1 /* 2 * Copyright (c) 2006 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <sys/types.h> 31 #include <string.h> 32 #include <thread_db.h> 33 34 #include "libpthread_db.h" 35 36 void 37 pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc) 38 { 39 mcontext_t *mc = &uc->uc_mcontext; 40 41 memcpy(mc->mc_frame, r, MIN(sizeof(mc->mc_frame), sizeof(*r))); 42 } 43 44 void 45 pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r) 46 { 47 const mcontext_t *mc = &uc->uc_mcontext; 48 49 memcpy(r, mc->mc_frame, MIN(sizeof(mc->mc_frame), sizeof(*r))); 50 } 51 52 void 53 pt_fpreg_to_ucontext(const struct fpreg *r, ucontext_t *uc) 54 { 55 mcontext_t *mc = &uc->uc_mcontext; 56 57 memcpy(mc->mc_fpreg, r, MIN(sizeof(mc->mc_fpreg), sizeof(*r))); 58 mc->mc_flags |= _MC_FP_VALID; 59 } 60 61 void 62 pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r) 63 { 64 const mcontext_t *mc = &uc->uc_mcontext; 65 66 if (mc->mc_flags & _MC_FP_VALID) 67 memcpy(r, mc->mc_fpreg, MIN(sizeof(mc->mc_fpreg), sizeof(*r))); 68 else 69 memset(r, 0, sizeof(*r)); 70 } 71 72 void 73 pt_md_init(void) 74 { 75 } 76 77 int 78 pt_reg_sstep(struct reg *reg __unused, int step __unused) 79 { 80 81 /* XXX */ 82 return (0); 83 } 84