RFR: 7200065 Cross-compilation changes to support the new-build

[David Holmes]

On 23/09/2012 3:44 AM, Fredrik Öhrström wrote:
> The variable HOST.COMPILE.CXX points to the compiler used to create a
> binary that can be
> run on the build platform. But for unknown reasons it contains the
> standard CFLAGS and CXXFLAGS, which are used to create the binary for
> the platform where the jvm is going to be executed.

I'll have to look more closely at this because that is certainly not the 
case for real cross-compilation builds in the existing build. If it were 
the case then there is a lot more than just ARCHFLAG that would cause 
the host gcc to spit the dummy.

Thanks,
David

> Most of these flags do not hurt the compile for the build platform
> (though perhaps they are unnecessary) except the ARCHFLAG, which if not
> removed, will cross compile the adlc tool.
>
> //Fredrik
>
> Den fredagen den 21:e september 2012 skrev Kelly O'Hair:
>
>
>     What bothers me on this adlc.make change is that there is no comment
>     in the Makefile as to why ARCHFLAG is filtered out
>     of the options. Why is this necessary?
>
>     The defs.make file changes look fine.
>
>     -kto
>
>     On Sep 20, 2012, at 11:40 PM, David Holmes wrote:
>
>      > webrev:
>      >
>      > http://cr.openjdk.java.net/~dholmes/7200065/webrev/
>      >
>      > These are Fredrik's contributions from build-infra being moved to
>     mainline (to join the changes Kelly pushed the other day). There is
>     a slight change to Fredrik's original changeset due to a bug with
>     the old build (PATH_SEP wouldn't get set) - and it's simpler to use
>     ?:= than ifdef.
>      >
>      > I'm acting as one reviewer but would welcome other eyes.
>      >
>      > Thanks,
>      > David
>