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From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/98729] [11 Regression] GCC 11 MinGW Windows build
 doesn't generate working PE executables
Date: Mon, 01 Feb 2021 17:39:53 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98729

Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ebotcazou at gcc dot gnu.o=
rg
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2021-02-01

--- Comment #10 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> I don't know what this section does, but I did notice it contains a
> reference to `cygwin.S`, which I didn't expect to see in a pure MinGW bin=
ary.

The file just implements the stack checking routine mandated by Windows.

Can you post the list of sections given by objdump?=