QT4 mips: disable the LDFLAGS "-Bsymbolic-functions"

"-Bsymbolic-functions" flag makes ld to bind the global function symbol of shared library at compiling time, thus reduce the runtime relocation cost.

However, this flag in binutil 2.20 cause QT4 mips building failure, which is "final link failed: Bad value" error in libQtWebKit.so linking stage. If downgrad to binutil 2.19, this error disappears.

so before binutil new release is out, it is better to disable this flag for QT4 mips.

Fix [BUGID #271]

Signed-off-by: Yu Ke <ke.yu@intel.com>

2 files changed, 29 insertions, 0 deletions

diff --git a/meta/recipes-qt/qt4/files/mips-relocate.patch b/meta/recipes-qt/qt4/files/mips-relocate.patch
new file mode 100644
index 0000000000..2fde9a0dcf
--- /dev/null
+++ b/meta/recipes-qt/qt4/files/mips-relocate.patch
@@ -0,0 +1,28 @@
+Disable the LDFLAGS "-Bsymbolic-functions" for mips
+
+"-Bsymbolic-functions" flag makes ld to bind the global function symbol of shared library at compiling time, thus reduce the runtime relocation cost.
+
+However, this flag in binutil 2.20 cause QT4 mips building failure, which is "final link failed: Bad value" error in libQtWebKit.so linking stage. If downgrad to binutil 2.19, this error disappears. further investigation showes commit http://sourceware.org/cgi-bin/cvsweb.cgi/src/ld/scripttempl/mips.sc.diff?r1=1.2&r2=1.3&cvsroot=src cause this error.
+
+So this patch disable this flag for QT4 mips. If future binutils version fix this issue, this patch can be safely removed.
+
+Signed-off-by: Yu Ke <ke.yu@intel.com>
+
+diff --git a/configure b/configure
+index ca14279..5db9926 100755
+--- a/configure
++++ b/configure
+@@ -3035,6 +3035,13 @@ if [ "$CFG_REDUCE_RELOCATIONS" != "no" ]; then
+     fi
+ fi
+ 
++# Temporily disable -Bsymbolic-functions for mips, because libQtWebKit can not pass the build
++# if has -Bsymbolic-functions and binutil 2.20
++# -Bsymbolic-functions is OK in binutil 2.19
++if [ "$CFG_ARCH" = "mips" ]; then
++    CFG_REDUCE_RELOCATIONS=no
++fi
++
+ # auto-detect GNU make support
+ if [ "$CFG_USE_GNUMAKE" = "auto" ] && "$MAKE" -v | grep "GNU Make" >/dev/null 2>&1; then
+    CFG_USE_GNUMAKE=yes
diff --git a/meta/recipes-qt/qt4/qt-4.6.3.inc b/meta/recipes-qt/qt4/qt-4.6.3.inc
index 9f4e221bb5..155af66b89 100644
--- a/meta/recipes-qt/qt4/qt-4.6.3.inc
+++ b/meta/recipes-qt/qt4/qt-4.6.3.inc
@@ -16,6 +16,7 @@ SRC_URI = "http://get.qt.nokia.com/qt/source/qt-everywhere-opensource-src-${PV}.
            file://g++.conf \
            file://linux.conf \
            file://hack-out-pg_config.patch \
+           file://mips-relocate.patch \
            "
 
 S = "${WORKDIR}/qt-everywhere-opensource-src-${PV}"