linux-kernel - Re: [PATCH 1/1] nds32: Fix gcc 8.0 compiler option incompatible.

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Message-ID: <CAEbi=3fPg0pCFuRiizmU68r8_N4jC8ANVThf0kQXunkp+rOuNw@mail.gmail.com>
Date:   Fri, 19 Oct 2018 17:24:24 +0800
From:   Greentime Hu <green.hu@...il.com>
To:     Nickhu <nickhu@...estech.com>
Cc:     Greentime <greentime@...estech.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Arnd Bergmann <arnd@...db.de>, Zong Li <zong@...estech.com>,
        Vincent Chen <deanbo422@...il.com>
Subject: Re: [PATCH 1/1] nds32: Fix gcc 8.0 compiler option incompatible.

Nickhu <nickhu@...estech.com> 於 2018年10月18日 週四 下午4:38寫道：
>
>         When the kernel configs of ftrace and frame pointer options are
> choosed, the compiler option of kernel will incompatible.
>         Error message:
>                 nds32le-linux-gcc: error: -pg and -fomit-frame-pointer are incompatible
>
> Signed-off-by: Nickhu <nickhu@...estech.com>
> Signed-off-by: Zong Li <zong@...estech.com>
> ---
>  arch/nds32/mm/Makefile | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/arch/nds32/mm/Makefile b/arch/nds32/mm/Makefile
> index 6b6855852223..7c5c15ad854a 100644
> --- a/arch/nds32/mm/Makefile
> +++ b/arch/nds32/mm/Makefile
> @@ -4,4 +4,8 @@ obj-y                           := extable.o tlb.o \
>
>  obj-$(CONFIG_ALIGNMENT_TRAP)   += alignment.o
>  obj-$(CONFIG_HIGHMEM)           += highmem.o
> -CFLAGS_proc-n13.o              += -fomit-frame-pointer
> +
> +ifdef CONFIG_FUNCTION_TRACER
> +CFLAGS_REMOVE_proc.o     = $(CC_FLAGS_FTRACE)
> +endif
> +CFLAGS_proc.o              += -fomit-frame-pointer
Hi Nick,

Thanks.
Acked-by: Greentime Hu <greentime@...estech.com>