1From d611f78198dee64bb6a05933d200b544e2510b76 Mon Sep 17 00:00:00 2001
2From: Khem Raj <raj.khem@gmail.com>
3Date: Sat, 14 Nov 2020 14:37:13 -0800
4Subject: [PATCH] innobase: Define __NR_futex if it does not exist
5
6__NR_futex is not defines by newer architectures e.g. arc, riscv32 as
7they only have 64bit variant of time_t. Glibc defines SYS_futex interface based
8on
9__NR_futex, since this is used in applications, such applications start
10to fail to build for these newer architectures. This patch defines a
11fallback to alias __NR_futex to __NR_futex_tim64 so SYS_futex keeps
12working
13
14Upstream-Status: Pending
15
16Signed-off-by: Khem Raj <raj.khem@gmail.com>
17---
18 storage/innobase/log/log0sync.cc | 3 +++
19 1 file changed, 3 insertions(+)
20
21diff --git a/storage/innobase/log/log0sync.cc b/storage/innobase/log/log0sync.cc
22index 7799e605..4fab8f74 100644
23--- a/storage/innobase/log/log0sync.cc
24+++ b/storage/innobase/log/log0sync.cc
25@@ -66,6 +66,9 @@ Note that if write operation is very fast, a) or b) can be fine as alternative.
26 #ifdef __linux__
27 #include <linux/futex.h>
28 #include <sys/syscall.h>
29+#if !defined(SYS_futex) && defined(SYS_futex_time64)
30+# define SYS_futex SYS_futex_time64
31+#endif
32 #endif
33
34 #include <atomic>
35--
362.29.2
37
38