From 5827f6389a227157958d14a687fb29223cb3a03a Mon Sep 17 00:00:00 2001 From: Mingli Yu Date: Wed, 7 Apr 2021 07:48:42 +0000 Subject: [PATCH] xshmfence_futex.h: Define SYS_futex if it does not exist _NR_futex is not defines by newer architectures e.g. riscv32 as they only have 64bit variant of time_t. Glibc defines SYS_futex interface based on __NR_futex, since this is used in applications, such applications start to fail to build for these newer architectures. This patch defines a fallback to alias __NR_futex to __NR_futex_time64 to make SYS_futex keep working. Reference: https://git.openembedded.org/openembedded-core/commit/?id=7a218adf9990f5e18d0b6a33eb34091969f979c7 Upstream-Status: Pending Signed-off-by: Mingli Yu --- src/xshmfence_futex.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/xshmfence_futex.h b/src/xshmfence_futex.h index 673ac0e..a71efa5 100644 --- a/src/xshmfence_futex.h +++ b/src/xshmfence_futex.h @@ -53,6 +53,10 @@ static inline int futex_wait(int32_t *addr, int32_t value) { #include #include +#if !defined(SYS_futex) && defined(SYS_futex_time64) +#define SYS_futex SYS_futex_time64 +#endif + static inline long sys_futex(void *addr1, int op, int val1, struct timespec *timeout, void *addr2, int val3) { return syscall(SYS_futex, addr1, op, val1, timeout, addr2, val3); -- 2.29.2