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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SIGJMP_STRUCT_H 28 #define _SIGJMP_STRUCT_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 #include <sys/types.h> 37 #include <sys/stack.h> 38 #include <ucontext.h> 39 #include <setjmp.h> 40 41 #if defined(__sparc) 42 43 /* 44 * The following structure MUST match the ABI size specifier _SIGJBLEN. 45 * This is 19 (longs). The ABI value for _JBLEN is 12 (longs). 46 * A greg_t is a long. A sigset_t is 4 ints and a stack_t is 3 longs. 47 * 48 * The layout of this structure must match the layout of the same 49 * structures defined in usr/src/lib/libbc/libc/sys/common/ucontext.h 50 * and usr/src/ucblib/libucb/sparc/sys/setjmp.c. Other than that, 51 * the layout is private, not known to applications. 52 * 53 * We make the first 5 members match the implementations of 54 * setjmp()/longjmp(), so that an application could (stupidly) 55 * do sigsetjmp(env) followed by longjmp(env) (but not setjmp(env) 56 * followed by siglongjmp(env)). 57 */ 58 typedef struct { 59 int sjs_flags; /* JBUF[ 0] */ 60 greg_t sjs_sp; /* JBUF[ 1] */ 61 greg_t sjs_pc; /* JBUF[ 2] */ 62 greg_t sjs_fp; /* JBUF[ 3] */ 63 greg_t sjs_i7; /* JBUF[ 4] */ 64 ucontext_t *sjs_uclink; 65 ulong_t sjs_pad[_JBLEN - 6]; 66 sigset_t sjs_sigmask; 67 #if defined(_LP64) 68 ulong_t sjs_pad1[2]; 69 #endif 70 stack_t sjs_stack; 71 } sigjmp_struct_t; 72 73 #define JB_SAVEMASK 0x1 74 #define JB_FRAMEPTR 0x2 75 76 #endif /* __sparc */ 77 78 #ifdef __cplusplus 79 } 80 #endif 81 82 #endif /* _SIGJMP_STRUCT_H */ 83