util: add m5_fail op.

Used as a command in full-system scripts helps the user ensure the benchmarks have finished successfully.

For example, one can use:

    /path/to/benchmark args || /sbin/m5 fail 1

and thus ensure gem5 will exit with an error if the benchmark fails.

1 files changed, 3 insertions, 0 deletions

diff --git a/configs/common/Simulation.py b/configs/common/Simulation.py
index ea5949efc..406f9ef0f 100644
--- a/configs/common/Simulation.py
+++ b/configs/common/Simulation.py
@@ -27,6 +27,7 @@
 #
 # Authors: Lisa Hsu
 
+import sys
 from os import getcwd
 from os.path import join as joinpath
 
@@ -505,3 +506,5 @@ def run(options, root, testsys, cpu_class):
     print 'Exiting @ tick %i because %s' % (m5.curTick(), exit_cause)
     if options.checkpoint_at_end:
         m5.checkpoint(joinpath(cptdir, "cpt.%d"))
+
+    sys.exit(exit_event.getCode())