John Reiser wrote:
> This patch (with .rpms for x86_64 and i686) enables glibc optionally
> to detect, diagnose, and work around overlap in memcpy/mempcpy:
> http://bitwagon.com/glibc-memlap/glibc-memlap.html
> The option to check is controlled by an environment variable
> MEMCPY_CHECK_ which influences choices made by __init_cpu_features
> and the STT_GNU_IFUNC mechanism for choosing alternate implementations
> at runtime.
This does not work where the memcpy is inlined (which glibc can do in
several cases).
Kevin Kofler
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