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ARM: 8342/1: VDSO: depend on CPU_V7 

When targeting ARMv3 (e.g. rpc) and enabling CONFIG_VDSO we get:

arch/arm/vdso/datapage.S:13: Error: selected processor does not
support ARM mode `bx lr'

One fix considered was to use 'ldr pc,lr' for such configurations, but
since the VDSO is unlikely to be useful for pre-v7 hardware, just make
it depend on CONFIG_CPU_V7.

Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Nathan Lynch <nathan_lynch@mentor.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
hifive-unleashed-5.1
Nathan Lynch 2015-04-17 21:51:38 +01:00 committed by Russell King
parent e5b61deb3a
commit 5d38000b3c
1 changed files with 1 additions and 1 deletions
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2
arch/arm/mm/Kconfig
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@ -827,7 +827,7 @@ config KUSER_HELPERS
config VDSO
bool "Enable VDSO for acceleration of some system calls"
depends on AEABI && MMU
depends on AEABI && MMU && CPU_V7
default y if ARM_ARCH_TIMER
select GENERIC_TIME_VSYSCALL
help