A64: removed unused debugger file.

src/a64/debugger-a64.cc

Index: src/a64/debugger-a64.cc
diff --git a/src/a64/debugger-a64.cc b/src/a64/debugger-a64.cc
deleted file mode 100644
index 5bccc39776a7b96bd5a40dd831f8d481d3ab0edb..0000000000000000000000000000000000000000
--- a/src/a64/debugger-a64.cc
+++ /dev/null
@@ -1,111 +0,0 @@
-// Copyright 2013 the V8 project authors. All rights reserved.
-// Redistribution and use in source and binary forms, with or without
-// modification, are permitted provided that the following conditions are
-// met:
-//
-//     * Redistributions of source code must retain the above copyright
-//       notice, this list of conditions and the following disclaimer.
-//     * Redistributions in binary form must reproduce the above
-//       copyright notice, this list of conditions and the following
-//       disclaimer in the documentation and/or other materials provided
-//       with the distribution.
-//     * Neither the name of Google Inc. nor the names of its
-//       contributors may be used to endorse or promote products derived
-//       from this software without specific prior written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-#if V8_TARGET_ARCH_A64
-
-#if defined(USE_SIMULATOR)
-
-#include "a64/debugger-a64.h"
-
-namespace v8 {
-namespace internal {
-
-
-void Debugger::VisitException(Instruction* instr) {
-  switch (instr->Mask(ExceptionMask)) {
-    case HLT: {
-      if (instr->ImmException() == kImmExceptionIsDebug) {
-        // Read the arguments encoded inline in the instruction stream.
-        uint32_t code;
-        uint32_t parameters;
-        char const * message;
-
-        ASSERT(sizeof(*pc_) == 1);
-        memcpy(&code, pc_ + kDebugCodeOffset, sizeof(code));
-        memcpy(&parameters, pc_ + kDebugParamsOffset, sizeof(parameters));
-        message = reinterpret_cast<char const *>(pc_ + kDebugMessageOffset);
-
-        if (message[0] == '\0') {
-          fprintf(stream_, "Debugger hit %" PRIu32 ".\n", code);
-        } else {
-          fprintf(stream_, "Debugger hit %" PRIu32 ": %s\n", code, message);
-        }
-
-        // Other options.
-        switch (parameters & kDebuggerTracingDirectivesMask) {
-          case TRACE_ENABLE:
-            set_log_parameters(log_parameters() | parameters);
-            break;
-          case TRACE_DISABLE:
-            set_log_parameters(log_parameters() & ~parameters);
-            break;
-          case TRACE_OVERRIDE:
-            set_log_parameters(parameters);
-            break;
-          default:
-            // We don't support a one-shot LOG_DISASM.
-            ASSERT((parameters & LOG_DISASM) == 0);
-            // Don't print information that is already being traced.
-            parameters &= ~log_parameters();
-            // Print the requested information.
-            if (parameters & LOG_SYS_REGS) PrintSystemRegisters(true);
-            if (parameters & LOG_REGS) PrintRegisters(true);
-            if (parameters & LOG_FP_REGS) PrintFPRegisters(true);
-        }
-
-        // Check if the debugger should break.
-        if (parameters & BREAK) OS::DebugBreak();
-
-        // The stop parameters are inlined in the code. Skip them:
-        //  - Skip to the end of the message string.
-        pc_ += kDebugMessageOffset + strlen(message) + 1;
-        //  - Advance to the next aligned location.
-        pc_ = AlignUp(pc_, kInstructionSize);
-        //  - Verify that the unreachable marker is present.
-        ASSERT(reinterpret_cast<Instruction*>(pc_)->Mask(ExceptionMask) == HLT);
-        ASSERT(reinterpret_cast<Instruction*>(pc_)->ImmException() ==
-               kImmExceptionIsUnreachable);
-        //  - Skip past the unreachable marker.
-        pc_ += kInstructionSize;
-        pc_modified_ = true;
-      } else {
-        Simulator::VisitException(instr);
-      }
-      break;
-    }
-
-    default:
-      UNIMPLEMENTED();
-  }
-}
-
-
-} }  // namespace v8::internal
-
-#endif  // USE_SIMULATOR
-
-#endif  // V8_TARGET_ARCH_A64