1 /*- 2 * Copyright (c) 2021 The DragonFly Project. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the 13 * distribution. 14 * 3. Neither the name of The DragonFly Project nor the names of its 15 * contributors may be used to endorse or promote products derived 16 * from this software without specific, prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 22 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 23 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 28 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 32 #ifndef _SYS__UCONTEXT_H_ 33 #define _SYS__UCONTEXT_H_ 34 35 #include <sys/_sigset.h> 36 37 #include <machine/ucontext.h> 38 39 #ifndef _SIGSET_T_DECLARED 40 typedef struct __sigset sigset_t; 41 #define _SIGSET_T_DECLARED 42 #endif 43 44 #ifndef _SIZE_T_DECLARED 45 typedef __size_t size_t; 46 #define _SIZE_T_DECLARED 47 #endif 48 49 #ifndef _STACK_T_DECLARED 50 #if __BSD_VISIBLE 51 typedef struct sigaltstack { 52 #else /* !__BSD_VISIBLE */ 53 typedef struct { 54 #endif /* __BSD_VISIBLE */ 55 void *ss_sp; /* signal stack base */ 56 size_t ss_size; /* signal stack length */ 57 int ss_flags; /* SS_DISABLE and/or SS_ONSTACK */ 58 } stack_t; 59 #define _STACK_T_DECLARED 60 #endif 61 62 typedef struct __ucontext { 63 /* 64 * Keep the order of the first two fields. Also, 65 * keep them the first two fields in the structure. 66 * This way we can have a union with struct 67 * sigcontext and ucontext_t. This allows us to 68 * support them both at the same time. 69 * note: the union is not defined, though. 70 */ 71 sigset_t uc_sigmask; 72 mcontext_t uc_mcontext; 73 74 struct __ucontext *uc_link; 75 stack_t uc_stack; 76 void (*uc_cofunc)(struct __ucontext *, void *); 77 void *uc_arg; 78 int __spare__[4]; 79 } ucontext_t; 80 81 #endif /* !_SYS__UCONTEXT_H_ */ 82