1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2007 Olivier Houchard
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
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 AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 #include <sys/types.h>
31 #include <string.h>
32 #include <thread_db.h>
33
34 #include "libpthread_db.h"
35
36 void
pt_reg_to_ucontext(const struct reg * r,ucontext_t * uc)37 pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc)
38 {
39 mcontext_t *mc = &uc->uc_mcontext;
40 __greg_t *gr = mc->__gregs;
41
42 gr[_REG_R0] = r->r[0];
43 gr[_REG_R1] = r->r[1];
44 gr[_REG_R2] = r->r[2];
45 gr[_REG_R3] = r->r[3];
46 gr[_REG_R4] = r->r[4];
47 gr[_REG_R5] = r->r[5];
48 gr[_REG_R6] = r->r[6];
49 gr[_REG_R7] = r->r[7];
50 gr[_REG_R8] = r->r[8];
51 gr[_REG_R9] = r->r[9];
52 gr[_REG_R10] = r->r[10];
53 gr[_REG_R11] = r->r[11];
54 gr[_REG_R12] = r->r[12];
55 gr[_REG_SP] = r->r_sp;
56 gr[_REG_LR] = r->r_lr;
57 gr[_REG_PC] = r->r_pc;
58 gr[_REG_CPSR] = r->r_cpsr;
59 }
60
61 void
pt_ucontext_to_reg(const ucontext_t * uc,struct reg * r)62 pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r)
63 {
64 const mcontext_t *mc = &uc->uc_mcontext;
65
66 const __greg_t *gr = mc->__gregs;
67
68 r->r[0] = gr[_REG_R0];
69 r->r[1] = gr[_REG_R1];
70 r->r[2] = gr[_REG_R2];
71 r->r[3] = gr[_REG_R3];
72 r->r[4] = gr[_REG_R4];
73 r->r[5] = gr[_REG_R5];
74 r->r[6] = gr[_REG_R6];
75 r->r[7] = gr[_REG_R7];
76 r->r[8] = gr[_REG_R8];
77 r->r[9] = gr[_REG_R9];
78 r->r[10] = gr[_REG_R10];
79 r->r[11] = gr[_REG_R11];
80 r->r[12] = gr[_REG_R12];
81 r->r_sp = gr[_REG_SP];
82 r->r_lr = gr[_REG_LR];
83 r->r_pc = gr[_REG_PC];
84 r->r_cpsr = gr[_REG_CPSR];
85 }
86
87 void
pt_fpreg_to_ucontext(const struct fpreg * r,ucontext_t * uc)88 pt_fpreg_to_ucontext(const struct fpreg *r, ucontext_t *uc)
89 {
90 mcontext_vfp_t *mc_vfp;
91
92 mc_vfp = uc->uc_mcontext.mc_vfp_ptr;
93
94 if (mc_vfp != NULL)
95 memcpy(mc_vfp, r, sizeof(*r));
96 }
97
98 void
pt_ucontext_to_fpreg(const ucontext_t * uc,struct fpreg * r)99 pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r)
100 {
101 mcontext_vfp_t *mc_vfp;
102
103 mc_vfp = uc->uc_mcontext.mc_vfp_ptr;
104
105 if (mc_vfp != NULL)
106 memcpy(r, &mc_vfp, sizeof(*r));
107 }
108
109 void
pt_md_init(void)110 pt_md_init(void)
111 {
112 }
113
114 int
pt_reg_sstep(struct reg * reg __unused,int step __unused)115 pt_reg_sstep(struct reg *reg __unused, int step __unused)
116 {
117
118 /* XXX */
119 return (0);
120 }
121