[U-Boot] [PATCH 2/4] kbuild: add CONFIG_ prefix to USE_PRIVATE_LIBS
Stephen Warren
swarren at wwwdotorg.org
Thu Feb 27 18:07:29 CET 2014
On 02/27/2014 07:28 AM, Masahiro Yamada wrote:
> Before this commit, USE_PRIVATE_LIBS is defined in
> arch-specific config.mk and referenced in
> arch/$(ARCH)/lib/Makefile.
I think you need to s/USE_PRIVATE_LIBS/USE_PRIVATE_LIBGCC/ throughout
the patch subject and description. With that change,
Acked-by: Stephen Warren <swarren at nvidia.com>
> diff --git a/Makefile b/Makefile
....
> +ifdef CONFIG_USE_PRIVATE_LIBGCC
> +ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
> PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
> else
> +PLATFORM_LIBGCC = -L $(CONFIG_USE_PRIVATE_LIBGCC) -lgcc
> endif
> else
Here, it seems that CONFIG_USE_PRIVATE_LIBGCC can be (a) unset (b) set
to y, (c) set to a specific library path name.
> diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
> +lib-$(CONFIG_USE_PRIVATE_LIBGCC) += _ashldi3.o _ashrdi3.o _divsi3.o \
> + _lshrdi3.o _modsi3.o _udivsi3.o _umodsi3.o div0.o
In case (c) above, that will set variable lib-$(the_library_path_name).
I guess that variable simply won't be used, so that's OK, assuming that
the path name doesn't contain any characters that are illegal as a make
variable name. That's probably true though.
> diff --git a/spl/Makefile b/spl/Makefile
> # Add GCC lib
> +ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
> PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
> PLATFORM_LIBS := $(filter-out %/lib.a, $(filter-out -lgcc, $(PLATFORM_LIBS))) $(PLATFORM_LIBGCC)
> endif
Should the SPL code here also handle case (c) above? I suppose that's a
pre-existing issue, and not related to this patch though, so feel free
to ignore it.
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