1/*
2 * Copyright (c) 2012 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 <kern/kalloc.h>
34#include <arm/vmparam.h>
35#include <arm/cpu_data_internal.h>
36
37/*
38 * Copy values from saved_state to ts32.
39 */
40void
41saved_state_to_thread_state32(const arm_saved_state_t *saved_state, arm_thread_state32_t *ts32)
42{
43 uint32_t i;
44
45 assert(is_saved_state32(saved_state));
46
47 ts32->lr = (uint32_t)get_saved_state_lr(saved_state);
48 ts32->sp = (uint32_t)get_saved_state_sp(saved_state);
49 ts32->pc = (uint32_t)get_saved_state_pc(saved_state);
50 ts32->cpsr = get_saved_state_cpsr(saved_state);
51 for (i = 0; i < 13; i++)
52 ts32->r[i] = (uint32_t)get_saved_state_reg(saved_state, i);
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_saved_state_lr(saved_state, ts32->lr);
66 set_saved_state_sp(saved_state, ts32->sp);
67 set_saved_state_pc(saved_state, ts32->pc);
68
69#if defined(__arm64__)
70 set_saved_state_cpsr(saved_state, (ts32->cpsr & ~PSR64_MODE_MASK) | PSR64_MODE_RW_32);
71#elif defined(__arm__)
72 set_saved_state_cpsr(saved_state, (ts32->cpsr & ~PSR_USER_MASK) | (ts32->cpsr & PSR_USER_MASK));
73#else
74#error Unknown architecture.
75#endif
76
77 for (i = 0; i < 13; i++)
78 set_saved_state_reg(saved_state, i, ts32->r[i]);
79}
80
81
82