Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(82)

Side by Side Diff: src/x64/debug-x64.cc

Issue 199903002: Introduce Push and Pop macro instructions for x64 (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Rebased with bleeding_edge Created 6 years, 9 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch | Annotate | Revision Log
« no previous file with comments | « src/x64/codegen-x64.cc ('k') | src/x64/deoptimizer-x64.cc » ('j') | no next file with comments »
Toggle Intra-line Diffs ('i') | Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
OLDNEW
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
(...skipping 103 matching lines...) Expand 10 before | Expand all | Expand 10 after
114 // make sure that these are correctly updated during GC. Non object values 114 // make sure that these are correctly updated during GC. Non object values
115 // are stored as as two smis causing it to be untouched by GC. 115 // are stored as as two smis causing it to be untouched by GC.
116 ASSERT((object_regs & ~kJSCallerSaved) == 0); 116 ASSERT((object_regs & ~kJSCallerSaved) == 0);
117 ASSERT((non_object_regs & ~kJSCallerSaved) == 0); 117 ASSERT((non_object_regs & ~kJSCallerSaved) == 0);
118 ASSERT((object_regs & non_object_regs) == 0); 118 ASSERT((object_regs & non_object_regs) == 0);
119 for (int i = 0; i < kNumJSCallerSaved; i++) { 119 for (int i = 0; i < kNumJSCallerSaved; i++) {
120 int r = JSCallerSavedCode(i); 120 int r = JSCallerSavedCode(i);
121 Register reg = { r }; 121 Register reg = { r };
122 ASSERT(!reg.is(kScratchRegister)); 122 ASSERT(!reg.is(kScratchRegister));
123 if ((object_regs & (1 << r)) != 0) { 123 if ((object_regs & (1 << r)) != 0) {
124 __ push(reg); 124 __ Push(reg);
125 } 125 }
126 if ((non_object_regs & (1 << r)) != 0) { 126 if ((non_object_regs & (1 << r)) != 0) {
127 __ PushInt64AsTwoSmis(reg); 127 __ PushInt64AsTwoSmis(reg);
128 } 128 }
129 } 129 }
130 130
131 #ifdef DEBUG 131 #ifdef DEBUG
132 __ RecordComment("// Calling from debug break to runtime - come in - over"); 132 __ RecordComment("// Calling from debug break to runtime - come in - over");
133 #endif 133 #endif
134 __ Set(rax, 0); // No arguments (argc == 0). 134 __ Set(rax, 0); // No arguments (argc == 0).
135 __ Move(rbx, ExternalReference::debug_break(masm->isolate())); 135 __ Move(rbx, ExternalReference::debug_break(masm->isolate()));
136 136
137 CEntryStub ceb(1); 137 CEntryStub ceb(1);
138 __ CallStub(&ceb); 138 __ CallStub(&ceb);
139 139
140 // Restore the register values from the expression stack. 140 // Restore the register values from the expression stack.
141 for (int i = kNumJSCallerSaved - 1; i >= 0; i--) { 141 for (int i = kNumJSCallerSaved - 1; i >= 0; i--) {
142 int r = JSCallerSavedCode(i); 142 int r = JSCallerSavedCode(i);
143 Register reg = { r }; 143 Register reg = { r };
144 if (FLAG_debug_code) { 144 if (FLAG_debug_code) {
145 __ Set(reg, kDebugZapValue); 145 __ Set(reg, kDebugZapValue);
146 } 146 }
147 if ((object_regs & (1 << r)) != 0) { 147 if ((object_regs & (1 << r)) != 0) {
148 __ pop(reg); 148 __ Pop(reg);
149 } 149 }
150 // Reconstruct the 64-bit value from two smis. 150 // Reconstruct the 64-bit value from two smis.
151 if ((non_object_regs & (1 << r)) != 0) { 151 if ((non_object_regs & (1 << r)) != 0) {
152 __ PopInt64AsTwoSmis(reg); 152 __ PopInt64AsTwoSmis(reg);
153 } 153 }
154 } 154 }
155 155
156 // Read current padding counter and skip corresponding number of words. 156 // Read current padding counter and skip corresponding number of words.
