Last change
on this file since 3863 was 3621, checked in by Bruno Cornec, 8 years ago |
New 3?3 banch for incorporation of latest busybox 1.25. Changing minor version to handle potential incompatibilities.
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[3621] | 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * Various system configuration helpers.
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| 4 | *
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| 5 | * Copyright (C) 2014 Bartosz Golaszewski <bartekgola@gmail.com>
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| 6 | *
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| 7 | * Licensed under GPLv2 or later, see file LICENSE in this source tree.
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| 8 | */
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| 9 | #include "libbb.h"
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| 10 |
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| 11 | #if !defined(bb_arg_max)
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| 12 | unsigned FAST_FUNC bb_arg_max(void)
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| 13 | {
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| 14 | long r = sysconf(_SC_ARG_MAX);
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| 15 |
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| 16 | /* I've seen a version of uclibc which returned -1.
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| 17 | * Guard about it, and also avoid insanely large values
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| 18 | */
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| 19 | if ((unsigned long)r > 64*1024*1024)
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| 20 | r = 64*1024*1024;
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| 21 |
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| 22 | return r;
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| 23 | }
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| 24 | #endif
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| 25 |
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| 26 | /* Return the number of clock ticks per second. */
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| 27 | unsigned FAST_FUNC bb_clk_tck(void)
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| 28 | {
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| 29 | return sysconf(_SC_CLK_TCK);
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| 30 | }
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