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[Bug ld/27952] ld: Disallow ET_DYN DF_1_PIE linker input?

From: cvs-commit at gcc dot gnu.org
Subject: [Bug ld/27952] ld: Disallow ET_DYN DF_1_PIE linker input?
Date: Fri, 11 Jun 2021 08:04:39 +0000


--- Comment #2 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot 
gnu.org> ---
The master branch has been updated by Alan Modra <amodra@sourceware.org>:


commit f64b9b13ce4bb927f47a1fe0257c3794c6357c8c
Author: Alan Modra <amodra@gmail.com>
Date:   Fri Jun 11 14:06:47 2021 +0930

    PR27952, Disallow ET_DYN DF_1_PIE linker input

    This patch adds a new elf_tdata flag, is_pie, set during the linker's
    open_input_bfds processing.  The flag is then used to reject attempts
    to link a PIE as if it were a shared library.

            PR 27952
            * elf-bfd.h (struct elf_obj_tdata): Add is_pie.
            * elflink.c (elf_link_add_object_symbols): Set is_pie.
            PR 27952
            * ldelf.c (ldelf_after_open): Error on input PIEs too.

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