1*e7776783SApple OSS Distributions /*
2*e7776783SApple OSS Distributions * Copyright (c) 2012 Apple Inc. All rights reserved.
3*e7776783SApple OSS Distributions *
4*e7776783SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*e7776783SApple OSS Distributions *
6*e7776783SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*e7776783SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*e7776783SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*e7776783SApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*e7776783SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*e7776783SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*e7776783SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*e7776783SApple OSS Distributions * terms of an Apple operating system software license agreement.
14*e7776783SApple OSS Distributions *
15*e7776783SApple OSS Distributions * Please obtain a copy of the License at
16*e7776783SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*e7776783SApple OSS Distributions *
18*e7776783SApple OSS Distributions * The Original Code and all software distributed under the License are
19*e7776783SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*e7776783SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*e7776783SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*e7776783SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*e7776783SApple OSS Distributions * Please see the License for the specific language governing rights and
24*e7776783SApple OSS Distributions * limitations under the License.
25*e7776783SApple OSS Distributions *
26*e7776783SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*e7776783SApple OSS Distributions */
28*e7776783SApple OSS Distributions #include <debug.h>
29*e7776783SApple OSS Distributions #include <mach/mach_types.h>
30*e7776783SApple OSS Distributions #include <mach/kern_return.h>
31*e7776783SApple OSS Distributions #include <mach/thread_status.h>
32*e7776783SApple OSS Distributions #include <kern/thread.h>
33*e7776783SApple OSS Distributions #include <arm/vmparam.h>
34*e7776783SApple OSS Distributions #include <arm/cpu_data_internal.h>
35*e7776783SApple OSS Distributions
36*e7776783SApple OSS Distributions /*
37*e7776783SApple OSS Distributions * Copy values from saved_state to ts32.
38*e7776783SApple OSS Distributions */
39*e7776783SApple OSS Distributions void
saved_state_to_thread_state32(const arm_saved_state_t * saved_state,arm_thread_state32_t * ts32)40*e7776783SApple OSS Distributions saved_state_to_thread_state32(const arm_saved_state_t *saved_state, arm_thread_state32_t *ts32)
41*e7776783SApple OSS Distributions {
42*e7776783SApple OSS Distributions uint32_t i;
43*e7776783SApple OSS Distributions
44*e7776783SApple OSS Distributions assert(is_saved_state32(saved_state));
45*e7776783SApple OSS Distributions
46*e7776783SApple OSS Distributions ts32->lr = (uint32_t)get_saved_state_lr(saved_state);
47*e7776783SApple OSS Distributions ts32->sp = (uint32_t)get_saved_state_sp(saved_state);
48*e7776783SApple OSS Distributions ts32->pc = (uint32_t)get_saved_state_pc(saved_state);
49*e7776783SApple OSS Distributions ts32->cpsr = get_saved_state_cpsr(saved_state);
50*e7776783SApple OSS Distributions for (i = 0; i < 13; i++) {
51*e7776783SApple OSS Distributions ts32->r[i] = (uint32_t)get_saved_state_reg(saved_state, i);
52*e7776783SApple OSS Distributions }
53*e7776783SApple OSS Distributions }
54*e7776783SApple OSS Distributions
55*e7776783SApple OSS Distributions /*
56*e7776783SApple OSS Distributions * Copy values from ts32 to saved_state.
57*e7776783SApple OSS Distributions */
58*e7776783SApple OSS Distributions void
thread_state32_to_saved_state(const arm_thread_state32_t * ts32,arm_saved_state_t * saved_state)59*e7776783SApple OSS Distributions thread_state32_to_saved_state(const arm_thread_state32_t *ts32, arm_saved_state_t *saved_state)
60*e7776783SApple OSS Distributions {
61*e7776783SApple OSS Distributions uint32_t i;
62*e7776783SApple OSS Distributions
63*e7776783SApple OSS Distributions assert(is_saved_state32(saved_state));
64*e7776783SApple OSS Distributions
65*e7776783SApple OSS Distributions set_saved_state_lr(saved_state, ts32->lr);
66*e7776783SApple OSS Distributions set_saved_state_sp(saved_state, ts32->sp);
67*e7776783SApple OSS Distributions set_saved_state_pc(saved_state, ts32->pc);
68*e7776783SApple OSS Distributions
69*e7776783SApple OSS Distributions #if defined(__arm64__)
70*e7776783SApple OSS Distributions set_saved_state_cpsr(saved_state, (ts32->cpsr & ~PSR64_MODE_MASK) | PSR64_MODE_RW_32);
71*e7776783SApple OSS Distributions #elif defined(__arm__)
72*e7776783SApple OSS Distributions set_saved_state_cpsr(saved_state, (ts32->cpsr & ~PSR_USER_MASK) | (ts32->cpsr & PSR_USER_MASK));
73*e7776783SApple OSS Distributions #else
74*e7776783SApple OSS Distributions #error Unknown architecture.
75*e7776783SApple OSS Distributions #endif
76*e7776783SApple OSS Distributions
77*e7776783SApple OSS Distributions for (i = 0; i < 13; i++) {
78*e7776783SApple OSS Distributions set_saved_state_reg(saved_state, i, ts32->r[i]);
79*e7776783SApple OSS Distributions }
80*e7776783SApple OSS Distributions }
81