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Message-Id: <20251122-nolibc-uapi-types-v2-5-b814a43654f5@weissschuh.net>
Date: Sat, 22 Nov 2025 17:59:11 +0100
From: Thomas Weißschuh <linux@...ssschuh.net>
To: Willy Tarreau <w@....eu>, Shuah Khan <shuah@...nel.org>
Cc: Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org,
linux-kselftest@...r.kernel.org,
Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH v2 05/13] tools/nolibc: prefer explicit 64-bit time-related
system calls
Make sure to always use the 64-bit safe system calls
in preparation for 64-bit time_t on 32-bit architectures.
Also prevent issues on kernels which disable CONFIG_COMPAT_32BIT_TIME
and therefore don't provide the 32-bit system calls anymore.
Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
tools/include/nolibc/poll.h | 10 +++++-----
tools/include/nolibc/sys/select.h | 10 +++++-----
tools/include/nolibc/sys/timerfd.h | 12 ++++++------
tools/include/nolibc/time.h | 36 ++++++++++++++++++------------------
4 files changed, 34 insertions(+), 34 deletions(-)
diff --git a/tools/include/nolibc/poll.h b/tools/include/nolibc/poll.h
index 5b4fa339fbb5..e854c94647b1 100644
--- a/tools/include/nolibc/poll.h
+++ b/tools/include/nolibc/poll.h
@@ -23,22 +23,22 @@
static __attribute__((unused))
int sys_poll(struct pollfd *fds, int nfds, int timeout)
{
-#if defined(__NR_ppoll)
- struct __kernel_old_timespec t;
+#if defined(__NR_ppoll_time64)
+ struct __kernel_timespec t;
if (timeout >= 0) {
t.tv_sec = timeout / 1000;
t.tv_nsec = (timeout % 1000) * 1000000;
}
- return my_syscall5(__NR_ppoll, fds, nfds, (timeout >= 0) ? &t : NULL, NULL, 0);
+ return my_syscall5(__NR_ppoll_time64, fds, nfds, (timeout >= 0) ? &t : NULL, NULL, 0);
#else
- struct __kernel_timespec t;
+ struct __kernel_old_timespec t;
if (timeout >= 0) {
t.tv_sec = timeout / 1000;
t.tv_nsec = (timeout % 1000) * 1000000;
}
- return my_syscall5(__NR_ppoll_time64, fds, nfds, (timeout >= 0) ? &t : NULL, NULL, 0);
+ return my_syscall5(__NR_ppoll, fds, nfds, (timeout >= 0) ? &t : NULL, NULL, 0);
#endif
}
diff --git a/tools/include/nolibc/sys/select.h b/tools/include/nolibc/sys/select.h
index 50b77dace7ef..f8870ad49687 100644
--- a/tools/include/nolibc/sys/select.h
+++ b/tools/include/nolibc/sys/select.h
@@ -63,22 +63,22 @@ typedef struct {
static __attribute__((unused))
int sys_select(int nfds, fd_set *rfds, fd_set *wfds, fd_set *efds, struct timeval *timeout)
{
-#if defined(__NR_pselect6)
- struct __kernel_old_timespec t;
+#if 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, nfds, rfds, wfds, efds, timeout ? &t : NULL, NULL);
+ return my_syscall6(__NR_pselect6_time64, nfds, rfds, wfds, efds, timeout ? &t : NULL, NULL);
#else
- struct __kernel_timespec t;
+ struct __kernel_old_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);
+ return my_syscall6(__NR_pselect6, nfds, rfds, wfds, efds, timeout ? &t : NULL, NULL);
#endif
}
diff --git a/tools/include/nolibc/sys/timerfd.h b/tools/include/nolibc/sys/timerfd.h
index 5dd61030c991..66f779553d31 100644
--- a/tools/include/nolibc/sys/timerfd.h
+++ b/tools/include/nolibc/sys/timerfd.h
@@ -32,9 +32,7 @@ int timerfd_create(int clockid, int flags)
static __attribute__((unused))
int sys_timerfd_gettime(int fd, struct itimerspec *curr_value)
{
-#if defined(__NR_timerfd_gettime)
- return my_syscall2(__NR_timerfd_gettime, fd, curr_value);
-#else
+#if defined(__NR_timerfd_gettime64)
struct __kernel_itimerspec kcurr_value;
int ret;
@@ -42,6 +40,8 @@ int sys_timerfd_gettime(int fd, struct itimerspec *curr_value)
__nolibc_timespec_kernel_to_user(&kcurr_value.it_interval, &curr_value->it_interval);
__nolibc_timespec_kernel_to_user(&kcurr_value.it_value, &curr_value->it_value);
return ret;
+#else
+ return my_syscall2(__NR_timerfd_gettime, fd, curr_value);
#endif
}
@@ -56,9 +56,7 @@ static __attribute__((unused))
int sys_timerfd_settime(int fd, int flags,
const struct itimerspec *new_value, struct itimerspec *old_value)
{
-#if defined(__NR_timerfd_settime)
- return my_syscall4(__NR_timerfd_settime, fd, flags, new_value, old_value);
-#else
+#if defined(__NR_timerfd_settime64)
