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Issue 247373002: CallICStub with a "never patch" approach until customization. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Ports. Created 6 years, 7 months ago
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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 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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170 // Now that the break point has been handled, resume normal execution by 170 // Now that the break point has been handled, resume normal execution by
171 // jumping to the target address intended by the caller and that was 171 // jumping to the target address intended by the caller and that was
172 // overwritten by the address of DebugBreakXXX. 172 // overwritten by the address of DebugBreakXXX.
173 ExternalReference after_break_target = 173 ExternalReference after_break_target =
174 ExternalReference(Debug_Address::AfterBreakTarget(), masm->isolate()); 174 ExternalReference(Debug_Address::AfterBreakTarget(), masm->isolate());
175 __ Move(kScratchRegister, after_break_target); 175 __ Move(kScratchRegister, after_break_target);
176 __ Jump(Operand(kScratchRegister, 0)); 176 __ Jump(Operand(kScratchRegister, 0));
177 } 177 }
178 178
179 179
180 void Debug::GenerateCallICStubDebugBreak(MacroAssembler* masm) {
181 // Register state for CallICStub
182 // ----------- S t a t e -------------
183 // -- rdx : type feedback slot (smi)
184 // -- rdi : function
185 // -----------------------------------
186 Generate_DebugBreakCallHelper(masm, rdx.bit() | rdi.bit(), 0, false);
187 }
188
189
180 void Debug::GenerateLoadICDebugBreak(MacroAssembler* masm) { 190 void Debug::GenerateLoadICDebugBreak(MacroAssembler* masm) {
181 // Register state for IC load call (from ic-x64.cc). 191 // Register state for IC load call (from ic-x64.cc).
182 // ----------- S t a t e ------------- 192 // ----------- S t a t e -------------
183 // -- rax : receiver 193 // -- rax : receiver
184 // -- rcx : name 194 // -- rcx : name
185 // ----------------------------------- 195 // -----------------------------------
186 Generate_DebugBreakCallHelper(masm, rax.bit() | rcx.bit(), 0, false); 196 Generate_DebugBreakCallHelper(masm, rax.bit() | rcx.bit(), 0, false);
187 } 197 }
188 198
189 199
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223 233
224 void Debug::GenerateCompareNilICDebugBreak(MacroAssembler* masm) { 234 void Debug::GenerateCompareNilICDebugBreak(MacroAssembler* masm) {
225 // Register state for CompareNil IC 235 // Register state for CompareNil IC
226 // ----------- S t a t e ------------- 236 // ----------- S t a t e -------------
227 // -- rax : value 237 // -- rax : value
228 // ----------------------------------- 238 // -----------------------------------
229 Generate_DebugBreakCallHelper(masm, rax.bit(), 0, false); 239 Generate_DebugBreakCallHelper(masm, rax.bit(), 0, false);
230 } 240 }
231 241
232 242
233 void Debug::GenerateCallICDebugBreak(MacroAssembler* masm) {
234 // Register state for IC call call (from ic-x64.cc)
235 // ----------- S t a t e -------------
236 // -- rcx: function name
237 // -----------------------------------
238 Generate_DebugBreakCallHelper(masm, rcx.bit(), 0, false);
239 }
240
241
242 void Debug::GenerateReturnDebugBreak(MacroAssembler* masm) { 243 void Debug::GenerateReturnDebugBreak(MacroAssembler* masm) {
243 // Register state just before return from JS function (from codegen-x64.cc). 244 // Register state just before return from JS function (from codegen-x64.cc).
244 // ----------- S t a t e ------------- 245 // ----------- S t a t e -------------
245 // -- rax: return value 246 // -- rax: return value
246 // ----------------------------------- 247 // -----------------------------------
247 Generate_DebugBreakCallHelper(masm, rax.bit(), 0, true); 248 Generate_DebugBreakCallHelper(masm, rax.bit(), 0, true);
248 } 249 }
249 250
250 251
251 void Debug::GenerateCallFunctionStubDebugBreak(MacroAssembler* masm) { 252 void Debug::GenerateCallFunctionStubDebugBreak(MacroAssembler* masm) {
252 // Register state for CallFunctionStub (from code-stubs-x64.cc). 253 // Register state for CallFunctionStub (from code-stubs-x64.cc).
253 // ----------- S t a t e ------------- 254 // ----------- S t a t e -------------
254 // -- rdi : function 255 // -- rdi : function
255 // ----------------------------------- 256 // -----------------------------------
256 Generate_DebugBreakCallHelper(masm, rdi.bit(), 0, false); 257 Generate_DebugBreakCallHelper(masm, rdi.bit(), 0, false);
257 } 258 }
258 259
259 260
260 void Debug::GenerateCallFunctionStubRecordDebugBreak(MacroAssembler* masm) {
261 // Register state for CallFunctionStub (from code-stubs-x64.cc).
262 // ----------- S t a t e -------------
263 // -- rdi : function
264 // -- rbx: feedback array
265 // -- rdx: slot in feedback array
266 // -----------------------------------
267 Generate_DebugBreakCallHelper(masm, rbx.bit() | rdx.bit() | rdi.bit(),
268 0, false);
269 }
270
271
272 void Debug::GenerateCallConstructStubDebugBreak(MacroAssembler* masm) { 261 void Debug::GenerateCallConstructStubDebugBreak(MacroAssembler* masm) {
273 // Register state for CallConstructStub (from code-stubs-x64.cc). 262 // Register state for CallConstructStub (from code-stubs-x64.cc).
274 // rax is the actual number of arguments not encoded as a smi, see comment 263 // rax is the actual number of arguments not encoded as a smi, see comment
275 // above IC call. 264 // above IC call.
276 // ----------- S t a t e ------------- 265 // ----------- S t a t e -------------
277 // -- rax: number of arguments 266 // -- rax: number of arguments
278 // ----------------------------------- 267 // -----------------------------------
279 // The number of arguments in rax is not smi encoded. 268 // The number of arguments in rax is not smi encoded.
280 Generate_DebugBreakCallHelper(masm, rdi.bit(), rax.bit(), false); 269 Generate_DebugBreakCallHelper(masm, rdi.bit(), rax.bit(), false);
281 } 270 }
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346 335
347 const bool Debug::kFrameDropperSupported = true; 336 const bool Debug::kFrameDropperSupported = true;
348 337
349 #undef __ 338 #undef __
350 339
351 #endif // ENABLE_DEBUGGER_SUPPORT 340 #endif // ENABLE_DEBUGGER_SUPPORT
352 341
353 } } // namespace v8::internal 342 } } // namespace v8::internal
354 343
355 #endif // V8_TARGET_ARCH_X64 344 #endif // V8_TARGET_ARCH_X64
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