From 6c90c872017773cde70a51432cb28f253451b967 Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Sat, 14 Jan 2006 16:37:15 +0000 Subject: [PATCH] [ARM] 3112/1: old ABI compat: config option to turn it on Patch from Nicolas Pitre Enjoy ! Signed-off-by: Nicolas Pitre Signed-off-by: Russell King --- arch/arm/Kconfig | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index cb66b5745f..006f09218a 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -416,6 +416,23 @@ config AEABI To use this you need GCC version 4.0.0 or later. +config OABI_COMPAT + bool "Allow old ABI binaries to run with this kernel" + depends on AEABI + default y + help + This option preserves the old syscall interface along with the + new (ARM EABI) one. It also provides a compatibility layer to + intercept syscalls that have structure arguments which layout + in memory differs between the legacy ABI and the new ARM EABI + (only for non "thumb" binaries). This option adds a tiny + overhead to all syscalls and produces a slightly larger kernel. + If you know you'll be using only pure EABI user space then you + can say N here. If this option is not selected and you attempt + to execute a legacy ABI binary then the result will be + UNPREDICTABLE (in fact it can be predicted that it won't work + at all). If in doubt say Y. + config ARCH_DISCONTIGMEM_ENABLE bool default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM) -- 2.39.5