[crosperf] Clean up exceptions.

Found all instances of 'raise Exception' and changed them to raise
something slightly more specific.  Changed a few 'except Exception'
statements appropriately as well.

BUG=chromium:566255
TEST=None

Change-Id: If2666bd55838342bc71431e5e6ab2157c2c9e125
Reviewed-on: https://chrome-internal-review.googlesource.com/270731
Commit-Ready: Caroline Tice <cmtice@google.com>
Tested-by: Caroline Tice <cmtice@google.com>
Reviewed-by: Yunlian Jiang <yunlian@google.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/test_gdb_dejagnu.py b/test_gdb_dejagnu.py
index a1c44dc9..4f44527f 100755
--- a/test_gdb_dejagnu.py
+++ b/test_gdb_dejagnu.py
@@ -32,12 +32,12 @@ class DejagnuAdapter(object):
            '--minilayout', '--jobs=8']
     ret = setup_chromeos.Main(cmd)
     if ret:
-      raise Exception('Failed to checkout chromeos')
+      raise RuntimeError('Failed to checkout chromeos')
     ## Do cros_sdk and setup_board, otherwise build_tc in next step will fail.
     cmd = 'cd {0} && cros_sdk --download'.format(self._chromeos_root)
     ret = self._cmd_exec.RunCommand(cmd, terminated_timeout=9000)
     if ret:
-      raise Exception('Failed to create chroot.')
+      raise RuntimeError('Failed to create chroot.')
 
   def SetupBoard(self):
     cmd = './setup_board --board=' + self._board
@@ -45,7 +45,7 @@ class DejagnuAdapter(object):
                                           cmd,
                                           terminated_timeout=4000)
     if ret:
-      raise Exception('Failed to setup board.')
+      raise RuntimeError('Failed to setup board.')
 
   def CheckGDB(self):
     args = [gdb_dejagnu.__file__, '--board=' + self._board,
@@ -135,7 +135,7 @@ def ProcessArguments(argv):
   options = parser.parse_args(argv)
 
   if not options.board or not options.remote:
-    raise Exception('--board and --remote are mandatory options.')
+    raise SyntaxError('--board and --remote are mandatory options.')
 
   return options