“Shared libraries are not a good thing in general”

Re:“Shared libraries are not a good thing in general” by bonzini on Sunday May 02, 2021 @02:25AM (#27012781)

> But also for each function call you have to make an indirect jump into it.

Only the first call has a penalty. Then you call into the PLT and the PLT contains a direct jump to the function.

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Re:“Shared libraries are not a good thing in general” by kaba0 on Sunday May 02, 2021 @04:48AM (#27013455)

It still has a cost over potential inlining (that allows for more optimizations as well).

Of course if it is not a hotspot, it is meaningless.

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Re:“Shared libraries are not a good thing in general” by creamytaco on Sunday May 02, 2021 @10:31AM (#27015630)

The call into the PLT is a penalty.

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Re:“Shared libraries are not a good thing in general” by bonzini on Monday May 03, 2021 @12:37PM (#27027201)

Sure but it's not an indirect jump.

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