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a.out: Stop building a.out/osf1 support on alpha and m68k

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There has been repeated discussion on removing a.out support, the most
recent was[1].  Having read through a bunch of the discussion it looks
like no one has see any reason why we need to keep a.out support.

The m68k maintainer has even come out in favor of removing a.out
support[2].

At a practical level with only two rarely used architectures building
a.out support, it gets increasingly hard to test and to care about.
Which means the code will almost certainly bit-rot.

Let's see if anyone cares about a.out support on the last two
architectures that build it, by disabling the build of the support in
Kconfig.  If anyone cares, this can be easily reverted, and we can then
have a discussion about what it is going to take to support a.out
binaries in the long term.

[1] https://lkml.kernel.org/r/20220113160115.5375-1-bp@alien8.de
[2] https://lkml.kernel.org/r/CAMuHMdUbTNNr16YY1TFe=-uRLjg6yGzgw_RqtAFpyhnOMM5Pvw@mail.gmail.com

Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: linux-alpha@vger.kernel.org
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@lists.linux-m68k.org
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/87ilsmdhb5.fsf_-_@email.froward.int.ebiederm.org
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Link: https://lore.kernel.org/lkml/CAMuHMdVLyu6LNONJa1QcMGv__bWSCRvVq9haD7=fOm1k5O3Pnw@mail.gmail.com
This commit is contained in:
Eric W. Biederman 2022-03-09 14:03:42 -06:00 committed by Kees Cook
parent 2722ae9c94
commit 19e8b701e2
2 changed files with 0 additions and 2 deletions
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1
arch/alpha/Kconfig
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@ -12,7 +12,6 @@ config ALPHA
select FORCE_PCI if !ALPHA_JENSEN
select PCI_DOMAINS if PCI
select PCI_SYSCALL if PCI
select HAVE_AOUT
select HAVE_ASM_MODVERSIONS
select HAVE_PCSPKR_PLATFORM
select HAVE_PERF_EVENTS

1
arch/m68k/Kconfig
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@ -17,7 +17,6 @@ config M68K
select GENERIC_CPU_DEVICES
select GENERIC_IOMAP
select GENERIC_IRQ_SHOW
select HAVE_AOUT if MMU
select HAVE_ASM_MODVERSIONS
select HAVE_DEBUG_BUGVERBOSE
select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_HAS_NO_UNALIGNED