a library to detect memory buffers over- and underruns
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.
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.
To install electric-fence, run the following command in macOS terminal (Applications->Utilities->Terminal)
sudo port install electric-fence
To see what files were installed by electric-fence, run:
port contents electric-fence
To later upgrade electric-fence, run:
sudo port selfupdate && sudo port upgrade electric-fence
Reporting an issue on MacPorts Trac
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