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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "v8.h" | 5 #include "v8.h" |
| 6 | 6 |
| 7 #if V8_TARGET_ARCH_ARM | 7 #if V8_TARGET_ARCH_ARM |
| 8 | 8 |
| 9 #include "codegen.h" | 9 #include "codegen.h" |
| 10 #include "debug.h" | 10 #include "debug.h" |
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| 148 // jumping to the target address intended by the caller and that was | 148 // jumping to the target address intended by the caller and that was |
| 149 // overwritten by the address of DebugBreakXXX. | 149 // overwritten by the address of DebugBreakXXX. |
| 150 ExternalReference after_break_target = | 150 ExternalReference after_break_target = |
| 151 ExternalReference(Debug_Address::AfterBreakTarget(), masm->isolate()); | 151 ExternalReference(Debug_Address::AfterBreakTarget(), masm->isolate()); |
| 152 __ mov(ip, Operand(after_break_target)); | 152 __ mov(ip, Operand(after_break_target)); |
| 153 __ ldr(ip, MemOperand(ip)); | 153 __ ldr(ip, MemOperand(ip)); |
| 154 __ Jump(ip); | 154 __ Jump(ip); |
| 155 } | 155 } |
| 156 | 156 |
| 157 | 157 |
| 158 void Debug::GenerateCallICStubDebugBreak(MacroAssembler* masm) { |
| 159 // Register state for CallICStub |
| 160 // ----------- S t a t e ------------- |
| 161 // -- r1 : function |
| 162 // -- r3 : slot in feedback array (smi) |
| 163 // ----------------------------------- |
| 164 Generate_DebugBreakCallHelper(masm, r1.bit() | r3.bit(), 0); |
| 165 } |
| 166 |
| 167 |
| 158 void Debug::GenerateLoadICDebugBreak(MacroAssembler* masm) { | 168 void Debug::GenerateLoadICDebugBreak(MacroAssembler* masm) { |
| 159 // Calling convention for IC load (from ic-arm.cc). | 169 // Calling convention for IC load (from ic-arm.cc). |
| 160 // ----------- S t a t e ------------- | 170 // ----------- S t a t e ------------- |
| 161 // -- r2 : name | 171 // -- r2 : name |
| 162 // -- lr : return address | 172 // -- lr : return address |
| 163 // -- r0 : receiver | 173 // -- r0 : receiver |
| 164 // -- [sp] : receiver | 174 // -- [sp] : receiver |
| 165 // ----------------------------------- | 175 // ----------------------------------- |
| 166 // Registers r0 and r2 contain objects that need to be pushed on the | 176 // Registers r0 and r2 contain objects that need to be pushed on the |
| 167 // expression stack of the fake JS frame. | 177 // expression stack of the fake JS frame. |
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| 204 | 214 |
| 205 void Debug::GenerateCompareNilICDebugBreak(MacroAssembler* masm) { | 215 void Debug::GenerateCompareNilICDebugBreak(MacroAssembler* masm) { |
| 206 // Register state for CompareNil IC | 216 // Register state for CompareNil IC |
| 207 // ----------- S t a t e ------------- | 217 // ----------- S t a t e ------------- |
| 208 // -- r0 : value | 218 // -- r0 : value |
| 209 // ----------------------------------- | 219 // ----------------------------------- |
| 210 Generate_DebugBreakCallHelper(masm, r0.bit(), 0); | 220 Generate_DebugBreakCallHelper(masm, r0.bit(), 0); |
| 211 } | 221 } |
| 212 | 222 |
| 213 | 223 |
| 214 void Debug::GenerateCallICDebugBreak(MacroAssembler* masm) { | |
| 215 // Calling convention for IC call (from ic-arm.cc) | |
| 216 // ----------- S t a t e ------------- | |
| 217 // -- r2 : name | |
| 218 // ----------------------------------- | |
