bitbake-worker: Extra profiling data dump

Currently we get no profiling oversight into either the main bitbake worker
process, or the overall parsing before task execution. This adds in extra
profiling hooks so we can truly capture all parts of bitbake's execution
into the profile data.

To do this we modify the 'magic' value passed to bitbake-worker to trigger
the profiling, before the configuration data is sent over to the worker.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 5 insertions, 2 deletions

diff --git a/lib/bb/runqueue.py b/lib/bb/runqueue.py
index e32f81a16..39df79473 100644
--- a/lib/bb/runqueue.py
+++ b/lib/bb/runqueue.py
@@ -859,15 +859,18 @@ class RunQueue:
 
     def _start_worker(self, fakeroot = False, rqexec = None):
         logger.debug(1, "Starting bitbake-worker")
+        magic = "decafbad"
+        if self.cooker.configuration.profile:
+            magic = "decafbadbad"
         if fakeroot:
             fakerootcmd = self.cfgData.getVar("FAKEROOTCMD", True)
             fakerootenv = (self.cfgData.getVar("FAKEROOTBASEENV", True) or "").split()
             env = os.environ.copy()
             for key, value in (var.split('=') for var in fakerootenv):
                 env[key] = value
-            worker = subprocess.Popen([fakerootcmd, "bitbake-worker", "decafbad"], stdout=subprocess.PIPE, stdin=subprocess.PIPE, env=env)
+            worker = subprocess.Popen([fakerootcmd, "bitbake-worker", magic], stdout=subprocess.PIPE, stdin=subprocess.PIPE, env=env)
         else:
-            worker = subprocess.Popen(["bitbake-worker", "decafbad"], stdout=subprocess.PIPE, stdin=subprocess.PIPE)
+            worker = subprocess.Popen(["bitbake-worker", magic], stdout=subprocess.PIPE, stdin=subprocess.PIPE)
         bb.utils.nonblockingfd(worker.stdout)
         workerpipe = runQueuePipe(worker.stdout, None, self.cfgData, self, rqexec)