| Index: dart/runtime/vm/debugger_arm.cc
|
| ===================================================================
|
| --- dart/runtime/vm/debugger_arm.cc (revision 31530)
|
| +++ dart/runtime/vm/debugger_arm.cc (working copy)
|
| @@ -31,36 +31,6 @@
|
| *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
|
|
|