jeffhao | 7fbee07 | 2012-08-24 17:56:54 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 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 "jni_internal.h" |
| 18 | #include "oat/runtime/oat_support_entrypoints.h" |
| 19 | #include "oat/runtime/stub.h" |
| 20 | #include "oat/utils/mips/assembler_mips.h" |
| 21 | #include "object.h" |
| 22 | #include "stack_indirect_reference_table.h" |
Ian Rogers | 1f53934 | 2012-10-03 21:09:42 -0700 | [diff] [blame] | 23 | #include "sirt_ref.h" |
jeffhao | 7fbee07 | 2012-08-24 17:56:54 -0700 | [diff] [blame] | 24 | |
| 25 | #define __ assembler-> |
| 26 | |
| 27 | namespace art { |
| 28 | namespace mips { |
| 29 | |
| 30 | ByteArray* MipsCreateResolutionTrampoline(Runtime::TrampolineType type) { |
| 31 | UniquePtr<MipsAssembler> assembler(static_cast<MipsAssembler*>(Assembler::Create(kMips))); |
| 32 | #if !defined(ART_USE_LLVM_COMPILER) |
jeffhao | fa147e2 | 2012-10-12 17:03:32 -0700 | [diff] [blame^] | 33 | // | Out args | |
| 34 | // | Method* | <- SP on entry |
| 35 | // | RA | return address into caller |
| 36 | // | ... | callee saves |
| 37 | // | A3 | possible argument |
| 38 | // | A2 | possible argument |
| 39 | // | A1 | possible argument |
| 40 | // | A0/Method* | Callee save Method* set up by UnresolvedDirectMethodTrampolineFromCode |
jeffhao | 7fbee07 | 2012-08-24 17:56:54 -0700 | [diff] [blame] | 41 | // Save callee saves and ready frame for exception delivery |
jeffhao | fa147e2 | 2012-10-12 17:03:32 -0700 | [diff] [blame^] | 42 | __ AddConstant(SP, SP, -48); |
| 43 | __ StoreToOffset(kStoreWord, RA, SP, 44); |
| 44 | __ StoreToOffset(kStoreWord, FP, SP, 40); |
| 45 | __ StoreToOffset(kStoreWord, S7, SP, 36); |
| 46 | __ StoreToOffset(kStoreWord, S6, SP, 32); |
| 47 | __ StoreToOffset(kStoreWord, S5, SP, 28); |
| 48 | __ StoreToOffset(kStoreWord, S4, SP, 24); |
| 49 | __ StoreToOffset(kStoreWord, S3, SP, 20); |
| 50 | __ StoreToOffset(kStoreWord, S2, SP, 16); |
| 51 | __ StoreToOffset(kStoreWord, A3, SP, 12); |
| 52 | __ StoreToOffset(kStoreWord, A2, SP, 8); |
| 53 | __ StoreToOffset(kStoreWord, A1, SP, 4); |
jeffhao | 7fbee07 | 2012-08-24 17:56:54 -0700 | [diff] [blame] | 54 | |
| 55 | __ LoadFromOffset(kLoadWord, T9, S1, |
| 56 | ENTRYPOINT_OFFSET(pUnresolvedDirectMethodTrampolineFromCode)); |
| 57 | __ Move(A2, S1); // Pass Thread::Current() in A2 |
| 58 | __ LoadImmediate(A3, type); // Pass is_static |
| 59 | __ Move(A1, SP); // Pass SP for Method** callee_addr |
| 60 | __ Jalr(T9); // Call to unresolved direct method trampoline (method_idx, sp, Thread*, is_static) |
| 61 | |
| 62 | // Restore registers which may have been modified by GC |
jeffhao | fa147e2 | 2012-10-12 17:03:32 -0700 | [diff] [blame^] | 63 | __ LoadFromOffset(kLoadWord, A0, SP, 0); |
| 64 | __ LoadFromOffset(kLoadWord, A1, SP, 4); |
| 65 | __ LoadFromOffset(kLoadWord, A2, SP, 8); |
| 66 | __ LoadFromOffset(kLoadWord, A3, SP, 12); |
| 67 | __ LoadFromOffset(kLoadWord, S2, SP, 16); |
| 68 | __ LoadFromOffset(kLoadWord, S3, SP, 20); |
| 69 | __ LoadFromOffset(kLoadWord, S4, SP, 24); |
| 70 | __ LoadFromOffset(kLoadWord, S5, SP, 28); |
| 71 | __ LoadFromOffset(kLoadWord, S6, SP, 32); |
| 72 | __ LoadFromOffset(kLoadWord, S7, SP, 36); |
| 73 | __ LoadFromOffset(kLoadWord, FP, SP, 40); |
| 74 | __ LoadFromOffset(kLoadWord, RA, SP, 44); |
| 75 | __ AddConstant(SP, SP, 48); |
jeffhao | 7fbee07 | 2012-08-24 17:56:54 -0700 | [diff] [blame] | 76 | |
jeffhao | 7fbee07 | 2012-08-24 17:56:54 -0700 | [diff] [blame] | 77 | __ Jr(V0); // Leaf call to method's code |
