Re: [PATCH v1 0/2] Introduce the initify gcc plugin

Joe Perches
2016-06-28T21:50:29Z

On Tue, 2016-06-28 at 13:34 +0200, Emese Revfy wrote:
> I would like to introduce the initify gcc plugin. The kernel already has
> a mechanism to free up code and data memory that is only used during kernel
> or module initialization.
> This plugin will teach the compiler to find more such code and data that
> can be freed after initialization. It reduces memory usage.
> The initify gcc plugin can be useful for embedded systems.

Another potentially useful plugin, especially for embedded systems,
would be to compress any string literal marked with

__attribute__((format(printf, string-index,)))

and decompress the compressed format on the stack in lib/vsprintf.c
vsnprintf just before use.

I've started to experiment with that.