From 0217200c88fef4a7045990db6d3498c606506ecc Mon Sep 17 00:00:00 2001 From: Fabrice Fontaine Date: Fri, 27 Aug 2021 16:28:32 +0200 Subject: [PATCH] Fix build on riscv32 riscv32 fails to build because __NR_futex is not defined on this architecture: In file included from thread/qmutex_linux.cpp:45, from thread/qmutex.cpp:804: thread/qfutex_p.h: In function 'int QtLinuxFutex::_q_futex(int*, int, int, quintptr, int*, int)': thread/qfutex_p.h:116:30: error: '__NR_futex' was not declared in this scope; did you mean '_q_futex'? 116 | int result = syscall(__NR_futex, addr, op | FUTEX_PRIVATE_FLAG, val, val2, addr2, val3); | ^~~~~~~~~~ | _q_futex Fixes: QTBUG-96067 Change-Id: Ib6a9bcc496f37e69ac39362cb0a021fccaf311f5 Reviewed-by: Thiago Macieira (cherry picked from commit 035dc537bee26e3b63a211b2835d8560439e161f) --- src/corelib/thread/qfutex_p.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/corelib/thread/qfutex_p.h b/src/corelib/thread/qfutex_p.h index e4bfeda5f86..7228c0d625a 100644 --- a/src/corelib/thread/qfutex_p.h +++ b/src/corelib/thread/qfutex_p.h @@ -81,6 +81,11 @@ QT_END_NAMESPACE // if not defined in linux/futex.h # define FUTEX_PRIVATE_FLAG 128 // added in v2.6.22 +// RISC-V does not supply __NR_futex +# ifndef __NR_futex +# define __NR_futex __NR_futex_time64 +# endif + # if (__has_feature(thread_sanitizer) || defined(__SANITIZE_THREAD__)) && __has_include() # include inline void _q_tsan_acquire(void *addr, void *addr2)