| 78 | |
| 79 | __ Break(); |
| 80 | #else // ART_USE_LLVM_COMPILER |
| 81 | // Build frame and save argument registers and RA. |
| 82 | __ AddConstant(SP, SP, -32); |
| 83 | __ StoreToOffset(kStoreWord, RA, SP, 28); |
| 84 | __ StoreToOffset(kStoreWord, A3, SP, 24); |
| 85 | __ StoreToOffset(kStoreWord, A2, SP, 20); |
| 86 | __ StoreToOffset(kStoreWord, A1, SP, 16); |
| 87 | __ StoreToOffset(kStoreWord, A0, SP, 12); |
| 88 | |
| 89 | __ LoadFromOffset(kLoadWord, T9, S1, |
| 90 | ENTRYPOINT_OFFSET(pUnresolvedDirectMethodTrampolineFromCode)); |
jeffhao | 0ac41d5 | 2012-08-27 13:07:54 -0700 | [diff] [blame] | 91 | __ Move(A2, S1); // Pass Thread::Current() in A2 |
jeffhao | 7fbee07 | 2012-08-24 17:56:54 -0700 | [diff] [blame] | 92 | __ LoadImmediate(A3, type); // Pass is_static |
jeffhao | 0ac41d5 | 2012-08-27 13:07:54 -0700 | [diff] [blame] | 93 | __ Move(A1, SP); // Pass SP for Method** callee_addr |
jeffhao | 7fbee07 | 2012-08-24 17:56:54 -0700 | [diff] [blame] | 94 | __ Jalr(T9); // Call to unresolved direct method trampoline (callee, callee_addr, Thread*, is_static) |
| 95 | |
| 96 | // Restore frame, argument registers, and RA. |
| 97 | __ LoadFromOffset(kLoadWord, A0, SP, 12); |
| 98 | __ LoadFromOffset(kLoadWord, A1, SP, 16); |
| 99 | __ LoadFromOffset(kLoadWord, A2, SP, 20); |
| 100 | __ LoadFromOffset(kLoadWord, A3, SP, 24); |
| 101 | __ LoadFromOffset(kLoadWord, RA, SP, 28); |
| 102 | __ AddConstant(SP, SP, 32); |
| 103 | |
| 104 | Label resolve_fail; |
| 105 | __ EmitBranch(V0, ZERO, &resolve_fail, true); |
| 106 | __ Jr(V0); // If V0 != 0 tail call method's code |
| 107 | __ Bind(&resolve_fail, false); |
| 108 | __ Jr(RA); // Return to caller to handle exception |
| 109 | #endif // ART_USE_LLVM_COMPILER |
| 110 | |
| 111 | assembler->EmitSlowPaths(); |
| 112 | |
| 113 | size_t cs = assembler->CodeSize(); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 114 | Thread* self = Thread::Current(); |
| 115 | SirtRef<ByteArray> resolution_trampoline(self, ByteArray::Alloc(self, cs)); |
jeffhao | 7fbee07 | 2012-08-24 17:56:54 -0700 | [diff] [blame] | 116 | CHECK(resolution_trampoline.get() != NULL); |
| 117 | MemoryRegion code(resolution_trampoline->GetData(), resolution_trampoline->GetLength()); |
| 118 | assembler->FinalizeInstructions(code); |
| 119 | |
| 120 | return resolution_trampoline.get(); |
| 121 | } |
| 122 | |
Mathieu Chartier | 66f1925 | 2012-09-18 08:57:04 -0700 | [diff] [blame] | 123 | typedef void (*ThrowAme)(AbstractMethod*, Thread*); |
jeffhao | 7fbee07 | 2012-08-24 17:56:54 -0700 | [diff] [blame] | 124 | |
| 125 | ByteArray* CreateAbstractMethodErrorStub() { |
| 126 | UniquePtr<MipsAssembler> assembler(static_cast<MipsAssembler*>(Assembler::Create(kMips))); |
| 127 | #if !defined(ART_USE_LLVM_COMPILER) |
| 128 | // Save callee saves and ready frame for exception delivery |
jeffhao | 0703060 | 2012-09-26 14:33:14 -0700 | [diff] [blame] | 129 | __ AddConstant(SP, SP, -48); |
| 130 | __ StoreToOffset(kStoreWord, RA, SP, 44); |
jeffhao | 4f8f04a | 2012-10-02 18:10:35 -0700 | [diff] [blame] | 131 | __ StoreToOffset(kStoreWord, FP, SP, 40); |
| 132 | __ StoreToOffset(kStoreWord, S7, SP, 36); |
| 133 | __ StoreToOffset(kStoreWord, S6, SP, 32); |
| 134 | __ StoreToOffset(kStoreWord, S5, SP, 28); |
| 135 | __ StoreToOffset(kStoreWord, S4, SP, 24); |
| 136 | __ StoreToOffset(kStoreWord, S3, SP, 20); |
| 137 | __ StoreToOffset(kStoreWord, S2, SP, 16); |
jeffhao | 7fbee07 | 2012-08-24 17:56:54 -0700 | [diff] [blame] | 138 | |
