1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ART_RUNTIME_ARCH_ARM64_ASM_SUPPORT_ARM64_S_
18#define ART_RUNTIME_ARCH_ARM64_ASM_SUPPORT_ARM64_S_
19
20#include "asm_support_arm64.h"
21
22// Define special registers.
23
24// Register holding Thread::Current().
25#define xSELF x19
26// Frame Pointer
27#define xFP   x29
28// Link Register
29#define xLR   x30
30// Define the intraprocedural linkage temporary registers.
31#define xIP0 x16
32#define wIP0 w16
33#define xIP1 x17
34#define wIP1 w17
35
36
37.macro ENTRY name
38    .type \name, #function
39    .hidden \name  // Hide this as a global symbol, so we do not incur plt calls.
40    .global \name
41    /* Cache alignment for function entry */
42    .balign 16
43\name:
44    .cfi_startproc
45.endm
46
47.macro END name
48    .cfi_endproc
49    .size \name, .-\name
50.endm
51
52.macro UNIMPLEMENTED name
53    ENTRY \name
54    brk 0
55    END \name
56.endm
57
58// Macros to poison (negate) the reference for heap poisoning.
59.macro POISON_HEAP_REF rRef
60#ifdef USE_HEAP_POISONING
61    neg \rRef, \rRef
62#endif  // USE_HEAP_POISONING
63.endm
64
65// Macros to unpoison (negate) the reference for heap poisoning.
66.macro UNPOISON_HEAP_REF rRef
67#ifdef USE_HEAP_POISONING
68    neg \rRef, \rRef
69#endif  // USE_HEAP_POISONING
70.endm
71
72#endif  // ART_RUNTIME_ARCH_ARM64_ASM_SUPPORT_ARM64_S_
73