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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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150 __ SmiUntag(reg); | 150 __ SmiUntag(reg); |
151 } | 151 } |
152 } | 152 } |
153 | 153 |
154 // Get rid of the internal frame. | 154 // Get rid of the internal frame. |
155 } | 155 } |
156 | 156 |
157 // If this call did not replace a call but patched other code then there will | 157 // If this call did not replace a call but patched other code then there will |
158 // be an unwanted return address left on the stack. Here we get rid of that. | 158 // be an unwanted return address left on the stack. Here we get rid of that. |
159 if (convert_call_to_jmp) { | 159 if (convert_call_to_jmp) { |
160 __ add(Operand(esp), Immediate(kPointerSize)); | 160 __ add(esp, Immediate(kPointerSize)); |
161 } | 161 } |
162 | 162 |
163 // Now that the break point has been handled, resume normal execution by | 163 // Now that the break point has been handled, resume normal execution by |
164 // jumping to the target address intended by the caller and that was | 164 // jumping to the target address intended by the caller and that was |
165 // overwritten by the address of DebugBreakXXX. | 165 // overwritten by the address of DebugBreakXXX. |
166 ExternalReference after_break_target = | 166 ExternalReference after_break_target = |
167 ExternalReference(Debug_Address::AfterBreakTarget(), masm->isolate()); | 167 ExternalReference(Debug_Address::AfterBreakTarget(), masm->isolate()); |
168 __ jmp(Operand::StaticVariable(after_break_target)); | 168 __ jmp(Operand::StaticVariable(after_break_target)); |
169 } | 169 } |
170 | 170 |
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292 | 292 |
293 // Load context from the function. | 293 // Load context from the function. |
294 __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); | 294 __ mov(esi, FieldOperand(edi, JSFunction::kContextOffset)); |
295 | 295 |
296 // Get function code. | 296 // Get function code. |
297 __ mov(edx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); | 297 __ mov(edx, FieldOperand(edi, JSFunction::kSharedFunctionInfoOffset)); |
298 __ mov(edx, FieldOperand(edx, SharedFunctionInfo::kCodeOffset)); | 298 __ mov(edx, FieldOperand(edx, SharedFunctionInfo::kCodeOffset)); |
299 __ lea(edx, FieldOperand(edx, Code::kHeaderSize)); | 299 __ lea(edx, FieldOperand(edx, Code::kHeaderSize)); |
300 | 300 |
301 // Re-run JSFunction, edi is function, esi is context. | 301 // Re-run JSFunction, edi is function, esi is context. |
302 __ jmp(Operand(edx)); | 302 __ jmp(edx); |
303 } | 303 } |
304 | 304 |
305 const bool Debug::kFrameDropperSupported = true; | 305 const bool Debug::kFrameDropperSupported = true; |
306 | 306 |
307 #undef __ | 307 #undef __ |
308 | 308 |
309 #endif // ENABLE_DEBUGGER_SUPPORT | 309 #endif // ENABLE_DEBUGGER_SUPPORT |
310 | 310 |
311 } } // namespace v8::internal | 311 } } // namespace v8::internal |
312 | 312 |
313 #endif // V8_TARGET_ARCH_IA32 | 313 #endif // V8_TARGET_ARCH_IA32 |
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