t |
| 27 | #include <stddef.h> | |
| d5efd131 MF |
28 | |
| 29 | /* Structure describing a signal stack (obsolete). */ | |
| 30 | struct sigstack | |
| 31 | { | |
| 32 | __ptr_t ss_sp; /* Signal stack pointer. */ | |
| 33 | int ss_onstack; /* Nonzero if executing on this stack. */ | |
| 34 | }; | |
| 35 | ||
| c66b29f9 ZW |
36 | /* Alternate, preferred interface. */ |
| 37 | typedef struct sigaltstack | |
| 38 | { | |
| 39 | __ptr_t ss_sp; | |
| 40 | int ss_flags; | |
| 41 | size_t ss_size; | |
| 42 | } stack_t; | |
| d5efd131 | 43 | |
| c66b29f9 | 44 | /* Possible values for `ss_flags'. */ |
| d5efd131 MF |
45 | enum |
| 46 | { | |
| 47 | SS_ONSTACK = 1, | |
| 48 | #define SS_ONSTACK SS_ONSTACK | |
| 49 | SS_DISABLE | |
| 50 | #define SS_DISABLE SS_DISABLE | |
| 51 | }; | |
| 52 | ||
| 53 | /* Minimum stack size for a signal handler. | |
| 54 | ||
| 55 | Yes, this should be 131072 but the constant got defined incorrectly | |
| 56 | in the kernel and we have to live with it. Users should in any case | |
| 57 | use SIGSTKSZ as the size user-supplied buffers should have. */ | |
| 58 | #define MINSIGSTKSZ 131027 | |
| 59 | ||
| 60 | /* System default stack size. */ | |
| 61 | #define SIGSTKSZ 262144 | |
| 62 | ||
| c66b29f9 | 63 | #endif /* bits/sigstack.h */ |