linux-kernel - Re: CONFIG_KPROBES=y build requires gawk

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Message-ID: <4B2A0B30.5040906@suse.cz>
Date:	Thu, 17 Dec 2009 11:42:56 +0100
From:	Michal Marek <mmarek@...e.cz>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Sam Ravnborg <sam@...nborg.org>, Roland Dreier <rdreier@...co.com>,
	Masami Hiramatsu <mhiramat@...hat.com>,
	Andrew Isaacson <adi@...are.com>,
	Ingo Molnar <mingo@...hat.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org,
	Rob Landley <rob@...dley.net>
Subject: Re: CONFIG_KPROBES=y build requires gawk

On 17.12.2009 06:56, H. Peter Anvin wrote:
> On 12/16/2009 09:45 PM, Sam Ravnborg wrote:
>>>
>>> diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile
>>> index 45b20e4..0c46d60 100644
>>> --- a/arch/x86/lib/Makefile
>>> +++ b/arch/x86/lib/Makefile
>>> @@ -5,7 +5,7 @@
>>>  inat_tables_script = $(srctree)/arch/x86/tools/gen-insn-attr-x86.awk
>>>  inat_tables_maps = $(srctree)/arch/x86/lib/x86-opcode-map.txt
>>>  quiet_cmd_inat_tables = GEN     $@
>>> -      cmd_inat_tables = $(AWK) -f $(inat_tables_script) $(inat_tables_maps) > $@ || rm -f $@
>>> +      cmd_inat_tables = LC_ALL=C $(AWK) -f $(inat_tables_script) $(inat_tables_maps) > $@ || rm -f $@
>>
>> This will result in error messages in english always from awk - no?
>> Some people will care.
>>
> 
> True, we probably don't want to set LC_MESSAGES.  Which means:
> 
> diff --git a/Makefile b/Makefile
> index 33d4732..357e83b 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -302,6 +302,13 @@ MAKEFLAGS += --include-dir=$(srctree)
>  $(srctree)/scripts/Kbuild.include: ;
>  include $(srctree)/scripts/Kbuild.include
> 
> +# Avoid funny character set dependencies
> +LC_ALL=
> +LC_CTYPE=C
> +LC_COLLATE=C
> +LC_NUMERIC=C
> +export LC_ALL LC_CTYPE LC_COLLATE LC_NUMERIC
> +
>  # Make variables (CC, etc...)
> 
>  AS		= $(CROSS_COMPILE)as
> 
> 
> OK?

Definitely, setting this globally makes sure we don't run into similar
issues elsewhere. (I have to read the rest of the thread now).

Acked-by: Michal Marek <mmarek@...s.cz>

Michal
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