/* vi: set sw=4 ts=4: */ | |
/* | |
* Various system configuration helpers. | |
* | |
* Copyright (C) 2014 Bartosz Golaszewski <bartekgola@gmail.com> | |
* | |
* Licensed under GPLv2 or later, see file LICENSE in this source tree. | |
*/ | |
#include "libbb.h" | |
#if !defined(bb_arg_max) | |
unsigned FAST_FUNC bb_arg_max(void) | |
{ | |
long r = sysconf(_SC_ARG_MAX); | |
/* I've seen a version of uclibc which returned -1. | |
* Guard about it, and also avoid insanely large values | |
*/ | |
if ((unsigned long)r > 64*1024*1024) | |
r = 64*1024*1024; | |
return r; | |
} | |
#endif | |
/* Return the number of clock ticks per second. */ | |
unsigned FAST_FUNC bb_clk_tck(void) | |
{ | |
return sysconf(_SC_CLK_TCK); | |
} |