[PATCH] build.py: Ensure shared work siginfo files are written to the correct location

[Richard Purdie <richard.purdie@linuxfoundation.org>]

Right now shared work signature data is saved to the non-shared directory
which is confusing to everyone including bitbake. Whilst its messy,
extra the stampbase data instead, which ensures the sig data is written
to the correct location alongside its corresponding stamp file.

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

diff --git a/bitbake/lib/bb/build.py b/bitbake/lib/bb/build.py
index 6b70ce5..d1eaed4 100644
--- a/bitbake/lib/bb/build.py
+++ b/bitbake/lib/bb/build.py
@@ -506,7 +506,7 @@ def exec_task(fn, task, d, profile = False):
             event.fire(failedevent, d)
         return 1
 
-def stamp_internal(taskname, d, file_name):
+def stamp_internal(taskname, d, file_name, baseonly=False):
     """
     Internal stamp helper function
     Makes sure the stamp directory exists
@@ -527,6 +527,9 @@ def stamp_internal(taskname, d, file_name):
         file_name = d.getVar('BB_FILENAME', True)
         extrainfo = d.getVarFlag(taskflagname, 'stamp-extra-info', True) or ""
 
+    if baseonly:
+        return stamp
+
     if not stamp:
         return
 
@@ -591,8 +594,9 @@ def make_stamp(task, d, file_name = None):
     # If we're in task context, write out a signature file for each task
     # as it completes
     if not task.endswith("_setscene") and task != "do_setscene" and not file_name:
+        stampbase = stamp_internal(task, d, None, True)
         file_name = d.getVar('BB_FILENAME', True)
-        bb.parse.siggen.dump_sigtask(file_name, task, d.getVar('STAMP', True), True)
+        bb.parse.siggen.dump_sigtask(file_name, task, stampbase, True)
 
 def del_stamp(task, d, file_name = None):
     """