Help with JIT talk for tomorrow

[Charles K Pepperdine]

The ! means the method has exception handlers. I'm not sure that I understand Remi's answer. Here's some code from sharedRuntime.cpp. A number of other files mention PrintCompilation but it's late so I've not sorted out where the main compile is logged. If it's in compile.cpp I've completely missed it ;-)



  if (PrintCompilation) {
    ttyLocker ttyl;
    tty->print("---   n%s ", (method->is_synchronized() ? "s" : " "));
    method->print_short_name(tty);
    if (method->is_static()) {
      tty->print(" (static)");
    }
    tty->cr();
  }

Regards,
Kirk

On Oct 5, 2011, at 1:47 AM, Charles Oliver Nutter wrote:

> Hey all...I'm updating and expanding my talk on C2 and will be posting
> some questions. Hopefully there's someone out there who can answer
> them :)
> 
> First up... given this output from PrintCompilation, what do the "!"
> and "n" and "%" mean?
> 
> Also, in Java 7 there's now two numbers instead of one at the begining
> of the line...what are they?
> 
>   1401   70             java.util.concurrent.ConcurrentHashMap::hash (49 bytes)
>   1412   71             java.lang.String::indexOf (7 bytes)
>   1420   72   !         java.io.BufferedReader::readLine (304 bytes)
>   1420   73             sun.nio.cs.UTF_8$Decoder::decodeArrayLoop (543 bytes)
>   1422   42             java.util.zip.ZipCoder::getBytes (192 bytes)
> made not entrant
>   1435   74     n       java.lang.Object::hashCode (0 bytes)
>   1443   29   !         sun.misc.URLClassPath$JarLoader::getResource
> (91 bytes)   made zombie
>   1443   25             sun.misc.URLClassPath::getResource (74 bytes)
>  made zombie
>   1443   36             sun.misc.URLClassPath::getResource (74 bytes)
>  made not entrant
>   1443   43             java.util.zip.ZipCoder::encoder (35 bytes)
> made not entrant
>   1449   75             java.lang.String::endsWith (15 bytes)
>   1631    1 %           sun.misc.URLClassPath::getResource @ 39 (74 bytes)
>   1665   76             java.lang.ClassLoader::checkName (43 bytes)
> 
> - Charlie

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