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/types.h>
30 #include <string.h>
31 #include <thread_db.h>
32
33 #include "libpthread_db.h"
34
35 void
pt_reg_to_ucontext(const struct reg * r,ucontext_t * uc)36 pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc)
37 {
38 mcontext_t *mc = &uc->uc_mcontext;
39 __greg_t *gr = mc->__gregs;
40
41 gr[_REG_R0] = r->r[0];
42 gr[_REG_R1] = r->r[1];
43 gr[_REG_R2] = r->r[2];
44 gr[_REG_R3] = r->r[3];
45 gr[_REG_R4] = r->r[4];
46 gr[_REG_R5] = r->r[5];
47 gr[_REG_R6] = r->r[6];
48 gr[_REG_R7] = r->r[7];
49 gr[_REG_R8] = r->r[8];
50 gr[_REG_R9] = r->r[9];
51 gr[_REG_R10] = r->r[10];
52 gr[_REG_R11] = r->r[11];
53 gr[_REG_R12] = r->r[12];
54 gr[_REG_SP] = r->r_sp;
55 gr[_REG_LR] = r->r_lr;
56 gr[_REG_PC] = r->r_pc;
57 gr[_REG_CPSR] = r->r_cpsr;
58 }
59
60 void
pt_ucontext_to_reg(const ucontext_t * uc,struct reg * r)61 pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r)
62 {
63 const mcontext_t *mc = &uc->uc_mcontext;
64
65 const __greg_t *gr = mc->__gregs;
66
67 r->r[0] = gr[_REG_R0];
68 r->r[1] = gr[_REG_R1];
69 r->r[2] = gr[_REG_R2];
70 r->r[3] = gr[_REG_R3];
71 r->r[4] = gr[_REG_R4];
72 r->r[5] = gr[_REG_R5];
73 r->r[6] = gr[_REG_R6];
74 r->r[7] = gr[_REG_R7];
75 r->r[8] = gr[_REG_R8];
76 r->r[9] = gr[_REG_R9];
77 r->r[10] = gr[_REG_R10];
78 r->r[11] = gr[_REG_R11];
79 r->r[12] = gr[_REG_R12];
80 r->r_sp = gr[_REG_SP];
81 r->r_lr = gr[_REG_LR];
82 r->r_pc = gr[_REG_PC];
83 r->r_cpsr = gr[_REG_CPSR];
84 }
85
86 void
pt_fpreg_to_ucontext(const struct fpreg * r,ucontext_t * uc)87 pt_fpreg_to_ucontext(const struct fpreg *r, ucontext_t *uc)
88 {
89 mcontext_vfp_t *mc_vfp;
90
91 mc_vfp = uc->uc_mcontext.mc_vfp_ptr;
92
93 if (mc_vfp != NULL)
94 memcpy(mc_vfp, r, sizeof(*r));
95 }
96
97 void
pt_ucontext_to_fpreg(const ucontext_t * uc,struct fpreg * r)98 pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r)
99 {
100 mcontext_vfp_t *mc_vfp;
101
102 mc_vfp = uc->uc_mcontext.mc_vfp_ptr;
103
104 if (mc_vfp != NULL)
105 memcpy(r, &mc_vfp, sizeof(*r));
106 }
107
108 void
pt_md_init(void)109 pt_md_init(void)
110 {
111 }
112
113 int
pt_reg_sstep(struct reg * reg __unused,int step __unused)114 pt_reg_sstep(struct reg *reg __unused, int step __unused)
115 {
116
117 /* XXX */
118 return (0);
119 }
120