RFR (XS) 8023406 - [windows] build_vm_def.sh takes too long even when BUILD_WIN_SA != 1
Staffan Larsen
staffan.larsen at oracle.com
Wed Aug 21 09:20:35 UTC 2013
Looks good.
/Staffan
On 20 aug 2013, at 23:11, Ioi Lam <ioi.lam at oracle.com> wrote:
> Please review a very small fix:
>
> http://cr.openjdk.java.net/~iklam/8023406/windows_build_vm_def_slow_001/
>
> Bug: make/windows/build_vm_def.sh takes too long even when BUILD_WIN_SA != 1
>
> http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=8023406
> https://jbs.oracle.com/bugs/browse/JDK-8023406
>
> Summary of fix:
>
> Reduce Windows build time to improve developer productivity.
>
> If BUILD_WIN_SA != 1, don't bother to generate vm.def, whose sole
> purpose is for SA to determine the type information of C++ objects.
>
> Instead, this rather eye-catching warning is printed, and 10 seconds
> are saved in the build cycle.
>
> ***
> *** Not building SA: BUILD_WIN_SA != 1
> *** C++ Vtables NOT included in vm.def
> *** This jvm.dll will NOT work properly with SA.
> ***
> *** When in doubt, set BUILD_WIN_SA=1, clean and rebuild.
> ***
>
> This does not affect JPRT -- JPRT always sets BUILD_WIN_SA=1.
>
> Result:
>
> Touch 1 .cpp file; rebuild: Total time is reduced 15 seconds -> 5 seconds.
>
> Tests:
>
> [0] Manual testing with both create.bat (IDE build) and build.bat
> VS 2008 + VS2010
> [1] JPRT (windows.* only)
> [2] I built a jvm.dll without BUILD_WIN_SA=0, and it ran Eclipsed without
> any problem.
>
> Thanks
> - Ioi
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