rootfs: remove ldconfig auxiliary cache where appropriate

Removes the /var/cache/ldconfig auxiliary cache directory from
the rootfs when:
 - read-only-rootfs is in IMAGE_FEATURES,
 - ldconfig is not in DISTRO_FEATURES.

In both cases the /var/cache/ldconfig/aux-cache is useless.

(From OE-Core rev: e7a18904582b27fd12a437ff4d8d25c625af7696)

Signed-off-by: Damian Wrobel <dwrobel@ertelnet.rybnik.pl>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/meta/lib/oe/rootfs.py b/meta/lib/oe/rootfs.py
index ad9fd77c8b..4ea5adb9f4 100644
--- a/meta/lib/oe/rootfs.py
+++ b/meta/lib/oe/rootfs.py
@@ -302,6 +302,16 @@ class Rootfs(object, metaclass=ABCMeta):
             self._exec_shell_cmd(['ldconfig', '-r', self.image_rootfs, '-c',
                                   'new', '-v', '-X'])
 
+        image_rorfs = bb.utils.contains("IMAGE_FEATURES", "read-only-rootfs",
+                                        True, False, self.d)
+        ldconfig_in_features = bb.utils.contains("DISTRO_FEATURES", "ldconfig",
+                                                 True, False, self.d)
+        if image_rorfs or not ldconfig_in_features:
+            ldconfig_cache_dir = os.path.join(self.image_rootfs, "var/cache/ldconfig")
+            if os.path.exists(ldconfig_cache_dir):
+                bb.note("Removing ldconfig auxiliary cache...")
+                shutil.rmtree(ldconfig_cache_dir)
+
     def _check_for_kernel_modules(self, modules_dir):
         for root, dirs, files in os.walk(modules_dir, topdown=True):
             for name in files: