Re: Fedora 32 System-Wide Change proposal: Build Python 3 to statically link with libpython3.8.a for better performance

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Thinking aloud: does anyone ever use symbol overriding for anything
other than glibc?

Yes.  It is particularly useful for "spear fishing" debugging of lower-level
interfaces in large, complex multi-process applications.

That only seems to need shallow interposition, though.  In most cases, I
doubt you are interested in API calls from the library self because
those are probably unproblematic.

One actual case: why  exp(600.0) ?  Yes, the first use of overriding was shallow
and libm (part of glibc).  But the caller was deep within a scientific library,
and the second overriding was not shallow at all.
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