From 219b69d72e878094f3ce03a9e70719709a9b4c43 Mon Sep 17 00:00:00 2001 From: Waldemar Brodkorb Date: Wed, 9 Dec 2015 08:05:10 +0100 Subject: libc/stdio: Rework custom streams interface similar to glibc. Save 20 bytes per FILE structure, avoid indirect call for read/write/seek/close operations for normal streams. Additionally, custom streams has fileno = -2 now, like in glibc. bloat-o-meter report (UCLIBC_HAS_GLIBC_CUSTOM_STREAMS=y): function old new delta fopencookie 69 131 +62 ftello64 233 260 +27 fseeko64 298 319 +21 fclose 423 442 +19 .rodata 16696 16708 +12 fileno_unlocked 53 45 -8 __ns_name_pack 859 851 -8 vswscanf 184 144 -40 vdprintf 231 187 -44 vsscanf 210 151 -59 vswprintf 269 201 -68 vsnprintf 249 181 -68 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 5/7 up/down: 141/-295) Total: -154 bytes Signed-off-by: Leonid Lisovskiy Signed-off-by: Waldemar Brodkorb --- libc/stdio/_fopen.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'libc/stdio/_fopen.c') diff --git a/libc/stdio/_fopen.c b/libc/stdio/_fopen.c index 5bc61cf39..be05c48a5 100644 --- a/libc/stdio/_fopen.c +++ b/libc/stdio/_fopen.c @@ -192,8 +192,6 @@ FILE attribute_hidden *_stdio_fopen(intptr_t fname_or_mode, __STDIO_STREAM_INIT_BUFREAD_BUFPOS(stream); #endif - __STDIO_STREAM_RESET_GCS(stream); - #ifdef __UCLIBC_HAS_WCHAR__ stream->__ungot_width[0] = 0; #endif -- cgit v1.2.3