Make a VM crash more obvious.

Make a VM crash more obvious.

Committed: https://code.google.com/p/dart/source/detail?r=5774

[ahe, 2012-03-22 18:42:29]

Will print something like:


$ ./tools/test.py -mrelease
Command: .../dart/tools/testing/bin/macos/dart .../dart/tools/test.dart
-mrelease
CRASHED with exit code -11 (0xfffffff5)

[Emily Fortuna, 2012-03-22 20:40:48]

lgtm, with explanation, please. 
Sorry this was delayed. For the record, we deleted the out directories on the
VM, and the crash "went away" (for now). The same behavior did not fix our
browser bots, though.

https://chromiumcodereview.appspot.com/9838017/diff/1/dart/tools/utils.py
File dart/tools/utils.py (right):

https://chromiumcodereview.appspot.com/9838017/diff/1/dart/tools/utils.py#new...
dart/tools/utils.py:269: return 0x80000000 & exit_code
where's the x8000000 coming from?

[ahe, 2012-03-22 20:46:32]

https://chromiumcodereview.appspot.com/9838017/diff/1/dart/tools/utils.py
File dart/tools/utils.py (right):

https://chromiumcodereview.appspot.com/9838017/diff/1/dart/tools/utils.py#new...
dart/tools/utils.py:269: return 0x80000000 & exit_code
On 2012/03/22 20:40:48, Emily Fortuna wrote:
> where's the x8000000 coming from?

I don't know. All I know is that this is in test.py that is running on all the
V8 build bots and it seems to work. See
http://code.google.com/p/v8/source/browse/branches/bleeding_edge/tools/test.p...

[Emily Fortuna, 2012-03-22 20:47:45]

https://chromiumcodereview.appspot.com/9838017/diff/1/dart/tools/utils.py
File dart/tools/utils.py (right):

https://chromiumcodereview.appspot.com/9838017/diff/1/dart/tools/utils.py#new...
dart/tools/utils.py:269: return 0x80000000 & exit_code
On 2012/03/22 20:46:32, ahe wrote:
> On 2012/03/22 20:40:48, Emily Fortuna wrote:
> > where's the x8000000 coming from?
> 
> I don't know. All I know is that this is in test.py that is running on all the
> V8 build bots and it seems to work. See
>
http://code.google.com/p/v8/source/browse/branches/bleeding_edge/tools/test.p...

Curious. Sgtm...