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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-07-10 09:54:35 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-08-24 15:04:29 -0300 |
| commit | 55399535c147d8a0e109c24435628aa6213480fc (patch) | |
| tree | 084be0685b2c68dd2951660f72bbf924bc79c405 /sysdeps/unix/sysv/linux | |
| parent | d9310f33fcc26d87e5bb50d9311a138455b32602 (diff) | |
| download | glibc-55399535c147d8a0e109c24435628aa6213480fc.tar.gz glibc-55399535c147d8a0e109c24435628aa6213480fc.tar.xz glibc-55399535c147d8a0e109c24435628aa6213480fc.zip | |
linux: Simplify clock_nanosleep
With arch-syscall.h it can now assumes the existance of either __NR_clock_nanosleep or __NR_clock_nanosleep_time64. The 32-bit time_t support is now only build for !__ASSUME_TIME64_SYSCALLS. Checked on x86_64-linux-gnu and i686-linux-gnu (on 5.4 and on 4.15 kernel). Reviewed-by: Lukasz Majewski <lukma@denx.de>
Diffstat (limited to 'sysdeps/unix/sysv/linux')
| -rw-r--r-- | sysdeps/unix/sysv/linux/clock_nanosleep.c | 33 |
1 files changed, 11 insertions, 22 deletions
diff --git a/sysdeps/unix/sysv/linux/clock_nanosleep.c b/sysdeps/unix/sysv/linux/clock_nanosleep.c index cc7a09569d..6ad3321435 100644 --- a/sysdeps/unix/sysv/linux/clock_nanosleep.c +++ b/sysdeps/unix/sysv/linux/clock_nanosleep.c @@ -30,8 +30,6 @@ int __clock_nanosleep_time64 (clockid_t clock_id, int flags, const struct __timespec64 *req, struct __timespec64 *rem) { - int r; - if (clock_id == CLOCK_THREAD_CPUTIME_ID) return EINVAL; if (clock_id == CLOCK_PROCESS_CPUTIME_ID) @@ -39,22 +37,15 @@ __clock_nanosleep_time64 (clockid_t clock_id, int flags, const struct __timespec /* If the call is interrupted by a signal handler or encounters an error, it returns a positive value similar to errno. */ -#ifdef __ASSUME_TIME64_SYSCALLS -# ifndef __NR_clock_nanosleep_time64 -# define __NR_clock_nanosleep_time64 __NR_clock_nanosleep -# endif - r = INTERNAL_SYSCALL_CANCEL (clock_nanosleep_time64, clock_id, - flags, req, rem); -#else -# ifdef __NR_clock_nanosleep_time64 - r = INTERNAL_SYSCALL_CANCEL (clock_nanosleep_time64, clock_id, - flags, req, rem); - - if (! INTERNAL_SYSCALL_ERROR_P (r)) - return 0; - if (INTERNAL_SYSCALL_ERRNO (r) != ENOSYS) - return INTERNAL_SYSCALL_ERRNO (r); -# endif /* __NR_clock_nanosleep_time64 */ +#ifndef __NR_clock_nanosleep_time64 +# define __NR_clock_nanosleep_time64 __NR_clock_nanosleep +#endif + int r = INTERNAL_SYSCALL_CANCEL (clock_nanosleep_time64, clock_id, + flags, req, rem); + +#ifndef __ASSUME_TIME64_SYSCALLS + if (r == 0 || r != -ENOSYS) + return -r; if (! in_time_t_range (req->tv_sec)) { @@ -68,14 +59,12 @@ __clock_nanosleep_time64 (clockid_t clock_id, int flags, const struct __timespec &ts32, &tr32); if (INTERNAL_SYSCALL_ERROR_P (r)) { - if (INTERNAL_SYSCALL_ERRNO (r) == EINTR && rem != NULL - && (flags & TIMER_ABSTIME) == 0) + if (r == -EINTR && rem != NULL && (flags & TIMER_ABSTIME) == 0) *rem = valid_timespec_to_timespec64 (tr32); } #endif /* __ASSUME_TIME64_SYSCALLS */ - return (INTERNAL_SYSCALL_ERROR_P (r) - ? INTERNAL_SYSCALL_ERRNO (r) : 0); + return -r; } #if __TIMESIZE != 64 |