bitbake/fetch2: correctly decode exit signal/status

The termination signal and exit code of the fetch process were not being
decoded correctly, resulting in bitbake reporting that the process
terminated with a signal of the exit code (if it was under 255). There
are functions in the Python os module to do this decoding correctly (for
Unix at least), so let's use them.

(Bitbake rev: 50aea9a76e40cf71cc3f1462c88298e4846a031c)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 7 insertions, 4 deletions

diff --git a/bitbake/lib/bb/fetch2/__init__.py b/bitbake/lib/bb/fetch2/__init__.py
index 21abb13..771f72e 100644
--- a/bitbake/lib/bb/fetch2/__init__.py
+++ b/bitbake/lib/bb/fetch2/__init__.py
@@ -422,8 +422,11 @@ def runfetchcmd(cmd, d, quiet = False, cleanup = []):
         output += line
 
     status = stdout_handle.close() or 0
-    signal = status >> 8
-    exitstatus = status & 0xff
+    signal = os.WTERMSIG(status)
+    if os.WIFEXITED(status):
+        exitstatus = os.WEXITSTATUS(status)
+    else:
+        exitstatus = 0
 
     if (signal or status != 0):
         for f in cleanup:
@@ -434,8 +437,8 @@ def runfetchcmd(cmd, d, quiet = False, cleanup = []):
 
         if signal:
             raise FetchError("Fetch command %s failed with signal %s, output:\n%s" % (cmd, signal, output))
-        elif status != 0:
-            raise FetchError("Fetch command %s failed with exit code %s, output:\n%s" % (cmd, status, output))
+        elif exitstatus:
+            raise FetchError("Fetch command %s failed with exit code %s, output:\n%s" % (cmd, exitstatus, output))
 
     return output