[PATCH v2] buildchroot: add sysfs mount since expected by some packages

[Cedric Hombourger <Cedric_Hombourger@mentor.com>]

Some packages look for /sys when they configure, build or test themselves (for
instance golang-google-grpc).

Signed-off-by: Cedric Hombourger <Cedric_Hombourger@mentor.com>
---
 meta/classes/buildchroot.bbclass           | 1 +
 meta/classes/isar-bootstrap-helper.bbclass | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/meta/classes/buildchroot.bbclass b/meta/classes/buildchroot.bbclass
index 870d27c..6bc57f4 100644
--- a/meta/classes/buildchroot.bbclass
+++ b/meta/classes/buildchroot.bbclass
@@ -29,5 +29,6 @@ buildchroot_do_mounts() {
             mount --bind ${DL_DIR} ${BUILDCHROOT_DIR}/downloads
             mount -t devtmpfs -o mode=0755,nosuid devtmpfs ${BUILDCHROOT_DIR}/dev
             mount -t proc none ${BUILDCHROOT_DIR}/proc
+            mount -t sysfs none ${BUILDCHROOT_DIR}/sys
         fi'
 }
diff --git a/meta/classes/isar-bootstrap-helper.bbclass b/meta/classes/isar-bootstrap-helper.bbclass
index 1ac39db..874bed4 100644
--- a/meta/classes/isar-bootstrap-helper.bbclass
+++ b/meta/classes/isar-bootstrap-helper.bbclass
@@ -105,6 +105,8 @@ setup_root_file_system() {
 
     sudo mount -t devtmpfs -o mode=0755,nosuid devtmpfs $ROOTFSDIR/dev
     sudo mount -t proc none $ROOTFSDIR/proc
+    sudo install -m 755 -d $ROOTFSDIR/sys
+    sudo mount -t sysfs none $ROOTFSDIR/sys
 
     # Install packages:
     E="${@ bb.utils.export_proxies(d)}"
-- 
2.11.0