1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* Copyright (c) 1988 AT&T */ 22 /* All Rights Reserved */ 23 24 25 /* 26 * Copyright 2014 Garrett D'Amore <garrett@damore.org> 27 * 28 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 29 * Use is subject to license terms. 30 */ 31 32 #ifndef _UCONTEXT_H 33 #define _UCONTEXT_H 34 35 #include <sys/ucontext.h> 36 /* 37 * The file sys/regset.h defines indices in the gregset_t array, 38 * such as EIP on i386. Those defines were historically exposed 39 * via sys/ucontext.h, sys/signal.h, etc. which caused surprises 40 * due to those defines unexpectedly polluting the namespace. 41 * On the other hand, several existing applications assume that 42 * the regset names are defined after an include <ucontext.h>. 43 * To solve both problems at once: <ucontext.h> (this file) 44 * DOES include sys/regset.h for you but <sys/ucontext.h> 45 * does NOT include sys/regset.h anymore. 46 */ 47 #if !defined(_XPG4_2) || defined(__EXTENSIONS__) 48 #include <sys/regset.h> 49 #include <sys/siginfo.h> 50 #endif 51 52 #ifdef __cplusplus 53 extern "C" { 54 #endif 55 56 #ifdef __sparc 57 #ifdef __PRAGMA_REDEFINE_EXTNAME 58 #pragma redefine_extname makecontext __makecontext_v2 59 #else 60 #define makecontext __makecontext_v2 61 #endif 62 #endif 63 64 extern int getcontext(ucontext_t *) __RETURNS_TWICE; 65 #pragma unknown_control_flow(getcontext) 66 extern int setcontext(const ucontext_t *) __NORETURN; 67 extern int swapcontext(ucontext_t *_RESTRICT_KYWD, 68 const ucontext_t *_RESTRICT_KYWD); 69 extern void makecontext(ucontext_t *, void(*)(), int, ...); 70 71 #if !defined(_XPG4_2) || defined(__EXTENSIONS__) 72 extern int walkcontext(const ucontext_t *, int (*)(uintptr_t, int, void *), 73 void *); 74 extern int printstack(int); 75 extern int addrtosymstr(void *, char *, int); 76 extern int getustack(stack_t **); 77 extern int setustack(stack_t *); 78 79 extern int stack_getbounds(stack_t *); 80 extern int stack_setbounds(const stack_t *); 81 extern int stack_inbounds(void *); 82 extern int stack_violation(int, const siginfo_t *, const ucontext_t *); 83 84 extern void *_stack_grow(void *); 85 #endif /* !_XPG4_2 || __EXTENSIONS__ */ 86 87 #ifdef __cplusplus 88 } 89 #endif 90 91 #endif /* _UCONTEXT_H */ 92