Revert "[test] Report error when inferior test processes exit with a non-zero code"

This reverts r275782.

The problem with the commit is that it reports an additional "exit (1)" error for every file
containing a failing test, which is far more than I had intended to do. I'll need to come up with
a more fine-grained way of achieving the result.

llvm-svn: 275791

2 files changed, 19 insertions, 11 deletions

diff --git a/lldb/packages/Python/lldbsuite/test/dosep.py b/lldb/packages/Python/lldbsuite/test/dosep.py
index 0503243dead..37ca91adb14 100644
--- a/lldb/packages/Python/lldbsuite/test/dosep.py
+++ b/lldb/packages/Python/lldbsuite/test/dosep.py
@@ -109,14 +109,13 @@ def report_test_failure(name, command, output, timeout):
     with output_lock:
         if not (RESULTS_FORMATTER and RESULTS_FORMATTER.is_using_terminal()):
             print(file=sys.stderr)
+            print(output, file=sys.stderr)
             if timeout:
                 timeout_str = " (TIMEOUT)"
             else:
                 timeout_str = ""
             print("[%s FAILED]%s" % (name, timeout_str), file=sys.stderr)
             print("Command invoked: %s" % ' '.join(command), file=sys.stderr)
-            print("Command stderr:\n", output[1], file=sys.stderr)
-            print("Command stdout:\n", output[0], file=sys.stderr)
         update_progress(name)
 
 
@@ -211,7 +210,7 @@ class DoTestProcessDriver(process_control.ProcessDriver):
             # only stderr does.
             report_test_pass(self.file_name, output[1])
         else:
-            report_test_failure(self.file_name, command, output, was_timeout)
+            report_test_failure(self.file_name, command, output[1], was_timeout)
 
         # Save off the results for the caller.
         self.results = (
diff --git a/lldb/packages/Python/lldbsuite/test/test_runner/process_control.py b/lldb/packages/Python/lldbsuite/test/test_runner/process_control.py
index 5f693c1fa57..a7e639e4b8b 100644
--- a/lldb/packages/Python/lldbsuite/test/test_runner/process_control.py
+++ b/lldb/packages/Python/lldbsuite/test/test_runner/process_control.py
@@ -246,25 +246,33 @@ class ProcessHelper(object):
     def is_exceptional_exit(self, popen_status):
         """Returns whether the program exit status is exceptional.
 
-        Returns whether the return code from a Popen process is exceptional.
+        Returns whether the return code from a Popen process is exceptional
+        (e.g. signals on POSIX systems).
+
+        Derived classes should override this if they can detect exceptional
+        program exit.
 
         @return True if the given popen_status represents an exceptional
         program exit; False otherwise.
         """
-        return popen_status != 0
+        return False
 
     def exceptional_exit_details(self, popen_status):
         """Returns the normalized exceptional exit code and a description.
 
         Given an exceptional exit code, returns the integral value of the
-        exception and a description for the result.
+        exception (e.g. signal number for POSIX) and a description (e.g.
+        signal name on POSIX) for the result.
+
+        Derived classes should override this if they can detect exceptional
+        program exit.
 
-        Derived classes can override this if they want to want custom
-        exceptional exit code handling.
+        It is fine to not implement this so long as is_exceptional_exit()
+        always returns False.
 
         @return (normalized exception code, symbolic exception description)
         """
-        return (popen_status, "exit")
+        raise Exception("exception_exit_details() called on unsupported class")
 
 
 class UnixProcessHelper(ProcessHelper):
@@ -389,6 +397,9 @@ class UnixProcessHelper(ProcessHelper):
     def soft_terminate_signals(self):
         return [signal.SIGQUIT, signal.SIGTERM]
 
+    def is_exceptional_exit(self, popen_status):
+        return popen_status < 0
+
     @classmethod
     def _signal_names_by_number(cls):
         return dict(
@@ -396,8 +407,6 @@ class UnixProcessHelper(ProcessHelper):
             if v.startswith('SIG') and not v.startswith('SIG_'))
 
     def exceptional_exit_details(self, popen_status):
-        if popen_status >= 0:
-            return (popen_status, "exit")
         signo = -popen_status
         signal_names_by_number = self._signal_names_by_number()
         signal_name = signal_names_by_number.get(signo, "")