[PATCH 16/32] tools/nolibc: use pselect6_time64 if available

From: Thomas Weißschuh
Date: Tue Mar 04 2025 - 02:13:54 EST


riscv32 does not have any of the older select systemcalls.
Use pselect6_time64 instead.
poll() is also used to implement sleep().

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@xxxxxxxxxxxxx>
---
tools/include/nolibc/sys.h | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/tools/include/nolibc/sys.h b/tools/include/nolibc/sys.h
index 8f44c33b121300e80b41c971019484007d050b17..128a11441ba1f95a4331b63ff1cdfb9507d4fb33 100644
--- a/tools/include/nolibc/sys.h
+++ b/tools/include/nolibc/sys.h
@@ -1005,6 +1005,14 @@ int sys_select(int nfds, fd_set *rfds, fd_set *wfds, fd_set *efds, struct timeva
t.tv_nsec = timeout->tv_usec * 1000;
}
return my_syscall6(__NR_pselect6, nfds, rfds, wfds, efds, timeout ? &t : NULL, NULL);
+#elif defined(__NR_pselect6_time64)
+ struct __kernel_timespec t;
+
+ if (timeout) {
+ t.tv_sec = timeout->tv_sec;
+ t.tv_nsec = timeout->tv_usec * 1000;
+ }
+ return my_syscall6(__NR_pselect6_time64, nfds, rfds, wfds, efds, timeout ? &t : NULL, NULL);
#else
return __nolibc_enosys(__func__, nfds, rfds, wfds, efds, timeout);
#endif

--
2.48.1