Remove syscall wrappers around clock_gettime, closes 12091

12091 "Direct use of __NR_clock_gettime is not time64-safe".

function                                             old     new   delta
runsv_main                                          1698    1712     +14
startservice                                         378     383      +5
get_mono                                              31      25      -6
date_main                                            932     926      -6
gettimeofday_ns                                       17       -     -17
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 2/2 up/down: 19/-29)            Total: -10 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 1 insertions, 10 deletions

diff --git a/libbb/time.c b/libbb/time.c
index b6fcae28b..e66a9cba8 100644
--- a/libbb/time.c
+++ b/libbb/time.c
@@ -253,18 +253,9 @@ char* FAST_FUNC strftime_YYYYMMDDHHMMSS(char *buf, unsigned len, time_t *tp)
 #define CLOCK_MONOTONIC 1
 #endif
 
-/* libc has incredibly messy way of doing this,
- * typically requiring -lrt. We just skip all this mess */
 static void get_mono(struct timespec *ts)
 {
-#if defined(__NR_clock_gettime)
-        if (syscall(__NR_clock_gettime, CLOCK_MONOTONIC, ts))
-#elif __TIMESIZE == 64
-        if (syscall(__NR_clock_gettime64, CLOCK_MONOTONIC, ts))
-#else
-# error "We currently don't support architectures without " \
-        "the __NR_clock_gettime syscall and 32-bit time_t"
-#endif
+        if (clock_gettime(CLOCK_MONOTONIC, ts))
                 bb_simple_error_msg_and_die("clock_gettime(MONOTONIC) failed");
 }
 unsigned long long FAST_FUNC monotonic_ns(void)