struct __kernel_itimerspec knew_value, kold_value;
int ret;
@@ -70,6 +68,8 @@ int sys_timerfd_settime(int fd, int flags,
__nolibc_timespec_kernel_to_user(&kold_value.it_value, &old_value->it_value);
}
return ret;
+#else
+ return my_syscall4(__NR_timerfd_settime, fd, flags, new_value, old_value);
#endif
}
diff --git a/tools/include/nolibc/time.h b/tools/include/nolibc/time.h
index 48e78f8becf9..45df9b09d7b6 100644
--- a/tools/include/nolibc/time.h
+++ b/tools/include/nolibc/time.h
@@ -43,9 +43,7 @@ void __nolibc_timespec_kernel_to_user(const struct __kernel_timespec *kts, struc
static __attribute__((unused))
int sys_clock_getres(clockid_t clockid, struct timespec *res)
{
-#if defined(__NR_clock_getres)
- return my_syscall2(__NR_clock_getres, clockid, res);
-#else
+#if defined(__NR_clock_getres_time64)
struct __kernel_timespec kres;
int ret;
@@ -53,6 +51,8 @@ int sys_clock_getres(clockid_t clockid, struct timespec *res)
if (res)
__nolibc_timespec_kernel_to_user(&kres, res);
return ret;
+#else
+ return my_syscall2(__NR_clock_getres, clockid, res);
#endif
}
@@ -65,9 +65,7 @@ int clock_getres(clockid_t clockid, struct timespec *res)
static __attribute__((unused))
int sys_clock_gettime(clockid_t clockid, struct timespec *tp)
{
-#if defined(__NR_clock_gettime)
- return my_syscall2(__NR_clock_gettime, clockid, tp);
-#else
+#if defined(__NR_clock_gettime64)
struct __kernel_timespec ktp;
int ret;
@@ -75,6 +73,8 @@ int sys_clock_gettime(clockid_t clockid, struct timespec *tp)
if (tp)
__nolibc_timespec_kernel_to_user(&ktp, tp);
return ret;
+#else
+ return my_syscall2(__NR_clock_gettime, clockid, tp);
#endif
}
@@ -87,13 +87,13 @@ int clock_gettime(clockid_t clockid, struct timespec *tp)
static __attribute__((unused))
int sys_clock_settime(clockid_t clockid, struct timespec *tp)
{
-#if defined(__NR_clock_settime)
- return my_syscall2(__NR_clock_settime, clockid, tp);
-#else
+#if defined(__NR_clock_settime64)
struct __kernel_timespec ktp;
__nolibc_timespec_user_to_kernel(tp, &ktp);
return my_syscall2(__NR_clock_settime64, clockid, &ktp);
+#else
+ return my_syscall2(__NR_clock_settime, clockid, tp);
#endif
}
@@ -107,9 +107,7 @@ static __attribute__((unused))
int sys_clock_nanosleep(clockid_t clockid, int flags, const struct timespec *rqtp,
struct timespec *rmtp)
{
-#if defined(__NR_clock_nanosleep)
- return my_syscall4(__NR_clock_nanosleep, clockid, flags, rqtp, rmtp);
-#else
+#if defined(__NR_clock_nanosleep_time64)
struct __kernel_timespec krqtp, krmtp;
int ret;
@@ -118,6 +116,8 @@ int sys_clock_nanosleep(clockid_t clockid, int flags, const struct timespec *rqt
if (rmtp)
__nolibc_timespec_kernel_to_user(&krmtp, rmtp);
return ret;
+#else
+ return my_syscall4(__NR_clock_nanosleep, clockid, flags, rqtp, rmtp);
#endif
}
@@ -189,9 +189,7 @@ int timer_delete(timer_t timerid)
static __attribute__((unused))
int sys_timer_gettime(timer_t timerid, struct itimerspec *curr_value)
{
-#if defined(__NR_timer_gettime)
- return my_syscall2(__NR_timer_gettime, timerid, curr_value);
-#else
+#if defined(__NR_timer_gettime64)
struct __kernel_itimerspec kcurr_value;
int ret;
@@ -199,6 +197,8 @@ int sys_timer_gettime(timer_t timerid, struct itimerspec *curr_value)
__nolibc_timespec_kernel_to_user(&kcurr_value.it_interval, &curr_value->it_interval);
__nolibc_timespec_kernel_to_user(&kcurr_value.it_value, &curr_value->it_value);
return ret;
+#else
+ return my_syscall2(__NR_timer_gettime, timerid, curr_value);
#endif
}
@@ -212,9 +212,7 @@ static __attribute__((unused))
int sys_timer_settime(timer_t timerid, int flags,
const struct itimerspec *new_value, struct itimerspec *old_value)
{
-#if defined(__NR_timer_settime)
- return my_syscall4(__NR_timer_settime, timerid, flags, new_value, old_value);
-#else
+#if defined(__NR_timer_settime64)
struct __kernel_itimerspec knew_value, kold_value;
int ret;
@@ -226,6 +224,8 @@ int sys_timer_settime(timer_t timerid, int flags,
__nolibc_timespec_kernel_to_user(&kold_value.it_value, &old_value->it_value);
}
return ret;
+#else
+ return my_syscall4(__NR_timer_settime, timerid, flags, new_value, old_value);
#endif
}
--
2.52.0
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