1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "jni_macro_assembler.h"
#include <algorithm>
#include <vector>
#ifdef ART_ENABLE_CODEGEN_arm
#include "arm/jni_macro_assembler_arm_vixl.h"
#endif
#ifdef ART_ENABLE_CODEGEN_arm64
#include "arm64/jni_macro_assembler_arm64.h"
#endif
#ifdef ART_ENABLE_CODEGEN_riscv64
#include "riscv64/jni_macro_assembler_riscv64.h"
#endif
#ifdef ART_ENABLE_CODEGEN_x86
#include "x86/jni_macro_assembler_x86.h"
#endif
#ifdef ART_ENABLE_CODEGEN_x86_64
#include "x86_64/jni_macro_assembler_x86_64.h"
#endif
#include "base/casts.h"
#include "base/globals.h"
#include "base/memory_region.h"
#include "gc_root.h"
#include "jni/jni_env_ext.h"
#include "jni/local_reference_table.h"
#include "stack_reference.h"
namespace art HIDDEN {
using MacroAsm32UniquePtr = std::unique_ptr<JNIMacroAssembler<PointerSize::k32>>;
template <>
MacroAsm32UniquePtr JNIMacroAssembler<PointerSize::k32>::Create(
ArenaAllocator* allocator,
InstructionSet instruction_set,
const InstructionSetFeatures* instruction_set_features) {
// TODO: Remove the parameter from API (not needed after Mips target was removed).
UNUSED(instruction_set_features);
switch (instruction_set) {
#ifdef ART_ENABLE_CODEGEN_arm
case InstructionSet::kArm:
case InstructionSet::kThumb2:
return MacroAsm32UniquePtr(new (allocator) arm::ArmVIXLJNIMacroAssembler(allocator));
#endif
#ifdef ART_ENABLE_CODEGEN_x86
case InstructionSet::kX86:
return MacroAsm32UniquePtr(new (allocator) x86::X86JNIMacroAssembler(allocator));
#endif
default:
UNUSED(allocator);
LOG(FATAL) << "Unknown/unsupported 4B InstructionSet: " << instruction_set;
UNREACHABLE();
}
}
using MacroAsm64UniquePtr = std::unique_ptr<JNIMacroAssembler<PointerSize::k64>>;
template <>
MacroAsm64UniquePtr JNIMacroAssembler<PointerSize::k64>::Create(
ArenaAllocator* allocator,
InstructionSet instruction_set,
const InstructionSetFeatures* instruction_set_features) {
// TODO: Remove the parameter from API (not needed after Mips64 target was removed).
UNUSED(instruction_set_features);
switch (instruction_set) {
#ifdef ART_ENABLE_CODEGEN_arm64
case InstructionSet::kArm64:
return MacroAsm64UniquePtr(new (allocator) arm64::Arm64JNIMacroAssembler(allocator));
#endif
#ifdef ART_ENABLE_CODEGEN_riscv64
case InstructionSet::kRiscv64:
return MacroAsm64UniquePtr(new (allocator) riscv64::Riscv64JNIMacroAssembler(allocator));
#endif
#ifdef ART_ENABLE_CODEGEN_x86_64
case InstructionSet::kX86_64:
return MacroAsm64UniquePtr(new (allocator) x86_64::X86_64JNIMacroAssembler(allocator));
#endif
default:
UNUSED(allocator);
LOG(FATAL) << "Unknown/unsupported 8B InstructionSet: " << instruction_set;
UNREACHABLE();
}
}
template <PointerSize kPointerSize>
void JNIMacroAssembler<kPointerSize>::LoadGcRootWithoutReadBarrier(ManagedRegister dest,
ManagedRegister base,
MemberOffset offs) {
static_assert(sizeof(uint32_t) == sizeof(GcRoot<mirror::Object>));
Load(dest, base, offs, sizeof(uint32_t));
}
template
void JNIMacroAssembler<PointerSize::k32>::LoadGcRootWithoutReadBarrier(ManagedRegister dest,
ManagedRegister base,
MemberOffset offs);
template
void JNIMacroAssembler<PointerSize::k64>::LoadGcRootWithoutReadBarrier(ManagedRegister dest,
ManagedRegister base,
MemberOffset offs);
template <PointerSize kPointerSize>
void JNIMacroAssembler<kPointerSize>::LoadStackReference(ManagedRegister dest, FrameOffset offs) {
static_assert(sizeof(uint32_t) == sizeof(StackReference<mirror::Object>));
Load(dest, offs, sizeof(uint32_t));
}
template
void JNIMacroAssembler<PointerSize::k32>::LoadStackReference(ManagedRegister dest,
FrameOffset offs);
template
void JNIMacroAssembler<PointerSize::k64>::LoadStackReference(ManagedRegister dest,
FrameOffset offs);
template <PointerSize kPointerSize>
void JNIMacroAssembler<kPointerSize>::LoadLocalReferenceTableStates(
ManagedRegister jni_env_reg,
ManagedRegister previous_state_reg,
ManagedRegister current_state_reg) {
constexpr size_t kLRTSegmentStateSize = sizeof(jni::LRTSegmentState);
const MemberOffset previous_state_offset = JNIEnvExt::LrtPreviousStateOffset(kPointerSize);
const MemberOffset current_state_offset = JNIEnvExt::LrtSegmentStateOffset(kPointerSize);
Load(previous_state_reg, jni_env_reg, previous_state_offset, kLRTSegmentStateSize);
Load(current_state_reg, jni_env_reg, current_state_offset, kLRTSegmentStateSize);
}
template
void JNIMacroAssembler<PointerSize::k32>::LoadLocalReferenceTableStates(
ManagedRegister jni_env_reg,
ManagedRegister previous_state_reg,
ManagedRegister current_state_reg);
template
void JNIMacroAssembler<PointerSize::k64>::LoadLocalReferenceTableStates(
ManagedRegister jni_env_reg,
ManagedRegister previous_state_reg,
ManagedRegister current_state_reg);
template <PointerSize kPointerSize>
void JNIMacroAssembler<kPointerSize>::StoreLocalReferenceTableStates(
ManagedRegister jni_env_reg,
ManagedRegister previous_state_reg,
ManagedRegister current_state_reg) {
constexpr size_t kLRTSegmentStateSize = sizeof(jni::LRTSegmentState);
const MemberOffset previous_state_offset = JNIEnvExt::LrtPreviousStateOffset(kPointerSize);
const MemberOffset segment_state_offset = JNIEnvExt::LrtSegmentStateOffset(kPointerSize);
Store(jni_env_reg, previous_state_offset, previous_state_reg, kLRTSegmentStateSize);
Store(jni_env_reg, segment_state_offset, current_state_reg, kLRTSegmentStateSize);
}
template
void JNIMacroAssembler<PointerSize::k32>::StoreLocalReferenceTableStates(
ManagedRegister jni_env_reg,
ManagedRegister previous_state_reg,
ManagedRegister current_state_reg);
template
void JNIMacroAssembler<PointerSize::k64>::StoreLocalReferenceTableStates(
ManagedRegister jni_env_reg,
ManagedRegister previous_state_reg,
ManagedRegister current_state_reg);
} // namespace art
|