jeffhao | 0703060 | 2012-09-26 14:33:14 -0700 | [diff] [blame] | 139 | // A0 is the Method* already |
jeffhao | 7fbee07 | 2012-08-24 17:56:54 -0700 | [diff] [blame] | 140 | __ Move(A1, S1); // Pass Thread::Current() in A1 |
| 141 | __ Move(A2, SP); // Pass SP in A2 |
| 142 | // Call to throw AbstractMethodError |
| 143 | __ LoadFromOffset(kLoadWord, T9, S1, ENTRYPOINT_OFFSET(pThrowAbstractMethodErrorFromCode)); |
| 144 | __ Jr(T9); // Leaf call to routine that never returns |
| 145 | |
| 146 | __ Break(); |
| 147 | #else // ART_USE_LLVM_COMPILER |
| 148 | // R0 is the Method* already |
| 149 | __ Move(A1, S1); // Pass Thread::Current() in A1 |
| 150 | // Call to throw AbstractMethodError |
| 151 | __ LoadFromOffset(kLoadWord, T9, S1, ENTRYPOINT_OFFSET(pThrowAbstractMethodErrorFromCode)); |
| 152 | __ Jr(T9); // Leaf call to routine that never returns |
| 153 | |
| 154 | __ Break(); |
| 155 | #endif // ART_USE_LLVM_COMPILER |
| 156 | |
| 157 | assembler->EmitSlowPaths(); |
| 158 | |
| 159 | size_t cs = assembler->CodeSize(); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 160 | Thread* self = Thread::Current(); |
| 161 | SirtRef<ByteArray> abstract_stub(self, ByteArray::Alloc(self, cs)); |
jeffhao | 7fbee07 | 2012-08-24 17:56:54 -0700 | [diff] [blame] | 162 | CHECK(abstract_stub.get() != NULL); |
| 163 | MemoryRegion code(abstract_stub->GetData(), abstract_stub->GetLength()); |
| 164 | assembler->FinalizeInstructions(code); |
| 165 | |
| 166 | return abstract_stub.get(); |
| 167 | } |
| 168 | |
| 169 | ByteArray* CreateJniDlsymLookupStub() { |
| 170 | UniquePtr<MipsAssembler> assembler(static_cast<MipsAssembler*>(Assembler::Create(kMips))); |
| 171 | |
| 172 | // Build frame and save argument registers and RA. |
| 173 | __ AddConstant(SP, SP, -32); |
| 174 | __ StoreToOffset(kStoreWord, RA, SP, 28); |
| 175 | __ StoreToOffset(kStoreWord, A3, SP, 24); |
| 176 | __ StoreToOffset(kStoreWord, A2, SP, 20); |
| 177 | __ StoreToOffset(kStoreWord, A1, SP, 16); |
| 178 | __ StoreToOffset(kStoreWord, A0, SP, 12); |
| 179 | |
| 180 | __ Move(A0, S1); // Pass Thread::Current() in A0 |
| 181 | __ LoadFromOffset(kLoadWord, T9, S1, ENTRYPOINT_OFFSET(pFindNativeMethod)); |
| 182 | __ Jalr(T9); // Call FindNativeMethod |
| 183 | |
| 184 | // Restore frame, argument registers, and RA. |
| 185 | __ LoadFromOffset(kLoadWord, A0, SP, 12); |
| 186 | __ LoadFromOffset(kLoadWord, A1, SP, 16); |
| 187 | __ LoadFromOffset(kLoadWord, A2, SP, 20); |
| 188 | __ LoadFromOffset(kLoadWord, A3, SP, 24); |
| 189 | __ LoadFromOffset(kLoadWord, RA, SP, 28); |
| 190 | __ AddConstant(SP, SP, 32); |
| 191 | |
| 192 | Label no_native_code_found; |
| 193 | __ EmitBranch(V0, ZERO, &no_native_code_found, true); |
| 194 | __ Jr(V0); // If V0 != 0 tail call method's code |
| 195 | __ Bind(&no_native_code_found, false); |
| 196 | __ Jr(RA); // Return to caller to handle exception |
| 197 | |
| 198 | assembler->EmitSlowPaths(); |
| 199 | |
| 200 | size_t cs = assembler->CodeSize(); |
Ian Rogers | 50b35e2 | 2012-10-04 10:09:15 -0700 | [diff] [blame] | 201 | Thread* self = Thread::Current(); |
| 202 | SirtRef<ByteArray> jni_stub(self, ByteArray::Alloc(self, cs)); |
jeffhao | 7fbee07 | 2012-08-24 17:56:54 -0700 | [diff] [blame] | 203 | CHECK(jni_stub.get() != NULL); |
| 204 | MemoryRegion code(jni_stub->GetData(), jni_stub->GetLength()); |
| 205 | assembler->FinalizeInstructions(code); |
| 206 | |
| 207 | return jni_stub.get(); |
| 208 | } |
| 209 | |
| 210 | } // namespace mips |
| 211 | } // namespace art |