[Buildroot] [PATCH 1/2] toolchain: introduce BR2_TOOLCHAIN_HAS_GCC_BUG_93847

[Thomas Petazzoni <thomas.petazzoni@bootlin.com>]

On Thu, 20 Feb 2020 16:40:03 +0100
Giulio Benetti <giulio.benetti@benettiengineering.com> wrote:

> git package fails to build for the Nios2 architecture with optimization
> enabled with gcc < 9.x:
> http://autobuild.buildroot.net/results/924/92484c49b655e4aa78ca52f124c6d8f605b9d06b/
> 
> It's been reported upstream:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93847
> 
> Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
> ---
>  toolchain/Config.in | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/toolchain/Config.in b/toolchain/Config.in
> index 973c03254f..b8c2f79a36 100644
> --- a/toolchain/Config.in
> +++ b/toolchain/Config.in
> @@ -159,6 +159,14 @@ config BR2_TOOLCHAIN_HAS_GCC_BUG_90620
>  	bool
>  	default y if BR2_microblaze
>  
> +# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93847
> +# ICE: compiler error: Segmentation fault on Nios II. This bug
> +# no longer exists in gcc 9.x.
> +config BR2_TOOLCHAIN_HAS_GCC_BUG_93847
> +	bool
> +	default y if BR2_nios2
> +	depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_9

	default y if BR2_nios2 && !BR2_TOOLCHAIN_GCC_AT_LEAST_9

felt a bit simpler/easier to read, so I changed it like this and
applied to master. Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com