/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2008 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ /* Copyright (c) 1988 AT&T */ /* All Rights Reserved */ #include "lint.h" #include "thr_uberdata.h" #include #include #include "libc.h" #pragma weak _getcontext = getcontext int getcontext(ucontext_t *ucp) { greg_t *reg; ucp->uc_flags = UC_ALL; if (__getcontext(ucp)) return (-1); /* * Note that %o1 and %g1 are modified by the system call * routine. ABI calling conventions specify that the caller * cannot depend upon %o0 through %o5 nor %g1, so no effort is * made to maintain these registers. %o0 is forced to reflect * an affirmative return code. */ reg = ucp->uc_mcontext.gregs; reg[REG_SP] = getfp(); reg[REG_O7] = caller(); reg[REG_PC] = reg[REG_O7] + 8; reg[REG_nPC] = reg[REG_PC] + 4; reg[REG_O0] = 0; return (0); }