Debug builds

[cowwoc]

Hi Volker,

     Thanks for the clarification. I have been able to ascertain that 
adding full debug symbols to rt.jar would grow the file by 12MB 
(uncompressed, probably much smaller after you run PACK200). The 
debugging symbols for native code probably cost a lot more than that.

     Any idea on why rt.jar does not contain full debug symbols in the 
JDK? If I open a bug report for this, is anyone willing to push this 
through the system?

Thanks,
Gili

On 08/10/2013 6:03 AM, Volker Simonis wrote:
> Hi Gili,
>
> the mail threads you mention in your mail refer to debugging symbols 
> in the native VM implementation (i.e. libjvm.so) and not to debug 
> symbols in the java classes in rt.jar.
>
> Regards,
> Volker
>
>
>
> On Mon, Oct 7, 2013 at 7:45 PM, cowwoc <cowwoc at bbs.darktech.org 
> <mailto:cowwoc at bbs.darktech.org>> wrote:
>
>     On 07/10/2013 1:35 PM, Steven Schlansker wrote:
>
>         On Oct 7, 2013, at 8:30 AM, cowwoc <cowwoc at bbs.darktech.org
>         <mailto:cowwoc at bbs.darktech.org>> wrote:
>
>             Hi,
>
>                 Where did the old debug builds of rt.jar go (meaning,
>             rt.jar with full debug symbols, even for local variables)?
>             I scanned the mailing list for a related discussion but
>             couldn't find anything. It looks like somewhere down the
>             line a decision was made to remove these builds, but it's
>             not clear why that was. Also, out of curiosity, what is
>             the overhead of the full debug symbols (versus what we
>             ship now)? Couldn't we ship a full-debug rt.jar with the
>             JDK and ship the smaller rt.jar with the JRE?
>
>         +1 on shipping debug builds with the JDK, that would be very
>         helpful for those of us who are stupid^Wcurious enough to
>         step-debug into JDK classes.
>
>
>         I have personally wasted countless days/weeks/months debugging
>     problems that would have been solved much quicker by having full
>     debug symbols. Furthermore, as you can see at
>     http://mail.openjdk.java.net/pipermail/build-dev/2012-October/006892.html
>     the GNU/Linux world also ships with full debug symbols by default.
>
>         I'd like to take this opportunity to follow-up on
>     http://mail.openjdk.java.net/pipermail/build-dev/2012-October/006881.html.
>     I am confused because this post seems to be saying that Oracle JDK
>     7 ships full debug symbols, but in my experience this is not the
>     case. It would be good to get some answers from someone in the know.
>
>     Thanks,
>     Gili
>
>