[src/trunk]: src/lib/libc/misc fix comment about initialization-time calls; o...

[dholland <dholland%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/f4d4fae808ca
branches:  trunk
changeset: 349175:f4d4fae808ca
user:      dholland <dholland%NetBSD.org@localhost>
date:      Sat Nov 26 20:38:20 2016 +0000

description:
fix comment about initialization-time calls; ok joerg

diffstat:

 lib/libc/misc/initfini.c |  12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diffs (33 lines):

diff -r 066e3acd34fc -r f4d4fae808ca lib/libc/misc/initfini.c
--- a/lib/libc/misc/initfini.c  Sat Nov 26 15:03:23 2016 +0000
+++ b/lib/libc/misc/initfini.c  Sat Nov 26 20:38:20 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: initfini.c,v 1.11 2013/08/19 22:14:37 matt Exp $        */
+/*     $NetBSD: initfini.c,v 1.12 2016/11/26 20:38:20 dholland Exp $    */
 
 /*-
  * Copyright (c) 2007 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: initfini.c,v 1.11 2013/08/19 22:14:37 matt Exp $");
+__RCSID("$NetBSD: initfini.c,v 1.12 2016/11/26 20:38:20 dholland Exp $");
 
 #ifdef _LIBC
 #include "namespace.h"
@@ -77,8 +77,12 @@
 struct ps_strings *__ps_strings;
 
 /*
- * _libc_init is called twice.  The first time explicitly by crt0.o
- * (for newer versions) and the second time as indirectly via _init().
+ * _libc_init is called twice.  One call comes explicitly from crt0.o
+ * (for newer versions) and the other is via global constructor handling.
+ *
+ * In static binaries the explicit call is first; in dynamically linked
+ * binaries the global constructors of libc are called from ld.elf_so
+ * before crt0.o is reached.
  */
 void __section(".text.startup")
 _libc_init(void)