build system: -fno-builtin-printf
Benefits are: drops reference to out-of-line putchar(), fixes a few cases of failed string merge. function old new delta i2cdump_main 1488 1502 +14 sha256_process_block64 423 433 +10 sendmail_main 1183 1185 +2 list_table 1114 1116 +2 i2cdetect_main 1235 1237 +2 fdisk_main 2852 2854 +2 builtin_type 119 121 +2 unicode_conv_to_printable2 325 324 -1 scan_recursive 380 378 -2 mkfs_minix_main 2687 2684 -3 buffer_fill_and_print 178 169 -9 putchar 152 - -152 ------------------------------------------------------------------------------ (add/remove: 0/2 grow/shrink: 7/4 up/down: 34/-167) Total: -133 bytes text data bss dec hex filename 937788 932 17676 956396 e97ec busybox_old 937564 932 17676 956172 e970c busybox_unstripped Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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24 changed files with 127 additions and 124 deletions
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@ -375,7 +375,7 @@ int sendmail_main(int argc UNUSED_PARAM, char **argv)
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// N.B. we need to escape the leading dot regardless of
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// whether it is single or not character on the line
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if ('.' == s[0] /*&& '\0' == s[1] */)
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printf(".");
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bb_putchar('.');
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// dump read line
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send_r_n(s);
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free(s);
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