1 /* ucontext_t definition, OpenRISC version. 2 Copyright (C) 2022 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 <https://www.gnu.org/licenses/>. */ 18 19 /* System V/OpenRISC compliant context switching support. */ 20 21 #ifndef _SYS_UCONTEXT_H 22 #define _SYS_UCONTEXT_H 1 23 24 #include <features.h> 25 26 #include <bits/types/sigset_t.h> 27 #include <bits/types/stack_t.h> 28 29 /* Number of general registers. */ 30 #define __NGREG 32 31 #ifdef __USE_MISC 32 # define NGREG __NGREG 33 #endif 34 35 /* Context to describe whole processor state. */ 36 typedef struct 37 { 38 unsigned long int __gprs[__NGREG]; 39 unsigned long int __pc; 40 unsigned long int __sr; 41 } mcontext_t; 42 43 /* Userlevel context. */ 44 typedef struct ucontext_t 45 { 46 unsigned long int __uc_flags; 47 struct ucontext_t *uc_link; 48 stack_t uc_stack; 49 mcontext_t uc_mcontext; 50 sigset_t uc_sigmask; 51 } ucontext_t; 52 53 #endif /* sys/ucontext.h */ 54