diff mbox series

[v2,1/2] Makefile: Export clang toolchain variables

Message ID 20181112042116.5271-2-joel@jms.id.au (mailing list archive)
State Not Applicable
Headers show
Series powerpc/boot: Fix cross compiling with clang | expand

Checks

Context Check Description
snowpatch_ozlabs/apply_patch fail Failed to apply to any branch
snowpatch_ozlabs/apply_patch warning next/apply_patch Patch failed to apply

Commit Message

Joel Stanley Nov. 12, 2018, 4:21 a.m. UTC
The powerpc makefile will use these in it's boot wrapper.

Signed-off-by: Joel Stanley <joel@jms.id.au>
---
 Makefile | 1 +
 1 file changed, 1 insertion(+)

Comments

Nick Desaulniers Nov. 12, 2018, 6:55 p.m. UTC | #1
On Sun, Nov 11, 2018 at 8:21 PM Joel Stanley <joel@jms.id.au> wrote:
>
> The powerpc makefile will use these in it's boot wrapper.
>
> Signed-off-by: Joel Stanley <joel@jms.id.au>
> ---
>  Makefile | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/Makefile b/Makefile
> index 09278330282d..840efe6eb54c 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -495,6 +495,7 @@ endif
>  ifneq ($(GCC_TOOLCHAIN),)
>  CLANG_FLAGS    += --gcc-toolchain=$(GCC_TOOLCHAIN)
>  endif
> +export CLANG_FLAGS
>  CLANG_FLAGS    += -no-integrated-as

Does this export CLANG_FLAGS before `-no-integrated-as` is set?
Either way, I think it would be clearer to export this after all the
relevant flags are set.

>  KBUILD_CFLAGS  += $(CLANG_FLAGS)
>  KBUILD_AFLAGS  += $(CLANG_FLAGS)
> --
> 2.19.1
>
Masahiro Yamada Nov. 13, 2018, 5:16 a.m. UTC | #2
On Tue, Nov 13, 2018 at 3:56 AM Nick Desaulniers
<ndesaulniers@google.com> wrote:
>
> On Sun, Nov 11, 2018 at 8:21 PM Joel Stanley <joel@jms.id.au> wrote:
> >
> > The powerpc makefile will use these in it's boot wrapper.
> >
> > Signed-off-by: Joel Stanley <joel@jms.id.au>
> > ---
> >  Makefile | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/Makefile b/Makefile
> > index 09278330282d..840efe6eb54c 100644
> > --- a/Makefile
> > +++ b/Makefile
> > @@ -495,6 +495,7 @@ endif
> >  ifneq ($(GCC_TOOLCHAIN),)
> >  CLANG_FLAGS    += --gcc-toolchain=$(GCC_TOOLCHAIN)
> >  endif
> > +export CLANG_FLAGS
> >  CLANG_FLAGS    += -no-integrated-as
>
> Does this export CLANG_FLAGS before `-no-integrated-as` is set?

This does not matter.

For example, KBUILD_CFLAGS accumulates several compiler flags
after it is marked as 'export'.


> Either way, I think it would be clearer to export this after all the
> relevant flags are set.

OK. It is just a matter of preference,
but I will move the export line below
when I pick up this patch set.



> >  KBUILD_CFLAGS  += $(CLANG_FLAGS)
> >  KBUILD_AFLAGS  += $(CLANG_FLAGS)
> > --
> > 2.19.1
> >
>
>
> --
> Thanks,
> ~Nick Desaulniers
Masahiro Yamada Nov. 13, 2018, 11:34 p.m. UTC | #3
On Mon, Nov 12, 2018 at 1:21 PM Joel Stanley <joel@jms.id.au> wrote:
>
> The powerpc makefile will use these in it's boot wrapper.
>
> Signed-off-by: Joel Stanley <joel@jms.id.au>
> ---


Applied to linux-kbuild.
Thanks!


>  Makefile | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/Makefile b/Makefile
> index 09278330282d..840efe6eb54c 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -495,6 +495,7 @@ endif
>  ifneq ($(GCC_TOOLCHAIN),)
>  CLANG_FLAGS    += --gcc-toolchain=$(GCC_TOOLCHAIN)
>  endif
> +export CLANG_FLAGS
>  CLANG_FLAGS    += -no-integrated-as
>  KBUILD_CFLAGS  += $(CLANG_FLAGS)
>  KBUILD_AFLAGS  += $(CLANG_FLAGS)
> --
> 2.19.1
>
diff mbox series

Patch

diff --git a/Makefile b/Makefile
index 09278330282d..840efe6eb54c 100644
--- a/Makefile
+++ b/Makefile
@@ -495,6 +495,7 @@  endif
 ifneq ($(GCC_TOOLCHAIN),)
 CLANG_FLAGS	+= --gcc-toolchain=$(GCC_TOOLCHAIN)
 endif
+export CLANG_FLAGS
 CLANG_FLAGS	+= -no-integrated-as
 KBUILD_CFLAGS	+= $(CLANG_FLAGS)
 KBUILD_AFLAGS	+= $(CLANG_FLAGS)