Re: [RFC] Un-staticise the toolchain

On Apr 30, 2012, at 6:41 AM, Erik Cederstrand wrote:
>=20
> Can anyone explain to me why the dynamically linked version is =
significantly slower? What are the extra steps involved compared to a =
statically linked binary?

At the risk of dramatically over-simplifying=85.

When a static binary is started by the kernel, it does the following:
  * Initializes some libc internals.
  * Calls main.

When a dynamic binary is started by the kernel, it does the following:
  * Initializes some libc internals.
  * For every dynamic library referenced by this executable:
       - loads the dynamic library into memory
       - fixes up references
  * Calls main

The process of loading the required libraries and fixing up references
can be quite time-consuming.

Cheers,

Tim

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