[OE-core] [PATCH] gcc-target: Enable fp arch extention when fpu is available

[Andre McCurdy]

On Tue, Jun 19, 2018 at 10:21 PM, Khem Raj <raj.khem at gmail.com> wrote:
> This is especially needed when defaulting to hard-float ABI
> Fixes errors e.g.
> cc1: error: -mfloat-abi=hard: selected processor lacks an FPU
>
> Fixes [YOCTO #12795]
>
> Signed-off-by: Khem Raj <raj.khem at gmail.com>
> Cc: Ross Burton <ross.burton at intel.com>
> ---
>  meta/recipes-devtools/gcc/gcc-target.inc | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/meta/recipes-devtools/gcc/gcc-target.inc b/meta/recipes-devtools/gcc/gcc-target.inc
> index 56e4b95af4..92cad28b7a 100644
> --- a/meta/recipes-devtools/gcc/gcc-target.inc
> +++ b/meta/recipes-devtools/gcc/gcc-target.inc
> @@ -14,9 +14,9 @@ EXTRA_OECONF_append_linuxstdbase = " --enable-clocale=gnu"
>  # specific). For example, for ARM, ARMv6+ adds atomic instructions that may
>  # affect the ABI in the gcc-runtime libs. Since we can't rely on gcc on the
>  # target to always be passed -march etc, its built-in default needs to be safe.
> -EXTRA_OECONF_append_armv6 = " --with-arch=armv6"
> -EXTRA_OECONF_append_armv7a = " --with-arch=armv7-a"
> -EXTRA_OECONF_append_armv7ve = " --with-arch=armv7ve"
> +EXTRA_OECONF_append_armv6 = " --with-arch=armv6${@'+fp' if d.getVar('TARGET_FPU') == 'hard' else ''}"
> +EXTRA_OECONF_append_armv7a = " --with-arch=armv7-a${@'+fp' if d.getVar('TARGET_FPU') == 'hard' else ''}"
> +EXTRA_OECONF_append_armv7ve = " --with-arch=armv7ve${@'+fp' if d.getVar('TARGET_FPU') == 'hard' else ''}"

Does this work for gcc7?

>  # libcc1 requres gcc_cv_objdump when cross build, but gcc_cv_objdump is
>  # set in subdir gcc, so subdir libcc1 can't use it, export it here to
> --
> 2.17.1
>
> --
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