Re: [Xenomai-core] [PATCH] Check for NPTL and factor user-space skins initialization.

[Philippe Gerum <rpm@xenomai.org>]

Jim Cromie wrote:
> Gilles Chanteperdrix wrote:
> 
>> For review...
>>
>>  
>>
>> +#ifndef __KERNEL__
>> +#include <stdio.h>
>> +#include <stdlib.h>
>> +#include <string.h>
>> +#include <unistd.h>
>> +
>> +static inline void xeno_x86_features_check(void)
>> +{
>> +#ifdef CONFIG_XENO_X86_SEP
>> +  size_t n = confstr(_CS_GNU_LIBPTHREAD_VERSION, NULL, 0);
>> +  if (n > 0)
>> +      {
>>
>>   
> 
> since this is user code, its possible to read /proc/cpuinfo,
> and find the sep flag.
> 
> Is this worth doing also ?

Some deeply embedded stuff (something like buried in the silicon 
actually...) might configure out CONFIG_PROC_FS, so we can't rely on 
this pseudo-fs to be always present.

> if so, I can work a patch up later, unless you feel the urge.
> 
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-- 

Philippe.