From 166811dfcfc61e7646275aa993d7d7f4b02d1f49 Mon Sep 17 00:00:00 2001 From: Khem Raj Date: Sat, 3 Apr 2021 12:40:14 -0700 Subject: [PATCH] Use SYS_futex for syscall glibc defines SYS_futex and on newer 32bit CPUs like RISCV-32, arc there is no 32bit time_t therefore define SYS_futex in terms of SYS_futex_time64 Upstream-Status: Pending Signed-off-by: Khem Raj --- storage/innobase/sync/srw_lock.cc | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/storage/innobase/sync/srw_lock.cc b/storage/innobase/sync/srw_lock.cc index 28b586de..3ee71142 100644 --- a/storage/innobase/sync/srw_lock.cc +++ b/storage/innobase/sync/srw_lock.cc @@ -226,6 +226,12 @@ void ssux_lock_impl::wake() noexcept { WakeByAddressSingle(&readers); # ifdef __linux__ # include # include +/** Newer 32bit CPUs eg. RISCV-32 are defaulting to 64bit time_t from get go and + therefore do not define __NR_futex */ +# if !defined(SYS_futex) && defined(SYS_futex_time64) +# define SYS_futex SYS_futex_time64 +# endif + # define SRW_FUTEX(a,op,n) \ syscall(SYS_futex, a, FUTEX_ ## op ## _PRIVATE, n, nullptr, nullptr, 0) # elif defined __OpenBSD__