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[Bug ld/29259] ld -r may create reloc sections with unordered relocs aga

From: cvs-commit at gcc dot gnu.org
Subject: [Bug ld/29259] ld -r may create reloc sections with unordered relocs again
Date: Sat, 18 Jun 2022 10:43:50 +0000


--- Comment #1 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 fba1ac87dcb76e61f270d236f1e7c8aaec80f9c4
Author: Tomoaki Kawada <kawada@kmckk.co.jp>
Date:   Thu Jun 16 09:54:30 2022 +0000

    Fix the sorting algorithm for reloc entries

    The optimized insertion sort algorithm in `elf_link_adjust_relocs`
    incorrectly assembled "runs" from unsorted entries and inserted them to an
    already-sorted prefix, breaking the loop invariants of insertion sort.
    This commit updates the run assembly loop to break upon encountering a
    non-monotonic change in the sort key.

            PR 29259
            * elflink.c (elf_link_adjust_relocs): Ensure run being inserted
            is sorted.
            * testsuite/ld-elf/pr29259.d,
            * testsuite/ld-elf/pr29259.s,
            * testsuite/ld-elf/pr29259.t: New test.

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