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

From Joe Perches <joe@perches.com>
Newsgroups linux.kernel
Subject Re: [PATCH v1 0/2] Introduce the initify gcc plugin
Date 2016-06-29 00:00 +0200
Message-ID <rP9d0-40a-21@gated-at.bofh.it> (permalink)
References <rOZnk-6lK-27@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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.

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Thread

[PATCH v1 0/2] Introduce the initify gcc plugin Emese Revfy <re.emese@gmail.com> - 2016-06-28 13:30 +0200
  [PATCH v1 2/2] Mark functions with the __nocapture attribute Emese Revfy <re.emese@gmail.com> - 2016-06-28 13:40 +0200
    Re: [PATCH v1 2/2] Mark functions with the __nocapture attribute Joe Perches <joe@perches.com> - 2016-06-28 18:50 +0200
      Re: [PATCH v1 2/2] Mark functions with the __nocapture attribute Emese Revfy <re.emese@gmail.com> - 2016-06-28 22:40 +0200
        Re: [PATCH v1 2/2] Mark functions with the __nocapture attribute Joe Perches <joe@perches.com> - 2016-06-28 23:10 +0200
          Re: [PATCH v1 2/2] Mark functions with the __nocapture attribute Emese Revfy <re.emese@gmail.com> - 2016-06-29 20:50 +0200
            Re: [PATCH v1 2/2] Mark functions with the __nocapture attribute Joe Perches <joe@perches.com> - 2016-06-30 02:20 +0200
              Re: [PATCH v1 2/2] Mark functions with the __nocapture attribute Emese Revfy <re.emese@gmail.com> - 2016-07-01 16:00 +0200
    Re: [PATCH v1 2/2] Mark functions with the __nocapture attribute Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2016-06-28 23:00 +0200
      Re: [PATCH v1 2/2] Mark functions with the __nocapture attribute "PaX Team" <pageexec@freemail.hu> - 2016-06-28 23:50 +0200
        Re: [PATCH v1 2/2] Mark functions with the __nocapture attribute Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2016-06-29 00:50 +0200
      Re: [PATCH v1 2/2] Mark functions with the __nocapture attribute Emese Revfy <re.emese@gmail.com> - 2016-06-29 20:40 +0200
  Re: [PATCH v1 0/2] Introduce the initify gcc plugin Emese Revfy <re.emese@gmail.com> - 2016-06-28 13:40 +0200
  [PATCH v1 1/2] Add the initify gcc plugin Emese Revfy <re.emese@gmail.com> - 2016-06-28 13:40 +0200
    Re: [PATCH v1 1/2] Add the initify gcc plugin Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2016-06-28 23:10 +0200
      Re: [PATCH v1 1/2] Add the initify gcc plugin Kees Cook <keescook@chromium.org> - 2016-06-29 17:00 +0200
      Re: [PATCH v1 1/2] Add the initify gcc plugin Emese Revfy <re.emese@gmail.com> - 2016-06-29 21:10 +0200
  Re: [kernel-hardening] [PATCH v1 0/2] Introduce the initify gcc  plugin Mark Rutland <mark.rutland@arm.com> - 2016-06-28 15:00 +0200
    Re: [kernel-hardening] [PATCH v1 0/2] Introduce the initify gcc  plugin Emese Revfy <re.emese@gmail.com> - 2016-06-28 18:10 +0200
      Re: [kernel-hardening] [PATCH v1 0/2] Introduce the initify gcc plugin Kees Cook <keescook@chromium.org> - 2016-06-28 22:50 +0200
        Re: [kernel-hardening] [PATCH v1 0/2] Introduce the initify gcc  plugin Mark Rutland <mark.rutland@arm.com> - 2016-06-29 10:30 +0200
          Re: [kernel-hardening] [PATCH v1 0/2] Introduce the initify gcc  plugin Mark Rutland <mark.rutland@arm.com> - 2016-06-29 20:00 +0200
            Re: [kernel-hardening] [PATCH v1 0/2] Introduce the initify gcc  plugin Emese Revfy <re.emese@gmail.com> - 2016-06-29 20:30 +0200
  Re: [PATCH v1 0/2] Introduce the initify gcc plugin Joe Perches <joe@perches.com> - 2016-06-28 18:40 +0200
    Re: [PATCH v1 0/2] Introduce the initify gcc plugin Joe Perches <joe@perches.com> - 2016-06-28 20:50 +0200
      Re: [PATCH v1 0/2] Introduce the initify gcc plugin Rasmus Villemoes <linux@rasmusvillemoes.dk> - 2016-06-28 21:10 +0200
        Re: [PATCH v1 0/2] Introduce the initify gcc plugin Emese Revfy <re.emese@gmail.com> - 2016-06-28 22:30 +0200
  Re: [PATCH v1 0/2] Introduce the initify gcc plugin Mathias Krause <minipli@ld-linux.so> - 2016-06-28 19:10 +0200
    Re: [PATCH v1 0/2] Introduce the initify gcc plugin Emese Revfy <re.emese@gmail.com> - 2016-06-28 22:30 +0200
  Re: [PATCH v1 0/2] Introduce the initify gcc plugin Joe Perches <joe@perches.com> - 2016-06-29 00:00 +0200
    Re: [kernel-hardening] Re: [PATCH v1 0/2] Introduce the initify gcc plugin Valdis.Kletnieks@vt.edu - 2016-06-29 00:10 +0200
      Re: [kernel-hardening] Re: [PATCH v1 0/2] Introduce the initify gcc  plugin Joe Perches <joe@perches.com> - 2016-06-29 02:00 +0200

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