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From: Andreas Schwab <schwab@suse.de>
To: linux-ia64@vger.kernel.org
Subject: Re: [Fastboot] [PATCH]IA64 kexec/kdump patch for INIT
Date: Thu, 07 Sep 2006 16:44:30 +0000	[thread overview]
Message-ID: <jek64fr5ht.fsf@sykes.suse.de> (raw)
In-Reply-To: <82C6D21B8B7A9Cindou.takao@jp.fujitsu.com>

"Luck, Tony" <tony.luck@intel.com> writes:

> But looking before that instruction r37 is a copy of r39 (mov r37=r39).
> r39 was calculated by "addl r39=0,r1" i.e. r1+0, also known as "r1".

0 is modified by the result of the GOT relocation for __gp.

> and put it in head.S to bypass this "cleverness" by gcc and

__gp has no special meaning for gcc.  It's just another global variable.

Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
PGP key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."

  parent reply	other threads:[~2006-09-07 16:44 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-09-07  1:18 [Fastboot] [PATCH]IA64 kexec/kdump patch for INIT Takao Indoh
2006-09-07  1:32 ` Zou, Nanhai
2006-09-07  3:21 ` Takao Indoh
2006-09-07  8:45 ` Zou, Nanhai
2006-09-07  8:48 ` Yu Luming
2006-09-07  9:08 ` Andreas Schwab
2006-09-07  9:17 ` Takao Indoh
2006-09-07 13:01 ` Yu, Luming
2006-09-07 14:48 ` Takao Indoh
2006-09-07 16:38 ` Luck, Tony
2006-09-07 16:44 ` Andreas Schwab [this message]
2006-09-07 17:03 ` Luck, Tony
2006-09-08  1:20 ` Zou, Nanhai
2006-09-11  6:12 ` Zou Nan hai
2006-09-11  6:56 ` Keith Owens
2006-09-11 16:18 ` Luck, Tony
2006-09-13  2:27 ` Takao Indoh
2006-09-13  7:10 ` Keith Owens
2006-09-13  7:58 ` Zou, Nanhai

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