157 __ pop(kScratchRegister); 157 __ Pop(kScratchRegister);
158 __ SmiToInteger32(kScratchRegister, kScratchRegister); 158 __ SmiToInteger32(kScratchRegister, kScratchRegister);
159 __ lea(rsp, Operand(rsp, kScratchRegister, times_pointer_size, 0)); 159 __ lea(rsp, Operand(rsp, kScratchRegister, times_pointer_size, 0));
160 160
161 // Get rid of the internal frame. 161 // Get rid of the internal frame.
162 } 162 }
163 163
164 // If this call did not replace a call but patched other code then there will 164 // If this call did not replace a call but patched other code then there will
165 // be an unwanted return address left on the stack. Here we get rid of that. 165 // be an unwanted return address left on the stack. Here we get rid of that.
166 if (convert_call_to_jmp) { 166 if (convert_call_to_jmp) {
167 __ addq(rsp, Immediate(kPCOnStackSize)); 167 __ addq(rsp, Immediate(kPCOnStackSize));
(...skipping 154 matching lines...) Expand 10 before | Expand all | Expand 10 after
322 void Debug::GenerateFrameDropperLiveEdit(MacroAssembler* masm) { 322 void Debug::GenerateFrameDropperLiveEdit(MacroAssembler* masm) {
323 ExternalReference restarter_frame_function_slot = 323 ExternalReference restarter_frame_function_slot =
324 ExternalReference(Debug_Address::RestarterFrameFunctionPointer(), 324 ExternalReference(Debug_Address::RestarterFrameFunctionPointer(),
325 masm->isolate()); 325 masm->isolate());
326 __ Move(rax, restarter_frame_function_slot); 326 __ Move(rax, restarter_frame_function_slot);
327 __ movp(Operand(rax, 0), Immediate(0)); 327 __ movp(Operand(rax, 0), Immediate(0));
328 328
329 // We do not know our frame height, but set rsp based on rbp. 329 // We do not know our frame height, but set rsp based on rbp.
330 __ lea(rsp, Operand(rbp, -1 * kPointerSize)); 330 __ lea(rsp, Operand(rbp, -1 * kPointerSize));
331 331
332 __ pop(rdi); // Function. 332 __ Pop(rdi); // Function.
333 __ pop(rbp); 333 __ popq(rbp);
334 334
335 // Load context from the function. 335 // Load context from the function.
336 __ movp(rsi, FieldOperand(rdi, JSFunction::kContextOffset)); 336 __ movp(rsi, FieldOperand(rdi, JSFunction::kContextOffset));
337 337
338 // Get function code. 338 // Get function code.
339 __ movp(rdx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset)); 339 __ movp(rdx, FieldOperand(rdi, JSFunction::kSharedFunctionInfoOffset));
340 __ movp(rdx, FieldOperand(rdx, SharedFunctionInfo::kCodeOffset)); 340 __ movp(rdx, FieldOperand(rdx, SharedFunctionInfo::kCodeOffset));
341 __ lea(rdx, FieldOperand(rdx, Code::kHeaderSize)); 341 __ lea(rdx, FieldOperand(rdx, Code::kHeaderSize));
342 342
343 // Re-run JSFunction, rdi is function, rsi is context. 343 // Re-run JSFunction, rdi is function, rsi is context.
344 __ jmp(rdx); 344 __ jmp(rdx);
345 } 345 }
346 346
347 const bool Debug::kFrameDropperSupported = true; 347 const bool Debug::kFrameDropperSupported = true;
348 348
349 #undef __ 349 #undef __
350 350
351 #endif // ENABLE_DEBUGGER_SUPPORT 351 #endif // ENABLE_DEBUGGER_SUPPORT
352 352
353 } } // namespace v8::internal 353 } } // namespace v8::internal
354 354
355 #endif // V8_TARGET_ARCH_X64 355 #endif // V8_TARGET_ARCH_X64
OLDNEW
« no previous file with comments | « src/x64/codegen-x64.cc ('k') | src/x64/deoptimizer-x64.cc » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698