1 /* struct ucontext definition. 2 Copyright (C) 2022 Free Software Foundation, Inc. 3 4 This file is part of the GNU C Library. 5 6 The GNU C Library is free software; you can redistribute it and/or 7 modify it under the terms of the GNU Lesser General Public 8 License as published by the Free Software Foundation; either 9 version 2.1 of the License, or (at your option) any later version. 10 11 The GNU C Library is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 Lesser General Public License for more details. 15 16 You should have received a copy of the GNU Lesser General Public 17 License along with the GNU C Library. If not, see 18 <https://www.gnu.org/licenses/>. */ 19 20 /* Don't rely on this, the interface is currently messed up and may need to 21 be broken to be fixed. */ 22 #ifndef _SYS_UCONTEXT_H 23 #define _SYS_UCONTEXT_H 1 24 25 #include <features.h> 26 27 #include <bits/types/sigset_t.h> 28 #include <bits/types/stack_t.h> 29 30 #ifdef __USE_MISC 31 #define LARCH_NGREG 32 32 33 #define LARCH_REG_RA 1 34 #define LARCH_REG_SP 3 35 #define LARCH_REG_S0 23 36 #define LARCH_REG_S1 24 37 #define LARCH_REG_A0 4 38 #define LARCH_REG_S2 25 39 #define LARCH_REG_NARGS 8 40 41 typedef unsigned long int greg_t; 42 /* Container for all general registers. */ 43 typedef greg_t gregset_t[32]; 44 #endif 45 46 typedef struct mcontext_t 47 { 48 unsigned long long __pc; 49 unsigned long long __gregs[32]; 50 unsigned int __flags; 51 unsigned long long __extcontext[0] __attribute__((__aligned__(16))); 52 } mcontext_t; 53 54 /* Userlevel context. */ 55 typedef struct ucontext_t 56 { 57 unsigned long int __uc_flags; 58 struct ucontext_t *uc_link; 59 stack_t uc_stack; 60 sigset_t uc_sigmask; 61 mcontext_t uc_mcontext; 62 } ucontext_t; 63 64 #endif /* sys/ucontext.h */ 65