gcsections: apply section removal also in C++, not only in C

From: Peter Marko <peter.marko@siemens.com>

Currently only CFLAGS contains sections optimizations.
This is used during C compilation.
C++ compilation uses CXXFLAGS instead.

I did not introduce CXXFLAGS_SECTION_REMOVAL because the options
are identical in C and C++, while adding it would add whole lot
of additional useless lines of code to maintain.

Signed-off-by: Peter Marko <peter.marko@siemens.com>
---
 meta-poky/conf/distro/include/gcsections.inc | 2 ++
 1 file changed, 2 insertions(+)

Hello Peter,

I have collected it but this patch should have gone to the poky mailing
list as this is for meta-yocto.

On 29/06/2023 14:28:08+0200, Peter Marko via lists.openembedded.org wrote:
> From: Peter Marko <peter.marko@siemens.com>
> 
> Currently only CFLAGS contains sections optimizations.
> This is used during C compilation.
> C++ compilation uses CXXFLAGS instead.
> 
> I did not introduce CXXFLAGS_SECTION_REMOVAL because the options
> are identical in C and C++, while adding it would add whole lot
> of additional useless lines of code to maintain.
> 
> Signed-off-by: Peter Marko <peter.marko@siemens.com>
> ---
>  meta-poky/conf/distro/include/gcsections.inc | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/meta-poky/conf/distro/include/gcsections.inc b/meta-poky/conf/distro/include/gcsections.inc
> index a1f8651ae9..0e7bd2efff 100644
> --- a/meta-poky/conf/distro/include/gcsections.inc
> +++ b/meta-poky/conf/distro/include/gcsections.inc
> @@ -27,8 +27,10 @@ LDFLAGS_SECTION_REMOVAL:pn-nativesdk-mingw-w64-winpthreads = ""
>  
>  # set default for target
>  CFLAGS:append:class-target = " ${CFLAGS_SECTION_REMOVAL}"
> +CXXFLAGS:append:class-target = " ${CFLAGS_SECTION_REMOVAL}"
>  LDFLAGS:append:class-target = " ${LDFLAGS_SECTION_REMOVAL}"
>  
>  # set default for nativesdk
>  CFLAGS:append:class-nativesdk = " ${CFLAGS_SECTION_REMOVAL}"
> +CXXFLAGS:append:class-nativesdk = " ${CFLAGS_SECTION_REMOVAL}"
>  LDFLAGS:append:class-nativesdk = " ${LDFLAGS_SECTION_REMOVAL}"
> -- 
> 2.30.2
> 

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