From e52da5570eb93d6cb2950e55c48bd22edb5a9f18 Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Fri, 9 Oct 2015 17:59:56 +0200 Subject: libbb: auto_string() for efficient handling of temporary malloced stirngs 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 --- include/libbb.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/libbb.h b/include/libbb.h index 2f24ecbc3..a8ceb449c 100644 --- a/include/libbb.h +++ b/include/libbb.h @@ -692,6 +692,7 @@ int bb_putchar(int ch) FAST_FUNC; /* Note: does not use stdio, writes to fd 2 directly */ int bb_putchar_stderr(char ch) FAST_FUNC; char *xasprintf(const char *format, ...) __attribute__ ((format(printf, 1, 2))) FAST_FUNC RETURNS_MALLOC; +char *auto_string(char *str) FAST_FUNC; // gcc-4.1.1 still isn't good enough at optimizing it // (+200 bytes compared to macro) //static ALWAYS_INLINE -- cgit v1.2.3