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e52da5570e
Use it in libiproute: get rid of one static string buffer. function old new delta auto_string - 51 +51 ll_index_to_name 10 49 +39 buffer_fill_and_print 169 178 +9 scan_recursive 378 380 +2 decode_one_format 732 734 +2 cmdputs 334 332 -2 static.cur_saved 4 1 -3 static.nbuf 16 - -16 printable_string 94 57 -37 ll_idx_n2a 53 - -53 ------------------------------------------------------------------------------ (add/remove: 2/2 grow/shrink: 4/3 up/down: 103/-111) Total: -8 bytes text data bss dec hex filename 939880 992 17496 958368 e9fa0 busybox_old 939880 992 17480 958352 e9f90 busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
24 lines
435 B
C
24 lines
435 B
C
/* vi: set sw=4 ts=4: */
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/*
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* Utility routines.
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*
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* Copyright (C) 2015 Denys Vlasenko
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*
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* Licensed under GPLv2, see file LICENSE in this source tree.
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*/
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//kbuild:lib-y += auto_string.o
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#include "libbb.h"
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char* FAST_FUNC auto_string(char *str)
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{
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static char *saved[4];
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static uint8_t cur_saved; /* = 0 */
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free(saved[cur_saved]);
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saved[cur_saved] = str;
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cur_saved = (cur_saved + 1) & (ARRAY_SIZE(saved)-1);
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return str;
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}
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