components/python/python27/patches/11-symbolic.patch
author Shawn Walker <shawn.walker@oracle.com>
Tue, 20 Dec 2011 17:19:09 -0800
changeset 634 bd9c94f9f6e0
permissions -rw-r--r--
6771457 explore compiler performance improvements for python
The use of -Bsymbolic here is not required for a profile-guided build, but
provides noticeable performance improvements for Python applications.  This
should be an acceptable change as runtime interposition on the Python
interpreter library is generally undesirable.
--- Python-2.7.1/configure.in.orig	2011-11-07 10:05:49.959873160 -0800
+++ Python-2.7.1/configure.in	2011-11-07 10:05:38.932222244 -0800
@@ -1812,11 +1812,11 @@
 	IRIX*/6*) LDSHARED="ld ${SGI_ABI} -shared -all";;
 	SunOS/5*) 
 		if test "$GCC" = "yes" ; then
-			LDSHARED='$(CC) -shared'
-			LDCXXSHARED='$(CXX) -shared'
+			LDSHARED='$(CC) -shared -Wl,-Bsymbolic'
+			LDCXXSHARED='$(CXX) -shared -Wl,-Bsymbolic'
 		else
-			LDSHARED='$(CC) -G'
-			LDCXXSHARED='$(CXX) -G'
+			LDSHARED='$(CC) -G -Wl,-Bsymbolic'
+			LDCXXSHARED='$(CXX) -G -Wl,-Bsymbolic'
 		fi ;;
 	hp*|HP*)
 		if test "$GCC" = "yes" ; then
@@ -2008,7 +2008,7 @@
 		  *gcc*)
 		    if $CC -Xlinker --help 2>&1 | grep export-dynamic >/dev/null
 		    then
-			LINKFORSHARED="-Xlinker --export-dynamic"
+			LINKFORSHARED="-Xlinker --export-dynamic -Xlinker -Bsymbolic"
 		    fi;;
 		  esac;;
 	CYGWIN*)