Module Name: src
Committed By: tsutsui
Date: Sat Dec 24 04:59:00 UTC 2011
Modified Files:
src/lib/libc/net: Makefile.inc
Log Message:
Specify "-fno-tree-ter" to getaddrinfo.c and gethnamaddr.c on arm and gcc45
for workaround of a possible optimazation bug.
On my W-ZERO3 and Zaurus, hostname lookup against CNAME by some commands
(ping(8), ftp(1) etc.) fails even though nslookup(8) returns a proper name
against the same CNAME, after NetBSD/arm ports has been switched to
gcc 4.5 since 201110311420Z (i.e 201110310000Z binaries worked but
201111010000Z ones not).
Building getaddrinfo.c and gethnamaddr.c in libc with "-O2 -fno-tree-ter"
(or using objects built by old gcc 4.1) seems to fix this issue.
Accroding to nonaka@, the following gcc bugzilla test case also fails
with -O2 but works with -O2 -fno-tree-ter on NetBSD/zaurus 5.99.57:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48863#c4
but CNAME lookup didn't fail on his environment even without this workaround.
To generate a diff of this commit:
cvs rdiff -u -r1.78 -r1.79 src/lib/libc/net/Makefile.inc
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/lib/libc/net/Makefile.inc
diff -u src/lib/libc/net/Makefile.inc:1.78 src/lib/libc/net/Makefile.inc:1.79
--- src/lib/libc/net/Makefile.inc:1.78 Fri Oct 2 02:45:29 2009
+++ src/lib/libc/net/Makefile.inc Sat Dec 24 04:59:00 2011
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile.inc,v 1.78 2009/10/02 02:45:29 tsarna Exp $
+# $NetBSD: Makefile.inc,v 1.79 2011/12/24 04:59:00 tsutsui Exp $
# @(#)Makefile.inc 8.2 (Berkeley) 9/5/93
# net sources
@@ -41,6 +41,11 @@ nslexer.c: nslexer.l nsparser.h
.include "${ARCHDIR}/net/Makefile.inc"
+.if defined(HAVE_GCC) && ${HAVE_GCC} == "45" && ${MACHINE_CPU} == "arm"
+COPTS.getaddrinfo.c+= -fno-tree-ter
+COPTS.gethnamaddr.c+= -fno-tree-ter
+.endif
+
MAN+= byteorder.3 ethers.3 gethostbyname.3 getifaddrs.3 \
getnetent.3 getprotoent.3 getpeereid.3 \
getservent.3 inet.3 inet_net.3 iso_addr.3 linkaddr.3 \