| 219 Generate_DebugBreakCallHelper(masm, r2.bit(), 0); | |
| 220 } | |
| 221 | |
| 222 | |
| 223 void Debug::GenerateReturnDebugBreak(MacroAssembler* masm) { | 224 void Debug::GenerateReturnDebugBreak(MacroAssembler* masm) { |
| 224 // In places other than IC call sites it is expected that r0 is TOS which | 225 // In places other than IC call sites it is expected that r0 is TOS which |
| 225 // is an object - this is not generally the case so this should be used with | 226 // is an object - this is not generally the case so this should be used with |
| 226 // care. | 227 // care. |
| 227 Generate_DebugBreakCallHelper(masm, r0.bit(), 0); | 228 Generate_DebugBreakCallHelper(masm, r0.bit(), 0); |
| 228 } | 229 } |
| 229 | 230 |
| 230 | 231 |
| 231 void Debug::GenerateCallFunctionStubDebugBreak(MacroAssembler* masm) { | 232 void Debug::GenerateCallFunctionStubDebugBreak(MacroAssembler* masm) { |
| 232 // Register state for CallFunctionStub (from code-stubs-arm.cc). | 233 // Register state for CallFunctionStub (from code-stubs-arm.cc). |
| 233 // ----------- S t a t e ------------- | 234 // ----------- S t a t e ------------- |
| 234 // -- r1 : function | 235 // -- r1 : function |
| 235 // ----------------------------------- | 236 // ----------------------------------- |
| 236 Generate_DebugBreakCallHelper(masm, r1.bit(), 0); | 237 Generate_DebugBreakCallHelper(masm, r1.bit(), 0); |
| 237 } | 238 } |
| 238 | 239 |
| 239 | 240 |
| 240 void Debug::GenerateCallFunctionStubRecordDebugBreak(MacroAssembler* masm) { | |
| 241 // Register state for CallFunctionStub (from code-stubs-arm.cc). | |
| 242 // ----------- S t a t e ------------- | |
| 243 // -- r1 : function | |
| 244 // -- r2 : feedback array | |
| 245 // -- r3 : slot in feedback array | |
| 246 // ----------------------------------- | |
| 247 Generate_DebugBreakCallHelper(masm, r1.bit() | r2.bit() | r3.bit(), 0); | |
| 248 } | |
| 249 | |
| 250 | |
| 251 void Debug::GenerateCallConstructStubDebugBreak(MacroAssembler* masm) { | 241 void Debug::GenerateCallConstructStubDebugBreak(MacroAssembler* masm) { |
| 252 // Calling convention for CallConstructStub (from code-stubs-arm.cc) | 242 // Calling convention for CallConstructStub (from code-stubs-arm.cc) |
| 253 // ----------- S t a t e ------------- | 243 // ----------- S t a t e ------------- |
| 254 // -- r0 : number of arguments (not smi) | 244 // -- r0 : number of arguments (not smi) |
| 255 // -- r1 : constructor function | 245 // -- r1 : constructor function |
| 256 // ----------------------------------- | 246 // ----------------------------------- |
| 257 Generate_DebugBreakCallHelper(masm, r1.bit(), r0.bit()); | 247 Generate_DebugBreakCallHelper(masm, r1.bit(), r0.bit()); |
| 258 } | 248 } |
| 259 | 249 |
| 260 | 250 |
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| 301 masm->Abort(kLiveEditFrameDroppingIsNotSupportedOnArm); | 291 masm->Abort(kLiveEditFrameDroppingIsNotSupportedOnArm); |
| 302 } | 292 } |
| 303 | 293 |
| 304 const bool Debug::kFrameDropperSupported = false; | 294 const bool Debug::kFrameDropperSupported = false; |
| 305 | 295 |
| 306 #undef __ | 296 #undef __ |
| 307 | 297 |
| 308 } } // namespace v8::internal | 298 } } // namespace v8::internal |
| 309 | 299 |
| 310 #endif // V8_TARGET_ARCH_ARM | 300 #endif // V8_TARGET_ARCH_ARM |
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