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Tue, 17 Jun 2025 23:18:06 -0400 (EDT) Date: Wed, 18 Jun 2025 13:19:01 +1000 (AEST) From: Finn Thain To: Jason Thorpe cc: Laurent Vivier , John Paul Adrian Glaubitz , port-m68k , debian-68k , linux-m68k Subject: Re: Question on BIGGEST_ALIGNMENT in GCC on NetBSD/m68k In-Reply-To: <758E94EA-113D-4FB4-B5EF-1203FB67F520@me.com> Message-ID: References: <49a62eda6aea856df248aa223365b5230020d829.camel@physik.fu-berlin.de> <569d73fb-8ad5-46f0-bf4c-568919f319e7@helsinkinet.fi> <022ab204-7be9-4f6a-a92f-2601fae1f146@vivier.eu> <5d8619dfe4134319b558684209f2b89c5c1447cf.camel@physik.fu-berlin.de> <479479a8-a315-4687-af2b-4fc0efed7a6b@vivier.eu> <708ea8ed-c1b3-4f9a-83fe-af979bc194b1@vivier.eu> <0cf54bd607a7926414d6c9a0350fe93898a235ce.camel@physik.fu-berlin.de> <1960b583-2100-468e-8e1e-face3f7f10d6@vivier.eu> <5d8b1560fb29bec6d56ff6d8aafb4931a7079b63.camel@physik.fu-berlin.de> <7a80e6f1-1ac8-4082-b37f-f577ca0bdd5d@vivier.eu> <758E94EA-113D-4FB4-B5EF-1203FB67F520@me.com> Precedence: bulk X-Mailing-List: linux-m68k@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/mixed; boundary=-14638117741461144186175021674129 This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---14638117741461144186175021674129 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE On Mon, 16 Jun 2025, Jason Thorpe wrote: >=20 > > On Jun 16, 2025, at 2:10=E2=80=AFAM, Laurent Vivier = wrote: > >=20 > > I think you need to change the ABI type in the ELF header:=20 > > https://fr.wikipedia.org/wiki/Executable_and_Linkable_Format >=20 > 4-byte alignment binaries should have ELFOSABI_SYSV (0) (since that ABI= =20 > spec is where the 4 byte alignment comes from). If Linux/m68k is=20 > already using that, then those binaries are broken by definition. >=20 > Let=E2=80=99s hope existing Linux/m68k binaries are using ELFOSABI_LINUX = /=20 > ELFOSABI_GNU (3) (sorry, I don=E2=80=99t have any handy to check). >=20 > If the existing binaries correctly label themselves has having the=20 > Linux-specific ABI, then this is trivial and there=E2=80=99s no reason to= use a=20 > note to differentiate them. >=20 Do you know of a good solution for this open bug? https://sourceware.org/bugzilla/show_bug.cgi?id=3D30273 ---14638117741461144186175021674129--