Re: [RFC PATCH] bfd/elf32-arm.c: Set st_value to zero for undefined symbols.

[Will Newton <will dot newton at linaro dot org>]

On 16 January 2014 10:28, Will Newton <will.newton@linaro.org> wrote:
> I'm not sure what the implications of this patch are, so I thought I would
> post it here in the hope that someone can explain what might break.
>
> The issue comes from a report that Qt does not work correctly on ARM when
> built with -Bsymbolic:
>
> http://lists.linaro.org/pipermail/linaro-toolchain/2014-January/003942.html
>
> Unless point_equality_needed is set then set st_value to be zero
> for undefined symbols.
>
> bfd/ChangeLog:
>
> 2014-01-10  Will Newton  <will.newton@linaro.org>
>
>         * elf32-arm.c (elf32_arm_check_relocs): Set
>         pointer_equality_needed for absolute references within
>         executable links.
>         (elf32_arm_finish_dynamic_symbol): Set st_value to zero
>         unless pointer_equality_needed is set.
>
> ld/testsuite/ChangeLog:
>
> 2014-01-10  Will Newton  <will.newton@linaro.org>
>
>         * ld-arm/ifunc-14.rd: Update symbol values.
> ---
>  bfd/elf32-arm.c                 | 7 ++++++-
>  ld/testsuite/ld-arm/ifunc-14.rd | 4 ++--
>  2 files changed, 8 insertions(+), 3 deletions(-)

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-- 
Will Newton
Toolchain Working Group, Linaro