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powerpc/64: Make COMPAT user-selectable disabled on littleendian by default.

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On bigendian ppc64 it is common to have 32bit legacy binaries but much
less so on littleendian.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/41393d6e895b0d3a47ee62f8f51e1cf888ad6226.1584699455.git.msuchanek@suse.de
This commit is contained in:
Michal Suchanek 2020-03-20 11:20:17 +01:00 committed by Michael Ellerman
parent 0a7601b6ff
commit 6e944aed88
1 changed files with 3 additions and 2 deletions
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5
arch/powerpc/Kconfig
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@ -264,8 +264,9 @@ config PANIC_TIMEOUT
default 180 default 180
config COMPAT config COMPAT
bool bool "Enable support for 32bit binaries"
default y if PPC64 depends on PPC64
default y if !CPU_LITTLE_ENDIAN
select COMPAT_BINFMT_ELF select COMPAT_BINFMT_ELF
select ARCH_WANT_OLD_COMPAT_IPC select ARCH_WANT_OLD_COMPAT_IPC
select COMPAT_OLD_SIGACTION select COMPAT_OLD_SIGACTION