1From 5827f6389a227157958d14a687fb29223cb3a03a Mon Sep 17 00:00:00 2001 2From: Mingli Yu <mingli.yu@windriver.com> 3Date: Wed, 7 Apr 2021 07:48:42 +0000 4Subject: [PATCH] xshmfence_futex.h: Define SYS_futex if it does not exist 5 6_NR_futex is not defines by newer architectures e.g. riscv32 as 7they only have 64bit variant of time_t. Glibc defines SYS_futex 8interface based on __NR_futex, since this is used in applications, 9such applications start to fail to build for these newer architectures. 10This patch defines a fallback to alias __NR_futex to __NR_futex_time64 11to make SYS_futex keep working. 12 13Reference: https://git.openembedded.org/openembedded-core/commit/?id=7a218adf9990f5e18d0b6a33eb34091969f979c7 14 15Upstream-Status: Pending 16 17Signed-off-by: Mingli Yu <mingli.yu@windriver.com> 18--- 19 src/xshmfence_futex.h | 4 ++++ 20 1 file changed, 4 insertions(+) 21 22diff --git a/src/xshmfence_futex.h b/src/xshmfence_futex.h 23index 673ac0e..a71efa5 100644 24--- a/src/xshmfence_futex.h 25+++ b/src/xshmfence_futex.h 26@@ -53,6 +53,10 @@ static inline int futex_wait(int32_t *addr, int32_t value) { 27 #include <sys/time.h> 28 #include <sys/syscall.h> 29 30+#if !defined(SYS_futex) && defined(SYS_futex_time64) 31+#define SYS_futex SYS_futex_time64 32+#endif 33+ 34 static inline long sys_futex(void *addr1, int op, int val1, struct timespec *timeout, void *addr2, int val3) 35 { 36 return syscall(SYS_futex, addr1, op, val1, timeout, addr2, val3); 37-- 382.29.2 39 40