From 4274e516239b34c5cd9ea2c60c11802e28244c99 Mon Sep 17 00:00:00 2001
From: Denis Vlasenko <vda.linux@googlemail.com>
Date: Mon, 22 Dec 2008 01:01:40 +0000
Subject: docs/defines.txt: document _extern_inline libc/inet/ether_addr.c:
optimize tolower, we ever use it on 0-9a-f libc/inet/ntop.c: optimize
tolower, we ever use it on 0-9a-f with locale support on, code size change
is:
text data bss dec hex filename
- 396 0 24 420 1a4 libc/inet/ether_addr.os
+ 306 0 24 330 14a libc/inet/ether_addr.os
- 1453 0 0 1453 5ad libc/inet/ntop.os
+ 1430 0 0 1430 596 libc/inet/ntop.os
---
docs/defines.txt | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
(limited to 'docs')
diff --git a/docs/defines.txt b/docs/defines.txt
index 677335e2f..2af8f0cae 100644
--- a/docs/defines.txt
+++ b/docs/defines.txt
@@ -40,10 +40,15 @@ __USE_EXTERN_INLINES
out-of-line version of every inlined function in case user program
calls it instead of using an inline.
_EXTERN_INLINE
- Define it to replace "extern __inline" string in inline definitions
+ If not defined by user prior to #include, will be defined to
+ "extern inline" or equivalent. IOW, if user defines it prior
+ #include, it replaces "extern __inline" string in inline definitions
(those enabled by __USE_EXTERN_INLINES) with something else.
A few uclibc .c files use it to create non-inlined functions
by defining it to "".
+__extern_inline
+ Defined to "extern inline", modulo gcc/C standard deviations.
+ Can't be used by user to play tricks as with _EXTERN_INLINE.
_LIBC
UCLIBC_INTERNAL
--
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