diff options
Diffstat (limited to 'libc/unistd/sysconf.c')
| -rw-r--r-- | libc/unistd/sysconf.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/libc/unistd/sysconf.c b/libc/unistd/sysconf.c index 87206648e..b3eb12021 100644 --- a/libc/unistd/sysconf.c +++ b/libc/unistd/sysconf.c @@ -33,6 +33,9 @@ #ifdef __UCLIBC_HAS_REGEX__ #include <regex.h> #endif +#ifdef __UCLIBC_HAS_THREADS_NATIVE__ +#include <sysdep.h> +#endif #ifdef HAVE_LINUX_CPUMASK_H # include <linux/cpumask.h> @@ -881,13 +884,32 @@ long int sysconf(int name) #endif case _SC_MONOTONIC_CLOCK: -#if defined __UCLIBC_HAS_REALTIME__ && defined __NR_clock_getres - /* Check using the clock_getres system call. */ +#ifdef __NR_clock_getres + /* Check using the clock_getres system call. */ +# ifdef __UCLIBC_HAS_THREADS_NATIVE__ + { + struct timespec ts; + INTERNAL_SYSCALL_DECL (err); + int r; + r = INTERNAL_SYSCALL (clock_getres, err, 2, CLOCK_MONOTONIC, &ts); + return INTERNAL_SYSCALL_ERROR_P (r, err) ? -1 : _POSIX_VERSION; + } +# else if (clock_getres(CLOCK_MONOTONIC, NULL) >= 0) return _POSIX_VERSION; + + RETURN_NEG_1; +# endif #endif +#ifdef __UCLIBC_HAS_THREADS_NATIVE__ + case _SC_THREAD_CPUTIME: +# if _POSIX_THREAD_CPUTIME > 0 + return _POSIX_THREAD_CPUTIME; +# else RETURN_NEG_1; +# endif +#endif } } libc_hidden_def(sysconf) |