1 files changed, 21 insertions, 2 deletions

diff --git a/bitbake/lib/bb/build.py b/bitbake/lib/bb/build.py
index 5a1727116a..44d08f5c55 100644
--- a/bitbake/lib/bb/build.py
+++ b/bitbake/lib/bb/build.py
@@ -25,6 +25,7 @@ import bb
 import bb.msg
 import bb.process
 import bb.progress
+from io import StringIO
 from bb import data, event, utils
 
 bblogger = logging.getLogger('BitBake')
@@ -177,7 +178,9 @@ class StdoutNoopContextManager:
 
     @property
     def name(self):
-        return sys.stdout.name
+        if "name" in dir(sys.stdout):
+            return sys.stdout.name
+        return "<mem>"
 
 
 def exec_func(func, d, dirs = None):
@@ -296,9 +299,21 @@ def exec_func_python(func, d, runfile, cwd=None):
         lineno = int(d.getVarFlag(func, "lineno", False))
         bb.methodpool.insert_method(func, text, fn, lineno - 1)
 
+        if verboseStdoutLogging:
+            sys.stdout.flush()
+            sys.stderr.flush()
+            currout = sys.stdout
+            currerr = sys.stderr
+            sys.stderr = sys.stdout = execio = StringIO()
         comp = utils.better_compile(code, func, "exec_func_python() autogenerated")
         utils.better_exec(comp, {"d": d}, code, "exec_func_python() autogenerated")
     finally:
+        if verboseStdoutLogging:
+            execio.flush()
+            logger.plain("%s" % execio.getvalue())
+            sys.stdout = currout
+            sys.stderr = currerr
+            execio.close()
         # We want any stdout/stderr to be printed before any other log messages to make debugging
         # more accurate. In some cases we seem to lose stdout/stderr entirely in logging tests without this.
         sys.stdout.flush()
@@ -441,7 +456,11 @@ exit $ret
         if fakerootcmd:
             cmd = [fakerootcmd, runfile]
 
-    if verboseStdoutLogging:
+    # We only want to output to logger via LogTee if stdout is sys.__stdout__ (which will either
+    # be real stdout or subprocess PIPE or similar). In other cases we are being run "recursively",
+    # ie. inside another function, in which case stdout is already being captured so we don't
+    # want to Tee here as output would be printed twice, and out of order.
+    if verboseStdoutLogging and sys.stdout == sys.__stdout__:
         logfile = LogTee(logger, StdoutNoopContextManager())
     else:
         logfile = StdoutNoopContextManager()