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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.

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2005-08-30 16:43 Back to release list
2.4.16

The main focus of this release is better
portability. A standardized strerror() is now
used. An error which occurred when
EF_NO_LEAKDETECTION was defined was fixed.
Allocations from standard libraries are marked
before ef_init() is called to allow special
treatment in leak-checking. The default in eftest
was changed to use two signals at once: SIGSEGV
and SIGBUS. Alignments bigger than page size are
now allowed for memalign(). The EF_EXPLICIT_INIT
preprocessor flag was added to work around buggy
environments. Environment leaks are no longer
reported.
Tags: Minor bugfixes

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