| | 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 | */ |
| | 40 | void |
| | 41 | saved_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 | */ |
| | 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_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 | |
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