From 42b926d303e571d5f9a4e97ffdb8e05d1eabae66 Mon Sep 17 00:00:00 2001 From: Adhemerval Zanella Date: Mon, 11 Nov 2019 13:28:37 -0300 Subject: Fix clock_nanosleep when interrupted by a signal This patch fixes the time64 support (added by 2e44b10b42d) where it misses the remaining argument updated if __NR_clock_nanosleep returns EINTR. Checked on i686-linux-gnu on 4.15 kernel (no time64 support) and on 5.3 kernel (with time64 support). Reviewed-by: Alistair Francis --- sysdeps/unix/sysv/linux/clock_nanosleep.c | 16 +++++++--------- 1 file changed, 7 insertions(+), 9 deletions(-) (limited to 'sysdeps/unix/sysv/linux') diff --git a/sysdeps/unix/sysv/linux/clock_nanosleep.c b/sysdeps/unix/sysv/linux/clock_nanosleep.c index 60c61ee277..fc47c58ee7 100644 --- a/sysdeps/unix/sysv/linux/clock_nanosleep.c +++ b/sysdeps/unix/sysv/linux/clock_nanosleep.c @@ -52,13 +52,10 @@ __clock_nanosleep_time64 (clockid_t clock_id, int flags, const struct __timespec r = INTERNAL_SYSCALL_CANCEL (clock_nanosleep_time64, err, clock_id, flags, req, rem); - if (r == 0 || errno != ENOSYS) - { - return (INTERNAL_SYSCALL_ERROR_P (r, err) - ? INTERNAL_SYSCALL_ERRNO (r, err) : 0); - } + if (r != -ENOSYS) + return (INTERNAL_SYSCALL_ERROR_P (r, err) + ? INTERNAL_SYSCALL_ERRNO (r, err) : 0); # endif /* __NR_clock_nanosleep_time64 */ - struct timespec ts32, tr32; if (! in_time_t_range (req->tv_sec)) { @@ -66,11 +63,12 @@ __clock_nanosleep_time64 (clockid_t clock_id, int flags, const struct __timespec return -1; } - ts32 = valid_timespec64_to_timespec (*req); + struct timespec tr32; + struct timespec ts32 = valid_timespec64_to_timespec (*req); r = INTERNAL_SYSCALL_CANCEL (clock_nanosleep, err, clock_id, flags, &ts32, &tr32); - if (r == 0 && rem != NULL) + if (r == -EINTR && rem != NULL && (flags & TIMER_ABSTIME) == 0) *rem = valid_timespec_to_timespec64 (tr32); #endif /* __ASSUME_TIME64_SYSCALLS */ @@ -89,7 +87,7 @@ __clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *req, treq64 = valid_timespec_to_timespec64 (*req); r = __clock_nanosleep_time64 (clock_id, flags, &treq64, &trem64); - if (r == 0 && rem != NULL) + if (r == EINTR && rem != NULL && (flags & TIMER_ABSTIME) == 0) *rem = valid_timespec64_to_timespec (trem64); return r; -- cgit 1.4.1