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Re: RFC: Support link with mixed IR/non-IR objects

From: Andi Kleen <ak at linux dot intel dot com>
To: "H.J. Lu" <hjl dot tools at gmail dot com>
Cc: "H.J. Lu" <hongjiu dot lu at intel dot com>, binutils at sourceware dot org
Date: Mon, 07 May 2012 16:18:49 -0700
Subject: Re: RFC: Support link with mixed IR/non-IR objects
References: <20120506205217.GA3513@intel.com>

On 5/6/2012 1:52 PM, H.J. Lu wrote:

Hi,

This is a re-submit of implemenation of SHT_GNU_OBJECT_ONLY:

http://sourceware.org/ml/binutils/2011-04/msg00404.html
The motivation is to provide transparent support for LTO with "ld -r".
It is used for Linux kernel LTO build.

Thanks HJ. I've been working for some time on a linux kernel LTO build. The Linux kernel absolutely needs this feature to build with LTO. The build system heavily relies on ld -r and it would be very intrusive to avoid this. As more people are starting to use this mainline binutils support would be good.

Please consider adding these patches.

-Andi

Follow-Ups:
- Re: RFC: Support link with mixed IR/non-IR objects
  - From: Alan Modra

References:
- RFC: Support link with mixed IR/non-IR objects
  - From: H.J. Lu

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