Version 1.1.0-dev.5.2

dart/runtime/vm/debugger_x64.cc

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/debugger.h"
 
 #include "vm/assembler.h"
@@ skipping 14 matching lines @@
 
 RawObject* ActivationFrame::GetClosureObject(intptr_t num_actual_args) {
   // At a minimum we have the closure object on the stack.
   ASSERT(num_actual_args > 0);
   // Stack pointer points to last argument that was pushed on the stack.
   uword closure_addr = sp() + ((num_actual_args - 1) * kWordSize);
   return reinterpret_cast<RawObject*>(
              *reinterpret_cast<uword*>(closure_addr));
 }
 
-
-void CodeBreakpoint::PatchFunctionReturn() {
-  uint8_t* code = reinterpret_cast<uint8_t*>(pc_ - 13);
-  ASSERT((code[0] == 0x4c) && (code[1] == 0x8b) && (code[2] == 0x7d) &&
-         (code[3] == 0xf0));  // movq r15,[rbp-0x10]
-  ASSERT((code[4] == 0x48) && (code[5] == 0x89) &&
-         (code[6] == 0xec));  // mov rsp, rbp
-  ASSERT(code[7] == 0x5d);  // pop rbp
-  ASSERT(code[8] == 0xc3);  // ret
-  ASSERT((code[9] == 0x0F) && (code[10] == 0x1F) && (code[11] == 0x40) &&
-         (code[12] == 0x00));  // nops
-  // Smash code with call instruction and relative target address.
-  uword stub_addr = StubCode::BreakpointReturnEntryPoint();
-  code[0] = 0x49;
-  code[1] = 0xbb;
-  *reinterpret_cast<uword*>(&code[2]) = stub_addr;
-  code[10] = 0x41;
-  code[11] = 0xff;
-  code[12] = 0xd3;
-  CPU::FlushICache(pc_ - 13, 13);
-}
-
-
-void CodeBreakpoint::RestoreFunctionReturn() {
-  uint8_t* code = reinterpret_cast<uint8_t*>(pc_ - 13);
-  ASSERT((code[0] == 0x49) && (code[1] == 0xbb));
-
-  MemoryRegion code_region(reinterpret_cast<void*>(pc_ - 13), 13);
-  Assembler assembler;
-
-  assembler.ReturnPatchable();
-  assembler.FinalizeInstructions(code_region);
-
-  CPU::FlushICache(pc_ - 13, 13);
-}
-
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64