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Subject[PATCHv2 1/4] unicore32-oldabi: add CONFIG_UNICORE32_OLDABI for distinguishing two ABIs
From
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Qin Rui <qinrui@pku.edu.cn>
Tested-by: Guenter Roeck <linux@roeck-us.net>
---
arch/unicore32/Kconfig | 11 +++++++++++
1 file changed, 11 insertions(+)

diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index 0769066..e23100b 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -69,6 +69,17 @@ source "kernel/Kconfig.freezer"

menu "System Type"

+config UNICORE32_OLDABI
+ bool "Allow old ABI binaries to run with this kernel"
+ default y
+ help
+ This option preserves the old syscall interface instead of the +
asm-generic one. It also provides a compatibility layer to
+ intercept syscalls that have structure arguments which layout
+ in memory differs between the asm-generic ABI and this old one. +
+ If in doubt, say Y.
+
config MMU
def_bool y

--
1.9.1




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