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staging: Avoid sysroot removal races

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Currently a task could remove a dependency needed by another task leading
to build failures, often due to missing dependencies (e.g. dynamic libraries
not being found). This was often seen for all-arch recipes in package_write_rpm.

When removing a dependency, first check that no other task active for the
recipe has that same dependency.

(From OE-Core rev: ff3617cc2cd5618f48a25aa4e3b2014430fcbe23)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Richard Purdie
2017-08-26 23:30:39 +01:00
parent 5ad6333911
commit 3de0786429
1 changed files with 20 additions and 5 deletions
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25
meta/classes/staging.bbclass
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@@ -247,6 +247,7 @@ python extend_recipe_sysroot() {
import subprocess
import errno
import collections
import glob
taskdepdata = d.getVar("BB_TASKDEPDATA", False)
mytaskname = d.getVar("BB_RUNTASK")
@@ -531,6 +532,7 @@ python extend_recipe_sysroot() {
# to be insignificant
taskindex = depdir + "/" + "index." + mytaskname
if os.path.exists(taskindex):
potential = []
with open(taskindex, "r") as f:
for l in f:
l = l.strip()
@@ -539,11 +541,24 @@ python extend_recipe_sysroot() {
if not os.path.exists(l):
# Was likely already uninstalled
continue
bb.note("Task %s no longer depends on %s, removing from sysroot" % (mytaskname, l))
lnk = os.readlink(l)
sstate_clean_manifest(depdir + "/" + lnk, d, workdir)
os.unlink(l)
os.unlink(l + ".complete")
potential.append(l)
# We need to ensure not other task needs this dependency. We hold the sysroot
# lock so we ca search the indexes to check
if potential:
for i in glob.glob(depdir + "/index.*"):
if i.endswith("." + mytaskname):
continue
with open(i, "r") as f:
for l in f:
l = l.strip()
if l in potential:
potential.remove(l)
for l in potential:
bb.note("Task %s no longer depends on %s, removing from sysroot" % (mytaskname, l))
lnk = os.readlink(l)
sstate_clean_manifest(depdir + "/" + lnk, d, workdir)
os.unlink(l)
os.unlink(l + ".complete")
with open(taskindex, "w") as f:
for l in sorted(installed):
f.write(l + "\n")