[OE-core] [PATCH 1/1] sstate.bbclass:specify function dirs to avoid race

[Hongxu Jia]

Specify dirs in which the shell function "sstate_create_package" and
"sstate_unpack_package" are executed and don't use ${B} as default dirs
to avoid possible race with task do_rootfs at deb image creation time.

[YOCTO #3674]

Signed-off-by: Hongxu Jia <hongxu.jia at windriver.com>
---
 meta/classes/sstate.bbclass |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/meta/classes/sstate.bbclass b/meta/classes/sstate.bbclass
index d544da9..68fd996 100644
--- a/meta/classes/sstate.bbclass
+++ b/meta/classes/sstate.bbclass
@@ -33,6 +33,11 @@ SSTATE_MANMACH ?= "${SSTATE_PKGARCH}"
 SSTATEPREINSTFUNCS ?= ""
 SSTATEPOSTINSTFUNCS ?= ""
 
+# Specify dirs in which the shell function is executed and don't use ${B}
+# as default dirs to avoid possible race about ${B} with other task.
+sstate_create_package[dirs] = "${SSTATE_BUILDDIR}"
+sstate_unpack_package[dirs] = "${SSTATE_INSTDIR}"
+
 python () {
     if bb.data.inherits_class('native', d):
         d.setVar('SSTATE_PKGARCH', d.getVar('BUILD_ARCH'))
-- 
1.7.10.4