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From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug ada/100486] Ada build fails for 32bit Windows
Date: Mon, 18 Oct 2021 08:05:50 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100486

--- Comment #58 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
So we have the dreaded mix of 11.x Ada exception code and 10.x unwind code:

#0  0x773bb68b in msvcrt!abort () from C:\WINDOWS\SysWOW64\msvcrt.dll
#1  0x02074f7d in uw_init_context_1 (context=3Dcontext@entry=3D0x1070c890,
    outer_cfa=3Douter_cfa@entry=3D0x1070ca70,
    outer_ra=3D0x406f8a <__gnat_Unwind_RaiseException(_Unwind_Exception*)+1=
7>)
    at ../../../gcc-10.3.0/libgcc/unwind-dw2.c:1593
#2  0x01e2ba3d in _Unwind_RaiseException (exc=3D0x132d8a90)
    at ../../../gcc-10.3.0/libgcc/unwind.inc:93
#3  0x00406f8a in __gnat_Unwind_RaiseException (e=3De@entry=3D0x132d8a90)
    at ../../gcc-11.2.0/gcc/ada/raise-gcc.c:1391

On the one hand, this should no longer exist on the mainline but, on the ot=
her
hand, this has never been problematic for AdaCore's internal builds.=