From: "Luck, Tony" <tony.luck@intel.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [Fastboot] [PATCH]IA64 kexec/kdump patch for INIT
Date: Thu, 07 Sep 2006 17:03:27 +0000 [thread overview]
Message-ID: <20060907170327.GA5954@intel.com> (raw)
In-Reply-To: <82C6D21B8B7A9Cindou.takao@jp.fujitsu.com>
On Thu, Sep 07, 2006 at 06:44:30PM +0200, Andreas Schwab wrote:
> 0 is modified by the result of the GOT relocation for __gp
The 0 is the already modified value.
> __gp has no special meaning for gcc. It's just another global variable.
Precisely the problem. On ia64 gcc likes to compute the address
of global variables as offsets from __gp ... which it knows is
always available in r1. So __gp gets no special treatment at all,
gcc knows that __gp = GOT + offset (and for __gp "offset" is 0).
-Tony
next prev parent reply other threads:[~2006-09-07 17:03 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
2006-09-07 17:03 ` Luck, Tony [this message]
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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