linux-kernel - Re: [PATCH v2 0/8] clean up vdso-layout.lds.S

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Message-ID: <4A367C09.80008@zytor.com>
Date:	Mon, 15 Jun 2009 09:51:21 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Petr Tesarik <ptesarik@...e.cz>
CC:	Sam Ravnborg <sam@...nborg.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Andi Kleen <andi@...stfloor.org>,
	Roland McGrath <roland@...hat.com>
Subject: Re: [PATCH v2 0/8] clean up vdso-layout.lds.S

Petr Tesarik wrote:
> Petr Tesarik píše v Po 15. 06. 2009 v 17:16 +0200:
>> [...]
>> An example can probably explain it better:
>>
>> $ cat >shared.c <<EOF
>> int shared_object[100];
>> EOF
>> $ cat >exe.c <<EOF
>> #include <stdio.h>
>> extern int shared_object[100];
>> int main(void) {
>> 	printf("%p\n", &shared_object); 
>> 	return 0;
>> }
>> EOF
> 
> BTW this example demonstrates that there is one section which should be
> included in .data but is not:
> 
> 	*(COMMON)
> 
> I'll send a patch later.
> 

*(COMMON) is BSS, not data...

	-hpa
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