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Re: Alpha DT_RELA

From: Richard Henderson <rth at redhat dot com>
To: Alan Modra <amodra at gmail dot com>
Cc: binutils at sourceware dot org
Date: Tue, 21 Feb 2017 07:19:28 +1100
Subject: Re: Alpha DT_RELA
Authentication-results: sourceware.org; auth=none
References: <20170220103127.GZ3731@bubble.grove.modra.org>

On 02/20/2017 09:31 PM, Alan Modra wrote:

Hi Richard,
Most modern targets supported by binutils do not emit DT_RELA when
DT_RELASZ is zero, ie. you have .rela.plt relocs but no .rela.dyn
relocs.  This brings Alpha into line with the rest.  The ELF spec is
arguable regarding this practice so you might not see this as a
desirable change (but see PR21181).  OK?

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 3e90624..b58ed37 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,8 @@
+2017-02-17  Alan Modra  <amodra@gmail.com>
+
+	* elf64-alpha.c (elf64_alpha_size_dynamic_sections): Only emit
+	DT_RELA, DT_RELASZ, and DT_RELAENT when DT_RELASZ is non-zero.
+
 2017-02-20  Alan Modra  <amodra@gmail.com>


Looks good.  Thanks for fixing this up.


r~

References:
- Alpha DT_RELA
  - From: Alan Modra

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