diff options
authorHombourger, Cedric <>2020-11-18 16:36:13 +0100
committerRichard Purdie <>2020-11-24 15:26:12 +0000
commit53217b1121da0bc9895edce16cc483dd1f166cc0 (patch)
parent7ae3a24079384573bb988bcd1f065548c05b13fd (diff)
bitbake: fetch2: use relative symlinks for anything pulled from PREMIRRORS
try_mirror_url() creates a symlink named as the original file to make everything look like files specified in SRC_URI were downloaded from their original location. The link is however created as an absolute reference, this makes DL_DIR non-relocatable. This also causes issues with the Isar project since it bind mounts DL_DIR to /downloads to perform some of its build tasks in a chrooted environment (rendering all symbolic links from DL_DIR invalid). Modify ensure_symlink() to take an optional "relative" argument and have that function use os.path.relpath() to produce a relative symlink. (Bitbake rev: 481e66ea8fc2fc91903127d66b0f1b0fe86baedb) Signed-off-by: Cedric Hombourger <> Cc: Chris Larson <> Signed-off-by: Richard Purdie <>
1 files changed, 5 insertions, 2 deletions
diff --git a/bitbake/lib/bb/fetch2/ b/bitbake/lib/bb/fetch2/
index 07b7ae41b4..290773072f 100644
--- a/bitbake/lib/bb/fetch2/
+++ b/bitbake/lib/bb/fetch2/
@@ -1021,7 +1021,8 @@ def try_mirror_url(fetch, origud, ud, ld, check = False):
origud.method.build_mirror_data(origud, ld)
return origud.localpath
# Otherwise the result is a local file:// and we symlink to it
- ensure_symlink(ud.localpath, origud.localpath)
+ ensure_symlink(ud.localpath, origud.localpath, relative=True)
update_stamp(origud, ld)
return ud.localpath
@@ -1055,7 +1056,7 @@ def try_mirror_url(fetch, origud, ud, ld, check = False):
-def ensure_symlink(target, link_name):
+def ensure_symlink(target, link_name, relative=False):
if not os.path.exists(link_name):
if os.path.islink(link_name):
# Broken symbolic link
@@ -1066,6 +1067,8 @@ def ensure_symlink(target, link_name):
# same time, in which case we do not want the second task to
# fail when the link has already been created by the first task.
+ if relative is True:
+ target = os.path.relpath(target, os.path.dirname(link_name))
os.symlink(target, link_name)
except FileExistsError: