[OE-core] [PATCH 4/8] [linux-yocto] allow overriding compiler name in KConfig

[Bruce Ashfield]

On Tue, Aug 23, 2016 at 3:25 AM, Jérémy Rosen <jeremy.rosen at smile.fr> wrote:

> The KConfig infrastructure hardwires the compiler name to gcc, which breaks
> the BUILD_CC feature. This is needed even when cross compiling because
> make *config rely on the kconfig infrastructure
>

Can you elaborate ? I'm not aware of any issues with either the host builds
or
target builds with the kernel.

If there's an issue, we need to fix it upstream .. not here.


> ---
>  meta/recipes-kernel/linux/linux-yocto.inc
>                              |  4 ++++
>  meta/recipes-kernel/linux/linux-yocto/0001-Allow-
> overriding-host-compiler-name-from-environment.patch | 32
> ++++++++++++++++++++++++++++++++
>  2 files changed, 36 insertions(+), 0 deletions(-)
>  create mode 100644 meta/recipes-kernel/linux/linux-yocto/0001-Allow-
> overriding-host-compiler-name-from-environment.patch
>
> diff --git a/meta/recipes-kernel/linux/linux-yocto.inc
> b/meta/recipes-kernel/linux/linux-yocto.inc
> index 98a48ec..63c1531 100644
> --- a/meta/recipes-kernel/linux/linux-yocto.inc
> +++ b/meta/recipes-kernel/linux/linux-yocto.inc
> @@ -58,3 +58,7 @@ do_install_append(){
>  addtask kernel_link_images after do_compile before do_install
>  addtask validate_branches before do_patch after do_kernel_checkout
>  addtask kernel_configcheck after do_configure before do_compile
> +
> +SRC_URI_append = " file://0001-Allow-overriding-host-compiler-name-from-
> environment.patch"
>

We don't carry patches to linux-yocto like this, they are sent to the
linux-yocto mailing list, and
integrated into the tree itself.

Bruce


> +export HOSTCC = "${BUILD_CC}"
> +export HOSTCXX = "${BUILD_CXX}"
> diff --git a/meta/recipes-kernel/linux/linux-yocto/0001-Allow-
> overriding-host-compiler-name-from-environment.patch
> b/meta/recipes-kernel/linux/linux-

yocto/0001-Allow-overriding-host-compiler-name-from-environment.patch
> new file mode 100644
> index 0000000..6fcfbc8
> --- /dev/null
> +++ b/meta/recipes-kernel/linux/linux-yocto/0001-Allow-
> overriding-host-compiler-name-from-environment.patch
> @@ -0,0 +1,32 @@
> +From 0ce4c4f29b5d456a7707e870c7affe524f7c8807 Mon Sep 17 00:00:00 2001
> +From: =?UTF-8?q?J=C3=A9r=C3=A9my=20Rosen?= <jeremy.rosen at smile.fr>
> +Date: Tue, 16 Aug 2016 22:39:29 +0200
> +Subject: [PATCH] Allow overriding host-compiler name from environment
> + variables
> +
> +---
> + Makefile | 8 ++++----
> + 1 file changed, 4 insertions(+), 4 deletions(-)
> +
> +diff --git a/Makefile b/Makefile
> +index 70dea02..1f0d2d2 100644
> +--- a/Makefile
> ++++ b/Makefile
> +@@ -295,10 +295,10 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then
> echo $$BASH; \
> +         else if [ -x /bin/bash ]; then echo /bin/bash; \
> +         else echo sh; fi ; fi)
> +
> +-HOSTCC       = gcc
> +-HOSTCXX      = g++
> +-HOSTCFLAGS   = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2
> -fomit-frame-pointer -std=gnu89
> +-HOSTCXXFLAGS = -O2
> ++HOSTCC       ?= gcc
> ++HOSTCXX      ?= g++
> ++HOSTCFLAGS   ?= -Wall -Wmissing-prototypes -Wstrict-prototypes -O2
> -fomit-frame-pointer -std=gnu89
> ++HOSTCXXFLAGS ?= -O2
> +
> + ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1)
> + HOSTCFLAGS  += -Wno-unused-value -Wno-unused-parameter \
> +--
> +2.8.1
> +
> --
> git-series 0.8.9
> --
> _______________________________________________
> Openembedded-core mailing list
> Openembedded-core at lists.openembedded.org
> http://lists.openembedded.org/mailman/listinfo/openembedded-core
>



-- 
"Thou shalt not follow the NULL pointer, for chaos and madness await thee
at its end"
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