Disassembler for x64.

runtime/vm/disassembler_ia32.cc

Index: runtime/vm/disassembler_ia32.cc
===================================================================
--- runtime/vm/disassembler_ia32.cc	(revision 1950)
+++ runtime/vm/disassembler_ia32.cc	(working copy)
@@ -1525,6 +1525,60 @@
   return (cpu_regs[reg]);
 }
 
+
+void Disassembler::Disassemble(uword start,
+                               uword end,
+                               DisassemblyFormatter* formatter) {
+  ASSERT(formatter != NULL);
+  char hex_buffer[kHexadecimalBufferSize];  // Instruction in hexadecimal form.
+  char human_buffer[kUserReadableBufferSize];  // Human-readable instruction.
+  uword pc = start;
+  while (pc < end) {
+    int instruction_length = DecodeInstruction(hex_buffer,
+                                               sizeof(hex_buffer),
+                                               human_buffer,
+                                               sizeof(human_buffer),
+                                               pc);
+    formatter->ConsumeInstruction(hex_buffer,
+                                  sizeof(hex_buffer),
+                                  human_buffer,
+                                  sizeof(human_buffer),
+                                  pc);
+    pc += instruction_length;
+  }
+}
+
+
+void Disassembler::DisassembleMemoryRegionRange(
+    const MemoryRegion& instructions,
+    uword from,
+    uword to,
+    DisassemblyFormatter *formatter) {
+  ASSERT(formatter != NULL);
+  char hex_buffer[kHexadecimalBufferSize];  // Instruction in hexadecimal form.
+  char human_buffer[kUserReadableBufferSize];  // Human-readable instruction.
+  uword start = instructions.start();
+  uword end = instructions.end();
+  ASSERT((from >= start) && (to <= end) && (from <= to));
+  uword pc = start;
+  uword stop = Utils::Minimum(end, to);
+  while (pc < stop) {
+    int instruction_length = DecodeInstruction(hex_buffer,
+                                               sizeof(hex_buffer),
+                                               human_buffer,
+                                               sizeof(human_buffer),
+                                               pc);
+    if (pc >= from) {
+      formatter->ConsumeInstruction(hex_buffer,
+                                    sizeof(hex_buffer),
+                                    human_buffer,
+                                    sizeof(human_buffer),
+                                    pc);
+    }
+    pc += instruction_length;
+  }
+}
+
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32