On Mon, Oct 5, 2020 at 4:27 PM Juraj Linkeš <[email protected]> wrote:
>
>
>
> > -----Original Message-----
> > From: Jerin Jacob <[email protected]>
> > Sent: Sunday, October 4, 2020 10:30 AM
> > To: Juraj Linkeš <[email protected]>
> > Cc: Thomas Monjalon <[email protected]>; David Marchand
> > <[email protected]>; Aaron Conole <[email protected]>;
> > Michael Santana <[email protected]>; dpdk-dev <[email protected]>
> > Subject: Re: [dpdk-dev] [PATCH v2 1/3] build: add aarch64 clang to meson 
> > cross-
> > compile
> >
> > On Thu, Oct 1, 2020 at 4:07 PM Juraj Linkeš <[email protected]>
> > wrote:
> > >
> > > Create meson cross file arm64_armv8_linux_clang_ubuntu1804.
> > > Use clang/LLVM toolchain with sysroot pointing to gcc cross stdlib.
> > >
> > > Signed-off-by: Juraj Linkeš <[email protected]>
> > > ---
> > >  config/arm/arm64_armv8_linux_clang_ubuntu1804 | 20
> > > +++++++++++++++++++
> >
> > IMO, if we are adding a specific OS distribution-specific configuration 
> > then it
> > won't scale.
> > Why not have just arm64_armv8_linux_clang ?
>
> CFLAGS, LDFLAGS, c_args and c_link_args don't work when cross-compiling (at 
> least they didn't work when I tested it) and that means we have to put the 
> paths to stdlib (which llvm/clang doesn't implement) into a cross file

I am using cross-build, following syntax is working
CFLAGS='-g -ggdb3' meson build

> The arm64_armv8_linux_clang_ubuntu1804 contains paths that work with ubuntu 
> clang/gcc packages (and would thus be used in CI). We can't have a generic 
> cross file for clang because of this path limitation.

If ubuntu 18.04 needs some fix up like adding the stuff to PATH etc,
we could do a different stage in Travis ci. right?

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