bitbake: bitbake: reset build mtime cache before the build

Introduced build mtime cache structure. Reset it before the build
to prevent bitbake from crashing when build/tmp/stamps hierarchy
is removed.

[YOCTO: #7562]

(Bitbake rev: f8590547a198a78334debdf14bf40acb50c22ecc)

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/bitbake/lib/bb/build.py b/bitbake/lib/bb/build.py
index 65cc851df453e390dd8c4f2fa99b0a6a71d338ad..0f6aa1a14c4d0ccb590fd6359ce0a2e0ff80f4ee 100644 (file)
--- a/bitbake/lib/bb/build.py
+++ b/bitbake/lib/bb/build.py
@@ -31,6 +31,7 @@ import logging
 import shlex
 import glob
 import time
+import stat
 import bb
 import bb.msg
 import bb.process
@@ -42,6 +43,20 @@ logger = logging.getLogger('BitBake.Build')
 
 NULL = open(os.devnull, 'r+')
 
+__mtime_cache = {}
+
+def cached_mtime_noerror(f):
+    if f not in __mtime_cache:
+        try:
+            __mtime_cache[f] = os.stat(f)[stat.ST_MTIME]
+        except OSError:
+            return 0
+    return __mtime_cache[f]
+
+def reset_cache():
+    global __mtime_cache
+    __mtime_cache = {}
+
 # When we execute a Python function, we'd like certain things
 # in all namespaces, hence we add them to __builtins__.
 # If we do not do this and use the exec globals, they will
@@ -535,7 +550,7 @@ def stamp_internal(taskname, d, file_name, baseonly=False):
     stamp = bb.parse.siggen.stampfile(stamp, file_name, taskname, extrainfo)
 
     stampdir = os.path.dirname(stamp)
-    if bb.parse.cached_mtime_noerror(stampdir) == 0:
+    if cached_mtime_noerror(stampdir) == 0:
         bb.utils.mkdirhier(stampdir)
 
     return stamp

diff --git a/bitbake/lib/bb/cooker.py b/bitbake/lib/bb/cooker.py
index 9c101f2e72049a2da3b2bd6f0644117bdf74f42e..ddf5fedb834e35e65f0c62b2638a44d6f66aef12 100644 (file)
--- a/bitbake/lib/bb/cooker.py
+++ b/bitbake/lib/bb/cooker.py
@@ -35,7 +35,7 @@ from contextlib import closing
 from functools import wraps
 from collections import defaultdict
 import bb, bb.exceptions, bb.command
-from bb import utils, data, parse, event, cache, providers, taskdata, runqueue
+from bb import utils, data, parse, event, cache, providers, taskdata, runqueue, build
 import Queue
 import signal
 import prserv.serv
@@ -1343,6 +1343,7 @@ class BBCooker:
                 return True
             return retval
 
+        build.reset_cache()
         self.buildSetVars()
 
         taskdata, runlist, fulltargetlist = self.buildTaskData(targets, task, self.configuration.abort)