postinst-intercepts, qemu.bbclass: fix segfaults in postinstalls

Postinstalls that use qemu are throwing a segmentation fault when
building for qemux86-64 on a 64bit host (it might also happen for
qemux86 if building on a 32bit host but I didn't test). It looks like
qemu looks for ld.so.cache which is not found because it is generated
after rootfs_(rpm|ipk|deb)_do_rootfs is called and then it tries to load
libraries from the default paths (which are the host's). In order to
avoid this, pass the LD_LIBRARY_PATH explicitly to the target's dynamic
loader.

(From OE-Core rev: 48e8b613b3f5c7b1d917bf3147606d44072ce49e)

Signed-off-by: Laurentiu Palcu <laurentiu.palcu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/fontcache.bbclass

@@ -15,7 +15,8 @@ FONT_PACKAGES ??= "${PN}"
 #
 fontcache_common() {
 if [ "x$D" != "x" ] ; then
-	$INTERCEPT_DIR/postinst_intercept update_font_cache ${PKG} bindir=${bindir}
+	$INTERCEPT_DIR/postinst_intercept update_font_cache ${PKG} bindir=${bindir} \
+		libdir=${libdir} base_libdir=${base_libdir}
 	exit 1
 fi
 

meta/classes/gtk-icon-cache.bbclass

@@ -9,7 +9,8 @@ DEPENDS += "${@['hicolor-icon-theme', '']['${BPN}' == 'hicolor-icon-theme']} gtk
 #
 gtk_icon_cache_postinst() {
 if [ "x$D" != "x" ]; then
-    $INTERCEPT_DIR/postinst_intercept update_icon_cache ${PKG}
+    $INTERCEPT_DIR/postinst_intercept update_icon_cache ${PKG} libdir=${libdir} \
+        base_libdir=${base_libdir}
     exit 1
 fi
 
@@ -25,7 +26,9 @@ done
 
 gtk_icon_cache_postrm() {
 if [ "x$D" != "x" ]; then
-    $INTERCEPT_DIR/postinst_intercept update_icon_cache ${PKG}
+    $INTERCEPT_DIR/postinst_intercept update_icon_cache ${PKG} libdir=${libdir} \
+        base_libdir=${base_libdir}
+
     exit 1
 fi
 

meta/classes/pixbufcache.bbclass

@@ -15,7 +15,8 @@ PIXBUF_PACKAGES ??= "${PN}"
 #
 pixbufcache_common() {
 if [ "x$D" != "x" ]; then
-	$INTERCEPT_DIR/postinst_intercept update_pixbuf_cache ${PKG} libdir=${libdir} bindir=${bindir}
+	$INTERCEPT_DIR/postinst_intercept update_pixbuf_cache ${PKG} libdir=${libdir} \
+		bindir=${bindir} base_libdir=${base_libdir}
 	exit 1
 fi
 

meta/classes/qemu.bbclass

@@ -29,4 +29,9 @@ def qemu_run_binary(data, rootfs_path, binary):
     if qemu_binary == "qemu-allarch":
         qemu_binary = "qemuwrapper"
 
-    return "PSEUDO_UNLOAD=1 " + qemu_binary + " -L " + rootfs_path + " " + rootfs_path + binary
+    libdir = rootfs_path + data.getVar("libdir", False)
+    base_libdir = rootfs_path + data.getVar("base_libdir", False)
+
+    return "PSEUDO_UNLOAD=1 " + qemu_binary + " -L " + rootfs_path\
+            + " -E LD_LIBRARY_PATH=" + libdir + ":" + base_libdir + " "\
+            + rootfs_path + binary

scripts/postinst-intercepts/update_font_cache

@@ -1,5 +1,6 @@
 #!/bin/sh
 
-PSEUDO_UNLOAD=1 qemuwrapper -L $D $D${bindir}/fc-cache --sysroot=$D >/dev/null 2>&1
+PSEUDO_UNLOAD=1 qemuwrapper -L $D -E LD_LIBRARY_PATH=$D/${libdir}:$D/${base_libdir}\
+					$D${bindir}/fc-cache --sysroot=$D >/dev/null 2>&1
 
 

scripts/postinst-intercepts/update_pixbuf_cache

@@ -2,7 +2,8 @@
 
 export GDK_PIXBUF_MODULEDIR=$D${libdir}/gdk-pixbuf-2.0/2.10.0/loaders
 
-PSEUDO_UNLOAD=1 qemuwrapper -L $D $D${bindir}/gdk-pixbuf-query-loaders \
+PSEUDO_UNLOAD=1 qemuwrapper -L $D -E LD_LIBRARY_PATH=$D/${libdir}:$D/${base_libdir}\
+    $D${bindir}/gdk-pixbuf-query-loaders \
     >$GDK_PIXBUF_MODULEDIR/../loaders.cache 2>/dev/null && \
     sed -i -e "s:$D::g" $GDK_PIXBUF_MODULEDIR/../loaders.cache