From 7df69c3a784ab2cc4770bdb366cf788cdb78099a Mon Sep 17 00:00:00 2001 From: Khem Raj Date: Sun, 15 Nov 2020 12:30:41 -0800 Subject: [PATCH] os/linux: Fix build when __NR_futex is not available Newer architectures like riscv32 do not define __NR_futex intentionally since it uses 64bit time_t from very beginning, therefore only caters to futex_time64 syscall Upstream-Status: Pending Signed-off-by: Khem Raj --- lib/direct/os/linux/glibc/system.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/lib/direct/os/linux/glibc/system.c b/lib/direct/os/linux/glibc/system.c index 373a711..d027a70 100644 --- a/lib/direct/os/linux/glibc/system.c +++ b/lib/direct/os/linux/glibc/system.c @@ -36,6 +36,7 @@ #include #include +#include #include #include @@ -46,6 +47,10 @@ #include #include +#if !defined(SYS_futex) && defined(SYS_futex_time64) +# define SYS_futex SYS_futex_time64 +#endif + D_LOG_DOMAIN( Direct_Futex, "Direct/Futex", "Direct Futex" ); D_LOG_DOMAIN( Direct_Trap, "Direct/Trap", "Direct Trap" ); @@ -239,10 +244,9 @@ direct_futex( int *uaddr, int op, int val, const struct timespec *timeout, int * } #endif - ret = syscall( __NR_futex, uaddr, op, val, timeout, uaddr2, val3 ); + ret = syscall( SYS_futex, uaddr, op, val, timeout, uaddr2, val3 ); if (ret < 0) return errno2result( errno ); return DR_OK; } - -- 2.29.2