Hi Jason, On Mon, 2025-06-16 at 07:43 -0700, Jason Thorpe wrote: > > On Jun 16, 2025, at 2:10 AM, Laurent Vivier <[email protected]> wrote: > > > > I think you need to change the ABI type in the ELF header: > > https://fr.wikipedia.org/wiki/Executable_and_Linkable_Format > > 4-byte alignment binaries should have ELFOSABI_SYSV (0) (since that ABI spec > is where the 4 byte alignment comes from). If Linux/m68k is already using > that, > then those binaries are broken by definition.
Unfortunately, that's exactly the case: root@mitchy:~# uname -a Linux mitchy 6.15.0-rc2-virt #1 Thu May 1 10:27:28 UTC 2025 m68k GNU/Linux root@mitchy:~# readelf -h /bin/bash |grep "OS/ABI" OS/ABI: UNIX - System V root@mitchy:~# > Let’s hope existing Linux/m68k binaries are using ELFOSABI_LINUX / > ELFOSABI_GNU (3) > (sorry, I don’t have any handy to check). hppa is using it: glaubitz@panama:~$ glaubitz@panama:~$ uname -a Linux panama 6.12.32-parisc64 #1 SMP Debian 6.12.32-1 (2025-06-07) parisc64 GNU/Linux glaubitz@panama:~$ readelf -h /bin/bash|grep "OS/ABI" OS/ABI: UNIX - GNU glaubitz@panama:~$ > If the existing binaries correctly label themselves has having the > Linux-specific ABI, > then this is trivial and there’s no reason to use a note to differentiate > them. I don't have a strong preference as both of them are used in the Linux kernel. Adrian -- .''`. John Paul Adrian Glaubitz : :' : Debian Developer `. `' Physicist `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913
