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Issue 1216863005: PPC: Debugger: use debug break slots instead of ICs (except for calls). (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 5 months ago
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1 // Copyright 2014 the V8 project authors. All rights reserved. 1 // Copyright 2014 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 "src/v8.h" 5 #include "src/v8.h"
6 6
7 #if V8_TARGET_ARCH_PPC 7 #if V8_TARGET_ARCH_PPC
8 8
9 #include "src/codegen.h" 9 #include "src/codegen.h"
10 #include "src/debug.h" 10 #include "src/debug.h"
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150 void DebugCodegen::GenerateCallICStubDebugBreak(MacroAssembler* masm) { 150 void DebugCodegen::GenerateCallICStubDebugBreak(MacroAssembler* masm) {
151 // Register state for CallICStub 151 // Register state for CallICStub
152 // ----------- S t a t e ------------- 152 // ----------- S t a t e -------------
153 // -- r4 : function 153 // -- r4 : function
154 // -- r6 : slot in feedback array (smi) 154 // -- r6 : slot in feedback array (smi)
155 // ----------------------------------- 155 // -----------------------------------
156 Generate_DebugBreakCallHelper(masm, r4.bit() | r6.bit(), 0); 156 Generate_DebugBreakCallHelper(masm, r4.bit() | r6.bit(), 0);
157 } 157 }
158 158
159 159
160 void DebugCodegen::GenerateLoadICDebugBreak(MacroAssembler* masm) {
161 // Calling convention for IC load (from ic-ppc.cc).
162 Register receiver = LoadDescriptor::ReceiverRegister();
163 Register name = LoadDescriptor::NameRegister();
164 Register slot = LoadDescriptor::SlotRegister();
165 RegList regs = receiver.bit() | name.bit() | slot.bit();
166 Generate_DebugBreakCallHelper(masm, regs, 0);
167 }
168
169
170 void DebugCodegen::GenerateStoreICDebugBreak(MacroAssembler* masm) {
171 // Calling convention for IC store (from ic-ppc.cc).
172 Register receiver = StoreDescriptor::ReceiverRegister();
173 Register name = StoreDescriptor::NameRegister();
174 Register value = StoreDescriptor::ValueRegister();
175 RegList regs = receiver.bit() | name.bit() | value.bit();
176 if (FLAG_vector_stores) {
177 regs |= VectorStoreICDescriptor::SlotRegister().bit();
178 }
179 Generate_DebugBreakCallHelper(masm, regs, 0);
180 }
181
182
183 void DebugCodegen::GenerateKeyedLoadICDebugBreak(MacroAssembler* masm) {
184 // Calling convention for keyed IC load (from ic-ppc.cc).
185 GenerateLoadICDebugBreak(masm);
186 }
187
188
189 void DebugCodegen::GenerateKeyedStoreICDebugBreak(MacroAssembler* masm) {
190 // Calling convention for IC keyed store call (from ic-ppc.cc).
191 GenerateStoreICDebugBreak(masm);
192 }
193
194
195 void DebugCodegen::GenerateCompareNilICDebugBreak(MacroAssembler* masm) {
196 // Register state for CompareNil IC
197 // ----------- S t a t e -------------
198 // -- r3 : value
199 // -----------------------------------
200 Generate_DebugBreakCallHelper(masm, r3.bit(), 0);
201 }
202
203
204 void DebugCodegen::GenerateReturnDebugBreak(MacroAssembler* masm) { 160 void DebugCodegen::GenerateReturnDebugBreak(MacroAssembler* masm) {
205 // In places other than IC call sites it is expected that r3 is TOS which 161 // In places other than IC call sites it is expected that r3 is TOS which
206 // is an object - this is not generally the case so this should be used with 162 // is an object - this is not generally the case so this should be used with
207 // care. 163 // care.
208 Generate_DebugBreakCallHelper(masm, r3.bit(), 0); 164 Generate_DebugBreakCallHelper(masm, r3.bit(), 0);
209 } 165 }
210 166
211 167
212 void DebugCodegen::GenerateCallFunctionStubDebugBreak(MacroAssembler* masm) { 168 void DebugCodegen::GenerateCallFunctionStubDebugBreak(MacroAssembler* masm) {
213 // Register state for CallFunctionStub (from code-stubs-ppc.cc). 169 // Register state for CallFunctionStub (from code-stubs-ppc.cc).
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296 } 252 }
297 253
298 254
299 const bool LiveEdit::kFrameDropperSupported = true; 255 const bool LiveEdit::kFrameDropperSupported = true;
300 256
301 #undef __ 257 #undef __
302 } // namespace internal 258 } // namespace internal
303 } // namespace v8 259 } // namespace v8
304 260
305 #endif // V8_TARGET_ARCH_PPC 261 #endif // V8_TARGET_ARCH_PPC
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