1/* 2 * Copyright (c) 2004 Marcel Moolenaar 3 * Copyright (c) 2011 Marius Strobl <marius@FreeBSD.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28#include <sys/cdefs.h> 29__FBSDID("$FreeBSD$"); 30 31#include <sys/types.h> 32#include <string.h> 33#include <thread_db.h> 34#include <ucontext.h> 35#include <machine/fsr.h> 36 37#include "libpthread_db.h" 38 39void 40pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc) 41{ 42 43 memcpy(&uc->uc_mcontext, r, MIN(sizeof(uc->uc_mcontext), sizeof(*r))); 44} 45 46void 47pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r) 48{ 49 50 memcpy(r, &uc->uc_mcontext, MIN(sizeof(uc->uc_mcontext), sizeof(*r))); 51} 52 53void 54pt_fpreg_to_ucontext(const struct fpreg* r, ucontext_t *uc) 55{ 56 mcontext_t *mc = &uc->uc_mcontext; 57 58 memcpy(mc->mc_fp, r->fr_regs, MIN(sizeof(mc->mc_fp), 59 sizeof(r->fr_regs))); 60 mc->_mc_fsr = r->fr_fsr; 61 mc->_mc_gsr = r->fr_gsr; 62 mc->_mc_fprs |= FPRS_FEF; 63} 64 65void 66pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r) 67{ 68 const mcontext_t *mc = &uc->uc_mcontext; 69 70 if ((mc->_mc_fprs & FPRS_FEF) != 0) { 71 memcpy(r->fr_regs, mc->mc_fp, MIN(sizeof(mc->mc_fp), 72 sizeof(r->fr_regs))); 73 r->fr_fsr = mc->_mc_fsr; 74 r->fr_gsr = mc->_mc_gsr; 75 } else 76 memset(r, 0, sizeof(*r)); 77} 78 79void 80pt_md_init(void) 81{ 82 83} 84 85int 86pt_reg_sstep(struct reg *reg __unused, int step __unused) 87{ 88 89 return (0); 90} 91