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Re: [PATCH 1/2] ld: Define _edata, __bss_start, and _end only for executables

From: "H.J. Lu" <hjl dot tools at gmail dot com>
To: Joseph Myers <joseph at codesourcery dot com>
Cc: Alan Modra <amodra at gmail dot com>, Binutils <binutils at sourceware dot org>, "Maciej W. Rozycki" <macro at mips dot com>, Dave Anglin <dave dot anglin at bell dot net>
Date: Tue, 5 Jun 2018 05:50:55 -0700
Subject: Re: [PATCH 1/2] ld: Define _edata, __bss_start, and _end only for executables
References: <20180530215940.20797-1-hjl.tools@gmail.com> <20180530215940.20797-2-hjl.tools@gmail.com> <20180531004407.GR23663@bubble.grove.modra.org> <CAMe9rOqpyn0QBO2C+fG4MU_Z-0b83ag6Q-iyMcfxhu4O5FwoEg@mail.gmail.com> <20180602132241.GC7660@bubble.grove.modra.org> <alpine.DEB.2.20.1806041538270.15212@digraph.polyomino.org.uk>

On Mon, Jun 4, 2018 at 8:40 AM, Joseph Myers <joseph@codesourcery.com> wrote:
> On Sat, 2 Jun 2018, Alan Modra wrote:
>
>> elf32_tic6x_le_sh has another odd use of EXECUTABLE_SYMBOLS,
>> presumably because R_C6000_SBR_* relocs have an implicit reference to
>> __c6xabi_DSBT_BASE.  I suspect those relocs can appear in shared
>> libraries.  So again something for the port maintainer, Joseph, to
>
> Yes, they should be valid in shared libraries.
>

Here is the new set of patches:

https://sourceware.org/ml/binutils/2018-06/msg00072.html

A target must set EXCLUDE_SHLIB_SYMBOLS to opt in.

-- 
H.J.

Follow-Ups:
- Define various symbols conditionally in shared libraries executables
  - From: Alan Modra

References:
- Re: [PATCH 1/2] ld: Define _edata, __bss_start, and _end only for executables
  - From: H.J. Lu
- Re: [PATCH 1/2] ld: Define _edata, __bss_start, and _end only for executables
  - From: Alan Modra
- Re: [PATCH 1/2] ld: Define _edata, __bss_start, and _end only for executables
  - From: Joseph Myers

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