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@@ -0,0 +1,37 @@
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+From d611f78198dee64bb6a05933d200b544e2510b76 Mon Sep 17 00:00:00 2001
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+From: Khem Raj <raj.khem@gmail.com>
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+Date: Sat, 14 Nov 2020 14:37:13 -0800
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+Subject: [PATCH] innobase: Define __NR_futex if it does not exist
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+
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+__NR_futex is not defines by newer architectures e.g. arc, riscv32 as
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+they only have 64bit variant of time_t. Glibc defines SYS_futex interface based
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+on
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+__NR_futex, since this is used in applications, such applications start
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+to fail to build for these newer architectures. This patch defines a
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+fallback to alias __NR_futex to __NR_futex_tim64 so SYS_futex keeps
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+working
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+
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+Upstream-Status: Pending
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+
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+Signed-off-by: Khem Raj <raj.khem@gmail.com>
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+---
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+ storage/innobase/log/log0sync.cc | 3 +++
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+ 1 file changed, 3 insertions(+)
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+
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+diff --git a/storage/innobase/log/log0sync.cc b/storage/innobase/log/log0sync.cc
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+index 7799e605..4fab8f74 100644
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+--- a/storage/innobase/log/log0sync.cc
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++++ b/storage/innobase/log/log0sync.cc
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+@@ -66,6 +66,9 @@ Note that if write operation is very fast, a) or b) can be fine as alternative.
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+ #ifdef __linux__
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+ #include <linux/futex.h>
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+ #include <sys/syscall.h>
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++#if !defined(SYS_futex) && defined(SYS_futex_time64)
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++# define SYS_futex SYS_futex_time64
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++#endif
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+ #endif
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+
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+ #include <atomic>
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+--
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+2.29.2
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+
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