[PATCH v3 2/2] 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           | 2 ++
 meta/classes/image.bbclass                 | 1 +
 meta/classes/isar-bootstrap-helper.bbclass | 3 +++
 meta/classes/isar-image.bbclass            | 1 +
 4 files changed, 7 insertions(+)

diff --git a/meta/classes/buildchroot.bbclass b/meta/classes/buildchroot.bbclass
index 26d5e80..d2f138f 100644
--- a/meta/classes/buildchroot.bbclass
+++ b/meta/classes/buildchroot.bbclass
@@ -31,5 +31,7 @@ buildchroot_do_mounts() {
             mount --make-rslave ${BUILDCHROOT_DIR}/dev
             mount --rbind /proc ${BUILDCHROOT_DIR}/proc
             mount --make-rslave ${BUILDCHROOT_DIR}/proc
+            mount --rbind /sys ${BUILDCHROOT_DIR}/sys
+            mount --make-rslave ${BUILDCHROOT_DIR}/sys
         fi'
 }
diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
index d033cf5..5806a59 100644
--- a/meta/classes/image.bbclass
+++ b/meta/classes/image.bbclass
@@ -110,6 +110,7 @@ do_populate_sdk() {
 
     sudo umount ${SDKCHROOT_DIR}/rootfs/dev || true
     sudo umount ${SDKCHROOT_DIR}/rootfs/proc || true
+    sudo umount ${SDKCHROOT_DIR}/rootfs/sys || true
 
     # Create SDK archive
     sudo tar -C ${SDKCHROOT_DIR} --transform="s|^rootfs|sdk-${DISTRO}-${DISTRO_ARCH}|" \
diff --git a/meta/classes/isar-bootstrap-helper.bbclass b/meta/classes/isar-bootstrap-helper.bbclass
index 62c0839..7b2ddf3 100644
--- a/meta/classes/isar-bootstrap-helper.bbclass
+++ b/meta/classes/isar-bootstrap-helper.bbclass
@@ -107,6 +107,9 @@ setup_root_file_system() {
     sudo mount --make-rslave ${ROOTFSDIR}/dev
     sudo mount --rbind /proc ${ROOTFSDIR}/proc
     sudo mount --make-rslave ${ROOTFSDIR}/proc
+    sudo install -m 755 -d ${ROOTFSDIR}/sys
+    sudo mount --rbind /sys ${ROOTFSDIR}/sys
+    sudo mount --make-rslave ${ROOTFSDIR}/sys
 
     # Install packages:
     E="${@ bb.utils.export_proxies(d)}"
diff --git a/meta/classes/isar-image.bbclass b/meta/classes/isar-image.bbclass
index e0508be..356c97a 100644
--- a/meta/classes/isar-image.bbclass
+++ b/meta/classes/isar-image.bbclass
@@ -61,6 +61,7 @@ isar_image_cleanup() {
     sudo rmdir ${IMAGE_ROOTFS}/isar-apt
     sudo umount -l ${IMAGE_ROOTFS}/dev
     sudo umount -l ${IMAGE_ROOTFS}/proc
+    sudo umount -l ${IMAGE_ROOTFS}/sys
     sudo rm -f "${IMAGE_ROOTFS}/etc/apt/apt.conf.d/55isar-fallback.conf"
 }
 
-- 
2.11.0