Subzero: Add "szbuild_spec2k.py --run" option.

pydir/szbuild_spec2k.py

 #!/usr/bin/env python2
 
 import argparse
 import os
 import sys
 
 import szbuild
 
-from utils import FindBaseNaCl
+from utils import FindBaseNaCl, shellcmd
 
 def main():
     """Build native gcc-style executables for one or all Spec2K components.
 
     Afterwards, the executables can be run from the
     native_client/tests/spec2k/ directory as:
     './run_all.sh RunBenchmarks SetupGccX8632Opt {train|ref} ...'
     -- or --
     './run_all.sh RunBenchmarks SetupPnaclX8632Opt {train|ref} ...'
     """
     nacl_root = FindBaseNaCl()
     # Use the same default ordering as spec2k/run_all.sh.
     components = [ '177.mesa', '179.art', '183.equake', '188.ammp', '164.gzip',
                    '175.vpr', '176.gcc', '181.mcf', '186.crafty', '197.parser',
                    '253.perlbmk', '254.gap', '255.vortex', '256.bzip2',
                    '300.twolf', '252.eon' ]
 
     argparser = argparse.ArgumentParser(description=main.__doc__)
     szbuild.AddOptionalArgs(argparser)
+    argparser.add_argument('--run', dest='run', action='store_true',
+                           help='Run after building')
     argparser.add_argument('comps', nargs='*', default=components)
     args = argparser.parse_args()
     bad = set(args.comps) - set(components)
     if bad:
         print 'Unknown component{s}: '.format(s='s' if len(bad) > 1 else '') + \
             ' '.join(x for x in bad)
         sys.exit(1)
 
     # Fix up Subzero target strings for the run_all.sh script.
     target_map = {
@@ skipping 11 matching lines @@
         if name[0] == '.':
             name = name[1:]
         szbuild.ProcessPexe(args,
                             ('{root}/tests/spec2k/{comp}/' +
                              '{name}.opt.stripped.pexe'
                              ).format(root=nacl_root, comp=comp, name=name),
                             ('{root}/tests/spec2k/{comp}/' +
                              '{name}.{suffix}'
                              ).format(root=nacl_root, comp=comp, name=name,
                                       suffix=suffix))
+    if args.run:
+        os.chdir('{root}/tests/spec2k'.format(root=FindBaseNaCl()))
+        setup = 'SetupGcc' + {
+            'arm32': 'Arm',
+            'x8632': 'X8632'}[args.target] + 'Opt'
+        shellcmd(['./run_all.sh',
+                  'RunTimedBenchmarks',
+                  setup,
+                  'train'] + args.comps)
 
 if __name__ == '__main__':
     main()