Use machine header file for param configuration.

On 31/07/15 10:34, Richard Earnshaw wrote:
> On 31/07/15 10:28, Andre Vieira wrote:
>> newlib/ChangeLog:
>> 2015-07-28  Andre Vieira  <andre.simoesdiasvieira@arm.com>
>>
>>    * libc/sys/arm/sys/param.h: Include machine/param.h
>>    (HZ, NOFILE, PATHSIZE): Define.
>>
>> param_refactor_1.patch
>>
>>
>>  From abc2d5f3398721f6ca891b9581feaba58730b19c Mon Sep 17 00:00:00 2001
>> From: Andre Simoes Dias Vieira <andsim01@arm.com>
>> Date: Tue, 28 Jul 2015 12:10:59 +0100
>> Subject: [PATCH 1/2] Moved param configuration to machine/param.h
>>
>> ---
>>   newlib/libc/sys/arm/sys/param.h | 12 ++++++++++--
>>   1 file changed, 10 insertions(+), 2 deletions(-)
>>
>> diff --git a/newlib/libc/sys/arm/sys/param.h b/newlib/libc/sys/arm/sys/param.h
>> index adc066e9a8756e07edaaa8cadc79b5f05c996ac9..622c371972ab3c9dbb93ea5c51323a593e2a171a 100644
>> --- a/newlib/libc/sys/arm/sys/param.h
>> +++ b/newlib/libc/sys/arm/sys/param.h
>> @@ -3,9 +3,17 @@
>>   #ifndef _SYS_PARAM_H
>>   # define _SYS_PARAM_H
>>
>> -# define HZ (100)
>> -# define NOFILE	(60)
>> +#include <machine/param.h>
>> +
>> +#ifndef HZ
>> +# define HZ (60)
>
> Why have you changed the value for HZ?  It seems that, by convention,
> ARM boards have always used 100.
>
> R.
>
>> +#endif
>> +#ifndef NOFILE
>> +# define NOFILE>(60)
>> +#endif
>> +#ifndef PATHSIZE
>>   # define PATHSIZE (1024)
>> +#endif
>>
>>   #define BIG_ENDIAN      4321
>>   #define LITTLE_ENDIAN   1234
>>
>
Hi Richard,

ARM's machine/param.h that is included in "#include <machine/param.h>",
before the 'ifndef' already defines HZ to be 100. This file was already
there, it was just not being used. I understand that this 'ifndef' might
be confusing, though I decided to add it to mimic the behavior of the
default sys/param.h.

There is however an unrelated issue with this patch, a typo in the
"#define NOFILE" that crept in there due to some copy pasting when
splitting the patch.

Here is a fixed version.

BR,
Andre

newlib/ChangeLog:
2015-07-28  Andre Vieira  <andre.simoesdiasvieira@arm.com>

   * libc/sys/arm/sys/param.h: Include machine/param.h
   (HZ, NOFILE, PATHSIZE): Define.

From abc2d5f3398721f6ca891b9581feaba58730b19c Mon Sep 17 00:00:00 2001
From: Andre Simoes Dias Vieira <andsim01@arm.com>
Date: Tue, 28 Jul 2015 12:10:59 +0100
Subject: [PATCH 1/2] Moved param configuration to machine/param.h

newlib/libc/sys/arm/sys/param.h

@@ -3,9 +3,17 @@
 #ifndef _SYS_PARAM_H
 # define _SYS_PARAM_H
 
-# define HZ (100)
+#include <machine/param.h>
+
+#ifndef HZ
+# define HZ (60)
+#endif
+#ifndef NOFILE
 # define NOFILE (60)
+#endif
+#ifndef PATHSIZE
 # define PATHSIZE (1024)
+#endif
 
 #define BIG_ENDIAN      4321
 #define LITTLE_ENDIAN   1234