Re: [gofrontend-dev] Re: GO tools for gccgo cross

["Lynn A. Boger" <laboger at linux dot vnet dot ibm dot com>]

On 05/22/2015 05:50 PM, Ian Lance Taylor wrote:
> On Fri, May 22, 2015 at 3:11 PM, Andrew Chambers
> <andrewchamberss@gmail.com> wrote:
> > I'm not suggesting breaking go conventions, I just think the default if no
> > GOARCH is specified then it should match --target.
> Sounds good to me.
>
> > Perhaps we could check the symlink name for the target triple if no GOARCH
> > is set.
> We should probably build it into the tool, perhaps in zdefaultcc.go
> created in gotools/Makefile.am.
I'm not sure exactly what is meant here.

If you build a native gccgo and its corresponding native go tool, I 
think it should have the plain name 'go' and accept any GOARCH and GOOS 
values to indicate the cross compile target, and use the correct cross 
gccgo (via target triple name) based on that.  golang determines the 
cross compiler based on the GOOS and GOARCH settings and I think it 
should work the same way when using gccgo if possible.

If you build a cross gccgo and want to have a cross go tool dedicated to 
that cross gccgo then the cross go tool it makes sense to have the 
target triple name so it is clear it is not the native go tool.  
(Realize in this case the native gccgo will have to have been built 
since any go tool, cross or not, has to run natively and have been built 
using the native gccgo.)

What symlink do you mean?  On one system (like a build machine) there 
could be multiple cross gccgo compilers and therefore multiple cross go 
tools for those compilers, so then what is the symlink and what would it 
be set to?

> Ian