From e6a2f4cc5a47d3022bdf5ca2cacbaa5a8c5baf7a Mon Sep 17 00:00:00 2001 From: Denys Vlasenko Date: Thu, 21 Apr 2016 16:26:30 +0200 Subject: libbb: make bb_common_bufsiz1 1 kbyte, add capability to use bss tail for it The config item is FEATURE_USE_BSS_TAIL. When it is off (default): function old new delta read_config 210 228 +18 doCommands 2279 2294 +15 ipneigh_list_or_flush 763 772 +9 ipaddr_list_or_flush 1256 1261 +5 display_process_list 1301 1306 +5 conspy_main 1378 1383 +5 do_lzo_compress 352 355 +3 do_lzo_decompress 565 567 +2 push 46 44 -2 inetd_main 2136 2134 -2 uevent_main 421 418 -3 addLines 97 92 -5 bb_common_bufsiz1 8193 1024 -7169 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 8/5 up/down: 62/-7181) Total: -7119 bytes text data bss dec hex filename 829850 4086 9080 843016 cdd08 busybox_old 829901 4086 1904 835891 cc133 busybox_unstripped FEATURE_USE_BSS_TAIL=y: read_config 210 228 +18 doCommands 2279 2294 +15 ipneigh_list_or_flush 763 772 +9 ipaddr_list_or_flush 1256 1261 +5 display_process_list 1301 1306 +5 conspy_main 1378 1383 +5 do_lzo_compress 352 355 +3 do_lzo_decompress 565 567 +2 inetd_main 2136 2134 -2 bb_common_bufsiz1 8193 - -8193 ------------------------------------------------------------------------------ (add/remove: 0/1 grow/shrink: 8/1 up/down: 62/-8195) Total: -8133 bytes text data bss dec hex filename 829850 4086 9080 843016 cdd08 busybox_old 829911 4086 880 834877 cbd3d busybox_unstripped FIXME: setup_common_bufsiz() calls are missing. Signed-off-by: Denys Vlasenko --- coreutils/cksum.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'coreutils/cksum.c') diff --git a/coreutils/cksum.c b/coreutils/cksum.c index ac0b0c319..d8351e7c6 100644 --- a/coreutils/cksum.c +++ b/coreutils/cksum.c @@ -13,6 +13,7 @@ //usage: "Calculate the CRC32 checksums of FILES" #include "libbb.h" +#include "common_bufsiz.h" /* This is a NOEXEC applet. Be very careful! */ @@ -42,8 +43,9 @@ int cksum_main(int argc UNUSED_PARAM, char **argv) crc = 0; length = 0; -#define read_buf bb_common_bufsiz1 - while ((bytes_read = safe_read(fd, read_buf, sizeof(read_buf))) > 0) { +#define read_buf bb_common_bufsiz1 +#define sizeof_read_buf COMMON_BUFSIZE + while ((bytes_read = safe_read(fd, read_buf, sizeof_read_buf)) > 0) { length += bytes_read; crc = crc32_block_endian1(crc, read_buf, bytes_read, crc32_table); } -- cgit v1.2.3