On Tue, 2016-06-28 at 18:07 -0400, valdis.kletni...@vt.edu wrote:
> On Tue, 28 Jun 2016 14:49:15 -0700, Joe Perches said:
>
> >
> > Another potentially useful plugin, especially for embedded systems,
> > would be to compress any string literal marked with
> >
> > __attribute__((format(print
On Tue, 28 Jun 2016 14:49:15 -0700, Joe Perches said:
> 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/v
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
On Tue, 28 Jun 2016 21:02:54 +0200
Rasmus Villemoes wrote:
> It'll get placed in multiple sections by the compiler, and nothing bad
> happens. String deduplication is something the linker does to sections
> equipped with appropriate flags. So in this case that of course means
Note that I didn't
On Tue, 28 Jun 2016 19:00:22 +0200
Mathias Krause wrote:
> > section vanilla vanilla + initifychange
> > ---
> > .rodata 39059688 (0x25400e8)38527210 (0x24be0ea)-532478
> > .data
On Tue, Jun 28 2016, Joe Perches wrote:
>> What happens to string deduplication when one string
>> is in an init function and the same string is also used
>> in a non-init function in the same compilation unit?
>>
>> foo.c
>>
>> __init void initfunc(void)
>> {
>> pr_info("%s: I'm here\n",
On Tue, 2016-06-28 at 09:35 -0700, Joe Perches wrote:
> (adding Mathias Krause who did something similar via macros in 2014)
>
> https://lkml.org/lkml/2014/6/22/149
>
> On Tue, 2016-06-28 at 13:34 +0200, Emese Revfy wrote:
> >
> > I would like to introduce the initify gcc plugin. The kernel alre
Hi Emese,
On Tue, Jun 28, 2016 at 01:34:07PM +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
(adding Mathias Krause who did something similar via macros in 2014)
https://lkml.org/lkml/2014/6/22/149
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
On Tue, 28 Jun 2016 13:34:07 +0200
Emese Revfy wrote:
> * automatically discover init/exit functions and apply the __init or
>__exit attributes on them
Hi,
I have a question about this. If a function is called by __init and __exit
functions as well then
I move it to the __exit section. I
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