arm64: VDSO support
This patch adds VDSO support for 64-bit applications. The VDSO code is currently used for sys_rt_sigreturn() and optimised gettimeofday() (using the user-accessible generic counter). Signed-off-by: NWill Deacon <will.deacon@arm.com> Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com> Acked-by: NTony Lindgren <tony@atomide.com> Acked-by: NNicolas Pitre <nico@linaro.org> Acked-by: NOlof Johansson <olof@lixom.net> Acked-by: NSantosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: NArnd Bergmann <arnd@arndb.de>
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arch/arm64/include/asm/vdso.h
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arch/arm64/kernel/vdso.c
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arch/arm64/kernel/vdso/.gitignore
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arch/arm64/kernel/vdso/Makefile
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arch/arm64/kernel/vdso/note.S
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arch/arm64/kernel/vdso/vdso.S
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arch/arm64/kernel/vdso/vdso.lds.S
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