Version 1.1.0-dev.5.2

dart/runtime/vm/debugger_arm.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_ARM)
 
 #include "vm/cpu.h"
 #include "vm/debugger.h"
 #include "vm/instructions.h"
@@ skipping 13 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() {
-  uword* code = reinterpret_cast<uword*>(pc_ - 3 * Instr::kInstrSize);
-  ASSERT(code[0] == 0xe8bd4c00);  // ldmia sp!, {pp, fp, lr}
-  ASSERT(code[1] == 0xe28dd004);  // add sp, sp, #4
-  ASSERT(code[2] == 0xe12fff1e);  // bx lr
-
-  // Smash code with call instruction and target address.
-  uword stub_addr = StubCode::BreakpointReturnEntryPoint();
-  uint16_t target_lo = stub_addr & 0xffff;
-  uint16_t target_hi = stub_addr >> 16;
-  uword movw = 0xe300c000 | ((target_lo >> 12) << 16) | (target_lo & 0xfff);
-  uword movt = 0xe340c000 | ((target_hi >> 12) << 16) | (target_hi & 0xfff);
-  uword blx =  0xe12fff3c;
-  code[0] = movw;  // movw ip, #target_lo
-  code[1] = movt;  // movt ip, #target_hi
-  code[2] = blx;    // blx ip
-  CPU::FlushICache(pc_ - 3 * Instr::kInstrSize, 3 * Instr::kInstrSize);
-}
-
-
-void CodeBreakpoint::RestoreFunctionReturn() {
-  uword* code = reinterpret_cast<uword*>(pc_ - 3 * Instr::kInstrSize);
-  ASSERT((code[0] & 0xfff0f000) == 0xe300c000);
-  code[0] = 0xe8bd4c00;  // ldmia sp!, {pp, fp, lr}
-  code[1] = 0xe28dd004;  // add sp, sp, #4
-  code[2] = 0xe12fff1e;  // bx lr
-  CPU::FlushICache(pc_ - 3 * Instr::kInstrSize, 3 * Instr::kInstrSize);
-}
-
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM