1*2c2f96dcSApple OSS Distributions /*
2*2c2f96dcSApple OSS Distributions * Copyright (c) 2012-2021 Apple Inc. All rights reserved.
3*2c2f96dcSApple OSS Distributions *
4*2c2f96dcSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*2c2f96dcSApple OSS Distributions *
6*2c2f96dcSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*2c2f96dcSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*2c2f96dcSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*2c2f96dcSApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*2c2f96dcSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*2c2f96dcSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*2c2f96dcSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*2c2f96dcSApple OSS Distributions * terms of an Apple operating system software license agreement.
14*2c2f96dcSApple OSS Distributions *
15*2c2f96dcSApple OSS Distributions * Please obtain a copy of the License at
16*2c2f96dcSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*2c2f96dcSApple OSS Distributions *
18*2c2f96dcSApple OSS Distributions * The Original Code and all software distributed under the License are
19*2c2f96dcSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*2c2f96dcSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*2c2f96dcSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*2c2f96dcSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*2c2f96dcSApple OSS Distributions * Please see the License for the specific language governing rights and
24*2c2f96dcSApple OSS Distributions * limitations under the License.
25*2c2f96dcSApple OSS Distributions *
26*2c2f96dcSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*2c2f96dcSApple OSS Distributions */
28*2c2f96dcSApple OSS Distributions #include <debug.h>
29*2c2f96dcSApple OSS Distributions #include <mach/mach_types.h>
30*2c2f96dcSApple OSS Distributions #include <mach/kern_return.h>
31*2c2f96dcSApple OSS Distributions #include <mach/thread_status.h>
32*2c2f96dcSApple OSS Distributions #include <kern/thread.h>
33*2c2f96dcSApple OSS Distributions #include <arm/vmparam.h>
34*2c2f96dcSApple OSS Distributions #include <arm/cpu_data_internal.h>
35*2c2f96dcSApple OSS Distributions
36*2c2f96dcSApple OSS Distributions /*
37*2c2f96dcSApple OSS Distributions * Copy values from saved_state to ts32.
38*2c2f96dcSApple OSS Distributions */
39*2c2f96dcSApple OSS Distributions void
saved_state_to_thread_state32(const arm_saved_state_t * saved_state,arm_thread_state32_t * ts32)40*2c2f96dcSApple OSS Distributions saved_state_to_thread_state32(const arm_saved_state_t *saved_state, arm_thread_state32_t *ts32)
41*2c2f96dcSApple OSS Distributions {
42*2c2f96dcSApple OSS Distributions uint32_t i;
43*2c2f96dcSApple OSS Distributions
44*2c2f96dcSApple OSS Distributions assert(is_saved_state32(saved_state));
45*2c2f96dcSApple OSS Distributions
46*2c2f96dcSApple OSS Distributions ts32->lr = (uint32_t)get_saved_state_lr(saved_state);
47*2c2f96dcSApple OSS Distributions ts32->sp = (uint32_t)get_saved_state_sp(saved_state);
48*2c2f96dcSApple OSS Distributions ts32->pc = (uint32_t)get_saved_state_pc(saved_state);
49*2c2f96dcSApple OSS Distributions ts32->cpsr = get_saved_state_cpsr(saved_state);
50*2c2f96dcSApple OSS Distributions for (i = 0; i < 13; i++) {
51*2c2f96dcSApple OSS Distributions ts32->r[i] = (uint32_t)get_saved_state_reg(saved_state, i);
52*2c2f96dcSApple OSS Distributions }
53*2c2f96dcSApple OSS Distributions }
54*2c2f96dcSApple OSS Distributions
55*2c2f96dcSApple OSS Distributions /*
56*2c2f96dcSApple OSS Distributions * Copy values from ts32 to saved_state.
57*2c2f96dcSApple OSS Distributions */
58*2c2f96dcSApple OSS Distributions void
thread_state32_to_saved_state(const arm_thread_state32_t * ts32,arm_saved_state_t * saved_state)59*2c2f96dcSApple OSS Distributions thread_state32_to_saved_state(const arm_thread_state32_t *ts32, arm_saved_state_t *saved_state)
60*2c2f96dcSApple OSS Distributions {
61*2c2f96dcSApple OSS Distributions uint32_t i;
62*2c2f96dcSApple OSS Distributions
63*2c2f96dcSApple OSS Distributions assert(is_saved_state32(saved_state));
64*2c2f96dcSApple OSS Distributions
65*2c2f96dcSApple OSS Distributions set_user_saved_state_lr(saved_state, ts32->lr);
66*2c2f96dcSApple OSS Distributions set_saved_state_sp(saved_state, ts32->sp);
67*2c2f96dcSApple OSS Distributions set_user_saved_state_pc(saved_state, ts32->pc);
68*2c2f96dcSApple OSS Distributions
69*2c2f96dcSApple OSS Distributions #if defined(__arm64__)
70*2c2f96dcSApple OSS Distributions set_user_saved_state_cpsr(saved_state, (ts32->cpsr & ~PSR64_MODE_MASK) | PSR64_MODE_RW_32);
71*2c2f96dcSApple OSS Distributions #else
72*2c2f96dcSApple OSS Distributions #error Unknown architecture.
73*2c2f96dcSApple OSS Distributions #endif
74*2c2f96dcSApple OSS Distributions
75*2c2f96dcSApple OSS Distributions for (i = 0; i < 13; i++) {
76*2c2f96dcSApple OSS Distributions set_user_saved_state_reg(saved_state, i, ts32->r[i]);
77*2c2f96dcSApple OSS Distributions }
78*2c2f96dcSApple OSS Distributions }
79