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/vdprintf.c | 9 --------- 1 file changed, 9 deletions(-) (limited to 'libc/stdio/vdprintf.c') diff --git a/libc/stdio/vdprintf.c b/libc/stdio/vdprintf.c index 457018bcf..46b8dfe39 100644 --- a/libc/stdio/vdprintf.c +++ b/libc/stdio/vdprintf.c @@ -26,15 +26,6 @@ int vdprintf(int filedes, const char * __restrict format, va_list arg) __STDIO_STREAM_INIT_BUFREAD_BUFPOS(&f); #endif -/* __STDIO_STREAM_RESET_GCS(&f); */ -#ifdef __UCLIBC_HAS_GLIBC_CUSTOM_STREAMS__ - f.__cookie = &(f.__filedes); - f.__gcs.read = NULL; - f.__gcs.write = _cs_write; - f.__gcs.seek = NULL; - f.__gcs.close = NULL; -#endif - f.__filedes = filedes; f.__modeflags = (__FLAG_NARROW|__FLAG_WRITEONLY|__FLAG_WRITING); -- cgit v1.2.3