2 * Copyright (c) 2006 Marcel Moolenaar
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
31 #include <sys/types.h>
32 #include <proc_service.h>
33 #include <thread_db.h>
35 #include "libpthread_db.h"
38 pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc)
40 mcontext_t *mc = &uc->uc_mcontext;
42 memcpy(mc->mc_frame, r, MIN(sizeof(mc->mc_frame), sizeof(*r)));
46 pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r)
48 const mcontext_t *mc = &uc->uc_mcontext;
50 memcpy(r, mc->mc_frame, MIN(sizeof(mc->mc_frame), sizeof(*r)));
54 pt_fpreg_to_ucontext(const struct fpreg *r, ucontext_t *uc)
56 mcontext_t *mc = &uc->uc_mcontext;
58 memcpy(mc->mc_fpreg, r, MIN(sizeof(mc->mc_fpreg), sizeof(*r)));
59 mc->mc_flags |= _MC_FP_VALID;
63 pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r)
65 const mcontext_t *mc = &uc->uc_mcontext;
67 if (mc->mc_flags & _MC_FP_VALID)
68 memcpy(r, mc->mc_fpreg, MIN(sizeof(mc->mc_fpreg), sizeof(*r)));
70 memset(r, 0, sizeof(*r));
79 pt_reg_sstep(struct reg *reg, int step)