[Bug malloc/22057] malloc_usable_size is broken with mcheck

cvs-commit at gcc dot gnu.org sourceware-bugzilla@sourceware.org
Tue Jul 13 01:14:13 GMT 2021


https://sourceware.org/bugzilla/show_bug.cgi?id=22057

--- Comment #2 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by H.J. Lu <hjl@sourceware.org>:

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=84ea6ea24bd5bef674ce16a2832dbbe4d514e6d9

commit 84ea6ea24bd5bef674ce16a2832dbbe4d514e6d9
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Mon Jul 12 14:36:39 2021 -0700

    mcheck: Align struct hdr to MALLOC_ALIGNMENT bytes [BZ #28068]

    1. Align struct hdr to MALLOC_ALIGNMENT bytes so that malloc hooks in
    libmcheck align memory to MALLOC_ALIGNMENT bytes.
    2. Remove tst-mallocalign1 from tests-exclude-mcheck for i386 and x32.
    3. Add tst-pvalloc-fortify and tst-reallocarray to tests-exclude-mcheck
    since they use malloc_usable_size (see BZ #22057).

    This fixed BZ #28068.

    Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>

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