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[Bug binutils/26469] UBSAN error: bfd/elflink.c:8742:7:

From: cvs-commit at gcc dot gnu.org
Subject: [Bug binutils/26469] UBSAN error: bfd/elflink.c:8742:7:
Date: Thu, 27 Aug 2020 12:36:33 +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 4b69ce9b9121090ac42cf8fa20b949bbd9afff95
Author: Alan Modra <amodra@gmail.com>
Date:   Thu Aug 27 21:44:41 2020 +0930

    PR26469 UBSAN: elflink.c:8742 shift exponent 6148914691236511722

            PR 26469
            * elflink.c: Include limits.h.
            (CHAR_BIT): Provide fallback define.
            (set_symbol_value): Correct complex reloc comment.
            (undefined_reference): Set bfd_error.
            (BINARY_OP_HEAD, BINARY_OP_TAIL): Split out from..
            (BINARY_OP): ..this.
            (eval_symbol): Limit shifts.  Force unsigned for left shift.
            Catch divide by zero.
            * configure.ac (AC_CHECK_HEADERS): Combine, sort and add limits.h.
            * configure: Regenerate.
            * config.in: Regenerate.

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