New York University Faculty of Arts and Science College of Arts and Science Graduate School of Arts and Science

Computing Resources

ElectricFence (version 2.1)

Electric Fence (efence) stops your program on the exact instruction that overruns (or underruns) a malloc() memory buffer. GDB will then display the source-code line that causes the bug. It works by using the virtual-memory hardware to create a red-zone at the border of each buffer - touch that, and your program stops. Catch all of those formerly impossible-to-catch overrun bugs that have been bothering you for years.