BaseTools/build.py: Exit with 1 when AutoGen error occurred

AutoGen manager/workers halt the progress when an error occurs but
doesn't propagate the error code to main and allows main exit with 0
and gets the build system unable to catch the occurrence of an error.
This change informs main with an error when a progress is halted and
helps main exit with 1.

Signed-off-by: Irene Park <ipark@nvidia.com>
Reviewed-by: Bob Feng<bob.c.feng@intel.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/BaseTools/Source/Python/build/build.py b/BaseTools/Source/Python/build/build.py
index ed3a3b978d..1ab1e60a64 100755
--- a/BaseTools/Source/Python/build/build.py
+++ b/BaseTools/Source/Python/build/build.py
@@ -880,7 +880,10 @@ class Build():
 

             self.AutoGenMgr.join()

             rt = self.AutoGenMgr.Status

-            return rt, 0

+            err = 0

+            if not rt:

+                err = UNKNOWN_ERROR

+            return rt, err

         except FatalError as e:

             return False, e.args[0]

         except:

@@ -2724,4 +2727,3 @@ if __name__ == '__main__':
     ## 0-127 is a safe return range, and 1 is a standard default error

     if r < 0 or r > 127: r = 1

     sys.exit(r)

-