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From: "vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug gdb/27806] free(): invalid pointer during gdb.ada/fixed_cmp.exp
Date: Fri, 30 Apr 2021 14:00:08 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D27806

--- Comment #5 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Tom de Vries from comment #4)
> So, the sequence of events seems to be:
>=20
> 1. Gdb sets gmp memory functions during _initialize_gmp_utils:
> ...
> #1  0x00000000007498ba in _initialize_gmp_utils ()
>     at /data/gdb_versions/devel/src/gdb/gmp-utils.c:242
> 242       mp_set_memory_functions (xmalloc, xrealloc_for_gmp, xfree_for_g=
mp);
> ...
>=20
> 2. libguille overwrites those memory functions during
>    gdbscm_finish_initialization:
> ...
> #1  0x00007ffff7e8bfb2 in scm_init_numbers () at numbers.c:10393
> 10393       mp_set_memory_functions (custom_gmp_malloc,
> ...
>=20

Before the commit, the order of 1 and 2 was reversed.

--=20
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