build: improve set -x handling

- set -x always, not just when debugging
- set -x immediately before executing the function, rather than at the top of
  the script, so the output is no longer cluttered with all the variable and
  function definitions

Signed-off-by: Chris Larson <chris_larson@mentor.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/lib/bb/build.py b/lib/bb/build.py
index ff2d55ec2..eb2306ea3 100644
--- a/lib/bb/build.py
+++ b/lib/bb/build.py
@@ -220,10 +220,9 @@ def exec_func_shell(function, d, runfile, logfile, cwd=None, fakeroot=False):
 
     with open(runfile, 'w') as script:
         script.write('#!/bin/sh -e\n')
-        if logger.isEnabledFor(logging.DEBUG):
-            script.write("set -x\n")
         data.emit_func(function, script, d)
 
+        script.write("set -x\n")
         script.write("%s\n" % function)
         os.fchmod(script.fileno(), 0775)