On Tue, May 19, 2020 at 04:32:38PM +0200, Geert Uytterhoeven wrote: > Hi Christian, > > On Tue, May 19, 2020 at 3:15 PM Christian Brauner > <christian.brauner@xxxxxxxxxx> wrote: > > On Tue, May 19, 2020 at 06:56:36AM -0500, Eric W. Biederman wrote: > > > Andreas Schwab <schwab@xxxxxxxxxxxxxx> writes: > > > > On Mai 18 2020, Eric W. Biederman wrote: > > > >> If it was only libc4 and libc5 that used the uselib system call then it > > > >> can probably be removed after enough time. > > > > > > > > Only libc4 used it, libc5 was already ELF. > > > > > > binfmt_elf.c supports uselib. In a very a.out ish way. Do you know if > > > that support was ever used? > > > > > > If we are truly talking a.out only we should be able to make uselib > > > conditional on a.out support in the kernel which is strongly mostly > > > disabled at this point. > > > > The only ones that even allow setting AOUT: > > > > arch/alpha/Kconfig: select HAVE_AOUT > > arch/m68k/Kconfig: select HAVE_AOUT if MMU > > > > and x86 deprecated it March 2019: > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=eac616557050737a8d6ef6fe0322d0980ff0ffde > > Quoting myself (for the second time this month): > "I think it's safe to assume no one still runs a.out binaries on m68k." > http://lore.kernel.org/r/CAMuHMdW+m0Q+j3rsQdMXnrEPm+XB5Y2AQrxW5sD1mZAKgmEqoA@xxxxxxxxxxxxxx Well, it's just a great thing to hear. :) Fyi, I once tried to give a demo with a Slackware version in a container which pre-dated ELF on a x86 kernel with AOUT. It didn't go well... Christian
