libbb: use a wrapper around sysconf(_SC_CLK_TCK) to save a few bytes

function                                             old     new   delta
bb_sc_clk_tck                                          -      10     +10
timescmd                                             118     113      -5
print_route                                         1763    1758      -5
mpstat_main                                         1288    1283      -5
iostat_main                                         1947    1942      -5
INET_setroute                                        879     871      -8
------------------------------------------------------------------------------
(add/remove: 1/0 grow/shrink: 0/5 up/down: 10/-28)            Total: -18 bytes
Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

2 files changed, 2 insertions, 13 deletions

diff --git a/procps/iostat.c b/procps/iostat.c
index 978d23430..8d272c87c 100644
--- a/procps/iostat.c
+++ b/procps/iostat.c
@@ -109,11 +109,6 @@ enum {
         OPT_m = 1 << 5,
 };
 
-static ALWAYS_INLINE unsigned get_user_hz(void)
-{
-        return sysconf(_SC_CLK_TCK);
-}
-
 static ALWAYS_INLINE int this_is_smp(void)
 {
         return (G.total_cpus > 1);
@@ -414,7 +409,7 @@ int iostat_main(int argc UNUSED_PARAM, char **argv)
         memset(&stats_data, 0, sizeof(stats_data));
 
         /* Get number of clock ticks per sec */
-        G.clk_tck = get_user_hz();
+        G.clk_tck = bb_clk_tck();
 
         /* Determine number of CPUs */
         G.total_cpus = get_cpu_count();
diff --git a/procps/mpstat.c b/procps/mpstat.c
index aa5a5c73f..c628d6215 100644
--- a/procps/mpstat.c
+++ b/procps/mpstat.c
@@ -775,12 +775,6 @@ static void main_loop(void)
 
 /* Initialization */
 
-/* Get number of clock ticks per sec */
-static ALWAYS_INLINE unsigned get_hz(void)
-{
-        return sysconf(_SC_CLK_TCK);
-}
-
 static void alloc_struct(int cpus)
 {
         int i;
@@ -873,7 +867,7 @@ int mpstat_main(int UNUSED_PARAM argc, char **argv)
         G.cpu_nr = get_cpu_count();
 
         /* Get number of clock ticks per sec */
-        G.hz = get_hz();
+        G.hz = bb_clk_tck();
 
         /* Calculate number of interrupts per processor */
         G.irqcpu_nr = get_irqcpu_nr(PROCFS_INTERRUPTS, NR_IRQS) + NR_IRQCPU_PREALLOC;