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2 commits

Author SHA1 Message Date
Guo Ren
87f3248cdb csky: Reconstruct VDSO framework 
Reconstruct vdso framework to support future vsyscall,
vgettimeofday features. These are very important features to reduce
system calls into the kernel for performance improvement.

The patch is reference RISC-V's

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Cc: Palmer Dabbelt <palmerdabbelt@google.com>
 2021-01-12 09:52:41 +08:00
Guo Ren
dd3ef10ea2 csky: VDSO and rt_sigreturn 
This patch adds files related to VDSO and our VDSO only support
rt_sigreturn.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
 2018-10-26 00:54:22 +08:00