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Re: [gold RFC] Do not generate dynamic reloc for unresolved TLS symbol

From: Cary Coutant <ccoutant at google dot com>
To: Cary Coutant <ccoutant at google dot com>, Binutils <binutils at sourceware dot org>, Ian Lance Taylor <iant at google dot com>, Jing Yu <jingyu at google dot com>, Han Shen <shenhan at google dot com>, Doug Kwan <dougkwan at google dot com>, David Miller <davem at davemloft dot net>
Date: Wed, 28 Jan 2015 15:57:54 -0800
Subject: Re: [gold RFC] Do not generate dynamic reloc for unresolved TLS symbol
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References: <CAHACq4oi4UT7LLv-vz5+ocpkPU8zwtyOQ8Gas_S3WdB_7WgN2w at mail dot gmail dot com> <20141218224458 dot GC31055 at bubble dot grove dot modra dot org> <CAHACq4q3UBVdhiXzeT6e2H0t-c_DA926C9s61+-YAsYzmyTs2g at mail dot gmail dot com>

> So, yeah, it looks like the expected behavior depends on the
> relocation, so patching it in target-independent code isn't going to
> work (unless I pass an is_pic_relocation flag to
> final_value_is_known()).

I've committed the following patch to make this work for x86_64.

Alan, do you think something similar is needed for PPC?

-cary


2015-01-28  Cary Coutant  <ccoutant@google.com>

gold/
        * x86_64.cc (Target_x86_64::Scan::global): Allow IE-to-LE optimization
        for undef TLS symbols.
        (Target_x86_64::Relocate::relocate_tls): Likewise.
        (Target_x86_64::Relocate::tls_ie_to_le): Likewise.

Attachment: patch-undef-tls.txt
Description: Text document

Follow-Ups:
- Re: [gold RFC] Do not generate dynamic reloc for unresolved TLS symbol
  - From: Alan Modra

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