1 /*
2 * Copyright (C) 2012 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 #include <math.h>
18
19 #include "entrypoints/jni/jni_entrypoints.h"
20 #include "entrypoints/quick/quick_alloc_entrypoints.h"
21 #include "entrypoints/quick/quick_default_externs.h"
22 #include "entrypoints/quick/quick_default_init_entrypoints.h"
23 #include "entrypoints/quick/quick_entrypoints.h"
24 #include "entrypoints/runtime_asm_entrypoints.h"
25 #include "interpreter/interpreter.h"
26 #include "trace_profile.h"
27
28 namespace art HIDDEN {
29
30 // Cast entrypoints.
31 extern "C" size_t art_quick_instance_of(mirror::Object* obj, mirror::Class* ref_class);
32
33 // Read barrier entrypoints.
34 // art_quick_read_barrier_mark_regX uses an non-standard calling
35 // convention: it expects its input in register X and returns its
36 // result in that same register, and saves and restores all
37 // caller-save registers.
38 extern "C" mirror::Object* art_quick_read_barrier_mark_reg00(mirror::Object*);
39 extern "C" mirror::Object* art_quick_read_barrier_mark_reg01(mirror::Object*);
40 extern "C" mirror::Object* art_quick_read_barrier_mark_reg02(mirror::Object*);
41 extern "C" mirror::Object* art_quick_read_barrier_mark_reg03(mirror::Object*);
42 extern "C" mirror::Object* art_quick_read_barrier_mark_reg05(mirror::Object*);
43 extern "C" mirror::Object* art_quick_read_barrier_mark_reg06(mirror::Object*);
44 extern "C" mirror::Object* art_quick_read_barrier_mark_reg07(mirror::Object*);
45 extern "C" mirror::Object* art_quick_read_barrier_slow(mirror::Object*, mirror::Object*, uint32_t);
46 extern "C" mirror::Object* art_quick_read_barrier_for_root_slow(GcRoot<mirror::Object>*);
47
UpdateReadBarrierEntrypoints(QuickEntryPoints * qpoints,bool is_active)48 void UpdateReadBarrierEntrypoints(QuickEntryPoints* qpoints, bool is_active) {
49 qpoints->SetReadBarrierMarkReg00(is_active ? art_quick_read_barrier_mark_reg00 : nullptr);
50 qpoints->SetReadBarrierMarkReg01(is_active ? art_quick_read_barrier_mark_reg01 : nullptr);
51 qpoints->SetReadBarrierMarkReg02(is_active ? art_quick_read_barrier_mark_reg02 : nullptr);
52 qpoints->SetReadBarrierMarkReg03(is_active ? art_quick_read_barrier_mark_reg03 : nullptr);
53 qpoints->SetReadBarrierMarkReg05(is_active ? art_quick_read_barrier_mark_reg05 : nullptr);
54 qpoints->SetReadBarrierMarkReg06(is_active ? art_quick_read_barrier_mark_reg06 : nullptr);
55 qpoints->SetReadBarrierMarkReg07(is_active ? art_quick_read_barrier_mark_reg07 : nullptr);
56 }
57
InitEntryPoints(JniEntryPoints * jpoints,QuickEntryPoints * qpoints,bool monitor_jni_entry_exit)58 void InitEntryPoints(JniEntryPoints* jpoints,
59 QuickEntryPoints* qpoints,
60 bool monitor_jni_entry_exit) {
61 DefaultInitEntryPoints(jpoints, qpoints, monitor_jni_entry_exit);
62
63 // Cast
64 qpoints->SetInstanceofNonTrivial(art_quick_instance_of);
65 qpoints->SetCheckInstanceOf(art_quick_check_instance_of);
66
67 // More math.
68 qpoints->SetCos(cos);
69 qpoints->SetSin(sin);
70 qpoints->SetAcos(acos);
71 qpoints->SetAsin(asin);
72 qpoints->SetAtan(atan);
73 qpoints->SetAtan2(atan2);
74 qpoints->SetPow(pow);
75 qpoints->SetCbrt(cbrt);
76 qpoints->SetCosh(cosh);
77 qpoints->SetExp(exp);
78 qpoints->SetExpm1(expm1);
79 qpoints->SetHypot(hypot);
80 qpoints->SetLog(log);
81 qpoints->SetLog10(log10);
82 qpoints->SetNextAfter(nextafter);
83 qpoints->SetSinh(sinh);
84 qpoints->SetTan(tan);
85 qpoints->SetTanh(tanh);
86
87 // Math
88 qpoints->SetD2l(art_quick_d2l);
89 qpoints->SetF2l(art_quick_f2l);
90 qpoints->SetLdiv(art_quick_ldiv);
91 qpoints->SetLmod(art_quick_lmod);
92 qpoints->SetLmul(art_quick_lmul);
93 qpoints->SetShlLong(art_quick_lshl);
94 qpoints->SetShrLong(art_quick_lshr);
95 qpoints->SetUshrLong(art_quick_lushr);
96
97 // Intrinsics
98 // qpoints->pIndexOf = nullptr; // Not needed on x86
99 qpoints->SetStringCompareTo(art_quick_string_compareto);
100 qpoints->SetMemcpy(art_quick_memcpy);
101
102 // Read barrier.
103 UpdateReadBarrierEntrypoints(qpoints, /*is_active=*/ false);
104 qpoints->SetReadBarrierMarkReg04(nullptr); // Cannot use register 4 (ESP) to pass arguments.
105 // x86 has only 8 core registers.
106 qpoints->SetReadBarrierMarkReg08(nullptr);
107 qpoints->SetReadBarrierMarkReg09(nullptr);
108 qpoints->SetReadBarrierMarkReg10(nullptr);
109 qpoints->SetReadBarrierMarkReg11(nullptr);
110 qpoints->SetReadBarrierMarkReg12(nullptr);
111 qpoints->SetReadBarrierMarkReg13(nullptr);
112 qpoints->SetReadBarrierMarkReg14(nullptr);
113 qpoints->SetReadBarrierMarkReg15(nullptr);
114 qpoints->SetReadBarrierMarkReg16(nullptr);
115 qpoints->SetReadBarrierMarkReg17(nullptr);
116 qpoints->SetReadBarrierMarkReg18(nullptr);
117 qpoints->SetReadBarrierMarkReg19(nullptr);
118 qpoints->SetReadBarrierMarkReg20(nullptr);
119 qpoints->SetReadBarrierMarkReg21(nullptr);
120 qpoints->SetReadBarrierMarkReg22(nullptr);
121 qpoints->SetReadBarrierMarkReg23(nullptr);
122 qpoints->SetReadBarrierMarkReg24(nullptr);
123 qpoints->SetReadBarrierMarkReg25(nullptr);
124 qpoints->SetReadBarrierMarkReg26(nullptr);
125 qpoints->SetReadBarrierMarkReg27(nullptr);
126 qpoints->SetReadBarrierMarkReg28(nullptr);
127 qpoints->SetReadBarrierMarkReg29(nullptr);
128 qpoints->SetReadBarrierSlow(art_quick_read_barrier_slow);
129 qpoints->SetReadBarrierForRootSlow(art_quick_read_barrier_for_root_slow);
130 }
131
UpdateLowOverheadTraceEntrypoints(QuickEntryPoints * qpoints,LowOverheadTraceType trace_type)132 void UpdateLowOverheadTraceEntrypoints([[maybe_unused]] QuickEntryPoints* qpoints,
133 [[maybe_unused]] LowOverheadTraceType trace_type) {
134 // This is a nop on this architecture. Low overhead tracing is only implemented for ARM64.
135 }
136
137 } // namespace art
138