| From 859bfc342d1db9b61c43f30d9aa27cea35ca7599 Mon Sep 17 00:00:00 2001 |
| From: Khem Raj <raj.khem@gmail.com> |
| Date: Fri, 16 Oct 2020 11:03:47 -0700 |
| Subject: [PATCH] futex.h: Define __NR_futex if it does not exist |
| |
| __NR_futex is not defines by newer architectures e.g. arc, 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_tim64 so SYS_futex keeps |
| working |
| |
| Upstream-Status: Pending |
| Signed-off-by: Khem Raj <raj.khem@gmail.com> |
| |
| --- |
| src/util/futex.h | 4 ++++ |
| 1 file changed, 4 insertions(+) |
| |
| diff --git a/src/util/futex.h b/src/util/futex.h |
| index 2a2a00c..92fc123 100644 |
| --- a/src/util/futex.h |
| +++ b/src/util/futex.h |
| @@ -38,6 +38,10 @@ |
| #define SYS_futex SYS_futex_time64 |
| #endif |
| |
| +#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, const struct timespec *timeout, void *addr2, int val3) |
| { |
| return syscall(SYS_futex, addr1, op, val1, timeout, addr2, val3); |