linux-kernel - Re: [PATCH] x86: vdso: Use $LD instead of $CC to link

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Message-ID: <alpine.DEB.2.21.1808031223500.1745@nanos.tec.linutronix.de>
Date:   Fri, 3 Aug 2018 12:26:23 +0200 (CEST)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Alistair Strachan <astrachan@...gle.com>
cc:     linux-kernel@...r.kernel.org, Andy Lutomirski <luto@...nel.org>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        x86@...nel.org, kernel-team@...roid.com, joel@...lfernandes.com
Subject: Re: [PATCH] x86: vdso: Use $LD instead of $CC to link

On Wed, 18 Jul 2018, Alistair Strachan wrote:
>  export CPPFLAGS_vdso.lds += -P -C
>  
> -VDSO_LDFLAGS_vdso.lds = -m64 -Wl,-soname=linux-vdso.so.1 \
> -			-Wl,--no-undefined \
> -			-Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096 \
> -			$(DISABLE_LTO)
> +VDSO_LDFLAGS_vdso.lds = -m elf_x86_64 -soname linux-vdso.so.1 --no-undefined \
> +			-z max-page-size=4096 -z common-page-size=4096

Aside of the fact that it does not apply to upstream, why is this dropping
the $(DISABLE_LTO) part?

The changelog is utterly silent about that.

Thanks,

	tglx