address-sanitizer

[Nytro]

AddressSanitizer AddressSanitizer: a fast memory error detector Updated Oct 16, 2013 by samso...@google.com

• Introduction
  
• Getting AddressSanitizer
  
• Using AddressSanitizer
  
• Interaction with other tools
  
  • gdb
    
  • ulimit -v
    

  [*]Flags

  [*]Call stack

  [*]Incompatibility

  [*]Turning off instrumentation

  [*]FAQ

  [*]Comments?

New: AddressSanitizer is released as part of LLVM 3.1.

New: Watch the presentation from the LLVM Developer's meeting (Nov 18, 2011):

, slides.

New: Read the USENIX ATC '2012 paper.

Introduction

AddressSanitizer (aka ASan) is a memory error detector for C/C++. It finds:

• Use after free (dangling pointer dereference)
  
• Heap buffer overflow
  
• Stack buffer overflow
  
• Global buffer overflow
  
• Use after return
  
• Initialization order bugs
  

This tool is very fast. The average slowdown of the instrumented program is ~2x (see PerformanceNumbers).

The tool consists of a compiler instrumentation module (currently, an LLVM pass) and a run-time library which replaces the malloc function.

The tool works on x86 Linux and Mac.

See also:

• AddressSanitizerAlgorithm -- if you are curious how it works.
  
• ComparisonOfMemoryTools
  

Sursa: https://code.google.com/p/address-sanitizer/wiki/AddressSanitizer