bitbake: bitbake: runqueue: Verify mcdepends are valid

In order to avoid a potentially confusing backtrace, check that the mcdepend
is valid when we add it.

Add a test case to ensure invalid configurations are caught and trigger an
error.

[RP: Reworked test case to simplify and improve code]
(Bitbake rev: ff523497270f37b484b44a4445c2194791bcb6ff)

Signed-off-by: Mark Hatle <mark.hatle@amd.com>
Signed-off-by: Mark Hatle <mark.hatle@kernel.crashing.org>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/bitbake/lib/bb/runqueue.py b/bitbake/lib/bb/runqueue.py
index ad4ce0b0e2..8fadc8338e 100644
--- a/bitbake/lib/bb/runqueue.py
+++ b/bitbake/lib/bb/runqueue.py
@@ -729,6 +729,8 @@ class RunQueueData:
                 if mc == frommc:
                     fn = taskData[mcdep].build_targets[pn][0]
                     newdep = '%s:%s' % (fn,deptask)
+                    if newdep not in taskData[mcdep].taskentries:
+                        bb.fatal("Task mcdepends on non-existent task %s" % (newdep))
                     taskData[mc].taskentries[tid].tdepends.append(newdep)
 
         for mc in taskData: