| /* sigstack, sigaltstack definitions. |
| Copyright (C) 1998-2016 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef _SIGNAL_H |
| # error "Never include this file directly. Use <signal.h> instead" |
| #endif |
| |
| |
| /* Structure describing a signal stack (obsolete). */ |
| struct sigstack |
| { |
| __ptr_t ss_sp; /* Signal stack pointer. */ |
| int ss_onstack; /* Nonzero if executing on this stack. */ |
| }; |
| |
| |
| /* Alternate, preferred interface. */ |
| typedef struct sigaltstack |
| { |
| __ptr_t ss_sp; |
| size_t ss_size; |
| int ss_flags; |
| } stack_t; |
| |
| |
| /* Possible values for `ss_flags.'. */ |
| enum |
| { |
| SS_ONSTACK = 0x0001, |
| #define SS_ONSTACK SS_ONSTACK |
| SS_DISABLE = 0x0004 |
| #define SS_DISABLE SS_DISABLE |
| }; |
| |
| /* Minumum stack size for a signal handler. */ |
| #define MINSIGSTKSZ 8192 |
| |
| /* System default stack size. */ |
| #define SIGSTKSZ (MINSIGSTKSZ + 32768) |