Mercurial > hg > truffle
diff README_GRAAL.txt @ 5182:70aaaa83b93a
fixed gcc warning; added note to README_GRAAL about disabling the bootstrap step
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Mon, 02 Apr 2012 12:19:18 +0200 |
| parents | b97ef124c3ea |
| children | a89a18a57617 |
line wrap: on
line diff
--- a/README_GRAAL.txt Mon Apr 02 11:39:32 2012 +0200 +++ b/README_GRAAL.txt Mon Apr 02 12:19:18 2012 +0200 @@ -1,3 +1,5 @@ +Building Graal +-------------- There is a Python script in graal/mxtool/mx.py that simplifies working with the code base. It requires Python 2.7. While you can run this script by using an absolute path, it's more convenient to add graal/mxtool to your PATH environment variable so that the @@ -15,10 +17,21 @@ mx build debug mx build fastdebug -To run one of the correspong VM instances: +Running Graal +------------- + +To run the VM, use 'mx vm' in place of the standard 'java' command: - mx --product vm ... + mx vm ... + +To select the fastdebug or debug versions of the VM: + mx --fastdebug vm ... mx --debug vm ... -The default is --product. \ No newline at end of file +Graal has an optional bootstrap step where it compiles itself before +compiling any application code. This bootstrap step currently takes about 7 seconds +on a fast x64 machine. It's useful to disable this bootstrap step when running small +programs with the -XX:-BootstrapGraal options. For example: + + mx vm -XX:-BootstrapGraal ...