linux-kernel - Re: [Kgdb-bugreport] [PATCH 3/5] x86: convert to asm-generic ptrace.h

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Message-ID: <4DA730F9.4030803@mvista.com>
Date:	Thu, 14 Apr 2011 21:38:01 +0400
From:	Sergei Shtylyov <sshtylyov@...sta.com>
To:	"H. Peter Anvin" <hpa@...or.com>
CC:	Mike Frysinger <vapier@...too.org>,
	Roland McGrath <roland@...hat.com>,
	Oleg Nesterov <oleg@...hat.com>, linux-kernel@...r.kernel.org,
	kgdb-bugreport@...ts.sourceforge.net,
	Jason Wessel <jason.wessel@...driver.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-sh@...r.kernel.org, x86@...nel.org,
	Paul Mundt <lethal@...ux-sh.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>
Subject: Re: [Kgdb-bugreport] [PATCH 3/5] x86: convert to asm-generic ptrace.h

Hello.

H. Peter Anvin wrote:

>>> Signed-off-by: Mike Frysinger <vapier@...too.org>
>>> ---
>>> arch/x86/include/asm/ptrace.h | 18 +++++-------------
>>> 1 files changed, 5 insertions(+), 13 deletions(-)

>>> diff --git a/arch/x86/include/asm/ptrace.h
>>> b/arch/x86/include/asm/ptrace.h
>>> index 78cd1ea..98a5e97 100644
>>> --- a/arch/x86/include/asm/ptrace.h
>>> +++ b/arch/x86/include/asm/ptrace.h
>>> @@ -136,6 +136,7 @@ struct cpuinfo_x86;
>>> struct task_struct;
>>>
>>> extern unsigned long profile_pc(struct pt_regs *regs);
>>> +#define profile_pc profile_pc

>> Er, won't this lead to infinite recursion in preprocessor? :-)

>> WBR, Sergei

> No.

    Strange, I thought the macro expansion is the subject to other macro expansions.

>     -hpa

WBR, Sergei
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