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 * Copyright 2023 Oxide Computer Company 28 * 29 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 30 * Use is subject to license terms. 31 */ 32 33 #ifndef _UCONTEXT_H 34 #define _UCONTEXT_H 35 36 #include <sys/ucontext.h> 37 /* 38 * The file sys/regset.h defines indices in the gregset_t array, 39 * such as EIP on i386. Those defines were historically exposed 40 * via sys/ucontext.h, sys/signal.h, etc. which caused surprises 41 * due to those defines unexpectedly polluting the namespace. 42 * On the other hand, several existing applications assume that 43 * the regset names are defined after an include <ucontext.h>. 44 * To solve both problems at once: <ucontext.h> (this file) 45 * DOES include sys/regset.h for you but <sys/ucontext.h> 46 * does NOT include sys/regset.h anymore. 47 */ 48 #if !defined(_XPG4_2) || defined(__EXTENSIONS__) 49 #include <sys/regset.h> 50 #include <sys/siginfo.h> 51 #include <inttypes.h> 52 #endif 53 54 #ifdef __cplusplus 55 extern "C" { 56 #endif 57 58 #ifdef __sparc 59 #ifdef __PRAGMA_REDEFINE_EXTNAME 60 #pragma redefine_extname makecontext __makecontext_v2 61 #else 62 #define makecontext __makecontext_v2 63 #endif 64 #endif 65 66 extern int getcontext(ucontext_t *) __RETURNS_TWICE; 67 #pragma unknown_control_flow(getcontext) 68 extern int setcontext(const ucontext_t *); 69 extern int swapcontext(ucontext_t *_RESTRICT_KYWD, 70 const ucontext_t *_RESTRICT_KYWD); 71 extern void makecontext(ucontext_t *, void(*)(), int, ...); 72 73 #if !defined(_XPG4_2) || defined(__EXTENSIONS__) 74 extern ucontext_t *ucontext_alloc(uint32_t); 75 extern void ucontext_free(ucontext_t *); 76 extern int getcontext_extd(ucontext_t *, uint32_t) __RETURNS_TWICE; 77 #pragma unknown_control_flow(getcontext_extd) 78 extern int swapcontext_extd(ucontext_t *_RESTRICT_KYWD, uint32_t, 79 const ucontext_t *_RESTRICT_KYWD); 80 extern int walkcontext(const ucontext_t *, int (*)(uintptr_t, int, void *), 81 void *); 82 extern int printstack(int); 83 extern int addrtosymstr(void *, char *, int); 84 extern int getustack(stack_t **); 85 extern int setustack(stack_t *); 86 87 extern int stack_getbounds(stack_t *); 88 extern int stack_setbounds(const stack_t *); 89 extern int stack_inbounds(void *); 90 extern int stack_violation(int, const siginfo_t *, const ucontext_t *); 91 92 extern void *_stack_grow(void *); 93 #endif /* !_XPG4_2 || __EXTENSIONS__ */ 94 95 #ifdef __cplusplus 96 } 97 #endif 98 99 #endif /* _UCONTEXT_H */ 100