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 | */ |
39 | void |
40 | saved_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 | */ |
58 | void |
59 | thread_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 | |