1/*
2 * Copyright (c) 2012-2021 Apple Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28#include <debug.h>
29#include <mach/mach_types.h>
30#include <mach/kern_return.h>
31#include <mach/thread_status.h>
32#include <kern/thread.h>
33#include <arm/vmparam.h>
34#include <arm/cpu_data_internal.h>
35
36/*
37 * Copy values from saved_state to ts32.
38 */
39void
40saved_state_to_thread_state32(const arm_saved_state_t *saved_state, arm_thread_state32_t *ts32)
41{
42 uint32_t i;
43
44 assert(is_saved_state32(saved_state));
45
46 ts32->lr = (uint32_t)get_saved_state_lr(iss: saved_state);
47 ts32->sp = (uint32_t)get_saved_state_sp(iss: saved_state);
48 ts32->pc = (uint32_t)get_saved_state_pc(iss: saved_state);
49 ts32->cpsr = get_saved_state_cpsr(iss: saved_state);
50 for (i = 0; i < 13; i++) {
51 ts32->r[i] = (uint32_t)get_saved_state_reg(iss: saved_state, reg: i);
52 }
53}
54
55/*
56 * Copy values from ts32 to saved_state.
57 */
58void
59thread_state32_to_saved_state(const arm_thread_state32_t *ts32, arm_saved_state_t *saved_state)
60{
61 uint32_t i;
62
63 assert(is_saved_state32(saved_state));
64
65 set_user_saved_state_lr(iss: saved_state, lr: ts32->lr);
66 set_saved_state_sp(iss: saved_state, sp: ts32->sp);
67 set_user_saved_state_pc(iss: saved_state, pc: ts32->pc);
68
69#if defined(__arm64__)
70 set_user_saved_state_cpsr(iss: saved_state, cpsr: (ts32->cpsr & ~PSR64_MODE_MASK) | PSR64_MODE_RW_32);
71#else
72#error Unknown architecture.
73#endif
74
75 for (i = 0; i < 13; i++) {
76 set_user_saved_state_reg(iss: saved_state, reg: i, value: ts32->r[i]);
77 }
78}
79