[llvm-commits] CVS: llvm/lib/System/Disassembler.cpp

[Anton Korobeynikov]

Changes in directory llvm/lib/System:

Disassembler.cpp added (r1.1)
---
Log message:

Moved disassembler to libSystem


---
Diffs of the changes:  (+65 -0)

 Disassembler.cpp |   65 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 65 insertions(+)


Index: llvm/lib/System/Disassembler.cpp
diff -c /dev/null llvm/lib/System/Disassembler.cpp:1.1
*** /dev/null	Tue Jan 23 04:26:19 2007
--- llvm/lib/System/Disassembler.cpp	Tue Jan 23 04:26:08 2007
***************
*** 0 ****
--- 1,65 ----
+ //===- lib/System/Disassembler.cpp ------------------------------*- C++ -*-===//
+ //
+ //                     The LLVM Compiler Infrastructure
+ //
+ // This file was developed by Anton Korobeynikov and is distributed under the
+ // University of Illinois Open Source License. See LICENSE.TXT for details.
+ //
+ //===----------------------------------------------------------------------===//
+ //
+ // This file implements the necessary glue to call external disassembler
+ // libraries.
+ //
+ //===----------------------------------------------------------------------===//
+ 
+ #include "llvm/Config/config.h"
+ #include "llvm/System/Disassembler.h"
+ 
+ #include <cassert>
+ #include <iomanip>
+ #include <string>
+ #include <sstream>
+ 
+ #if USE_UDIS86
+ #include <udis86.h>
+ #endif
+ 
+ using namespace llvm;
+ 
+ std::string llvm::sys::disassembleBuffer(uint8_t* start, size_t length,
+                                          uint64_t pc) {
+   std::stringstream res;
+ 
+ #if defined (__i386__) || defined (__amd64__) || defined (__x86_64__)
+   unsigned bits;
+ # if defined(__i386__)
+   bits = 32;
+ # else
+   bits = 64;
+ # endif
+   
+ # if USE_UDIS86
+   ud_t ud_obj;
+    
+   ud_init(&ud_obj);
+   ud_set_input_buffer(&ud_obj, start, length);
+   ud_set_mode(&ud_obj, bits);
+   ud_set_pc(&ud_obj, pc);
+   ud_set_syntax(&ud_obj, UD_SYN_ATT);
+   
+   res << std::setbase(16)
+       << std::setw(bits/4);
+   
+   while (ud_disassemble(&ud_obj)) {
+     res << ud_insn_off(&ud_obj) << ":\t" << ud_insn_asm(&ud_obj) << "\n";
+   }
+ # else
+   res << "No disassembler available. See configure help for avaiable options.\n";
+ # endif
+   
+ #else
+   res << "No disassembler available. See configure help for avaiable options.\n";
+ #endif
+ 
+   return res.str();
+ }