| /* sigstack, sigaltstack definitions. |
| Copyright (C) 1998, 2000, 2002, 2003 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, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| #ifndef _SIGNAL_H |
| # error "Never include this file directly. Use <signal.h> instead" |
| #endif |
| |
| #ifndef _SIGSTACK_H |
| #define _SIGSTACK_H 1 |
| |
| /* Structure describing a signal stack (obsolete). */ |
| struct sigstack |
| { |
| __ptr_t ss_sp; /* Signal stack pointer. */ |
| int ss_onstack; /* Nonzero if executing on this stack. */ |
| }; |
| |
| |
| /* Possible values for `ss_flags.'. */ |
| enum |
| { |
| SS_ONSTACK = 1, |
| #define SS_ONSTACK SS_ONSTACK |
| SS_DISABLE |
| #define SS_DISABLE SS_DISABLE |
| }; |
| |
| /* Minimum stack size for a signal handler. |
| |
| Yes, this should be 131072 but the constant got defined incorrectly |
| in the kernel and we have to live with it. Users should in any case |
| use SIGSTKSZ as the size user-supplied buffers should have. */ |
| #define MINSIGSTKSZ 131027 |
| |
| /* System default stack size. */ |
| #define SIGSTKSZ 262144 |
| |
| |
| /* Alternate, preferred interface. */ |
| typedef struct sigaltstack |
| { |
| __ptr_t ss_sp; |
| int ss_flags; |
| size_t ss_size; |
| } stack_t; |
| |
| #endif /* bits/sigstack.h */ |
