1 /* sigstack, sigaltstack definitions. 2 Copyright (C) 1998, 1999 Free Software Foundation, Inc. 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 16 License along with the GNU C Library; if not, see 17 <http://www.gnu.org/licenses/>. */ 18 19 #ifndef _SIGNAL_H 20 # error "Never include this file directly. Use <signal.h> instead" 21 #endif 22 23 24 #if defined __UCLIBC_SUSV4_LEGACY__ || !defined __UCLIBC_STRICT_HEADERS__ 25 /* Structure describing a signal stack (obsolete). */ 26 struct sigstack 27 { 28 void *ss_sp; /* Signal stack pointer. */ 29 int ss_onstack; /* Nonzero if executing on this stack. */ 30 }; 31 #endif 32 33 34 /* Possible values for `ss_flags.'. */ 35 enum 36 { 37 SS_ONSTACK = 1, 38 #define SS_ONSTACK SS_ONSTACK 39 SS_DISABLE 40 #define SS_DISABLE SS_DISABLE 41 }; 42 43 /* Minimum stack size for a signal handler. */ 44 #define MINSIGSTKSZ 2048 45 46 /* System default stack size. */ 47 #define SIGSTKSZ 8192 48 49 50 /* Alternate, preferred interface. */ 51 typedef struct sigaltstack 52 { 53 void *ss_sp; 54 int ss_flags; 55 size_t ss_size; 56 } stack_t; 57